| /* | 
 |  * Copyright (C) 2011 The Android Open Source Project | 
 |  * | 
 |  * Licensed under the Apache License, Version 2.0 (the "License"); | 
 |  * you may not use this file except in compliance with the License. | 
 |  * You may obtain a copy of the License at | 
 |  * | 
 |  *      http://www.apache.org/licenses/LICENSE-2.0 | 
 |  * | 
 |  * Unless required by applicable law or agreed to in writing, software | 
 |  * distributed under the License is distributed on an "AS IS" BASIS, | 
 |  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 
 |  * See the License for the specific language governing permissions and | 
 |  * limitations under the License. | 
 |  */ | 
 |  | 
 | #include "android-base/stringprintf.h" | 
 |  | 
 | #include "arch/instruction_set_features.h" | 
 | #include "art_method-inl.h" | 
 | #include "base/enums.h" | 
 | #include "base/unix_file/fd_file.h" | 
 | #include "class_linker.h" | 
 | #include "common_compiler_test.h" | 
 | #include "compiled_method.h" | 
 | #include "compiler.h" | 
 | #include "debug/method_debug_info.h" | 
 | #include "dex/quick_compiler_callbacks.h" | 
 | #include "dex/verification_results.h" | 
 | #include "driver/compiler_driver.h" | 
 | #include "driver/compiler_options.h" | 
 | #include "elf_writer.h" | 
 | #include "elf_writer_quick.h" | 
 | #include "entrypoints/quick/quick_entrypoints.h" | 
 | #include "linker/buffered_output_stream.h" | 
 | #include "linker/file_output_stream.h" | 
 | #include "linker/multi_oat_relative_patcher.h" | 
 | #include "linker/vector_output_stream.h" | 
 | #include "mirror/class-inl.h" | 
 | #include "mirror/object-inl.h" | 
 | #include "mirror/object_array-inl.h" | 
 | #include "oat_file-inl.h" | 
 | #include "oat_writer.h" | 
 | #include "scoped_thread_state_change-inl.h" | 
 | #include "utils/test_dex_file_builder.h" | 
 |  | 
 | namespace art { | 
 |  | 
 | NO_RETURN static void Usage(const char* fmt, ...) { | 
 |   va_list ap; | 
 |   va_start(ap, fmt); | 
 |   std::string error; | 
 |   android::base::StringAppendV(&error, fmt, ap); | 
 |   LOG(FATAL) << error; | 
 |   va_end(ap); | 
 |   UNREACHABLE(); | 
 | } | 
 |  | 
 | class OatTest : public CommonCompilerTest { | 
 |  protected: | 
 |   static const bool kCompile = false;  // DISABLED_ due to the time to compile libcore | 
 |  | 
 |   void CheckMethod(ArtMethod* method, | 
 |                    const OatFile::OatMethod& oat_method, | 
 |                    const DexFile& dex_file) | 
 |       REQUIRES_SHARED(Locks::mutator_lock_) { | 
 |     const CompiledMethod* compiled_method = | 
 |         compiler_driver_->GetCompiledMethod(MethodReference(&dex_file, | 
 |                                                             method->GetDexMethodIndex())); | 
 |  | 
 |     if (compiled_method == nullptr) { | 
 |       EXPECT_TRUE(oat_method.GetQuickCode() == nullptr) << method->PrettyMethod() << " " | 
 |                                                         << oat_method.GetQuickCode(); | 
 |       EXPECT_EQ(oat_method.GetFrameSizeInBytes(), 0U); | 
 |       EXPECT_EQ(oat_method.GetCoreSpillMask(), 0U); | 
 |       EXPECT_EQ(oat_method.GetFpSpillMask(), 0U); | 
 |     } else { | 
 |       const void* quick_oat_code = oat_method.GetQuickCode(); | 
 |       EXPECT_TRUE(quick_oat_code != nullptr) << method->PrettyMethod(); | 
 |       EXPECT_EQ(oat_method.GetFrameSizeInBytes(), compiled_method->GetFrameSizeInBytes()); | 
 |       EXPECT_EQ(oat_method.GetCoreSpillMask(), compiled_method->GetCoreSpillMask()); | 
 |       EXPECT_EQ(oat_method.GetFpSpillMask(), compiled_method->GetFpSpillMask()); | 
 |       uintptr_t oat_code_aligned = RoundDown(reinterpret_cast<uintptr_t>(quick_oat_code), 2); | 
 |       quick_oat_code = reinterpret_cast<const void*>(oat_code_aligned); | 
 |       ArrayRef<const uint8_t> quick_code = compiled_method->GetQuickCode(); | 
 |       EXPECT_FALSE(quick_code.empty()); | 
 |       size_t code_size = quick_code.size() * sizeof(quick_code[0]); | 
 |       EXPECT_EQ(0, memcmp(quick_oat_code, &quick_code[0], code_size)) | 
 |           << method->PrettyMethod() << " " << code_size; | 
 |       CHECK_EQ(0, memcmp(quick_oat_code, &quick_code[0], code_size)); | 
 |     } | 
 |   } | 
 |  | 
 |   void SetupCompiler(Compiler::Kind compiler_kind, | 
 |                      InstructionSet insn_set, | 
 |                      const std::vector<std::string>& compiler_options, | 
 |                      /*out*/std::string* error_msg) { | 
 |     ASSERT_TRUE(error_msg != nullptr); | 
 |     insn_features_ = InstructionSetFeatures::FromVariant(insn_set, "default", error_msg); | 
 |     ASSERT_TRUE(insn_features_ != nullptr) << error_msg; | 
 |     compiler_options_.reset(new CompilerOptions); | 
 |     for (const std::string& option : compiler_options) { | 
 |       compiler_options_->ParseCompilerOption(option, Usage); | 
 |     } | 
 |     verification_results_.reset(new VerificationResults(compiler_options_.get())); | 
 |     callbacks_.reset(new QuickCompilerCallbacks(verification_results_.get(), | 
 |                                                 CompilerCallbacks::CallbackMode::kCompileApp)); | 
 |     Runtime::Current()->SetCompilerCallbacks(callbacks_.get()); | 
 |     timer_.reset(new CumulativeLogger("Compilation times")); | 
 |     compiler_driver_.reset(new CompilerDriver(compiler_options_.get(), | 
 |                                               verification_results_.get(), | 
 |                                               compiler_kind, | 
 |                                               insn_set, | 
 |                                               insn_features_.get(), | 
 |                                               /* image_classes */ nullptr, | 
 |                                               /* compiled_classes */ nullptr, | 
 |                                               /* compiled_methods */ nullptr, | 
 |                                               /* thread_count */ 2, | 
 |                                               /* dump_stats */ true, | 
 |                                               /* dump_passes */ true, | 
 |                                               timer_.get(), | 
 |                                               /* swap_fd */ -1, | 
 |                                               /* profile_compilation_info */ nullptr)); | 
 |   } | 
 |  | 
 |   bool WriteElf(File* vdex_file, | 
 |                 File* oat_file, | 
 |                 const std::vector<const DexFile*>& dex_files, | 
 |                 SafeMap<std::string, std::string>& key_value_store, | 
 |                 bool verify) { | 
 |     TimingLogger timings("WriteElf", false, false); | 
 |     OatWriter oat_writer(/*compiling_boot_image*/false, | 
 |                          &timings, | 
 |                          /*profile_compilation_info*/nullptr); | 
 |     for (const DexFile* dex_file : dex_files) { | 
 |       ArrayRef<const uint8_t> raw_dex_file( | 
 |           reinterpret_cast<const uint8_t*>(&dex_file->GetHeader()), | 
 |           dex_file->GetHeader().file_size_); | 
 |       if (!oat_writer.AddRawDexFileSource(raw_dex_file, | 
 |                                           dex_file->GetLocation().c_str(), | 
 |                                           dex_file->GetLocationChecksum())) { | 
 |         return false; | 
 |       } | 
 |     } | 
 |     return DoWriteElf(vdex_file, oat_file, oat_writer, key_value_store, verify); | 
 |   } | 
 |  | 
 |   bool WriteElf(File* vdex_file, | 
 |                 File* oat_file, | 
 |                 const std::vector<const char*>& dex_filenames, | 
 |                 SafeMap<std::string, std::string>& key_value_store, | 
 |                 bool verify) { | 
 |     TimingLogger timings("WriteElf", false, false); | 
 |     OatWriter oat_writer(/*compiling_boot_image*/false, | 
 |                          &timings, | 
 |                          /*profile_compilation_info*/nullptr); | 
 |     for (const char* dex_filename : dex_filenames) { | 
 |       if (!oat_writer.AddDexFileSource(dex_filename, dex_filename)) { | 
 |         return false; | 
 |       } | 
 |     } | 
 |     return DoWriteElf(vdex_file, oat_file, oat_writer, key_value_store, verify); | 
 |   } | 
 |  | 
 |   bool WriteElf(File* vdex_file, | 
 |                 File* oat_file, | 
 |                 File&& zip_fd, | 
 |                 const char* location, | 
 |                 SafeMap<std::string, std::string>& key_value_store, | 
 |                 bool verify) { | 
 |     TimingLogger timings("WriteElf", false, false); | 
 |     OatWriter oat_writer(/*compiling_boot_image*/false, | 
 |                          &timings, | 
 |                          /*profile_compilation_info*/nullptr); | 
 |     if (!oat_writer.AddZippedDexFilesSource(std::move(zip_fd), location)) { | 
 |       return false; | 
 |     } | 
 |     return DoWriteElf(vdex_file, oat_file, oat_writer, key_value_store, verify); | 
 |   } | 
 |  | 
 |   bool DoWriteElf(File* vdex_file, | 
 |                   File* oat_file, | 
 |                   OatWriter& oat_writer, | 
 |                   SafeMap<std::string, std::string>& key_value_store, | 
 |                   bool verify) { | 
 |     std::unique_ptr<ElfWriter> elf_writer = CreateElfWriterQuick( | 
 |         compiler_driver_->GetInstructionSet(), | 
 |         compiler_driver_->GetInstructionSetFeatures(), | 
 |         &compiler_driver_->GetCompilerOptions(), | 
 |         oat_file); | 
 |     elf_writer->Start(); | 
 |     OutputStream* oat_rodata = elf_writer->StartRoData(); | 
 |     std::unique_ptr<MemMap> opened_dex_files_map; | 
 |     std::vector<std::unique_ptr<const DexFile>> opened_dex_files; | 
 |     if (!oat_writer.WriteAndOpenDexFiles(kIsVdexEnabled ? vdex_file : oat_file, | 
 |                                          oat_rodata, | 
 |                                          compiler_driver_->GetInstructionSet(), | 
 |                                          compiler_driver_->GetInstructionSetFeatures(), | 
 |                                          &key_value_store, | 
 |                                          verify, | 
 |                                          &opened_dex_files_map, | 
 |                                          &opened_dex_files)) { | 
 |       return false; | 
 |     } | 
 |  | 
 |     Runtime* runtime = Runtime::Current(); | 
 |     ClassLinker* const class_linker = runtime->GetClassLinker(); | 
 |     std::vector<const DexFile*> dex_files; | 
 |     for (const std::unique_ptr<const DexFile>& dex_file : opened_dex_files) { | 
 |       dex_files.push_back(dex_file.get()); | 
 |       ScopedObjectAccess soa(Thread::Current()); | 
 |       class_linker->RegisterDexFile(*dex_file, nullptr); | 
 |     } | 
 |     linker::MultiOatRelativePatcher patcher(compiler_driver_->GetInstructionSet(), | 
 |                                             instruction_set_features_.get()); | 
 |     oat_writer.Initialize(compiler_driver_.get(), nullptr, dex_files); | 
 |     oat_writer.PrepareLayout(&patcher); | 
 |     size_t rodata_size = oat_writer.GetOatHeader().GetExecutableOffset(); | 
 |     size_t text_size = oat_writer.GetOatSize() - rodata_size; | 
 |     elf_writer->PrepareDynamicSection(rodata_size, | 
 |                                       text_size, | 
 |                                       oat_writer.GetBssSize(), | 
 |                                       oat_writer.GetBssRootsOffset()); | 
 |  | 
 |     if (kIsVdexEnabled) { | 
 |       std::unique_ptr<BufferedOutputStream> vdex_out( | 
 |             MakeUnique<BufferedOutputStream>(MakeUnique<FileOutputStream>(vdex_file))); | 
 |       if (!oat_writer.WriteVerifierDeps(vdex_out.get(), nullptr)) { | 
 |         return false; | 
 |       } | 
 |       if (!oat_writer.WriteChecksumsAndVdexHeader(vdex_out.get())) { | 
 |         return false; | 
 |       } | 
 |     } | 
 |  | 
 |     if (!oat_writer.WriteRodata(oat_rodata)) { | 
 |       return false; | 
 |     } | 
 |     elf_writer->EndRoData(oat_rodata); | 
 |  | 
 |     OutputStream* text = elf_writer->StartText(); | 
 |     if (!oat_writer.WriteCode(text)) { | 
 |       return false; | 
 |     } | 
 |     elf_writer->EndText(text); | 
 |  | 
 |     if (!oat_writer.WriteHeader(elf_writer->GetStream(), 42U, 4096U, 0)) { | 
 |       return false; | 
 |     } | 
 |  | 
 |     elf_writer->WriteDynamicSection(); | 
 |     elf_writer->WriteDebugInfo(oat_writer.GetMethodDebugInfo()); | 
 |     elf_writer->WritePatchLocations(oat_writer.GetAbsolutePatchLocations()); | 
 |  | 
 |     if (!elf_writer->End()) { | 
 |       return false; | 
 |     } | 
 |  | 
 |     opened_dex_files_maps_.emplace_back(std::move(opened_dex_files_map)); | 
 |     for (std::unique_ptr<const DexFile>& dex_file : opened_dex_files) { | 
 |       opened_dex_files_.emplace_back(dex_file.release()); | 
 |     } | 
 |     return true; | 
 |   } | 
 |  | 
 |   void TestDexFileInput(bool verify, bool low_4gb); | 
 |   void TestZipFileInput(bool verify); | 
 |  | 
 |   std::unique_ptr<const InstructionSetFeatures> insn_features_; | 
 |   std::unique_ptr<QuickCompilerCallbacks> callbacks_; | 
 |  | 
 |   std::vector<std::unique_ptr<MemMap>> opened_dex_files_maps_; | 
 |   std::vector<std::unique_ptr<const DexFile>> opened_dex_files_; | 
 | }; | 
 |  | 
 | class ZipBuilder { | 
 |  public: | 
 |   explicit ZipBuilder(File* zip_file) : zip_file_(zip_file) { } | 
 |  | 
 |   bool AddFile(const char* location, const void* data, size_t size) { | 
 |     off_t offset = lseek(zip_file_->Fd(), 0, SEEK_CUR); | 
 |     if (offset == static_cast<off_t>(-1)) { | 
 |       return false; | 
 |     } | 
 |  | 
 |     ZipFileHeader file_header; | 
 |     file_header.crc32 = crc32(0u, reinterpret_cast<const Bytef*>(data), size); | 
 |     file_header.compressed_size = size; | 
 |     file_header.uncompressed_size = size; | 
 |     file_header.filename_length = strlen(location); | 
 |  | 
 |     if (!zip_file_->WriteFully(&file_header, sizeof(file_header)) || | 
 |         !zip_file_->WriteFully(location, file_header.filename_length) || | 
 |         !zip_file_->WriteFully(data, size)) { | 
 |       return false; | 
 |     } | 
 |  | 
 |     CentralDirectoryFileHeader cdfh; | 
 |     cdfh.crc32 = file_header.crc32; | 
 |     cdfh.compressed_size = size; | 
 |     cdfh.uncompressed_size = size; | 
 |     cdfh.filename_length = file_header.filename_length; | 
 |     cdfh.relative_offset_of_local_file_header = offset; | 
 |     file_data_.push_back(FileData { cdfh, location }); | 
 |     return true; | 
 |   } | 
 |  | 
 |   bool Finish() { | 
 |     off_t offset = lseek(zip_file_->Fd(), 0, SEEK_CUR); | 
 |     if (offset == static_cast<off_t>(-1)) { | 
 |       return false; | 
 |     } | 
 |  | 
 |     size_t central_directory_size = 0u; | 
 |     for (const FileData& file_data : file_data_) { | 
 |       if (!zip_file_->WriteFully(&file_data.cdfh, sizeof(file_data.cdfh)) || | 
 |           !zip_file_->WriteFully(file_data.location, file_data.cdfh.filename_length)) { | 
 |         return false; | 
 |       } | 
 |       central_directory_size += sizeof(file_data.cdfh) + file_data.cdfh.filename_length; | 
 |     } | 
 |     EndOfCentralDirectoryRecord eocd_record; | 
 |     eocd_record.number_of_central_directory_records_on_this_disk = file_data_.size(); | 
 |     eocd_record.total_number_of_central_directory_records = file_data_.size(); | 
 |     eocd_record.size_of_central_directory = central_directory_size; | 
 |     eocd_record.offset_of_start_of_central_directory = offset; | 
 |     return | 
 |         zip_file_->WriteFully(&eocd_record, sizeof(eocd_record)) && | 
 |         zip_file_->Flush() == 0; | 
 |   } | 
 |  | 
 |  private: | 
 |   struct PACKED(1) ZipFileHeader { | 
 |     uint32_t signature = 0x04034b50; | 
 |     uint16_t version_needed_to_extract = 10; | 
 |     uint16_t general_purpose_bit_flag = 0; | 
 |     uint16_t compression_method = 0;            // 0 = store only. | 
 |     uint16_t file_last_modification_time = 0u; | 
 |     uint16_t file_last_modification_date = 0u; | 
 |     uint32_t crc32; | 
 |     uint32_t compressed_size; | 
 |     uint32_t uncompressed_size; | 
 |     uint16_t filename_length; | 
 |     uint16_t extra_field_length = 0u;           // No extra fields. | 
 |   }; | 
 |  | 
 |   struct PACKED(1) CentralDirectoryFileHeader { | 
 |     uint32_t signature = 0x02014b50; | 
 |     uint16_t version_made_by = 10; | 
 |     uint16_t version_needed_to_extract = 10; | 
 |     uint16_t general_purpose_bit_flag = 0; | 
 |     uint16_t compression_method = 0;            // 0 = store only. | 
 |     uint16_t file_last_modification_time = 0u; | 
 |     uint16_t file_last_modification_date = 0u; | 
 |     uint32_t crc32; | 
 |     uint32_t compressed_size; | 
 |     uint32_t uncompressed_size; | 
 |     uint16_t filename_length; | 
 |     uint16_t extra_field_length = 0u;           // No extra fields. | 
 |     uint16_t file_comment_length = 0u;          // No file comment. | 
 |     uint16_t disk_number_where_file_starts = 0u; | 
 |     uint16_t internal_file_attributes = 0u; | 
 |     uint32_t external_file_attributes = 0u; | 
 |     uint32_t relative_offset_of_local_file_header; | 
 |   }; | 
 |  | 
 |   struct PACKED(1) EndOfCentralDirectoryRecord { | 
 |     uint32_t signature = 0x06054b50; | 
 |     uint16_t number_of_this_disk = 0u; | 
 |     uint16_t disk_where_central_directory_starts = 0u; | 
 |     uint16_t number_of_central_directory_records_on_this_disk; | 
 |     uint16_t total_number_of_central_directory_records; | 
 |     uint32_t size_of_central_directory; | 
 |     uint32_t offset_of_start_of_central_directory; | 
 |     uint16_t comment_length = 0u;               // No file comment. | 
 |   }; | 
 |  | 
 |   struct FileData { | 
 |     CentralDirectoryFileHeader cdfh; | 
 |     const char* location; | 
 |   }; | 
 |  | 
 |   File* zip_file_; | 
 |   std::vector<FileData> file_data_; | 
 | }; | 
 |  | 
 | TEST_F(OatTest, WriteRead) { | 
 |   TimingLogger timings("OatTest::WriteRead", false, false); | 
 |   ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); | 
 |  | 
 |   // TODO: make selectable. | 
 |   Compiler::Kind compiler_kind = Compiler::kQuick; | 
 |   InstructionSet insn_set = kIsTargetBuild ? kThumb2 : kX86; | 
 |   std::string error_msg; | 
 |   SetupCompiler(compiler_kind, insn_set, std::vector<std::string>(), /*out*/ &error_msg); | 
 |  | 
 |   jobject class_loader = nullptr; | 
 |   if (kCompile) { | 
 |     TimingLogger timings2("OatTest::WriteRead", false, false); | 
 |     compiler_driver_->SetDexFilesForOatFile(class_linker->GetBootClassPath()); | 
 |     compiler_driver_->CompileAll( | 
 |         class_loader, class_linker->GetBootClassPath(), /* verifier_deps */ nullptr, &timings2); | 
 |   } | 
 |  | 
 |   ScratchFile tmp_oat, tmp_vdex(tmp_oat, ".vdex"); | 
 |   SafeMap<std::string, std::string> key_value_store; | 
 |   key_value_store.Put(OatHeader::kImageLocationKey, "lue.art"); | 
 |   bool success = WriteElf(tmp_vdex.GetFile(), | 
 |                           tmp_oat.GetFile(), | 
 |                           class_linker->GetBootClassPath(), | 
 |                           key_value_store, | 
 |                           false); | 
 |   ASSERT_TRUE(success); | 
 |  | 
 |   if (kCompile) {  // OatWriter strips the code, regenerate to compare | 
 |     compiler_driver_->CompileAll( | 
 |         class_loader, class_linker->GetBootClassPath(), /* verifier_deps */ nullptr, &timings); | 
 |   } | 
 |   std::unique_ptr<OatFile> oat_file(OatFile::Open(tmp_oat.GetFilename(), | 
 |                                                   tmp_oat.GetFilename(), | 
 |                                                   nullptr, | 
 |                                                   nullptr, | 
 |                                                   false, | 
 |                                                   /*low_4gb*/true, | 
 |                                                   nullptr, | 
 |                                                   &error_msg)); | 
 |   ASSERT_TRUE(oat_file.get() != nullptr) << error_msg; | 
 |   const OatHeader& oat_header = oat_file->GetOatHeader(); | 
 |   ASSERT_TRUE(oat_header.IsValid()); | 
 |   ASSERT_EQ(class_linker->GetBootClassPath().size(), oat_header.GetDexFileCount());  // core | 
 |   ASSERT_EQ(42U, oat_header.GetImageFileLocationOatChecksum()); | 
 |   ASSERT_EQ(4096U, oat_header.GetImageFileLocationOatDataBegin()); | 
 |   ASSERT_EQ("lue.art", std::string(oat_header.GetStoreValueByKey(OatHeader::kImageLocationKey))); | 
 |  | 
 |   ASSERT_TRUE(java_lang_dex_file_ != nullptr); | 
 |   const DexFile& dex_file = *java_lang_dex_file_; | 
 |   uint32_t dex_file_checksum = dex_file.GetLocationChecksum(); | 
 |   const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_file.GetLocation().c_str(), | 
 |                                                                     &dex_file_checksum); | 
 |   ASSERT_TRUE(oat_dex_file != nullptr); | 
 |   CHECK_EQ(dex_file.GetLocationChecksum(), oat_dex_file->GetDexFileLocationChecksum()); | 
 |   ScopedObjectAccess soa(Thread::Current()); | 
 |   auto pointer_size = class_linker->GetImagePointerSize(); | 
 |   for (size_t i = 0; i < dex_file.NumClassDefs(); i++) { | 
 |     const DexFile::ClassDef& class_def = dex_file.GetClassDef(i); | 
 |     const uint8_t* class_data = dex_file.GetClassData(class_def); | 
 |  | 
 |     size_t num_virtual_methods = 0; | 
 |     if (class_data != nullptr) { | 
 |       ClassDataItemIterator it(dex_file, class_data); | 
 |       num_virtual_methods = it.NumVirtualMethods(); | 
 |     } | 
 |  | 
 |     const char* descriptor = dex_file.GetClassDescriptor(class_def); | 
 |     mirror::Class* klass = class_linker->FindClass(soa.Self(), | 
 |                                                    descriptor, | 
 |                                                    ScopedNullHandle<mirror::ClassLoader>()); | 
 |  | 
 |     const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(i); | 
 |     CHECK_EQ(mirror::Class::Status::kStatusNotReady, oat_class.GetStatus()) << descriptor; | 
 |     CHECK_EQ(kCompile ? OatClassType::kOatClassAllCompiled : OatClassType::kOatClassNoneCompiled, | 
 |              oat_class.GetType()) << descriptor; | 
 |  | 
 |     size_t method_index = 0; | 
 |     for (auto& m : klass->GetDirectMethods(pointer_size)) { | 
 |       CheckMethod(&m, oat_class.GetOatMethod(method_index), dex_file); | 
 |       ++method_index; | 
 |     } | 
 |     size_t visited_virtuals = 0; | 
 |     // TODO We should also check copied methods in this test. | 
 |     for (auto& m : klass->GetDeclaredVirtualMethods(pointer_size)) { | 
 |       if (!klass->IsInterface()) { | 
 |         EXPECT_FALSE(m.IsCopied()); | 
 |       } | 
 |       CheckMethod(&m, oat_class.GetOatMethod(method_index), dex_file); | 
 |       ++method_index; | 
 |       ++visited_virtuals; | 
 |     } | 
 |     EXPECT_EQ(visited_virtuals, num_virtual_methods); | 
 |   } | 
 | } | 
 |  | 
 | TEST_F(OatTest, OatHeaderSizeCheck) { | 
 |   // If this test is failing and you have to update these constants, | 
 |   // it is time to update OatHeader::kOatVersion | 
 |   EXPECT_EQ(72U, sizeof(OatHeader)); | 
 |   EXPECT_EQ(4U, sizeof(OatMethodOffsets)); | 
 |   EXPECT_EQ(20U, sizeof(OatQuickMethodHeader)); | 
 |   EXPECT_EQ(164 * static_cast<size_t>(GetInstructionSetPointerSize(kRuntimeISA)), | 
 |             sizeof(QuickEntryPoints)); | 
 | } | 
 |  | 
 | TEST_F(OatTest, OatHeaderIsValid) { | 
 |   InstructionSet insn_set = kX86; | 
 |   std::string error_msg; | 
 |   std::unique_ptr<const InstructionSetFeatures> insn_features( | 
 |     InstructionSetFeatures::FromVariant(insn_set, "default", &error_msg)); | 
 |   ASSERT_TRUE(insn_features.get() != nullptr) << error_msg; | 
 |   std::unique_ptr<OatHeader> oat_header(OatHeader::Create(insn_set, | 
 |                                                           insn_features.get(), | 
 |                                                           0u, | 
 |                                                           nullptr)); | 
 |   ASSERT_NE(oat_header.get(), nullptr); | 
 |   ASSERT_TRUE(oat_header->IsValid()); | 
 |  | 
 |   char* magic = const_cast<char*>(oat_header->GetMagic()); | 
 |   strcpy(magic, "");  // bad magic | 
 |   ASSERT_FALSE(oat_header->IsValid()); | 
 |   strcpy(magic, "oat\n000");  // bad version | 
 |   ASSERT_FALSE(oat_header->IsValid()); | 
 | } | 
 |  | 
 | TEST_F(OatTest, EmptyTextSection) { | 
 |   TimingLogger timings("OatTest::EmptyTextSection", false, false); | 
 |  | 
 |   // TODO: make selectable. | 
 |   Compiler::Kind compiler_kind = Compiler::kQuick; | 
 |   InstructionSet insn_set = kRuntimeISA; | 
 |   if (insn_set == kArm) insn_set = kThumb2; | 
 |   std::string error_msg; | 
 |   std::vector<std::string> compiler_options; | 
 |   compiler_options.push_back("--compiler-filter=verify-at-runtime"); | 
 |   SetupCompiler(compiler_kind, insn_set, compiler_options, /*out*/ &error_msg); | 
 |  | 
 |   jobject class_loader; | 
 |   { | 
 |     ScopedObjectAccess soa(Thread::Current()); | 
 |     class_loader = LoadDex("Main"); | 
 |   } | 
 |   ASSERT_TRUE(class_loader != nullptr); | 
 |   std::vector<const DexFile*> dex_files = GetDexFiles(class_loader); | 
 |   ASSERT_TRUE(!dex_files.empty()); | 
 |  | 
 |   ClassLinker* const class_linker = Runtime::Current()->GetClassLinker(); | 
 |   for (const DexFile* dex_file : dex_files) { | 
 |     ScopedObjectAccess soa(Thread::Current()); | 
 |     class_linker->RegisterDexFile(*dex_file, | 
 |                                   soa.Decode<mirror::ClassLoader>(class_loader).Ptr()); | 
 |   } | 
 |   compiler_driver_->SetDexFilesForOatFile(dex_files); | 
 |   compiler_driver_->CompileAll(class_loader, dex_files, /* verifier_deps */ nullptr, &timings); | 
 |  | 
 |   ScratchFile tmp_oat, tmp_vdex(tmp_oat, ".vdex"); | 
 |   SafeMap<std::string, std::string> key_value_store; | 
 |   key_value_store.Put(OatHeader::kImageLocationKey, "test.art"); | 
 |   bool success = WriteElf(tmp_vdex.GetFile(), tmp_oat.GetFile(), dex_files, key_value_store, false); | 
 |   ASSERT_TRUE(success); | 
 |  | 
 |   std::unique_ptr<OatFile> oat_file(OatFile::Open(tmp_oat.GetFilename(), | 
 |                                                   tmp_oat.GetFilename(), | 
 |                                                   nullptr, | 
 |                                                   nullptr, | 
 |                                                   false, | 
 |                                                   /*low_4gb*/false, | 
 |                                                   nullptr, | 
 |                                                   &error_msg)); | 
 |   ASSERT_TRUE(oat_file != nullptr); | 
 |   EXPECT_LT(static_cast<size_t>(oat_file->Size()), | 
 |             static_cast<size_t>(tmp_oat.GetFile()->GetLength())); | 
 | } | 
 |  | 
 | static void MaybeModifyDexFileToFail(bool verify, std::unique_ptr<const DexFile>& data) { | 
 |   // If in verify mode (= fail the verifier mode), make sure we fail early. We'll fail already | 
 |   // because of the missing map, but that may lead to out of bounds reads. | 
 |   if (verify) { | 
 |     const_cast<DexFile::Header*>(&data->GetHeader())->checksum_++; | 
 |   } | 
 | } | 
 |  | 
 | void OatTest::TestDexFileInput(bool verify, bool low_4gb) { | 
 |   TimingLogger timings("OatTest::DexFileInput", false, false); | 
 |  | 
 |   std::vector<const char*> input_filenames; | 
 |  | 
 |   ScratchFile dex_file1; | 
 |   TestDexFileBuilder builder1; | 
 |   builder1.AddField("Lsome.TestClass;", "int", "someField"); | 
 |   builder1.AddMethod("Lsome.TestClass;", "()I", "foo"); | 
 |   std::unique_ptr<const DexFile> dex_file1_data = builder1.Build(dex_file1.GetFilename()); | 
 |  | 
 |   MaybeModifyDexFileToFail(verify, dex_file1_data); | 
 |  | 
 |   bool success = dex_file1.GetFile()->WriteFully(&dex_file1_data->GetHeader(), | 
 |                                                  dex_file1_data->GetHeader().file_size_); | 
 |   ASSERT_TRUE(success); | 
 |   success = dex_file1.GetFile()->Flush() == 0; | 
 |   ASSERT_TRUE(success); | 
 |   input_filenames.push_back(dex_file1.GetFilename().c_str()); | 
 |  | 
 |   ScratchFile dex_file2; | 
 |   TestDexFileBuilder builder2; | 
 |   builder2.AddField("Land.AnotherTestClass;", "boolean", "someOtherField"); | 
 |   builder2.AddMethod("Land.AnotherTestClass;", "()J", "bar"); | 
 |   std::unique_ptr<const DexFile> dex_file2_data = builder2.Build(dex_file2.GetFilename()); | 
 |  | 
 |   MaybeModifyDexFileToFail(verify, dex_file2_data); | 
 |  | 
 |   success = dex_file2.GetFile()->WriteFully(&dex_file2_data->GetHeader(), | 
 |                                             dex_file2_data->GetHeader().file_size_); | 
 |   ASSERT_TRUE(success); | 
 |   success = dex_file2.GetFile()->Flush() == 0; | 
 |   ASSERT_TRUE(success); | 
 |   input_filenames.push_back(dex_file2.GetFilename().c_str()); | 
 |  | 
 |   ScratchFile oat_file, vdex_file(oat_file, ".vdex"); | 
 |   SafeMap<std::string, std::string> key_value_store; | 
 |   key_value_store.Put(OatHeader::kImageLocationKey, "test.art"); | 
 |   success = WriteElf(vdex_file.GetFile(), | 
 |                      oat_file.GetFile(), | 
 |                      input_filenames, | 
 |                      key_value_store, | 
 |                      verify); | 
 |  | 
 |   // In verify mode, we expect failure. | 
 |   if (verify) { | 
 |     ASSERT_FALSE(success); | 
 |     return; | 
 |   } | 
 |  | 
 |   ASSERT_TRUE(success); | 
 |  | 
 |   std::string error_msg; | 
 |   std::unique_ptr<OatFile> opened_oat_file(OatFile::Open(oat_file.GetFilename(), | 
 |                                                          oat_file.GetFilename(), | 
 |                                                          nullptr, | 
 |                                                          nullptr, | 
 |                                                          false, | 
 |                                                          low_4gb, | 
 |                                                          nullptr, | 
 |                                                          &error_msg)); | 
 |   if (low_4gb) { | 
 |     uintptr_t begin = reinterpret_cast<uintptr_t>(opened_oat_file->Begin()); | 
 |     EXPECT_EQ(begin, static_cast<uint32_t>(begin)); | 
 |   } | 
 |   ASSERT_TRUE(opened_oat_file != nullptr); | 
 |   ASSERT_EQ(2u, opened_oat_file->GetOatDexFiles().size()); | 
 |   std::unique_ptr<const DexFile> opened_dex_file1 = | 
 |       opened_oat_file->GetOatDexFiles()[0]->OpenDexFile(&error_msg); | 
 |   std::unique_ptr<const DexFile> opened_dex_file2 = | 
 |       opened_oat_file->GetOatDexFiles()[1]->OpenDexFile(&error_msg); | 
 |  | 
 |   ASSERT_EQ(dex_file1_data->GetHeader().file_size_, opened_dex_file1->GetHeader().file_size_); | 
 |   ASSERT_EQ(0, memcmp(&dex_file1_data->GetHeader(), | 
 |                       &opened_dex_file1->GetHeader(), | 
 |                       dex_file1_data->GetHeader().file_size_)); | 
 |   ASSERT_EQ(dex_file1_data->GetLocation(), opened_dex_file1->GetLocation()); | 
 |  | 
 |   ASSERT_EQ(dex_file2_data->GetHeader().file_size_, opened_dex_file2->GetHeader().file_size_); | 
 |   ASSERT_EQ(0, memcmp(&dex_file2_data->GetHeader(), | 
 |                       &opened_dex_file2->GetHeader(), | 
 |                       dex_file2_data->GetHeader().file_size_)); | 
 |   ASSERT_EQ(dex_file2_data->GetLocation(), opened_dex_file2->GetLocation()); | 
 | } | 
 |  | 
 | TEST_F(OatTest, DexFileInputCheckOutput) { | 
 |   TestDexFileInput(false, /*low_4gb*/false); | 
 | } | 
 |  | 
 | TEST_F(OatTest, DexFileInputCheckOutputLow4GB) { | 
 |   TestDexFileInput(false, /*low_4gb*/true); | 
 | } | 
 |  | 
 | TEST_F(OatTest, DexFileInputCheckVerifier) { | 
 |   TestDexFileInput(true, /*low_4gb*/false); | 
 | } | 
 |  | 
 | void OatTest::TestZipFileInput(bool verify) { | 
 |   TimingLogger timings("OatTest::DexFileInput", false, false); | 
 |  | 
 |   ScratchFile zip_file; | 
 |   ZipBuilder zip_builder(zip_file.GetFile()); | 
 |  | 
 |   ScratchFile dex_file1; | 
 |   TestDexFileBuilder builder1; | 
 |   builder1.AddField("Lsome.TestClass;", "long", "someField"); | 
 |   builder1.AddMethod("Lsome.TestClass;", "()D", "foo"); | 
 |   std::unique_ptr<const DexFile> dex_file1_data = builder1.Build(dex_file1.GetFilename()); | 
 |  | 
 |   MaybeModifyDexFileToFail(verify, dex_file1_data); | 
 |  | 
 |   bool success = dex_file1.GetFile()->WriteFully(&dex_file1_data->GetHeader(), | 
 |                                                  dex_file1_data->GetHeader().file_size_); | 
 |   ASSERT_TRUE(success); | 
 |   success = dex_file1.GetFile()->Flush() == 0; | 
 |   ASSERT_TRUE(success); | 
 |   success = zip_builder.AddFile("classes.dex", | 
 |                                 &dex_file1_data->GetHeader(), | 
 |                                 dex_file1_data->GetHeader().file_size_); | 
 |   ASSERT_TRUE(success); | 
 |  | 
 |   ScratchFile dex_file2; | 
 |   TestDexFileBuilder builder2; | 
 |   builder2.AddField("Land.AnotherTestClass;", "boolean", "someOtherField"); | 
 |   builder2.AddMethod("Land.AnotherTestClass;", "()J", "bar"); | 
 |   std::unique_ptr<const DexFile> dex_file2_data = builder2.Build(dex_file2.GetFilename()); | 
 |  | 
 |   MaybeModifyDexFileToFail(verify, dex_file2_data); | 
 |  | 
 |   success = dex_file2.GetFile()->WriteFully(&dex_file2_data->GetHeader(), | 
 |                                             dex_file2_data->GetHeader().file_size_); | 
 |   ASSERT_TRUE(success); | 
 |   success = dex_file2.GetFile()->Flush() == 0; | 
 |   ASSERT_TRUE(success); | 
 |   success = zip_builder.AddFile("classes2.dex", | 
 |                                 &dex_file2_data->GetHeader(), | 
 |                                 dex_file2_data->GetHeader().file_size_); | 
 |   ASSERT_TRUE(success); | 
 |  | 
 |   success = zip_builder.Finish(); | 
 |   ASSERT_TRUE(success) << strerror(errno); | 
 |  | 
 |   SafeMap<std::string, std::string> key_value_store; | 
 |   key_value_store.Put(OatHeader::kImageLocationKey, "test.art"); | 
 |   { | 
 |     // Test using the AddDexFileSource() interface with the zip file. | 
 |     std::vector<const char*> input_filenames { zip_file.GetFilename().c_str() };  // NOLINT [readability/braces] [4] | 
 |  | 
 |     ScratchFile oat_file, vdex_file(oat_file, ".vdex"); | 
 |     success = WriteElf(vdex_file.GetFile(), oat_file.GetFile(), | 
 |                        input_filenames, key_value_store, verify); | 
 |  | 
 |     if (verify) { | 
 |       ASSERT_FALSE(success); | 
 |     } else { | 
 |       ASSERT_TRUE(success); | 
 |  | 
 |       std::string error_msg; | 
 |       std::unique_ptr<OatFile> opened_oat_file(OatFile::Open(oat_file.GetFilename(), | 
 |                                                              oat_file.GetFilename(), | 
 |                                                              nullptr, | 
 |                                                              nullptr, | 
 |                                                              false, | 
 |                                                              /*low_4gb*/false, | 
 |                                                              nullptr, | 
 |                                                              &error_msg)); | 
 |       ASSERT_TRUE(opened_oat_file != nullptr); | 
 |       ASSERT_EQ(2u, opened_oat_file->GetOatDexFiles().size()); | 
 |       std::unique_ptr<const DexFile> opened_dex_file1 = | 
 |           opened_oat_file->GetOatDexFiles()[0]->OpenDexFile(&error_msg); | 
 |       std::unique_ptr<const DexFile> opened_dex_file2 = | 
 |           opened_oat_file->GetOatDexFiles()[1]->OpenDexFile(&error_msg); | 
 |  | 
 |       ASSERT_EQ(dex_file1_data->GetHeader().file_size_, opened_dex_file1->GetHeader().file_size_); | 
 |       ASSERT_EQ(0, memcmp(&dex_file1_data->GetHeader(), | 
 |                           &opened_dex_file1->GetHeader(), | 
 |                           dex_file1_data->GetHeader().file_size_)); | 
 |       ASSERT_EQ(DexFile::GetMultiDexLocation(0, zip_file.GetFilename().c_str()), | 
 |                 opened_dex_file1->GetLocation()); | 
 |  | 
 |       ASSERT_EQ(dex_file2_data->GetHeader().file_size_, opened_dex_file2->GetHeader().file_size_); | 
 |       ASSERT_EQ(0, memcmp(&dex_file2_data->GetHeader(), | 
 |                           &opened_dex_file2->GetHeader(), | 
 |                           dex_file2_data->GetHeader().file_size_)); | 
 |       ASSERT_EQ(DexFile::GetMultiDexLocation(1, zip_file.GetFilename().c_str()), | 
 |                 opened_dex_file2->GetLocation()); | 
 |     } | 
 |   } | 
 |  | 
 |   { | 
 |     // Test using the AddZipDexFileSource() interface with the zip file handle. | 
 |     File zip_fd(dup(zip_file.GetFd()), /* check_usage */ false); | 
 |     ASSERT_NE(-1, zip_fd.Fd()); | 
 |  | 
 |     ScratchFile oat_file, vdex_file(oat_file, ".vdex"); | 
 |     success = WriteElf(vdex_file.GetFile(), | 
 |                        oat_file.GetFile(), | 
 |                        std::move(zip_fd), | 
 |                        zip_file.GetFilename().c_str(), | 
 |                        key_value_store, | 
 |                        verify); | 
 |     if (verify) { | 
 |       ASSERT_FALSE(success); | 
 |     } else { | 
 |       ASSERT_TRUE(success); | 
 |  | 
 |       std::string error_msg; | 
 |       std::unique_ptr<OatFile> opened_oat_file(OatFile::Open(oat_file.GetFilename(), | 
 |                                                              oat_file.GetFilename(), | 
 |                                                              nullptr, | 
 |                                                              nullptr, | 
 |                                                              false, | 
 |                                                              /*low_4gb*/false, | 
 |                                                              nullptr, | 
 |                                                              &error_msg)); | 
 |       ASSERT_TRUE(opened_oat_file != nullptr); | 
 |       ASSERT_EQ(2u, opened_oat_file->GetOatDexFiles().size()); | 
 |       std::unique_ptr<const DexFile> opened_dex_file1 = | 
 |           opened_oat_file->GetOatDexFiles()[0]->OpenDexFile(&error_msg); | 
 |       std::unique_ptr<const DexFile> opened_dex_file2 = | 
 |           opened_oat_file->GetOatDexFiles()[1]->OpenDexFile(&error_msg); | 
 |  | 
 |       ASSERT_EQ(dex_file1_data->GetHeader().file_size_, opened_dex_file1->GetHeader().file_size_); | 
 |       ASSERT_EQ(0, memcmp(&dex_file1_data->GetHeader(), | 
 |                           &opened_dex_file1->GetHeader(), | 
 |                           dex_file1_data->GetHeader().file_size_)); | 
 |       ASSERT_EQ(DexFile::GetMultiDexLocation(0, zip_file.GetFilename().c_str()), | 
 |                 opened_dex_file1->GetLocation()); | 
 |  | 
 |       ASSERT_EQ(dex_file2_data->GetHeader().file_size_, opened_dex_file2->GetHeader().file_size_); | 
 |       ASSERT_EQ(0, memcmp(&dex_file2_data->GetHeader(), | 
 |                           &opened_dex_file2->GetHeader(), | 
 |                           dex_file2_data->GetHeader().file_size_)); | 
 |       ASSERT_EQ(DexFile::GetMultiDexLocation(1, zip_file.GetFilename().c_str()), | 
 |                 opened_dex_file2->GetLocation()); | 
 |     } | 
 |   } | 
 | } | 
 |  | 
 | TEST_F(OatTest, ZipFileInputCheckOutput) { | 
 |   TestZipFileInput(false); | 
 | } | 
 |  | 
 | TEST_F(OatTest, ZipFileInputCheckVerifier) { | 
 |   TestZipFileInput(true); | 
 | } | 
 |  | 
 | TEST_F(OatTest, UpdateChecksum) { | 
 |   InstructionSet insn_set = kX86; | 
 |   std::string error_msg; | 
 |   std::unique_ptr<const InstructionSetFeatures> insn_features( | 
 |     InstructionSetFeatures::FromVariant(insn_set, "default", &error_msg)); | 
 |   ASSERT_TRUE(insn_features.get() != nullptr) << error_msg; | 
 |   std::unique_ptr<OatHeader> oat_header(OatHeader::Create(insn_set, | 
 |                                                           insn_features.get(), | 
 |                                                           0u, | 
 |                                                           nullptr)); | 
 |   // The starting adler32 value is 1. | 
 |   EXPECT_EQ(1U, oat_header->GetChecksum()); | 
 |  | 
 |   oat_header->UpdateChecksum(OatHeader::kOatMagic, sizeof(OatHeader::kOatMagic)); | 
 |   EXPECT_EQ(64291151U, oat_header->GetChecksum()); | 
 |  | 
 |   // Make sure that null data does not reset the checksum. | 
 |   oat_header->UpdateChecksum(nullptr, 0); | 
 |   EXPECT_EQ(64291151U, oat_header->GetChecksum()); | 
 |  | 
 |   oat_header->UpdateChecksum(OatHeader::kOatMagic, sizeof(OatHeader::kOatMagic)); | 
 |   EXPECT_EQ(216138397U, oat_header->GetChecksum()); | 
 | } | 
 |  | 
 | }  // namespace art |