Add a new API V8::SetJitCodeEventHandler to push code name and location to users such as profilers.

src/api.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 4245 matching lines @@
       ReturnAddressLocationResolver return_address_resolver) {
   i::V8::SetReturnAddressLocationResolver(return_address_resolver);
 }
 
 
 bool v8::V8::SetFunctionEntryHook(FunctionEntryHook entry_hook) {
   return i::ProfileEntryHookStub::SetFunctionEntryHook(entry_hook);
 }
 
 
+void v8::V8::SetJitCodeEventHandler(
+    JitCodeEventOptions options, JitCodeEventHandler event_handler) {
+  i::Isolate* isolate = i::Isolate::Current();
+  // Ensure that logging is initialized for our isolate.
+  isolate->InitializeLoggingAndCounters();
+  isolate->logger()->SetCodeEventHandler(options, event_handler);
+}
+
+
 bool v8::V8::Dispose() {
   i::Isolate* isolate = i::Isolate::Current();
   if (!ApiCheck(isolate != NULL && isolate->IsDefaultIsolate(),
                 "v8::V8::Dispose()",
                 "Use v8::Isolate::Dispose() for a non-default isolate.")) {
     return false;
   }
   i::V8::TearDown();
   return true;
 }
@@ skipping 2252 matching lines @@
 
   v->VisitPointers(blocks_.first(), first_block_limit_);
 
   for (int i = 1; i < blocks_.length(); i++) {
     v->VisitPointers(blocks_[i], &blocks_[i][kHandleBlockSize]);
   }
 }
 
 
 } }  // namespace v8::internal