Collect samples during isolate startup

runtime/vm/dart.cc

 // Copyright (c) 2013, 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/dart.h"
 
 #include "vm/code_observers.h"
 #include "vm/cpu.h"
 #include "vm/dart_api_state.h"
 #include "vm/dart_entry.h"
@@ skipping 199 matching lines @@
   TIMERSCOPE(isolate, time_isolate_initialization);
   ASSERT(isolate != NULL);
   StackZone zone(isolate);
   HandleScope handle_scope(isolate);
   Heap::Init(isolate,
              FLAG_new_gen_heap_size * MBInWords,
              FLAG_old_gen_heap_size * MBInWords);
   ObjectIdRing::Init(isolate);
   ObjectStore::Init(isolate);
 
+  // Setup for profiling.
+  Profiler::InitProfilingForIsolate(isolate);
+
   if (snapshot_buffer == NULL) {
     const Error& error = Error::Handle(Object::Init(isolate));
     if (!error.IsNull()) {
       return error.raw();
     }
   } else {
     // Initialize from snapshot (this should replicate the functionality
     // of Object::Init(..) in a regular isolate creation path.
     Object::InitFromSnapshot(isolate);
 
@@ skipping 22 matching lines @@
   }
   isolate->megamorphic_cache_table()->InitMissHandler();
 
   isolate->heap()->EnableGrowthControl();
   isolate->set_init_callback_data(data);
   Api::SetupAcquiredError(isolate);
   if (FLAG_print_class_table) {
     isolate->class_table()->Print();
   }
 
-  // Setup for profiling.
-  Profiler::InitProfilingForIsolate(isolate);
 
   Service::SendIsolateStartupMessage();
   // Create tag table.
   isolate->set_tag_table(
       GrowableObjectArray::Handle(GrowableObjectArray::New()));
   return Error::null();
 }
 
 
 void Dart::RunShutdownCallback() {
@@ skipping 20 matching lines @@
   return predefined_handles_->handles_.AllocateScopedHandle();
 }
 
 
 bool Dart::IsReadOnlyHandle(uword address) {
   ASSERT(predefined_handles_ != NULL);
   return predefined_handles_->handles_.IsValidScopedHandle(address);
 }
 
 }  // namespace dart