oatdump.cc revision 9c0bce46d93ea443cf4bc0163666475c4f928d73
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 uint32_t entry_point = oat_method.GetCodeOffset() - oat_header.GetExecutableOffset(); 251 // Clear Thumb2 bit. 252 const void* code_address = EntryPointToCodePointer(reinterpret_cast<void*>(entry_point)); 253 254 debug::MethodDebugInfo info = debug::MethodDebugInfo(); 255 info.trampoline_name = nullptr; 256 info.dex_file = &dex_file; 257 info.class_def_index = class_def_index; 258 info.dex_method_index = dex_method_index; 259 info.access_flags = method_access_flags; 260 info.code_item = code_item; 261 info.isa = oat_header.GetInstructionSet(); 262 info.deduped = !seen_offsets_.insert(oat_method.GetCodeOffset()).second; 263 info.is_native_debuggable = oat_header.IsNativeDebuggable(); 264 info.is_optimized = method_header->IsOptimized(); 265 info.is_code_address_text_relative = true; 266 info.code_address = reinterpret_cast<uintptr_t>(code_address); 267 info.code_size = method_header->GetCodeSize(); 268 info.frame_size_in_bytes = method_header->GetFrameSizeInBytes(); 269 info.code_info = info.is_optimized ? method_header->GetOptimizedCodeInfoPtr() : nullptr; 270 info.cfi = ArrayRef<uint8_t>(); 271 method_debug_infos_.push_back(info); 272 } 273 274 private: 275 const OatFile* oat_file_; 276 std::unique_ptr<ElfBuilder<ElfTypes> > builder_; 277 std::vector<debug::MethodDebugInfo> method_debug_infos_; 278 std::unordered_set<uint32_t> seen_offsets_; 279 const std::string output_name_; 280 bool no_bits_; 281}; 282 283class OatDumperOptions { 284 public: 285 OatDumperOptions(bool dump_raw_mapping_table, 286 bool dump_raw_gc_map, 287 bool dump_vmap, 288 bool dump_code_info_stack_maps, 289 bool disassemble_code, 290 bool absolute_addresses, 291 const char* class_filter, 292 const char* method_filter, 293 bool list_classes, 294 bool list_methods, 295 bool dump_header_only, 296 const char* export_dex_location, 297 const char* app_image, 298 const char* app_oat, 299 uint32_t addr2instr) 300 : dump_raw_mapping_table_(dump_raw_mapping_table), 301 dump_raw_gc_map_(dump_raw_gc_map), 302 dump_vmap_(dump_vmap), 303 dump_code_info_stack_maps_(dump_code_info_stack_maps), 304 disassemble_code_(disassemble_code), 305 absolute_addresses_(absolute_addresses), 306 class_filter_(class_filter), 307 method_filter_(method_filter), 308 list_classes_(list_classes), 309 list_methods_(list_methods), 310 dump_header_only_(dump_header_only), 311 export_dex_location_(export_dex_location), 312 app_image_(app_image), 313 app_oat_(app_oat), 314 addr2instr_(addr2instr), 315 class_loader_(nullptr) {} 316 317 const bool dump_raw_mapping_table_; 318 const bool dump_raw_gc_map_; 319 const bool dump_vmap_; 320 const bool dump_code_info_stack_maps_; 321 const bool disassemble_code_; 322 const bool absolute_addresses_; 323 const char* const class_filter_; 324 const char* const method_filter_; 325 const bool list_classes_; 326 const bool list_methods_; 327 const bool dump_header_only_; 328 const char* const export_dex_location_; 329 const char* const app_image_; 330 const char* const app_oat_; 331 uint32_t addr2instr_; 332 Handle<mirror::ClassLoader>* class_loader_; 333}; 334 335class OatDumper { 336 public: 337 OatDumper(const OatFile& oat_file, const OatDumperOptions& options) 338 : oat_file_(oat_file), 339 oat_dex_files_(oat_file.GetOatDexFiles()), 340 options_(options), 341 resolved_addr2instr_(0), 342 instruction_set_(oat_file_.GetOatHeader().GetInstructionSet()), 343 disassembler_(Disassembler::Create(instruction_set_, 344 new DisassemblerOptions(options_.absolute_addresses_, 345 oat_file.Begin(), 346 true /* can_read_literals_ */))) { 347 CHECK(options_.class_loader_ != nullptr); 348 CHECK(options_.class_filter_ != nullptr); 349 CHECK(options_.method_filter_ != nullptr); 350 AddAllOffsets(); 351 } 352 353 ~OatDumper() { 354 delete disassembler_; 355 } 356 357 InstructionSet GetInstructionSet() { 358 return instruction_set_; 359 } 360 361 bool Dump(std::ostream& os) { 362 bool success = true; 363 const OatHeader& oat_header = oat_file_.GetOatHeader(); 364 365 os << "MAGIC:\n"; 366 os << oat_header.GetMagic() << "\n\n"; 367 368 os << "LOCATION:\n"; 369 os << oat_file_.GetLocation() << "\n\n"; 370 371 os << "CHECKSUM:\n"; 372 os << StringPrintf("0x%08x\n\n", oat_header.GetChecksum()); 373 374 os << "INSTRUCTION SET:\n"; 375 os << oat_header.GetInstructionSet() << "\n\n"; 376 377 { 378 std::unique_ptr<const InstructionSetFeatures> features( 379 InstructionSetFeatures::FromBitmap(oat_header.GetInstructionSet(), 380 oat_header.GetInstructionSetFeaturesBitmap())); 381 os << "INSTRUCTION SET FEATURES:\n"; 382 os << features->GetFeatureString() << "\n\n"; 383 } 384 385 os << "DEX FILE COUNT:\n"; 386 os << oat_header.GetDexFileCount() << "\n\n"; 387 388#define DUMP_OAT_HEADER_OFFSET(label, offset) \ 389 os << label " OFFSET:\n"; \ 390 os << StringPrintf("0x%08x", oat_header.offset()); \ 391 if (oat_header.offset() != 0 && options_.absolute_addresses_) { \ 392 os << StringPrintf(" (%p)", oat_file_.Begin() + oat_header.offset()); \ 393 } \ 394 os << StringPrintf("\n\n"); 395 396 DUMP_OAT_HEADER_OFFSET("EXECUTABLE", GetExecutableOffset); 397 DUMP_OAT_HEADER_OFFSET("INTERPRETER TO INTERPRETER BRIDGE", 398 GetInterpreterToInterpreterBridgeOffset); 399 DUMP_OAT_HEADER_OFFSET("INTERPRETER TO COMPILED CODE BRIDGE", 400 GetInterpreterToCompiledCodeBridgeOffset); 401 DUMP_OAT_HEADER_OFFSET("JNI DLSYM LOOKUP", 402 GetJniDlsymLookupOffset); 403 DUMP_OAT_HEADER_OFFSET("QUICK GENERIC JNI TRAMPOLINE", 404 GetQuickGenericJniTrampolineOffset); 405 DUMP_OAT_HEADER_OFFSET("QUICK IMT CONFLICT TRAMPOLINE", 406 GetQuickImtConflictTrampolineOffset); 407 DUMP_OAT_HEADER_OFFSET("QUICK RESOLUTION TRAMPOLINE", 408 GetQuickResolutionTrampolineOffset); 409 DUMP_OAT_HEADER_OFFSET("QUICK TO INTERPRETER BRIDGE", 410 GetQuickToInterpreterBridgeOffset); 411#undef DUMP_OAT_HEADER_OFFSET 412 413 os << "IMAGE PATCH DELTA:\n"; 414 os << StringPrintf("%d (0x%08x)\n\n", 415 oat_header.GetImagePatchDelta(), 416 oat_header.GetImagePatchDelta()); 417 418 os << "IMAGE FILE LOCATION OAT CHECKSUM:\n"; 419 os << StringPrintf("0x%08x\n\n", oat_header.GetImageFileLocationOatChecksum()); 420 421 os << "IMAGE FILE LOCATION OAT BEGIN:\n"; 422 os << StringPrintf("0x%08x\n\n", oat_header.GetImageFileLocationOatDataBegin()); 423 424 // Print the key-value store. 425 { 426 os << "KEY VALUE STORE:\n"; 427 size_t index = 0; 428 const char* key; 429 const char* value; 430 while (oat_header.GetStoreKeyValuePairByIndex(index, &key, &value)) { 431 os << key << " = " << value << "\n"; 432 index++; 433 } 434 os << "\n"; 435 } 436 437 if (options_.absolute_addresses_) { 438 os << "BEGIN:\n"; 439 os << reinterpret_cast<const void*>(oat_file_.Begin()) << "\n\n"; 440 441 os << "END:\n"; 442 os << reinterpret_cast<const void*>(oat_file_.End()) << "\n\n"; 443 } 444 445 os << "SIZE:\n"; 446 os << oat_file_.Size() << "\n\n"; 447 448 os << std::flush; 449 450 // If set, adjust relative address to be searched 451 if (options_.addr2instr_ != 0) { 452 resolved_addr2instr_ = options_.addr2instr_ + oat_header.GetExecutableOffset(); 453 os << "SEARCH ADDRESS (executable offset + input):\n"; 454 os << StringPrintf("0x%08x\n\n", resolved_addr2instr_); 455 } 456 457 if (!options_.dump_header_only_) { 458 for (size_t i = 0; i < oat_dex_files_.size(); i++) { 459 const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i]; 460 CHECK(oat_dex_file != nullptr); 461 462 // If file export selected skip file analysis 463 if (options_.export_dex_location_) { 464 if (!ExportDexFile(os, *oat_dex_file)) { 465 success = false; 466 } 467 } else { 468 if (!DumpOatDexFile(os, *oat_dex_file)) { 469 success = false; 470 } 471 } 472 } 473 } 474 475 os << std::flush; 476 return success; 477 } 478 479 size_t ComputeSize(const void* oat_data) { 480 if (reinterpret_cast<const uint8_t*>(oat_data) < oat_file_.Begin() || 481 reinterpret_cast<const uint8_t*>(oat_data) > oat_file_.End()) { 482 return 0; // Address not in oat file 483 } 484 uintptr_t begin_offset = reinterpret_cast<uintptr_t>(oat_data) - 485 reinterpret_cast<uintptr_t>(oat_file_.Begin()); 486 auto it = offsets_.upper_bound(begin_offset); 487 CHECK(it != offsets_.end()); 488 uintptr_t end_offset = *it; 489 return end_offset - begin_offset; 490 } 491 492 InstructionSet GetOatInstructionSet() { 493 return oat_file_.GetOatHeader().GetInstructionSet(); 494 } 495 496 const void* GetQuickOatCode(ArtMethod* m) SHARED_REQUIRES(Locks::mutator_lock_) { 497 for (size_t i = 0; i < oat_dex_files_.size(); i++) { 498 const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i]; 499 CHECK(oat_dex_file != nullptr); 500 std::string error_msg; 501 const DexFile* const dex_file = OpenDexFile(oat_dex_file, &error_msg); 502 if (dex_file == nullptr) { 503 LOG(WARNING) << "Failed to open dex file '" << oat_dex_file->GetDexFileLocation() 504 << "': " << error_msg; 505 } else { 506 const char* descriptor = m->GetDeclaringClassDescriptor(); 507 const DexFile::ClassDef* class_def = 508 dex_file->FindClassDef(descriptor, ComputeModifiedUtf8Hash(descriptor)); 509 if (class_def != nullptr) { 510 uint16_t class_def_index = dex_file->GetIndexForClassDef(*class_def); 511 const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(class_def_index); 512 size_t method_index = m->GetMethodIndex(); 513 return oat_class.GetOatMethod(method_index).GetQuickCode(); 514 } 515 } 516 } 517 return nullptr; 518 } 519 520 private: 521 void AddAllOffsets() { 522 // We don't know the length of the code for each method, but we need to know where to stop 523 // when disassembling. What we do know is that a region of code will be followed by some other 524 // region, so if we keep a sorted sequence of the start of each region, we can infer the length 525 // of a piece of code by using upper_bound to find the start of the next region. 526 for (size_t i = 0; i < oat_dex_files_.size(); i++) { 527 const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i]; 528 CHECK(oat_dex_file != nullptr); 529 std::string error_msg; 530 const DexFile* const dex_file = OpenDexFile(oat_dex_file, &error_msg); 531 if (dex_file == nullptr) { 532 LOG(WARNING) << "Failed to open dex file '" << oat_dex_file->GetDexFileLocation() 533 << "': " << error_msg; 534 continue; 535 } 536 offsets_.insert(reinterpret_cast<uintptr_t>(&dex_file->GetHeader())); 537 for (size_t class_def_index = 0; 538 class_def_index < dex_file->NumClassDefs(); 539 class_def_index++) { 540 const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index); 541 const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(class_def_index); 542 const uint8_t* class_data = dex_file->GetClassData(class_def); 543 if (class_data != nullptr) { 544 ClassDataItemIterator it(*dex_file, class_data); 545 SkipAllFields(it); 546 uint32_t class_method_index = 0; 547 while (it.HasNextDirectMethod()) { 548 AddOffsets(oat_class.GetOatMethod(class_method_index++)); 549 it.Next(); 550 } 551 while (it.HasNextVirtualMethod()) { 552 AddOffsets(oat_class.GetOatMethod(class_method_index++)); 553 it.Next(); 554 } 555 } 556 } 557 } 558 559 // If the last thing in the file is code for a method, there won't be an offset for the "next" 560 // thing. Instead of having a special case in the upper_bound code, let's just add an entry 561 // for the end of the file. 562 offsets_.insert(oat_file_.Size()); 563 } 564 565 static uint32_t AlignCodeOffset(uint32_t maybe_thumb_offset) { 566 return maybe_thumb_offset & ~0x1; // TODO: Make this Thumb2 specific. 567 } 568 569 void AddOffsets(const OatFile::OatMethod& oat_method) { 570 uint32_t code_offset = oat_method.GetCodeOffset(); 571 if (oat_file_.GetOatHeader().GetInstructionSet() == kThumb2) { 572 code_offset &= ~0x1; 573 } 574 offsets_.insert(code_offset); 575 offsets_.insert(oat_method.GetMappingTableOffset()); 576 offsets_.insert(oat_method.GetVmapTableOffset()); 577 offsets_.insert(oat_method.GetGcMapOffset()); 578 } 579 580 bool DumpOatDexFile(std::ostream& os, const OatFile::OatDexFile& oat_dex_file) { 581 bool success = true; 582 bool stop_analysis = false; 583 os << "OatDexFile:\n"; 584 os << StringPrintf("location: %s\n", oat_dex_file.GetDexFileLocation().c_str()); 585 os << StringPrintf("checksum: 0x%08x\n", oat_dex_file.GetDexFileLocationChecksum()); 586 587 // Create the verifier early. 588 589 std::string error_msg; 590 const DexFile* const dex_file = OpenDexFile(&oat_dex_file, &error_msg); 591 if (dex_file == nullptr) { 592 os << "NOT FOUND: " << error_msg << "\n\n"; 593 os << std::flush; 594 return false; 595 } 596 597 VariableIndentationOutputStream vios(&os); 598 ScopedIndentation indent1(&vios); 599 for (size_t class_def_index = 0; 600 class_def_index < dex_file->NumClassDefs(); 601 class_def_index++) { 602 const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index); 603 const char* descriptor = dex_file->GetClassDescriptor(class_def); 604 605 // TODO: Support regex 606 if (DescriptorToDot(descriptor).find(options_.class_filter_) == std::string::npos) { 607 continue; 608 } 609 610 uint32_t oat_class_offset = oat_dex_file.GetOatClassOffset(class_def_index); 611 const OatFile::OatClass oat_class = oat_dex_file.GetOatClass(class_def_index); 612 os << StringPrintf("%zd: %s (offset=0x%08x) (type_idx=%d)", 613 class_def_index, descriptor, oat_class_offset, class_def.class_idx_) 614 << " (" << oat_class.GetStatus() << ")" 615 << " (" << oat_class.GetType() << ")\n"; 616 // TODO: include bitmap here if type is kOatClassSomeCompiled? 617 if (options_.list_classes_) continue; 618 if (!DumpOatClass(&vios, oat_class, *dex_file, class_def, &stop_analysis)) { 619 success = false; 620 } 621 if (stop_analysis) { 622 os << std::flush; 623 return success; 624 } 625 } 626 627 os << std::flush; 628 return success; 629 } 630 631 bool ExportDexFile(std::ostream& os, const OatFile::OatDexFile& oat_dex_file) { 632 std::string error_msg; 633 std::string dex_file_location = oat_dex_file.GetDexFileLocation(); 634 635 const DexFile* const dex_file = OpenDexFile(&oat_dex_file, &error_msg); 636 if (dex_file == nullptr) { 637 os << "Failed to open dex file '" << dex_file_location << "': " << error_msg; 638 return false; 639 } 640 size_t fsize = oat_dex_file.FileSize(); 641 642 // Some quick checks just in case 643 if (fsize == 0 || fsize < sizeof(DexFile::Header)) { 644 os << "Invalid dex file\n"; 645 return false; 646 } 647 648 // Verify output directory exists 649 if (!OS::DirectoryExists(options_.export_dex_location_)) { 650 // TODO: Extend OS::DirectoryExists if symlink support is required 651 os << options_.export_dex_location_ << " output directory not found or symlink\n"; 652 return false; 653 } 654 655 // Beautify path names 656 if (dex_file_location.size() > PATH_MAX || dex_file_location.size() <= 0) { 657 return false; 658 } 659 660 std::string dex_orig_name; 661 size_t dex_orig_pos = dex_file_location.rfind('/'); 662 if (dex_orig_pos == std::string::npos) 663 dex_orig_name = dex_file_location; 664 else 665 dex_orig_name = dex_file_location.substr(dex_orig_pos + 1); 666 667 // A more elegant approach to efficiently name user installed apps is welcome 668 if (dex_orig_name.size() == 8 && !dex_orig_name.compare("base.apk")) { 669 dex_file_location.erase(dex_orig_pos, strlen("base.apk") + 1); 670 size_t apk_orig_pos = dex_file_location.rfind('/'); 671 if (apk_orig_pos != std::string::npos) { 672 dex_orig_name = dex_file_location.substr(++apk_orig_pos); 673 } 674 } 675 676 std::string out_dex_path(options_.export_dex_location_); 677 if (out_dex_path.back() != '/') { 678 out_dex_path.append("/"); 679 } 680 out_dex_path.append(dex_orig_name); 681 out_dex_path.append("_export.dex"); 682 if (out_dex_path.length() > PATH_MAX) { 683 return false; 684 } 685 686 std::unique_ptr<File> file(OS::CreateEmptyFile(out_dex_path.c_str())); 687 if (file.get() == nullptr) { 688 os << "Failed to open output dex file " << out_dex_path; 689 return false; 690 } 691 692 if (!file->WriteFully(dex_file->Begin(), fsize)) { 693 os << "Failed to write dex file"; 694 file->Erase(); 695 return false; 696 } 697 698 if (file->FlushCloseOrErase() != 0) { 699 os << "Flush and close failed"; 700 return false; 701 } 702 703 os << StringPrintf("Dex file exported at %s (%zd bytes)\n", out_dex_path.c_str(), fsize); 704 os << std::flush; 705 706 return true; 707 } 708 709 static void SkipAllFields(ClassDataItemIterator& it) { 710 while (it.HasNextStaticField()) { 711 it.Next(); 712 } 713 while (it.HasNextInstanceField()) { 714 it.Next(); 715 } 716 } 717 718 bool DumpOatClass(VariableIndentationOutputStream* vios, 719 const OatFile::OatClass& oat_class, const DexFile& dex_file, 720 const DexFile::ClassDef& class_def, bool* stop_analysis) { 721 bool success = true; 722 bool addr_found = false; 723 const uint8_t* class_data = dex_file.GetClassData(class_def); 724 if (class_data == nullptr) { // empty class such as a marker interface? 725 vios->Stream() << std::flush; 726 return success; 727 } 728 ClassDataItemIterator it(dex_file, class_data); 729 SkipAllFields(it); 730 uint32_t class_method_index = 0; 731 while (it.HasNextDirectMethod()) { 732 if (!DumpOatMethod(vios, class_def, class_method_index, oat_class, dex_file, 733 it.GetMemberIndex(), it.GetMethodCodeItem(), 734 it.GetRawMemberAccessFlags(), &addr_found)) { 735 success = false; 736 } 737 if (addr_found) { 738 *stop_analysis = true; 739 return success; 740 } 741 class_method_index++; 742 it.Next(); 743 } 744 while (it.HasNextVirtualMethod()) { 745 if (!DumpOatMethod(vios, class_def, class_method_index, oat_class, dex_file, 746 it.GetMemberIndex(), it.GetMethodCodeItem(), 747 it.GetRawMemberAccessFlags(), &addr_found)) { 748 success = false; 749 } 750 if (addr_found) { 751 *stop_analysis = true; 752 return success; 753 } 754 class_method_index++; 755 it.Next(); 756 } 757 DCHECK(!it.HasNext()); 758 vios->Stream() << std::flush; 759 return success; 760 } 761 762 static constexpr uint32_t kPrologueBytes = 16; 763 764 // When this was picked, the largest arm method was 55,256 bytes and arm64 was 50,412 bytes. 765 static constexpr uint32_t kMaxCodeSize = 100 * 1000; 766 767 bool DumpOatMethod(VariableIndentationOutputStream* vios, 768 const DexFile::ClassDef& class_def, 769 uint32_t class_method_index, 770 const OatFile::OatClass& oat_class, const DexFile& dex_file, 771 uint32_t dex_method_idx, const DexFile::CodeItem* code_item, 772 uint32_t method_access_flags, bool* addr_found) { 773 bool success = true; 774 775 // TODO: Support regex 776 std::string method_name = dex_file.GetMethodName(dex_file.GetMethodId(dex_method_idx)); 777 if (method_name.find(options_.method_filter_) == std::string::npos) { 778 return success; 779 } 780 781 std::string pretty_method = PrettyMethod(dex_method_idx, dex_file, true); 782 vios->Stream() << StringPrintf("%d: %s (dex_method_idx=%d)\n", 783 class_method_index, pretty_method.c_str(), 784 dex_method_idx); 785 if (options_.list_methods_) return success; 786 787 uint32_t oat_method_offsets_offset = oat_class.GetOatMethodOffsetsOffset(class_method_index); 788 const OatMethodOffsets* oat_method_offsets = oat_class.GetOatMethodOffsets(class_method_index); 789 const OatFile::OatMethod oat_method = oat_class.GetOatMethod(class_method_index); 790 uint32_t code_offset = oat_method.GetCodeOffset(); 791 uint32_t code_size = oat_method.GetQuickCodeSize(); 792 if (resolved_addr2instr_ != 0) { 793 if (resolved_addr2instr_ > code_offset + code_size) { 794 return success; 795 } else { 796 *addr_found = true; // stop analyzing file at next iteration 797 } 798 } 799 800 // Everything below is indented at least once. 801 ScopedIndentation indent1(vios); 802 803 { 804 vios->Stream() << "DEX CODE:\n"; 805 ScopedIndentation indent2(vios); 806 DumpDexCode(vios->Stream(), dex_file, code_item); 807 } 808 809 std::unique_ptr<StackHandleScope<1>> hs; 810 std::unique_ptr<verifier::MethodVerifier> verifier; 811 if (Runtime::Current() != nullptr) { 812 // We need to have the handle scope stay live until after the verifier since the verifier has 813 // a handle to the dex cache from hs. 814 hs.reset(new StackHandleScope<1>(Thread::Current())); 815 vios->Stream() << "VERIFIER TYPE ANALYSIS:\n"; 816 ScopedIndentation indent2(vios); 817 verifier.reset(DumpVerifier(vios, hs.get(), 818 dex_method_idx, &dex_file, class_def, code_item, 819 method_access_flags)); 820 } 821 { 822 vios->Stream() << "OatMethodOffsets "; 823 if (options_.absolute_addresses_) { 824 vios->Stream() << StringPrintf("%p ", oat_method_offsets); 825 } 826 vios->Stream() << StringPrintf("(offset=0x%08x)\n", oat_method_offsets_offset); 827 if (oat_method_offsets_offset > oat_file_.Size()) { 828 vios->Stream() << StringPrintf( 829 "WARNING: oat method offsets offset 0x%08x is past end of file 0x%08zx.\n", 830 oat_method_offsets_offset, oat_file_.Size()); 831 // If we can't read OatMethodOffsets, the rest of the data is dangerous to read. 832 vios->Stream() << std::flush; 833 return false; 834 } 835 836 ScopedIndentation indent2(vios); 837 vios->Stream() << StringPrintf("code_offset: 0x%08x ", code_offset); 838 uint32_t aligned_code_begin = AlignCodeOffset(oat_method.GetCodeOffset()); 839 if (aligned_code_begin > oat_file_.Size()) { 840 vios->Stream() << StringPrintf("WARNING: " 841 "code offset 0x%08x is past end of file 0x%08zx.\n", 842 aligned_code_begin, oat_file_.Size()); 843 success = false; 844 } 845 vios->Stream() << "\n"; 846 847 vios->Stream() << "gc_map: "; 848 if (options_.absolute_addresses_) { 849 vios->Stream() << StringPrintf("%p ", oat_method.GetGcMap()); 850 } 851 uint32_t gc_map_offset = oat_method.GetGcMapOffset(); 852 vios->Stream() << StringPrintf("(offset=0x%08x)\n", gc_map_offset); 853 if (gc_map_offset > oat_file_.Size()) { 854 vios->Stream() << StringPrintf("WARNING: " 855 "gc map table offset 0x%08x is past end of file 0x%08zx.\n", 856 gc_map_offset, oat_file_.Size()); 857 success = false; 858 } else if (options_.dump_raw_gc_map_) { 859 ScopedIndentation indent3(vios); 860 DumpGcMap(vios->Stream(), oat_method, code_item); 861 } 862 } 863 { 864 vios->Stream() << "OatQuickMethodHeader "; 865 uint32_t method_header_offset = oat_method.GetOatQuickMethodHeaderOffset(); 866 const OatQuickMethodHeader* method_header = oat_method.GetOatQuickMethodHeader(); 867 868 if (options_.absolute_addresses_) { 869 vios->Stream() << StringPrintf("%p ", method_header); 870 } 871 vios->Stream() << StringPrintf("(offset=0x%08x)\n", method_header_offset); 872 if (method_header_offset > oat_file_.Size()) { 873 vios->Stream() << StringPrintf( 874 "WARNING: oat quick method header offset 0x%08x is past end of file 0x%08zx.\n", 875 method_header_offset, oat_file_.Size()); 876 // If we can't read the OatQuickMethodHeader, the rest of the data is dangerous to read. 877 vios->Stream() << std::flush; 878 return false; 879 } 880 881 ScopedIndentation indent2(vios); 882 vios->Stream() << "mapping_table: "; 883 if (options_.absolute_addresses_) { 884 vios->Stream() << StringPrintf("%p ", oat_method.GetMappingTable()); 885 } 886 uint32_t mapping_table_offset = oat_method.GetMappingTableOffset(); 887 vios->Stream() << StringPrintf("(offset=0x%08x)\n", oat_method.GetMappingTableOffset()); 888 if (mapping_table_offset > oat_file_.Size()) { 889 vios->Stream() << StringPrintf("WARNING: " 890 "mapping table offset 0x%08x is past end of file 0x%08zx. " 891 "mapping table offset was loaded from offset 0x%08x.\n", 892 mapping_table_offset, oat_file_.Size(), 893 oat_method.GetMappingTableOffsetOffset()); 894 success = false; 895 } else if (options_.dump_raw_mapping_table_) { 896 ScopedIndentation indent3(vios); 897 DumpMappingTable(vios, oat_method); 898 } 899 900 vios->Stream() << "vmap_table: "; 901 if (options_.absolute_addresses_) { 902 vios->Stream() << StringPrintf("%p ", oat_method.GetVmapTable()); 903 } 904 uint32_t vmap_table_offset = oat_method.GetVmapTableOffset(); 905 vios->Stream() << StringPrintf("(offset=0x%08x)\n", vmap_table_offset); 906 if (vmap_table_offset > oat_file_.Size()) { 907 vios->Stream() << StringPrintf("WARNING: " 908 "vmap table offset 0x%08x is past end of file 0x%08zx. " 909 "vmap table offset was loaded from offset 0x%08x.\n", 910 vmap_table_offset, oat_file_.Size(), 911 oat_method.GetVmapTableOffsetOffset()); 912 success = false; 913 } else if (options_.dump_vmap_) { 914 DumpVmapData(vios, oat_method, code_item); 915 } 916 } 917 { 918 vios->Stream() << "QuickMethodFrameInfo\n"; 919 920 ScopedIndentation indent2(vios); 921 vios->Stream() 922 << StringPrintf("frame_size_in_bytes: %zd\n", oat_method.GetFrameSizeInBytes()); 923 vios->Stream() << StringPrintf("core_spill_mask: 0x%08x ", oat_method.GetCoreSpillMask()); 924 DumpSpillMask(vios->Stream(), oat_method.GetCoreSpillMask(), false); 925 vios->Stream() << "\n"; 926 vios->Stream() << StringPrintf("fp_spill_mask: 0x%08x ", oat_method.GetFpSpillMask()); 927 DumpSpillMask(vios->Stream(), oat_method.GetFpSpillMask(), true); 928 vios->Stream() << "\n"; 929 } 930 { 931 // Based on spill masks from QuickMethodFrameInfo so placed 932 // after it is dumped, but useful for understanding quick 933 // code, so dumped here. 934 ScopedIndentation indent2(vios); 935 DumpVregLocations(vios->Stream(), oat_method, code_item); 936 } 937 { 938 vios->Stream() << "CODE: "; 939 uint32_t code_size_offset = oat_method.GetQuickCodeSizeOffset(); 940 if (code_size_offset > oat_file_.Size()) { 941 ScopedIndentation indent2(vios); 942 vios->Stream() << StringPrintf("WARNING: " 943 "code size offset 0x%08x is past end of file 0x%08zx.", 944 code_size_offset, oat_file_.Size()); 945 success = false; 946 } else { 947 const void* code = oat_method.GetQuickCode(); 948 uint32_t aligned_code_begin = AlignCodeOffset(code_offset); 949 uint64_t aligned_code_end = aligned_code_begin + code_size; 950 951 if (options_.absolute_addresses_) { 952 vios->Stream() << StringPrintf("%p ", code); 953 } 954 vios->Stream() << StringPrintf("(code_offset=0x%08x size_offset=0x%08x size=%u)%s\n", 955 code_offset, 956 code_size_offset, 957 code_size, 958 code != nullptr ? "..." : ""); 959 960 ScopedIndentation indent2(vios); 961 if (aligned_code_begin > oat_file_.Size()) { 962 vios->Stream() << StringPrintf("WARNING: " 963 "start of code at 0x%08x is past end of file 0x%08zx.", 964 aligned_code_begin, oat_file_.Size()); 965 success = false; 966 } else if (aligned_code_end > oat_file_.Size()) { 967 vios->Stream() << StringPrintf( 968 "WARNING: " 969 "end of code at 0x%08" PRIx64 " is past end of file 0x%08zx. " 970 "code size is 0x%08x loaded from offset 0x%08x.\n", 971 aligned_code_end, oat_file_.Size(), 972 code_size, code_size_offset); 973 success = false; 974 if (options_.disassemble_code_) { 975 if (code_size_offset + kPrologueBytes <= oat_file_.Size()) { 976 DumpCode(vios, verifier.get(), oat_method, code_item, true, kPrologueBytes); 977 } 978 } 979 } else if (code_size > kMaxCodeSize) { 980 vios->Stream() << StringPrintf( 981 "WARNING: " 982 "code size %d is bigger than max expected threshold of %d. " 983 "code size is 0x%08x loaded from offset 0x%08x.\n", 984 code_size, kMaxCodeSize, 985 code_size, code_size_offset); 986 success = false; 987 if (options_.disassemble_code_) { 988 if (code_size_offset + kPrologueBytes <= oat_file_.Size()) { 989 DumpCode(vios, verifier.get(), oat_method, code_item, true, kPrologueBytes); 990 } 991 } 992 } else if (options_.disassemble_code_) { 993 DumpCode(vios, verifier.get(), oat_method, code_item, !success, 0); 994 } 995 } 996 } 997 vios->Stream() << std::flush; 998 return success; 999 } 1000 1001 void DumpSpillMask(std::ostream& os, uint32_t spill_mask, bool is_float) { 1002 if (spill_mask == 0) { 1003 return; 1004 } 1005 os << "("; 1006 for (size_t i = 0; i < 32; i++) { 1007 if ((spill_mask & (1 << i)) != 0) { 1008 if (is_float) { 1009 os << "fr" << i; 1010 } else { 1011 os << "r" << i; 1012 } 1013 spill_mask ^= 1 << i; // clear bit 1014 if (spill_mask != 0) { 1015 os << ", "; 1016 } else { 1017 break; 1018 } 1019 } 1020 } 1021 os << ")"; 1022 } 1023 1024 // Display data stored at the the vmap offset of an oat method. 1025 void DumpVmapData(VariableIndentationOutputStream* vios, 1026 const OatFile::OatMethod& oat_method, 1027 const DexFile::CodeItem* code_item) { 1028 if (IsMethodGeneratedByOptimizingCompiler(oat_method, code_item)) { 1029 // The optimizing compiler outputs its CodeInfo data in the vmap table. 1030 const void* raw_code_info = oat_method.GetVmapTable(); 1031 if (raw_code_info != nullptr) { 1032 CodeInfo code_info(raw_code_info); 1033 DCHECK(code_item != nullptr); 1034 ScopedIndentation indent1(vios); 1035 DumpCodeInfo(vios, code_info, oat_method, *code_item); 1036 } 1037 } else if (IsMethodGeneratedByDexToDexCompiler(oat_method, code_item)) { 1038 // We don't encode the size in the table, so just emit that we have quickened 1039 // information. 1040 ScopedIndentation indent(vios); 1041 vios->Stream() << "quickened data\n"; 1042 } else { 1043 // Otherwise, display the vmap table. 1044 const uint8_t* raw_table = oat_method.GetVmapTable(); 1045 if (raw_table != nullptr) { 1046 VmapTable vmap_table(raw_table); 1047 DumpVmapTable(vios->Stream(), oat_method, vmap_table); 1048 } 1049 } 1050 } 1051 1052 // Display a CodeInfo object emitted by the optimizing compiler. 1053 void DumpCodeInfo(VariableIndentationOutputStream* vios, 1054 const CodeInfo& code_info, 1055 const OatFile::OatMethod& oat_method, 1056 const DexFile::CodeItem& code_item) { 1057 code_info.Dump(vios, 1058 oat_method.GetCodeOffset(), 1059 code_item.registers_size_, 1060 options_.dump_code_info_stack_maps_); 1061 } 1062 1063 // Display a vmap table. 1064 void DumpVmapTable(std::ostream& os, 1065 const OatFile::OatMethod& oat_method, 1066 const VmapTable& vmap_table) { 1067 bool first = true; 1068 bool processing_fp = false; 1069 uint32_t spill_mask = oat_method.GetCoreSpillMask(); 1070 for (size_t i = 0; i < vmap_table.Size(); i++) { 1071 uint16_t dex_reg = vmap_table[i]; 1072 uint32_t cpu_reg = vmap_table.ComputeRegister(spill_mask, i, 1073 processing_fp ? kFloatVReg : kIntVReg); 1074 os << (first ? "v" : ", v") << dex_reg; 1075 if (!processing_fp) { 1076 os << "/r" << cpu_reg; 1077 } else { 1078 os << "/fr" << cpu_reg; 1079 } 1080 first = false; 1081 if (!processing_fp && dex_reg == 0xFFFF) { 1082 processing_fp = true; 1083 spill_mask = oat_method.GetFpSpillMask(); 1084 } 1085 } 1086 os << "\n"; 1087 } 1088 1089 void DumpVregLocations(std::ostream& os, const OatFile::OatMethod& oat_method, 1090 const DexFile::CodeItem* code_item) { 1091 if (code_item != nullptr) { 1092 size_t num_locals_ins = code_item->registers_size_; 1093 size_t num_ins = code_item->ins_size_; 1094 size_t num_locals = num_locals_ins - num_ins; 1095 size_t num_outs = code_item->outs_size_; 1096 1097 os << "vr_stack_locations:"; 1098 for (size_t reg = 0; reg <= num_locals_ins; reg++) { 1099 // For readability, delimit the different kinds of VRs. 1100 if (reg == num_locals_ins) { 1101 os << "\n\tmethod*:"; 1102 } else if (reg == num_locals && num_ins > 0) { 1103 os << "\n\tins:"; 1104 } else if (reg == 0 && num_locals > 0) { 1105 os << "\n\tlocals:"; 1106 } 1107 1108 uint32_t offset = StackVisitor::GetVRegOffsetFromQuickCode( 1109 code_item, 1110 oat_method.GetCoreSpillMask(), 1111 oat_method.GetFpSpillMask(), 1112 oat_method.GetFrameSizeInBytes(), 1113 reg, 1114 GetInstructionSet()); 1115 os << " v" << reg << "[sp + #" << offset << "]"; 1116 } 1117 1118 for (size_t out_reg = 0; out_reg < num_outs; out_reg++) { 1119 if (out_reg == 0) { 1120 os << "\n\touts:"; 1121 } 1122 1123 uint32_t offset = StackVisitor::GetOutVROffset(out_reg, GetInstructionSet()); 1124 os << " v" << out_reg << "[sp + #" << offset << "]"; 1125 } 1126 1127 os << "\n"; 1128 } 1129 } 1130 1131 void DescribeVReg(std::ostream& os, const OatFile::OatMethod& oat_method, 1132 const DexFile::CodeItem* code_item, size_t reg, VRegKind kind) { 1133 const uint8_t* raw_table = oat_method.GetVmapTable(); 1134 if (raw_table != nullptr) { 1135 const VmapTable vmap_table(raw_table); 1136 uint32_t vmap_offset; 1137 if (vmap_table.IsInContext(reg, kind, &vmap_offset)) { 1138 bool is_float = (kind == kFloatVReg) || (kind == kDoubleLoVReg) || (kind == kDoubleHiVReg); 1139 uint32_t spill_mask = is_float ? oat_method.GetFpSpillMask() 1140 : oat_method.GetCoreSpillMask(); 1141 os << (is_float ? "fr" : "r") << vmap_table.ComputeRegister(spill_mask, vmap_offset, kind); 1142 } else { 1143 uint32_t offset = StackVisitor::GetVRegOffsetFromQuickCode( 1144 code_item, 1145 oat_method.GetCoreSpillMask(), 1146 oat_method.GetFpSpillMask(), 1147 oat_method.GetFrameSizeInBytes(), 1148 reg, 1149 GetInstructionSet()); 1150 os << "[sp + #" << offset << "]"; 1151 } 1152 } 1153 } 1154 1155 void DumpGcMapRegisters(std::ostream& os, const OatFile::OatMethod& oat_method, 1156 const DexFile::CodeItem* code_item, 1157 size_t num_regs, const uint8_t* reg_bitmap) { 1158 bool first = true; 1159 for (size_t reg = 0; reg < num_regs; reg++) { 1160 if (((reg_bitmap[reg / 8] >> (reg % 8)) & 0x01) != 0) { 1161 if (first) { 1162 os << " v" << reg << " ("; 1163 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 1164 os << ")"; 1165 first = false; 1166 } else { 1167 os << ", v" << reg << " ("; 1168 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 1169 os << ")"; 1170 } 1171 } 1172 } 1173 if (first) { 1174 os << "No registers in GC map\n"; 1175 } else { 1176 os << "\n"; 1177 } 1178 } 1179 void DumpGcMap(std::ostream& os, const OatFile::OatMethod& oat_method, 1180 const DexFile::CodeItem* code_item) { 1181 const uint8_t* gc_map_raw = oat_method.GetGcMap(); 1182 if (gc_map_raw == nullptr) { 1183 return; // No GC map. 1184 } 1185 const void* quick_code = oat_method.GetQuickCode(); 1186 NativePcOffsetToReferenceMap map(gc_map_raw); 1187 for (size_t entry = 0; entry < map.NumEntries(); entry++) { 1188 const uint8_t* native_pc = reinterpret_cast<const uint8_t*>(quick_code) + 1189 map.GetNativePcOffset(entry); 1190 os << StringPrintf("%p", native_pc); 1191 DumpGcMapRegisters(os, oat_method, code_item, map.RegWidth() * 8, map.GetBitMap(entry)); 1192 } 1193 } 1194 1195 void DumpMappingTable(VariableIndentationOutputStream* vios, 1196 const OatFile::OatMethod& oat_method) { 1197 const void* quick_code = oat_method.GetQuickCode(); 1198 if (quick_code == nullptr) { 1199 return; 1200 } 1201 MappingTable table(oat_method.GetMappingTable()); 1202 if (table.TotalSize() != 0) { 1203 if (table.PcToDexSize() != 0) { 1204 typedef MappingTable::PcToDexIterator It; 1205 vios->Stream() << "suspend point mappings {\n"; 1206 for (It cur = table.PcToDexBegin(), end = table.PcToDexEnd(); cur != end; ++cur) { 1207 ScopedIndentation indent1(vios); 1208 vios->Stream() << StringPrintf("0x%04x -> 0x%04x\n", cur.NativePcOffset(), cur.DexPc()); 1209 } 1210 vios->Stream() << "}\n"; 1211 } 1212 if (table.DexToPcSize() != 0) { 1213 typedef MappingTable::DexToPcIterator It; 1214 vios->Stream() << "catch entry mappings {\n"; 1215 for (It cur = table.DexToPcBegin(), end = table.DexToPcEnd(); cur != end; ++cur) { 1216 ScopedIndentation indent1(vios); 1217 vios->Stream() << StringPrintf("0x%04x -> 0x%04x\n", cur.NativePcOffset(), cur.DexPc()); 1218 } 1219 vios->Stream() << "}\n"; 1220 } 1221 } 1222 } 1223 1224 uint32_t DumpInformationAtOffset(VariableIndentationOutputStream* vios, 1225 const OatFile::OatMethod& oat_method, 1226 const DexFile::CodeItem* code_item, 1227 size_t offset, 1228 bool suspend_point_mapping) { 1229 if (IsMethodGeneratedByOptimizingCompiler(oat_method, code_item)) { 1230 if (suspend_point_mapping) { 1231 ScopedIndentation indent1(vios); 1232 DumpDexRegisterMapAtOffset(vios, oat_method, code_item, offset); 1233 } 1234 // The return value is not used in the case of a method compiled 1235 // with the optimizing compiler. 1236 return DexFile::kDexNoIndex; 1237 } else { 1238 return DumpMappingAtOffset(vios->Stream(), oat_method, offset, suspend_point_mapping); 1239 } 1240 } 1241 1242 uint32_t DumpMappingAtOffset(std::ostream& os, const OatFile::OatMethod& oat_method, 1243 size_t offset, bool suspend_point_mapping) { 1244 MappingTable table(oat_method.GetMappingTable()); 1245 if (suspend_point_mapping && table.PcToDexSize() > 0) { 1246 typedef MappingTable::PcToDexIterator It; 1247 for (It cur = table.PcToDexBegin(), end = table.PcToDexEnd(); cur != end; ++cur) { 1248 if (offset == cur.NativePcOffset()) { 1249 os << StringPrintf("suspend point dex PC: 0x%04x\n", cur.DexPc()); 1250 return cur.DexPc(); 1251 } 1252 } 1253 } else if (!suspend_point_mapping && table.DexToPcSize() > 0) { 1254 typedef MappingTable::DexToPcIterator It; 1255 for (It cur = table.DexToPcBegin(), end = table.DexToPcEnd(); cur != end; ++cur) { 1256 if (offset == cur.NativePcOffset()) { 1257 os << StringPrintf("catch entry dex PC: 0x%04x\n", cur.DexPc()); 1258 return cur.DexPc(); 1259 } 1260 } 1261 } 1262 return DexFile::kDexNoIndex; 1263 } 1264 1265 void DumpGcMapAtNativePcOffset(std::ostream& os, const OatFile::OatMethod& oat_method, 1266 const DexFile::CodeItem* code_item, size_t native_pc_offset) { 1267 const uint8_t* gc_map_raw = oat_method.GetGcMap(); 1268 if (gc_map_raw != nullptr) { 1269 NativePcOffsetToReferenceMap map(gc_map_raw); 1270 if (map.HasEntry(native_pc_offset)) { 1271 size_t num_regs = map.RegWidth() * 8; 1272 const uint8_t* reg_bitmap = map.FindBitMap(native_pc_offset); 1273 bool first = true; 1274 for (size_t reg = 0; reg < num_regs; reg++) { 1275 if (((reg_bitmap[reg / 8] >> (reg % 8)) & 0x01) != 0) { 1276 if (first) { 1277 os << "GC map objects: v" << reg << " ("; 1278 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 1279 os << ")"; 1280 first = false; 1281 } else { 1282 os << ", v" << reg << " ("; 1283 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 1284 os << ")"; 1285 } 1286 } 1287 } 1288 if (!first) { 1289 os << "\n"; 1290 } 1291 } 1292 } 1293 } 1294 1295 void DumpVRegsAtDexPc(std::ostream& os, verifier::MethodVerifier* verifier, 1296 const OatFile::OatMethod& oat_method, 1297 const DexFile::CodeItem* code_item, uint32_t dex_pc) { 1298 DCHECK(verifier != nullptr); 1299 std::vector<int32_t> kinds = verifier->DescribeVRegs(dex_pc); 1300 bool first = true; 1301 for (size_t reg = 0; reg < code_item->registers_size_; reg++) { 1302 VRegKind kind = static_cast<VRegKind>(kinds.at(reg * 2)); 1303 if (kind != kUndefined) { 1304 if (first) { 1305 os << "VRegs: v"; 1306 first = false; 1307 } else { 1308 os << ", v"; 1309 } 1310 os << reg << " ("; 1311 switch (kind) { 1312 case kImpreciseConstant: 1313 os << "Imprecise Constant: " << kinds.at((reg * 2) + 1) << ", "; 1314 DescribeVReg(os, oat_method, code_item, reg, kind); 1315 break; 1316 case kConstant: 1317 os << "Constant: " << kinds.at((reg * 2) + 1); 1318 break; 1319 default: 1320 DescribeVReg(os, oat_method, code_item, reg, kind); 1321 break; 1322 } 1323 os << ")"; 1324 } 1325 } 1326 if (!first) { 1327 os << "\n"; 1328 } 1329 } 1330 1331 1332 void DumpDexCode(std::ostream& os, const DexFile& dex_file, const DexFile::CodeItem* code_item) { 1333 if (code_item != nullptr) { 1334 size_t i = 0; 1335 while (i < code_item->insns_size_in_code_units_) { 1336 const Instruction* instruction = Instruction::At(&code_item->insns_[i]); 1337 os << StringPrintf("0x%04zx: ", i) << instruction->DumpHexLE(5) 1338 << StringPrintf("\t| %s\n", instruction->DumpString(&dex_file).c_str()); 1339 i += instruction->SizeInCodeUnits(); 1340 } 1341 } 1342 } 1343 1344 // Has `oat_method` -- corresponding to the Dex `code_item` -- been compiled by 1345 // the optimizing compiler? 1346 static bool IsMethodGeneratedByOptimizingCompiler(const OatFile::OatMethod& oat_method, 1347 const DexFile::CodeItem* code_item) { 1348 // If the native GC map is null and the Dex `code_item` is not 1349 // null, then this method has been compiled with the optimizing 1350 // compiler. 1351 return oat_method.GetQuickCode() != nullptr && 1352 oat_method.GetGcMap() == nullptr && 1353 code_item != nullptr; 1354 } 1355 1356 // Has `oat_method` -- corresponding to the Dex `code_item` -- been compiled by 1357 // the dextodex compiler? 1358 static bool IsMethodGeneratedByDexToDexCompiler(const OatFile::OatMethod& oat_method, 1359 const DexFile::CodeItem* code_item) { 1360 // If the quick code is null, the Dex `code_item` is not 1361 // null, and the vmap table is not null, then this method has been compiled 1362 // with the dextodex compiler. 1363 return oat_method.GetQuickCode() == nullptr && 1364 oat_method.GetVmapTable() != nullptr && 1365 code_item != nullptr; 1366 } 1367 1368 void DumpDexRegisterMapAtOffset(VariableIndentationOutputStream* vios, 1369 const OatFile::OatMethod& oat_method, 1370 const DexFile::CodeItem* code_item, 1371 size_t offset) { 1372 // This method is only relevant for oat methods compiled with the 1373 // optimizing compiler. 1374 DCHECK(IsMethodGeneratedByOptimizingCompiler(oat_method, code_item)); 1375 1376 // The optimizing compiler outputs its CodeInfo data in the vmap table. 1377 const void* raw_code_info = oat_method.GetVmapTable(); 1378 if (raw_code_info != nullptr) { 1379 CodeInfo code_info(raw_code_info); 1380 StackMapEncoding encoding = code_info.ExtractEncoding(); 1381 StackMap stack_map = code_info.GetStackMapForNativePcOffset(offset, encoding); 1382 if (stack_map.IsValid()) { 1383 stack_map.Dump(vios, code_info, encoding, oat_method.GetCodeOffset(), 1384 code_item->registers_size_); 1385 } 1386 } 1387 } 1388 1389 verifier::MethodVerifier* DumpVerifier(VariableIndentationOutputStream* vios, 1390 StackHandleScope<1>* hs, 1391 uint32_t dex_method_idx, 1392 const DexFile* dex_file, 1393 const DexFile::ClassDef& class_def, 1394 const DexFile::CodeItem* code_item, 1395 uint32_t method_access_flags) { 1396 if ((method_access_flags & kAccNative) == 0) { 1397 ScopedObjectAccess soa(Thread::Current()); 1398 Runtime* const runtime = Runtime::Current(); 1399 Handle<mirror::DexCache> dex_cache( 1400 hs->NewHandle(runtime->GetClassLinker()->RegisterDexFile(*dex_file, 1401 runtime->GetLinearAlloc()))); 1402 DCHECK(options_.class_loader_ != nullptr); 1403 return verifier::MethodVerifier::VerifyMethodAndDump( 1404 soa.Self(), vios, dex_method_idx, dex_file, dex_cache, *options_.class_loader_, 1405 &class_def, code_item, nullptr, method_access_flags); 1406 } 1407 1408 return nullptr; 1409 } 1410 1411 void DumpCode(VariableIndentationOutputStream* vios, 1412 verifier::MethodVerifier* verifier, 1413 const OatFile::OatMethod& oat_method, const DexFile::CodeItem* code_item, 1414 bool bad_input, size_t code_size) { 1415 const void* quick_code = oat_method.GetQuickCode(); 1416 1417 if (code_size == 0) { 1418 code_size = oat_method.GetQuickCodeSize(); 1419 } 1420 if (code_size == 0 || quick_code == nullptr) { 1421 vios->Stream() << "NO CODE!\n"; 1422 return; 1423 } else { 1424 const uint8_t* quick_native_pc = reinterpret_cast<const uint8_t*>(quick_code); 1425 size_t offset = 0; 1426 while (offset < code_size) { 1427 if (!bad_input) { 1428 DumpInformationAtOffset(vios, oat_method, code_item, offset, false); 1429 } 1430 offset += disassembler_->Dump(vios->Stream(), quick_native_pc + offset); 1431 if (!bad_input) { 1432 uint32_t dex_pc = 1433 DumpInformationAtOffset(vios, oat_method, code_item, offset, true); 1434 if (dex_pc != DexFile::kDexNoIndex) { 1435 DumpGcMapAtNativePcOffset(vios->Stream(), oat_method, code_item, offset); 1436 if (verifier != nullptr) { 1437 DumpVRegsAtDexPc(vios->Stream(), verifier, oat_method, code_item, dex_pc); 1438 } 1439 } 1440 } 1441 } 1442 } 1443 } 1444 1445 const OatFile& oat_file_; 1446 const std::vector<const OatFile::OatDexFile*> oat_dex_files_; 1447 const OatDumperOptions& options_; 1448 uint32_t resolved_addr2instr_; 1449 InstructionSet instruction_set_; 1450 std::set<uintptr_t> offsets_; 1451 Disassembler* disassembler_; 1452}; 1453 1454class ImageDumper { 1455 public: 1456 ImageDumper(std::ostream* os, 1457 gc::space::ImageSpace& image_space, 1458 const ImageHeader& image_header, 1459 OatDumperOptions* oat_dumper_options) 1460 : os_(os), 1461 vios_(os), 1462 indent1_(&vios_), 1463 image_space_(image_space), 1464 image_header_(image_header), 1465 oat_dumper_options_(oat_dumper_options) {} 1466 1467 bool Dump() SHARED_REQUIRES(Locks::mutator_lock_) { 1468 std::ostream& os = *os_; 1469 std::ostream& indent_os = vios_.Stream(); 1470 1471 os << "MAGIC: " << image_header_.GetMagic() << "\n\n"; 1472 1473 os << "IMAGE LOCATION: " << image_space_.GetImageLocation() << "\n\n"; 1474 1475 os << "IMAGE BEGIN: " << reinterpret_cast<void*>(image_header_.GetImageBegin()) << "\n\n"; 1476 1477 os << "IMAGE SIZE: " << image_header_.GetImageSize() << "\n\n"; 1478 1479 for (size_t i = 0; i < ImageHeader::kSectionCount; ++i) { 1480 auto section = static_cast<ImageHeader::ImageSections>(i); 1481 os << "IMAGE SECTION " << section << ": " << image_header_.GetImageSection(section) << "\n\n"; 1482 } 1483 1484 os << "OAT CHECKSUM: " << StringPrintf("0x%08x\n\n", image_header_.GetOatChecksum()); 1485 1486 os << "OAT FILE BEGIN:" << reinterpret_cast<void*>(image_header_.GetOatFileBegin()) << "\n\n"; 1487 1488 os << "OAT DATA BEGIN:" << reinterpret_cast<void*>(image_header_.GetOatDataBegin()) << "\n\n"; 1489 1490 os << "OAT DATA END:" << reinterpret_cast<void*>(image_header_.GetOatDataEnd()) << "\n\n"; 1491 1492 os << "OAT FILE END:" << reinterpret_cast<void*>(image_header_.GetOatFileEnd()) << "\n\n"; 1493 1494 os << "PATCH DELTA:" << image_header_.GetPatchDelta() << "\n\n"; 1495 1496 os << "COMPILE PIC: " << (image_header_.CompilePic() ? "yes" : "no") << "\n\n"; 1497 1498 { 1499 os << "ROOTS: " << reinterpret_cast<void*>(image_header_.GetImageRoots()) << "\n"; 1500 static_assert(arraysize(image_roots_descriptions_) == 1501 static_cast<size_t>(ImageHeader::kImageRootsMax), "sizes must match"); 1502 for (int i = 0; i < ImageHeader::kImageRootsMax; i++) { 1503 ImageHeader::ImageRoot image_root = static_cast<ImageHeader::ImageRoot>(i); 1504 const char* image_root_description = image_roots_descriptions_[i]; 1505 mirror::Object* image_root_object = image_header_.GetImageRoot(image_root); 1506 indent_os << StringPrintf("%s: %p\n", image_root_description, image_root_object); 1507 if (image_root_object->IsObjectArray()) { 1508 mirror::ObjectArray<mirror::Object>* image_root_object_array 1509 = image_root_object->AsObjectArray<mirror::Object>(); 1510 ScopedIndentation indent2(&vios_); 1511 for (int j = 0; j < image_root_object_array->GetLength(); j++) { 1512 mirror::Object* value = image_root_object_array->Get(j); 1513 size_t run = 0; 1514 for (int32_t k = j + 1; k < image_root_object_array->GetLength(); k++) { 1515 if (value == image_root_object_array->Get(k)) { 1516 run++; 1517 } else { 1518 break; 1519 } 1520 } 1521 if (run == 0) { 1522 indent_os << StringPrintf("%d: ", j); 1523 } else { 1524 indent_os << StringPrintf("%d to %zd: ", j, j + run); 1525 j = j + run; 1526 } 1527 if (value != nullptr) { 1528 PrettyObjectValue(indent_os, value->GetClass(), value); 1529 } else { 1530 indent_os << j << ": null\n"; 1531 } 1532 } 1533 } 1534 } 1535 } 1536 1537 { 1538 os << "METHOD ROOTS\n"; 1539 static_assert(arraysize(image_methods_descriptions_) == 1540 static_cast<size_t>(ImageHeader::kImageMethodsCount), "sizes must match"); 1541 for (int i = 0; i < ImageHeader::kImageMethodsCount; i++) { 1542 auto image_root = static_cast<ImageHeader::ImageMethod>(i); 1543 const char* description = image_methods_descriptions_[i]; 1544 auto* image_method = image_header_.GetImageMethod(image_root); 1545 indent_os << StringPrintf("%s: %p\n", description, image_method); 1546 } 1547 } 1548 os << "\n"; 1549 1550 Runtime* const runtime = Runtime::Current(); 1551 ClassLinker* class_linker = runtime->GetClassLinker(); 1552 std::string image_filename = image_space_.GetImageFilename(); 1553 std::string oat_location = ImageHeader::GetOatLocationFromImageLocation(image_filename); 1554 os << "OAT LOCATION: " << oat_location; 1555 os << "\n"; 1556 std::string error_msg; 1557 const OatFile* oat_file = image_space_.GetOatFile(); 1558 if (oat_file == nullptr) { 1559 oat_file = runtime->GetOatFileManager().FindOpenedOatFileFromOatLocation(oat_location); 1560 } 1561 if (oat_file == nullptr) { 1562 oat_file = OatFile::Open(oat_location, 1563 oat_location, 1564 nullptr, 1565 nullptr, 1566 false, 1567 /*low_4gb*/false, 1568 nullptr, 1569 &error_msg); 1570 } 1571 if (oat_file == nullptr) { 1572 os << "OAT FILE NOT FOUND: " << error_msg << "\n"; 1573 return EXIT_FAILURE; 1574 } 1575 os << "\n"; 1576 1577 stats_.oat_file_bytes = oat_file->Size(); 1578 1579 oat_dumper_.reset(new OatDumper(*oat_file, *oat_dumper_options_)); 1580 1581 for (const OatFile::OatDexFile* oat_dex_file : oat_file->GetOatDexFiles()) { 1582 CHECK(oat_dex_file != nullptr); 1583 stats_.oat_dex_file_sizes.push_back(std::make_pair(oat_dex_file->GetDexFileLocation(), 1584 oat_dex_file->FileSize())); 1585 } 1586 1587 os << "OBJECTS:\n" << std::flush; 1588 1589 // Loop through the image space and dump its objects. 1590 gc::Heap* heap = runtime->GetHeap(); 1591 Thread* self = Thread::Current(); 1592 { 1593 { 1594 WriterMutexLock mu(self, *Locks::heap_bitmap_lock_); 1595 heap->FlushAllocStack(); 1596 } 1597 // Since FlushAllocStack() above resets the (active) allocation 1598 // stack. Need to revoke the thread-local allocation stacks that 1599 // point into it. 1600 ScopedThreadSuspension sts(self, kNative); 1601 ScopedSuspendAll ssa(__FUNCTION__); 1602 heap->RevokeAllThreadLocalAllocationStacks(self); 1603 } 1604 { 1605 // Mark dex caches. 1606 dex_caches_.clear(); 1607 { 1608 ReaderMutexLock mu(self, *class_linker->DexLock()); 1609 for (const ClassLinker::DexCacheData& data : class_linker->GetDexCachesData()) { 1610 mirror::DexCache* dex_cache = 1611 down_cast<mirror::DexCache*>(self->DecodeJObject(data.weak_root)); 1612 if (dex_cache != nullptr) { 1613 dex_caches_.insert(dex_cache); 1614 } 1615 } 1616 } 1617 ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_); 1618 // Dump the normal objects before ArtMethods. 1619 image_space_.GetLiveBitmap()->Walk(ImageDumper::Callback, this); 1620 indent_os << "\n"; 1621 // TODO: Dump fields. 1622 // Dump methods after. 1623 const auto& methods_section = image_header_.GetMethodsSection(); 1624 DumpArtMethodVisitor visitor(this); 1625 methods_section.VisitPackedArtMethods(&visitor, 1626 image_space_.Begin(), 1627 image_header_.GetPointerSize()); 1628 // Dump the large objects separately. 1629 heap->GetLargeObjectsSpace()->GetLiveBitmap()->Walk(ImageDumper::Callback, this); 1630 indent_os << "\n"; 1631 } 1632 os << "STATS:\n" << std::flush; 1633 std::unique_ptr<File> file(OS::OpenFileForReading(image_filename.c_str())); 1634 size_t data_size = image_header_.GetDataSize(); // stored size in file. 1635 if (file == nullptr) { 1636 LOG(WARNING) << "Failed to find image in " << image_filename; 1637 } else { 1638 stats_.file_bytes = file->GetLength(); 1639 // If the image is compressed, adjust to decompressed size. 1640 size_t uncompressed_size = image_header_.GetImageSize() - sizeof(ImageHeader); 1641 if (image_header_.GetStorageMode() == ImageHeader::kStorageModeUncompressed) { 1642 DCHECK_EQ(uncompressed_size, data_size) << "Sizes should match for uncompressed image"; 1643 } 1644 stats_.file_bytes += uncompressed_size - data_size; 1645 } 1646 size_t header_bytes = sizeof(ImageHeader); 1647 const auto& object_section = image_header_.GetImageSection(ImageHeader::kSectionObjects); 1648 const auto& field_section = image_header_.GetImageSection(ImageHeader::kSectionArtFields); 1649 const auto& method_section = image_header_.GetMethodsSection(); 1650 const auto& dex_cache_arrays_section = image_header_.GetImageSection( 1651 ImageHeader::kSectionDexCacheArrays); 1652 const auto& intern_section = image_header_.GetImageSection( 1653 ImageHeader::kSectionInternedStrings); 1654 const auto& class_table_section = image_header_.GetImageSection( 1655 ImageHeader::kSectionClassTable); 1656 const auto& bitmap_section = image_header_.GetImageSection(ImageHeader::kSectionImageBitmap); 1657 1658 stats_.header_bytes = header_bytes; 1659 1660 // Objects are kObjectAlignment-aligned. 1661 // CHECK_EQ(RoundUp(header_bytes, kObjectAlignment), object_section.Offset()); 1662 if (object_section.Offset() > header_bytes) { 1663 stats_.alignment_bytes += object_section.Offset() - header_bytes; 1664 } 1665 1666 // Field section is 4-byte aligned. 1667 constexpr size_t kFieldSectionAlignment = 4U; 1668 uint32_t end_objects = object_section.Offset() + object_section.Size(); 1669 CHECK_EQ(RoundUp(end_objects, kFieldSectionAlignment), field_section.Offset()); 1670 stats_.alignment_bytes += field_section.Offset() - end_objects; 1671 1672 // Method section is 4/8 byte aligned depending on target. Just check for 4-byte alignment. 1673 uint32_t end_fields = field_section.Offset() + field_section.Size(); 1674 CHECK_ALIGNED(method_section.Offset(), 4); 1675 stats_.alignment_bytes += method_section.Offset() - end_fields; 1676 1677 // Dex cache arrays section is aligned depending on the target. Just check for 4-byte alignment. 1678 uint32_t end_methods = method_section.Offset() + method_section.Size(); 1679 CHECK_ALIGNED(dex_cache_arrays_section.Offset(), 4); 1680 stats_.alignment_bytes += dex_cache_arrays_section.Offset() - end_methods; 1681 1682 // Intern table is 8-byte aligned. 1683 uint32_t end_caches = dex_cache_arrays_section.Offset() + dex_cache_arrays_section.Size(); 1684 CHECK_EQ(RoundUp(end_caches, 8U), intern_section.Offset()); 1685 stats_.alignment_bytes += intern_section.Offset() - end_caches; 1686 1687 // Add space between intern table and class table. 1688 uint32_t end_intern = intern_section.Offset() + intern_section.Size(); 1689 stats_.alignment_bytes += class_table_section.Offset() - end_intern; 1690 1691 // Add space between end of image data and bitmap. Expect the bitmap to be page-aligned. 1692 const size_t bitmap_offset = sizeof(ImageHeader) + data_size; 1693 CHECK_ALIGNED(bitmap_section.Offset(), kPageSize); 1694 stats_.alignment_bytes += RoundUp(bitmap_offset, kPageSize) - bitmap_offset; 1695 1696 stats_.bitmap_bytes += bitmap_section.Size(); 1697 stats_.art_field_bytes += field_section.Size(); 1698 stats_.art_method_bytes += method_section.Size(); 1699 stats_.dex_cache_arrays_bytes += dex_cache_arrays_section.Size(); 1700 stats_.interned_strings_bytes += intern_section.Size(); 1701 stats_.class_table_bytes += class_table_section.Size(); 1702 stats_.Dump(os, indent_os); 1703 os << "\n"; 1704 1705 os << std::flush; 1706 1707 return oat_dumper_->Dump(os); 1708 } 1709 1710 private: 1711 class DumpArtMethodVisitor : public ArtMethodVisitor { 1712 public: 1713 explicit DumpArtMethodVisitor(ImageDumper* image_dumper) : image_dumper_(image_dumper) {} 1714 1715 virtual void Visit(ArtMethod* method) OVERRIDE SHARED_REQUIRES(Locks::mutator_lock_) { 1716 std::ostream& indent_os = image_dumper_->vios_.Stream(); 1717 indent_os << method << " " << " ArtMethod: " << PrettyMethod(method) << "\n"; 1718 image_dumper_->DumpMethod(method, indent_os); 1719 indent_os << "\n"; 1720 } 1721 1722 private: 1723 ImageDumper* const image_dumper_; 1724 }; 1725 1726 static void PrettyObjectValue(std::ostream& os, mirror::Class* type, mirror::Object* value) 1727 SHARED_REQUIRES(Locks::mutator_lock_) { 1728 CHECK(type != nullptr); 1729 if (value == nullptr) { 1730 os << StringPrintf("null %s\n", PrettyDescriptor(type).c_str()); 1731 } else if (type->IsStringClass()) { 1732 mirror::String* string = value->AsString(); 1733 os << StringPrintf("%p String: %s\n", string, 1734 PrintableString(string->ToModifiedUtf8().c_str()).c_str()); 1735 } else if (type->IsClassClass()) { 1736 mirror::Class* klass = value->AsClass(); 1737 os << StringPrintf("%p Class: %s\n", klass, PrettyDescriptor(klass).c_str()); 1738 } else { 1739 os << StringPrintf("%p %s\n", value, PrettyDescriptor(type).c_str()); 1740 } 1741 } 1742 1743 static void PrintField(std::ostream& os, ArtField* field, mirror::Object* obj) 1744 SHARED_REQUIRES(Locks::mutator_lock_) { 1745 os << StringPrintf("%s: ", field->GetName()); 1746 switch (field->GetTypeAsPrimitiveType()) { 1747 case Primitive::kPrimLong: 1748 os << StringPrintf("%" PRId64 " (0x%" PRIx64 ")\n", field->Get64(obj), field->Get64(obj)); 1749 break; 1750 case Primitive::kPrimDouble: 1751 os << StringPrintf("%f (%a)\n", field->GetDouble(obj), field->GetDouble(obj)); 1752 break; 1753 case Primitive::kPrimFloat: 1754 os << StringPrintf("%f (%a)\n", field->GetFloat(obj), field->GetFloat(obj)); 1755 break; 1756 case Primitive::kPrimInt: 1757 os << StringPrintf("%d (0x%x)\n", field->Get32(obj), field->Get32(obj)); 1758 break; 1759 case Primitive::kPrimChar: 1760 os << StringPrintf("%u (0x%x)\n", field->GetChar(obj), field->GetChar(obj)); 1761 break; 1762 case Primitive::kPrimShort: 1763 os << StringPrintf("%d (0x%x)\n", field->GetShort(obj), field->GetShort(obj)); 1764 break; 1765 case Primitive::kPrimBoolean: 1766 os << StringPrintf("%s (0x%x)\n", field->GetBoolean(obj)? "true" : "false", 1767 field->GetBoolean(obj)); 1768 break; 1769 case Primitive::kPrimByte: 1770 os << StringPrintf("%d (0x%x)\n", field->GetByte(obj), field->GetByte(obj)); 1771 break; 1772 case Primitive::kPrimNot: { 1773 // Get the value, don't compute the type unless it is non-null as we don't want 1774 // to cause class loading. 1775 mirror::Object* value = field->GetObj(obj); 1776 if (value == nullptr) { 1777 os << StringPrintf("null %s\n", PrettyDescriptor(field->GetTypeDescriptor()).c_str()); 1778 } else { 1779 // Grab the field type without causing resolution. 1780 mirror::Class* field_type = field->GetType<false>(); 1781 if (field_type != nullptr) { 1782 PrettyObjectValue(os, field_type, value); 1783 } else { 1784 os << StringPrintf("%p %s\n", value, 1785 PrettyDescriptor(field->GetTypeDescriptor()).c_str()); 1786 } 1787 } 1788 break; 1789 } 1790 default: 1791 os << "unexpected field type: " << field->GetTypeDescriptor() << "\n"; 1792 break; 1793 } 1794 } 1795 1796 static void DumpFields(std::ostream& os, mirror::Object* obj, mirror::Class* klass) 1797 SHARED_REQUIRES(Locks::mutator_lock_) { 1798 mirror::Class* super = klass->GetSuperClass(); 1799 if (super != nullptr) { 1800 DumpFields(os, obj, super); 1801 } 1802 for (ArtField& field : klass->GetIFields()) { 1803 PrintField(os, &field, obj); 1804 } 1805 } 1806 1807 bool InDumpSpace(const mirror::Object* object) { 1808 return image_space_.Contains(object); 1809 } 1810 1811 const void* GetQuickOatCodeBegin(ArtMethod* m) SHARED_REQUIRES(Locks::mutator_lock_) { 1812 const void* quick_code = m->GetEntryPointFromQuickCompiledCodePtrSize( 1813 image_header_.GetPointerSize()); 1814 if (Runtime::Current()->GetClassLinker()->IsQuickResolutionStub(quick_code)) { 1815 quick_code = oat_dumper_->GetQuickOatCode(m); 1816 } 1817 if (oat_dumper_->GetInstructionSet() == kThumb2) { 1818 quick_code = reinterpret_cast<void*>(reinterpret_cast<uintptr_t>(quick_code) & ~0x1); 1819 } 1820 return quick_code; 1821 } 1822 1823 uint32_t GetQuickOatCodeSize(ArtMethod* m) 1824 SHARED_REQUIRES(Locks::mutator_lock_) { 1825 const uint32_t* oat_code_begin = reinterpret_cast<const uint32_t*>(GetQuickOatCodeBegin(m)); 1826 if (oat_code_begin == nullptr) { 1827 return 0; 1828 } 1829 return oat_code_begin[-1]; 1830 } 1831 1832 const void* GetQuickOatCodeEnd(ArtMethod* m) 1833 SHARED_REQUIRES(Locks::mutator_lock_) { 1834 const uint8_t* oat_code_begin = reinterpret_cast<const uint8_t*>(GetQuickOatCodeBegin(m)); 1835 if (oat_code_begin == nullptr) { 1836 return nullptr; 1837 } 1838 return oat_code_begin + GetQuickOatCodeSize(m); 1839 } 1840 1841 static void Callback(mirror::Object* obj, void* arg) SHARED_REQUIRES(Locks::mutator_lock_) { 1842 DCHECK(obj != nullptr); 1843 DCHECK(arg != nullptr); 1844 ImageDumper* state = reinterpret_cast<ImageDumper*>(arg); 1845 if (!state->InDumpSpace(obj)) { 1846 return; 1847 } 1848 1849 size_t object_bytes = obj->SizeOf(); 1850 size_t alignment_bytes = RoundUp(object_bytes, kObjectAlignment) - object_bytes; 1851 state->stats_.object_bytes += object_bytes; 1852 state->stats_.alignment_bytes += alignment_bytes; 1853 1854 std::ostream& os = state->vios_.Stream(); 1855 1856 mirror::Class* obj_class = obj->GetClass(); 1857 if (obj_class->IsArrayClass()) { 1858 os << StringPrintf("%p: %s length:%d\n", obj, PrettyDescriptor(obj_class).c_str(), 1859 obj->AsArray()->GetLength()); 1860 } else if (obj->IsClass()) { 1861 mirror::Class* klass = obj->AsClass(); 1862 os << StringPrintf("%p: java.lang.Class \"%s\" (", obj, PrettyDescriptor(klass).c_str()) 1863 << klass->GetStatus() << ")\n"; 1864 } else if (obj_class->IsStringClass()) { 1865 os << StringPrintf("%p: java.lang.String %s\n", obj, 1866 PrintableString(obj->AsString()->ToModifiedUtf8().c_str()).c_str()); 1867 } else { 1868 os << StringPrintf("%p: %s\n", obj, PrettyDescriptor(obj_class).c_str()); 1869 } 1870 ScopedIndentation indent1(&state->vios_); 1871 DumpFields(os, obj, obj_class); 1872 const size_t image_pointer_size = state->image_header_.GetPointerSize(); 1873 if (obj->IsObjectArray()) { 1874 auto* obj_array = obj->AsObjectArray<mirror::Object>(); 1875 for (int32_t i = 0, length = obj_array->GetLength(); i < length; i++) { 1876 mirror::Object* value = obj_array->Get(i); 1877 size_t run = 0; 1878 for (int32_t j = i + 1; j < length; j++) { 1879 if (value == obj_array->Get(j)) { 1880 run++; 1881 } else { 1882 break; 1883 } 1884 } 1885 if (run == 0) { 1886 os << StringPrintf("%d: ", i); 1887 } else { 1888 os << StringPrintf("%d to %zd: ", i, i + run); 1889 i = i + run; 1890 } 1891 mirror::Class* value_class = 1892 (value == nullptr) ? obj_class->GetComponentType() : value->GetClass(); 1893 PrettyObjectValue(os, value_class, value); 1894 } 1895 } else if (obj->IsClass()) { 1896 mirror::Class* klass = obj->AsClass(); 1897 if (klass->NumStaticFields() != 0) { 1898 os << "STATICS:\n"; 1899 ScopedIndentation indent2(&state->vios_); 1900 for (ArtField& field : klass->GetSFields()) { 1901 PrintField(os, &field, field.GetDeclaringClass()); 1902 } 1903 } 1904 } else { 1905 auto it = state->dex_caches_.find(obj); 1906 if (it != state->dex_caches_.end()) { 1907 auto* dex_cache = down_cast<mirror::DexCache*>(obj); 1908 const auto& field_section = state->image_header_.GetImageSection( 1909 ImageHeader::kSectionArtFields); 1910 const auto& method_section = state->image_header_.GetMethodsSection(); 1911 size_t num_methods = dex_cache->NumResolvedMethods(); 1912 if (num_methods != 0u) { 1913 os << "Methods (size=" << num_methods << "):"; 1914 ScopedIndentation indent2(&state->vios_); 1915 auto* resolved_methods = dex_cache->GetResolvedMethods(); 1916 for (size_t i = 0, length = dex_cache->NumResolvedMethods(); i < length; ++i) { 1917 auto* elem = mirror::DexCache::GetElementPtrSize(resolved_methods, 1918 i, 1919 image_pointer_size); 1920 size_t run = 0; 1921 for (size_t j = i + 1; 1922 j != length && elem == mirror::DexCache::GetElementPtrSize(resolved_methods, 1923 j, 1924 image_pointer_size); 1925 ++j, ++run) {} 1926 if (run == 0) { 1927 os << StringPrintf("%zd: ", i); 1928 } else { 1929 os << StringPrintf("%zd to %zd: ", i, i + run); 1930 i = i + run; 1931 } 1932 std::string msg; 1933 if (elem == nullptr) { 1934 msg = "null"; 1935 } else if (method_section.Contains( 1936 reinterpret_cast<uint8_t*>(elem) - state->image_space_.Begin())) { 1937 msg = PrettyMethod(reinterpret_cast<ArtMethod*>(elem)); 1938 } else { 1939 msg = "<not in method section>"; 1940 } 1941 os << StringPrintf("%p %s\n", elem, msg.c_str()); 1942 } 1943 } 1944 size_t num_fields = dex_cache->NumResolvedFields(); 1945 if (num_fields != 0u) { 1946 os << "Fields (size=" << num_fields << "):"; 1947 ScopedIndentation indent2(&state->vios_); 1948 auto* resolved_fields = dex_cache->GetResolvedFields(); 1949 for (size_t i = 0, length = dex_cache->NumResolvedFields(); i < length; ++i) { 1950 auto* elem = mirror::DexCache::GetElementPtrSize(resolved_fields, i, image_pointer_size); 1951 size_t run = 0; 1952 for (size_t j = i + 1; 1953 j != length && elem == mirror::DexCache::GetElementPtrSize(resolved_fields, 1954 j, 1955 image_pointer_size); 1956 ++j, ++run) {} 1957 if (run == 0) { 1958 os << StringPrintf("%zd: ", i); 1959 } else { 1960 os << StringPrintf("%zd to %zd: ", i, i + run); 1961 i = i + run; 1962 } 1963 std::string msg; 1964 if (elem == nullptr) { 1965 msg = "null"; 1966 } else if (field_section.Contains( 1967 reinterpret_cast<uint8_t*>(elem) - state->image_space_.Begin())) { 1968 msg = PrettyField(reinterpret_cast<ArtField*>(elem)); 1969 } else { 1970 msg = "<not in field section>"; 1971 } 1972 os << StringPrintf("%p %s\n", elem, msg.c_str()); 1973 } 1974 } 1975 } 1976 } 1977 std::string temp; 1978 state->stats_.Update(obj_class->GetDescriptor(&temp), object_bytes); 1979 } 1980 1981 void DumpMethod(ArtMethod* method, std::ostream& indent_os) 1982 SHARED_REQUIRES(Locks::mutator_lock_) { 1983 DCHECK(method != nullptr); 1984 const void* quick_oat_code_begin = GetQuickOatCodeBegin(method); 1985 const void* quick_oat_code_end = GetQuickOatCodeEnd(method); 1986 OatQuickMethodHeader* method_header = reinterpret_cast<OatQuickMethodHeader*>( 1987 reinterpret_cast<uintptr_t>(quick_oat_code_begin) - sizeof(OatQuickMethodHeader)); 1988 if (method->IsNative()) { 1989 if (!Runtime::Current()->GetClassLinker()->IsQuickGenericJniStub(quick_oat_code_begin)) { 1990 DCHECK(method_header->GetNativeGcMap() == nullptr) << PrettyMethod(method); 1991 DCHECK(method_header->GetMappingTable() == nullptr) << PrettyMethod(method); 1992 } 1993 bool first_occurrence; 1994 uint32_t quick_oat_code_size = GetQuickOatCodeSize(method); 1995 ComputeOatSize(quick_oat_code_begin, &first_occurrence); 1996 if (first_occurrence) { 1997 stats_.native_to_managed_code_bytes += quick_oat_code_size; 1998 } 1999 if (quick_oat_code_begin != method->GetEntryPointFromQuickCompiledCodePtrSize( 2000 image_header_.GetPointerSize())) { 2001 indent_os << StringPrintf("OAT CODE: %p\n", quick_oat_code_begin); 2002 } 2003 } else if (method->IsAbstract() || 2004 method->IsCalleeSaveMethod() || 2005 method->IsResolutionMethod() || 2006 (method == Runtime::Current()->GetImtConflictMethod()) || 2007 method->IsImtUnimplementedMethod() || 2008 method->IsClassInitializer()) { 2009 // Don't print information for these. 2010 } else { 2011 const DexFile::CodeItem* code_item = method->GetCodeItem(); 2012 size_t dex_instruction_bytes = code_item->insns_size_in_code_units_ * 2; 2013 stats_.dex_instruction_bytes += dex_instruction_bytes; 2014 2015 bool first_occurrence; 2016 size_t gc_map_bytes = ComputeOatSize(method_header->GetNativeGcMap(), &first_occurrence); 2017 if (first_occurrence) { 2018 stats_.gc_map_bytes += gc_map_bytes; 2019 } 2020 2021 size_t pc_mapping_table_bytes = ComputeOatSize( 2022 method_header->GetMappingTable(), &first_occurrence); 2023 if (first_occurrence) { 2024 stats_.pc_mapping_table_bytes += pc_mapping_table_bytes; 2025 } 2026 2027 size_t vmap_table_bytes = 0u; 2028 if (!method_header->IsOptimized()) { 2029 // Method compiled with the optimizing compiler have no vmap table. 2030 vmap_table_bytes = ComputeOatSize(method_header->GetVmapTable(), &first_occurrence); 2031 if (first_occurrence) { 2032 stats_.vmap_table_bytes += vmap_table_bytes; 2033 } 2034 } 2035 2036 uint32_t quick_oat_code_size = GetQuickOatCodeSize(method); 2037 ComputeOatSize(quick_oat_code_begin, &first_occurrence); 2038 if (first_occurrence) { 2039 stats_.managed_code_bytes += quick_oat_code_size; 2040 if (method->IsConstructor()) { 2041 if (method->IsStatic()) { 2042 stats_.class_initializer_code_bytes += quick_oat_code_size; 2043 } else if (dex_instruction_bytes > kLargeConstructorDexBytes) { 2044 stats_.large_initializer_code_bytes += quick_oat_code_size; 2045 } 2046 } else if (dex_instruction_bytes > kLargeMethodDexBytes) { 2047 stats_.large_method_code_bytes += quick_oat_code_size; 2048 } 2049 } 2050 stats_.managed_code_bytes_ignoring_deduplication += quick_oat_code_size; 2051 2052 uint32_t method_access_flags = method->GetAccessFlags(); 2053 2054 indent_os << StringPrintf("OAT CODE: %p-%p\n", quick_oat_code_begin, quick_oat_code_end); 2055 indent_os << StringPrintf("SIZE: Dex Instructions=%zd GC=%zd Mapping=%zd AccessFlags=0x%x\n", 2056 dex_instruction_bytes, gc_map_bytes, pc_mapping_table_bytes, 2057 method_access_flags); 2058 2059 size_t total_size = dex_instruction_bytes + gc_map_bytes + pc_mapping_table_bytes + 2060 vmap_table_bytes + quick_oat_code_size + ArtMethod::Size(image_header_.GetPointerSize()); 2061 2062 double expansion = 2063 static_cast<double>(quick_oat_code_size) / static_cast<double>(dex_instruction_bytes); 2064 stats_.ComputeOutliers(total_size, expansion, method); 2065 } 2066 } 2067 2068 std::set<const void*> already_seen_; 2069 // Compute the size of the given data within the oat file and whether this is the first time 2070 // this data has been requested 2071 size_t ComputeOatSize(const void* oat_data, bool* first_occurrence) { 2072 if (already_seen_.count(oat_data) == 0) { 2073 *first_occurrence = true; 2074 already_seen_.insert(oat_data); 2075 } else { 2076 *first_occurrence = false; 2077 } 2078 return oat_dumper_->ComputeSize(oat_data); 2079 } 2080 2081 public: 2082 struct Stats { 2083 size_t oat_file_bytes; 2084 size_t file_bytes; 2085 2086 size_t header_bytes; 2087 size_t object_bytes; 2088 size_t art_field_bytes; 2089 size_t art_method_bytes; 2090 size_t dex_cache_arrays_bytes; 2091 size_t interned_strings_bytes; 2092 size_t class_table_bytes; 2093 size_t bitmap_bytes; 2094 size_t alignment_bytes; 2095 2096 size_t managed_code_bytes; 2097 size_t managed_code_bytes_ignoring_deduplication; 2098 size_t managed_to_native_code_bytes; 2099 size_t native_to_managed_code_bytes; 2100 size_t class_initializer_code_bytes; 2101 size_t large_initializer_code_bytes; 2102 size_t large_method_code_bytes; 2103 2104 size_t gc_map_bytes; 2105 size_t pc_mapping_table_bytes; 2106 size_t vmap_table_bytes; 2107 2108 size_t dex_instruction_bytes; 2109 2110 std::vector<ArtMethod*> method_outlier; 2111 std::vector<size_t> method_outlier_size; 2112 std::vector<double> method_outlier_expansion; 2113 std::vector<std::pair<std::string, size_t>> oat_dex_file_sizes; 2114 2115 Stats() 2116 : oat_file_bytes(0), 2117 file_bytes(0), 2118 header_bytes(0), 2119 object_bytes(0), 2120 art_field_bytes(0), 2121 art_method_bytes(0), 2122 dex_cache_arrays_bytes(0), 2123 interned_strings_bytes(0), 2124 class_table_bytes(0), 2125 bitmap_bytes(0), 2126 alignment_bytes(0), 2127 managed_code_bytes(0), 2128 managed_code_bytes_ignoring_deduplication(0), 2129 managed_to_native_code_bytes(0), 2130 native_to_managed_code_bytes(0), 2131 class_initializer_code_bytes(0), 2132 large_initializer_code_bytes(0), 2133 large_method_code_bytes(0), 2134 gc_map_bytes(0), 2135 pc_mapping_table_bytes(0), 2136 vmap_table_bytes(0), 2137 dex_instruction_bytes(0) {} 2138 2139 struct SizeAndCount { 2140 SizeAndCount(size_t bytes_in, size_t count_in) : bytes(bytes_in), count(count_in) {} 2141 size_t bytes; 2142 size_t count; 2143 }; 2144 typedef SafeMap<std::string, SizeAndCount> SizeAndCountTable; 2145 SizeAndCountTable sizes_and_counts; 2146 2147 void Update(const char* descriptor, size_t object_bytes_in) { 2148 SizeAndCountTable::iterator it = sizes_and_counts.find(descriptor); 2149 if (it != sizes_and_counts.end()) { 2150 it->second.bytes += object_bytes_in; 2151 it->second.count += 1; 2152 } else { 2153 sizes_and_counts.Put(descriptor, SizeAndCount(object_bytes_in, 1)); 2154 } 2155 } 2156 2157 double PercentOfOatBytes(size_t size) { 2158 return (static_cast<double>(size) / static_cast<double>(oat_file_bytes)) * 100; 2159 } 2160 2161 double PercentOfFileBytes(size_t size) { 2162 return (static_cast<double>(size) / static_cast<double>(file_bytes)) * 100; 2163 } 2164 2165 double PercentOfObjectBytes(size_t size) { 2166 return (static_cast<double>(size) / static_cast<double>(object_bytes)) * 100; 2167 } 2168 2169 void ComputeOutliers(size_t total_size, double expansion, ArtMethod* method) { 2170 method_outlier_size.push_back(total_size); 2171 method_outlier_expansion.push_back(expansion); 2172 method_outlier.push_back(method); 2173 } 2174 2175 void DumpOutliers(std::ostream& os) 2176 SHARED_REQUIRES(Locks::mutator_lock_) { 2177 size_t sum_of_sizes = 0; 2178 size_t sum_of_sizes_squared = 0; 2179 size_t sum_of_expansion = 0; 2180 size_t sum_of_expansion_squared = 0; 2181 size_t n = method_outlier_size.size(); 2182 if (n == 0) { 2183 return; 2184 } 2185 for (size_t i = 0; i < n; i++) { 2186 size_t cur_size = method_outlier_size[i]; 2187 sum_of_sizes += cur_size; 2188 sum_of_sizes_squared += cur_size * cur_size; 2189 double cur_expansion = method_outlier_expansion[i]; 2190 sum_of_expansion += cur_expansion; 2191 sum_of_expansion_squared += cur_expansion * cur_expansion; 2192 } 2193 size_t size_mean = sum_of_sizes / n; 2194 size_t size_variance = (sum_of_sizes_squared - sum_of_sizes * size_mean) / (n - 1); 2195 double expansion_mean = sum_of_expansion / n; 2196 double expansion_variance = 2197 (sum_of_expansion_squared - sum_of_expansion * expansion_mean) / (n - 1); 2198 2199 // Dump methods whose size is a certain number of standard deviations from the mean 2200 size_t dumped_values = 0; 2201 size_t skipped_values = 0; 2202 for (size_t i = 100; i > 0; i--) { // i is the current number of standard deviations 2203 size_t cur_size_variance = i * i * size_variance; 2204 bool first = true; 2205 for (size_t j = 0; j < n; j++) { 2206 size_t cur_size = method_outlier_size[j]; 2207 if (cur_size > size_mean) { 2208 size_t cur_var = cur_size - size_mean; 2209 cur_var = cur_var * cur_var; 2210 if (cur_var > cur_size_variance) { 2211 if (dumped_values > 20) { 2212 if (i == 1) { 2213 skipped_values++; 2214 } else { 2215 i = 2; // jump to counting for 1 standard deviation 2216 break; 2217 } 2218 } else { 2219 if (first) { 2220 os << "\nBig methods (size > " << i << " standard deviations the norm):\n"; 2221 first = false; 2222 } 2223 os << PrettyMethod(method_outlier[j]) << " requires storage of " 2224 << PrettySize(cur_size) << "\n"; 2225 method_outlier_size[j] = 0; // don't consider this method again 2226 dumped_values++; 2227 } 2228 } 2229 } 2230 } 2231 } 2232 if (skipped_values > 0) { 2233 os << "... skipped " << skipped_values 2234 << " methods with size > 1 standard deviation from the norm\n"; 2235 } 2236 os << std::flush; 2237 2238 // Dump methods whose expansion is a certain number of standard deviations from the mean 2239 dumped_values = 0; 2240 skipped_values = 0; 2241 for (size_t i = 10; i > 0; i--) { // i is the current number of standard deviations 2242 double cur_expansion_variance = i * i * expansion_variance; 2243 bool first = true; 2244 for (size_t j = 0; j < n; j++) { 2245 double cur_expansion = method_outlier_expansion[j]; 2246 if (cur_expansion > expansion_mean) { 2247 size_t cur_var = cur_expansion - expansion_mean; 2248 cur_var = cur_var * cur_var; 2249 if (cur_var > cur_expansion_variance) { 2250 if (dumped_values > 20) { 2251 if (i == 1) { 2252 skipped_values++; 2253 } else { 2254 i = 2; // jump to counting for 1 standard deviation 2255 break; 2256 } 2257 } else { 2258 if (first) { 2259 os << "\nLarge expansion methods (size > " << i 2260 << " standard deviations the norm):\n"; 2261 first = false; 2262 } 2263 os << PrettyMethod(method_outlier[j]) << " expanded code by " 2264 << cur_expansion << "\n"; 2265 method_outlier_expansion[j] = 0.0; // don't consider this method again 2266 dumped_values++; 2267 } 2268 } 2269 } 2270 } 2271 } 2272 if (skipped_values > 0) { 2273 os << "... skipped " << skipped_values 2274 << " methods with expansion > 1 standard deviation from the norm\n"; 2275 } 2276 os << "\n" << std::flush; 2277 } 2278 2279 void Dump(std::ostream& os, std::ostream& indent_os) 2280 SHARED_REQUIRES(Locks::mutator_lock_) { 2281 { 2282 os << "art_file_bytes = " << PrettySize(file_bytes) << "\n\n" 2283 << "art_file_bytes = header_bytes + object_bytes + alignment_bytes\n"; 2284 indent_os << StringPrintf("header_bytes = %8zd (%2.0f%% of art file bytes)\n" 2285 "object_bytes = %8zd (%2.0f%% of art file bytes)\n" 2286 "art_field_bytes = %8zd (%2.0f%% of art file bytes)\n" 2287 "art_method_bytes = %8zd (%2.0f%% of art file bytes)\n" 2288 "dex_cache_arrays_bytes = %8zd (%2.0f%% of art file bytes)\n" 2289 "interned_string_bytes = %8zd (%2.0f%% of art file bytes)\n" 2290 "class_table_bytes = %8zd (%2.0f%% of art file bytes)\n" 2291 "bitmap_bytes = %8zd (%2.0f%% of art file bytes)\n" 2292 "alignment_bytes = %8zd (%2.0f%% of art file bytes)\n\n", 2293 header_bytes, PercentOfFileBytes(header_bytes), 2294 object_bytes, PercentOfFileBytes(object_bytes), 2295 art_field_bytes, PercentOfFileBytes(art_field_bytes), 2296 art_method_bytes, PercentOfFileBytes(art_method_bytes), 2297 dex_cache_arrays_bytes, 2298 PercentOfFileBytes(dex_cache_arrays_bytes), 2299 interned_strings_bytes, 2300 PercentOfFileBytes(interned_strings_bytes), 2301 class_table_bytes, PercentOfFileBytes(class_table_bytes), 2302 bitmap_bytes, PercentOfFileBytes(bitmap_bytes), 2303 alignment_bytes, PercentOfFileBytes(alignment_bytes)) 2304 << std::flush; 2305 CHECK_EQ(file_bytes, 2306 header_bytes + object_bytes + art_field_bytes + art_method_bytes + 2307 dex_cache_arrays_bytes + interned_strings_bytes + class_table_bytes + 2308 bitmap_bytes + alignment_bytes); 2309 } 2310 2311 os << "object_bytes breakdown:\n"; 2312 size_t object_bytes_total = 0; 2313 for (const auto& sizes_and_count : sizes_and_counts) { 2314 const std::string& descriptor(sizes_and_count.first); 2315 double average = static_cast<double>(sizes_and_count.second.bytes) / 2316 static_cast<double>(sizes_and_count.second.count); 2317 double percent = PercentOfObjectBytes(sizes_and_count.second.bytes); 2318 os << StringPrintf("%32s %8zd bytes %6zd instances " 2319 "(%4.0f bytes/instance) %2.0f%% of object_bytes\n", 2320 descriptor.c_str(), sizes_and_count.second.bytes, 2321 sizes_and_count.second.count, average, percent); 2322 object_bytes_total += sizes_and_count.second.bytes; 2323 } 2324 os << "\n" << std::flush; 2325 CHECK_EQ(object_bytes, object_bytes_total); 2326 2327 os << StringPrintf("oat_file_bytes = %8zd\n" 2328 "managed_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 2329 "managed_to_native_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 2330 "native_to_managed_code_bytes = %8zd (%2.0f%% of oat file bytes)\n\n" 2331 "class_initializer_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 2332 "large_initializer_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 2333 "large_method_code_bytes = %8zd (%2.0f%% of oat file bytes)\n\n", 2334 oat_file_bytes, 2335 managed_code_bytes, 2336 PercentOfOatBytes(managed_code_bytes), 2337 managed_to_native_code_bytes, 2338 PercentOfOatBytes(managed_to_native_code_bytes), 2339 native_to_managed_code_bytes, 2340 PercentOfOatBytes(native_to_managed_code_bytes), 2341 class_initializer_code_bytes, 2342 PercentOfOatBytes(class_initializer_code_bytes), 2343 large_initializer_code_bytes, 2344 PercentOfOatBytes(large_initializer_code_bytes), 2345 large_method_code_bytes, 2346 PercentOfOatBytes(large_method_code_bytes)) 2347 << "DexFile sizes:\n"; 2348 for (const std::pair<std::string, size_t>& oat_dex_file_size : oat_dex_file_sizes) { 2349 os << StringPrintf("%s = %zd (%2.0f%% of oat file bytes)\n", 2350 oat_dex_file_size.first.c_str(), oat_dex_file_size.second, 2351 PercentOfOatBytes(oat_dex_file_size.second)); 2352 } 2353 2354 os << "\n" << StringPrintf("gc_map_bytes = %7zd (%2.0f%% of oat file bytes)\n" 2355 "pc_mapping_table_bytes = %7zd (%2.0f%% of oat file bytes)\n" 2356 "vmap_table_bytes = %7zd (%2.0f%% of oat file bytes)\n\n", 2357 gc_map_bytes, PercentOfOatBytes(gc_map_bytes), 2358 pc_mapping_table_bytes, PercentOfOatBytes(pc_mapping_table_bytes), 2359 vmap_table_bytes, PercentOfOatBytes(vmap_table_bytes)) 2360 << std::flush; 2361 2362 os << StringPrintf("dex_instruction_bytes = %zd\n", dex_instruction_bytes) 2363 << StringPrintf("managed_code_bytes expansion = %.2f (ignoring deduplication %.2f)\n\n", 2364 static_cast<double>(managed_code_bytes) / 2365 static_cast<double>(dex_instruction_bytes), 2366 static_cast<double>(managed_code_bytes_ignoring_deduplication) / 2367 static_cast<double>(dex_instruction_bytes)) 2368 << std::flush; 2369 2370 DumpOutliers(os); 2371 } 2372 } stats_; 2373 2374 private: 2375 enum { 2376 // Number of bytes for a constructor to be considered large. Based on the 1000 basic block 2377 // threshold, we assume 2 bytes per instruction and 2 instructions per block. 2378 kLargeConstructorDexBytes = 4000, 2379 // Number of bytes for a method to be considered large. Based on the 4000 basic block 2380 // threshold, we assume 2 bytes per instruction and 2 instructions per block. 2381 kLargeMethodDexBytes = 16000 2382 }; 2383 2384 // For performance, use the *os_ directly for anything that doesn't need indentation 2385 // and prepare an indentation stream with default indentation 1. 2386 std::ostream* os_; 2387 VariableIndentationOutputStream vios_; 2388 ScopedIndentation indent1_; 2389 2390 gc::space::ImageSpace& image_space_; 2391 const ImageHeader& image_header_; 2392 std::unique_ptr<OatDumper> oat_dumper_; 2393 OatDumperOptions* oat_dumper_options_; 2394 std::set<mirror::Object*> dex_caches_; 2395 2396 DISALLOW_COPY_AND_ASSIGN(ImageDumper); 2397}; 2398 2399static int DumpImage(gc::space::ImageSpace* image_space, 2400 OatDumperOptions* options, 2401 std::ostream* os) SHARED_REQUIRES(Locks::mutator_lock_) { 2402 const ImageHeader& image_header = image_space->GetImageHeader(); 2403 if (!image_header.IsValid()) { 2404 fprintf(stderr, "Invalid image header %s\n", image_space->GetImageLocation().c_str()); 2405 return EXIT_FAILURE; 2406 } 2407 ImageDumper image_dumper(os, *image_space, image_header, options); 2408 if (!image_dumper.Dump()) { 2409 return EXIT_FAILURE; 2410 } 2411 return EXIT_SUCCESS; 2412} 2413 2414static int DumpImages(Runtime* runtime, OatDumperOptions* options, std::ostream* os) { 2415 // Dumping the image, no explicit class loader. 2416 ScopedNullHandle<mirror::ClassLoader> null_class_loader; 2417 options->class_loader_ = &null_class_loader; 2418 2419 ScopedObjectAccess soa(Thread::Current()); 2420 if (options->app_image_ != nullptr) { 2421 if (options->app_oat_ == nullptr) { 2422 LOG(ERROR) << "Can not dump app image without app oat file"; 2423 return EXIT_FAILURE; 2424 } 2425 // We can't know if the app image is 32 bits yet, but it contains pointers into the oat file. 2426 // We need to map the oat file in the low 4gb or else the fixup wont be able to fit oat file 2427 // pointers into 32 bit pointer sized ArtMethods. 2428 std::string error_msg; 2429 std::unique_ptr<OatFile> oat_file(OatFile::Open(options->app_oat_, 2430 options->app_oat_, 2431 nullptr, 2432 nullptr, 2433 false, 2434 /*low_4gb*/true, 2435 nullptr, 2436 &error_msg)); 2437 if (oat_file == nullptr) { 2438 LOG(ERROR) << "Failed to open oat file " << options->app_oat_ << " with error " << error_msg; 2439 return EXIT_FAILURE; 2440 } 2441 std::unique_ptr<gc::space::ImageSpace> space( 2442 gc::space::ImageSpace::CreateFromAppImage(options->app_image_, oat_file.get(), &error_msg)); 2443 if (space == nullptr) { 2444 LOG(ERROR) << "Failed to open app image " << options->app_image_ << " with error " 2445 << error_msg; 2446 } 2447 // Open dex files for the image. 2448 std::vector<std::unique_ptr<const DexFile>> dex_files; 2449 if (!runtime->GetClassLinker()->OpenImageDexFiles(space.get(), &dex_files, &error_msg)) { 2450 LOG(ERROR) << "Failed to open app image dex files " << options->app_image_ << " with error " 2451 << error_msg; 2452 } 2453 // Dump the actual image. 2454 int result = DumpImage(space.get(), options, os); 2455 if (result != EXIT_SUCCESS) { 2456 return result; 2457 } 2458 // Fall through to dump the boot images. 2459 } 2460 2461 gc::Heap* heap = runtime->GetHeap(); 2462 CHECK(heap->HasBootImageSpace()) << "No image spaces"; 2463 for (gc::space::ImageSpace* image_space : heap->GetBootImageSpaces()) { 2464 int result = DumpImage(image_space, options, os); 2465 if (result != EXIT_SUCCESS) { 2466 return result; 2467 } 2468 } 2469 return EXIT_SUCCESS; 2470} 2471 2472static int DumpOatWithRuntime(Runtime* runtime, OatFile* oat_file, OatDumperOptions* options, 2473 std::ostream* os) { 2474 CHECK(runtime != nullptr && oat_file != nullptr && options != nullptr); 2475 2476 Thread* self = Thread::Current(); 2477 CHECK(self != nullptr); 2478 // Need well-known-classes. 2479 WellKnownClasses::Init(self->GetJniEnv()); 2480 2481 // Need to register dex files to get a working dex cache. 2482 ScopedObjectAccess soa(self); 2483 ClassLinker* class_linker = runtime->GetClassLinker(); 2484 runtime->GetOatFileManager().RegisterOatFile(std::unique_ptr<const OatFile>(oat_file)); 2485 std::vector<const DexFile*> class_path; 2486 for (const OatFile::OatDexFile* odf : oat_file->GetOatDexFiles()) { 2487 std::string error_msg; 2488 const DexFile* const dex_file = OpenDexFile(odf, &error_msg); 2489 CHECK(dex_file != nullptr) << error_msg; 2490 class_linker->RegisterDexFile(*dex_file, runtime->GetLinearAlloc()); 2491 class_path.push_back(dex_file); 2492 } 2493 2494 // Need a class loader. 2495 // Fake that we're a compiler. 2496 jobject class_loader = class_linker->CreatePathClassLoader(self, class_path); 2497 2498 // Use the class loader while dumping. 2499 StackHandleScope<1> scope(self); 2500 Handle<mirror::ClassLoader> loader_handle = scope.NewHandle( 2501 soa.Decode<mirror::ClassLoader*>(class_loader)); 2502 options->class_loader_ = &loader_handle; 2503 2504 OatDumper oat_dumper(*oat_file, *options); 2505 bool success = oat_dumper.Dump(*os); 2506 return (success) ? EXIT_SUCCESS : EXIT_FAILURE; 2507} 2508 2509static int DumpOatWithoutRuntime(OatFile* oat_file, OatDumperOptions* options, std::ostream* os) { 2510 CHECK(oat_file != nullptr && options != nullptr); 2511 // No image = no class loader. 2512 ScopedNullHandle<mirror::ClassLoader> null_class_loader; 2513 options->class_loader_ = &null_class_loader; 2514 2515 OatDumper oat_dumper(*oat_file, *options); 2516 bool success = oat_dumper.Dump(*os); 2517 return (success) ? EXIT_SUCCESS : EXIT_FAILURE; 2518} 2519 2520static int DumpOat(Runtime* runtime, const char* oat_filename, OatDumperOptions* options, 2521 std::ostream* os) { 2522 std::string error_msg; 2523 OatFile* oat_file = OatFile::Open(oat_filename, 2524 oat_filename, 2525 nullptr, 2526 nullptr, 2527 false, 2528 /*low_4gb*/false, 2529 nullptr, 2530 &error_msg); 2531 if (oat_file == nullptr) { 2532 fprintf(stderr, "Failed to open oat file from '%s': %s\n", oat_filename, error_msg.c_str()); 2533 return EXIT_FAILURE; 2534 } 2535 2536 if (runtime != nullptr) { 2537 return DumpOatWithRuntime(runtime, oat_file, options, os); 2538 } else { 2539 return DumpOatWithoutRuntime(oat_file, options, os); 2540 } 2541} 2542 2543static int SymbolizeOat(const char* oat_filename, std::string& output_name, bool no_bits) { 2544 std::string error_msg; 2545 OatFile* oat_file = OatFile::Open(oat_filename, 2546 oat_filename, 2547 nullptr, 2548 nullptr, 2549 false, 2550 /*low_4gb*/false, 2551 nullptr, 2552 &error_msg); 2553 if (oat_file == nullptr) { 2554 fprintf(stderr, "Failed to open oat file from '%s': %s\n", oat_filename, error_msg.c_str()); 2555 return EXIT_FAILURE; 2556 } 2557 2558 bool result; 2559 // Try to produce an ELF file of the same type. This is finicky, as we have used 32-bit ELF 2560 // files for 64-bit code in the past. 2561 if (Is64BitInstructionSet(oat_file->GetOatHeader().GetInstructionSet())) { 2562 OatSymbolizer<ElfTypes64> oat_symbolizer(oat_file, output_name, no_bits); 2563 result = oat_symbolizer.Symbolize(); 2564 } else { 2565 OatSymbolizer<ElfTypes32> oat_symbolizer(oat_file, output_name, no_bits); 2566 result = oat_symbolizer.Symbolize(); 2567 } 2568 if (!result) { 2569 fprintf(stderr, "Failed to symbolize\n"); 2570 return EXIT_FAILURE; 2571 } 2572 2573 return EXIT_SUCCESS; 2574} 2575 2576struct OatdumpArgs : public CmdlineArgs { 2577 protected: 2578 using Base = CmdlineArgs; 2579 2580 virtual ParseStatus ParseCustom(const StringPiece& option, 2581 std::string* error_msg) OVERRIDE { 2582 { 2583 ParseStatus base_parse = Base::ParseCustom(option, error_msg); 2584 if (base_parse != kParseUnknownArgument) { 2585 return base_parse; 2586 } 2587 } 2588 2589 if (option.starts_with("--oat-file=")) { 2590 oat_filename_ = option.substr(strlen("--oat-file=")).data(); 2591 } else if (option.starts_with("--image=")) { 2592 image_location_ = option.substr(strlen("--image=")).data(); 2593 } else if (option =="--dump:raw_mapping_table") { 2594 dump_raw_mapping_table_ = true; 2595 } else if (option == "--dump:raw_gc_map") { 2596 dump_raw_gc_map_ = true; 2597 } else if (option == "--no-dump:vmap") { 2598 dump_vmap_ = false; 2599 } else if (option =="--dump:code_info_stack_maps") { 2600 dump_code_info_stack_maps_ = true; 2601 } else if (option == "--no-disassemble") { 2602 disassemble_code_ = false; 2603 } else if (option =="--header-only") { 2604 dump_header_only_ = true; 2605 } else if (option.starts_with("--symbolize=")) { 2606 oat_filename_ = option.substr(strlen("--symbolize=")).data(); 2607 symbolize_ = true; 2608 } else if (option.starts_with("--only-keep-debug")) { 2609 only_keep_debug_ = true; 2610 } else if (option.starts_with("--class-filter=")) { 2611 class_filter_ = option.substr(strlen("--class-filter=")).data(); 2612 } else if (option.starts_with("--method-filter=")) { 2613 method_filter_ = option.substr(strlen("--method-filter=")).data(); 2614 } else if (option.starts_with("--list-classes")) { 2615 list_classes_ = true; 2616 } else if (option.starts_with("--list-methods")) { 2617 list_methods_ = true; 2618 } else if (option.starts_with("--export-dex-to=")) { 2619 export_dex_location_ = option.substr(strlen("--export-dex-to=")).data(); 2620 } else if (option.starts_with("--addr2instr=")) { 2621 if (!ParseUint(option.substr(strlen("--addr2instr=")).data(), &addr2instr_)) { 2622 *error_msg = "Address conversion failed"; 2623 return kParseError; 2624 } 2625 } else if (option.starts_with("--app-image=")) { 2626 app_image_ = option.substr(strlen("--app-image=")).data(); 2627 } else if (option.starts_with("--app-oat=")) { 2628 app_oat_ = option.substr(strlen("--app-oat=")).data(); 2629 } else { 2630 return kParseUnknownArgument; 2631 } 2632 2633 return kParseOk; 2634 } 2635 2636 virtual ParseStatus ParseChecks(std::string* error_msg) OVERRIDE { 2637 // Infer boot image location from the image location if possible. 2638 if (boot_image_location_ == nullptr) { 2639 boot_image_location_ = image_location_; 2640 } 2641 2642 // Perform the parent checks. 2643 ParseStatus parent_checks = Base::ParseChecks(error_msg); 2644 if (parent_checks != kParseOk) { 2645 return parent_checks; 2646 } 2647 2648 // Perform our own checks. 2649 if (image_location_ == nullptr && oat_filename_ == nullptr) { 2650 *error_msg = "Either --image or --oat-file must be specified"; 2651 return kParseError; 2652 } else if (image_location_ != nullptr && oat_filename_ != nullptr) { 2653 *error_msg = "Either --image or --oat-file must be specified but not both"; 2654 return kParseError; 2655 } 2656 2657 return kParseOk; 2658 } 2659 2660 virtual std::string GetUsage() const { 2661 std::string usage; 2662 2663 usage += 2664 "Usage: oatdump [options] ...\n" 2665 " Example: oatdump --image=$ANDROID_PRODUCT_OUT/system/framework/boot.art\n" 2666 " Example: adb shell oatdump --image=/system/framework/boot.art\n" 2667 "\n" 2668 // Either oat-file or image is required. 2669 " --oat-file=<file.oat>: specifies an input oat filename.\n" 2670 " Example: --oat-file=/system/framework/boot.oat\n" 2671 "\n" 2672 " --image=<file.art>: specifies an input image location.\n" 2673 " Example: --image=/system/framework/boot.art\n" 2674 "\n" 2675 " --app-image=<file.art>: specifies an input app image. Must also have a specified\n" 2676 " boot image and app oat file.\n" 2677 " Example: --app-image=app.art\n" 2678 "\n" 2679 " --app-oat=<file.odex>: specifies an input app oat.\n" 2680 " Example: --app-oat=app.odex\n" 2681 "\n"; 2682 2683 usage += Base::GetUsage(); 2684 2685 usage += // Optional. 2686 " --dump:raw_mapping_table enables dumping of the mapping table.\n" 2687 " Example: --dump:raw_mapping_table\n" 2688 "\n" 2689 " --dump:raw_gc_map enables dumping of the GC map.\n" 2690 " Example: --dump:raw_gc_map\n" 2691 "\n" 2692 " --no-dump:vmap may be used to disable vmap dumping.\n" 2693 " Example: --no-dump:vmap\n" 2694 "\n" 2695 " --dump:code_info_stack_maps enables dumping of stack maps in CodeInfo sections.\n" 2696 " Example: --dump:code_info_stack_maps\n" 2697 "\n" 2698 " --no-disassemble may be used to disable disassembly.\n" 2699 " Example: --no-disassemble\n" 2700 "\n" 2701 " --header-only may be used to print only the oat header.\n" 2702 " Example: --header-only\n" 2703 "\n" 2704 " --list-classes may be used to list target file classes (can be used with filters).\n" 2705 " Example: --list-classes\n" 2706 " Example: --list-classes --class-filter=com.example.foo\n" 2707 "\n" 2708 " --list-methods may be used to list target file methods (can be used with filters).\n" 2709 " Example: --list-methods\n" 2710 " Example: --list-methods --class-filter=com.example --method-filter=foo\n" 2711 "\n" 2712 " --symbolize=<file.oat>: output a copy of file.oat with elf symbols included.\n" 2713 " Example: --symbolize=/system/framework/boot.oat\n" 2714 "\n" 2715 " --only-keep-debug<file.oat>: Modifies the behaviour of --symbolize so that\n" 2716 " .rodata and .text sections are omitted in the output file to save space.\n" 2717 " Example: --symbolize=/system/framework/boot.oat --only-keep-debug\n" 2718 "\n" 2719 " --class-filter=<class name>: only dumps classes that contain the filter.\n" 2720 " Example: --class-filter=com.example.foo\n" 2721 "\n" 2722 " --method-filter=<method name>: only dumps methods that contain the filter.\n" 2723 " Example: --method-filter=foo\n" 2724 "\n" 2725 " --export-dex-to=<directory>: may be used to export oat embedded dex files.\n" 2726 " Example: --export-dex-to=/data/local/tmp\n" 2727 "\n" 2728 " --addr2instr=<address>: output matching method disassembled code from relative\n" 2729 " address (e.g. PC from crash dump)\n" 2730 " Example: --addr2instr=0x00001a3b\n" 2731 "\n"; 2732 2733 return usage; 2734 } 2735 2736 public: 2737 const char* oat_filename_ = nullptr; 2738 const char* class_filter_ = ""; 2739 const char* method_filter_ = ""; 2740 const char* image_location_ = nullptr; 2741 std::string elf_filename_prefix_; 2742 bool dump_raw_mapping_table_ = false; 2743 bool dump_raw_gc_map_ = false; 2744 bool dump_vmap_ = true; 2745 bool dump_code_info_stack_maps_ = false; 2746 bool disassemble_code_ = true; 2747 bool symbolize_ = false; 2748 bool only_keep_debug_ = false; 2749 bool list_classes_ = false; 2750 bool list_methods_ = false; 2751 bool dump_header_only_ = false; 2752 uint32_t addr2instr_ = 0; 2753 const char* export_dex_location_ = nullptr; 2754 const char* app_image_ = nullptr; 2755 const char* app_oat_ = nullptr; 2756}; 2757 2758struct OatdumpMain : public CmdlineMain<OatdumpArgs> { 2759 virtual bool NeedsRuntime() OVERRIDE { 2760 CHECK(args_ != nullptr); 2761 2762 // If we are only doing the oat file, disable absolute_addresses. Keep them for image dumping. 2763 bool absolute_addresses = (args_->oat_filename_ == nullptr); 2764 2765 oat_dumper_options_.reset(new OatDumperOptions( 2766 args_->dump_raw_mapping_table_, 2767 args_->dump_raw_gc_map_, 2768 args_->dump_vmap_, 2769 args_->dump_code_info_stack_maps_, 2770 args_->disassemble_code_, 2771 absolute_addresses, 2772 args_->class_filter_, 2773 args_->method_filter_, 2774 args_->list_classes_, 2775 args_->list_methods_, 2776 args_->dump_header_only_, 2777 args_->export_dex_location_, 2778 args_->app_image_, 2779 args_->app_oat_, 2780 args_->addr2instr_)); 2781 2782 return (args_->boot_image_location_ != nullptr || args_->image_location_ != nullptr) && 2783 !args_->symbolize_; 2784 } 2785 2786 virtual bool ExecuteWithoutRuntime() OVERRIDE { 2787 CHECK(args_ != nullptr); 2788 CHECK(args_->oat_filename_ != nullptr); 2789 2790 MemMap::Init(); 2791 2792 if (args_->symbolize_) { 2793 // ELF has special kind of section called SHT_NOBITS which allows us to create 2794 // sections which exist but their data is omitted from the ELF file to save space. 2795 // This is what "strip --only-keep-debug" does when it creates separate ELF file 2796 // with only debug data. We use it in similar way to exclude .rodata and .text. 2797 bool no_bits = args_->only_keep_debug_; 2798 return SymbolizeOat(args_->oat_filename_, args_->output_name_, no_bits) == EXIT_SUCCESS; 2799 } else { 2800 return DumpOat(nullptr, 2801 args_->oat_filename_, 2802 oat_dumper_options_.get(), 2803 args_->os_) == EXIT_SUCCESS; 2804 } 2805 } 2806 2807 virtual bool ExecuteWithRuntime(Runtime* runtime) { 2808 CHECK(args_ != nullptr); 2809 2810 if (args_->oat_filename_ != nullptr) { 2811 return DumpOat(runtime, 2812 args_->oat_filename_, 2813 oat_dumper_options_.get(), 2814 args_->os_) == EXIT_SUCCESS; 2815 } 2816 2817 return DumpImages(runtime, oat_dumper_options_.get(), args_->os_) == EXIT_SUCCESS; 2818 } 2819 2820 std::unique_ptr<OatDumperOptions> oat_dumper_options_; 2821}; 2822 2823} // namespace art 2824 2825int main(int argc, char** argv) { 2826 art::OatdumpMain main; 2827 return main.Main(argc, argv); 2828} 2829