diff --git a/adb/adb_utils.cpp b/adb/adb_utils.cpp
index bb26e70..b236fb3 100644
--- a/adb/adb_utils.cpp
+++ b/adb/adb_utils.cpp
@@ -157,7 +157,12 @@
 }
 
 std::string dump_hex(const void* data, size_t byte_count) {
-    byte_count = std::min(byte_count, size_t(16));
+    size_t truncate_len = 16;
+    bool truncated = false;
+    if (byte_count > truncate_len) {
+        byte_count = truncate_len;
+        truncated = true;
+    }
 
     const uint8_t* p = reinterpret_cast<const uint8_t*>(data);
 
@@ -172,6 +177,10 @@
         line.push_back(isprint(ch) ? ch : '.');
     }
 
+    if (truncated) {
+        line += " [truncated]";
+    }
+
     return line;
 }
 
diff --git a/adb/transport_usb.cpp b/adb/transport_usb.cpp
index 47094b8..2f46920 100644
--- a/adb/transport_usb.cpp
+++ b/adb/transport_usb.cpp
@@ -192,7 +192,7 @@
 #if defined(_WIN32) || !ADB_HOST
     return false;
 #else
-    static bool disable = getenv("ADB_LIBUSB") && strcmp(getenv("ADB_LIBUSB"), "0") == 0;
-    return !disable;
+    static bool enable = getenv("ADB_LIBUSB") && strcmp(getenv("ADB_LIBUSB"), "1") == 0;
+    return enable;
 #endif
 }
diff --git a/base/include/android-base/utf8.h b/base/include/android-base/utf8.h
index 2d5a6f6..c9cc1ab 100755
--- a/base/include/android-base/utf8.h
+++ b/base/include/android-base/utf8.h
@@ -22,6 +22,8 @@
 #else
 // Bring in prototypes for standard APIs so that we can import them into the utf8 namespace.
 #include <fcntl.h>      // open
+#include <stdio.h>      // fopen
+#include <sys/stat.h>   // mkdir
 #include <unistd.h>     // unlink
 #endif
 
@@ -53,6 +55,19 @@
 // Convert a UTF-8 std::string (including any embedded NULL characters) to
 // UTF-16. Returns whether the conversion was done successfully.
 bool UTF8ToWide(const std::string& utf8, std::wstring* utf16);
+
+// Convert a file system path, represented as a NULL-terminated string of
+// UTF-8 characters, to a UTF-16 string representing the same file system
+// path using the Windows extended-lengh path representation.
+//
+// See https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx#MAXPATH:
+//   ```The Windows API has many functions that also have Unicode versions to
+//   permit an extended-length path for a maximum total path length of 32,767
+//   characters. To specify an extended-length path, use the "\\?\" prefix.
+//   For example, "\\?\D:\very long path".```
+//
+// Returns whether the conversion was done successfully.
+bool UTF8PathToWindowsLongPath(const char* utf8, std::wstring* utf16);
 #endif
 
 // The functions in the utf8 namespace take UTF-8 strings. For Windows, these
@@ -73,9 +88,13 @@
 namespace utf8 {
 
 #ifdef _WIN32
+FILE* fopen(const char* name, const char* mode);
+int mkdir(const char* name, mode_t mode);
 int open(const char* name, int flags, ...);
 int unlink(const char* name);
 #else
+using ::fopen;
+using ::mkdir;
 using ::open;
 using ::unlink;
 #endif
diff --git a/base/utf8.cpp b/base/utf8.cpp
index 3cca700..5984fb0 100644
--- a/base/utf8.cpp
+++ b/base/utf8.cpp
@@ -19,7 +19,9 @@
 #include "android-base/utf8.h"
 
 #include <fcntl.h>
+#include <stdio.h>
 
+#include <algorithm>
 #include <string>
 
 #include "android-base/logging.h"
@@ -153,12 +155,58 @@
   return UTF8ToWide(utf8.c_str(), utf8.length(), utf16);
 }
 
+static bool isDriveLetter(wchar_t c) {
+  return (c >= L'a' && c <= L'z') || (c >= L'A' && c <= L'Z');
+}
+
+bool UTF8PathToWindowsLongPath(const char* utf8, std::wstring* utf16) {
+  if (!UTF8ToWide(utf8, utf16)) {
+    return false;
+  }
+  // Note: Although most Win32 File I/O API are limited to MAX_PATH (260
+  //       characters), the CreateDirectory API is limited to 248 characters.
+  if (utf16->length() >= 248) {
+    // If path is of the form "x:\" or "x:/"
+    if (isDriveLetter((*utf16)[0]) && (*utf16)[1] == L':' &&
+        ((*utf16)[2] == L'\\' || (*utf16)[2] == L'/')) {
+      // Append long path prefix, and make sure there are no unix-style
+      // separators to ensure a fully compliant Win32 long path string.
+      utf16->insert(0, LR"(\\?\)");
+      std::replace(utf16->begin(), utf16->end(), L'/', L'\\');
+    }
+  }
+  return true;
+}
+
 // Versions of standard library APIs that support UTF-8 strings.
 namespace utf8 {
 
+FILE* fopen(const char* name, const char* mode) {
+  std::wstring name_utf16;
+  if (!UTF8PathToWindowsLongPath(name, &name_utf16)) {
+    return nullptr;
+  }
+
+  std::wstring mode_utf16;
+  if (!UTF8ToWide(mode, &mode_utf16)) {
+    return nullptr;
+  }
+
+  return _wfopen(name_utf16.c_str(), mode_utf16.c_str());
+}
+
+int mkdir(const char* name, mode_t mode) {
+  std::wstring name_utf16;
+  if (!UTF8PathToWindowsLongPath(name, &name_utf16)) {
+    return -1;
+  }
+
+  return _wmkdir(name_utf16.c_str());
+}
+
 int open(const char* name, int flags, ...) {
   std::wstring name_utf16;
-  if (!UTF8ToWide(name, &name_utf16)) {
+  if (!UTF8PathToWindowsLongPath(name, &name_utf16)) {
     return -1;
   }
 
@@ -175,7 +223,7 @@
 
 int unlink(const char* name) {
   std::wstring name_utf16;
-  if (!UTF8ToWide(name, &name_utf16)) {
+  if (!UTF8PathToWindowsLongPath(name, &name_utf16)) {
     return -1;
   }
 
diff --git a/base/utf8_test.cpp b/base/utf8_test.cpp
index ae8fc8c..fcb25c3 100644
--- a/base/utf8_test.cpp
+++ b/base/utf8_test.cpp
@@ -18,7 +18,12 @@
 
 #include <gtest/gtest.h>
 
+#include <fcntl.h>
+#include <stdlib.h>
+
 #include "android-base/macros.h"
+#include "android-base/test_utils.h"
+#include "android-base/unique_fd.h"
 
 namespace android {
 namespace base {
@@ -408,5 +413,76 @@
   EXPECT_EQ(expected_null, SysUTF8ToWide(utf8_null));
 }
 
+TEST(UTF8PathToWindowsLongPathTest, DontAddPrefixIfShorterThanMaxPath) {
+  std::string utf8 = "c:\\mypath\\myfile.txt";
+
+  std::wstring wide;
+  EXPECT_TRUE(UTF8PathToWindowsLongPath(utf8.c_str(), &wide));
+
+  EXPECT_EQ(std::string::npos, wide.find(LR"(\\?\)"));
+}
+
+TEST(UTF8PathToWindowsLongPathTest, AddPrefixIfLongerThanMaxPath) {
+  std::string utf8 = "c:\\mypath";
+  while (utf8.length() < 300 /* MAX_PATH is 260 */) {
+    utf8 += "\\mypathsegment";
+  }
+
+  std::wstring wide;
+  EXPECT_TRUE(UTF8PathToWindowsLongPath(utf8.c_str(), &wide));
+
+  EXPECT_EQ(0U, wide.find(LR"(\\?\)"));
+  EXPECT_EQ(std::string::npos, wide.find(L"/"));
+}
+
+TEST(UTF8PathToWindowsLongPathTest, AddPrefixAndFixSeparatorsIfLongerThanMaxPath) {
+  std::string utf8 = "c:/mypath";
+  while (utf8.length() < 300 /* MAX_PATH is 260 */) {
+    utf8 += "/mypathsegment";
+  }
+
+  std::wstring wide;
+  EXPECT_TRUE(UTF8PathToWindowsLongPath(utf8.c_str(), &wide));
+
+  EXPECT_EQ(0U, wide.find(LR"(\\?\)"));
+  EXPECT_EQ(std::string::npos, wide.find(L"/"));
+}
+
+namespace utf8 {
+
+TEST(Utf8FilesTest, CanCreateOpenAndDeleteFileWithLongPath) {
+  TemporaryDir td;
+
+  // Create long directory path
+  std::string utf8 = td.path;
+  while (utf8.length() < 300 /* MAX_PATH is 260 */) {
+    utf8 += "\\mypathsegment";
+    EXPECT_EQ(0, mkdir(utf8.c_str(), 0));
+  }
+
+  // Create file
+  utf8 += "\\test-file.bin";
+  int flags = O_WRONLY | O_CREAT | O_TRUNC | O_BINARY;
+  int mode = 0666;
+  android::base::unique_fd fd(open(utf8.c_str(), flags, mode));
+  EXPECT_NE(-1, fd.get());
+
+  // Close file
+  fd.reset();
+  EXPECT_EQ(-1, fd.get());
+
+  // Open file with fopen
+  FILE* file = fopen(utf8.c_str(), "rb");
+  EXPECT_NE(nullptr, file);
+
+  if (file) {
+    fclose(file);
+  }
+
+  // Delete file
+  EXPECT_EQ(0, unlink(utf8.c_str()));
+}
+
+}  // namespace utf8
 }  // namespace base
 }  // namespace android
diff --git a/debuggerd/Android.bp b/debuggerd/Android.bp
index 5565cfd..f993820 100644
--- a/debuggerd/Android.bp
+++ b/debuggerd/Android.bp
@@ -274,6 +274,7 @@
         "libbase",
         "libdebuggerd_client",
         "liblog",
+        "libprocinfo",
         "libselinux",
     ],
 
diff --git a/debuggerd/debuggerd.cpp b/debuggerd/debuggerd.cpp
index 6298ace..0cc5f69 100644
--- a/debuggerd/debuggerd.cpp
+++ b/debuggerd/debuggerd.cpp
@@ -27,6 +27,7 @@
 #include <android-base/parseint.h>
 #include <android-base/unique_fd.h>
 #include <debuggerd/client.h>
+#include <procinfo/process.h>
 #include <selinux/selinux.h>
 #include "util.h"
 
@@ -66,6 +67,24 @@
     usage(1);
   }
 
+  if (getuid() != 0) {
+    errx(1, "root is required");
+  }
+
+  // Check to see if the process exists and that we can actually send a signal to it.
+  android::procinfo::ProcessInfo proc_info;
+  if (!android::procinfo::GetProcessInfo(pid, &proc_info)) {
+    err(1, "failed to fetch info for process %d", pid);
+  }
+
+  if (proc_info.state == android::procinfo::kProcessStateZombie) {
+    errx(1, "process %d is a zombie", pid);
+  }
+
+  if (kill(pid, 0) != 0) {
+    err(1, "cannot send signal to process %d", pid);
+  }
+
   unique_fd piperead, pipewrite;
   if (!Pipe(&piperead, &pipewrite)) {
     err(1, "failed to create pipe");
diff --git a/debuggerd/tombstoned/tombstoned.cpp b/debuggerd/tombstoned/tombstoned.cpp
index 7685476..93c7fb5 100644
--- a/debuggerd/tombstoned/tombstoned.cpp
+++ b/debuggerd/tombstoned/tombstoned.cpp
@@ -32,6 +32,7 @@
 #include <event2/thread.h>
 
 #include <android-base/logging.h>
+#include <android-base/properties.h>
 #include <android-base/stringprintf.h>
 #include <android-base/unique_fd.h>
 #include <cutils/sockets.h>
@@ -43,6 +44,7 @@
 
 #include "intercept_manager.h"
 
+using android::base::GetIntProperty;
 using android::base::StringPrintf;
 using android::base::unique_fd;
 
@@ -53,7 +55,19 @@
   kCrashStatusQueued,
 };
 
-struct Crash;
+// Ownership of Crash is a bit messy.
+// It's either owned by an active event that must have a timeout, or owned by
+// queued_requests, in the case that multiple crashes come in at the same time.
+struct Crash {
+  ~Crash() { event_free(crash_event); }
+
+  unique_fd crash_fd;
+  pid_t crash_pid;
+  event* crash_event = nullptr;
+  std::string crash_path;
+
+  DebuggerdDumpType crash_type;
+};
 
 class CrashQueue {
  public:
@@ -77,6 +91,24 @@
     find_oldest_artifact();
   }
 
+  static CrashQueue* for_crash(const Crash* crash) {
+    return (crash->crash_type == kDebuggerdJavaBacktrace) ? for_anrs() : for_tombstones();
+  }
+
+  static CrashQueue* for_tombstones() {
+    static CrashQueue queue("/data/tombstones", "tombstone_" /* file_name_prefix */,
+                            GetIntProperty("tombstoned.max_tombstone_count", 10),
+                            1 /* max_concurrent_dumps */);
+    return &queue;
+  }
+
+  static CrashQueue* for_anrs() {
+    static CrashQueue queue("/data/anr", "trace_" /* file_name_prefix */,
+                            GetIntProperty("tombstoned.max_anr_count", 64),
+                            4 /* max_concurrent_dumps */);
+    return &queue;
+  }
+
   std::pair<unique_fd, std::string> get_output() {
     unique_fd result;
     std::string file_name = StringPrintf("%s%02d", file_name_prefix_.c_str(), next_artifact_);
@@ -118,9 +150,6 @@
 
   void on_crash_completed() { --num_concurrent_dumps_; }
 
-  static CrashQueue* const tombstone;
-  static CrashQueue* const java_trace;
-
  private:
   void find_oldest_artifact() {
     size_t oldest_tombstone = 0;
@@ -167,37 +196,6 @@
 // Whether java trace dumps are produced via tombstoned.
 static constexpr bool kJavaTraceDumpsEnabled = true;
 
-/* static */ CrashQueue* const CrashQueue::tombstone =
-    new CrashQueue("/data/tombstones", "tombstone_" /* file_name_prefix */, 10 /* max_artifacts */,
-                   1 /* max_concurrent_dumps */);
-
-/* static */ CrashQueue* const CrashQueue::java_trace =
-    (kJavaTraceDumpsEnabled ? new CrashQueue("/data/anr", "trace_" /* file_name_prefix */,
-                                             64 /* max_artifacts */, 4 /* max_concurrent_dumps */)
-                            : nullptr);
-
-// Ownership of Crash is a bit messy.
-// It's either owned by an active event that must have a timeout, or owned by
-// queued_requests, in the case that multiple crashes come in at the same time.
-struct Crash {
-  ~Crash() { event_free(crash_event); }
-
-  unique_fd crash_fd;
-  pid_t crash_pid;
-  event* crash_event = nullptr;
-  std::string crash_path;
-
-  DebuggerdDumpType crash_type;
-};
-
-static CrashQueue* get_crash_queue(const Crash* crash) {
-  if (crash->crash_type == kDebuggerdJavaBacktrace) {
-    return CrashQueue::java_trace;
-  }
-
-  return CrashQueue::tombstone;
-}
-
 // Forward declare the callbacks so they can be placed in a sensible order.
 static void crash_accept_cb(evconnlistener* listener, evutil_socket_t sockfd, sockaddr*, int, void*);
 static void crash_request_cb(evutil_socket_t sockfd, short ev, void* arg);
@@ -206,7 +204,7 @@
 static void perform_request(Crash* crash) {
   unique_fd output_fd;
   if (!intercept_manager->GetIntercept(crash->crash_pid, crash->crash_type, &output_fd)) {
-    std::tie(output_fd, crash->crash_path) = get_crash_queue(crash)->get_output();
+    std::tie(output_fd, crash->crash_path) = CrashQueue::for_crash(crash)->get_output();
   }
 
   TombstonedCrashPacket response = {
@@ -229,7 +227,7 @@
     event_add(crash->crash_event, &timeout);
   }
 
-  get_crash_queue(crash)->on_crash_started();
+  CrashQueue::for_crash(crash)->on_crash_started();
   return;
 
 fail:
@@ -305,7 +303,7 @@
 
   LOG(INFO) << "received crash request for pid " << crash->crash_pid;
 
-  if (get_crash_queue(crash)->maybe_enqueue_crash(crash)) {
+  if (CrashQueue::for_crash(crash)->maybe_enqueue_crash(crash)) {
     LOG(INFO) << "enqueueing crash request for pid " << crash->crash_pid;
   } else {
     perform_request(crash);
@@ -322,7 +320,7 @@
   Crash* crash = static_cast<Crash*>(arg);
   TombstonedCrashPacket request = {};
 
-  get_crash_queue(crash)->on_crash_completed();
+  CrashQueue::for_crash(crash)->on_crash_completed();
 
   if ((ev & EV_READ) == 0) {
     goto fail;
@@ -356,7 +354,7 @@
   }
 
 fail:
-  CrashQueue* queue = get_crash_queue(crash);
+  CrashQueue* queue = CrashQueue::for_crash(crash);
   delete crash;
 
   // If there's something queued up, let them proceed.
@@ -392,7 +390,7 @@
   intercept_manager = new InterceptManager(base, intercept_socket);
 
   evconnlistener* tombstone_listener = evconnlistener_new(
-      base, crash_accept_cb, CrashQueue::tombstone, -1, LEV_OPT_CLOSE_ON_FREE, crash_socket);
+      base, crash_accept_cb, CrashQueue::for_tombstones(), -1, LEV_OPT_CLOSE_ON_FREE, crash_socket);
   if (!tombstone_listener) {
     LOG(FATAL) << "failed to create evconnlistener for tombstones.";
   }
@@ -405,7 +403,7 @@
 
     evutil_make_socket_nonblocking(java_trace_socket);
     evconnlistener* java_trace_listener = evconnlistener_new(
-        base, crash_accept_cb, CrashQueue::java_trace, -1, LEV_OPT_CLOSE_ON_FREE, java_trace_socket);
+        base, crash_accept_cb, CrashQueue::for_anrs(), -1, LEV_OPT_CLOSE_ON_FREE, java_trace_socket);
     if (!java_trace_listener) {
       LOG(FATAL) << "failed to create evconnlistener for java traces.";
     }
diff --git a/fs_mgr/Android.bp b/fs_mgr/Android.bp
index 0af6159..608917a 100644
--- a/fs_mgr/Android.bp
+++ b/fs_mgr/Android.bp
@@ -21,18 +21,6 @@
     },
     local_include_dirs: ["include/"],
     cppflags: ["-Werror"],
-    static_libs: [
-        "liblogwrap",
-        "libfec",
-        "libfec_rs",
-        "libbase",
-        "libcrypto_utils",
-        "libcrypto",
-        "libext4_utils",
-        "libsquashfs_utils",
-        "libselinux",
-        "libavb",
-    ],
 }
 
 cc_library_static {
@@ -44,12 +32,28 @@
         "fs_mgr.cpp",
         "fs_mgr_dm_ioctl.cpp",
         "fs_mgr_format.cpp",
-        "fs_mgr_fstab.cpp",
-        "fs_mgr_slotselect.cpp",
         "fs_mgr_verity.cpp",
         "fs_mgr_avb.cpp",
         "fs_mgr_avb_ops.cpp",
-        "fs_mgr_boot_config.cpp",
+    ],
+    static_libs: [
+        "liblogwrap",
+        "libfec",
+        "libfec_rs",
+        "libbase",
+        "libcrypto_utils",
+        "libcrypto",
+        "libext4_utils",
+        "libsquashfs_utils",
+        "libselinux",
+        "libavb",
+        "libfstab",
+    ],
+    export_static_lib_headers: [
+        "libfstab",
+    ],
+    whole_static_libs: [
+        "libfstab",
     ],
     product_variables: {
         debuggable: {
@@ -60,3 +64,16 @@
         },
     },
 }
+
+cc_library_static {
+    name: "libfstab",
+    vendor_available: true,
+    defaults: ["fs_mgr_defaults"],
+    srcs: [
+        "fs_mgr_fstab.cpp",
+        "fs_mgr_boot_config.cpp",
+        "fs_mgr_slotselect.cpp",
+    ],
+    export_include_dirs: ["include_fstab"],
+    header_libs: ["libbase_headers"],
+}
diff --git a/fs_mgr/fs_mgr_verity.cpp b/fs_mgr/fs_mgr_verity.cpp
index 1d832b3..8fa9370 100644
--- a/fs_mgr/fs_mgr_verity.cpp
+++ b/fs_mgr/fs_mgr_verity.cpp
@@ -348,10 +348,13 @@
 
 static int was_verity_restart()
 {
-    static const char *files[] = {
+    static const char* files[] = {
+        // clang-format off
+        "/sys/fs/pstore/console-ramoops-0",
         "/sys/fs/pstore/console-ramoops",
         "/proc/last_kmsg",
         NULL
+        // clang-format on
     };
     int i;
 
diff --git a/fs_mgr/include/fs_mgr.h b/fs_mgr/include/fs_mgr.h
index 047fd54..3d3faf3 100644
--- a/fs_mgr/include/fs_mgr.h
+++ b/fs_mgr/include/fs_mgr.h
@@ -22,11 +22,7 @@
 #include <stdbool.h>
 #include <linux/dm-ioctl.h>
 
-// C++ only headers
-// TODO: move this into separate header files under include/fs_mgr/*.h
-#ifdef __cplusplus
-#include <string>
-#endif
+#include <fstab/fstab.h>
 
 // Magic number at start of verity metadata
 #define VERITY_METADATA_MAGIC_NUMBER 0xb001b001
@@ -53,47 +49,10 @@
     MOUNT_MODE_LATE = 2
 };
 
-/*
- * The entries must be kept in the same order as they were seen in the fstab.
- * Unless explicitly requested, a lookup on mount point should always
- * return the 1st one.
- */
-struct fstab {
-    int num_entries;
-    struct fstab_rec *recs;
-    char *fstab_filename;
-};
-
-struct fstab_rec {
-    char *blk_device;
-    char *mount_point;
-    char *fs_type;
-    unsigned long flags;
-    char *fs_options;
-    int fs_mgr_flags;
-    char *key_loc;
-    char *verity_loc;
-    long long length;
-    char *label;
-    int partnum;
-    int swap_prio;
-    int max_comp_streams;
-    unsigned int zram_size;
-    uint64_t reserved_size;
-    unsigned int file_encryption_mode;
-    unsigned int erase_blk_size;
-    unsigned int logical_blk_size;
-};
-
 // Callback function for verity status
 typedef void (*fs_mgr_verity_state_callback)(struct fstab_rec *fstab,
         const char *mount_point, int mode, int status);
 
-struct fstab *fs_mgr_read_fstab_default();
-struct fstab *fs_mgr_read_fstab_dt();
-struct fstab *fs_mgr_read_fstab(const char *fstab_path);
-void fs_mgr_free_fstab(struct fstab *fstab);
-
 #define FS_MGR_MNTALL_DEV_FILE_ENCRYPTED 5
 #define FS_MGR_MNTALL_DEV_NEEDS_RECOVERY 4
 #define FS_MGR_MNTALL_DEV_NEEDS_ENCRYPTION 3
@@ -116,26 +75,6 @@
                           char *real_blk_device, int size);
 bool fs_mgr_load_verity_state(int* mode);
 bool fs_mgr_update_verity_state(fs_mgr_verity_state_callback callback);
-int fs_mgr_add_entry(struct fstab *fstab,
-                     const char *mount_point, const char *fs_type,
-                     const char *blk_device);
-struct fstab_rec *fs_mgr_get_entry_for_mount_point(struct fstab *fstab, const char *path);
-int fs_mgr_is_voldmanaged(const struct fstab_rec *fstab);
-int fs_mgr_is_nonremovable(const struct fstab_rec *fstab);
-int fs_mgr_is_verified(const struct fstab_rec *fstab);
-int fs_mgr_is_verifyatboot(const struct fstab_rec *fstab);
-int fs_mgr_is_avb(const struct fstab_rec *fstab);
-int fs_mgr_is_encryptable(const struct fstab_rec *fstab);
-int fs_mgr_is_file_encrypted(const struct fstab_rec *fstab);
-const char* fs_mgr_get_file_encryption_mode(const struct fstab_rec *fstab);
-int fs_mgr_is_convertible_to_fbe(const struct fstab_rec *fstab);
-int fs_mgr_is_noemulatedsd(const struct fstab_rec *fstab);
-int fs_mgr_is_notrim(struct fstab_rec *fstab);
-int fs_mgr_is_formattable(struct fstab_rec *fstab);
-int fs_mgr_is_slotselect(struct fstab_rec *fstab);
-int fs_mgr_is_nofail(struct fstab_rec *fstab);
-int fs_mgr_is_latemount(struct fstab_rec *fstab);
-int fs_mgr_is_quota(struct fstab_rec *fstab);
 int fs_mgr_swapon_all(struct fstab *fstab);
 
 int fs_mgr_do_format(struct fstab_rec *fstab, bool reserve_footer);
@@ -148,10 +87,4 @@
 
 __END_DECLS
 
-// C++ only functions
-// TODO: move this into separate header files under include/fs_mgr/*.h
-#ifdef __cplusplus
-std::string fs_mgr_get_slot_suffix();
-#endif
-
 #endif /* __CORE_FS_MGR_H */
diff --git a/fs_mgr/include_fstab/fstab/fstab.h b/fs_mgr/include_fstab/fstab/fstab.h
new file mode 100644
index 0000000..3ea4e03
--- /dev/null
+++ b/fs_mgr/include_fstab/fstab/fstab.h
@@ -0,0 +1,98 @@
+/*
+ * 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.
+ */
+
+#ifndef __CORE_FS_TAB_H
+#define __CORE_FS_TAB_H
+
+#include <linux/dm-ioctl.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+
+// C++ only headers
+// TODO: move this into separate header files under include/fs_mgr/*.h
+#ifdef __cplusplus
+#include <string>
+#endif
+
+__BEGIN_DECLS
+
+/*
+ * The entries must be kept in the same order as they were seen in the fstab.
+ * Unless explicitly requested, a lookup on mount point should always
+ * return the 1st one.
+ */
+struct fstab {
+    int num_entries;
+    struct fstab_rec* recs;
+    char* fstab_filename;
+};
+
+struct fstab_rec {
+    char* blk_device;
+    char* mount_point;
+    char* fs_type;
+    unsigned long flags;
+    char* fs_options;
+    int fs_mgr_flags;
+    char* key_loc;
+    char* verity_loc;
+    long long length;
+    char* label;
+    int partnum;
+    int swap_prio;
+    int max_comp_streams;
+    unsigned int zram_size;
+    uint64_t reserved_size;
+    unsigned int file_encryption_mode;
+    unsigned int erase_blk_size;
+    unsigned int logical_blk_size;
+};
+
+struct fstab* fs_mgr_read_fstab_default();
+struct fstab* fs_mgr_read_fstab_dt();
+struct fstab* fs_mgr_read_fstab(const char* fstab_path);
+void fs_mgr_free_fstab(struct fstab* fstab);
+
+int fs_mgr_add_entry(struct fstab* fstab, const char* mount_point, const char* fs_type,
+                     const char* blk_device);
+struct fstab_rec* fs_mgr_get_entry_for_mount_point(struct fstab* fstab, const char* path);
+int fs_mgr_is_voldmanaged(const struct fstab_rec* fstab);
+int fs_mgr_is_nonremovable(const struct fstab_rec* fstab);
+int fs_mgr_is_verified(const struct fstab_rec* fstab);
+int fs_mgr_is_verifyatboot(const struct fstab_rec* fstab);
+int fs_mgr_is_avb(const struct fstab_rec* fstab);
+int fs_mgr_is_encryptable(const struct fstab_rec* fstab);
+int fs_mgr_is_file_encrypted(const struct fstab_rec* fstab);
+const char* fs_mgr_get_file_encryption_mode(const struct fstab_rec* fstab);
+int fs_mgr_is_convertible_to_fbe(const struct fstab_rec* fstab);
+int fs_mgr_is_noemulatedsd(const struct fstab_rec* fstab);
+int fs_mgr_is_notrim(struct fstab_rec* fstab);
+int fs_mgr_is_formattable(struct fstab_rec* fstab);
+int fs_mgr_is_slotselect(struct fstab_rec* fstab);
+int fs_mgr_is_nofail(struct fstab_rec* fstab);
+int fs_mgr_is_latemount(struct fstab_rec* fstab);
+int fs_mgr_is_quota(struct fstab_rec* fstab);
+
+__END_DECLS
+
+// C++ only functions
+// TODO: move this into separate header files under include/fs_mgr/*.h
+#ifdef __cplusplus
+std::string fs_mgr_get_slot_suffix();
+#endif
+
+#endif /* __CORE_FS_TAB_H */
diff --git a/healthd/healthd_mode_charger.cpp b/healthd/healthd_mode_charger.cpp
index 91774c6..d7d1454 100644
--- a/healthd/healthd_mode_charger.cpp
+++ b/healthd/healthd_mode_charger.cpp
@@ -33,6 +33,7 @@
 #include <functional>
 
 #include <android-base/file.h>
+#include <android-base/macros.h>
 #include <android-base/stringprintf.h>
 
 #include <sys/socket.h>
@@ -76,8 +77,6 @@
 #define POWER_ON_KEY_TIME       (2 * MSEC_PER_SEC)
 #define UNPLUGGED_SHUTDOWN_TIME (10 * MSEC_PER_SEC)
 
-#define LAST_KMSG_PATH          "/proc/last_kmsg"
-#define LAST_KMSG_PSTORE_PATH   "/sys/fs/pstore/console-ramoops"
 #define LAST_KMSG_MAX_SZ        (32 * 1024)
 
 #define LOGE(x...) do { KLOG_ERROR("charger", x); } while (0)
@@ -217,14 +216,21 @@
     LOGW("\n");
     LOGW("*************** LAST KMSG ***************\n");
     LOGW("\n");
-    buf = (char *)load_file(LAST_KMSG_PSTORE_PATH, &sz);
+    const char* kmsg[] = {
+        // clang-format off
+        "/sys/fs/pstore/console-ramoops-0",
+        "/sys/fs/pstore/console-ramoops",
+        "/proc/last_kmsg",
+        // clang-format on
+    };
+    for (size_t i = 0; i < arraysize(kmsg); ++i) {
+        buf = (char*)load_file(kmsg[i], &sz);
+        if (buf && sz) break;
+    }
 
     if (!buf || !sz) {
-        buf = (char *)load_file(LAST_KMSG_PATH, &sz);
-        if (!buf || !sz) {
-            LOGW("last_kmsg not found. Cold reset?\n");
-            goto out;
-        }
+        LOGW("last_kmsg not found. Cold reset?\n");
+        goto out;
     }
 
     len = min(sz, LAST_KMSG_MAX_SZ);
diff --git a/libcutils/fs_config.cpp b/libcutils/fs_config.cpp
index 919b65b..13c4abf 100644
--- a/libcutils/fs_config.cpp
+++ b/libcutils/fs_config.cpp
@@ -266,14 +266,27 @@
     return false;
 }
 
+static inline bool prefix_cmp(bool partial, const char* prefix, size_t len, const char* path,
+                              size_t plen) {
+    return ((partial && plen >= len) || (plen == len)) && !strncmp(prefix, path, len);
+}
+
 // alias prefixes of "<partition>/<stuff>" to "system/<partition>/<stuff>" or
 // "system/<partition>/<stuff>" to "<partition>/<stuff>"
-static bool prefix_cmp(const char* prefix, const char* path, size_t len) {
-    if (!strncmp(prefix, path, len)) return true;
+static bool fs_config_cmp(bool partial, const char* prefix, size_t len, const char* path,
+                          size_t plen) {
+    // If name ends in * then allow partial matches.
+    if (!partial && prefix[len - 1] == '*') {
+        len--;
+        partial = true;
+    }
+
+    if (prefix_cmp(partial, prefix, len, path, plen)) return true;
 
     static const char system[] = "system/";
     if (!strncmp(path, system, strlen(system))) {
         path += strlen(system);
+        plen -= strlen(system);
     } else if (len <= strlen(system)) {
         return false;
     } else if (strncmp(prefix, system, strlen(system))) {
@@ -282,25 +295,11 @@
         prefix += strlen(system);
         len -= strlen(system);
     }
-    return is_partition(prefix, len) && !strncmp(prefix, path, len);
+    return is_partition(prefix, len) && prefix_cmp(partial, prefix, len, path, plen);
 }
-
-static bool fs_config_cmp(bool dir, const char* prefix, size_t len, const char* path, size_t plen) {
-    if (dir) {
-        if (plen < len) {
-            return false;
-        }
-    } else {
-        // If name ends in * then allow partial matches.
-        if (prefix[len - 1] == '*') {
-            return prefix_cmp(prefix, path, len - 1);
-        }
-        if (plen != len) {
-            return false;
-        }
-    }
-    return prefix_cmp(prefix, path, len);
-}
+#ifndef __ANDROID_VNDK__
+auto __for_testing_only__fs_config_cmp = fs_config_cmp;
+#endif
 
 void fs_config(const char* path, int dir, const char* target_out_path, unsigned* uid, unsigned* gid,
                unsigned* mode, uint64_t* capabilities) {
diff --git a/libcutils/sched_policy.cpp b/libcutils/sched_policy.cpp
index e853744..bc40ba9 100644
--- a/libcutils/sched_policy.cpp
+++ b/libcutils/sched_policy.cpp
@@ -116,9 +116,7 @@
     on where init.rc mounts cpuset. That's why we'd better require this
     configuration be set if CONFIG_CPUSETS is set.
 
-    With runtime check using the following function, build time
-    variables like ENABLE_CPUSETS (used in Android.mk) or cpusets (used
-    in Android.bp) are not needed.
+    In older releases, this was controlled by build-time configuration.
  */
 
 bool cpusets_enabled() {
diff --git a/libcutils/tests/fs_config.cpp b/libcutils/tests/fs_config.cpp
index a62cd51..391adb6 100644
--- a/libcutils/tests/fs_config.cpp
+++ b/libcutils/tests/fs_config.cpp
@@ -29,12 +29,39 @@
 
 extern const fs_path_config* __for_testing_only__android_dirs;
 extern const fs_path_config* __for_testing_only__android_files;
+extern bool (*__for_testing_only__fs_config_cmp)(bool, const char*, size_t, const char*, size_t);
 
 // Maximum entries in system/core/libcutils/fs_config.cpp:android_* before we
 // hit a nullptr termination, before we declare the list is just too big or
 // could be missing the nullptr.
 static constexpr size_t max_idx = 4096;
 
+static const struct fs_config_cmp_test {
+    bool dir;
+    const char* prefix;
+    const char* path;
+    bool match;
+} fs_config_cmp_tests[] = {
+    // clang-format off
+    { true,  "system/lib",             "system/lib/hw",           true  },
+    { true,  "vendor/lib",             "system/vendor/lib/hw",    true  },
+    { true,  "system/vendor/lib",      "vendor/lib/hw",           true  },
+    { true,  "system/vendor/lib",      "system/vendor/lib/hw",    true  },
+    { false, "vendor/bin/wifi",        "system/vendor/bin/w",     false },
+    { false, "vendor/bin/wifi",        "system/vendor/bin/wifi",  true  },
+    { false, "vendor/bin/wifi",        "system/vendor/bin/wifi2", false },
+    { false, "system/vendor/bin/wifi", "system/vendor/bin/wifi",  true, },
+    { false, "odm/bin/wifi",           "system/odm/bin/wifi",     true  },
+    { false, "oem/bin/wifi",           "system/oem/bin/wifi",     true  },
+    { false, "data/bin/wifi",          "system/data/bin/wifi",    false },
+    { false, "system/bin/*",           "system/bin/wifi",         true  },
+    { false, "vendor/bin/*",           "system/vendor/bin/wifi",  true  },
+    { false, "system/bin/*",           "system/bin",              false },
+    { false, "system/vendor/bin/*",    "vendor/bin/wifi",         true  },
+    { false, NULL,                     NULL,                      false },
+    // clang-format on
+};
+
 static bool check_unique(std::vector<const char*>& paths, const std::string& config_name,
                          const std::string& prefix) {
     bool retval = false;
@@ -106,6 +133,22 @@
     return check_unique(paths_tmp, config, prefix) || retval;
 }
 
+static bool check_fs_config_cmp(const fs_config_cmp_test* tests) {
+    bool match, retval = false;
+    for (size_t idx = 0; tests[idx].prefix; ++idx) {
+        match = __for_testing_only__fs_config_cmp(tests[idx].dir, tests[idx].prefix,
+                                                  strlen(tests[idx].prefix), tests[idx].path,
+                                                  strlen(tests[idx].path));
+        if (match != tests[idx].match) {
+            GTEST_LOG_(ERROR) << tests[idx].path << (match ? " matched " : " didn't match ")
+                              << tests[idx].prefix;
+            retval = true;
+            break;
+        }
+    }
+    return retval;
+}
+
 #define endof(pointer, field) (offsetof(typeof(*(pointer)), field) + sizeof((pointer)->field))
 
 static bool check_unique(const std::string& config, const std::string& prefix) {
@@ -199,3 +242,7 @@
 TEST(fs_config, odm_files_alias) {
     check_two(__for_testing_only__android_files, "files", "odm/");
 }
+
+TEST(fs_config, system_alias) {
+    EXPECT_FALSE(check_fs_config_cmp(fs_config_cmp_tests));
+}
diff --git a/libprocinfo/include/procinfo/process.h b/libprocinfo/include/procinfo/process.h
index fb140ff..db56fc1 100644
--- a/libprocinfo/include/procinfo/process.h
+++ b/libprocinfo/include/procinfo/process.h
@@ -35,8 +35,18 @@
 
 #if defined(__linux__)
 
+enum ProcessState {
+  kProcessStateUnknown,
+  kProcessStateRunning,
+  kProcessStateSleeping,
+  kProcessStateUninterruptibleWait,
+  kProcessStateStopped,
+  kProcessStateZombie,
+};
+
 struct ProcessInfo {
   std::string name;
+  ProcessState state;
   pid_t tid;
   pid_t pid;
   pid_t ppid;
diff --git a/libprocinfo/process.cpp b/libprocinfo/process.cpp
index c513e16..6e5be6e 100644
--- a/libprocinfo/process.cpp
+++ b/libprocinfo/process.cpp
@@ -44,6 +44,24 @@
   return GetProcessInfoFromProcPidFd(dirfd.get(), process_info);
 }
 
+static ProcessState parse_state(const char* state) {
+  switch (*state) {
+    case 'R':
+      return kProcessStateRunning;
+    case 'S':
+      return kProcessStateSleeping;
+    case 'D':
+      return kProcessStateUninterruptibleWait;
+    case 'T':
+      return kProcessStateStopped;
+    case 'Z':
+      return kProcessStateZombie;
+    default:
+      LOG(ERROR) << "unknown process state: " << *state;
+      return kProcessStateUnknown;
+  }
+}
+
 bool GetProcessInfoFromProcPidFd(int fd, ProcessInfo* process_info) {
   int status_fd = openat(fd, "status", O_RDONLY | O_CLOEXEC);
 
@@ -60,7 +78,7 @@
   }
 
   int field_bitmap = 0;
-  static constexpr int finished_bitmap = 127;
+  static constexpr int finished_bitmap = 255;
   char* line = nullptr;
   size_t len = 0;
 
@@ -98,6 +116,9 @@
     } else if (header == "Gid:") {
       process_info->gid = atoi(tab + 1);
       field_bitmap |= 64;
+    } else if (header == "State:") {
+      process_info->state = parse_state(tab + 1);
+      field_bitmap |= 128;
     }
   }
 
diff --git a/libprocinfo/process_test.cpp b/libprocinfo/process_test.cpp
index 5ffd236..9da9278 100644
--- a/libprocinfo/process_test.cpp
+++ b/libprocinfo/process_test.cpp
@@ -21,6 +21,7 @@
 #include <sys/types.h>
 #include <unistd.h>
 
+#include <chrono>
 #include <set>
 #include <thread>
 #include <vector>
@@ -29,6 +30,8 @@
 
 #include <android-base/stringprintf.h>
 
+using namespace std::chrono_literals;
+
 #if !defined(__BIONIC__)
 #include <syscall.h>
 static pid_t gettid() {
@@ -82,3 +85,34 @@
     }
   }).join();
 }
+
+TEST(process_info, process_state) {
+  int pipefd[2];
+  ASSERT_EQ(0, pipe2(pipefd, O_CLOEXEC));
+  pid_t forkpid = fork();
+
+  ASSERT_NE(-1, forkpid);
+  if (forkpid == 0) {
+    close(pipefd[1]);
+    char buf;
+    TEMP_FAILURE_RETRY(read(pipefd[0], &buf, 1));
+    _exit(0);
+  }
+
+  // Give the child some time to get to the read.
+  std::this_thread::sleep_for(100ms);
+
+  android::procinfo::ProcessInfo procinfo;
+  ASSERT_TRUE(android::procinfo::GetProcessInfo(forkpid, &procinfo));
+  ASSERT_EQ(android::procinfo::kProcessStateSleeping, procinfo.state);
+
+  ASSERT_EQ(0, kill(forkpid, SIGKILL));
+
+  // Give the kernel some time to kill the child.
+  std::this_thread::sleep_for(100ms);
+
+  ASSERT_TRUE(android::procinfo::GetProcessInfo(forkpid, &procinfo));
+  ASSERT_EQ(android::procinfo::kProcessStateZombie, procinfo.state);
+
+  ASSERT_EQ(forkpid, waitpid(forkpid, nullptr, 0));
+}
diff --git a/libunwindstack/Android.bp b/libunwindstack/Android.bp
index d7e949b..31837a2 100644
--- a/libunwindstack/Android.bp
+++ b/libunwindstack/Android.bp
@@ -57,16 +57,17 @@
         "ElfInterface.cpp",
         "ElfInterfaceArm.cpp",
         "Log.cpp",
-        "Regs.cpp",
         "MapInfo.cpp",
         "Maps.cpp",
         "Memory.cpp",
+        "Regs.cpp",
         "Symbols.cpp",
     ],
 
     shared_libs: [
         "libbase",
         "liblog",
+        "liblzma",
     ],
 }
 
@@ -128,6 +129,7 @@
     shared_libs: [
         "libbase",
         "liblog",
+        "liblzma",
     ],
 
     static_libs: [
@@ -151,6 +153,11 @@
     shared_libs: [
         "libunwindstack",
     ],
+
+    data: [
+        "tests/elf32.xz",
+        "tests/elf64.xz",
+    ],
 }
 
 // These unit tests run against the static debug library.
@@ -161,6 +168,11 @@
     static_libs: [
         "libunwindstack_debug",
     ],
+
+    data: [
+        "tests/elf32.xz",
+        "tests/elf64.xz",
+    ],
 }
 
 //-------------------------------------------------------------------------
@@ -173,6 +185,7 @@
     shared_libs: [
         "libunwindstack",
         "libbase",
+        "liblzma",
     ],
 
     static_libs: [
@@ -190,3 +203,19 @@
         "unwind_info.cpp",
     ],
 }
+
+// Generates the elf data for use in the tests for .gnu_debugdata frames.
+// Once these files are generated, use the xz command to compress the data.
+cc_binary_host {
+    name: "gen_gnudebugdata",
+
+    cflags: [
+        "-Wall",
+        "-Werror",
+        "-Wextra",
+    ],
+
+    srcs: [
+        "tests/GenGnuDebugdata.cpp",
+    ],
+}
diff --git a/libunwindstack/Elf.cpp b/libunwindstack/Elf.cpp
index 272b5f0..ad1447a 100644
--- a/libunwindstack/Elf.cpp
+++ b/libunwindstack/Elf.cpp
@@ -49,6 +49,28 @@
   return valid_;
 }
 
+// It is expensive to initialize the .gnu_debugdata section. Provide a method
+// to initialize this data separately.
+void Elf::InitGnuDebugdata() {
+  if (!valid_ || interface_->gnu_debugdata_offset() == 0) {
+    return;
+  }
+
+  gnu_debugdata_memory_.reset(interface_->CreateGnuDebugdataMemory());
+  gnu_debugdata_interface_.reset(CreateInterfaceFromMemory(gnu_debugdata_memory_.get()));
+  ElfInterface* gnu = gnu_debugdata_interface_.get();
+  if (gnu == nullptr) {
+    return;
+  }
+  if (gnu->Init()) {
+    gnu->InitHeaders();
+  } else {
+    // Free all of the memory associated with the gnu_debugdata section.
+    gnu_debugdata_memory_.reset(nullptr);
+    gnu_debugdata_interface_.reset(nullptr);
+  }
+}
+
 bool Elf::IsValidElf(Memory* memory) {
   if (memory == nullptr) {
     return false;
diff --git a/libunwindstack/Elf.h b/libunwindstack/Elf.h
index f9db541..cff9dc4 100644
--- a/libunwindstack/Elf.h
+++ b/libunwindstack/Elf.h
@@ -46,11 +46,15 @@
   }
 
   bool GetFunctionName(uint64_t addr, std::string* name, uint64_t* func_offset) {
-    return valid_ && interface_->GetFunctionName(addr, name, func_offset);
+    return valid_ && (interface_->GetFunctionName(addr, name, func_offset) ||
+                      (gnu_debugdata_interface_ &&
+                       gnu_debugdata_interface_->GetFunctionName(addr, name, func_offset)));
   }
 
   bool Step(uint64_t rel_pc, Regs* regs, Memory* process_memory) {
-    return valid_ && interface_->Step(rel_pc, regs, process_memory);
+    return valid_ && (interface_->Step(rel_pc, regs, process_memory) ||
+                      (gnu_debugdata_interface_ &&
+                       gnu_debugdata_interface_->Step(rel_pc, regs, process_memory)));
   }
 
   ElfInterface* CreateInterfaceFromMemory(Memory* memory);
@@ -65,6 +69,8 @@
 
   ElfInterface* interface() { return interface_.get(); }
 
+  ElfInterface* gnu_debugdata_interface() { return gnu_debugdata_interface_.get(); }
+
   static bool IsValidElf(Memory* memory);
 
  protected:
@@ -73,6 +79,9 @@
   std::unique_ptr<Memory> memory_;
   uint32_t machine_type_;
   uint8_t class_type_;
+
+  std::unique_ptr<Memory> gnu_debugdata_memory_;
+  std::unique_ptr<ElfInterface> gnu_debugdata_interface_;
 };
 
 #endif  // _LIBUNWINDSTACK_ELF_H
diff --git a/libunwindstack/ElfInterface.cpp b/libunwindstack/ElfInterface.cpp
index 3a7f7cb..7d38ee0 100644
--- a/libunwindstack/ElfInterface.cpp
+++ b/libunwindstack/ElfInterface.cpp
@@ -20,6 +20,10 @@
 #include <memory>
 #include <string>
 
+#include <7zCrc.h>
+#include <Xz.h>
+#include <XzCrc64.h>
+
 #include "DwarfDebugFrame.h"
 #include "DwarfEhFrame.h"
 #include "DwarfSection.h"
@@ -35,6 +39,60 @@
   }
 }
 
+Memory* ElfInterface::CreateGnuDebugdataMemory() {
+  if (gnu_debugdata_offset_ == 0 || gnu_debugdata_size_ == 0) {
+    return nullptr;
+  }
+
+  // TODO: Only call these initialization functions once.
+  CrcGenerateTable();
+  Crc64GenerateTable();
+
+  std::vector<uint8_t> src(gnu_debugdata_size_);
+  if (!memory_->Read(gnu_debugdata_offset_, src.data(), gnu_debugdata_size_)) {
+    gnu_debugdata_offset_ = 0;
+    gnu_debugdata_size_ = static_cast<uint64_t>(-1);
+    return nullptr;
+  }
+
+  ISzAlloc alloc;
+  CXzUnpacker state;
+  alloc.Alloc = [](void*, size_t size) { return malloc(size); };
+  alloc.Free = [](void*, void* ptr) { return free(ptr); };
+
+  XzUnpacker_Construct(&state, &alloc);
+
+  std::unique_ptr<MemoryBuffer> dst(new MemoryBuffer);
+  int return_val;
+  size_t src_offset = 0;
+  size_t dst_offset = 0;
+  ECoderStatus status;
+  dst->Resize(5 * gnu_debugdata_size_);
+  do {
+    size_t src_remaining = src.size() - src_offset;
+    size_t dst_remaining = dst->Size() - dst_offset;
+    if (dst_remaining < 2 * gnu_debugdata_size_) {
+      dst->Resize(dst->Size() + 2 * gnu_debugdata_size_);
+      dst_remaining += 2 * gnu_debugdata_size_;
+    }
+    return_val = XzUnpacker_Code(&state, dst->GetPtr(dst_offset), &dst_remaining, &src[src_offset],
+                                 &src_remaining, CODER_FINISH_ANY, &status);
+    src_offset += src_remaining;
+    dst_offset += dst_remaining;
+  } while (return_val == SZ_OK && status == CODER_STATUS_NOT_FINISHED);
+  XzUnpacker_Free(&state);
+  if (return_val != SZ_OK || !XzUnpacker_IsStreamWasFinished(&state)) {
+    gnu_debugdata_offset_ = 0;
+    gnu_debugdata_size_ = static_cast<uint64_t>(-1);
+    return nullptr;
+  }
+
+  // Shrink back down to the exact size.
+  dst->Resize(dst_offset);
+
+  return dst.release();
+}
+
 template <typename AddressType>
 void ElfInterface::InitHeadersWithTemplate() {
   if (eh_frame_offset_ != 0) {
diff --git a/libunwindstack/tests/ElfTest.cpp b/libunwindstack/tests/ElfTest.cpp
index 25fec8e..22cade2 100644
--- a/libunwindstack/tests/ElfTest.cpp
+++ b/libunwindstack/tests/ElfTest.cpp
@@ -15,6 +15,10 @@
  */
 
 #include <elf.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
 
 #include <gtest/gtest.h>
 
@@ -26,10 +30,6 @@
 #define PT_ARM_EXIDX 0x70000001
 #endif
 
-#if !defined(EM_AARCH64)
-#define EM_AARCH64 183
-#endif
-
 class ElfTest : public ::testing::Test {
  protected:
   void SetUp() override {
@@ -43,17 +43,18 @@
     ehdr->e_ident[EI_DATA] = ELFDATA2LSB;
     ehdr->e_ident[EI_VERSION] = EV_CURRENT;
     ehdr->e_ident[EI_OSABI] = ELFOSABI_SYSV;
+
+    ehdr->e_type = ET_DYN;
+    ehdr->e_version = EV_CURRENT;
   }
 
-  void InitElf32(uint32_t type) {
+  void InitElf32(uint32_t machine) {
     Elf32_Ehdr ehdr;
 
     InitEhdr<Elf32_Ehdr>(&ehdr);
     ehdr.e_ident[EI_CLASS] = ELFCLASS32;
 
-    ehdr.e_type = ET_DYN;
-    ehdr.e_machine = type;
-    ehdr.e_version = EV_CURRENT;
+    ehdr.e_machine = machine;
     ehdr.e_entry = 0;
     ehdr.e_phoff = 0x100;
     ehdr.e_shoff = 0;
@@ -64,7 +65,7 @@
     ehdr.e_shentsize = sizeof(Elf32_Shdr);
     ehdr.e_shnum = 0;
     ehdr.e_shstrndx = 0;
-    if (type == EM_ARM) {
+    if (machine == EM_ARM) {
       ehdr.e_flags = 0x5000200;
       ehdr.e_phnum = 2;
     }
@@ -82,7 +83,7 @@
     phdr.p_align = 0x1000;
     memory_->SetMemory(0x100, &phdr, sizeof(phdr));
 
-    if (type == EM_ARM) {
+    if (machine == EM_ARM) {
       memset(&phdr, 0, sizeof(phdr));
       phdr.p_type = PT_ARM_EXIDX;
       phdr.p_offset = 0x30000;
@@ -96,15 +97,13 @@
     }
   }
 
-  void InitElf64(uint32_t type) {
+  void InitElf64(uint32_t machine) {
     Elf64_Ehdr ehdr;
 
     InitEhdr<Elf64_Ehdr>(&ehdr);
     ehdr.e_ident[EI_CLASS] = ELFCLASS64;
 
-    ehdr.e_type = ET_DYN;
-    ehdr.e_machine = type;
-    ehdr.e_version = EV_CURRENT;
+    ehdr.e_machine = machine;
     ehdr.e_entry = 0;
     ehdr.e_phoff = 0x100;
     ehdr.e_shoff = 0;
@@ -130,6 +129,12 @@
     memory_->SetMemory(0x100, &phdr, sizeof(phdr));
   }
 
+  template <typename Ehdr, typename Shdr>
+  void GnuDebugdataInitFail(Ehdr* ehdr);
+
+  template <typename Ehdr, typename Shdr>
+  void GnuDebugdataInit(Ehdr* ehdr);
+
   MemoryFake* memory_;
 };
 
@@ -208,3 +213,154 @@
   ASSERT_EQ(ELFCLASS64, elf.class_type());
   ASSERT_TRUE(elf.interface() != nullptr);
 }
+
+template <typename Ehdr, typename Shdr>
+void ElfTest::GnuDebugdataInitFail(Ehdr* ehdr) {
+  Elf elf(memory_);
+
+  uint64_t offset = 0x2000;
+
+  ehdr->e_shoff = offset;
+  ehdr->e_shnum = 3;
+  ehdr->e_shentsize = sizeof(Shdr);
+  ehdr->e_shstrndx = 2;
+  memory_->SetMemory(0, ehdr, sizeof(*ehdr));
+
+  Shdr shdr;
+  memset(&shdr, 0, sizeof(shdr));
+  shdr.sh_type = SHT_NULL;
+  memory_->SetMemory(offset, &shdr, sizeof(shdr));
+  offset += ehdr->e_shentsize;
+
+  memset(&shdr, 0, sizeof(shdr));
+  shdr.sh_type = SHT_PROGBITS;
+  shdr.sh_name = 0x100;
+  shdr.sh_addr = 0x5000;
+  shdr.sh_offset = 0x5000;
+  shdr.sh_entsize = 0x100;
+  shdr.sh_size = 0x800;
+  memory_->SetMemory(offset, &shdr, sizeof(shdr));
+  offset += ehdr->e_shentsize;
+
+  memset(&shdr, 0, sizeof(shdr));
+  shdr.sh_type = SHT_STRTAB;
+  shdr.sh_name = 0x200000;
+  shdr.sh_offset = 0xf000;
+  shdr.sh_size = 0x1000;
+  memory_->SetMemory(offset, &shdr, sizeof(shdr));
+  offset += ehdr->e_shentsize;
+
+  memory_->SetMemory(0xf100, ".gnu_debugdata", sizeof(".gnu_debugdata"));
+
+  ASSERT_TRUE(elf.Init());
+  ASSERT_TRUE(elf.interface() != nullptr);
+  ASSERT_TRUE(elf.gnu_debugdata_interface() == nullptr);
+  EXPECT_EQ(0x5000U, elf.interface()->gnu_debugdata_offset());
+  EXPECT_EQ(0x800U, elf.interface()->gnu_debugdata_size());
+
+  elf.InitGnuDebugdata();
+}
+
+TEST_F(ElfTest, gnu_debugdata_init_fail32) {
+  Elf32_Ehdr ehdr;
+  InitEhdr<Elf32_Ehdr>(&ehdr);
+  ehdr.e_ident[EI_CLASS] = ELFCLASS32;
+  ehdr.e_machine = EM_ARM;
+
+  GnuDebugdataInitFail<Elf32_Ehdr, Elf32_Shdr>(&ehdr);
+}
+
+TEST_F(ElfTest, gnu_debugdata_init_fail64) {
+  Elf64_Ehdr ehdr;
+  InitEhdr<Elf64_Ehdr>(&ehdr);
+  ehdr.e_ident[EI_CLASS] = ELFCLASS64;
+  ehdr.e_machine = EM_AARCH64;
+
+  GnuDebugdataInitFail<Elf64_Ehdr, Elf64_Shdr>(&ehdr);
+}
+
+template <typename Ehdr, typename Shdr>
+void ElfTest::GnuDebugdataInit(Ehdr* ehdr) {
+  Elf elf(memory_);
+
+  uint64_t offset = 0x2000;
+
+  ehdr->e_shoff = offset;
+  ehdr->e_shnum = 3;
+  ehdr->e_shentsize = sizeof(Shdr);
+  ehdr->e_shstrndx = 2;
+  memory_->SetMemory(0, ehdr, sizeof(*ehdr));
+
+  Shdr shdr;
+  memset(&shdr, 0, sizeof(shdr));
+  shdr.sh_type = SHT_NULL;
+  memory_->SetMemory(offset, &shdr, sizeof(shdr));
+  offset += ehdr->e_shentsize;
+
+  uint64_t gnu_offset = offset;
+  offset += ehdr->e_shentsize;
+
+  memset(&shdr, 0, sizeof(shdr));
+  shdr.sh_type = SHT_STRTAB;
+  shdr.sh_name = 0x200000;
+  shdr.sh_offset = 0xf000;
+  shdr.sh_size = 0x1000;
+  memory_->SetMemory(offset, &shdr, sizeof(shdr));
+  offset += ehdr->e_shentsize;
+
+  memory_->SetMemory(0xf100, ".gnu_debugdata", sizeof(".gnu_debugdata"));
+
+  // Read in the compressed elf data and put it in our fake memory.
+  std::string name("tests/");
+  if (sizeof(Ehdr) == sizeof(Elf32_Ehdr)) {
+    name += "elf32.xz";
+  } else {
+    name += "elf64.xz";
+  }
+  int fd = TEMP_FAILURE_RETRY(open(name.c_str(), O_RDONLY));
+  ASSERT_NE(-1, fd) << "Cannot open " + name;
+  // Assumes the file is less than 1024 bytes.
+  std::vector<uint8_t> buf(1024);
+  ssize_t bytes = TEMP_FAILURE_RETRY(read(fd, buf.data(), buf.size()));
+  ASSERT_GT(bytes, 0);
+  // Make sure the file isn't too big.
+  ASSERT_NE(static_cast<size_t>(bytes), buf.size())
+      << "File " + name + " is too big, increase buffer size.";
+  close(fd);
+  buf.resize(bytes);
+  memory_->SetMemory(0x5000, buf);
+
+  memset(&shdr, 0, sizeof(shdr));
+  shdr.sh_type = SHT_PROGBITS;
+  shdr.sh_name = 0x100;
+  shdr.sh_addr = 0x5000;
+  shdr.sh_offset = 0x5000;
+  shdr.sh_size = bytes;
+  memory_->SetMemory(gnu_offset, &shdr, sizeof(shdr));
+
+  ASSERT_TRUE(elf.Init());
+  ASSERT_TRUE(elf.interface() != nullptr);
+  ASSERT_TRUE(elf.gnu_debugdata_interface() == nullptr);
+  EXPECT_EQ(0x5000U, elf.interface()->gnu_debugdata_offset());
+
+  elf.InitGnuDebugdata();
+  ASSERT_TRUE(elf.gnu_debugdata_interface() != nullptr);
+}
+
+TEST_F(ElfTest, gnu_debugdata_init32) {
+  Elf32_Ehdr ehdr;
+  InitEhdr<Elf32_Ehdr>(&ehdr);
+  ehdr.e_ident[EI_CLASS] = ELFCLASS32;
+  ehdr.e_machine = EM_ARM;
+
+  GnuDebugdataInit<Elf32_Ehdr, Elf32_Shdr>(&ehdr);
+}
+
+TEST_F(ElfTest, gnu_debugdata_init64) {
+  Elf64_Ehdr ehdr;
+  InitEhdr<Elf64_Ehdr>(&ehdr);
+  ehdr.e_ident[EI_CLASS] = ELFCLASS64;
+  ehdr.e_machine = EM_AARCH64;
+
+  GnuDebugdataInit<Elf64_Ehdr, Elf64_Shdr>(&ehdr);
+}
diff --git a/libunwindstack/tests/GenGnuDebugdata.cpp b/libunwindstack/tests/GenGnuDebugdata.cpp
new file mode 100644
index 0000000..2644582
--- /dev/null
+++ b/libunwindstack/tests/GenGnuDebugdata.cpp
@@ -0,0 +1,112 @@
+/*
+ * Copyright (C) 2016 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 <elf.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <string>
+
+#if !defined(EM_AARCH64)
+#define EM_AARCH64 183
+#endif
+
+template <typename Ehdr>
+void InitEhdr(Ehdr* ehdr, uint32_t elf_class, uint32_t machine) {
+  memset(ehdr, 0, sizeof(Ehdr));
+  memcpy(&ehdr->e_ident[0], ELFMAG, SELFMAG);
+  ehdr->e_ident[EI_DATA] = ELFDATA2LSB;
+  ehdr->e_ident[EI_VERSION] = EV_CURRENT;
+  ehdr->e_ident[EI_OSABI] = ELFOSABI_SYSV;
+  ehdr->e_ident[EI_CLASS] = elf_class;
+  ehdr->e_type = ET_DYN;
+  ehdr->e_machine = machine;
+  ehdr->e_version = EV_CURRENT;
+  ehdr->e_ehsize = sizeof(Ehdr);
+}
+
+template <typename Ehdr, typename Shdr>
+void GenElf(Ehdr* ehdr, int fd) {
+  uint64_t offset = sizeof(Ehdr);
+  ehdr->e_shoff = offset;
+  ehdr->e_shnum = 3;
+  ehdr->e_shentsize = sizeof(Shdr);
+  ehdr->e_shstrndx = 2;
+  TEMP_FAILURE_RETRY(write(fd, ehdr, sizeof(Ehdr)));
+
+  Shdr shdr;
+  memset(&shdr, 0, sizeof(shdr));
+  shdr.sh_name = 0;
+  shdr.sh_type = SHT_NULL;
+  TEMP_FAILURE_RETRY(write(fd, &shdr, sizeof(Shdr)));
+  offset += ehdr->e_shentsize;
+
+  memset(&shdr, 0, sizeof(shdr));
+  shdr.sh_type = SHT_PROGBITS;
+  shdr.sh_name = 11;
+  shdr.sh_addr = 0x5000;
+  shdr.sh_offset = 0x5000;
+  shdr.sh_entsize = 0x100;
+  shdr.sh_size = 0x800;
+  TEMP_FAILURE_RETRY(write(fd, &shdr, sizeof(Shdr)));
+  offset += ehdr->e_shentsize;
+
+  memset(&shdr, 0, sizeof(shdr));
+  shdr.sh_type = SHT_STRTAB;
+  shdr.sh_name = 1;
+  shdr.sh_offset = 0x200;
+  shdr.sh_size = 24;
+  TEMP_FAILURE_RETRY(write(fd, &shdr, sizeof(Shdr)));
+
+  // Write out the name entries information.
+  lseek(fd, 0x200, SEEK_SET);
+  std::string name;
+  TEMP_FAILURE_RETRY(write(fd, name.data(), name.size() + 1));
+  name = ".shstrtab";
+  TEMP_FAILURE_RETRY(write(fd, name.data(), name.size() + 1));
+  name = ".debug_frame";
+  TEMP_FAILURE_RETRY(write(fd, name.data(), name.size() + 1));
+}
+
+int main() {
+  int elf32_fd = TEMP_FAILURE_RETRY(open("elf32", O_RDWR | O_CREAT | O_TRUNC | O_CLOEXEC, 0644));
+  if (elf32_fd == -1) {
+    printf("Failed to create elf32: %s\n", strerror(errno));
+    return 1;
+  }
+
+  int elf64_fd = TEMP_FAILURE_RETRY(open("elf64", O_RDWR | O_CREAT | O_TRUNC | O_CLOEXEC, 0644));
+  if (elf64_fd == -1) {
+    printf("Failed to create elf64: %s\n", strerror(errno));
+    return 1;
+  }
+
+  Elf32_Ehdr ehdr32;
+  InitEhdr<Elf32_Ehdr>(&ehdr32, ELFCLASS32, EM_ARM);
+  GenElf<Elf32_Ehdr, Elf32_Shdr>(&ehdr32, elf32_fd);
+  close(elf32_fd);
+
+  Elf64_Ehdr ehdr64;
+  InitEhdr<Elf64_Ehdr>(&ehdr64, ELFCLASS64, EM_AARCH64);
+  GenElf<Elf64_Ehdr, Elf64_Shdr>(&ehdr64, elf64_fd);
+  close(elf64_fd);
+}
diff --git a/libunwindstack/tests/elf32.xz b/libunwindstack/tests/elf32.xz
new file mode 100644
index 0000000..f25d433
--- /dev/null
+++ b/libunwindstack/tests/elf32.xz
Binary files differ
diff --git a/libunwindstack/tests/elf64.xz b/libunwindstack/tests/elf64.xz
new file mode 100644
index 0000000..eb1618e
--- /dev/null
+++ b/libunwindstack/tests/elf64.xz
Binary files differ
diff --git a/libunwindstack/unwind_info.cpp b/libunwindstack/unwind_info.cpp
index 6f158b0..da1522b 100644
--- a/libunwindstack/unwind_info.cpp
+++ b/libunwindstack/unwind_info.cpp
@@ -26,6 +26,8 @@
 #include <unistd.h>
 
 #include "ArmExidx.h"
+#include "DwarfSection.h"
+#include "DwarfStructs.h"
 #include "Elf.h"
 #include "ElfInterface.h"
 #include "ElfInterfaceArm.h"
@@ -46,12 +48,14 @@
       std::string name;
       printf("  PC 0x%" PRIx64, addr + load_bias);
       uint64_t func_offset;
-      if (interface->GetFunctionName(addr + load_bias + 1, &name, &func_offset) && !name.empty()) {
+      uint64_t pc = addr + load_bias;
+      // This might be a thumb function, so set the low bit.
+      if (interface->GetFunctionName(pc | 1, &name, &func_offset) && !name.empty()) {
         printf(" <%s>", name.c_str());
       }
       printf("\n");
       uint64_t entry;
-      if (!interface->FindEntry(addr + load_bias, &entry)) {
+      if (!interface->FindEntry(pc, &entry)) {
         printf("    Cannot find entry for address.\n");
         continue;
       }
@@ -75,6 +79,27 @@
   printf("\n");
 }
 
+void DumpDwarfSection(ElfInterface* interface, DwarfSection* section, uint64_t load_bias) {
+  for (const DwarfFde* fde : *section) {
+    // Sometimes there are entries that have empty length, skip those since
+    // they don't contain any interesting information.
+    if (fde->pc_start == fde->pc_end) {
+      continue;
+    }
+    printf("\n  PC 0x%" PRIx64, fde->pc_start + load_bias);
+    std::string name;
+    uint64_t func_offset;
+    if (interface->GetFunctionName(fde->pc_start + load_bias, &name, &func_offset) &&
+        !name.empty()) {
+      printf(" <%s>", name.c_str());
+    }
+    printf("\n");
+    if (!section->Log(2, UINT64_MAX, load_bias, fde)) {
+      printf("Failed to process cfa information for entry at 0x%" PRIx64 "\n", fde->pc_start);
+    }
+  }
+}
+
 int main(int argc, char** argv) {
   if (argc != 2) {
     printf("Need to pass the name of an elf file to the program.\n");
@@ -117,5 +142,38 @@
     printf("\n");
   }
 
+  if (interface->eh_frame() != nullptr) {
+    printf("eh_frame information:\n");
+    DumpDwarfSection(interface, interface->eh_frame(), interface->load_bias());
+    printf("\n");
+  } else {
+    printf("\nno eh_frame information\n");
+  }
+
+  if (interface->debug_frame() != nullptr) {
+    printf("\ndebug_frame information:\n");
+    DumpDwarfSection(interface, interface->debug_frame(), interface->load_bias());
+    printf("\n");
+  } else {
+    printf("\nno debug_frame information\n");
+  }
+
+  // If there is a gnu_debugdata interface, dump the information for that.
+  ElfInterface* gnu_debugdata_interface = elf.gnu_debugdata_interface();
+  if (gnu_debugdata_interface != nullptr) {
+    if (gnu_debugdata_interface->eh_frame() != nullptr) {
+      printf("\ngnu_debugdata (eh_frame):\n");
+      DumpDwarfSection(gnu_debugdata_interface, gnu_debugdata_interface->eh_frame(), 0);
+      printf("\n");
+    }
+    if (gnu_debugdata_interface->debug_frame() != nullptr) {
+      printf("\ngnu_debugdata (debug_frame):\n");
+      DumpDwarfSection(gnu_debugdata_interface, gnu_debugdata_interface->debug_frame(), 0);
+      printf("\n");
+    }
+  } else {
+    printf("\nno valid gnu_debugdata information\n");
+  }
+
   return 0;
 }
diff --git a/rootdir/init.rc b/rootdir/init.rc
index 94f64e0..d9fe090 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -221,6 +221,8 @@
     mount pstore pstore /sys/fs/pstore
     chown system log /sys/fs/pstore/console-ramoops
     chmod 0440 /sys/fs/pstore/console-ramoops
+    chown system log /sys/fs/pstore/console-ramoops-0
+    chmod 0440 /sys/fs/pstore/console-ramoops-0
     chown system log /sys/fs/pstore/pmsg-ramoops-0
     chmod 0440 /sys/fs/pstore/pmsg-ramoops-0