This patch is the propagation version of https://codereview.chromium.org/10824032 patch

src/full-codegen.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 289 matching lines @@
   }
   if (FLAG_trace_codegen) {
     PrintF("Full Compiler - ");
   }
   CodeGenerator::MakeCodePrologue(info);
   const int kInitialBufferSize = 4 * KB;
   MacroAssembler masm(info->isolate(), NULL, kInitialBufferSize);
 #ifdef ENABLE_GDB_JIT_INTERFACE
   masm.positions_recorder()->StartGDBJITLineInfoRecording();
 #endif
-
+  if (FLAG_jit_profile) {

[danno, 2012/12/20 16:27:20]

See comment in flags-definition.h

+    JITCodeLineInfo* lineinfo = masm.positions_recorder()->
+                                InitializeJITLineInfo();

[danno, 2012/12/20 16:27:20]

nit: indentation should be 4 chars. Better yet, break the line after the "=" and
the rest of the statement will be on the same line.

+    LOG_CODE_EVENT(isolate, CodeStartLinePosInfoRecordEvent(lineinfo));
+  }
   FullCodeGenerator cgen(&masm, info);
   cgen.Generate();
   if (cgen.HasStackOverflow()) {
     ASSERT(!isolate->has_pending_exception());
     return false;
   }
   unsigned table_offset = cgen.EmitStackCheckTable();
 
   Code::Flags flags = Code::ComputeFlags(Code::FUNCTION);
   Handle<Code> code = CodeGenerator::MakeCodeEpilogue(&masm, flags, info);
@@ skipping 16 matching lines @@
   CodeGenerator::PrintCode(code, info);
   info->SetCode(code);  // May be an empty handle.
 #ifdef ENABLE_GDB_JIT_INTERFACE
   if (FLAG_gdbjit && !code.is_null()) {
     GDBJITLineInfo* lineinfo =
         masm.positions_recorder()->DetachGDBJITLineInfo();
 
     GDBJIT(RegisterDetailedLineInfo(*code, lineinfo));
   }
 #endif
+  if (FLAG_jit_profile) {
+    if (!code.is_null()) {
+      void* lineinfo =  masm.positions_recorder()->DetachJITLineInfo();
+      LOG_CODE_EVENT(isolate, CodeEndLinePosInfoRecordEvent(*code, lineinfo));
+    }
+  }
   return !code.is_null();
 }
 
 
 unsigned FullCodeGenerator::EmitStackCheckTable() {
   // The stack check table consists of a length (in number of entries)
   // field, and then a sequence of entries.  Each entry is a pair of AST id
   // and code-relative pc offset.
   masm()->Align(kIntSize);
   unsigned offset = masm()->pc_offset();
@@ skipping 1220 matching lines @@
   }
 
   return false;
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal