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comparison: js/src/assembler/jit/ExecutableAllocator.cpp
js/src/assembler/jit/ExecutableAllocator.cpp
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| 1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- | |
| 2 * vim: set ts=8 sts=4 et sw=4 tw=99: | |
| 3 * | |
| 4 * Copyright (C) 2008 Apple Inc. All rights reserved. | |
| 5 * | |
| 6 * Redistribution and use in source and binary forms, with or without | |
| 7 * modification, are permitted provided that the following conditions | |
| 8 * are met: | |
| 9 * 1. Redistributions of source code must retain the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer. | |
| 11 * 2. Redistributions in binary form must reproduce the above copyright | |
| 12 * notice, this list of conditions and the following disclaimer in the | |
| 13 * documentation and/or other materials provided with the distribution. | |
| 14 * | |
| 15 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY | |
| 16 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR | |
| 19 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 22 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 23 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 26 */ | |
| 27 | |
| 28 #include "assembler/jit/ExecutableAllocator.h" | |
| 29 | |
| 30 #include "js/MemoryMetrics.h" | |
| 31 | |
| 32 #if ENABLE_ASSEMBLER | |
| 33 | |
| 34 namespace JSC { | |
| 35 | |
| 36 size_t ExecutableAllocator::pageSize = 0; | |
| 37 size_t ExecutableAllocator::largeAllocSize = 0; | |
| 38 | |
| 39 ExecutablePool::~ExecutablePool() | |
| 40 { | |
| 41 MOZ_ASSERT(m_ionCodeBytes == 0); | |
| 42 MOZ_ASSERT(m_baselineCodeBytes == 0); | |
| 43 MOZ_ASSERT(m_regexpCodeBytes == 0); | |
| 44 MOZ_ASSERT(m_otherCodeBytes == 0); | |
| 45 | |
| 46 m_allocator->releasePoolPages(this); | |
| 47 } | |
| 48 | |
| 49 void | |
| 50 ExecutableAllocator::addSizeOfCode(JS::CodeSizes *sizes) const | |
| 51 { | |
| 52 if (m_pools.initialized()) { | |
| 53 for (ExecPoolHashSet::Range r = m_pools.all(); !r.empty(); r.popFront()) { | |
| 54 ExecutablePool* pool = r.front(); | |
| 55 sizes->ion += pool->m_ionCodeBytes; | |
| 56 sizes->baseline += pool->m_baselineCodeBytes; | |
| 57 sizes->regexp += pool->m_regexpCodeBytes; | |
| 58 sizes->other += pool->m_otherCodeBytes; | |
| 59 sizes->unused += pool->m_allocation.size - pool->m_ionCodeBytes | |
| 60 - pool->m_baselineCodeBytes | |
| 61 - pool->m_regexpCodeBytes | |
| 62 - pool->m_otherCodeBytes; | |
| 63 } | |
| 64 } | |
| 65 } | |
| 66 | |
| 67 void | |
| 68 ExecutableAllocator::toggleAllCodeAsAccessible(bool accessible) | |
| 69 { | |
| 70 if (!m_pools.initialized()) | |
| 71 return; | |
| 72 | |
| 73 for (ExecPoolHashSet::Range r = m_pools.all(); !r.empty(); r.popFront()) { | |
| 74 ExecutablePool* pool = r.front(); | |
| 75 pool->toggleAllCodeAsAccessible(accessible); | |
| 76 } | |
| 77 } | |
| 78 | |
| 79 bool | |
| 80 ExecutableAllocator::codeContains(char* address) | |
| 81 { | |
| 82 if (!m_pools.initialized()) | |
| 83 return false; | |
| 84 | |
| 85 for (ExecPoolHashSet::Range r = m_pools.all(); !r.empty(); r.popFront()) { | |
| 86 ExecutablePool* pool = r.front(); | |
| 87 if (pool->codeContains(address)) | |
| 88 return true; | |
| 89 } | |
| 90 | |
| 91 return false; | |
| 92 } | |
| 93 | |
| 94 } | |
| 95 | |
| 96 #endif // HAVE(ASSEMBLER) |
