X64: Fix tickprocessor on MacOS 64-bit.

src/platform-macos.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 497 matching lines @@
     while (sampler_->IsActive()) {
       TickSample sample;
 
       // If profiling, we record the pc and sp of the profiled thread.
       if (sampler_->IsProfiling()
           && KERN_SUCCESS == thread_suspend(profiled_thread_)) {
 #if V8_HOST_ARCH_X64
         thread_state_flavor_t flavor = x86_THREAD_STATE64;
         x86_thread_state64_t state;
         mach_msg_type_number_t count = x86_THREAD_STATE64_COUNT;
+#if __DARWIN_UNIX03
+#define REGISTER_FIELD(name) __r ## name
+#else
+#define REGISTER_FIELD(name) r ## name
+#endif // __DARWIN_UNIX03
 #elif V8_HOST_ARCH_IA32
         thread_state_flavor_t flavor = i386_THREAD_STATE;
         i386_thread_state_t state;
         mach_msg_type_number_t count = i386_THREAD_STATE_COUNT;
+#if __DARWIN_UNIX03
+#define REGISTER_FIELD(name) __e ## name
+#else
+#define REGISTER_FIELD(name) e ## name
+#endif // __DARWIN_UNIX03
 #else
 #error Unsupported Mac OS X host architecture.
-#endif  // V8_TARGET_ARCH_IA32
+#endif  // V8_HOST_ARCH
+
         if (thread_get_state(profiled_thread_,
                              flavor,
                              reinterpret_cast<natural_t*>(&state),
                              &count) == KERN_SUCCESS) {
-#if V8_HOST_ARCH_X64
-          UNIMPLEMENTED();
-          sample.pc = 0;
-          sample.sp = 0;
-          sample.fp = 0;
-#elif V8_HOST_ARCH_IA32
-#if __DARWIN_UNIX03
-          sample.pc = state.__eip;
-          sample.sp = state.__esp;
-          sample.fp = state.__ebp;
-#else  // !__DARWIN_UNIX03
-          sample.pc = state.eip;
-          sample.sp = state.esp;
-          sample.fp = state.ebp;
-#endif  // __DARWIN_UNIX03
-#else
-#error Unsupported Mac OS X host architecture.
-#endif  // V8_HOST_ARCH_IA32
+          sample.pc = state.REGISTER_FIELD(ip);
+          sample.sp = state.REGISTER_FIELD(sp);
+          sample.fp = state.REGISTER_FIELD(bp);
           sampler_->SampleStack(&sample);
         }
         thread_resume(profiled_thread_);
       }
 
       // We always sample the VM state.
       sample.state = Logger::state();
       // Invoke tick handler with program counter and stack pointer.
       sampler_->Tick(&sample);
 
       // Wait until next sampling.
       usleep(sampler_->interval_ * 1000);
     }
   }
 };
 
+#undef REGISTER_FIELD
+
 
 // Entry point for sampler thread.
 static void* SamplerEntry(void* arg) {
   Sampler::PlatformData* data =
       reinterpret_cast<Sampler::PlatformData*>(arg);
   data->Runner();
   return 0;
 }
 
 
@@ skipping 41 matching lines @@
 
   // Deallocate Mach port for thread.
   if (IsProfiling()) {
     mach_port_deallocate(data_->task_self_, data_->profiled_thread_);
   }
 }
 
 #endif  // ENABLE_LOGGING_AND_PROFILING
 
 } }  // namespace v8::internal