| /* | |
| * 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) && OS(WINDOWS) | |
| #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) |