oat_file_manager.cc revision 14d7b3e37b6129d845d6c8da8ee8d612937c63d4
1f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier/* 2f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier * Copyright (C) 2015 The Android Open Source Project 3f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier * 4f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier * Licensed under the Apache License, Version 2.0 (the "License"); 5f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier * you may not use this file except in compliance with the License. 6f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier * You may obtain a copy of the License at 7f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier * 8f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier * http://www.apache.org/licenses/LICENSE-2.0 9f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier * 10f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier * Unless required by applicable law or agreed to in writing, software 11f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier * distributed under the License is distributed on an "AS IS" BASIS, 12f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier * See the License for the specific language governing permissions and 14f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier * limitations under the License. 15f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier */ 16f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 17f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier#include "oat_file_manager.h" 18f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 19f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier#include <memory> 20f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier#include <queue> 21f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier#include <vector> 22f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 23f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier#include "base/logging.h" 24f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier#include "base/stl_util.h" 2532ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier#include "base/systrace.h" 26fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier#include "class_linker.h" 2780b37b7e679a530738c9bcbd39873b6dacf177e5Mathieu Chartier#include "dex_file-inl.h" 2861d2b2d353ba4ab952247d2bff2c905598118bb4Mathieu Chartier#include "gc/scoped_gc_critical_section.h" 29f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier#include "gc/space/image_space.h" 30fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier#include "handle_scope-inl.h" 31fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier#include "mirror/class_loader.h" 32f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier#include "oat_file_assistant.h" 33fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier#include "scoped_thread_state_change.h" 34f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier#include "thread-inl.h" 35a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier#include "thread_list.h" 36f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 37f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartiernamespace art { 38f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 39fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier// If true, then we attempt to load the application image if it exists. 40fbc31087932a65e036a153afab3049dc5298656aMathieu Chartierstatic constexpr bool kEnableAppImage = true; 41fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier 42f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartierconst OatFile* OatFileManager::RegisterOatFile(std::unique_ptr<const OatFile> oat_file) { 43e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier WriterMutexLock mu(Thread::Current(), *Locks::oat_file_manager_lock_); 44f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier DCHECK(oat_file != nullptr); 45f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (kIsDebugBuild) { 46e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier CHECK(oat_files_.find(oat_file) == oat_files_.end()); 47f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier for (const std::unique_ptr<const OatFile>& existing : oat_files_) { 48f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier CHECK_NE(oat_file.get(), existing.get()) << oat_file->GetLocation(); 49f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Check that we don't have an oat file with the same address. Copies of the same oat file 50f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // should be loaded at different addresses. 51f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier CHECK_NE(oat_file->Begin(), existing->Begin()) << "Oat file already mapped at that location"; 52f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 53f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 54f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier have_non_pic_oat_file_ = have_non_pic_oat_file_ || !oat_file->IsPic(); 55e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier const OatFile* ret = oat_file.get(); 56e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier oat_files_.insert(std::move(oat_file)); 57e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier return ret; 58e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier} 59e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier 60e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartiervoid OatFileManager::UnRegisterAndDeleteOatFile(const OatFile* oat_file) { 61e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier WriterMutexLock mu(Thread::Current(), *Locks::oat_file_manager_lock_); 62e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier DCHECK(oat_file != nullptr); 63e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier std::unique_ptr<const OatFile> compare(oat_file); 64e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier auto it = oat_files_.find(compare); 65e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier CHECK(it != oat_files_.end()); 66e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier oat_files_.erase(it); 67e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier compare.release(); 68f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 69f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 700b791279f67b0f4b72db991707b16b737871bcdeCalin Juravleconst OatFile* OatFileManager::FindOpenedOatFileFromDexLocation( 710b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle const std::string& dex_base_location) const { 720b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle ReaderMutexLock mu(Thread::Current(), *Locks::oat_file_manager_lock_); 730b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle for (const std::unique_ptr<const OatFile>& oat_file : oat_files_) { 740b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle const std::vector<const OatDexFile*>& oat_dex_files = oat_file->GetOatDexFiles(); 750b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle for (const OatDexFile* oat_dex_file : oat_dex_files) { 760b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle if (DexFile::GetBaseLocation(oat_dex_file->GetDexFileLocation()) == dex_base_location) { 770b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle return oat_file.get(); 780b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle } 790b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle } 800b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle } 810b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle return nullptr; 820b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle} 830b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle 84f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartierconst OatFile* OatFileManager::FindOpenedOatFileFromOatLocation(const std::string& oat_location) 85f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier const { 86f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier ReaderMutexLock mu(Thread::Current(), *Locks::oat_file_manager_lock_); 87e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier return FindOpenedOatFileFromOatLocationLocked(oat_location); 88e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier} 89e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier 90e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartierconst OatFile* OatFileManager::FindOpenedOatFileFromOatLocationLocked( 91e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier const std::string& oat_location) const { 92f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier for (const std::unique_ptr<const OatFile>& oat_file : oat_files_) { 93f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (oat_file->GetLocation() == oat_location) { 94f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return oat_file.get(); 95f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 96f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 97f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return nullptr; 98f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 99f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 100dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Haostd::vector<const OatFile*> OatFileManager::GetBootOatFiles() const { 101dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao std::vector<const OatFile*> oat_files; 102dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao std::vector<gc::space::ImageSpace*> image_spaces = 103dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao Runtime::Current()->GetHeap()->GetBootImageSpaces(); 104dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao for (gc::space::ImageSpace* image_space : image_spaces) { 105dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao oat_files.push_back(image_space->GetOatFile()); 106dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao } 107dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao return oat_files; 108f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 109f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 110f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartierconst OatFile* OatFileManager::GetPrimaryOatFile() const { 111f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier ReaderMutexLock mu(Thread::Current(), *Locks::oat_file_manager_lock_); 112dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao std::vector<const OatFile*> boot_oat_files = GetBootOatFiles(); 113dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao if (!boot_oat_files.empty()) { 114f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier for (const std::unique_ptr<const OatFile>& oat_file : oat_files_) { 115dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao if (std::find(boot_oat_files.begin(), boot_oat_files.end(), oat_file.get()) == 116dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao boot_oat_files.end()) { 117f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return oat_file.get(); 118f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 119f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 120f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 121f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return nullptr; 122f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 123f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 124f9c6fc610b27887f832e453a0da1789187293408Mathieu ChartierOatFileManager::~OatFileManager() { 125e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier // Explicitly clear oat_files_ since the OatFile destructor calls back into OatFileManager for 126e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier // UnRegisterOatFileLocation. 127e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier oat_files_.clear(); 128f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 129f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 130dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Haostd::vector<const OatFile*> OatFileManager::RegisterImageOatFiles( 131dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao std::vector<gc::space::ImageSpace*> spaces) { 132dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao std::vector<const OatFile*> oat_files; 133dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao for (gc::space::ImageSpace* space : spaces) { 134dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao oat_files.push_back(RegisterOatFile(space->ReleaseOatFile())); 135dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao } 136dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao return oat_files; 137f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 138f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 139f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartierclass DexFileAndClassPair : ValueObject { 140f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier public: 141f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier DexFileAndClassPair(const DexFile* dex_file, size_t current_class_index, bool from_loaded_oat) 142f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier : cached_descriptor_(GetClassDescriptor(dex_file, current_class_index)), 143f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier dex_file_(dex_file), 144f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier current_class_index_(current_class_index), 145f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier from_loaded_oat_(from_loaded_oat) {} 146f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 14780b37b7e679a530738c9bcbd39873b6dacf177e5Mathieu Chartier DexFileAndClassPair(const DexFileAndClassPair& rhs) = default; 148f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 14980b37b7e679a530738c9bcbd39873b6dacf177e5Mathieu Chartier DexFileAndClassPair& operator=(const DexFileAndClassPair& rhs) = default; 150f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 151f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier const char* GetCachedDescriptor() const { 152f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return cached_descriptor_; 153f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 154f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 155f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier bool operator<(const DexFileAndClassPair& rhs) const { 156f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier const int cmp = strcmp(cached_descriptor_, rhs.cached_descriptor_); 157f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (cmp != 0) { 158f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Note that the order must be reversed. We want to iterate over the classes in dex files. 159f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // They are sorted lexicographically. Thus, the priority-queue must be a min-queue. 160f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return cmp > 0; 161f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 162f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return dex_file_ < rhs.dex_file_; 163f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 164f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 165f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier bool DexFileHasMoreClasses() const { 166f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return current_class_index_ + 1 < dex_file_->NumClassDefs(); 167f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 168f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 169f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier void Next() { 170f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier ++current_class_index_; 171f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao cached_descriptor_ = GetClassDescriptor(dex_file_, current_class_index_); 172f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 173f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 174f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier size_t GetCurrentClassIndex() const { 175f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return current_class_index_; 176f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 177f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 178f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier bool FromLoadedOat() const { 179f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return from_loaded_oat_; 180f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 181f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 182f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier const DexFile* GetDexFile() const { 183f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return dex_file_; 184f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 185f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 186f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier private: 187f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier static const char* GetClassDescriptor(const DexFile* dex_file, size_t index) { 188f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier DCHECK(IsUint<16>(index)); 189f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier const DexFile::ClassDef& class_def = dex_file->GetClassDef(static_cast<uint16_t>(index)); 190f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return dex_file->StringByTypeIdx(class_def.class_idx_); 191f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 192f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 193f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier const char* cached_descriptor_; 194f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao const DexFile* dex_file_; 195f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier size_t current_class_index_; 196f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier bool from_loaded_oat_; // We only need to compare mismatches between what we load now 197f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // and what was loaded before. Any old duplicates must have been 198f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // OK, and any new "internal" duplicates are as well (they must 199f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // be from multidex, which resolves correctly). 200f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier}; 201f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 202f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartierstatic void AddDexFilesFromOat(const OatFile* oat_file, 203f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier bool already_loaded, 20414d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier /*out*/std::priority_queue<DexFileAndClassPair>* heap, 20514d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier std::vector<std::unique_ptr<const DexFile>>* opened_dex_files) { 206f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier for (const OatDexFile* oat_dex_file : oat_file->GetOatDexFiles()) { 207f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier std::string error; 208f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier std::unique_ptr<const DexFile> dex_file = oat_dex_file->OpenDexFile(&error); 209f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (dex_file == nullptr) { 210f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier LOG(WARNING) << "Could not create dex file from oat file: " << error; 211f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } else if (dex_file->NumClassDefs() > 0U) { 21214d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier heap->emplace(dex_file.get(), /*current_class_index*/0U, already_loaded); 21314d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier opened_dex_files->push_back(std::move(dex_file)); 214f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 215f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 216f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 217f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 218f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartierstatic void AddNext(/*inout*/DexFileAndClassPair* original, 21914d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier /*inout*/std::priority_queue<DexFileAndClassPair>* heap) { 220f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (original->DexFileHasMoreClasses()) { 221f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier original->Next(); 222f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier heap->push(std::move(*original)); 223f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 224f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao} 225f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 226f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Haostatic void IterateOverJavaDexFile(mirror::Object* dex_file, 227f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao ArtField* const cookie_field, 228f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao std::function<bool(const DexFile*)> fn) 229f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao SHARED_REQUIRES(Locks::mutator_lock_) { 230f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (dex_file != nullptr) { 231f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao mirror::LongArray* long_array = cookie_field->GetObject(dex_file)->AsLongArray(); 232f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (long_array == nullptr) { 233f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // This should never happen so log a warning. 234f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao LOG(WARNING) << "Null DexFile::mCookie"; 235f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return; 236f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 237f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao int32_t long_array_size = long_array->GetLength(); 238f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Start from 1 to skip the oat file. 239f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao for (int32_t j = 1; j < long_array_size; ++j) { 240f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao const DexFile* cp_dex_file = reinterpret_cast<const DexFile*>(static_cast<uintptr_t>( 241f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao long_array->GetWithoutChecks(j))); 242f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (!fn(cp_dex_file)) { 243f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return; 244f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 245f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 246f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 247f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao} 248f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 249f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Haostatic void IterateOverPathClassLoader( 250f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao ScopedObjectAccessAlreadyRunnable& soa, 251f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao Handle<mirror::ClassLoader> class_loader, 252f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao MutableHandle<mirror::ObjectArray<mirror::Object>> dex_elements, 253f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao std::function<bool(const DexFile*)> fn) SHARED_REQUIRES(Locks::mutator_lock_) { 254f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Handle this step. 255f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Handle as if this is the child PathClassLoader. 256f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // The class loader is a PathClassLoader which inherits from BaseDexClassLoader. 257f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // We need to get the DexPathList and loop through it. 258f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao ArtField* const cookie_field = soa.DecodeField(WellKnownClasses::dalvik_system_DexFile_cookie); 259f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao ArtField* const dex_file_field = 260f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao soa.DecodeField(WellKnownClasses::dalvik_system_DexPathList__Element_dexFile); 261f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao mirror::Object* dex_path_list = 262f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao soa.DecodeField(WellKnownClasses::dalvik_system_PathClassLoader_pathList)-> 263f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao GetObject(class_loader.Get()); 264f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (dex_path_list != nullptr && dex_file_field != nullptr && cookie_field != nullptr) { 265f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // DexPathList has an array dexElements of Elements[] which each contain a dex file. 266f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao mirror::Object* dex_elements_obj = 267f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao soa.DecodeField(WellKnownClasses::dalvik_system_DexPathList_dexElements)-> 268f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao GetObject(dex_path_list); 269f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Loop through each dalvik.system.DexPathList$Element's dalvik.system.DexFile and look 270f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // at the mCookie which is a DexFile vector. 271f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (dex_elements_obj != nullptr) { 272f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao dex_elements.Assign(dex_elements_obj->AsObjectArray<mirror::Object>()); 273f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao for (int32_t i = 0; i < dex_elements->GetLength(); ++i) { 274f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao mirror::Object* element = dex_elements->GetWithoutChecks(i); 275f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (element == nullptr) { 276f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Should never happen, fall back to java code to throw a NPE. 277f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao break; 278f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 279f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao mirror::Object* dex_file = dex_file_field->GetObject(element); 280f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao IterateOverJavaDexFile(dex_file, cookie_field, fn); 281f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 282f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 283f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 284f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 285f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 286f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Haostatic bool GetDexFilesFromClassLoader( 287f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao ScopedObjectAccessAlreadyRunnable& soa, 288f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao mirror::ClassLoader* class_loader, 289f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao std::priority_queue<DexFileAndClassPair>* queue) SHARED_REQUIRES(Locks::mutator_lock_) { 290f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (ClassLinker::IsBootClassLoader(soa, class_loader)) { 291f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // The boot class loader. We don't load any of these files, as we know we compiled against 292f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // them correctly. 293f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return true; 294f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 295f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 296f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Unsupported class-loader? 297f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (class_loader->GetClass() != 298f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao soa.Decode<mirror::Class*>(WellKnownClasses::dalvik_system_PathClassLoader)) { 299f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao VLOG(class_linker) << "Unsupported class-loader " << PrettyClass(class_loader->GetClass()); 300f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return false; 301f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 302f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 303f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao bool recursive_result = GetDexFilesFromClassLoader(soa, class_loader->GetParent(), queue); 304f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (!recursive_result) { 305f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Something wrong up the chain. 306f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return false; 307f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 308f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 309f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Collect all the dex files. 310f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao auto GetDexFilesFn = [&] (const DexFile* cp_dex_file) 311f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao SHARED_REQUIRES(Locks::mutator_lock_) { 312f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (cp_dex_file->NumClassDefs() > 0) { 313f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao queue->emplace(cp_dex_file, 0U, true); 314f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 315f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return true; // Continue looking. 316f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao }; 317f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 318f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Handle for dex-cache-element. 319f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao StackHandleScope<3> hs(soa.Self()); 320f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao MutableHandle<mirror::ObjectArray<mirror::Object>> dex_elements( 321f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao hs.NewHandle<mirror::ObjectArray<mirror::Object>>(nullptr)); 322f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao Handle<mirror::ClassLoader> h_class_loader(hs.NewHandle(class_loader)); 323f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 324f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao IterateOverPathClassLoader(soa, h_class_loader, dex_elements, GetDexFilesFn); 325f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 326f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return true; 327f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao} 328f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 329f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Haostatic void GetDexFilesFromDexElementsArray( 330f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao ScopedObjectAccessAlreadyRunnable& soa, 331f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao Handle<mirror::ObjectArray<mirror::Object>> dex_elements, 332f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao std::priority_queue<DexFileAndClassPair>* queue) SHARED_REQUIRES(Locks::mutator_lock_) { 333f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (dex_elements.Get() == nullptr) { 334f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Nothing to do. 335f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return; 336f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 337f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 338f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao ArtField* const cookie_field = soa.DecodeField(WellKnownClasses::dalvik_system_DexFile_cookie); 339f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao ArtField* const dex_file_field = 340f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao soa.DecodeField(WellKnownClasses::dalvik_system_DexPathList__Element_dexFile); 341f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao const mirror::Class* const element_class = soa.Decode<mirror::Class*>( 342f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao WellKnownClasses::dalvik_system_DexPathList__Element); 343f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao const mirror::Class* const dexfile_class = soa.Decode<mirror::Class*>( 344f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao WellKnownClasses::dalvik_system_DexFile); 345f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 346f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Collect all the dex files. 347f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao auto GetDexFilesFn = [&] (const DexFile* cp_dex_file) 348f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao SHARED_REQUIRES(Locks::mutator_lock_) { 349f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (cp_dex_file != nullptr && cp_dex_file->NumClassDefs() > 0) { 350f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao queue->emplace(cp_dex_file, 0U, true); 351f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 352f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return true; // Continue looking. 353f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao }; 354f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 355f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao for (int32_t i = 0; i < dex_elements->GetLength(); ++i) { 356f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao mirror::Object* element = dex_elements->GetWithoutChecks(i); 357f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (element == nullptr) { 358f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao continue; 359f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 360f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 361f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // We support this being dalvik.system.DexPathList$Element and dalvik.system.DexFile. 362f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 363f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao mirror::Object* dex_file; 364f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (element->GetClass() == element_class) { 365f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao dex_file = dex_file_field->GetObject(element); 366f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } else if (element->GetClass() == dexfile_class) { 367f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao dex_file = element; 368f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } else { 369f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao LOG(WARNING) << "Unsupported element in dex_elements: " << PrettyClass(element->GetClass()); 370f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao continue; 371f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 372f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 373f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao IterateOverJavaDexFile(dex_file, cookie_field, GetDexFilesFn); 374f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 375f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao} 376f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 377f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Haostatic bool AreSharedLibrariesOk(const std::string shared_libraries, 378f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao std::priority_queue<DexFileAndClassPair>& queue) { 379f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (shared_libraries.empty()) { 380f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (queue.empty()) { 381f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // No shared libraries or oat files, as expected. 382f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return true; 383f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 384f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } else { 385f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (shared_libraries.compare(OatFile::kSpecialSharedLibrary) == 0) { 386f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // If we find the special shared library, skip the shared libraries check. 387f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return true; 388f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 389f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Shared libraries is a series of dex file paths and their checksums, each separated by '*'. 390f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao std::vector<std::string> shared_libraries_split; 391f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao Split(shared_libraries, '*', &shared_libraries_split); 392f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 393f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao size_t index = 0; 394f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao std::priority_queue<DexFileAndClassPair> temp = queue; 395f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao while (!temp.empty() && index < shared_libraries_split.size() - 1) { 396f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao DexFileAndClassPair pair(temp.top()); 397f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao const DexFile* dex_file = pair.GetDexFile(); 398f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao std::string dex_filename(dex_file->GetLocation()); 399f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao uint32_t dex_checksum = dex_file->GetLocationChecksum(); 400f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (dex_filename != shared_libraries_split[index] || 401f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao dex_checksum != std::stoul(shared_libraries_split[index + 1])) { 402f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao break; 403f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 404f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao temp.pop(); 405f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao index += 2; 406f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 407f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 408f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Check is successful if it made it through the queue and all the shared libraries. 409f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return temp.empty() && index == shared_libraries_split.size(); 410f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 411f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return false; 412f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao} 413f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 414f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier// Check for class-def collisions in dex files. 415f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier// 416f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao// This first walks the class loader chain, getting all the dex files from the class loader. If 417f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao// the class loader is null or one of the class loaders in the chain is unsupported, we collect 418f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao// dex files from all open non-boot oat files to be safe. 419f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao// 420f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao// This first checks whether the shared libraries are in the expected order and the oat files 421f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao// have the expected checksums. If so, we exit early. Otherwise, we do the collision check. 422f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao// 423f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao// The collision check works by maintaining a heap with one class from each dex file, sorted by the 424f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao// class descriptor. Then a dex-file/class pair is continually removed from the heap and compared 425f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier// against the following top element. If the descriptor is the same, it is now checked whether 426f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier// the two elements agree on whether their dex file was from an already-loaded oat-file or the 427f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier// new oat file. Any disagreement indicates a collision. 428f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartierbool OatFileManager::HasCollisions(const OatFile* oat_file, 429f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao jobject class_loader, 430f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao jobjectArray dex_elements, 431f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier std::string* error_msg /*out*/) const { 432f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier DCHECK(oat_file != nullptr); 433f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier DCHECK(error_msg != nullptr); 434f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 435f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao std::priority_queue<DexFileAndClassPair> queue; 436f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 437f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Try to get dex files from the given class loader. If the class loader is null, or we do 438f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // not support one of the class loaders in the chain, conservatively compare against all 439f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // (non-boot) oat files. 440f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao bool class_loader_ok = false; 441f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao { 442f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao ScopedObjectAccess soa(Thread::Current()); 443f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao StackHandleScope<2> hs(Thread::Current()); 444f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao Handle<mirror::ClassLoader> h_class_loader = 445f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao hs.NewHandle(soa.Decode<mirror::ClassLoader*>(class_loader)); 446f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao Handle<mirror::ObjectArray<mirror::Object>> h_dex_elements = 447f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao hs.NewHandle(soa.Decode<mirror::ObjectArray<mirror::Object>*>(dex_elements)); 448f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (h_class_loader.Get() != nullptr && 449f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao GetDexFilesFromClassLoader(soa, h_class_loader.Get(), &queue)) { 450f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao class_loader_ok = true; 451f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 452f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // In this case, also take into account the dex_elements array, if given. We don't need to 453f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // read it otherwise, as we'll compare against all open oat files anyways. 454f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao GetDexFilesFromDexElementsArray(soa, h_dex_elements, &queue); 455f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } else if (h_class_loader.Get() != nullptr) { 456f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao VLOG(class_linker) << "Something unsupported with " 457f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao << PrettyClass(h_class_loader->GetClass()); 458f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 459f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 460f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 461f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Dex files are registered late - once a class is actually being loaded. We have to compare 462f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // against the open oat files. Take the oat_file_manager_lock_ that protects oat_files_ accesses. 463f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier ReaderMutexLock mu(Thread::Current(), *Locks::oat_file_manager_lock_); 464f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 46514d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier // Vector that holds the newly opened dex files live, this is done to prevent leaks. 46614d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier std::vector<std::unique_ptr<const DexFile>> opened_dex_files; 46714d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier 468f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (!class_loader_ok) { 469f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Add dex files from already loaded oat files, but skip boot. 470f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 471f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Clean up the queue. 472f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao while (!queue.empty()) { 473f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao queue.pop(); 474f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 475f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 476f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao std::vector<const OatFile*> boot_oat_files = GetBootOatFiles(); 477f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // The same OatFile can be loaded multiple times at different addresses. In this case, we don't 478f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // need to check both against each other since they would have resolved the same way at compile 479f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // time. 480f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao std::unordered_set<std::string> unique_locations; 481f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao for (const std::unique_ptr<const OatFile>& loaded_oat_file : oat_files_) { 482f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao DCHECK_NE(loaded_oat_file.get(), oat_file); 483f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao const std::string& location = loaded_oat_file->GetLocation(); 484f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (std::find(boot_oat_files.begin(), boot_oat_files.end(), loaded_oat_file.get()) == 485f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao boot_oat_files.end() && location != oat_file->GetLocation() && 486f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao unique_locations.find(location) == unique_locations.end()) { 487f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao unique_locations.insert(location); 48814d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier AddDexFilesFromOat(loaded_oat_file.get(), 48914d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier /*already_loaded*/true, 49014d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier &queue, 49114d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier /*out*/&opened_dex_files); 492f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 493f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 494f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 495f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 496f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Exit if shared libraries are ok. Do a full duplicate classes check otherwise. 497f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao const std::string 498f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao shared_libraries(oat_file->GetOatHeader().GetStoreValueByKey(OatHeader::kClassPathKey)); 499f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (AreSharedLibrariesOk(shared_libraries, queue)) { 500f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return false; 501f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 502f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 5031fdbe1b034d97b852551d24e70245df64f03ebebAndreas Gampe ScopedTrace st("Collision check"); 5041fdbe1b034d97b852551d24e70245df64f03ebebAndreas Gampe 505f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Add dex files from the oat file to check. 50614d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier AddDexFilesFromOat(oat_file, /*already_loaded*/false, &queue, &opened_dex_files); 507f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 508f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Now drain the queue. 509f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier while (!queue.empty()) { 510f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Modifying the top element is only safe if we pop right after. 51180b37b7e679a530738c9bcbd39873b6dacf177e5Mathieu Chartier DexFileAndClassPair compare_pop(queue.top()); 512f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier queue.pop(); 513f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 514f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Compare against the following elements. 515f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier while (!queue.empty()) { 51680b37b7e679a530738c9bcbd39873b6dacf177e5Mathieu Chartier DexFileAndClassPair top(queue.top()); 517f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 518f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (strcmp(compare_pop.GetCachedDescriptor(), top.GetCachedDescriptor()) == 0) { 519f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Same descriptor. Check whether it's crossing old-oat-files to new-oat-files. 520f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (compare_pop.FromLoadedOat() != top.FromLoadedOat()) { 521f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier *error_msg = 522f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier StringPrintf("Found duplicated class when checking oat files: '%s' in %s and %s", 523f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier compare_pop.GetCachedDescriptor(), 524f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier compare_pop.GetDexFile()->GetLocation().c_str(), 525f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier top.GetDexFile()->GetLocation().c_str()); 526f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return true; 527f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 528f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier queue.pop(); 52914d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier AddNext(&top, &queue); 530f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } else { 531f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Something else. Done here. 532f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier break; 533f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 534f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 53514d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier AddNext(&compare_pop, &queue); 536f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 537f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 538f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return false; 539f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 540f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 541f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartierstd::vector<std::unique_ptr<const DexFile>> OatFileManager::OpenDexFilesFromOat( 542f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier const char* dex_location, 543f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier const char* oat_location, 544fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier jobject class_loader, 545fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier jobjectArray dex_elements, 546e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier const OatFile** out_oat_file, 547f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier std::vector<std::string>* error_msgs) { 54832ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier ScopedTrace trace(__FUNCTION__); 549f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier CHECK(dex_location != nullptr); 550f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier CHECK(error_msgs != nullptr); 551f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 552f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Verify we aren't holding the mutator lock, which could starve GC if we 553f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // have to generate or relocate an oat file. 554fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier Thread* const self = Thread::Current(); 555fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier Locks::mutator_lock_->AssertNotHeld(self); 556fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier Runtime* const runtime = Runtime::Current(); 557b077e15d2d11b7c81aacbcd4a46c2b1e9c9ba20dCalin Juravle 558f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier OatFileAssistant oat_file_assistant(dex_location, 559f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier oat_location, 560f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier kRuntimeISA, 56129d38e77c553c6cf71fc4dafe2d22b4e3f814872Andreas Gampe /*profile_changed*/false, 562fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier !runtime->IsAotCompiler()); 563f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 564f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Lock the target oat location to avoid races generating and loading the 565f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // oat file. 566f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier std::string error_msg; 567f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (!oat_file_assistant.Lock(/*out*/&error_msg)) { 568f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Don't worry too much if this fails. If it does fail, it's unlikely we 569f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // can generate an oat file anyway. 570f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier VLOG(class_linker) << "OatFileAssistant::Lock: " << error_msg; 571f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 572f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 573f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier const OatFile* source_oat_file = nullptr; 574f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 57501be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler if (!oat_file_assistant.IsUpToDate()) { 57601be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler // Update the oat file on disk if we can, based on the --compiler-filter 57701be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler // option derived from the current runtime options. 57801be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler // This may fail, but that's okay. Best effort is all that matters here. 57901be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler switch (oat_file_assistant.MakeUpToDate(/*out*/ &error_msg)) { 58001be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler case OatFileAssistant::kUpdateFailed: 58101be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler LOG(WARNING) << error_msg; 58201be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler break; 58301be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler 58401be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler case OatFileAssistant::kUpdateNotAttempted: 58501be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler // Avoid spamming the logs if we decided not to attempt making the oat 58601be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler // file up to date. 58701be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler VLOG(oat) << error_msg; 58801be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler break; 58901be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler 59001be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler case OatFileAssistant::kUpdateSucceeded: 59101be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler // Nothing to do. 59201be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler break; 59301be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler } 594f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 595f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 596f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Get the oat file on disk. 597f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier std::unique_ptr<const OatFile> oat_file(oat_file_assistant.GetBestOatFile().release()); 598fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier 599f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (oat_file != nullptr) { 600f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Take the file only if it has no collisions, or we must take it because of preopting. 601f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao bool accept_oat_file = 602f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao !HasCollisions(oat_file.get(), class_loader, dex_elements, /*out*/ &error_msg); 603f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (!accept_oat_file) { 604f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Failed the collision check. Print warning. 605f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (Runtime::Current()->IsDexFileFallbackEnabled()) { 606f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier LOG(WARNING) << "Found duplicate classes, falling back to interpreter mode for " 607f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier << dex_location; 608f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } else { 609f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier LOG(WARNING) << "Found duplicate classes, dex-file-fallback disabled, will be failing to " 610f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier " load classes for " << dex_location; 611f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 612f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier LOG(WARNING) << error_msg; 613f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 614f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // However, if the app was part of /system and preopted, there is no original dex file 615f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // available. In that case grudgingly accept the oat file. 61676f5cb6026b9c83bf00fd1007703503a327f704dRichard Uhler if (!oat_file_assistant.HasOriginalDexFiles()) { 617f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier accept_oat_file = true; 618f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier LOG(WARNING) << "Dex location " << dex_location << " does not seem to include dex file. " 619f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier << "Allow oat file use. This is potentially dangerous."; 620f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 621f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 622f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 623f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (accept_oat_file) { 624f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier VLOG(class_linker) << "Registering " << oat_file->GetLocation(); 625f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier source_oat_file = RegisterOatFile(std::move(oat_file)); 626e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier *out_oat_file = source_oat_file; 627f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 628f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 629f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 630f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier std::vector<std::unique_ptr<const DexFile>> dex_files; 631f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 632f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Load the dex files from the oat file. 633f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (source_oat_file != nullptr) { 634fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier bool added_image_space = false; 635fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier if (source_oat_file->IsExecutable()) { 636fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier std::unique_ptr<gc::space::ImageSpace> image_space( 637fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier kEnableAppImage ? oat_file_assistant.OpenImageSpace(source_oat_file) : nullptr); 638fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier if (image_space != nullptr) { 639fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier ScopedObjectAccess soa(self); 640fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier StackHandleScope<1> hs(self); 641fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier Handle<mirror::ClassLoader> h_loader( 642fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier hs.NewHandle(soa.Decode<mirror::ClassLoader*>(class_loader))); 643fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier // Can not load app image without class loader. 644fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier if (h_loader.Get() != nullptr) { 645fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier std::string temp_error_msg; 646fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier // Add image space has a race condition since other threads could be reading from the 647fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier // spaces array. 648a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier { 649a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier ScopedThreadSuspension sts(self, kSuspended); 65061d2b2d353ba4ab952247d2bff2c905598118bb4Mathieu Chartier gc::ScopedGCCriticalSection gcs(self, 65161d2b2d353ba4ab952247d2bff2c905598118bb4Mathieu Chartier gc::kGcCauseAddRemoveAppImageSpace, 65261d2b2d353ba4ab952247d2bff2c905598118bb4Mathieu Chartier gc::kCollectorTypeAddRemoveAppImageSpace); 653a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier ScopedSuspendAll ssa("Add image space"); 654a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier runtime->GetHeap()->AddSpace(image_space.get()); 655a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier } 65632ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier { 65732ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier ScopedTrace trace2(StringPrintf("Adding image space for location %s", dex_location)); 65832ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier added_image_space = runtime->GetClassLinker()->AddImageSpace(image_space.get(), 65932ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier h_loader, 66032ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier dex_elements, 66132ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier dex_location, 66232ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier /*out*/&dex_files, 66332ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier /*out*/&temp_error_msg); 66432ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier } 665a6e81ed4c185b7362cd5199ebe5507d00883a9b0Mathieu Chartier if (added_image_space) { 666bd064ea2269b23360e32e8139c22d5993ddc385bMathieu Chartier // Successfully added image space to heap, release the map so that it does not get 667bd064ea2269b23360e32e8139c22d5993ddc385bMathieu Chartier // freed. 668bd064ea2269b23360e32e8139c22d5993ddc385bMathieu Chartier image_space.release(); 669bd064ea2269b23360e32e8139c22d5993ddc385bMathieu Chartier } else { 670fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier LOG(INFO) << "Failed to add image file " << temp_error_msg; 671fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier dex_files.clear(); 672a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier { 673a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier ScopedThreadSuspension sts(self, kSuspended); 67461d2b2d353ba4ab952247d2bff2c905598118bb4Mathieu Chartier gc::ScopedGCCriticalSection gcs(self, 67561d2b2d353ba4ab952247d2bff2c905598118bb4Mathieu Chartier gc::kGcCauseAddRemoveAppImageSpace, 67661d2b2d353ba4ab952247d2bff2c905598118bb4Mathieu Chartier gc::kCollectorTypeAddRemoveAppImageSpace); 677a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier ScopedSuspendAll ssa("Remove image space"); 678a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier runtime->GetHeap()->RemoveSpace(image_space.get()); 679a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier } 680fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier // Non-fatal, don't update error_msg. 681fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier } 682fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier } 683fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier } 684fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier } 685fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier if (!added_image_space) { 686fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier DCHECK(dex_files.empty()); 687fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier dex_files = oat_file_assistant.LoadDexFiles(*source_oat_file, dex_location); 688fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier } 689f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (dex_files.empty()) { 690f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier error_msgs->push_back("Failed to open dex files from " + source_oat_file->GetLocation()); 691f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 692f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 693f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 694f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Fall back to running out of the original dex file if we couldn't load any 695f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // dex_files from the oat file. 696f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (dex_files.empty()) { 697f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (oat_file_assistant.HasOriginalDexFiles()) { 698f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (Runtime::Current()->IsDexFileFallbackEnabled()) { 699f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (!DexFile::Open(dex_location, dex_location, /*out*/ &error_msg, &dex_files)) { 700f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier LOG(WARNING) << error_msg; 7013045b66613404fa973aafc8c2aae3728e9c12d9aAlex Light error_msgs->push_back("Failed to open dex files from " + std::string(dex_location) 7023045b66613404fa973aafc8c2aae3728e9c12d9aAlex Light + " because: " + error_msg); 703f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 704f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } else { 705f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier error_msgs->push_back("Fallback mode disabled, skipping dex files."); 706f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 707f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } else { 708f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier error_msgs->push_back("No original dex files found for dex location " 709f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier + std::string(dex_location)); 710f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 711f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 712c90bc92bc577020ff4d3caced4cee1cdf41fa5deCalin Juravle 713c90bc92bc577020ff4d3caced4cee1cdf41fa5deCalin Juravle // TODO(calin): Consider optimizing this knowing that is useless to record the 714c90bc92bc577020ff4d3caced4cee1cdf41fa5deCalin Juravle // use of fully compiled apks. 715c90bc92bc577020ff4d3caced4cee1cdf41fa5deCalin Juravle Runtime::Current()->NotifyDexLoaded(dex_location); 716f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return dex_files; 717f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 718f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 71904680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffrayvoid OatFileManager::DumpForSigQuit(std::ostream& os) { 72004680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffray ReaderMutexLock mu(Thread::Current(), *Locks::oat_file_manager_lock_); 72104680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffray std::vector<const OatFile*> boot_oat_files = GetBootOatFiles(); 72204680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffray for (const std::unique_ptr<const OatFile>& oat_file : oat_files_) { 72304680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffray if (ContainsElement(boot_oat_files, oat_file.get())) { 72404680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffray continue; 72504680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffray } 72629d38e77c553c6cf71fc4dafe2d22b4e3f814872Andreas Gampe os << oat_file->GetLocation() << ": " << oat_file->GetCompilerFilter() << "\n"; 72704680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffray } 72804680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffray} 72904680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffray 730f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} // namespace art 731