Make state stack thread local. When using Lockers the state stacks of...

src/top.cc

 // Copyright 2006-2008 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 51 matching lines @@
   return TRY_CATCH_FROM_ADDRESS(try_catch_handler_address());
 }
 
 
 void ThreadLocalTop::Initialize() {
   c_entry_fp_ = 0;
   handler_ = 0;
 #ifdef ENABLE_LOGGING_AND_PROFILING
   js_entry_sp_ = 0;
 #endif
+#ifdef ENABLE_VMSTATE_TRACKING
+  current_vm_state_ = NULL;
+#endif
   try_catch_handler_address_ = NULL;
   context_ = NULL;
   int id = ThreadManager::CurrentId();
   thread_id_ = (id == 0) ? ThreadManager::kInvalidId : id;
   external_caught_exception_ = false;
   failed_access_check_callback_ = NULL;
   save_context_ = NULL;
   catcher_ = NULL;
 }
 
@@ skipping 958 matching lines @@
   Top::break_access_->Lock();
 }
 
 
 ExecutionAccess::~ExecutionAccess() {
   Top::break_access_->Unlock();
 }
 
 
 } }  // namespace v8::internal