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 <vector> 24 25 #include "base/stringpiece.h" 26 #include "base/unix_file/fd_file.h" 27 #include "class_linker.h" 28 #include "class_linker-inl.h" 29 #include "dex_file-inl.h" 30 #include "dex_instruction.h" 31 #include "disassembler.h" 32 #include "field_helper.h" 33 #include "gc_map.h" 34 #include "gc/space/image_space.h" 35 #include "gc/space/large_object_space.h" 36 #include "gc/space/space-inl.h" 37 #include "image.h" 38 #include "indenter.h" 39 #include "mapping_table.h" 40 #include "mirror/art_field-inl.h" 41 #include "mirror/art_method-inl.h" 42 #include "mirror/array-inl.h" 43 #include "mirror/class-inl.h" 44 #include "mirror/object-inl.h" 45 #include "mirror/object_array-inl.h" 46 #include "noop_compiler_callbacks.h" 47 #include "oat.h" 48 #include "oat_file-inl.h" 49 #include "os.h" 50 #include "runtime.h" 51 #include "safe_map.h" 52 #include "scoped_thread_state_change.h" 53 #include "thread_list.h" 54 #include "verifier/dex_gc_map.h" 55 #include "verifier/method_verifier.h" 56 #include "vmap_table.h" 57 58 namespace art { 59 60 static void usage() { 61 fprintf(stderr, 62 "Usage: oatdump [options] ...\n" 63 " Example: oatdump --image=$ANDROID_PRODUCT_OUT/system/framework/boot.art\n" 64 " Example: adb shell oatdump --image=/system/framework/boot.art\n" 65 "\n"); 66 fprintf(stderr, 67 " --oat-file=<file.oat>: specifies an input oat filename.\n" 68 " Example: --oat-file=/system/framework/boot.oat\n" 69 "\n"); 70 fprintf(stderr, 71 " --image=<file.art>: specifies an input image filename.\n" 72 " Example: --image=/system/framework/boot.art\n" 73 "\n"); 74 fprintf(stderr, 75 " --boot-image=<file.art>: provide the image file for the boot class path.\n" 76 " Example: --boot-image=/system/framework/boot.art\n" 77 "\n"); 78 fprintf(stderr, 79 " --instruction-set=(arm|arm64|mips|x86|x86_64): for locating the image\n" 80 " file based on the image location set.\n" 81 " Example: --instruction-set=x86\n" 82 " Default: %s\n" 83 "\n", 84 GetInstructionSetString(kRuntimeISA)); 85 fprintf(stderr, 86 " --output=<file> may be used to send the output to a file.\n" 87 " Example: --output=/tmp/oatdump.txt\n" 88 "\n"); 89 fprintf(stderr, 90 " --dump:raw_mapping_table enables dumping of the mapping table.\n" 91 " Example: --dump:raw_mapping_table\n" 92 "\n"); 93 fprintf(stderr, 94 " --dump:raw_mapping_table enables dumping of the GC map.\n" 95 " Example: --dump:raw_gc_map\n" 96 "\n"); 97 fprintf(stderr, 98 " --no-dump:vmap may be used to disable vmap dumping.\n" 99 " Example: --no-dump:vmap\n" 100 "\n"); 101 fprintf(stderr, 102 " --no-disassemble may be used to disable disassembly.\n" 103 " Example: --no-disassemble\n" 104 "\n"); 105 exit(EXIT_FAILURE); 106 } 107 108 const char* image_roots_descriptions_[] = { 109 "kResolutionMethod", 110 "kImtConflictMethod", 111 "kDefaultImt", 112 "kCalleeSaveMethod", 113 "kRefsOnlySaveMethod", 114 "kRefsAndArgsSaveMethod", 115 "kDexCaches", 116 "kClassRoots", 117 }; 118 119 class OatDumperOptions { 120 public: 121 OatDumperOptions(bool dump_raw_mapping_table, 122 bool dump_raw_gc_map, 123 bool dump_vmap, 124 bool disassemble_code, 125 bool absolute_addresses) 126 : dump_raw_mapping_table_(dump_raw_mapping_table), 127 dump_raw_gc_map_(dump_raw_gc_map), 128 dump_vmap_(dump_vmap), 129 disassemble_code_(disassemble_code), 130 absolute_addresses_(absolute_addresses) {} 131 132 const bool dump_raw_mapping_table_; 133 const bool dump_raw_gc_map_; 134 const bool dump_vmap_; 135 const bool disassemble_code_; 136 const bool absolute_addresses_; 137 }; 138 139 class OatDumper { 140 public: 141 explicit OatDumper(const OatFile& oat_file, OatDumperOptions* options) 142 : oat_file_(oat_file), 143 oat_dex_files_(oat_file.GetOatDexFiles()), 144 options_(options), 145 disassembler_(Disassembler::Create(oat_file_.GetOatHeader().GetInstructionSet(), 146 new DisassemblerOptions(options_->absolute_addresses_, 147 oat_file.Begin()))) { 148 AddAllOffsets(); 149 } 150 151 ~OatDumper() { 152 delete options_; 153 delete disassembler_; 154 } 155 156 bool Dump(std::ostream& os) { 157 bool success = true; 158 const OatHeader& oat_header = oat_file_.GetOatHeader(); 159 160 os << "MAGIC:\n"; 161 os << oat_header.GetMagic() << "\n\n"; 162 163 os << "CHECKSUM:\n"; 164 os << StringPrintf("0x%08x\n\n", oat_header.GetChecksum()); 165 166 os << "INSTRUCTION SET:\n"; 167 os << oat_header.GetInstructionSet() << "\n\n"; 168 169 os << "INSTRUCTION SET FEATURES:\n"; 170 os << oat_header.GetInstructionSetFeatures().GetFeatureString() << "\n\n"; 171 172 os << "DEX FILE COUNT:\n"; 173 os << oat_header.GetDexFileCount() << "\n\n"; 174 175 #define DUMP_OAT_HEADER_OFFSET(label, offset) \ 176 os << label " OFFSET:\n"; \ 177 os << StringPrintf("0x%08x", oat_header.offset()); \ 178 if (oat_header.offset() != 0 && options_->absolute_addresses_) { \ 179 os << StringPrintf(" (%p)", oat_file_.Begin() + oat_header.offset()); \ 180 } \ 181 os << StringPrintf("\n\n"); 182 183 DUMP_OAT_HEADER_OFFSET("EXECUTABLE", GetExecutableOffset); 184 DUMP_OAT_HEADER_OFFSET("INTERPRETER TO INTERPRETER BRIDGE", 185 GetInterpreterToInterpreterBridgeOffset); 186 DUMP_OAT_HEADER_OFFSET("INTERPRETER TO COMPILED CODE BRIDGE", 187 GetInterpreterToCompiledCodeBridgeOffset); 188 DUMP_OAT_HEADER_OFFSET("JNI DLSYM LOOKUP", 189 GetJniDlsymLookupOffset); 190 DUMP_OAT_HEADER_OFFSET("PORTABLE IMT CONFLICT TRAMPOLINE", 191 GetPortableImtConflictTrampolineOffset); 192 DUMP_OAT_HEADER_OFFSET("PORTABLE RESOLUTION TRAMPOLINE", 193 GetPortableResolutionTrampolineOffset); 194 DUMP_OAT_HEADER_OFFSET("PORTABLE TO INTERPRETER BRIDGE", 195 GetPortableToInterpreterBridgeOffset); 196 DUMP_OAT_HEADER_OFFSET("QUICK GENERIC JNI TRAMPOLINE", 197 GetQuickGenericJniTrampolineOffset); 198 DUMP_OAT_HEADER_OFFSET("QUICK IMT CONFLICT TRAMPOLINE", 199 GetQuickImtConflictTrampolineOffset); 200 DUMP_OAT_HEADER_OFFSET("QUICK RESOLUTION TRAMPOLINE", 201 GetQuickResolutionTrampolineOffset); 202 DUMP_OAT_HEADER_OFFSET("QUICK TO INTERPRETER BRIDGE", 203 GetQuickToInterpreterBridgeOffset); 204 #undef DUMP_OAT_HEADER_OFFSET 205 206 os << "IMAGE PATCH DELTA:\n"; 207 os << StringPrintf("%d (0x%08x)\n\n", 208 oat_header.GetImagePatchDelta(), 209 oat_header.GetImagePatchDelta()); 210 211 os << "IMAGE FILE LOCATION OAT CHECKSUM:\n"; 212 os << StringPrintf("0x%08x\n\n", oat_header.GetImageFileLocationOatChecksum()); 213 214 os << "IMAGE FILE LOCATION OAT BEGIN:\n"; 215 os << StringPrintf("0x%08x\n\n", oat_header.GetImageFileLocationOatDataBegin()); 216 217 // Print the key-value store. 218 { 219 os << "KEY VALUE STORE:\n"; 220 size_t index = 0; 221 const char* key; 222 const char* value; 223 while (oat_header.GetStoreKeyValuePairByIndex(index, &key, &value)) { 224 os << key << " = " << value << "\n"; 225 index++; 226 } 227 os << "\n"; 228 } 229 230 if (options_->absolute_addresses_) { 231 os << "BEGIN:\n"; 232 os << reinterpret_cast<const void*>(oat_file_.Begin()) << "\n\n"; 233 234 os << "END:\n"; 235 os << reinterpret_cast<const void*>(oat_file_.End()) << "\n\n"; 236 } 237 238 os << "SIZE:\n"; 239 os << oat_file_.Size() << "\n\n"; 240 241 os << std::flush; 242 243 for (size_t i = 0; i < oat_dex_files_.size(); i++) { 244 const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i]; 245 CHECK(oat_dex_file != nullptr); 246 if (!DumpOatDexFile(os, *oat_dex_file)) { 247 success = false; 248 } 249 } 250 os << std::flush; 251 return success; 252 } 253 254 size_t ComputeSize(const void* oat_data) { 255 if (reinterpret_cast<const byte*>(oat_data) < oat_file_.Begin() || 256 reinterpret_cast<const byte*>(oat_data) > oat_file_.End()) { 257 return 0; // Address not in oat file 258 } 259 uintptr_t begin_offset = reinterpret_cast<uintptr_t>(oat_data) - 260 reinterpret_cast<uintptr_t>(oat_file_.Begin()); 261 auto it = offsets_.upper_bound(begin_offset); 262 CHECK(it != offsets_.end()); 263 uintptr_t end_offset = *it; 264 return end_offset - begin_offset; 265 } 266 267 InstructionSet GetInstructionSet() { 268 return oat_file_.GetOatHeader().GetInstructionSet(); 269 } 270 271 const void* GetQuickOatCode(mirror::ArtMethod* m) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 272 for (size_t i = 0; i < oat_dex_files_.size(); i++) { 273 const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i]; 274 CHECK(oat_dex_file != nullptr); 275 std::string error_msg; 276 std::unique_ptr<const DexFile> dex_file(oat_dex_file->OpenDexFile(&error_msg)); 277 if (dex_file.get() == nullptr) { 278 LOG(WARNING) << "Failed to open dex file '" << oat_dex_file->GetDexFileLocation() 279 << "': " << error_msg; 280 } else { 281 const DexFile::ClassDef* class_def = 282 dex_file->FindClassDef(m->GetDeclaringClassDescriptor()); 283 if (class_def != nullptr) { 284 uint16_t class_def_index = dex_file->GetIndexForClassDef(*class_def); 285 const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(class_def_index); 286 size_t method_index = m->GetMethodIndex(); 287 return oat_class.GetOatMethod(method_index).GetQuickCode(); 288 } 289 } 290 } 291 return nullptr; 292 } 293 294 private: 295 void AddAllOffsets() { 296 // We don't know the length of the code for each method, but we need to know where to stop 297 // when disassembling. What we do know is that a region of code will be followed by some other 298 // region, so if we keep a sorted sequence of the start of each region, we can infer the length 299 // of a piece of code by using upper_bound to find the start of the next region. 300 for (size_t i = 0; i < oat_dex_files_.size(); i++) { 301 const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i]; 302 CHECK(oat_dex_file != nullptr); 303 std::string error_msg; 304 std::unique_ptr<const DexFile> dex_file(oat_dex_file->OpenDexFile(&error_msg)); 305 if (dex_file.get() == nullptr) { 306 LOG(WARNING) << "Failed to open dex file '" << oat_dex_file->GetDexFileLocation() 307 << "': " << error_msg; 308 continue; 309 } 310 offsets_.insert(reinterpret_cast<uintptr_t>(&dex_file->GetHeader())); 311 for (size_t class_def_index = 0; 312 class_def_index < dex_file->NumClassDefs(); 313 class_def_index++) { 314 const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index); 315 const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(class_def_index); 316 const byte* class_data = dex_file->GetClassData(class_def); 317 if (class_data != nullptr) { 318 ClassDataItemIterator it(*dex_file, class_data); 319 SkipAllFields(it); 320 uint32_t class_method_index = 0; 321 while (it.HasNextDirectMethod()) { 322 AddOffsets(oat_class.GetOatMethod(class_method_index++)); 323 it.Next(); 324 } 325 while (it.HasNextVirtualMethod()) { 326 AddOffsets(oat_class.GetOatMethod(class_method_index++)); 327 it.Next(); 328 } 329 } 330 } 331 } 332 333 // If the last thing in the file is code for a method, there won't be an offset for the "next" 334 // thing. Instead of having a special case in the upper_bound code, let's just add an entry 335 // for the end of the file. 336 offsets_.insert(oat_file_.Size()); 337 } 338 339 static uint32_t AlignCodeOffset(uint32_t maybe_thumb_offset) { 340 return maybe_thumb_offset & ~0x1; // TODO: Make this Thumb2 specific. 341 } 342 343 void AddOffsets(const OatFile::OatMethod& oat_method) { 344 uint32_t code_offset = oat_method.GetCodeOffset(); 345 if (oat_file_.GetOatHeader().GetInstructionSet() == kThumb2) { 346 code_offset &= ~0x1; 347 } 348 offsets_.insert(code_offset); 349 offsets_.insert(oat_method.GetMappingTableOffset()); 350 offsets_.insert(oat_method.GetVmapTableOffset()); 351 offsets_.insert(oat_method.GetNativeGcMapOffset()); 352 } 353 354 bool DumpOatDexFile(std::ostream& os, const OatFile::OatDexFile& oat_dex_file) { 355 bool success = true; 356 os << "OatDexFile:\n"; 357 os << StringPrintf("location: %s\n", oat_dex_file.GetDexFileLocation().c_str()); 358 os << StringPrintf("checksum: 0x%08x\n", oat_dex_file.GetDexFileLocationChecksum()); 359 360 // Create the verifier early. 361 362 std::string error_msg; 363 std::unique_ptr<const DexFile> dex_file(oat_dex_file.OpenDexFile(&error_msg)); 364 if (dex_file.get() == nullptr) { 365 os << "NOT FOUND: " << error_msg << "\n\n"; 366 os << std::flush; 367 return false; 368 } 369 for (size_t class_def_index = 0; 370 class_def_index < dex_file->NumClassDefs(); 371 class_def_index++) { 372 const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index); 373 const char* descriptor = dex_file->GetClassDescriptor(class_def); 374 uint32_t oat_class_offset = oat_dex_file.GetOatClassOffset(class_def_index); 375 const OatFile::OatClass oat_class = oat_dex_file.GetOatClass(class_def_index); 376 os << StringPrintf("%zd: %s (offset=0x%08x) (type_idx=%d)", 377 class_def_index, descriptor, oat_class_offset, class_def.class_idx_) 378 << " (" << oat_class.GetStatus() << ")" 379 << " (" << oat_class.GetType() << ")\n"; 380 // TODO: include bitmap here if type is kOatClassSomeCompiled? 381 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 382 std::ostream indented_os(&indent_filter); 383 if (!DumpOatClass(indented_os, oat_class, *(dex_file.get()), class_def)) { 384 success = false; 385 } 386 } 387 388 os << std::flush; 389 return success; 390 } 391 392 static void SkipAllFields(ClassDataItemIterator& it) { 393 while (it.HasNextStaticField()) { 394 it.Next(); 395 } 396 while (it.HasNextInstanceField()) { 397 it.Next(); 398 } 399 } 400 401 bool DumpOatClass(std::ostream& os, const OatFile::OatClass& oat_class, const DexFile& dex_file, 402 const DexFile::ClassDef& class_def) { 403 bool success = true; 404 const byte* class_data = dex_file.GetClassData(class_def); 405 if (class_data == nullptr) { // empty class such as a marker interface? 406 os << std::flush; 407 return success; 408 } 409 ClassDataItemIterator it(dex_file, class_data); 410 SkipAllFields(it); 411 uint32_t class_method_index = 0; 412 while (it.HasNextDirectMethod()) { 413 if (!DumpOatMethod(os, class_def, class_method_index, oat_class, dex_file, 414 it.GetMemberIndex(), it.GetMethodCodeItem(), 415 it.GetRawMemberAccessFlags())) { 416 success = false; 417 } 418 class_method_index++; 419 it.Next(); 420 } 421 while (it.HasNextVirtualMethod()) { 422 if (!DumpOatMethod(os, class_def, class_method_index, oat_class, dex_file, 423 it.GetMemberIndex(), it.GetMethodCodeItem(), 424 it.GetRawMemberAccessFlags())) { 425 success = false; 426 } 427 class_method_index++; 428 it.Next(); 429 } 430 DCHECK(!it.HasNext()); 431 os << std::flush; 432 return success; 433 } 434 435 static constexpr uint32_t kPrologueBytes = 16; 436 437 // When this was picked, the largest arm method was 55,256 bytes and arm64 was 50,412 bytes. 438 static constexpr uint32_t kMaxCodeSize = 100 * 1000; 439 440 bool DumpOatMethod(std::ostream& os, const DexFile::ClassDef& class_def, 441 uint32_t class_method_index, 442 const OatFile::OatClass& oat_class, const DexFile& dex_file, 443 uint32_t dex_method_idx, const DexFile::CodeItem* code_item, 444 uint32_t method_access_flags) { 445 bool success = true; 446 os << StringPrintf("%d: %s (dex_method_idx=%d)\n", 447 class_method_index, PrettyMethod(dex_method_idx, dex_file, true).c_str(), 448 dex_method_idx); 449 Indenter indent1_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 450 std::unique_ptr<std::ostream> indent1_os(new std::ostream(&indent1_filter)); 451 Indenter indent2_filter(indent1_os->rdbuf(), kIndentChar, kIndentBy1Count); 452 std::unique_ptr<std::ostream> indent2_os(new std::ostream(&indent2_filter)); 453 { 454 *indent1_os << "DEX CODE:\n"; 455 DumpDexCode(*indent2_os, dex_file, code_item); 456 } 457 458 std::unique_ptr<verifier::MethodVerifier> verifier; 459 if (Runtime::Current() != nullptr) { 460 *indent1_os << "VERIFIER TYPE ANALYSIS:\n"; 461 verifier.reset(DumpVerifier(*indent2_os, dex_method_idx, &dex_file, class_def, code_item, 462 method_access_flags)); 463 } 464 465 uint32_t oat_method_offsets_offset = oat_class.GetOatMethodOffsetsOffset(class_method_index); 466 const OatMethodOffsets* oat_method_offsets = oat_class.GetOatMethodOffsets(class_method_index); 467 const OatFile::OatMethod oat_method = oat_class.GetOatMethod(class_method_index); 468 { 469 *indent1_os << "OatMethodOffsets "; 470 if (options_->absolute_addresses_) { 471 *indent1_os << StringPrintf("%p ", oat_method_offsets); 472 } 473 *indent1_os << StringPrintf("(offset=0x%08x)\n", oat_method_offsets_offset); 474 if (oat_method_offsets_offset > oat_file_.Size()) { 475 *indent1_os << StringPrintf( 476 "WARNING: oat method offsets offset 0x%08x is past end of file 0x%08zx.\n", 477 oat_method_offsets_offset, oat_file_.Size()); 478 // If we can't read OatMethodOffsets, the rest of the data is dangerous to read. 479 os << std::flush; 480 return false; 481 } 482 483 uint32_t code_offset = oat_method.GetCodeOffset(); 484 *indent2_os << StringPrintf("code_offset: 0x%08x ", code_offset); 485 uint32_t aligned_code_begin = AlignCodeOffset(oat_method.GetCodeOffset()); 486 if (aligned_code_begin > oat_file_.Size()) { 487 *indent2_os << StringPrintf("WARNING: " 488 "code offset 0x%08x is past end of file 0x%08zx.\n", 489 aligned_code_begin, oat_file_.Size()); 490 success = false; 491 } 492 *indent2_os << "\n"; 493 494 *indent2_os << "gc_map: "; 495 if (options_->absolute_addresses_) { 496 *indent2_os << StringPrintf("%p ", oat_method.GetNativeGcMap()); 497 } 498 uint32_t gc_map_offset = oat_method.GetNativeGcMapOffset(); 499 *indent2_os << StringPrintf("(offset=0x%08x)\n", gc_map_offset); 500 if (gc_map_offset > oat_file_.Size()) { 501 *indent2_os << StringPrintf("WARNING: " 502 "gc map table offset 0x%08x is past end of file 0x%08zx.\n", 503 gc_map_offset, oat_file_.Size()); 504 success = false; 505 } else if (options_->dump_raw_gc_map_) { 506 Indenter indent3_filter(indent2_os->rdbuf(), kIndentChar, kIndentBy1Count); 507 std::ostream indent3_os(&indent3_filter); 508 DumpGcMap(indent3_os, oat_method, code_item); 509 } 510 } 511 { 512 *indent1_os << "OatQuickMethodHeader "; 513 uint32_t method_header_offset = oat_method.GetOatQuickMethodHeaderOffset(); 514 const OatQuickMethodHeader* method_header = oat_method.GetOatQuickMethodHeader(); 515 516 if (options_->absolute_addresses_) { 517 *indent1_os << StringPrintf("%p ", method_header); 518 } 519 *indent1_os << StringPrintf("(offset=0x%08x)\n", method_header_offset); 520 if (method_header_offset > oat_file_.Size()) { 521 *indent1_os << StringPrintf( 522 "WARNING: oat quick method header offset 0x%08x is past end of file 0x%08zx.\n", 523 method_header_offset, oat_file_.Size()); 524 // If we can't read the OatQuickMethodHeader, the rest of the data is dangerous to read. 525 os << std::flush; 526 return false; 527 } 528 529 *indent2_os << "mapping_table: "; 530 if (options_->absolute_addresses_) { 531 *indent2_os << StringPrintf("%p ", oat_method.GetMappingTable()); 532 } 533 uint32_t mapping_table_offset = oat_method.GetMappingTableOffset(); 534 *indent2_os << StringPrintf("(offset=0x%08x)\n", oat_method.GetMappingTableOffset()); 535 if (mapping_table_offset > oat_file_.Size()) { 536 *indent2_os << StringPrintf("WARNING: " 537 "mapping table offset 0x%08x is past end of file 0x%08zx. " 538 "mapping table offset was loaded from offset 0x%08x.\n", 539 mapping_table_offset, oat_file_.Size(), 540 oat_method.GetMappingTableOffsetOffset()); 541 success = false; 542 } else if (options_->dump_raw_mapping_table_) { 543 Indenter indent3_filter(indent2_os->rdbuf(), kIndentChar, kIndentBy1Count); 544 std::ostream indent3_os(&indent3_filter); 545 DumpMappingTable(indent3_os, oat_method); 546 } 547 548 *indent2_os << "vmap_table: "; 549 if (options_->absolute_addresses_) { 550 *indent2_os << StringPrintf("%p ", oat_method.GetVmapTable()); 551 } 552 uint32_t vmap_table_offset = oat_method.GetVmapTableOffset(); 553 *indent2_os << StringPrintf("(offset=0x%08x)\n", vmap_table_offset); 554 if (vmap_table_offset > oat_file_.Size()) { 555 *indent2_os << StringPrintf("WARNING: " 556 "vmap table offset 0x%08x is past end of file 0x%08zx. " 557 "vmap table offset was loaded from offset 0x%08x.\n", 558 vmap_table_offset, oat_file_.Size(), 559 oat_method.GetVmapTableOffsetOffset()); 560 success = false; 561 } else if (options_->dump_vmap_) { 562 DumpVmap(*indent2_os, oat_method); 563 } 564 } 565 { 566 *indent1_os << "QuickMethodFrameInfo\n"; 567 568 *indent2_os << StringPrintf("frame_size_in_bytes: %zd\n", oat_method.GetFrameSizeInBytes()); 569 *indent2_os << StringPrintf("core_spill_mask: 0x%08x ", oat_method.GetCoreSpillMask()); 570 DumpSpillMask(*indent2_os, oat_method.GetCoreSpillMask(), false); 571 *indent2_os << "\n"; 572 *indent2_os << StringPrintf("fp_spill_mask: 0x%08x ", oat_method.GetFpSpillMask()); 573 DumpSpillMask(*indent2_os, oat_method.GetFpSpillMask(), true); 574 *indent2_os << "\n"; 575 } 576 { 577 *indent1_os << "CODE: "; 578 uint32_t code_size_offset = oat_method.GetQuickCodeSizeOffset(); 579 if (code_size_offset > oat_file_.Size()) { 580 *indent2_os << StringPrintf("WARNING: " 581 "code size offset 0x%08x is past end of file 0x%08zx.", 582 code_size_offset, oat_file_.Size()); 583 success = false; 584 } else { 585 const void* code = oat_method.GetQuickCode(); 586 uint32_t code_size = oat_method.GetQuickCodeSize(); 587 if (code == nullptr) { 588 code = oat_method.GetPortableCode(); 589 code_size = oat_method.GetPortableCodeSize(); 590 code_size_offset = 0; 591 } 592 uint32_t code_offset = oat_method.GetCodeOffset(); 593 uint32_t aligned_code_begin = AlignCodeOffset(code_offset); 594 uint64_t aligned_code_end = aligned_code_begin + code_size; 595 596 if (options_->absolute_addresses_) { 597 *indent1_os << StringPrintf("%p ", code); 598 } 599 *indent1_os << StringPrintf("(code_offset=0x%08x size_offset=0x%08x size=%u)%s\n", 600 code_offset, 601 code_size_offset, 602 code_size, 603 code != nullptr ? "..." : ""); 604 605 if (aligned_code_begin > oat_file_.Size()) { 606 *indent2_os << StringPrintf("WARNING: " 607 "start of code at 0x%08x is past end of file 0x%08zx.", 608 aligned_code_begin, oat_file_.Size()); 609 success = false; 610 } else if (aligned_code_end > oat_file_.Size()) { 611 *indent2_os << StringPrintf("WARNING: " 612 "end of code at 0x%08" PRIx64 " is past end of file 0x%08zx. " 613 "code size is 0x%08x loaded from offset 0x%08x.\n", 614 aligned_code_end, oat_file_.Size(), 615 code_size, code_size_offset); 616 success = false; 617 if (options_->disassemble_code_) { 618 if (code_size_offset + kPrologueBytes <= oat_file_.Size()) { 619 DumpCode(*indent2_os, verifier.get(), oat_method, code_item, true, kPrologueBytes); 620 } 621 } 622 } else if (code_size > kMaxCodeSize) { 623 *indent2_os << StringPrintf("WARNING: " 624 "code size %d is bigger than max expected threshold of %d. " 625 "code size is 0x%08x loaded from offset 0x%08x.\n", 626 code_size, kMaxCodeSize, 627 code_size, code_size_offset); 628 success = false; 629 if (options_->disassemble_code_) { 630 if (code_size_offset + kPrologueBytes <= oat_file_.Size()) { 631 DumpCode(*indent2_os, verifier.get(), oat_method, code_item, true, kPrologueBytes); 632 } 633 } 634 } else if (options_->disassemble_code_) { 635 DumpCode(*indent2_os, verifier.get(), oat_method, code_item, !success, 0); 636 } 637 } 638 } 639 os << std::flush; 640 return success; 641 } 642 643 void DumpSpillMask(std::ostream& os, uint32_t spill_mask, bool is_float) { 644 if (spill_mask == 0) { 645 return; 646 } 647 os << "("; 648 for (size_t i = 0; i < 32; i++) { 649 if ((spill_mask & (1 << i)) != 0) { 650 if (is_float) { 651 os << "fr" << i; 652 } else { 653 os << "r" << i; 654 } 655 spill_mask ^= 1 << i; // clear bit 656 if (spill_mask != 0) { 657 os << ", "; 658 } else { 659 break; 660 } 661 } 662 } 663 os << ")"; 664 } 665 666 void DumpVmap(std::ostream& os, const OatFile::OatMethod& oat_method) { 667 const uint8_t* raw_table = oat_method.GetVmapTable(); 668 if (raw_table != nullptr) { 669 const VmapTable vmap_table(raw_table); 670 bool first = true; 671 bool processing_fp = false; 672 uint32_t spill_mask = oat_method.GetCoreSpillMask(); 673 for (size_t i = 0; i < vmap_table.Size(); i++) { 674 uint16_t dex_reg = vmap_table[i]; 675 uint32_t cpu_reg = vmap_table.ComputeRegister(spill_mask, i, 676 processing_fp ? kFloatVReg : kIntVReg); 677 os << (first ? "v" : ", v") << dex_reg; 678 if (!processing_fp) { 679 os << "/r" << cpu_reg; 680 } else { 681 os << "/fr" << cpu_reg; 682 } 683 first = false; 684 if (!processing_fp && dex_reg == 0xFFFF) { 685 processing_fp = true; 686 spill_mask = oat_method.GetFpSpillMask(); 687 } 688 } 689 os << "\n"; 690 } 691 } 692 693 void DescribeVReg(std::ostream& os, const OatFile::OatMethod& oat_method, 694 const DexFile::CodeItem* code_item, size_t reg, VRegKind kind) { 695 const uint8_t* raw_table = oat_method.GetVmapTable(); 696 if (raw_table != nullptr) { 697 const VmapTable vmap_table(raw_table); 698 uint32_t vmap_offset; 699 if (vmap_table.IsInContext(reg, kind, &vmap_offset)) { 700 bool is_float = (kind == kFloatVReg) || (kind == kDoubleLoVReg) || (kind == kDoubleHiVReg); 701 uint32_t spill_mask = is_float ? oat_method.GetFpSpillMask() 702 : oat_method.GetCoreSpillMask(); 703 os << (is_float ? "fr" : "r") << vmap_table.ComputeRegister(spill_mask, vmap_offset, kind); 704 } else { 705 uint32_t offset = StackVisitor::GetVRegOffset(code_item, oat_method.GetCoreSpillMask(), 706 oat_method.GetFpSpillMask(), 707 oat_method.GetFrameSizeInBytes(), reg, 708 GetInstructionSet()); 709 os << "[sp + #" << offset << "]"; 710 } 711 } 712 } 713 714 void DumpGcMapRegisters(std::ostream& os, const OatFile::OatMethod& oat_method, 715 const DexFile::CodeItem* code_item, 716 size_t num_regs, const uint8_t* reg_bitmap) { 717 bool first = true; 718 for (size_t reg = 0; reg < num_regs; reg++) { 719 if (((reg_bitmap[reg / 8] >> (reg % 8)) & 0x01) != 0) { 720 if (first) { 721 os << " v" << reg << " ("; 722 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 723 os << ")"; 724 first = false; 725 } else { 726 os << ", v" << reg << " ("; 727 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 728 os << ")"; 729 } 730 } 731 } 732 if (first) { 733 os << "No registers in GC map\n"; 734 } else { 735 os << "\n"; 736 } 737 } 738 void DumpGcMap(std::ostream& os, const OatFile::OatMethod& oat_method, 739 const DexFile::CodeItem* code_item) { 740 const uint8_t* gc_map_raw = oat_method.GetNativeGcMap(); 741 if (gc_map_raw == nullptr) { 742 return; // No GC map. 743 } 744 const void* quick_code = oat_method.GetQuickCode(); 745 if (quick_code != nullptr) { 746 NativePcOffsetToReferenceMap map(gc_map_raw); 747 for (size_t entry = 0; entry < map.NumEntries(); entry++) { 748 const uint8_t* native_pc = reinterpret_cast<const uint8_t*>(quick_code) + 749 map.GetNativePcOffset(entry); 750 os << StringPrintf("%p", native_pc); 751 DumpGcMapRegisters(os, oat_method, code_item, map.RegWidth() * 8, map.GetBitMap(entry)); 752 } 753 } else { 754 const void* portable_code = oat_method.GetPortableCode(); 755 CHECK(portable_code != nullptr); 756 verifier::DexPcToReferenceMap map(gc_map_raw); 757 for (size_t entry = 0; entry < map.NumEntries(); entry++) { 758 uint32_t dex_pc = map.GetDexPc(entry); 759 os << StringPrintf("0x%08x", dex_pc); 760 DumpGcMapRegisters(os, oat_method, code_item, map.RegWidth() * 8, map.GetBitMap(entry)); 761 } 762 } 763 } 764 765 void DumpMappingTable(std::ostream& os, const OatFile::OatMethod& oat_method) { 766 const void* quick_code = oat_method.GetQuickCode(); 767 if (quick_code == nullptr) { 768 return; 769 } 770 MappingTable table(oat_method.GetMappingTable()); 771 if (table.TotalSize() != 0) { 772 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 773 std::ostream indent_os(&indent_filter); 774 if (table.PcToDexSize() != 0) { 775 typedef MappingTable::PcToDexIterator It; 776 os << "suspend point mappings {\n"; 777 for (It cur = table.PcToDexBegin(), end = table.PcToDexEnd(); cur != end; ++cur) { 778 indent_os << StringPrintf("0x%04x -> 0x%04x\n", cur.NativePcOffset(), cur.DexPc()); 779 } 780 os << "}\n"; 781 } 782 if (table.DexToPcSize() != 0) { 783 typedef MappingTable::DexToPcIterator It; 784 os << "catch entry mappings {\n"; 785 for (It cur = table.DexToPcBegin(), end = table.DexToPcEnd(); cur != end; ++cur) { 786 indent_os << StringPrintf("0x%04x -> 0x%04x\n", cur.NativePcOffset(), cur.DexPc()); 787 } 788 os << "}\n"; 789 } 790 } 791 } 792 793 uint32_t DumpMappingAtOffset(std::ostream& os, const OatFile::OatMethod& oat_method, 794 size_t offset, bool suspend_point_mapping) { 795 MappingTable table(oat_method.GetMappingTable()); 796 if (suspend_point_mapping && table.PcToDexSize() > 0) { 797 typedef MappingTable::PcToDexIterator It; 798 for (It cur = table.PcToDexBegin(), end = table.PcToDexEnd(); cur != end; ++cur) { 799 if (offset == cur.NativePcOffset()) { 800 os << StringPrintf("suspend point dex PC: 0x%04x\n", cur.DexPc()); 801 return cur.DexPc(); 802 } 803 } 804 } else if (!suspend_point_mapping && table.DexToPcSize() > 0) { 805 typedef MappingTable::DexToPcIterator It; 806 for (It cur = table.DexToPcBegin(), end = table.DexToPcEnd(); cur != end; ++cur) { 807 if (offset == cur.NativePcOffset()) { 808 os << StringPrintf("catch entry dex PC: 0x%04x\n", cur.DexPc()); 809 return cur.DexPc(); 810 } 811 } 812 } 813 return DexFile::kDexNoIndex; 814 } 815 816 void DumpGcMapAtNativePcOffset(std::ostream& os, const OatFile::OatMethod& oat_method, 817 const DexFile::CodeItem* code_item, size_t native_pc_offset) { 818 const uint8_t* gc_map_raw = oat_method.GetNativeGcMap(); 819 if (gc_map_raw != nullptr) { 820 NativePcOffsetToReferenceMap map(gc_map_raw); 821 if (map.HasEntry(native_pc_offset)) { 822 size_t num_regs = map.RegWidth() * 8; 823 const uint8_t* reg_bitmap = map.FindBitMap(native_pc_offset); 824 bool first = true; 825 for (size_t reg = 0; reg < num_regs; reg++) { 826 if (((reg_bitmap[reg / 8] >> (reg % 8)) & 0x01) != 0) { 827 if (first) { 828 os << "GC map objects: v" << reg << " ("; 829 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 830 os << ")"; 831 first = false; 832 } else { 833 os << ", v" << reg << " ("; 834 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 835 os << ")"; 836 } 837 } 838 } 839 if (!first) { 840 os << "\n"; 841 } 842 } 843 } 844 } 845 846 void DumpVRegsAtDexPc(std::ostream& os, verifier::MethodVerifier* verifier, 847 const OatFile::OatMethod& oat_method, 848 const DexFile::CodeItem* code_item, uint32_t dex_pc) { 849 DCHECK(verifier != nullptr); 850 std::vector<int32_t> kinds = verifier->DescribeVRegs(dex_pc); 851 bool first = true; 852 for (size_t reg = 0; reg < code_item->registers_size_; reg++) { 853 VRegKind kind = static_cast<VRegKind>(kinds.at(reg * 2)); 854 if (kind != kUndefined) { 855 if (first) { 856 os << "VRegs: v"; 857 first = false; 858 } else { 859 os << ", v"; 860 } 861 os << reg << " ("; 862 switch (kind) { 863 case kImpreciseConstant: 864 os << "Imprecise Constant: " << kinds.at((reg * 2) + 1) << ", "; 865 DescribeVReg(os, oat_method, code_item, reg, kind); 866 break; 867 case kConstant: 868 os << "Constant: " << kinds.at((reg * 2) + 1); 869 break; 870 default: 871 DescribeVReg(os, oat_method, code_item, reg, kind); 872 break; 873 } 874 os << ")"; 875 } 876 } 877 if (!first) { 878 os << "\n"; 879 } 880 } 881 882 883 void DumpDexCode(std::ostream& os, const DexFile& dex_file, const DexFile::CodeItem* code_item) { 884 if (code_item != nullptr) { 885 size_t i = 0; 886 while (i < code_item->insns_size_in_code_units_) { 887 const Instruction* instruction = Instruction::At(&code_item->insns_[i]); 888 os << StringPrintf("0x%04zx: %s\n", i, instruction->DumpString(&dex_file).c_str()); 889 i += instruction->SizeInCodeUnits(); 890 } 891 } 892 } 893 894 verifier::MethodVerifier* DumpVerifier(std::ostream& os, uint32_t dex_method_idx, 895 const DexFile* dex_file, 896 const DexFile::ClassDef& class_def, 897 const DexFile::CodeItem* code_item, 898 uint32_t method_access_flags) { 899 if ((method_access_flags & kAccNative) == 0) { 900 ScopedObjectAccess soa(Thread::Current()); 901 StackHandleScope<2> hs(soa.Self()); 902 Handle<mirror::DexCache> dex_cache( 903 hs.NewHandle(Runtime::Current()->GetClassLinker()->FindDexCache(*dex_file))); 904 auto class_loader(hs.NewHandle<mirror::ClassLoader>(nullptr)); 905 return verifier::MethodVerifier::VerifyMethodAndDump(os, dex_method_idx, dex_file, dex_cache, 906 class_loader, &class_def, code_item, 907 nullptr, method_access_flags); 908 } 909 910 return nullptr; 911 } 912 913 void DumpCode(std::ostream& os, verifier::MethodVerifier* verifier, 914 const OatFile::OatMethod& oat_method, const DexFile::CodeItem* code_item, 915 bool bad_input, size_t code_size) { 916 const void* portable_code = oat_method.GetPortableCode(); 917 const void* quick_code = oat_method.GetQuickCode(); 918 919 if (code_size == 0) { 920 code_size = oat_method.GetQuickCodeSize(); 921 } 922 if ((code_size == 0) || ((portable_code == nullptr) && (quick_code == nullptr))) { 923 os << "NO CODE!\n"; 924 return; 925 } else if (quick_code != nullptr) { 926 const uint8_t* quick_native_pc = reinterpret_cast<const uint8_t*>(quick_code); 927 size_t offset = 0; 928 while (offset < code_size) { 929 if (!bad_input) { 930 DumpMappingAtOffset(os, oat_method, offset, false); 931 } 932 offset += disassembler_->Dump(os, quick_native_pc + offset); 933 if (!bad_input) { 934 uint32_t dex_pc = DumpMappingAtOffset(os, oat_method, offset, true); 935 if (dex_pc != DexFile::kDexNoIndex) { 936 DumpGcMapAtNativePcOffset(os, oat_method, code_item, offset); 937 if (verifier != nullptr) { 938 DumpVRegsAtDexPc(os, verifier, oat_method, code_item, dex_pc); 939 } 940 } 941 } 942 } 943 } else { 944 CHECK(portable_code != nullptr); 945 CHECK_EQ(code_size, 0U); // TODO: disassembly of portable is currently not supported. 946 } 947 } 948 949 const OatFile& oat_file_; 950 const std::vector<const OatFile::OatDexFile*> oat_dex_files_; 951 const OatDumperOptions* options_; 952 std::set<uintptr_t> offsets_; 953 Disassembler* disassembler_; 954 }; 955 956 class ImageDumper { 957 public: 958 explicit ImageDumper(std::ostream* os, gc::space::ImageSpace& image_space, 959 const ImageHeader& image_header, OatDumperOptions* oat_dumper_options) 960 : os_(os), 961 image_space_(image_space), 962 image_header_(image_header), 963 oat_dumper_options_(oat_dumper_options) {} 964 965 bool Dump() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 966 std::ostream& os = *os_; 967 os << "MAGIC: " << image_header_.GetMagic() << "\n\n"; 968 969 os << "IMAGE BEGIN: " << reinterpret_cast<void*>(image_header_.GetImageBegin()) << "\n\n"; 970 971 os << "IMAGE BITMAP OFFSET: " << reinterpret_cast<void*>(image_header_.GetImageBitmapOffset()) 972 << " SIZE: " << reinterpret_cast<void*>(image_header_.GetImageBitmapSize()) << "\n\n"; 973 974 os << "OAT CHECKSUM: " << StringPrintf("0x%08x\n\n", image_header_.GetOatChecksum()); 975 976 os << "OAT FILE BEGIN:" << reinterpret_cast<void*>(image_header_.GetOatFileBegin()) << "\n\n"; 977 978 os << "OAT DATA BEGIN:" << reinterpret_cast<void*>(image_header_.GetOatDataBegin()) << "\n\n"; 979 980 os << "OAT DATA END:" << reinterpret_cast<void*>(image_header_.GetOatDataEnd()) << "\n\n"; 981 982 os << "OAT FILE END:" << reinterpret_cast<void*>(image_header_.GetOatFileEnd()) << "\n\n"; 983 984 os << "PATCH DELTA:" << image_header_.GetPatchDelta() << "\n\n"; 985 986 { 987 os << "ROOTS: " << reinterpret_cast<void*>(image_header_.GetImageRoots()) << "\n"; 988 Indenter indent1_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 989 std::ostream indent1_os(&indent1_filter); 990 CHECK_EQ(arraysize(image_roots_descriptions_), size_t(ImageHeader::kImageRootsMax)); 991 for (int i = 0; i < ImageHeader::kImageRootsMax; i++) { 992 ImageHeader::ImageRoot image_root = static_cast<ImageHeader::ImageRoot>(i); 993 const char* image_root_description = image_roots_descriptions_[i]; 994 mirror::Object* image_root_object = image_header_.GetImageRoot(image_root); 995 indent1_os << StringPrintf("%s: %p\n", image_root_description, image_root_object); 996 if (image_root_object->IsObjectArray()) { 997 Indenter indent2_filter(indent1_os.rdbuf(), kIndentChar, kIndentBy1Count); 998 std::ostream indent2_os(&indent2_filter); 999 mirror::ObjectArray<mirror::Object>* image_root_object_array 1000 = image_root_object->AsObjectArray<mirror::Object>(); 1001 for (int i = 0; i < image_root_object_array->GetLength(); i++) { 1002 mirror::Object* value = image_root_object_array->Get(i); 1003 size_t run = 0; 1004 for (int32_t j = i + 1; j < image_root_object_array->GetLength(); j++) { 1005 if (value == image_root_object_array->Get(j)) { 1006 run++; 1007 } else { 1008 break; 1009 } 1010 } 1011 if (run == 0) { 1012 indent2_os << StringPrintf("%d: ", i); 1013 } else { 1014 indent2_os << StringPrintf("%d to %zd: ", i, i + run); 1015 i = i + run; 1016 } 1017 if (value != nullptr) { 1018 PrettyObjectValue(indent2_os, value->GetClass(), value); 1019 } else { 1020 indent2_os << i << ": null\n"; 1021 } 1022 } 1023 } 1024 } 1025 } 1026 os << "\n"; 1027 1028 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 1029 std::string image_filename = image_space_.GetImageFilename(); 1030 std::string oat_location = ImageHeader::GetOatLocationFromImageLocation(image_filename); 1031 os << "OAT LOCATION: " << oat_location; 1032 os << "\n"; 1033 std::string error_msg; 1034 const OatFile* oat_file = class_linker->FindOpenedOatFileFromOatLocation(oat_location); 1035 if (oat_file == nullptr) { 1036 oat_file = OatFile::Open(oat_location, oat_location, nullptr, false, &error_msg); 1037 if (oat_file == nullptr) { 1038 os << "NOT FOUND: " << error_msg << "\n"; 1039 return false; 1040 } 1041 } 1042 os << "\n"; 1043 1044 stats_.oat_file_bytes = oat_file->Size(); 1045 1046 oat_dumper_.reset(new OatDumper(*oat_file, oat_dumper_options_.release())); 1047 1048 for (const OatFile::OatDexFile* oat_dex_file : oat_file->GetOatDexFiles()) { 1049 CHECK(oat_dex_file != nullptr); 1050 stats_.oat_dex_file_sizes.push_back(std::make_pair(oat_dex_file->GetDexFileLocation(), 1051 oat_dex_file->FileSize())); 1052 } 1053 1054 os << "OBJECTS:\n" << std::flush; 1055 1056 // Loop through all the image spaces and dump their objects. 1057 gc::Heap* heap = Runtime::Current()->GetHeap(); 1058 const std::vector<gc::space::ContinuousSpace*>& spaces = heap->GetContinuousSpaces(); 1059 Thread* self = Thread::Current(); 1060 { 1061 { 1062 WriterMutexLock mu(self, *Locks::heap_bitmap_lock_); 1063 heap->FlushAllocStack(); 1064 } 1065 // Since FlushAllocStack() above resets the (active) allocation 1066 // stack. Need to revoke the thread-local allocation stacks that 1067 // point into it. 1068 { 1069 self->TransitionFromRunnableToSuspended(kNative); 1070 ThreadList* thread_list = Runtime::Current()->GetThreadList(); 1071 thread_list->SuspendAll(); 1072 heap->RevokeAllThreadLocalAllocationStacks(self); 1073 thread_list->ResumeAll(); 1074 self->TransitionFromSuspendedToRunnable(); 1075 } 1076 } 1077 { 1078 std::ostream* saved_os = os_; 1079 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 1080 std::ostream indent_os(&indent_filter); 1081 os_ = &indent_os; 1082 ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_); 1083 for (const auto& space : spaces) { 1084 if (space->IsImageSpace()) { 1085 gc::space::ImageSpace* image_space = space->AsImageSpace(); 1086 image_space->GetLiveBitmap()->Walk(ImageDumper::Callback, this); 1087 indent_os << "\n"; 1088 } 1089 } 1090 // Dump the large objects separately. 1091 heap->GetLargeObjectsSpace()->GetLiveBitmap()->Walk(ImageDumper::Callback, this); 1092 indent_os << "\n"; 1093 os_ = saved_os; 1094 } 1095 os << "STATS:\n" << std::flush; 1096 std::unique_ptr<File> file(OS::OpenFileForReading(image_filename.c_str())); 1097 if (file.get() == nullptr) { 1098 LOG(WARNING) << "Failed to find image in " << image_filename; 1099 } 1100 if (file.get() != nullptr) { 1101 stats_.file_bytes = file->GetLength(); 1102 } 1103 size_t header_bytes = sizeof(ImageHeader); 1104 stats_.header_bytes = header_bytes; 1105 size_t alignment_bytes = RoundUp(header_bytes, kObjectAlignment) - header_bytes; 1106 stats_.alignment_bytes += alignment_bytes; 1107 stats_.alignment_bytes += image_header_.GetImageBitmapOffset() - image_header_.GetImageSize(); 1108 stats_.bitmap_bytes += image_header_.GetImageBitmapSize(); 1109 stats_.Dump(os); 1110 os << "\n"; 1111 1112 os << std::flush; 1113 1114 return oat_dumper_->Dump(os); 1115 } 1116 1117 private: 1118 static void PrettyObjectValue(std::ostream& os, mirror::Class* type, mirror::Object* value) 1119 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1120 CHECK(type != nullptr); 1121 if (value == nullptr) { 1122 os << StringPrintf("null %s\n", PrettyDescriptor(type).c_str()); 1123 } else if (type->IsStringClass()) { 1124 mirror::String* string = value->AsString(); 1125 os << StringPrintf("%p String: %s\n", string, 1126 PrintableString(string->ToModifiedUtf8().c_str()).c_str()); 1127 } else if (type->IsClassClass()) { 1128 mirror::Class* klass = value->AsClass(); 1129 os << StringPrintf("%p Class: %s\n", klass, PrettyDescriptor(klass).c_str()); 1130 } else if (type->IsArtFieldClass()) { 1131 mirror::ArtField* field = value->AsArtField(); 1132 os << StringPrintf("%p Field: %s\n", field, PrettyField(field).c_str()); 1133 } else if (type->IsArtMethodClass()) { 1134 mirror::ArtMethod* method = value->AsArtMethod(); 1135 os << StringPrintf("%p Method: %s\n", method, PrettyMethod(method).c_str()); 1136 } else { 1137 os << StringPrintf("%p %s\n", value, PrettyDescriptor(type).c_str()); 1138 } 1139 } 1140 1141 static void PrintField(std::ostream& os, mirror::ArtField* field, mirror::Object* obj) 1142 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1143 const char* descriptor = field->GetTypeDescriptor(); 1144 os << StringPrintf("%s: ", field->GetName()); 1145 if (descriptor[0] != 'L' && descriptor[0] != '[') { 1146 StackHandleScope<1> hs(Thread::Current()); 1147 FieldHelper fh(hs.NewHandle(field)); 1148 mirror::Class* type = fh.GetType(); 1149 if (type->IsPrimitiveLong()) { 1150 os << StringPrintf("%" PRId64 " (0x%" PRIx64 ")\n", field->Get64(obj), field->Get64(obj)); 1151 } else if (type->IsPrimitiveDouble()) { 1152 os << StringPrintf("%f (%a)\n", field->GetDouble(obj), field->GetDouble(obj)); 1153 } else if (type->IsPrimitiveFloat()) { 1154 os << StringPrintf("%f (%a)\n", field->GetFloat(obj), field->GetFloat(obj)); 1155 } else { 1156 DCHECK(type->IsPrimitive()); 1157 os << StringPrintf("%d (0x%x)\n", field->Get32(obj), field->Get32(obj)); 1158 } 1159 } else { 1160 // Get the value, don't compute the type unless it is non-null as we don't want 1161 // to cause class loading. 1162 mirror::Object* value = field->GetObj(obj); 1163 if (value == nullptr) { 1164 os << StringPrintf("null %s\n", PrettyDescriptor(descriptor).c_str()); 1165 } else { 1166 // Grab the field type without causing resolution. 1167 StackHandleScope<1> hs(Thread::Current()); 1168 FieldHelper fh(hs.NewHandle(field)); 1169 mirror::Class* field_type = fh.GetType(false); 1170 if (field_type != nullptr) { 1171 PrettyObjectValue(os, field_type, value); 1172 } else { 1173 os << StringPrintf("%p %s\n", value, PrettyDescriptor(descriptor).c_str()); 1174 } 1175 } 1176 } 1177 } 1178 1179 static void DumpFields(std::ostream& os, mirror::Object* obj, mirror::Class* klass) 1180 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1181 mirror::Class* super = klass->GetSuperClass(); 1182 if (super != nullptr) { 1183 DumpFields(os, obj, super); 1184 } 1185 mirror::ObjectArray<mirror::ArtField>* fields = klass->GetIFields(); 1186 if (fields != nullptr) { 1187 for (int32_t i = 0; i < fields->GetLength(); i++) { 1188 mirror::ArtField* field = fields->Get(i); 1189 PrintField(os, field, obj); 1190 } 1191 } 1192 } 1193 1194 bool InDumpSpace(const mirror::Object* object) { 1195 return image_space_.Contains(object); 1196 } 1197 1198 const void* GetQuickOatCodeBegin(mirror::ArtMethod* m) 1199 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1200 const void* quick_code = m->GetEntryPointFromQuickCompiledCode(); 1201 if (quick_code == Runtime::Current()->GetClassLinker()->GetQuickResolutionTrampoline()) { 1202 quick_code = oat_dumper_->GetQuickOatCode(m); 1203 } 1204 if (oat_dumper_->GetInstructionSet() == kThumb2) { 1205 quick_code = reinterpret_cast<void*>(reinterpret_cast<uintptr_t>(quick_code) & ~0x1); 1206 } 1207 return quick_code; 1208 } 1209 1210 uint32_t GetQuickOatCodeSize(mirror::ArtMethod* m) 1211 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1212 const uint32_t* oat_code_begin = reinterpret_cast<const uint32_t*>(GetQuickOatCodeBegin(m)); 1213 if (oat_code_begin == nullptr) { 1214 return 0; 1215 } 1216 return oat_code_begin[-1]; 1217 } 1218 1219 const void* GetQuickOatCodeEnd(mirror::ArtMethod* m) 1220 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1221 const uint8_t* oat_code_begin = reinterpret_cast<const uint8_t*>(GetQuickOatCodeBegin(m)); 1222 if (oat_code_begin == nullptr) { 1223 return nullptr; 1224 } 1225 return oat_code_begin + GetQuickOatCodeSize(m); 1226 } 1227 1228 static void Callback(mirror::Object* obj, void* arg) 1229 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1230 DCHECK(obj != nullptr); 1231 DCHECK(arg != nullptr); 1232 ImageDumper* state = reinterpret_cast<ImageDumper*>(arg); 1233 if (!state->InDumpSpace(obj)) { 1234 return; 1235 } 1236 1237 size_t object_bytes = obj->SizeOf(); 1238 size_t alignment_bytes = RoundUp(object_bytes, kObjectAlignment) - object_bytes; 1239 state->stats_.object_bytes += object_bytes; 1240 state->stats_.alignment_bytes += alignment_bytes; 1241 1242 std::ostream& os = *state->os_; 1243 mirror::Class* obj_class = obj->GetClass(); 1244 if (obj_class->IsArrayClass()) { 1245 os << StringPrintf("%p: %s length:%d\n", obj, PrettyDescriptor(obj_class).c_str(), 1246 obj->AsArray()->GetLength()); 1247 } else if (obj->IsClass()) { 1248 mirror::Class* klass = obj->AsClass(); 1249 os << StringPrintf("%p: java.lang.Class \"%s\" (", obj, PrettyDescriptor(klass).c_str()) 1250 << klass->GetStatus() << ")\n"; 1251 } else if (obj->IsArtField()) { 1252 os << StringPrintf("%p: java.lang.reflect.ArtField %s\n", obj, 1253 PrettyField(obj->AsArtField()).c_str()); 1254 } else if (obj->IsArtMethod()) { 1255 os << StringPrintf("%p: java.lang.reflect.ArtMethod %s\n", obj, 1256 PrettyMethod(obj->AsArtMethod()).c_str()); 1257 } else if (obj_class->IsStringClass()) { 1258 os << StringPrintf("%p: java.lang.String %s\n", obj, 1259 PrintableString(obj->AsString()->ToModifiedUtf8().c_str()).c_str()); 1260 } else { 1261 os << StringPrintf("%p: %s\n", obj, PrettyDescriptor(obj_class).c_str()); 1262 } 1263 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 1264 std::ostream indent_os(&indent_filter); 1265 DumpFields(indent_os, obj, obj_class); 1266 if (obj->IsObjectArray()) { 1267 mirror::ObjectArray<mirror::Object>* obj_array = obj->AsObjectArray<mirror::Object>(); 1268 int32_t length = obj_array->GetLength(); 1269 for (int32_t i = 0; i < length; i++) { 1270 mirror::Object* value = obj_array->Get(i); 1271 size_t run = 0; 1272 for (int32_t j = i + 1; j < length; j++) { 1273 if (value == obj_array->Get(j)) { 1274 run++; 1275 } else { 1276 break; 1277 } 1278 } 1279 if (run == 0) { 1280 indent_os << StringPrintf("%d: ", i); 1281 } else { 1282 indent_os << StringPrintf("%d to %zd: ", i, i + run); 1283 i = i + run; 1284 } 1285 mirror::Class* value_class = 1286 (value == nullptr) ? obj_class->GetComponentType() : value->GetClass(); 1287 PrettyObjectValue(indent_os, value_class, value); 1288 } 1289 } else if (obj->IsClass()) { 1290 mirror::ObjectArray<mirror::ArtField>* sfields = obj->AsClass()->GetSFields(); 1291 if (sfields != nullptr) { 1292 indent_os << "STATICS:\n"; 1293 Indenter indent2_filter(indent_os.rdbuf(), kIndentChar, kIndentBy1Count); 1294 std::ostream indent2_os(&indent2_filter); 1295 for (int32_t i = 0; i < sfields->GetLength(); i++) { 1296 mirror::ArtField* field = sfields->Get(i); 1297 PrintField(indent2_os, field, field->GetDeclaringClass()); 1298 } 1299 } 1300 } else if (obj->IsArtMethod()) { 1301 mirror::ArtMethod* method = obj->AsArtMethod(); 1302 if (method->IsNative()) { 1303 // TODO: portable dumping. 1304 DCHECK(method->GetNativeGcMap() == nullptr) << PrettyMethod(method); 1305 DCHECK(method->GetMappingTable() == nullptr) << PrettyMethod(method); 1306 bool first_occurrence; 1307 const void* quick_oat_code = state->GetQuickOatCodeBegin(method); 1308 uint32_t quick_oat_code_size = state->GetQuickOatCodeSize(method); 1309 state->ComputeOatSize(quick_oat_code, &first_occurrence); 1310 if (first_occurrence) { 1311 state->stats_.native_to_managed_code_bytes += quick_oat_code_size; 1312 } 1313 if (quick_oat_code != method->GetEntryPointFromQuickCompiledCode()) { 1314 indent_os << StringPrintf("OAT CODE: %p\n", quick_oat_code); 1315 } 1316 } else if (method->IsAbstract() || method->IsCalleeSaveMethod() || 1317 method->IsResolutionMethod() || method->IsImtConflictMethod() || 1318 method->IsClassInitializer()) { 1319 DCHECK(method->GetNativeGcMap() == nullptr) << PrettyMethod(method); 1320 DCHECK(method->GetMappingTable() == nullptr) << PrettyMethod(method); 1321 } else { 1322 const DexFile::CodeItem* code_item = method->GetCodeItem(); 1323 size_t dex_instruction_bytes = code_item->insns_size_in_code_units_ * 2; 1324 state->stats_.dex_instruction_bytes += dex_instruction_bytes; 1325 1326 bool first_occurrence; 1327 size_t gc_map_bytes = state->ComputeOatSize(method->GetNativeGcMap(), &first_occurrence); 1328 if (first_occurrence) { 1329 state->stats_.gc_map_bytes += gc_map_bytes; 1330 } 1331 1332 size_t pc_mapping_table_bytes = 1333 state->ComputeOatSize(method->GetMappingTable(), &first_occurrence); 1334 if (first_occurrence) { 1335 state->stats_.pc_mapping_table_bytes += pc_mapping_table_bytes; 1336 } 1337 1338 size_t vmap_table_bytes = 1339 state->ComputeOatSize(method->GetVmapTable(), &first_occurrence); 1340 if (first_occurrence) { 1341 state->stats_.vmap_table_bytes += vmap_table_bytes; 1342 } 1343 1344 // TODO: portable dumping. 1345 const void* quick_oat_code_begin = state->GetQuickOatCodeBegin(method); 1346 const void* quick_oat_code_end = state->GetQuickOatCodeEnd(method); 1347 uint32_t quick_oat_code_size = state->GetQuickOatCodeSize(method); 1348 state->ComputeOatSize(quick_oat_code_begin, &first_occurrence); 1349 if (first_occurrence) { 1350 state->stats_.managed_code_bytes += quick_oat_code_size; 1351 if (method->IsConstructor()) { 1352 if (method->IsStatic()) { 1353 state->stats_.class_initializer_code_bytes += quick_oat_code_size; 1354 } else if (dex_instruction_bytes > kLargeConstructorDexBytes) { 1355 state->stats_.large_initializer_code_bytes += quick_oat_code_size; 1356 } 1357 } else if (dex_instruction_bytes > kLargeMethodDexBytes) { 1358 state->stats_.large_method_code_bytes += quick_oat_code_size; 1359 } 1360 } 1361 state->stats_.managed_code_bytes_ignoring_deduplication += quick_oat_code_size; 1362 1363 indent_os << StringPrintf("OAT CODE: %p-%p\n", quick_oat_code_begin, quick_oat_code_end); 1364 indent_os << StringPrintf("SIZE: Dex Instructions=%zd GC=%zd Mapping=%zd\n", 1365 dex_instruction_bytes, gc_map_bytes, pc_mapping_table_bytes); 1366 1367 size_t total_size = dex_instruction_bytes + gc_map_bytes + pc_mapping_table_bytes + 1368 vmap_table_bytes + quick_oat_code_size + object_bytes; 1369 1370 double expansion = 1371 static_cast<double>(quick_oat_code_size) / static_cast<double>(dex_instruction_bytes); 1372 state->stats_.ComputeOutliers(total_size, expansion, method); 1373 } 1374 } 1375 std::string temp; 1376 state->stats_.Update(obj_class->GetDescriptor(&temp), object_bytes); 1377 } 1378 1379 std::set<const void*> already_seen_; 1380 // Compute the size of the given data within the oat file and whether this is the first time 1381 // this data has been requested 1382 size_t ComputeOatSize(const void* oat_data, bool* first_occurrence) { 1383 if (already_seen_.count(oat_data) == 0) { 1384 *first_occurrence = true; 1385 already_seen_.insert(oat_data); 1386 } else { 1387 *first_occurrence = false; 1388 } 1389 return oat_dumper_->ComputeSize(oat_data); 1390 } 1391 1392 public: 1393 struct Stats { 1394 size_t oat_file_bytes; 1395 size_t file_bytes; 1396 1397 size_t header_bytes; 1398 size_t object_bytes; 1399 size_t bitmap_bytes; 1400 size_t alignment_bytes; 1401 1402 size_t managed_code_bytes; 1403 size_t managed_code_bytes_ignoring_deduplication; 1404 size_t managed_to_native_code_bytes; 1405 size_t native_to_managed_code_bytes; 1406 size_t class_initializer_code_bytes; 1407 size_t large_initializer_code_bytes; 1408 size_t large_method_code_bytes; 1409 1410 size_t gc_map_bytes; 1411 size_t pc_mapping_table_bytes; 1412 size_t vmap_table_bytes; 1413 1414 size_t dex_instruction_bytes; 1415 1416 std::vector<mirror::ArtMethod*> method_outlier; 1417 std::vector<size_t> method_outlier_size; 1418 std::vector<double> method_outlier_expansion; 1419 std::vector<std::pair<std::string, size_t>> oat_dex_file_sizes; 1420 1421 explicit Stats() 1422 : oat_file_bytes(0), 1423 file_bytes(0), 1424 header_bytes(0), 1425 object_bytes(0), 1426 bitmap_bytes(0), 1427 alignment_bytes(0), 1428 managed_code_bytes(0), 1429 managed_code_bytes_ignoring_deduplication(0), 1430 managed_to_native_code_bytes(0), 1431 native_to_managed_code_bytes(0), 1432 class_initializer_code_bytes(0), 1433 large_initializer_code_bytes(0), 1434 large_method_code_bytes(0), 1435 gc_map_bytes(0), 1436 pc_mapping_table_bytes(0), 1437 vmap_table_bytes(0), 1438 dex_instruction_bytes(0) {} 1439 1440 struct SizeAndCount { 1441 SizeAndCount(size_t bytes, size_t count) : bytes(bytes), count(count) {} 1442 size_t bytes; 1443 size_t count; 1444 }; 1445 typedef SafeMap<std::string, SizeAndCount> SizeAndCountTable; 1446 SizeAndCountTable sizes_and_counts; 1447 1448 void Update(const char* descriptor, size_t object_bytes) { 1449 SizeAndCountTable::iterator it = sizes_and_counts.find(descriptor); 1450 if (it != sizes_and_counts.end()) { 1451 it->second.bytes += object_bytes; 1452 it->second.count += 1; 1453 } else { 1454 sizes_and_counts.Put(descriptor, SizeAndCount(object_bytes, 1)); 1455 } 1456 } 1457 1458 double PercentOfOatBytes(size_t size) { 1459 return (static_cast<double>(size) / static_cast<double>(oat_file_bytes)) * 100; 1460 } 1461 1462 double PercentOfFileBytes(size_t size) { 1463 return (static_cast<double>(size) / static_cast<double>(file_bytes)) * 100; 1464 } 1465 1466 double PercentOfObjectBytes(size_t size) { 1467 return (static_cast<double>(size) / static_cast<double>(object_bytes)) * 100; 1468 } 1469 1470 void ComputeOutliers(size_t total_size, double expansion, mirror::ArtMethod* method) { 1471 method_outlier_size.push_back(total_size); 1472 method_outlier_expansion.push_back(expansion); 1473 method_outlier.push_back(method); 1474 } 1475 1476 void DumpOutliers(std::ostream& os) 1477 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1478 size_t sum_of_sizes = 0; 1479 size_t sum_of_sizes_squared = 0; 1480 size_t sum_of_expansion = 0; 1481 size_t sum_of_expansion_squared = 0; 1482 size_t n = method_outlier_size.size(); 1483 for (size_t i = 0; i < n; i++) { 1484 size_t cur_size = method_outlier_size[i]; 1485 sum_of_sizes += cur_size; 1486 sum_of_sizes_squared += cur_size * cur_size; 1487 double cur_expansion = method_outlier_expansion[i]; 1488 sum_of_expansion += cur_expansion; 1489 sum_of_expansion_squared += cur_expansion * cur_expansion; 1490 } 1491 size_t size_mean = sum_of_sizes / n; 1492 size_t size_variance = (sum_of_sizes_squared - sum_of_sizes * size_mean) / (n - 1); 1493 double expansion_mean = sum_of_expansion / n; 1494 double expansion_variance = 1495 (sum_of_expansion_squared - sum_of_expansion * expansion_mean) / (n - 1); 1496 1497 // Dump methods whose size is a certain number of standard deviations from the mean 1498 size_t dumped_values = 0; 1499 size_t skipped_values = 0; 1500 for (size_t i = 100; i > 0; i--) { // i is the current number of standard deviations 1501 size_t cur_size_variance = i * i * size_variance; 1502 bool first = true; 1503 for (size_t j = 0; j < n; j++) { 1504 size_t cur_size = method_outlier_size[j]; 1505 if (cur_size > size_mean) { 1506 size_t cur_var = cur_size - size_mean; 1507 cur_var = cur_var * cur_var; 1508 if (cur_var > cur_size_variance) { 1509 if (dumped_values > 20) { 1510 if (i == 1) { 1511 skipped_values++; 1512 } else { 1513 i = 2; // jump to counting for 1 standard deviation 1514 break; 1515 } 1516 } else { 1517 if (first) { 1518 os << "\nBig methods (size > " << i << " standard deviations the norm):\n"; 1519 first = false; 1520 } 1521 os << PrettyMethod(method_outlier[j]) << " requires storage of " 1522 << PrettySize(cur_size) << "\n"; 1523 method_outlier_size[j] = 0; // don't consider this method again 1524 dumped_values++; 1525 } 1526 } 1527 } 1528 } 1529 } 1530 if (skipped_values > 0) { 1531 os << "... skipped " << skipped_values 1532 << " methods with size > 1 standard deviation from the norm\n"; 1533 } 1534 os << std::flush; 1535 1536 // Dump methods whose expansion is a certain number of standard deviations from the mean 1537 dumped_values = 0; 1538 skipped_values = 0; 1539 for (size_t i = 10; i > 0; i--) { // i is the current number of standard deviations 1540 double cur_expansion_variance = i * i * expansion_variance; 1541 bool first = true; 1542 for (size_t j = 0; j < n; j++) { 1543 double cur_expansion = method_outlier_expansion[j]; 1544 if (cur_expansion > expansion_mean) { 1545 size_t cur_var = cur_expansion - expansion_mean; 1546 cur_var = cur_var * cur_var; 1547 if (cur_var > cur_expansion_variance) { 1548 if (dumped_values > 20) { 1549 if (i == 1) { 1550 skipped_values++; 1551 } else { 1552 i = 2; // jump to counting for 1 standard deviation 1553 break; 1554 } 1555 } else { 1556 if (first) { 1557 os << "\nLarge expansion methods (size > " << i 1558 << " standard deviations the norm):\n"; 1559 first = false; 1560 } 1561 os << PrettyMethod(method_outlier[j]) << " expanded code by " 1562 << cur_expansion << "\n"; 1563 method_outlier_expansion[j] = 0.0; // don't consider this method again 1564 dumped_values++; 1565 } 1566 } 1567 } 1568 } 1569 } 1570 if (skipped_values > 0) { 1571 os << "... skipped " << skipped_values 1572 << " methods with expansion > 1 standard deviation from the norm\n"; 1573 } 1574 os << "\n" << std::flush; 1575 } 1576 1577 void Dump(std::ostream& os) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1578 { 1579 os << "art_file_bytes = " << PrettySize(file_bytes) << "\n\n" 1580 << "art_file_bytes = header_bytes + object_bytes + alignment_bytes\n"; 1581 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 1582 std::ostream indent_os(&indent_filter); 1583 indent_os << StringPrintf("header_bytes = %8zd (%2.0f%% of art file bytes)\n" 1584 "object_bytes = %8zd (%2.0f%% of art file bytes)\n" 1585 "bitmap_bytes = %8zd (%2.0f%% of art file bytes)\n" 1586 "alignment_bytes = %8zd (%2.0f%% of art file bytes)\n\n", 1587 header_bytes, PercentOfFileBytes(header_bytes), 1588 object_bytes, PercentOfFileBytes(object_bytes), 1589 bitmap_bytes, PercentOfFileBytes(bitmap_bytes), 1590 alignment_bytes, PercentOfFileBytes(alignment_bytes)) 1591 << std::flush; 1592 CHECK_EQ(file_bytes, bitmap_bytes + header_bytes + object_bytes + alignment_bytes); 1593 } 1594 1595 os << "object_bytes breakdown:\n"; 1596 size_t object_bytes_total = 0; 1597 for (const auto& sizes_and_count : sizes_and_counts) { 1598 const std::string& descriptor(sizes_and_count.first); 1599 double average = static_cast<double>(sizes_and_count.second.bytes) / 1600 static_cast<double>(sizes_and_count.second.count); 1601 double percent = PercentOfObjectBytes(sizes_and_count.second.bytes); 1602 os << StringPrintf("%32s %8zd bytes %6zd instances " 1603 "(%4.0f bytes/instance) %2.0f%% of object_bytes\n", 1604 descriptor.c_str(), sizes_and_count.second.bytes, 1605 sizes_and_count.second.count, average, percent); 1606 object_bytes_total += sizes_and_count.second.bytes; 1607 } 1608 os << "\n" << std::flush; 1609 CHECK_EQ(object_bytes, object_bytes_total); 1610 1611 os << StringPrintf("oat_file_bytes = %8zd\n" 1612 "managed_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1613 "managed_to_native_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1614 "native_to_managed_code_bytes = %8zd (%2.0f%% of oat file bytes)\n\n" 1615 "class_initializer_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1616 "large_initializer_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1617 "large_method_code_bytes = %8zd (%2.0f%% of oat file bytes)\n\n", 1618 oat_file_bytes, 1619 managed_code_bytes, 1620 PercentOfOatBytes(managed_code_bytes), 1621 managed_to_native_code_bytes, 1622 PercentOfOatBytes(managed_to_native_code_bytes), 1623 native_to_managed_code_bytes, 1624 PercentOfOatBytes(native_to_managed_code_bytes), 1625 class_initializer_code_bytes, 1626 PercentOfOatBytes(class_initializer_code_bytes), 1627 large_initializer_code_bytes, 1628 PercentOfOatBytes(large_initializer_code_bytes), 1629 large_method_code_bytes, 1630 PercentOfOatBytes(large_method_code_bytes)) 1631 << "DexFile sizes:\n"; 1632 for (const std::pair<std::string, size_t>& oat_dex_file_size : oat_dex_file_sizes) { 1633 os << StringPrintf("%s = %zd (%2.0f%% of oat file bytes)\n", 1634 oat_dex_file_size.first.c_str(), oat_dex_file_size.second, 1635 PercentOfOatBytes(oat_dex_file_size.second)); 1636 } 1637 1638 os << "\n" << StringPrintf("gc_map_bytes = %7zd (%2.0f%% of oat file bytes)\n" 1639 "pc_mapping_table_bytes = %7zd (%2.0f%% of oat file bytes)\n" 1640 "vmap_table_bytes = %7zd (%2.0f%% of oat file bytes)\n\n", 1641 gc_map_bytes, PercentOfOatBytes(gc_map_bytes), 1642 pc_mapping_table_bytes, PercentOfOatBytes(pc_mapping_table_bytes), 1643 vmap_table_bytes, PercentOfOatBytes(vmap_table_bytes)) 1644 << std::flush; 1645 1646 os << StringPrintf("dex_instruction_bytes = %zd\n", dex_instruction_bytes) 1647 << StringPrintf("managed_code_bytes expansion = %.2f (ignoring deduplication %.2f)\n\n", 1648 static_cast<double>(managed_code_bytes) / 1649 static_cast<double>(dex_instruction_bytes), 1650 static_cast<double>(managed_code_bytes_ignoring_deduplication) / 1651 static_cast<double>(dex_instruction_bytes)) 1652 << std::flush; 1653 1654 DumpOutliers(os); 1655 } 1656 } stats_; 1657 1658 private: 1659 enum { 1660 // Number of bytes for a constructor to be considered large. Based on the 1000 basic block 1661 // threshold, we assume 2 bytes per instruction and 2 instructions per block. 1662 kLargeConstructorDexBytes = 4000, 1663 // Number of bytes for a method to be considered large. Based on the 4000 basic block 1664 // threshold, we assume 2 bytes per instruction and 2 instructions per block. 1665 kLargeMethodDexBytes = 16000 1666 }; 1667 std::ostream* os_; 1668 gc::space::ImageSpace& image_space_; 1669 const ImageHeader& image_header_; 1670 std::unique_ptr<OatDumper> oat_dumper_; 1671 std::unique_ptr<OatDumperOptions> oat_dumper_options_; 1672 1673 DISALLOW_COPY_AND_ASSIGN(ImageDumper); 1674 }; 1675 1676 static int oatdump(int argc, char** argv) { 1677 InitLogging(argv); 1678 1679 // Skip over argv[0]. 1680 argv++; 1681 argc--; 1682 1683 if (argc == 0) { 1684 fprintf(stderr, "No arguments specified\n"); 1685 usage(); 1686 } 1687 1688 const char* oat_filename = nullptr; 1689 const char* image_location = nullptr; 1690 const char* boot_image_location = nullptr; 1691 InstructionSet instruction_set = kRuntimeISA; 1692 std::string elf_filename_prefix; 1693 std::ostream* os = &std::cout; 1694 std::unique_ptr<std::ofstream> out; 1695 bool dump_raw_mapping_table = false; 1696 bool dump_raw_gc_map = false; 1697 bool dump_vmap = true; 1698 bool disassemble_code = true; 1699 1700 for (int i = 0; i < argc; i++) { 1701 const StringPiece option(argv[i]); 1702 if (option.starts_with("--oat-file=")) { 1703 oat_filename = option.substr(strlen("--oat-file=")).data(); 1704 } else if (option.starts_with("--image=")) { 1705 image_location = option.substr(strlen("--image=")).data(); 1706 } else if (option.starts_with("--boot-image=")) { 1707 boot_image_location = option.substr(strlen("--boot-image=")).data(); 1708 } else if (option.starts_with("--instruction-set=")) { 1709 StringPiece instruction_set_str = option.substr(strlen("--instruction-set=")).data(); 1710 if (instruction_set_str == "arm") { 1711 instruction_set = kThumb2; 1712 } else if (instruction_set_str == "arm64") { 1713 instruction_set = kArm64; 1714 } else if (instruction_set_str == "mips") { 1715 instruction_set = kMips; 1716 } else if (instruction_set_str == "x86") { 1717 instruction_set = kX86; 1718 } else if (instruction_set_str == "x86_64") { 1719 instruction_set = kX86_64; 1720 } 1721 } else if (option =="--dump:raw_mapping_table") { 1722 dump_raw_mapping_table = true; 1723 } else if (option == "--dump:raw_gc_map") { 1724 dump_raw_gc_map = true; 1725 } else if (option == "--no-dump:vmap") { 1726 dump_vmap = false; 1727 } else if (option == "--no-disassemble") { 1728 disassemble_code = false; 1729 } else if (option.starts_with("--output=")) { 1730 const char* filename = option.substr(strlen("--output=")).data(); 1731 out.reset(new std::ofstream(filename)); 1732 if (!out->good()) { 1733 fprintf(stderr, "Failed to open output filename %s\n", filename); 1734 usage(); 1735 } 1736 os = out.get(); 1737 } else { 1738 fprintf(stderr, "Unknown argument %s\n", option.data()); 1739 usage(); 1740 } 1741 } 1742 1743 if (image_location == nullptr && oat_filename == nullptr) { 1744 fprintf(stderr, "Either --image or --oat must be specified\n"); 1745 return EXIT_FAILURE; 1746 } 1747 1748 if (image_location != nullptr && oat_filename != nullptr) { 1749 fprintf(stderr, "Either --image or --oat must be specified but not both\n"); 1750 return EXIT_FAILURE; 1751 } 1752 1753 // If we are only doing the oat file, disable absolute_addresses. Keep them for image dumping. 1754 bool absolute_addresses = (oat_filename == nullptr); 1755 std::unique_ptr<OatDumperOptions> oat_dumper_options(new OatDumperOptions(dump_raw_mapping_table, 1756 dump_raw_gc_map, 1757 dump_vmap, 1758 disassemble_code, 1759 absolute_addresses)); 1760 MemMap::Init(); 1761 if (oat_filename != nullptr) { 1762 std::string error_msg; 1763 OatFile* oat_file = 1764 OatFile::Open(oat_filename, oat_filename, nullptr, false, &error_msg); 1765 if (oat_file == nullptr) { 1766 fprintf(stderr, "Failed to open oat file from '%s': %s\n", oat_filename, error_msg.c_str()); 1767 return EXIT_FAILURE; 1768 } 1769 OatDumper oat_dumper(*oat_file, oat_dumper_options.release()); 1770 bool success = oat_dumper.Dump(*os); 1771 return (success) ? EXIT_SUCCESS : EXIT_FAILURE; 1772 } 1773 1774 RuntimeOptions options; 1775 std::string image_option; 1776 std::string oat_option; 1777 std::string boot_image_option; 1778 std::string boot_oat_option; 1779 1780 // We are more like a compiler than a run-time. We don't want to execute code. 1781 NoopCompilerCallbacks callbacks; 1782 options.push_back(std::make_pair("compilercallbacks", &callbacks)); 1783 1784 if (boot_image_location != nullptr) { 1785 boot_image_option += "-Ximage:"; 1786 boot_image_option += boot_image_location; 1787 options.push_back(std::make_pair(boot_image_option.c_str(), nullptr)); 1788 } 1789 if (image_location != nullptr) { 1790 image_option += "-Ximage:"; 1791 image_option += image_location; 1792 options.push_back(std::make_pair(image_option.c_str(), nullptr)); 1793 } 1794 options.push_back( 1795 std::make_pair("imageinstructionset", 1796 reinterpret_cast<const void*>(GetInstructionSetString(instruction_set)))); 1797 1798 if (!Runtime::Create(options, false)) { 1799 fprintf(stderr, "Failed to create runtime\n"); 1800 return EXIT_FAILURE; 1801 } 1802 std::unique_ptr<Runtime> runtime(Runtime::Current()); 1803 // Runtime::Create acquired the mutator_lock_ that is normally given away when we Runtime::Start, 1804 // give it away now and then switch to a more manageable ScopedObjectAccess. 1805 Thread::Current()->TransitionFromRunnableToSuspended(kNative); 1806 ScopedObjectAccess soa(Thread::Current()); 1807 gc::Heap* heap = Runtime::Current()->GetHeap(); 1808 gc::space::ImageSpace* image_space = heap->GetImageSpace(); 1809 CHECK(image_space != nullptr); 1810 const ImageHeader& image_header = image_space->GetImageHeader(); 1811 if (!image_header.IsValid()) { 1812 fprintf(stderr, "Invalid image header %s\n", image_location); 1813 return EXIT_FAILURE; 1814 } 1815 ImageDumper image_dumper(os, *image_space, image_header, oat_dumper_options.release()); 1816 bool success = image_dumper.Dump(); 1817 return (success) ? EXIT_SUCCESS : EXIT_FAILURE; 1818 } 1819 1820 } // namespace art 1821 1822 int main(int argc, char** argv) { 1823 return art::oatdump(argc, argv); 1824 } 1825
