2 * Copyright (C) 2008 Apple Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
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10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 #include "ExecutableAllocator.h"
36 void ExecutableAllocator::intializePageSize()
38 ExecutableAllocator::pageSize = getpagesize();
41 ExecutablePool::Allocation ExecutablePool::systemAlloc(size_t n)
43 ExecutablePool::Allocation alloc = {reinterpret_cast<char*>(mmap(NULL, n, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANON, -1, 0)), n};
47 void ExecutablePool::systemRelease(const ExecutablePool::Allocation& alloc)
49 if (munmap(alloc.pages, alloc.size))
55 #endif // HAVE(ASSEMBLER)