diff options
Diffstat (limited to 'js/src/assembler/jit/ExecutableAllocatorWin.cpp')
-rw-r--r-- | js/src/assembler/jit/ExecutableAllocatorWin.cpp | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/js/src/assembler/jit/ExecutableAllocatorWin.cpp b/js/src/assembler/jit/ExecutableAllocatorWin.cpp new file mode 100644 index 0000000..e59564a --- /dev/null +++ b/js/src/assembler/jit/ExecutableAllocatorWin.cpp @@ -0,0 +1,60 @@ +/* + * 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 "ExecutableAllocator.h" + +#if ENABLE_ASSEMBLER && WTF_PLATFORM_WIN_OS + +#include "jswin.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); + 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) |