Initial patch for a64.

src/isolate.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 98 matching lines @@
   has_pending_message_ = false;
   pending_message_obj_ = NULL;
   pending_message_script_ = NULL;
   scheduled_exception_ = NULL;
 }
 
 
 void ThreadLocalTop::Initialize() {
   InitializeInternal();
 #ifdef USE_SIMULATOR
-#ifdef V8_TARGET_ARCH_ARM
+#ifdef V8_TARGET_ARCH_A64
+  simulator_ = Simulator::current(isolate_);
+#elif V8_TARGET_ARCH_ARM
   simulator_ = Simulator::current(isolate_);
 #elif V8_TARGET_ARCH_MIPS
   simulator_ = Simulator::current(isolate_);
 #endif
 #endif
   thread_id_ = ThreadId::Current();
 }
 
 
 v8::TryCatch* ThreadLocalTop::TryCatchHandler() {
@@ skipping 1488 matching lines @@
   return to + sizeof(ThreadLocalTop);
 }
 
 
 char* Isolate::RestoreThread(char* from) {
   OS::MemCopy(reinterpret_cast<char*>(thread_local_top()), from,
               sizeof(ThreadLocalTop));
   // This might be just paranoia, but it seems to be needed in case a
   // thread_local_top_ is restored on a separate OS thread.
 #ifdef USE_SIMULATOR
-#ifdef V8_TARGET_ARCH_ARM
+#ifdef V8_TARGET_ARCH_A64
+  thread_local_top()->simulator_ = Simulator::current(this);
+#elif V8_TARGET_ARCH_ARM
   thread_local_top()->simulator_ = Simulator::current(this);
 #elif V8_TARGET_ARCH_MIPS
   thread_local_top()->simulator_ = Simulator::current(this);
 #endif
 #endif
   ASSERT(context() == NULL || context()->IsContext());
   return from + sizeof(ThreadLocalTop);
 }
 
 
@@ skipping 129 matching lines @@
       sizeof(isolate_addresses_[0]) * (kIsolateAddressCount + 1));
 
   heap_.isolate_ = this;
   stack_guard_.isolate_ = this;
 
   // ThreadManager is initialized early to support locking an isolate
   // before it is entered.
   thread_manager_ = new ThreadManager();
   thread_manager_->isolate_ = this;
 
-#if defined(V8_TARGET_ARCH_ARM) && !defined(__arm__) || \
+#if defined(V8_TARGET_ARCH_A64) && !defined(__arm__) || \
+    defined(V8_TARGET_ARCH_ARM) && !defined(__arm__) || \
     defined(V8_TARGET_ARCH_MIPS) && !defined(__mips__)
   simulator_initialized_ = false;
   simulator_i_cache_ = NULL;
   simulator_redirection_ = NULL;
 #endif
 
 #ifdef DEBUG
   // heap_histograms_ initializes itself.
   memset(&js_spill_information_, 0, sizeof(js_spill_information_));
   memset(code_kind_statistics_, 0,
@@ skipping 332 matching lines @@
   code_stub_interface_descriptors_ =
       new CodeStubInterfaceDescriptor[CodeStub::NUMBER_OF_IDS];
   cpu_profiler_ = new CpuProfiler(this);
   heap_profiler_ = new HeapProfiler(heap());
 
   // Enable logging before setting up the heap
   logger_->SetUp(this);
 
   // Initialize other runtime facilities
 #if defined(USE_SIMULATOR)
-#if defined(V8_TARGET_ARCH_ARM) || defined(V8_TARGET_ARCH_MIPS)
+#if defined(V8_TARGET_ARCH_A64) || defined(V8_TARGET_ARCH_ARM) || \
+    defined(V8_TARGET_ARCH_MIPS)
   Simulator::Initialize(this);
 #endif
 #endif
 
   { // NOLINT
     // Ensure that the thread has a valid stack guard.  The v8::Locker object
     // will ensure this too, but we don't have to use lockers if we are only
     // using one thread.
     ExecutionAccess lock(this);
     stack_guard_.InitThread(lock);
@@ skipping 329 matching lines @@
 
 #ifdef DEBUG
 #define ISOLATE_FIELD_OFFSET(type, name, ignored)                       \
 const intptr_t Isolate::name##_debug_offset_ = OFFSET_OF(Isolate, name##_);
 ISOLATE_INIT_LIST(ISOLATE_FIELD_OFFSET)
 ISOLATE_INIT_ARRAY_LIST(ISOLATE_FIELD_OFFSET)
 #undef ISOLATE_FIELD_OFFSET
 #endif
 
 } }  // namespace v8::internal