18e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project/* 28e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The 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 * 88e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 1. Redistributions of source code must retain the above copyright 98e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * notice, this list of conditions and the following disclaimer. 108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * notice, this list of conditions and the following disclaimer in the 128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * documentation and/or other materials provided with the distribution. 138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of 148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * its contributors may be used to endorse or promote products derived 158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * from this software without specific prior written permission. 168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project */ 288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "config.h" 308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "RegisterFile.h" 318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectnamespace JSC { 338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source ProjectRegisterFile::~RegisterFile() 358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#if HAVE(MMAP) 378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project munmap(m_buffer, ((m_max - m_start) + m_maxGlobals) * sizeof(Register)); 388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#elif HAVE(VIRTUALALLOC) 39d0825bca7fe65beaee391d30da42e937db621564Steve Block#if OS(WINCE) 40231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block VirtualFree(m_buffer, DWORD(m_commitEnd) - DWORD(m_buffer), MEM_DECOMMIT); 41231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block#endif 42635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project VirtualFree(m_buffer, 0, MEM_RELEASE); 438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#else 44231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block fastFree(m_buffer); 458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#endif 468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 485f1ab04193ad0130ca8204aadaceae083aca9881Feng Qianvoid RegisterFile::releaseExcessCapacity() 495f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian{ 505f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian#if HAVE(MMAP) && HAVE(MADV_FREE) && !HAVE(VIRTUALALLOC) 515f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian while (madvise(m_start, (m_max - m_start) * sizeof(Register), MADV_FREE) == -1 && errno == EAGAIN) { } 525f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian#elif HAVE(VIRTUALALLOC) 535f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian VirtualFree(m_start, (m_max - m_start) * sizeof(Register), MEM_DECOMMIT); 545f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian m_commitEnd = m_start; 555f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian#endif 565f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian m_maxUsed = m_start; 575f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian} 585f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} // namespace JSC 60