Merge "Specify version for aidl_interface explicitly"
diff --git a/cmds/atrace/atrace.rc b/cmds/atrace/atrace.rc
index 994375b..db3a314 100644
--- a/cmds/atrace/atrace.rc
+++ b/cmds/atrace/atrace.rc
@@ -220,6 +220,67 @@
     chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu15/trace
     chmod 0666 /sys/kernel/tracing/per_cpu/cpu15/trace
 
+on post-fs-data
+# Create MM Events Tracing Instance for Kmem Activity Trigger
+    mkdir /sys/kernel/debug/tracing/instances/mm_events 0755 system system
+    mkdir /sys/kernel/tracing/instances/mm_events 0755 system system
+
+# Read and set per CPU buffer size
+    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/buffer_size_kb
+    chmod 0666 /sys/kernel/tracing/instances/mm_events/buffer_size_kb
+
+# Read and enable tracing
+    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/tracing_on
+    chmod 0666 /sys/kernel/tracing/instances/mm_events/tracing_on
+
+# Read and truncate kernel trace
+    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/trace
+    chmod 0666 /sys/kernel/tracing/instances/mm_events/trace
+
+# Enable trace events
+    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/events/vmscan/mm_vmscan_direct_reclaim_begin/enable
+    chmod 0666 /sys/kernel/tracing/instances/mm_events/events/vmscan/mm_vmscan_direct_reclaim_begin/enable
+    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/events/vmscan/mm_vmscan_kswapd_wake/enable
+    chmod 0666 /sys/kernel/tracing/instances/mm_events/events/vmscan/mm_vmscan_kswapd_wake/enable
+    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/events/compaction/mm_compaction_begin/enable
+    chmod 0666 /sys/kernel/tracing/instances/mm_events/events/compaction/mm_compaction_begin/enable
+
+# Read and clear per-CPU raw kernel trace
+# Cannot use wildcards in .rc files. Update this if there is a phone with
+# more CPUs.
+    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu0/trace
+    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu0/trace
+    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu1/trace
+    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu1/trace
+    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu2/trace
+    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu2/trace
+    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu3/trace
+    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu3/trace
+    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu4/trace
+    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu4/trace
+    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu5/trace
+    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu5/trace
+    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu6/trace
+    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu6/trace
+    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu7/trace
+    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu7/trace
+    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu8/trace
+    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu8/trace
+    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu9/trace
+    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu9/trace
+    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu10/trace
+    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu10/trace
+    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu11/trace
+    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu11/trace
+    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu12/trace
+    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu12/trace
+    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu13/trace
+    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu13/trace
+    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu14/trace
+    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu14/trace
+    chmod 0666 /sys/kernel/debug/tracing/instances/mm_events/per_cpu/cpu15/trace
+    chmod 0666 /sys/kernel/tracing/instances/mm_events/per_cpu/cpu15/trace
+
 on property:persist.debug.atrace.boottrace=1
     start boottrace
 
diff --git a/cmds/dumpstate/Android.bp b/cmds/dumpstate/Android.bp
index 80d14ac..34e9a85 100644
--- a/cmds/dumpstate/Android.bp
+++ b/cmds/dumpstate/Android.bp
@@ -112,6 +112,7 @@
     ],
     required: [
         "atrace",
+        "dmabuf_dump",
         "ip",
         "iptables",
         "librank",
diff --git a/cmds/dumpstate/dumpstate.cpp b/cmds/dumpstate/dumpstate.cpp
index fbb0a18..9e73dcc 100644
--- a/cmds/dumpstate/dumpstate.cpp
+++ b/cmds/dumpstate/dumpstate.cpp
@@ -1845,10 +1845,8 @@
     RunCommand("IOTOP", {"iotop", "-n", "1", "-m", "100"});
 
     // Gather shared memory buffer info if the product implements it
-    struct stat st;
-    if (!stat("/product/bin/dmabuf_dump", &st)) {
-        RunCommand("Dmabuf dump", {"/product/bin/dmabuf_dump"});
-    }
+    RunCommand("Dmabuf dump", {"dmabuf_dump"});
+    RunCommand("Dmabuf per-buffer/per-exporter/per-device stats", {"dmabuf_dump", "-b"});
 
     DumpFile("PSI cpu", "/proc/pressure/cpu");
     DumpFile("PSI memory", "/proc/pressure/memory");
diff --git a/cmds/dumpstate/tests/dumpstate_smoke_test.cpp b/cmds/dumpstate/tests/dumpstate_smoke_test.cpp
index 0e366cb..c62d302 100644
--- a/cmds/dumpstate/tests/dumpstate_smoke_test.cpp
+++ b/cmds/dumpstate/tests/dumpstate_smoke_test.cpp
@@ -310,8 +310,12 @@
     // FS/proc/*/mountinfo size > 0
     FileExists("FS/proc/1/mountinfo", 0U, 100000U);
 
-    // FS/data/misc/profiles/cur/0/*/primary.prof size > 0
-    FileExists("FS/data/misc/profiles/cur/0/com.android.phone/primary.prof", 0U, 100000U);
+    // FS/data/misc/profiles/cur/0/*/primary.prof should exist. Also, since dumpstate only adds
+    // profiles to the zip in the non-user build, a build checking is necessary here.
+    if (!PropertiesHelper::IsUserBuild()) {
+        ZipEntry entry;
+        GetEntry(handle, "FS/data/misc/profiles/cur/0/com.android.phone/primary.prof", &entry);
+    }
 }
 
 /**
diff --git a/cmds/installd/Android.bp b/cmds/installd/Android.bp
index 523115f..7085f51 100644
--- a/cmds/installd/Android.bp
+++ b/cmds/installd/Android.bp
@@ -38,6 +38,9 @@
         "libutils",
         "server_configurable_flags",
     ],
+    export_shared_lib_headers: [
+        "libbinder",
+    ],
 
     product_variables: {
         arc: {
diff --git a/cmds/installd/dexopt.cpp b/cmds/installd/dexopt.cpp
index 65fc46e..4dfd1d0 100644
--- a/cmds/installd/dexopt.cpp
+++ b/cmds/installd/dexopt.cpp
@@ -1130,23 +1130,6 @@
     return true;
 }
 
-// Updates the access times of out_oat_path based on those from apk_path.
-void update_out_oat_access_times(const char* apk_path, const char* out_oat_path) {
-    struct stat input_stat;
-    memset(&input_stat, 0, sizeof(input_stat));
-    if (stat(apk_path, &input_stat) != 0) {
-        PLOG(ERROR) << "Could not stat " << apk_path << " during dexopt";
-        return;
-    }
-
-    struct utimbuf ut;
-    ut.actime = input_stat.st_atime;
-    ut.modtime = input_stat.st_mtime;
-    if (utime(out_oat_path, &ut) != 0) {
-        PLOG(WARNING) << "Could not update access times for " << apk_path << " during dexopt";
-    }
-}
-
 // Runs (execv) dexoptanalyzer on the given arguments.
 // The analyzer will check if the dex_file needs to be (re)compiled to match the compiler_filter.
 // If this is for a profile guided compilation, profile_was_updated will tell whether or not
@@ -1843,8 +1826,6 @@
         }
     }
 
-    update_out_oat_access_times(dex_path, out_oat.path().c_str());
-
     // We've been successful, don't delete output.
     out_oat.DisableCleanup();
     out_vdex.DisableCleanup();
diff --git a/cmds/lshal/DebugCommand.cpp b/cmds/lshal/DebugCommand.cpp
index 72958bd..ccf1ab1 100644
--- a/cmds/lshal/DebugCommand.cpp
+++ b/cmds/lshal/DebugCommand.cpp
@@ -28,7 +28,7 @@
 }
 
 std::string DebugCommand::getSimpleDescription() const {
-    return "Debug a specified HAL.";
+    return "Debug a specified HIDL HAL.";
 }
 
 Status DebugCommand::parseArgs(const Arg &arg) {
@@ -78,7 +78,7 @@
             "debug:\n"
             "    lshal debug [-E] <interface> [options [options [...]]] \n"
             "        Print debug information of a specified interface.\n"
-            "        -E: excludes debug output if HAL is actually a subclass.\n"
+            "        -E: excludes debug output if HIDL HAL is actually a subclass.\n"
             "        <interface>: Format is `android.hardware.foo@1.0::IFoo/default`.\n"
             "            If instance name is missing `default` is used.\n"
             "        options: space separated options to IBase::debug.\n";
diff --git a/cmds/lshal/ListCommand.cpp b/cmds/lshal/ListCommand.cpp
index 22268ac..d5110f6 100644
--- a/cmds/lshal/ListCommand.cpp
+++ b/cmds/lshal/ListCommand.cpp
@@ -81,7 +81,7 @@
     return "list";
 }
 std::string ListCommand::getSimpleDescription() const {
-    return "List HALs.";
+    return "List HIDL HALs.";
 }
 
 std::string ListCommand::parseCmdline(pid_t pid) const {
@@ -295,21 +295,21 @@
     }
 
     mServicesTable.setDescription(
-            "| All binderized services (registered with hwservicemanager)");
+            "| All HIDL binderized services (registered with hwservicemanager)");
     mPassthroughRefTable.setDescription(
-            "| All interfaces that getService() has ever returned as a passthrough interface;\n"
+            "| All HIDL interfaces getService() has ever returned as a passthrough interface;\n"
             "| PIDs / processes shown below might be inaccurate because the process\n"
             "| might have relinquished the interface or might have died.\n"
             "| The Server / Server CMD column can be ignored.\n"
             "| The Clients / Clients CMD column shows all process that have ever dlopen'ed \n"
             "| the library and successfully fetched the passthrough implementation.");
     mImplementationsTable.setDescription(
-            "| All available passthrough implementations (all -impl.so files).\n"
+            "| All available HIDL passthrough implementations (all -impl.so files).\n"
             "| These may return subclasses through their respective HIDL_FETCH_I* functions.");
     mManifestHalsTable.setDescription(
-            "| All HALs that are in VINTF manifest.");
+            "| All HIDL HALs that are in VINTF manifest.");
     mLazyHalsTable.setDescription(
-            "| All HALs that are declared in VINTF manifest:\n"
+            "| All HIDL HALs that are declared in VINTF manifest:\n"
             "|    - as hwbinder HALs but are not registered to hwservicemanager, and\n"
             "|    - as hwbinder/passthrough HALs with no implementation.");
 }
@@ -903,11 +903,11 @@
         thiz->mSelectedColumns.push_back(TableColumnType::VINTF);
         return OK;
     }, "print VINTF info. This column contains a comma-separated list of:\n"
-       "    - DM: if the HAL is in the device manifest\n"
-       "    - DC: if the HAL is in the device compatibility matrix\n"
-       "    - FM: if the HAL is in the framework manifest\n"
-       "    - FC: if the HAL is in the framework compatibility matrix\n"
-       "    - X: if the HAL is in none of the above lists"});
+       "    - DM: if the HIDL HAL is in the device manifest\n"
+       "    - DC: if the HIDL HAL is in the device compatibility matrix\n"
+       "    - FM: if the HIDL HAL is in the framework manifest\n"
+       "    - FC: if the HIDL HAL is in the framework compatibility matrix\n"
+       "    - X: if the HIDL HAL is in none of the above lists"});
     mOptions.push_back({'S', "service-status", no_argument, v++, [](ListCommand* thiz, const char*) {
         thiz->mSelectedColumns.push_back(TableColumnType::SERVICE_STATUS);
         return OK;
diff --git a/cmds/lshal/Lshal.cpp b/cmds/lshal/Lshal.cpp
index 99cb93a..bc99f4d 100644
--- a/cmds/lshal/Lshal.cpp
+++ b/cmds/lshal/Lshal.cpp
@@ -59,7 +59,8 @@
 }
 
 void Lshal::usage() {
-    err() << "lshal: List and debug HALs." << std::endl << std::endl
+    err() << "lshal: List and debug HIDL HALs." << std::endl
+          << "   (for AIDL HALs, see `dumpsys`)" << std::endl << std::endl
           << "commands:" << std::endl;
 
     size_t nameMaxLength = 0;
diff --git a/cmds/lshal/WaitCommand.cpp b/cmds/lshal/WaitCommand.cpp
index 65b41b9..437a66a 100644
--- a/cmds/lshal/WaitCommand.cpp
+++ b/cmds/lshal/WaitCommand.cpp
@@ -29,7 +29,7 @@
 }
 
 std::string WaitCommand::getSimpleDescription() const {
-    return "Wait for HAL to start if it is not already started.";
+    return "Wait for HIDL HAL to start if it is not already started.";
 }
 
 Status WaitCommand::parseArgs(const Arg &arg) {
diff --git a/cmds/servicemanager/ServiceManager.cpp b/cmds/servicemanager/ServiceManager.cpp
index b21010d..0dbab4e 100644
--- a/cmds/servicemanager/ServiceManager.cpp
+++ b/cmds/servicemanager/ServiceManager.cpp
@@ -623,4 +623,21 @@
     return Status::ok();
 }
 
+Status ServiceManager::getServiceDebugInfo(std::vector<ServiceDebugInfo>* outReturn) {
+    if (!mAccess->canList(mAccess->getCallingContext())) {
+        return Status::fromExceptionCode(Status::EX_SECURITY);
+    }
+
+    outReturn->reserve(mNameToService.size());
+    for (auto const& [name, service] : mNameToService) {
+        ServiceDebugInfo info;
+        info.name = name;
+        info.debugPid = service.debugPid;
+
+        outReturn->push_back(std::move(info));
+    }
+
+    return Status::ok();
+}
+
 }  // namespace android
diff --git a/cmds/servicemanager/ServiceManager.h b/cmds/servicemanager/ServiceManager.h
index 9f43eb4..c089115 100644
--- a/cmds/servicemanager/ServiceManager.h
+++ b/cmds/servicemanager/ServiceManager.h
@@ -26,6 +26,7 @@
 
 using os::IClientCallback;
 using os::IServiceCallback;
+using os::ServiceDebugInfo;
 
 class ServiceManager : public os::BnServiceManager, public IBinder::DeathRecipient {
 public:
@@ -48,6 +49,7 @@
     binder::Status registerClientCallback(const std::string& name, const sp<IBinder>& service,
                                           const sp<IClientCallback>& cb) override;
     binder::Status tryUnregisterService(const std::string& name, const sp<IBinder>& binder) override;
+    binder::Status getServiceDebugInfo(std::vector<ServiceDebugInfo>* outReturn) override;
     void binderDied(const wp<IBinder>& who) override;
     void handleClientCallbacks();
 
diff --git a/data/etc/android.hardware.keystore.limited_use_key.xml b/data/etc/android.hardware.keystore.limited_use_key.xml
new file mode 100644
index 0000000..5217086
--- /dev/null
+++ b/data/etc/android.hardware.keystore.limited_use_key.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2021 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.
+-->
+
+<!-- Feature for devices with KeyMint that can enforce limited use key
+     in hardware with any max usage count (including count equals to 1). -->
+<permissions>
+    <feature name="android.hardware.keystore.limited_use_key" />
+</permissions>
\ No newline at end of file
diff --git a/data/etc/android.hardware.keystore.single_use_key.xml b/data/etc/android.hardware.keystore.single_use_key.xml
new file mode 100644
index 0000000..40e80aa
--- /dev/null
+++ b/data/etc/android.hardware.keystore.single_use_key.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2021 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.
+-->
+
+<!-- Feature for devices with KeyMint that only can enforce limited use key
+     in hardware with max usage count equals to 1. -->
+<permissions>
+    <feature name="android.hardware.keystore.single_use_key" />
+</permissions>
\ No newline at end of file
diff --git a/data/etc/android.hardware.telephony.ims.singlereg.xml b/data/etc/android.hardware.telephony.ims.singlereg.xml
new file mode 100644
index 0000000..9a6cec0
--- /dev/null
+++ b/data/etc/android.hardware.telephony.ims.singlereg.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2021 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.
+-->
+
+<!-- Feature for devices that have an IMS service that supports all IMS
+     applications using a single IMS registration. -->
+<permissions>
+  <feature name="android.hardware.telephony.ims" />
+  <feature name="android.hardware.telephony.ims.singlereg" />
+</permissions>
diff --git a/include/android/bitmap.h b/include/android/bitmap.h
index f195399..2362c9e 100644
--- a/include/android/bitmap.h
+++ b/include/android/bitmap.h
@@ -28,8 +28,23 @@
 
 #include <stdbool.h>
 #include <stdint.h>
+#include <stddef.h>
 #include <jni.h>
 
+#ifndef __ANDROID__
+    // Value copied from 'bionic/libc/include/android/api-level.h' which is not available on
+    // non Android systems. It is set to 10000 which is same as __ANDROID_API_FUTURE__ value.
+    #ifndef __ANDROID_API__
+        #define __ANDROID_API__ 10000
+    #endif
+
+    // Value copied from 'bionic/libc/include/android/versioning.h' which is not available on
+    // non Android systems
+    #ifndef __INTRODUCED_IN
+        #define __INTRODUCED_IN(api_level)
+    #endif
+#endif
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -117,8 +132,6 @@
 int AndroidBitmap_getInfo(JNIEnv* env, jobject jbitmap,
                           AndroidBitmapInfo* info);
 
-#if __ANDROID_API__ >= 30
-
 /**
  * Given a java bitmap object, return its {@link ADataSpace}.
  *
@@ -130,8 +143,6 @@
  */
 int32_t AndroidBitmap_getDataSpace(JNIEnv* env, jobject jbitmap)  __INTRODUCED_IN(30);
 
-#endif // __ANDROID_API__ >= 30
-
 /**
  * Given a java bitmap object, attempt to lock the pixel address.
  * Locking will ensure that the memory for the pixels will not move
@@ -152,8 +163,6 @@
  */
 int AndroidBitmap_unlockPixels(JNIEnv* env, jobject jbitmap);
 
-#if __ANDROID_API__ >= 30
-
 // Note: these values match android.graphics.Bitmap#compressFormat.
 
 /**
@@ -254,8 +263,6 @@
 int AndroidBitmap_getHardwareBuffer(JNIEnv* env, jobject bitmap,
         AHardwareBuffer** outBuffer) __INTRODUCED_IN(30);
 
-#endif // __ANDROID_API__ >= 30
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/include/android/choreographer.h b/include/android/choreographer.h
index e9f559c..8039bb0 100644
--- a/include/android/choreographer.h
+++ b/include/android/choreographer.h
@@ -61,8 +61,6 @@
  */
 typedef void (*AChoreographer_refreshRateCallback)(int64_t vsyncPeriodNanos, void* data);
 
-#if __ANDROID_API__ >= 24
-
 /**
  * Get the AChoreographer instance for the current thread. This must be called
  * on an ALooper thread.
@@ -86,10 +84,6 @@
                                              long delayMillis) __INTRODUCED_IN(24)
         __DEPRECATED_IN(29);
 
-#endif /* __ANDROID_API__ >= 24 */
-
-#if __ANDROID_API__ >= 29
-
 /**
  * Power a callback to be run on the next frame.  The data pointer provided will
  * be passed to the callback function when it's called.
@@ -111,10 +105,6 @@
                                                AChoreographer_frameCallback64 callback, void* data,
                                                uint32_t delayMillis) __INTRODUCED_IN(29);
 
-#endif /* __ANDROID_API__ >= 29 */
-
-#if __ANDROID_API__ >= 30
-
 /**
  * Registers a callback to be run when the display refresh rate changes. The
  * data pointer provided will be passed to the callback function when it's
@@ -160,7 +150,6 @@
 void AChoreographer_unregisterRefreshRateCallback(AChoreographer* choreographer,
                                                   AChoreographer_refreshRateCallback, void* data)
         __INTRODUCED_IN(30);
-#endif /* __ANDROID_API__ >= 30 */
 
 __END_DECLS
 
diff --git a/include/android/configuration.h b/include/android/configuration.h
index ccf3e59..88019ae 100644
--- a/include/android/configuration.h
+++ b/include/android/configuration.h
@@ -645,14 +645,12 @@
  */
 void AConfiguration_setScreenLong(AConfiguration* config, int32_t screenLong);
 
-#if __ANDROID_API__ >= 30
 /**
  * Return the current ACONFIGURATION_SCREENROUND_* set in the configuration.
  *
  * Available since API level 30.
  */
 int32_t AConfiguration_getScreenRound(AConfiguration* config) __INTRODUCED_IN(30);
-#endif
 
 /**
  * Set the current screen round in the configuration.
@@ -712,7 +710,6 @@
  */
 void AConfiguration_setSmallestScreenWidthDp(AConfiguration* config, int32_t value);
 
-#if __ANDROID_API__ >= 17
 /**
  * Return the configuration's layout direction, or
  * ACONFIGURATION_LAYOUTDIR_ANY if not set.
@@ -727,7 +724,6 @@
  * Available since API level 17.
  */
 void AConfiguration_setLayoutDirection(AConfiguration* config, int32_t value) __INTRODUCED_IN(17);
-#endif /* __ANDROID_API__ >= 17 */
 
 /**
  * Perform a diff between two configurations.  Returns a bit mask of
diff --git a/include/android/font.h b/include/android/font.h
index 1618096..a172618 100644
--- a/include/android/font.h
+++ b/include/android/font.h
@@ -51,8 +51,6 @@
 
 __BEGIN_DECLS
 
-#if __ANDROID_API__ >= 29
-
 enum {
     /** The minimum value fot the font weight value. */
     AFONT_WEIGHT_MIN = 0,
@@ -297,8 +295,6 @@
 float AFont_getAxisValue(const AFont* _Nonnull font, uint32_t axisIndex)
       __INTRODUCED_IN(29);
 
-#endif // __ANDROID_API__ >= 29
-
 __END_DECLS
 
 #endif // ANDROID_FONT_H
diff --git a/include/android/font_matcher.h b/include/android/font_matcher.h
index d4bd892..49e478c 100644
--- a/include/android/font_matcher.h
+++ b/include/android/font_matcher.h
@@ -97,8 +97,6 @@
 
 __BEGIN_DECLS
 
-#if __ANDROID_API__ >= 29
-
 enum {
     /** A family variant value for the system default variant. */
     AFAMILY_VARIANT_DEFAULT = 0,
@@ -217,8 +215,6 @@
         const uint32_t textLength,
         uint32_t* _Nullable runLengthOut) __INTRODUCED_IN(29);
 
-#endif // __ANDROID_API__ >= 29
-
 __END_DECLS
 
 #endif // ANDROID_FONT_MATCHER_H
diff --git a/include/android/imagedecoder.h b/include/android/imagedecoder.h
index d7e6e41..48d217f 100644
--- a/include/android/imagedecoder.h
+++ b/include/android/imagedecoder.h
@@ -51,14 +51,26 @@
 #include <android/rect.h>
 #include <stdint.h>
 
+#ifndef __ANDROID__
+    // Value copied from 'bionic/libc/include/android/api-level.h' which is not available on
+    // non Android systems. It is set to 10000 which is same as __ANDROID_API_FUTURE__ value.
+    #ifndef __ANDROID_API__
+        #define __ANDROID_API__ 10000
+    #endif
+
+    // Value copied from 'bionic/libc/include/android/versioning.h' which is not available on
+    // non Android systems
+    #ifndef __INTRODUCED_IN
+        #define __INTRODUCED_IN(api_level)
+    #endif
+#endif
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 struct AAsset;
 
-#if __ANDROID_API__ >= 30
-
 /**
  *  {@link AImageDecoder} functions result code. Many functions will return one of these
  *  to indicate success ({@link ANDROID_IMAGE_DECODER_SUCCESS}) or the reason
@@ -527,8 +539,6 @@
                               void* pixels, size_t stride,
                               size_t size) __INTRODUCED_IN(30);
 
-#endif // __ANDROID_API__ >= 30
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/include/android/multinetwork.h b/include/android/multinetwork.h
index c6d1c94..424299d 100644
--- a/include/android/multinetwork.h
+++ b/include/android/multinetwork.h
@@ -60,8 +60,6 @@
  * on failure with an appropriate errno value set.
  */
 
-#if __ANDROID_API__ >= 23
-
 /**
  * Set the network to be used by the given socket file descriptor.
  *
@@ -111,10 +109,6 @@
         const char *node, const char *service,
         const struct addrinfo *hints, struct addrinfo **res) __INTRODUCED_IN(23);
 
-#endif /* __ANDROID_API__ >= 23 */
-
-#if __ANDROID_API__ >= 29
-
 /**
  * Possible values of the flags argument to android_res_nsend and android_res_nquery.
  * Values are ORed together.
@@ -187,8 +181,6 @@
  */
 void android_res_cancel(int nsend_fd) __INTRODUCED_IN(29);
 
-#endif /* __ANDROID_API__ >= 29 */
-
 __END_DECLS
 
 #endif  // ANDROID_MULTINETWORK_H
diff --git a/include/android/native_window_jni.h b/include/android/native_window_jni.h
index 3a77ffe..071ec79 100644
--- a/include/android/native_window_jni.h
+++ b/include/android/native_window_jni.h
@@ -44,7 +44,6 @@
  */
 ANativeWindow* ANativeWindow_fromSurface(JNIEnv* env, jobject surface);
 
-#if __ANDROID_API__ >= 26
 /**
  * Return a Java Surface object derived from the ANativeWindow, for interacting
  * with it through Java code. The returned Java object acquires a reference on
@@ -55,7 +54,6 @@
  * Available since API level 26.
  */
 jobject ANativeWindow_toSurface(JNIEnv* env, ANativeWindow* window) __INTRODUCED_IN(26);
-#endif
 
 #ifdef __cplusplus
 };
diff --git a/include/android/sensor.h b/include/android/sensor.h
index eb40779..6447844 100644
--- a/include/android/sensor.h
+++ b/include/android/sensor.h
@@ -52,6 +52,13 @@
 #include <math.h>
 #include <stdint.h>
 
+#if !defined(__INTRODUCED_IN)
+#define __INTRODUCED_IN(__api_level) /* nothing */
+#endif
+#if !defined(__DEPRECATED_IN)
+#define __DEPRECATED_IN(__api_level) __attribute__((__deprecated__))
+#endif
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -553,13 +560,8 @@
  *     ASensorManager* sensorManager = ASensorManager_getInstance();
  *
  */
-#if __ANDROID_API__ >= 26
-__attribute__ ((deprecated)) ASensorManager* ASensorManager_getInstance();
-#else
-ASensorManager* ASensorManager_getInstance();
-#endif
+ASensorManager* ASensorManager_getInstance() __DEPRECATED_IN(26);
 
-#if __ANDROID_API__ >= 26
 /**
  * Get a reference to the sensor manager. ASensorManager is a singleton
  * per package as different packages may have access to different sensors.
@@ -571,7 +573,6 @@
  * Available since API level 26.
  */
 ASensorManager* ASensorManager_getInstanceForPackage(const char* packageName) __INTRODUCED_IN(26);
-#endif
 
 /**
  * Returns the list of available sensors.
@@ -584,7 +585,6 @@
  */
 ASensor const* ASensorManager_getDefaultSensor(ASensorManager* manager, int type);
 
-#if __ANDROID_API__ >= 21
 /**
  * Returns the default sensor with the given type and wakeUp properties or NULL if no sensor
  * of this type and wakeUp properties exists.
@@ -592,7 +592,6 @@
  * Available since API level 21.
  */
 ASensor const* ASensorManager_getDefaultSensorEx(ASensorManager* manager, int type, bool wakeUp) __INTRODUCED_IN(21);
-#endif
 
 /**
  * Creates a new sensor event queue and associate it with a looper.
@@ -609,7 +608,6 @@
  */
 int ASensorManager_destroyEventQueue(ASensorManager* manager, ASensorEventQueue* queue);
 
-#if __ANDROID_API__ >= 26
 /**
  * Create direct channel based on shared memory
  *
@@ -706,7 +704,6 @@
  */
 int ASensorManager_configureDirectReport(ASensorManager* manager,
         ASensor const* sensor, int channelId, int rate) __INTRODUCED_IN(26);
-#endif /* __ANDROID_API__ >= 26 */
 
 /*****************************************************************************/
 
@@ -795,7 +792,6 @@
  */
 ssize_t ASensorEventQueue_getEvents(ASensorEventQueue* queue, ASensorEvent* events, size_t count);
 
-#if __ANDROID_API__ >= 29
 /**
  * Request that {@link ASENSOR_TYPE_ADDITIONAL_INFO} events to be delivered on
  * the given {@link ASensorEventQueue}.
@@ -819,7 +815,6 @@
  * \return 0 on success or a negative error code on failure
  */
 int ASensorEventQueue_requestAdditionalInfoEvents(ASensorEventQueue* queue, bool enable) __INTRODUCED_IN(29);
-#endif /* __ANDROID_API__ >= 29 */
 
 /*****************************************************************************/
 
@@ -850,7 +845,6 @@
  */
 int ASensor_getMinDelay(ASensor const* sensor);
 
-#if __ANDROID_API__ >= 21
 /**
  * Returns the maximum size of batches for this sensor. Batches will often be
  * smaller, as the hardware fifo might be used for other sensors.
@@ -886,9 +880,7 @@
  * Available since API level 21.
  */
 bool ASensor_isWakeUpSensor(ASensor const* sensor) __INTRODUCED_IN(21);
-#endif /* __ANDROID_API__ >= 21 */
 
-#if __ANDROID_API__ >= 26
 /**
  * Test if sensor supports a certain type of direct channel.
  *
@@ -914,9 +906,7 @@
  *         does not support direct report.
  */
 int ASensor_getHighestDirectReportRateLevel(ASensor const* sensor) __INTRODUCED_IN(26);
-#endif /* __ANDROID_API__ >= 26 */
 
-#if __ANDROID_API__ >= 29
 /**
  * Returns the sensor's handle.
  *
@@ -934,7 +924,6 @@
  * Available since API level 29.
  */
 int ASensor_getHandle(ASensor const* sensor) __INTRODUCED_IN(29);
-#endif /* __ANDROID_API__ >= 29 */
 
 #ifdef __cplusplus
 };
diff --git a/include/android/sharedmem.h b/include/android/sharedmem.h
index 5f74682..7994aa9 100644
--- a/include/android/sharedmem.h
+++ b/include/android/sharedmem.h
@@ -50,8 +50,6 @@
 extern "C" {
 #endif
 
-#if __ANDROID_API__ >= 26
-
 /**
  * Create a shared memory region.
  *
@@ -121,8 +119,6 @@
  */
 int ASharedMemory_setProt(int fd, int prot) __INTRODUCED_IN(26);
 
-#endif // __ANDROID_API__ >= 26
-
 #ifdef __cplusplus
 };
 #endif
diff --git a/include/android/sharedmem_jni.h b/include/android/sharedmem_jni.h
index 13e56e6..bbac785 100644
--- a/include/android/sharedmem_jni.h
+++ b/include/android/sharedmem_jni.h
@@ -52,8 +52,6 @@
 extern "C" {
 #endif
 
-#if __ANDROID_API__ >= 27
-
 /**
  * Returns a dup'd FD from the given Java android.os.SharedMemory object. The returned file
  * descriptor has all the same properties & capabilities as the FD returned from
@@ -72,8 +70,6 @@
  */
 int ASharedMemory_dupFromJava(JNIEnv* env, jobject sharedMemory) __INTRODUCED_IN(27);
 
-#endif // __ANDROID_API__ >= 27
-
 #ifdef __cplusplus
 };
 #endif
diff --git a/include/android/surface_control.h b/include/android/surface_control.h
index cbcf6ec..27b880d 100644
--- a/include/android/surface_control.h
+++ b/include/android/surface_control.h
@@ -35,8 +35,6 @@
 
 __BEGIN_DECLS
 
-#if __ANDROID_API__ >= 29
-
 struct ASurfaceControl;
 
 /**
@@ -405,10 +403,6 @@
                                                  struct AHdrMetadata_cta861_3* metadata)
                                                  __INTRODUCED_IN(29);
 
-#endif // __ANDROID_API__ >= 29
-
-#if __ANDROID_API__ >= 30
-
 /**
  * Sets the intended frame rate for |surface_control|.
  *
@@ -435,8 +429,6 @@
                                       ASurfaceControl* surface_control, float frameRate,
                                       int8_t compatibility) __INTRODUCED_IN(30);
 
-#endif // __ANDROID_API__ >= 30
-
 __END_DECLS
 
 #endif // ANDROID_SURFACE_CONTROL_H
diff --git a/include/android/surface_texture.h b/include/android/surface_texture.h
index dde7eaa..b227b32 100644
--- a/include/android/surface_texture.h
+++ b/include/android/surface_texture.h
@@ -59,8 +59,6 @@
  */
 typedef struct ASurfaceTexture ASurfaceTexture;
 
-#if __ANDROID_API__ >= 28
-
 /**
  * Release the reference to the native ASurfaceTexture acquired with
  * ASurfaceTexture_fromSurfaceTexture().
@@ -175,8 +173,6 @@
  */
 int64_t ASurfaceTexture_getTimestamp(ASurfaceTexture* st) __INTRODUCED_IN(28);
 
-#endif /* __ANDROID_API__ >= 28 */
-
 __END_DECLS
 
 #endif /* ANDROID_NATIVE_SURFACE_TEXTURE_H */
diff --git a/include/android/surface_texture_jni.h b/include/android/surface_texture_jni.h
index 2266d54..e40686d 100644
--- a/include/android/surface_texture_jni.h
+++ b/include/android/surface_texture_jni.h
@@ -32,8 +32,6 @@
 
 __BEGIN_DECLS
 
-#if __ANDROID_API__ >= 28
-
 /**
  * Get a reference to the native ASurfaceTexture from the corresponding java object.
  *
@@ -52,8 +50,6 @@
  */
 ASurfaceTexture* ASurfaceTexture_fromSurfaceTexture(JNIEnv* env, jobject surfacetexture) __INTRODUCED_IN(28);
 
-#endif
-
 __END_DECLS
 
 #endif /* ANDROID_NATIVE_SURFACE_TEXTURE_JNI_H */
diff --git a/include/android/system_fonts.h b/include/android/system_fonts.h
index 6fd7d2c..b0bbb95 100644
--- a/include/android/system_fonts.h
+++ b/include/android/system_fonts.h
@@ -87,8 +87,6 @@
 
 __BEGIN_DECLS
 
-#if __ANDROID_API__ >= 29
-
 /**
  * ASystemFontIterator provides access to the system font configuration.
  *
@@ -128,8 +126,6 @@
  */
 AFont* _Nullable ASystemFontIterator_next(ASystemFontIterator* _Nonnull iterator) __INTRODUCED_IN(29);
 
-#endif // __ANDROID_API__ >= 29
-
 __END_DECLS
 
 #endif // ANDROID_SYSTEM_FONTS_H
diff --git a/include/android/thermal.h b/include/android/thermal.h
index 83582d6..5ebdc02 100644
--- a/include/android/thermal.h
+++ b/include/android/thermal.h
@@ -109,8 +109,6 @@
  */
 typedef void (*AThermal_StatusCallback)(void *data, AThermalStatus status);
 
-#if __ANDROID_API__ >= 30
-
 /**
   * Acquire an instance of the thermal manager. This must be freed using
   * {@link AThermal_releaseManager}.
@@ -179,8 +177,6 @@
 int AThermal_unregisterThermalStatusListener(AThermalManager *manager,
         AThermal_StatusCallback callback, void *data) __INTRODUCED_IN(30);
 
-#endif  //  __ANDROID_API__ >= 30
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/include/android/trace.h b/include/android/trace.h
index dbad6f6..dcefffb 100644
--- a/include/android/trace.h
+++ b/include/android/trace.h
@@ -40,8 +40,6 @@
 extern "C" {
 #endif
 
-#if __ANDROID_API__ >= 23
-
 /**
  * Returns true if tracing is enabled. Use this to avoid expensive computation only necessary
  * when tracing is enabled.
@@ -72,10 +70,6 @@
  */
 void ATrace_endSection() __INTRODUCED_IN(23);
 
-#endif /* __ANDROID_API__ >= 23 */
-
-#if __ANDROID_API__ >= 29
-
 /**
  * Writes a trace message to indicate that a given section of code has
  * begun. Must be followed by a call to {@link ATrace_endAsyncSection} with the same
@@ -112,8 +106,6 @@
  */
 void ATrace_setCounter(const char* counterName, int64_t counterValue) __INTRODUCED_IN(29);
 
-#endif /* __ANDROID_API__ >= 29 */
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/libs/binder/Android.bp b/libs/binder/Android.bp
index e754d74..11b032b 100644
--- a/libs/binder/Android.bp
+++ b/libs/binder/Android.bp
@@ -22,11 +22,13 @@
 
     header_libs: [
         "libbase_headers",
+        "libbinder_headers_platform_shared",
         "libcutils_headers",
         "libutils_headers",
     ],
     export_header_lib_headers: [
         "libbase_headers",
+        "libbinder_headers_platform_shared",
         "libcutils_headers",
         "libutils_headers",
     ],
@@ -214,6 +216,7 @@
         "aidl/android/os/IClientCallback.aidl",
         "aidl/android/os/IServiceCallback.aidl",
         "aidl/android/os/IServiceManager.aidl",
+        "aidl/android/os/ServiceDebugInfo.aidl",
     ],
     path: "aidl",
 }
diff --git a/libs/binder/IPCThreadState.cpp b/libs/binder/IPCThreadState.cpp
index 5c34069..79a11d2 100644
--- a/libs/binder/IPCThreadState.cpp
+++ b/libs/binder/IPCThreadState.cpp
@@ -611,6 +611,12 @@
     mPostWriteStrongDerefs.clear();
 }
 
+void IPCThreadState::createTransactionReference(RefBase* ref)
+{
+    ref->incStrong(mProcess.get());
+    mPostWriteStrongDerefs.push(ref);
+}
+
 void IPCThreadState::joinThreadPool(bool isMain)
 {
     LOG_THREADPOOL("**** THREAD %p (PID %d) IS JOINING THE THREAD POOL\n", (void*)pthread_self(), getpid());
diff --git a/libs/binder/IpPrefix.cpp b/libs/binder/IpPrefix.cpp
index 8d62266..4edc493 100644
--- a/libs/binder/IpPrefix.cpp
+++ b/libs/binder/IpPrefix.cpp
@@ -24,12 +24,10 @@
 #include <log/log.h>
 #include <utils/Errors.h>
 
-using android::BAD_TYPE;
 using android::BAD_VALUE;
 using android::NO_ERROR;
 using android::Parcel;
 using android::status_t;
-using android::UNEXPECTED_NULL;
 
 namespace android {
 
diff --git a/libs/binder/Parcel.cpp b/libs/binder/Parcel.cpp
index 8087443..8dab98e 100644
--- a/libs/binder/Parcel.cpp
+++ b/libs/binder/Parcel.cpp
@@ -2285,7 +2285,7 @@
         ssize_t written = TEMP_FAILURE_RETRY(
             ::write(comm, &message, sizeof(message)));
 
-        if (written == -1 || written != sizeof(message)) {
+        if (written != sizeof(message)) {
             ALOGW("Failed to detach ParcelFileDescriptor written: %zd err: %s",
                 written, strerror(errno));
             return BAD_TYPE;
diff --git a/libs/binder/PersistableBundle.cpp b/libs/binder/PersistableBundle.cpp
index c807cfe..406fee0 100644
--- a/libs/binder/PersistableBundle.cpp
+++ b/libs/binder/PersistableBundle.cpp
@@ -31,7 +31,6 @@
 using android::BAD_VALUE;
 using android::NO_ERROR;
 using android::Parcel;
-using android::sp;
 using android::status_t;
 using android::UNEXPECTED_NULL;
 
diff --git a/libs/binder/aidl/android/os/IServiceManager.aidl b/libs/binder/aidl/android/os/IServiceManager.aidl
index 2b1e492..ce30050 100644
--- a/libs/binder/aidl/android/os/IServiceManager.aidl
+++ b/libs/binder/aidl/android/os/IServiceManager.aidl
@@ -18,6 +18,7 @@
 
 import android.os.IClientCallback;
 import android.os.IServiceCallback;
+import android.os.ServiceDebugInfo;
 
 /**
  * Basic interface for finding and publishing system services.
@@ -116,4 +117,9 @@
      * Attempt to unregister and remove a service. Will fail if the service is still in use.
      */
     void tryUnregisterService(@utf8InCpp String name, IBinder service);
+
+    /**
+     * Get debug information for all currently registered services.
+     */
+    ServiceDebugInfo[] getServiceDebugInfo();
 }
diff --git a/libs/binder/aidl/android/os/ServiceDebugInfo.aidl b/libs/binder/aidl/android/os/ServiceDebugInfo.aidl
new file mode 100644
index 0000000..b95d222
--- /dev/null
+++ b/libs/binder/aidl/android/os/ServiceDebugInfo.aidl
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2021 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.
+ */
+
+package android.os;
+
+/**
+ * Debug information associated with a registered service
+ * @hide
+ */
+parcelable ServiceDebugInfo {
+    /**
+     * Service name (see IServiceManager.addService/checkService/getService)
+     */
+    @utf8InCpp String name;
+    /**
+     * PID of service at the time of registration (may no longer be valid).
+     */
+    int debugPid;
+}
diff --git a/libs/binder/include/binder/IBinder.h b/libs/binder/include/binder/IBinder.h
index c8fb448..31f63c8 100644
--- a/libs/binder/include/binder/IBinder.h
+++ b/libs/binder/include/binder/IBinder.h
@@ -60,6 +60,15 @@
         EXTENSION_TRANSACTION   = B_PACK_CHARS('_', 'E', 'X', 'T'),
         DEBUG_PID_TRANSACTION   = B_PACK_CHARS('_', 'P', 'I', 'D'),
 
+        // See android.os.IBinder.TWEET_TRANSACTION
+        // Most importantly, messages can be anything not exceeding 130 UTF-8
+        // characters, and callees should exclaim "jolly good message old boy!"
+        TWEET_TRANSACTION       = B_PACK_CHARS('_', 'T', 'W', 'T'),
+
+        // See android.os.IBinder.LIKE_TRANSACTION
+        // Improve binder self-esteem.
+        LIKE_TRANSACTION        = B_PACK_CHARS('_', 'L', 'I', 'K'),
+
         // Corresponds to TF_ONE_WAY -- an asynchronous call.
         FLAG_ONEWAY             = 0x00000001,
 
diff --git a/libs/binder/include/binder/IPCThreadState.h b/libs/binder/include/binder/IPCThreadState.h
index 0183324..23a0cb0 100644
--- a/libs/binder/include/binder/IPCThreadState.h
+++ b/libs/binder/include/binder/IPCThreadState.h
@@ -162,6 +162,12 @@
             // This constant needs to be kept in sync with Binder.UNSET_WORKSOURCE from the Java
             // side.
             static const int32_t kUnsetWorkSource = -1;
+
+            // Create a temp reference until commands in queue flushed to driver
+            // Internal only.
+            // @internal
+            void                 createTransactionReference(RefBase* ref);
+
 private:
                                 IPCThreadState();
                                 ~IPCThreadState();
diff --git a/libs/binder/include/binder/ParcelRef.h b/libs/binder/include/binder/ParcelRef.h
new file mode 100644
index 0000000..497da2d
--- /dev/null
+++ b/libs/binder/include/binder/ParcelRef.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2020 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.
+ */
+
+#pragma once
+
+
+#include <binder/Parcel.h>
+#include <utils/RefBase.h>
+
+// ---------------------------------------------------------------------------
+namespace android {
+
+/**
+ * internal use only
+ * @internal
+ */
+class ParcelRef : public Parcel, public RefBase
+{
+public:
+    static sp<ParcelRef> create() {
+        return new ParcelRef();
+    }
+
+private:
+    ParcelRef() = default;
+};
+
+} // namespace android
+
+// ---------------------------------------------------------------------------
\ No newline at end of file
diff --git a/libs/binder/ndk/Android.bp b/libs/binder/ndk/Android.bp
index 82f3882..d76a1f9 100644
--- a/libs/binder/ndk/Android.bp
+++ b/libs/binder/ndk/Android.bp
@@ -129,6 +129,28 @@
     ],
 }
 
+cc_library_headers {
+    name: "libbinder_headers_platform_shared",
+    export_include_dirs: ["include_cpp"],
+    vendor_available: true,
+    host_supported: true,
+    // TODO(b/153609531): remove when no longer needed.
+    native_bridge_supported: true,
+    target: {
+        darwin: {
+            enabled: false,
+        },
+    },
+    min_sdk_version: "29",
+    apex_available: [
+        "//apex_available:platform",
+        // TODO(b/166468760) remove these three
+        "com.android.media",
+        "com.android.media.swcodec",
+        "test_com.android.media.swcodec",
+    ],
+}
+
 ndk_headers {
     name: "libbinder_ndk_headers",
     from: "include_ndk/android",
diff --git a/libs/binder/ndk/ibinder.cpp b/libs/binder/ndk/ibinder.cpp
index 454fbd0..3c90681 100644
--- a/libs/binder/ndk/ibinder.cpp
+++ b/libs/binder/ndk/ibinder.cpp
@@ -597,13 +597,6 @@
         return STATUS_INVALID_OPERATION;
     }
 
-    if (!binder->isRemote()) {
-        LOG(WARNING) << "A binder object at " << binder
-                     << " is being transacted on, however, this object is in the same process as "
-                        "its proxy. Transacting with this binder is expensive compared to just "
-                        "calling the corresponding functionality in the same process.";
-    }
-
     *in = new AParcel(binder);
     status_t status = (*in)->get()->writeInterfaceToken(clazz->getInterfaceDescriptor());
     binder_status_t ret = PruneStatusT(status);
diff --git a/libs/binder/ndk/include_cpp/android/binder_to_string.h b/libs/binder/ndk/include_cpp/android/binder_to_string.h
new file mode 100644
index 0000000..bd51b11
--- /dev/null
+++ b/libs/binder/ndk/include_cpp/android/binder_to_string.h
@@ -0,0 +1,184 @@
+/*
+ * Copyright (C) 2021 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.
+ */
+
+/**
+ * @addtogroup NdkBinder
+ * @{
+ */
+
+/**
+ * @file binder_to_string.h
+ * @brief Helper for parcelable.
+ */
+
+#pragma once
+
+#include <codecvt>
+#include <locale>
+#include <sstream>
+#include <string>
+#include <type_traits>
+
+#if __has_include(<android/binder_ibinder.h>)
+#include <android/binder_auto_utils.h>
+#include <android/binder_interface_utils.h>
+#include <android/binder_parcelable_utils.h>
+#define HAS_NDK_INTERFACE
+#else
+#include <binder/IBinder.h>
+#include <binder/IInterface.h>
+#include <binder/ParcelFileDescriptor.h>
+#include <binder/ParcelableHolder.h>
+#include <utils/String16.h>
+#include <utils/StrongPointer.h>
+#define HAS_CPP_INTERFACE
+#endif  //_has_include
+
+namespace android {
+namespace internal {
+
+// ToString is a utility to generate string representation for various AIDL-supported types.
+template <typename _T>
+std::string ToString(const _T& t);
+
+namespace details {
+
+// Truthy if _T has toString() method.
+template <typename _T>
+class HasToStringMethod {
+    template <typename _U>
+    static auto _test(int) -> decltype(std::declval<_U>().toString(), std::true_type());
+    template <typename _U>
+    static std::false_type _test(...);
+
+   public:
+    enum { value = decltype(_test<_T>(0))::value };
+};
+
+// Truthy if _T has a overloaded toString(T)
+template <typename _T>
+class HasToStringFunction {
+    template <typename _U>
+    static auto _test(int) -> decltype(toString(std::declval<_U>()), std::true_type());
+    template <typename _U>
+    static std::false_type _test(...);
+
+   public:
+    enum { value = decltype(_test<_T>(0))::value };
+};
+
+// Truthy if _T is like a pointer
+template <typename _T>
+class IsPointerLike {
+    template <typename _U>
+    static auto _test(int) -> decltype(!std::declval<_U>(), *std::declval<_U>(), std::true_type());
+    template <typename _U>
+    static std::false_type _test(...);
+
+   public:
+    enum { value = decltype(_test<_T>(0))::value };
+};
+
+// Truthy if _T is like a container
+template <typename _T>
+class IsIterable {
+    template <typename _U>
+    static auto _test(int)
+            -> decltype(begin(std::declval<_U>()), end(std::declval<_U>()), std::true_type());
+    template <typename _U>
+    static std::false_type _test(...);
+
+   public:
+    enum { value = decltype(_test<_T>(0))::value };
+};
+
+template <typename _T>
+class ToEmptyString {
+    template <typename _U>
+    static std::enable_if_t<
+#ifdef HAS_NDK_INTERFACE
+            std::is_base_of_v<::ndk::ICInterface, _U> || std::is_same_v<::ndk::SpAIBinder, _U> ||
+                    std::is_same_v<::ndk::ScopedFileDescriptor, _U> ||
+                    std::is_same_v<::ndk::AParcelableHolder, _U>
+#else
+            std::is_base_of_v<IInterface, _U> || std::is_same_v<IBinder, _U> ||
+                    std::is_same_v<os::ParcelFileDescriptor, _U> ||
+                    std::is_same_v<os::ParcelableHolder, _U>
+#endif
+            ,
+            std::true_type>
+    _test(int);
+    template <typename _U>
+    static std::false_type _test(...);
+
+   public:
+    enum { value = decltype(_test<_T>(0))::value };
+};
+
+}  // namespace details
+
+template <typename _T>
+std::string ToString(const _T& t) {
+    if constexpr (details::ToEmptyString<_T>::value) {
+        return "";
+    } else if constexpr (std::is_same_v<bool, _T>) {
+        return t ? "true" : "false";
+    } else if constexpr (std::is_same_v<char16_t, _T>) {
+        return std::wstring_convert<std::codecvt_utf8_utf16<char16_t>, char16_t>().to_bytes(t);
+    } else if constexpr (std::is_arithmetic_v<_T>) {
+        return std::to_string(t);
+    } else if constexpr (std::is_same_v<std::string, _T>) {
+        return t;
+#ifdef HAS_CPP_INTERFACE
+    } else if constexpr (std::is_same_v<String16, _T>) {
+        std::stringstream out;
+        out << t;
+        return out.str();
+#endif
+    } else if constexpr (details::HasToStringMethod<_T>::value) {
+        return t.toString();
+    } else if constexpr (details::HasToStringFunction<_T>::value) {
+        return toString(t);
+    } else if constexpr (details::IsIterable<_T>::value) {
+        std::stringstream out;
+        bool first = true;
+        out << "[";
+        for (const auto& e : t) {
+            if (first) {
+                first = false;
+            } else {
+                out << ", ";
+            }
+            // Use explicit type parameter in case deref of iterator has different type
+            // e.g. vector<bool>
+            out << ToString<typename _T::value_type>(e);
+        }
+        out << "]";
+        return out.str();
+    } else if constexpr (details::IsPointerLike<_T>::value) {
+        if (!t) return "(null)";
+        std::stringstream out;
+        out << ToString(*t);
+        return out.str();
+    } else {
+        return "{no toString() implemented}";
+    }
+}
+
+}  // namespace internal
+}  // namespace android
+
+/** @} */
diff --git a/libs/binder/rust/tests/serialization.rs b/libs/binder/rust/tests/serialization.rs
index 2ae13f4..2bf3d03 100644
--- a/libs/binder/rust/tests/serialization.rs
+++ b/libs/binder/rust/tests/serialization.rs
@@ -25,7 +25,6 @@
 use binder::parcel::ParcelFileDescriptor;
 
 use std::ffi::{c_void, CStr, CString};
-use std::panic::{self, AssertUnwindSafe};
 use std::sync::Once;
 
 #[allow(
@@ -73,22 +72,9 @@
 
 impl ReadParcelTest for () {}
 
-fn on_transact(
-    _service: &dyn ReadParcelTest,
-    code: TransactionCode,
-    parcel: &Parcel,
-    reply: &mut Parcel,
-) -> Result<()> {
-    panic::catch_unwind(AssertUnwindSafe(|| transact_inner(code, parcel, reply))).unwrap_or_else(
-        |e| {
-            eprintln!("Failure in Rust: {:?}", e.downcast_ref::<String>());
-            Err(StatusCode::FAILED_TRANSACTION)
-        },
-    )
-}
-
 #[allow(clippy::float_cmp)]
-fn transact_inner(code: TransactionCode, parcel: &Parcel, reply: &mut Parcel) -> Result<()> {
+fn on_transact(_service: &dyn ReadParcelTest, code: TransactionCode,
+               parcel: &Parcel, reply: &mut Parcel) -> Result<()> {
     match code {
         bindings::Transaction_TEST_BOOL => {
             assert_eq!(parcel.read::<bool>()?, true);
@@ -296,7 +282,7 @@
             ))?;
         }
         bindings::Transaction_TEST_FAIL => {
-            panic!("Testing expected failure");
+            return Err(StatusCode::FAILED_TRANSACTION)
         }
         _ => return Err(StatusCode::UNKNOWN_TRANSACTION),
     }
diff --git a/libs/binder/tests/Android.bp b/libs/binder/tests/Android.bp
index 988f7f3..259417a 100644
--- a/libs/binder/tests/Android.bp
+++ b/libs/binder/tests/Android.bp
@@ -220,3 +220,15 @@
     test_suites: ["device-tests"],
     require_root: true,
 }
+
+cc_benchmark {
+    name: "binderParcelBenchmark",
+    defaults: ["binder_test_defaults"],
+    srcs: ["binderParcelBenchmark.cpp"],
+    shared_libs: [
+        "libbase",
+        "libbinder",
+        "liblog",
+        "libutils",
+    ],
+}
diff --git a/libs/binder/tests/binderLibTest.cpp b/libs/binder/tests/binderLibTest.cpp
index a5261e5..e2193fa 100644
--- a/libs/binder/tests/binderLibTest.cpp
+++ b/libs/binder/tests/binderLibTest.cpp
@@ -21,6 +21,7 @@
 #include <pthread.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <thread>
 
 #include <gtest/gtest.h>
 
@@ -28,6 +29,7 @@
 #include <binder/IBinder.h>
 #include <binder/IPCThreadState.h>
 #include <binder/IServiceManager.h>
+#include <binder/ParcelRef.h>
 
 #include <private/binder/binder_module.h>
 #include <linux/sched.h>
@@ -916,6 +918,36 @@
     }
 }
 
+TEST_F(BinderLibTest, ParcelAllocatedOnAnotherThread) {
+    sp<IBinder> server = addServer();
+    ASSERT_TRUE(server != nullptr);
+
+    Parcel data;
+    sp<ParcelRef> reply = ParcelRef::create();
+
+    // when we have a Parcel which is deleted on another thread, if it gets
+    // deleted, it will tell the kernel this, and it will drop strong references
+    // to binder, so that we can't BR_ACQUIRE would fail
+    IPCThreadState::self()->createTransactionReference(reply.get());
+    ASSERT_EQ(NO_ERROR, server->transact(BINDER_LIB_TEST_CREATE_BINDER_TRANSACTION,
+                                         data,
+                                         reply.get()));
+
+    // we have sp to binder, but it is not actually acquired by kernel, the
+    // transaction is sitting on an out buffer
+    sp<IBinder> binder = reply->readStrongBinder();
+
+    std::thread([&] {
+        // without the transaction reference, this would cause the Parcel to be
+        // deallocated before the first thread flushes BR_ACQUIRE
+        reply = nullptr;
+        IPCThreadState::self()->flushCommands();
+    }).join();
+
+    ASSERT_NE(nullptr, binder);
+    ASSERT_EQ(NO_ERROR, binder->pingBinder());
+}
+
 TEST_F(BinderLibTest, CheckNoHeaderMappedInUser) {
     status_t ret;
     Parcel data, reply;
diff --git a/libs/binder/tests/binderParcelBenchmark.cpp b/libs/binder/tests/binderParcelBenchmark.cpp
new file mode 100644
index 0000000..ec69c36
--- /dev/null
+++ b/libs/binder/tests/binderParcelBenchmark.cpp
@@ -0,0 +1,172 @@
+/*
+ * Copyright (C) 2021 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.
+ */
+
+#include <binder/Parcel.h>
+#include <benchmark/benchmark.h>
+
+// Usage: atest binderParcelBenchmark
+
+// For static assert(false) we need a template version to avoid early failure.
+// See: https://stackoverflow.com/questions/51523965/template-dependent-false
+template <typename T>
+constexpr bool dependent_false_v = false;
+
+template <template <typename ...> class V, typename T, typename... Args>
+void writeVector(android::Parcel &p, const V<T, Args...> &v) {
+    if constexpr (std::is_same_v<T, bool>) {
+        p.writeBoolVector(v);
+    } else if constexpr (std::is_same_v<T, uint8_t>) {
+        p.writeByteVector(v);
+    } else if constexpr (std::is_same_v<T, char16_t>) {
+        p.writeCharVector(v);
+    } else if constexpr (std::is_same_v<T, int32_t>) {
+        p.writeInt32Vector(v);
+    } else if constexpr (std::is_same_v<T, int64_t>) {
+        p.writeInt64Vector(v);
+    } else {
+        static_assert(dependent_false_v<V<T>>);
+    }
+}
+
+template <template <typename ...> class V, typename T, typename... Args>
+void readVector(android::Parcel &p, V<T, Args...> *v) {
+    if constexpr (std::is_same_v<T, bool>) {
+        p.readBoolVector(v);
+    } else if constexpr (std::is_same_v<T, uint8_t>) {
+        p.readByteVector(v);
+    } else if constexpr (std::is_same_v<T, char16_t>) {
+        p.readCharVector(v);
+    } else if constexpr (std::is_same_v<T, int32_t>) {
+        p.readInt32Vector(v);
+    } else if constexpr (std::is_same_v<T, int64_t>) {
+        p.readInt64Vector(v);
+    } else {
+        static_assert(dependent_false_v<V<T>>);
+    }
+}
+
+// Construct a series of args { 1 << 0, 1 << 1, ..., 1 << 10 }
+static void VectorArgs(benchmark::internal::Benchmark* b) {
+    for (int i = 0; i < 10; ++i) {
+        b->Args({1 << i});
+    }
+}
+
+template <typename T>
+static void BM_ParcelVector(benchmark::State& state) {
+    const size_t elements = state.range(0);
+
+    std::vector<T> v1(elements);
+    std::vector<T> v2(elements);
+    android::Parcel p;
+    while (state.KeepRunning()) {
+        p.setDataPosition(0);
+        writeVector(p, v1);
+
+        p.setDataPosition(0);
+        readVector(p, &v2);
+
+        benchmark::DoNotOptimize(v2[0]);
+        benchmark::ClobberMemory();
+    }
+    state.SetComplexityN(elements);
+}
+
+/*
+  Parcel vector write than read.
+  The read and write vectors are fixed, no resizing required.
+
+  Results on Crosshatch Pixel 3XL
+
+  #BM_BoolVector/1         40 ns      40 ns     17261011
+  #BM_BoolVector/2         46 ns      46 ns     15029619
+  #BM_BoolVector/4         65 ns      64 ns     10888021
+  #BM_BoolVector/8        114 ns     114 ns      6130937
+  #BM_BoolVector/16       179 ns     179 ns      3902462
+  #BM_BoolVector/32       328 ns     327 ns      2138812
+  #BM_BoolVector/64       600 ns     598 ns      1169414
+  #BM_BoolVector/128     1168 ns    1165 ns       601281
+  #BM_BoolVector/256     2288 ns    2281 ns       305737
+  #BM_BoolVector/512     4535 ns    4521 ns       154668
+  #BM_ByteVector/1         53 ns      52 ns     13212196
+  #BM_ByteVector/2         53 ns      53 ns     13194050
+  #BM_ByteVector/4         50 ns      50 ns     13768037
+  #BM_ByteVector/8         50 ns      50 ns     13890210
+  #BM_ByteVector/16        50 ns      50 ns     13897305
+  #BM_ByteVector/32        51 ns      51 ns     13679862
+  #BM_ByteVector/64        54 ns      53 ns     12988544
+  #BM_ByteVector/128       64 ns      64 ns     10921227
+  #BM_ByteVector/256       82 ns      81 ns      8542549
+  #BM_ByteVector/512      118 ns     118 ns      5862931
+  #BM_CharVector/1         32 ns      32 ns     21783579
+  #BM_CharVector/2         38 ns      38 ns     18200971
+  #BM_CharVector/4         53 ns      53 ns     13111785
+  #BM_CharVector/8         80 ns      80 ns      8698331
+  #BM_CharVector/16       159 ns     159 ns      4390738
+  #BM_CharVector/32       263 ns     262 ns      2667310
+  #BM_CharVector/64       486 ns     485 ns      1441118
+  #BM_CharVector/128      937 ns     934 ns       749006
+  #BM_CharVector/256     1848 ns    1843 ns       379537
+  #BM_CharVector/512     3650 ns    3639 ns       191713
+  #BM_Int32Vector/1        31 ns      31 ns     22104147
+  #BM_Int32Vector/2        38 ns      38 ns     18075471
+  #BM_Int32Vector/4        53 ns      52 ns     13249969
+  #BM_Int32Vector/8        80 ns      80 ns      8719798
+  #BM_Int32Vector/16      161 ns     160 ns      4350096
+  #BM_Int32Vector/32      271 ns     270 ns      2591896
+  #BM_Int32Vector/64      499 ns     498 ns      1406201
+  #BM_Int32Vector/128     948 ns     945 ns       740052
+  #BM_Int32Vector/256    1855 ns    1849 ns       379127
+  #BM_Int32Vector/512    3665 ns    3653 ns       191533
+  #BM_Int64Vector/1        31 ns      31 ns     22388370
+  #BM_Int64Vector/2        38 ns      38 ns     18300347
+  #BM_Int64Vector/4        53 ns      53 ns     13137818
+  #BM_Int64Vector/8        81 ns      81 ns      8599613
+  #BM_Int64Vector/16      167 ns     166 ns      4195953
+  #BM_Int64Vector/32      280 ns     280 ns      2499271
+  #BM_Int64Vector/64      523 ns     522 ns      1341380
+  #BM_Int64Vector/128     991 ns     988 ns       707437
+  #BM_Int64Vector/256    1940 ns    1934 ns       361704
+  #BM_Int64Vector/512    3843 ns    3831 ns       183204
+*/
+
+static void BM_BoolVector(benchmark::State& state) {
+    BM_ParcelVector<bool>(state);
+}
+
+static void BM_ByteVector(benchmark::State& state) {
+    BM_ParcelVector<uint8_t>(state);
+}
+
+static void BM_CharVector(benchmark::State& state) {
+    BM_ParcelVector<char16_t>(state);
+}
+
+static void BM_Int32Vector(benchmark::State& state) {
+    BM_ParcelVector<int32_t>(state);
+}
+
+static void BM_Int64Vector(benchmark::State& state) {
+    BM_ParcelVector<int64_t>(state);
+}
+
+BENCHMARK(BM_BoolVector)->Apply(VectorArgs);
+BENCHMARK(BM_ByteVector)->Apply(VectorArgs);
+BENCHMARK(BM_CharVector)->Apply(VectorArgs);
+BENCHMARK(BM_Int32Vector)->Apply(VectorArgs);
+BENCHMARK(BM_Int64Vector)->Apply(VectorArgs);
+
+BENCHMARK_MAIN();
diff --git a/libs/cputimeinstate/cputimeinstate.cpp b/libs/cputimeinstate/cputimeinstate.cpp
index 2e72cc4..7e9bb7d 100644
--- a/libs/cputimeinstate/cputimeinstate.cpp
+++ b/libs/cputimeinstate/cputimeinstate.cpp
@@ -99,7 +99,7 @@
     struct dirent **dirlist;
     const char basepath[] = "/sys/devices/system/cpu/cpufreq";
     int ret = scandir(basepath, &dirlist, isPolicyFile, comparePolicyFiles);
-    if (ret == -1) return false;
+    if (ret == -1 || ret == 0) return false;
     gNPolicies = ret;
 
     std::vector<std::string> policyFileNames;
@@ -155,10 +155,14 @@
     return true;
 }
 
-static bool attachTracepointProgram(const std::string &eventType, const std::string &eventName) {
+static int retrieveProgramFd(const std::string &eventType, const std::string &eventName) {
     std::string path = StringPrintf(BPF_FS_PATH "prog_time_in_state_tracepoint_%s_%s",
                                     eventType.c_str(), eventName.c_str());
-    int prog_fd = retrieveProgram(path.c_str());
+    return retrieveProgram(path.c_str());
+}
+
+static bool attachTracepointProgram(const std::string &eventType, const std::string &eventName) {
+    int prog_fd = retrieveProgramFd(eventType, eventName);
     if (prog_fd < 0) return false;
     return bpf_attach_tracepoint(prog_fd, eventType.c_str(), eventName.c_str()) >= 0;
 }
@@ -174,6 +178,17 @@
     return {};
 }
 
+// Check if tracking is expected to work without activating it.
+bool isTrackingUidTimesSupported() {
+    auto freqs = getCpuFreqs();
+    if (!freqs || freqs->empty()) return false;
+    if (gTracking) return true;
+    if (retrieveProgramFd("sched", "sched_switch") < 0) return false;
+    if (retrieveProgramFd("power", "cpu_frequency") < 0) return false;
+    if (retrieveProgramFd("sched", "sched_process_free") < 0) return false;
+    return true;
+}
+
 // Start tracking and aggregating data to be reported by getUidCpuFreqTimes and getUidsCpuFreqTimes.
 // Returns true on success, false otherwise.
 // Tracking is active only once a live process has successfully called this function; if the calling
diff --git a/libs/cputimeinstate/cputimeinstate.h b/libs/cputimeinstate/cputimeinstate.h
index 46de669..4145374 100644
--- a/libs/cputimeinstate/cputimeinstate.h
+++ b/libs/cputimeinstate/cputimeinstate.h
@@ -22,6 +22,7 @@
 namespace android {
 namespace bpf {
 
+bool isTrackingUidTimesSupported();
 bool startTrackingUidTimes();
 std::optional<std::vector<std::vector<uint64_t>>> getTotalCpuFreqTimes();
 std::optional<std::vector<std::vector<uint64_t>>> getUidCpuFreqTimes(uint32_t uid);
diff --git a/libs/cputimeinstate/testtimeinstate.cpp b/libs/cputimeinstate/testtimeinstate.cpp
index d25b2e9..2112b10 100644
--- a/libs/cputimeinstate/testtimeinstate.cpp
+++ b/libs/cputimeinstate/testtimeinstate.cpp
@@ -40,6 +40,11 @@
 
 using std::vector;
 
+TEST(TimeInStateTest, IsTrackingSupported) {
+    isTrackingUidTimesSupported();
+    SUCCEED();
+}
+
 TEST(TimeInStateTest, TotalTimeInState) {
     auto times = getTotalCpuFreqTimes();
     ASSERT_TRUE(times.has_value());
diff --git a/libs/dumputils/dump_utils.cpp b/libs/dumputils/dump_utils.cpp
index 3faf792..8b3c3ad 100644
--- a/libs/dumputils/dump_utils.cpp
+++ b/libs/dumputils/dump_utils.cpp
@@ -52,7 +52,6 @@
 
 /* list of hal interface to dump containing process during native dumps */
 static const char* hal_interfaces_to_dump[] {
-        "android.hardware.audio@2.0::IDevicesFactory",
         "android.hardware.audio@4.0::IDevicesFactory",
         "android.hardware.audio@5.0::IDevicesFactory",
         "android.hardware.audio@6.0::IDevicesFactory",
diff --git a/libs/nativewindow/Android.bp b/libs/nativewindow/Android.bp
index 07e5d86..3011dcc 100644
--- a/libs/nativewindow/Android.bp
+++ b/libs/nativewindow/Android.bp
@@ -28,6 +28,7 @@
     // TODO(b/153609531): remove when no longer needed.
     native_bridge_supported: true,
     min_sdk_version: "29",
+    host_supported: true,
 }
 
 ndk_library {
diff --git a/libs/nativewindow/include/android/hardware_buffer.h b/libs/nativewindow/include/android/hardware_buffer.h
index ae5e47b..dcb05b5 100644
--- a/libs/nativewindow/include/android/hardware_buffer.h
+++ b/libs/nativewindow/include/android/hardware_buffer.h
@@ -332,8 +332,6 @@
  */
 typedef struct AHardwareBuffer AHardwareBuffer;
 
-#if __ANDROID_API__ >= 26
-
 /**
  * Allocates a buffer that matches the passed AHardwareBuffer_Desc.
  *
@@ -501,10 +499,6 @@
  */
 int AHardwareBuffer_recvHandleFromUnixSocket(int socketFd, AHardwareBuffer** outBuffer) __INTRODUCED_IN(26);
 
-#endif // __ANDROID_API__ >= 26
-
-#if __ANDROID_API__ >= 29
-
 /**
  * Test whether the given format and usage flag combination is
  * allocatable.
@@ -540,7 +534,6 @@
 int AHardwareBuffer_lockAndGetInfo(AHardwareBuffer* buffer, uint64_t usage,
         int32_t fence, const ARect* rect, void** outVirtualAddress,
         int32_t* outBytesPerPixel, int32_t* outBytesPerStride) __INTRODUCED_IN(29);
-#endif // __ANDROID_API__ >= 29
 
 __END_DECLS
 
diff --git a/libs/nativewindow/include/android/native_window.h b/libs/nativewindow/include/android/native_window.h
index 36aad2e..a3a45e3 100644
--- a/libs/nativewindow/include/android/native_window.h
+++ b/libs/nativewindow/include/android/native_window.h
@@ -185,8 +185,6 @@
  */
 int32_t ANativeWindow_unlockAndPost(ANativeWindow* window);
 
-#if __ANDROID_API__ >= 26
-
 /**
  * Set a transform that will be applied to future buffers posted to the window.
  *
@@ -197,10 +195,6 @@
  */
 int32_t ANativeWindow_setBuffersTransform(ANativeWindow* window, int32_t transform) __INTRODUCED_IN(26);
 
-#endif // __ANDROID_API__ >= 26
-
-#if __ANDROID_API__ >= 28
-
 /**
  * All buffers queued after this call will be associated with the dataSpace
  * parameter specified.
@@ -229,10 +223,6 @@
  */
 int32_t ANativeWindow_getBuffersDataSpace(ANativeWindow* window) __INTRODUCED_IN(28);
 
-#endif // __ANDROID_API__ >= 28
-
-#if __ANDROID_API__ >= 30
-
 /** Compatibility value for ANativeWindow_setFrameRate. */
 enum ANativeWindow_FrameRateCompatibility {
     /**
@@ -301,8 +291,6 @@
  */
 void ANativeWindow_tryAllocateBuffers(ANativeWindow* window);
 
-#endif // __ANDROID_API__ >= 30
-
 #ifdef __cplusplus
 };
 #endif
diff --git a/services/surfaceflinger/Scheduler/VSyncPredictor.cpp b/services/surfaceflinger/Scheduler/VSyncPredictor.cpp
index 61f3fbb..708a5b8 100644
--- a/services/surfaceflinger/Scheduler/VSyncPredictor.cpp
+++ b/services/surfaceflinger/Scheduler/VSyncPredictor.cpp
@@ -78,8 +78,12 @@
 
     if (!validate(timestamp)) {
         // VSR could elect to ignore the incongruent timestamp or resetModel(). If ts is ignored,
-        // don't insert this ts into mTimestamps ringbuffer.
-        if (!mTimestamps.empty()) {
+        // don't insert this ts into mTimestamps ringbuffer. If we are still
+        // in the learning phase we should just clear all timestamps and start
+        // over.
+        if (mTimestamps.size() < kMinimumSamplesForPrediction) {
+            clearTimestamps();
+        } else if (!mTimestamps.empty()) {
             mKnownTimestamp =
                     std::max(timestamp, *std::max_element(mTimestamps.begin(), mTimestamps.end()));
         } else {
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 261722d..4698ac6 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -596,13 +596,6 @@
     if (mWindowManager != 0) {
         mWindowManager->linkToDeath(static_cast<IBinder::DeathRecipient*>(this));
     }
-    sp<IBinder> input(defaultServiceManager()->getService(
-            String16("inputflinger")));
-    if (input == nullptr) {
-        ALOGE("Failed to link to input service");
-    } else {
-        mInputFlinger = interface_cast<IInputFlinger>(input);
-    }
 
     // stop boot animation
     // formerly we would just kill the process, but we now ask it to exit so it
@@ -613,7 +606,15 @@
     LOG_EVENT_LONG(LOGTAG_SF_STOP_BOOTANIM,
                    ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
 
-    static_cast<void>(schedule([this] {
+    sp<IBinder> input(defaultServiceManager()->getService(String16("inputflinger")));
+
+    static_cast<void>(schedule([=] {
+        if (input == nullptr) {
+            ALOGE("Failed to link to input service");
+        } else {
+            mInputFlinger = interface_cast<IInputFlinger>(input);
+        }
+
         readPersistentProperties();
         mPowerAdvisor.onBootFinished();
         mBootStage = BootStage::FINISHED;
@@ -1725,8 +1726,14 @@
     // calculate the expected present time once and use the cached
     // value throughout this frame to make sure all layers are
     // seeing this same value.
-    const nsecs_t lastExpectedPresentTime = mExpectedPresentTime.load();
-    mExpectedPresentTime = expectedVSyncTime;
+    if (expectedVSyncTime >= frameStart) {
+        mExpectedPresentTime = expectedVSyncTime;
+    } else {
+        mExpectedPresentTime = mScheduler->getDispSyncExpectedPresentTime(frameStart);
+    }
+
+    const nsecs_t lastScheduledPresentTime = mScheduledPresentTime;
+    mScheduledPresentTime = expectedVSyncTime;
 
     // When Backpressure propagation is enabled we want to give a small grace period
     // for the present fence to fire instead of just giving up on this frame to handle cases
@@ -1756,7 +1763,7 @@
     const TracedOrdinal<bool> frameMissed = {"PrevFrameMissed",
                                              framePending ||
                                                      (previousPresentTime >= 0 &&
-                                                      (lastExpectedPresentTime <
+                                                      (lastScheduledPresentTime <
                                                        previousPresentTime - frameMissedSlop))};
     const TracedOrdinal<bool> hwcFrameMissed = {"PrevHwcFrameMissed",
                                                 mHadDeviceComposition && frameMissed};
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 61bd020..90ac856 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -1199,6 +1199,7 @@
     std::unique_ptr<scheduler::RefreshRateStats> mRefreshRateStats;
 
     std::atomic<nsecs_t> mExpectedPresentTime = 0;
+    nsecs_t mScheduledPresentTime = 0;
     hal::Vsync mHWCVsyncPendingState = hal::Vsync::DISABLE;
 
     /* ------------------------------------------------------------------------
diff --git a/services/surfaceflinger/tests/unittests/VSyncPredictorTest.cpp b/services/surfaceflinger/tests/unittests/VSyncPredictorTest.cpp
index d4cd11d..5e5d51c 100644
--- a/services/surfaceflinger/tests/unittests/VSyncPredictorTest.cpp
+++ b/services/surfaceflinger/tests/unittests/VSyncPredictorTest.cpp
@@ -450,6 +450,20 @@
     EXPECT_THAT(intercept, Eq(0));
 }
 
+TEST_F(VSyncPredictorTest, InconsistentVsyncValueIsFlushedEventually) {
+    EXPECT_TRUE(tracker.addVsyncTimestamp(600));
+    EXPECT_TRUE(tracker.needsMoreSamples());
+
+    EXPECT_FALSE(tracker.addVsyncTimestamp(mNow += mPeriod));
+
+    for (auto i = 0u; i < kMinimumSamplesForPrediction; i++) {
+        EXPECT_TRUE(tracker.needsMoreSamples());
+        EXPECT_TRUE(tracker.addVsyncTimestamp(mNow += mPeriod));
+    }
+
+    EXPECT_FALSE(tracker.needsMoreSamples());
+}
+
 } // namespace android::scheduler
 
 // TODO(b/129481165): remove the #pragma below and fix conversion issues
diff --git a/vulkan/libvulkan/swapchain.cpp b/vulkan/libvulkan/swapchain.cpp
index 6b51817..da28052 100644
--- a/vulkan/libvulkan/swapchain.cpp
+++ b/vulkan/libvulkan/swapchain.cpp
@@ -606,44 +606,9 @@
 VKAPI_ATTR
 VkResult GetPhysicalDeviceSurfaceSupportKHR(VkPhysicalDevice /*pdev*/,
                                             uint32_t /*queue_family*/,
-                                            VkSurfaceKHR surface_handle,
+                                            VkSurfaceKHR /*surface_handle*/,
                                             VkBool32* supported) {
-    ATRACE_CALL();
-
-    const Surface* surface = SurfaceFromHandle(surface_handle);
-    if (!surface) {
-        return VK_ERROR_SURFACE_LOST_KHR;
-    }
-    const ANativeWindow* window = surface->window.get();
-
-    int query_value;
-    int err = window->query(window, NATIVE_WINDOW_FORMAT, &query_value);
-    if (err != android::OK || query_value < 0) {
-        ALOGE("NATIVE_WINDOW_FORMAT query failed: %s (%d) value=%d",
-              strerror(-err), err, query_value);
-        return VK_ERROR_SURFACE_LOST_KHR;
-    }
-
-    android_pixel_format native_format =
-        static_cast<android_pixel_format>(query_value);
-
-    bool format_supported = false;
-    switch (native_format) {
-        case HAL_PIXEL_FORMAT_RGBA_8888:
-        case HAL_PIXEL_FORMAT_RGB_565:
-        case HAL_PIXEL_FORMAT_RGBA_FP16:
-        case HAL_PIXEL_FORMAT_RGBA_1010102:
-            format_supported = true;
-            break;
-        default:
-            break;
-    }
-
-    *supported = static_cast<VkBool32>(
-        format_supported || (surface->consumer_usage &
-                             (AHARDWAREBUFFER_USAGE_CPU_READ_MASK |
-                              AHARDWAREBUFFER_USAGE_CPU_WRITE_MASK)) == 0);
-
+    *supported = VK_TRUE;
     return VK_SUCCESS;
 }