oatdump.cc revision bf9611f821697b14bf9e170f503c3f47613b046b
1/* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#include <stdio.h> 18#include <stdlib.h> 19 20#include <fstream> 21#include <iostream> 22#include <map> 23#include <set> 24#include <string> 25#include <unordered_map> 26#include <vector> 27 28#include "arch/instruction_set_features.h" 29#include "art_field-inl.h" 30#include "art_method-inl.h" 31#include "base/stl_util.h" 32#include "base/unix_file/fd_file.h" 33#include "class_linker.h" 34#include "class_linker-inl.h" 35#include "debug/elf_debug_writer.h" 36#include "debug/method_debug_info.h" 37#include "dex_file-inl.h" 38#include "dex_instruction.h" 39#include "disassembler.h" 40#include "elf_builder.h" 41#include "gc_map.h" 42#include "gc/space/image_space.h" 43#include "gc/space/large_object_space.h" 44#include "gc/space/space-inl.h" 45#include "image-inl.h" 46#include "indenter.h" 47#include "linker/buffered_output_stream.h" 48#include "linker/file_output_stream.h" 49#include "mapping_table.h" 50#include "mirror/array-inl.h" 51#include "mirror/class-inl.h" 52#include "mirror/dex_cache-inl.h" 53#include "mirror/object-inl.h" 54#include "mirror/object_array-inl.h" 55#include "oat.h" 56#include "oat_file-inl.h" 57#include "oat_file_manager.h" 58#include "os.h" 59#include "safe_map.h" 60#include "scoped_thread_state_change.h" 61#include "stack_map.h" 62#include "ScopedLocalRef.h" 63#include "thread_list.h" 64#include "verifier/method_verifier.h" 65#include "vmap_table.h" 66#include "well_known_classes.h" 67 68#include <sys/stat.h> 69#include "cmdline.h" 70 71namespace art { 72 73const char* image_methods_descriptions_[] = { 74 "kResolutionMethod", 75 "kImtConflictMethod", 76 "kImtUnimplementedMethod", 77 "kCalleeSaveMethod", 78 "kRefsOnlySaveMethod", 79 "kRefsAndArgsSaveMethod", 80}; 81 82const char* image_roots_descriptions_[] = { 83 "kDexCaches", 84 "kClassRoots", 85}; 86 87// Map is so that we don't allocate multiple dex files for the same OatDexFile. 88static std::map<const OatFile::OatDexFile*, 89 std::unique_ptr<const DexFile>> opened_dex_files; 90 91const DexFile* OpenDexFile(const OatFile::OatDexFile* oat_dex_file, std::string* error_msg) { 92 DCHECK(oat_dex_file != nullptr); 93 auto it = opened_dex_files.find(oat_dex_file); 94 if (it != opened_dex_files.end()) { 95 return it->second.get(); 96 } 97 const DexFile* ret = oat_dex_file->OpenDexFile(error_msg).release(); 98 opened_dex_files.emplace(oat_dex_file, std::unique_ptr<const DexFile>(ret)); 99 return ret; 100} 101 102template <typename ElfTypes> 103class OatSymbolizer FINAL { 104 public: 105 OatSymbolizer(const OatFile* oat_file, const std::string& output_name, bool no_bits) : 106 oat_file_(oat_file), 107 builder_(nullptr), 108 output_name_(output_name.empty() ? "symbolized.oat" : output_name), 109 no_bits_(no_bits) { 110 } 111 112 bool Symbolize() { 113 const InstructionSet isa = oat_file_->GetOatHeader().GetInstructionSet(); 114 const InstructionSetFeatures* features = InstructionSetFeatures::FromBitmap( 115 isa, oat_file_->GetOatHeader().GetInstructionSetFeaturesBitmap()); 116 117 File* elf_file = OS::CreateEmptyFile(output_name_.c_str()); 118 std::unique_ptr<BufferedOutputStream> output_stream( 119 MakeUnique<BufferedOutputStream>(MakeUnique<FileOutputStream>(elf_file))); 120 builder_.reset(new ElfBuilder<ElfTypes>(isa, features, output_stream.get())); 121 122 builder_->Start(); 123 124 auto* rodata = builder_->GetRoData(); 125 auto* text = builder_->GetText(); 126 auto* bss = builder_->GetBss(); 127 128 const uint8_t* rodata_begin = oat_file_->Begin(); 129 const size_t rodata_size = oat_file_->GetOatHeader().GetExecutableOffset(); 130 if (no_bits_) { 131 rodata->WriteNoBitsSection(rodata_size); 132 } else { 133 rodata->Start(); 134 rodata->WriteFully(rodata_begin, rodata_size); 135 rodata->End(); 136 } 137 138 const uint8_t* text_begin = oat_file_->Begin() + rodata_size; 139 const size_t text_size = oat_file_->End() - text_begin; 140 if (no_bits_) { 141 text->WriteNoBitsSection(text_size); 142 } else { 143 text->Start(); 144 text->WriteFully(text_begin, text_size); 145 text->End(); 146 } 147 148 if (oat_file_->BssSize() != 0) { 149 bss->WriteNoBitsSection(oat_file_->BssSize()); 150 } 151 152 if (isa == kMips || isa == kMips64) { 153 builder_->WriteMIPSabiflagsSection(); 154 } 155 builder_->PrepareDynamicSection( 156 elf_file->GetPath(), rodata_size, text_size, oat_file_->BssSize()); 157 builder_->WriteDynamicSection(); 158 159 Walk(); 160 for (const auto& trampoline : debug::MakeTrampolineInfos(oat_file_->GetOatHeader())) { 161 method_debug_infos_.push_back(trampoline); 162 } 163 164 debug::WriteDebugInfo(builder_.get(), 165 ArrayRef<const debug::MethodDebugInfo>(method_debug_infos_), 166 dwarf::DW_DEBUG_FRAME_FORMAT, 167 true /* write_oat_patches */); 168 169 builder_->End(); 170 171 return builder_->Good(); 172 } 173 174 void Walk() { 175 std::vector<const OatFile::OatDexFile*> oat_dex_files = oat_file_->GetOatDexFiles(); 176 for (size_t i = 0; i < oat_dex_files.size(); i++) { 177 const OatFile::OatDexFile* oat_dex_file = oat_dex_files[i]; 178 CHECK(oat_dex_file != nullptr); 179 WalkOatDexFile(oat_dex_file); 180 } 181 } 182 183 void WalkOatDexFile(const OatFile::OatDexFile* oat_dex_file) { 184 std::string error_msg; 185 const DexFile* const dex_file = OpenDexFile(oat_dex_file, &error_msg); 186 if (dex_file == nullptr) { 187 return; 188 } 189 for (size_t class_def_index = 0; 190 class_def_index < dex_file->NumClassDefs(); 191 class_def_index++) { 192 const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(class_def_index); 193 OatClassType type = oat_class.GetType(); 194 switch (type) { 195 case kOatClassAllCompiled: 196 case kOatClassSomeCompiled: 197 WalkOatClass(oat_class, *dex_file, class_def_index); 198 break; 199 200 case kOatClassNoneCompiled: 201 case kOatClassMax: 202 // Ignore. 203 break; 204 } 205 } 206 } 207 208 void WalkOatClass(const OatFile::OatClass& oat_class, 209 const DexFile& dex_file, 210 uint32_t class_def_index) { 211 const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); 212 const uint8_t* class_data = dex_file.GetClassData(class_def); 213 if (class_data == nullptr) { // empty class such as a marker interface? 214 return; 215 } 216 // Note: even if this is an interface or a native class, we still have to walk it, as there 217 // might be a static initializer. 218 ClassDataItemIterator it(dex_file, class_data); 219 uint32_t class_method_idx = 0; 220 for (; it.HasNextStaticField(); it.Next()) { /* skip */ } 221 for (; it.HasNextInstanceField(); it.Next()) { /* skip */ } 222 for (; it.HasNextDirectMethod() || it.HasNextVirtualMethod(); it.Next()) { 223 WalkOatMethod(oat_class.GetOatMethod(class_method_idx++), 224 dex_file, 225 class_def_index, 226 it.GetMemberIndex(), 227 it.GetMethodCodeItem(), 228 it.GetMethodAccessFlags()); 229 } 230 DCHECK(!it.HasNext()); 231 } 232 233 void WalkOatMethod(const OatFile::OatMethod& oat_method, 234 const DexFile& dex_file, 235 uint32_t class_def_index, 236 uint32_t dex_method_index, 237 const DexFile::CodeItem* code_item, 238 uint32_t method_access_flags) { 239 if ((method_access_flags & kAccAbstract) != 0) { 240 // Abstract method, no code. 241 return; 242 } 243 const OatHeader& oat_header = oat_file_->GetOatHeader(); 244 const OatQuickMethodHeader* method_header = oat_method.GetOatQuickMethodHeader(); 245 if (method_header == nullptr || method_header->GetCodeSize() == 0) { 246 // No code. 247 return; 248 } 249 250 debug::MethodDebugInfo info = debug::MethodDebugInfo(); 251 info.trampoline_name = nullptr; 252 info.dex_file = &dex_file; 253 info.class_def_index = class_def_index; 254 info.dex_method_index = dex_method_index; 255 info.access_flags = method_access_flags; 256 info.code_item = code_item; 257 info.isa = oat_header.GetInstructionSet(); 258 info.deduped = !seen_offsets_.insert(oat_method.GetCodeOffset()).second; 259 info.is_native_debuggable = oat_header.IsNativeDebuggable(); 260 info.is_optimized = method_header->IsOptimized(); 261 info.is_code_address_text_relative = true; 262 info.code_address = oat_method.GetCodeOffset() - oat_header.GetExecutableOffset(); 263 info.code_size = method_header->GetCodeSize(); 264 info.frame_size_in_bytes = method_header->GetFrameSizeInBytes(); 265 info.code_info = info.is_optimized ? method_header->GetOptimizedCodeInfoPtr() : nullptr; 266 info.cfi = ArrayRef<uint8_t>(); 267 method_debug_infos_.push_back(info); 268 } 269 270 private: 271 const OatFile* oat_file_; 272 std::unique_ptr<ElfBuilder<ElfTypes> > builder_; 273 std::vector<debug::MethodDebugInfo> method_debug_infos_; 274 std::unordered_set<uint32_t> seen_offsets_; 275 const std::string output_name_; 276 bool no_bits_; 277}; 278 279class OatDumperOptions { 280 public: 281 OatDumperOptions(bool dump_raw_mapping_table, 282 bool dump_raw_gc_map, 283 bool dump_vmap, 284 bool dump_code_info_stack_maps, 285 bool disassemble_code, 286 bool absolute_addresses, 287 const char* class_filter, 288 const char* method_filter, 289 bool list_classes, 290 bool list_methods, 291 bool dump_header_only, 292 const char* export_dex_location, 293 const char* app_image, 294 const char* app_oat, 295 uint32_t addr2instr) 296 : dump_raw_mapping_table_(dump_raw_mapping_table), 297 dump_raw_gc_map_(dump_raw_gc_map), 298 dump_vmap_(dump_vmap), 299 dump_code_info_stack_maps_(dump_code_info_stack_maps), 300 disassemble_code_(disassemble_code), 301 absolute_addresses_(absolute_addresses), 302 class_filter_(class_filter), 303 method_filter_(method_filter), 304 list_classes_(list_classes), 305 list_methods_(list_methods), 306 dump_header_only_(dump_header_only), 307 export_dex_location_(export_dex_location), 308 app_image_(app_image), 309 app_oat_(app_oat), 310 addr2instr_(addr2instr), 311 class_loader_(nullptr) {} 312 313 const bool dump_raw_mapping_table_; 314 const bool dump_raw_gc_map_; 315 const bool dump_vmap_; 316 const bool dump_code_info_stack_maps_; 317 const bool disassemble_code_; 318 const bool absolute_addresses_; 319 const char* const class_filter_; 320 const char* const method_filter_; 321 const bool list_classes_; 322 const bool list_methods_; 323 const bool dump_header_only_; 324 const char* const export_dex_location_; 325 const char* const app_image_; 326 const char* const app_oat_; 327 uint32_t addr2instr_; 328 Handle<mirror::ClassLoader>* class_loader_; 329}; 330 331class OatDumper { 332 public: 333 OatDumper(const OatFile& oat_file, const OatDumperOptions& options) 334 : oat_file_(oat_file), 335 oat_dex_files_(oat_file.GetOatDexFiles()), 336 options_(options), 337 resolved_addr2instr_(0), 338 instruction_set_(oat_file_.GetOatHeader().GetInstructionSet()), 339 disassembler_(Disassembler::Create(instruction_set_, 340 new DisassemblerOptions(options_.absolute_addresses_, 341 oat_file.Begin(), 342 true /* can_read_literals_ */))) { 343 CHECK(options_.class_loader_ != nullptr); 344 CHECK(options_.class_filter_ != nullptr); 345 CHECK(options_.method_filter_ != nullptr); 346 AddAllOffsets(); 347 } 348 349 ~OatDumper() { 350 delete disassembler_; 351 } 352 353 InstructionSet GetInstructionSet() { 354 return instruction_set_; 355 } 356 357 bool Dump(std::ostream& os) { 358 bool success = true; 359 const OatHeader& oat_header = oat_file_.GetOatHeader(); 360 361 os << "MAGIC:\n"; 362 os << oat_header.GetMagic() << "\n\n"; 363 364 os << "LOCATION:\n"; 365 os << oat_file_.GetLocation() << "\n\n"; 366 367 os << "CHECKSUM:\n"; 368 os << StringPrintf("0x%08x\n\n", oat_header.GetChecksum()); 369 370 os << "INSTRUCTION SET:\n"; 371 os << oat_header.GetInstructionSet() << "\n\n"; 372 373 { 374 std::unique_ptr<const InstructionSetFeatures> features( 375 InstructionSetFeatures::FromBitmap(oat_header.GetInstructionSet(), 376 oat_header.GetInstructionSetFeaturesBitmap())); 377 os << "INSTRUCTION SET FEATURES:\n"; 378 os << features->GetFeatureString() << "\n\n"; 379 } 380 381 os << "DEX FILE COUNT:\n"; 382 os << oat_header.GetDexFileCount() << "\n\n"; 383 384#define DUMP_OAT_HEADER_OFFSET(label, offset) \ 385 os << label " OFFSET:\n"; \ 386 os << StringPrintf("0x%08x", oat_header.offset()); \ 387 if (oat_header.offset() != 0 && options_.absolute_addresses_) { \ 388 os << StringPrintf(" (%p)", oat_file_.Begin() + oat_header.offset()); \ 389 } \ 390 os << StringPrintf("\n\n"); 391 392 DUMP_OAT_HEADER_OFFSET("EXECUTABLE", GetExecutableOffset); 393 DUMP_OAT_HEADER_OFFSET("INTERPRETER TO INTERPRETER BRIDGE", 394 GetInterpreterToInterpreterBridgeOffset); 395 DUMP_OAT_HEADER_OFFSET("INTERPRETER TO COMPILED CODE BRIDGE", 396 GetInterpreterToCompiledCodeBridgeOffset); 397 DUMP_OAT_HEADER_OFFSET("JNI DLSYM LOOKUP", 398 GetJniDlsymLookupOffset); 399 DUMP_OAT_HEADER_OFFSET("QUICK GENERIC JNI TRAMPOLINE", 400 GetQuickGenericJniTrampolineOffset); 401 DUMP_OAT_HEADER_OFFSET("QUICK IMT CONFLICT TRAMPOLINE", 402 GetQuickImtConflictTrampolineOffset); 403 DUMP_OAT_HEADER_OFFSET("QUICK RESOLUTION TRAMPOLINE", 404 GetQuickResolutionTrampolineOffset); 405 DUMP_OAT_HEADER_OFFSET("QUICK TO INTERPRETER BRIDGE", 406 GetQuickToInterpreterBridgeOffset); 407#undef DUMP_OAT_HEADER_OFFSET 408 409 os << "IMAGE PATCH DELTA:\n"; 410 os << StringPrintf("%d (0x%08x)\n\n", 411 oat_header.GetImagePatchDelta(), 412 oat_header.GetImagePatchDelta()); 413 414 os << "IMAGE FILE LOCATION OAT CHECKSUM:\n"; 415 os << StringPrintf("0x%08x\n\n", oat_header.GetImageFileLocationOatChecksum()); 416 417 os << "IMAGE FILE LOCATION OAT BEGIN:\n"; 418 os << StringPrintf("0x%08x\n\n", oat_header.GetImageFileLocationOatDataBegin()); 419 420 // Print the key-value store. 421 { 422 os << "KEY VALUE STORE:\n"; 423 size_t index = 0; 424 const char* key; 425 const char* value; 426 while (oat_header.GetStoreKeyValuePairByIndex(index, &key, &value)) { 427 os << key << " = " << value << "\n"; 428 index++; 429 } 430 os << "\n"; 431 } 432 433 if (options_.absolute_addresses_) { 434 os << "BEGIN:\n"; 435 os << reinterpret_cast<const void*>(oat_file_.Begin()) << "\n\n"; 436 437 os << "END:\n"; 438 os << reinterpret_cast<const void*>(oat_file_.End()) << "\n\n"; 439 } 440 441 os << "SIZE:\n"; 442 os << oat_file_.Size() << "\n\n"; 443 444 os << std::flush; 445 446 // If set, adjust relative address to be searched 447 if (options_.addr2instr_ != 0) { 448 resolved_addr2instr_ = options_.addr2instr_ + oat_header.GetExecutableOffset(); 449 os << "SEARCH ADDRESS (executable offset + input):\n"; 450 os << StringPrintf("0x%08x\n\n", resolved_addr2instr_); 451 } 452 453 if (!options_.dump_header_only_) { 454 for (size_t i = 0; i < oat_dex_files_.size(); i++) { 455 const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i]; 456 CHECK(oat_dex_file != nullptr); 457 458 // If file export selected skip file analysis 459 if (options_.export_dex_location_) { 460 if (!ExportDexFile(os, *oat_dex_file)) { 461 success = false; 462 } 463 } else { 464 if (!DumpOatDexFile(os, *oat_dex_file)) { 465 success = false; 466 } 467 } 468 } 469 } 470 471 os << std::flush; 472 return success; 473 } 474 475 size_t ComputeSize(const void* oat_data) { 476 if (reinterpret_cast<const uint8_t*>(oat_data) < oat_file_.Begin() || 477 reinterpret_cast<const uint8_t*>(oat_data) > oat_file_.End()) { 478 return 0; // Address not in oat file 479 } 480 uintptr_t begin_offset = reinterpret_cast<uintptr_t>(oat_data) - 481 reinterpret_cast<uintptr_t>(oat_file_.Begin()); 482 auto it = offsets_.upper_bound(begin_offset); 483 CHECK(it != offsets_.end()); 484 uintptr_t end_offset = *it; 485 return end_offset - begin_offset; 486 } 487 488 InstructionSet GetOatInstructionSet() { 489 return oat_file_.GetOatHeader().GetInstructionSet(); 490 } 491 492 const void* GetQuickOatCode(ArtMethod* m) SHARED_REQUIRES(Locks::mutator_lock_) { 493 for (size_t i = 0; i < oat_dex_files_.size(); i++) { 494 const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i]; 495 CHECK(oat_dex_file != nullptr); 496 std::string error_msg; 497 const DexFile* const dex_file = OpenDexFile(oat_dex_file, &error_msg); 498 if (dex_file == nullptr) { 499 LOG(WARNING) << "Failed to open dex file '" << oat_dex_file->GetDexFileLocation() 500 << "': " << error_msg; 501 } else { 502 const char* descriptor = m->GetDeclaringClassDescriptor(); 503 const DexFile::ClassDef* class_def = 504 dex_file->FindClassDef(descriptor, ComputeModifiedUtf8Hash(descriptor)); 505 if (class_def != nullptr) { 506 uint16_t class_def_index = dex_file->GetIndexForClassDef(*class_def); 507 const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(class_def_index); 508 size_t method_index = m->GetMethodIndex(); 509 return oat_class.GetOatMethod(method_index).GetQuickCode(); 510 } 511 } 512 } 513 return nullptr; 514 } 515 516 private: 517 void AddAllOffsets() { 518 // We don't know the length of the code for each method, but we need to know where to stop 519 // when disassembling. What we do know is that a region of code will be followed by some other 520 // region, so if we keep a sorted sequence of the start of each region, we can infer the length 521 // of a piece of code by using upper_bound to find the start of the next region. 522 for (size_t i = 0; i < oat_dex_files_.size(); i++) { 523 const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i]; 524 CHECK(oat_dex_file != nullptr); 525 std::string error_msg; 526 const DexFile* const dex_file = OpenDexFile(oat_dex_file, &error_msg); 527 if (dex_file == nullptr) { 528 LOG(WARNING) << "Failed to open dex file '" << oat_dex_file->GetDexFileLocation() 529 << "': " << error_msg; 530 continue; 531 } 532 offsets_.insert(reinterpret_cast<uintptr_t>(&dex_file->GetHeader())); 533 for (size_t class_def_index = 0; 534 class_def_index < dex_file->NumClassDefs(); 535 class_def_index++) { 536 const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index); 537 const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(class_def_index); 538 const uint8_t* class_data = dex_file->GetClassData(class_def); 539 if (class_data != nullptr) { 540 ClassDataItemIterator it(*dex_file, class_data); 541 SkipAllFields(it); 542 uint32_t class_method_index = 0; 543 while (it.HasNextDirectMethod()) { 544 AddOffsets(oat_class.GetOatMethod(class_method_index++)); 545 it.Next(); 546 } 547 while (it.HasNextVirtualMethod()) { 548 AddOffsets(oat_class.GetOatMethod(class_method_index++)); 549 it.Next(); 550 } 551 } 552 } 553 } 554 555 // If the last thing in the file is code for a method, there won't be an offset for the "next" 556 // thing. Instead of having a special case in the upper_bound code, let's just add an entry 557 // for the end of the file. 558 offsets_.insert(oat_file_.Size()); 559 } 560 561 static uint32_t AlignCodeOffset(uint32_t maybe_thumb_offset) { 562 return maybe_thumb_offset & ~0x1; // TODO: Make this Thumb2 specific. 563 } 564 565 void AddOffsets(const OatFile::OatMethod& oat_method) { 566 uint32_t code_offset = oat_method.GetCodeOffset(); 567 if (oat_file_.GetOatHeader().GetInstructionSet() == kThumb2) { 568 code_offset &= ~0x1; 569 } 570 offsets_.insert(code_offset); 571 offsets_.insert(oat_method.GetMappingTableOffset()); 572 offsets_.insert(oat_method.GetVmapTableOffset()); 573 offsets_.insert(oat_method.GetGcMapOffset()); 574 } 575 576 bool DumpOatDexFile(std::ostream& os, const OatFile::OatDexFile& oat_dex_file) { 577 bool success = true; 578 bool stop_analysis = false; 579 os << "OatDexFile:\n"; 580 os << StringPrintf("location: %s\n", oat_dex_file.GetDexFileLocation().c_str()); 581 os << StringPrintf("checksum: 0x%08x\n", oat_dex_file.GetDexFileLocationChecksum()); 582 583 // Create the verifier early. 584 585 std::string error_msg; 586 const DexFile* const dex_file = OpenDexFile(&oat_dex_file, &error_msg); 587 if (dex_file == nullptr) { 588 os << "NOT FOUND: " << error_msg << "\n\n"; 589 os << std::flush; 590 return false; 591 } 592 593 VariableIndentationOutputStream vios(&os); 594 ScopedIndentation indent1(&vios); 595 for (size_t class_def_index = 0; 596 class_def_index < dex_file->NumClassDefs(); 597 class_def_index++) { 598 const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index); 599 const char* descriptor = dex_file->GetClassDescriptor(class_def); 600 601 // TODO: Support regex 602 if (DescriptorToDot(descriptor).find(options_.class_filter_) == std::string::npos) { 603 continue; 604 } 605 606 uint32_t oat_class_offset = oat_dex_file.GetOatClassOffset(class_def_index); 607 const OatFile::OatClass oat_class = oat_dex_file.GetOatClass(class_def_index); 608 os << StringPrintf("%zd: %s (offset=0x%08x) (type_idx=%d)", 609 class_def_index, descriptor, oat_class_offset, class_def.class_idx_) 610 << " (" << oat_class.GetStatus() << ")" 611 << " (" << oat_class.GetType() << ")\n"; 612 // TODO: include bitmap here if type is kOatClassSomeCompiled? 613 if (options_.list_classes_) continue; 614 if (!DumpOatClass(&vios, oat_class, *dex_file, class_def, &stop_analysis)) { 615 success = false; 616 } 617 if (stop_analysis) { 618 os << std::flush; 619 return success; 620 } 621 } 622 623 os << std::flush; 624 return success; 625 } 626 627 bool ExportDexFile(std::ostream& os, const OatFile::OatDexFile& oat_dex_file) { 628 std::string error_msg; 629 std::string dex_file_location = oat_dex_file.GetDexFileLocation(); 630 631 const DexFile* const dex_file = OpenDexFile(&oat_dex_file, &error_msg); 632 if (dex_file == nullptr) { 633 os << "Failed to open dex file '" << dex_file_location << "': " << error_msg; 634 return false; 635 } 636 size_t fsize = oat_dex_file.FileSize(); 637 638 // Some quick checks just in case 639 if (fsize == 0 || fsize < sizeof(DexFile::Header)) { 640 os << "Invalid dex file\n"; 641 return false; 642 } 643 644 // Verify output directory exists 645 if (!OS::DirectoryExists(options_.export_dex_location_)) { 646 // TODO: Extend OS::DirectoryExists if symlink support is required 647 os << options_.export_dex_location_ << " output directory not found or symlink\n"; 648 return false; 649 } 650 651 // Beautify path names 652 if (dex_file_location.size() > PATH_MAX || dex_file_location.size() <= 0) { 653 return false; 654 } 655 656 std::string dex_orig_name; 657 size_t dex_orig_pos = dex_file_location.rfind('/'); 658 if (dex_orig_pos == std::string::npos) 659 dex_orig_name = dex_file_location; 660 else 661 dex_orig_name = dex_file_location.substr(dex_orig_pos + 1); 662 663 // A more elegant approach to efficiently name user installed apps is welcome 664 if (dex_orig_name.size() == 8 && !dex_orig_name.compare("base.apk")) { 665 dex_file_location.erase(dex_orig_pos, strlen("base.apk") + 1); 666 size_t apk_orig_pos = dex_file_location.rfind('/'); 667 if (apk_orig_pos != std::string::npos) { 668 dex_orig_name = dex_file_location.substr(++apk_orig_pos); 669 } 670 } 671 672 std::string out_dex_path(options_.export_dex_location_); 673 if (out_dex_path.back() != '/') { 674 out_dex_path.append("/"); 675 } 676 out_dex_path.append(dex_orig_name); 677 out_dex_path.append("_export.dex"); 678 if (out_dex_path.length() > PATH_MAX) { 679 return false; 680 } 681 682 std::unique_ptr<File> file(OS::CreateEmptyFile(out_dex_path.c_str())); 683 if (file.get() == nullptr) { 684 os << "Failed to open output dex file " << out_dex_path; 685 return false; 686 } 687 688 if (!file->WriteFully(dex_file->Begin(), fsize)) { 689 os << "Failed to write dex file"; 690 file->Erase(); 691 return false; 692 } 693 694 if (file->FlushCloseOrErase() != 0) { 695 os << "Flush and close failed"; 696 return false; 697 } 698 699 os << StringPrintf("Dex file exported at %s (%zd bytes)\n", out_dex_path.c_str(), fsize); 700 os << std::flush; 701 702 return true; 703 } 704 705 static void SkipAllFields(ClassDataItemIterator& it) { 706 while (it.HasNextStaticField()) { 707 it.Next(); 708 } 709 while (it.HasNextInstanceField()) { 710 it.Next(); 711 } 712 } 713 714 bool DumpOatClass(VariableIndentationOutputStream* vios, 715 const OatFile::OatClass& oat_class, const DexFile& dex_file, 716 const DexFile::ClassDef& class_def, bool* stop_analysis) { 717 bool success = true; 718 bool addr_found = false; 719 const uint8_t* class_data = dex_file.GetClassData(class_def); 720 if (class_data == nullptr) { // empty class such as a marker interface? 721 vios->Stream() << std::flush; 722 return success; 723 } 724 ClassDataItemIterator it(dex_file, class_data); 725 SkipAllFields(it); 726 uint32_t class_method_index = 0; 727 while (it.HasNextDirectMethod()) { 728 if (!DumpOatMethod(vios, class_def, class_method_index, oat_class, dex_file, 729 it.GetMemberIndex(), it.GetMethodCodeItem(), 730 it.GetRawMemberAccessFlags(), &addr_found)) { 731 success = false; 732 } 733 if (addr_found) { 734 *stop_analysis = true; 735 return success; 736 } 737 class_method_index++; 738 it.Next(); 739 } 740 while (it.HasNextVirtualMethod()) { 741 if (!DumpOatMethod(vios, class_def, class_method_index, oat_class, dex_file, 742 it.GetMemberIndex(), it.GetMethodCodeItem(), 743 it.GetRawMemberAccessFlags(), &addr_found)) { 744 success = false; 745 } 746 if (addr_found) { 747 *stop_analysis = true; 748 return success; 749 } 750 class_method_index++; 751 it.Next(); 752 } 753 DCHECK(!it.HasNext()); 754 vios->Stream() << std::flush; 755 return success; 756 } 757 758 static constexpr uint32_t kPrologueBytes = 16; 759 760 // When this was picked, the largest arm method was 55,256 bytes and arm64 was 50,412 bytes. 761 static constexpr uint32_t kMaxCodeSize = 100 * 1000; 762 763 bool DumpOatMethod(VariableIndentationOutputStream* vios, 764 const DexFile::ClassDef& class_def, 765 uint32_t class_method_index, 766 const OatFile::OatClass& oat_class, const DexFile& dex_file, 767 uint32_t dex_method_idx, const DexFile::CodeItem* code_item, 768 uint32_t method_access_flags, bool* addr_found) { 769 bool success = true; 770 771 // TODO: Support regex 772 std::string method_name = dex_file.GetMethodName(dex_file.GetMethodId(dex_method_idx)); 773 if (method_name.find(options_.method_filter_) == std::string::npos) { 774 return success; 775 } 776 777 std::string pretty_method = PrettyMethod(dex_method_idx, dex_file, true); 778 vios->Stream() << StringPrintf("%d: %s (dex_method_idx=%d)\n", 779 class_method_index, pretty_method.c_str(), 780 dex_method_idx); 781 if (options_.list_methods_) return success; 782 783 uint32_t oat_method_offsets_offset = oat_class.GetOatMethodOffsetsOffset(class_method_index); 784 const OatMethodOffsets* oat_method_offsets = oat_class.GetOatMethodOffsets(class_method_index); 785 const OatFile::OatMethod oat_method = oat_class.GetOatMethod(class_method_index); 786 uint32_t code_offset = oat_method.GetCodeOffset(); 787 uint32_t code_size = oat_method.GetQuickCodeSize(); 788 if (resolved_addr2instr_ != 0) { 789 if (resolved_addr2instr_ > code_offset + code_size) { 790 return success; 791 } else { 792 *addr_found = true; // stop analyzing file at next iteration 793 } 794 } 795 796 // Everything below is indented at least once. 797 ScopedIndentation indent1(vios); 798 799 { 800 vios->Stream() << "DEX CODE:\n"; 801 ScopedIndentation indent2(vios); 802 DumpDexCode(vios->Stream(), dex_file, code_item); 803 } 804 805 std::unique_ptr<StackHandleScope<1>> hs; 806 std::unique_ptr<verifier::MethodVerifier> verifier; 807 if (Runtime::Current() != nullptr) { 808 // We need to have the handle scope stay live until after the verifier since the verifier has 809 // a handle to the dex cache from hs. 810 hs.reset(new StackHandleScope<1>(Thread::Current())); 811 vios->Stream() << "VERIFIER TYPE ANALYSIS:\n"; 812 ScopedIndentation indent2(vios); 813 verifier.reset(DumpVerifier(vios, hs.get(), 814 dex_method_idx, &dex_file, class_def, code_item, 815 method_access_flags)); 816 } 817 { 818 vios->Stream() << "OatMethodOffsets "; 819 if (options_.absolute_addresses_) { 820 vios->Stream() << StringPrintf("%p ", oat_method_offsets); 821 } 822 vios->Stream() << StringPrintf("(offset=0x%08x)\n", oat_method_offsets_offset); 823 if (oat_method_offsets_offset > oat_file_.Size()) { 824 vios->Stream() << StringPrintf( 825 "WARNING: oat method offsets offset 0x%08x is past end of file 0x%08zx.\n", 826 oat_method_offsets_offset, oat_file_.Size()); 827 // If we can't read OatMethodOffsets, the rest of the data is dangerous to read. 828 vios->Stream() << std::flush; 829 return false; 830 } 831 832 ScopedIndentation indent2(vios); 833 vios->Stream() << StringPrintf("code_offset: 0x%08x ", code_offset); 834 uint32_t aligned_code_begin = AlignCodeOffset(oat_method.GetCodeOffset()); 835 if (aligned_code_begin > oat_file_.Size()) { 836 vios->Stream() << StringPrintf("WARNING: " 837 "code offset 0x%08x is past end of file 0x%08zx.\n", 838 aligned_code_begin, oat_file_.Size()); 839 success = false; 840 } 841 vios->Stream() << "\n"; 842 843 vios->Stream() << "gc_map: "; 844 if (options_.absolute_addresses_) { 845 vios->Stream() << StringPrintf("%p ", oat_method.GetGcMap()); 846 } 847 uint32_t gc_map_offset = oat_method.GetGcMapOffset(); 848 vios->Stream() << StringPrintf("(offset=0x%08x)\n", gc_map_offset); 849 if (gc_map_offset > oat_file_.Size()) { 850 vios->Stream() << StringPrintf("WARNING: " 851 "gc map table offset 0x%08x is past end of file 0x%08zx.\n", 852 gc_map_offset, oat_file_.Size()); 853 success = false; 854 } else if (options_.dump_raw_gc_map_) { 855 ScopedIndentation indent3(vios); 856 DumpGcMap(vios->Stream(), oat_method, code_item); 857 } 858 } 859 { 860 vios->Stream() << "OatQuickMethodHeader "; 861 uint32_t method_header_offset = oat_method.GetOatQuickMethodHeaderOffset(); 862 const OatQuickMethodHeader* method_header = oat_method.GetOatQuickMethodHeader(); 863 864 if (options_.absolute_addresses_) { 865 vios->Stream() << StringPrintf("%p ", method_header); 866 } 867 vios->Stream() << StringPrintf("(offset=0x%08x)\n", method_header_offset); 868 if (method_header_offset > oat_file_.Size()) { 869 vios->Stream() << StringPrintf( 870 "WARNING: oat quick method header offset 0x%08x is past end of file 0x%08zx.\n", 871 method_header_offset, oat_file_.Size()); 872 // If we can't read the OatQuickMethodHeader, the rest of the data is dangerous to read. 873 vios->Stream() << std::flush; 874 return false; 875 } 876 877 ScopedIndentation indent2(vios); 878 vios->Stream() << "mapping_table: "; 879 if (options_.absolute_addresses_) { 880 vios->Stream() << StringPrintf("%p ", oat_method.GetMappingTable()); 881 } 882 uint32_t mapping_table_offset = oat_method.GetMappingTableOffset(); 883 vios->Stream() << StringPrintf("(offset=0x%08x)\n", oat_method.GetMappingTableOffset()); 884 if (mapping_table_offset > oat_file_.Size()) { 885 vios->Stream() << StringPrintf("WARNING: " 886 "mapping table offset 0x%08x is past end of file 0x%08zx. " 887 "mapping table offset was loaded from offset 0x%08x.\n", 888 mapping_table_offset, oat_file_.Size(), 889 oat_method.GetMappingTableOffsetOffset()); 890 success = false; 891 } else if (options_.dump_raw_mapping_table_) { 892 ScopedIndentation indent3(vios); 893 DumpMappingTable(vios, oat_method); 894 } 895 896 vios->Stream() << "vmap_table: "; 897 if (options_.absolute_addresses_) { 898 vios->Stream() << StringPrintf("%p ", oat_method.GetVmapTable()); 899 } 900 uint32_t vmap_table_offset = oat_method.GetVmapTableOffset(); 901 vios->Stream() << StringPrintf("(offset=0x%08x)\n", vmap_table_offset); 902 if (vmap_table_offset > oat_file_.Size()) { 903 vios->Stream() << StringPrintf("WARNING: " 904 "vmap table offset 0x%08x is past end of file 0x%08zx. " 905 "vmap table offset was loaded from offset 0x%08x.\n", 906 vmap_table_offset, oat_file_.Size(), 907 oat_method.GetVmapTableOffsetOffset()); 908 success = false; 909 } else if (options_.dump_vmap_) { 910 DumpVmapData(vios, oat_method, code_item); 911 } 912 } 913 { 914 vios->Stream() << "QuickMethodFrameInfo\n"; 915 916 ScopedIndentation indent2(vios); 917 vios->Stream() 918 << StringPrintf("frame_size_in_bytes: %zd\n", oat_method.GetFrameSizeInBytes()); 919 vios->Stream() << StringPrintf("core_spill_mask: 0x%08x ", oat_method.GetCoreSpillMask()); 920 DumpSpillMask(vios->Stream(), oat_method.GetCoreSpillMask(), false); 921 vios->Stream() << "\n"; 922 vios->Stream() << StringPrintf("fp_spill_mask: 0x%08x ", oat_method.GetFpSpillMask()); 923 DumpSpillMask(vios->Stream(), oat_method.GetFpSpillMask(), true); 924 vios->Stream() << "\n"; 925 } 926 { 927 // Based on spill masks from QuickMethodFrameInfo so placed 928 // after it is dumped, but useful for understanding quick 929 // code, so dumped here. 930 ScopedIndentation indent2(vios); 931 DumpVregLocations(vios->Stream(), oat_method, code_item); 932 } 933 { 934 vios->Stream() << "CODE: "; 935 uint32_t code_size_offset = oat_method.GetQuickCodeSizeOffset(); 936 if (code_size_offset > oat_file_.Size()) { 937 ScopedIndentation indent2(vios); 938 vios->Stream() << StringPrintf("WARNING: " 939 "code size offset 0x%08x is past end of file 0x%08zx.", 940 code_size_offset, oat_file_.Size()); 941 success = false; 942 } else { 943 const void* code = oat_method.GetQuickCode(); 944 uint32_t aligned_code_begin = AlignCodeOffset(code_offset); 945 uint64_t aligned_code_end = aligned_code_begin + code_size; 946 947 if (options_.absolute_addresses_) { 948 vios->Stream() << StringPrintf("%p ", code); 949 } 950 vios->Stream() << StringPrintf("(code_offset=0x%08x size_offset=0x%08x size=%u)%s\n", 951 code_offset, 952 code_size_offset, 953 code_size, 954 code != nullptr ? "..." : ""); 955 956 ScopedIndentation indent2(vios); 957 if (aligned_code_begin > oat_file_.Size()) { 958 vios->Stream() << StringPrintf("WARNING: " 959 "start of code at 0x%08x is past end of file 0x%08zx.", 960 aligned_code_begin, oat_file_.Size()); 961 success = false; 962 } else if (aligned_code_end > oat_file_.Size()) { 963 vios->Stream() << StringPrintf( 964 "WARNING: " 965 "end of code at 0x%08" PRIx64 " is past end of file 0x%08zx. " 966 "code size is 0x%08x loaded from offset 0x%08x.\n", 967 aligned_code_end, oat_file_.Size(), 968 code_size, code_size_offset); 969 success = false; 970 if (options_.disassemble_code_) { 971 if (code_size_offset + kPrologueBytes <= oat_file_.Size()) { 972 DumpCode(vios, verifier.get(), oat_method, code_item, true, kPrologueBytes); 973 } 974 } 975 } else if (code_size > kMaxCodeSize) { 976 vios->Stream() << StringPrintf( 977 "WARNING: " 978 "code size %d is bigger than max expected threshold of %d. " 979 "code size is 0x%08x loaded from offset 0x%08x.\n", 980 code_size, kMaxCodeSize, 981 code_size, code_size_offset); 982 success = false; 983 if (options_.disassemble_code_) { 984 if (code_size_offset + kPrologueBytes <= oat_file_.Size()) { 985 DumpCode(vios, verifier.get(), oat_method, code_item, true, kPrologueBytes); 986 } 987 } 988 } else if (options_.disassemble_code_) { 989 DumpCode(vios, verifier.get(), oat_method, code_item, !success, 0); 990 } 991 } 992 } 993 vios->Stream() << std::flush; 994 return success; 995 } 996 997 void DumpSpillMask(std::ostream& os, uint32_t spill_mask, bool is_float) { 998 if (spill_mask == 0) { 999 return; 1000 } 1001 os << "("; 1002 for (size_t i = 0; i < 32; i++) { 1003 if ((spill_mask & (1 << i)) != 0) { 1004 if (is_float) { 1005 os << "fr" << i; 1006 } else { 1007 os << "r" << i; 1008 } 1009 spill_mask ^= 1 << i; // clear bit 1010 if (spill_mask != 0) { 1011 os << ", "; 1012 } else { 1013 break; 1014 } 1015 } 1016 } 1017 os << ")"; 1018 } 1019 1020 // Display data stored at the the vmap offset of an oat method. 1021 void DumpVmapData(VariableIndentationOutputStream* vios, 1022 const OatFile::OatMethod& oat_method, 1023 const DexFile::CodeItem* code_item) { 1024 if (IsMethodGeneratedByOptimizingCompiler(oat_method, code_item)) { 1025 // The optimizing compiler outputs its CodeInfo data in the vmap table. 1026 const void* raw_code_info = oat_method.GetVmapTable(); 1027 if (raw_code_info != nullptr) { 1028 CodeInfo code_info(raw_code_info); 1029 DCHECK(code_item != nullptr); 1030 ScopedIndentation indent1(vios); 1031 DumpCodeInfo(vios, code_info, oat_method, *code_item); 1032 } 1033 } else if (IsMethodGeneratedByDexToDexCompiler(oat_method, code_item)) { 1034 // We don't encode the size in the table, so just emit that we have quickened 1035 // information. 1036 ScopedIndentation indent(vios); 1037 vios->Stream() << "quickened data\n"; 1038 } else { 1039 // Otherwise, display the vmap table. 1040 const uint8_t* raw_table = oat_method.GetVmapTable(); 1041 if (raw_table != nullptr) { 1042 VmapTable vmap_table(raw_table); 1043 DumpVmapTable(vios->Stream(), oat_method, vmap_table); 1044 } 1045 } 1046 } 1047 1048 // Display a CodeInfo object emitted by the optimizing compiler. 1049 void DumpCodeInfo(VariableIndentationOutputStream* vios, 1050 const CodeInfo& code_info, 1051 const OatFile::OatMethod& oat_method, 1052 const DexFile::CodeItem& code_item) { 1053 code_info.Dump(vios, 1054 oat_method.GetCodeOffset(), 1055 code_item.registers_size_, 1056 options_.dump_code_info_stack_maps_); 1057 } 1058 1059 // Display a vmap table. 1060 void DumpVmapTable(std::ostream& os, 1061 const OatFile::OatMethod& oat_method, 1062 const VmapTable& vmap_table) { 1063 bool first = true; 1064 bool processing_fp = false; 1065 uint32_t spill_mask = oat_method.GetCoreSpillMask(); 1066 for (size_t i = 0; i < vmap_table.Size(); i++) { 1067 uint16_t dex_reg = vmap_table[i]; 1068 uint32_t cpu_reg = vmap_table.ComputeRegister(spill_mask, i, 1069 processing_fp ? kFloatVReg : kIntVReg); 1070 os << (first ? "v" : ", v") << dex_reg; 1071 if (!processing_fp) { 1072 os << "/r" << cpu_reg; 1073 } else { 1074 os << "/fr" << cpu_reg; 1075 } 1076 first = false; 1077 if (!processing_fp && dex_reg == 0xFFFF) { 1078 processing_fp = true; 1079 spill_mask = oat_method.GetFpSpillMask(); 1080 } 1081 } 1082 os << "\n"; 1083 } 1084 1085 void DumpVregLocations(std::ostream& os, const OatFile::OatMethod& oat_method, 1086 const DexFile::CodeItem* code_item) { 1087 if (code_item != nullptr) { 1088 size_t num_locals_ins = code_item->registers_size_; 1089 size_t num_ins = code_item->ins_size_; 1090 size_t num_locals = num_locals_ins - num_ins; 1091 size_t num_outs = code_item->outs_size_; 1092 1093 os << "vr_stack_locations:"; 1094 for (size_t reg = 0; reg <= num_locals_ins; reg++) { 1095 // For readability, delimit the different kinds of VRs. 1096 if (reg == num_locals_ins) { 1097 os << "\n\tmethod*:"; 1098 } else if (reg == num_locals && num_ins > 0) { 1099 os << "\n\tins:"; 1100 } else if (reg == 0 && num_locals > 0) { 1101 os << "\n\tlocals:"; 1102 } 1103 1104 uint32_t offset = StackVisitor::GetVRegOffsetFromQuickCode( 1105 code_item, 1106 oat_method.GetCoreSpillMask(), 1107 oat_method.GetFpSpillMask(), 1108 oat_method.GetFrameSizeInBytes(), 1109 reg, 1110 GetInstructionSet()); 1111 os << " v" << reg << "[sp + #" << offset << "]"; 1112 } 1113 1114 for (size_t out_reg = 0; out_reg < num_outs; out_reg++) { 1115 if (out_reg == 0) { 1116 os << "\n\touts:"; 1117 } 1118 1119 uint32_t offset = StackVisitor::GetOutVROffset(out_reg, GetInstructionSet()); 1120 os << " v" << out_reg << "[sp + #" << offset << "]"; 1121 } 1122 1123 os << "\n"; 1124 } 1125 } 1126 1127 void DescribeVReg(std::ostream& os, const OatFile::OatMethod& oat_method, 1128 const DexFile::CodeItem* code_item, size_t reg, VRegKind kind) { 1129 const uint8_t* raw_table = oat_method.GetVmapTable(); 1130 if (raw_table != nullptr) { 1131 const VmapTable vmap_table(raw_table); 1132 uint32_t vmap_offset; 1133 if (vmap_table.IsInContext(reg, kind, &vmap_offset)) { 1134 bool is_float = (kind == kFloatVReg) || (kind == kDoubleLoVReg) || (kind == kDoubleHiVReg); 1135 uint32_t spill_mask = is_float ? oat_method.GetFpSpillMask() 1136 : oat_method.GetCoreSpillMask(); 1137 os << (is_float ? "fr" : "r") << vmap_table.ComputeRegister(spill_mask, vmap_offset, kind); 1138 } else { 1139 uint32_t offset = StackVisitor::GetVRegOffsetFromQuickCode( 1140 code_item, 1141 oat_method.GetCoreSpillMask(), 1142 oat_method.GetFpSpillMask(), 1143 oat_method.GetFrameSizeInBytes(), 1144 reg, 1145 GetInstructionSet()); 1146 os << "[sp + #" << offset << "]"; 1147 } 1148 } 1149 } 1150 1151 void DumpGcMapRegisters(std::ostream& os, const OatFile::OatMethod& oat_method, 1152 const DexFile::CodeItem* code_item, 1153 size_t num_regs, const uint8_t* reg_bitmap) { 1154 bool first = true; 1155 for (size_t reg = 0; reg < num_regs; reg++) { 1156 if (((reg_bitmap[reg / 8] >> (reg % 8)) & 0x01) != 0) { 1157 if (first) { 1158 os << " v" << reg << " ("; 1159 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 1160 os << ")"; 1161 first = false; 1162 } else { 1163 os << ", v" << reg << " ("; 1164 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 1165 os << ")"; 1166 } 1167 } 1168 } 1169 if (first) { 1170 os << "No registers in GC map\n"; 1171 } else { 1172 os << "\n"; 1173 } 1174 } 1175 void DumpGcMap(std::ostream& os, const OatFile::OatMethod& oat_method, 1176 const DexFile::CodeItem* code_item) { 1177 const uint8_t* gc_map_raw = oat_method.GetGcMap(); 1178 if (gc_map_raw == nullptr) { 1179 return; // No GC map. 1180 } 1181 const void* quick_code = oat_method.GetQuickCode(); 1182 NativePcOffsetToReferenceMap map(gc_map_raw); 1183 for (size_t entry = 0; entry < map.NumEntries(); entry++) { 1184 const uint8_t* native_pc = reinterpret_cast<const uint8_t*>(quick_code) + 1185 map.GetNativePcOffset(entry); 1186 os << StringPrintf("%p", native_pc); 1187 DumpGcMapRegisters(os, oat_method, code_item, map.RegWidth() * 8, map.GetBitMap(entry)); 1188 } 1189 } 1190 1191 void DumpMappingTable(VariableIndentationOutputStream* vios, 1192 const OatFile::OatMethod& oat_method) { 1193 const void* quick_code = oat_method.GetQuickCode(); 1194 if (quick_code == nullptr) { 1195 return; 1196 } 1197 MappingTable table(oat_method.GetMappingTable()); 1198 if (table.TotalSize() != 0) { 1199 if (table.PcToDexSize() != 0) { 1200 typedef MappingTable::PcToDexIterator It; 1201 vios->Stream() << "suspend point mappings {\n"; 1202 for (It cur = table.PcToDexBegin(), end = table.PcToDexEnd(); cur != end; ++cur) { 1203 ScopedIndentation indent1(vios); 1204 vios->Stream() << StringPrintf("0x%04x -> 0x%04x\n", cur.NativePcOffset(), cur.DexPc()); 1205 } 1206 vios->Stream() << "}\n"; 1207 } 1208 if (table.DexToPcSize() != 0) { 1209 typedef MappingTable::DexToPcIterator It; 1210 vios->Stream() << "catch entry mappings {\n"; 1211 for (It cur = table.DexToPcBegin(), end = table.DexToPcEnd(); cur != end; ++cur) { 1212 ScopedIndentation indent1(vios); 1213 vios->Stream() << StringPrintf("0x%04x -> 0x%04x\n", cur.NativePcOffset(), cur.DexPc()); 1214 } 1215 vios->Stream() << "}\n"; 1216 } 1217 } 1218 } 1219 1220 uint32_t DumpInformationAtOffset(VariableIndentationOutputStream* vios, 1221 const OatFile::OatMethod& oat_method, 1222 const DexFile::CodeItem* code_item, 1223 size_t offset, 1224 bool suspend_point_mapping) { 1225 if (IsMethodGeneratedByOptimizingCompiler(oat_method, code_item)) { 1226 if (suspend_point_mapping) { 1227 ScopedIndentation indent1(vios); 1228 DumpDexRegisterMapAtOffset(vios, oat_method, code_item, offset); 1229 } 1230 // The return value is not used in the case of a method compiled 1231 // with the optimizing compiler. 1232 return DexFile::kDexNoIndex; 1233 } else { 1234 return DumpMappingAtOffset(vios->Stream(), oat_method, offset, suspend_point_mapping); 1235 } 1236 } 1237 1238 uint32_t DumpMappingAtOffset(std::ostream& os, const OatFile::OatMethod& oat_method, 1239 size_t offset, bool suspend_point_mapping) { 1240 MappingTable table(oat_method.GetMappingTable()); 1241 if (suspend_point_mapping && table.PcToDexSize() > 0) { 1242 typedef MappingTable::PcToDexIterator It; 1243 for (It cur = table.PcToDexBegin(), end = table.PcToDexEnd(); cur != end; ++cur) { 1244 if (offset == cur.NativePcOffset()) { 1245 os << StringPrintf("suspend point dex PC: 0x%04x\n", cur.DexPc()); 1246 return cur.DexPc(); 1247 } 1248 } 1249 } else if (!suspend_point_mapping && table.DexToPcSize() > 0) { 1250 typedef MappingTable::DexToPcIterator It; 1251 for (It cur = table.DexToPcBegin(), end = table.DexToPcEnd(); cur != end; ++cur) { 1252 if (offset == cur.NativePcOffset()) { 1253 os << StringPrintf("catch entry dex PC: 0x%04x\n", cur.DexPc()); 1254 return cur.DexPc(); 1255 } 1256 } 1257 } 1258 return DexFile::kDexNoIndex; 1259 } 1260 1261 void DumpGcMapAtNativePcOffset(std::ostream& os, const OatFile::OatMethod& oat_method, 1262 const DexFile::CodeItem* code_item, size_t native_pc_offset) { 1263 const uint8_t* gc_map_raw = oat_method.GetGcMap(); 1264 if (gc_map_raw != nullptr) { 1265 NativePcOffsetToReferenceMap map(gc_map_raw); 1266 if (map.HasEntry(native_pc_offset)) { 1267 size_t num_regs = map.RegWidth() * 8; 1268 const uint8_t* reg_bitmap = map.FindBitMap(native_pc_offset); 1269 bool first = true; 1270 for (size_t reg = 0; reg < num_regs; reg++) { 1271 if (((reg_bitmap[reg / 8] >> (reg % 8)) & 0x01) != 0) { 1272 if (first) { 1273 os << "GC map objects: v" << reg << " ("; 1274 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 1275 os << ")"; 1276 first = false; 1277 } else { 1278 os << ", v" << reg << " ("; 1279 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 1280 os << ")"; 1281 } 1282 } 1283 } 1284 if (!first) { 1285 os << "\n"; 1286 } 1287 } 1288 } 1289 } 1290 1291 void DumpVRegsAtDexPc(std::ostream& os, verifier::MethodVerifier* verifier, 1292 const OatFile::OatMethod& oat_method, 1293 const DexFile::CodeItem* code_item, uint32_t dex_pc) { 1294 DCHECK(verifier != nullptr); 1295 std::vector<int32_t> kinds = verifier->DescribeVRegs(dex_pc); 1296 bool first = true; 1297 for (size_t reg = 0; reg < code_item->registers_size_; reg++) { 1298 VRegKind kind = static_cast<VRegKind>(kinds.at(reg * 2)); 1299 if (kind != kUndefined) { 1300 if (first) { 1301 os << "VRegs: v"; 1302 first = false; 1303 } else { 1304 os << ", v"; 1305 } 1306 os << reg << " ("; 1307 switch (kind) { 1308 case kImpreciseConstant: 1309 os << "Imprecise Constant: " << kinds.at((reg * 2) + 1) << ", "; 1310 DescribeVReg(os, oat_method, code_item, reg, kind); 1311 break; 1312 case kConstant: 1313 os << "Constant: " << kinds.at((reg * 2) + 1); 1314 break; 1315 default: 1316 DescribeVReg(os, oat_method, code_item, reg, kind); 1317 break; 1318 } 1319 os << ")"; 1320 } 1321 } 1322 if (!first) { 1323 os << "\n"; 1324 } 1325 } 1326 1327 1328 void DumpDexCode(std::ostream& os, const DexFile& dex_file, const DexFile::CodeItem* code_item) { 1329 if (code_item != nullptr) { 1330 size_t i = 0; 1331 while (i < code_item->insns_size_in_code_units_) { 1332 const Instruction* instruction = Instruction::At(&code_item->insns_[i]); 1333 os << StringPrintf("0x%04zx: ", i) << instruction->DumpHexLE(5) 1334 << StringPrintf("\t| %s\n", instruction->DumpString(&dex_file).c_str()); 1335 i += instruction->SizeInCodeUnits(); 1336 } 1337 } 1338 } 1339 1340 // Has `oat_method` -- corresponding to the Dex `code_item` -- been compiled by 1341 // the optimizing compiler? 1342 static bool IsMethodGeneratedByOptimizingCompiler(const OatFile::OatMethod& oat_method, 1343 const DexFile::CodeItem* code_item) { 1344 // If the native GC map is null and the Dex `code_item` is not 1345 // null, then this method has been compiled with the optimizing 1346 // compiler. 1347 return oat_method.GetQuickCode() != nullptr && 1348 oat_method.GetGcMap() == nullptr && 1349 code_item != nullptr; 1350 } 1351 1352 // Has `oat_method` -- corresponding to the Dex `code_item` -- been compiled by 1353 // the dextodex compiler? 1354 static bool IsMethodGeneratedByDexToDexCompiler(const OatFile::OatMethod& oat_method, 1355 const DexFile::CodeItem* code_item) { 1356 // If the quick code is null, the Dex `code_item` is not 1357 // null, and the vmap table is not null, then this method has been compiled 1358 // with the dextodex compiler. 1359 return oat_method.GetQuickCode() == nullptr && 1360 oat_method.GetVmapTable() != nullptr && 1361 code_item != nullptr; 1362 } 1363 1364 void DumpDexRegisterMapAtOffset(VariableIndentationOutputStream* vios, 1365 const OatFile::OatMethod& oat_method, 1366 const DexFile::CodeItem* code_item, 1367 size_t offset) { 1368 // This method is only relevant for oat methods compiled with the 1369 // optimizing compiler. 1370 DCHECK(IsMethodGeneratedByOptimizingCompiler(oat_method, code_item)); 1371 1372 // The optimizing compiler outputs its CodeInfo data in the vmap table. 1373 const void* raw_code_info = oat_method.GetVmapTable(); 1374 if (raw_code_info != nullptr) { 1375 CodeInfo code_info(raw_code_info); 1376 StackMapEncoding encoding = code_info.ExtractEncoding(); 1377 StackMap stack_map = code_info.GetStackMapForNativePcOffset(offset, encoding); 1378 if (stack_map.IsValid()) { 1379 stack_map.Dump(vios, code_info, encoding, oat_method.GetCodeOffset(), 1380 code_item->registers_size_); 1381 } 1382 } 1383 } 1384 1385 verifier::MethodVerifier* DumpVerifier(VariableIndentationOutputStream* vios, 1386 StackHandleScope<1>* hs, 1387 uint32_t dex_method_idx, 1388 const DexFile* dex_file, 1389 const DexFile::ClassDef& class_def, 1390 const DexFile::CodeItem* code_item, 1391 uint32_t method_access_flags) { 1392 if ((method_access_flags & kAccNative) == 0) { 1393 ScopedObjectAccess soa(Thread::Current()); 1394 Runtime* const runtime = Runtime::Current(); 1395 Handle<mirror::DexCache> dex_cache( 1396 hs->NewHandle(runtime->GetClassLinker()->RegisterDexFile(*dex_file, 1397 runtime->GetLinearAlloc()))); 1398 DCHECK(options_.class_loader_ != nullptr); 1399 return verifier::MethodVerifier::VerifyMethodAndDump( 1400 soa.Self(), vios, dex_method_idx, dex_file, dex_cache, *options_.class_loader_, 1401 &class_def, code_item, nullptr, method_access_flags); 1402 } 1403 1404 return nullptr; 1405 } 1406 1407 void DumpCode(VariableIndentationOutputStream* vios, 1408 verifier::MethodVerifier* verifier, 1409 const OatFile::OatMethod& oat_method, const DexFile::CodeItem* code_item, 1410 bool bad_input, size_t code_size) { 1411 const void* quick_code = oat_method.GetQuickCode(); 1412 1413 if (code_size == 0) { 1414 code_size = oat_method.GetQuickCodeSize(); 1415 } 1416 if (code_size == 0 || quick_code == nullptr) { 1417 vios->Stream() << "NO CODE!\n"; 1418 return; 1419 } else { 1420 const uint8_t* quick_native_pc = reinterpret_cast<const uint8_t*>(quick_code); 1421 size_t offset = 0; 1422 while (offset < code_size) { 1423 if (!bad_input) { 1424 DumpInformationAtOffset(vios, oat_method, code_item, offset, false); 1425 } 1426 offset += disassembler_->Dump(vios->Stream(), quick_native_pc + offset); 1427 if (!bad_input) { 1428 uint32_t dex_pc = 1429 DumpInformationAtOffset(vios, oat_method, code_item, offset, true); 1430 if (dex_pc != DexFile::kDexNoIndex) { 1431 DumpGcMapAtNativePcOffset(vios->Stream(), oat_method, code_item, offset); 1432 if (verifier != nullptr) { 1433 DumpVRegsAtDexPc(vios->Stream(), verifier, oat_method, code_item, dex_pc); 1434 } 1435 } 1436 } 1437 } 1438 } 1439 } 1440 1441 const OatFile& oat_file_; 1442 const std::vector<const OatFile::OatDexFile*> oat_dex_files_; 1443 const OatDumperOptions& options_; 1444 uint32_t resolved_addr2instr_; 1445 InstructionSet instruction_set_; 1446 std::set<uintptr_t> offsets_; 1447 Disassembler* disassembler_; 1448}; 1449 1450class ImageDumper { 1451 public: 1452 ImageDumper(std::ostream* os, 1453 gc::space::ImageSpace& image_space, 1454 const ImageHeader& image_header, 1455 OatDumperOptions* oat_dumper_options) 1456 : os_(os), 1457 vios_(os), 1458 indent1_(&vios_), 1459 image_space_(image_space), 1460 image_header_(image_header), 1461 oat_dumper_options_(oat_dumper_options) {} 1462 1463 bool Dump() SHARED_REQUIRES(Locks::mutator_lock_) { 1464 std::ostream& os = *os_; 1465 std::ostream& indent_os = vios_.Stream(); 1466 1467 os << "MAGIC: " << image_header_.GetMagic() << "\n\n"; 1468 1469 os << "IMAGE LOCATION: " << image_space_.GetImageLocation() << "\n\n"; 1470 1471 os << "IMAGE BEGIN: " << reinterpret_cast<void*>(image_header_.GetImageBegin()) << "\n\n"; 1472 1473 os << "IMAGE SIZE: " << image_header_.GetImageSize() << "\n\n"; 1474 1475 for (size_t i = 0; i < ImageHeader::kSectionCount; ++i) { 1476 auto section = static_cast<ImageHeader::ImageSections>(i); 1477 os << "IMAGE SECTION " << section << ": " << image_header_.GetImageSection(section) << "\n\n"; 1478 } 1479 1480 os << "OAT CHECKSUM: " << StringPrintf("0x%08x\n\n", image_header_.GetOatChecksum()); 1481 1482 os << "OAT FILE BEGIN:" << reinterpret_cast<void*>(image_header_.GetOatFileBegin()) << "\n\n"; 1483 1484 os << "OAT DATA BEGIN:" << reinterpret_cast<void*>(image_header_.GetOatDataBegin()) << "\n\n"; 1485 1486 os << "OAT DATA END:" << reinterpret_cast<void*>(image_header_.GetOatDataEnd()) << "\n\n"; 1487 1488 os << "OAT FILE END:" << reinterpret_cast<void*>(image_header_.GetOatFileEnd()) << "\n\n"; 1489 1490 os << "PATCH DELTA:" << image_header_.GetPatchDelta() << "\n\n"; 1491 1492 os << "COMPILE PIC: " << (image_header_.CompilePic() ? "yes" : "no") << "\n\n"; 1493 1494 { 1495 os << "ROOTS: " << reinterpret_cast<void*>(image_header_.GetImageRoots()) << "\n"; 1496 static_assert(arraysize(image_roots_descriptions_) == 1497 static_cast<size_t>(ImageHeader::kImageRootsMax), "sizes must match"); 1498 for (int i = 0; i < ImageHeader::kImageRootsMax; i++) { 1499 ImageHeader::ImageRoot image_root = static_cast<ImageHeader::ImageRoot>(i); 1500 const char* image_root_description = image_roots_descriptions_[i]; 1501 mirror::Object* image_root_object = image_header_.GetImageRoot(image_root); 1502 indent_os << StringPrintf("%s: %p\n", image_root_description, image_root_object); 1503 if (image_root_object->IsObjectArray()) { 1504 mirror::ObjectArray<mirror::Object>* image_root_object_array 1505 = image_root_object->AsObjectArray<mirror::Object>(); 1506 ScopedIndentation indent2(&vios_); 1507 for (int j = 0; j < image_root_object_array->GetLength(); j++) { 1508 mirror::Object* value = image_root_object_array->Get(j); 1509 size_t run = 0; 1510 for (int32_t k = j + 1; k < image_root_object_array->GetLength(); k++) { 1511 if (value == image_root_object_array->Get(k)) { 1512 run++; 1513 } else { 1514 break; 1515 } 1516 } 1517 if (run == 0) { 1518 indent_os << StringPrintf("%d: ", j); 1519 } else { 1520 indent_os << StringPrintf("%d to %zd: ", j, j + run); 1521 j = j + run; 1522 } 1523 if (value != nullptr) { 1524 PrettyObjectValue(indent_os, value->GetClass(), value); 1525 } else { 1526 indent_os << j << ": null\n"; 1527 } 1528 } 1529 } 1530 } 1531 } 1532 1533 { 1534 os << "METHOD ROOTS\n"; 1535 static_assert(arraysize(image_methods_descriptions_) == 1536 static_cast<size_t>(ImageHeader::kImageMethodsCount), "sizes must match"); 1537 for (int i = 0; i < ImageHeader::kImageMethodsCount; i++) { 1538 auto image_root = static_cast<ImageHeader::ImageMethod>(i); 1539 const char* description = image_methods_descriptions_[i]; 1540 auto* image_method = image_header_.GetImageMethod(image_root); 1541 indent_os << StringPrintf("%s: %p\n", description, image_method); 1542 } 1543 } 1544 os << "\n"; 1545 1546 Runtime* const runtime = Runtime::Current(); 1547 ClassLinker* class_linker = runtime->GetClassLinker(); 1548 std::string image_filename = image_space_.GetImageFilename(); 1549 std::string oat_location = ImageHeader::GetOatLocationFromImageLocation(image_filename); 1550 os << "OAT LOCATION: " << oat_location; 1551 os << "\n"; 1552 std::string error_msg; 1553 const OatFile* oat_file = image_space_.GetOatFile(); 1554 if (oat_file == nullptr) { 1555 oat_file = runtime->GetOatFileManager().FindOpenedOatFileFromOatLocation(oat_location); 1556 } 1557 if (oat_file == nullptr) { 1558 oat_file = OatFile::Open(oat_location, 1559 oat_location, 1560 nullptr, 1561 nullptr, 1562 false, 1563 /*low_4gb*/false, 1564 nullptr, 1565 &error_msg); 1566 } 1567 if (oat_file == nullptr) { 1568 os << "OAT FILE NOT FOUND: " << error_msg << "\n"; 1569 return EXIT_FAILURE; 1570 } 1571 os << "\n"; 1572 1573 stats_.oat_file_bytes = oat_file->Size(); 1574 1575 oat_dumper_.reset(new OatDumper(*oat_file, *oat_dumper_options_)); 1576 1577 for (const OatFile::OatDexFile* oat_dex_file : oat_file->GetOatDexFiles()) { 1578 CHECK(oat_dex_file != nullptr); 1579 stats_.oat_dex_file_sizes.push_back(std::make_pair(oat_dex_file->GetDexFileLocation(), 1580 oat_dex_file->FileSize())); 1581 } 1582 1583 os << "OBJECTS:\n" << std::flush; 1584 1585 // Loop through the image space and dump its objects. 1586 gc::Heap* heap = runtime->GetHeap(); 1587 Thread* self = Thread::Current(); 1588 { 1589 { 1590 WriterMutexLock mu(self, *Locks::heap_bitmap_lock_); 1591 heap->FlushAllocStack(); 1592 } 1593 // Since FlushAllocStack() above resets the (active) allocation 1594 // stack. Need to revoke the thread-local allocation stacks that 1595 // point into it. 1596 ScopedThreadSuspension sts(self, kNative); 1597 ScopedSuspendAll ssa(__FUNCTION__); 1598 heap->RevokeAllThreadLocalAllocationStacks(self); 1599 } 1600 { 1601 // Mark dex caches. 1602 dex_caches_.clear(); 1603 { 1604 ReaderMutexLock mu(self, *class_linker->DexLock()); 1605 for (const ClassLinker::DexCacheData& data : class_linker->GetDexCachesData()) { 1606 mirror::DexCache* dex_cache = 1607 down_cast<mirror::DexCache*>(self->DecodeJObject(data.weak_root)); 1608 if (dex_cache != nullptr) { 1609 dex_caches_.insert(dex_cache); 1610 } 1611 } 1612 } 1613 ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_); 1614 // Dump the normal objects before ArtMethods. 1615 image_space_.GetLiveBitmap()->Walk(ImageDumper::Callback, this); 1616 indent_os << "\n"; 1617 // TODO: Dump fields. 1618 // Dump methods after. 1619 const auto& methods_section = image_header_.GetMethodsSection(); 1620 DumpArtMethodVisitor visitor(this); 1621 methods_section.VisitPackedArtMethods(&visitor, 1622 image_space_.Begin(), 1623 image_header_.GetPointerSize()); 1624 // Dump the large objects separately. 1625 heap->GetLargeObjectsSpace()->GetLiveBitmap()->Walk(ImageDumper::Callback, this); 1626 indent_os << "\n"; 1627 } 1628 os << "STATS:\n" << std::flush; 1629 std::unique_ptr<File> file(OS::OpenFileForReading(image_filename.c_str())); 1630 size_t data_size = image_header_.GetDataSize(); // stored size in file. 1631 if (file == nullptr) { 1632 LOG(WARNING) << "Failed to find image in " << image_filename; 1633 } else { 1634 stats_.file_bytes = file->GetLength(); 1635 // If the image is compressed, adjust to decompressed size. 1636 size_t uncompressed_size = image_header_.GetImageSize() - sizeof(ImageHeader); 1637 if (image_header_.GetStorageMode() == ImageHeader::kStorageModeUncompressed) { 1638 DCHECK_EQ(uncompressed_size, data_size) << "Sizes should match for uncompressed image"; 1639 } 1640 stats_.file_bytes += uncompressed_size - data_size; 1641 } 1642 size_t header_bytes = sizeof(ImageHeader); 1643 const auto& object_section = image_header_.GetImageSection(ImageHeader::kSectionObjects); 1644 const auto& field_section = image_header_.GetImageSection(ImageHeader::kSectionArtFields); 1645 const auto& method_section = image_header_.GetMethodsSection(); 1646 const auto& dex_cache_arrays_section = image_header_.GetImageSection( 1647 ImageHeader::kSectionDexCacheArrays); 1648 const auto& intern_section = image_header_.GetImageSection( 1649 ImageHeader::kSectionInternedStrings); 1650 const auto& class_table_section = image_header_.GetImageSection( 1651 ImageHeader::kSectionClassTable); 1652 const auto& bitmap_section = image_header_.GetImageSection(ImageHeader::kSectionImageBitmap); 1653 1654 stats_.header_bytes = header_bytes; 1655 1656 // Objects are kObjectAlignment-aligned. 1657 // CHECK_EQ(RoundUp(header_bytes, kObjectAlignment), object_section.Offset()); 1658 if (object_section.Offset() > header_bytes) { 1659 stats_.alignment_bytes += object_section.Offset() - header_bytes; 1660 } 1661 1662 // Field section is 4-byte aligned. 1663 constexpr size_t kFieldSectionAlignment = 4U; 1664 uint32_t end_objects = object_section.Offset() + object_section.Size(); 1665 CHECK_EQ(RoundUp(end_objects, kFieldSectionAlignment), field_section.Offset()); 1666 stats_.alignment_bytes += field_section.Offset() - end_objects; 1667 1668 // Method section is 4/8 byte aligned depending on target. Just check for 4-byte alignment. 1669 uint32_t end_fields = field_section.Offset() + field_section.Size(); 1670 CHECK_ALIGNED(method_section.Offset(), 4); 1671 stats_.alignment_bytes += method_section.Offset() - end_fields; 1672 1673 // Dex cache arrays section is aligned depending on the target. Just check for 4-byte alignment. 1674 uint32_t end_methods = method_section.Offset() + method_section.Size(); 1675 CHECK_ALIGNED(dex_cache_arrays_section.Offset(), 4); 1676 stats_.alignment_bytes += dex_cache_arrays_section.Offset() - end_methods; 1677 1678 // Intern table is 8-byte aligned. 1679 uint32_t end_caches = dex_cache_arrays_section.Offset() + dex_cache_arrays_section.Size(); 1680 CHECK_EQ(RoundUp(end_caches, 8U), intern_section.Offset()); 1681 stats_.alignment_bytes += intern_section.Offset() - end_caches; 1682 1683 // Add space between intern table and class table. 1684 uint32_t end_intern = intern_section.Offset() + intern_section.Size(); 1685 stats_.alignment_bytes += class_table_section.Offset() - end_intern; 1686 1687 // Add space between end of image data and bitmap. Expect the bitmap to be page-aligned. 1688 const size_t bitmap_offset = sizeof(ImageHeader) + data_size; 1689 CHECK_ALIGNED(bitmap_section.Offset(), kPageSize); 1690 stats_.alignment_bytes += RoundUp(bitmap_offset, kPageSize) - bitmap_offset; 1691 1692 stats_.bitmap_bytes += bitmap_section.Size(); 1693 stats_.art_field_bytes += field_section.Size(); 1694 stats_.art_method_bytes += method_section.Size(); 1695 stats_.dex_cache_arrays_bytes += dex_cache_arrays_section.Size(); 1696 stats_.interned_strings_bytes += intern_section.Size(); 1697 stats_.class_table_bytes += class_table_section.Size(); 1698 stats_.Dump(os, indent_os); 1699 os << "\n"; 1700 1701 os << std::flush; 1702 1703 return oat_dumper_->Dump(os); 1704 } 1705 1706 private: 1707 class DumpArtMethodVisitor : public ArtMethodVisitor { 1708 public: 1709 explicit DumpArtMethodVisitor(ImageDumper* image_dumper) : image_dumper_(image_dumper) {} 1710 1711 virtual void Visit(ArtMethod* method) OVERRIDE SHARED_REQUIRES(Locks::mutator_lock_) { 1712 std::ostream& indent_os = image_dumper_->vios_.Stream(); 1713 indent_os << method << " " << " ArtMethod: " << PrettyMethod(method) << "\n"; 1714 image_dumper_->DumpMethod(method, indent_os); 1715 indent_os << "\n"; 1716 } 1717 1718 private: 1719 ImageDumper* const image_dumper_; 1720 }; 1721 1722 static void PrettyObjectValue(std::ostream& os, mirror::Class* type, mirror::Object* value) 1723 SHARED_REQUIRES(Locks::mutator_lock_) { 1724 CHECK(type != nullptr); 1725 if (value == nullptr) { 1726 os << StringPrintf("null %s\n", PrettyDescriptor(type).c_str()); 1727 } else if (type->IsStringClass()) { 1728 mirror::String* string = value->AsString(); 1729 os << StringPrintf("%p String: %s\n", string, 1730 PrintableString(string->ToModifiedUtf8().c_str()).c_str()); 1731 } else if (type->IsClassClass()) { 1732 mirror::Class* klass = value->AsClass(); 1733 os << StringPrintf("%p Class: %s\n", klass, PrettyDescriptor(klass).c_str()); 1734 } else { 1735 os << StringPrintf("%p %s\n", value, PrettyDescriptor(type).c_str()); 1736 } 1737 } 1738 1739 static void PrintField(std::ostream& os, ArtField* field, mirror::Object* obj) 1740 SHARED_REQUIRES(Locks::mutator_lock_) { 1741 os << StringPrintf("%s: ", field->GetName()); 1742 switch (field->GetTypeAsPrimitiveType()) { 1743 case Primitive::kPrimLong: 1744 os << StringPrintf("%" PRId64 " (0x%" PRIx64 ")\n", field->Get64(obj), field->Get64(obj)); 1745 break; 1746 case Primitive::kPrimDouble: 1747 os << StringPrintf("%f (%a)\n", field->GetDouble(obj), field->GetDouble(obj)); 1748 break; 1749 case Primitive::kPrimFloat: 1750 os << StringPrintf("%f (%a)\n", field->GetFloat(obj), field->GetFloat(obj)); 1751 break; 1752 case Primitive::kPrimInt: 1753 os << StringPrintf("%d (0x%x)\n", field->Get32(obj), field->Get32(obj)); 1754 break; 1755 case Primitive::kPrimChar: 1756 os << StringPrintf("%u (0x%x)\n", field->GetChar(obj), field->GetChar(obj)); 1757 break; 1758 case Primitive::kPrimShort: 1759 os << StringPrintf("%d (0x%x)\n", field->GetShort(obj), field->GetShort(obj)); 1760 break; 1761 case Primitive::kPrimBoolean: 1762 os << StringPrintf("%s (0x%x)\n", field->GetBoolean(obj)? "true" : "false", 1763 field->GetBoolean(obj)); 1764 break; 1765 case Primitive::kPrimByte: 1766 os << StringPrintf("%d (0x%x)\n", field->GetByte(obj), field->GetByte(obj)); 1767 break; 1768 case Primitive::kPrimNot: { 1769 // Get the value, don't compute the type unless it is non-null as we don't want 1770 // to cause class loading. 1771 mirror::Object* value = field->GetObj(obj); 1772 if (value == nullptr) { 1773 os << StringPrintf("null %s\n", PrettyDescriptor(field->GetTypeDescriptor()).c_str()); 1774 } else { 1775 // Grab the field type without causing resolution. 1776 mirror::Class* field_type = field->GetType<false>(); 1777 if (field_type != nullptr) { 1778 PrettyObjectValue(os, field_type, value); 1779 } else { 1780 os << StringPrintf("%p %s\n", value, 1781 PrettyDescriptor(field->GetTypeDescriptor()).c_str()); 1782 } 1783 } 1784 break; 1785 } 1786 default: 1787 os << "unexpected field type: " << field->GetTypeDescriptor() << "\n"; 1788 break; 1789 } 1790 } 1791 1792 static void DumpFields(std::ostream& os, mirror::Object* obj, mirror::Class* klass) 1793 SHARED_REQUIRES(Locks::mutator_lock_) { 1794 mirror::Class* super = klass->GetSuperClass(); 1795 if (super != nullptr) { 1796 DumpFields(os, obj, super); 1797 } 1798 for (ArtField& field : klass->GetIFields()) { 1799 PrintField(os, &field, obj); 1800 } 1801 } 1802 1803 bool InDumpSpace(const mirror::Object* object) { 1804 return image_space_.Contains(object); 1805 } 1806 1807 const void* GetQuickOatCodeBegin(ArtMethod* m) SHARED_REQUIRES(Locks::mutator_lock_) { 1808 const void* quick_code = m->GetEntryPointFromQuickCompiledCodePtrSize( 1809 image_header_.GetPointerSize()); 1810 if (Runtime::Current()->GetClassLinker()->IsQuickResolutionStub(quick_code)) { 1811 quick_code = oat_dumper_->GetQuickOatCode(m); 1812 } 1813 if (oat_dumper_->GetInstructionSet() == kThumb2) { 1814 quick_code = reinterpret_cast<void*>(reinterpret_cast<uintptr_t>(quick_code) & ~0x1); 1815 } 1816 return quick_code; 1817 } 1818 1819 uint32_t GetQuickOatCodeSize(ArtMethod* m) 1820 SHARED_REQUIRES(Locks::mutator_lock_) { 1821 const uint32_t* oat_code_begin = reinterpret_cast<const uint32_t*>(GetQuickOatCodeBegin(m)); 1822 if (oat_code_begin == nullptr) { 1823 return 0; 1824 } 1825 return oat_code_begin[-1]; 1826 } 1827 1828 const void* GetQuickOatCodeEnd(ArtMethod* m) 1829 SHARED_REQUIRES(Locks::mutator_lock_) { 1830 const uint8_t* oat_code_begin = reinterpret_cast<const uint8_t*>(GetQuickOatCodeBegin(m)); 1831 if (oat_code_begin == nullptr) { 1832 return nullptr; 1833 } 1834 return oat_code_begin + GetQuickOatCodeSize(m); 1835 } 1836 1837 static void Callback(mirror::Object* obj, void* arg) SHARED_REQUIRES(Locks::mutator_lock_) { 1838 DCHECK(obj != nullptr); 1839 DCHECK(arg != nullptr); 1840 ImageDumper* state = reinterpret_cast<ImageDumper*>(arg); 1841 if (!state->InDumpSpace(obj)) { 1842 return; 1843 } 1844 1845 size_t object_bytes = obj->SizeOf(); 1846 size_t alignment_bytes = RoundUp(object_bytes, kObjectAlignment) - object_bytes; 1847 state->stats_.object_bytes += object_bytes; 1848 state->stats_.alignment_bytes += alignment_bytes; 1849 1850 std::ostream& os = state->vios_.Stream(); 1851 1852 mirror::Class* obj_class = obj->GetClass(); 1853 if (obj_class->IsArrayClass()) { 1854 os << StringPrintf("%p: %s length:%d\n", obj, PrettyDescriptor(obj_class).c_str(), 1855 obj->AsArray()->GetLength()); 1856 } else if (obj->IsClass()) { 1857 mirror::Class* klass = obj->AsClass(); 1858 os << StringPrintf("%p: java.lang.Class \"%s\" (", obj, PrettyDescriptor(klass).c_str()) 1859 << klass->GetStatus() << ")\n"; 1860 } else if (obj_class->IsStringClass()) { 1861 os << StringPrintf("%p: java.lang.String %s\n", obj, 1862 PrintableString(obj->AsString()->ToModifiedUtf8().c_str()).c_str()); 1863 } else { 1864 os << StringPrintf("%p: %s\n", obj, PrettyDescriptor(obj_class).c_str()); 1865 } 1866 ScopedIndentation indent1(&state->vios_); 1867 DumpFields(os, obj, obj_class); 1868 const size_t image_pointer_size = state->image_header_.GetPointerSize(); 1869 if (obj->IsObjectArray()) { 1870 auto* obj_array = obj->AsObjectArray<mirror::Object>(); 1871 for (int32_t i = 0, length = obj_array->GetLength(); i < length; i++) { 1872 mirror::Object* value = obj_array->Get(i); 1873 size_t run = 0; 1874 for (int32_t j = i + 1; j < length; j++) { 1875 if (value == obj_array->Get(j)) { 1876 run++; 1877 } else { 1878 break; 1879 } 1880 } 1881 if (run == 0) { 1882 os << StringPrintf("%d: ", i); 1883 } else { 1884 os << StringPrintf("%d to %zd: ", i, i + run); 1885 i = i + run; 1886 } 1887 mirror::Class* value_class = 1888 (value == nullptr) ? obj_class->GetComponentType() : value->GetClass(); 1889 PrettyObjectValue(os, value_class, value); 1890 } 1891 } else if (obj->IsClass()) { 1892 mirror::Class* klass = obj->AsClass(); 1893 if (klass->NumStaticFields() != 0) { 1894 os << "STATICS:\n"; 1895 ScopedIndentation indent2(&state->vios_); 1896 for (ArtField& field : klass->GetSFields()) { 1897 PrintField(os, &field, field.GetDeclaringClass()); 1898 } 1899 } 1900 } else { 1901 auto it = state->dex_caches_.find(obj); 1902 if (it != state->dex_caches_.end()) { 1903 auto* dex_cache = down_cast<mirror::DexCache*>(obj); 1904 const auto& field_section = state->image_header_.GetImageSection( 1905 ImageHeader::kSectionArtFields); 1906 const auto& method_section = state->image_header_.GetMethodsSection(); 1907 size_t num_methods = dex_cache->NumResolvedMethods(); 1908 if (num_methods != 0u) { 1909 os << "Methods (size=" << num_methods << "):"; 1910 ScopedIndentation indent2(&state->vios_); 1911 auto* resolved_methods = dex_cache->GetResolvedMethods(); 1912 for (size_t i = 0, length = dex_cache->NumResolvedMethods(); i < length; ++i) { 1913 auto* elem = mirror::DexCache::GetElementPtrSize(resolved_methods, 1914 i, 1915 image_pointer_size); 1916 size_t run = 0; 1917 for (size_t j = i + 1; 1918 j != length && elem == mirror::DexCache::GetElementPtrSize(resolved_methods, 1919 j, 1920 image_pointer_size); 1921 ++j, ++run) {} 1922 if (run == 0) { 1923 os << StringPrintf("%zd: ", i); 1924 } else { 1925 os << StringPrintf("%zd to %zd: ", i, i + run); 1926 i = i + run; 1927 } 1928 std::string msg; 1929 if (elem == nullptr) { 1930 msg = "null"; 1931 } else if (method_section.Contains( 1932 reinterpret_cast<uint8_t*>(elem) - state->image_space_.Begin())) { 1933 msg = PrettyMethod(reinterpret_cast<ArtMethod*>(elem)); 1934 } else { 1935 msg = "<not in method section>"; 1936 } 1937 os << StringPrintf("%p %s\n", elem, msg.c_str()); 1938 } 1939 } 1940 size_t num_fields = dex_cache->NumResolvedFields(); 1941 if (num_fields != 0u) { 1942 os << "Fields (size=" << num_fields << "):"; 1943 ScopedIndentation indent2(&state->vios_); 1944 auto* resolved_fields = dex_cache->GetResolvedFields(); 1945 for (size_t i = 0, length = dex_cache->NumResolvedFields(); i < length; ++i) { 1946 auto* elem = mirror::DexCache::GetElementPtrSize(resolved_fields, i, image_pointer_size); 1947 size_t run = 0; 1948 for (size_t j = i + 1; 1949 j != length && elem == mirror::DexCache::GetElementPtrSize(resolved_fields, 1950 j, 1951 image_pointer_size); 1952 ++j, ++run) {} 1953 if (run == 0) { 1954 os << StringPrintf("%zd: ", i); 1955 } else { 1956 os << StringPrintf("%zd to %zd: ", i, i + run); 1957 i = i + run; 1958 } 1959 std::string msg; 1960 if (elem == nullptr) { 1961 msg = "null"; 1962 } else if (field_section.Contains( 1963 reinterpret_cast<uint8_t*>(elem) - state->image_space_.Begin())) { 1964 msg = PrettyField(reinterpret_cast<ArtField*>(elem)); 1965 } else { 1966 msg = "<not in field section>"; 1967 } 1968 os << StringPrintf("%p %s\n", elem, msg.c_str()); 1969 } 1970 } 1971 } 1972 } 1973 std::string temp; 1974 state->stats_.Update(obj_class->GetDescriptor(&temp), object_bytes); 1975 } 1976 1977 void DumpMethod(ArtMethod* method, std::ostream& indent_os) 1978 SHARED_REQUIRES(Locks::mutator_lock_) { 1979 DCHECK(method != nullptr); 1980 const void* quick_oat_code_begin = GetQuickOatCodeBegin(method); 1981 const void* quick_oat_code_end = GetQuickOatCodeEnd(method); 1982 OatQuickMethodHeader* method_header = reinterpret_cast<OatQuickMethodHeader*>( 1983 reinterpret_cast<uintptr_t>(quick_oat_code_begin) - sizeof(OatQuickMethodHeader)); 1984 if (method->IsNative()) { 1985 if (!Runtime::Current()->GetClassLinker()->IsQuickGenericJniStub(quick_oat_code_begin)) { 1986 DCHECK(method_header->GetNativeGcMap() == nullptr) << PrettyMethod(method); 1987 DCHECK(method_header->GetMappingTable() == nullptr) << PrettyMethod(method); 1988 } 1989 bool first_occurrence; 1990 uint32_t quick_oat_code_size = GetQuickOatCodeSize(method); 1991 ComputeOatSize(quick_oat_code_begin, &first_occurrence); 1992 if (first_occurrence) { 1993 stats_.native_to_managed_code_bytes += quick_oat_code_size; 1994 } 1995 if (quick_oat_code_begin != method->GetEntryPointFromQuickCompiledCodePtrSize( 1996 image_header_.GetPointerSize())) { 1997 indent_os << StringPrintf("OAT CODE: %p\n", quick_oat_code_begin); 1998 } 1999 } else if (method->IsAbstract() || 2000 method->IsCalleeSaveMethod() || 2001 method->IsResolutionMethod() || 2002 (method == Runtime::Current()->GetImtConflictMethod()) || 2003 method->IsImtUnimplementedMethod() || 2004 method->IsClassInitializer()) { 2005 // Don't print information for these. 2006 } else { 2007 const DexFile::CodeItem* code_item = method->GetCodeItem(); 2008 size_t dex_instruction_bytes = code_item->insns_size_in_code_units_ * 2; 2009 stats_.dex_instruction_bytes += dex_instruction_bytes; 2010 2011 bool first_occurrence; 2012 size_t gc_map_bytes = ComputeOatSize(method_header->GetNativeGcMap(), &first_occurrence); 2013 if (first_occurrence) { 2014 stats_.gc_map_bytes += gc_map_bytes; 2015 } 2016 2017 size_t pc_mapping_table_bytes = ComputeOatSize( 2018 method_header->GetMappingTable(), &first_occurrence); 2019 if (first_occurrence) { 2020 stats_.pc_mapping_table_bytes += pc_mapping_table_bytes; 2021 } 2022 2023 size_t vmap_table_bytes = 0u; 2024 if (!method_header->IsOptimized()) { 2025 // Method compiled with the optimizing compiler have no vmap table. 2026 vmap_table_bytes = ComputeOatSize(method_header->GetVmapTable(), &first_occurrence); 2027 if (first_occurrence) { 2028 stats_.vmap_table_bytes += vmap_table_bytes; 2029 } 2030 } 2031 2032 uint32_t quick_oat_code_size = GetQuickOatCodeSize(method); 2033 ComputeOatSize(quick_oat_code_begin, &first_occurrence); 2034 if (first_occurrence) { 2035 stats_.managed_code_bytes += quick_oat_code_size; 2036 if (method->IsConstructor()) { 2037 if (method->IsStatic()) { 2038 stats_.class_initializer_code_bytes += quick_oat_code_size; 2039 } else if (dex_instruction_bytes > kLargeConstructorDexBytes) { 2040 stats_.large_initializer_code_bytes += quick_oat_code_size; 2041 } 2042 } else if (dex_instruction_bytes > kLargeMethodDexBytes) { 2043 stats_.large_method_code_bytes += quick_oat_code_size; 2044 } 2045 } 2046 stats_.managed_code_bytes_ignoring_deduplication += quick_oat_code_size; 2047 2048 uint32_t method_access_flags = method->GetAccessFlags(); 2049 2050 indent_os << StringPrintf("OAT CODE: %p-%p\n", quick_oat_code_begin, quick_oat_code_end); 2051 indent_os << StringPrintf("SIZE: Dex Instructions=%zd GC=%zd Mapping=%zd AccessFlags=0x%x\n", 2052 dex_instruction_bytes, gc_map_bytes, pc_mapping_table_bytes, 2053 method_access_flags); 2054 2055 size_t total_size = dex_instruction_bytes + gc_map_bytes + pc_mapping_table_bytes + 2056 vmap_table_bytes + quick_oat_code_size + ArtMethod::Size(image_header_.GetPointerSize()); 2057 2058 double expansion = 2059 static_cast<double>(quick_oat_code_size) / static_cast<double>(dex_instruction_bytes); 2060 stats_.ComputeOutliers(total_size, expansion, method); 2061 } 2062 } 2063 2064 std::set<const void*> already_seen_; 2065 // Compute the size of the given data within the oat file and whether this is the first time 2066 // this data has been requested 2067 size_t ComputeOatSize(const void* oat_data, bool* first_occurrence) { 2068 if (already_seen_.count(oat_data) == 0) { 2069 *first_occurrence = true; 2070 already_seen_.insert(oat_data); 2071 } else { 2072 *first_occurrence = false; 2073 } 2074 return oat_dumper_->ComputeSize(oat_data); 2075 } 2076 2077 public: 2078 struct Stats { 2079 size_t oat_file_bytes; 2080 size_t file_bytes; 2081 2082 size_t header_bytes; 2083 size_t object_bytes; 2084 size_t art_field_bytes; 2085 size_t art_method_bytes; 2086 size_t dex_cache_arrays_bytes; 2087 size_t interned_strings_bytes; 2088 size_t class_table_bytes; 2089 size_t bitmap_bytes; 2090 size_t alignment_bytes; 2091 2092 size_t managed_code_bytes; 2093 size_t managed_code_bytes_ignoring_deduplication; 2094 size_t managed_to_native_code_bytes; 2095 size_t native_to_managed_code_bytes; 2096 size_t class_initializer_code_bytes; 2097 size_t large_initializer_code_bytes; 2098 size_t large_method_code_bytes; 2099 2100 size_t gc_map_bytes; 2101 size_t pc_mapping_table_bytes; 2102 size_t vmap_table_bytes; 2103 2104 size_t dex_instruction_bytes; 2105 2106 std::vector<ArtMethod*> method_outlier; 2107 std::vector<size_t> method_outlier_size; 2108 std::vector<double> method_outlier_expansion; 2109 std::vector<std::pair<std::string, size_t>> oat_dex_file_sizes; 2110 2111 Stats() 2112 : oat_file_bytes(0), 2113 file_bytes(0), 2114 header_bytes(0), 2115 object_bytes(0), 2116 art_field_bytes(0), 2117 art_method_bytes(0), 2118 dex_cache_arrays_bytes(0), 2119 interned_strings_bytes(0), 2120 class_table_bytes(0), 2121 bitmap_bytes(0), 2122 alignment_bytes(0), 2123 managed_code_bytes(0), 2124 managed_code_bytes_ignoring_deduplication(0), 2125 managed_to_native_code_bytes(0), 2126 native_to_managed_code_bytes(0), 2127 class_initializer_code_bytes(0), 2128 large_initializer_code_bytes(0), 2129 large_method_code_bytes(0), 2130 gc_map_bytes(0), 2131 pc_mapping_table_bytes(0), 2132 vmap_table_bytes(0), 2133 dex_instruction_bytes(0) {} 2134 2135 struct SizeAndCount { 2136 SizeAndCount(size_t bytes_in, size_t count_in) : bytes(bytes_in), count(count_in) {} 2137 size_t bytes; 2138 size_t count; 2139 }; 2140 typedef SafeMap<std::string, SizeAndCount> SizeAndCountTable; 2141 SizeAndCountTable sizes_and_counts; 2142 2143 void Update(const char* descriptor, size_t object_bytes_in) { 2144 SizeAndCountTable::iterator it = sizes_and_counts.find(descriptor); 2145 if (it != sizes_and_counts.end()) { 2146 it->second.bytes += object_bytes_in; 2147 it->second.count += 1; 2148 } else { 2149 sizes_and_counts.Put(descriptor, SizeAndCount(object_bytes_in, 1)); 2150 } 2151 } 2152 2153 double PercentOfOatBytes(size_t size) { 2154 return (static_cast<double>(size) / static_cast<double>(oat_file_bytes)) * 100; 2155 } 2156 2157 double PercentOfFileBytes(size_t size) { 2158 return (static_cast<double>(size) / static_cast<double>(file_bytes)) * 100; 2159 } 2160 2161 double PercentOfObjectBytes(size_t size) { 2162 return (static_cast<double>(size) / static_cast<double>(object_bytes)) * 100; 2163 } 2164 2165 void ComputeOutliers(size_t total_size, double expansion, ArtMethod* method) { 2166 method_outlier_size.push_back(total_size); 2167 method_outlier_expansion.push_back(expansion); 2168 method_outlier.push_back(method); 2169 } 2170 2171 void DumpOutliers(std::ostream& os) 2172 SHARED_REQUIRES(Locks::mutator_lock_) { 2173 size_t sum_of_sizes = 0; 2174 size_t sum_of_sizes_squared = 0; 2175 size_t sum_of_expansion = 0; 2176 size_t sum_of_expansion_squared = 0; 2177 size_t n = method_outlier_size.size(); 2178 if (n == 0) { 2179 return; 2180 } 2181 for (size_t i = 0; i < n; i++) { 2182 size_t cur_size = method_outlier_size[i]; 2183 sum_of_sizes += cur_size; 2184 sum_of_sizes_squared += cur_size * cur_size; 2185 double cur_expansion = method_outlier_expansion[i]; 2186 sum_of_expansion += cur_expansion; 2187 sum_of_expansion_squared += cur_expansion * cur_expansion; 2188 } 2189 size_t size_mean = sum_of_sizes / n; 2190 size_t size_variance = (sum_of_sizes_squared - sum_of_sizes * size_mean) / (n - 1); 2191 double expansion_mean = sum_of_expansion / n; 2192 double expansion_variance = 2193 (sum_of_expansion_squared - sum_of_expansion * expansion_mean) / (n - 1); 2194 2195 // Dump methods whose size is a certain number of standard deviations from the mean 2196 size_t dumped_values = 0; 2197 size_t skipped_values = 0; 2198 for (size_t i = 100; i > 0; i--) { // i is the current number of standard deviations 2199 size_t cur_size_variance = i * i * size_variance; 2200 bool first = true; 2201 for (size_t j = 0; j < n; j++) { 2202 size_t cur_size = method_outlier_size[j]; 2203 if (cur_size > size_mean) { 2204 size_t cur_var = cur_size - size_mean; 2205 cur_var = cur_var * cur_var; 2206 if (cur_var > cur_size_variance) { 2207 if (dumped_values > 20) { 2208 if (i == 1) { 2209 skipped_values++; 2210 } else { 2211 i = 2; // jump to counting for 1 standard deviation 2212 break; 2213 } 2214 } else { 2215 if (first) { 2216 os << "\nBig methods (size > " << i << " standard deviations the norm):\n"; 2217 first = false; 2218 } 2219 os << PrettyMethod(method_outlier[j]) << " requires storage of " 2220 << PrettySize(cur_size) << "\n"; 2221 method_outlier_size[j] = 0; // don't consider this method again 2222 dumped_values++; 2223 } 2224 } 2225 } 2226 } 2227 } 2228 if (skipped_values > 0) { 2229 os << "... skipped " << skipped_values 2230 << " methods with size > 1 standard deviation from the norm\n"; 2231 } 2232 os << std::flush; 2233 2234 // Dump methods whose expansion is a certain number of standard deviations from the mean 2235 dumped_values = 0; 2236 skipped_values = 0; 2237 for (size_t i = 10; i > 0; i--) { // i is the current number of standard deviations 2238 double cur_expansion_variance = i * i * expansion_variance; 2239 bool first = true; 2240 for (size_t j = 0; j < n; j++) { 2241 double cur_expansion = method_outlier_expansion[j]; 2242 if (cur_expansion > expansion_mean) { 2243 size_t cur_var = cur_expansion - expansion_mean; 2244 cur_var = cur_var * cur_var; 2245 if (cur_var > cur_expansion_variance) { 2246 if (dumped_values > 20) { 2247 if (i == 1) { 2248 skipped_values++; 2249 } else { 2250 i = 2; // jump to counting for 1 standard deviation 2251 break; 2252 } 2253 } else { 2254 if (first) { 2255 os << "\nLarge expansion methods (size > " << i 2256 << " standard deviations the norm):\n"; 2257 first = false; 2258 } 2259 os << PrettyMethod(method_outlier[j]) << " expanded code by " 2260 << cur_expansion << "\n"; 2261 method_outlier_expansion[j] = 0.0; // don't consider this method again 2262 dumped_values++; 2263 } 2264 } 2265 } 2266 } 2267 } 2268 if (skipped_values > 0) { 2269 os << "... skipped " << skipped_values 2270 << " methods with expansion > 1 standard deviation from the norm\n"; 2271 } 2272 os << "\n" << std::flush; 2273 } 2274 2275 void Dump(std::ostream& os, std::ostream& indent_os) 2276 SHARED_REQUIRES(Locks::mutator_lock_) { 2277 { 2278 os << "art_file_bytes = " << PrettySize(file_bytes) << "\n\n" 2279 << "art_file_bytes = header_bytes + object_bytes + alignment_bytes\n"; 2280 indent_os << StringPrintf("header_bytes = %8zd (%2.0f%% of art file bytes)\n" 2281 "object_bytes = %8zd (%2.0f%% of art file bytes)\n" 2282 "art_field_bytes = %8zd (%2.0f%% of art file bytes)\n" 2283 "art_method_bytes = %8zd (%2.0f%% of art file bytes)\n" 2284 "dex_cache_arrays_bytes = %8zd (%2.0f%% of art file bytes)\n" 2285 "interned_string_bytes = %8zd (%2.0f%% of art file bytes)\n" 2286 "class_table_bytes = %8zd (%2.0f%% of art file bytes)\n" 2287 "bitmap_bytes = %8zd (%2.0f%% of art file bytes)\n" 2288 "alignment_bytes = %8zd (%2.0f%% of art file bytes)\n\n", 2289 header_bytes, PercentOfFileBytes(header_bytes), 2290 object_bytes, PercentOfFileBytes(object_bytes), 2291 art_field_bytes, PercentOfFileBytes(art_field_bytes), 2292 art_method_bytes, PercentOfFileBytes(art_method_bytes), 2293 dex_cache_arrays_bytes, 2294 PercentOfFileBytes(dex_cache_arrays_bytes), 2295 interned_strings_bytes, 2296 PercentOfFileBytes(interned_strings_bytes), 2297 class_table_bytes, PercentOfFileBytes(class_table_bytes), 2298 bitmap_bytes, PercentOfFileBytes(bitmap_bytes), 2299 alignment_bytes, PercentOfFileBytes(alignment_bytes)) 2300 << std::flush; 2301 CHECK_EQ(file_bytes, 2302 header_bytes + object_bytes + art_field_bytes + art_method_bytes + 2303 dex_cache_arrays_bytes + interned_strings_bytes + class_table_bytes + 2304 bitmap_bytes + alignment_bytes); 2305 } 2306 2307 os << "object_bytes breakdown:\n"; 2308 size_t object_bytes_total = 0; 2309 for (const auto& sizes_and_count : sizes_and_counts) { 2310 const std::string& descriptor(sizes_and_count.first); 2311 double average = static_cast<double>(sizes_and_count.second.bytes) / 2312 static_cast<double>(sizes_and_count.second.count); 2313 double percent = PercentOfObjectBytes(sizes_and_count.second.bytes); 2314 os << StringPrintf("%32s %8zd bytes %6zd instances " 2315 "(%4.0f bytes/instance) %2.0f%% of object_bytes\n", 2316 descriptor.c_str(), sizes_and_count.second.bytes, 2317 sizes_and_count.second.count, average, percent); 2318 object_bytes_total += sizes_and_count.second.bytes; 2319 } 2320 os << "\n" << std::flush; 2321 CHECK_EQ(object_bytes, object_bytes_total); 2322 2323 os << StringPrintf("oat_file_bytes = %8zd\n" 2324 "managed_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 2325 "managed_to_native_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 2326 "native_to_managed_code_bytes = %8zd (%2.0f%% of oat file bytes)\n\n" 2327 "class_initializer_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 2328 "large_initializer_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 2329 "large_method_code_bytes = %8zd (%2.0f%% of oat file bytes)\n\n", 2330 oat_file_bytes, 2331 managed_code_bytes, 2332 PercentOfOatBytes(managed_code_bytes), 2333 managed_to_native_code_bytes, 2334 PercentOfOatBytes(managed_to_native_code_bytes), 2335 native_to_managed_code_bytes, 2336 PercentOfOatBytes(native_to_managed_code_bytes), 2337 class_initializer_code_bytes, 2338 PercentOfOatBytes(class_initializer_code_bytes), 2339 large_initializer_code_bytes, 2340 PercentOfOatBytes(large_initializer_code_bytes), 2341 large_method_code_bytes, 2342 PercentOfOatBytes(large_method_code_bytes)) 2343 << "DexFile sizes:\n"; 2344 for (const std::pair<std::string, size_t>& oat_dex_file_size : oat_dex_file_sizes) { 2345 os << StringPrintf("%s = %zd (%2.0f%% of oat file bytes)\n", 2346 oat_dex_file_size.first.c_str(), oat_dex_file_size.second, 2347 PercentOfOatBytes(oat_dex_file_size.second)); 2348 } 2349 2350 os << "\n" << StringPrintf("gc_map_bytes = %7zd (%2.0f%% of oat file bytes)\n" 2351 "pc_mapping_table_bytes = %7zd (%2.0f%% of oat file bytes)\n" 2352 "vmap_table_bytes = %7zd (%2.0f%% of oat file bytes)\n\n", 2353 gc_map_bytes, PercentOfOatBytes(gc_map_bytes), 2354 pc_mapping_table_bytes, PercentOfOatBytes(pc_mapping_table_bytes), 2355 vmap_table_bytes, PercentOfOatBytes(vmap_table_bytes)) 2356 << std::flush; 2357 2358 os << StringPrintf("dex_instruction_bytes = %zd\n", dex_instruction_bytes) 2359 << StringPrintf("managed_code_bytes expansion = %.2f (ignoring deduplication %.2f)\n\n", 2360 static_cast<double>(managed_code_bytes) / 2361 static_cast<double>(dex_instruction_bytes), 2362 static_cast<double>(managed_code_bytes_ignoring_deduplication) / 2363 static_cast<double>(dex_instruction_bytes)) 2364 << std::flush; 2365 2366 DumpOutliers(os); 2367 } 2368 } stats_; 2369 2370 private: 2371 enum { 2372 // Number of bytes for a constructor to be considered large. Based on the 1000 basic block 2373 // threshold, we assume 2 bytes per instruction and 2 instructions per block. 2374 kLargeConstructorDexBytes = 4000, 2375 // Number of bytes for a method to be considered large. Based on the 4000 basic block 2376 // threshold, we assume 2 bytes per instruction and 2 instructions per block. 2377 kLargeMethodDexBytes = 16000 2378 }; 2379 2380 // For performance, use the *os_ directly for anything that doesn't need indentation 2381 // and prepare an indentation stream with default indentation 1. 2382 std::ostream* os_; 2383 VariableIndentationOutputStream vios_; 2384 ScopedIndentation indent1_; 2385 2386 gc::space::ImageSpace& image_space_; 2387 const ImageHeader& image_header_; 2388 std::unique_ptr<OatDumper> oat_dumper_; 2389 OatDumperOptions* oat_dumper_options_; 2390 std::set<mirror::Object*> dex_caches_; 2391 2392 DISALLOW_COPY_AND_ASSIGN(ImageDumper); 2393}; 2394 2395static int DumpImage(gc::space::ImageSpace* image_space, 2396 OatDumperOptions* options, 2397 std::ostream* os) SHARED_REQUIRES(Locks::mutator_lock_) { 2398 const ImageHeader& image_header = image_space->GetImageHeader(); 2399 if (!image_header.IsValid()) { 2400 fprintf(stderr, "Invalid image header %s\n", image_space->GetImageLocation().c_str()); 2401 return EXIT_FAILURE; 2402 } 2403 ImageDumper image_dumper(os, *image_space, image_header, options); 2404 if (!image_dumper.Dump()) { 2405 return EXIT_FAILURE; 2406 } 2407 return EXIT_SUCCESS; 2408} 2409 2410static int DumpImages(Runtime* runtime, OatDumperOptions* options, std::ostream* os) { 2411 // Dumping the image, no explicit class loader. 2412 ScopedNullHandle<mirror::ClassLoader> null_class_loader; 2413 options->class_loader_ = &null_class_loader; 2414 2415 ScopedObjectAccess soa(Thread::Current()); 2416 if (options->app_image_ != nullptr) { 2417 if (options->app_oat_ == nullptr) { 2418 LOG(ERROR) << "Can not dump app image without app oat file"; 2419 return EXIT_FAILURE; 2420 } 2421 // We can't know if the app image is 32 bits yet, but it contains pointers into the oat file. 2422 // We need to map the oat file in the low 4gb or else the fixup wont be able to fit oat file 2423 // pointers into 32 bit pointer sized ArtMethods. 2424 std::string error_msg; 2425 std::unique_ptr<OatFile> oat_file(OatFile::Open(options->app_oat_, 2426 options->app_oat_, 2427 nullptr, 2428 nullptr, 2429 false, 2430 /*low_4gb*/true, 2431 nullptr, 2432 &error_msg)); 2433 if (oat_file == nullptr) { 2434 LOG(ERROR) << "Failed to open oat file " << options->app_oat_ << " with error " << error_msg; 2435 return EXIT_FAILURE; 2436 } 2437 std::unique_ptr<gc::space::ImageSpace> space( 2438 gc::space::ImageSpace::CreateFromAppImage(options->app_image_, oat_file.get(), &error_msg)); 2439 if (space == nullptr) { 2440 LOG(ERROR) << "Failed to open app image " << options->app_image_ << " with error " 2441 << error_msg; 2442 } 2443 // Open dex files for the image. 2444 std::vector<std::unique_ptr<const DexFile>> dex_files; 2445 if (!runtime->GetClassLinker()->OpenImageDexFiles(space.get(), &dex_files, &error_msg)) { 2446 LOG(ERROR) << "Failed to open app image dex files " << options->app_image_ << " with error " 2447 << error_msg; 2448 } 2449 // Dump the actual image. 2450 int result = DumpImage(space.get(), options, os); 2451 if (result != EXIT_SUCCESS) { 2452 return result; 2453 } 2454 // Fall through to dump the boot images. 2455 } 2456 2457 gc::Heap* heap = runtime->GetHeap(); 2458 CHECK(heap->HasBootImageSpace()) << "No image spaces"; 2459 for (gc::space::ImageSpace* image_space : heap->GetBootImageSpaces()) { 2460 int result = DumpImage(image_space, options, os); 2461 if (result != EXIT_SUCCESS) { 2462 return result; 2463 } 2464 } 2465 return EXIT_SUCCESS; 2466} 2467 2468static int DumpOatWithRuntime(Runtime* runtime, OatFile* oat_file, OatDumperOptions* options, 2469 std::ostream* os) { 2470 CHECK(runtime != nullptr && oat_file != nullptr && options != nullptr); 2471 2472 Thread* self = Thread::Current(); 2473 CHECK(self != nullptr); 2474 // Need well-known-classes. 2475 WellKnownClasses::Init(self->GetJniEnv()); 2476 2477 // Need to register dex files to get a working dex cache. 2478 ScopedObjectAccess soa(self); 2479 ClassLinker* class_linker = runtime->GetClassLinker(); 2480 runtime->GetOatFileManager().RegisterOatFile(std::unique_ptr<const OatFile>(oat_file)); 2481 std::vector<const DexFile*> class_path; 2482 for (const OatFile::OatDexFile* odf : oat_file->GetOatDexFiles()) { 2483 std::string error_msg; 2484 const DexFile* const dex_file = OpenDexFile(odf, &error_msg); 2485 CHECK(dex_file != nullptr) << error_msg; 2486 class_linker->RegisterDexFile(*dex_file, runtime->GetLinearAlloc()); 2487 class_path.push_back(dex_file); 2488 } 2489 2490 // Need a class loader. 2491 // Fake that we're a compiler. 2492 jobject class_loader = class_linker->CreatePathClassLoader(self, class_path); 2493 2494 // Use the class loader while dumping. 2495 StackHandleScope<1> scope(self); 2496 Handle<mirror::ClassLoader> loader_handle = scope.NewHandle( 2497 soa.Decode<mirror::ClassLoader*>(class_loader)); 2498 options->class_loader_ = &loader_handle; 2499 2500 OatDumper oat_dumper(*oat_file, *options); 2501 bool success = oat_dumper.Dump(*os); 2502 return (success) ? EXIT_SUCCESS : EXIT_FAILURE; 2503} 2504 2505static int DumpOatWithoutRuntime(OatFile* oat_file, OatDumperOptions* options, std::ostream* os) { 2506 CHECK(oat_file != nullptr && options != nullptr); 2507 // No image = no class loader. 2508 ScopedNullHandle<mirror::ClassLoader> null_class_loader; 2509 options->class_loader_ = &null_class_loader; 2510 2511 OatDumper oat_dumper(*oat_file, *options); 2512 bool success = oat_dumper.Dump(*os); 2513 return (success) ? EXIT_SUCCESS : EXIT_FAILURE; 2514} 2515 2516static int DumpOat(Runtime* runtime, const char* oat_filename, OatDumperOptions* options, 2517 std::ostream* os) { 2518 std::string error_msg; 2519 OatFile* oat_file = OatFile::Open(oat_filename, 2520 oat_filename, 2521 nullptr, 2522 nullptr, 2523 false, 2524 /*low_4gb*/false, 2525 nullptr, 2526 &error_msg); 2527 if (oat_file == nullptr) { 2528 fprintf(stderr, "Failed to open oat file from '%s': %s\n", oat_filename, error_msg.c_str()); 2529 return EXIT_FAILURE; 2530 } 2531 2532 if (runtime != nullptr) { 2533 return DumpOatWithRuntime(runtime, oat_file, options, os); 2534 } else { 2535 return DumpOatWithoutRuntime(oat_file, options, os); 2536 } 2537} 2538 2539static int SymbolizeOat(const char* oat_filename, std::string& output_name, bool no_bits) { 2540 std::string error_msg; 2541 OatFile* oat_file = OatFile::Open(oat_filename, 2542 oat_filename, 2543 nullptr, 2544 nullptr, 2545 false, 2546 /*low_4gb*/false, 2547 nullptr, 2548 &error_msg); 2549 if (oat_file == nullptr) { 2550 fprintf(stderr, "Failed to open oat file from '%s': %s\n", oat_filename, error_msg.c_str()); 2551 return EXIT_FAILURE; 2552 } 2553 2554 bool result; 2555 // Try to produce an ELF file of the same type. This is finicky, as we have used 32-bit ELF 2556 // files for 64-bit code in the past. 2557 if (Is64BitInstructionSet(oat_file->GetOatHeader().GetInstructionSet())) { 2558 OatSymbolizer<ElfTypes64> oat_symbolizer(oat_file, output_name, no_bits); 2559 result = oat_symbolizer.Symbolize(); 2560 } else { 2561 OatSymbolizer<ElfTypes32> oat_symbolizer(oat_file, output_name, no_bits); 2562 result = oat_symbolizer.Symbolize(); 2563 } 2564 if (!result) { 2565 fprintf(stderr, "Failed to symbolize\n"); 2566 return EXIT_FAILURE; 2567 } 2568 2569 return EXIT_SUCCESS; 2570} 2571 2572struct OatdumpArgs : public CmdlineArgs { 2573 protected: 2574 using Base = CmdlineArgs; 2575 2576 virtual ParseStatus ParseCustom(const StringPiece& option, 2577 std::string* error_msg) OVERRIDE { 2578 { 2579 ParseStatus base_parse = Base::ParseCustom(option, error_msg); 2580 if (base_parse != kParseUnknownArgument) { 2581 return base_parse; 2582 } 2583 } 2584 2585 if (option.starts_with("--oat-file=")) { 2586 oat_filename_ = option.substr(strlen("--oat-file=")).data(); 2587 } else if (option.starts_with("--image=")) { 2588 image_location_ = option.substr(strlen("--image=")).data(); 2589 } else if (option =="--dump:raw_mapping_table") { 2590 dump_raw_mapping_table_ = true; 2591 } else if (option == "--dump:raw_gc_map") { 2592 dump_raw_gc_map_ = true; 2593 } else if (option == "--no-dump:vmap") { 2594 dump_vmap_ = false; 2595 } else if (option =="--dump:code_info_stack_maps") { 2596 dump_code_info_stack_maps_ = true; 2597 } else if (option == "--no-disassemble") { 2598 disassemble_code_ = false; 2599 } else if (option =="--header-only") { 2600 dump_header_only_ = true; 2601 } else if (option.starts_with("--symbolize=")) { 2602 oat_filename_ = option.substr(strlen("--symbolize=")).data(); 2603 symbolize_ = true; 2604 } else if (option.starts_with("--only-keep-debug")) { 2605 only_keep_debug_ = true; 2606 } else if (option.starts_with("--class-filter=")) { 2607 class_filter_ = option.substr(strlen("--class-filter=")).data(); 2608 } else if (option.starts_with("--method-filter=")) { 2609 method_filter_ = option.substr(strlen("--method-filter=")).data(); 2610 } else if (option.starts_with("--list-classes")) { 2611 list_classes_ = true; 2612 } else if (option.starts_with("--list-methods")) { 2613 list_methods_ = true; 2614 } else if (option.starts_with("--export-dex-to=")) { 2615 export_dex_location_ = option.substr(strlen("--export-dex-to=")).data(); 2616 } else if (option.starts_with("--addr2instr=")) { 2617 if (!ParseUint(option.substr(strlen("--addr2instr=")).data(), &addr2instr_)) { 2618 *error_msg = "Address conversion failed"; 2619 return kParseError; 2620 } 2621 } else if (option.starts_with("--app-image=")) { 2622 app_image_ = option.substr(strlen("--app-image=")).data(); 2623 } else if (option.starts_with("--app-oat=")) { 2624 app_oat_ = option.substr(strlen("--app-oat=")).data(); 2625 } else { 2626 return kParseUnknownArgument; 2627 } 2628 2629 return kParseOk; 2630 } 2631 2632 virtual ParseStatus ParseChecks(std::string* error_msg) OVERRIDE { 2633 // Infer boot image location from the image location if possible. 2634 if (boot_image_location_ == nullptr) { 2635 boot_image_location_ = image_location_; 2636 } 2637 2638 // Perform the parent checks. 2639 ParseStatus parent_checks = Base::ParseChecks(error_msg); 2640 if (parent_checks != kParseOk) { 2641 return parent_checks; 2642 } 2643 2644 // Perform our own checks. 2645 if (image_location_ == nullptr && oat_filename_ == nullptr) { 2646 *error_msg = "Either --image or --oat-file must be specified"; 2647 return kParseError; 2648 } else if (image_location_ != nullptr && oat_filename_ != nullptr) { 2649 *error_msg = "Either --image or --oat-file must be specified but not both"; 2650 return kParseError; 2651 } 2652 2653 return kParseOk; 2654 } 2655 2656 virtual std::string GetUsage() const { 2657 std::string usage; 2658 2659 usage += 2660 "Usage: oatdump [options] ...\n" 2661 " Example: oatdump --image=$ANDROID_PRODUCT_OUT/system/framework/boot.art\n" 2662 " Example: adb shell oatdump --image=/system/framework/boot.art\n" 2663 "\n" 2664 // Either oat-file or image is required. 2665 " --oat-file=<file.oat>: specifies an input oat filename.\n" 2666 " Example: --oat-file=/system/framework/boot.oat\n" 2667 "\n" 2668 " --image=<file.art>: specifies an input image location.\n" 2669 " Example: --image=/system/framework/boot.art\n" 2670 "\n" 2671 " --app-image=<file.art>: specifies an input app image. Must also have a specified\n" 2672 " boot image and app oat file.\n" 2673 " Example: --app-image=app.art\n" 2674 "\n" 2675 " --app-oat=<file.odex>: specifies an input app oat.\n" 2676 " Example: --app-oat=app.odex\n" 2677 "\n"; 2678 2679 usage += Base::GetUsage(); 2680 2681 usage += // Optional. 2682 " --dump:raw_mapping_table enables dumping of the mapping table.\n" 2683 " Example: --dump:raw_mapping_table\n" 2684 "\n" 2685 " --dump:raw_gc_map enables dumping of the GC map.\n" 2686 " Example: --dump:raw_gc_map\n" 2687 "\n" 2688 " --no-dump:vmap may be used to disable vmap dumping.\n" 2689 " Example: --no-dump:vmap\n" 2690 "\n" 2691 " --dump:code_info_stack_maps enables dumping of stack maps in CodeInfo sections.\n" 2692 " Example: --dump:code_info_stack_maps\n" 2693 "\n" 2694 " --no-disassemble may be used to disable disassembly.\n" 2695 " Example: --no-disassemble\n" 2696 "\n" 2697 " --header-only may be used to print only the oat header.\n" 2698 " Example: --header-only\n" 2699 "\n" 2700 " --list-classes may be used to list target file classes (can be used with filters).\n" 2701 " Example: --list-classes\n" 2702 " Example: --list-classes --class-filter=com.example.foo\n" 2703 "\n" 2704 " --list-methods may be used to list target file methods (can be used with filters).\n" 2705 " Example: --list-methods\n" 2706 " Example: --list-methods --class-filter=com.example --method-filter=foo\n" 2707 "\n" 2708 " --symbolize=<file.oat>: output a copy of file.oat with elf symbols included.\n" 2709 " Example: --symbolize=/system/framework/boot.oat\n" 2710 "\n" 2711 " --only-keep-debug<file.oat>: Modifies the behaviour of --symbolize so that\n" 2712 " .rodata and .text sections are omitted in the output file to save space.\n" 2713 " Example: --symbolize=/system/framework/boot.oat --only-keep-debug\n" 2714 "\n" 2715 " --class-filter=<class name>: only dumps classes that contain the filter.\n" 2716 " Example: --class-filter=com.example.foo\n" 2717 "\n" 2718 " --method-filter=<method name>: only dumps methods that contain the filter.\n" 2719 " Example: --method-filter=foo\n" 2720 "\n" 2721 " --export-dex-to=<directory>: may be used to export oat embedded dex files.\n" 2722 " Example: --export-dex-to=/data/local/tmp\n" 2723 "\n" 2724 " --addr2instr=<address>: output matching method disassembled code from relative\n" 2725 " address (e.g. PC from crash dump)\n" 2726 " Example: --addr2instr=0x00001a3b\n" 2727 "\n"; 2728 2729 return usage; 2730 } 2731 2732 public: 2733 const char* oat_filename_ = nullptr; 2734 const char* class_filter_ = ""; 2735 const char* method_filter_ = ""; 2736 const char* image_location_ = nullptr; 2737 std::string elf_filename_prefix_; 2738 bool dump_raw_mapping_table_ = false; 2739 bool dump_raw_gc_map_ = false; 2740 bool dump_vmap_ = true; 2741 bool dump_code_info_stack_maps_ = false; 2742 bool disassemble_code_ = true; 2743 bool symbolize_ = false; 2744 bool only_keep_debug_ = false; 2745 bool list_classes_ = false; 2746 bool list_methods_ = false; 2747 bool dump_header_only_ = false; 2748 uint32_t addr2instr_ = 0; 2749 const char* export_dex_location_ = nullptr; 2750 const char* app_image_ = nullptr; 2751 const char* app_oat_ = nullptr; 2752}; 2753 2754struct OatdumpMain : public CmdlineMain<OatdumpArgs> { 2755 virtual bool NeedsRuntime() OVERRIDE { 2756 CHECK(args_ != nullptr); 2757 2758 // If we are only doing the oat file, disable absolute_addresses. Keep them for image dumping. 2759 bool absolute_addresses = (args_->oat_filename_ == nullptr); 2760 2761 oat_dumper_options_.reset(new OatDumperOptions( 2762 args_->dump_raw_mapping_table_, 2763 args_->dump_raw_gc_map_, 2764 args_->dump_vmap_, 2765 args_->dump_code_info_stack_maps_, 2766 args_->disassemble_code_, 2767 absolute_addresses, 2768 args_->class_filter_, 2769 args_->method_filter_, 2770 args_->list_classes_, 2771 args_->list_methods_, 2772 args_->dump_header_only_, 2773 args_->export_dex_location_, 2774 args_->app_image_, 2775 args_->app_oat_, 2776 args_->addr2instr_)); 2777 2778 return (args_->boot_image_location_ != nullptr || args_->image_location_ != nullptr) && 2779 !args_->symbolize_; 2780 } 2781 2782 virtual bool ExecuteWithoutRuntime() OVERRIDE { 2783 CHECK(args_ != nullptr); 2784 CHECK(args_->oat_filename_ != nullptr); 2785 2786 MemMap::Init(); 2787 2788 if (args_->symbolize_) { 2789 // ELF has special kind of section called SHT_NOBITS which allows us to create 2790 // sections which exist but their data is omitted from the ELF file to save space. 2791 // This is what "strip --only-keep-debug" does when it creates separate ELF file 2792 // with only debug data. We use it in similar way to exclude .rodata and .text. 2793 bool no_bits = args_->only_keep_debug_; 2794 return SymbolizeOat(args_->oat_filename_, args_->output_name_, no_bits) == EXIT_SUCCESS; 2795 } else { 2796 return DumpOat(nullptr, 2797 args_->oat_filename_, 2798 oat_dumper_options_.get(), 2799 args_->os_) == EXIT_SUCCESS; 2800 } 2801 } 2802 2803 virtual bool ExecuteWithRuntime(Runtime* runtime) { 2804 CHECK(args_ != nullptr); 2805 2806 if (args_->oat_filename_ != nullptr) { 2807 return DumpOat(runtime, 2808 args_->oat_filename_, 2809 oat_dumper_options_.get(), 2810 args_->os_) == EXIT_SUCCESS; 2811 } 2812 2813 return DumpImages(runtime, oat_dumper_options_.get(), args_->os_) == EXIT_SUCCESS; 2814 } 2815 2816 std::unique_ptr<OatDumperOptions> oat_dumper_options_; 2817}; 2818 2819} // namespace art 2820 2821int main(int argc, char** argv) { 2822 art::OatdumpMain main; 2823 return main.Main(argc, argv); 2824} 2825