1/*
2 * Copyright (C) 2009 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 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "MarkStack.h"
28
29#if OS(UNIX) && !OS(SYMBIAN)
30
31#include <unistd.h>
32#include <sys/mman.h>
33
34namespace JSC {
35
36void MarkStack::initializePagesize()
37{
38 MarkStack::s_pageSize = getpagesize();
39}
40
41void* MarkStack::allocateStack(size_t size)
42{
43 return mmap(addr: 0, len: size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, fd: -1, offset: 0);
44}
45void MarkStack::releaseStack(void* addr, size_t size)
46{
47 munmap(addr: reinterpret_cast<char*>(addr), len: size);
48}
49
50}
51
52#endif
53

source code of qtscript/src/3rdparty/javascriptcore/JavaScriptCore/runtime/MarkStackPosix.cpp