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Earl Ou e4030384c4 libcutils: write trace event into socket in container 
When Android is running in a container, ftrace trace_marker may be
disabled, e.g. Chrome OS verified mode. To enable trace, a socket is
created for everyone to send trace event.

Modify libcutils so apps using it can write trace to the socket.

To achieve this goal without touching code for normal device,
trace-container.c is created for code specific to container. Shared
code between trace-dev.c and trace-container.c is moved to local
trace-dev.h.

Note that to avoid sharing FDs across different processes, Zygote closes
FD and reopen it to /dev/null if it is a socket. Therefore, we need to
manually close FD and reopen it again after forking. This is done in
the atrace_set_tracing_enabled as Zygote also use it to clear flags
during forking.

Related change:
- http://crrev.com/2400163003 (Chromium)
- http://ag/2028075 (Android system/core)
- http://ag/1738271 (Android device/google/cheets2)

Bug: 29776474, 62410809
Test: run chrome://tracing and see data from the host side.
Change-Id: I3fe969e284b972c28e4f32f23cd948aaea61a043
2017-08-03 15:16:44 +08:00
adb Fix reference to out of scope local in adb_thread_setname. 2017-08-02 20:34:06 +00:00
adf libadfhwc: Fix adf_hwc_close 2017-03-02 17:40:16 +00:00
base Merge "Revert "base: work around thread safety analysis bug."" 2017-08-02 23:10:42 +00:00
bootstat Merge "bootstat: Log even more boot reasons." 2017-07-26 19:27:03 +00:00
cpio Possible null pointer miss on realloc 2017-03-23 22:41:14 +01:00
debuggerd Stop asking for old versions of C++ in system/core. 2017-08-02 14:06:28 -07:00
demangle Mark libdemangle as vendor_available 2017-06-14 18:58:22 +09:00
fastboot fastboot: call mke2fs to format ext4 filesystem on windows 2017-08-01 00:19:56 +00:00
fingerprintd fingerprint: bump hw api version to 2.1 [DO NOT MERGE] 2017-01-27 22:11:15 +00:00
fs_mgr Merge "Allow the use of a custom Android DT directory" 2017-07-29 06:58:07 +00:00
gatekeeperd Stop asking for old versions of C++ in system/core. 2017-08-02 14:06:28 -07:00
healthd healthd: notify listeners using local copy of list, drop lock 2017-06-29 22:25:40 +00:00
include Merge "Move libnativebridge headers into the module." 2017-07-06 23:36:34 +00:00
init init: use unique_fd in builtins.cpp 2017-08-01 14:22:44 -07:00
libappfuse libappfuse: use an explicit buffer size 2017-08-02 14:11:25 -07:00
libbacktrace Merge "Revert "Add support for the new unwind method."" 2017-08-02 01:49:03 +00:00
libbinderwrapper libbinderwrapper: Android.mk -> Android.bp 2017-04-25 15:55:26 -07:00
libcrypto_utils Rely on the platform -std default. 2016-10-10 14:31:12 -07:00
libcutils libcutils: write trace event into socket in container 2017-08-03 15:16:44 +08:00
libdiskconfig Mark libdiskconfig vendor_available. 2017-05-24 14:21:48 -07:00
libion Remove LOCAL_CLANG and clang: true 2017-07-25 14:29:50 +02:00
libkeyutils Add libkeyutils. 2017-05-10 10:40:11 -07:00
liblog Fix misc-macro-parentheses warnings in system/core. 2017-08-01 22:12:57 +00:00
libmemtrack liblog: use log/log.h when utilizing ALOG macros 2017-01-11 09:31:15 -08:00
libmemunreachable Remove LOCAL_CLANG and clang: true 2017-07-25 14:29:50 +02:00
libmetricslogger Remove LOCAL_CLANG and clang: true 2017-07-25 14:29:50 +02:00
libnativebridge Remove LOCAL_CLANG and clang: true 2017-07-25 14:29:50 +02:00
libnativeloader Remove LOCAL_CLANG and clang: true 2017-07-25 14:29:50 +02:00
libnetutils Mark libnetutils vendor_available. 2017-05-24 14:18:35 -07:00
libpackagelistparser Remove LOCAL_CLANG and clang: true 2017-07-25 14:29:50 +02:00
libpixelflinger Va_end should be used with va_start 2017-03-23 22:41:42 +01:00
libprocessgroup Add memcg related configs to init. 2017-07-18 15:58:40 -07:00
libprocinfo libprocinfo: add support for parsing process state. 2017-06-27 15:06:27 -07:00
libsparse libsparse: Fix odd-sized input files total_blks 2017-04-19 10:32:45 -05:00
libsuspend Mark libsuspend vendor_available. 2017-05-24 14:44:30 -07:00
libsync Remove LOCAL_CLANG and clang: true 2017-07-25 14:29:50 +02:00
libsystem libutils: export system_headers 2017-04-28 09:42:50 +09:00
libsysutils Remove old LOG_EVENT_* code from libsysutils 2017-07-11 15:14:26 -07:00
libunwindstack Allow mips to build. 2017-08-02 10:45:46 -07:00
libusbhost Convert libusbhost to Android.bp 2017-04-20 08:37:12 -07:00
libutils Merge "Remove TODOs for std::string removal." 2017-08-02 20:35:45 +00:00
libziparchive libziparchive: Use ReadAtOffset exclusively 2017-07-25 18:12:12 +00:00
lmkd lmkd: Android.mk -> Android.bp 2017-04-28 15:20:18 -07:00
logcat Fix misc-macro-parentheses warnings in system/core. 2017-08-01 22:12:57 +00:00
logd Merge "logd + liblogd to Android.bp" 2017-06-30 19:32:41 +00:00
logwrapper Merge "logwrapper: add a benchmark for android_fork_execvp_ext" 2017-03-23 11:56:10 +00:00
mkbootimg mkbootimg: use int for os_version and os_patch_level 2016-03-29 16:06:37 -07:00
reboot Convert more Android.mk files to Android.bp 2016-07-13 17:41:45 -07:00
rootdir Merge "Add comments to "public.libraries.*.txt"." 2017-08-02 19:34:26 +00:00
run-as Define range of GIDs for cached app data. 2016-12-13 13:28:08 -07:00
sdcard Remove LOCAL_CLANG and clang: true 2017-07-25 14:29:50 +02:00
shell_and_utilities Remove reference to deleted gzip module 2017-07-06 22:33:22 +00:00
toolbox Merge "Add building and installing of grep for vendor." 2017-06-16 23:24:32 +00:00
trusty Stop asking for old versions of C++ in system/core. 2017-08-02 14:06:28 -07:00
.clang-format Add a 2 width option of clang format. 2017-03-10 13:01:39 -08:00
.clang-format-2 Only allow short functions in class definitions. 2017-03-28 12:31:37 -07:00
.clang-format-4 Only allow short functions in class definitions. 2017-03-28 12:31:37 -07:00
.gitignore Ignore adb/*.pyc files 2015-08-11 12:59:58 -07:00
Android.bp Export android_filesystem_config.h as a filegroup 2017-01-17 18:20:28 -08:00
Android.mk Remove the simulator target from all makefiles. 2011-07-11 22:12:32 -07:00
CleanSpec.mk init.rc: have hwservicemanager start the HAL class 2016-09-26 00:23:51 -07:00
MODULE_LICENSE_APACHE2 auto import from //depot/cupcake/@135843 2013-07-30 13:56:49 -07:00
NOTICE Fix omission in NOTICE file. 2013-07-30 13:56:55 -07:00
platform_tools_tool_version.mk Fix warning on the build servers 2017-05-25 12:35:40 -07:00
PREUPLOAD.cfg Add a PREUPLOAD.cfg file to run git-clang-format on every commit 2017-03-08 16:51:26 +08:00