oat_file_manager.cc revision ca620d7bc03b23a0bcf0ef58df58603ee000dca0
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" 333398c7874e002beaa6c2b2fadf183e7d1ddad23aMathieu Chartier#include "obj_ptr-inl.h" 340795f23920ee9aabf28e45c63cd592dcccf00216Mathieu Chartier#include "scoped_thread_state_change-inl.h" 35f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier#include "thread-inl.h" 36a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier#include "thread_list.h" 37f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 38f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartiernamespace art { 39f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 40fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier// If true, then we attempt to load the application image if it exists. 41fbc31087932a65e036a153afab3049dc5298656aMathieu Chartierstatic constexpr bool kEnableAppImage = true; 42fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier 43f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartierconst OatFile* OatFileManager::RegisterOatFile(std::unique_ptr<const OatFile> oat_file) { 44e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier WriterMutexLock mu(Thread::Current(), *Locks::oat_file_manager_lock_); 45f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier DCHECK(oat_file != nullptr); 46f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (kIsDebugBuild) { 47e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier CHECK(oat_files_.find(oat_file) == oat_files_.end()); 48f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier for (const std::unique_ptr<const OatFile>& existing : oat_files_) { 49f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier CHECK_NE(oat_file.get(), existing.get()) << oat_file->GetLocation(); 50f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Check that we don't have an oat file with the same address. Copies of the same oat file 51f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // should be loaded at different addresses. 52f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier CHECK_NE(oat_file->Begin(), existing->Begin()) << "Oat file already mapped at that location"; 53f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 54f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 55f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier have_non_pic_oat_file_ = have_non_pic_oat_file_ || !oat_file->IsPic(); 56e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier const OatFile* ret = oat_file.get(); 57e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier oat_files_.insert(std::move(oat_file)); 58e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier return ret; 59e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier} 60e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier 61e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartiervoid OatFileManager::UnRegisterAndDeleteOatFile(const OatFile* oat_file) { 62e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier WriterMutexLock mu(Thread::Current(), *Locks::oat_file_manager_lock_); 63e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier DCHECK(oat_file != nullptr); 64e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier std::unique_ptr<const OatFile> compare(oat_file); 65e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier auto it = oat_files_.find(compare); 66e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier CHECK(it != oat_files_.end()); 67e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier oat_files_.erase(it); 68e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier compare.release(); 69f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 70f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 710b791279f67b0f4b72db991707b16b737871bcdeCalin Juravleconst OatFile* OatFileManager::FindOpenedOatFileFromDexLocation( 720b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle const std::string& dex_base_location) const { 730b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle ReaderMutexLock mu(Thread::Current(), *Locks::oat_file_manager_lock_); 740b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle for (const std::unique_ptr<const OatFile>& oat_file : oat_files_) { 750b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle const std::vector<const OatDexFile*>& oat_dex_files = oat_file->GetOatDexFiles(); 760b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle for (const OatDexFile* oat_dex_file : oat_dex_files) { 770b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle if (DexFile::GetBaseLocation(oat_dex_file->GetDexFileLocation()) == dex_base_location) { 780b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle return oat_file.get(); 790b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle } 800b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle } 810b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle } 820b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle return nullptr; 830b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle} 840b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle 85f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartierconst OatFile* OatFileManager::FindOpenedOatFileFromOatLocation(const std::string& oat_location) 86f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier const { 87f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier ReaderMutexLock mu(Thread::Current(), *Locks::oat_file_manager_lock_); 88e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier return FindOpenedOatFileFromOatLocationLocked(oat_location); 89e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier} 90e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier 91e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartierconst OatFile* OatFileManager::FindOpenedOatFileFromOatLocationLocked( 92e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier const std::string& oat_location) const { 93f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier for (const std::unique_ptr<const OatFile>& oat_file : oat_files_) { 94f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (oat_file->GetLocation() == oat_location) { 95f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return oat_file.get(); 96f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 97f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 98f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return nullptr; 99f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 100f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 101dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Haostd::vector<const OatFile*> OatFileManager::GetBootOatFiles() const { 102dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao std::vector<const OatFile*> oat_files; 103dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao std::vector<gc::space::ImageSpace*> image_spaces = 104dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao Runtime::Current()->GetHeap()->GetBootImageSpaces(); 105dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao for (gc::space::ImageSpace* image_space : image_spaces) { 106dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao oat_files.push_back(image_space->GetOatFile()); 107dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao } 108dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao return oat_files; 109f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 110f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 111f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartierconst OatFile* OatFileManager::GetPrimaryOatFile() const { 112f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier ReaderMutexLock mu(Thread::Current(), *Locks::oat_file_manager_lock_); 113dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao std::vector<const OatFile*> boot_oat_files = GetBootOatFiles(); 114dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao if (!boot_oat_files.empty()) { 115f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier for (const std::unique_ptr<const OatFile>& oat_file : oat_files_) { 116dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao if (std::find(boot_oat_files.begin(), boot_oat_files.end(), oat_file.get()) == 117dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao boot_oat_files.end()) { 118f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return oat_file.get(); 119f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 120f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 121f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 122f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return nullptr; 123f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 124f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 125f9c6fc610b27887f832e453a0da1789187293408Mathieu ChartierOatFileManager::~OatFileManager() { 126e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier // Explicitly clear oat_files_ since the OatFile destructor calls back into OatFileManager for 127e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier // UnRegisterOatFileLocation. 128e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier oat_files_.clear(); 129f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 130f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 131dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Haostd::vector<const OatFile*> OatFileManager::RegisterImageOatFiles( 132dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao std::vector<gc::space::ImageSpace*> spaces) { 133dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao std::vector<const OatFile*> oat_files; 134dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao for (gc::space::ImageSpace* space : spaces) { 135dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao oat_files.push_back(RegisterOatFile(space->ReleaseOatFile())); 136dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao } 137dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao return oat_files; 138f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 139f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 140f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartierclass DexFileAndClassPair : ValueObject { 141f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier public: 142f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier DexFileAndClassPair(const DexFile* dex_file, size_t current_class_index, bool from_loaded_oat) 143f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier : cached_descriptor_(GetClassDescriptor(dex_file, current_class_index)), 144f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier dex_file_(dex_file), 145f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier current_class_index_(current_class_index), 146f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier from_loaded_oat_(from_loaded_oat) {} 147f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 14880b37b7e679a530738c9bcbd39873b6dacf177e5Mathieu Chartier DexFileAndClassPair(const DexFileAndClassPair& rhs) = default; 149f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 15080b37b7e679a530738c9bcbd39873b6dacf177e5Mathieu Chartier DexFileAndClassPair& operator=(const DexFileAndClassPair& rhs) = default; 151f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 152f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier const char* GetCachedDescriptor() const { 153f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return cached_descriptor_; 154f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 155f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 156f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier bool operator<(const DexFileAndClassPair& rhs) const { 157f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier const int cmp = strcmp(cached_descriptor_, rhs.cached_descriptor_); 158f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (cmp != 0) { 159f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Note that the order must be reversed. We want to iterate over the classes in dex files. 160f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // They are sorted lexicographically. Thus, the priority-queue must be a min-queue. 161f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return cmp > 0; 162f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 163f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return dex_file_ < rhs.dex_file_; 164f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 165f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 166f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier bool DexFileHasMoreClasses() const { 167f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return current_class_index_ + 1 < dex_file_->NumClassDefs(); 168f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 169f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 170f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier void Next() { 171f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier ++current_class_index_; 172f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao cached_descriptor_ = GetClassDescriptor(dex_file_, current_class_index_); 173f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 174f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 175f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier size_t GetCurrentClassIndex() const { 176f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return current_class_index_; 177f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 178f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 179f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier bool FromLoadedOat() const { 180f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return from_loaded_oat_; 181f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 182f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 183f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier const DexFile* GetDexFile() const { 184f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return dex_file_; 185f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 186f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 187f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier private: 188f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier static const char* GetClassDescriptor(const DexFile* dex_file, size_t index) { 189f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier DCHECK(IsUint<16>(index)); 190f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier const DexFile::ClassDef& class_def = dex_file->GetClassDef(static_cast<uint16_t>(index)); 191f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return dex_file->StringByTypeIdx(class_def.class_idx_); 192f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 193f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 194f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier const char* cached_descriptor_; 195f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao const DexFile* dex_file_; 196f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier size_t current_class_index_; 197f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier bool from_loaded_oat_; // We only need to compare mismatches between what we load now 198f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // and what was loaded before. Any old duplicates must have been 199f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // OK, and any new "internal" duplicates are as well (they must 200f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // be from multidex, which resolves correctly). 201f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier}; 202f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 203f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartierstatic void AddDexFilesFromOat(const OatFile* oat_file, 204f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier bool already_loaded, 20514d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier /*out*/std::priority_queue<DexFileAndClassPair>* heap, 20614d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier std::vector<std::unique_ptr<const DexFile>>* opened_dex_files) { 207f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier for (const OatDexFile* oat_dex_file : oat_file->GetOatDexFiles()) { 208f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier std::string error; 209f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier std::unique_ptr<const DexFile> dex_file = oat_dex_file->OpenDexFile(&error); 210f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (dex_file == nullptr) { 211f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier LOG(WARNING) << "Could not create dex file from oat file: " << error; 212f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } else if (dex_file->NumClassDefs() > 0U) { 21314d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier heap->emplace(dex_file.get(), /*current_class_index*/0U, already_loaded); 21414d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier opened_dex_files->push_back(std::move(dex_file)); 215f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 216f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 217f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 218f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 219f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartierstatic void AddNext(/*inout*/DexFileAndClassPair* original, 22014d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier /*inout*/std::priority_queue<DexFileAndClassPair>* heap) { 221f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (original->DexFileHasMoreClasses()) { 222f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier original->Next(); 223f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier heap->push(std::move(*original)); 224f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 225f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao} 226f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 227ca620d7bc03b23a0bcf0ef58df58603ee000dca0Andreas Gampetemplate <typename T> 2283398c7874e002beaa6c2b2fadf183e7d1ddad23aMathieu Chartierstatic void IterateOverJavaDexFile(ObjPtr<mirror::Object> dex_file, 229f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao ArtField* const cookie_field, 230ca620d7bc03b23a0bcf0ef58df58603ee000dca0Andreas Gampe const T& fn) 231bdf7f1c3ab65ccb70f62db5ab31dba060632d458Andreas Gampe REQUIRES_SHARED(Locks::mutator_lock_) { 232f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (dex_file != nullptr) { 233f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao mirror::LongArray* long_array = cookie_field->GetObject(dex_file)->AsLongArray(); 234f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (long_array == nullptr) { 235f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // This should never happen so log a warning. 236f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao LOG(WARNING) << "Null DexFile::mCookie"; 237f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return; 238f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 239f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao int32_t long_array_size = long_array->GetLength(); 240f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Start from 1 to skip the oat file. 241f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao for (int32_t j = 1; j < long_array_size; ++j) { 242f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao const DexFile* cp_dex_file = reinterpret_cast<const DexFile*>(static_cast<uintptr_t>( 243f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao long_array->GetWithoutChecks(j))); 244f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (!fn(cp_dex_file)) { 245f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return; 246f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 247f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 248f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 249f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao} 250f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 251ca620d7bc03b23a0bcf0ef58df58603ee000dca0Andreas Gampetemplate <typename T> 252f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Haostatic void IterateOverPathClassLoader( 253f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao ScopedObjectAccessAlreadyRunnable& soa, 254f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao Handle<mirror::ClassLoader> class_loader, 255f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao MutableHandle<mirror::ObjectArray<mirror::Object>> dex_elements, 256ca620d7bc03b23a0bcf0ef58df58603ee000dca0Andreas Gampe const T& fn) REQUIRES_SHARED(Locks::mutator_lock_) { 257f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Handle this step. 258f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Handle as if this is the child PathClassLoader. 259f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // The class loader is a PathClassLoader which inherits from BaseDexClassLoader. 260f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // We need to get the DexPathList and loop through it. 261f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao ArtField* const cookie_field = soa.DecodeField(WellKnownClasses::dalvik_system_DexFile_cookie); 262f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao ArtField* const dex_file_field = 263f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao soa.DecodeField(WellKnownClasses::dalvik_system_DexPathList__Element_dexFile); 2643398c7874e002beaa6c2b2fadf183e7d1ddad23aMathieu Chartier ObjPtr<mirror::Object> dex_path_list = 26546aba36a1c982567d7e80a62b0cff9c0935e7455Andreas Gampe soa.DecodeField(WellKnownClasses::dalvik_system_BaseDexClassLoader_pathList)-> 266f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao GetObject(class_loader.Get()); 267f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (dex_path_list != nullptr && dex_file_field != nullptr && cookie_field != nullptr) { 268f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // DexPathList has an array dexElements of Elements[] which each contain a dex file. 2693398c7874e002beaa6c2b2fadf183e7d1ddad23aMathieu Chartier ObjPtr<mirror::Object> dex_elements_obj = 270f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao soa.DecodeField(WellKnownClasses::dalvik_system_DexPathList_dexElements)-> 271f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao GetObject(dex_path_list); 272f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Loop through each dalvik.system.DexPathList$Element's dalvik.system.DexFile and look 273f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // at the mCookie which is a DexFile vector. 274f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (dex_elements_obj != nullptr) { 275f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao dex_elements.Assign(dex_elements_obj->AsObjectArray<mirror::Object>()); 276f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao for (int32_t i = 0; i < dex_elements->GetLength(); ++i) { 277f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao mirror::Object* element = dex_elements->GetWithoutChecks(i); 278f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (element == nullptr) { 279f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Should never happen, fall back to java code to throw a NPE. 280f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao break; 281f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 2823398c7874e002beaa6c2b2fadf183e7d1ddad23aMathieu Chartier ObjPtr<mirror::Object> dex_file = dex_file_field->GetObject(element); 283f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao IterateOverJavaDexFile(dex_file, cookie_field, fn); 284f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 285f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 286f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 287f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 288f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 289f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Haostatic bool GetDexFilesFromClassLoader( 290f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao ScopedObjectAccessAlreadyRunnable& soa, 291f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao mirror::ClassLoader* class_loader, 292bdf7f1c3ab65ccb70f62db5ab31dba060632d458Andreas Gampe std::priority_queue<DexFileAndClassPair>* queue) REQUIRES_SHARED(Locks::mutator_lock_) { 293f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (ClassLinker::IsBootClassLoader(soa, class_loader)) { 294f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // The boot class loader. We don't load any of these files, as we know we compiled against 295f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // them correctly. 296f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return true; 297f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 298f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 299f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Unsupported class-loader? 3000795f23920ee9aabf28e45c63cd592dcccf00216Mathieu Chartier if (soa.Decode<mirror::Class>(WellKnownClasses::dalvik_system_PathClassLoader) != 3010795f23920ee9aabf28e45c63cd592dcccf00216Mathieu Chartier class_loader->GetClass()) { 302709b070044354d9f47641f273edacaeeb0240ab7David Sehr VLOG(class_linker) << "Unsupported class-loader " 303709b070044354d9f47641f273edacaeeb0240ab7David Sehr << mirror::Class::PrettyClass(class_loader->GetClass()); 304f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return false; 305f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 306f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 307f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao bool recursive_result = GetDexFilesFromClassLoader(soa, class_loader->GetParent(), queue); 308f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (!recursive_result) { 309f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Something wrong up the chain. 310f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return false; 311f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 312f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 313f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Collect all the dex files. 314f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao auto GetDexFilesFn = [&] (const DexFile* cp_dex_file) 315bdf7f1c3ab65ccb70f62db5ab31dba060632d458Andreas Gampe REQUIRES_SHARED(Locks::mutator_lock_) { 316f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (cp_dex_file->NumClassDefs() > 0) { 317f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao queue->emplace(cp_dex_file, 0U, true); 318f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 319f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return true; // Continue looking. 320f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao }; 321f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 322f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Handle for dex-cache-element. 323f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao StackHandleScope<3> hs(soa.Self()); 324f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao MutableHandle<mirror::ObjectArray<mirror::Object>> dex_elements( 325f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao hs.NewHandle<mirror::ObjectArray<mirror::Object>>(nullptr)); 326f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao Handle<mirror::ClassLoader> h_class_loader(hs.NewHandle(class_loader)); 327f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 328f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao IterateOverPathClassLoader(soa, h_class_loader, dex_elements, GetDexFilesFn); 329f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 330f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return true; 331f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao} 332f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 333f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Haostatic void GetDexFilesFromDexElementsArray( 334f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao ScopedObjectAccessAlreadyRunnable& soa, 335f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao Handle<mirror::ObjectArray<mirror::Object>> dex_elements, 336bdf7f1c3ab65ccb70f62db5ab31dba060632d458Andreas Gampe std::priority_queue<DexFileAndClassPair>* queue) REQUIRES_SHARED(Locks::mutator_lock_) { 337f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (dex_elements.Get() == nullptr) { 338f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Nothing to do. 339f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return; 340f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 341f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 342f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao ArtField* const cookie_field = soa.DecodeField(WellKnownClasses::dalvik_system_DexFile_cookie); 343f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao ArtField* const dex_file_field = 344f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao soa.DecodeField(WellKnownClasses::dalvik_system_DexPathList__Element_dexFile); 3450795f23920ee9aabf28e45c63cd592dcccf00216Mathieu Chartier ObjPtr<mirror::Class> const element_class = soa.Decode<mirror::Class>( 346f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao WellKnownClasses::dalvik_system_DexPathList__Element); 3470795f23920ee9aabf28e45c63cd592dcccf00216Mathieu Chartier ObjPtr<mirror::Class> const dexfile_class = soa.Decode<mirror::Class>( 3480795f23920ee9aabf28e45c63cd592dcccf00216Mathieu Chartier WellKnownClasses::dalvik_system_DexFile); 349f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 350f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Collect all the dex files. 351f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao auto GetDexFilesFn = [&] (const DexFile* cp_dex_file) 352bdf7f1c3ab65ccb70f62db5ab31dba060632d458Andreas Gampe REQUIRES_SHARED(Locks::mutator_lock_) { 353f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (cp_dex_file != nullptr && cp_dex_file->NumClassDefs() > 0) { 354f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao queue->emplace(cp_dex_file, 0U, true); 355f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 356f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return true; // Continue looking. 357f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao }; 358f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 359f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao for (int32_t i = 0; i < dex_elements->GetLength(); ++i) { 360f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao mirror::Object* element = dex_elements->GetWithoutChecks(i); 361f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (element == nullptr) { 362f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao continue; 363f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 364f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 365f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // We support this being dalvik.system.DexPathList$Element and dalvik.system.DexFile. 366f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 3673398c7874e002beaa6c2b2fadf183e7d1ddad23aMathieu Chartier ObjPtr<mirror::Object> dex_file; 3680795f23920ee9aabf28e45c63cd592dcccf00216Mathieu Chartier if (element_class == element->GetClass()) { 369f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao dex_file = dex_file_field->GetObject(element); 3700795f23920ee9aabf28e45c63cd592dcccf00216Mathieu Chartier } else if (dexfile_class == element->GetClass()) { 371f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao dex_file = element; 372f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } else { 373709b070044354d9f47641f273edacaeeb0240ab7David Sehr LOG(WARNING) << "Unsupported element in dex_elements: " 374709b070044354d9f47641f273edacaeeb0240ab7David Sehr << mirror::Class::PrettyClass(element->GetClass()); 375f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao continue; 376f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 377f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 378f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao IterateOverJavaDexFile(dex_file, cookie_field, GetDexFilesFn); 379f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 380f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao} 381f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 3825c657fe8e3afdce77dc610446f37a43865cff702Vladimir Markostatic bool AreSharedLibrariesOk(const std::string& shared_libraries, 383f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao std::priority_queue<DexFileAndClassPair>& queue) { 384f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (shared_libraries.empty()) { 385f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (queue.empty()) { 386f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // No shared libraries or oat files, as expected. 387f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return true; 388f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 389f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } else { 390f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (shared_libraries.compare(OatFile::kSpecialSharedLibrary) == 0) { 391f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // If we find the special shared library, skip the shared libraries check. 392f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return true; 393f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 394f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Shared libraries is a series of dex file paths and their checksums, each separated by '*'. 395f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao std::vector<std::string> shared_libraries_split; 396f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao Split(shared_libraries, '*', &shared_libraries_split); 397f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 398f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao size_t index = 0; 399f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao std::priority_queue<DexFileAndClassPair> temp = queue; 400f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao while (!temp.empty() && index < shared_libraries_split.size() - 1) { 401f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao DexFileAndClassPair pair(temp.top()); 402f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao const DexFile* dex_file = pair.GetDexFile(); 4034c481a4245aebe6821914237249f11d03e687bf9Andreas Gampe const std::string& dex_filename = dex_file->GetLocation(); 404f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao uint32_t dex_checksum = dex_file->GetLocationChecksum(); 405f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (dex_filename != shared_libraries_split[index] || 406f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao dex_checksum != std::stoul(shared_libraries_split[index + 1])) { 407f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao break; 408f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 409f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao temp.pop(); 410f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao index += 2; 411f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 412f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 413f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Check is successful if it made it through the queue and all the shared libraries. 414f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return temp.empty() && index == shared_libraries_split.size(); 415f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 416f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return false; 417f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao} 418f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 419f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier// Check for class-def collisions in dex files. 420f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier// 421f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao// This first walks the class loader chain, getting all the dex files from the class loader. If 422f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao// the class loader is null or one of the class loaders in the chain is unsupported, we collect 423f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao// dex files from all open non-boot oat files to be safe. 424f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao// 425f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao// This first checks whether the shared libraries are in the expected order and the oat files 426f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao// have the expected checksums. If so, we exit early. Otherwise, we do the collision check. 427f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao// 428f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao// The collision check works by maintaining a heap with one class from each dex file, sorted by the 429f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao// class descriptor. Then a dex-file/class pair is continually removed from the heap and compared 430f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier// against the following top element. If the descriptor is the same, it is now checked whether 431f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier// the two elements agree on whether their dex file was from an already-loaded oat-file or the 432f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier// new oat file. Any disagreement indicates a collision. 433f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartierbool OatFileManager::HasCollisions(const OatFile* oat_file, 434f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao jobject class_loader, 435f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao jobjectArray dex_elements, 436f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier std::string* error_msg /*out*/) const { 437f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier DCHECK(oat_file != nullptr); 438f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier DCHECK(error_msg != nullptr); 439f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 440f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao std::priority_queue<DexFileAndClassPair> queue; 441f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 442f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Try to get dex files from the given class loader. If the class loader is null, or we do 443f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // not support one of the class loaders in the chain, conservatively compare against all 444f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // (non-boot) oat files. 445f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao bool class_loader_ok = false; 446f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao { 447f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao ScopedObjectAccess soa(Thread::Current()); 448f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao StackHandleScope<2> hs(Thread::Current()); 449f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao Handle<mirror::ClassLoader> h_class_loader = 4500795f23920ee9aabf28e45c63cd592dcccf00216Mathieu Chartier hs.NewHandle(soa.Decode<mirror::ClassLoader>(class_loader)); 451f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao Handle<mirror::ObjectArray<mirror::Object>> h_dex_elements = 4520795f23920ee9aabf28e45c63cd592dcccf00216Mathieu Chartier hs.NewHandle(soa.Decode<mirror::ObjectArray<mirror::Object>>(dex_elements)); 453f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (h_class_loader.Get() != nullptr && 454f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao GetDexFilesFromClassLoader(soa, h_class_loader.Get(), &queue)) { 455f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao class_loader_ok = true; 456f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 457f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // In this case, also take into account the dex_elements array, if given. We don't need to 458f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // read it otherwise, as we'll compare against all open oat files anyways. 459f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao GetDexFilesFromDexElementsArray(soa, h_dex_elements, &queue); 460f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } else if (h_class_loader.Get() != nullptr) { 461f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao VLOG(class_linker) << "Something unsupported with " 462709b070044354d9f47641f273edacaeeb0240ab7David Sehr << mirror::Class::PrettyClass(h_class_loader->GetClass()); 463f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 464f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 465f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 466f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Dex files are registered late - once a class is actually being loaded. We have to compare 467f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // against the open oat files. Take the oat_file_manager_lock_ that protects oat_files_ accesses. 468f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier ReaderMutexLock mu(Thread::Current(), *Locks::oat_file_manager_lock_); 469f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 47014d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier // Vector that holds the newly opened dex files live, this is done to prevent leaks. 47114d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier std::vector<std::unique_ptr<const DexFile>> opened_dex_files; 47214d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier 473f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (!class_loader_ok) { 474f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Add dex files from already loaded oat files, but skip boot. 475f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 476f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Clean up the queue. 477f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao while (!queue.empty()) { 478f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao queue.pop(); 479f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 480f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 481f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao std::vector<const OatFile*> boot_oat_files = GetBootOatFiles(); 482f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // The same OatFile can be loaded multiple times at different addresses. In this case, we don't 483f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // need to check both against each other since they would have resolved the same way at compile 484f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // time. 485f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao std::unordered_set<std::string> unique_locations; 486f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao for (const std::unique_ptr<const OatFile>& loaded_oat_file : oat_files_) { 487f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao DCHECK_NE(loaded_oat_file.get(), oat_file); 488f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao const std::string& location = loaded_oat_file->GetLocation(); 489f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (std::find(boot_oat_files.begin(), boot_oat_files.end(), loaded_oat_file.get()) == 490f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao boot_oat_files.end() && location != oat_file->GetLocation() && 491f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao unique_locations.find(location) == unique_locations.end()) { 492f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao unique_locations.insert(location); 49314d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier AddDexFilesFromOat(loaded_oat_file.get(), 49414d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier /*already_loaded*/true, 49514d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier &queue, 49614d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier /*out*/&opened_dex_files); 497f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 498f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 499f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 500f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 501f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Exit if shared libraries are ok. Do a full duplicate classes check otherwise. 502f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao const std::string 503f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao shared_libraries(oat_file->GetOatHeader().GetStoreValueByKey(OatHeader::kClassPathKey)); 504f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (AreSharedLibrariesOk(shared_libraries, queue)) { 505f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return false; 506f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 507f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 5081fdbe1b034d97b852551d24e70245df64f03ebebAndreas Gampe ScopedTrace st("Collision check"); 5091fdbe1b034d97b852551d24e70245df64f03ebebAndreas Gampe 510f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Add dex files from the oat file to check. 51114d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier AddDexFilesFromOat(oat_file, /*already_loaded*/false, &queue, &opened_dex_files); 512f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 513f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Now drain the queue. 514f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier while (!queue.empty()) { 515f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Modifying the top element is only safe if we pop right after. 51680b37b7e679a530738c9bcbd39873b6dacf177e5Mathieu Chartier DexFileAndClassPair compare_pop(queue.top()); 517f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier queue.pop(); 518f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 519f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Compare against the following elements. 520f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier while (!queue.empty()) { 52180b37b7e679a530738c9bcbd39873b6dacf177e5Mathieu Chartier DexFileAndClassPair top(queue.top()); 522f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 523f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (strcmp(compare_pop.GetCachedDescriptor(), top.GetCachedDescriptor()) == 0) { 524f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Same descriptor. Check whether it's crossing old-oat-files to new-oat-files. 525f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (compare_pop.FromLoadedOat() != top.FromLoadedOat()) { 526f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier *error_msg = 527f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier StringPrintf("Found duplicated class when checking oat files: '%s' in %s and %s", 528f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier compare_pop.GetCachedDescriptor(), 529f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier compare_pop.GetDexFile()->GetLocation().c_str(), 530f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier top.GetDexFile()->GetLocation().c_str()); 531f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return true; 532f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 533f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier queue.pop(); 53414d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier AddNext(&top, &queue); 535f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } else { 536f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Something else. Done here. 537f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier break; 538f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 539f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 54014d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier AddNext(&compare_pop, &queue); 541f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 542f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 543f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return false; 544f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 545f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 546f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartierstd::vector<std::unique_ptr<const DexFile>> OatFileManager::OpenDexFilesFromOat( 547f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier const char* dex_location, 548f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier const char* oat_location, 549fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier jobject class_loader, 550fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier jobjectArray dex_elements, 551e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier const OatFile** out_oat_file, 552f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier std::vector<std::string>* error_msgs) { 55332ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier ScopedTrace trace(__FUNCTION__); 554f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier CHECK(dex_location != nullptr); 555f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier CHECK(error_msgs != nullptr); 556f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 557f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Verify we aren't holding the mutator lock, which could starve GC if we 558f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // have to generate or relocate an oat file. 559fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier Thread* const self = Thread::Current(); 560fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier Locks::mutator_lock_->AssertNotHeld(self); 561fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier Runtime* const runtime = Runtime::Current(); 562b077e15d2d11b7c81aacbcd4a46c2b1e9c9ba20dCalin Juravle 563f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier OatFileAssistant oat_file_assistant(dex_location, 564f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier oat_location, 565f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier kRuntimeISA, 566fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier !runtime->IsAotCompiler()); 567f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 568f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Lock the target oat location to avoid races generating and loading the 569f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // oat file. 570f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier std::string error_msg; 571f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (!oat_file_assistant.Lock(/*out*/&error_msg)) { 572f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Don't worry too much if this fails. If it does fail, it's unlikely we 573f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // can generate an oat file anyway. 574f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier VLOG(class_linker) << "OatFileAssistant::Lock: " << error_msg; 575f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 576f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 577f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier const OatFile* source_oat_file = nullptr; 578f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 57901be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler if (!oat_file_assistant.IsUpToDate()) { 58001be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler // Update the oat file on disk if we can, based on the --compiler-filter 58101be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler // option derived from the current runtime options. 58201be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler // This may fail, but that's okay. Best effort is all that matters here. 583d1472a27e856ec68ab5a27abaaebe9c61d91d343Richard Uhler switch (oat_file_assistant.MakeUpToDate(/*profile_changed*/false, /*out*/ &error_msg)) { 58401be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler case OatFileAssistant::kUpdateFailed: 58501be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler LOG(WARNING) << error_msg; 58601be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler break; 58701be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler 58801be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler case OatFileAssistant::kUpdateNotAttempted: 58901be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler // Avoid spamming the logs if we decided not to attempt making the oat 59001be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler // file up to date. 59101be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler VLOG(oat) << error_msg; 59201be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler break; 59301be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler 59401be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler case OatFileAssistant::kUpdateSucceeded: 59501be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler // Nothing to do. 59601be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler break; 59701be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler } 598f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 599f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 600f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Get the oat file on disk. 601f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier std::unique_ptr<const OatFile> oat_file(oat_file_assistant.GetBestOatFile().release()); 602fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier 603f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (oat_file != nullptr) { 604f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Take the file only if it has no collisions, or we must take it because of preopting. 605f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao bool accept_oat_file = 606f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao !HasCollisions(oat_file.get(), class_loader, dex_elements, /*out*/ &error_msg); 607f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (!accept_oat_file) { 608f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Failed the collision check. Print warning. 609f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (Runtime::Current()->IsDexFileFallbackEnabled()) { 610f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier LOG(WARNING) << "Found duplicate classes, falling back to interpreter mode for " 611f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier << dex_location; 612f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } else { 613f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier LOG(WARNING) << "Found duplicate classes, dex-file-fallback disabled, will be failing to " 614f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier " load classes for " << dex_location; 615f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 616f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier LOG(WARNING) << error_msg; 617f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 618f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // However, if the app was part of /system and preopted, there is no original dex file 619f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // available. In that case grudgingly accept the oat file. 62076f5cb6026b9c83bf00fd1007703503a327f704dRichard Uhler if (!oat_file_assistant.HasOriginalDexFiles()) { 621f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier accept_oat_file = true; 622f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier LOG(WARNING) << "Dex location " << dex_location << " does not seem to include dex file. " 623f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier << "Allow oat file use. This is potentially dangerous."; 624f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 625f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 626f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 627f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (accept_oat_file) { 628f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier VLOG(class_linker) << "Registering " << oat_file->GetLocation(); 629f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier source_oat_file = RegisterOatFile(std::move(oat_file)); 630e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier *out_oat_file = source_oat_file; 631f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 632f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 633f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 634f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier std::vector<std::unique_ptr<const DexFile>> dex_files; 635f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 636f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Load the dex files from the oat file. 637f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (source_oat_file != nullptr) { 638fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier bool added_image_space = false; 639fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier if (source_oat_file->IsExecutable()) { 640a463b6a920a2a0bf14f9cca20a561b412b9349d1Andreas Gampe std::unique_ptr<gc::space::ImageSpace> image_space = 641a463b6a920a2a0bf14f9cca20a561b412b9349d1Andreas Gampe kEnableAppImage ? oat_file_assistant.OpenImageSpace(source_oat_file) : nullptr; 642fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier if (image_space != nullptr) { 643fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier ScopedObjectAccess soa(self); 644fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier StackHandleScope<1> hs(self); 645fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier Handle<mirror::ClassLoader> h_loader( 6460795f23920ee9aabf28e45c63cd592dcccf00216Mathieu Chartier hs.NewHandle(soa.Decode<mirror::ClassLoader>(class_loader))); 647fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier // Can not load app image without class loader. 648fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier if (h_loader.Get() != nullptr) { 649fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier std::string temp_error_msg; 650fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier // Add image space has a race condition since other threads could be reading from the 651fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier // spaces array. 652a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier { 653a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier ScopedThreadSuspension sts(self, kSuspended); 65461d2b2d353ba4ab952247d2bff2c905598118bb4Mathieu Chartier gc::ScopedGCCriticalSection gcs(self, 65561d2b2d353ba4ab952247d2bff2c905598118bb4Mathieu Chartier gc::kGcCauseAddRemoveAppImageSpace, 65661d2b2d353ba4ab952247d2bff2c905598118bb4Mathieu Chartier gc::kCollectorTypeAddRemoveAppImageSpace); 657a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier ScopedSuspendAll ssa("Add image space"); 658a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier runtime->GetHeap()->AddSpace(image_space.get()); 659a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier } 66032ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier { 66132ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier ScopedTrace trace2(StringPrintf("Adding image space for location %s", dex_location)); 66232ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier added_image_space = runtime->GetClassLinker()->AddImageSpace(image_space.get(), 66332ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier h_loader, 66432ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier dex_elements, 66532ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier dex_location, 66632ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier /*out*/&dex_files, 66732ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier /*out*/&temp_error_msg); 66832ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier } 669a6e81ed4c185b7362cd5199ebe5507d00883a9b0Mathieu Chartier if (added_image_space) { 670bd064ea2269b23360e32e8139c22d5993ddc385bMathieu Chartier // Successfully added image space to heap, release the map so that it does not get 671bd064ea2269b23360e32e8139c22d5993ddc385bMathieu Chartier // freed. 672bd064ea2269b23360e32e8139c22d5993ddc385bMathieu Chartier image_space.release(); 673bd064ea2269b23360e32e8139c22d5993ddc385bMathieu Chartier } else { 674fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier LOG(INFO) << "Failed to add image file " << temp_error_msg; 675fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier dex_files.clear(); 676a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier { 677a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier ScopedThreadSuspension sts(self, kSuspended); 67861d2b2d353ba4ab952247d2bff2c905598118bb4Mathieu Chartier gc::ScopedGCCriticalSection gcs(self, 67961d2b2d353ba4ab952247d2bff2c905598118bb4Mathieu Chartier gc::kGcCauseAddRemoveAppImageSpace, 68061d2b2d353ba4ab952247d2bff2c905598118bb4Mathieu Chartier gc::kCollectorTypeAddRemoveAppImageSpace); 681a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier ScopedSuspendAll ssa("Remove image space"); 682a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier runtime->GetHeap()->RemoveSpace(image_space.get()); 683a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier } 684fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier // Non-fatal, don't update error_msg. 685fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier } 686fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier } 687fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier } 688fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier } 689fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier if (!added_image_space) { 690fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier DCHECK(dex_files.empty()); 691fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier dex_files = oat_file_assistant.LoadDexFiles(*source_oat_file, dex_location); 692fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier } 693f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (dex_files.empty()) { 694f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier error_msgs->push_back("Failed to open dex files from " + source_oat_file->GetLocation()); 695f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 696f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 697f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 698f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Fall back to running out of the original dex file if we couldn't load any 699f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // dex_files from the oat file. 700f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (dex_files.empty()) { 701f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (oat_file_assistant.HasOriginalDexFiles()) { 702f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (Runtime::Current()->IsDexFileFallbackEnabled()) { 70337d6a3bbf5826abb73f872ed0bc4c6ae9553e274Aart Bik static constexpr bool kVerifyChecksum = true; 70437d6a3bbf5826abb73f872ed0bc4c6ae9553e274Aart Bik if (!DexFile::Open( 70537d6a3bbf5826abb73f872ed0bc4c6ae9553e274Aart Bik dex_location, dex_location, kVerifyChecksum, /*out*/ &error_msg, &dex_files)) { 706f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier LOG(WARNING) << error_msg; 7073045b66613404fa973aafc8c2aae3728e9c12d9aAlex Light error_msgs->push_back("Failed to open dex files from " + std::string(dex_location) 7083045b66613404fa973aafc8c2aae3728e9c12d9aAlex Light + " because: " + error_msg); 709f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 710f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } else { 711f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier error_msgs->push_back("Fallback mode disabled, skipping dex files."); 712f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 713f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } else { 714f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier error_msgs->push_back("No original dex files found for dex location " 715f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier + std::string(dex_location)); 716f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 717f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 718c90bc92bc577020ff4d3caced4cee1cdf41fa5deCalin Juravle 719c90bc92bc577020ff4d3caced4cee1cdf41fa5deCalin Juravle // TODO(calin): Consider optimizing this knowing that is useless to record the 720c90bc92bc577020ff4d3caced4cee1cdf41fa5deCalin Juravle // use of fully compiled apks. 721c90bc92bc577020ff4d3caced4cee1cdf41fa5deCalin Juravle Runtime::Current()->NotifyDexLoaded(dex_location); 722f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return dex_files; 723f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 724f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 72504680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffrayvoid OatFileManager::DumpForSigQuit(std::ostream& os) { 72604680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffray ReaderMutexLock mu(Thread::Current(), *Locks::oat_file_manager_lock_); 72704680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffray std::vector<const OatFile*> boot_oat_files = GetBootOatFiles(); 72804680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffray for (const std::unique_ptr<const OatFile>& oat_file : oat_files_) { 72904680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffray if (ContainsElement(boot_oat_files, oat_file.get())) { 73004680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffray continue; 73104680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffray } 73229d38e77c553c6cf71fc4dafe2d22b4e3f814872Andreas Gampe os << oat_file->GetLocation() << ": " << oat_file->GetCompilerFilter() << "\n"; 73304680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffray } 73404680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffray} 73504680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffray 736f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} // namespace art 737