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/*
* Copyright (C) 2008 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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 with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "ExecutableAllocator.h"
#if ENABLE(ASSEMBLER)
#include "windows.h"
namespace JSC {
void ExecutableAllocator::intializePageSize()
{
SYSTEM_INFO system_info;
GetSystemInfo(&system_info);
ExecutableAllocator::pageSize = system_info.dwPageSize;
}
ExecutablePool::Allocation ExecutablePool::systemAlloc(size_t n)
{
void* allocation = VirtualAlloc(0, n, MEM_COMMIT | MEM_RESERVE, PAGE_EXECUTE_READWRITE);
if (!allocation)
CRASH();
ExecutablePool::Allocation alloc = {reinterpret_cast<char*>(allocation), n};
return alloc;
}
void ExecutablePool::systemRelease(const ExecutablePool::Allocation& alloc)
{
VirtualFree(alloc.pages, 0, MEM_RELEASE);
}
#if ENABLE(ASSEMBLER_WX_EXCLUSIVE)
#error "ASSEMBLER_WX_EXCLUSIVE not yet suported on this platform."
#endif
}
#endif // HAVE(ASSEMBLER)
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