diff --git a/Android.mk b/Android.mk
deleted file mode 100644
index 888404c..0000000
--- a/Android.mk
+++ /dev/null
@@ -1,4 +0,0 @@
-LOCAL_PATH := $(call my-dir)
-
-include $(call all-makefiles-under,$(LOCAL_PATH))
-
diff --git a/README.md b/README.md
index 0ad06a8..0f2c30f 100644
--- a/README.md
+++ b/README.md
@@ -1,15 +1,11 @@
-# bionic
+# bionic maintainer overview
 
 [bionic](https://en.wikipedia.org/wiki/Bionic_(software)) is Android's
 C library, math library, and dynamic linker.
 
-# Using bionic as an app developer
-
-See the [user documentation](docs/).
-
-# Working on bionic itself
-
-This documentation is about making changes to bionic itself.
+This document is a high-level overview of making changes to bionic itself.
+If you're trying to _use_ bionic, or want more in-depth information about
+some part of the implementation, see [all the bionic documentation](docs/).
 
 ## What are the big pieces of bionic?
 
diff --git a/TEST_MAPPING b/TEST_MAPPING
index f56e16a..60a4f61 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -10,6 +10,9 @@
       "name": "linker-unit-tests"
     },
     {
+      "name": "CtsBionicAppTestCases"
+    },
+    {
       "name": "CtsBionicTestCases"
     },
     {
@@ -54,6 +57,9 @@
       "name": "linker-unit-tests"
     },
     {
+      "name": "CtsBionicAppTestCases"
+    },
+    {
       "name": "CtsBionicTestCases"
     },
     {
diff --git a/android-changes-for-ndk-developers.md b/android-changes-for-ndk-developers.md
index 26e57b6..e9cfbac 100644
--- a/android-changes-for-ndk-developers.md
+++ b/android-changes-for-ndk-developers.md
@@ -11,12 +11,9 @@
 for details about changes in stack unwinding (crash dumps) between
 different releases.
 
-Required tools: the NDK has an _arch_-linux-android-readelf binary
-(e.g. arm-linux-androideabi-readelf or i686-linux-android-readelf)
-for each architecture (under toolchains/), but you can use readelf for
-any architecture, as we will be doing basic inspection only. On Linux
-you need to have the “binutils” package installed for readelf,
-and “pax-utils” for scanelf.
+Required tools: the NDK has an `llvm-readelf` binary that understands all the
+architecture-specific details of all Android's supported architectures. Recent
+versions of Android also have toybox readelf on the device.
 
 
 ## How we manage incompatible changes
@@ -38,42 +35,44 @@
 check logcat for warnings until their app stops functioning, so the
 toasts help bring some visibility to the issues before it's too late.
 
+
 ## Changes to library dependency resolution
 
 Until it was [fixed](https://issuetracker.google.com/36950617) in
-JB-MR2, Android didn't include the application library directory
+API level 18, Android didn't include the application library directory
 on the dynamic linker's search path. This meant that apps
 had to call `dlopen` or `System.loadLibrary` on all transitive
 dependencies before loading their main library. Worse, until it was
-[fixed](https://issuetracker.google.com/36935779) in JB-MR2, the
+[fixed](https://issuetracker.google.com/36935779) in API level 18, the
 dynamic linker's caching code cached failures too, so it was necessary
 to topologically sort your libraries and load them in reverse order.
 
-If you need to support Android devices running OS
-versions older than JB-MR2, you might want to consider
+If you need to support Android devices running OS versions older than
+API level 23, you might want to consider
 [ReLinker](https://github.com/KeepSafe/ReLinker) which claims to solve
-these problems automatically.
+these and other problems automatically.
 
 Alternatively, if you don't have too many dependencies, it can be easiest to
 simply link all of your code into one big library and sidestep the details of
 library and symbol lookup changes on all past (and future) Android versions.
 
+
 ## Changes to library search order
 
 We have made various fixes to library search order when resolving symbols.
 
-With API 22, load order switched from depth-first to breadth-first to
+With API level 22, load order switched from depth-first to breadth-first to
 fix dlsym(3).
 
-Before API 23, the default search order was to try the main executable,
+Before API level 23, the default search order was to try the main executable,
 LD_PRELOAD libraries, the library itself, and its DT_NEEDED libraries
-in that order. For API 23 and later, for any given library, the dynamic
+in that order. For API level 23 and later, for any given library, the dynamic
 linker divides other libraries into the global group and the local
 group. The global group is shared by all libraries and contains the main
 executable, LD_PRELOAD libraries, and any library with the DF_1_GLOBAL
 flag set (by passing “-z global” to ld(1)). The local group is
 the breadth-first transitive closure of the library and its DT_NEEDED
-libraries. The M dynamic linker searches the global group followed by
+libraries. The API level 23 dynamic linker searches the global group followed by
 the local group. This allows ASAN, for example, to ensure that it can
 intercept any symbol.
 
@@ -89,7 +88,7 @@
 ## RTLD_LOCAL (Available in API level >= 23)
 
 The dlopen(3) RTLD_LOCAL flag used to be ignored but is implemented
-correctly in API 23 and later. Note that RTLD_LOCAL is the default,
+correctly in API level 23 and later. Note that RTLD_LOCAL is the default,
 so even calls to dlopen(3) that didn’t explicitly use RTLD_LOCAL will
 be affected (unless they explicitly used RTLD_GLOBAL). With RTLD_LOCAL,
 symbols will not be made available to libraries loaded by later calls
@@ -98,10 +97,12 @@
 
 ## GNU hashes (Availible in API level >= 23)
 
-The GNU hash style available with --hash-style=gnu allows faster
-symbol lookup and is now supported by the dynamic linker in API 23 and
-above. (Use --hash-style=both if you want to build code that uses this
-feature >= Android M but still works on older releases.)
+The GNU hash style available with `--hash-style=gnu` allows faster
+symbol lookup and is supported by Android's dynamic linker in API level 23 and
+above. Use `--hash-style=both` if you want to build code that uses this
+feature in new enough releases but still works on older releases.
+If you're using the NDK, clang chooses the right option
+(automatically)[https://github.com/android/ndk/issues/2005].
 
 
 ## Correct soname/path handling (Available in API level >= 23)
@@ -155,34 +156,26 @@
 ## Private API (Enforced for API level >= 24)
 
 Native libraries must use only public API, and must not link against
-non-NDK platform libraries. Starting with API 24 this rule is enforced and
-applications are no longer able to load non-NDK platform libraries. The
-rule is enforced by the dynamic linker, so non-public libraries
+non-NDK platform libraries. On devices running API level 24 or later,
+this rule is enforced and applications are no longer able to load all
+non-NDK platform libraries. This was to prevent future issues similar
+to the disruption caused when Android switched from OpenSSL to BoringSSL
+at API level 23.
+
+The rule is enforced by the dynamic linker, so non-public libraries
 are not accessible regardless of the way code tries to load them:
-System.loadLibrary, DT_NEEDED entries, and direct calls to dlopen(3)
+System.loadLibrary(), DT_NEEDED entries, and direct calls to dlopen(3)
 will all work exactly the same.
 
-Users should have a consistent app experience across updates,
-and developers shouldn't have to make emergency app updates to
-handle platform changes. For that reason, we recommend against using
-private C/C++ symbols. Private symbols aren't tested as part of the
-Compatibility Test Suite (CTS) that all Android devices must pass. They
-may not exist, or they may behave differently. This makes apps that use
-them more likely to fail on specific devices, or on future releases ---
-as many developers found when Android 6.0 Marshmallow switched from
-OpenSSL to BoringSSL.
-
-In order to reduce the user impact of this transition, we've identified
-a set of libraries that see significant use from Google Play's
-most-installed apps, and that are feasible for us to support in the
+In order to reduce the user impact of this transition, we identified
+a set of libraries that saw significant use from Google Play's
+most-installed apps and were feasible for us to support in the
 short term (including libandroid_runtime.so, libcutils.so, libcrypto.so,
-and libssl.so). In order to give you more time to transition, we will
-temporarily support these libraries; so if you see a warning that means
-your code will not work in a future release -- please fix it now!
-
-Between O and R, this compatibility mode could be disabled by setting a
-system property (`debug.ld.greylist_disabled`). This property is ignored
-in S and later.
+and libssl.so). In order to give app developers more time to transition,
+we allowed access to these libraries for apps with a target API level < 24.
+On devices running API level 26 to API level 30, this compatibility mode could be
+disabled by setting a system property (`debug.ld.greylist_disabled`).
+This property is ignored on devices running API level 31 and later.
 
 ```
 $ readelf --dynamic libBroken.so | grep NEEDED
@@ -198,7 +191,7 @@
  0x00000001 (NEEDED)                     Shared library: [libc.so]
 ```
 
-*Potential problems*: starting from API 24 the dynamic linker will not
+*Potential problems*: starting from API level 24 the dynamic linker will not
 load private libraries, preventing the application from loading.
 
 *Resolution*: rewrite your native code to rely only on public API. As a
@@ -236,15 +229,16 @@
 *Resolution*: remove the extra steps from your build that strip section
 headers.
 
+
 ## Text Relocations (Enforced for API level >= 23)
 
-Starting with API 23, shared objects must not contain text
-relocations. That is, the code must be loaded as is and must not be
-modified. Such an approach reduces load time and improves security.
+Apps with a target API level >= 23 cannot load shared objects that contain text
+relocations. Such an approach reduces load time and improves security. This was
+only a change for 32-bit, because 64-bit never supported text relocations.
 
-The usual reason for text relocations is non-position independent
-hand-written assembler. This is not common. Use the scanelf tool as
-described in our documentation for further diagnostics:
+The usual reason for text relocations was non-position independent
+hand-written assembler. This is not common. You can use the scanelf tool
+from the pax-utils debian package for further diagnostics:
 
 ```
 $ scanelf -qT libTextRel.so
@@ -254,10 +248,10 @@
 ```
 
 If you have no scanelf tool available, it is possible to do a basic
-check with readelf instead, look for either a TEXTREL entry or the
+check with readelf instead. Look for either a TEXTREL entry or the
 TEXTREL flag. Either alone is sufficient. (The value corresponding to the
 TEXTREL entry is irrelevant and typically 0 --- simply the presence of
-the TEXTREL entry declares that the .so contains text relocations). This
+the TEXTREL entry declares that the .so contains text relocations.) This
 example has both indicators present:
 
 ```
@@ -274,9 +268,8 @@
 
 *Potential problems*: Relocations enforce code pages being writable, and
 wastefully increase the number of dirty pages in memory. The dynamic
-linker has issued warnings about text relocations since Android K
-(API 19), but on API 23 and above it refuses to load code with text
-relocations.
+linker issued warnings about text relocations from API level 19, but on API
+level 23 and above refuses to load code with text relocations.
 
 *Resolution*: rewrite assembler to be position independent to ensure
 no text relocations are necessary. The
@@ -294,9 +287,9 @@
 leaving the business of finding the library at runtime to the dynamic
 linker.
 
-Before API 23, Android's dynamic linker ignored the full path, and
+Before API level 23, Android's dynamic linker ignored the full path, and
 used only the basename (the part after the last ‘/') when looking
-up the required libraries. Since API 23 the runtime linker will honor
+up the required libraries. Since API level 23 the runtime linker will honor
 the DT_NEEDED exactly and so it won't be able to load the library if
 it is not present in that exact location on the device.
 
@@ -313,8 +306,8 @@
 [C:\Users\build\Android\ci\jni\libBroken.so]
 ```
 
-*Potential problems*: before API 23 the DT_NEEDED entry's basename was
-used, but starting from API 23 the Android runtime will try to load the
+*Potential problems*: before API level 23 the DT_NEEDED entry's basename was
+used, but starting from API level 23 the Android runtime will try to load the
 library using the path specified, and that path won't exist on the
 device. There are broken third-party toolchains/build systems that use
 a path on a build host instead of the SONAME.
@@ -348,16 +341,18 @@
 configured your build system to generate incorrect SONAME entries (using
 the `-soname` linker option).
 
+
 ## `__register_atfork` (Available in API level >= 23)
 
 To allow `atfork` and `pthread_atfork` handlers to be unregistered on
-`dlclose`, the implementation changed in API level 23. Unfortunately this
-requires a new libc function `__register_atfork`. Code using these functions
-that is built with a target API level >= 23 therefore will not load on earlier
-versions of Android, with an error referencing `__register_atfork`.
+`dlclose`, API level 23 added a new libc function `__register_atfork`.
+This means that code using `atfork` or `pthread_atfork` functions that is
+built with a `minSdkVersion` >= 23 will not load on earlier versions of
+Android, with an error referencing `__register_atfork`.
 
-*Resolution*: build your code with an NDK target API level that matches your
-app's minimum API level, or avoid using `atfork`/`pthread_atfork`.
+*Resolution*: build your code with `minSdkVersion` that matches the minimum
+API level you actually support, or avoid using `atfork`/`pthread_atfork`.
+
 
 ## DT_RUNPATH support (Available in API level >= 24)
 
@@ -387,6 +382,7 @@
 into your app. The middleware vendor is aware of the problem and has a fix
 available.
 
+
 ## Invalid ELF header/section headers (Enforced for API level >= 26)
 
 In API level 26 and above the dynamic linker checks more values in
@@ -401,9 +397,10 @@
 ELF files. Note that using them puts application under high risk of
 being incompatible with future versions of Android.
 
-## Enable logging of dlopen/dlsym and library loading errors for apps (Available in Android O)
 
-Starting with Android O it is possible to enable logging of dynamic
+## Enable logging of dlopen/dlsym and library loading errors for apps (Available for API level >= 26)
+
+On devices running API level 26 or later you can enable logging of dynamic
 linker activity for debuggable apps by setting a property corresponding
 to the fully-qualified name of the specific app:
 ```
@@ -427,12 +424,13 @@
 adb shell setprop debug.ld.all dlerror,dlopen
 ```
 
+
 ## dlclose interacts badly with thread local variables with non-trivial destructors
 
 Android allows `dlclose` to unload a library even if there are still
 thread-local variables with non-trivial destructors. This leads to
 crashes when a thread exits and attempts to call the destructor, the
-code for which has been unloaded (as in [issue 360], fixed in P).
+code for which has been unloaded (as in [issue 360], fixed in API level 28).
 
 [issue 360]: https://github.com/android-ndk/ndk/issues/360
 
@@ -440,18 +438,31 @@
 set (so that calls to `dlclose` don't actually unload the library)
 are possible workarounds.
 
-|                   | Pre-M                      | M+      | P+    |
+|                   | API level < 23             | >= 23   | >= 28 |
 | ----------------- | -------------------------- | ------- | ----- |
 | No workaround     | Works for static STL       | Broken  | Works |
 | `-Wl,-z,nodelete` | Works for static STL       | Works   | Works |
 | No `dlclose`      | Works                      | Works   | Works |
 
-## Use of IFUNC in libc (True for all API levels on devices running Q)
 
-Starting with Android Q (API level 29), libc uses
-[IFUNC](https://sourceware.org/glibc/wiki/GNU_IFUNC) functionality in
-the dynamic linker to choose optimized assembler routines at run time
-rather than at build time. This lets us use the same `libc.so` on all
+## ELF TLS (Available for API level >= 29)
+
+Android supports [ELF TLS](docs/elf-tls.md) starting at API level 29. Since
+NDK r26, clang will automatically enable ELF TLS for `minSdkVersion 29` or
+higher. Otherwise, the existing emutls implementation (which uses
+`pthread_key_create()` behind the scenes) will continue to be used. This
+means that convenient C/C++ thread-local syntax is available at any API level;
+at worst it will perform similarly to "roll your own" thread locals using
+`pthread_key_create()` but at best you'll get the performance benefit of
+ELF TLS, and the NDK will take care of the details.
+
+
+## Use of IFUNC in libc (True for all API levels on devices running Android 10)
+
+On devices running API level 29, libc uses
+[IFUNC](https://sourceware.org/glibc/wiki/GNU_IFUNC)
+functionality in the dynamic linker to choose optimized assembler routines at
+run time rather than at build time. This lets us use the same `libc.so` on all
 devices, and is similar to what other OSes already did. Because the zygote
 uses the C library, this decision is made long before we know what API
 level an app targets, so all code sees the new IFUNC-using C library.
@@ -460,6 +471,7 @@
 with IFUNC relocations. The affected functions are from `<string.h>`, but
 may expand to include more functions (and more libraries) in future.
 
+
 ## Relative relocations (RELR)
 
 Android added experimental support for RELR relative relocations
@@ -476,23 +488,36 @@
 OS private use constants for RELR, nor for ELF files using packed
 relocations.
 
+Prior to API level 35, there was a bug that caused RELR relocations to
+be applied after packed relocations. This meant that ifunc resolvers
+referenced by `R_*_IRELATIVE` relocations in the packed relocation
+section would have been able to read globals with RELR relocations
+before they were relocated. The version of `lld` in the NDK has never
+produced binaries affected by this bug, but third-party toolchains
+should make sure not to store `R_*_IRELATIVE` relocations in packed
+relocation sections in order to maintain compatibility with API levels
+below 35.
+
 You can read more about relative relocations
 and their long and complicated history at
 https://maskray.me/blog/2021-10-31-relative-relocations-and-relr.
 
+
 ## No more sentinels in .preinit_array/.init_array/.fini_array sections of executables (in All API levels)
 
-In Android <= U and NDK <= 26, Android used sentinels in these sections of
-executables to locate the start and end of arrays. However, when building with
-LTO, the function pointers in the arrays can be reordered, making sentinels no
-longer work. This prevents constructors for global C++ variables from being
-called in static executables when using LTO.
+In Android <= API level 34 and NDK <= r26, Android used sentinels in the
+`.preinit_array`/`.init_array`/`.fini_array` sections of executables to locate
+the start and end of these arrays. When building with LTO, the function pointers
+in the arrays can be reordered, making sentinels no longer work. This prevents
+constructors for global C++ variables from being called in static executables
+when using LTO.
 
-To fix this, in Android >= V and NDK >= 27, we removed sentinels and switched
-to using symbols inserted by LLD (like `__init_array_start`,
-`__init_array_end`) to locate the arrays. This also avoids keeping a section
-when there are no corresponding functions.
+To fix this, in Android >= API level 35 and NDK >= r27, we removed sentinels
+and switched to using symbols inserted by LLD (like `__init_array_start`,
+`__init_array_end`) to locate the arrays. This also avoids the need for an
+empty section when there are no corresponding functions.
 
-For dynamic executables, we kept sentinel support in crtbegin_dynamic.o and
-libc.so. This ensures that executables built with newer crtbegin_dynamic.o
-(in NDK >= 27) work with older libc.so (in Android <= U), and vice versa.
+For dynamic executables, we kept sentinel support in `crtbegin_dynamic.o` and
+`libc.so`. This ensures that executables built with newer `crtbegin_dynamic.o`
+(in NDK >= r27) work with older `libc.so` (in Android <= API level 34), and
+vice versa.
diff --git a/benchmarks/Android.bp b/benchmarks/Android.bp
index 82bca21..d1cdfec 100644
--- a/benchmarks/Android.bp
+++ b/benchmarks/Android.bp
@@ -58,7 +58,7 @@
         "stdio_benchmark.cpp",
         "stdlib_benchmark.cpp",
         "string_benchmark.cpp",
-        "syscall_mmap_benchmark.cpp",
+        "syscall_mm_benchmark.cpp",
         "time_benchmark.cpp",
         "unistd_benchmark.cpp",
         "wctype_benchmark.cpp",
diff --git a/benchmarks/README.md b/benchmarks/README.md
index 3819b1a..319db25 100644
--- a/benchmarks/README.md
+++ b/benchmarks/README.md
@@ -19,6 +19,12 @@
 By default, `bionic-benchmarks` runs all of the benchmarks in alphabetical order. Pass
 `--benchmark_filter=getpid` to run just the benchmarks with "getpid" in their name.
 
+Note that we also build _static_ benchmark binaries.
+They're useful for testing on devices running different versions of Android, or running non-Android OSes.
+Those binaries are called `bionic-benchmarks-static` instead.
+Copy from `out/target/product/<device>/symbols/data/benchmarktest64/bionic-benchmarks-static` instead of
+`out/target/product/<device>/data/benchmarktest64/bionic-benchmarks-static` if you want symbols for perf(1).
+
 ### Host benchmarks
 
 See the `benchmarks/run-on-host.sh` script. The host benchmarks can be run with 32-bit or 64-bit
@@ -183,6 +189,5 @@
 
 Some devices have a `perf-setup.sh` script that locks CPU and GPU frequencies. Some TradeFed
 benchmarks appear to be using the script. For more information:
- * run `get_build_var BOARD_PERFSETUP_SCRIPT`
- * run `m perf-setup` to install the script into `${OUT}/data/local/tmp/perf-setup.sh`
+ * run `adb shell perf-setup.sh` to execute the script, it is already by default be installed on device for eng and userdebug build
  * see: https://android.googlesource.com/platform/platform_testing/+/refs/heads/main/scripts/perf-setup/
diff --git a/benchmarks/bionic_benchmarks.cpp b/benchmarks/bionic_benchmarks.cpp
index c0f956b..b88c6e5 100644
--- a/benchmarks/bionic_benchmarks.cpp
+++ b/benchmarks/bionic_benchmarks.cpp
@@ -372,7 +372,7 @@
 
 void RegisterGoogleBenchmarks(bench_opts_t primary_opts, bench_opts_t secondary_opts,
                               const std::string& fn_name, args_vector_t* run_args) {
-  if (g_str_to_func.find(fn_name) == g_str_to_func.end()) {
+  if (!g_str_to_func.contains(fn_name)) {
     errx(1, "ERROR: No benchmark for function %s", fn_name.c_str());
   }
   long iterations_to_use = primary_opts.num_iterations ? primary_opts.num_iterations :
@@ -523,39 +523,39 @@
 
   int page_sz = getpagesize();
   std::vector<int> sub_page_sizes = {page_sz / 2, page_sz / 4, page_sz / 8};
-  std::vector<int> multi_page_sizes = {page_sz, page_sz * 2, page_sz * 3, page_sz * 10,
-                                       page_sz * 100};
+  std::vector<int> multi_page_sizes = {page_sz,      page_sz * 2,  page_sz * 3,  page_sz * 10,
+                                       page_sz * 25, page_sz * 50, page_sz * 75, page_sz * 100};
   std::vector<int> all_page_sizes(sub_page_sizes);
   all_page_sizes.insert(all_page_sizes.end(), multi_page_sizes.begin(), multi_page_sizes.end());
 
-  std::map<std::string, args_vector_t> args_shorthand {
-    {"AT_COMMON_SIZES", GetArgs(kCommonSizes)},
-    {"AT_SMALL_SIZES", GetArgs(kSmallSizes)},
-    {"AT_MEDIUM_SIZES", GetArgs(kMediumSizes)},
-    {"AT_LARGE_SIZES", GetArgs(kLargeSizes)},
-    {"AT_ALL_SIZES", GetArgs(all_sizes)},
-    {"AT_SUB_PAGE_SIZES", GetArgs(sub_page_sizes)},
-    {"AT_MULTI_PAGE_SIZES", GetArgs(multi_page_sizes)},
-    {"AT_All_PAGE_SIZES", GetArgs(all_page_sizes)},
+  std::map<std::string, args_vector_t> args_shorthand{
+      {"AT_COMMON_SIZES", GetArgs(kCommonSizes)},
+      {"AT_SMALL_SIZES", GetArgs(kSmallSizes)},
+      {"AT_MEDIUM_SIZES", GetArgs(kMediumSizes)},
+      {"AT_LARGE_SIZES", GetArgs(kLargeSizes)},
+      {"AT_ALL_SIZES", GetArgs(all_sizes)},
+      {"AT_SUB_PAGE_SIZES", GetArgs(sub_page_sizes)},
+      {"AT_MULTI_PAGE_SIZES", GetArgs(multi_page_sizes)},
+      {"AT_ALL_PAGE_SIZES", GetArgs(all_page_sizes)},
 
-    {"AT_ALIGNED_ONEBUF", GetArgs(kCommonSizes, 0)},
-    {"AT_ALIGNED_ONEBUF_SMALL", GetArgs(kSmallSizes, 0)},
-    {"AT_ALIGNED_ONEBUF_MEDIUM", GetArgs(kMediumSizes, 0)},
-    {"AT_ALIGNED_ONEBUF_LARGE", GetArgs(kLargeSizes, 0)},
-    {"AT_ALIGNED_ONEBUF_ALL", GetArgs(all_sizes, 0)},
+      {"AT_ALIGNED_ONEBUF", GetArgs(kCommonSizes, 0)},
+      {"AT_ALIGNED_ONEBUF_SMALL", GetArgs(kSmallSizes, 0)},
+      {"AT_ALIGNED_ONEBUF_MEDIUM", GetArgs(kMediumSizes, 0)},
+      {"AT_ALIGNED_ONEBUF_LARGE", GetArgs(kLargeSizes, 0)},
+      {"AT_ALIGNED_ONEBUF_ALL", GetArgs(all_sizes, 0)},
 
-    {"AT_ALIGNED_TWOBUF", GetArgs(kCommonSizes, 0, 0)},
-    {"AT_ALIGNED_TWOBUF_SMALL", GetArgs(kSmallSizes, 0, 0)},
-    {"AT_ALIGNED_TWOBUF_MEDIUM", GetArgs(kMediumSizes, 0, 0)},
-    {"AT_ALIGNED_TWOBUF_LARGE", GetArgs(kLargeSizes, 0, 0)},
-    {"AT_ALIGNED_TWOBUF_ALL", GetArgs(all_sizes, 0, 0)},
+      {"AT_ALIGNED_TWOBUF", GetArgs(kCommonSizes, 0, 0)},
+      {"AT_ALIGNED_TWOBUF_SMALL", GetArgs(kSmallSizes, 0, 0)},
+      {"AT_ALIGNED_TWOBUF_MEDIUM", GetArgs(kMediumSizes, 0, 0)},
+      {"AT_ALIGNED_TWOBUF_LARGE", GetArgs(kLargeSizes, 0, 0)},
+      {"AT_ALIGNED_TWOBUF_ALL", GetArgs(all_sizes, 0, 0)},
 
-    // Do not exceed 512. that is about the largest number of properties
-    // that can be created with the current property area size.
-    {"NUM_PROPS", args_vector_t{ {1}, {4}, {16}, {64}, {128}, {256}, {512} }},
+      // Do not exceed 512. that is about the largest number of properties
+      // that can be created with the current property area size.
+      {"NUM_PROPS", args_vector_t{{1}, {4}, {16}, {64}, {128}, {256}, {512}}},
 
-    {"MATH_COMMON", args_vector_t{ {0}, {1}, {2}, {3} }},
-    {"MATH_SINCOS_COMMON", args_vector_t{ {0}, {1}, {2}, {3}, {4}, {5}, {6}, {7} }},
+      {"MATH_COMMON", args_vector_t{{0}, {1}, {2}, {3}}},
+      {"MATH_SINCOS_COMMON", args_vector_t{{0}, {1}, {2}, {3}, {4}, {5}, {6}, {7}}},
   };
 
   args_vector_t args_onebuf;
diff --git a/benchmarks/ctype_benchmark.cpp b/benchmarks/ctype_benchmark.cpp
index eab0133..b162ea7 100644
--- a/benchmarks/ctype_benchmark.cpp
+++ b/benchmarks/ctype_benchmark.cpp
@@ -16,68 +16,47 @@
 
 #include <ctype.h>
 
+#include <array>
+#include <numeric>
+#include <random>
+
 #include <benchmark/benchmark.h>
 #include "util.h"
 
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isalnum_y1, isalnum('A'));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isalnum_y2, isalnum('a'));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isalnum_y3, isalnum('0'));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isalnum_n, isalnum('_'));
+static std::array<int, 128> RandomAscii() {
+  std::array<int, 128> result;
+  std::iota(result.begin(), result.end(), 0);
+  std::shuffle(result.begin(), result.end(), std::mt19937{std::random_device{}()});
+  return result;
+}
 
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isalpha_y1, isalpha('A'));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isalpha_y2, isalpha('a'));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isalpha_n, isalpha('_'));
+#define CTYPE_BENCHMARK(__benchmark, fn)                        \
+  static void __benchmark##_##fn(benchmark::State& state) {     \
+    auto chars = RandomAscii();                                 \
+    for (auto _ : state) {                                      \
+      for (char ch : chars) {                                   \
+        benchmark::DoNotOptimize(fn(ch));                       \
+      }                                                         \
+    }                                                           \
+    state.SetBytesProcessed(state.iterations() * chars.size()); \
+  }                                                             \
+  BIONIC_BENCHMARK(__benchmark##_##fn)
 
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isascii_y, isascii('x'));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isascii_n, isascii(0x88));
+CTYPE_BENCHMARK(BM_ctype, isalpha);
+CTYPE_BENCHMARK(BM_ctype, isalnum);
+CTYPE_BENCHMARK(BM_ctype, isascii);
+CTYPE_BENCHMARK(BM_ctype, isblank);
+CTYPE_BENCHMARK(BM_ctype, iscntrl);
+CTYPE_BENCHMARK(BM_ctype, isgraph);
+CTYPE_BENCHMARK(BM_ctype, islower);
+CTYPE_BENCHMARK(BM_ctype, isprint);
+CTYPE_BENCHMARK(BM_ctype, ispunct);
+CTYPE_BENCHMARK(BM_ctype, isspace);
+CTYPE_BENCHMARK(BM_ctype, isupper);
+CTYPE_BENCHMARK(BM_ctype, isxdigit);
 
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isblank_y1, isblank(' '));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isblank_y2, isblank('\t'));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isblank_n, isblank('_'));
-
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_iscntrl_y1, iscntrl('\b'));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_iscntrl_y2, iscntrl('\x7f'));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_iscntrl_n, iscntrl('_'));
-
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isdigit_y, iscntrl('0'));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isdigit_n, iscntrl('_'));
-
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isgraph_y1, isgraph('A'));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isgraph_y2, isgraph('a'));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isgraph_y3, isgraph('0'));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isgraph_y4, isgraph('_'));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isgraph_n, isgraph(' '));
-
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_islower_y, islower('x'));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_islower_n, islower('X'));
-
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isprint_y1, isprint('A'));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isprint_y2, isprint('a'));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isprint_y3, isprint('0'));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isprint_y4, isprint('_'));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isprint_y5, isprint(' '));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isprint_n, isprint('\b'));
-
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_ispunct_y, ispunct('_'));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_ispunct_n, ispunct('A'));
-
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isspace_y1, isspace(' '));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isspace_y2, isspace('\t'));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isspace_n, isspace('A'));
-
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isupper_y, isupper('X'));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isupper_n, isupper('x'));
-
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isxdigit_y1, isxdigit('0'));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isxdigit_y2, isxdigit('a'));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isxdigit_y3, isxdigit('A'));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_isxdigit_n, isxdigit('_'));
-
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_toascii_y, isascii('x'));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_toascii_n, isascii(0x88));
-
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_tolower_y, tolower('X'));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_tolower_n, tolower('x'));
-
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_toupper_y, toupper('x'));
-BIONIC_TRIVIAL_BENCHMARK(BM_ctype_toupper_n, toupper('X'));
+CTYPE_BENCHMARK(BM_ctype, toascii);
+CTYPE_BENCHMARK(BM_ctype, tolower);
+CTYPE_BENCHMARK(BM_ctype, _tolower);
+CTYPE_BENCHMARK(BM_ctype, toupper);
+CTYPE_BENCHMARK(BM_ctype, _toupper);
diff --git a/benchmarks/linker_relocation/include/linker_reloc_bench_asm.h b/benchmarks/linker_relocation/include/linker_reloc_bench_asm.h
index 885e47f..ea63e36 100644
--- a/benchmarks/linker_relocation/include/linker_reloc_bench_asm.h
+++ b/benchmarks/linker_relocation/include/linker_reloc_bench_asm.h
@@ -44,9 +44,7 @@
 
 #elif defined(__riscv)
 
-// No `lga` in clang unless https://reviews.llvm.org/D107278 lands.
-// `la` is equivalent when using PIC (which we do) though.
-#define GOT_RELOC(sym) la a0, sym
+#define GOT_RELOC(sym) lga a0, sym
 #define CALL(sym) call sym@plt
 #define DATA_WORD(val) .quad val
 #define MAIN .globl main; main: li a0, 0; ret
diff --git a/benchmarks/suites/syscall.xml b/benchmarks/suites/syscall.xml
index c253a3f..5a0f904 100644
--- a/benchmarks/suites/syscall.xml
+++ b/benchmarks/suites/syscall.xml
@@ -2,42 +2,42 @@
 <fn>
   <name>BM_syscall_mmap_anon_rw</name>
   <iterations>10</iterations>
-  <args>AT_All_PAGE_SIZES</args>
+  <args>AT_ALL_PAGE_SIZES</args>
 </fn>
 <fn>
   <name>BM_syscall_mmap_anon_noreserve</name>
   <iterations>10</iterations>
-  <args>AT_All_PAGE_SIZES</args>
+  <args>AT_ALL_PAGE_SIZES</args>
 </fn>
 <fn>
   <name>BM_syscall_mmap_anon_none</name>
   <iterations>10</iterations>
-  <args>AT_All_PAGE_SIZES</args>
+  <args>AT_ALL_PAGE_SIZES</args>
 </fn>
 <fn>
   <name>BM_syscall_mmap_anon_rw_fixed</name>
   <iterations>10</iterations>
-  <args>AT_All_PAGE_SIZES</args>
+  <args>AT_ALL_PAGE_SIZES</args>
 </fn>
 <fn>
   <name>BM_syscall_mmap_anon_none_fixed</name>
   <iterations>10</iterations>
-  <args>AT_All_PAGE_SIZES</args>
+  <args>AT_ALL_PAGE_SIZES</args>
 </fn>
 <fn>
   <name>BM_syscall_mmap_file_rd_priv</name>
   <iterations>10</iterations>
-  <args>AT_All_PAGE_SIZES</args>
+  <args>AT_ALL_PAGE_SIZES</args>
 </fn>
 <fn>
   <name>BM_syscall_mmap_file_rw_shared</name>
   <iterations>10</iterations>
-  <args>AT_All_PAGE_SIZES</args>
+  <args>AT_ALL_PAGE_SIZES</args>
 </fn>
 <fn>
   <name>BM_syscall_mmap_file_rw_priv_fixed_start</name>
   <iterations>10</iterations>
-  <args>AT_All_PAGE_SIZES</args>
+  <args>AT_ALL_PAGE_SIZES</args>
 </fn>
 <fn>
   <name>BM_syscall_mmap_file_rw_priv_fixed_mid</name>
@@ -49,4 +49,72 @@
   <iterations>10</iterations>
   <args>AT_MULTI_PAGE_SIZES</args>
 </fn>
+<fn>
+  <name>BM_syscall_mmap_anon_mmap_only</name>
+  <iterations>10</iterations>
+  <args>AT_MULTI_PAGE_SIZES</args>
+</fn>
+<fn>
+  <name>BM_syscall_mmap_anon_munmap_only</name>
+  <iterations>10</iterations>
+  <args>AT_MULTI_PAGE_SIZES</args>
+</fn>
 
+<!-- madvise tests -->
+<fn>
+  <name>BM_syscall_mmap_anon_madvise_dontneed</name>
+  <iterations>10</iterations>
+  <args>AT_MULTI_PAGE_SIZES</args>
+</fn>
+<fn>
+  <name>BM_syscall_mmap_anon_madvise_pageout</name>
+  <iterations>10</iterations>
+  <args>AT_MULTI_PAGE_SIZES</args>
+</fn>
+<fn>
+  <name>BM_syscall_mmap_anon_madvise_free</name>
+  <iterations>10</iterations>
+  <args>AT_MULTI_PAGE_SIZES</args>
+</fn>
+
+<!-- mprotect tests -->
+<fn>
+  <name>BM_syscall_mmap_anon_mprotect_rw_to_rd</name>
+  <iterations>10</iterations>
+  <args>AT_ALL_PAGE_SIZES</args>
+</fn>
+<fn>
+  <name>BM_syscall_mmap_anon_mprotect_rw_to_none</name>
+  <iterations>10</iterations>
+  <args>AT_ALL_PAGE_SIZES</args>
+</fn>
+<fn>
+  <name>BM_syscall_mmap_anon_mprotect_rd_to_none</name>
+  <iterations>10</iterations>
+  <args>AT_ALL_PAGE_SIZES</args>
+</fn>
+<fn>
+  <name>BM_syscall_mmap_file_mprotect_rw_to_rd</name>
+  <iterations>10</iterations>
+  <args>AT_ALL_PAGE_SIZES</args>
+</fn>
+<fn>
+  <name>BM_syscall_mmap_file_mprotect_rw_to_none</name>
+  <iterations>10</iterations>
+  <args>AT_ALL_PAGE_SIZES</args>
+</fn>
+<fn>
+  <name>BM_syscall_mmap_file_mprotect_none_to_rw</name>
+  <iterations>10</iterations>
+  <args>AT_ALL_PAGE_SIZES</args>
+</fn>
+<fn>
+  <name>BM_syscall_mmap_file_mprotect_none_to_rd</name>
+  <iterations>10</iterations>
+  <args>AT_ALL_PAGE_SIZES</args>
+</fn>
+<fn>
+  <name>BM_syscall_mmap_file_mprotect_rd_to_none</name>
+  <iterations>10</iterations>
+  <args>AT_ALL_PAGE_SIZES</args>
+</fn>
diff --git a/benchmarks/syscall_mmap_benchmark.cpp b/benchmarks/syscall_mm_benchmark.cpp
similarity index 62%
rename from benchmarks/syscall_mmap_benchmark.cpp
rename to benchmarks/syscall_mm_benchmark.cpp
index 34ffa2e..1f22f31 100644
--- a/benchmarks/syscall_mmap_benchmark.cpp
+++ b/benchmarks/syscall_mm_benchmark.cpp
@@ -38,6 +38,12 @@
   int64_t size;
 };
 
+struct MprotectParams {
+  int initial_prot;
+  int mprotect_prot;
+  int64_t size;
+};
+
 template <BenchmarkType type>
 void MmapBenchmarkImpl(benchmark::State& state, const struct MmapParams& params, int fd,
                        void* area = nullptr) {
@@ -128,7 +134,7 @@
 
   MmapBenchmark(state, params, 0);
 }
-BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_anon_rw, "AT_All_PAGE_SIZES");
+BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_anon_rw, "AT_ALL_PAGE_SIZES");
 
 static void BM_syscall_mmap_anon_noreserve(benchmark::State& state) {
   struct MmapParams params = {
@@ -139,7 +145,7 @@
 
   MmapBenchmark(state, params, 0);
 }
-BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_anon_noreserve, "AT_All_PAGE_SIZES");
+BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_anon_noreserve, "AT_ALL_PAGE_SIZES");
 
 static void BM_syscall_mmap_anon_none(benchmark::State& state) {
   struct MmapParams params = {
@@ -150,7 +156,7 @@
 
   MmapBenchmark(state, params, 0);
 }
-BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_anon_none, "AT_All_PAGE_SIZES");
+BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_anon_none, "AT_ALL_PAGE_SIZES");
 
 // anon fixed mmap
 static void BM_syscall_mmap_anon_rw_fixed(benchmark::State& state) {
@@ -162,7 +168,7 @@
 
   MmapFixedBenchmark(state, params, -1, params.size, 0);
 }
-BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_anon_rw_fixed, "AT_All_PAGE_SIZES");
+BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_anon_rw_fixed, "AT_ALL_PAGE_SIZES");
 
 static void BM_syscall_mmap_anon_none_fixed(benchmark::State& state) {
   struct MmapParams params = {
@@ -173,7 +179,7 @@
 
   MmapFixedBenchmark(state, params, -1, params.size, 0);
 }
-BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_anon_none_fixed, "AT_All_PAGE_SIZES");
+BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_anon_none_fixed, "AT_ALL_PAGE_SIZES");
 
 // file mmap
 static void BM_syscall_mmap_file_rd_priv(benchmark::State& state) {
@@ -185,7 +191,7 @@
 
   MmapFileBenchmark(state, params, params.size, 0);
 }
-BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_file_rd_priv, "AT_All_PAGE_SIZES");
+BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_file_rd_priv, "AT_ALL_PAGE_SIZES");
 
 static void BM_syscall_mmap_file_rw_shared(benchmark::State& state) {
   struct MmapParams params = {
@@ -196,7 +202,7 @@
 
   MmapFileBenchmark(state, params, params.size, 0);
 }
-BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_file_rw_shared, "AT_All_PAGE_SIZES");
+BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_file_rw_shared, "AT_ALL_PAGE_SIZES");
 
 // file fixed mmap
 static void BM_syscall_mmap_file_rw_priv_fixed_start(benchmark::State& state) {
@@ -209,7 +215,7 @@
   // allocate 3x area and map at the start
   MmapFileBenchmark(state, params, params.size * 3, 0);
 }
-BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_file_rw_priv_fixed_start, "AT_All_PAGE_SIZES");
+BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_file_rw_priv_fixed_start, "AT_ALL_PAGE_SIZES");
 
 static void BM_syscall_mmap_file_rw_priv_fixed_mid(benchmark::State& state) {
   struct MmapParams params = {
@@ -307,3 +313,152 @@
   MadviseBenchmark(state, params, MADV_FREE);
 }
 BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_anon_madvise_free, "AT_MULTI_PAGE_SIZES");
+
+void MprotectBenchmark(benchmark::State& state, const struct MprotectParams& params, void* addr) {
+  for (auto _ : state) {
+    state.PauseTiming();
+    /*
+     * Guarantee that physical memory pages are allocated for this region to prevent
+     * segmentation fault when using mprotect to change permissions.
+     */
+    if (params.initial_prot & PROT_WRITE) {
+      MakeAllocationResident(addr, params.size, page_sz);
+    }
+    state.ResumeTiming();
+
+    if (mprotect(addr, params.size, params.mprotect_prot) != 0) {
+      state.SkipWithError(android::base::StringPrintf("mprotect failed: %m"));
+      break;
+    }
+
+    state.PauseTiming();
+    // Revert back to the original protection
+    int res = mprotect(addr, params.size, params.initial_prot);
+    state.ResumeTiming();
+    if (res != 0) {
+      state.SkipWithError(
+          android::base::StringPrintf("mprotect failed to revert to original prot: %m"));
+      break;
+    }
+  }
+}
+
+static void MprotectBenchmarkWithMmapAnon(benchmark::State& state,
+                                          const struct MprotectParams& params) {
+  void* addr = mmap(nullptr, params.size, params.initial_prot, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
+  if (addr == MAP_FAILED) {
+    state.SkipWithError(android::base::StringPrintf("mmap failed: %m"));
+    return;
+  }
+
+  MprotectBenchmark(state, params, addr);
+
+  if (munmap(addr, params.size) != 0)
+    state.SkipWithError(android::base::StringPrintf("munmap failed: %m"));
+}
+
+static void BM_syscall_mmap_anon_mprotect_rw_to_rd(benchmark::State& state) {
+  struct MprotectParams params = {
+      .initial_prot = PROT_READ | PROT_WRITE,
+      .mprotect_prot = PROT_READ,
+      .size = state.range(0),
+  };
+  MprotectBenchmarkWithMmapAnon(state, params);
+}
+BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_anon_mprotect_rw_to_rd, "AT_ALL_PAGE_SIZES");
+
+static void BM_syscall_mmap_anon_mprotect_rw_to_none(benchmark::State& state) {
+  struct MprotectParams params = {
+      .initial_prot = PROT_READ | PROT_WRITE,
+      .mprotect_prot = PROT_NONE,
+      .size = state.range(0),
+  };
+  MprotectBenchmarkWithMmapAnon(state, params);
+}
+BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_anon_mprotect_rw_to_none, "AT_ALL_PAGE_SIZES");
+
+static void BM_syscall_mmap_anon_mprotect_rd_to_none(benchmark::State& state) {
+  struct MprotectParams params = {
+      .initial_prot = PROT_READ,
+      .mprotect_prot = PROT_NONE,
+      .size = state.range(0),
+  };
+  MprotectBenchmarkWithMmapAnon(state, params);
+}
+BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_anon_mprotect_rd_to_none, "AT_ALL_PAGE_SIZES");
+
+static void MprotectBenchmarkWithMmapFile(benchmark::State& state,
+                                          const struct MprotectParams& params) {
+  TemporaryFile tf;
+
+  if (tf.fd < 0) {
+    state.SkipWithError(android::base::StringPrintf("failed to create a temporary file: %m"));
+    return;
+  }
+
+  if (params.size > 0 && ftruncate(tf.fd, params.size)) {
+    state.SkipWithError(android::base::StringPrintf("ftruncate failed: %m"));
+    return;
+  }
+
+  void* addr = mmap(nullptr, params.size, params.initial_prot, MAP_PRIVATE, tf.fd, 0);
+  if (addr == MAP_FAILED) {
+    state.SkipWithError(android::base::StringPrintf("mmap failed: %m"));
+    return;
+  }
+
+  MprotectBenchmark(state, params, addr);
+
+  if (munmap(addr, params.size) != 0)
+    state.SkipWithError(android::base::StringPrintf("munmap failed: %m"));
+}
+
+static void BM_syscall_mmap_file_mprotect_rw_to_rd(benchmark::State& state) {
+  struct MprotectParams params = {
+      .initial_prot = PROT_READ | PROT_WRITE,
+      .mprotect_prot = PROT_READ,
+      .size = state.range(0),
+  };
+  MprotectBenchmarkWithMmapFile(state, params);
+}
+BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_file_mprotect_rw_to_rd, "AT_ALL_PAGE_SIZES");
+
+static void BM_syscall_mmap_file_mprotect_rw_to_none(benchmark::State& state) {
+  struct MprotectParams params = {
+      .initial_prot = PROT_READ | PROT_WRITE,
+      .mprotect_prot = PROT_NONE,
+      .size = state.range(0),
+  };
+  MprotectBenchmarkWithMmapFile(state, params);
+}
+BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_file_mprotect_rw_to_none, "AT_ALL_PAGE_SIZES");
+
+static void BM_syscall_mmap_file_mprotect_none_to_rw(benchmark::State& state) {
+  struct MprotectParams params = {
+      .initial_prot = PROT_NONE,
+      .mprotect_prot = PROT_READ | PROT_WRITE,
+      .size = state.range(0),
+  };
+  MprotectBenchmarkWithMmapFile(state, params);
+}
+BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_file_mprotect_none_to_rw, "AT_ALL_PAGE_SIZES");
+
+static void BM_syscall_mmap_file_mprotect_none_to_rd(benchmark::State& state) {
+  struct MprotectParams params = {
+      .initial_prot = PROT_NONE,
+      .mprotect_prot = PROT_READ,
+      .size = state.range(0),
+  };
+  MprotectBenchmarkWithMmapFile(state, params);
+}
+BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_file_mprotect_none_to_rd, "AT_ALL_PAGE_SIZES");
+
+static void BM_syscall_mmap_file_mprotect_rd_to_none(benchmark::State& state) {
+  struct MprotectParams params = {
+      .initial_prot = PROT_READ,
+      .mprotect_prot = PROT_NONE,
+      .size = state.range(0),
+  };
+  MprotectBenchmarkWithMmapFile(state, params);
+}
+BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_file_mprotect_rd_to_none, "AT_ALL_PAGE_SIZES");
diff --git a/benchmarks/util.h b/benchmarks/util.h
index 99eed5f..347dc35 100644
--- a/benchmarks/util.h
+++ b/benchmarks/util.h
@@ -71,7 +71,7 @@
 
 bool LockToCPU(int cpu_to_lock);
 
-static __inline __attribute__ ((__always_inline__)) void MakeAllocationResident(
+static inline __attribute__((__always_inline__)) void MakeAllocationResident(
     void* ptr, size_t nbytes, int pagesize) {
   uint8_t* data = reinterpret_cast<uint8_t*>(ptr);
   for (size_t i = 0; i < nbytes; i += pagesize) {
diff --git a/benchmarks/wctype_benchmark.cpp b/benchmarks/wctype_benchmark.cpp
index cdf5568..cf96057 100644
--- a/benchmarks/wctype_benchmark.cpp
+++ b/benchmarks/wctype_benchmark.cpp
@@ -16,17 +16,73 @@
 
 #include <wctype.h>
 
+#include <numeric>
+#include <random>
+#include <vector>
+
 #include <benchmark/benchmark.h>
 #include "util.h"
 
-BIONIC_TRIVIAL_BENCHMARK(BM_wctype_towlower_ascii_y, towlower('X'));
-BIONIC_TRIVIAL_BENCHMARK(BM_wctype_towlower_ascii_n, towlower('x'));
+static std::vector<wint_t> RandomAscii() {
+  std::vector<wint_t> result(128);
+  std::iota(result.begin(), result.end(), 0);
+  std::shuffle(result.begin(), result.end(), std::mt19937{std::random_device{}()});
+  return result;
+}
 
-BIONIC_TRIVIAL_BENCHMARK(BM_wctype_towlower_unicode_y, towlower(0x0391));
-BIONIC_TRIVIAL_BENCHMARK(BM_wctype_towlower_unicode_n, towlower(0x03b1));
+static std::vector<wint_t> RandomNonAscii() {
+  std::vector<wint_t> result;
+  std::mt19937 rng{std::random_device{}()};
+  std::uniform_int_distribution<> d(0x80, 0xffff);
+  for (size_t i = 0; i < 128; i++) result.push_back(d(rng));
+  return result;
+}
 
-BIONIC_TRIVIAL_BENCHMARK(BM_wctype_towupper_ascii_y, towupper('x'));
-BIONIC_TRIVIAL_BENCHMARK(BM_wctype_towupper_ascii_n, towupper('X'));
+#define WCTYPE_BENCHMARK(__benchmark, fn, random_fn)            \
+  static void __benchmark##_##fn(benchmark::State& state) {     \
+    auto chars = random_fn();                                   \
+    for (auto _ : state) {                                      \
+      for (char ch : chars) {                                   \
+        benchmark::DoNotOptimize(fn(ch));                       \
+      }                                                         \
+    }                                                           \
+    state.SetBytesProcessed(state.iterations() * chars.size()); \
+  }                                                             \
+  BIONIC_BENCHMARK(__benchmark##_##fn)
 
-BIONIC_TRIVIAL_BENCHMARK(BM_wctype_towupper_unicode_y, towupper(0x03b1));
-BIONIC_TRIVIAL_BENCHMARK(BM_wctype_towupper_unicode_n, towupper(0x0391));
+#define WCTYPE_BENCHMARK_ASCII(__benchmark, fn) WCTYPE_BENCHMARK(__benchmark, fn, RandomAscii)
+
+#define WCTYPE_BENCHMARK_NON_ASCII(__benchmark, fn) \
+  WCTYPE_BENCHMARK(__benchmark, fn, RandomNonAscii)
+
+WCTYPE_BENCHMARK_ASCII(BM_wctype_ascii, iswalnum);
+WCTYPE_BENCHMARK_ASCII(BM_wctype_ascii, iswalpha);
+WCTYPE_BENCHMARK_ASCII(BM_wctype_ascii, iswblank);
+WCTYPE_BENCHMARK_ASCII(BM_wctype_ascii, iswcntrl);
+WCTYPE_BENCHMARK_ASCII(BM_wctype_ascii, iswdigit);
+WCTYPE_BENCHMARK_ASCII(BM_wctype_ascii, iswgraph);
+WCTYPE_BENCHMARK_ASCII(BM_wctype_ascii, iswlower);
+WCTYPE_BENCHMARK_ASCII(BM_wctype_ascii, iswprint);
+WCTYPE_BENCHMARK_ASCII(BM_wctype_ascii, iswpunct);
+WCTYPE_BENCHMARK_ASCII(BM_wctype_ascii, iswspace);
+WCTYPE_BENCHMARK_ASCII(BM_wctype_ascii, iswupper);
+WCTYPE_BENCHMARK_ASCII(BM_wctype_ascii, iswxdigit);
+
+WCTYPE_BENCHMARK_ASCII(BM_wctype_ascii_transform, towlower);
+WCTYPE_BENCHMARK_ASCII(BM_wctype_ascii_transform, towupper);
+
+WCTYPE_BENCHMARK_NON_ASCII(BM_wctype_non_ascii, iswalnum);
+WCTYPE_BENCHMARK_NON_ASCII(BM_wctype_non_ascii, iswalpha);
+WCTYPE_BENCHMARK_NON_ASCII(BM_wctype_non_ascii, iswblank);
+WCTYPE_BENCHMARK_NON_ASCII(BM_wctype_non_ascii, iswcntrl);
+WCTYPE_BENCHMARK_NON_ASCII(BM_wctype_non_ascii, iswdigit);
+WCTYPE_BENCHMARK_NON_ASCII(BM_wctype_non_ascii, iswgraph);
+WCTYPE_BENCHMARK_NON_ASCII(BM_wctype_non_ascii, iswlower);
+WCTYPE_BENCHMARK_NON_ASCII(BM_wctype_non_ascii, iswprint);
+WCTYPE_BENCHMARK_NON_ASCII(BM_wctype_non_ascii, iswpunct);
+WCTYPE_BENCHMARK_NON_ASCII(BM_wctype_non_ascii, iswspace);
+WCTYPE_BENCHMARK_NON_ASCII(BM_wctype_non_ascii, iswupper);
+WCTYPE_BENCHMARK_NON_ASCII(BM_wctype_non_ascii, iswxdigit);
+
+WCTYPE_BENCHMARK_NON_ASCII(BM_wctype_non_ascii_transform, towlower);
+WCTYPE_BENCHMARK_NON_ASCII(BM_wctype_non_ascii_transform, towupper);
diff --git a/docs/README.md b/docs/README.md
new file mode 100644
index 0000000..2825eac
--- /dev/null
+++ b/docs/README.md
@@ -0,0 +1,34 @@
+# bionic documentation
+
+[bionic](https://en.wikipedia.org/wiki/Bionic_(software)) is Android's
+C library, math library, and dynamic linker.
+
+## User documentation
+
+* [Android bionic status](status.md) - where we are in terms of standards,
+  and what changed with each OS release.
+* [32-bit ABI bugs](32-bit-abi.md) - historical accidents we can never fix.
+* [`EINTR`](EINTR.md) - what is the `EINTR` failure,
+  and how can code deal with it?
+* [When to use which `#define`](defines.md) - how to choose between
+  `__ANDROID__` and `__BIONIC__` and all the other options for conditional
+  compilation.
+* [fdsan](fdsan.md) - bionic's file descriptor sanitizer,
+  which detects use-after-close() bugs.
+* [fdtrack](fdtrack.md) - bionic's file descriptor tracker,
+  which helps debug file descriptor leaks.
+
+## Maintainer documentation
+
+If you're trying to make changes to bionic _itself_, start with the
+[bionic maintainer documentation](../README.md).
+
+We also have more detail on several specific parts of the implementation:
+
+* [The anatomy of bionic's `_FORTIFY_SOURCE`](clang_fortify_anatomy.md) -
+  how does `_FORTIFY_SOURCE` work on bionic (primarily "with clang").
+* [Android ELF TLS](elf-tls.md) - details of bionic's ELF TLS implementation.
+* [Validating libc assembler](libc_assembler.md) - how to test changes to
+  libc assembler routines.
+* [Validating native allocator changes](native_allocator.md) - how to test
+  changes to the native allocator.
diff --git a/docs/elf-tls.md b/docs/elf-tls.md
index d408b3f..450f362 100644
--- a/docs/elf-tls.md
+++ b/docs/elf-tls.md
@@ -1,9 +1,10 @@
-# Android ELF TLS (Draft)
+# Android ELF TLS
 
-Internal links:
- * [go/android-elf-tls](http://go/android-elf-tls)
- * [One-pager](https://docs.google.com/document/d/1leyPTnwSs24P2LGiqnU6HetnN5YnDlZkihigi6qdf_M)
- * Tracking bugs: http://b/110100012, http://b/78026329
+App developers probably just want to read the
+[quick ELS TLS status summary](../android-changes-for-ndk-developers.md#elf-tls-available-for-api-level-29)
+instead.
+
+This document covers the detailed design and implementation choices.
 
 [TOC]
 
@@ -215,7 +216,7 @@
  * https://bugzilla.redhat.com/show_bug.cgi?id=1124987
  * web search: [`"dlopen: cannot load any more object with static TLS"`][glibc-static-tls-error]
 
-Neither musl nor the Bionic TLS prototype currently allocate any surplus TLS memory.
+Neither bionic nor musl currently allocate any surplus TLS memory.
 
 In general, supporting surplus TLS memory probably requires maintaining a thread list so that
 `dlopen` can initialize the new static TLS memory in all existing threads. A thread list could be
@@ -489,19 +490,6 @@
 [quietly ignored]: https://android.googlesource.com/platform/bionic/+/android-8.1.0_r48/linker/linker.cpp#2784
 [added compatibility checks]: https://android-review.googlesource.com/c/platform/bionic/+/648760
 
-# Bionic Prototype Notes
-
-There is an [ELF TLS prototype] uploaded on Gerrit. It implements:
- * Static TLS Block allocation for static and dynamic executables
- * TLS for dynamically loaded and unloaded modules (`__tls_get_addr`)
- * TLSDESC for arm64 only
-
-Missing:
- * `dlsym` of a TLS variable
- * debugger support
-
-[ELF TLS prototype]: https://android-review.googlesource.com/q/topic:%22elf-tls-prototype%22+(status:open%20OR%20status:merged)
-
 ## Loader/libc Communication
 
 The loader exposes a list of TLS modules ([`struct TlsModules`][TlsModules]) to `libc.so` using the
@@ -515,13 +503,14 @@
 
 ## TLS Allocator
 
-The prototype currently allocates a `pthread_internal_t` object and static TLS in a single mmap'ed
+bionic currently allocates a `pthread_internal_t` object and static TLS in a single mmap'ed
 region, along with a thread's stack if it needs one allocated. It doesn't place TLS memory on a
 preallocated stack (either the main thread's stack or one provided with `pthread_attr_setstack`).
 
 The DTV and blocks for dlopen'ed modules are instead allocated using the Bionic loader's
-`LinkerMemoryAllocator`, adapted to avoid the STL and to provide `memalign`. The prototype tries to
-achieve async-signal safety by blocking signals and acquiring a lock.
+`LinkerMemoryAllocator`, adapted to avoid the STL and to provide `memalign`.
+The implementation tries to achieve async-signal safety by blocking signals and
+acquiring a lock.
 
 There are three "entry points" to dynamically locate a TLS variable's address:
  * libc.so: `__tls_get_addr`
@@ -529,10 +518,10 @@
  * loader: dlsym
 
 The loader's entry points need to call `__tls_get_addr`, which needs to allocate memory. Currently,
-the prototype uses a [special function pointer] to call libc.so's `__tls_get_addr` from the loader.
+the implementation uses a [special function pointer] to call libc.so's `__tls_get_addr` from the loader.
 (This should probably be removed.)
 
-The prototype currently allows for arbitrarily-large TLS variable alignment. IIRC, different
+The implementation currently allows for arbitrarily-large TLS variable alignment. IIRC, different
 implementations (glibc, musl, FreeBSD) vary in their level of respect for TLS alignment. It looks
 like the Bionic loader ignores segments' alignment and aligns loaded libraries to 256 KiB. See
 `ReserveAligned`.
@@ -541,7 +530,7 @@
 
 ## Async-Signal Safety
 
-The prototype's `__tls_get_addr` might be async-signal safe. Making it AS-safe is a good idea if
+The implementation's `__tls_get_addr` might be async-signal safe. Making it AS-safe is a good idea if
 it's feasible. musl's function is AS-safe, but glibc's isn't (or wasn't). Google had a patch to make
 glibc AS-safe back in 2012-2013. See:
  * https://sourceware.org/glibc/wiki/TLSandSignals
@@ -550,7 +539,7 @@
 
 ## Out-of-Memory Handling (abort)
 
-The prototype lazily allocates TLS memory for dlopen'ed modules (see `__tls_get_addr`), and an
+The implementation lazily allocates TLS memory for dlopen'ed modules (see `__tls_get_addr`), and an
 out-of-memory error on a TLS access aborts the process. musl, on the other hand, preallocates TLS
 memory on `pthread_create` and `dlopen`, so either function can return out-of-memory. Both functions
 probably need to acquire the same lock.
@@ -572,7 +561,7 @@
 
 FWIW: emutls also aborts on out-of-memory.
 
-## ELF TLS Not Usable in libc
+## ELF TLS Not Usable in libc Itself
 
 The dynamic loader currently can't use ELF TLS, so any part of libc linked into the loader (i.e.
 most of it) also can't use ELF TLS. It might be possible to lift this restriction, perhaps with
@@ -649,7 +638,7 @@
 It seems easy to fix the incompatibility for variant 2 (x86 and x86_64) by splitting out the Bionic
 slots into a new data structure. Variant 1 is a harder problem.
 
-The TLS prototype currently uses a patched LLD that uses a variant 1 TLS layout with a 16-word TCB
+The TLS prototype used a patched LLD that uses a variant 1 TLS layout with a 16-word TCB
 on all architectures.
 
 Aside: gcc's arm64ilp32 target uses a 32-bit unsigned offset for a TLS IE access
@@ -821,8 +810,8 @@
 
 ### Workaround for Go: place pthread keys after the executable's TLS
 
-Most Android executables do not use any `thread_local` variables. In the current prototype, with the
-AOSP hikey960 build, only `/system/bin/netd` has a TLS segment, and it's only 32 bytes. As long as
+Most Android executables do not use any `thread_local` variables. In the prototype, with the
+AOSP hikey960 build, only `/system/bin/netd` had a TLS segment, and it was only 32 bytes. As long as
 `/system/bin/app_process{32,64}` limits its use of TLS memory, then the pthread keys could be
 allocated after `app_process`' TLS segment, and Go will still find them.
 
@@ -847,6 +836,12 @@
  * It looks like glibc's ld.so re-relocates itself after loading a program, so a program's symbols
    can interpose call in the loader: https://sourceware.org/ml/libc-alpha/2014-01/msg00501.html
 
+## TODO: Other
+
+Missing:
+ * `dlsym` of a TLS variable
+ * debugger support
+
 # References
 
 General (and x86/x86-64)
diff --git a/docs/fdsan.md b/docs/fdsan.md
index f5d1ab5..5aeb7de 100644
--- a/docs/fdsan.md
+++ b/docs/fdsan.md
@@ -62,7 +62,9 @@
  - fatal (`ANDROID_FDSAN_ERROR_LEVEL_FATAL`)
    - Abort upon detecting an error.
 
-In Android Q, fdsan has a global default of warn-once. fdsan can be made more or less strict at runtime via the `android_fdsan_set_error_level` function in [`<android/fdsan.h>`](https://android.googlesource.com/platform/bionic/+/main/libc/include/android/fdsan.h).
+In API level 29, fdsan had a global default of warn-once.
+In API level 30 and higher, fdsan has a global default of fatal.
+fdsan can be made more or less strict at runtime via the `android_fdsan_set_error_level` function in [`<android/fdsan.h>`](https://android.googlesource.com/platform/bionic/+/main/libc/include/android/fdsan.h).
 
 The likelihood of fdsan catching a file descriptor error is proportional to the percentage of file descriptors in your process that are tagged with an owner.
 
@@ -344,7 +346,8 @@
 
     // These functions are marked with __attribute__((weak)), so that their
     // availability can be determined at runtime. These wrappers will use them
-    // if available, and fall back to no-ops or regular close on pre-Q devices.
+    // if available, and fall back to no-ops or regular close on devices older
+    // than API level 29.
     static void exchange_tag(int fd, uint64_t old_tag, uint64_t new_tag) {
         if (android_fdsan_exchange_owner_tag) {
             android_fdsan_exchange_owner_tag(fd, old_tag, new_tag);
diff --git a/docs/status.md b/docs/status.md
index a9afe55..7ebd195 100644
--- a/docs/status.md
+++ b/docs/status.md
@@ -56,7 +56,11 @@
 Current libc symbols: https://android.googlesource.com/platform/bionic/+/main/libc/libc.map.txt
 
 New libc functions in V (API level 35):
-  * `tcgetwinsize`, `tcsetwinsize` (POSIX Issue 8 additions).
+  * New `android_crash_detail_register`, `android_crash_detail_unregister`,
+    `android_crash_detail_replace_name`, and `android_crash_detail_replace_data`
+    functionality for adding arbitrary data to tombstones
+    (see `<android/crash_detail.h>` for full documentation).
+  * `tcgetwinsize`, `tcsetwinsize`, `_Fork` (POSIX Issue 8 additions).
   * `timespec_getres` (C23 addition).
   * `localtime_rz`, `mktime_z`, `tzalloc`, and `tzfree` (NetBSD
     extensions implemented in tzcode, and the "least non-standard"
@@ -121,6 +125,7 @@
   * `getloadavg` (BSD/GNU extension in <stdlib.h>)
 
 New libc behavior in Q (API level 29):
+  * Support for [ELF TLS](elf-tls.md).
   * Whole printf family now supports the GNU `%m` extension, rather than a
     special-case hack in `syslog`.
   * `popen` now always uses `O_CLOEXEC`, not just with the `e` extension.
@@ -278,23 +283,31 @@
 
 libc function count over time:
 
-| OS    | API level | Function count |
-|-------|-----------|----------------|
-| J     | 16        | 842            |
-| J MR1 | 17        | 870            |
-| J MR2 | 18        | 878            |
-| K     | 19        | 893            |
-| L     | 21        | 1118           |
-| M     | 23        | 1183           |
-| N     | 24        | 1228           |
-| O     | 26        | 1280           |
-| P     | 28        | 1378           |
-| Q     | 29        | 1394           |
+| API level | Function count |
+|-----------|----------------|
+| 16        | 842            |
+| 17        | 870            |
+| 18        | 878            |
+| 19        | 893            |
+| 21        | 1016           |
+| 22        | 1038           |
+| 23        | 1103           |
+| 24        | 1147           |
+| 25        | 1147           |
+| 26        | 1199           |
+| 27        | 1199           |
+| 28        | 1298           |
+| 29        | 1312           |
+| 30        | 1368           |
+| 31        | 1379           |
+| 32        | 1379           |
+| 33        | 1386           |
+| 34        | 1392           |
 
 Data collected by:
 ```
-ndk-r21$ for i in `ls -1v platforms/android-*/arch-arm/usr/lib/libc.so` ; do \
-  echo $i; nm $i | grep -w T | wc -l ; done
+ndk-r26c$ for i in `ls -1v toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/lib/aarch64-linux-android/*/libc.so` ; \
+  do echo $i; nm $i | grep -w T | wc -l ; done
 ```
 
 ### libm
@@ -321,17 +334,25 @@
 ## Target API level behavioral differences
 
 Most bionic bug fixes and improvements have been made without checks for
-the app's `targetSdkVersion`. As of O there were exactly two exceptions,
-but there are likely to be more in future because of Project Treble.
+the app's `targetSdkVersion`. There are a handful of exceptions. (If in
+doubt, search the source for `android_get_application_target_sdk_version()`.)
 
-### Invalid `pthread_t` handling (targetSdkVersion >= O)
+### Destroyed mutex checking (targetSdkVersion >= 28)
+
+If a destroyed `pthread_mutex_t` is passed to any of the mutex functions, apps
+targeting API level 28 or higher will see a
+"<function> called on a destroyed mutex" fortify failure. Apps targeting older
+API levels will just have the function fail with EBUSY (matching the likely
+behavior before we added the check).
+
+### Invalid `pthread_t` handling (targetSdkVersion >= 26)
 
 As part of a long-term goal to remove the global thread list,
 and in an attempt to flush out racy code, we changed how an invalid
 `pthread_t` is handled. For `pthread_detach`, `pthread_getcpuclockid`,
 `pthread_getschedparam`/`pthread_setschedparam`, `pthread_join`, and
 `pthread_kill`, instead of returning ESRCH when passed an invalid
-`pthread_t`, if you're targeting O or above, they'll abort with the
+`pthread_t`, if you're targeting API level 26 or above, they'll abort with the
 message "attempt to use invalid pthread\_t".
 
 Note that this doesn't change behavior as much as you might think: the
@@ -369,13 +390,13 @@
     the tid may have been reused, but your code is inherently unsafe without
     a redesign anyway.
 
-### Interruptable `sem_wait` (targetSdkVersion >= N)
+### Interruptable `sem_wait` (targetSdkVersion >= 24)
 
 POSIX says that `sem_wait` can be interrupted by delivery of a
 signal. This wasn't historically true in Android, and when we fixed this
 bug we found that existing code relied on the old behavior. To preserve
 compatibility, `sem_wait` can only return EINTR on Android if the app
-targets N or later.
+targets API level 24 or later.
 
 
 ## FORTIFY
@@ -385,22 +406,25 @@
 overrun is detected, the program is safely aborted as in this
 [example](https://source.android.com/devices/tech/debug/native-crash#fortify).
 
-Note that in recent releases Android's FORTIFY has been extended to
-cover other issues. It can now detect, for example, passing `O_CREAT`
-to open(2) without specifying a mode. It also performs some checking
-regardless of whether the caller was built with FORTIFY enabled. In P,
-for example, calling a `pthread_mutex_` function on a destroyed mutex,
-calling a `<dirent.h>` function on a null pointer, using `%n` with the
-printf(3) family, or using the scanf(3) `m` modifier incorrectly will
-all result in FORTIFY failures even for code not built with FORTIFY.
+Note that Android's FORTIFY has been extended to cover other issues. It can
+detect, for example, passing `O_CREAT` to open(2) without specifying a mode. It
+also performs some checking regardless of whether the caller was built with
+FORTIFY enabled. From API level 28, for example, calling a `pthread_mutex_`
+function on a destroyed mutex, calling a `<dirent.h>` function on a null
+pointer, using `%n` with the printf(3) family, or using the scanf(3) `m`
+modifier incorrectly will all result in FORTIFY failures even for code not built
+with FORTIFY.
 
 More background information is available in our
 [FORTIFY in Android](https://android-developers.googleblog.com/2017/04/fortify-in-android.html)
-blog post.
+blog post, and there's more detail about the implementation in
+[The Anatomy of Clang FORTIFY](clang_fortify_anatomy.md).
 
-The Android platform is built with `-D_FORTIFY_SOURCE=2`, but NDK users
-need to manually enable FORTIFY by setting that themselves in whatever
-build system they're using. The exact subset of FORTIFY available to
+The Android platform is built with `-D_FORTIFY_SOURCE=2`. Users of ndk-build
+or the NDK's CMake toolchain file also get this by default with NDK r21 or
+newer. Users of other build systems
+need to manually enable FORTIFY by setting `_FORTIFY_SOURCE` themselves in
+whatever build system they're using. The exact subset of FORTIFY available to
 NDK users will depend on their target ABI level, because when a FORTIFY
 check can't be guaranteed at compile-time, a call to a run-time `_chk`
 function is added.
diff --git a/libc/Android.bp b/libc/Android.bp
index 7e5e972..79b85c5 100644
--- a/libc/Android.bp
+++ b/libc/Android.bp
@@ -1,5 +1,3 @@
-// Define the common source files for all the libc instances
-// =========================================================
 package {
     default_applicable_licenses: ["bionic_libc_license"],
 }
@@ -55,7 +53,9 @@
 cc_defaults {
     name: "libc_defaults",
     defaults: ["linux_bionic_supported"],
-    cflags: libc_common_flags,
+    cflags: libc_common_flags + [
+        "-DUSE_SCUDO",
+    ],
     asflags: libc_common_flags,
     conlyflags: ["-std=gnu99"],
     cppflags: [],
@@ -87,10 +87,6 @@
     recovery_available: true,
     native_bridge_supported: true,
 
-    // lld complains about duplicate symbols in libcrt and libgcc. Suppress the
-    // warning since this is intended right now.
-    ldflags: ["-Wl,-z,muldefs"],
-
     product_variables: {
         malloc_zero_contents: {
             cflags: ["-DSCUDO_ZERO_CONTENTS"],
@@ -98,8 +94,8 @@
         malloc_pattern_fill_contents: {
             cflags: ["-DSCUDO_PATTERN_FILL_CONTENTS"],
         },
-        malloc_not_svelte: {
-            cflags: ["-DUSE_SCUDO"],
+        malloc_low_memory: {
+            cflags: ["-UUSE_SCUDO"],
         },
     },
 
@@ -112,32 +108,90 @@
     tidy_disabled_srcs: ["upstream-*/**/*.c"],
 }
 
-libc_scudo_product_variables = {
-    malloc_not_svelte: {
-        cflags: ["-DUSE_SCUDO"],
-        whole_static_libs: ["libscudo"],
-        exclude_static_libs: [
-            "libjemalloc5",
-            "libc_jemalloc_wrapper",
-        ],
+// Workaround for b/24465209.
+// We're unlikely to be able to remove this before we just
+// remove ILP32 support completely.
+// Note that we also still have `pack_relocations: false`
+// for both libc and libm, even on LP64.
+// ========================================================
+cc_defaults {
+    name: "bug_24465209_workaround",
+    target: {
+        android_arm: {
+            pack_relocations: false,
+            ldflags: ["-Wl,--hash-style=both"],
+        },
+        android_x86: {
+            pack_relocations: false,
+            ldflags: ["-Wl,--hash-style=both"],
+        },
+    },
+}
+
+// Leave the symbols in the shared library so that stack unwinders can produce
+// meaningful name resolution. This is a bit more ugly than it sounds because
+// arm32 is a bit broken.
+// ========================================================
+cc_defaults {
+    name: "keep_symbols",
+    arch: {
+        arm: {
+            // arm32 does not produce complete exidx unwind information,
+            // so keep the .debug_frame which is relatively small and does
+            // include needed unwind information.
+            // See b/132992102 for details.
+            strip: {
+                keep_symbols_and_debug_frame: true,
+            },
+        },
+        arm64: {
+            strip: {
+                keep_symbols: true,
+            },
+        },
+        riscv64: {
+            strip: {
+                keep_symbols: true,
+            },
+        },
+        x86: {
+            strip: {
+                keep_symbols: true,
+            },
+        },
+        x86_64: {
+            strip: {
+                keep_symbols: true,
+            },
+        },
     },
 }
 
 // Defaults for native allocator libs/includes to make it
 // easier to change.
-// To disable scudo for the non-svelte config remove the line:
-//     product_variables: libc_scudo_product_variables,
-// in the cc_defaults below.
 // ========================================================
 cc_defaults {
     name: "libc_native_allocator_defaults",
 
     whole_static_libs: [
-        "libjemalloc5",
-        "libc_jemalloc_wrapper",
+        "libscudo",
+    ],
+    cflags: [
+        "-DUSE_SCUDO",
     ],
     header_libs: ["gwp_asan_headers"],
-    product_variables: libc_scudo_product_variables,
+    product_variables: {
+        malloc_low_memory: {
+            cflags: ["-UUSE_SCUDO"],
+            whole_static_libs: [
+                "libjemalloc5",
+                "libc_jemalloc_wrapper",
+            ],
+            exclude_static_libs: [
+                "libscudo",
+            ],
+        },
+    },
 }
 
 // Functions not implemented by jemalloc directly, or that need to
@@ -820,8 +874,6 @@
         "bionic/dup.cpp",
         "bionic/environ.cpp",
         "bionic/error.cpp",
-        "bionic/ether_aton.c",
-        "bionic/ether_ntoa.c",
         "bionic/eventfd.cpp",
         "bionic/exec.cpp",
         "bionic/execinfo.cpp",
@@ -880,9 +932,9 @@
         "bionic/mkfifo.cpp",
         "bionic/mknod.cpp",
         "bionic/mntent.cpp",
-        "bionic/mremap.cpp",
-        "bionic/net_if.cpp",
         "bionic/netdb.cpp",
+        "bionic/net_if.cpp",
+        "bionic/netinet_ether.cpp",
         "bionic/netinet_in.cpp",
         "bionic/nl_types.cpp",
         "bionic/open.cpp",
@@ -1003,11 +1055,6 @@
         "stdio/stdio_ext.cpp",
         "stdio/vfscanf.cpp",
         "stdio/vfwscanf.cpp",
-
-        // TODO: why isn't this in a static-libc-only module?
-        // This contains a weak stub implementation of __find_icu_symbol for wctype.cpp,
-        // which will be overridden by the actual one in libc.so.
-        "bionic/icu_static.cpp",
     ],
 
     arch: {
@@ -1076,6 +1123,8 @@
                 "arch-arm64/bionic/setjmp.S",
                 "arch-arm64/bionic/syscall.S",
                 "arch-arm64/bionic/vfork.S",
+                "arch-arm64/oryon/memcpy-nt.S",
+                "arch-arm64/oryon/memset-nt.S",
             ],
         },
 
@@ -1222,9 +1271,6 @@
                 // off64_t/time64_t support on LP32.
                 "bionic/legacy_32_bit_support.cpp",
                 "bionic/time64.c",
-
-                // TODO: move to libc/bionic/legacy_32_bit_support.cpp or #if __LP64__ instead.
-                "bionic/mmap.cpp",
             ],
         },
     },
@@ -1511,6 +1557,7 @@
     srcs: [
         "bionic/gwp_asan_wrappers.cpp",
         "bionic/heap_tagging.cpp",
+        "bionic/icu_static.cpp",
         "bionic/malloc_common.cpp",
         "bionic/malloc_limit.cpp",
     ],
@@ -1531,6 +1578,8 @@
     defaults: [
         "libc_defaults",
         "libc_native_allocator_defaults",
+        "bug_24465209_workaround",
+        "keep_symbols",
     ],
     name: "libc_library_defaults",
     product_variables: {
@@ -1543,7 +1592,6 @@
         cflags: ["-DLIBC_STATIC"],
         whole_static_libs: [
             "gwp_asan",
-            "gwp_asan_crash_handler",
             "libc_init_static",
             "libc_common_static",
             "libc_unwind_static",
@@ -1553,7 +1601,6 @@
         srcs: [":libc_sources_shared"],
         whole_static_libs: [
             "gwp_asan",
-            "gwp_asan_crash_handler",
             "libc_init_dynamic",
             "libc_common_shared",
             "libunwind-exported",
@@ -1568,14 +1615,6 @@
     // Do not pack libc.so relocations; see http://b/20645321 for details.
     pack_relocations: false,
 
-    // WARNING: The only libraries libc.so should depend on are libdl.so and ld-android.so!
-    // If you add other libraries, make sure to add -Wl,--exclude-libs=libgcc.a to the
-    // LOCAL_LDFLAGS for those libraries.  This ensures that symbols that are pulled into
-    // those new libraries from libgcc.a are not declared external; if that were the case,
-    // then libc would not pull those symbols from libgcc.a as it should, instead relying
-    // on the external symbols from the dependent libraries.  That would create a "cloaked"
-    // dependency on libgcc.a in libc though the libraries, which is not what you wanted!
-
     shared_libs: [
         "ld-android",
         "libdl",
@@ -1588,15 +1627,6 @@
 
     arch: {
         arm: {
-            // TODO: This is to work around b/24465209. Remove after root cause is fixed.
-            pack_relocations: false,
-            ldflags: [
-                "-Wl,--hash-style=both",
-                // Since we are preserving the debug_frame, do not compress
-                // in this case to make unwinds as fast as possible.
-                "-Wl,--compress-debug-sections=none",
-            ],
-
             version_script: ":libc.arm.map",
             no_libcrt: true,
 
@@ -1604,63 +1634,33 @@
                 srcs: [":libc_sources_shared_arm"],
                 // special for arm
                 cflags: ["-DCRT_LEGACY_WORKAROUND"],
-                // For backwards-compatibility, some arm32 builtins are exported from libc.so.
+                // For backwards compatibility, some arm32 builtins are exported from libc.so.
                 static_libs: ["libclang_rt.builtins-exported"],
             },
 
-            // Arm 32 bit does not produce complete exidx unwind information
-            // so keep the .debug_frame which is relatively small and does
-            // include needed unwind information.
-            // See b/132992102 for details.
-            strip: {
-                keep_symbols_and_debug_frame: true,
-            },
+            ldflags: [
+                // Since we preserve the debug_frame for libc, do not compress
+                // in this case to make unwinds as fast as possible.
+                "-Wl,--compress-debug-sections=none",
+            ],
         },
         arm64: {
             version_script: ":libc.arm64.map",
-
-            // Leave the symbols in the shared library so that stack unwinders can produce
-            // meaningful name resolution.
-            strip: {
-                keep_symbols: true,
-            },
         },
         riscv64: {
             version_script: ":libc.riscv64.map",
-
-            // Leave the symbols in the shared library so that stack unwinders can produce
-            // meaningful name resolution.
-            strip: {
-                keep_symbols: true,
-            },
         },
         x86: {
-            // TODO: This is to work around b/24465209. Remove after root cause is fixed.
-            pack_relocations: false,
-            ldflags: ["-Wl,--hash-style=both"],
-
             version_script: ":libc.x86.map",
             no_libcrt: true,
 
             shared: {
-                // For backwards-compatibility, some x86 builtins are exported from libc.so.
+                // For backwards compatibility, some x86 builtins are exported from libc.so.
                 static_libs: ["libclang_rt.builtins-exported"],
             },
-
-            // Leave the symbols in the shared library so that stack unwinders can produce
-            // meaningful name resolution.
-            strip: {
-                keep_symbols: true,
-            },
         },
         x86_64: {
             version_script: ":libc.x86_64.map",
-
-            // Leave the symbols in the shared library so that stack unwinders can produce
-            // meaningful name resolution.
-            strip: {
-                keep_symbols: true,
-            },
         },
     },
 
@@ -1918,7 +1918,10 @@
 // ========================================================
 
 cc_library {
-    defaults: ["libc_defaults"],
+    defaults: [
+        "libc_defaults",
+        "bug_24465209_workaround",
+    ],
     include_dirs: ["bionic/libstdc++/include"],
     srcs: [
         "bionic/__cxa_guard.cpp",
@@ -1943,12 +1946,8 @@
         },
     },
 
-    //TODO (dimitry): This is to work around b/24465209. Remove after root cause is fixed
     arch: {
         arm: {
-            // TODO: This is to work around b/24465209. Remove after root cause is fixed.
-            pack_relocations: false,
-            ldflags: ["-Wl,--hash-style=both"],
             version_script: ":libstdc++.arm.map",
         },
         arm64: {
@@ -1958,8 +1957,6 @@
             version_script: ":libstdc++.riscv64.map",
         },
         x86: {
-            pack_relocations: false,
-            ldflags: ["-Wl,--hash-style=both"],
             version_script: ":libstdc++.x86.map",
         },
         x86_64: {
@@ -2062,11 +2059,10 @@
 
 cc_object {
     name: "crtbrand",
-    // crtbrand.c needs <stdint.h> and a #define for the platform SDK version.
     local_include_dirs: [
-        "include",
         "private", // crtbrand.S depends on private/bionic_asm_note.h
     ],
+    // crtbrand.S needs to know the platform SDK version.
     product_variables: {
         platform_sdk_version: {
             asflags: ["-DPLATFORM_SDK_VERSION=%d"],
@@ -2093,7 +2089,6 @@
 cc_object {
     name: "crtend_so",
     local_include_dirs: [
-        "include",
         "private", // crtend_so.S depends on private/bionic_asm_arm64.h
     ],
     srcs: ["arch-common/bionic/crtend_so.S"],
@@ -2147,7 +2142,6 @@
     // name clash between gcc and bionic.
     name: "crtend_android",
     local_include_dirs: [
-        "include",
         "private", // crtend.S depends on private/bionic_asm_arm64.h
     ],
     srcs: ["arch-common/bionic/crtend.S"],
@@ -2158,7 +2152,6 @@
 cc_object {
     name: "crt_pad_segment",
     local_include_dirs: [
-        "include",
         "private", // crt_pad_segment.S depends on private/bionic_asm_note.h
     ],
     srcs: ["arch-common/bionic/crt_pad_segment.S"],
@@ -2233,7 +2226,7 @@
     nocrt: true,
     stl: "none",
     visibility: [
-        "//packages/modules/Virtualization/vmbase",
+        "//packages/modules/Virtualization/libs/libvmbase",
     ],
 }
 
@@ -2993,3 +2986,8 @@
     name: "versioner-dependencies",
     srcs: ["versioner-dependencies/**/*"],
 }
+
+filegroup {
+    name: "linux_capability_header",
+    srcs: ["kernel/uapi/linux/capability.h"],
+}
diff --git a/libc/NOTICE b/libc/NOTICE
index b6fa19b..1a84d3c 100644
--- a/libc/NOTICE
+++ b/libc/NOTICE
@@ -2105,38 +2105,6 @@
 
 Copyright (c) 1990, 1993
    The Regents of the University of California.  All rights reserved.
-
-This code is derived from software contributed to Berkeley by
-Mike Hibler and Chris Torek.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-3. Neither the name of the University nor the names of its contributors
-   may be used to endorse or promote products derived from this software
-   without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGE.
-
--------------------------------------------------------------------
-
-Copyright (c) 1990, 1993
-   The Regents of the University of California.  All rights reserved.
 (c) UNIX System Laboratories, Inc.
 All or some portions of this file are derived from material licensed
 to the University of California by American Telephone and Telegraph
@@ -2492,77 +2460,6 @@
 
 -------------------------------------------------------------------
 
-Copyright (c) 1992, 1993, 1994 Henry Spencer.
-Copyright (c) 1992, 1993, 1994
-   The Regents of the University of California.  All rights reserved.
-
-Copyright (c) 2011 The FreeBSD Foundation
-All rights reserved.
-Portions of this software were developed by David Chisnall
-under sponsorship from the FreeBSD Foundation.
-
-This code is derived from software contributed to Berkeley by
-Henry Spencer.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-3. Neither the name of the University nor the names of its contributors
-   may be used to endorse or promote products derived from this software
-   without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGE.
-
--------------------------------------------------------------------
-
-Copyright (c) 1992, 1993, 1994 Henry Spencer.
-Copyright (c) 1992, 1993, 1994
-   The Regents of the University of California.  All rights reserved.
-
-This code is derived from software contributed to Berkeley by
-Henry Spencer.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-3. Neither the name of the University nor the names of its contributors
-   may be used to endorse or promote products derived from this software
-   without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGE.
-
--------------------------------------------------------------------
-
 Copyright (c) 1993
    The Regents of the University of California.  All rights reserved.
 
@@ -2971,40 +2868,6 @@
 
 -------------------------------------------------------------------
 
-Copyright (c) 1998 Softweyr LLC.  All rights reserved.
-
-strtok_r, from Berkeley strtok
-Oct 13, 1998 by Wes Peters <wes@softweyr.com>
-
-Copyright (c) 1988, 1993
-   The Regents of the University of California.  All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notices, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notices, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-3. Neither the name of the University nor the names of its contributors
-   may be used to endorse or promote products derived from this software
-   without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY SOFTWEYR LLC, THE REGENTS AND CONTRIBUTORS
-``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
-PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL SOFTWEYR LLC, THE
-REGENTS, OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
-TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
--------------------------------------------------------------------
-
 Copyright (c) 1998 The NetBSD Foundation, Inc.
 All rights reserved.
 
@@ -3041,33 +2904,6 @@
 
 -------------------------------------------------------------------
 
-Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-3. The name of the author may not be used to endorse or promote products
-   derived from this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
-INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
-AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
-THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
-OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
-WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
-OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
--------------------------------------------------------------------
-
 Copyright (c) 1998, 2015 Todd C. Miller <millert@openbsd.org>
 
 Permission to use, copy, modify, and distribute this software for any
@@ -3084,37 +2920,6 @@
 
 -------------------------------------------------------------------
 
-Copyright (c) 1999
-   David E. O'Brien
-Copyright (c) 1988, 1993
-   The Regents of the University of California.  All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-3. Neither the name of the University nor the names of its contributors
-   may be used to endorse or promote products derived from this software
-   without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGE.
-
--------------------------------------------------------------------
-
 Copyright (c) 2000 Ben Harris.
 Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
 All rights reserved.
@@ -3264,63 +3069,6 @@
 
 -------------------------------------------------------------------
 
-Copyright (c) 2002 Tim J. Robbins
-All rights reserved.
-
-Copyright (c) 2011 The FreeBSD Foundation
-
-Portions of this software were developed by David Chisnall
-under sponsorship from the FreeBSD Foundation.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGE.
-
--------------------------------------------------------------------
-
-Copyright (c) 2002 Tim J. Robbins
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGE.
-
--------------------------------------------------------------------
-
 Copyright (c) 2002 Tim J. Robbins.
 All rights reserved.
 
@@ -3774,32 +3522,6 @@
 
 -------------------------------------------------------------------
 
-Copyright (c) 2005 Tim J. Robbins.
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGE.
-
--------------------------------------------------------------------
-
 Copyright (c) 2005 by Internet Systems Consortium, Inc. ("ISC")
 Copyright (c) 1995-1999 by Internet Software Consortium
 
@@ -3984,32 +3706,6 @@
 
 -------------------------------------------------------------------
 
-Copyright (c) 2009 David Schultz <das@FreeBSD.org>
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGE.
-
--------------------------------------------------------------------
-
 Copyright (c) 2009 The NetBSD Foundation, Inc.
 
 This code is derived from software contributed to The NetBSD Foundation
@@ -4139,32 +3835,6 @@
 
 -------------------------------------------------------------------
 
-Copyright (c) 2011 David Chisnall
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGE.
-
--------------------------------------------------------------------
-
 Copyright (c) 2011 Ed Schouten <ed@FreeBSD.org>
                    David Chisnall <theraven@FreeBSD.org>
 All rights reserved.
@@ -4354,6 +4024,33 @@
 
 -------------------------------------------------------------------
 
+Copyright (c) 2012, Linaro Limited
+   All rights reserved.
+   Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved.
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions are met:
+       * Redistributions of source code must retain the above copyright
+         notice, this list of conditions and the following disclaimer.
+       * Redistributions in binary form must reproduce the above copyright
+         notice, this list of conditions and the following disclaimer in the
+         documentation and/or other materials provided with the distribution.
+       * Neither the name of the Linaro nor the
+         names of its contributors may be used to endorse or promote products
+         derived from this software without specific prior written permission.
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+   HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
 Copyright (c) 2012-2014 ARM Ltd
 All rights reserved.
 
@@ -4539,34 +4236,6 @@
 
 -------------------------------------------------------------------
 
-Copyright (c) 2017, 2018 Dell EMC
-Copyright (c) 2000, 2001, 2008, 2011, David E. O'Brien
-Copyright (c) 1998 John D. Polstra.
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGE.
-
--------------------------------------------------------------------
-
 Copyright (c) 2023 SiFive, Inc.
 All rights reserved.
 
@@ -4824,6 +4493,539 @@
 
 -------------------------------------------------------------------
 
+SPDX-License-Identifier: BSD-2-Clause
+
+Copyright (c) 2002 Tim J. Robbins
+All rights reserved.
+
+Copyright (c) 2011 The FreeBSD Foundation
+
+Portions of this software were developed by David Chisnall
+under sponsorship from the FreeBSD Foundation.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-2-Clause
+
+Copyright (c) 2002 Tim J. Robbins
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-2-Clause
+
+Copyright (c) 2005 Tim J. Robbins.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-2-Clause
+
+Copyright (c) 2009 David Schultz <das@FreeBSD.org>
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-2-Clause
+
+Copyright (c) 2011 David Chisnall
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-2-Clause
+
+Copyright (c) 2015 Nuxi, https://nuxi.nl/
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-2-Clause
+
+Copyright (c) 2017, 2018 Dell EMC
+Copyright (c) 2000, 2001, 2008, 2011, David E. O'Brien
+Copyright (c) 1998 John D. Polstra.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-2-Clause
+
+Copyright (c)1999 Citrus Project,
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-3-Clause
+
+Copyright (c) 1989, 1993
+   The Regents of the University of California.  All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. Neither the name of the University nor the names of its contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-3-Clause
+
+Copyright (c) 1990, 1993
+   The Regents of the University of California.  All rights reserved.
+
+This code is derived from software contributed to Berkeley by
+Chris Torek.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. Neither the name of the University nor the names of its contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-3-Clause
+
+Copyright (c) 1990, 1993
+   The Regents of the University of California.  All rights reserved.
+
+This code is derived from software contributed to Berkeley by
+Mike Hibler and Chris Torek.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. Neither the name of the University nor the names of its contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-3-Clause
+
+Copyright (c) 1992, 1993
+   The Regents of the University of California.  All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. Neither the name of the University nor the names of its contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-3-Clause
+
+Copyright (c) 1992, 1993, 1994 Henry Spencer.
+Copyright (c) 1992, 1993, 1994
+   The Regents of the University of California.  All rights reserved.
+
+Copyright (c) 2011 The FreeBSD Foundation
+All rights reserved.
+Portions of this software were developed by David Chisnall
+under sponsorship from the FreeBSD Foundation.
+
+This code is derived from software contributed to Berkeley by
+Henry Spencer.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. Neither the name of the University nor the names of its contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-3-Clause
+
+Copyright (c) 1992, 1993, 1994 Henry Spencer.
+Copyright (c) 1992, 1993, 1994
+   The Regents of the University of California.  All rights reserved.
+
+This code is derived from software contributed to Berkeley by
+Henry Spencer.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. Neither the name of the University nor the names of its contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-3-Clause
+
+Copyright (c) 1998 Softweyr LLC.  All rights reserved.
+
+strtok_r, from Berkeley strtok
+Oct 13, 1998 by Wes Peters <wes@softweyr.com>
+
+Copyright (c) 1988, 1993
+   The Regents of the University of California.  All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notices, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notices, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. Neither the name of the University nor the names of its contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY SOFTWEYR LLC, THE REGENTS AND CONTRIBUTORS
+``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL SOFTWEYR LLC, THE
+REGENTS, OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-3-Clause
+
+Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. The name of the author may not be used to endorse or promote products
+   derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
+THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-3-Clause
+
+Copyright (c) 1999
+   David E. O'Brien
+Copyright (c) 1988, 1993
+   The Regents of the University of California.  All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. Neither the name of the University nor the names of its contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
 The author of this software is David M. Gay.
 
 Copyright (C) 1998 by Lucent Technologies
@@ -4980,3 +5182,11 @@
 
 -------------------------------------------------------------------
 
+memcpy - copy memory area
+
+Copyright (c) 2012-2022, Arm Limited.
+Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved.
+SPDX-License-Identifier: MIT OR Apache-2.0 WITH LLVM-exception
+
+-------------------------------------------------------------------
+
diff --git a/libc/SECCOMP_ALLOWLIST_APP.TXT b/libc/SECCOMP_ALLOWLIST_APP.TXT
index 7e1ecde..80b15b2 100644
--- a/libc/SECCOMP_ALLOWLIST_APP.TXT
+++ b/libc/SECCOMP_ALLOWLIST_APP.TXT
@@ -4,36 +4,36 @@
 # This file is processed by a python script named genseccomp.py.
 
 # Needed for debugging 32-bit Chrome
-int	pipe:pipe(int pipefd[2])	lp32
+int	pipe(int pipefd[2])	lp32
 
 # b/34651972
-int	access:access(const char *pathname, int mode)	lp32
-int	stat64:stat64(const char*, struct stat64*)	lp32
+int	access(const char *pathname, int mode)	lp32
+int	stat64(const char*, struct stat64*)	lp32
 
 # b/34813887
-int	open:open(const char *path, int oflag, ... ) lp32,x86_64
-int	getdents:getdents(unsigned int fd, struct linux_dirent *dirp, unsigned int count) lp32,x86_64
+int	open(const char *path, int oflag, ... ) lp32,x86_64
+int	getdents(unsigned int fd, struct linux_dirent *dirp, unsigned int count) lp32,x86_64
 
 # b/34719286
-int	eventfd:eventfd(unsigned int initval, int flags)	lp32
+int	eventfd(unsigned int initval, int flags)	lp32
 
 # b/34817266
-int	epoll_wait:epoll_wait(int epfd, struct epoll_event *events, int maxevents, int timeout)	lp32
+int	epoll_wait(int epfd, struct epoll_event *events, int maxevents, int timeout)	lp32
 
 # b/34908783
-int	epoll_create:epoll_create(int size)	lp32
+int	epoll_create(int size)	lp32
 
 # b/34979910
-int	creat:creat(const char *pathname, mode_t mode)	lp32
-int	unlink:unlink(const char *pathname)	lp32
+int	creat(const char *pathname, mode_t mode)	lp32
+int	unlink(const char *pathname)	lp32
 
 # b/35059702
-int	lstat64:lstat64(const char*, struct stat64*)	lp32
+int	lstat64(const char*, struct stat64*)	lp32
 
 # b/35217603
-int	fcntl:fcntl(int fd, int cmd, ... /* arg */ )	lp32
-pid_t	fork:fork()	lp32
-int	poll:poll(struct pollfd *fds, nfds_t nfds, int timeout)	lp32
+int	fcntl(int fd, int cmd, ... /* arg */ )	lp32
+pid_t	fork()	lp32
+int	poll(struct pollfd *fds, nfds_t nfds, int timeout)	lp32
 
 # b/35906875
 int	inotify_init()	lp32
diff --git a/libc/SECCOMP_BLOCKLIST_APP.TXT b/libc/SECCOMP_BLOCKLIST_APP.TXT
index 049d577..b9ecc02 100644
--- a/libc/SECCOMP_BLOCKLIST_APP.TXT
+++ b/libc/SECCOMP_BLOCKLIST_APP.TXT
@@ -6,40 +6,39 @@
 #
 # This file is processed by a python script named genseccomp.py.
 
-# Note: Some privileged syscalls are still needed in app process after fork before uid change,
-# including capset and setresuid. This is because the seccomp filter must be installed while
-# the process still has CAP_SYS_ADMIN; changing the uid would remove that capability.
-
-# syscalls to modify IDs
-int     setgid:setgid32(gid_t)     lp32
-int     setgid:setgid(gid_t)       lp64
-int     setuid:setuid32(uid_t)    lp32
-int     setuid:setuid(uid_t)      lp64
-int     setregid:setregid32(gid_t, gid_t)  lp32
-int     setregid:setregid(gid_t, gid_t)    lp64
-int     setreuid:setreuid32(uid_t, uid_t)   lp32
-int     setreuid:setreuid(uid_t, uid_t)     lp64
-int     setresgid:setresgid32(gid_t, gid_t, gid_t)   lp32
-int     setresgid:setresgid(gid_t, gid_t, gid_t)     lp64
+# Syscalls to modify IDs.
+# Note: Some privileged syscalls are still needed in app_process after fork but
+# before uid change, including capset and setresuid. This is because the seccomp
+# filter must be installed while the process still has CAP_SYS_ADMIN; changing
+# the uid would remove that capability.
+int     setgid32(gid_t)     lp32
+int     setgid(gid_t)       lp64
+int     setuid32(uid_t)    lp32
+int     setuid(uid_t)      lp64
+int     setregid32(gid_t, gid_t)  lp32
+int     setregid(gid_t, gid_t)    lp64
+int     setreuid32(uid_t, uid_t)   lp32
+int     setreuid(uid_t, uid_t)     lp64
+int     setresgid32(gid_t, gid_t, gid_t)   lp32
+int     setresgid(gid_t, gid_t, gid_t)     lp64
 # setresuid is explicitly allowed, see above.
-int     setfsgid:setfsgid32(gid_t) lp32
-int     setfsgid:setfsgid(gid_t)   lp64
-int     setfsuid:setfsuid32(uid_t) lp32
-int     setfsuid:setfsuid(uid_t)   lp64
-int     setgroups:setgroups32(int, const gid_t*)   lp32
-int     setgroups:setgroups(int, const gid_t*)     lp64
+int     setfsgid32(gid_t) lp32
+int     setfsgid(gid_t)   lp64
+int     setfsuid32(uid_t) lp32
+int     setfsuid(uid_t)   lp64
+int     setgroups32(int, const gid_t*)   lp32
+int     setgroups(int, const gid_t*)     lp64
 
-# syscalls to modify times
+# Syscalls to modify times.
 int     adjtimex(struct timex*)   all
 int     clock_adjtime(clockid_t, struct timex*)   all
 int     clock_settime(clockid_t, const struct timespec*)  all
 int     settimeofday(const struct timeval*, const struct timezone*)   all
 
 int     acct(const char*  filepath)  all
-int     klogctl:syslog(int, char*, int)   all
+int     syslog(int, char*, int)   all
 int     chroot(const char*)  all
 
-# syscalls to change machine various configurations
 int     init_module(void*, unsigned long, const char*)  all
 int     delete_module(const char*, unsigned int)   all
 int     mount(const char*, const char*, const char*, unsigned long, const void*)  all
@@ -48,4 +47,4 @@
 int     swapoff(const char*) all
 int     setdomainname(const char*, size_t)  all
 int     sethostname(const char*, size_t)  all
-int     __reboot:reboot(int, int, int, void*)  all
+int     reboot(int, int, int, void*)  all
diff --git a/libc/SYSCALLS.TXT b/libc/SYSCALLS.TXT
index 0db5d79..182de17 100644
--- a/libc/SYSCALLS.TXT
+++ b/libc/SYSCALLS.TXT
@@ -65,7 +65,7 @@
 int tgkill(pid_t tgid, pid_t tid, int sig) all
 
 void* __brk:brk(void*) all
-int __execve:execve(const char*, char* const*, char* const*)  all
+int execve(const char*, char* const*, char* const*)  all
 int __ptrace:ptrace(int request, int pid, void* addr, void* data) all
 
 # <sys/resource.h>
@@ -118,7 +118,6 @@
 pid_t       __getpid:getpid()  all
 int memfd_create(const char*, unsigned) all
 int         munmap(void*, size_t)  all
-void*       __mremap:mremap(void*, size_t, size_t, int, void*)  all
 int         msync(const void*, size_t, int)    all
 int         mprotect(const void*, size_t, int)  all
 int         madvise(void*, size_t, int)  all
@@ -174,20 +173,25 @@
 off_t lseek(int, off_t, int) lp32
 int __llseek:_llseek(int, unsigned long, unsigned long, off64_t*, int) lp32
 off_t lseek|lseek64(int, off_t, int) lp64
-int ftruncate64(int, off64_t) lp32
-int ftruncate|ftruncate64(int, off_t) lp64
 ssize_t sendfile(int out_fd, int in_fd, off_t* offset, size_t count) lp32
 ssize_t sendfile64(int out_fd, int in_fd, off64_t* offset, size_t count) lp32
 ssize_t sendfile|sendfile64(int out_fd, int in_fd, off_t* offset, size_t count) lp64
 int truncate(const char*, off_t) lp32
 int truncate64(const char*, off64_t) lp32
 int truncate|truncate64(const char*, off_t) lp64
-# (mmap only gets two lines because we only used the 64-bit variant on 32-bit systems.)
-void* __mmap2:mmap2(void*, size_t, int, int, int, long)   lp32
-void* mmap|mmap64(void*, size_t, int, int, int, off_t)  lp64
 # (fallocate only gets two lines because there is no 32-bit variant.)
 int fallocate64:fallocate(int, int, off64_t, off64_t) lp32
 int fallocate|fallocate64(int, int, off_t, off_t) lp64
+# (ftruncate only gets two lines because 32-bit bionic only uses the 64-bit call.)
+int ftruncate64(int, off64_t) lp32
+int ftruncate|ftruncate64(int, off_t) lp64
+# (mmap only gets two lines because 32-bit bionic only uses the 64-bit call.)
+void* __mmap2:mmap2(void*, size_t, int, int, int, long) lp32
+void* mmap|mmap64(void*, size_t, int, int, int, off_t) lp64
+
+# mremap is in C++ for 32-bit so we can add the PTRDIFF_MAX check.
+void* __mremap:mremap(void*, size_t, size_t, int, void*) lp32
+void* mremap(void*, size_t, size_t, int, void*) lp64
 
 # posix_fadvise64 is awkward: arm has shuffled arguments,
 # the POSIX functions don't set errno, and no architecture has posix_fadvise.
@@ -326,7 +330,7 @@
 
 int __eventfd:eventfd2(unsigned int, int)  all
 
-void __exit_group:exit_group(int)  all
+void _exit|_Exit:exit_group(int)  all
 void __exit:exit(int)  all
 
 int inotify_init1(int)  all
diff --git a/libc/arch-arm64/bionic/__bionic_clone.S b/libc/arch-arm64/bionic/__bionic_clone.S
index e9932ad..581b47a 100644
--- a/libc/arch-arm64/bionic/__bionic_clone.S
+++ b/libc/arch-arm64/bionic/__bionic_clone.S
@@ -39,7 +39,7 @@
     svc     #0
 
     # Are we the child?
-    cbz     x0, .L_bc_child
+    cbz     x0, L(child)
 
     # Set errno if something went wrong.
     cmn     x0, #(MAX_ERRNO + 1)
@@ -48,7 +48,7 @@
 
     ret
 
-.L_bc_child:
+L(child):
     # We're in the child now. Set the end of the frame record chain.
     mov     x29, #0
     # Setting x30 to 0 will make the unwinder stop at __start_thread.
diff --git a/libc/arch-arm64/bionic/setjmp.S b/libc/arch-arm64/bionic/setjmp.S
index 178c4c8..c408998 100644
--- a/libc/arch-arm64/bionic/setjmp.S
+++ b/libc/arch-arm64/bionic/setjmp.S
@@ -201,6 +201,7 @@
   bic x2, x2, #1
   ldr x0, [x0, #(_JB_X30_SP  * 8 + 8)]
   eor x0, x0, x2
+  add x1, sp, #16
   bl memtag_handle_longjmp
 
   mov x1, x19 // Restore 'value'.
diff --git a/libc/arch-arm64/bionic/vfork.S b/libc/arch-arm64/bionic/vfork.S
index addb775..26ac255 100644
--- a/libc/arch-arm64/bionic/vfork.S
+++ b/libc/arch-arm64/bionic/vfork.S
@@ -28,7 +28,6 @@
 
 #include <platform/bionic/tls_defines.h>
 #include <private/bionic_asm.h>
-#include <private/bionic_asm_offsets.h>
 #include <asm/signal.h>
 #include <linux/sched.h>
 
@@ -58,8 +57,8 @@
     // [1] https://cs.android.com/android/platform/superproject/+/master:system/extras/simpleperf/app_api/cpp/simpleperf.cpp;drc=788fa4183441f4977ddbd5a055e42a7fe7691d21;l=308
 #if !__has_feature(hwaddress_sanitizer)
     // if (!__libc_globals->memtag_stack) x0 |= CLONE_VM | CLONE_VFORK;
-    adrp    x1, __libc_globals + OFFSETOF_libc_globals_memtag_stack
-    ldrb    w1, [x1, :lo12:__libc_globals + OFFSETOF_libc_globals_memtag_stack]
+    adrp    x1, __libc_memtag_stack
+    ldrb    w1, [x1, :lo12:__libc_memtag_stack]
     cbnz    w1, 1f
     orr     x0, x0, #CLONE_VM
     orr     x0, x0, #CLONE_VFORK
@@ -73,7 +72,7 @@
     mov     x8, __NR_clone
     svc     #0
 
-    cbz     x0, .L_exit
+    cbz     x0, L(done)
 
     // rc != 0: reset cached_pid_ and vforked_.
     str     w10, [x9, #20]
@@ -81,7 +80,7 @@
     cneg    x0, x0, hi
     b.hi    __set_errno_internal
 
-.L_exit:
+L(done):
     ret
 END(vfork)
 
diff --git a/libc/arch-arm64/dynamic_function_dispatch.cpp b/libc/arch-arm64/dynamic_function_dispatch.cpp
index b9f657b..f9e4263 100644
--- a/libc/arch-arm64/dynamic_function_dispatch.cpp
+++ b/libc/arch-arm64/dynamic_function_dispatch.cpp
@@ -30,6 +30,23 @@
 #include <stddef.h>
 #include <sys/auxv.h>
 
+static inline bool __bionic_is_oryon(unsigned long hwcap) {
+    if (!(hwcap & HWCAP_CPUID)) return false;
+
+    // Extract the implementor and variant bits from MIDR_EL1.
+    // https://www.kernel.org/doc/html/latest/arch/arm64/cpu-feature-registers.html#list-of-registers-with-visible-features
+    unsigned long midr;
+    __asm__ __volatile__("mrs %0, MIDR_EL1" : "=r"(midr));
+    uint16_t cpu = (midr >> 20) & 0xfff;
+
+    auto make_cpu = [](unsigned implementor, unsigned variant) {
+        return (implementor << 4) | variant;
+    };
+
+    // Check for implementor Qualcomm's variants 0x1..0x5 (Oryon).
+    return cpu >= make_cpu('Q', 0x1) && cpu <= make_cpu('Q', 0x5);
+}
+
 extern "C" {
 
 typedef void* memchr_func(const void*, int, size_t);
@@ -49,7 +66,11 @@
 
 typedef void* memcpy_func(void*, const void*, size_t);
 DEFINE_IFUNC_FOR(memcpy) {
-    if (arg->_hwcap & HWCAP_ASIMD) {
+    if (arg->_hwcap2 & HWCAP2_MOPS) {
+        RETURN_FUNC(memcpy_func, __memmove_aarch64_mops);
+    } else if (__bionic_is_oryon(arg->_hwcap)) {
+        RETURN_FUNC(memcpy_func, __memcpy_aarch64_nt);
+    } else if (arg->_hwcap & HWCAP_ASIMD) {
         RETURN_FUNC(memcpy_func, __memcpy_aarch64_simd);
     } else {
         RETURN_FUNC(memcpy_func, __memcpy_aarch64);
@@ -58,10 +79,30 @@
 
 typedef void* memmove_func(void*, const void*, size_t);
 DEFINE_IFUNC_FOR(memmove) {
-    if (arg->_hwcap & HWCAP_ASIMD) {
-        RETURN_FUNC(memmove_func, __memmove_aarch64_simd);
+  if (arg->_hwcap2 & HWCAP2_MOPS) {
+    RETURN_FUNC(memmove_func, __memmove_aarch64_mops);
+  } else if (__bionic_is_oryon(arg->_hwcap)) {
+    RETURN_FUNC(memcpy_func, __memmove_aarch64_nt);
+  } else if (arg->_hwcap & HWCAP_ASIMD) {
+    RETURN_FUNC(memmove_func, __memmove_aarch64_simd);
+  } else {
+    RETURN_FUNC(memmove_func, __memmove_aarch64);
+  }
+}
+
+typedef int memrchr_func(const void*, int, size_t);
+DEFINE_IFUNC_FOR(memrchr) {
+    RETURN_FUNC(memrchr_func, __memrchr_aarch64);
+}
+
+typedef int memset_func(void*, int, size_t);
+DEFINE_IFUNC_FOR(memset) {
+    if (arg->_hwcap2 & HWCAP2_MOPS) {
+        RETURN_FUNC(memset_func, __memset_aarch64_mops);
+    } else if (__bionic_is_oryon(arg->_hwcap)) {
+        RETURN_FUNC(memset_func, __memset_aarch64_nt);
     } else {
-        RETURN_FUNC(memmove_func, __memmove_aarch64);
+        RETURN_FUNC(memset_func, __memset_aarch64);
     }
 }
 
diff --git a/libc/arch-arm64/oryon/memcpy-nt.S b/libc/arch-arm64/oryon/memcpy-nt.S
new file mode 100644
index 0000000..46f1541
--- /dev/null
+++ b/libc/arch-arm64/oryon/memcpy-nt.S
@@ -0,0 +1,351 @@
+/*
+ * memcpy - copy memory area
+ *
+ * Copyright (c) 2012-2022, Arm Limited.
+ * Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ * SPDX-License-Identifier: MIT OR Apache-2.0 WITH LLVM-exception
+ */
+
+/* Assumptions:
+ *
+ * ARMv8-a, AArch64, unaligned accesses.
+ *
+ */
+
+#include <private/bionic_asm.h>
+
+#define dstin     x0
+#define src       x1
+#define count     x2
+#define dst       x3
+#define srcend    x4
+#define dstend    x5
+#define A_l       x6
+#define A_lw      w6
+#define A_h       x7
+#define B_l       x8
+#define B_lw      w8
+#define B_h       x9
+#define C_l       x10
+#define C_lw      w10
+#define C_h       x11
+#define D_l       x12
+#define D_h       x13
+#define E_l       x14
+#define E_h       x15
+#define F_l       x16
+#define F_h       x17
+#define G_l       count
+#define G_h       dst
+#define H_l       src
+#define H_h       srcend
+#define tmp1      x14
+#define tmp2      x16
+#define SMALL_BUFFER_SIZE    48
+
+/* This implementation handles overlaps and supports both memcpy and memmove
+   from a single entry point.  It uses unaligned accesses and branchless
+   sequences to keep the code small, simple and improve performance.
+
+   Copies are split into 3 main cases: small copies of up to 32 bytes, medium
+   copies of up to 128 bytes, and large copies.  The overhead of the overlap
+   check is negligible since it is only required for large copies.
+
+   Large copies use a software pipelined loop processing 64 bytes per iteration.
+   The destination pointer is 16-byte aligned to minimize unaligned accesses.
+   The loop tail is handled by always copying 64 bytes from the end.
+*/
+
+ALIAS_SYMBOL (__memmove_aarch64_nt, __memcpy_aarch64_nt)
+ENTRY (__memcpy_aarch64_nt)
+
+    add    srcend, src, count
+    add    dstend, dstin, count
+    cmp    count, 128
+    b.hi    L(copy_long)
+    cmp    count, 32
+    b.hi    L(copy32_128)
+
+    /* Small copies: 0..32 bytes.  */
+    cmp    count, 16
+    b.lo    L(copy16)
+    ldp    A_l, A_h, [src]
+    ldp    D_l, D_h, [srcend, -16]
+    stp    A_l, A_h, [dstin]
+    stp    D_l, D_h, [dstend, -16]
+    ret
+
+    /* Copy 8-15 bytes.  */
+L(copy16):
+    tbz    count, 3, L(copy8)
+    ldr    A_l, [src]
+    ldr    A_h, [srcend, -8]
+    str    A_l, [dstin]
+    str    A_h, [dstend, -8]
+    ret
+
+    .p2align 3
+    /* Copy 4-7 bytes.  */
+L(copy8):
+    tbz    count, 2, L(copy4)
+    ldr    A_lw, [src]
+    ldr    B_lw, [srcend, -4]
+    str    A_lw, [dstin]
+    str    B_lw, [dstend, -4]
+    ret
+
+    /* Copy 0..3 bytes using a branchless sequence.  */
+L(copy4):
+    cbz    count, L(copy0)
+    lsr    tmp1, count, 1
+    ldrb    A_lw, [src]
+    ldrb    C_lw, [srcend, -1]
+    ldrb    B_lw, [src, tmp1]
+    strb    A_lw, [dstin]
+    strb    B_lw, [dstin, tmp1]
+    strb    C_lw, [dstend, -1]
+L(copy0):
+    ret
+
+    .p2align 4
+    /* Medium copies: 33..128 bytes.  */
+L(copy32_128):
+    ldp    A_l, A_h, [src]
+    ldp    B_l, B_h, [src, 16]
+    ldp    C_l, C_h, [srcend, -32]
+    ldp    D_l, D_h, [srcend, -16]
+    cmp    count, 64
+    b.hi    L(copy128)
+    stp    A_l, A_h, [dstin]
+    stp    B_l, B_h, [dstin, 16]
+    stp    C_l, C_h, [dstend, -32]
+    stp    D_l, D_h, [dstend, -16]
+    ret
+
+    .p2align 4
+    /* Copy 65..128 bytes.  */
+L(copy128):
+    ldp    E_l, E_h, [src, 32]
+    ldp    F_l, F_h, [src, 48]
+    cmp    count, 96
+    b.ls    L(copy96)
+    ldp    G_l, G_h, [srcend, -64]
+    ldp    H_l, H_h, [srcend, -48]
+    stp    G_l, G_h, [dstend, -64]
+    stp    H_l, H_h, [dstend, -48]
+L(copy96):
+    stp    A_l, A_h, [dstin]
+    stp    B_l, B_h, [dstin, 16]
+    stp    E_l, E_h, [dstin, 32]
+    stp    F_l, F_h, [dstin, 48]
+    stp    C_l, C_h, [dstend, -32]
+    stp    D_l, D_h, [dstend, -16]
+    ret
+
+    .p2align 4
+    /* Copy more than 128 bytes.  */
+L(copy_long):
+    mov tmp2, #SMALL_BUFFER_SIZE
+    cmp count, tmp2, LSL#10
+    bgt L(copy_long_nt)
+    /* Use backwards copy if there is an overlap.  */
+    sub    tmp1, dstin, src
+    cbz    tmp1, L(copy0)
+    cmp    tmp1, count
+    b.lo    L(copy_long_backwards)
+
+    /* Copy 16 bytes and then align dst to 16-byte alignment.  */
+
+    ldp    D_l, D_h, [src]
+    and    tmp1, dstin, 15
+    bic    dst, dstin, 15
+    sub    src, src, tmp1
+    add    count, count, tmp1    /* Count is now 16 too large.  */
+    ldp    A_l, A_h, [src, 16]
+    stp    D_l, D_h, [dstin]
+    ldp    B_l, B_h, [src, 32]
+    ldp    C_l, C_h, [src, 48]
+    ldp    D_l, D_h, [src, 64]!
+    subs    count, count, 128 + 16    /* Test and readjust count.  */
+    b.ls    L(copy64_from_end)
+
+L(loop64):
+    stp    A_l, A_h, [dst, 16]
+    ldp    A_l, A_h, [src, 16]
+    stp    B_l, B_h, [dst, 32]
+    ldp    B_l, B_h, [src, 32]
+    stp    C_l, C_h, [dst, 48]
+    ldp    C_l, C_h, [src, 48]
+    stp    D_l, D_h, [dst, 64]!
+    ldp    D_l, D_h, [src, 64]!
+    subs    count, count, 64
+    b.hi    L(loop64)
+
+    /* Write the last iteration and copy 64 bytes from the end.  */
+L(copy64_from_end):
+    ldp    E_l, E_h, [srcend, -64]
+    stp    A_l, A_h, [dst, 16]
+    ldp    A_l, A_h, [srcend, -48]
+    stp    B_l, B_h, [dst, 32]
+    ldp    B_l, B_h, [srcend, -32]
+    stp    C_l, C_h, [dst, 48]
+    ldp    C_l, C_h, [srcend, -16]
+    stp    D_l, D_h, [dst, 64]
+    stp    E_l, E_h, [dstend, -64]
+    stp    A_l, A_h, [dstend, -48]
+    stp    B_l, B_h, [dstend, -32]
+    stp    C_l, C_h, [dstend, -16]
+    ret
+
+    .p2align 4
+
+    /* Large backwards copy for overlapping copies.
+       Copy 16 bytes and then align dst to 16-byte alignment.  */
+L(copy_long_backwards):
+    ldp    D_l, D_h, [srcend, -16]
+    and    tmp1, dstend, 15
+    sub    srcend, srcend, tmp1
+    sub    count, count, tmp1
+    ldp    A_l, A_h, [srcend, -16]
+    stp    D_l, D_h, [dstend, -16]
+    ldp    B_l, B_h, [srcend, -32]
+    ldp    C_l, C_h, [srcend, -48]
+    ldp    D_l, D_h, [srcend, -64]!
+    sub    dstend, dstend, tmp1
+    subs    count, count, 128
+    b.ls    L(copy64_from_start)
+
+L(loop64_backwards):
+    stp    A_l, A_h, [dstend, -16]
+    ldp    A_l, A_h, [srcend, -16]
+    stp    B_l, B_h, [dstend, -32]
+    ldp    B_l, B_h, [srcend, -32]
+    stp    C_l, C_h, [dstend, -48]
+    ldp    C_l, C_h, [srcend, -48]
+    stp    D_l, D_h, [dstend, -64]!
+    ldp    D_l, D_h, [srcend, -64]!
+    subs    count, count, 64
+    b.hi    L(loop64_backwards)
+
+    /* Write the last iteration and copy 64 bytes from the start.  */
+L(copy64_from_start):
+    ldp    G_l, G_h, [src, 48]
+    stp    A_l, A_h, [dstend, -16]
+    ldp    A_l, A_h, [src, 32]
+    stp    B_l, B_h, [dstend, -32]
+    ldp    B_l, B_h, [src, 16]
+    stp    C_l, C_h, [dstend, -48]
+    ldp    C_l, C_h, [src]
+    stp    D_l, D_h, [dstend, -64]
+    stp    G_l, G_h, [dstin, 48]
+    stp    A_l, A_h, [dstin, 32]
+    stp    B_l, B_h, [dstin, 16]
+    stp    C_l, C_h, [dstin]
+    ret
+
+    .p2align 4
+    /* Copy more than 48 KB using ldnp+stnp (non-temporal) instructions.  */
+L(copy_long_nt):
+    /* Use backwards copy if there is an overlap.  */
+    sub    tmp1, dstin, src
+    cbz    tmp1, L(copy0)
+    cmp    tmp1, count
+    b.lo    L(copy_long_backwards_nt)
+
+    /* Copy 16 bytes and then align dst to 16-byte alignment.  */
+
+    ldnp    D_l, D_h, [src]
+    and    tmp1, dstin, 15
+    bic    dst, dstin, 15
+    sub    src, src, tmp1
+    add    count, count, tmp1    /* Count is now 16 too large.  */
+    ldnp    A_l, A_h, [src, 16]
+    stnp    D_l, D_h, [dstin]
+    ldnp    B_l, B_h, [src, 32]
+    ldnp    C_l, C_h, [src, 48]
+    ldnp    D_l, D_h, [src, 64]
+    add     src, src, #64
+    subs    count, count, 128 + 16    /* Test and readjust count.  */
+    b.ls    L(copy64_from_end_nt)
+
+L(loop64_nt):
+    stnp    A_l, A_h, [dst, 16]
+    ldnp    A_l, A_h, [src, 16]
+    stnp    B_l, B_h, [dst, 32]
+    ldnp    B_l, B_h, [src, 32]
+    stnp    C_l, C_h, [dst, 48]
+    ldnp    C_l, C_h, [src, 48]
+    stnp    D_l, D_h, [dst, 64]
+    add dst, dst, #64
+    ldnp    D_l, D_h, [src, 64]
+    add src, src, #64
+    subs    count, count, 64
+    b.hi    L(loop64_nt)
+
+    /* Write the last iteration and copy 64 bytes from the end.  */
+L(copy64_from_end_nt):
+    ldnp    E_l, E_h, [srcend, -64]
+    stnp    A_l, A_h, [dst, 16]
+    ldnp    A_l, A_h, [srcend, -48]
+    stnp    B_l, B_h, [dst, 32]
+    ldnp    B_l, B_h, [srcend, -32]
+    stnp    C_l, C_h, [dst, 48]
+    ldnp    C_l, C_h, [srcend, -16]
+    stnp    D_l, D_h, [dst, 64]
+    stnp    E_l, E_h, [dstend, -64]
+    stnp    A_l, A_h, [dstend, -48]
+    stnp    B_l, B_h, [dstend, -32]
+    stnp    C_l, C_h, [dstend, -16]
+    ret
+
+    .p2align 4
+
+    /* Large backwards copy for overlapping copies.
+       Copy 16 bytes and then align dst to 16-byte alignment.  */
+L(copy_long_backwards_nt):
+    ldnp    D_l, D_h, [srcend, -16]
+    and    tmp1, dstend, 15
+    sub    srcend, srcend, tmp1
+    sub    count, count, tmp1
+    ldnp    A_l, A_h, [srcend, -16]
+    stnp    D_l, D_h, [dstend, -16]
+    ldnp    B_l, B_h, [srcend, -32]
+    ldnp    C_l, C_h, [srcend, -48]
+    ldnp    D_l, D_h, [srcend, -64]
+    add     srcend, srcend, #-64
+    sub    dstend, dstend, tmp1
+    subs    count, count, 128
+    b.ls    L(copy64_from_start_nt)
+
+L(loop64_backwards_nt):
+    stnp    A_l, A_h, [dstend, -16]
+    ldnp    A_l, A_h, [srcend, -16]
+    stnp    B_l, B_h, [dstend, -32]
+    ldnp    B_l, B_h, [srcend, -32]
+    stnp    C_l, C_h, [dstend, -48]
+    ldnp    C_l, C_h, [srcend, -48]
+    stnp    D_l, D_h, [dstend, -64]
+    add     dstend, dstend, #-64
+    ldnp    D_l, D_h, [srcend, -64]
+    add     srcend, srcend, #-64
+    subs    count, count, 64
+    b.hi    L(loop64_backwards_nt)
+
+    /* Write the last iteration and copy 64 bytes from the start.  */
+L(copy64_from_start_nt):
+    ldnp    G_l, G_h, [src, 48]
+    stnp    A_l, A_h, [dstend, -16]
+    ldnp    A_l, A_h, [src, 32]
+    stnp    B_l, B_h, [dstend, -32]
+    ldnp    B_l, B_h, [src, 16]
+    stnp    C_l, C_h, [dstend, -48]
+    ldnp    C_l, C_h, [src]
+    stnp    D_l, D_h, [dstend, -64]
+    stnp    G_l, G_h, [dstin, 48]
+    stnp    A_l, A_h, [dstin, 32]
+    stnp    B_l, B_h, [dstin, 16]
+    stnp    C_l, C_h, [dstin]
+    ret
+
+END (__memcpy_aarch64_nt)
+
diff --git a/libc/arch-arm64/oryon/memset-nt.S b/libc/arch-arm64/oryon/memset-nt.S
new file mode 100644
index 0000000..b91e7da
--- /dev/null
+++ b/libc/arch-arm64/oryon/memset-nt.S
@@ -0,0 +1,218 @@
+/* Copyright (c) 2012, Linaro Limited
+   All rights reserved.
+   Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved.
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions are met:
+       * Redistributions of source code must retain the above copyright
+         notice, this list of conditions and the following disclaimer.
+       * Redistributions in binary form must reproduce the above copyright
+         notice, this list of conditions and the following disclaimer in the
+         documentation and/or other materials provided with the distribution.
+       * Neither the name of the Linaro nor the
+         names of its contributors may be used to endorse or promote products
+         derived from this software without specific prior written permission.
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+   HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+/* Assumptions:
+ *
+ * ARMv8-a, AArch64
+ * Unaligned accesses
+ *
+ */
+#include <private/bionic_asm.h>
+
+#define dstin		x0
+#define val		    w1
+#define count		x2
+#define tmp1		x3
+#define tmp1w		w3
+#define tmp2		x4
+#define tmp2w		w4
+#define zva_len_x	x5
+#define zva_len		w5
+#define zva_bits_x	x6
+#define A_l		    x7
+#define A_lw		w7
+#define dst		    x8
+#define tmp3w		w9
+#define tmp4        x10
+#define SMALL_BUFFER_SIZE    96
+
+ENTRY(__memset_aarch64_nt)
+    mov	dst, dstin		/* Preserve return value.  */
+    ands	A_lw, val, #255
+    b.eq	.Lzero_mem  /* Use DC ZVA instruction if the val = 0 */
+    orr	A_lw, A_lw, A_lw, lsl #8
+    orr	A_lw, A_lw, A_lw, lsl #16
+    orr	A_l, A_l, A_l, lsl #32
+.Ltail_maybe_long:
+    cmp	count, #64
+    b.ge	.Lnot_short
+.Ltail_maybe_tiny:
+    cmp	count, #15
+    b.le	.Ltail15tiny
+.Ltail63:
+    ands	tmp1, count, #0x30
+    b.eq	.Ltail15
+    add	dst, dst, tmp1
+    cmp	tmp1w, #0x20
+    b.eq	1f
+    b.lt	2f
+    stp	A_l, A_l, [dst, #-48]
+1:
+    stp	A_l, A_l, [dst, #-32]
+2:
+    stp	A_l, A_l, [dst, #-16]
+.Ltail15:
+    and	count, count, #15
+    add	dst, dst, count
+    stp	A_l, A_l, [dst, #-16]	/* Repeat some/all of last store. */
+    ret
+.Ltail15tiny:
+    /* Set up to 15 bytes.  Does not assume earlier memory
+       being set.  */
+    tbz	count, #3, 1f
+    str	A_l, [dst], #8
+1:
+    tbz	count, #2, 1f
+    str	A_lw, [dst], #4
+1:
+    tbz	count, #1, 1f
+    strh	A_lw, [dst], #2
+1:
+    tbz	count, #0, 1f
+    strb	A_lw, [dst]
+1:
+    ret
+    /* Critical loop.  Start at a new cache line boundary.  Assuming
+     * 64 bytes per line, this ensures the entire loop is in one line.  */
+    .p2align 6
+.Lnot_short:
+    mov tmp4, #SMALL_BUFFER_SIZE
+    cmp count, tmp4, LSL#10
+    /* Use non-temporal instruction if count > SMALL_BUFFER_SIZE */
+    bgt L(not_short_nt)
+    neg	tmp2, dst
+    ands	tmp2, tmp2, #15
+    b.eq	2f
+    /* Bring DST to 128-bit (16-byte) alignment.  We know that there's
+     * more than that to set, so we simply store 16 bytes and advance by
+     * the amount required to reach alignment.  */
+    sub	count, count, tmp2
+    stp	A_l, A_l, [dst]
+    add	dst, dst, tmp2
+    /* There may be less than 63 bytes to go now.  */
+    cmp	count, #63
+    b.le	.Ltail63
+2:
+    sub	dst, dst, #16		/* Pre-bias.  */
+    sub	count, count, #64
+1:
+    stp	A_l, A_l, [dst, #16]
+    stp	A_l, A_l, [dst, #32]
+    stp	A_l, A_l, [dst, #48]
+    stp	A_l, A_l, [dst, #64]!
+    subs	count, count, #64
+    b.ge	1b
+    tst	count, #0x3f
+    add	dst, dst, #16
+    b.ne	.Ltail63
+    ret
+.Lnot_short_nt:
+    neg	tmp2, dst
+    ands	tmp2, tmp2, #15
+    b.eq	2f
+    /* Bring DST to 128-bit (16-byte) alignment.  We know that there's
+     * more than that to set, so we simply store 16 bytes and advance by
+     * the amount required to reach alignment.  */
+    sub	count, count, tmp2
+    stnp	A_l, A_l, [dst]
+    add	dst, dst, tmp2
+    /* There may be less than 63 bytes to go now.  */
+    cmp	count, #63
+    b.le	.Ltail63
+2:
+    sub	dst, dst, #16		/* Pre-bias.  */
+    sub	count, count, #64
+1:
+    stnp	A_l, A_l, [dst, #16]
+    stnp	A_l, A_l, [dst, #32]
+    stnp	A_l, A_l, [dst, #48]
+    stnp	A_l, A_l, [dst, #64]
+    add     dst, dst, #64
+    subs	count, count, #64
+    b.ge	1b
+    tst	count, #0x3f
+    add	dst, dst, #16
+    b.ne	.Ltail63
+    ret
+.Lzero_mem:
+    mov	A_l, #0
+    cmp	count, #63
+    b.le	.Ltail_maybe_tiny
+    neg	tmp2, dst
+    ands	tmp2, tmp2, #15
+    b.eq	1f
+    sub	count, count, tmp2
+    stp	A_l, A_l, [dst]
+    add	dst, dst, tmp2
+    cmp	count, #63
+    b.le	.Ltail63
+1:
+    /* For zeroing small amounts of memory, it's not worth setting up
+     * the line-clear code.  */
+    cmp	count, #128
+    b.lt	.Lnot_short
+    mrs	tmp1, dczid_el0
+    tbnz	tmp1, #4, .Lnot_short
+    mov	tmp3w, #4
+    and	zva_len, tmp1w, #15	/* Safety: other bits reserved.  */
+    lsl	zva_len, tmp3w, zva_len
+.Lzero_by_line:
+    /* Compute how far we need to go to become suitably aligned.  We're
+     * already at quad-word alignment.  */
+    cmp	count, zva_len_x
+    b.lt	.Lnot_short		/* Not enough to reach alignment.  */
+    sub	zva_bits_x, zva_len_x, #1
+    neg	tmp2, dst
+    ands	tmp2, tmp2, zva_bits_x
+    b.eq	1f			/* Already aligned.  */
+    /* Not aligned, check that there's enough to copy after alignment.  */
+    sub	tmp1, count, tmp2
+    cmp	tmp1, #64
+    ccmp	tmp1, zva_len_x, #8, ge	/* NZCV=0b1000 */
+    b.lt	.Lnot_short
+    /* We know that there's at least 64 bytes to zero and that it's safe
+     * to overrun by 64 bytes.  */
+    mov	count, tmp1
+2:
+    stp	A_l, A_l, [dst]
+    stp	A_l, A_l, [dst, #16]
+    stp	A_l, A_l, [dst, #32]
+    subs	tmp2, tmp2, #64
+    stp	A_l, A_l, [dst, #48]
+    add	dst, dst, #64
+    b.ge	2b
+    /* We've overrun a bit, so adjust dst downwards.  */
+    add	dst, dst, tmp2
+1:
+    sub	count, count, zva_len_x
+3:
+    dc	zva, dst
+    add	dst, dst, zva_len_x
+    subs	count, count, zva_len_x
+    b.ge	3b
+    ands	count, count, zva_bits_x
+    b.ne	.Ltail_maybe_long
+    ret
+END(__memset_aarch64_nt)
diff --git a/libc/arch-arm64/static_function_dispatch.S b/libc/arch-arm64/static_function_dispatch.S
index c7557f8..18c3783 100644
--- a/libc/arch-arm64/static_function_dispatch.S
+++ b/libc/arch-arm64/static_function_dispatch.S
@@ -37,6 +37,8 @@
 FUNCTION_DELEGATE(memcmp, __memcmp_aarch64)
 FUNCTION_DELEGATE(memcpy, __memcpy_aarch64)
 FUNCTION_DELEGATE(memmove, __memmove_aarch64)
+FUNCTION_DELEGATE(memrchr, __memrchr_aarch64)
+FUNCTION_DELEGATE(memset, __memset_aarch64)
 FUNCTION_DELEGATE(stpcpy, __stpcpy_aarch64)
 FUNCTION_DELEGATE(strchr, __strchr_aarch64_mte)
 FUNCTION_DELEGATE(strchrnul, __strchrnul_aarch64_mte)
diff --git a/libc/arch-arm64/string/__memcpy_chk.S b/libc/arch-arm64/string/__memcpy_chk.S
index a8e9e83..c9fc2f7 100644
--- a/libc/arch-arm64/string/__memcpy_chk.S
+++ b/libc/arch-arm64/string/__memcpy_chk.S
@@ -31,10 +31,10 @@
 ENTRY(__memcpy_chk)
   cmp x2, x3
   // Direct b.ls memcpy may not have enough range
-  b.hi .L_memcpy_chk_fail
+  b.hi L(__memcpy_chk_fail_trampoline)
   b memcpy
 
-.L_memcpy_chk_fail:
+L(__memcpy_chk_fail_trampoline):
   // Preserve for accurate backtrace.
   stp x29, x30, [sp, -16]!
   .cfi_def_cfa_offset 16
diff --git a/libc/arch-arm64/string/__memset_chk.S b/libc/arch-arm64/string/__memset_chk.S
index e1e29d0..7a105ce 100644
--- a/libc/arch-arm64/string/__memset_chk.S
+++ b/libc/arch-arm64/string/__memset_chk.S
@@ -31,10 +31,10 @@
 ENTRY(__memset_chk)
   cmp x2, x3
   // Direct b.ls memcpy may not have enough range
-  b.hi .L_memset_chk_fail
+  b.hi L(__memset_chk_fail_trampoline)
   b memset
 
-.L_memset_chk_fail:
+L(__memset_chk_fail_trampoline):
   // Preserve for accurate backtrace.
   stp x29, x30, [sp, -16]!
   .cfi_def_cfa_offset 16
diff --git a/libc/arch-riscv64/bionic/__bionic_clone.S b/libc/arch-riscv64/bionic/__bionic_clone.S
index 2827857..be386b1 100644
--- a/libc/arch-riscv64/bionic/__bionic_clone.S
+++ b/libc/arch-riscv64/bionic/__bionic_clone.S
@@ -41,19 +41,19 @@
   ecall
 
   # Are we the child?
-  beqz a0, .L_bc_child
+  beqz a0, L(child)
 
   # Did the clone(2) fail?
-  bltz a0, .L_bc_failure
+  bltz a0, L(failure)
   # Nope, we're the parent, and our work here is done.
   ret
 
-.L_bc_failure:
+L(failure):
   # Set errno if something went wrong.
   neg a0, a0
   tail __set_errno_internal
 
-.L_bc_child:
+L(child):
   # We're in the child now. Set the end of the frame record chain.
   li fp, 0
   # Setting ra to 0 will make the unwinder stop at __start_thread.
diff --git a/libc/arch-riscv64/bionic/setjmp.S b/libc/arch-riscv64/bionic/setjmp.S
index 81b1e35..5de1099 100644
--- a/libc/arch-riscv64/bionic/setjmp.S
+++ b/libc/arch-riscv64/bionic/setjmp.S
@@ -205,7 +205,7 @@
   // Check the checksum before doing anything.
   m_calculate_checksum t0, a0, t1
   ld t1, _JB_CHECKSUM(a0)
-  bne t0, t1, 3f
+  bne t0, t1, L(checksum_failure)
 
   // Do we need to restore the signal mask?
   ld a2, _JB_SIGFLAG(a0)
@@ -290,7 +290,7 @@
   mv a0, a1
   ret
 
-3:
+L(checksum_failure):
   call __bionic_setjmp_checksum_mismatch
 END(siglongjmp)
 
diff --git a/libc/arch-riscv64/bionic/syscall.S b/libc/arch-riscv64/bionic/syscall.S
index 1a6e60a..ca735c7 100644
--- a/libc/arch-riscv64/bionic/syscall.S
+++ b/libc/arch-riscv64/bionic/syscall.S
@@ -44,10 +44,10 @@
 
   // Did it fail?
   li a7, -MAX_ERRNO
-  bgtu a0, a7, 1f
-
+  bgtu a0, a7, L(failure)
   ret
-1:
+
+L(failure):
   neg a0, a0
   tail __set_errno_internal
 END(syscall)
diff --git a/libc/arch-riscv64/bionic/vfork.S b/libc/arch-riscv64/bionic/vfork.S
index 29ab405..06ebc3e 100644
--- a/libc/arch-riscv64/bionic/vfork.S
+++ b/libc/arch-riscv64/bionic/vfork.S
@@ -51,16 +51,16 @@
   ecall
 
   // if (rc == 0) we're the child, and finished...
-  beqz    a0, .L_success
+  beqz    a0, L(success)
 
   // else if (rc != 0): reset cached_pid_ and vforked_...
   sw      t2, 20(t0)
   // ...and work out whether we succeeded or failed.
-  bltz    a0, .L_failure
-.L_success:
+  bltz    a0, L(failure)
+L(success):
   ret
 
-.L_failure:
+L(failure):
   neg     a0, a0
   tail    __set_errno_internal
 END(vfork)
diff --git a/libc/arch-riscv64/dynamic_function_dispatch.cpp b/libc/arch-riscv64/dynamic_function_dispatch.cpp
index 265ce3e..bb2ba51 100644
--- a/libc/arch-riscv64/dynamic_function_dispatch.cpp
+++ b/libc/arch-riscv64/dynamic_function_dispatch.cpp
@@ -35,7 +35,7 @@
 
 extern "C" {
 
-static __always_inline int ifunc_faccessat(int dir_fd, const char* path, int mode) {
+static inline __always_inline int ifunc_faccessat(int dir_fd, const char* path, int mode) {
   register long a0 __asm__("a0") = dir_fd;
   register long a1 __asm__("a1") = reinterpret_cast<long>(path);
   register long a2 __asm__("a2") = mode;
diff --git a/libc/arch-x86/bionic/setjmp.S b/libc/arch-x86/bionic/setjmp.S
index d22683a..b9e6bdf 100644
--- a/libc/arch-x86/bionic/setjmp.S
+++ b/libc/arch-x86/bionic/setjmp.S
@@ -65,19 +65,16 @@
 .endm
 
 ENTRY_WEAK_FOR_NATIVE_BRIDGE(setjmp)
-  movl 4(%esp),%ecx
   mov $1,%eax
   jmp .L_sigsetjmp
 END(setjmp)
 
 ENTRY_WEAK_FOR_NATIVE_BRIDGE(_setjmp)
-  movl 4(%esp),%ecx
   movl $0,%eax
   jmp .L_sigsetjmp
 END(_setjmp)
 
 ENTRY_WEAK_FOR_NATIVE_BRIDGE(sigsetjmp)
-  movl 4(%esp),%ecx
   movl 8(%esp),%eax
 
 .L_sigsetjmp:
@@ -88,6 +85,7 @@
   PIC_EPILOGUE
 
   // Record the setjmp cookie and whether or not we're saving the signal mask.
+  movl 4(%esp),%ecx
   movl %eax,(_JB_SIGFLAG * 4)(%ecx)
 
   // Do we need to save the signal mask?
diff --git a/libc/bionic/NetdClientDispatch.cpp b/libc/bionic/NetdClientDispatch.cpp
index e6f4a97..be5fb11 100644
--- a/libc/bionic/NetdClientDispatch.cpp
+++ b/libc/bionic/NetdClientDispatch.cpp
@@ -20,18 +20,12 @@
 
 #include "private/bionic_fdtrack.h"
 
-#ifdef __i386__
-#define __socketcall __attribute__((__cdecl__))
-#else
-#define __socketcall
-#endif
-
-extern "C" __socketcall int __accept4(int, sockaddr*, socklen_t*, int);
-extern "C" __socketcall int __connect(int, const sockaddr*, socklen_t);
-extern "C" __socketcall int __sendmmsg(int, const mmsghdr*, unsigned int, int);
-extern "C" __socketcall ssize_t __sendmsg(int, const msghdr*, unsigned int);
-extern "C" __socketcall int __sendto(int, const void*, size_t, int, const sockaddr*, socklen_t);
-extern "C" __socketcall int __socket(int, int, int);
+extern "C" int __accept4(int, sockaddr*, socklen_t*, int);
+extern "C" int __connect(int, const sockaddr*, socklen_t);
+extern "C" int __sendmmsg(int, const mmsghdr*, unsigned int, int);
+extern "C" ssize_t __sendmsg(int, const msghdr*, unsigned int);
+extern "C" int __sendto(int, const void*, size_t, int, const sockaddr*, socklen_t);
+extern "C" int __socket(int, int, int);
 
 static unsigned fallBackNetIdForResolv(unsigned netId) {
     return netId;
diff --git a/libc/bionic/__bionic_get_shell_path.cpp b/libc/bionic/__bionic_get_shell_path.cpp
index 5d22e00..3ea256d 100644
--- a/libc/bionic/__bionic_get_shell_path.cpp
+++ b/libc/bionic/__bionic_get_shell_path.cpp
@@ -29,10 +29,14 @@
 #include "private/__bionic_get_shell_path.h"
 
 const char* __bionic_get_shell_path() {
+  // For the host Bionic, we use the standard /bin/sh.
+  // Since P there's a /bin -> /system/bin symlink that means this will work
+  // for the device too, but as long as the NDK supports earlier API levels,
+  // we should probably make sure that this works in static binaries run on
+  // those OS versions too.
 #if !defined(__ANDROID__)
-  // For the host Bionic, use the standard /bin/sh
   return "/bin/sh";
 #else
   return "/system/bin/sh";
-#endif  // if !defined(__ANDROID__)
+#endif
 }
diff --git a/libc/bionic/bionic_allocator.cpp b/libc/bionic/bionic_allocator.cpp
index 80e8b08..41baf8b 100644
--- a/libc/bionic/bionic_allocator.cpp
+++ b/libc/bionic/bionic_allocator.cpp
@@ -299,7 +299,7 @@
     log2_size = kSmallObjectMinSizeLog2;
   }
 
-  return get_small_object_allocator(log2_size)->alloc();
+  return get_small_object_allocator_unchecked(log2_size)->alloc();
 }
 
 void* BionicAllocator::alloc(size_t size) {
@@ -330,9 +330,10 @@
 inline page_info* BionicAllocator::get_page_info(void* ptr) {
   page_info* info = get_page_info_unchecked(ptr);
   if (memcmp(info->signature, kSignature, sizeof(kSignature)) != 0) {
-    async_safe_fatal("invalid pointer %p (page signature mismatch)", ptr);
+    async_safe_fatal("invalid pointer %p (page signature %04x instead of %04x)", ptr,
+                     *reinterpret_cast<const unsigned*>(info->signature),
+                     *reinterpret_cast<const unsigned*>(kSignature));
   }
-
   return info;
 }
 
@@ -353,12 +354,7 @@
   if (info->type == kLargeObject) {
     old_size = info->allocated_size - (static_cast<char*>(ptr) - reinterpret_cast<char*>(info));
   } else {
-    BionicSmallObjectAllocator* allocator = get_small_object_allocator(info->type);
-    if (allocator != info->allocator_addr) {
-      async_safe_fatal("invalid pointer %p (page signature mismatch)", ptr);
-    }
-
-    old_size = allocator->get_block_size();
+    old_size = get_small_object_allocator(info, ptr)->get_block_size();
   }
 
   if (old_size < size) {
@@ -377,16 +373,10 @@
   }
 
   page_info* info = get_page_info(ptr);
-
   if (info->type == kLargeObject) {
     munmap(info, info->allocated_size);
   } else {
-    BionicSmallObjectAllocator* allocator = get_small_object_allocator(info->type);
-    if (allocator != info->allocator_addr) {
-      async_safe_fatal("invalid pointer %p (invalid allocator address for the page)", ptr);
-    }
-
-    allocator->free(ptr);
+    get_small_object_allocator(info, ptr)->free(ptr);
   }
 }
 
@@ -402,7 +392,7 @@
     return info->allocated_size - (static_cast<char*>(ptr) - reinterpret_cast<char*>(info));
   }
 
-  BionicSmallObjectAllocator* allocator = get_small_object_allocator(info->type);
+  BionicSmallObjectAllocator* allocator = get_small_object_allocator_unchecked(info->type);
   if (allocator != info->allocator_addr) {
     // Invalid pointer.
     return 0;
@@ -410,7 +400,7 @@
   return allocator->get_block_size();
 }
 
-BionicSmallObjectAllocator* BionicAllocator::get_small_object_allocator(uint32_t type) {
+BionicSmallObjectAllocator* BionicAllocator::get_small_object_allocator_unchecked(uint32_t type) {
   if (type < kSmallObjectMinSizeLog2 || type > kSmallObjectMaxSizeLog2) {
     async_safe_fatal("invalid type: %u", type);
   }
@@ -418,3 +408,11 @@
   initialize_allocators();
   return &allocators_[type - kSmallObjectMinSizeLog2];
 }
+
+BionicSmallObjectAllocator* BionicAllocator::get_small_object_allocator(page_info* pi, void* ptr) {
+  BionicSmallObjectAllocator* result = get_small_object_allocator_unchecked(pi->type);
+  if (result != pi->allocator_addr) {
+    async_safe_fatal("invalid pointer %p (invalid allocator address for the page)", ptr);
+  }
+  return result;
+}
\ No newline at end of file
diff --git a/libc/bionic/bionic_elf_tls.cpp b/libc/bionic/bionic_elf_tls.cpp
index 077f310..3245b90 100644
--- a/libc/bionic/bionic_elf_tls.cpp
+++ b/libc/bionic/bionic_elf_tls.cpp
@@ -60,11 +60,18 @@
   for (size_t i = 0; i < phdr_count; ++i) {
     const ElfW(Phdr)& phdr = phdr_table[i];
     if (phdr.p_type == PT_TLS) {
-      *out = TlsSegment {
-        phdr.p_memsz,
-        phdr.p_align,
-        reinterpret_cast<void*>(load_bias + phdr.p_vaddr),
-        phdr.p_filesz,
+      *out = TlsSegment{
+          .aligned_size =
+              TlsAlignedSize{
+                  .size = phdr.p_memsz,
+                  .align =
+                      TlsAlign{
+                          .value = phdr.p_align ?: 1,  // 0 means "no alignment requirement"
+                          .skew = phdr.p_vaddr % MAX(1, phdr.p_align),
+                      },
+              },
+          .init_ptr = reinterpret_cast<void*>(load_bias + phdr.p_vaddr),
+          .init_size = phdr.p_filesz,
       };
       return true;
     }
@@ -72,114 +79,171 @@
   return false;
 }
 
-// Return true if the alignment of a TLS segment is a valid power-of-two. Also
-// cap the alignment if it's too high.
-bool __bionic_check_tls_alignment(size_t* alignment) {
-  // N.B. The size does not need to be a multiple of the alignment. With
-  // ld.bfd (or after using binutils' strip), the TLS segment's size isn't
-  // rounded up.
-  if (*alignment == 0 || !powerof2(*alignment)) {
-    return false;
-  }
-  // Bionic only respects TLS alignment up to one page.
-  *alignment = MIN(*alignment, page_size());
-  return true;
+// Return true if the alignment of a TLS segment is a valid power-of-two.
+bool __bionic_check_tls_align(size_t align) {
+  // Note: The size does not need to be a multiple of the alignment. With ld.bfd
+  // (or after using binutils' strip), the TLS segment's size isn't rounded up.
+  return powerof2(align);
+}
+
+static void static_tls_layout_overflow() {
+  async_safe_fatal("error: TLS segments in static TLS overflowed");
+}
+
+static size_t align_checked(size_t value, TlsAlign tls_align) {
+  const size_t align = tls_align.value;
+  const size_t skew = tls_align.skew;
+  CHECK(align != 0 && powerof2(align + 0) && skew < align);
+  const size_t result = ((value - skew + align - 1) & ~(align - 1)) + skew;
+  if (result < value) static_tls_layout_overflow();
+  return result;
 }
 
 size_t StaticTlsLayout::offset_thread_pointer() const {
   return offset_bionic_tcb_ + (-MIN_TLS_SLOT * sizeof(void*));
 }
 
-// Reserves space for the Bionic TCB and the executable's TLS segment. Returns
-// the offset of the executable's TLS segment.
-size_t StaticTlsLayout::reserve_exe_segment_and_tcb(const TlsSegment* exe_segment,
+// Allocates the Bionic TCB and the executable's TLS segment in the static TLS
+// layout, satisfying alignment requirements for both.
+//
+// For an executable's TLS accesses (using the LocalExec model), the static
+// linker bakes TLS offsets directly into the .text section, so the loader must
+// place the executable segment at the same offset relative to the TP.
+// Similarly, the Bionic TLS slots (bionic_tcb) must also be allocated at the
+// correct offset relative to the TP.
+//
+// Returns the offset of the executable's TLS segment.
+//
+// Note: This function has unit tests, but they are in bionic-unit-tests-static,
+// not bionic-unit-tests.
+size_t StaticTlsLayout::reserve_exe_segment_and_tcb(const TlsSegment* seg,
                                                     const char* progname __attribute__((unused))) {
   // Special case: if the executable has no TLS segment, then just allocate a
   // TCB and skip the minimum alignment check on ARM.
-  if (exe_segment == nullptr) {
+  if (seg == nullptr) {
     offset_bionic_tcb_ = reserve_type<bionic_tcb>();
     return 0;
   }
 
 #if defined(__arm__) || defined(__aarch64__)
+  // ARM uses a "variant 1" TLS layout. The ABI specifies that the TP points at
+  // a 2-word TCB, followed by the executable's segment. In practice, libc
+  // implementations actually allocate a larger TCB at negative offsets from the
+  // TP.
+  //
+  // Historically, Bionic allocated an 8-word TCB starting at TP+0, so to keep
+  // the executable's TLS segment from overlapping the last 6 slots, Bionic
+  // requires that executables have an 8-word PT_TLS alignment to ensure that
+  // the TCB fits in the alignment padding, which it accomplishes using
+  // crtbegin.c. Bionic uses negative offsets for new TLS slots to avoid this
+  // problem.
 
-  // First reserve enough space for the TCB before the executable segment.
-  reserve(sizeof(bionic_tcb), 1);
+  static_assert(MIN_TLS_SLOT <= 0 && MAX_TLS_SLOT >= 1);
+  static_assert(sizeof(bionic_tcb) == (MAX_TLS_SLOT - MIN_TLS_SLOT + 1) * sizeof(void*));
+  static_assert(alignof(bionic_tcb) == sizeof(void*));
+  const size_t max_align = MAX(alignof(bionic_tcb), seg->aligned_size.align.value);
 
-  // Then reserve the segment itself.
-  const size_t result = reserve(exe_segment->size, exe_segment->alignment);
+  // Allocate the TCB first. Split it into negative and non-negative slots and
+  // ensure that TP (i.e. the first non-negative slot) is aligned to max_align.
+  const size_t tcb_size_pre = -MIN_TLS_SLOT * sizeof(void*);
+  const size_t tcb_size_post = (MAX_TLS_SLOT + 1) * sizeof(void*);
+  const auto pair =
+      reserve_tp_pair(TlsAlignedSize{.size = tcb_size_pre},
+                      TlsAlignedSize{.size = tcb_size_post, .align = TlsAlign{.value = max_align}});
+  offset_bionic_tcb_ = pair.before;
+  const size_t offset_tp = pair.tp;
 
-  // The variant 1 ABI that ARM linkers follow specifies a 2-word TCB between
-  // the thread pointer and the start of the executable's TLS segment, but both
-  // the thread pointer and the TLS segment are aligned appropriately for the
-  // TLS segment. Calculate the distance between the thread pointer and the
-  // EXE's segment.
-  const size_t exe_tpoff = __BIONIC_ALIGN(sizeof(void*) * 2, exe_segment->alignment);
+  // Allocate the segment.
+  offset_exe_ = reserve(seg->aligned_size);
 
-  const size_t min_bionic_alignment = BIONIC_ROUND_UP_POWER_OF_2(MAX_TLS_SLOT) * sizeof(void*);
-  if (exe_tpoff < min_bionic_alignment) {
-    async_safe_fatal("error: \"%s\": executable's TLS segment is underaligned: "
-                     "alignment is %zu, needs to be at least %zu for %s Bionic",
-                     progname, exe_segment->alignment, min_bionic_alignment,
-                     (sizeof(void*) == 4 ? "ARM" : "ARM64"));
+  // Verify that the ABI and Bionic tpoff values are equal, which is equivalent
+  // to checking whether the segment is sufficiently aligned.
+  const size_t abi_tpoff = align_checked(2 * sizeof(void*), seg->aligned_size.align);
+  const size_t actual_tpoff = align_checked(tcb_size_post, seg->aligned_size.align);
+  CHECK(actual_tpoff == offset_exe_ - offset_tp);
+
+  if (abi_tpoff != actual_tpoff) {
+    async_safe_fatal(
+        "error: \"%s\": executable's TLS segment is underaligned: "
+        "alignment is %zu (skew %zu), needs to be at least %zu for %s Bionic",
+        progname, seg->aligned_size.align.value, seg->aligned_size.align.skew, tcb_size_post,
+        (sizeof(void*) == 4 ? "ARM" : "ARM64"));
   }
 
-  offset_bionic_tcb_ = result - exe_tpoff - (-MIN_TLS_SLOT * sizeof(void*));
-  return result;
-
 #elif defined(__i386__) || defined(__x86_64__)
 
-  // x86 uses variant 2 TLS layout. The executable's segment is located just
-  // before the TCB.
-  static_assert(MIN_TLS_SLOT == 0, "First slot of bionic_tcb must be slot #0 on x86");
-  const size_t exe_size = round_up_with_overflow_check(exe_segment->size, exe_segment->alignment);
-  reserve(exe_size, 1);
-  const size_t max_align = MAX(alignof(bionic_tcb), exe_segment->alignment);
-  offset_bionic_tcb_ = reserve(sizeof(bionic_tcb), max_align);
-  return offset_bionic_tcb_ - exe_size;
+  auto pair = reserve_tp_pair(seg->aligned_size, TlsAlignedSize::of_type<bionic_tcb>());
+  offset_exe_ = pair.before;
+  offset_bionic_tcb_ = pair.after;
 
 #elif defined(__riscv)
+  static_assert(MAX_TLS_SLOT == -1, "Last slot of bionic_tcb must be slot #(-1) on riscv");
 
-  // First reserve enough space for the TCB before the executable segment.
-  offset_bionic_tcb_ = reserve(sizeof(bionic_tcb), 1);
-
-  // Then reserve the segment itself.
-  const size_t exe_size = round_up_with_overflow_check(exe_segment->size, exe_segment->alignment);
-  return reserve(exe_size, 1);
+  auto pair = reserve_tp_pair(TlsAlignedSize::of_type<bionic_tcb>(), seg->aligned_size);
+  offset_bionic_tcb_ = pair.before;
+  offset_exe_ = pair.after;
 
 #else
 #error "Unrecognized architecture"
 #endif
+
+  return offset_exe_;
 }
 
-void StaticTlsLayout::reserve_bionic_tls() {
+size_t StaticTlsLayout::reserve_bionic_tls() {
   offset_bionic_tls_ = reserve_type<bionic_tls>();
+  return offset_bionic_tls_;
 }
 
 void StaticTlsLayout::finish_layout() {
   // Round the offset up to the alignment.
-  offset_ = round_up_with_overflow_check(offset_, alignment_);
-
-  if (overflowed_) {
-    async_safe_fatal("error: TLS segments in static TLS overflowed");
-  }
+  cursor_ = align_checked(cursor_, TlsAlign{.value = align_});
 }
 
-// The size is not required to be a multiple of the alignment. The alignment
-// must be a positive power-of-two.
-size_t StaticTlsLayout::reserve(size_t size, size_t alignment) {
-  offset_ = round_up_with_overflow_check(offset_, alignment);
-  const size_t result = offset_;
-  if (__builtin_add_overflow(offset_, size, &offset_)) overflowed_ = true;
-  alignment_ = MAX(alignment_, alignment);
+size_t StaticTlsLayout::align_cursor(TlsAlign align) {
+  cursor_ = align_checked(cursor_, align);
+  align_ = MAX(align_, align.value);
+  return cursor_;
+}
+
+size_t StaticTlsLayout::align_cursor_unskewed(size_t align) {
+  return align_cursor(TlsAlign{.value = align});
+}
+
+// Reserve the requested number of bytes at the requested alignment. The
+// requested size is not required to be a multiple of the alignment, nor is the
+// cursor aligned after the allocation.
+size_t StaticTlsLayout::reserve(TlsAlignedSize aligned_size) {
+  align_cursor(aligned_size.align);
+  const size_t result = cursor_;
+  if (__builtin_add_overflow(cursor_, aligned_size.size, &cursor_)) static_tls_layout_overflow();
   return result;
 }
 
-size_t StaticTlsLayout::round_up_with_overflow_check(size_t value, size_t alignment) {
-  const size_t old_value = value;
-  value = __BIONIC_ALIGN(value, alignment);
-  if (value < old_value) overflowed_ = true;
-  return value;
+// Calculate the TP offset and allocate something before it and something after
+// it. The TP will be aligned to:
+//
+//     MAX(before.align.value, after.align.value)
+//
+// The `before` and `after` allocations are each allocated as closely as
+// possible to the TP.
+StaticTlsLayout::TpAllocations StaticTlsLayout::reserve_tp_pair(TlsAlignedSize before,
+                                                                TlsAlignedSize after) {
+  // Tentative `before` allocation.
+  const size_t tentative_before = reserve(before);
+  const size_t tentative_before_end = align_cursor_unskewed(before.align.value);
+
+  const size_t offset_tp = align_cursor_unskewed(MAX(before.align.value, after.align.value));
+
+  const size_t offset_after = reserve(after);
+
+  // If the `after` allocation has higher alignment than `before`, then there
+  // may be alignment padding to remove between `before` and the TP. Shift
+  // `before` forward to remove this padding.
+  CHECK(((offset_tp - tentative_before_end) & (before.align.value - 1)) == 0);
+  const size_t offset_before = tentative_before + (offset_tp - tentative_before_end);
+
+  return TpAllocations{offset_before, offset_tp, offset_after};
 }
 
 // Copy each TLS module's initialization image into a newly-allocated block of
@@ -309,7 +373,11 @@
   void* mod_ptr = dtv->modules[module_idx];
   if (mod_ptr == nullptr) {
     const TlsSegment& segment = modules.module_table[module_idx].segment;
-    mod_ptr = __libc_shared_globals()->tls_allocator.memalign(segment.alignment, segment.size);
+    // TODO: Currently the aligned_size.align.skew property is ignored.
+    // That is, for a dynamic TLS block at addr A, (A % p_align) will be 0, not
+    // (p_vaddr % p_align).
+    mod_ptr = __libc_shared_globals()->tls_allocator.memalign(segment.aligned_size.align.value,
+                                                              segment.aligned_size.size);
     if (segment.init_size > 0) {
       memcpy(mod_ptr, segment.init_ptr, segment.init_size);
     }
@@ -317,8 +385,8 @@
 
     // Reports the allocation to the listener, if any.
     if (modules.on_creation_cb != nullptr) {
-      modules.on_creation_cb(mod_ptr,
-                             static_cast<void*>(static_cast<char*>(mod_ptr) + segment.size));
+      modules.on_creation_cb(
+          mod_ptr, static_cast<void*>(static_cast<char*>(mod_ptr) + segment.aligned_size.size));
     }
   }
 
@@ -332,9 +400,10 @@
 // segment.
 //
 // On most targets, this accessor function is __tls_get_addr and
-// TLS_GET_ADDR_CCONV is unset. 32-bit x86 uses ___tls_get_addr instead and a
-// regparm() calling convention.
-extern "C" void* TLS_GET_ADDR(const TlsIndex* ti) TLS_GET_ADDR_CCONV {
+// TLS_GET_ADDR_CALLING_CONVENTION is unset, but 32-bit x86 uses
+// ___tls_get_addr (with three underscores) instead, and a regparm
+// calling convention.
+extern "C" void* TLS_GET_ADDR(const TlsIndex* ti) TLS_GET_ADDR_CALLING_CONVENTION {
   TlsDtv* dtv = __get_tcb_dtv(__get_bionic_tcb());
 
   // TODO: See if we can use a relaxed memory ordering here instead.
diff --git a/libc/bionic/ether_aton.c b/libc/bionic/ether_aton.c
deleted file mode 100644
index edd6b11..0000000
--- a/libc/bionic/ether_aton.c
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <net/ethernet.h>
-
-#include <ctype.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-static inline int
-xdigit (char c) {
-    unsigned d;
-    d = (unsigned)(c-'0');
-    if (d < 10) return (int)d;
-    d = (unsigned)(c-'a');
-    if (d < 6) return (int)(10+d);
-    d = (unsigned)(c-'A');
-    if (d < 6) return (int)(10+d);
-    return -1;
-}
-
-/*
- * Convert Ethernet address in the standard hex-digits-and-colons to binary
- * representation.
- * Re-entrant version (GNU extensions)
- */
-struct ether_addr *
-ether_aton_r (const char *asc, struct ether_addr * addr)
-{
-    int i, val0, val1;
-    for (i = 0; i < ETHER_ADDR_LEN; ++i) {
-        val0 = xdigit(*asc);
-        asc++;
-        if (val0 < 0)
-            return NULL;
-
-        val1 = xdigit(*asc);
-        asc++;
-        if (val1 < 0)
-            return NULL;
-
-        addr->ether_addr_octet[i] = (u_int8_t)((val0 << 4) + val1);
-
-        if (i < ETHER_ADDR_LEN - 1) {
-            if (*asc != ':')
-                return NULL;
-            asc++;
-        }
-    }
-    if (*asc != '\0')
-        return NULL;
-    return addr;
-}
-
-/*
- * Convert Ethernet address in the standard hex-digits-and-colons to binary
- * representation.
- */
-struct ether_addr *
-ether_aton (const char *asc)
-{
-    static struct ether_addr addr;
-    return ether_aton_r(asc, &addr);
-}
diff --git a/libc/bionic/ether_ntoa.c b/libc/bionic/ether_ntoa.c
deleted file mode 100644
index 7c31af3..0000000
--- a/libc/bionic/ether_ntoa.c
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <stdio.h>
-#include <sys/types.h>
-#include <net/ethernet.h>
-
-/*
- * Convert Ethernet address to standard hex-digits-and-colons printable form.
- * Re-entrant version (GNU extensions).
- */
-char *
-ether_ntoa_r (const struct ether_addr *addr, char * buf)
-{
-    snprintf(buf, 18, "%02x:%02x:%02x:%02x:%02x:%02x",
-            addr->ether_addr_octet[0], addr->ether_addr_octet[1],
-            addr->ether_addr_octet[2], addr->ether_addr_octet[3],
-            addr->ether_addr_octet[4], addr->ether_addr_octet[5]);
-    return buf;
-}
-
-/*
- * Convert Ethernet address to standard hex-digits-and-colons printable form.
- */
-char *
-ether_ntoa (const struct ether_addr *addr)
-{
-    static char buf[18];
-    return ether_ntoa_r(addr, buf);
-}
diff --git a/libc/bionic/exec.cpp b/libc/bionic/exec.cpp
index 863aa97..56544d0 100644
--- a/libc/bionic/exec.cpp
+++ b/libc/bionic/exec.cpp
@@ -41,10 +41,8 @@
 
 #include "private/FdPath.h"
 #include "private/__bionic_get_shell_path.h"
-#include "pthread_internal.h"
 
 extern "C" char** environ;
-extern "C" int __execve(const char* pathname, char* const* argv, char* const* envp);
 
 enum { ExecL, ExecLE, ExecLP };
 
@@ -183,8 +181,3 @@
   if (errno == ENOENT) errno = EBADF;
   return -1;
 }
-
-__attribute__((no_sanitize("memtag"))) int execve(const char* pathname, char* const* argv,
-                                                  char* const* envp) {
-  return __execve(pathname, argv, envp);
-}
diff --git a/libc/bionic/execinfo.cpp b/libc/bionic/execinfo.cpp
index d129f7c..e53a037 100644
--- a/libc/bionic/execinfo.cpp
+++ b/libc/bionic/execinfo.cpp
@@ -73,6 +73,11 @@
 #elif defined(__aarch64__)
     // All instructions are 4 bytes long, skip back one instruction.
     ip -= 4;
+#elif defined(__riscv)
+    // C instructions are the shortest at 2 bytes long. (Unlike thumb, it's
+    // non-trivial to recognize C instructions when going backwards in the
+    // instruction stream.)
+    ip -= 2;
 #elif defined(__i386__) || defined(__x86_64__)
     // It's difficult to decode exactly where the previous instruction is,
     // so subtract 1 to estimate where the instruction lives.
diff --git a/libc/bionic/exit.cpp b/libc/bionic/exit.cpp
index 04baac2..a5aed78 100644
--- a/libc/bionic/exit.cpp
+++ b/libc/bionic/exit.cpp
@@ -30,17 +30,9 @@
 #include <unistd.h>
 
 #include "private/bionic_defs.h"
-#include "pthread_internal.h"
 
 extern "C" void __cxa_finalize(void* dso_handle);
 extern "C" void __cxa_thread_finalize();
-extern "C" __noreturn void __exit_group(int status);
-
-__attribute__((no_sanitize("memtag"))) void _exit(int status) {
-  __exit_group(status);
-}
-
-__strong_alias(_Exit, _exit);
 
 __BIONIC_WEAK_FOR_NATIVE_BRIDGE
 void exit(int status) {
diff --git a/libc/bionic/fdsan.cpp b/libc/bionic/fdsan.cpp
index 84d2c94..0b0678b 100644
--- a/libc/bionic/fdsan.cpp
+++ b/libc/bionic/fdsan.cpp
@@ -219,6 +219,8 @@
       return "ZipArchive";
     case ANDROID_FDSAN_OWNER_TYPE_NATIVE_HANDLE:
       return "native_handle_t";
+    case ANDROID_FDSAN_OWNER_TYPE_PARCEL:
+      return "Parcel";
 
     case ANDROID_FDSAN_OWNER_TYPE_GENERIC_00:
     default:
diff --git a/libc/bionic/fork.cpp b/libc/bionic/fork.cpp
index d432c6d..615e81f 100644
--- a/libc/bionic/fork.cpp
+++ b/libc/bionic/fork.cpp
@@ -50,11 +50,13 @@
   return result;
 }
 
+int _Fork() {
+  return __clone_for_fork();
+}
+
 int fork() {
   __bionic_atfork_run_prepare();
-
-  int result = __clone_for_fork();
-
+  int result = _Fork();
   if (result == 0) {
     // Disable fdsan and fdtrack post-fork, so we don't falsely trigger on processes that
     // fork, close all of their fds, and then exec.
diff --git a/libc/bionic/fortify.cpp b/libc/bionic/fortify.cpp
index 7dee5e3..80f7c20 100644
--- a/libc/bionic/fortify.cpp
+++ b/libc/bionic/fortify.cpp
@@ -99,8 +99,8 @@
 }
 
 size_t __fread_chk(void* buf, size_t size, size_t count, FILE* stream, size_t buf_size) {
-  size_t total;
-  if (__predict_false(__size_mul_overflow(size, count, &total))) {
+  unsigned long total;
+  if (__predict_false(__builtin_umull_overflow(size, count, &total))) {
     // overflow: trigger the error path in fread
     return fread(buf, size, count, stream);
   }
@@ -109,8 +109,8 @@
 }
 
 size_t __fwrite_chk(const void* buf, size_t size, size_t count, FILE* stream, size_t buf_size) {
-  size_t total;
-  if (__predict_false(__size_mul_overflow(size, count, &total))) {
+  unsigned long total;
+  if (__predict_false(__builtin_umull_overflow(size, count, &total))) {
     // overflow: trigger the error path in fwrite
     return fwrite(buf, size, count, stream);
   }
diff --git a/libc/bionic/getauxval.cpp b/libc/bionic/getauxval.cpp
index a3c6b19..e188d73 100644
--- a/libc/bionic/getauxval.cpp
+++ b/libc/bionic/getauxval.cpp
@@ -37,7 +37,9 @@
 
 // This function needs to be safe to call before TLS is set up, so it can't
 // access errno or the stack protector.
-__LIBC_HIDDEN__ unsigned long __bionic_getauxval(unsigned long type, bool* exists) {
+// Cannot use HWASan, as this is called during setup of the HWASan runtime to
+// determine the page size.
+__LIBC_HIDDEN__ unsigned long __bionic_getauxval(unsigned long type, bool* exists) __attribute__((no_sanitize("hwaddress"))) {
   for (ElfW(auxv_t)* v = __libc_shared_globals()->auxv; v->a_type != AT_NULL; ++v) {
     if (v->a_type == type) {
       *exists = true;
@@ -48,7 +50,9 @@
   return 0;
 }
 
-extern "C" unsigned long getauxval(unsigned long type) {
+// Cannot use HWASan, as this is called during setup of the HWASan runtime to
+// determine the page size.
+extern "C" unsigned long getauxval(unsigned long type) __attribute__((no_sanitize("hwaddress"))) {
   bool exists;
   unsigned long result = __bionic_getauxval(type, &exists);
   if (!exists) errno = ENOENT;
diff --git a/libc/bionic/getpagesize.cpp b/libc/bionic/getpagesize.cpp
index da97633..fbcabd8 100644
--- a/libc/bionic/getpagesize.cpp
+++ b/libc/bionic/getpagesize.cpp
@@ -29,7 +29,6 @@
 #include <unistd.h>
 #include "platform/bionic/page.h"
 
-// Portable code should use sysconf(_SC_PAGE_SIZE) directly instead.
 int getpagesize() {
   // We dont use sysconf(3) here because that drags in stdio, which makes static binaries fat.
   return page_size();
diff --git a/libc/bionic/gwp_asan_wrappers.cpp b/libc/bionic/gwp_asan_wrappers.cpp
index 251633d..2124f51 100644
--- a/libc/bionic/gwp_asan_wrappers.cpp
+++ b/libc/bionic/gwp_asan_wrappers.cpp
@@ -57,7 +57,7 @@
 static gwp_asan::GuardedPoolAllocator GuardedAlloc;
 static const MallocDispatch* prev_dispatch;
 
-using Action = android_mallopt_gwp_asan_options_t::Action;
+using Mode = android_mallopt_gwp_asan_options_t::Mode;
 using Options = gwp_asan::options::Options;
 
 // basename() is a mess, see the manpage. Let's be explicit what handling we
@@ -258,14 +258,14 @@
   options->Backtrace = android_unsafe_frame_pointer_chase;
   options->SampleRate = kDefaultSampleRate;
   options->MaxSimultaneousAllocations = kDefaultMaxAllocs;
+  options->Recoverable = true;
+  GwpAsanRecoverable = true;
 
-  *process_sample_rate = 1;
-  if (mallopt_options.desire == Action::TURN_ON_WITH_SAMPLING) {
+  if (mallopt_options.mode == Mode::SYSTEM_PROCESS_OR_SYSTEM_APP ||
+      mallopt_options.mode == Mode::APP_MANIFEST_DEFAULT) {
     *process_sample_rate = kDefaultProcessSampling;
-  } else if (mallopt_options.desire == Action::TURN_ON_FOR_APP_SAMPLED_NON_CRASHING) {
-    *process_sample_rate = kDefaultProcessSampling;
-    options->Recoverable = true;
-    GwpAsanRecoverable = true;
+  } else {
+    *process_sample_rate = 1;
   }
 }
 
@@ -285,7 +285,7 @@
   // be used. Tests still continue to use the environment variable though.
   if (*basename != '\0') {
     const char* default_sysprop = system_sysprop;
-    if (mallopt_options.desire == Action::TURN_ON_FOR_APP) {
+    if (mallopt_options.mode == Mode::APP_MANIFEST_ALWAYS) {
       default_sysprop = app_sysprop;
     }
     async_safe_format_buffer(&program_specific_sysprop[0], kSyspropMaxLen, "%s%s",
@@ -403,7 +403,7 @@
         /* default */ kDefaultMaxAllocs / frequency_multiplier;
   }
 
-  bool recoverable = false;
+  bool recoverable = true;
   if (GetGwpAsanBoolOption(&recoverable, mallopt_options, kRecoverableSystemSysprop,
                            kRecoverableAppSysprop, kRecoverableTargetedSyspropPrefix,
                            kRecoverableEnvVar, "recoverable")) {
@@ -425,7 +425,7 @@
   Options options;
   unsigned process_sample_rate = kDefaultProcessSampling;
   if (!GetGwpAsanOptions(&options, &process_sample_rate, mallopt_options) &&
-      mallopt_options.desire == Action::DONT_TURN_ON_UNLESS_OVERRIDDEN) {
+      mallopt_options.mode == Mode::APP_MANIFEST_NEVER) {
     return false;
   }
 
@@ -492,7 +492,7 @@
 
   android_mallopt_gwp_asan_options_t mallopt_options;
   mallopt_options.program_name = progname;
-  mallopt_options.desire = Action::TURN_ON_WITH_SAMPLING;
+  mallopt_options.mode = Mode::SYSTEM_PROCESS_OR_SYSTEM_APP;
 
   return MaybeInitGwpAsan(globals, mallopt_options);
 }
diff --git a/libc/bionic/heap_tagging.cpp b/libc/bionic/heap_tagging.cpp
index 0c1e506..6741be3 100644
--- a/libc/bionic/heap_tagging.cpp
+++ b/libc/bionic/heap_tagging.cpp
@@ -34,10 +34,16 @@
 #include <platform/bionic/malloc.h>
 #include <sanitizer/hwasan_interface.h>
 #include <sys/auxv.h>
+#include <sys/prctl.h>
 
 extern "C" void scudo_malloc_disable_memory_tagging();
 extern "C" void scudo_malloc_set_track_allocation_stacks(int);
 
+extern "C" const char* __scudo_get_stack_depot_addr();
+extern "C" const char* __scudo_get_ring_buffer_addr();
+extern "C" size_t __scudo_get_ring_buffer_size();
+extern "C" size_t __scudo_get_stack_depot_size();
+
 // Protected by `g_heap_tagging_lock`.
 static HeapTaggingLevel heap_tagging_level = M_HEAP_TAGGING_LEVEL_NONE;
 
@@ -47,6 +53,8 @@
   heap_tagging_level = __libc_shared_globals()->initial_heap_tagging_level;
 #endif
 
+  __libc_memtag_stack_abi = __libc_shared_globals()->initial_memtag_stack_abi;
+
   __libc_globals.mutate([](libc_globals* globals) {
     switch (heap_tagging_level) {
       case M_HEAP_TAGGING_LEVEL_TBI:
@@ -58,14 +66,14 @@
       case M_HEAP_TAGGING_LEVEL_SYNC:
       case M_HEAP_TAGGING_LEVEL_ASYNC:
         atomic_store(&globals->memtag, true);
-        atomic_store(&globals->memtag_stack, __libc_shared_globals()->initial_memtag_stack);
+        atomic_store(&__libc_memtag_stack, __libc_shared_globals()->initial_memtag_stack);
         break;
       default:
         break;
     };
   });
 
-#if defined(USE_SCUDO)
+#if defined(USE_SCUDO) && !__has_feature(hwaddress_sanitizer)
   switch (heap_tagging_level) {
     case M_HEAP_TAGGING_LEVEL_TBI:
     case M_HEAP_TAGGING_LEVEL_NONE:
@@ -113,7 +121,7 @@
           // tagged and checks no longer happen.
           globals->heap_pointer_tag = static_cast<uintptr_t>(0xffull << UNTAG_SHIFT);
         }
-        atomic_store(&globals->memtag_stack, false);
+        atomic_store(&__libc_memtag_stack, false);
         atomic_store(&globals->memtag, false);
       });
 
@@ -123,7 +131,7 @@
           return false;
         }
       }
-#if defined(USE_SCUDO)
+#if defined(USE_SCUDO) && !__has_feature(hwaddress_sanitizer)
       scudo_malloc_disable_memory_tagging();
 #endif
       break;
@@ -151,13 +159,17 @@
         if (!set_tcf_on_all_threads(PR_MTE_TCF_ASYNC | PR_MTE_TCF_SYNC)) {
           set_tcf_on_all_threads(PR_MTE_TCF_ASYNC);
         }
-#if defined(USE_SCUDO)
+#if defined(USE_SCUDO) && !__has_feature(hwaddress_sanitizer)
         scudo_malloc_set_track_allocation_stacks(0);
 #endif
       } else if (tag_level == M_HEAP_TAGGING_LEVEL_SYNC) {
         set_tcf_on_all_threads(PR_MTE_TCF_SYNC);
-#if defined(USE_SCUDO)
+#if defined(USE_SCUDO) && !__has_feature(hwaddress_sanitizer)
         scudo_malloc_set_track_allocation_stacks(1);
+        __libc_shared_globals()->scudo_ring_buffer = __scudo_get_ring_buffer_addr();
+        __libc_shared_globals()->scudo_ring_buffer_size = __scudo_get_ring_buffer_size();
+        __libc_shared_globals()->scudo_stack_depot = __scudo_get_stack_depot_addr();
+        __libc_shared_globals()->scudo_stack_depot_size = __scudo_get_stack_depot_size();
 #endif
       }
       break;
@@ -174,6 +186,9 @@
 
 #ifdef __aarch64__
 static inline __attribute__((no_sanitize("memtag"))) void untag_memory(void* from, void* to) {
+  if (from == to) {
+    return;
+  }
   __asm__ __volatile__(
       ".arch_extension mte\n"
       "1:\n"
@@ -192,17 +207,29 @@
 #endif  // __aarch64__
 
 extern "C" __LIBC_HIDDEN__ __attribute__((no_sanitize("memtag"))) void memtag_handle_longjmp(
-    void* sp_dst __unused) {
+    void* sp_dst __unused, void* sp_src __unused) {
+  // A usual longjmp looks like this, where sp_dst was the LR in the call to setlongjmp (i.e.
+  // the SP of the frame calling setlongjmp).
+  // ┌─────────────────────┐                  │
+  // │                     │                  │
+  // ├─────────────────────┤◄──────── sp_dst  │ stack
+  // │         ...         │                  │ grows
+  // ├─────────────────────┤                  │ to lower
+  // │         ...         │                  │ addresses
+  // ├─────────────────────┤◄──────── sp_src  │
+  // │siglongjmp           │                  │
+  // ├─────────────────────┤                  │
+  // │memtag_handle_longjmp│                  │
+  // └─────────────────────┘                  ▼
 #ifdef __aarch64__
-  if (__libc_globals->memtag_stack) {
-    void* sp = __builtin_frame_address(0);
-    size_t distance = reinterpret_cast<uintptr_t>(sp_dst) - reinterpret_cast<uintptr_t>(sp);
+  if (atomic_load(&__libc_memtag_stack)) {
+    size_t distance = reinterpret_cast<uintptr_t>(sp_dst) - reinterpret_cast<uintptr_t>(sp_src);
     if (distance > kUntagLimit) {
       async_safe_fatal(
-          "memtag_handle_longjmp: stack adjustment too large! %p -> %p, distance %zx > %zx\n", sp,
-          sp_dst, distance, kUntagLimit);
+          "memtag_handle_longjmp: stack adjustment too large! %p -> %p, distance %zx > %zx\n",
+          sp_src, sp_dst, distance, kUntagLimit);
     } else {
-      untag_memory(sp, sp_dst);
+      untag_memory(sp_src, sp_dst);
     }
   }
 #endif  // __aarch64__
diff --git a/libc/bionic/icu_static.cpp b/libc/bionic/icu_static.cpp
index e81e291..cf24a38 100644
--- a/libc/bionic/icu_static.cpp
+++ b/libc/bionic/icu_static.cpp
@@ -29,6 +29,6 @@
 #include "private/icu.h"
 
 // We don't have dlopen/dlsym for static binaries yet.
-__attribute__((weak)) void* __find_icu_symbol(const char*) {
+void* __find_icu_symbol(const char*) {
   return nullptr;
 }
diff --git a/libc/bionic/jemalloc_wrapper.cpp b/libc/bionic/jemalloc_wrapper.cpp
index a2bb1db..1bbdb29 100644
--- a/libc/bionic/jemalloc_wrapper.cpp
+++ b/libc/bionic/jemalloc_wrapper.cpp
@@ -77,9 +77,13 @@
 int je_mallopt(int param, int value) {
   // The only parameter we currently understand is M_DECAY_TIME.
   if (param == M_DECAY_TIME) {
-    // Only support setting the value to 1 or 0.
+    // Only support setting the value to -1 or 0 or 1.
     ssize_t decay_time_ms;
-    if (value) {
+    if (value < 0) {
+      // Given that SSIZE_MAX may not be supported in jemalloc, set this to a
+      // sufficiently large number that essentially disables the decay timer.
+      decay_time_ms = 10000000;
+    } else if (value) {
       decay_time_ms = 1000;
     } else {
       decay_time_ms = 0;
diff --git a/libc/bionic/legacy_32_bit_support.cpp b/libc/bionic/legacy_32_bit_support.cpp
index 41108e6..4e19ebf 100644
--- a/libc/bionic/legacy_32_bit_support.cpp
+++ b/libc/bionic/legacy_32_bit_support.cpp
@@ -31,23 +31,28 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <stdarg.h>
+#include <stdint.h>
+#include <sys/mman.h>
 #include <sys/resource.h>
 #include <sys/types.h>
-#include <sys/uio.h>
-#include <sys/vfs.h>
 #include <unistd.h>
 
+#include "platform/bionic/macros.h"
+#include "platform/bionic/page.h"
+#include "private/ErrnoRestorer.h"
 #include "private/bionic_fdtrack.h"
 
 #if defined(__LP64__)
 #error This code is only needed on 32-bit systems!
 #endif
 
-// System calls we need.
+// To implement lseek64() on ILP32, we need to use the _llseek() system call
+// which splits the off64_t into two 32-bit arguments and returns the off64_t
+// result via a pointer because 32-bit kernels can't accept 64-bit arguments
+// or return 64-bit results. (Our symbol is __llseek with two underscores for
+// historical reasons, but it's exposed as ABI so we can't fix it.)
 extern "C" int __llseek(int, unsigned long, unsigned long, off64_t*, int);
 
-// For lseek64 we need to use the llseek system call which splits the off64_t in two and
-// returns the off64_t result via a pointer because 32-bit kernels can't return 64-bit results.
 off64_t lseek64(int fd, off64_t off, int whence) {
   off64_t result;
   unsigned long off_hi = static_cast<unsigned long>(off >> 32);
@@ -101,3 +106,58 @@
   }
   return result;
 }
+
+// mmap2(2) is like mmap(2), but the offset is in 4096-byte blocks (regardless
+// of page size), not bytes, to enable mapping parts of large files past the
+// 4GiB limit but without the inconvenience of dealing with 64-bit values, with
+// no down side since mappings need to be page aligned anyway, and the 32-bit
+// architectures that support this system call all have 4KiB pages.
+extern "C" void* __mmap2(void*, size_t, int, int, int, size_t);
+
+void* mmap64(void* addr, size_t size, int prot, int flags, int fd, off64_t offset) {
+  static constexpr size_t MMAP2_SHIFT = 12;
+
+  if (offset < 0 || (offset & ((1UL << MMAP2_SHIFT) - 1)) != 0) {
+    errno = EINVAL;
+    return MAP_FAILED;
+  }
+
+  // Prevent allocations large enough for `end - start` to overflow,
+  // to avoid security bugs.
+  size_t rounded = __BIONIC_ALIGN(size, page_size());
+  if (rounded < size || rounded > PTRDIFF_MAX) {
+    errno = ENOMEM;
+    return MAP_FAILED;
+  }
+
+  return __mmap2(addr, size, prot, flags, fd, offset >> MMAP2_SHIFT);
+}
+
+void* mmap(void* addr, size_t size, int prot, int flags, int fd, off_t offset) {
+  return mmap64(addr, size, prot, flags, fd, static_cast<off64_t>(offset));
+}
+
+// The only difference here is that the libc API uses varargs for the
+// optional `new_address` argument that's only used by MREMAP_FIXED.
+extern "C" void* __mremap(void*, size_t, size_t, int, void*);
+
+void* mremap(void* old_address, size_t old_size, size_t new_size, int flags, ...) {
+  // Prevent allocations large enough for `end - start` to overflow,
+  // to avoid security bugs.
+  size_t rounded = __BIONIC_ALIGN(new_size, page_size());
+  if (rounded < new_size || rounded > PTRDIFF_MAX) {
+    errno = ENOMEM;
+    return MAP_FAILED;
+  }
+
+  // The optional argument is only valid if the MREMAP_FIXED flag is set,
+  // so we assume it's not present otherwise.
+  void* new_address = nullptr;
+  if ((flags & MREMAP_FIXED) != 0) {
+    va_list ap;
+    va_start(ap, flags);
+    new_address = va_arg(ap, void*);
+    va_end(ap);
+  }
+  return __mremap(old_address, old_size, new_size, flags, new_address);
+}
diff --git a/libc/bionic/libc_init_common.cpp b/libc/bionic/libc_init_common.cpp
index 8c1e7ec..8c7a49b 100644
--- a/libc/bionic/libc_init_common.cpp
+++ b/libc/bionic/libc_init_common.cpp
@@ -57,6 +57,8 @@
 extern "C" void scudo_malloc_set_pattern_fill_contents(int);
 
 __LIBC_HIDDEN__ constinit WriteProtected<libc_globals> __libc_globals;
+__LIBC_HIDDEN__ constinit _Atomic(bool) __libc_memtag_stack;
+__LIBC_HIDDEN__ constinit bool __libc_memtag_stack_abi;
 
 // Not public, but well-known in the BSDs.
 __BIONIC_WEAK_VARIABLE_FOR_NATIVE_BRIDGE
@@ -98,8 +100,10 @@
 #if !defined(__LP64__)
 static void __check_max_thread_id() {
   if (gettid() > 65535) {
-    async_safe_fatal("Limited by the size of pthread_mutex_t, 32 bit bionic libc only accepts "
-                     "pid <= 65535, but current pid is %d", gettid());
+    async_safe_fatal("32-bit pthread_mutex_t only supports pids <= 65535; "
+                     "current pid %d; "
+                     "`echo 65535 > /proc/sys/kernel/pid_max` as root",
+                     gettid());
   }
 }
 #endif
@@ -117,7 +121,7 @@
   SetDefaultHeapTaggingLevel();
 
 // TODO(b/158870657) make this unconditional when all devices support SCUDO.
-#if defined(USE_SCUDO)
+#if defined(USE_SCUDO) && !__has_feature(hwaddress_sanitizer)
 #if defined(SCUDO_PATTERN_FILL_CONTENTS)
   scudo_malloc_set_pattern_fill_contents(1);
 #elif defined(SCUDO_ZERO_CONTENTS)
@@ -207,7 +211,7 @@
 extern "C" void scudo_malloc_set_add_large_allocation_slack(int add_slack);
 
 __BIONIC_WEAK_FOR_NATIVE_BRIDGE void __libc_set_target_sdk_version(int target __unused) {
-#if defined(USE_SCUDO)
+#if defined(USE_SCUDO) && !__has_feature(hwaddress_sanitizer)
   scudo_malloc_set_add_large_allocation_slack(target < __ANDROID_API_S__);
 #endif
 }
diff --git a/libc/bionic/libc_init_dynamic.cpp b/libc/bionic/libc_init_dynamic.cpp
index 1180a51..541e71c 100644
--- a/libc/bionic/libc_init_dynamic.cpp
+++ b/libc/bionic/libc_init_dynamic.cpp
@@ -61,8 +61,9 @@
 };
 
 void memtag_stack_dlopen_callback() {
-  async_safe_format_log(ANDROID_LOG_INFO, "libc", "remapping stacks as PROT_MTE");
-  __pthread_internal_remap_stack_with_mte();
+  if (__pthread_internal_remap_stack_with_mte()) {
+    async_safe_format_log(ANDROID_LOG_DEBUG, "libc", "remapped stacks as PROT_MTE");
+  }
 }
 
 // Use an initializer so __libc_sysinfo will have a fallback implementation
diff --git a/libc/bionic/libc_init_static.cpp b/libc/bionic/libc_init_static.cpp
index f091ff8..ac97376 100644
--- a/libc/bionic/libc_init_static.cpp
+++ b/libc/bionic/libc_init_static.cpp
@@ -138,9 +138,9 @@
   static TlsModule mod;
   TlsModules& modules = __libc_shared_globals()->tls_modules;
   if (__bionic_get_tls_segment(phdr_start, phdr_ct, 0, &mod.segment)) {
-    if (!__bionic_check_tls_alignment(&mod.segment.alignment)) {
+    if (!__bionic_check_tls_align(mod.segment.aligned_size.align.value)) {
       async_safe_fatal("error: TLS segment alignment in \"%s\" is not a power of 2: %zu\n",
-                       progname, mod.segment.alignment);
+                       progname, mod.segment.aligned_size.align.value);
     }
     mod.static_offset = layout.reserve_exe_segment_and_tcb(&mod.segment, progname);
     mod.first_generation = kTlsGenerationFirst;
@@ -289,12 +289,32 @@
 
   // We can't short-circuit the environment override, as `stack` is still inherited from the
   // binary's settings.
-  if (get_environment_memtag_setting(&level)) {
-    if (level == M_HEAP_TAGGING_LEVEL_NONE || level == M_HEAP_TAGGING_LEVEL_TBI) {
-      *stack = false;
+  get_environment_memtag_setting(&level);
+  return level;
+}
+
+static int64_t __get_memtag_upgrade_secs() {
+  char* env = getenv("BIONIC_MEMTAG_UPGRADE_SECS");
+  if (!env) return 0;
+  int64_t timed_upgrade = 0;
+  static const char kAppProcessName[] = "app_process64";
+  const char* progname = __libc_shared_globals()->init_progname;
+  progname = progname ? __gnu_basename(progname) : nullptr;
+  // disable timed upgrade for zygote, as the thread spawned will violate the requirement
+  // that it be single-threaded.
+  if (!progname || strncmp(progname, kAppProcessName, sizeof(kAppProcessName)) != 0) {
+    char* endptr;
+    timed_upgrade = strtoll(env, &endptr, 10);
+    if (*endptr != '\0' || timed_upgrade < 0) {
+      async_safe_format_log(ANDROID_LOG_ERROR, "libc",
+                            "Invalid value for BIONIC_MEMTAG_UPGRADE_SECS: %s", env);
+      timed_upgrade = 0;
     }
   }
-  return level;
+  // Make sure that this does not get passed to potential processes inheriting
+  // this environment.
+  unsetenv("BIONIC_MEMTAG_UPGRADE_SECS");
+  return timed_upgrade;
 }
 
 // Figure out the desired memory tagging mode (sync/async, heap/globals/stack) for this executable.
@@ -305,39 +325,16 @@
   bool memtag_stack = false;
   HeapTaggingLevel level =
       __get_tagging_level(memtag_dynamic_entries, phdr_start, phdr_ct, load_bias, &memtag_stack);
-  // This is used by the linker (in linker.cpp) to communicate than any library linked by this
-  // executable enables memtag-stack.
-  if (__libc_shared_globals()->initial_memtag_stack) {
-    if (!memtag_stack) {
-      async_safe_format_log(ANDROID_LOG_INFO, "libc", "enabling PROT_MTE as requested by linker");
-    }
+  // initial_memtag_stack is used by the linker (in linker.cpp) to communicate than any library
+  // linked by this executable enables memtag-stack.
+  // memtag_stack is also set for static executables if they request memtag stack via the note,
+  // in which case it will differ from initial_memtag_stack.
+  if (__libc_shared_globals()->initial_memtag_stack || memtag_stack) {
     memtag_stack = true;
+    __libc_shared_globals()->initial_memtag_stack_abi = true;
+    __get_bionic_tcb()->tls_slot(TLS_SLOT_STACK_MTE) = __allocate_stack_mte_ringbuffer(0, nullptr);
   }
-  char* env = getenv("BIONIC_MEMTAG_UPGRADE_SECS");
-  static const char kAppProcessName[] = "app_process64";
-  const char* progname = __libc_shared_globals()->init_progname;
-  progname = progname ? __gnu_basename(progname) : nullptr;
-  if (progname &&
-      strncmp(progname, kAppProcessName, sizeof(kAppProcessName)) == 0) {
-    // disable timed upgrade for zygote, as the thread spawned will violate the requirement
-    // that it be single-threaded.
-    env = nullptr;
-  }
-  int64_t timed_upgrade = 0;
-  if (env) {
-    char* endptr;
-    timed_upgrade = strtoll(env, &endptr, 10);
-    if (*endptr != '\0' || timed_upgrade < 0) {
-      async_safe_format_log(ANDROID_LOG_ERROR, "libc",
-                            "Invalid value for BIONIC_MEMTAG_UPGRADE_SECS: %s",
-                            env);
-      timed_upgrade = 0;
-    }
-    // Make sure that this does not get passed to potential processes inheriting
-    // this environment.
-    unsetenv("BIONIC_MEMTAG_UPGRADE_SECS");
-  }
-  if (timed_upgrade) {
+  if (int64_t timed_upgrade = __get_memtag_upgrade_secs()) {
     if (level == M_HEAP_TAGGING_LEVEL_ASYNC) {
       async_safe_format_log(ANDROID_LOG_INFO, "libc",
                             "Attempting timed MTE upgrade from async to sync.");
diff --git a/libc/bionic/locale.cpp b/libc/bionic/locale.cpp
index 2f4d206..a1d6909 100644
--- a/libc/bionic/locale.cpp
+++ b/libc/bionic/locale.cpp
@@ -35,17 +35,8 @@
 #include <time.h>
 #include <wchar.h>
 
-#include "platform/bionic/macros.h"
-
-#if defined(__BIONIC_BUILD_FOR_ANDROID_SUPPORT)
-#define USE_TLS_SLOT 0
-#else
-#define USE_TLS_SLOT 1
-#endif
-
-#if USE_TLS_SLOT
 #include "bionic/pthread_internal.h"
-#endif
+#include "platform/bionic/macros.h"
 
 // We only support two locales, the "C" locale (also known as "POSIX"),
 // and the "C.UTF-8" locale (also known as "en_US.UTF-8").
@@ -82,10 +73,6 @@
   return get_locale_mb_cur_max(uselocale(nullptr));
 }
 
-#if !USE_TLS_SLOT
-static thread_local locale_t g_current_locale;
-#endif
-
 static pthread_once_t g_locale_once = PTHREAD_ONCE_INIT;
 static lconv g_locale;
 
@@ -180,11 +167,7 @@
 }
 
 static locale_t* get_current_locale_ptr() {
-#if USE_TLS_SLOT
   return &__get_bionic_tls().locale;
-#else
-  return &g_current_locale;
-#endif
 }
 
 locale_t uselocale(locale_t new_locale) {
diff --git a/libc/bionic/malloc_common.cpp b/libc/bionic/malloc_common.cpp
index 3c4884b..596a1fc 100644
--- a/libc/bionic/malloc_common.cpp
+++ b/libc/bionic/malloc_common.cpp
@@ -123,7 +123,7 @@
   // Track the M_DECAY_TIME mallopt calls.
   if (param == M_DECAY_TIME && retval == 1) {
     __libc_globals.mutate([value](libc_globals* globals) {
-      if (value == 0) {
+      if (value <= 0) {
         atomic_store(&globals->decay_time_enabled, false);
       } else {
         atomic_store(&globals->decay_time_enabled, true);
@@ -353,7 +353,7 @@
       errno = EINVAL;
       return false;
     }
-    *reinterpret_cast<bool*>(arg) = atomic_load(&__libc_globals->memtag_stack);
+    *reinterpret_cast<bool*>(arg) = atomic_load(&__libc_memtag_stack);
     return true;
   }
   if (opcode == M_GET_DECAY_TIME_ENABLED) {
diff --git a/libc/bionic/malloc_common_dynamic.cpp b/libc/bionic/malloc_common_dynamic.cpp
index a6bf7a7..6db6251 100644
--- a/libc/bionic/malloc_common_dynamic.cpp
+++ b/libc/bionic/malloc_common_dynamic.cpp
@@ -381,7 +381,7 @@
 
   MaybeInitGwpAsanFromLibc(globals);
 
-#if defined(USE_SCUDO)
+#if defined(USE_SCUDO) && !__has_feature(hwaddress_sanitizer)
   __libc_shared_globals()->scudo_stack_depot = __scudo_get_stack_depot_addr();
   __libc_shared_globals()->scudo_region_info = __scudo_get_region_info_addr();
   __libc_shared_globals()->scudo_ring_buffer = __scudo_get_ring_buffer_addr();
@@ -542,7 +542,7 @@
       errno = EINVAL;
       return false;
     }
-    *reinterpret_cast<bool*>(arg) = atomic_load(&__libc_globals->memtag_stack);
+    *reinterpret_cast<bool*>(arg) = atomic_load(&__libc_memtag_stack);
     return true;
   }
   if (opcode == M_GET_DECAY_TIME_ENABLED) {
diff --git a/libc/bionic/malloc_limit.cpp b/libc/bionic/malloc_limit.cpp
index deb63f4..5128a35 100644
--- a/libc/bionic/malloc_limit.cpp
+++ b/libc/bionic/malloc_limit.cpp
@@ -31,6 +31,7 @@
 #include <stdatomic.h>
 #include <stdint.h>
 #include <stdio.h>
+#include <unistd.h>
 
 #include <private/bionic_malloc_dispatch.h>
 
diff --git a/libc/bionic/mmap.cpp b/libc/bionic/mmap.cpp
deleted file mode 100644
index f05dcb8..0000000
--- a/libc/bionic/mmap.cpp
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <errno.h>
-#include <stdint.h>
-#include <sys/mman.h>
-#include <unistd.h>
-
-#include "platform/bionic/macros.h"
-#include "platform/bionic/page.h"
-#include "private/ErrnoRestorer.h"
-
-// mmap2(2) is like mmap(2), but the offset is in 4096-byte blocks, not bytes.
-extern "C" void*  __mmap2(void*, size_t, int, int, int, size_t);
-
-#define MMAP2_SHIFT 12 // 2**12 == 4096
-
-void* mmap64(void* addr, size_t size, int prot, int flags, int fd, off64_t offset) {
-  if (offset < 0 || (offset & ((1UL << MMAP2_SHIFT)-1)) != 0) {
-    errno = EINVAL;
-    return MAP_FAILED;
-  }
-
-  // Prevent allocations large enough for `end - start` to overflow.
-  size_t rounded = __BIONIC_ALIGN(size, page_size());
-  if (rounded < size || rounded > PTRDIFF_MAX) {
-    errno = ENOMEM;
-    return MAP_FAILED;
-  }
-
-  return __mmap2(addr, size, prot, flags, fd, offset >> MMAP2_SHIFT);
-}
-
-void* mmap(void* addr, size_t size, int prot, int flags, int fd, off_t offset) {
-  return mmap64(addr, size, prot, flags, fd, static_cast<off64_t>(offset));
-}
diff --git a/libc/bionic/mremap.cpp b/libc/bionic/mremap.cpp
deleted file mode 100644
index 88ec829..0000000
--- a/libc/bionic/mremap.cpp
+++ /dev/null
@@ -1,58 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <errno.h>
-#include <sys/mman.h>
-#include <stdarg.h>
-#include <stdint.h>
-#include <unistd.h>
-
-#include "platform/bionic/macros.h"
-#include "platform/bionic/page.h"
-
-extern "C" void* __mremap(void*, size_t, size_t, int, void*);
-
-void* mremap(void* old_address, size_t old_size, size_t new_size, int flags, ...) {
-  // prevent allocations large enough for `end - start` to overflow
-  size_t rounded = __BIONIC_ALIGN(new_size, page_size());
-  if (rounded < new_size || rounded > PTRDIFF_MAX) {
-    errno = ENOMEM;
-    return MAP_FAILED;
-  }
-
-  void* new_address = nullptr;
-  // The optional argument is only valid if the MREMAP_FIXED flag is set,
-  // so we assume it's not present otherwise.
-  if ((flags & MREMAP_FIXED) != 0) {
-    va_list ap;
-    va_start(ap, flags);
-    new_address = va_arg(ap, void*);
-    va_end(ap);
-  }
-  return __mremap(old_address, old_size, new_size, flags, new_address);
-}
diff --git a/libc/bionic/netinet_ether.cpp b/libc/bionic/netinet_ether.cpp
new file mode 100644
index 0000000..7ebceac
--- /dev/null
+++ b/libc/bionic/netinet_ether.cpp
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <netinet/ether.h>
+
+#include <stdio.h>
+
+ether_addr* ether_aton_r(const char* asc, ether_addr* addr) {
+  int bytes[ETHER_ADDR_LEN], end;
+  int n = sscanf(asc, "%x:%x:%x:%x:%x:%x%n",
+                 &bytes[0], &bytes[1], &bytes[2],
+                 &bytes[3], &bytes[4], &bytes[5], &end);
+  if (n != ETHER_ADDR_LEN || asc[end] != '\0') return NULL;
+  for (int i = 0; i < ETHER_ADDR_LEN; i++) {
+    if (bytes[i] > 0xff) return NULL;
+    addr->ether_addr_octet[i] = bytes[i];
+  }
+  return addr;
+}
+
+struct ether_addr* ether_aton(const char* asc) {
+  static ether_addr addr;
+  return ether_aton_r(asc, &addr);
+}
+
+char* ether_ntoa_r(const ether_addr* addr, char* buf) {
+  snprintf(buf, 18, "%02x:%02x:%02x:%02x:%02x:%02x",
+           addr->ether_addr_octet[0], addr->ether_addr_octet[1],
+           addr->ether_addr_octet[2], addr->ether_addr_octet[3],
+           addr->ether_addr_octet[4], addr->ether_addr_octet[5]);
+  return buf;
+}
+
+char* ether_ntoa(const ether_addr* addr) {
+  static char buf[18];
+  return ether_ntoa_r(addr, buf);
+}
diff --git a/libc/bionic/new.cpp b/libc/bionic/new.cpp
index c9ce163..5a6acc0 100644
--- a/libc/bionic/new.cpp
+++ b/libc/bionic/new.cpp
@@ -16,13 +16,14 @@
 
 #include <new>
 
-#include <errno.h>
 #include <stdlib.h>
 
 #include <async_safe/log.h>
 
 __attribute__((weak)) const std::nothrow_t std::nothrow = {};
 
+// We can't throw in bionic, so we go straight to the equivalent of
+// std::terminate for these two instead.
 void* operator new(std::size_t size) {
     void* p = malloc(size);
     if (p == nullptr) {
@@ -30,7 +31,6 @@
     }
     return p;
 }
-
 void* operator new[](std::size_t size) {
     void* p = malloc(size);
     if (p == nullptr) {
@@ -39,26 +39,21 @@
     return p;
 }
 
-void  operator delete(void* ptr) throw() {
-    free(ptr);
-}
-
-void  operator delete[](void* ptr) throw() {
-    free(ptr);
-}
-
+// These two are the "nothrow" variants, so we just return nullptr on failure.
 void* operator new(std::size_t size, const std::nothrow_t&) {
     return malloc(size);
 }
-
 void* operator new[](std::size_t size, const std::nothrow_t&) {
     return malloc(size);
 }
 
-void  operator delete(void* ptr, const std::nothrow_t&) throw() {
-    free(ptr);
-}
+// free() can't throw anyway (except on heap corruption, which is always fatal),
+// so there's no difference between the regular and "nothrow" variants here.
+void operator delete(void* p) noexcept { free(p); }
+void operator delete[](void* p) noexcept { free(p); }
+void operator delete(void* p, const std::nothrow_t&) noexcept { free(p); }
+void operator delete[](void* p, const std::nothrow_t&) noexcept { free(p); }
 
-void  operator delete[](void* ptr, const std::nothrow_t&) throw() {
-    free(ptr);
-}
+// TODO: these can use free_sized() once we have it (http://b/284321795).
+void operator delete(void* p, std::size_t) noexcept { free(p); }
+void operator delete[](void* p, std::size_t) noexcept { free(p); }
diff --git a/libc/bionic/pathconf.cpp b/libc/bionic/pathconf.cpp
index 9724f44..9bbecc3 100644
--- a/libc/bionic/pathconf.cpp
+++ b/libc/bionic/pathconf.cpp
@@ -107,14 +107,6 @@
     case _PC_REC_MIN_XFER_SIZE:
       return s.f_bsize;
 
-#if 0
-    case _PC_REC_INCR_XFER_SIZE:
-    case _PC_REC_MAX_XFER_SIZE:
-#endif
-
-    case _PC_SYMLINK_MAX:
-      return -1; /* no limit */
-
     case _PC_CHOWN_RESTRICTED:
       return _POSIX_CHOWN_RESTRICTED;
 
@@ -125,12 +117,15 @@
       return _POSIX_VDISABLE;
 
     case _PC_ASYNC_IO:
-      return -1;
-
     case _PC_PRIO_IO:
-      return -1;
-
+    case _PC_REC_INCR_XFER_SIZE:
+    case _PC_REC_MAX_XFER_SIZE:
+    case _PC_SYMLINK_MAX:
     case _PC_SYNC_IO:
+      // No API to answer these: the caller will have to "try it and see".
+      // This differs from the next case in not setting errno to EINVAL,
+      // since we did understand the question --- we just don't have a
+      // good answer.
       return -1;
 
     default:
diff --git a/libc/bionic/posix_timers.cpp b/libc/bionic/posix_timers.cpp
index f522516..ccbbfcf 100644
--- a/libc/bionic/posix_timers.cpp
+++ b/libc/bionic/posix_timers.cpp
@@ -34,6 +34,8 @@
 #include <string.h>
 #include <time.h>
 
+#include "private/bionic_lock.h"
+
 // System calls.
 extern "C" int __rt_sigprocmask(int, const sigset64_t*, sigset64_t*, size_t);
 extern "C" int __rt_sigtimedwait(const sigset64_t*, siginfo_t*, const timespec*, size_t);
@@ -60,6 +62,7 @@
   int sigev_notify;
 
   // The fields below are only needed for a SIGEV_THREAD timer.
+  Lock startup_handshake_lock;
   pthread_t callback_thread;
   void (*callback)(sigval_t);
   sigval_t callback_argument;
@@ -73,6 +76,18 @@
 static void* __timer_thread_start(void* arg) {
   PosixTimer* timer = reinterpret_cast<PosixTimer*>(arg);
 
+  // Check that our parent managed to create the kernel timer and bail if not...
+  timer->startup_handshake_lock.lock();
+  if (timer->kernel_timer_id == -1) {
+    free(timer);
+    return nullptr;
+  }
+
+  // Give ourselves a specific meaningful name now we have a kernel timer.
+  char name[16]; // 16 is the kernel-imposed limit.
+  snprintf(name, sizeof(name), "POSIX timer %d", to_kernel_timer_id(timer));
+  pthread_setname_np(timer->callback_thread, name);
+
   sigset64_t sigset = {};
   sigaddset64(&sigset, TIMER_SIGNAL);
 
@@ -109,6 +124,7 @@
     return -1;
   }
 
+  timer->kernel_timer_id = -1;
   timer->sigev_notify = (evp == nullptr) ? SIGEV_SIGNAL : evp->sigev_notify;
 
   // If not a SIGEV_THREAD timer, the kernel can handle it without our help.
@@ -149,6 +165,10 @@
   sigaddset64(&sigset, TIMER_SIGNAL);
   sigset64_t old_sigset;
 
+  // Prevent the child thread from running until the timer has been created.
+  timer->startup_handshake_lock.init(false);
+  timer->startup_handshake_lock.lock();
+
   // Use __rt_sigprocmask instead of sigprocmask64 to avoid filtering out TIMER_SIGNAL.
   __rt_sigprocmask(SIG_BLOCK, &sigset, &old_sigset, sizeof(sigset));
 
@@ -162,21 +182,21 @@
     return -1;
   }
 
+  // Try to create the kernel timer.
   sigevent se = *evp;
   se.sigev_signo = TIMER_SIGNAL;
   se.sigev_notify = SIGEV_THREAD_ID;
   se.sigev_notify_thread_id = pthread_gettid_np(timer->callback_thread);
-  if (__timer_create(clock_id, &se, &timer->kernel_timer_id) == -1) {
-    __timer_thread_stop(timer);
+  rc = __timer_create(clock_id, &se, &timer->kernel_timer_id);
+
+  // Let the child run (whether we created the kernel timer or not).
+  timer->startup_handshake_lock.unlock();
+  // If __timer_create(2) failed, the child will kill itself and free the
+  // timer struct, so we just need to exit.
+  if (rc == -1) {
     return -1;
   }
 
-  // Give the thread a specific meaningful name.
-  // It can't do this itself because the kernel timer isn't created until after it's running.
-  char name[16]; // 16 is the kernel-imposed limit.
-  snprintf(name, sizeof(name), "POSIX timer %d", to_kernel_timer_id(timer));
-  pthread_setname_np(timer->callback_thread, name);
-
   *timer_id = timer;
   return 0;
 }
diff --git a/libc/bionic/pthread_create.cpp b/libc/bionic/pthread_create.cpp
index 194db18..a8d09eb 100644
--- a/libc/bionic/pthread_create.cpp
+++ b/libc/bionic/pthread_create.cpp
@@ -65,6 +65,7 @@
 }
 
 void __init_bionic_tls_ptrs(bionic_tcb* tcb, bionic_tls* tls) {
+  tcb->thread()->bionic_tcb = tcb;
   tcb->thread()->bionic_tls = tls;
   tcb->tls_slot(TLS_SLOT_BIONIC_TLS) = tls;
 }
@@ -91,7 +92,7 @@
   // Create and set an alternate signal stack.
   int prot = PROT_READ | PROT_WRITE;
 #ifdef __aarch64__
-  if (atomic_load(&__libc_globals->memtag_stack)) {
+  if (atomic_load(&__libc_memtag_stack)) {
     prot |= PROT_MTE;
   }
 #endif
@@ -237,7 +238,7 @@
   int prot = PROT_READ | PROT_WRITE;
   const char* prot_str = "R+W";
 #ifdef __aarch64__
-  if (atomic_load(&__libc_globals->memtag_stack)) {
+  if (atomic_load(&__libc_memtag_stack)) {
     prot |= PROT_MTE;
     prot_str = "R+W+MTE";
   }
@@ -443,6 +444,14 @@
 
   ScopedReadLock locker(&g_thread_creation_lock);
 
+// This has to be done under g_thread_creation_lock or g_thread_list_lock to avoid racing with
+// __pthread_internal_remap_stack_with_mte.
+#ifdef __aarch64__
+  if (__libc_memtag_stack_abi) {
+    tcb->tls_slot(TLS_SLOT_STACK_MTE) = __allocate_stack_mte_ringbuffer(0, thread);
+  }
+#endif
+
   sigset64_t block_all_mask;
   sigfillset64(&block_all_mask);
   __rt_sigprocmask(SIG_SETMASK, &block_all_mask, &thread->start_mask, sizeof(thread->start_mask));
diff --git a/libc/bionic/pthread_exit.cpp b/libc/bionic/pthread_exit.cpp
index f584b27..0181aba 100644
--- a/libc/bionic/pthread_exit.cpp
+++ b/libc/bionic/pthread_exit.cpp
@@ -133,20 +133,17 @@
 
     // pthread_internal_t is freed below with stack, not here.
     __pthread_internal_remove(thread);
-
-    if (thread->mmap_size != 0) {
-      // We need to free mapped space for detached threads when they exit.
-      // That's not something we can do in C.
-      __notify_thread_exit_callbacks();
-      __hwasan_thread_exit();
-      _exit_with_stack_teardown(thread->mmap_base, thread->mmap_size);
-    }
   }
 
-  // No need to free mapped space. Either there was no space mapped, or it is left for
-  // the pthread_join caller to clean up.
   __notify_thread_exit_callbacks();
   __hwasan_thread_exit();
 
+  if (old_state == THREAD_DETACHED && thread->mmap_size != 0) {
+    // We need to free mapped space for detached threads when they exit.
+    // That's not something we can do in C.
+    _exit_with_stack_teardown(thread->mmap_base, thread->mmap_size);
+  }
+  // No need to free mapped space. Either there was no space mapped,
+  // or it is left for the pthread_join caller to clean up.
   __exit(0);
 }
diff --git a/libc/bionic/pthread_internal.cpp b/libc/bionic/pthread_internal.cpp
index bfe2f98..14cc7da 100644
--- a/libc/bionic/pthread_internal.cpp
+++ b/libc/bionic/pthread_internal.cpp
@@ -33,9 +33,12 @@
 #include <stdlib.h>
 #include <string.h>
 #include <sys/mman.h>
+#include <sys/prctl.h>
 
 #include <async_safe/log.h>
+#include <bionic/mte.h>
 #include <bionic/reserved_signals.h>
+#include <bionic/tls_defines.h>
 
 #include "private/ErrnoRestorer.h"
 #include "private/ScopedRWLock.h"
@@ -73,6 +76,15 @@
 }
 
 static void __pthread_internal_free(pthread_internal_t* thread) {
+#ifdef __aarch64__
+  if (void* stack_mte_tls = thread->bionic_tcb->tls_slot(TLS_SLOT_STACK_MTE)) {
+    size_t size =
+        stack_mte_ringbuffer_size_from_pointer(reinterpret_cast<uintptr_t>(stack_mte_tls));
+    void* ptr = reinterpret_cast<void*>(reinterpret_cast<uintptr_t>(stack_mte_tls) &
+                                        ((1ULL << 56ULL) - 1ULL));
+    munmap(ptr, size);
+  }
+#endif
   if (thread->mmap_size != 0) {
     // Free mapped space, including thread stack and pthread_internal_t.
     munmap(thread->mmap_base, thread->mmap_size);
@@ -176,14 +188,40 @@
   async_safe_fatal("stack not found in /proc/self/maps");
 }
 
-void __pthread_internal_remap_stack_with_mte() {
 #if defined(__aarch64__)
-  // If process doesn't have MTE enabled, we don't need to do anything.
-  if (!__libc_globals->memtag) return;
-  bool prev = true;
-  __libc_globals.mutate(
-      [&prev](libc_globals* globals) { prev = atomic_exchange(&globals->memtag_stack, true); });
-  if (prev) return;
+__LIBC_HIDDEN__ void* __allocate_stack_mte_ringbuffer(size_t n, pthread_internal_t* thread) {
+  const char* name;
+  if (thread == nullptr) {
+    name = "stack_mte_ring:main";
+  } else {
+    // The kernel doesn't copy the name string, but this variable will last at least as long as the
+    // mapped area. We unmap the ring buffer before unmapping the rest of the thread storage.
+    auto& name_buffer = thread->stack_mte_ringbuffer_vma_name_buffer;
+    static_assert(arraysize(name_buffer) >= arraysize("stack_mte_ring:") + 11 + 1);
+    async_safe_format_buffer(name_buffer, arraysize(name_buffer), "stack_mte_ring:%d", thread->tid);
+    name = name_buffer;
+  }
+  void* ret = stack_mte_ringbuffer_allocate(n, name);
+  if (!ret) async_safe_fatal("error: failed to allocate stack mte ring buffer");
+  return ret;
+}
+#endif
+
+bool __pthread_internal_remap_stack_with_mte() {
+#if defined(__aarch64__)
+  ScopedWriteLock creation_locker(&g_thread_creation_lock);
+  ScopedReadLock list_locker(&g_thread_list_lock);
+  // If process already uses memtag-stack ABI, we don't need to do anything.
+  if (__libc_memtag_stack_abi) return false;
+  __libc_memtag_stack_abi = true;
+
+  for (pthread_internal_t* t = g_thread_list; t != nullptr; t = t->next) {
+    if (t->terminating) continue;
+    t->bionic_tcb->tls_slot(TLS_SLOT_STACK_MTE) =
+        __allocate_stack_mte_ringbuffer(0, t->is_main() ? nullptr : t);
+  }
+  if (!atomic_load(&__libc_globals->memtag)) return false;
+  if (atomic_exchange(&__libc_memtag_stack, true)) return false;
   uintptr_t lo, hi;
   __find_main_stack_limits(&lo, &hi);
 
@@ -191,8 +229,6 @@
                PROT_READ | PROT_WRITE | PROT_MTE | PROT_GROWSDOWN)) {
     async_safe_fatal("error: failed to set PROT_MTE on main thread");
   }
-  ScopedWriteLock creation_locker(&g_thread_creation_lock);
-  ScopedReadLock list_locker(&g_thread_list_lock);
   for (pthread_internal_t* t = g_thread_list; t != nullptr; t = t->next) {
     if (t->terminating || t->is_main()) continue;
     if (mprotect(t->mmap_base_unguarded, t->mmap_size_unguarded,
@@ -200,7 +236,10 @@
       async_safe_fatal("error: failed to set PROT_MTE on thread: %d", t->tid);
     }
   }
-#endif
+  return true;
+#else
+  return false;
+#endif  // defined(__aarch64__)
 }
 
 bool android_run_on_all_threads(bool (*func)(void*), void* arg) {
diff --git a/libc/bionic/pthread_internal.h b/libc/bionic/pthread_internal.h
index 091f711..5db42ab 100644
--- a/libc/bionic/pthread_internal.h
+++ b/libc/bionic/pthread_internal.h
@@ -178,6 +178,10 @@
   bionic_tls* bionic_tls;
 
   int errno_value;
+
+  bionic_tcb* bionic_tcb;
+  char stack_mte_ringbuffer_vma_name_buffer[32];
+
   bool is_main() { return start_routine == nullptr; }
 };
 
@@ -209,6 +213,9 @@
 __LIBC_HIDDEN__ void __pthread_internal_remove(pthread_internal_t* thread);
 __LIBC_HIDDEN__ void __pthread_internal_remove_and_free(pthread_internal_t* thread);
 __LIBC_HIDDEN__ void __find_main_stack_limits(uintptr_t* low, uintptr_t* high);
+#if defined(__aarch64__)
+__LIBC_HIDDEN__ void* __allocate_stack_mte_ringbuffer(size_t n, pthread_internal_t* thread);
+#endif
 
 static inline __always_inline bionic_tcb* __get_bionic_tcb() {
   return reinterpret_cast<bionic_tcb*>(&__get_tls()[MIN_TLS_SLOT]);
@@ -240,7 +247,7 @@
 // On LP64, we could use more but there's no obvious advantage to doing
 // so, and the various media processes use RLIMIT_AS as a way to limit
 // the amount of allocation they'll do.
-#define PTHREAD_GUARD_SIZE max_page_size()
+#define PTHREAD_GUARD_SIZE max_android_page_size()
 
 // SIGSTKSZ (8KiB) is not big enough.
 // An snprintf to a stack buffer of size PATH_MAX consumes ~7KiB of stack.
@@ -268,8 +275,9 @@
 __LIBC_HIDDEN__ extern void __bionic_atfork_run_child();
 __LIBC_HIDDEN__ extern void __bionic_atfork_run_parent();
 
-// Re-map all threads and successively launched threads with PROT_MTE.
-__LIBC_HIDDEN__ void __pthread_internal_remap_stack_with_mte();
+// Re-map all threads and successively launched threads with PROT_MTE. Returns 'true' if remapping
+// took place, 'false' on error or if the stacks were already remapped in the past.
+__LIBC_HIDDEN__ bool __pthread_internal_remap_stack_with_mte();
 
 extern "C" bool android_run_on_all_threads(bool (*func)(void*), void* arg);
 
diff --git a/libc/bionic/pthread_rwlock.cpp b/libc/bionic/pthread_rwlock.cpp
index ebf6697..6f3c6fe 100644
--- a/libc/bionic/pthread_rwlock.cpp
+++ b/libc/bionic/pthread_rwlock.cpp
@@ -69,11 +69,12 @@
 #define RWLOCKATTR_KIND_MASK     2
 #define RWLOCKATTR_RESERVED_MASK (~3)
 
-static inline __always_inline __always_inline bool __rwlockattr_getpshared(const pthread_rwlockattr_t* attr) {
+static inline __always_inline bool __rwlockattr_getpshared(const pthread_rwlockattr_t* attr) {
   return (*attr & RWLOCKATTR_PSHARED_MASK) >> RWLOCKATTR_PSHARED_SHIFT;
 }
 
-static inline __always_inline __always_inline void __rwlockattr_setpshared(pthread_rwlockattr_t* attr, int pshared) {
+static inline __always_inline void __rwlockattr_setpshared(pthread_rwlockattr_t* attr,
+                                                           int pshared) {
   *attr = (*attr & ~RWLOCKATTR_PSHARED_MASK) | (pshared << RWLOCKATTR_PSHARED_SHIFT);
 }
 
diff --git a/libc/bionic/sys_msg.cpp b/libc/bionic/sys_msg.cpp
index 462c83b..9780d38 100644
--- a/libc/bionic/sys_msg.cpp
+++ b/libc/bionic/sys_msg.cpp
@@ -36,33 +36,17 @@
   // Annoyingly, the kernel requires this for 32-bit but rejects it for 64-bit.
   cmd |= IPC_64;
 #endif
-#if defined(SYS_msgctl)
   return syscall(SYS_msgctl, id, cmd, buf);
-#else
-  return syscall(SYS_ipc, MSGCTL, id, cmd, 0, buf, 0);
-#endif
 }
 
 int msgget(key_t key, int flags) {
-#if defined(SYS_msgget)
   return syscall(SYS_msgget, key, flags);
-#else
-  return syscall(SYS_ipc, MSGGET, key, flags, 0, 0, 0);
-#endif
 }
 
 ssize_t msgrcv(int id, void* msg, size_t n, long type, int flags) {
-#if defined(SYS_msgrcv)
   return syscall(SYS_msgrcv, id, msg, n, type, flags);
-#else
-  return syscall(SYS_ipc, IPCCALL(1, MSGRCV), id, n, flags, msg, type);
-#endif
 }
 
 int msgsnd(int id, const void* msg, size_t n, int flags) {
-#if defined(SYS_msgsnd)
   return syscall(SYS_msgsnd, id, msg, n, flags);
-#else
-  return syscall(SYS_ipc, MSGSND, id, n, flags, msg, 0);
-#endif
 }
diff --git a/libc/bionic/sys_sem.cpp b/libc/bionic/sys_sem.cpp
index 058cfef..b97bf46 100644
--- a/libc/bionic/sys_sem.cpp
+++ b/libc/bionic/sys_sem.cpp
@@ -41,19 +41,11 @@
   va_start(ap, cmd);
   semun arg = va_arg(ap, semun);
   va_end(ap);
-#if defined(SYS_semctl)
   return syscall(SYS_semctl, id, num, cmd, arg);
-#else
-  return syscall(SYS_ipc, SEMCTL, id, num, cmd, &arg, 0);
-#endif
 }
 
 int semget(key_t key, int n, int flags) {
-#if defined(SYS_semget)
   return syscall(SYS_semget, key, n, flags);
-#else
-  return syscall(SYS_ipc, SEMGET, key, n, flags, 0, 0);
-#endif
 }
 
 int semop(int id, sembuf* ops, size_t op_count) {
@@ -64,6 +56,9 @@
 #if defined(SYS_semtimedop)
   return syscall(SYS_semtimedop, id, ops, op_count, ts);
 #else
+  // 32-bit x86 -- the only architecture without semtimedop(2) -- only has
+  // semtimedop_time64(2), but since we don't have any timespec64 stuff,
+  // it's less painful for us to just stick with the legacy ipc(2) here.
   return syscall(SYS_ipc, SEMTIMEDOP, id, op_count, 0, ops, ts);
 #endif
 }
diff --git a/libc/bionic/sys_shm.cpp b/libc/bionic/sys_shm.cpp
index f780e04..777b3ad 100644
--- a/libc/bionic/sys_shm.cpp
+++ b/libc/bionic/sys_shm.cpp
@@ -32,16 +32,7 @@
 #include <unistd.h>
 
 void* shmat(int id, const void* address, int flags) {
-#if defined(SYS_shmat)
   return reinterpret_cast<void*>(syscall(SYS_shmat, id, address, flags));
-#else
-  // See the kernel's ipc/syscall.c for the other side of this dance.
-  void* result = nullptr;
-  if (syscall(SYS_ipc, SHMAT, id, flags, &result, address, 0) == -1) {
-    return reinterpret_cast<void*>(-1);
-  }
-  return result;
-#endif
 }
 
 int shmctl(int id, int cmd, struct shmid_ds* buf) {
@@ -49,25 +40,13 @@
   // Annoyingly, the kernel requires this for 32-bit but rejects it for 64-bit.
   cmd |= IPC_64;
 #endif
-#if defined(SYS_shmctl)
   return syscall(SYS_shmctl, id, cmd, buf);
-#else
-  return syscall(SYS_ipc, SHMCTL, id, cmd, 0, buf, 0);
-#endif
 }
 
 int shmdt(const void* address) {
-#if defined(SYS_shmdt)
   return syscall(SYS_shmdt, address);
-#else
-  return syscall(SYS_ipc, SHMDT, 0, 0, 0, address, 0);
-#endif
 }
 
 int shmget(key_t key, size_t size, int flags) {
-#if defined(SYS_shmget)
   return syscall(SYS_shmget, key, size, flags);
-#else
-  return syscall(SYS_ipc, SHMGET, key, size, flags, 0, 0);
-#endif
 }
diff --git a/libc/bionic/sys_statvfs.cpp b/libc/bionic/sys_statvfs.cpp
index b3a0aca..3a05c3f 100644
--- a/libc/bionic/sys_statvfs.cpp
+++ b/libc/bionic/sys_statvfs.cpp
@@ -17,7 +17,7 @@
 #include <sys/statfs.h>
 #include <sys/statvfs.h>
 
-static __inline void __bionic_statfs_to_statvfs(const struct statfs* src, struct statvfs* dst) {
+static inline void __bionic_statfs_to_statvfs(const struct statfs* src, struct statvfs* dst) {
   dst->f_bsize = src->f_bsize;
   dst->f_frsize = src->f_frsize;
   dst->f_blocks = src->f_blocks;
diff --git a/libc/bionic/sys_thread_properties.cpp b/libc/bionic/sys_thread_properties.cpp
index d1a73b7..064bca1 100644
--- a/libc/bionic/sys_thread_properties.cpp
+++ b/libc/bionic/sys_thread_properties.cpp
@@ -61,7 +61,7 @@
   if (modules.first_thread_exit_callback == nullptr) {
     modules.first_thread_exit_callback = cb;
     return;
-  };
+  }
 
   BionicAllocator& allocator = __libc_shared_globals()->tls_allocator;
   CallbackHolder* new_node =
@@ -77,35 +77,9 @@
 
   // Find the thread-pointer register for the given thread.
   void** tp_reg = nullptr;
-#if defined(__x86_64__)
-  {
-    ErrnoRestorer errno_restorer;
-    errno = 0;
-    uintptr_t fs_base = ptrace(PTRACE_PEEKUSER, tid, offsetof(user_regs_struct, fs_base), nullptr);
-    if (errno == 0) {
-      tp_reg = reinterpret_cast<void**>(fs_base);
-    }
-  }
-#elif defined(__i386__)
-  struct user_regs_struct regs;
-  struct iovec pt_iov = {
-      .iov_base = &regs,
-      .iov_len = sizeof(regs),
-  };
-
-  if (ptrace(PTRACE_GETREGSET, tid, NT_PRSTATUS, &pt_iov) == 0) {
-    struct user_desc u_info;
-    u_info.entry_number = regs.xgs >> 3;
-    if (ptrace(PTRACE_GET_THREAD_AREA, tid, u_info.entry_number, &u_info) == 0) {
-      tp_reg = reinterpret_cast<void**>(u_info.base_addr);
-    }
-  }
-#elif defined(__aarch64__)
+#if defined(__aarch64__)
   uint64_t reg;
-  struct iovec pt_iov {
-    .iov_base = &reg, .iov_len = sizeof(reg),
-  };
-
+  struct iovec pt_iov { .iov_base = &reg, .iov_len = sizeof(reg) };
   if (ptrace(PTRACE_GETREGSET, tid, NT_ARM_TLS, &pt_iov) == 0) {
     tp_reg = reinterpret_cast<void**>(reg);
   }
@@ -114,6 +88,31 @@
     // Reset the tp_reg if ptrace was unsuccessful.
     tp_reg = nullptr;
   }
+#elif defined(__i386__)
+  struct user_regs_struct regs;
+  struct iovec pt_iov = { .iov_base = &regs, .iov_len = sizeof(regs) };
+  if (ptrace(PTRACE_GETREGSET, tid, NT_PRSTATUS, &pt_iov) == 0) {
+    struct user_desc u_info;
+    u_info.entry_number = regs.xgs >> 3;
+    if (ptrace(PTRACE_GET_THREAD_AREA, tid, u_info.entry_number, &u_info) == 0) {
+      tp_reg = reinterpret_cast<void**>(u_info.base_addr);
+    }
+  }
+#elif defined(__riscv)
+  struct user_regs_struct regs;
+  struct iovec pt_iov = { .iov_base = &regs, .iov_len = sizeof(regs) };
+  if (ptrace(PTRACE_GETREGSET, tid, NT_PRSTATUS, &pt_iov) == 0) {
+    tp_reg = reinterpret_cast<void**>(regs.tp);
+  }
+#elif defined(__x86_64__)
+  {
+    ErrnoRestorer errno_restorer;
+    errno = 0;
+    uintptr_t fs_base = ptrace(PTRACE_PEEKUSER, tid, offsetof(user_regs_struct, fs_base), nullptr);
+    if (errno == 0) {
+      tp_reg = reinterpret_cast<void**>(fs_base);
+    }
+  }
 #endif
 
   if (tp_reg == nullptr) {
diff --git a/libc/bionic/sysconf.cpp b/libc/bionic/sysconf.cpp
index ff72b93..571370c 100644
--- a/libc/bionic/sysconf.cpp
+++ b/libc/bionic/sysconf.cpp
@@ -41,16 +41,6 @@
 #include "platform/bionic/page.h"
 #include "private/bionic_tls.h"
 
-static long __sysconf_fread_long(const char* path) {
-  long result = 0;
-  FILE* fp = fopen(path, "re");
-  if (fp != nullptr) {
-    fscanf(fp, "%ld", &result);
-    fclose(fp);
-  }
-  return result;
-}
-
 struct sysconf_cache {
   long size, assoc, linesize;
 
@@ -100,6 +90,16 @@
 
 #else
 
+static long __sysconf_fread_long(const char* path) {
+  long result = 0;
+  FILE* fp = fopen(path, "re");
+  if (fp != nullptr) {
+    fscanf(fp, "%ld", &result);
+    fclose(fp);
+  }
+  return result;
+}
+
 static sysconf_caches* __sysconf_caches() {
   static sysconf_caches cached = []{
     sysconf_caches info = {};
@@ -182,8 +182,8 @@
 
     case _SC_AVPHYS_PAGES:      return get_avphys_pages();
     case _SC_CHILD_MAX:         return __sysconf_rlimit(RLIMIT_NPROC);
-    case _SC_CLK_TCK:           return static_cast<long>(getauxval(AT_CLKTCK));
-    case _SC_NGROUPS_MAX:       return __sysconf_fread_long("/proc/sys/kernel/ngroups_max");
+    case _SC_CLK_TCK:
+      return static_cast<long>(getauxval(AT_CLKTCK));
     case _SC_NPROCESSORS_CONF:  return get_nprocs_conf();
     case _SC_NPROCESSORS_ONLN:  return get_nprocs();
     case _SC_OPEN_MAX:          return __sysconf_rlimit(RLIMIT_NOFILE);
@@ -205,6 +205,11 @@
     case _SC_COLL_WEIGHTS_MAX:  return _POSIX2_COLL_WEIGHTS_MAX;  // Minimum requirement.
     case _SC_EXPR_NEST_MAX:     return _POSIX2_EXPR_NEST_MAX;     // Minimum requirement.
     case _SC_LINE_MAX:          return _POSIX2_LINE_MAX;          // Minimum requirement.
+    case _SC_NGROUPS_MAX:
+      // Only root can read /proc/sys/kernel/ngroups_max on Android, and groups
+      // are vestigial anyway, so the "maximum maximum" of NGROUPS_MAX is a good
+      // enough answer for _SC_NGROUPS_MAX...
+      return NGROUPS_MAX;
     case _SC_PASS_MAX:          return PASS_MAX;
     case _SC_2_C_BIND:          return _POSIX2_C_BIND;
     case _SC_2_C_DEV:           return _POSIX2_C_DEV;
@@ -235,7 +240,7 @@
     case _SC_AIO_LISTIO_MAX:    return _POSIX_AIO_LISTIO_MAX;     // Minimum requirement.
     case _SC_AIO_MAX:           return _POSIX_AIO_MAX;            // Minimum requirement.
     case _SC_AIO_PRIO_DELTA_MAX:return 0;                         // Minimum requirement.
-    case _SC_DELAYTIMER_MAX:    return INT_MAX;
+    case _SC_DELAYTIMER_MAX:    return _POSIX_DELAYTIMER_MAX;
     case _SC_MQ_OPEN_MAX:       return _POSIX_MQ_OPEN_MAX;        // Minimum requirement.
     case _SC_MQ_PRIO_MAX:       return _POSIX_MQ_PRIO_MAX;        // Minimum requirement.
     case _SC_RTSIG_MAX:         return RTSIG_MAX;
@@ -303,11 +308,11 @@
     case _SC_THREAD_ROBUST_PRIO_PROTECT:  return _POSIX_THREAD_ROBUST_PRIO_PROTECT;
     case _SC_THREAD_SPORADIC_SERVER:      return _POSIX_THREAD_SPORADIC_SERVER;
     case _SC_TIMEOUTS:          return _POSIX_TIMEOUTS;
-    case _SC_TRACE:             return -1;             // Obsolescent in POSIX.1-2008.
-    case _SC_TRACE_EVENT_FILTER:      return -1;       // Obsolescent in POSIX.1-2008.
+    case _SC_TRACE:             return -1;
+    case _SC_TRACE_EVENT_FILTER:      return -1;
     case _SC_TRACE_EVENT_NAME_MAX:    return -1;
-    case _SC_TRACE_INHERIT:     return -1;             // Obsolescent in POSIX.1-2008.
-    case _SC_TRACE_LOG:         return -1;             // Obsolescent in POSIX.1-2008.
+    case _SC_TRACE_INHERIT:     return -1;
+    case _SC_TRACE_LOG:         return -1;
     case _SC_TRACE_NAME_MAX:    return -1;
     case _SC_TRACE_SYS_MAX:     return -1;
     case _SC_TRACE_USER_EVENT_MAX:    return -1;
@@ -316,7 +321,7 @@
     case _SC_V7_ILP32_OFFBIG:   return _POSIX_V7_ILP32_OFFBIG;
     case _SC_V7_LP64_OFF64:     return _POSIX_V7_LP64_OFF64;
     case _SC_V7_LPBIG_OFFBIG:   return _POSIX_V7_LPBIG_OFFBIG;
-    case _SC_XOPEN_STREAMS:     return -1;            // Obsolescent in POSIX.1-2008.
+    case _SC_XOPEN_STREAMS:     return -1;
     case _SC_XOPEN_UUCP:        return -1;
 
     case _SC_LEVEL1_ICACHE_SIZE:      return __sysconf_caches()->l1_i.size;
diff --git a/libc/bionic/system_property_set.cpp b/libc/bionic/system_property_set.cpp
index f7999db..73cf151 100644
--- a/libc/bionic/system_property_set.cpp
+++ b/libc/bionic/system_property_set.cpp
@@ -49,21 +49,34 @@
 #include "private/ScopedFd.h"
 
 static const char property_service_socket[] = "/dev/socket/" PROP_SERVICE_NAME;
+static const char property_service_for_system_socket[] =
+    "/dev/socket/" PROP_SERVICE_FOR_SYSTEM_NAME;
 static const char* kServiceVersionPropertyName = "ro.property_service.version";
 
 class PropertyServiceConnection {
  public:
-  PropertyServiceConnection() : last_error_(0) {
+  PropertyServiceConnection(const char* name) : last_error_(0) {
     socket_.reset(::socket(AF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0));
     if (socket_.get() == -1) {
       last_error_ = errno;
       return;
     }
 
-    const size_t namelen = strlen(property_service_socket);
+    // If we're trying to set "sys.powerctl" from a privileged process, use the special
+    // socket. Because this socket is only accessible to privileged processes, it can't
+    // be DoSed directly by malicious apps. (The shell user should be able to reboot,
+    // though, so we don't just always use the special socket for "sys.powerctl".)
+    // See b/262237198 for context
+    const char* socket = property_service_socket;
+    if (strcmp(name, "sys.powerctl") == 0 &&
+        access(property_service_for_system_socket, W_OK) == 0) {
+      socket = property_service_for_system_socket;
+    }
+
+    const size_t namelen = strlen(socket);
     sockaddr_un addr;
     memset(&addr, 0, sizeof(addr));
-    strlcpy(addr.sun_path, property_service_socket, sizeof(addr.sun_path));
+    strlcpy(addr.sun_path, socket, sizeof(addr.sun_path));
     addr.sun_family = AF_LOCAL;
     socklen_t alen = namelen + offsetof(sockaddr_un, sun_path) + 1;
 
@@ -176,7 +189,7 @@
 };
 
 static int send_prop_msg(const prop_msg* msg) {
-  PropertyServiceConnection connection;
+  PropertyServiceConnection connection(msg->name);
   if (!connection.IsValid()) {
     return connection.GetLastError();
   }
@@ -244,6 +257,21 @@
   }
 }
 
+static const char* __prop_error_to_string(int error) {
+  switch (error) {
+  case PROP_ERROR_READ_CMD: return "PROP_ERROR_READ_CMD";
+  case PROP_ERROR_READ_DATA: return "PROP_ERROR_READ_DATA";
+  case PROP_ERROR_READ_ONLY_PROPERTY: return "PROP_ERROR_READ_ONLY_PROPERTY";
+  case PROP_ERROR_INVALID_NAME: return "PROP_ERROR_INVALID_NAME";
+  case PROP_ERROR_INVALID_VALUE: return "PROP_ERROR_INVALID_VALUE";
+  case PROP_ERROR_PERMISSION_DENIED: return "PROP_ERROR_PERMISSION_DENIED";
+  case PROP_ERROR_INVALID_CMD: return "PROP_ERROR_INVALID_CMD";
+  case PROP_ERROR_HANDLE_CONTROL_MESSAGE: return "PROP_ERROR_HANDLE_CONTROL_MESSAGE";
+  case PROP_ERROR_SET_FAILED: return "PROP_ERROR_SET_FAILED";
+  }
+  return "<unknown>";
+}
+
 __BIONIC_WEAK_FOR_NATIVE_BRIDGE
 int __system_property_set(const char* key, const char* value) {
   if (key == nullptr) return -1;
@@ -269,7 +297,7 @@
     // New protocol only allows long values for ro. properties only.
     if (strlen(value) >= PROP_VALUE_MAX && strncmp(key, "ro.", 3) != 0) return -1;
     // Use proper protocol
-    PropertyServiceConnection connection;
+    PropertyServiceConnection connection(key);
     if (!connection.IsValid()) {
       errno = connection.GetLastError();
       async_safe_format_log(ANDROID_LOG_WARN, "libc",
@@ -297,8 +325,8 @@
 
     if (result != PROP_SUCCESS) {
       async_safe_format_log(ANDROID_LOG_WARN, "libc",
-                            "Unable to set property \"%s\" to \"%s\": error code: 0x%x", key, value,
-                            result);
+                            "Unable to set property \"%s\" to \"%s\": %s (0x%x)", key, value,
+                            __prop_error_to_string(result), result);
       return -1;
     }
 
diff --git a/libc/bionic/wctype.cpp b/libc/bionic/wctype.cpp
index 082dada..b37f17b 100644
--- a/libc/bionic/wctype.cpp
+++ b/libc/bionic/wctype.cpp
@@ -34,6 +34,7 @@
 #include <string.h>
 #include <wchar.h>
 
+#include "bionic/macros.h"
 #include "private/icu.h"
 
 enum {
@@ -95,21 +96,12 @@
 int iswxdigit_l(wint_t c, locale_t) { return iswxdigit(c); }
 
 int iswctype(wint_t wc, wctype_t char_class) {
-  switch (char_class) {
-    case WC_TYPE_ALNUM: return iswalnum(wc);
-    case WC_TYPE_ALPHA: return iswalpha(wc);
-    case WC_TYPE_BLANK: return iswblank(wc);
-    case WC_TYPE_CNTRL: return iswcntrl(wc);
-    case WC_TYPE_DIGIT: return iswdigit(wc);
-    case WC_TYPE_GRAPH: return iswgraph(wc);
-    case WC_TYPE_LOWER: return iswlower(wc);
-    case WC_TYPE_PRINT: return iswprint(wc);
-    case WC_TYPE_PUNCT: return iswpunct(wc);
-    case WC_TYPE_SPACE: return iswspace(wc);
-    case WC_TYPE_UPPER: return iswupper(wc);
-    case WC_TYPE_XDIGIT: return iswxdigit(wc);
-    default: return 0;
-  }
+  if (char_class < WC_TYPE_ALNUM || char_class > WC_TYPE_XDIGIT) return 0;
+  static int (*fns[])(wint_t) = {
+    iswalnum, iswalpha, iswblank, iswcntrl, iswdigit, iswgraph,
+    iswlower, iswprint, iswpunct, iswspace, iswupper, iswxdigit
+  };
+  return fns[char_class - WC_TYPE_ALNUM](wc);
 }
 
 int iswctype_l(wint_t wc, wctype_t char_class, locale_t) {
@@ -117,10 +109,7 @@
 }
 
 wint_t towlower(wint_t wc) {
-  if (wc < 0x80) {
-    if (wc >= 'A' && wc <= 'Z') return wc | 0x20;
-    return wc;
-  }
+  if (wc < 0x80) return tolower(wc);
 
   typedef UChar32 (*FnT)(UChar32);
   static auto u_tolower = reinterpret_cast<FnT>(__find_icu_symbol("u_tolower"));
@@ -128,12 +117,7 @@
 }
 
 wint_t towupper(wint_t wc) {
-  if (wc < 0x80) {
-    // Using EOR rather than AND makes no difference on arm, but saves an
-    // instruction on arm64.
-    if (wc >= 'a' && wc <= 'z') return wc ^ 0x20;
-    return wc;
-  }
+  if (wc < 0x80) return toupper(wc);
 
   typedef UChar32 (*FnT)(UChar32);
   static auto u_toupper = reinterpret_cast<FnT>(__find_icu_symbol("u_toupper"));
@@ -144,14 +128,13 @@
 wint_t towlower_l(wint_t c, locale_t) { return towlower(c); }
 
 wctype_t wctype(const char* property) {
-  static const char* const  properties[WC_TYPE_MAX] = {
-    "<invalid>",
+  static const char* const  properties[WC_TYPE_MAX - 1] = {
     "alnum", "alpha", "blank", "cntrl", "digit", "graph",
     "lower", "print", "punct", "space", "upper", "xdigit"
   };
-  for (size_t i = 0; i < WC_TYPE_MAX; ++i) {
+  for (size_t i = 0; i < arraysize(properties); ++i) {
     if (!strcmp(properties[i], property)) {
-      return static_cast<wctype_t>(i);
+      return static_cast<wctype_t>(WC_TYPE_ALNUM + i);
     }
   }
   return static_cast<wctype_t>(0);
@@ -167,6 +150,7 @@
 wctrans_t wctrans(const char* name) {
   if (strcmp(name, "tolower") == 0) return wctrans_tolower;
   if (strcmp(name, "toupper") == 0) return wctrans_toupper;
+  errno = EINVAL;
   return nullptr;
 }
 
@@ -178,7 +162,7 @@
   if (t == wctrans_tolower) return towlower(c);
   if (t == wctrans_toupper) return towupper(c);
   errno = EINVAL;
-  return 0;
+  return c;
 }
 
 wint_t towctrans_l(wint_t c, wctrans_t t, locale_t) {
diff --git a/libc/bionic/wcwidth.cpp b/libc/bionic/wcwidth.cpp
index 9676b5a..4582ef7 100644
--- a/libc/bionic/wcwidth.cpp
+++ b/libc/bionic/wcwidth.cpp
@@ -52,12 +52,15 @@
     return -1;
    case U_NON_SPACING_MARK:
    case U_ENCLOSING_MARK:
-   case U_FORMAT_CHAR:
     return 0;
+   case U_FORMAT_CHAR:
+    // A special case for soft hyphen (U+00AD) to match historical practice.
+    // See the tests for more commentary.
+    return (wc == 0x00ad) ? 1 : 0;
   }
-  if (__icu_hasBinaryProperty(wc, UCHAR_DEFAULT_IGNORABLE_CODE_POINT, nullptr)) return 0;
 
-  // Medial and final jamo render as zero width when used correctly.
+  // Medial and final jamo render as zero width when used correctly,
+  // so we handle them specially rather than relying on East Asian Width.
   switch (__icu_getIntPropertyValue(wc, UCHAR_HANGUL_SYLLABLE_TYPE)) {
    case U_HST_VOWEL_JAMO:
    case U_HST_TRAILING_JAMO:
@@ -68,6 +71,11 @@
     return 2;
   }
 
+  // Hangeul choseong filler U+115F is default ignorable, so we check default
+  // ignorability only after we've already handled Hangeul jamo above.
+  if (__icu_hasBinaryProperty(wc, UCHAR_DEFAULT_IGNORABLE_CODE_POINT, nullptr)) return 0;
+
+  // A few weird special cases where EastAsianWidth is not helpful for us.
   if (wc >= 0x3248 && wc <= 0x4dff) {
     // Circled two-digit CJK "speed sign" numbers. EastAsianWidth is ambiguous,
     // but wide makes more sense.
@@ -77,6 +85,7 @@
   }
 
   // The EastAsianWidth property is at least defined by the Unicode standard!
+  // https://www.unicode.org/reports/tr11/
   switch (__icu_getIntPropertyValue(wc, UCHAR_EAST_ASIAN_WIDTH)) {
    case U_EA_AMBIGUOUS:
    case U_EA_HALFWIDTH:
diff --git a/libc/dns/include/resolv_private.h b/libc/dns/include/resolv_private.h
index 3054555..1593aca 100644
--- a/libc/dns/include/resolv_private.h
+++ b/libc/dns/include/resolv_private.h
@@ -504,15 +504,7 @@
 // ...but NetBSD calls it res_randomid.
 #define res_randomid __res_randomid
 
-#ifdef __i386__
-# define __socketcall extern __attribute__((__cdecl__))
-#else
-# define __socketcall extern
-#endif
-
-__socketcall int __connect(int, const struct sockaddr*, socklen_t);
-
-#undef __socketcall
+int __connect(int, const struct sockaddr*, socklen_t);
 
 // Symbols that are supposed to be in resolv.h, but that we aren't exporting.
 int ns_parserr2(ns_msg*, ns_sect, int, ns_rr2*);
diff --git a/libc/dns/resolv/res_cache.c b/libc/dns/resolv/res_cache.c
index f4c590f..38de84b 100644
--- a/libc/dns/resolv/res_cache.c
+++ b/libc/dns/resolv/res_cache.c
@@ -1166,23 +1166,19 @@
     }
 }
 
-static __inline__ void
-entry_mru_remove( Entry*  e )
-{
-    e->mru_prev->mru_next = e->mru_next;
-    e->mru_next->mru_prev = e->mru_prev;
+static __inline__ void entry_mru_remove(Entry* e) {
+  e->mru_prev->mru_next = e->mru_next;
+  e->mru_next->mru_prev = e->mru_prev;
 }
 
-static __inline__ void
-entry_mru_add( Entry*  e, Entry*  list )
-{
-    Entry*  first = list->mru_next;
+static __inline__ void entry_mru_add(Entry* e, Entry* list) {
+  Entry* first = list->mru_next;
 
-    e->mru_next = first;
-    e->mru_prev = list;
+  e->mru_next = first;
+  e->mru_prev = list;
 
-    list->mru_next  = e;
-    first->mru_prev = e;
+  list->mru_next = e;
+  first->mru_prev = e;
 }
 
 /* compute the hash of a given entry, this is a hash of most
diff --git a/libc/include/android/api-level.h b/libc/include/android/api-level.h
index 77ec653..1bde3a5 100644
--- a/libc/include/android/api-level.h
+++ b/libc/include/android/api-level.h
@@ -168,7 +168,10 @@
  */
 #define __ANDROID_API_U__ 34
 
-/** Names the "V" API level (35), for comparison against `__ANDROID_API__`. */
+/**
+ * Names the Android 15 (aka "V" or "VanillaIceCream") API level (35),
+ * for comparison against `__ANDROID_API__`.
+ */
 #define __ANDROID_API_V__ 35
 
 /* This file is included in <features.h>, and might be used from .S files. */
diff --git a/libc/include/android/crash_detail.h b/libc/include/android/crash_detail.h
index 1fd082f..946a3ab 100644
--- a/libc/include/android/crash_detail.h
+++ b/libc/include/android/crash_detail.h
@@ -34,8 +34,6 @@
  */
 
 #include <stddef.h>
-#include <stdint.h>
-#include <string.h>
 #include <sys/cdefs.h>
 
 __BEGIN_DECLS
@@ -51,6 +49,11 @@
  * Tombstone proto definition:
  *   https://cs.android.com/android/platform/superproject/main/+/main:system/core/debuggerd/proto/tombstone.proto
  *
+ * An app can get hold of these for any `REASON_CRASH_NATIVE` instance of
+ * `android.app.ApplicationExitInfo`.
+ *
+ * https://developer.android.com/reference/android/app/ApplicationExitInfo#getTraceInputStream()
+
  * The lifetime of name and data has to be valid until the program crashes, or until
  * android_crash_detail_unregister is called.
  *
@@ -66,7 +69,7 @@
  * Introduced in API 35.
  *
  * \param name identifying name for this extra data.
- *             this should generally be a human-readable debug string, but we are treating
+ *             this should generally be a human-readable UTF-8 string, but we are treating
  *             it as arbitrary bytes because it could be corrupted by the crash.
  * \param name_size number of bytes of the buffer pointed to by name
  * \param data a buffer containing the extra detail bytes, if null the crash detail
diff --git a/libc/include/android/dlext.h b/libc/include/android/dlext.h
index a5061c7..b42e5b2 100644
--- a/libc/include/android/dlext.h
+++ b/libc/include/android/dlext.h
@@ -14,8 +14,7 @@
  * limitations under the License.
  */
 
-#ifndef __ANDROID_DLEXT_H__
-#define __ANDROID_DLEXT_H__
+#pragma once
 
 #include <stdbool.h>
 #include <stddef.h>
@@ -101,7 +100,7 @@
   ANDROID_DLEXT_FORCE_LOAD = 0x40,
 
   // Historically we had two other options for ART.
-  // They were last available in Android P.
+  // They were last available in API level 28.
   // Reuse these bits last!
   // ANDROID_DLEXT_FORCE_FIXED_VADDR = 0x80
   // ANDROID_DLEXT_LOAD_AT_FIXED_ADDRESS = 0x100
@@ -115,7 +114,7 @@
   ANDROID_DLEXT_USE_NAMESPACE = 0x200,
 
   /**
-   * Instructs dlopen to apply `ANDROID_DLEXT_RESERVED_ADDRESS`,
+   * Instructs dlopen() to apply `ANDROID_DLEXT_RESERVED_ADDRESS`,
    * `ANDROID_DLEXT_RESERVED_ADDRESS_HINT`, `ANDROID_DLEXT_WRITE_RELRO` and
    * `ANDROID_DLEXT_USE_RELRO` to any libraries loaded as dependencies of the
    * main library as well.
@@ -151,7 +150,7 @@
 
 struct android_namespace_t;
 
-/** Used to pass Android-specific arguments to `android_dlopen_ext`. */
+/** Used to pass Android-specific arguments to android_dlopen_ext(). */
 typedef struct {
   /** A bitmask of `ANDROID_DLEXT_` enum values. */
   uint64_t flags;
@@ -183,5 +182,3 @@
 __END_DECLS
 
 /** @} */
-
-#endif
diff --git a/libc/include/android/fdsan.h b/libc/include/android/fdsan.h
index 3de0649..4540498 100644
--- a/libc/include/android/fdsan.h
+++ b/libc/include/android/fdsan.h
@@ -126,6 +126,9 @@
 
   /* native_handle_t */
   ANDROID_FDSAN_OWNER_TYPE_NATIVE_HANDLE = 13,
+
+  /* android::Parcel */
+  ANDROID_FDSAN_OWNER_TYPE_PARCEL = 14,
 };
 
 /*
diff --git a/libc/include/android/set_abort_message.h b/libc/include/android/set_abort_message.h
index 2525242..a778057 100644
--- a/libc/include/android/set_abort_message.h
+++ b/libc/include/android/set_abort_message.h
@@ -43,11 +43,30 @@
 typedef struct crash_detail_t crash_detail_t;
 
 /**
- * android_set_abort_message() sets the abort message that will be shown
- * by [debuggerd](https://source.android.com/devices/tech/debug/native-crash).
+ * android_set_abort_message() sets the abort message passed to
+ * [debuggerd](https://source.android.com/devices/tech/debug/native-crash)
+ * for inclusion in any crash.
+ *
  * This is meant for use by libraries that deliberately abort so that they can
  * provide an explanation. It is used within bionic to implement assert() and
- * all FORTIFY/fdsan aborts.
+ * all FORTIFY and fdsan failures.
+ *
+ * The message appears directly in logcat at the time of crash. It will
+ * also be added to both the tombstone proto in the crash_detail field, and
+ * in the tombstone text format.
+ *
+ * Tombstone proto definition:
+ *   https://cs.android.com/android/platform/superproject/main/+/main:system/core/debuggerd/proto/tombstone.proto
+ *
+ * An app can get hold of these for any `REASON_CRASH_NATIVE` instance of
+ * `android.app.ApplicationExitInfo`.
+ *  https://developer.android.com/reference/android/app/ApplicationExitInfo#getTraceInputStream()
+ *
+ * The given message is copied at the time this function is called, and does
+ * not need to be valid until the crash actually happens, but typically this
+ * function is called immediately before aborting. See <android/crash_detail.h>
+ * for API more suited to the use case where the caller doesn't _expect_ a
+ * crash but would like to see the information _if_ a crash happens.
  */
 void android_set_abort_message(const char* _Nullable __msg);
 
diff --git a/libc/include/android/versioning.h b/libc/include/android/versioning.h
index 08fe45d..6bab291 100644
--- a/libc/include/android/versioning.h
+++ b/libc/include/android/versioning.h
@@ -20,15 +20,15 @@
 // we should only annotate headers when we are running versioner.
 #if defined(__BIONIC_VERSIONER)
 
-#define __INTRODUCED_IN(api_level) __attribute__((annotate("introduced_in=" #api_level)))
-#define __INTRODUCED_IN_NO_GUARD_FOR_NDK(api_level) __attribute__((annotate("introduced_in=" #api_level))) __VERSIONER_NO_GUARD
-#define __DEPRECATED_IN(api_level) __attribute__((annotate("deprecated_in=" #api_level)))
-#define __REMOVED_IN(api_level) __attribute__((annotate("obsoleted_in=" #api_level)))
-#define __INTRODUCED_IN_32(api_level) __attribute__((annotate("introduced_in_32=" #api_level)))
-#define __INTRODUCED_IN_64(api_level) __attribute__((annotate("introduced_in_64=" #api_level)))
+#define __INTRODUCED_IN(api_level) __attribute__((__annotate__("introduced_in=" #api_level)))
+#define __INTRODUCED_IN_NO_GUARD_FOR_NDK(api_level) __attribute__((__annotate__("introduced_in=" #api_level))) __VERSIONER_NO_GUARD
+#define __DEPRECATED_IN(api_level, msg) __attribute__((__annotate__("deprecated_in=" #api_level)))
+#define __REMOVED_IN(api_level, msg) __attribute__((__annotate__("obsoleted_in=" #api_level)))
+#define __INTRODUCED_IN_32(api_level) __attribute__((__annotate__("introduced_in_32=" #api_level)))
+#define __INTRODUCED_IN_64(api_level) __attribute__((__annotate__("introduced_in_64=" #api_level)))
 
-#define __VERSIONER_NO_GUARD __attribute__((annotate("versioner_no_guard")))
-#define __VERSIONER_FORTIFY_INLINE __attribute__((annotate("versioner_fortify_inline")))
+#define __VERSIONER_NO_GUARD __attribute__((__annotate__("versioner_no_guard")))
+#define __VERSIONER_FORTIFY_INLINE __attribute__((__annotate__("versioner_fortify_inline")))
 
 #else
 
@@ -47,16 +47,16 @@
 // libc++ doesn't currently guard these calls. There's no risk to the apps though because using
 // those APIs will still cause a link error.
 #if defined(__ANDROID_UNAVAILABLE_SYMBOLS_ARE_WEAK__)
-#define __BIONIC_AVAILABILITY(__what) __attribute__((__availability__(android,__what)))
+#define __BIONIC_AVAILABILITY(__what, ...) __attribute__((__availability__(android,__what __VA_OPT__(,) __VA_ARGS__)))
 #define __INTRODUCED_IN_NO_GUARD_FOR_NDK(api_level) __INTRODUCED_IN(api_level)
 #else
-#define __BIONIC_AVAILABILITY(__what) __attribute__((__availability__(android,strict,__what)))
+#define __BIONIC_AVAILABILITY(__what, ...) __attribute__((__availability__(android,strict,__what __VA_OPT__(,) __VA_ARGS__)))
 #define __INTRODUCED_IN_NO_GUARD_FOR_NDK(api_level)
 #endif
 
 #define __INTRODUCED_IN(api_level) __BIONIC_AVAILABILITY(introduced=api_level)
-#define __DEPRECATED_IN(api_level) __BIONIC_AVAILABILITY(deprecated=api_level)
-#define __REMOVED_IN(api_level) __BIONIC_AVAILABILITY(obsoleted=api_level)
+#define __DEPRECATED_IN(api_level, msg) __BIONIC_AVAILABILITY(deprecated=api_level, message=msg)
+#define __REMOVED_IN(api_level, msg) __BIONIC_AVAILABILITY(obsoleted=api_level, message=msg)
 
 // The same availability attribute can't be annotated multiple times. Therefore, the macros are
 // defined for the configuration that it is valid for so that declarations like the below doesn't
@@ -76,3 +76,9 @@
 #define __VERSIONER_FORTIFY_INLINE
 
 #endif  // defined(__BIONIC_VERSIONER)
+
+// Vendor modules do not follow SDK versioning. Ignore NDK guards for vendor modules.
+#if defined(__ANDROID_VENDOR__)
+#undef __BIONIC_AVAILABILITY
+#define __BIONIC_AVAILABILITY(api_level, ...)
+#endif // defined(__ANDROID_VENDOR__)
diff --git a/libc/include/bits/elf_common.h b/libc/include/bits/elf_common.h
index 0856f45..13d4fbf 100644
--- a/libc/include/bits/elf_common.h
+++ b/libc/include/bits/elf_common.h
@@ -1,5 +1,5 @@
 /*-
- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ * SPDX-License-Identifier: BSD-2-Clause
  *
  * Copyright (c) 2017, 2018 Dell EMC
  * Copyright (c) 2000, 2001, 2008, 2011, David E. O'Brien
@@ -26,8 +26,6 @@
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
- *
- * $FreeBSD$
  */
 
 #ifndef _SYS_ELF_COMMON_H_
@@ -38,6 +36,26 @@
  */
 
 /*
+ * Note header.  The ".note" section contains an array of notes.  Each
+ * begins with this header, aligned to a word boundary.  Immediately
+ * following the note header is n_namesz bytes of name, padded to the
+ * next word boundary.  Then comes n_descsz bytes of descriptor, again
+ * padded to a word boundary.  The values of n_namesz and n_descsz do
+ * not include the padding.
+ */
+
+#if 0 // android-added
+#if !defined(LOCORE) && !defined(__ASSEMBLER__)
+typedef struct {
+	u_int32_t	n_namesz;	/* Length of name. */
+	u_int32_t	n_descsz;	/* Length of descriptor. */
+	u_int32_t	n_type;		/* Type of this note. */
+} Elf_Note;
+typedef Elf_Note Elf_Nhdr;
+#endif
+#endif // android-added
+
+/*
  * Option kinds.
  */
 #define	ODK_NULL	0	/* undefined */
@@ -92,6 +110,21 @@
 #define	OGP_GROUP	0x0000ffff	/* GP group number */
 #define	OGP_SELF	0x00010000	/* GP group is self-contained */
 
+/*
+ * The header for GNU-style hash sections.
+ */
+
+#if 0 // android-added
+#if !defined(LOCORE) && !defined(__ASSEMBLER__)
+typedef struct {
+	u_int32_t	gh_nbuckets;	/* Number of hash buckets. */
+	u_int32_t	gh_symndx;	/* First visible symbol in .dynsym. */
+	u_int32_t	gh_maskwords;	/* #maskwords used in bloom filter. */
+	u_int32_t	gh_shift2;	/* Bloom filter shift count. */
+} Elf_GNU_Hash_Header;
+#endif
+#endif
+
 /* Indexes into the e_ident array.  Keep synced with
    http://www.sco.com/developers/gabi/latest/ch4.eheader.html */
 #define	EI_MAG0		0	/* Magic number, byte 0. */
@@ -153,7 +186,9 @@
 #define	ELFOSABI_ARM		97	/* ARM */
 #define	ELFOSABI_STANDALONE	255	/* Standalone (embedded) application */
 
+#define	ELFOSABI_SYSV		ELFOSABI_NONE	/* symbol used in old spec */
 #define	ELFOSABI_MONTEREY	ELFOSABI_AIX	/* Monterey */
+#define	ELFOSABI_GNU		ELFOSABI_LINUX
 
 /* e_ident */
 #define	IS_ELF(ehdr)	((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \
@@ -299,6 +334,7 @@
 #define	EF_ARM_EABI_VER3	0x03000000
 #define	EF_ARM_EABI_VER4	0x04000000
 #define	EF_ARM_EABI_VER5	0x05000000
+#define	EF_ARM_EABI_VERSION(x)	((x) & EF_ARM_EABIMASK)
 #define	EF_ARM_INTERWORK	0x00000004
 #define	EF_ARM_APCS_26		0x00000008
 #define	EF_ARM_APCS_FLOAT	0x00000010
@@ -418,12 +454,12 @@
 #define	SHT_HIOS		0x6fffffff	/* Last of OS specific semantics */
 #define	SHT_LOPROC		0x70000000	/* reserved range for processor */
 #define	SHT_X86_64_UNWIND	0x70000001	/* unwind information */
-#define	SHT_AMD64_UNWIND	SHT_X86_64_UNWIND
+#define	SHT_AMD64_UNWIND	SHT_X86_64_UNWIND 
 
 #define	SHT_ARM_EXIDX		0x70000001	/* Exception index table. */
-#define	SHT_ARM_PREEMPTMAP	0x70000002	/* BPABI DLL dynamic linking
+#define	SHT_ARM_PREEMPTMAP	0x70000002	/* BPABI DLL dynamic linking 
 						   pre-emption map. */
-#define	SHT_ARM_ATTRIBUTES	0x70000003	/* Object file compatibility
+#define	SHT_ARM_ATTRIBUTES	0x70000003	/* Object file compatibility 
 						   attributes. */
 #define	SHT_ARM_DEBUGOVERLAY	0x70000004	/* See DBGOVL for details. */
 #define	SHT_ARM_OVERLAYSECTION	0x70000005	/* See DBGOVL for details. */
@@ -499,6 +535,9 @@
 #define	PT_TLS		7	/* Thread local storage segment */
 #define	PT_LOOS		0x60000000	/* First OS-specific. */
 #define	PT_SUNW_UNWIND	0x6464e550	/* amd64 UNWIND program header */
+// android-removed: #define	PT_GNU_EH_FRAME	0x6474e550
+// android-removed: #define	PT_GNU_STACK	0x6474e551
+// android-removed: #define	PT_GNU_RELRO	0x6474e552
 #define	PT_DUMP_DELTA	0x6fb5d000	/* va->pa map for kernel dumps
 					   (currently arm). */
 #define	PT_LOSUNW	0x6ffffffa
@@ -648,11 +687,6 @@
 #define	DT_AARCH64_BTI_PLT		0x70000001
 #define	DT_AARCH64_PAC_PLT		0x70000003
 #define	DT_AARCH64_VARIANT_PCS		0x70000005
-#define DT_AARCH64_MEMTAG_MODE		0x70000009
-#define DT_AARCH64_MEMTAG_HEAP		0x7000000b
-#define DT_AARCH64_MEMTAG_STACK		0x7000000c
-#define DT_AARCH64_MEMTAG_GLOBALS	0x7000000d
-#define DT_AARCH64_MEMTAG_GLOBALSSZ	0x7000000f
 
 #define	DT_ARM_SYMTABSZ			0x70000001
 #define	DT_ARM_PREEMPTMAP		0x70000002
@@ -810,6 +844,7 @@
 
 #define	GNU_PROPERTY_AARCH64_FEATURE_1_AND	0xc0000000
 
+// android-removed: #define	GNU_PROPERTY_AARCH64_FEATURE_1_BTI	0x00000001
 #define	GNU_PROPERTY_AARCH64_FEATURE_1_PAC	0x00000002
 
 #define	GNU_PROPERTY_X86_FEATURE_1_AND		0xc0000002
@@ -918,6 +953,49 @@
 #define	ELFCOMPRESS_LOPROC	0x70000000	/* Processor-specific */
 #define	ELFCOMPRESS_HIPROC	0x7fffffff
 
+#if 0 // android-added
+/* Values for a_type. */
+#define	AT_NULL		0	/* Terminates the vector. */
+#define	AT_IGNORE	1	/* Ignored entry. */
+#define	AT_EXECFD	2	/* File descriptor of program to load. */
+#define	AT_PHDR		3	/* Program header of program already loaded. */
+#define	AT_PHENT	4	/* Size of each program header entry. */
+#define	AT_PHNUM	5	/* Number of program header entries. */
+#define	AT_PAGESZ	6	/* Page size in bytes. */
+#define	AT_BASE		7	/* Interpreter's base address. */
+#define	AT_FLAGS	8	/* Flags. */
+#define	AT_ENTRY	9	/* Where interpreter should transfer control. */
+#define	AT_NOTELF	10	/* Program is not ELF ?? */
+#define	AT_UID		11	/* Real uid. */
+#define	AT_EUID		12	/* Effective uid. */
+#define	AT_GID		13	/* Real gid. */
+#define	AT_EGID		14	/* Effective gid. */
+#define	AT_EXECPATH	15	/* Path to the executable. */
+#define	AT_CANARY	16	/* Canary for SSP. */
+#define	AT_CANARYLEN	17	/* Length of the canary. */
+#define	AT_OSRELDATE	18	/* OSRELDATE. */
+#define	AT_NCPUS	19	/* Number of CPUs. */
+#define	AT_PAGESIZES	20	/* Pagesizes. */
+#define	AT_PAGESIZESLEN	21	/* Number of pagesizes. */
+#define	AT_TIMEKEEP	22	/* Pointer to timehands. */
+#define	AT_STACKPROT	23	/* Initial stack protection. */
+#define	AT_EHDRFLAGS	24	/* e_flags field from elf hdr */
+#define	AT_HWCAP	25	/* CPU feature flags. */
+#define	AT_HWCAP2	26	/* CPU feature flags 2. */
+#define	AT_BSDFLAGS	27	/* ELF BSD Flags. */
+#define	AT_ARGC		28	/* Argument count */
+#define	AT_ARGV		29	/* Argument vector */
+#define	AT_ENVC		30	/* Environment count */
+#define	AT_ENVV		31	/* Environment vector */
+#define	AT_PS_STRINGS	32	/* struct ps_strings */
+#define	AT_FXRNG	33	/* Pointer to root RNG seed version. */
+#define	AT_KPRELOAD	34	/* Base of vdso, preloaded by rtld */
+#define	AT_USRSTACKBASE	35	/* Top of user stack */
+#define	AT_USRSTACKLIM	36	/* Grow limit of user stack */
+
+#define	AT_COUNT	37	/* Count of defined aux entry types. */
+#endif // android-added
+
 /*
  * Relocation types.
  *
@@ -1087,7 +1165,7 @@
 #define	R_IA_64_PCREL22		0x7a	/* immediate22	S + A - P */
 #define	R_IA_64_PCREL64I	0x7b	/* immediate64	S + A - P */
 #define	R_IA_64_IPLTMSB		0x80	/* function descriptor MSB special */
-#define	R_IA_64_IPLTLSB		0x81	/* function descriptor LSB speciaal */
+#define	R_IA_64_IPLTLSB		0x81	/* function descriptor LSB special */
 #define	R_IA_64_SUB		0x85	/* immediate64	A - S */
 #define	R_IA_64_LTOFF22X	0x86	/* immediate22	special */
 #define	R_IA_64_LDXMOV		0x87	/* immediate22	special */
@@ -1248,7 +1326,6 @@
 
 /*
  * RISC-V relocation types.
- * https://github.com/riscv-non-isa/riscv-elf-psabi-doc/blob/master/riscv-elf.adoc#relocations
  */
 
 /* Relocation types used by the dynamic linker. */
@@ -1264,7 +1341,6 @@
 #define	R_RISCV_TLS_DTPREL64	9
 #define	R_RISCV_TLS_TPREL32	10
 #define	R_RISCV_TLS_TPREL64	11
-#define	R_RISCV_TLSDESC    	12
 
 /* Relocation types not used by the dynamic linker. */
 #define	R_RISCV_BRANCH		16
@@ -1292,8 +1368,6 @@
 #define	R_RISCV_SUB16		38
 #define	R_RISCV_SUB32		39
 #define	R_RISCV_SUB64		40
-#define	R_RISCV_GNU_VTINHERIT	41
-#define	R_RISCV_GNU_VTENTRY	42
 #define	R_RISCV_ALIGN		43
 #define	R_RISCV_RVC_BRANCH	44
 #define	R_RISCV_RVC_JUMP	45
@@ -1306,13 +1380,6 @@
 #define	R_RISCV_SET32		56
 #define	R_RISCV_32_PCREL	57
 #define	R_RISCV_IRELATIVE	58
-#define	R_RISCV_PLT32		59
-#define	R_RISCV_SET_ULEB128	60
-#define	R_RISCV_SUB_ULEB128	61
-#define	R_RISCV_TLSDESC_HI20	62
-#define	R_RISCV_TLSDESC_LOAD_LO12 63
-#define	R_RISCV_TLSDESC_ADD_LO12 64
-#define	R_RISCV_TLSDESC_CALL	65
 
 #define	R_SPARC_NONE		0
 #define	R_SPARC_8		1
diff --git a/libc/include/bits/fcntl.h b/libc/include/bits/fcntl.h
index 597aa6e..ee5a6e1 100644
--- a/libc/include/bits/fcntl.h
+++ b/libc/include/bits/fcntl.h
@@ -43,6 +43,6 @@
  *
  * The return value depends on the operation.
  */
-int fcntl(int __fd, int __cmd, ...);
+int fcntl(int __fd, int __op, ...);
 
 __END_DECLS
diff --git a/libc/include/bits/glibc-syscalls.h b/libc/include/bits/glibc-syscalls.h
index 83fb257..eceb334 100644
--- a/libc/include/bits/glibc-syscalls.h
+++ b/libc/include/bits/glibc-syscalls.h
@@ -552,6 +552,9 @@
 #if defined(__NR_listen)
   #define SYS_listen __NR_listen
 #endif
+#if defined(__NR_listmount)
+  #define SYS_listmount __NR_listmount
+#endif
 #if defined(__NR_listxattr)
   #define SYS_listxattr __NR_listxattr
 #endif
@@ -576,6 +579,15 @@
 #if defined(__NR_lsetxattr)
   #define SYS_lsetxattr __NR_lsetxattr
 #endif
+#if defined(__NR_lsm_get_self_attr)
+  #define SYS_lsm_get_self_attr __NR_lsm_get_self_attr
+#endif
+#if defined(__NR_lsm_list_modules)
+  #define SYS_lsm_list_modules __NR_lsm_list_modules
+#endif
+#if defined(__NR_lsm_set_self_attr)
+  #define SYS_lsm_set_self_attr __NR_lsm_set_self_attr
+#endif
 #if defined(__NR_lstat)
   #define SYS_lstat __NR_lstat
 #endif
@@ -1218,6 +1230,9 @@
 #if defined(__NR_statfs64)
   #define SYS_statfs64 __NR_statfs64
 #endif
+#if defined(__NR_statmount)
+  #define SYS_statmount __NR_statmount
+#endif
 #if defined(__NR_statx)
   #define SYS_statx __NR_statx
 #endif
diff --git a/libc/include/bits/ioctl.h b/libc/include/bits/ioctl.h
index fd31a58..260eb7d 100644
--- a/libc/include/bits/ioctl.h
+++ b/libc/include/bits/ioctl.h
@@ -40,7 +40,7 @@
 /**
  * [ioctl(2)](http://man7.org/linux/man-pages/man2/ioctl.2.html) operates on device files.
  */
-int ioctl(int __fd, int __request, ...);
+int ioctl(int __fd, int __op, ...);
 
 /*
  * Work around unsigned -> signed conversion warnings: many common ioctl
@@ -57,7 +57,7 @@
  */
 #if !defined(BIONIC_IOCTL_NO_SIGNEDNESS_OVERLOAD)
 /* enable_if(1) just exists to break overloading ties. */
-int ioctl(int __fd, unsigned __request, ...) __overloadable __enable_if(1, "") __RENAME(ioctl);
+int ioctl(int __fd, unsigned __op, ...) __overloadable __enable_if(1, "") __RENAME(ioctl);
 #endif
 
 __END_DECLS
diff --git a/libc/include/bits/lockf.h b/libc/include/bits/lockf.h
index ec6e53c..d9f5987 100644
--- a/libc/include/bits/lockf.h
+++ b/libc/include/bits/lockf.h
@@ -56,12 +56,12 @@
  *
  * See also flock().
  */
-int lockf(int __fd, int __cmd, off_t __length) __RENAME_IF_FILE_OFFSET64(lockf64) __INTRODUCED_IN(24);
+int lockf(int __fd, int __op, off_t __length) __RENAME_IF_FILE_OFFSET64(lockf64) __INTRODUCED_IN(24);
 
 /**
  * Like lockf() but allows using a 64-bit length
  * even from a 32-bit process without `_FILE_OFFSET_BITS=64`.
  */
-int lockf64(int __fd, int __cmd, off64_t __length) __INTRODUCED_IN(24);
+int lockf64(int __fd, int __op, off64_t __length) __INTRODUCED_IN(24);
 
 __END_DECLS
diff --git a/libc/include/bits/page_size.h b/libc/include/bits/page_size.h
index ca434e5..594ffe5 100644
--- a/libc/include/bits/page_size.h
+++ b/libc/include/bits/page_size.h
@@ -32,7 +32,16 @@
 
 __BEGIN_DECLS
 
-#if !defined(__BIONIC_NO_PAGE_SIZE_MACRO)
+// PAGE_SIZE is going away in Android. Prefer getpagesize() instead.
+//
+// For more info, see https://developer.android.com/16kb-page-size.
+//
+// To restore the original behavior, use __BIONIC_DEPRECATED_PAGE_SIZE_MACRO.
+
+#if (defined(__NDK_MAJOR__) && __NDK_MAJOR__ <= 27 && !defined(__BIONIC_NO_PAGE_SIZE_MACRO)) \
+    || defined(__BIONIC_DEPRECATED_PAGE_SIZE_MACRO) \
+    || defined(__arm__) \
+    || defined(__i386__)
 #define PAGE_SIZE 4096
 #define PAGE_MASK (~(PAGE_SIZE - 1))
 #endif
diff --git a/libc/include/bits/stdatomic.h b/libc/include/bits/stdatomic.h
index fe3d68d..c74eafd 100644
--- a/libc/include/bits/stdatomic.h
+++ b/libc/include/bits/stdatomic.h
@@ -138,11 +138,11 @@
  * 7.17.4 Fences.
  */
 
-static __inline void atomic_thread_fence(memory_order __order __attribute__((unused))) {
+static __inline void atomic_thread_fence(memory_order __order __attribute__((__unused__))) {
 	__c11_atomic_thread_fence(__order);
 }
 
-static __inline void atomic_signal_fence(memory_order __order __attribute__((unused))) {
+static __inline void atomic_signal_fence(memory_order __order __attribute__((__unused__))) {
 	__c11_atomic_signal_fence(__order);
 }
 
diff --git a/libc/include/bits/struct_file.h b/libc/include/bits/struct_file.h
index abbd320..8cb8d28 100644
--- a/libc/include/bits/struct_file.h
+++ b/libc/include/bits/struct_file.h
@@ -39,6 +39,6 @@
 #else
   char __private[84];
 #endif
-} __attribute__((aligned(sizeof(void*))));
+} __attribute__((__aligned__(sizeof(void*))));
 
 __END_DECLS
diff --git a/libc/include/bits/sysconf.h b/libc/include/bits/sysconf.h
index 8607adf..ecf26ba 100644
--- a/libc/include/bits/sysconf.h
+++ b/libc/include/bits/sysconf.h
@@ -26,172 +26,324 @@
  * SUCH DAMAGE.
  */
 
-#ifndef _BITS_SYSCONF_H_
-#define _BITS_SYSCONF_H_
+#pragma once
 
 #include <sys/cdefs.h>
 
-/* as listed by Posix sysconf() description */
-/* most of these will return -1 and ENOSYS  */
-
-#define _SC_ARG_MAX             0x0000
-#define _SC_BC_BASE_MAX         0x0001
-#define _SC_BC_DIM_MAX          0x0002
-#define _SC_BC_SCALE_MAX        0x0003
-#define _SC_BC_STRING_MAX       0x0004
-#define _SC_CHILD_MAX           0x0005
-#define _SC_CLK_TCK             0x0006
-#define _SC_COLL_WEIGHTS_MAX    0x0007
-#define _SC_EXPR_NEST_MAX       0x0008
-#define _SC_LINE_MAX            0x0009
-#define _SC_NGROUPS_MAX         0x000a
-#define _SC_OPEN_MAX            0x000b
-#define _SC_PASS_MAX            0x000c
-#define _SC_2_C_BIND            0x000d
-#define _SC_2_C_DEV             0x000e
-#define _SC_2_C_VERSION         0x000f  /* Obsolescent in POSIX.1-2008, TODO: remove it. */
-#define _SC_2_CHAR_TERM         0x0010
-#define _SC_2_FORT_DEV          0x0011
-#define _SC_2_FORT_RUN          0x0012
-#define _SC_2_LOCALEDEF         0x0013
-#define _SC_2_SW_DEV            0x0014
-#define _SC_2_UPE               0x0015
-#define _SC_2_VERSION           0x0016
-#define _SC_JOB_CONTROL         0x0017
-#define _SC_SAVED_IDS           0x0018
-#define _SC_VERSION             0x0019
-#define _SC_RE_DUP_MAX          0x001a
-#define _SC_STREAM_MAX          0x001b
-#define _SC_TZNAME_MAX          0x001c
-#define _SC_XOPEN_CRYPT         0x001d
-#define _SC_XOPEN_ENH_I18N      0x001e
-#define _SC_XOPEN_SHM           0x001f
-#define _SC_XOPEN_VERSION       0x0020
-#define _SC_XOPEN_XCU_VERSION   0x0021  /* Obsolescent in POSIX.1-2008, TODO: remove it. */
-#define _SC_XOPEN_REALTIME      0x0022
-#define _SC_XOPEN_REALTIME_THREADS  0x0023
-#define _SC_XOPEN_LEGACY        0x0024
-#define _SC_ATEXIT_MAX          0x0025
-#define _SC_IOV_MAX             0x0026
+/** sysconf() query for the maximum number of bytes of exec() arguments. */
+#define _SC_ARG_MAX 0x0000
+/** sysconf() query for bc(1) behavior equivalent to _POSIX2_BC_BASE_MAX. */
+#define _SC_BC_BASE_MAX 0x0001
+/** sysconf() query for bc(1) behavior equivalent to _POSIX2_BC_DIM_MAX. */
+#define _SC_BC_DIM_MAX 0x0002
+/** sysconf() query for bc(1) behavior equivalent to _POSIX2_BC_SCALE_MAX. */
+#define _SC_BC_SCALE_MAX 0x0003
+/** sysconf() query for bc(1) behavior equivalent to _POSIX2_BC_STRING_MAX. */
+#define _SC_BC_STRING_MAX 0x0004
+/** sysconf() query equivalent to RLIMIT_NPROC. */
+#define _SC_CHILD_MAX 0x0005
+/** sysconf() query equivalent to AT_CLKTCK. */
+#define _SC_CLK_TCK 0x0006
+/** sysconf() query for collation behavior equivalent to _POSIX2_COLL_WEIGHTS_MAX. */
+#define _SC_COLL_WEIGHTS_MAX 0x0007
+/** sysconf() query for expr(1) behavior equivalent to _POSIX2_EXPR_NEST_MAX. */
+#define _SC_EXPR_NEST_MAX 0x0008
+/** sysconf() query for command-line tool behavior equivalent to _POSIX2_LINE_MAX. */
+#define _SC_LINE_MAX 0x0009
+/** sysconf() query equivalent to NGROUPS_MAX. */
+#define _SC_NGROUPS_MAX 0x000a
+/** sysconf() query equivalent to RLIMIT_NOFILE. */
+#define _SC_OPEN_MAX 0x000b
+/** sysconf() query equivalent to PASS_MAX. */
+#define _SC_PASS_MAX 0x000c
+/** sysconf() query equivalent to _POSIX2_C_BIND. */
+#define _SC_2_C_BIND 0x000d
+/** sysconf() query equivalent to _POSIX2_C_DEV. */
+#define _SC_2_C_DEV 0x000e
+/** Obsolescent in POSIX.1-2008. */
+#define _SC_2_C_VERSION 0x000f
+/** sysconf() query equivalent to _POSIX2_CHAR_TERM. */
+#define _SC_2_CHAR_TERM 0x0010
+/** sysconf() query equivalent to _POSIX2_FORT_DEV. */
+#define _SC_2_FORT_DEV 0x0011
+/** sysconf() query equivalent to _POSIX2_FORT_RUN. */
+#define _SC_2_FORT_RUN 0x0012
+/** sysconf() query equivalent to _POSIX2_LOCALEDEF. */
+#define _SC_2_LOCALEDEF 0x0013
+/** sysconf() query equivalent to _POSIX2_SW_DEV. */
+#define _SC_2_SW_DEV 0x0014
+/** sysconf() query equivalent to _POSIX2_UPE. */
+#define _SC_2_UPE 0x0015
+/** sysconf() query equivalent to _POSIX2_VERSION. */
+#define _SC_2_VERSION 0x0016
+/** sysconf() query equivalent to _POSIX_JOB_CONTROL. */
+#define _SC_JOB_CONTROL 0x0017
+/** sysconf() query equivalent to _POSIX_SAVED_IDS. */
+#define _SC_SAVED_IDS 0x0018
+/** sysconf() query equivalent to _POSIX_VERSION. */
+#define _SC_VERSION 0x0019
+/** sysconf() query equivalent to _POSIX_RE_DUP_MAX. */
+#define _SC_RE_DUP_MAX 0x001a
+/** sysconf() query equivalent to FOPEN_MAX. */
+#define _SC_STREAM_MAX 0x001b
+/** sysconf() query equivalent to _POSIX_TZNAME_MAX. */
+#define _SC_TZNAME_MAX 0x001c
+/** sysconf() query equivalent to _XOPEN_CRYPT. */
+#define _SC_XOPEN_CRYPT 0x001d
+/** sysconf() query equivalent to _XOPEN_ENH_I18N. */
+#define _SC_XOPEN_ENH_I18N 0x001e
+/** sysconf() query equivalent to _XOPEN_SHM. */
+#define _SC_XOPEN_SHM 0x001f
+/** sysconf() query equivalent to _XOPEN_VERSION. */
+#define _SC_XOPEN_VERSION 0x0020
+/** Obsolescent in POSIX.1-2008. */
+#define _SC_XOPEN_XCU_VERSION 0x0021
+/** sysconf() query equivalent to _XOPEN_REALTIME. */
+#define _SC_XOPEN_REALTIME 0x0022
+/** sysconf() query equivalent to _XOPEN_REALTIME_THREADS. */
+#define _SC_XOPEN_REALTIME_THREADS 0x0023
+/** sysconf() query equivalent to _XOPEN_LEGACY. */
+#define _SC_XOPEN_LEGACY 0x0024
+/** sysconf() query for the maximum number of atexit() handlers. Unlimited on Android. */
+#define _SC_ATEXIT_MAX 0x0025
+/** sysconf() query equivalent to IOV_MAX. */
+#define _SC_IOV_MAX 0x0026
+/** Same as _SC_IOV_MAX. */
 #define _SC_UIO_MAXIOV _SC_IOV_MAX
-#define _SC_PAGESIZE            0x0027
-#define _SC_PAGE_SIZE           0x0028
-#define _SC_XOPEN_UNIX          0x0029
-#define _SC_XBS5_ILP32_OFF32    0x002a  /* Obsolescent in POSIX.1-2008, TODO: remove it. */
-#define _SC_XBS5_ILP32_OFFBIG   0x002b  /* Obsolescent in POSIX.1-2008, TODO: remove it. */
-#define _SC_XBS5_LP64_OFF64     0x002c  /* Obsolescent in POSIX.1-2008, TODO: remove it. */
-#define _SC_XBS5_LPBIG_OFFBIG   0x002d  /* Obsolescent in POSIX.1-2008, TODO: remove it. */
-#define _SC_AIO_LISTIO_MAX      0x002e
-#define _SC_AIO_MAX             0x002f
+/** Same as _SC_PAGE_SIZE. */
+#define _SC_PAGESIZE 0x0027
+/** sysconf() query equivalent to getpagesize(). */
+#define _SC_PAGE_SIZE 0x0028
+/** sysconf() query equivalent to _XOPEN_UNIX. */
+#define _SC_XOPEN_UNIX 0x0029
+/** Obsolescent in POSIX.1-2008. */
+#define _SC_XBS5_ILP32_OFF32 0x002a
+/** Obsolescent in POSIX.1-2008. */
+#define _SC_XBS5_ILP32_OFFBIG 0x002b
+/** Obsolescent in POSIX.1-2008. */
+#define _SC_XBS5_LP64_OFF64 0x002c
+/** Obsolescent in POSIX.1-2008. */
+#define _SC_XBS5_LPBIG_OFFBIG 0x002d
+/** sysconf() query equivalent to _POSIX_AIO_LISTIO_MAX. */
+#define _SC_AIO_LISTIO_MAX 0x002e
+/** sysconf() query equivalent to _POSIX_AIO_MAX. */
+#define _SC_AIO_MAX 0x002f
+/** Unimplemented on Android. */
 #define _SC_AIO_PRIO_DELTA_MAX  0x0030
-#define _SC_DELAYTIMER_MAX      0x0031
-#define _SC_MQ_OPEN_MAX         0x0032
-#define _SC_MQ_PRIO_MAX         0x0033
-#define _SC_RTSIG_MAX           0x0034
-#define _SC_SEM_NSEMS_MAX       0x0035
-#define _SC_SEM_VALUE_MAX       0x0036
-#define _SC_SIGQUEUE_MAX        0x0037
-#define _SC_TIMER_MAX           0x0038
-#define _SC_ASYNCHRONOUS_IO     0x0039
-#define _SC_FSYNC               0x003a
-#define _SC_MAPPED_FILES        0x003b
-#define _SC_MEMLOCK             0x003c
-#define _SC_MEMLOCK_RANGE       0x003d
-#define _SC_MEMORY_PROTECTION   0x003e
-#define _SC_MESSAGE_PASSING     0x003f
-#define _SC_PRIORITIZED_IO      0x0040
+/** sysconf() query equivalent to _POSIX_DELAYTIMER_MAX. */
+#define _SC_DELAYTIMER_MAX 0x0031
+/** sysconf() query equivalent to _POSIX_MQ_OPEN_MAX. */
+#define _SC_MQ_OPEN_MAX 0x0032
+/** sysconf() query equivalent to _POSIX_MQ_PRIO_MAX. */
+#define _SC_MQ_PRIO_MAX 0x0033
+/** sysconf() query equivalent to RTSIG_MAX. Constant on Android. */
+#define _SC_RTSIG_MAX 0x0034
+/** sysconf() query equivalent to _POSIX_SEM_NSEMS_MAX. Constant on Android. */
+#define _SC_SEM_NSEMS_MAX 0x0035
+/** sysconf() query equivalent to SEM_VALUE_MAX. Constant on Android. */
+#define _SC_SEM_VALUE_MAX 0x0036
+/** sysconf() query equivalent to _POSIX_SIGQUEUE_MAX. */
+#define _SC_SIGQUEUE_MAX 0x0037
+/** sysconf() query equivalent to _POSIX_TIMER_MAX. */
+#define _SC_TIMER_MAX 0x0038
+/** sysconf() query equivalent to _POSIX_ASYNCHRONOUS_IO. */
+#define _SC_ASYNCHRONOUS_IO 0x0039
+/** sysconf() query equivalent to _POSIX_FSYNC. */
+#define _SC_FSYNC 0x003a
+/** sysconf() query equivalent to _POSIX_MAPPED_FILES. */
+#define _SC_MAPPED_FILES 0x003b
+/** sysconf() query equivalent to _POSIX_MEMLOCK. */
+#define _SC_MEMLOCK 0x003c
+/** sysconf() query equivalent to _POSIX_MEMLOCK_RANGE. */
+#define _SC_MEMLOCK_RANGE 0x003d
+/** sysconf() query equivalent to _POSIX_MEMORY_PROTECTION. */
+#define _SC_MEMORY_PROTECTION 0x003e
+/** sysconf() query equivalent to _POSIX_MESSAGE_PASSING. */
+#define _SC_MESSAGE_PASSING 0x003f
+/** sysconf() query equivalent to _POSIX_PRIORITIZED_IO. */
+#define _SC_PRIORITIZED_IO 0x0040
+/** sysconf() query equivalent to _POSIX_PRIORITY_SCHEDULING. */
 #define _SC_PRIORITY_SCHEDULING 0x0041
-#define _SC_REALTIME_SIGNALS    0x0042
-#define _SC_SEMAPHORES          0x0043
-#define _SC_SHARED_MEMORY_OBJECTS  0x0044
-#define _SC_SYNCHRONIZED_IO     0x0045
-#define _SC_TIMERS              0x0046
-#define _SC_GETGR_R_SIZE_MAX    0x0047
-#define _SC_GETPW_R_SIZE_MAX    0x0048
-#define _SC_LOGIN_NAME_MAX      0x0049
-#define _SC_THREAD_DESTRUCTOR_ITERATIONS  0x004a
-#define _SC_THREAD_KEYS_MAX     0x004b
-#define _SC_THREAD_STACK_MIN    0x004c
-#define _SC_THREAD_THREADS_MAX  0x004d
-#define _SC_TTY_NAME_MAX        0x004e
-
-#define _SC_THREADS                     0x004f
-#define _SC_THREAD_ATTR_STACKADDR       0x0050
-#define _SC_THREAD_ATTR_STACKSIZE       0x0051
-#define _SC_THREAD_PRIORITY_SCHEDULING  0x0052
-#define _SC_THREAD_PRIO_INHERIT         0x0053
-#define _SC_THREAD_PRIO_PROTECT         0x0054
-#define _SC_THREAD_SAFE_FUNCTIONS       0x0055
-
-#define _SC_NPROCESSORS_CONF            0x0060
-#define _SC_NPROCESSORS_ONLN            0x0061
-#define _SC_PHYS_PAGES                  0x0062
-#define _SC_AVPHYS_PAGES                0x0063
-#define _SC_MONOTONIC_CLOCK             0x0064
-
-#define _SC_2_PBS               0x0065
-#define _SC_2_PBS_ACCOUNTING    0x0066
-#define _SC_2_PBS_CHECKPOINT    0x0067
-#define _SC_2_PBS_LOCATE        0x0068
-#define _SC_2_PBS_MESSAGE       0x0069
-#define _SC_2_PBS_TRACK         0x006a
-#define _SC_ADVISORY_INFO       0x006b
-#define _SC_BARRIERS            0x006c
-#define _SC_CLOCK_SELECTION     0x006d
-#define _SC_CPUTIME             0x006e
-#define _SC_HOST_NAME_MAX       0x006f
-#define _SC_IPV6                0x0070
-#define _SC_RAW_SOCKETS         0x0071
+/** sysconf() query equivalent to _POSIX_REALTIME_SIGNALS. */
+#define _SC_REALTIME_SIGNALS 0x0042
+/** sysconf() query equivalent to _POSIX_SEMAPHORES. */
+#define _SC_SEMAPHORES 0x0043
+/** sysconf() query equivalent to _POSIX_SHARED_MEMORY_OBJECTS. */
+#define _SC_SHARED_MEMORY_OBJECTS 0x0044
+/** sysconf() query equivalent to _POSIX_SYNCHRONIZED_IO. */
+#define _SC_SYNCHRONIZED_IO 0x0045
+/** sysconf() query equivalent to _POSIX_TIMERS. */
+#define _SC_TIMERS 0x0046
+/** sysconf() query for an initial size for getgrgid_r() and getgrnam_r() buffers. */
+#define _SC_GETGR_R_SIZE_MAX 0x0047
+/** sysconf() query for an initial size for getpwuid_r() and getpwnam_r() buffers. */
+#define _SC_GETPW_R_SIZE_MAX 0x0048
+/** sysconf() query equivalent to LOGIN_NAME_MAX. */
+#define _SC_LOGIN_NAME_MAX 0x0049
+/** sysconf() query equivalent to PTHREAD_DESTRUCTOR_ITERATIONS. */
+#define _SC_THREAD_DESTRUCTOR_ITERATIONS 0x004a
+/** sysconf() query equivalent to PTHREAD_KEYS_MAX. */
+#define _SC_THREAD_KEYS_MAX 0x004b
+/** sysconf() query equivalent to PTHREAD_STACK_MIN. */
+#define _SC_THREAD_STACK_MIN 0x004c
+/** sysconf() query for a maximum number of threads. Unlimited on Android. */
+#define _SC_THREAD_THREADS_MAX 0x004d
+/** sysconf() query equivalent to TTY_NAME_MAX. */
+#define _SC_TTY_NAME_MAX 0x004e
+/** sysconf() query equivalent to _POSIX_THREADS. */
+#define _SC_THREADS 0x004f
+/** sysconf() query equivalent to _POSIX_THREAD_ATTR_STACKADDR. */
+#define _SC_THREAD_ATTR_STACKADDR 0x0050
+/** sysconf() query equivalent to _POSIX_THREAD_ATTR_STACKSIZE. */
+#define _SC_THREAD_ATTR_STACKSIZE 0x0051
+/** sysconf() query equivalent to _POSIX_THREAD_PRIORITY_SCHEDULING. */
+#define _SC_THREAD_PRIORITY_SCHEDULING 0x0052
+/** sysconf() query equivalent to _POSIX_THREAD_PRIO_INHERIT. */
+#define _SC_THREAD_PRIO_INHERIT 0x0053
+/** sysconf() query equivalent to _POSIX_THREAD_PRIO_PROTECT. */
+#define _SC_THREAD_PRIO_PROTECT 0x0054
+/** sysconf() query equivalent to _POSIX_THREAD_SAFE_FUNCTIONS. */
+#define _SC_THREAD_SAFE_FUNCTIONS 0x0055
+/** sysconf() query equivalent to get_nprocs_conf(). */
+#define _SC_NPROCESSORS_CONF 0x0060
+/** sysconf() query equivalent to get_nprocs(). */
+#define _SC_NPROCESSORS_ONLN 0x0061
+/** sysconf() query equivalent to get_phys_pages(). */
+#define _SC_PHYS_PAGES 0x0062
+/** sysconf() query equivalent to get_avphys_pages(). */
+#define _SC_AVPHYS_PAGES 0x0063
+/** sysconf() query equivalent to _POSIX_MONOTONIC_CLOCK. */
+#define _SC_MONOTONIC_CLOCK 0x0064
+/** Obsolescent in POSIX.1-2008. */
+#define _SC_2_PBS 0x0065
+/** Obsolescent in POSIX.1-2008. */
+#define _SC_2_PBS_ACCOUNTING 0x0066
+/** Obsolescent in POSIX.1-2008. */
+#define _SC_2_PBS_CHECKPOINT 0x0067
+/** Obsolescent in POSIX.1-2008. */
+#define _SC_2_PBS_LOCATE 0x0068
+/** Obsolescent in POSIX.1-2008. */
+#define _SC_2_PBS_MESSAGE 0x0069
+/** Obsolescent in POSIX.1-2008. */
+#define _SC_2_PBS_TRACK 0x006a
+/** sysconf() query equivalent to _POSIX_ADVISORY_INFO. */
+#define _SC_ADVISORY_INFO 0x006b
+/** sysconf() query equivalent to _POSIX_BARRIERS. */
+#define _SC_BARRIERS 0x006c
+/** sysconf() query equivalent to _POSIX_CLOCK_SELECTION. */
+#define _SC_CLOCK_SELECTION 0x006d
+/** sysconf() query equivalent to _POSIX_CPUTIME. */
+#define _SC_CPUTIME 0x006e
+/** sysconf() query equivalent to _POSIX_HOST_NAME_MAX. */
+#define _SC_HOST_NAME_MAX 0x006f
+/** sysconf() query equivalent to _POSIX_IPV6. */
+#define _SC_IPV6 0x0070
+/** sysconf() query equivalent to _POSIX_RAW_SOCKETS. */
+#define _SC_RAW_SOCKETS 0x0071
+/** sysconf() query equivalent to _POSIX_READER_WRITER_LOCKS. */
 #define _SC_READER_WRITER_LOCKS 0x0072
-#define _SC_REGEXP              0x0073
-#define _SC_SHELL               0x0074
-#define _SC_SPAWN               0x0075
-#define _SC_SPIN_LOCKS          0x0076
-#define _SC_SPORADIC_SERVER     0x0077
-#define _SC_SS_REPL_MAX         0x0078
-#define _SC_SYMLOOP_MAX         0x0079
-#define _SC_THREAD_CPUTIME      0x007a
-#define _SC_THREAD_PROCESS_SHARED       0x007b
-#define _SC_THREAD_ROBUST_PRIO_INHERIT  0x007c
-#define _SC_THREAD_ROBUST_PRIO_PROTECT  0x007d
-#define _SC_THREAD_SPORADIC_SERVER      0x007e
-#define _SC_TIMEOUTS            0x007f
-#define _SC_TRACE               0x0080
-#define _SC_TRACE_EVENT_FILTER  0x0081
-#define _SC_TRACE_EVENT_NAME_MAX  0x0082
-#define _SC_TRACE_INHERIT       0x0083
-#define _SC_TRACE_LOG           0x0084
-#define _SC_TRACE_NAME_MAX      0x0085
-#define _SC_TRACE_SYS_MAX       0x0086
-#define _SC_TRACE_USER_EVENT_MAX  0x0087
-#define _SC_TYPED_MEMORY_OBJECTS  0x0088
-#define _SC_V7_ILP32_OFF32      0x0089
-#define _SC_V7_ILP32_OFFBIG     0x008a
-#define _SC_V7_LP64_OFF64       0x008b
-#define _SC_V7_LPBIG_OFFBIG     0x008c
-#define _SC_XOPEN_STREAMS       0x008d
-#define _SC_XOPEN_UUCP          0x008e
-
-#define _SC_LEVEL1_ICACHE_SIZE      0x008f
-#define _SC_LEVEL1_ICACHE_ASSOC     0x0090
-#define _SC_LEVEL1_ICACHE_LINESIZE  0x0091
-#define _SC_LEVEL1_DCACHE_SIZE      0x0092
-#define _SC_LEVEL1_DCACHE_ASSOC     0x0093
-#define _SC_LEVEL1_DCACHE_LINESIZE  0x0094
-#define _SC_LEVEL2_CACHE_SIZE       0x0095
-#define _SC_LEVEL2_CACHE_ASSOC      0x0096
-#define _SC_LEVEL2_CACHE_LINESIZE   0x0097
-#define _SC_LEVEL3_CACHE_SIZE       0x0098
-#define _SC_LEVEL3_CACHE_ASSOC      0x0099
-#define _SC_LEVEL3_CACHE_LINESIZE   0x009a
-#define _SC_LEVEL4_CACHE_SIZE       0x009b
-#define _SC_LEVEL4_CACHE_ASSOC      0x009c
-#define _SC_LEVEL4_CACHE_LINESIZE   0x009d
+/** sysconf() query equivalent to _POSIX_REGEXP. */
+#define _SC_REGEXP 0x0073
+/** sysconf() query equivalent to _POSIX_SHELL. */
+#define _SC_SHELL 0x0074
+/** sysconf() query equivalent to _POSIX_SPAWN. */
+#define _SC_SPAWN 0x0075
+/** sysconf() query equivalent to _POSIX_SPIN_LOCKS. */
+#define _SC_SPIN_LOCKS 0x0076
+/** sysconf() query equivalent to _POSIX_SPORADIC_SERVER. */
+#define _SC_SPORADIC_SERVER 0x0077
+/** sysconf() query equivalent to _POSIX_SS_REPL_MAX. */
+#define _SC_SS_REPL_MAX 0x0078
+/** sysconf() query equivalent to _POSIX_SYMLOOP_MAX. */
+#define _SC_SYMLOOP_MAX 0x0079
+/** sysconf() query equivalent to _POSIX_THREAD_CPUTIME. */
+#define _SC_THREAD_CPUTIME 0x007a
+/** sysconf() query equivalent to _POSIX_THREAD_PROCESS_SHARED. */
+#define _SC_THREAD_PROCESS_SHARED 0x007b
+/** sysconf() query equivalent to _POSIX_THREAD_ROBUST_PRIO_INHERIT. */
+#define _SC_THREAD_ROBUST_PRIO_INHERIT 0x007c
+/** sysconf() query equivalent to _POSIX_THREAD_ROBUST_PRIO_PROTECT. */
+#define _SC_THREAD_ROBUST_PRIO_PROTECT 0x007d
+/** sysconf() query equivalent to _POSIX_THREAD_SPORADIC_SERVER. */
+#define _SC_THREAD_SPORADIC_SERVER 0x007e
+/** sysconf() query equivalent to _POSIX_TIMEOUTS. */
+#define _SC_TIMEOUTS 0x007f
+/** Unimplemented. */
+#define _SC_TRACE 0x0080
+/** Unimplemented. */
+#define _SC_TRACE_EVENT_FILTER 0x0081
+/** Unimplemented. */
+#define _SC_TRACE_EVENT_NAME_MAX 0x0082
+/** Unimplemented. */
+#define _SC_TRACE_INHERIT 0x0083
+/** Unimplemented. */
+#define _SC_TRACE_LOG 0x0084
+/** Unimplemented. */
+#define _SC_TRACE_NAME_MAX 0x0085
+/** Unimplemented. */
+#define _SC_TRACE_SYS_MAX 0x0086
+/** Unimplemented. */
+#define _SC_TRACE_USER_EVENT_MAX 0x0087
+/** sysconf() query equivalent to _POSIX_TYPED_MEMORY_OBJECTS. */
+#define _SC_TYPED_MEMORY_OBJECTS 0x0088
+/** sysconf() query equivalent to _POSIX_V7_ILP32_OFF32. */
+#define _SC_V7_ILP32_OFF32 0x0089
+/** sysconf() query equivalent to _POSIX_V7_ILP32_OFFBIG. */
+#define _SC_V7_ILP32_OFFBIG 0x008a
+/** sysconf() query equivalent to _POSIX_V7_ILP64_OFF64. */
+#define _SC_V7_LP64_OFF64 0x008b
+/** sysconf() query equivalent to _POSIX_V7_ILP64_OFFBIG. */
+#define _SC_V7_LPBIG_OFFBIG 0x008c
+/** Unimplemented. */
+#define _SC_XOPEN_STREAMS 0x008d
+/** Meaningless in Android, unsupported in every other libc (but defined by POSIX). */
+#define _SC_XOPEN_UUCP 0x008e
+/** sysconf() query for the L1 instruction cache size. Not available on all architectures. */
+#define _SC_LEVEL1_ICACHE_SIZE 0x008f
+/** sysconf() query for the L1 instruction cache associativity. Not available on all architectures. */
+#define _SC_LEVEL1_ICACHE_ASSOC 0x0090
+/** sysconf() query for the L1 instruction cache line size. Not available on all architectures. */
+#define _SC_LEVEL1_ICACHE_LINESIZE 0x0091
+/** sysconf() query for the L1 data cache size. Not available on all architectures. */
+#define _SC_LEVEL1_DCACHE_SIZE 0x0092
+/** sysconf() query for the L1 data cache associativity. Not available on all architectures. */
+#define _SC_LEVEL1_DCACHE_ASSOC 0x0093
+/** sysconf() query for the L1 data cache line size. Not available on all architectures. */
+#define _SC_LEVEL1_DCACHE_LINESIZE 0x0094
+/** sysconf() query for the L2 cache size. Not available on all architectures. */
+#define _SC_LEVEL2_CACHE_SIZE 0x0095
+/** sysconf() query for the L2 cache associativity. Not available on all architectures. */
+#define _SC_LEVEL2_CACHE_ASSOC 0x0096
+/** sysconf() query for the L2 cache line size. Not available on all architectures. */
+#define _SC_LEVEL2_CACHE_LINESIZE 0x0097
+/** sysconf() query for the L3 cache size. Not available on all architectures. */
+#define _SC_LEVEL3_CACHE_SIZE 0x0098
+/** sysconf() query for the L3 cache associativity. Not available on all architectures. */
+#define _SC_LEVEL3_CACHE_ASSOC 0x0099
+/** sysconf() query for the L3 cache line size. Not available on all architectures. */
+#define _SC_LEVEL3_CACHE_LINESIZE 0x009a
+/** sysconf() query for the L4 cache size. Not available on all architectures. */
+#define _SC_LEVEL4_CACHE_SIZE 0x009b
+/** sysconf() query for the L4 cache associativity. Not available on all architectures. */
+#define _SC_LEVEL4_CACHE_ASSOC 0x009c
+/** sysconf() query for the L4 cache line size. Not available on all architectures. */
+#define _SC_LEVEL4_CACHE_LINESIZE 0x009d
 
 __BEGIN_DECLS
 
+/**
+ * [sysconf(3)](https://man7.org/linux/man-pages/man3/sysconf.3.html)
+ * gets system configuration at runtime, corresponding to the given
+ * `_SC_` constant. See the man page for details on how to interpret
+ * the results.
+ *
+ * For `_SC_` constants where an equivalent is given, it's cheaper on Android
+ * to go straight to that function call --- sysconf() is just a multiplexer.
+ * This may not be true on other systems, and other systems may not support the
+ * direct function, so sysconf() can be useful for portability, though despite
+ * POSIX's best efforts, the exact set of constants that return useful results
+ * will also vary by system.
+ */
 long sysconf(int __name);
 
 __END_DECLS
-
-#endif /* _SYS_SYSCONF_H_ */
diff --git a/libc/include/bits/threads_inlines.h b/libc/include/bits/threads_inlines.h
index 5878e0a..459866e 100644
--- a/libc/include/bits/threads_inlines.h
+++ b/libc/include/bits/threads_inlines.h
@@ -124,7 +124,7 @@
 };
 #pragma clang diagnostic pop
 
-static inline void* _Nonnull __bionic_thrd_trampoline(void* _Nonnull __arg) {
+static __inline void* _Nonnull __bionic_thrd_trampoline(void* _Nonnull __arg) {
   struct __bionic_thrd_data __data =
       *__BIONIC_CAST(static_cast, struct __bionic_thrd_data*, __arg);
   free(__arg);
diff --git a/libc/include/ctype.h b/libc/include/ctype.h
index c15ee56..cb926a4 100644
--- a/libc/include/ctype.h
+++ b/libc/include/ctype.h
@@ -73,9 +73,35 @@
 /** Internal implementation detail. Do not use. */
 extern const char* _ctype_;
 
+/**
+ * Returns the corresponding lower-case character if `ch` is upper-case, or undefined otherwise.
+ *
+ * Prefer tolower() instead.
+ */
+__BIONIC_CTYPE_INLINE int _tolower(int __ch) {
+  return __ch | 0x20;
+}
+
+/**
+ * Returns the corresponding upper-case character if `ch` is lower-case, or undefined otherwise.
+ *
+ * Prefer toupper() instead.
+ */
+__BIONIC_CTYPE_INLINE int _toupper(int __ch) {
+  // Using EOR rather than AND makes no difference on arm, but saves an
+  // instruction on arm64.
+  return __ch ^ 0x20;
+}
+
+/** Internal implementation detail. Do not use. */
+__attribute__((__no_sanitize__("unsigned-integer-overflow")))
+static inline int __bionic_ctype_in_range(unsigned __lo, int __ch, unsigned __hi) {
+  return (__BIONIC_CAST(static_cast, unsigned, __ch) - __lo) < (__hi - __lo + 1);
+}
+
 /** Returns true if `ch` is in `[A-Za-z]`. */
 __BIONIC_CTYPE_INLINE int isalpha(int __ch) {
-  return (__ch >= 'A' && __ch <= 'Z') || (__ch >= 'a' && __ch <= 'z');
+  return __bionic_ctype_in_range('a', _tolower(__ch), 'z');
 }
 
 /** Returns true if `ch` is a space or tab. */
@@ -90,37 +116,37 @@
 
 /** Returns true if `ch` is in `[0-9]`. */
 __BIONIC_CTYPE_INLINE int isdigit(int __ch) {
-  return (__ch >= '0' && __ch <= '9');
+  return __bionic_ctype_in_range('0', __ch, '9');
 }
 
 /** Returns true if `ch` is `[A-Za-z0-9]` or punctuation. */
 __BIONIC_CTYPE_INLINE int isgraph(int __ch) {
-  return (__ch >= '!' && __ch <= '~');
+  return __bionic_ctype_in_range('!', __ch, '~');
 }
 
 /** Returns true if `ch` is in `[a-z]`. */
 __BIONIC_CTYPE_INLINE int islower(int __ch) {
-  return (__ch >= 'a' && __ch <= 'z');
+  return __bionic_ctype_in_range('a', __ch, 'z');
 }
 
 /** Returns true if `ch` is `[A-Za-z0-9]` or punctuation or space. */
 __BIONIC_CTYPE_INLINE int isprint(int __ch) {
-  return (__ch >= ' ' && __ch <= '~');
+  return __bionic_ctype_in_range(' ', __ch, '~');
 }
 
 /** Returns true if `ch` is in `[ \f\n\r\t\v]`. */
 __BIONIC_CTYPE_INLINE int isspace(int __ch) {
-  return __ch == ' ' || (__ch >= '\t' && __ch <= '\r');
+  return __ch == ' ' || __bionic_ctype_in_range('\t', __ch, '\r');
 }
 
 /** Returns true if `ch` is in `[A-Z]`. */
 __BIONIC_CTYPE_INLINE int isupper(int __ch) {
-  return (__ch >= 'A' && __ch <= 'Z');
+  return __bionic_ctype_in_range('A', __ch, 'Z');
 }
 
 /** Returns true if `ch` is in `[0-9A-Fa-f]`. */
 __BIONIC_CTYPE_INLINE int isxdigit(int __ch) {
-  return (__ch >= '0' && __ch <= '9') || (__ch >= 'a' && __ch <= 'f') || (__ch >= 'A' && __ch <= 'F');
+  return isdigit(__ch) || __bionic_ctype_in_range('a', _tolower(__ch), 'f') ;
 }
 
 /** Returns true if `ch` is in `[A-Za-z0-9]`. */
@@ -133,36 +159,14 @@
   return isgraph(__ch) && !isalnum(__ch);
 }
 
-/**
- * Returns the corresponding lower-case character if `ch` is upper-case, or undefined otherwise.
- *
- * Prefer tolower() instead.
- */
-__BIONIC_CTYPE_INLINE int _tolower(int __ch) {
-  return __ch | 0x20;
-}
-
 /** Returns the corresponding lower-case character if `ch` is upper-case, or `ch` otherwise. */
 __BIONIC_CTYPE_INLINE int tolower(int __ch) {
-  if (__ch >= 'A' && __ch <= 'Z') return _tolower(__ch);
-  return __ch;
-}
-
-/**
- * Returns the corresponding upper-case character if `ch` is lower-case, or undefined otherwise.
- *
- * Prefer toupper() instead.
- */
-__BIONIC_CTYPE_INLINE int _toupper(int __ch) {
-  // Using EOR rather than AND makes no difference on arm, but saves an
-  // instruction on arm64.
-  return __ch ^ 0x20;
+  return (__bionic_ctype_in_range('A', __ch, 'Z')) ? _tolower(__ch) : __ch;
 }
 
 /** Returns the corresponding upper-case character if `ch` is lower-case, or `ch` otherwise. */
 __BIONIC_CTYPE_INLINE int toupper(int __ch) {
-  if (__ch >= 'a' && __ch <= 'z') return _toupper(__ch);
-  return __ch;
+  return (__bionic_ctype_in_range('a', __ch, 'z')) ? _toupper(__ch) : __ch;
 }
 
 /** Returns true if `ch` is less than 0x80. */
diff --git a/libc/include/dlfcn.h b/libc/include/dlfcn.h
index 0425031..d65a409 100644
--- a/libc/include/dlfcn.h
+++ b/libc/include/dlfcn.h
@@ -26,25 +26,35 @@
  * SUCH DAMAGE.
  */
 
-#ifndef __DLFCN_H__
-#define __DLFCN_H__
+#pragma once
 
 #include <stdint.h>
 #include <sys/cdefs.h>
 
 __BEGIN_DECLS
 
+/**
+ * dladdr() returns information using this structure.
+ */
 typedef struct {
-  /* Pathname of shared object that contains address. */
+  /** Pathname of the shared object that contains the given address. */
   const char* _Nullable dli_fname;
-  /* Address at which shared object is loaded. */
+  /** Address at which the shared object is loaded. */
   void* _Nullable dli_fbase;
-  /* Name of nearest symbol with address lower than addr. */
+  /** Name of the nearest symbol with an address lower than the given address. */
   const char* _Nullable dli_sname;
-  /* Exact address of symbol named in dli_sname. */
+  /** Exact address of the symbol named in `dli_sname`. */
   void* _Nullable dli_saddr;
 } Dl_info;
 
+/**
+ * [dlopen(3)](http://man7.org/linux/man-pages/man3/dlopen.3.html)
+ * loads the given shared library.
+ *
+ * Returns a pointer to an opaque handle for use with other <dlfcn.h> functions
+ * on success, and returns NULL on failure, in which case dlerror() can be used
+ * to retrieve the specific error.
+ */
 void* _Nullable dlopen(const char* _Nullable __filename, int __flag);
 
 /**
@@ -64,42 +74,115 @@
  * a child process which can later be killed by the parent or call
  * exit() itself.
  *
+ * Note also that dlclose() interacts badly with thread local variables
+ * with non-trivial destructors, with the
+ * (exact behavior varying by API level)[https://android.googlesource.com/platform/bionic/+/main/android-changes-for-ndk-developers.md#dlclose-interacts-badly-with-thread-local-variables-with-non_trivial-destructors].
+ *
  * Returns 0 on success, and returns -1 on failure, in which case
  * dlerror() can be used to retrieve the specific error.
  */
 int dlclose(void* _Nonnull __handle);
 
+/**
+ * [dlerror(3)](http://man7.org/linux/man-pages/man3/dlerror.3.html)
+ * returns a human-readable error message describing the most recent
+ * failure from one of the <dlfcn.h> functions on the calling thread.
+ *
+ * This function also clears the error, so a second call (or a call
+ * before any failure) will return NULL.
+ *
+ * Returns a pointer to an error on success, and returns NULL if no
+ * error is pending.
+ */
 char* _Nullable dlerror(void);
 
-/* (RTLD_DEFAULT is null for LP64, but -1 for LP32) */
+/**
+ * [dlsym(3)](http://man7.org/linux/man-pages/man3/dlsym.3.html)
+ * returns a pointer to the symbol with the given name in the shared
+ * library represented by the given handle. The handle may have been
+ * returned from dlopen(), or can be RTLD_DEFAULT or RTLD_NEXT.
+ *
+ * Returns the address of the symbol on success, and returns NULL on failure,
+ * in which case dlerror() can be used to retrieve the specific error.
+ */
 void* _Nullable dlsym(void* __BIONIC_COMPLICATED_NULLNESS __handle, const char* _Nullable __symbol);
-/* (RTLD_DEFAULT is null for LP64, but -1 for LP32) */
+
+/**
+ * [dlvsym(3)](http://man7.org/linux/man-pages/man3/dlvsym.3.html)
+ * returns a pointer to the symbol with the given name and version in the shared
+ * library represented by the given handle. The handle may have been
+ * returned from dlopen(), or can be RTLD_DEFAULT or RTLD_NEXT.
+ *
+ * Returns the address of the symbol on success, and returns NULL on failure,
+ * in which case dlerror() can be used to retrieve the specific error.
+ */
 void* _Nullable dlvsym(void* __BIONIC_COMPLICATED_NULLNESS __handle, const char* _Nullable __symbol, const char* _Nullable __version) __INTRODUCED_IN(24);
+
+/**
+ * [dladdr(3)](http://man7.org/linux/man-pages/man3/dladdr.3.html)
+ * returns information about the symbol at the given address.
+ *
+ * Returns non-zero on success, and returns 0 on failure. Note that unlike
+ * the other <dlfcn.h> functions, in this case dlerror() will _not_ have
+ * more information.
+ */
 int dladdr(const void* _Nonnull __addr, Dl_info* _Nonnull __info);
 
+/**
+ * A dlsym()/dlvsym() handle that returns the first symbol found in any
+ * shared library using the default search order.
+ */
+#define RTLD_DEFAULT  __BIONIC_CAST(reinterpret_cast, void*, 0)
+
+/**
+ * A dlsym()/dlvsym() handle that returns the first symbol found in any
+ * shared library that appears _after_ the object containing the caller.
+ */
+#define RTLD_NEXT     __BIONIC_CAST(reinterpret_cast, void*, -1L)
+
+/**
+ * A dlopen() flag to not make symbols from this library available to later
+ * libraries. See also RTLD_GLOBAL.
+ */
 #define RTLD_LOCAL    0
+
+/**
+ * Not supported on Android. Android always uses RTLD_NOW for security reasons.
+ * Resolving all undefined symbols before dlopen() returns means that RELRO
+ * protections can be applied to the PLT before dlopen() returns.
+ */
 #define RTLD_LAZY     0x00001
+
+/** A dlopen() flag to resolve all undefined symbols before dlopen() returns. */
 #define RTLD_NOW      0x00002
+
+/**
+ * A dlopen() flag to not actually load the given library;
+ * used to test whether the library is already loaded.
+ */
 #define RTLD_NOLOAD   0x00004
+
+/**
+ * A dlopen() flag to make symbols from this library available to later
+ * libraries. See also RTLD_LOCAL.
+ */
 #define RTLD_GLOBAL   0x00100
+
+/**
+ * A dlopen() flag to ignore later dlclose() calls on this library.
+ */
 #define RTLD_NODELETE 0x01000
 
+/* LP32 has historical ABI breakage. */
 #if !defined(__LP64__)
-/* LP32 is broken for historical reasons. */
+#undef RTLD_DEFAULT
+#define RTLD_DEFAULT  __BIONIC_CAST(reinterpret_cast, void*, 0xffffffff)
+#undef RTLD_NEXT
+#define RTLD_NEXT     __BIONIC_CAST(reinterpret_cast, void*, 0xfffffffe)
 #undef RTLD_NOW
 #define RTLD_NOW      0x00000
 #undef RTLD_GLOBAL
 #define RTLD_GLOBAL   0x00002
 #endif
 
-#if defined (__LP64__)
-#define RTLD_DEFAULT  __BIONIC_CAST(reinterpret_cast, void*, 0)
-#define RTLD_NEXT     __BIONIC_CAST(reinterpret_cast, void*, -1L)
-#else
-#define RTLD_DEFAULT  __BIONIC_CAST(reinterpret_cast, void*, 0xffffffff)
-#define RTLD_NEXT     __BIONIC_CAST(reinterpret_cast, void*, 0xfffffffe)
-#endif
-
 __END_DECLS
-
-#endif
diff --git a/libc/include/elf.h b/libc/include/elf.h
index 81a50db..374d5bb 100644
--- a/libc/include/elf.h
+++ b/libc/include/elf.h
@@ -202,17 +202,11 @@
 #define DF_1_SINGLETON  0x02000000
 #define DF_1_STUB       0x04000000
 
-/* http://www.sco.com/developers/gabi/latest/ch4.eheader.html */
-#define ELFOSABI_SYSV 0 /* Synonym for ELFOSABI_NONE used by valgrind. */
-#define ELFOSABI_GNU 3 /* Synonym for ELFOSABI_LINUX. */
-
 /* http://www.sco.com/developers/gabi/latest/ch4.reloc.html */
 #define ELF32_R_INFO(sym, type) ((((Elf32_Word)sym) << 8) | ((type) & 0xff))
 #define ELF64_R_INFO(sym, type) ((((Elf64_Xword)sym) << 32) | ((type) & 0xffffffff))
 
 /* http://www.sco.com/developers/gabi/latest/ch4.symtab.html */
-#undef ELF_ST_TYPE
-#define ELF_ST_TYPE(x) ((x) & 0xf)
 #define ELF_ST_INFO(b,t) (((b) << 4) + ((t) & 0xf))
 #define ELF32_ST_INFO(b,t) ELF_ST_INFO(b,t)
 #define ELF64_ST_INFO(b,t) ELF_ST_INFO(b,t)
@@ -229,8 +223,6 @@
 #undef SHT_NUM
 #define SHT_NUM 20
 
-#define SHT_RISCV_ATTRIBUTES 0x70000003
-
 /*
  * Experimental support for SHT_RELR sections. For details, see proposal
  * at https://groups.google.com/forum/#!topic/generic-abi/bX460iggiKg.
@@ -260,6 +252,15 @@
 #define DT_ANDROID_RELA 0x60000011 // DT_LOOS + 4
 #define DT_ANDROID_RELASZ 0x60000012 // DT_LOOS + 5
 
+/* arm64 psabi. */
+
+/* TODO: upstreamed to FreeBSD as https://github.com/freebsd/freebsd-src/pull/1141/. */
+#define DT_AARCH64_MEMTAG_MODE 0x70000009
+#define DT_AARCH64_MEMTAG_HEAP 0x7000000b
+#define DT_AARCH64_MEMTAG_STACK 0x7000000c
+#define DT_AARCH64_MEMTAG_GLOBALS 0x7000000d
+#define DT_AARCH64_MEMTAG_GLOBALSSZ 0x7000000f
+
 /* Linux traditionally doesn't have the trailing 64 that BSD has on these. */
 #define R_AARCH64_TLS_DTPREL R_AARCH64_TLS_DTPREL64
 #define R_AARCH64_TLS_DTPMOD R_AARCH64_TLS_DTPMOD64
@@ -269,5 +270,32 @@
 #define R_ARM_TLS_DESC 13
 #define R_ARM_IRELATIVE 160
 
-/* BSD spells this slightly differently to Linux. */
+/* riscv64 psabi. */
+
+/* FreeBSD is missing these, found in
+ * https://github.com/riscv-non-isa/riscv-elf-psabi-doc/blob/master/riscv-elf.adoc#relocations
+ * so I've sent https://github.com/freebsd/freebsd-src/pull/1141 upstream.
+ */
+#define R_RISCV_TLSDESC 12
+#define R_RISCV_PLT32 59
+#define R_RISCV_SET_ULEB128 60
+#define R_RISCV_SUB_ULEB128 61
+#define R_RISCV_TLSDESC_HI20 62
+#define R_RISCV_TLSDESC_LOAD_LO12 63
+#define R_RISCV_TLSDESC_ADD_LO12 64
+#define R_RISCV_TLSDESC_CALL 65
+
+/* https://github.com/riscv-non-isa/riscv-elf-psabi-doc/blob/master/riscv-elf.adoc#program-header-table */
+#define PT_RISCV_ATTRIBUTES 0x70000003
+
+/* https://github.com/riscv-non-isa/riscv-elf-psabi-doc/blob/master/riscv-elf.adoc#section-types */
+#define SHT_RISCV_ATTRIBUTES 0x70000003
+
+/* FreeBSD spells this slightly differently to Linux. Linux is correct according to
+ * https://github.com/riscv-non-isa/riscv-elf-psabi-doc/blob/master/riscv-elf.adoc#file-header
+ * so I've sent https://github.com/freebsd/freebsd-src/pull/1148 upstream.
+ */
+#define EF_RISCV_FLOAT_ABI EF_RISCV_FLOAT_ABI_MASK
+
+/* FreeBSD spells this slightly differently to Linux. */
 #define R_X86_64_JUMP_SLOT R_X86_64_JMP_SLOT
diff --git a/libc/include/fts.h b/libc/include/fts.h
index 8dfd213..aabe2db 100644
--- a/libc/include/fts.h
+++ b/libc/include/fts.h
@@ -119,7 +119,7 @@
 
 FTSENT* _Nullable fts_children(FTS* _Nonnull __fts, int __options);
 int fts_close(FTS* _Nonnull __fts);
-FTS* _Nullable fts_open(char* _Nonnull const* _Nonnull __path, int __options, int (* _Nullable __comparator)(const FTSENT* _Nonnull * _Nonnull  __lhs, const FTSENT* _Nonnull * _Nonnull __rhs));
+FTS* _Nullable fts_open(char* _Nullable const* _Nonnull __path, int __options, int (* _Nullable __comparator)(const FTSENT* _Nonnull * _Nonnull  __lhs, const FTSENT* _Nonnull * _Nonnull __rhs));
 FTSENT* _Nullable fts_read(FTS* _Nonnull __fts);
 int fts_set(FTS* _Nonnull __fts, FTSENT* _Nonnull __entry, int __options);
 
diff --git a/libc/include/limits.h b/libc/include/limits.h
index 48e7ea9..e1f566c 100644
--- a/libc/include/limits.h
+++ b/libc/include/limits.h
@@ -136,6 +136,9 @@
 #define IOV_MAX 1024
 #define SEM_VALUE_MAX 0x3fffffff
 
+/** Do not use: prefer getline() or asprintf() rather than hard-coding an arbitrary size. */
+#define LINE_MAX _POSIX2_LINE_MAX
+
 /* POSIX says these belong in <unistd.h> but BSD has some in <limits.h>. */
 #include <bits/posix_limits.h>
 
@@ -145,9 +148,15 @@
 
 /* >= _POSIX_THREAD_DESTRUCTOR_ITERATIONS */
 #define PTHREAD_DESTRUCTOR_ITERATIONS 4
-/* >= _POSIX_THREAD_KEYS_MAX */
+
+/**
+ * The number of calls to pthread_key_create() without intervening calls to
+ * pthread_key_delete() that are guaranteed to succeed. See pthread_key_create()
+ * for more details and ways to avoid hitting this limit.
+ */
 #define PTHREAD_KEYS_MAX 128
-/* bionic has no specific limit */
+
+/** bionic has no specific limit on the number of threads. */
 #undef PTHREAD_THREADS_MAX
 
 #endif /* !_LIMITS_H_ */
diff --git a/libc/include/link.h b/libc/include/link.h
index 33fea49..ee1fc42 100644
--- a/libc/include/link.h
+++ b/libc/include/link.h
@@ -25,8 +25,13 @@
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
-#ifndef _LINK_H_
-#define _LINK_H_
+
+#pragma once
+
+/**
+ * @file link.h
+ * @brief Extra dynamic linker functionality (see also <dlfcn.h>).
+ */
 
 #include <stdint.h>
 #include <sys/cdefs.h>
@@ -37,32 +42,80 @@
 __BEGIN_DECLS
 
 #if defined(__LP64__)
+/** Convenience macro to get the appropriate 32-bit or 64-bit <elf.h> type for the caller's bitness. */
 #define ElfW(type) Elf64_ ## type
 #else
+/** Convenience macro to get the appropriate 32-bit or 64-bit <elf.h> type for the caller's bitness. */
 #define ElfW(type) Elf32_ ## type
 #endif
 
+/**
+ * Information passed by dl_iterate_phdr() to the callback.
+ */
 struct dl_phdr_info {
+  /** The address of the shared object. */
   ElfW(Addr) dlpi_addr;
+  /** The name of the shared object. */
   const char* _Nullable dlpi_name;
+  /** Pointer to the shared object's program headers. */
   const ElfW(Phdr)* _Nullable dlpi_phdr;
+  /** Number of program headers pointed to by `dlpi_phdr`. */
   ElfW(Half) dlpi_phnum;
 
-  // These fields were added in Android R.
+  /**
+   * The total number of library load events at the time dl_iterate_phdr() was
+   * called.
+   *
+   * This field is only available since API level 30; you can use the size
+   * passed to the callback to determine whether you have the full struct,
+   * or just the fields up to and including `dlpi_phnum`.
+   */
   unsigned long long dlpi_adds;
+  /**
+   * The total number of library unload events at the time dl_iterate_phdr() was
+   * called.
+   *
+   * This field is only available since API level 30; you can use the size
+   * passed to the callback to determine whether you have the full struct,
+   * or just the fields up to and including `dlpi_phnum`.
+   */
   unsigned long long dlpi_subs;
+  /**
+   * The module ID for TLS relocations in this shared object.
+   *
+   * This field is only available since API level 30; you can use the size
+   * passed to the callback to determine whether you have the full struct,
+   * or just the fields up to and including `dlpi_phnum`.
+   */
   size_t dlpi_tls_modid;
+  /**
+   * The caller's TLS data for this shared object.
+   *
+   * This field is only available since API level 30; you can use the size
+   * passed to the callback to determine whether you have the full struct,
+   * or just the fields up to and including `dlpi_phnum`.
+   */
   void* _Nullable dlpi_tls_data;
 };
 
-int dl_iterate_phdr(int (* _Nonnull __callback)(struct dl_phdr_info* _Nonnull, size_t, void* _Nullable), void* _Nullable __data);
+/**
+ * [dl_iterate_phdr(3)](http://man7.org/linux/man-pages/man3/dl_iterate_phdr.3.html)
+ * calls the given callback once for every loaded shared object. The size
+ * argument to the callback lets you determine whether you have a smaller
+ * `dl_phdr_info` from before API level 30, or the newer full one.
+ * The data argument to the callback is whatever you pass as the data argument
+ * to dl_iterate_phdr().
+ *
+ * Returns the value returned by the final call to the callback.
+ */
+int dl_iterate_phdr(int (* _Nonnull __callback)(struct dl_phdr_info* _Nonnull __info, size_t __size, void* _Nullable __data), void* _Nullable __data);
 
 #ifdef __arm__
 typedef uintptr_t _Unwind_Ptr;
 _Unwind_Ptr dl_unwind_find_exidx(_Unwind_Ptr, int* _Nonnull);
 #endif
 
-/* Used by the dynamic linker to communicate with the debugger. */
+/** Used by the dynamic linker to communicate with the debugger. */
 struct link_map {
   ElfW(Addr) l_addr;
   char* _Nullable l_name;
@@ -71,7 +124,7 @@
   struct link_map* _Nullable l_prev;
 };
 
-/* Used by the dynamic linker to communicate with the debugger. */
+/** Used by the dynamic linker to communicate with the debugger. */
 struct r_debug {
   int32_t r_version;
   struct link_map* _Nullable r_map;
@@ -85,5 +138,3 @@
 };
 
 __END_DECLS
-
-#endif
diff --git a/libc/include/malloc.h b/libc/include/malloc.h
index d22b85c..3ebc1be 100644
--- a/libc/include/malloc.h
+++ b/libc/include/malloc.h
@@ -110,7 +110,7 @@
  * [malloc_usable_size(3)](http://man7.org/linux/man-pages/man3/malloc_usable_size.3.html)
  * returns the actual size of the given heap block.
  */
-size_t malloc_usable_size(const void* _Nullable __ptr);
+size_t malloc_usable_size(const void* _Nullable __ptr) __wur;
 
 #define __MALLINFO_BODY \
   /** Total number of non-mmapped bytes currently allocated from OS. */ \
@@ -186,7 +186,11 @@
 int malloc_info(int __must_be_zero, FILE* _Nonnull __fp) __INTRODUCED_IN(23);
 
 /**
- * mallopt() option to set the decay time. Valid values are 0 and 1.
+ * mallopt() option to set the decay time. Valid values are -1, 0 and 1.
+ *   -1 : Disable the releasing of unused pages. This value is available since
+ *        API level 35.
+ *    0 : Release the unused pages immediately.
+ *    1 : Release the unused pages at a device-specific interval.
  *
  * Available since API level 27.
  */
diff --git a/libc/include/math.h b/libc/include/math.h
index fc6c228..343ab98 100644
--- a/libc/include/math.h
+++ b/libc/include/math.h
@@ -68,10 +68,7 @@
 
 #define isnormal(x) __builtin_isnormal(x)
 
-#define signbit(x) \
-    ((sizeof(x) == sizeof(float)) ? __builtin_signbitf(x) \
-    : (sizeof(x) == sizeof(double)) ? __builtin_signbit(x) \
-    : __builtin_signbitl(x))
+#define signbit(x) __builtin_signbit(x)
 
 double acos(double __x);
 float acosf(float __x);
@@ -308,20 +305,6 @@
 #define islessgreater(x, y) __builtin_islessgreater((x), (y))
 #define isunordered(x, y) __builtin_isunordered((x), (y))
 
-/*
- * https://code.google.com/p/android/issues/detail?id=271629
- * To be fully compliant with C++, we need to not define these (C doesn't
- * specify them either). Exposing these means that isinf and isnan will have a
- * return type of int in C++ rather than bool like they're supposed to be.
- *
- * GNU libstdc++ 4.9 isn't able to handle a standard compliant C library. Its
- * <cmath> will `#undef isnan` from math.h and only adds the function overloads
- * to the std namespace, making it impossible to use both <cmath> (which gets
- * included by a lot of other standard headers) and ::isnan.
- */
-int (isinf)(double __x) __attribute_const__;
-int (isnan)(double __x) __attribute_const__;
-
 /* POSIX extensions. */
 
 extern int signgam;
@@ -362,6 +345,7 @@
 double scalb(double __x, double __exponent);
 double drem(double __x, double __y);
 int finite(double __x) __attribute_const__;
+int isinff(float __x) __attribute_const__;
 int isnanf(float __x) __attribute_const__;
 double gamma_r(double __x, int* _Nonnull __sign);
 double lgamma_r(double __x, int* _Nonnull __sign);
@@ -402,6 +386,8 @@
 #define M_2_SQRTPIl     1.128379167095512573896158903121545172L /* 2/sqrt(pi) */
 #define M_SQRT2l        1.414213562373095048801688724209698079L /* sqrt(2) */
 #define M_SQRT1_2l      0.707106781186547524400844362104849039L /* 1/sqrt(2) */
+int isinfl(long double __x) __attribute_const__;
+int isnanl(long double __x) __attribute_const__;
 #endif
 
 __END_DECLS
diff --git a/libc/include/netinet/ether.h b/libc/include/netinet/ether.h
index d570c18..4af7eda 100644
--- a/libc/include/netinet/ether.h
+++ b/libc/include/netinet/ether.h
@@ -40,7 +40,7 @@
 
 /**
  * [ether_ntoa(3)](http://man7.org/linux/man-pages/man3/ether_ntoa.3.html) returns a string
- * representation of the given Ethernet address.
+ * representation of the given Ethernet (MAC) address.
  *
  * Returns a pointer to a static buffer.
  */
@@ -48,7 +48,7 @@
 
 /**
  * [ether_ntoa_r(3)](http://man7.org/linux/man-pages/man3/ether_ntoa_r.3.html) returns a string
- * representation of the given Ethernet address.
+ * representation of the given Ethernet (MAC) address.
  *
  * Returns a pointer to the given buffer.
  */
@@ -56,7 +56,7 @@
 
 /**
  * [ether_aton(3)](http://man7.org/linux/man-pages/man3/ether_aton.3.html) returns an `ether_addr`
- * corresponding to the given Ethernet address string.
+ * corresponding to the given Ethernet (MAC) address string.
  *
  * Returns a pointer to a static buffer, or NULL if the given string isn't a valid MAC address.
  */
@@ -64,7 +64,7 @@
 
 /**
  * [ether_aton_r(3)](http://man7.org/linux/man-pages/man3/ether_aton_r.3.html) returns an
- * `ether_addr` corresponding to the given Ethernet address string.
+ * `ether_addr` corresponding to the given Ethernet (MAC) address string.
  *
  * Returns a pointer to the given buffer, or NULL if the given string isn't a valid MAC address.
  */
diff --git a/libc/private/bionic_asm_offsets.h b/libc/include/netinet/igmp.h
similarity index 67%
copy from libc/private/bionic_asm_offsets.h
copy to libc/include/netinet/igmp.h
index e72adda..497d02d 100644
--- a/libc/private/bionic_asm_offsets.h
+++ b/libc/include/netinet/igmp.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2023 The Android Open Source Project
+ * Copyright (C) 2024 The Android Open Source Project
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -28,6 +28,29 @@
 
 #pragma once
 
-#if defined(__aarch64__)
-#define OFFSETOF_libc_globals_memtag_stack 64
-#endif
+/**
+ * @file netinet/igmp.h
+ * @brief Internet Group Management Protocol (IGMP).
+ */
+
+#include <sys/cdefs.h>
+#include <netinet/in.h>
+
+#include <linux/igmp.h>
+
+/**
+ * The uapi type is called `igmphdr`,
+ * doesn't have the `igmp_` prefix on each field,
+ * and uses a `__be32` for the group address.
+ *
+ * This is the type that BSDs and musl/glibc expose to userspace.
+ */
+struct igmp {
+  uint8_t igmp_type;
+  uint8_t igmp_code;
+  uint16_t igmp_cksum;
+  struct in_addr igmp_group;
+};
+
+/** Commonly-used BSD synonym for the Linux constant. */
+#define IGMP_MEMBERSHIP_QUERY IGMP_HOST_MEMBERSHIP_QUERY
diff --git a/libc/include/pthread.h b/libc/include/pthread.h
index 871c62c..ef41e2d 100644
--- a/libc/include/pthread.h
+++ b/libc/include/pthread.h
@@ -174,7 +174,29 @@
 
 int pthread_join(pthread_t __pthread, void* _Nullable * _Nullable __return_value_ptr);
 
+/**
+ * [pthread_key_create(3)](https://man7.org/linux/man-pages/man3/pthread_key_create.3p.html)
+ * creates a key for thread-specific data.
+ *
+ * There is a limit of `PTHREAD_KEYS_MAX` keys per process, but most callers
+ * should just use the C or C++ `thread_local` storage specifier anyway. When
+ * targeting new enough OS versions, the compiler will automatically use
+ * ELF TLS; when targeting old OS versions the emutls implementation will
+ * multiplex pthread keys behind the scenes, using one per library rather than
+ * one per thread-local variable. If you are implementing the runtime for a
+ * different language, you should consider similar implementation choices and
+ * avoid a direct one-to-one mapping from thread locals to pthread keys.
+ *
+ * Returns 0 on success and returns an error number on failure.
+ */
 int pthread_key_create(pthread_key_t* _Nonnull __key_ptr, void (* _Nullable __key_destructor)(void* _Nullable));
+
+/**
+ * [pthread_key_delete(3)](https://man7.org/linux/man-pages/man3/pthread_key_delete.3p.html)
+ * deletes a key for thread-specific data.
+ *
+ * Returns 0 on success and returns an error number on failure.
+ */
 int pthread_key_delete(pthread_key_t __key);
 
 int pthread_mutexattr_destroy(pthread_mutexattr_t* _Nonnull __attr);
diff --git a/libc/include/sched.h b/libc/include/sched.h
index b1f1842..9f043b6 100644
--- a/libc/include/sched.h
+++ b/libc/include/sched.h
@@ -99,7 +99,7 @@
 };
 
 /**
- * [sched_setscheduler(2)](http://man7.org/linux/man-pages/man2/sched_getcpu.2.html)
+ * [sched_setscheduler(2)](https://man7.org/linux/man-pages/man2/sched_setscheduler.2.html)
  * sets the scheduling policy and associated parameters for the given thread.
  *
  * Returns 0 on success and returns -1 and sets `errno` on failure.
@@ -107,7 +107,7 @@
 int sched_setscheduler(pid_t __pid, int __policy, const struct sched_param* _Nonnull __param);
 
 /**
- * [sched_getscheduler(2)](http://man7.org/linux/man-pages/man2/sched_getcpu.2.html)
+ * [sched_getscheduler(2)](https://man7.org/linux/man-pages/man2/sched_getscheduler.2)
  * gets the scheduling policy for the given thread.
  *
  * Returns a non-negative thread policy on success and returns -1 and sets
diff --git a/libc/include/signal.h b/libc/include/signal.h
index cf83db8..9d47bcc 100644
--- a/libc/include/signal.h
+++ b/libc/include/signal.h
@@ -86,17 +86,17 @@
 int sigwait64(const sigset64_t* _Nonnull __set, int* _Nonnull __signal) __INTRODUCED_IN(28);
 
 int sighold(int __signal)
-  __attribute__((deprecated("use sigprocmask() or pthread_sigmask() instead")))
+  __attribute__((__deprecated__("use sigprocmask() or pthread_sigmask() instead")))
   __INTRODUCED_IN(26);
 int sigignore(int __signal)
-  __attribute__((deprecated("use sigaction() instead"))) __INTRODUCED_IN(26);
+  __attribute__((__deprecated__("use sigaction() instead"))) __INTRODUCED_IN(26);
 int sigpause(int __signal)
-  __attribute__((deprecated("use sigsuspend() instead"))) __INTRODUCED_IN(26);
+  __attribute__((__deprecated__("use sigsuspend() instead"))) __INTRODUCED_IN(26);
 int sigrelse(int __signal)
-  __attribute__((deprecated("use sigprocmask() or pthread_sigmask() instead")))
+  __attribute__((__deprecated__("use sigprocmask() or pthread_sigmask() instead")))
   __INTRODUCED_IN(26);
 sighandler_t _Nonnull sigset(int __signal, sighandler_t _Nullable __handler)
-  __attribute__((deprecated("use sigaction() instead"))) __INTRODUCED_IN(26);
+  __attribute__((__deprecated__("use sigaction() instead"))) __INTRODUCED_IN(26);
 
 int raise(int __signal);
 int kill(pid_t __pid, int __signal);
diff --git a/libc/include/spawn.h b/libc/include/spawn.h
index 6c34b98..3ce402f 100644
--- a/libc/include/spawn.h
+++ b/libc/include/spawn.h
@@ -55,7 +55,7 @@
 int posix_spawn(pid_t* _Nullable __pid, const char* _Nonnull __path, const posix_spawn_file_actions_t _Nullable * _Nullable __actions, const posix_spawnattr_t _Nullable * _Nullable __attr, char* const _Nonnull __argv[_Nonnull], char* const _Nullable __env[_Nullable]) __INTRODUCED_IN(28);
 int posix_spawnp(pid_t* _Nullable __pid, const char* _Nonnull __file, const posix_spawn_file_actions_t _Nullable * _Nullable __actions, const posix_spawnattr_t _Nullable * _Nullable __attr, char* const _Nonnull __argv[_Nonnull], char* const _Nullable __env[_Nullable]) __INTRODUCED_IN(28);
 
-int posix_spawnattr_init(posix_spawnattr_t _Nonnull * _Nonnull __attr) __INTRODUCED_IN(28);
+int posix_spawnattr_init(posix_spawnattr_t _Nullable * _Nonnull __attr) __INTRODUCED_IN(28);
 int posix_spawnattr_destroy(posix_spawnattr_t _Nonnull * _Nonnull __attr) __INTRODUCED_IN(28);
 
 int posix_spawnattr_setflags(posix_spawnattr_t _Nonnull * _Nonnull __attr, short __flags) __INTRODUCED_IN(28);
diff --git a/libc/include/stdio.h b/libc/include/stdio.h
index 312b356..279c658 100644
--- a/libc/include/stdio.h
+++ b/libc/include/stdio.h
@@ -69,7 +69,7 @@
 #define stderr stderr
 #else
 /* Before M the actual symbols for stdin and friends had different names. */
-extern FILE __sF[] __REMOVED_IN(23);
+extern FILE __sF[] __REMOVED_IN(23, "Use stdin/stdout/stderr");
 
 #define stdin (&__sF[0])
 #define stdout (&__sF[1])
@@ -105,10 +105,10 @@
 
 void clearerr(FILE* _Nonnull __fp);
 int fclose(FILE* _Nonnull __fp);
-int feof(FILE* _Nonnull __fp);
-int ferror(FILE* _Nonnull __fp);
+__wur int feof(FILE* _Nonnull __fp);
+__wur int ferror(FILE* _Nonnull __fp);
 int fflush(FILE* _Nullable __fp);
-int fgetc(FILE* _Nonnull __fp);
+__wur int fgetc(FILE* _Nonnull __fp);
 char* _Nullable fgets(char* _Nonnull __buf, int __size, FILE* _Nonnull __fp);
 int fprintf(FILE* _Nonnull __fp , const char* _Nonnull __fmt, ...) __printflike(2, 3);
 int fputc(int __ch, FILE* _Nonnull __fp);
@@ -116,8 +116,8 @@
 size_t fread(void* _Nonnull __buf, size_t __size, size_t __count, FILE* _Nonnull __fp);
 int fscanf(FILE* _Nonnull __fp, const char* _Nonnull __fmt, ...) __scanflike(2, 3);
 size_t fwrite(const void* _Nonnull __buf, size_t __size, size_t __count, FILE* _Nonnull __fp);
-int getc(FILE* _Nonnull __fp);
-int getchar(void);
+__wur int getc(FILE* _Nonnull __fp);
+__wur int getchar(void);
 ssize_t getdelim(char* _Nullable * _Nonnull __line_ptr, size_t* _Nonnull __line_length_ptr, int __delimiter, FILE* _Nonnull __fp);
 ssize_t getline(char* _Nullable * _Nonnull __line_ptr, size_t* _Nonnull __line_length_ptr, FILE* _Nonnull __fp);
 
@@ -141,7 +141,7 @@
 
 #if (defined(__STDC_VERSION__) && __STDC_VERSION__ < 201112L) || \
     (defined(__cplusplus) && __cplusplus <= 201103L)
-char* _Nullable gets(char* _Nonnull __buf) __attribute__((deprecated("gets is unsafe, use fgets instead")));
+char* _Nullable gets(char* _Nonnull __buf) __attribute__((__deprecated__("gets is unsafe, use fgets instead")));
 #endif
 int sprintf(char* __BIONIC_COMPLICATED_NULLNESS __s, const char* _Nonnull __fmt, ...)
     __printflike(2, 3) __warnattr_strict("sprintf is often misused; please use snprintf");
@@ -201,17 +201,17 @@
 #endif
 
 int fseek(FILE* _Nonnull __fp, long __offset, int __whence);
-long ftell(FILE* _Nonnull __fp);
+__wur long ftell(FILE* _Nonnull __fp);
 
 /* See https://android.googlesource.com/platform/bionic/+/main/docs/32-bit-abi.md */
 #if defined(__USE_FILE_OFFSET64)
 int fgetpos(FILE* _Nonnull __fp, fpos_t* _Nonnull __pos) __RENAME(fgetpos64) __INTRODUCED_IN(24);
 int fsetpos(FILE* _Nonnull __fp, const fpos_t* _Nonnull __pos) __RENAME(fsetpos64) __INTRODUCED_IN(24);
 int fseeko(FILE* _Nonnull __fp, off_t __offset, int __whence) __RENAME(fseeko64) __INTRODUCED_IN(24);
-off_t ftello(FILE* _Nonnull __fp) __RENAME(ftello64) __INTRODUCED_IN(24);
+__wur off_t ftello(FILE* _Nonnull __fp) __RENAME(ftello64) __INTRODUCED_IN(24);
 #  if defined(__USE_BSD)
 /* If __read_fn and __write_fn are both nullptr, it will cause EINVAL */
-FILE* _Nullable funopen(const void* _Nullable __cookie,
+__wur FILE* _Nullable funopen(const void* _Nullable __cookie,
               int (* __BIONIC_COMPLICATED_NULLNESS __read_fn)(void* _Nonnull, char* _Nonnull, int),
               int (* __BIONIC_COMPLICATED_NULLNESS __write_fn)(void* _Nonnull, const char* _Nonnull, int),
               fpos_t (* _Nullable __seek_fn)(void* _Nonnull, fpos_t, int),
@@ -221,10 +221,10 @@
 int fgetpos(FILE* _Nonnull __fp, fpos_t* _Nonnull __pos);
 int fsetpos(FILE* _Nonnull __fp, const fpos_t* _Nonnull __pos);
 int fseeko(FILE* _Nonnull __fp, off_t __offset, int __whence);
-off_t ftello(FILE* _Nonnull __fp);
+__wur off_t ftello(FILE* _Nonnull __fp);
 #  if defined(__USE_BSD)
 /* If __read_fn and __write_fn are both nullptr, it will cause EINVAL */
-FILE* _Nullable funopen(const void* _Nullable __cookie,
+__wur FILE* _Nullable funopen(const void* _Nullable __cookie,
               int (* __BIONIC_COMPLICATED_NULLNESS __read_fn)(void* _Nonnull, char* _Nonnull, int),
               int (* __BIONIC_COMPLICATED_NULLNESS __write_fn)(void* _Nonnull, const char* _Nonnull, int),
               fpos_t (* _Nullable __seek_fn)(void* _Nonnull, fpos_t, int),
@@ -234,22 +234,22 @@
 int fgetpos64(FILE* _Nonnull __fp, fpos64_t* _Nonnull __pos) __INTRODUCED_IN(24);
 int fsetpos64(FILE* _Nonnull __fp, const fpos64_t* _Nonnull __pos) __INTRODUCED_IN(24);
 int fseeko64(FILE* _Nonnull __fp, off64_t __offset, int __whence) __INTRODUCED_IN(24);
-off64_t ftello64(FILE* _Nonnull __fp) __INTRODUCED_IN(24);
+__wur off64_t ftello64(FILE* _Nonnull __fp) __INTRODUCED_IN(24);
 #if defined(__USE_BSD)
 /* If __read_fn and __write_fn are both nullptr, it will cause EINVAL */
-FILE* _Nullable funopen64(const void* _Nullable __cookie,
+__wur FILE* _Nullable funopen64(const void* _Nullable __cookie,
                 int (* __BIONIC_COMPLICATED_NULLNESS __read_fn)(void* _Nonnull, char* _Nonnull, int),
                 int (* __BIONIC_COMPLICATED_NULLNESS __write_fn)(void* _Nonnull, const char* _Nonnull, int),
                 fpos64_t (* _Nullable __seek_fn)(void* _Nonnull, fpos64_t, int),
                 int (* _Nullable __close_fn)(void* _Nonnull)) __INTRODUCED_IN(24);
 #endif
 
-FILE* _Nullable fopen(const char* _Nonnull __path, const char* _Nonnull __mode);
-FILE* _Nullable fopen64(const char* _Nonnull __path, const char* _Nonnull __mode) __INTRODUCED_IN(24);
+__wur FILE* _Nullable fopen(const char* _Nonnull __path, const char* _Nonnull __mode);
+__wur FILE* _Nullable fopen64(const char* _Nonnull __path, const char* _Nonnull __mode) __INTRODUCED_IN(24);
 FILE* _Nullable freopen(const char* _Nullable __path, const char* _Nonnull __mode, FILE* _Nonnull __fp);
 FILE* _Nullable freopen64(const char* _Nullable __path, const char* _Nonnull __mode, FILE* _Nonnull __fp) __INTRODUCED_IN(24);
-FILE* _Nullable tmpfile(void);
-FILE* _Nullable tmpfile64(void) __INTRODUCED_IN(24);
+__wur FILE* _Nullable tmpfile(void);
+__wur FILE* _Nullable tmpfile64(void) __INTRODUCED_IN(24);
 
 int snprintf(char* __BIONIC_COMPLICATED_NULLNESS __buf, size_t __size, const char* _Nonnull __fmt, ...) __printflike(3, 4);
 int vfscanf(FILE* _Nonnull __fp, const char* _Nonnull __fmt, va_list __args) __scanflike(2, 0);
@@ -260,20 +260,20 @@
 #define L_ctermid 1024 /* size for ctermid() */
 char* _Nonnull ctermid(char* _Nullable __buf) __INTRODUCED_IN(26);
 
-FILE* _Nullable fdopen(int __fd, const char* _Nonnull __mode);
-int fileno(FILE* _Nonnull __fp);
+__wur FILE* _Nullable fdopen(int __fd, const char* _Nonnull __mode);
+__wur int fileno(FILE* _Nonnull __fp);
 int pclose(FILE* _Nonnull __fp);
-FILE* _Nullable popen(const char* _Nonnull __command, const char* _Nonnull __mode);
+__wur FILE* _Nullable popen(const char* _Nonnull __command, const char* _Nonnull __mode);
 void flockfile(FILE* _Nonnull  __fp);
 int ftrylockfile(FILE* _Nonnull __fp);
 void funlockfile(FILE* _Nonnull __fp);
-int getc_unlocked(FILE* _Nonnull __fp);
-int getchar_unlocked(void);
+__wur int getc_unlocked(FILE* _Nonnull __fp);
+__wur int getchar_unlocked(void);
 int putc_unlocked(int __ch, FILE* _Nonnull __fp);
 int putchar_unlocked(int __ch);
 
-FILE* _Nullable fmemopen(void* _Nullable __buf, size_t __size, const char* _Nonnull __mode) __INTRODUCED_IN(23);
-FILE* _Nullable open_memstream(char* _Nonnull * _Nonnull __ptr, size_t* _Nonnull __size_ptr) __INTRODUCED_IN(23);
+__wur FILE* _Nullable fmemopen(void* _Nullable __buf, size_t __size, const char* _Nonnull __mode) __INTRODUCED_IN(23);
+__wur FILE* _Nullable open_memstream(char* _Nonnull * _Nonnull __ptr, size_t* _Nonnull __size_ptr) __INTRODUCED_IN(23);
 
 #if defined(__USE_BSD) || defined(__BIONIC__) /* Historically bionic exposed these. */
 int  asprintf(char* _Nullable * _Nonnull __s_ptr, const char* _Nonnull __fmt, ...) __printflike(2, 3);
@@ -283,16 +283,16 @@
 int setlinebuf(FILE* _Nonnull __fp);
 int vasprintf(char* _Nullable * _Nonnull __s_ptr, const char* _Nonnull __fmt, va_list __args) __printflike(2, 0);
 void clearerr_unlocked(FILE* _Nonnull __fp) __INTRODUCED_IN(23);
-int feof_unlocked(FILE* _Nonnull __fp) __INTRODUCED_IN(23);
-int ferror_unlocked(FILE* _Nonnull __fp) __INTRODUCED_IN(23);
-int fileno_unlocked(FILE* _Nonnull __fp) __INTRODUCED_IN(24);
+__wur int feof_unlocked(FILE* _Nonnull __fp) __INTRODUCED_IN(23);
+__wur int ferror_unlocked(FILE* _Nonnull __fp) __INTRODUCED_IN(23);
+__wur int fileno_unlocked(FILE* _Nonnull __fp) __INTRODUCED_IN(24);
 #define fropen(cookie, fn) funopen(cookie, fn, 0, 0, 0)
 #define fwopen(cookie, fn) funopen(cookie, 0, fn, 0, 0)
 #endif
 
 #if defined(__USE_BSD)
 int fflush_unlocked(FILE* _Nullable __fp) __INTRODUCED_IN(28);
-int fgetc_unlocked(FILE* _Nonnull __fp) __INTRODUCED_IN(28);
+__wur int fgetc_unlocked(FILE* _Nonnull __fp) __INTRODUCED_IN(28);
 int fputc_unlocked(int __ch, FILE* _Nonnull __fp) __INTRODUCED_IN(28);
 size_t fread_unlocked(void* _Nonnull __buf, size_t __size, size_t __count, FILE* _Nonnull __fp) __INTRODUCED_IN(28);
 size_t fwrite_unlocked(const void* _Nonnull __buf, size_t __size, size_t __count, FILE* _Nonnull __fp) __INTRODUCED_IN(28);
diff --git a/libc/include/stdlib.h b/libc/include/stdlib.h
index 2830a49..d0efc4c 100644
--- a/libc/include/stdlib.h
+++ b/libc/include/stdlib.h
@@ -57,7 +57,7 @@
 int clearenv(void);
 
 char* _Nullable mkdtemp(char* _Nonnull __template);
-char* _Nullable mktemp(char* _Nonnull __template) __attribute__((deprecated("mktemp is unsafe, use mkstemp or tmpfile instead")));
+char* _Nullable mktemp(char* _Nonnull __template) __attribute__((__deprecated__("mktemp is unsafe, use mkstemp or tmpfile instead")));
 
 int mkostemp64(char* _Nonnull __template, int __flags) __INTRODUCED_IN(23);
 int mkostemp(char* _Nonnull __template, int __flags) __INTRODUCED_IN(23);
@@ -105,7 +105,14 @@
  */
 int system(const char* _Nonnull __command);
 
-void* _Nullable bsearch(const void* _Nonnull __key, const void* _Nullable __base, size_t __nmemb, size_t __size, int (* _Nonnull __comparator)(const void* _Nonnull __lhs, const void* _Nonnull __rhs));
+/**
+ * [bsearch(3)](http://man7.org/linux/man-pages/man3/bsearch.3.html) searches
+ * a sorted array.
+ *
+ * Returns a pointer to a matching item on success,
+ * or NULL if no matching item is found.
+ */
+__wur void* _Nullable bsearch(const void* _Nonnull __key, const void* _Nullable __base, size_t __nmemb, size_t __size, int (* _Nonnull __comparator)(const void* _Nonnull __lhs, const void* _Nonnull __rhs));
 
 void qsort(void* _Nullable __base, size_t __nmemb, size_t __size, int (* _Nonnull __comparator)(const void* _Nullable __lhs, const void* _Nullable __rhs));
 
diff --git a/libc/include/strings.h b/libc/include/strings.h
index 2f4f764..4b8cc08 100644
--- a/libc/include/strings.h
+++ b/libc/include/strings.h
@@ -61,13 +61,13 @@
 
 /** Deprecated. Use memmove() instead. */
 #define bcopy(b1, b2, len) __bionic_bcopy((b1), (b2), (len))
-static __inline__ __always_inline void __bionic_bcopy(const void* _Nonnull b1, void* _Nonnull b2, size_t len) {
+static __inline __always_inline void __bionic_bcopy(const void* _Nonnull b1, void* _Nonnull b2, size_t len) {
   __builtin_memmove(b2, b1, len);
 }
 
 /** Deprecated. Use memset() instead. */
 #define bzero(b, len) __bionic_bzero((b), (len))
-static __inline__ __always_inline void __bionic_bzero(void* _Nonnull b, size_t len) {
+static __inline __always_inline void __bionic_bzero(void* _Nonnull b, size_t len) {
   __builtin_memset(b, 0, len);
 }
 
diff --git a/libc/include/sys/_system_properties.h b/libc/include/sys/_system_properties.h
index 079c825..078e857 100644
--- a/libc/include/sys/_system_properties.h
+++ b/libc/include/sys/_system_properties.h
@@ -41,6 +41,7 @@
 __BEGIN_DECLS
 
 #define PROP_SERVICE_NAME "property_service"
+#define PROP_SERVICE_FOR_SYSTEM_NAME "property_service_for_system"
 #define PROP_DIRNAME "/dev/__properties__"
 
 #define PROP_MSG_SETPROP 1
diff --git a/libc/include/sys/cdefs.h b/libc/include/sys/cdefs.h
index a8fb624..5d1718e 100644
--- a/libc/include/sys/cdefs.h
+++ b/libc/include/sys/cdefs.h
@@ -87,9 +87,12 @@
 #define	__STRING(x)	#x
 #define	___STRING(x)	__STRING(x)
 
-#if defined(__cplusplus)
-#define	__inline	inline		/* convert to C++ keyword */
-#endif /* !__cplusplus */
+// C++ has `inline` as a keyword, as does C99, but ANSI C (aka C89 aka C90)
+// does not. Everything accepts the `__inline__` extension though. We could
+// just use that directly in our own code, but there's historical precedent
+// for `__inline` meaning it's still used in upstream BSD code (and potentially
+// downstream in vendor or app code).
+#define	__inline __inline__
 
 #define __always_inline __attribute__((__always_inline__))
 #define __attribute_const__ __attribute__((__const__))
@@ -139,12 +142,12 @@
 
 #define __wur __attribute__((__warn_unused_result__))
 
-#define __errorattr(msg) __attribute__((unavailable(msg)))
-#define __warnattr(msg) __attribute__((deprecated(msg)))
-#define __warnattr_real(msg) __attribute__((deprecated(msg)))
-#define __enable_if(cond, msg) __attribute__((enable_if(cond, msg)))
-#define __clang_error_if(cond, msg) __attribute__((diagnose_if(cond, msg, "error")))
-#define __clang_warning_if(cond, msg) __attribute__((diagnose_if(cond, msg, "warning")))
+#define __errorattr(msg) __attribute__((__unavailable__(msg)))
+#define __warnattr(msg) __attribute__((__deprecated__(msg)))
+#define __warnattr_real(msg) __attribute__((__deprecated__(msg)))
+#define __enable_if(cond, msg) __attribute__((__enable_if__(cond, msg)))
+#define __clang_error_if(cond, msg) __attribute__((__diagnose_if__(cond, msg, "error")))
+#define __clang_warning_if(cond, msg) __attribute__((__diagnose_if__(cond, msg, "warning")))
 
 #if defined(ANDROID_STRICT)
 /*
@@ -248,7 +251,7 @@
 
 #if defined(__BIONIC_FORTIFY)
 #  define __bos0(s) __bosn((s), 0)
-#  define __pass_object_size_n(n) __attribute__((pass_object_size(n)))
+#  define __pass_object_size_n(n) __attribute__((__pass_object_size__(n)))
 /*
  * FORTIFY'ed functions all have either enable_if or pass_object_size, which
  * makes taking their address impossible. Saying (&read)(foo, bar, baz); will
@@ -260,7 +263,7 @@
  * them available externally. FORTIFY'ed functions try to be as close to possible as 'invisible';
  * having stack protectors detracts from that (b/182948263).
  */
-#  define __BIONIC_FORTIFY_INLINE static __inline__ __attribute__((no_stack_protector)) \
+#  define __BIONIC_FORTIFY_INLINE static __inline __attribute__((__no_stack_protector__)) \
       __always_inline __VERSIONER_FORTIFY_INLINE
 /*
  * We should use __BIONIC_FORTIFY_VARIADIC instead of __BIONIC_FORTIFY_INLINE
@@ -268,9 +271,9 @@
  * The __always_inline attribute is useless, misleading, and could trigger
  * clang compiler bug to incorrectly inline variadic functions.
  */
-#  define __BIONIC_FORTIFY_VARIADIC static __inline__
+#  define __BIONIC_FORTIFY_VARIADIC static __inline
 /* Error functions don't have bodies, so they can just be static. */
-#  define __BIONIC_ERROR_FUNCTION_VISIBILITY static __attribute__((unused))
+#  define __BIONIC_ERROR_FUNCTION_VISIBILITY static __unused
 #else
 /* Further increase sharing for some inline functions */
 #  define __pass_object_size_n(n)
@@ -300,47 +303,32 @@
 #  define __BIONIC_INCLUDE_FORTIFY_HEADERS 1
 #endif
 
-#define __overloadable __attribute__((overloadable))
+#define __overloadable __attribute__((__overloadable__))
 
-#define __diagnose_as_builtin(...) __attribute__((diagnose_as_builtin(__VA_ARGS__)))
+#define __diagnose_as_builtin(...) __attribute__((__diagnose_as_builtin__(__VA_ARGS__)))
 
 /* Used to tag non-static symbols that are private and never exposed by the shared library. */
-#define __LIBC_HIDDEN__ __attribute__((visibility("hidden")))
+#define __LIBC_HIDDEN__ __attribute__((__visibility__("hidden")))
 
 /*
  * Used to tag symbols that should be hidden for 64-bit,
  * but visible to preserve binary compatibility for LP32.
  */
 #ifdef __LP64__
-#define __LIBC32_LEGACY_PUBLIC__ __attribute__((visibility("hidden")))
+#define __LIBC32_LEGACY_PUBLIC__ __attribute__((__visibility__("hidden")))
 #else
-#define __LIBC32_LEGACY_PUBLIC__ __attribute__((visibility("default")))
+#define __LIBC32_LEGACY_PUBLIC__ __attribute__((__visibility__("default")))
 #endif
 
 /* Used to rename functions so that the compiler emits a call to 'x' rather than the function this was applied to. */
 #define __RENAME(x) __asm__(#x)
 
-#if __has_builtin(__builtin_umul_overflow) || __GNUC__ >= 5
-#if defined(__LP64__)
-#define __size_mul_overflow(a, b, result) __builtin_umull_overflow(a, b, result)
-#else
-#define __size_mul_overflow(a, b, result) __builtin_umul_overflow(a, b, result)
-#endif
-#else
-extern __inline__ __always_inline __attribute__((gnu_inline))
-int __size_mul_overflow(__SIZE_TYPE__ a, __SIZE_TYPE__ b, __SIZE_TYPE__ *result) {
-    *result = a * b;
-    static const __SIZE_TYPE__ mul_no_overflow = 1UL << (sizeof(__SIZE_TYPE__) * 4);
-    return (a >= mul_no_overflow || b >= mul_no_overflow) && a > 0 && (__SIZE_TYPE__)-1 / a < b;
-}
-#endif
-
 /*
  * Used when we need to check for overflow when multiplying x and y. This
- * should only be used where __size_mul_overflow can not work, because it makes
- * assumptions that __size_mul_overflow doesn't (x and y are positive, ...),
+ * should only be used where __builtin_umull_overflow can not work, because it makes
+ * assumptions that __builtin_umull_overflow doesn't (x and y are positive, ...),
  * *and* doesn't make use of compiler intrinsics, so it's probably slower than
- * __size_mul_overflow.
+ * __builtin_umull_overflow.
  */
 #define __unsafe_check_mul_overflow(x, y) ((__SIZE_TYPE__)-1 / (x) < (y))
 
diff --git a/libc/include/sys/io.h b/libc/include/sys/io.h
new file mode 100644
index 0000000..d187b78
--- /dev/null
+++ b/libc/include/sys/io.h
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#pragma once
+
+/**
+ * @file sys/io.h
+ * @brief The x86/x86-64 I/O port functions iopl() and ioperm().
+ */
+
+#include <sys/cdefs.h>
+
+#include <errno.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+
+__BEGIN_DECLS
+
+/**
+ * [iopl(2)](http://man7.org/linux/man-pages/man2/iopl.2.html) changes the I/O
+ * privilege level for all x86/x8-64 I/O ports, for the calling thread.
+ *
+ * New callers should use ioperm() instead.
+ *
+ * Returns 0 on success, and returns -1 and sets `errno` on failure.
+ *
+ * Only available for x86/x86-64.
+ */
+#if defined(__NR_iopl)
+__attribute__((__deprecated__("use ioperm() instead"))) static __inline int iopl(int __level) {
+  return syscall(__NR_iopl, __level);
+}
+#endif
+
+/**
+ * [ioperm(2)](http://man7.org/linux/man-pages/man2/ioperm.2.html) sets the I/O
+ * permissions for the given number of x86/x86-64 I/O ports, starting at the
+ * given port.
+ *
+ * Returns 0 on success, and returns -1 and sets `errno` on failure.
+ *
+ * Only available for x86/x86-64.
+ */
+#if defined(__NR_iopl)
+static __inline int ioperm(unsigned long __from, unsigned long __n, int __enabled) {
+  return syscall(__NR_ioperm, __from, __n, __enabled);
+}
+#endif
+
+__END_DECLS
diff --git a/libc/include/sys/msg.h b/libc/include/sys/msg.h
index ad481a0..26071b1 100644
--- a/libc/include/sys/msg.h
+++ b/libc/include/sys/msg.h
@@ -46,7 +46,7 @@
 typedef __kernel_ulong_t msglen_t;
 
 /** Not useful on Android; disallowed by SELinux. */
-int msgctl(int __msg_id, int __cmd, struct msqid_ds* _Nullable __buf) __INTRODUCED_IN(26);
+int msgctl(int __msg_id, int __op, struct msqid_ds* _Nullable __buf) __INTRODUCED_IN(26);
 /** Not useful on Android; disallowed by SELinux. */
 int msgget(key_t __key, int __flags) __INTRODUCED_IN(26);
 /** Not useful on Android; disallowed by SELinux. */
diff --git a/libc/include/sys/param.h b/libc/include/sys/param.h
index 79ae067..1c991ae 100644
--- a/libc/include/sys/param.h
+++ b/libc/include/sys/param.h
@@ -41,8 +41,11 @@
 /** The unit of `st_blocks` in `struct stat`. */
 #define DEV_BSIZE 512
 
-/** A historical name for PATH_MAX. */
-#define MAXPATHLEN  PATH_MAX
+/** A historical name for PATH_MAX. Use PATH_MAX in new code. */
+#define MAXPATHLEN PATH_MAX
+
+/** A historical name for NGROUPS_MAX. Use NGROUPS_MAX in new code. */
+#define NGROUPS NGROUPS_MAX
 
 #define MAXSYMLINKS 8
 
diff --git a/libc/include/sys/prctl.h b/libc/include/sys/prctl.h
index ff03c33..1c80415 100644
--- a/libc/include/sys/prctl.h
+++ b/libc/include/sys/prctl.h
@@ -45,6 +45,6 @@
  *
  * Returns -1 and sets `errno` on failure; success values vary by option.
  */
-int prctl(int __option, ...);
+int prctl(int __op, ...);
 
 __END_DECLS
diff --git a/libc/include/sys/ptrace.h b/libc/include/sys/ptrace.h
index 022fc3a..66b30a1 100644
--- a/libc/include/sys/ptrace.h
+++ b/libc/include/sys/ptrace.h
@@ -59,7 +59,7 @@
 #define PT_GETSIGINFO PTRACE_GETSIGINFO
 #define PT_SETSIGINFO PTRACE_SETSIGINFO
 
-long ptrace(int __request, ...);
+long ptrace(int __op, ...);
 
 __END_DECLS
 
diff --git a/libc/include/sys/quota.h b/libc/include/sys/quota.h
index 79c653d..37f8925 100644
--- a/libc/include/sys/quota.h
+++ b/libc/include/sys/quota.h
@@ -51,6 +51,6 @@
  *
  * Available since API level 26.
  */
-int quotactl(int __cmd, const char* _Nullable __special, int __id, char* __BIONIC_COMPLICATED_NULLNESS __addr) __INTRODUCED_IN(26);
+int quotactl(int __op, const char* _Nullable __special, int __id, char* __BIONIC_COMPLICATED_NULLNESS __addr) __INTRODUCED_IN(26);
 
 __END_DECLS
diff --git a/libc/include/sys/reboot.h b/libc/include/sys/reboot.h
index 156d947..5d9e1a7 100644
--- a/libc/include/sys/reboot.h
+++ b/libc/include/sys/reboot.h
@@ -55,6 +55,6 @@
  * Does not return on successful reboot, returns 0 if CAD was successfully enabled/disabled,
  * and returns -1 and sets `errno` on failure.
  */
-int reboot(int __cmd);
+int reboot(int __op);
 
 __END_DECLS
diff --git a/libc/include/sys/sem.h b/libc/include/sys/sem.h
index f4256e2..5682282 100644
--- a/libc/include/sys/sem.h
+++ b/libc/include/sys/sem.h
@@ -51,7 +51,7 @@
   void* _Nullable __pad;
 };
 
-int semctl(int __sem_id, int __sem_num, int __cmd, ...) __INTRODUCED_IN(26);
+int semctl(int __sem_id, int __sem_num, int __op, ...) __INTRODUCED_IN(26);
 int semget(key_t __key, int __sem_count, int __flags) __INTRODUCED_IN(26);
 int semop(int __sem_id, struct sembuf* _Nonnull __ops, size_t __op_count) __INTRODUCED_IN(26);
 
diff --git a/libc/include/sys/shm.h b/libc/include/sys/shm.h
index 9d58046..8ab3d9a 100644
--- a/libc/include/sys/shm.h
+++ b/libc/include/sys/shm.h
@@ -36,11 +36,12 @@
 #include <sys/cdefs.h>
 #include <sys/ipc.h>
 #include <sys/types.h>
+#include <unistd.h>
 
 #include <linux/shm.h>
 
 #define shmid_ds shmid64_ds
-#define SHMLBA 4096
+#define SHMLBA getpagesize()
 
 __BEGIN_DECLS
 
@@ -49,7 +50,7 @@
 /** Not useful on Android; disallowed by SELinux. */
 void* _Nonnull shmat(int __shm_id, const void* _Nullable __addr, int __flags) __INTRODUCED_IN(26);
 /** Not useful on Android; disallowed by SELinux. */
-int shmctl(int __shm_id, int __cmd, struct shmid_ds* _Nullable __buf) __INTRODUCED_IN(26);
+int shmctl(int __shm_id, int __op, struct shmid_ds* _Nullable __buf) __INTRODUCED_IN(26);
 /** Not useful on Android; disallowed by SELinux. */
 int shmdt(const void* _Nonnull __addr) __INTRODUCED_IN(26);
 /** Not useful on Android; disallowed by SELinux. */
diff --git a/libc/include/sys/socket.h b/libc/include/sys/socket.h
index 9402e70..47ddce0 100644
--- a/libc/include/sys/socket.h
+++ b/libc/include/sys/socket.h
@@ -277,41 +277,33 @@
 
 #define IPX_TYPE 1
 
-#ifdef __i386__
-# define __socketcall extern __attribute__((__cdecl__))
-#else
-# define __socketcall extern
-#endif
-
-__socketcall int accept(int __fd, struct sockaddr* _Nullable __addr, socklen_t* _Nullable __addr_length);
-__socketcall int accept4(int __fd, struct sockaddr* _Nullable __addr, socklen_t* _Nullable __addr_length, int __flags);
-__socketcall int bind(int __fd, const struct sockaddr* _Nonnull __addr, socklen_t __addr_length);
-__socketcall int connect(int __fd, const struct sockaddr* _Nonnull __addr, socklen_t __addr_length);
-__socketcall int getpeername(int __fd, struct sockaddr* _Nonnull __addr, socklen_t* _Nonnull __addr_length);
-__socketcall int getsockname(int __fd, struct sockaddr* _Nonnull __addr, socklen_t* _Nonnull __addr_length);
-__socketcall int getsockopt(int __fd, int __level, int __option, void* _Nullable __value, socklen_t* _Nonnull __value_length);
-__socketcall int listen(int __fd, int __backlog);
-__socketcall int recvmmsg(int __fd, struct mmsghdr* _Nonnull __msgs, unsigned int __msg_count, int __flags, const struct timespec* _Nullable __timeout);
-__socketcall ssize_t recvmsg(int __fd, struct msghdr* _Nonnull __msg, int __flags);
-__socketcall int sendmmsg(int __fd, const struct mmsghdr* _Nonnull __msgs, unsigned int __msg_count, int __flags);
-__socketcall ssize_t sendmsg(int __fd, const struct msghdr* _Nonnull __msg, int __flags);
-__socketcall int setsockopt(int __fd, int __level, int __option, const void* _Nullable __value, socklen_t __value_length);
-__socketcall int shutdown(int __fd, int __how);
-__socketcall int socket(int __af, int __type, int __protocol);
-__socketcall int socketpair(int __af, int __type, int __protocol, int __fds[_Nonnull 2]);
+int accept(int __fd, struct sockaddr* _Nullable __addr, socklen_t* _Nullable __addr_length);
+int accept4(int __fd, struct sockaddr* _Nullable __addr, socklen_t* _Nullable __addr_length, int __flags);
+int bind(int __fd, const struct sockaddr* _Nonnull __addr, socklen_t __addr_length);
+int connect(int __fd, const struct sockaddr* _Nonnull __addr, socklen_t __addr_length);
+int getpeername(int __fd, struct sockaddr* _Nonnull __addr, socklen_t* _Nonnull __addr_length);
+int getsockname(int __fd, struct sockaddr* _Nonnull __addr, socklen_t* _Nonnull __addr_length);
+int getsockopt(int __fd, int __level, int __option, void* _Nullable __value, socklen_t* _Nonnull __value_length);
+int listen(int __fd, int __backlog);
+int recvmmsg(int __fd, struct mmsghdr* _Nonnull __msgs, unsigned int __msg_count, int __flags, const struct timespec* _Nullable __timeout);
+ssize_t recvmsg(int __fd, struct msghdr* _Nonnull __msg, int __flags);
+int sendmmsg(int __fd, const struct mmsghdr* _Nonnull __msgs, unsigned int __msg_count, int __flags);
+ssize_t sendmsg(int __fd, const struct msghdr* _Nonnull __msg, int __flags);
+int setsockopt(int __fd, int __level, int __option, const void* _Nullable __value, socklen_t __value_length);
+int shutdown(int __fd, int __how);
+int socket(int __af, int __type, int __protocol);
+int socketpair(int __af, int __type, int __protocol, int __fds[_Nonnull 2]);
 
 ssize_t recv(int __fd, void* _Nullable __buf, size_t __n, int __flags);
 ssize_t send(int __fd, const void* _Nonnull __buf, size_t __n, int __flags);
 
-__socketcall ssize_t sendto(int __fd, const void* _Nonnull __buf, size_t __n, int __flags, const struct sockaddr* _Nullable __dst_addr, socklen_t __dst_addr_length);
-__socketcall ssize_t recvfrom(int __fd, void* _Nullable __buf, size_t __n, int __flags, struct sockaddr* _Nullable __src_addr, socklen_t* _Nullable __src_addr_length);
+ssize_t sendto(int __fd, const void* _Nonnull __buf, size_t __n, int __flags, const struct sockaddr* _Nullable __dst_addr, socklen_t __dst_addr_length);
+ssize_t recvfrom(int __fd, void* _Nullable __buf, size_t __n, int __flags, struct sockaddr* _Nullable __src_addr, socklen_t* _Nullable __src_addr_length);
 
 #if defined(__BIONIC_INCLUDE_FORTIFY_HEADERS)
 #include <bits/fortify/socket.h>
 #endif
 
-#undef __socketcall
-
 __END_DECLS
 
 #endif
diff --git a/libc/include/sys/system_properties.h b/libc/include/sys/system_properties.h
index dc869da..ae94db5 100644
--- a/libc/include/sys/system_properties.h
+++ b/libc/include/sys/system_properties.h
@@ -26,8 +26,12 @@
  * SUCH DAMAGE.
  */
 
-#ifndef _INCLUDE_SYS_SYSTEM_PROPERTIES_H
-#define _INCLUDE_SYS_SYSTEM_PROPERTIES_H
+#pragma once
+
+/**
+ * @file system_properties.h
+ * @brief System properties.
+ */
 
 #include <sys/cdefs.h>
 #include <stdbool.h>
@@ -36,39 +40,53 @@
 
 __BEGIN_DECLS
 
+/** An opaque structure representing a system property. */
 typedef struct prop_info prop_info;
 
+/**
+ * The limit on the length of a property value.
+ * (See PROP_NAME_MAX for property names.)
+ */
 #define PROP_VALUE_MAX  92
 
-/*
+/**
  * Sets system property `name` to `value`, creating the system property if it doesn't already exist.
+ *
+ * Returns 0 on success, or -1 on failure.
  */
 int __system_property_set(const char* _Nonnull __name, const char* _Nonnull __value);
 
-/*
+/**
  * Returns a `prop_info` corresponding system property `name`, or nullptr if it doesn't exist.
- * Use __system_property_read_callback to query the current value.
+ * Use __system_property_read_callback() to query the current value.
  *
- * Property lookup is expensive, so it can be useful to cache the result of this function.
+ * Property lookup is expensive, so it can be useful to cache the result of this
+ * function rather than using __system_property_get().
  */
 const prop_info* _Nullable __system_property_find(const char* _Nonnull __name);
 
-/*
- * Calls `callback` with a consistent trio of name, value, and serial number for property `pi`.
+/**
+ * Calls `callback` with a consistent trio of name, value, and serial number
+ * for property `pi`.
+ *
+ * Available since API level 26.
  */
 void __system_property_read_callback(const prop_info* _Nonnull __pi,
     void (* _Nonnull __callback)(void* _Nullable __cookie, const char* _Nonnull __name, const char* _Nonnull __value, uint32_t __serial),
     void* _Nullable __cookie) __INTRODUCED_IN(26);
 
-/*
+/**
  * Passes a `prop_info` for each system property to the provided
- * callback.  Use __system_property_read_callback() to read the value.
+ * callback. Use __system_property_read_callback() to read the value of
+ * any of the properties.
  *
  * This method is for inspecting and debugging the property system, and not generally useful.
+ *
+ * Returns 0 on success, or -1 on failure.
  */
 int __system_property_foreach(void (* _Nonnull __callback)(const prop_info* _Nonnull __pi, void* _Nullable __cookie), void* _Nullable __cookie);
 
-/*
+/**
  * Waits for the specific system property identified by `pi` to be updated
  * past `old_serial`. Waits no longer than `relative_timeout`, or forever
  * if `relative_timeout` is null.
@@ -79,20 +97,24 @@
  *
  * Returns true and updates `*new_serial_ptr` on success, or false if the call
  * timed out.
+ *
+ * Available since API level 26.
  */
 struct timespec;
 bool __system_property_wait(const prop_info* _Nullable __pi, uint32_t __old_serial, uint32_t* _Nonnull __new_serial_ptr, const struct timespec* _Nullable __relative_timeout)
     __INTRODUCED_IN(26);
 
-/* Deprecated. In Android O and above, there's no limit on property name length. */
+/**
+ * Deprecated: there's no limit on the length of a property name since
+ * API level 26, though the limit on property values (PROP_VALUE_MAX) remains.
+ */
 #define PROP_NAME_MAX   32
-/* Deprecated. Use __system_property_read_callback instead. */
+
+/** Deprecated. Use __system_property_read_callback() instead. */
 int __system_property_read(const prop_info* _Nonnull __pi, char* _Nullable __name, char* _Nonnull __value);
-/* Deprecated. Use __system_property_read_callback instead. */
+/** Deprecated. Use __system_property_read_callback() instead. */
 int __system_property_get(const char* _Nonnull __name, char* _Nonnull __value);
-/* Deprecated. Use __system_property_foreach instead. */
+/** Deprecated. Use __system_property_foreach() instead. */
 const prop_info* _Nullable __system_property_find_nth(unsigned __n);
 
 __END_DECLS
-
-#endif
diff --git a/libc/include/time.h b/libc/include/time.h
index 45c5c34..f448851 100644
--- a/libc/include/time.h
+++ b/libc/include/time.h
@@ -365,13 +365,14 @@
 
 /**
  * [clock_nanosleep(2)](http://man7.org/linux/man-pages/man2/clock_nanosleep.2.html)
- * sleeps for the given time as measured by the given clock.
+ * sleeps for the given time (or until the given time if the TIMER_ABSTIME flag
+ * is used), as measured by the given clock.
  *
  * Returns 0 on success, and returns -1 and returns an error number on failure.
  * If the sleep was interrupted by a signal, the return value will be `EINTR`
  * and `remainder` will be the amount of time remaining.
  */
-int clock_nanosleep(clockid_t __clock, int __flags, const struct timespec* _Nonnull __duration, struct timespec* _Nullable __remainder);
+int clock_nanosleep(clockid_t __clock, int __flags, const struct timespec* _Nonnull __time, struct timespec* _Nullable __remainder);
 
 /**
  * [clock_settime(2)](http://man7.org/linux/man-pages/man2/clock_settime.2.html)
diff --git a/libc/include/unistd.h b/libc/include/unistd.h
index c8cceb2..2552ca8 100644
--- a/libc/include/unistd.h
+++ b/libc/include/unistd.h
@@ -78,10 +78,57 @@
 
 __noreturn void _exit(int __status);
 
-pid_t  fork(void);
-pid_t  vfork(void) __returns_twice;
+/**
+ * [fork(2)](http://man7.org/linux/man-pages/man2/fork.2.html) creates a new
+ * process. fork() runs any handlers set by pthread_atfork().
+ *
+ * Returns 0 in the child, the pid of the child in the parent,
+ * and returns -1 and sets `errno` on failure.
+ */
+pid_t fork(void);
+
+/**
+ * _Fork() creates a new process. _Fork() differs from fork() in that it does
+ * not run any handlers set by pthread_atfork(). In addition to any user-defined
+ * ones, bionic uses pthread_atfork() handlers to ensure consistency of its own
+ * state, so the child should only call
+ * [POSIX async-safe](https://man7.org/linux/man-pages/man7/signal-safety.7.html)
+ * functions.
+ *
+ * Returns 0 in the child, the pid of the child in the parent,
+ * and returns -1 and sets `errno` on failure.
+ *
+ * Available since API level 35.
+ */
+pid_t _Fork(void) __INTRODUCED_IN(35);
+
+/**
+ * [vfork(2)](http://man7.org/linux/man-pages/man2/vfork.2.html) creates a new
+ * process. vfork() differs from fork() in that it does not run any handlers
+ * set by pthread_atfork(), and the parent is suspended until the child calls
+ * exec() or exits.
+ *
+ * Returns 0 in the child, the pid of the child in the parent,
+ * and returns -1 and sets `errno` on failure.
+ */
+pid_t vfork(void) __returns_twice;
+
+/**
+ * [getpid(2)](http://man7.org/linux/man-pages/man2/getpid.2.html) returns
+ * the caller's process ID.
+ *
+ * Returns the caller's process ID.
+ */
 pid_t  getpid(void);
-pid_t  gettid(void) __attribute_const__;
+
+/**
+ * [gettid(2)](http://man7.org/linux/man-pages/man2/gettid.2.html) returns
+ * the caller's thread ID.
+ *
+ * Returns the caller's thread ID.
+ */
+pid_t  gettid(void);
+
 pid_t  getpgid(pid_t __pid);
 int    setpgid(pid_t __pid, pid_t __pgid);
 pid_t  getppid(void);
@@ -303,6 +350,13 @@
 
 int acct(const char* _Nullable __path);
 
+/**
+ * [getpagesize(2)](https://man7.org/linux/man-pages/man2/getpagesize.2.html)
+ * returns the system's page size. This is slightly faster than going via
+ * sysconf(), and avoids the linear search in getauxval().
+ *
+ * Returns the system's page size in bytes.
+ */
 int getpagesize(void) __attribute_const__;
 
 long syscall(long __number, ...);
@@ -310,8 +364,11 @@
 int daemon(int __no_chdir, int __no_close);
 
 #if defined(__arm__)
+/**
+ * New code should use __builtin___clear_cache() instead, which works on
+ * all architectures.
+ */
 int cacheflush(long __addr, long __nbytes, long __cache);
-    /* __attribute__((deprecated("use __builtin___clear_cache instead"))); */
 #endif
 
 pid_t tcgetpgrp(int __fd);
diff --git a/libc/kernel/tools/defaults.py b/libc/kernel/tools/defaults.py
index 1d7b427..06afb25 100644
--- a/libc/kernel/tools/defaults.py
+++ b/libc/kernel/tools/defaults.py
@@ -32,8 +32,10 @@
 # addition to removing the structure, add a #include to the file.
 kernel_structs_to_remove = {
     # Remove these structures since they are still the same as
-    # timeval, itimerval.
-    "__kernel_old_timeval": None,
+    # timeval, itimerval. Also, add an include of linux/time.h
+    # since __kernel_old_timeval is being changed to timeval, and
+    # is only present in linux/time.h.
+    "__kernel_old_timeval": "linux/time.h",
     "__kernel_old_itimerval": None,
     # Replace all of the below structures with #include <bits/STRUCT.h>
     "__kernel_sockaddr_storage": "bits/sockaddr_storage.h",
diff --git a/libc/kernel/uapi/asm-arm/asm/unistd-eabi.h b/libc/kernel/uapi/asm-arm/asm/unistd-eabi.h
index 482b9cb..1032131 100644
--- a/libc/kernel/uapi/asm-arm/asm/unistd-eabi.h
+++ b/libc/kernel/uapi/asm-arm/asm/unistd-eabi.h
@@ -415,4 +415,9 @@
 #define __NR_futex_wake (__NR_SYSCALL_BASE + 454)
 #define __NR_futex_wait (__NR_SYSCALL_BASE + 455)
 #define __NR_futex_requeue (__NR_SYSCALL_BASE + 456)
+#define __NR_statmount (__NR_SYSCALL_BASE + 457)
+#define __NR_listmount (__NR_SYSCALL_BASE + 458)
+#define __NR_lsm_get_self_attr (__NR_SYSCALL_BASE + 459)
+#define __NR_lsm_set_self_attr (__NR_SYSCALL_BASE + 460)
+#define __NR_lsm_list_modules (__NR_SYSCALL_BASE + 461)
 #endif
diff --git a/libc/kernel/uapi/asm-arm/asm/unistd-oabi.h b/libc/kernel/uapi/asm-arm/asm/unistd-oabi.h
index 5126831..1f57604 100644
--- a/libc/kernel/uapi/asm-arm/asm/unistd-oabi.h
+++ b/libc/kernel/uapi/asm-arm/asm/unistd-oabi.h
@@ -427,4 +427,9 @@
 #define __NR_futex_wake (__NR_SYSCALL_BASE + 454)
 #define __NR_futex_wait (__NR_SYSCALL_BASE + 455)
 #define __NR_futex_requeue (__NR_SYSCALL_BASE + 456)
+#define __NR_statmount (__NR_SYSCALL_BASE + 457)
+#define __NR_listmount (__NR_SYSCALL_BASE + 458)
+#define __NR_lsm_get_self_attr (__NR_SYSCALL_BASE + 459)
+#define __NR_lsm_set_self_attr (__NR_SYSCALL_BASE + 460)
+#define __NR_lsm_list_modules (__NR_SYSCALL_BASE + 461)
 #endif
diff --git a/libc/kernel/uapi/asm-arm64/asm/hwcap.h b/libc/kernel/uapi/asm-arm64/asm/hwcap.h
index 5abff63..f5c720a 100644
--- a/libc/kernel/uapi/asm-arm64/asm/hwcap.h
+++ b/libc/kernel/uapi/asm-arm64/asm/hwcap.h
@@ -86,4 +86,19 @@
 #define HWCAP2_SVE_B16B16 (1UL << 45)
 #define HWCAP2_LRCPC3 (1UL << 46)
 #define HWCAP2_LSE128 (1UL << 47)
+#define HWCAP2_FPMR (1UL << 48)
+#define HWCAP2_LUT (1UL << 49)
+#define HWCAP2_FAMINMAX (1UL << 50)
+#define HWCAP2_F8CVT (1UL << 51)
+#define HWCAP2_F8FMA (1UL << 52)
+#define HWCAP2_F8DP4 (1UL << 53)
+#define HWCAP2_F8DP2 (1UL << 54)
+#define HWCAP2_F8E4M3 (1UL << 55)
+#define HWCAP2_F8E5M2 (1UL << 56)
+#define HWCAP2_SME_LUTV2 (1UL << 57)
+#define HWCAP2_SME_F8F16 (1UL << 58)
+#define HWCAP2_SME_F8F32 (1UL << 59)
+#define HWCAP2_SME_SF8FMA (1UL << 60)
+#define HWCAP2_SME_SF8DP4 (1UL << 61)
+#define HWCAP2_SME_SF8DP2 (1UL << 62)
 #endif
diff --git a/libc/kernel/uapi/asm-arm64/asm/kvm.h b/libc/kernel/uapi/asm-arm64/asm/kvm.h
index 5ad9021..1818c5f 100644
--- a/libc/kernel/uapi/asm-arm64/asm/kvm.h
+++ b/libc/kernel/uapi/asm-arm64/asm/kvm.h
@@ -18,9 +18,7 @@
 #include <linux/types.h>
 #include <asm/ptrace.h>
 #include <asm/sve_context.h>
-#define __KVM_HAVE_GUEST_DEBUG
 #define __KVM_HAVE_IRQ_LINE
-#define __KVM_HAVE_READONLY_MEM
 #define __KVM_HAVE_VCPU_EVENTS
 #define KVM_COALESCED_MMIO_PAGE_OFFSET 1
 #define KVM_DIRTY_LOG_PAGE_OFFSET 64
@@ -40,9 +38,9 @@
 #define KVM_ARM_TARGET_GENERIC_V8 5
 #define KVM_ARM_NUM_TARGETS 6
 #define KVM_ARM_DEVICE_TYPE_SHIFT 0
-#define KVM_ARM_DEVICE_TYPE_MASK GENMASK(KVM_ARM_DEVICE_TYPE_SHIFT + 15, KVM_ARM_DEVICE_TYPE_SHIFT)
+#define KVM_ARM_DEVICE_TYPE_MASK __GENMASK(KVM_ARM_DEVICE_TYPE_SHIFT + 15, KVM_ARM_DEVICE_TYPE_SHIFT)
 #define KVM_ARM_DEVICE_ID_SHIFT 16
-#define KVM_ARM_DEVICE_ID_MASK GENMASK(KVM_ARM_DEVICE_ID_SHIFT + 15, KVM_ARM_DEVICE_ID_SHIFT)
+#define KVM_ARM_DEVICE_ID_MASK __GENMASK(KVM_ARM_DEVICE_ID_SHIFT + 15, KVM_ARM_DEVICE_ID_SHIFT)
 #define KVM_ARM_DEVICE_VGIC_V2 0
 #define KVM_VGIC_V2_ADDR_TYPE_DIST 0
 #define KVM_VGIC_V2_ADDR_TYPE_CPU 1
@@ -89,6 +87,9 @@
 struct kvm_sync_regs {
   __u64 device_irq_level;
 };
+#define KVM_ARM_DEV_EL1_VTIMER (1 << 0)
+#define KVM_ARM_DEV_EL1_PTIMER (1 << 1)
+#define KVM_ARM_DEV_PMU (1 << 2)
 struct kvm_pmu_event_filter {
   __u16 base_event;
   __u16 nevents;
diff --git a/libc/kernel/uapi/asm-arm64/asm/sigcontext.h b/libc/kernel/uapi/asm-arm64/asm/sigcontext.h
index 6098fc7..8e48d55 100644
--- a/libc/kernel/uapi/asm-arm64/asm/sigcontext.h
+++ b/libc/kernel/uapi/asm-arm64/asm/sigcontext.h
@@ -52,6 +52,11 @@
   struct _aarch64_ctx head;
   __u64 tpidr2;
 };
+#define FPMR_MAGIC 0x46504d52
+struct fpmr_context {
+  struct _aarch64_ctx head;
+  __u64 fpmr;
+};
 #define ZA_MAGIC 0x54366345
 struct za_context {
   struct _aarch64_ctx head;
diff --git a/libc/kernel/uapi/asm-generic/bitsperlong.h b/libc/kernel/uapi/asm-generic/bitsperlong.h
index 969913b..11dcc1a 100644
--- a/libc/kernel/uapi/asm-generic/bitsperlong.h
+++ b/libc/kernel/uapi/asm-generic/bitsperlong.h
@@ -13,4 +13,7 @@
 #define __BITS_PER_LONG 32
 #endif
 #endif
+#ifndef __BITS_PER_LONG_LONG
+#define __BITS_PER_LONG_LONG 64
+#endif
 #endif
diff --git a/libc/kernel/uapi/asm-generic/unistd.h b/libc/kernel/uapi/asm-generic/unistd.h
index 717a098..c882751 100644
--- a/libc/kernel/uapi/asm-generic/unistd.h
+++ b/libc/kernel/uapi/asm-generic/unistd.h
@@ -407,8 +407,13 @@
 #define __NR_futex_wake 454
 #define __NR_futex_wait 455
 #define __NR_futex_requeue 456
+#define __NR_statmount 457
+#define __NR_listmount 458
+#define __NR_lsm_get_self_attr 459
+#define __NR_lsm_set_self_attr 460
+#define __NR_lsm_list_modules 461
 #undef __NR_syscalls
-#define __NR_syscalls 457
+#define __NR_syscalls 462
 #if __BITS_PER_LONG == 64 && !defined(__SYSCALL_COMPAT)
 #define __NR_fcntl __NR3264_fcntl
 #define __NR_statfs __NR3264_statfs
diff --git a/libc/kernel/uapi/asm-riscv/asm/auxvec.h b/libc/kernel/uapi/asm-riscv/asm/auxvec.h
index 446fc54..755f4e9 100644
--- a/libc/kernel/uapi/asm-riscv/asm/auxvec.h
+++ b/libc/kernel/uapi/asm-riscv/asm/auxvec.h
@@ -15,6 +15,6 @@
 #define AT_L2_CACHEGEOMETRY 45
 #define AT_L3_CACHESIZE 46
 #define AT_L3_CACHEGEOMETRY 47
-#define AT_VECTOR_SIZE_ARCH 9
+#define AT_VECTOR_SIZE_ARCH 10
 #define AT_MINSIGSTKSZ 51
 #endif
diff --git a/libc/kernel/uapi/asm-riscv/asm/hwprobe.h b/libc/kernel/uapi/asm-riscv/asm/hwprobe.h
index a18b020..5c82561 100644
--- a/libc/kernel/uapi/asm-riscv/asm/hwprobe.h
+++ b/libc/kernel/uapi/asm-riscv/asm/hwprobe.h
@@ -24,6 +24,35 @@
 #define RISCV_HWPROBE_EXT_ZBB (1 << 4)
 #define RISCV_HWPROBE_EXT_ZBS (1 << 5)
 #define RISCV_HWPROBE_EXT_ZICBOZ (1 << 6)
+#define RISCV_HWPROBE_EXT_ZBC (1 << 7)
+#define RISCV_HWPROBE_EXT_ZBKB (1 << 8)
+#define RISCV_HWPROBE_EXT_ZBKC (1 << 9)
+#define RISCV_HWPROBE_EXT_ZBKX (1 << 10)
+#define RISCV_HWPROBE_EXT_ZKND (1 << 11)
+#define RISCV_HWPROBE_EXT_ZKNE (1 << 12)
+#define RISCV_HWPROBE_EXT_ZKNH (1 << 13)
+#define RISCV_HWPROBE_EXT_ZKSED (1 << 14)
+#define RISCV_HWPROBE_EXT_ZKSH (1 << 15)
+#define RISCV_HWPROBE_EXT_ZKT (1 << 16)
+#define RISCV_HWPROBE_EXT_ZVBB (1 << 17)
+#define RISCV_HWPROBE_EXT_ZVBC (1 << 18)
+#define RISCV_HWPROBE_EXT_ZVKB (1 << 19)
+#define RISCV_HWPROBE_EXT_ZVKG (1 << 20)
+#define RISCV_HWPROBE_EXT_ZVKNED (1 << 21)
+#define RISCV_HWPROBE_EXT_ZVKNHA (1 << 22)
+#define RISCV_HWPROBE_EXT_ZVKNHB (1 << 23)
+#define RISCV_HWPROBE_EXT_ZVKSED (1 << 24)
+#define RISCV_HWPROBE_EXT_ZVKSH (1 << 25)
+#define RISCV_HWPROBE_EXT_ZVKT (1 << 26)
+#define RISCV_HWPROBE_EXT_ZFH (1 << 27)
+#define RISCV_HWPROBE_EXT_ZFHMIN (1 << 28)
+#define RISCV_HWPROBE_EXT_ZIHINTNTL (1 << 29)
+#define RISCV_HWPROBE_EXT_ZVFH (1 << 30)
+#define RISCV_HWPROBE_EXT_ZVFHMIN (1ULL << 31)
+#define RISCV_HWPROBE_EXT_ZFA (1ULL << 32)
+#define RISCV_HWPROBE_EXT_ZTSO (1ULL << 33)
+#define RISCV_HWPROBE_EXT_ZACAS (1ULL << 34)
+#define RISCV_HWPROBE_EXT_ZICOND (1ULL << 35)
 #define RISCV_HWPROBE_KEY_CPUPERF_0 5
 #define RISCV_HWPROBE_MISALIGNED_UNKNOWN (0 << 0)
 #define RISCV_HWPROBE_MISALIGNED_EMULATED (1 << 0)
@@ -32,4 +61,5 @@
 #define RISCV_HWPROBE_MISALIGNED_UNSUPPORTED (4 << 0)
 #define RISCV_HWPROBE_MISALIGNED_MASK (7 << 0)
 #define RISCV_HWPROBE_KEY_ZICBOZ_BLOCK_SIZE 6
+#define RISCV_HWPROBE_WHICH_CPUS (1 << 0)
 #endif
diff --git a/libc/kernel/uapi/asm-riscv/asm/kvm.h b/libc/kernel/uapi/asm-riscv/asm/kvm.h
index 470d581..4c759ed 100644
--- a/libc/kernel/uapi/asm-riscv/asm/kvm.h
+++ b/libc/kernel/uapi/asm-riscv/asm/kvm.h
@@ -11,7 +11,6 @@
 #include <asm/bitsperlong.h>
 #include <asm/ptrace.h>
 #define __KVM_HAVE_IRQ_LINE
-#define __KVM_HAVE_READONLY_MEM
 #define KVM_COALESCED_MMIO_PAGE_OFFSET 1
 #define KVM_INTERRUPT_SET - 1U
 #define KVM_INTERRUPT_UNSET - 2U
@@ -99,6 +98,35 @@
   KVM_RISCV_ISA_EXT_ZIHPM,
   KVM_RISCV_ISA_EXT_SMSTATEEN,
   KVM_RISCV_ISA_EXT_ZICOND,
+  KVM_RISCV_ISA_EXT_ZBC,
+  KVM_RISCV_ISA_EXT_ZBKB,
+  KVM_RISCV_ISA_EXT_ZBKC,
+  KVM_RISCV_ISA_EXT_ZBKX,
+  KVM_RISCV_ISA_EXT_ZKND,
+  KVM_RISCV_ISA_EXT_ZKNE,
+  KVM_RISCV_ISA_EXT_ZKNH,
+  KVM_RISCV_ISA_EXT_ZKR,
+  KVM_RISCV_ISA_EXT_ZKSED,
+  KVM_RISCV_ISA_EXT_ZKSH,
+  KVM_RISCV_ISA_EXT_ZKT,
+  KVM_RISCV_ISA_EXT_ZVBB,
+  KVM_RISCV_ISA_EXT_ZVBC,
+  KVM_RISCV_ISA_EXT_ZVKB,
+  KVM_RISCV_ISA_EXT_ZVKG,
+  KVM_RISCV_ISA_EXT_ZVKNED,
+  KVM_RISCV_ISA_EXT_ZVKNHA,
+  KVM_RISCV_ISA_EXT_ZVKNHB,
+  KVM_RISCV_ISA_EXT_ZVKSED,
+  KVM_RISCV_ISA_EXT_ZVKSH,
+  KVM_RISCV_ISA_EXT_ZVKT,
+  KVM_RISCV_ISA_EXT_ZFH,
+  KVM_RISCV_ISA_EXT_ZFHMIN,
+  KVM_RISCV_ISA_EXT_ZIHINTNTL,
+  KVM_RISCV_ISA_EXT_ZVFH,
+  KVM_RISCV_ISA_EXT_ZVFHMIN,
+  KVM_RISCV_ISA_EXT_ZFA,
+  KVM_RISCV_ISA_EXT_ZTSO,
+  KVM_RISCV_ISA_EXT_ZACAS,
   KVM_RISCV_ISA_EXT_MAX,
 };
 enum KVM_RISCV_SBI_EXT_ID {
@@ -112,8 +140,13 @@
   KVM_RISCV_SBI_EXT_EXPERIMENTAL,
   KVM_RISCV_SBI_EXT_VENDOR,
   KVM_RISCV_SBI_EXT_DBCN,
+  KVM_RISCV_SBI_EXT_STA,
   KVM_RISCV_SBI_EXT_MAX,
 };
+struct kvm_riscv_sbi_sta {
+  unsigned long shmem_lo;
+  unsigned long shmem_hi;
+};
 #define KVM_RISCV_TIMER_STATE_OFF 0
 #define KVM_RISCV_TIMER_STATE_ON 1
 #define KVM_REG_SIZE(id) (1U << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
@@ -155,6 +188,9 @@
 #define KVM_REG_RISCV_VECTOR (0x09 << KVM_REG_RISCV_TYPE_SHIFT)
 #define KVM_REG_RISCV_VECTOR_CSR_REG(name) (offsetof(struct __riscv_v_ext_state, name) / sizeof(unsigned long))
 #define KVM_REG_RISCV_VECTOR_REG(n) ((n) + sizeof(struct __riscv_v_ext_state) / sizeof(unsigned long))
+#define KVM_REG_RISCV_SBI_STATE (0x0a << KVM_REG_RISCV_TYPE_SHIFT)
+#define KVM_REG_RISCV_SBI_STA (0x0 << KVM_REG_RISCV_SUBTYPE_SHIFT)
+#define KVM_REG_RISCV_SBI_STA_REG(name) (offsetof(struct kvm_riscv_sbi_sta, name) / sizeof(unsigned long))
 #define KVM_DEV_RISCV_APLIC_ALIGN 0x1000
 #define KVM_DEV_RISCV_APLIC_SIZE 0x4000
 #define KVM_DEV_RISCV_APLIC_MAX_HARTS 0x4000
diff --git a/libc/kernel/uapi/asm-x86/asm/bootparam.h b/libc/kernel/uapi/asm-x86/asm/bootparam.h
index c87a8af..6a4b59c 100644
--- a/libc/kernel/uapi/asm-x86/asm/bootparam.h
+++ b/libc/kernel/uapi/asm-x86/asm/bootparam.h
@@ -6,19 +6,7 @@
  */
 #ifndef _ASM_X86_BOOTPARAM_H
 #define _ASM_X86_BOOTPARAM_H
-#define SETUP_NONE 0
-#define SETUP_E820_EXT 1
-#define SETUP_DTB 2
-#define SETUP_PCI 3
-#define SETUP_EFI 4
-#define SETUP_APPLE_PROPERTIES 5
-#define SETUP_JAILHOUSE 6
-#define SETUP_CC_BLOB 7
-#define SETUP_IMA 8
-#define SETUP_RNG_SEED 9
-#define SETUP_ENUM_MAX SETUP_RNG_SEED
-#define SETUP_INDIRECT (1 << 31)
-#define SETUP_TYPE_MAX (SETUP_ENUM_MAX | SETUP_INDIRECT)
+#include <asm/setup_data.h>
 #define RAMDISK_IMAGE_START_MASK 0x07FF
 #define RAMDISK_PROMPT_FLAG 0x8000
 #define RAMDISK_LOAD_FLAG 0x4000
@@ -34,6 +22,7 @@
 #define XLF_EFI_KEXEC (1 << 4)
 #define XLF_5LEVEL (1 << 5)
 #define XLF_5LEVEL_ENABLED (1 << 6)
+#define XLF_MEM_ENCRYPTION (1 << 7)
 #ifndef __ASSEMBLY__
 #include <linux/types.h>
 #include <linux/screen_info.h>
@@ -41,18 +30,6 @@
 #include <linux/edd.h>
 #include <asm/ist.h>
 #include <video/edid.h>
-struct setup_data {
-  __u64 next;
-  __u32 type;
-  __u32 len;
-  __u8 data[];
-};
-struct setup_indirect {
-  __u32 type;
-  __u32 reserved;
-  __u64 len;
-  __u64 addr;
-};
 struct setup_header {
   __u8 setup_sects;
   __u16 root_flags;
@@ -115,34 +92,7 @@
   __u32 efi_memmap_hi;
 };
 #define E820_MAX_ENTRIES_ZEROPAGE 128
-struct boot_e820_entry {
-  __u64 addr;
-  __u64 size;
-  __u32 type;
-} __attribute__((packed));
 #define JAILHOUSE_SETUP_REQUIRED_VERSION 1
-struct jailhouse_setup_data {
-  struct {
-    __u16 version;
-    __u16 compatible_version;
-  } __attribute__((packed)) hdr;
-  struct {
-    __u16 pm_timer_address;
-    __u16 num_cpus;
-    __u64 pci_mmconfig_base;
-    __u32 tsc_khz;
-    __u32 apic_khz;
-    __u8 standard_ioapic;
-    __u8 cpu_ids[255];
-  } __attribute__((packed)) v1;
-  struct {
-    __u32 flags;
-  } __attribute__((packed)) v2;
-} __attribute__((packed));
-struct ima_setup_data {
-  __u64 addr;
-  __u64 size;
-} __attribute__((packed));
 struct boot_params {
   struct screen_info screen_info;
   struct apm_bios_info apm_bios_info;
diff --git a/libc/kernel/uapi/asm-x86/asm/kvm.h b/libc/kernel/uapi/asm-x86/asm/kvm.h
index 334fb25..440ffb8 100644
--- a/libc/kernel/uapi/asm-x86/asm/kvm.h
+++ b/libc/kernel/uapi/asm-x86/asm/kvm.h
@@ -6,6 +6,8 @@
  */
 #ifndef _ASM_X86_KVM_H
 #define _ASM_X86_KVM_H
+#include <linux/const.h>
+#include <linux/bits.h>
 #include <linux/types.h>
 #include <linux/ioctl.h>
 #include <linux/stddef.h>
@@ -35,7 +37,6 @@
 #define __KVM_HAVE_IRQ_LINE
 #define __KVM_HAVE_MSI
 #define __KVM_HAVE_USER_NMI
-#define __KVM_HAVE_GUEST_DEBUG
 #define __KVM_HAVE_MSIX
 #define __KVM_HAVE_MCE
 #define __KVM_HAVE_PIT_STATE2
@@ -44,7 +45,6 @@
 #define __KVM_HAVE_DEBUGREGS
 #define __KVM_HAVE_XSAVE
 #define __KVM_HAVE_XCRS
-#define __KVM_HAVE_READONLY_MEM
 #define KVM_NR_INTERRUPTS 256
 struct kvm_pic_state {
   __u8 last_irr;
@@ -398,15 +398,260 @@
 };
 #define KVM_PMU_EVENT_ALLOW 0
 #define KVM_PMU_EVENT_DENY 1
-#define KVM_PMU_EVENT_FLAG_MASKED_EVENTS BIT(0)
+#define KVM_PMU_EVENT_FLAG_MASKED_EVENTS _BITUL(0)
 #define KVM_PMU_EVENT_FLAGS_VALID_MASK (KVM_PMU_EVENT_FLAG_MASKED_EVENTS)
+struct kvm_x86_mce {
+  __u64 status;
+  __u64 addr;
+  __u64 misc;
+  __u64 mcg_status;
+  __u8 bank;
+  __u8 pad1[7];
+  __u64 pad2[3];
+};
+#define KVM_XEN_HVM_CONFIG_HYPERCALL_MSR (1 << 0)
+#define KVM_XEN_HVM_CONFIG_INTERCEPT_HCALL (1 << 1)
+#define KVM_XEN_HVM_CONFIG_SHARED_INFO (1 << 2)
+#define KVM_XEN_HVM_CONFIG_RUNSTATE (1 << 3)
+#define KVM_XEN_HVM_CONFIG_EVTCHN_2LEVEL (1 << 4)
+#define KVM_XEN_HVM_CONFIG_EVTCHN_SEND (1 << 5)
+#define KVM_XEN_HVM_CONFIG_RUNSTATE_UPDATE_FLAG (1 << 6)
+#define KVM_XEN_HVM_CONFIG_PVCLOCK_TSC_UNSTABLE (1 << 7)
+#define KVM_XEN_HVM_CONFIG_SHARED_INFO_HVA (1 << 8)
+struct kvm_xen_hvm_config {
+  __u32 flags;
+  __u32 msr;
+  __u64 blob_addr_32;
+  __u64 blob_addr_64;
+  __u8 blob_size_32;
+  __u8 blob_size_64;
+  __u8 pad2[30];
+};
+struct kvm_xen_hvm_attr {
+  __u16 type;
+  __u16 pad[3];
+  union {
+    __u8 long_mode;
+    __u8 vector;
+    __u8 runstate_update_flag;
+    union {
+      __u64 gfn;
+#define KVM_XEN_INVALID_GFN ((__u64) - 1)
+      __u64 hva;
+    } shared_info;
+    struct {
+      __u32 send_port;
+      __u32 type;
+      __u32 flags;
+#define KVM_XEN_EVTCHN_DEASSIGN (1 << 0)
+#define KVM_XEN_EVTCHN_UPDATE (1 << 1)
+#define KVM_XEN_EVTCHN_RESET (1 << 2)
+      union {
+        struct {
+          __u32 port;
+          __u32 vcpu;
+          __u32 priority;
+        } port;
+        struct {
+          __u32 port;
+          __s32 fd;
+        } eventfd;
+        __u32 padding[4];
+      } deliver;
+    } evtchn;
+    __u32 xen_version;
+    __u64 pad[8];
+  } u;
+};
+#define KVM_XEN_ATTR_TYPE_LONG_MODE 0x0
+#define KVM_XEN_ATTR_TYPE_SHARED_INFO 0x1
+#define KVM_XEN_ATTR_TYPE_UPCALL_VECTOR 0x2
+#define KVM_XEN_ATTR_TYPE_EVTCHN 0x3
+#define KVM_XEN_ATTR_TYPE_XEN_VERSION 0x4
+#define KVM_XEN_ATTR_TYPE_RUNSTATE_UPDATE_FLAG 0x5
+#define KVM_XEN_ATTR_TYPE_SHARED_INFO_HVA 0x6
+struct kvm_xen_vcpu_attr {
+  __u16 type;
+  __u16 pad[3];
+  union {
+    __u64 gpa;
+#define KVM_XEN_INVALID_GPA ((__u64) - 1)
+    __u64 hva;
+    __u64 pad[8];
+    struct {
+      __u64 state;
+      __u64 state_entry_time;
+      __u64 time_running;
+      __u64 time_runnable;
+      __u64 time_blocked;
+      __u64 time_offline;
+    } runstate;
+    __u32 vcpu_id;
+    struct {
+      __u32 port;
+      __u32 priority;
+      __u64 expires_ns;
+    } timer;
+    __u8 vector;
+  } u;
+};
+#define KVM_XEN_VCPU_ATTR_TYPE_VCPU_INFO 0x0
+#define KVM_XEN_VCPU_ATTR_TYPE_VCPU_TIME_INFO 0x1
+#define KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_ADDR 0x2
+#define KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_CURRENT 0x3
+#define KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_DATA 0x4
+#define KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_ADJUST 0x5
+#define KVM_XEN_VCPU_ATTR_TYPE_VCPU_ID 0x6
+#define KVM_XEN_VCPU_ATTR_TYPE_TIMER 0x7
+#define KVM_XEN_VCPU_ATTR_TYPE_UPCALL_VECTOR 0x8
+#define KVM_XEN_VCPU_ATTR_TYPE_VCPU_INFO_HVA 0x9
+enum sev_cmd_id {
+  KVM_SEV_INIT = 0,
+  KVM_SEV_ES_INIT,
+  KVM_SEV_LAUNCH_START,
+  KVM_SEV_LAUNCH_UPDATE_DATA,
+  KVM_SEV_LAUNCH_UPDATE_VMSA,
+  KVM_SEV_LAUNCH_SECRET,
+  KVM_SEV_LAUNCH_MEASURE,
+  KVM_SEV_LAUNCH_FINISH,
+  KVM_SEV_SEND_START,
+  KVM_SEV_SEND_UPDATE_DATA,
+  KVM_SEV_SEND_UPDATE_VMSA,
+  KVM_SEV_SEND_FINISH,
+  KVM_SEV_RECEIVE_START,
+  KVM_SEV_RECEIVE_UPDATE_DATA,
+  KVM_SEV_RECEIVE_UPDATE_VMSA,
+  KVM_SEV_RECEIVE_FINISH,
+  KVM_SEV_GUEST_STATUS,
+  KVM_SEV_DBG_DECRYPT,
+  KVM_SEV_DBG_ENCRYPT,
+  KVM_SEV_CERT_EXPORT,
+  KVM_SEV_GET_ATTESTATION_REPORT,
+  KVM_SEV_SEND_CANCEL,
+  KVM_SEV_NR_MAX,
+};
+struct kvm_sev_cmd {
+  __u32 id;
+  __u32 pad0;
+  __u64 data;
+  __u32 error;
+  __u32 sev_fd;
+};
+struct kvm_sev_launch_start {
+  __u32 handle;
+  __u32 policy;
+  __u64 dh_uaddr;
+  __u32 dh_len;
+  __u32 pad0;
+  __u64 session_uaddr;
+  __u32 session_len;
+  __u32 pad1;
+};
+struct kvm_sev_launch_update_data {
+  __u64 uaddr;
+  __u32 len;
+  __u32 pad0;
+};
+struct kvm_sev_launch_secret {
+  __u64 hdr_uaddr;
+  __u32 hdr_len;
+  __u32 pad0;
+  __u64 guest_uaddr;
+  __u32 guest_len;
+  __u32 pad1;
+  __u64 trans_uaddr;
+  __u32 trans_len;
+  __u32 pad2;
+};
+struct kvm_sev_launch_measure {
+  __u64 uaddr;
+  __u32 len;
+  __u32 pad0;
+};
+struct kvm_sev_guest_status {
+  __u32 handle;
+  __u32 policy;
+  __u32 state;
+};
+struct kvm_sev_dbg {
+  __u64 src_uaddr;
+  __u64 dst_uaddr;
+  __u32 len;
+  __u32 pad0;
+};
+struct kvm_sev_attestation_report {
+  __u8 mnonce[16];
+  __u64 uaddr;
+  __u32 len;
+  __u32 pad0;
+};
+struct kvm_sev_send_start {
+  __u32 policy;
+  __u32 pad0;
+  __u64 pdh_cert_uaddr;
+  __u32 pdh_cert_len;
+  __u32 pad1;
+  __u64 plat_certs_uaddr;
+  __u32 plat_certs_len;
+  __u32 pad2;
+  __u64 amd_certs_uaddr;
+  __u32 amd_certs_len;
+  __u32 pad3;
+  __u64 session_uaddr;
+  __u32 session_len;
+  __u32 pad4;
+};
+struct kvm_sev_send_update_data {
+  __u64 hdr_uaddr;
+  __u32 hdr_len;
+  __u32 pad0;
+  __u64 guest_uaddr;
+  __u32 guest_len;
+  __u32 pad1;
+  __u64 trans_uaddr;
+  __u32 trans_len;
+  __u32 pad2;
+};
+struct kvm_sev_receive_start {
+  __u32 handle;
+  __u32 policy;
+  __u64 pdh_uaddr;
+  __u32 pdh_len;
+  __u32 pad0;
+  __u64 session_uaddr;
+  __u32 session_len;
+  __u32 pad1;
+};
+struct kvm_sev_receive_update_data {
+  __u64 hdr_uaddr;
+  __u32 hdr_len;
+  __u32 pad0;
+  __u64 guest_uaddr;
+  __u32 guest_len;
+  __u32 pad1;
+  __u64 trans_uaddr;
+  __u32 trans_len;
+  __u32 pad2;
+};
+#define KVM_X2APIC_API_USE_32BIT_IDS (1ULL << 0)
+#define KVM_X2APIC_API_DISABLE_BROADCAST_QUIRK (1ULL << 1)
+struct kvm_hyperv_eventfd {
+  __u32 conn_id;
+  __s32 fd;
+  __u32 flags;
+  __u32 padding[3];
+};
+#define KVM_HYPERV_CONN_ID_MASK 0x00ffffff
+#define KVM_HYPERV_EVENTFD_DEASSIGN (1 << 0)
 #define KVM_PMU_ENCODE_MASKED_ENTRY(event_select,mask,match,exclude) (((event_select) & 0xFFULL) | (((event_select) & 0XF00ULL) << 24) | (((mask) & 0xFFULL) << 56) | (((match) & 0xFFULL) << 8) | ((__u64) (! ! (exclude)) << 55))
-#define KVM_PMU_MASKED_ENTRY_EVENT_SELECT (GENMASK_ULL(7, 0) | GENMASK_ULL(35, 32))
-#define KVM_PMU_MASKED_ENTRY_UMASK_MASK (GENMASK_ULL(63, 56))
-#define KVM_PMU_MASKED_ENTRY_UMASK_MATCH (GENMASK_ULL(15, 8))
-#define KVM_PMU_MASKED_ENTRY_EXCLUDE (BIT_ULL(55))
+#define KVM_PMU_MASKED_ENTRY_EVENT_SELECT (__GENMASK_ULL(7, 0) | __GENMASK_ULL(35, 32))
+#define KVM_PMU_MASKED_ENTRY_UMASK_MASK (__GENMASK_ULL(63, 56))
+#define KVM_PMU_MASKED_ENTRY_UMASK_MATCH (__GENMASK_ULL(15, 8))
+#define KVM_PMU_MASKED_ENTRY_EXCLUDE (_BITULL(55))
 #define KVM_PMU_MASKED_ENTRY_UMASK_MASK_SHIFT (56)
 #define KVM_VCPU_TSC_CTRL 0
 #define KVM_VCPU_TSC_OFFSET 0
-#define KVM_EXIT_HYPERCALL_LONG_MODE BIT(0)
+#define KVM_EXIT_HYPERCALL_LONG_MODE _BITULL(0)
+#define KVM_X86_DEFAULT_VM 0
+#define KVM_X86_SW_PROTECTED_VM 1
 #endif
diff --git a/libc/kernel/uapi/asm-x86/asm/kvm_para.h b/libc/kernel/uapi/asm-x86/asm/kvm_para.h
index 03421ed..3395a15 100644
--- a/libc/kernel/uapi/asm-x86/asm/kvm_para.h
+++ b/libc/kernel/uapi/asm-x86/asm/kvm_para.h
@@ -67,7 +67,7 @@
 #define KVM_ASYNC_PF_SEND_ALWAYS (1 << 1)
 #define KVM_ASYNC_PF_DELIVERY_AS_PF_VMEXIT (1 << 2)
 #define KVM_ASYNC_PF_DELIVERY_AS_INT (1 << 3)
-#define KVM_ASYNC_PF_VEC_MASK GENMASK(7, 0)
+#define KVM_ASYNC_PF_VEC_MASK __GENMASK(7, 0)
 #define KVM_MIGRATION_READY (1 << 0)
 #define KVM_MAP_GPA_RANGE_PAGE_SZ_4K 0
 #define KVM_MAP_GPA_RANGE_PAGE_SZ_2M (1 << 0)
@@ -100,7 +100,6 @@
   __u32 flags;
   __u32 token;
   __u8 pad[56];
-  __u32 enabled;
 };
 #define KVM_PV_EOI_BIT 0
 #define KVM_PV_EOI_MASK (0x1 << KVM_PV_EOI_BIT)
diff --git a/libc/kernel/uapi/asm-x86/asm/processor-flags.h b/libc/kernel/uapi/asm-x86/asm/processor-flags.h
index f06fdda..9842847 100644
--- a/libc/kernel/uapi/asm-x86/asm/processor-flags.h
+++ b/libc/kernel/uapi/asm-x86/asm/processor-flags.h
@@ -123,6 +123,12 @@
 #define X86_CR4_CET _BITUL(X86_CR4_CET_BIT)
 #define X86_CR4_LAM_SUP_BIT 28
 #define X86_CR4_LAM_SUP _BITUL(X86_CR4_LAM_SUP_BIT)
+#ifdef __x86_64__
+#define X86_CR4_FRED_BIT 32
+#define X86_CR4_FRED _BITUL(X86_CR4_FRED_BIT)
+#else
+#define X86_CR4_FRED (0)
+#endif
 #define X86_CR8_TPR _AC(0x0000000f, UL)
 #define CX86_PCR0 0x20
 #define CX86_GCR 0xb8
diff --git a/libc/kernel/uapi/asm-x86/asm/setup_data.h b/libc/kernel/uapi/asm-x86/asm/setup_data.h
new file mode 100644
index 0000000..d00a554
--- /dev/null
+++ b/libc/kernel/uapi/asm-x86/asm/setup_data.h
@@ -0,0 +1,64 @@
+/*
+ * This file is auto-generated. Modifications will be lost.
+ *
+ * See https://android.googlesource.com/platform/bionic/+/master/libc/kernel/
+ * for more information.
+ */
+#ifndef _UAPI_ASM_X86_SETUP_DATA_H
+#define _UAPI_ASM_X86_SETUP_DATA_H
+#define SETUP_NONE 0
+#define SETUP_E820_EXT 1
+#define SETUP_DTB 2
+#define SETUP_PCI 3
+#define SETUP_EFI 4
+#define SETUP_APPLE_PROPERTIES 5
+#define SETUP_JAILHOUSE 6
+#define SETUP_CC_BLOB 7
+#define SETUP_IMA 8
+#define SETUP_RNG_SEED 9
+#define SETUP_ENUM_MAX SETUP_RNG_SEED
+#define SETUP_INDIRECT (1 << 31)
+#define SETUP_TYPE_MAX (SETUP_ENUM_MAX | SETUP_INDIRECT)
+#ifndef __ASSEMBLY__
+#include <linux/types.h>
+struct setup_data {
+  __u64 next;
+  __u32 type;
+  __u32 len;
+  __u8 data[];
+};
+struct setup_indirect {
+  __u32 type;
+  __u32 reserved;
+  __u64 len;
+  __u64 addr;
+};
+struct boot_e820_entry {
+  __u64 addr;
+  __u64 size;
+  __u32 type;
+} __attribute__((packed));
+struct jailhouse_setup_data {
+  struct {
+    __u16 version;
+    __u16 compatible_version;
+  } __attribute__((packed)) hdr;
+  struct {
+    __u16 pm_timer_address;
+    __u16 num_cpus;
+    __u64 pci_mmconfig_base;
+    __u32 tsc_khz;
+    __u32 apic_khz;
+    __u8 standard_ioapic;
+    __u8 cpu_ids[255];
+  } __attribute__((packed)) v1;
+  struct {
+    __u32 flags;
+  } __attribute__((packed)) v2;
+} __attribute__((packed));
+struct ima_setup_data {
+  __u64 addr;
+  __u64 size;
+} __attribute__((packed));
+#endif
+#endif
diff --git a/libc/kernel/uapi/asm-x86/asm/signal.h b/libc/kernel/uapi/asm-x86/asm/signal.h
index 96ac8fb..6cffef3 100644
--- a/libc/kernel/uapi/asm-x86/asm/signal.h
+++ b/libc/kernel/uapi/asm-x86/asm/signal.h
@@ -8,7 +8,6 @@
 #define _UAPI_ASM_X86_SIGNAL_H
 #ifndef __ASSEMBLY__
 #include <linux/types.h>
-#include <linux/time.h>
 #include <linux/compiler.h>
 struct siginfo;
 #define _KERNEL_NSIG 32
diff --git a/libc/kernel/uapi/asm-x86/asm/unistd_32.h b/libc/kernel/uapi/asm-x86/asm/unistd_32.h
index e82b988..72076fd 100644
--- a/libc/kernel/uapi/asm-x86/asm/unistd_32.h
+++ b/libc/kernel/uapi/asm-x86/asm/unistd_32.h
@@ -452,4 +452,9 @@
 #define __NR_futex_wake 454
 #define __NR_futex_wait 455
 #define __NR_futex_requeue 456
+#define __NR_statmount 457
+#define __NR_listmount 458
+#define __NR_lsm_get_self_attr 459
+#define __NR_lsm_set_self_attr 460
+#define __NR_lsm_list_modules 461
 #endif
diff --git a/libc/kernel/uapi/asm-x86/asm/unistd_64.h b/libc/kernel/uapi/asm-x86/asm/unistd_64.h
index 10d6e96..8c4f76e 100644
--- a/libc/kernel/uapi/asm-x86/asm/unistd_64.h
+++ b/libc/kernel/uapi/asm-x86/asm/unistd_64.h
@@ -374,4 +374,9 @@
 #define __NR_futex_wake 454
 #define __NR_futex_wait 455
 #define __NR_futex_requeue 456
+#define __NR_statmount 457
+#define __NR_listmount 458
+#define __NR_lsm_get_self_attr 459
+#define __NR_lsm_set_self_attr 460
+#define __NR_lsm_list_modules 461
 #endif
diff --git a/libc/kernel/uapi/asm-x86/asm/unistd_x32.h b/libc/kernel/uapi/asm-x86/asm/unistd_x32.h
index 7fbbe11..984cfca 100644
--- a/libc/kernel/uapi/asm-x86/asm/unistd_x32.h
+++ b/libc/kernel/uapi/asm-x86/asm/unistd_x32.h
@@ -326,6 +326,11 @@
 #define __NR_futex_wake (__X32_SYSCALL_BIT + 454)
 #define __NR_futex_wait (__X32_SYSCALL_BIT + 455)
 #define __NR_futex_requeue (__X32_SYSCALL_BIT + 456)
+#define __NR_statmount (__X32_SYSCALL_BIT + 457)
+#define __NR_listmount (__X32_SYSCALL_BIT + 458)
+#define __NR_lsm_get_self_attr (__X32_SYSCALL_BIT + 459)
+#define __NR_lsm_set_self_attr (__X32_SYSCALL_BIT + 460)
+#define __NR_lsm_list_modules (__X32_SYSCALL_BIT + 461)
 #define __NR_rt_sigaction (__X32_SYSCALL_BIT + 512)
 #define __NR_rt_sigreturn (__X32_SYSCALL_BIT + 513)
 #define __NR_ioctl (__X32_SYSCALL_BIT + 514)
diff --git a/libc/kernel/uapi/drm/amdgpu_drm.h b/libc/kernel/uapi/drm/amdgpu_drm.h
index 1e5b8e3..0ad0bc2 100644
--- a/libc/kernel/uapi/drm/amdgpu_drm.h
+++ b/libc/kernel/uapi/drm/amdgpu_drm.h
@@ -490,6 +490,7 @@
 #define AMDGPU_INFO_SENSOR_STABLE_PSTATE_GFX_MCLK 0x9
 #define AMDGPU_INFO_SENSOR_PEAK_PSTATE_GFX_SCLK 0xa
 #define AMDGPU_INFO_SENSOR_PEAK_PSTATE_GFX_MCLK 0xb
+#define AMDGPU_INFO_SENSOR_GPU_INPUT_POWER 0xc
 #define AMDGPU_INFO_NUM_VRAM_CPU_PAGE_FAULTS 0x1E
 #define AMDGPU_INFO_VRAM_LOST_COUNTER 0x1F
 #define AMDGPU_INFO_RAS_ENABLED_FEATURES 0x20
diff --git a/libc/kernel/uapi/drm/drm.h b/libc/kernel/uapi/drm/drm.h
index 0fe5c26..c8fab3c 100644
--- a/libc/kernel/uapi/drm/drm.h
+++ b/libc/kernel/uapi/drm/drm.h
@@ -353,6 +353,7 @@
 #define DRM_CAP_CRTC_IN_VBLANK_EVENT 0x12
 #define DRM_CAP_SYNCOBJ 0x13
 #define DRM_CAP_SYNCOBJ_TIMELINE 0x14
+#define DRM_CAP_ATOMIC_ASYNC_PAGE_FLIP 0x15
 struct drm_get_cap {
   __u64 capability;
   __u64 value;
@@ -362,6 +363,7 @@
 #define DRM_CLIENT_CAP_ATOMIC 3
 #define DRM_CLIENT_CAP_ASPECT_RATIO 4
 #define DRM_CLIENT_CAP_WRITEBACK_CONNECTORS 5
+#define DRM_CLIENT_CAP_CURSOR_PLANE_HOTSPOT 6
 struct drm_set_client_cap {
   __u64 capability;
   __u64 value;
@@ -401,6 +403,7 @@
 #define DRM_SYNCOBJ_WAIT_FLAGS_WAIT_ALL (1 << 0)
 #define DRM_SYNCOBJ_WAIT_FLAGS_WAIT_FOR_SUBMIT (1 << 1)
 #define DRM_SYNCOBJ_WAIT_FLAGS_WAIT_AVAILABLE (1 << 2)
+#define DRM_SYNCOBJ_WAIT_FLAGS_WAIT_DEADLINE (1 << 3)
 struct drm_syncobj_wait {
   __u64 handles;
   __s64 timeout_nsec;
@@ -408,6 +411,7 @@
   __u32 flags;
   __u32 first_signaled;
   __u32 pad;
+  __u64 deadline_nsec;
 };
 struct drm_syncobj_timeline_wait {
   __u64 handles;
@@ -417,6 +421,7 @@
   __u32 flags;
   __u32 first_signaled;
   __u32 pad;
+  __u64 deadline_nsec;
 };
 struct drm_syncobj_eventfd {
   __u32 handle;
@@ -570,6 +575,7 @@
 #define DRM_IOCTL_SYNCOBJ_TIMELINE_SIGNAL DRM_IOWR(0xCD, struct drm_syncobj_timeline_array)
 #define DRM_IOCTL_MODE_GETFB2 DRM_IOWR(0xCE, struct drm_mode_fb_cmd2)
 #define DRM_IOCTL_SYNCOBJ_EVENTFD DRM_IOWR(0xCF, struct drm_syncobj_eventfd)
+#define DRM_IOCTL_MODE_CLOSEFB DRM_IOWR(0xD0, struct drm_mode_closefb)
 #define DRM_COMMAND_BASE 0x40
 #define DRM_COMMAND_END 0xA0
 struct drm_event {
diff --git a/libc/kernel/uapi/drm/drm_mode.h b/libc/kernel/uapi/drm/drm_mode.h
index f7b65b2..9e6296c 100644
--- a/libc/kernel/uapi/drm/drm_mode.h
+++ b/libc/kernel/uapi/drm/drm_mode.h
@@ -357,6 +357,9 @@
 struct drm_color_ctm {
   __u64 matrix[9];
 };
+struct drm_color_ctm_3x4 {
+  __u64 matrix[12];
+};
 struct drm_color_lut {
   __u16 red;
   __u16 green;
@@ -483,6 +486,10 @@
   __s32 x2;
   __s32 y2;
 };
+struct drm_mode_closefb {
+  __u32 fb_id;
+  __u32 pad;
+};
 #ifdef __cplusplus
 }
 #endif
diff --git a/libc/kernel/uapi/drm/habanalabs_accel.h b/libc/kernel/uapi/drm/habanalabs_accel.h
index 158e937..47afb82 100644
--- a/libc/kernel/uapi/drm/habanalabs_accel.h
+++ b/libc/kernel/uapi/drm/habanalabs_accel.h
@@ -656,6 +656,7 @@
 #define HL_INFO_HW_ERR_EVENT 36
 #define HL_INFO_FW_ERR_EVENT 37
 #define HL_INFO_USER_ENGINE_ERR_EVENT 38
+#define HL_INFO_DEV_SIGNED 40
 #define HL_INFO_VERSION_MAX_LEN 128
 #define HL_INFO_CARD_NAME_MAX_LEN 16
 #define HL_ENGINES_DATA_MAX_SIZE SZ_1M
@@ -849,6 +850,7 @@
 #define SEC_SIGNATURE_BUF_SZ 255
 #define SEC_PUB_DATA_BUF_SZ 510
 #define SEC_CERTIFICATE_BUF_SZ 2046
+#define SEC_DEV_INFO_BUF_SZ 5120
 struct hl_info_sec_attest {
   __u32 nonce;
   __u16 pcr_quote_len;
@@ -864,6 +866,18 @@
   __u8 certificate[SEC_CERTIFICATE_BUF_SZ];
   __u8 pad0[2];
 };
+struct hl_info_signed {
+  __u32 nonce;
+  __u16 pub_data_len;
+  __u16 certificate_len;
+  __u8 info_sig_len;
+  __u8 public_data[SEC_PUB_DATA_BUF_SZ];
+  __u8 certificate[SEC_CERTIFICATE_BUF_SZ];
+  __u8 info_sig[SEC_SIGNATURE_BUF_SZ];
+  __u16 dev_info_len;
+  __u8 dev_info[SEC_DEV_INFO_BUF_SZ];
+  __u8 pad[2];
+};
 struct hl_page_fault_info {
   __s64 timestamp;
   __u64 addr;
diff --git a/libc/kernel/uapi/drm/i915_drm.h b/libc/kernel/uapi/drm/i915_drm.h
index ccb8278..0738cee 100644
--- a/libc/kernel/uapi/drm/i915_drm.h
+++ b/libc/kernel/uapi/drm/i915_drm.h
@@ -901,6 +901,7 @@
 #define DRM_I915_QUERY_MEMORY_REGIONS 4
 #define DRM_I915_QUERY_HWCONFIG_BLOB 5
 #define DRM_I915_QUERY_GEOMETRY_SUBSLICES 6
+#define DRM_I915_QUERY_GUC_SUBMISSION_VERSION 7
   __s32 length;
   __u32 flags;
 #define DRM_I915_QUERY_PERF_CONFIG_LIST 1
@@ -976,6 +977,12 @@
   __u32 rsvd[3];
   struct drm_i915_memory_region_info regions[];
 };
+struct drm_i915_query_guc_submission_version {
+  __u32 branch;
+  __u32 major;
+  __u32 minor;
+  __u32 patch;
+};
 struct drm_i915_gem_create_ext {
   __u64 size;
   __u32 handle;
diff --git a/libc/kernel/uapi/drm/ivpu_accel.h b/libc/kernel/uapi/drm/ivpu_accel.h
index ca2014f..fcbf6f7 100644
--- a/libc/kernel/uapi/drm/ivpu_accel.h
+++ b/libc/kernel/uapi/drm/ivpu_accel.h
@@ -43,6 +43,11 @@
 #define DRM_IVPU_CONTEXT_PRIORITY_NORMAL 1
 #define DRM_IVPU_CONTEXT_PRIORITY_FOCUS 2
 #define DRM_IVPU_CONTEXT_PRIORITY_REALTIME 3
+#define DRM_IVPU_JOB_PRIORITY_DEFAULT 0
+#define DRM_IVPU_JOB_PRIORITY_IDLE 1
+#define DRM_IVPU_JOB_PRIORITY_NORMAL 2
+#define DRM_IVPU_JOB_PRIORITY_FOCUS 3
+#define DRM_IVPU_JOB_PRIORITY_REALTIME 4
 #define DRM_IVPU_CAP_METRIC_STREAMER 1
 #define DRM_IVPU_CAP_DMA_MEMORY_RANGE 2
 struct drm_ivpu_param {
@@ -80,8 +85,10 @@
   __u32 engine;
   __u32 flags;
   __u32 commands_offset;
+  __u32 priority;
 };
 #define DRM_IVPU_JOB_STATUS_SUCCESS 0
+#define DRM_IVPU_JOB_STATUS_ABORTED 256
 struct drm_ivpu_bo_wait {
   __u32 handle;
   __u32 flags;
diff --git a/libc/kernel/uapi/drm/msm_drm.h b/libc/kernel/uapi/drm/msm_drm.h
index d180f70..4d83744 100644
--- a/libc/kernel/uapi/drm/msm_drm.h
+++ b/libc/kernel/uapi/drm/msm_drm.h
@@ -36,6 +36,7 @@
 #define MSM_PARAM_CMDLINE 0x0d
 #define MSM_PARAM_VA_START 0x0e
 #define MSM_PARAM_VA_SIZE 0x0f
+#define MSM_PARAM_HIGHEST_BANK_BIT 0x10
 #define MSM_PARAM_NR_RINGS MSM_PARAM_PRIORITIES
 struct drm_msm_param {
   __u32 pipe;
@@ -63,6 +64,8 @@
 #define MSM_INFO_GET_NAME 0x03
 #define MSM_INFO_SET_IOVA 0x04
 #define MSM_INFO_GET_FLAGS 0x05
+#define MSM_INFO_SET_METADATA 0x06
+#define MSM_INFO_GET_METADATA 0x07
 struct drm_msm_gem_info {
   __u32 handle;
   __u32 info;
diff --git a/libc/kernel/uapi/drm/nouveau_drm.h b/libc/kernel/uapi/drm/nouveau_drm.h
index 221ff21..f7d870e 100644
--- a/libc/kernel/uapi/drm/nouveau_drm.h
+++ b/libc/kernel/uapi/drm/nouveau_drm.h
@@ -23,6 +23,8 @@
 #define NOUVEAU_GETPARAM_HAS_BO_USAGE 15
 #define NOUVEAU_GETPARAM_HAS_PAGEFLIP 16
 #define NOUVEAU_GETPARAM_EXEC_PUSH_MAX 17
+#define NOUVEAU_GETPARAM_VRAM_BAR_SIZE 18
+#define NOUVEAU_GETPARAM_VRAM_USED 19
 struct drm_nouveau_getparam {
   __u64 param;
   __u64 value;
diff --git a/libc/kernel/uapi/drm/pvr_drm.h b/libc/kernel/uapi/drm/pvr_drm.h
new file mode 100644
index 0000000..c68c719
--- /dev/null
+++ b/libc/kernel/uapi/drm/pvr_drm.h
@@ -0,0 +1,271 @@
+/*
+ * This file is auto-generated. Modifications will be lost.
+ *
+ * See https://android.googlesource.com/platform/bionic/+/master/libc/kernel/
+ * for more information.
+ */
+#ifndef PVR_DRM_UAPI_H
+#define PVR_DRM_UAPI_H
+#include "drm.h"
+#include <linux/const.h>
+#include <linux/types.h>
+#ifdef __cplusplus
+extern "C" {
+#endif
+struct drm_pvr_obj_array {
+  __u32 stride;
+  __u32 count;
+  __u64 array;
+};
+#define DRM_PVR_OBJ_ARRAY(cnt,ptr) {.stride = sizeof((ptr)[0]),.count = (cnt),.array = (__u64) (uintptr_t) (ptr) }
+#define PVR_IOCTL(_ioctl,_mode,_data) _mode(DRM_COMMAND_BASE + (_ioctl), struct drm_pvr_ioctl_ ##_data ##_args)
+#define DRM_IOCTL_PVR_DEV_QUERY PVR_IOCTL(0x00, DRM_IOWR, dev_query)
+#define DRM_IOCTL_PVR_CREATE_BO PVR_IOCTL(0x01, DRM_IOWR, create_bo)
+#define DRM_IOCTL_PVR_GET_BO_MMAP_OFFSET PVR_IOCTL(0x02, DRM_IOWR, get_bo_mmap_offset)
+#define DRM_IOCTL_PVR_CREATE_VM_CONTEXT PVR_IOCTL(0x03, DRM_IOWR, create_vm_context)
+#define DRM_IOCTL_PVR_DESTROY_VM_CONTEXT PVR_IOCTL(0x04, DRM_IOW, destroy_vm_context)
+#define DRM_IOCTL_PVR_VM_MAP PVR_IOCTL(0x05, DRM_IOW, vm_map)
+#define DRM_IOCTL_PVR_VM_UNMAP PVR_IOCTL(0x06, DRM_IOW, vm_unmap)
+#define DRM_IOCTL_PVR_CREATE_CONTEXT PVR_IOCTL(0x07, DRM_IOWR, create_context)
+#define DRM_IOCTL_PVR_DESTROY_CONTEXT PVR_IOCTL(0x08, DRM_IOW, destroy_context)
+#define DRM_IOCTL_PVR_CREATE_FREE_LIST PVR_IOCTL(0x09, DRM_IOWR, create_free_list)
+#define DRM_IOCTL_PVR_DESTROY_FREE_LIST PVR_IOCTL(0x0a, DRM_IOW, destroy_free_list)
+#define DRM_IOCTL_PVR_CREATE_HWRT_DATASET PVR_IOCTL(0x0b, DRM_IOWR, create_hwrt_dataset)
+#define DRM_IOCTL_PVR_DESTROY_HWRT_DATASET PVR_IOCTL(0x0c, DRM_IOW, destroy_hwrt_dataset)
+#define DRM_IOCTL_PVR_SUBMIT_JOBS PVR_IOCTL(0x0d, DRM_IOW, submit_jobs)
+struct drm_pvr_dev_query_gpu_info {
+  __u64 gpu_id;
+  __u32 num_phantoms;
+  __u32 _padding_c;
+};
+struct drm_pvr_dev_query_runtime_info {
+  __u64 free_list_min_pages;
+  __u64 free_list_max_pages;
+  __u32 common_store_alloc_region_size;
+  __u32 common_store_partition_space_size;
+  __u32 max_coeffs;
+  __u32 cdm_max_local_mem_size_regs;
+};
+struct drm_pvr_dev_query_quirks {
+  __u64 quirks;
+  __u16 count;
+  __u16 musthave_count;
+  __u32 _padding_c;
+};
+struct drm_pvr_dev_query_enhancements {
+  __u64 enhancements;
+  __u16 count;
+  __u16 _padding_a;
+  __u32 _padding_c;
+};
+enum drm_pvr_heap_id {
+  DRM_PVR_HEAP_GENERAL = 0,
+  DRM_PVR_HEAP_PDS_CODE_DATA,
+  DRM_PVR_HEAP_USC_CODE,
+  DRM_PVR_HEAP_RGNHDR,
+  DRM_PVR_HEAP_VIS_TEST,
+  DRM_PVR_HEAP_TRANSFER_FRAG,
+  DRM_PVR_HEAP_COUNT
+};
+struct drm_pvr_heap {
+  __u64 base;
+  __u64 size;
+  __u32 flags;
+  __u32 page_size_log2;
+};
+struct drm_pvr_dev_query_heap_info {
+  struct drm_pvr_obj_array heaps;
+};
+enum drm_pvr_static_data_area_usage {
+  DRM_PVR_STATIC_DATA_AREA_EOT = 0,
+  DRM_PVR_STATIC_DATA_AREA_FENCE,
+  DRM_PVR_STATIC_DATA_AREA_VDM_SYNC,
+  DRM_PVR_STATIC_DATA_AREA_YUV_CSC,
+};
+struct drm_pvr_static_data_area {
+  __u16 area_usage;
+  __u16 location_heap_id;
+  __u32 size;
+  __u64 offset;
+};
+struct drm_pvr_dev_query_static_data_areas {
+  struct drm_pvr_obj_array static_data_areas;
+};
+enum drm_pvr_dev_query {
+  DRM_PVR_DEV_QUERY_GPU_INFO_GET = 0,
+  DRM_PVR_DEV_QUERY_RUNTIME_INFO_GET,
+  DRM_PVR_DEV_QUERY_QUIRKS_GET,
+  DRM_PVR_DEV_QUERY_ENHANCEMENTS_GET,
+  DRM_PVR_DEV_QUERY_HEAP_INFO_GET,
+  DRM_PVR_DEV_QUERY_STATIC_DATA_AREAS_GET,
+};
+struct drm_pvr_ioctl_dev_query_args {
+  __u32 type;
+  __u32 size;
+  __u64 pointer;
+};
+#define DRM_PVR_BO_BYPASS_DEVICE_CACHE _BITULL(0)
+#define DRM_PVR_BO_PM_FW_PROTECT _BITULL(1)
+#define DRM_PVR_BO_ALLOW_CPU_USERSPACE_ACCESS _BITULL(2)
+#define DRM_PVR_BO_FLAGS_MASK (DRM_PVR_BO_BYPASS_DEVICE_CACHE | DRM_PVR_BO_PM_FW_PROTECT | DRM_PVR_BO_ALLOW_CPU_USERSPACE_ACCESS)
+struct drm_pvr_ioctl_create_bo_args {
+  __u64 size;
+  __u32 handle;
+  __u32 _padding_c;
+  __u64 flags;
+};
+struct drm_pvr_ioctl_get_bo_mmap_offset_args {
+  __u32 handle;
+  __u32 _padding_4;
+  __u64 offset;
+};
+struct drm_pvr_ioctl_create_vm_context_args {
+  __u32 handle;
+  __u32 _padding_4;
+};
+struct drm_pvr_ioctl_destroy_vm_context_args {
+  __u32 handle;
+  __u32 _padding_4;
+};
+struct drm_pvr_ioctl_vm_map_args {
+  __u32 vm_context_handle;
+  __u32 flags;
+  __u64 device_addr;
+  __u32 handle;
+  __u32 _padding_14;
+  __u64 offset;
+  __u64 size;
+};
+struct drm_pvr_ioctl_vm_unmap_args {
+  __u32 vm_context_handle;
+  __u32 _padding_4;
+  __u64 device_addr;
+  __u64 size;
+};
+enum drm_pvr_ctx_priority {
+  DRM_PVR_CTX_PRIORITY_LOW = - 512,
+  DRM_PVR_CTX_PRIORITY_NORMAL = 0,
+  DRM_PVR_CTX_PRIORITY_HIGH = 512,
+};
+enum drm_pvr_ctx_type {
+  DRM_PVR_CTX_TYPE_RENDER = 0,
+  DRM_PVR_CTX_TYPE_COMPUTE,
+  DRM_PVR_CTX_TYPE_TRANSFER_FRAG,
+};
+struct drm_pvr_ioctl_create_context_args {
+  __u32 type;
+  __u32 flags;
+  __s32 priority;
+  __u32 handle;
+  __u64 static_context_state;
+  __u32 static_context_state_len;
+  __u32 vm_context_handle;
+  __u64 callstack_addr;
+};
+struct drm_pvr_ioctl_destroy_context_args {
+  __u32 handle;
+  __u32 _padding_4;
+};
+struct drm_pvr_ioctl_create_free_list_args {
+  __u64 free_list_gpu_addr;
+  __u32 initial_num_pages;
+  __u32 max_num_pages;
+  __u32 grow_num_pages;
+  __u32 grow_threshold;
+  __u32 vm_context_handle;
+  __u32 handle;
+};
+struct drm_pvr_ioctl_destroy_free_list_args {
+  __u32 handle;
+  __u32 _padding_4;
+};
+struct drm_pvr_create_hwrt_geom_data_args {
+  __u64 tpc_dev_addr;
+  __u32 tpc_size;
+  __u32 tpc_stride;
+  __u64 vheap_table_dev_addr;
+  __u64 rtc_dev_addr;
+};
+struct drm_pvr_create_hwrt_rt_data_args {
+  __u64 pm_mlist_dev_addr;
+  __u64 macrotile_array_dev_addr;
+  __u64 region_header_dev_addr;
+};
+#define PVR_DRM_HWRT_FREE_LIST_LOCAL 0
+#define PVR_DRM_HWRT_FREE_LIST_GLOBAL 1U
+struct drm_pvr_ioctl_create_hwrt_dataset_args {
+  struct drm_pvr_create_hwrt_geom_data_args geom_data_args;
+  struct drm_pvr_create_hwrt_rt_data_args rt_data_args[2];
+  __u32 free_list_handles[2];
+  __u32 width;
+  __u32 height;
+  __u32 samples;
+  __u32 layers;
+  __u32 isp_merge_lower_x;
+  __u32 isp_merge_lower_y;
+  __u32 isp_merge_scale_x;
+  __u32 isp_merge_scale_y;
+  __u32 isp_merge_upper_x;
+  __u32 isp_merge_upper_y;
+  __u32 region_header_size;
+  __u32 handle;
+};
+struct drm_pvr_ioctl_destroy_hwrt_dataset_args {
+  __u32 handle;
+  __u32 _padding_4;
+};
+#define DRM_PVR_SYNC_OP_FLAG_HANDLE_TYPE_MASK 0xf
+#define DRM_PVR_SYNC_OP_FLAG_HANDLE_TYPE_SYNCOBJ 0
+#define DRM_PVR_SYNC_OP_FLAG_HANDLE_TYPE_TIMELINE_SYNCOBJ 1
+#define DRM_PVR_SYNC_OP_FLAG_SIGNAL _BITULL(31)
+#define DRM_PVR_SYNC_OP_FLAG_WAIT 0
+#define DRM_PVR_SYNC_OP_FLAGS_MASK (DRM_PVR_SYNC_OP_FLAG_HANDLE_TYPE_MASK | DRM_PVR_SYNC_OP_FLAG_SIGNAL)
+struct drm_pvr_sync_op {
+  __u32 handle;
+  __u32 flags;
+  __u64 value;
+};
+#define DRM_PVR_SUBMIT_JOB_GEOM_CMD_FIRST _BITULL(0)
+#define DRM_PVR_SUBMIT_JOB_GEOM_CMD_LAST _BITULL(1)
+#define DRM_PVR_SUBMIT_JOB_GEOM_CMD_SINGLE_CORE _BITULL(2)
+#define DRM_PVR_SUBMIT_JOB_GEOM_CMD_FLAGS_MASK (DRM_PVR_SUBMIT_JOB_GEOM_CMD_FIRST | DRM_PVR_SUBMIT_JOB_GEOM_CMD_LAST | DRM_PVR_SUBMIT_JOB_GEOM_CMD_SINGLE_CORE)
+#define DRM_PVR_SUBMIT_JOB_FRAG_CMD_SINGLE_CORE _BITULL(0)
+#define DRM_PVR_SUBMIT_JOB_FRAG_CMD_DEPTHBUFFER _BITULL(1)
+#define DRM_PVR_SUBMIT_JOB_FRAG_CMD_STENCILBUFFER _BITULL(2)
+#define DRM_PVR_SUBMIT_JOB_FRAG_CMD_PREVENT_CDM_OVERLAP _BITULL(3)
+#define DRM_PVR_SUBMIT_JOB_FRAG_CMD_SCRATCHBUFFER _BITULL(4)
+#define DRM_PVR_SUBMIT_JOB_FRAG_CMD_GET_VIS_RESULTS _BITULL(5)
+#define DRM_PVR_SUBMIT_JOB_FRAG_CMD_PARTIAL_RENDER _BITULL(6)
+#define DRM_PVR_SUBMIT_JOB_FRAG_CMD_DISABLE_PIXELMERGE _BITULL(7)
+#define DRM_PVR_SUBMIT_JOB_FRAG_CMD_FLAGS_MASK (DRM_PVR_SUBMIT_JOB_FRAG_CMD_SINGLE_CORE | DRM_PVR_SUBMIT_JOB_FRAG_CMD_DEPTHBUFFER | DRM_PVR_SUBMIT_JOB_FRAG_CMD_STENCILBUFFER | DRM_PVR_SUBMIT_JOB_FRAG_CMD_PREVENT_CDM_OVERLAP | DRM_PVR_SUBMIT_JOB_FRAG_CMD_SCRATCHBUFFER | DRM_PVR_SUBMIT_JOB_FRAG_CMD_GET_VIS_RESULTS | DRM_PVR_SUBMIT_JOB_FRAG_CMD_PARTIAL_RENDER | DRM_PVR_SUBMIT_JOB_FRAG_CMD_DISABLE_PIXELMERGE)
+#define DRM_PVR_SUBMIT_JOB_COMPUTE_CMD_PREVENT_ALL_OVERLAP _BITULL(0)
+#define DRM_PVR_SUBMIT_JOB_COMPUTE_CMD_SINGLE_CORE _BITULL(1)
+#define DRM_PVR_SUBMIT_JOB_COMPUTE_CMD_FLAGS_MASK (DRM_PVR_SUBMIT_JOB_COMPUTE_CMD_PREVENT_ALL_OVERLAP | DRM_PVR_SUBMIT_JOB_COMPUTE_CMD_SINGLE_CORE)
+#define DRM_PVR_SUBMIT_JOB_TRANSFER_CMD_SINGLE_CORE _BITULL(0)
+#define DRM_PVR_SUBMIT_JOB_TRANSFER_CMD_FLAGS_MASK DRM_PVR_SUBMIT_JOB_TRANSFER_CMD_SINGLE_CORE
+enum drm_pvr_job_type {
+  DRM_PVR_JOB_TYPE_GEOMETRY = 0,
+  DRM_PVR_JOB_TYPE_FRAGMENT,
+  DRM_PVR_JOB_TYPE_COMPUTE,
+  DRM_PVR_JOB_TYPE_TRANSFER_FRAG,
+};
+struct drm_pvr_hwrt_data_ref {
+  __u32 set_handle;
+  __u32 data_index;
+};
+struct drm_pvr_job {
+  __u32 type;
+  __u32 context_handle;
+  __u32 flags;
+  __u32 cmd_stream_len;
+  __u64 cmd_stream;
+  struct drm_pvr_obj_array sync_ops;
+  struct drm_pvr_hwrt_data_ref hwrt;
+};
+struct drm_pvr_ioctl_submit_jobs_args {
+  struct drm_pvr_obj_array jobs;
+};
+#ifdef __cplusplus
+}
+#endif
+#endif
diff --git a/libc/kernel/uapi/drm/v3d_drm.h b/libc/kernel/uapi/drm/v3d_drm.h
index 594856f..4000fd3 100644
--- a/libc/kernel/uapi/drm/v3d_drm.h
+++ b/libc/kernel/uapi/drm/v3d_drm.h
@@ -21,6 +21,7 @@
 #define DRM_V3D_PERFMON_CREATE 0x08
 #define DRM_V3D_PERFMON_DESTROY 0x09
 #define DRM_V3D_PERFMON_GET_VALUES 0x0a
+#define DRM_V3D_SUBMIT_CPU 0x0b
 #define DRM_IOCTL_V3D_SUBMIT_CL DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_SUBMIT_CL, struct drm_v3d_submit_cl)
 #define DRM_IOCTL_V3D_WAIT_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_WAIT_BO, struct drm_v3d_wait_bo)
 #define DRM_IOCTL_V3D_CREATE_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_CREATE_BO, struct drm_v3d_create_bo)
@@ -32,12 +33,19 @@
 #define DRM_IOCTL_V3D_PERFMON_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_PERFMON_CREATE, struct drm_v3d_perfmon_create)
 #define DRM_IOCTL_V3D_PERFMON_DESTROY DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_PERFMON_DESTROY, struct drm_v3d_perfmon_destroy)
 #define DRM_IOCTL_V3D_PERFMON_GET_VALUES DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_PERFMON_GET_VALUES, struct drm_v3d_perfmon_get_values)
+#define DRM_IOCTL_V3D_SUBMIT_CPU DRM_IOW(DRM_COMMAND_BASE + DRM_V3D_SUBMIT_CPU, struct drm_v3d_submit_cpu)
 #define DRM_V3D_SUBMIT_CL_FLUSH_CACHE 0x01
 #define DRM_V3D_SUBMIT_EXTENSION 0x02
 struct drm_v3d_extension {
   __u64 next;
   __u32 id;
 #define DRM_V3D_EXT_ID_MULTI_SYNC 0x01
+#define DRM_V3D_EXT_ID_CPU_INDIRECT_CSD 0x02
+#define DRM_V3D_EXT_ID_CPU_TIMESTAMP_QUERY 0x03
+#define DRM_V3D_EXT_ID_CPU_RESET_TIMESTAMP_QUERY 0x04
+#define DRM_V3D_EXT_ID_CPU_COPY_TIMESTAMP_QUERY 0x05
+#define DRM_V3D_EXT_ID_CPU_RESET_PERFORMANCE_QUERY 0x06
+#define DRM_V3D_EXT_ID_CPU_COPY_PERFORMANCE_QUERY 0x07
   __u32 flags;
 };
 struct drm_v3d_sem {
@@ -52,6 +60,7 @@
   V3D_TFU,
   V3D_CSD,
   V3D_CACHE_CLEAN,
+  V3D_CPU,
 };
 struct drm_v3d_multi_sync {
   struct drm_v3d_extension base;
@@ -109,6 +118,7 @@
   DRM_V3D_PARAM_SUPPORTS_CACHE_FLUSH,
   DRM_V3D_PARAM_SUPPORTS_PERFMON,
   DRM_V3D_PARAM_SUPPORTS_MULTISYNC_EXT,
+  DRM_V3D_PARAM_SUPPORTS_CPU_QUEUE,
 };
 struct drm_v3d_get_param {
   __u32 param;
@@ -133,6 +143,10 @@
   __u32 out_sync;
   __u32 flags;
   __u64 extensions;
+  struct {
+    __u32 ioc;
+    __u32 pad;
+  } v71;
 };
 struct drm_v3d_submit_csd {
   __u32 cfg[7];
@@ -146,6 +160,66 @@
   __u32 flags;
   __u32 pad;
 };
+struct drm_v3d_indirect_csd {
+  struct drm_v3d_extension base;
+  struct drm_v3d_submit_csd submit;
+  __u32 indirect;
+  __u32 offset;
+  __u32 wg_size;
+  __u32 wg_uniform_offsets[3];
+};
+struct drm_v3d_timestamp_query {
+  struct drm_v3d_extension base;
+  __u64 offsets;
+  __u64 syncs;
+  __u32 count;
+  __u32 pad;
+};
+struct drm_v3d_reset_timestamp_query {
+  struct drm_v3d_extension base;
+  __u64 syncs;
+  __u32 offset;
+  __u32 count;
+};
+struct drm_v3d_copy_timestamp_query {
+  struct drm_v3d_extension base;
+  __u8 do_64bit;
+  __u8 do_partial;
+  __u8 availability_bit;
+  __u8 pad;
+  __u32 offset;
+  __u32 stride;
+  __u32 count;
+  __u64 offsets;
+  __u64 syncs;
+};
+struct drm_v3d_reset_performance_query {
+  struct drm_v3d_extension base;
+  __u64 syncs;
+  __u32 count;
+  __u32 nperfmons;
+  __u64 kperfmon_ids;
+};
+struct drm_v3d_copy_performance_query {
+  struct drm_v3d_extension base;
+  __u8 do_64bit;
+  __u8 do_partial;
+  __u8 availability_bit;
+  __u8 pad;
+  __u32 offset;
+  __u32 stride;
+  __u32 nperfmons;
+  __u32 ncounters;
+  __u32 count;
+  __u64 syncs;
+  __u64 kperfmon_ids;
+};
+struct drm_v3d_submit_cpu {
+  __u64 bo_handles;
+  __u32 bo_handle_count;
+  __u32 flags;
+  __u64 extensions;
+};
 enum {
   V3D_PERFCNT_FEP_VALID_PRIMTS_NO_PIXELS,
   V3D_PERFCNT_FEP_VALID_PRIMS,
diff --git a/libc/kernel/uapi/drm/virtgpu_drm.h b/libc/kernel/uapi/drm/virtgpu_drm.h
index 6babe2d..d79c7d9 100644
--- a/libc/kernel/uapi/drm/virtgpu_drm.h
+++ b/libc/kernel/uapi/drm/virtgpu_drm.h
@@ -58,6 +58,7 @@
 #define VIRTGPU_PARAM_CROSS_DEVICE 5
 #define VIRTGPU_PARAM_CONTEXT_INIT 6
 #define VIRTGPU_PARAM_SUPPORTED_CAPSET_IDs 7
+#define VIRTGPU_PARAM_EXPLICIT_DEBUG_NAME 8
 struct drm_virtgpu_getparam {
   __u64 param;
   __u64 value;
@@ -140,6 +141,7 @@
 #define VIRTGPU_CONTEXT_PARAM_CAPSET_ID 0x0001
 #define VIRTGPU_CONTEXT_PARAM_NUM_RINGS 0x0002
 #define VIRTGPU_CONTEXT_PARAM_POLL_RINGS_MASK 0x0003
+#define VIRTGPU_CONTEXT_PARAM_DEBUG_NAME 0x0004
 struct drm_virtgpu_context_set_param {
   __u64 param;
   __u64 value;
diff --git a/libc/kernel/uapi/drm/xe_drm.h b/libc/kernel/uapi/drm/xe_drm.h
new file mode 100644
index 0000000..dd0da6f
--- /dev/null
+++ b/libc/kernel/uapi/drm/xe_drm.h
@@ -0,0 +1,308 @@
+/*
+ * This file is auto-generated. Modifications will be lost.
+ *
+ * See https://android.googlesource.com/platform/bionic/+/master/libc/kernel/
+ * for more information.
+ */
+#ifndef _UAPI_XE_DRM_H_
+#define _UAPI_XE_DRM_H_
+#include "drm.h"
+#ifdef __cplusplus
+extern "C" {
+#endif
+#define DRM_XE_DEVICE_QUERY 0x00
+#define DRM_XE_GEM_CREATE 0x01
+#define DRM_XE_GEM_MMAP_OFFSET 0x02
+#define DRM_XE_VM_CREATE 0x03
+#define DRM_XE_VM_DESTROY 0x04
+#define DRM_XE_VM_BIND 0x05
+#define DRM_XE_EXEC_QUEUE_CREATE 0x06
+#define DRM_XE_EXEC_QUEUE_DESTROY 0x07
+#define DRM_XE_EXEC_QUEUE_GET_PROPERTY 0x08
+#define DRM_XE_EXEC 0x09
+#define DRM_XE_WAIT_USER_FENCE 0x0a
+#define DRM_IOCTL_XE_DEVICE_QUERY DRM_IOWR(DRM_COMMAND_BASE + DRM_XE_DEVICE_QUERY, struct drm_xe_device_query)
+#define DRM_IOCTL_XE_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_XE_GEM_CREATE, struct drm_xe_gem_create)
+#define DRM_IOCTL_XE_GEM_MMAP_OFFSET DRM_IOWR(DRM_COMMAND_BASE + DRM_XE_GEM_MMAP_OFFSET, struct drm_xe_gem_mmap_offset)
+#define DRM_IOCTL_XE_VM_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_XE_VM_CREATE, struct drm_xe_vm_create)
+#define DRM_IOCTL_XE_VM_DESTROY DRM_IOW(DRM_COMMAND_BASE + DRM_XE_VM_DESTROY, struct drm_xe_vm_destroy)
+#define DRM_IOCTL_XE_VM_BIND DRM_IOW(DRM_COMMAND_BASE + DRM_XE_VM_BIND, struct drm_xe_vm_bind)
+#define DRM_IOCTL_XE_EXEC_QUEUE_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_XE_EXEC_QUEUE_CREATE, struct drm_xe_exec_queue_create)
+#define DRM_IOCTL_XE_EXEC_QUEUE_DESTROY DRM_IOW(DRM_COMMAND_BASE + DRM_XE_EXEC_QUEUE_DESTROY, struct drm_xe_exec_queue_destroy)
+#define DRM_IOCTL_XE_EXEC_QUEUE_GET_PROPERTY DRM_IOWR(DRM_COMMAND_BASE + DRM_XE_EXEC_QUEUE_GET_PROPERTY, struct drm_xe_exec_queue_get_property)
+#define DRM_IOCTL_XE_EXEC DRM_IOW(DRM_COMMAND_BASE + DRM_XE_EXEC, struct drm_xe_exec)
+#define DRM_IOCTL_XE_WAIT_USER_FENCE DRM_IOWR(DRM_COMMAND_BASE + DRM_XE_WAIT_USER_FENCE, struct drm_xe_wait_user_fence)
+struct drm_xe_user_extension {
+  __u64 next_extension;
+  __u32 name;
+  __u32 pad;
+};
+struct drm_xe_ext_set_property {
+  struct drm_xe_user_extension base;
+  __u32 property;
+  __u32 pad;
+  __u64 value;
+  __u64 reserved[2];
+};
+struct drm_xe_engine_class_instance {
+#define DRM_XE_ENGINE_CLASS_RENDER 0
+#define DRM_XE_ENGINE_CLASS_COPY 1
+#define DRM_XE_ENGINE_CLASS_VIDEO_DECODE 2
+#define DRM_XE_ENGINE_CLASS_VIDEO_ENHANCE 3
+#define DRM_XE_ENGINE_CLASS_COMPUTE 4
+#define DRM_XE_ENGINE_CLASS_VM_BIND 5
+  __u16 engine_class;
+  __u16 engine_instance;
+  __u16 gt_id;
+  __u16 pad;
+};
+struct drm_xe_engine {
+  struct drm_xe_engine_class_instance instance;
+  __u64 reserved[3];
+};
+struct drm_xe_query_engines {
+  __u32 num_engines;
+  __u32 pad;
+  struct drm_xe_engine engines[];
+};
+enum drm_xe_memory_class {
+  DRM_XE_MEM_REGION_CLASS_SYSMEM = 0,
+  DRM_XE_MEM_REGION_CLASS_VRAM
+};
+struct drm_xe_mem_region {
+  __u16 mem_class;
+  __u16 instance;
+  __u32 min_page_size;
+  __u64 total_size;
+  __u64 used;
+  __u64 cpu_visible_size;
+  __u64 cpu_visible_used;
+  __u64 reserved[6];
+};
+struct drm_xe_query_mem_regions {
+  __u32 num_mem_regions;
+  __u32 pad;
+  struct drm_xe_mem_region mem_regions[];
+};
+struct drm_xe_query_config {
+  __u32 num_params;
+  __u32 pad;
+#define DRM_XE_QUERY_CONFIG_REV_AND_DEVICE_ID 0
+#define DRM_XE_QUERY_CONFIG_FLAGS 1
+#define DRM_XE_QUERY_CONFIG_FLAG_HAS_VRAM (1 << 0)
+#define DRM_XE_QUERY_CONFIG_MIN_ALIGNMENT 2
+#define DRM_XE_QUERY_CONFIG_VA_BITS 3
+#define DRM_XE_QUERY_CONFIG_MAX_EXEC_QUEUE_PRIORITY 4
+  __u64 info[];
+};
+struct drm_xe_gt {
+#define DRM_XE_QUERY_GT_TYPE_MAIN 0
+#define DRM_XE_QUERY_GT_TYPE_MEDIA 1
+  __u16 type;
+  __u16 tile_id;
+  __u16 gt_id;
+  __u16 pad[3];
+  __u32 reference_clock;
+  __u64 near_mem_regions;
+  __u64 far_mem_regions;
+  __u64 reserved[8];
+};
+struct drm_xe_query_gt_list {
+  __u32 num_gt;
+  __u32 pad;
+  struct drm_xe_gt gt_list[];
+};
+struct drm_xe_query_topology_mask {
+  __u16 gt_id;
+#define DRM_XE_TOPO_DSS_GEOMETRY (1 << 0)
+#define DRM_XE_TOPO_DSS_COMPUTE (1 << 1)
+#define DRM_XE_TOPO_EU_PER_DSS (1 << 2)
+  __u16 type;
+  __u32 num_bytes;
+  __u8 mask[];
+};
+struct drm_xe_query_engine_cycles {
+  struct drm_xe_engine_class_instance eci;
+  __s32 clockid;
+  __u32 width;
+  __u64 engine_cycles;
+  __u64 cpu_timestamp;
+  __u64 cpu_delta;
+};
+struct drm_xe_query_uc_fw_version {
+#define XE_QUERY_UC_TYPE_GUC_SUBMISSION 0
+  __u16 uc_type;
+  __u16 pad;
+  __u32 branch_ver;
+  __u32 major_ver;
+  __u32 minor_ver;
+  __u32 patch_ver;
+  __u32 pad2;
+  __u64 reserved;
+};
+struct drm_xe_device_query {
+  __u64 extensions;
+#define DRM_XE_DEVICE_QUERY_ENGINES 0
+#define DRM_XE_DEVICE_QUERY_MEM_REGIONS 1
+#define DRM_XE_DEVICE_QUERY_CONFIG 2
+#define DRM_XE_DEVICE_QUERY_GT_LIST 3
+#define DRM_XE_DEVICE_QUERY_HWCONFIG 4
+#define DRM_XE_DEVICE_QUERY_GT_TOPOLOGY 5
+#define DRM_XE_DEVICE_QUERY_ENGINE_CYCLES 6
+#define DRM_XE_DEVICE_QUERY_UC_FW_VERSION 7
+  __u32 query;
+  __u32 size;
+  __u64 data;
+  __u64 reserved[2];
+};
+struct drm_xe_gem_create {
+  __u64 extensions;
+  __u64 size;
+  __u32 placement;
+#define DRM_XE_GEM_CREATE_FLAG_DEFER_BACKING (1 << 0)
+#define DRM_XE_GEM_CREATE_FLAG_SCANOUT (1 << 1)
+#define DRM_XE_GEM_CREATE_FLAG_NEEDS_VISIBLE_VRAM (1 << 2)
+  __u32 flags;
+  __u32 vm_id;
+  __u32 handle;
+#define DRM_XE_GEM_CPU_CACHING_WB 1
+#define DRM_XE_GEM_CPU_CACHING_WC 2
+  __u16 cpu_caching;
+  __u16 pad[3];
+  __u64 reserved[2];
+};
+struct drm_xe_gem_mmap_offset {
+  __u64 extensions;
+  __u32 handle;
+  __u32 flags;
+  __u64 offset;
+  __u64 reserved[2];
+};
+struct drm_xe_vm_create {
+  __u64 extensions;
+#define DRM_XE_VM_CREATE_FLAG_SCRATCH_PAGE (1 << 0)
+#define DRM_XE_VM_CREATE_FLAG_LR_MODE (1 << 1)
+#define DRM_XE_VM_CREATE_FLAG_FAULT_MODE (1 << 2)
+  __u32 flags;
+  __u32 vm_id;
+  __u64 reserved[2];
+};
+struct drm_xe_vm_destroy {
+  __u32 vm_id;
+  __u32 pad;
+  __u64 reserved[2];
+};
+struct drm_xe_vm_bind_op {
+  __u64 extensions;
+  __u32 obj;
+  __u16 pat_index;
+  __u16 pad;
+  union {
+    __u64 obj_offset;
+    __u64 userptr;
+  };
+  __u64 range;
+  __u64 addr;
+#define DRM_XE_VM_BIND_OP_MAP 0x0
+#define DRM_XE_VM_BIND_OP_UNMAP 0x1
+#define DRM_XE_VM_BIND_OP_MAP_USERPTR 0x2
+#define DRM_XE_VM_BIND_OP_UNMAP_ALL 0x3
+#define DRM_XE_VM_BIND_OP_PREFETCH 0x4
+  __u32 op;
+#define DRM_XE_VM_BIND_FLAG_NULL (1 << 2)
+#define DRM_XE_VM_BIND_FLAG_DUMPABLE (1 << 3)
+  __u32 flags;
+  __u32 prefetch_mem_region_instance;
+  __u32 pad2;
+  __u64 reserved[3];
+};
+struct drm_xe_vm_bind {
+  __u64 extensions;
+  __u32 vm_id;
+  __u32 exec_queue_id;
+  __u32 pad;
+  __u32 num_binds;
+  union {
+    struct drm_xe_vm_bind_op bind;
+    __u64 vector_of_binds;
+  };
+  __u32 pad2;
+  __u32 num_syncs;
+  __u64 syncs;
+  __u64 reserved[2];
+};
+struct drm_xe_exec_queue_create {
+#define DRM_XE_EXEC_QUEUE_EXTENSION_SET_PROPERTY 0
+#define DRM_XE_EXEC_QUEUE_SET_PROPERTY_PRIORITY 0
+#define DRM_XE_EXEC_QUEUE_SET_PROPERTY_TIMESLICE 1
+  __u64 extensions;
+  __u16 width;
+  __u16 num_placements;
+  __u32 vm_id;
+  __u32 flags;
+  __u32 exec_queue_id;
+  __u64 instances;
+  __u64 reserved[2];
+};
+struct drm_xe_exec_queue_destroy {
+  __u32 exec_queue_id;
+  __u32 pad;
+  __u64 reserved[2];
+};
+struct drm_xe_exec_queue_get_property {
+  __u64 extensions;
+  __u32 exec_queue_id;
+#define DRM_XE_EXEC_QUEUE_GET_PROPERTY_BAN 0
+  __u32 property;
+  __u64 value;
+  __u64 reserved[2];
+};
+struct drm_xe_sync {
+  __u64 extensions;
+#define DRM_XE_SYNC_TYPE_SYNCOBJ 0x0
+#define DRM_XE_SYNC_TYPE_TIMELINE_SYNCOBJ 0x1
+#define DRM_XE_SYNC_TYPE_USER_FENCE 0x2
+  __u32 type;
+#define DRM_XE_SYNC_FLAG_SIGNAL (1 << 0)
+  __u32 flags;
+  union {
+    __u32 handle;
+    __u64 addr;
+  };
+  __u64 timeline_value;
+  __u64 reserved[2];
+};
+struct drm_xe_exec {
+  __u64 extensions;
+  __u32 exec_queue_id;
+  __u32 num_syncs;
+  __u64 syncs;
+  __u64 address;
+  __u16 num_batch_buffer;
+  __u16 pad[3];
+  __u64 reserved[2];
+};
+struct drm_xe_wait_user_fence {
+  __u64 extensions;
+  __u64 addr;
+#define DRM_XE_UFENCE_WAIT_OP_EQ 0x0
+#define DRM_XE_UFENCE_WAIT_OP_NEQ 0x1
+#define DRM_XE_UFENCE_WAIT_OP_GT 0x2
+#define DRM_XE_UFENCE_WAIT_OP_GTE 0x3
+#define DRM_XE_UFENCE_WAIT_OP_LT 0x4
+#define DRM_XE_UFENCE_WAIT_OP_LTE 0x5
+  __u16 op;
+#define DRM_XE_UFENCE_WAIT_FLAG_ABSTIME (1 << 0)
+  __u16 flags;
+  __u32 pad;
+  __u64 value;
+  __u64 mask;
+  __s64 timeout;
+  __u32 exec_queue_id;
+  __u32 pad2;
+  __u64 reserved[2];
+};
+#ifdef __cplusplus
+}
+#endif
+#endif
diff --git a/libc/kernel/uapi/linux/android/binder.h b/libc/kernel/uapi/linux/android/binder.h
index 1abb3a3..6e64ebc 100644
--- a/libc/kernel/uapi/linux/android/binder.h
+++ b/libc/kernel/uapi/linux/android/binder.h
@@ -120,20 +120,22 @@
   __u32 command;
   __s32 param;
 };
-#define BINDER_WRITE_READ _IOWR('b', 1, struct binder_write_read)
-#define BINDER_SET_IDLE_TIMEOUT _IOW('b', 3, __s64)
-#define BINDER_SET_MAX_THREADS _IOW('b', 5, __u32)
-#define BINDER_SET_IDLE_PRIORITY _IOW('b', 6, __s32)
-#define BINDER_SET_CONTEXT_MGR _IOW('b', 7, __s32)
-#define BINDER_THREAD_EXIT _IOW('b', 8, __s32)
-#define BINDER_VERSION _IOWR('b', 9, struct binder_version)
-#define BINDER_GET_NODE_DEBUG_INFO _IOWR('b', 11, struct binder_node_debug_info)
-#define BINDER_GET_NODE_INFO_FOR_REF _IOWR('b', 12, struct binder_node_info_for_ref)
-#define BINDER_SET_CONTEXT_MGR_EXT _IOW('b', 13, struct flat_binder_object)
-#define BINDER_FREEZE _IOW('b', 14, struct binder_freeze_info)
-#define BINDER_GET_FROZEN_INFO _IOWR('b', 15, struct binder_frozen_status_info)
-#define BINDER_ENABLE_ONEWAY_SPAM_DETECTION _IOW('b', 16, __u32)
-#define BINDER_GET_EXTENDED_ERROR _IOWR('b', 17, struct binder_extended_error)
+enum {
+  BINDER_WRITE_READ = _IOWR('b', 1, struct binder_write_read),
+  BINDER_SET_IDLE_TIMEOUT = _IOW('b', 3, __s64),
+  BINDER_SET_MAX_THREADS = _IOW('b', 5, __u32),
+  BINDER_SET_IDLE_PRIORITY = _IOW('b', 6, __s32),
+  BINDER_SET_CONTEXT_MGR = _IOW('b', 7, __s32),
+  BINDER_THREAD_EXIT = _IOW('b', 8, __s32),
+  BINDER_VERSION = _IOWR('b', 9, struct binder_version),
+  BINDER_GET_NODE_DEBUG_INFO = _IOWR('b', 11, struct binder_node_debug_info),
+  BINDER_GET_NODE_INFO_FOR_REF = _IOWR('b', 12, struct binder_node_info_for_ref),
+  BINDER_SET_CONTEXT_MGR_EXT = _IOW('b', 13, struct flat_binder_object),
+  BINDER_FREEZE = _IOW('b', 14, struct binder_freeze_info),
+  BINDER_GET_FROZEN_INFO = _IOWR('b', 15, struct binder_frozen_status_info),
+  BINDER_ENABLE_ONEWAY_SPAM_DETECTION = _IOW('b', 16, __u32),
+  BINDER_GET_EXTENDED_ERROR = _IOWR('b', 17, struct binder_extended_error),
+};
 enum transaction_flags {
   TF_ONE_WAY = 0x01,
   TF_ROOT_OBJECT = 0x04,
diff --git a/libc/kernel/uapi/linux/auxvec.h b/libc/kernel/uapi/linux/auxvec.h
index ce02287..6dbdc75 100644
--- a/libc/kernel/uapi/linux/auxvec.h
+++ b/libc/kernel/uapi/linux/auxvec.h
@@ -31,6 +31,8 @@
 #define AT_HWCAP2 26
 #define AT_RSEQ_FEATURE_SIZE 27
 #define AT_RSEQ_ALIGN 28
+#define AT_HWCAP3 29
+#define AT_HWCAP4 30
 #define AT_EXECFN 31
 #ifndef AT_MINSIGSTKSZ
 #define AT_MINSIGSTKSZ 51
diff --git a/libc/kernel/uapi/linux/batadv_packet.h b/libc/kernel/uapi/linux/batadv_packet.h
index eb72d63..83e5e71 100644
--- a/libc/kernel/uapi/linux/batadv_packet.h
+++ b/libc/kernel/uapi/linux/batadv_packet.h
@@ -51,6 +51,7 @@
   BATADV_MCAST_WANT_ALL_IPV6 = 1UL << 2,
   BATADV_MCAST_WANT_NO_RTR4 = 1UL << 3,
   BATADV_MCAST_WANT_NO_RTR6 = 1UL << 4,
+  BATADV_MCAST_HAVE_MC_PTYPE_CAPA = 1UL << 5,
 };
 #define BATADV_TT_DATA_TYPE_MASK 0x0F
 enum batadv_tt_data_flags {
@@ -76,6 +77,7 @@
   BATADV_TVLV_TT = 0x04,
   BATADV_TVLV_ROAM = 0x05,
   BATADV_TVLV_MCAST = 0x06,
+  BATADV_TVLV_MCAST_TRACKER = 0x07,
 };
 #pragma pack(2)
 struct batadv_bla_claim_dst {
@@ -208,6 +210,13 @@
   __be32 seqno;
   __u8 orig[ETH_ALEN];
 };
+struct batadv_mcast_packet {
+  __u8 packet_type;
+  __u8 version;
+  __u8 ttl;
+  __u8 reserved;
+  __be16 tvlv_len;
+};
 struct batadv_coded_packet {
   __u8 packet_type;
   __u8 version;
@@ -267,5 +276,8 @@
   __u8 flags;
   __u8 reserved[3];
 };
+struct batadv_tvlv_mcast_tracker {
+  __be16 num_dests;
+};
 #pragma pack()
 #endif
diff --git a/libc/kernel/uapi/linux/bits.h b/libc/kernel/uapi/linux/bits.h
new file mode 100644
index 0000000..d747e24
--- /dev/null
+++ b/libc/kernel/uapi/linux/bits.h
@@ -0,0 +1,11 @@
+/*
+ * This file is auto-generated. Modifications will be lost.
+ *
+ * See https://android.googlesource.com/platform/bionic/+/master/libc/kernel/
+ * for more information.
+ */
+#ifndef _UAPI_LINUX_BITS_H
+#define _UAPI_LINUX_BITS_H
+#define __GENMASK(h,l) (((~_UL(0)) - (_UL(1) << (l)) + 1) & (~_UL(0) >> (__BITS_PER_LONG - 1 - (h))))
+#define __GENMASK_ULL(h,l) (((~_ULL(0)) - (_ULL(1) << (l)) + 1) & (~_ULL(0) >> (__BITS_PER_LONG_LONG - 1 - (h))))
+#endif
diff --git a/libc/kernel/uapi/linux/bpf.h b/libc/kernel/uapi/linux/bpf.h
index 25e8ad7..0e9e883 100644
--- a/libc/kernel/uapi/linux/bpf.h
+++ b/libc/kernel/uapi/linux/bpf.h
@@ -28,11 +28,15 @@
 #define BPF_JSGE 0x70
 #define BPF_JSLT 0xc0
 #define BPF_JSLE 0xd0
+#define BPF_JCOND 0xe0
 #define BPF_CALL 0x80
 #define BPF_EXIT 0x90
 #define BPF_FETCH 0x01
 #define BPF_XCHG (0xe0 | BPF_FETCH)
 #define BPF_CMPXCHG (0xf0 | BPF_FETCH)
+enum bpf_cond_pseudo_jmp {
+  BPF_MAY_GOTO = 0,
+};
 enum {
   BPF_REG_0 = 0,
   BPF_REG_1,
@@ -59,6 +63,16 @@
   __u32 prefixlen;
   __u8 data[0];
 };
+struct bpf_lpm_trie_key_hdr {
+  __u32 prefixlen;
+};
+struct bpf_lpm_trie_key_u8 {
+  union {
+    struct bpf_lpm_trie_key_hdr hdr;
+    __u32 prefixlen;
+  };
+  __u8 data[];
+};
 struct bpf_cgroup_storage_key {
   __u64 cgroup_inode_id;
   __u32 attach_type;
@@ -123,6 +137,8 @@
   BPF_ITER_CREATE,
   BPF_LINK_DETACH,
   BPF_PROG_BIND_MAP,
+  BPF_TOKEN_CREATE,
+  __MAX_BPF_CMD,
 };
 enum bpf_map_type {
   BPF_MAP_TYPE_UNSPEC,
@@ -160,6 +176,8 @@
   BPF_MAP_TYPE_BLOOM_FILTER,
   BPF_MAP_TYPE_USER_RINGBUF,
   BPF_MAP_TYPE_CGRP_STORAGE,
+  BPF_MAP_TYPE_ARENA,
+  __MAX_BPF_MAP_TYPE
 };
 enum bpf_prog_type {
   BPF_PROG_TYPE_UNSPEC,
@@ -195,6 +213,7 @@
   BPF_PROG_TYPE_SK_LOOKUP,
   BPF_PROG_TYPE_SYSCALL,
   BPF_PROG_TYPE_NETFILTER,
+  __MAX_BPF_PROG_TYPE
 };
 enum bpf_attach_type {
   BPF_CGROUP_INET_INGRESS,
@@ -271,8 +290,9 @@
   BPF_LINK_TYPE_TCX = 11,
   BPF_LINK_TYPE_UPROBE_MULTI = 12,
   BPF_LINK_TYPE_NETKIT = 13,
-  MAX_BPF_LINK_TYPE,
+  __MAX_BPF_LINK_TYPE,
 };
+#define MAX_BPF_LINK_TYPE __MAX_BPF_LINK_TYPE
 enum bpf_perf_event_type {
   BPF_PERF_EVENT_UNSPEC = 0,
   BPF_PERF_EVENT_UPROBE = 1,
@@ -296,6 +316,7 @@
 #define BPF_F_SLEEPABLE (1U << 4)
 #define BPF_F_XDP_HAS_FRAGS (1U << 5)
 #define BPF_F_XDP_DEV_BOUND_ONLY (1U << 6)
+#define BPF_F_TEST_REG_INVARIANTS (1U << 7)
 enum {
   BPF_F_KPROBE_MULTI_RETURN = (1U << 0)
 };
@@ -311,6 +332,9 @@
 #define BPF_PSEUDO_FUNC 4
 #define BPF_PSEUDO_CALL 1
 #define BPF_PSEUDO_KFUNC_CALL 2
+enum bpf_addr_space_cast {
+  BPF_ADDR_SPACE_CAST = 1,
+};
 enum {
   BPF_ANY = 0,
   BPF_NOEXIST = 1,
@@ -333,6 +357,10 @@
   BPF_F_INNER_MAP = (1U << 12),
   BPF_F_LINK = (1U << 13),
   BPF_F_PATH_FD = (1U << 14),
+  BPF_F_VTYPE_BTF_OBJ_FD = (1U << 15),
+  BPF_F_TOKEN_FD = (1U << 16),
+  BPF_F_SEGV_ON_FAULT = (1U << 17),
+  BPF_F_NO_USER_CONV = (1U << 18),
 };
 #define BPF_F_QUERY_EFFECTIVE (1U << 0)
 #define BPF_F_TEST_RUN_ON_CPU (1U << 0)
@@ -371,6 +399,8 @@
     __u32 btf_value_type_id;
     __u32 btf_vmlinux_value_type_id;
     __u64 map_extra;
+    __s32 value_type_btf_obj_fd;
+    __s32 map_token_fd;
   };
   struct {
     __u32 map_fd;
@@ -421,6 +451,7 @@
     __aligned_u64 core_relos;
     __u32 core_relo_rec_size;
     __u32 log_true_size;
+    __s32 prog_token_fd;
   };
   struct {
     __aligned_u64 pathname;
@@ -506,6 +537,8 @@
     __u32 btf_log_size;
     __u32 btf_log_level;
     __u32 btf_log_true_size;
+    __u32 btf_flags;
+    __s32 btf_token_fd;
   };
   struct {
     __u32 pid;
@@ -607,6 +640,10 @@
     __u32 map_fd;
     __u32 flags;
   } prog_bind_map;
+  struct {
+    __u32 flags;
+    __u32 bpffs_fd;
+  } token_create;
 } __attribute__((aligned(8)));
 #define ___BPF_FUNC_MAPPER(FN,ctx...) FN(unspec, 0, ##ctx) FN(map_lookup_elem, 1, ##ctx) FN(map_update_elem, 2, ##ctx) FN(map_delete_elem, 3, ##ctx) FN(probe_read, 4, ##ctx) FN(ktime_get_ns, 5, ##ctx) FN(trace_printk, 6, ##ctx) FN(get_prandom_u32, 7, ##ctx) FN(get_smp_processor_id, 8, ##ctx) FN(skb_store_bytes, 9, ##ctx) FN(l3_csum_replace, 10, ##ctx) FN(l4_csum_replace, 11, ##ctx) FN(tail_call, 12, ##ctx) FN(clone_redirect, 13, ##ctx) FN(get_current_pid_tgid, 14, ##ctx) FN(get_current_uid_gid, 15, ##ctx) FN(get_current_comm, 16, ##ctx) FN(get_cgroup_classid, 17, ##ctx) FN(skb_vlan_push, 18, ##ctx) FN(skb_vlan_pop, 19, ##ctx) FN(skb_get_tunnel_key, 20, ##ctx) FN(skb_set_tunnel_key, 21, ##ctx) FN(perf_event_read, 22, ##ctx) FN(redirect, 23, ##ctx) FN(get_route_realm, 24, ##ctx) FN(perf_event_output, 25, ##ctx) FN(skb_load_bytes, 26, ##ctx) FN(get_stackid, 27, ##ctx) FN(csum_diff, 28, ##ctx) FN(skb_get_tunnel_opt, 29, ##ctx) FN(skb_set_tunnel_opt, 30, ##ctx) FN(skb_change_proto, 31, ##ctx) FN(skb_change_type, 32, ##ctx) FN(skb_under_cgroup, 33, ##ctx) FN(get_hash_recalc, 34, ##ctx) FN(get_current_task, 35, ##ctx) FN(probe_write_user, 36, ##ctx) FN(current_task_under_cgroup, 37, ##ctx) FN(skb_change_tail, 38, ##ctx) FN(skb_pull_data, 39, ##ctx) FN(csum_update, 40, ##ctx) FN(set_hash_invalid, 41, ##ctx) FN(get_numa_node_id, 42, ##ctx) FN(skb_change_head, 43, ##ctx) FN(xdp_adjust_head, 44, ##ctx) FN(probe_read_str, 45, ##ctx) FN(get_socket_cookie, 46, ##ctx) FN(get_socket_uid, 47, ##ctx) FN(set_hash, 48, ##ctx) FN(setsockopt, 49, ##ctx) FN(skb_adjust_room, 50, ##ctx) FN(redirect_map, 51, ##ctx) FN(sk_redirect_map, 52, ##ctx) FN(sock_map_update, 53, ##ctx) FN(xdp_adjust_meta, 54, ##ctx) FN(perf_event_read_value, 55, ##ctx) FN(perf_prog_read_value, 56, ##ctx) FN(getsockopt, 57, ##ctx) FN(override_return, 58, ##ctx) FN(sock_ops_cb_flags_set, 59, ##ctx) FN(msg_redirect_map, 60, ##ctx) FN(msg_apply_bytes, 61, ##ctx) FN(msg_cork_bytes, 62, ##ctx) FN(msg_pull_data, 63, ##ctx) FN(bind, 64, ##ctx) FN(xdp_adjust_tail, 65, ##ctx) FN(skb_get_xfrm_state, 66, ##ctx) FN(get_stack, 67, ##ctx) FN(skb_load_bytes_relative, 68, ##ctx) FN(fib_lookup, 69, ##ctx) FN(sock_hash_update, 70, ##ctx) FN(msg_redirect_hash, 71, ##ctx) FN(sk_redirect_hash, 72, ##ctx) FN(lwt_push_encap, 73, ##ctx) FN(lwt_seg6_store_bytes, 74, ##ctx) FN(lwt_seg6_adjust_srh, 75, ##ctx) FN(lwt_seg6_action, 76, ##ctx) FN(rc_repeat, 77, ##ctx) FN(rc_keydown, 78, ##ctx) FN(skb_cgroup_id, 79, ##ctx) FN(get_current_cgroup_id, 80, ##ctx) FN(get_local_storage, 81, ##ctx) FN(sk_select_reuseport, 82, ##ctx) FN(skb_ancestor_cgroup_id, 83, ##ctx) FN(sk_lookup_tcp, 84, ##ctx) FN(sk_lookup_udp, 85, ##ctx) FN(sk_release, 86, ##ctx) FN(map_push_elem, 87, ##ctx) FN(map_pop_elem, 88, ##ctx) FN(map_peek_elem, 89, ##ctx) FN(msg_push_data, 90, ##ctx) FN(msg_pop_data, 91, ##ctx) FN(rc_pointer_rel, 92, ##ctx) FN(spin_lock, 93, ##ctx) FN(spin_unlock, 94, ##ctx) FN(sk_fullsock, 95, ##ctx) FN(tcp_sock, 96, ##ctx) FN(skb_ecn_set_ce, 97, ##ctx) FN(get_listener_sock, 98, ##ctx) FN(skc_lookup_tcp, 99, ##ctx) FN(tcp_check_syncookie, 100, ##ctx) FN(sysctl_get_name, 101, ##ctx) FN(sysctl_get_current_value, 102, ##ctx) FN(sysctl_get_new_value, 103, ##ctx) FN(sysctl_set_new_value, 104, ##ctx) FN(strtol, 105, ##ctx) FN(strtoul, 106, ##ctx) FN(sk_storage_get, 107, ##ctx) FN(sk_storage_delete, 108, ##ctx) FN(send_signal, 109, ##ctx) FN(tcp_gen_syncookie, 110, ##ctx) FN(skb_output, 111, ##ctx) FN(probe_read_user, 112, ##ctx) FN(probe_read_kernel, 113, ##ctx) FN(probe_read_user_str, 114, ##ctx) FN(probe_read_kernel_str, 115, ##ctx) FN(tcp_send_ack, 116, ##ctx) FN(send_signal_thread, 117, ##ctx) FN(jiffies64, 118, ##ctx) FN(read_branch_records, 119, ##ctx) FN(get_ns_current_pid_tgid, 120, ##ctx) FN(xdp_output, 121, ##ctx) FN(get_netns_cookie, 122, ##ctx) FN(get_current_ancestor_cgroup_id, 123, ##ctx) FN(sk_assign, 124, ##ctx) FN(ktime_get_boot_ns, 125, ##ctx) FN(seq_printf, 126, ##ctx) FN(seq_write, 127, ##ctx) FN(sk_cgroup_id, 128, ##ctx) FN(sk_ancestor_cgroup_id, 129, ##ctx) FN(ringbuf_output, 130, ##ctx) FN(ringbuf_reserve, 131, ##ctx) FN(ringbuf_submit, 132, ##ctx) FN(ringbuf_discard, 133, ##ctx) FN(ringbuf_query, 134, ##ctx) FN(csum_level, 135, ##ctx) FN(skc_to_tcp6_sock, 136, ##ctx) FN(skc_to_tcp_sock, 137, ##ctx) FN(skc_to_tcp_timewait_sock, 138, ##ctx) FN(skc_to_tcp_request_sock, 139, ##ctx) FN(skc_to_udp6_sock, 140, ##ctx) FN(get_task_stack, 141, ##ctx) FN(load_hdr_opt, 142, ##ctx) FN(store_hdr_opt, 143, ##ctx) FN(reserve_hdr_opt, 144, ##ctx) FN(inode_storage_get, 145, ##ctx) FN(inode_storage_delete, 146, ##ctx) FN(d_path, 147, ##ctx) FN(copy_from_user, 148, ##ctx) FN(snprintf_btf, 149, ##ctx) FN(seq_printf_btf, 150, ##ctx) FN(skb_cgroup_classid, 151, ##ctx) FN(redirect_neigh, 152, ##ctx) FN(per_cpu_ptr, 153, ##ctx) FN(this_cpu_ptr, 154, ##ctx) FN(redirect_peer, 155, ##ctx) FN(task_storage_get, 156, ##ctx) FN(task_storage_delete, 157, ##ctx) FN(get_current_task_btf, 158, ##ctx) FN(bprm_opts_set, 159, ##ctx) FN(ktime_get_coarse_ns, 160, ##ctx) FN(ima_inode_hash, 161, ##ctx) FN(sock_from_file, 162, ##ctx) FN(check_mtu, 163, ##ctx) FN(for_each_map_elem, 164, ##ctx) FN(snprintf, 165, ##ctx) FN(sys_bpf, 166, ##ctx) FN(btf_find_by_name_kind, 167, ##ctx) FN(sys_close, 168, ##ctx) FN(timer_init, 169, ##ctx) FN(timer_set_callback, 170, ##ctx) FN(timer_start, 171, ##ctx) FN(timer_cancel, 172, ##ctx) FN(get_func_ip, 173, ##ctx) FN(get_attach_cookie, 174, ##ctx) FN(task_pt_regs, 175, ##ctx) FN(get_branch_snapshot, 176, ##ctx) FN(trace_vprintk, 177, ##ctx) FN(skc_to_unix_sock, 178, ##ctx) FN(kallsyms_lookup_name, 179, ##ctx) FN(find_vma, 180, ##ctx) FN(loop, 181, ##ctx) FN(strncmp, 182, ##ctx) FN(get_func_arg, 183, ##ctx) FN(get_func_ret, 184, ##ctx) FN(get_func_arg_cnt, 185, ##ctx) FN(get_retval, 186, ##ctx) FN(set_retval, 187, ##ctx) FN(xdp_get_buff_len, 188, ##ctx) FN(xdp_load_bytes, 189, ##ctx) FN(xdp_store_bytes, 190, ##ctx) FN(copy_from_user_task, 191, ##ctx) FN(skb_set_tstamp, 192, ##ctx) FN(ima_file_hash, 193, ##ctx) FN(kptr_xchg, 194, ##ctx) FN(map_lookup_percpu_elem, 195, ##ctx) FN(skc_to_mptcp_sock, 196, ##ctx) FN(dynptr_from_mem, 197, ##ctx) FN(ringbuf_reserve_dynptr, 198, ##ctx) FN(ringbuf_submit_dynptr, 199, ##ctx) FN(ringbuf_discard_dynptr, 200, ##ctx) FN(dynptr_read, 201, ##ctx) FN(dynptr_write, 202, ##ctx) FN(dynptr_data, 203, ##ctx) FN(tcp_raw_gen_syncookie_ipv4, 204, ##ctx) FN(tcp_raw_gen_syncookie_ipv6, 205, ##ctx) FN(tcp_raw_check_syncookie_ipv4, 206, ##ctx) FN(tcp_raw_check_syncookie_ipv6, 207, ##ctx) FN(ktime_get_tai_ns, 208, ##ctx) FN(user_ringbuf_drain, 209, ##ctx) FN(cgrp_storage_get, 210, ##ctx) FN(cgrp_storage_delete, 211, ##ctx)
 #define __BPF_FUNC_MAPPER_APPLY(name,value,FN) FN(name),
@@ -992,7 +1029,7 @@
   __u32 btf_id;
   __u32 btf_key_type_id;
   __u32 btf_value_type_id;
-  __u32 : 32;
+  __u32 btf_vmlinux_id;
   __u64 map_extra;
 } __attribute__((aligned(8)));
 struct bpf_btf_info {
@@ -1061,8 +1098,19 @@
       __u32 count;
       __u32 flags;
       __u64 missed;
+      __aligned_u64 cookies;
     } kprobe_multi;
     struct {
+      __aligned_u64 path;
+      __aligned_u64 offsets;
+      __aligned_u64 ref_ctr_offsets;
+      __aligned_u64 cookies;
+      __u32 path_size;
+      __u32 count;
+      __u32 flags;
+      __u32 pid;
+    } uprobe_multi;
+    struct {
       __u32 type;
       __u32 : 32;
       union {
@@ -1070,6 +1118,7 @@
           __aligned_u64 file_name;
           __u32 name_len;
           __u32 offset;
+          __u64 cookie;
         } uprobe;
         struct {
           __aligned_u64 func_name;
@@ -1077,14 +1126,19 @@
           __u32 offset;
           __u64 addr;
           __u64 missed;
+          __u64 cookie;
         } kprobe;
         struct {
           __aligned_u64 tp_name;
           __u32 name_len;
+          __u32 : 32;
+          __u64 cookie;
         } tracepoint;
         struct {
           __u64 config;
           __u32 type;
+          __u32 : 32;
+          __u64 cookie;
         } event;
       };
     } perf_event;
@@ -1198,6 +1252,7 @@
   BPF_TCP_LISTEN,
   BPF_TCP_CLOSING,
   BPF_TCP_NEW_SYN_RECV,
+  BPF_TCP_BOUND_INACTIVE,
   BPF_TCP_MAX_STATES
 };
 enum {
@@ -1358,34 +1413,25 @@
   __u32 val;
 };
 struct bpf_timer {
-  __u64 : 64;
-  __u64 : 64;
+  __u64 __opaque[2];
 } __attribute__((aligned(8)));
 struct bpf_dynptr {
-  __u64 : 64;
-  __u64 : 64;
+  __u64 __opaque[2];
 } __attribute__((aligned(8)));
 struct bpf_list_head {
-  __u64 : 64;
-  __u64 : 64;
+  __u64 __opaque[2];
 } __attribute__((aligned(8)));
 struct bpf_list_node {
-  __u64 : 64;
-  __u64 : 64;
-  __u64 : 64;
+  __u64 __opaque[3];
 } __attribute__((aligned(8)));
 struct bpf_rb_root {
-  __u64 : 64;
-  __u64 : 64;
+  __u64 __opaque[2];
 } __attribute__((aligned(8)));
 struct bpf_rb_node {
-  __u64 : 64;
-  __u64 : 64;
-  __u64 : 64;
-  __u64 : 64;
+  __u64 __opaque[4];
 } __attribute__((aligned(8)));
 struct bpf_refcount {
-  __u32 : 32;
+  __u32 __opaque[1];
 } __attribute__((aligned(4)));
 struct bpf_sysctl {
   __u32 write;
diff --git a/libc/kernel/uapi/linux/bpfilter.h b/libc/kernel/uapi/linux/bpfilter.h
deleted file mode 100644
index a0833a3..0000000
--- a/libc/kernel/uapi/linux/bpfilter.h
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * This file is auto-generated. Modifications will be lost.
- *
- * See https://android.googlesource.com/platform/bionic/+/master/libc/kernel/
- * for more information.
- */
-#ifndef _UAPI_LINUX_BPFILTER_H
-#define _UAPI_LINUX_BPFILTER_H
-#include <linux/if.h>
-enum {
-  BPFILTER_IPT_SO_SET_REPLACE = 64,
-  BPFILTER_IPT_SO_SET_ADD_COUNTERS = 65,
-  BPFILTER_IPT_SET_MAX,
-};
-enum {
-  BPFILTER_IPT_SO_GET_INFO = 64,
-  BPFILTER_IPT_SO_GET_ENTRIES = 65,
-  BPFILTER_IPT_SO_GET_REVISION_MATCH = 66,
-  BPFILTER_IPT_SO_GET_REVISION_TARGET = 67,
-  BPFILTER_IPT_GET_MAX,
-};
-#endif
diff --git a/libc/kernel/uapi/linux/btrfs.h b/libc/kernel/uapi/linux/btrfs.h
index 27564f8..a3ebc4f 100644
--- a/libc/kernel/uapi/linux/btrfs.h
+++ b/libc/kernel/uapi/linux/btrfs.h
@@ -45,6 +45,7 @@
   __u64 rsv_excl;
 };
 #define BTRFS_QGROUP_INHERIT_SET_LIMITS (1ULL << 0)
+#define BTRFS_QGROUP_INHERIT_FLAGS_SUPP (BTRFS_QGROUP_INHERIT_SET_LIMITS)
 struct btrfs_qgroup_inherit {
   __u64 flags;
   __u64 num_qgroups;
@@ -310,6 +311,7 @@
 };
 #define BTRFS_DEFRAG_RANGE_COMPRESS 1
 #define BTRFS_DEFRAG_RANGE_START_IO 2
+#define BTRFS_DEFRAG_RANGE_FLAGS_SUPP (BTRFS_DEFRAG_RANGE_COMPRESS | BTRFS_DEFRAG_RANGE_START_IO)
 struct btrfs_ioctl_defrag_range_args {
   __u64 start;
   __u64 len;
diff --git a/libc/kernel/uapi/linux/can.h b/libc/kernel/uapi/linux/can.h
index 0fc98ae..a913d73 100644
--- a/libc/kernel/uapi/linux/can.h
+++ b/libc/kernel/uapi/linux/can.h
@@ -55,6 +55,9 @@
 };
 #define CANXL_XLF 0x80
 #define CANXL_SEC 0x01
+#define CANXL_VCID_OFFSET 16
+#define CANXL_VCID_VAL_MASK 0xFFUL
+#define CANXL_VCID_MASK (CANXL_VCID_VAL_MASK << CANXL_VCID_OFFSET)
 struct canxl_frame {
   canid_t prio;
   __u8 flags;
diff --git a/libc/kernel/uapi/linux/can/isotp.h b/libc/kernel/uapi/linux/can/isotp.h
index cff12d6..407f6ca 100644
--- a/libc/kernel/uapi/linux/can/isotp.h
+++ b/libc/kernel/uapi/linux/can/isotp.h
@@ -45,6 +45,7 @@
 #define CAN_ISOTP_WAIT_TX_DONE 0x0400
 #define CAN_ISOTP_SF_BROADCAST 0x0800
 #define CAN_ISOTP_CF_BROADCAST 0x1000
+#define CAN_ISOTP_DYN_FC_PARMS 0x2000
 #define CAN_ISOTP_DEFAULT_FLAGS 0
 #define CAN_ISOTP_DEFAULT_EXT_ADDRESS 0x00
 #define CAN_ISOTP_DEFAULT_PAD_CONTENT 0xCC
diff --git a/libc/kernel/uapi/linux/can/raw.h b/libc/kernel/uapi/linux/can/raw.h
index 940a852..8e47899 100644
--- a/libc/kernel/uapi/linux/can/raw.h
+++ b/libc/kernel/uapi/linux/can/raw.h
@@ -20,5 +20,15 @@
   CAN_RAW_FD_FRAMES,
   CAN_RAW_JOIN_FILTERS,
   CAN_RAW_XL_FRAMES,
+  CAN_RAW_XL_VCID_OPTS,
 };
+struct can_raw_vcid_options {
+  __u8 flags;
+  __u8 tx_vcid;
+  __u8 rx_vcid;
+  __u8 rx_vcid_mask;
+};
+#define CAN_RAW_XL_VCID_TX_SET 0x01
+#define CAN_RAW_XL_VCID_TX_PASS 0x02
+#define CAN_RAW_XL_VCID_RX_FILTER 0x04
 #endif
diff --git a/libc/kernel/uapi/linux/cxl_mem.h b/libc/kernel/uapi/linux/cxl_mem.h
index a008826..942e817 100644
--- a/libc/kernel/uapi/linux/cxl_mem.h
+++ b/libc/kernel/uapi/linux/cxl_mem.h
@@ -9,7 +9,7 @@
 #include <linux/types.h>
 #define CXL_MEM_QUERY_COMMANDS _IOR(0xCE, 1, struct cxl_mem_query_commands)
 #define CXL_MEM_SEND_COMMAND _IOWR(0xCE, 2, struct cxl_send_command)
-#define CXL_CMDS ___C(INVALID, "Invalid Command"), ___C(IDENTIFY, "Identify Command"), ___C(RAW, "Raw device command"), ___C(GET_SUPPORTED_LOGS, "Get Supported Logs"), ___C(GET_FW_INFO, "Get FW Info"), ___C(GET_PARTITION_INFO, "Get Partition Information"), ___C(GET_LSA, "Get Label Storage Area"), ___C(GET_HEALTH_INFO, "Get Health Info"), ___C(GET_LOG, "Get Log"), ___C(SET_PARTITION_INFO, "Set Partition Information"), ___C(SET_LSA, "Set Label Storage Area"), ___C(GET_ALERT_CONFIG, "Get Alert Configuration"), ___C(SET_ALERT_CONFIG, "Set Alert Configuration"), ___C(GET_SHUTDOWN_STATE, "Get Shutdown State"), ___C(SET_SHUTDOWN_STATE, "Set Shutdown State"), ___DEPRECATED(GET_POISON, "Get Poison List"), ___DEPRECATED(INJECT_POISON, "Inject Poison"), ___DEPRECATED(CLEAR_POISON, "Clear Poison"), ___C(GET_SCAN_MEDIA_CAPS, "Get Scan Media Capabilities"), ___DEPRECATED(SCAN_MEDIA, "Scan Media"), ___DEPRECATED(GET_SCAN_MEDIA, "Get Scan Media Results"), ___C(MAX, "invalid / last command")
+#define CXL_CMDS ___C(INVALID, "Invalid Command"), ___C(IDENTIFY, "Identify Command"), ___C(RAW, "Raw device command"), ___C(GET_SUPPORTED_LOGS, "Get Supported Logs"), ___C(GET_FW_INFO, "Get FW Info"), ___C(GET_PARTITION_INFO, "Get Partition Information"), ___C(GET_LSA, "Get Label Storage Area"), ___C(GET_HEALTH_INFO, "Get Health Info"), ___C(GET_LOG, "Get Log"), ___C(SET_PARTITION_INFO, "Set Partition Information"), ___C(SET_LSA, "Set Label Storage Area"), ___C(GET_ALERT_CONFIG, "Get Alert Configuration"), ___C(SET_ALERT_CONFIG, "Set Alert Configuration"), ___C(GET_SHUTDOWN_STATE, "Get Shutdown State"), ___C(SET_SHUTDOWN_STATE, "Set Shutdown State"), ___DEPRECATED(GET_POISON, "Get Poison List"), ___DEPRECATED(INJECT_POISON, "Inject Poison"), ___DEPRECATED(CLEAR_POISON, "Clear Poison"), ___C(GET_SCAN_MEDIA_CAPS, "Get Scan Media Capabilities"), ___DEPRECATED(SCAN_MEDIA, "Scan Media"), ___DEPRECATED(GET_SCAN_MEDIA, "Get Scan Media Results"), ___C(GET_TIMESTAMP, "Get Timestamp"), ___C(MAX, "invalid / last command")
 #define ___C(a,b) CXL_MEM_COMMAND_ID_ ##a
 #define ___DEPRECATED(a,b) CXL_MEM_DEPRECATED_ID_ ##a
 enum {
diff --git a/libc/kernel/uapi/linux/devlink.h b/libc/kernel/uapi/linux/devlink.h
index bc44a70..968d6be 100644
--- a/libc/kernel/uapi/linux/devlink.h
+++ b/libc/kernel/uapi/linux/devlink.h
@@ -97,6 +97,7 @@
   DEVLINK_CMD_LINECARD_DEL,
   DEVLINK_CMD_SELFTESTS_GET,
   DEVLINK_CMD_SELFTESTS_RUN,
+  DEVLINK_CMD_NOTIFY_FILTER_SET,
   __DEVLINK_CMD_MAX,
   DEVLINK_CMD_MAX = __DEVLINK_CMD_MAX - 1
 };
diff --git a/libc/kernel/uapi/linux/dpll.h b/libc/kernel/uapi/linux/dpll.h
index 9b5f37d..dd692f6 100644
--- a/libc/kernel/uapi/linux/dpll.h
+++ b/libc/kernel/uapi/linux/dpll.h
@@ -22,6 +22,14 @@
   __DPLL_LOCK_STATUS_MAX,
   DPLL_LOCK_STATUS_MAX = (__DPLL_LOCK_STATUS_MAX - 1)
 };
+enum dpll_lock_status_error {
+  DPLL_LOCK_STATUS_ERROR_NONE = 1,
+  DPLL_LOCK_STATUS_ERROR_UNDEFINED,
+  DPLL_LOCK_STATUS_ERROR_MEDIA_DOWN,
+  DPLL_LOCK_STATUS_ERROR_FRACTIONAL_FREQUENCY_OFFSET_TOO_HIGH,
+  __DPLL_LOCK_STATUS_ERROR_MAX,
+  DPLL_LOCK_STATUS_ERROR_MAX = (__DPLL_LOCK_STATUS_ERROR_MAX - 1)
+};
 #define DPLL_TEMP_DIVIDER 1000
 enum dpll_type {
   DPLL_TYPE_PPS = 1,
@@ -71,6 +79,7 @@
   DPLL_A_LOCK_STATUS,
   DPLL_A_TEMP,
   DPLL_A_TYPE,
+  DPLL_A_LOCK_STATUS_ERROR,
   __DPLL_A_MAX,
   DPLL_A_MAX = (__DPLL_A_MAX - 1)
 };
@@ -98,6 +107,7 @@
   DPLL_A_PIN_PHASE_ADJUST_MAX,
   DPLL_A_PIN_PHASE_ADJUST,
   DPLL_A_PIN_PHASE_OFFSET,
+  DPLL_A_PIN_FRACTIONAL_FREQUENCY_OFFSET,
   __DPLL_A_PIN_MAX,
   DPLL_A_PIN_MAX = (__DPLL_A_PIN_MAX - 1)
 };
diff --git a/libc/kernel/uapi/linux/elf.h b/libc/kernel/uapi/linux/elf.h
index c545fdf..f1cf522 100644
--- a/libc/kernel/uapi/linux/elf.h
+++ b/libc/kernel/uapi/linux/elf.h
@@ -358,6 +358,7 @@
 #define NT_ARM_SSVE 0x40b
 #define NT_ARM_ZA 0x40c
 #define NT_ARM_ZT 0x40d
+#define NT_ARM_FPMR 0x40e
 #define NT_ARC_V2 0x600
 #define NT_VMCOREDD 0x700
 #define NT_MIPS_DSP 0x800
diff --git a/libc/kernel/uapi/linux/ethtool.h b/libc/kernel/uapi/linux/ethtool.h
index 0d166af..48b4544 100644
--- a/libc/kernel/uapi/linux/ethtool.h
+++ b/libc/kernel/uapi/linux/ethtool.h
@@ -433,7 +433,8 @@
   __u32 indir_size;
   __u32 key_size;
   __u8 hfunc;
-  __u8 rsvd8[3];
+  __u8 input_xfrm;
+  __u8 rsvd8[2];
   __u32 rsvd32;
   __u32 rss_config[];
 };
@@ -857,6 +858,8 @@
 #define WAKE_MAGICSECURE (1 << 6)
 #define WAKE_FILTER (1 << 7)
 #define WOL_MODE_COUNT 8
+#define RXH_XFRM_SYM_XOR (1 << 0)
+#define RXH_XFRM_NO_CHANGE 0xff
 #define TCP_V4_FLOW 0x01
 #define UDP_V4_FLOW 0x02
 #define SCTP_V4_FLOW 0x03
@@ -875,6 +878,18 @@
 #define IPV4_FLOW 0x10
 #define IPV6_FLOW 0x11
 #define ETHER_FLOW 0x12
+#define GTPU_V4_FLOW 0x13
+#define GTPU_V6_FLOW 0x14
+#define GTPC_V4_FLOW 0x15
+#define GTPC_V6_FLOW 0x16
+#define GTPC_TEID_V4_FLOW 0x17
+#define GTPC_TEID_V6_FLOW 0x18
+#define GTPU_EH_V4_FLOW 0x19
+#define GTPU_EH_V6_FLOW 0x1a
+#define GTPU_UL_V4_FLOW 0x1b
+#define GTPU_UL_V6_FLOW 0x1c
+#define GTPU_DL_V4_FLOW 0x1d
+#define GTPU_DL_V6_FLOW 0x1e
 #define FLOW_EXT 0x80000000
 #define FLOW_MAC_EXT 0x40000000
 #define FLOW_RSS 0x20000000
@@ -885,6 +900,7 @@
 #define RXH_IP_DST (1 << 5)
 #define RXH_L4_B_0_1 (1 << 6)
 #define RXH_L4_B_2_3 (1 << 7)
+#define RXH_GTP_TEID (1 << 8)
 #define RXH_DISCARD (1 << 31)
 #define RX_CLS_FLOW_DISC 0xffffffffffffffffULL
 #define RX_CLS_FLOW_WAKE 0xfffffffffffffffeULL
diff --git a/libc/kernel/uapi/linux/ethtool_netlink.h b/libc/kernel/uapi/linux/ethtool_netlink.h
index c5012d2..e4fc40e 100644
--- a/libc/kernel/uapi/linux/ethtool_netlink.h
+++ b/libc/kernel/uapi/linux/ethtool_netlink.h
@@ -638,6 +638,7 @@
   ETHTOOL_A_RSS_HFUNC,
   ETHTOOL_A_RSS_INDIR,
   ETHTOOL_A_RSS_HKEY,
+  ETHTOOL_A_RSS_INPUT_XFRM,
   __ETHTOOL_A_RSS_CNT,
   ETHTOOL_A_RSS_MAX = (__ETHTOOL_A_RSS_CNT - 1),
 };
diff --git a/libc/kernel/uapi/linux/eventpoll.h b/libc/kernel/uapi/linux/eventpoll.h
index 3468658..7704cb3 100644
--- a/libc/kernel/uapi/linux/eventpoll.h
+++ b/libc/kernel/uapi/linux/eventpoll.h
@@ -35,4 +35,13 @@
 #else
 #define EPOLL_PACKED
 #endif
+struct epoll_params {
+  __u32 busy_poll_usecs;
+  __u16 busy_poll_budget;
+  __u8 prefer_busy_poll;
+  __u8 __pad;
+};
+#define EPOLL_IOC_TYPE 0x8A
+#define EPIOCSPARAMS _IOW(EPOLL_IOC_TYPE, 0x01, struct epoll_params)
+#define EPIOCGPARAMS _IOR(EPOLL_IOC_TYPE, 0x02, struct epoll_params)
 #endif
diff --git a/libc/kernel/uapi/linux/fb.h b/libc/kernel/uapi/linux/fb.h
index fda2b05..82f35e7 100644
--- a/libc/kernel/uapi/linux/fb.h
+++ b/libc/kernel/uapi/linux/fb.h
@@ -8,6 +8,7 @@
 #define _UAPI_LINUX_FB_H
 #include <linux/types.h>
 #include <linux/i2c.h>
+#include <linux/vesa.h>
 #define FB_MAX 32
 #define FBIOGET_VSCREENINFO 0x4600
 #define FBIOPUT_VSCREENINFO 0x4601
@@ -235,10 +236,6 @@
   __u32 console;
   __u32 framebuffer;
 };
-#define VESA_NO_BLANKING 0
-#define VESA_VSYNC_SUSPEND 1
-#define VESA_HSYNC_SUSPEND 2
-#define VESA_POWERDOWN 3
 enum {
   FB_BLANK_UNBLANK = VESA_NO_BLANKING,
   FB_BLANK_NORMAL = VESA_NO_BLANKING + 1,
diff --git a/libc/kernel/uapi/linux/fs.h b/libc/kernel/uapi/linux/fs.h
index 9288653..38a2d9e 100644
--- a/libc/kernel/uapi/linux/fs.h
+++ b/libc/kernel/uapi/linux/fs.h
@@ -36,6 +36,14 @@
   __u64 len;
   __u64 minlen;
 };
+struct fsuuid2 {
+  __u8 len;
+  __u8 uuid[16];
+};
+struct fs_sysfs_path {
+  __u8 len;
+  __u8 name[128];
+};
 #define FILE_DEDUPE_RANGE_SAME 0
 #define FILE_DEDUPE_RANGE_DIFFERS 1
 struct file_dedupe_range_info {
@@ -141,6 +149,8 @@
 #define FS_IOC_FSSETXATTR _IOW('X', 32, struct fsxattr)
 #define FS_IOC_GETFSLABEL _IOR(0x94, 49, char[FSLABEL_MAX])
 #define FS_IOC_SETFSLABEL _IOW(0x94, 50, char[FSLABEL_MAX])
+#define FS_IOC_GETFSUUID _IOR(0x15, 0, struct fsuuid2)
+#define FS_IOC_GETFSSYSFSPATH _IOR(0x15, 1, struct fs_sysfs_path)
 #define FS_SECRM_FL 0x00000001
 #define FS_UNRM_FL 0x00000002
 #define FS_COMPR_FL 0x00000004
@@ -183,7 +193,8 @@
 #define RWF_SYNC (( __kernel_rwf_t) 0x00000004)
 #define RWF_NOWAIT (( __kernel_rwf_t) 0x00000008)
 #define RWF_APPEND (( __kernel_rwf_t) 0x00000010)
-#define RWF_SUPPORTED (RWF_HIPRI | RWF_DSYNC | RWF_SYNC | RWF_NOWAIT | RWF_APPEND)
+#define RWF_NOAPPEND (( __kernel_rwf_t) 0x00000020)
+#define RWF_SUPPORTED (RWF_HIPRI | RWF_DSYNC | RWF_SYNC | RWF_NOWAIT | RWF_APPEND | RWF_NOAPPEND)
 #define PAGEMAP_SCAN _IOWR('f', 16, struct pm_scan_arg)
 #define PAGE_IS_WPALLOWED (1 << 0)
 #define PAGE_IS_WRITTEN (1 << 1)
@@ -192,6 +203,7 @@
 #define PAGE_IS_SWAPPED (1 << 4)
 #define PAGE_IS_PFNZERO (1 << 5)
 #define PAGE_IS_HUGE (1 << 6)
+#define PAGE_IS_SOFT_DIRTY (1 << 7)
 struct page_region {
   __u64 start;
   __u64 end;
diff --git a/libc/kernel/uapi/linux/fuse.h b/libc/kernel/uapi/linux/fuse.h
index 8a7d37f..4ac2d2c 100644
--- a/libc/kernel/uapi/linux/fuse.h
+++ b/libc/kernel/uapi/linux/fuse.h
@@ -8,7 +8,7 @@
 #define _LINUX_FUSE_H
 #include <stdint.h>
 #define FUSE_KERNEL_VERSION 7
-#define FUSE_KERNEL_MINOR_VERSION 39
+#define FUSE_KERNEL_MINOR_VERSION 40
 #define FUSE_ROOT_ID 1
 struct fuse_attr {
   uint64_t ino;
@@ -93,6 +93,7 @@
 #define FOPEN_STREAM (1 << 4)
 #define FOPEN_NOFLUSH (1 << 5)
 #define FOPEN_PARALLEL_DIRECT_WRITES (1 << 6)
+#define FOPEN_PASSTHROUGH (1 << 7)
 #define FUSE_ASYNC_READ (1 << 0)
 #define FUSE_POSIX_LOCKS (1 << 1)
 #define FUSE_FILE_OPS (1 << 2)
@@ -130,12 +131,10 @@
 #define FUSE_CREATE_SUPP_GROUP (1ULL << 34)
 #define FUSE_HAS_EXPIRE_ONLY (1ULL << 35)
 #define FUSE_DIRECT_IO_ALLOW_MMAP (1ULL << 36)
+#define FUSE_PASSTHROUGH (1ULL << 37)
+#define FUSE_NO_EXPORT_SUPPORT (1ULL << 38)
+#define FUSE_HAS_RESEND (1ULL << 39)
 #define FUSE_DIRECT_IO_RELAX FUSE_DIRECT_IO_ALLOW_MMAP
-#if FUSE_KERNEL_VERSION > 7 || FUSE_KERNEL_VERSION == 7 && FUSE_KERNEL_MINOR_VERSION >= 36
-#define FUSE_PASSTHROUGH (1ULL << 63)
-#else
-#define FUSE_PASSTHROUGH (1 << 31)
-#endif
 #define CUSE_UNRESTRICTED_IOCTL (1 << 0)
 #define FUSE_RELEASE_FLUSH (1 << 0)
 #define FUSE_RELEASE_FLOCK_UNLOCK (1 << 1)
@@ -215,7 +214,6 @@
   FUSE_SYNCFS = 50,
   FUSE_TMPFILE = 51,
   FUSE_STATX = 52,
-  FUSE_CANONICAL_PATH = 2016,
   CUSE_INIT = 4096,
   CUSE_INIT_BSWAP_RESERVED = 1048576,
   FUSE_INIT_BSWAP_RESERVED = 436207616,
@@ -227,6 +225,7 @@
   FUSE_NOTIFY_STORE = 4,
   FUSE_NOTIFY_RETRIEVE = 5,
   FUSE_NOTIFY_DELETE = 6,
+  FUSE_NOTIFY_RESEND = 7,
   FUSE_NOTIFY_CODE_MAX,
 };
 #define FUSE_MIN_READ_BUFFER 8192
@@ -330,7 +329,7 @@
 struct fuse_open_out {
   uint64_t fh;
   uint32_t open_flags;
-  uint32_t passthrough_fh;
+  int32_t backing_id;
 };
 struct fuse_release_in {
   uint64_t fh;
@@ -427,7 +426,8 @@
   uint16_t max_pages;
   uint16_t map_alignment;
   uint32_t flags2;
-  uint32_t unused[7];
+  uint32_t max_stack_depth;
+  uint32_t unused[6];
 };
 #define CUSE_INIT_INFO_MAX 4096
 struct cuse_init_in {
@@ -496,6 +496,7 @@
   uint32_t mode;
   uint32_t padding;
 };
+#define FUSE_UNIQUE_RESEND (1ULL << 63)
 struct fuse_in_header {
   uint32_t len;
   uint32_t opcode;
@@ -566,9 +567,15 @@
   uint64_t dummy3;
   uint64_t dummy4;
 };
+struct fuse_backing_map {
+  int32_t fd;
+  uint32_t flags;
+  uint64_t padding;
+};
 #define FUSE_DEV_IOC_MAGIC 229
 #define FUSE_DEV_IOC_CLONE _IOR(FUSE_DEV_IOC_MAGIC, 0, uint32_t)
-#define FUSE_DEV_IOC_PASSTHROUGH_OPEN _IOW(FUSE_DEV_IOC_MAGIC, 126, uint32_t)
+#define FUSE_DEV_IOC_BACKING_OPEN _IOW(FUSE_DEV_IOC_MAGIC, 1, struct fuse_backing_map)
+#define FUSE_DEV_IOC_BACKING_CLOSE _IOW(FUSE_DEV_IOC_MAGIC, 2, uint32_t)
 struct fuse_lseek_in {
   uint64_t fh;
   uint64_t offset;
diff --git a/libc/kernel/uapi/linux/if_bridge.h b/libc/kernel/uapi/linux/if_bridge.h
index a738876..97c0fb6 100644
--- a/libc/kernel/uapi/linux/if_bridge.h
+++ b/libc/kernel/uapi/linux/if_bridge.h
@@ -587,6 +587,7 @@
   MDBE_ATTR_VNI,
   MDBE_ATTR_IFINDEX,
   MDBE_ATTR_SRC_VNI,
+  MDBE_ATTR_STATE_MASK,
   __MDBE_ATTR_MAX,
 };
 #define MDBE_ATTR_MAX (__MDBE_ATTR_MAX - 1)
diff --git a/libc/kernel/uapi/linux/if_link.h b/libc/kernel/uapi/linux/if_link.h
index 54b751e..397adfe 100644
--- a/libc/kernel/uapi/linux/if_link.h
+++ b/libc/kernel/uapi/linux/if_link.h
@@ -536,6 +536,7 @@
   IFLA_VXLAN_DF,
   IFLA_VXLAN_VNIFILTER,
   IFLA_VXLAN_LOCALBYPASS,
+  IFLA_VXLAN_LABEL_POLICY,
   __IFLA_VXLAN_MAX
 };
 #define IFLA_VXLAN_MAX (__IFLA_VXLAN_MAX - 1)
@@ -550,6 +551,12 @@
   __VXLAN_DF_END,
   VXLAN_DF_MAX = __VXLAN_DF_END - 1,
 };
+enum ifla_vxlan_label_policy {
+  VXLAN_LABEL_FIXED = 0,
+  VXLAN_LABEL_INHERIT = 1,
+  __VXLAN_LABEL_END,
+  VXLAN_LABEL_MAX = __VXLAN_LABEL_END - 1,
+};
 enum {
   IFLA_GENEVE_UNSPEC,
   IFLA_GENEVE_ID,
@@ -639,6 +646,7 @@
   IFLA_BOND_AD_LACP_ACTIVE,
   IFLA_BOND_MISSED_MAX,
   IFLA_BOND_NS_IP6_TARGET,
+  IFLA_BOND_COUPLED_CONTROL,
   __IFLA_BOND_MAX,
 };
 #define IFLA_BOND_MAX (__IFLA_BOND_MAX - 1)
diff --git a/libc/kernel/uapi/linux/if_xdp.h b/libc/kernel/uapi/linux/if_xdp.h
index 02a014a..b7eec87 100644
--- a/libc/kernel/uapi/linux/if_xdp.h
+++ b/libc/kernel/uapi/linux/if_xdp.h
@@ -13,6 +13,7 @@
 #define XDP_USE_NEED_WAKEUP (1 << 3)
 #define XDP_USE_SG (1 << 4)
 #define XDP_UMEM_UNALIGNED_CHUNK_FLAG (1 << 0)
+#define XDP_UMEM_TX_SW_CSUM (1 << 1)
 struct sockaddr_xdp {
   __u16 sxdp_family;
   __u16 sxdp_flags;
@@ -47,6 +48,7 @@
   __u32 chunk_size;
   __u32 headroom;
   __u32 flags;
+  __u32 tx_metadata_len;
 };
 struct xdp_statistics {
   __u64 rx_dropped;
@@ -66,10 +68,25 @@
 #define XDP_UMEM_PGOFF_COMPLETION_RING 0x180000000ULL
 #define XSK_UNALIGNED_BUF_OFFSET_SHIFT 48
 #define XSK_UNALIGNED_BUF_ADDR_MASK ((1ULL << XSK_UNALIGNED_BUF_OFFSET_SHIFT) - 1)
+#define XDP_TXMD_FLAGS_TIMESTAMP (1 << 0)
+#define XDP_TXMD_FLAGS_CHECKSUM (1 << 1)
+struct xsk_tx_metadata {
+  __u64 flags;
+  union {
+    struct {
+      __u16 csum_start;
+      __u16 csum_offset;
+    } request;
+    struct {
+      __u64 tx_timestamp;
+    } completion;
+  };
+};
 struct xdp_desc {
   __u64 addr;
   __u32 len;
   __u32 options;
 };
 #define XDP_PKT_CONTD (1 << 0)
+#define XDP_TX_METADATA (1 << 1)
 #endif
diff --git a/libc/kernel/uapi/linux/iio/types.h b/libc/kernel/uapi/linux/iio/types.h
index 4e4324a..f40cb95 100644
--- a/libc/kernel/uapi/linux/iio/types.h
+++ b/libc/kernel/uapi/linux/iio/types.h
@@ -99,6 +99,8 @@
   IIO_MOD_PITCH,
   IIO_MOD_YAW,
   IIO_MOD_ROLL,
+  IIO_MOD_LIGHT_UVA,
+  IIO_MOD_LIGHT_UVB,
 };
 enum iio_event_type {
   IIO_EV_TYPE_THRESH,
diff --git a/libc/kernel/uapi/linux/input-event-codes.h b/libc/kernel/uapi/linux/input-event-codes.h
index 96f285b..0fe5a14 100644
--- a/libc/kernel/uapi/linux/input-event-codes.h
+++ b/libc/kernel/uapi/linux/input-event-codes.h
@@ -528,6 +528,7 @@
 #define BTN_DPAD_RIGHT 0x223
 #define KEY_ALS_TOGGLE 0x230
 #define KEY_ROTATE_LOCK_TOGGLE 0x231
+#define KEY_REFRESH_RATE_TOGGLE 0x232
 #define KEY_BUTTONCONFIG 0x240
 #define KEY_TASKMANAGER 0x241
 #define KEY_JOURNAL 0x242
diff --git a/libc/kernel/uapi/linux/io_uring.h b/libc/kernel/uapi/linux/io_uring.h
index 57c6405..10936f2 100644
--- a/libc/kernel/uapi/linux/io_uring.h
+++ b/libc/kernel/uapi/linux/io_uring.h
@@ -58,6 +58,7 @@
     __u32 uring_cmd_flags;
     __u32 waitid_flags;
     __u32 futex_flags;
+    __u32 install_fd_flags;
   };
   __u64 user_data;
   union {
@@ -172,6 +173,8 @@
   IORING_OP_FUTEX_WAIT,
   IORING_OP_FUTEX_WAKE,
   IORING_OP_FUTEX_WAITV,
+  IORING_OP_FIXED_FD_INSTALL,
+  IORING_OP_FTRUNCATE,
   IORING_OP_LAST,
 };
 #define IORING_URING_CMD_FIXED (1U << 0)
@@ -209,6 +212,7 @@
 };
 #define IORING_MSG_RING_CQE_SKIP (1U << 0)
 #define IORING_MSG_RING_FLAGS_PASS (1U << 1)
+#define IORING_FIXED_FD_NO_CLOEXEC (1U << 0)
 struct io_uring_cqe {
   __u64 user_data;
   __s32 res;
@@ -312,6 +316,9 @@
   IORING_UNREGISTER_PBUF_RING = 23,
   IORING_REGISTER_SYNC_CANCEL = 24,
   IORING_REGISTER_FILE_ALLOC_RANGE = 25,
+  IORING_REGISTER_PBUF_STATUS = 26,
+  IORING_REGISTER_NAPI = 27,
+  IORING_UNREGISTER_NAPI = 28,
   IORING_REGISTER_LAST,
   IORING_REGISTER_USE_REGISTERED_RING = 1U << 31
 };
@@ -397,6 +404,17 @@
   __u16 flags;
   __u64 resv[3];
 };
+struct io_uring_buf_status {
+  __u32 buf_group;
+  __u32 head;
+  __u32 resv[8];
+};
+struct io_uring_napi {
+  __u32 busy_poll_to;
+  __u8 prefer_busy_poll;
+  __u8 pad[3];
+  __u64 resv;
+};
 enum {
   IORING_RESTRICTION_REGISTER_OP = 0,
   IORING_RESTRICTION_SQE_OP = 1,
diff --git a/libc/kernel/uapi/linux/ioam6_genl.h b/libc/kernel/uapi/linux/ioam6_genl.h
index 8201bb5..216cd31 100644
--- a/libc/kernel/uapi/linux/ioam6_genl.h
+++ b/libc/kernel/uapi/linux/ioam6_genl.h
@@ -33,4 +33,18 @@
   __IOAM6_CMD_MAX,
 };
 #define IOAM6_CMD_MAX (__IOAM6_CMD_MAX - 1)
+#define IOAM6_GENL_EV_GRP_NAME "ioam6_events"
+enum ioam6_event_type {
+  IOAM6_EVENT_UNSPEC,
+  IOAM6_EVENT_TRACE,
+};
+enum ioam6_event_attr {
+  IOAM6_EVENT_ATTR_UNSPEC,
+  IOAM6_EVENT_ATTR_TRACE_NAMESPACE,
+  IOAM6_EVENT_ATTR_TRACE_NODELEN,
+  IOAM6_EVENT_ATTR_TRACE_TYPE,
+  IOAM6_EVENT_ATTR_TRACE_DATA,
+  __IOAM6_EVENT_ATTR_MAX
+};
+#define IOAM6_EVENT_ATTR_MAX (__IOAM6_EVENT_ATTR_MAX - 1)
 #endif
diff --git a/libc/kernel/uapi/linux/iommufd.h b/libc/kernel/uapi/linux/iommufd.h
index d19a471..2570628 100644
--- a/libc/kernel/uapi/linux/iommufd.h
+++ b/libc/kernel/uapi/linux/iommufd.h
@@ -24,6 +24,7 @@
   IOMMUFD_CMD_GET_HW_INFO,
   IOMMUFD_CMD_HWPT_SET_DIRTY_TRACKING,
   IOMMUFD_CMD_HWPT_GET_DIRTY_BITMAP,
+  IOMMUFD_CMD_HWPT_INVALIDATE,
 };
 struct iommu_destroy {
   __u32 size;
@@ -200,4 +201,26 @@
   __aligned_u64 data;
 };
 #define IOMMU_HWPT_GET_DIRTY_BITMAP _IO(IOMMUFD_TYPE, IOMMUFD_CMD_HWPT_GET_DIRTY_BITMAP)
+enum iommu_hwpt_invalidate_data_type {
+  IOMMU_HWPT_INVALIDATE_DATA_VTD_S1,
+};
+enum iommu_hwpt_vtd_s1_invalidate_flags {
+  IOMMU_VTD_INV_FLAGS_LEAF = 1 << 0,
+};
+struct iommu_hwpt_vtd_s1_invalidate {
+  __aligned_u64 addr;
+  __aligned_u64 npages;
+  __u32 flags;
+  __u32 __reserved;
+};
+struct iommu_hwpt_invalidate {
+  __u32 size;
+  __u32 hwpt_id;
+  __aligned_u64 data_uptr;
+  __u32 data_type;
+  __u32 entry_len;
+  __u32 entry_num;
+  __u32 __reserved;
+};
+#define IOMMU_HWPT_INVALIDATE _IO(IOMMUFD_TYPE, IOMMUFD_CMD_HWPT_INVALIDATE)
 #endif
diff --git a/libc/kernel/uapi/linux/kexec.h b/libc/kernel/uapi/linux/kexec.h
index 53c86f3..c5c8623 100644
--- a/libc/kernel/uapi/linux/kexec.h
+++ b/libc/kernel/uapi/linux/kexec.h
@@ -14,6 +14,7 @@
 #define KEXEC_FILE_UNLOAD 0x00000001
 #define KEXEC_FILE_ON_CRASH 0x00000002
 #define KEXEC_FILE_NO_INITRAMFS 0x00000004
+#define KEXEC_FILE_DEBUG 0x00000008
 #define KEXEC_ARCH_DEFAULT (0 << 16)
 #define KEXEC_ARCH_386 (3 << 16)
 #define KEXEC_ARCH_68K (4 << 16)
diff --git a/libc/kernel/uapi/linux/kfd_ioctl.h b/libc/kernel/uapi/linux/kfd_ioctl.h
index 0dc806f..62c9872 100644
--- a/libc/kernel/uapi/linux/kfd_ioctl.h
+++ b/libc/kernel/uapi/linux/kfd_ioctl.h
@@ -9,7 +9,7 @@
 #include <drm/drm.h>
 #include <linux/ioctl.h>
 #define KFD_IOCTL_MAJOR_VERSION 1
-#define KFD_IOCTL_MINOR_VERSION 14
+#define KFD_IOCTL_MINOR_VERSION 15
 struct kfd_ioctl_get_version_args {
   __u32 major_version;
   __u32 minor_version;
@@ -497,9 +497,12 @@
 #define KFD_EC_MASK_QUEUE (KFD_EC_MASK(EC_QUEUE_WAVE_ABORT) | KFD_EC_MASK(EC_QUEUE_WAVE_TRAP) | KFD_EC_MASK(EC_QUEUE_WAVE_MATH_ERROR) | KFD_EC_MASK(EC_QUEUE_WAVE_ILLEGAL_INSTRUCTION) | KFD_EC_MASK(EC_QUEUE_WAVE_MEMORY_VIOLATION) | KFD_EC_MASK(EC_QUEUE_WAVE_APERTURE_VIOLATION) | KFD_EC_MASK(EC_QUEUE_PACKET_DISPATCH_DIM_INVALID) | KFD_EC_MASK(EC_QUEUE_PACKET_DISPATCH_GROUP_SEGMENT_SIZE_INVALID) | KFD_EC_MASK(EC_QUEUE_PACKET_DISPATCH_CODE_INVALID) | KFD_EC_MASK(EC_QUEUE_PACKET_RESERVED) | KFD_EC_MASK(EC_QUEUE_PACKET_UNSUPPORTED) | KFD_EC_MASK(EC_QUEUE_PACKET_DISPATCH_WORK_GROUP_SIZE_INVALID) | KFD_EC_MASK(EC_QUEUE_PACKET_DISPATCH_REGISTER_INVALID) | KFD_EC_MASK(EC_QUEUE_PACKET_VENDOR_UNSUPPORTED) | KFD_EC_MASK(EC_QUEUE_PREEMPTION_ERROR) | KFD_EC_MASK(EC_QUEUE_NEW))
 #define KFD_EC_MASK_DEVICE (KFD_EC_MASK(EC_DEVICE_QUEUE_DELETE) | KFD_EC_MASK(EC_DEVICE_RAS_ERROR) | KFD_EC_MASK(EC_DEVICE_FATAL_HALT) | KFD_EC_MASK(EC_DEVICE_MEMORY_VIOLATION) | KFD_EC_MASK(EC_DEVICE_NEW))
 #define KFD_EC_MASK_PROCESS (KFD_EC_MASK(EC_PROCESS_RUNTIME) | KFD_EC_MASK(EC_PROCESS_DEVICE_REMOVE))
-#define KFD_DBG_EC_TYPE_IS_QUEUE(ecode) (! ! (KFD_EC_MASK(ecode) & KFD_EC_MASK_QUEUE))
-#define KFD_DBG_EC_TYPE_IS_DEVICE(ecode) (! ! (KFD_EC_MASK(ecode) & KFD_EC_MASK_DEVICE))
-#define KFD_DBG_EC_TYPE_IS_PROCESS(ecode) (! ! (KFD_EC_MASK(ecode) & KFD_EC_MASK_PROCESS))
+#define KFD_EC_MASK_PACKET (KFD_EC_MASK(EC_QUEUE_PACKET_DISPATCH_DIM_INVALID) | KFD_EC_MASK(EC_QUEUE_PACKET_DISPATCH_GROUP_SEGMENT_SIZE_INVALID) | KFD_EC_MASK(EC_QUEUE_PACKET_DISPATCH_CODE_INVALID) | KFD_EC_MASK(EC_QUEUE_PACKET_RESERVED) | KFD_EC_MASK(EC_QUEUE_PACKET_UNSUPPORTED) | KFD_EC_MASK(EC_QUEUE_PACKET_DISPATCH_WORK_GROUP_SIZE_INVALID) | KFD_EC_MASK(EC_QUEUE_PACKET_DISPATCH_REGISTER_INVALID) | KFD_EC_MASK(EC_QUEUE_PACKET_VENDOR_UNSUPPORTED))
+#define KFD_DBG_EC_IS_VALID(ecode) (ecode > EC_NONE && ecode < EC_MAX)
+#define KFD_DBG_EC_TYPE_IS_QUEUE(ecode) (KFD_DBG_EC_IS_VALID(ecode) && ! ! (KFD_EC_MASK(ecode) & KFD_EC_MASK_QUEUE))
+#define KFD_DBG_EC_TYPE_IS_DEVICE(ecode) (KFD_DBG_EC_IS_VALID(ecode) && ! ! (KFD_EC_MASK(ecode) & KFD_EC_MASK_DEVICE))
+#define KFD_DBG_EC_TYPE_IS_PROCESS(ecode) (KFD_DBG_EC_IS_VALID(ecode) && ! ! (KFD_EC_MASK(ecode) & KFD_EC_MASK_PROCESS))
+#define KFD_DBG_EC_TYPE_IS_PACKET(ecode) (KFD_DBG_EC_IS_VALID(ecode) && ! ! (KFD_EC_MASK(ecode) & KFD_EC_MASK_PACKET))
 enum kfd_dbg_runtime_state {
   DEBUG_RUNTIME_STATE_DISABLED = 0,
   DEBUG_RUNTIME_STATE_ENABLED = 1,
diff --git a/libc/kernel/uapi/linux/kvm.h b/libc/kernel/uapi/linux/kvm.h
index 2a89638..ffaf5e6 100644
--- a/libc/kernel/uapi/linux/kvm.h
+++ b/libc/kernel/uapi/linux/kvm.h
@@ -12,59 +12,7 @@
 #include <linux/ioctl.h>
 #include <asm/kvm.h>
 #define KVM_API_VERSION 12
-#define KVM_TRC_SHIFT 16
-#define KVM_TRC_ENTRYEXIT (1 << KVM_TRC_SHIFT)
-#define KVM_TRC_HANDLER (1 << (KVM_TRC_SHIFT + 1))
-#define KVM_TRC_VMENTRY (KVM_TRC_ENTRYEXIT + 0x01)
-#define KVM_TRC_VMEXIT (KVM_TRC_ENTRYEXIT + 0x02)
-#define KVM_TRC_PAGE_FAULT (KVM_TRC_HANDLER + 0x01)
-#define KVM_TRC_HEAD_SIZE 12
-#define KVM_TRC_CYCLE_SIZE 8
-#define KVM_TRC_EXTRA_MAX 7
-#define KVM_TRC_INJ_VIRQ (KVM_TRC_HANDLER + 0x02)
-#define KVM_TRC_REDELIVER_EVT (KVM_TRC_HANDLER + 0x03)
-#define KVM_TRC_PEND_INTR (KVM_TRC_HANDLER + 0x04)
-#define KVM_TRC_IO_READ (KVM_TRC_HANDLER + 0x05)
-#define KVM_TRC_IO_WRITE (KVM_TRC_HANDLER + 0x06)
-#define KVM_TRC_CR_READ (KVM_TRC_HANDLER + 0x07)
-#define KVM_TRC_CR_WRITE (KVM_TRC_HANDLER + 0x08)
-#define KVM_TRC_DR_READ (KVM_TRC_HANDLER + 0x09)
-#define KVM_TRC_DR_WRITE (KVM_TRC_HANDLER + 0x0A)
-#define KVM_TRC_MSR_READ (KVM_TRC_HANDLER + 0x0B)
-#define KVM_TRC_MSR_WRITE (KVM_TRC_HANDLER + 0x0C)
-#define KVM_TRC_CPUID (KVM_TRC_HANDLER + 0x0D)
-#define KVM_TRC_INTR (KVM_TRC_HANDLER + 0x0E)
-#define KVM_TRC_NMI (KVM_TRC_HANDLER + 0x0F)
-#define KVM_TRC_VMMCALL (KVM_TRC_HANDLER + 0x10)
-#define KVM_TRC_HLT (KVM_TRC_HANDLER + 0x11)
-#define KVM_TRC_CLTS (KVM_TRC_HANDLER + 0x12)
-#define KVM_TRC_LMSW (KVM_TRC_HANDLER + 0x13)
-#define KVM_TRC_APIC_ACCESS (KVM_TRC_HANDLER + 0x14)
-#define KVM_TRC_TDP_FAULT (KVM_TRC_HANDLER + 0x15)
-#define KVM_TRC_GTLB_WRITE (KVM_TRC_HANDLER + 0x16)
-#define KVM_TRC_STLB_WRITE (KVM_TRC_HANDLER + 0x17)
-#define KVM_TRC_STLB_INVAL (KVM_TRC_HANDLER + 0x18)
-#define KVM_TRC_PPC_INSTR (KVM_TRC_HANDLER + 0x19)
-struct kvm_user_trace_setup {
-  __u32 buf_size;
-  __u32 buf_nr;
-};
-#define __KVM_DEPRECATED_MAIN_W_0x06 _IOW(KVMIO, 0x06, struct kvm_user_trace_setup)
-#define __KVM_DEPRECATED_MAIN_0x07 _IO(KVMIO, 0x07)
-#define __KVM_DEPRECATED_MAIN_0x08 _IO(KVMIO, 0x08)
-#define __KVM_DEPRECATED_VM_R_0x70 _IOR(KVMIO, 0x70, struct kvm_assigned_irq)
-struct kvm_breakpoint {
-  __u32 enabled;
-  __u32 padding;
-  __u64 address;
-};
-struct kvm_debug_guest {
-  __u32 enabled;
-  __u32 pad;
-  struct kvm_breakpoint breakpoints[4];
-  __u32 singlestep;
-};
-#define __KVM_DEPRECATED_VCPU_W_0x87 _IOW(KVMIO, 0x87, struct kvm_debug_guest)
+#define __KVM_HAVE_GUEST_DEBUG
 struct kvm_userspace_memory_region {
   __u32 slot;
   __u32 flags;
@@ -72,8 +20,20 @@
   __u64 memory_size;
   __u64 userspace_addr;
 };
+struct kvm_userspace_memory_region2 {
+  __u32 slot;
+  __u32 flags;
+  __u64 guest_phys_addr;
+  __u64 memory_size;
+  __u64 userspace_addr;
+  __u64 guest_memfd_offset;
+  __u32 guest_memfd;
+  __u32 pad1;
+  __u64 pad2[14];
+};
 #define KVM_MEM_LOG_DIRTY_PAGES (1UL << 0)
 #define KVM_MEM_READONLY (1UL << 1)
+#define KVM_MEM_GUEST_MEMFD (1UL << 2)
 struct kvm_irq_level {
   union {
     __u32 irq;
@@ -99,24 +59,6 @@
   __u32 pad[15];
 };
 #define KVM_PIT_SPEAKER_DUMMY 1
-struct kvm_s390_skeys {
-  __u64 start_gfn;
-  __u64 count;
-  __u64 skeydata_addr;
-  __u32 flags;
-  __u32 reserved[9];
-};
-#define KVM_S390_CMMA_PEEK (1 << 0)
-struct kvm_s390_cmma_log {
-  __u64 start_gfn;
-  __u32 count;
-  __u32 flags;
-  union {
-    __u64 remaining;
-    __u64 mask;
-  };
-  __u64 values;
-};
 struct kvm_hyperv_exit {
 #define KVM_EXIT_HYPERV_SYNIC 1
 #define KVM_EXIT_HYPERV_HCALL 2
@@ -201,6 +143,7 @@
 #define KVM_EXIT_RISCV_CSR 36
 #define KVM_EXIT_NOTIFY 37
 #define KVM_EXIT_LOONGARCH_IOCSR 38
+#define KVM_EXIT_MEMORY_FAULT 39
 #define KVM_INTERNAL_ERROR_EMULATION 1
 #define KVM_INTERNAL_ERROR_SIMUL_EX 2
 #define KVM_INTERNAL_ERROR_DELIVERY_EV 3
@@ -275,11 +218,6 @@
       __u16 ipa;
       __u32 ipb;
     } s390_sieic;
-#define KVM_S390_RESET_POR 1
-#define KVM_S390_RESET_CLEAR 2
-#define KVM_S390_RESET_SUBSYSTEM 4
-#define KVM_S390_RESET_CPU_INIT 8
-#define KVM_S390_RESET_IPL 16
     __u64 s390_reset_flags;
     struct {
       __u64 trans_exc_code;
@@ -383,6 +321,12 @@
 #define KVM_NOTIFY_CONTEXT_INVALID (1 << 0)
       __u32 flags;
     } notify;
+    struct {
+#define KVM_MEMORY_EXIT_FLAG_PRIVATE (1ULL << 3)
+      __u64 flags;
+      __u64 gpa;
+      __u64 size;
+    } memory_fault;
     char padding[256];
   };
 #define SYNC_REGS_SIZE_BYTES 2048
@@ -423,35 +367,6 @@
   __u8 usermode;
   __u8 pad[5];
 };
-struct kvm_s390_mem_op {
-  __u64 gaddr;
-  __u64 flags;
-  __u32 size;
-  __u32 op;
-  __u64 buf;
-  union {
-    struct {
-      __u8 ar;
-      __u8 key;
-      __u8 pad1[6];
-      __u64 old_addr;
-    };
-    __u32 sida_offset;
-    __u8 reserved[32];
-  };
-};
-#define KVM_S390_MEMOP_LOGICAL_READ 0
-#define KVM_S390_MEMOP_LOGICAL_WRITE 1
-#define KVM_S390_MEMOP_SIDA_READ 2
-#define KVM_S390_MEMOP_SIDA_WRITE 3
-#define KVM_S390_MEMOP_ABSOLUTE_READ 4
-#define KVM_S390_MEMOP_ABSOLUTE_WRITE 5
-#define KVM_S390_MEMOP_ABSOLUTE_CMPXCHG 6
-#define KVM_S390_MEMOP_F_CHECK_ONLY (1ULL << 0)
-#define KVM_S390_MEMOP_F_INJECT_EXCEPTION (1ULL << 1)
-#define KVM_S390_MEMOP_F_SKEY_PROTECTION (1ULL << 2)
-#define KVM_S390_MEMOP_EXTENSION_CAP_BASE (1 << 0)
-#define KVM_S390_MEMOP_EXTENSION_CAP_CMPXCHG (1 << 1)
 struct kvm_interrupt {
   __u32 irq;
 };
@@ -498,104 +413,6 @@
 struct kvm_mp_state {
   __u32 mp_state;
 };
-struct kvm_s390_psw {
-  __u64 mask;
-  __u64 addr;
-};
-#define KVM_S390_SIGP_STOP 0xfffe0000u
-#define KVM_S390_PROGRAM_INT 0xfffe0001u
-#define KVM_S390_SIGP_SET_PREFIX 0xfffe0002u
-#define KVM_S390_RESTART 0xfffe0003u
-#define KVM_S390_INT_PFAULT_INIT 0xfffe0004u
-#define KVM_S390_INT_PFAULT_DONE 0xfffe0005u
-#define KVM_S390_MCHK 0xfffe1000u
-#define KVM_S390_INT_CLOCK_COMP 0xffff1004u
-#define KVM_S390_INT_CPU_TIMER 0xffff1005u
-#define KVM_S390_INT_VIRTIO 0xffff2603u
-#define KVM_S390_INT_SERVICE 0xffff2401u
-#define KVM_S390_INT_EMERGENCY 0xffff1201u
-#define KVM_S390_INT_EXTERNAL_CALL 0xffff1202u
-#define KVM_S390_INT_IO(ai,cssid,ssid,schid) (((schid)) | ((ssid) << 16) | ((cssid) << 18) | ((ai) << 26))
-#define KVM_S390_INT_IO_MIN 0x00000000u
-#define KVM_S390_INT_IO_MAX 0xfffdffffu
-#define KVM_S390_INT_IO_AI_MASK 0x04000000u
-struct kvm_s390_interrupt {
-  __u32 type;
-  __u32 parm;
-  __u64 parm64;
-};
-struct kvm_s390_io_info {
-  __u16 subchannel_id;
-  __u16 subchannel_nr;
-  __u32 io_int_parm;
-  __u32 io_int_word;
-};
-struct kvm_s390_ext_info {
-  __u32 ext_params;
-  __u32 pad;
-  __u64 ext_params2;
-};
-struct kvm_s390_pgm_info {
-  __u64 trans_exc_code;
-  __u64 mon_code;
-  __u64 per_address;
-  __u32 data_exc_code;
-  __u16 code;
-  __u16 mon_class_nr;
-  __u8 per_code;
-  __u8 per_atmid;
-  __u8 exc_access_id;
-  __u8 per_access_id;
-  __u8 op_access_id;
-#define KVM_S390_PGM_FLAGS_ILC_VALID 0x01
-#define KVM_S390_PGM_FLAGS_ILC_0 0x02
-#define KVM_S390_PGM_FLAGS_ILC_1 0x04
-#define KVM_S390_PGM_FLAGS_ILC_MASK 0x06
-#define KVM_S390_PGM_FLAGS_NO_REWIND 0x08
-  __u8 flags;
-  __u8 pad[2];
-};
-struct kvm_s390_prefix_info {
-  __u32 address;
-};
-struct kvm_s390_extcall_info {
-  __u16 code;
-};
-struct kvm_s390_emerg_info {
-  __u16 code;
-};
-#define KVM_S390_STOP_FLAG_STORE_STATUS 0x01
-struct kvm_s390_stop_info {
-  __u32 flags;
-};
-struct kvm_s390_mchk_info {
-  __u64 cr14;
-  __u64 mcic;
-  __u64 failing_storage_address;
-  __u32 ext_damage_code;
-  __u32 pad;
-  __u8 fixed_logout[16];
-};
-struct kvm_s390_irq {
-  __u64 type;
-  union {
-    struct kvm_s390_io_info io;
-    struct kvm_s390_ext_info ext;
-    struct kvm_s390_pgm_info pgm;
-    struct kvm_s390_emerg_info emerg;
-    struct kvm_s390_extcall_info extcall;
-    struct kvm_s390_prefix_info prefix;
-    struct kvm_s390_stop_info stop;
-    struct kvm_s390_mchk_info mchk;
-    char reserved[64];
-  } u;
-};
-struct kvm_s390_irq_state {
-  __u64 buf;
-  __u32 flags;
-  __u32 len;
-  __u32 reserved[4];
-};
 #define KVM_GUESTDBG_ENABLE 0x00000001
 #define KVM_GUESTDBG_SINGLESTEP 0x00000002
 struct kvm_guest_debug {
@@ -635,37 +452,6 @@
   __u64 args[4];
   __u8 pad[64];
 };
-#define KVM_PPC_PVINFO_FLAGS_EV_IDLE (1 << 0)
-struct kvm_ppc_pvinfo {
-  __u32 flags;
-  __u32 hcall[4];
-  __u8 pad[108];
-};
-#define KVM_PPC_PAGE_SIZES_MAX_SZ 8
-struct kvm_ppc_one_page_size {
-  __u32 page_shift;
-  __u32 pte_enc;
-};
-struct kvm_ppc_one_seg_page_size {
-  __u32 page_shift;
-  __u32 slb_enc;
-  struct kvm_ppc_one_page_size enc[KVM_PPC_PAGE_SIZES_MAX_SZ];
-};
-#define KVM_PPC_PAGE_SIZES_REAL 0x00000001
-#define KVM_PPC_1T_SEGMENTS 0x00000002
-#define KVM_PPC_NO_HASH 0x00000004
-struct kvm_ppc_smmu_info {
-  __u64 flags;
-  __u32 slb_size;
-  __u16 data_keys;
-  __u16 instr_keys;
-  struct kvm_ppc_one_seg_page_size sps[KVM_PPC_PAGE_SIZES_MAX_SZ];
-};
-struct kvm_ppc_resize_hpt {
-  __u64 flags;
-  __u32 shift;
-  __u32 pad;
-};
 #define KVMIO 0xAE
 #define KVM_VM_S390_UCONTROL 1
 #define KVM_VM_PPC_HV 1
@@ -683,9 +469,6 @@
 #define KVM_CHECK_EXTENSION _IO(KVMIO, 0x03)
 #define KVM_GET_VCPU_MMAP_SIZE _IO(KVMIO, 0x04)
 #define KVM_GET_SUPPORTED_CPUID _IOWR(KVMIO, 0x05, struct kvm_cpuid2)
-#define KVM_TRACE_ENABLE __KVM_DEPRECATED_MAIN_W_0x06
-#define KVM_TRACE_PAUSE __KVM_DEPRECATED_MAIN_0x07
-#define KVM_TRACE_DISABLE __KVM_DEPRECATED_MAIN_0x08
 #define KVM_GET_EMULATED_CPUID _IOWR(KVMIO, 0x09, struct kvm_cpuid2)
 #define KVM_GET_MSR_FEATURE_INDEX_LIST _IOWR(KVMIO, 0x0a, struct kvm_msr_list)
 #define KVM_CAP_IRQCHIP 0
@@ -707,9 +490,7 @@
 #define KVM_CAP_IOMMU 18
 #define KVM_CAP_DESTROY_MEMORY_REGION_WORKS 21
 #define KVM_CAP_USER_NMI 22
-#ifdef __KVM_HAVE_GUEST_DEBUG
 #define KVM_CAP_SET_GUEST_DEBUG 23
-#endif
 #ifdef __KVM_HAVE_PIT
 #define KVM_CAP_REINJECT_CONTROL 24
 #endif
@@ -933,7 +714,11 @@
 #define KVM_CAP_ARM_EAGER_SPLIT_CHUNK_SIZE 228
 #define KVM_CAP_ARM_SUPPORTED_BLOCK_SIZES 229
 #define KVM_CAP_ARM_SUPPORTED_REG_MASK_RANGES 230
-#ifdef KVM_CAP_IRQ_ROUTING
+#define KVM_CAP_USER_MEMORY2 231
+#define KVM_CAP_MEMORY_FAULT_INFO 232
+#define KVM_CAP_MEMORY_ATTRIBUTES 233
+#define KVM_CAP_GUEST_MEMFD 234
+#define KVM_CAP_VM_TYPES 235
 struct kvm_irq_routing_irqchip {
   __u32 irqchip;
   __u32 pin;
@@ -988,36 +773,6 @@
   __u32 flags;
   struct kvm_irq_routing_entry entries[];
 };
-#endif
-#ifdef KVM_CAP_MCE
-struct kvm_x86_mce {
-  __u64 status;
-  __u64 addr;
-  __u64 misc;
-  __u64 mcg_status;
-  __u8 bank;
-  __u8 pad1[7];
-  __u64 pad2[3];
-};
-#endif
-#ifdef KVM_CAP_XEN_HVM
-#define KVM_XEN_HVM_CONFIG_HYPERCALL_MSR (1 << 0)
-#define KVM_XEN_HVM_CONFIG_INTERCEPT_HCALL (1 << 1)
-#define KVM_XEN_HVM_CONFIG_SHARED_INFO (1 << 2)
-#define KVM_XEN_HVM_CONFIG_RUNSTATE (1 << 3)
-#define KVM_XEN_HVM_CONFIG_EVTCHN_2LEVEL (1 << 4)
-#define KVM_XEN_HVM_CONFIG_EVTCHN_SEND (1 << 5)
-#define KVM_XEN_HVM_CONFIG_RUNSTATE_UPDATE_FLAG (1 << 6)
-struct kvm_xen_hvm_config {
-  __u32 flags;
-  __u32 msr;
-  __u64 blob_addr_32;
-  __u64 blob_addr_64;
-  __u8 blob_size_32;
-  __u8 blob_size_64;
-  __u8 pad2[30];
-};
-#endif
 #define KVM_IRQFD_FLAG_DEASSIGN (1 << 0)
 #define KVM_IRQFD_FLAG_RESAMPLE (1 << 1)
 struct kvm_irqfd {
@@ -1148,11 +903,7 @@
 #define KVM_SET_USER_MEMORY_REGION _IOW(KVMIO, 0x46, struct kvm_userspace_memory_region)
 #define KVM_SET_TSS_ADDR _IO(KVMIO, 0x47)
 #define KVM_SET_IDENTITY_MAP_ADDR _IOW(KVMIO, 0x48, __u64)
-struct kvm_s390_ucas_mapping {
-  __u64 user_addr;
-  __u64 vcpu_addr;
-  __u64 length;
-};
+#define KVM_SET_USER_MEMORY_REGION2 _IOW(KVMIO, 0x49, struct kvm_userspace_memory_region2)
 #define KVM_S390_UCAS_MAP _IOW(KVMIO, 0x50, struct kvm_s390_ucas_mapping)
 #define KVM_S390_UCAS_UNMAP _IOW(KVMIO, 0x51, struct kvm_s390_ucas_mapping)
 #define KVM_S390_VCPU_FAULT _IOW(KVMIO, 0x52, unsigned long)
@@ -1166,15 +917,8 @@
 #define KVM_IRQ_LINE_STATUS _IOWR(KVMIO, 0x67, struct kvm_irq_level)
 #define KVM_REGISTER_COALESCED_MMIO _IOW(KVMIO, 0x67, struct kvm_coalesced_mmio_zone)
 #define KVM_UNREGISTER_COALESCED_MMIO _IOW(KVMIO, 0x68, struct kvm_coalesced_mmio_zone)
-#define KVM_ASSIGN_PCI_DEVICE _IOR(KVMIO, 0x69, struct kvm_assigned_pci_dev)
 #define KVM_SET_GSI_ROUTING _IOW(KVMIO, 0x6a, struct kvm_irq_routing)
-#define KVM_ASSIGN_IRQ __KVM_DEPRECATED_VM_R_0x70
-#define KVM_ASSIGN_DEV_IRQ _IOW(KVMIO, 0x70, struct kvm_assigned_irq)
 #define KVM_REINJECT_CONTROL _IO(KVMIO, 0x71)
-#define KVM_DEASSIGN_PCI_DEVICE _IOW(KVMIO, 0x72, struct kvm_assigned_pci_dev)
-#define KVM_ASSIGN_SET_MSIX_NR _IOW(KVMIO, 0x73, struct kvm_assigned_msix_nr)
-#define KVM_ASSIGN_SET_MSIX_ENTRY _IOW(KVMIO, 0x74, struct kvm_assigned_msix_entry)
-#define KVM_DEASSIGN_DEV_IRQ _IOW(KVMIO, 0x75, struct kvm_assigned_irq)
 #define KVM_IRQFD _IOW(KVMIO, 0x76, struct kvm_irqfd)
 #define KVM_CREATE_PIT2 _IOW(KVMIO, 0x77, struct kvm_pit_config)
 #define KVM_SET_BOOT_CPU_ID _IO(KVMIO, 0x78)
@@ -1187,7 +931,6 @@
 #define KVM_PPC_GET_PVINFO _IOW(KVMIO, 0xa1, struct kvm_ppc_pvinfo)
 #define KVM_SET_TSC_KHZ _IO(KVMIO, 0xa2)
 #define KVM_GET_TSC_KHZ _IO(KVMIO, 0xa3)
-#define KVM_ASSIGN_SET_INTX_MASK _IOW(KVMIO, 0xa4, struct kvm_assigned_pci_dev)
 #define KVM_SIGNAL_MSI _IOW(KVMIO, 0xa5, struct kvm_msi)
 #define KVM_PPC_GET_SMMU_INFO _IOR(KVMIO, 0xa6, struct kvm_ppc_smmu_info)
 #define KVM_PPC_ALLOCATE_HTAB _IOWR(KVMIO, 0xa7, __u32)
@@ -1218,7 +961,6 @@
 #define KVM_SET_SREGS _IOW(KVMIO, 0x84, struct kvm_sregs)
 #define KVM_TRANSLATE _IOWR(KVMIO, 0x85, struct kvm_translation)
 #define KVM_INTERRUPT _IOW(KVMIO, 0x86, struct kvm_interrupt)
-#define KVM_DEBUG_GUEST __KVM_DEPRECATED_VCPU_W_0x87
 #define KVM_GET_MSRS _IOWR(KVMIO, 0x88, struct kvm_msrs)
 #define KVM_SET_MSRS _IOW(KVMIO, 0x89, struct kvm_msrs)
 #define KVM_SET_CPUID _IOW(KVMIO, 0x8a, struct kvm_cpuid)
@@ -1284,322 +1026,16 @@
 #define KVM_ARM_VCPU_FINALIZE _IOW(KVMIO, 0xc2, int)
 #define KVM_S390_NORMAL_RESET _IO(KVMIO, 0xc3)
 #define KVM_S390_CLEAR_RESET _IO(KVMIO, 0xc4)
-struct kvm_s390_pv_sec_parm {
-  __u64 origin;
-  __u64 length;
-};
-struct kvm_s390_pv_unp {
-  __u64 addr;
-  __u64 size;
-  __u64 tweak;
-};
-enum pv_cmd_dmp_id {
-  KVM_PV_DUMP_INIT,
-  KVM_PV_DUMP_CONFIG_STOR_STATE,
-  KVM_PV_DUMP_COMPLETE,
-  KVM_PV_DUMP_CPU,
-};
-struct kvm_s390_pv_dmp {
-  __u64 subcmd;
-  __u64 buff_addr;
-  __u64 buff_len;
-  __u64 gaddr;
-  __u64 reserved[4];
-};
-enum pv_cmd_info_id {
-  KVM_PV_INFO_VM,
-  KVM_PV_INFO_DUMP,
-};
-struct kvm_s390_pv_info_dump {
-  __u64 dump_cpu_buffer_len;
-  __u64 dump_config_mem_buffer_per_1m;
-  __u64 dump_config_finalize_len;
-};
-struct kvm_s390_pv_info_vm {
-  __u64 inst_calls_list[4];
-  __u64 max_cpus;
-  __u64 max_guests;
-  __u64 max_guest_addr;
-  __u64 feature_indication;
-};
-struct kvm_s390_pv_info_header {
-  __u32 id;
-  __u32 len_max;
-  __u32 len_written;
-  __u32 reserved;
-};
-struct kvm_s390_pv_info {
-  struct kvm_s390_pv_info_header header;
-  union {
-    struct kvm_s390_pv_info_dump dump;
-    struct kvm_s390_pv_info_vm vm;
-  };
-};
-enum pv_cmd_id {
-  KVM_PV_ENABLE,
-  KVM_PV_DISABLE,
-  KVM_PV_SET_SEC_PARMS,
-  KVM_PV_UNPACK,
-  KVM_PV_VERIFY,
-  KVM_PV_PREP_RESET,
-  KVM_PV_UNSHARE_ALL,
-  KVM_PV_INFO,
-  KVM_PV_DUMP,
-  KVM_PV_ASYNC_CLEANUP_PREPARE,
-  KVM_PV_ASYNC_CLEANUP_PERFORM,
-};
-struct kvm_pv_cmd {
-  __u32 cmd;
-  __u16 rc;
-  __u16 rrc;
-  __u64 data;
-  __u32 flags;
-  __u32 reserved[3];
-};
 #define KVM_S390_PV_COMMAND _IOWR(KVMIO, 0xc5, struct kvm_pv_cmd)
 #define KVM_X86_SET_MSR_FILTER _IOW(KVMIO, 0xc6, struct kvm_msr_filter)
 #define KVM_RESET_DIRTY_RINGS _IO(KVMIO, 0xc7)
 #define KVM_XEN_HVM_GET_ATTR _IOWR(KVMIO, 0xc8, struct kvm_xen_hvm_attr)
 #define KVM_XEN_HVM_SET_ATTR _IOW(KVMIO, 0xc9, struct kvm_xen_hvm_attr)
-struct kvm_xen_hvm_attr {
-  __u16 type;
-  __u16 pad[3];
-  union {
-    __u8 long_mode;
-    __u8 vector;
-    __u8 runstate_update_flag;
-    struct {
-      __u64 gfn;
-#define KVM_XEN_INVALID_GFN ((__u64) - 1)
-    } shared_info;
-    struct {
-      __u32 send_port;
-      __u32 type;
-      __u32 flags;
-#define KVM_XEN_EVTCHN_DEASSIGN (1 << 0)
-#define KVM_XEN_EVTCHN_UPDATE (1 << 1)
-#define KVM_XEN_EVTCHN_RESET (1 << 2)
-      union {
-        struct {
-          __u32 port;
-          __u32 vcpu;
-          __u32 priority;
-        } port;
-        struct {
-          __u32 port;
-          __s32 fd;
-        } eventfd;
-        __u32 padding[4];
-      } deliver;
-    } evtchn;
-    __u32 xen_version;
-    __u64 pad[8];
-  } u;
-};
-#define KVM_XEN_ATTR_TYPE_LONG_MODE 0x0
-#define KVM_XEN_ATTR_TYPE_SHARED_INFO 0x1
-#define KVM_XEN_ATTR_TYPE_UPCALL_VECTOR 0x2
-#define KVM_XEN_ATTR_TYPE_EVTCHN 0x3
-#define KVM_XEN_ATTR_TYPE_XEN_VERSION 0x4
-#define KVM_XEN_ATTR_TYPE_RUNSTATE_UPDATE_FLAG 0x5
 #define KVM_XEN_VCPU_GET_ATTR _IOWR(KVMIO, 0xca, struct kvm_xen_vcpu_attr)
 #define KVM_XEN_VCPU_SET_ATTR _IOW(KVMIO, 0xcb, struct kvm_xen_vcpu_attr)
 #define KVM_XEN_HVM_EVTCHN_SEND _IOW(KVMIO, 0xd0, struct kvm_irq_routing_xen_evtchn)
 #define KVM_GET_SREGS2 _IOR(KVMIO, 0xcc, struct kvm_sregs2)
 #define KVM_SET_SREGS2 _IOW(KVMIO, 0xcd, struct kvm_sregs2)
-struct kvm_xen_vcpu_attr {
-  __u16 type;
-  __u16 pad[3];
-  union {
-    __u64 gpa;
-#define KVM_XEN_INVALID_GPA ((__u64) - 1)
-    __u64 pad[8];
-    struct {
-      __u64 state;
-      __u64 state_entry_time;
-      __u64 time_running;
-      __u64 time_runnable;
-      __u64 time_blocked;
-      __u64 time_offline;
-    } runstate;
-    __u32 vcpu_id;
-    struct {
-      __u32 port;
-      __u32 priority;
-      __u64 expires_ns;
-    } timer;
-    __u8 vector;
-  } u;
-};
-#define KVM_XEN_VCPU_ATTR_TYPE_VCPU_INFO 0x0
-#define KVM_XEN_VCPU_ATTR_TYPE_VCPU_TIME_INFO 0x1
-#define KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_ADDR 0x2
-#define KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_CURRENT 0x3
-#define KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_DATA 0x4
-#define KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_ADJUST 0x5
-#define KVM_XEN_VCPU_ATTR_TYPE_VCPU_ID 0x6
-#define KVM_XEN_VCPU_ATTR_TYPE_TIMER 0x7
-#define KVM_XEN_VCPU_ATTR_TYPE_UPCALL_VECTOR 0x8
-enum sev_cmd_id {
-  KVM_SEV_INIT = 0,
-  KVM_SEV_ES_INIT,
-  KVM_SEV_LAUNCH_START,
-  KVM_SEV_LAUNCH_UPDATE_DATA,
-  KVM_SEV_LAUNCH_UPDATE_VMSA,
-  KVM_SEV_LAUNCH_SECRET,
-  KVM_SEV_LAUNCH_MEASURE,
-  KVM_SEV_LAUNCH_FINISH,
-  KVM_SEV_SEND_START,
-  KVM_SEV_SEND_UPDATE_DATA,
-  KVM_SEV_SEND_UPDATE_VMSA,
-  KVM_SEV_SEND_FINISH,
-  KVM_SEV_RECEIVE_START,
-  KVM_SEV_RECEIVE_UPDATE_DATA,
-  KVM_SEV_RECEIVE_UPDATE_VMSA,
-  KVM_SEV_RECEIVE_FINISH,
-  KVM_SEV_GUEST_STATUS,
-  KVM_SEV_DBG_DECRYPT,
-  KVM_SEV_DBG_ENCRYPT,
-  KVM_SEV_CERT_EXPORT,
-  KVM_SEV_GET_ATTESTATION_REPORT,
-  KVM_SEV_SEND_CANCEL,
-  KVM_SEV_NR_MAX,
-};
-struct kvm_sev_cmd {
-  __u32 id;
-  __u64 data;
-  __u32 error;
-  __u32 sev_fd;
-};
-struct kvm_sev_launch_start {
-  __u32 handle;
-  __u32 policy;
-  __u64 dh_uaddr;
-  __u32 dh_len;
-  __u64 session_uaddr;
-  __u32 session_len;
-};
-struct kvm_sev_launch_update_data {
-  __u64 uaddr;
-  __u32 len;
-};
-struct kvm_sev_launch_secret {
-  __u64 hdr_uaddr;
-  __u32 hdr_len;
-  __u64 guest_uaddr;
-  __u32 guest_len;
-  __u64 trans_uaddr;
-  __u32 trans_len;
-};
-struct kvm_sev_launch_measure {
-  __u64 uaddr;
-  __u32 len;
-};
-struct kvm_sev_guest_status {
-  __u32 handle;
-  __u32 policy;
-  __u32 state;
-};
-struct kvm_sev_dbg {
-  __u64 src_uaddr;
-  __u64 dst_uaddr;
-  __u32 len;
-};
-struct kvm_sev_attestation_report {
-  __u8 mnonce[16];
-  __u64 uaddr;
-  __u32 len;
-};
-struct kvm_sev_send_start {
-  __u32 policy;
-  __u64 pdh_cert_uaddr;
-  __u32 pdh_cert_len;
-  __u64 plat_certs_uaddr;
-  __u32 plat_certs_len;
-  __u64 amd_certs_uaddr;
-  __u32 amd_certs_len;
-  __u64 session_uaddr;
-  __u32 session_len;
-};
-struct kvm_sev_send_update_data {
-  __u64 hdr_uaddr;
-  __u32 hdr_len;
-  __u64 guest_uaddr;
-  __u32 guest_len;
-  __u64 trans_uaddr;
-  __u32 trans_len;
-};
-struct kvm_sev_receive_start {
-  __u32 handle;
-  __u32 policy;
-  __u64 pdh_uaddr;
-  __u32 pdh_len;
-  __u64 session_uaddr;
-  __u32 session_len;
-};
-struct kvm_sev_receive_update_data {
-  __u64 hdr_uaddr;
-  __u32 hdr_len;
-  __u64 guest_uaddr;
-  __u32 guest_len;
-  __u64 trans_uaddr;
-  __u32 trans_len;
-};
-#define KVM_DEV_ASSIGN_ENABLE_IOMMU (1 << 0)
-#define KVM_DEV_ASSIGN_PCI_2_3 (1 << 1)
-#define KVM_DEV_ASSIGN_MASK_INTX (1 << 2)
-struct kvm_assigned_pci_dev {
-  __u32 assigned_dev_id;
-  __u32 busnr;
-  __u32 devfn;
-  __u32 flags;
-  __u32 segnr;
-  union {
-    __u32 reserved[11];
-  };
-};
-#define KVM_DEV_IRQ_HOST_INTX (1 << 0)
-#define KVM_DEV_IRQ_HOST_MSI (1 << 1)
-#define KVM_DEV_IRQ_HOST_MSIX (1 << 2)
-#define KVM_DEV_IRQ_GUEST_INTX (1 << 8)
-#define KVM_DEV_IRQ_GUEST_MSI (1 << 9)
-#define KVM_DEV_IRQ_GUEST_MSIX (1 << 10)
-#define KVM_DEV_IRQ_HOST_MASK 0x00ff
-#define KVM_DEV_IRQ_GUEST_MASK 0xff00
-struct kvm_assigned_irq {
-  __u32 assigned_dev_id;
-  __u32 host_irq;
-  __u32 guest_irq;
-  __u32 flags;
-  union {
-    __u32 reserved[12];
-  };
-};
-struct kvm_assigned_msix_nr {
-  __u32 assigned_dev_id;
-  __u16 entry_nr;
-  __u16 padding;
-};
-#define KVM_MAX_MSIX_PER_DEV 256
-struct kvm_assigned_msix_entry {
-  __u32 assigned_dev_id;
-  __u32 gsi;
-  __u16 entry;
-  __u16 padding[3];
-};
-#define KVM_X2APIC_API_USE_32BIT_IDS (1ULL << 0)
-#define KVM_X2APIC_API_DISABLE_BROADCAST_QUIRK (1ULL << 1)
-#define KVM_ARM_DEV_EL1_VTIMER (1 << 0)
-#define KVM_ARM_DEV_EL1_PTIMER (1 << 1)
-#define KVM_ARM_DEV_PMU (1 << 2)
-struct kvm_hyperv_eventfd {
-  __u32 conn_id;
-  __s32 fd;
-  __u32 flags;
-  __u32 padding[3];
-};
-#define KVM_HYPERV_CONN_ID_MASK 0x00ffffff
-#define KVM_HYPERV_EVENTFD_DEASSIGN (1 << 0)
 #define KVM_DIRTY_LOG_MANUAL_PROTECT_ENABLE (1 << 0)
 #define KVM_DIRTY_LOG_INITIALLY_SET (1 << 1)
 #ifndef KVM_DIRTY_LOG_PAGE_OFFSET
@@ -1659,24 +1095,18 @@
 #define KVM_X86_NOTIFY_VMEXIT_ENABLED (1ULL << 0)
 #define KVM_X86_NOTIFY_VMEXIT_USER (1ULL << 1)
 #define KVM_S390_ZPCI_OP _IOW(KVMIO, 0xd1, struct kvm_s390_zpci_op)
-struct kvm_s390_zpci_op {
-  __u32 fh;
-  __u8 op;
-  __u8 pad[3];
-  union {
-    struct {
-      __u64 ibv;
-      __u64 sb;
-      __u32 flags;
-      __u32 noi;
-      __u8 isc;
-      __u8 sbo;
-      __u16 pad;
-    } reg_aen;
-    __u64 reserved[8];
-  } u;
+#define KVM_SET_MEMORY_ATTRIBUTES _IOW(KVMIO, 0xd2, struct kvm_memory_attributes)
+struct kvm_memory_attributes {
+  __u64 address;
+  __u64 size;
+  __u64 attributes;
+  __u64 flags;
 };
-#define KVM_S390_ZPCIOP_REG_AEN 0
-#define KVM_S390_ZPCIOP_DEREG_AEN 1
-#define KVM_S390_ZPCIOP_REGAEN_HOST (1 << 0)
+#define KVM_MEMORY_ATTRIBUTE_PRIVATE (1ULL << 3)
+#define KVM_CREATE_GUEST_MEMFD _IOWR(KVMIO, 0xd4, struct kvm_create_guest_memfd)
+struct kvm_create_guest_memfd {
+  __u64 size;
+  __u64 flags;
+  __u64 reserved[6];
+};
 #endif
diff --git a/libc/kernel/uapi/linux/lsm.h b/libc/kernel/uapi/linux/lsm.h
new file mode 100644
index 0000000..3a3f152
--- /dev/null
+++ b/libc/kernel/uapi/linux/lsm.h
@@ -0,0 +1,41 @@
+/*
+ * This file is auto-generated. Modifications will be lost.
+ *
+ * See https://android.googlesource.com/platform/bionic/+/master/libc/kernel/
+ * for more information.
+ */
+#ifndef _UAPI_LINUX_LSM_H
+#define _UAPI_LINUX_LSM_H
+#include <linux/stddef.h>
+#include <linux/types.h>
+#include <linux/unistd.h>
+struct lsm_ctx {
+  __u64 id;
+  __u64 flags;
+  __u64 len;
+  __u64 ctx_len;
+  __u8 ctx[] __counted_by(ctx_len);
+};
+#define LSM_ID_UNDEF 0
+#define LSM_ID_CAPABILITY 100
+#define LSM_ID_SELINUX 101
+#define LSM_ID_SMACK 102
+#define LSM_ID_TOMOYO 103
+#define LSM_ID_APPARMOR 104
+#define LSM_ID_YAMA 105
+#define LSM_ID_LOADPIN 106
+#define LSM_ID_SAFESETID 107
+#define LSM_ID_LOCKDOWN 108
+#define LSM_ID_BPF 109
+#define LSM_ID_LANDLOCK 110
+#define LSM_ID_IMA 111
+#define LSM_ID_EVM 112
+#define LSM_ATTR_UNDEF 0
+#define LSM_ATTR_CURRENT 100
+#define LSM_ATTR_EXEC 101
+#define LSM_ATTR_FSCREATE 102
+#define LSM_ATTR_KEYCREATE 103
+#define LSM_ATTR_PREV 104
+#define LSM_ATTR_SOCKCREATE 105
+#define LSM_FLAG_SINGLE 0x0001
+#endif
diff --git a/libc/kernel/uapi/linux/magic.h b/libc/kernel/uapi/linux/magic.h
index c4d698e..4d24726 100644
--- a/libc/kernel/uapi/linux/magic.h
+++ b/libc/kernel/uapi/linux/magic.h
@@ -90,4 +90,5 @@
 #define DMA_BUF_MAGIC 0x444d4142
 #define DEVMEM_MAGIC 0x454d444d
 #define SECRETMEM_MAGIC 0x5345434d
+#define PID_FS_MAGIC 0x50494446
 #endif
diff --git a/libc/kernel/uapi/linux/mctp.h b/libc/kernel/uapi/linux/mctp.h
index 8920339..0057842 100644
--- a/libc/kernel/uapi/linux/mctp.h
+++ b/libc/kernel/uapi/linux/mctp.h
@@ -38,9 +38,18 @@
 #define MCTP_OPT_ADDR_EXT 1
 #define SIOCMCTPALLOCTAG (SIOCPROTOPRIVATE + 0)
 #define SIOCMCTPDROPTAG (SIOCPROTOPRIVATE + 1)
+#define SIOCMCTPALLOCTAG2 (SIOCPROTOPRIVATE + 2)
+#define SIOCMCTPDROPTAG2 (SIOCPROTOPRIVATE + 3)
 struct mctp_ioc_tag_ctl {
   mctp_eid_t peer_addr;
   __u8 tag;
   __u16 flags;
 };
+struct mctp_ioc_tag_ctl2 {
+  unsigned int net;
+  mctp_eid_t peer_addr;
+  mctp_eid_t local_addr;
+  __u16 flags;
+  __u8 tag;
+};
 #endif
diff --git a/libc/kernel/uapi/linux/mdio.h b/libc/kernel/uapi/linux/mdio.h
index 7ea6a72..7b51b73 100644
--- a/libc/kernel/uapi/linux/mdio.h
+++ b/libc/kernel/uapi/linux/mdio.h
@@ -110,6 +110,8 @@
 #define MDIO_PMA_SPEED_1000 0x0010
 #define MDIO_PMA_SPEED_100 0x0020
 #define MDIO_PMA_SPEED_10 0x0040
+#define MDIO_PMA_SPEED_2_5G 0x2000
+#define MDIO_PMA_SPEED_5G 0x4000
 #define MDIO_PCS_SPEED_10P2B 0x0002
 #define MDIO_PCS_SPEED_2_5G 0x0040
 #define MDIO_PCS_SPEED_5G 0x0080
@@ -273,6 +275,8 @@
 #define MDIO_AN_T1_ADV_L_ACK ADVERTISE_LPACK
 #define MDIO_AN_T1_ADV_L_NEXT_PAGE_REQ ADVERTISE_NPAGE
 #define MDIO_AN_T1_ADV_M_B10L 0x4000
+#define MDIO_AN_T1_ADV_M_1000BT1 0x0080
+#define MDIO_AN_T1_ADV_M_100BT1 0x0020
 #define MDIO_AN_T1_ADV_M_MST 0x0010
 #define MDIO_AN_T1_ADV_H_10L_TX_HI_REQ 0x1000
 #define MDIO_AN_T1_ADV_H_10L_TX_HI 0x2000
diff --git a/libc/kernel/uapi/linux/mempolicy.h b/libc/kernel/uapi/linux/mempolicy.h
index 6cd8fd1..09ce41e 100644
--- a/libc/kernel/uapi/linux/mempolicy.h
+++ b/libc/kernel/uapi/linux/mempolicy.h
@@ -14,6 +14,7 @@
   MPOL_INTERLEAVE,
   MPOL_LOCAL,
   MPOL_PREFERRED_MANY,
+  MPOL_WEIGHTED_INTERLEAVE,
   MPOL_MAX,
 };
 #define MPOL_F_STATIC_NODES (1 << 15)
diff --git a/libc/kernel/uapi/linux/mount.h b/libc/kernel/uapi/linux/mount.h
index faef8af..1166a7a 100644
--- a/libc/kernel/uapi/linux/mount.h
+++ b/libc/kernel/uapi/linux/mount.h
@@ -88,4 +88,41 @@
   __u64 userns_fd;
 };
 #define MOUNT_ATTR_SIZE_VER0 32
+struct statmount {
+  __u32 size;
+  __u32 __spare1;
+  __u64 mask;
+  __u32 sb_dev_major;
+  __u32 sb_dev_minor;
+  __u64 sb_magic;
+  __u32 sb_flags;
+  __u32 fs_type;
+  __u64 mnt_id;
+  __u64 mnt_parent_id;
+  __u32 mnt_id_old;
+  __u32 mnt_parent_id_old;
+  __u64 mnt_attr;
+  __u64 mnt_propagation;
+  __u64 mnt_peer_group;
+  __u64 mnt_master;
+  __u64 propagate_from;
+  __u32 mnt_root;
+  __u32 mnt_point;
+  __u64 __spare2[50];
+  char str[];
+};
+struct mnt_id_req {
+  __u32 size;
+  __u32 spare;
+  __u64 mnt_id;
+  __u64 param;
+};
+#define MNT_ID_REQ_SIZE_VER0 24
+#define STATMOUNT_SB_BASIC 0x00000001U
+#define STATMOUNT_MNT_BASIC 0x00000002U
+#define STATMOUNT_PROPAGATE_FROM 0x00000004U
+#define STATMOUNT_MNT_ROOT 0x00000008U
+#define STATMOUNT_MNT_POINT 0x00000010U
+#define STATMOUNT_FS_TYPE 0x00000020U
+#define LSMT_ROOT 0xffffffffffffffff
 #endif
diff --git a/libc/kernel/uapi/linux/mptcp.h b/libc/kernel/uapi/linux/mptcp.h
index 6f5d272..3c9ba5e 100644
--- a/libc/kernel/uapi/linux/mptcp.h
+++ b/libc/kernel/uapi/linux/mptcp.h
@@ -52,6 +52,7 @@
   __u64 mptcpi_bytes_sent;
   __u64 mptcpi_bytes_received;
   __u64 mptcpi_bytes_acked;
+  __u8 mptcpi_subflows_total;
 };
 #define MPTCP_RST_EUNSPEC 0
 #define MPTCP_RST_EMPTCP 1
diff --git a/libc/kernel/uapi/linux/netdev.h b/libc/kernel/uapi/linux/netdev.h
index 3c5cb94..cbfe26a 100644
--- a/libc/kernel/uapi/linux/netdev.h
+++ b/libc/kernel/uapi/linux/netdev.h
@@ -21,7 +21,18 @@
 enum netdev_xdp_rx_metadata {
   NETDEV_XDP_RX_METADATA_TIMESTAMP = 1,
   NETDEV_XDP_RX_METADATA_HASH = 2,
-  NETDEV_XDP_RX_METADATA_MASK = 3,
+  NETDEV_XDP_RX_METADATA_VLAN_TAG = 4,
+};
+enum netdev_xsk_flags {
+  NETDEV_XSK_FLAGS_TX_TIMESTAMP = 1,
+  NETDEV_XSK_FLAGS_TX_CHECKSUM = 2,
+};
+enum netdev_queue_type {
+  NETDEV_QUEUE_TYPE_RX,
+  NETDEV_QUEUE_TYPE_TX,
+};
+enum netdev_qstats_scope {
+  NETDEV_QSTATS_SCOPE_QUEUE = 1,
 };
 enum {
   NETDEV_A_DEV_IFINDEX = 1,
@@ -29,16 +40,81 @@
   NETDEV_A_DEV_XDP_FEATURES,
   NETDEV_A_DEV_XDP_ZC_MAX_SEGS,
   NETDEV_A_DEV_XDP_RX_METADATA_FEATURES,
+  NETDEV_A_DEV_XSK_FEATURES,
   __NETDEV_A_DEV_MAX,
   NETDEV_A_DEV_MAX = (__NETDEV_A_DEV_MAX - 1)
 };
 enum {
+  NETDEV_A_PAGE_POOL_ID = 1,
+  NETDEV_A_PAGE_POOL_IFINDEX,
+  NETDEV_A_PAGE_POOL_NAPI_ID,
+  NETDEV_A_PAGE_POOL_INFLIGHT,
+  NETDEV_A_PAGE_POOL_INFLIGHT_MEM,
+  NETDEV_A_PAGE_POOL_DETACH_TIME,
+  __NETDEV_A_PAGE_POOL_MAX,
+  NETDEV_A_PAGE_POOL_MAX = (__NETDEV_A_PAGE_POOL_MAX - 1)
+};
+enum {
+  NETDEV_A_PAGE_POOL_STATS_INFO = 1,
+  NETDEV_A_PAGE_POOL_STATS_ALLOC_FAST = 8,
+  NETDEV_A_PAGE_POOL_STATS_ALLOC_SLOW,
+  NETDEV_A_PAGE_POOL_STATS_ALLOC_SLOW_HIGH_ORDER,
+  NETDEV_A_PAGE_POOL_STATS_ALLOC_EMPTY,
+  NETDEV_A_PAGE_POOL_STATS_ALLOC_REFILL,
+  NETDEV_A_PAGE_POOL_STATS_ALLOC_WAIVE,
+  NETDEV_A_PAGE_POOL_STATS_RECYCLE_CACHED,
+  NETDEV_A_PAGE_POOL_STATS_RECYCLE_CACHE_FULL,
+  NETDEV_A_PAGE_POOL_STATS_RECYCLE_RING,
+  NETDEV_A_PAGE_POOL_STATS_RECYCLE_RING_FULL,
+  NETDEV_A_PAGE_POOL_STATS_RECYCLE_RELEASED_REFCNT,
+  __NETDEV_A_PAGE_POOL_STATS_MAX,
+  NETDEV_A_PAGE_POOL_STATS_MAX = (__NETDEV_A_PAGE_POOL_STATS_MAX - 1)
+};
+enum {
+  NETDEV_A_NAPI_IFINDEX = 1,
+  NETDEV_A_NAPI_ID,
+  NETDEV_A_NAPI_IRQ,
+  NETDEV_A_NAPI_PID,
+  __NETDEV_A_NAPI_MAX,
+  NETDEV_A_NAPI_MAX = (__NETDEV_A_NAPI_MAX - 1)
+};
+enum {
+  NETDEV_A_QUEUE_ID = 1,
+  NETDEV_A_QUEUE_IFINDEX,
+  NETDEV_A_QUEUE_TYPE,
+  NETDEV_A_QUEUE_NAPI_ID,
+  __NETDEV_A_QUEUE_MAX,
+  NETDEV_A_QUEUE_MAX = (__NETDEV_A_QUEUE_MAX - 1)
+};
+enum {
+  NETDEV_A_QSTATS_IFINDEX = 1,
+  NETDEV_A_QSTATS_QUEUE_TYPE,
+  NETDEV_A_QSTATS_QUEUE_ID,
+  NETDEV_A_QSTATS_SCOPE,
+  NETDEV_A_QSTATS_RX_PACKETS = 8,
+  NETDEV_A_QSTATS_RX_BYTES,
+  NETDEV_A_QSTATS_TX_PACKETS,
+  NETDEV_A_QSTATS_TX_BYTES,
+  NETDEV_A_QSTATS_RX_ALLOC_FAIL,
+  __NETDEV_A_QSTATS_MAX,
+  NETDEV_A_QSTATS_MAX = (__NETDEV_A_QSTATS_MAX - 1)
+};
+enum {
   NETDEV_CMD_DEV_GET = 1,
   NETDEV_CMD_DEV_ADD_NTF,
   NETDEV_CMD_DEV_DEL_NTF,
   NETDEV_CMD_DEV_CHANGE_NTF,
+  NETDEV_CMD_PAGE_POOL_GET,
+  NETDEV_CMD_PAGE_POOL_ADD_NTF,
+  NETDEV_CMD_PAGE_POOL_DEL_NTF,
+  NETDEV_CMD_PAGE_POOL_CHANGE_NTF,
+  NETDEV_CMD_PAGE_POOL_STATS_GET,
+  NETDEV_CMD_QUEUE_GET,
+  NETDEV_CMD_NAPI_GET,
+  NETDEV_CMD_QSTATS_GET,
   __NETDEV_CMD_MAX,
   NETDEV_CMD_MAX = (__NETDEV_CMD_MAX - 1)
 };
 #define NETDEV_MCGRP_MGMT "mgmt"
+#define NETDEV_MCGRP_PAGE_POOL "page-pool"
 #endif
diff --git a/libc/kernel/uapi/linux/netfilter/nf_tables.h b/libc/kernel/uapi/linux/netfilter/nf_tables.h
index 1d0af17..7922147 100644
--- a/libc/kernel/uapi/linux/netfilter/nf_tables.h
+++ b/libc/kernel/uapi/linux/netfilter/nf_tables.h
@@ -103,8 +103,9 @@
 enum nft_table_flags {
   NFT_TABLE_F_DORMANT = 0x1,
   NFT_TABLE_F_OWNER = 0x2,
+  NFT_TABLE_F_PERSIST = 0x4,
 };
-#define NFT_TABLE_F_MASK (NFT_TABLE_F_DORMANT | NFT_TABLE_F_OWNER)
+#define NFT_TABLE_F_MASK (NFT_TABLE_F_DORMANT | NFT_TABLE_F_OWNER | NFT_TABLE_F_PERSIST)
 enum nft_table_attributes {
   NFTA_TABLE_UNSPEC,
   NFTA_TABLE_NAME,
@@ -157,6 +158,7 @@
 };
 #define NFTA_RULE_MAX (__NFTA_RULE_MAX - 1)
 enum nft_rule_compat_flags {
+  NFT_RULE_COMPAT_F_UNUSED = (1 << 0),
   NFT_RULE_COMPAT_F_INV = (1 << 1),
   NFT_RULE_COMPAT_F_MASK = NFT_RULE_COMPAT_F_INV,
 };
diff --git a/libc/kernel/uapi/linux/nexthop.h b/libc/kernel/uapi/linux/nexthop.h
index ea68f62..5726a66 100644
--- a/libc/kernel/uapi/linux/nexthop.h
+++ b/libc/kernel/uapi/linux/nexthop.h
@@ -26,6 +26,8 @@
   __NEXTHOP_GRP_TYPE_MAX,
 };
 #define NEXTHOP_GRP_TYPE_MAX (__NEXTHOP_GRP_TYPE_MAX - 1)
+#define NHA_OP_FLAG_DUMP_STATS BIT(0)
+#define NHA_OP_FLAG_DUMP_HW_STATS BIT(1)
 enum {
   NHA_UNSPEC,
   NHA_ID,
@@ -41,6 +43,10 @@
   NHA_FDB,
   NHA_RES_GROUP,
   NHA_RES_BUCKET,
+  NHA_OP_FLAGS,
+  NHA_GROUP_STATS,
+  NHA_HW_STATS_ENABLE,
+  NHA_HW_STATS_USED,
   __NHA_MAX,
 };
 #define NHA_MAX (__NHA_MAX - 1)
@@ -63,4 +69,18 @@
   __NHA_RES_BUCKET_MAX,
 };
 #define NHA_RES_BUCKET_MAX (__NHA_RES_BUCKET_MAX - 1)
+enum {
+  NHA_GROUP_STATS_UNSPEC,
+  NHA_GROUP_STATS_ENTRY,
+  __NHA_GROUP_STATS_MAX,
+};
+#define NHA_GROUP_STATS_MAX (__NHA_GROUP_STATS_MAX - 1)
+enum {
+  NHA_GROUP_STATS_ENTRY_UNSPEC,
+  NHA_GROUP_STATS_ENTRY_ID,
+  NHA_GROUP_STATS_ENTRY_PACKETS,
+  NHA_GROUP_STATS_ENTRY_PACKETS_HW,
+  __NHA_GROUP_STATS_ENTRY_MAX,
+};
+#define NHA_GROUP_STATS_ENTRY_MAX (__NHA_GROUP_STATS_ENTRY_MAX - 1)
 #endif
diff --git a/libc/kernel/uapi/linux/nl80211.h b/libc/kernel/uapi/linux/nl80211.h
index bf87c0e..ddf2b3b 100644
--- a/libc/kernel/uapi/linux/nl80211.h
+++ b/libc/kernel/uapi/linux/nl80211.h
@@ -180,6 +180,7 @@
   NL80211_CMD_REMOVE_LINK_STA,
   NL80211_CMD_SET_HW_TIMESTAMP,
   NL80211_CMD_LINKS_REMOVED,
+  NL80211_CMD_SET_TID_TO_LINK_MAPPING,
   __NL80211_CMD_AFTER_LAST,
   NL80211_CMD_MAX = __NL80211_CMD_AFTER_LAST - 1
 };
@@ -523,6 +524,10 @@
   NL80211_ATTR_HW_TIMESTAMP_ENABLED,
   NL80211_ATTR_EMA_RNR_ELEMS,
   NL80211_ATTR_MLO_LINK_DISABLED,
+  NL80211_ATTR_BSS_DUMP_INCLUDE_USE_DATA,
+  NL80211_ATTR_MLO_TTLM_DLINK,
+  NL80211_ATTR_MLO_TTLM_ULINK,
+  NL80211_ATTR_ASSOC_SPP_AMSDU,
   __NL80211_ATTR_AFTER_LAST,
   NUM_NL80211_ATTR = __NL80211_ATTR_AFTER_LAST,
   NL80211_ATTR_MAX = __NL80211_ATTR_AFTER_LAST - 1
@@ -598,6 +603,7 @@
   NL80211_STA_FLAG_AUTHENTICATED,
   NL80211_STA_FLAG_TDLS_PEER,
   NL80211_STA_FLAG_ASSOCIATED,
+  NL80211_STA_FLAG_SPP_AMSDU,
   __NL80211_STA_FLAG_AFTER_LAST,
   NL80211_STA_FLAG_MAX = __NL80211_STA_FLAG_AFTER_LAST - 1
 };
@@ -868,6 +874,10 @@
   NL80211_FREQUENCY_ATTR_NO_320MHZ,
   NL80211_FREQUENCY_ATTR_NO_EHT,
   NL80211_FREQUENCY_ATTR_PSD,
+  NL80211_FREQUENCY_ATTR_DFS_CONCURRENT,
+  NL80211_FREQUENCY_ATTR_NO_6GHZ_VLP_CLIENT,
+  NL80211_FREQUENCY_ATTR_NO_6GHZ_AFC_CLIENT,
+  NL80211_FREQUENCY_ATTR_CAN_MONITOR,
   __NL80211_FREQUENCY_ATTR_AFTER_LAST,
   NL80211_FREQUENCY_ATTR_MAX = __NL80211_FREQUENCY_ATTR_AFTER_LAST - 1
 };
@@ -876,6 +886,8 @@
 #define NL80211_FREQUENCY_ATTR_NO_IBSS NL80211_FREQUENCY_ATTR_NO_IR
 #define NL80211_FREQUENCY_ATTR_NO_IR NL80211_FREQUENCY_ATTR_NO_IR
 #define NL80211_FREQUENCY_ATTR_GO_CONCURRENT NL80211_FREQUENCY_ATTR_IR_CONCURRENT
+#define NL80211_FREQUENCY_ATTR_NO_UHB_VLP_CLIENT NL80211_FREQUENCY_ATTR_NO_6GHZ_VLP_CLIENT
+#define NL80211_FREQUENCY_ATTR_NO_UHB_AFC_CLIENT NL80211_FREQUENCY_ATTR_NO_6GHZ_AFC_CLIENT
 enum nl80211_bitrate_attr {
   __NL80211_BITRATE_ATTR_INVALID,
   NL80211_BITRATE_ATTR_RATE,
@@ -940,12 +952,17 @@
   NL80211_RRF_NO_320MHZ = 1 << 18,
   NL80211_RRF_NO_EHT = 1 << 19,
   NL80211_RRF_PSD = 1 << 20,
+  NL80211_RRF_DFS_CONCURRENT = 1 << 21,
+  NL80211_RRF_NO_6GHZ_VLP_CLIENT = 1 << 22,
+  NL80211_RRF_NO_6GHZ_AFC_CLIENT = 1 << 23,
 };
 #define NL80211_RRF_PASSIVE_SCAN NL80211_RRF_NO_IR
 #define NL80211_RRF_NO_IBSS NL80211_RRF_NO_IR
 #define NL80211_RRF_NO_IR NL80211_RRF_NO_IR
 #define NL80211_RRF_NO_HT40 (NL80211_RRF_NO_HT40MINUS | NL80211_RRF_NO_HT40PLUS)
 #define NL80211_RRF_GO_CONCURRENT NL80211_RRF_IR_CONCURRENT
+#define NL80211_RRF_NO_UHB_VLP_CLIENT NL80211_RRF_NO_6GHZ_VLP_CLIENT
+#define NL80211_RRF_NO_UHB_AFC_CLIENT NL80211_RRF_NO_6GHZ_AFC_CLIENT
 #define NL80211_RRF_NO_IR_ALL (NL80211_RRF_NO_IR | __NL80211_RRF_NO_IBSS)
 enum nl80211_dfs_regions {
   NL80211_DFS_UNSET = 0,
@@ -1104,6 +1121,15 @@
   NL80211_BSS_CHAN_WIDTH_1,
   NL80211_BSS_CHAN_WIDTH_2,
 };
+enum nl80211_bss_use_for {
+  NL80211_BSS_USE_FOR_NORMAL = 1 << 0,
+  NL80211_BSS_USE_FOR_MLD_LINK = 1 << 1,
+};
+enum nl80211_bss_cannot_use_reasons {
+  NL80211_BSS_CANNOT_USE_NSTR_NONPRIMARY = 1 << 0,
+  NL80211_BSS_CANNOT_USE_6GHZ_PWR_MISMATCH = 1 << 1,
+};
+#define NL80211_BSS_CANNOT_USE_UHB_PWR_MISMATCH NL80211_BSS_CANNOT_USE_6GHZ_PWR_MISMATCH
 enum nl80211_bss {
   __NL80211_BSS_INVALID,
   NL80211_BSS_BSSID,
@@ -1128,6 +1154,8 @@
   NL80211_BSS_FREQUENCY_OFFSET,
   NL80211_BSS_MLO_LINK_ID,
   NL80211_BSS_MLD_ADDR,
+  NL80211_BSS_USE_FOR,
+  NL80211_BSS_CANNOT_USE_REASONS,
   __NL80211_BSS_AFTER_LAST,
   NL80211_BSS_MAX = __NL80211_BSS_AFTER_LAST - 1
 };
@@ -1318,6 +1346,7 @@
   NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS,
   NL80211_WOWLAN_TRIG_NET_DETECT,
   NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS,
+  NL80211_WOWLAN_TRIG_UNPROTECTED_DEAUTH_DISASSOC,
   NUM_NL80211_WOWLAN_TRIG,
   MAX_NL80211_WOWLAN_TRIG = NUM_NL80211_WOWLAN_TRIG - 1
 };
@@ -1547,6 +1576,8 @@
   NL80211_EXT_FEATURE_AUTH_AND_DEAUTH_RANDOM_TA,
   NL80211_EXT_FEATURE_OWE_OFFLOAD,
   NL80211_EXT_FEATURE_OWE_OFFLOAD_AP,
+  NL80211_EXT_FEATURE_DFS_CONCURRENT,
+  NL80211_EXT_FEATURE_SPP_AMSDU_SUPPORT,
   NUM_NL80211_EXT_FEATURES,
   MAX_NL80211_EXT_FEATURES = NUM_NL80211_EXT_FEATURES - 1
 };
diff --git a/libc/kernel/uapi/linux/nsm.h b/libc/kernel/uapi/linux/nsm.h
new file mode 100644
index 0000000..5c8e27d
--- /dev/null
+++ b/libc/kernel/uapi/linux/nsm.h
@@ -0,0 +1,23 @@
+/*
+ * This file is auto-generated. Modifications will be lost.
+ *
+ * See https://android.googlesource.com/platform/bionic/+/master/libc/kernel/
+ * for more information.
+ */
+#ifndef __UAPI_LINUX_NSM_H
+#define __UAPI_LINUX_NSM_H
+#include <linux/ioctl.h>
+#include <linux/types.h>
+#define NSM_MAGIC 0x0A
+#define NSM_REQUEST_MAX_SIZE 0x1000
+#define NSM_RESPONSE_MAX_SIZE 0x3000
+struct nsm_iovec {
+  __u64 addr;
+  __u64 len;
+};
+struct nsm_raw {
+  struct nsm_iovec request;
+  struct nsm_iovec response;
+};
+#define NSM_IOCTL_RAW _IOWR(NSM_MAGIC, 0x0, struct nsm_raw)
+#endif
diff --git a/libc/kernel/uapi/linux/pcitest.h b/libc/kernel/uapi/linux/pcitest.h
index 2e8e761..38e498d 100644
--- a/libc/kernel/uapi/linux/pcitest.h
+++ b/libc/kernel/uapi/linux/pcitest.h
@@ -7,7 +7,8 @@
 #ifndef __UAPI_LINUX_PCITEST_H
 #define __UAPI_LINUX_PCITEST_H
 #define PCITEST_BAR _IO('P', 0x1)
-#define PCITEST_LEGACY_IRQ _IO('P', 0x2)
+#define PCITEST_INTX_IRQ _IO('P', 0x2)
+#define PCITEST_LEGACY_IRQ PCITEST_INTX_IRQ
 #define PCITEST_MSI _IOW('P', 0x3, int)
 #define PCITEST_WRITE _IOW('P', 0x4, unsigned long)
 #define PCITEST_READ _IOW('P', 0x5, unsigned long)
diff --git a/libc/kernel/uapi/linux/perf_event.h b/libc/kernel/uapi/linux/perf_event.h
index 4b01018..16a1a2e 100644
--- a/libc/kernel/uapi/linux/perf_event.h
+++ b/libc/kernel/uapi/linux/perf_event.h
@@ -118,6 +118,7 @@
   PERF_SAMPLE_BRANCH_TYPE_SAVE_SHIFT = 16,
   PERF_SAMPLE_BRANCH_HW_INDEX_SHIFT = 17,
   PERF_SAMPLE_BRANCH_PRIV_SAVE_SHIFT = 18,
+  PERF_SAMPLE_BRANCH_COUNTERS_SHIFT = 19,
   PERF_SAMPLE_BRANCH_MAX_SHIFT
 };
 enum perf_branch_sample_type {
@@ -140,6 +141,7 @@
   PERF_SAMPLE_BRANCH_TYPE_SAVE = 1U << PERF_SAMPLE_BRANCH_TYPE_SAVE_SHIFT,
   PERF_SAMPLE_BRANCH_HW_INDEX = 1U << PERF_SAMPLE_BRANCH_HW_INDEX_SHIFT,
   PERF_SAMPLE_BRANCH_PRIV_SAVE = 1U << PERF_SAMPLE_BRANCH_PRIV_SAVE_SHIFT,
+  PERF_SAMPLE_BRANCH_COUNTERS = 1U << PERF_SAMPLE_BRANCH_COUNTERS_SHIFT,
   PERF_SAMPLE_BRANCH_MAX = 1U << PERF_SAMPLE_BRANCH_MAX_SHIFT,
 };
 enum {
@@ -502,6 +504,7 @@
   __u64 to;
   __u64 mispred : 1, predicted : 1, in_tx : 1, abort : 1, cycles : 16, type : 4, spec : 2, new_type : 4, priv : 3, reserved : 31;
 };
+#define PERF_BRANCH_ENTRY_INFO_BITS_MAX 33
 union perf_sample_weight {
   __u64 full;
 #ifdef __LITTLE_ENDIAN_BITFIELD
diff --git a/libc/kernel/uapi/linux/pidfd.h b/libc/kernel/uapi/linux/pidfd.h
index 9a49e6a..082b4a0 100644
--- a/libc/kernel/uapi/linux/pidfd.h
+++ b/libc/kernel/uapi/linux/pidfd.h
@@ -9,4 +9,8 @@
 #include <linux/types.h>
 #include <linux/fcntl.h>
 #define PIDFD_NONBLOCK O_NONBLOCK
+#define PIDFD_THREAD O_EXCL
+#define PIDFD_SIGNAL_THREAD (1UL << 0)
+#define PIDFD_SIGNAL_THREAD_GROUP (1UL << 1)
+#define PIDFD_SIGNAL_PROCESS_GROUP (1UL << 2)
 #endif
diff --git a/libc/kernel/uapi/linux/pkt_cls.h b/libc/kernel/uapi/linux/pkt_cls.h
index 8ea50d4..b402fa6 100644
--- a/libc/kernel/uapi/linux/pkt_cls.h
+++ b/libc/kernel/uapi/linux/pkt_cls.h
@@ -205,30 +205,6 @@
 #define TC_U32_EAT 8
 #define TC_U32_MAXDEPTH 8
 enum {
-  TCA_RSVP_UNSPEC,
-  TCA_RSVP_CLASSID,
-  TCA_RSVP_DST,
-  TCA_RSVP_SRC,
-  TCA_RSVP_PINFO,
-  TCA_RSVP_POLICE,
-  TCA_RSVP_ACT,
-  __TCA_RSVP_MAX
-};
-#define TCA_RSVP_MAX (__TCA_RSVP_MAX - 1)
-struct tc_rsvp_gpi {
-  __u32 key;
-  __u32 mask;
-  int offset;
-};
-struct tc_rsvp_pinfo {
-  struct tc_rsvp_gpi dpi;
-  struct tc_rsvp_gpi spi;
-  __u8 protocol;
-  __u8 tunnelid;
-  __u8 tunnelhdr;
-  __u8 pad;
-};
-enum {
   TCA_ROUTE4_UNSPEC,
   TCA_ROUTE4_CLASSID,
   TCA_ROUTE4_TO,
@@ -250,18 +226,6 @@
 };
 #define TCA_FW_MAX (__TCA_FW_MAX - 1)
 enum {
-  TCA_TCINDEX_UNSPEC,
-  TCA_TCINDEX_HASH,
-  TCA_TCINDEX_MASK,
-  TCA_TCINDEX_SHIFT,
-  TCA_TCINDEX_FALL_THROUGH,
-  TCA_TCINDEX_CLASSID,
-  TCA_TCINDEX_POLICE,
-  TCA_TCINDEX_ACT,
-  __TCA_TCINDEX_MAX
-};
-#define TCA_TCINDEX_MAX (__TCA_TCINDEX_MAX - 1)
-enum {
   FLOW_KEY_SRC,
   FLOW_KEY_DST,
   FLOW_KEY_PROTO,
diff --git a/libc/kernel/uapi/linux/pkt_sched.h b/libc/kernel/uapi/linux/pkt_sched.h
index 9047c8e..c3488c2 100644
--- a/libc/kernel/uapi/linux/pkt_sched.h
+++ b/libc/kernel/uapi/linux/pkt_sched.h
@@ -327,95 +327,6 @@
   __TCA_HFSC_MAX,
 };
 #define TCA_HFSC_MAX (__TCA_HFSC_MAX - 1)
-#define TC_CBQ_MAXPRIO 8
-#define TC_CBQ_MAXLEVEL 8
-#define TC_CBQ_DEF_EWMA 5
-struct tc_cbq_lssopt {
-  unsigned char change;
-  unsigned char flags;
-#define TCF_CBQ_LSS_BOUNDED 1
-#define TCF_CBQ_LSS_ISOLATED 2
-  unsigned char ewma_log;
-  unsigned char level;
-#define TCF_CBQ_LSS_FLAGS 1
-#define TCF_CBQ_LSS_EWMA 2
-#define TCF_CBQ_LSS_MAXIDLE 4
-#define TCF_CBQ_LSS_MINIDLE 8
-#define TCF_CBQ_LSS_OFFTIME 0x10
-#define TCF_CBQ_LSS_AVPKT 0x20
-  __u32 maxidle;
-  __u32 minidle;
-  __u32 offtime;
-  __u32 avpkt;
-};
-struct tc_cbq_wrropt {
-  unsigned char flags;
-  unsigned char priority;
-  unsigned char cpriority;
-  unsigned char __reserved;
-  __u32 allot;
-  __u32 weight;
-};
-struct tc_cbq_ovl {
-  unsigned char strategy;
-#define TC_CBQ_OVL_CLASSIC 0
-#define TC_CBQ_OVL_DELAY 1
-#define TC_CBQ_OVL_LOWPRIO 2
-#define TC_CBQ_OVL_DROP 3
-#define TC_CBQ_OVL_RCLASSIC 4
-  unsigned char priority2;
-  __u16 pad;
-  __u32 penalty;
-};
-struct tc_cbq_police {
-  unsigned char police;
-  unsigned char __res1;
-  unsigned short __res2;
-};
-struct tc_cbq_fopt {
-  __u32 split;
-  __u32 defmap;
-  __u32 defchange;
-};
-struct tc_cbq_xstats {
-  __u32 borrows;
-  __u32 overactions;
-  __s32 avgidle;
-  __s32 undertime;
-};
-enum {
-  TCA_CBQ_UNSPEC,
-  TCA_CBQ_LSSOPT,
-  TCA_CBQ_WRROPT,
-  TCA_CBQ_FOPT,
-  TCA_CBQ_OVL_STRATEGY,
-  TCA_CBQ_RATE,
-  TCA_CBQ_RTAB,
-  TCA_CBQ_POLICE,
-  __TCA_CBQ_MAX,
-};
-#define TCA_CBQ_MAX (__TCA_CBQ_MAX - 1)
-enum {
-  TCA_DSMARK_UNSPEC,
-  TCA_DSMARK_INDICES,
-  TCA_DSMARK_DEFAULT_INDEX,
-  TCA_DSMARK_SET_TC_INDEX,
-  TCA_DSMARK_MASK,
-  TCA_DSMARK_VALUE,
-  __TCA_DSMARK_MAX,
-};
-#define TCA_DSMARK_MAX (__TCA_DSMARK_MAX - 1)
-enum {
-  TCA_ATM_UNSPEC,
-  TCA_ATM_FD,
-  TCA_ATM_PTR,
-  TCA_ATM_HDR,
-  TCA_ATM_EXCESS,
-  TCA_ATM_ADDR,
-  TCA_ATM_STATE,
-  __TCA_ATM_MAX,
-};
-#define TCA_ATM_MAX (__TCA_ATM_MAX - 1)
 enum {
   TCA_NETEM_UNSPEC,
   TCA_NETEM_CORR,
diff --git a/libc/kernel/uapi/linux/psp-sev.h b/libc/kernel/uapi/linux/psp-sev.h
index ffbcf82..82fcbf1 100644
--- a/libc/kernel/uapi/linux/psp-sev.h
+++ b/libc/kernel/uapi/linux/psp-sev.h
@@ -17,6 +17,9 @@
   SEV_PEK_CERT_IMPORT,
   SEV_GET_ID,
   SEV_GET_ID2,
+  SNP_PLATFORM_STATUS,
+  SNP_COMMIT,
+  SNP_SET_CONFIG,
   SEV_MAX,
 };
 typedef enum {
@@ -47,6 +50,12 @@
   SEV_RET_RESOURCE_LIMIT,
   SEV_RET_SECURE_DATA_INVALID,
   SEV_RET_INVALID_KEY = 0x27,
+  SEV_RET_INVALID_PAGE_SIZE,
+  SEV_RET_INVALID_PAGE_STATE,
+  SEV_RET_INVALID_MDATA_ENTRY,
+  SEV_RET_INVALID_PAGE_OWNER,
+  SEV_RET_INVALID_PAGE_AEAD_OFLOW,
+  SEV_RET_RMP_INIT_REQUIRED,
   SEV_RET_MAX,
 } sev_ret_code;
 struct sev_user_data_status {
@@ -82,6 +91,28 @@
   __u64 address;
   __u32 length;
 } __attribute__((__packed__));
+struct sev_user_data_snp_status {
+  __u8 api_major;
+  __u8 api_minor;
+  __u8 state;
+  __u8 is_rmp_initialized : 1;
+  __u8 rsvd : 7;
+  __u32 build_id;
+  __u32 mask_chip_id : 1;
+  __u32 mask_chip_key : 1;
+  __u32 vlek_en : 1;
+  __u32 rsvd1 : 29;
+  __u32 guest_count;
+  __u64 current_tcb_version;
+  __u64 reported_tcb_version;
+} __attribute__((__packed__));
+struct sev_user_data_snp_config {
+  __u64 reported_tcb;
+  __u32 mask_chip_id : 1;
+  __u32 mask_chip_key : 1;
+  __u32 rsvd : 30;
+  __u8 rsvd1[52];
+} __attribute__((__packed__));
 struct sev_issue_cmd {
   __u32 cmd;
   __u64 data;
diff --git a/libc/kernel/uapi/linux/ptp_clock.h b/libc/kernel/uapi/linux/ptp_clock.h
index ca4447e..5014936 100644
--- a/libc/kernel/uapi/linux/ptp_clock.h
+++ b/libc/kernel/uapi/linux/ptp_clock.h
@@ -12,9 +12,11 @@
 #define PTP_RISING_EDGE (1 << 1)
 #define PTP_FALLING_EDGE (1 << 2)
 #define PTP_STRICT_FLAGS (1 << 3)
+#define PTP_EXT_OFFSET (1 << 4)
 #define PTP_EXTTS_EDGES (PTP_RISING_EDGE | PTP_FALLING_EDGE)
-#define PTP_EXTTS_VALID_FLAGS (PTP_ENABLE_FEATURE | PTP_RISING_EDGE | PTP_FALLING_EDGE | PTP_STRICT_FLAGS)
+#define PTP_EXTTS_VALID_FLAGS (PTP_ENABLE_FEATURE | PTP_RISING_EDGE | PTP_FALLING_EDGE | PTP_STRICT_FLAGS | PTP_EXT_OFFSET)
 #define PTP_EXTTS_V1_VALID_FLAGS (PTP_ENABLE_FEATURE | PTP_RISING_EDGE | PTP_FALLING_EDGE)
+#define PTP_EXTTS_EVENT_VALID (PTP_ENABLE_FEATURE)
 #define PTP_PEROUT_ONE_SHOT (1 << 0)
 #define PTP_PEROUT_DUTY_CYCLE (1 << 1)
 #define PTP_PEROUT_PHASE (1 << 2)
diff --git a/libc/kernel/uapi/linux/raid/md_u.h b/libc/kernel/uapi/linux/raid/md_u.h
index f5ae289..f291f64 100644
--- a/libc/kernel/uapi/linux/raid/md_u.h
+++ b/libc/kernel/uapi/linux/raid/md_u.h
@@ -57,9 +57,6 @@
   int layout;
   int chunk_size;
 } mdu_array_info_t;
-#define LEVEL_MULTIPATH (- 4)
-#define LEVEL_LINEAR (- 1)
-#define LEVEL_FAULTY (- 5)
 #define LEVEL_NONE (- 1000000)
 typedef struct mdu_disk_info_s {
   int number;
diff --git a/libc/kernel/uapi/linux/resource.h b/libc/kernel/uapi/linux/resource.h
index e64c79e..05e201b 100644
--- a/libc/kernel/uapi/linux/resource.h
+++ b/libc/kernel/uapi/linux/resource.h
@@ -6,7 +6,7 @@
  */
 #ifndef _UAPI_LINUX_RESOURCE_H
 #define _UAPI_LINUX_RESOURCE_H
-#include <linux/time.h>
+#include <linux/time_types.h>
 #include <linux/types.h>
 #define RUSAGE_SELF 0
 #define RUSAGE_CHILDREN (- 1)
diff --git a/libc/kernel/uapi/linux/rkisp1-config.h b/libc/kernel/uapi/linux/rkisp1-config.h
index ac0b5eb..d4206a0 100644
--- a/libc/kernel/uapi/linux/rkisp1-config.h
+++ b/libc/kernel/uapi/linux/rkisp1-config.h
@@ -97,6 +97,7 @@
   RKISP1_V11,
   RKISP1_V12,
   RKISP1_V13,
+  RKISP1_V_IMX8MP,
 };
 enum rkisp1_cif_isp_histogram_mode {
   RKISP1_CIF_ISP_HISTOGRAM_MODE_DISABLE,
diff --git a/libc/kernel/uapi/linux/serial.h b/libc/kernel/uapi/linux/serial.h
index adbdd1b..ed5ed66 100644
--- a/libc/kernel/uapi/linux/serial.h
+++ b/libc/kernel/uapi/linux/serial.h
@@ -6,6 +6,7 @@
  */
 #ifndef _UAPI_LINUX_SERIAL_H
 #define _UAPI_LINUX_SERIAL_H
+#include <linux/const.h>
 #include <linux/types.h>
 #include <linux/tty_flags.h>
 struct serial_struct {
@@ -79,14 +80,15 @@
 };
 struct serial_rs485 {
   __u32 flags;
-#define SER_RS485_ENABLED (1 << 0)
-#define SER_RS485_RTS_ON_SEND (1 << 1)
-#define SER_RS485_RTS_AFTER_SEND (1 << 2)
-#define SER_RS485_RX_DURING_TX (1 << 4)
-#define SER_RS485_TERMINATE_BUS (1 << 5)
-#define SER_RS485_ADDRB (1 << 6)
-#define SER_RS485_ADDR_RECV (1 << 7)
-#define SER_RS485_ADDR_DEST (1 << 8)
+#define SER_RS485_ENABLED _BITUL(0)
+#define SER_RS485_RTS_ON_SEND _BITUL(1)
+#define SER_RS485_RTS_AFTER_SEND _BITUL(2)
+#define SER_RS485_RX_DURING_TX _BITUL(4)
+#define SER_RS485_TERMINATE_BUS _BITUL(5)
+#define SER_RS485_ADDRB _BITUL(6)
+#define SER_RS485_ADDR_RECV _BITUL(7)
+#define SER_RS485_ADDR_DEST _BITUL(8)
+#define SER_RS485_MODE_RS422 _BITUL(9)
   __u32 delay_rts_before_send;
   __u32 delay_rts_after_send;
   union {
diff --git a/libc/kernel/uapi/linux/smc.h b/libc/kernel/uapi/linux/smc.h
index 4521ceb..5e75fac 100644
--- a/libc/kernel/uapi/linux/smc.h
+++ b/libc/kernel/uapi/linux/smc.h
@@ -132,6 +132,8 @@
   SMC_NLA_LGR_D_CHID,
   SMC_NLA_LGR_D_PAD,
   SMC_NLA_LGR_D_V2_COMMON,
+  SMC_NLA_LGR_D_EXT_GID,
+  SMC_NLA_LGR_D_PEER_EXT_GID,
   __SMC_NLA_LGR_D_MAX,
   SMC_NLA_LGR_D_MAX = __SMC_NLA_LGR_D_MAX - 1
 };
diff --git a/libc/kernel/uapi/linux/smc_diag.h b/libc/kernel/uapi/linux/smc_diag.h
index be540ac..b358acf 100644
--- a/libc/kernel/uapi/linux/smc_diag.h
+++ b/libc/kernel/uapi/linux/smc_diag.h
@@ -85,5 +85,7 @@
   __aligned_u64 my_gid;
   __aligned_u64 token;
   __aligned_u64 peer_token;
+  __aligned_u64 peer_gid_ext;
+  __aligned_u64 my_gid_ext;
 };
 #endif
diff --git a/libc/kernel/uapi/linux/stat.h b/libc/kernel/uapi/linux/stat.h
index 2fb7437..9974f3e 100644
--- a/libc/kernel/uapi/linux/stat.h
+++ b/libc/kernel/uapi/linux/stat.h
@@ -85,6 +85,7 @@
 #define STATX_BTIME 0x00000800U
 #define STATX_MNT_ID 0x00001000U
 #define STATX_DIOALIGN 0x00002000U
+#define STATX_MNT_ID_UNIQUE 0x00004000U
 #define STATX__RESERVED 0x80000000U
 #define STATX_ALL 0x00000fffU
 #define STATX_ATTR_COMPRESSED 0x00000004
diff --git a/libc/kernel/uapi/linux/sync_file.h b/libc/kernel/uapi/linux/sync_file.h
index 423d248..bde8c16 100644
--- a/libc/kernel/uapi/linux/sync_file.h
+++ b/libc/kernel/uapi/linux/sync_file.h
@@ -30,7 +30,12 @@
   __u32 pad;
   __u64 sync_fence_info;
 };
+struct sync_set_deadline {
+  __u64 deadline_ns;
+  __u64 pad;
+};
 #define SYNC_IOC_MAGIC '>'
 #define SYNC_IOC_MERGE _IOWR(SYNC_IOC_MAGIC, 3, struct sync_merge_data)
 #define SYNC_IOC_FILE_INFO _IOWR(SYNC_IOC_MAGIC, 4, struct sync_file_info)
+#define SYNC_IOC_SET_DEADLINE _IOW(SYNC_IOC_MAGIC, 5, struct sync_set_deadline)
 #endif
diff --git a/libc/kernel/uapi/linux/tc_act/tc_ipt.h b/libc/kernel/uapi/linux/tc_act/tc_ipt.h
deleted file mode 100644
index a2fc933..0000000
--- a/libc/kernel/uapi/linux/tc_act/tc_ipt.h
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * This file is auto-generated. Modifications will be lost.
- *
- * See https://android.googlesource.com/platform/bionic/+/master/libc/kernel/
- * for more information.
- */
-#ifndef __LINUX_TC_IPT_H
-#define __LINUX_TC_IPT_H
-#include <linux/pkt_cls.h>
-enum {
-  TCA_IPT_UNSPEC,
-  TCA_IPT_TABLE,
-  TCA_IPT_HOOK,
-  TCA_IPT_INDEX,
-  TCA_IPT_CNT,
-  TCA_IPT_TM,
-  TCA_IPT_TARG,
-  TCA_IPT_PAD,
-  __TCA_IPT_MAX
-};
-#define TCA_IPT_MAX (__TCA_IPT_MAX - 1)
-#endif
diff --git a/libc/kernel/uapi/linux/tc_act/tc_mirred.h b/libc/kernel/uapi/linux/tc_act/tc_mirred.h
index d87b74a..dc51bc7 100644
--- a/libc/kernel/uapi/linux/tc_act/tc_mirred.h
+++ b/libc/kernel/uapi/linux/tc_act/tc_mirred.h
@@ -22,6 +22,7 @@
   TCA_MIRRED_TM,
   TCA_MIRRED_PARMS,
   TCA_MIRRED_PAD,
+  TCA_MIRRED_BLOCKID,
   __TCA_MIRRED_MAX
 };
 #define TCA_MIRRED_MAX (__TCA_MIRRED_MAX - 1)
diff --git a/libc/kernel/uapi/linux/tc_act/tc_pedit.h b/libc/kernel/uapi/linux/tc_act/tc_pedit.h
index bc7cc06..9635370 100644
--- a/libc/kernel/uapi/linux/tc_act/tc_pedit.h
+++ b/libc/kernel/uapi/linux/tc_act/tc_pedit.h
@@ -53,7 +53,7 @@
   tc_gen;
   unsigned char nkeys;
   unsigned char flags;
-  struct tc_pedit_key keys[0];
+  struct tc_pedit_key keys[] __counted_by(nkeys);
 };
 #define tc_pedit tc_pedit_sel
 #endif
diff --git a/libc/kernel/uapi/linux/thp7312.h b/libc/kernel/uapi/linux/thp7312.h
new file mode 100644
index 0000000..fbd5571
--- /dev/null
+++ b/libc/kernel/uapi/linux/thp7312.h
@@ -0,0 +1,14 @@
+/*
+ * This file is auto-generated. Modifications will be lost.
+ *
+ * See https://android.googlesource.com/platform/bionic/+/master/libc/kernel/
+ * for more information.
+ */
+#ifndef __UAPI_THP7312_H_
+#define __UAPI_THP7312_H_
+#include <linux/v4l2-controls.h>
+#define V4L2_CID_THP7312_LOW_LIGHT_COMPENSATION (V4L2_CID_USER_THP7312_BASE + 0x01)
+#define V4L2_CID_THP7312_AUTO_FOCUS_METHOD (V4L2_CID_USER_THP7312_BASE + 0x02)
+#define V4L2_CID_THP7312_NOISE_REDUCTION_AUTO (V4L2_CID_USER_THP7312_BASE + 0x03)
+#define V4L2_CID_THP7312_NOISE_REDUCTION_ABSOLUTE (V4L2_CID_USER_THP7312_BASE + 0x04)
+#endif
diff --git a/libc/kernel/uapi/linux/time_types.h b/libc/kernel/uapi/linux/time_types.h
index 668f6ae..bca8698 100644
--- a/libc/kernel/uapi/linux/time_types.h
+++ b/libc/kernel/uapi/linux/time_types.h
@@ -6,6 +6,7 @@
  */
 #ifndef _UAPI_LINUX_TIME_TYPES_H
 #define _UAPI_LINUX_TIME_TYPES_H
+#include <linux/time.h>
 #include <linux/types.h>
 struct __kernel_timespec {
   __kernel_time64_t tv_sec;
diff --git a/libc/kernel/uapi/linux/ublk_cmd.h b/libc/kernel/uapi/linux/ublk_cmd.h
index d05c7c4..8e7732b 100644
--- a/libc/kernel/uapi/linux/ublk_cmd.h
+++ b/libc/kernel/uapi/linux/ublk_cmd.h
@@ -30,6 +30,7 @@
 #define UBLK_U_CMD_END_USER_RECOVERY _IOWR('u', UBLK_CMD_END_USER_RECOVERY, struct ublksrv_ctrl_cmd)
 #define UBLK_U_CMD_GET_DEV_INFO2 _IOR('u', UBLK_CMD_GET_DEV_INFO2, struct ublksrv_ctrl_cmd)
 #define UBLK_U_CMD_GET_FEATURES _IOR('u', 0x13, struct ublksrv_ctrl_cmd)
+#define UBLK_U_CMD_DEL_DEV_ASYNC _IOR('u', 0x14, struct ublksrv_ctrl_cmd)
 #define UBLK_FEATURES_LEN 8
 #define UBLK_IO_FETCH_REQ 0x20
 #define UBLK_IO_COMMIT_AND_FETCH_REQ 0x21
diff --git a/libc/kernel/uapi/linux/usb/ch9.h b/libc/kernel/uapi/linux/usb/ch9.h
index b858bac..6762773 100644
--- a/libc/kernel/uapi/linux/usb/ch9.h
+++ b/libc/kernel/uapi/linux/usb/ch9.h
@@ -286,6 +286,7 @@
 #define USB_OTG_SRP (1 << 0)
 #define USB_OTG_HNP (1 << 1)
 #define USB_OTG_ADP (1 << 2)
+#define USB_OTG_RSP (1 << 3)
 #define OTG_STS_SELECTOR 0xF000
 struct usb_debug_descriptor {
   __u8 bLength;
diff --git a/libc/kernel/uapi/linux/usb/f_accessory.h b/libc/kernel/uapi/linux/usb/f_accessory.h
deleted file mode 100644
index abd864c..0000000
--- a/libc/kernel/uapi/linux/usb/f_accessory.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * This file is auto-generated. Modifications will be lost.
- *
- * See https://android.googlesource.com/platform/bionic/+/master/libc/kernel/
- * for more information.
- */
-#ifndef _UAPI_LINUX_USB_F_ACCESSORY_H
-#define _UAPI_LINUX_USB_F_ACCESSORY_H
-#define USB_ACCESSORY_VENDOR_ID 0x18D1
-#define USB_ACCESSORY_PRODUCT_ID 0x2D00
-#define USB_ACCESSORY_ADB_PRODUCT_ID 0x2D01
-#define ACCESSORY_STRING_MANUFACTURER 0
-#define ACCESSORY_STRING_MODEL 1
-#define ACCESSORY_STRING_DESCRIPTION 2
-#define ACCESSORY_STRING_VERSION 3
-#define ACCESSORY_STRING_URI 4
-#define ACCESSORY_STRING_SERIAL 5
-#define ACCESSORY_GET_PROTOCOL 51
-#define ACCESSORY_SEND_STRING 52
-#define ACCESSORY_START 53
-#define ACCESSORY_REGISTER_HID 54
-#define ACCESSORY_UNREGISTER_HID 55
-#define ACCESSORY_SET_HID_REPORT_DESC 56
-#define ACCESSORY_SEND_HID_EVENT 57
-#define ACCESSORY_SET_AUDIO_MODE 58
-#define ACCESSORY_GET_STRING_MANUFACTURER _IOW('M', 1, char[256])
-#define ACCESSORY_GET_STRING_MODEL _IOW('M', 2, char[256])
-#define ACCESSORY_GET_STRING_DESCRIPTION _IOW('M', 3, char[256])
-#define ACCESSORY_GET_STRING_VERSION _IOW('M', 4, char[256])
-#define ACCESSORY_GET_STRING_URI _IOW('M', 5, char[256])
-#define ACCESSORY_GET_STRING_SERIAL _IOW('M', 6, char[256])
-#define ACCESSORY_IS_START_REQUESTED _IO('M', 7)
-#define ACCESSORY_GET_AUDIO_MODE _IO('M', 8)
-#endif
diff --git a/libc/kernel/uapi/linux/usb/functionfs.h b/libc/kernel/uapi/linux/usb/functionfs.h
index 889360e..095e937 100644
--- a/libc/kernel/uapi/linux/usb/functionfs.h
+++ b/libc/kernel/uapi/linux/usb/functionfs.h
@@ -59,8 +59,9 @@
 struct usb_ext_compat_desc {
   __u8 bFirstInterfaceNumber;
   __u8 Reserved1;
-  __u8 CompatibleID[8];
+  __struct_group(, IDs,, __u8 CompatibleID[8];
   __u8 SubCompatibleID[8];
+ );
   __u8 Reserved2[6];
 };
 struct usb_ext_prop_desc {
@@ -68,6 +69,12 @@
   __le32 dwPropertyDataType;
   __le16 wPropertyNameLength;
 } __attribute__((packed));
+#define USB_FFS_DMABUF_TRANSFER_MASK 0x0
+struct usb_ffs_dmabuf_transfer_req {
+  int fd;
+  __u32 flags;
+  __u64 length;
+} __attribute__((packed));
 struct usb_functionfs_strings_head {
   __le32 magic;
   __le32 length;
@@ -96,4 +103,7 @@
 #define FUNCTIONFS_INTERFACE_REVMAP _IO('g', 128)
 #define FUNCTIONFS_ENDPOINT_REVMAP _IO('g', 129)
 #define FUNCTIONFS_ENDPOINT_DESC _IOR('g', 130, struct usb_endpoint_descriptor)
+#define FUNCTIONFS_DMABUF_ATTACH _IOW('g', 131, int)
+#define FUNCTIONFS_DMABUF_DETACH _IOW('g', 132, int)
+#define FUNCTIONFS_DMABUF_TRANSFER _IOW('g', 133, struct usb_ffs_dmabuf_transfer_req)
 #endif
diff --git a/libc/kernel/uapi/linux/user_events.h b/libc/kernel/uapi/linux/user_events.h
index 7bff0b0..37bf66b 100644
--- a/libc/kernel/uapi/linux/user_events.h
+++ b/libc/kernel/uapi/linux/user_events.h
@@ -9,11 +9,13 @@
 #include <linux/types.h>
 #include <linux/ioctl.h>
 #define USER_EVENTS_SYSTEM "user_events"
+#define USER_EVENTS_MULTI_SYSTEM "user_events_multi"
 #define USER_EVENTS_PREFIX "u:"
 #define DYN_LOC(offset,size) ((size) << 16 | (offset))
 enum user_reg_flag {
   USER_EVENT_REG_PERSIST = 1U << 0,
-  USER_EVENT_REG_MAX = 1U << 1,
+  USER_EVENT_REG_MULTI_FORMAT = 1U << 1,
+  USER_EVENT_REG_MAX = 1U << 2,
 };
 struct user_reg {
   __u32 size;
diff --git a/libc/kernel/uapi/linux/userfaultfd.h b/libc/kernel/uapi/linux/userfaultfd.h
index 5eeea4e..1dc2d79 100644
--- a/libc/kernel/uapi/linux/userfaultfd.h
+++ b/libc/kernel/uapi/linux/userfaultfd.h
@@ -11,15 +11,16 @@
 #define USERFAULTFD_IOC_NEW _IO(USERFAULTFD_IOC, 0x00)
 #define UFFD_API ((__u64) 0xAA)
 #define UFFD_API_REGISTER_MODES (UFFDIO_REGISTER_MODE_MISSING | UFFDIO_REGISTER_MODE_WP | UFFDIO_REGISTER_MODE_MINOR)
-#define UFFD_API_FEATURES (UFFD_FEATURE_PAGEFAULT_FLAG_WP | UFFD_FEATURE_EVENT_FORK | UFFD_FEATURE_EVENT_REMAP | UFFD_FEATURE_EVENT_REMOVE | UFFD_FEATURE_EVENT_UNMAP | UFFD_FEATURE_MISSING_HUGETLBFS | UFFD_FEATURE_MISSING_SHMEM | UFFD_FEATURE_SIGBUS | UFFD_FEATURE_THREAD_ID | UFFD_FEATURE_MINOR_HUGETLBFS | UFFD_FEATURE_MINOR_SHMEM | UFFD_FEATURE_EXACT_ADDRESS | UFFD_FEATURE_WP_HUGETLBFS_SHMEM | UFFD_FEATURE_WP_UNPOPULATED | UFFD_FEATURE_POISON | UFFD_FEATURE_WP_ASYNC)
+#define UFFD_API_FEATURES (UFFD_FEATURE_PAGEFAULT_FLAG_WP | UFFD_FEATURE_EVENT_FORK | UFFD_FEATURE_EVENT_REMAP | UFFD_FEATURE_EVENT_REMOVE | UFFD_FEATURE_EVENT_UNMAP | UFFD_FEATURE_MISSING_HUGETLBFS | UFFD_FEATURE_MISSING_SHMEM | UFFD_FEATURE_SIGBUS | UFFD_FEATURE_THREAD_ID | UFFD_FEATURE_MINOR_HUGETLBFS | UFFD_FEATURE_MINOR_SHMEM | UFFD_FEATURE_EXACT_ADDRESS | UFFD_FEATURE_WP_HUGETLBFS_SHMEM | UFFD_FEATURE_WP_UNPOPULATED | UFFD_FEATURE_POISON | UFFD_FEATURE_WP_ASYNC | UFFD_FEATURE_MOVE)
 #define UFFD_API_IOCTLS ((__u64) 1 << _UFFDIO_REGISTER | (__u64) 1 << _UFFDIO_UNREGISTER | (__u64) 1 << _UFFDIO_API)
-#define UFFD_API_RANGE_IOCTLS ((__u64) 1 << _UFFDIO_WAKE | (__u64) 1 << _UFFDIO_COPY | (__u64) 1 << _UFFDIO_ZEROPAGE | (__u64) 1 << _UFFDIO_WRITEPROTECT | (__u64) 1 << _UFFDIO_CONTINUE | (__u64) 1 << _UFFDIO_POISON)
+#define UFFD_API_RANGE_IOCTLS ((__u64) 1 << _UFFDIO_WAKE | (__u64) 1 << _UFFDIO_COPY | (__u64) 1 << _UFFDIO_ZEROPAGE | (__u64) 1 << _UFFDIO_MOVE | (__u64) 1 << _UFFDIO_WRITEPROTECT | (__u64) 1 << _UFFDIO_CONTINUE | (__u64) 1 << _UFFDIO_POISON)
 #define UFFD_API_RANGE_IOCTLS_BASIC ((__u64) 1 << _UFFDIO_WAKE | (__u64) 1 << _UFFDIO_COPY | (__u64) 1 << _UFFDIO_WRITEPROTECT | (__u64) 1 << _UFFDIO_CONTINUE | (__u64) 1 << _UFFDIO_POISON)
 #define _UFFDIO_REGISTER (0x00)
 #define _UFFDIO_UNREGISTER (0x01)
 #define _UFFDIO_WAKE (0x02)
 #define _UFFDIO_COPY (0x03)
 #define _UFFDIO_ZEROPAGE (0x04)
+#define _UFFDIO_MOVE (0x05)
 #define _UFFDIO_WRITEPROTECT (0x06)
 #define _UFFDIO_CONTINUE (0x07)
 #define _UFFDIO_POISON (0x08)
@@ -31,6 +32,7 @@
 #define UFFDIO_WAKE _IOR(UFFDIO, _UFFDIO_WAKE, struct uffdio_range)
 #define UFFDIO_COPY _IOWR(UFFDIO, _UFFDIO_COPY, struct uffdio_copy)
 #define UFFDIO_ZEROPAGE _IOWR(UFFDIO, _UFFDIO_ZEROPAGE, struct uffdio_zeropage)
+#define UFFDIO_MOVE _IOWR(UFFDIO, _UFFDIO_MOVE, struct uffdio_move)
 #define UFFDIO_WRITEPROTECT _IOWR(UFFDIO, _UFFDIO_WRITEPROTECT, struct uffdio_writeprotect)
 #define UFFDIO_CONTINUE _IOWR(UFFDIO, _UFFDIO_CONTINUE, struct uffdio_continue)
 #define UFFDIO_POISON _IOWR(UFFDIO, _UFFDIO_POISON, struct uffdio_poison)
@@ -92,6 +94,7 @@
 #define UFFD_FEATURE_WP_UNPOPULATED (1 << 13)
 #define UFFD_FEATURE_POISON (1 << 14)
 #define UFFD_FEATURE_WP_ASYNC (1 << 15)
+#define UFFD_FEATURE_MOVE (1 << 16)
   __u64 features;
   __u64 ioctls;
 };
@@ -141,5 +144,14 @@
   __u64 mode;
   __s64 updated;
 };
+struct uffdio_move {
+  __u64 dst;
+  __u64 src;
+  __u64 len;
+#define UFFDIO_MOVE_MODE_DONTWAKE ((__u64) 1 << 0)
+#define UFFDIO_MOVE_MODE_ALLOW_SRC_HOLES ((__u64) 1 << 1)
+  __u64 mode;
+  __s64 move;
+};
 #define UFFD_USER_MODE_ONLY 1
 #endif
diff --git a/libc/kernel/uapi/linux/v4l2-controls.h b/libc/kernel/uapi/linux/v4l2-controls.h
index 90cb69d..23158dc 100644
--- a/libc/kernel/uapi/linux/v4l2-controls.h
+++ b/libc/kernel/uapi/linux/v4l2-controls.h
@@ -111,6 +111,7 @@
 #define V4L2_CID_USER_DW100_BASE (V4L2_CID_USER_BASE + 0x1190)
 #define V4L2_CID_USER_ASPEED_BASE (V4L2_CID_USER_BASE + 0x11a0)
 #define V4L2_CID_USER_NPCM_BASE (V4L2_CID_USER_BASE + 0x11b0)
+#define V4L2_CID_USER_THP7312_BASE (V4L2_CID_USER_BASE + 0x11c0)
 #define V4L2_CID_CODEC_BASE (V4L2_CTRL_CLASS_CODEC | 0x900)
 #define V4L2_CID_CODEC_CLASS (V4L2_CTRL_CLASS_CODEC | 1)
 #define V4L2_CID_MPEG_STREAM_TYPE (V4L2_CID_CODEC_BASE + 0)
diff --git a/libc/kernel/uapi/linux/v4l2-subdev.h b/libc/kernel/uapi/linux/v4l2-subdev.h
index d684a54..9caaa47 100644
--- a/libc/kernel/uapi/linux/v4l2-subdev.h
+++ b/libc/kernel/uapi/linux/v4l2-subdev.h
@@ -59,7 +59,8 @@
   __u32 pad;
   struct v4l2_fract interval;
   __u32 stream;
-  __u32 reserved[8];
+  __u32 which;
+  __u32 reserved[7];
 };
 struct v4l2_subdev_frame_interval_enum {
   __u32 index;
@@ -104,6 +105,7 @@
   __u32 reserved[6];
 };
 #define V4L2_SUBDEV_CLIENT_CAP_STREAMS (1ULL << 0)
+#define V4L2_SUBDEV_CLIENT_CAP_INTERVAL_USES_WHICH (1ULL << 1)
 struct v4l2_subdev_client_capability {
   __u64 capabilities;
 };
diff --git a/libc/kernel/uapi/linux/vdpa.h b/libc/kernel/uapi/linux/vdpa.h
index a8a9515..462d579 100644
--- a/libc/kernel/uapi/linux/vdpa.h
+++ b/libc/kernel/uapi/linux/vdpa.h
@@ -41,6 +41,22 @@
   VDPA_ATTR_DEV_VENDOR_ATTR_NAME,
   VDPA_ATTR_DEV_VENDOR_ATTR_VALUE,
   VDPA_ATTR_DEV_FEATURES,
+  VDPA_ATTR_DEV_BLK_CFG_CAPACITY,
+  VDPA_ATTR_DEV_BLK_CFG_SIZE_MAX,
+  VDPA_ATTR_DEV_BLK_CFG_BLK_SIZE,
+  VDPA_ATTR_DEV_BLK_CFG_SEG_MAX,
+  VDPA_ATTR_DEV_BLK_CFG_NUM_QUEUES,
+  VDPA_ATTR_DEV_BLK_CFG_PHY_BLK_EXP,
+  VDPA_ATTR_DEV_BLK_CFG_ALIGN_OFFSET,
+  VDPA_ATTR_DEV_BLK_CFG_MIN_IO_SIZE,
+  VDPA_ATTR_DEV_BLK_CFG_OPT_IO_SIZE,
+  VDPA_ATTR_DEV_BLK_CFG_MAX_DISCARD_SEC,
+  VDPA_ATTR_DEV_BLK_CFG_MAX_DISCARD_SEG,
+  VDPA_ATTR_DEV_BLK_CFG_DISCARD_SEC_ALIGN,
+  VDPA_ATTR_DEV_BLK_CFG_MAX_WRITE_ZEROES_SEC,
+  VDPA_ATTR_DEV_BLK_CFG_MAX_WRITE_ZEROES_SEG,
+  VDPA_ATTR_DEV_BLK_READ_ONLY,
+  VDPA_ATTR_DEV_BLK_FLUSH,
   VDPA_ATTR_MAX,
 };
 #endif
diff --git a/libc/kernel/uapi/linux/version.h b/libc/kernel/uapi/linux/version.h
index 645a2ab..1563f47 100644
--- a/libc/kernel/uapi/linux/version.h
+++ b/libc/kernel/uapi/linux/version.h
@@ -4,8 +4,8 @@
  * See https://android.googlesource.com/platform/bionic/+/master/libc/kernel/
  * for more information.
  */
-#define LINUX_VERSION_CODE 395008
+#define LINUX_VERSION_CODE 395520
 #define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + ((c) > 255 ? 255 : (c)))
 #define LINUX_VERSION_MAJOR 6
-#define LINUX_VERSION_PATCHLEVEL 7
+#define LINUX_VERSION_PATCHLEVEL 9
 #define LINUX_VERSION_SUBLEVEL 0
diff --git a/libc/kernel/uapi/linux/vesa.h b/libc/kernel/uapi/linux/vesa.h
new file mode 100644
index 0000000..1bf9946
--- /dev/null
+++ b/libc/kernel/uapi/linux/vesa.h
@@ -0,0 +1,20 @@
+/*
+ * This file is auto-generated. Modifications will be lost.
+ *
+ * See https://android.googlesource.com/platform/bionic/+/master/libc/kernel/
+ * for more information.
+ */
+#ifndef _UAPI_LINUX_VESA_H
+#define _UAPI_LINUX_VESA_H
+enum vesa_blank_mode {
+  VESA_NO_BLANKING = 0,
+#define VESA_NO_BLANKING VESA_NO_BLANKING
+  VESA_VSYNC_SUSPEND = 1,
+#define VESA_VSYNC_SUSPEND VESA_VSYNC_SUSPEND
+  VESA_HSYNC_SUSPEND = 2,
+#define VESA_HSYNC_SUSPEND VESA_HSYNC_SUSPEND
+  VESA_POWERDOWN = VESA_VSYNC_SUSPEND | VESA_HSYNC_SUSPEND,
+#define VESA_POWERDOWN VESA_POWERDOWN
+  VESA_BLANK_MAX = VESA_POWERDOWN,
+};
+#endif
diff --git a/libc/kernel/uapi/linux/vfio.h b/libc/kernel/uapi/linux/vfio.h
index 1107b21..5910e40 100644
--- a/libc/kernel/uapi/linux/vfio.h
+++ b/libc/kernel/uapi/linux/vfio.h
@@ -336,6 +336,7 @@
   VFIO_DEVICE_STATE_RUNNING_P2P = 5,
   VFIO_DEVICE_STATE_PRE_COPY = 6,
   VFIO_DEVICE_STATE_PRE_COPY_P2P = 7,
+  VFIO_DEVICE_STATE_NR,
 };
 struct vfio_precopy_info {
   __u32 argsz;
diff --git a/libc/kernel/uapi/linux/vhost.h b/libc/kernel/uapi/linux/vhost.h
index adf0af7..a93212e 100644
--- a/libc/kernel/uapi/linux/vhost.h
+++ b/libc/kernel/uapi/linux/vhost.h
@@ -55,12 +55,13 @@
 #define VHOST_VDPA_SET_CONFIG_CALL _IOW(VHOST_VIRTIO, 0x77, int)
 #define VHOST_VDPA_GET_IOVA_RANGE _IOR(VHOST_VIRTIO, 0x78, struct vhost_vdpa_iova_range)
 #define VHOST_VDPA_GET_CONFIG_SIZE _IOR(VHOST_VIRTIO, 0x79, __u32)
-#define VHOST_VDPA_GET_VQS_COUNT _IOR(VHOST_VIRTIO, 0x80, __u32)
-#define VHOST_VDPA_GET_GROUP_NUM _IOR(VHOST_VIRTIO, 0x81, __u32)
 #define VHOST_VDPA_GET_AS_NUM _IOR(VHOST_VIRTIO, 0x7A, unsigned int)
 #define VHOST_VDPA_GET_VRING_GROUP _IOWR(VHOST_VIRTIO, 0x7B, struct vhost_vring_state)
 #define VHOST_VDPA_SET_GROUP_ASID _IOW(VHOST_VIRTIO, 0x7C, struct vhost_vring_state)
 #define VHOST_VDPA_SUSPEND _IO(VHOST_VIRTIO, 0x7D)
 #define VHOST_VDPA_RESUME _IO(VHOST_VIRTIO, 0x7E)
 #define VHOST_VDPA_GET_VRING_DESC_GROUP _IOWR(VHOST_VIRTIO, 0x7F, struct vhost_vring_state)
+#define VHOST_VDPA_GET_VQS_COUNT _IOR(VHOST_VIRTIO, 0x80, __u32)
+#define VHOST_VDPA_GET_GROUP_NUM _IOR(VHOST_VIRTIO, 0x81, __u32)
+#define VHOST_VDPA_GET_VRING_SIZE _IOWR(VHOST_VIRTIO, 0x82, struct vhost_vring_state)
 #endif
diff --git a/libc/kernel/uapi/linux/videodev2.h b/libc/kernel/uapi/linux/videodev2.h
index bb98888..ed91484 100644
--- a/libc/kernel/uapi/linux/videodev2.h
+++ b/libc/kernel/uapi/linux/videodev2.h
@@ -562,6 +562,7 @@
 #define V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS (1 << 4)
 #define V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF (1 << 5)
 #define V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS (1 << 6)
+#define V4L2_BUF_CAP_SUPPORTS_MAX_NUM_BUFFERS (1 << 7)
 struct v4l2_plane {
   __u32 bytesused;
   __u32 length;
@@ -911,7 +912,7 @@
     __s64  * p_s64;
     struct v4l2_area  * p_area;
     struct v4l2_ctrl_h264_sps  * p_h264_sps;
-    struct v4l2_ctrl_h264_pps * p_h264_pps;
+    struct v4l2_ctrl_h264_pps  * p_h264_pps;
     struct v4l2_ctrl_h264_scaling_matrix  * p_h264_scaling_matrix;
     struct v4l2_ctrl_h264_pred_weights  * p_h264_pred_weights;
     struct v4l2_ctrl_h264_slice_params  * p_h264_slice_params;
@@ -932,6 +933,8 @@
     struct v4l2_ctrl_av1_tile_group_entry  * p_av1_tile_group_entry;
     struct v4l2_ctrl_av1_frame  * p_av1_frame;
     struct v4l2_ctrl_av1_film_grain  * p_av1_film_grain;
+    struct v4l2_ctrl_hdr10_cll_info  * p_hdr10_cll_info;
+    struct v4l2_ctrl_hdr10_mastering_display  * p_hdr10_mastering_display;
     void  * ptr;
   };
 } __attribute__((packed));
@@ -1429,7 +1432,8 @@
   struct v4l2_format format;
   __u32 capabilities;
   __u32 flags;
-  __u32 reserved[6];
+  __u32 max_num_buffers;
+  __u32 reserved[5];
 };
 #define VIDIOC_QUERYCAP _IOR('V', 0, struct v4l2_capability)
 #define VIDIOC_ENUM_FMT _IOWR('V', 2, struct v4l2_fmtdesc)
diff --git a/libc/kernel/uapi/linux/virtio_config.h b/libc/kernel/uapi/linux/virtio_config.h
index 520a472..021845c 100644
--- a/libc/kernel/uapi/linux/virtio_config.h
+++ b/libc/kernel/uapi/linux/virtio_config.h
@@ -14,7 +14,7 @@
 #define VIRTIO_CONFIG_S_NEEDS_RESET 0x40
 #define VIRTIO_CONFIG_S_FAILED 0x80
 #define VIRTIO_TRANSPORT_F_START 28
-#define VIRTIO_TRANSPORT_F_END 41
+#define VIRTIO_TRANSPORT_F_END 42
 #ifndef VIRTIO_CONFIG_NO_LEGACY
 #define VIRTIO_F_NOTIFY_ON_EMPTY 24
 #define VIRTIO_F_ANY_LAYOUT 27
@@ -29,4 +29,5 @@
 #define VIRTIO_F_NOTIFICATION_DATA 38
 #define VIRTIO_F_NOTIF_CONFIG_DATA 39
 #define VIRTIO_F_RING_RESET 40
+#define VIRTIO_F_ADMIN_VQ 41
 #endif
diff --git a/libc/kernel/uapi/linux/virtio_gpu.h b/libc/kernel/uapi/linux/virtio_gpu.h
index 7162226..c3f0fcc 100644
--- a/libc/kernel/uapi/linux/virtio_gpu.h
+++ b/libc/kernel/uapi/linux/virtio_gpu.h
@@ -194,6 +194,7 @@
 };
 #define VIRTIO_GPU_CAPSET_VIRGL 1
 #define VIRTIO_GPU_CAPSET_VIRGL2 2
+#define VIRTIO_GPU_CAPSET_VENUS 4
 struct virtio_gpu_get_capset_info {
   struct virtio_gpu_ctrl_hdr hdr;
   __le32 capset_index;
diff --git a/libc/kernel/uapi/linux/virtio_pci.h b/libc/kernel/uapi/linux/virtio_pci.h
index f9595bc..8921155 100644
--- a/libc/kernel/uapi/linux/virtio_pci.h
+++ b/libc/kernel/uapi/linux/virtio_pci.h
@@ -78,6 +78,8 @@
   struct virtio_pci_common_cfg cfg;
   __le16 queue_notify_data;
   __le16 queue_reset;
+  __le16 admin_queue_index;
+  __le16 admin_queue_num;
 };
 struct virtio_pci_cfg_cap {
   struct virtio_pci_cap cap;
@@ -112,5 +114,48 @@
 #define VIRTIO_PCI_COMMON_Q_USEDHI 52
 #define VIRTIO_PCI_COMMON_Q_NDATA 56
 #define VIRTIO_PCI_COMMON_Q_RESET 58
+#define VIRTIO_PCI_COMMON_ADM_Q_IDX 60
+#define VIRTIO_PCI_COMMON_ADM_Q_NUM 62
 #endif
+#define VIRTIO_ADMIN_STATUS_OK 0
+#define VIRTIO_ADMIN_CMD_LIST_QUERY 0x0
+#define VIRTIO_ADMIN_CMD_LIST_USE 0x1
+#define VIRTIO_ADMIN_GROUP_TYPE_SRIOV 0x1
+#define VIRTIO_ADMIN_CMD_LEGACY_COMMON_CFG_WRITE 0x2
+#define VIRTIO_ADMIN_CMD_LEGACY_COMMON_CFG_READ 0x3
+#define VIRTIO_ADMIN_CMD_LEGACY_DEV_CFG_WRITE 0x4
+#define VIRTIO_ADMIN_CMD_LEGACY_DEV_CFG_READ 0x5
+#define VIRTIO_ADMIN_CMD_LEGACY_NOTIFY_INFO 0x6
+struct virtio_admin_cmd_hdr {
+  __le16 opcode;
+  __le16 group_type;
+  __u8 reserved1[12];
+  __le64 group_member_id;
+};
+struct virtio_admin_cmd_status {
+  __le16 status;
+  __le16 status_qualifier;
+  __u8 reserved2[4];
+};
+struct virtio_admin_cmd_legacy_wr_data {
+  __u8 offset;
+  __u8 reserved[7];
+  __u8 registers[];
+};
+struct virtio_admin_cmd_legacy_rd_data {
+  __u8 offset;
+};
+#define VIRTIO_ADMIN_CMD_NOTIFY_INFO_FLAGS_END 0
+#define VIRTIO_ADMIN_CMD_NOTIFY_INFO_FLAGS_OWNER_DEV 0x1
+#define VIRTIO_ADMIN_CMD_NOTIFY_INFO_FLAGS_OWNER_MEM 0x2
+#define VIRTIO_ADMIN_CMD_MAX_NOTIFY_INFO 4
+struct virtio_admin_cmd_notify_info_data {
+  __u8 flags;
+  __u8 bar;
+  __u8 padding[6];
+  __le64 offset;
+};
+struct virtio_admin_cmd_notify_info_result {
+  struct virtio_admin_cmd_notify_info_data entries[VIRTIO_ADMIN_CMD_MAX_NOTIFY_INFO];
+};
 #endif
diff --git a/libc/kernel/uapi/linux/virtio_pmem.h b/libc/kernel/uapi/linux/virtio_pmem.h
index 182baf7..da0f764 100644
--- a/libc/kernel/uapi/linux/virtio_pmem.h
+++ b/libc/kernel/uapi/linux/virtio_pmem.h
@@ -9,6 +9,8 @@
 #include <linux/types.h>
 #include <linux/virtio_ids.h>
 #include <linux/virtio_config.h>
+#define VIRTIO_PMEM_F_SHMEM_REGION 0
+#define VIRTIO_PMEM_SHMEM_REGION_ID 0
 struct virtio_pmem_config {
   __le64 start;
   __le64 size;
diff --git a/libc/kernel/uapi/linux/virtio_snd.h b/libc/kernel/uapi/linux/virtio_snd.h
index e4ec8cd..7318e29 100644
--- a/libc/kernel/uapi/linux/virtio_snd.h
+++ b/libc/kernel/uapi/linux/virtio_snd.h
@@ -7,10 +7,14 @@
 #ifndef VIRTIO_SND_IF_H
 #define VIRTIO_SND_IF_H
 #include <linux/virtio_types.h>
+enum {
+  VIRTIO_SND_F_CTLS = 0
+};
 struct virtio_snd_config {
   __le32 jacks;
   __le32 streams;
   __le32 chmaps;
+  __le32 controls;
 };
 enum {
   VIRTIO_SND_VQ_CONTROL = 0,
@@ -33,10 +37,18 @@
   VIRTIO_SND_R_PCM_START,
   VIRTIO_SND_R_PCM_STOP,
   VIRTIO_SND_R_CHMAP_INFO = 0x0200,
+  VIRTIO_SND_R_CTL_INFO = 0x0300,
+  VIRTIO_SND_R_CTL_ENUM_ITEMS,
+  VIRTIO_SND_R_CTL_READ,
+  VIRTIO_SND_R_CTL_WRITE,
+  VIRTIO_SND_R_CTL_TLV_READ,
+  VIRTIO_SND_R_CTL_TLV_WRITE,
+  VIRTIO_SND_R_CTL_TLV_COMMAND,
   VIRTIO_SND_EVT_JACK_CONNECTED = 0x1000,
   VIRTIO_SND_EVT_JACK_DISCONNECTED,
   VIRTIO_SND_EVT_PCM_PERIOD_ELAPSED = 0x1100,
   VIRTIO_SND_EVT_PCM_XRUN,
+  VIRTIO_SND_EVT_CTL_NOTIFY = 0x1200,
   VIRTIO_SND_S_OK = 0x8000,
   VIRTIO_SND_S_BAD_MSG,
   VIRTIO_SND_S_NOT_SUPP,
@@ -209,4 +221,83 @@
   __u8 channels;
   __u8 positions[VIRTIO_SND_CHMAP_MAX_SIZE];
 };
+struct virtio_snd_ctl_hdr {
+  struct virtio_snd_hdr hdr;
+  __le32 control_id;
+};
+enum {
+  VIRTIO_SND_CTL_ROLE_UNDEFINED = 0,
+  VIRTIO_SND_CTL_ROLE_VOLUME,
+  VIRTIO_SND_CTL_ROLE_MUTE,
+  VIRTIO_SND_CTL_ROLE_GAIN
+};
+enum {
+  VIRTIO_SND_CTL_TYPE_BOOLEAN = 0,
+  VIRTIO_SND_CTL_TYPE_INTEGER,
+  VIRTIO_SND_CTL_TYPE_INTEGER64,
+  VIRTIO_SND_CTL_TYPE_ENUMERATED,
+  VIRTIO_SND_CTL_TYPE_BYTES,
+  VIRTIO_SND_CTL_TYPE_IEC958
+};
+enum {
+  VIRTIO_SND_CTL_ACCESS_READ = 0,
+  VIRTIO_SND_CTL_ACCESS_WRITE,
+  VIRTIO_SND_CTL_ACCESS_VOLATILE,
+  VIRTIO_SND_CTL_ACCESS_INACTIVE,
+  VIRTIO_SND_CTL_ACCESS_TLV_READ,
+  VIRTIO_SND_CTL_ACCESS_TLV_WRITE,
+  VIRTIO_SND_CTL_ACCESS_TLV_COMMAND
+};
+struct virtio_snd_ctl_info {
+  struct virtio_snd_info hdr;
+  __le32 role;
+  __le32 type;
+  __le32 access;
+  __le32 count;
+  __le32 index;
+  __u8 name[44];
+  union {
+    struct {
+      __le32 min;
+      __le32 max;
+      __le32 step;
+    } integer;
+    struct {
+      __le64 min;
+      __le64 max;
+      __le64 step;
+    } integer64;
+    struct {
+      __le32 items;
+    } enumerated;
+  } value;
+};
+struct virtio_snd_ctl_enum_item {
+  __u8 item[64];
+};
+struct virtio_snd_ctl_iec958 {
+  __u8 status[24];
+  __u8 subcode[147];
+  __u8 pad;
+  __u8 dig_subframe[4];
+};
+struct virtio_snd_ctl_value {
+  union {
+    __le32 integer[128];
+    __le64 integer64[64];
+    __le32 enumerated[128];
+    __u8 bytes[512];
+    struct virtio_snd_ctl_iec958 iec958;
+  } value;
+};
+enum {
+  VIRTIO_SND_CTL_EVT_MASK_VALUE = 0,
+  VIRTIO_SND_CTL_EVT_MASK_INFO,
+  VIRTIO_SND_CTL_EVT_MASK_TLV
+};
+struct virtio_snd_ctl_event {
+  struct virtio_snd_hdr hdr;
+  __le16 control_id;
+  __le16 mask;
+};
 #endif
diff --git a/libc/kernel/uapi/rdma/bnxt_re-abi.h b/libc/kernel/uapi/rdma/bnxt_re-abi.h
index 86e16a0..3dceafd 100644
--- a/libc/kernel/uapi/rdma/bnxt_re-abi.h
+++ b/libc/kernel/uapi/rdma/bnxt_re-abi.h
@@ -17,12 +17,20 @@
   BNXT_RE_UCNTX_CMASK_HAVE_MODE = 0x02ULL,
   BNXT_RE_UCNTX_CMASK_WC_DPI_ENABLED = 0x04ULL,
   BNXT_RE_UCNTX_CMASK_DBR_PACING_ENABLED = 0x08ULL,
+  BNXT_RE_UCNTX_CMASK_POW2_DISABLED = 0x10ULL,
+  BNXT_RE_COMP_MASK_UCNTX_HW_RETX_ENABLED = 0x40,
 };
 enum bnxt_re_wqe_mode {
   BNXT_QPLIB_WQE_MODE_STATIC = 0x00,
   BNXT_QPLIB_WQE_MODE_VARIABLE = 0x01,
   BNXT_QPLIB_WQE_MODE_INVALID = 0x02,
 };
+enum {
+  BNXT_RE_COMP_MASK_REQ_UCNTX_POW2_SUPPORT = 0x01,
+};
+struct bnxt_re_uctx_req {
+  __aligned_u64 comp_mask;
+};
 struct bnxt_re_uctx_resp {
   __u32 dev_id;
   __u32 max_qp;
@@ -45,11 +53,15 @@
   __aligned_u64 cq_va;
   __aligned_u64 cq_handle;
 };
+enum bnxt_re_cq_mask {
+  BNXT_RE_CQ_TOGGLE_PAGE_SUPPORT = 0x1,
+};
 struct bnxt_re_cq_resp {
   __u32 cqid;
   __u32 tail;
   __u32 phase;
   __u32 rsvd;
+  __aligned_u64 comp_mask;
 };
 struct bnxt_re_resize_cq_req {
   __aligned_u64 cq_va;
@@ -79,6 +91,7 @@
 enum bnxt_re_objects {
   BNXT_RE_OBJECT_ALLOC_PAGE = (1U << UVERBS_ID_NS_SHIFT),
   BNXT_RE_OBJECT_NOTIFY_DRV,
+  BNXT_RE_OBJECT_GET_TOGGLE_MEM,
 };
 enum bnxt_re_alloc_page_type {
   BNXT_RE_ALLOC_WC_PAGE = 0,
@@ -102,4 +115,23 @@
 enum bnxt_re_notify_drv_methods {
   BNXT_RE_METHOD_NOTIFY_DRV = (1U << UVERBS_ID_NS_SHIFT),
 };
+enum bnxt_re_get_toggle_mem_type {
+  BNXT_RE_CQ_TOGGLE_MEM = 0,
+  BNXT_RE_SRQ_TOGGLE_MEM,
+};
+enum bnxt_re_var_toggle_mem_attrs {
+  BNXT_RE_TOGGLE_MEM_HANDLE = (1U << UVERBS_ID_NS_SHIFT),
+  BNXT_RE_TOGGLE_MEM_TYPE,
+  BNXT_RE_TOGGLE_MEM_RES_ID,
+  BNXT_RE_TOGGLE_MEM_MMAP_PAGE,
+  BNXT_RE_TOGGLE_MEM_MMAP_OFFSET,
+  BNXT_RE_TOGGLE_MEM_MMAP_LENGTH,
+};
+enum bnxt_re_toggle_mem_attrs {
+  BNXT_RE_RELEASE_TOGGLE_MEM_HANDLE = (1U << UVERBS_ID_NS_SHIFT),
+};
+enum bnxt_re_toggle_mem_methods {
+  BNXT_RE_METHOD_GET_TOGGLE_MEM = (1U << UVERBS_ID_NS_SHIFT),
+  BNXT_RE_METHOD_RELEASE_TOGGLE_MEM,
+};
 #endif
diff --git a/libc/kernel/uapi/rdma/efa-abi.h b/libc/kernel/uapi/rdma/efa-abi.h
index c327764..2b30941 100644
--- a/libc/kernel/uapi/rdma/efa-abi.h
+++ b/libc/kernel/uapi/rdma/efa-abi.h
@@ -7,6 +7,7 @@
 #ifndef EFA_ABI_USER_H
 #define EFA_ABI_USER_H
 #include <linux/types.h>
+#include <rdma/ib_user_ioctl_cmds.h>
 #define EFA_UVERBS_ABI_VERSION 1
 enum {
   EFA_ALLOC_UCONTEXT_CMD_COMP_TX_BATCH = 1 << 0,
@@ -104,4 +105,19 @@
   __u32 max_rdma_size;
   __u32 device_caps;
 };
+enum {
+  EFA_QUERY_MR_VALIDITY_RECV_IC_ID = 1 << 0,
+  EFA_QUERY_MR_VALIDITY_RDMA_READ_IC_ID = 1 << 1,
+  EFA_QUERY_MR_VALIDITY_RDMA_RECV_IC_ID = 1 << 2,
+};
+enum efa_query_mr_attrs {
+  EFA_IB_ATTR_QUERY_MR_HANDLE = (1U << UVERBS_ID_NS_SHIFT),
+  EFA_IB_ATTR_QUERY_MR_RESP_IC_ID_VALIDITY,
+  EFA_IB_ATTR_QUERY_MR_RESP_RECV_IC_ID,
+  EFA_IB_ATTR_QUERY_MR_RESP_RDMA_READ_IC_ID,
+  EFA_IB_ATTR_QUERY_MR_RESP_RDMA_RECV_IC_ID,
+};
+enum efa_mr_methods {
+  EFA_IB_METHOD_MR_QUERY = (1U << UVERBS_ID_NS_SHIFT),
+};
 #endif
diff --git a/libc/kernel/uapi/rdma/hns-abi.h b/libc/kernel/uapi/rdma/hns-abi.h
index f9effb3..5b0f700 100644
--- a/libc/kernel/uapi/rdma/hns-abi.h
+++ b/libc/kernel/uapi/rdma/hns-abi.h
@@ -37,6 +37,15 @@
   __u32 srqn;
   __u32 cap_flags;
 };
+enum hns_roce_congest_type_flags {
+  HNS_ROCE_CREATE_QP_FLAGS_DCQCN,
+  HNS_ROCE_CREATE_QP_FLAGS_LDCP,
+  HNS_ROCE_CREATE_QP_FLAGS_HC3,
+  HNS_ROCE_CREATE_QP_FLAGS_DIP,
+};
+enum hns_roce_create_qp_comp_mask {
+  HNS_ROCE_CREATE_QP_MASK_CONGEST_TYPE = 1 << 0,
+};
 struct hns_roce_ib_create_qp {
   __aligned_u64 buf_addr;
   __aligned_u64 db_addr;
@@ -45,6 +54,9 @@
   __u8 sq_no_prefetch;
   __u8 reserved[5];
   __aligned_u64 sdb_addr;
+  __aligned_u64 comp_mask;
+  __aligned_u64 create_flags;
+  __aligned_u64 cong_type_flags;
 };
 enum hns_roce_qp_cap_flags {
   HNS_ROCE_QP_CAP_RQ_RECORD_DB = 1 << 0,
@@ -73,6 +85,8 @@
   __u32 reserved;
   __u32 config;
   __u32 max_inline_data;
+  __u8 congest_type;
+  __u8 reserved0[7];
 };
 struct hns_roce_ib_alloc_ucontext {
   __u32 config;
@@ -81,4 +95,8 @@
 struct hns_roce_ib_alloc_pd_resp {
   __u32 pdn;
 };
+struct hns_roce_ib_create_ah_resp {
+  __u8 dmac[6];
+  __u8 reserved[2];
+};
 #endif
diff --git a/libc/kernel/uapi/rdma/mlx5-abi.h b/libc/kernel/uapi/rdma/mlx5-abi.h
index dc6420b..22cf99e 100644
--- a/libc/kernel/uapi/rdma/mlx5-abi.h
+++ b/libc/kernel/uapi/rdma/mlx5-abi.h
@@ -9,6 +9,7 @@
 #include <linux/types.h>
 #include <linux/if_ether.h>
 #include <rdma/ib_user_ioctl_verbs.h>
+#include <rdma/mlx5_user_ioctl_verbs.h>
 enum {
   MLX5_QP_FLAG_SIGNATURE = 1 << 0,
   MLX5_QP_FLAG_SCATTER_CQE = 1 << 1,
@@ -186,6 +187,7 @@
   __u32 tunnel_offloads_caps;
   struct mlx5_ib_dci_streams_caps dci_streams_caps;
   __u16 reserved;
+  struct mlx5_ib_uapi_reg reg_c0;
 };
 enum mlx5_ib_create_cq_flags {
   MLX5_IB_CREATE_CQ_FLAGS_CQE_128B_PAD = 1 << 0,
diff --git a/libc/kernel/uapi/rdma/mlx5_user_ioctl_verbs.h b/libc/kernel/uapi/rdma/mlx5_user_ioctl_verbs.h
index 57fc43e..f087ee8 100644
--- a/libc/kernel/uapi/rdma/mlx5_user_ioctl_verbs.h
+++ b/libc/kernel/uapi/rdma/mlx5_user_ioctl_verbs.h
@@ -32,6 +32,7 @@
   MLX5_IB_UAPI_DM_TYPE_STEERING_SW_ICM,
   MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_SW_ICM,
   MLX5_IB_UAPI_DM_TYPE_HEADER_MODIFY_PATTERN_SW_ICM,
+  MLX5_IB_UAPI_DM_TYPE_ENCAP_SW_ICM,
 };
 enum mlx5_ib_uapi_devx_create_event_channel_flags {
   MLX5_IB_UAPI_DEVX_CR_EV_CH_FLAGS_OMIT_DATA = 1 << 0,
diff --git a/libc/kernel/uapi/regulator/regulator.h b/libc/kernel/uapi/regulator/regulator.h
new file mode 100644
index 0000000..23ce7c6
--- /dev/null
+++ b/libc/kernel/uapi/regulator/regulator.h
@@ -0,0 +1,47 @@
+/*
+ * This file is auto-generated. Modifications will be lost.
+ *
+ * See https://android.googlesource.com/platform/bionic/+/master/libc/kernel/
+ * for more information.
+ */
+#ifndef _UAPI_REGULATOR_H
+#define _UAPI_REGULATOR_H
+#include <stdint.h>
+#define REGULATOR_EVENT_UNDER_VOLTAGE 0x01
+#define REGULATOR_EVENT_OVER_CURRENT 0x02
+#define REGULATOR_EVENT_REGULATION_OUT 0x04
+#define REGULATOR_EVENT_FAIL 0x08
+#define REGULATOR_EVENT_OVER_TEMP 0x10
+#define REGULATOR_EVENT_FORCE_DISABLE 0x20
+#define REGULATOR_EVENT_VOLTAGE_CHANGE 0x40
+#define REGULATOR_EVENT_DISABLE 0x80
+#define REGULATOR_EVENT_PRE_VOLTAGE_CHANGE 0x100
+#define REGULATOR_EVENT_ABORT_VOLTAGE_CHANGE 0x200
+#define REGULATOR_EVENT_PRE_DISABLE 0x400
+#define REGULATOR_EVENT_ABORT_DISABLE 0x800
+#define REGULATOR_EVENT_ENABLE 0x1000
+#define REGULATOR_EVENT_UNDER_VOLTAGE_WARN 0x2000
+#define REGULATOR_EVENT_OVER_CURRENT_WARN 0x4000
+#define REGULATOR_EVENT_OVER_VOLTAGE_WARN 0x8000
+#define REGULATOR_EVENT_OVER_TEMP_WARN 0x10000
+#define REGULATOR_EVENT_WARN_MASK 0x1E000
+struct reg_genl_event {
+  char reg_name[32];
+  uint64_t event;
+};
+enum {
+  REG_GENL_ATTR_UNSPEC,
+  REG_GENL_ATTR_EVENT,
+  __REG_GENL_ATTR_MAX,
+};
+#define REG_GENL_ATTR_MAX (__REG_GENL_ATTR_MAX - 1)
+enum {
+  REG_GENL_CMD_UNSPEC,
+  REG_GENL_CMD_EVENT,
+  __REG_GENL_CMD_MAX,
+};
+#define REG_GENL_CMD_MAX (__REG_GENL_CMD_MAX - 1)
+#define REG_GENL_FAMILY_NAME "reg_event"
+#define REG_GENL_VERSION 0x01
+#define REG_GENL_MCAST_GROUP_NAME "reg_mc_group"
+#endif
diff --git a/libc/kernel/uapi/scsi/scsi_bsg_mpi3mr.h b/libc/kernel/uapi/scsi/scsi_bsg_mpi3mr.h
index f12c36f..d98e8fa 100644
--- a/libc/kernel/uapi/scsi/scsi_bsg_mpi3mr.h
+++ b/libc/kernel/uapi/scsi/scsi_bsg_mpi3mr.h
@@ -176,7 +176,7 @@
   __u8 mpi_reply_type;
   __u8 rsvd1;
   __u16 rsvd2;
-  __u8 reply_buf[1];
+  __u8 reply_buf[];
 };
 struct mpi3mr_buf_entry {
   __u8 buf_type;
@@ -242,6 +242,8 @@
 #define MPI3MR_NVME_DATA_FORMAT_PRP 0
 #define MPI3MR_NVME_DATA_FORMAT_SGL1 1
 #define MPI3MR_NVME_DATA_FORMAT_SGL2 2
+#define MPI3MR_NVMESGL_DATA_SEGMENT 0x00
+#define MPI3MR_NVMESGL_LAST_SEGMENT 0x03
 struct mpi3_scsi_task_mgmt_request {
   __le16 host_tag;
   __u8 ioc_use_only02;
diff --git a/libc/kernel/uapi/sound/asound.h b/libc/kernel/uapi/sound/asound.h
index 7da2fbb..b608ed5 100644
--- a/libc/kernel/uapi/sound/asound.h
+++ b/libc/kernel/uapi/sound/asound.h
@@ -92,7 +92,7 @@
 #define SNDRV_HWDEP_IOCTL_INFO _IOR('H', 0x01, struct snd_hwdep_info)
 #define SNDRV_HWDEP_IOCTL_DSP_STATUS _IOR('H', 0x02, struct snd_hwdep_dsp_status)
 #define SNDRV_HWDEP_IOCTL_DSP_LOAD _IOW('H', 0x03, struct snd_hwdep_dsp_image)
-#define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 15)
+#define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 17)
 typedef unsigned long snd_pcm_uframes_t;
 typedef signed long snd_pcm_sframes_t;
 enum {
@@ -201,7 +201,10 @@
 #endif
 typedef int __bitwise snd_pcm_subformat_t;
 #define SNDRV_PCM_SUBFORMAT_STD (( snd_pcm_subformat_t) 0)
-#define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_STD
+#define SNDRV_PCM_SUBFORMAT_MSBITS_MAX (( snd_pcm_subformat_t) 1)
+#define SNDRV_PCM_SUBFORMAT_MSBITS_20 (( snd_pcm_subformat_t) 2)
+#define SNDRV_PCM_SUBFORMAT_MSBITS_24 (( snd_pcm_subformat_t) 3)
+#define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_MSBITS_24
 #define SNDRV_PCM_INFO_MMAP 0x00000001
 #define SNDRV_PCM_INFO_MMAP_VALID 0x00000002
 #define SNDRV_PCM_INFO_DOUBLE 0x00000004
diff --git a/libc/kernel/uapi/sound/intel/avs/tokens.h b/libc/kernel/uapi/sound/intel/avs/tokens.h
index 6a8ed8a..01b20a5 100644
--- a/libc/kernel/uapi/sound/intel/avs/tokens.h
+++ b/libc/kernel/uapi/sound/intel/avs/tokens.h
@@ -15,6 +15,8 @@
   AVS_TKN_MANIFEST_NUM_MODCFGS_EXT_U32 = 6,
   AVS_TKN_MANIFEST_NUM_PPLCFGS_U32 = 7,
   AVS_TKN_MANIFEST_NUM_BINDINGS_U32 = 8,
+  AVS_TKN_MANIFEST_NUM_CONDPATH_TMPLS_U32 = 9,
+  AVS_TKN_MANIFEST_NUM_INIT_CONFIGS_U32 = 10,
   AVS_TKN_LIBRARY_ID_U32 = 101,
   AVS_TKN_LIBRARY_NAME_STRING = 102,
   AVS_TKN_AFMT_ID_U32 = 201,
@@ -89,6 +91,8 @@
   AVS_TKN_MOD_PROC_DOMAIN_U8 = 1705,
   AVS_TKN_MOD_MODCFG_EXT_ID_U32 = 1706,
   AVS_TKN_MOD_KCONTROL_ID_U32 = 1707,
+  AVS_TKN_MOD_INIT_CONFIG_NUM_IDS_U32 = 1708,
+  AVS_TKN_MOD_INIT_CONFIG_ID_U32 = 1709,
   AVS_TKN_PATH_TMPL_ID_U32 = 1801,
   AVS_TKN_PATH_ID_U32 = 1901,
   AVS_TKN_PATH_FE_FMT_ID_U32 = 1902,
@@ -97,5 +101,8 @@
   AVS_TKN_PIN_FMT_IOBS_U32 = 2202,
   AVS_TKN_PIN_FMT_AFMT_ID_U32 = 2203,
   AVS_TKN_KCONTROL_ID_U32 = 2301,
+  AVS_TKN_INIT_CONFIG_ID_U32 = 2401,
+  AVS_TKN_INIT_CONFIG_PARAM_U8 = 2402,
+  AVS_TKN_INIT_CONFIG_LENGTH_U32 = 2403,
 };
 #endif
diff --git a/libc/kernel/uapi/sound/scarlett2.h b/libc/kernel/uapi/sound/scarlett2.h
new file mode 100644
index 0000000..13e6abe
--- /dev/null
+++ b/libc/kernel/uapi/sound/scarlett2.h
@@ -0,0 +1,30 @@
+/*
+ * This file is auto-generated. Modifications will be lost.
+ *
+ * See https://android.googlesource.com/platform/bionic/+/master/libc/kernel/
+ * for more information.
+ */
+#ifndef __UAPI_SOUND_SCARLETT2_H
+#define __UAPI_SOUND_SCARLETT2_H
+#include <linux/types.h>
+#include <linux/ioctl.h>
+#define SCARLETT2_HWDEP_MAJOR 1
+#define SCARLETT2_HWDEP_MINOR 0
+#define SCARLETT2_HWDEP_SUBMINOR 0
+#define SCARLETT2_HWDEP_VERSION ((SCARLETT2_HWDEP_MAJOR << 16) | (SCARLETT2_HWDEP_MINOR << 8) | SCARLETT2_HWDEP_SUBMINOR)
+#define SCARLETT2_HWDEP_VERSION_MAJOR(v) (((v) >> 16) & 0xFF)
+#define SCARLETT2_HWDEP_VERSION_MINOR(v) (((v) >> 8) & 0xFF)
+#define SCARLETT2_HWDEP_VERSION_SUBMINOR(v) ((v) & 0xFF)
+#define SCARLETT2_IOCTL_PVERSION _IOR('S', 0x60, int)
+#define SCARLETT2_IOCTL_REBOOT _IO('S', 0x61)
+#define SCARLETT2_SEGMENT_ID_SETTINGS 0
+#define SCARLETT2_SEGMENT_ID_FIRMWARE 1
+#define SCARLETT2_SEGMENT_ID_COUNT 2
+#define SCARLETT2_IOCTL_SELECT_FLASH_SEGMENT _IOW('S', 0x62, int)
+#define SCARLETT2_IOCTL_ERASE_FLASH_SEGMENT _IO('S', 0x63)
+struct scarlett2_flash_segment_erase_progress {
+  unsigned char progress;
+  unsigned char num_blocks;
+};
+#define SCARLETT2_IOCTL_GET_ERASE_PROGRESS _IOR('S', 0x64, struct scarlett2_flash_segment_erase_progress)
+#endif
diff --git a/libc/kernel/uapi/sound/sof/tokens.h b/libc/kernel/uapi/sound/sof/tokens.h
index d57d55b..c4257d9 100644
--- a/libc/kernel/uapi/sound/sof/tokens.h
+++ b/libc/kernel/uapi/sound/sof/tokens.h
@@ -15,6 +15,7 @@
 #define SOF_TPLG_KCTL_BYTES_WO_ID 262
 #define SOF_TKN_BUF_SIZE 100
 #define SOF_TKN_BUF_CAPS 101
+#define SOF_TKN_BUF_FLAGS 102
 #define SOF_TKN_DAI_TYPE 154
 #define SOF_TKN_DAI_INDEX 155
 #define SOF_TKN_DAI_DIRECTION 156
@@ -125,4 +126,8 @@
 #define SOF_TKN_AMD_ACPI2S_RATE 1700
 #define SOF_TKN_AMD_ACPI2S_CH 1701
 #define SOF_TKN_AMD_ACPI2S_TDM_MODE 1702
+#define SOF_TKN_IMX_MICFIL_RATE 2000
+#define SOF_TKN_IMX_MICFIL_CH 2001
+#define SOF_TKN_AMD_ACP_SDW_RATE 2100
+#define SOF_TKN_AMD_ACP_SDW_CH 2101
 #endif
diff --git a/libc/kernel/uapi/xen/gntalloc.h b/libc/kernel/uapi/xen/gntalloc.h
index 02e4d47..4f0e7b8 100644
--- a/libc/kernel/uapi/xen/gntalloc.h
+++ b/libc/kernel/uapi/xen/gntalloc.h
@@ -13,7 +13,10 @@
   __u16 flags;
   __u32 count;
   __u64 index;
-  __u32 gref_ids[1];
+  union {
+    __u32 gref_ids[1];
+    __DECLARE_FLEX_ARRAY(__u32, gref_ids_flex);
+  };
 };
 #define GNTALLOC_FLAG_WRITABLE 1
 #define IOCTL_GNTALLOC_DEALLOC_GREF _IOC(_IOC_NONE, 'G', 6, sizeof(struct ioctl_gntalloc_dealloc_gref))
diff --git a/libc/libc.map.txt b/libc/libc.map.txt
index 5e9763b..f56a791 100644
--- a/libc/libc.map.txt
+++ b/libc/libc.map.txt
@@ -1341,7 +1341,7 @@
     wctrans_l; # introduced=26
 } LIBC_N;
 
-LIBC_P { # introduced=P
+LIBC_P { # introduced=28
   global:
     __freading;
     __free_hook;
@@ -1442,7 +1442,7 @@
     wcstoul_l;
 } LIBC_O;
 
-LIBC_Q { # introduced=Q
+LIBC_Q { # introduced=29
   global:
     ___tls_get_addr; # x86
     __aeabi_read_tp; # arm
@@ -1478,7 +1478,7 @@
     android_mallopt; # apex llndk
 } LIBC_P;
 
-LIBC_R { # introduced=R
+LIBC_R { # introduced=30
   global:
     __mempcpy_chk;
     __tls_get_addr; # arm64
@@ -1548,7 +1548,7 @@
     _Unwind_VRS_Set; # arm
 } LIBC_Q;
 
-LIBC_S { # introduced=S
+LIBC_S { # introduced=31
   global:
     __libc_get_static_tls_bounds;
     __libc_register_thread_exit_callback;
@@ -1563,7 +1563,7 @@
     process_madvise;
 } LIBC_R;
 
-LIBC_T { # introduced=Tiramisu
+LIBC_T { # introduced=33
   global:
     backtrace;
     backtrace_symbols;
@@ -1574,7 +1574,7 @@
     pwritev64v2;
 } LIBC_S;
 
-LIBC_U { # introduced=UpsideDownCake
+LIBC_U { # introduced=34
   global:
     __freadahead;
     close_range;
@@ -1584,7 +1584,7 @@
     posix_spawn_file_actions_addfchdir_np;
 } LIBC_T;
 
-LIBC_V { # introduced=VanillaIceCream
+LIBC_V { # introduced=35
   global:
     android_crash_detail_register;
     android_crash_detail_unregister;
@@ -1592,6 +1592,7 @@
     android_crash_detail_replace_data;
     epoll_pwait2;
     epoll_pwait2_64;
+    _Fork;
     localtime_rz;
     mbsrtowcs_l;
     mktime_z;
diff --git a/libc/malloc_debug/Config.cpp b/libc/malloc_debug/Config.cpp
index 89a7ce7..6be899d 100644
--- a/libc/malloc_debug/Config.cpp
+++ b/libc/malloc_debug/Config.cpp
@@ -187,6 +187,10 @@
         "record_allocs_file",
         {0, &Config::SetRecordAllocsFile},
     },
+    {
+        "record_allocs_on_exit",
+        {0, &Config::SetRecordAllocsOnExit},
+    },
 
     {
         "verify_pointers",
@@ -208,6 +212,10 @@
         "log_allocator_stats_on_signal",
         {LOG_ALLOCATOR_STATS_ON_SIGNAL, &Config::VerifyValueEmpty},
     },
+    {
+        "log_allocator_stats_on_exit",
+        {LOG_ALLOCATOR_STATS_ON_EXIT, &Config::VerifyValueEmpty},
+    },
 };
 
 bool Config::ParseValue(const std::string& option, const std::string& value, size_t min_value,
@@ -401,6 +409,14 @@
   return true;
 }
 
+bool Config::SetRecordAllocsOnExit(const std::string& option, const std::string& value) {
+  if (Config::VerifyValueEmpty(option, value)) {
+    record_allocs_on_exit_ = true;
+    return true;
+  }
+  return false;
+}
+
 bool Config::VerifyValueEmpty(const std::string& option, const std::string& value) {
   if (!value.empty()) {
     // This is not valid.
diff --git a/libc/malloc_debug/Config.h b/libc/malloc_debug/Config.h
index 754970f..4840d43 100644
--- a/libc/malloc_debug/Config.h
+++ b/libc/malloc_debug/Config.h
@@ -49,6 +49,7 @@
 constexpr uint64_t CHECK_UNREACHABLE_ON_SIGNAL = 0x2000;
 constexpr uint64_t BACKTRACE_SPECIFIC_SIZES = 0x4000;
 constexpr uint64_t LOG_ALLOCATOR_STATS_ON_SIGNAL = 0x8000;
+constexpr uint64_t LOG_ALLOCATOR_STATS_ON_EXIT = 0x10000;
 
 // In order to guarantee posix compliance, set the minimum alignment
 // to 8 bytes for 32 bit systems and 16 bytes for 64 bit systems.
@@ -98,6 +99,7 @@
   int record_allocs_signal() const { return record_allocs_signal_; }
   size_t record_allocs_num_entries() const { return record_allocs_num_entries_; }
   const std::string& record_allocs_file() const { return record_allocs_file_; }
+  bool record_allocs_on_exit() const { return record_allocs_on_exit_; }
 
   int check_unreachable_signal() const { return check_unreachable_signal_; }
 
@@ -139,6 +141,7 @@
 
   bool SetRecordAllocs(const std::string& option, const std::string& value);
   bool SetRecordAllocsFile(const std::string& option, const std::string& value);
+  bool SetRecordAllocsOnExit(const std::string& option, const std::string& value);
 
   bool VerifyValueEmpty(const std::string& option, const std::string& value);
 
@@ -170,6 +173,7 @@
   int record_allocs_signal_ = 0;
   size_t record_allocs_num_entries_ = 0;
   std::string record_allocs_file_;
+  bool record_allocs_on_exit_ = false;
 
   uint64_t options_ = 0;
   uint8_t fill_alloc_value_;
diff --git a/libc/malloc_debug/LogAllocatorStats.cpp b/libc/malloc_debug/LogAllocatorStats.cpp
index 6d1434e..ee6bfdf 100644
--- a/libc/malloc_debug/LogAllocatorStats.cpp
+++ b/libc/malloc_debug/LogAllocatorStats.cpp
@@ -43,13 +43,17 @@
   g_call_mallopt = true;
 }
 
+void Log() {
+  info_log("Logging allocator stats...");
+  if (mallopt(M_LOG_STATS, 0) == 0) {
+    error_log("mallopt(M_LOG_STATS, 0) call failed.");
+  }
+}
+
 void CheckIfShouldLog() {
   bool expected = true;
   if (g_call_mallopt.compare_exchange_strong(expected, false)) {
-    info_log("Logging allocator stats...");
-    if (mallopt(M_LOG_STATS, 0) == 0) {
-      error_log("mallopt(M_LOG_STATS, 0) call failed.");
-    }
+    Log();
   }
 }
 
diff --git a/libc/malloc_debug/LogAllocatorStats.h b/libc/malloc_debug/LogAllocatorStats.h
index 99e0738..ded4f94 100644
--- a/libc/malloc_debug/LogAllocatorStats.h
+++ b/libc/malloc_debug/LogAllocatorStats.h
@@ -35,6 +35,8 @@
 
 bool Initialize(const Config& config);
 
+void Log();
+
 void CheckIfShouldLog();
 
 }  // namespace LogAllocatorStats
diff --git a/libc/malloc_debug/MapData.cpp b/libc/malloc_debug/MapData.cpp
index b22c109..c58882a 100644
--- a/libc/malloc_debug/MapData.cpp
+++ b/libc/malloc_debug/MapData.cpp
@@ -34,6 +34,8 @@
 #include <stdlib.h>
 #include <string.h>
 #include <sys/mman.h>
+#include <sys/uio.h>
+#include <unistd.h>
 
 #include <vector>
 
@@ -69,148 +71,132 @@
 
   MapEntry* entry = new MapEntry(start, end, offset, name, name_len, flags);
   if (!(flags & PROT_READ)) {
-    // Any unreadable map will just get a zero load bias.
-    entry->load_bias = 0;
-    entry->init = true;
-    entry->valid = false;
+    // This will make sure that an unreadable map will prevent attempts to read
+    // elf data from the map.
+    entry->SetInvalid();
   }
   return entry;
 }
 
-template <typename T>
-static inline bool get_val(MapEntry* entry, uintptr_t addr, T* store) {
-  if (!(entry->flags & PROT_READ) || addr < entry->start || addr + sizeof(T) > entry->end) {
-    return false;
+void MapEntry::Init() {
+  if (init_) {
+    return;
   }
-  // Make sure the address is aligned properly.
-  if (addr & (sizeof(T) - 1)) {
-    return false;
-  }
-  *store = *reinterpret_cast<T*>(addr);
-  return true;
-}
+  init_ = true;
 
-static bool valid_elf(MapEntry* entry) {
-  uintptr_t addr = entry->start;
-  uintptr_t end;
-  if (__builtin_add_overflow(addr, SELFMAG, &end) || end >= entry->end) {
-    return false;
+  uintptr_t end_addr;
+  if (__builtin_add_overflow(start_, SELFMAG, &end_addr) || end_addr >= end_) {
+    return;
   }
 
-  return memcmp(reinterpret_cast<void*>(addr), ELFMAG, SELFMAG) == 0;
-}
-
-static void read_loadbias(MapEntry* entry) {
-  entry->load_bias = 0;
-  uintptr_t addr = entry->start;
   ElfW(Ehdr) ehdr;
-  if (!get_val<ElfW(Half)>(entry, addr + offsetof(ElfW(Ehdr), e_phnum), &ehdr.e_phnum)) {
-    return;
+  struct iovec src_io = {.iov_base = reinterpret_cast<void*>(start_), .iov_len = SELFMAG};
+  struct iovec dst_io = {.iov_base = ehdr.e_ident, .iov_len = SELFMAG};
+  ssize_t rc = process_vm_readv(getpid(), &dst_io, 1, &src_io, 1, 0);
+  valid_ = rc == SELFMAG && IS_ELF(ehdr);
+}
+
+uintptr_t MapEntry::GetLoadBias() {
+  if (!valid_) {
+    return 0;
   }
-  if (!get_val<ElfW(Off)>(entry, addr + offsetof(ElfW(Ehdr), e_phoff), &ehdr.e_phoff)) {
-    return;
+
+  if (load_bias_read_) {
+    return load_bias_;
   }
-  addr += ehdr.e_phoff;
+
+  load_bias_read_ = true;
+
+  ElfW(Ehdr) ehdr;
+  struct iovec src_io = {.iov_base = reinterpret_cast<void*>(start_), .iov_len = sizeof(ehdr)};
+  struct iovec dst_io = {.iov_base = &ehdr, .iov_len = sizeof(ehdr)};
+  ssize_t rc = process_vm_readv(getpid(), &dst_io, 1, &src_io, 1, 0);
+  if (rc != sizeof(ehdr)) {
+    return 0;
+  }
+
+  uintptr_t addr = start_ + ehdr.e_phoff;
   for (size_t i = 0; i < ehdr.e_phnum; i++) {
     ElfW(Phdr) phdr;
-    if (!get_val<ElfW(Word)>(entry, addr + offsetof(ElfW(Phdr), p_type), &phdr.p_type)) {
-      return;
-    }
-    if (!get_val<ElfW(Word)>(entry, addr + offsetof(ElfW(Phdr), p_flags), &phdr.p_flags)) {
-      return;
-    }
-    if (!get_val<ElfW(Off)>(entry, addr + offsetof(ElfW(Phdr), p_offset), &phdr.p_offset)) {
-      return;
+
+    src_io.iov_base = reinterpret_cast<void*>(addr);
+    src_io.iov_len = sizeof(phdr);
+    dst_io.iov_base = &phdr;
+    dst_io.iov_len = sizeof(phdr);
+    rc = process_vm_readv(getpid(), &dst_io, 1, &src_io, 1, 0);
+    if (rc != sizeof(phdr)) {
+      return 0;
     }
     if ((phdr.p_type == PT_LOAD) && (phdr.p_flags & PF_X) ) {
-      if (!get_val<ElfW(Addr)>(entry, addr + offsetof(ElfW(Phdr), p_vaddr), &phdr.p_vaddr)) {
-        return;
-      }
-      entry->load_bias = phdr.p_vaddr - phdr.p_offset;
-      return;
+      load_bias_ = phdr.p_vaddr - phdr.p_offset;
+      return load_bias_;
     }
     addr += sizeof(phdr);
   }
+  return 0;
 }
 
-static void inline init(MapEntry* entry) {
-  if (entry->init) {
-    return;
-  }
-  entry->init = true;
-  if (valid_elf(entry)) {
-    entry->valid = true;
-    read_loadbias(entry);
-  }
-}
-
-bool MapData::ReadMaps() {
+void MapData::ReadMaps() {
+  std::lock_guard<std::mutex> lock(m_);
   FILE* fp = fopen("/proc/self/maps", "re");
   if (fp == nullptr) {
-    return false;
+    return;
   }
 
+  ClearEntries();
+
   std::vector<char> buffer(1024);
   while (fgets(buffer.data(), buffer.size(), fp) != nullptr) {
     MapEntry* entry = parse_line(buffer.data());
     if (entry == nullptr) {
-      fclose(fp);
-      return false;
+      break;
     }
-
-    auto it = entries_.find(entry);
-    if (it == entries_.end()) {
-      entries_.insert(entry);
-    } else {
-      delete entry;
-    }
+    entries_.insert(entry);
   }
   fclose(fp);
-  return true;
 }
 
-MapData::~MapData() {
+void MapData::ClearEntries() {
   for (auto* entry : entries_) {
     delete entry;
   }
   entries_.clear();
 }
 
+MapData::~MapData() {
+  ClearEntries();
+}
+
 // Find the containing map info for the PC.
 const MapEntry* MapData::find(uintptr_t pc, uintptr_t* rel_pc) {
   MapEntry pc_entry(pc);
 
   std::lock_guard<std::mutex> lock(m_);
-
   auto it = entries_.find(&pc_entry);
   if (it == entries_.end()) {
-    ReadMaps();
-  }
-  it = entries_.find(&pc_entry);
-  if (it == entries_.end()) {
     return nullptr;
   }
 
   MapEntry* entry = *it;
-  init(entry);
+  entry->Init();
 
   if (rel_pc != nullptr) {
     // Need to check to see if this is a read-execute map and the read-only
     // map is the previous one.
-    if (!entry->valid && it != entries_.begin()) {
+    if (!entry->valid() && it != entries_.begin()) {
       MapEntry* prev_entry = *--it;
-      if (prev_entry->flags == PROT_READ && prev_entry->offset < entry->offset &&
-          prev_entry->name == entry->name) {
-        init(prev_entry);
+      if (prev_entry->flags() == PROT_READ && prev_entry->offset() < entry->offset() &&
+          prev_entry->name() == entry->name()) {
+        prev_entry->Init();
 
-        if (prev_entry->valid) {
-          entry->elf_start_offset = prev_entry->offset;
-          *rel_pc = pc - entry->start + entry->offset + prev_entry->load_bias;
+        if (prev_entry->valid()) {
+          entry->set_elf_start_offset(prev_entry->offset());
+          *rel_pc = pc - entry->start() + entry->offset() + prev_entry->GetLoadBias();
           return entry;
         }
       }
     }
-    *rel_pc = pc - entry->start + entry->offset + entry->load_bias;
+    *rel_pc = pc - entry->start() + entry->offset() + entry->GetLoadBias();
   }
   return entry;
 }
diff --git a/libc/malloc_debug/MapData.h b/libc/malloc_debug/MapData.h
index f2b3c1c..13bf9cb 100644
--- a/libc/malloc_debug/MapData.h
+++ b/libc/malloc_debug/MapData.h
@@ -36,26 +36,50 @@
 
 #include <platform/bionic/macros.h>
 
-struct MapEntry {
-  MapEntry(uintptr_t start, uintptr_t end, uintptr_t offset, const char* name, size_t name_len, int flags)
-      : start(start), end(end), offset(offset), name(name, name_len), flags(flags) {}
+class MapEntry {
+ public:
+  MapEntry() = default;
+  MapEntry(uintptr_t start, uintptr_t end, uintptr_t offset, const char* name, size_t name_len,
+           int flags)
+      : start_(start), end_(end), offset_(offset), name_(name, name_len), flags_(flags) {}
 
-  explicit MapEntry(uintptr_t pc) : start(pc), end(pc) {}
+  explicit MapEntry(uintptr_t pc) : start_(pc), end_(pc) {}
 
-  uintptr_t start;
-  uintptr_t end;
-  uintptr_t offset;
-  uintptr_t load_bias;
-  uintptr_t elf_start_offset = 0;
-  std::string name;
-  int flags;
-  bool init = false;
-  bool valid = false;
+  void Init();
+
+  uintptr_t GetLoadBias();
+
+  void SetInvalid() {
+    valid_ = false;
+    init_ = true;
+    load_bias_read_ = true;
+  }
+
+  bool valid() { return valid_; }
+  uintptr_t start() const { return start_; }
+  uintptr_t end() const { return end_; }
+  uintptr_t offset() const { return offset_; }
+  uintptr_t elf_start_offset() const { return elf_start_offset_; }
+  void set_elf_start_offset(uintptr_t elf_start_offset) { elf_start_offset_ = elf_start_offset; }
+  const std::string& name() const { return name_; }
+  int flags() const { return flags_; }
+
+ private:
+  uintptr_t start_;
+  uintptr_t end_;
+  uintptr_t offset_;
+  uintptr_t load_bias_ = 0;
+  uintptr_t elf_start_offset_ = 0;
+  std::string name_;
+  int flags_;
+  bool init_ = false;
+  bool valid_ = false;
+  bool load_bias_read_ = false;
 };
 
 // Ordering comparator that returns equivalence for overlapping entries
 struct compare_entries {
-  bool operator()(const MapEntry* a, const MapEntry* b) const { return a->end <= b->start; }
+  bool operator()(const MapEntry* a, const MapEntry* b) const { return a->end() <= b->start(); }
 };
 
 class MapData {
@@ -65,11 +89,15 @@
 
   const MapEntry* find(uintptr_t pc, uintptr_t* rel_pc = nullptr);
 
- private:
-  bool ReadMaps();
+  size_t NumMaps() { return entries_.size(); }
 
+  void ReadMaps();
+
+ private:
   std::mutex m_;
   std::set<MapEntry*, compare_entries> entries_;
 
+  void ClearEntries();
+
   BIONIC_DISALLOW_COPY_AND_ASSIGN(MapData);
 };
diff --git a/libc/malloc_debug/README.md b/libc/malloc_debug/README.md
index 4e39bed..750a469 100644
--- a/libc/malloc_debug/README.md
+++ b/libc/malloc_debug/README.md
@@ -456,6 +456,19 @@
 
 **NOTE**: This option is not available until the O release of Android.
 
+### record\_allocs\_on\_exit
+This option only has meaning if record\_allocs is set. It indicates that
+when the process terminates, the record file should be created
+automatically.
+
+The only caveat to this option is that when the process terminates,
+the file that will contain the records will be the normal file name
+with **.PID** appended. Where PID is the pid of the process that has
+terminated. This is to avoid cases where a number of processes exit
+at the same time and attempt to write to the same file.
+
+**NOTE**: This option is not available until the V release of Android.
+
 ### verify\_pointers
 Track all live allocations to determine if a pointer is used that does not
 exist. This option is a lightweight way to verify that all
diff --git a/libc/malloc_debug/RecordData.cpp b/libc/malloc_debug/RecordData.cpp
index 8a77170..79e051b 100644
--- a/libc/malloc_debug/RecordData.cpp
+++ b/libc/malloc_debug/RecordData.cpp
@@ -131,17 +131,30 @@
   record_obj_->WriteEntries();
 }
 
+void RecordData::WriteEntriesOnExit() {
+  if (record_obj_ == nullptr) return;
+
+  // Append the current pid to the file name to avoid multiple processes
+  // writing to the same file.
+  std::string file(record_obj_->file());
+  file += "." + std::to_string(getpid());
+  record_obj_->WriteEntries(file);
+}
+
 void RecordData::WriteEntries() {
+  WriteEntries(file_);
+}
+
+void RecordData::WriteEntries(const std::string& file) {
   std::lock_guard<std::mutex> entries_lock(entries_lock_);
   if (cur_index_ == 0) {
     info_log("No alloc entries to write.");
     return;
   }
 
-  int dump_fd =
-      open(dump_file_.c_str(), O_WRONLY | O_CREAT | O_TRUNC | O_CLOEXEC | O_NOFOLLOW, 0755);
+  int dump_fd = open(file.c_str(), O_WRONLY | O_CREAT | O_TRUNC | O_CLOEXEC | O_NOFOLLOW, 0755);
   if (dump_fd == -1) {
-    error_log("Cannot create record alloc file %s: %s", dump_file_.c_str(), strerror(errno));
+    error_log("Cannot create record alloc file %s: %s", file.c_str(), strerror(errno));
     return;
   }
 
@@ -179,7 +192,7 @@
 
   entries_.resize(config.record_allocs_num_entries());
   cur_index_ = 0U;
-  dump_file_ = config.record_allocs_file();
+  file_ = config.record_allocs_file();
 
   return true;
 }
diff --git a/libc/malloc_debug/RecordData.h b/libc/malloc_debug/RecordData.h
index a02c956..7efa1f7 100644
--- a/libc/malloc_debug/RecordData.h
+++ b/libc/malloc_debug/RecordData.h
@@ -162,19 +162,23 @@
   void AddEntry(const RecordEntry* entry);
   void AddEntryOnly(const RecordEntry* entry);
 
+  const std::string& file() { return file_; }
   pthread_key_t key() { return key_; }
 
+  static void WriteEntriesOnExit();
+
  private:
   static void WriteData(int, siginfo_t*, void*);
   static RecordData* record_obj_;
 
   void WriteEntries();
+  void WriteEntries(const std::string& file);
 
   std::mutex entries_lock_;
   pthread_key_t key_;
   std::vector<std::unique_ptr<const RecordEntry>> entries_;
   size_t cur_index_;
-  std::string dump_file_;
+  std::string file_;
 
   BIONIC_DISALLOW_COPY_AND_ASSIGN(RecordData);
 };
diff --git a/libc/malloc_debug/backtrace.cpp b/libc/malloc_debug/backtrace.cpp
index ecb3a80..6a32fca 100644
--- a/libc/malloc_debug/backtrace.cpp
+++ b/libc/malloc_debug/backtrace.cpp
@@ -50,7 +50,7 @@
 typedef struct _Unwind_Context __unwind_context;
 
 static MapData g_map_data;
-static const MapEntry* g_current_code_map = nullptr;
+static MapEntry g_current_code_map;
 
 static _Unwind_Reason_Code find_current_map(__unwind_context* context, void*) {
   uintptr_t ip = _Unwind_GetIP(context);
@@ -58,11 +58,15 @@
   if (ip == 0) {
     return _URC_END_OF_STACK;
   }
-  g_current_code_map = g_map_data.find(ip);
+  auto map = g_map_data.find(ip);
+  if (map != nullptr) {
+    g_current_code_map = *map;
+  }
   return _URC_END_OF_STACK;
 }
 
 void backtrace_startup() {
+  g_map_data.ReadMaps();
   _Unwind_Backtrace(find_current_map, nullptr);
 }
 
@@ -98,7 +102,8 @@
   }
 
   // Do not record the frames that fall in our own shared library.
-  if (g_current_code_map && (ip >= g_current_code_map->start) && ip < g_current_code_map->end) {
+  if (g_current_code_map.start() != 0 && (ip >= g_current_code_map.start()) &&
+      ip < g_current_code_map.end()) {
     return _URC_NO_REASON;
   }
 
@@ -113,6 +118,10 @@
 }
 
 std::string backtrace_string(const uintptr_t* frames, size_t frame_count) {
+  if (g_map_data.NumMaps() == 0) {
+    g_map_data.ReadMaps();
+  }
+
   std::string str;
 
   for (size_t frame_num = 0; frame_num < frame_count; frame_num++) {
@@ -130,14 +139,15 @@
     uintptr_t rel_pc = offset;
     const MapEntry* entry = g_map_data.find(frames[frame_num], &rel_pc);
 
-    const char* soname = (entry != nullptr) ? entry->name.c_str() : info.dli_fname;
+    const char* soname = (entry != nullptr) ? entry->name().c_str() : info.dli_fname;
     if (soname == nullptr) {
       soname = "<unknown>";
     }
 
     char offset_buf[128];
-    if (entry != nullptr && entry->elf_start_offset != 0) {
-      snprintf(offset_buf, sizeof(offset_buf), " (offset 0x%" PRIxPTR ")", entry->elf_start_offset);
+    if (entry != nullptr && entry->elf_start_offset() != 0) {
+      snprintf(offset_buf, sizeof(offset_buf), " (offset 0x%" PRIxPTR ")",
+               entry->elf_start_offset());
     } else {
       offset_buf[0] = '\0';
     }
@@ -167,5 +177,6 @@
 }
 
 void backtrace_log(const uintptr_t* frames, size_t frame_count) {
+  g_map_data.ReadMaps();
   error_log_string(backtrace_string(frames, frame_count).c_str());
 }
diff --git a/libc/malloc_debug/malloc_debug.cpp b/libc/malloc_debug/malloc_debug.cpp
index 3731a5d..3743852 100644
--- a/libc/malloc_debug/malloc_debug.cpp
+++ b/libc/malloc_debug/malloc_debug.cpp
@@ -70,7 +70,7 @@
 
 const MallocDispatch* g_dispatch;
 
-static __always_inline uint64_t Nanotime() {
+static inline __always_inline uint64_t Nanotime() {
   struct timespec t = {};
   clock_gettime(CLOCK_MONOTONIC, &t);
   return static_cast<uint64_t>(t.tv_sec) * 1000000000LL + t.tv_nsec;
@@ -451,12 +451,20 @@
     PointerData::LogLeaks();
   }
 
+  if ((g_debug->config().options() & RECORD_ALLOCS) && g_debug->config().record_allocs_on_exit()) {
+    RecordData::WriteEntriesOnExit();
+  }
+
   if ((g_debug->config().options() & BACKTRACE) && g_debug->config().backtrace_dump_on_exit()) {
     debug_dump_heap(android::base::StringPrintf("%s.%d.exit.txt",
                                                 g_debug->config().backtrace_dump_prefix().c_str(),
                                                 getpid()).c_str());
   }
 
+  if (g_debug->config().options() & LOG_ALLOCATOR_STATS_ON_EXIT) {
+    LogAllocatorStats::Log();
+  }
+
   backtrace_shutdown();
 
   // In order to prevent any issues of threads freeing previous pointers
diff --git a/libc/malloc_debug/tests/malloc_debug_config_tests.cpp b/libc/malloc_debug/tests/malloc_debug_config_tests.cpp
index 84c9145..d33f9cd 100644
--- a/libc/malloc_debug/tests/malloc_debug_config_tests.cpp
+++ b/libc/malloc_debug/tests/malloc_debug_config_tests.cpp
@@ -571,6 +571,25 @@
   ASSERT_STREQ("", getFakeLogPrint().c_str());
 }
 
+TEST_F(MallocDebugConfigTest, record_allocs_on_exit) {
+  ASSERT_TRUE(InitConfig("record_allocs_on_exit")) << getFakeLogPrint();
+  ASSERT_EQ(0U, config->options());
+  ASSERT_TRUE(config->record_allocs_on_exit());
+
+  ASSERT_STREQ("", getFakeLogBuf().c_str());
+  ASSERT_STREQ("", getFakeLogPrint().c_str());
+}
+
+TEST_F(MallocDebugConfigTest, record_allocs_on_exit_error) {
+  ASSERT_FALSE(InitConfig("record_allocs_on_exit=something")) << getFakeLogPrint();
+
+  ASSERT_STREQ("", getFakeLogBuf().c_str());
+  std::string log_msg(
+      "6 malloc_debug malloc_testing: value set for option 'record_allocs_on_exit' "
+      "which does not take a value\n");
+  ASSERT_STREQ((log_msg + usage_string).c_str(), getFakeLogPrint().c_str());
+}
+
 TEST_F(MallocDebugConfigTest, guard_min_error) {
   ASSERT_FALSE(InitConfig("guard=0"));
 
@@ -842,6 +861,24 @@
   ASSERT_STREQ((log_msg + usage_string).c_str(), getFakeLogPrint().c_str());
 }
 
+TEST_F(MallocDebugConfigTest, log_allocator_stats_on_exit) {
+  ASSERT_TRUE(InitConfig("log_allocator_stats_on_exit")) << getFakeLogPrint();
+  ASSERT_EQ(LOG_ALLOCATOR_STATS_ON_EXIT, config->options());
+
+  ASSERT_STREQ("", getFakeLogBuf().c_str());
+  ASSERT_STREQ("", getFakeLogPrint().c_str());
+}
+
+TEST_F(MallocDebugConfigTest, trigger_log_allocator_stats_on_exit_fail) {
+  ASSERT_FALSE(InitConfig("log_allocator_stats_on_exit=200")) << getFakeLogPrint();
+
+  ASSERT_STREQ("", getFakeLogBuf().c_str());
+  std::string log_msg(
+      "6 malloc_debug malloc_testing: value set for option 'log_allocator_stats_on_exit' "
+      "which does not take a value\n");
+  ASSERT_STREQ((log_msg + usage_string).c_str(), getFakeLogPrint().c_str());
+}
+
 TEST_F(MallocDebugConfigTest, size) {
   ASSERT_TRUE(InitConfig("backtrace_size=37")) << getFakeLogPrint();
   ASSERT_EQ(BACKTRACE_SPECIFIC_SIZES, config->options());
diff --git a/libc/malloc_debug/tests/malloc_debug_system_tests.cpp b/libc/malloc_debug/tests/malloc_debug_system_tests.cpp
index aee2572..d7a7a4f 100644
--- a/libc/malloc_debug/tests/malloc_debug_system_tests.cpp
+++ b/libc/malloc_debug/tests/malloc_debug_system_tests.cpp
@@ -77,7 +77,7 @@
       // This avoids accidentally grabbing data from a previous process with
       // the same pid.
       log_start_time_ = {};
-      logger_list* list = android_logger_list_open(LOG_ID_MAIN, ANDROID_LOG_NONBLOCK, 1000, 0);
+      logger_list* list = android_logger_list_open(LOG_ID_MAIN, ANDROID_LOG_NONBLOCK, INT_MAX, 0);
       if (list == nullptr) {
         return;
       }
@@ -111,7 +111,7 @@
       while (true) {
         // Do not use non-blocking mode so that the two threads
         // are essentially asleep and not consuming any cpu.
-        list = android_logger_list_open(log, 0, 1000, pid);
+        list = android_logger_list_open(log, 0, INT_MAX, pid);
         if (list != nullptr) {
           break;
         }
diff --git a/libc/malloc_debug/tests/malloc_debug_unit_tests.cpp b/libc/malloc_debug/tests/malloc_debug_unit_tests.cpp
index 334dada..c808dc0 100644
--- a/libc/malloc_debug/tests/malloc_debug_unit_tests.cpp
+++ b/libc/malloc_debug/tests/malloc_debug_unit_tests.cpp
@@ -185,6 +185,7 @@
 }
 
 static void VerifyRecords(std::vector<std::string>& expected, std::string& actual) {
+  ASSERT_TRUE(expected.size() != 0);
   size_t offset = 0;
   for (std::string& str : expected) {
     ASSERT_STREQ(str.c_str(), actual.substr(offset, str.size()).c_str());
@@ -425,7 +426,7 @@
   Init(
       "guard backtrace backtrace_enable_on_signal fill expand_alloc free_track leak_track "
       "record_allocs verify_pointers abort_on_error verbose check_unreachable_on_signal "
-      "log_allocator_stats_on_signal");
+      "log_allocator_stats_on_signal log_allocator_stats_on_exit");
   VerifyAllocCalls(true);
 }
 
@@ -1512,7 +1513,7 @@
 
     // Call the exit function manually.
     debug_finalize();
-    exit(0);
+    _exit(0);
   }
   ASSERT_NE(-1, pid);
   ASSERT_EQ(pid, TEMP_FAILURE_RETRY(waitpid(pid, nullptr, 0)));
@@ -1561,7 +1562,7 @@
 
     // Call the exit function manually.
     debug_finalize();
-    exit(0);
+    _exit(0);
   }
   ASSERT_NE(-1, pid);
   ASSERT_EQ(pid, TEMP_FAILURE_RETRY(waitpid(pid, nullptr, 0)));
@@ -1619,7 +1620,7 @@
 
     // Call the exit function manually.
     debug_finalize();
-    exit(0);
+    _exit(0);
   }
   ASSERT_NE(-1, pid);
   ASSERT_EQ(pid, TEMP_FAILURE_RETRY(waitpid(pid, nullptr, 0)));
@@ -2429,6 +2430,33 @@
   ASSERT_STREQ("", getFakeLogPrint().c_str());
 }
 
+TEST_F(MallocDebugTest, record_allocs_on_exit) {
+  InitRecordAllocs("record_allocs record_allocs_on_exit");
+
+  // The filename created on exit always appends the pid.
+  // Modify the variable so the file is deleted at the end of the test.
+  record_filename += '.' + std::to_string(getpid());
+
+  std::vector<std::string> expected;
+  void* ptr = debug_malloc(100);
+  expected.push_back(android::base::StringPrintf("%d: malloc %p 100", getpid(), ptr));
+  ptr = debug_malloc(200);
+  expected.push_back(android::base::StringPrintf("%d: malloc %p 200", getpid(), ptr));
+  ptr = debug_malloc(400);
+  expected.push_back(android::base::StringPrintf("%d: malloc %p 400", getpid(), ptr));
+
+  // Call the exit function manually.
+  debug_finalize();
+
+  // Read all of the contents.
+  std::string actual;
+  ASSERT_TRUE(android::base::ReadFileToString(record_filename, &actual));
+  VerifyRecords(expected, actual);
+
+  ASSERT_STREQ("", getFakeLogBuf().c_str());
+  ASSERT_STREQ("", getFakeLogPrint().c_str());
+}
+
 TEST_F(MallocDebugTest, verify_pointers) {
   Init("verify_pointers");
 
@@ -2816,6 +2844,25 @@
   }
 }
 
+TEST_F(MallocDebugTest, log_allocator_stats_on_exit) {
+  Init("log_allocator_stats_on_exit");
+
+  void* pointer = debug_malloc(110);
+  ASSERT_TRUE(pointer != nullptr);
+  debug_free(pointer);
+
+  debug_finalize();
+
+  ASSERT_STREQ("", getFakeLogBuf().c_str());
+  if (!running_with_hwasan()) {
+    // Do an exact match because the mallopt should not fail in normal operation.
+    ASSERT_STREQ("4 malloc_debug Logging allocator stats...\n", getFakeLogPrint().c_str());
+  } else {
+    // mallopt fails with hwasan, so just verify that the message is present.
+    ASSERT_MATCH(getFakeLogPrint(), "4 malloc_debug Logging allocator stats...\\n");
+  }
+}
+
 TEST_F(MallocDebugTest, backtrace_only_some_sizes_with_backtrace_size) {
   Init("leak_track backtrace backtrace_size=120");
 
diff --git a/libc/platform/bionic/malloc.h b/libc/platform/bionic/malloc.h
index a06b8ee..da85cf5 100644
--- a/libc/platform/bionic/malloc.h
+++ b/libc/platform/bionic/malloc.h
@@ -130,32 +130,55 @@
   // Worth noting, the "libc.debug.gwp_asan.*.app_default" sysprops *do not*
   // apply to system apps. They use the "libc.debug.gwp_asan.*.system_default"
   // sysprops.
-  enum Action {
-    // Enable GWP-ASan. This is used by apps that have `gwpAsanMode=always` in
-    // the manifest.
-    TURN_ON_FOR_APP,
-    // Enable GWP-ASan, but only a small percentage of the time. This is used by
-    // system processes and system apps, and we use a lottery to determine which
-    // processes have GWP-ASan enabled. This allows us to mitigate system-wide
-    // memory overhead concerns, as each GWP-ASan enabled process uses ~70KiB of
-    // extra memory.
-    TURN_ON_WITH_SAMPLING,
-    // Don't enable GWP-ASan, unless overwritten by a system property or
-    // environment variable. This is used by apps that have `gwpAsanMode=never`
-    // in the manifest. Prior to Android 14, this also was used by non-system
-    // apps that didn't specify a `gwpAsanMode` in their manifest.
-    DONT_TURN_ON_UNLESS_OVERRIDDEN,
-    // Enable GWP-ASan, but only a small percentage of the time, and enable it
-    // in the non-crashing ("recoverable") mode. In Android 14, this is used by
-    // apps that don't specify `gwpAsanMode` (or use `gwpAsanMode=default`) in
-    // their manifest. GWP-ASan will detect heap memory safety bugs in this
-    // mode, and bug reports will be created by debuggerd, however the process
-    // will recover and continue to function as if the memory safety bug wasn't
-    // detected.
-    TURN_ON_FOR_APP_SAMPLED_NON_CRASHING,
+  //
+  // In recoverable mode, GWP-ASan will detect heap memory safety bugs, and bug
+  // reports will be created by debuggerd, however the process will recover and
+  // continue to function as if the memory safety bug wasn't detected. This
+  // prevents any user-visible impact as apps and processes don't crash, and
+  // probably saves us some CPU time in restarting the process.
+  //
+  // Process sampling enables GWP-ASan, but only a small percentage of the time
+  // (~1%). This helps mitigate any recurring high-frequency problems in certain
+  // processes, as it's highly likely the next restart of said process won't
+  // have GWP-ASan. In addition, for system processes and system apps, this
+  // allows us to mitigate system-wide memory overhead concerns, as each
+  // GWP-ASan enabled process uses ~70KiB of extra memory.
+  enum Mode {
+    // Used by default for apps, or by those that have an explicit
+    // `gwpAsanMode=default` in the manifest.
+    //
+    // Result:
+    //  - Android 13 and before: GWP-ASan is not enabled.
+    //  - Android 14 and after: Enables GWP-ASan with process sampling in
+    //    recoverable mode.
+    APP_MANIFEST_DEFAULT = 3,
+    // This is used by apps that have `gwpAsanMode=always` in the manifest.
+    //
+    // Result:
+    //  - Android 14 and before: Enables GWP-ASan in non-recoverable mode,
+    //    without process sampling.
+    //  - Android 15 and after: Enables GWP-ASan in recoverable mode, without
+    //    process sampling.
+    APP_MANIFEST_ALWAYS = 0,
+    // This is used by apps that have `gwpAsanMode=never` in the manifest.
+    //
+    // Result:
+    //  - GWP-ASan is not enabled, unless it's force-enabled by a system
+    //    property or environment variable.
+    APP_MANIFEST_NEVER = 2,
+    // Used by system processes and system apps.
+    //
+    // Result:
+    //  - Android 14 and before: Enables GWP-ASan with process sampling in
+    //    non-recoverable mode.
+    //  - Android 15 and after: Enables GWP-ASan with process sampling in
+    //    recoverable mode.
+    SYSTEM_PROCESS_OR_SYSTEM_APP = 1,
+    // Next enum value = 4. Numbered non-sequentially above to preserve ABI
+    // stability, but now ordered more logically.
   };
 
-  Action desire = DONT_TURN_ON_UNLESS_OVERRIDDEN;
+  Mode mode = APP_MANIFEST_NEVER;
 } android_mallopt_gwp_asan_options_t;
 #pragma clang diagnostic pop
 // Manipulates bionic-specific handling of memory allocation APIs such as
diff --git a/libc/platform/bionic/mte.h b/libc/platform/bionic/mte.h
index 73cd821..98b3d27 100644
--- a/libc/platform/bionic/mte.h
+++ b/libc/platform/bionic/mte.h
@@ -29,8 +29,11 @@
 #pragma once
 
 #include <sys/auxv.h>
+#include <sys/mman.h>
 #include <sys/prctl.h>
 
+#include "page.h"
+
 // Note: Most PR_MTE_* constants come from the upstream kernel. This tag mask
 // allows for the hardware to provision any nonzero tag. Zero tags are reserved
 // for scudo to use for the chunk headers in order to prevent linear heap
@@ -63,6 +66,65 @@
     }
   }
 };
+
+// N.B. that this is NOT the pagesize, but 4096. This is hardcoded in the codegen.
+// See
+// https://github.com/search?q=repo%3Allvm/llvm-project%20AArch64StackTagging%3A%3AinsertBaseTaggedPointer&type=code
+constexpr size_t kStackMteRingbufferSizeMultiplier = 4096;
+
+inline size_t stack_mte_ringbuffer_size(uintptr_t size_cls) {
+  return kStackMteRingbufferSizeMultiplier * (1 << size_cls);
+}
+
+inline size_t stack_mte_ringbuffer_size_from_pointer(uintptr_t ptr) {
+  // The size in the top byte is not the size_cls, but the number of "pages" (not OS pages, but
+  // kStackMteRingbufferSizeMultiplier).
+  return kStackMteRingbufferSizeMultiplier * (ptr >> 56ULL);
+}
+
+inline uintptr_t stack_mte_ringbuffer_size_add_to_pointer(uintptr_t ptr, uintptr_t size_cls) {
+  return ptr | ((1ULL << size_cls) << 56ULL);
+}
+
+inline void* stack_mte_ringbuffer_allocate(size_t n, const char* name) {
+  if (n > 7) return nullptr;
+  // Allocation needs to be aligned to 2*size to make the fancy code-gen work.
+  // So we allocate 3*size - pagesz bytes, which will always contain size bytes
+  // aligned to 2*size, and unmap the unneeded part.
+  // See
+  // https://github.com/search?q=repo%3Allvm/llvm-project%20AArch64StackTagging%3A%3AinsertBaseTaggedPointer&type=code
+  //
+  // In the worst case, we get an allocation that is one page past the properly
+  // aligned address, in which case we have to unmap the previous
+  // 2*size - pagesz bytes. In that case, we still have size properly aligned
+  // bytes left.
+  size_t size = stack_mte_ringbuffer_size(n);
+  size_t pgsize = page_size();
+
+  size_t alloc_size = __BIONIC_ALIGN(3 * size - pgsize, pgsize);
+  void* allocation_ptr =
+      mmap(nullptr, alloc_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+  if (allocation_ptr == MAP_FAILED)
+    return nullptr;
+  uintptr_t allocation = reinterpret_cast<uintptr_t>(allocation_ptr);
+
+  size_t alignment = 2 * size;
+  uintptr_t aligned_allocation = __BIONIC_ALIGN(allocation, alignment);
+  if (allocation != aligned_allocation) {
+    munmap(reinterpret_cast<void*>(allocation), aligned_allocation - allocation);
+  }
+  if (aligned_allocation + size != allocation + alloc_size) {
+    munmap(reinterpret_cast<void*>(aligned_allocation + size),
+           (allocation + alloc_size) - (aligned_allocation + size));
+  }
+
+  if (name) {
+    prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, reinterpret_cast<void*>(aligned_allocation), size, name);
+  }
+
+  // We store the size in the top byte of the pointer (which is ignored)
+  return reinterpret_cast<void*>(stack_mte_ringbuffer_size_add_to_pointer(aligned_allocation, n));
+}
 #else
 struct ScopedDisableMTE {
   // Silence unused variable warnings in non-aarch64 builds.
diff --git a/libc/platform/bionic/page.h b/libc/platform/bionic/page.h
index 65faba4..4dbe4ba 100644
--- a/libc/platform/bionic/page.h
+++ b/libc/platform/bionic/page.h
@@ -32,11 +32,13 @@
 #endif
 }
 
-constexpr size_t max_page_size() {
+// The maximum page size supported on any Android device. As
+// of API level 35, this is limited by ART.
+constexpr size_t max_android_page_size() {
 #if defined(PAGE_SIZE)
   return PAGE_SIZE;
 #else
-  return 65536;
+  return 16384;
 #endif
 }
 
diff --git a/libc/platform/bionic/tls_defines.h b/libc/platform/bionic/tls_defines.h
index 8fe8701..06c6617 100644
--- a/libc/platform/bionic/tls_defines.h
+++ b/libc/platform/bionic/tls_defines.h
@@ -85,7 +85,8 @@
 // [1] "Addenda to, and Errata in, the ABI for the ARM Architecture". Section 3.
 // http://infocenter.arm.com/help/topic/com.arm.doc.ihi0045e/IHI0045E_ABI_addenda.pdf
 
-#define MIN_TLS_SLOT (-2)  // update this value when reserving a slot
+#define MIN_TLS_SLOT (-3)  // update this value when reserving a slot
+#define TLS_SLOT_STACK_MTE (-3)
 #define TLS_SLOT_NATIVE_BRIDGE_GUEST_STATE (-2)
 #define TLS_SLOT_BIONIC_TLS     (-1)
 #define TLS_SLOT_DTV              0
diff --git a/libc/private/WriteProtected.h b/libc/private/WriteProtected.h
index fac07cb..f269125 100644
--- a/libc/private/WriteProtected.h
+++ b/libc/private/WriteProtected.h
@@ -30,11 +30,11 @@
 template <typename T>
 union WriteProtectedContents {
   T value;
-  char padding[max_page_size()];
+  char padding[max_android_page_size()];
 
   WriteProtectedContents() = default;
   BIONIC_DISALLOW_COPY_AND_ASSIGN(WriteProtectedContents);
-} __attribute__((aligned(max_page_size())));
+} __attribute__((aligned(max_android_page_size())));
 
 // Write protected wrapper class that aligns its contents to a page boundary,
 // and sets the memory protection to be non-writable, except when being modified
@@ -42,8 +42,8 @@
 template <typename T>
 class WriteProtected {
  public:
-  static_assert(sizeof(T) < max_page_size(),
-                "WriteProtected only supports contents up to max_page_size()");
+  static_assert(sizeof(T) < max_android_page_size(),
+                "WriteProtected only supports contents up to max_android_page_size()");
 
   WriteProtected() = default;
   BIONIC_DISALLOW_COPY_AND_ASSIGN(WriteProtected);
@@ -51,36 +51,45 @@
   void initialize() {
     // Not strictly necessary, but this will hopefully segfault if we initialize
     // multiple times by accident.
-    memset(&contents, 0, sizeof(contents));
+    memset(contents_addr(), 0, sizeof(contents));
     set_protection(PROT_READ);
   }
 
   const T* operator->() {
-    return &contents.value;
+    return &contents_addr()->value;
   }
 
   const T& operator*() {
-    return contents.value;
+    return contents_addr()->value;
   }
 
   template <typename Mutator>
   void mutate(Mutator mutator) {
     set_protection(PROT_READ | PROT_WRITE);
-    mutator(&contents.value);
+    mutator(&contents_addr()->value);
     set_protection(PROT_READ);
   }
 
  private:
   WriteProtectedContents<T> contents;
 
-  void set_protection(int prot) {
+  WriteProtectedContents<T>* contents_addr() {
     auto addr = &contents;
+    // Hide the fact that we're returning the address of contents from the compiler.
+    // Otherwise it may generate code assuming alignment of 64KB even though the
+    // variable is only guaranteed to have 4KB alignment.
+    __asm__ __volatile__("" : "+r"(addr));
+    return addr;
+  }
+
+  void set_protection(int prot) {
+    auto addr = contents_addr();
 #if __has_feature(hwaddress_sanitizer)
     // The mprotect system call does not currently untag pointers, so do it
     // ourselves.
     addr = untag_address(addr);
 #endif
-    if (mprotect(reinterpret_cast<void*>(addr), max_page_size(), prot) == -1) {
+    if (mprotect(reinterpret_cast<void*>(addr), max_android_page_size(), prot) == -1) {
       async_safe_fatal("WriteProtected mprotect %x failed: %s", prot, strerror(errno));
     }
   }
diff --git a/libc/private/bionic_allocator.h b/libc/private/bionic_allocator.h
index 342fd51..9872669 100644
--- a/libc/private/bionic_allocator.h
+++ b/libc/private/bionic_allocator.h
@@ -28,13 +28,9 @@
 
 #pragma once
 
-#include <errno.h>
-#include <stdlib.h>
 #include <sys/cdefs.h>
-#include <sys/mman.h>
-#include <sys/prctl.h>
 #include <stddef.h>
-#include <unistd.h>
+#include <stdint.h>
 
 const uint32_t kSmallObjectMaxSizeLog2 = 10;
 const uint32_t kSmallObjectMinSizeLog2 = 4;
@@ -120,7 +116,8 @@
   inline void* alloc_impl(size_t align, size_t size);
   inline page_info* get_page_info_unchecked(void* ptr);
   inline page_info* get_page_info(void* ptr);
-  BionicSmallObjectAllocator* get_small_object_allocator(uint32_t type);
+  BionicSmallObjectAllocator* get_small_object_allocator_unchecked(uint32_t type);
+  BionicSmallObjectAllocator* get_small_object_allocator(page_info* pi, void* ptr);
   void initialize_allocators();
 
   BionicSmallObjectAllocator* allocators_;
diff --git a/libc/private/bionic_asm_offsets.h b/libc/private/bionic_elf_dtv_offset.h
similarity index 66%
copy from libc/private/bionic_asm_offsets.h
copy to libc/private/bionic_elf_dtv_offset.h
index e72adda..8d9f3b9 100644
--- a/libc/private/bionic_asm_offsets.h
+++ b/libc/private/bionic_elf_dtv_offset.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2023 The Android Open Source Project
+ * Copyright (C) 2024 The Android Open Source Project
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -28,6 +28,17 @@
 
 #pragma once
 
-#if defined(__aarch64__)
-#define OFFSETOF_libc_globals_memtag_stack 64
+#if defined(__riscv)
+// TLS_DTV_OFFSET is a constant used in relocation fields, defined in RISC-V ELF Specification[1]
+// The front of the TCB contains a pointer to the DTV, and each pointer in DTV
+// points to 0x800 past the start of a TLS block to make full use of the range
+// of load/store instructions, refer to [2].
+//
+// [1]: RISC-V ELF Specification.
+// https://github.com/riscv-non-isa/riscv-elf-psabi-doc/blob/master/riscv-elf.adoc#constants
+// [2]: Documentation of TLS data structures
+// https://github.com/riscv-non-isa/riscv-elf-psabi-doc/issues/53
+#define TLS_DTV_OFFSET 0x800
+#else
+#define TLS_DTV_OFFSET 0
 #endif
diff --git a/libc/private/bionic_elf_tls.h b/libc/private/bionic_elf_tls.h
index 79ffcc4..04297ad 100644
--- a/libc/private/bionic_elf_tls.h
+++ b/libc/private/bionic_elf_tls.h
@@ -34,11 +34,32 @@
 #include <stdint.h>
 #include <sys/cdefs.h>
 
+#include "bionic_elf_dtv_offset.h"
+
 __LIBC_HIDDEN__ extern _Atomic(size_t) __libc_tls_generation_copy;
 
-struct TlsSegment {
+struct TlsAlign {
+  size_t value = 1;
+  size_t skew = 0;  // p_vaddr % p_align
+
+  template <typename T>
+  static constexpr TlsAlign of_type() {
+    return TlsAlign{.value = alignof(T)};
+  }
+};
+
+struct TlsAlignedSize {
   size_t size = 0;
-  size_t alignment = 1;
+  TlsAlign align;
+
+  template <typename T>
+  static constexpr TlsAlignedSize of_type() {
+    return TlsAlignedSize{.size = sizeof(T), .align = TlsAlign::of_type<T>()};
+  }
+};
+
+struct TlsSegment {
+  TlsAlignedSize aligned_size;
   const void* init_ptr = "";    // Field is non-null even when init_size is 0.
   size_t init_size = 0;
 };
@@ -46,44 +67,50 @@
 __LIBC_HIDDEN__ bool __bionic_get_tls_segment(const ElfW(Phdr)* phdr_table, size_t phdr_count,
                                               ElfW(Addr) load_bias, TlsSegment* out);
 
-__LIBC_HIDDEN__ bool __bionic_check_tls_alignment(size_t* alignment);
+__LIBC_HIDDEN__ bool __bionic_check_tls_align(size_t align);
 
 struct StaticTlsLayout {
   constexpr StaticTlsLayout() {}
 
-private:
-  size_t offset_ = 0;
-  size_t alignment_ = 1;
-  bool overflowed_ = false;
-
-  // Offsets to various Bionic TLS structs from the beginning of static TLS.
-  size_t offset_bionic_tcb_ = SIZE_MAX;
-  size_t offset_bionic_tls_ = SIZE_MAX;
-
 public:
   size_t offset_bionic_tcb() const { return offset_bionic_tcb_; }
   size_t offset_bionic_tls() const { return offset_bionic_tls_; }
   size_t offset_thread_pointer() const;
+  size_t offset_exe() const { return offset_exe_; }
 
-  size_t size() const { return offset_; }
-  size_t alignment() const { return alignment_; }
-  bool overflowed() const { return overflowed_; }
+  size_t size() const { return cursor_; }
 
   size_t reserve_exe_segment_and_tcb(const TlsSegment* exe_segment, const char* progname);
-  void reserve_bionic_tls();
-  size_t reserve_solib_segment(const TlsSegment& segment) {
-    return reserve(segment.size, segment.alignment);
-  }
+  size_t reserve_bionic_tls();
+  size_t reserve_solib_segment(const TlsSegment& segment) { return reserve(segment.aligned_size); }
   void finish_layout();
 
-private:
-  size_t reserve(size_t size, size_t alignment);
+#if !defined(STATIC_TLS_LAYOUT_TEST)
+ private:
+#endif
+  size_t cursor_ = 0;
+  size_t align_ = 1;
+
+  // Offsets to various Bionic TLS structs from the beginning of static TLS.
+  size_t offset_bionic_tcb_ = SIZE_MAX;
+  size_t offset_bionic_tls_ = SIZE_MAX;
+
+  size_t offset_exe_ = SIZE_MAX;
+
+  struct TpAllocations {
+    size_t before;
+    size_t tp;
+    size_t after;
+  };
+
+  size_t align_cursor(TlsAlign align);
+  size_t align_cursor_unskewed(size_t align);
+  size_t reserve(TlsAlignedSize aligned_size);
+  TpAllocations reserve_tp_pair(TlsAlignedSize before, TlsAlignedSize after);
 
   template <typename T> size_t reserve_type() {
-    return reserve(sizeof(T), alignof(T));
+    return reserve(TlsAlignedSize::of_type<T>());
   }
-
-  size_t round_up_with_overflow_check(size_t value, size_t alignment);
 };
 
 static constexpr size_t kTlsGenerationNone = 0;
@@ -189,30 +216,16 @@
 };
 
 #if defined(__i386__)
-#define TLS_GET_ADDR_CCONV __attribute__((regparm(1)))
+#define TLS_GET_ADDR_CALLING_CONVENTION __attribute__((regparm(1)))
 #define TLS_GET_ADDR ___tls_get_addr
 #else
-#define TLS_GET_ADDR_CCONV
+#define TLS_GET_ADDR_CALLING_CONVENTION
 #define TLS_GET_ADDR __tls_get_addr
 #endif
 
-extern "C" void* TLS_GET_ADDR(const TlsIndex* ti) TLS_GET_ADDR_CCONV;
+extern "C" void* TLS_GET_ADDR(const TlsIndex* ti) TLS_GET_ADDR_CALLING_CONVENTION;
 
 struct bionic_tcb;
 void __free_dynamic_tls(bionic_tcb* tcb);
 void __notify_thread_exit_callbacks();
 
-#if defined(__riscv)
-// TLS_DTV_OFFSET is a constant used in relocation fields, defined in RISC-V ELF Specification[1]
-// The front of the TCB contains a pointer to the DTV, and each pointer in DTV
-// points to 0x800 past the start of a TLS block to make full use of the range
-// of load/store instructions, refer to [2].
-//
-// [1]: RISC-V ELF Specification.
-// https://github.com/riscv-non-isa/riscv-elf-psabi-doc/blob/master/riscv-elf.adoc#constants
-// [2]: Documentation of TLS data structures
-// https://github.com/riscv-non-isa/riscv-elf-psabi-doc/issues/53
-#define TLS_DTV_OFFSET 0x800
-#else
-#define TLS_DTV_OFFSET 0
-#endif
diff --git a/libc/private/bionic_globals.h b/libc/private/bionic_globals.h
index 6f1e389..a1bebda 100644
--- a/libc/private/bionic_globals.h
+++ b/libc/private/bionic_globals.h
@@ -38,7 +38,6 @@
 
 #include "private/WriteProtected.h"
 #include "private/bionic_allocator.h"
-#include "private/bionic_asm_offsets.h"
 #include "private/bionic_elf_tls.h"
 #include "private/bionic_fdsan.h"
 #include "private/bionic_malloc_dispatch.h"
@@ -48,7 +47,6 @@
   vdso_entry vdso[VDSO_END];
   long setjmp_cookie;
   uintptr_t heap_pointer_tag;
-  _Atomic(bool) memtag_stack;
   _Atomic(bool) decay_time_enabled;
   _Atomic(bool) memtag;
 
@@ -77,11 +75,24 @@
   bool memtag_stack;
 };
 
-#ifdef __aarch64__
-static_assert(OFFSETOF_libc_globals_memtag_stack == offsetof(libc_globals, memtag_stack));
-#endif
-
 __LIBC_HIDDEN__ extern WriteProtected<libc_globals> __libc_globals;
+// These cannot be in __libc_globals, because we cannot access the
+// WriteProtected in a thread-safe way.
+// See b/328256432.
+//
+// __libc_memtag_stack says whether stack MTE is enabled on the process, i.e.
+// whether the stack pages are mapped with PROT_MTE. This is always false if
+// MTE is disabled for the process (i.e. libc_globals.memtag is false).
+__LIBC_HIDDEN__ extern _Atomic(bool) __libc_memtag_stack;
+// __libc_memtag_stack_abi says whether the process contains any code that was
+// compiled with memtag-stack. This is true even if the process does not have
+// MTE enabled (e.g. because it was overridden using MEMTAG_OPTIONS, or because
+// MTE is disabled for the device).
+// Code compiled with memtag-stack needs a stack history buffer in
+// TLS_SLOT_STACK_MTE, because the codegen will emit an unconditional
+// (to keep the code branchless) write to it.
+// Protected by g_heap_creation_lock.
+__LIBC_HIDDEN__ extern bool __libc_memtag_stack_abi;
 
 struct abort_msg_t;
 struct crash_detail_page_t;
@@ -135,7 +146,9 @@
   size_t scudo_stack_depot_size = 0;
 
   HeapTaggingLevel initial_heap_tagging_level = M_HEAP_TAGGING_LEVEL_NONE;
+  // See comments for __libc_memtag_stack / __libc_memtag_stack_abi above.
   bool initial_memtag_stack = false;
+  bool initial_memtag_stack_abi = false;
   int64_t heap_tagging_upgrade_timer_sec = 0;
 
   void (*memtag_stack_dlopen_callback)() = nullptr;
diff --git a/libc/system_properties/Android.bp b/libc/system_properties/Android.bp
index d45a2e3..16ea73f 100644
--- a/libc/system_properties/Android.bp
+++ b/libc/system_properties/Android.bp
@@ -11,7 +11,10 @@
 
 cc_library_static {
     name: "libsystemproperties",
-    defaults: ["libc_defaults"],
+    defaults: [
+        "libc_defaults",
+        "large_system_property_node_defaults",
+    ],
     native_bridge_supported: true,
     srcs: [
         "context_node.cpp",
@@ -54,3 +57,28 @@
         "libasync_safe",
     ],
 }
+
+soong_config_module_type {
+    name: "large_system_property_node_cc_defaults",
+    module_type: "cc_defaults",
+    config_namespace: "bionic",
+    bool_variables: [
+        "large_system_property_node",
+    ],
+    properties: [
+        "cflags",
+    ],
+}
+
+soong_config_bool_variable {
+    name: "large_system_property_node",
+}
+
+large_system_property_node_cc_defaults {
+    name: "large_system_property_node_defaults",
+    soong_config_variables: {
+        large_system_property_node: {
+            cflags: ["-DLARGE_SYSTEM_PROPERTY_NODE=1"]
+        }
+    }
+}
diff --git a/libc/system_properties/prop_area.cpp b/libc/system_properties/prop_area.cpp
index 4668eed..9b153ca 100644
--- a/libc/system_properties/prop_area.cpp
+++ b/libc/system_properties/prop_area.cpp
@@ -41,7 +41,11 @@
 
 #include <async_safe/log.h>
 
+#ifdef LARGE_SYSTEM_PROPERTY_NODE
+constexpr size_t PA_SIZE = 1024 * 1024;
+#else
 constexpr size_t PA_SIZE = 128 * 1024;
+#endif
 constexpr uint32_t PROP_AREA_MAGIC = 0x504f5250;
 constexpr uint32_t PROP_AREA_VERSION = 0xfc6ed0ab;
 
@@ -335,8 +339,7 @@
 
   uint_least32_t left_offset = atomic_load_explicit(&trie->left, memory_order_relaxed);
   if (left_offset != 0) {
-    const int err = foreach_property(to_prop_trie_node(&trie->left), propfn, cookie);
-    if (err < 0) return false;
+    if (!foreach_property(to_prop_trie_node(&trie->left), propfn, cookie)) return false;
   }
   uint_least32_t prop_offset = atomic_load_explicit(&trie->prop, memory_order_relaxed);
   if (prop_offset != 0) {
@@ -346,13 +349,11 @@
   }
   uint_least32_t children_offset = atomic_load_explicit(&trie->children, memory_order_relaxed);
   if (children_offset != 0) {
-    const int err = foreach_property(to_prop_trie_node(&trie->children), propfn, cookie);
-    if (err < 0) return false;
+    if (!foreach_property(to_prop_trie_node(&trie->children), propfn, cookie)) return false;
   }
   uint_least32_t right_offset = atomic_load_explicit(&trie->right, memory_order_relaxed);
   if (right_offset != 0) {
-    const int err = foreach_property(to_prop_trie_node(&trie->right), propfn, cookie);
-    if (err < 0) return false;
+    if (!foreach_property(to_prop_trie_node(&trie->right), propfn, cookie)) return false;
   }
 
   return true;
@@ -367,6 +368,6 @@
   return find_property(root_node(), name, namelen, value, valuelen, true);
 }
 
-bool prop_area::foreach (void (*propfn)(const prop_info* pi, void* cookie), void* cookie) {
+bool prop_area::foreach(void (*propfn)(const prop_info* pi, void* cookie), void* cookie) {
   return foreach_property(root_node(), propfn, cookie);
 }
diff --git a/libc/system_properties/system_properties.cpp b/libc/system_properties/system_properties.cpp
index 9dd5e35..e0d38a8 100644
--- a/libc/system_properties/system_properties.cpp
+++ b/libc/system_properties/system_properties.cpp
@@ -120,14 +120,18 @@
     return false;
   }
 
-  auto* appcompat_contexts = new (appcompat_override_contexts_data_) ContextsSerialized();
   appcompat_filename_ = PropertiesFilename(properties_filename_.c_str(), "appcompat_override");
-  if (!appcompat_contexts->Initialize(true, appcompat_filename_.c_str(), fsetxattr_failed,
-                                      load_default_path)) {
-    appcompat_override_contexts_ = nullptr;
-    return false;
+  appcompat_override_contexts_ = nullptr;
+  if (access(appcompat_filename_.c_str(), F_OK) != -1) {
+    auto* appcompat_contexts = new (appcompat_override_contexts_data_) ContextsSerialized();
+    if (!appcompat_contexts->Initialize(true, appcompat_filename_.c_str(), fsetxattr_failed,
+                                        load_default_path)) {
+      // The appcompat folder exists, but initializing it failed
+      return false;
+    } else {
+      appcompat_override_contexts_ = appcompat_contexts;
+    }
   }
-  appcompat_override_contexts_ = appcompat_contexts;
 
   initialized_ = true;
   return true;
@@ -333,31 +337,42 @@
 
 int SystemProperties::Add(const char* name, unsigned int namelen, const char* value,
                           unsigned int valuelen) {
-  if (valuelen >= PROP_VALUE_MAX && !is_read_only(name)) {
+  if (namelen < 1) {
+    async_safe_format_log(ANDROID_LOG_ERROR, "libc",
+                          "__system_property_add failed: name length 0");
     return -1;
   }
 
-  if (namelen < 1) {
+  if (valuelen >= PROP_VALUE_MAX && !is_read_only(name)) {
+    async_safe_format_log(ANDROID_LOG_ERROR, "libc",
+                          "__system_property_add failed: \"%s\" value too long: %d >= PROP_VALUE_MAX",
+                          name, valuelen);
     return -1;
   }
 
   if (!initialized_) {
+    async_safe_format_log(ANDROID_LOG_ERROR, "libc",
+                          "__system_property_add failed: properties not initialized");
     return -1;
   }
 
   prop_area* serial_pa = contexts_->GetSerialPropArea();
   if (serial_pa == nullptr) {
+    async_safe_format_log(ANDROID_LOG_ERROR, "libc",
+                          "__system_property_add failed: property area not found");
     return -1;
   }
 
   prop_area* pa = contexts_->GetPropAreaForName(name);
   if (!pa) {
-    async_safe_format_log(ANDROID_LOG_ERROR, "libc", "Access denied adding property \"%s\"", name);
+    async_safe_format_log(ANDROID_LOG_ERROR, "libc",
+                          "__system_property_add failed: access denied for \"%s\"", name);
     return -1;
   }
 
-  bool ret = pa->add(name, namelen, value, valuelen);
-  if (!ret) {
+  if (!pa->add(name, namelen, value, valuelen)) {
+    async_safe_format_log(ANDROID_LOG_ERROR, "libc",
+                          "__system_property_add failed: add failed for \"%s\"", name);
     return -1;
   }
 
diff --git a/libc/tools/generate_notice.py b/libc/tools/generate_notice.py
index 69d2d00..c998e32 100755
--- a/libc/tools/generate_notice.py
+++ b/libc/tools/generate_notice.py
@@ -109,8 +109,6 @@
         line = re.sub(r"^ \* ", "", line)
         line = line.replace("** ", "")
         line = line.replace("# ", "")
-        if "SPDX-License-Identifier:" in line:
-            continue
         if line.startswith("++Copyright++"):
             continue
         line = line.replace("--Copyright--", "")
diff --git a/libc/tools/gensyscalls.py b/libc/tools/gensyscalls.py
index 8c457c8..d7afe2a 100755
--- a/libc/tools/gensyscalls.py
+++ b/libc/tools/gensyscalls.py
@@ -27,7 +27,7 @@
 # ARM assembler templates for each syscall stub
 #
 
-arm_eabi_call_default = syscall_stub_header + """\
+arm_call_default = syscall_stub_header + """\
     mov     ip, r7
     .cfi_register r7, ip
     ldr     r7, =%(__NR_name)s
@@ -41,7 +41,7 @@
 END(%(func)s)
 """
 
-arm_eabi_call_long = syscall_stub_header + """\
+arm_call_long = syscall_stub_header + """\
     mov     ip, sp
     stmfd   sp!, {r4, r5, r6, r7}
     .cfi_def_cfa_offset 16
@@ -230,11 +230,11 @@
     return stub
 
 
-def arm_eabi_genstub(syscall):
+def arm_genstub(syscall):
     num_regs = count_arm_param_registers(syscall["params"])
     if num_regs > 4:
-        return arm_eabi_call_long % syscall
-    return arm_eabi_call_default % syscall
+        return arm_call_long % syscall
+    return arm_call_default % syscall
 
 
 def arm64_genstub(syscall):
@@ -456,7 +456,7 @@
         syscall["__NR_name"] = make__NR_name(syscall["name"])
 
         if "arm" in syscall:
-            syscall["asm-arm"] = add_footer(32, arm_eabi_genstub(syscall), syscall)
+            syscall["asm-arm"] = add_footer(32, arm_genstub(syscall), syscall)
 
         if "arm64" in syscall:
             syscall["asm-arm64"] = add_footer(64, arm64_genstub(syscall), syscall)
diff --git a/libc/upstream-openbsd/android/include/openbsd-compat.h b/libc/upstream-openbsd/android/include/openbsd-compat.h
index 8e6f87d..cbc52b5 100644
--- a/libc/upstream-openbsd/android/include/openbsd-compat.h
+++ b/libc/upstream-openbsd/android/include/openbsd-compat.h
@@ -42,23 +42,8 @@
 
 #define PROTO_NORMAL(x)
 
-/* OpenBSD's <ctype.h> uses these names, which conflicted with stlport.
- * Additionally, we changed the numeric/digit type from N to D for libcxx.
- */
-#define _U _CTYPE_U
-#define _L _CTYPE_L
-#define _N _CTYPE_D
-#define _S _CTYPE_S
-#define _P _CTYPE_P
-#define _C _CTYPE_C
-#define _X _CTYPE_X
-#define _B _CTYPE_B
-
-/* OpenBSD has this, but we can't really implement it correctly on Linux. */
-#define issetugid() 0
-
 #if !defined(ANDROID_HOST_MUSL)
-#define explicit_bzero(p, s) memset(p, 0, s)
+#define explicit_bzero(p, s) memset_explicit(p, 0, s)
 #endif
 
 #if defined(ANDROID_HOST_MUSL)
diff --git a/libc/upstream-openbsd/lib/libc/crypt/arc4random.c b/libc/upstream-openbsd/lib/libc/crypt/arc4random.c
index 8a4ecc9..0737cf3 100644
--- a/libc/upstream-openbsd/lib/libc/crypt/arc4random.c
+++ b/libc/upstream-openbsd/lib/libc/crypt/arc4random.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: arc4random.c,v 1.54 2015/09/13 08:31:47 guenther Exp $	*/
+/*	$OpenBSD: arc4random.c,v 1.58 2022/07/31 13:41:45 tb Exp $	*/
 
 /*
  * Copyright (c) 1996, David Mazieres <dm@uun.org>
@@ -49,6 +49,8 @@
 #define BLOCKSZ	64
 #define RSBUFSZ	(16*BLOCKSZ)
 
+#define REKEY_BASE	(1024*1024) /* NB. should be a power of 2 */
+
 /* Marked MAP_INHERIT_ZERO, so zero'd out in fork children. */
 static struct _rs {
 	size_t		rs_have;	/* valid bytes at end of rs_buf */
@@ -78,7 +80,7 @@
 			abort();
 	}
 
-	chacha_keysetup(&rsx->rs_chacha, buf, KEYSZ * 8, 0);
+	chacha_keysetup(&rsx->rs_chacha, buf, KEYSZ * 8);
 	chacha_ivsetup(&rsx->rs_chacha, buf + KEYSZ);
 }
 
@@ -86,6 +88,7 @@
 _rs_stir(void)
 {
 	u_char rnd[KEYSZ + IVSZ];
+	uint32_t rekey_fuzz = 0;
 
 	if (getentropy(rnd, sizeof rnd) == -1)
 		_getentropy_fail();
@@ -100,7 +103,10 @@
 	rs->rs_have = 0;
 	memset(rsx->rs_buf, 0, sizeof(rsx->rs_buf));
 
-	rs->rs_count = 1600000;
+	/* rekey interval should not be predictable */
+	chacha_encrypt_bytes(&rsx->rs_chacha, (uint8_t *)&rekey_fuzz,
+	    (uint8_t *)&rekey_fuzz, sizeof(rekey_fuzz));
+	rs->rs_count = REKEY_BASE + (rekey_fuzz % REKEY_BASE);
 }
 
 static inline void
diff --git a/libc/upstream-openbsd/lib/libc/crypt/chacha_private.h b/libc/upstream-openbsd/lib/libc/crypt/chacha_private.h
index 7c3680f..b0427b6 100644
--- a/libc/upstream-openbsd/lib/libc/crypt/chacha_private.h
+++ b/libc/upstream-openbsd/lib/libc/crypt/chacha_private.h
@@ -4,7 +4,7 @@
 Public domain.
 */
 
-/* $OpenBSD: chacha_private.h,v 1.2 2013/10/04 07:02:27 djm Exp $ */
+/* $OpenBSD: chacha_private.h,v 1.3 2022/02/28 21:56:29 dtucker Exp $ */
 
 typedef unsigned char u8;
 typedef unsigned int u32;
@@ -52,7 +52,7 @@
 static const char tau[16] = "expand 16-byte k";
 
 static void
-chacha_keysetup(chacha_ctx *x,const u8 *k,u32 kbits,u32 ivbits)
+chacha_keysetup(chacha_ctx *x,const u8 *k,u32 kbits)
 {
   const char *constants;
 
diff --git a/libc/upstream-openbsd/lib/libc/gen/ctype_.c b/libc/upstream-openbsd/lib/libc/gen/ctype_.c
index 8972244..9742c9f 100644
--- a/libc/upstream-openbsd/lib/libc/gen/ctype_.c
+++ b/libc/upstream-openbsd/lib/libc/gen/ctype_.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ctype_.c,v 1.12 2015/09/19 04:02:21 guenther Exp $ */
+/*	$OpenBSD: ctype_.c,v 1.13 2024/02/04 13:03:18 jca Exp $ */
 /*
  * Copyright (c) 1989 The Regents of the University of California.
  * All rights reserved.
@@ -36,6 +36,16 @@
 #include <ctype.h>
 #include "ctype_private.h"
 
+/* Shorter names for the defines provided by <ctype.h> */
+#define	_U	_CTYPE_U
+#define	_L	_CTYPE_L
+#define	_N	_CTYPE_N
+#define	_S	_CTYPE_S
+#define	_P	_CTYPE_P
+#define	_C	_CTYPE_C
+#define	_X	_CTYPE_X
+#define	_B	_CTYPE_B
+
 const char _C_ctype_[1 + CTYPE_NUM_CHARS] = {
 	0,
 	_C,	_C,	_C,	_C,	_C,	_C,	_C,	_C,
diff --git a/libc/upstream-openbsd/lib/libc/net/htonl.c b/libc/upstream-openbsd/lib/libc/net/htonl.c
index 6ee6e7e..58bfb46 100644
--- a/libc/upstream-openbsd/lib/libc/net/htonl.c
+++ b/libc/upstream-openbsd/lib/libc/net/htonl.c
@@ -1,6 +1,5 @@
-/*	$OpenBSD: htonl.c,v 1.7 2014/07/21 01:51:10 guenther Exp $ */
+/*	$OpenBSD: htonl.c,v 1.8 2024/04/15 14:30:48 naddy Exp $ */
 /*
- * Written by J.T. Conklin <jtc@netbsd.org>.
  * Public domain.
  */
 
@@ -9,13 +8,8 @@
 
 #undef htonl
 
-u_int32_t
-htonl(u_int32_t x)
+uint32_t
+htonl(uint32_t x)
 {
-#if BYTE_ORDER == LITTLE_ENDIAN
-	u_char *s = (u_char *)&x;
-	return (u_int32_t)(s[0] << 24 | s[1] << 16 | s[2] << 8 | s[3]);
-#else
-	return x;
-#endif
+	return htobe32(x);
 }
diff --git a/libc/upstream-openbsd/lib/libc/net/htons.c b/libc/upstream-openbsd/lib/libc/net/htons.c
index f48d91e..28b13ce 100644
--- a/libc/upstream-openbsd/lib/libc/net/htons.c
+++ b/libc/upstream-openbsd/lib/libc/net/htons.c
@@ -1,6 +1,5 @@
-/*	$OpenBSD: htons.c,v 1.9 2014/07/21 01:51:10 guenther Exp $ */
+/*	$OpenBSD: htons.c,v 1.10 2024/04/15 14:30:48 naddy Exp $ */
 /*
- * Written by J.T. Conklin <jtc@netbsd.org>.
  * Public domain.
  */
 
@@ -9,13 +8,8 @@
 
 #undef htons
 
-u_int16_t
-htons(u_int16_t x)
+uint16_t
+htons(uint16_t x)
 {
-#if BYTE_ORDER == LITTLE_ENDIAN
-	u_char *s = (u_char *) &x;
-	return (u_int16_t)(s[0] << 8 | s[1]);
-#else
-	return x;
-#endif
+	return htobe16(x);
 }
diff --git a/libc/upstream-openbsd/lib/libc/net/ntohl.c b/libc/upstream-openbsd/lib/libc/net/ntohl.c
index 0d05bac..7592398 100644
--- a/libc/upstream-openbsd/lib/libc/net/ntohl.c
+++ b/libc/upstream-openbsd/lib/libc/net/ntohl.c
@@ -1,6 +1,5 @@
-/*	$OpenBSD: ntohl.c,v 1.7 2014/07/21 01:51:10 guenther Exp $ */
+/*	$OpenBSD: ntohl.c,v 1.8 2024/04/15 14:30:48 naddy Exp $ */
 /*
- * Written by J.T. Conklin <jtc@netbsd.org>.
  * Public domain.
  */
 
@@ -9,13 +8,8 @@
 
 #undef ntohl
 
-u_int32_t
-ntohl(u_int32_t x)
+uint32_t
+ntohl(uint32_t x)
 {
-#if BYTE_ORDER == LITTLE_ENDIAN
-	u_char *s = (u_char *)&x;
-	return (u_int32_t)(s[0] << 24 | s[1] << 16 | s[2] << 8 | s[3]);
-#else
-	return x;
-#endif
+	return be32toh(x);
 }
diff --git a/libc/upstream-openbsd/lib/libc/net/ntohs.c b/libc/upstream-openbsd/lib/libc/net/ntohs.c
index b5ea361..ef22ea3 100644
--- a/libc/upstream-openbsd/lib/libc/net/ntohs.c
+++ b/libc/upstream-openbsd/lib/libc/net/ntohs.c
@@ -1,6 +1,5 @@
-/*	$OpenBSD: ntohs.c,v 1.9 2014/07/21 01:51:10 guenther Exp $ */
+/*	$OpenBSD: ntohs.c,v 1.10 2024/04/15 14:30:48 naddy Exp $ */
 /*
- * Written by J.T. Conklin <jtc@netbsd.org>.
  * Public domain.
  */
 
@@ -9,13 +8,8 @@
 
 #undef ntohs
 
-u_int16_t
-ntohs(u_int16_t x)
+uint16_t
+ntohs(uint16_t x)
 {
-#if BYTE_ORDER == LITTLE_ENDIAN
-	u_char *s = (u_char *) &x;
-	return (u_int16_t)(s[0] << 8 | s[1]);
-#else
-	return x;
-#endif
+	return be16toh(x);
 }
diff --git a/libc/upstream-openbsd/lib/libc/stdio/fvwrite.c b/libc/upstream-openbsd/lib/libc/stdio/fvwrite.c
index d83de88..d615245 100644
--- a/libc/upstream-openbsd/lib/libc/stdio/fvwrite.c
+++ b/libc/upstream-openbsd/lib/libc/stdio/fvwrite.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: fvwrite.c,v 1.21 2023/10/06 16:41:02 millert Exp $ */
+/*	$OpenBSD: fvwrite.c,v 1.22 2024/04/28 14:28:02 millert Exp $ */
 /*-
  * Copyright (c) 1990, 1993
  *	The Regents of the University of California.  All rights reserved.
@@ -31,6 +31,7 @@
  * SUCH DAMAGE.
  */
 
+#include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -76,11 +77,12 @@
 	}
 	if (fp->_flags & __SNBF) {
 		/*
-		 * Unbuffered: write up to BUFSIZ bytes at a time.
+		 * Unbuffered: write up to INT_MAX bytes at a time, to not
+		 * truncate the value of len if it is greater than 2^31 bytes.
 		 */
 		do {
 			GETIOV(;);
-			w = (*fp->_write)(fp->_cookie, p, MIN(len, BUFSIZ));
+			w = (*fp->_write)(fp->_cookie, p, MIN(len, INT_MAX));
 			if (w <= 0)
 				goto err;
 			p += w;
@@ -90,7 +92,8 @@
 		/*
 		 * Fully buffered: fill partially full buffer, if any,
 		 * and then flush.  If there is no partial buffer, write
-		 * one _bf._size byte chunk directly (without copying).
+		 * entire payload directly (without copying) up to a
+		 * multiple of the buffer size.
 		 *
 		 * String output is a special case: write as many bytes
 		 * as fit, but pretend we wrote everything.  This makes
@@ -134,7 +137,15 @@
 				if (__sflush(fp))
 					goto err;
 			} else if (len >= (w = fp->_bf._size)) {
-				/* write directly */
+				/*
+				 * Write directly up to INT_MAX or greatest
+				 * multiple of buffer size (whichever is
+				 * smaller), keeping in the memory buffer the
+				 * remaining part of payload that is smaller
+				 * than buffer size.
+				 */
+				if (w != 0)
+					w = MIN(w * (len / w), INT_MAX);
 				w = (*fp->_write)(fp->_cookie, p, w);
 				if (w <= 0)
 					goto err;
diff --git a/libdl/Android.bp b/libdl/Android.bp
index 95b412b..1bbd902 100644
--- a/libdl/Android.bp
+++ b/libdl/Android.bp
@@ -60,33 +60,14 @@
     native_bridge_supported: true,
     static_ndk_lib: true,
 
-    defaults: ["linux_bionic_supported"],
-
-    // NOTE: --exclude-libs=libgcc.a makes sure that any symbols libdl.so pulls from
-    // libgcc.a are made static to libdl.so.  This in turn ensures that libraries that
-    // a) pull symbols from libgcc.a and b) depend on libdl.so will not rely on libdl.so
-    // to provide those symbols, but will instead pull them from libgcc.a.  Specifically,
-    // we use this property to make sure libc.so has its own copy of the code from
-    // libgcc.a it uses.
-    //
-    // DO NOT REMOVE --exclude-libs!
-
-    ldflags: [
-        "-Wl,--exclude-libs=libgcc.a",
-        "-Wl,--exclude-libs=libgcc_stripped.a",
-        "-Wl,--exclude-libs=libclang_rt.builtins-arm-android.a",
-        "-Wl,--exclude-libs=libclang_rt.builtins-aarch64-android.a",
-        "-Wl,--exclude-libs=libclang_rt.builtins-i686-android.a",
-        "-Wl,--exclude-libs=libclang_rt.builtins-riscv64-android.a",
-        "-Wl,--exclude-libs=libclang_rt.builtins-x86_64-android.a",
+    defaults: [
+        "linux_bionic_supported",
+        "bug_24465209_workaround",
     ],
 
-    // for x86, exclude libgcc_eh.a for the same reasons as above
     arch: {
         arm: {
             version_script: ":libdl.arm.map",
-            pack_relocations: false,
-            ldflags: ["-Wl,--hash-style=both"],
         },
         arm64: {
             version_script: ":libdl.arm64.map",
@@ -95,15 +76,9 @@
             version_script: ":libdl.riscv64.map",
         },
         x86: {
-            pack_relocations: false,
-            ldflags: [
-                "-Wl,--exclude-libs=libgcc_eh.a",
-                "-Wl,--hash-style=both",
-            ],
             version_script: ":libdl.x86.map",
         },
         x86_64: {
-            ldflags: ["-Wl,--exclude-libs=libgcc_eh.a"],
             version_script: ":libdl.x86_64.map",
         },
     },
@@ -162,37 +137,6 @@
     recovery_available: true,
     native_bridge_supported: true,
 
-    // NOTE: --exclude-libs=libgcc.a makes sure that any symbols libdl.so pulls from
-    // libgcc.a are made static to libdl.so.  This in turn ensures that libraries that
-    // a) pull symbols from libgcc.a and b) depend on libdl.so will not rely on libdl.so
-    // to provide those symbols, but will instead pull them from libgcc.a.  Specifically,
-    // we use this property to make sure libc.so has its own copy of the code from
-    // libgcc.a it uses.
-    //
-    // DO NOT REMOVE --exclude-libs!
-
-    ldflags: [
-        "-Wl,--exclude-libs=libgcc.a",
-        "-Wl,--exclude-libs=libgcc_stripped.a",
-        "-Wl,--exclude-libs=libclang_rt.builtins-arm-android.a",
-        "-Wl,--exclude-libs=libclang_rt.builtins-aarch64-android.a",
-        "-Wl,--exclude-libs=libclang_rt.builtins-i686-android.a",
-        "-Wl,--exclude-libs=libclang_rt.builtins-riscv64-android.a",
-        "-Wl,--exclude-libs=libclang_rt.builtins-x86_64-android.a",
-    ],
-
-    // for x86, exclude libgcc_eh.a for the same reasons as above
-    arch: {
-        x86: {
-            ldflags: [
-                "-Wl,--exclude-libs=libgcc_eh.a",
-            ],
-        },
-        x86_64: {
-            ldflags: ["-Wl,--exclude-libs=libgcc_eh.a"],
-        },
-    },
-
     srcs: ["libdl_android.cpp"],
     version_script: "libdl_android.map.txt",
 
diff --git a/libdl/libdl_cfi.cpp b/libdl/libdl_cfi.cpp
index 23cd7f5..8adc342 100644
--- a/libdl/libdl_cfi.cpp
+++ b/libdl/libdl_cfi.cpp
@@ -26,15 +26,15 @@
 // dlopen/dlclose.
 static struct {
   uintptr_t v;
-  char padding[max_page_size() - sizeof(v)];
-} shadow_base_storage alignas(max_page_size());
+  char padding[max_android_page_size() - sizeof(v)];
+} shadow_base_storage alignas(max_android_page_size());
 
 // __cfi_init is called by the loader as soon as the shadow is mapped. This may happen very early
 // during startup, before libdl.so global constructors, and, on i386, even before __libc_sysinfo is
 // initialized. This function should not do any system calls.
 extern "C" uintptr_t* __cfi_init(uintptr_t shadow_base) {
   shadow_base_storage.v = shadow_base;
-  static_assert(sizeof(shadow_base_storage) == max_page_size(), "");
+  static_assert(sizeof(shadow_base_storage) == max_android_page_size(), "");
   return &shadow_base_storage.v;
 }
 
diff --git a/libfdtrack/Android.bp b/libfdtrack/Android.bp
index c19d8b2..644d46d 100644
--- a/libfdtrack/Android.bp
+++ b/libfdtrack/Android.bp
@@ -27,6 +27,7 @@
         "libunwindstack",
         "liblzma",
         "liblog",
+        "libz",
     ],
     target: {
         recovery: {
diff --git a/libfdtrack/fdtrack.cpp b/libfdtrack/fdtrack.cpp
index 57b9d37..3627c84 100644
--- a/libfdtrack/fdtrack.cpp
+++ b/libfdtrack/fdtrack.cpp
@@ -281,11 +281,13 @@
 
     if (!stack) {
       async_safe_format_buffer(buf, sizeof(buf),
-                               "aborting due to fd leak: failed to find most common stack");
+                               "aborting due to fd leak: see \"open files\" in the tombstone; "
+                               "no stacks?!");
     } else {
       char* p = buf;
       p += async_safe_format_buffer(buf, sizeof(buf),
-                                    "aborting due to fd leak: most common stack =\n");
+                                    "aborting due to fd leak: see \"open files\" in the tombstone; "
+                                    "most common stack (%zu/%zu) is\n", max, stacks.count);
 
       for (size_t i = 0; i < stack->stack_depth; ++i) {
         ssize_t bytes_left = buf + sizeof(buf) - p;
diff --git a/libm/Android.bp b/libm/Android.bp
index cc37fb7..9ef8d55 100644
--- a/libm/Android.bp
+++ b/libm/Android.bp
@@ -21,7 +21,10 @@
 
 cc_library {
     name: "libm",
-    defaults: ["linux_bionic_supported"],
+    defaults: [
+        "linux_bionic_supported",
+        "bug_24465209_workaround",
+    ],
     ramdisk_available: true,
     vendor_ramdisk_available: true,
     recovery_available: true,
@@ -158,8 +161,6 @@
         "upstream-freebsd/lib/msun/src/s_nextafterf.c",
         "upstream-freebsd/lib/msun/src/s_remquo.c",
         "upstream-freebsd/lib/msun/src/s_remquof.c",
-        "upstream-freebsd/lib/msun/src/s_rint.c",
-        "upstream-freebsd/lib/msun/src/s_rintf.c",
         "upstream-freebsd/lib/msun/src/s_round.c",
         "upstream-freebsd/lib/msun/src/s_roundf.c",
         "upstream-freebsd/lib/msun/src/s_scalbln.c",
@@ -176,17 +177,15 @@
         "upstream-freebsd/lib/msun/src/s_tanh.c",
         "upstream-freebsd/lib/msun/src/s_tanhf.c",
         "upstream-freebsd/lib/msun/src/s_tgammaf.c",
-        "upstream-freebsd/lib/msun/src/s_trunc.c",
-        "upstream-freebsd/lib/msun/src/s_truncf.c",
         "upstream-freebsd/lib/msun/src/w_cabs.c",
         "upstream-freebsd/lib/msun/src/w_cabsf.c",
         "upstream-freebsd/lib/msun/src/w_cabsl.c",
         "upstream-freebsd/lib/msun/src/w_drem.c",
         "upstream-freebsd/lib/msun/src/w_dremf.c",
 
-        // The FreeBSD complex functions appear to be better, but they're incomplete.
-        // We take the FreeBSD implementations when they exist, but fill out the rest
-        // of <complex.h> from NetBSD...
+        // The FreeBSD complex function implementations appear to be better
+        // than the other BSDs', but they're incomplete. We take the FreeBSD
+        // implementations when they exist, but fill out the rest from NetBSD...
         "upstream-netbsd/lib/libm/complex/ccoshl.c",
         "upstream-netbsd/lib/libm/complex/ccosl.c",
         "upstream-netbsd/lib/libm/complex/cephes_subrl.c",
@@ -196,11 +195,6 @@
         "upstream-netbsd/lib/libm/complex/ctanhl.c",
         "upstream-netbsd/lib/libm/complex/ctanl.c",
 
-        // TODO: this comes from from upstream's libc, not libm, but it's an
-        // implementation detail that should have hidden visibility, so it needs
-        // to be in whatever library the math code is in.
-        "digittoint.c",
-
         // Functionality not in the BSDs.
         "significandl.c",
         "fake_long_double.c",
@@ -277,13 +271,24 @@
     arch: {
         arm: {
             srcs: [
-                "arm/fenv.c",
-                "upstream-freebsd/lib/msun/src/s_ceil.c",
-                "upstream-freebsd/lib/msun/src/s_ceilf.c",
+                "fenv-arm.c",
             ],
+            armv7_a_neon: {
+                // armv7 arm32 has no instructions to implement these as
+                // builtins, so we build the portable implementations for armv7,
+                // because the NDK still supports armv7.
+                srcs: [
+                    "upstream-freebsd/lib/msun/src/s_ceil.c",
+                    "upstream-freebsd/lib/msun/src/s_ceilf.c",
+                    "upstream-freebsd/lib/msun/src/s_floor.c",
+                    "upstream-freebsd/lib/msun/src/s_floorf.c",
+                    "upstream-freebsd/lib/msun/src/s_rint.c",
+                    "upstream-freebsd/lib/msun/src/s_rintf.c",
+                    "upstream-freebsd/lib/msun/src/s_trunc.c",
+                    "upstream-freebsd/lib/msun/src/s_truncf.c",
+                ],
+            },
             instruction_set: "arm",
-            pack_relocations: false,
-            ldflags: ["-Wl,--hash-style=both"],
             version_script: ":libm.arm.map",
             no_libcrt: true,
             shared: {
@@ -296,7 +301,7 @@
 
         arm64: {
             srcs: [
-                "arm64/fenv.c",
+                "fenv-arm64.c",
             ],
             exclude_srcs: [
                 "upstream-freebsd/lib/msun/src/s_fma.c",
@@ -313,19 +318,15 @@
                 "upstream-freebsd/lib/msun/src/s_lrintf.c",
                 "upstream-freebsd/lib/msun/src/s_lround.c",
                 "upstream-freebsd/lib/msun/src/s_lroundf.c",
-                "upstream-freebsd/lib/msun/src/s_rint.c",
-                "upstream-freebsd/lib/msun/src/s_rintf.c",
                 "upstream-freebsd/lib/msun/src/s_round.c",
                 "upstream-freebsd/lib/msun/src/s_roundf.c",
-                "upstream-freebsd/lib/msun/src/s_trunc.c",
-                "upstream-freebsd/lib/msun/src/s_truncf.c",
             ],
             version_script: ":libm.arm64.map",
         },
 
         riscv64: {
             srcs: [
-                "riscv64/fenv.c",
+                "fenv-riscv64.c",
             ],
 
             exclude_srcs: [
@@ -343,42 +344,31 @@
                 "upstream-freebsd/lib/msun/src/s_lrintf.c",
                 "upstream-freebsd/lib/msun/src/s_lround.c",
                 "upstream-freebsd/lib/msun/src/s_lroundf.c",
-                "upstream-freebsd/lib/msun/src/s_rint.c",
-                "upstream-freebsd/lib/msun/src/s_rintf.c",
                 "upstream-freebsd/lib/msun/src/s_round.c",
                 "upstream-freebsd/lib/msun/src/s_roundf.c",
-                "upstream-freebsd/lib/msun/src/s_trunc.c",
-                "upstream-freebsd/lib/msun/src/s_truncf.c",
             ],
             version_script: ":libm.riscv64.map",
         },
 
         x86: {
             srcs: [
-                "i387/fenv.c",
+                "fenv-x86.c",
                 "x86/lrint.S",
                 "x86/lrintf.S",
             ],
             exclude_srcs: [
                 "upstream-freebsd/lib/msun/src/s_lrint.c",
                 "upstream-freebsd/lib/msun/src/s_lrintf.c",
-                "upstream-freebsd/lib/msun/src/s_rint.c",
-                "upstream-freebsd/lib/msun/src/s_rintf.c",
-                "upstream-freebsd/lib/msun/src/s_trunc.c",
-                "upstream-freebsd/lib/msun/src/s_truncf.c",
             ],
-            local_include_dirs: ["i387"],
-            pack_relocations: false,
             // The x86 ABI doesn't include this, which is needed for the
             // roundss/roundsd instructions that we've used since Android M.
             cflags: ["-msse4.1"],
-            ldflags: ["-Wl,--hash-style=both"],
             version_script: ":libm.x86.map",
         },
 
         x86_64: {
             srcs: [
-                "amd64/fenv.c",
+                "fenv-x86_64.c",
                 "x86_64/lrint.S",
                 "x86_64/lrintf.S",
             ],
@@ -387,10 +377,6 @@
                 "upstream-freebsd/lib/msun/src/s_llrintf.c",
                 "upstream-freebsd/lib/msun/src/s_lrint.c",
                 "upstream-freebsd/lib/msun/src/s_lrintf.c",
-                "upstream-freebsd/lib/msun/src/s_rint.c",
-                "upstream-freebsd/lib/msun/src/s_rintf.c",
-                "upstream-freebsd/lib/msun/src/s_trunc.c",
-                "upstream-freebsd/lib/msun/src/s_truncf.c",
             ],
             version_script: ":libm.x86_64.map",
         },
@@ -402,10 +388,7 @@
     ],
 
     cflags: [
-        "-D_BSD_SOURCE",
-        "-DFLT_EVAL_METHOD=0",
         "-include freebsd-compat.h",
-        "-include fenv-access.h",
         "-fno-builtin",
         "-fno-math-errno",
         "-Wall",
@@ -509,6 +492,8 @@
     cmd: "$(location generate-version-script) x86_64 $(in) $(out)",
 }
 
+// Because of a historical accidnt, ldexp() is in libc,
+// even though ldexpf() and ldexpl() are in libm.
 filegroup {
     name: "libc_ldexp_srcs",
     srcs: ["upstream-freebsd/lib/msun/src/s_scalbn.c"],
diff --git a/libm/NOTICE b/libm/NOTICE
index 31337e7..a88c351 100644
--- a/libm/NOTICE
+++ b/libm/NOTICE
@@ -140,15 +140,6 @@
 -------------------------------------------------------------------
 
 ====================================================
-Copyright (C) 2004 by Sun Microsystems, Inc. All rights reserved.
-
-Permission to use, copy, modify, and distribute this
-software is freely granted, provided that this notice
-is preserved.
-
--------------------------------------------------------------------
-
-====================================================
 Copyright 2004 Sun Microsystems, Inc.  All Rights Reserved.
 
 Permission to use, copy, modify, and distribute this
@@ -309,125 +300,6 @@
 
 -------------------------------------------------------------------
 
-Copyright (c) 1985, 1993
-   The Regents of the University of California.  All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-3. Neither the name of the University nor the names of its contributors
-   may be used to endorse or promote products derived from this software
-   without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGE.
-
--------------------------------------------------------------------
-
-Copyright (c) 1988, 1993
-   The Regents of the University of California.  All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-3. All advertising materials mentioning features or use of this software
-   must display the following acknowledgement:
-   This product includes software developed by the University of
-   California, Berkeley and its contributors.
-4. Neither the name of the University nor the names of its contributors
-   may be used to endorse or promote products derived from this software
-   without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGE.
-
--------------------------------------------------------------------
-
-Copyright (c) 1992, 1993
-   The Regents of the University of California.  All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-3. Neither the name of the University nor the names of its contributors
-   may be used to endorse or promote products derived from this software
-   without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGE.
-
--------------------------------------------------------------------
-
-Copyright (c) 2003 Dag-Erling Smørgrav
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer
-   in this position and unchanged.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-3. The name of the author may not be used to endorse or promote products
-   derived from this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
-OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
-IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
--------------------------------------------------------------------
-
 Copyright (c) 2003 Mike Barcroft <mike@FreeBSD.org>
 Copyright (c) 2002 David Schultz <das@FreeBSD.ORG>
 All rights reserved.
@@ -455,32 +327,6 @@
 
 -------------------------------------------------------------------
 
-Copyright (c) 2003, Steven G. Kargl
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice unmodified, this list of conditions, and the following
-   disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
-OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
-IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
--------------------------------------------------------------------
-
 Copyright (c) 2004 David Schultz <das@FreeBSD.ORG>
 All rights reserved.
 
@@ -507,32 +353,6 @@
 
 -------------------------------------------------------------------
 
-Copyright (c) 2004 Stefan Farfeleder
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGE.
-
--------------------------------------------------------------------
-
 Copyright (c) 2004-2005 David Schultz <das (at) FreeBSD.ORG>
 All rights reserved.
 
@@ -585,231 +405,15 @@
 
 -------------------------------------------------------------------
 
-Copyright (c) 2005 Bruce D. Evans and Steven G. Kargl
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice unmodified, this list of conditions, and the following
-   disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
-OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
-IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
--------------------------------------------------------------------
-
-Copyright (c) 2005 David Schultz <das@FreeBSD.ORG>
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGE.
-
--------------------------------------------------------------------
-
-Copyright (c) 2005-2008 David Schultz <das@FreeBSD.ORG>
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGE.
-
--------------------------------------------------------------------
-
-Copyright (c) 2005-2011 David Schultz <das@FreeBSD.ORG>
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGE.
-
--------------------------------------------------------------------
-
 Copyright (c) 2005-2020 Rich Felker, et al.
 
+SPDX-License-Identifier: MIT
 
 Please see https://git.musl-libc.org/cgit/musl/tree/COPYRIGHT
 for all contributors to musl.
 
 -------------------------------------------------------------------
 
-Copyright (c) 2007 David Schultz
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGE.
-
--------------------------------------------------------------------
-
-Copyright (c) 2007 David Schultz <das@FreeBSD.ORG>
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGE.
-
--------------------------------------------------------------------
-
-Copyright (c) 2007 David Schultz <das@FreeBSD.ORG>
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGE.
-
-Derived from s_modf.c, which has the following Copyright:
-====================================================
-Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
-
-Developed at SunPro, a Sun Microsystems, Inc. business.
-Permission to use, copy, modify, and distribute this
-software is freely granted, provided that this notice
-is preserved.
-
--------------------------------------------------------------------
-
-Copyright (c) 2007 Steven G. Kargl
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice unmodified, this list of conditions, and the following
-   disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
-OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
-IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
--------------------------------------------------------------------
-
 Copyright (c) 2007 The NetBSD Foundation, Inc.
 All rights reserved.
 
@@ -867,84 +471,6 @@
 
 -------------------------------------------------------------------
 
-Copyright (c) 2007-2008 David Schultz <das@FreeBSD.ORG>
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGE.
-
--------------------------------------------------------------------
-
-Copyright (c) 2007-2013 Bruce D. Evans
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice unmodified, this list of conditions, and the following
-   disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
-OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
-IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
--------------------------------------------------------------------
-
-Copyright (c) 2008 David Schultz <das@FreeBSD.ORG>
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGE.
-
--------------------------------------------------------------------
-
 Copyright (c) 2008 Stephen L. Moshier <steve@moshier.net>
 
 Permission to use, copy, modify, and distribute this software for any
@@ -961,112 +487,6 @@
 
 -------------------------------------------------------------------
 
-Copyright (c) 2009-2013 Steven G. Kargl
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice unmodified, this list of conditions, and the following
-   disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
-OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
-IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-Optimized by Bruce D. Evans.
-
--------------------------------------------------------------------
-
-Copyright (c) 2011 David Schultz
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice unmodified, this list of conditions, and the following
-   disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
-OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
-IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
--------------------------------------------------------------------
-
-Copyright (c) 2011 David Schultz <das@FreeBSD.ORG>
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGE.
-
--------------------------------------------------------------------
-
-Copyright (c) 2012 Stephen Montgomery-Smith <stephen@FreeBSD.ORG>
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGE.
-
--------------------------------------------------------------------
-
 Copyright (c) 2012 Stephen Montgomery-Smith <stephen@FreeBSD.ORG>
 Copyright (c) 2017 Mahdi Mokhtari <mmokhi@FreeBSD.org>
 All rights reserved.
@@ -1202,7 +622,313 @@
 
 -------------------------------------------------------------------
 
-From: @(#)s_ilogb.c 5.1 93/09/24
+SPDX-License-Identifier: BSD-2-Clause
+
+Copyright (c) 2003, Steven G. Kargl
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice unmodified, this list of conditions, and the following
+   disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-2-Clause
+
+Copyright (c) 2004 David Schultz <das@FreeBSD.ORG>
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-2-Clause
+
+Copyright (c) 2004 Stefan Farfeleder
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-2-Clause
+
+Copyright (c) 2004-2005 David Schultz <das@FreeBSD.ORG>
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-2-Clause
+
+Copyright (c) 2005 Bruce D. Evans and Steven G. Kargl
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice unmodified, this list of conditions, and the following
+   disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-2-Clause
+
+Copyright (c) 2005 David Schultz <das@FreeBSD.ORG>
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-2-Clause
+
+Copyright (c) 2005-2008 David Schultz <das@FreeBSD.ORG>
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-2-Clause
+
+Copyright (c) 2005-2011 David Schultz <das@FreeBSD.ORG>
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-2-Clause
+
+Copyright (c) 2007 David Schultz
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-2-Clause
+
+Copyright (c) 2007 David Schultz <das@FreeBSD.ORG>
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-2-Clause
+
+Copyright (c) 2007 David Schultz <das@FreeBSD.ORG>
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+Derived from s_modf.c, which has the following Copyright:
 ====================================================
 Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
 
@@ -1213,3 +939,291 @@
 
 -------------------------------------------------------------------
 
+SPDX-License-Identifier: BSD-2-Clause
+
+Copyright (c) 2007 Steven G. Kargl
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice unmodified, this list of conditions, and the following
+   disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-2-Clause
+
+Copyright (c) 2007-2008 David Schultz <das@FreeBSD.ORG>
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-2-Clause
+
+Copyright (c) 2007-2013 Bruce D. Evans
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice unmodified, this list of conditions, and the following
+   disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-2-Clause
+
+Copyright (c) 2008 David Schultz <das@FreeBSD.ORG>
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-2-Clause
+
+Copyright (c) 2009-2013 Steven G. Kargl
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice unmodified, this list of conditions, and the following
+   disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+Optimized by Bruce D. Evans.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-2-Clause
+
+Copyright (c) 2011 David Schultz
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice unmodified, this list of conditions, and the following
+   disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-2-Clause
+
+Copyright (c) 2011 David Schultz <das@FreeBSD.ORG>
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-2-Clause
+
+Copyright (c) 2012 Stephen Montgomery-Smith <stephen@FreeBSD.ORG>
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-3-Clause
+
+Copyright (c) 1985, 1993
+   The Regents of the University of California.  All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. Neither the name of the University nor the names of its contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
+SPDX-License-Identifier: BSD-3-Clause
+
+Copyright (c) 1992, 1993
+   The Regents of the University of California.  All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. Neither the name of the University nor the names of its contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+-------------------------------------------------------------------
+
diff --git a/libm/builtins.cpp b/libm/builtins.cpp
index 41e145b..22a0191 100644
--- a/libm/builtins.cpp
+++ b/libm/builtins.cpp
@@ -18,13 +18,12 @@
 
 #include "fpmath.h"
 
-double fabs(double x) { return __builtin_fabs(x); }
-float fabsf(float x) { return __builtin_fabsf(x); }
-long double fabsl(long double x) { return __builtin_fabsl(x); }
-
-#if defined(__aarch64__) || defined(__riscv) || defined(__i386__) || defined(__x86_64__)
-float ceilf(float x) { return __builtin_ceilf(x); }
+#if defined(__arm__) && (__ARM_ARCH <= 7)
+// armv7 arm32 has no instructions to implement these builtins,
+// so we include the msun source in the .bp file instead.
+#else
 double ceil(double x) { return __builtin_ceil(x); }
+float ceilf(float x) { return __builtin_ceilf(x); }
 #if defined(__ILP32__)
 __weak_reference(ceil, ceill);
 #endif
@@ -34,21 +33,16 @@
 float copysignf(float x, float y) { return __builtin_copysignf(x, y); }
 long double copysignl(long double x, long double y) { return __builtin_copysignl(x, y); }
 
-#if defined(__arm__) && (__ARM_ARCH < 8)
-// armv8 arm32 has a single-instruction implementation for these, but
-// armv7 arm32 doesn't, so __builtin_ doesn't work for arm32.
-#include "math_private.h"
-namespace s_floor {
-#include "upstream-freebsd/lib/msun/src/s_floor.c"
-}
-namespace s_floorf {
-#include "upstream-freebsd/lib/msun/src/s_floorf.c"
-}
-float floorf(float x) { return s_floorf::floorf(x); }
-double floor(double x) { return s_floor::floor(x); }
+double fabs(double x) { return __builtin_fabs(x); }
+float fabsf(float x) { return __builtin_fabsf(x); }
+long double fabsl(long double x) { return __builtin_fabsl(x); }
+
+#if defined(__arm__) && (__ARM_ARCH <= 7)
+// armv7 arm32 has no instructions to implement these builtins,
+// so we include the msun source in the .bp file instead.
 #else
-float floorf(float x) { return __builtin_floorf(x); }
 double floor(double x) { return __builtin_floor(x); }
+float floorf(float x) { return __builtin_floorf(x); }
 #if defined(__ILP32__)
 __weak_reference(floor, floorl);
 #endif
@@ -79,28 +73,34 @@
 long long llroundf(float x) { return __builtin_llroundf(x); }
 #endif
 
-#if defined(__aarch64__) || defined(__riscv) || defined(__i386__) || defined(__x86_64__)
-float rintf(float x) { return __builtin_rintf(x); }
+#if defined(__arm__) && (__ARM_ARCH <= 7)
+// armv7 arm32 has no instructions to implement these builtins,
+// so we include the msun source in the .bp file instead.
+#else
 double rint(double x) { return __builtin_rint(x); }
+float rintf(float x) { return __builtin_rintf(x); }
 #if defined(__ILP32__)
 __weak_reference(rint, rintl);
 #endif
 #endif
 
 #if defined(__aarch64__) || defined(__riscv)
-float roundf(float x) { return __builtin_roundf(x); }
 double round(double x) { return __builtin_round(x); }
+float roundf(float x) { return __builtin_roundf(x); }
 #endif
 
-float sqrtf(float x) { return __builtin_sqrtf(x); }
 double sqrt(double x) { return __builtin_sqrt(x); }
+float sqrtf(float x) { return __builtin_sqrtf(x); }
 #if defined(__ILP32__)
 __weak_reference(sqrt, sqrtl);
 #endif
 
-#if defined(__aarch64__) || defined(__riscv) || defined(__i386__) || defined(__x86_64__)
-float truncf(float x) { return __builtin_truncf(x); }
+#if defined(__arm__) && (__ARM_ARCH <= 7)
+// armv7 arm32 has no instructions to implement these builtins,
+// so we include the msun source in the .bp file instead.
+#else
 double trunc(double x) { return __builtin_trunc(x); }
+float truncf(float x) { return __builtin_truncf(x); }
 #if defined(__ILP32__)
 __weak_reference(trunc, truncl);
 #endif
diff --git a/libm/digittoint.c b/libm/digittoint.c
deleted file mode 100644
index 1824788..0000000
--- a/libm/digittoint.c
+++ /dev/null
@@ -1,46 +0,0 @@
-/*-
- * Copyright (c) 2007 David Schultz
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * $FreeBSD$
- */
-
-#include <sys/cdefs.h>
-
-/* digittoint is in the FreeBSD C library, but implemented in terms of locale stuff. */
-__LIBC_HIDDEN__ int digittoint(char ch) {
-  int d = ch - '0';
-  if ((unsigned) d < 10) {
-    return d;
-  }
-  d = ch - 'a';
-  if ((unsigned) d < 6) {
-    return d + 10;
-  }
-  d = ch - 'A';
-  if ((unsigned) d < 6) {
-    return d + 10;
-  }
-  return -1;
-}
diff --git a/libm/fenv-access.h b/libm/fenv-access.h
deleted file mode 100644
index 7acb34d..0000000
--- a/libm/fenv-access.h
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * Copyright (C) 2021 The Android Open Source Project
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#pragma once
-
-#if defined(__x86_64__) || defined(__i386__)
-#pragma STDC FENV_ACCESS ON
-#endif
diff --git a/libm/arm/fenv.c b/libm/fenv-arm.c
similarity index 100%
rename from libm/arm/fenv.c
rename to libm/fenv-arm.c
diff --git a/libm/arm64/fenv.c b/libm/fenv-arm64.c
similarity index 100%
rename from libm/arm64/fenv.c
rename to libm/fenv-arm64.c
diff --git a/libm/riscv64/fenv.c b/libm/fenv-riscv64.c
similarity index 100%
rename from libm/riscv64/fenv.c
rename to libm/fenv-riscv64.c
diff --git a/libm/i387/fenv.c b/libm/fenv-x86.c
similarity index 100%
rename from libm/i387/fenv.c
rename to libm/fenv-x86.c
diff --git a/libm/amd64/fenv.c b/libm/fenv-x86_64.c
similarity index 100%
rename from libm/amd64/fenv.c
rename to libm/fenv-x86_64.c
diff --git a/libm/freebsd-compat.h b/libm/freebsd-compat.h
index 7accc55..9555ff9 100644
--- a/libm/freebsd-compat.h
+++ b/libm/freebsd-compat.h
@@ -16,9 +16,12 @@
 
 #pragma once
 
+// Since we're implementing all the extensions,
+// we need to make sure we get all their declarations when we include <math.h>.
+#define _BSD_SOURCE
+
 // Some FreeBSD source includes <complex.h> and assumes <math.h> from that.
 #include <math.h>
-#include <float.h>
 
 #define __weak_reference(sym,alias)     \
     __asm__(".weak " #alias);           \
@@ -27,18 +30,12 @@
 #define __strong_reference(sym,aliassym) \
     extern __typeof (sym) aliassym __attribute__ ((__alias__ (#sym)))
 
-#define __warn_references(sym,msg) /* ignored */
-
-// digittoint is in BSD's <ctype.h>, but not ours, so we have a secret
-// implementation in libm. We reuse parts of libm in the NDK's
-// libandroid_support, where it's a static library, so we want all our
-// "hidden" functions start with a double underscore --- being HIDDEN
-// in the ELF sense is not sufficient.
-#define digittoint __libm_digittoint
-int digittoint(char ch);
-
-// Similarly rename _scan_nan.
-#define _scan_nan __libm_scan_nan
+// digittoint is in BSD's <ctype.h> but not ours.
+#include <ctype.h>
+static inline int digittoint(char ch) {
+  if (!isxdigit(ch)) return -1;
+  return isdigit(ch) ? (ch - '0') : (_tolower(ch) - 'a');
+}
 
 // FreeBSD exports these in <math.h> but we don't.
 double cospi(double);
diff --git a/libm/libm.map.txt b/libm/libm.map.txt
index a931b93..f1732f8 100644
--- a/libm/libm.map.txt
+++ b/libm/libm.map.txt
@@ -271,7 +271,7 @@
     *;
 };
 
-LIBC_O { # introduced=O
+LIBC_O { # introduced=26
   global:
     cacoshl;
     cacosl;
diff --git a/libm/significandl.c b/libm/significandl.c
index c5d7dd4..b672110 100644
--- a/libm/significandl.c
+++ b/libm/significandl.c
@@ -22,11 +22,13 @@
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
- *
  */
 
 #include <math.h>
 
+// This function is only in glibc.
+// musl and NetBSD/OpenBSD just have the double and float variants,
+// while FreeBSD and iOS/macOS have none.
 long double significandl(long double x) {
   return scalbnl(x, -ilogbl(x));
 }
diff --git a/libm/upstream-freebsd/lib/msun/bsdsrc/b_exp.c b/libm/upstream-freebsd/lib/msun/bsdsrc/b_exp.c
index c667293..44cd519 100644
--- a/libm/upstream-freebsd/lib/msun/bsdsrc/b_exp.c
+++ b/libm/upstream-freebsd/lib/msun/bsdsrc/b_exp.c
@@ -29,10 +29,6 @@
  * SUCH DAMAGE.
  */
 
-/* @(#)exp.c	8.1 (Berkeley) 6/4/93 */
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* EXP(X)
  * RETURN THE EXPONENTIAL OF X
  * DOUBLE PRECISION (IEEE 53 bits, VAX D FORMAT 56 BITS)
diff --git a/libm/upstream-freebsd/lib/msun/bsdsrc/b_log.c b/libm/upstream-freebsd/lib/msun/bsdsrc/b_log.c
index 9d09ac7..a82140b 100644
--- a/libm/upstream-freebsd/lib/msun/bsdsrc/b_log.c
+++ b/libm/upstream-freebsd/lib/msun/bsdsrc/b_log.c
@@ -29,10 +29,6 @@
  * SUCH DAMAGE.
  */
 
-/* @(#)log.c	8.2 (Berkeley) 11/30/93 */
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* Table-driven natural logarithm.
  *
  * This code was derived, with minor modifications, from:
diff --git a/libm/upstream-freebsd/lib/msun/bsdsrc/b_tgamma.c b/libm/upstream-freebsd/lib/msun/bsdsrc/b_tgamma.c
index 493ced3..8369477 100644
--- a/libm/upstream-freebsd/lib/msun/bsdsrc/b_tgamma.c
+++ b/libm/upstream-freebsd/lib/msun/bsdsrc/b_tgamma.c
@@ -42,10 +42,6 @@
  *  porting to other precisions.
  */
 
-/* @(#)gamma.c	8.1 (Berkeley) 6/4/93 */
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <float.h>
 
 #include "math.h"
diff --git a/libm/upstream-freebsd/lib/msun/bsdsrc/mathimpl.h b/libm/upstream-freebsd/lib/msun/bsdsrc/mathimpl.h
deleted file mode 100644
index abf2996..0000000
--- a/libm/upstream-freebsd/lib/msun/bsdsrc/mathimpl.h
+++ /dev/null
@@ -1,76 +0,0 @@
-/*-
- * SPDX-License-Identifier: BSD-4-Clause
- *
- * Copyright (c) 1988, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)mathimpl.h	8.1 (Berkeley) 6/4/93
- * $FreeBSD$
- */
-
-#ifndef _MATHIMPL_H_
-#define	_MATHIMPL_H_
-
-#include <sys/cdefs.h>
-#include <math.h>
-
-#include "../src/math_private.h"
-
-/*
- * TRUNC() is a macro that sets the trailing 27 bits in the mantissa of an
- * IEEE double variable to zero.  It must be expression-like for syntactic
- * reasons, and we implement this expression using an inline function
- * instead of a pure macro to avoid depending on the gcc feature of
- * statement-expressions.
- */
-#define	TRUNC(d)	(_b_trunc(&(d)))
-
-static __inline void
-_b_trunc(volatile double *_dp)
-{
-	uint32_t _lw;
-
-	GET_LOW_WORD(_lw, *_dp);
-	SET_LOW_WORD(*_dp, _lw & 0xf8000000);
-}
-
-struct Double {
-	double	a;
-	double	b;
-};
-
-/*
- * Functions internal to the math package, yet not static.
- */
-double	__exp__D(double, double);
-struct Double __log__D(double);
-
-#endif /* !_MATHIMPL_H_ */
diff --git a/libm/upstream-freebsd/lib/msun/ld128/e_lgammal_r.c b/libm/upstream-freebsd/lib/msun/ld128/e_lgammal_r.c
index 53d3af1..f8079b7 100644
--- a/libm/upstream-freebsd/lib/msun/ld128/e_lgammal_r.c
+++ b/libm/upstream-freebsd/lib/msun/ld128/e_lgammal_r.c
@@ -1,4 +1,3 @@
-/* @(#)e_lgamma_r.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * See e_lgamma_r.c for complete comments.
  *
diff --git a/libm/upstream-freebsd/lib/msun/ld128/e_powl.c b/libm/upstream-freebsd/lib/msun/ld128/e_powl.c
index 12b92a1..f5a993c 100644
--- a/libm/upstream-freebsd/lib/msun/ld128/e_powl.c
+++ b/libm/upstream-freebsd/lib/msun/ld128/e_powl.c
@@ -59,9 +59,6 @@
  *
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <float.h>
 #include <math.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/ld128/e_rem_pio2l.h b/libm/upstream-freebsd/lib/msun/ld128/e_rem_pio2l.h
index fcef399..0ea1a70 100644
--- a/libm/upstream-freebsd/lib/msun/ld128/e_rem_pio2l.h
+++ b/libm/upstream-freebsd/lib/msun/ld128/e_rem_pio2l.h
@@ -1,4 +1,3 @@
-/* From: @(#)e_rem_pio2.c 1.4 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -13,9 +12,6 @@
  * Optimized by Bruce D. Evans.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* ld128 version of __ieee754_rem_pio2l(x,y)
  * 
  * return the remainder of x rem pi/2 in y[0]+y[1] 
@@ -58,7 +54,7 @@
 pio2_3  =  2.0670321098263988236499468110329591e-43L,	/*  0x127044533e63a0105e00000000000.0p-254 */
 pio2_3t = -2.5650587247459238361625433492959285e-65L;	/* -0x159c4ec64ddaeb5f78671cbfb2210.0p-327 */
 
-static inline __always_inline int
+static __always_inline int
 __ieee754_rem_pio2l(long double x, long double *y)
 {
 	union IEEEl2bits u,u1;
diff --git a/libm/upstream-freebsd/lib/msun/ld128/invtrig.c b/libm/upstream-freebsd/lib/msun/ld128/invtrig.c
index 3ba767b..75aef7b 100644
--- a/libm/upstream-freebsd/lib/msun/ld128/invtrig.c
+++ b/libm/upstream-freebsd/lib/msun/ld128/invtrig.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include "invtrig.h"
 
 /*
diff --git a/libm/upstream-freebsd/lib/msun/ld128/invtrig.h b/libm/upstream-freebsd/lib/msun/ld128/invtrig.h
index 3f505c5..4876be8 100644
--- a/libm/upstream-freebsd/lib/msun/ld128/invtrig.h
+++ b/libm/upstream-freebsd/lib/msun/ld128/invtrig.h
@@ -24,8 +24,6 @@
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
- *
- * $FreeBSD$
  */
 
 #include <float.h>
diff --git a/libm/upstream-freebsd/lib/msun/ld128/k_cosl.c b/libm/upstream-freebsd/lib/msun/ld128/k_cosl.c
index 422357b..c756266 100644
--- a/libm/upstream-freebsd/lib/msun/ld128/k_cosl.c
+++ b/libm/upstream-freebsd/lib/msun/ld128/k_cosl.c
@@ -1,4 +1,3 @@
-/* From: @(#)k_cos.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -11,9 +10,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * ld128 version of k_cos.c.  See ../src/k_cos.c for most comments.
  */
diff --git a/libm/upstream-freebsd/lib/msun/ld128/k_expl.h b/libm/upstream-freebsd/lib/msun/ld128/k_expl.h
index 3faf7a7..86811dd 100644
--- a/libm/upstream-freebsd/lib/msun/ld128/k_expl.h
+++ b/libm/upstream-freebsd/lib/msun/ld128/k_expl.h
@@ -30,9 +30,6 @@
  * Optimized by Bruce D. Evans.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * ld128 version of k_expl.h.  See ../ld80/s_expl.c for most comments.
  *
diff --git a/libm/upstream-freebsd/lib/msun/ld128/k_sinl.c b/libm/upstream-freebsd/lib/msun/ld128/k_sinl.c
index 09472d6..f2b17ba 100644
--- a/libm/upstream-freebsd/lib/msun/ld128/k_sinl.c
+++ b/libm/upstream-freebsd/lib/msun/ld128/k_sinl.c
@@ -1,4 +1,3 @@
-/* From: @(#)k_sin.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -11,9 +10,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * ld128 version of k_sin.c.  See ../src/k_sin.c for most comments.
  */
diff --git a/libm/upstream-freebsd/lib/msun/ld128/k_tanl.c b/libm/upstream-freebsd/lib/msun/ld128/k_tanl.c
index d7ec0b9..8aff0d1 100644
--- a/libm/upstream-freebsd/lib/msun/ld128/k_tanl.c
+++ b/libm/upstream-freebsd/lib/msun/ld128/k_tanl.c
@@ -1,5 +1,3 @@
-/* From: @(#)k_tan.c 1.5 04/04/22 SMI */
-
 /*
  * ====================================================
  * Copyright 2004 Sun Microsystems, Inc.  All Rights Reserved.
@@ -11,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * ld128 version of k_tan.c.  See ../src/k_tan.c for most comments.
  */
diff --git a/libm/upstream-freebsd/lib/msun/ld128/s_erfl.c b/libm/upstream-freebsd/lib/msun/ld128/s_erfl.c
index e29c969..227c31f 100644
--- a/libm/upstream-freebsd/lib/msun/ld128/s_erfl.c
+++ b/libm/upstream-freebsd/lib/msun/ld128/s_erfl.c
@@ -1,4 +1,3 @@
-/* @(#)s_erf.c 5.1 93/09/24 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * See s_erf.c for complete comments.
  *
diff --git a/libm/upstream-freebsd/lib/msun/ld128/s_exp2l.c b/libm/upstream-freebsd/lib/msun/ld128/s_exp2l.c
index bcbdc5f..249cb4c 100644
--- a/libm/upstream-freebsd/lib/msun/ld128/s_exp2l.c
+++ b/libm/upstream-freebsd/lib/msun/ld128/s_exp2l.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <float.h>
 #include <stdint.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/ld128/s_expl.c b/libm/upstream-freebsd/lib/msun/ld128/s_expl.c
index 0274a8f..e1358e2 100644
--- a/libm/upstream-freebsd/lib/msun/ld128/s_expl.c
+++ b/libm/upstream-freebsd/lib/msun/ld128/s_expl.c
@@ -28,9 +28,6 @@
  * Optimized by Bruce D. Evans.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * ld128 version of s_expl.c.  See ../ld80/s_expl.c for most comments.
  */
diff --git a/libm/upstream-freebsd/lib/msun/ld128/s_logl.c b/libm/upstream-freebsd/lib/msun/ld128/s_logl.c
index bc53884..e9133ec 100644
--- a/libm/upstream-freebsd/lib/msun/ld128/s_logl.c
+++ b/libm/upstream-freebsd/lib/msun/ld128/s_logl.c
@@ -26,9 +26,6 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /**
  * Implementation of the natural logarithm of x for 128-bit format.
  *
@@ -447,7 +444,7 @@
 #endif
 
 #ifdef STRUCT_RETURN
-static inline __always_inline void
+static __always_inline void
 k_logl(long double x, struct ld *rp)
 #else
 long double
diff --git a/libm/upstream-freebsd/lib/msun/ld128/s_nanl.c b/libm/upstream-freebsd/lib/msun/ld128/s_nanl.c
index cde3f18..b90d024 100644
--- a/libm/upstream-freebsd/lib/msun/ld128/s_nanl.c
+++ b/libm/upstream-freebsd/lib/msun/ld128/s_nanl.c
@@ -24,8 +24,6 @@
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
- *
- * $FreeBSD$
  */
 
 #include <math.h>
diff --git a/libm/upstream-freebsd/lib/msun/src/catrig.c b/libm/upstream-freebsd/lib/msun/src/catrig.c
index 82061b5..45af164 100644
--- a/libm/upstream-freebsd/lib/msun/src/catrig.c
+++ b/libm/upstream-freebsd/lib/msun/src/catrig.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 #include <float.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/src/catrigf.c b/libm/upstream-freebsd/lib/msun/src/catrigf.c
index fb4a6bf..da90629 100644
--- a/libm/upstream-freebsd/lib/msun/src/catrigf.c
+++ b/libm/upstream-freebsd/lib/msun/src/catrigf.c
@@ -40,9 +40,6 @@
  * a few comments on the right of declarations remain.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 #include <float.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/src/catrigl.c b/libm/upstream-freebsd/lib/msun/src/catrigl.c
index e66f87a..faf9d29 100644
--- a/libm/upstream-freebsd/lib/msun/src/catrigl.c
+++ b/libm/upstream-freebsd/lib/msun/src/catrigl.c
@@ -39,9 +39,6 @@
  * a few comments on the right of declarations remain.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 #include <float.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/src/e_acos.c b/libm/upstream-freebsd/lib/msun/src/e_acos.c
index 6623355..af51fe1 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_acos.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_acos.c
@@ -1,5 +1,4 @@
 
-/* @(#)e_acos.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -11,9 +10,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* acos(x)
  * Method :                  
  *	acos(x)  = pi/2 - asin(x)
diff --git a/libm/upstream-freebsd/lib/msun/src/e_acosf.c b/libm/upstream-freebsd/lib/msun/src/e_acosf.c
index 64f1c5a..42ba126 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_acosf.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_acosf.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include "math.h"
 #include "math_private.h"
 
diff --git a/libm/upstream-freebsd/lib/msun/src/e_acosh.c b/libm/upstream-freebsd/lib/msun/src/e_acosh.c
index 7947995..0e5640b 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_acosh.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_acosh.c
@@ -1,5 +1,4 @@
 
-/* @(#)e_acosh.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -12,9 +11,6 @@
  *
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* acosh(x)
  * Method :
  *	Based on 
diff --git a/libm/upstream-freebsd/lib/msun/src/e_acoshf.c b/libm/upstream-freebsd/lib/msun/src/e_acoshf.c
index 781ccf2..b6fbd2c 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_acoshf.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_acoshf.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include "math.h"
 #include "math_private.h"
 
diff --git a/libm/upstream-freebsd/lib/msun/src/e_acoshl.c b/libm/upstream-freebsd/lib/msun/src/e_acoshl.c
index b9f3aed..6bfa624 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_acoshl.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_acoshl.c
@@ -1,6 +1,5 @@
 /* from: FreeBSD: head/lib/msun/src/e_acosh.c 176451 2008-02-22 02:30:36Z das */
 
-/* @(#)e_acosh.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -13,9 +12,6 @@
  *
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * See e_acosh.c for complete comments.
  *
diff --git a/libm/upstream-freebsd/lib/msun/src/e_acosl.c b/libm/upstream-freebsd/lib/msun/src/e_acosl.c
index d33c8fe..2098143 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_acosl.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_acosl.c
@@ -1,5 +1,4 @@
 
-/* @(#)e_acos.c 1.3 95/01/18 */
 /* FreeBSD: head/lib/msun/src/e_acos.c 176451 2008-02-22 02:30:36Z das */
 /*
  * ====================================================
@@ -12,9 +11,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * See comments in e_acos.c.
  * Converted to long double by David Schultz <das@FreeBSD.ORG>.
diff --git a/libm/upstream-freebsd/lib/msun/src/e_asin.c b/libm/upstream-freebsd/lib/msun/src/e_asin.c
index fa180ab..530bf79 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_asin.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_asin.c
@@ -1,5 +1,4 @@
 
-/* @(#)e_asin.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -11,9 +10,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* asin(x)
  * Method :                  
  *	Since  asin(x) = x + x^3/6 + x^5*3/40 + x^7*15/336 + ...
diff --git a/libm/upstream-freebsd/lib/msun/src/e_asinf.c b/libm/upstream-freebsd/lib/msun/src/e_asinf.c
index db4b9b6..a2ee1a1 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_asinf.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_asinf.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include "math.h"
 #include "math_private.h"
 
diff --git a/libm/upstream-freebsd/lib/msun/src/e_asinl.c b/libm/upstream-freebsd/lib/msun/src/e_asinl.c
index a85765f..bb2320e 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_asinl.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_asinl.c
@@ -1,5 +1,4 @@
 
-/* @(#)e_asin.c 1.3 95/01/18 */
 /* FreeBSD: head/lib/msun/src/e_asin.c 176451 2008-02-22 02:30:36Z das */
 /*
  * ====================================================
@@ -12,9 +11,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * See comments in e_asin.c.
  * Converted to long double by David Schultz <das@FreeBSD.ORG>.
diff --git a/libm/upstream-freebsd/lib/msun/src/e_atan2.c b/libm/upstream-freebsd/lib/msun/src/e_atan2.c
index 0b2e721..ab5fc72 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_atan2.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_atan2.c
@@ -1,5 +1,4 @@
 
-/* @(#)e_atan2.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -12,9 +11,6 @@
  *
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* atan2(y,x)
  * Method :
  *	1. Reduce y to positive by atan2(y,x)=-atan2(-y,x).
diff --git a/libm/upstream-freebsd/lib/msun/src/e_atan2f.c b/libm/upstream-freebsd/lib/msun/src/e_atan2f.c
index 4ea001d..408f364 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_atan2f.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_atan2f.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include "math.h"
 #include "math_private.h"
 
diff --git a/libm/upstream-freebsd/lib/msun/src/e_atan2l.c b/libm/upstream-freebsd/lib/msun/src/e_atan2l.c
index 94ebdec..a27fd3e 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_atan2l.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_atan2l.c
@@ -1,5 +1,4 @@
 
-/* @(#)e_atan2.c 1.3 95/01/18 */
 /* FreeBSD: head/lib/msun/src/e_atan2.c 176451 2008-02-22 02:30:36Z das */
 /*
  * ====================================================
@@ -13,9 +12,6 @@
  *
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * See comments in e_atan2.c.
  * Converted to long double by David Schultz <das@FreeBSD.ORG>.
diff --git a/libm/upstream-freebsd/lib/msun/src/e_atanh.c b/libm/upstream-freebsd/lib/msun/src/e_atanh.c
index 41f3bca..0cc0b92 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_atanh.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_atanh.c
@@ -1,5 +1,4 @@
 
-/* @(#)e_atanh.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -12,9 +11,6 @@
  *
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* atanh(x)
  * Method :
  *    1.Reduced x to positive by atanh(-x) = -atanh(x)
diff --git a/libm/upstream-freebsd/lib/msun/src/e_atanhf.c b/libm/upstream-freebsd/lib/msun/src/e_atanhf.c
index 46643be..a2d6b69 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_atanhf.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_atanhf.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include "math.h"
 #include "math_private.h"
 
diff --git a/libm/upstream-freebsd/lib/msun/src/e_atanhl.c b/libm/upstream-freebsd/lib/msun/src/e_atanhl.c
index 11d56ea..cb70727 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_atanhl.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_atanhl.c
@@ -1,6 +1,5 @@
 /* from: FreeBSD: head/lib/msun/src/e_atanh.c 176451 2008-02-22 02:30:36Z das */
 
-/* @(#)e_atanh.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -13,9 +12,6 @@
  *
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * See e_atanh.c for complete comments.
  *
diff --git a/libm/upstream-freebsd/lib/msun/src/e_cosh.c b/libm/upstream-freebsd/lib/msun/src/e_cosh.c
index 071663e..5c3614e 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_cosh.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_cosh.c
@@ -1,5 +1,4 @@
 
-/* @(#)e_cosh.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -11,9 +10,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* cosh(x)
  * Method : 
  * mathematically cosh(x) if defined to be (exp(x)+exp(-x))/2
diff --git a/libm/upstream-freebsd/lib/msun/src/e_coshf.c b/libm/upstream-freebsd/lib/msun/src/e_coshf.c
index 1673315..40443b8 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_coshf.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_coshf.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include "math.h"
 #include "math_private.h"
 
diff --git a/libm/upstream-freebsd/lib/msun/src/e_coshl.c b/libm/upstream-freebsd/lib/msun/src/e_coshl.c
index 4e3b283..efb5094 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_coshl.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_coshl.c
@@ -11,9 +11,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * See e_cosh.c for complete comments.
  *
diff --git a/libm/upstream-freebsd/lib/msun/src/e_exp.c b/libm/upstream-freebsd/lib/msun/src/e_exp.c
deleted file mode 100644
index 59da392..0000000
--- a/libm/upstream-freebsd/lib/msun/src/e_exp.c
+++ /dev/null
@@ -1,164 +0,0 @@
-
-/* @(#)e_exp.c 1.6 04/04/22 */
-/*
- * ====================================================
- * Copyright (C) 2004 by Sun Microsystems, Inc. All rights reserved.
- *
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice 
- * is preserved.
- * ====================================================
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-/* exp(x)
- * Returns the exponential of x.
- *
- * Method
- *   1. Argument reduction:
- *      Reduce x to an r so that |r| <= 0.5*ln2 ~ 0.34658.
- *	Given x, find r and integer k such that
- *
- *               x = k*ln2 + r,  |r| <= 0.5*ln2.  
- *
- *      Here r will be represented as r = hi-lo for better 
- *	accuracy.
- *
- *   2. Approximation of exp(r) by a special rational function on
- *	the interval [0,0.34658]:
- *	Write
- *	    R(r**2) = r*(exp(r)+1)/(exp(r)-1) = 2 + r*r/6 - r**4/360 + ...
- *      We use a special Remes algorithm on [0,0.34658] to generate 
- * 	a polynomial of degree 5 to approximate R. The maximum error 
- *	of this polynomial approximation is bounded by 2**-59. In
- *	other words,
- *	    R(z) ~ 2.0 + P1*z + P2*z**2 + P3*z**3 + P4*z**4 + P5*z**5
- *  	(where z=r*r, and the values of P1 to P5 are listed below)
- *	and
- *	    |                  5          |     -59
- *	    | 2.0+P1*z+...+P5*z   -  R(z) | <= 2 
- *	    |                             |
- *	The computation of exp(r) thus becomes
- *                             2*r
- *		exp(r) = 1 + -------
- *		              R - r
- *                                 r*R1(r)	
- *		       = 1 + r + ----------- (for better accuracy)
- *		                  2 - R1(r)
- *	where
- *			         2       4             10
- *		R1(r) = r - (P1*r  + P2*r  + ... + P5*r   ).
- *	
- *   3. Scale back to obtain exp(x):
- *	From step 1, we have
- *	   exp(x) = 2^k * exp(r)
- *
- * Special cases:
- *	exp(INF) is INF, exp(NaN) is NaN;
- *	exp(-INF) is 0, and
- *	for finite argument, only exp(0)=1 is exact.
- *
- * Accuracy:
- *	according to an error analysis, the error is always less than
- *	1 ulp (unit in the last place).
- *
- * Misc. info.
- *	For IEEE double 
- *	    if x >  7.09782712893383973096e+02 then exp(x) overflow
- *	    if x < -7.45133219101941108420e+02 then exp(x) underflow
- *
- * Constants:
- * The hexadecimal values are the intended ones for the following 
- * constants. The decimal values may be used, provided that the 
- * compiler will convert from decimal to binary accurately enough
- * to produce the hexadecimal values shown.
- */
-
-#include <float.h>
-
-#include "math.h"
-#include "math_private.h"
-
-static const double
-one	= 1.0,
-halF[2]	= {0.5,-0.5,},
-o_threshold=  7.09782712893383973096e+02,  /* 0x40862E42, 0xFEFA39EF */
-u_threshold= -7.45133219101941108420e+02,  /* 0xc0874910, 0xD52D3051 */
-ln2HI[2]   ={ 6.93147180369123816490e-01,  /* 0x3fe62e42, 0xfee00000 */
-	     -6.93147180369123816490e-01,},/* 0xbfe62e42, 0xfee00000 */
-ln2LO[2]   ={ 1.90821492927058770002e-10,  /* 0x3dea39ef, 0x35793c76 */
-	     -1.90821492927058770002e-10,},/* 0xbdea39ef, 0x35793c76 */
-invln2 =  1.44269504088896338700e+00, /* 0x3ff71547, 0x652b82fe */
-P1   =  1.66666666666666019037e-01, /* 0x3FC55555, 0x5555553E */
-P2   = -2.77777777770155933842e-03, /* 0xBF66C16C, 0x16BEBD93 */
-P3   =  6.61375632143793436117e-05, /* 0x3F11566A, 0xAF25DE2C */
-P4   = -1.65339022054652515390e-06, /* 0xBEBBBD41, 0xC5D26BF1 */
-P5   =  4.13813679705723846039e-08; /* 0x3E663769, 0x72BEA4D0 */
-
-static volatile double
-huge	= 1.0e+300,
-twom1000= 9.33263618503218878990e-302;     /* 2**-1000=0x01700000,0*/
-
-double
-exp(double x)	/* default IEEE double exp */
-{
-	double y,hi=0.0,lo=0.0,c,t,twopk;
-	int32_t k=0,xsb;
-	u_int32_t hx;
-
-	GET_HIGH_WORD(hx,x);
-	xsb = (hx>>31)&1;		/* sign bit of x */
-	hx &= 0x7fffffff;		/* high word of |x| */
-
-    /* filter out non-finite argument */
-	if(hx >= 0x40862E42) {			/* if |x|>=709.78... */
-            if(hx>=0x7ff00000) {
-	        u_int32_t lx;
-		GET_LOW_WORD(lx,x);
-		if(((hx&0xfffff)|lx)!=0)
-		     return x+x; 		/* NaN */
-		else return (xsb==0)? x:0.0;	/* exp(+-inf)={inf,0} */
-	    }
-	    if(x > o_threshold) return huge*huge; /* overflow */
-	    if(x < u_threshold) return twom1000*twom1000; /* underflow */
-	}
-
-    /* argument reduction */
-	if(hx > 0x3fd62e42) {		/* if  |x| > 0.5 ln2 */ 
-	    if(hx < 0x3FF0A2B2) {	/* and |x| < 1.5 ln2 */
-		hi = x-ln2HI[xsb]; lo=ln2LO[xsb]; k = 1-xsb-xsb;
-	    } else {
-		k  = (int)(invln2*x+halF[xsb]);
-		t  = k;
-		hi = x - t*ln2HI[0];	/* t*ln2HI is exact here */
-		lo = t*ln2LO[0];
-	    }
-	    STRICT_ASSIGN(double, x, hi - lo);
-	} 
-	else if(hx < 0x3e300000)  {	/* when |x|<2**-28 */
-	    if(huge+x>one) return one+x;/* trigger inexact */
-	}
-	else k = 0;
-
-    /* x is now in primary range */
-	t  = x*x;
-	if(k >= -1021)
-	    INSERT_WORDS(twopk,((u_int32_t)(0x3ff+k))<<20, 0);
-	else
-	    INSERT_WORDS(twopk,((u_int32_t)(0x3ff+(k+1000)))<<20, 0);
-	c  = x - t*(P1+t*(P2+t*(P3+t*(P4+t*P5))));
-	if(k==0) 	return one-((x*c)/(c-2.0)-x); 
-	else 		y = one-((lo-(x*c)/(2.0-c))-hi);
-	if(k >= -1021) {
-	    if (k==1024) return y*2.0*0x1p1023;
-	    return y*twopk;
-	} else {
-	    return y*twopk*twom1000;
-	}
-}
-
-#if (LDBL_MANT_DIG == 53)
-__weak_reference(exp, expl);
-#endif
diff --git a/libm/upstream-freebsd/lib/msun/src/e_expf.c b/libm/upstream-freebsd/lib/msun/src/e_expf.c
deleted file mode 100644
index 620d341..0000000
--- a/libm/upstream-freebsd/lib/msun/src/e_expf.c
+++ /dev/null
@@ -1,98 +0,0 @@
-/* e_expf.c -- float version of e_exp.c.
- * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
- */
-
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunPro, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice
- * is preserved.
- * ====================================================
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <float.h>
-
-#include "math.h"
-#include "math_private.h"
-
-static const float
-one	= 1.0,
-halF[2]	= {0.5,-0.5,},
-o_threshold=  8.8721679688e+01,  /* 0x42b17180 */
-u_threshold= -1.0397208405e+02,  /* 0xc2cff1b5 */
-ln2HI[2]   ={ 6.9314575195e-01,		/* 0x3f317200 */
-	     -6.9314575195e-01,},	/* 0xbf317200 */
-ln2LO[2]   ={ 1.4286067653e-06,  	/* 0x35bfbe8e */
-	     -1.4286067653e-06,},	/* 0xb5bfbe8e */
-invln2 =  1.4426950216e+00, 		/* 0x3fb8aa3b */
-/*
- * Domain [-0.34568, 0.34568], range ~[-4.278e-9, 4.447e-9]:
- * |x*(exp(x)+1)/(exp(x)-1) - p(x)| < 2**-27.74
- */
-P1 =  1.6666625440e-1,		/*  0xaaaa8f.0p-26 */
-P2 = -2.7667332906e-3;		/* -0xb55215.0p-32 */
-
-static volatile float
-huge	= 1.0e+30,
-twom100 = 7.8886090522e-31;      /* 2**-100=0x0d800000 */
-
-float
-expf(float x)
-{
-	float y,hi=0.0,lo=0.0,c,t,twopk;
-	int32_t k=0,xsb;
-	u_int32_t hx;
-
-	GET_FLOAT_WORD(hx,x);
-	xsb = (hx>>31)&1;		/* sign bit of x */
-	hx &= 0x7fffffff;		/* high word of |x| */
-
-    /* filter out non-finite argument */
-	if(hx >= 0x42b17218) {			/* if |x|>=88.721... */
-	    if(hx>0x7f800000)
-		 return x+x;	 		/* NaN */
-            if(hx==0x7f800000)
-		return (xsb==0)? x:0.0;		/* exp(+-inf)={inf,0} */
-	    if(x > o_threshold) return huge*huge; /* overflow */
-	    if(x < u_threshold) return twom100*twom100; /* underflow */
-	}
-
-    /* argument reduction */
-	if(hx > 0x3eb17218) {		/* if  |x| > 0.5 ln2 */
-	    if(hx < 0x3F851592) {	/* and |x| < 1.5 ln2 */
-		hi = x-ln2HI[xsb]; lo=ln2LO[xsb]; k = 1-xsb-xsb;
-	    } else {
-		k  = invln2*x+halF[xsb];
-		t  = k;
-		hi = x - t*ln2HI[0];	/* t*ln2HI is exact here */
-		lo = t*ln2LO[0];
-	    }
-	    STRICT_ASSIGN(float, x, hi - lo);
-	}
-	else if(hx < 0x39000000)  {	/* when |x|<2**-14 */
-	    if(huge+x>one) return one+x;/* trigger inexact */
-	}
-	else k = 0;
-
-    /* x is now in primary range */
-	t  = x*x;
-	if(k >= -125)
-	    SET_FLOAT_WORD(twopk,((u_int32_t)(0x7f+k))<<23);
-	else
-	    SET_FLOAT_WORD(twopk,((u_int32_t)(0x7f+(k+100)))<<23);
-	c  = x - t*(P1+t*P2);
-	if(k==0) 	return one-((x*c)/(c-(float)2.0)-x);
-	else 		y = one-((lo-(x*c)/((float)2.0-c))-hi);
-	if(k >= -125) {
-	    if(k==128) return y*2.0F*0x1p127F;
-	    return y*twopk;
-	} else {
-	    return y*twopk*twom100;
-	}
-}
diff --git a/libm/upstream-freebsd/lib/msun/src/e_fmod.c b/libm/upstream-freebsd/lib/msun/src/e_fmod.c
index 6d5f533..77afd11 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_fmod.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_fmod.c
@@ -1,5 +1,4 @@
 
-/* @(#)e_fmod.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -11,9 +10,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* 
  * fmod(x,y)
  * Return x mod y in exact arithmetic
diff --git a/libm/upstream-freebsd/lib/msun/src/e_fmodf.c b/libm/upstream-freebsd/lib/msun/src/e_fmodf.c
index 3cef921..a7d1a0c 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_fmodf.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_fmodf.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * fmodf(x,y)
  * Return x mod y in exact arithmetic
diff --git a/libm/upstream-freebsd/lib/msun/src/e_fmodl.c b/libm/upstream-freebsd/lib/msun/src/e_fmodl.c
index ad3bcc3..d5997e1 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_fmodl.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_fmodl.c
@@ -1,4 +1,3 @@
-/* @(#)e_fmod.c 1.3 95/01/18 */
 /*-
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <float.h>
 #include <stdint.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/src/e_gamma.c b/libm/upstream-freebsd/lib/msun/src/e_gamma.c
index a13f3e2..43541ad 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_gamma.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_gamma.c
@@ -1,5 +1,4 @@
 
-/* @(#)e_gamma.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -12,9 +11,6 @@
  *
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* gamma(x)
  * Return the logarithm of the Gamma function of x.
  *
diff --git a/libm/upstream-freebsd/lib/msun/src/e_gamma_r.c b/libm/upstream-freebsd/lib/msun/src/e_gamma_r.c
index 2d996ca..f317ae4 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_gamma_r.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_gamma_r.c
@@ -1,5 +1,4 @@
 
-/* @(#)e_gamma_r.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -12,9 +11,6 @@
  *
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* gamma_r(x, signgamp)
  * Reentrant version of the logarithm of the Gamma function 
  * with user provide pointer for the sign of Gamma(x). 
diff --git a/libm/upstream-freebsd/lib/msun/src/e_gammaf.c b/libm/upstream-freebsd/lib/msun/src/e_gammaf.c
index 563c148..98da571 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_gammaf.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_gammaf.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* gammaf(x)
  * Return the logarithm of the Gamma function of x.
  *
diff --git a/libm/upstream-freebsd/lib/msun/src/e_gammaf_r.c b/libm/upstream-freebsd/lib/msun/src/e_gammaf_r.c
index d7fc2db..ae80c1b 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_gammaf_r.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_gammaf_r.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* gammaf_r(x, signgamp)
  * Reentrant version of the logarithm of the Gamma function
  * with user provide pointer for the sign of Gamma(x).
diff --git a/libm/upstream-freebsd/lib/msun/src/e_hypot.c b/libm/upstream-freebsd/lib/msun/src/e_hypot.c
index 8e3f931..a291af5 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_hypot.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_hypot.c
@@ -1,5 +1,4 @@
 
-/* @(#)e_hypot.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -11,9 +10,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* hypot(x,y)
  *
  * Method :                  
diff --git a/libm/upstream-freebsd/lib/msun/src/e_hypotf.c b/libm/upstream-freebsd/lib/msun/src/e_hypotf.c
index a3b8c86..e45486e 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_hypotf.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_hypotf.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include "math.h"
 #include "math_private.h"
 
diff --git a/libm/upstream-freebsd/lib/msun/src/e_hypotl.c b/libm/upstream-freebsd/lib/msun/src/e_hypotl.c
index fc43538..d8e060a 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_hypotl.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_hypotl.c
@@ -1,4 +1,3 @@
-/* From: @(#)e_hypot.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* long double version of hypot().  See e_hypot.c for most comments. */
 
 #include <float.h>
diff --git a/libm/upstream-freebsd/lib/msun/src/e_j0.c b/libm/upstream-freebsd/lib/msun/src/e_j0.c
index c43ab69..b19661c 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_j0.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_j0.c
@@ -1,4 +1,3 @@
-/* @(#)e_j0.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* j0(x), y0(x)
  * Bessel function of the first and second kinds of order zero.
  * Method -- j0(x):
diff --git a/libm/upstream-freebsd/lib/msun/src/e_j0f.c b/libm/upstream-freebsd/lib/msun/src/e_j0f.c
index 290be04..de04a9f 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_j0f.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_j0f.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * See e_j0.c for complete comments.
  */
diff --git a/libm/upstream-freebsd/lib/msun/src/e_j1.c b/libm/upstream-freebsd/lib/msun/src/e_j1.c
index ee3f6fc..06a74b0 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_j1.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_j1.c
@@ -1,4 +1,3 @@
-/* @(#)e_j1.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* j1(x), y1(x)
  * Bessel function of the first and second kinds of order zero.
  * Method -- j1(x):
diff --git a/libm/upstream-freebsd/lib/msun/src/e_j1f.c b/libm/upstream-freebsd/lib/msun/src/e_j1f.c
index e1f4498..28cee8e 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_j1f.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_j1f.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * See e_j1.c for complete comments.
  */
diff --git a/libm/upstream-freebsd/lib/msun/src/e_jn.c b/libm/upstream-freebsd/lib/msun/src/e_jn.c
index 6b876ce..0a71566 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_jn.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_jn.c
@@ -1,4 +1,3 @@
-/* @(#)e_jn.c 1.4 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * jn(n, x), yn(n, x)
  * floating point Bessel's function of the 1st and 2nd kind
diff --git a/libm/upstream-freebsd/lib/msun/src/e_jnf.c b/libm/upstream-freebsd/lib/msun/src/e_jnf.c
index ba58622..b55eaf5 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_jnf.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_jnf.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * See e_jn.c for complete comments.
  */
diff --git a/libm/upstream-freebsd/lib/msun/src/e_lgamma.c b/libm/upstream-freebsd/lib/msun/src/e_lgamma.c
index 9c4a30e..46e7c25 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_lgamma.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_lgamma.c
@@ -1,5 +1,4 @@
 
-/* @(#)e_lgamma.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -12,9 +11,6 @@
  *
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* lgamma(x)
  * Return the logarithm of the Gamma function of x.
  *
diff --git a/libm/upstream-freebsd/lib/msun/src/e_lgamma_r.c b/libm/upstream-freebsd/lib/msun/src/e_lgamma_r.c
index c020b63..30edd65 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_lgamma_r.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_lgamma_r.c
@@ -1,4 +1,3 @@
-/* @(#)e_lgamma_r.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* lgamma_r(x, signgamp)
  * Reentrant version of the logarithm of the Gamma function
  * with user provide pointer for the sign of Gamma(x).
diff --git a/libm/upstream-freebsd/lib/msun/src/e_lgammaf.c b/libm/upstream-freebsd/lib/msun/src/e_lgammaf.c
index 00a816c..cc34e44 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_lgammaf.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_lgammaf.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* lgammaf(x)
  * Return the logarithm of the Gamma function of x.
  *
diff --git a/libm/upstream-freebsd/lib/msun/src/e_lgammaf_r.c b/libm/upstream-freebsd/lib/msun/src/e_lgammaf_r.c
index fdd2321..3f863ce 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_lgammaf_r.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_lgammaf_r.c
@@ -14,9 +14,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include "math.h"
 #include "math_private.h"
 
diff --git a/libm/upstream-freebsd/lib/msun/src/e_lgammal.c b/libm/upstream-freebsd/lib/msun/src/e_lgammal.c
index ebc2fc7..51e3216 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_lgammal.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_lgammal.c
@@ -1,4 +1,3 @@
-/* @(#)e_lgamma.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include "math.h"
 #include "math_private.h"
 
diff --git a/libm/upstream-freebsd/lib/msun/src/e_log.c b/libm/upstream-freebsd/lib/msun/src/e_log.c
deleted file mode 100644
index 03ce820..0000000
--- a/libm/upstream-freebsd/lib/msun/src/e_log.c
+++ /dev/null
@@ -1,147 +0,0 @@
-
-/* @(#)e_log.c 1.3 95/01/18 */
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunSoft, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice 
- * is preserved.
- * ====================================================
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-/* log(x)
- * Return the logrithm of x
- *
- * Method :                  
- *   1. Argument Reduction: find k and f such that 
- *			x = 2^k * (1+f), 
- *	   where  sqrt(2)/2 < 1+f < sqrt(2) .
- *
- *   2. Approximation of log(1+f).
- *	Let s = f/(2+f) ; based on log(1+f) = log(1+s) - log(1-s)
- *		 = 2s + 2/3 s**3 + 2/5 s**5 + .....,
- *	     	 = 2s + s*R
- *      We use a special Reme algorithm on [0,0.1716] to generate 
- * 	a polynomial of degree 14 to approximate R The maximum error 
- *	of this polynomial approximation is bounded by 2**-58.45. In
- *	other words,
- *		        2      4      6      8      10      12      14
- *	    R(z) ~ Lg1*s +Lg2*s +Lg3*s +Lg4*s +Lg5*s  +Lg6*s  +Lg7*s
- *  	(the values of Lg1 to Lg7 are listed in the program)
- *	and
- *	    |      2          14          |     -58.45
- *	    | Lg1*s +...+Lg7*s    -  R(z) | <= 2 
- *	    |                             |
- *	Note that 2s = f - s*f = f - hfsq + s*hfsq, where hfsq = f*f/2.
- *	In order to guarantee error in log below 1ulp, we compute log
- *	by
- *		log(1+f) = f - s*(f - R)	(if f is not too large)
- *		log(1+f) = f - (hfsq - s*(hfsq+R)).	(better accuracy)
- *	
- *	3. Finally,  log(x) = k*ln2 + log(1+f).  
- *			    = k*ln2_hi+(f-(hfsq-(s*(hfsq+R)+k*ln2_lo)))
- *	   Here ln2 is split into two floating point number: 
- *			ln2_hi + ln2_lo,
- *	   where n*ln2_hi is always exact for |n| < 2000.
- *
- * Special cases:
- *	log(x) is NaN with signal if x < 0 (including -INF) ; 
- *	log(+INF) is +INF; log(0) is -INF with signal;
- *	log(NaN) is that NaN with no signal.
- *
- * Accuracy:
- *	according to an error analysis, the error is always less than
- *	1 ulp (unit in the last place).
- *
- * Constants:
- * The hexadecimal values are the intended ones for the following 
- * constants. The decimal values may be used, provided that the 
- * compiler will convert from decimal to binary accurately enough 
- * to produce the hexadecimal values shown.
- */
-
-#include <float.h>
-
-#include "math.h"
-#include "math_private.h"
-
-static const double
-ln2_hi  =  6.93147180369123816490e-01,	/* 3fe62e42 fee00000 */
-ln2_lo  =  1.90821492927058770002e-10,	/* 3dea39ef 35793c76 */
-two54   =  1.80143985094819840000e+16,  /* 43500000 00000000 */
-Lg1 = 6.666666666666735130e-01,  /* 3FE55555 55555593 */
-Lg2 = 3.999999999940941908e-01,  /* 3FD99999 9997FA04 */
-Lg3 = 2.857142874366239149e-01,  /* 3FD24924 94229359 */
-Lg4 = 2.222219843214978396e-01,  /* 3FCC71C5 1D8E78AF */
-Lg5 = 1.818357216161805012e-01,  /* 3FC74664 96CB03DE */
-Lg6 = 1.531383769920937332e-01,  /* 3FC39A09 D078C69F */
-Lg7 = 1.479819860511658591e-01;  /* 3FC2F112 DF3E5244 */
-
-static const double zero   =  0.0;
-static volatile double vzero = 0.0;
-
-double
-log(double x)
-{
-	double hfsq,f,s,z,R,w,t1,t2,dk;
-	int32_t k,hx,i,j;
-	u_int32_t lx;
-
-	EXTRACT_WORDS(hx,lx,x);
-
-	k=0;
-	if (hx < 0x00100000) {			/* x < 2**-1022  */
-	    if (((hx&0x7fffffff)|lx)==0) 
-		return -two54/vzero;		/* log(+-0)=-inf */
-	    if (hx<0) return (x-x)/zero;	/* log(-#) = NaN */
-	    k -= 54; x *= two54; /* subnormal number, scale up x */
-	    GET_HIGH_WORD(hx,x);
-	} 
-	if (hx >= 0x7ff00000) return x+x;
-	k += (hx>>20)-1023;
-	hx &= 0x000fffff;
-	i = (hx+0x95f64)&0x100000;
-	SET_HIGH_WORD(x,hx|(i^0x3ff00000));	/* normalize x or x/2 */
-	k += (i>>20);
-	f = x-1.0;
-	if((0x000fffff&(2+hx))<3) {	/* -2**-20 <= f < 2**-20 */
-	    if(f==zero) {
-		if(k==0) {
-		    return zero;
-		} else {
-		    dk=(double)k;
-		    return dk*ln2_hi+dk*ln2_lo;
-		}
-	    }
-	    R = f*f*(0.5-0.33333333333333333*f);
-	    if(k==0) return f-R; else {dk=(double)k;
-	    	     return dk*ln2_hi-((R-dk*ln2_lo)-f);}
-	}
- 	s = f/(2.0+f); 
-	dk = (double)k;
-	z = s*s;
-	i = hx-0x6147a;
-	w = z*z;
-	j = 0x6b851-hx;
-	t1= w*(Lg2+w*(Lg4+w*Lg6)); 
-	t2= z*(Lg1+w*(Lg3+w*(Lg5+w*Lg7))); 
-	i |= j;
-	R = t2+t1;
-	if(i>0) {
-	    hfsq=0.5*f*f;
-	    if(k==0) return f-(hfsq-s*(hfsq+R)); else
-		     return dk*ln2_hi-((hfsq-(s*(hfsq+R)+dk*ln2_lo))-f);
-	} else {
-	    if(k==0) return f-s*(f-R); else
-		     return dk*ln2_hi-((s*(f-R)-dk*ln2_lo)-f);
-	}
-}
-
-#if (LDBL_MANT_DIG == 53)
-__weak_reference(log, logl);
-#endif
diff --git a/libm/upstream-freebsd/lib/msun/src/e_log10.c b/libm/upstream-freebsd/lib/msun/src/e_log10.c
index 595c238..3647fb0 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_log10.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_log10.c
@@ -1,5 +1,4 @@
 
-/* @(#)e_log10.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -11,9 +10,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * Return the base 10 logarithm of x.  See e_log.c and k_log.h for most
  * comments.
diff --git a/libm/upstream-freebsd/lib/msun/src/e_log10f.c b/libm/upstream-freebsd/lib/msun/src/e_log10f.c
index d0c3a53..ee01d6f 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_log10f.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_log10f.c
@@ -9,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * Float version of e_log10.c.  See the latter for most comments.
  */
diff --git a/libm/upstream-freebsd/lib/msun/src/e_log2.c b/libm/upstream-freebsd/lib/msun/src/e_log2.c
deleted file mode 100644
index 10b1c00..0000000
--- a/libm/upstream-freebsd/lib/msun/src/e_log2.c
+++ /dev/null
@@ -1,117 +0,0 @@
-
-/* @(#)e_log10.c 1.3 95/01/18 */
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunSoft, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice 
- * is preserved.
- * ====================================================
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-/*
- * Return the base 2 logarithm of x.  See e_log.c and k_log.h for most
- * comments.
- *
- * This reduces x to {k, 1+f} exactly as in e_log.c, then calls the kernel,
- * then does the combining and scaling steps
- *    log2(x) = (f - 0.5*f*f + k_log1p(f)) / ln2 + k
- * in not-quite-routine extra precision.
- */
-
-#include <float.h>
-
-#include "math.h"
-#include "math_private.h"
-#include "k_log.h"
-
-static const double
-two54      =  1.80143985094819840000e+16, /* 0x43500000, 0x00000000 */
-ivln2hi    =  1.44269504072144627571e+00, /* 0x3ff71547, 0x65200000 */
-ivln2lo    =  1.67517131648865118353e-10; /* 0x3de705fc, 0x2eefa200 */
-
-static const double zero   =  0.0;
-static volatile double vzero = 0.0;
-
-double
-log2(double x)
-{
-	double f,hfsq,hi,lo,r,val_hi,val_lo,w,y;
-	int32_t i,k,hx;
-	u_int32_t lx;
-
-	EXTRACT_WORDS(hx,lx,x);
-
-	k=0;
-	if (hx < 0x00100000) {			/* x < 2**-1022  */
-	    if (((hx&0x7fffffff)|lx)==0)
-		return -two54/vzero;		/* log(+-0)=-inf */
-	    if (hx<0) return (x-x)/zero;	/* log(-#) = NaN */
-	    k -= 54; x *= two54; /* subnormal number, scale up x */
-	    GET_HIGH_WORD(hx,x);
-	}
-	if (hx >= 0x7ff00000) return x+x;
-	if (hx == 0x3ff00000 && lx == 0)
-	    return zero;			/* log(1) = +0 */
-	k += (hx>>20)-1023;
-	hx &= 0x000fffff;
-	i = (hx+0x95f64)&0x100000;
-	SET_HIGH_WORD(x,hx|(i^0x3ff00000));	/* normalize x or x/2 */
-	k += (i>>20);
-	y = (double)k;
-	f = x - 1.0;
-	hfsq = 0.5*f*f;
-	r = k_log1p(f);
-
-	/*
-	 * f-hfsq must (for args near 1) be evaluated in extra precision
-	 * to avoid a large cancellation when x is near sqrt(2) or 1/sqrt(2).
-	 * This is fairly efficient since f-hfsq only depends on f, so can
-	 * be evaluated in parallel with R.  Not combining hfsq with R also
-	 * keeps R small (though not as small as a true `lo' term would be),
-	 * so that extra precision is not needed for terms involving R.
-	 *
-	 * Compiler bugs involving extra precision used to break Dekker's
-	 * theorem for spitting f-hfsq as hi+lo, unless double_t was used
-	 * or the multi-precision calculations were avoided when double_t
-	 * has extra precision.  These problems are now automatically
-	 * avoided as a side effect of the optimization of combining the
-	 * Dekker splitting step with the clear-low-bits step.
-	 *
-	 * y must (for args near sqrt(2) and 1/sqrt(2)) be added in extra
-	 * precision to avoid a very large cancellation when x is very near
-	 * these values.  Unlike the above cancellations, this problem is
-	 * specific to base 2.  It is strange that adding +-1 is so much
-	 * harder than adding +-ln2 or +-log10_2.
-	 *
-	 * This uses Dekker's theorem to normalize y+val_hi, so the
-	 * compiler bugs are back in some configurations, sigh.  And I
-	 * don't want to used double_t to avoid them, since that gives a
-	 * pessimization and the support for avoiding the pessimization
-	 * is not yet available.
-	 *
-	 * The multi-precision calculations for the multiplications are
-	 * routine.
-	 */
-	hi = f - hfsq;
-	SET_LOW_WORD(hi,0);
-	lo = (f - hi) - hfsq + r;
-	val_hi = hi*ivln2hi;
-	val_lo = (lo+hi)*ivln2lo + lo*ivln2hi;
-
-	/* spadd(val_hi, val_lo, y), except for not using double_t: */
-	w = y + val_hi;
-	val_lo += (y - w) + val_hi;
-	val_hi = w;
-
-	return val_lo + val_hi;
-}
-
-#if (LDBL_MANT_DIG == 53)
-__weak_reference(log2, log2l);
-#endif
diff --git a/libm/upstream-freebsd/lib/msun/src/e_log2f.c b/libm/upstream-freebsd/lib/msun/src/e_log2f.c
deleted file mode 100644
index 956f33a..0000000
--- a/libm/upstream-freebsd/lib/msun/src/e_log2f.c
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunPro, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice
- * is preserved.
- * ====================================================
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-/*
- * Float version of e_log2.c.  See the latter for most comments.
- */
-
-#include "math.h"
-#include "math_private.h"
-#include "k_logf.h"
-
-static const float
-two25      =  3.3554432000e+07, /* 0x4c000000 */
-ivln2hi    =  1.4428710938e+00, /* 0x3fb8b000 */
-ivln2lo    = -1.7605285393e-04; /* 0xb9389ad4 */
-
-static const float zero   =  0.0;
-static volatile float vzero = 0.0;
-
-float
-log2f(float x)
-{
-	float f,hfsq,hi,lo,r,y;
-	int32_t i,k,hx;
-
-	GET_FLOAT_WORD(hx,x);
-
-	k=0;
-	if (hx < 0x00800000) {			/* x < 2**-126  */
-	    if ((hx&0x7fffffff)==0)
-		return -two25/vzero;		/* log(+-0)=-inf */
-	    if (hx<0) return (x-x)/zero;	/* log(-#) = NaN */
-	    k -= 25; x *= two25; /* subnormal number, scale up x */
-	    GET_FLOAT_WORD(hx,x);
-	}
-	if (hx >= 0x7f800000) return x+x;
-	if (hx == 0x3f800000)
-	    return zero;			/* log(1) = +0 */
-	k += (hx>>23)-127;
-	hx &= 0x007fffff;
-	i = (hx+(0x4afb0d))&0x800000;
-	SET_FLOAT_WORD(x,hx|(i^0x3f800000));	/* normalize x or x/2 */
-	k += (i>>23);
-	y = (float)k;
-	f = x - (float)1.0;
-	hfsq = (float)0.5*f*f;
-	r = k_log1pf(f);
-
-	/*
-	 * We no longer need to avoid falling into the multi-precision
-	 * calculations due to compiler bugs breaking Dekker's theorem.
-	 * Keep avoiding this as an optimization.  See e_log2.c for more
-	 * details (some details are here only because the optimization
-	 * is not yet available in double precision).
-	 *
-	 * Another compiler bug turned up.  With gcc on i386,
-	 * (ivln2lo + ivln2hi) would be evaluated in float precision
-	 * despite runtime evaluations using double precision.  So we
-	 * must cast one of its terms to float_t.  This makes the whole
-	 * expression have type float_t, so return is forced to waste
-	 * time clobbering its extra precision.
-	 */
-	if (sizeof(float_t) > sizeof(float))
-		return (r - hfsq + f) * ((float_t)ivln2lo + ivln2hi) + y;
-
-	hi = f - hfsq;
-	GET_FLOAT_WORD(hx,hi);
-	SET_FLOAT_WORD(hi,hx&0xfffff000);
-	lo = (f - hi) - hfsq + r;
-	return (lo+hi)*ivln2lo + lo*ivln2hi + hi*ivln2hi + y;
-}
diff --git a/libm/upstream-freebsd/lib/msun/src/e_logf.c b/libm/upstream-freebsd/lib/msun/src/e_logf.c
deleted file mode 100644
index 68a4d5d..0000000
--- a/libm/upstream-freebsd/lib/msun/src/e_logf.c
+++ /dev/null
@@ -1,89 +0,0 @@
-/* e_logf.c -- float version of e_log.c.
- * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
- */
-
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunPro, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice
- * is preserved.
- * ====================================================
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include "math.h"
-#include "math_private.h"
-
-static const float
-ln2_hi =   6.9313812256e-01,	/* 0x3f317180 */
-ln2_lo =   9.0580006145e-06,	/* 0x3717f7d1 */
-two25 =    3.355443200e+07,	/* 0x4c000000 */
-/* |(log(1+s)-log(1-s))/s - Lg(s)| < 2**-34.24 (~[-4.95e-11, 4.97e-11]). */
-Lg1 =      0xaaaaaa.0p-24,	/* 0.66666662693 */
-Lg2 =      0xccce13.0p-25,	/* 0.40000972152 */
-Lg3 =      0x91e9ee.0p-25,	/* 0.28498786688 */
-Lg4 =      0xf89e26.0p-26;	/* 0.24279078841 */
-
-static const float zero   =  0.0;
-static volatile float vzero = 0.0;
-
-float
-logf(float x)
-{
-	float hfsq,f,s,z,R,w,t1,t2,dk;
-	int32_t k,ix,i,j;
-
-	GET_FLOAT_WORD(ix,x);
-
-	k=0;
-	if (ix < 0x00800000) {			/* x < 2**-126  */
-	    if ((ix&0x7fffffff)==0)
-		return -two25/vzero;		/* log(+-0)=-inf */
-	    if (ix<0) return (x-x)/zero;	/* log(-#) = NaN */
-	    k -= 25; x *= two25; /* subnormal number, scale up x */
-	    GET_FLOAT_WORD(ix,x);
-	}
-	if (ix >= 0x7f800000) return x+x;
-	k += (ix>>23)-127;
-	ix &= 0x007fffff;
-	i = (ix+(0x95f64<<3))&0x800000;
-	SET_FLOAT_WORD(x,ix|(i^0x3f800000));	/* normalize x or x/2 */
-	k += (i>>23);
-	f = x-(float)1.0;
-	if((0x007fffff&(0x8000+ix))<0xc000) {	/* -2**-9 <= f < 2**-9 */
-	    if(f==zero) {
-		if(k==0) {
-		    return zero;
-		} else {
-		    dk=(float)k;
-		    return dk*ln2_hi+dk*ln2_lo;
-		}
-	    }
-	    R = f*f*((float)0.5-(float)0.33333333333333333*f);
-	    if(k==0) return f-R; else {dk=(float)k;
-	    	     return dk*ln2_hi-((R-dk*ln2_lo)-f);}
-	}
- 	s = f/((float)2.0+f);
-	dk = (float)k;
-	z = s*s;
-	i = ix-(0x6147a<<3);
-	w = z*z;
-	j = (0x6b851<<3)-ix;
-	t1= w*(Lg2+w*Lg4);
-	t2= z*(Lg1+w*Lg3);
-	i |= j;
-	R = t2+t1;
-	if(i>0) {
-	    hfsq=(float)0.5*f*f;
-	    if(k==0) return f-(hfsq-s*(hfsq+R)); else
-		     return dk*ln2_hi-((hfsq-(s*(hfsq+R)+dk*ln2_lo))-f);
-	} else {
-	    if(k==0) return f-s*(f-R); else
-		     return dk*ln2_hi-((s*(f-R)-dk*ln2_lo)-f);
-	}
-}
diff --git a/libm/upstream-freebsd/lib/msun/src/e_pow.c b/libm/upstream-freebsd/lib/msun/src/e_pow.c
deleted file mode 100644
index adc64c9..0000000
--- a/libm/upstream-freebsd/lib/msun/src/e_pow.c
+++ /dev/null
@@ -1,314 +0,0 @@
-/* @(#)e_pow.c 1.5 04/04/22 SMI */
-/*
- * ====================================================
- * Copyright (C) 2004 by Sun Microsystems, Inc. All rights reserved.
- *
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice
- * is preserved.
- * ====================================================
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-/* pow(x,y) return x**y
- *
- *		      n
- * Method:  Let x =  2   * (1+f)
- *	1. Compute and return log2(x) in two pieces:
- *		log2(x) = w1 + w2,
- *	   where w1 has 53-24 = 29 bit trailing zeros.
- *	2. Perform y*log2(x) = n+y' by simulating multi-precision
- *	   arithmetic, where |y'|<=0.5.
- *	3. Return x**y = 2**n*exp(y'*log2)
- *
- * Special cases:
- *	1.  (anything) ** 0  is 1
- *	2.  (anything) ** 1  is itself
- *	3.  (anything) ** NAN is NAN except 1 ** NAN = 1
- *	4.  NAN ** (anything except 0) is NAN
- *	5.  +-(|x| > 1) **  +INF is +INF
- *	6.  +-(|x| > 1) **  -INF is +0
- *	7.  +-(|x| < 1) **  +INF is +0
- *	8.  +-(|x| < 1) **  -INF is +INF
- *	9.  +-1         ** +-INF is 1
- *	10. +0 ** (+anything except 0, NAN)               is +0
- *	11. -0 ** (+anything except 0, NAN, odd integer)  is +0
- *	12. +0 ** (-anything except 0, NAN)               is +INF
- *	13. -0 ** (-anything except 0, NAN, odd integer)  is +INF
- *	14. -0 ** (odd integer) = -( +0 ** (odd integer) )
- *	15. +INF ** (+anything except 0,NAN) is +INF
- *	16. +INF ** (-anything except 0,NAN) is +0
- *	17. -INF ** (anything)  = -0 ** (-anything)
- *	18. (-anything) ** (integer) is (-1)**(integer)*(+anything**integer)
- *	19. (-anything except 0 and inf) ** (non-integer) is NAN
- *
- * Accuracy:
- *	pow(x,y) returns x**y nearly rounded. In particular
- *			pow(integer,integer)
- *	always returns the correct integer provided it is
- *	representable.
- *
- * Constants :
- * The hexadecimal values are the intended ones for the following
- * constants. The decimal values may be used, provided that the
- * compiler will convert from decimal to binary accurately enough
- * to produce the hexadecimal values shown.
- */
-
-#include <float.h>
-#include "math.h"
-#include "math_private.h"
-
-static const double
-bp[] = {1.0, 1.5,},
-dp_h[] = { 0.0, 5.84962487220764160156e-01,}, /* 0x3FE2B803, 0x40000000 */
-dp_l[] = { 0.0, 1.35003920212974897128e-08,}, /* 0x3E4CFDEB, 0x43CFD006 */
-zero    =  0.0,
-half    =  0.5,
-qrtr    =  0.25,
-thrd    =  3.3333333333333331e-01, /* 0x3fd55555, 0x55555555 */
-one	=  1.0,
-two	=  2.0,
-two53	=  9007199254740992.0,	/* 0x43400000, 0x00000000 */
-huge	=  1.0e300,
-tiny    =  1.0e-300,
-	/* poly coefs for (3/2)*(log(x)-2s-2/3*s**3 */
-L1  =  5.99999999999994648725e-01, /* 0x3FE33333, 0x33333303 */
-L2  =  4.28571428578550184252e-01, /* 0x3FDB6DB6, 0xDB6FABFF */
-L3  =  3.33333329818377432918e-01, /* 0x3FD55555, 0x518F264D */
-L4  =  2.72728123808534006489e-01, /* 0x3FD17460, 0xA91D4101 */
-L5  =  2.30660745775561754067e-01, /* 0x3FCD864A, 0x93C9DB65 */
-L6  =  2.06975017800338417784e-01, /* 0x3FCA7E28, 0x4A454EEF */
-P1   =  1.66666666666666019037e-01, /* 0x3FC55555, 0x5555553E */
-P2   = -2.77777777770155933842e-03, /* 0xBF66C16C, 0x16BEBD93 */
-P3   =  6.61375632143793436117e-05, /* 0x3F11566A, 0xAF25DE2C */
-P4   = -1.65339022054652515390e-06, /* 0xBEBBBD41, 0xC5D26BF1 */
-P5   =  4.13813679705723846039e-08, /* 0x3E663769, 0x72BEA4D0 */
-lg2  =  6.93147180559945286227e-01, /* 0x3FE62E42, 0xFEFA39EF */
-lg2_h  =  6.93147182464599609375e-01, /* 0x3FE62E43, 0x00000000 */
-lg2_l  = -1.90465429995776804525e-09, /* 0xBE205C61, 0x0CA86C39 */
-ovt =  8.0085662595372944372e-0017, /* -(1024-log2(ovfl+.5ulp)) */
-cp    =  9.61796693925975554329e-01, /* 0x3FEEC709, 0xDC3A03FD =2/(3ln2) */
-cp_h  =  9.61796700954437255859e-01, /* 0x3FEEC709, 0xE0000000 =(float)cp */
-cp_l  = -7.02846165095275826516e-09, /* 0xBE3E2FE0, 0x145B01F5 =tail of cp_h*/
-ivln2    =  1.44269504088896338700e+00, /* 0x3FF71547, 0x652B82FE =1/ln2 */
-ivln2_h  =  1.44269502162933349609e+00, /* 0x3FF71547, 0x60000000 =24b 1/ln2*/
-ivln2_l  =  1.92596299112661746887e-08; /* 0x3E54AE0B, 0xF85DDF44 =1/ln2 tail*/
-
-double
-pow(double x, double y)
-{
-	double z,ax,z_h,z_l,p_h,p_l;
-	double y1,t1,t2,r,s,t,u,v,w;
-	int32_t i,j,k,yisint,n;
-	int32_t hx,hy,ix,iy;
-	u_int32_t lx,ly;
-
-	EXTRACT_WORDS(hx,lx,x);
-	EXTRACT_WORDS(hy,ly,y);
-	ix = hx&0x7fffffff;  iy = hy&0x7fffffff;
-
-    /* y==zero: x**0 = 1 */
-	if((iy|ly)==0) return one;
-
-    /* x==1: 1**y = 1, even if y is NaN */
-	if (hx==0x3ff00000 && lx == 0) return one;
-
-    /* y!=zero: result is NaN if either arg is NaN */
-	if(ix > 0x7ff00000 || ((ix==0x7ff00000)&&(lx!=0)) ||
-	   iy > 0x7ff00000 || ((iy==0x7ff00000)&&(ly!=0)))
-	    return nan_mix(x, y);
-
-    /* determine if y is an odd int when x < 0
-     * yisint = 0	... y is not an integer
-     * yisint = 1	... y is an odd int
-     * yisint = 2	... y is an even int
-     */
-	yisint  = 0;
-	if(hx<0) {
-	    if(iy>=0x43400000) yisint = 2; /* even integer y */
-	    else if(iy>=0x3ff00000) {
-		k = (iy>>20)-0x3ff;	   /* exponent */
-		if(k>20) {
-		    j = ly>>(52-k);
-		    if(((u_int32_t)j<<(52-k))==ly) yisint = 2-(j&1);
-		} else if(ly==0) {
-		    j = iy>>(20-k);
-		    if((j<<(20-k))==iy) yisint = 2-(j&1);
-		}
-	    }
-	}
-
-    /* special value of y */
-	if(ly==0) {
-	    if (iy==0x7ff00000) {	/* y is +-inf */
-	        if(((ix-0x3ff00000)|lx)==0)
-		    return  one;	/* (-1)**+-inf is 1 */
-	        else if (ix >= 0x3ff00000)/* (|x|>1)**+-inf = inf,0 */
-		    return (hy>=0)? y: zero;
-	        else			/* (|x|<1)**-,+inf = inf,0 */
-		    return (hy<0)?-y: zero;
-	    }
-	    if(iy==0x3ff00000) {	/* y is  +-1 */
-		if(hy<0) return one/x; else return x;
-	    }
-	    if(hy==0x40000000) return x*x; /* y is  2 */
-	    if(hy==0x3fe00000) {	/* y is  0.5 */
-		if(hx>=0)	/* x >= +0 */
-		return sqrt(x);
-	    }
-	}
-
-	ax   = fabs(x);
-    /* special value of x */
-	if(lx==0) {
-	    if(ix==0x7ff00000||ix==0||ix==0x3ff00000){
-		z = ax;			/*x is +-0,+-inf,+-1*/
-		if(hy<0) z = one/z;	/* z = (1/|x|) */
-		if(hx<0) {
-		    if(((ix-0x3ff00000)|yisint)==0) {
-			z = (z-z)/(z-z); /* (-1)**non-int is NaN */
-		    } else if(yisint==1)
-			z = -z;		/* (x<0)**odd = -(|x|**odd) */
-		}
-		return z;
-	    }
-	}
-
-    /* CYGNUS LOCAL + fdlibm-5.3 fix: This used to be
-	n = (hx>>31)+1;
-       but ANSI C says a right shift of a signed negative quantity is
-       implementation defined.  */
-	n = ((u_int32_t)hx>>31)-1;
-
-    /* (x<0)**(non-int) is NaN */
-	if((n|yisint)==0) return (x-x)/(x-x);
-
-	s = one; /* s (sign of result -ve**odd) = -1 else = 1 */
-	if((n|(yisint-1))==0) s = -one;/* (-ve)**(odd int) */
-
-    /* |y| is huge */
-	if(iy>0x41e00000) { /* if |y| > 2**31 */
-	    if(iy>0x43f00000){	/* if |y| > 2**64, must o/uflow */
-		if(ix<=0x3fefffff) return (hy<0)? huge*huge:tiny*tiny;
-		if(ix>=0x3ff00000) return (hy>0)? huge*huge:tiny*tiny;
-	    }
-	/* over/underflow if x is not close to one */
-	    if(ix<0x3fefffff) return (hy<0)? s*huge*huge:s*tiny*tiny;
-	    if(ix>0x3ff00000) return (hy>0)? s*huge*huge:s*tiny*tiny;
-	/* now |1-x| is tiny <= 2**-20, suffice to compute
-	   log(x) by x-x^2/2+x^3/3-x^4/4 */
-	    t = ax-one;		/* t has 20 trailing zeros */
-	    w = (t*t)*(half-t*(thrd-t*qrtr));
-	    u = ivln2_h*t;	/* ivln2_h has 21 sig. bits */
-	    v = t*ivln2_l-w*ivln2;
-	    t1 = u+v;
-	    SET_LOW_WORD(t1,0);
-	    t2 = v-(t1-u);
-	} else {
-	    double ss,s2,s_h,s_l,t_h,t_l;
-	    n = 0;
-	/* take care subnormal number */
-	    if(ix<0x00100000)
-		{ax *= two53; n -= 53; GET_HIGH_WORD(ix,ax); }
-	    n  += ((ix)>>20)-0x3ff;
-	    j  = ix&0x000fffff;
-	/* determine interval */
-	    ix = j|0x3ff00000;		/* normalize ix */
-	    if(j<=0x3988E) k=0;		/* |x|<sqrt(3/2) */
-	    else if(j<0xBB67A) k=1;	/* |x|<sqrt(3)   */
-	    else {k=0;n+=1;ix -= 0x00100000;}
-	    SET_HIGH_WORD(ax,ix);
-
-	/* compute ss = s_h+s_l = (x-1)/(x+1) or (x-1.5)/(x+1.5) */
-	    u = ax-bp[k];		/* bp[0]=1.0, bp[1]=1.5 */
-	    v = one/(ax+bp[k]);
-	    ss = u*v;
-	    s_h = ss;
-	    SET_LOW_WORD(s_h,0);
-	/* t_h=ax+bp[k] High */
-	    t_h = zero;
-	    SET_HIGH_WORD(t_h,((ix>>1)|0x20000000)+0x00080000+(k<<18));
-	    t_l = ax - (t_h-bp[k]);
-	    s_l = v*((u-s_h*t_h)-s_h*t_l);
-	/* compute log(ax) */
-	    s2 = ss*ss;
-	    r = s2*s2*(L1+s2*(L2+s2*(L3+s2*(L4+s2*(L5+s2*L6)))));
-	    r += s_l*(s_h+ss);
-	    s2  = s_h*s_h;
-	    t_h = 3+s2+r;
-	    SET_LOW_WORD(t_h,0);
-	    t_l = r-((t_h-3)-s2);
-	/* u+v = ss*(1+...) */
-	    u = s_h*t_h;
-	    v = s_l*t_h+t_l*ss;
-	/* 2/(3log2)*(ss+...) */
-	    p_h = u+v;
-	    SET_LOW_WORD(p_h,0);
-	    p_l = v-(p_h-u);
-	    z_h = cp_h*p_h;		/* cp_h+cp_l = 2/(3*log2) */
-	    z_l = cp_l*p_h+p_l*cp+dp_l[k];
-	/* log2(ax) = (ss+..)*2/(3*log2) = n + dp_h + z_h + z_l */
-	    t = n;
-	    t1 = (((z_h+z_l)+dp_h[k])+t);
-	    SET_LOW_WORD(t1,0);
-	    t2 = z_l-(((t1-t)-dp_h[k])-z_h);
-	}
-
-    /* split up y into y1+y2 and compute (y1+y2)*(t1+t2) */
-	y1  = y;
-	SET_LOW_WORD(y1,0);
-	p_l = (y-y1)*t1+y*t2;
-	p_h = y1*t1;
-	z = p_l+p_h;
-	EXTRACT_WORDS(j,i,z);
-	if (j>=0x40900000) {				/* z >= 1024 */
-	    if(((j-0x40900000)|i)!=0)			/* if z > 1024 */
-		return s*huge*huge;			/* overflow */
-	    else {
-		if(p_l+ovt>z-p_h) return s*huge*huge;	/* overflow */
-	    }
-	} else if((j&0x7fffffff)>=0x4090cc00 ) {	/* z <= -1075 */
-	    if(((j-0xc090cc00)|i)!=0) 		/* z < -1075 */
-		return s*tiny*tiny;		/* underflow */
-	    else {
-		if(p_l<=z-p_h) return s*tiny*tiny;	/* underflow */
-	    }
-	}
-    /*
-     * compute 2**(p_h+p_l)
-     */
-	i = j&0x7fffffff;
-	k = (i>>20)-0x3ff;
-	n = 0;
-	if(i>0x3fe00000) {		/* if |z| > 0.5, set n = [z+0.5] */
-	    n = j+(0x00100000>>(k+1));
-	    k = ((n&0x7fffffff)>>20)-0x3ff;	/* new k for n */
-	    t = zero;
-	    SET_HIGH_WORD(t,n&~(0x000fffff>>k));
-	    n = ((n&0x000fffff)|0x00100000)>>(20-k);
-	    if(j<0) n = -n;
-	    p_h -= t;
-	}
-	t = p_l+p_h;
-	SET_LOW_WORD(t,0);
-	u = t*lg2_h;
-	v = (p_l-(t-p_h))*lg2+t*lg2_l;
-	z = u+v;
-	w = v-(z-u);
-	t  = z*z;
-	t1  = z - t*(P1+t*(P2+t*(P3+t*(P4+t*P5))));
-	r  = (z*t1)/(t1-two)-(w+z*w);
-	z  = one-(r-z);
-	GET_HIGH_WORD(j,z);
-	j += (n<<20);
-	if((j>>20)<=0) z = scalbn(z,n);	/* subnormal output */
-	else SET_HIGH_WORD(z,j);
-	return s*z;
-}
-
-#if (LDBL_MANT_DIG == 53)
-__weak_reference(pow, powl);
-#endif
diff --git a/libm/upstream-freebsd/lib/msun/src/e_powf.c b/libm/upstream-freebsd/lib/msun/src/e_powf.c
deleted file mode 100644
index f5a2c70..0000000
--- a/libm/upstream-freebsd/lib/msun/src/e_powf.c
+++ /dev/null
@@ -1,252 +0,0 @@
-/* e_powf.c -- float version of e_pow.c.
- * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
- */
-
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunPro, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice
- * is preserved.
- * ====================================================
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include "math.h"
-#include "math_private.h"
-
-static const float
-bp[] = {1.0, 1.5,},
-dp_h[] = { 0.0, 5.84960938e-01,}, /* 0x3f15c000 */
-dp_l[] = { 0.0, 1.56322085e-06,}, /* 0x35d1cfdc */
-zero    =  0.0,
-half    =  0.5,
-qrtr    =  0.25,
-thrd    =  3.33333343e-01, /* 0x3eaaaaab */
-one	=  1.0,
-two	=  2.0,
-two24	=  16777216.0,	/* 0x4b800000 */
-huge	=  1.0e30,
-tiny    =  1.0e-30,
-	/* poly coefs for (3/2)*(log(x)-2s-2/3*s**3 */
-L1  =  6.0000002384e-01, /* 0x3f19999a */
-L2  =  4.2857143283e-01, /* 0x3edb6db7 */
-L3  =  3.3333334327e-01, /* 0x3eaaaaab */
-L4  =  2.7272811532e-01, /* 0x3e8ba305 */
-L5  =  2.3066075146e-01, /* 0x3e6c3255 */
-L6  =  2.0697501302e-01, /* 0x3e53f142 */
-P1   =  1.6666667163e-01, /* 0x3e2aaaab */
-P2   = -2.7777778450e-03, /* 0xbb360b61 */
-P3   =  6.6137559770e-05, /* 0x388ab355 */
-P4   = -1.6533901999e-06, /* 0xb5ddea0e */
-P5   =  4.1381369442e-08, /* 0x3331bb4c */
-lg2  =  6.9314718246e-01, /* 0x3f317218 */
-lg2_h  =  6.93145752e-01, /* 0x3f317200 */
-lg2_l  =  1.42860654e-06, /* 0x35bfbe8c */
-ovt =  4.2995665694e-08, /* -(128-log2(ovfl+.5ulp)) */
-cp    =  9.6179670095e-01, /* 0x3f76384f =2/(3ln2) */
-cp_h  =  9.6191406250e-01, /* 0x3f764000 =12b cp */
-cp_l  = -1.1736857402e-04, /* 0xb8f623c6 =tail of cp_h */
-ivln2    =  1.4426950216e+00, /* 0x3fb8aa3b =1/ln2 */
-ivln2_h  =  1.4426879883e+00, /* 0x3fb8aa00 =16b 1/ln2*/
-ivln2_l  =  7.0526075433e-06; /* 0x36eca570 =1/ln2 tail*/
-
-float
-powf(float x, float y)
-{
-	float z,ax,z_h,z_l,p_h,p_l;
-	float y1,t1,t2,r,s,sn,t,u,v,w;
-	int32_t i,j,k,yisint,n;
-	int32_t hx,hy,ix,iy,is;
-
-	GET_FLOAT_WORD(hx,x);
-	GET_FLOAT_WORD(hy,y);
-	ix = hx&0x7fffffff;  iy = hy&0x7fffffff;
-
-    /* y==zero: x**0 = 1 */
-	if(iy==0) return one;
-
-    /* x==1: 1**y = 1, even if y is NaN */
-	if (hx==0x3f800000) return one;
-
-    /* y!=zero: result is NaN if either arg is NaN */
-	if(ix > 0x7f800000 ||
-	   iy > 0x7f800000)
-	    return nan_mix(x, y);
-
-    /* determine if y is an odd int when x < 0
-     * yisint = 0	... y is not an integer
-     * yisint = 1	... y is an odd int
-     * yisint = 2	... y is an even int
-     */
-	yisint  = 0;
-	if(hx<0) {
-	    if(iy>=0x4b800000) yisint = 2; /* even integer y */
-	    else if(iy>=0x3f800000) {
-		k = (iy>>23)-0x7f;	   /* exponent */
-		j = iy>>(23-k);
-		if((j<<(23-k))==iy) yisint = 2-(j&1);
-	    }
-	}
-
-    /* special value of y */
-	if (iy==0x7f800000) {	/* y is +-inf */
-	    if (ix==0x3f800000)
-	        return  one;	/* (-1)**+-inf is NaN */
-	    else if (ix > 0x3f800000)/* (|x|>1)**+-inf = inf,0 */
-	        return (hy>=0)? y: zero;
-	    else			/* (|x|<1)**-,+inf = inf,0 */
-	        return (hy<0)?-y: zero;
-	}
-	if(iy==0x3f800000) {	/* y is  +-1 */
-	    if(hy<0) return one/x; else return x;
-	}
-	if(hy==0x40000000) return x*x; /* y is  2 */
-	if(hy==0x3f000000) {	/* y is  0.5 */
-	    if(hx>=0)	/* x >= +0 */
-	    return sqrtf(x);
-	}
-
-	ax   = fabsf(x);
-    /* special value of x */
-	if(ix==0x7f800000||ix==0||ix==0x3f800000){
-	    z = ax;			/*x is +-0,+-inf,+-1*/
-	    if(hy<0) z = one/z;	/* z = (1/|x|) */
-	    if(hx<0) {
-		if(((ix-0x3f800000)|yisint)==0) {
-		    z = (z-z)/(z-z); /* (-1)**non-int is NaN */
-		} else if(yisint==1)
-		    z = -z;		/* (x<0)**odd = -(|x|**odd) */
-	    }
-	    return z;
-	}
-
-	n = ((u_int32_t)hx>>31)-1;
-
-    /* (x<0)**(non-int) is NaN */
-	if((n|yisint)==0) return (x-x)/(x-x);
-
-	sn = one; /* s (sign of result -ve**odd) = -1 else = 1 */
-	if((n|(yisint-1))==0) sn = -one;/* (-ve)**(odd int) */
-
-    /* |y| is huge */
-	if(iy>0x4d000000) { /* if |y| > 2**27 */
-	/* over/underflow if x is not close to one */
-	    if(ix<0x3f7ffff6) return (hy<0)? sn*huge*huge:sn*tiny*tiny;
-	    if(ix>0x3f800007) return (hy>0)? sn*huge*huge:sn*tiny*tiny;
-	/* now |1-x| is tiny <= 2**-20, suffice to compute
-	   log(x) by x-x^2/2+x^3/3-x^4/4 */
-	    t = ax-1;		/* t has 20 trailing zeros */
-	    w = (t*t)*(half-t*(thrd-t*qrtr));
-	    u = ivln2_h*t;	/* ivln2_h has 16 sig. bits */
-	    v = t*ivln2_l-w*ivln2;
-	    t1 = u+v;
-	    GET_FLOAT_WORD(is,t1);
-	    SET_FLOAT_WORD(t1,is&0xfffff000);
-	    t2 = v-(t1-u);
-	} else {
-	    float s2,s_h,s_l,t_h,t_l;
-	    n = 0;
-	/* take care subnormal number */
-	    if(ix<0x00800000)
-		{ax *= two24; n -= 24; GET_FLOAT_WORD(ix,ax); }
-	    n  += ((ix)>>23)-0x7f;
-	    j  = ix&0x007fffff;
-	/* determine interval */
-	    ix = j|0x3f800000;		/* normalize ix */
-	    if(j<=0x1cc471) k=0;	/* |x|<sqrt(3/2) */
-	    else if(j<0x5db3d7) k=1;	/* |x|<sqrt(3)   */
-	    else {k=0;n+=1;ix -= 0x00800000;}
-	    SET_FLOAT_WORD(ax,ix);
-
-	/* compute s = s_h+s_l = (x-1)/(x+1) or (x-1.5)/(x+1.5) */
-	    u = ax-bp[k];		/* bp[0]=1.0, bp[1]=1.5 */
-	    v = one/(ax+bp[k]);
-	    s = u*v;
-	    s_h = s;
-	    GET_FLOAT_WORD(is,s_h);
-	    SET_FLOAT_WORD(s_h,is&0xfffff000);
-	/* t_h=ax+bp[k] High */
-	    is = ((ix>>1)&0xfffff000)|0x20000000;
-	    SET_FLOAT_WORD(t_h,is+0x00400000+(k<<21));
-	    t_l = ax - (t_h-bp[k]);
-	    s_l = v*((u-s_h*t_h)-s_h*t_l);
-	/* compute log(ax) */
-	    s2 = s*s;
-	    r = s2*s2*(L1+s2*(L2+s2*(L3+s2*(L4+s2*(L5+s2*L6)))));
-	    r += s_l*(s_h+s);
-	    s2  = s_h*s_h;
-	    t_h = 3+s2+r;
-	    GET_FLOAT_WORD(is,t_h);
-	    SET_FLOAT_WORD(t_h,is&0xfffff000);
-	    t_l = r-((t_h-3)-s2);
-	/* u+v = s*(1+...) */
-	    u = s_h*t_h;
-	    v = s_l*t_h+t_l*s;
-	/* 2/(3log2)*(s+...) */
-	    p_h = u+v;
-	    GET_FLOAT_WORD(is,p_h);
-	    SET_FLOAT_WORD(p_h,is&0xfffff000);
-	    p_l = v-(p_h-u);
-	    z_h = cp_h*p_h;		/* cp_h+cp_l = 2/(3*log2) */
-	    z_l = cp_l*p_h+p_l*cp+dp_l[k];
-	/* log2(ax) = (s+..)*2/(3*log2) = n + dp_h + z_h + z_l */
-	    t = n;
-	    t1 = (((z_h+z_l)+dp_h[k])+t);
-	    GET_FLOAT_WORD(is,t1);
-	    SET_FLOAT_WORD(t1,is&0xfffff000);
-	    t2 = z_l-(((t1-t)-dp_h[k])-z_h);
-	}
-
-    /* split up y into y1+y2 and compute (y1+y2)*(t1+t2) */
-	GET_FLOAT_WORD(is,y);
-	SET_FLOAT_WORD(y1,is&0xfffff000);
-	p_l = (y-y1)*t1+y*t2;
-	p_h = y1*t1;
-	z = p_l+p_h;
-	GET_FLOAT_WORD(j,z);
-	if (j>0x43000000)				/* if z > 128 */
-	    return sn*huge*huge;			/* overflow */
-	else if (j==0x43000000) {			/* if z == 128 */
-	    if(p_l+ovt>z-p_h) return sn*huge*huge;	/* overflow */
-	}
-	else if ((j&0x7fffffff)>0x43160000)		/* z <= -150 */
-	    return sn*tiny*tiny;			/* underflow */
-	else if (j==0xc3160000){			/* z == -150 */
-	    if(p_l<=z-p_h) return sn*tiny*tiny;		/* underflow */
-	}
-    /*
-     * compute 2**(p_h+p_l)
-     */
-	i = j&0x7fffffff;
-	k = (i>>23)-0x7f;
-	n = 0;
-	if(i>0x3f000000) {		/* if |z| > 0.5, set n = [z+0.5] */
-	    n = j+(0x00800000>>(k+1));
-	    k = ((n&0x7fffffff)>>23)-0x7f;	/* new k for n */
-	    SET_FLOAT_WORD(t,n&~(0x007fffff>>k));
-	    n = ((n&0x007fffff)|0x00800000)>>(23-k);
-	    if(j<0) n = -n;
-	    p_h -= t;
-	}
-	t = p_l+p_h;
-	GET_FLOAT_WORD(is,t);
-	SET_FLOAT_WORD(t,is&0xffff8000);
-	u = t*lg2_h;
-	v = (p_l-(t-p_h))*lg2+t*lg2_l;
-	z = u+v;
-	w = v-(z-u);
-	t  = z*z;
-	t1  = z - t*(P1+t*(P2+t*(P3+t*(P4+t*P5))));
-	r  = (z*t1)/(t1-two)-(w+z*w);
-	z  = one-(r-z);
-	GET_FLOAT_WORD(j,z);
-	j += (n<<23);
-	if((j>>23)<=0) z = scalbnf(z,n);	/* subnormal output */
-	else SET_FLOAT_WORD(z,j);
-	return sn*z;
-}
diff --git a/libm/upstream-freebsd/lib/msun/src/e_rem_pio2.c b/libm/upstream-freebsd/lib/msun/src/e_rem_pio2.c
index 47b6513..16a57a0 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_rem_pio2.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_rem_pio2.c
@@ -1,5 +1,4 @@
 
-/* @(#)e_rem_pio2.c 1.4 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -13,9 +12,6 @@
  * Optimized by Bruce D. Evans.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* __ieee754_rem_pio2(x,y)
  * 
  * return the remainder of x rem pi/2 in y[0]+y[1] 
@@ -49,7 +45,7 @@
 pio2_3t =  8.47842766036889956997e-32; /* 0x397B839A, 0x252049C1 */
 
 #ifdef INLINE_REM_PIO2
-static __inline __always_inline
+static __always_inline
 #endif
 int
 __ieee754_rem_pio2(double x, double *y)
@@ -166,7 +162,7 @@
     /* set z = scalbn(|x|,ilogb(x)-23) */
 	GET_LOW_WORD(low,x);
 	e0 	= (ix>>20)-1046;	/* e0 = ilogb(z)-23; */
-	INSERT_WORDS(z, ix - ((int32_t)(e0<<20)), low);
+	INSERT_WORDS(z, ix - ((int32_t)((u_int32_t)e0<<20)), low);
 	for(i=0;i<2;i++) {
 		tx[i] = (double)((int32_t)(z));
 		z     = (z-tx[i])*two24;
diff --git a/libm/upstream-freebsd/lib/msun/src/e_rem_pio2f.c b/libm/upstream-freebsd/lib/msun/src/e_rem_pio2f.c
index 597f613..84cd9bf 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_rem_pio2f.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_rem_pio2f.c
@@ -14,9 +14,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* __ieee754_rem_pio2f(x,y)
  *
  * return the remainder of x rem pi/2 in *y
@@ -41,7 +38,7 @@
 pio2_1t =  1.58932547735281966916e-08; /* 0x3E5110b4, 0x611A6263 */
 
 #ifdef INLINE_REM_PIO2F
-static __inline __always_inline
+static __always_inline
 #endif
 int
 __ieee754_rem_pio2f(float x, double *y)
@@ -70,7 +67,7 @@
 	}
     /* set z = scalbn(|x|,ilogb(|x|)-23) */
 	e0 = (ix>>23)-150;		/* e0 = ilogb(|x|)-23; */
-	SET_FLOAT_WORD(z, ix - ((int32_t)(e0<<23)));
+	SET_FLOAT_WORD(z, ix - ((int32_t)((u_int32_t)e0<<23)));
 	tx[0] = z;
 	n  =  __kernel_rem_pio2(tx,ty,e0,1,0);
 	if(hx<0) {*y = -ty[0]; return -n;}
diff --git a/libm/upstream-freebsd/lib/msun/src/e_remainder.c b/libm/upstream-freebsd/lib/msun/src/e_remainder.c
index 13156d8..a5fb714 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_remainder.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_remainder.c
@@ -1,5 +1,4 @@
 
-/* @(#)e_remainder.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -11,9 +10,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* remainder(x,p)
  * Return :                  
  * 	returns  x REM p  =  x - [x/p]*p as if in infinite 
diff --git a/libm/upstream-freebsd/lib/msun/src/e_remainderf.c b/libm/upstream-freebsd/lib/msun/src/e_remainderf.c
index e0dcfd1..4a6ff63 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_remainderf.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_remainderf.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include "math.h"
 #include "math_private.h"
 
diff --git a/libm/upstream-freebsd/lib/msun/src/e_remainderl.c b/libm/upstream-freebsd/lib/msun/src/e_remainderl.c
index 2295673..7a681cd 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_remainderl.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_remainderl.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <math.h>
 
 long double
diff --git a/libm/upstream-freebsd/lib/msun/src/e_scalb.c b/libm/upstream-freebsd/lib/msun/src/e_scalb.c
index 84a6893..28d2ae6 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_scalb.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_scalb.c
@@ -1,5 +1,4 @@
 
-/* @(#)e_scalb.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -11,9 +10,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * scalb(x, fn) is provide for
  * passing various standard test suite. One 
diff --git a/libm/upstream-freebsd/lib/msun/src/e_scalbf.c b/libm/upstream-freebsd/lib/msun/src/e_scalbf.c
index 28483a5..557a5a0 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_scalbf.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_scalbf.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include "math.h"
 #include "math_private.h"
 
diff --git a/libm/upstream-freebsd/lib/msun/src/e_sinh.c b/libm/upstream-freebsd/lib/msun/src/e_sinh.c
index 9fe8999..5eec75e 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_sinh.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_sinh.c
@@ -1,5 +1,4 @@
 
-/* @(#)e_sinh.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -11,9 +10,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* sinh(x)
  * Method : 
  * mathematically sinh(x) if defined to be (exp(x)-exp(-x))/2
diff --git a/libm/upstream-freebsd/lib/msun/src/e_sinhf.c b/libm/upstream-freebsd/lib/msun/src/e_sinhf.c
index 082beb1..e9fe732 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_sinhf.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_sinhf.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include "math.h"
 #include "math_private.h"
 
diff --git a/libm/upstream-freebsd/lib/msun/src/e_sinhl.c b/libm/upstream-freebsd/lib/msun/src/e_sinhl.c
index 38d3df1..cf481b2 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_sinhl.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_sinhl.c
@@ -11,9 +11,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * See e_sinh.c for complete comments.
  *
diff --git a/libm/upstream-freebsd/lib/msun/src/e_sqrtl.c b/libm/upstream-freebsd/lib/msun/src/e_sqrtl.c
index 67c777f..a785536 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_sqrtl.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_sqrtl.c
@@ -26,9 +26,6 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <fenv.h>
 #include <float.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/src/k_cos.c b/libm/upstream-freebsd/lib/msun/src/k_cos.c
index c4702e6..2eb5e04 100644
--- a/libm/upstream-freebsd/lib/msun/src/k_cos.c
+++ b/libm/upstream-freebsd/lib/msun/src/k_cos.c
@@ -1,5 +1,4 @@
 
-/* @(#)k_cos.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -11,9 +10,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * __kernel_cos( x,  y )
  * kernel cos function on [-pi/4, pi/4], pi/4 ~ 0.785398164
diff --git a/libm/upstream-freebsd/lib/msun/src/k_cosf.c b/libm/upstream-freebsd/lib/msun/src/k_cosf.c
index f7a2c0a..934c1c7 100644
--- a/libm/upstream-freebsd/lib/msun/src/k_cosf.c
+++ b/libm/upstream-freebsd/lib/msun/src/k_cosf.c
@@ -14,11 +14,6 @@
  * ====================================================
  */
 
-#ifndef INLINE_KERNEL_COSDF
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-#endif
-
 #include "math.h"
 #include "math_private.h"
 
diff --git a/libm/upstream-freebsd/lib/msun/src/k_exp.c b/libm/upstream-freebsd/lib/msun/src/k_exp.c
index 1b86cd6..383616d 100644
--- a/libm/upstream-freebsd/lib/msun/src/k_exp.c
+++ b/libm/upstream-freebsd/lib/msun/src/k_exp.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 
 #include "math.h"
diff --git a/libm/upstream-freebsd/lib/msun/src/k_expf.c b/libm/upstream-freebsd/lib/msun/src/k_expf.c
index 7071632..2af0c6d 100644
--- a/libm/upstream-freebsd/lib/msun/src/k_expf.c
+++ b/libm/upstream-freebsd/lib/msun/src/k_expf.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 
 #include "math.h"
diff --git a/libm/upstream-freebsd/lib/msun/src/k_log.h b/libm/upstream-freebsd/lib/msun/src/k_log.h
index aaff8bd..da8f008 100644
--- a/libm/upstream-freebsd/lib/msun/src/k_log.h
+++ b/libm/upstream-freebsd/lib/msun/src/k_log.h
@@ -1,5 +1,4 @@
 
-/* @(#)e_log.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -11,9 +10,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * k_log1p(f):
  * Return log(1+f) - f for 1+f in ~[sqrt(2)/2, sqrt(2)].
diff --git a/libm/upstream-freebsd/lib/msun/src/k_logf.h b/libm/upstream-freebsd/lib/msun/src/k_logf.h
index 71c547e..72b6751 100644
--- a/libm/upstream-freebsd/lib/msun/src/k_logf.h
+++ b/libm/upstream-freebsd/lib/msun/src/k_logf.h
@@ -9,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * Float version of k_log.h.  See the latter for most comments.
  */
diff --git a/libm/upstream-freebsd/lib/msun/src/k_rem_pio2.c b/libm/upstream-freebsd/lib/msun/src/k_rem_pio2.c
index 0a717f7..3d49d14 100644
--- a/libm/upstream-freebsd/lib/msun/src/k_rem_pio2.c
+++ b/libm/upstream-freebsd/lib/msun/src/k_rem_pio2.c
@@ -1,5 +1,4 @@
 
-/* @(#)k_rem_pio2.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -11,9 +10,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * __kernel_rem_pio2(x,y,e0,nx,prec)
  * double x[],y[]; int e0,nx,prec;
diff --git a/libm/upstream-freebsd/lib/msun/src/k_sin.c b/libm/upstream-freebsd/lib/msun/src/k_sin.c
index 12ee8c1..5b97d86 100644
--- a/libm/upstream-freebsd/lib/msun/src/k_sin.c
+++ b/libm/upstream-freebsd/lib/msun/src/k_sin.c
@@ -1,5 +1,4 @@
 
-/* @(#)k_sin.c 1.3 95/01/18 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -11,9 +10,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* __kernel_sin( x, y, iy)
  * kernel sin function on ~[-pi/4, pi/4] (except on -0), pi/4 ~ 0.7854
  * Input x is assumed to be bounded by ~pi/4 in magnitude.
diff --git a/libm/upstream-freebsd/lib/msun/src/k_sincos.h b/libm/upstream-freebsd/lib/msun/src/k_sincos.h
index 6f03be2..796e72a 100644
--- a/libm/upstream-freebsd/lib/msun/src/k_sincos.h
+++ b/libm/upstream-freebsd/lib/msun/src/k_sincos.h
@@ -11,9 +11,6 @@
  * k_sin.c and k_cos.c merged by Steven G. Kargl.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 static const double
 S1  = -1.66666666666666324348e-01, /* 0xBFC55555, 0x55555549 */
 S2  =  8.33333333332248946124e-03, /* 0x3F811111, 0x1110F8A6 */
diff --git a/libm/upstream-freebsd/lib/msun/src/k_sincosf.h b/libm/upstream-freebsd/lib/msun/src/k_sincosf.h
index 073986d..f031016 100644
--- a/libm/upstream-freebsd/lib/msun/src/k_sincosf.h
+++ b/libm/upstream-freebsd/lib/msun/src/k_sincosf.h
@@ -11,9 +11,6 @@
  * k_sinf.c and k_cosf.c merged by Steven G. Kargl.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* |sin(x)/x - s(x)| < 2**-37.5 (~[-4.89e-12, 4.824e-12]). */
 static const double
 S1 = -0x15555554cbac77.0p-55,	/* -0.166666666416265235595 */
diff --git a/libm/upstream-freebsd/lib/msun/src/k_sincosl.h b/libm/upstream-freebsd/lib/msun/src/k_sincosl.h
index 6425f14..cf8536c 100644
--- a/libm/upstream-freebsd/lib/msun/src/k_sincosl.h
+++ b/libm/upstream-freebsd/lib/msun/src/k_sincosl.h
@@ -12,9 +12,6 @@
  * k_sinl.c and k_cosl.c merged by Steven G. Kargl
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #if LDBL_MANT_DIG == 64		/* ld80 version of k_sincosl.c. */
 
 #if defined(__amd64__) || defined(__i386__)
diff --git a/libm/upstream-freebsd/lib/msun/src/k_sinf.c b/libm/upstream-freebsd/lib/msun/src/k_sinf.c
index 0841759..ebebd96 100644
--- a/libm/upstream-freebsd/lib/msun/src/k_sinf.c
+++ b/libm/upstream-freebsd/lib/msun/src/k_sinf.c
@@ -14,11 +14,6 @@
  * ====================================================
  */
 
-#ifndef INLINE_KERNEL_SINDF
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-#endif
-
 #include "math.h"
 #include "math_private.h"
 
diff --git a/libm/upstream-freebsd/lib/msun/src/k_tan.c b/libm/upstream-freebsd/lib/msun/src/k_tan.c
index 2e86c3b..92f30a6 100644
--- a/libm/upstream-freebsd/lib/msun/src/k_tan.c
+++ b/libm/upstream-freebsd/lib/msun/src/k_tan.c
@@ -1,5 +1,3 @@
-/* @(#)k_tan.c 1.5 04/04/22 SMI */
-
 /*
  * ====================================================
  * Copyright 2004 Sun Microsystems, Inc.  All Rights Reserved.
@@ -10,10 +8,6 @@
  * ====================================================
  */
 
-/* INDENT OFF */
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* __kernel_tan( x, y, k )
  * kernel tan function on ~[-pi/4, pi/4] (except on -0), pi/4 ~ 0.7854
  * Input x is assumed to be bounded by ~pi/4 in magnitude.
diff --git a/libm/upstream-freebsd/lib/msun/src/k_tanf.c b/libm/upstream-freebsd/lib/msun/src/k_tanf.c
index 5be1445..83bfad9 100644
--- a/libm/upstream-freebsd/lib/msun/src/k_tanf.c
+++ b/libm/upstream-freebsd/lib/msun/src/k_tanf.c
@@ -13,11 +13,6 @@
  * ====================================================
  */
 
-#ifndef INLINE_KERNEL_TANDF
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-#endif
-
 #include "math.h"
 #include "math_private.h"
 
diff --git a/libm/upstream-freebsd/lib/msun/src/math_private.h b/libm/upstream-freebsd/lib/msun/src/math_private.h
index a55d97a..f3f7985 100644
--- a/libm/upstream-freebsd/lib/msun/src/math_private.h
+++ b/libm/upstream-freebsd/lib/msun/src/math_private.h
@@ -10,8 +10,6 @@
  */
 
 /*
- * from: @(#)fdlibm.h 5.1 93/09/24
- * $FreeBSD$
  */
 
 #ifndef _MATH_PRIVATE_H_
diff --git a/libm/upstream-freebsd/lib/msun/src/s_asinh.c b/libm/upstream-freebsd/lib/msun/src/s_asinh.c
index a1b9169..daebf21 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_asinh.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_asinh.c
@@ -1,4 +1,3 @@
-/* @(#)s_asinh.c 5.1 93/09/24 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* asinh(x)
  * Method :
  *	Based on
diff --git a/libm/upstream-freebsd/lib/msun/src/s_asinhf.c b/libm/upstream-freebsd/lib/msun/src/s_asinhf.c
index 72bcefe..4e622d5 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_asinhf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_asinhf.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include "math.h"
 #include "math_private.h"
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_asinhl.c b/libm/upstream-freebsd/lib/msun/src/s_asinhl.c
index ba28f59..b939fae 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_asinhl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_asinhl.c
@@ -1,6 +1,5 @@
 /* from: FreeBSD: head/lib/msun/src/e_acosh.c 176451 2008-02-22 02:30:36Z das */
 
-/* @(#)s_asinh.c 5.1 93/09/24 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -12,9 +11,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * See s_asinh.c for complete comments.
  *
diff --git a/libm/upstream-freebsd/lib/msun/src/s_atan.c b/libm/upstream-freebsd/lib/msun/src/s_atan.c
index 566f5dc..bff8b5c 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_atan.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_atan.c
@@ -1,4 +1,3 @@
-/* @(#)s_atan.c 5.1 93/09/24 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* atan(x)
  * Method
  *   1. Reduce x to positive by atan(x) = -atan(-x).
diff --git a/libm/upstream-freebsd/lib/msun/src/s_atanf.c b/libm/upstream-freebsd/lib/msun/src/s_atanf.c
index b3a371f..2c38014 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_atanf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_atanf.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include "math.h"
 #include "math_private.h"
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_atanl.c b/libm/upstream-freebsd/lib/msun/src/s_atanl.c
index ff29c3c..d9e6174 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_atanl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_atanl.c
@@ -1,4 +1,3 @@
-/* @(#)s_atan.c 5.1 93/09/24 */
 /* FreeBSD: head/lib/msun/src/s_atan.c 176451 2008-02-22 02:30:36Z das */
 /*
  * ====================================================
@@ -11,9 +10,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * See comments in s_atan.c.
  * Converted to long double by David Schultz <das@FreeBSD.ORG>.
diff --git a/libm/upstream-freebsd/lib/msun/src/s_carg.c b/libm/upstream-freebsd/lib/msun/src/s_carg.c
index f203198..ea7edfd 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_carg.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_carg.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 #include <math.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_cargf.c b/libm/upstream-freebsd/lib/msun/src/s_cargf.c
index 6ea487c..25ab65e 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_cargf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_cargf.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 #include <math.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_cargl.c b/libm/upstream-freebsd/lib/msun/src/s_cargl.c
index ba39438..8a1a108 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_cargl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_cargl.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 #include <math.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_cbrt.c b/libm/upstream-freebsd/lib/msun/src/s_cbrt.c
index 4353d34..6bf8424 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_cbrt.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_cbrt.c
@@ -1,4 +1,3 @@
-/* @(#)s_cbrt.c 5.1 93/09/24 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -12,9 +11,6 @@
  * Optimized by Bruce D. Evans.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <float.h>
 #include "math.h"
 #include "math_private.h"
diff --git a/libm/upstream-freebsd/lib/msun/src/s_cbrtf.c b/libm/upstream-freebsd/lib/msun/src/s_cbrtf.c
index 454f974..a225d3e 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_cbrtf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_cbrtf.c
@@ -14,9 +14,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include "math.h"
 #include "math_private.h"
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_cbrtl.c b/libm/upstream-freebsd/lib/msun/src/s_cbrtl.c
index b15c96e..f1950e2 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_cbrtl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_cbrtl.c
@@ -14,9 +14,6 @@
  * and David A. Schultz.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <float.h>
 #ifdef __i386__
 #include <ieeefp.h>
diff --git a/libm/upstream-freebsd/lib/msun/src/s_ccosh.c b/libm/upstream-freebsd/lib/msun/src/s_ccosh.c
index 0fd9206..3d46c99 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_ccosh.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_ccosh.c
@@ -38,9 +38,6 @@
  * must satisfy both cosh(conj(z)) == conj(cosh(z)) and cosh(-z) == cosh(z).
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 #include <math.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_ccoshf.c b/libm/upstream-freebsd/lib/msun/src/s_ccoshf.c
index 2db8403..aeb2dec 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_ccoshf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_ccoshf.c
@@ -30,9 +30,6 @@
  * Float version of ccosh().  See s_ccosh.c for details.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 #include <math.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_ceil.c b/libm/upstream-freebsd/lib/msun/src/s_ceil.c
index 929f813..e6699bc 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_ceil.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_ceil.c
@@ -1,4 +1,3 @@
-/* @(#)s_ceil.c 5.1 93/09/24 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * ceil(x)
  * Return x rounded toward -inf to integral value
diff --git a/libm/upstream-freebsd/lib/msun/src/s_ceilf.c b/libm/upstream-freebsd/lib/msun/src/s_ceilf.c
index 23bfe04..cc19afa 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_ceilf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_ceilf.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include "math.h"
 #include "math_private.h"
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_ceill.c b/libm/upstream-freebsd/lib/msun/src/s_ceill.c
index 2d1045f..ded36c1 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_ceill.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_ceill.c
@@ -7,13 +7,8 @@
  * software is freely granted, provided that this notice
  * is preserved.
  * ====================================================
- *
- * From: @(#)s_ceil.c 5.1 93/09/24
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * ceill(x)
  * Return x rounded toward -inf to integral value
diff --git a/libm/upstream-freebsd/lib/msun/src/s_cexp.c b/libm/upstream-freebsd/lib/msun/src/s_cexp.c
index 8db763d..0151768 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_cexp.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_cexp.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 #include <float.h>
 #include <math.h>
diff --git a/libm/upstream-freebsd/lib/msun/src/s_cexpf.c b/libm/upstream-freebsd/lib/msun/src/s_cexpf.c
index 7247301..a6c0c99 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_cexpf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_cexpf.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 #include <math.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_cimag.c b/libm/upstream-freebsd/lib/msun/src/s_cimag.c
index 0b14fd7..5779b2a 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_cimag.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_cimag.c
@@ -24,8 +24,6 @@
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
- *
- * $FreeBSD$
  */
 
 #include <complex.h>
diff --git a/libm/upstream-freebsd/lib/msun/src/s_cimagf.c b/libm/upstream-freebsd/lib/msun/src/s_cimagf.c
index 42a1efd..ca2bdf2 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_cimagf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_cimagf.c
@@ -24,8 +24,6 @@
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
- *
- * $FreeBSD$
  */
 
 #include <complex.h>
diff --git a/libm/upstream-freebsd/lib/msun/src/s_cimagl.c b/libm/upstream-freebsd/lib/msun/src/s_cimagl.c
index 9707bc3..3986430 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_cimagl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_cimagl.c
@@ -24,8 +24,6 @@
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
- *
- * $FreeBSD$
  */
 
 #include <complex.h>
diff --git a/libm/upstream-freebsd/lib/msun/src/s_clog.c b/libm/upstream-freebsd/lib/msun/src/s_clog.c
index 8150fa7..2129890 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_clog.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_clog.c
@@ -24,9 +24,6 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 #include <float.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_clogf.c b/libm/upstream-freebsd/lib/msun/src/s_clogf.c
index 19a9445..2204e1e 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_clogf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_clogf.c
@@ -24,9 +24,6 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 #include <float.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_clogl.c b/libm/upstream-freebsd/lib/msun/src/s_clogl.c
index e59a137..075bdb4 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_clogl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_clogl.c
@@ -24,9 +24,6 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 #include <float.h>
 #ifdef __i386__
diff --git a/libm/upstream-freebsd/lib/msun/src/s_conj.c b/libm/upstream-freebsd/lib/msun/src/s_conj.c
index a83abd8..1203ba6 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_conj.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_conj.c
@@ -24,8 +24,6 @@
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
- *
- * $FreeBSD$
  */
 
 #include <complex.h>
diff --git a/libm/upstream-freebsd/lib/msun/src/s_conjf.c b/libm/upstream-freebsd/lib/msun/src/s_conjf.c
index f9eb146..9720998 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_conjf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_conjf.c
@@ -24,8 +24,6 @@
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
- *
- * $FreeBSD$
  */
 
 #include <complex.h>
diff --git a/libm/upstream-freebsd/lib/msun/src/s_conjl.c b/libm/upstream-freebsd/lib/msun/src/s_conjl.c
index 4b86f2e..ef084f4 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_conjl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_conjl.c
@@ -24,8 +24,6 @@
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
- *
- * $FreeBSD$
  */
 
 #include <complex.h>
diff --git a/libm/upstream-freebsd/lib/msun/src/s_copysign.c b/libm/upstream-freebsd/lib/msun/src/s_copysign.c
deleted file mode 100644
index a5f3870..0000000
--- a/libm/upstream-freebsd/lib/msun/src/s_copysign.c
+++ /dev/null
@@ -1,33 +0,0 @@
-/* @(#)s_copysign.c 5.1 93/09/24 */
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunPro, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice
- * is preserved.
- * ====================================================
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-/*
- * copysign(double x, double y)
- * copysign(x,y) returns a value with the magnitude of x and
- * with the sign bit of y.
- */
-
-#include "math.h"
-#include "math_private.h"
-
-double
-copysign(double x, double y)
-{
-	u_int32_t hx,hy;
-	GET_HIGH_WORD(hx,x);
-	GET_HIGH_WORD(hy,y);
-	SET_HIGH_WORD(x,(hx&0x7fffffff)|(hy&0x80000000));
-        return x;
-}
diff --git a/libm/upstream-freebsd/lib/msun/src/s_copysignf.c b/libm/upstream-freebsd/lib/msun/src/s_copysignf.c
deleted file mode 100644
index 05ca1e3..0000000
--- a/libm/upstream-freebsd/lib/msun/src/s_copysignf.c
+++ /dev/null
@@ -1,36 +0,0 @@
-/* s_copysignf.c -- float version of s_copysign.c.
- * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
- */
-
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunPro, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice
- * is preserved.
- * ====================================================
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-/*
- * copysignf(float x, float y)
- * copysignf(x,y) returns a value with the magnitude of x and
- * with the sign bit of y.
- */
-
-#include "math.h"
-#include "math_private.h"
-
-float
-copysignf(float x, float y)
-{
-	u_int32_t ix,iy;
-	GET_FLOAT_WORD(ix,x);
-	GET_FLOAT_WORD(iy,y);
-	SET_FLOAT_WORD(x,(ix&0x7fffffff)|(iy&0x80000000));
-        return x;
-}
diff --git a/libm/upstream-freebsd/lib/msun/src/s_copysignl.c b/libm/upstream-freebsd/lib/msun/src/s_copysignl.c
deleted file mode 100644
index 666a2ba..0000000
--- a/libm/upstream-freebsd/lib/msun/src/s_copysignl.c
+++ /dev/null
@@ -1,44 +0,0 @@
-/*-
- * SPDX-License-Identifier: BSD-2-Clause
- *
- * Copyright (c) 2004 Stefan Farfeleder
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * $FreeBSD$
- */
-
-#include <math.h>
-
-#include "fpmath.h"
-
-long double
-copysignl(long double x, long double y)
-{
-	union IEEEl2bits ux, uy;
-
-	ux.e = x;
-	uy.e = y;
-	ux.bits.sign = uy.bits.sign;
-	return (ux.e);
-}
diff --git a/libm/upstream-freebsd/lib/msun/src/s_cos.c b/libm/upstream-freebsd/lib/msun/src/s_cos.c
index 29804f4..44ecad9 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_cos.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_cos.c
@@ -1,4 +1,3 @@
-/* @(#)s_cos.c 5.1 93/09/24 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* cos(x)
  * Return cosine function of x.
  *
diff --git a/libm/upstream-freebsd/lib/msun/src/s_cosf.c b/libm/upstream-freebsd/lib/msun/src/s_cosf.c
deleted file mode 100644
index b701fd2..0000000
--- a/libm/upstream-freebsd/lib/msun/src/s_cosf.c
+++ /dev/null
@@ -1,87 +0,0 @@
-/* s_cosf.c -- float version of s_cos.c.
- * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
- * Optimized by Bruce D. Evans.
- */
-
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunPro, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice
- * is preserved.
- * ====================================================
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <float.h>
-
-#include "math.h"
-#define	INLINE_KERNEL_COSDF
-#define	INLINE_KERNEL_SINDF
-#define INLINE_REM_PIO2F
-#include "math_private.h"
-#include "e_rem_pio2f.c"
-#include "k_cosf.c"
-#include "k_sinf.c"
-
-/* Small multiples of pi/2 rounded to double precision. */
-static const double
-c1pio2 = 1*M_PI_2,			/* 0x3FF921FB, 0x54442D18 */
-c2pio2 = 2*M_PI_2,			/* 0x400921FB, 0x54442D18 */
-c3pio2 = 3*M_PI_2,			/* 0x4012D97C, 0x7F3321D2 */
-c4pio2 = 4*M_PI_2;			/* 0x401921FB, 0x54442D18 */
-
-float
-cosf(float x)
-{
-	double y;
-	int32_t n, hx, ix;
-
-	GET_FLOAT_WORD(hx,x);
-	ix = hx & 0x7fffffff;
-
-	if(ix <= 0x3f490fda) {		/* |x| ~<= pi/4 */
-	    if(ix<0x39800000)		/* |x| < 2**-12 */
-		if(((int)x)==0) return 1.0;	/* 1 with inexact if x != 0 */
-	    return __kernel_cosdf(x);
-	}
-	if(ix<=0x407b53d1) {		/* |x| ~<= 5*pi/4 */
-	    if(ix>0x4016cbe3)		/* |x|  ~> 3*pi/4 */
-		return -__kernel_cosdf(x + (hx > 0 ? -c2pio2 : c2pio2));
-	    else {
-		if(hx>0)
-		    return __kernel_sindf(c1pio2 - x);
-		else
-		    return __kernel_sindf(x + c1pio2);
-	    }
-	}
-	if(ix<=0x40e231d5) {		/* |x| ~<= 9*pi/4 */
-	    if(ix>0x40afeddf)		/* |x|  ~> 7*pi/4 */
-		return __kernel_cosdf(x + (hx > 0 ? -c4pio2 : c4pio2));
-	    else {
-		if(hx>0)
-		    return __kernel_sindf(x - c3pio2);
-		else
-		    return __kernel_sindf(-c3pio2 - x);
-	    }
-	}
-
-    /* cos(Inf or NaN) is NaN */
-	else if (ix>=0x7f800000) return x-x;
-
-    /* general argument reduction needed */
-	else {
-	    n = __ieee754_rem_pio2f(x,&y);
-	    switch(n&3) {
-		case 0: return  __kernel_cosdf(y);
-		case 1: return  __kernel_sindf(-y);
-		case 2: return -__kernel_cosdf(y);
-		default:
-		        return  __kernel_sindf(y);
-	    }
-	}
-}
diff --git a/libm/upstream-freebsd/lib/msun/src/s_cosl.c b/libm/upstream-freebsd/lib/msun/src/s_cosl.c
index 6f0b36f..32fc8b2 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_cosl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_cosl.c
@@ -26,9 +26,6 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * Limited testing on pseudorandom numbers drawn within [-2e8:4e8] shows
  * an accuracy of <= 0.7412 ULP.
diff --git a/libm/upstream-freebsd/lib/msun/src/s_cpow.c b/libm/upstream-freebsd/lib/msun/src/s_cpow.c
index cdc57bd..b887db5 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_cpow.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_cpow.c
@@ -43,9 +43,6 @@
  *
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 #include <float.h>
 #include <math.h>
diff --git a/libm/upstream-freebsd/lib/msun/src/s_cpowf.c b/libm/upstream-freebsd/lib/msun/src/s_cpowf.c
index aeb773b..1442910 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_cpowf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_cpowf.c
@@ -43,9 +43,6 @@
  *
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 #include <math.h>
 #include "math_private.h"
diff --git a/libm/upstream-freebsd/lib/msun/src/s_cpowl.c b/libm/upstream-freebsd/lib/msun/src/s_cpowl.c
index 5d43b55..39797ca 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_cpowl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_cpowl.c
@@ -43,9 +43,6 @@
  *
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 #include <math.h>
 #include "math_private.h"
diff --git a/libm/upstream-freebsd/lib/msun/src/s_cproj.c b/libm/upstream-freebsd/lib/msun/src/s_cproj.c
index 5b0d4ed..9eebb45 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_cproj.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_cproj.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 #include <float.h>
 #include <math.h>
diff --git a/libm/upstream-freebsd/lib/msun/src/s_cprojf.c b/libm/upstream-freebsd/lib/msun/src/s_cprojf.c
index 0d76e75..13d90ba 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_cprojf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_cprojf.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 #include <math.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_cprojl.c b/libm/upstream-freebsd/lib/msun/src/s_cprojl.c
index 7fc35d2..083b5fa 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_cprojl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_cprojl.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 #include <math.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_creal.c b/libm/upstream-freebsd/lib/msun/src/s_creal.c
index 5c8734e..b3a82f0 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_creal.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_creal.c
@@ -24,8 +24,6 @@
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
- *
- * $FreeBSD$
  */
 
 #include <complex.h>
diff --git a/libm/upstream-freebsd/lib/msun/src/s_crealf.c b/libm/upstream-freebsd/lib/msun/src/s_crealf.c
index a93421f..36fc115 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_crealf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_crealf.c
@@ -24,8 +24,6 @@
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
- *
- * $FreeBSD$
  */
 
 #include <complex.h>
diff --git a/libm/upstream-freebsd/lib/msun/src/s_creall.c b/libm/upstream-freebsd/lib/msun/src/s_creall.c
index b4eb9ef..b56143a 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_creall.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_creall.c
@@ -24,8 +24,6 @@
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
- *
- * $FreeBSD$
  */
 
 #include <complex.h>
diff --git a/libm/upstream-freebsd/lib/msun/src/s_csinh.c b/libm/upstream-freebsd/lib/msun/src/s_csinh.c
index b3928ce..e7ed10e 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_csinh.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_csinh.c
@@ -38,9 +38,6 @@
  * must satisfy both sinh(conj(z)) == conj(sinh(z)) and sinh(-z) == -sinh(z).
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 #include <math.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_csinhf.c b/libm/upstream-freebsd/lib/msun/src/s_csinhf.c
index a8d6f2d..c439275 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_csinhf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_csinhf.c
@@ -30,9 +30,6 @@
  * Float version of csinh().  See s_csinh.c for details.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 #include <math.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_csqrt.c b/libm/upstream-freebsd/lib/msun/src/s_csqrt.c
index d96c344..c40b5a6 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_csqrt.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_csqrt.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 #include <float.h>
 #include <math.h>
diff --git a/libm/upstream-freebsd/lib/msun/src/s_csqrtf.c b/libm/upstream-freebsd/lib/msun/src/s_csqrtf.c
index e3ef4d0..b572451 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_csqrtf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_csqrtf.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 #include <math.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_csqrtl.c b/libm/upstream-freebsd/lib/msun/src/s_csqrtl.c
index d564133..0f375f3 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_csqrtl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_csqrtl.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 #include <float.h>
 #include <math.h>
diff --git a/libm/upstream-freebsd/lib/msun/src/s_ctanh.c b/libm/upstream-freebsd/lib/msun/src/s_ctanh.c
index aa4e10c..6904363 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_ctanh.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_ctanh.c
@@ -65,9 +65,6 @@
  *   precision.  I also handle large x differently.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 #include <math.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_ctanhf.c b/libm/upstream-freebsd/lib/msun/src/s_ctanhf.c
index e9ebe4f..551e143 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_ctanhf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_ctanhf.c
@@ -30,9 +30,6 @@
  * Hyperbolic tangent of a complex argument z.  See s_ctanh.c for details.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 #include <math.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_erf.c b/libm/upstream-freebsd/lib/msun/src/s_erf.c
index ab2dc19..a9de122 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_erf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_erf.c
@@ -1,4 +1,3 @@
-/* @(#)s_erf.c 5.1 93/09/24 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* double erf(double x)
  * double erfc(double x)
  *			     x
diff --git a/libm/upstream-freebsd/lib/msun/src/s_erff.c b/libm/upstream-freebsd/lib/msun/src/s_erff.c
index d6cfbd2..6c8f406 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_erff.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_erff.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include "math.h"
 #include "math_private.h"
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_exp2.c b/libm/upstream-freebsd/lib/msun/src/s_exp2.c
deleted file mode 100644
index 1dd9673..0000000
--- a/libm/upstream-freebsd/lib/msun/src/s_exp2.c
+++ /dev/null
@@ -1,399 +0,0 @@
-/*-
- * SPDX-License-Identifier: BSD-2-Clause
- *
- * Copyright (c) 2005 David Schultz <das@FreeBSD.ORG>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <float.h>
-
-#include "math.h"
-#include "math_private.h"
-
-#define	TBLBITS	8
-#define	TBLSIZE	(1 << TBLBITS)
-
-static const double
-    redux    = 0x1.8p52 / TBLSIZE,
-    P1	     = 0x1.62e42fefa39efp-1,
-    P2	     = 0x1.ebfbdff82c575p-3,
-    P3	     = 0x1.c6b08d704a0a6p-5,
-    P4	     = 0x1.3b2ab88f70400p-7,
-    P5	     = 0x1.5d88003875c74p-10;
-
-static volatile double
-    huge     = 0x1p1000,
-    twom1000 = 0x1p-1000;
-
-static const double tbl[TBLSIZE * 2] = {
-/*	exp2(z + eps)		eps	*/
-	0x1.6a09e667f3d5dp-1,	 0x1.9880p-44,
-	0x1.6b052fa751744p-1,	 0x1.8000p-50,
-	0x1.6c012750bd9fep-1,	-0x1.8780p-45,
-	0x1.6cfdcddd476bfp-1,	 0x1.ec00p-46,
-	0x1.6dfb23c651a29p-1,	-0x1.8000p-50,
-	0x1.6ef9298593ae3p-1,	-0x1.c000p-52,
-	0x1.6ff7df9519386p-1,	-0x1.fd80p-45,
-	0x1.70f7466f42da3p-1,	-0x1.c880p-45,
-	0x1.71f75e8ec5fc3p-1,	 0x1.3c00p-46,
-	0x1.72f8286eacf05p-1,	-0x1.8300p-44,
-	0x1.73f9a48a58152p-1,	-0x1.0c00p-47,
-	0x1.74fbd35d7ccfcp-1,	 0x1.f880p-45,
-	0x1.75feb564267f1p-1,	 0x1.3e00p-47,
-	0x1.77024b1ab6d48p-1,	-0x1.7d00p-45,
-	0x1.780694fde5d38p-1,	-0x1.d000p-50,
-	0x1.790b938ac1d00p-1,	 0x1.3000p-49,
-	0x1.7a11473eb0178p-1,	-0x1.d000p-49,
-	0x1.7b17b0976d060p-1,	 0x1.0400p-45,
-	0x1.7c1ed0130c133p-1,	 0x1.0000p-53,
-	0x1.7d26a62ff8636p-1,	-0x1.6900p-45,
-	0x1.7e2f336cf4e3bp-1,	-0x1.2e00p-47,
-	0x1.7f3878491c3e8p-1,	-0x1.4580p-45,
-	0x1.80427543e1b4ep-1,	 0x1.3000p-44,
-	0x1.814d2add1071ap-1,	 0x1.f000p-47,
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-	0x1.ae89f995ad2a3p-1,	-0x1.c900p-45,
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-	0x1.bf2c25bd71db8p-1,	-0x1.0a00p-46,
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-	0x1.c67f12e57d0cbp-1,	-0x1.a100p-46,
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-	0x1.423fb27094646p+0,	-0x1.3600p-46,
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-	0x1.43ffa3f84b9ebp+0,	 0x1.a000p-48,
-	0x1.44e0860618919p+0,	-0x1.6c00p-48,
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-	0x1.486a2b5c13c00p+0,	-0x1.d400p-45,
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-	0x1.4a32af0d7d372p+0,	-0x1.e500p-46,
-	0x1.4b17dea6db801p+0,	 0x1.7800p-47,
-	0x1.4bfdad53629e1p+0,	-0x1.3800p-46,
-	0x1.4ce41b817c132p+0,	 0x1.0800p-47,
-	0x1.4dcb299fddddbp+0,	 0x1.c700p-45,
-	0x1.4eb2d81d8ab96p+0,	-0x1.ce00p-46,
-	0x1.4f9b2769d2d02p+0,	 0x1.9200p-46,
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-	0x1.516daa2cf662ap+0,	-0x1.a000p-48,
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-	0x1.5342b569d4edap+0,	-0x1.6d80p-45,
-	0x1.542e2f4f6ac1ap+0,	-0x1.2440p-44,
-	0x1.551a4ca5d94dbp+0,	 0x1.83c0p-43,
-	0x1.56070dde9116bp+0,	 0x1.4b00p-45,
-	0x1.56f4736b529dep+0,	 0x1.15a0p-43,
-	0x1.57e27dbe2c40ep+0,	-0x1.9e00p-45,
-	0x1.58d12d497c76fp+0,	-0x1.3080p-45,
-	0x1.59c0827ff0b4cp+0,	 0x1.dec0p-43,
-	0x1.5ab07dd485427p+0,	-0x1.4000p-51,
-	0x1.5ba11fba87af4p+0,	 0x1.0080p-44,
-	0x1.5c9268a59460bp+0,	-0x1.6c80p-45,
-	0x1.5d84590998e3fp+0,	 0x1.69a0p-43,
-	0x1.5e76f15ad20e1p+0,	-0x1.b400p-46,
-	0x1.5f6a320dcebcap+0,	 0x1.7700p-46,
-	0x1.605e1b976dcb8p+0,	 0x1.6f80p-45,
-	0x1.6152ae6cdf715p+0,	 0x1.1000p-47,
-	0x1.6247eb03a5531p+0,	-0x1.5d00p-46,
-	0x1.633dd1d1929b5p+0,	-0x1.2d00p-46,
-	0x1.6434634ccc313p+0,	-0x1.a800p-49,
-	0x1.652b9febc8efap+0,	-0x1.8600p-45,
-	0x1.6623882553397p+0,	 0x1.1fe0p-40,
-	0x1.671c1c708328ep+0,	-0x1.7200p-44,
-	0x1.68155d44ca97ep+0,	 0x1.6800p-49,
-	0x1.690f4b19e9471p+0,	-0x1.9780p-45,
-};
-
-/*
- * exp2(x): compute the base 2 exponential of x
- *
- * Accuracy: Peak error < 0.503 ulp for normalized results.
- *
- * Method: (accurate tables)
- *
- *   Reduce x:
- *     x = 2**k + y, for integer k and |y| <= 1/2.
- *     Thus we have exp2(x) = 2**k * exp2(y).
- *
- *   Reduce y:
- *     y = i/TBLSIZE + z - eps[i] for integer i near y * TBLSIZE.
- *     Thus we have exp2(y) = exp2(i/TBLSIZE) * exp2(z - eps[i]),
- *     with |z - eps[i]| <= 2**-9 + 2**-39 for the table used.
- *
- *   We compute exp2(i/TBLSIZE) via table lookup and exp2(z - eps[i]) via
- *   a degree-5 minimax polynomial with maximum error under 1.3 * 2**-61.
- *   The values in exp2t[] and eps[] are chosen such that
- *   exp2t[i] = exp2(i/TBLSIZE + eps[i]), and eps[i] is a small offset such
- *   that exp2t[i] is accurate to 2**-64.
- *
- *   Note that the range of i is +-TBLSIZE/2, so we actually index the tables
- *   by i0 = i + TBLSIZE/2.  For cache efficiency, exp2t[] and eps[] are
- *   virtual tables, interleaved in the real table tbl[].
- *
- *   This method is due to Gal, with many details due to Gal and Bachelis:
- *
- *	Gal, S. and Bachelis, B.  An Accurate Elementary Mathematical Library
- *	for the IEEE Floating Point Standard.  TOMS 17(1), 26-46 (1991).
- */
-double
-exp2(double x)
-{
-	double r, t, twopk, twopkp1000, z;
-	uint32_t hx, ix, lx, i0;
-	int k;
-
-	/* Filter out exceptional cases. */
-	GET_HIGH_WORD(hx,x);
-	ix = hx & 0x7fffffff;		/* high word of |x| */
-	if(ix >= 0x40900000) {			/* |x| >= 1024 */
-		if(ix >= 0x7ff00000) {
-			GET_LOW_WORD(lx,x);
-			if(((ix & 0xfffff) | lx) != 0 || (hx & 0x80000000) == 0)
-				return (x + x);	/* x is NaN or +Inf */
-			else 
-				return (0.0);	/* x is -Inf */
-		}
-		if(x >= 0x1.0p10)
-			return (huge * huge); /* overflow */
-		if(x <= -0x1.0ccp10)
-			return (twom1000 * twom1000); /* underflow */
-	} else if (ix < 0x3c900000) {		/* |x| < 0x1p-54 */
-		return (1.0 + x);
-	}
-
-	/* Reduce x, computing z, i0, and k. */
-	STRICT_ASSIGN(double, t, x + redux);
-	GET_LOW_WORD(i0, t);
-	i0 += TBLSIZE / 2;
-	k = (i0 >> TBLBITS) << 20;
-	i0 = (i0 & (TBLSIZE - 1)) << 1;
-	t -= redux;
-	z = x - t;
-
-	/* Compute r = exp2(y) = exp2t[i0] * p(z - eps[i]). */
-	t = tbl[i0];		/* exp2t[i0] */
-	z -= tbl[i0 + 1];	/* eps[i0]   */
-	if (k >= -(1021 << 20))
-		INSERT_WORDS(twopk, 0x3ff00000 + k, 0);
-	else
-		INSERT_WORDS(twopkp1000, 0x3ff00000 + k + (1000 << 20), 0);
-	r = t + t * z * (P1 + z * (P2 + z * (P3 + z * (P4 + z * P5))));
-
-	/* Scale by 2**(k>>20). */
-	if(k >= -(1021 << 20)) {
-		if (k == 1024 << 20)
-			return (r * 2.0 * 0x1p1023);
-		return (r * twopk);
-	} else {
-		return (r * twopkp1000 * twom1000);
-	}
-}
-
-#if (LDBL_MANT_DIG == 53)
-__weak_reference(exp2, exp2l);
-#endif
diff --git a/libm/upstream-freebsd/lib/msun/src/s_exp2f.c b/libm/upstream-freebsd/lib/msun/src/s_exp2f.c
deleted file mode 100644
index c5b4c8e..0000000
--- a/libm/upstream-freebsd/lib/msun/src/s_exp2f.c
+++ /dev/null
@@ -1,139 +0,0 @@
-/*-
- * SPDX-License-Identifier: BSD-2-Clause
- *
- * Copyright (c) 2005 David Schultz <das@FreeBSD.ORG>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <float.h>
-
-#include "math.h"
-#include "math_private.h"
-
-#define	TBLBITS	4
-#define	TBLSIZE	(1 << TBLBITS)
-
-static const float
-    redux   = 0x1.8p23f / TBLSIZE,
-    P1	    = 0x1.62e430p-1f,
-    P2	    = 0x1.ebfbe0p-3f,
-    P3	    = 0x1.c6b348p-5f,
-    P4	    = 0x1.3b2c9cp-7f;
-
-static volatile float
-    huge    = 0x1p100f,
-    twom100 = 0x1p-100f;
-
-static const double exp2ft[TBLSIZE] = {
-	0x1.6a09e667f3bcdp-1,
-	0x1.7a11473eb0187p-1,
-	0x1.8ace5422aa0dbp-1,
-	0x1.9c49182a3f090p-1,
-	0x1.ae89f995ad3adp-1,
-	0x1.c199bdd85529cp-1,
-	0x1.d5818dcfba487p-1,
-	0x1.ea4afa2a490dap-1,
-	0x1.0000000000000p+0,
-	0x1.0b5586cf9890fp+0,
-	0x1.172b83c7d517bp+0,
-	0x1.2387a6e756238p+0,
-	0x1.306fe0a31b715p+0,
-	0x1.3dea64c123422p+0,
-	0x1.4bfdad5362a27p+0,
-	0x1.5ab07dd485429p+0,
-};
-	
-/*
- * exp2f(x): compute the base 2 exponential of x
- *
- * Accuracy: Peak error < 0.501 ulp; location of peak: -0.030110927.
- *
- * Method: (equally-spaced tables)
- *
- *   Reduce x:
- *     x = 2**k + y, for integer k and |y| <= 1/2.
- *     Thus we have exp2f(x) = 2**k * exp2(y).
- *
- *   Reduce y:
- *     y = i/TBLSIZE + z for integer i near y * TBLSIZE.
- *     Thus we have exp2(y) = exp2(i/TBLSIZE) * exp2(z),
- *     with |z| <= 2**-(TBLSIZE+1).
- *
- *   We compute exp2(i/TBLSIZE) via table lookup and exp2(z) via a
- *   degree-4 minimax polynomial with maximum error under 1.4 * 2**-33.
- *   Using double precision for everything except the reduction makes
- *   roundoff error insignificant and simplifies the scaling step.
- *
- *   This method is due to Tang, but I do not use his suggested parameters:
- *
- *	Tang, P.  Table-driven Implementation of the Exponential Function
- *	in IEEE Floating-Point Arithmetic.  TOMS 15(2), 144-157 (1989).
- */
-float
-exp2f(float x)
-{
-	double tv, twopk, u, z;
-	float t;
-	uint32_t hx, ix, i0;
-	int32_t k;
-
-	/* Filter out exceptional cases. */
-	GET_FLOAT_WORD(hx, x);
-	ix = hx & 0x7fffffff;		/* high word of |x| */
-	if(ix >= 0x43000000) {			/* |x| >= 128 */
-		if(ix >= 0x7f800000) {
-			if ((ix & 0x7fffff) != 0 || (hx & 0x80000000) == 0)
-				return (x + x);	/* x is NaN or +Inf */
-			else 
-				return (0.0);	/* x is -Inf */
-		}
-		if(x >= 0x1.0p7f)
-			return (huge * huge);	/* overflow */
-		if(x <= -0x1.2cp7f)
-			return (twom100 * twom100); /* underflow */
-	} else if (ix <= 0x33000000) {		/* |x| <= 0x1p-25 */
-		return (1.0f + x);
-	}
-
-	/* Reduce x, computing z, i0, and k. */
-	STRICT_ASSIGN(float, t, x + redux);
-	GET_FLOAT_WORD(i0, t);
-	i0 += TBLSIZE / 2;
-	k = (i0 >> TBLBITS) << 20;
-	i0 &= TBLSIZE - 1;
-	t -= redux;
-	z = x - t;
-	INSERT_WORDS(twopk, 0x3ff00000 + k, 0);
-
-	/* Compute r = exp2(y) = exp2ft[i0] * p(z). */
-	tv = exp2ft[i0];
-	u = tv * z;
-	tv = tv + u * (P1 + z * P2) + u * (z * z) * (P3 + z * P4);
-
-	/* Scale by 2**(k>>20). */
-	return (tv * twopk);
-}
diff --git a/libm/upstream-freebsd/lib/msun/src/s_expm1.c b/libm/upstream-freebsd/lib/msun/src/s_expm1.c
index 844f103..cdc225e 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_expm1.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_expm1.c
@@ -1,4 +1,3 @@
-/* @(#)s_expm1.c 5.1 93/09/24 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* expm1(x)
  * Returns exp(x)-1, the exponential of x minus 1.
  *
diff --git a/libm/upstream-freebsd/lib/msun/src/s_expm1f.c b/libm/upstream-freebsd/lib/msun/src/s_expm1f.c
index b47daac..6887bf2 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_expm1f.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_expm1f.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <float.h>
 
 #include "math.h"
diff --git a/libm/upstream-freebsd/lib/msun/src/s_fabsl.c b/libm/upstream-freebsd/lib/msun/src/s_fabsl.c
deleted file mode 100644
index 5076d8a..0000000
--- a/libm/upstream-freebsd/lib/msun/src/s_fabsl.c
+++ /dev/null
@@ -1,45 +0,0 @@
-/*-
- * SPDX-License-Identifier: BSD-3-Clause
- *
- * Copyright (c) 2003 Dag-Erling Smørgrav
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer
- *    in this position and unchanged.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * $FreeBSD$
- */
-
-#include <math.h>
-
-#include "fpmath.h"
-
-long double
-fabsl(long double x)
-{
-	union IEEEl2bits u;
-
-	u.e = x;
-	u.bits.sign = 0;
-	return (u.e);
-}
diff --git a/libm/upstream-freebsd/lib/msun/src/s_fdim.c b/libm/upstream-freebsd/lib/msun/src/s_fdim.c
index b81dbac..4f56ee4 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_fdim.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_fdim.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <math.h>
 
 #define	DECL(type, fn)			\
diff --git a/libm/upstream-freebsd/lib/msun/src/s_finite.c b/libm/upstream-freebsd/lib/msun/src/s_finite.c
index 4c51352..a3fd599 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_finite.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_finite.c
@@ -1,4 +1,3 @@
-/* @(#)s_finite.c 5.1 93/09/24 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * finite(x) returns 1 is x is finite, else 0;
  * no branching!
diff --git a/libm/upstream-freebsd/lib/msun/src/s_finitef.c b/libm/upstream-freebsd/lib/msun/src/s_finitef.c
index c62239e..9a4a876 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_finitef.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_finitef.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * finitef(x) returns 1 is x is finite, else 0;
  * no branching!
diff --git a/libm/upstream-freebsd/lib/msun/src/s_floor.c b/libm/upstream-freebsd/lib/msun/src/s_floor.c
index 65f696a..7ca65b1 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_floor.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_floor.c
@@ -1,4 +1,3 @@
-/* @(#)s_floor.c 5.1 93/09/24 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * floor(x)
  * Return x rounded toward -inf to integral value
diff --git a/libm/upstream-freebsd/lib/msun/src/s_floorf.c b/libm/upstream-freebsd/lib/msun/src/s_floorf.c
index 6b510de..d497157 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_floorf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_floorf.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * floorf(x)
  * Return x rounded toward -inf to integral value
diff --git a/libm/upstream-freebsd/lib/msun/src/s_floorl.c b/libm/upstream-freebsd/lib/msun/src/s_floorl.c
index 6cec3e7..3b54cab 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_floorl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_floorl.c
@@ -7,13 +7,8 @@
  * software is freely granted, provided that this notice
  * is preserved.
  * ====================================================
- *
- * From: @(#)s_floor.c 5.1 93/09/24
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * floorl(x)
  * Return x rounded toward -inf to integral value
diff --git a/libm/upstream-freebsd/lib/msun/src/s_fma.c b/libm/upstream-freebsd/lib/msun/src/s_fma.c
index 2fd7075..6c889a6 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_fma.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_fma.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <fenv.h>
 #include <float.h>
 #include <math.h>
@@ -225,17 +222,17 @@
 		case FE_TONEAREST:
 			return (z);
 		case FE_TOWARDZERO:
-			if (x > 0.0 ^ y < 0.0 ^ z < 0.0)
+			if ((x > 0.0) ^ (y < 0.0) ^ (z < 0.0))
 				return (z);
 			else
 				return (nextafter(z, 0));
 		case FE_DOWNWARD:
-			if (x > 0.0 ^ y < 0.0)
+			if ((x > 0.0) ^ (y < 0.0))
 				return (z);
 			else
 				return (nextafter(z, -INFINITY));
 		default:	/* FE_UPWARD */
-			if (x > 0.0 ^ y < 0.0)
+			if ((x > 0.0) ^ (y < 0.0))
 				return (nextafter(z, INFINITY));
 			else
 				return (z);
@@ -247,7 +244,7 @@
 		zs = copysign(DBL_MIN, zs);
 
 	fesetround(FE_TONEAREST);
-	/* work around clang bug 8100 */
+	/* work around clang issue #8472 */
 	volatile double vxs = xs;
 
 	/*
@@ -279,7 +276,7 @@
 		 * rounding modes.
 		 */
 		fesetround(oround);
-		/* work around clang bug 8100 */
+		/* work around clang issue #8472 */
 		volatile double vrlo = r.lo;
 		adj = vrlo + xy.lo;
 		return (ldexp(r.hi + adj, spread));
diff --git a/libm/upstream-freebsd/lib/msun/src/s_fmaf.c b/libm/upstream-freebsd/lib/msun/src/s_fmaf.c
index ae979cb..5f3d5d1 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_fmaf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_fmaf.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <fenv.h>
 
 #include "math.h"
diff --git a/libm/upstream-freebsd/lib/msun/src/s_fmal.c b/libm/upstream-freebsd/lib/msun/src/s_fmal.c
index a0622a2..80c835d 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_fmal.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_fmal.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <fenv.h>
 #include <float.h>
 #include <math.h>
@@ -206,17 +203,17 @@
 		case FE_TONEAREST:
 			return (z);
 		case FE_TOWARDZERO:
-			if (x > 0.0 ^ y < 0.0 ^ z < 0.0)
+			if ((x > 0.0) ^ (y < 0.0) ^ (z < 0.0))
 				return (z);
 			else
 				return (nextafterl(z, 0));
 		case FE_DOWNWARD:
-			if (x > 0.0 ^ y < 0.0)
+			if ((x > 0.0) ^ (y < 0.0))
 				return (z);
 			else
 				return (nextafterl(z, -INFINITY));
 		default:	/* FE_UPWARD */
-			if (x > 0.0 ^ y < 0.0)
+			if ((x > 0.0) ^ (y < 0.0))
 				return (nextafterl(z, INFINITY));
 			else
 				return (z);
@@ -228,7 +225,7 @@
 		zs = copysignl(LDBL_MIN, zs);
 
 	fesetround(FE_TONEAREST);
-	/* work around clang bug 8100 */
+	/* work around clang issue #8472 */
 	volatile long double vxs = xs;
 
 	/*
@@ -260,7 +257,7 @@
 		 * rounding modes.
 		 */
 		fesetround(oround);
-		/* work around clang bug 8100 */
+		/* work around clang issue #8472 */
 		volatile long double vrlo = r.lo;
 		adj = vrlo + xy.lo;
 		return (ldexpl(r.hi + adj, spread));
diff --git a/libm/upstream-freebsd/lib/msun/src/s_fmax.c b/libm/upstream-freebsd/lib/msun/src/s_fmax.c
index 42bd11c..5d437fc 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_fmax.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_fmax.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <float.h>
 #include <math.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_fmaxf.c b/libm/upstream-freebsd/lib/msun/src/s_fmaxf.c
index 10667d3..1572572 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_fmaxf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_fmaxf.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <math.h>
 
 #include "fpmath.h"
diff --git a/libm/upstream-freebsd/lib/msun/src/s_fmaxl.c b/libm/upstream-freebsd/lib/msun/src/s_fmaxl.c
index bf42587..73e2a4b 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_fmaxl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_fmaxl.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <math.h>
 
 #include "fpmath.h"
diff --git a/libm/upstream-freebsd/lib/msun/src/s_fmin.c b/libm/upstream-freebsd/lib/msun/src/s_fmin.c
index e79071d..a349e5d 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_fmin.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_fmin.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <float.h>
 #include <math.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_fminf.c b/libm/upstream-freebsd/lib/msun/src/s_fminf.c
index 19ffd42..5c2537e 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_fminf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_fminf.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <math.h>
 
 #include "fpmath.h"
diff --git a/libm/upstream-freebsd/lib/msun/src/s_fminl.c b/libm/upstream-freebsd/lib/msun/src/s_fminl.c
index c906f1d..7ac17e3 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_fminl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_fminl.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <math.h>
 
 #include "fpmath.h"
diff --git a/libm/upstream-freebsd/lib/msun/src/s_frexp.c b/libm/upstream-freebsd/lib/msun/src/s_frexp.c
index 318a991..90aea67 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_frexp.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_frexp.c
@@ -1,4 +1,3 @@
-/* @(#)s_frexp.c 5.1 93/09/24 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * for non-zero x
  *	x = frexp(arg,&exp);
diff --git a/libm/upstream-freebsd/lib/msun/src/s_frexpf.c b/libm/upstream-freebsd/lib/msun/src/s_frexpf.c
index 5a7c486..bca27b5 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_frexpf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_frexpf.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include "math.h"
 #include "math_private.h"
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_frexpl.c b/libm/upstream-freebsd/lib/msun/src/s_frexpl.c
index 7101615..32f1264 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_frexpl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_frexpl.c
@@ -24,8 +24,6 @@
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
- *
- * $FreeBSD$
  */
 
 #include <float.h>
diff --git a/libm/upstream-freebsd/lib/msun/src/s_ilogb.c b/libm/upstream-freebsd/lib/msun/src/s_ilogb.c
index a930bc9..27e0bbb 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_ilogb.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_ilogb.c
@@ -1,4 +1,3 @@
-/* @(#)s_ilogb.c 5.1 93/09/24 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* ilogb(double x)
  * return the binary exponent of non-zero x
  * ilogb(0) = FP_ILOGB0
diff --git a/libm/upstream-freebsd/lib/msun/src/s_ilogbf.c b/libm/upstream-freebsd/lib/msun/src/s_ilogbf.c
index 93fe295..e0f8fee 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_ilogbf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_ilogbf.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <limits.h>
 
 #include "math.h"
diff --git a/libm/upstream-freebsd/lib/msun/src/s_ilogbl.c b/libm/upstream-freebsd/lib/msun/src/s_ilogbl.c
index 3211f44..4d8fb8f 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_ilogbl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_ilogbl.c
@@ -1,5 +1,4 @@
 /*
- * From: @(#)s_ilogb.c 5.1 93/09/24
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
  *
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <float.h>
 #include <limits.h>
 #include <math.h>
diff --git a/libm/upstream-freebsd/lib/msun/src/s_llrint.c b/libm/upstream-freebsd/lib/msun/src/s_llrint.c
index 7c959ec..5e27603 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_llrint.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_llrint.c
@@ -1,6 +1,3 @@
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #define type		double
 #define	roundit		rint
 #define dtype		long long
diff --git a/libm/upstream-freebsd/lib/msun/src/s_llrintf.c b/libm/upstream-freebsd/lib/msun/src/s_llrintf.c
index 7ec6015..b117f7c 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_llrintf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_llrintf.c
@@ -1,6 +1,3 @@
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #define type		float
 #define	roundit		rintf
 #define dtype		long long
diff --git a/libm/upstream-freebsd/lib/msun/src/s_llrintl.c b/libm/upstream-freebsd/lib/msun/src/s_llrintl.c
index 6ef8375..82f4529 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_llrintl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_llrintl.c
@@ -1,6 +1,3 @@
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #define type		long double
 #define	roundit		rintl
 #define dtype		long long
diff --git a/libm/upstream-freebsd/lib/msun/src/s_llround.c b/libm/upstream-freebsd/lib/msun/src/s_llround.c
index 827dfc1..3983ce1 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_llround.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_llround.c
@@ -1,6 +1,3 @@
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #define type		double
 #define	roundit		round
 #define dtype		long long
diff --git a/libm/upstream-freebsd/lib/msun/src/s_llroundf.c b/libm/upstream-freebsd/lib/msun/src/s_llroundf.c
index c037a18..827d915 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_llroundf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_llroundf.c
@@ -1,6 +1,3 @@
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #define type		float
 #define	roundit		roundf
 #define dtype		long long
diff --git a/libm/upstream-freebsd/lib/msun/src/s_llroundl.c b/libm/upstream-freebsd/lib/msun/src/s_llroundl.c
index 02c44eb..40cad84 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_llroundl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_llroundl.c
@@ -1,6 +1,3 @@
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #define type		long double
 #define	roundit		roundl
 #define dtype		long long
diff --git a/libm/upstream-freebsd/lib/msun/src/s_log1p.c b/libm/upstream-freebsd/lib/msun/src/s_log1p.c
index 3cc77bd..7131bea 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_log1p.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_log1p.c
@@ -1,4 +1,3 @@
-/* @(#)s_log1p.c 5.1 93/09/24 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* double log1p(double x)
  *
  * Method :
diff --git a/libm/upstream-freebsd/lib/msun/src/s_log1pf.c b/libm/upstream-freebsd/lib/msun/src/s_log1pf.c
index df04c67..dad567b 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_log1pf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_log1pf.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <float.h>
 
 #include "math.h"
diff --git a/libm/upstream-freebsd/lib/msun/src/s_logb.c b/libm/upstream-freebsd/lib/msun/src/s_logb.c
index a47e354..ec777fd 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_logb.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_logb.c
@@ -1,4 +1,3 @@
-/* @(#)s_logb.c 5.1 93/09/24 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * double logb(x)
  * IEEE 754 logb. Included to pass IEEE test suite. Not recommend.
diff --git a/libm/upstream-freebsd/lib/msun/src/s_logbf.c b/libm/upstream-freebsd/lib/msun/src/s_logbf.c
index 3ab190d..0416a9c 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_logbf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_logbf.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include "math.h"
 #include "math_private.h"
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_logbl.c b/libm/upstream-freebsd/lib/msun/src/s_logbl.c
index ee1a91f..1641dfb 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_logbl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_logbl.c
@@ -1,5 +1,4 @@
 /*
- * From: @(#)s_ilogb.c 5.1 93/09/24
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
  *
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <float.h>
 #include <limits.h>
 #include <math.h>
diff --git a/libm/upstream-freebsd/lib/msun/src/s_lrint.c b/libm/upstream-freebsd/lib/msun/src/s_lrint.c
index be00cbb..b1e9654 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_lrint.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_lrint.c
@@ -26,12 +26,10 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
 #include <fenv.h>
 #include <math.h>
 
 #ifndef type
-__FBSDID("$FreeBSD$");
 #define type		double
 #define	roundit		rint
 #define dtype		long
diff --git a/libm/upstream-freebsd/lib/msun/src/s_lrintf.c b/libm/upstream-freebsd/lib/msun/src/s_lrintf.c
index a757ded..1c040e8 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_lrintf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_lrintf.c
@@ -1,6 +1,3 @@
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #define type		float
 #define	roundit		rintf
 #define dtype		long
diff --git a/libm/upstream-freebsd/lib/msun/src/s_lrintl.c b/libm/upstream-freebsd/lib/msun/src/s_lrintl.c
index 497b442..91614e8 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_lrintl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_lrintl.c
@@ -1,6 +1,3 @@
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #define type		long double
 #define	roundit		rintl
 #define dtype		long
diff --git a/libm/upstream-freebsd/lib/msun/src/s_lround.c b/libm/upstream-freebsd/lib/msun/src/s_lround.c
index 00f4b95..ae2f5ce 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_lround.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_lround.c
@@ -26,13 +26,11 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
 #include <sys/limits.h>
 #include <fenv.h>
 #include <math.h>
 
 #ifndef type
-__FBSDID("$FreeBSD$");
 #define type		double
 #define	roundit		round
 #define dtype		long
diff --git a/libm/upstream-freebsd/lib/msun/src/s_lroundf.c b/libm/upstream-freebsd/lib/msun/src/s_lroundf.c
index e24fe7f..86e63cc 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_lroundf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_lroundf.c
@@ -1,6 +1,3 @@
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #define type		float
 #define	roundit		roundf
 #define dtype		long
diff --git a/libm/upstream-freebsd/lib/msun/src/s_lroundl.c b/libm/upstream-freebsd/lib/msun/src/s_lroundl.c
index e410827..57a2e90 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_lroundl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_lroundl.c
@@ -1,6 +1,3 @@
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #define type		long double
 #define	roundit		roundl
 #define dtype		long
diff --git a/libm/upstream-freebsd/lib/msun/src/s_modf.c b/libm/upstream-freebsd/lib/msun/src/s_modf.c
index ab13191..6ee2d5a 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_modf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_modf.c
@@ -1,4 +1,3 @@
-/* @(#)s_modf.c 5.1 93/09/24 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,10 +9,6 @@
  * ====================================================
  */
 
-#ifndef lint
-static char rcsid[] = "$FreeBSD$";
-#endif
-
 /*
  * modf(double x, double *iptr)
  * return fraction part of x, and return x's integral part in *iptr.
diff --git a/libm/upstream-freebsd/lib/msun/src/s_modff.c b/libm/upstream-freebsd/lib/msun/src/s_modff.c
index 062259c..39f6c1c 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_modff.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_modff.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include "math.h"
 #include "math_private.h"
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_modfl.c b/libm/upstream-freebsd/lib/msun/src/s_modfl.c
index 8e5c4d3..32470eb 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_modfl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_modfl.c
@@ -34,8 +34,6 @@
  * software is freely granted, provided that this notice
  * is preserved.
  * ====================================================
- *
- * $FreeBSD$
  */
 
 #include <float.h>
diff --git a/libm/upstream-freebsd/lib/msun/src/s_nan.c b/libm/upstream-freebsd/lib/msun/src/s_nan.c
index 1345f22..d129a55 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_nan.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_nan.c
@@ -24,8 +24,6 @@
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
- *
- * $FreeBSD$
  */
 
 #include <sys/endian.h>
diff --git a/libm/upstream-freebsd/lib/msun/src/s_nearbyint.c b/libm/upstream-freebsd/lib/msun/src/s_nearbyint.c
index ae6ffde..3dcaf98 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_nearbyint.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_nearbyint.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <fenv.h>
 #include <math.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_nextafter.c b/libm/upstream-freebsd/lib/msun/src/s_nextafter.c
index 52dd21c..1b394e5 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_nextafter.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_nextafter.c
@@ -1,4 +1,3 @@
-/* @(#)s_nextafter.c 5.1 93/09/24 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* IEEE functions
  *	nextafter(x,y)
  *	return the next machine floating-point number of x in the
diff --git a/libm/upstream-freebsd/lib/msun/src/s_nextafterf.c b/libm/upstream-freebsd/lib/msun/src/s_nextafterf.c
index 96e21ef..418b126 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_nextafterf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_nextafterf.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include "math.h"
 #include "math_private.h"
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_nextafterl.c b/libm/upstream-freebsd/lib/msun/src/s_nextafterl.c
index 9c61a43..fe5a010 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_nextafterl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_nextafterl.c
@@ -1,4 +1,3 @@
-/* @(#)s_nextafter.c 5.1 93/09/24 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* IEEE functions
  *	nextafter(x,y)
  *	return the next machine floating-point number of x in the
diff --git a/libm/upstream-freebsd/lib/msun/src/s_nexttoward.c b/libm/upstream-freebsd/lib/msun/src/s_nexttoward.c
index b2a50d3..5482dc2 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_nexttoward.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_nexttoward.c
@@ -1,4 +1,3 @@
-/* @(#)s_nextafter.c 5.1 93/09/24 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * We assume that a long double has a 15-bit exponent.  On systems
  * where long double is the same as double, nexttoward() is an alias
diff --git a/libm/upstream-freebsd/lib/msun/src/s_nexttowardf.c b/libm/upstream-freebsd/lib/msun/src/s_nexttowardf.c
index 9ddfff9..05c89f4 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_nexttowardf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_nexttowardf.c
@@ -9,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <float.h>
 
 #include "fpmath.h"
diff --git a/libm/upstream-freebsd/lib/msun/src/s_remquo.c b/libm/upstream-freebsd/lib/msun/src/s_remquo.c
index 6a111df..206d290 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_remquo.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_remquo.c
@@ -1,4 +1,3 @@
-/* @(#)e_fmod.c 1.3 95/01/18 */
 /*-
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <float.h>
 
 #include "math.h"
diff --git a/libm/upstream-freebsd/lib/msun/src/s_remquof.c b/libm/upstream-freebsd/lib/msun/src/s_remquof.c
index f4c1016..9cd1485 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_remquof.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_remquof.c
@@ -1,4 +1,3 @@
-/* @(#)e_fmod.c 1.3 95/01/18 */
 /*-
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include "math.h"
 #include "math_private.h"
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_remquol.c b/libm/upstream-freebsd/lib/msun/src/s_remquol.c
index a9f5813..0dadcea 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_remquol.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_remquol.c
@@ -1,4 +1,3 @@
-/* @(#)e_fmod.c 1.3 95/01/18 */
 /*-
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <float.h>
 #include <stdint.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_rint.c b/libm/upstream-freebsd/lib/msun/src/s_rint.c
index c56f8fb..d82a9d0 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_rint.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_rint.c
@@ -1,4 +1,3 @@
-/* @(#)s_rint.c 5.1 93/09/24 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * rint(x)
  * Return x rounded to integral value according to the prevailing
diff --git a/libm/upstream-freebsd/lib/msun/src/s_rintf.c b/libm/upstream-freebsd/lib/msun/src/s_rintf.c
index f8743a4..3f0cb90 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_rintf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_rintf.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <float.h>
 #include <stdint.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_rintl.c b/libm/upstream-freebsd/lib/msun/src/s_rintl.c
index 790edbc..72c9cab 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_rintl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_rintl.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <float.h>
 #include <math.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_round.c b/libm/upstream-freebsd/lib/msun/src/s_round.c
index a112bc5..c1b55f5 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_round.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_round.c
@@ -26,9 +26,6 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <float.h>
 
 #include "math.h"
diff --git a/libm/upstream-freebsd/lib/msun/src/s_roundf.c b/libm/upstream-freebsd/lib/msun/src/s_roundf.c
index bb6f77c..7c09e09 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_roundf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_roundf.c
@@ -26,9 +26,6 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include "math.h"
 #include "math_private.h"
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_roundl.c b/libm/upstream-freebsd/lib/msun/src/s_roundl.c
index 9e85423..bc5dfe5 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_roundl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_roundl.c
@@ -26,9 +26,6 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <float.h>
 #ifdef __i386__
 #include <ieeefp.h>
diff --git a/libm/upstream-freebsd/lib/msun/src/s_scalbln.c b/libm/upstream-freebsd/lib/msun/src/s_scalbln.c
index e8c6377..42e4669 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_scalbln.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_scalbln.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <math.h>
 
 #define	NMAX	65536
diff --git a/libm/upstream-freebsd/lib/msun/src/s_significand.c b/libm/upstream-freebsd/lib/msun/src/s_significand.c
index eed80ec..62571bb 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_significand.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_significand.c
@@ -1,4 +1,3 @@
-/* @(#)s_signif.c 5.1 93/09/24 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * significand(x) computes just
  * 	scalb(x, (double) -ilogb(x)),
diff --git a/libm/upstream-freebsd/lib/msun/src/s_significandf.c b/libm/upstream-freebsd/lib/msun/src/s_significandf.c
index b33ab7b..3cdaa4d 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_significandf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_significandf.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include "math.h"
 #include "math_private.h"
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_sin.c b/libm/upstream-freebsd/lib/msun/src/s_sin.c
index 17ea846..614bcc2 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_sin.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_sin.c
@@ -1,4 +1,3 @@
-/* @(#)s_sin.c 5.1 93/09/24 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* sin(x)
  * Return sine function of x.
  *
diff --git a/libm/upstream-freebsd/lib/msun/src/s_sincos.c b/libm/upstream-freebsd/lib/msun/src/s_sincos.c
index 85e8d74..4e819ea 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_sincos.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_sincos.c
@@ -12,9 +12,6 @@
  * algorithms are contained in the original files.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <float.h>
 
 #include "math.h"
diff --git a/libm/upstream-freebsd/lib/msun/src/s_sincosf.c b/libm/upstream-freebsd/lib/msun/src/s_sincosf.c
deleted file mode 100644
index 755ff05..0000000
--- a/libm/upstream-freebsd/lib/msun/src/s_sincosf.c
+++ /dev/null
@@ -1,126 +0,0 @@
-/*-
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunPro, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice
- * is preserved.
- * ====================================================
- */
-
-/* s_sincosf.c -- float version of s_sincos.c.
- * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
- * Optimized by Bruce D. Evans.
- * Merged s_sinf.c and s_cosf.c by Steven G. Kargl.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <float.h>
-
-#include "math.h"
-#define INLINE_REM_PIO2F
-#include "math_private.h"
-#include "e_rem_pio2f.c"
-#include "k_sincosf.h"
-
-/* Small multiples of pi/2 rounded to double precision. */
-static const double
-p1pio2 = 1*M_PI_2,			/* 0x3FF921FB, 0x54442D18 */
-p2pio2 = 2*M_PI_2,			/* 0x400921FB, 0x54442D18 */
-p3pio2 = 3*M_PI_2,			/* 0x4012D97C, 0x7F3321D2 */
-p4pio2 = 4*M_PI_2;			/* 0x401921FB, 0x54442D18 */
-
-void
-sincosf(float x, float *sn, float *cs)
-{
-	float c, s;
-	double y;
-	int32_t n, hx, ix;
-
-	GET_FLOAT_WORD(hx, x);
-	ix = hx & 0x7fffffff;
-
-	if (ix <= 0x3f490fda) {		/* |x| ~<= pi/4 */
-		if (ix < 0x39800000) {	/* |x| < 2**-12 */
-			if ((int)x == 0) {
-				*sn = x;	/* x with inexact if x != 0 */
-				*cs = 1;
-				return;
-			}
-		}
-		__kernel_sincosdf(x, sn, cs);
-		return;
-	}
-
-	if (ix <= 0x407b53d1) {		/* |x| ~<= 5*pi/4 */
-		if (ix <= 0x4016cbe3) {	/* |x| ~<= 3pi/4 */
-			if (hx > 0) {
-				__kernel_sincosdf(x - p1pio2, cs, sn);
-				*cs = -*cs;
-			} else {
-				__kernel_sincosdf(x + p1pio2, cs, sn);
-				*sn = -*sn;
-			}
-		} else {
-			if (hx > 0)
-				__kernel_sincosdf(x - p2pio2, sn, cs);
-			else
-				__kernel_sincosdf(x + p2pio2, sn, cs);
-			*sn = -*sn;
-			*cs = -*cs;
-		}
-		return;
-	}
-
-	if (ix <= 0x40e231d5) {		/* |x| ~<= 9*pi/4 */
-		if (ix <= 0x40afeddf) {	/* |x| ~<= 7*pi/4 */
-			if (hx > 0) {
-				__kernel_sincosdf(x - p3pio2, cs, sn);
-				*sn = -*sn;
-			} else {
-				__kernel_sincosdf(x + p3pio2, cs, sn);
-				*cs = -*cs;
-			}
-		} else {
-			if (hx > 0)
-				__kernel_sincosdf(x - p4pio2, sn, cs);
-			else
-				__kernel_sincosdf(x + p4pio2, sn, cs);
-		}
-		return;
-	}
-
-	/* If x = Inf or NaN, then sin(x) = NaN and cos(x) = NaN. */
-	if (ix >= 0x7f800000) {
-		*sn = x - x;
-		*cs = x - x;
-		return;
-	}
-
-	/* Argument reduction. */
-	n = __ieee754_rem_pio2f(x, &y);
-	__kernel_sincosdf(y, &s, &c);
-
-	switch(n & 3) {
-	case 0:
-		*sn = s;
-		*cs = c;
-		break;
-	case 1:
-		*sn = c;
-		*cs = -s;
-		break;
-	case 2:
-		*sn = -s;
-		*cs = -c;
-		break;
-	default:
-		*sn = -c;
-		*cs = s;
-	}
-}
-
-
diff --git a/libm/upstream-freebsd/lib/msun/src/s_sincosl.c b/libm/upstream-freebsd/lib/msun/src/s_sincosl.c
index 3dd3457..7fb69aa 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_sincosl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_sincosl.c
@@ -26,9 +26,6 @@
  * s_sinl.c and s_cosl.c merged by Steven G. Kargl.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <float.h>
 #ifdef __i386__
 #include <ieeefp.h>
diff --git a/libm/upstream-freebsd/lib/msun/src/s_sinf.c b/libm/upstream-freebsd/lib/msun/src/s_sinf.c
deleted file mode 100644
index 41b5dc1..0000000
--- a/libm/upstream-freebsd/lib/msun/src/s_sinf.c
+++ /dev/null
@@ -1,85 +0,0 @@
-/* s_sinf.c -- float version of s_sin.c.
- * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
- * Optimized by Bruce D. Evans.
- */
-
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunPro, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice
- * is preserved.
- * ====================================================
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <float.h>
-
-#include "math.h"
-#define	INLINE_KERNEL_COSDF
-#define	INLINE_KERNEL_SINDF
-#define INLINE_REM_PIO2F
-#include "math_private.h"
-#include "e_rem_pio2f.c"
-#include "k_cosf.c"
-#include "k_sinf.c"
-
-/* Small multiples of pi/2 rounded to double precision. */
-static const double
-s1pio2 = 1*M_PI_2,			/* 0x3FF921FB, 0x54442D18 */
-s2pio2 = 2*M_PI_2,			/* 0x400921FB, 0x54442D18 */
-s3pio2 = 3*M_PI_2,			/* 0x4012D97C, 0x7F3321D2 */
-s4pio2 = 4*M_PI_2;			/* 0x401921FB, 0x54442D18 */
-
-float
-sinf(float x)
-{
-	double y;
-	int32_t n, hx, ix;
-
-	GET_FLOAT_WORD(hx,x);
-	ix = hx & 0x7fffffff;
-
-	if(ix <= 0x3f490fda) {		/* |x| ~<= pi/4 */
-	    if(ix<0x39800000)		/* |x| < 2**-12 */
-		if(((int)x)==0) return x;	/* x with inexact if x != 0 */
-	    return __kernel_sindf(x);
-	}
-	if(ix<=0x407b53d1) {		/* |x| ~<= 5*pi/4 */
-	    if(ix<=0x4016cbe3) {	/* |x| ~<= 3pi/4 */
-		if(hx>0)
-		    return __kernel_cosdf(x - s1pio2);
-		else
-		    return -__kernel_cosdf(x + s1pio2);
-	    } else
-		return __kernel_sindf((hx > 0 ? s2pio2 : -s2pio2) - x);
-	}
-	if(ix<=0x40e231d5) {		/* |x| ~<= 9*pi/4 */
-	    if(ix<=0x40afeddf) {	/* |x| ~<= 7*pi/4 */
-		if(hx>0)
-		    return -__kernel_cosdf(x - s3pio2);
-		else
-		    return __kernel_cosdf(x + s3pio2);
-	    } else
-		return __kernel_sindf(x + (hx > 0 ? -s4pio2 : s4pio2));
-	}
-
-    /* sin(Inf or NaN) is NaN */
-	else if (ix>=0x7f800000) return x-x;
-
-    /* general argument reduction needed */
-	else {
-	    n = __ieee754_rem_pio2f(x,&y);
-	    switch(n&3) {
-		case 0: return  __kernel_sindf(y);
-		case 1: return  __kernel_cosdf(y);
-		case 2: return  __kernel_sindf(-y);
-		default:
-			return -__kernel_cosdf(y);
-	    }
-	}
-}
diff --git a/libm/upstream-freebsd/lib/msun/src/s_sinl.c b/libm/upstream-freebsd/lib/msun/src/s_sinl.c
index c5ee106..d0b7b34 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_sinl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_sinl.c
@@ -26,9 +26,6 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <float.h>
 #ifdef __i386__
 #include <ieeefp.h>
diff --git a/libm/upstream-freebsd/lib/msun/src/s_tan.c b/libm/upstream-freebsd/lib/msun/src/s_tan.c
index 196c27e..20b9516 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_tan.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_tan.c
@@ -1,4 +1,3 @@
-/* @(#)s_tan.c 5.1 93/09/24 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* tan(x)
  * Return tangent function of x.
  *
diff --git a/libm/upstream-freebsd/lib/msun/src/s_tanf.c b/libm/upstream-freebsd/lib/msun/src/s_tanf.c
index 4fe8c17..2462f96 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_tanf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_tanf.c
@@ -14,9 +14,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <float.h>
 
 #include "math.h"
diff --git a/libm/upstream-freebsd/lib/msun/src/s_tanh.c b/libm/upstream-freebsd/lib/msun/src/s_tanh.c
index 6d26c69..cc8daed 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_tanh.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_tanh.c
@@ -1,4 +1,3 @@
-/* @(#)s_tanh.c 5.1 93/09/24 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /* Tanh(x)
  * Return the Hyperbolic Tangent of x
  *
diff --git a/libm/upstream-freebsd/lib/msun/src/s_tanhf.c b/libm/upstream-freebsd/lib/msun/src/s_tanhf.c
index f537be4..e56813a 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_tanhf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_tanhf.c
@@ -13,9 +13,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include "math.h"
 #include "math_private.h"
 
diff --git a/libm/upstream-freebsd/lib/msun/src/s_tanhl.c b/libm/upstream-freebsd/lib/msun/src/s_tanhl.c
index b753186..3285b9a 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_tanhl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_tanhl.c
@@ -1,6 +1,5 @@
 /* from: FreeBSD: head/lib/msun/src/s_tanhl.c XXX */
 
-/* @(#)s_tanh.c 5.1 93/09/24 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -12,9 +11,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * See s_tanh.c for complete comments.
  *
diff --git a/libm/upstream-freebsd/lib/msun/src/s_tanl.c b/libm/upstream-freebsd/lib/msun/src/s_tanl.c
index c21e38d..3736477 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_tanl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_tanl.c
@@ -26,9 +26,6 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * Limited testing on pseudorandom numbers drawn within [0:4e8] shows
  * an accuracy of <= 1.5 ULP where 247024 values of x out of 40 million
diff --git a/libm/upstream-freebsd/lib/msun/src/s_tgammaf.c b/libm/upstream-freebsd/lib/msun/src/s_tgammaf.c
index 6cbd356..9fa9df9 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_tgammaf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_tgammaf.c
@@ -26,9 +26,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <math.h>
 
 /*
diff --git a/libm/upstream-freebsd/lib/msun/src/s_trunc.c b/libm/upstream-freebsd/lib/msun/src/s_trunc.c
index 63a6753..3ec59f2 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_trunc.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_trunc.c
@@ -1,4 +1,3 @@
-/* @(#)s_floor.c 5.1 93/09/24 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * trunc(x)
  * Return x rounded toward 0 to integral value
diff --git a/libm/upstream-freebsd/lib/msun/src/s_truncf.c b/libm/upstream-freebsd/lib/msun/src/s_truncf.c
index 384eaee..3f4db30 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_truncf.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_truncf.c
@@ -1,4 +1,3 @@
-/* @(#)s_floor.c 5.1 93/09/24 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -10,9 +9,6 @@
  * ====================================================
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * truncf(x)
  * Return x rounded toward 0 to integral value
diff --git a/libm/upstream-freebsd/lib/msun/src/s_truncl.c b/libm/upstream-freebsd/lib/msun/src/s_truncl.c
index 9e2b511..81e794d 100644
--- a/libm/upstream-freebsd/lib/msun/src/s_truncl.c
+++ b/libm/upstream-freebsd/lib/msun/src/s_truncl.c
@@ -7,13 +7,8 @@
  * software is freely granted, provided that this notice
  * is preserved.
  * ====================================================
- *
- * From: @(#)s_floor.c 5.1 93/09/24
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 /*
  * truncl(x)
  * Return x rounded toward 0 to integral value
diff --git a/libm/upstream-freebsd/lib/msun/src/w_cabs.c b/libm/upstream-freebsd/lib/msun/src/w_cabs.c
index 543b858..4986461 100644
--- a/libm/upstream-freebsd/lib/msun/src/w_cabs.c
+++ b/libm/upstream-freebsd/lib/msun/src/w_cabs.c
@@ -5,9 +5,6 @@
  * Placed into the Public Domain, 1994.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 #include <float.h>
 #include <math.h>
diff --git a/libm/upstream-freebsd/lib/msun/src/w_cabsf.c b/libm/upstream-freebsd/lib/msun/src/w_cabsf.c
index b5065c8..aedbdef 100644
--- a/libm/upstream-freebsd/lib/msun/src/w_cabsf.c
+++ b/libm/upstream-freebsd/lib/msun/src/w_cabsf.c
@@ -5,11 +5,6 @@
  * Placed into the Public Domain, 1994.
  */
 
-#ifndef lint
-static const char rcsid[] =
-  "$FreeBSD$";
-#endif /* not lint */
-
 #include <complex.h>
 #include <math.h>
 #include "math_private.h"
diff --git a/libm/upstream-freebsd/lib/msun/src/w_cabsl.c b/libm/upstream-freebsd/lib/msun/src/w_cabsl.c
index b715e0c..1539944 100644
--- a/libm/upstream-freebsd/lib/msun/src/w_cabsl.c
+++ b/libm/upstream-freebsd/lib/msun/src/w_cabsl.c
@@ -7,9 +7,6 @@
  * Modified by Steven G. Kargl for the long double type.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <complex.h>
 #include <math.h>
 
diff --git a/libm/upstream-freebsd/lib/msun/src/w_dremf.c b/libm/upstream-freebsd/lib/msun/src/w_dremf.c
index 4bfcff2..18df078 100644
--- a/libm/upstream-freebsd/lib/msun/src/w_dremf.c
+++ b/libm/upstream-freebsd/lib/msun/src/w_dremf.c
@@ -4,7 +4,6 @@
  * Written by J.T. Conklin, <jtc@wimsey.com>
  * Placed into the Public Domain, 1994.
  */
-/* $FreeBSD$ */
 
 #include "math.h"
 #include "math_private.h"
diff --git a/linker/Android.bp b/linker/Android.bp
index 0533ae9..563cf3d 100644
--- a/linker/Android.bp
+++ b/linker/Android.bp
@@ -1,14 +1,3 @@
-// ========================================================
-// linker_wrapper - Linux Bionic (on the host)
-// ========================================================
-
-// This is used for bionic on (host) Linux to bootstrap our linker embedded into
-// a binary.
-//
-// Host bionic binaries do not have a PT_INTERP section, instead this gets
-// embedded as the entry point, and the linker is embedded as ELF sections in
-// each binary. There's a linker script that sets all of that up (generated by
-// extract_linker), and defines the extern symbols used in this file.
 package {
     default_team: "trendy_team_native_tools_libraries",
     default_applicable_licenses: ["bionic_linker_license"],
@@ -25,6 +14,27 @@
     ],
 }
 
+linker_common_flags = [
+    "-fno-stack-protector",
+    "-Wstrict-overflow=5",
+    "-fvisibility=hidden",
+    "-Wall",
+    "-Wextra",
+    "-Wunused",
+    "-Werror",
+]
+
+// ========================================================
+// linker_wrapper - Linux Bionic (on the host)
+// ========================================================
+
+// This is used for bionic on (host) Linux to bootstrap our linker embedded into
+// a binary.
+//
+// Host bionic binaries do not have a PT_INTERP section, instead this gets
+// embedded as the entry point, and the linker is embedded as ELF sections in
+// each binary. There's a linker script that sets all of that up (generated by
+// extract_linker), and defines the extern symbols used in this file.
 cc_object {
     name: "linker_wrapper",
     host_supported: true,
@@ -36,15 +46,7 @@
         },
     },
 
-    cflags: [
-        "-fno-stack-protector",
-        "-Wstrict-overflow=5",
-        "-fvisibility=hidden",
-        "-Wall",
-        "-Wextra",
-        "-Wno-unused",
-        "-Werror",
-    ],
+    cflags: linker_common_flags,
 
     srcs: [
         "linker_wrapper.cpp",
@@ -83,26 +85,8 @@
         },
     },
 
-    cflags: [
-        "-fno-stack-protector",
-        "-Wstrict-overflow=5",
-        "-fvisibility=hidden",
-        "-Wall",
-        "-Wextra",
-        "-Wunused",
-        "-Werror",
-    ],
-
-    // TODO: split out the asflags.
-    asflags: [
-        "-fno-stack-protector",
-        "-Wstrict-overflow=5",
-        "-fvisibility=hidden",
-        "-Wall",
-        "-Wextra",
-        "-Wunused",
-        "-Werror",
-    ],
+    cflags: linker_common_flags,
+    asflags: linker_common_flags,
 
     product_variables: {
         debuggable: {
@@ -231,6 +215,7 @@
     name: "linker_sources_riscv64",
     srcs: [
         "arch/riscv64/begin.S",
+        "arch/riscv64/tlsdesc_resolver.S",
     ],
 }
 
@@ -272,112 +257,82 @@
 // A template for the linker binary. May be inherited by native bridge implementations.
 cc_defaults {
     name: "linker_bin_template",
-    defaults: ["linker_defaults"],
+    defaults: [
+        "linker_defaults",
+        "keep_symbols",
+    ],
 
     srcs: [":linker_sources"],
 
     arch: {
         arm: {
             srcs: [":linker_sources_arm"],
-
-            // Arm 32 bit does not produce complete exidx unwind information
-            // so keep the .debug_frame which is relatively small and does
-            // include needed unwind information.
-            // See b/242162222 for details.
-            strip: {
-                keep_symbols_and_debug_frame: true,
-            },
         },
         arm64: {
             srcs: [":linker_sources_arm64"],
-
-            // Leave the symbols in the shared library so that stack unwinders can produce
-            // meaningful name resolution.
-            strip: {
-                keep_symbols: true,
-            },
         },
         riscv64: {
             srcs: [":linker_sources_riscv64"],
-
-            // Leave the symbols in the shared library so that stack unwinders can produce
-            // meaningful name resolution.
-            strip: {
-                keep_symbols: true,
-            },
         },
         x86: {
             srcs: [":linker_sources_x86"],
-
-            // Leave the symbols in the shared library so that stack unwinders can produce
-            // meaningful name resolution.
-            strip: {
-                keep_symbols: true,
-            },
         },
         x86_64: {
             srcs: [":linker_sources_x86_64"],
-
-            // Leave the symbols in the shared library so that stack unwinders can produce
-            // meaningful name resolution.
-            strip: {
-                keep_symbols: true,
-            },
         },
     },
 
+    static_executable: true,
+
     // -shared is used to overwrite the -Bstatic and -static flags triggered by enabling
-    // static_executable. This dynamic linker is actually a shared object linked with static
+    // static_executable. The dynamic linker is actually a shared object linked with static
     // libraries.
     ldflags: [
         "-shared",
         "-Wl,-Bsymbolic",
         "-Wl,--exclude-libs,ALL",
         "-Wl,-soname,ld-android.so",
+        // When the linker applies its own IRELATIVE relocations, it will only read DT_REL[A] and
+        // DT_JMPREL, not DT_ANDROID_REL[A], which can also theoretically contain IRELATIVE
+        // relocations. lld has been taught to not store them there as a bug workaround (see
+        // https://llvm.org/pr86751) but the workaround could be removed at some point in the
+        // future. So we explicitly prevent it from doing so by disabling DT_ANDROID_REL[A] when
+        // linking the linker (DT_RELR cannot encode IRELATIVE relocations).
+        "-Wl,--pack-dyn-relocs=relr",
     ],
 
-    // we are going to link libc++_static manually because
-    // when stl is not set to "none" build system adds libdl
-    // to the list of static libraries which needs to be
-    // avoided in the case of building loader.
+    // We link libc++_static manually because otherwise the build system will
+    // automatically add libdl to the list of static libraries.
     stl: "none",
 
-    // we don't want crtbegin.o (because we have begin.o), so unset it
-    // just for this module
+    // We don't want crtbegin.o (because we have our own arch/*/begin.o),
+    // so unset it just for this module.
     nocrt: true,
 
-    static_executable: true,
-
     // Insert an extra objcopy step to add prefix to symbols. This is needed to prevent gdb
     // looking up symbols in the linker by mistake.
     prefix_symbols: "__dl_",
 
     sanitize: {
         hwaddress: false,
+        memtag_stack: false,
     },
 
     static_libs: [
         "liblinker_main",
         "liblinker_malloc",
 
-        "libc++_static",
+        // We use a version of libc++ built without exceptions,
+        // because accessing EH globals uses ELF TLS,
+        // which is not supported in the loader.
+        "libc++_static_noexcept",
+
         "libc_nomalloc",
         "libc_dynamic_dispatch",
         "libm",
         "libunwind",
     ],
 
-    // Ensure that if the linker needs __gnu_Unwind_Find_exidx, then the linker will have a
-    // definition of the symbol. The linker links against libgcc.a, whose arm32 unwinder has a weak
-    // reference to __gnu_Unwind_Find_exidx, which isn't sufficient to pull in the strong definition
-    // of __gnu_Unwind_Find_exidx from libc. An unresolved weak reference would create a
-    // non-relative dynamic relocation in the linker binary, which complicates linker startup.
-    //
-    // This line should be unnecessary because the linker's dependency on libunwind_llvm.a should
-    // override libgcc.a, but this line provides a simpler guarantee. It can be removed once the
-    // linker stops linking against libgcc.a's arm32 unwinder.
-    whole_static_libs: ["libc_unwind_static"],
-
     system_shared_libs: [],
 
     // Opt out of native_coverage when opting out of system_shared_libs
@@ -427,7 +382,7 @@
                 "linker_debuggerd_android.cpp",
             ],
             static_libs: [
-                "libc++demangle",
+                "libc++demangle_noexcept",
                 "libdebuggerd_handler_fallback",
             ],
         },
@@ -464,35 +419,6 @@
 }
 
 cc_library {
-    // NOTE: --exclude-libs=libgcc.a makes sure that any symbols ld-android.so pulls from
-    // libgcc.a are made static to ld-android.so.  This in turn ensures that libraries that
-    // a) pull symbols from libgcc.a and b) depend on ld-android.so will not rely on ld-android.so
-    // to provide those symbols, but will instead pull them from libgcc.a.  Specifically,
-    // we use this property to make sure libc.so has its own copy of the code from
-    // libgcc.a it uses.
-    //
-    // DO NOT REMOVE --exclude-libs!
-
-    ldflags: [
-        "-Wl,--exclude-libs=libgcc.a",
-        "-Wl,--exclude-libs=libgcc_stripped.a",
-        "-Wl,--exclude-libs=libclang_rt.builtins-arm-android.a",
-        "-Wl,--exclude-libs=libclang_rt.builtins-aarch64-android.a",
-        "-Wl,--exclude-libs=libclang_rt.builtins-riscv64-android.a",
-        "-Wl,--exclude-libs=libclang_rt.builtins-i686-android.a",
-        "-Wl,--exclude-libs=libclang_rt.builtins-x86_64-android.a",
-    ],
-
-    // for x86, exclude libgcc_eh.a for the same reasons as above
-    arch: {
-        x86: {
-            ldflags: ["-Wl,--exclude-libs=libgcc_eh.a"],
-        },
-        x86_64: {
-            ldflags: ["-Wl,--exclude-libs=libgcc_eh.a"],
-        },
-    },
-
     srcs: ["ld_android.cpp"],
     cflags: [
         "-Wall",
@@ -573,6 +499,7 @@
         "libasync_safe",
         "libbase",
         "liblog_for_runtime_apex",
+        "libprocinfo", // For procinfo::MappedFileSize()
     ],
 
     data_libs: [
diff --git a/linker/arch/arm64/tlsdesc_resolver.S b/linker/arch/arm64/tlsdesc_resolver.S
index ad155e2..84407dd 100644
--- a/linker/arch/arm64/tlsdesc_resolver.S
+++ b/linker/arch/arm64/tlsdesc_resolver.S
@@ -56,12 +56,12 @@
   ldr x22, [x0]                 // TlsDynamicResolverArg::generation
 
   cmp x21, x22
-  b.lo .fallback
+  b.lo L(fallback)
 
   ldr x21, [x0, #8]             // TlsIndex::module_id
   ldr x22, [x0, #16]            // TlsIndex::offset
   ldr x21, [x20, x21, lsl #3]   // TlsDtv::modules[module_id]
-  cbz x21, .fallback
+  cbz x21, L(fallback)
   add x0, x21, x22
   sub x0, x0, x19
 
@@ -75,7 +75,7 @@
   .cfi_restore x20
   ret
 
-.fallback:
+L(fallback):
   .cfi_restore_state
   ldp x21, x22, [sp, #16]
   .cfi_restore x21
diff --git a/linker/arch/riscv64/tlsdesc_resolver.S b/linker/arch/riscv64/tlsdesc_resolver.S
new file mode 100644
index 0000000..fedc926
--- /dev/null
+++ b/linker/arch/riscv64/tlsdesc_resolver.S
@@ -0,0 +1,201 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <platform/bionic/tls_defines.h>
+#include <private/bionic_asm.h>
+#include <private/bionic_elf_dtv_offset.h>
+
+#ifndef TLS_DTV_OFFSET
+  #error "TLS_DTV_OFFSET not defined"
+#endif
+
+.globl __tls_get_addr
+
+// spill a register onto the stack
+.macro spill reg, idx, f=
+  \f\()sd \reg, \idx*8(sp)
+  .cfi_rel_offset \reg, (\idx)*8
+.endm
+
+// reload a value from the stack
+.macro reload reg, idx, f=
+  \f\()ld \reg, \idx*8(sp)
+  .cfi_same_value \reg
+.endm
+
+.macro spill_vector_regs
+  csrr a3, vlenb
+  slli a3, a3, 3
+  sub sp, sp, a3
+  vs8r.v v0, (sp)
+  sub sp, sp, a3
+  vs8r.v v8, (sp)
+  sub sp, sp, a3
+  vs8r.v v16, (sp)
+  sub sp, sp, a3
+  vs8r.v v24, (sp)
+.endm
+
+.macro reload_vector_regs
+  csrr a3, vlenb
+  slli a3, a3, 3
+  vl8r.v v24, (sp)
+  add sp, sp, a3
+  vl8r.v v16, (sp)
+  add sp, sp, a3
+  vl8r.v v8, (sp)
+  add sp, sp, a3
+  vl8r.v v0, (sp)
+  add sp, sp, a3
+.endm
+
+// We save a total of 35 registers
+.macro for_each_saved_reg op max
+  \op ra, 1
+  \op a1, 2
+  \op a2, 3
+  \op a3, 4
+  \op a4, 5
+  \op a5, 6
+  \op a6, 7
+  \op a7, 8
+  \op t0, 9
+  \op t1, 10
+  \op t2, 11
+  \op t3, 12
+  \op t4, 13
+  \op t5, 14
+  \op t6, 15
+  // save floating point regs
+  \op ft0, 16, f
+  \op ft1, 17, f
+  \op ft2, 18, f
+  \op ft3, 19, f
+  \op ft4, 20, f
+  \op ft5, 21, f
+  \op ft6, 22, f
+  \op ft7, 23, f
+  \op ft8, 24, f
+  \op ft9, 25, f
+  \op ft10, 26, f
+  \op ft11, 27, f
+  \op fa0, 28, f
+  \op fa1, 29, f
+  \op fa2, 30, f
+  \op fa3, 31, f
+  \op fa4, 32, f
+  \op fa5, 33, f
+  \op fa6, 34, f
+  \op fa7, 35, f
+.endm
+
+// These resolver functions must preserve every register except a0. They set a0
+// to the offset of the TLS symbol relative to the thread pointer.
+
+ENTRY_PRIVATE(tlsdesc_resolver_static)
+  ld a0, 8(a0)
+  jr t0
+END(tlsdesc_resolver_static)
+
+ENTRY_PRIVATE(tlsdesc_resolver_dynamic)
+  // We only need 3 stack slots, but still require a 4th slot for alignment
+  addi sp, sp, -4*8
+  .cfi_def_cfa_offset 4*8
+  spill a1, 1
+  spill a2, 2
+  spill a3, 3
+
+  ld a2, (TLS_SLOT_DTV * 8)(tp) // a2 = &DTV
+  ld a1, (a2)                   // a1 = TlsDtv::generation (DTV[0])
+
+  ld a0, 8(a0)                  // a0 = TlsDynamicResolverArg*
+  ld a3, (a0)                   // a3 = TlsDynamicResolverArg::generation
+
+  // Fallback if TlsDtv::generation < TlsDynamicResolverArg::generation
+  // since we need to call __tls_get_addr
+  blt a1, a3, L(fallback)
+
+  // We can't modify a0 yet, since tlsdesc_resolver_dynamic_slow_path requires
+  // a pointer to the TlsIndex, which is the second field of the
+  // TlsDynamicResolverArg. As a result, we can't modify a0 until we will no
+  // longer fallback.
+  ld a1, 8(a0)                  // a1 = TlsIndex::module_id
+  slli a1, a1, 3                // a1 = module_id*8 -- scale the idx
+  add a1, a2, a1                // a1 = &TlsDtv::modules[module_id]
+  ld a1, (a1)                   // a1 = TlsDtv::modules[module_id]
+  beqz a1, L(fallback)
+  ld a3, 16(a0)                 // a3 = TlsIndex::offset
+  add a0, a1, a3                // a0 = TlsDtv::modules[module_id] + offset
+  sub a0, a0, tp                // a0 = TlsDtv::modules[module_id] + offset - tp
+
+  .cfi_remember_state
+  reload a3, 3
+  reload a2, 2
+  reload a1, 1
+  addi sp, sp, 4*8
+  .cfi_adjust_cfa_offset -4*8
+  jr t0
+
+L(fallback):
+  reload a3, 3
+  reload a2, 2
+  reload a1, 1
+  addi sp, sp, 4*8
+  .cfi_adjust_cfa_offset -4*8
+  j tlsdesc_resolver_dynamic_slow_path
+END(tlsdesc_resolver_dynamic)
+
+// On entry, a0 is the address of a TlsDynamicResolverArg object rather than
+// the TlsDescriptor address passed to the original resolver function.
+ENTRY_PRIVATE(tlsdesc_resolver_dynamic_slow_path)
+  // We save a total of 35 registers, but vector spills require an alignment
+  // of 16, so use an extra slot to align it correctly.
+  addi sp, sp, (-8*36)
+  .cfi_def_cfa_offset (8 * 36)
+  for_each_saved_reg spill, 36
+  spill_vector_regs
+
+  add a0, a0, 8
+  call __tls_get_addr
+  addi a0, a0, (-1 * TLS_DTV_OFFSET)  // Correct the address by TLS_DTV_OFFSET
+  sub a0, a0, tp
+
+  reload_vector_regs
+  for_each_saved_reg reload, 36
+  addi sp, sp, 8*36
+  .cfi_def_cfa_offset 0
+  jr t0
+END(tlsdesc_resolver_dynamic_slow_path)
+
+// The address of an unresolved weak TLS symbol evaluates to NULL with TLSDESC.
+// The value returned by this function is added to the thread pointer, so return
+// a negated thread pointer to cancel it out.
+ENTRY_PRIVATE(tlsdesc_resolver_unresolved_weak)
+  sub a0, zero, tp
+  jr t0
+END(tlsdesc_resolver_unresolved_weak)
diff --git a/linker/linker.cpp b/linker/linker.cpp
index b0caedd..2eb3cae 100644
--- a/linker/linker.cpp
+++ b/linker/linker.cpp
@@ -2788,7 +2788,7 @@
   return true;
 }
 
-void soinfo::apply_relr_reloc(ElfW(Addr) offset) {
+static void apply_relr_reloc(ElfW(Addr) offset, ElfW(Addr) load_bias) {
   ElfW(Addr) address = offset + load_bias;
   *reinterpret_cast<ElfW(Addr)*>(address) += load_bias;
 }
@@ -2796,20 +2796,18 @@
 // Process relocations in SHT_RELR section (experimental).
 // Details of the encoding are described in this post:
 //   https://groups.google.com/d/msg/generic-abi/bX460iggiKg/Pi9aSwwABgAJ
-bool soinfo::relocate_relr() {
-  ElfW(Relr)* begin = relr_;
-  ElfW(Relr)* end = relr_ + relr_count_;
+bool relocate_relr(const ElfW(Relr)* begin, const ElfW(Relr)* end, ElfW(Addr) load_bias) {
   constexpr size_t wordsize = sizeof(ElfW(Addr));
 
   ElfW(Addr) base = 0;
-  for (ElfW(Relr)* current = begin; current < end; ++current) {
+  for (const ElfW(Relr)* current = begin; current < end; ++current) {
     ElfW(Relr) entry = *current;
     ElfW(Addr) offset;
 
     if ((entry&1) == 0) {
       // Even entry: encodes the offset for next relocation.
       offset = static_cast<ElfW(Addr)>(entry);
-      apply_relr_reloc(offset);
+      apply_relr_reloc(offset, load_bias);
       // Set base offset for subsequent bitmap entries.
       base = offset + wordsize;
       continue;
@@ -2820,7 +2818,7 @@
     while (entry != 0) {
       entry >>= 1;
       if ((entry&1) != 0) {
-        apply_relr_reloc(offset);
+        apply_relr_reloc(offset, load_bias);
       }
       offset += wordsize;
     }
@@ -2866,11 +2864,12 @@
 
   TlsSegment tls_segment;
   if (__bionic_get_tls_segment(phdr, phnum, load_bias, &tls_segment)) {
-    if (!__bionic_check_tls_alignment(&tls_segment.alignment)) {
-      if (!relocating_linker) {
-        DL_ERR("TLS segment alignment in \"%s\" is not a power of 2: %zu",
-               get_realpath(), tls_segment.alignment);
-      }
+    // The loader does not (currently) support ELF TLS, so it shouldn't have
+    // a TLS segment.
+    CHECK(!relocating_linker && "TLS not supported in loader");
+    if (!__bionic_check_tls_align(tls_segment.aligned_size.align.value)) {
+      DL_ERR("TLS segment alignment in \"%s\" is not a power of 2: %zu", get_realpath(),
+             tls_segment.aligned_size.align.value);
       return false;
     }
     tls_ = std::make_unique<soinfo_tls>();
@@ -3364,14 +3363,14 @@
                               "\"%s\" has text relocations",
                               get_realpath());
     add_dlwarning(get_realpath(), "text relocations");
-    if (phdr_table_unprotect_segments(phdr, phnum, load_bias) < 0) {
+    if (phdr_table_unprotect_segments(phdr, phnum, load_bias, should_pad_segments_) < 0) {
       DL_ERR("can't unprotect loadable segments for \"%s\": %s", get_realpath(), strerror(errno));
       return false;
     }
   }
 #endif
 
-  if (!relocate(lookup_list)) {
+  if (this != solist_get_vdso() && !relocate(lookup_list)) {
     return false;
   }
 
@@ -3380,7 +3379,7 @@
 #if !defined(__LP64__)
   if (has_text_relocations) {
     // All relocations are done, we can protect our segments back to read-only.
-    if (phdr_table_protect_segments(phdr, phnum, load_bias) < 0) {
+    if (phdr_table_protect_segments(phdr, phnum, load_bias, should_pad_segments_) < 0) {
       DL_ERR("can't protect segments for \"%s\": %s",
              get_realpath(), strerror(errno));
       return false;
@@ -3418,7 +3417,7 @@
 }
 
 bool soinfo::protect_relro() {
-  if (phdr_table_protect_gnu_relro(phdr, phnum, load_bias) < 0) {
+  if (phdr_table_protect_gnu_relro(phdr, phnum, load_bias, should_pad_segments_) < 0) {
     DL_ERR("can't enable GNU RELRO protection for \"%s\": %s",
            get_realpath(), strerror(errno));
     return false;
@@ -3596,7 +3595,7 @@
   // 2. Initialize other namespaces
 
   for (auto& ns_config : namespace_configs) {
-    if (namespaces.find(ns_config->name()) != namespaces.end()) {
+    if (namespaces.contains(ns_config->name())) {
       continue;
     }
 
diff --git a/linker/linker.h b/linker/linker.h
index 275182f..ac2222d 100644
--- a/linker/linker.h
+++ b/linker/linker.h
@@ -179,6 +179,7 @@
 int get_application_target_sdk_version();
 ElfW(Versym) find_verdef_version_index(const soinfo* si, const version_info* vi);
 bool validate_verdef_section(const soinfo* si);
+bool relocate_relr(const ElfW(Relr)* begin, const ElfW(Relr)* end, ElfW(Addr) load_bias);
 
 struct platform_properties {
 #if defined(__aarch64__)
diff --git a/linker/linker_config.cpp b/linker/linker_config.cpp
index ad40c50..70430b8 100644
--- a/linker/linker_config.cpp
+++ b/linker/linker_config.cpp
@@ -304,7 +304,7 @@
     }
 
     if (result == ConfigParser::kPropertyAssign) {
-      if (properties->find(name) != properties->end()) {
+      if (properties->contains(name)) {
         DL_WARN("%s:%zd: warning: redefining property \"%s\" (overriding previous value)",
                 ld_config_file_path,
                 cp.lineno(),
@@ -313,7 +313,7 @@
 
       (*properties)[name] = PropertyValue(std::move(value), cp.lineno());
     } else if (result == ConfigParser::kPropertyAppend) {
-      if (properties->find(name) == properties->end()) {
+      if (!properties->contains(name)) {
         DL_WARN("%s:%zd: warning: appending to undefined property \"%s\" (treating as assignment)",
                 ld_config_file_path,
                 cp.lineno(),
@@ -526,7 +526,7 @@
         properties.get_strings(property_name_prefix + ".links", &lineno);
 
     for (const auto& linked_ns_name : linked_namespaces) {
-      if (namespace_configs.find(linked_ns_name) == namespace_configs.end()) {
+      if (!namespace_configs.contains(linked_ns_name)) {
         *error_msg = create_error_msg(ld_config_file_path,
                                       lineno,
                                       std::string("undefined namespace: ") + linked_ns_name);
diff --git a/linker/linker_crt_pad_segment_test.cpp b/linker/linker_crt_pad_segment_test.cpp
index 5a219f8..c11df50 100644
--- a/linker/linker_crt_pad_segment_test.cpp
+++ b/linker/linker_crt_pad_segment_test.cpp
@@ -72,13 +72,22 @@
 };  // anonymous namespace
 
 TEST(crt_pad_segment, note_absent) {
+  if (!page_size_migration_supported()) {
+    GTEST_SKIP() << "Kernel does not support page size migration";
+  }
   ASSERT_FALSE(GetPadSegment("no_crt_pad_segment.so"));
 }
 
 TEST(crt_pad_segment, note_present_and_enabled) {
+  if (!page_size_migration_supported()) {
+    GTEST_SKIP() << "Kernel does not support page size migration";
+  }
   ASSERT_TRUE(GetPadSegment("crt_pad_segment_enabled.so"));
 }
 
 TEST(crt_pad_segment, note_present_and_disabled) {
+  if (!page_size_migration_supported()) {
+    GTEST_SKIP() << "Kernel does not support page size migration";
+  }
   ASSERT_FALSE(GetPadSegment("crt_pad_segment_disabled.so"));
 }
diff --git a/linker/linker_debug.cpp b/linker/linker_debug.cpp
index b0aae79..e6211f7 100644
--- a/linker/linker_debug.cpp
+++ b/linker/linker_debug.cpp
@@ -30,13 +30,14 @@
 
 #include <unistd.h>
 
-void linker_log_va_list(int prio __unused, const char* fmt, va_list ap) {
-#if LINKER_DEBUG_TO_LOG
-  async_safe_format_log_va_list(5 - prio, "linker", fmt, ap);
-#else
-  async_safe_format_fd_va_list(STDOUT_FILENO, fmt, ap);
-  write(STDOUT_FILENO, "\n", 1);
-#endif
+void linker_log_va_list(int prio, const char* fmt, va_list ap) {
+  va_list ap2;
+  va_copy(ap2, ap);
+  async_safe_format_log_va_list(5 - prio, "linker", fmt, ap2);
+  va_end(ap2);
+
+  async_safe_format_fd_va_list(STDERR_FILENO, fmt, ap);
+  write(STDERR_FILENO, "\n", 1);
 }
 
 void linker_log(int prio, const char* fmt, ...) {
diff --git a/linker/linker_debug.h b/linker/linker_debug.h
index 477b009..3aab185 100644
--- a/linker/linker_debug.h
+++ b/linker/linker_debug.h
@@ -33,11 +33,6 @@
 // INFO, TRACE, and DEBUG calls in the source). This will only
 // affect new processes being launched.
 
-// By default, traces are sent to logcat, with the "linker" tag. You can
-// change this to go to stdout instead by setting the definition of
-// LINKER_DEBUG_TO_LOG to 0.
-#define LINKER_DEBUG_TO_LOG  1
-
 #define TRACE_DEBUG          1
 #define DO_TRACE_LOOKUP      1
 #define DO_TRACE_RELO        1
diff --git a/linker/linker_main.cpp b/linker/linker_main.cpp
index d6592af..cdc4b86 100644
--- a/linker/linker_main.cpp
+++ b/linker/linker_main.cpp
@@ -29,7 +29,9 @@
 #include "linker_main.h"
 
 #include <link.h>
+#include <stdlib.h>
 #include <sys/auxv.h>
+#include <sys/prctl.h>
 
 #include "linker.h"
 #include "linker_auxv.h"
@@ -71,6 +73,25 @@
 void __libc_init_mte(const memtag_dynamic_entries_t* memtag_dynamic_entries, const void* phdr_start,
                      size_t phdr_count, uintptr_t load_bias, void* stack_top);
 
+__printflike(1, 2) static void __linker_error(const char* fmt, ...) {
+  va_list ap;
+
+  va_start(ap, fmt);
+  async_safe_format_fd_va_list(STDERR_FILENO, fmt, ap);
+  write(STDERR_FILENO, "\n", 1);
+  va_end(ap);
+
+  va_start(ap, fmt);
+  async_safe_format_log_va_list(ANDROID_LOG_FATAL, "linker", fmt, ap);
+  va_end(ap);
+
+  _exit(EXIT_FAILURE);
+}
+
+static void __linker_cannot_link(const char* argv0) {
+  __linker_error("CANNOT LINK EXECUTABLE \"%s\": %s", argv0, linker_get_error_buffer());
+}
+
 // These should be preserved static to avoid emitting
 // RELATIVE relocations for the part of the code running
 // before linker links itself.
@@ -165,22 +186,21 @@
     return;
   }
 
-  soinfo* si = soinfo_alloc(&g_default_namespace, "[vdso]", nullptr, 0, 0);
+  vdso = soinfo_alloc(&g_default_namespace, "[vdso]", nullptr, 0, 0);
 
-  si->phdr = reinterpret_cast<ElfW(Phdr)*>(reinterpret_cast<char*>(ehdr_vdso) + ehdr_vdso->e_phoff);
-  si->phnum = ehdr_vdso->e_phnum;
-  si->base = reinterpret_cast<ElfW(Addr)>(ehdr_vdso);
-  si->size = phdr_table_get_load_size(si->phdr, si->phnum);
-  si->load_bias = get_elf_exec_load_bias(ehdr_vdso);
+  vdso->phdr = reinterpret_cast<ElfW(Phdr)*>(reinterpret_cast<char*>(ehdr_vdso) + ehdr_vdso->e_phoff);
+  vdso->phnum = ehdr_vdso->e_phnum;
+  vdso->base = reinterpret_cast<ElfW(Addr)>(ehdr_vdso);
+  vdso->size = phdr_table_get_load_size(vdso->phdr, vdso->phnum);
+  vdso->load_bias = get_elf_exec_load_bias(ehdr_vdso);
 
-  si->prelink_image();
-  si->link_image(SymbolLookupList(si), si, nullptr, nullptr);
-  // prevents accidental unloads...
-  si->set_dt_flags_1(si->get_dt_flags_1() | DF_1_NODELETE);
-  si->set_linked();
-  si->call_constructors();
+  if (!vdso->prelink_image() || !vdso->link_image(SymbolLookupList(vdso), vdso, nullptr, nullptr)) {
+    __linker_cannot_link(g_argv[0]);
+  }
 
-  vdso = si;
+  // Prevent accidental unloads...
+  vdso->set_dt_flags_1(vdso->get_dt_flags_1() | DF_1_NODELETE);
+  vdso->set_linked();
 }
 
 // Initializes an soinfo's link_map_head field using other fields from the
@@ -201,6 +221,7 @@
   const ElfW(Phdr)* phdr;
   size_t phdr_count;
   ElfW(Addr) entry_point;
+  bool should_pad_segments;
 };
 
 static ExecutableInfo get_executable_info(const char* arg_path) {
@@ -219,14 +240,10 @@
     exe_path = arg_path;
   }
 
-  // Path might be a symlink
+  // Path might be a symlink; we need the target so that we get the right
+  // linker configuration later.
   char sym_path[PATH_MAX];
-  ssize_t sym_path_len = readlink(exe_path, sym_path, sizeof(sym_path));
-  if (sym_path_len > 0 && sym_path_len < static_cast<ssize_t>(sizeof(sym_path))) {
-    result.path = std::string(sym_path, sym_path_len);
-  } else {
-    result.path = std::string(exe_path, strlen(exe_path));
-  }
+  result.path = std::string(realpath(exe_path, sym_path) != nullptr ? sym_path : exe_path);
 
   result.phdr = reinterpret_cast<const ElfW(Phdr)*>(getauxval(AT_PHDR));
   result.phdr_count = getauxval(AT_PHNUM);
@@ -240,27 +257,6 @@
 static char kFallbackLinkerPath[] = "/system/bin/linker";
 #endif
 
-__printflike(1, 2)
-static void __linker_error(const char* fmt, ...) {
-  va_list ap;
-
-  va_start(ap, fmt);
-  async_safe_format_fd_va_list(STDERR_FILENO, fmt, ap);
-  va_end(ap);
-
-  va_start(ap, fmt);
-  async_safe_format_log_va_list(ANDROID_LOG_FATAL, "linker", fmt, ap);
-  va_end(ap);
-
-  _exit(EXIT_FAILURE);
-}
-
-static void __linker_cannot_link(const char* argv0) {
-  __linker_error("CANNOT LINK EXECUTABLE \"%s\": %s\n",
-                 argv0,
-                 linker_get_error_buffer());
-}
-
 // Load an executable. Normally the kernel has already loaded the executable when the linker
 // starts. The linker can be invoked directly on an executable, though, and then the linker must
 // load it. This function doesn't load dependencies or resolve relocations.
@@ -268,31 +264,32 @@
   ExecutableInfo result = {};
 
   if (orig_path[0] != '/') {
-    __linker_error("error: expected absolute path: \"%s\"\n", orig_path);
+    __linker_error("error: expected absolute path: \"%s\"", orig_path);
   }
 
   off64_t file_offset;
   android::base::unique_fd fd(open_executable(orig_path, &file_offset, &result.path));
   if (fd.get() == -1) {
-    __linker_error("error: unable to open file \"%s\"\n", orig_path);
+    __linker_error("error: unable to open file \"%s\"", orig_path);
   }
 
   if (TEMP_FAILURE_RETRY(fstat(fd.get(), &result.file_stat)) == -1) {
-    __linker_error("error: unable to stat \"%s\": %s\n", result.path.c_str(), strerror(errno));
+    __linker_error("error: unable to stat \"%s\": %m", result.path.c_str());
   }
 
   ElfReader elf_reader;
   if (!elf_reader.Read(result.path.c_str(), fd.get(), file_offset, result.file_stat.st_size)) {
-    __linker_error("error: %s\n", linker_get_error_buffer());
+    __linker_error("error: %s", linker_get_error_buffer());
   }
   address_space_params address_space;
   if (!elf_reader.Load(&address_space)) {
-    __linker_error("error: %s\n", linker_get_error_buffer());
+    __linker_error("error: %s", linker_get_error_buffer());
   }
 
   result.phdr = elf_reader.loaded_phdr();
   result.phdr_count = elf_reader.phdr_count();
   result.entry_point = elf_reader.entry_point();
+  result.should_pad_segments = elf_reader.should_pad_segments();
   return result;
 }
 
@@ -333,11 +330,7 @@
 
   if (getenv("LD_SHOW_AUXV") != nullptr) ld_show_auxv(args.auxv);
 
-#if defined(__LP64__)
-  INFO("[ Android dynamic linker (64-bit) ]");
-#else
-  INFO("[ Android dynamic linker (32-bit) ]");
-#endif
+  INFO("[ Android dynamic linker (" ABI_STRING ") ]");
 
   // These should have been sanitized by __libc_init_AT_SECURE, but the test
   // doesn't cost us anything.
@@ -366,6 +359,7 @@
   somain = si;
   si->phdr = exe_info.phdr;
   si->phnum = exe_info.phdr_count;
+  si->set_should_pad_segments(exe_info.should_pad_segments);
   get_elf_base_from_phdr(si->phdr, si->phnum, &si->base, &si->load_bias);
   si->size = phdr_table_get_load_size(si->phdr, si->phnum);
   si->dynamic = nullptr;
@@ -399,9 +393,8 @@
     auto note_gnu_property = GnuPropertySection(somain);
     if (note_gnu_property.IsBTICompatible() &&
         (phdr_table_protect_segments(somain->phdr, somain->phnum, somain->load_bias,
-                                     &note_gnu_property) < 0)) {
-      __linker_error("error: can't protect segments for \"%s\": %s", exe_info.path.c_str(),
-                     strerror(errno));
+                                     somain->should_pad_segments(), &note_gnu_property) < 0)) {
+      __linker_error("error: can't protect segments for \"%s\": %m", exe_info.path.c_str());
     }
   }
 #endif
@@ -422,20 +415,11 @@
 
   ElfW(Ehdr)* elf_hdr = reinterpret_cast<ElfW(Ehdr)*>(si->base);
 
-  // We haven't supported non-PIE since Lollipop for security reasons.
+  // For security reasons we dropped non-PIE support in API level 21,
+  // and the NDK no longer supports earlier API levels.
   if (elf_hdr->e_type != ET_DYN) {
-    // We don't use async_safe_fatal here because we don't want a tombstone:
-    // even after several years we still find ourselves on app compatibility
-    // investigations because some app's trying to launch an executable that
-    // hasn't worked in at least three years, and we've "helpfully" dropped a
-    // tombstone for them. The tombstone never provided any detail relevant to
-    // fixing the problem anyway, and the utility of drawing extra attention
-    // to the problem is non-existent at this late date.
-    async_safe_format_fd(STDERR_FILENO,
-                         "\"%s\": error: Android 5.0 and later only support "
-                         "position-independent executables (-fPIE).\n",
-                         g_argv[0]);
-    _exit(EXIT_FAILURE);
+    __linker_error("error: %s: Android only supports position-independent "
+                   "executables (-fPIE)", exe_info.path.c_str());
   }
 
   // Use LD_LIBRARY_PATH and LD_PRELOAD (but only if we aren't setuid/setgid).
@@ -493,6 +477,12 @@
     }
     si->increment_ref_count();
   }
+
+  // Exit early for ldd. We don't want to run the code that was loaded, so skip
+  // the constructor calls. Skip CFI setup because it would call __cfi_init in
+  // libdl.so.
+  if (g_is_ldd) _exit(EXIT_SUCCESS);
+
 #if defined(__aarch64__)
   // This has to happen after the find_libraries, which will have collected any possible
   // libraries that request memtag_stack in the dynamic section.
@@ -626,9 +616,10 @@
   }
 }
 
-static void call_ifunc_resolvers() {
-  // Find the IRELATIVE relocations using the DT_JMPREL and DT_PLTRELSZ, or DT_RELA? and DT_RELA?SZ
-  // dynamic tags.
+static void relocate_linker() {
+  // The linker should only have relative relocations (in RELR) and IRELATIVE
+  // relocations. Find the IRELATIVE relocations using the DT_JMPREL and
+  // DT_PLTRELSZ, or DT_RELA/DT_RELASZ (DT_REL/DT_RELSZ on ILP32).
   auto ehdr = reinterpret_cast<ElfW(Addr)>(&__ehdr_start);
   auto* phdr = reinterpret_cast<ElfW(Phdr)*>(ehdr + __ehdr_start.e_phoff);
   for (size_t i = 0; i != __ehdr_start.e_phnum; ++i) {
@@ -636,18 +627,33 @@
       continue;
     }
     auto *dyn = reinterpret_cast<ElfW(Dyn)*>(ehdr + phdr[i].p_vaddr);
-    ElfW(Addr) pltrel = 0, pltrelsz = 0, rel = 0, relsz = 0;
+    ElfW(Addr) relr = 0, relrsz = 0, pltrel = 0, pltrelsz = 0, rel = 0, relsz = 0;
     for (size_t j = 0, size = phdr[i].p_filesz / sizeof(ElfW(Dyn)); j != size; ++j) {
-      if (dyn[j].d_tag == DT_JMPREL) {
-        pltrel = dyn[j].d_un.d_ptr;
-      } else if (dyn[j].d_tag == DT_PLTRELSZ) {
-        pltrelsz = dyn[j].d_un.d_ptr;
-      } else if (dyn[j].d_tag == kRelTag) {
-        rel = dyn[j].d_un.d_ptr;
-      } else if (dyn[j].d_tag == kRelSzTag) {
-        relsz = dyn[j].d_un.d_ptr;
+      const auto tag = dyn[j].d_tag;
+      const auto val = dyn[j].d_un.d_ptr;
+      // We don't currently handle IRELATIVE relocations in DT_ANDROID_REL[A].
+      // We disabled DT_ANDROID_REL[A] at build time; verify that it was actually disabled.
+      CHECK(tag != DT_ANDROID_REL && tag != DT_ANDROID_RELA);
+      if (tag == DT_RELR || tag == DT_ANDROID_RELR) {
+        relr = val;
+      } else if (tag == DT_RELRSZ || tag == DT_ANDROID_RELRSZ) {
+        relrsz = val;
+      } else if (tag == DT_JMPREL) {
+        pltrel = val;
+      } else if (tag == DT_PLTRELSZ) {
+        pltrelsz = val;
+      } else if (tag == kRelTag) {
+        rel = val;
+      } else if (tag == kRelSzTag) {
+        relsz = val;
       }
     }
+    // Apply RELR relocations first so that the GOT is initialized for ifunc
+    // resolvers.
+    if (relr && relrsz) {
+      relocate_relr(reinterpret_cast<ElfW(Relr*)>(ehdr + relr),
+                    reinterpret_cast<ElfW(Relr*)>(ehdr + relr + relrsz), ehdr);
+    }
     if (pltrel && pltrelsz) {
       call_ifunc_resolvers_for_section(reinterpret_cast<RelType*>(ehdr + pltrel),
                                        reinterpret_cast<RelType*>(ehdr + pltrel + pltrelsz));
@@ -681,7 +687,7 @@
   // fallback.
   __libc_sysinfo = reinterpret_cast<void*>(__libc_int0x80);
 #endif
-  __linker_error("error: linker cannot load itself\n");
+  __linker_error("error: linker cannot load itself");
 }
 
 static ElfW(Addr) __attribute__((noinline))
@@ -725,8 +731,12 @@
   ElfW(Ehdr)* elf_hdr = reinterpret_cast<ElfW(Ehdr)*>(linker_addr);
   ElfW(Phdr)* phdr = reinterpret_cast<ElfW(Phdr)*>(linker_addr + elf_hdr->e_phoff);
 
-  // string.h functions must not be used prior to calling the linker's ifunc resolvers.
-  call_ifunc_resolvers();
+  // Relocate the linker. This step will initialize the GOT, which is needed for
+  // accessing non-hidden global variables. (On some targets, the stack
+  // protector uses GOT accesses rather than TLS.) Relocating the linker will
+  // also call the linker's ifunc resolvers so that string.h functions can be
+  // used.
+  relocate_linker();
 
   soinfo tmp_linker_so(nullptr, nullptr, nullptr, 0, 0);
 
@@ -738,7 +748,6 @@
   tmp_linker_so.phnum = elf_hdr->e_phnum;
   tmp_linker_so.set_linker_flag();
 
-  // Prelink the linker so we can access linker globals.
   if (!tmp_linker_so.prelink_image()) __linker_cannot_link(args.argv[0]);
   if (!tmp_linker_so.link_image(SymbolLookupList(&tmp_linker_so), &tmp_linker_so, nullptr, nullptr)) __linker_cannot_link(args.argv[0]);
 
@@ -826,8 +835,6 @@
 
   ElfW(Addr) start_address = linker_main(args, exe_to_load);
 
-  if (g_is_ldd) _exit(EXIT_SUCCESS);
-
   INFO("[ Jumping to _start (%p)... ]", reinterpret_cast<void*>(start_address));
 
   // Return the address that the calling assembly stub should jump to.
diff --git a/linker/linker_namespaces.cpp b/linker/linker_namespaces.cpp
index 5182129..eb9dae9 100644
--- a/linker/linker_namespaces.cpp
+++ b/linker/linker_namespaces.cpp
@@ -100,7 +100,7 @@
     // be searched.
     if (allow_secondary) {
       const android_namespace_list_t& secondary_namespaces = si->get_secondary_namespaces();
-      if (secondary_namespaces.find(this) != secondary_namespaces.end()) {
+      if (secondary_namespaces.contains(this)) {
         return true;
       }
     }
diff --git a/linker/linker_phdr.cpp b/linker/linker_phdr.cpp
index 82b37a4..b9229ca 100644
--- a/linker/linker_phdr.cpp
+++ b/linker/linker_phdr.cpp
@@ -46,6 +46,8 @@
 #include "private/CFIShadow.h" // For kLibraryAlignment
 #include "private/elf_note.h"
 
+#include <android-base/file.h>
+
 static int GetTargetElfMachine() {
 #if defined(__arm__)
   return EM_ARM;
@@ -196,7 +198,7 @@
     // For Armv8.5-A loaded executable segments may require PROT_BTI.
     if (note_gnu_property_.IsBTICompatible()) {
       did_load_ = (phdr_table_protect_segments(phdr_table_, phdr_num_, load_bias_,
-                                               &note_gnu_property_) == 0);
+                                               should_pad_segments_, &note_gnu_property_) == 0);
     }
 #endif
   }
@@ -296,7 +298,6 @@
   }
 
   if (header_.e_shentsize != sizeof(ElfW(Shdr))) {
-    // Fail if app is targeting Android O or above
     if (get_application_target_sdk_version() >= 26) {
       DL_ERR_AND_LOG("\"%s\" has unsupported e_shentsize: 0x%x (expected 0x%zx)",
                      name_.c_str(), header_.e_shentsize, sizeof(ElfW(Shdr)));
@@ -310,12 +311,10 @@
   }
 
   if (header_.e_shstrndx == 0) {
-    // Fail if app is targeting Android O or above
     if (get_application_target_sdk_version() >= 26) {
       DL_ERR_AND_LOG("\"%s\" has invalid e_shstrndx", name_.c_str());
       return false;
     }
-
     DL_WARN_documented_change(26,
                               "invalid-elf-header_section-headers-enforced-for-api-level-26",
                               "\"%s\" has invalid e_shstrndx", name_.c_str());
@@ -707,8 +706,28 @@
   return true;
 }
 
+/*
+ * Returns true if the kernel supports page size migration, else false.
+ */
+bool page_size_migration_supported() {
+  static bool pgsize_migration_enabled = []() {
+    std::string enabled;
+    if (!android::base::ReadFileToString("/sys/kernel/mm/pgsize_migration/enabled", &enabled)) {
+      return false;
+    }
+    return enabled.find("1") != std::string::npos;
+  }();
+  return pgsize_migration_enabled;
+}
+
 // Find the ELF note of type NT_ANDROID_TYPE_PAD_SEGMENT and check that the desc value is 1.
 bool ElfReader::ReadPadSegmentNote() {
+  if (!page_size_migration_supported()) {
+    // Don't attempt to read the note, since segment extension isn't
+    // supported; but return true so that loading can continue normally.
+    return true;
+  }
+
   // The ELF can have multiple PT_NOTE's, check them all
   for (size_t i = 0; i < phdr_num_; ++i) {
     const ElfW(Phdr)* phdr = &phdr_table_[i];
@@ -724,6 +743,16 @@
       continue;
     }
 
+    // If the PT_NOTE extends beyond the file. The ELF is doing something
+    // strange -- obfuscation, embedding hidden loaders, ...
+    //
+    // It doesn't contain the pad_segment note. Skip it to avoid SIGBUS
+    // by accesses beyond the file.
+    off64_t note_end_off = file_offset_ + phdr->p_offset + phdr->p_filesz;
+    if (note_end_off > file_size_) {
+      continue;
+    }
+
     // note_fragment is scoped to within the loop so that there is
     // at most 1 PT_NOTE mapped at anytime during this search.
     MappedFileFragment note_fragment;
@@ -756,6 +785,50 @@
   return true;
 }
 
+static inline void _extend_load_segment_vma(const ElfW(Phdr)* phdr_table, size_t phdr_count,
+                                             size_t phdr_idx, ElfW(Addr)* p_memsz,
+                                             ElfW(Addr)* p_filesz, bool should_pad_segments) {
+  const ElfW(Phdr)* phdr = &phdr_table[phdr_idx];
+  const ElfW(Phdr)* next = nullptr;
+  size_t next_idx = phdr_idx + 1;
+
+  // Don't do segment extension for p_align > 64KiB, such ELFs already existed in the
+  // field e.g. 2MiB p_align for THPs and are relatively small in number.
+  //
+  // The kernel can only represent padding for p_align up to 64KiB. This is because
+  // the kernel uses 4 available bits in the vm_area_struct to represent padding
+  // extent; and so cannot enable mitigations to avoid breaking app compatibility for
+  // p_aligns > 64KiB.
+  //
+  // Don't perform segment extension on these to avoid app compatibility issues.
+  if (phdr->p_align <= kPageSize || phdr->p_align > 64*1024 || !should_pad_segments) {
+    return;
+  }
+
+  if (next_idx < phdr_count && phdr_table[next_idx].p_type == PT_LOAD) {
+    next = &phdr_table[next_idx];
+  }
+
+  // If this is the last LOAD segment, no extension is needed
+  if (!next || *p_memsz != *p_filesz) {
+    return;
+  }
+
+  ElfW(Addr) next_start = page_start(next->p_vaddr);
+  ElfW(Addr) curr_end = page_end(phdr->p_vaddr + *p_memsz);
+
+  // If adjacent segment mappings overlap, no extension is needed.
+  if (curr_end >= next_start) {
+    return;
+  }
+
+  // Extend the LOAD segment mapping to be contiguous with that of
+  // the next LOAD segment.
+  ElfW(Addr) extend = next_start - curr_end;
+  *p_memsz += extend;
+  *p_filesz += extend;
+}
+
 bool ElfReader::LoadSegments() {
   for (size_t i = 0; i < phdr_num_; ++i) {
     const ElfW(Phdr)* phdr = &phdr_table_[i];
@@ -764,18 +837,22 @@
       continue;
     }
 
+    ElfW(Addr) p_memsz = phdr->p_memsz;
+    ElfW(Addr) p_filesz = phdr->p_filesz;
+    _extend_load_segment_vma(phdr_table_, phdr_num_, i, &p_memsz, &p_filesz, should_pad_segments_);
+
     // Segment addresses in memory.
     ElfW(Addr) seg_start = phdr->p_vaddr + load_bias_;
-    ElfW(Addr) seg_end   = seg_start + phdr->p_memsz;
+    ElfW(Addr) seg_end = seg_start + p_memsz;
 
     ElfW(Addr) seg_page_start = page_start(seg_start);
     ElfW(Addr) seg_page_end = page_end(seg_end);
 
-    ElfW(Addr) seg_file_end   = seg_start + phdr->p_filesz;
+    ElfW(Addr) seg_file_end = seg_start + p_filesz;
 
     // File offsets.
     ElfW(Addr) file_start = phdr->p_offset;
-    ElfW(Addr) file_end   = file_start + phdr->p_filesz;
+    ElfW(Addr) file_end = file_start + p_filesz;
 
     ElfW(Addr) file_page_start = page_start(file_start);
     ElfW(Addr) file_length = file_end - file_page_start;
@@ -785,12 +862,12 @@
       return false;
     }
 
-    if (file_end > static_cast<size_t>(file_size_)) {
+    if (file_start + phdr->p_filesz > static_cast<size_t>(file_size_)) {
       DL_ERR("invalid ELF file \"%s\" load segment[%zd]:"
           " p_offset (%p) + p_filesz (%p) ( = %p) past end of file (0x%" PRIx64 ")",
           name_.c_str(), i, reinterpret_cast<void*>(phdr->p_offset),
           reinterpret_cast<void*>(phdr->p_filesz),
-          reinterpret_cast<void*>(file_end), file_size_);
+          reinterpret_cast<void*>(file_start + phdr->p_filesz), file_size_);
       return false;
     }
 
@@ -830,8 +907,36 @@
 
     // if the segment is writable, and does not end on a page boundary,
     // zero-fill it until the page limit.
-    if ((phdr->p_flags & PF_W) != 0 && page_offset(seg_file_end) > 0) {
-      memset(reinterpret_cast<void*>(seg_file_end), 0, page_size() - page_offset(seg_file_end));
+    //
+    // Do not attempt to zero the extended region past the first partial page,
+    // since doing so may:
+    //   1) Result in a SIGBUS, as the region is not backed by the underlying
+    //      file.
+    //   2) Break the COW backing, faulting in new anon pages for a region
+    //      that will not be used.
+
+    uint64_t unextended_seg_file_end = seg_start + phdr->p_filesz;
+    if ((phdr->p_flags & PF_W) != 0 && page_offset(unextended_seg_file_end) > 0) {
+      memset(reinterpret_cast<void*>(unextended_seg_file_end), 0,
+             kPageSize - page_offset(unextended_seg_file_end));
+    }
+
+    // Pages may be brought in due to readahead.
+    // Drop the padding (zero) pages, to avoid reclaim work later.
+    //
+    // NOTE: The madvise() here is special, as it also serves to hint to the
+    // kernel the portion of the LOAD segment that is padding.
+    //
+    // See: [1] https://android-review.googlesource.com/c/kernel/common/+/3032411
+    //      [2] https://android-review.googlesource.com/c/kernel/common/+/3048835
+    uint64_t pad_start = page_end(unextended_seg_file_end);
+    uint64_t pad_end = page_end(seg_file_end);
+    CHECK(pad_start <= pad_end);
+    uint64_t pad_len = pad_end - pad_start;
+    if (page_size_migration_supported() && pad_len > 0 &&
+        madvise(reinterpret_cast<void*>(pad_start), pad_len, MADV_DONTNEED)) {
+      DL_WARN("\"%s\": madvise(0x%" PRIx64 ", 0x%" PRIx64 ", MADV_DONTNEED) failed: %m",
+              name_.c_str(), pad_start, pad_len);
     }
 
     seg_file_end = page_end(seg_file_end);
@@ -864,17 +969,21 @@
  * phdr_table_protect_segments and phdr_table_unprotect_segments.
  */
 static int _phdr_table_set_load_prot(const ElfW(Phdr)* phdr_table, size_t phdr_count,
-                                     ElfW(Addr) load_bias, int extra_prot_flags) {
-  const ElfW(Phdr)* phdr = phdr_table;
-  const ElfW(Phdr)* phdr_limit = phdr + phdr_count;
+                                     ElfW(Addr) load_bias, int extra_prot_flags,
+                                     bool should_pad_segments) {
+  for (size_t i = 0; i < phdr_count; ++i) {
+    const ElfW(Phdr)* phdr = &phdr_table[i];
 
-  for (; phdr < phdr_limit; phdr++) {
     if (phdr->p_type != PT_LOAD || (phdr->p_flags & PF_W) != 0) {
       continue;
     }
 
-    ElfW(Addr) seg_page_start = page_start(phdr->p_vaddr) + load_bias;
-    ElfW(Addr) seg_page_end = page_end(phdr->p_vaddr + phdr->p_memsz) + load_bias;
+    ElfW(Addr) p_memsz = phdr->p_memsz;
+    ElfW(Addr) p_filesz = phdr->p_filesz;
+    _extend_load_segment_vma(phdr_table, phdr_count, i, &p_memsz, &p_filesz, should_pad_segments);
+
+    ElfW(Addr) seg_page_start = page_start(phdr->p_vaddr + load_bias);
+    ElfW(Addr) seg_page_end = page_end(phdr->p_vaddr + p_memsz + load_bias);
 
     int prot = PFLAGS_TO_PROT(phdr->p_flags) | extra_prot_flags;
     if ((prot & PROT_WRITE) != 0) {
@@ -909,19 +1018,21 @@
  *   phdr_table  -> program header table
  *   phdr_count  -> number of entries in tables
  *   load_bias   -> load bias
+ *   should_pad_segments -> Are segments extended to avoid gaps in the memory map
  *   prop        -> GnuPropertySection or nullptr
  * Return:
  *   0 on success, -1 on failure (error code in errno).
  */
 int phdr_table_protect_segments(const ElfW(Phdr)* phdr_table, size_t phdr_count,
-                                ElfW(Addr) load_bias, const GnuPropertySection* prop __unused) {
+                                ElfW(Addr) load_bias, bool should_pad_segments,
+                                const GnuPropertySection* prop __unused) {
   int prot = 0;
 #if defined(__aarch64__)
   if ((prop != nullptr) && prop->IsBTICompatible()) {
     prot |= PROT_BTI;
   }
 #endif
-  return _phdr_table_set_load_prot(phdr_table, phdr_count, load_bias, prot);
+  return _phdr_table_set_load_prot(phdr_table, phdr_count, load_bias, prot, should_pad_segments);
 }
 
 /* Change the protection of all loaded segments in memory to writable.
@@ -937,19 +1048,82 @@
  *   phdr_table  -> program header table
  *   phdr_count  -> number of entries in tables
  *   load_bias   -> load bias
+ *   should_pad_segments -> Are segments extended to avoid gaps in the memory map
  * Return:
  *   0 on success, -1 on failure (error code in errno).
  */
 int phdr_table_unprotect_segments(const ElfW(Phdr)* phdr_table,
-                                  size_t phdr_count, ElfW(Addr) load_bias) {
-  return _phdr_table_set_load_prot(phdr_table, phdr_count, load_bias, PROT_WRITE);
+                                  size_t phdr_count, ElfW(Addr) load_bias,
+                                  bool should_pad_segments) {
+  return _phdr_table_set_load_prot(phdr_table, phdr_count, load_bias, PROT_WRITE,
+                                   should_pad_segments);
+}
+
+static inline void _extend_gnu_relro_prot_end(const ElfW(Phdr)* relro_phdr,
+                                              const ElfW(Phdr)* phdr_table, size_t phdr_count,
+                                              ElfW(Addr) load_bias, ElfW(Addr)* seg_page_end,
+                                              bool should_pad_segments) {
+  // Find the index and phdr of the LOAD containing the GNU_RELRO segment
+  for (size_t index = 0; index < phdr_count; ++index) {
+    const ElfW(Phdr)* phdr = &phdr_table[index];
+
+    if (phdr->p_type == PT_LOAD && phdr->p_vaddr == relro_phdr->p_vaddr) {
+      // If the PT_GNU_RELRO mem size is not at least as large as the corresponding
+      // LOAD segment mem size, we need to protect only a partial region of the
+      // LOAD segment and therefore cannot avoid a VMA split.
+      //
+      // Note: Don't check the page-aligned mem sizes since the extended protection
+      // may incorrectly write protect non-relocation data.
+      //
+      // Example:
+      //
+      //               |---- 3K ----|-- 1K --|---- 3K ---- |-- 1K --|
+      //       ----------------------------------------------------------------
+      //               |            |        |             |        |
+      //        SEG X  |     RO     |   RO   |     RW      |        |   SEG Y
+      //               |            |        |             |        |
+      //       ----------------------------------------------------------------
+      //                            |        |             |
+      //                            |        |             |
+      //                            |        |             |
+      //                    relro_vaddr   relro_vaddr   relro_vaddr
+      //                    (load_vaddr)       +            +
+      //                                  relro_memsz   load_memsz
+      //
+      //       ----------------------------------------------------------------
+      //               |         PAGE        |         PAGE         |
+      //       ----------------------------------------------------------------
+      //                                     |       Potential      |
+      //                                     |----- Extended RO ----|
+      //                                     |      Protection      |
+      //
+      // If the check below uses  page aligned mem sizes it will cause incorrect write
+      // protection of the 3K RW part of the LOAD segment containing the GNU_RELRO.
+      if (relro_phdr->p_memsz < phdr->p_memsz) {
+        return;
+      }
+
+      ElfW(Addr) p_memsz = phdr->p_memsz;
+      ElfW(Addr) p_filesz = phdr->p_filesz;
+
+      // Attempt extending the VMA (mprotect range). Without extending the range,
+      // mprotect will only RO protect a part of the extended RW LOAD segment, which
+      // will leave an extra split RW VMA (the gap).
+      _extend_load_segment_vma(phdr_table, phdr_count, index, &p_memsz, &p_filesz,
+                               should_pad_segments);
+
+      *seg_page_end = page_end(phdr->p_vaddr + p_memsz + load_bias);
+      return;
+    }
+  }
 }
 
 /* Used internally by phdr_table_protect_gnu_relro and
  * phdr_table_unprotect_gnu_relro.
  */
 static int _phdr_table_set_gnu_relro_prot(const ElfW(Phdr)* phdr_table, size_t phdr_count,
-                                          ElfW(Addr) load_bias, int prot_flags) {
+                                          ElfW(Addr) load_bias, int prot_flags,
+                                          bool should_pad_segments) {
   const ElfW(Phdr)* phdr = phdr_table;
   const ElfW(Phdr)* phdr_limit = phdr + phdr_count;
 
@@ -976,6 +1150,8 @@
     //       that it starts on a page boundary.
     ElfW(Addr) seg_page_start = page_start(phdr->p_vaddr) + load_bias;
     ElfW(Addr) seg_page_end = page_end(phdr->p_vaddr + phdr->p_memsz) + load_bias;
+    _extend_gnu_relro_prot_end(phdr, phdr_table, phdr_count, load_bias, &seg_page_end,
+                               should_pad_segments);
 
     int ret = mprotect(reinterpret_cast<void*>(seg_page_start),
                        seg_page_end - seg_page_start,
@@ -1000,12 +1176,14 @@
  *   phdr_table  -> program header table
  *   phdr_count  -> number of entries in tables
  *   load_bias   -> load bias
+ *   should_pad_segments -> Were segments extended to avoid gaps in the memory map
  * Return:
  *   0 on success, -1 on failure (error code in errno).
  */
-int phdr_table_protect_gnu_relro(const ElfW(Phdr)* phdr_table,
-                                 size_t phdr_count, ElfW(Addr) load_bias) {
-  return _phdr_table_set_gnu_relro_prot(phdr_table, phdr_count, load_bias, PROT_READ);
+int phdr_table_protect_gnu_relro(const ElfW(Phdr)* phdr_table, size_t phdr_count,
+                                 ElfW(Addr) load_bias, bool should_pad_segments) {
+  return _phdr_table_set_gnu_relro_prot(phdr_table, phdr_count, load_bias, PROT_READ,
+                                        should_pad_segments);
 }
 
 /* Serialize the GNU relro segments to the given file descriptor. This can be
@@ -1148,11 +1326,6 @@
 
 
 #if defined(__arm__)
-
-#  ifndef PT_ARM_EXIDX
-#    define PT_ARM_EXIDX    0x70000001      /* .ARM.exidx segment */
-#  endif
-
 /* Return the address and size of the .ARM.exidx section in memory,
  * if present.
  *
diff --git a/linker/linker_phdr.h b/linker/linker_phdr.h
index e5b87bb..aab9018 100644
--- a/linker/linker_phdr.h
+++ b/linker/linker_phdr.h
@@ -43,8 +43,8 @@
  public:
   ElfReader();
 
-  bool Read(const char* name, int fd, off64_t file_offset, off64_t file_size);
-  bool Load(address_space_params* address_space);
+  [[nodiscard]] bool Read(const char* name, int fd, off64_t file_offset, off64_t file_size);
+  [[nodiscard]] bool Load(address_space_params* address_space);
 
   const char* name() const { return name_.c_str(); }
   size_t phdr_count() const { return phdr_num_; }
@@ -61,18 +61,18 @@
   bool should_pad_segments() const { return should_pad_segments_; }
 
  private:
-  bool ReadElfHeader();
-  bool VerifyElfHeader();
-  bool ReadProgramHeaders();
-  bool ReadSectionHeaders();
-  bool ReadDynamicSection();
-  bool ReadPadSegmentNote();
-  bool ReserveAddressSpace(address_space_params* address_space);
-  bool LoadSegments();
-  bool FindPhdr();
-  bool FindGnuPropertySection();
-  bool CheckPhdr(ElfW(Addr));
-  bool CheckFileRange(ElfW(Addr) offset, size_t size, size_t alignment);
+  [[nodiscard]] bool ReadElfHeader();
+  [[nodiscard]] bool VerifyElfHeader();
+  [[nodiscard]] bool ReadProgramHeaders();
+  [[nodiscard]] bool ReadSectionHeaders();
+  [[nodiscard]] bool ReadDynamicSection();
+  [[nodiscard]] bool ReadPadSegmentNote();
+  [[nodiscard]] bool ReserveAddressSpace(address_space_params* address_space);
+  [[nodiscard]] bool LoadSegments();
+  [[nodiscard]] bool FindPhdr();
+  [[nodiscard]] bool FindGnuPropertySection();
+  [[nodiscard]] bool CheckPhdr(ElfW(Addr));
+  [[nodiscard]] bool CheckFileRange(ElfW(Addr) offset, size_t size, size_t alignment);
 
   bool did_read_;
   bool did_load_;
@@ -128,13 +128,14 @@
 size_t phdr_table_get_maximum_alignment(const ElfW(Phdr)* phdr_table, size_t phdr_count);
 
 int phdr_table_protect_segments(const ElfW(Phdr)* phdr_table, size_t phdr_count,
-                                ElfW(Addr) load_bias, const GnuPropertySection* prop = nullptr);
+                                ElfW(Addr) load_bias, bool should_pad_segments,
+                                const GnuPropertySection* prop = nullptr);
 
 int phdr_table_unprotect_segments(const ElfW(Phdr)* phdr_table, size_t phdr_count,
-                                  ElfW(Addr) load_bias);
+                                  ElfW(Addr) load_bias, bool should_pad_segments);
 
 int phdr_table_protect_gnu_relro(const ElfW(Phdr)* phdr_table, size_t phdr_count,
-                                 ElfW(Addr) load_bias);
+                                 ElfW(Addr) load_bias, bool should_pad_segments);
 
 int phdr_table_serialize_gnu_relro(const ElfW(Phdr)* phdr_table, size_t phdr_count,
                                    ElfW(Addr) load_bias, int fd, size_t* file_offset);
@@ -153,3 +154,5 @@
 
 const char* phdr_table_get_interpreter_name(const ElfW(Phdr)* phdr_table, size_t phdr_count,
                                             ElfW(Addr) load_bias);
+
+bool page_size_migration_supported();
diff --git a/linker/linker_relocate.cpp b/linker/linker_relocate.cpp
index 952dade..5f993ba 100644
--- a/linker/linker_relocate.cpp
+++ b/linker/linker_relocate.cpp
@@ -187,7 +187,8 @@
   auto protect_segments = [&]() {
     // Make .text executable.
     if (phdr_table_protect_segments(relocator.si->phdr, relocator.si->phnum,
-                                    relocator.si->load_bias) < 0) {
+                                    relocator.si->load_bias,
+                                    relocator.si->should_pad_segments()) < 0) {
       DL_ERR("can't protect segments for \"%s\": %s",
              relocator.si->get_realpath(), strerror(errno));
       return false;
@@ -197,7 +198,8 @@
   auto unprotect_segments = [&]() {
     // Make .text writable.
     if (phdr_table_unprotect_segments(relocator.si->phdr, relocator.si->phnum,
-                                      relocator.si->load_bias) < 0) {
+                                      relocator.si->load_bias,
+                                      relocator.si->should_pad_segments()) < 0) {
       DL_ERR("can't unprotect loadable segments for \"%s\": %s",
              relocator.si->get_realpath(), strerror(errno));
       return false;
@@ -419,6 +421,7 @@
         } else {
           CHECK(found_in->get_tls() != nullptr); // We rejected a missing TLS segment above.
           module_id = found_in->get_tls()->module_id;
+          CHECK(module_id != kTlsUninitializedModuleId);
         }
         trace_reloc("RELO TLS_DTPMOD %16p <- %zu %s",
                     rel_target, module_id, sym_name);
@@ -435,9 +438,9 @@
       }
       break;
 
-#if defined(__aarch64__)
-    // Bionic currently only implements TLSDESC for arm64. This implementation should work with
-    // other architectures, as long as the resolver functions are implemented.
+#if defined(__aarch64__) || defined(__riscv)
+    // Bionic currently implements TLSDESC for arm64 and riscv64. This implementation should work
+    // with other architectures, as long as the resolver functions are implemented.
     case R_GENERIC_TLSDESC:
       count_relocation_if<IsGeneral>(kRelocRelative);
       {
@@ -479,7 +482,7 @@
         }
       }
       break;
-#endif  // defined(__aarch64__)
+#endif  // defined(__aarch64__) || defined(__riscv)
 
 #if defined(__x86_64__)
     case R_X86_64_32:
@@ -586,6 +589,11 @@
 }
 
 bool soinfo::relocate(const SymbolLookupList& lookup_list) {
+  // For ldd, don't apply relocations because TLS segments are not registered.
+  // We don't care whether ldd diagnoses unresolved symbols.
+  if (g_is_ldd) {
+    return true;
+  }
 
   VersionTracker version_tracker;
 
@@ -601,6 +609,17 @@
   relocator.tlsdesc_args = &tlsdesc_args_;
   relocator.tls_tp_base = __libc_shared_globals()->static_tls_layout.offset_thread_pointer();
 
+  // The linker already applied its RELR relocations in an earlier pass, so
+  // skip the RELR relocations for the linker.
+  if (relr_ != nullptr && !is_linker()) {
+    DEBUG("[ relocating %s relr ]", get_realpath());
+    const ElfW(Relr)* begin = relr_;
+    const ElfW(Relr)* end = relr_ + relr_count_;
+    if (!relocate_relr(begin, end, load_bias)) {
+      return false;
+    }
+  }
+
   if (android_relocs_ != nullptr) {
     // check signature
     if (android_relocs_size_ > 3 &&
@@ -608,7 +627,7 @@
         android_relocs_[1] == 'P' &&
         android_relocs_[2] == 'S' &&
         android_relocs_[3] == '2') {
-      DEBUG("[ android relocating %s ]", get_realpath());
+      DEBUG("[ relocating %s android rel/rela ]", get_realpath());
 
       const uint8_t* packed_relocs = android_relocs_ + 4;
       const size_t packed_relocs_size = android_relocs_size_ - 4;
@@ -622,13 +641,6 @@
     }
   }
 
-  if (relr_ != nullptr) {
-    DEBUG("[ relocating %s relr ]", get_realpath());
-    if (!relocate_relr()) {
-      return false;
-    }
-  }
-
 #if defined(USE_RELA)
   if (rela_ != nullptr) {
     DEBUG("[ relocating %s rela ]", get_realpath());
@@ -660,14 +672,14 @@
 
   // Once the tlsdesc_args_ vector's size is finalized, we can write the addresses of its elements
   // into the TLSDESC relocations.
-#if defined(__aarch64__)
-  // Bionic currently only implements TLSDESC for arm64.
+#if defined(__aarch64__) || defined(__riscv)
+  // Bionic currently only implements TLSDESC for arm64 and riscv64.
   for (const std::pair<TlsDescriptor*, size_t>& pair : relocator.deferred_tlsdesc_relocs) {
     TlsDescriptor* desc = pair.first;
     desc->func = tlsdesc_resolver_dynamic;
     desc->arg = reinterpret_cast<size_t>(&tlsdesc_args_[pair.second]);
   }
-#endif
+#endif // defined(__aarch64__) || defined(__riscv)
 
   return true;
 }
diff --git a/linker/linker_soinfo.cpp b/linker/linker_soinfo.cpp
index 3e7506c..b2170d8 100644
--- a/linker/linker_soinfo.cpp
+++ b/linker/linker_soinfo.cpp
@@ -159,11 +159,6 @@
           break;
         }
       }
-
-      if (IsGeneral) {
-        TRACE_TYPE(LOOKUP, "NOT FOUND %s in %s@%p",
-                   name, lib->si_->get_realpath(), reinterpret_cast<void*>(lib->si_->base));
-      }
     }
 
     // Search the library's hash table chain.
@@ -186,21 +181,11 @@
             memcmp(lib->strtab_ + sym->st_name, name, name_len + 1) == 0 &&
             is_symbol_global_and_defined(lib->si_, sym)) {
           *si_found_in = lib->si_;
-          if (IsGeneral) {
-            TRACE_TYPE(LOOKUP, "FOUND %s in %s (%p) %zd",
-                       name, lib->si_->get_realpath(), reinterpret_cast<void*>(sym->st_value),
-                       static_cast<size_t>(sym->st_size));
-          }
           return sym;
         }
       }
       ++sym_idx;
     } while ((chain_value & 1) == 0);
-
-    if (IsGeneral) {
-      TRACE_TYPE(LOOKUP, "NOT FOUND %s in %s@%p",
-                 name, lib->si_->get_realpath(), reinterpret_cast<void*>(lib->si_->base));
-    }
   }
 }
 
@@ -338,9 +323,6 @@
 
   // test against bloom filter
   if ((1 & (bloom_word >> h1) & (bloom_word >> h2)) == 0) {
-    TRACE_TYPE(LOOKUP, "NOT FOUND %s in %s@%p",
-        symbol_name.get_name(), get_realpath(), reinterpret_cast<void*>(base));
-
     return nullptr;
   }
 
@@ -348,9 +330,6 @@
   uint32_t n = gnu_bucket_[hash % gnu_nbucket_];
 
   if (n == 0) {
-    TRACE_TYPE(LOOKUP, "NOT FOUND %s in %s@%p",
-        symbol_name.get_name(), get_realpath(), reinterpret_cast<void*>(base));
-
     return nullptr;
   }
 
@@ -363,16 +342,10 @@
         check_symbol_version(versym, n, verneed) &&
         strcmp(get_string(s->st_name), symbol_name.get_name()) == 0 &&
         is_symbol_global_and_defined(this, s)) {
-      TRACE_TYPE(LOOKUP, "FOUND %s in %s (%p) %zd",
-          symbol_name.get_name(), get_realpath(), reinterpret_cast<void*>(s->st_value),
-          static_cast<size_t>(s->st_size));
       return symtab_ + n;
     }
   } while ((gnu_chain_[n++] & 1) == 0);
 
-  TRACE_TYPE(LOOKUP, "NOT FOUND %s in %s@%p",
-             symbol_name.get_name(), get_realpath(), reinterpret_cast<void*>(base));
-
   return nullptr;
 }
 
@@ -392,18 +365,10 @@
     if (check_symbol_version(versym, n, verneed) &&
         strcmp(get_string(s->st_name), symbol_name.get_name()) == 0 &&
         is_symbol_global_and_defined(this, s)) {
-      TRACE_TYPE(LOOKUP, "FOUND %s in %s (%p) %zd",
-                 symbol_name.get_name(), get_realpath(),
-                 reinterpret_cast<void*>(s->st_value),
-                 static_cast<size_t>(s->st_size));
       return symtab_ + n;
     }
   }
 
-  TRACE_TYPE(LOOKUP, "NOT FOUND %s in %s@%p %x %zd",
-             symbol_name.get_name(), get_realpath(),
-             reinterpret_cast<void*>(base), hash, hash % nbucket_);
-
   return nullptr;
 }
 
@@ -503,15 +468,13 @@
 }
 
 void soinfo::call_pre_init_constructors() {
-  if (g_is_ldd) return;
-
   // DT_PREINIT_ARRAY functions are called before any other constructors for executables,
   // but ignored in a shared library.
   call_array("DT_PREINIT_ARRAY", preinit_array_, preinit_array_count_, false, get_realpath());
 }
 
 void soinfo::call_constructors() {
-  if (constructors_called || g_is_ldd) {
+  if (constructors_called) {
     return;
   }
 
@@ -889,7 +852,7 @@
     handle_ = handle_ | 1;
   } while (handle_ == reinterpret_cast<uintptr_t>(RTLD_DEFAULT) ||
            handle_ == reinterpret_cast<uintptr_t>(RTLD_NEXT) ||
-           g_soinfo_handles_map.find(handle_) != g_soinfo_handles_map.end());
+           g_soinfo_handles_map.contains(handle_));
 
   g_soinfo_handles_map[handle_] = this;
 }
diff --git a/linker/linker_soinfo.h b/linker/linker_soinfo.h
index a5d31d5..9a13af2 100644
--- a/linker/linker_soinfo.h
+++ b/linker/linker_soinfo.h
@@ -384,8 +384,6 @@
 
  private:
   bool relocate(const SymbolLookupList& lookup_list);
-  bool relocate_relr();
-  void apply_relr_reloc(ElfW(Addr) offset);
 
   // This part of the structure is only available
   // when FLAG_NEW_SOINFO is set in this->flags.
diff --git a/linker/linker_tls.cpp b/linker/linker_tls.cpp
index 97892f4..e90b8cb 100644
--- a/linker/linker_tls.cpp
+++ b/linker/linker_tls.cpp
@@ -31,14 +31,15 @@
 #include <vector>
 
 #include "async_safe/CHECK.h"
+#include "linker_globals.h"
+#include "linker_main.h"
+#include "linker_soinfo.h"
 #include "private/ScopedRWLock.h"
 #include "private/ScopedSignalBlocker.h"
 #include "private/bionic_defs.h"
 #include "private/bionic_elf_tls.h"
 #include "private/bionic_globals.h"
 #include "private/linker_native_bridge.h"
-#include "linker_main.h"
-#include "linker_soinfo.h"
 
 static bool g_static_tls_finished;
 static std::vector<TlsModule> g_tls_modules;
@@ -109,7 +110,11 @@
 void linker_setup_exe_static_tls(const char* progname) {
   soinfo* somain = solist_get_somain();
   StaticTlsLayout& layout = __libc_shared_globals()->static_tls_layout;
-  if (somain->get_tls() == nullptr) {
+
+  // For ldd, don't add the executable's TLS segment to the static TLS layout.
+  // It is likely to trigger the underaligned TLS segment error on arm32/arm64
+  // when the ldd argument is actually a shared object.
+  if (somain->get_tls() == nullptr || g_is_ldd) {
     layout.reserve_exe_segment_and_tcb(nullptr, progname);
   } else {
     register_tls_module(somain, layout.reserve_exe_segment_and_tcb(&somain->get_tls()->segment, progname));
@@ -133,6 +138,11 @@
 }
 
 void register_soinfo_tls(soinfo* si) {
+  // ldd skips registration of the executable's TLS segment above to avoid the
+  // arm32/arm64 underalignment error. For consistency, also skip registration
+  // of TLS segments here, for shared objects.
+  if (g_is_ldd) return;
+
   soinfo_tls* si_tls = si->get_tls();
   if (si_tls == nullptr || si_tls->module_id != kTlsUninitializedModuleId) {
     return;
diff --git a/tests/Android.bp b/tests/Android.bp
index 78c2c10..d2a3110 100644
--- a/tests/Android.bp
+++ b/tests/Android.bp
@@ -361,15 +361,17 @@
 cc_test_library {
     name: "clang_diagnostic_tests",
     cflags: [
-        "-Xclang",
-        "-verify",
+        "-Xclang -verify",
     ],
     srcs: ["sys_ioctl_diag_test.cpp"],
 }
 
 cc_test_library {
     name: "libBionicStandardTests",
-    defaults: ["bionic_tests_defaults"],
+    defaults: [
+        "bionic_tests_defaults",
+        "large_system_property_node_defaults",
+    ],
     tidy_disabled_srcs: [
         "malloc_test.cpp", // timed out with clang-tidy, and too many warnings
     ],
@@ -401,6 +403,7 @@
         "_FILE_OFFSET_BITS_test.cpp",
         "float_test.cpp",
         "fnmatch_test.cpp",
+        "fts_test.cpp",
         "ftw_test.cpp",
         "getauxval_test.cpp",
         "getcwd_test.cpp",
@@ -430,6 +433,7 @@
         "netdb_test.cpp",
         "net_if_test.cpp",
         "netinet_ether_test.cpp",
+        "netinet_igmp_test.cpp",
         "netinet_in_test.cpp",
         "netinet_ip_icmp_test.cpp",
         "netinet_udp_test.cpp",
@@ -474,6 +478,7 @@
         "sys_cachectl_test.cpp",
         "sys_epoll_test.cpp",
         "sys_hwprobe_test.cpp",
+        "sys_io_test.cpp",
         "sys_mman_test.cpp",
         "sys_msg_test.cpp",
         "sys_param_test.cpp",
@@ -578,6 +583,9 @@
     include_dirs: [
         "bionic/libc",
     ],
+    static_libs: [
+        "libbase",
+    ],
     shared: {
         enabled: false,
     },
@@ -785,6 +793,7 @@
     ],
     static_libs: [
         "libbase",
+        "libprocinfo",
     ],
     include_dirs: [
         "bionic/libc",
@@ -833,7 +842,10 @@
     data_bins: [
         "cfi_test_helper",
         "cfi_test_helper2",
+        "elftls_align_test_helper",
         "elftls_dlopen_ie_error_helper",
+        "elftls_dtv_resize_helper",
+        "elftls_skew_align_test_helper",
         "exec_linker_helper",
         "exec_linker_helper_lib",
         "heap_tagging_async_helper",
@@ -936,6 +948,8 @@
         "libtest_elftls_dynamic_filler_1",
         "libtest_elftls_dynamic_filler_2",
         "libtest_elftls_dynamic_filler_3",
+        "libtest_elftls_dynamic_filler_4",
+        "libtest_elftls_dynamic_filler_5",
         "libtest_elftls_shared_var",
         "libtest_elftls_shared_var_ie",
         "libtest_elftls_tprel",
@@ -1127,11 +1141,14 @@
     shared_libs: [
         "libbase",
     ],
-    data_libs: ["libtest_simple_memtag_stack", "libtest_depends_on_simple_memtag_stack"],
+    data_libs: [
+        "libtest_simple_memtag_stack",
+        "libtest_depends_on_simple_memtag_stack",
+    ],
     data_bins: [
         "testbinary_depends_on_simple_memtag_stack",
         "testbinary_depends_on_depends_on_simple_memtag_stack",
-        "testbinary_is_stack_mte_after_dlopen"
+        "testbinary_is_stack_mte_after_dlopen",
     ],
     header_libs: ["bionic_libc_platform_headers"],
     test_suites: ["device-tests"],
@@ -1185,9 +1202,9 @@
         "gtest_globals.cpp",
         "gtest_main.cpp",
 
-        // The Bionic allocator has its own C++ API. It isn't packaged into its
-        // own library, so it can only be tested when it's part of libc.a.
+        // Test internal parts of Bionic that aren't exposed via libc.so.
         "bionic_allocator_test.cpp",
+        "static_tls_layout_test.cpp",
     ],
     include_dirs: [
         "bionic/libc",
@@ -1217,6 +1234,8 @@
         never: true,
     },
     data_bins: [
+        "elftls_align_test_helper",
+        "elftls_skew_align_test_helper",
         "heap_tagging_async_helper",
         "heap_tagging_disabled_helper",
         "heap_tagging_static_async_helper",
@@ -1304,4 +1323,47 @@
     },
 }
 
-subdirs = ["*"]
+cc_defaults {
+    name: "bionic_compile_time_tests_defaults",
+    enabled: false,
+    target: {
+        linux_x86: {
+            enabled: true,
+        },
+        linux_x86_64: {
+            enabled: true,
+        },
+    },
+    tidy: false,
+    clang_verify: true,
+    cflags: [
+        "-Wall",
+        "-Wno-error",
+        "-fno-color-diagnostics",
+        "-ferror-limit=10000",
+        "-DCOMPILATION_TESTS=1",
+        "-Wformat-nonliteral",
+        "-U_FORTIFY_SOURCE",
+    ],
+    srcs: ["clang_fortify_tests.cpp"],
+}
+
+cc_library_static {
+    name: "bionic-compile-time-tests1-clang++",
+    defaults: [
+        "bionic_compile_time_tests_defaults",
+    ],
+    cppflags: [
+        "-D_FORTIFY_SOURCE=1",
+    ],
+}
+
+cc_library_static {
+    name: "bionic-compile-time-tests2-clang++",
+    defaults: [
+        "bionic_compile_time_tests_defaults",
+    ],
+    cppflags: [
+        "-D_FORTIFY_SOURCE=2",
+    ],
+}
diff --git a/tests/Android.mk b/tests/Android.mk
deleted file mode 100644
index 5ad4045..0000000
--- a/tests/Android.mk
+++ /dev/null
@@ -1,33 +0,0 @@
-#
-# Copyright (C) 2012 The Android Open Source Project
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-LOCAL_PATH := $(call my-dir)
-
-ifeq ($(HOST_OS)-$(HOST_ARCH),$(filter $(HOST_OS)-$(HOST_ARCH),linux-x86 linux-x86_64))
-
-# -----------------------------------------------------------------------------
-# Compile time tests.
-# -----------------------------------------------------------------------------
-
-FORTIFY_LEVEL := 1
-include $(LOCAL_PATH)/make_fortify_compile_test.mk
-
-FORTIFY_LEVEL := 2
-include $(LOCAL_PATH)/make_fortify_compile_test.mk
-
-endif # linux-x86
-
-include $(call first-makefiles-under,$(LOCAL_PATH))
diff --git a/tests/__cxa_demangle_test.cpp b/tests/__cxa_demangle_test.cpp
index d400619..e13410c 100644
--- a/tests/__cxa_demangle_test.cpp
+++ b/tests/__cxa_demangle_test.cpp
@@ -28,11 +28,39 @@
 
 #include <cxxabi.h>
 #include <gtest/gtest.h>
+#include <string.h>
 
 TEST(__cxa_demangle, cxa_demangle_fuzz_152588929) {
 #if defined(__aarch64__)
+  // Test the C++ demangler on an invalid mangled string. libc++abi currently
+  // parses it like so:
+  //    (1 "\006") (I (L e "eeEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE" E) E)
+  // There are a few interesting things about this mangled input:
+  //  - The IA64 C++ ABI specifies that an FP literal's hex chars are lowercase.
+  //    The libc++abi demangler currently accepts uppercase A-F digits, which is
+  //    confusing because 'E' is supposed to mark the end of the <expr-primary>.
+  //  - libc++abi uses snprintf("%a") which puts an unspecified number of bits
+  //    in the digit before the decimal point.
+  //  - The identifier name is "\006", and the IA64 C++ ABI spec is explicit
+  //    about not specifying the encoding for characters outside of
+  //    [_A-Za-z0-9].
+  //  - The 'e' type is documented as "long double, __float80", and in practice
+  //    the length of the literal depends on the arch. For arm64, it is a
+  //    128-bit FP type encoded using 32 hex chars. The situation with x86-64
+  //    Android OTOH is messy because Clang uses 'g' for its 128-bit
+  //    long double.
   char* p = abi::__cxa_demangle("1\006ILeeeEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE", 0, 0, 0);
-  ASSERT_STREQ("\x6<-0x1.cecececececececececececececep+11983", p);
+  if (p && !strcmp(p, "\x6<-0x1.cecececececececececececececep+11983")) {
+    // Prior to llvm.org/D77924, libc++abi left off the "L>" suffix.
+  } else if (p && !strcmp(p, "\x6<-0x1.cecececececececececececececep+11983L>")) {
+    // After llvm.org/D77924, the "L>" suffix is present. libc++abi
+    // accepts A-F digits but decodes each using (digit - 'a' + 10), turning 'E'
+    // into -18.
+  } else {
+    // TODO: Remove the other accepted outputs, because libc++abi probably
+    // should reject this input.
+    ASSERT_EQ(nullptr, p) << p;
+  }
   free(p);
 #endif
 }
diff --git a/tests/cfi_test.cpp b/tests/cfi_test.cpp
index 4b061b3..79a9e35 100644
--- a/tests/cfi_test.cpp
+++ b/tests/cfi_test.cpp
@@ -160,8 +160,7 @@
 // cfi_test_helper exports __cfi_check, which triggers CFI initialization at startup.
 TEST(cfi_test, early_init) {
 #if defined(__BIONIC__)
-  std::string helper = GetTestlibRoot() + "/cfi_test_helper";
-  chmod(helper.c_str(), 0755); // TODO: "x" lost in CTS, b/34945607
+  std::string helper = GetTestLibRoot() + "/cfi_test_helper";
   ExecTestHelper eth;
   eth.SetArgs({ helper.c_str(), nullptr });
   eth.Run([&]() { execve(helper.c_str(), eth.GetArgs(), eth.GetEnv()); }, 0, nullptr);
@@ -172,8 +171,7 @@
 // at startup.
 TEST(cfi_test, early_init2) {
 #if defined(__BIONIC__)
-  std::string helper = GetTestlibRoot() + "/cfi_test_helper2";
-  chmod(helper.c_str(), 0755); // TODO: "x" lost in CTS, b/34945607
+  std::string helper = GetTestLibRoot() + "/cfi_test_helper2";
   ExecTestHelper eth;
   eth.SetArgs({ helper.c_str(), nullptr });
   eth.Run([&]() { execve(helper.c_str(), eth.GetArgs(), eth.GetEnv()); }, 0, nullptr);
diff --git a/tests/clang_fortify_tests.cpp b/tests/clang_fortify_tests.cpp
index 544af43..f4ef4ac 100644
--- a/tests/clang_fortify_tests.cpp
+++ b/tests/clang_fortify_tests.cpp
@@ -164,9 +164,7 @@
     const char large_string[] = "Hello!!!";
     static_assert(sizeof(large_string) > sizeof(small_buffer), "");
 
-#if __clang_major__ > 13
-    // expected-error@+3{{will always overflow}}
-#endif
+    // expected-error@+2{{will always overflow}}
     // expected-error@+1{{string bigger than buffer}}
     EXPECT_FORTIFY_DEATH(strcpy(small_buffer, large_string));
     // expected-error@+1{{string bigger than buffer}}
@@ -204,9 +202,7 @@
     static_assert(sizeof(small_string) > sizeof(split.tiny_buffer), "");
 
 #if _FORTIFY_SOURCE > 1
-#if __clang_major__ > 13
-    // expected-error@+4{{will always overflow}}
-#endif
+    // expected-error@+3{{will always overflow}}
     // expected-error@+2{{string bigger than buffer}}
 #endif
     EXPECT_FORTIFY_DEATH_STRUCT(strcpy(split.tiny_buffer, small_string));
diff --git a/tests/complex_test.cpp b/tests/complex_test.cpp
index 6a1831f..8fdb2b2 100644
--- a/tests/complex_test.cpp
+++ b/tests/complex_test.cpp
@@ -32,7 +32,11 @@
 #include <math.h> // For M_PI_2/M_PI_2l.
 
 // Prettify gtest Complex printing.
+// Macro 'complex' defined in complex.h conflicts with iostream.
+#pragma push_macro("complex")
+#undef complex
 #include <iostream>
+#pragma pop_macro("complex")
 namespace testing {
 namespace internal {
 inline void PrintTo(const double _Complex& c, std::ostream* os) {
diff --git a/tests/ctype_test.cpp b/tests/ctype_test.cpp
index 826d39a..18fbfc0 100644
--- a/tests/ctype_test.cpp
+++ b/tests/ctype_test.cpp
@@ -293,40 +293,57 @@
 }
 
 TEST(ctype, toascii) {
-  EXPECT_EQ('a', toascii('a'));
-  EXPECT_EQ('a', toascii(0x80 | 'a'));
+  // POSIX explicitly says that toascii() returns (c & 0x7f),
+  // so there's no EOF-preserving behavior here and we start from 0.
+  for (int i = 0; i < kMax; ++i) {
+    if (i <= 0x7f) {
+      EXPECT_EQ(i, toascii(i));
+    } else {
+      EXPECT_EQ(i & 0x7f, toascii(i));
+    }
+  }
 }
 
 TEST(ctype, tolower) {
   EXPECT_EQ('!', tolower('!'));
   EXPECT_EQ('a', tolower('a'));
   EXPECT_EQ('a', tolower('A'));
+  EXPECT_EQ('z', tolower('z'));
+  EXPECT_EQ('z', tolower('Z'));
 }
 
 TEST(ctype, tolower_l) {
   EXPECT_EQ('!', tolower_l('!', LC_GLOBAL_LOCALE));
   EXPECT_EQ('a', tolower_l('a', LC_GLOBAL_LOCALE));
   EXPECT_EQ('a', tolower_l('A', LC_GLOBAL_LOCALE));
+  EXPECT_EQ('z', tolower_l('z', LC_GLOBAL_LOCALE));
+  EXPECT_EQ('z', tolower_l('Z', LC_GLOBAL_LOCALE));
 }
 
 TEST(ctype, _tolower) {
   // _tolower may mangle characters for which isupper is false.
   EXPECT_EQ('a', _tolower('A'));
+  EXPECT_EQ('z', _tolower('Z'));
 }
 
 TEST(ctype, toupper) {
   EXPECT_EQ('!', toupper('!'));
   EXPECT_EQ('A', toupper('a'));
   EXPECT_EQ('A', toupper('A'));
+  EXPECT_EQ('Z', toupper('z'));
+  EXPECT_EQ('Z', toupper('Z'));
 }
 
 TEST(ctype, toupper_l) {
   EXPECT_EQ('!', toupper_l('!', LC_GLOBAL_LOCALE));
   EXPECT_EQ('A', toupper_l('a', LC_GLOBAL_LOCALE));
   EXPECT_EQ('A', toupper_l('A', LC_GLOBAL_LOCALE));
+  EXPECT_EQ('Z', toupper_l('z', LC_GLOBAL_LOCALE));
+  EXPECT_EQ('Z', toupper_l('Z', LC_GLOBAL_LOCALE));
 }
 
 TEST(ctype, _toupper) {
   // _toupper may mangle characters for which islower is false.
   EXPECT_EQ('A', _toupper('a'));
+  EXPECT_EQ('Z', _toupper('z'));
 }
diff --git a/tests/dirent_test.cpp b/tests/dirent_test.cpp
index 4d21246..cde2d11 100644
--- a/tests/dirent_test.cpp
+++ b/tests/dirent_test.cpp
@@ -33,11 +33,11 @@
 
 static void CheckProcSelf(std::set<std::string>& names) {
   // We have a good idea of what should be in /proc/self.
-  ASSERT_TRUE(names.find(".") != names.end());
-  ASSERT_TRUE(names.find("..") != names.end());
-  ASSERT_TRUE(names.find("cmdline") != names.end());
-  ASSERT_TRUE(names.find("fd") != names.end());
-  ASSERT_TRUE(names.find("stat") != names.end());
+  ASSERT_TRUE(names.contains("."));
+  ASSERT_TRUE(names.contains(".."));
+  ASSERT_TRUE(names.contains("cmdline"));
+  ASSERT_TRUE(names.contains("fd"));
+  ASSERT_TRUE(names.contains("stat"));
 }
 
 template <typename DirEntT>
diff --git a/tests/dl_test.cpp b/tests/dl_test.cpp
index 2f3e905..e986af2 100644
--- a/tests/dl_test.cpp
+++ b/tests/dl_test.cpp
@@ -118,7 +118,7 @@
 TEST(dl, exec_linker_load_file) {
 #if defined(__BIONIC__)
   const char* path_to_linker = PathToLinker();
-  std::string helper = GetTestlibRoot() + "/exec_linker_helper";
+  std::string helper = GetTestLibRoot() + "/exec_linker_helper";
   std::string expected_output =
       "ctor: argc=1 argv[0]=" + helper + "\n" +
       "main: argc=1 argv[0]=" + helper + "\n" +
@@ -134,7 +134,7 @@
 TEST(dl, exec_linker_load_from_zip) {
 #if defined(__BIONIC__)
   const char* path_to_linker = PathToLinker();
-  std::string helper = GetTestlibRoot() +
+  std::string helper = GetTestLibRoot() +
       "/libdlext_test_zip/libdlext_test_zip_zipaligned.zip!/libdir/exec_linker_helper";
   std::string expected_output =
       "ctor: argc=1 argv[0]=" + helper + "\n" +
@@ -161,8 +161,7 @@
 TEST(dl, preinit_system_calls) {
 #if defined(__BIONIC__)
   SKIP_WITH_HWASAN << "hwasan not initialized in preinit_array, b/124007027";
-  std::string helper = GetTestlibRoot() + "/preinit_syscall_test_helper";
-  chmod(helper.c_str(), 0755); // TODO: "x" lost in CTS, b/34945607
+  std::string helper = GetTestLibRoot() + "/preinit_syscall_test_helper";
   ExecTestHelper eth;
   eth.SetArgs({ helper.c_str(), nullptr });
   eth.Run([&]() { execve(helper.c_str(), eth.GetArgs(), eth.GetEnv()); }, 0, nullptr);
@@ -172,8 +171,7 @@
 TEST(dl, preinit_getauxval) {
 #if defined(__BIONIC__)
   SKIP_WITH_HWASAN << "hwasan not initialized in preinit_array, b/124007027";
-  std::string helper = GetTestlibRoot() + "/preinit_getauxval_test_helper";
-  chmod(helper.c_str(), 0755); // TODO: "x" lost in CTS, b/34945607
+  std::string helper = GetTestLibRoot() + "/preinit_getauxval_test_helper";
   ExecTestHelper eth;
   eth.SetArgs({ helper.c_str(), nullptr });
   eth.Run([&]() { execve(helper.c_str(), eth.GetArgs(), eth.GetEnv()); }, 0, nullptr);
@@ -186,8 +184,7 @@
 
 TEST(dl, exec_without_ld_preload) {
 #if defined(__BIONIC__)
-  std::string helper = GetTestlibRoot() + "/ld_preload_test_helper";
-  chmod(helper.c_str(), 0755);
+  std::string helper = GetTestLibRoot() + "/ld_preload_test_helper";
   ExecTestHelper eth;
   eth.SetArgs({ helper.c_str(), nullptr });
   eth.Run([&]() { execve(helper.c_str(), eth.GetArgs(), eth.GetEnv()); }, 0, "12345");
@@ -196,9 +193,8 @@
 
 TEST(dl, exec_with_ld_preload) {
 #if defined(__BIONIC__)
-  std::string helper = GetTestlibRoot() + "/ld_preload_test_helper";
-  std::string env = std::string("LD_PRELOAD=") + GetTestlibRoot() + "/ld_preload_test_helper_lib2.so";
-  chmod(helper.c_str(), 0755);
+  std::string helper = GetTestLibRoot() + "/ld_preload_test_helper";
+  std::string env = std::string("LD_PRELOAD=") + GetTestLibRoot() + "/ld_preload_test_helper_lib2.so";
   ExecTestHelper eth;
   eth.SetArgs({ helper.c_str(), nullptr });
   eth.SetEnv({ env.c_str(), nullptr });
@@ -222,11 +218,10 @@
 // The two libs are in ns2/ subdir.
 TEST(dl, exec_without_ld_config_file) {
 #if defined(__BIONIC__)
-  std::string error_message = "CANNOT LINK EXECUTABLE \"" + GetTestlibRoot() +
+  std::string error_message = "CANNOT LINK EXECUTABLE \"" + GetTestLibRoot() +
                               "/ld_config_test_helper\": library \"ld_config_test_helper_lib1.so\" "
                               "not found: needed by main executable\n";
-  std::string helper = GetTestlibRoot() + "/ld_config_test_helper";
-  chmod(helper.c_str(), 0755);
+  std::string helper = GetTestLibRoot() + "/ld_config_test_helper";
   ExecTestHelper eth;
   eth.SetArgs({ helper.c_str(), nullptr });
   eth.Run([&]() { execve(helper.c_str(), eth.GetArgs(), eth.GetEnv()); }, EXIT_FAILURE, error_message.c_str());
@@ -240,15 +235,15 @@
   android_get_LD_LIBRARY_PATH(default_search_paths, sizeof(default_search_paths));
 
   std::ofstream fout(config_file, std::ios::out);
-  fout << "dir.test = " << GetTestlibRoot() << "/" << std::endl
+  fout << "dir.test = " << GetTestLibRoot() << "/" << std::endl
        << "[test]" << std::endl
        << "additional.namespaces = ns2" << std::endl
-       << "namespace.default.search.paths = " << GetTestlibRoot() << std::endl
+       << "namespace.default.search.paths = " << GetTestLibRoot() << std::endl
        << "namespace.default.links = ns2" << std::endl
        << "namespace.default.link.ns2.shared_libs = "
           "libc.so:libm.so:libdl.so:ld_config_test_helper_lib1.so"
        << std::endl
-       << "namespace.ns2.search.paths = " << default_search_paths << ":" << GetTestlibRoot()
+       << "namespace.ns2.search.paths = " << default_search_paths << ":" << GetTestLibRoot()
        << "/ns2" << std::endl;
   fout.close();
 }
@@ -279,11 +274,10 @@
   if (is_user_build()) {
     GTEST_SKIP() << "LD_CONFIG_FILE is not supported on user build";
   }
-  std::string helper = GetTestlibRoot() + "/ld_config_test_helper";
+  std::string helper = GetTestLibRoot() + "/ld_config_test_helper";
   TemporaryFile config_file;
   create_ld_config_file(config_file.path);
   std::string env = std::string("LD_CONFIG_FILE=") + config_file.path;
-  chmod(helper.c_str(), 0755);
   ExecTestHelper eth;
   eth.SetArgs({ helper.c_str(), nullptr });
   eth.SetEnv({ env.c_str(), nullptr });
@@ -315,12 +309,11 @@
   if (is_user_build()) {
     GTEST_SKIP() << "LD_CONFIG_FILE is not supported on user build";
   }
-  std::string helper = GetTestlibRoot() + "/ld_config_test_helper";
+  std::string helper = GetTestLibRoot() + "/ld_config_test_helper";
   TemporaryFile config_file;
   create_ld_config_file(config_file.path);
   std::string env = std::string("LD_CONFIG_FILE=") + config_file.path;
-  std::string env2 = std::string("LD_PRELOAD=") + GetTestlibRoot() + "/ld_config_test_helper_lib3.so";
-  chmod(helper.c_str(), 0755);
+  std::string env2 = std::string("LD_PRELOAD=") + GetTestLibRoot() + "/ld_config_test_helper_lib3.so";
   ExecTestHelper eth;
   eth.SetArgs({ helper.c_str(), nullptr });
   eth.SetEnv({ env.c_str(), env2.c_str(), nullptr });
@@ -353,14 +346,13 @@
   }
 
   std::string error_message =
-      std::string("CANNOT LINK EXECUTABLE ") + "\"" + GetTestlibRoot() +
+      std::string("CANNOT LINK EXECUTABLE ") + "\"" + GetTestLibRoot() +
       "/ld_config_test_helper\": " +
       "library \"ld_config_test_helper_lib1.so\" not found: needed by main executable\n";
-  std::string helper = GetTestlibRoot() + "/ld_config_test_helper";
+  std::string helper = GetTestLibRoot() + "/ld_config_test_helper";
   TemporaryFile config_file;
   create_ld_config_file(config_file.path);
   std::string env = std::string("LD_CONFIG_FILE=") + config_file.path;
-  chmod(helper.c_str(), 0755);
   ExecTestHelper eth;
   eth.SetArgs({ helper.c_str(), nullptr });
   eth.SetEnv({ env.c_str(), nullptr });
@@ -371,7 +363,7 @@
 static void RelocationsTest(const char* lib, const char* expectation) {
 #if defined(__BIONIC__)
   // Does readelf think the .so file looks right?
-  const std::string path = GetTestlibRoot() + "/" + lib;
+  const std::string path = GetTestLibRoot() + "/" + lib;
   ExecTestHelper eth;
   eth.SetArgs({ "readelf", "-SW", path.c_str(), nullptr });
   eth.Run([&]() { execvpe("readelf", eth.GetArgs(), eth.GetEnv()); }, 0, nullptr);
diff --git a/tests/dlext_test.cpp b/tests/dlext_test.cpp
index d078e50..570da2a 100644
--- a/tests/dlext_test.cpp
+++ b/tests/dlext_test.cpp
@@ -31,6 +31,7 @@
 #include <android-base/test_utils.h>
 
 #include <sys/mman.h>
+#include <sys/stat.h>
 #include <sys/types.h>
 #include <sys/vfs.h>
 #include <sys/wait.h>
@@ -107,7 +108,7 @@
 }
 
 TEST_F(DlExtTest, ExtInfoUseFd) {
-  const std::string lib_path = GetTestlibRoot() + "/libdlext_test_fd/libdlext_test_fd.so";
+  const std::string lib_path = GetTestLibRoot() + "/libdlext_test_fd/libdlext_test_fd.so";
 
   android_dlextinfo extinfo;
   extinfo.flags = ANDROID_DLEXT_USE_LIBRARY_FD;
@@ -125,7 +126,7 @@
 }
 
 TEST_F(DlExtTest, ExtInfoUseFdWithOffset) {
-  const std::string lib_path = GetTestlibRoot() + "/libdlext_test_zip/libdlext_test_zip_zipaligned.zip";
+  const std::string lib_path = GetTestLibRoot() + "/libdlext_test_zip/libdlext_test_zip_zipaligned.zip";
 
   android_dlextinfo extinfo;
   extinfo.flags = ANDROID_DLEXT_USE_LIBRARY_FD | ANDROID_DLEXT_USE_LIBRARY_FD_OFFSET;
@@ -148,7 +149,7 @@
 }
 
 TEST_F(DlExtTest, ExtInfoUseFdWithInvalidOffset) {
-  const std::string lib_path = GetTestlibRoot() + "/libdlext_test_zip/libdlext_test_zip_zipaligned.zip";
+  const std::string lib_path = GetTestLibRoot() + "/libdlext_test_zip/libdlext_test_zip_zipaligned.zip";
 
   android_dlextinfo extinfo;
   extinfo.flags = ANDROID_DLEXT_USE_LIBRARY_FD | ANDROID_DLEXT_USE_LIBRARY_FD_OFFSET;
@@ -258,7 +259,7 @@
 
 TEST(dlfcn, dlopen_from_zip_absolute_path) {
   const std::string lib_zip_path = "/libdlext_test_zip/libdlext_test_zip_zipaligned.zip";
-  const std::string lib_path = GetTestlibRoot() + lib_zip_path;
+  const std::string lib_path = GetTestLibRoot() + lib_zip_path;
 
   void* handle = dlopen((lib_path + "!/libdir/libatest_simple_zip.so").c_str(), RTLD_NOW);
   ASSERT_TRUE(handle != nullptr) << dlerror();
@@ -272,7 +273,7 @@
 
 TEST(dlfcn, dlopen_from_zip_with_dt_runpath) {
   const std::string lib_zip_path = "/libdlext_test_runpath_zip/libdlext_test_runpath_zip_zipaligned.zip";
-  const std::string lib_path = GetTestlibRoot() + lib_zip_path;
+  const std::string lib_path = GetTestLibRoot() + lib_zip_path;
 
   void* handle = dlopen((lib_path + "!/libdir/libtest_dt_runpath_d_zip.so").c_str(), RTLD_NOW);
 
@@ -291,7 +292,7 @@
 
 TEST(dlfcn, dlopen_from_zip_ld_library_path) {
   const std::string lib_zip_path = "/libdlext_test_zip/libdlext_test_zip_zipaligned.zip";
-  const std::string lib_path = GetTestlibRoot() + lib_zip_path + "!/libdir";
+  const std::string lib_path = GetTestLibRoot() + lib_zip_path + "!/libdir";
 
   typedef void (*fn_t)(const char*);
   fn_t android_update_LD_LIBRARY_PATH =
@@ -742,7 +743,7 @@
                " \"(anonymous)\"->\"(default)\": the list of shared libraries is empty.",
                dlerror());
 
-  const std::string lib_public_path = GetTestlibRoot() + "/public_namespace_libs/" + g_public_lib;
+  const std::string lib_public_path = GetTestLibRoot() + "/public_namespace_libs/" + g_public_lib;
   void* handle_public = dlopen(lib_public_path.c_str(), RTLD_NOW);
   ASSERT_TRUE(handle_public != nullptr) << dlerror();
 
@@ -762,7 +763,7 @@
   android_namespace_t* ns1 =
           android_create_namespace("private",
                                    nullptr,
-                                   (GetTestlibRoot() + "/private_namespace_libs").c_str(),
+                                   (GetTestLibRoot() + "/private_namespace_libs").c_str(),
                                    ANDROID_NAMESPACE_TYPE_REGULAR,
                                    nullptr,
                                    nullptr);
@@ -772,7 +773,7 @@
   android_namespace_t* ns2 =
           android_create_namespace("private_isolated",
                                    nullptr,
-                                   (GetTestlibRoot() + "/private_namespace_libs").c_str(),
+                                   (GetTestLibRoot() + "/private_namespace_libs").c_str(),
                                    ANDROID_NAMESPACE_TYPE_ISOLATED,
                                    nullptr,
                                    nullptr);
@@ -916,10 +917,10 @@
 }
 
 TEST(dlext, dlopen_ext_use_o_tmpfile_fd) {
-  const std::string lib_path = GetTestlibRoot() + "/libtest_simple.so";
+  const std::string lib_path = GetTestLibRoot() + "/libtest_simple.so";
 
   int tmpfd = TEMP_FAILURE_RETRY(
-        open(GetTestlibRoot().c_str(), O_TMPFILE | O_CLOEXEC | O_RDWR | O_EXCL, 0));
+        open(GetTestLibRoot().c_str(), O_TMPFILE | O_CLOEXEC | O_RDWR | O_EXCL, 0));
 
   // Ignore kernels without O_TMPFILE flag support
   if (tmpfd == -1 && (errno == EISDIR || errno == EINVAL || errno == EOPNOTSUPP)) {
@@ -931,7 +932,7 @@
   android_namespace_t* ns =
           android_create_namespace("testing-o_tmpfile",
                                    nullptr,
-                                   GetTestlibRoot().c_str(),
+                                   GetTestLibRoot().c_str(),
                                    ANDROID_NAMESPACE_TYPE_ISOLATED,
                                    nullptr,
                                    nullptr);
@@ -960,7 +961,7 @@
 }
 
 TEST(dlext, dlopen_ext_use_memfd) {
-  const std::string lib_path = GetTestlibRoot() + "/libtest_simple.so";
+  const std::string lib_path = GetTestLibRoot() + "/libtest_simple.so";
 
   // create memfd
   int memfd = memfd_create("foobar", MFD_CLOEXEC);
@@ -975,7 +976,7 @@
   android_namespace_t* ns =
           android_create_namespace("testing-memfd",
                                    nullptr,
-                                   GetTestlibRoot().c_str(),
+                                   GetTestLibRoot().c_str(),
                                    ANDROID_NAMESPACE_TYPE_ISOLATED,
                                    nullptr,
                                    nullptr);
@@ -1008,8 +1009,8 @@
   static const char* root_lib = "libnstest_root.so";
   ASSERT_TRUE(android_init_anonymous_namespace(g_core_shared_libs.c_str(), nullptr));
 
-  const std::string ns_search_path = GetTestlibRoot() + "/public_namespace_libs:" +
-                                     GetTestlibRoot() + "/private_namespace_libs";
+  const std::string ns_search_path = GetTestLibRoot() + "/public_namespace_libs:" +
+                                     GetTestLibRoot() + "/private_namespace_libs";
 
   android_namespace_t* ns =
           android_create_namespace("one",
@@ -1046,8 +1047,8 @@
   static const char* root_lib = "libnstest_root.so";
   ASSERT_TRUE(android_init_anonymous_namespace(g_core_shared_libs.c_str(), nullptr));
 
-  const std::string public_ns_search_path =  GetTestlibRoot() + "/public_namespace_libs";
-  const std::string private_ns_search_path = GetTestlibRoot() + "/private_namespace_libs";
+  const std::string public_ns_search_path =  GetTestLibRoot() + "/public_namespace_libs";
+  const std::string private_ns_search_path = GetTestLibRoot() + "/private_namespace_libs";
 
   android_namespace_t* ns_public =
           android_create_namespace("public",
@@ -1097,8 +1098,8 @@
   static const char* root_lib = "libnstest_root.so";
   ASSERT_TRUE(android_init_anonymous_namespace(g_core_shared_libs.c_str(), nullptr));
 
-  const std::string public_ns_search_path =  GetTestlibRoot() + "/public_namespace_libs";
-  const std::string private_ns_search_path = GetTestlibRoot() + "/private_namespace_libs";
+  const std::string public_ns_search_path =  GetTestLibRoot() + "/public_namespace_libs";
+  const std::string private_ns_search_path = GetTestLibRoot() + "/private_namespace_libs";
 
   android_namespace_t* ns_public =
           android_create_namespace("public",
@@ -1146,8 +1147,8 @@
 TEST(dlext, ns_unload_between_namespaces_missing_symbol_direct) {
   ASSERT_TRUE(android_init_anonymous_namespace(g_core_shared_libs.c_str(), nullptr));
 
-  const std::string public_ns_search_path =  GetTestlibRoot() + "/public_namespace_libs";
-  const std::string private_ns_search_path = GetTestlibRoot() + "/private_namespace_libs";
+  const std::string public_ns_search_path =  GetTestLibRoot() + "/public_namespace_libs";
+  const std::string private_ns_search_path = GetTestLibRoot() + "/private_namespace_libs";
 
   android_namespace_t* ns_public =
           android_create_namespace("public",
@@ -1186,8 +1187,8 @@
 TEST(dlext, ns_unload_between_namespaces_missing_symbol_indirect) {
   ASSERT_TRUE(android_init_anonymous_namespace(g_core_shared_libs.c_str(), nullptr));
 
-  const std::string public_ns_search_path =  GetTestlibRoot() + "/public_namespace_libs";
-  const std::string private_ns_search_path = GetTestlibRoot() + "/private_namespace_libs";
+  const std::string public_ns_search_path =  GetTestLibRoot() + "/public_namespace_libs";
+  const std::string private_ns_search_path = GetTestLibRoot() + "/private_namespace_libs";
 
   android_namespace_t* ns_public =
           android_create_namespace("public",
@@ -1227,7 +1228,7 @@
 TEST(dlext, ns_exempt_list_enabled) {
   ASSERT_TRUE(android_init_anonymous_namespace(g_core_shared_libs.c_str(), nullptr));
 
-  const std::string ns_search_path = GetTestlibRoot() + "/private_namespace_libs";
+  const std::string ns_search_path = GetTestLibRoot() + "/private_namespace_libs";
 
   android_namespace_t* ns =
           android_create_namespace("namespace",
@@ -1265,7 +1266,7 @@
 TEST(dlext, ns_exempt_list_disabled_by_default) {
   ASSERT_TRUE(android_init_anonymous_namespace(g_core_shared_libs.c_str(), nullptr));
 
-  const std::string ns_search_path = GetTestlibRoot() + "/private_namespace_libs";
+  const std::string ns_search_path = GetTestLibRoot() + "/private_namespace_libs";
 
   android_namespace_t* ns =
           android_create_namespace("namespace",
@@ -1292,7 +1293,7 @@
   ASSERT_TRUE(android_init_anonymous_namespace(g_core_shared_libs.c_str(), nullptr));
   std::string shared_libs = g_core_shared_libs + ":libthatdoesnotexist.so";
 
-  const std::string ns_search_path =  GetTestlibRoot() + "/public_namespace_libs";
+  const std::string ns_search_path =  GetTestLibRoot() + "/public_namespace_libs";
 
   android_namespace_t* ns1 =
           android_create_namespace("ns1",
@@ -1330,7 +1331,7 @@
   static const char* root_lib = "libnstest_root_not_isolated.so";
   std::string shared_libs = g_core_shared_libs + ":" + g_public_lib;
 
-  const std::string lib_public_path = GetTestlibRoot() + "/public_namespace_libs/" + g_public_lib;
+  const std::string lib_public_path = GetTestLibRoot() + "/public_namespace_libs/" + g_public_lib;
   void* handle_public = dlopen(lib_public_path.c_str(), RTLD_NOW);
   ASSERT_TRUE(handle_public != nullptr) << dlerror();
 
@@ -1341,7 +1342,7 @@
   android_namespace_t* ns_not_isolated =
           android_create_namespace("private",
                                    nullptr,
-                                   (GetTestlibRoot() + "/private_namespace_libs").c_str(),
+                                   (GetTestLibRoot() + "/private_namespace_libs").c_str(),
                                    ANDROID_NAMESPACE_TYPE_REGULAR,
                                    nullptr,
                                    nullptr);
@@ -1351,7 +1352,7 @@
   android_namespace_t* ns_isolated =
           android_create_namespace("private_isolated1",
                                    nullptr,
-                                   (GetTestlibRoot() + "/private_namespace_libs").c_str(),
+                                   (GetTestLibRoot() + "/private_namespace_libs").c_str(),
                                    ANDROID_NAMESPACE_TYPE_ISOLATED,
                                    nullptr,
                                    nullptr);
@@ -1360,10 +1361,10 @@
 
   android_namespace_t* ns_isolated2 =
           android_create_namespace("private_isolated2",
-                                   (GetTestlibRoot() + "/private_namespace_libs").c_str(),
+                                   (GetTestLibRoot() + "/private_namespace_libs").c_str(),
                                    nullptr,
                                    ANDROID_NAMESPACE_TYPE_ISOLATED,
-                                   GetTestlibRoot().c_str(),
+                                   GetTestLibRoot().c_str(),
                                    nullptr);
   ASSERT_TRUE(ns_isolated2 != nullptr) << dlerror();
   ASSERT_TRUE(android_link_namespaces(ns_isolated2, nullptr, shared_libs.c_str())) << dlerror();
@@ -1372,7 +1373,7 @@
   ASSERT_STREQ("dlopen failed: library \"libnstest_root_not_isolated.so\" not found", dlerror());
 
   std::string lib_private_external_path =
-      GetTestlibRoot() + "/private_namespace_libs_external/libnstest_private_external.so";
+      GetTestLibRoot() + "/private_namespace_libs_external/libnstest_private_external.so";
 
   // Load lib_private_external_path to default namespace
   // (it should remain invisible for the isolated namespaces after this)
@@ -1404,7 +1405,7 @@
 
   extinfo.library_namespace = ns_isolated2;
 
-  // this should work because isolation_path for private_isolated2 includes GetTestlibRoot()
+  // this should work because isolation_path for private_isolated2 includes GetTestLibRoot()
   handle2 = android_dlopen_ext(root_lib, RTLD_NOW, &extinfo);
   ASSERT_TRUE(handle2 != nullptr) << dlerror();
   dlclose(handle2);
@@ -1463,7 +1464,7 @@
   extinfo.flags = ANDROID_DLEXT_USE_NAMESPACE;
   extinfo.library_namespace = ns_parent;
 
-  const std::string lib_public_path = GetTestlibRoot() + "/public_namespace_libs/" + g_public_lib;
+  const std::string lib_public_path = GetTestLibRoot() + "/public_namespace_libs/" + g_public_lib;
   void* handle_public = android_dlopen_ext(lib_public_path.c_str(), RTLD_NOW, &extinfo);
   ASSERT_TRUE(handle_public != nullptr) << dlerror();
 
@@ -1474,7 +1475,7 @@
   // preload this library to the parent namespace to check if it
   // is shared later on.
   void* handle_dlopened =
-          android_dlopen_ext((GetTestlibRoot() + "/private_namespace_libs/libnstest_dlopened.so").c_str(), RTLD_NOW, &extinfo);
+          android_dlopen_ext((GetTestLibRoot() + "/private_namespace_libs/libnstest_dlopened.so").c_str(), RTLD_NOW, &extinfo);
   ASSERT_TRUE(handle_dlopened != nullptr) << dlerror();
 
   // create two child namespaces of 'ns_parent'. One with regular, the other
@@ -1482,7 +1483,7 @@
   android_namespace_t* ns_not_isolated =
           android_create_namespace("private",
                                    nullptr,
-                                   (GetTestlibRoot() + "/private_namespace_libs").c_str(),
+                                   (GetTestLibRoot() + "/private_namespace_libs").c_str(),
                                    ANDROID_NAMESPACE_TYPE_REGULAR,
                                    nullptr,
                                    ns_parent);
@@ -1493,7 +1494,7 @@
   android_namespace_t* ns_isolated_shared =
           android_create_namespace("private_isolated_shared",
                                    nullptr,
-                                   (GetTestlibRoot() + "/private_namespace_libs").c_str(),
+                                   (GetTestLibRoot() + "/private_namespace_libs").c_str(),
                                    ANDROID_NAMESPACE_TYPE_ISOLATED | ANDROID_NAMESPACE_TYPE_SHARED,
                                    nullptr,
                                    ns_parent);
@@ -1505,7 +1506,7 @@
   ASSERT_STREQ("dlopen failed: library \"libnstest_root_not_isolated.so\" not found", dlerror());
 
   std::string lib_private_external_path =
-      GetTestlibRoot() + "/private_namespace_libs_external/libnstest_private_external.so";
+      GetTestLibRoot() + "/private_namespace_libs_external/libnstest_private_external.so";
 
   // Load lib_private_external_path to the parent namespace
   // (it should remain invisible for the isolated namespaces after this)
@@ -1591,9 +1592,9 @@
   android_namespace_t* ns_isolated =
           android_create_namespace("private_isolated",
                                    nullptr,
-                                   (GetTestlibRoot() + "/private_namespace_libs").c_str(),
+                                   (GetTestLibRoot() + "/private_namespace_libs").c_str(),
                                    ANDROID_NAMESPACE_TYPE_ISOLATED,
-                                   (GetTestlibRoot() + "/public_namespace_libs").c_str(),
+                                   (GetTestLibRoot() + "/public_namespace_libs").c_str(),
                                    nullptr);
   ASSERT_TRUE(ns_isolated != nullptr) << dlerror();
   ASSERT_TRUE(android_link_namespaces(ns_isolated, nullptr, g_core_shared_libs.c_str())) << dlerror();
@@ -1627,7 +1628,7 @@
   // it has inherited permitted_when_isolated_path
   {
     void* handle = android_dlopen_ext(
-            (GetTestlibRoot() + "/public_namespace_libs/libnstest_public.so").c_str(),
+            (GetTestLibRoot() + "/public_namespace_libs/libnstest_public.so").c_str(),
             RTLD_NOW,
             &extinfo);
 
@@ -1642,7 +1643,7 @@
   // 3. Check that it is still isolated.
   {
     void* handle = android_dlopen_ext(
-            (GetTestlibRoot() + "/libtest_empty.so").c_str(),
+            (GetTestLibRoot() + "/libtest_empty.so").c_str(),
             RTLD_NOW,
             &extinfo);
 
@@ -1658,13 +1659,13 @@
   // preload this library to the default namespace to check if it
   // is shared later on.
   void* handle_dlopened =
-          dlopen((GetTestlibRoot() + "/private_namespace_libs/libnstest_dlopened.so").c_str(), RTLD_NOW);
+          dlopen((GetTestLibRoot() + "/private_namespace_libs/libnstest_dlopened.so").c_str(), RTLD_NOW);
   ASSERT_TRUE(handle_dlopened != nullptr) << dlerror();
 
   android_namespace_t* ns_isolated_shared =
           android_create_namespace("private_isolated_shared",
                                    nullptr,
-                                   (GetTestlibRoot() + "/private_namespace_libs").c_str(),
+                                   (GetTestLibRoot() + "/private_namespace_libs").c_str(),
                                    ANDROID_NAMESPACE_TYPE_ISOLATED | ANDROID_NAMESPACE_TYPE_SHARED,
                                    nullptr,
                                    nullptr);
@@ -1687,7 +1688,7 @@
   ASSERT_TRUE(handle == nullptr)
       << "Error: libnstest_dlopened.so is still accessible in shared namespace";
 
-  handle = android_dlopen_ext((GetTestlibRoot() + "/private_namespace_libs/libnstest_dlopened.so").c_str(),
+  handle = android_dlopen_ext((GetTestLibRoot() + "/private_namespace_libs/libnstest_dlopened.so").c_str(),
                               RTLD_NOW | RTLD_NOLOAD, &extinfo);
   ASSERT_TRUE(handle == nullptr)
       << "Error: libnstest_dlopened.so is still accessible in shared namespace";
@@ -1696,14 +1697,14 @@
   ASSERT_TRUE(handle == nullptr)
       << "Error: libnstest_dlopened.so is still accessible in default namespace";
 
-  handle = dlopen((GetTestlibRoot() + "/private_namespace_libs/libnstest_dlopened.so").c_str(),
+  handle = dlopen((GetTestLibRoot() + "/private_namespace_libs/libnstest_dlopened.so").c_str(),
                   RTLD_NOW | RTLD_NOLOAD);
   ASSERT_TRUE(handle == nullptr)
       << "Error: libnstest_dlopened.so is still accessible in default namespace";
 
   // Now lets see if the soinfo area gets reused in the wrong way:
   // load a library to default namespace.
-  const std::string lib_public_path = GetTestlibRoot() + "/public_namespace_libs/" + g_public_lib;
+  const std::string lib_public_path = GetTestLibRoot() + "/public_namespace_libs/" + g_public_lib;
   void* handle_public = dlopen(lib_public_path.c_str(), RTLD_NOW);
   ASSERT_TRUE(handle_public != nullptr) << dlerror();
 
@@ -1717,12 +1718,12 @@
   static const char* root_lib = "libnstest_root.so";
   ASSERT_TRUE(android_init_anonymous_namespace(g_core_shared_libs.c_str(), nullptr));
 
-  const std::string lib_public_path = GetTestlibRoot() + "/public_namespace_libs";
+  const std::string lib_public_path = GetTestLibRoot() + "/public_namespace_libs";
 
   android_namespace_t* ns1 =
           android_create_namespace("isolated1",
                                    nullptr,
-                                   (GetTestlibRoot() + "/private_namespace_libs").c_str(),
+                                   (GetTestLibRoot() + "/private_namespace_libs").c_str(),
                                    ANDROID_NAMESPACE_TYPE_ISOLATED,
                                    lib_public_path.c_str(),
                                    nullptr);
@@ -1732,7 +1733,7 @@
   android_namespace_t* ns2 =
           android_create_namespace("isolated2",
                                    nullptr,
-                                   (GetTestlibRoot() + "/private_namespace_libs").c_str(),
+                                   (GetTestLibRoot() + "/private_namespace_libs").c_str(),
                                    ANDROID_NAMESPACE_TYPE_ISOLATED,
                                    lib_public_path.c_str(),
                                    nullptr);
@@ -1752,7 +1753,7 @@
   android_namespace_t* ns1_child =
           android_create_namespace("isolated1_child",
                                    nullptr,
-                                   (GetTestlibRoot() + "/private_namespace_libs").c_str(),
+                                   (GetTestLibRoot() + "/private_namespace_libs").c_str(),
                                    ANDROID_NAMESPACE_TYPE_ISOLATED,
                                    nullptr,
                                    ns1);
@@ -1802,7 +1803,7 @@
   android_namespace_t* ns_a =
           android_create_namespace("ns_a",
                                    nullptr,
-                                   (GetTestlibRoot() + "/private_namespace_libs").c_str(),
+                                   (GetTestLibRoot() + "/private_namespace_libs").c_str(),
                                    ANDROID_NAMESPACE_TYPE_ISOLATED,
                                    nullptr,
                                    nullptr);
@@ -1812,7 +1813,7 @@
   android_namespace_t* ns_b =
           android_create_namespace("ns_b",
                                    nullptr,
-                                   GetTestlibRoot().c_str(),
+                                   GetTestLibRoot().c_str(),
                                    ANDROID_NAMESPACE_TYPE_ISOLATED,
                                    nullptr,
                                    nullptr);
@@ -1825,7 +1826,7 @@
   extinfo.flags = ANDROID_DLEXT_USE_NAMESPACE;
   extinfo.library_namespace = ns_a;
 
-  std::string library_path = GetTestlibRoot() + "/inaccessible_libs/libtestshared.so";
+  std::string library_path = GetTestLibRoot() + "/inaccessible_libs/libtestshared.so";
 
   void* handle = android_dlopen_ext(library_path.c_str(), RTLD_NOW, &extinfo);
   ASSERT_TRUE(handle == nullptr);
@@ -1846,7 +1847,7 @@
   android_namespace_t* ns =
           android_create_namespace("private",
                                    nullptr,
-                                   (GetTestlibRoot() + "/private_namespace_libs").c_str(),
+                                   (GetTestLibRoot() + "/private_namespace_libs").c_str(),
                                    ANDROID_NAMESPACE_TYPE_REGULAR,
                                    nullptr,
                                    nullptr);
@@ -1887,7 +1888,7 @@
   android_namespace_t* ns_a =
           android_create_namespace("ns_a",
                                    nullptr,
-                                   (GetTestlibRoot() + "/ns_a").c_str(),
+                                   (GetTestLibRoot() + "/ns_a").c_str(),
                                    ANDROID_NAMESPACE_TYPE_ISOLATED,
                                    nullptr,
                                    nullptr);
@@ -1897,7 +1898,7 @@
   android_namespace_t* ns_b =
           android_create_namespace("ns_b",
                                    nullptr,
-                                   (GetTestlibRoot() + "/ns_b").c_str(),
+                                   (GetTestLibRoot() + "/ns_b").c_str(),
                                    ANDROID_NAMESPACE_TYPE_ISOLATED,
                                    nullptr,
                                    nullptr);
@@ -1961,20 +1962,20 @@
   static const char* root_lib = "libnstest_root.so";
   std::string shared_libs = g_core_shared_libs + ":" + g_public_lib;
 
-  const std::string lib_public_path = GetTestlibRoot() + "/public_namespace_libs/" + g_public_lib;
+  const std::string lib_public_path = GetTestLibRoot() + "/public_namespace_libs/" + g_public_lib;
   void* handle_public = dlopen(lib_public_path.c_str(), RTLD_NOW);
 
   ASSERT_TRUE(handle_public != nullptr) << dlerror();
 
   ASSERT_TRUE(
           android_init_anonymous_namespace(shared_libs.c_str(),
-                                           (GetTestlibRoot() + "/private_namespace_libs").c_str())
+                                           (GetTestLibRoot() + "/private_namespace_libs").c_str())
       ) << dlerror();
 
   android_namespace_t* ns =
           android_create_namespace("private",
                                    nullptr,
-                                   (GetTestlibRoot() + "/private_namespace_libs").c_str(),
+                                   (GetTestLibRoot() + "/private_namespace_libs").c_str(),
                                    ANDROID_NAMESPACE_TYPE_REGULAR,
                                    nullptr,
                                    nullptr);
@@ -1982,7 +1983,7 @@
   ASSERT_TRUE(ns != nullptr) << dlerror();
   ASSERT_TRUE(android_link_namespaces(ns, nullptr, shared_libs.c_str())) << dlerror();
 
-  std::string private_library_absolute_path = GetTestlibRoot() + "/private_namespace_libs/" + root_lib;
+  std::string private_library_absolute_path = GetTestLibRoot() + "/private_namespace_libs/" + root_lib;
 
   android_dlextinfo extinfo;
   extinfo.flags = ANDROID_DLEXT_USE_NAMESPACE;
@@ -2046,6 +2047,11 @@
                                                              -1, 0));
   ASSERT_TRUE(reinterpret_cast<void*>(reserved_addr) != MAP_FAILED);
 
+  struct stat file_stat;
+  int ret = TEMP_FAILURE_RETRY(stat(private_library_absolute_path.c_str(), &file_stat));
+  ASSERT_EQ(ret, 0) << "Failed to stat library";
+  size_t file_size = file_stat.st_size;
+
   for (const auto& rec : maps_to_copy) {
     uintptr_t offset = rec.addr_start - addr_start;
     size_t size = rec.addr_end - rec.addr_start;
@@ -2053,7 +2059,11 @@
     void* map = mmap(addr, size, PROT_READ | PROT_WRITE,
                      MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0);
     ASSERT_TRUE(map != MAP_FAILED);
-    memcpy(map, reinterpret_cast<void*>(rec.addr_start), size);
+    // Attempting the below memcpy from a portion of the map that is off the end of
+    // the backing file will cause the kernel to throw a SIGBUS
+    size_t _size = ::android::procinfo::MappedFileSize(rec.addr_start, rec.addr_end,
+                                                       rec.offset, file_size);
+    memcpy(map, reinterpret_cast<void*>(rec.addr_start), _size);
     mprotect(map, size, rec.perms);
   }
 
@@ -2073,13 +2083,12 @@
 TEST(dlext, ns_hidden_child) {
   ExecTestHelper eth;
 
-  std::string helper = GetTestlibRoot() + "/ns_hidden_child_helper";
-  chmod(helper.c_str(), 0755); // TODO: "x" lost in CTS, b/34945607
-  std::string app_ns_dir = GetTestlibRoot() + "/ns_hidden_child_app";
+  std::string helper = GetTestLibRoot() + "/ns_hidden_child_helper";
+  std::string app_ns_dir = GetTestLibRoot() + "/ns_hidden_child_app";
   eth.SetArgs({ helper.c_str(), app_ns_dir.c_str(), nullptr });
 
   // Add the main libns_hidden_child_*.so libraries to the search path of the default namespace.
-  std::string env = "LD_LIBRARY_PATH=" + GetTestlibRoot();
+  std::string env = "LD_LIBRARY_PATH=" + GetTestLibRoot();
   eth.SetEnv({ env.c_str(), nullptr });
 
   eth.Run([&]() { execve(helper.c_str(), eth.GetArgs(), eth.GetEnv()); }, 0,
diff --git a/tests/dlfcn_test.cpp b/tests/dlfcn_test.cpp
index 5b3eaf8..c27adb6 100644
--- a/tests/dlfcn_test.cpp
+++ b/tests/dlfcn_test.cpp
@@ -1301,7 +1301,7 @@
 }
 
 TEST(dlfcn, dt_runpath_absolute_path) {
-  std::string libpath = GetTestlibRoot() + "/libtest_dt_runpath_d.so";
+  std::string libpath = GetTestLibRoot() + "/libtest_dt_runpath_d.so";
   void* handle = dlopen(libpath.c_str(), RTLD_NOW);
   ASSERT_TRUE(handle != nullptr) << dlerror();
 
diff --git a/tests/elftls_dl_test.cpp b/tests/elftls_dl_test.cpp
index e2fa3a0..e409b72 100644
--- a/tests/elftls_dl_test.cpp
+++ b/tests/elftls_dl_test.cpp
@@ -29,10 +29,9 @@
 #include <dlfcn.h>
 #include <link.h>
 
-#include <android-base/file.h>
-#include <android-base/test_utils.h>
 #include <gtest/gtest.h>
 
+#include <string>
 #include <thread>
 
 #include "gtest_globals.h"
@@ -69,9 +68,9 @@
 }
 
 TEST(elftls_dl, dlopen_ie_error) {
-  std::string helper = GetTestlibRoot() + "/elftls_dlopen_ie_error_helper";
-  std::string src_path = GetTestlibRoot() + "/libtest_elftls_shared_var_ie.so";
-  std::string dst_path = GetTestlibRoot() + "/libtest_elftls_shared_var.so";
+  std::string helper = GetTestLibRoot() + "/elftls_dlopen_ie_error_helper";
+  std::string src_path = GetTestLibRoot() + "/libtest_elftls_shared_var_ie.so";
+  std::string dst_path = GetTestLibRoot() + "/libtest_elftls_shared_var.so";
 #if defined(__BIONIC__)
   std::string error =
       "dlerror: dlopen failed: TLS symbol \"elftls_shared_var\" in dlopened \"" + dst_path + "\" " +
@@ -81,7 +80,6 @@
   std::string error = "success\n";
 #endif
 
-  chmod(helper.c_str(), 0755); // TODO: "x" lost in CTS, b/34945607
   ExecTestHelper eth;
   eth.SetArgs({ helper.c_str(), nullptr });
   eth.Run([&]() { execve(helper.c_str(), eth.GetArgs(), eth.GetEnv()); }, 0, error.c_str());
@@ -109,6 +107,22 @@
   void* lib = dlopen("libtest_elftls_dynamic.so", RTLD_LOCAL | RTLD_NOW);
   ASSERT_NE(nullptr, lib);
 
+  auto get_local_var2 = reinterpret_cast<int(*)()>(dlsym(lib, "get_local_var2"));
+  ASSERT_NE(nullptr, get_local_var2);
+
+  auto get_local_var1 = reinterpret_cast<int(*)()>(dlsym(lib, "get_local_var1"));
+  ASSERT_NE(nullptr, get_local_var1);
+
+  auto get_local_var1_addr = reinterpret_cast<int*(*)()>(dlsym(lib, "get_local_var1_addr"));
+  ASSERT_NE(nullptr, get_local_var1_addr);
+
+  // Make sure subsequent accesses return the same pointer.
+  ASSERT_EQ(get_local_var1_addr(), get_local_var1_addr());
+
+  // Check the initial values are correct.
+  ASSERT_EQ(25, get_local_var2());
+  ASSERT_EQ(15, get_local_var1());
+
   auto bump_local_vars = reinterpret_cast<int(*)()>(dlsym(lib, "bump_local_vars"));
   ASSERT_NE(nullptr, bump_local_vars);
 
@@ -137,7 +151,7 @@
 // TLSDESC, the result is NULL. With __tls_get_addr, the result is the
 // generation count (or maybe undefined behavior)? This test only tests TLSDESC.
 TEST(elftls_dl, tlsdesc_missing_weak) {
-#if defined(__aarch64__)
+#if defined(__aarch64__) || defined(__riscv)
   void* lib = dlopen("libtest_elftls_dynamic.so", RTLD_LOCAL | RTLD_NOW);
   ASSERT_NE(nullptr, lib);
 
@@ -155,71 +169,10 @@
 
 TEST(elftls_dl, dtv_resize) {
 #if defined(__BIONIC__)
-#define LOAD_LIB(soname) ({                           \
-    auto lib = dlopen(soname, RTLD_LOCAL | RTLD_NOW); \
-    ASSERT_NE(nullptr, lib);                          \
-    reinterpret_cast<int(*)()>(dlsym(lib, "bump"));   \
-  })
-
-  auto dtv = []() -> TlsDtv* { return __get_tcb_dtv(__get_bionic_tcb()); };
-
-  static_assert(sizeof(TlsDtv) == 3 * sizeof(void*),
-                "This test assumes that the Dtv has a 3-word header");
-
-  // Initially there are 4 modules (5 w/ hwasan):
-  //  - the main test executable
-  //  - libc
-  //  - libtest_elftls_shared_var
-  //  - libtest_elftls_tprel
-  //  - w/ hwasan: libclang_rt.hwasan
-
-  // The initial DTV is an empty DTV with no generation and a size of 0.
-  TlsDtv* zero_dtv = dtv();
-  ASSERT_EQ(0u, zero_dtv->count);
-  ASSERT_EQ(nullptr, zero_dtv->next);
-  ASSERT_EQ(kTlsGenerationNone, zero_dtv->generation);
-
-  // Load module 5 (6 w/ hwasan).
-  auto func1 = LOAD_LIB("libtest_elftls_dynamic_filler_1.so");
-  ASSERT_EQ(101, func1());
-
-  // After loading one module, the DTV should be initialized to the next
-  // power-of-2 size (including the header).
-  TlsDtv* initial_dtv = dtv();
-  ASSERT_EQ(running_with_hwasan() ? 13u : 5u, dtv()->count);
-  ASSERT_EQ(zero_dtv, initial_dtv->next);
-  ASSERT_LT(0u, initial_dtv->generation);
-
-  // Load module 6 (7 w/ hwasan).
-  auto func2 = LOAD_LIB("libtest_elftls_dynamic_filler_2.so");
-  ASSERT_EQ(102, func1());
-
-#if defined(__aarch64__)
-  // The arm64 TLSDESC resolver doesn't update the DTV if it is new enough for
-  // the given access.
-  ASSERT_EQ(running_with_hwasan() ? 13u : 5u, dtv()->count);
-#else
-  // __tls_get_addr updates the DTV anytime the generation counter changes.
-  ASSERT_EQ(13u, dtv()->count);
-#endif
-
-  ASSERT_EQ(201, func2());
-  TlsDtv* new_dtv = dtv();
-  if (!running_with_hwasan()) {
-    ASSERT_NE(initial_dtv, new_dtv);
-    ASSERT_EQ(initial_dtv, new_dtv->next);
-  }
-  ASSERT_EQ(13u, new_dtv->count);
-
-  // Load module 7 (8 w/ hwasan).
-  auto func3 = LOAD_LIB("libtest_elftls_dynamic_filler_3.so");
-  ASSERT_EQ(103, func1());
-  ASSERT_EQ(202, func2());
-  ASSERT_EQ(301, func3());
-
-  ASSERT_EQ(new_dtv, dtv());
-
-#undef LOAD_LIB
+  std::string helper = GetTestLibRoot() + "/elftls_dtv_resize_helper";
+  ExecTestHelper eth;
+  eth.SetArgs({helper.c_str(), nullptr});
+  eth.Run([&]() { execve(helper.c_str(), eth.GetArgs(), eth.GetEnv()); }, 0, nullptr);
 #else
   GTEST_SKIP() << "test doesn't apply to glibc";
 #endif
@@ -334,7 +287,7 @@
   Dl_info info;
   ASSERT_NE(0, dladdr(local_addr, &info));
 
-  std::string libpath = GetTestlibRoot() + "/libtest_elftls_dynamic.so";
+  std::string libpath = GetTestLibRoot() + "/libtest_elftls_dynamic.so";
   char dli_realpath[PATH_MAX];
   ASSERT_TRUE(realpath(info.dli_fname, dli_realpath));
   ASSERT_STREQ(libpath.c_str(), dli_realpath);
diff --git a/tests/elftls_test.cpp b/tests/elftls_test.cpp
index 7c072b6..b3f511e 100644
--- a/tests/elftls_test.cpp
+++ b/tests/elftls_test.cpp
@@ -30,6 +30,9 @@
 
 #include <thread>
 
+#include "gtest_globals.h"
+#include "utils.h"
+
 // Specify the LE access model explicitly. This file is compiled into the
 // bionic-unit-tests executable, but the compiler sees an -fpic object file
 // output into a static library, so it defaults to dynamic TLS accesses.
@@ -87,3 +90,17 @@
     ASSERT_EQ(31, ++tlsvar_general);
   }).join();
 }
+
+TEST(elftls, align_test) {
+  std::string helper = GetTestLibRoot() + "/elftls_align_test_helper";
+  ExecTestHelper eth;
+  eth.SetArgs({helper.c_str(), nullptr});
+  eth.Run([&]() { execve(helper.c_str(), eth.GetArgs(), eth.GetEnv()); }, 0, nullptr);
+}
+
+TEST(elftls, skew_align_test) {
+  std::string helper = GetTestLibRoot() + "/elftls_skew_align_test_helper";
+  ExecTestHelper eth;
+  eth.SetArgs({helper.c_str(), nullptr});
+  eth.Run([&]() { execve(helper.c_str(), eth.GetArgs(), eth.GetEnv()); }, 0, nullptr);
+}
diff --git a/tests/float_test.cpp b/tests/float_test.cpp
index 3ef4593..a2b7ecb 100644
--- a/tests/float_test.cpp
+++ b/tests/float_test.cpp
@@ -122,3 +122,7 @@
 #error LDBL_HAS_SUBNORM
 #endif
 }
+
+TEST(float_h, FLT_EVAL_METHOD_exact) {
+  ASSERT_EQ(0, FLT_EVAL_METHOD);
+}
diff --git a/libc/private/bionic_asm_offsets.h b/tests/fts_test.cpp
similarity index 71%
copy from libc/private/bionic_asm_offsets.h
copy to tests/fts_test.cpp
index e72adda..39e570b 100644
--- a/libc/private/bionic_asm_offsets.h
+++ b/tests/fts_test.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2023 The Android Open Source Project
+ * Copyright (C) 2024 The Android Open Source Project
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -26,8 +26,23 @@
  * SUCH DAMAGE.
  */
 
-#pragma once
+#include <gtest/gtest.h>
 
-#if defined(__aarch64__)
-#define OFFSETOF_libc_globals_memtag_stack 64
+#if !defined(__GLIBC__)
+#include <fts.h>
 #endif
+
+TEST(fts, smoke) {
+#if !defined(__GLIBC__)
+  char* const paths[] = { const_cast<char*>("."), NULL };
+  FTS* fts = fts_open(paths, FTS_PHYSICAL, NULL);
+  ASSERT_TRUE(fts != NULL);
+  FTSENT* e;
+  while ((e = fts_read(fts)) != NULL) {
+    ASSERT_EQ(0, fts_set(fts, e, FTS_SKIP));
+  }
+  ASSERT_EQ(0, fts_close(fts));
+#else
+  GTEST_SKIP() << "no _FILE_OFFSET_BITS=64 <fts.h> in our old glibc";
+#endif
+}
diff --git a/tests/gtest_globals.cpp b/tests/gtest_globals.cpp
index 11b2dff..f146c08 100644
--- a/tests/gtest_globals.cpp
+++ b/tests/gtest_globals.cpp
@@ -23,7 +23,7 @@
 
 #include <string>
 
-std::string GetTestlibRoot() {
+std::string GetTestLibRoot() {
   // Typically the executable is /data/nativetest[64]/bionic-unit-tests/bionic-unit-tests, and the
   // test libraries are in /data/nativetest[64]/bionic-unit-tests/bionic-loader-test-libs.
   std::string path = android::base::GetExecutableDirectory();
diff --git a/tests/gtest_globals.h b/tests/gtest_globals.h
index 1bebb70..3b780a4 100644
--- a/tests/gtest_globals.h
+++ b/tests/gtest_globals.h
@@ -19,10 +19,10 @@
 
 #include <string>
 
-std::string GetTestlibRoot();
+std::string GetTestLibRoot();
 
 inline std::string GetPrebuiltElfDir() {
-  return GetTestlibRoot() + "/prebuilt-elf-files";
+  return GetTestLibRoot() + "/prebuilt-elf-files";
 }
 
 #endif  // _BIONIC_TESTS_GTEST_GLOBALS_H
diff --git a/tests/headers/posix/limits_h.c b/tests/headers/posix/limits_h.c
index 7e92d81..0ca80a5 100644
--- a/tests/headers/posix/limits_h.c
+++ b/tests/headers/posix/limits_h.c
@@ -130,10 +130,10 @@
   MACRO(CHARCLASS_NAME_MAX);
   MACRO(COLL_WEIGHTS_MAX);
   MACRO(EXPR_NEST_MAX);
-  MACRO(LINE_MAX);
   MACRO(NGROUPS_MAX);
   MACRO(RE_DUP_MAX);
 #endif
+  MACRO(LINE_MAX);
 
   MACRO_VALUE(_POSIX_CLOCKRES_MIN, 20000000);
 
diff --git a/tests/heap_tagging_level_test.cpp b/tests/heap_tagging_level_test.cpp
index b88d64a..c0aa176 100644
--- a/tests/heap_tagging_level_test.cpp
+++ b/tests/heap_tagging_level_test.cpp
@@ -247,8 +247,7 @@
   bool isStatic = std::get<1>(GetParam());
   std::string helper_base = std::string("heap_tagging_") + (isStatic ? "static_" : "") +
                             kNoteSuffix[static_cast<int>(note)] + "_helper";
-  std::string helper = GetTestlibRoot() + "/" + helper_base;
-  chmod(helper.c_str(), 0755);
+  std::string helper = GetTestLibRoot() + "/" + helper_base;
   ExecTestHelper eth;
   eth.SetArgs({helper.c_str(), nullptr});
   eth.Run([&]() { execve(helper.c_str(), eth.GetArgs(), eth.GetEnv()); }, 0,
diff --git a/tests/ifaddrs_test.cpp b/tests/ifaddrs_test.cpp
index b3ab94d..da64770 100644
--- a/tests/ifaddrs_test.cpp
+++ b/tests/ifaddrs_test.cpp
@@ -137,7 +137,7 @@
   sockaddr_in* sock = reinterpret_cast<sockaddr_in*>(&ifr.ifr_addr);
   in_addr_t addr = sock->sin_addr.s_addr;
 
-  EXPECT_TRUE(addrs.find(addr) != addrs.end()) << if_name << ' ' << std::hex << ntohl(addr);
+  EXPECT_TRUE(addrs.contains(addr)) << if_name << ' ' << std::hex << ntohl(addr);
 }
 
 TEST(ifaddrs, getifaddrs_INET) {
diff --git a/tests/libs/Android.bp b/tests/libs/Android.bp
index 06ee132..fc7fd40 100644
--- a/tests/libs/Android.bp
+++ b/tests/libs/Android.bp
@@ -123,6 +123,53 @@
     ],
 }
 
+cc_test_library {
+    name: "libtest_elftls_dynamic_filler_4",
+    defaults: ["bionic_testlib_defaults"],
+    srcs: ["elftls_dynamic_filler.cpp"],
+    cflags: [
+        "-DTLS_FILLER=400",
+    ],
+}
+
+cc_test_library {
+    name: "libtest_elftls_dynamic_filler_5",
+    defaults: ["bionic_testlib_defaults"],
+    srcs: ["elftls_dynamic_filler.cpp"],
+    cflags: [
+        "-DTLS_FILLER=500",
+    ],
+}
+
+cc_test {
+    name: "elftls_dtv_resize_helper",
+    defaults: [
+        "bionic_testlib_defaults",
+        "bionic_targets_only",
+    ],
+    srcs: ["elftls_dtv_resize_helper.cpp"],
+    include_dirs: [
+        "bionic/libc",
+    ],
+    static_libs: [
+        "libbase",
+    ],
+}
+
+cc_test {
+    name: "elftls_align_test_helper",
+    defaults: ["bionic_testlib_defaults"],
+    srcs: ["elftls_align_test_helper.cpp"],
+    stl: "none", // avoid including extra TLS variables in the executable
+}
+
+cc_test {
+    name: "elftls_skew_align_test_helper",
+    defaults: ["bionic_testlib_defaults"],
+    srcs: ["elftls_skew_align_test_helper.cpp"],
+    stl: "none", // avoid including extra TLS variables in the executable
+}
+
 // -----------------------------------------------------------------------------
 // Library to test gnu-styled hash
 // -----------------------------------------------------------------------------
diff --git a/tests/libs/CHECK.h b/tests/libs/CHECK.h
index 2575d5b..a590233 100644
--- a/tests/libs/CHECK.h
+++ b/tests/libs/CHECK.h
@@ -20,7 +20,15 @@
 // should probably avoid dependencies other than ones we're specifically
 // trying to test.
 
-#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+static inline void check_failure(const char* file, int line, const char* function,
+                                 const char* failed_expression) {
+  fprintf(stderr, "%s:%d: %s: assertion \"%s\" failed\n", file, line, function, failed_expression);
+  fflush(NULL);
+  abort();
+}
 
 #define CHECK(e) \
-  ((e) ? static_cast<void>(0) : __assert2(__FILE__, __LINE__, __PRETTY_FUNCTION__, #e))
+  ((e) ? static_cast<void>(0) : check_failure(__FILE__, __LINE__, __PRETTY_FUNCTION__, #e))
diff --git a/tests/libs/elftls_align_test_helper.cpp b/tests/libs/elftls_align_test_helper.cpp
new file mode 100644
index 0000000..72e81da
--- /dev/null
+++ b/tests/libs/elftls_align_test_helper.cpp
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <stdint.h>
+
+#include "CHECK.h"
+
+struct AlignedVar {
+  int field;
+  char buffer[0x1000 - sizeof(int)];
+} __attribute__((aligned(0x400)));
+
+struct SmallVar {
+  int field;
+  char buffer[0xeee - sizeof(int)];
+};
+
+// The single .tdata section should have a size that isn't a multiple of its
+// alignment.
+__thread struct AlignedVar var1 = {13};
+__thread struct AlignedVar var2 = {17};
+__thread struct SmallVar var3 = {19};
+
+static uintptr_t var_addr(void* value) {
+  // Maybe the optimizer would assume that the variable has the alignment it is
+  // declared with.
+  asm volatile("" : "+r,m"(value) : : "memory");
+  return reinterpret_cast<uintptr_t>(value);
+}
+
+int main() {
+  CHECK((var_addr(&var1) & 0x3ff) == 0);
+  CHECK((var_addr(&var2) & 0x3ff) == 0);
+  CHECK(var1.field == 13);
+  CHECK(var2.field == 17);
+  CHECK(var3.field == 19);
+  return 0;
+}
diff --git a/tests/libs/elftls_dtv_resize_helper.cpp b/tests/libs/elftls_dtv_resize_helper.cpp
new file mode 100644
index 0000000..7fb6fb5
--- /dev/null
+++ b/tests/libs/elftls_dtv_resize_helper.cpp
@@ -0,0 +1,222 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <dlfcn.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <functional>
+#include <iostream>
+
+#include "bionic/pthread_internal.h"
+
+constexpr bool kDumpModulesForDebugging = false;
+
+// The old external/libcxx doesn't have operator<< for nullptr.
+// TODO(b/175635923): Remove this hack after upgrading libc++.
+template <class T>
+T fix_nullptr(T&& arg) {
+  return arg;
+}
+void* fix_nullptr(nullptr_t arg) {
+  return static_cast<void*>(arg);
+}
+
+template <class Val1, class Val2, class Compare>
+void check(int line, const char* val1_expr, Val1&& val1, const char* val2_expr, Val2&& val2,
+           Compare compare) {
+  if (!compare(val1, val2)) {
+    std::cerr << __FILE__ << ":" << line << ": assertion failed: LHS(" << val1_expr << ") is "
+              << fix_nullptr(val1) << ", RHS(" << val2_expr << ") is " << fix_nullptr(val2) << "\n"
+              << std::flush;
+    abort();
+  }
+}
+
+#define ASSERT_EQ(val1, val2) check(__LINE__, #val1, val1, #val2, val2, std::equal_to())
+#define ASSERT_NE(val1, val2) check(__LINE__, #val1, val1, #val2, val2, std::not_equal_to())
+#define ASSERT_LT(val1, val2) check(__LINE__, #val1, val1, #val2, val2, std::less())
+#define ASSERT_LE(val1, val2) check(__LINE__, #val1, val1, #val2, val2, std::less_equal())
+
+static size_t highest_loaded_modid() {
+  size_t result = 0;
+  auto update_result = [](struct dl_phdr_info* info, size_t size __unused, void* data) {
+    size_t& result = *reinterpret_cast<size_t*>(data);
+    if (kDumpModulesForDebugging) {
+      fprintf(stderr, "module %s: TLS modid %zu\n", info->dlpi_name, info->dlpi_tls_modid);
+    }
+    result = std::max(result, info->dlpi_tls_modid);
+    return 0;
+  };
+  dl_iterate_phdr(update_result, &result);
+  return result;
+}
+
+static TlsDtv* dtv() {
+  return __get_tcb_dtv(__get_bionic_tcb());
+}
+
+static size_t highest_modid_in_dtv() {
+  TlsDtv* current_dtv = dtv();
+  size_t result = 0;
+  for (size_t i = 0; i < current_dtv->count; ++i) {
+    if (current_dtv->modules[i] != nullptr) {
+      result = __tls_module_idx_to_id(i);
+    }
+  }
+  return result;
+}
+
+// Unused, but ensures that the test executable has a TLS segment. With a
+// new-enough libc++_static.a, the test executable will tend to has a TLS
+// segment to hold the libc++ EH globals pointer.
+__thread int g_tls_var_placeholder = 42;
+
+int main() {
+  // Prevent this TLS variable from being optimized away.
+  ASSERT_EQ(42, g_tls_var_placeholder);
+
+  auto load_lib = [](const char* soname) {
+    void* lib = dlopen(soname, RTLD_LOCAL | RTLD_NOW);
+    ASSERT_NE(nullptr, lib);
+    auto func = reinterpret_cast<int (*)()>(dlsym(lib, "bump"));
+    ASSERT_NE(nullptr, func);
+    return func;
+  };
+
+  static_assert(sizeof(TlsDtv) == 3 * sizeof(void*),
+                "This test assumes that the Dtv has a 3-word header");
+
+  // Initially there are 2-4 modules:
+  //  - 1: test executable
+  //  - 2: libc
+  //  - 3: libc++ (when using a new-enough libc++)
+  //  - 4: libclang_rt.hwasan (when running with HWASan)
+  size_t first_filler_modid = highest_loaded_modid() + 1;
+  ASSERT_LE(2, highest_loaded_modid());
+  ASSERT_LE(highest_loaded_modid(), 4);
+
+  // The initial DTV is an empty DTV with no generation and a size of 0.
+  TlsDtv* zero_dtv = dtv();
+  ASSERT_EQ(0u, zero_dtv->count);
+  ASSERT_EQ(nullptr, zero_dtv->next);
+  ASSERT_EQ(kTlsGenerationNone, zero_dtv->generation);
+
+  // Load a module. The DTV is still empty unless the TLS variable is accessed.
+  auto func1 = load_lib("libtest_elftls_dynamic_filler_1.so");
+  ASSERT_EQ(zero_dtv, dtv());
+  ASSERT_EQ(first_filler_modid, highest_loaded_modid());
+
+  // After accessing a TLS variable, the DTV should be initialized. It should be
+  // 8 words in size, with a 5-entry capacity.
+  ASSERT_EQ(101, func1());
+  TlsDtv* initial_dtv = dtv();
+  ASSERT_EQ(5u, dtv()->count);
+  ASSERT_EQ(zero_dtv, initial_dtv->next);
+  ASSERT_LT(0u, initial_dtv->generation);
+  ASSERT_EQ(first_filler_modid, highest_modid_in_dtv());
+  ASSERT_NE(nullptr, initial_dtv->modules[__tls_module_id_to_idx(first_filler_modid)]);
+
+  size_t current_generation = initial_dtv->generation;
+
+  // Fill the rest of the DTV up. (i.e. Ensure that exactly 5 modules with TLS
+  // segments are loaded.)
+  auto fill_entry = [&](size_t modid, const char* soname, int tls_var_value) {
+    if (highest_modid_in_dtv() == modid - 1) {
+      auto func = load_lib(soname);
+
+      // Loading the module doesn't affect the DTV yet.
+      ASSERT_EQ(initial_dtv, dtv());
+      ASSERT_EQ(modid, highest_loaded_modid());
+      ASSERT_EQ(modid - 1, highest_modid_in_dtv());
+      ASSERT_EQ(current_generation, initial_dtv->generation);
+
+      // Access the TLS variable, which will allocate it in the DTV.
+      ASSERT_EQ(tls_var_value, func());
+
+      // Verify allocation and a bumped generation.
+      ASSERT_EQ(initial_dtv, dtv());
+      ASSERT_EQ(modid, highest_modid_in_dtv());
+      ASSERT_LT(current_generation, initial_dtv->generation);
+      current_generation = initial_dtv->generation;
+    }
+  };
+
+  fill_entry(4u, "libtest_elftls_dynamic_filler_2.so", 201);
+  fill_entry(5u, "libtest_elftls_dynamic_filler_3.so", 301);
+  ASSERT_EQ(5u, highest_modid_in_dtv());
+
+  // Load module 6, which will require doubling the size of the DTV.
+  auto func4 = load_lib("libtest_elftls_dynamic_filler_4.so");
+  ASSERT_EQ(6u, highest_loaded_modid());
+  ASSERT_EQ(5u, highest_modid_in_dtv());
+  ASSERT_EQ(initial_dtv, dtv());
+
+  // Access a TLS variable from the first filler module.
+  ASSERT_EQ(102, func1());
+  ASSERT_EQ(5u, highest_modid_in_dtv());
+#if defined(__aarch64__) || defined(__riscv)
+  // The arm64 and riscv64 TLSDESC resolver doesn't update the DTV if it is new enough for
+  // the given access.
+  ASSERT_EQ(initial_dtv, dtv());
+  ASSERT_EQ(5u, dtv()->count);
+  ASSERT_EQ(current_generation, dtv()->generation);
+#else
+  // __tls_get_addr updates the DTV anytime the generation counter changes, but
+  // the highest modid in the DTV is still 5, because module 6 hasn't been
+  // allocated yet.
+  ASSERT_NE(initial_dtv, dtv());
+  ASSERT_EQ(13u, dtv()->count);
+  ASSERT_LT(current_generation, dtv()->generation);
+#endif
+
+  // Accessing the TLS variable in the latest module will always expand the DTV.
+  ASSERT_EQ(401, func4());
+  TlsDtv* new_dtv = dtv();
+  ASSERT_NE(initial_dtv, new_dtv);
+  ASSERT_EQ(initial_dtv, new_dtv->next);
+  ASSERT_EQ(13u, new_dtv->count);
+  ASSERT_LT(current_generation, new_dtv->generation);
+  ASSERT_EQ(6u, highest_modid_in_dtv());
+  current_generation = new_dtv->generation;
+
+  // Load one more filler, module 7.
+  auto func5 = load_lib("libtest_elftls_dynamic_filler_5.so");
+  ASSERT_EQ(103, func1());
+  ASSERT_EQ(402, func4());
+  ASSERT_EQ(6u, highest_modid_in_dtv());
+  ASSERT_EQ(501, func5());
+  ASSERT_EQ(7u, highest_modid_in_dtv());
+
+  // Verify that no new DTV has been allocated.
+  ASSERT_EQ(new_dtv, dtv());
+  ASSERT_EQ(13u, new_dtv->count);
+  ASSERT_LT(current_generation, new_dtv->generation);
+
+  return 0;
+}
diff --git a/tests/libs/elftls_dynamic.cpp b/tests/libs/elftls_dynamic.cpp
index 2500484..df3ad75 100644
--- a/tests/libs/elftls_dynamic.cpp
+++ b/tests/libs/elftls_dynamic.cpp
@@ -66,6 +66,18 @@
   return ++local_var_1 + ++local_var_2;
 }
 
+extern "C" int get_local_var1() {
+  return local_var_1;
+}
+
+extern "C" int* get_local_var1_addr() {
+  return &local_var_1;
+}
+
+extern "C" int get_local_var2() {
+  return local_var_2;
+}
+
 __attribute__((weak)) extern "C" __thread int missing_weak_dyn_tls;
 
 extern "C" int* missing_weak_dyn_tls_addr() {
diff --git a/tests/libs/elftls_skew_align_test_helper.cpp b/tests/libs/elftls_skew_align_test_helper.cpp
new file mode 100644
index 0000000..f7f082d
--- /dev/null
+++ b/tests/libs/elftls_skew_align_test_helper.cpp
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+// LLD tries not to generate a PT_TLS segment where (p_vaddr % p_align) is
+// non-zero. It can still do so if the p_align values are greater than a page.
+
+#include <stdint.h>
+#include <unistd.h>
+
+#include "CHECK.h"
+
+struct SmallVar {
+  int field;
+  char buffer[0x100 - sizeof(int)];
+};
+
+struct AlignedVar {
+  int field;
+  char buffer[0x20000 - sizeof(int)];
+} __attribute__((aligned(0x20000)));
+
+__thread struct SmallVar var1 = {13};
+__thread struct SmallVar var2 = {17};
+__thread struct AlignedVar var3;
+__thread struct AlignedVar var4;
+
+static uintptr_t var_addr(void* value) {
+  // Maybe the optimizer would assume that the variable has the alignment it is
+  // declared with.
+  asm volatile("" : "+r,m"(value) : : "memory");
+  return reinterpret_cast<uintptr_t>(value);
+}
+
+int main() {
+  // Bionic only allocates ELF TLS blocks with up to page alignment.
+  CHECK((var_addr(&var3) & (getpagesize() - 1)) == 0);
+  CHECK((var_addr(&var4) & (getpagesize() - 1)) == 0);
+
+  // TODO: These TLS accesses are broken with the current version of LLD. See
+  // https://github.com/llvm/llvm-project/issues/84743.
+#if !defined(__riscv)
+  CHECK(var1.field == 13);
+  CHECK(var2.field == 17);
+#endif
+
+  CHECK(var3.field == 0);
+  CHECK(var4.field == 0);
+  return 0;
+}
diff --git a/tests/libs/testbinary_is_stack_mte.cpp b/tests/libs/testbinary_is_stack_mte.cpp
index d8074d5..0cdc466 100644
--- a/tests/libs/testbinary_is_stack_mte.cpp
+++ b/tests/libs/testbinary_is_stack_mte.cpp
@@ -36,7 +36,9 @@
 #if defined(__BIONIC__) && defined(__aarch64__)
 
 extern "C" int main(int, char**) {
-  int ret = is_stack_mte_on() ? 0 : 1;
+  void* mte_tls_ptr = mte_tls();
+  *reinterpret_cast<uintptr_t*>(mte_tls_ptr) = 1;
+  int ret = is_stack_mte_on() && mte_tls_ptr != nullptr ? 0 : 1;
   printf("RAN\n");
   return ret;
 }
diff --git a/tests/libs/testbinary_is_stack_mte_after_dlopen.cpp b/tests/libs/testbinary_is_stack_mte_after_dlopen.cpp
index 937ac4c..35af8f4 100644
--- a/tests/libs/testbinary_is_stack_mte_after_dlopen.cpp
+++ b/tests/libs/testbinary_is_stack_mte_after_dlopen.cpp
@@ -96,6 +96,7 @@
   State state = kInit;
 
   bool is_early_thread_mte_on = false;
+  void* early_thread_mte_tls = nullptr;
   std::thread early_th([&] {
     {
       std::lock_guard lk(m);
@@ -107,6 +108,8 @@
       cv.wait(lk, [&] { return state == kStackRemapped; });
     }
     is_early_thread_mte_on = is_stack_mte_on();
+    early_thread_mte_tls = mte_tls();
+    *reinterpret_cast<uintptr_t*>(early_thread_mte_tls) = 1;
   });
   {
     std::unique_lock lk(m);
@@ -120,6 +123,7 @@
   cv.notify_one();
   CHECK(handle != nullptr);
   CHECK(is_stack_mte_on());
+  CHECK(mte_tls() != nullptr);
 
   bool new_stack_page_mte_on = false;
   uintptr_t low;
@@ -129,11 +133,18 @@
   CHECK(new_stack_page_mte_on);
 
   bool is_late_thread_mte_on = false;
-  std::thread late_th([&] { is_late_thread_mte_on = is_stack_mte_on(); });
+  void* late_thread_mte_tls = nullptr;
+  std::thread late_th([&] {
+    is_late_thread_mte_on = is_stack_mte_on();
+    late_thread_mte_tls = mte_tls();
+    *reinterpret_cast<uintptr_t*>(late_thread_mte_tls) = 1;
+  });
   late_th.join();
   early_th.join();
   CHECK(is_late_thread_mte_on);
   CHECK(is_early_thread_mte_on);
+  CHECK(late_thread_mte_tls != nullptr);
+  CHECK(early_thread_mte_tls != nullptr);
   printf("RAN\n");
   return 0;
 }
diff --git a/tests/limits_test.cpp b/tests/limits_test.cpp
index e5902ad..bc13a3f 100644
--- a/tests/limits_test.cpp
+++ b/tests/limits_test.cpp
@@ -21,6 +21,7 @@
 TEST(limits, macros) {
   ASSERT_EQ(8, CHAR_BIT);
   ASSERT_EQ(8 * static_cast<int>(sizeof(int)), WORD_BIT);
+  ASSERT_EQ(2048, LINE_MAX);
   ASSERT_EQ(20, NZERO);
 #if !defined(MB_LEN_MAX)
 #error MB_LEN_MAX
diff --git a/tests/link_test.cpp b/tests/link_test.cpp
index 127a3d9..ae3a1cd 100644
--- a/tests/link_test.cpp
+++ b/tests/link_test.cpp
@@ -195,7 +195,7 @@
     }
     void AddModule(dl_phdr_info* info, size_t s) {
       ASSERT_EQ(sizeof(dl_phdr_info), s);
-      ASSERT_TRUE(dl_iter_mods.find(info->dlpi_addr) == dl_iter_mods.end());
+      ASSERT_FALSE(dl_iter_mods.contains(info->dlpi_addr));
       ASSERT_TRUE(info->dlpi_name != nullptr);
       dl_iter_mods[info->dlpi_addr] = {
         .name = info->dlpi_name,
diff --git a/tests/make_fortify_compile_test.mk b/tests/make_fortify_compile_test.mk
deleted file mode 100644
index ec0ba45..0000000
--- a/tests/make_fortify_compile_test.mk
+++ /dev/null
@@ -1,24 +0,0 @@
-include $(CLEAR_VARS)
-
-LOCAL_ADDITIONAL_DEPENDENCIES := \
-    $(LOCAL_PATH)/Android.mk \
-    $(LOCAL_PATH)/touch-obj-on-success
-
-LOCAL_CXX := $(LOCAL_PATH)/touch-obj-on-success \
-    $(LLVM_PREBUILTS_PATH)/clang++ \
-
-LOCAL_CLANG := true
-LOCAL_MODULE := bionic-compile-time-tests$(FORTIFY_LEVEL)-clang++
-LOCAL_LICENSE_KINDS := SPDX-license-identifier-Apache-2.0 SPDX-license-identifier-BSD
-LOCAL_LICENSE_CONDITIONS := notice
-LOCAL_NOTICE_FILE := $(LOCAL_PATH)/NOTICE
-LOCAL_TIDY := false
-LOCAL_CPPFLAGS := -Wall -Wno-error
-LOCAL_CPPFLAGS += -fno-color-diagnostics -ferror-limit=10000 -Xclang -verify
-LOCAL_CPPFLAGS += -DCOMPILATION_TESTS=1 -Wformat-nonliteral
-LOCAL_CPPFLAGS += -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=$(FORTIFY_LEVEL)
-LOCAL_SRC_FILES := clang_fortify_tests.cpp
-
-include $(BUILD_STATIC_LIBRARY)
-
-FORTIFY_LEVEL :=
diff --git a/tests/malloc_test.cpp b/tests/malloc_test.cpp
index 2b48d85..a5916d3 100644
--- a/tests/malloc_test.cpp
+++ b/tests/malloc_test.cpp
@@ -678,10 +678,12 @@
 TEST(malloc, mallopt_decay) {
 #if defined(__BIONIC__)
   SKIP_WITH_HWASAN << "hwasan does not implement mallopt";
+  ASSERT_EQ(1, mallopt(M_DECAY_TIME, -1));
   ASSERT_EQ(1, mallopt(M_DECAY_TIME, 1));
   ASSERT_EQ(1, mallopt(M_DECAY_TIME, 0));
   ASSERT_EQ(1, mallopt(M_DECAY_TIME, 1));
   ASSERT_EQ(1, mallopt(M_DECAY_TIME, 0));
+  ASSERT_EQ(1, mallopt(M_DECAY_TIME, -1));
 #else
   GTEST_SKIP() << "bionic-only test";
 #endif
@@ -1410,15 +1412,15 @@
 }
 
 #if defined(__BIONIC__)
-using Action = android_mallopt_gwp_asan_options_t::Action;
+using Mode = android_mallopt_gwp_asan_options_t::Mode;
 TEST(android_mallopt, DISABLED_multiple_enable_gwp_asan) {
   android_mallopt_gwp_asan_options_t options;
   options.program_name = "";  // Don't infer GWP-ASan options from sysprops.
-  options.desire = Action::DONT_TURN_ON_UNLESS_OVERRIDDEN;
+  options.mode = Mode::APP_MANIFEST_NEVER;
   // GWP-ASan should already be enabled. Trying to enable or disable it should
   // always pass.
   ASSERT_TRUE(android_mallopt(M_INITIALIZE_GWP_ASAN, &options, sizeof(options)));
-  options.desire = Action::TURN_ON_WITH_SAMPLING;
+  options.mode = Mode::APP_MANIFEST_DEFAULT;
   ASSERT_TRUE(android_mallopt(M_INITIALIZE_GWP_ASAN, &options, sizeof(options)));
 }
 #endif  // defined(__BIONIC__)
@@ -1490,7 +1492,7 @@
   // release secondary allocations back to the OS) was modified to 0ms/1ms by
   // mallopt_decay. Ensure that we delay for at least a second before releasing
   // pages to the OS in order to avoid implicit zeroing by the kernel.
-  mallopt(M_DECAY_TIME, 1000);
+  mallopt(M_DECAY_TIME, 1);
   TestHeapZeroing(/* num_iterations */ 32, [](int iteration) -> int {
     return 1 << (19 + iteration % 4);
   });
@@ -1764,6 +1766,10 @@
   EXPECT_EQ(1, mallopt(M_DECAY_TIME, 1));
   EXPECT_TRUE(android_mallopt(M_GET_DECAY_TIME_ENABLED, &value, sizeof(value)));
   EXPECT_TRUE(value);
+
+  EXPECT_EQ(1, mallopt(M_DECAY_TIME, -1));
+  EXPECT_TRUE(android_mallopt(M_GET_DECAY_TIME_ENABLED, &value, sizeof(value)));
+  EXPECT_FALSE(value);
 #else
   GTEST_SKIP() << "bionic-only test";
 #endif
diff --git a/tests/math_test.cpp b/tests/math_test.cpp
index 493f3af..273ef97 100644
--- a/tests/math_test.cpp
+++ b/tests/math_test.cpp
@@ -17,36 +17,37 @@
 #define _GNU_SOURCE 1
 #include <math.h>
 
-// This include (and the associated definition of __test_capture_signbit)
-// must be placed before any files that include <cmath> (gtest.h in this case).
+// <math.h> is required to define type-generic macros: fpclassify, signbit,
+// isfinite, isinf, isnan, isnormal, isgreater, isgreaterequal, isless,
+// islessequal, islessgreater, and isunordered.
 //
-// <math.h> is required to define generic macros signbit, isfinite and
-// several other such functions.
+// <cmath> is required to #undef these macros and make equivalent sets of
+// _overloaded_ functions available in namespace std. So the isnan() macro,
+// for example, is replaced by std::isnan(float), std::isnan(double),
+// and std::isnan(long double).
 //
-// <cmath> is required to undef declarations of these macros in the global
-// namespace and make equivalent functions available in namespace std. Our
-// stlport implementation does this only for signbit, isfinite, isinf and
-// isnan.
-//
-// NOTE: We don't write our test using std::signbit because we want to be
-// sure that we're testing the bionic version of signbit. The C++ libraries
-// are free to reimplement signbit or delegate to compiler builtins if they
-// please.
+// We're trying to test the bionic macros rather than whatever libc++'s
+// implementation happens to be, so we #include <math.h> and "capture" the
+// macros in our own _template_ functions in the global namespace before
+// we #include any files that include <cmath>, such as <gtest.h>.
 
-namespace {
-template<typename T> inline int test_capture_signbit(const T in) {
-  return signbit(in);
-}
-template<typename T> inline int test_capture_isfinite(const T in) {
-  return isfinite(in);
-}
-template<typename T> inline int test_capture_isnan(const T in) {
-  return isnan(in);
-}
-template<typename T> inline int test_capture_isinf(const T in) {
-  return isinf(in);
-}
-}
+#define capture_generic_macro(capture_function_name, generic_macro_name) \
+  template <typename T> inline int capture_function_name(const T in) { \
+    return generic_macro_name(in); \
+  }
+
+capture_generic_macro(test_capture_fpclassify, fpclassify)
+capture_generic_macro(test_capture_signbit, signbit)
+capture_generic_macro(test_capture_isfinite, isfinite)
+capture_generic_macro(test_capture_isinf, isinf)
+capture_generic_macro(test_capture_isnan, isnan)
+capture_generic_macro(test_capture_isnormal, isnormal)
+capture_generic_macro(test_capture_isgreater, isgreater)
+capture_generic_macro(test_capture_isgreaterequal, isgreaterequal)
+capture_generic_macro(test_capture_isless, isless)
+capture_generic_macro(test_capture_islessequal, islessequal)
+capture_generic_macro(test_capture_islessgreater, islessgreater)
+capture_generic_macro(test_capture_isunordered, isunordered)
 
 #include "math_data_test.h"
 
@@ -60,6 +61,22 @@
 
 #include <android-base/scopeguard.h>
 
+// Now we've included all the headers we need, we can redefine the generic
+// function-like macros to point to the bionic <math.h> versions we captured
+// earlier.
+#define fpclassify test_capture_fpclassify
+#define signbit test_capture_signbit
+#define isfinite test_capture_isfinite
+#define isinf test_capture_isinf
+#define isnan test_capture_isnan
+#define isnormal test_capture_isnormal
+#define isgreater test_capture_isgreater
+#define isgreaterequal test_capture_isgreaterequal
+#define isless test_capture_isless
+#define islessequal test_capture_islessequal
+#define islessgreater test_capture_islessgreater
+#define isunordered test_capture_isunordered
+
 static float float_subnormal() {
   union {
     float f;
@@ -124,36 +141,36 @@
 }
 
 TEST(math_h, isfinite) {
-  ASSERT_TRUE(test_capture_isfinite(123.0f));
-  ASSERT_TRUE(test_capture_isfinite(123.0));
-  ASSERT_TRUE(test_capture_isfinite(123.0L));
-  ASSERT_FALSE(test_capture_isfinite(HUGE_VALF));
-  ASSERT_FALSE(test_capture_isfinite(-HUGE_VALF));
-  ASSERT_FALSE(test_capture_isfinite(HUGE_VAL));
-  ASSERT_FALSE(test_capture_isfinite(-HUGE_VAL));
-  ASSERT_FALSE(test_capture_isfinite(HUGE_VALL));
-  ASSERT_FALSE(test_capture_isfinite(-HUGE_VALL));
+  ASSERT_TRUE(isfinite(123.0f));
+  ASSERT_TRUE(isfinite(123.0));
+  ASSERT_TRUE(isfinite(123.0L));
+  ASSERT_FALSE(isfinite(HUGE_VALF));
+  ASSERT_FALSE(isfinite(-HUGE_VALF));
+  ASSERT_FALSE(isfinite(HUGE_VAL));
+  ASSERT_FALSE(isfinite(-HUGE_VAL));
+  ASSERT_FALSE(isfinite(HUGE_VALL));
+  ASSERT_FALSE(isfinite(-HUGE_VALL));
 }
 
 TEST(math_h, isinf) {
-  ASSERT_FALSE(test_capture_isinf(123.0f));
-  ASSERT_FALSE(test_capture_isinf(123.0));
-  ASSERT_FALSE(test_capture_isinf(123.0L));
-  ASSERT_TRUE(test_capture_isinf(HUGE_VALF));
-  ASSERT_TRUE(test_capture_isinf(-HUGE_VALF));
-  ASSERT_TRUE(test_capture_isinf(HUGE_VAL));
-  ASSERT_TRUE(test_capture_isinf(-HUGE_VAL));
-  ASSERT_TRUE(test_capture_isinf(HUGE_VALL));
-  ASSERT_TRUE(test_capture_isinf(-HUGE_VALL));
+  ASSERT_FALSE(isinf(123.0f));
+  ASSERT_FALSE(isinf(123.0));
+  ASSERT_FALSE(isinf(123.0L));
+  ASSERT_TRUE(isinf(HUGE_VALF));
+  ASSERT_TRUE(isinf(-HUGE_VALF));
+  ASSERT_TRUE(isinf(HUGE_VAL));
+  ASSERT_TRUE(isinf(-HUGE_VAL));
+  ASSERT_TRUE(isinf(HUGE_VALL));
+  ASSERT_TRUE(isinf(-HUGE_VALL));
 }
 
 TEST(math_h, isnan) {
-  ASSERT_FALSE(test_capture_isnan(123.0f));
-  ASSERT_FALSE(test_capture_isnan(123.0));
-  ASSERT_FALSE(test_capture_isnan(123.0L));
-  ASSERT_TRUE(test_capture_isnan(nanf("")));
-  ASSERT_TRUE(test_capture_isnan(nan("")));
-  ASSERT_TRUE(test_capture_isnan(nanl("")));
+  ASSERT_FALSE(isnan(123.0f));
+  ASSERT_FALSE(isnan(123.0));
+  ASSERT_FALSE(isnan(123.0L));
+  ASSERT_TRUE(isnan(nanf("")));
+  ASSERT_TRUE(isnan(nan("")));
+  ASSERT_TRUE(isnan(nanl("")));
 }
 
 TEST(math_h, isnormal) {
@@ -167,17 +184,17 @@
 
 // TODO: isgreater, isgreaterequals, isless, islessequal, islessgreater, isunordered
 TEST(math_h, signbit) {
-  ASSERT_EQ(0, test_capture_signbit(0.0f));
-  ASSERT_EQ(0, test_capture_signbit(0.0));
-  ASSERT_EQ(0, test_capture_signbit(0.0L));
+  ASSERT_EQ(0, signbit(0.0f));
+  ASSERT_EQ(0, signbit(0.0));
+  ASSERT_EQ(0, signbit(0.0L));
 
-  ASSERT_EQ(0, test_capture_signbit(1.0f));
-  ASSERT_EQ(0, test_capture_signbit(1.0));
-  ASSERT_EQ(0, test_capture_signbit(1.0L));
+  ASSERT_EQ(0, signbit(1.0f));
+  ASSERT_EQ(0, signbit(1.0));
+  ASSERT_EQ(0, signbit(1.0L));
 
-  ASSERT_NE(0, test_capture_signbit(-1.0f));
-  ASSERT_NE(0, test_capture_signbit(-1.0));
-  ASSERT_NE(0, test_capture_signbit(-1.0L));
+  ASSERT_NE(0, signbit(-1.0f));
+  ASSERT_NE(0, signbit(-1.0));
+  ASSERT_NE(0, signbit(-1.0L));
 }
 
 // Historical BSD cruft that isn't exposed in <math.h> any more.
@@ -309,9 +326,7 @@
 // Historical BSD cruft that isn't exposed in <math.h> any more.
 extern "C" int __isinf(double);
 extern "C" int __isinff(float);
-extern "C" int isinff(float);
 extern "C" int __isinfl(long double);
-extern "C" int isinfl(long double);
 
 TEST(math_h, __isinf) {
 #if defined(ANDROID_HOST_MUSL)
@@ -367,9 +382,7 @@
 // Historical BSD cruft that isn't exposed in <math.h> any more.
 extern "C" int __isnan(double);
 extern "C" int __isnanf(float);
-extern "C" int isnanf(float);
 extern "C" int __isnanl(long double);
-extern "C" int isnanl(long double);
 
 TEST(math_h, __isnan) {
 #if defined(ANDROID_HOST_MUSL)
diff --git a/tests/memtag_stack_test.cpp b/tests/memtag_stack_test.cpp
index 97084ec..9d02830 100644
--- a/tests/memtag_stack_test.cpp
+++ b/tests/memtag_stack_test.cpp
@@ -33,9 +33,8 @@
   }
   bool is_static = std::get<1>(GetParam());
   std::string helper =
-      GetTestlibRoot() + (is_static ? "/stack_tagging_static_helper" : "/stack_tagging_helper");
+      GetTestLibRoot() + (is_static ? "/stack_tagging_static_helper" : "/stack_tagging_helper");
   const char* arg = std::get<0>(GetParam());
-  chmod(helper.c_str(), 0755);
   ExecTestHelper eth;
   eth.SetArgs({helper.c_str(), arg, nullptr});
   eth.Run([&]() { execve(helper.c_str(), eth.GetArgs(), eth.GetEnv()); }, 0, "");
diff --git a/tests/mte_utils.h b/tests/mte_utils.h
index 6e8385c..020faec 100644
--- a/tests/mte_utils.h
+++ b/tests/mte_utils.h
@@ -40,4 +40,10 @@
   return p == p_cpy;
 }
 
+static void* mte_tls() {
+  void** dst;
+  __asm__("mrs %0, TPIDR_EL0" : "=r"(dst) :);
+  return dst[-3];
+}
+
 #endif
diff --git a/tests/netinet_ether_test.cpp b/tests/netinet_ether_test.cpp
index af020ec..d7b81eb 100644
--- a/tests/netinet_ether_test.cpp
+++ b/tests/netinet_ether_test.cpp
@@ -56,4 +56,5 @@
   ASSERT_TRUE(ether_aton_r("12:34:56:78:9a:bc ", &addr) == nullptr);
   ASSERT_TRUE(ether_aton_r("g2:34:56:78:9a:bc ", &addr) == nullptr);
   ASSERT_TRUE(ether_aton_r("1G:34:56:78:9a:bc ", &addr) == nullptr);
+  ASSERT_TRUE(ether_aton_r("123:34:56:78:9a:bc ", &addr) == nullptr);
 }
diff --git a/libc/private/bionic_asm_offsets.h b/tests/netinet_igmp_test.cpp
similarity index 78%
rename from libc/private/bionic_asm_offsets.h
rename to tests/netinet_igmp_test.cpp
index e72adda..4cf7876 100644
--- a/libc/private/bionic_asm_offsets.h
+++ b/tests/netinet_igmp_test.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2023 The Android Open Source Project
+ * Copyright (C) 2024 The Android Open Source Project
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -26,8 +26,15 @@
  * SUCH DAMAGE.
  */
 
-#pragma once
+#include <gtest/gtest.h>
 
-#if defined(__aarch64__)
-#define OFFSETOF_libc_globals_memtag_stack 64
-#endif
+#include <netinet/igmp.h>
+
+TEST(netinet_igmp, smoke) {
+  // Just check that the fields exist, so code is likely to compile.
+  struct igmp i;
+  i.igmp_type = IGMP_MEMBERSHIP_QUERY;
+  i.igmp_code = 0;
+  i.igmp_cksum = 0;
+  i.igmp_group.s_addr = htonl(INADDR_ANY);
+}
diff --git a/tests/prebuilt-elf-files/arm64/libtest_empty.so b/tests/prebuilt-elf-files/arm64/libtest_empty.so
index d8775b6..76c569b 100755
--- a/tests/prebuilt-elf-files/arm64/libtest_empty.so
+++ b/tests/prebuilt-elf-files/arm64/libtest_empty.so
Binary files differ
diff --git a/tests/prebuilt-elf-files/x86_64/libtest_empty.so b/tests/prebuilt-elf-files/x86_64/libtest_empty.so
index c3f3638..ce519b2 100755
--- a/tests/prebuilt-elf-files/x86_64/libtest_empty.so
+++ b/tests/prebuilt-elf-files/x86_64/libtest_empty.so
Binary files differ
diff --git a/tests/pthread_test.cpp b/tests/pthread_test.cpp
index 1a882be..2bf755b 100644
--- a/tests/pthread_test.cpp
+++ b/tests/pthread_test.cpp
@@ -1423,10 +1423,11 @@
 static void AtForkChild1() { g_atfork_child_calls = (g_atfork_child_calls * 10) + 1; }
 static void AtForkChild2() { g_atfork_child_calls = (g_atfork_child_calls * 10) + 2; }
 
-TEST(pthread, pthread_atfork_smoke) {
+TEST(pthread, pthread_atfork_smoke_fork) {
   ASSERT_EQ(0, pthread_atfork(AtForkPrepare1, AtForkParent1, AtForkChild1));
   ASSERT_EQ(0, pthread_atfork(AtForkPrepare2, AtForkParent2, AtForkChild2));
 
+  g_atfork_prepare_calls = g_atfork_parent_calls = g_atfork_child_calls = 0;
   pid_t pid = fork();
   ASSERT_NE(-1, pid) << strerror(errno);
 
@@ -1442,6 +1443,44 @@
   AssertChildExited(pid, 0);
 }
 
+TEST(pthread, pthread_atfork_smoke_vfork) {
+  ASSERT_EQ(0, pthread_atfork(AtForkPrepare1, AtForkParent1, AtForkChild1));
+  ASSERT_EQ(0, pthread_atfork(AtForkPrepare2, AtForkParent2, AtForkChild2));
+
+  g_atfork_prepare_calls = g_atfork_parent_calls = g_atfork_child_calls = 0;
+  pid_t pid = vfork();
+  ASSERT_NE(-1, pid) << strerror(errno);
+
+  // atfork handlers are not called.
+  if (pid == 0) {
+    ASSERT_EQ(0, g_atfork_child_calls);
+    _exit(0);
+  }
+  ASSERT_EQ(0, g_atfork_parent_calls);
+  ASSERT_EQ(0, g_atfork_prepare_calls);
+  AssertChildExited(pid, 0);
+}
+
+TEST(pthread, pthread_atfork_smoke__Fork) {
+#if defined(__BIONIC__)
+  ASSERT_EQ(0, pthread_atfork(AtForkPrepare1, AtForkParent1, AtForkChild1));
+  ASSERT_EQ(0, pthread_atfork(AtForkPrepare2, AtForkParent2, AtForkChild2));
+
+  g_atfork_prepare_calls = g_atfork_parent_calls = g_atfork_child_calls = 0;
+  pid_t pid = _Fork();
+  ASSERT_NE(-1, pid) << strerror(errno);
+
+  // atfork handlers are not called.
+  if (pid == 0) {
+    ASSERT_EQ(0, g_atfork_child_calls);
+    _exit(0);
+  }
+  ASSERT_EQ(0, g_atfork_parent_calls);
+  ASSERT_EQ(0, g_atfork_prepare_calls);
+  AssertChildExited(pid, 0);
+#endif
+}
+
 TEST(pthread, pthread_attr_getscope) {
   pthread_attr_t attr;
   ASSERT_EQ(0, pthread_attr_init(&attr));
diff --git a/tests/setjmp_test.cpp b/tests/setjmp_test.cpp
index 6ae8bfd..9469285 100644
--- a/tests/setjmp_test.cpp
+++ b/tests/setjmp_test.cpp
@@ -174,38 +174,65 @@
   }
 }
 
-#if defined(__aarch64__)
+#if defined(__arm__) || defined(__aarch64__)
+// arm and arm64 have the same callee save fp registers (8-15),
+// but use different instructions for accessing them.
+#if defined(__arm__)
+#define SET_FREG(n, v) asm volatile("vmov.f64 d"#n ", #"#v : : : "d"#n)
+#define GET_FREG(n) ({ double _r; asm volatile("fcpyd %P0, d"#n : "=w"(_r) : :); _r;})
+#define CLEAR_FREG(n) asm volatile("vmov.i64 d"#n ", #0x0" : : : "d"#n)
+#elif defined(__aarch64__)
 #define SET_FREG(n, v) asm volatile("fmov d"#n ", "#v : : : "d"#n)
+#define GET_FREG(n) ({ double _r; asm volatile("fmov %0, d"#n : "=r"(_r) : :); _r; })
 #define CLEAR_FREG(n) asm volatile("fmov d"#n ", xzr" : : : "d"#n)
+#endif
 #define SET_FREGS \
   SET_FREG(8, 8.0); SET_FREG(9, 9.0); SET_FREG(10, 10.0); SET_FREG(11, 11.0); \
-  SET_FREG(12, 12.0); SET_FREG(13, 13.0); SET_FREG(14, 14.0); SET_FREG(15, 15.0);
+  SET_FREG(12, 12.0); SET_FREG(13, 13.0); SET_FREG(14, 14.0); SET_FREG(15, 15.0)
 #define CLEAR_FREGS \
   CLEAR_FREG(8); CLEAR_FREG(9); CLEAR_FREG(10); CLEAR_FREG(11); \
-  CLEAR_FREG(12); CLEAR_FREG(13); CLEAR_FREG(14); CLEAR_FREG(15);
-#define GET_FREG(n) ({ double _r; asm volatile("fmov %0, d"#n : "=r"(_r) : :); _r; })
+  CLEAR_FREG(12); CLEAR_FREG(13); CLEAR_FREG(14); CLEAR_FREG(15)
 #define CHECK_FREGS \
-    EXPECT_EQ(8.0, GET_FREG(8)); EXPECT_EQ(9.0, GET_FREG(9)); \
-    EXPECT_EQ(10.0, GET_FREG(10)); EXPECT_EQ(11.0, GET_FREG(11)); \
-    EXPECT_EQ(12.0, GET_FREG(12)); EXPECT_EQ(13.0, GET_FREG(13)); \
-    EXPECT_EQ(14.0, GET_FREG(14)); EXPECT_EQ(15.0, GET_FREG(15));
-#elif defined(__arm__)
-#define SET_FREG(n, v) \
-  ({ const double _v{v}; asm volatile("fcpyd d"#n ", %P0" : : "w"(_v) : "d"#n); })
+  EXPECT_EQ(8.0, GET_FREG(8)); EXPECT_EQ(9.0, GET_FREG(9)); \
+  EXPECT_EQ(10.0, GET_FREG(10)); EXPECT_EQ(11.0, GET_FREG(11)); \
+  EXPECT_EQ(12.0, GET_FREG(12)); EXPECT_EQ(13.0, GET_FREG(13)); \
+  EXPECT_EQ(14.0, GET_FREG(14)); EXPECT_EQ(15.0, GET_FREG(15))
+
+#elif defined(__riscv)
+// riscv64 has callee save registers fs0-fs11.
+// TODO: use Zfa to get 1.0 rather than the one_p trick.
 #define SET_FREGS \
-  SET_FREG(8, 8); SET_FREG(9, 9); SET_FREG(10, 10); SET_FREG(11, 11); \
-  SET_FREG(12, 12); SET_FREG(13, 13); SET_FREG(14, 14); SET_FREG(15, 15);
+  double one = 1, *one_p = &one; \
+  asm volatile("fmv.d.x fs0, zero ; fld fs1, (%0) ; \
+                fadd.d fs2, fs1, fs1 ; fadd.d fs3, fs2, fs1 ; \
+                fadd.d fs4, fs3, fs1 ; fadd.d fs5, fs4, fs1 ; \
+                fadd.d fs6, fs5, fs1 ; fadd.d fs7, fs6, fs1 ; \
+                fadd.d fs8, fs7, fs1 ; fadd.d fs9, fs8, fs1 ; \
+                fadd.d fs10, fs9, fs1 ; fadd.d fs11, fs10, fs1" \
+               : \
+               : "r"(one_p) \
+               : "fs0", "fs1", "fs2", "fs3", "fs4", "fs5", \
+                  "fs6", "fs7", "fs8", "fs9", "fs10", "fs11")
 #define CLEAR_FREGS \
-  SET_FREG(8, 0); SET_FREG(9, 0); SET_FREG(10, 0); SET_FREG(11, 0); \
-  SET_FREG(12, 0); SET_FREG(13, 0); SET_FREG(14, 0); SET_FREG(15, 0);
-#define GET_FREG(n) ({ double _r; asm volatile("fcpyd %P0, d"#n : "=w"(_r) : :); _r;})
+  asm volatile("fmv.d.x fs0, zero ; fmv.d.x fs1, zero ; \
+                fmv.d.x fs2, zero ; fmv.d.x fs3, zero ; \
+                fmv.d.x fs4, zero ; fmv.d.x fs5, zero ; \
+                fmv.d.x fs6, zero ; fmv.d.x fs7, zero ; \
+                fmv.d.x fs8, zero ; fmv.d.x fs9, zero ; \
+                fmv.d.x fs10, zero ; fmv.d.x fs11, zero" \
+               : : : "fs0", "fs1", "fs2", "fs3", "fs4", "fs5", \
+                     "fs6", "fs7", "fs8", "fs9", "fs10", "fs11")
+#define GET_FREG(n) ({ double _r; asm volatile("fmv.d %0, fs"#n : "=f"(_r) : :); _r; })
 #define CHECK_FREGS \
-    EXPECT_EQ(8.0, GET_FREG(8)); EXPECT_EQ(9.0, GET_FREG(9)); \
-    EXPECT_EQ(10.0, GET_FREG(10)); EXPECT_EQ(11.0, GET_FREG(11)); \
-    EXPECT_EQ(12.0, GET_FREG(12)); EXPECT_EQ(13.0, GET_FREG(13)); \
-    EXPECT_EQ(14.0, GET_FREG(14)); EXPECT_EQ(15.0, GET_FREG(15));
+  EXPECT_EQ(0.0, GET_FREG(0)); EXPECT_EQ(1.0, GET_FREG(1)); \
+  EXPECT_EQ(2.0, GET_FREG(2)); EXPECT_EQ(3.0, GET_FREG(3)); \
+  EXPECT_EQ(4.0, GET_FREG(4)); EXPECT_EQ(5.0, GET_FREG(5)); \
+  EXPECT_EQ(6.0, GET_FREG(6)); EXPECT_EQ(7.0, GET_FREG(7)); \
+  EXPECT_EQ(8.0, GET_FREG(8)); EXPECT_EQ(9.0, GET_FREG(9)); \
+  EXPECT_EQ(10.0, GET_FREG(10)); EXPECT_EQ(11.0, GET_FREG(11))
+
 #else
-/* The other architectures don't save/restore fp registers. */
+// x86 and x86-64 don't save/restore fp registers.
 #define SET_FREGS
 #define CLEAR_FREGS
 #define CHECK_FREGS
diff --git a/tests/stack_protector_test.cpp b/tests/stack_protector_test.cpp
index c4be78c..5817a27 100644
--- a/tests/stack_protector_test.cpp
+++ b/tests/stack_protector_test.cpp
@@ -48,7 +48,7 @@
     printf("[thread %d] TLS stack guard = %p\n", tid, guard);
 
     // Duplicate tid. gettid(2) bug? Seeing this would be very upsetting.
-    ASSERT_TRUE(tids.find(tid) == tids.end());
+    ASSERT_FALSE(tids.contains(tid));
 
     // Uninitialized guard. Our bug. Note this is potentially flaky; we _could_
     // get four random zero bytes, but it should be vanishingly unlikely.
@@ -136,7 +136,7 @@
   if (stack_mte_enabled()) {
     GTEST_SKIP() << "Stack MTE is enabled, stack protector is not available";
   } else if (hwasan_enabled()) {
-    ASSERT_EXIT(modify_stack_protector_test(), testing::KilledBySignal(SIGABRT), "tag-mismatch");
+    GTEST_SKIP() << "HWASan is enabled, stack protector is not testable";
   } else {
     ASSERT_EXIT(modify_stack_protector_test(), testing::KilledBySignal(SIGABRT),
                 "stack corruption detected");
diff --git a/tests/static_tls_layout_test.cpp b/tests/static_tls_layout_test.cpp
new file mode 100644
index 0000000..bf508e8
--- /dev/null
+++ b/tests/static_tls_layout_test.cpp
@@ -0,0 +1,213 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#define STATIC_TLS_LAYOUT_TEST
+
+#include "private/bionic_elf_tls.h"
+
+#include <string>
+#include <tuple>
+
+#include <gtest/gtest.h>
+
+#include "private/bionic_tls.h"
+
+using namespace std::string_literals;
+
+struct AlignedSizeFlat {
+  size_t size = 0;
+  size_t align = 1;
+  size_t skew = 0;
+};
+
+static TlsAlignedSize unflatten_size(AlignedSizeFlat flat) {
+  return TlsAlignedSize{.size = flat.size,
+                        .align = TlsAlign{
+                            .value = flat.align,
+                            .skew = flat.skew,
+                        }};
+}
+
+TEST(static_tls_layout, reserve_tp_pair) {
+  auto reserve_tp = [](const AlignedSizeFlat& before, const AlignedSizeFlat& after,
+                       StaticTlsLayout layout = {}) {
+    auto allocs = layout.reserve_tp_pair(unflatten_size(before), unflatten_size(after));
+    return std::make_tuple(layout, allocs);
+  };
+
+  StaticTlsLayout layout;
+  StaticTlsLayout::TpAllocations allocs;
+
+  // Simple case.
+  std::tie(layout, allocs) = reserve_tp({.size = 8, .align = 2}, {.size = 16, .align = 2});
+  EXPECT_EQ(0u, allocs.before);
+  EXPECT_EQ(8u, allocs.tp);
+  EXPECT_EQ(8u, allocs.after);
+  EXPECT_EQ(24u, layout.size());
+  EXPECT_EQ(2u, layout.align_);
+
+  // Zero-sized `before`
+  std::tie(layout, allocs) = reserve_tp({.size = 0}, {.size = 64, .align = 8});
+  EXPECT_EQ(0u, allocs.before);
+  EXPECT_EQ(0u, allocs.tp);
+  EXPECT_EQ(0u, allocs.after);
+
+  // Zero-sized `after`
+  std::tie(layout, allocs) = reserve_tp({.size = 64, .align = 8}, {.size = 0});
+  EXPECT_EQ(0u, allocs.before);
+  EXPECT_EQ(64u, allocs.tp);
+  EXPECT_EQ(64u, allocs.after);
+
+  // The `before` allocation is shifted forward to the TP.
+  std::tie(layout, allocs) = reserve_tp({.size = 1}, {.size = 64, .align = 8});
+  EXPECT_EQ(7u, allocs.before);
+  EXPECT_EQ(8u, allocs.tp);
+  EXPECT_EQ(8u, allocs.after);
+
+  // Alignment gap between `before` and TP.
+  std::tie(layout, allocs) = reserve_tp({.size = 9, .align = 4}, {.size = 1});
+  EXPECT_EQ(0u, allocs.before);
+  EXPECT_EQ(12u, allocs.tp);
+  EXPECT_EQ(12u, allocs.after);
+  EXPECT_EQ(13u, layout.size());
+  EXPECT_EQ(4u, layout.align_);
+
+  // Alignment gap between `before` and TP.
+  std::tie(layout, allocs) = reserve_tp({.size = 9, .align = 4}, {.size = 128, .align = 64});
+  EXPECT_EQ(52u, allocs.before);
+  EXPECT_EQ(64u, allocs.tp);
+  EXPECT_EQ(64u, allocs.after);
+  EXPECT_EQ(192u, layout.size());
+  EXPECT_EQ(64u, layout.align_);
+
+  // Skew-aligned `before` with low alignment.
+  std::tie(layout, allocs) =
+      reserve_tp({.size = 1, .align = 4, .skew = 1}, {.size = 64, .align = 8});
+  EXPECT_EQ(5u, allocs.before);
+  EXPECT_EQ(8u, allocs.tp);
+
+  // Skew-aligned `before` with high alignment.
+  std::tie(layout, allocs) = reserve_tp({.size = 48, .align = 64, .skew = 17}, {.size = 1});
+  EXPECT_EQ(17u, allocs.before);
+  EXPECT_EQ(128u, allocs.tp);
+
+  // An unrelated byte precedes the pair in the layout. Make sure `before` is
+  // still aligned.
+  layout = {};
+  layout.reserve_type<char>();
+  std::tie(layout, allocs) = reserve_tp({.size = 12, .align = 16}, {.size = 1}, layout);
+  EXPECT_EQ(16u, allocs.before);
+  EXPECT_EQ(32u, allocs.tp);
+
+  // Skew-aligned `after`.
+  std::tie(layout, allocs) =
+      reserve_tp({.size = 32, .align = 8}, {.size = 16, .align = 4, .skew = 3});
+  EXPECT_EQ(0u, allocs.before);
+  EXPECT_EQ(32u, allocs.tp);
+  EXPECT_EQ(35u, allocs.after);
+  EXPECT_EQ(51u, layout.size());
+}
+
+// A "NUM_words" literal is the size in bytes of NUM words of memory.
+static size_t operator""_words(unsigned long long i) {
+  return i * sizeof(void*);
+}
+
+TEST(static_tls_layout, arm) {
+#if !defined(__arm__) && !defined(__aarch64__)
+  GTEST_SKIP() << "test only applies to arm32/arm64 targets";
+#endif
+
+  auto reserve_exe = [](const AlignedSizeFlat& config) {
+    StaticTlsLayout layout;
+    TlsSegment seg = {.aligned_size = unflatten_size(config)};
+    layout.reserve_exe_segment_and_tcb(&seg, "prog");
+    return layout;
+  };
+
+  auto underalign_error = [](size_t align, size_t offset) {
+    return R"(error: "prog": executable's TLS segment is underaligned: )"s
+           R"(alignment is )"s +
+           std::to_string(align) + R"( \(skew )" + std::to_string(offset) +
+           R"(\), needs to be at least (32 for ARM|64 for ARM64) Bionic)"s;
+  };
+
+  // Amount of memory needed for negative TLS slots, given a segment p_align of
+  // 8 or 16 words.
+  const size_t base8 = __BIONIC_ALIGN(-MIN_TLS_SLOT, 8) * sizeof(void*);
+  const size_t base16 = __BIONIC_ALIGN(-MIN_TLS_SLOT, 16) * sizeof(void*);
+
+  StaticTlsLayout layout;
+
+  // An executable with a single word.
+  layout = reserve_exe({.size = 1_words, .align = 8_words});
+  EXPECT_EQ(base8 + MIN_TLS_SLOT * sizeof(void*), layout.offset_bionic_tcb());
+  EXPECT_EQ(base8, layout.offset_thread_pointer());
+  EXPECT_EQ(base8 + 8_words, layout.offset_exe());
+  EXPECT_EQ(base8 + 9_words, layout.size());
+  EXPECT_EQ(8_words, layout.align_);
+
+  // Simple underalignment case.
+  EXPECT_DEATH(reserve_exe({.size = 1_words, .align = 1_words}), underalign_error(1_words, 0));
+
+  // Skewed by 1 word is OK.
+  layout = reserve_exe({.size = 1_words, .align = 8_words, .skew = 1_words});
+  EXPECT_EQ(base8, layout.offset_thread_pointer());
+  EXPECT_EQ(base8 + 9_words, layout.offset_exe());
+  EXPECT_EQ(base8 + 10_words, layout.size());
+  EXPECT_EQ(8_words, layout.align_);
+
+  // Skewed by 2 words would overlap Bionic slots, regardless of the p_align
+  // value.
+  EXPECT_DEATH(reserve_exe({.size = 1_words, .align = 8_words, .skew = 2_words}),
+               underalign_error(8_words, 2_words));
+  EXPECT_DEATH(reserve_exe({.size = 1_words, .align = 0x1000, .skew = 2_words}),
+               underalign_error(0x1000, 2_words));
+
+  // Skewed by 8 words is OK again.
+  layout = reserve_exe({.size = 1_words, .align = 16_words, .skew = 8_words});
+  EXPECT_EQ(base16, layout.offset_thread_pointer());
+  EXPECT_EQ(base16 + 8_words, layout.offset_exe());
+  EXPECT_EQ(base16 + 9_words, layout.size());
+  EXPECT_EQ(16_words, layout.align_);
+
+  // Skewed by 9 words is also OK. (The amount of skew doesn't need to be a
+  // multiple of anything.)
+  layout = reserve_exe({.size = 1_words, .align = 16_words, .skew = 9_words});
+  EXPECT_EQ(base16, layout.offset_thread_pointer());
+  EXPECT_EQ(base16 + 9_words, layout.offset_exe());
+  EXPECT_EQ(base16 + 10_words, layout.size());
+  EXPECT_EQ(16_words, layout.align_);
+
+  // Skew with large alignment.
+  layout = reserve_exe({.size = 1_words, .align = 256_words, .skew = 8_words});
+  EXPECT_EQ(256_words, layout.offset_thread_pointer());
+  EXPECT_EQ(264_words, layout.offset_exe());
+  EXPECT_EQ(265_words, layout.size());
+  EXPECT_EQ(256_words, layout.align_);
+}
diff --git a/tests/stdio_test.cpp b/tests/stdio_test.cpp
index 5cb634c..7cdfa42 100644
--- a/tests/stdio_test.cpp
+++ b/tests/stdio_test.cpp
@@ -121,9 +121,10 @@
   EXPECT_SWPRINTF_N(expected, static_cast<int>(wcslen(expected)), fmt __VA_OPT__(, ) __VA_ARGS__)
 
 TEST(STDIO_TEST, flockfile_18208568_stderr) {
-  // Check that we have a _recursive_ mutex for flockfile.
   flockfile(stderr);
-  feof(stderr); // We don't care about the result, but this needs to take the lock.
+  // Check that we're using a _recursive_ mutex for flockfile() by calling
+  // something that will take the lock.
+  ASSERT_EQ(0, feof(stderr));
   funlockfile(stderr);
 }
 
@@ -132,7 +133,9 @@
   FILE* fp = fopen("/dev/null", "w");
   ASSERT_TRUE(fp != nullptr);
   flockfile(fp);
-  feof(fp);
+  // Check that we're using a _recursive_ mutex for flockfile() by calling
+  // something that will take the lock.
+  ASSERT_EQ(0, feof(fp));
   funlockfile(fp);
   fclose(fp);
 }
diff --git a/tests/struct_layout_test.cpp b/tests/struct_layout_test.cpp
index 0123ed9..1f04344 100644
--- a/tests/struct_layout_test.cpp
+++ b/tests/struct_layout_test.cpp
@@ -30,7 +30,7 @@
 #define CHECK_OFFSET(name, field, offset) \
     check_offset(#name, #field, offsetof(name, field), offset);
 #ifdef __LP64__
-  CHECK_SIZE(pthread_internal_t, 776);
+  CHECK_SIZE(pthread_internal_t, 816);
   CHECK_OFFSET(pthread_internal_t, next, 0);
   CHECK_OFFSET(pthread_internal_t, prev, 8);
   CHECK_OFFSET(pthread_internal_t, tid, 16);
@@ -55,6 +55,8 @@
   CHECK_OFFSET(pthread_internal_t, dlerror_buffer, 248);
   CHECK_OFFSET(pthread_internal_t, bionic_tls, 760);
   CHECK_OFFSET(pthread_internal_t, errno_value, 768);
+  CHECK_OFFSET(pthread_internal_t, bionic_tcb, 776);
+  CHECK_OFFSET(pthread_internal_t, stack_mte_ringbuffer_vma_name_buffer, 784);
   CHECK_SIZE(bionic_tls, 12200);
   CHECK_OFFSET(bionic_tls, key_data, 0);
   CHECK_OFFSET(bionic_tls, locale, 2080);
@@ -72,7 +74,7 @@
   CHECK_OFFSET(bionic_tls, bionic_systrace_disabled, 12193);
   CHECK_OFFSET(bionic_tls, padding, 12194);
 #else
-  CHECK_SIZE(pthread_internal_t, 668);
+  CHECK_SIZE(pthread_internal_t, 704);
   CHECK_OFFSET(pthread_internal_t, next, 0);
   CHECK_OFFSET(pthread_internal_t, prev, 4);
   CHECK_OFFSET(pthread_internal_t, tid, 8);
@@ -97,6 +99,8 @@
   CHECK_OFFSET(pthread_internal_t, dlerror_buffer, 148);
   CHECK_OFFSET(pthread_internal_t, bionic_tls, 660);
   CHECK_OFFSET(pthread_internal_t, errno_value, 664);
+  CHECK_OFFSET(pthread_internal_t, bionic_tcb, 668);
+  CHECK_OFFSET(pthread_internal_t, stack_mte_ringbuffer_vma_name_buffer, 672);
   CHECK_SIZE(bionic_tls, 11080);
   CHECK_OFFSET(bionic_tls, key_data, 0);
   CHECK_OFFSET(bionic_tls, locale, 1040);
diff --git a/tests/sys_hwprobe_test.cpp b/tests/sys_hwprobe_test.cpp
index 6b74e18..fd59e1d 100644
--- a/tests/sys_hwprobe_test.cpp
+++ b/tests/sys_hwprobe_test.cpp
@@ -33,6 +33,68 @@
 #include <sys/syscall.h>
 #endif
 
+
+#if defined(__riscv)
+#include <riscv_vector.h>
+
+__attribute__((noinline))
+uint64_t scalar_cast(uint8_t const* p) {
+  return *(uint64_t const*)p;
+}
+
+__attribute__((noinline))
+uint64_t scalar_memcpy(uint8_t const* p) {
+  uint64_t r;
+  __builtin_memcpy(&r, p, sizeof(r));
+  return r;
+}
+
+__attribute__((noinline))
+uint64_t vector_memcpy(uint8_t* d, uint8_t const* p) {
+  __builtin_memcpy(d, p, 16);
+  return *(uint64_t const*)d;
+}
+
+__attribute__((noinline))
+uint64_t vector_ldst(uint8_t* d, uint8_t const* p) {
+  __riscv_vse8(d, __riscv_vle8_v_u8m1(p, 16), 16);
+  return *(uint64_t const*)d;
+}
+
+__attribute__((noinline))
+uint64_t vector_ldst64(uint8_t* d, uint8_t const* p) {
+  __riscv_vse64((unsigned long *)d, __riscv_vle64_v_u64m1((const unsigned long *)p, 16), 16);
+  return *(uint64_t const*)d;
+}
+
+// For testing scalar and vector unaligned accesses.
+uint64_t tmp[3] = {1,1,1};
+uint64_t dst[3] = {1,1,1};
+#endif
+
+TEST(sys_hwprobe, __riscv_hwprobe_misaligned_scalar) {
+#if defined(__riscv)
+  uint8_t* p = (uint8_t*)tmp + 1;
+  ASSERT_NE(0U, scalar_cast(p));
+  ASSERT_NE(0U, scalar_memcpy(p));
+#else
+  GTEST_SKIP() << "__riscv_hwprobe requires riscv64";
+#endif
+}
+
+TEST(sys_hwprobe, __riscv_hwprobe_misaligned_vector) {
+#if defined(__riscv)
+  uint8_t* p = (uint8_t*)tmp + 1;
+  uint8_t* d = (uint8_t*)dst + 1;
+
+  ASSERT_NE(0U, vector_ldst(d, p));
+  ASSERT_NE(0U, vector_memcpy(d, p));
+  ASSERT_NE(0U, vector_ldst64(d, p));
+#else
+  GTEST_SKIP() << "__riscv_hwprobe requires riscv64";
+#endif
+}
+
 TEST(sys_hwprobe, __riscv_hwprobe) {
 #if defined(__riscv) && __has_include(<sys/hwprobe.h>)
   riscv_hwprobe probes[] = {{.key = RISCV_HWPROBE_KEY_IMA_EXT_0},
@@ -82,4 +144,4 @@
 #else
   GTEST_SKIP() << "__riscv_hwprobe requires riscv64";
 #endif
-}
+}
\ No newline at end of file
diff --git a/libc/private/bionic_asm_offsets.h b/tests/sys_io_test.cpp
similarity index 71%
copy from libc/private/bionic_asm_offsets.h
copy to tests/sys_io_test.cpp
index e72adda..293ceb2 100644
--- a/libc/private/bionic_asm_offsets.h
+++ b/tests/sys_io_test.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2023 The Android Open Source Project
+ * Copyright (C) 2024 The Android Open Source Project
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -26,8 +26,28 @@
  * SUCH DAMAGE.
  */
 
-#pragma once
+#include <gtest/gtest.h>
 
-#if defined(__aarch64__)
-#define OFFSETOF_libc_globals_memtag_stack 64
+#include <sys/io.h>
+
+#include "utils.h"
+
+TEST(sys_io, iopl) {
+#if defined(__i386__) || defined(__x86_64__)
+  errno = 0;
+  ASSERT_EQ(-1, iopl(4));
+  ASSERT_ERRNO(EINVAL);
+#else
+  GTEST_SKIP() << "iopl requires x86/x86-64";
 #endif
+}
+
+TEST(sys_io, ioperm) {
+#if defined(__i386__) || defined(__x86_64__)
+  errno = 0;
+  ASSERT_EQ(-1, ioperm(65535, 4, 0));
+  ASSERT_ERRNO(EINVAL);
+#else
+  GTEST_SKIP() << "ioperm requires x86/x86-64";
+#endif
+}
diff --git a/tests/sys_mman_test.cpp b/tests/sys_mman_test.cpp
index df13e07..40c85f2 100644
--- a/tests/sys_mman_test.cpp
+++ b/tests/sys_mman_test.cpp
@@ -243,6 +243,20 @@
   ASSERT_EQ(0, munmap(map, kPageSize));
 }
 
+TEST(sys_mman, mremap_MREMAP_FIXED) {
+  // We're not trying to test the kernel here; that's external/ltp's job.
+  // We just want to check that optional argument (mremap() is varargs)
+  // gets passed through in an MREMAP_FIXED call.
+  void* vma1 = mmap(NULL, getpagesize(), PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+  ASSERT_NE(MAP_FAILED, vma1);
+
+  void* vma2 = mmap(NULL, getpagesize(), PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+  ASSERT_NE(MAP_FAILED, vma2);
+
+  void* vma3 = mremap(vma1, getpagesize(), getpagesize(), MREMAP_FIXED | MREMAP_MAYMOVE, vma2);
+  ASSERT_EQ(vma2, vma3);
+}
+
 TEST(sys_mman, mmap_bug_27265969) {
   char* base = reinterpret_cast<char*>(
       mmap(nullptr, kPageSize * 2, PROT_EXEC | PROT_READ, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0));
diff --git a/tests/sys_statvfs_test.cpp b/tests/sys_statvfs_test.cpp
index 73b2a96..5dd7b93 100644
--- a/tests/sys_statvfs_test.cpp
+++ b/tests/sys_statvfs_test.cpp
@@ -25,7 +25,7 @@
 #include <string>
 
 template <typename StatVfsT> void Check(StatVfsT& sb) {
-  EXPECT_EQ(4096U, sb.f_bsize);
+  EXPECT_EQ(getpagesize(), static_cast<int>(sb.f_bsize));
   EXPECT_EQ(0U, sb.f_bfree);
   EXPECT_EQ(0U, sb.f_ffree);
   EXPECT_EQ(255U, sb.f_namemax);
diff --git a/tests/sys_thread_properties_test.cpp b/tests/sys_thread_properties_test.cpp
index cf1a6ba..816be41 100644
--- a/tests/sys_thread_properties_test.cpp
+++ b/tests/sys_thread_properties_test.cpp
@@ -24,8 +24,6 @@
   const char expected_out[] =
       "got test_static_tls_bounds\niterate_cb i = 0\ndone_iterate_dynamic_tls\n";
   std::string helper = GetTestLibRoot() + "tls_properties_helper/tls_properties_helper";
-  chmod(helper.c_str(), 0755);  // TODO: "x" lost in CTS, b/34945607
-
   ExecTestHelper eth;
   eth.SetArgs({helper.c_str(), nullptr});
   eth.Run([&]() { execve(helper.c_str(), eth.GetArgs(), eth.GetEnv()); }, 0, expected_out);
@@ -37,11 +35,8 @@
   // tests/libs/thread_exit_cb_helper.cpp
   const char expected_out[] = "exit_cb_1 called exit_cb_2 called exit_cb_3 called";
   std::string helper = GetTestLibRoot() + "thread_exit_cb_helper/thread_exit_cb_helper";
-  chmod(helper.c_str(), 0755);  // TODO: "x" lost in CTS, b/34945607
-
   ExecTestHelper eth;
   eth.SetArgs({helper.c_str(), nullptr});
   eth.Run([&]() { execve(helper.c_str(), eth.GetArgs(), eth.GetEnv()); }, 0, expected_out);
-
 #endif
 }
diff --git a/tests/sys_vfs_test.cpp b/tests/sys_vfs_test.cpp
index 96fd61a..e783190 100644
--- a/tests/sys_vfs_test.cpp
+++ b/tests/sys_vfs_test.cpp
@@ -27,7 +27,7 @@
 #include "utils.h"
 
 template <typename StatFsT> void Check(StatFsT& sb) {
-  EXPECT_EQ(4096, static_cast<int>(sb.f_bsize));
+  EXPECT_EQ(getpagesize(), static_cast<int>(sb.f_bsize));
   EXPECT_EQ(0U, sb.f_bfree);
   EXPECT_EQ(0U, sb.f_ffree);
   EXPECT_EQ(255, static_cast<int>(sb.f_namelen));
diff --git a/tests/system_properties_test.cpp b/tests/system_properties_test.cpp
index 0b7f5ae..f11f509 100644
--- a/tests/system_properties_test.cpp
+++ b/tests/system_properties_test.cpp
@@ -593,7 +593,13 @@
   ASSERT_TRUE(system_properties.valid());
 
   auto name = "ro.super_long_property"s;
+
+#ifdef LARGE_SYSTEM_PROPERTY_NODE
+  auto value = std::string(1024 * 1024 + 1, 'x');
+#else
   auto value = std::string(128 * 1024 + 1, 'x');
+#endif
+
   ASSERT_NE(0, system_properties.Add(name.c_str(), name.size(), value.c_str(), value.size()));
 
 #else   // __BIONIC__
diff --git a/tests/termios_test.cpp b/tests/termios_test.cpp
index 480f3af..19e9bfe 100644
--- a/tests/termios_test.cpp
+++ b/tests/termios_test.cpp
@@ -96,7 +96,7 @@
   EXPECT_EQ(0U, (t.c_oflag & OPOST));
   EXPECT_EQ(0U, (t.c_lflag & (ECHO|ECHONL|ICANON|ISIG|IEXTEN)));
   EXPECT_EQ(0U, (t.c_cflag & PARENB));
-  EXPECT_EQ(CS8, static_cast<int>(t.c_cflag & CSIZE));
+  EXPECT_EQ(static_cast<unsigned>(CS8), (t.c_cflag & CSIZE));
   EXPECT_EQ(1, t.c_cc[VMIN]);
   EXPECT_EQ(0, t.c_cc[VTIME]);
 }
diff --git a/tests/time_test.cpp b/tests/time_test.cpp
index ca8e260..baafbf6 100644
--- a/tests/time_test.cpp
+++ b/tests/time_test.cpp
@@ -31,6 +31,8 @@
 #include <thread>
 
 #include "SignalUtils.h"
+#include "android-base/file.h"
+#include "android-base/strings.h"
 #include "utils.h"
 
 using namespace std::chrono_literals;
@@ -797,21 +799,41 @@
   ASSERT_EQ(1, timer_create_NULL_signal_handler_invocation_count);
 }
 
-TEST(time, timer_create_EINVAL) {
-  clockid_t invalid_clock = 16;
+static int GetThreadCount() {
+  std::string status;
+  if (android::base::ReadFileToString("/proc/self/status", &status)) {
+    for (const auto& line : android::base::Split(status, "\n")) {
+      int thread_count;
+      if (sscanf(line.c_str(), "Threads: %d", &thread_count) == 1) {
+        return thread_count;
+      }
+    }
+  }
+  return -1;
+}
 
-  // A SIGEV_SIGNAL timer is easy; the kernel does all that.
+TEST(time, timer_create_EINVAL) {
+  const clockid_t kInvalidClock = 16;
+
+  // A SIGEV_SIGNAL timer failure is easy; that's the kernel's problem.
   timer_t timer_id;
-  ASSERT_EQ(-1, timer_create(invalid_clock, nullptr, &timer_id));
+  ASSERT_EQ(-1, timer_create(kInvalidClock, nullptr, &timer_id));
   ASSERT_ERRNO(EINVAL);
 
-  // A SIGEV_THREAD timer is more interesting because we have stuff to clean up.
-  sigevent se;
-  memset(&se, 0, sizeof(se));
+  // A SIGEV_THREAD timer failure is more interesting because we have a thread
+  // to clean up (https://issuetracker.google.com/340125671).
+  sigevent se = {};
   se.sigev_notify = SIGEV_THREAD;
   se.sigev_notify_function = NoOpNotifyFunction;
-  ASSERT_EQ(-1, timer_create(invalid_clock, &se, &timer_id));
+  ASSERT_EQ(-1, timer_create(kInvalidClock, &se, &timer_id));
   ASSERT_ERRNO(EINVAL);
+
+  // timer_create() doesn't guarantee that the thread will be dead _before_
+  // it returns because that would require extra synchronization that's
+  // unnecessary in the normal (successful) case. A timeout here means we
+  // leaked a thread.
+  while (GetThreadCount() > 1) {
+  }
 }
 
 TEST(time, timer_create_multiple) {
diff --git a/tests/unistd_test.cpp b/tests/unistd_test.cpp
index 88f5851..78b55c1 100644
--- a/tests/unistd_test.cpp
+++ b/tests/unistd_test.cpp
@@ -440,6 +440,22 @@
   TestSyncFunction(syncfs);
 }
 
+TEST(UNISTD_TEST, _Fork) {
+#if defined(__BIONIC__)
+  pid_t rc = _Fork();
+  ASSERT_NE(-1, rc);
+  if (rc == 0) {
+    _exit(66);
+  }
+
+  int status;
+  pid_t wait_result = waitpid(rc, &status, 0);
+  ASSERT_EQ(wait_result, rc);
+  ASSERT_TRUE(WIFEXITED(status));
+  ASSERT_EQ(66, WEXITSTATUS(status));
+#endif
+}
+
 TEST(UNISTD_TEST, vfork) {
 #if defined(__BIONIC__)
   pthread_internal_t* self = __get_thread();
@@ -753,22 +769,36 @@
 
 TEST(UNISTD_TEST, pathconf_fpathconf) {
   TemporaryFile tf;
-  long rc = 0L;
+  long l;
+
   // As a file system's block size is always power of 2, the configure values
   // for ALLOC and XFER should be power of 2 as well.
-  rc = pathconf(tf.path, _PC_ALLOC_SIZE_MIN);
-  ASSERT_TRUE(rc > 0 && powerof2(rc));
-  rc = pathconf(tf.path, _PC_REC_MIN_XFER_SIZE);
-  ASSERT_TRUE(rc > 0 && powerof2(rc));
-  rc = pathconf(tf.path, _PC_REC_XFER_ALIGN);
-  ASSERT_TRUE(rc > 0 && powerof2(rc));
+  l = pathconf(tf.path, _PC_ALLOC_SIZE_MIN);
+  ASSERT_TRUE(l > 0 && powerof2(l));
+  l = pathconf(tf.path, _PC_REC_MIN_XFER_SIZE);
+  ASSERT_TRUE(l > 0 && powerof2(l));
+  l = pathconf(tf.path, _PC_REC_XFER_ALIGN);
+  ASSERT_TRUE(l > 0 && powerof2(l));
 
-  rc = fpathconf(tf.fd, _PC_ALLOC_SIZE_MIN);
-  ASSERT_TRUE(rc > 0 && powerof2(rc));
-  rc = fpathconf(tf.fd, _PC_REC_MIN_XFER_SIZE);
-  ASSERT_TRUE(rc > 0 && powerof2(rc));
-  rc = fpathconf(tf.fd, _PC_REC_XFER_ALIGN);
-  ASSERT_TRUE(rc > 0 && powerof2(rc));
+  l = fpathconf(tf.fd, _PC_ALLOC_SIZE_MIN);
+  ASSERT_TRUE(l > 0 && powerof2(l));
+  l = fpathconf(tf.fd, _PC_REC_MIN_XFER_SIZE);
+  ASSERT_TRUE(l > 0 && powerof2(l));
+  l = fpathconf(tf.fd, _PC_REC_XFER_ALIGN);
+  ASSERT_TRUE(l > 0 && powerof2(l));
+
+  // Check that the "I can't answer that, you'll have to try it and see"
+  // cases don't set errno.
+  int names[] = {
+      _PC_ASYNC_IO, _PC_PRIO_IO, _PC_REC_INCR_XFER_SIZE, _PC_REC_MAX_XFER_SIZE, _PC_SYMLINK_MAX,
+      _PC_SYNC_IO,  -1};
+  for (size_t i = 0; names[i] != -1; i++) {
+    errno = 0;
+    ASSERT_EQ(-1, pathconf(tf.path, names[i])) << names[i];
+    ASSERT_ERRNO(0) << names[i];
+    ASSERT_EQ(-1, fpathconf(tf.fd, names[i])) << names[i];
+    ASSERT_ERRNO(0) << names[i];
+  }
 }
 
 TEST(UNISTD_TEST, _POSIX_constants) {
diff --git a/tests/utils.h b/tests/utils.h
index dcb08f5..3c83b73 100644
--- a/tests/utils.h
+++ b/tests/utils.h
@@ -38,6 +38,7 @@
 #endif
 
 #include <atomic>
+#include <iomanip>
 #include <string>
 #include <regex>
 
@@ -253,7 +254,7 @@
     AssertChildExited(pid, expected_exit_status, &error_msg);
     if (expected_output_regex != nullptr) {
       if (!std::regex_search(output_, std::regex(expected_output_regex))) {
-        FAIL() << "regex " << expected_output_regex << " didn't match " << output_;
+        FAIL() << "regex " << std::quoted(expected_output_regex) << " didn't match " << std::quoted(output_);
       }
     }
   }
diff --git a/tests/wchar_test.cpp b/tests/wchar_test.cpp
index 5256b08..387d23b 100644
--- a/tests/wchar_test.cpp
+++ b/tests/wchar_test.cpp
@@ -1075,10 +1075,39 @@
 
   EXPECT_EQ(0, wcwidth(0x0300)); // Combining grave.
   EXPECT_EQ(0, wcwidth(0x20dd)); // Combining enclosing circle.
-  EXPECT_EQ(0, wcwidth(0x00ad)); // Soft hyphen (SHY).
   EXPECT_EQ(0, wcwidth(0x200b)); // Zero width space.
 }
 
+TEST(wchar, wcwidth_non_spacing_special_cases) {
+  if (!have_dl()) return;
+
+  // U+00AD is a soft hyphen, which normally shouldn't be rendered at all.
+  // I think the assumption here is that you elide the soft hyphen character
+  // completely in that case, and never call wcwidth() if you don't want to
+  // render it as an actual hyphen. Whereas if you do want to render it,
+  // you call wcwidth(), and 1 is the right answer. This is what Markus Kuhn's
+  // original https://www.cl.cam.ac.uk/~mgk25/ucs/wcwidth.c did,
+  // and glibc and iOS do the same.
+  // See also: https://en.wikipedia.org/wiki/Soft_hyphen#Text_to_be_formatted_by_the_recipient
+  EXPECT_EQ(1, wcwidth(0x00ad)); // Soft hyphen (SHY).
+
+  // U+115F is the Hangeul choseong filler (for a degenerate composed
+  // character missing an initial consonant (as opposed to one with a
+  // leading ieung). Since the code points for combining jungseong (medial
+  // vowels) and jongseong (trailing consonants) have width 0, the choseong
+  // (initial consonant) has width 2 to cover the entire syllable. So unless
+  // U+115f has width 2, a degenerate composed "syllable" without an initial
+  // consonant or ieung would have a total width of 0, which is silly.
+  // The following sequence is effectively "약" without the leading ieung...
+  EXPECT_EQ(2, wcwidth(0x115f)); // Hangeul choseong filler.
+  EXPECT_EQ(0, wcwidth(0x1163)); // Hangeul jungseong "ya".
+  EXPECT_EQ(0, wcwidth(0x11a8)); // Hangeul jongseong "kiyeok".
+
+  // U+1160, the jungseong filler, has width 0 because it must have been
+  // preceded by either a choseong or choseong filler.
+  EXPECT_EQ(0, wcwidth(0x1160));
+}
+
 TEST(wchar, wcwidth_cjk) {
   if (!have_dl()) return;
 
@@ -1102,8 +1131,10 @@
   if (!have_dl()) return;
 
   EXPECT_EQ(2, wcwidth(0xac00)); // Start of block.
-  EXPECT_EQ(2, wcwidth(0xd7a3)); // End of defined code points in Unicode 7.
-  // Undefined characters at the end of the block have width 1.
+  EXPECT_EQ(2, wcwidth(0xd7a3)); // End of defined code points as of Unicode 15.
+
+  // Undefined characters at the end of the block currently have width 1,
+  // but since they're undefined, we don't test that.
 }
 
 TEST(wchar, wcwidth_kana) {
@@ -1137,11 +1168,21 @@
   EXPECT_EQ(0, wcwidth(0xe0000)); // ...through 0xe0fff.
 }
 
-TEST(wchar, wcwidth_korean_common_non_syllables) {
+TEST(wchar, wcwidth_hangeul_compatibility_jamo) {
   if (!have_dl()) return;
 
-  EXPECT_EQ(2, wcwidth(L'ㅜ')); // Korean "crying" emoticon.
-  EXPECT_EQ(2, wcwidth(L'ㅋ')); // Korean "laughing" emoticon.
+  // These are actually the *compatibility* jamo code points, *not* the regular
+  // jamo code points (U+1100-U+11FF) using a jungseong filler. If you use the
+  // Android IME to type any of these, you get these code points.
+
+  // (Half of) the Korean "crying" emoticon "ㅠㅠ".
+  // Actually U+3160 "Hangeul Letter Yu" from Hangeul Compatibility Jamo.
+  EXPECT_EQ(2, wcwidth(L'ㅠ'));
+  // The two halves of the Korean internet shorthand "ㄱㅅ" (short for 감사).
+  // Actually U+3131 "Hangeul Letter Kiyeok" and U+3145 "Hangeul Letter Sios"
+  // from Hangeul Compatibility Jamo.
+  EXPECT_EQ(2, wcwidth(L'ㄱ'));
+  EXPECT_EQ(2, wcwidth(L'ㅅ'));
 }
 
 TEST(wchar, wcswidth) {
diff --git a/tests/wctype_test.cpp b/tests/wctype_test.cpp
index 0f07956..f4b7a8f 100644
--- a/tests/wctype_test.cpp
+++ b/tests/wctype_test.cpp
@@ -109,6 +109,8 @@
   EXPECT_EQ(wint_t('!'), towlower(L'!'));
   EXPECT_EQ(wint_t('a'), towlower(L'a'));
   EXPECT_EQ(wint_t('a'), towlower(L'A'));
+  EXPECT_EQ(wint_t('z'), towlower(L'z'));
+  EXPECT_EQ(wint_t('z'), towlower(L'Z'));
   if (have_dl()) {
     EXPECT_EQ(wint_t(L'ç'), towlower(L'ç'));
     EXPECT_EQ(wint_t(L'ç'), towlower(L'Ç'));
@@ -125,6 +127,8 @@
   EXPECT_EQ(wint_t('!'), towlower_l(L'!', l.l));
   EXPECT_EQ(wint_t('a'), towlower_l(L'a', l.l));
   EXPECT_EQ(wint_t('a'), towlower_l(L'A', l.l));
+  EXPECT_EQ(wint_t('z'), towlower_l(L'z', l.l));
+  EXPECT_EQ(wint_t('z'), towlower_l(L'Z', l.l));
   if (have_dl()) {
     EXPECT_EQ(wint_t(L'ç'), towlower_l(L'ç', l.l));
     EXPECT_EQ(wint_t(L'ç'), towlower_l(L'Ç', l.l));
@@ -140,6 +144,8 @@
   EXPECT_EQ(wint_t('!'), towupper(L'!'));
   EXPECT_EQ(wint_t('A'), towupper(L'a'));
   EXPECT_EQ(wint_t('A'), towupper(L'A'));
+  EXPECT_EQ(wint_t('Z'), towupper(L'z'));
+  EXPECT_EQ(wint_t('Z'), towupper(L'Z'));
   if (have_dl()) {
     EXPECT_EQ(wint_t(L'Ç'), towupper(L'ç'));
     EXPECT_EQ(wint_t(L'Ç'), towupper(L'Ç'));
@@ -156,6 +162,8 @@
   EXPECT_EQ(wint_t('!'), towupper_l(L'!', l.l));
   EXPECT_EQ(wint_t('A'), towupper_l(L'a', l.l));
   EXPECT_EQ(wint_t('A'), towupper_l(L'A', l.l));
+  EXPECT_EQ(wint_t('Z'), towupper_l(L'z', l.l));
+  EXPECT_EQ(wint_t('Z'), towupper_l(L'Z', l.l));
   if (have_dl()) {
     EXPECT_EQ(wint_t(L'Ç'), towupper_l(L'ç', l.l));
     EXPECT_EQ(wint_t(L'Ç'), towupper_l(L'Ç', l.l));
@@ -218,34 +226,64 @@
   EXPECT_EQ(0, iswctype_l(WEOF, wctype_l("alnum", l.l), l.l));
 }
 
-TEST(wctype, towctrans) {
+TEST(wctype, wctrans) {
   EXPECT_TRUE(wctrans("tolower") != nullptr);
   EXPECT_TRUE(wctrans("toupper") != nullptr);
 
+  errno = 0;
   EXPECT_TRUE(wctrans("monkeys") == nullptr);
-}
-
-TEST(wctype, towctrans_l) {
-  UtfLocale l;
-  EXPECT_TRUE(wctrans_l("tolower", l.l) != nullptr);
-  EXPECT_TRUE(wctrans_l("toupper", l.l) != nullptr);
-
-  EXPECT_TRUE(wctrans_l("monkeys", l.l) == nullptr);
-}
-
-TEST(wctype, wctrans) {
-  EXPECT_EQ(wint_t('a'), towctrans(L'A', wctrans("tolower")));
-  EXPECT_EQ(WEOF, towctrans(WEOF, wctrans("tolower")));
-
-  EXPECT_EQ(wint_t('A'), towctrans(L'a', wctrans("toupper")));
-  EXPECT_EQ(WEOF, towctrans(WEOF, wctrans("toupper")));
+  #if defined(__BIONIC__)
+  // Android/FreeBSD/iOS set errno, but musl/glibc don't.
+  EXPECT_ERRNO(EINVAL);
+  #endif
 }
 
 TEST(wctype, wctrans_l) {
   UtfLocale l;
-  EXPECT_EQ(wint_t('a'), towctrans_l(L'A', wctrans_l("tolower", l.l), l.l));
-  EXPECT_EQ(WEOF, towctrans_l(WEOF, wctrans_l("tolower", l.l), l.l));
+  EXPECT_TRUE(wctrans_l("tolower", l.l) != nullptr);
+  EXPECT_TRUE(wctrans_l("toupper", l.l) != nullptr);
 
-  EXPECT_EQ(wint_t('A'), towctrans_l(L'a', wctrans_l("toupper", l.l), l.l));
-  EXPECT_EQ(WEOF, towctrans_l(WEOF, wctrans_l("toupper", l.l), l.l));
+  errno = 0;
+  EXPECT_TRUE(wctrans_l("monkeys", l.l) == nullptr);
+  #if defined(__BIONIC__)
+  // Android/FreeBSD/iOS set errno, but musl/glibc don't.
+  EXPECT_ERRNO(EINVAL);
+  #endif
+}
+
+TEST(wctype, towctrans) {
+  wctrans_t lower = wctrans("tolower");
+  EXPECT_EQ(wint_t('a'), towctrans(L'A', lower));
+  EXPECT_EQ(WEOF, towctrans(WEOF, lower));
+
+  wctrans_t upper = wctrans("toupper");
+  EXPECT_EQ(wint_t('A'), towctrans(L'a', upper));
+  EXPECT_EQ(WEOF, towctrans(WEOF, upper));
+
+  wctrans_t invalid = wctrans("monkeys");
+  errno = 0;
+  EXPECT_EQ(wint_t('a'), towctrans(L'a', invalid));
+  #if defined(__BIONIC__)
+  // Android/FreeBSD/iOS set errno, but musl/glibc don't.
+  EXPECT_ERRNO(EINVAL);
+  #endif
+}
+
+TEST(wctype, towctrans_l) {
+  UtfLocale l;
+  wctrans_t lower = wctrans_l("tolower", l.l);
+  EXPECT_EQ(wint_t('a'), towctrans_l(L'A', lower, l.l));
+  EXPECT_EQ(WEOF, towctrans_l(WEOF, lower, l.l));
+
+  wctrans_t upper = wctrans_l("toupper", l.l);
+  EXPECT_EQ(wint_t('A'), towctrans_l(L'a', upper, l.l));
+  EXPECT_EQ(WEOF, towctrans_l(WEOF, upper, l.l));
+
+  wctrans_t invalid = wctrans_l("monkeys", l.l);
+  errno = 0;
+  EXPECT_EQ(wint_t('a'), towctrans_l(L'a', invalid, l.l));
+  #if defined(__BIONIC__)
+  // Android/FreeBSD/iOS set errno, but musl/glibc don't.
+  EXPECT_ERRNO(EINVAL);
+  #endif
 }
diff --git a/tools/versioner/src/DeclarationDatabase.cpp b/tools/versioner/src/DeclarationDatabase.cpp
index a029c3b..9794286 100644
--- a/tools/versioner/src/DeclarationDatabase.cpp
+++ b/tools/versioner/src/DeclarationDatabase.cpp
@@ -103,7 +103,7 @@
     }
 
     std::string declaration_name = getDeclName(named_decl);
-    bool is_extern = named_decl->getFormalLinkage() == ExternalLinkage;
+    bool is_extern = named_decl->getFormalLinkage() == Linkage::External;
     bool is_definition = false;
     bool no_guard = false;
     bool fortify_inline = false;
diff --git a/tools/versioner/src/Driver.cpp b/tools/versioner/src/Driver.cpp
index 24dc5ec..79672ac 100644
--- a/tools/versioner/src/Driver.cpp
+++ b/tools/versioner/src/Driver.cpp
@@ -42,7 +42,7 @@
 #include <llvm/ADT/SmallVector.h>
 #include <llvm/ADT/StringRef.h>
 #include <llvm/Option/Option.h>
-#include <llvm/Support/Host.h>
+#include <llvm/TargetParser/Host.h>
 #include <llvm/Support/VirtualFileSystem.h>
 
 #include "Arch.h"
diff --git a/tools/versioner/src/Preprocessor.cpp b/tools/versioner/src/Preprocessor.cpp
index 47b9017..74d5ba0 100644
--- a/tools/versioner/src/Preprocessor.cpp
+++ b/tools/versioner/src/Preprocessor.cpp
@@ -448,7 +448,7 @@
 
   while (FTSENT* ent = fts_read(fts.get())) {
     llvm::StringRef path = ent->fts_path;
-    if (!path.startswith(src_dir)) {
+    if (!path.starts_with(src_dir)) {
       err(1, "path '%s' doesn't start with source dir '%s'", ent->fts_path, src_dir.c_str());
     }
 
@@ -489,7 +489,7 @@
     // TODO: Merge adjacent non-identical guards.
     mergeGuards(file_lines[file_path.str()], guard_map);
 
-    if (!file_path.startswith(src_dir)) {
+    if (!file_path.starts_with(src_dir)) {
       errx(1, "input file %s is not in %s\n", file_path.str().c_str(), src_dir.c_str());
     }
 
diff --git a/tools/versioner/src/Utils.cpp b/tools/versioner/src/Utils.cpp
index dc6b5dd..d2bb1a8 100644
--- a/tools/versioner/src/Utils.cpp
+++ b/tools/versioner/src/Utils.cpp
@@ -83,7 +83,7 @@
 }
 
 llvm::StringRef StripPrefix(llvm::StringRef string, llvm::StringRef prefix) {
-  if (string.startswith(prefix)) {
+  if (string.starts_with(prefix)) {
     return string.drop_front(prefix.size());
   }
   return string;
diff --git a/tools/versioner/src/versioner.cpp b/tools/versioner/src/versioner.cpp
index 5afa00b..37c8bac 100644
--- a/tools/versioner/src/versioner.cpp
+++ b/tools/versioner/src/versioner.cpp
@@ -142,11 +142,11 @@
 
   auto new_end = std::remove_if(headers.begin(), headers.end(), [&arch](llvm::StringRef header) {
     for (const auto& it : ignored_headers) {
-      if (it.second.find(arch) == it.second.end()) {
+      if (!it.second.contains(arch)) {
         continue;
       }
 
-      if (header.endswith("/" + it.first)) {
+      if (header.ends_with("/" + it.first)) {
         return true;
       }
     }