oatdump.cc revision 90ca5c0301651101de0e363842e5d08ae65233f7
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 58namespace art { 59 60static 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 108const char* image_roots_descriptions_[] = { 109 "kResolutionMethod", 110 "kImtConflictMethod", 111 "kImtUnimplementedMethod", 112 "kDefaultImt", 113 "kCalleeSaveMethod", 114 "kRefsOnlySaveMethod", 115 "kRefsAndArgsSaveMethod", 116 "kDexCaches", 117 "kClassRoots", 118}; 119 120class OatDumperOptions { 121 public: 122 OatDumperOptions(bool dump_raw_mapping_table, 123 bool dump_raw_gc_map, 124 bool dump_vmap, 125 bool disassemble_code, 126 bool absolute_addresses) 127 : dump_raw_mapping_table_(dump_raw_mapping_table), 128 dump_raw_gc_map_(dump_raw_gc_map), 129 dump_vmap_(dump_vmap), 130 disassemble_code_(disassemble_code), 131 absolute_addresses_(absolute_addresses) {} 132 133 const bool dump_raw_mapping_table_; 134 const bool dump_raw_gc_map_; 135 const bool dump_vmap_; 136 const bool disassemble_code_; 137 const bool absolute_addresses_; 138}; 139 140class OatDumper { 141 public: 142 explicit OatDumper(const OatFile& oat_file, OatDumperOptions* options) 143 : oat_file_(oat_file), 144 oat_dex_files_(oat_file.GetOatDexFiles()), 145 options_(options), 146 disassembler_(Disassembler::Create(oat_file_.GetOatHeader().GetInstructionSet(), 147 new DisassemblerOptions(options_->absolute_addresses_, 148 oat_file.Begin()))) { 149 AddAllOffsets(); 150 } 151 152 ~OatDumper() { 153 delete options_; 154 delete disassembler_; 155 } 156 157 bool Dump(std::ostream& os) { 158 bool success = true; 159 const OatHeader& oat_header = oat_file_.GetOatHeader(); 160 161 os << "MAGIC:\n"; 162 os << oat_header.GetMagic() << "\n\n"; 163 164 os << "CHECKSUM:\n"; 165 os << StringPrintf("0x%08x\n\n", oat_header.GetChecksum()); 166 167 os << "INSTRUCTION SET:\n"; 168 os << oat_header.GetInstructionSet() << "\n\n"; 169 170 os << "INSTRUCTION SET FEATURES:\n"; 171 os << oat_header.GetInstructionSetFeatures().GetFeatureString() << "\n\n"; 172 173 os << "DEX FILE COUNT:\n"; 174 os << oat_header.GetDexFileCount() << "\n\n"; 175 176#define DUMP_OAT_HEADER_OFFSET(label, offset) \ 177 os << label " OFFSET:\n"; \ 178 os << StringPrintf("0x%08x", oat_header.offset()); \ 179 if (oat_header.offset() != 0 && options_->absolute_addresses_) { \ 180 os << StringPrintf(" (%p)", oat_file_.Begin() + oat_header.offset()); \ 181 } \ 182 os << StringPrintf("\n\n"); 183 184 DUMP_OAT_HEADER_OFFSET("EXECUTABLE", GetExecutableOffset); 185 DUMP_OAT_HEADER_OFFSET("INTERPRETER TO INTERPRETER BRIDGE", 186 GetInterpreterToInterpreterBridgeOffset); 187 DUMP_OAT_HEADER_OFFSET("INTERPRETER TO COMPILED CODE BRIDGE", 188 GetInterpreterToCompiledCodeBridgeOffset); 189 DUMP_OAT_HEADER_OFFSET("JNI DLSYM LOOKUP", 190 GetJniDlsymLookupOffset); 191 DUMP_OAT_HEADER_OFFSET("PORTABLE IMT CONFLICT TRAMPOLINE", 192 GetPortableImtConflictTrampolineOffset); 193 DUMP_OAT_HEADER_OFFSET("PORTABLE RESOLUTION TRAMPOLINE", 194 GetPortableResolutionTrampolineOffset); 195 DUMP_OAT_HEADER_OFFSET("PORTABLE TO INTERPRETER BRIDGE", 196 GetPortableToInterpreterBridgeOffset); 197 DUMP_OAT_HEADER_OFFSET("QUICK GENERIC JNI TRAMPOLINE", 198 GetQuickGenericJniTrampolineOffset); 199 DUMP_OAT_HEADER_OFFSET("QUICK IMT CONFLICT TRAMPOLINE", 200 GetQuickImtConflictTrampolineOffset); 201 DUMP_OAT_HEADER_OFFSET("QUICK RESOLUTION TRAMPOLINE", 202 GetQuickResolutionTrampolineOffset); 203 DUMP_OAT_HEADER_OFFSET("QUICK TO INTERPRETER BRIDGE", 204 GetQuickToInterpreterBridgeOffset); 205#undef DUMP_OAT_HEADER_OFFSET 206 207 os << "IMAGE PATCH DELTA:\n"; 208 os << StringPrintf("%d (0x%08x)\n\n", 209 oat_header.GetImagePatchDelta(), 210 oat_header.GetImagePatchDelta()); 211 212 os << "IMAGE FILE LOCATION OAT CHECKSUM:\n"; 213 os << StringPrintf("0x%08x\n\n", oat_header.GetImageFileLocationOatChecksum()); 214 215 os << "IMAGE FILE LOCATION OAT BEGIN:\n"; 216 os << StringPrintf("0x%08x\n\n", oat_header.GetImageFileLocationOatDataBegin()); 217 218 // Print the key-value store. 219 { 220 os << "KEY VALUE STORE:\n"; 221 size_t index = 0; 222 const char* key; 223 const char* value; 224 while (oat_header.GetStoreKeyValuePairByIndex(index, &key, &value)) { 225 os << key << " = " << value << "\n"; 226 index++; 227 } 228 os << "\n"; 229 } 230 231 if (options_->absolute_addresses_) { 232 os << "BEGIN:\n"; 233 os << reinterpret_cast<const void*>(oat_file_.Begin()) << "\n\n"; 234 235 os << "END:\n"; 236 os << reinterpret_cast<const void*>(oat_file_.End()) << "\n\n"; 237 } 238 239 os << "SIZE:\n"; 240 os << oat_file_.Size() << "\n\n"; 241 242 os << std::flush; 243 244 for (size_t i = 0; i < oat_dex_files_.size(); i++) { 245 const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i]; 246 CHECK(oat_dex_file != nullptr); 247 if (!DumpOatDexFile(os, *oat_dex_file)) { 248 success = false; 249 } 250 } 251 os << std::flush; 252 return success; 253 } 254 255 size_t ComputeSize(const void* oat_data) { 256 if (reinterpret_cast<const byte*>(oat_data) < oat_file_.Begin() || 257 reinterpret_cast<const byte*>(oat_data) > oat_file_.End()) { 258 return 0; // Address not in oat file 259 } 260 uintptr_t begin_offset = reinterpret_cast<uintptr_t>(oat_data) - 261 reinterpret_cast<uintptr_t>(oat_file_.Begin()); 262 auto it = offsets_.upper_bound(begin_offset); 263 CHECK(it != offsets_.end()); 264 uintptr_t end_offset = *it; 265 return end_offset - begin_offset; 266 } 267 268 InstructionSet GetInstructionSet() { 269 return oat_file_.GetOatHeader().GetInstructionSet(); 270 } 271 272 const void* GetQuickOatCode(mirror::ArtMethod* m) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 273 for (size_t i = 0; i < oat_dex_files_.size(); i++) { 274 const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i]; 275 CHECK(oat_dex_file != nullptr); 276 std::string error_msg; 277 std::unique_ptr<const DexFile> dex_file(oat_dex_file->OpenDexFile(&error_msg)); 278 if (dex_file.get() == nullptr) { 279 LOG(WARNING) << "Failed to open dex file '" << oat_dex_file->GetDexFileLocation() 280 << "': " << error_msg; 281 } else { 282 const DexFile::ClassDef* class_def = 283 dex_file->FindClassDef(m->GetDeclaringClassDescriptor()); 284 if (class_def != nullptr) { 285 uint16_t class_def_index = dex_file->GetIndexForClassDef(*class_def); 286 const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(class_def_index); 287 size_t method_index = m->GetMethodIndex(); 288 return oat_class.GetOatMethod(method_index).GetQuickCode(); 289 } 290 } 291 } 292 return nullptr; 293 } 294 295 private: 296 void AddAllOffsets() { 297 // We don't know the length of the code for each method, but we need to know where to stop 298 // when disassembling. What we do know is that a region of code will be followed by some other 299 // region, so if we keep a sorted sequence of the start of each region, we can infer the length 300 // of a piece of code by using upper_bound to find the start of the next region. 301 for (size_t i = 0; i < oat_dex_files_.size(); i++) { 302 const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i]; 303 CHECK(oat_dex_file != nullptr); 304 std::string error_msg; 305 std::unique_ptr<const DexFile> dex_file(oat_dex_file->OpenDexFile(&error_msg)); 306 if (dex_file.get() == nullptr) { 307 LOG(WARNING) << "Failed to open dex file '" << oat_dex_file->GetDexFileLocation() 308 << "': " << error_msg; 309 continue; 310 } 311 offsets_.insert(reinterpret_cast<uintptr_t>(&dex_file->GetHeader())); 312 for (size_t class_def_index = 0; 313 class_def_index < dex_file->NumClassDefs(); 314 class_def_index++) { 315 const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index); 316 const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(class_def_index); 317 const byte* class_data = dex_file->GetClassData(class_def); 318 if (class_data != nullptr) { 319 ClassDataItemIterator it(*dex_file, class_data); 320 SkipAllFields(it); 321 uint32_t class_method_index = 0; 322 while (it.HasNextDirectMethod()) { 323 AddOffsets(oat_class.GetOatMethod(class_method_index++)); 324 it.Next(); 325 } 326 while (it.HasNextVirtualMethod()) { 327 AddOffsets(oat_class.GetOatMethod(class_method_index++)); 328 it.Next(); 329 } 330 } 331 } 332 } 333 334 // If the last thing in the file is code for a method, there won't be an offset for the "next" 335 // thing. Instead of having a special case in the upper_bound code, let's just add an entry 336 // for the end of the file. 337 offsets_.insert(oat_file_.Size()); 338 } 339 340 static uint32_t AlignCodeOffset(uint32_t maybe_thumb_offset) { 341 return maybe_thumb_offset & ~0x1; // TODO: Make this Thumb2 specific. 342 } 343 344 void AddOffsets(const OatFile::OatMethod& oat_method) { 345 uint32_t code_offset = oat_method.GetCodeOffset(); 346 if (oat_file_.GetOatHeader().GetInstructionSet() == kThumb2) { 347 code_offset &= ~0x1; 348 } 349 offsets_.insert(code_offset); 350 offsets_.insert(oat_method.GetMappingTableOffset()); 351 offsets_.insert(oat_method.GetVmapTableOffset()); 352 offsets_.insert(oat_method.GetNativeGcMapOffset()); 353 } 354 355 bool DumpOatDexFile(std::ostream& os, const OatFile::OatDexFile& oat_dex_file) { 356 bool success = true; 357 os << "OatDexFile:\n"; 358 os << StringPrintf("location: %s\n", oat_dex_file.GetDexFileLocation().c_str()); 359 os << StringPrintf("checksum: 0x%08x\n", oat_dex_file.GetDexFileLocationChecksum()); 360 361 // Create the verifier early. 362 363 std::string error_msg; 364 std::unique_ptr<const DexFile> dex_file(oat_dex_file.OpenDexFile(&error_msg)); 365 if (dex_file.get() == nullptr) { 366 os << "NOT FOUND: " << error_msg << "\n\n"; 367 os << std::flush; 368 return false; 369 } 370 for (size_t class_def_index = 0; 371 class_def_index < dex_file->NumClassDefs(); 372 class_def_index++) { 373 const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index); 374 const char* descriptor = dex_file->GetClassDescriptor(class_def); 375 uint32_t oat_class_offset = oat_dex_file.GetOatClassOffset(class_def_index); 376 const OatFile::OatClass oat_class = oat_dex_file.GetOatClass(class_def_index); 377 os << StringPrintf("%zd: %s (offset=0x%08x) (type_idx=%d)", 378 class_def_index, descriptor, oat_class_offset, class_def.class_idx_) 379 << " (" << oat_class.GetStatus() << ")" 380 << " (" << oat_class.GetType() << ")\n"; 381 // TODO: include bitmap here if type is kOatClassSomeCompiled? 382 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 383 std::ostream indented_os(&indent_filter); 384 if (!DumpOatClass(indented_os, oat_class, *(dex_file.get()), class_def)) { 385 success = false; 386 } 387 } 388 389 os << std::flush; 390 return success; 391 } 392 393 static void SkipAllFields(ClassDataItemIterator& it) { 394 while (it.HasNextStaticField()) { 395 it.Next(); 396 } 397 while (it.HasNextInstanceField()) { 398 it.Next(); 399 } 400 } 401 402 bool DumpOatClass(std::ostream& os, const OatFile::OatClass& oat_class, const DexFile& dex_file, 403 const DexFile::ClassDef& class_def) { 404 bool success = true; 405 const byte* class_data = dex_file.GetClassData(class_def); 406 if (class_data == nullptr) { // empty class such as a marker interface? 407 os << std::flush; 408 return success; 409 } 410 ClassDataItemIterator it(dex_file, class_data); 411 SkipAllFields(it); 412 uint32_t class_method_index = 0; 413 while (it.HasNextDirectMethod()) { 414 if (!DumpOatMethod(os, class_def, class_method_index, oat_class, dex_file, 415 it.GetMemberIndex(), it.GetMethodCodeItem(), 416 it.GetRawMemberAccessFlags())) { 417 success = false; 418 } 419 class_method_index++; 420 it.Next(); 421 } 422 while (it.HasNextVirtualMethod()) { 423 if (!DumpOatMethod(os, class_def, class_method_index, oat_class, dex_file, 424 it.GetMemberIndex(), it.GetMethodCodeItem(), 425 it.GetRawMemberAccessFlags())) { 426 success = false; 427 } 428 class_method_index++; 429 it.Next(); 430 } 431 DCHECK(!it.HasNext()); 432 os << std::flush; 433 return success; 434 } 435 436 static constexpr uint32_t kPrologueBytes = 16; 437 438 // When this was picked, the largest arm method was 55,256 bytes and arm64 was 50,412 bytes. 439 static constexpr uint32_t kMaxCodeSize = 100 * 1000; 440 441 bool DumpOatMethod(std::ostream& os, const DexFile::ClassDef& class_def, 442 uint32_t class_method_index, 443 const OatFile::OatClass& oat_class, const DexFile& dex_file, 444 uint32_t dex_method_idx, const DexFile::CodeItem* code_item, 445 uint32_t method_access_flags) { 446 bool success = true; 447 os << StringPrintf("%d: %s (dex_method_idx=%d)\n", 448 class_method_index, PrettyMethod(dex_method_idx, dex_file, true).c_str(), 449 dex_method_idx); 450 Indenter indent1_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 451 std::unique_ptr<std::ostream> indent1_os(new std::ostream(&indent1_filter)); 452 Indenter indent2_filter(indent1_os->rdbuf(), kIndentChar, kIndentBy1Count); 453 std::unique_ptr<std::ostream> indent2_os(new std::ostream(&indent2_filter)); 454 { 455 *indent1_os << "DEX CODE:\n"; 456 DumpDexCode(*indent2_os, dex_file, code_item); 457 } 458 459 std::unique_ptr<verifier::MethodVerifier> verifier; 460 if (Runtime::Current() != nullptr) { 461 *indent1_os << "VERIFIER TYPE ANALYSIS:\n"; 462 verifier.reset(DumpVerifier(*indent2_os, dex_method_idx, &dex_file, class_def, code_item, 463 method_access_flags)); 464 } 465 466 uint32_t oat_method_offsets_offset = oat_class.GetOatMethodOffsetsOffset(class_method_index); 467 const OatMethodOffsets* oat_method_offsets = oat_class.GetOatMethodOffsets(class_method_index); 468 const OatFile::OatMethod oat_method = oat_class.GetOatMethod(class_method_index); 469 { 470 *indent1_os << "OatMethodOffsets "; 471 if (options_->absolute_addresses_) { 472 *indent1_os << StringPrintf("%p ", oat_method_offsets); 473 } 474 *indent1_os << StringPrintf("(offset=0x%08x)\n", oat_method_offsets_offset); 475 if (oat_method_offsets_offset > oat_file_.Size()) { 476 *indent1_os << StringPrintf( 477 "WARNING: oat method offsets offset 0x%08x is past end of file 0x%08zx.\n", 478 oat_method_offsets_offset, oat_file_.Size()); 479 // If we can't read OatMethodOffsets, the rest of the data is dangerous to read. 480 os << std::flush; 481 return false; 482 } 483 484 uint32_t code_offset = oat_method.GetCodeOffset(); 485 *indent2_os << StringPrintf("code_offset: 0x%08x ", code_offset); 486 uint32_t aligned_code_begin = AlignCodeOffset(oat_method.GetCodeOffset()); 487 if (aligned_code_begin > oat_file_.Size()) { 488 *indent2_os << StringPrintf("WARNING: " 489 "code offset 0x%08x is past end of file 0x%08zx.\n", 490 aligned_code_begin, oat_file_.Size()); 491 success = false; 492 } 493 *indent2_os << "\n"; 494 495 *indent2_os << "gc_map: "; 496 if (options_->absolute_addresses_) { 497 *indent2_os << StringPrintf("%p ", oat_method.GetNativeGcMap()); 498 } 499 uint32_t gc_map_offset = oat_method.GetNativeGcMapOffset(); 500 *indent2_os << StringPrintf("(offset=0x%08x)\n", gc_map_offset); 501 if (gc_map_offset > oat_file_.Size()) { 502 *indent2_os << StringPrintf("WARNING: " 503 "gc map table offset 0x%08x is past end of file 0x%08zx.\n", 504 gc_map_offset, oat_file_.Size()); 505 success = false; 506 } else if (options_->dump_raw_gc_map_) { 507 Indenter indent3_filter(indent2_os->rdbuf(), kIndentChar, kIndentBy1Count); 508 std::ostream indent3_os(&indent3_filter); 509 DumpGcMap(indent3_os, oat_method, code_item); 510 } 511 } 512 { 513 *indent1_os << "OatQuickMethodHeader "; 514 uint32_t method_header_offset = oat_method.GetOatQuickMethodHeaderOffset(); 515 const OatQuickMethodHeader* method_header = oat_method.GetOatQuickMethodHeader(); 516 517 if (options_->absolute_addresses_) { 518 *indent1_os << StringPrintf("%p ", method_header); 519 } 520 *indent1_os << StringPrintf("(offset=0x%08x)\n", method_header_offset); 521 if (method_header_offset > oat_file_.Size()) { 522 *indent1_os << StringPrintf( 523 "WARNING: oat quick method header offset 0x%08x is past end of file 0x%08zx.\n", 524 method_header_offset, oat_file_.Size()); 525 // If we can't read the OatQuickMethodHeader, the rest of the data is dangerous to read. 526 os << std::flush; 527 return false; 528 } 529 530 *indent2_os << "mapping_table: "; 531 if (options_->absolute_addresses_) { 532 *indent2_os << StringPrintf("%p ", oat_method.GetMappingTable()); 533 } 534 uint32_t mapping_table_offset = oat_method.GetMappingTableOffset(); 535 *indent2_os << StringPrintf("(offset=0x%08x)\n", oat_method.GetMappingTableOffset()); 536 if (mapping_table_offset > oat_file_.Size()) { 537 *indent2_os << StringPrintf("WARNING: " 538 "mapping table offset 0x%08x is past end of file 0x%08zx. " 539 "mapping table offset was loaded from offset 0x%08x.\n", 540 mapping_table_offset, oat_file_.Size(), 541 oat_method.GetMappingTableOffsetOffset()); 542 success = false; 543 } else if (options_->dump_raw_mapping_table_) { 544 Indenter indent3_filter(indent2_os->rdbuf(), kIndentChar, kIndentBy1Count); 545 std::ostream indent3_os(&indent3_filter); 546 DumpMappingTable(indent3_os, oat_method); 547 } 548 549 *indent2_os << "vmap_table: "; 550 if (options_->absolute_addresses_) { 551 *indent2_os << StringPrintf("%p ", oat_method.GetVmapTable()); 552 } 553 uint32_t vmap_table_offset = oat_method.GetVmapTableOffset(); 554 *indent2_os << StringPrintf("(offset=0x%08x)\n", vmap_table_offset); 555 if (vmap_table_offset > oat_file_.Size()) { 556 *indent2_os << StringPrintf("WARNING: " 557 "vmap table offset 0x%08x is past end of file 0x%08zx. " 558 "vmap table offset was loaded from offset 0x%08x.\n", 559 vmap_table_offset, oat_file_.Size(), 560 oat_method.GetVmapTableOffsetOffset()); 561 success = false; 562 } else if (options_->dump_vmap_) { 563 DumpVmap(*indent2_os, oat_method); 564 } 565 } 566 { 567 *indent1_os << "QuickMethodFrameInfo\n"; 568 569 *indent2_os << StringPrintf("frame_size_in_bytes: %zd\n", oat_method.GetFrameSizeInBytes()); 570 *indent2_os << StringPrintf("core_spill_mask: 0x%08x ", oat_method.GetCoreSpillMask()); 571 DumpSpillMask(*indent2_os, oat_method.GetCoreSpillMask(), false); 572 *indent2_os << "\n"; 573 *indent2_os << StringPrintf("fp_spill_mask: 0x%08x ", oat_method.GetFpSpillMask()); 574 DumpSpillMask(*indent2_os, oat_method.GetFpSpillMask(), true); 575 *indent2_os << "\n"; 576 } 577 { 578 *indent1_os << "CODE: "; 579 uint32_t code_size_offset = oat_method.GetQuickCodeSizeOffset(); 580 if (code_size_offset > oat_file_.Size()) { 581 *indent2_os << StringPrintf("WARNING: " 582 "code size offset 0x%08x is past end of file 0x%08zx.", 583 code_size_offset, oat_file_.Size()); 584 success = false; 585 } else { 586 const void* code = oat_method.GetQuickCode(); 587 uint32_t code_size = oat_method.GetQuickCodeSize(); 588 if (code == nullptr) { 589 code = oat_method.GetPortableCode(); 590 code_size = oat_method.GetPortableCodeSize(); 591 code_size_offset = 0; 592 } 593 uint32_t code_offset = oat_method.GetCodeOffset(); 594 uint32_t aligned_code_begin = AlignCodeOffset(code_offset); 595 uint64_t aligned_code_end = aligned_code_begin + code_size; 596 597 if (options_->absolute_addresses_) { 598 *indent1_os << StringPrintf("%p ", code); 599 } 600 *indent1_os << StringPrintf("(code_offset=0x%08x size_offset=0x%08x size=%u)%s\n", 601 code_offset, 602 code_size_offset, 603 code_size, 604 code != nullptr ? "..." : ""); 605 606 if (aligned_code_begin > oat_file_.Size()) { 607 *indent2_os << StringPrintf("WARNING: " 608 "start of code at 0x%08x is past end of file 0x%08zx.", 609 aligned_code_begin, oat_file_.Size()); 610 success = false; 611 } else if (aligned_code_end > oat_file_.Size()) { 612 *indent2_os << StringPrintf("WARNING: " 613 "end of code at 0x%08" PRIx64 " is past end of file 0x%08zx. " 614 "code size is 0x%08x loaded from offset 0x%08x.\n", 615 aligned_code_end, oat_file_.Size(), 616 code_size, code_size_offset); 617 success = false; 618 if (options_->disassemble_code_) { 619 if (code_size_offset + kPrologueBytes <= oat_file_.Size()) { 620 DumpCode(*indent2_os, verifier.get(), oat_method, code_item, true, kPrologueBytes); 621 } 622 } 623 } else if (code_size > kMaxCodeSize) { 624 *indent2_os << StringPrintf("WARNING: " 625 "code size %d is bigger than max expected threshold of %d. " 626 "code size is 0x%08x loaded from offset 0x%08x.\n", 627 code_size, kMaxCodeSize, 628 code_size, code_size_offset); 629 success = false; 630 if (options_->disassemble_code_) { 631 if (code_size_offset + kPrologueBytes <= oat_file_.Size()) { 632 DumpCode(*indent2_os, verifier.get(), oat_method, code_item, true, kPrologueBytes); 633 } 634 } 635 } else if (options_->disassemble_code_) { 636 DumpCode(*indent2_os, verifier.get(), oat_method, code_item, !success, 0); 637 } 638 } 639 } 640 os << std::flush; 641 return success; 642 } 643 644 void DumpSpillMask(std::ostream& os, uint32_t spill_mask, bool is_float) { 645 if (spill_mask == 0) { 646 return; 647 } 648 os << "("; 649 for (size_t i = 0; i < 32; i++) { 650 if ((spill_mask & (1 << i)) != 0) { 651 if (is_float) { 652 os << "fr" << i; 653 } else { 654 os << "r" << i; 655 } 656 spill_mask ^= 1 << i; // clear bit 657 if (spill_mask != 0) { 658 os << ", "; 659 } else { 660 break; 661 } 662 } 663 } 664 os << ")"; 665 } 666 667 void DumpVmap(std::ostream& os, const OatFile::OatMethod& oat_method) { 668 const uint8_t* raw_table = oat_method.GetVmapTable(); 669 if (raw_table != nullptr) { 670 const VmapTable vmap_table(raw_table); 671 bool first = true; 672 bool processing_fp = false; 673 uint32_t spill_mask = oat_method.GetCoreSpillMask(); 674 for (size_t i = 0; i < vmap_table.Size(); i++) { 675 uint16_t dex_reg = vmap_table[i]; 676 uint32_t cpu_reg = vmap_table.ComputeRegister(spill_mask, i, 677 processing_fp ? kFloatVReg : kIntVReg); 678 os << (first ? "v" : ", v") << dex_reg; 679 if (!processing_fp) { 680 os << "/r" << cpu_reg; 681 } else { 682 os << "/fr" << cpu_reg; 683 } 684 first = false; 685 if (!processing_fp && dex_reg == 0xFFFF) { 686 processing_fp = true; 687 spill_mask = oat_method.GetFpSpillMask(); 688 } 689 } 690 os << "\n"; 691 } 692 } 693 694 void DescribeVReg(std::ostream& os, const OatFile::OatMethod& oat_method, 695 const DexFile::CodeItem* code_item, size_t reg, VRegKind kind) { 696 const uint8_t* raw_table = oat_method.GetVmapTable(); 697 if (raw_table != nullptr) { 698 const VmapTable vmap_table(raw_table); 699 uint32_t vmap_offset; 700 if (vmap_table.IsInContext(reg, kind, &vmap_offset)) { 701 bool is_float = (kind == kFloatVReg) || (kind == kDoubleLoVReg) || (kind == kDoubleHiVReg); 702 uint32_t spill_mask = is_float ? oat_method.GetFpSpillMask() 703 : oat_method.GetCoreSpillMask(); 704 os << (is_float ? "fr" : "r") << vmap_table.ComputeRegister(spill_mask, vmap_offset, kind); 705 } else { 706 uint32_t offset = StackVisitor::GetVRegOffset(code_item, oat_method.GetCoreSpillMask(), 707 oat_method.GetFpSpillMask(), 708 oat_method.GetFrameSizeInBytes(), reg, 709 GetInstructionSet()); 710 os << "[sp + #" << offset << "]"; 711 } 712 } 713 } 714 715 void DumpGcMapRegisters(std::ostream& os, const OatFile::OatMethod& oat_method, 716 const DexFile::CodeItem* code_item, 717 size_t num_regs, const uint8_t* reg_bitmap) { 718 bool first = true; 719 for (size_t reg = 0; reg < num_regs; reg++) { 720 if (((reg_bitmap[reg / 8] >> (reg % 8)) & 0x01) != 0) { 721 if (first) { 722 os << " v" << reg << " ("; 723 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 724 os << ")"; 725 first = false; 726 } else { 727 os << ", v" << reg << " ("; 728 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 729 os << ")"; 730 } 731 } 732 } 733 if (first) { 734 os << "No registers in GC map\n"; 735 } else { 736 os << "\n"; 737 } 738 } 739 void DumpGcMap(std::ostream& os, const OatFile::OatMethod& oat_method, 740 const DexFile::CodeItem* code_item) { 741 const uint8_t* gc_map_raw = oat_method.GetNativeGcMap(); 742 if (gc_map_raw == nullptr) { 743 return; // No GC map. 744 } 745 const void* quick_code = oat_method.GetQuickCode(); 746 if (quick_code != nullptr) { 747 NativePcOffsetToReferenceMap map(gc_map_raw); 748 for (size_t entry = 0; entry < map.NumEntries(); entry++) { 749 const uint8_t* native_pc = reinterpret_cast<const uint8_t*>(quick_code) + 750 map.GetNativePcOffset(entry); 751 os << StringPrintf("%p", native_pc); 752 DumpGcMapRegisters(os, oat_method, code_item, map.RegWidth() * 8, map.GetBitMap(entry)); 753 } 754 } else { 755 const void* portable_code = oat_method.GetPortableCode(); 756 CHECK(portable_code != nullptr); 757 verifier::DexPcToReferenceMap map(gc_map_raw); 758 for (size_t entry = 0; entry < map.NumEntries(); entry++) { 759 uint32_t dex_pc = map.GetDexPc(entry); 760 os << StringPrintf("0x%08x", dex_pc); 761 DumpGcMapRegisters(os, oat_method, code_item, map.RegWidth() * 8, map.GetBitMap(entry)); 762 } 763 } 764 } 765 766 void DumpMappingTable(std::ostream& os, const OatFile::OatMethod& oat_method) { 767 const void* quick_code = oat_method.GetQuickCode(); 768 if (quick_code == nullptr) { 769 return; 770 } 771 MappingTable table(oat_method.GetMappingTable()); 772 if (table.TotalSize() != 0) { 773 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 774 std::ostream indent_os(&indent_filter); 775 if (table.PcToDexSize() != 0) { 776 typedef MappingTable::PcToDexIterator It; 777 os << "suspend point mappings {\n"; 778 for (It cur = table.PcToDexBegin(), end = table.PcToDexEnd(); cur != end; ++cur) { 779 indent_os << StringPrintf("0x%04x -> 0x%04x\n", cur.NativePcOffset(), cur.DexPc()); 780 } 781 os << "}\n"; 782 } 783 if (table.DexToPcSize() != 0) { 784 typedef MappingTable::DexToPcIterator It; 785 os << "catch entry mappings {\n"; 786 for (It cur = table.DexToPcBegin(), end = table.DexToPcEnd(); cur != end; ++cur) { 787 indent_os << StringPrintf("0x%04x -> 0x%04x\n", cur.NativePcOffset(), cur.DexPc()); 788 } 789 os << "}\n"; 790 } 791 } 792 } 793 794 uint32_t DumpMappingAtOffset(std::ostream& os, const OatFile::OatMethod& oat_method, 795 size_t offset, bool suspend_point_mapping) { 796 MappingTable table(oat_method.GetMappingTable()); 797 if (suspend_point_mapping && table.PcToDexSize() > 0) { 798 typedef MappingTable::PcToDexIterator It; 799 for (It cur = table.PcToDexBegin(), end = table.PcToDexEnd(); cur != end; ++cur) { 800 if (offset == cur.NativePcOffset()) { 801 os << StringPrintf("suspend point dex PC: 0x%04x\n", cur.DexPc()); 802 return cur.DexPc(); 803 } 804 } 805 } else if (!suspend_point_mapping && table.DexToPcSize() > 0) { 806 typedef MappingTable::DexToPcIterator It; 807 for (It cur = table.DexToPcBegin(), end = table.DexToPcEnd(); cur != end; ++cur) { 808 if (offset == cur.NativePcOffset()) { 809 os << StringPrintf("catch entry dex PC: 0x%04x\n", cur.DexPc()); 810 return cur.DexPc(); 811 } 812 } 813 } 814 return DexFile::kDexNoIndex; 815 } 816 817 void DumpGcMapAtNativePcOffset(std::ostream& os, const OatFile::OatMethod& oat_method, 818 const DexFile::CodeItem* code_item, size_t native_pc_offset) { 819 const uint8_t* gc_map_raw = oat_method.GetNativeGcMap(); 820 if (gc_map_raw != nullptr) { 821 NativePcOffsetToReferenceMap map(gc_map_raw); 822 if (map.HasEntry(native_pc_offset)) { 823 size_t num_regs = map.RegWidth() * 8; 824 const uint8_t* reg_bitmap = map.FindBitMap(native_pc_offset); 825 bool first = true; 826 for (size_t reg = 0; reg < num_regs; reg++) { 827 if (((reg_bitmap[reg / 8] >> (reg % 8)) & 0x01) != 0) { 828 if (first) { 829 os << "GC map objects: v" << reg << " ("; 830 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 831 os << ")"; 832 first = false; 833 } else { 834 os << ", v" << reg << " ("; 835 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 836 os << ")"; 837 } 838 } 839 } 840 if (!first) { 841 os << "\n"; 842 } 843 } 844 } 845 } 846 847 void DumpVRegsAtDexPc(std::ostream& os, verifier::MethodVerifier* verifier, 848 const OatFile::OatMethod& oat_method, 849 const DexFile::CodeItem* code_item, uint32_t dex_pc) { 850 DCHECK(verifier != nullptr); 851 std::vector<int32_t> kinds = verifier->DescribeVRegs(dex_pc); 852 bool first = true; 853 for (size_t reg = 0; reg < code_item->registers_size_; reg++) { 854 VRegKind kind = static_cast<VRegKind>(kinds.at(reg * 2)); 855 if (kind != kUndefined) { 856 if (first) { 857 os << "VRegs: v"; 858 first = false; 859 } else { 860 os << ", v"; 861 } 862 os << reg << " ("; 863 switch (kind) { 864 case kImpreciseConstant: 865 os << "Imprecise Constant: " << kinds.at((reg * 2) + 1) << ", "; 866 DescribeVReg(os, oat_method, code_item, reg, kind); 867 break; 868 case kConstant: 869 os << "Constant: " << kinds.at((reg * 2) + 1); 870 break; 871 default: 872 DescribeVReg(os, oat_method, code_item, reg, kind); 873 break; 874 } 875 os << ")"; 876 } 877 } 878 if (!first) { 879 os << "\n"; 880 } 881 } 882 883 884 void DumpDexCode(std::ostream& os, const DexFile& dex_file, const DexFile::CodeItem* code_item) { 885 if (code_item != nullptr) { 886 size_t i = 0; 887 while (i < code_item->insns_size_in_code_units_) { 888 const Instruction* instruction = Instruction::At(&code_item->insns_[i]); 889 os << StringPrintf("0x%04zx: %s\n", i, instruction->DumpString(&dex_file).c_str()); 890 i += instruction->SizeInCodeUnits(); 891 } 892 } 893 } 894 895 verifier::MethodVerifier* DumpVerifier(std::ostream& os, uint32_t dex_method_idx, 896 const DexFile* dex_file, 897 const DexFile::ClassDef& class_def, 898 const DexFile::CodeItem* code_item, 899 uint32_t method_access_flags) { 900 if ((method_access_flags & kAccNative) == 0) { 901 ScopedObjectAccess soa(Thread::Current()); 902 StackHandleScope<2> hs(soa.Self()); 903 Handle<mirror::DexCache> dex_cache( 904 hs.NewHandle(Runtime::Current()->GetClassLinker()->FindDexCache(*dex_file))); 905 auto class_loader(hs.NewHandle<mirror::ClassLoader>(nullptr)); 906 return verifier::MethodVerifier::VerifyMethodAndDump(os, dex_method_idx, dex_file, dex_cache, 907 class_loader, &class_def, code_item, 908 nullptr, method_access_flags); 909 } 910 911 return nullptr; 912 } 913 914 void DumpCode(std::ostream& os, verifier::MethodVerifier* verifier, 915 const OatFile::OatMethod& oat_method, const DexFile::CodeItem* code_item, 916 bool bad_input, size_t code_size) { 917 const void* portable_code = oat_method.GetPortableCode(); 918 const void* quick_code = oat_method.GetQuickCode(); 919 920 if (code_size == 0) { 921 code_size = oat_method.GetQuickCodeSize(); 922 } 923 if ((code_size == 0) || ((portable_code == nullptr) && (quick_code == nullptr))) { 924 os << "NO CODE!\n"; 925 return; 926 } else if (quick_code != nullptr) { 927 const uint8_t* quick_native_pc = reinterpret_cast<const uint8_t*>(quick_code); 928 size_t offset = 0; 929 while (offset < code_size) { 930 if (!bad_input) { 931 DumpMappingAtOffset(os, oat_method, offset, false); 932 } 933 offset += disassembler_->Dump(os, quick_native_pc + offset); 934 if (!bad_input) { 935 uint32_t dex_pc = DumpMappingAtOffset(os, oat_method, offset, true); 936 if (dex_pc != DexFile::kDexNoIndex) { 937 DumpGcMapAtNativePcOffset(os, oat_method, code_item, offset); 938 if (verifier != nullptr) { 939 DumpVRegsAtDexPc(os, verifier, oat_method, code_item, dex_pc); 940 } 941 } 942 } 943 } 944 } else { 945 CHECK(portable_code != nullptr); 946 CHECK_EQ(code_size, 0U); // TODO: disassembly of portable is currently not supported. 947 } 948 } 949 950 const OatFile& oat_file_; 951 const std::vector<const OatFile::OatDexFile*> oat_dex_files_; 952 const OatDumperOptions* options_; 953 std::set<uintptr_t> offsets_; 954 Disassembler* disassembler_; 955}; 956 957class ImageDumper { 958 public: 959 explicit ImageDumper(std::ostream* os, gc::space::ImageSpace& image_space, 960 const ImageHeader& image_header, OatDumperOptions* oat_dumper_options) 961 : os_(os), 962 image_space_(image_space), 963 image_header_(image_header), 964 oat_dumper_options_(oat_dumper_options) {} 965 966 bool Dump() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 967 std::ostream& os = *os_; 968 os << "MAGIC: " << image_header_.GetMagic() << "\n\n"; 969 970 os << "IMAGE BEGIN: " << reinterpret_cast<void*>(image_header_.GetImageBegin()) << "\n\n"; 971 972 os << "IMAGE BITMAP OFFSET: " << reinterpret_cast<void*>(image_header_.GetImageBitmapOffset()) 973 << " SIZE: " << reinterpret_cast<void*>(image_header_.GetImageBitmapSize()) << "\n\n"; 974 975 os << "OAT CHECKSUM: " << StringPrintf("0x%08x\n\n", image_header_.GetOatChecksum()); 976 977 os << "OAT FILE BEGIN:" << reinterpret_cast<void*>(image_header_.GetOatFileBegin()) << "\n\n"; 978 979 os << "OAT DATA BEGIN:" << reinterpret_cast<void*>(image_header_.GetOatDataBegin()) << "\n\n"; 980 981 os << "OAT DATA END:" << reinterpret_cast<void*>(image_header_.GetOatDataEnd()) << "\n\n"; 982 983 os << "OAT FILE END:" << reinterpret_cast<void*>(image_header_.GetOatFileEnd()) << "\n\n"; 984 985 os << "PATCH DELTA:" << image_header_.GetPatchDelta() << "\n\n"; 986 987 os << "COMPILE PIC: " << (image_header_.CompilePic() ? "yes" : "no") << "\n\n"; 988 989 { 990 os << "ROOTS: " << reinterpret_cast<void*>(image_header_.GetImageRoots()) << "\n"; 991 Indenter indent1_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 992 std::ostream indent1_os(&indent1_filter); 993 CHECK_EQ(arraysize(image_roots_descriptions_), size_t(ImageHeader::kImageRootsMax)); 994 for (int i = 0; i < ImageHeader::kImageRootsMax; i++) { 995 ImageHeader::ImageRoot image_root = static_cast<ImageHeader::ImageRoot>(i); 996 const char* image_root_description = image_roots_descriptions_[i]; 997 mirror::Object* image_root_object = image_header_.GetImageRoot(image_root); 998 indent1_os << StringPrintf("%s: %p\n", image_root_description, image_root_object); 999 if (image_root_object->IsObjectArray()) { 1000 Indenter indent2_filter(indent1_os.rdbuf(), kIndentChar, kIndentBy1Count); 1001 std::ostream indent2_os(&indent2_filter); 1002 mirror::ObjectArray<mirror::Object>* image_root_object_array 1003 = image_root_object->AsObjectArray<mirror::Object>(); 1004 for (int i = 0; i < image_root_object_array->GetLength(); i++) { 1005 mirror::Object* value = image_root_object_array->Get(i); 1006 size_t run = 0; 1007 for (int32_t j = i + 1; j < image_root_object_array->GetLength(); j++) { 1008 if (value == image_root_object_array->Get(j)) { 1009 run++; 1010 } else { 1011 break; 1012 } 1013 } 1014 if (run == 0) { 1015 indent2_os << StringPrintf("%d: ", i); 1016 } else { 1017 indent2_os << StringPrintf("%d to %zd: ", i, i + run); 1018 i = i + run; 1019 } 1020 if (value != nullptr) { 1021 PrettyObjectValue(indent2_os, value->GetClass(), value); 1022 } else { 1023 indent2_os << i << ": null\n"; 1024 } 1025 } 1026 } 1027 } 1028 } 1029 os << "\n"; 1030 1031 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 1032 std::string image_filename = image_space_.GetImageFilename(); 1033 std::string oat_location = ImageHeader::GetOatLocationFromImageLocation(image_filename); 1034 os << "OAT LOCATION: " << oat_location; 1035 os << "\n"; 1036 std::string error_msg; 1037 const OatFile* oat_file = class_linker->FindOpenedOatFileFromOatLocation(oat_location); 1038 if (oat_file == nullptr) { 1039 oat_file = OatFile::Open(oat_location, oat_location, nullptr, nullptr, false, &error_msg); 1040 if (oat_file == nullptr) { 1041 os << "NOT FOUND: " << error_msg << "\n"; 1042 return false; 1043 } 1044 } 1045 os << "\n"; 1046 1047 stats_.oat_file_bytes = oat_file->Size(); 1048 1049 oat_dumper_.reset(new OatDumper(*oat_file, oat_dumper_options_.release())); 1050 1051 for (const OatFile::OatDexFile* oat_dex_file : oat_file->GetOatDexFiles()) { 1052 CHECK(oat_dex_file != nullptr); 1053 stats_.oat_dex_file_sizes.push_back(std::make_pair(oat_dex_file->GetDexFileLocation(), 1054 oat_dex_file->FileSize())); 1055 } 1056 1057 os << "OBJECTS:\n" << std::flush; 1058 1059 // Loop through all the image spaces and dump their objects. 1060 gc::Heap* heap = Runtime::Current()->GetHeap(); 1061 const std::vector<gc::space::ContinuousSpace*>& spaces = heap->GetContinuousSpaces(); 1062 Thread* self = Thread::Current(); 1063 { 1064 { 1065 WriterMutexLock mu(self, *Locks::heap_bitmap_lock_); 1066 heap->FlushAllocStack(); 1067 } 1068 // Since FlushAllocStack() above resets the (active) allocation 1069 // stack. Need to revoke the thread-local allocation stacks that 1070 // point into it. 1071 { 1072 self->TransitionFromRunnableToSuspended(kNative); 1073 ThreadList* thread_list = Runtime::Current()->GetThreadList(); 1074 thread_list->SuspendAll(); 1075 heap->RevokeAllThreadLocalAllocationStacks(self); 1076 thread_list->ResumeAll(); 1077 self->TransitionFromSuspendedToRunnable(); 1078 } 1079 } 1080 { 1081 std::ostream* saved_os = os_; 1082 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 1083 std::ostream indent_os(&indent_filter); 1084 os_ = &indent_os; 1085 ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_); 1086 for (const auto& space : spaces) { 1087 if (space->IsImageSpace()) { 1088 gc::space::ImageSpace* image_space = space->AsImageSpace(); 1089 image_space->GetLiveBitmap()->Walk(ImageDumper::Callback, this); 1090 indent_os << "\n"; 1091 } 1092 } 1093 // Dump the large objects separately. 1094 heap->GetLargeObjectsSpace()->GetLiveBitmap()->Walk(ImageDumper::Callback, this); 1095 indent_os << "\n"; 1096 os_ = saved_os; 1097 } 1098 os << "STATS:\n" << std::flush; 1099 std::unique_ptr<File> file(OS::OpenFileForReading(image_filename.c_str())); 1100 if (file.get() == nullptr) { 1101 LOG(WARNING) << "Failed to find image in " << image_filename; 1102 } 1103 if (file.get() != nullptr) { 1104 stats_.file_bytes = file->GetLength(); 1105 } 1106 size_t header_bytes = sizeof(ImageHeader); 1107 stats_.header_bytes = header_bytes; 1108 size_t alignment_bytes = RoundUp(header_bytes, kObjectAlignment) - header_bytes; 1109 stats_.alignment_bytes += alignment_bytes; 1110 stats_.alignment_bytes += image_header_.GetImageBitmapOffset() - image_header_.GetImageSize(); 1111 stats_.bitmap_bytes += image_header_.GetImageBitmapSize(); 1112 stats_.Dump(os); 1113 os << "\n"; 1114 1115 os << std::flush; 1116 1117 return oat_dumper_->Dump(os); 1118 } 1119 1120 private: 1121 static void PrettyObjectValue(std::ostream& os, mirror::Class* type, mirror::Object* value) 1122 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1123 CHECK(type != nullptr); 1124 if (value == nullptr) { 1125 os << StringPrintf("null %s\n", PrettyDescriptor(type).c_str()); 1126 } else if (type->IsStringClass()) { 1127 mirror::String* string = value->AsString(); 1128 os << StringPrintf("%p String: %s\n", string, 1129 PrintableString(string->ToModifiedUtf8().c_str()).c_str()); 1130 } else if (type->IsClassClass()) { 1131 mirror::Class* klass = value->AsClass(); 1132 os << StringPrintf("%p Class: %s\n", klass, PrettyDescriptor(klass).c_str()); 1133 } else if (type->IsArtFieldClass()) { 1134 mirror::ArtField* field = value->AsArtField(); 1135 os << StringPrintf("%p Field: %s\n", field, PrettyField(field).c_str()); 1136 } else if (type->IsArtMethodClass()) { 1137 mirror::ArtMethod* method = value->AsArtMethod(); 1138 os << StringPrintf("%p Method: %s\n", method, PrettyMethod(method).c_str()); 1139 } else { 1140 os << StringPrintf("%p %s\n", value, PrettyDescriptor(type).c_str()); 1141 } 1142 } 1143 1144 static void PrintField(std::ostream& os, mirror::ArtField* field, mirror::Object* obj) 1145 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1146 const char* descriptor = field->GetTypeDescriptor(); 1147 os << StringPrintf("%s: ", field->GetName()); 1148 if (descriptor[0] != 'L' && descriptor[0] != '[') { 1149 StackHandleScope<1> hs(Thread::Current()); 1150 FieldHelper fh(hs.NewHandle(field)); 1151 mirror::Class* type = fh.GetType(); 1152 if (type->IsPrimitiveLong()) { 1153 os << StringPrintf("%" PRId64 " (0x%" PRIx64 ")\n", field->Get64(obj), field->Get64(obj)); 1154 } else if (type->IsPrimitiveDouble()) { 1155 os << StringPrintf("%f (%a)\n", field->GetDouble(obj), field->GetDouble(obj)); 1156 } else if (type->IsPrimitiveFloat()) { 1157 os << StringPrintf("%f (%a)\n", field->GetFloat(obj), field->GetFloat(obj)); 1158 } else { 1159 DCHECK(type->IsPrimitive()); 1160 os << StringPrintf("%d (0x%x)\n", field->Get32(obj), field->Get32(obj)); 1161 } 1162 } else { 1163 // Get the value, don't compute the type unless it is non-null as we don't want 1164 // to cause class loading. 1165 mirror::Object* value = field->GetObj(obj); 1166 if (value == nullptr) { 1167 os << StringPrintf("null %s\n", PrettyDescriptor(descriptor).c_str()); 1168 } else { 1169 // Grab the field type without causing resolution. 1170 StackHandleScope<1> hs(Thread::Current()); 1171 FieldHelper fh(hs.NewHandle(field)); 1172 mirror::Class* field_type = fh.GetType(false); 1173 if (field_type != nullptr) { 1174 PrettyObjectValue(os, field_type, value); 1175 } else { 1176 os << StringPrintf("%p %s\n", value, PrettyDescriptor(descriptor).c_str()); 1177 } 1178 } 1179 } 1180 } 1181 1182 static void DumpFields(std::ostream& os, mirror::Object* obj, mirror::Class* klass) 1183 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1184 mirror::Class* super = klass->GetSuperClass(); 1185 if (super != nullptr) { 1186 DumpFields(os, obj, super); 1187 } 1188 mirror::ObjectArray<mirror::ArtField>* fields = klass->GetIFields(); 1189 if (fields != nullptr) { 1190 for (int32_t i = 0; i < fields->GetLength(); i++) { 1191 mirror::ArtField* field = fields->Get(i); 1192 PrintField(os, field, obj); 1193 } 1194 } 1195 } 1196 1197 bool InDumpSpace(const mirror::Object* object) { 1198 return image_space_.Contains(object); 1199 } 1200 1201 const void* GetQuickOatCodeBegin(mirror::ArtMethod* m) 1202 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1203 const void* quick_code = m->GetEntryPointFromQuickCompiledCode(); 1204 if (quick_code == Runtime::Current()->GetClassLinker()->GetQuickResolutionTrampoline()) { 1205 quick_code = oat_dumper_->GetQuickOatCode(m); 1206 } 1207 if (oat_dumper_->GetInstructionSet() == kThumb2) { 1208 quick_code = reinterpret_cast<void*>(reinterpret_cast<uintptr_t>(quick_code) & ~0x1); 1209 } 1210 return quick_code; 1211 } 1212 1213 uint32_t GetQuickOatCodeSize(mirror::ArtMethod* m) 1214 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1215 const uint32_t* oat_code_begin = reinterpret_cast<const uint32_t*>(GetQuickOatCodeBegin(m)); 1216 if (oat_code_begin == nullptr) { 1217 return 0; 1218 } 1219 return oat_code_begin[-1]; 1220 } 1221 1222 const void* GetQuickOatCodeEnd(mirror::ArtMethod* m) 1223 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1224 const uint8_t* oat_code_begin = reinterpret_cast<const uint8_t*>(GetQuickOatCodeBegin(m)); 1225 if (oat_code_begin == nullptr) { 1226 return nullptr; 1227 } 1228 return oat_code_begin + GetQuickOatCodeSize(m); 1229 } 1230 1231 static void Callback(mirror::Object* obj, void* arg) 1232 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1233 DCHECK(obj != nullptr); 1234 DCHECK(arg != nullptr); 1235 ImageDumper* state = reinterpret_cast<ImageDumper*>(arg); 1236 if (!state->InDumpSpace(obj)) { 1237 return; 1238 } 1239 1240 size_t object_bytes = obj->SizeOf(); 1241 size_t alignment_bytes = RoundUp(object_bytes, kObjectAlignment) - object_bytes; 1242 state->stats_.object_bytes += object_bytes; 1243 state->stats_.alignment_bytes += alignment_bytes; 1244 1245 std::ostream& os = *state->os_; 1246 mirror::Class* obj_class = obj->GetClass(); 1247 if (obj_class->IsArrayClass()) { 1248 os << StringPrintf("%p: %s length:%d\n", obj, PrettyDescriptor(obj_class).c_str(), 1249 obj->AsArray()->GetLength()); 1250 } else if (obj->IsClass()) { 1251 mirror::Class* klass = obj->AsClass(); 1252 os << StringPrintf("%p: java.lang.Class \"%s\" (", obj, PrettyDescriptor(klass).c_str()) 1253 << klass->GetStatus() << ")\n"; 1254 } else if (obj->IsArtField()) { 1255 os << StringPrintf("%p: java.lang.reflect.ArtField %s\n", obj, 1256 PrettyField(obj->AsArtField()).c_str()); 1257 } else if (obj->IsArtMethod()) { 1258 os << StringPrintf("%p: java.lang.reflect.ArtMethod %s\n", obj, 1259 PrettyMethod(obj->AsArtMethod()).c_str()); 1260 } else if (obj_class->IsStringClass()) { 1261 os << StringPrintf("%p: java.lang.String %s\n", obj, 1262 PrintableString(obj->AsString()->ToModifiedUtf8().c_str()).c_str()); 1263 } else { 1264 os << StringPrintf("%p: %s\n", obj, PrettyDescriptor(obj_class).c_str()); 1265 } 1266 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 1267 std::ostream indent_os(&indent_filter); 1268 DumpFields(indent_os, obj, obj_class); 1269 if (obj->IsObjectArray()) { 1270 mirror::ObjectArray<mirror::Object>* obj_array = obj->AsObjectArray<mirror::Object>(); 1271 int32_t length = obj_array->GetLength(); 1272 for (int32_t i = 0; i < length; i++) { 1273 mirror::Object* value = obj_array->Get(i); 1274 size_t run = 0; 1275 for (int32_t j = i + 1; j < length; j++) { 1276 if (value == obj_array->Get(j)) { 1277 run++; 1278 } else { 1279 break; 1280 } 1281 } 1282 if (run == 0) { 1283 indent_os << StringPrintf("%d: ", i); 1284 } else { 1285 indent_os << StringPrintf("%d to %zd: ", i, i + run); 1286 i = i + run; 1287 } 1288 mirror::Class* value_class = 1289 (value == nullptr) ? obj_class->GetComponentType() : value->GetClass(); 1290 PrettyObjectValue(indent_os, value_class, value); 1291 } 1292 } else if (obj->IsClass()) { 1293 mirror::ObjectArray<mirror::ArtField>* sfields = obj->AsClass()->GetSFields(); 1294 if (sfields != nullptr) { 1295 indent_os << "STATICS:\n"; 1296 Indenter indent2_filter(indent_os.rdbuf(), kIndentChar, kIndentBy1Count); 1297 std::ostream indent2_os(&indent2_filter); 1298 for (int32_t i = 0; i < sfields->GetLength(); i++) { 1299 mirror::ArtField* field = sfields->Get(i); 1300 PrintField(indent2_os, field, field->GetDeclaringClass()); 1301 } 1302 } 1303 } else if (obj->IsArtMethod()) { 1304 mirror::ArtMethod* method = obj->AsArtMethod(); 1305 if (method->IsNative()) { 1306 // TODO: portable dumping. 1307 DCHECK(method->GetNativeGcMap() == nullptr) << PrettyMethod(method); 1308 DCHECK(method->GetMappingTable() == nullptr) << PrettyMethod(method); 1309 bool first_occurrence; 1310 const void* quick_oat_code = state->GetQuickOatCodeBegin(method); 1311 uint32_t quick_oat_code_size = state->GetQuickOatCodeSize(method); 1312 state->ComputeOatSize(quick_oat_code, &first_occurrence); 1313 if (first_occurrence) { 1314 state->stats_.native_to_managed_code_bytes += quick_oat_code_size; 1315 } 1316 if (quick_oat_code != method->GetEntryPointFromQuickCompiledCode()) { 1317 indent_os << StringPrintf("OAT CODE: %p\n", quick_oat_code); 1318 } 1319 } else if (method->IsAbstract() || method->IsCalleeSaveMethod() || 1320 method->IsResolutionMethod() || method->IsImtConflictMethod() || 1321 method->IsImtUnimplementedMethod() || method->IsClassInitializer()) { 1322 DCHECK(method->GetNativeGcMap() == nullptr) << PrettyMethod(method); 1323 DCHECK(method->GetMappingTable() == nullptr) << PrettyMethod(method); 1324 } else { 1325 const DexFile::CodeItem* code_item = method->GetCodeItem(); 1326 size_t dex_instruction_bytes = code_item->insns_size_in_code_units_ * 2; 1327 state->stats_.dex_instruction_bytes += dex_instruction_bytes; 1328 1329 bool first_occurrence; 1330 size_t gc_map_bytes = state->ComputeOatSize(method->GetNativeGcMap(), &first_occurrence); 1331 if (first_occurrence) { 1332 state->stats_.gc_map_bytes += gc_map_bytes; 1333 } 1334 1335 size_t pc_mapping_table_bytes = 1336 state->ComputeOatSize(method->GetMappingTable(), &first_occurrence); 1337 if (first_occurrence) { 1338 state->stats_.pc_mapping_table_bytes += pc_mapping_table_bytes; 1339 } 1340 1341 size_t vmap_table_bytes = 1342 state->ComputeOatSize(method->GetVmapTable(), &first_occurrence); 1343 if (first_occurrence) { 1344 state->stats_.vmap_table_bytes += vmap_table_bytes; 1345 } 1346 1347 // TODO: portable dumping. 1348 const void* quick_oat_code_begin = state->GetQuickOatCodeBegin(method); 1349 const void* quick_oat_code_end = state->GetQuickOatCodeEnd(method); 1350 uint32_t quick_oat_code_size = state->GetQuickOatCodeSize(method); 1351 state->ComputeOatSize(quick_oat_code_begin, &first_occurrence); 1352 if (first_occurrence) { 1353 state->stats_.managed_code_bytes += quick_oat_code_size; 1354 if (method->IsConstructor()) { 1355 if (method->IsStatic()) { 1356 state->stats_.class_initializer_code_bytes += quick_oat_code_size; 1357 } else if (dex_instruction_bytes > kLargeConstructorDexBytes) { 1358 state->stats_.large_initializer_code_bytes += quick_oat_code_size; 1359 } 1360 } else if (dex_instruction_bytes > kLargeMethodDexBytes) { 1361 state->stats_.large_method_code_bytes += quick_oat_code_size; 1362 } 1363 } 1364 state->stats_.managed_code_bytes_ignoring_deduplication += quick_oat_code_size; 1365 1366 indent_os << StringPrintf("OAT CODE: %p-%p\n", quick_oat_code_begin, quick_oat_code_end); 1367 indent_os << StringPrintf("SIZE: Dex Instructions=%zd GC=%zd Mapping=%zd\n", 1368 dex_instruction_bytes, gc_map_bytes, pc_mapping_table_bytes); 1369 1370 size_t total_size = dex_instruction_bytes + gc_map_bytes + pc_mapping_table_bytes + 1371 vmap_table_bytes + quick_oat_code_size + object_bytes; 1372 1373 double expansion = 1374 static_cast<double>(quick_oat_code_size) / static_cast<double>(dex_instruction_bytes); 1375 state->stats_.ComputeOutliers(total_size, expansion, method); 1376 } 1377 } 1378 std::string temp; 1379 state->stats_.Update(obj_class->GetDescriptor(&temp), object_bytes); 1380 } 1381 1382 std::set<const void*> already_seen_; 1383 // Compute the size of the given data within the oat file and whether this is the first time 1384 // this data has been requested 1385 size_t ComputeOatSize(const void* oat_data, bool* first_occurrence) { 1386 if (already_seen_.count(oat_data) == 0) { 1387 *first_occurrence = true; 1388 already_seen_.insert(oat_data); 1389 } else { 1390 *first_occurrence = false; 1391 } 1392 return oat_dumper_->ComputeSize(oat_data); 1393 } 1394 1395 public: 1396 struct Stats { 1397 size_t oat_file_bytes; 1398 size_t file_bytes; 1399 1400 size_t header_bytes; 1401 size_t object_bytes; 1402 size_t bitmap_bytes; 1403 size_t alignment_bytes; 1404 1405 size_t managed_code_bytes; 1406 size_t managed_code_bytes_ignoring_deduplication; 1407 size_t managed_to_native_code_bytes; 1408 size_t native_to_managed_code_bytes; 1409 size_t class_initializer_code_bytes; 1410 size_t large_initializer_code_bytes; 1411 size_t large_method_code_bytes; 1412 1413 size_t gc_map_bytes; 1414 size_t pc_mapping_table_bytes; 1415 size_t vmap_table_bytes; 1416 1417 size_t dex_instruction_bytes; 1418 1419 std::vector<mirror::ArtMethod*> method_outlier; 1420 std::vector<size_t> method_outlier_size; 1421 std::vector<double> method_outlier_expansion; 1422 std::vector<std::pair<std::string, size_t>> oat_dex_file_sizes; 1423 1424 explicit Stats() 1425 : oat_file_bytes(0), 1426 file_bytes(0), 1427 header_bytes(0), 1428 object_bytes(0), 1429 bitmap_bytes(0), 1430 alignment_bytes(0), 1431 managed_code_bytes(0), 1432 managed_code_bytes_ignoring_deduplication(0), 1433 managed_to_native_code_bytes(0), 1434 native_to_managed_code_bytes(0), 1435 class_initializer_code_bytes(0), 1436 large_initializer_code_bytes(0), 1437 large_method_code_bytes(0), 1438 gc_map_bytes(0), 1439 pc_mapping_table_bytes(0), 1440 vmap_table_bytes(0), 1441 dex_instruction_bytes(0) {} 1442 1443 struct SizeAndCount { 1444 SizeAndCount(size_t bytes, size_t count) : bytes(bytes), count(count) {} 1445 size_t bytes; 1446 size_t count; 1447 }; 1448 typedef SafeMap<std::string, SizeAndCount> SizeAndCountTable; 1449 SizeAndCountTable sizes_and_counts; 1450 1451 void Update(const char* descriptor, size_t object_bytes) { 1452 SizeAndCountTable::iterator it = sizes_and_counts.find(descriptor); 1453 if (it != sizes_and_counts.end()) { 1454 it->second.bytes += object_bytes; 1455 it->second.count += 1; 1456 } else { 1457 sizes_and_counts.Put(descriptor, SizeAndCount(object_bytes, 1)); 1458 } 1459 } 1460 1461 double PercentOfOatBytes(size_t size) { 1462 return (static_cast<double>(size) / static_cast<double>(oat_file_bytes)) * 100; 1463 } 1464 1465 double PercentOfFileBytes(size_t size) { 1466 return (static_cast<double>(size) / static_cast<double>(file_bytes)) * 100; 1467 } 1468 1469 double PercentOfObjectBytes(size_t size) { 1470 return (static_cast<double>(size) / static_cast<double>(object_bytes)) * 100; 1471 } 1472 1473 void ComputeOutliers(size_t total_size, double expansion, mirror::ArtMethod* method) { 1474 method_outlier_size.push_back(total_size); 1475 method_outlier_expansion.push_back(expansion); 1476 method_outlier.push_back(method); 1477 } 1478 1479 void DumpOutliers(std::ostream& os) 1480 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1481 size_t sum_of_sizes = 0; 1482 size_t sum_of_sizes_squared = 0; 1483 size_t sum_of_expansion = 0; 1484 size_t sum_of_expansion_squared = 0; 1485 size_t n = method_outlier_size.size(); 1486 for (size_t i = 0; i < n; i++) { 1487 size_t cur_size = method_outlier_size[i]; 1488 sum_of_sizes += cur_size; 1489 sum_of_sizes_squared += cur_size * cur_size; 1490 double cur_expansion = method_outlier_expansion[i]; 1491 sum_of_expansion += cur_expansion; 1492 sum_of_expansion_squared += cur_expansion * cur_expansion; 1493 } 1494 size_t size_mean = sum_of_sizes / n; 1495 size_t size_variance = (sum_of_sizes_squared - sum_of_sizes * size_mean) / (n - 1); 1496 double expansion_mean = sum_of_expansion / n; 1497 double expansion_variance = 1498 (sum_of_expansion_squared - sum_of_expansion * expansion_mean) / (n - 1); 1499 1500 // Dump methods whose size is a certain number of standard deviations from the mean 1501 size_t dumped_values = 0; 1502 size_t skipped_values = 0; 1503 for (size_t i = 100; i > 0; i--) { // i is the current number of standard deviations 1504 size_t cur_size_variance = i * i * size_variance; 1505 bool first = true; 1506 for (size_t j = 0; j < n; j++) { 1507 size_t cur_size = method_outlier_size[j]; 1508 if (cur_size > size_mean) { 1509 size_t cur_var = cur_size - size_mean; 1510 cur_var = cur_var * cur_var; 1511 if (cur_var > cur_size_variance) { 1512 if (dumped_values > 20) { 1513 if (i == 1) { 1514 skipped_values++; 1515 } else { 1516 i = 2; // jump to counting for 1 standard deviation 1517 break; 1518 } 1519 } else { 1520 if (first) { 1521 os << "\nBig methods (size > " << i << " standard deviations the norm):\n"; 1522 first = false; 1523 } 1524 os << PrettyMethod(method_outlier[j]) << " requires storage of " 1525 << PrettySize(cur_size) << "\n"; 1526 method_outlier_size[j] = 0; // don't consider this method again 1527 dumped_values++; 1528 } 1529 } 1530 } 1531 } 1532 } 1533 if (skipped_values > 0) { 1534 os << "... skipped " << skipped_values 1535 << " methods with size > 1 standard deviation from the norm\n"; 1536 } 1537 os << std::flush; 1538 1539 // Dump methods whose expansion is a certain number of standard deviations from the mean 1540 dumped_values = 0; 1541 skipped_values = 0; 1542 for (size_t i = 10; i > 0; i--) { // i is the current number of standard deviations 1543 double cur_expansion_variance = i * i * expansion_variance; 1544 bool first = true; 1545 for (size_t j = 0; j < n; j++) { 1546 double cur_expansion = method_outlier_expansion[j]; 1547 if (cur_expansion > expansion_mean) { 1548 size_t cur_var = cur_expansion - expansion_mean; 1549 cur_var = cur_var * cur_var; 1550 if (cur_var > cur_expansion_variance) { 1551 if (dumped_values > 20) { 1552 if (i == 1) { 1553 skipped_values++; 1554 } else { 1555 i = 2; // jump to counting for 1 standard deviation 1556 break; 1557 } 1558 } else { 1559 if (first) { 1560 os << "\nLarge expansion methods (size > " << i 1561 << " standard deviations the norm):\n"; 1562 first = false; 1563 } 1564 os << PrettyMethod(method_outlier[j]) << " expanded code by " 1565 << cur_expansion << "\n"; 1566 method_outlier_expansion[j] = 0.0; // don't consider this method again 1567 dumped_values++; 1568 } 1569 } 1570 } 1571 } 1572 } 1573 if (skipped_values > 0) { 1574 os << "... skipped " << skipped_values 1575 << " methods with expansion > 1 standard deviation from the norm\n"; 1576 } 1577 os << "\n" << std::flush; 1578 } 1579 1580 void Dump(std::ostream& os) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1581 { 1582 os << "art_file_bytes = " << PrettySize(file_bytes) << "\n\n" 1583 << "art_file_bytes = header_bytes + object_bytes + alignment_bytes\n"; 1584 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 1585 std::ostream indent_os(&indent_filter); 1586 indent_os << StringPrintf("header_bytes = %8zd (%2.0f%% of art file bytes)\n" 1587 "object_bytes = %8zd (%2.0f%% of art file bytes)\n" 1588 "bitmap_bytes = %8zd (%2.0f%% of art file bytes)\n" 1589 "alignment_bytes = %8zd (%2.0f%% of art file bytes)\n\n", 1590 header_bytes, PercentOfFileBytes(header_bytes), 1591 object_bytes, PercentOfFileBytes(object_bytes), 1592 bitmap_bytes, PercentOfFileBytes(bitmap_bytes), 1593 alignment_bytes, PercentOfFileBytes(alignment_bytes)) 1594 << std::flush; 1595 CHECK_EQ(file_bytes, bitmap_bytes + header_bytes + object_bytes + alignment_bytes); 1596 } 1597 1598 os << "object_bytes breakdown:\n"; 1599 size_t object_bytes_total = 0; 1600 for (const auto& sizes_and_count : sizes_and_counts) { 1601 const std::string& descriptor(sizes_and_count.first); 1602 double average = static_cast<double>(sizes_and_count.second.bytes) / 1603 static_cast<double>(sizes_and_count.second.count); 1604 double percent = PercentOfObjectBytes(sizes_and_count.second.bytes); 1605 os << StringPrintf("%32s %8zd bytes %6zd instances " 1606 "(%4.0f bytes/instance) %2.0f%% of object_bytes\n", 1607 descriptor.c_str(), sizes_and_count.second.bytes, 1608 sizes_and_count.second.count, average, percent); 1609 object_bytes_total += sizes_and_count.second.bytes; 1610 } 1611 os << "\n" << std::flush; 1612 CHECK_EQ(object_bytes, object_bytes_total); 1613 1614 os << StringPrintf("oat_file_bytes = %8zd\n" 1615 "managed_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1616 "managed_to_native_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1617 "native_to_managed_code_bytes = %8zd (%2.0f%% of oat file bytes)\n\n" 1618 "class_initializer_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1619 "large_initializer_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1620 "large_method_code_bytes = %8zd (%2.0f%% of oat file bytes)\n\n", 1621 oat_file_bytes, 1622 managed_code_bytes, 1623 PercentOfOatBytes(managed_code_bytes), 1624 managed_to_native_code_bytes, 1625 PercentOfOatBytes(managed_to_native_code_bytes), 1626 native_to_managed_code_bytes, 1627 PercentOfOatBytes(native_to_managed_code_bytes), 1628 class_initializer_code_bytes, 1629 PercentOfOatBytes(class_initializer_code_bytes), 1630 large_initializer_code_bytes, 1631 PercentOfOatBytes(large_initializer_code_bytes), 1632 large_method_code_bytes, 1633 PercentOfOatBytes(large_method_code_bytes)) 1634 << "DexFile sizes:\n"; 1635 for (const std::pair<std::string, size_t>& oat_dex_file_size : oat_dex_file_sizes) { 1636 os << StringPrintf("%s = %zd (%2.0f%% of oat file bytes)\n", 1637 oat_dex_file_size.first.c_str(), oat_dex_file_size.second, 1638 PercentOfOatBytes(oat_dex_file_size.second)); 1639 } 1640 1641 os << "\n" << StringPrintf("gc_map_bytes = %7zd (%2.0f%% of oat file bytes)\n" 1642 "pc_mapping_table_bytes = %7zd (%2.0f%% of oat file bytes)\n" 1643 "vmap_table_bytes = %7zd (%2.0f%% of oat file bytes)\n\n", 1644 gc_map_bytes, PercentOfOatBytes(gc_map_bytes), 1645 pc_mapping_table_bytes, PercentOfOatBytes(pc_mapping_table_bytes), 1646 vmap_table_bytes, PercentOfOatBytes(vmap_table_bytes)) 1647 << std::flush; 1648 1649 os << StringPrintf("dex_instruction_bytes = %zd\n", dex_instruction_bytes) 1650 << StringPrintf("managed_code_bytes expansion = %.2f (ignoring deduplication %.2f)\n\n", 1651 static_cast<double>(managed_code_bytes) / 1652 static_cast<double>(dex_instruction_bytes), 1653 static_cast<double>(managed_code_bytes_ignoring_deduplication) / 1654 static_cast<double>(dex_instruction_bytes)) 1655 << std::flush; 1656 1657 DumpOutliers(os); 1658 } 1659 } stats_; 1660 1661 private: 1662 enum { 1663 // Number of bytes for a constructor to be considered large. Based on the 1000 basic block 1664 // threshold, we assume 2 bytes per instruction and 2 instructions per block. 1665 kLargeConstructorDexBytes = 4000, 1666 // Number of bytes for a method to be considered large. Based on the 4000 basic block 1667 // threshold, we assume 2 bytes per instruction and 2 instructions per block. 1668 kLargeMethodDexBytes = 16000 1669 }; 1670 std::ostream* os_; 1671 gc::space::ImageSpace& image_space_; 1672 const ImageHeader& image_header_; 1673 std::unique_ptr<OatDumper> oat_dumper_; 1674 std::unique_ptr<OatDumperOptions> oat_dumper_options_; 1675 1676 DISALLOW_COPY_AND_ASSIGN(ImageDumper); 1677}; 1678 1679static int oatdump(int argc, char** argv) { 1680 InitLogging(argv); 1681 1682 // Skip over argv[0]. 1683 argv++; 1684 argc--; 1685 1686 if (argc == 0) { 1687 fprintf(stderr, "No arguments specified\n"); 1688 usage(); 1689 } 1690 1691 const char* oat_filename = nullptr; 1692 const char* image_location = nullptr; 1693 const char* boot_image_location = nullptr; 1694 InstructionSet instruction_set = kRuntimeISA; 1695 std::string elf_filename_prefix; 1696 std::ostream* os = &std::cout; 1697 std::unique_ptr<std::ofstream> out; 1698 bool dump_raw_mapping_table = false; 1699 bool dump_raw_gc_map = false; 1700 bool dump_vmap = true; 1701 bool disassemble_code = true; 1702 1703 for (int i = 0; i < argc; i++) { 1704 const StringPiece option(argv[i]); 1705 if (option.starts_with("--oat-file=")) { 1706 oat_filename = option.substr(strlen("--oat-file=")).data(); 1707 } else if (option.starts_with("--image=")) { 1708 image_location = option.substr(strlen("--image=")).data(); 1709 } else if (option.starts_with("--boot-image=")) { 1710 boot_image_location = option.substr(strlen("--boot-image=")).data(); 1711 } else if (option.starts_with("--instruction-set=")) { 1712 StringPiece instruction_set_str = option.substr(strlen("--instruction-set=")).data(); 1713 if (instruction_set_str == "arm") { 1714 instruction_set = kThumb2; 1715 } else if (instruction_set_str == "arm64") { 1716 instruction_set = kArm64; 1717 } else if (instruction_set_str == "mips") { 1718 instruction_set = kMips; 1719 } else if (instruction_set_str == "x86") { 1720 instruction_set = kX86; 1721 } else if (instruction_set_str == "x86_64") { 1722 instruction_set = kX86_64; 1723 } 1724 } else if (option =="--dump:raw_mapping_table") { 1725 dump_raw_mapping_table = true; 1726 } else if (option == "--dump:raw_gc_map") { 1727 dump_raw_gc_map = true; 1728 } else if (option == "--no-dump:vmap") { 1729 dump_vmap = false; 1730 } else if (option == "--no-disassemble") { 1731 disassemble_code = false; 1732 } else if (option.starts_with("--output=")) { 1733 const char* filename = option.substr(strlen("--output=")).data(); 1734 out.reset(new std::ofstream(filename)); 1735 if (!out->good()) { 1736 fprintf(stderr, "Failed to open output filename %s\n", filename); 1737 usage(); 1738 } 1739 os = out.get(); 1740 } else { 1741 fprintf(stderr, "Unknown argument %s\n", option.data()); 1742 usage(); 1743 } 1744 } 1745 1746 if (image_location == nullptr && oat_filename == nullptr) { 1747 fprintf(stderr, "Either --image or --oat must be specified\n"); 1748 return EXIT_FAILURE; 1749 } 1750 1751 if (image_location != nullptr && oat_filename != nullptr) { 1752 fprintf(stderr, "Either --image or --oat must be specified but not both\n"); 1753 return EXIT_FAILURE; 1754 } 1755 1756 // If we are only doing the oat file, disable absolute_addresses. Keep them for image dumping. 1757 bool absolute_addresses = (oat_filename == nullptr); 1758 std::unique_ptr<OatDumperOptions> oat_dumper_options(new OatDumperOptions(dump_raw_mapping_table, 1759 dump_raw_gc_map, 1760 dump_vmap, 1761 disassemble_code, 1762 absolute_addresses)); 1763 MemMap::Init(); 1764 if (oat_filename != nullptr) { 1765 std::string error_msg; 1766 OatFile* oat_file = 1767 OatFile::Open(oat_filename, oat_filename, nullptr, nullptr, false, &error_msg); 1768 if (oat_file == nullptr) { 1769 fprintf(stderr, "Failed to open oat file from '%s': %s\n", oat_filename, error_msg.c_str()); 1770 return EXIT_FAILURE; 1771 } 1772 OatDumper oat_dumper(*oat_file, oat_dumper_options.release()); 1773 bool success = oat_dumper.Dump(*os); 1774 return (success) ? EXIT_SUCCESS : EXIT_FAILURE; 1775 } 1776 1777 RuntimeOptions options; 1778 std::string image_option; 1779 std::string oat_option; 1780 std::string boot_image_option; 1781 std::string boot_oat_option; 1782 1783 // We are more like a compiler than a run-time. We don't want to execute code. 1784 NoopCompilerCallbacks callbacks; 1785 options.push_back(std::make_pair("compilercallbacks", &callbacks)); 1786 1787 if (boot_image_location != nullptr) { 1788 boot_image_option += "-Ximage:"; 1789 boot_image_option += boot_image_location; 1790 options.push_back(std::make_pair(boot_image_option.c_str(), nullptr)); 1791 } 1792 if (image_location != nullptr) { 1793 image_option += "-Ximage:"; 1794 image_option += image_location; 1795 options.push_back(std::make_pair(image_option.c_str(), nullptr)); 1796 } 1797 options.push_back( 1798 std::make_pair("imageinstructionset", 1799 reinterpret_cast<const void*>(GetInstructionSetString(instruction_set)))); 1800 1801 if (!Runtime::Create(options, false)) { 1802 fprintf(stderr, "Failed to create runtime\n"); 1803 return EXIT_FAILURE; 1804 } 1805 std::unique_ptr<Runtime> runtime(Runtime::Current()); 1806 // Runtime::Create acquired the mutator_lock_ that is normally given away when we Runtime::Start, 1807 // give it away now and then switch to a more manageable ScopedObjectAccess. 1808 Thread::Current()->TransitionFromRunnableToSuspended(kNative); 1809 ScopedObjectAccess soa(Thread::Current()); 1810 gc::Heap* heap = Runtime::Current()->GetHeap(); 1811 gc::space::ImageSpace* image_space = heap->GetImageSpace(); 1812 CHECK(image_space != nullptr); 1813 const ImageHeader& image_header = image_space->GetImageHeader(); 1814 if (!image_header.IsValid()) { 1815 fprintf(stderr, "Invalid image header %s\n", image_location); 1816 return EXIT_FAILURE; 1817 } 1818 ImageDumper image_dumper(os, *image_space, image_header, oat_dumper_options.release()); 1819 bool success = image_dumper.Dump(); 1820 return (success) ? EXIT_SUCCESS : EXIT_FAILURE; 1821} 1822 1823} // namespace art 1824 1825int main(int argc, char** argv) { 1826 return art::oatdump(argc, argv); 1827} 1828