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

1 files changed, 2 insertions, 1 deletions

diff --git a/compiler/jit/jit_compiler.h b/compiler/jit/jit_compiler.h
index ea2747c085..f0f24d345e 100644
--- a/compiler/jit/jit_compiler.h
+++ b/compiler/jit/jit_compiler.h
@@ -19,6 +19,7 @@
 
 #include "base/mutex.h"
 #include "compiled_method.h"
+#include "jit_logger.h"
 #include "driver/compiler_driver.h"
 #include "driver/compiler_options.h"
 
@@ -50,7 +51,7 @@ class JitCompiler {
   std::unique_ptr<CumulativeLogger> cumulative_logger_;
   std::unique_ptr<CompilerDriver> compiler_driver_;
   std::unique_ptr<const InstructionSetFeatures> instruction_set_features_;
-  std::unique_ptr<File> perf_file_;
+  std::unique_ptr<JitLogger> jit_logger_;
 
   JitCompiler();