Report code stubs to OProfile.

src/code-stubs.cc

Index: src/code-stubs.cc
diff --git a/src/code-stubs.cc b/src/code-stubs.cc
index 95f0760aec097c88aca4eae18e704c37d1c07f44..a65a1604fc7acb2c277b05caa69e17ec5b44a972 100644
--- a/src/code-stubs.cc
+++ b/src/code-stubs.cc
@@ -31,6 +31,7 @@
 #include "code-stubs.h"
 #include "factory.h"
 #include "macro-assembler.h"
+#include "oprofile-agent.h"
 
 namespace v8 {
 namespace internal {
@@ -63,6 +64,13 @@ void CodeStub::RecordCodeGeneration(Code* code, MacroAssembler* masm) {
   // Add unresolved entries in the code to the fixup list.
   Bootstrapper::AddFixup(code, masm);
 
+#ifdef ENABLE_OPROFILE_AGENT
+  // Register the generated stub with the OPROFILE agent.
+  OProfileAgent::CreateNativeCodeRegion(GetName(),
+                                        code->instruction_start(),
+                                        code->instruction_size());
+#endif
+
   LOG(CodeCreateEvent(Logger::STUB_TAG, code, GetName()));
   Counters::total_stubs_code_size.Increment(code->instruction_size());