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

src/compiler.cc

Index: src/compiler.cc
diff --git a/src/compiler.cc b/src/compiler.cc
index 998f1bcb20c2c554b23c4e0cd664f57f2949d915..ed847b1bdefb296daa496ffee101b4e6f2585d7a 100644
--- a/src/compiler.cc
+++ b/src/compiler.cc
@@ -30,11 +30,11 @@
 #include "compiler.h"
 
 #include "bootstrapper.h"
+#include "code-events.h"
 #include "codegen.h"
 #include "compilation-cache.h"
 #include "debug.h"
 #include "full-codegen.h"
-#include "gdb-jit.h"
 #include "hydrogen.h"
 #include "isolate-inl.h"
 #include "lithium.h"
@@ -493,10 +493,10 @@ static Handle<SharedFunctionInfo> MakeFunctionInfo(CompilationInfo* info) {
         *info->code(),
         *result,
         String::cast(script->name())));
-    GDBJIT(AddCode(Handle<String>(String::cast(script->name())),
-                   script,
-                   info->code(),
-                   info));
+    JIT_CODE_EVENT(AddCode(Handle<String>(String::cast(script->name())),

[danno, 2012/07/25 13:50:42]

I know this is beyond the scope of your change, but is there any way to unify
this with the PROFILE code events, since that seems to be a bottleneck for all
code creation? 

[Sigurður Ásgeirsson, 2012/07/25 14:38:35]

It really should be possible to do that, though that would probably require
changing or rewriting much of all three mechanisms. There's no question that
there would be maintenance benefits to this, but I don't feel it's something I
can justify taking on for my needs :(.

+                           script,
+                           info->code(),
+                           info));
   } else {
     PROFILE(isolate, CodeCreateEvent(
         info->is_eval()
@@ -505,7 +505,7 @@ static Handle<SharedFunctionInfo> MakeFunctionInfo(CompilationInfo* info) {
         *info->code(),
         *result,
         isolate->heap()->empty_string()));
-    GDBJIT(AddCode(Handle<String>(), script, info->code(), info));
+    JIT_CODE_EVENT(AddCode(Handle<String>(), script, info->code(), info));
   }
 
   // Hint to the runtime system used when allocating space for initial
@@ -1027,10 +1027,10 @@ void Compiler::RecordFunctionCompilation(Logger::LogEventsAndTags tag,
     }
   }
 
-  GDBJIT(AddCode(Handle<String>(shared->DebugName()),
-                 Handle<Script>(info->script()),
-                 Handle<Code>(info->code()),
-                 info));
+  JIT_CODE_EVENT(AddCode(Handle<String>(shared->DebugName()),
+                         Handle<Script>(info->script()),
+                         Handle<Code>(info->code()),
+                         info));
 }
 
 } }  // namespace v8::internal