diff --git a/OWNERS b/OWNERS
index 682a067..1d319af 100644
--- a/OWNERS
+++ b/OWNERS
@@ -1 +1,5 @@
 enh@google.com
+per-file libsysutils/src/Netlink* = ek@google.com
+per-file libsysutils/src/Netlink* = lorenzo@google.com
+per-file libsysutils/include/sysutils/Netlink* = ek@google.com
+per-file libsysutils/include/sysutils/Netlink* = lorenzo@google.com
diff --git a/adb/Android.bp b/adb/Android.bp
index 0858a6c..bbf7cb4 100644
--- a/adb/Android.bp
+++ b/adb/Android.bp
@@ -12,6 +12,325 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+cc_defaults {
+    name: "adb_defaults",
+
+    cflags: [
+        "-Wall",
+        "-Wextra",
+        "-Werror",
+        "-Wno-unused-parameter",
+        "-Wno-missing-field-initializers",
+        "-Wvla",
+    ],
+    rtti: true,
+
+    clang_cflags: [
+        "-Wexit-time-destructors",
+        "-Wthread-safety",
+    ],
+
+    use_version_lib: true,
+
+    compile_multilib: "first",
+    product_variables: {
+        debuggable: {
+            cflags: [
+                "-DALLOW_ADBD_ROOT",
+                "-DALLOW_ADBD_DISABLE_VERITY",
+                "-DALLOW_ADBD_NO_AUTH",
+            ],
+        },
+    },
+
+    target: {
+        android: {
+            cflags: ["-DADB_HOST=0"],
+        },
+
+        host: {
+            cflags: ["-DADB_HOST=1"],
+        },
+
+        darwin: {
+            host_ldlibs: [
+                "-lpthread",
+                "-framework CoreFoundation",
+                "-framework IOKit",
+                "-lobjc",
+            ],
+        },
+
+        windows: {
+            cflags: [
+                // Define windows.h and tchar.h Unicode preprocessor symbols so that
+                // CreateFile(), _tfopen(), etc. map to versions that take wchar_t*, breaking the
+                // build if you accidentally pass char*. Fix by calling like:
+                //   std::wstring path_wide;
+                //   if (!android::base::UTF8ToWide(path_utf8, &path_wide)) { /* error handling */ }
+                //   CreateFileW(path_wide.c_str());
+                "-DUNICODE=1",
+                "-D_UNICODE=1",
+
+                // -std=gnu++14 doesn't set _GNU_SOURCE on Windows.
+                "-D_GNU_SOURCE",
+            ],
+        },
+    },
+}
+
+// libadb
+// =========================================================
+// These files are compiled for both the host and the device.
+libadb_srcs = [
+    "adb.cpp",
+    "adb_io.cpp",
+    "adb_listeners.cpp",
+    "adb_trace.cpp",
+    "adb_utils.cpp",
+    "fdevent.cpp",
+    "services.cpp",
+    "sockets.cpp",
+    "socket_spec.cpp",
+    "sysdeps/errno.cpp",
+    "transport.cpp",
+    "transport_local.cpp",
+    "transport_usb.cpp",
+]
+
+libadb_posix_srcs = [
+    "sysdeps_unix.cpp",
+    "sysdeps/posix/network.cpp",
+]
+
+libadb_test_srcs = [
+    "adb_io_test.cpp",
+    "adb_listeners_test.cpp",
+    "adb_utils_test.cpp",
+    "fdevent_test.cpp",
+    "socket_spec_test.cpp",
+    "socket_test.cpp",
+    "sysdeps_test.cpp",
+    "sysdeps/stat_test.cpp",
+    "transport_test.cpp",
+]
+
+cc_library_host_static {
+    name: "libadb_host",
+    defaults: ["adb_defaults"],
+
+    srcs: libadb_srcs + [
+        "client/auth.cpp",
+        "client/usb_libusb.cpp",
+        "client/usb_dispatch.cpp",
+        "client/transport_mdns.cpp",
+    ],
+
+    target: {
+        linux: {
+            srcs: ["client/usb_linux.cpp"],
+        },
+        darwin: {
+            srcs: ["client/usb_osx.cpp"],
+        },
+
+        not_windows: {
+            srcs: libadb_posix_srcs,
+        },
+        windows: {
+            enabled: true,
+            srcs: [
+                "client/usb_windows.cpp",
+                "sysdeps_win32.cpp",
+                "sysdeps/win32/errno.cpp",
+                "sysdeps/win32/stat.cpp",
+            ],
+            shared_libs: ["AdbWinApi"],
+        },
+    },
+
+    static_libs: [
+        "libbase",
+        "libcrypto_utils",
+        "libcrypto",
+        "libdiagnose_usb",
+        "libmdnssd",
+        "libusb",
+    ],
+}
+
+cc_test_host {
+    name: "adb_test",
+    defaults: ["adb_defaults"],
+    srcs: libadb_test_srcs,
+    static_libs: [
+        "libadb_host",
+        "libbase",
+        "libcutils",
+        "libcrypto_utils",
+        "libcrypto",
+        "libmdnssd",
+        "libdiagnose_usb",
+        "libusb",
+    ],
+}
+
+cc_binary_host {
+    name: "adb",
+    tags: ["debug"],
+
+    defaults: ["adb_defaults"],
+
+    srcs: [
+        "client/adb_client.cpp",
+        "client/bugreport.cpp",
+        "client/commandline.cpp",
+        "client/file_sync_client.cpp",
+        "client/main.cpp",
+        "client/console.cpp",
+        "client/line_printer.cpp",
+        "shell_service_protocol.cpp",
+    ],
+
+    static_libs: [
+        "libadb_host",
+        "libbase",
+        "libcutils",
+        "libcrypto_utils",
+        "libcrypto",
+        "libdiagnose_usb",
+        "liblog",
+        "libmdnssd",
+        "libusb",
+    ],
+
+    stl: "libc++_static",
+
+    // Don't add anything here, we don't want additional shared dependencies
+    // on the host adb tool, and shared libraries that link against libc++
+    // will violate ODR
+    shared_libs: [],
+
+    target: {
+        darwin: {
+            cflags: [
+                "-Wno-sizeof-pointer-memaccess",
+            ],
+        },
+        windows: {
+            enabled: true,
+            ldflags: ["-municode"],
+            host_ldlibs: [
+                "-lws2_32",
+                "-lgdi32",
+            ],
+
+            shared_libs: ["AdbWinApi"],
+            required: [
+                "AdbWinUsbApi",
+            ],
+        },
+    },
+}
+
+cc_library_static {
+    name: "libadbd",
+    defaults: ["adb_defaults"],
+
+    // libminadbd wants both, for some reason.
+    compile_multilib: "both",
+    srcs: libadb_srcs + libadb_posix_srcs + [
+        "daemon/auth.cpp",
+        "daemon/usb.cpp",
+        "daemon/jdwp_service.cpp",
+    ],
+
+    static_libs: [
+        "libasyncio",
+        "libbootloader_message",
+        "libcrypto_utils",
+        "libcrypto",
+        "libdiagnose_usb",
+        "libqemu_pipe",
+        "libbase",
+    ],
+}
+
+cc_binary {
+    name: "adbd",
+    defaults: ["adb_defaults"],
+
+    // adbd must be static, as it is copied into the recovery image.
+    static_executable: true,
+
+    srcs: [
+        "daemon/main.cpp",
+        "daemon/mdns.cpp",
+        "daemon/file_sync_service.cpp",
+        "daemon/framebuffer_service.cpp",
+        "daemon/remount_service.cpp",
+        "daemon/set_verity_enable_state_service.cpp",
+        "daemon/shell_service.cpp",
+        "shell_service_protocol.cpp",
+    ],
+
+    cflags: [
+        "-D_GNU_SOURCE",
+        "-Wno-deprecated-declarations",
+    ],
+
+    strip: {
+        keep_symbols: true,
+    },
+
+    static_libs: [
+        "libadbd",
+        "libasyncio",
+        "libavb_user",
+        "libbootloader_message",
+        "libcrypto_utils",
+        "libcrypto",
+        "libdiagnose_usb",
+        "libfec",
+        "libfec_rs",
+        "libfs_mgr",
+        "liblog",
+        "libext4_utils",
+        "libmdnssd",
+        "libminijail",
+        "libselinux",
+        "libsquashfs_utils",
+        "libqemu_pipe",
+        "libdebuggerd_handler",
+
+        "libbase",
+        "libcutils",
+    ],
+}
+
+cc_test {
+    name: "adbd_test",
+    defaults: ["adb_defaults"],
+    srcs: libadb_test_srcs + [
+        "daemon/shell_service.cpp",
+        "daemon/shell_service_test.cpp",
+        "shell_service_protocol.cpp",
+        "shell_service_protocol_test.cpp",
+    ],
+
+    static_libs: [
+        "libadbd",
+        "libbase",
+        "libcutils",
+        "libcrypto_utils",
+        "libcrypto",
+        "libdiagnose_usb",
+        "liblog",
+        "libusb",
+        "libmdnssd",
+    ],
+}
+
 python_binary_host {
     name: "adb_integration_test_adb",
     main: "test_adb.py",
diff --git a/adb/Android.mk b/adb/Android.mk
deleted file mode 100644
index e52f0cb..0000000
--- a/adb/Android.mk
+++ /dev/null
@@ -1,387 +0,0 @@
-# Copyright 2005 The Android Open Source Project
-#
-# Android.mk for adb
-#
-
-LOCAL_PATH:= $(call my-dir)
-
-include $(LOCAL_PATH)/../platform_tools_tool_version.mk
-
-adb_host_sanitize :=
-adb_target_sanitize :=
-
-ADB_COMMON_CFLAGS := \
-    -frtti \
-    -Wall -Wextra -Werror \
-    -Wno-unused-parameter \
-    -Wno-missing-field-initializers \
-    -Wvla \
-    -DADB_VERSION="\"$(tool_version)\"" \
-
-ADB_COMMON_posix_CFLAGS := \
-    -Wexit-time-destructors \
-    -Wthread-safety \
-
-ADB_COMMON_linux_CFLAGS := \
-    $(ADB_COMMON_posix_CFLAGS) \
-
-ADB_COMMON_darwin_CFLAGS := \
-    $(ADB_COMMON_posix_CFLAGS) \
-
-# Define windows.h and tchar.h Unicode preprocessor symbols so that
-# CreateFile(), _tfopen(), etc. map to versions that take wchar_t*, breaking the
-# build if you accidentally pass char*. Fix by calling like:
-#   std::wstring path_wide;
-#   if (!android::base::UTF8ToWide(path_utf8, &path_wide)) { /* error handling */ }
-#   CreateFileW(path_wide.c_str());
-ADB_COMMON_windows_CFLAGS := \
-    -DUNICODE=1 -D_UNICODE=1 \
-
-# libadb
-# =========================================================
-
-# Much of adb is duplicated in bootable/recovery/minadb and fastboot. Changes
-# made to adb rarely get ported to the other two, so the trees have diverged a
-# bit. We'd like to stop this because it is a maintenance nightmare, but the
-# divergence makes this difficult to do all at once. For now, we will start
-# small by moving common files into a static library. Hopefully some day we can
-# get enough of adb in here that we no longer need minadb. https://b/17626262
-LIBADB_SRC_FILES := \
-    adb.cpp \
-    adb_io.cpp \
-    adb_listeners.cpp \
-    adb_trace.cpp \
-    adb_utils.cpp \
-    fdevent.cpp \
-    sockets.cpp \
-    socket_spec.cpp \
-    sysdeps/errno.cpp \
-    transport.cpp \
-    transport_local.cpp \
-    transport_usb.cpp \
-
-LIBADB_TEST_SRCS := \
-    adb_io_test.cpp \
-    adb_listeners_test.cpp \
-    adb_utils_test.cpp \
-    fdevent_test.cpp \
-    socket_spec_test.cpp \
-    socket_test.cpp \
-    sysdeps_test.cpp \
-    sysdeps/stat_test.cpp \
-    transport_test.cpp \
-
-LIBADB_CFLAGS := \
-    $(ADB_COMMON_CFLAGS) \
-    -fvisibility=hidden \
-
-LIBADB_linux_CFLAGS := \
-    $(ADB_COMMON_linux_CFLAGS) \
-
-LIBADB_darwin_CFLAGS := \
-    $(ADB_COMMON_darwin_CFLAGS) \
-
-LIBADB_windows_CFLAGS := \
-    $(ADB_COMMON_windows_CFLAGS) \
-
-LIBADB_darwin_SRC_FILES := \
-    sysdeps_unix.cpp \
-    sysdeps/posix/network.cpp \
-    client/usb_dispatch.cpp \
-    client/usb_libusb.cpp \
-    client/usb_osx.cpp \
-
-LIBADB_linux_SRC_FILES := \
-    sysdeps_unix.cpp \
-    sysdeps/posix/network.cpp \
-    client/usb_dispatch.cpp \
-    client/usb_libusb.cpp \
-    client/usb_linux.cpp \
-
-LIBADB_windows_SRC_FILES := \
-    sysdeps_win32.cpp \
-    sysdeps/win32/errno.cpp \
-    sysdeps/win32/stat.cpp \
-    client/usb_dispatch.cpp \
-    client/usb_libusb.cpp \
-    client/usb_windows.cpp \
-
-LIBADB_TEST_windows_SRCS := \
-    sysdeps/win32/errno_test.cpp \
-    sysdeps_win32_test.cpp \
-
-include $(CLEAR_VARS)
-LOCAL_MODULE := libadbd_usb
-LOCAL_CFLAGS := $(LIBADB_CFLAGS) -DADB_HOST=0
-LOCAL_SRC_FILES := daemon/usb.cpp
-
-LOCAL_SANITIZE := $(adb_target_sanitize)
-
-# Even though we're building a static library (and thus there's no link step for
-# this to take effect), this adds the includes to our path.
-LOCAL_STATIC_LIBRARIES := libcrypto_utils libcrypto libbase libasyncio
-
-include $(BUILD_STATIC_LIBRARY)
-
-include $(CLEAR_VARS)
-LOCAL_MODULE := libadbd
-LOCAL_CFLAGS := $(LIBADB_CFLAGS) -DADB_HOST=0
-LOCAL_SRC_FILES := \
-    $(LIBADB_SRC_FILES) \
-    adbd_auth.cpp \
-    jdwp_service.cpp \
-    sysdeps/posix/network.cpp \
-
-LOCAL_SANITIZE := $(adb_target_sanitize)
-
-# Even though we're building a static library (and thus there's no link step for
-# this to take effect), this adds the includes to our path.
-LOCAL_STATIC_LIBRARIES := libcrypto_utils libcrypto libqemu_pipe libbase
-
-LOCAL_WHOLE_STATIC_LIBRARIES := libadbd_usb
-
-include $(BUILD_STATIC_LIBRARY)
-
-include $(CLEAR_VARS)
-LOCAL_MODULE := libadb
-LOCAL_MODULE_HOST_OS := darwin linux windows
-LOCAL_CFLAGS := $(LIBADB_CFLAGS) -DADB_HOST=1
-LOCAL_CFLAGS_windows := $(LIBADB_windows_CFLAGS)
-LOCAL_CFLAGS_linux := $(LIBADB_linux_CFLAGS)
-LOCAL_CFLAGS_darwin := $(LIBADB_darwin_CFLAGS)
-LOCAL_SRC_FILES := \
-    $(LIBADB_SRC_FILES) \
-    adb_auth_host.cpp \
-    transport_mdns.cpp \
-
-LOCAL_SRC_FILES_darwin := $(LIBADB_darwin_SRC_FILES)
-LOCAL_SRC_FILES_linux := $(LIBADB_linux_SRC_FILES)
-LOCAL_SRC_FILES_windows := $(LIBADB_windows_SRC_FILES)
-
-LOCAL_SANITIZE := $(adb_host_sanitize)
-
-# Even though we're building a static library (and thus there's no link step for
-# this to take effect), this adds the includes to our path.
-LOCAL_STATIC_LIBRARIES := libcrypto_utils libcrypto libbase libmdnssd libusb
-
-LOCAL_C_INCLUDES_windows := development/host/windows/usb/api/
-LOCAL_MULTILIB := first
-
-include $(BUILD_HOST_STATIC_LIBRARY)
-
-include $(CLEAR_VARS)
-LOCAL_MODULE := adbd_test
-LOCAL_CFLAGS := -DADB_HOST=0 $(LIBADB_CFLAGS)
-LOCAL_SRC_FILES := \
-    $(LIBADB_TEST_SRCS) \
-    $(LIBADB_TEST_linux_SRCS) \
-    shell_service.cpp \
-    shell_service_protocol.cpp \
-    shell_service_protocol_test.cpp \
-    shell_service_test.cpp \
-
-LOCAL_SANITIZE := $(adb_target_sanitize)
-LOCAL_STATIC_LIBRARIES := libadbd libcrypto_utils libcrypto libusb libmdnssd
-LOCAL_SHARED_LIBRARIES := liblog libbase libcutils
-include $(BUILD_NATIVE_TEST)
-
-# libdiagnose_usb
-# =========================================================
-
-include $(CLEAR_VARS)
-LOCAL_MODULE := libdiagnose_usb
-LOCAL_MODULE_HOST_OS := darwin linux windows
-LOCAL_CFLAGS := $(LIBADB_CFLAGS)
-LOCAL_SRC_FILES := diagnose_usb.cpp
-# Even though we're building a static library (and thus there's no link step for
-# this to take effect), this adds the includes to our path.
-LOCAL_STATIC_LIBRARIES := libbase
-include $(BUILD_HOST_STATIC_LIBRARY)
-
-# adb_test
-# =========================================================
-
-include $(CLEAR_VARS)
-LOCAL_MODULE := adb_test
-LOCAL_MODULE_HOST_OS := darwin linux windows
-LOCAL_CFLAGS := -DADB_HOST=1 $(LIBADB_CFLAGS)
-LOCAL_CFLAGS_windows := $(LIBADB_windows_CFLAGS)
-LOCAL_CFLAGS_linux := $(LIBADB_linux_CFLAGS)
-LOCAL_CFLAGS_darwin := $(LIBADB_darwin_CFLAGS)
-LOCAL_SRC_FILES := \
-    $(LIBADB_TEST_SRCS) \
-    adb_client.cpp \
-    bugreport.cpp \
-    bugreport_test.cpp \
-    line_printer.cpp \
-    services.cpp \
-    shell_service_protocol.cpp \
-    shell_service_protocol_test.cpp \
-
-LOCAL_SRC_FILES_linux := $(LIBADB_TEST_linux_SRCS)
-LOCAL_SRC_FILES_darwin := $(LIBADB_TEST_darwin_SRCS)
-LOCAL_SRC_FILES_windows := $(LIBADB_TEST_windows_SRCS)
-LOCAL_SANITIZE := $(adb_host_sanitize)
-LOCAL_STATIC_LIBRARIES := \
-    libadb \
-    libbase \
-    libcrypto_utils \
-    libcrypto \
-    libcutils \
-    libdiagnose_usb \
-    libmdnssd \
-    libgmock_host \
-    libusb \
-
-# Set entrypoint to wmain from sysdeps_win32.cpp instead of main
-LOCAL_LDFLAGS_windows := -municode
-LOCAL_LDLIBS_linux := -lrt -ldl -lpthread
-LOCAL_LDLIBS_darwin := -framework CoreFoundation -framework IOKit -lobjc
-LOCAL_LDLIBS_windows := -lws2_32 -luserenv
-LOCAL_SHARED_LIBRARIES_windows := AdbWinApi
-
-LOCAL_MULTILIB := first
-
-include $(BUILD_HOST_NATIVE_TEST)
-
-# adb host tool
-# =========================================================
-include $(CLEAR_VARS)
-
-LOCAL_LDLIBS_linux := -lrt -ldl -lpthread
-
-LOCAL_LDLIBS_darwin := -lpthread -framework CoreFoundation -framework IOKit -framework Carbon -lobjc
-
-# Use wmain instead of main
-LOCAL_LDFLAGS_windows := -municode
-LOCAL_LDLIBS_windows := -lws2_32 -lgdi32
-LOCAL_SHARED_LIBRARIES_windows := AdbWinApi
-LOCAL_REQUIRED_MODULES_windows := AdbWinUsbApi
-
-LOCAL_SRC_FILES := \
-    adb_client.cpp \
-    bugreport.cpp \
-    client/main.cpp \
-    console.cpp \
-    commandline.cpp \
-    file_sync_client.cpp \
-    line_printer.cpp \
-    services.cpp \
-    shell_service_protocol.cpp \
-
-LOCAL_CFLAGS += \
-    $(ADB_COMMON_CFLAGS) \
-    -D_GNU_SOURCE \
-    -DADB_HOST=1 \
-
-LOCAL_CFLAGS_windows := \
-    $(ADB_COMMON_windows_CFLAGS)
-
-LOCAL_CFLAGS_linux := \
-    $(ADB_COMMON_linux_CFLAGS) \
-
-LOCAL_CFLAGS_darwin := \
-    $(ADB_COMMON_darwin_CFLAGS) \
-    -Wno-sizeof-pointer-memaccess -Wno-unused-parameter \
-
-LOCAL_MODULE := adb
-LOCAL_MODULE_TAGS := debug
-LOCAL_MODULE_HOST_OS := darwin linux windows
-
-LOCAL_SANITIZE := $(adb_host_sanitize)
-LOCAL_STATIC_LIBRARIES := \
-    libadb \
-    libbase \
-    libcrypto_utils \
-    libcrypto \
-    libdiagnose_usb \
-    liblog \
-    libmdnssd \
-    libusb \
-
-# Don't use libcutils on Windows.
-LOCAL_STATIC_LIBRARIES_darwin := libcutils
-LOCAL_STATIC_LIBRARIES_linux := libcutils
-
-LOCAL_CXX_STL := libc++_static
-
-# Don't add anything here, we don't want additional shared dependencies
-# on the host adb tool, and shared libraries that link against libc++
-# will violate ODR
-LOCAL_SHARED_LIBRARIES :=
-
-include $(BUILD_HOST_EXECUTABLE)
-
-$(call dist-for-goals,dist_files sdk win_sdk,$(LOCAL_BUILT_MODULE))
-ifdef HOST_CROSS_OS
-# Archive adb.exe for win_sdk build.
-$(call dist-for-goals,win_sdk,$(ALL_MODULES.host_cross_adb.BUILT))
-endif
-
-
-# adbd device daemon
-# =========================================================
-
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES := \
-    daemon/main.cpp \
-    daemon/mdns.cpp \
-    services.cpp \
-    file_sync_service.cpp \
-    framebuffer_service.cpp \
-    remount_service.cpp \
-    set_verity_enable_state_service.cpp \
-    shell_service.cpp \
-    shell_service_protocol.cpp \
-
-LOCAL_CFLAGS := \
-    $(ADB_COMMON_CFLAGS) \
-    $(ADB_COMMON_linux_CFLAGS) \
-    -DADB_HOST=0 \
-    -D_GNU_SOURCE \
-    -Wno-deprecated-declarations \
-
-LOCAL_CFLAGS += -DALLOW_ADBD_NO_AUTH=$(if $(filter userdebug eng,$(TARGET_BUILD_VARIANT)),1,0)
-
-ifneq (,$(filter userdebug eng,$(TARGET_BUILD_VARIANT)))
-LOCAL_CFLAGS += -DALLOW_ADBD_DISABLE_VERITY=1
-LOCAL_CFLAGS += -DALLOW_ADBD_ROOT=1
-endif
-
-LOCAL_MODULE := adbd
-
-LOCAL_FORCE_STATIC_EXECUTABLE := true
-
-LOCAL_SANITIZE := $(adb_target_sanitize)
-LOCAL_STRIP_MODULE := keep_symbols
-LOCAL_STATIC_LIBRARIES := \
-    libadbd \
-    libasyncio \
-    libavb_user \
-    libbase \
-    libqemu_pipe \
-    libbootloader_message \
-    libfs_mgr \
-    libfec \
-    libfec_rs \
-    libselinux \
-    liblog \
-    libext4_utils \
-    libsquashfs_utils \
-    libcutils \
-    libbase \
-    libcrypto_utils \
-    libcrypto \
-    libminijail \
-    libmdnssd \
-    libdebuggerd_handler \
-
-include $(BUILD_EXECUTABLE)
-
-# adb integration test
-# =========================================================
-$(call dist-for-goals,sdk,$(ALL_MODULES.adb_integration_test_adb.BUILT))
-$(call dist-for-goals,sdk,$(ALL_MODULES.adb_integration_test_device.BUILT))
-
-include $(call first-makefiles-under,$(LOCAL_PATH))
diff --git a/adb/CPPLINT.cfg b/adb/CPPLINT.cfg
deleted file mode 100644
index f496490..0000000
--- a/adb/CPPLINT.cfg
+++ /dev/null
@@ -1,2 +0,0 @@
-set noparent
-filter=-build/header_guard,-build/include,-readability/function,-whitespace/indent
diff --git a/adb/adb.cpp b/adb/adb.cpp
index c4df5c4..65fa2e7 100644
--- a/adb/adb.cpp
+++ b/adb/adb.cpp
@@ -44,6 +44,7 @@
 #include <android-base/parsenetaddress.h>
 #include <android-base/stringprintf.h>
 #include <android-base/strings.h>
+#include <build/version.h>
 
 #include "adb_auth.h"
 #include "adb_io.h"
@@ -66,8 +67,8 @@
         "Android Debug Bridge version %d.%d.%d\n"
         "Version %s\n"
         "Installed as %s\n",
-        ADB_VERSION_MAJOR, ADB_VERSION_MINOR, ADB_SERVER_VERSION, ADB_VERSION,
-        android::base::GetExecutablePath().c_str());
+        ADB_VERSION_MAJOR, ADB_VERSION_MINOR, ADB_SERVER_VERSION,
+        android::build::GetBuildNumber().c_str(), android::base::GetExecutablePath().c_str());
 }
 
 void fatal(const char *fmt, ...) {
@@ -135,8 +136,16 @@
 
 void handle_offline(atransport *t)
 {
-    D("adb: offline");
-    //Close the associated usb
+    if (t->GetConnectionState() == kCsOffline) {
+        LOG(INFO) << t->serial_name() << ": already offline";
+        return;
+    }
+
+    LOG(INFO) << t->serial_name() << ": offline";
+
+    t->SetConnectionState(kCsOffline);
+
+    // Close the associated usb
     t->online = 0;
 
     // This is necessary to avoid a race condition that occurred when a transport closes
@@ -317,10 +326,7 @@
 }
 
 static void handle_new_connection(atransport* t, apacket* p) {
-    if (t->GetConnectionState() != kCsOffline) {
-        t->SetConnectionState(kCsOffline);
-        handle_offline(t);
-    }
+    handle_offline(t);
 
     t->update_version(p->msg.arg0, p->msg.arg1);
     parse_banner(p->payload, t);
@@ -349,19 +355,6 @@
     CHECK_EQ(p->payload.size(), p->msg.data_length);
 
     switch(p->msg.command){
-    case A_SYNC:
-        if (p->msg.arg0){
-            send_packet(p, t);
-#if ADB_HOST
-            send_connect(t);
-#endif
-        } else {
-            t->SetConnectionState(kCsOffline);
-            handle_offline(t);
-            send_packet(p, t);
-        }
-        return;
-
     case A_CNXN:  // CONNECT(version, maxdata, "system-id-string")
         handle_new_connection(t, p);
         break;
diff --git a/adb/adb_listeners.cpp b/adb/adb_listeners.cpp
index a142384..fecf452 100644
--- a/adb/adb_listeners.cpp
+++ b/adb/adb_listeners.cpp
@@ -29,6 +29,7 @@
 
 #include "socket_spec.h"
 #include "sysdeps.h"
+#include "sysdeps/memory.h"
 #include "transport.h"
 
 // A listener is an entity which binds to a local port and, upon receiving a connection on that
@@ -203,7 +204,7 @@
         }
     }
 
-    std::unique_ptr<alistener> listener(new alistener(local_name, connect_to));
+    auto listener = std::make_unique<alistener>(local_name, connect_to);
 
     int resolved = 0;
     listener->fd = socket_spec_listen(listener->local_name, error, &resolved);
diff --git a/adb/adb_client.cpp b/adb/client/adb_client.cpp
similarity index 100%
rename from adb/adb_client.cpp
rename to adb/client/adb_client.cpp
diff --git a/adb/adb_client.h b/adb/client/adb_client.h
similarity index 100%
rename from adb/adb_client.h
rename to adb/client/adb_client.h
diff --git a/adb/adb_auth_host.cpp b/adb/client/auth.cpp
similarity index 100%
rename from adb/adb_auth_host.cpp
rename to adb/client/auth.cpp
diff --git a/adb/bugreport.cpp b/adb/client/bugreport.cpp
similarity index 100%
rename from adb/bugreport.cpp
rename to adb/client/bugreport.cpp
diff --git a/adb/bugreport.h b/adb/client/bugreport.h
similarity index 100%
rename from adb/bugreport.h
rename to adb/client/bugreport.h
diff --git a/adb/commandline.cpp b/adb/client/commandline.cpp
similarity index 99%
rename from adb/commandline.cpp
rename to adb/client/commandline.cpp
index 6a80bcd..546321e 100644
--- a/adb/commandline.cpp
+++ b/adb/client/commandline.cpp
@@ -61,6 +61,7 @@
 #include "services.h"
 #include "shell_service.h"
 #include "sysdeps/chrono.h"
+#include "sysdeps/memory.h"
 
 static int install_app(int argc, const char** argv);
 static int install_multiple_app(int argc, const char** argv);
@@ -263,7 +264,7 @@
     char raw_buffer[BUFSIZ];
     char* buffer_ptr = raw_buffer;
     if (use_shell_protocol) {
-        protocol.reset(new ShellProtocol(fd));
+        protocol = std::make_unique<ShellProtocol>(fd);
         if (!protocol) {
             LOG(ERROR) << "failed to allocate memory for ShellProtocol object";
             return 1;
@@ -630,7 +631,7 @@
     args->raw_stdin = raw_stdin;
     args->escape_char = escape_char;
     if (use_shell_protocol) {
-        args->protocol.reset(new ShellProtocol(args->write_fd));
+        args->protocol = std::make_unique<ShellProtocol>(args->write_fd);
     }
 
     if (raw_stdin) stdin_raw_init();
diff --git a/adb/commandline.h b/adb/client/commandline.h
similarity index 100%
rename from adb/commandline.h
rename to adb/client/commandline.h
diff --git a/adb/console.cpp b/adb/client/console.cpp
similarity index 100%
rename from adb/console.cpp
rename to adb/client/console.cpp
diff --git a/adb/file_sync_client.cpp b/adb/client/file_sync_client.cpp
similarity index 100%
rename from adb/file_sync_client.cpp
rename to adb/client/file_sync_client.cpp
diff --git a/adb/line_printer.cpp b/adb/client/line_printer.cpp
similarity index 100%
rename from adb/line_printer.cpp
rename to adb/client/line_printer.cpp
diff --git a/adb/line_printer.h b/adb/client/line_printer.h
similarity index 100%
rename from adb/line_printer.h
rename to adb/client/line_printer.h
diff --git a/adb/transport_mdns.cpp b/adb/client/transport_mdns.cpp
similarity index 100%
rename from adb/transport_mdns.cpp
rename to adb/client/transport_mdns.cpp
diff --git a/adb/adbd_auth.cpp b/adb/daemon/auth.cpp
similarity index 100%
rename from adb/adbd_auth.cpp
rename to adb/daemon/auth.cpp
diff --git a/adb/file_sync_service.cpp b/adb/daemon/file_sync_service.cpp
similarity index 100%
rename from adb/file_sync_service.cpp
rename to adb/daemon/file_sync_service.cpp
diff --git a/adb/framebuffer_service.cpp b/adb/daemon/framebuffer_service.cpp
similarity index 100%
rename from adb/framebuffer_service.cpp
rename to adb/daemon/framebuffer_service.cpp
diff --git a/adb/jdwp_service.cpp b/adb/daemon/jdwp_service.cpp
similarity index 98%
rename from adb/jdwp_service.cpp
rename to adb/daemon/jdwp_service.cpp
index 6f5396a..9761558 100644
--- a/adb/jdwp_service.cpp
+++ b/adb/daemon/jdwp_service.cpp
@@ -128,7 +128,7 @@
 static void jdwp_process_list_updated(void);
 
 struct JdwpProcess;
-static std::list<std::unique_ptr<JdwpProcess>> _jdwp_list;
+static auto& _jdwp_list = *new std::list<std::unique_ptr<JdwpProcess>>();
 
 struct JdwpProcess {
     explicit JdwpProcess(int socket) {
@@ -511,7 +511,7 @@
     bool need_initial;
 };
 
-static std::vector<std::unique_ptr<JdwpTracker>> _jdwp_trackers;
+static auto& _jdwp_trackers = *new std::vector<std::unique_ptr<JdwpTracker>>();
 
 static void jdwp_process_list_updated(void) {
     std::string data;
diff --git a/adb/daemon/main.cpp b/adb/daemon/main.cpp
index 3c27582..4314dae 100644
--- a/adb/daemon/main.cpp
+++ b/adb/daemon/main.cpp
@@ -158,9 +158,10 @@
     // descriptor will always be open.
     adbd_cloexec_auth_socket();
 
-    if (ALLOW_ADBD_NO_AUTH && !android::base::GetBoolProperty("ro.adb.secure", false)) {
-        auth_required = false;
-    }
+#if defined(ALLOW_ADBD_NO_AUTH)
+    // If ro.adb.secure is unset, default to no authentication required.
+    auth_required = android::base::GetBoolProperty("ro.adb.secure", false);
+#endif
 
     adbd_auth_init();
 
diff --git a/adb/remount_service.cpp b/adb/daemon/remount_service.cpp
similarity index 100%
rename from adb/remount_service.cpp
rename to adb/daemon/remount_service.cpp
diff --git a/adb/set_verity_enable_state_service.cpp b/adb/daemon/set_verity_enable_state_service.cpp
similarity index 100%
rename from adb/set_verity_enable_state_service.cpp
rename to adb/daemon/set_verity_enable_state_service.cpp
diff --git a/adb/shell_service.cpp b/adb/daemon/shell_service.cpp
similarity index 99%
rename from adb/shell_service.cpp
rename to adb/daemon/shell_service.cpp
index f9f80c0..c04ceaf 100644
--- a/adb/shell_service.cpp
+++ b/adb/daemon/shell_service.cpp
@@ -372,8 +372,8 @@
         }
         D("protocol FD = %d", protocol_sfd_.get());
 
-        input_.reset(new ShellProtocol(protocol_sfd_));
-        output_.reset(new ShellProtocol(protocol_sfd_));
+        input_ = std::make_unique<ShellProtocol>(protocol_sfd_);
+        output_ = std::make_unique<ShellProtocol>(protocol_sfd_);
         if (!input_ || !output_) {
             *error = "failed to allocate shell protocol objects";
             kill(pid_, SIGKILL);
diff --git a/adb/shell_service_test.cpp b/adb/daemon/shell_service_test.cpp
similarity index 100%
rename from adb/shell_service_test.cpp
rename to adb/daemon/shell_service_test.cpp
diff --git a/adb/daemon/usb.cpp b/adb/daemon/usb.cpp
index c2e9337..c58c67a 100644
--- a/adb/daemon/usb.cpp
+++ b/adb/daemon/usb.cpp
@@ -312,6 +312,8 @@
         goto err;
     }
 
+    memset(&h->read_aiob.ctx, 0, sizeof(h->read_aiob.ctx));
+    memset(&h->write_aiob.ctx, 0, sizeof(h->write_aiob.ctx));
     if (io_setup(USB_FFS_NUM_BUFS, &h->read_aiob.ctx) ||
         io_setup(USB_FFS_NUM_BUFS, &h->write_aiob.ctx)) {
         D("[ aio: got error on io_setup (%d) ]", errno);
diff --git a/adb/fdevent.cpp b/adb/fdevent.cpp
index d285561..ba82e7c 100644
--- a/adb/fdevent.cpp
+++ b/adb/fdevent.cpp
@@ -21,6 +21,7 @@
 #include "fdevent.h"
 
 #include <fcntl.h>
+#include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
@@ -36,6 +37,7 @@
 #include <android-base/logging.h>
 #include <android-base/stringprintf.h>
 #include <android-base/thread_annotations.h>
+#include <android-base/threads.h>
 
 #include "adb_io.h"
 #include "adb_trace.h"
@@ -78,7 +80,7 @@
 static auto& g_pending_list = *new std::list<fdevent*>();
 static std::atomic<bool> terminate_loop(false);
 static bool main_thread_valid;
-static unsigned long main_thread_id;
+static uint64_t main_thread_id;
 
 static auto& run_queue_notify_fd = *new unique_fd();
 static auto& run_queue_mutex = *new std::mutex();
@@ -86,13 +88,13 @@
 
 void check_main_thread() {
     if (main_thread_valid) {
-        CHECK_EQ(main_thread_id, adb_thread_id());
+        CHECK_EQ(main_thread_id, android::base::GetThreadId());
     }
 }
 
 void set_main_thread() {
     main_thread_valid = true;
-    main_thread_id = adb_thread_id();
+    main_thread_id = android::base::GetThreadId();
 }
 
 static std::string dump_fde(const fdevent* fde) {
diff --git a/adb/fdevent_test.cpp b/adb/fdevent_test.cpp
index 63cc4d1..dadae5a 100644
--- a/adb/fdevent_test.cpp
+++ b/adb/fdevent_test.cpp
@@ -99,7 +99,7 @@
 
     std::vector<std::unique_ptr<FdHandler>> fd_handlers;
     for (size_t i = 0; i < read_fds.size(); ++i) {
-        fd_handlers.push_back(std::unique_ptr<FdHandler>(new FdHandler(read_fds[i], write_fds[i])));
+        fd_handlers.push_back(std::make_unique<FdHandler>(read_fds[i], write_fds[i]));
     }
 
     fdevent_loop();
diff --git a/adb/protocol.txt b/adb/protocol.txt
index 55ea87f..f4523c4 100644
--- a/adb/protocol.txt
+++ b/adb/protocol.txt
@@ -183,9 +183,11 @@
 
 Command constant: A_SYNC
 
-The SYNC message is used by the io pump to make sure that stale
+*** obsolete, no longer used ***
+
+The SYNC message was used by the io pump to make sure that stale
 outbound messages are discarded when the connection to the remote side
-is broken.  It is only used internally to the bridge and never valid
+is broken.  It was only used internally to the bridge and never valid
 to send across the wire.
 
 * when the connection to the remote side goes offline, the io pump
diff --git a/adb/socket_test.cpp b/adb/socket_test.cpp
index 04ad6f3..44d3276 100644
--- a/adb/socket_test.cpp
+++ b/adb/socket_test.cpp
@@ -113,16 +113,12 @@
     asocket* s = create_local_socket(arg->socket_fd);
     ASSERT_TRUE(s != nullptr);
     arg->bytes_written = 0;
-    while (true) {
-        std::string data;
-        data.resize(MAX_PAYLOAD);
-        arg->bytes_written += data.size();
-        int ret = s->enqueue(s, std::move(data));
-        if (ret == 1) {
-            // The writer has one packet waiting to send.
-            break;
-        }
-    }
+
+    std::string data;
+    data.resize(MAX_PAYLOAD);
+    arg->bytes_written += data.size();
+    int ret = s->enqueue(s, std::move(data));
+    ASSERT_EQ(1, ret);
 
     asocket* cause_close_s = create_local_socket(arg->cause_close_fd);
     ASSERT_TRUE(cause_close_s != nullptr);
@@ -213,6 +209,47 @@
     TerminateThread(thread);
 }
 
+#if 0
+// Ensure that if we fail to write output to an fd, we will still flush data coming from it.
+TEST_F(LocalSocketTest, flush_after_shutdown) {
+    int head_fd[2];
+    int tail_fd[2];
+    ASSERT_EQ(0, adb_socketpair(head_fd));
+    ASSERT_EQ(0, adb_socketpair(tail_fd));
+
+    asocket* head = create_local_socket(head_fd[1]);
+    asocket* tail = create_local_socket(tail_fd[1]);
+
+    head->peer = tail;
+    head->ready(head);
+
+    tail->peer = head;
+    tail->ready(tail);
+
+    PrepareThread();
+    std::thread thread(fdevent_loop);
+
+    EXPECT_TRUE(WriteFdExactly(head_fd[0], "foo", 3));
+
+    EXPECT_EQ(0, adb_shutdown(head_fd[0], SHUT_RD));
+    const char* str = "write succeeds, but local_socket will fail to write";
+    EXPECT_TRUE(WriteFdExactly(tail_fd[0], str, strlen(str)));
+    EXPECT_TRUE(WriteFdExactly(head_fd[0], "bar", 3));
+
+    char buf[6];
+    EXPECT_TRUE(ReadFdExactly(tail_fd[0], buf, 6));
+    EXPECT_EQ(0, memcmp(buf, "foobar", 6));
+
+    adb_close(head_fd[0]);
+    adb_close(tail_fd[0]);
+
+    // Wait until the local sockets are closed.
+    std::this_thread::sleep_for(SLEEP_FOR_FDEVENT);
+    ASSERT_EQ(GetAdditionalLocalSocketCount(), fdevent_installed_count());
+    TerminateThread(thread);
+}
+#endif
+
 #if defined(__linux__)
 
 static void ClientThreadFunc() {
diff --git a/adb/sysdeps.h b/adb/sysdeps.h
index 307be6d..fd08ad8 100644
--- a/adb/sysdeps.h
+++ b/adb/sysdeps.h
@@ -92,11 +92,6 @@
     return 0;
 }
 
-static __inline__  unsigned long adb_thread_id()
-{
-    return GetCurrentThreadId();
-}
-
 static __inline__ void  close_on_exec(int  fd)
 {
     /* nothing really */
@@ -625,11 +620,6 @@
     return path[0] == '/';
 }
 
-static __inline__ unsigned long adb_thread_id()
-{
-    return (unsigned long)gettid();
-}
-
 #endif /* !_WIN32 */
 
 static inline void disable_tcp_nagle(int fd) {
diff --git a/adb/sysdeps/memory.h b/adb/sysdeps/memory.h
new file mode 100644
index 0000000..0e4c509
--- /dev/null
+++ b/adb/sysdeps/memory.h
@@ -0,0 +1,36 @@
+#pragma once
+
+/*
+ * Copyright (C) 2018 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 <memory>
+#include <type_traits>
+
+#if defined(_WIN32)
+// We don't have C++14 on Windows yet.
+// Reimplement std::make_unique ourselves until we do.
+
+namespace std {
+
+template <typename T, typename... Args>
+typename std::enable_if<!std::is_array<T>::value, std::unique_ptr<T>>::type make_unique(
+    Args&&... args) {
+    return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
+}
+
+}  // namespace std
+
+#endif
diff --git a/adb/test_adb.py b/adb/test_adb.py
index 98c8a59..e771106 100644
--- a/adb/test_adb.py
+++ b/adb/test_adb.py
@@ -217,8 +217,12 @@
         ipv4.listen(1)
 
         ipv6 = socket.socket(socket.AF_INET6, socket.SOCK_STREAM)
-        ipv6.bind(('::1', ipv4.getsockname()[1] + 1))
-        ipv6.listen(1)
+        try:
+            ipv6.bind(('::1', ipv4.getsockname()[1] + 1))
+            ipv6.listen(1)
+        except socket.error:
+            print("IPv6 not available, skipping")
+            return
 
         for s in (ipv4, ipv6):
             port = s.getsockname()[1]
diff --git a/adb/test_device.py b/adb/test_device.py
index 4cf2206..d422df2 100644
--- a/adb/test_device.py
+++ b/adb/test_device.py
@@ -31,6 +31,7 @@
 import subprocess
 import sys
 import tempfile
+import threading
 import time
 import unittest
 
@@ -493,6 +494,29 @@
         stdout, _ = self.device.shell(["cat", log_path])
         self.assertEqual(stdout.strip(), "SIGHUP")
 
+    def test_exit_stress(self):
+        """Hammer `adb shell exit 42` with multiple threads."""
+        thread_count = 48
+        result = dict()
+        def hammer(thread_idx, thread_count, result):
+            success = True
+            for i in range(thread_idx, 240, thread_count):
+                ret = subprocess.call(['adb', 'shell', 'exit {}'.format(i)])
+                if ret != i % 256:
+                    success = False
+                    break
+            result[thread_idx] = success
+
+        threads = []
+        for i in range(thread_count):
+            thread = threading.Thread(target=hammer, args=(i, thread_count, result))
+            thread.start()
+            threads.append(thread)
+        for thread in threads:
+            thread.join()
+        for i, success in result.iteritems():
+            self.assertTrue(success)
+
 
 class ArgumentEscapingTest(DeviceTest):
     def test_shell_escaping(self):
diff --git a/adb/transport.cpp b/adb/transport.cpp
index 6b1a00b..37b56e2 100644
--- a/adb/transport.cpp
+++ b/adb/transport.cpp
@@ -17,6 +17,8 @@
 #define TRACE_TAG TRANSPORT
 
 #include "sysdeps.h"
+#include "sysdeps/memory.h"
+
 #include "transport.h"
 
 #include <ctype.h>
@@ -28,6 +30,7 @@
 #include <unistd.h>
 
 #include <algorithm>
+#include <deque>
 #include <list>
 #include <mutex>
 #include <thread>
@@ -38,12 +41,13 @@
 #include <android-base/strings.h>
 #include <android-base/thread_annotations.h>
 
+#include <diagnose_usb.h>
+
 #include "adb.h"
 #include "adb_auth.h"
 #include "adb_io.h"
 #include "adb_trace.h"
 #include "adb_utils.h"
-#include "diagnose_usb.h"
 #include "fdevent.h"
 
 static void transport_unref(atransport *t);
@@ -65,6 +69,82 @@
     return next++;
 }
 
+BlockingConnectionAdapter::BlockingConnectionAdapter(std::unique_ptr<BlockingConnection> connection)
+    : underlying_(std::move(connection)) {}
+
+BlockingConnectionAdapter::~BlockingConnectionAdapter() {
+    LOG(INFO) << "BlockingConnectionAdapter(" << this->transport_name_ << "): destructing";
+    Stop();
+}
+
+void BlockingConnectionAdapter::Start() {
+    read_thread_ = std::thread([this]() {
+        LOG(INFO) << this->transport_name_ << ": read thread spawning";
+        while (true) {
+            auto packet = std::make_unique<apacket>();
+            if (!underlying_->Read(packet.get())) {
+                PLOG(INFO) << this->transport_name_ << ": read failed";
+                break;
+            }
+            read_callback_(this, std::move(packet));
+        }
+        std::call_once(this->error_flag_, [this]() { this->error_callback_(this, "read failed"); });
+    });
+
+    write_thread_ = std::thread([this]() {
+        LOG(INFO) << this->transport_name_ << ": write thread spawning";
+        while (true) {
+            std::unique_lock<std::mutex> lock(mutex_);
+            cv_.wait(lock, [this]() { return this->stopped_ || !this->write_queue_.empty(); });
+
+            if (this->stopped_) {
+                return;
+            }
+
+            std::unique_ptr<apacket> packet = std::move(this->write_queue_.front());
+            this->write_queue_.pop_front();
+            lock.unlock();
+
+            if (!this->underlying_->Write(packet.get())) {
+                break;
+            }
+        }
+        std::call_once(this->error_flag_, [this]() { this->error_callback_(this, "write failed"); });
+    });
+}
+
+void BlockingConnectionAdapter::Stop() {
+    std::unique_lock<std::mutex> lock(mutex_);
+    if (stopped_) {
+        LOG(INFO) << "BlockingConnectionAdapter(" << this->transport_name_ << "): already stopped";
+        return;
+    }
+
+    stopped_ = true;
+    lock.unlock();
+
+    LOG(INFO) << "BlockingConnectionAdapter(" << this->transport_name_ << "): stopping";
+
+    this->underlying_->Close();
+
+    this->cv_.notify_one();
+    read_thread_.join();
+    write_thread_.join();
+
+    LOG(INFO) << "BlockingConnectionAdapter(" << this->transport_name_ << "): stopped";
+    std::call_once(this->error_flag_, [this]() { this->error_callback_(this, "requested stop"); });
+}
+
+bool BlockingConnectionAdapter::Write(std::unique_ptr<apacket> packet) {
+    {
+        std::unique_lock<std::mutex> lock(this->mutex_);
+        write_queue_.emplace_back(std::move(packet));
+    }
+
+    cv_.notify_one();
+    return true;
+}
+
 bool FdConnection::Read(apacket* packet) {
     if (!ReadFdExactly(fd_.get(), &packet->msg, sizeof(amessage))) {
         D("remote local: read terminated (message)");
@@ -143,67 +223,6 @@
     return result;
 }
 
-static int read_packet(int fd, const char* name, apacket** ppacket) {
-    ATRACE_NAME("read_packet");
-    char buff[8];
-    if (!name) {
-        snprintf(buff, sizeof buff, "fd=%d", fd);
-        name = buff;
-    }
-    char* p = reinterpret_cast<char*>(ppacket); /* really read a packet address */
-    int len = sizeof(apacket*);
-    while (len > 0) {
-        int r = adb_read(fd, p, len);
-        if (r > 0) {
-            len -= r;
-            p += r;
-        } else {
-            D("%s: read_packet (fd=%d), error ret=%d: %s", name, fd, r, strerror(errno));
-            return -1;
-        }
-    }
-
-    VLOG(TRANSPORT) << dump_packet(name, "from remote", *ppacket);
-    return 0;
-}
-
-static int write_packet(int fd, const char* name, apacket** ppacket) {
-    ATRACE_NAME("write_packet");
-    char buff[8];
-    if (!name) {
-        snprintf(buff, sizeof buff, "fd=%d", fd);
-        name = buff;
-    }
-    VLOG(TRANSPORT) << dump_packet(name, "to remote", *ppacket);
-    char* p = reinterpret_cast<char*>(ppacket); /* we really write the packet address */
-    int len = sizeof(apacket*);
-    while (len > 0) {
-        int r = adb_write(fd, p, len);
-        if (r > 0) {
-            len -= r;
-            p += r;
-        } else {
-            D("%s: write_packet (fd=%d) error ret=%d: %s", name, fd, r, strerror(errno));
-            return -1;
-        }
-    }
-    return 0;
-}
-
-static void transport_socket_events(int fd, unsigned events, void* _t) {
-    atransport* t = reinterpret_cast<atransport*>(_t);
-    D("transport_socket_events(fd=%d, events=%04x,...)", fd, events);
-    if (events & FDE_READ) {
-        apacket* p = 0;
-        if (read_packet(fd, t->serial, &p)) {
-            D("%s: failed to read packet from transport socket on fd %d", t->serial, fd);
-            return;
-        }
-
-        handle_packet(p, (atransport*)_t);
-    }
-}
-
 void send_packet(apacket* p, atransport* t) {
     p->msg.magic = p->msg.command ^ 0xffffffff;
     // compute a checksum for connection/auth packets for compatibility reasons
@@ -213,162 +232,18 @@
         p->msg.data_check = calculate_apacket_checksum(p);
     }
 
-    print_packet("send", p);
+    VLOG(TRANSPORT) << dump_packet(t->serial, "to remote", p);
 
     if (t == NULL) {
         fatal("Transport is null");
     }
 
-    if (write_packet(t->transport_socket, t->serial, &p)) {
-        fatal_errno("cannot enqueue packet on transport socket");
+    if (t->Write(p) != 0) {
+        D("%s: failed to enqueue packet, closing transport", t->serial);
+        t->Kick();
     }
 }
 
-// The transport is opened by transport_register_func before
-// the read_transport and write_transport threads are started.
-//
-// The read_transport thread issues a SYNC(1, token) message to let
-// the write_transport thread know to start things up.  In the event
-// of transport IO failure, the read_transport thread will post a
-// SYNC(0,0) message to ensure shutdown.
-//
-// The transport will not actually be closed until both threads exit, but the threads
-// will kick the transport on their way out to disconnect the underlying device.
-//
-// read_transport thread reads data from a transport (representing a usb/tcp connection),
-// and makes the main thread call handle_packet().
-static void read_transport_thread(void* _t) {
-    atransport* t = reinterpret_cast<atransport*>(_t);
-    apacket* p;
-
-    adb_thread_setname(
-        android::base::StringPrintf("<-%s", (t->serial != nullptr ? t->serial : "transport")));
-    D("%s: starting read_transport thread on fd %d, SYNC online (%d)", t->serial, t->fd,
-      t->sync_token + 1);
-    p = get_apacket();
-    p->msg.command = A_SYNC;
-    p->msg.arg0 = 1;
-    p->msg.arg1 = ++(t->sync_token);
-    p->msg.magic = A_SYNC ^ 0xffffffff;
-    D("sending SYNC packet (len = %u, payload.size() = %zu)", p->msg.data_length, p->payload.size());
-    if (write_packet(t->fd, t->serial, &p)) {
-        put_apacket(p);
-        D("%s: failed to write SYNC packet", t->serial);
-        goto oops;
-    }
-
-    D("%s: data pump started", t->serial);
-    for (;;) {
-        ATRACE_NAME("read_transport loop");
-        p = get_apacket();
-
-        {
-            ATRACE_NAME("read_transport read_remote");
-            if (!t->connection->Read(p)) {
-                D("%s: remote read failed for transport", t->serial);
-                put_apacket(p);
-                break;
-            }
-
-            if (!check_header(p, t)) {
-                D("%s: remote read: bad header", t->serial);
-                put_apacket(p);
-                break;
-            }
-
-#if ADB_HOST
-            if (p->msg.command == 0) {
-                put_apacket(p);
-                continue;
-            }
-#endif
-        }
-
-        D("%s: received remote packet, sending to transport", t->serial);
-        if (write_packet(t->fd, t->serial, &p)) {
-            put_apacket(p);
-            D("%s: failed to write apacket to transport", t->serial);
-            goto oops;
-        }
-    }
-
-    D("%s: SYNC offline for transport", t->serial);
-    p = get_apacket();
-    p->msg.command = A_SYNC;
-    p->msg.arg0 = 0;
-    p->msg.arg1 = 0;
-    p->msg.magic = A_SYNC ^ 0xffffffff;
-    if (write_packet(t->fd, t->serial, &p)) {
-        put_apacket(p);
-        D("%s: failed to write SYNC apacket to transport", t->serial);
-    }
-
-oops:
-    D("%s: read_transport thread is exiting", t->serial);
-    kick_transport(t);
-    transport_unref(t);
-}
-
-// write_transport thread gets packets sent by the main thread (through send_packet()),
-// and writes to a transport (representing a usb/tcp connection).
-static void write_transport_thread(void* _t) {
-    atransport* t = reinterpret_cast<atransport*>(_t);
-    apacket* p;
-    int active = 0;
-
-    adb_thread_setname(
-        android::base::StringPrintf("->%s", (t->serial != nullptr ? t->serial : "transport")));
-    D("%s: starting write_transport thread, reading from fd %d", t->serial, t->fd);
-
-    for (;;) {
-        ATRACE_NAME("write_transport loop");
-        if (read_packet(t->fd, t->serial, &p)) {
-            D("%s: failed to read apacket from transport on fd %d", t->serial, t->fd);
-            break;
-        }
-
-        if (p->msg.command == A_SYNC) {
-            if (p->msg.arg0 == 0) {
-                D("%s: transport SYNC offline", t->serial);
-                put_apacket(p);
-                break;
-            } else {
-                if (p->msg.arg1 == t->sync_token) {
-                    D("%s: transport SYNC online", t->serial);
-                    active = 1;
-                } else {
-                    D("%s: transport ignoring SYNC %d != %d", t->serial, p->msg.arg1, t->sync_token);
-                }
-            }
-        } else {
-            if (active) {
-                D("%s: transport got packet, sending to remote", t->serial);
-                ATRACE_NAME("write_transport write_remote");
-
-                // Allow sending the payload's implicit null terminator.
-                if (p->msg.data_length != p->payload.size()) {
-                    LOG(FATAL) << "packet data length doesn't match payload: msg.data_length = "
-                               << p->msg.data_length << ", payload.size() = " << p->payload.size();
-                }
-
-                if (t->Write(p) != 0) {
-                    D("%s: remote write failed for transport", t->serial);
-                    put_apacket(p);
-                    break;
-                }
-            } else {
-                D("%s: transport ignoring packet while offline", t->serial);
-            }
-        }
-
-        put_apacket(p);
-    }
-
-    D("%s: write_transport thread is exiting, fd %d", t->serial, t->fd);
-    kick_transport(t);
-    transport_unref(t);
-}
-
 void kick_transport(atransport* t) {
     std::lock_guard<std::recursive_mutex> lock(transport_lock);
     // As kick_transport() can be called from threads without guarantee that t is valid,
@@ -559,9 +434,10 @@
     return 0;
 }
 
-static void transport_registration_func(int _fd, unsigned ev, void* data) {
+static void remove_transport(atransport*);
+
+static void transport_registration_func(int _fd, unsigned ev, void*) {
     tmsg m;
-    int s[2];
     atransport* t;
 
     if (!(ev & FDE_READ)) {
@@ -575,13 +451,7 @@
     t = m.transport;
 
     if (m.action == 0) {
-        D("transport: %s removing and free'ing %d", t->serial, t->transport_socket);
-
-        /* IMPORTANT: the remove closes one half of the
-        ** socket pair.  The close closes the other half.
-        */
-        fdevent_remove(&(t->transport_fde));
-        adb_close(t->fd);
+        D("transport: %s deleting", t->serial);
 
         {
             std::lock_guard<std::recursive_mutex> lock(transport_lock);
@@ -603,23 +473,33 @@
     /* don't create transport threads for inaccessible devices */
     if (t->GetConnectionState() != kCsNoPerm) {
         /* initial references are the two threads */
-        t->ref_count = 2;
+        t->ref_count = 1;
+        t->connection->SetTransportName(t->serial_name());
+        t->connection->SetReadCallback([t](Connection*, std::unique_ptr<apacket> p) {
+            if (!check_header(p.get(), t)) {
+                D("%s: remote read: bad header", t->serial);
+                return false;
+            }
 
-        if (adb_socketpair(s)) {
-            fatal_errno("cannot open transport socketpair");
-        }
+            VLOG(TRANSPORT) << dump_packet(t->serial, "from remote", p.get());
+            apacket* packet = p.release();
 
-        D("transport: %s socketpair: (%d,%d) starting", t->serial, s[0], s[1]);
+            // TODO: Does this need to run on the main thread?
+            fdevent_run_on_main_thread([packet, t]() { handle_packet(packet, t); });
+            return true;
+        });
+        t->connection->SetErrorCallback([t](Connection*, const std::string& error) {
+            D("%s: connection terminated: %s", t->serial, error.c_str());
+            fdevent_run_on_main_thread([t]() {
+                handle_offline(t);
+                transport_unref(t);
+            });
+        });
 
-        t->transport_socket = s[0];
-        t->fd = s[1];
-
-        fdevent_install(&(t->transport_fde), t->transport_socket, transport_socket_events, t);
-
-        fdevent_set(&(t->transport_fde), FDE_READ);
-
-        std::thread(write_transport_thread, t).detach();
-        std::thread(read_transport_thread, t).detach();
+        t->connection->Start();
+#if ADB_HOST
+        send_connect(t);
+#endif
     }
 
     {
@@ -685,7 +565,7 @@
     t->ref_count--;
     if (t->ref_count == 0) {
         D("transport: %s unref (kicking and closing)", t->serial);
-        t->connection->Close();
+        t->connection->Stop();
         remove_transport(t);
     } else {
         D("transport: %s unref (count=%zu)", t->serial, t->ref_count);
@@ -736,9 +616,7 @@
     std::unique_lock<std::recursive_mutex> lock(transport_lock);
     for (const auto& t : transport_list) {
         if (t->GetConnectionState() == kCsNoPerm) {
-#if ADB_HOST
             *error_out = UsbNoPermissionsLongHelpText();
-#endif
             continue;
         }
 
@@ -813,14 +691,14 @@
 }
 
 int atransport::Write(apacket* p) {
-    return this->connection->Write(p) ? 0 : -1;
+    return this->connection->Write(std::unique_ptr<apacket>(p)) ? 0 : -1;
 }
 
 void atransport::Kick() {
     if (!kicked_) {
         D("kicking transport %s", this->serial);
         kicked_ = true;
-        this->connection->Close();
+        this->connection->Stop();
     }
 }
 
@@ -833,7 +711,7 @@
     connection_state_ = state;
 }
 
-const std::string atransport::connection_state_name() const {
+std::string atransport::connection_state_name() const {
     ConnectionState state = GetConnectionState();
     switch (state) {
         case kCsOffline:
diff --git a/adb/transport.h b/adb/transport.h
index 9700f44..8b71e34 100644
--- a/adb/transport.h
+++ b/adb/transport.h
@@ -20,12 +20,14 @@
 #include <sys/types.h>
 
 #include <atomic>
+#include <condition_variable>
 #include <deque>
 #include <functional>
 #include <list>
 #include <memory>
 #include <mutex>
 #include <string>
+#include <thread>
 #include <unordered_set>
 
 #include <openssl/rsa.h>
@@ -57,15 +59,47 @@
 
 TransportId NextTransportId();
 
-// Abstraction for a blocking packet transport.
+// Abstraction for a non-blocking packet transport.
 struct Connection {
     Connection() = default;
-    Connection(const Connection& copy) = delete;
-    Connection(Connection&& move) = delete;
-
-    // Destroy a Connection. Formerly known as 'Close' in atransport.
     virtual ~Connection() = default;
 
+    void SetTransportName(std::string transport_name) {
+        transport_name_ = std::move(transport_name);
+    }
+
+    using ReadCallback = std::function<bool(Connection*, std::unique_ptr<apacket>)>;
+    void SetReadCallback(ReadCallback callback) {
+        CHECK(!read_callback_);
+        read_callback_ = callback;
+    }
+
+    // Called after the Connection has terminated, either by an error or because Stop was called.
+    using ErrorCallback = std::function<void(Connection*, const std::string&)>;
+    void SetErrorCallback(ErrorCallback callback) {
+        CHECK(!error_callback_);
+        error_callback_ = callback;
+    }
+
+    virtual bool Write(std::unique_ptr<apacket> packet) = 0;
+
+    virtual void Start() = 0;
+    virtual void Stop() = 0;
+
+    std::string transport_name_;
+    ReadCallback read_callback_;
+    ErrorCallback error_callback_;
+};
+
+// Abstraction for a blocking packet transport.
+struct BlockingConnection {
+    BlockingConnection() = default;
+    BlockingConnection(const BlockingConnection& copy) = delete;
+    BlockingConnection(BlockingConnection&& move) = delete;
+
+    // Destroy a BlockingConnection. Formerly known as 'Close' in atransport.
+    virtual ~BlockingConnection() = default;
+
     // Read/Write a packet. These functions are concurrently called from a transport's reader/writer
     // threads.
     virtual bool Read(apacket* packet) = 0;
@@ -77,7 +111,30 @@
     virtual void Close() = 0;
 };
 
-struct FdConnection : public Connection {
+struct BlockingConnectionAdapter : public Connection {
+    explicit BlockingConnectionAdapter(std::unique_ptr<BlockingConnection> connection);
+
+    virtual ~BlockingConnectionAdapter();
+
+    virtual bool Write(std::unique_ptr<apacket> packet) override final;
+
+    virtual void Start() override final;
+    virtual void Stop() override final;
+
+    bool stopped_ = false;
+
+    std::unique_ptr<BlockingConnection> underlying_;
+    std::thread read_thread_;
+    std::thread write_thread_;
+
+    std::deque<std::unique_ptr<apacket>> write_queue_;
+    std::mutex mutex_;
+    std::condition_variable cv_;
+
+    std::once_flag error_flag_;
+};
+
+struct FdConnection : public BlockingConnection {
     explicit FdConnection(unique_fd fd) : fd_(std::move(fd)) {}
 
     bool Read(apacket* packet) override final;
@@ -89,7 +146,7 @@
     unique_fd fd_;
 };
 
-struct UsbConnection : public Connection {
+struct UsbConnection : public BlockingConnection {
     explicit UsbConnection(usb_handle* handle) : handle_(handle) {}
     ~UsbConnection();
 
@@ -110,7 +167,6 @@
 
     atransport(ConnectionState state = kCsOffline)
         : id(NextTransportId()), connection_state_(state) {
-        transport_fde = {};
         // Initialize protocol to min version for compatibility with older versions.
         // Version will be updated post-connect.
         protocol_version = A_VERSION_MIN;
@@ -126,11 +182,7 @@
     void SetConnectionState(ConnectionState state);
 
     const TransportId id;
-    int fd = -1;
-    int transport_socket = -1;
-    fdevent transport_fde;
     size_t ref_count = 0;
-    uint32_t sync_token = 0;
     bool online = false;
     TransportType type = kTransportAny;
 
@@ -152,8 +204,8 @@
     char token[TOKEN_SIZE] = {};
     size_t failed_auth_attempts = 0;
 
-    const std::string serial_name() const { return serial ? serial : "<unknown>"; }
-    const std::string connection_state_name() const;
+    std::string serial_name() const { return serial ? serial : "<unknown>"; }
+    std::string connection_state_name() const;
 
     void update_version(int version, size_t payload);
     int get_protocol_version() const;
diff --git a/adb/transport_local.cpp b/adb/transport_local.cpp
index 560a031..c09fcb7 100644
--- a/adb/transport_local.cpp
+++ b/adb/transport_local.cpp
@@ -45,6 +45,7 @@
 #include "adb_unique_fd.h"
 #include "adb_utils.h"
 #include "sysdeps/chrono.h"
+#include "sysdeps/memory.h"
 
 #if ADB_HOST
 
@@ -445,13 +446,13 @@
     int fail = 0;
 
     unique_fd fd(s);
-    t->sync_token = 1;
     t->type = kTransportLocal;
 
 #if ADB_HOST
     // Emulator connection.
     if (local) {
-        t->connection.reset(new EmulatorConnection(std::move(fd), adb_port));
+        auto emulator_connection = std::make_unique<EmulatorConnection>(std::move(fd), adb_port);
+        t->connection = std::make_unique<BlockingConnectionAdapter>(std::move(emulator_connection));
         std::lock_guard<std::mutex> lock(local_transports_lock);
         atransport* existing_transport = find_emulator_transport_by_adb_port_locked(adb_port);
         if (existing_transport != NULL) {
@@ -470,6 +471,7 @@
 #endif
 
     // Regular tcp connection.
-    t->connection.reset(new FdConnection(std::move(fd)));
+    auto fd_connection = std::make_unique<FdConnection>(std::move(fd));
+    t->connection = std::make_unique<BlockingConnectionAdapter>(std::move(fd_connection));
     return fail;
 }
diff --git a/adb/transport_usb.cpp b/adb/transport_usb.cpp
index d7565f6..e9a75cd 100644
--- a/adb/transport_usb.cpp
+++ b/adb/transport_usb.cpp
@@ -17,6 +17,7 @@
 #define TRACE_TAG TRANSPORT
 
 #include "sysdeps.h"
+#include "sysdeps/memory.h"
 #include "transport.h"
 
 #include <stdio.h>
@@ -174,8 +175,8 @@
 
 void init_usb_transport(atransport* t, usb_handle* h) {
     D("transport: usb");
-    t->connection.reset(new UsbConnection(h));
-    t->sync_token = 1;
+    auto connection = std::make_unique<UsbConnection>(h);
+    t->connection = std::make_unique<BlockingConnectionAdapter>(std::move(connection));
     t->type = kTransportUsb;
 }
 
diff --git a/base/Android.bp b/base/Android.bp
index 5d70d47..7b0ba11 100644
--- a/base/Android.bp
+++ b/base/Android.bp
@@ -50,6 +50,7 @@
         "quick_exit.cpp",
         "stringprintf.cpp",
         "strings.cpp",
+        "threads.cpp",
         "test_utils.cpp",
     ],
 
diff --git a/base/include/android-base/test_utils.h b/base/include/android-base/test_utils.h
index 2edafe3..b95fa07 100644
--- a/base/include/android-base/test_utils.h
+++ b/base/include/android-base/test_utils.h
@@ -31,6 +31,8 @@
   // Release the ownership of fd, caller is reponsible for closing the
   // fd or stream properly.
   int release();
+  // Don't remove the temporary file in the destructor.
+  void DoNotRemove() { remove_file_ = false; }
 
   int fd;
   char path[1024];
@@ -38,6 +40,8 @@
  private:
   void init(const std::string& tmp_dir);
 
+  bool remove_file_ = true;
+
   DISALLOW_COPY_AND_ASSIGN(TemporaryFile);
 };
 
diff --git a/adb/transport_mdns_unsupported.cpp b/base/include/android-base/threads.h
similarity index 70%
rename from adb/transport_mdns_unsupported.cpp
rename to base/include/android-base/threads.h
index 387d341..85e65ba 100644
--- a/adb/transport_mdns_unsupported.cpp
+++ b/base/include/android-base/threads.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2016 The Android Open Source Project
+ * Copyright (C) 2018 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.
@@ -14,5 +14,15 @@
  * limitations under the License.
  */
 
-/* For when mDNS discovery is unsupported */
-void init_mdns_transport_discovery(void) {}
+#ifndef ANDROID_BASE_THREADS_H
+#define ANDROID_BASE_THREADS_H
+
+#include <stdint.h>
+
+namespace android {
+namespace base {
+uint64_t GetThreadId();
+}
+}  // namespace android
+
+#endif
diff --git a/base/logging.cpp b/base/logging.cpp
index a31feef..30d7f8d 100644
--- a/base/logging.cpp
+++ b/base/logging.cpp
@@ -21,6 +21,7 @@
 #include "android-base/logging.h"
 
 #include <fcntl.h>
+#include <inttypes.h>
 #include <libgen.h>
 #include <time.h>
 
@@ -54,41 +55,7 @@
 
 #include <android-base/macros.h>
 #include <android-base/strings.h>
-
-// For gettid.
-#if defined(__APPLE__)
-#include "AvailabilityMacros.h"  // For MAC_OS_X_VERSION_MAX_ALLOWED
-#include <stdint.h>
-#include <stdlib.h>
-#include <sys/syscall.h>
-#include <sys/time.h>
-#include <unistd.h>
-#elif defined(__linux__) && !defined(__ANDROID__)
-#include <syscall.h>
-#include <unistd.h>
-#elif defined(_WIN32)
-#include <windows.h>
-#endif
-
-#if defined(_WIN32)
-typedef uint32_t thread_id;
-#else
-typedef pid_t thread_id;
-#endif
-
-static thread_id GetThreadId() {
-#if defined(__BIONIC__)
-  return gettid();
-#elif defined(__APPLE__)
-  uint64_t tid;
-  pthread_threadid_np(NULL, &tid);
-  return tid;
-#elif defined(__linux__)
-  return syscall(__NR_gettid);
-#elif defined(_WIN32)
-  return GetCurrentThreadId();
-#endif
-}
+#include <android-base/threads.h>
 
 namespace {
 #if defined(__GLIBC__)
@@ -223,8 +190,8 @@
   static_assert(arraysize(log_characters) - 1 == FATAL + 1,
                 "Mismatch in size of log_characters and values in LogSeverity");
   char severity_char = log_characters[severity];
-  fprintf(stderr, "%s %c %s %5d %5d %s:%u] %s\n", tag ? tag : "nullptr", severity_char, timestamp,
-          getpid(), GetThreadId(), file, line, message);
+  fprintf(stderr, "%s %c %s %5d %5" PRIu64 " %s:%u] %s\n", tag ? tag : "nullptr", severity_char,
+          timestamp, getpid(), GetThreadId(), file, line, message);
 }
 
 void DefaultAborter(const char* abort_message) {
diff --git a/base/test_utils.cpp b/base/test_utils.cpp
index 9d8dfb2..1619c21 100644
--- a/base/test_utils.cpp
+++ b/base/test_utils.cpp
@@ -92,7 +92,9 @@
   if (fd != -1) {
     close(fd);
   }
-  unlink(path);
+  if (remove_file_) {
+    unlink(path);
+  }
 }
 
 int TemporaryFile::release() {
diff --git a/base/threads.cpp b/base/threads.cpp
new file mode 100644
index 0000000..a71382b
--- /dev/null
+++ b/base/threads.cpp
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2018 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 <android-base/threads.h>
+
+#include <stdint.h>
+#include <unistd.h>
+
+#if defined(__APPLE__)
+#include <pthread.h>
+#elif defined(__linux__) && !defined(__ANDROID__)
+#include <syscall.h>
+#elif defined(_WIN32)
+#include <windows.h>
+#endif
+
+namespace android {
+namespace base {
+
+uint64_t GetThreadId() {
+#if defined(__BIONIC__)
+  return gettid();
+#elif defined(__APPLE__)
+  uint64_t tid;
+  pthread_threadid_np(NULL, &tid);
+  return tid;
+#elif defined(__linux__)
+  return syscall(__NR_gettid);
+#elif defined(_WIN32)
+  return GetCurrentThreadId();
+#endif
+}
+
+}  // namespace base
+}  // namespace android
diff --git a/bootstat/boot_reason_test.sh b/bootstat/boot_reason_test.sh
index 79702a6..1043df1 100755
--- a/bootstat/boot_reason_test.sh
+++ b/bootstat/boot_reason_test.sh
@@ -239,6 +239,8 @@
   return 0
 }
 
+BAD_BOOTLOADER_REASON=
+
 [ "USAGE: EXPECT_PROPERTY <prop> <value> [--allow_failure]
 
 Returns true (0) if current return (regex) value is true and the result matches
@@ -249,9 +251,20 @@
   value="${2}"
   shift 2
   val=`adb shell getprop ${property} 2>&1`
-  EXPECT_EQ "${value}" "${val}" for Android property ${property} ||
-    [ -n "${1}" ] ||
-    save_ret=${?}
+  EXPECT_EQ "${value}" "${val}" for Android property ${property}
+  local_ret=${?}
+  if [ 0 != ${local_ret} -a "ro.boot.bootreason" = "${property}" ]; then
+    if [ -z "${BAD_BOOTLOADER_REASON}" ]; then
+      BAD_BOOTLOADER_REASON=${val}
+    elif [ X"${BAD_BOOTLOADER_REASON}" = X"${val}" ]; then
+      local_ret=0
+    fi
+  fi
+  if [ 0 != ${local_ret} ]; then
+    if [ -z "${1}" ] ; then
+      save_ret=${local_ret}
+    fi
+  fi
   return ${save_ret}
 }
 
@@ -287,6 +300,7 @@
 bootstat: Service started: /system/bin/bootstat --record_boot_reason
 bootstat: Service started: /system/bin/bootstat --record_time_since_factory_reset
 bootstat: Service started: /system/bin/bootstat -l
+bootstat: Service started: /system/bin/bootstat --set_system_boot_reason --record_boot_complete --record_boot_reason --record_time_since_factory_reset -l
 bootstat: Battery level at shutdown 100%
 bootstat: Battery level at startup 100%
 init    : Parsing file /system/etc/init/bootstat.rc...
@@ -407,29 +421,31 @@
        tr ' \f\t\r\n' '_____'`
   case ${var} in
     watchdog | watchdog,?* ) ;;
-    kernel_panic | kernel_panic,?*) ;;
-    recovery | recovery,?*) ;;
-    bootloader | bootloader,?*) ;;
-    cold | cold,?*) ;;
-    hard | hard,?*) ;;
-    warm | warm,?*) ;;
-    shutdown | shutdown,?*) ;;
+    kernel_panic | kernel_panic,?* ) ;;
+    recovery | recovery,?* ) ;;
+    bootloader | bootloader,?* ) ;;
+    cold | cold,?* ) ;;
+    hard | hard,?* ) ;;
+    warm | warm,?* ) ;;
+    shutdown | shutdown,?* ) ;;
     reboot,reboot | reboot,reboot,* )     var=${var#reboot,} ; var=${var%,} ;;
     reboot,cold | reboot,cold,* )         var=${var#reboot,} ; var=${var%,} ;;
     reboot,hard | reboot,hard,* )         var=${var#reboot,} ; var=${var%,} ;;
     reboot,warm | reboot,warm,* )         var=${var#reboot,} ; var=${var%,} ;;
     reboot,recovery | reboot,recovery,* ) var=${var#reboot,} ; var=${var%,} ;;
     reboot,bootloader | reboot,bootloader,* ) var=${var#reboot,} ; var=${var%,} ;;
-    reboot | reboot,?*) ;;
+    reboot | reboot,?* ) ;;
     # Aliases and Heuristics
-    *wdog* | *watchdog* )     var="watchdog" ;;
-    *powerkey* )              var="cold,powerkey" ;;
-    *panic* | *kernel_panic*) var="kernel_panic" ;;
-    *thermal*)                var="shutdown,thermal" ;;
-    *s3_wakeup*)              var="warm,s3_wakeup" ;;
-    *hw_reset*)               var="hard,hw_reset" ;;
-    *bootloader*)             var="bootloader" ;;
-    *)                        var="reboot" ;;
+    *wdog* | *watchdog* )                   var="watchdog" ;;
+    *powerkey* | *power_key* | *PowerKey* ) var="cold,powerkey" ;;
+    *panic* | *kernel_panic* )              var="kernel_panic" ;;
+    *thermal* )                             var="shutdown,thermal" ;;
+    *s3_wakeup* )                           var="warm,s3_wakeup" ;;
+    *hw_reset* )                            var="hard,hw_reset" ;;
+    *usb* )                                 var="cold,charger" ;;
+    *rtc* )                                 var="cold,rtc" ;;
+    *bootloader* )                          var="bootloader" ;;
+    * )                                     var="reboot" ;;
   esac
   echo ${var}
 }
diff --git a/bootstat/bootstat.cpp b/bootstat/bootstat.cpp
index d8ee899..8a89393 100644
--- a/bootstat/bootstat.cpp
+++ b/bootstat/bootstat.cpp
@@ -29,7 +29,9 @@
 #include <ctime>
 #include <map>
 #include <memory>
+#include <regex>
 #include <string>
+#include <utility>
 #include <vector>
 
 #include <android-base/chrono_utils.h>
@@ -139,7 +141,7 @@
 // values.
 const std::map<std::string, int32_t> kBootReasonMap = {
     {"empty", kEmptyBootReason},
-    {"unknown", kUnknownBootReason},
+    {"__BOOTSTAT_UNKNOWN__", kUnknownBootReason},
     {"normal", 2},
     {"recovery", 3},
     {"reboot", 4},
@@ -192,12 +194,14 @@
     {"s3_wakeup", 51},
     {"kernel_panic,sysrq", 52},
     {"kernel_panic,NULL", 53},
+    {"kernel_panic,null", 53},
     {"kernel_panic,BUG", 54},
+    {"kernel_panic,bug", 54},
     {"bootloader", 55},
     {"cold", 56},
     {"hard", 57},
     {"warm", 58},
-    {"recovery", 59},
+    // {"recovery", 59},  // Duplicate of enum 3 above. Immediate reuse possible.
     {"thermal-shutdown", 60},
     {"shutdown,thermal", 61},
     {"shutdown,battery", 62},
@@ -228,7 +232,7 @@
     {"shutdown,thermal,battery", 87},
     {"reboot,its_just_so_hard", 88},  // produced by boot_reason_test
     {"reboot,Its Just So Hard", 89},  // produced by boot_reason_test
-    {"usb", 90},
+    // {"usb", 90},  // Duplicate of enum 80 above. Immediate reuse possible.
     {"charge", 91},
     {"oem_tz_crash", 92},
     {"uvlo", 93},
@@ -286,6 +290,12 @@
     {"oem_sdi_err_fatal", 145},
     {"pmic_watchdog", 146},
     {"software_master", 147},
+    {"cold,charger", 148},
+    {"cold,rtc", 149},
+    {"cold,rtc,2sec", 150},
+    {"reboot,tool", 151},
+    {"reboot,wdt", 152},
+    {"reboot,unknown", 153},
 };
 
 // Converts a string value representing the reason the system booted to an
@@ -462,11 +472,13 @@
     }
     return std::string::npos;
   }
+
+  operator const std::string&() const { return console; }
 };
 
 // If bit error match to needle, correct it.
 // Return true if any corrections were discovered and applied.
-bool correctForBer(std::string& reason, const std::string& needle) {
+bool correctForBitError(std::string& reason, const std::string& needle) {
   bool corrected = false;
   if (reason.length() < needle.length()) return corrected;
   const pstoreConsole console(reason);
@@ -484,20 +496,83 @@
   return corrected;
 }
 
+// If bit error match to needle, correct it.
+// Return true if any corrections were discovered and applied.
+// Try again if we can replace underline with spaces.
+bool correctForBitErrorOrUnderline(std::string& reason, const std::string& needle) {
+  bool corrected = correctForBitError(reason, needle);
+  std::string _needle(needle);
+  std::transform(_needle.begin(), _needle.end(), _needle.begin(),
+                 [](char c) { return (c == '_') ? ' ' : c; });
+  if (needle != _needle) {
+    corrected |= correctForBitError(reason, _needle);
+  }
+  return corrected;
+}
+
+// Converts a string value representing the reason the system booted to a
+// string complying with Android system standard reason.
+void transformReason(std::string& reason) {
+  std::transform(reason.begin(), reason.end(), reason.begin(), ::tolower);
+  std::transform(reason.begin(), reason.end(), reason.begin(),
+                 [](char c) { return ::isblank(c) ? '_' : c; });
+  std::transform(reason.begin(), reason.end(), reason.begin(),
+                 [](char c) { return ::isprint(c) ? c : '?'; });
+}
+
+// Pull out and correct quoted (') subreason, pos just beyond first quote.
+// Check subreasons for reboot,<subreason> and kernel_panic,sysrq,<subreason>
+std::string getSubreason(const std::string& content, size_t pos) {
+  static constexpr size_t max_reason_length = 256;
+
+  std::string subReason(content.substr(pos, max_reason_length));
+  // Correct against any known strings that Bit Error Match
+  for (const auto& s : knownReasons) {
+    correctForBitErrorOrUnderline(subReason, s);
+  }
+  for (const auto& m : kBootReasonMap) {
+    if (m.first.length() <= strlen("cold")) continue;  // too short?
+    if (correctForBitErrorOrUnderline(subReason, m.first + "'")) continue;
+    if (m.first.length() <= strlen("reboot,cold")) continue;  // short?
+    if (android::base::StartsWith(m.first, "reboot,")) {
+      correctForBitErrorOrUnderline(subReason, m.first.substr(strlen("reboot,")) + "'");
+    } else if (android::base::StartsWith(m.first, "kernel_panic,sysrq,")) {
+      correctForBitErrorOrUnderline(subReason, m.first.substr(strlen("kernel_panic,sysrq,")) + "'");
+    }
+  }
+  for (pos = 0; pos < subReason.length(); ++pos) {
+    char c = subReason[pos];
+    // #, &, %, / are common single bit error for ' that we can block
+    if (!::isprint(c) || (c == '\'') || (c == '#') || (c == '&') || (c == '%') || (c == '/')) {
+      subReason.erase(pos);
+      break;
+    }
+  }
+  transformReason(subReason);
+  return subReason;
+}
+
 bool addKernelPanicSubReason(const pstoreConsole& console, std::string& ret) {
   // Check for kernel panic types to refine information
-  if (console.rfind("SysRq : Trigger a crash") != std::string::npos) {
-    // Can not happen, except on userdebug, during testing/debugging.
+  if ((console.rfind("SysRq : Trigger a crash") != std::string::npos) ||
+      (console.rfind("PC is at sysrq_handle_crash+") != std::string::npos)) {
     ret = "kernel_panic,sysrq";
+    // Invented for Android to allow daemons that specifically trigger sysrq
+    // to communicate more accurate boot subreasons via last console messages.
+    static constexpr char sysrqSubreason[] = "SysRq : Trigger a crash : '";
+    auto pos = console.rfind(sysrqSubreason);
+    if (pos != std::string::npos) {
+      ret += "," + getSubreason(console, pos + strlen(sysrqSubreason));
+    }
     return true;
   }
   if (console.rfind("Unable to handle kernel NULL pointer dereference at virtual address") !=
       std::string::npos) {
-    ret = "kernel_panic,NULL";
+    ret = "kernel_panic,null";
     return true;
   }
   if (console.rfind("Kernel BUG at ") != std::string::npos) {
-    ret = "kernel_panic,BUG";
+    ret = "kernel_panic,bug";
     return true;
   }
   return false;
@@ -507,32 +582,12 @@
   return addKernelPanicSubReason(pstoreConsole(content), ret);
 }
 
-// std::transform Helper callback functions:
-// Converts a string value representing the reason the system booted to a
-// string complying with Android system standard reason.
-char tounderline(char c) {
-  return ::isblank(c) ? '_' : c;
-}
-
-char toprintable(char c) {
-  return ::isprint(c) ? c : '?';
-}
-
-// Cleanup boot_reason regarding acceptable character set
-void transformReason(std::string& reason) {
-  std::transform(reason.begin(), reason.end(), reason.begin(), ::tolower);
-  std::transform(reason.begin(), reason.end(), reason.begin(), tounderline);
-  std::transform(reason.begin(), reason.end(), reason.begin(), toprintable);
-}
-
 const char system_reboot_reason_property[] = "sys.boot.reason";
 const char last_reboot_reason_property[] = LAST_REBOOT_REASON_PROPERTY;
 const char bootloader_reboot_reason_property[] = "ro.boot.bootreason";
 
 // Scrub, Sanitize, Standardize and Enhance the boot reason string supplied.
 std::string BootReasonStrToReason(const std::string& boot_reason) {
-  static const size_t max_reason_length = 256;
-
   std::string ret(GetProperty(system_reboot_reason_property));
   std::string reason(boot_reason);
   // If sys.boot.reason == ro.boot.bootreason, let's re-evaluate
@@ -567,26 +622,36 @@
     // A series of checks to take some officially unsupported reasons
     // reported by the bootloader and find some logical and canonical
     // sense.  In an ideal world, we would require those bootloaders
-    // to behave and follow our standards.
+    // to behave and follow our CTS standards.
+    //
+    // first member is the output
+    // second member is an unanchored regex for an alias
+    //
+    // If output has a prefix of <bang> '!', we do not use it as a
+    // match needle (and drop the <bang> prefix when landing in output),
+    // otherwise look for it as well. This helps keep the scale of the
+    // following table smaller.
     static const std::vector<std::pair<const std::string, const std::string>> aliasReasons = {
         {"watchdog", "wdog"},
-        {"cold,powerkey", "powerkey"},
+        {"cold,powerkey", "powerkey|power_key|PowerKey"},
         {"kernel_panic", "panic"},
         {"shutdown,thermal", "thermal"},
         {"warm,s3_wakeup", "s3_wakeup"},
         {"hard,hw_reset", "hw_reset"},
+        {"cold,charger", "usb"},
+        {"cold,rtc", "rtc"},
         {"reboot,2sec", "2sec_reboot"},
         {"bootloader", ""},
     };
 
-    // Either the primary or alias is found _somewhere_ in the reason string.
     for (auto& s : aliasReasons) {
-      if (reason.find(s.first) != std::string::npos) {
+      size_t firstHasNot = s.first[0] == '!';
+      if (!firstHasNot && (reason.find(s.first) != std::string::npos)) {
         ret = s.first;
         break;
       }
-      if (s.second.size() && (reason.find(s.second) != std::string::npos)) {
-        ret = s.first;
+      if (s.second.size() && std::regex_search(reason, std::regex(s.second))) {
+        ret = s.first.substr(firstHasNot);
         break;
       }
     }
@@ -625,28 +690,7 @@
       static const char cmd[] = "reboot: Restarting system with command '";
       size_t pos = console.rfind(cmd);
       if (pos != std::string::npos) {
-        pos += strlen(cmd);
-        std::string subReason(content.substr(pos, max_reason_length));
-        // Correct against any known strings that Bit Error Match
-        for (const auto& s : knownReasons) {
-          correctForBer(subReason, s);
-        }
-        for (const auto& m : kBootReasonMap) {
-          if (m.first.length() <= strlen("cold")) continue;  // too short?
-          if (correctForBer(subReason, m.first + "'")) continue;
-          if (m.first.length() <= strlen("reboot,cold")) continue;  // short?
-          if (!android::base::StartsWith(m.first, "reboot,")) continue;
-          correctForBer(subReason, m.first.substr(strlen("reboot,")) + "'");
-        }
-        for (pos = 0; pos < subReason.length(); ++pos) {
-          char c = subReason[pos];
-          // #, &, %, / are common single bit error for ' that we can block
-          if (!::isprint(c) || (c == '\'') || (c == '#') || (c == '&') || (c == '%') || (c == '/')) {
-            subReason.erase(pos);
-            break;
-          }
-        }
-        transformReason(subReason);
+        std::string subReason(getSubreason(content, pos + strlen(cmd)));
         if (subReason != "") {  // Will not land "reboot" as that is too blunt.
           if (isKernelRebootReason(subReason)) {
             ret = "reboot," + subReason;  // User space can't talk kernel reasons.
@@ -684,7 +728,7 @@
       if (pos != std::string::npos) {
         digits = content.substr(pos + strlen(battery), strlen("100 "));
         // correct common errors
-        correctForBer(digits, "100 ");
+        correctForBitError(digits, "100 ");
         if (digits[0] == '!') digits[0] = '1';
         if (digits[1] == '!') digits[1] = '1';
       }
diff --git a/diagnose_usb/Android.bp b/diagnose_usb/Android.bp
new file mode 100644
index 0000000..a7ecf37
--- /dev/null
+++ b/diagnose_usb/Android.bp
@@ -0,0 +1,13 @@
+cc_library_static {
+    name: "libdiagnose_usb",
+    cflags: ["-Wall", "-Wextra", "-Werror"],
+    host_supported: true,
+    target: {
+        windows: {
+            enabled: true,
+        },
+    },
+    srcs: ["diagnose_usb.cpp"],
+    export_include_dirs: ["include"],
+    static_libs: ["libbase"],
+}
diff --git a/diagnose_usb/OWNERS b/diagnose_usb/OWNERS
new file mode 100644
index 0000000..643b448
--- /dev/null
+++ b/diagnose_usb/OWNERS
@@ -0,0 +1,2 @@
+jmgao@google.com
+yabinc@google.com
diff --git a/adb/diagnose_usb.cpp b/diagnose_usb/diagnose_usb.cpp
similarity index 97%
rename from adb/diagnose_usb.cpp
rename to diagnose_usb/diagnose_usb.cpp
index 9f721bf..5695ece 100644
--- a/adb/diagnose_usb.cpp
+++ b/diagnose_usb/diagnose_usb.cpp
@@ -33,7 +33,7 @@
 // Returns a message describing any potential problems we find with udev, or an empty string if we
 // can't find plugdev information (i.e. udev is not installed).
 static std::string GetUdevProblem() {
-#if defined(__linux__)
+#if defined(__linux__) && !defined(__BIONIC__)
     errno = 0;
     group* plugdev_group = getgrnam("plugdev");
 
diff --git a/adb/diagnose_usb.h b/diagnose_usb/include/diagnose_usb.h
similarity index 100%
rename from adb/diagnose_usb.h
rename to diagnose_usb/include/diagnose_usb.h
diff --git a/fs_mgr/fs_mgr_fstab.cpp b/fs_mgr/fs_mgr_fstab.cpp
index 9b7405a..72a65d2 100644
--- a/fs_mgr/fs_mgr_fstab.cpp
+++ b/fs_mgr/fs_mgr_fstab.cpp
@@ -33,6 +33,8 @@
 
 #include "fs_mgr_priv.h"
 
+using android::base::StartsWith;
+
 const std::string kDefaultAndroidDtDir("/proc/device-tree/firmware/android");
 
 struct fs_mgr_flag_values {
@@ -439,6 +441,10 @@
             LERROR << "dt_fstab: Failed to find device for partition " << dp->d_name;
             return {};
         }
+        if (!StartsWith(value, "/dev")) {
+            LERROR << "dt_fstab: Invalid device node for partition " << dp->d_name;
+            return {};
+        }
         fstab_entry.push_back(value);
 
         std::string mount_point;
diff --git a/healthd/Android.mk b/healthd/Android.mk
index 7792eaf..58661fe 100644
--- a/healthd/Android.mk
+++ b/healthd/Android.mk
@@ -74,9 +74,6 @@
 ifeq ($(strip $(BOARD_CHARGER_NO_UI)),true)
 LOCAL_CHARGER_NO_UI := true
 endif
-ifdef BRILLO
-LOCAL_CHARGER_NO_UI := true
-endif
 
 LOCAL_SRC_FILES := \
     charger.cpp \
diff --git a/init/README.md b/init/README.md
index 5c2352b..59ddd77 100644
--- a/init/README.md
+++ b/init/README.md
@@ -161,6 +161,25 @@
 Options are modifiers to services.  They affect how and when init
 runs the service.
 
+`capabilities <capability> [ <capability>\* ]`
+> Set capabilities when exec'ing this service. 'capability' should be a Linux
+  capability without the "CAP\_" prefix, like "NET\_ADMIN" or "SETPCAP". See
+  http://man7.org/linux/man-pages/man7/capabilities.7.html for a list of Linux
+  capabilities.
+
+`class <name> [ <name>\* ]`
+> Specify class names for the service.  All services in a
+  named class may be started or stopped together.  A service
+  is in the class "default" if one is not specified via the
+  class option. Additional classnames beyond the (required) first
+  one are used to group services.
+  The `animation` class should include all services necessary for both
+  boot animation and shutdown animation. As these services can be
+  launched very early during bootup and can run until the last stage
+  of shutdown, access to /data partition is not guaranteed. These
+  services can check files under /data but it should not keep files opened
+  and should work when /data is not available.
+
 `console [<console>]`
 > This service needs a console. The optional second parameter chooses a
   specific console instead of the default. The default "/dev/console" can
@@ -176,9 +195,93 @@
 > This service will not automatically start with its class.
   It must be explicitly started by name.
 
+`file <path> <type>`
+> Open a file path and pass its fd to the launched process. _type_ must be
+  "r", "w" or "rw".  For native executables see libcutils
+  android\_get\_control\_file().
+
+`group <groupname> [ <groupname>\* ]`
+> Change to 'groupname' before exec'ing this service.  Additional
+  groupnames beyond the (required) first one are used to set the
+  supplemental groups of the process (via setgroups()).
+  Currently defaults to root.  (??? probably should default to nobody)
+
+`interface <interface name> <instance name>`
+> Associates this service with a list of the HIDL services that it provides. The interface name
+  must be a fully-qualified name and not a value name. This is used to allow hwservicemanager to
+  lazily start services.
+  For example: interface vendor.foo.bar@1.0::IBaz default
+
+`ioprio <class> <priority>`
+> Sets the IO priority and IO priority class for this service via the SYS_ioprio_set syscall.
+  _class_ must be one of "rt", "be", or "idle". _priority_ must be an integer in the range 0 - 7.
+
+`keycodes <keycode> [ <keycode>\* ]`
+> Sets the keycodes that will trigger this service. If all of the keys corresponding to the passed
+  keycodes are pressed at once, the service will start. This is typically used to start the
+  bugreport service.
+
+`memcg.limit_in_bytes <value>`
+> Sets the child's memory.limit_in_bytes to the specified value (only if memcg is mounted),
+  which must be equal or greater than 0.
+
+`memcg.soft_limit_in_bytes <value>`
+> Sets the child's memory.soft_limit_in_bytes to the specified value (only if memcg is mounted),
+  which must be equal or greater than 0.
+
+`memcg.swappiness <value>`
+> Sets the child's memory.swappiness to the specified value (only if memcg is mounted),
+  which must be equal or greater than 0.
+
+`namespace <pid|mnt>`
+> Enter a new PID or mount namespace when forking the service.
+
+`oneshot`
+> Do not restart the service when it exits.
+
+`onrestart`
+> Execute a Command (see below) when service restarts.
+
+`oom_score_adjust <value>`
+> Sets the child's /proc/self/oom\_score\_adj to the specified value,
+  which must range from -1000 to 1000.
+
+`override`
+> Indicates that this service definition is meant to override a previous definition for a service
+  with the same name. This is typically meant for services on /odm to override those defined on
+  /vendor. The last service definition that init parses with this keyword is the service definition
+  will use for this service. Pay close attention to the order in which init.rc files are parsed,
+  since it has some peculiarities for backwards compatibility reasons. The 'imports' section of
+  this file has more details on the order.
+
+`priority <priority>`
+> Scheduling priority of the service process. This value has to be in range
+  -20 to 19. Default priority is 0. Priority is set via setpriority().
+
+`rlimit <resource> <cur> <max>`
+> This applies the given rlimit to the service. rlimits are inherited by child
+  processes, so this effectively applies the given rlimit to the process tree
+  started by this service.
+  It is parsed similarly to the setrlimit command specified below.
+
+`seclabel <seclabel>`
+> Change to 'seclabel' before exec'ing this service.
+  Primarily for use by services run from the rootfs, e.g. ueventd, adbd.
+  Services on the system partition can instead use policy-defined transitions
+  based on their file security context.
+  If not specified and no transition is defined in policy, defaults to the init context.
+
 `setenv <name> <value>`
 > Set the environment variable _name_ to _value_ in the launched process.
 
+`shutdown <shutdown_behavior>`
+> Set shutdown behavior of the service process. When this is not specified,
+  the service is killed during shutdown process by using SIGTERM and SIGKILL.
+  The service with shutdown_behavior of "critical" is not killed during shutdown
+  until shutdown times out. When shutdown times out, even services tagged with
+  "shutdown critical" will be killed. When the service tagged with "shutdown critical"
+  is not running when shut down starts, it will be started.
+
 `socket <name> <type> <perm> [ <user> [ <group> [ <seclabel> ] ] ]`
 > Create a unix domain socket named /dev/socket/_name_ and pass its fd to the
   launched process.  _type_ must be "dgram", "stream" or "seqpacket".  User and
@@ -187,11 +290,6 @@
   seclabel or computed based on the service executable file security context.
   For native executables see libcutils android\_get\_control\_socket().
 
-`file <path> <type>`
-> Open a file path and pass its fd to the launched process. _type_ must be
-  "r", "w" or "rw".  For native executables see libcutils
-  android\_get\_control\_file().
-
 `user <username>`
 > Change to 'username' before exec'ing this service.
   Currently defaults to root.  (??? probably should default to nobody)
@@ -208,88 +306,12 @@
   As of Android O, processes can also request capabilities directly in their .rc
   files. See the "capabilities" option below.
 
-`group <groupname> [ <groupname>\* ]`
-> Change to 'groupname' before exec'ing this service.  Additional
-  groupnames beyond the (required) first one are used to set the
-  supplemental groups of the process (via setgroups()).
-  Currently defaults to root.  (??? probably should default to nobody)
-
-`capabilities <capability> [ <capability>\* ]`
-> Set capabilities when exec'ing this service. 'capability' should be a Linux
-  capability without the "CAP\_" prefix, like "NET\_ADMIN" or "SETPCAP". See
-  http://man7.org/linux/man-pages/man7/capabilities.7.html for a list of Linux
-  capabilities.
-
-`setrlimit <resource> <cur> <max>`
-> This applies the given rlimit to the service. rlimits are inherited by child
-  processes, so this effectively applies the given rlimit to the process tree
-  started by this service.
-  It is parsed similarly to the setrlimit command specified below.
-
-`seclabel <seclabel>`
-> Change to 'seclabel' before exec'ing this service.
-  Primarily for use by services run from the rootfs, e.g. ueventd, adbd.
-  Services on the system partition can instead use policy-defined transitions
-  based on their file security context.
-  If not specified and no transition is defined in policy, defaults to the init context.
-
-`oneshot`
-> Do not restart the service when it exits.
-
-`class <name> [ <name>\* ]`
-> Specify class names for the service.  All services in a
-  named class may be started or stopped together.  A service
-  is in the class "default" if one is not specified via the
-  class option. Additional classnames beyond the (required) first
-  one are used to group services.
-`animation class`
-> 'animation' class should include all services necessary for both
-  boot animation and shutdown animation. As these services can be
-  launched very early during bootup and can run until the last stage
-  of shutdown, access to /data partition is not guaranteed. These
-  services can check files under /data but it should not keep files opened
-  and should work when /data is not available.
-
-`onrestart`
-> Execute a Command (see below) when service restarts.
-
 `writepid <file> [ <file>\* ]`
 > Write the child's pid to the given files when it forks. Meant for
   cgroup/cpuset usage. If no files under /dev/cpuset/ are specified, but the
   system property 'ro.cpuset.default' is set to a non-empty cpuset name (e.g.
   '/foreground'), then the pid is written to file /dev/cpuset/_cpuset\_name_/tasks.
 
-`priority <priority>`
-> Scheduling priority of the service process. This value has to be in range
-  -20 to 19. Default priority is 0. Priority is set via setpriority().
-
-`namespace <pid|mnt>`
-> Enter a new PID or mount namespace when forking the service.
-
-`oom_score_adjust <value>`
-> Sets the child's /proc/self/oom\_score\_adj to the specified value,
-  which must range from -1000 to 1000.
-
-`memcg.swappiness <value>`
-> Sets the child's memory.swappiness to the specified value (only if memcg is mounted),
-  which must be equal or greater than 0.
-
-`memcg.soft_limit_in_bytes <value>`
-> Sets the child's memory.soft_limit_in_bytes to the specified value (only if memcg is mounted),
-  which must be equal or greater than 0.
-
-`memcg.limit_in_bytes <value>`
-> Sets the child's memory.limit_in_bytes to the specified value (only if memcg is mounted),
-  which must be equal or greater than 0.
-
-`shutdown <shutdown_behavior>`
-> Set shutdown behavior of the service process. When this is not specified,
-  the service is killed during shutdown process by using SIGTERM and SIGKILL.
-  The service with shutdown_behavior of "critical" is not killed during shutdown
-  until shutdown times out. When shutdown times out, even services tagged with
-  "shutdown critical" will be killed. When the service tagged with "shutdown critical"
-  is not running when shut down starts, it will be started.
-
 
 Triggers
 --------
diff --git a/init/reboot.cpp b/init/reboot.cpp
index 03ed55a..6f6e39f 100644
--- a/init/reboot.cpp
+++ b/init/reboot.cpp
@@ -20,7 +20,6 @@
 #include <fcntl.h>
 #include <linux/fs.h>
 #include <mntent.h>
-#include <semaphore.h>
 #include <sys/capability.h>
 #include <sys/cdefs.h>
 #include <sys/ioctl.h>
@@ -330,9 +329,39 @@
     return stat;
 }
 
-void RebootThread(unsigned int cmd, std::chrono::milliseconds shutdown_timeout, bool runFsck,
-                  sem_t* reboot_semaphore) {
+void DoReboot(unsigned int cmd, const std::string& reason, const std::string& rebootTarget,
+              bool runFsck) {
     Timer t;
+    LOG(INFO) << "Reboot start, reason: " << reason << ", rebootTarget: " << rebootTarget;
+
+    // Ensure last reboot reason is reduced to canonical
+    // alias reported in bootloader or system boot reason.
+    size_t skip = 0;
+    std::vector<std::string> reasons = Split(reason, ",");
+    if (reasons.size() >= 2 && reasons[0] == "reboot" &&
+        (reasons[1] == "recovery" || reasons[1] == "bootloader" || reasons[1] == "cold" ||
+         reasons[1] == "hard" || reasons[1] == "warm")) {
+        skip = strlen("reboot,");
+    }
+    property_set(LAST_REBOOT_REASON_PROPERTY, reason.c_str() + skip);
+    sync();
+
+    bool is_thermal_shutdown = cmd == ANDROID_RB_THERMOFF;
+
+    auto shutdown_timeout = 0ms;
+    if (!SHUTDOWN_ZERO_TIMEOUT) {
+        if (is_thermal_shutdown) {
+            constexpr unsigned int thermal_shutdown_timeout = 1;
+            shutdown_timeout = std::chrono::seconds(thermal_shutdown_timeout);
+        } else {
+            constexpr unsigned int shutdown_timeout_default = 6;
+            auto shutdown_timeout_property = android::base::GetUintProperty(
+                "ro.build.shutdown_timeout", shutdown_timeout_default);
+            shutdown_timeout = std::chrono::seconds(shutdown_timeout_property);
+        }
+    }
+    LOG(INFO) << "Shutdown timeout: " << shutdown_timeout.count() << " ms";
+
     // keep debugging tools until non critical ones are all gone.
     const std::set<std::string> kill_after_apps{"tombstoned", "logd", "adbd"};
     // watchdogd is a vendor specific component but should be alive to complete shutdown safely.
@@ -356,7 +385,7 @@
     }
 
     // remaining operations (specifically fsck) may take a substantial duration
-    if (cmd == ANDROID_RB_POWEROFF || cmd == ANDROID_RB_THERMOFF) {
+    if (cmd == ANDROID_RB_POWEROFF || is_thermal_shutdown) {
         TurnOffBacklight();
     }
 
@@ -429,81 +458,22 @@
         if (kill_after_apps.count(s->name())) s->Stop();
     }
     // 4. sync, try umount, and optionally run fsck for user shutdown
-    sync();
+    {
+        Timer sync_timer;
+        LOG(INFO) << "sync() before umount...";
+        sync();
+        LOG(INFO) << "sync() before umount took" << sync_timer;
+    }
     UmountStat stat = TryUmountAndFsck(runFsck, shutdown_timeout - t.duration());
     // Follow what linux shutdown is doing: one more sync with little bit delay
-    sync();
-    if (cmd != ANDROID_RB_THERMOFF) std::this_thread::sleep_for(100ms);
+    {
+        Timer sync_timer;
+        LOG(INFO) << "sync() after umount...";
+        sync();
+        LOG(INFO) << "sync() after umount took" << sync_timer;
+    }
+    if (!is_thermal_shutdown) std::this_thread::sleep_for(100ms);
     LogShutdownTime(stat, &t);
-
-    if (reboot_semaphore != nullptr) {
-        sem_post(reboot_semaphore);
-    }
-}
-
-void RunRebootThread(unsigned int cmd, std::chrono::milliseconds shutdown_timeout) {
-    sem_t reboot_semaphore;
-    timespec shutdown_timeout_timespec;
-
-    if (sem_init(&reboot_semaphore, false, 0) == -1 ||
-        clock_gettime(CLOCK_REALTIME, &shutdown_timeout_timespec) == -1) {
-        // These should never fail, but if they do, skip the graceful reboot and reboot immediately.
-        return;
-    }
-
-    std::thread reboot_thread(&RebootThread, cmd, shutdown_timeout, false, &reboot_semaphore);
-    reboot_thread.detach();
-
-    // One extra second than the timeout passed to the thread as there is a final Umount pass
-    // after the timeout is reached.
-    shutdown_timeout_timespec.tv_sec += 1 + shutdown_timeout.count() / 1000;
-
-    int sem_return = 0;
-    while ((sem_return = sem_timedwait(&reboot_semaphore, &shutdown_timeout_timespec)) == -1 &&
-           errno == EINTR) {
-    }
-
-    if (sem_return == -1) {
-        LOG(ERROR) << "Reboot thread timed out";
-    }
-}
-
-void DoReboot(unsigned int cmd, const std::string& reason, const std::string& rebootTarget,
-              bool runFsck) {
-    LOG(INFO) << "Reboot start, reason: " << reason << ", rebootTarget: " << rebootTarget;
-
-    // Ensure last reboot reason is reduced to canonical
-    // alias reported in bootloader or system boot reason.
-    size_t skip = 0;
-    std::vector<std::string> reasons = Split(reason, ",");
-    if (reasons.size() >= 2 && reasons[0] == "reboot" &&
-        (reasons[1] == "recovery" || reasons[1] == "bootloader" || reasons[1] == "cold" ||
-         reasons[1] == "hard" || reasons[1] == "warm")) {
-        skip = strlen("reboot,");
-    }
-    property_set(LAST_REBOOT_REASON_PROPERTY, reason.c_str() + skip);
-    sync();
-
-    auto shutdown_timeout = 0ms;
-    if (!SHUTDOWN_ZERO_TIMEOUT) {
-        if (cmd == ANDROID_RB_THERMOFF) {
-            constexpr auto kThermalShutdownTimeout = 1s;
-            shutdown_timeout = kThermalShutdownTimeout;
-        } else {
-            constexpr unsigned int kShutdownTimeoutDefault = 6;
-            auto shutdown_timeout_property = android::base::GetUintProperty(
-                "ro.build.shutdown_timeout", kShutdownTimeoutDefault);
-            shutdown_timeout = std::chrono::seconds(shutdown_timeout_property);
-        }
-    }
-    LOG(INFO) << "Shutdown timeout: " << shutdown_timeout.count() << " ms";
-
-    if (runFsck) {
-        RebootThread(cmd, shutdown_timeout, true, nullptr);
-    } else {
-        RunRebootThread(cmd, shutdown_timeout);
-    }
-
     // Reboot regardless of umount status. If umount fails, fsck after reboot will fix it.
     RebootSystem(cmd, rebootTarget);
     abort();
diff --git a/init/service.cpp b/init/service.cpp
index 8130e73..694e5e7 100644
--- a/init/service.cpp
+++ b/init/service.cpp
@@ -446,8 +446,8 @@
     const std::string& interface_name = args[1];
     const std::string& instance_name = args[2];
 
-    const FQName fq_name = FQName(interface_name);
-    if (!fq_name.isValid()) {
+    FQName fq_name;
+    if (!FQName::parse(interface_name, &fq_name)) {
         return Error() << "Invalid fully-qualified name for interface '" << interface_name << "'";
     }
 
@@ -678,29 +678,29 @@
         {"console",     {0,     1,    &Service::ParseConsole}},
         {"critical",    {0,     0,    &Service::ParseCritical}},
         {"disabled",    {0,     0,    &Service::ParseDisabled}},
+        {"file",        {2,     2,    &Service::ParseFile}},
         {"group",       {1,     NR_SVC_SUPP_GIDS + 1, &Service::ParseGroup}},
         {"interface",   {2,     2,    &Service::ParseInterface}},
         {"ioprio",      {2,     2,    &Service::ParseIoprio}},
-        {"priority",    {1,     1,    &Service::ParsePriority}},
         {"keycodes",    {1,     kMax, &Service::ParseKeycodes}},
-        {"oneshot",     {0,     0,    &Service::ParseOneshot}},
-        {"onrestart",   {1,     kMax, &Service::ParseOnrestart}},
-        {"override",    {0,     0,    &Service::ParseOverride}},
-        {"oom_score_adjust",
-                        {1,     1,    &Service::ParseOomScoreAdjust}},
-        {"memcg.swappiness",
-                        {1,     1,    &Service::ParseMemcgSwappiness}},
-        {"memcg.soft_limit_in_bytes",
-                        {1,     1,    &Service::ParseMemcgSoftLimitInBytes}},
         {"memcg.limit_in_bytes",
                         {1,     1,    &Service::ParseMemcgLimitInBytes}},
+        {"memcg.soft_limit_in_bytes",
+                        {1,     1,    &Service::ParseMemcgSoftLimitInBytes}},
+        {"memcg.swappiness",
+                        {1,     1,    &Service::ParseMemcgSwappiness}},
         {"namespace",   {1,     2,    &Service::ParseNamespace}},
+        {"oneshot",     {0,     0,    &Service::ParseOneshot}},
+        {"onrestart",   {1,     kMax, &Service::ParseOnrestart}},
+        {"oom_score_adjust",
+                        {1,     1,    &Service::ParseOomScoreAdjust}},
+        {"override",    {0,     0,    &Service::ParseOverride}},
+        {"priority",    {1,     1,    &Service::ParsePriority}},
         {"rlimit",      {3,     3,    &Service::ParseProcessRlimit}},
         {"seclabel",    {1,     1,    &Service::ParseSeclabel}},
         {"setenv",      {2,     2,    &Service::ParseSetenv}},
         {"shutdown",    {1,     1,    &Service::ParseShutdown}},
         {"socket",      {3,     6,    &Service::ParseSocket}},
-        {"file",        {2,     2,    &Service::ParseFile}},
         {"user",        {1,     1,    &Service::ParseUser}},
         {"writepid",    {1,     kMax, &Service::ParseWritepid}},
     };
diff --git a/libasyncio/AsyncIO.cpp b/libasyncio/AsyncIO.cpp
index 7430bc8..6149f09 100644
--- a/libasyncio/AsyncIO.cpp
+++ b/libasyncio/AsyncIO.cpp
@@ -17,9 +17,10 @@
 #include <asyncio/AsyncIO.h>
 #include <sys/syscall.h>
 #include <unistd.h>
+#include <cstdint>
+#include <cstring>
 
 int io_setup(unsigned nr, aio_context_t* ctxp) {
-    memset(ctxp, 0, sizeof(*ctxp));
     return syscall(__NR_io_setup, nr, ctxp);
 }
 
@@ -48,3 +49,11 @@
     iocb->aio_nbytes = count;
     iocb->aio_offset = offset;
 }
+
+void io_prep_pread(struct iocb* iocb, int fd, void* buf, size_t count, long long offset) {
+    io_prep(iocb, fd, buf, count, offset, true);
+}
+
+void io_prep_pwrite(struct iocb* iocb, int fd, void* buf, size_t count, long long offset) {
+    io_prep(iocb, fd, buf, count, offset, false);
+}
diff --git a/libasyncio/include/asyncio/AsyncIO.h b/libasyncio/include/asyncio/AsyncIO.h
index e3fb93a..9620d2a 100644
--- a/libasyncio/include/asyncio/AsyncIO.h
+++ b/libasyncio/include/asyncio/AsyncIO.h
@@ -17,9 +17,9 @@
 #ifndef _ASYNCIO_H
 #define _ASYNCIO_H
 
-#include <cstring>
-#include <cstdint>
 #include <linux/aio_abi.h>
+#include <stdbool.h>
+#include <stdint.h>
 #include <sys/cdefs.h>
 #include <sys/types.h>
 #include <time.h>
@@ -35,10 +35,14 @@
 
 int io_setup(unsigned nr, aio_context_t* ctxp);
 int io_destroy(aio_context_t ctx);
-int io_submit(aio_context_t ctx, long nr, iocb** iocbpp);
-int io_getevents(aio_context_t ctx, long min_nr, long max_nr, io_event* events, timespec* timeout);
-int io_cancel(aio_context_t ctx, iocb*, io_event* result);
-void io_prep(iocb* iocb, int fd, const void* buf, uint64_t count, int64_t offset, bool read);
+int io_submit(aio_context_t ctx, long nr, struct iocb** iocbpp);
+int io_getevents(aio_context_t ctx, long min_nr, long max_nr, struct io_event* events,
+                 struct timespec* timeout);
+int io_cancel(aio_context_t ctx, struct iocb*, struct io_event* result);
+
+void io_prep_pread(struct iocb* iocb, int fd, void* buf, size_t count, long long offset);
+void io_prep_pwrite(struct iocb* iocb, int fd, void* buf, size_t count, long long offset);
+void io_prep(struct iocb* iocb, int fd, const void* buf, uint64_t count, int64_t offset, bool read);
 
 #ifdef __cplusplus
 };
diff --git a/libion/ion.c b/libion/ion.c
index 5836128..b8de5a4 100644
--- a/libion/ion.c
+++ b/libion/ion.c
@@ -55,7 +55,7 @@
 
 int ion_open() {
     int fd = open("/dev/ion", O_RDONLY | O_CLOEXEC);
-    if (fd < 0) ALOGE("open /dev/ion failed!\n");
+    if (fd < 0) ALOGE("open /dev/ion failed: %s", strerror(errno));
 
     return fd;
 }
@@ -69,7 +69,7 @@
 static int ion_ioctl(int fd, int req, void* arg) {
     int ret = ioctl(fd, req, arg);
     if (ret < 0) {
-        ALOGE("ioctl %x failed with code %d: %s\n", req, ret, strerror(errno));
+        ALOGE("ioctl %x failed with code %d: %s", req, ret, strerror(errno));
         return -errno;
     }
     return ret;
@@ -115,12 +115,12 @@
     ret = ion_ioctl(fd, ION_IOC_MAP, &data);
     if (ret < 0) return ret;
     if (data.fd < 0) {
-        ALOGE("map ioctl returned negative fd\n");
+        ALOGE("map ioctl returned negative fd");
         return -EINVAL;
     }
     tmp_ptr = mmap(NULL, length, prot, flags, data.fd, offset);
     if (tmp_ptr == MAP_FAILED) {
-        ALOGE("mmap failed: %s\n", strerror(errno));
+        ALOGE("mmap failed: %s", strerror(errno));
         return -errno;
     }
     *map_fd = data.fd;
@@ -140,7 +140,7 @@
     ret = ion_ioctl(fd, ION_IOC_SHARE, &data);
     if (ret < 0) return ret;
     if (data.fd < 0) {
-        ALOGE("share ioctl returned negative fd\n");
+        ALOGE("share ioctl returned negative fd");
         return -EINVAL;
     }
     *share_fd = data.fd;
diff --git a/libmemunreachable/Android.bp b/libmemunreachable/Android.bp
index caca377..f872d0f 100644
--- a/libmemunreachable/Android.bp
+++ b/libmemunreachable/Android.bp
@@ -88,7 +88,6 @@
 cc_test {
     name: "memunreachable_binder_test",
     defaults: ["libmemunreachable_defaults"],
-    test_suites: ["vts"],
     srcs: [
         "tests/Binder_test.cpp",
     ],
diff --git a/libunwindstack/Android.bp b/libunwindstack/Android.bp
index ab01726..08dcf77 100644
--- a/libunwindstack/Android.bp
+++ b/libunwindstack/Android.bp
@@ -47,6 +47,8 @@
 
     srcs: [
         "ArmExidx.cpp",
+        "DexFile.cpp",
+        "DexFiles.cpp",
         "DwarfCfa.cpp",
         "DwarfEhFrameWithHdr.cpp",
         "DwarfMemory.cpp",
@@ -85,11 +87,13 @@
         },
         vendor: {
             cflags: ["-DNO_LIBDEXFILE_SUPPORT"],
-            exclude_static_libs: ["libunwindstack_dex"],
+            exclude_srcs: [
+                "DexFile.cpp",
+                "DexFiles.cpp",
+            ],
             exclude_shared_libs: ["libdexfile"],
         },
     },
-    whole_static_libs: ["libunwindstack_dex"],
 
     arch: {
         x86: {
@@ -114,79 +118,9 @@
     ],
 }
 
-// Isolate the dex file processing into a separate library. Currently,
-// it is necessary to add art include directories directly, which also
-// adds the art elf.h file in the include path, overriding the system one.
-// Work to isolate libdexfile is b/72216369.
-cc_library_static {
-    name: "libunwindstack_dex",
-    vendor_available: false,
-    defaults: ["libunwindstack_flags"],
-
-    cflags: [
-        "-Wexit-time-destructors",
-    ],
-
-    srcs: [
-        "DexFile.cpp",
-        "DexFiles.cpp",
-    ],
-    target: {
-        // Always disable optimizations for host to make it easier to debug.
-        host: {
-            cflags: [
-                "-O0",
-                "-g",
-            ],
-        },
-    },
-
-    shared_libs: [
-        "libbase",
-        "libdexfile",
-    ],
-    local_include_dirs: ["include"],
-    allow_undefined_symbols: true,
-
-    // libdexfile will eventually properly export headers, for now include
-    // these directly.
-    include_dirs: [
-        "art/runtime",
-    ],
-}
-
 //-------------------------------------------------------------------------
 // Unit Tests
 //-------------------------------------------------------------------------
-cc_test_library {
-    name: "libunwindstack_dex_test",
-    vendor_available: false,
-    defaults: ["libunwindstack_flags"],
-
-    shared: {
-        enabled: false,
-    },
-
-    srcs: [
-        "tests/DexFileTest.cpp",
-        "tests/DexFilesTest.cpp",
-    ],
-    local_include_dirs: ["include"],
-    allow_undefined_symbols: true,
-
-    shared_libs: [
-        "libbase",
-        "libunwindstack",
-        "libdexfile",
-    ],
-
-    // libdexfile will eventually properly export headers, for now include
-    // these directly.
-    include_dirs: [
-        "art/runtime",
-    ],
-}
-
 cc_test {
     name: "libunwindstack_test",
     defaults: ["libunwindstack_flags"],
@@ -194,6 +128,8 @@
     srcs: [
         "tests/ArmExidxDecodeTest.cpp",
         "tests/ArmExidxExtractTest.cpp",
+        "tests/DexFileTest.cpp",
+        "tests/DexFilesTest.cpp",
         "tests/DwarfCfaLogTest.cpp",
         "tests/DwarfCfaTest.cpp",
         "tests/DwarfDebugFrameTest.cpp",
@@ -242,14 +178,13 @@
         "liblog",
         "liblzma",
         "libunwindstack",
+        "libdexfile",
     ],
 
     static_libs: [
         "libgmock",
     ],
 
-    whole_static_libs: ["libunwindstack_dex_test"],
-
     data: [
         "tests/files/elf32.xz",
         "tests/files/elf64.xz",
diff --git a/libunwindstack/Unwinder.cpp b/libunwindstack/Unwinder.cpp
index 94edb1c..27262bd 100644
--- a/libunwindstack/Unwinder.cpp
+++ b/libunwindstack/Unwinder.cpp
@@ -61,7 +61,9 @@
     frame->map_offset = info->offset;
     frame->map_load_bias = info->load_bias;
     frame->map_flags = info->flags;
-    frame->map_name = info->name;
+    if (resolve_names_) {
+      frame->map_name = info->name;
+    }
     frame->rel_pc = dex_pc - info->start;
   } else {
     frame->rel_pc = dex_pc;
@@ -96,7 +98,9 @@
     return;
   }
 
-  frame->map_name = map_info->name;
+  if (resolve_names_) {
+    frame->map_name = map_info->name;
+  }
   frame->map_offset = map_info->offset;
   frame->map_start = map_info->start;
   frame->map_end = map_info->end;
diff --git a/libunwindstack/tests/UnwinderTest.cpp b/libunwindstack/tests/UnwinderTest.cpp
index b38fb5f..2428f68 100644
--- a/libunwindstack/tests/UnwinderTest.cpp
+++ b/libunwindstack/tests/UnwinderTest.cpp
@@ -221,7 +221,7 @@
   EXPECT_EQ(0x10000U, frame->sp);
   EXPECT_EQ("", frame->function_name);
   EXPECT_EQ(0U, frame->function_offset);
-  EXPECT_EQ("/system/fake/libc.so", frame->map_name);
+  EXPECT_EQ("", frame->map_name);
   EXPECT_EQ(0U, frame->map_offset);
   EXPECT_EQ(0x1000U, frame->map_start);
   EXPECT_EQ(0x8000U, frame->map_end);
@@ -235,7 +235,7 @@
   EXPECT_EQ(0x10010U, frame->sp);
   EXPECT_EQ("", frame->function_name);
   EXPECT_EQ(0U, frame->function_offset);
-  EXPECT_EQ("/system/fake/libc.so", frame->map_name);
+  EXPECT_EQ("", frame->map_name);
   EXPECT_EQ(0U, frame->map_offset);
   EXPECT_EQ(0x1000U, frame->map_start);
   EXPECT_EQ(0x8000U, frame->map_end);
@@ -249,7 +249,7 @@
   EXPECT_EQ(0x10020U, frame->sp);
   EXPECT_EQ("", frame->function_name);
   EXPECT_EQ(0U, frame->function_offset);
-  EXPECT_EQ("/system/fake/libc.so", frame->map_name);
+  EXPECT_EQ("", frame->map_name);
   EXPECT_EQ(0U, frame->map_offset);
   EXPECT_EQ(0x1000U, frame->map_start);
   EXPECT_EQ(0x8000U, frame->map_end);
diff --git a/libutils/Android.bp b/libutils/Android.bp
index a4fc4b4..0d7925a 100644
--- a/libutils/Android.bp
+++ b/libutils/Android.bp
@@ -129,7 +129,6 @@
         "PropertyMap.cpp",
         "RefBase.cpp",
         "SharedBuffer.cpp",
-        "Static.cpp",
         "StopWatch.cpp",
         "String8.cpp",
         "String16.cpp",
diff --git a/libutils/Static.cpp b/libutils/Static.cpp
deleted file mode 100644
index 3ed07a1..0000000
--- a/libutils/Static.cpp
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
- * Copyright (C) 2008 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.
- */
-
-// All static variables go here, to control initialization and
-// destruction order in the library.
-
-namespace android {
-
-// For String8.cpp
-extern void initialize_string8();
-extern void terminate_string8();
-
-// For String16.cpp
-extern void initialize_string16();
-extern void terminate_string16();
-
-class LibUtilsFirstStatics
-{
-public:
-    LibUtilsFirstStatics()
-    {
-        initialize_string8();
-        initialize_string16();
-    }
-    
-    ~LibUtilsFirstStatics()
-    {
-        terminate_string16();
-        terminate_string8();
-    }
-};
-
-static LibUtilsFirstStatics gFirstStatics;
-int gDarwinCantLoadAllObjects = 1;
-
-}   // namespace android
diff --git a/libutils/String16.cpp b/libutils/String16.cpp
index e8f1c51..230e970 100644
--- a/libutils/String16.cpp
+++ b/libutils/String16.cpp
@@ -24,29 +24,16 @@
 
 namespace android {
 
-static SharedBuffer* gEmptyStringBuf = NULL;
-static char16_t* gEmptyString = NULL;
+static inline char16_t* getEmptyString() {
+    static SharedBuffer* gEmptyStringBuf = [] {
+        SharedBuffer* buf = SharedBuffer::alloc(sizeof(char16_t));
+        char16_t* str = static_cast<char16_t*>(buf->data());
+        *str = 0;
+        return buf;
+    }();
 
-static inline char16_t* getEmptyString()
-{
     gEmptyStringBuf->acquire();
-   return gEmptyString;
-}
-
-void initialize_string16()
-{
-    SharedBuffer* buf = SharedBuffer::alloc(sizeof(char16_t));
-    char16_t* str = (char16_t*)buf->data();
-    *str = 0;
-    gEmptyStringBuf = buf;
-    gEmptyString = str;
-}
-
-void terminate_string16()
-{
-    SharedBuffer::bufferFromData(gEmptyString)->release();
-    gEmptyStringBuf = NULL;
-    gEmptyString = NULL;
+    return static_cast<char16_t*>(gEmptyStringBuf->data());
 }
 
 // ---------------------------------------------------------------------------
diff --git a/libutils/String8.cpp b/libutils/String8.cpp
index ad0e72e..580e870 100644
--- a/libutils/String8.cpp
+++ b/libutils/String8.cpp
@@ -40,40 +40,16 @@
 // to OS_PATH_SEPARATOR.
 #define RES_PATH_SEPARATOR '/'
 
-static SharedBuffer* gEmptyStringBuf = NULL;
-static char* gEmptyString = NULL;
+static inline char* getEmptyString() {
+    static SharedBuffer* gEmptyStringBuf = [] {
+        SharedBuffer* buf = SharedBuffer::alloc(1);
+        char* str = static_cast<char*>(buf->data());
+        *str = 0;
+        return buf;
+    }();
 
-extern int gDarwinCantLoadAllObjects;
-int gDarwinIsReallyAnnoying;
-
-void initialize_string8();
-
-static inline char* getEmptyString()
-{
     gEmptyStringBuf->acquire();
-    return gEmptyString;
-}
-
-void initialize_string8()
-{
-    // HACK: This dummy dependency forces linking libutils Static.cpp,
-    // which is needed to initialize String8/String16 classes.
-    // These variables are named for Darwin, but are needed elsewhere too,
-    // including static linking on any platform.
-    gDarwinIsReallyAnnoying = gDarwinCantLoadAllObjects;
-
-    SharedBuffer* buf = SharedBuffer::alloc(1);
-    char* str = (char*)buf->data();
-    *str = 0;
-    gEmptyStringBuf = buf;
-    gEmptyString = str;
-}
-
-void terminate_string8()
-{
-    SharedBuffer::bufferFromData(gEmptyString)->release();
-    gEmptyStringBuf = NULL;
-    gEmptyString = NULL;
+    return static_cast<char*>(gEmptyStringBuf->data());
 }
 
 // ---------------------------------------------------------------------------
diff --git a/rootdir/etc/ld.config.legacy.txt b/rootdir/etc/ld.config.legacy.txt
index d55ec57..ca6aafe 100644
--- a/rootdir/etc/ld.config.legacy.txt
+++ b/rootdir/etc/ld.config.legacy.txt
@@ -10,6 +10,9 @@
 dir.legacy = /odm
 dir.legacy = /sbin
 
+# Except for /postinstall, where only /system is searched
+dir.postinstall = /postinstall
+
 [legacy]
 namespace.default.isolated = false
 
@@ -23,3 +26,15 @@
 namespace.default.asan.search.paths +=           /odm/${LIB}
 namespace.default.asan.search.paths += /data/asan/vendor/${LIB}
 namespace.default.asan.search.paths +=           /vendor/${LIB}
+
+###############################################################################
+# Namespace config for binaries under /postinstall.
+# Only one default namespace is defined and it has no directories other than
+# /system/lib in the search paths. This is because linker calls realpath on the
+# search paths and this causes selinux denial if the paths (/vendor, /odm) are
+# not allowed to the poinstall binaries. There is no reason to allow the
+# binaries to access the paths.
+###############################################################################
+[postinstall]
+namespace.default.isolated = false
+namespace.default.search.paths = /system/${LIB}
diff --git a/rootdir/etc/ld.config.txt b/rootdir/etc/ld.config.txt
index 6e46295..94465f4 100644
--- a/rootdir/etc/ld.config.txt
+++ b/rootdir/etc/ld.config.txt
@@ -24,6 +24,8 @@
 dir.system = /data/benchmarktest
 dir.system = /data/benchmarktest64
 
+dir.postinstall = /postinstall
+
 [system]
 additional.namespaces = sphal,vndk,rs
 
@@ -315,3 +317,15 @@
 
 namespace.system.asan.search.paths  = /data/asan/system/${LIB}
 namespace.system.asan.search.paths +=           /system/${LIB}
+
+###############################################################################
+# Namespace config for binaries under /postinstall.
+# Only one default namespace is defined and it has no directories other than
+# /system/lib in the search paths. This is because linker calls realpath on the
+# search paths and this causes selinux denial if the paths (/vendor, /odm) are
+# not allowed to the poinstall binaries. There is no reason to allow the
+# binaries to access the paths.
+###############################################################################
+[postinstall]
+namespace.default.isolated = false
+namespace.default.search.paths = /system/${LIB}
diff --git a/rootdir/etc/ld.config.vndk_lite.txt b/rootdir/etc/ld.config.vndk_lite.txt
index 5256cb1..1fd4195 100644
--- a/rootdir/etc/ld.config.vndk_lite.txt
+++ b/rootdir/etc/ld.config.vndk_lite.txt
@@ -24,6 +24,8 @@
 dir.system = /data/benchmarktest
 dir.system = /data/benchmarktest64
 
+dir.postinstall = /postinstall
+
 [system]
 additional.namespaces = sphal,vndk,rs
 
@@ -222,3 +224,15 @@
 namespace.default.asan.search.paths +=           /system/${LIB}/vndk-sp%VNDK_VER%
 namespace.default.asan.search.paths += /data/asan/system/${LIB}
 namespace.default.asan.search.paths +=           /system/${LIB}
+
+###############################################################################
+# Namespace config for binaries under /postinstall.
+# Only one default namespace is defined and it has no directories other than
+# /system/lib in the search paths. This is because linker calls realpath on the
+# search paths and this causes selinux denial if the paths (/vendor, /odm) are
+# not allowed to the poinstall binaries. There is no reason to allow the
+# binaries to access the paths.
+###############################################################################
+[postinstall]
+namespace.default.isolated = false
+namespace.default.search.paths = /system/${LIB}