Landing for pliard@chromium.org: Remove static initializers in v8.

src/platform-win32.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 131 matching lines @@
 
 double ceiling(double x) {
   return ceil(x);
 }
 
 
 static Mutex* limit_mutex = NULL;
 
 #if defined(V8_TARGET_ARCH_IA32)
 static OS::MemCopyFunction memcopy_function = NULL;
-static Mutex* memcopy_function_mutex = OS::CreateMutex();
+static LazyMutex memcopy_function_mutex = LAZY_MUTEX_INITIALIZER;
 // Defined in codegen-ia32.cc.
 OS::MemCopyFunction CreateMemCopyFunction();
 
 // Copy memory area to disjoint memory area.
 void OS::MemCopy(void* dest, const void* src, size_t size) {
   if (memcopy_function == NULL) {
-    ScopedLock lock(memcopy_function_mutex);
+    ScopedLock lock(memcopy_function_mutex.Pointer());
     if (memcopy_function == NULL) {
       OS::MemCopyFunction temp = CreateMemCopyFunction();
       MemoryBarrier();
       memcopy_function = temp;
     }
   }
   // Note: here we rely on dependent reads being ordered. This is true
   // on all architectures we currently support.
   (*memcopy_function)(dest, src, size);
 #ifdef DEBUG
   CHECK_EQ(0, memcmp(dest, src, size));
 #endif
 }
 #endif  // V8_TARGET_ARCH_IA32
 
 #ifdef _WIN64
 typedef double (*ModuloFunction)(double, double);
 static ModuloFunction modulo_function = NULL;
-static Mutex* modulo_function_mutex = OS::CreateMutex();
+static LazyMutex modulo_function_mutex = LAZY_MUTEX_INITIALIZER;
 // Defined in codegen-x64.cc.
 ModuloFunction CreateModuloFunction();
 
 double modulo(double x, double y) {
   if (modulo_function == NULL) {
-    ScopedLock lock(modulo_function_mutex);
+    ScopedLock lock(modulo_function_mutex.Pointer());
     if (modulo_function == NULL) {
       ModuloFunction temp = CreateModuloFunction();
       MemoryBarrier();
       modulo_function = temp;
     }
   }
   // Note: here we rely on dependent reads being ordered. This is true
   // on all architectures we currently support.
   return (*modulo_function)(x, y);
 }
@@ skipping 1856 matching lines @@
       sampler->SampleStack(sample);
       sampler->Tick(sample);
     }
     ResumeThread(profiled_thread);
   }
 
   const int interval_;
   RuntimeProfilerRateLimiter rate_limiter_;
 
   // Protects the process wide state below.
-  static Mutex* mutex_;
+  static LazyMutex mutex_;
   static SamplerThread* instance_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SamplerThread);
 };
 
 
-Mutex* SamplerThread::mutex_ = OS::CreateMutex();
+LazyMutex SamplerThread::mutex_ = LAZY_MUTEX_INITIALIZER;
 SamplerThread* SamplerThread::instance_ = NULL;
 
 
 Sampler::Sampler(Isolate* isolate, int interval)
     : isolate_(isolate),
       interval_(interval),
       profiling_(false),
       active_(false),
       samples_taken_(0) {
   data_ = new PlatformData;
@@ skipping 14 matching lines @@
 
 
 void Sampler::Stop() {
   ASSERT(IsActive());
   SamplerThread::RemoveActiveSampler(this);
   SetActive(false);
 }
 
 
 } }  // namespace v8::internal