1/* 2 * Copyright (C) 2008 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of Apple Inc. ("Apple") nor the names of 14 * its contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29#include "config.h" 30#include "InitializeThreading.h" 31 32#include "ExecutableAllocator.h" 33#include "Heap.h" 34#include "HeapStatistics.h" 35#include "Options.h" 36#include "Identifier.h" 37#include "JSDateMath.h" 38#include "JSGlobalObject.h" 39#include "JSLock.h" 40#include "LLIntData.h" 41#include "StructureIDTable.h" 42#include "WriteBarrier.h" 43#include <mutex> 44#include <wtf/dtoa.h> 45#include <wtf/Threading.h> 46#include <wtf/dtoa/cached-powers.h> 47 48using namespace WTF; 49 50namespace JSC { 51 52void initializeThreading() 53{ 54 static std::once_flag initializeThreadingOnceFlag; 55 56 std::call_once(initializeThreadingOnceFlag, []{ 57 WTF::double_conversion::initialize(); 58 WTF::initializeThreading(); 59 GlobalJSLock::initialize(); 60 Options::initialize(); 61 if (Options::recordGCPauseTimes()) 62 HeapStatistics::initialize(); 63#if ENABLE(WRITE_BARRIER_PROFILING) 64 WriteBarrierCounters::initialize(); 65#endif 66#if ENABLE(ASSEMBLER) 67 ExecutableAllocator::initializeAllocator(); 68#endif 69 JSStack::initializeThreading(); 70 LLInt::initialize(); 71#ifndef NDEBUG 72 DisallowGC::initialize(); 73#endif 74 WTFThreadData& threadData = wtfThreadData(); 75 threadData.setSavedLastStackTop(threadData.stack().origin()); 76 }); 77} 78 79} // namespace JSC 80