oat_file_manager.cc revision 8ec0a20abae9a1e9a708ee02dd2639351933c028
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 2346ee31b67d7ee1bd085fbc240502053caa3cf8faAndreas Gampe#include "android-base/stringprintf.h" 2446ee31b67d7ee1bd085fbc240502053caa3cf8faAndreas Gampe 2590b936ddda63139ff46a6755c3b83ad6e4ab4ac5Andreas Gampe#include "art_field-inl.h" 268ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao#include "base/bit_vector-inl.h" 27f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier#include "base/logging.h" 28f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier#include "base/stl_util.h" 2932ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier#include "base/systrace.h" 30fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier#include "class_linker.h" 3180b37b7e679a530738c9bcbd39873b6dacf177e5Mathieu Chartier#include "dex_file-inl.h" 3261d2b2d353ba4ab952247d2bff2c905598118bb4Mathieu Chartier#include "gc/scoped_gc_critical_section.h" 33f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier#include "gc/space/image_space.h" 34fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier#include "handle_scope-inl.h" 3508883debd927d18c9ecf66683a2a11aa98165656Andreas Gampe#include "jni_internal.h" 36fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier#include "mirror/class_loader.h" 3790b936ddda63139ff46a6755c3b83ad6e4ab4ac5Andreas Gampe#include "mirror/object-inl.h" 38f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier#include "oat_file_assistant.h" 393398c7874e002beaa6c2b2fadf183e7d1ddad23aMathieu Chartier#include "obj_ptr-inl.h" 400795f23920ee9aabf28e45c63cd592dcccf00216Mathieu Chartier#include "scoped_thread_state_change-inl.h" 41f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier#include "thread-inl.h" 42a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier#include "thread_list.h" 4390b936ddda63139ff46a6755c3b83ad6e4ab4ac5Andreas Gampe#include "well_known_classes.h" 44f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 45f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartiernamespace art { 46f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 4746ee31b67d7ee1bd085fbc240502053caa3cf8faAndreas Gampeusing android::base::StringPrintf; 4846ee31b67d7ee1bd085fbc240502053caa3cf8faAndreas Gampe 49fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier// If true, then we attempt to load the application image if it exists. 50fbc31087932a65e036a153afab3049dc5298656aMathieu Chartierstatic constexpr bool kEnableAppImage = true; 51fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier 52f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartierconst OatFile* OatFileManager::RegisterOatFile(std::unique_ptr<const OatFile> oat_file) { 53e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier WriterMutexLock mu(Thread::Current(), *Locks::oat_file_manager_lock_); 54f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier DCHECK(oat_file != nullptr); 55f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (kIsDebugBuild) { 56e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier CHECK(oat_files_.find(oat_file) == oat_files_.end()); 57f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier for (const std::unique_ptr<const OatFile>& existing : oat_files_) { 58f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier CHECK_NE(oat_file.get(), existing.get()) << oat_file->GetLocation(); 59f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Check that we don't have an oat file with the same address. Copies of the same oat file 60f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // should be loaded at different addresses. 61f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier CHECK_NE(oat_file->Begin(), existing->Begin()) << "Oat file already mapped at that location"; 62f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 63f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 64f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier have_non_pic_oat_file_ = have_non_pic_oat_file_ || !oat_file->IsPic(); 65e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier const OatFile* ret = oat_file.get(); 66e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier oat_files_.insert(std::move(oat_file)); 67e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier return ret; 68e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier} 69e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier 70e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartiervoid OatFileManager::UnRegisterAndDeleteOatFile(const OatFile* oat_file) { 71e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier WriterMutexLock mu(Thread::Current(), *Locks::oat_file_manager_lock_); 72e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier DCHECK(oat_file != nullptr); 73e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier std::unique_ptr<const OatFile> compare(oat_file); 74e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier auto it = oat_files_.find(compare); 75e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier CHECK(it != oat_files_.end()); 76e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier oat_files_.erase(it); 77e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier compare.release(); 78f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 79f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 800b791279f67b0f4b72db991707b16b737871bcdeCalin Juravleconst OatFile* OatFileManager::FindOpenedOatFileFromDexLocation( 810b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle const std::string& dex_base_location) const { 820b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle ReaderMutexLock mu(Thread::Current(), *Locks::oat_file_manager_lock_); 830b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle for (const std::unique_ptr<const OatFile>& oat_file : oat_files_) { 840b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle const std::vector<const OatDexFile*>& oat_dex_files = oat_file->GetOatDexFiles(); 850b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle for (const OatDexFile* oat_dex_file : oat_dex_files) { 860b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle if (DexFile::GetBaseLocation(oat_dex_file->GetDexFileLocation()) == dex_base_location) { 870b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle return oat_file.get(); 880b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle } 890b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle } 900b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle } 910b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle return nullptr; 920b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle} 930b791279f67b0f4b72db991707b16b737871bcdeCalin Juravle 94f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartierconst OatFile* OatFileManager::FindOpenedOatFileFromOatLocation(const std::string& oat_location) 95f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier const { 96f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier ReaderMutexLock mu(Thread::Current(), *Locks::oat_file_manager_lock_); 97e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier return FindOpenedOatFileFromOatLocationLocked(oat_location); 98e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier} 99e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier 100e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartierconst OatFile* OatFileManager::FindOpenedOatFileFromOatLocationLocked( 101e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier const std::string& oat_location) const { 102f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier for (const std::unique_ptr<const OatFile>& oat_file : oat_files_) { 103f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (oat_file->GetLocation() == oat_location) { 104f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return oat_file.get(); 105f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 106f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 107f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return nullptr; 108f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 109f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 110dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Haostd::vector<const OatFile*> OatFileManager::GetBootOatFiles() const { 111dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao std::vector<const OatFile*> oat_files; 112dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao std::vector<gc::space::ImageSpace*> image_spaces = 113dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao Runtime::Current()->GetHeap()->GetBootImageSpaces(); 114dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao for (gc::space::ImageSpace* image_space : image_spaces) { 115dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao oat_files.push_back(image_space->GetOatFile()); 116dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao } 117dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao return oat_files; 118f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 119f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 120f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartierconst OatFile* OatFileManager::GetPrimaryOatFile() const { 121f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier ReaderMutexLock mu(Thread::Current(), *Locks::oat_file_manager_lock_); 122dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao std::vector<const OatFile*> boot_oat_files = GetBootOatFiles(); 123dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao if (!boot_oat_files.empty()) { 124f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier for (const std::unique_ptr<const OatFile>& oat_file : oat_files_) { 125dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao if (std::find(boot_oat_files.begin(), boot_oat_files.end(), oat_file.get()) == 126dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao boot_oat_files.end()) { 127f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return oat_file.get(); 128f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 129f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 130f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 131f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return nullptr; 132f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 133f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 134f9c6fc610b27887f832e453a0da1789187293408Mathieu ChartierOatFileManager::~OatFileManager() { 135e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier // Explicitly clear oat_files_ since the OatFile destructor calls back into OatFileManager for 136e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier // UnRegisterOatFileLocation. 137e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier oat_files_.clear(); 138f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 139f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 140dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Haostd::vector<const OatFile*> OatFileManager::RegisterImageOatFiles( 141dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao std::vector<gc::space::ImageSpace*> spaces) { 142dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao std::vector<const OatFile*> oat_files; 143dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao for (gc::space::ImageSpace* space : spaces) { 144dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao oat_files.push_back(RegisterOatFile(space->ReleaseOatFile())); 145dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao } 146dcdc85bbd569f0ee66c331b4219c19304a616214Jeff Hao return oat_files; 147f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 148f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 1498ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Haoclass TypeIndexInfo { 1508ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao public: 1518ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao explicit TypeIndexInfo(const DexFile* dex_file) 1528ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao : type_indexes_(GenerateTypeIndexes(dex_file)), 1538ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao iter_(type_indexes_.Indexes().begin()), 1548ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao end_(type_indexes_.Indexes().end()) { } 1558ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao 1568ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao BitVector& GetTypeIndexes() { 1578ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao return type_indexes_; 1588ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao } 1598ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao BitVector::IndexIterator& GetIterator() { 1608ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao return iter_; 1618ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao } 1628ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao BitVector::IndexIterator& GetIteratorEnd() { 1638ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao return end_; 1648ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao } 1658ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao void AdvanceIterator() { 1668ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao iter_++; 1678ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao } 1688ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao 1698ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao private: 1708ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao static BitVector GenerateTypeIndexes(const DexFile* dex_file) { 1718ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao BitVector type_indexes(/*start_bits*/0, /*expandable*/true, Allocator::GetMallocAllocator()); 1728ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao for (uint16_t i = 0; i < dex_file->NumClassDefs(); ++i) { 1738ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao const DexFile::ClassDef& class_def = dex_file->GetClassDef(i); 1748ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao uint16_t type_idx = class_def.class_idx_.index_; 1758ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao type_indexes.SetBit(type_idx); 1768ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao } 1778ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao return type_indexes; 1788ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao } 1798ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao 1808ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao // BitVector with bits set for the type indexes of all classes in the input dex file. 1818ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao BitVector type_indexes_; 1828ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao BitVector::IndexIterator iter_; 1838ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao BitVector::IndexIterator end_; 1848ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao}; 1858ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao 186f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartierclass DexFileAndClassPair : ValueObject { 187f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier public: 1888ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao DexFileAndClassPair(const DexFile* dex_file, TypeIndexInfo* type_info, bool from_loaded_oat) 1898ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao : type_info_(type_info), 190f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier dex_file_(dex_file), 1918ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao cached_descriptor_(dex_file_->StringByTypeIdx(dex::TypeIndex(*type_info->GetIterator()))), 1928ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao from_loaded_oat_(from_loaded_oat) { 1938ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao type_info_->AdvanceIterator(); 1948ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao } 195f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 19680b37b7e679a530738c9bcbd39873b6dacf177e5Mathieu Chartier DexFileAndClassPair(const DexFileAndClassPair& rhs) = default; 197f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 19880b37b7e679a530738c9bcbd39873b6dacf177e5Mathieu Chartier DexFileAndClassPair& operator=(const DexFileAndClassPair& rhs) = default; 199f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 200f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier const char* GetCachedDescriptor() const { 201f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return cached_descriptor_; 202f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 203f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 204f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier bool operator<(const DexFileAndClassPair& rhs) const { 205f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier const int cmp = strcmp(cached_descriptor_, rhs.cached_descriptor_); 206f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (cmp != 0) { 207f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Note that the order must be reversed. We want to iterate over the classes in dex files. 208f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // They are sorted lexicographically. Thus, the priority-queue must be a min-queue. 209f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return cmp > 0; 210f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 211f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return dex_file_ < rhs.dex_file_; 212f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 213f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 214f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier bool DexFileHasMoreClasses() const { 2158ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao return type_info_->GetIterator() != type_info_->GetIteratorEnd(); 216f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 217f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 218f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier void Next() { 2198ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao cached_descriptor_ = dex_file_->StringByTypeIdx(dex::TypeIndex(*type_info_->GetIterator())); 2208ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao type_info_->AdvanceIterator(); 221f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 222f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 223f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier bool FromLoadedOat() const { 224f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return from_loaded_oat_; 225f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 226f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 227f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier const DexFile* GetDexFile() const { 228f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return dex_file_; 229f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 230f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 231f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier private: 2328ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao TypeIndexInfo* type_info_; 233f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao const DexFile* dex_file_; 2348ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao const char* cached_descriptor_; 235f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier bool from_loaded_oat_; // We only need to compare mismatches between what we load now 236f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // and what was loaded before. Any old duplicates must have been 237f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // OK, and any new "internal" duplicates are as well (they must 238f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // be from multidex, which resolves correctly). 239f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier}; 240f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 2418ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Haostatic void AddDexFilesFromOat( 2428ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao const OatFile* oat_file, 2438ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao /*out*/std::vector<const DexFile*>* dex_files, 2448ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao std::vector<std::unique_ptr<const DexFile>>* opened_dex_files) { 245f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier for (const OatDexFile* oat_dex_file : oat_file->GetOatDexFiles()) { 246f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier std::string error; 247f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier std::unique_ptr<const DexFile> dex_file = oat_dex_file->OpenDexFile(&error); 248f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (dex_file == nullptr) { 249f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier LOG(WARNING) << "Could not create dex file from oat file: " << error; 250f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } else if (dex_file->NumClassDefs() > 0U) { 2518ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao dex_files->push_back(dex_file.get()); 25214d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier opened_dex_files->push_back(std::move(dex_file)); 253f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 254f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 255f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 256f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 2578ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Haostatic void AddNext(/*inout*/DexFileAndClassPair& original, 2588ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao /*inout*/std::priority_queue<DexFileAndClassPair>& heap) { 2598ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao if (original.DexFileHasMoreClasses()) { 2608ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao original.Next(); 2618ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao heap.push(std::move(original)); 262f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 263f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao} 264f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 265ca620d7bc03b23a0bcf0ef58df58603ee000dca0Andreas Gampetemplate <typename T> 2663398c7874e002beaa6c2b2fadf183e7d1ddad23aMathieu Chartierstatic void IterateOverJavaDexFile(ObjPtr<mirror::Object> dex_file, 267f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao ArtField* const cookie_field, 268ca620d7bc03b23a0bcf0ef58df58603ee000dca0Andreas Gampe const T& fn) 269bdf7f1c3ab65ccb70f62db5ab31dba060632d458Andreas Gampe REQUIRES_SHARED(Locks::mutator_lock_) { 270f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (dex_file != nullptr) { 271f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao mirror::LongArray* long_array = cookie_field->GetObject(dex_file)->AsLongArray(); 272f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (long_array == nullptr) { 273f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // This should never happen so log a warning. 274f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao LOG(WARNING) << "Null DexFile::mCookie"; 275f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return; 276f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 277f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao int32_t long_array_size = long_array->GetLength(); 278f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Start from 1 to skip the oat file. 279f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao for (int32_t j = 1; j < long_array_size; ++j) { 280f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao const DexFile* cp_dex_file = reinterpret_cast<const DexFile*>(static_cast<uintptr_t>( 281f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao long_array->GetWithoutChecks(j))); 282f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (!fn(cp_dex_file)) { 283f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return; 284f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 285f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 286f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 287f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao} 288f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 289ca620d7bc03b23a0bcf0ef58df58603ee000dca0Andreas Gampetemplate <typename T> 290f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Haostatic void IterateOverPathClassLoader( 291f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao Handle<mirror::ClassLoader> class_loader, 292f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao MutableHandle<mirror::ObjectArray<mirror::Object>> dex_elements, 293ca620d7bc03b23a0bcf0ef58df58603ee000dca0Andreas Gampe const T& fn) REQUIRES_SHARED(Locks::mutator_lock_) { 294f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Handle this step. 295f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Handle as if this is the child PathClassLoader. 296f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // The class loader is a PathClassLoader which inherits from BaseDexClassLoader. 297f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // We need to get the DexPathList and loop through it. 29808883debd927d18c9ecf66683a2a11aa98165656Andreas Gampe ArtField* const cookie_field = 29908883debd927d18c9ecf66683a2a11aa98165656Andreas Gampe jni::DecodeArtField(WellKnownClasses::dalvik_system_DexFile_cookie); 300f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao ArtField* const dex_file_field = 30108883debd927d18c9ecf66683a2a11aa98165656Andreas Gampe jni::DecodeArtField(WellKnownClasses::dalvik_system_DexPathList__Element_dexFile); 3023398c7874e002beaa6c2b2fadf183e7d1ddad23aMathieu Chartier ObjPtr<mirror::Object> dex_path_list = 30308883debd927d18c9ecf66683a2a11aa98165656Andreas Gampe jni::DecodeArtField(WellKnownClasses::dalvik_system_BaseDexClassLoader_pathList)-> 30408883debd927d18c9ecf66683a2a11aa98165656Andreas Gampe GetObject(class_loader.Get()); 305f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (dex_path_list != nullptr && dex_file_field != nullptr && cookie_field != nullptr) { 306f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // DexPathList has an array dexElements of Elements[] which each contain a dex file. 3073398c7874e002beaa6c2b2fadf183e7d1ddad23aMathieu Chartier ObjPtr<mirror::Object> dex_elements_obj = 30808883debd927d18c9ecf66683a2a11aa98165656Andreas Gampe jni::DecodeArtField(WellKnownClasses::dalvik_system_DexPathList_dexElements)-> 30908883debd927d18c9ecf66683a2a11aa98165656Andreas Gampe GetObject(dex_path_list); 310f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Loop through each dalvik.system.DexPathList$Element's dalvik.system.DexFile and look 311f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // at the mCookie which is a DexFile vector. 312f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (dex_elements_obj != nullptr) { 313f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao dex_elements.Assign(dex_elements_obj->AsObjectArray<mirror::Object>()); 314f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao for (int32_t i = 0; i < dex_elements->GetLength(); ++i) { 315f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao mirror::Object* element = dex_elements->GetWithoutChecks(i); 316f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (element == nullptr) { 317f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Should never happen, fall back to java code to throw a NPE. 318f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao break; 319f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 3203398c7874e002beaa6c2b2fadf183e7d1ddad23aMathieu Chartier ObjPtr<mirror::Object> dex_file = dex_file_field->GetObject(element); 321f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao IterateOverJavaDexFile(dex_file, cookie_field, fn); 322f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 323f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 324f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 325f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 326f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 327f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Haostatic bool GetDexFilesFromClassLoader( 328f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao ScopedObjectAccessAlreadyRunnable& soa, 329f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao mirror::ClassLoader* class_loader, 3308ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao std::vector<const DexFile*>* dex_files) 3318ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao REQUIRES_SHARED(Locks::mutator_lock_) { 332f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (ClassLinker::IsBootClassLoader(soa, class_loader)) { 333f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // The boot class loader. We don't load any of these files, as we know we compiled against 334f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // them correctly. 335f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return true; 336f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 337f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 338f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Unsupported class-loader? 3390795f23920ee9aabf28e45c63cd592dcccf00216Mathieu Chartier if (soa.Decode<mirror::Class>(WellKnownClasses::dalvik_system_PathClassLoader) != 3400795f23920ee9aabf28e45c63cd592dcccf00216Mathieu Chartier class_loader->GetClass()) { 341709b070044354d9f47641f273edacaeeb0240ab7David Sehr VLOG(class_linker) << "Unsupported class-loader " 342709b070044354d9f47641f273edacaeeb0240ab7David Sehr << mirror::Class::PrettyClass(class_loader->GetClass()); 343f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return false; 344f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 345f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 3468ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao bool recursive_result = GetDexFilesFromClassLoader(soa, class_loader->GetParent(), dex_files); 347f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (!recursive_result) { 348f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Something wrong up the chain. 349f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return false; 350f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 351f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 352f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Collect all the dex files. 353f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao auto GetDexFilesFn = [&] (const DexFile* cp_dex_file) 354bdf7f1c3ab65ccb70f62db5ab31dba060632d458Andreas Gampe REQUIRES_SHARED(Locks::mutator_lock_) { 355f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (cp_dex_file->NumClassDefs() > 0) { 3568ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao dex_files->push_back(cp_dex_file); 357f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 358f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return true; // Continue looking. 359f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao }; 360f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 361f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Handle for dex-cache-element. 362f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao StackHandleScope<3> hs(soa.Self()); 363f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao MutableHandle<mirror::ObjectArray<mirror::Object>> dex_elements( 364f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao hs.NewHandle<mirror::ObjectArray<mirror::Object>>(nullptr)); 365f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao Handle<mirror::ClassLoader> h_class_loader(hs.NewHandle(class_loader)); 366f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 36708883debd927d18c9ecf66683a2a11aa98165656Andreas Gampe IterateOverPathClassLoader(h_class_loader, dex_elements, GetDexFilesFn); 368f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 369f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return true; 370f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao} 371f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 372f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Haostatic void GetDexFilesFromDexElementsArray( 373f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao ScopedObjectAccessAlreadyRunnable& soa, 374f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao Handle<mirror::ObjectArray<mirror::Object>> dex_elements, 3758ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao std::vector<const DexFile*>* dex_files) 3768ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao REQUIRES_SHARED(Locks::mutator_lock_) { 377fa4333dcb481e564f54726b4e6f8153612df835eAndreas Gampe if (dex_elements == nullptr) { 378f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Nothing to do. 379f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return; 380f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 381f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 38208883debd927d18c9ecf66683a2a11aa98165656Andreas Gampe ArtField* const cookie_field = 38308883debd927d18c9ecf66683a2a11aa98165656Andreas Gampe jni::DecodeArtField(WellKnownClasses::dalvik_system_DexFile_cookie); 384f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao ArtField* const dex_file_field = 38508883debd927d18c9ecf66683a2a11aa98165656Andreas Gampe jni::DecodeArtField(WellKnownClasses::dalvik_system_DexPathList__Element_dexFile); 3860795f23920ee9aabf28e45c63cd592dcccf00216Mathieu Chartier ObjPtr<mirror::Class> const element_class = soa.Decode<mirror::Class>( 387f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao WellKnownClasses::dalvik_system_DexPathList__Element); 3880795f23920ee9aabf28e45c63cd592dcccf00216Mathieu Chartier ObjPtr<mirror::Class> const dexfile_class = soa.Decode<mirror::Class>( 3890795f23920ee9aabf28e45c63cd592dcccf00216Mathieu Chartier WellKnownClasses::dalvik_system_DexFile); 390f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 391f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Collect all the dex files. 392f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao auto GetDexFilesFn = [&] (const DexFile* cp_dex_file) 393bdf7f1c3ab65ccb70f62db5ab31dba060632d458Andreas Gampe REQUIRES_SHARED(Locks::mutator_lock_) { 394f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (cp_dex_file != nullptr && cp_dex_file->NumClassDefs() > 0) { 3958ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao dex_files->push_back(cp_dex_file); 396f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 397f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return true; // Continue looking. 398f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao }; 399f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 400f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao for (int32_t i = 0; i < dex_elements->GetLength(); ++i) { 401f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao mirror::Object* element = dex_elements->GetWithoutChecks(i); 402f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (element == nullptr) { 403f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao continue; 404f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 405f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 406f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // We support this being dalvik.system.DexPathList$Element and dalvik.system.DexFile. 407f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 4083398c7874e002beaa6c2b2fadf183e7d1ddad23aMathieu Chartier ObjPtr<mirror::Object> dex_file; 4090795f23920ee9aabf28e45c63cd592dcccf00216Mathieu Chartier if (element_class == element->GetClass()) { 410f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao dex_file = dex_file_field->GetObject(element); 4110795f23920ee9aabf28e45c63cd592dcccf00216Mathieu Chartier } else if (dexfile_class == element->GetClass()) { 412f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao dex_file = element; 413f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } else { 414709b070044354d9f47641f273edacaeeb0240ab7David Sehr LOG(WARNING) << "Unsupported element in dex_elements: " 415709b070044354d9f47641f273edacaeeb0240ab7David Sehr << mirror::Class::PrettyClass(element->GetClass()); 416f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao continue; 417f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 418f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 419f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao IterateOverJavaDexFile(dex_file, cookie_field, GetDexFilesFn); 420f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 421f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao} 422f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 4235c657fe8e3afdce77dc610446f37a43865cff702Vladimir Markostatic bool AreSharedLibrariesOk(const std::string& shared_libraries, 4248ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao std::vector<const DexFile*>& dex_files) { 4258ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao // If no shared libraries, we expect no dex files. 426f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (shared_libraries.empty()) { 4278ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao return dex_files.empty(); 4288ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao } 4298ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao // If we find the special shared library, skip the shared libraries check. 4308ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao if (shared_libraries.compare(OatFile::kSpecialSharedLibrary) == 0) { 4318ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao return true; 4328ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao } 4338ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao // Shared libraries is a series of dex file paths and their checksums, each separated by '*'. 4348ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao std::vector<std::string> shared_libraries_split; 4358ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao Split(shared_libraries, '*', &shared_libraries_split); 4368ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao 4378ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao // Sanity check size of dex files and split shared libraries. Should be 2x as many entries in 4388ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao // the split shared libraries since it contains pairs of filename/checksum. 4398ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao if (dex_files.size() * 2 != shared_libraries_split.size()) { 4408ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao return false; 4418ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao } 4428ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao 4438ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao for (size_t i = 0; i < dex_files.size(); ++i) { 4448ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao if (dex_files[i]->GetLocation() != shared_libraries_split[i * 2]) { 4458ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao return false; 446f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 4478ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao char* end; 4488ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao size_t shared_lib_checksum = strtoul(shared_libraries_split[i * 2 + 1].c_str(), &end, 10); 4498ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao uint32_t dex_checksum = dex_files[i]->GetLocationChecksum(); 4508ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao if (*end != '\0' || dex_checksum != shared_lib_checksum) { 4518ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao return false; 452f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 4538ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao } 4548ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao 4558ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao return true; 4568ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao} 4578ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao 4588ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Haostatic bool CollisionCheck(std::vector<const DexFile*>& dex_files_loaded, 4598ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao std::vector<const DexFile*>& dex_files_unloaded, 4608ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao std::string* error_msg /*out*/) { 4618ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao // Generate type index information for each dex file. 4628ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao std::vector<TypeIndexInfo> loaded_types; 4638ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao for (const DexFile* dex_file : dex_files_loaded) { 4648ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao loaded_types.push_back(TypeIndexInfo(dex_file)); 4658ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao } 4668ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao std::vector<TypeIndexInfo> unloaded_types; 4678ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao for (const DexFile* dex_file : dex_files_unloaded) { 4688ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao unloaded_types.push_back(TypeIndexInfo(dex_file)); 4698ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao } 4708ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao 4718ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao // Populate the queue of dex file and class pairs with the loaded and unloaded dex files. 4728ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao std::priority_queue<DexFileAndClassPair> queue; 4738ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao for (size_t i = 0; i < dex_files_loaded.size(); ++i) { 4748ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao if (loaded_types[i].GetIterator() != loaded_types[i].GetIteratorEnd()) { 4758ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao queue.emplace(dex_files_loaded[i], &loaded_types[i], /*from_loaded_oat*/true); 4768ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao } 4778ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao } 4788ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao for (size_t i = 0; i < dex_files_unloaded.size(); ++i) { 4798ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao if (unloaded_types[i].GetIterator() != unloaded_types[i].GetIteratorEnd()) { 4808ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao queue.emplace(dex_files_unloaded[i], &unloaded_types[i], /*from_loaded_oat*/false); 4818ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao } 4828ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao } 4838ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao 4848ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao // Now drain the queue. 4858ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao while (!queue.empty()) { 4868ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao // Modifying the top element is only safe if we pop right after. 4878ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao DexFileAndClassPair compare_pop(queue.top()); 4888ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao queue.pop(); 4898ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao 4908ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao // Compare against the following elements. 4918ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao while (!queue.empty()) { 4928ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao DexFileAndClassPair top(queue.top()); 4938ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao if (strcmp(compare_pop.GetCachedDescriptor(), top.GetCachedDescriptor()) == 0) { 4948ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao // Same descriptor. Check whether it's crossing old-oat-files to new-oat-files. 4958ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao if (compare_pop.FromLoadedOat() != top.FromLoadedOat()) { 4968ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao *error_msg = 4978ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao StringPrintf("Found duplicated class when checking oat files: '%s' in %s and %s", 4988ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao compare_pop.GetCachedDescriptor(), 4998ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao compare_pop.GetDexFile()->GetLocation().c_str(), 5008ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao top.GetDexFile()->GetLocation().c_str()); 5018ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao return true; 5028ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao } 5038ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao queue.pop(); 5048ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao AddNext(top, queue); 5058ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao } else { 5068ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao // Something else. Done here. 507f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao break; 508f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 509f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 5108ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao AddNext(compare_pop, queue); 511f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 5128ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao 513f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao return false; 514f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao} 515f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 516f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier// Check for class-def collisions in dex files. 517f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier// 518f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao// This first walks the class loader chain, getting all the dex files from the class loader. If 519f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao// the class loader is null or one of the class loaders in the chain is unsupported, we collect 520f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao// dex files from all open non-boot oat files to be safe. 521f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao// 522f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao// This first checks whether the shared libraries are in the expected order and the oat files 523f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao// have the expected checksums. If so, we exit early. Otherwise, we do the collision check. 524f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao// 525f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao// The collision check works by maintaining a heap with one class from each dex file, sorted by the 526f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao// class descriptor. Then a dex-file/class pair is continually removed from the heap and compared 527f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier// against the following top element. If the descriptor is the same, it is now checked whether 528f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier// the two elements agree on whether their dex file was from an already-loaded oat-file or the 529f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier// new oat file. Any disagreement indicates a collision. 530f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartierbool OatFileManager::HasCollisions(const OatFile* oat_file, 531f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao jobject class_loader, 532f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao jobjectArray dex_elements, 533f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier std::string* error_msg /*out*/) const { 534f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier DCHECK(oat_file != nullptr); 535f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier DCHECK(error_msg != nullptr); 536f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 5378ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao std::vector<const DexFile*> dex_files_loaded; 538f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 539f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Try to get dex files from the given class loader. If the class loader is null, or we do 540f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // not support one of the class loaders in the chain, conservatively compare against all 541f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // (non-boot) oat files. 542f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao bool class_loader_ok = false; 543f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao { 544f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao ScopedObjectAccess soa(Thread::Current()); 545f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao StackHandleScope<2> hs(Thread::Current()); 546f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao Handle<mirror::ClassLoader> h_class_loader = 5470795f23920ee9aabf28e45c63cd592dcccf00216Mathieu Chartier hs.NewHandle(soa.Decode<mirror::ClassLoader>(class_loader)); 548f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao Handle<mirror::ObjectArray<mirror::Object>> h_dex_elements = 5490795f23920ee9aabf28e45c63cd592dcccf00216Mathieu Chartier hs.NewHandle(soa.Decode<mirror::ObjectArray<mirror::Object>>(dex_elements)); 550fa4333dcb481e564f54726b4e6f8153612df835eAndreas Gampe if (h_class_loader != nullptr && 5518ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao GetDexFilesFromClassLoader(soa, h_class_loader.Get(), &dex_files_loaded)) { 552f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao class_loader_ok = true; 553f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 554f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // In this case, also take into account the dex_elements array, if given. We don't need to 555f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // read it otherwise, as we'll compare against all open oat files anyways. 5568ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao GetDexFilesFromDexElementsArray(soa, h_dex_elements, &dex_files_loaded); 557fa4333dcb481e564f54726b4e6f8153612df835eAndreas Gampe } else if (h_class_loader != nullptr) { 558f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao VLOG(class_linker) << "Something unsupported with " 559709b070044354d9f47641f273edacaeeb0240ab7David Sehr << mirror::Class::PrettyClass(h_class_loader->GetClass()); 560f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 561f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 562f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 563f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Dex files are registered late - once a class is actually being loaded. We have to compare 564f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // against the open oat files. Take the oat_file_manager_lock_ that protects oat_files_ accesses. 565f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier ReaderMutexLock mu(Thread::Current(), *Locks::oat_file_manager_lock_); 566f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 56714d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier // Vector that holds the newly opened dex files live, this is done to prevent leaks. 56814d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier std::vector<std::unique_ptr<const DexFile>> opened_dex_files; 56914d7b3e37b6129d845d6c8da8ee8d612937c63d4Mathieu Chartier 570f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (!class_loader_ok) { 571f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Add dex files from already loaded oat files, but skip boot. 572f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 5738ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao // Clean up the dex files. 5748ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao dex_files_loaded.clear(); 575f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao 576f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao std::vector<const OatFile*> boot_oat_files = GetBootOatFiles(); 577f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // The same OatFile can be loaded multiple times at different addresses. In this case, we don't 578f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // need to check both against each other since they would have resolved the same way at compile 579f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // time. 580f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao std::unordered_set<std::string> unique_locations; 581f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao for (const std::unique_ptr<const OatFile>& loaded_oat_file : oat_files_) { 582f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao DCHECK_NE(loaded_oat_file.get(), oat_file); 583f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao const std::string& location = loaded_oat_file->GetLocation(); 584f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao if (std::find(boot_oat_files.begin(), boot_oat_files.end(), loaded_oat_file.get()) == 585f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao boot_oat_files.end() && location != oat_file->GetLocation() && 586f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao unique_locations.find(location) == unique_locations.end()) { 587f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao unique_locations.insert(location); 5888ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao AddDexFilesFromOat(loaded_oat_file.get(), &dex_files_loaded, &opened_dex_files); 589f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao } 590f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 591f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 592f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 593f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao // Exit if shared libraries are ok. Do a full duplicate classes check otherwise. 594f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao const std::string 595f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao shared_libraries(oat_file->GetOatHeader().GetStoreValueByKey(OatHeader::kClassPathKey)); 5968ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao if (AreSharedLibrariesOk(shared_libraries, dex_files_loaded)) { 597f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return false; 598f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 599f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 6001fdbe1b034d97b852551d24e70245df64f03ebebAndreas Gampe ScopedTrace st("Collision check"); 601f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Add dex files from the oat file to check. 6028ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao std::vector<const DexFile*> dex_files_unloaded; 6038ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao AddDexFilesFromOat(oat_file, &dex_files_unloaded, &opened_dex_files); 6048ec0a20abae9a1e9a708ee02dd2639351933c028Jeff Hao return CollisionCheck(dex_files_loaded, dex_files_unloaded, error_msg); 605f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 606f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 607f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartierstd::vector<std::unique_ptr<const DexFile>> OatFileManager::OpenDexFilesFromOat( 608f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier const char* dex_location, 609f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier const char* oat_location, 610fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier jobject class_loader, 611fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier jobjectArray dex_elements, 612e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier const OatFile** out_oat_file, 613f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier std::vector<std::string>* error_msgs) { 61432ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier ScopedTrace trace(__FUNCTION__); 615f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier CHECK(dex_location != nullptr); 616f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier CHECK(error_msgs != nullptr); 617f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 618f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Verify we aren't holding the mutator lock, which could starve GC if we 619f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // have to generate or relocate an oat file. 620fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier Thread* const self = Thread::Current(); 621fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier Locks::mutator_lock_->AssertNotHeld(self); 622fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier Runtime* const runtime = Runtime::Current(); 623b077e15d2d11b7c81aacbcd4a46c2b1e9c9ba20dCalin Juravle 624f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier OatFileAssistant oat_file_assistant(dex_location, 625f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier oat_location, 626f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier kRuntimeISA, 627fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier !runtime->IsAotCompiler()); 628f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 629f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Lock the target oat location to avoid races generating and loading the 630f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // oat file. 631f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier std::string error_msg; 632f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (!oat_file_assistant.Lock(/*out*/&error_msg)) { 633f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Don't worry too much if this fails. If it does fail, it's unlikely we 634f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // can generate an oat file anyway. 635f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier VLOG(class_linker) << "OatFileAssistant::Lock: " << error_msg; 636f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 637f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 638f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier const OatFile* source_oat_file = nullptr; 639f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 64001be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler if (!oat_file_assistant.IsUpToDate()) { 64101be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler // Update the oat file on disk if we can, based on the --compiler-filter 64201be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler // option derived from the current runtime options. 64301be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler // This may fail, but that's okay. Best effort is all that matters here. 644d1472a27e856ec68ab5a27abaaebe9c61d91d343Richard Uhler switch (oat_file_assistant.MakeUpToDate(/*profile_changed*/false, /*out*/ &error_msg)) { 64501be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler case OatFileAssistant::kUpdateFailed: 64601be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler LOG(WARNING) << error_msg; 64701be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler break; 64801be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler 64901be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler case OatFileAssistant::kUpdateNotAttempted: 65001be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler // Avoid spamming the logs if we decided not to attempt making the oat 65101be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler // file up to date. 65201be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler VLOG(oat) << error_msg; 65301be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler break; 65401be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler 65501be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler case OatFileAssistant::kUpdateSucceeded: 65601be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler // Nothing to do. 65701be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler break; 65801be68100e96a44b4ff8cb4cb3c9baa346ff048dRichard Uhler } 659f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 660f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 661f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Get the oat file on disk. 662f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier std::unique_ptr<const OatFile> oat_file(oat_file_assistant.GetBestOatFile().release()); 663fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier 664f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (oat_file != nullptr) { 665f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Take the file only if it has no collisions, or we must take it because of preopting. 666f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao bool accept_oat_file = 667f0192c86a58b2f43378c9a2113007538dd38ddbfJeff Hao !HasCollisions(oat_file.get(), class_loader, dex_elements, /*out*/ &error_msg); 668f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (!accept_oat_file) { 669f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Failed the collision check. Print warning. 670f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (Runtime::Current()->IsDexFileFallbackEnabled()) { 671f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier LOG(WARNING) << "Found duplicate classes, falling back to interpreter mode for " 672f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier << dex_location; 673f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } else { 674f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier LOG(WARNING) << "Found duplicate classes, dex-file-fallback disabled, will be failing to " 675f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier " load classes for " << dex_location; 676f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 677f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier LOG(WARNING) << error_msg; 678f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 679f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // However, if the app was part of /system and preopted, there is no original dex file 680f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // available. In that case grudgingly accept the oat file. 68176f5cb6026b9c83bf00fd1007703503a327f704dRichard Uhler if (!oat_file_assistant.HasOriginalDexFiles()) { 682f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier accept_oat_file = true; 683f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier LOG(WARNING) << "Dex location " << dex_location << " does not seem to include dex file. " 684f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier << "Allow oat file use. This is potentially dangerous."; 685f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 686f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 687f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 688f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (accept_oat_file) { 689f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier VLOG(class_linker) << "Registering " << oat_file->GetLocation(); 690f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier source_oat_file = RegisterOatFile(std::move(oat_file)); 691e58991b3b2282b5761f1a6023a16c803e1c4eb45Mathieu Chartier *out_oat_file = source_oat_file; 692f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 693f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 694f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 695f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier std::vector<std::unique_ptr<const DexFile>> dex_files; 696f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 697f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Load the dex files from the oat file. 698f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (source_oat_file != nullptr) { 699fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier bool added_image_space = false; 700fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier if (source_oat_file->IsExecutable()) { 701a463b6a920a2a0bf14f9cca20a561b412b9349d1Andreas Gampe std::unique_ptr<gc::space::ImageSpace> image_space = 702a463b6a920a2a0bf14f9cca20a561b412b9349d1Andreas Gampe kEnableAppImage ? oat_file_assistant.OpenImageSpace(source_oat_file) : nullptr; 703fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier if (image_space != nullptr) { 704fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier ScopedObjectAccess soa(self); 705fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier StackHandleScope<1> hs(self); 706fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier Handle<mirror::ClassLoader> h_loader( 7070795f23920ee9aabf28e45c63cd592dcccf00216Mathieu Chartier hs.NewHandle(soa.Decode<mirror::ClassLoader>(class_loader))); 708fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier // Can not load app image without class loader. 709fa4333dcb481e564f54726b4e6f8153612df835eAndreas Gampe if (h_loader != nullptr) { 710fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier std::string temp_error_msg; 711fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier // Add image space has a race condition since other threads could be reading from the 712fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier // spaces array. 713a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier { 714a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier ScopedThreadSuspension sts(self, kSuspended); 71561d2b2d353ba4ab952247d2bff2c905598118bb4Mathieu Chartier gc::ScopedGCCriticalSection gcs(self, 71661d2b2d353ba4ab952247d2bff2c905598118bb4Mathieu Chartier gc::kGcCauseAddRemoveAppImageSpace, 71761d2b2d353ba4ab952247d2bff2c905598118bb4Mathieu Chartier gc::kCollectorTypeAddRemoveAppImageSpace); 718a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier ScopedSuspendAll ssa("Add image space"); 719a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier runtime->GetHeap()->AddSpace(image_space.get()); 720a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier } 72132ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier { 72232ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier ScopedTrace trace2(StringPrintf("Adding image space for location %s", dex_location)); 72332ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier added_image_space = runtime->GetClassLinker()->AddImageSpace(image_space.get(), 72432ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier h_loader, 72532ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier dex_elements, 72632ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier dex_location, 72732ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier /*out*/&dex_files, 72832ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier /*out*/&temp_error_msg); 72932ce2adefb8a3d0eda59a29f5e87c1eb43eef796Mathieu Chartier } 730a6e81ed4c185b7362cd5199ebe5507d00883a9b0Mathieu Chartier if (added_image_space) { 731bd064ea2269b23360e32e8139c22d5993ddc385bMathieu Chartier // Successfully added image space to heap, release the map so that it does not get 732bd064ea2269b23360e32e8139c22d5993ddc385bMathieu Chartier // freed. 733bd064ea2269b23360e32e8139c22d5993ddc385bMathieu Chartier image_space.release(); 734bd064ea2269b23360e32e8139c22d5993ddc385bMathieu Chartier } else { 735fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier LOG(INFO) << "Failed to add image file " << temp_error_msg; 736fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier dex_files.clear(); 737a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier { 738a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier ScopedThreadSuspension sts(self, kSuspended); 73961d2b2d353ba4ab952247d2bff2c905598118bb4Mathieu Chartier gc::ScopedGCCriticalSection gcs(self, 74061d2b2d353ba4ab952247d2bff2c905598118bb4Mathieu Chartier gc::kGcCauseAddRemoveAppImageSpace, 74161d2b2d353ba4ab952247d2bff2c905598118bb4Mathieu Chartier gc::kCollectorTypeAddRemoveAppImageSpace); 742a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier ScopedSuspendAll ssa("Remove image space"); 743a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier runtime->GetHeap()->RemoveSpace(image_space.get()); 744a9d82fe8bc6960b565245b920e99107a824ca515Mathieu Chartier } 745fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier // Non-fatal, don't update error_msg. 746fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier } 747fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier } 748fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier } 749fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier } 750fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier if (!added_image_space) { 751fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier DCHECK(dex_files.empty()); 752fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier dex_files = oat_file_assistant.LoadDexFiles(*source_oat_file, dex_location); 753fbc31087932a65e036a153afab3049dc5298656aMathieu Chartier } 754f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (dex_files.empty()) { 755f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier error_msgs->push_back("Failed to open dex files from " + source_oat_file->GetLocation()); 756f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 757f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 758f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 759f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // Fall back to running out of the original dex file if we couldn't load any 760f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier // dex_files from the oat file. 761f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (dex_files.empty()) { 762f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (oat_file_assistant.HasOriginalDexFiles()) { 763f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier if (Runtime::Current()->IsDexFileFallbackEnabled()) { 76437d6a3bbf5826abb73f872ed0bc4c6ae9553e274Aart Bik static constexpr bool kVerifyChecksum = true; 76537d6a3bbf5826abb73f872ed0bc4c6ae9553e274Aart Bik if (!DexFile::Open( 76637d6a3bbf5826abb73f872ed0bc4c6ae9553e274Aart Bik dex_location, dex_location, kVerifyChecksum, /*out*/ &error_msg, &dex_files)) { 767f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier LOG(WARNING) << error_msg; 7683045b66613404fa973aafc8c2aae3728e9c12d9aAlex Light error_msgs->push_back("Failed to open dex files from " + std::string(dex_location) 7693045b66613404fa973aafc8c2aae3728e9c12d9aAlex Light + " because: " + error_msg); 770f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 771f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } else { 772f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier error_msgs->push_back("Fallback mode disabled, skipping dex files."); 773f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 774f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } else { 775f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier error_msgs->push_back("No original dex files found for dex location " 776f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier + std::string(dex_location)); 777f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 778f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier } 779c90bc92bc577020ff4d3caced4cee1cdf41fa5deCalin Juravle 780f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier return dex_files; 781f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} 782f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier 78304680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffrayvoid OatFileManager::DumpForSigQuit(std::ostream& os) { 78404680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffray ReaderMutexLock mu(Thread::Current(), *Locks::oat_file_manager_lock_); 78504680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffray std::vector<const OatFile*> boot_oat_files = GetBootOatFiles(); 78604680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffray for (const std::unique_ptr<const OatFile>& oat_file : oat_files_) { 78704680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffray if (ContainsElement(boot_oat_files, oat_file.get())) { 78804680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffray continue; 78904680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffray } 79029d38e77c553c6cf71fc4dafe2d22b4e3f814872Andreas Gampe os << oat_file->GetLocation() << ": " << oat_file->GetCompilerFilter() << "\n"; 79104680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffray } 79204680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffray} 79304680f3d7b021a0afb460266d442f564186a3b6fNicolas Geoffray 794f9c6fc610b27887f832e453a0da1789187293408Mathieu Chartier} // namespace art 795