18e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project/* 2635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * Copyright (C) 2008 Apple Inc. All rights reserved. 38e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 48e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * Redistribution and use in source and binary forms, with or without 58e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * modification, are permitted provided that the following conditions 68e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * are met: 78e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 1. Redistributions of source code must retain the above copyright 88e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * notice, this list of conditions and the following disclaimer. 98e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * notice, this list of conditions and the following disclaimer in the 118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * documentation and/or other materials provided with the distribution. 128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project */ 258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "config.h" 278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 28635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project#include "ExecutableAllocator.h" 29635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 30d0825bca7fe65beaee391d30da42e937db621564Steve Block#if ENABLE(ASSEMBLER) && OS(WINDOWS) 31635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 32635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project#include "windows.h" 338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectnamespace JSC { 358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 36635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectvoid ExecutableAllocator::intializePageSize() 37635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project{ 38635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project SYSTEM_INFO system_info; 39635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project GetSystemInfo(&system_info); 40635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project ExecutableAllocator::pageSize = system_info.dwPageSize; 41635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project} 42635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 43635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source ProjectExecutablePool::Allocation ExecutablePool::systemAlloc(size_t n) 448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 45231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block void* allocation = VirtualAlloc(0, n, MEM_COMMIT | MEM_RESERVE, PAGE_EXECUTE_READWRITE); 46231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (!allocation) 47231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block CRASH(); 48231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block ExecutablePool::Allocation alloc = {reinterpret_cast<char*>(allocation), n}; 49635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project return alloc; 50635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project} 51635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 52635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectvoid ExecutablePool::systemRelease(const ExecutablePool::Allocation& alloc) 53635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project{ 54635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project VirtualFree(alloc.pages, 0, MEM_RELEASE); 558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 575f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian#if ENABLE(ASSEMBLER_WX_EXCLUSIVE) 585f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian#error "ASSEMBLER_WX_EXCLUSIVE not yet suported on this platform." 595f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian#endif 605f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 62635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 63635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project#endif // HAVE(ASSEMBLER) 64