commit 8d9989bb376f3937d9c8fef07c9cc65ef78cbcae
author Yao Chen <yaochen@google.com> Sat Nov 18 18:54:50 2017 -0800
committer Yao Chen <yaochen@google.com> Sat Nov 18 19:26:07 2017 -0800
tree 68e318840a296207746f8e2d5c43ebf04d76fa01
parent ae6a83a1cd729376fda3a849714b529f9666f4cb

The first step towards adding a guardrail.

Added a malloc debug cmd to find memory leak and where
the most heap allocations are with backtrace.

More info: malloc_debug/README.md

The util class is borrowed from audio server.

Usage:

adb shell stop
adb shell setprop libc.debug.malloc.program statsd
adb shell setprop libc.debug.malloc.options backtrace
adb shell start
adb shell cmd stats meminfo

Also,

adb shell dumpsys meminfo [statsd_pid]

also gives you the overall summary of the memory usage.

Test: manual

Change-Id: I4eb4167466a748ea0c3d9fd39e45d9900bc00fc2

cmds/statsd/Android.mk

diff --git a/cmds/statsd/Android.mk b/cmds/statsd/Android.mk
index d860363..c4b34ca 100644
--- a/cmds/statsd/Android.mk
+++ b/cmds/statsd/Android.mk
@@ -56,7 +56,8 @@
     src/storage/DropboxWriter.cpp \
     src/StatsLogProcessor.cpp \
     src/StatsService.cpp \
-    src/stats_util.cpp
+    src/stats_util.cpp \
+    src/guardrail/MemoryLeakTrackUtil.cpp
 
 statsd_common_c_includes := \
     $(LOCAL_PATH)/src \
@@ -83,7 +84,8 @@
     libhidltransport \
     libhwbinder \
     android.hardware.power@1.0 \
-    android.hardware.power@1.1
+    android.hardware.power@1.1 \
+    libmemunreachable
 
 # =========
 # statsd