15c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko/* 25c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko * Copyright (C) 2013 The Android Open Source Project 35c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko * 45c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko * Licensed under the Apache License, Version 2.0 (the "License"); 55c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko * you may not use this file except in compliance with the License. 65c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko * You may obtain a copy of the License at 75c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko * 85c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko * http://www.apache.org/licenses/LICENSE-2.0 95c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko * 105c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko * Unless required by applicable law or agreed to in writing, software 115c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko * distributed under the License is distributed on an "AS IS" BASIS, 125c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 135c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko * See the License for the specific language governing permissions and 145c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko * limitations under the License. 155c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko */ 165c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko 175c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko#include <algorithm> 185c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko#include <utility> 195c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko#include "thread.h" 205c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko#include "thread-inl.h" 215c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko#include "base/mutex.h" 225c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko#include "base/mutex-inl.h" 235c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko#include "base/logging.h" 245c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko#include "driver/compiler_driver.h" 255c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko 265c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko#include "dex_file_to_method_inliner_map.h" 275c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko 285c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Markonamespace art { 295c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko 30867a2b35e67ddcbec089964e8f3cd9a827186e48Vladimir MarkoDexFileToMethodInlinerMap::DexFileToMethodInlinerMap() 31e13717e796d338b08ea66f6a7e3470ca44de707fVladimir Marko : lock_("DexFileToMethodInlinerMap lock", kDexFileToMethodInlinerMapLock) { 325c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko} 335c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko 345c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir MarkoDexFileToMethodInlinerMap::~DexFileToMethodInlinerMap() { 355c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko for (auto& entry : inliners_) { 365c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko delete entry.second; 375c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko } 385c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko} 395c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko 40e13717e796d338b08ea66f6a7e3470ca44de707fVladimir MarkoDexFileMethodInliner* DexFileToMethodInlinerMap::GetMethodInliner(const DexFile* dex_file) { 415c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko Thread* self = Thread::Current(); 425c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko { 43e13717e796d338b08ea66f6a7e3470ca44de707fVladimir Marko ReaderMutexLock mu(self, lock_); 445c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko auto it = inliners_.find(dex_file); 455c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko if (it != inliners_.end()) { 46e13717e796d338b08ea66f6a7e3470ca44de707fVladimir Marko return it->second; 475c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko } 485c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko } 495c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko 50e13717e796d338b08ea66f6a7e3470ca44de707fVladimir Marko // We need to acquire our lock_ to modify inliners_ but we want to release it 51e13717e796d338b08ea66f6a7e3470ca44de707fVladimir Marko // before we initialize the new inliner. However, we need to acquire the 52e13717e796d338b08ea66f6a7e3470ca44de707fVladimir Marko // new inliner's lock_ before we release our lock_ to prevent another thread 53e13717e796d338b08ea66f6a7e3470ca44de707fVladimir Marko // from using the uninitialized inliner. This requires explicit calls to 54e13717e796d338b08ea66f6a7e3470ca44de707fVladimir Marko // ExclusiveLock()/ExclusiveUnlock() on one of the locks, the other one 55e13717e796d338b08ea66f6a7e3470ca44de707fVladimir Marko // can use WriterMutexLock. 56e13717e796d338b08ea66f6a7e3470ca44de707fVladimir Marko DexFileMethodInliner* locked_inliner; 57e13717e796d338b08ea66f6a7e3470ca44de707fVladimir Marko { 58e13717e796d338b08ea66f6a7e3470ca44de707fVladimir Marko WriterMutexLock mu(self, lock_); 59e13717e796d338b08ea66f6a7e3470ca44de707fVladimir Marko DexFileMethodInliner** inliner = &inliners_[dex_file]; // inserts new entry if not found 60e13717e796d338b08ea66f6a7e3470ca44de707fVladimir Marko if (*inliner) { 61e13717e796d338b08ea66f6a7e3470ca44de707fVladimir Marko return *inliner; 62e13717e796d338b08ea66f6a7e3470ca44de707fVladimir Marko } 63e13717e796d338b08ea66f6a7e3470ca44de707fVladimir Marko *inliner = new DexFileMethodInliner; 64e13717e796d338b08ea66f6a7e3470ca44de707fVladimir Marko DCHECK(*inliner != nullptr); 65e13717e796d338b08ea66f6a7e3470ca44de707fVladimir Marko locked_inliner = *inliner; 66e13717e796d338b08ea66f6a7e3470ca44de707fVladimir Marko locked_inliner->lock_.ExclusiveLock(self); // Acquire inliner's lock_ before releasing lock_. 675c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko } 68e13717e796d338b08ea66f6a7e3470ca44de707fVladimir Marko locked_inliner->FindIntrinsics(dex_file); 69e13717e796d338b08ea66f6a7e3470ca44de707fVladimir Marko locked_inliner->lock_.ExclusiveUnlock(self); 70e13717e796d338b08ea66f6a7e3470ca44de707fVladimir Marko return locked_inliner; 715c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko} 725c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko 735c96e6b4dc354a7439b211b93462fbe8edea5e57Vladimir Marko} // namespace art 74