| /* |
| * 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 <stdio.h> |
| #include <stdlib.h> |
| |
| #include <fstream> |
| #include <iostream> |
| #include <map> |
| #include <set> |
| #include <string> |
| #include <unordered_map> |
| #include <vector> |
| |
| #include "arch/instruction_set_features.h" |
| #include "art_field-inl.h" |
| #include "art_method-inl.h" |
| #include "base/stl_util.h" |
| #include "base/unix_file/fd_file.h" |
| #include "class_linker.h" |
| #include "class_linker-inl.h" |
| #include "debug/elf_debug_writer.h" |
| #include "debug/method_debug_info.h" |
| #include "dex_file-inl.h" |
| #include "dex_instruction.h" |
| #include "disassembler.h" |
| #include "elf_builder.h" |
| #include "gc_map.h" |
| #include "gc/space/image_space.h" |
| #include "gc/space/large_object_space.h" |
| #include "gc/space/space-inl.h" |
| #include "image-inl.h" |
| #include "indenter.h" |
| #include "linker/buffered_output_stream.h" |
| #include "linker/file_output_stream.h" |
| #include "mapping_table.h" |
| #include "mirror/array-inl.h" |
| #include "mirror/class-inl.h" |
| #include "mirror/dex_cache-inl.h" |
| #include "mirror/object-inl.h" |
| #include "mirror/object_array-inl.h" |
| #include "oat.h" |
| #include "oat_file-inl.h" |
| #include "oat_file_manager.h" |
| #include "os.h" |
| #include "safe_map.h" |
| #include "scoped_thread_state_change.h" |
| #include "stack_map.h" |
| #include "ScopedLocalRef.h" |
| #include "thread_list.h" |
| #include "verifier/dex_gc_map.h" |
| #include "verifier/method_verifier.h" |
| #include "vmap_table.h" |
| #include "well_known_classes.h" |
| |
| #include <sys/stat.h> |
| #include "cmdline.h" |
| |
| namespace art { |
| |
| const char* image_methods_descriptions_[] = { |
| "kResolutionMethod", |
| "kImtConflictMethod", |
| "kImtUnimplementedMethod", |
| "kCalleeSaveMethod", |
| "kRefsOnlySaveMethod", |
| "kRefsAndArgsSaveMethod", |
| }; |
| |
| const char* image_roots_descriptions_[] = { |
| "kDexCaches", |
| "kClassRoots", |
| }; |
| |
| // Map is so that we don't allocate multiple dex files for the same OatDexFile. |
| static std::map<const OatFile::OatDexFile*, |
| std::unique_ptr<const DexFile>> opened_dex_files; |
| |
| const DexFile* OpenDexFile(const OatFile::OatDexFile* oat_dex_file, std::string* error_msg) { |
| DCHECK(oat_dex_file != nullptr); |
| auto it = opened_dex_files.find(oat_dex_file); |
| if (it != opened_dex_files.end()) { |
| return it->second.get(); |
| } |
| const DexFile* ret = oat_dex_file->OpenDexFile(error_msg).release(); |
| opened_dex_files.emplace(oat_dex_file, std::unique_ptr<const DexFile>(ret)); |
| return ret; |
| } |
| |
| template <typename ElfTypes> |
| class OatSymbolizer FINAL { |
| public: |
| OatSymbolizer(const OatFile* oat_file, const std::string& output_name, bool no_bits) : |
| oat_file_(oat_file), |
| builder_(nullptr), |
| output_name_(output_name.empty() ? "symbolized.oat" : output_name), |
| no_bits_(no_bits) { |
| } |
| |
| bool Symbolize() { |
| const InstructionSet isa = oat_file_->GetOatHeader().GetInstructionSet(); |
| const InstructionSetFeatures* features = InstructionSetFeatures::FromBitmap( |
| isa, oat_file_->GetOatHeader().GetInstructionSetFeaturesBitmap()); |
| |
| File* elf_file = OS::CreateEmptyFile(output_name_.c_str()); |
| std::unique_ptr<BufferedOutputStream> output_stream( |
| MakeUnique<BufferedOutputStream>(MakeUnique<FileOutputStream>(elf_file))); |
| builder_.reset(new ElfBuilder<ElfTypes>(isa, features, output_stream.get())); |
| |
| builder_->Start(); |
| |
| auto* rodata = builder_->GetRoData(); |
| auto* text = builder_->GetText(); |
| auto* bss = builder_->GetBss(); |
| |
| const uint8_t* rodata_begin = oat_file_->Begin(); |
| const size_t rodata_size = oat_file_->GetOatHeader().GetExecutableOffset(); |
| if (no_bits_) { |
| rodata->WriteNoBitsSection(rodata_size); |
| } else { |
| rodata->Start(); |
| rodata->WriteFully(rodata_begin, rodata_size); |
| rodata->End(); |
| } |
| |
| const uint8_t* text_begin = oat_file_->Begin() + rodata_size; |
| const size_t text_size = oat_file_->End() - text_begin; |
| if (no_bits_) { |
| text->WriteNoBitsSection(text_size); |
| } else { |
| text->Start(); |
| text->WriteFully(text_begin, text_size); |
| text->End(); |
| } |
| |
| if (oat_file_->BssSize() != 0) { |
| bss->WriteNoBitsSection(oat_file_->BssSize()); |
| } |
| |
| if (isa == kMips || isa == kMips64) { |
| builder_->WriteMIPSabiflagsSection(); |
| } |
| builder_->PrepareDynamicSection( |
| elf_file->GetPath(), rodata_size, text_size, oat_file_->BssSize()); |
| builder_->WriteDynamicSection(); |
| |
| Walk(); |
| for (const auto& trampoline : debug::MakeTrampolineInfos(oat_file_->GetOatHeader())) { |
| method_debug_infos_.push_back(trampoline); |
| } |
| |
| debug::WriteDebugInfo(builder_.get(), |
| ArrayRef<const debug::MethodDebugInfo>(method_debug_infos_), |
| dwarf::DW_DEBUG_FRAME_FORMAT, |
| true /* write_oat_patches */); |
| |
| builder_->End(); |
| |
| return builder_->Good(); |
| } |
| |
| void Walk() { |
| std::vector<const OatFile::OatDexFile*> oat_dex_files = oat_file_->GetOatDexFiles(); |
| for (size_t i = 0; i < oat_dex_files.size(); i++) { |
| const OatFile::OatDexFile* oat_dex_file = oat_dex_files[i]; |
| CHECK(oat_dex_file != nullptr); |
| WalkOatDexFile(oat_dex_file); |
| } |
| } |
| |
| void WalkOatDexFile(const OatFile::OatDexFile* oat_dex_file) { |
| std::string error_msg; |
| const DexFile* const dex_file = OpenDexFile(oat_dex_file, &error_msg); |
| if (dex_file == nullptr) { |
| return; |
| } |
| for (size_t class_def_index = 0; |
| class_def_index < dex_file->NumClassDefs(); |
| class_def_index++) { |
| const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(class_def_index); |
| OatClassType type = oat_class.GetType(); |
| switch (type) { |
| case kOatClassAllCompiled: |
| case kOatClassSomeCompiled: |
| WalkOatClass(oat_class, *dex_file, class_def_index); |
| break; |
| |
| case kOatClassNoneCompiled: |
| case kOatClassMax: |
| // Ignore. |
| break; |
| } |
| } |
| } |
| |
| void WalkOatClass(const OatFile::OatClass& oat_class, |
| const DexFile& dex_file, |
| uint32_t class_def_index) { |
| const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
| const uint8_t* class_data = dex_file.GetClassData(class_def); |
| if (class_data == nullptr) { // empty class such as a marker interface? |
| return; |
| } |
| // Note: even if this is an interface or a native class, we still have to walk it, as there |
| // might be a static initializer. |
| ClassDataItemIterator it(dex_file, class_data); |
| uint32_t class_method_idx = 0; |
| for (; it.HasNextStaticField(); it.Next()) { /* skip */ } |
| for (; it.HasNextInstanceField(); it.Next()) { /* skip */ } |
| for (; it.HasNextDirectMethod() || it.HasNextVirtualMethod(); it.Next()) { |
| WalkOatMethod(oat_class.GetOatMethod(class_method_idx++), |
| dex_file, |
| class_def_index, |
| it.GetMemberIndex(), |
| it.GetMethodCodeItem(), |
| it.GetMethodAccessFlags()); |
| } |
| DCHECK(!it.HasNext()); |
| } |
| |
| void WalkOatMethod(const OatFile::OatMethod& oat_method, |
| const DexFile& dex_file, |
| uint32_t class_def_index, |
| uint32_t dex_method_index, |
| const DexFile::CodeItem* code_item, |
| uint32_t method_access_flags) { |
| if ((method_access_flags & kAccAbstract) != 0) { |
| // Abstract method, no code. |
| return; |
| } |
| const OatHeader& oat_header = oat_file_->GetOatHeader(); |
| const OatQuickMethodHeader* method_header = oat_method.GetOatQuickMethodHeader(); |
| if (method_header == nullptr || method_header->GetCodeSize() == 0) { |
| // No code. |
| return; |
| } |
| |
| debug::MethodDebugInfo info = debug::MethodDebugInfo(); |
| info.trampoline_name = nullptr; |
| info.dex_file = &dex_file; |
| info.class_def_index = class_def_index; |
| info.dex_method_index = dex_method_index; |
| info.access_flags = method_access_flags; |
| info.code_item = code_item; |
| info.isa = oat_header.GetInstructionSet(); |
| info.deduped = !seen_offsets_.insert(oat_method.GetCodeOffset()).second; |
| info.is_native_debuggable = oat_header.IsNativeDebuggable(); |
| info.is_optimized = method_header->IsOptimized(); |
| info.is_code_address_text_relative = true; |
| info.code_address = oat_method.GetCodeOffset() - oat_header.GetExecutableOffset(); |
| info.code_size = method_header->GetCodeSize(); |
| info.frame_size_in_bytes = method_header->GetFrameSizeInBytes(); |
| info.code_info = info.is_optimized ? method_header->GetOptimizedCodeInfoPtr() : nullptr; |
| info.cfi = ArrayRef<uint8_t>(); |
| method_debug_infos_.push_back(info); |
| } |
| |
| private: |
| const OatFile* oat_file_; |
| std::unique_ptr<ElfBuilder<ElfTypes> > builder_; |
| std::vector<debug::MethodDebugInfo> method_debug_infos_; |
| std::unordered_set<uint32_t> seen_offsets_; |
| const std::string output_name_; |
| bool no_bits_; |
| }; |
| |
| class OatDumperOptions { |
| public: |
| OatDumperOptions(bool dump_raw_mapping_table, |
| bool dump_raw_gc_map, |
| bool dump_vmap, |
| bool dump_code_info_stack_maps, |
| bool disassemble_code, |
| bool absolute_addresses, |
| const char* class_filter, |
| const char* method_filter, |
| bool list_classes, |
| bool list_methods, |
| bool dump_header_only, |
| const char* export_dex_location, |
| const char* app_image, |
| const char* app_oat, |
| uint32_t addr2instr) |
| : dump_raw_mapping_table_(dump_raw_mapping_table), |
| dump_raw_gc_map_(dump_raw_gc_map), |
| dump_vmap_(dump_vmap), |
| dump_code_info_stack_maps_(dump_code_info_stack_maps), |
| disassemble_code_(disassemble_code), |
| absolute_addresses_(absolute_addresses), |
| class_filter_(class_filter), |
| method_filter_(method_filter), |
| list_classes_(list_classes), |
| list_methods_(list_methods), |
| dump_header_only_(dump_header_only), |
| export_dex_location_(export_dex_location), |
| app_image_(app_image), |
| app_oat_(app_oat), |
| addr2instr_(addr2instr), |
| class_loader_(nullptr) {} |
| |
| const bool dump_raw_mapping_table_; |
| const bool dump_raw_gc_map_; |
| const bool dump_vmap_; |
| const bool dump_code_info_stack_maps_; |
| const bool disassemble_code_; |
| const bool absolute_addresses_; |
| const char* const class_filter_; |
| const char* const method_filter_; |
| const bool list_classes_; |
| const bool list_methods_; |
| const bool dump_header_only_; |
| const char* const export_dex_location_; |
| const char* const app_image_; |
| const char* const app_oat_; |
| uint32_t addr2instr_; |
| Handle<mirror::ClassLoader>* class_loader_; |
| }; |
| |
| class OatDumper { |
| public: |
| OatDumper(const OatFile& oat_file, const OatDumperOptions& options) |
| : oat_file_(oat_file), |
| oat_dex_files_(oat_file.GetOatDexFiles()), |
| options_(options), |
| resolved_addr2instr_(0), |
| instruction_set_(oat_file_.GetOatHeader().GetInstructionSet()), |
| disassembler_(Disassembler::Create(instruction_set_, |
| new DisassemblerOptions(options_.absolute_addresses_, |
| oat_file.Begin(), |
| true /* can_read_literals_ */))) { |
| CHECK(options_.class_loader_ != nullptr); |
| CHECK(options_.class_filter_ != nullptr); |
| CHECK(options_.method_filter_ != nullptr); |
| AddAllOffsets(); |
| } |
| |
| ~OatDumper() { |
| delete disassembler_; |
| } |
| |
| InstructionSet GetInstructionSet() { |
| return instruction_set_; |
| } |
| |
| bool Dump(std::ostream& os) { |
| bool success = true; |
| const OatHeader& oat_header = oat_file_.GetOatHeader(); |
| |
| os << "MAGIC:\n"; |
| os << oat_header.GetMagic() << "\n\n"; |
| |
| os << "LOCATION:\n"; |
| os << oat_file_.GetLocation() << "\n\n"; |
| |
| os << "CHECKSUM:\n"; |
| os << StringPrintf("0x%08x\n\n", oat_header.GetChecksum()); |
| |
| os << "INSTRUCTION SET:\n"; |
| os << oat_header.GetInstructionSet() << "\n\n"; |
| |
| { |
| std::unique_ptr<const InstructionSetFeatures> features( |
| InstructionSetFeatures::FromBitmap(oat_header.GetInstructionSet(), |
| oat_header.GetInstructionSetFeaturesBitmap())); |
| os << "INSTRUCTION SET FEATURES:\n"; |
| os << features->GetFeatureString() << "\n\n"; |
| } |
| |
| os << "DEX FILE COUNT:\n"; |
| os << oat_header.GetDexFileCount() << "\n\n"; |
| |
| #define DUMP_OAT_HEADER_OFFSET(label, offset) \ |
| os << label " OFFSET:\n"; \ |
| os << StringPrintf("0x%08x", oat_header.offset()); \ |
| if (oat_header.offset() != 0 && options_.absolute_addresses_) { \ |
| os << StringPrintf(" (%p)", oat_file_.Begin() + oat_header.offset()); \ |
| } \ |
| os << StringPrintf("\n\n"); |
| |
| DUMP_OAT_HEADER_OFFSET("EXECUTABLE", GetExecutableOffset); |
| DUMP_OAT_HEADER_OFFSET("INTERPRETER TO INTERPRETER BRIDGE", |
| GetInterpreterToInterpreterBridgeOffset); |
| DUMP_OAT_HEADER_OFFSET("INTERPRETER TO COMPILED CODE BRIDGE", |
| GetInterpreterToCompiledCodeBridgeOffset); |
| DUMP_OAT_HEADER_OFFSET("JNI DLSYM LOOKUP", |
| GetJniDlsymLookupOffset); |
| DUMP_OAT_HEADER_OFFSET("QUICK GENERIC JNI TRAMPOLINE", |
| GetQuickGenericJniTrampolineOffset); |
| DUMP_OAT_HEADER_OFFSET("QUICK IMT CONFLICT TRAMPOLINE", |
| GetQuickImtConflictTrampolineOffset); |
| DUMP_OAT_HEADER_OFFSET("QUICK RESOLUTION TRAMPOLINE", |
| GetQuickResolutionTrampolineOffset); |
| DUMP_OAT_HEADER_OFFSET("QUICK TO INTERPRETER BRIDGE", |
| GetQuickToInterpreterBridgeOffset); |
| #undef DUMP_OAT_HEADER_OFFSET |
| |
| os << "IMAGE PATCH DELTA:\n"; |
| os << StringPrintf("%d (0x%08x)\n\n", |
| oat_header.GetImagePatchDelta(), |
| oat_header.GetImagePatchDelta()); |
| |
| os << "IMAGE FILE LOCATION OAT CHECKSUM:\n"; |
| os << StringPrintf("0x%08x\n\n", oat_header.GetImageFileLocationOatChecksum()); |
| |
| os << "IMAGE FILE LOCATION OAT BEGIN:\n"; |
| os << StringPrintf("0x%08x\n\n", oat_header.GetImageFileLocationOatDataBegin()); |
| |
| // Print the key-value store. |
| { |
| os << "KEY VALUE STORE:\n"; |
| size_t index = 0; |
| const char* key; |
| const char* value; |
| while (oat_header.GetStoreKeyValuePairByIndex(index, &key, &value)) { |
| os << key << " = " << value << "\n"; |
| index++; |
| } |
| os << "\n"; |
| } |
| |
| if (options_.absolute_addresses_) { |
| os << "BEGIN:\n"; |
| os << reinterpret_cast<const void*>(oat_file_.Begin()) << "\n\n"; |
| |
| os << "END:\n"; |
| os << reinterpret_cast<const void*>(oat_file_.End()) << "\n\n"; |
| } |
| |
| os << "SIZE:\n"; |
| os << oat_file_.Size() << "\n\n"; |
| |
| os << std::flush; |
| |
| // If set, adjust relative address to be searched |
| if (options_.addr2instr_ != 0) { |
| resolved_addr2instr_ = options_.addr2instr_ + oat_header.GetExecutableOffset(); |
| os << "SEARCH ADDRESS (executable offset + input):\n"; |
| os << StringPrintf("0x%08x\n\n", resolved_addr2instr_); |
| } |
| |
| if (!options_.dump_header_only_) { |
| for (size_t i = 0; i < oat_dex_files_.size(); i++) { |
| const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i]; |
| CHECK(oat_dex_file != nullptr); |
| |
| // If file export selected skip file analysis |
| if (options_.export_dex_location_) { |
| if (!ExportDexFile(os, *oat_dex_file)) { |
| success = false; |
| } |
| } else { |
| if (!DumpOatDexFile(os, *oat_dex_file)) { |
| success = false; |
| } |
| } |
| } |
| } |
| |
| os << std::flush; |
| return success; |
| } |
| |
| size_t ComputeSize(const void* oat_data) { |
| if (reinterpret_cast<const uint8_t*>(oat_data) < oat_file_.Begin() || |
| reinterpret_cast<const uint8_t*>(oat_data) > oat_file_.End()) { |
| return 0; // Address not in oat file |
| } |
| uintptr_t begin_offset = reinterpret_cast<uintptr_t>(oat_data) - |
| reinterpret_cast<uintptr_t>(oat_file_.Begin()); |
| auto it = offsets_.upper_bound(begin_offset); |
| CHECK(it != offsets_.end()); |
| uintptr_t end_offset = *it; |
| return end_offset - begin_offset; |
| } |
| |
| InstructionSet GetOatInstructionSet() { |
| return oat_file_.GetOatHeader().GetInstructionSet(); |
| } |
| |
| const void* GetQuickOatCode(ArtMethod* m) SHARED_REQUIRES(Locks::mutator_lock_) { |
| for (size_t i = 0; i < oat_dex_files_.size(); i++) { |
| const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i]; |
| CHECK(oat_dex_file != nullptr); |
| std::string error_msg; |
| const DexFile* const dex_file = OpenDexFile(oat_dex_file, &error_msg); |
| if (dex_file == nullptr) { |
| LOG(WARNING) << "Failed to open dex file '" << oat_dex_file->GetDexFileLocation() |
| << "': " << error_msg; |
| } else { |
| const char* descriptor = m->GetDeclaringClassDescriptor(); |
| const DexFile::ClassDef* class_def = |
| dex_file->FindClassDef(descriptor, ComputeModifiedUtf8Hash(descriptor)); |
| if (class_def != nullptr) { |
| uint16_t class_def_index = dex_file->GetIndexForClassDef(*class_def); |
| const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(class_def_index); |
| size_t method_index = m->GetMethodIndex(); |
| return oat_class.GetOatMethod(method_index).GetQuickCode(); |
| } |
| } |
| } |
| return nullptr; |
| } |
| |
| private: |
| void AddAllOffsets() { |
| // We don't know the length of the code for each method, but we need to know where to stop |
| // when disassembling. What we do know is that a region of code will be followed by some other |
| // region, so if we keep a sorted sequence of the start of each region, we can infer the length |
| // of a piece of code by using upper_bound to find the start of the next region. |
| for (size_t i = 0; i < oat_dex_files_.size(); i++) { |
| const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i]; |
| CHECK(oat_dex_file != nullptr); |
| std::string error_msg; |
| const DexFile* const dex_file = OpenDexFile(oat_dex_file, &error_msg); |
| if (dex_file == nullptr) { |
| LOG(WARNING) << "Failed to open dex file '" << oat_dex_file->GetDexFileLocation() |
| << "': " << error_msg; |
| continue; |
| } |
| offsets_.insert(reinterpret_cast<uintptr_t>(&dex_file->GetHeader())); |
| for (size_t class_def_index = 0; |
| class_def_index < dex_file->NumClassDefs(); |
| class_def_index++) { |
| const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index); |
| const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(class_def_index); |
| const uint8_t* class_data = dex_file->GetClassData(class_def); |
| if (class_data != nullptr) { |
| ClassDataItemIterator it(*dex_file, class_data); |
| SkipAllFields(it); |
| uint32_t class_method_index = 0; |
| while (it.HasNextDirectMethod()) { |
| AddOffsets(oat_class.GetOatMethod(class_method_index++)); |
| it.Next(); |
| } |
| while (it.HasNextVirtualMethod()) { |
| AddOffsets(oat_class.GetOatMethod(class_method_index++)); |
| it.Next(); |
| } |
| } |
| } |
| } |
| |
| // If the last thing in the file is code for a method, there won't be an offset for the "next" |
| // thing. Instead of having a special case in the upper_bound code, let's just add an entry |
| // for the end of the file. |
| offsets_.insert(oat_file_.Size()); |
| } |
| |
| static uint32_t AlignCodeOffset(uint32_t maybe_thumb_offset) { |
| return maybe_thumb_offset & ~0x1; // TODO: Make this Thumb2 specific. |
| } |
| |
| void AddOffsets(const OatFile::OatMethod& oat_method) { |
| uint32_t code_offset = oat_method.GetCodeOffset(); |
| if (oat_file_.GetOatHeader().GetInstructionSet() == kThumb2) { |
| code_offset &= ~0x1; |
| } |
| offsets_.insert(code_offset); |
| offsets_.insert(oat_method.GetMappingTableOffset()); |
| offsets_.insert(oat_method.GetVmapTableOffset()); |
| offsets_.insert(oat_method.GetGcMapOffset()); |
| } |
| |
| bool DumpOatDexFile(std::ostream& os, const OatFile::OatDexFile& oat_dex_file) { |
| bool success = true; |
| bool stop_analysis = false; |
| os << "OatDexFile:\n"; |
| os << StringPrintf("location: %s\n", oat_dex_file.GetDexFileLocation().c_str()); |
| os << StringPrintf("checksum: 0x%08x\n", oat_dex_file.GetDexFileLocationChecksum()); |
| |
| // Create the verifier early. |
| |
| std::string error_msg; |
| const DexFile* const dex_file = OpenDexFile(&oat_dex_file, &error_msg); |
| if (dex_file == nullptr) { |
| os << "NOT FOUND: " << error_msg << "\n\n"; |
| os << std::flush; |
| return false; |
| } |
| |
| VariableIndentationOutputStream vios(&os); |
| ScopedIndentation indent1(&vios); |
| for (size_t class_def_index = 0; |
| class_def_index < dex_file->NumClassDefs(); |
| class_def_index++) { |
| const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index); |
| const char* descriptor = dex_file->GetClassDescriptor(class_def); |
| |
| // TODO: Support regex |
| if (DescriptorToDot(descriptor).find(options_.class_filter_) == std::string::npos) { |
| continue; |
| } |
| |
| uint32_t oat_class_offset = oat_dex_file.GetOatClassOffset(class_def_index); |
| const OatFile::OatClass oat_class = oat_dex_file.GetOatClass(class_def_index); |
| os << StringPrintf("%zd: %s (offset=0x%08x) (type_idx=%d)", |
| class_def_index, descriptor, oat_class_offset, class_def.class_idx_) |
| << " (" << oat_class.GetStatus() << ")" |
| << " (" << oat_class.GetType() << ")\n"; |
| // TODO: include bitmap here if type is kOatClassSomeCompiled? |
| if (options_.list_classes_) continue; |
| if (!DumpOatClass(&vios, oat_class, *dex_file, class_def, &stop_analysis)) { |
| success = false; |
| } |
| if (stop_analysis) { |
| os << std::flush; |
| return success; |
| } |
| } |
| |
| os << std::flush; |
| return success; |
| } |
| |
| bool ExportDexFile(std::ostream& os, const OatFile::OatDexFile& oat_dex_file) { |
| std::string error_msg; |
| std::string dex_file_location = oat_dex_file.GetDexFileLocation(); |
| |
| const DexFile* const dex_file = OpenDexFile(&oat_dex_file, &error_msg); |
| if (dex_file == nullptr) { |
| os << "Failed to open dex file '" << dex_file_location << "': " << error_msg; |
| return false; |
| } |
| size_t fsize = oat_dex_file.FileSize(); |
| |
| // Some quick checks just in case |
| if (fsize == 0 || fsize < sizeof(DexFile::Header)) { |
| os << "Invalid dex file\n"; |
| return false; |
| } |
| |
| // Verify output directory exists |
| if (!OS::DirectoryExists(options_.export_dex_location_)) { |
| // TODO: Extend OS::DirectoryExists if symlink support is required |
| os << options_.export_dex_location_ << " output directory not found or symlink\n"; |
| return false; |
| } |
| |
| // Beautify path names |
| if (dex_file_location.size() > PATH_MAX || dex_file_location.size() <= 0) { |
| return false; |
| } |
| |
| std::string dex_orig_name; |
| size_t dex_orig_pos = dex_file_location.rfind('/'); |
| if (dex_orig_pos == std::string::npos) |
| dex_orig_name = dex_file_location; |
| else |
| dex_orig_name = dex_file_location.substr(dex_orig_pos + 1); |
| |
| // A more elegant approach to efficiently name user installed apps is welcome |
| if (dex_orig_name.size() == 8 && !dex_orig_name.compare("base.apk")) { |
| dex_file_location.erase(dex_orig_pos, strlen("base.apk") + 1); |
| size_t apk_orig_pos = dex_file_location.rfind('/'); |
| if (apk_orig_pos != std::string::npos) { |
| dex_orig_name = dex_file_location.substr(++apk_orig_pos); |
| } |
| } |
| |
| std::string out_dex_path(options_.export_dex_location_); |
| if (out_dex_path.back() != '/') { |
| out_dex_path.append("/"); |
| } |
| out_dex_path.append(dex_orig_name); |
| out_dex_path.append("_export.dex"); |
| if (out_dex_path.length() > PATH_MAX) { |
| return false; |
| } |
| |
| std::unique_ptr<File> file(OS::CreateEmptyFile(out_dex_path.c_str())); |
| if (file.get() == nullptr) { |
| os << "Failed to open output dex file " << out_dex_path; |
| return false; |
| } |
| |
| if (!file->WriteFully(dex_file->Begin(), fsize)) { |
| os << "Failed to write dex file"; |
| file->Erase(); |
| return false; |
| } |
| |
| if (file->FlushCloseOrErase() != 0) { |
| os << "Flush and close failed"; |
| return false; |
| } |
| |
| os << StringPrintf("Dex file exported at %s (%zd bytes)\n", out_dex_path.c_str(), fsize); |
| os << std::flush; |
| |
| return true; |
| } |
| |
| static void SkipAllFields(ClassDataItemIterator& it) { |
| while (it.HasNextStaticField()) { |
| it.Next(); |
| } |
| while (it.HasNextInstanceField()) { |
| it.Next(); |
| } |
| } |
| |
| bool DumpOatClass(VariableIndentationOutputStream* vios, |
| const OatFile::OatClass& oat_class, const DexFile& dex_file, |
| const DexFile::ClassDef& class_def, bool* stop_analysis) { |
| bool success = true; |
| bool addr_found = false; |
| const uint8_t* class_data = dex_file.GetClassData(class_def); |
| if (class_data == nullptr) { // empty class such as a marker interface? |
| vios->Stream() << std::flush; |
| return success; |
| } |
| ClassDataItemIterator it(dex_file, class_data); |
| SkipAllFields(it); |
| uint32_t class_method_index = 0; |
| while (it.HasNextDirectMethod()) { |
| if (!DumpOatMethod(vios, class_def, class_method_index, oat_class, dex_file, |
| it.GetMemberIndex(), it.GetMethodCodeItem(), |
| it.GetRawMemberAccessFlags(), &addr_found)) { |
| success = false; |
| } |
| if (addr_found) { |
| *stop_analysis = true; |
| return success; |
| } |
| class_method_index++; |
| it.Next(); |
| } |
| while (it.HasNextVirtualMethod()) { |
| if (!DumpOatMethod(vios, class_def, class_method_index, oat_class, dex_file, |
| it.GetMemberIndex(), it.GetMethodCodeItem(), |
| it.GetRawMemberAccessFlags(), &addr_found)) { |
| success = false; |
| } |
| if (addr_found) { |
| *stop_analysis = true; |
| return success; |
| } |
| class_method_index++; |
| it.Next(); |
| } |
| DCHECK(!it.HasNext()); |
| vios->Stream() << std::flush; |
| return success; |
| } |
| |
| static constexpr uint32_t kPrologueBytes = 16; |
| |
| // When this was picked, the largest arm method was 55,256 bytes and arm64 was 50,412 bytes. |
| static constexpr uint32_t kMaxCodeSize = 100 * 1000; |
| |
| bool DumpOatMethod(VariableIndentationOutputStream* vios, |
| const DexFile::ClassDef& class_def, |
| uint32_t class_method_index, |
| const OatFile::OatClass& oat_class, const DexFile& dex_file, |
| uint32_t dex_method_idx, const DexFile::CodeItem* code_item, |
| uint32_t method_access_flags, bool* addr_found) { |
| bool success = true; |
| |
| // TODO: Support regex |
| std::string method_name = dex_file.GetMethodName(dex_file.GetMethodId(dex_method_idx)); |
| if (method_name.find(options_.method_filter_) == std::string::npos) { |
| return success; |
| } |
| |
| std::string pretty_method = PrettyMethod(dex_method_idx, dex_file, true); |
| vios->Stream() << StringPrintf("%d: %s (dex_method_idx=%d)\n", |
| class_method_index, pretty_method.c_str(), |
| dex_method_idx); |
| if (options_.list_methods_) return success; |
| |
| uint32_t oat_method_offsets_offset = oat_class.GetOatMethodOffsetsOffset(class_method_index); |
| const OatMethodOffsets* oat_method_offsets = oat_class.GetOatMethodOffsets(class_method_index); |
| const OatFile::OatMethod oat_method = oat_class.GetOatMethod(class_method_index); |
| uint32_t code_offset = oat_method.GetCodeOffset(); |
| uint32_t code_size = oat_method.GetQuickCodeSize(); |
| if (resolved_addr2instr_ != 0) { |
| if (resolved_addr2instr_ > code_offset + code_size) { |
| return success; |
| } else { |
| *addr_found = true; // stop analyzing file at next iteration |
| } |
| } |
| |
| // Everything below is indented at least once. |
| ScopedIndentation indent1(vios); |
| |
| { |
| vios->Stream() << "DEX CODE:\n"; |
| ScopedIndentation indent2(vios); |
| DumpDexCode(vios->Stream(), dex_file, code_item); |
| } |
| |
| std::unique_ptr<StackHandleScope<1>> hs; |
| std::unique_ptr<verifier::MethodVerifier> verifier; |
| if (Runtime::Current() != nullptr) { |
| // We need to have the handle scope stay live until after the verifier since the verifier has |
| // a handle to the dex cache from hs. |
| hs.reset(new StackHandleScope<1>(Thread::Current())); |
| vios->Stream() << "VERIFIER TYPE ANALYSIS:\n"; |
| ScopedIndentation indent2(vios); |
| verifier.reset(DumpVerifier(vios, hs.get(), |
| dex_method_idx, &dex_file, class_def, code_item, |
| method_access_flags)); |
| } |
| { |
| vios->Stream() << "OatMethodOffsets "; |
| if (options_.absolute_addresses_) { |
| vios->Stream() << StringPrintf("%p ", oat_method_offsets); |
| } |
| vios->Stream() << StringPrintf("(offset=0x%08x)\n", oat_method_offsets_offset); |
| if (oat_method_offsets_offset > oat_file_.Size()) { |
| vios->Stream() << StringPrintf( |
| "WARNING: oat method offsets offset 0x%08x is past end of file 0x%08zx.\n", |
| oat_method_offsets_offset, oat_file_.Size()); |
| // If we can't read OatMethodOffsets, the rest of the data is dangerous to read. |
| vios->Stream() << std::flush; |
| return false; |
| } |
| |
| ScopedIndentation indent2(vios); |
| vios->Stream() << StringPrintf("code_offset: 0x%08x ", code_offset); |
| uint32_t aligned_code_begin = AlignCodeOffset(oat_method.GetCodeOffset()); |
| if (aligned_code_begin > oat_file_.Size()) { |
| vios->Stream() << StringPrintf("WARNING: " |
| "code offset 0x%08x is past end of file 0x%08zx.\n", |
| aligned_code_begin, oat_file_.Size()); |
| success = false; |
| } |
| vios->Stream() << "\n"; |
| |
| vios->Stream() << "gc_map: "; |
| if (options_.absolute_addresses_) { |
| vios->Stream() << StringPrintf("%p ", oat_method.GetGcMap()); |
| } |
| uint32_t gc_map_offset = oat_method.GetGcMapOffset(); |
| vios->Stream() << StringPrintf("(offset=0x%08x)\n", gc_map_offset); |
| if (gc_map_offset > oat_file_.Size()) { |
| vios->Stream() << StringPrintf("WARNING: " |
| "gc map table offset 0x%08x is past end of file 0x%08zx.\n", |
| gc_map_offset, oat_file_.Size()); |
| success = false; |
| } else if (options_.dump_raw_gc_map_) { |
| ScopedIndentation indent3(vios); |
| DumpGcMap(vios->Stream(), oat_method, code_item); |
| } |
| } |
| { |
| vios->Stream() << "OatQuickMethodHeader "; |
| uint32_t method_header_offset = oat_method.GetOatQuickMethodHeaderOffset(); |
| const OatQuickMethodHeader* method_header = oat_method.GetOatQuickMethodHeader(); |
| |
| if (options_.absolute_addresses_) { |
| vios->Stream() << StringPrintf("%p ", method_header); |
| } |
| vios->Stream() << StringPrintf("(offset=0x%08x)\n", method_header_offset); |
| if (method_header_offset > oat_file_.Size()) { |
| vios->Stream() << StringPrintf( |
| "WARNING: oat quick method header offset 0x%08x is past end of file 0x%08zx.\n", |
| method_header_offset, oat_file_.Size()); |
| // If we can't read the OatQuickMethodHeader, the rest of the data is dangerous to read. |
| vios->Stream() << std::flush; |
| return false; |
| } |
| |
| ScopedIndentation indent2(vios); |
| vios->Stream() << "mapping_table: "; |
| if (options_.absolute_addresses_) { |
| vios->Stream() << StringPrintf("%p ", oat_method.GetMappingTable()); |
| } |
| uint32_t mapping_table_offset = oat_method.GetMappingTableOffset(); |
| vios->Stream() << StringPrintf("(offset=0x%08x)\n", oat_method.GetMappingTableOffset()); |
| if (mapping_table_offset > oat_file_.Size()) { |
| vios->Stream() << StringPrintf("WARNING: " |
| "mapping table offset 0x%08x is past end of file 0x%08zx. " |
| "mapping table offset was loaded from offset 0x%08x.\n", |
| mapping_table_offset, oat_file_.Size(), |
| oat_method.GetMappingTableOffsetOffset()); |
| success = false; |
| } else if (options_.dump_raw_mapping_table_) { |
| ScopedIndentation indent3(vios); |
| DumpMappingTable(vios, oat_method); |
| } |
| |
| vios->Stream() << "vmap_table: "; |
| if (options_.absolute_addresses_) { |
| vios->Stream() << StringPrintf("%p ", oat_method.GetVmapTable()); |
| } |
| uint32_t vmap_table_offset = oat_method.GetVmapTableOffset(); |
| vios->Stream() << StringPrintf("(offset=0x%08x)\n", vmap_table_offset); |
| if (vmap_table_offset > oat_file_.Size()) { |
| vios->Stream() << StringPrintf("WARNING: " |
| "vmap table offset 0x%08x is past end of file 0x%08zx. " |
| "vmap table offset was loaded from offset 0x%08x.\n", |
| vmap_table_offset, oat_file_.Size(), |
| oat_method.GetVmapTableOffsetOffset()); |
| success = false; |
| } else if (options_.dump_vmap_) { |
| DumpVmapData(vios, oat_method, code_item); |
| } |
| } |
| { |
| vios->Stream() << "QuickMethodFrameInfo\n"; |
| |
| ScopedIndentation indent2(vios); |
| vios->Stream() |
| << StringPrintf("frame_size_in_bytes: %zd\n", oat_method.GetFrameSizeInBytes()); |
| vios->Stream() << StringPrintf("core_spill_mask: 0x%08x ", oat_method.GetCoreSpillMask()); |
| DumpSpillMask(vios->Stream(), oat_method.GetCoreSpillMask(), false); |
| vios->Stream() << "\n"; |
| vios->Stream() << StringPrintf("fp_spill_mask: 0x%08x ", oat_method.GetFpSpillMask()); |
| DumpSpillMask(vios->Stream(), oat_method.GetFpSpillMask(), true); |
| vios->Stream() << "\n"; |
| } |
| { |
| // Based on spill masks from QuickMethodFrameInfo so placed |
| // after it is dumped, but useful for understanding quick |
| // code, so dumped here. |
| ScopedIndentation indent2(vios); |
| DumpVregLocations(vios->Stream(), oat_method, code_item); |
| } |
| { |
| vios->Stream() << "CODE: "; |
| uint32_t code_size_offset = oat_method.GetQuickCodeSizeOffset(); |
| if (code_size_offset > oat_file_.Size()) { |
| ScopedIndentation indent2(vios); |
| vios->Stream() << StringPrintf("WARNING: " |
| "code size offset 0x%08x is past end of file 0x%08zx.", |
| code_size_offset, oat_file_.Size()); |
| success = false; |
| } else { |
| const void* code = oat_method.GetQuickCode(); |
| uint32_t aligned_code_begin = AlignCodeOffset(code_offset); |
| uint64_t aligned_code_end = aligned_code_begin + code_size; |
| |
| if (options_.absolute_addresses_) { |
| vios->Stream() << StringPrintf("%p ", code); |
| } |
| vios->Stream() << StringPrintf("(code_offset=0x%08x size_offset=0x%08x size=%u)%s\n", |
| code_offset, |
| code_size_offset, |
| code_size, |
| code != nullptr ? "..." : ""); |
| |
| ScopedIndentation indent2(vios); |
| if (aligned_code_begin > oat_file_.Size()) { |
| vios->Stream() << StringPrintf("WARNING: " |
| "start of code at 0x%08x is past end of file 0x%08zx.", |
| aligned_code_begin, oat_file_.Size()); |
| success = false; |
| } else if (aligned_code_end > oat_file_.Size()) { |
| vios->Stream() << StringPrintf( |
| "WARNING: " |
| "end of code at 0x%08" PRIx64 " is past end of file 0x%08zx. " |
| "code size is 0x%08x loaded from offset 0x%08x.\n", |
| aligned_code_end, oat_file_.Size(), |
| code_size, code_size_offset); |
| success = false; |
| if (options_.disassemble_code_) { |
| if (code_size_offset + kPrologueBytes <= oat_file_.Size()) { |
| DumpCode(vios, verifier.get(), oat_method, code_item, true, kPrologueBytes); |
| } |
| } |
| } else if (code_size > kMaxCodeSize) { |
| vios->Stream() << StringPrintf( |
| "WARNING: " |
| "code size %d is bigger than max expected threshold of %d. " |
| "code size is 0x%08x loaded from offset 0x%08x.\n", |
| code_size, kMaxCodeSize, |
| code_size, code_size_offset); |
| success = false; |
| if (options_.disassemble_code_) { |
| if (code_size_offset + kPrologueBytes <= oat_file_.Size()) { |
| DumpCode(vios, verifier.get(), oat_method, code_item, true, kPrologueBytes); |
| } |
| } |
| } else if (options_.disassemble_code_) { |
| DumpCode(vios, verifier.get(), oat_method, code_item, !success, 0); |
| } |
| } |
| } |
| vios->Stream() << std::flush; |
| return success; |
| } |
| |
| void DumpSpillMask(std::ostream& os, uint32_t spill_mask, bool is_float) { |
| if (spill_mask == 0) { |
| return; |
| } |
| os << "("; |
| for (size_t i = 0; i < 32; i++) { |
| if ((spill_mask & (1 << i)) != 0) { |
| if (is_float) { |
| os << "fr" << i; |
| } else { |
| os << "r" << i; |
| } |
| spill_mask ^= 1 << i; // clear bit |
| if (spill_mask != 0) { |
| os << ", "; |
| } else { |
| break; |
| } |
| } |
| } |
| os << ")"; |
| } |
| |
| // Display data stored at the the vmap offset of an oat method. |
| void DumpVmapData(VariableIndentationOutputStream* vios, |
| const OatFile::OatMethod& oat_method, |
| const DexFile::CodeItem* code_item) { |
| if (IsMethodGeneratedByOptimizingCompiler(oat_method, code_item)) { |
| // The optimizing compiler outputs its CodeInfo data in the vmap table. |
| const void* raw_code_info = oat_method.GetVmapTable(); |
| if (raw_code_info != nullptr) { |
| CodeInfo code_info(raw_code_info); |
| DCHECK(code_item != nullptr); |
| ScopedIndentation indent1(vios); |
| DumpCodeInfo(vios, code_info, oat_method, *code_item); |
| } |
| } else if (IsMethodGeneratedByDexToDexCompiler(oat_method, code_item)) { |
| // We don't encode the size in the table, so just emit that we have quickened |
| // information. |
| ScopedIndentation indent(vios); |
| vios->Stream() << "quickened data\n"; |
| } else { |
| // Otherwise, display the vmap table. |
| const uint8_t* raw_table = oat_method.GetVmapTable(); |
| if (raw_table != nullptr) { |
| VmapTable vmap_table(raw_table); |
| DumpVmapTable(vios->Stream(), oat_method, vmap_table); |
| } |
| } |
| } |
| |
| // Display a CodeInfo object emitted by the optimizing compiler. |
| void DumpCodeInfo(VariableIndentationOutputStream* vios, |
| const CodeInfo& code_info, |
| const OatFile::OatMethod& oat_method, |
| const DexFile::CodeItem& code_item) { |
| code_info.Dump(vios, |
| oat_method.GetCodeOffset(), |
| code_item.registers_size_, |
| options_.dump_code_info_stack_maps_); |
| } |
| |
| // Display a vmap table. |
| void DumpVmapTable(std::ostream& os, |
| const OatFile::OatMethod& oat_method, |
| const VmapTable& vmap_table) { |
| bool first = true; |
| bool processing_fp = false; |
| uint32_t spill_mask = oat_method.GetCoreSpillMask(); |
| for (size_t i = 0; i < vmap_table.Size(); i++) { |
| uint16_t dex_reg = vmap_table[i]; |
| uint32_t cpu_reg = vmap_table.ComputeRegister(spill_mask, i, |
| processing_fp ? kFloatVReg : kIntVReg); |
| os << (first ? "v" : ", v") << dex_reg; |
| if (!processing_fp) { |
| os << "/r" << cpu_reg; |
| } else { |
| os << "/fr" << cpu_reg; |
| } |
| first = false; |
| if (!processing_fp && dex_reg == 0xFFFF) { |
| processing_fp = true; |
| spill_mask = oat_method.GetFpSpillMask(); |
| } |
| } |
| os << "\n"; |
| } |
| |
| void DumpVregLocations(std::ostream& os, const OatFile::OatMethod& oat_method, |
| const DexFile::CodeItem* code_item) { |
| if (code_item != nullptr) { |
| size_t num_locals_ins = code_item->registers_size_; |
| size_t num_ins = code_item->ins_size_; |
| size_t num_locals = num_locals_ins - num_ins; |
| size_t num_outs = code_item->outs_size_; |
| |
| os << "vr_stack_locations:"; |
| for (size_t reg = 0; reg <= num_locals_ins; reg++) { |
| // For readability, delimit the different kinds of VRs. |
| if (reg == num_locals_ins) { |
| os << "\n\tmethod*:"; |
| } else if (reg == num_locals && num_ins > 0) { |
| os << "\n\tins:"; |
| } else if (reg == 0 && num_locals > 0) { |
| os << "\n\tlocals:"; |
| } |
| |
| uint32_t offset = StackVisitor::GetVRegOffsetFromQuickCode( |
| code_item, |
| oat_method.GetCoreSpillMask(), |
| oat_method.GetFpSpillMask(), |
| oat_method.GetFrameSizeInBytes(), |
| reg, |
| GetInstructionSet()); |
| os << " v" << reg << "[sp + #" << offset << "]"; |
| } |
| |
| for (size_t out_reg = 0; out_reg < num_outs; out_reg++) { |
| if (out_reg == 0) { |
| os << "\n\touts:"; |
| } |
| |
| uint32_t offset = StackVisitor::GetOutVROffset(out_reg, GetInstructionSet()); |
| os << " v" << out_reg << "[sp + #" << offset << "]"; |
| } |
| |
| os << "\n"; |
| } |
| } |
| |
| void DescribeVReg(std::ostream& os, const OatFile::OatMethod& oat_method, |
| const DexFile::CodeItem* code_item, size_t reg, VRegKind kind) { |
| const uint8_t* raw_table = oat_method.GetVmapTable(); |
| if (raw_table != nullptr) { |
| const VmapTable vmap_table(raw_table); |
| uint32_t vmap_offset; |
| if (vmap_table.IsInContext(reg, kind, &vmap_offset)) { |
| bool is_float = (kind == kFloatVReg) || (kind == kDoubleLoVReg) || (kind == kDoubleHiVReg); |
| uint32_t spill_mask = is_float ? oat_method.GetFpSpillMask() |
| : oat_method.GetCoreSpillMask(); |
| os << (is_float ? "fr" : "r") << vmap_table.ComputeRegister(spill_mask, vmap_offset, kind); |
| } else { |
| uint32_t offset = StackVisitor::GetVRegOffsetFromQuickCode( |
| code_item, |
| oat_method.GetCoreSpillMask(), |
| oat_method.GetFpSpillMask(), |
| oat_method.GetFrameSizeInBytes(), |
| reg, |
| GetInstructionSet()); |
| os << "[sp + #" << offset << "]"; |
| } |
| } |
| } |
| |
| void DumpGcMapRegisters(std::ostream& os, const OatFile::OatMethod& oat_method, |
| const DexFile::CodeItem* code_item, |
| size_t num_regs, const uint8_t* reg_bitmap) { |
| bool first = true; |
| for (size_t reg = 0; reg < num_regs; reg++) { |
| if (((reg_bitmap[reg / 8] >> (reg % 8)) & 0x01) != 0) { |
| if (first) { |
| os << " v" << reg << " ("; |
| DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); |
| os << ")"; |
| first = false; |
| } else { |
| os << ", v" << reg << " ("; |
| DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); |
| os << ")"; |
| } |
| } |
| } |
| if (first) { |
| os << "No registers in GC map\n"; |
| } else { |
| os << "\n"; |
| } |
| } |
| void DumpGcMap(std::ostream& os, const OatFile::OatMethod& oat_method, |
| const DexFile::CodeItem* code_item) { |
| const uint8_t* gc_map_raw = oat_method.GetGcMap(); |
| if (gc_map_raw == nullptr) { |
| return; // No GC map. |
| } |
| const void* quick_code = oat_method.GetQuickCode(); |
| NativePcOffsetToReferenceMap map(gc_map_raw); |
| for (size_t entry = 0; entry < map.NumEntries(); entry++) { |
| const uint8_t* native_pc = reinterpret_cast<const uint8_t*>(quick_code) + |
| map.GetNativePcOffset(entry); |
| os << StringPrintf("%p", native_pc); |
| DumpGcMapRegisters(os, oat_method, code_item, map.RegWidth() * 8, map.GetBitMap(entry)); |
| } |
| } |
| |
| void DumpMappingTable(VariableIndentationOutputStream* vios, |
| const OatFile::OatMethod& oat_method) { |
| const void* quick_code = oat_method.GetQuickCode(); |
| if (quick_code == nullptr) { |
| return; |
| } |
| MappingTable table(oat_method.GetMappingTable()); |
| if (table.TotalSize() != 0) { |
| if (table.PcToDexSize() != 0) { |
| typedef MappingTable::PcToDexIterator It; |
| vios->Stream() << "suspend point mappings {\n"; |
| for (It cur = table.PcToDexBegin(), end = table.PcToDexEnd(); cur != end; ++cur) { |
| ScopedIndentation indent1(vios); |
| vios->Stream() << StringPrintf("0x%04x -> 0x%04x\n", cur.NativePcOffset(), cur.DexPc()); |
| } |
| vios->Stream() << "}\n"; |
| } |
| if (table.DexToPcSize() != 0) { |
| typedef MappingTable::DexToPcIterator It; |
| vios->Stream() << "catch entry mappings {\n"; |
| for (It cur = table.DexToPcBegin(), end = table.DexToPcEnd(); cur != end; ++cur) { |
| ScopedIndentation indent1(vios); |
| vios->Stream() << StringPrintf("0x%04x -> 0x%04x\n", cur.NativePcOffset(), cur.DexPc()); |
| } |
| vios->Stream() << "}\n"; |
| } |
| } |
| } |
| |
| uint32_t DumpInformationAtOffset(VariableIndentationOutputStream* vios, |
| const OatFile::OatMethod& oat_method, |
| const DexFile::CodeItem* code_item, |
| size_t offset, |
| bool suspend_point_mapping) { |
| if (IsMethodGeneratedByOptimizingCompiler(oat_method, code_item)) { |
| if (suspend_point_mapping) { |
| ScopedIndentation indent1(vios); |
| DumpDexRegisterMapAtOffset(vios, oat_method, code_item, offset); |
| } |
| // The return value is not used in the case of a method compiled |
| // with the optimizing compiler. |
| return DexFile::kDexNoIndex; |
| } else { |
| return DumpMappingAtOffset(vios->Stream(), oat_method, offset, suspend_point_mapping); |
| } |
| } |
| |
| uint32_t DumpMappingAtOffset(std::ostream& os, const OatFile::OatMethod& oat_method, |
| size_t offset, bool suspend_point_mapping) { |
| MappingTable table(oat_method.GetMappingTable()); |
| if (suspend_point_mapping && table.PcToDexSize() > 0) { |
| typedef MappingTable::PcToDexIterator It; |
| for (It cur = table.PcToDexBegin(), end = table.PcToDexEnd(); cur != end; ++cur) { |
| if (offset == cur.NativePcOffset()) { |
| os << StringPrintf("suspend point dex PC: 0x%04x\n", cur.DexPc()); |
| return cur.DexPc(); |
| } |
| } |
| } else if (!suspend_point_mapping && table.DexToPcSize() > 0) { |
| typedef MappingTable::DexToPcIterator It; |
| for (It cur = table.DexToPcBegin(), end = table.DexToPcEnd(); cur != end; ++cur) { |
| if (offset == cur.NativePcOffset()) { |
| os << StringPrintf("catch entry dex PC: 0x%04x\n", cur.DexPc()); |
| return cur.DexPc(); |
| } |
| } |
| } |
| return DexFile::kDexNoIndex; |
| } |
| |
| void DumpGcMapAtNativePcOffset(std::ostream& os, const OatFile::OatMethod& oat_method, |
| const DexFile::CodeItem* code_item, size_t native_pc_offset) { |
| const uint8_t* gc_map_raw = oat_method.GetGcMap(); |
| if (gc_map_raw != nullptr) { |
| NativePcOffsetToReferenceMap map(gc_map_raw); |
| if (map.HasEntry(native_pc_offset)) { |
| size_t num_regs = map.RegWidth() * 8; |
| const uint8_t* reg_bitmap = map.FindBitMap(native_pc_offset); |
| bool first = true; |
| for (size_t reg = 0; reg < num_regs; reg++) { |
| if (((reg_bitmap[reg / 8] >> (reg % 8)) & 0x01) != 0) { |
| if (first) { |
| os << "GC map objects: v" << reg << " ("; |
| DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); |
| os << ")"; |
| first = false; |
| } else { |
| os << ", v" << reg << " ("; |
| DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); |
| os << ")"; |
| } |
| } |
| } |
| if (!first) { |
| os << "\n"; |
| } |
| } |
| } |
| } |
| |
| void DumpVRegsAtDexPc(std::ostream& os, verifier::MethodVerifier* verifier, |
| const OatFile::OatMethod& oat_method, |
| const DexFile::CodeItem* code_item, uint32_t dex_pc) { |
| DCHECK(verifier != nullptr); |
| std::vector<int32_t> kinds = verifier->DescribeVRegs(dex_pc); |
| bool first = true; |
| for (size_t reg = 0; reg < code_item->registers_size_; reg++) { |
| VRegKind kind = static_cast<VRegKind>(kinds.at(reg * 2)); |
| if (kind != kUndefined) { |
| if (first) { |
| os << "VRegs: v"; |
| first = false; |
| } else { |
| os << ", v"; |
| } |
| os << reg << " ("; |
| switch (kind) { |
| case kImpreciseConstant: |
| os << "Imprecise Constant: " << kinds.at((reg * 2) + 1) << ", "; |
| DescribeVReg(os, oat_method, code_item, reg, kind); |
| break; |
| case kConstant: |
| os << "Constant: " << kinds.at((reg * 2) + 1); |
| break; |
| default: |
| DescribeVReg(os, oat_method, code_item, reg, kind); |
| break; |
| } |
| os << ")"; |
| } |
| } |
| if (!first) { |
| os << "\n"; |
| } |
| } |
| |
| |
| void DumpDexCode(std::ostream& os, const DexFile& dex_file, const DexFile::CodeItem* code_item) { |
| if (code_item != nullptr) { |
| size_t i = 0; |
| while (i < code_item->insns_size_in_code_units_) { |
| const Instruction* instruction = Instruction::At(&code_item->insns_[i]); |
| os << StringPrintf("0x%04zx: ", i) << instruction->DumpHexLE(5) |
| << StringPrintf("\t| %s\n", instruction->DumpString(&dex_file).c_str()); |
| i += instruction->SizeInCodeUnits(); |
| } |
| } |
| } |
| |
| // Has `oat_method` -- corresponding to the Dex `code_item` -- been compiled by |
| // the optimizing compiler? |
| static bool IsMethodGeneratedByOptimizingCompiler(const OatFile::OatMethod& oat_method, |
| const DexFile::CodeItem* code_item) { |
| // If the native GC map is null and the Dex `code_item` is not |
| // null, then this method has been compiled with the optimizing |
| // compiler. |
| return oat_method.GetQuickCode() != nullptr && |
| oat_method.GetGcMap() == nullptr && |
| code_item != nullptr; |
| } |
| |
| // Has `oat_method` -- corresponding to the Dex `code_item` -- been compiled by |
| // the dextodex compiler? |
| static bool IsMethodGeneratedByDexToDexCompiler(const OatFile::OatMethod& oat_method, |
| const DexFile::CodeItem* code_item) { |
| // If the quick code is null, the Dex `code_item` is not |
| // null, and the vmap table is not null, then this method has been compiled |
| // with the dextodex compiler. |
| return oat_method.GetQuickCode() == nullptr && |
| oat_method.GetVmapTable() != nullptr && |
| code_item != nullptr; |
| } |
| |
| void DumpDexRegisterMapAtOffset(VariableIndentationOutputStream* vios, |
| const OatFile::OatMethod& oat_method, |
| const DexFile::CodeItem* code_item, |
| size_t offset) { |
| // This method is only relevant for oat methods compiled with the |
| // optimizing compiler. |
| DCHECK(IsMethodGeneratedByOptimizingCompiler(oat_method, code_item)); |
| |
| // The optimizing compiler outputs its CodeInfo data in the vmap table. |
| const void* raw_code_info = oat_method.GetVmapTable(); |
| if (raw_code_info != nullptr) { |
| CodeInfo code_info(raw_code_info); |
| StackMapEncoding encoding = code_info.ExtractEncoding(); |
| StackMap stack_map = code_info.GetStackMapForNativePcOffset(offset, encoding); |
| if (stack_map.IsValid()) { |
| stack_map.Dump(vios, code_info, encoding, oat_method.GetCodeOffset(), |
| code_item->registers_size_); |
| } |
| } |
| } |
| |
| verifier::MethodVerifier* DumpVerifier(VariableIndentationOutputStream* vios, |
| StackHandleScope<1>* hs, |
| uint32_t dex_method_idx, |
| const DexFile* dex_file, |
| const DexFile::ClassDef& class_def, |
| const DexFile::CodeItem* code_item, |
| uint32_t method_access_flags) { |
| if ((method_access_flags & kAccNative) == 0) { |
| ScopedObjectAccess soa(Thread::Current()); |
| Runtime* const runtime = Runtime::Current(); |
| Handle<mirror::DexCache> dex_cache( |
| hs->NewHandle(runtime->GetClassLinker()->RegisterDexFile(*dex_file, |
| runtime->GetLinearAlloc()))); |
| DCHECK(options_.class_loader_ != nullptr); |
| return verifier::MethodVerifier::VerifyMethodAndDump( |
| soa.Self(), vios, dex_method_idx, dex_file, dex_cache, *options_.class_loader_, |
| &class_def, code_item, nullptr, method_access_flags); |
| } |
| |
| return nullptr; |
| } |
| |
| void DumpCode(VariableIndentationOutputStream* vios, |
| verifier::MethodVerifier* verifier, |
| const OatFile::OatMethod& oat_method, const DexFile::CodeItem* code_item, |
| bool bad_input, size_t code_size) { |
| const void* quick_code = oat_method.GetQuickCode(); |
| |
| if (code_size == 0) { |
| code_size = oat_method.GetQuickCodeSize(); |
| } |
| if (code_size == 0 || quick_code == nullptr) { |
| vios->Stream() << "NO CODE!\n"; |
| return; |
| } else { |
| const uint8_t* quick_native_pc = reinterpret_cast<const uint8_t*>(quick_code); |
| size_t offset = 0; |
| while (offset < code_size) { |
| if (!bad_input) { |
| DumpInformationAtOffset(vios, oat_method, code_item, offset, false); |
| } |
| offset += disassembler_->Dump(vios->Stream(), quick_native_pc + offset); |
| if (!bad_input) { |
| uint32_t dex_pc = |
| DumpInformationAtOffset(vios, oat_method, code_item, offset, true); |
| if (dex_pc != DexFile::kDexNoIndex) { |
| DumpGcMapAtNativePcOffset(vios->Stream(), oat_method, code_item, offset); |
| if (verifier != nullptr) { |
| DumpVRegsAtDexPc(vios->Stream(), verifier, oat_method, code_item, dex_pc); |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| const OatFile& oat_file_; |
| const std::vector<const OatFile::OatDexFile*> oat_dex_files_; |
| const OatDumperOptions& options_; |
| uint32_t resolved_addr2instr_; |
| InstructionSet instruction_set_; |
| std::set<uintptr_t> offsets_; |
| Disassembler* disassembler_; |
| }; |
| |
| class ImageDumper { |
| public: |
| ImageDumper(std::ostream* os, |
| gc::space::ImageSpace& image_space, |
| const ImageHeader& image_header, |
| OatDumperOptions* oat_dumper_options) |
| : os_(os), |
| vios_(os), |
| indent1_(&vios_), |
| image_space_(image_space), |
| image_header_(image_header), |
| oat_dumper_options_(oat_dumper_options) {} |
| |
| bool Dump() SHARED_REQUIRES(Locks::mutator_lock_) { |
| std::ostream& os = *os_; |
| std::ostream& indent_os = vios_.Stream(); |
| |
| os << "MAGIC: " << image_header_.GetMagic() << "\n\n"; |
| |
| os << "IMAGE LOCATION: " << image_space_.GetImageLocation() << "\n\n"; |
| |
| os << "IMAGE BEGIN: " << reinterpret_cast<void*>(image_header_.GetImageBegin()) << "\n\n"; |
| |
| os << "IMAGE SIZE: " << image_header_.GetImageSize() << "\n\n"; |
| |
| for (size_t i = 0; i < ImageHeader::kSectionCount; ++i) { |
| auto section = static_cast<ImageHeader::ImageSections>(i); |
| os << "IMAGE SECTION " << section << ": " << image_header_.GetImageSection(section) << "\n\n"; |
| } |
| |
| os << "OAT CHECKSUM: " << StringPrintf("0x%08x\n\n", image_header_.GetOatChecksum()); |
| |
| os << "OAT FILE BEGIN:" << reinterpret_cast<void*>(image_header_.GetOatFileBegin()) << "\n\n"; |
| |
| os << "OAT DATA BEGIN:" << reinterpret_cast<void*>(image_header_.GetOatDataBegin()) << "\n\n"; |
| |
| os << "OAT DATA END:" << reinterpret_cast<void*>(image_header_.GetOatDataEnd()) << "\n\n"; |
| |
| os << "OAT FILE END:" << reinterpret_cast<void*>(image_header_.GetOatFileEnd()) << "\n\n"; |
| |
| os << "PATCH DELTA:" << image_header_.GetPatchDelta() << "\n\n"; |
| |
| os << "COMPILE PIC: " << (image_header_.CompilePic() ? "yes" : "no") << "\n\n"; |
| |
| { |
| os << "ROOTS: " << reinterpret_cast<void*>(image_header_.GetImageRoots()) << "\n"; |
| static_assert(arraysize(image_roots_descriptions_) == |
| static_cast<size_t>(ImageHeader::kImageRootsMax), "sizes must match"); |
| for (int i = 0; i < ImageHeader::kImageRootsMax; i++) { |
| ImageHeader::ImageRoot image_root = static_cast<ImageHeader::ImageRoot>(i); |
| const char* image_root_description = image_roots_descriptions_[i]; |
| mirror::Object* image_root_object = image_header_.GetImageRoot(image_root); |
| indent_os << StringPrintf("%s: %p\n", image_root_description, image_root_object); |
| if (image_root_object->IsObjectArray()) { |
| mirror::ObjectArray<mirror::Object>* image_root_object_array |
| = image_root_object->AsObjectArray<mirror::Object>(); |
| ScopedIndentation indent2(&vios_); |
| for (int j = 0; j < image_root_object_array->GetLength(); j++) { |
| mirror::Object* value = image_root_object_array->Get(j); |
| size_t run = 0; |
| for (int32_t k = j + 1; k < image_root_object_array->GetLength(); k++) { |
| if (value == image_root_object_array->Get(k)) { |
| run++; |
| } else { |
| break; |
| } |
| } |
| if (run == 0) { |
| indent_os << StringPrintf("%d: ", j); |
| } else { |
| indent_os << StringPrintf("%d to %zd: ", j, j + run); |
| j = j + run; |
| } |
| if (value != nullptr) { |
| PrettyObjectValue(indent_os, value->GetClass(), value); |
| } else { |
| indent_os << j << ": null\n"; |
| } |
| } |
| } |
| } |
| } |
| |
| { |
| os << "METHOD ROOTS\n"; |
| static_assert(arraysize(image_methods_descriptions_) == |
| static_cast<size_t>(ImageHeader::kImageMethodsCount), "sizes must match"); |
| for (int i = 0; i < ImageHeader::kImageMethodsCount; i++) { |
| auto image_root = static_cast<ImageHeader::ImageMethod>(i); |
| const char* description = image_methods_descriptions_[i]; |
| auto* image_method = image_header_.GetImageMethod(image_root); |
| indent_os << StringPrintf("%s: %p\n", description, image_method); |
| } |
| } |
| os << "\n"; |
| |
| Runtime* const runtime = Runtime::Current(); |
| ClassLinker* class_linker = runtime->GetClassLinker(); |
| std::string image_filename = image_space_.GetImageFilename(); |
| std::string oat_location = ImageHeader::GetOatLocationFromImageLocation(image_filename); |
| os << "OAT LOCATION: " << oat_location; |
| os << "\n"; |
| std::string error_msg; |
| const OatFile* oat_file = image_space_.GetOatFile(); |
| if (oat_file == nullptr) { |
| oat_file = runtime->GetOatFileManager().FindOpenedOatFileFromOatLocation(oat_location); |
| } |
| if (oat_file == nullptr) { |
| oat_file = OatFile::Open(oat_location, |
| oat_location, |
| nullptr, |
| nullptr, |
| false, |
| /*low_4gb*/false, |
| nullptr, |
| &error_msg); |
| } |
| if (oat_file == nullptr) { |
| os << "OAT FILE NOT FOUND: " << error_msg << "\n"; |
| return EXIT_FAILURE; |
| } |
| os << "\n"; |
| |
| stats_.oat_file_bytes = oat_file->Size(); |
| |
| oat_dumper_.reset(new OatDumper(*oat_file, *oat_dumper_options_)); |
| |
| for (const OatFile::OatDexFile* oat_dex_file : oat_file->GetOatDexFiles()) { |
| CHECK(oat_dex_file != nullptr); |
| stats_.oat_dex_file_sizes.push_back(std::make_pair(oat_dex_file->GetDexFileLocation(), |
| oat_dex_file->FileSize())); |
| } |
| |
| os << "OBJECTS:\n" << std::flush; |
| |
| // Loop through the image space and dump its objects. |
| gc::Heap* heap = runtime->GetHeap(); |
| Thread* self = Thread::Current(); |
| { |
| { |
| WriterMutexLock mu(self, *Locks::heap_bitmap_lock_); |
| heap->FlushAllocStack(); |
| } |
| // Since FlushAllocStack() above resets the (active) allocation |
| // stack. Need to revoke the thread-local allocation stacks that |
| // point into it. |
| ScopedThreadSuspension sts(self, kNative); |
| ScopedSuspendAll ssa(__FUNCTION__); |
| heap->RevokeAllThreadLocalAllocationStacks(self); |
| } |
| { |
| // Mark dex caches. |
| dex_caches_.clear(); |
| { |
| ReaderMutexLock mu(self, *class_linker->DexLock()); |
| for (const ClassLinker::DexCacheData& data : class_linker->GetDexCachesData()) { |
| mirror::DexCache* dex_cache = |
| down_cast<mirror::DexCache*>(self->DecodeJObject(data.weak_root)); |
| if (dex_cache != nullptr) { |
| dex_caches_.insert(dex_cache); |
| } |
| } |
| } |
| ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_); |
| // Dump the normal objects before ArtMethods. |
| image_space_.GetLiveBitmap()->Walk(ImageDumper::Callback, this); |
| indent_os << "\n"; |
| // TODO: Dump fields. |
| // Dump methods after. |
| const auto& methods_section = image_header_.GetMethodsSection(); |
| DumpArtMethodVisitor visitor(this); |
| methods_section.VisitPackedArtMethods(&visitor, |
| image_space_.Begin(), |
| image_header_.GetPointerSize()); |
| // Dump the large objects separately. |
| heap->GetLargeObjectsSpace()->GetLiveBitmap()->Walk(ImageDumper::Callback, this); |
| indent_os << "\n"; |
| } |
| os << "STATS:\n" << std::flush; |
| std::unique_ptr<File> file(OS::OpenFileForReading(image_filename.c_str())); |
| size_t data_size = image_header_.GetDataSize(); // stored size in file. |
| if (file == nullptr) { |
| LOG(WARNING) << "Failed to find image in " << image_filename; |
| } else { |
| stats_.file_bytes = file->GetLength(); |
| // If the image is compressed, adjust to decompressed size. |
| size_t uncompressed_size = image_header_.GetImageSize() - sizeof(ImageHeader); |
| if (image_header_.GetStorageMode() == ImageHeader::kStorageModeUncompressed) { |
| DCHECK_EQ(uncompressed_size, data_size) << "Sizes should match for uncompressed image"; |
| } |
| stats_.file_bytes += uncompressed_size - data_size; |
| } |
| size_t header_bytes = sizeof(ImageHeader); |
| const auto& object_section = image_header_.GetImageSection(ImageHeader::kSectionObjects); |
| const auto& field_section = image_header_.GetImageSection(ImageHeader::kSectionArtFields); |
| const auto& method_section = image_header_.GetMethodsSection(); |
| const auto& dex_cache_arrays_section = image_header_.GetImageSection( |
| ImageHeader::kSectionDexCacheArrays); |
| const auto& intern_section = image_header_.GetImageSection( |
| ImageHeader::kSectionInternedStrings); |
| const auto& class_table_section = image_header_.GetImageSection( |
| ImageHeader::kSectionClassTable); |
| const auto& bitmap_section = image_header_.GetImageSection(ImageHeader::kSectionImageBitmap); |
| |
| stats_.header_bytes = header_bytes; |
| |
| // Objects are kObjectAlignment-aligned. |
| // CHECK_EQ(RoundUp(header_bytes, kObjectAlignment), object_section.Offset()); |
| if (object_section.Offset() > header_bytes) { |
| stats_.alignment_bytes += object_section.Offset() - header_bytes; |
| } |
| |
| // Field section is 4-byte aligned. |
| constexpr size_t kFieldSectionAlignment = 4U; |
| uint32_t end_objects = object_section.Offset() + object_section.Size(); |
| CHECK_EQ(RoundUp(end_objects, kFieldSectionAlignment), field_section.Offset()); |
| stats_.alignment_bytes += field_section.Offset() - end_objects; |
| |
| // Method section is 4/8 byte aligned depending on target. Just check for 4-byte alignment. |
| uint32_t end_fields = field_section.Offset() + field_section.Size(); |
| CHECK_ALIGNED(method_section.Offset(), 4); |
| stats_.alignment_bytes += method_section.Offset() - end_fields; |
| |
| // Dex cache arrays section is aligned depending on the target. Just check for 4-byte alignment. |
| uint32_t end_methods = method_section.Offset() + method_section.Size(); |
| CHECK_ALIGNED(dex_cache_arrays_section.Offset(), 4); |
| stats_.alignment_bytes += dex_cache_arrays_section.Offset() - end_methods; |
| |
| // Intern table is 8-byte aligned. |
| uint32_t end_caches = dex_cache_arrays_section.Offset() + dex_cache_arrays_section.Size(); |
| CHECK_EQ(RoundUp(end_caches, 8U), intern_section.Offset()); |
| stats_.alignment_bytes += intern_section.Offset() - end_caches; |
| |
| // Add space between intern table and class table. |
| uint32_t end_intern = intern_section.Offset() + intern_section.Size(); |
| stats_.alignment_bytes += class_table_section.Offset() - end_intern; |
| |
| // Add space between end of image data and bitmap. Expect the bitmap to be page-aligned. |
| const size_t bitmap_offset = sizeof(ImageHeader) + data_size; |
| CHECK_ALIGNED(bitmap_section.Offset(), kPageSize); |
| stats_.alignment_bytes += RoundUp(bitmap_offset, kPageSize) - bitmap_offset; |
| |
| stats_.bitmap_bytes += bitmap_section.Size(); |
| stats_.art_field_bytes += field_section.Size(); |
| stats_.art_method_bytes += method_section.Size(); |
| stats_.dex_cache_arrays_bytes += dex_cache_arrays_section.Size(); |
| stats_.interned_strings_bytes += intern_section.Size(); |
| stats_.class_table_bytes += class_table_section.Size(); |
| stats_.Dump(os, indent_os); |
| os << "\n"; |
| |
| os << std::flush; |
| |
| return oat_dumper_->Dump(os); |
| } |
| |
| private: |
| class DumpArtMethodVisitor : public ArtMethodVisitor { |
| public: |
| explicit DumpArtMethodVisitor(ImageDumper* image_dumper) : image_dumper_(image_dumper) {} |
| |
| virtual void Visit(ArtMethod* method) OVERRIDE SHARED_REQUIRES(Locks::mutator_lock_) { |
| std::ostream& indent_os = image_dumper_->vios_.Stream(); |
| indent_os << method << " " << " ArtMethod: " << PrettyMethod(method) << "\n"; |
| image_dumper_->DumpMethod(method, indent_os); |
| indent_os << "\n"; |
| } |
| |
| private: |
| ImageDumper* const image_dumper_; |
| }; |
| |
| static void PrettyObjectValue(std::ostream& os, mirror::Class* type, mirror::Object* value) |
| SHARED_REQUIRES(Locks::mutator_lock_) { |
| CHECK(type != nullptr); |
| if (value == nullptr) { |
| os << StringPrintf("null %s\n", PrettyDescriptor(type).c_str()); |
| } else if (type->IsStringClass()) { |
| mirror::String* string = value->AsString(); |
| os << StringPrintf("%p String: %s\n", string, |
| PrintableString(string->ToModifiedUtf8().c_str()).c_str()); |
| } else if (type->IsClassClass()) { |
| mirror::Class* klass = value->AsClass(); |
| os << StringPrintf("%p Class: %s\n", klass, PrettyDescriptor(klass).c_str()); |
| } else { |
| os << StringPrintf("%p %s\n", value, PrettyDescriptor(type).c_str()); |
| } |
| } |
| |
| static void PrintField(std::ostream& os, ArtField* field, mirror::Object* obj) |
| SHARED_REQUIRES(Locks::mutator_lock_) { |
| os << StringPrintf("%s: ", field->GetName()); |
| switch (field->GetTypeAsPrimitiveType()) { |
| case Primitive::kPrimLong: |
| os << StringPrintf("%" PRId64 " (0x%" PRIx64 ")\n", field->Get64(obj), field->Get64(obj)); |
| break; |
| case Primitive::kPrimDouble: |
| os << StringPrintf("%f (%a)\n", field->GetDouble(obj), field->GetDouble(obj)); |
| break; |
| case Primitive::kPrimFloat: |
| os << StringPrintf("%f (%a)\n", field->GetFloat(obj), field->GetFloat(obj)); |
| break; |
| case Primitive::kPrimInt: |
| os << StringPrintf("%d (0x%x)\n", field->Get32(obj), field->Get32(obj)); |
| break; |
| case Primitive::kPrimChar: |
| os << StringPrintf("%u (0x%x)\n", field->GetChar(obj), field->GetChar(obj)); |
| break; |
| case Primitive::kPrimShort: |
| os << StringPrintf("%d (0x%x)\n", field->GetShort(obj), field->GetShort(obj)); |
| break; |
| case Primitive::kPrimBoolean: |
| os << StringPrintf("%s (0x%x)\n", field->GetBoolean(obj)? "true" : "false", |
| field->GetBoolean(obj)); |
| break; |
| case Primitive::kPrimByte: |
| os << StringPrintf("%d (0x%x)\n", field->GetByte(obj), field->GetByte(obj)); |
| break; |
| case Primitive::kPrimNot: { |
| // Get the value, don't compute the type unless it is non-null as we don't want |
| // to cause class loading. |
| mirror::Object* value = field->GetObj(obj); |
| if (value == nullptr) { |
| os << StringPrintf("null %s\n", PrettyDescriptor(field->GetTypeDescriptor()).c_str()); |
| } else { |
| // Grab the field type without causing resolution. |
| mirror::Class* field_type = field->GetType<false>(); |
| if (field_type != nullptr) { |
| PrettyObjectValue(os, field_type, value); |
| } else { |
| os << StringPrintf("%p %s\n", value, |
| PrettyDescriptor(field->GetTypeDescriptor()).c_str()); |
| } |
| } |
| break; |
| } |
| default: |
| os << "unexpected field type: " << field->GetTypeDescriptor() << "\n"; |
| break; |
| } |
| } |
| |
| static void DumpFields(std::ostream& os, mirror::Object* obj, mirror::Class* klass) |
| SHARED_REQUIRES(Locks::mutator_lock_) { |
| mirror::Class* super = klass->GetSuperClass(); |
| if (super != nullptr) { |
| DumpFields(os, obj, super); |
| } |
| for (ArtField& field : klass->GetIFields()) { |
| PrintField(os, &field, obj); |
| } |
| } |
| |
| bool InDumpSpace(const mirror::Object* object) { |
| return image_space_.Contains(object); |
| } |
| |
| const void* GetQuickOatCodeBegin(ArtMethod* m) SHARED_REQUIRES(Locks::mutator_lock_) { |
| const void* quick_code = m->GetEntryPointFromQuickCompiledCodePtrSize( |
| image_header_.GetPointerSize()); |
| if (Runtime::Current()->GetClassLinker()->IsQuickResolutionStub(quick_code)) { |
| quick_code = oat_dumper_->GetQuickOatCode(m); |
| } |
| if (oat_dumper_->GetInstructionSet() == kThumb2) { |
| quick_code = reinterpret_cast<void*>(reinterpret_cast<uintptr_t>(quick_code) & ~0x1); |
| } |
| return quick_code; |
| } |
| |
| uint32_t GetQuickOatCodeSize(ArtMethod* m) |
| SHARED_REQUIRES(Locks::mutator_lock_) { |
| const uint32_t* oat_code_begin = reinterpret_cast<const uint32_t*>(GetQuickOatCodeBegin(m)); |
| if (oat_code_begin == nullptr) { |
| return 0; |
| } |
| return oat_code_begin[-1]; |
| } |
| |
| const void* GetQuickOatCodeEnd(ArtMethod* m) |
| SHARED_REQUIRES(Locks::mutator_lock_) { |
| const uint8_t* oat_code_begin = reinterpret_cast<const uint8_t*>(GetQuickOatCodeBegin(m)); |
| if (oat_code_begin == nullptr) { |
| return nullptr; |
| } |
| return oat_code_begin + GetQuickOatCodeSize(m); |
| } |
| |
| static void Callback(mirror::Object* obj, void* arg) SHARED_REQUIRES(Locks::mutator_lock_) { |
| DCHECK(obj != nullptr); |
| DCHECK(arg != nullptr); |
| ImageDumper* state = reinterpret_cast<ImageDumper*>(arg); |
| if (!state->InDumpSpace(obj)) { |
| return; |
| } |
| |
| size_t object_bytes = obj->SizeOf(); |
| size_t alignment_bytes = RoundUp(object_bytes, kObjectAlignment) - object_bytes; |
| state->stats_.object_bytes += object_bytes; |
| state->stats_.alignment_bytes += alignment_bytes; |
| |
| std::ostream& os = state->vios_.Stream(); |
| |
| mirror::Class* obj_class = obj->GetClass(); |
| if (obj_class->IsArrayClass()) { |
| os << StringPrintf("%p: %s length:%d\n", obj, PrettyDescriptor(obj_class).c_str(), |
| obj->AsArray()->GetLength()); |
| } else if (obj->IsClass()) { |
| mirror::Class* klass = obj->AsClass(); |
| os << StringPrintf("%p: java.lang.Class \"%s\" (", obj, PrettyDescriptor(klass).c_str()) |
| << klass->GetStatus() << ")\n"; |
| } else if (obj_class->IsStringClass()) { |
| os << StringPrintf("%p: java.lang.String %s\n", obj, |
| PrintableString(obj->AsString()->ToModifiedUtf8().c_str()).c_str()); |
| } else { |
| os << StringPrintf("%p: %s\n", obj, PrettyDescriptor(obj_class).c_str()); |
| } |
| ScopedIndentation indent1(&state->vios_); |
| DumpFields(os, obj, obj_class); |
| const size_t image_pointer_size = state->image_header_.GetPointerSize(); |
| if (obj->IsObjectArray()) { |
| auto* obj_array = obj->AsObjectArray<mirror::Object>(); |
| for (int32_t i = 0, length = obj_array->GetLength(); i < length; i++) { |
| mirror::Object* value = obj_array->Get(i); |
| size_t run = 0; |
| for (int32_t j = i + 1; j < length; j++) { |
| if (value == obj_array->Get(j)) { |
| run++; |
| } else { |
| break; |
| } |
| } |
| if (run == 0) { |
| os << StringPrintf("%d: ", i); |
| } else { |
| os << StringPrintf("%d to %zd: ", i, i + run); |
| i = i + run; |
| } |
| mirror::Class* value_class = |
| (value == nullptr) ? obj_class->GetComponentType() : value->GetClass(); |
| PrettyObjectValue(os, value_class, value); |
| } |
| } else if (obj->IsClass()) { |
| mirror::Class* klass = obj->AsClass(); |
| if (klass->NumStaticFields() != 0) { |
| os << "STATICS:\n"; |
| ScopedIndentation indent2(&state->vios_); |
| for (ArtField& field : klass->GetSFields()) { |
| PrintField(os, &field, field.GetDeclaringClass()); |
| } |
| } |
| } else { |
| auto it = state->dex_caches_.find(obj); |
| if (it != state->dex_caches_.end()) { |
| auto* dex_cache = down_cast<mirror::DexCache*>(obj); |
| const auto& field_section = state->image_header_.GetImageSection( |
| ImageHeader::kSectionArtFields); |
| const auto& method_section = state->image_header_.GetMethodsSection(); |
| size_t num_methods = dex_cache->NumResolvedMethods(); |
| if (num_methods != 0u) { |
| os << "Methods (size=" << num_methods << "):"; |
| ScopedIndentation indent2(&state->vios_); |
| auto* resolved_methods = dex_cache->GetResolvedMethods(); |
| for (size_t i = 0, length = dex_cache->NumResolvedMethods(); i < length; ++i) { |
| auto* elem = mirror::DexCache::GetElementPtrSize(resolved_methods, |
| i, |
| image_pointer_size); |
| size_t run = 0; |
| for (size_t j = i + 1; |
| j != length && elem == mirror::DexCache::GetElementPtrSize(resolved_methods, |
| j, |
| image_pointer_size); |
| ++j, ++run) {} |
| if (run == 0) { |
| os << StringPrintf("%zd: ", i); |
| } else { |
| os << StringPrintf("%zd to %zd: ", i, i + run); |
| i = i + run; |
| } |
| std::string msg; |
| if (elem == nullptr) { |
| msg = "null"; |
| } else if (method_section.Contains( |
| reinterpret_cast<uint8_t*>(elem) - state->image_space_.Begin())) { |
| msg = PrettyMethod(reinterpret_cast<ArtMethod*>(elem)); |
| } else { |
| msg = "<not in method section>"; |
| } |
| os << StringPrintf("%p %s\n", elem, msg.c_str()); |
| } |
| } |
| size_t num_fields = dex_cache->NumResolvedFields(); |
| if (num_fields != 0u) { |
| os << "Fields (size=" << num_fields << "):"; |
| ScopedIndentation indent2(&state->vios_); |
| auto* resolved_fields = dex_cache->GetResolvedFields(); |
| for (size_t i = 0, length = dex_cache->NumResolvedFields(); i < length; ++i) { |
| auto* elem = mirror::DexCache::GetElementPtrSize(resolved_fields, i, image_pointer_size); |
| size_t run = 0; |
| for (size_t j = i + 1; |
| j != length && elem == mirror::DexCache::GetElementPtrSize(resolved_fields, |
| j, |
| image_pointer_size); |
| ++j, ++run) {} |
| if (run == 0) { |
| os << StringPrintf("%zd: ", i); |
| } else { |
| os << StringPrintf("%zd to %zd: ", i, i + run); |
| i = i + run; |
| } |
| std::string msg; |
| if (elem == nullptr) { |
| msg = "null"; |
| } else if (field_section.Contains( |
| reinterpret_cast<uint8_t*>(elem) - state->image_space_.Begin())) { |
| msg = PrettyField(reinterpret_cast<ArtField*>(elem)); |
| } else { |
| msg = "<not in field section>"; |
| } |
| os << StringPrintf("%p %s\n", elem, msg.c_str()); |
| } |
| } |
| } |
| } |
| std::string temp; |
| state->stats_.Update(obj_class->GetDescriptor(&temp), object_bytes); |
| } |
| |
| void DumpMethod(ArtMethod* method, std::ostream& indent_os) |
| SHARED_REQUIRES(Locks::mutator_lock_) { |
| DCHECK(method != nullptr); |
| const void* quick_oat_code_begin = GetQuickOatCodeBegin(method); |
| const void* quick_oat_code_end = GetQuickOatCodeEnd(method); |
| OatQuickMethodHeader* method_header = reinterpret_cast<OatQuickMethodHeader*>( |
| reinterpret_cast<uintptr_t>(quick_oat_code_begin) - sizeof(OatQuickMethodHeader)); |
| if (method->IsNative()) { |
| if (!Runtime::Current()->GetClassLinker()->IsQuickGenericJniStub(quick_oat_code_begin)) { |
| DCHECK(method_header->GetNativeGcMap() == nullptr) << PrettyMethod(method); |
| DCHECK(method_header->GetMappingTable() == nullptr) << PrettyMethod(method); |
| } |
| bool first_occurrence; |
| uint32_t quick_oat_code_size = GetQuickOatCodeSize(method); |
| ComputeOatSize(quick_oat_code_begin, &first_occurrence); |
| if (first_occurrence) { |
| stats_.native_to_managed_code_bytes += quick_oat_code_size; |
| } |
| if (quick_oat_code_begin != method->GetEntryPointFromQuickCompiledCodePtrSize( |
| image_header_.GetPointerSize())) { |
| indent_os << StringPrintf("OAT CODE: %p\n", quick_oat_code_begin); |
| } |
| } else if (method->IsAbstract() || method->IsCalleeSaveMethod() || |
| method->IsResolutionMethod() || method->IsImtConflictMethod() || |
| method->IsImtUnimplementedMethod() || method->IsClassInitializer()) { |
| } else { |
| const DexFile::CodeItem* code_item = method->GetCodeItem(); |
| size_t dex_instruction_bytes = code_item->insns_size_in_code_units_ * 2; |
| stats_.dex_instruction_bytes += dex_instruction_bytes; |
| |
| bool first_occurrence; |
| size_t gc_map_bytes = ComputeOatSize(method_header->GetNativeGcMap(), &first_occurrence); |
| if (first_occurrence) { |
| stats_.gc_map_bytes += gc_map_bytes; |
| } |
| |
| size_t pc_mapping_table_bytes = ComputeOatSize( |
| method_header->GetMappingTable(), &first_occurrence); |
| if (first_occurrence) { |
| stats_.pc_mapping_table_bytes += pc_mapping_table_bytes; |
| } |
| |
| size_t vmap_table_bytes = 0u; |
| if (!method_header->IsOptimized()) { |
| // Method compiled with the optimizing compiler have no vmap table. |
| vmap_table_bytes = ComputeOatSize(method_header->GetVmapTable(), &first_occurrence); |
| if (first_occurrence) { |
| stats_.vmap_table_bytes += vmap_table_bytes; |
| } |
| } |
| |
| uint32_t quick_oat_code_size = GetQuickOatCodeSize(method); |
| ComputeOatSize(quick_oat_code_begin, &first_occurrence); |
| if (first_occurrence) { |
| stats_.managed_code_bytes += quick_oat_code_size; |
| if (method->IsConstructor()) { |
| if (method->IsStatic()) { |
| stats_.class_initializer_code_bytes += quick_oat_code_size; |
| } else if (dex_instruction_bytes > kLargeConstructorDexBytes) { |
| stats_.large_initializer_code_bytes += quick_oat_code_size; |
| } |
| } else if (dex_instruction_bytes > kLargeMethodDexBytes) { |
| stats_.large_method_code_bytes += quick_oat_code_size; |
| } |
| } |
| stats_.managed_code_bytes_ignoring_deduplication += quick_oat_code_size; |
| |
| uint32_t method_access_flags = method->GetAccessFlags(); |
| |
| indent_os << StringPrintf("OAT CODE: %p-%p\n", quick_oat_code_begin, quick_oat_code_end); |
| indent_os << StringPrintf("SIZE: Dex Instructions=%zd GC=%zd Mapping=%zd AccessFlags=0x%x\n", |
| dex_instruction_bytes, gc_map_bytes, pc_mapping_table_bytes, |
| method_access_flags); |
| |
| size_t total_size = dex_instruction_bytes + gc_map_bytes + pc_mapping_table_bytes + |
| vmap_table_bytes + quick_oat_code_size + ArtMethod::Size(image_header_.GetPointerSize()); |
| |
| double expansion = |
| static_cast<double>(quick_oat_code_size) / static_cast<double>(dex_instruction_bytes); |
| stats_.ComputeOutliers(total_size, expansion, method); |
| } |
| } |
| |
| std::set<const void*> already_seen_; |
| // Compute the size of the given data within the oat file and whether this is the first time |
| // this data has been requested |
| size_t ComputeOatSize(const void* oat_data, bool* first_occurrence) { |
| if (already_seen_.count(oat_data) == 0) { |
| *first_occurrence = true; |
| already_seen_.insert(oat_data); |
| } else { |
| *first_occurrence = false; |
| } |
| return oat_dumper_->ComputeSize(oat_data); |
| } |
| |
| public: |
| struct Stats { |
| size_t oat_file_bytes; |
| size_t file_bytes; |
| |
| size_t header_bytes; |
| size_t object_bytes; |
| size_t art_field_bytes; |
| size_t art_method_bytes; |
| size_t dex_cache_arrays_bytes; |
| size_t interned_strings_bytes; |
| size_t class_table_bytes; |
| size_t bitmap_bytes; |
| size_t alignment_bytes; |
| |
| size_t managed_code_bytes; |
| size_t managed_code_bytes_ignoring_deduplication; |
| size_t managed_to_native_code_bytes; |
| size_t native_to_managed_code_bytes; |
| size_t class_initializer_code_bytes; |
| size_t large_initializer_code_bytes; |
| size_t large_method_code_bytes; |
| |
| size_t gc_map_bytes; |
| size_t pc_mapping_table_bytes; |
| size_t vmap_table_bytes; |
| |
| size_t dex_instruction_bytes; |
| |
| std::vector<ArtMethod*> method_outlier; |
| std::vector<size_t> method_outlier_size; |
| std::vector<double> method_outlier_expansion; |
| std::vector<std::pair<std::string, size_t>> oat_dex_file_sizes; |
| |
| Stats() |
| : oat_file_bytes(0), |
| file_bytes(0), |
| header_bytes(0), |
| object_bytes(0), |
| art_field_bytes(0), |
| art_method_bytes(0), |
| dex_cache_arrays_bytes(0), |
| interned_strings_bytes(0), |
| class_table_bytes(0), |
| bitmap_bytes(0), |
| alignment_bytes(0), |
| managed_code_bytes(0), |
| managed_code_bytes_ignoring_deduplication(0), |
| managed_to_native_code_bytes(0), |
| native_to_managed_code_bytes(0), |
| class_initializer_code_bytes(0), |
| large_initializer_code_bytes(0), |
| large_method_code_bytes(0), |
| gc_map_bytes(0), |
| pc_mapping_table_bytes(0), |
| vmap_table_bytes(0), |
| dex_instruction_bytes(0) {} |
| |
| struct SizeAndCount { |
| SizeAndCount(size_t bytes_in, size_t count_in) : bytes(bytes_in), count(count_in) {} |
| size_t bytes; |
| size_t count; |
| }; |
| typedef SafeMap<std::string, SizeAndCount> SizeAndCountTable; |
| SizeAndCountTable sizes_and_counts; |
| |
| void Update(const char* descriptor, size_t object_bytes_in) { |
| SizeAndCountTable::iterator it = sizes_and_counts.find(descriptor); |
| if (it != sizes_and_counts.end()) { |
| it->second.bytes += object_bytes_in; |
| it->second.count += 1; |
| } else { |
| sizes_and_counts.Put(descriptor, SizeAndCount(object_bytes_in, 1)); |
| } |
| } |
| |
| double PercentOfOatBytes(size_t size) { |
| return (static_cast<double>(size) / static_cast<double>(oat_file_bytes)) * 100; |
| } |
| |
| double PercentOfFileBytes(size_t size) { |
| return (static_cast<double>(size) / static_cast<double>(file_bytes)) * 100; |
| } |
| |
| double PercentOfObjectBytes(size_t size) { |
| return (static_cast<double>(size) / static_cast<double>(object_bytes)) * 100; |
| } |
| |
| void ComputeOutliers(size_t total_size, double expansion, ArtMethod* method) { |
| method_outlier_size.push_back(total_size); |
| method_outlier_expansion.push_back(expansion); |
| method_outlier.push_back(method); |
| } |
| |
| void DumpOutliers(std::ostream& os) |
| SHARED_REQUIRES(Locks::mutator_lock_) { |
| size_t sum_of_sizes = 0; |
| size_t sum_of_sizes_squared = 0; |
| size_t sum_of_expansion = 0; |
| size_t sum_of_expansion_squared = 0; |
| size_t n = method_outlier_size.size(); |
| if (n == 0) { |
| return; |
| } |
| for (size_t i = 0; i < n; i++) { |
| size_t cur_size = method_outlier_size[i]; |
| sum_of_sizes += cur_size; |
| sum_of_sizes_squared += cur_size * cur_size; |
| double cur_expansion = method_outlier_expansion[i]; |
| sum_of_expansion += cur_expansion; |
| sum_of_expansion_squared += cur_expansion * cur_expansion; |
| } |
| size_t size_mean = sum_of_sizes / n; |
| size_t size_variance = (sum_of_sizes_squared - sum_of_sizes * size_mean) / (n - 1); |
| double expansion_mean = sum_of_expansion / n; |
| double expansion_variance = |
| (sum_of_expansion_squared - sum_of_expansion * expansion_mean) / (n - 1); |
| |
| // Dump methods whose size is a certain number of standard deviations from the mean |
| size_t dumped_values = 0; |
| size_t skipped_values = 0; |
| for (size_t i = 100; i > 0; i--) { // i is the current number of standard deviations |
| size_t cur_size_variance = i * i * size_variance; |
| bool first = true; |
| for (size_t j = 0; j < n; j++) { |
| size_t cur_size = method_outlier_size[j]; |
| if (cur_size > size_mean) { |
| size_t cur_var = cur_size - size_mean; |
| cur_var = cur_var * cur_var; |
| if (cur_var > cur_size_variance) { |
| if (dumped_values > 20) { |
| if (i == 1) { |
| skipped_values++; |
| } else { |
| i = 2; // jump to counting for 1 standard deviation |
| break; |
| } |
| } else { |
| if (first) { |
| os << "\nBig methods (size > " << i << " standard deviations the norm):\n"; |
| first = false; |
| } |
| os << PrettyMethod(method_outlier[j]) << " requires storage of " |
| << PrettySize(cur_size) << "\n"; |
| method_outlier_size[j] = 0; // don't consider this method again |
| dumped_values++; |
| } |
| } |
| } |
| } |
| } |
| if (skipped_values > 0) { |
| os << "... skipped " << skipped_values |
| << " methods with size > 1 standard deviation from the norm\n"; |
| } |
| os << std::flush; |
| |
| // Dump methods whose expansion is a certain number of standard deviations from the mean |
| dumped_values = 0; |
| skipped_values = 0; |
| for (size_t i = 10; i > 0; i--) { // i is the current number of standard deviations |
| double cur_expansion_variance = i * i * expansion_variance; |
| bool first = true; |
| for (size_t j = 0; j < n; j++) { |
| double cur_expansion = method_outlier_expansion[j]; |
| if (cur_expansion > expansion_mean) { |
| size_t cur_var = cur_expansion - expansion_mean; |
| cur_var = cur_var * cur_var; |
| if (cur_var > cur_expansion_variance) { |
| if (dumped_values > 20) { |
| if (i == 1) { |
| skipped_values++; |
| } else { |
| i = 2; // jump to counting for 1 standard deviation |
| break; |
| } |
| } else { |
| if (first) { |
| os << "\nLarge expansion methods (size > " << i |
| << " standard deviations the norm):\n"; |
| first = false; |
| } |
| os << PrettyMethod(method_outlier[j]) << " expanded code by " |
| << cur_expansion << "\n"; |
| method_outlier_expansion[j] = 0.0; // don't consider this method again |
| dumped_values++; |
| } |
| } |
| } |
| } |
| } |
| if (skipped_values > 0) { |
| os << "... skipped " << skipped_values |
| << " methods with expansion > 1 standard deviation from the norm\n"; |
| } |
| os << "\n" << std::flush; |
| } |
| |
| void Dump(std::ostream& os, std::ostream& indent_os) |
| SHARED_REQUIRES(Locks::mutator_lock_) { |
| { |
| os << "art_file_bytes = " << PrettySize(file_bytes) << "\n\n" |
| << "art_file_bytes = header_bytes + object_bytes + alignment_bytes\n"; |
| indent_os << StringPrintf("header_bytes = %8zd (%2.0f%% of art file bytes)\n" |
| "object_bytes = %8zd (%2.0f%% of art file bytes)\n" |
| "art_field_bytes = %8zd (%2.0f%% of art file bytes)\n" |
| "art_method_bytes = %8zd (%2.0f%% of art file bytes)\n" |
| "dex_cache_arrays_bytes = %8zd (%2.0f%% of art file bytes)\n" |
| "interned_string_bytes = %8zd (%2.0f%% of art file bytes)\n" |
| "class_table_bytes = %8zd (%2.0f%% of art file bytes)\n" |
| "bitmap_bytes = %8zd (%2.0f%% of art file bytes)\n" |
| "alignment_bytes = %8zd (%2.0f%% of art file bytes)\n\n", |
| header_bytes, PercentOfFileBytes(header_bytes), |
| object_bytes, PercentOfFileBytes(object_bytes), |
| art_field_bytes, PercentOfFileBytes(art_field_bytes), |
| art_method_bytes, PercentOfFileBytes(art_method_bytes), |
| dex_cache_arrays_bytes, |
| PercentOfFileBytes(dex_cache_arrays_bytes), |
| interned_strings_bytes, |
| PercentOfFileBytes(interned_strings_bytes), |
| class_table_bytes, PercentOfFileBytes(class_table_bytes), |
| bitmap_bytes, PercentOfFileBytes(bitmap_bytes), |
| alignment_bytes, PercentOfFileBytes(alignment_bytes)) |
| << std::flush; |
| CHECK_EQ(file_bytes, |
| header_bytes + object_bytes + art_field_bytes + art_method_bytes + |
| dex_cache_arrays_bytes + interned_strings_bytes + class_table_bytes + |
| bitmap_bytes + alignment_bytes); |
| } |
| |
| os << "object_bytes breakdown:\n"; |
| size_t object_bytes_total = 0; |
| for (const auto& sizes_and_count : sizes_and_counts) { |
| const std::string& descriptor(sizes_and_count.first); |
| double average = static_cast<double>(sizes_and_count.second.bytes) / |
| static_cast<double>(sizes_and_count.second.count); |
| double percent = PercentOfObjectBytes(sizes_and_count.second.bytes); |
| os << StringPrintf("%32s %8zd bytes %6zd instances " |
| "(%4.0f bytes/instance) %2.0f%% of object_bytes\n", |
| descriptor.c_str(), sizes_and_count.second.bytes, |
| sizes_and_count.second.count, average, percent); |
| object_bytes_total += sizes_and_count.second.bytes; |
| } |
| os << "\n" << std::flush; |
| CHECK_EQ(object_bytes, object_bytes_total); |
| |
| os << StringPrintf("oat_file_bytes = %8zd\n" |
| "managed_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" |
| "managed_to_native_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" |
| "native_to_managed_code_bytes = %8zd (%2.0f%% of oat file bytes)\n\n" |
| "class_initializer_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" |
| "large_initializer_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" |
| "large_method_code_bytes = %8zd (%2.0f%% of oat file bytes)\n\n", |
| oat_file_bytes, |
| managed_code_bytes, |
| PercentOfOatBytes(managed_code_bytes), |
| managed_to_native_code_bytes, |
| PercentOfOatBytes(managed_to_native_code_bytes), |
| native_to_managed_code_bytes, |
| PercentOfOatBytes(native_to_managed_code_bytes), |
| class_initializer_code_bytes, |
| PercentOfOatBytes(class_initializer_code_bytes), |
| large_initializer_code_bytes, |
| PercentOfOatBytes(large_initializer_code_bytes), |
| large_method_code_bytes, |
| PercentOfOatBytes(large_method_code_bytes)) |
| << "DexFile sizes:\n"; |
| for (const std::pair<std::string, size_t>& oat_dex_file_size : oat_dex_file_sizes) { |
| os << StringPrintf("%s = %zd (%2.0f%% of oat file bytes)\n", |
| oat_dex_file_size.first.c_str(), oat_dex_file_size.second, |
| PercentOfOatBytes(oat_dex_file_size.second)); |
| } |
| |
| os << "\n" << StringPrintf("gc_map_bytes = %7zd (%2.0f%% of oat file bytes)\n" |
| "pc_mapping_table_bytes = %7zd (%2.0f%% of oat file bytes)\n" |
| "vmap_table_bytes = %7zd (%2.0f%% of oat file bytes)\n\n", |
| gc_map_bytes, PercentOfOatBytes(gc_map_bytes), |
| pc_mapping_table_bytes, PercentOfOatBytes(pc_mapping_table_bytes), |
| vmap_table_bytes, PercentOfOatBytes(vmap_table_bytes)) |
| << std::flush; |
| |
| os << StringPrintf("dex_instruction_bytes = %zd\n", dex_instruction_bytes) |
| << StringPrintf("managed_code_bytes expansion = %.2f (ignoring deduplication %.2f)\n\n", |
| static_cast<double>(managed_code_bytes) / |
| static_cast<double>(dex_instruction_bytes), |
| static_cast<double>(managed_code_bytes_ignoring_deduplication) / |
| static_cast<double>(dex_instruction_bytes)) |
| << std::flush; |
| |
| DumpOutliers(os); |
| } |
| } stats_; |
| |
| private: |
| enum { |
| // Number of bytes for a constructor to be considered large. Based on the 1000 basic block |
| // threshold, we assume 2 bytes per instruction and 2 instructions per block. |
| kLargeConstructorDexBytes = 4000, |
| // Number of bytes for a method to be considered large. Based on the 4000 basic block |
| // threshold, we assume 2 bytes per instruction and 2 instructions per block. |
| kLargeMethodDexBytes = 16000 |
| }; |
| |
| // For performance, use the *os_ directly for anything that doesn't need indentation |
| // and prepare an indentation stream with default indentation 1. |
| std::ostream* os_; |
| VariableIndentationOutputStream vios_; |
| ScopedIndentation indent1_; |
| |
| gc::space::ImageSpace& image_space_; |
| const ImageHeader& image_header_; |
| std::unique_ptr<OatDumper> oat_dumper_; |
| OatDumperOptions* oat_dumper_options_; |
| std::set<mirror::Object*> dex_caches_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ImageDumper); |
| }; |
| |
| static int DumpImage(gc::space::ImageSpace* image_space, |
| OatDumperOptions* options, |
| std::ostream* os) SHARED_REQUIRES(Locks::mutator_lock_) { |
| const ImageHeader& image_header = image_space->GetImageHeader(); |
| if (!image_header.IsValid()) { |
| fprintf(stderr, "Invalid image header %s\n", image_space->GetImageLocation().c_str()); |
| return EXIT_FAILURE; |
| } |
| ImageDumper image_dumper(os, *image_space, image_header, options); |
| if (!image_dumper.Dump()) { |
| return EXIT_FAILURE; |
| } |
| return EXIT_SUCCESS; |
| } |
| |
| static int DumpImages(Runtime* runtime, OatDumperOptions* options, std::ostream* os) { |
| // Dumping the image, no explicit class loader. |
| ScopedNullHandle<mirror::ClassLoader> null_class_loader; |
| options->class_loader_ = &null_class_loader; |
| |
| ScopedObjectAccess soa(Thread::Current()); |
| if (options->app_image_ != nullptr) { |
| if (options->app_oat_ == nullptr) { |
| LOG(ERROR) << "Can not dump app image without app oat file"; |
| return EXIT_FAILURE; |
| } |
| // We can't know if the app image is 32 bits yet, but it contains pointers into the oat file. |
| // We need to map the oat file in the low 4gb or else the fixup wont be able to fit oat file |
| // pointers into 32 bit pointer sized ArtMethods. |
| std::string error_msg; |
| std::unique_ptr<OatFile> oat_file(OatFile::Open(options->app_oat_, |
| options->app_oat_, |
| nullptr, |
| nullptr, |
| false, |
| /*low_4gb*/true, |
| nullptr, |
| &error_msg)); |
| if (oat_file == nullptr) { |
| LOG(ERROR) << "Failed to open oat file " << options->app_oat_ << " with error " << error_msg; |
| return EXIT_FAILURE; |
| } |
| std::unique_ptr<gc::space::ImageSpace> space( |
| gc::space::ImageSpace::CreateFromAppImage(options->app_image_, oat_file.get(), &error_msg)); |
| if (space == nullptr) { |
| LOG(ERROR) << "Failed to open app image " << options->app_image_ << " with error " |
| << error_msg; |
| } |
| // Open dex files for the image. |
| std::vector<std::unique_ptr<const DexFile>> dex_files; |
| if (!runtime->GetClassLinker()->OpenImageDexFiles(space.get(), &dex_files, &error_msg)) { |
| LOG(ERROR) << "Failed to open app image dex files " << options->app_image_ << " with error " |
| << error_msg; |
| } |
| // Dump the actual image. |
| int result = DumpImage(space.get(), options, os); |
| if (result != EXIT_SUCCESS) { |
| return result; |
| } |
| // Fall through to dump the boot images. |
| } |
| |
| gc::Heap* heap = runtime->GetHeap(); |
| CHECK(heap->HasBootImageSpace()) << "No image spaces"; |
| for (gc::space::ImageSpace* image_space : heap->GetBootImageSpaces()) { |
| int result = DumpImage(image_space, options, os); |
| if (result != EXIT_SUCCESS) { |
| return result; |
| } |
| } |
| return EXIT_SUCCESS; |
| } |
| |
| static int DumpOatWithRuntime(Runtime* runtime, OatFile* oat_file, OatDumperOptions* options, |
| std::ostream* os) { |
| CHECK(runtime != nullptr && oat_file != nullptr && options != nullptr); |
| |
| Thread* self = Thread::Current(); |
| CHECK(self != nullptr); |
| // Need well-known-classes. |
| WellKnownClasses::Init(self->GetJniEnv()); |
| |
| // Need to register dex files to get a working dex cache. |
| ScopedObjectAccess soa(self); |
| ClassLinker* class_linker = runtime->GetClassLinker(); |
| runtime->GetOatFileManager().RegisterOatFile(std::unique_ptr<const OatFile>(oat_file)); |
| std::vector<const DexFile*> class_path; |
| for (const OatFile::OatDexFile* odf : oat_file->GetOatDexFiles()) { |
| std::string error_msg; |
| const DexFile* const dex_file = OpenDexFile(odf, &error_msg); |
| CHECK(dex_file != nullptr) << error_msg; |
| class_linker->RegisterDexFile(*dex_file, runtime->GetLinearAlloc()); |
| class_path.push_back(dex_file); |
| } |
| |
| // Need a class loader. |
| // Fake that we're a compiler. |
| jobject class_loader = class_linker->CreatePathClassLoader(self, class_path); |
| |
| // Use the class loader while dumping. |
| StackHandleScope<1> scope(self); |
| Handle<mirror::ClassLoader> loader_handle = scope.NewHandle( |
| soa.Decode<mirror::ClassLoader*>(class_loader)); |
| options->class_loader_ = &loader_handle; |
| |
| OatDumper oat_dumper(*oat_file, *options); |
| bool success = oat_dumper.Dump(*os); |
| return (success) ? EXIT_SUCCESS : EXIT_FAILURE; |
| } |
| |
| static int DumpOatWithoutRuntime(OatFile* oat_file, OatDumperOptions* options, std::ostream* os) { |
| CHECK(oat_file != nullptr && options != nullptr); |
| // No image = no class loader. |
| ScopedNullHandle<mirror::ClassLoader> null_class_loader; |
| options->class_loader_ = &null_class_loader; |
| |
| OatDumper oat_dumper(*oat_file, *options); |
| bool success = oat_dumper.Dump(*os); |
| return (success) ? EXIT_SUCCESS : EXIT_FAILURE; |
| } |
| |
| static int DumpOat(Runtime* runtime, const char* oat_filename, OatDumperOptions* options, |
| std::ostream* os) { |
| std::string error_msg; |
| OatFile* oat_file = OatFile::Open(oat_filename, |
| oat_filename, |
| nullptr, |
| nullptr, |
| false, |
| /*low_4gb*/false, |
| nullptr, |
| &error_msg); |
| if (oat_file == nullptr) { |
| fprintf(stderr, "Failed to open oat file from '%s': %s\n", oat_filename, error_msg.c_str()); |
| return EXIT_FAILURE; |
| } |
| |
| if (runtime != nullptr) { |
| return DumpOatWithRuntime(runtime, oat_file, options, os); |
| } else { |
| return DumpOatWithoutRuntime(oat_file, options, os); |
| } |
| } |
| |
| static int SymbolizeOat(const char* oat_filename, std::string& output_name, bool no_bits) { |
| std::string error_msg; |
| OatFile* oat_file = OatFile::Open(oat_filename, |
| oat_filename, |
| nullptr, |
| nullptr, |
| false, |
| /*low_4gb*/false, |
| nullptr, |
| &error_msg); |
| if (oat_file == nullptr) { |
| fprintf(stderr, "Failed to open oat file from '%s': %s\n", oat_filename, error_msg.c_str()); |
| return EXIT_FAILURE; |
| } |
| |
| bool result; |
| // Try to produce an ELF file of the same type. This is finicky, as we have used 32-bit ELF |
| // files for 64-bit code in the past. |
| if (Is64BitInstructionSet(oat_file->GetOatHeader().GetInstructionSet())) { |
| OatSymbolizer<ElfTypes64> oat_symbolizer(oat_file, output_name, no_bits); |
| result = oat_symbolizer.Symbolize(); |
| } else { |
| OatSymbolizer<ElfTypes32> oat_symbolizer(oat_file, output_name, no_bits); |
| result = oat_symbolizer.Symbolize(); |
| } |
| if (!result) { |
| fprintf(stderr, "Failed to symbolize\n"); |
| return EXIT_FAILURE; |
| } |
| |
| return EXIT_SUCCESS; |
| } |
| |
| struct OatdumpArgs : public CmdlineArgs { |
| protected: |
| using Base = CmdlineArgs; |
| |
| virtual ParseStatus ParseCustom(const StringPiece& option, |
| std::string* error_msg) OVERRIDE { |
| { |
| ParseStatus base_parse = Base::ParseCustom(option, error_msg); |
| if (base_parse != kParseUnknownArgument) { |
| return base_parse; |
| } |
| } |
| |
| if (option.starts_with("--oat-file=")) { |
| oat_filename_ = option.substr(strlen("--oat-file=")).data(); |
| } else if (option.starts_with("--image=")) { |
| image_location_ = option.substr(strlen("--image=")).data(); |
| } else if (option =="--dump:raw_mapping_table") { |
| dump_raw_mapping_table_ = true; |
| } else if (option == "--dump:raw_gc_map") { |
| dump_raw_gc_map_ = true; |
| } else if (option == "--no-dump:vmap") { |
| dump_vmap_ = false; |
| } else if (option =="--dump:code_info_stack_maps") { |
| dump_code_info_stack_maps_ = true; |
| } else if (option == "--no-disassemble") { |
| disassemble_code_ = false; |
| } else if (option =="--header-only") { |
| dump_header_only_ = true; |
| } else if (option.starts_with("--symbolize=")) { |
| oat_filename_ = option.substr(strlen("--symbolize=")).data(); |
| symbolize_ = true; |
| } else if (option.starts_with("--only-keep-debug")) { |
| only_keep_debug_ = true; |
| } else if (option.starts_with("--class-filter=")) { |
| class_filter_ = option.substr(strlen("--class-filter=")).data(); |
| } else if (option.starts_with("--method-filter=")) { |
| method_filter_ = option.substr(strlen("--method-filter=")).data(); |
| } else if (option.starts_with("--list-classes")) { |
| list_classes_ = true; |
| } else if (option.starts_with("--list-methods")) { |
| list_methods_ = true; |
| } else if (option.starts_with("--export-dex-to=")) { |
| export_dex_location_ = option.substr(strlen("--export-dex-to=")).data(); |
| } else if (option.starts_with("--addr2instr=")) { |
| if (!ParseUint(option.substr(strlen("--addr2instr=")).data(), &addr2instr_)) { |
| *error_msg = "Address conversion failed"; |
| return kParseError; |
| } |
| } else if (option.starts_with("--app-image=")) { |
| app_image_ = option.substr(strlen("--app-image=")).data(); |
| } else if (option.starts_with("--app-oat=")) { |
| app_oat_ = option.substr(strlen("--app-oat=")).data(); |
| } else { |
| return kParseUnknownArgument; |
| } |
| |
| return kParseOk; |
| } |
| |
| virtual ParseStatus ParseChecks(std::string* error_msg) OVERRIDE { |
| // Infer boot image location from the image location if possible. |
| if (boot_image_location_ == nullptr) { |
| boot_image_location_ = image_location_; |
| } |
| |
| // Perform the parent checks. |
| ParseStatus parent_checks = Base::ParseChecks(error_msg); |
| if (parent_checks != kParseOk) { |
| return parent_checks; |
| } |
| |
| // Perform our own checks. |
| if (image_location_ == nullptr && oat_filename_ == nullptr) { |
| *error_msg = "Either --image or --oat-file must be specified"; |
| return kParseError; |
| } else if (image_location_ != nullptr && oat_filename_ != nullptr) { |
| *error_msg = "Either --image or --oat-file must be specified but not both"; |
| return kParseError; |
| } |
| |
| return kParseOk; |
| } |
| |
| virtual std::string GetUsage() const { |
| std::string usage; |
| |
| usage += |
| "Usage: oatdump [options] ...\n" |
| " Example: oatdump --image=$ANDROID_PRODUCT_OUT/system/framework/boot.art\n" |
| " Example: adb shell oatdump --image=/system/framework/boot.art\n" |
| "\n" |
| // Either oat-file or image is required. |
| " --oat-file=<file.oat>: specifies an input oat filename.\n" |
| " Example: --oat-file=/system/framework/boot.oat\n" |
| "\n" |
| " --image=<file.art>: specifies an input image location.\n" |
| " Example: --image=/system/framework/boot.art\n" |
| "\n" |
| " --app-image=<file.art>: specifies an input app image. Must also have a specified\n" |
| " boot image and app oat file.\n" |
| " Example: --app-image=app.art\n" |
| "\n" |
| " --app-oat=<file.odex>: specifies an input app oat.\n" |
| " Example: --app-oat=app.odex\n" |
| "\n"; |
| |
| usage += Base::GetUsage(); |
| |
| usage += // Optional. |
| " --dump:raw_mapping_table enables dumping of the mapping table.\n" |
| " Example: --dump:raw_mapping_table\n" |
| "\n" |
| " --dump:raw_gc_map enables dumping of the GC map.\n" |
| " Example: --dump:raw_gc_map\n" |
| "\n" |
| " --no-dump:vmap may be used to disable vmap dumping.\n" |
| " Example: --no-dump:vmap\n" |
| "\n" |
| " --dump:code_info_stack_maps enables dumping of stack maps in CodeInfo sections.\n" |
| " Example: --dump:code_info_stack_maps\n" |
| "\n" |
| " --no-disassemble may be used to disable disassembly.\n" |
| " Example: --no-disassemble\n" |
| "\n" |
| " --header-only may be used to print only the oat header.\n" |
| " Example: --header-only\n" |
| "\n" |
| " --list-classes may be used to list target file classes (can be used with filters).\n" |
| " Example: --list-classes\n" |
| " Example: --list-classes --class-filter=com.example.foo\n" |
| "\n" |
| " --list-methods may be used to list target file methods (can be used with filters).\n" |
| " Example: --list-methods\n" |
| " Example: --list-methods --class-filter=com.example --method-filter=foo\n" |
| "\n" |
| " --symbolize=<file.oat>: output a copy of file.oat with elf symbols included.\n" |
| " Example: --symbolize=/system/framework/boot.oat\n" |
| "\n" |
| " --only-keep-debug<file.oat>: Modifies the behaviour of --symbolize so that\n" |
| " .rodata and .text sections are omitted in the output file to save space.\n" |
| " Example: --symbolize=/system/framework/boot.oat --only-keep-debug\n" |
| "\n" |
| " --class-filter=<class name>: only dumps classes that contain the filter.\n" |
| " Example: --class-filter=com.example.foo\n" |
| "\n" |
| " --method-filter=<method name>: only dumps methods that contain the filter.\n" |
| " Example: --method-filter=foo\n" |
| "\n" |
| " --export-dex-to=<directory>: may be used to export oat embedded dex files.\n" |
| " Example: --export-dex-to=/data/local/tmp\n" |
| "\n" |
| " --addr2instr=<address>: output matching method disassembled code from relative\n" |
| " address (e.g. PC from crash dump)\n" |
| " Example: --addr2instr=0x00001a3b\n" |
| "\n"; |
| |
| return usage; |
| } |
| |
| public: |
| const char* oat_filename_ = nullptr; |
| const char* class_filter_ = ""; |
| const char* method_filter_ = ""; |
| const char* image_location_ = nullptr; |
| std::string elf_filename_prefix_; |
| bool dump_raw_mapping_table_ = false; |
| bool dump_raw_gc_map_ = false; |
| bool dump_vmap_ = true; |
| bool dump_code_info_stack_maps_ = false; |
| bool disassemble_code_ = true; |
| bool symbolize_ = false; |
| bool only_keep_debug_ = false; |
| bool list_classes_ = false; |
| bool list_methods_ = false; |
| bool dump_header_only_ = false; |
| uint32_t addr2instr_ = 0; |
| const char* export_dex_location_ = nullptr; |
| const char* app_image_ = nullptr; |
| const char* app_oat_ = nullptr; |
| }; |
| |
| struct OatdumpMain : public CmdlineMain<OatdumpArgs> { |
| virtual bool NeedsRuntime() OVERRIDE { |
| CHECK(args_ != nullptr); |
| |
| // If we are only doing the oat file, disable absolute_addresses. Keep them for image dumping. |
| bool absolute_addresses = (args_->oat_filename_ == nullptr); |
| |
| oat_dumper_options_.reset(new OatDumperOptions( |
| args_->dump_raw_mapping_table_, |
| args_->dump_raw_gc_map_, |
| args_->dump_vmap_, |
| args_->dump_code_info_stack_maps_, |
| args_->disassemble_code_, |
| absolute_addresses, |
| args_->class_filter_, |
| args_->method_filter_, |
| args_->list_classes_, |
| args_->list_methods_, |
| args_->dump_header_only_, |
| args_->export_dex_location_, |
| args_->app_image_, |
| args_->app_oat_, |
| args_->addr2instr_)); |
| |
| return (args_->boot_image_location_ != nullptr || args_->image_location_ != nullptr) && |
| !args_->symbolize_; |
| } |
| |
| virtual bool ExecuteWithoutRuntime() OVERRIDE { |
| CHECK(args_ != nullptr); |
| CHECK(args_->oat_filename_ != nullptr); |
| |
| MemMap::Init(); |
| |
| if (args_->symbolize_) { |
| // ELF has special kind of section called SHT_NOBITS which allows us to create |
| // sections which exist but their data is omitted from the ELF file to save space. |
| // This is what "strip --only-keep-debug" does when it creates separate ELF file |
| // with only debug data. We use it in similar way to exclude .rodata and .text. |
| bool no_bits = args_->only_keep_debug_; |
| return SymbolizeOat(args_->oat_filename_, args_->output_name_, no_bits) == EXIT_SUCCESS; |
| } else { |
| return DumpOat(nullptr, |
| args_->oat_filename_, |
| oat_dumper_options_.get(), |
| args_->os_) == EXIT_SUCCESS; |
| } |
| } |
| |
| virtual bool ExecuteWithRuntime(Runtime* runtime) { |
| CHECK(args_ != nullptr); |
| |
| if (args_->oat_filename_ != nullptr) { |
| return DumpOat(runtime, |
| args_->oat_filename_, |
| oat_dumper_options_.get(), |
| args_->os_) == EXIT_SUCCESS; |
| } |
| |
| return DumpImages(runtime, oat_dumper_options_.get(), args_->os_) == EXIT_SUCCESS; |
| } |
| |
| std::unique_ptr<OatDumperOptions> oat_dumper_options_; |
| }; |
| |
| } // namespace art |
| |
| int main(int argc, char** argv) { |
| art::OatdumpMain main; |
| return main.Main(argc, argv); |
| } |