Add compile timestamp to Code

runtime/vm/object.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/object.h"
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/assembler.h"
 #include "vm/cpu.h"
@@ skipping 10227 matching lines @@
   ASSERT(Object::code_class() != Class::null());
   Code& result = Code::Handle();
   {
     uword size = Code::InstanceSize(pointer_offsets_length);
     RawObject* raw = Object::Allocate(Code::kClassId, size, Heap::kOld);
     NoGCScope no_gc;
     result ^= raw;
     result.set_pointer_offsets_length(pointer_offsets_length);
     result.set_is_optimized(false);
     result.set_is_alive(false);
     result.set_comments(Comments::New(0));

[siva, 2014/03/11 20:32:08]

Should the timestamp be initialized to 0 here.

[Cutch, 2014/03/11 21:09:15]

Done.

     result.set_pc_descriptors(Object::empty_descriptors());
   }
   return result.raw();
 }
 
 
 RawCode* Code::FinalizeCode(const char* name,
                             Assembler* assembler,
                             bool optimized) {
   ASSERT(assembler != NULL);
 
   // Allocate the Code and Instructions objects.  Code is allocated first
   // because a GC during allocation of the code will leave the instruction
   // pages read-only.
   intptr_t pointer_offset_count = assembler->CountPointerOffsets();
   Code& code = Code::ZoneHandle(Code::New(pointer_offset_count));
   Instructions& instrs =
       Instructions::ZoneHandle(Instructions::New(assembler->CodeSize()));
 
   // Copy the instructions into the instruction area and apply all fixups.
   // Embedded pointers are still in handles at this point.
   MemoryRegion region(reinterpret_cast<void*>(instrs.EntryPoint()),
                       instrs.size());
   assembler->FinalizeInstructions(region);
   CPU::FlushICache(instrs.EntryPoint(), instrs.size());
 
+  code.set_compile_timestamp(OS::GetCurrentTimeMicros());
   CodeObservers::NotifyAll(name,
                            instrs.EntryPoint(),
                            assembler->prologue_offset(),
                            instrs.size(),
                            optimized);
 
   {
     NoGCScope no_gc;
     const ZoneGrowableArray<intptr_t>& pointer_offsets =
         assembler->GetPointerOffsets();
@@ skipping 7294 matching lines @@
   return "_MirrorReference";
 }
 
 
 void MirrorReference::PrintToJSONStream(JSONStream* stream, bool ref) const {
   Instance::PrintToJSONStream(stream, ref);
 }
 
 
 }  // namespace dart