tree 7d806c8b531b8e9f91c2d52b06ccbf16e10ac04e
parent 2f2533f686f759ccd29d2712da2c7610382fb59f
author xueliang.zhong <xueliang.zhong@linaro.org> 1475576357 +0100
committer xueliang.zhong <xueliang.zhong@linaro.org> 1477562958 +0100

ART jitted code profiling support.

- Generate perf map for method level profiling.
- Generate jit dump for instruction level profiling.

Command line example of perf map approach:
$ perf record dalvikvm -Xcompiler-option -g -cp <classpath> MyClass
$ perf report

Command line example of perf jit dump approach:
$ perf record -k mono dalvikvm -Xcompiler-option -g -cp <classpath> MyClass
$ perf inject -i perf.data -o perf.data.jitted
$ perf report -i perf.data.jitted
$ perf annotate -i perf.data.jitted
NOTE: 4.1 or newer kernel is needed for this jit dump analysis.

Test: Compile.
Test: Verified that perf-PID.map and jit-PID.dump files are only generated
      when running ART JIT with -g option. Tested on aosp_angler-userdebug
      and hikey-userdebug devices. The file formats are correct.

Change-Id: I1bd3ce280f953811d3dfcc27dc8e59b3e1f481aa