oatdump.cc revision 2ed8deff799448e094fa7a7cb9cf3b718820f4c6
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 <string> 23#include <unordered_map> 24#include <vector> 25 26#include "base/stringpiece.h" 27#include "base/unix_file/fd_file.h" 28#include "class_linker.h" 29#include "class_linker-inl.h" 30#include "dex_file-inl.h" 31#include "dex_instruction.h" 32#include "disassembler.h" 33#include "elf_builder.h" 34#include "field_helper.h" 35#include "gc_map.h" 36#include "gc/space/image_space.h" 37#include "gc/space/large_object_space.h" 38#include "gc/space/space-inl.h" 39#include "image.h" 40#include "indenter.h" 41#include "mapping_table.h" 42#include "mirror/art_field-inl.h" 43#include "mirror/art_method-inl.h" 44#include "mirror/array-inl.h" 45#include "mirror/class-inl.h" 46#include "mirror/object-inl.h" 47#include "mirror/object_array-inl.h" 48#include "noop_compiler_callbacks.h" 49#include "oat.h" 50#include "oat_file-inl.h" 51#include "os.h" 52#include "output_stream.h" 53#include "runtime.h" 54#include "safe_map.h" 55#include "scoped_thread_state_change.h" 56#include "thread_list.h" 57#include "verifier/dex_gc_map.h" 58#include "verifier/method_verifier.h" 59#include "vmap_table.h" 60 61namespace art { 62 63static void usage() { 64 fprintf(stderr, 65 "Usage: oatdump [options] ...\n" 66 " Example: oatdump --image=$ANDROID_PRODUCT_OUT/system/framework/boot.art\n" 67 " Example: adb shell oatdump --image=/system/framework/boot.art\n" 68 "\n"); 69 fprintf(stderr, 70 " --oat-file=<file.oat>: specifies an input oat filename.\n" 71 " Example: --oat-file=/system/framework/boot.oat\n" 72 "\n"); 73 fprintf(stderr, 74 " --image=<file.art>: specifies an input image filename.\n" 75 " Example: --image=/system/framework/boot.art\n" 76 "\n"); 77 fprintf(stderr, 78 " --boot-image=<file.art>: provide the image file for the boot class path.\n" 79 " Example: --boot-image=/system/framework/boot.art\n" 80 "\n"); 81 fprintf(stderr, 82 " --instruction-set=(arm|arm64|mips|x86|x86_64): for locating the image file based on the image location\n" 83 " set.\n" 84 " Example: --instruction-set=x86\n" 85 " Default: %s\n" 86 "\n", 87 GetInstructionSetString(kRuntimeISA)); 88 fprintf(stderr, 89 " --output=<file> may be used to send the output to a file.\n" 90 " Example: --output=/tmp/oatdump.txt\n" 91 "\n"); 92 fprintf(stderr, 93 " --dump:[raw_mapping_table|raw_gc_map]\n" 94 " Example: --dump:raw_gc_map\n" 95 " Default: neither\n" 96 "\n"); 97 exit(EXIT_FAILURE); 98} 99 100const char* image_roots_descriptions_[] = { 101 "kResolutionMethod", 102 "kImtConflictMethod", 103 "kDefaultImt", 104 "kCalleeSaveMethod", 105 "kRefsOnlySaveMethod", 106 "kRefsAndArgsSaveMethod", 107 "kDexCaches", 108 "kClassRoots", 109}; 110 111class OatSymbolizer : public CodeOutput { 112 public: 113 explicit OatSymbolizer(const OatFile* oat_file, std::string& output_name) : 114 oat_file_(oat_file), builder_(nullptr), elf_output_(nullptr), output_name_(output_name) {} 115 116 bool Init() { 117 Elf32_Word oat_data_size = oat_file_->GetOatHeader().GetExecutableOffset(); 118 119 uint32_t diff = static_cast<uint32_t>(oat_file_->End() - oat_file_->Begin()); 120 uint32_t oat_exec_size = diff - oat_data_size; 121 122 if (output_name_.empty()) { 123 output_name_ = "symbolized.oat"; 124 } 125 elf_output_ = OS::CreateEmptyFile(output_name_.c_str()); 126 127 builder_.reset(new ElfBuilder<Elf32_Word, Elf32_Sword, Elf32_Addr, Elf32_Dyn, 128 Elf32_Sym, Elf32_Ehdr, Elf32_Phdr, Elf32_Shdr>( 129 this, 130 elf_output_, 131 oat_file_->GetOatHeader().GetInstructionSet(), 132 0, 133 oat_data_size, 134 oat_data_size, 135 oat_exec_size, 136 true, 137 false)); 138 139 if (!builder_->Init()) { 140 builder_.reset(nullptr); 141 return false; 142 } 143 144 return true; 145 } 146 147 typedef void (OatSymbolizer::*Callback)(const DexFile::ClassDef&, 148 uint32_t, 149 const OatFile::OatMethod&, 150 const DexFile&, 151 uint32_t, 152 const DexFile::CodeItem*, 153 uint32_t); 154 155 bool Symbolize() { 156 if (builder_.get() == nullptr) { 157 return false; 158 } 159 160 Walk(&art::OatSymbolizer::RegisterForDedup); 161 162 NormalizeState(); 163 164 Walk(&art::OatSymbolizer::AddSymbol); 165 166 bool result = builder_->Write(); 167 168 elf_output_->Flush(); 169 elf_output_->Close(); 170 171 return result; 172 } 173 174 void Walk(Callback callback) { 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 != NULL); 179 WalkOatDexFile(oat_dex_file, callback); 180 } 181 } 182 183 void WalkOatDexFile(const OatFile::OatDexFile* oat_dex_file, Callback callback) { 184 std::string error_msg; 185 std::unique_ptr<const DexFile> dex_file(oat_dex_file->OpenDexFile(&error_msg)); 186 if (dex_file.get() == 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 DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index); 193 const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(class_def_index); 194 OatClassType type = oat_class.GetType(); 195 switch (type) { 196 case kOatClassAllCompiled: 197 case kOatClassSomeCompiled: 198 WalkOatClass(oat_class, *dex_file.get(), class_def, callback); 199 break; 200 201 case kOatClassNoneCompiled: 202 case kOatClassMax: 203 // Ignore. 204 break; 205 } 206 } 207 } 208 209 void WalkOatClass(const OatFile::OatClass& oat_class, const DexFile& dex_file, 210 const DexFile::ClassDef& class_def, Callback callback) { 211 const byte* class_data = dex_file.GetClassData(class_def); 212 if (class_data == nullptr) { // empty class such as a marker interface? 213 return; 214 } 215 // Note: even if this is an interface or a native class, we still have to walk it, as there 216 // might be a static initializer. 217 ClassDataItemIterator it(dex_file, class_data); 218 SkipAllFields(&it); 219 uint32_t class_method_idx = 0; 220 while (it.HasNextDirectMethod()) { 221 const OatFile::OatMethod oat_method = oat_class.GetOatMethod(class_method_idx); 222 WalkOatMethod(class_def, class_method_idx, oat_method, dex_file, it.GetMemberIndex(), 223 it.GetMethodCodeItem(), it.GetMethodAccessFlags(), callback); 224 class_method_idx++; 225 it.Next(); 226 } 227 while (it.HasNextVirtualMethod()) { 228 const OatFile::OatMethod oat_method = oat_class.GetOatMethod(class_method_idx); 229 WalkOatMethod(class_def, class_method_idx, oat_method, dex_file, it.GetMemberIndex(), 230 it.GetMethodCodeItem(), it.GetMethodAccessFlags(), callback); 231 class_method_idx++; 232 it.Next(); 233 } 234 DCHECK(!it.HasNext()); 235 } 236 237 void WalkOatMethod(const DexFile::ClassDef& class_def, uint32_t class_method_index, 238 const OatFile::OatMethod& oat_method, const DexFile& dex_file, 239 uint32_t dex_method_idx, const DexFile::CodeItem* code_item, 240 uint32_t method_access_flags, Callback callback) { 241 if ((method_access_flags & kAccAbstract) != 0) { 242 // Abstract method, no code. 243 return; 244 } 245 if (oat_method.GetCodeOffset() == 0) { 246 // No code. 247 return; 248 } 249 250 (this->*callback)(class_def, class_method_index, oat_method, dex_file, dex_method_idx, code_item, 251 method_access_flags); 252 } 253 254 void RegisterForDedup(const DexFile::ClassDef& class_def, uint32_t class_method_index, 255 const OatFile::OatMethod& oat_method, const DexFile& dex_file, 256 uint32_t dex_method_idx, const DexFile::CodeItem* code_item, 257 uint32_t method_access_flags) { 258 state_[oat_method.GetCodeOffset()]++; 259 } 260 261 void NormalizeState() { 262 for (auto& x : state_) { 263 if (x.second == 1) { 264 state_[x.first] = 0; 265 } 266 } 267 } 268 269 enum class DedupState { // private 270 kNotDeduplicated, 271 kDeduplicatedFirst, 272 kDeduplicatedOther 273 }; 274 DedupState IsDuplicated(uint32_t offset) { 275 if (state_[offset] == 0) { 276 return DedupState::kNotDeduplicated; 277 } 278 if (state_[offset] == 1) { 279 return DedupState::kDeduplicatedOther; 280 } 281 state_[offset] = 1; 282 return DedupState::kDeduplicatedFirst; 283 } 284 285 void AddSymbol(const DexFile::ClassDef& class_def, uint32_t class_method_index, 286 const OatFile::OatMethod& oat_method, const DexFile& dex_file, 287 uint32_t dex_method_idx, const DexFile::CodeItem* code_item, 288 uint32_t method_access_flags) { 289 DedupState dedup = IsDuplicated(oat_method.GetCodeOffset()); 290 if (dedup != DedupState::kDeduplicatedOther) { 291 std::string pretty_name = PrettyMethod(dex_method_idx, dex_file, true); 292 293 if (dedup == DedupState::kDeduplicatedFirst) { 294 pretty_name = "[Dedup]" + pretty_name; 295 } 296 297 ElfSymtabBuilder<Elf32_Word, Elf32_Sword, Elf32_Addr, 298 Elf32_Sym, Elf32_Shdr>* symtab = &builder_->symtab_builder_; 299 300 symtab->AddSymbol(pretty_name, &builder_->text_builder_, oat_method.GetCodeOffset() - 301 oat_file_->GetOatHeader().GetExecutableOffset(), true, 302 oat_method.GetQuickCodeSize(), STB_GLOBAL, STT_FUNC); 303 } 304 } 305 306 // Write oat code. Required by ElfBuilder/CodeOutput. 307 bool Write(OutputStream* out) { 308 return out->WriteFully(oat_file_->Begin(), oat_file_->End() - oat_file_->Begin()); 309 } 310 311 private: 312 static void SkipAllFields(ClassDataItemIterator* it) { 313 while (it->HasNextStaticField()) { 314 it->Next(); 315 } 316 while (it->HasNextInstanceField()) { 317 it->Next(); 318 } 319 } 320 321 const OatFile* oat_file_; 322 std::unique_ptr<ElfBuilder<Elf32_Word, Elf32_Sword, Elf32_Addr, Elf32_Dyn, 323 Elf32_Sym, Elf32_Ehdr, Elf32_Phdr, Elf32_Shdr> > builder_; 324 File* elf_output_; 325 std::unordered_map<uint32_t, uint32_t> state_; 326 std::string output_name_; 327}; 328 329class OatDumper { 330 public: 331 explicit OatDumper(const OatFile& oat_file, bool dump_raw_mapping_table, bool dump_raw_gc_map) 332 : oat_file_(oat_file), 333 oat_dex_files_(oat_file.GetOatDexFiles()), 334 dump_raw_mapping_table_(dump_raw_mapping_table), 335 dump_raw_gc_map_(dump_raw_gc_map), 336 disassembler_(Disassembler::Create(oat_file_.GetOatHeader().GetInstructionSet())) { 337 AddAllOffsets(); 338 } 339 340 void Dump(std::ostream& os) { 341 const OatHeader& oat_header = oat_file_.GetOatHeader(); 342 343 os << "MAGIC:\n"; 344 os << oat_header.GetMagic() << "\n\n"; 345 346 os << "CHECKSUM:\n"; 347 os << StringPrintf("0x%08x\n\n", oat_header.GetChecksum()); 348 349 os << "INSTRUCTION SET:\n"; 350 os << oat_header.GetInstructionSet() << "\n\n"; 351 352 os << "INSTRUCTION SET FEATURES:\n"; 353 os << oat_header.GetInstructionSetFeatures().GetFeatureString() << "\n\n"; 354 355 os << "DEX FILE COUNT:\n"; 356 os << oat_header.GetDexFileCount() << "\n\n"; 357 358#define DUMP_OAT_HEADER_OFFSET(label, offset) \ 359 os << label " OFFSET:\n"; \ 360 os << StringPrintf("0x%08x", oat_header.offset()); \ 361 if (oat_header.offset() != 0) { \ 362 os << StringPrintf(" (%p)", oat_file_.Begin() + oat_header.offset()); \ 363 } \ 364 os << StringPrintf("\n\n"); 365 366 DUMP_OAT_HEADER_OFFSET("EXECUTABLE", GetExecutableOffset); 367 DUMP_OAT_HEADER_OFFSET("INTERPRETER TO INTERPRETER BRIDGE", 368 GetInterpreterToInterpreterBridgeOffset); 369 DUMP_OAT_HEADER_OFFSET("INTERPRETER TO COMPILED CODE BRIDGE", 370 GetInterpreterToCompiledCodeBridgeOffset); 371 DUMP_OAT_HEADER_OFFSET("JNI DLSYM LOOKUP", 372 GetJniDlsymLookupOffset); 373 DUMP_OAT_HEADER_OFFSET("PORTABLE IMT CONFLICT TRAMPOLINE", 374 GetPortableImtConflictTrampolineOffset); 375 DUMP_OAT_HEADER_OFFSET("PORTABLE RESOLUTION TRAMPOLINE", 376 GetPortableResolutionTrampolineOffset); 377 DUMP_OAT_HEADER_OFFSET("PORTABLE TO INTERPRETER BRIDGE", 378 GetPortableToInterpreterBridgeOffset); 379 DUMP_OAT_HEADER_OFFSET("QUICK GENERIC JNI TRAMPOLINE", 380 GetQuickGenericJniTrampolineOffset); 381 DUMP_OAT_HEADER_OFFSET("QUICK IMT CONFLICT TRAMPOLINE", 382 GetQuickImtConflictTrampolineOffset); 383 DUMP_OAT_HEADER_OFFSET("QUICK RESOLUTION TRAMPOLINE", 384 GetQuickResolutionTrampolineOffset); 385 DUMP_OAT_HEADER_OFFSET("QUICK TO INTERPRETER BRIDGE", 386 GetQuickToInterpreterBridgeOffset); 387#undef DUMP_OAT_HEADER_OFFSET 388 389 os << "IMAGE PATCH DELTA:\n" << oat_header.GetImagePatchDelta() << "\n\n"; 390 391 os << "IMAGE FILE LOCATION OAT CHECKSUM:\n"; 392 os << StringPrintf("0x%08x\n\n", oat_header.GetImageFileLocationOatChecksum()); 393 394 os << "IMAGE FILE LOCATION OAT BEGIN:\n"; 395 os << StringPrintf("0x%08x\n\n", oat_header.GetImageFileLocationOatDataBegin()); 396 397 // Print the key-value store. 398 { 399 os << "KEY VALUE STORE:\n"; 400 size_t index = 0; 401 const char* key; 402 const char* value; 403 while (oat_header.GetStoreKeyValuePairByIndex(index, &key, &value)) { 404 os << key << " = " << value << "\n"; 405 index++; 406 } 407 os << "\n"; 408 } 409 410 os << "BEGIN:\n"; 411 os << reinterpret_cast<const void*>(oat_file_.Begin()) << "\n\n"; 412 413 os << "END:\n"; 414 os << reinterpret_cast<const void*>(oat_file_.End()) << "\n\n"; 415 416 os << std::flush; 417 418 for (size_t i = 0; i < oat_dex_files_.size(); i++) { 419 const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i]; 420 CHECK(oat_dex_file != nullptr); 421 DumpOatDexFile(os, *oat_dex_file); 422 } 423 } 424 425 size_t ComputeSize(const void* oat_data) { 426 if (reinterpret_cast<const byte*>(oat_data) < oat_file_.Begin() || 427 reinterpret_cast<const byte*>(oat_data) > oat_file_.End()) { 428 return 0; // Address not in oat file 429 } 430 uintptr_t begin_offset = reinterpret_cast<uintptr_t>(oat_data) - 431 reinterpret_cast<uintptr_t>(oat_file_.Begin()); 432 auto it = offsets_.upper_bound(begin_offset); 433 CHECK(it != offsets_.end()); 434 uintptr_t end_offset = *it; 435 return end_offset - begin_offset; 436 } 437 438 InstructionSet GetInstructionSet() { 439 return oat_file_.GetOatHeader().GetInstructionSet(); 440 } 441 442 const void* GetQuickOatCode(mirror::ArtMethod* m) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 443 for (size_t i = 0; i < oat_dex_files_.size(); i++) { 444 const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i]; 445 CHECK(oat_dex_file != nullptr); 446 std::string error_msg; 447 std::unique_ptr<const DexFile> dex_file(oat_dex_file->OpenDexFile(&error_msg)); 448 if (dex_file.get() == nullptr) { 449 LOG(WARNING) << "Failed to open dex file '" << oat_dex_file->GetDexFileLocation() 450 << "': " << error_msg; 451 } else { 452 const DexFile::ClassDef* class_def = 453 dex_file->FindClassDef(m->GetDeclaringClassDescriptor()); 454 if (class_def != nullptr) { 455 uint16_t class_def_index = dex_file->GetIndexForClassDef(*class_def); 456 const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(class_def_index); 457 size_t method_index = m->GetMethodIndex(); 458 return oat_class.GetOatMethod(method_index).GetQuickCode(); 459 } 460 } 461 } 462 return nullptr; 463 } 464 465 private: 466 void AddAllOffsets() { 467 // We don't know the length of the code for each method, but we need to know where to stop 468 // when disassembling. What we do know is that a region of code will be followed by some other 469 // region, so if we keep a sorted sequence of the start of each region, we can infer the length 470 // of a piece of code by using upper_bound to find the start of the next region. 471 for (size_t i = 0; i < oat_dex_files_.size(); i++) { 472 const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i]; 473 CHECK(oat_dex_file != nullptr); 474 std::string error_msg; 475 std::unique_ptr<const DexFile> dex_file(oat_dex_file->OpenDexFile(&error_msg)); 476 if (dex_file.get() == nullptr) { 477 LOG(WARNING) << "Failed to open dex file '" << oat_dex_file->GetDexFileLocation() 478 << "': " << error_msg; 479 continue; 480 } 481 offsets_.insert(reinterpret_cast<uintptr_t>(&dex_file->GetHeader())); 482 for (size_t class_def_index = 0; 483 class_def_index < dex_file->NumClassDefs(); 484 class_def_index++) { 485 const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index); 486 const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(class_def_index); 487 const byte* class_data = dex_file->GetClassData(class_def); 488 if (class_data != nullptr) { 489 ClassDataItemIterator it(*dex_file, class_data); 490 SkipAllFields(it); 491 uint32_t class_method_index = 0; 492 while (it.HasNextDirectMethod()) { 493 AddOffsets(oat_class.GetOatMethod(class_method_index++)); 494 it.Next(); 495 } 496 while (it.HasNextVirtualMethod()) { 497 AddOffsets(oat_class.GetOatMethod(class_method_index++)); 498 it.Next(); 499 } 500 } 501 } 502 } 503 504 // If the last thing in the file is code for a method, there won't be an offset for the "next" 505 // thing. Instead of having a special case in the upper_bound code, let's just add an entry 506 // for the end of the file. 507 offsets_.insert(oat_file_.Size()); 508 } 509 510 void AddOffsets(const OatFile::OatMethod& oat_method) { 511 uint32_t code_offset = oat_method.GetCodeOffset(); 512 if (oat_file_.GetOatHeader().GetInstructionSet() == kThumb2) { 513 code_offset &= ~0x1; 514 } 515 offsets_.insert(code_offset); 516 offsets_.insert(oat_method.GetMappingTableOffset()); 517 offsets_.insert(oat_method.GetVmapTableOffset()); 518 offsets_.insert(oat_method.GetNativeGcMapOffset()); 519 } 520 521 void DumpOatDexFile(std::ostream& os, const OatFile::OatDexFile& oat_dex_file) { 522 os << "OAT DEX FILE:\n"; 523 os << StringPrintf("location: %s\n", oat_dex_file.GetDexFileLocation().c_str()); 524 os << StringPrintf("checksum: 0x%08x\n", oat_dex_file.GetDexFileLocationChecksum()); 525 526 // Create the verifier early. 527 528 std::string error_msg; 529 std::unique_ptr<const DexFile> dex_file(oat_dex_file.OpenDexFile(&error_msg)); 530 if (dex_file.get() == nullptr) { 531 os << "NOT FOUND: " << error_msg << "\n\n"; 532 return; 533 } 534 for (size_t class_def_index = 0; 535 class_def_index < dex_file->NumClassDefs(); 536 class_def_index++) { 537 const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index); 538 const char* descriptor = dex_file->GetClassDescriptor(class_def); 539 const OatFile::OatClass oat_class = oat_dex_file.GetOatClass(class_def_index); 540 os << StringPrintf("%zd: %s (type_idx=%d)", class_def_index, descriptor, class_def.class_idx_) 541 << " (" << oat_class.GetStatus() << ")" 542 << " (" << oat_class.GetType() << ")\n"; 543 // TODO: include bitmap here if type is kOatClassSomeCompiled? 544 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 545 std::ostream indented_os(&indent_filter); 546 DumpOatClass(indented_os, oat_class, *(dex_file.get()), class_def); 547 } 548 549 os << std::flush; 550 } 551 552 static void SkipAllFields(ClassDataItemIterator& it) { 553 while (it.HasNextStaticField()) { 554 it.Next(); 555 } 556 while (it.HasNextInstanceField()) { 557 it.Next(); 558 } 559 } 560 561 void DumpOatClass(std::ostream& os, const OatFile::OatClass& oat_class, const DexFile& dex_file, 562 const DexFile::ClassDef& class_def) { 563 const byte* class_data = dex_file.GetClassData(class_def); 564 if (class_data == nullptr) { // empty class such as a marker interface? 565 return; 566 } 567 ClassDataItemIterator it(dex_file, class_data); 568 SkipAllFields(it); 569 uint32_t class_method_idx = 0; 570 while (it.HasNextDirectMethod()) { 571 const OatFile::OatMethod oat_method = oat_class.GetOatMethod(class_method_idx); 572 DumpOatMethod(os, class_def, class_method_idx, oat_method, dex_file, 573 it.GetMemberIndex(), it.GetMethodCodeItem(), it.GetRawMemberAccessFlags()); 574 class_method_idx++; 575 it.Next(); 576 } 577 while (it.HasNextVirtualMethod()) { 578 const OatFile::OatMethod oat_method = oat_class.GetOatMethod(class_method_idx); 579 DumpOatMethod(os, class_def, class_method_idx, oat_method, dex_file, 580 it.GetMemberIndex(), it.GetMethodCodeItem(), it.GetRawMemberAccessFlags()); 581 class_method_idx++; 582 it.Next(); 583 } 584 DCHECK(!it.HasNext()); 585 os << std::flush; 586 } 587 588 void DumpOatMethod(std::ostream& os, const DexFile::ClassDef& class_def, 589 uint32_t class_method_index, 590 const OatFile::OatMethod& oat_method, const DexFile& dex_file, 591 uint32_t dex_method_idx, const DexFile::CodeItem* code_item, 592 uint32_t method_access_flags) { 593 os << StringPrintf("%d: %s (dex_method_idx=%d)\n", 594 class_method_index, PrettyMethod(dex_method_idx, dex_file, true).c_str(), 595 dex_method_idx); 596 Indenter indent1_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 597 std::unique_ptr<std::ostream> indent1_os(new std::ostream(&indent1_filter)); 598 Indenter indent2_filter(indent1_os->rdbuf(), kIndentChar, kIndentBy1Count); 599 std::unique_ptr<std::ostream> indent2_os(new std::ostream(&indent2_filter)); 600 { 601 *indent1_os << "DEX CODE:\n"; 602 DumpDexCode(*indent2_os, dex_file, code_item); 603 } 604 605 std::unique_ptr<verifier::MethodVerifier> verifier; 606 if (Runtime::Current() != nullptr) { 607 *indent1_os << "VERIFIER TYPE ANALYSIS:\n"; 608 verifier.reset(DumpVerifier(*indent2_os, dex_method_idx, &dex_file, class_def, code_item, 609 method_access_flags)); 610 } 611 { 612 *indent1_os << "OAT DATA:\n"; 613 614 *indent2_os << StringPrintf("frame_size_in_bytes: %zd\n", oat_method.GetFrameSizeInBytes()); 615 *indent2_os << StringPrintf("core_spill_mask: 0x%08x ", oat_method.GetCoreSpillMask()); 616 DumpSpillMask(*indent2_os, oat_method.GetCoreSpillMask(), false); 617 *indent2_os << StringPrintf("\nfp_spill_mask: 0x%08x ", oat_method.GetFpSpillMask()); 618 DumpSpillMask(*indent2_os, oat_method.GetFpSpillMask(), true); 619 *indent2_os << StringPrintf("\nvmap_table: %p (offset=0x%08x)\n", 620 oat_method.GetVmapTable(), oat_method.GetVmapTableOffset()); 621 622 if (oat_method.GetNativeGcMap() != nullptr) { 623 // The native GC map is null for methods compiled with the optimizing compiler. 624 DumpVmap(*indent2_os, oat_method); 625 } 626 DumpVregLocations(*indent2_os, oat_method, code_item); 627 *indent2_os << StringPrintf("mapping_table: %p (offset=0x%08x)\n", 628 oat_method.GetMappingTable(), oat_method.GetMappingTableOffset()); 629 if (dump_raw_mapping_table_) { 630 Indenter indent3_filter(indent2_os->rdbuf(), kIndentChar, kIndentBy1Count); 631 std::ostream indent3_os(&indent3_filter); 632 DumpMappingTable(indent3_os, oat_method); 633 } 634 *indent2_os << StringPrintf("gc_map: %p (offset=0x%08x)\n", 635 oat_method.GetNativeGcMap(), oat_method.GetNativeGcMapOffset()); 636 if (dump_raw_gc_map_) { 637 Indenter indent3_filter(indent2_os->rdbuf(), kIndentChar, kIndentBy1Count); 638 std::ostream indent3_os(&indent3_filter); 639 DumpGcMap(indent3_os, oat_method, code_item); 640 } 641 } 642 { 643 const void* code = oat_method.GetQuickCode(); 644 uint32_t code_size = oat_method.GetQuickCodeSize(); 645 if (code == nullptr) { 646 code = oat_method.GetPortableCode(); 647 code_size = oat_method.GetPortableCodeSize(); 648 } 649 *indent1_os << StringPrintf("CODE: %p (offset=0x%08x size=%d)%s\n", 650 code, 651 oat_method.GetCodeOffset(), 652 code_size, 653 code != nullptr ? "..." : ""); 654 655 DumpCode(*indent2_os, verifier.get(), oat_method, code_item); 656 } 657 } 658 659 void DumpSpillMask(std::ostream& os, uint32_t spill_mask, bool is_float) { 660 if (spill_mask == 0) { 661 return; 662 } 663 os << "("; 664 for (size_t i = 0; i < 32; i++) { 665 if ((spill_mask & (1 << i)) != 0) { 666 if (is_float) { 667 os << "fr" << i; 668 } else { 669 os << "r" << i; 670 } 671 spill_mask ^= 1 << i; // clear bit 672 if (spill_mask != 0) { 673 os << ", "; 674 } else { 675 break; 676 } 677 } 678 } 679 os << ")"; 680 } 681 682 void DumpVmap(std::ostream& os, const OatFile::OatMethod& oat_method) { 683 const uint8_t* raw_table = oat_method.GetVmapTable(); 684 if (raw_table != nullptr) { 685 const VmapTable vmap_table(raw_table); 686 bool first = true; 687 bool processing_fp = false; 688 uint32_t spill_mask = oat_method.GetCoreSpillMask(); 689 for (size_t i = 0; i < vmap_table.Size(); i++) { 690 uint16_t dex_reg = vmap_table[i]; 691 uint32_t cpu_reg = vmap_table.ComputeRegister(spill_mask, i, 692 processing_fp ? kFloatVReg : kIntVReg); 693 os << (first ? "v" : ", v") << dex_reg; 694 if (!processing_fp) { 695 os << "/r" << cpu_reg; 696 } else { 697 os << "/fr" << cpu_reg; 698 } 699 first = false; 700 if (!processing_fp && dex_reg == 0xFFFF) { 701 processing_fp = true; 702 spill_mask = oat_method.GetFpSpillMask(); 703 } 704 } 705 os << "\n"; 706 } 707 } 708 709 void DumpVregLocations(std::ostream& os, const OatFile::OatMethod& oat_method, 710 const DexFile::CodeItem* code_item) { 711 if (code_item != nullptr) { 712 size_t num_locals_ins = code_item->registers_size_; 713 size_t num_ins = code_item->ins_size_; 714 size_t num_locals = num_locals_ins - num_ins; 715 size_t num_outs = code_item->outs_size_; 716 717 os << "vr_stack_locations:"; 718 for (size_t reg = 0; reg <= num_locals_ins; reg++) { 719 // For readability, delimit the different kinds of VRs. 720 if (reg == num_locals_ins) { 721 os << "\n\tmethod*:"; 722 } else if (reg == num_locals && num_ins > 0) { 723 os << "\n\tins:"; 724 } else if (reg == 0 && num_locals > 0) { 725 os << "\n\tlocals:"; 726 } 727 728 uint32_t offset = StackVisitor::GetVRegOffset(code_item, oat_method.GetCoreSpillMask(), 729 oat_method.GetFpSpillMask(), 730 oat_method.GetFrameSizeInBytes(), reg, 731 GetInstructionSet()); 732 os << " v" << reg << "[sp + #" << offset << "]"; 733 } 734 735 for (size_t out_reg = 0; out_reg < num_outs; out_reg++) { 736 if (out_reg == 0) { 737 os << "\n\touts:"; 738 } 739 740 uint32_t offset = StackVisitor::GetOutVROffset(out_reg, GetInstructionSet()); 741 os << " v" << out_reg << "[sp + #" << offset << "]"; 742 } 743 744 os << "\n"; 745 } 746 } 747 748 void DescribeVReg(std::ostream& os, const OatFile::OatMethod& oat_method, 749 const DexFile::CodeItem* code_item, size_t reg, VRegKind kind) { 750 const uint8_t* raw_table = oat_method.GetVmapTable(); 751 if (raw_table != nullptr) { 752 const VmapTable vmap_table(raw_table); 753 uint32_t vmap_offset; 754 if (vmap_table.IsInContext(reg, kind, &vmap_offset)) { 755 bool is_float = (kind == kFloatVReg) || (kind == kDoubleLoVReg) || (kind == kDoubleHiVReg); 756 uint32_t spill_mask = is_float ? oat_method.GetFpSpillMask() 757 : oat_method.GetCoreSpillMask(); 758 os << (is_float ? "fr" : "r") << vmap_table.ComputeRegister(spill_mask, vmap_offset, kind); 759 } else { 760 uint32_t offset = StackVisitor::GetVRegOffset(code_item, oat_method.GetCoreSpillMask(), 761 oat_method.GetFpSpillMask(), 762 oat_method.GetFrameSizeInBytes(), reg, 763 GetInstructionSet()); 764 os << "[sp + #" << offset << "]"; 765 } 766 } 767 } 768 769 void DumpGcMapRegisters(std::ostream& os, const OatFile::OatMethod& oat_method, 770 const DexFile::CodeItem* code_item, 771 size_t num_regs, const uint8_t* reg_bitmap) { 772 bool first = true; 773 for (size_t reg = 0; reg < num_regs; reg++) { 774 if (((reg_bitmap[reg / 8] >> (reg % 8)) & 0x01) != 0) { 775 if (first) { 776 os << " v" << reg << " ("; 777 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 778 os << ")"; 779 first = false; 780 } else { 781 os << ", v" << reg << " ("; 782 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 783 os << ")"; 784 } 785 } 786 } 787 if (first) { 788 os << "No registers in GC map\n"; 789 } else { 790 os << "\n"; 791 } 792 } 793 void DumpGcMap(std::ostream& os, const OatFile::OatMethod& oat_method, 794 const DexFile::CodeItem* code_item) { 795 const uint8_t* gc_map_raw = oat_method.GetNativeGcMap(); 796 if (gc_map_raw == nullptr) { 797 return; // No GC map. 798 } 799 const void* quick_code = oat_method.GetQuickCode(); 800 if (quick_code != nullptr) { 801 NativePcOffsetToReferenceMap map(gc_map_raw); 802 for (size_t entry = 0; entry < map.NumEntries(); entry++) { 803 const uint8_t* native_pc = reinterpret_cast<const uint8_t*>(quick_code) + 804 map.GetNativePcOffset(entry); 805 os << StringPrintf("%p", native_pc); 806 DumpGcMapRegisters(os, oat_method, code_item, map.RegWidth() * 8, map.GetBitMap(entry)); 807 } 808 } else { 809 const void* portable_code = oat_method.GetPortableCode(); 810 CHECK(portable_code != nullptr); 811 verifier::DexPcToReferenceMap map(gc_map_raw); 812 for (size_t entry = 0; entry < map.NumEntries(); entry++) { 813 uint32_t dex_pc = map.GetDexPc(entry); 814 os << StringPrintf("0x%08x", dex_pc); 815 DumpGcMapRegisters(os, oat_method, code_item, map.RegWidth() * 8, map.GetBitMap(entry)); 816 } 817 } 818 } 819 820 void DumpMappingTable(std::ostream& os, const OatFile::OatMethod& oat_method) { 821 const void* quick_code = oat_method.GetQuickCode(); 822 if (quick_code == nullptr) { 823 return; 824 } 825 MappingTable table(oat_method.GetMappingTable()); 826 if (table.TotalSize() != 0) { 827 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 828 std::ostream indent_os(&indent_filter); 829 if (table.PcToDexSize() != 0) { 830 typedef MappingTable::PcToDexIterator It; 831 os << "suspend point mappings {\n"; 832 for (It cur = table.PcToDexBegin(), end = table.PcToDexEnd(); cur != end; ++cur) { 833 indent_os << StringPrintf("0x%04x -> 0x%04x\n", cur.NativePcOffset(), cur.DexPc()); 834 } 835 os << "}\n"; 836 } 837 if (table.DexToPcSize() != 0) { 838 typedef MappingTable::DexToPcIterator It; 839 os << "catch entry mappings {\n"; 840 for (It cur = table.DexToPcBegin(), end = table.DexToPcEnd(); cur != end; ++cur) { 841 indent_os << StringPrintf("0x%04x -> 0x%04x\n", cur.NativePcOffset(), cur.DexPc()); 842 } 843 os << "}\n"; 844 } 845 } 846 } 847 848 uint32_t DumpMappingAtOffset(std::ostream& os, const OatFile::OatMethod& oat_method, 849 size_t offset, bool suspend_point_mapping) { 850 MappingTable table(oat_method.GetMappingTable()); 851 if (suspend_point_mapping && table.PcToDexSize() > 0) { 852 typedef MappingTable::PcToDexIterator It; 853 for (It cur = table.PcToDexBegin(), end = table.PcToDexEnd(); cur != end; ++cur) { 854 if (offset == cur.NativePcOffset()) { 855 os << StringPrintf("suspend point dex PC: 0x%04x\n", cur.DexPc()); 856 return cur.DexPc(); 857 } 858 } 859 } else if (!suspend_point_mapping && table.DexToPcSize() > 0) { 860 typedef MappingTable::DexToPcIterator It; 861 for (It cur = table.DexToPcBegin(), end = table.DexToPcEnd(); cur != end; ++cur) { 862 if (offset == cur.NativePcOffset()) { 863 os << StringPrintf("catch entry dex PC: 0x%04x\n", cur.DexPc()); 864 return cur.DexPc(); 865 } 866 } 867 } 868 return DexFile::kDexNoIndex; 869 } 870 871 void DumpGcMapAtNativePcOffset(std::ostream& os, const OatFile::OatMethod& oat_method, 872 const DexFile::CodeItem* code_item, size_t native_pc_offset) { 873 const uint8_t* gc_map_raw = oat_method.GetNativeGcMap(); 874 if (gc_map_raw != nullptr) { 875 NativePcOffsetToReferenceMap map(gc_map_raw); 876 if (map.HasEntry(native_pc_offset)) { 877 size_t num_regs = map.RegWidth() * 8; 878 const uint8_t* reg_bitmap = map.FindBitMap(native_pc_offset); 879 bool first = true; 880 for (size_t reg = 0; reg < num_regs; reg++) { 881 if (((reg_bitmap[reg / 8] >> (reg % 8)) & 0x01) != 0) { 882 if (first) { 883 os << "GC map objects: v" << reg << " ("; 884 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 885 os << ")"; 886 first = false; 887 } else { 888 os << ", v" << reg << " ("; 889 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 890 os << ")"; 891 } 892 } 893 } 894 if (!first) { 895 os << "\n"; 896 } 897 } 898 } 899 } 900 901 void DumpVRegsAtDexPc(std::ostream& os, verifier::MethodVerifier* verifier, 902 const OatFile::OatMethod& oat_method, 903 const DexFile::CodeItem* code_item, uint32_t dex_pc) { 904 DCHECK(verifier != nullptr); 905 std::vector<int32_t> kinds = verifier->DescribeVRegs(dex_pc); 906 bool first = true; 907 for (size_t reg = 0; reg < code_item->registers_size_; reg++) { 908 VRegKind kind = static_cast<VRegKind>(kinds.at(reg * 2)); 909 if (kind != kUndefined) { 910 if (first) { 911 os << "VRegs: v"; 912 first = false; 913 } else { 914 os << ", v"; 915 } 916 os << reg << " ("; 917 switch (kind) { 918 case kImpreciseConstant: 919 os << "Imprecise Constant: " << kinds.at((reg * 2) + 1) << ", "; 920 DescribeVReg(os, oat_method, code_item, reg, kind); 921 break; 922 case kConstant: 923 os << "Constant: " << kinds.at((reg * 2) + 1); 924 break; 925 default: 926 DescribeVReg(os, oat_method, code_item, reg, kind); 927 break; 928 } 929 os << ")"; 930 } 931 } 932 if (!first) { 933 os << "\n"; 934 } 935 } 936 937 938 void DumpDexCode(std::ostream& os, const DexFile& dex_file, const DexFile::CodeItem* code_item) { 939 if (code_item != nullptr) { 940 size_t i = 0; 941 while (i < code_item->insns_size_in_code_units_) { 942 const Instruction* instruction = Instruction::At(&code_item->insns_[i]); 943 os << StringPrintf("0x%04zx: %s\n", i, instruction->DumpString(&dex_file).c_str()); 944 i += instruction->SizeInCodeUnits(); 945 } 946 } 947 } 948 949 verifier::MethodVerifier* DumpVerifier(std::ostream& os, uint32_t dex_method_idx, 950 const DexFile* dex_file, 951 const DexFile::ClassDef& class_def, 952 const DexFile::CodeItem* code_item, 953 uint32_t method_access_flags) { 954 if ((method_access_flags & kAccNative) == 0) { 955 ScopedObjectAccess soa(Thread::Current()); 956 StackHandleScope<1> hs(soa.Self()); 957 Handle<mirror::DexCache> dex_cache( 958 hs.NewHandle(Runtime::Current()->GetClassLinker()->FindDexCache(*dex_file))); 959 return verifier::MethodVerifier::VerifyMethodAndDump(soa.Self(), os, dex_method_idx, dex_file, 960 dex_cache, 961 NullHandle<mirror::ClassLoader>(), 962 &class_def, code_item, 963 NullHandle<mirror::ArtMethod>(), 964 method_access_flags); 965 } 966 967 return nullptr; 968 } 969 970 void DumpCode(std::ostream& os, verifier::MethodVerifier* verifier, 971 const OatFile::OatMethod& oat_method, const DexFile::CodeItem* code_item) { 972 const void* portable_code = oat_method.GetPortableCode(); 973 const void* quick_code = oat_method.GetQuickCode(); 974 975 size_t code_size = oat_method.GetQuickCodeSize(); 976 if ((code_size == 0) || ((portable_code == nullptr) && (quick_code == nullptr))) { 977 os << "NO CODE!\n"; 978 return; 979 } else if (quick_code != nullptr) { 980 const uint8_t* quick_native_pc = reinterpret_cast<const uint8_t*>(quick_code); 981 size_t offset = 0; 982 while (offset < code_size) { 983 DumpMappingAtOffset(os, oat_method, offset, false); 984 offset += disassembler_->Dump(os, quick_native_pc + offset); 985 uint32_t dex_pc = DumpMappingAtOffset(os, oat_method, offset, true); 986 if (dex_pc != DexFile::kDexNoIndex) { 987 DumpGcMapAtNativePcOffset(os, oat_method, code_item, offset); 988 if (verifier != nullptr) { 989 DumpVRegsAtDexPc(os, verifier, oat_method, code_item, dex_pc); 990 } 991 } 992 } 993 } else { 994 CHECK(portable_code != nullptr); 995 CHECK_EQ(code_size, 0U); // TODO: disassembly of portable is currently not supported. 996 } 997 } 998 999 const OatFile& oat_file_; 1000 std::vector<const OatFile::OatDexFile*> oat_dex_files_; 1001 bool dump_raw_mapping_table_; 1002 bool dump_raw_gc_map_; 1003 std::set<uintptr_t> offsets_; 1004 std::unique_ptr<Disassembler> disassembler_; 1005}; 1006 1007class ImageDumper { 1008 public: 1009 explicit ImageDumper(std::ostream* os, gc::space::ImageSpace& image_space, 1010 const ImageHeader& image_header, bool dump_raw_mapping_table, 1011 bool dump_raw_gc_map) 1012 : os_(os), image_space_(image_space), image_header_(image_header), 1013 dump_raw_mapping_table_(dump_raw_mapping_table), 1014 dump_raw_gc_map_(dump_raw_gc_map) {} 1015 1016 void Dump() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1017 std::ostream& os = *os_; 1018 os << "MAGIC: " << image_header_.GetMagic() << "\n\n"; 1019 1020 os << "IMAGE BEGIN: " << reinterpret_cast<void*>(image_header_.GetImageBegin()) << "\n\n"; 1021 1022 os << "IMAGE BITMAP OFFSET: " << reinterpret_cast<void*>(image_header_.GetImageBitmapOffset()) 1023 << " SIZE: " << reinterpret_cast<void*>(image_header_.GetImageBitmapSize()) << "\n\n"; 1024 1025 os << "OAT CHECKSUM: " << StringPrintf("0x%08x\n\n", image_header_.GetOatChecksum()); 1026 1027 os << "OAT FILE BEGIN:" << reinterpret_cast<void*>(image_header_.GetOatFileBegin()) << "\n\n"; 1028 1029 os << "OAT DATA BEGIN:" << reinterpret_cast<void*>(image_header_.GetOatDataBegin()) << "\n\n"; 1030 1031 os << "OAT DATA END:" << reinterpret_cast<void*>(image_header_.GetOatDataEnd()) << "\n\n"; 1032 1033 os << "OAT FILE END:" << reinterpret_cast<void*>(image_header_.GetOatFileEnd()) << "\n\n"; 1034 1035 os << "PATCH DELTA:" << image_header_.GetPatchDelta() << "\n\n"; 1036 1037 { 1038 os << "ROOTS: " << reinterpret_cast<void*>(image_header_.GetImageRoots()) << "\n"; 1039 Indenter indent1_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 1040 std::ostream indent1_os(&indent1_filter); 1041 CHECK_EQ(arraysize(image_roots_descriptions_), size_t(ImageHeader::kImageRootsMax)); 1042 for (int i = 0; i < ImageHeader::kImageRootsMax; i++) { 1043 ImageHeader::ImageRoot image_root = static_cast<ImageHeader::ImageRoot>(i); 1044 const char* image_root_description = image_roots_descriptions_[i]; 1045 mirror::Object* image_root_object = image_header_.GetImageRoot(image_root); 1046 indent1_os << StringPrintf("%s: %p\n", image_root_description, image_root_object); 1047 if (image_root_object->IsObjectArray()) { 1048 Indenter indent2_filter(indent1_os.rdbuf(), kIndentChar, kIndentBy1Count); 1049 std::ostream indent2_os(&indent2_filter); 1050 mirror::ObjectArray<mirror::Object>* image_root_object_array 1051 = image_root_object->AsObjectArray<mirror::Object>(); 1052 for (int i = 0; i < image_root_object_array->GetLength(); i++) { 1053 mirror::Object* value = image_root_object_array->Get(i); 1054 size_t run = 0; 1055 for (int32_t j = i + 1; j < image_root_object_array->GetLength(); j++) { 1056 if (value == image_root_object_array->Get(j)) { 1057 run++; 1058 } else { 1059 break; 1060 } 1061 } 1062 if (run == 0) { 1063 indent2_os << StringPrintf("%d: ", i); 1064 } else { 1065 indent2_os << StringPrintf("%d to %zd: ", i, i + run); 1066 i = i + run; 1067 } 1068 if (value != nullptr) { 1069 PrettyObjectValue(indent2_os, value->GetClass(), value); 1070 } else { 1071 indent2_os << i << ": null\n"; 1072 } 1073 } 1074 } 1075 } 1076 } 1077 os << "\n"; 1078 1079 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 1080 std::string image_filename = image_space_.GetImageFilename(); 1081 std::string oat_location = ImageHeader::GetOatLocationFromImageLocation(image_filename); 1082 os << "OAT LOCATION: " << oat_location; 1083 os << "\n"; 1084 std::string error_msg; 1085 const OatFile* oat_file = class_linker->FindOpenedOatFileFromOatLocation(oat_location); 1086 if (oat_file == nullptr) { 1087 oat_file = OatFile::Open(oat_location, oat_location, nullptr, false, &error_msg); 1088 if (oat_file == nullptr) { 1089 os << "NOT FOUND: " << error_msg << "\n"; 1090 return; 1091 } 1092 } 1093 os << "\n"; 1094 1095 stats_.oat_file_bytes = oat_file->Size(); 1096 1097 oat_dumper_.reset(new OatDumper(*oat_file, dump_raw_mapping_table_, 1098 dump_raw_gc_map_)); 1099 1100 for (const OatFile::OatDexFile* oat_dex_file : oat_file->GetOatDexFiles()) { 1101 CHECK(oat_dex_file != nullptr); 1102 stats_.oat_dex_file_sizes.push_back(std::make_pair(oat_dex_file->GetDexFileLocation(), 1103 oat_dex_file->FileSize())); 1104 } 1105 1106 os << "OBJECTS:\n" << std::flush; 1107 1108 // Loop through all the image spaces and dump their objects. 1109 gc::Heap* heap = Runtime::Current()->GetHeap(); 1110 const std::vector<gc::space::ContinuousSpace*>& spaces = heap->GetContinuousSpaces(); 1111 Thread* self = Thread::Current(); 1112 { 1113 { 1114 WriterMutexLock mu(self, *Locks::heap_bitmap_lock_); 1115 heap->FlushAllocStack(); 1116 } 1117 // Since FlushAllocStack() above resets the (active) allocation 1118 // stack. Need to revoke the thread-local allocation stacks that 1119 // point into it. 1120 { 1121 self->TransitionFromRunnableToSuspended(kNative); 1122 ThreadList* thread_list = Runtime::Current()->GetThreadList(); 1123 thread_list->SuspendAll(); 1124 heap->RevokeAllThreadLocalAllocationStacks(self); 1125 thread_list->ResumeAll(); 1126 self->TransitionFromSuspendedToRunnable(); 1127 } 1128 } 1129 { 1130 std::ostream* saved_os = os_; 1131 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 1132 std::ostream indent_os(&indent_filter); 1133 os_ = &indent_os; 1134 ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_); 1135 for (const auto& space : spaces) { 1136 if (space->IsImageSpace()) { 1137 gc::space::ImageSpace* image_space = space->AsImageSpace(); 1138 image_space->GetLiveBitmap()->Walk(ImageDumper::Callback, this); 1139 indent_os << "\n"; 1140 } 1141 } 1142 // Dump the large objects separately. 1143 heap->GetLargeObjectsSpace()->GetLiveBitmap()->Walk(ImageDumper::Callback, this); 1144 indent_os << "\n"; 1145 os_ = saved_os; 1146 } 1147 os << "STATS:\n" << std::flush; 1148 std::unique_ptr<File> file(OS::OpenFileForReading(image_filename.c_str())); 1149 if (file.get() == nullptr) { 1150 LOG(WARNING) << "Failed to find image in " << image_filename; 1151 } 1152 if (file.get() != nullptr) { 1153 stats_.file_bytes = file->GetLength(); 1154 } 1155 size_t header_bytes = sizeof(ImageHeader); 1156 stats_.header_bytes = header_bytes; 1157 size_t alignment_bytes = RoundUp(header_bytes, kObjectAlignment) - header_bytes; 1158 stats_.alignment_bytes += alignment_bytes; 1159 stats_.alignment_bytes += image_header_.GetImageBitmapOffset() - image_header_.GetImageSize(); 1160 stats_.bitmap_bytes += image_header_.GetImageBitmapSize(); 1161 stats_.Dump(os); 1162 os << "\n"; 1163 1164 os << std::flush; 1165 1166 oat_dumper_->Dump(os); 1167 } 1168 1169 private: 1170 static void PrettyObjectValue(std::ostream& os, mirror::Class* type, mirror::Object* value) 1171 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1172 CHECK(type != nullptr); 1173 if (value == nullptr) { 1174 os << StringPrintf("null %s\n", PrettyDescriptor(type).c_str()); 1175 } else if (type->IsStringClass()) { 1176 mirror::String* string = value->AsString(); 1177 os << StringPrintf("%p String: %s\n", string, 1178 PrintableString(string->ToModifiedUtf8().c_str()).c_str()); 1179 } else if (type->IsClassClass()) { 1180 mirror::Class* klass = value->AsClass(); 1181 os << StringPrintf("%p Class: %s\n", klass, PrettyDescriptor(klass).c_str()); 1182 } else if (type->IsArtFieldClass()) { 1183 mirror::ArtField* field = value->AsArtField(); 1184 os << StringPrintf("%p Field: %s\n", field, PrettyField(field).c_str()); 1185 } else if (type->IsArtMethodClass()) { 1186 mirror::ArtMethod* method = value->AsArtMethod(); 1187 os << StringPrintf("%p Method: %s\n", method, PrettyMethod(method).c_str()); 1188 } else { 1189 os << StringPrintf("%p %s\n", value, PrettyDescriptor(type).c_str()); 1190 } 1191 } 1192 1193 static void PrintField(std::ostream& os, mirror::ArtField* field, mirror::Object* obj) 1194 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1195 const char* descriptor = field->GetTypeDescriptor(); 1196 os << StringPrintf("%s: ", field->GetName()); 1197 if (descriptor[0] != 'L' && descriptor[0] != '[') { 1198 StackHandleScope<1> hs(Thread::Current()); 1199 FieldHelper fh(hs.NewHandle(field)); 1200 mirror::Class* type = fh.GetType(); 1201 DCHECK(type->IsPrimitive()); 1202 if (type->IsPrimitiveLong()) { 1203 os << StringPrintf("%" PRId64 " (0x%" PRIx64 ")\n", field->Get64(obj), field->Get64(obj)); 1204 } else if (type->IsPrimitiveDouble()) { 1205 os << StringPrintf("%f (%a)\n", field->GetDouble(obj), field->GetDouble(obj)); 1206 } else if (type->IsPrimitiveFloat()) { 1207 os << StringPrintf("%f (%a)\n", field->GetFloat(obj), field->GetFloat(obj)); 1208 } else if (type->IsPrimitiveInt()) { 1209 os << StringPrintf("%d (0x%x)\n", field->Get32(obj), field->Get32(obj)); 1210 } else if (type->IsPrimitiveChar()) { 1211 os << StringPrintf("%u (0x%x)\n", field->GetChar(obj), field->GetChar(obj)); 1212 } else if (type->IsPrimitiveShort()) { 1213 os << StringPrintf("%d (0x%x)\n", field->GetShort(obj), field->GetShort(obj)); 1214 } else if (type->IsPrimitiveBoolean()) { 1215 os << StringPrintf("%s (0x%x)\n", field->GetBoolean(obj)? "true" : "false", 1216 field->GetBoolean(obj)); 1217 } else if (type->IsPrimitiveByte()) { 1218 os << StringPrintf("%d (0x%x)\n", field->GetByte(obj), field->GetByte(obj)); 1219 } else { 1220 LOG(FATAL) << "Unknown type: " << PrettyClass(type); 1221 } 1222 } else { 1223 // Get the value, don't compute the type unless it is non-null as we don't want 1224 // to cause class loading. 1225 mirror::Object* value = field->GetObj(obj); 1226 if (value == nullptr) { 1227 os << StringPrintf("null %s\n", PrettyDescriptor(descriptor).c_str()); 1228 } else { 1229 // Grab the field type without causing resolution. 1230 StackHandleScope<1> hs(Thread::Current()); 1231 FieldHelper fh(hs.NewHandle(field)); 1232 mirror::Class* field_type = fh.GetType(false); 1233 if (field_type != nullptr) { 1234 PrettyObjectValue(os, field_type, value); 1235 } else { 1236 os << StringPrintf("%p %s\n", value, PrettyDescriptor(descriptor).c_str()); 1237 } 1238 } 1239 } 1240 } 1241 1242 static void DumpFields(std::ostream& os, mirror::Object* obj, mirror::Class* klass) 1243 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1244 mirror::Class* super = klass->GetSuperClass(); 1245 if (super != nullptr) { 1246 DumpFields(os, obj, super); 1247 } 1248 mirror::ObjectArray<mirror::ArtField>* fields = klass->GetIFields(); 1249 if (fields != nullptr) { 1250 for (int32_t i = 0; i < fields->GetLength(); i++) { 1251 mirror::ArtField* field = fields->Get(i); 1252 PrintField(os, field, obj); 1253 } 1254 } 1255 } 1256 1257 bool InDumpSpace(const mirror::Object* object) { 1258 return image_space_.Contains(object); 1259 } 1260 1261 const void* GetQuickOatCodeBegin(mirror::ArtMethod* m) 1262 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1263 const void* quick_code = m->GetEntryPointFromQuickCompiledCode(); 1264 if (quick_code == Runtime::Current()->GetClassLinker()->GetQuickResolutionTrampoline()) { 1265 quick_code = oat_dumper_->GetQuickOatCode(m); 1266 } 1267 if (oat_dumper_->GetInstructionSet() == kThumb2) { 1268 quick_code = reinterpret_cast<void*>(reinterpret_cast<uintptr_t>(quick_code) & ~0x1); 1269 } 1270 return quick_code; 1271 } 1272 1273 uint32_t GetQuickOatCodeSize(mirror::ArtMethod* m) 1274 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1275 const uint32_t* oat_code_begin = reinterpret_cast<const uint32_t*>(GetQuickOatCodeBegin(m)); 1276 if (oat_code_begin == nullptr) { 1277 return 0; 1278 } 1279 return oat_code_begin[-1]; 1280 } 1281 1282 const void* GetQuickOatCodeEnd(mirror::ArtMethod* m) 1283 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1284 const uint8_t* oat_code_begin = reinterpret_cast<const uint8_t*>(GetQuickOatCodeBegin(m)); 1285 if (oat_code_begin == nullptr) { 1286 return nullptr; 1287 } 1288 return oat_code_begin + GetQuickOatCodeSize(m); 1289 } 1290 1291 static void Callback(mirror::Object* obj, void* arg) 1292 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1293 DCHECK(obj != nullptr); 1294 DCHECK(arg != nullptr); 1295 ImageDumper* state = reinterpret_cast<ImageDumper*>(arg); 1296 if (!state->InDumpSpace(obj)) { 1297 return; 1298 } 1299 1300 size_t object_bytes = obj->SizeOf(); 1301 size_t alignment_bytes = RoundUp(object_bytes, kObjectAlignment) - object_bytes; 1302 state->stats_.object_bytes += object_bytes; 1303 state->stats_.alignment_bytes += alignment_bytes; 1304 1305 std::ostream& os = *state->os_; 1306 mirror::Class* obj_class = obj->GetClass(); 1307 if (obj_class->IsArrayClass()) { 1308 os << StringPrintf("%p: %s length:%d\n", obj, PrettyDescriptor(obj_class).c_str(), 1309 obj->AsArray()->GetLength()); 1310 } else if (obj->IsClass()) { 1311 mirror::Class* klass = obj->AsClass(); 1312 os << StringPrintf("%p: java.lang.Class \"%s\" (", obj, PrettyDescriptor(klass).c_str()) 1313 << klass->GetStatus() << ")\n"; 1314 } else if (obj->IsArtField()) { 1315 os << StringPrintf("%p: java.lang.reflect.ArtField %s\n", obj, 1316 PrettyField(obj->AsArtField()).c_str()); 1317 } else if (obj->IsArtMethod()) { 1318 os << StringPrintf("%p: java.lang.reflect.ArtMethod %s\n", obj, 1319 PrettyMethod(obj->AsArtMethod()).c_str()); 1320 } else if (obj_class->IsStringClass()) { 1321 os << StringPrintf("%p: java.lang.String %s\n", obj, 1322 PrintableString(obj->AsString()->ToModifiedUtf8().c_str()).c_str()); 1323 } else { 1324 os << StringPrintf("%p: %s\n", obj, PrettyDescriptor(obj_class).c_str()); 1325 } 1326 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 1327 std::ostream indent_os(&indent_filter); 1328 DumpFields(indent_os, obj, obj_class); 1329 if (obj->IsObjectArray()) { 1330 mirror::ObjectArray<mirror::Object>* obj_array = obj->AsObjectArray<mirror::Object>(); 1331 int32_t length = obj_array->GetLength(); 1332 for (int32_t i = 0; i < length; i++) { 1333 mirror::Object* value = obj_array->Get(i); 1334 size_t run = 0; 1335 for (int32_t j = i + 1; j < length; j++) { 1336 if (value == obj_array->Get(j)) { 1337 run++; 1338 } else { 1339 break; 1340 } 1341 } 1342 if (run == 0) { 1343 indent_os << StringPrintf("%d: ", i); 1344 } else { 1345 indent_os << StringPrintf("%d to %zd: ", i, i + run); 1346 i = i + run; 1347 } 1348 mirror::Class* value_class = 1349 (value == nullptr) ? obj_class->GetComponentType() : value->GetClass(); 1350 PrettyObjectValue(indent_os, value_class, value); 1351 } 1352 } else if (obj->IsClass()) { 1353 mirror::ObjectArray<mirror::ArtField>* sfields = obj->AsClass()->GetSFields(); 1354 if (sfields != nullptr) { 1355 indent_os << "STATICS:\n"; 1356 Indenter indent2_filter(indent_os.rdbuf(), kIndentChar, kIndentBy1Count); 1357 std::ostream indent2_os(&indent2_filter); 1358 for (int32_t i = 0; i < sfields->GetLength(); i++) { 1359 mirror::ArtField* field = sfields->Get(i); 1360 PrintField(indent2_os, field, field->GetDeclaringClass()); 1361 } 1362 } 1363 } else if (obj->IsArtMethod()) { 1364 mirror::ArtMethod* method = obj->AsArtMethod(); 1365 if (method->IsNative()) { 1366 // TODO: portable dumping. 1367 DCHECK(method->GetNativeGcMap() == nullptr) << PrettyMethod(method); 1368 DCHECK(method->GetMappingTable() == nullptr) << PrettyMethod(method); 1369 bool first_occurrence; 1370 const void* quick_oat_code = state->GetQuickOatCodeBegin(method); 1371 uint32_t quick_oat_code_size = state->GetQuickOatCodeSize(method); 1372 state->ComputeOatSize(quick_oat_code, &first_occurrence); 1373 if (first_occurrence) { 1374 state->stats_.native_to_managed_code_bytes += quick_oat_code_size; 1375 } 1376 if (quick_oat_code != method->GetEntryPointFromQuickCompiledCode()) { 1377 indent_os << StringPrintf("OAT CODE: %p\n", quick_oat_code); 1378 } 1379 } else if (method->IsAbstract() || method->IsCalleeSaveMethod() || 1380 method->IsResolutionMethod() || method->IsImtConflictMethod() || 1381 method->IsClassInitializer()) { 1382 DCHECK(method->GetNativeGcMap() == nullptr) << PrettyMethod(method); 1383 DCHECK(method->GetMappingTable() == nullptr) << PrettyMethod(method); 1384 } else { 1385 const DexFile::CodeItem* code_item = method->GetCodeItem(); 1386 size_t dex_instruction_bytes = code_item->insns_size_in_code_units_ * 2; 1387 state->stats_.dex_instruction_bytes += dex_instruction_bytes; 1388 1389 bool first_occurrence; 1390 size_t gc_map_bytes = state->ComputeOatSize(method->GetNativeGcMap(), &first_occurrence); 1391 if (first_occurrence) { 1392 state->stats_.gc_map_bytes += gc_map_bytes; 1393 } 1394 1395 size_t pc_mapping_table_bytes = 1396 state->ComputeOatSize(method->GetMappingTable(), &first_occurrence); 1397 if (first_occurrence) { 1398 state->stats_.pc_mapping_table_bytes += pc_mapping_table_bytes; 1399 } 1400 1401 size_t vmap_table_bytes = 1402 state->ComputeOatSize(method->GetVmapTable(), &first_occurrence); 1403 if (first_occurrence) { 1404 state->stats_.vmap_table_bytes += vmap_table_bytes; 1405 } 1406 1407 // TODO: portable dumping. 1408 const void* quick_oat_code_begin = state->GetQuickOatCodeBegin(method); 1409 const void* quick_oat_code_end = state->GetQuickOatCodeEnd(method); 1410 uint32_t quick_oat_code_size = state->GetQuickOatCodeSize(method); 1411 state->ComputeOatSize(quick_oat_code_begin, &first_occurrence); 1412 if (first_occurrence) { 1413 state->stats_.managed_code_bytes += quick_oat_code_size; 1414 if (method->IsConstructor()) { 1415 if (method->IsStatic()) { 1416 state->stats_.class_initializer_code_bytes += quick_oat_code_size; 1417 } else if (dex_instruction_bytes > kLargeConstructorDexBytes) { 1418 state->stats_.large_initializer_code_bytes += quick_oat_code_size; 1419 } 1420 } else if (dex_instruction_bytes > kLargeMethodDexBytes) { 1421 state->stats_.large_method_code_bytes += quick_oat_code_size; 1422 } 1423 } 1424 state->stats_.managed_code_bytes_ignoring_deduplication += quick_oat_code_size; 1425 1426 indent_os << StringPrintf("OAT CODE: %p-%p\n", quick_oat_code_begin, quick_oat_code_end); 1427 indent_os << StringPrintf("SIZE: Dex Instructions=%zd GC=%zd Mapping=%zd\n", 1428 dex_instruction_bytes, gc_map_bytes, pc_mapping_table_bytes); 1429 1430 size_t total_size = dex_instruction_bytes + gc_map_bytes + pc_mapping_table_bytes + 1431 vmap_table_bytes + quick_oat_code_size + object_bytes; 1432 1433 double expansion = 1434 static_cast<double>(quick_oat_code_size) / static_cast<double>(dex_instruction_bytes); 1435 state->stats_.ComputeOutliers(total_size, expansion, method); 1436 } 1437 } 1438 std::string temp; 1439 state->stats_.Update(obj_class->GetDescriptor(&temp), object_bytes); 1440 } 1441 1442 std::set<const void*> already_seen_; 1443 // Compute the size of the given data within the oat file and whether this is the first time 1444 // this data has been requested 1445 size_t ComputeOatSize(const void* oat_data, bool* first_occurrence) { 1446 if (already_seen_.count(oat_data) == 0) { 1447 *first_occurrence = true; 1448 already_seen_.insert(oat_data); 1449 } else { 1450 *first_occurrence = false; 1451 } 1452 return oat_dumper_->ComputeSize(oat_data); 1453 } 1454 1455 public: 1456 struct Stats { 1457 size_t oat_file_bytes; 1458 size_t file_bytes; 1459 1460 size_t header_bytes; 1461 size_t object_bytes; 1462 size_t bitmap_bytes; 1463 size_t alignment_bytes; 1464 1465 size_t managed_code_bytes; 1466 size_t managed_code_bytes_ignoring_deduplication; 1467 size_t managed_to_native_code_bytes; 1468 size_t native_to_managed_code_bytes; 1469 size_t class_initializer_code_bytes; 1470 size_t large_initializer_code_bytes; 1471 size_t large_method_code_bytes; 1472 1473 size_t gc_map_bytes; 1474 size_t pc_mapping_table_bytes; 1475 size_t vmap_table_bytes; 1476 1477 size_t dex_instruction_bytes; 1478 1479 std::vector<mirror::ArtMethod*> method_outlier; 1480 std::vector<size_t> method_outlier_size; 1481 std::vector<double> method_outlier_expansion; 1482 std::vector<std::pair<std::string, size_t>> oat_dex_file_sizes; 1483 1484 explicit Stats() 1485 : oat_file_bytes(0), 1486 file_bytes(0), 1487 header_bytes(0), 1488 object_bytes(0), 1489 bitmap_bytes(0), 1490 alignment_bytes(0), 1491 managed_code_bytes(0), 1492 managed_code_bytes_ignoring_deduplication(0), 1493 managed_to_native_code_bytes(0), 1494 native_to_managed_code_bytes(0), 1495 class_initializer_code_bytes(0), 1496 large_initializer_code_bytes(0), 1497 large_method_code_bytes(0), 1498 gc_map_bytes(0), 1499 pc_mapping_table_bytes(0), 1500 vmap_table_bytes(0), 1501 dex_instruction_bytes(0) {} 1502 1503 struct SizeAndCount { 1504 SizeAndCount(size_t bytes, size_t count) : bytes(bytes), count(count) {} 1505 size_t bytes; 1506 size_t count; 1507 }; 1508 typedef SafeMap<std::string, SizeAndCount> SizeAndCountTable; 1509 SizeAndCountTable sizes_and_counts; 1510 1511 void Update(const char* descriptor, size_t object_bytes) { 1512 SizeAndCountTable::iterator it = sizes_and_counts.find(descriptor); 1513 if (it != sizes_and_counts.end()) { 1514 it->second.bytes += object_bytes; 1515 it->second.count += 1; 1516 } else { 1517 sizes_and_counts.Put(descriptor, SizeAndCount(object_bytes, 1)); 1518 } 1519 } 1520 1521 double PercentOfOatBytes(size_t size) { 1522 return (static_cast<double>(size) / static_cast<double>(oat_file_bytes)) * 100; 1523 } 1524 1525 double PercentOfFileBytes(size_t size) { 1526 return (static_cast<double>(size) / static_cast<double>(file_bytes)) * 100; 1527 } 1528 1529 double PercentOfObjectBytes(size_t size) { 1530 return (static_cast<double>(size) / static_cast<double>(object_bytes)) * 100; 1531 } 1532 1533 void ComputeOutliers(size_t total_size, double expansion, mirror::ArtMethod* method) { 1534 method_outlier_size.push_back(total_size); 1535 method_outlier_expansion.push_back(expansion); 1536 method_outlier.push_back(method); 1537 } 1538 1539 void DumpOutliers(std::ostream& os) 1540 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1541 size_t sum_of_sizes = 0; 1542 size_t sum_of_sizes_squared = 0; 1543 size_t sum_of_expansion = 0; 1544 size_t sum_of_expansion_squared = 0; 1545 size_t n = method_outlier_size.size(); 1546 for (size_t i = 0; i < n; i++) { 1547 size_t cur_size = method_outlier_size[i]; 1548 sum_of_sizes += cur_size; 1549 sum_of_sizes_squared += cur_size * cur_size; 1550 double cur_expansion = method_outlier_expansion[i]; 1551 sum_of_expansion += cur_expansion; 1552 sum_of_expansion_squared += cur_expansion * cur_expansion; 1553 } 1554 size_t size_mean = sum_of_sizes / n; 1555 size_t size_variance = (sum_of_sizes_squared - sum_of_sizes * size_mean) / (n - 1); 1556 double expansion_mean = sum_of_expansion / n; 1557 double expansion_variance = 1558 (sum_of_expansion_squared - sum_of_expansion * expansion_mean) / (n - 1); 1559 1560 // Dump methods whose size is a certain number of standard deviations from the mean 1561 size_t dumped_values = 0; 1562 size_t skipped_values = 0; 1563 for (size_t i = 100; i > 0; i--) { // i is the current number of standard deviations 1564 size_t cur_size_variance = i * i * size_variance; 1565 bool first = true; 1566 for (size_t j = 0; j < n; j++) { 1567 size_t cur_size = method_outlier_size[j]; 1568 if (cur_size > size_mean) { 1569 size_t cur_var = cur_size - size_mean; 1570 cur_var = cur_var * cur_var; 1571 if (cur_var > cur_size_variance) { 1572 if (dumped_values > 20) { 1573 if (i == 1) { 1574 skipped_values++; 1575 } else { 1576 i = 2; // jump to counting for 1 standard deviation 1577 break; 1578 } 1579 } else { 1580 if (first) { 1581 os << "\nBig methods (size > " << i << " standard deviations the norm):\n"; 1582 first = false; 1583 } 1584 os << PrettyMethod(method_outlier[j]) << " requires storage of " 1585 << PrettySize(cur_size) << "\n"; 1586 method_outlier_size[j] = 0; // don't consider this method again 1587 dumped_values++; 1588 } 1589 } 1590 } 1591 } 1592 } 1593 if (skipped_values > 0) { 1594 os << "... skipped " << skipped_values 1595 << " methods with size > 1 standard deviation from the norm\n"; 1596 } 1597 os << std::flush; 1598 1599 // Dump methods whose expansion is a certain number of standard deviations from the mean 1600 dumped_values = 0; 1601 skipped_values = 0; 1602 for (size_t i = 10; i > 0; i--) { // i is the current number of standard deviations 1603 double cur_expansion_variance = i * i * expansion_variance; 1604 bool first = true; 1605 for (size_t j = 0; j < n; j++) { 1606 double cur_expansion = method_outlier_expansion[j]; 1607 if (cur_expansion > expansion_mean) { 1608 size_t cur_var = cur_expansion - expansion_mean; 1609 cur_var = cur_var * cur_var; 1610 if (cur_var > cur_expansion_variance) { 1611 if (dumped_values > 20) { 1612 if (i == 1) { 1613 skipped_values++; 1614 } else { 1615 i = 2; // jump to counting for 1 standard deviation 1616 break; 1617 } 1618 } else { 1619 if (first) { 1620 os << "\nLarge expansion methods (size > " << i 1621 << " standard deviations the norm):\n"; 1622 first = false; 1623 } 1624 os << PrettyMethod(method_outlier[j]) << " expanded code by " 1625 << cur_expansion << "\n"; 1626 method_outlier_expansion[j] = 0.0; // don't consider this method again 1627 dumped_values++; 1628 } 1629 } 1630 } 1631 } 1632 } 1633 if (skipped_values > 0) { 1634 os << "... skipped " << skipped_values 1635 << " methods with expansion > 1 standard deviation from the norm\n"; 1636 } 1637 os << "\n" << std::flush; 1638 } 1639 1640 void Dump(std::ostream& os) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1641 { 1642 os << "art_file_bytes = " << PrettySize(file_bytes) << "\n\n" 1643 << "art_file_bytes = header_bytes + object_bytes + alignment_bytes\n"; 1644 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 1645 std::ostream indent_os(&indent_filter); 1646 indent_os << StringPrintf("header_bytes = %8zd (%2.0f%% of art file bytes)\n" 1647 "object_bytes = %8zd (%2.0f%% of art file bytes)\n" 1648 "bitmap_bytes = %8zd (%2.0f%% of art file bytes)\n" 1649 "alignment_bytes = %8zd (%2.0f%% of art file bytes)\n\n", 1650 header_bytes, PercentOfFileBytes(header_bytes), 1651 object_bytes, PercentOfFileBytes(object_bytes), 1652 bitmap_bytes, PercentOfFileBytes(bitmap_bytes), 1653 alignment_bytes, PercentOfFileBytes(alignment_bytes)) 1654 << std::flush; 1655 CHECK_EQ(file_bytes, bitmap_bytes + header_bytes + object_bytes + alignment_bytes); 1656 } 1657 1658 os << "object_bytes breakdown:\n"; 1659 size_t object_bytes_total = 0; 1660 for (const auto& sizes_and_count : sizes_and_counts) { 1661 const std::string& descriptor(sizes_and_count.first); 1662 double average = static_cast<double>(sizes_and_count.second.bytes) / 1663 static_cast<double>(sizes_and_count.second.count); 1664 double percent = PercentOfObjectBytes(sizes_and_count.second.bytes); 1665 os << StringPrintf("%32s %8zd bytes %6zd instances " 1666 "(%4.0f bytes/instance) %2.0f%% of object_bytes\n", 1667 descriptor.c_str(), sizes_and_count.second.bytes, 1668 sizes_and_count.second.count, average, percent); 1669 object_bytes_total += sizes_and_count.second.bytes; 1670 } 1671 os << "\n" << std::flush; 1672 CHECK_EQ(object_bytes, object_bytes_total); 1673 1674 os << StringPrintf("oat_file_bytes = %8zd\n" 1675 "managed_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1676 "managed_to_native_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1677 "native_to_managed_code_bytes = %8zd (%2.0f%% of oat file bytes)\n\n" 1678 "class_initializer_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1679 "large_initializer_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1680 "large_method_code_bytes = %8zd (%2.0f%% of oat file bytes)\n\n", 1681 oat_file_bytes, 1682 managed_code_bytes, 1683 PercentOfOatBytes(managed_code_bytes), 1684 managed_to_native_code_bytes, 1685 PercentOfOatBytes(managed_to_native_code_bytes), 1686 native_to_managed_code_bytes, 1687 PercentOfOatBytes(native_to_managed_code_bytes), 1688 class_initializer_code_bytes, 1689 PercentOfOatBytes(class_initializer_code_bytes), 1690 large_initializer_code_bytes, 1691 PercentOfOatBytes(large_initializer_code_bytes), 1692 large_method_code_bytes, 1693 PercentOfOatBytes(large_method_code_bytes)) 1694 << "DexFile sizes:\n"; 1695 for (const std::pair<std::string, size_t>& oat_dex_file_size : oat_dex_file_sizes) { 1696 os << StringPrintf("%s = %zd (%2.0f%% of oat file bytes)\n", 1697 oat_dex_file_size.first.c_str(), oat_dex_file_size.second, 1698 PercentOfOatBytes(oat_dex_file_size.second)); 1699 } 1700 1701 os << "\n" << StringPrintf("gc_map_bytes = %7zd (%2.0f%% of oat file bytes)\n" 1702 "pc_mapping_table_bytes = %7zd (%2.0f%% of oat file bytes)\n" 1703 "vmap_table_bytes = %7zd (%2.0f%% of oat file bytes)\n\n", 1704 gc_map_bytes, PercentOfOatBytes(gc_map_bytes), 1705 pc_mapping_table_bytes, PercentOfOatBytes(pc_mapping_table_bytes), 1706 vmap_table_bytes, PercentOfOatBytes(vmap_table_bytes)) 1707 << std::flush; 1708 1709 os << StringPrintf("dex_instruction_bytes = %zd\n", dex_instruction_bytes) 1710 << StringPrintf("managed_code_bytes expansion = %.2f (ignoring deduplication %.2f)\n\n", 1711 static_cast<double>(managed_code_bytes) / 1712 static_cast<double>(dex_instruction_bytes), 1713 static_cast<double>(managed_code_bytes_ignoring_deduplication) / 1714 static_cast<double>(dex_instruction_bytes)) 1715 << std::flush; 1716 1717 DumpOutliers(os); 1718 } 1719 } stats_; 1720 1721 private: 1722 enum { 1723 // Number of bytes for a constructor to be considered large. Based on the 1000 basic block 1724 // threshold, we assume 2 bytes per instruction and 2 instructions per block. 1725 kLargeConstructorDexBytes = 4000, 1726 // Number of bytes for a method to be considered large. Based on the 4000 basic block 1727 // threshold, we assume 2 bytes per instruction and 2 instructions per block. 1728 kLargeMethodDexBytes = 16000 1729 }; 1730 std::unique_ptr<OatDumper> oat_dumper_; 1731 std::ostream* os_; 1732 gc::space::ImageSpace& image_space_; 1733 const ImageHeader& image_header_; 1734 bool dump_raw_mapping_table_; 1735 bool dump_raw_gc_map_; 1736 1737 DISALLOW_COPY_AND_ASSIGN(ImageDumper); 1738}; 1739 1740static int oatdump(int argc, char** argv) { 1741 InitLogging(argv); 1742 1743 // Skip over argv[0]. 1744 argv++; 1745 argc--; 1746 1747 if (argc == 0) { 1748 fprintf(stderr, "No arguments specified\n"); 1749 usage(); 1750 } 1751 1752 const char* oat_filename = nullptr; 1753 const char* image_location = nullptr; 1754 const char* boot_image_location = nullptr; 1755 InstructionSet instruction_set = kRuntimeISA; 1756 std::string elf_filename_prefix; 1757 std::ostream* os = &std::cout; 1758 std::unique_ptr<std::ofstream> out; 1759 std::string output_name; 1760 bool dump_raw_mapping_table = false; 1761 bool dump_raw_gc_map = false; 1762 bool symbolize = false; 1763 1764 for (int i = 0; i < argc; i++) { 1765 const StringPiece option(argv[i]); 1766 if (option.starts_with("--oat-file=")) { 1767 oat_filename = option.substr(strlen("--oat-file=")).data(); 1768 } else if (option.starts_with("--image=")) { 1769 image_location = option.substr(strlen("--image=")).data(); 1770 } else if (option.starts_with("--boot-image=")) { 1771 boot_image_location = option.substr(strlen("--boot-image=")).data(); 1772 } else if (option.starts_with("--instruction-set=")) { 1773 StringPiece instruction_set_str = option.substr(strlen("--instruction-set=")).data(); 1774 if (instruction_set_str == "arm") { 1775 instruction_set = kThumb2; 1776 } else if (instruction_set_str == "arm64") { 1777 instruction_set = kArm64; 1778 } else if (instruction_set_str == "mips") { 1779 instruction_set = kMips; 1780 } else if (instruction_set_str == "x86") { 1781 instruction_set = kX86; 1782 } else if (instruction_set_str == "x86_64") { 1783 instruction_set = kX86_64; 1784 } 1785 } else if (option.starts_with("--dump:")) { 1786 if (option == "--dump:raw_mapping_table") { 1787 dump_raw_mapping_table = true; 1788 } else if (option == "--dump:raw_gc_map") { 1789 dump_raw_gc_map = true; 1790 } else { 1791 fprintf(stderr, "Unknown argument %s\n", option.data()); 1792 usage(); 1793 } 1794 } else if (option.starts_with("--output=")) { 1795 output_name = option.substr(strlen("--output=")).ToString(); 1796 const char* filename = output_name.c_str(); 1797 out.reset(new std::ofstream(filename)); 1798 if (!out->good()) { 1799 fprintf(stderr, "Failed to open output filename %s\n", filename); 1800 usage(); 1801 } 1802 os = out.get(); 1803 } else if (option.starts_with("--symbolize=")) { 1804 oat_filename = option.substr(strlen("--symbolize=")).data(); 1805 symbolize = true; 1806 } else { 1807 fprintf(stderr, "Unknown argument %s\n", option.data()); 1808 usage(); 1809 } 1810 } 1811 1812 if (image_location == nullptr && oat_filename == nullptr) { 1813 fprintf(stderr, "Either --image or --oat must be specified\n"); 1814 return EXIT_FAILURE; 1815 } 1816 1817 if (image_location != nullptr && oat_filename != nullptr) { 1818 fprintf(stderr, "Either --image or --oat must be specified but not both\n"); 1819 return EXIT_FAILURE; 1820 } 1821 1822 if (oat_filename != nullptr) { 1823 std::string error_msg; 1824 OatFile* oat_file = 1825 OatFile::Open(oat_filename, oat_filename, nullptr, false, &error_msg); 1826 if (oat_file == nullptr) { 1827 fprintf(stderr, "Failed to open oat file from '%s': %s\n", oat_filename, error_msg.c_str()); 1828 return EXIT_FAILURE; 1829 } 1830 if (symbolize) { 1831 OatSymbolizer oat_symbolizer(oat_file, output_name); 1832 if (!oat_symbolizer.Init()) { 1833 fprintf(stderr, "Failed to initialize symbolizer\n"); 1834 return EXIT_FAILURE; 1835 } 1836 if (!oat_symbolizer.Symbolize()) { 1837 fprintf(stderr, "Failed to symbolize\n"); 1838 return EXIT_FAILURE; 1839 } 1840 } else { 1841 OatDumper oat_dumper(*oat_file, dump_raw_mapping_table, dump_raw_gc_map); 1842 oat_dumper.Dump(*os); 1843 } 1844 return EXIT_SUCCESS; 1845 } 1846 1847 RuntimeOptions options; 1848 std::string image_option; 1849 std::string oat_option; 1850 std::string boot_image_option; 1851 std::string boot_oat_option; 1852 1853 // We are more like a compiler than a run-time. We don't want to execute code. 1854 NoopCompilerCallbacks callbacks; 1855 options.push_back(std::make_pair("compilercallbacks", &callbacks)); 1856 1857 if (boot_image_location != nullptr) { 1858 boot_image_option += "-Ximage:"; 1859 boot_image_option += boot_image_location; 1860 options.push_back(std::make_pair(boot_image_option.c_str(), nullptr)); 1861 } 1862 if (image_location != nullptr) { 1863 image_option += "-Ximage:"; 1864 image_option += image_location; 1865 options.push_back(std::make_pair(image_option.c_str(), nullptr)); 1866 } 1867 options.push_back( 1868 std::make_pair("imageinstructionset", 1869 reinterpret_cast<const void*>(GetInstructionSetString(instruction_set)))); 1870 1871 if (!Runtime::Create(options, false)) { 1872 fprintf(stderr, "Failed to create runtime\n"); 1873 return EXIT_FAILURE; 1874 } 1875 std::unique_ptr<Runtime> runtime(Runtime::Current()); 1876 // Runtime::Create acquired the mutator_lock_ that is normally given away when we Runtime::Start, 1877 // give it away now and then switch to a more manageable ScopedObjectAccess. 1878 Thread::Current()->TransitionFromRunnableToSuspended(kNative); 1879 ScopedObjectAccess soa(Thread::Current()); 1880 gc::Heap* heap = Runtime::Current()->GetHeap(); 1881 gc::space::ImageSpace* image_space = heap->GetImageSpace(); 1882 CHECK(image_space != nullptr); 1883 const ImageHeader& image_header = image_space->GetImageHeader(); 1884 if (!image_header.IsValid()) { 1885 fprintf(stderr, "Invalid image header %s\n", image_location); 1886 return EXIT_FAILURE; 1887 } 1888 ImageDumper image_dumper(os, *image_space, image_header, 1889 dump_raw_mapping_table, dump_raw_gc_map); 1890 image_dumper.Dump(); 1891 return EXIT_SUCCESS; 1892} 1893 1894} // namespace art 1895 1896int main(int argc, char** argv) { 1897 return art::oatdump(argc, argv); 1898} 1899