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