Rollback of r11015, r11014, r11011, r11010 in trunk branch.

src/v8.cc

Index: src/v8.cc
diff --git a/src/v8.cc b/src/v8.cc
index 506f3f66068bb2809d06fd4297d231fe602b20eb..98b30385937f47767ffaa53c5f7d9d08b986ab40 100644
--- a/src/v8.cc
+++ b/src/v8.cc
@@ -36,8 +36,6 @@
 #include "hydrogen.h"
 #include "lithium-allocator.h"
 #include "log.h"
-#include "once.h"
-#include "platform.h"
 #include "runtime-profiler.h"
 #include "serialize.h"
 #include "store-buffer.h"
@@ -45,7 +43,8 @@
 namespace v8 {
 namespace internal {
 
-V8_DECLARE_ONCE(init_once);
+static Mutex* init_once_mutex = OS::CreateMutex();
+static bool init_once_called = false;
 
 bool V8::is_running_ = false;
 bool V8::has_been_set_up_ = false;
@@ -54,8 +53,7 @@ bool V8::has_fatal_error_ = false;
 bool V8::use_crankshaft_ = true;
 List<CallCompletedCallback>* V8::call_completed_callbacks_ = NULL;
 
-static LazyMutex entropy_mutex = LAZY_MUTEX_INITIALIZER;
-
+static Mutex* entropy_mutex = OS::CreateMutex();
 static EntropySource entropy_source;
 
 
@@ -119,7 +117,7 @@ static void seed_random(uint32_t* state) {
       state[i] = FLAG_random_seed;
     } else if (entropy_source != NULL) {
       uint32_t val;
-      ScopedLock lock(entropy_mutex.Pointer());
+      ScopedLock lock(entropy_mutex);
       entropy_source(reinterpret_cast<unsigned char*>(&val), sizeof(uint32_t));
       state[i] = val;
     } else {
@@ -239,7 +237,12 @@ Object* V8::FillHeapNumberWithRandom(Object* heap_number,
   return heap_number;
 }
 
-void V8::InitializeOncePerProcessImpl() {
+
+void V8::InitializeOncePerProcess() {
+  ScopedLock lock(init_once_mutex);
+  if (init_once_called) return;
+  init_once_called = true;
+
   // Set up the platform OS support.
   OS::SetUp();
 
@@ -263,12 +266,6 @@ void V8::InitializeOncePerProcessImpl() {
     FLAG_gc_global = true;
     FLAG_max_new_space_size = (1 << (kPageSizeBits - 10)) * 2;
   }
-
-  LOperand::SetUpCaches();
-}
-
-void V8::InitializeOncePerProcess() {
-  CallOnce(&init_once, &InitializeOncePerProcessImpl);
 }
 
 } }  // namespace v8::internal