oatdump.cc revision a59dd80f9f48cb750d329d4d4af2d99d72b484d1
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 file based on the image location\n" 80 " 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|raw_gc_map]\n" 91 " Example: --dump:raw_gc_map\n" 92 " Default: neither\n" 93 "\n"); 94 exit(EXIT_FAILURE); 95} 96 97const char* image_roots_descriptions_[] = { 98 "kResolutionMethod", 99 "kImtConflictMethod", 100 "kDefaultImt", 101 "kCalleeSaveMethod", 102 "kRefsOnlySaveMethod", 103 "kRefsAndArgsSaveMethod", 104 "kDexCaches", 105 "kClassRoots", 106}; 107 108class OatDumper { 109 public: 110 explicit OatDumper(const OatFile& oat_file, bool dump_raw_mapping_table, bool dump_raw_gc_map) 111 : oat_file_(oat_file), 112 oat_dex_files_(oat_file.GetOatDexFiles()), 113 dump_raw_mapping_table_(dump_raw_mapping_table), 114 dump_raw_gc_map_(dump_raw_gc_map), 115 disassembler_(Disassembler::Create(oat_file_.GetOatHeader().GetInstructionSet())) { 116 AddAllOffsets(); 117 } 118 119 void Dump(std::ostream& os) { 120 const OatHeader& oat_header = oat_file_.GetOatHeader(); 121 122 os << "MAGIC:\n"; 123 os << oat_header.GetMagic() << "\n\n"; 124 125 os << "CHECKSUM:\n"; 126 os << StringPrintf("0x%08x\n\n", oat_header.GetChecksum()); 127 128 os << "INSTRUCTION SET:\n"; 129 os << oat_header.GetInstructionSet() << "\n\n"; 130 131 os << "INSTRUCTION SET FEATURES:\n"; 132 os << oat_header.GetInstructionSetFeatures().GetFeatureString() << "\n\n"; 133 134 os << "DEX FILE COUNT:\n"; 135 os << oat_header.GetDexFileCount() << "\n\n"; 136 137#define DUMP_OAT_HEADER_OFFSET(label, offset) \ 138 os << label " OFFSET:\n"; \ 139 os << StringPrintf("0x%08x", oat_header.offset()); \ 140 if (oat_header.offset() != 0) { \ 141 os << StringPrintf(" (%p)", oat_file_.Begin() + oat_header.offset()); \ 142 } \ 143 os << StringPrintf("\n\n"); 144 145 DUMP_OAT_HEADER_OFFSET("EXECUTABLE", GetExecutableOffset); 146 DUMP_OAT_HEADER_OFFSET("INTERPRETER TO INTERPRETER BRIDGE", 147 GetInterpreterToInterpreterBridgeOffset); 148 DUMP_OAT_HEADER_OFFSET("INTERPRETER TO COMPILED CODE BRIDGE", 149 GetInterpreterToCompiledCodeBridgeOffset); 150 DUMP_OAT_HEADER_OFFSET("JNI DLSYM LOOKUP", 151 GetJniDlsymLookupOffset); 152 DUMP_OAT_HEADER_OFFSET("PORTABLE IMT CONFLICT TRAMPOLINE", 153 GetPortableImtConflictTrampolineOffset); 154 DUMP_OAT_HEADER_OFFSET("PORTABLE RESOLUTION TRAMPOLINE", 155 GetPortableResolutionTrampolineOffset); 156 DUMP_OAT_HEADER_OFFSET("PORTABLE TO INTERPRETER BRIDGE", 157 GetPortableToInterpreterBridgeOffset); 158 DUMP_OAT_HEADER_OFFSET("QUICK GENERIC JNI TRAMPOLINE", 159 GetQuickGenericJniTrampolineOffset); 160 DUMP_OAT_HEADER_OFFSET("QUICK IMT CONFLICT TRAMPOLINE", 161 GetQuickImtConflictTrampolineOffset); 162 DUMP_OAT_HEADER_OFFSET("QUICK RESOLUTION TRAMPOLINE", 163 GetQuickResolutionTrampolineOffset); 164 DUMP_OAT_HEADER_OFFSET("QUICK TO INTERPRETER BRIDGE", 165 GetQuickToInterpreterBridgeOffset); 166#undef DUMP_OAT_HEADER_OFFSET 167 168 os << "IMAGE PATCH DELTA:\n" << oat_header.GetImagePatchDelta(); 169 170 os << "IMAGE FILE LOCATION OAT CHECKSUM:\n"; 171 os << StringPrintf("0x%08x\n\n", oat_header.GetImageFileLocationOatChecksum()); 172 173 os << "IMAGE FILE LOCATION OAT BEGIN:\n"; 174 os << StringPrintf("0x%08x\n\n", oat_header.GetImageFileLocationOatDataBegin()); 175 176 // Print the key-value store. 177 { 178 os << "KEY VALUE STORE:\n"; 179 size_t index = 0; 180 const char* key; 181 const char* value; 182 while (oat_header.GetStoreKeyValuePairByIndex(index, &key, &value)) { 183 os << key << " = " << value << "\n"; 184 index++; 185 } 186 os << "\n"; 187 } 188 189 os << "BEGIN:\n"; 190 os << reinterpret_cast<const void*>(oat_file_.Begin()) << "\n\n"; 191 192 os << "END:\n"; 193 os << reinterpret_cast<const void*>(oat_file_.End()) << "\n\n"; 194 195 os << std::flush; 196 197 for (size_t i = 0; i < oat_dex_files_.size(); i++) { 198 const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i]; 199 CHECK(oat_dex_file != NULL); 200 DumpOatDexFile(os, *oat_dex_file); 201 } 202 } 203 204 size_t ComputeSize(const void* oat_data) { 205 if (reinterpret_cast<const byte*>(oat_data) < oat_file_.Begin() || 206 reinterpret_cast<const byte*>(oat_data) > oat_file_.End()) { 207 return 0; // Address not in oat file 208 } 209 uintptr_t begin_offset = reinterpret_cast<uintptr_t>(oat_data) - 210 reinterpret_cast<uintptr_t>(oat_file_.Begin()); 211 auto it = offsets_.upper_bound(begin_offset); 212 CHECK(it != offsets_.end()); 213 uintptr_t end_offset = *it; 214 return end_offset - begin_offset; 215 } 216 217 InstructionSet GetInstructionSet() { 218 return oat_file_.GetOatHeader().GetInstructionSet(); 219 } 220 221 const void* GetQuickOatCode(mirror::ArtMethod* m) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 222 for (size_t i = 0; i < oat_dex_files_.size(); i++) { 223 const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i]; 224 CHECK(oat_dex_file != nullptr); 225 std::string error_msg; 226 std::unique_ptr<const DexFile> dex_file(oat_dex_file->OpenDexFile(&error_msg)); 227 if (dex_file.get() == nullptr) { 228 LOG(WARNING) << "Failed to open dex file '" << oat_dex_file->GetDexFileLocation() 229 << "': " << error_msg; 230 } else { 231 const DexFile::ClassDef* class_def = 232 dex_file->FindClassDef(m->GetDeclaringClassDescriptor()); 233 if (class_def != NULL) { 234 uint16_t class_def_index = dex_file->GetIndexForClassDef(*class_def); 235 const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(class_def_index); 236 size_t method_index = m->GetMethodIndex(); 237 return oat_class.GetOatMethod(method_index).GetQuickCode(); 238 } 239 } 240 } 241 return NULL; 242 } 243 244 private: 245 void AddAllOffsets() { 246 // We don't know the length of the code for each method, but we need to know where to stop 247 // when disassembling. What we do know is that a region of code will be followed by some other 248 // region, so if we keep a sorted sequence of the start of each region, we can infer the length 249 // of a piece of code by using upper_bound to find the start of the next region. 250 for (size_t i = 0; i < oat_dex_files_.size(); i++) { 251 const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i]; 252 CHECK(oat_dex_file != NULL); 253 std::string error_msg; 254 std::unique_ptr<const DexFile> dex_file(oat_dex_file->OpenDexFile(&error_msg)); 255 if (dex_file.get() == nullptr) { 256 LOG(WARNING) << "Failed to open dex file '" << oat_dex_file->GetDexFileLocation() 257 << "': " << error_msg; 258 continue; 259 } 260 offsets_.insert(reinterpret_cast<uintptr_t>(&dex_file->GetHeader())); 261 for (size_t class_def_index = 0; 262 class_def_index < dex_file->NumClassDefs(); 263 class_def_index++) { 264 const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index); 265 const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(class_def_index); 266 const byte* class_data = dex_file->GetClassData(class_def); 267 if (class_data != NULL) { 268 ClassDataItemIterator it(*dex_file, class_data); 269 SkipAllFields(it); 270 uint32_t class_method_index = 0; 271 while (it.HasNextDirectMethod()) { 272 AddOffsets(oat_class.GetOatMethod(class_method_index++)); 273 it.Next(); 274 } 275 while (it.HasNextVirtualMethod()) { 276 AddOffsets(oat_class.GetOatMethod(class_method_index++)); 277 it.Next(); 278 } 279 } 280 } 281 } 282 283 // If the last thing in the file is code for a method, there won't be an offset for the "next" 284 // thing. Instead of having a special case in the upper_bound code, let's just add an entry 285 // for the end of the file. 286 offsets_.insert(oat_file_.Size()); 287 } 288 289 void AddOffsets(const OatFile::OatMethod& oat_method) { 290 uint32_t code_offset = oat_method.GetCodeOffset(); 291 if (oat_file_.GetOatHeader().GetInstructionSet() == kThumb2) { 292 code_offset &= ~0x1; 293 } 294 offsets_.insert(code_offset); 295 offsets_.insert(oat_method.GetMappingTableOffset()); 296 offsets_.insert(oat_method.GetVmapTableOffset()); 297 offsets_.insert(oat_method.GetNativeGcMapOffset()); 298 } 299 300 void DumpOatDexFile(std::ostream& os, const OatFile::OatDexFile& oat_dex_file) { 301 os << "OAT DEX FILE:\n"; 302 os << StringPrintf("location: %s\n", oat_dex_file.GetDexFileLocation().c_str()); 303 os << StringPrintf("checksum: 0x%08x\n", oat_dex_file.GetDexFileLocationChecksum()); 304 305 // Create the verifier early. 306 307 std::string error_msg; 308 std::unique_ptr<const DexFile> dex_file(oat_dex_file.OpenDexFile(&error_msg)); 309 if (dex_file.get() == NULL) { 310 os << "NOT FOUND: " << error_msg << "\n\n"; 311 return; 312 } 313 for (size_t class_def_index = 0; 314 class_def_index < dex_file->NumClassDefs(); 315 class_def_index++) { 316 const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index); 317 const char* descriptor = dex_file->GetClassDescriptor(class_def); 318 const OatFile::OatClass oat_class = oat_dex_file.GetOatClass(class_def_index); 319 os << StringPrintf("%zd: %s (type_idx=%d)", class_def_index, descriptor, class_def.class_idx_) 320 << " (" << oat_class.GetStatus() << ")" 321 << " (" << oat_class.GetType() << ")\n"; 322 // TODO: include bitmap here if type is kOatClassSomeCompiled? 323 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 324 std::ostream indented_os(&indent_filter); 325 DumpOatClass(indented_os, oat_class, *(dex_file.get()), class_def); 326 } 327 328 os << std::flush; 329 } 330 331 static void SkipAllFields(ClassDataItemIterator& it) { 332 while (it.HasNextStaticField()) { 333 it.Next(); 334 } 335 while (it.HasNextInstanceField()) { 336 it.Next(); 337 } 338 } 339 340 void DumpOatClass(std::ostream& os, const OatFile::OatClass& oat_class, const DexFile& dex_file, 341 const DexFile::ClassDef& class_def) { 342 const byte* class_data = dex_file.GetClassData(class_def); 343 if (class_data == NULL) { // empty class such as a marker interface? 344 return; 345 } 346 ClassDataItemIterator it(dex_file, class_data); 347 SkipAllFields(it); 348 uint32_t class_method_idx = 0; 349 while (it.HasNextDirectMethod()) { 350 const OatFile::OatMethod oat_method = oat_class.GetOatMethod(class_method_idx); 351 DumpOatMethod(os, class_def, class_method_idx, oat_method, dex_file, 352 it.GetMemberIndex(), it.GetMethodCodeItem(), it.GetMemberAccessFlags()); 353 class_method_idx++; 354 it.Next(); 355 } 356 while (it.HasNextVirtualMethod()) { 357 const OatFile::OatMethod oat_method = oat_class.GetOatMethod(class_method_idx); 358 DumpOatMethod(os, class_def, class_method_idx, oat_method, dex_file, 359 it.GetMemberIndex(), it.GetMethodCodeItem(), it.GetMemberAccessFlags()); 360 class_method_idx++; 361 it.Next(); 362 } 363 DCHECK(!it.HasNext()); 364 os << std::flush; 365 } 366 367 void DumpOatMethod(std::ostream& os, const DexFile::ClassDef& class_def, 368 uint32_t class_method_index, 369 const OatFile::OatMethod& oat_method, const DexFile& dex_file, 370 uint32_t dex_method_idx, const DexFile::CodeItem* code_item, 371 uint32_t method_access_flags) { 372 os << StringPrintf("%d: %s (dex_method_idx=%d)\n", 373 class_method_index, PrettyMethod(dex_method_idx, dex_file, true).c_str(), 374 dex_method_idx); 375 Indenter indent1_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 376 std::unique_ptr<std::ostream> indent1_os(new std::ostream(&indent1_filter)); 377 Indenter indent2_filter(indent1_os->rdbuf(), kIndentChar, kIndentBy1Count); 378 std::unique_ptr<std::ostream> indent2_os(new std::ostream(&indent2_filter)); 379 { 380 *indent1_os << "DEX CODE:\n"; 381 DumpDexCode(*indent2_os, dex_file, code_item); 382 } 383 if (Runtime::Current() != NULL) { 384 *indent1_os << "VERIFIER TYPE ANALYSIS:\n"; 385 DumpVerifier(*indent2_os, dex_method_idx, &dex_file, class_def, code_item, 386 method_access_flags); 387 } 388 { 389 *indent1_os << "OAT DATA:\n"; 390 391 *indent2_os << StringPrintf("frame_size_in_bytes: %zd\n", oat_method.GetFrameSizeInBytes()); 392 *indent2_os << StringPrintf("core_spill_mask: 0x%08x ", oat_method.GetCoreSpillMask()); 393 DumpSpillMask(*indent2_os, oat_method.GetCoreSpillMask(), false); 394 *indent2_os << StringPrintf("\nfp_spill_mask: 0x%08x ", oat_method.GetFpSpillMask()); 395 DumpSpillMask(*indent2_os, oat_method.GetFpSpillMask(), true); 396 *indent2_os << StringPrintf("\nvmap_table: %p (offset=0x%08x)\n", 397 oat_method.GetVmapTable(), oat_method.GetVmapTableOffset()); 398 DumpVmap(*indent2_os, oat_method); 399 *indent2_os << StringPrintf("mapping_table: %p (offset=0x%08x)\n", 400 oat_method.GetMappingTable(), oat_method.GetMappingTableOffset()); 401 if (dump_raw_mapping_table_) { 402 Indenter indent3_filter(indent2_os->rdbuf(), kIndentChar, kIndentBy1Count); 403 std::ostream indent3_os(&indent3_filter); 404 DumpMappingTable(indent3_os, oat_method); 405 } 406 *indent2_os << StringPrintf("gc_map: %p (offset=0x%08x)\n", 407 oat_method.GetNativeGcMap(), oat_method.GetNativeGcMapOffset()); 408 if (dump_raw_gc_map_) { 409 Indenter indent3_filter(indent2_os->rdbuf(), kIndentChar, kIndentBy1Count); 410 std::ostream indent3_os(&indent3_filter); 411 DumpGcMap(indent3_os, oat_method, code_item); 412 } 413 } 414 { 415 const void* code = oat_method.GetQuickCode(); 416 uint32_t code_size = oat_method.GetQuickCodeSize(); 417 if (code == nullptr) { 418 code = oat_method.GetPortableCode(); 419 code_size = oat_method.GetPortableCodeSize(); 420 } 421 *indent1_os << StringPrintf("CODE: %p (offset=0x%08x size=%d)%s\n", 422 code, 423 oat_method.GetCodeOffset(), 424 code_size, 425 code != nullptr ? "..." : ""); 426 427 Runtime* runtime = Runtime::Current(); 428 if (runtime != nullptr) { 429 ScopedObjectAccess soa(Thread::Current()); 430 StackHandleScope<1> hs(soa.Self()); 431 Handle<mirror::DexCache> dex_cache( 432 hs.NewHandle(runtime->GetClassLinker()->FindDexCache(dex_file))); 433 NullHandle<mirror::ClassLoader> class_loader; 434 verifier::MethodVerifier verifier(&dex_file, &dex_cache, &class_loader, &class_def, 435 code_item, dex_method_idx, nullptr, method_access_flags, 436 true, true, true); 437 verifier.Verify(); 438 DumpCode(*indent2_os, &verifier, oat_method, code_item); 439 } else { 440 DumpCode(*indent2_os, nullptr, oat_method, code_item); 441 } 442 } 443 } 444 445 void DumpSpillMask(std::ostream& os, uint32_t spill_mask, bool is_float) { 446 if (spill_mask == 0) { 447 return; 448 } 449 os << "("; 450 for (size_t i = 0; i < 32; i++) { 451 if ((spill_mask & (1 << i)) != 0) { 452 if (is_float) { 453 os << "fr" << i; 454 } else { 455 os << "r" << i; 456 } 457 spill_mask ^= 1 << i; // clear bit 458 if (spill_mask != 0) { 459 os << ", "; 460 } else { 461 break; 462 } 463 } 464 } 465 os << ")"; 466 } 467 468 void DumpVmap(std::ostream& os, const OatFile::OatMethod& oat_method) { 469 const uint8_t* raw_table = oat_method.GetVmapTable(); 470 if (raw_table != NULL) { 471 const VmapTable vmap_table(raw_table); 472 bool first = true; 473 bool processing_fp = false; 474 uint32_t spill_mask = oat_method.GetCoreSpillMask(); 475 for (size_t i = 0; i < vmap_table.Size(); i++) { 476 uint16_t dex_reg = vmap_table[i]; 477 uint32_t cpu_reg = vmap_table.ComputeRegister(spill_mask, i, 478 processing_fp ? kFloatVReg : kIntVReg); 479 os << (first ? "v" : ", v") << dex_reg; 480 if (!processing_fp) { 481 os << "/r" << cpu_reg; 482 } else { 483 os << "/fr" << cpu_reg; 484 } 485 first = false; 486 if (!processing_fp && dex_reg == 0xFFFF) { 487 processing_fp = true; 488 spill_mask = oat_method.GetFpSpillMask(); 489 } 490 } 491 os << "\n"; 492 } 493 } 494 495 void DescribeVReg(std::ostream& os, const OatFile::OatMethod& oat_method, 496 const DexFile::CodeItem* code_item, size_t reg, VRegKind kind) { 497 const uint8_t* raw_table = oat_method.GetVmapTable(); 498 if (raw_table != NULL) { 499 const VmapTable vmap_table(raw_table); 500 uint32_t vmap_offset; 501 if (vmap_table.IsInContext(reg, kind, &vmap_offset)) { 502 bool is_float = (kind == kFloatVReg) || (kind == kDoubleLoVReg) || (kind == kDoubleHiVReg); 503 uint32_t spill_mask = is_float ? oat_method.GetFpSpillMask() 504 : oat_method.GetCoreSpillMask(); 505 os << (is_float ? "fr" : "r") << vmap_table.ComputeRegister(spill_mask, vmap_offset, kind); 506 } else { 507 uint32_t offset = StackVisitor::GetVRegOffset(code_item, oat_method.GetCoreSpillMask(), 508 oat_method.GetFpSpillMask(), 509 oat_method.GetFrameSizeInBytes(), reg, 510 GetInstructionSet()); 511 os << "[sp + #" << offset << "]"; 512 } 513 } 514 } 515 516 void DumpGcMapRegisters(std::ostream& os, const OatFile::OatMethod& oat_method, 517 const DexFile::CodeItem* code_item, 518 size_t num_regs, const uint8_t* reg_bitmap) { 519 bool first = true; 520 for (size_t reg = 0; reg < num_regs; reg++) { 521 if (((reg_bitmap[reg / 8] >> (reg % 8)) & 0x01) != 0) { 522 if (first) { 523 os << " v" << reg << " ("; 524 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 525 os << ")"; 526 first = false; 527 } else { 528 os << ", v" << reg << " ("; 529 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 530 os << ")"; 531 } 532 } 533 } 534 if (first) { 535 os << "No registers in GC map\n"; 536 } else { 537 os << "\n"; 538 } 539 } 540 void DumpGcMap(std::ostream& os, const OatFile::OatMethod& oat_method, 541 const DexFile::CodeItem* code_item) { 542 const uint8_t* gc_map_raw = oat_method.GetNativeGcMap(); 543 if (gc_map_raw == nullptr) { 544 return; // No GC map. 545 } 546 const void* quick_code = oat_method.GetQuickCode(); 547 if (quick_code != nullptr) { 548 NativePcOffsetToReferenceMap map(gc_map_raw); 549 for (size_t entry = 0; entry < map.NumEntries(); entry++) { 550 const uint8_t* native_pc = reinterpret_cast<const uint8_t*>(quick_code) + 551 map.GetNativePcOffset(entry); 552 os << StringPrintf("%p", native_pc); 553 DumpGcMapRegisters(os, oat_method, code_item, map.RegWidth() * 8, map.GetBitMap(entry)); 554 } 555 } else { 556 const void* portable_code = oat_method.GetPortableCode(); 557 CHECK(portable_code != nullptr); 558 verifier::DexPcToReferenceMap map(gc_map_raw); 559 for (size_t entry = 0; entry < map.NumEntries(); entry++) { 560 uint32_t dex_pc = map.GetDexPc(entry); 561 os << StringPrintf("0x%08x", dex_pc); 562 DumpGcMapRegisters(os, oat_method, code_item, map.RegWidth() * 8, map.GetBitMap(entry)); 563 } 564 } 565 } 566 567 void DumpMappingTable(std::ostream& os, const OatFile::OatMethod& oat_method) { 568 const void* quick_code = oat_method.GetQuickCode(); 569 if (quick_code == nullptr) { 570 return; 571 } 572 MappingTable table(oat_method.GetMappingTable()); 573 if (table.TotalSize() != 0) { 574 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 575 std::ostream indent_os(&indent_filter); 576 if (table.PcToDexSize() != 0) { 577 typedef MappingTable::PcToDexIterator It; 578 os << "suspend point mappings {\n"; 579 for (It cur = table.PcToDexBegin(), end = table.PcToDexEnd(); cur != end; ++cur) { 580 indent_os << StringPrintf("0x%04x -> 0x%04x\n", cur.NativePcOffset(), cur.DexPc()); 581 } 582 os << "}\n"; 583 } 584 if (table.DexToPcSize() != 0) { 585 typedef MappingTable::DexToPcIterator It; 586 os << "catch entry mappings {\n"; 587 for (It cur = table.DexToPcBegin(), end = table.DexToPcEnd(); cur != end; ++cur) { 588 indent_os << StringPrintf("0x%04x -> 0x%04x\n", cur.NativePcOffset(), cur.DexPc()); 589 } 590 os << "}\n"; 591 } 592 } 593 } 594 595 uint32_t DumpMappingAtOffset(std::ostream& os, const OatFile::OatMethod& oat_method, 596 size_t offset, bool suspend_point_mapping) { 597 MappingTable table(oat_method.GetMappingTable()); 598 if (suspend_point_mapping && table.PcToDexSize() > 0) { 599 typedef MappingTable::PcToDexIterator It; 600 for (It cur = table.PcToDexBegin(), end = table.PcToDexEnd(); cur != end; ++cur) { 601 if (offset == cur.NativePcOffset()) { 602 os << StringPrintf("suspend point dex PC: 0x%04x\n", cur.DexPc()); 603 return cur.DexPc(); 604 } 605 } 606 } else if (!suspend_point_mapping && table.DexToPcSize() > 0) { 607 typedef MappingTable::DexToPcIterator It; 608 for (It cur = table.DexToPcBegin(), end = table.DexToPcEnd(); cur != end; ++cur) { 609 if (offset == cur.NativePcOffset()) { 610 os << StringPrintf("catch entry dex PC: 0x%04x\n", cur.DexPc()); 611 return cur.DexPc(); 612 } 613 } 614 } 615 return DexFile::kDexNoIndex; 616 } 617 618 void DumpGcMapAtNativePcOffset(std::ostream& os, const OatFile::OatMethod& oat_method, 619 const DexFile::CodeItem* code_item, size_t native_pc_offset) { 620 const uint8_t* gc_map_raw = oat_method.GetNativeGcMap(); 621 if (gc_map_raw != NULL) { 622 NativePcOffsetToReferenceMap map(gc_map_raw); 623 if (map.HasEntry(native_pc_offset)) { 624 size_t num_regs = map.RegWidth() * 8; 625 const uint8_t* reg_bitmap = map.FindBitMap(native_pc_offset); 626 bool first = true; 627 for (size_t reg = 0; reg < num_regs; reg++) { 628 if (((reg_bitmap[reg / 8] >> (reg % 8)) & 0x01) != 0) { 629 if (first) { 630 os << "GC map objects: v" << reg << " ("; 631 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 632 os << ")"; 633 first = false; 634 } else { 635 os << ", v" << reg << " ("; 636 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 637 os << ")"; 638 } 639 } 640 } 641 if (!first) { 642 os << "\n"; 643 } 644 } 645 } 646 } 647 648 void DumpVRegsAtDexPc(std::ostream& os, verifier::MethodVerifier* verifier, 649 const OatFile::OatMethod& oat_method, 650 const DexFile::CodeItem* code_item, uint32_t dex_pc) { 651 DCHECK(verifier != nullptr); 652 std::vector<int32_t> kinds = verifier->DescribeVRegs(dex_pc); 653 bool first = true; 654 for (size_t reg = 0; reg < code_item->registers_size_; reg++) { 655 VRegKind kind = static_cast<VRegKind>(kinds.at(reg * 2)); 656 if (kind != kUndefined) { 657 if (first) { 658 os << "VRegs: v"; 659 first = false; 660 } else { 661 os << ", v"; 662 } 663 os << reg << " ("; 664 switch (kind) { 665 case kImpreciseConstant: 666 os << "Imprecise Constant: " << kinds.at((reg * 2) + 1) << ", "; 667 DescribeVReg(os, oat_method, code_item, reg, kind); 668 break; 669 case kConstant: 670 os << "Constant: " << kinds.at((reg * 2) + 1); 671 break; 672 default: 673 DescribeVReg(os, oat_method, code_item, reg, kind); 674 break; 675 } 676 os << ")"; 677 } 678 } 679 if (!first) { 680 os << "\n"; 681 } 682 } 683 684 685 void DumpDexCode(std::ostream& os, const DexFile& dex_file, const DexFile::CodeItem* code_item) { 686 if (code_item != NULL) { 687 size_t i = 0; 688 while (i < code_item->insns_size_in_code_units_) { 689 const Instruction* instruction = Instruction::At(&code_item->insns_[i]); 690 os << StringPrintf("0x%04zx: %s\n", i, instruction->DumpString(&dex_file).c_str()); 691 i += instruction->SizeInCodeUnits(); 692 } 693 } 694 } 695 696 void DumpVerifier(std::ostream& os, uint32_t dex_method_idx, const DexFile* dex_file, 697 const DexFile::ClassDef& class_def, const DexFile::CodeItem* code_item, 698 uint32_t method_access_flags) { 699 if ((method_access_flags & kAccNative) == 0) { 700 ScopedObjectAccess soa(Thread::Current()); 701 StackHandleScope<2> hs(soa.Self()); 702 Handle<mirror::DexCache> dex_cache( 703 hs.NewHandle(Runtime::Current()->GetClassLinker()->FindDexCache(*dex_file))); 704 auto class_loader(hs.NewHandle<mirror::ClassLoader>(nullptr)); 705 verifier::MethodVerifier::VerifyMethodAndDump(os, dex_method_idx, dex_file, dex_cache, 706 class_loader, &class_def, code_item, nullptr, 707 method_access_flags); 708 } 709 } 710 711 void DumpCode(std::ostream& os, verifier::MethodVerifier* verifier, 712 const OatFile::OatMethod& oat_method, const DexFile::CodeItem* code_item) { 713 const void* portable_code = oat_method.GetPortableCode(); 714 const void* quick_code = oat_method.GetQuickCode(); 715 716 size_t code_size = oat_method.GetQuickCodeSize(); 717 if ((code_size == 0) || ((portable_code == nullptr) && (quick_code == nullptr))) { 718 os << "NO CODE!\n"; 719 return; 720 } else if (quick_code != nullptr) { 721 const uint8_t* quick_native_pc = reinterpret_cast<const uint8_t*>(quick_code); 722 size_t offset = 0; 723 while (offset < code_size) { 724 DumpMappingAtOffset(os, oat_method, offset, false); 725 offset += disassembler_->Dump(os, quick_native_pc + offset); 726 uint32_t dex_pc = DumpMappingAtOffset(os, oat_method, offset, true); 727 if (dex_pc != DexFile::kDexNoIndex) { 728 DumpGcMapAtNativePcOffset(os, oat_method, code_item, offset); 729 if (verifier != nullptr) { 730 DumpVRegsAtDexPc(os, verifier, oat_method, code_item, dex_pc); 731 } 732 } 733 } 734 } else { 735 CHECK(portable_code != nullptr); 736 CHECK_EQ(code_size, 0U); // TODO: disassembly of portable is currently not supported. 737 } 738 } 739 740 const OatFile& oat_file_; 741 std::vector<const OatFile::OatDexFile*> oat_dex_files_; 742 bool dump_raw_mapping_table_; 743 bool dump_raw_gc_map_; 744 std::set<uintptr_t> offsets_; 745 std::unique_ptr<Disassembler> disassembler_; 746}; 747 748class ImageDumper { 749 public: 750 explicit ImageDumper(std::ostream* os, gc::space::ImageSpace& image_space, 751 const ImageHeader& image_header, bool dump_raw_mapping_table, 752 bool dump_raw_gc_map) 753 : os_(os), image_space_(image_space), image_header_(image_header), 754 dump_raw_mapping_table_(dump_raw_mapping_table), 755 dump_raw_gc_map_(dump_raw_gc_map) {} 756 757 void Dump() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 758 std::ostream& os = *os_; 759 os << "MAGIC: " << image_header_.GetMagic() << "\n\n"; 760 761 os << "IMAGE BEGIN: " << reinterpret_cast<void*>(image_header_.GetImageBegin()) << "\n\n"; 762 763 os << "IMAGE BITMAP OFFSET: " << reinterpret_cast<void*>(image_header_.GetImageBitmapOffset()) 764 << " SIZE: " << reinterpret_cast<void*>(image_header_.GetImageBitmapSize()) << "\n\n"; 765 766 os << "OAT CHECKSUM: " << StringPrintf("0x%08x\n\n", image_header_.GetOatChecksum()); 767 768 os << "OAT FILE BEGIN:" << reinterpret_cast<void*>(image_header_.GetOatFileBegin()) << "\n\n"; 769 770 os << "OAT DATA BEGIN:" << reinterpret_cast<void*>(image_header_.GetOatDataBegin()) << "\n\n"; 771 772 os << "OAT DATA END:" << reinterpret_cast<void*>(image_header_.GetOatDataEnd()) << "\n\n"; 773 774 os << "OAT FILE END:" << reinterpret_cast<void*>(image_header_.GetOatFileEnd()) << "\n\n"; 775 776 os << "PATCH DELTA:" << image_header_.GetPatchDelta() << "\n\n"; 777 778 { 779 os << "ROOTS: " << reinterpret_cast<void*>(image_header_.GetImageRoots()) << "\n"; 780 Indenter indent1_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 781 std::ostream indent1_os(&indent1_filter); 782 CHECK_EQ(arraysize(image_roots_descriptions_), size_t(ImageHeader::kImageRootsMax)); 783 for (int i = 0; i < ImageHeader::kImageRootsMax; i++) { 784 ImageHeader::ImageRoot image_root = static_cast<ImageHeader::ImageRoot>(i); 785 const char* image_root_description = image_roots_descriptions_[i]; 786 mirror::Object* image_root_object = image_header_.GetImageRoot(image_root); 787 indent1_os << StringPrintf("%s: %p\n", image_root_description, image_root_object); 788 if (image_root_object->IsObjectArray()) { 789 Indenter indent2_filter(indent1_os.rdbuf(), kIndentChar, kIndentBy1Count); 790 std::ostream indent2_os(&indent2_filter); 791 mirror::ObjectArray<mirror::Object>* image_root_object_array 792 = image_root_object->AsObjectArray<mirror::Object>(); 793 for (int i = 0; i < image_root_object_array->GetLength(); i++) { 794 mirror::Object* value = image_root_object_array->Get(i); 795 size_t run = 0; 796 for (int32_t j = i + 1; j < image_root_object_array->GetLength(); j++) { 797 if (value == image_root_object_array->Get(j)) { 798 run++; 799 } else { 800 break; 801 } 802 } 803 if (run == 0) { 804 indent2_os << StringPrintf("%d: ", i); 805 } else { 806 indent2_os << StringPrintf("%d to %zd: ", i, i + run); 807 i = i + run; 808 } 809 if (value != NULL) { 810 PrettyObjectValue(indent2_os, value->GetClass(), value); 811 } else { 812 indent2_os << i << ": null\n"; 813 } 814 } 815 } 816 } 817 } 818 os << "\n"; 819 820 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 821 std::string image_filename = image_space_.GetImageFilename(); 822 std::string oat_location = ImageHeader::GetOatLocationFromImageLocation(image_filename); 823 os << "OAT LOCATION: " << oat_location; 824 os << "\n"; 825 std::string error_msg; 826 const OatFile* oat_file = class_linker->FindOpenedOatFileFromOatLocation(oat_location); 827 if (oat_file == nullptr) { 828 oat_file = OatFile::Open(oat_location, oat_location, NULL, false, &error_msg); 829 if (oat_file == nullptr) { 830 os << "NOT FOUND: " << error_msg << "\n"; 831 return; 832 } 833 } 834 os << "\n"; 835 836 stats_.oat_file_bytes = oat_file->Size(); 837 838 oat_dumper_.reset(new OatDumper(*oat_file, dump_raw_mapping_table_, 839 dump_raw_gc_map_)); 840 841 for (const OatFile::OatDexFile* oat_dex_file : oat_file->GetOatDexFiles()) { 842 CHECK(oat_dex_file != NULL); 843 stats_.oat_dex_file_sizes.push_back(std::make_pair(oat_dex_file->GetDexFileLocation(), 844 oat_dex_file->FileSize())); 845 } 846 847 os << "OBJECTS:\n" << std::flush; 848 849 // Loop through all the image spaces and dump their objects. 850 gc::Heap* heap = Runtime::Current()->GetHeap(); 851 const std::vector<gc::space::ContinuousSpace*>& spaces = heap->GetContinuousSpaces(); 852 Thread* self = Thread::Current(); 853 { 854 { 855 WriterMutexLock mu(self, *Locks::heap_bitmap_lock_); 856 heap->FlushAllocStack(); 857 } 858 // Since FlushAllocStack() above resets the (active) allocation 859 // stack. Need to revoke the thread-local allocation stacks that 860 // point into it. 861 { 862 self->TransitionFromRunnableToSuspended(kNative); 863 ThreadList* thread_list = Runtime::Current()->GetThreadList(); 864 thread_list->SuspendAll(); 865 heap->RevokeAllThreadLocalAllocationStacks(self); 866 thread_list->ResumeAll(); 867 self->TransitionFromSuspendedToRunnable(); 868 } 869 } 870 { 871 std::ostream* saved_os = os_; 872 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 873 std::ostream indent_os(&indent_filter); 874 os_ = &indent_os; 875 ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_); 876 for (const auto& space : spaces) { 877 if (space->IsImageSpace()) { 878 gc::space::ImageSpace* image_space = space->AsImageSpace(); 879 image_space->GetLiveBitmap()->Walk(ImageDumper::Callback, this); 880 indent_os << "\n"; 881 } 882 } 883 // Dump the large objects separately. 884 heap->GetLargeObjectsSpace()->GetLiveBitmap()->Walk(ImageDumper::Callback, this); 885 indent_os << "\n"; 886 os_ = saved_os; 887 } 888 os << "STATS:\n" << std::flush; 889 std::unique_ptr<File> file(OS::OpenFileForReading(image_filename.c_str())); 890 if (file.get() == NULL) { 891 LOG(WARNING) << "Failed to find image in " << image_filename; 892 } 893 if (file.get() != NULL) { 894 stats_.file_bytes = file->GetLength(); 895 } 896 size_t header_bytes = sizeof(ImageHeader); 897 stats_.header_bytes = header_bytes; 898 size_t alignment_bytes = RoundUp(header_bytes, kObjectAlignment) - header_bytes; 899 stats_.alignment_bytes += alignment_bytes; 900 stats_.alignment_bytes += image_header_.GetImageBitmapOffset() - image_header_.GetImageSize(); 901 stats_.bitmap_bytes += image_header_.GetImageBitmapSize(); 902 stats_.Dump(os); 903 os << "\n"; 904 905 os << std::flush; 906 907 oat_dumper_->Dump(os); 908 } 909 910 private: 911 static void PrettyObjectValue(std::ostream& os, mirror::Class* type, mirror::Object* value) 912 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 913 CHECK(type != NULL); 914 if (value == NULL) { 915 os << StringPrintf("null %s\n", PrettyDescriptor(type).c_str()); 916 } else if (type->IsStringClass()) { 917 mirror::String* string = value->AsString(); 918 os << StringPrintf("%p String: %s\n", string, 919 PrintableString(string->ToModifiedUtf8()).c_str()); 920 } else if (type->IsClassClass()) { 921 mirror::Class* klass = value->AsClass(); 922 os << StringPrintf("%p Class: %s\n", klass, PrettyDescriptor(klass).c_str()); 923 } else if (type->IsArtFieldClass()) { 924 mirror::ArtField* field = value->AsArtField(); 925 os << StringPrintf("%p Field: %s\n", field, PrettyField(field).c_str()); 926 } else if (type->IsArtMethodClass()) { 927 mirror::ArtMethod* method = value->AsArtMethod(); 928 os << StringPrintf("%p Method: %s\n", method, PrettyMethod(method).c_str()); 929 } else { 930 os << StringPrintf("%p %s\n", value, PrettyDescriptor(type).c_str()); 931 } 932 } 933 934 static void PrintField(std::ostream& os, mirror::ArtField* field, mirror::Object* obj) 935 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 936 const char* descriptor = field->GetTypeDescriptor(); 937 os << StringPrintf("%s: ", field->GetName()); 938 if (descriptor[0] != 'L' && descriptor[0] != '[') { 939 StackHandleScope<1> hs(Thread::Current()); 940 FieldHelper fh(hs.NewHandle(field)); 941 mirror::Class* type = fh.GetType(); 942 if (type->IsPrimitiveLong()) { 943 os << StringPrintf("%" PRId64 " (0x%" PRIx64 ")\n", field->Get64(obj), field->Get64(obj)); 944 } else if (type->IsPrimitiveDouble()) { 945 os << StringPrintf("%f (%a)\n", field->GetDouble(obj), field->GetDouble(obj)); 946 } else if (type->IsPrimitiveFloat()) { 947 os << StringPrintf("%f (%a)\n", field->GetFloat(obj), field->GetFloat(obj)); 948 } else { 949 DCHECK(type->IsPrimitive()); 950 os << StringPrintf("%d (0x%x)\n", field->Get32(obj), field->Get32(obj)); 951 } 952 } else { 953 // Get the value, don't compute the type unless it is non-null as we don't want 954 // to cause class loading. 955 mirror::Object* value = field->GetObj(obj); 956 if (value == NULL) { 957 os << StringPrintf("null %s\n", PrettyDescriptor(descriptor).c_str()); 958 } else { 959 // Grab the field type without causing resolution. 960 StackHandleScope<1> hs(Thread::Current()); 961 FieldHelper fh(hs.NewHandle(field)); 962 mirror::Class* field_type = fh.GetType(false); 963 if (field_type != NULL) { 964 PrettyObjectValue(os, field_type, value); 965 } else { 966 os << StringPrintf("%p %s\n", value, PrettyDescriptor(descriptor).c_str()); 967 } 968 } 969 } 970 } 971 972 static void DumpFields(std::ostream& os, mirror::Object* obj, mirror::Class* klass) 973 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 974 mirror::Class* super = klass->GetSuperClass(); 975 if (super != NULL) { 976 DumpFields(os, obj, super); 977 } 978 mirror::ObjectArray<mirror::ArtField>* fields = klass->GetIFields(); 979 if (fields != NULL) { 980 for (int32_t i = 0; i < fields->GetLength(); i++) { 981 mirror::ArtField* field = fields->Get(i); 982 PrintField(os, field, obj); 983 } 984 } 985 } 986 987 bool InDumpSpace(const mirror::Object* object) { 988 return image_space_.Contains(object); 989 } 990 991 const void* GetQuickOatCodeBegin(mirror::ArtMethod* m) 992 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 993 const void* quick_code = m->GetEntryPointFromQuickCompiledCode(); 994 if (quick_code == Runtime::Current()->GetClassLinker()->GetQuickResolutionTrampoline()) { 995 quick_code = oat_dumper_->GetQuickOatCode(m); 996 } 997 if (oat_dumper_->GetInstructionSet() == kThumb2) { 998 quick_code = reinterpret_cast<void*>(reinterpret_cast<uintptr_t>(quick_code) & ~0x1); 999 } 1000 return quick_code; 1001 } 1002 1003 uint32_t GetQuickOatCodeSize(mirror::ArtMethod* m) 1004 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1005 const uint32_t* oat_code_begin = reinterpret_cast<const uint32_t*>(GetQuickOatCodeBegin(m)); 1006 if (oat_code_begin == nullptr) { 1007 return 0; 1008 } 1009 return oat_code_begin[-1]; 1010 } 1011 1012 const void* GetQuickOatCodeEnd(mirror::ArtMethod* m) 1013 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1014 const uint8_t* oat_code_begin = reinterpret_cast<const uint8_t*>(GetQuickOatCodeBegin(m)); 1015 if (oat_code_begin == NULL) { 1016 return NULL; 1017 } 1018 return oat_code_begin + GetQuickOatCodeSize(m); 1019 } 1020 1021 static void Callback(mirror::Object* obj, void* arg) 1022 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1023 DCHECK(obj != NULL); 1024 DCHECK(arg != NULL); 1025 ImageDumper* state = reinterpret_cast<ImageDumper*>(arg); 1026 if (!state->InDumpSpace(obj)) { 1027 return; 1028 } 1029 1030 size_t object_bytes = obj->SizeOf(); 1031 size_t alignment_bytes = RoundUp(object_bytes, kObjectAlignment) - object_bytes; 1032 state->stats_.object_bytes += object_bytes; 1033 state->stats_.alignment_bytes += alignment_bytes; 1034 1035 std::ostream& os = *state->os_; 1036 mirror::Class* obj_class = obj->GetClass(); 1037 if (obj_class->IsArrayClass()) { 1038 os << StringPrintf("%p: %s length:%d\n", obj, PrettyDescriptor(obj_class).c_str(), 1039 obj->AsArray()->GetLength()); 1040 } else if (obj->IsClass()) { 1041 mirror::Class* klass = obj->AsClass(); 1042 os << StringPrintf("%p: java.lang.Class \"%s\" (", obj, PrettyDescriptor(klass).c_str()) 1043 << klass->GetStatus() << ")\n"; 1044 } else if (obj->IsArtField()) { 1045 os << StringPrintf("%p: java.lang.reflect.ArtField %s\n", obj, 1046 PrettyField(obj->AsArtField()).c_str()); 1047 } else if (obj->IsArtMethod()) { 1048 os << StringPrintf("%p: java.lang.reflect.ArtMethod %s\n", obj, 1049 PrettyMethod(obj->AsArtMethod()).c_str()); 1050 } else if (obj_class->IsStringClass()) { 1051 os << StringPrintf("%p: java.lang.String %s\n", obj, 1052 PrintableString(obj->AsString()->ToModifiedUtf8()).c_str()); 1053 } else { 1054 os << StringPrintf("%p: %s\n", obj, PrettyDescriptor(obj_class).c_str()); 1055 } 1056 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 1057 std::ostream indent_os(&indent_filter); 1058 DumpFields(indent_os, obj, obj_class); 1059 if (obj->IsObjectArray()) { 1060 mirror::ObjectArray<mirror::Object>* obj_array = obj->AsObjectArray<mirror::Object>(); 1061 int32_t length = obj_array->GetLength(); 1062 for (int32_t i = 0; i < length; i++) { 1063 mirror::Object* value = obj_array->Get(i); 1064 size_t run = 0; 1065 for (int32_t j = i + 1; j < length; j++) { 1066 if (value == obj_array->Get(j)) { 1067 run++; 1068 } else { 1069 break; 1070 } 1071 } 1072 if (run == 0) { 1073 indent_os << StringPrintf("%d: ", i); 1074 } else { 1075 indent_os << StringPrintf("%d to %zd: ", i, i + run); 1076 i = i + run; 1077 } 1078 mirror::Class* value_class = 1079 (value == NULL) ? obj_class->GetComponentType() : value->GetClass(); 1080 PrettyObjectValue(indent_os, value_class, value); 1081 } 1082 } else if (obj->IsClass()) { 1083 mirror::ObjectArray<mirror::ArtField>* sfields = obj->AsClass()->GetSFields(); 1084 if (sfields != NULL) { 1085 indent_os << "STATICS:\n"; 1086 Indenter indent2_filter(indent_os.rdbuf(), kIndentChar, kIndentBy1Count); 1087 std::ostream indent2_os(&indent2_filter); 1088 for (int32_t i = 0; i < sfields->GetLength(); i++) { 1089 mirror::ArtField* field = sfields->Get(i); 1090 PrintField(indent2_os, field, field->GetDeclaringClass()); 1091 } 1092 } 1093 } else if (obj->IsArtMethod()) { 1094 mirror::ArtMethod* method = obj->AsArtMethod(); 1095 if (method->IsNative()) { 1096 // TODO: portable dumping. 1097 DCHECK(method->GetNativeGcMap() == nullptr) << PrettyMethod(method); 1098 DCHECK(method->GetMappingTable() == nullptr) << PrettyMethod(method); 1099 bool first_occurrence; 1100 const void* quick_oat_code = state->GetQuickOatCodeBegin(method); 1101 uint32_t quick_oat_code_size = state->GetQuickOatCodeSize(method); 1102 state->ComputeOatSize(quick_oat_code, &first_occurrence); 1103 if (first_occurrence) { 1104 state->stats_.native_to_managed_code_bytes += quick_oat_code_size; 1105 } 1106 if (quick_oat_code != method->GetEntryPointFromQuickCompiledCode()) { 1107 indent_os << StringPrintf("OAT CODE: %p\n", quick_oat_code); 1108 } 1109 } else if (method->IsAbstract() || method->IsCalleeSaveMethod() || 1110 method->IsResolutionMethod() || method->IsImtConflictMethod() || 1111 method->IsClassInitializer()) { 1112 DCHECK(method->GetNativeGcMap() == NULL) << PrettyMethod(method); 1113 DCHECK(method->GetMappingTable() == NULL) << PrettyMethod(method); 1114 } else { 1115 const DexFile::CodeItem* code_item = method->GetCodeItem(); 1116 size_t dex_instruction_bytes = code_item->insns_size_in_code_units_ * 2; 1117 state->stats_.dex_instruction_bytes += dex_instruction_bytes; 1118 1119 bool first_occurrence; 1120 size_t gc_map_bytes = state->ComputeOatSize(method->GetNativeGcMap(), &first_occurrence); 1121 if (first_occurrence) { 1122 state->stats_.gc_map_bytes += gc_map_bytes; 1123 } 1124 1125 size_t pc_mapping_table_bytes = 1126 state->ComputeOatSize(method->GetMappingTable(), &first_occurrence); 1127 if (first_occurrence) { 1128 state->stats_.pc_mapping_table_bytes += pc_mapping_table_bytes; 1129 } 1130 1131 size_t vmap_table_bytes = 1132 state->ComputeOatSize(method->GetVmapTable(), &first_occurrence); 1133 if (first_occurrence) { 1134 state->stats_.vmap_table_bytes += vmap_table_bytes; 1135 } 1136 1137 // TODO: portable dumping. 1138 const void* quick_oat_code_begin = state->GetQuickOatCodeBegin(method); 1139 const void* quick_oat_code_end = state->GetQuickOatCodeEnd(method); 1140 uint32_t quick_oat_code_size = state->GetQuickOatCodeSize(method); 1141 state->ComputeOatSize(quick_oat_code_begin, &first_occurrence); 1142 if (first_occurrence) { 1143 state->stats_.managed_code_bytes += quick_oat_code_size; 1144 if (method->IsConstructor()) { 1145 if (method->IsStatic()) { 1146 state->stats_.class_initializer_code_bytes += quick_oat_code_size; 1147 } else if (dex_instruction_bytes > kLargeConstructorDexBytes) { 1148 state->stats_.large_initializer_code_bytes += quick_oat_code_size; 1149 } 1150 } else if (dex_instruction_bytes > kLargeMethodDexBytes) { 1151 state->stats_.large_method_code_bytes += quick_oat_code_size; 1152 } 1153 } 1154 state->stats_.managed_code_bytes_ignoring_deduplication += quick_oat_code_size; 1155 1156 indent_os << StringPrintf("OAT CODE: %p-%p\n", quick_oat_code_begin, quick_oat_code_end); 1157 indent_os << StringPrintf("SIZE: Dex Instructions=%zd GC=%zd Mapping=%zd\n", 1158 dex_instruction_bytes, gc_map_bytes, pc_mapping_table_bytes); 1159 1160 size_t total_size = dex_instruction_bytes + gc_map_bytes + pc_mapping_table_bytes + 1161 vmap_table_bytes + quick_oat_code_size + object_bytes; 1162 1163 double expansion = 1164 static_cast<double>(quick_oat_code_size) / static_cast<double>(dex_instruction_bytes); 1165 state->stats_.ComputeOutliers(total_size, expansion, method); 1166 } 1167 } 1168 state->stats_.Update(obj_class->GetDescriptor().c_str(), object_bytes); 1169 } 1170 1171 std::set<const void*> already_seen_; 1172 // Compute the size of the given data within the oat file and whether this is the first time 1173 // this data has been requested 1174 size_t ComputeOatSize(const void* oat_data, bool* first_occurrence) { 1175 if (already_seen_.count(oat_data) == 0) { 1176 *first_occurrence = true; 1177 already_seen_.insert(oat_data); 1178 } else { 1179 *first_occurrence = false; 1180 } 1181 return oat_dumper_->ComputeSize(oat_data); 1182 } 1183 1184 public: 1185 struct Stats { 1186 size_t oat_file_bytes; 1187 size_t file_bytes; 1188 1189 size_t header_bytes; 1190 size_t object_bytes; 1191 size_t bitmap_bytes; 1192 size_t alignment_bytes; 1193 1194 size_t managed_code_bytes; 1195 size_t managed_code_bytes_ignoring_deduplication; 1196 size_t managed_to_native_code_bytes; 1197 size_t native_to_managed_code_bytes; 1198 size_t class_initializer_code_bytes; 1199 size_t large_initializer_code_bytes; 1200 size_t large_method_code_bytes; 1201 1202 size_t gc_map_bytes; 1203 size_t pc_mapping_table_bytes; 1204 size_t vmap_table_bytes; 1205 1206 size_t dex_instruction_bytes; 1207 1208 std::vector<mirror::ArtMethod*> method_outlier; 1209 std::vector<size_t> method_outlier_size; 1210 std::vector<double> method_outlier_expansion; 1211 std::vector<std::pair<std::string, size_t>> oat_dex_file_sizes; 1212 1213 explicit Stats() 1214 : oat_file_bytes(0), 1215 file_bytes(0), 1216 header_bytes(0), 1217 object_bytes(0), 1218 bitmap_bytes(0), 1219 alignment_bytes(0), 1220 managed_code_bytes(0), 1221 managed_code_bytes_ignoring_deduplication(0), 1222 managed_to_native_code_bytes(0), 1223 native_to_managed_code_bytes(0), 1224 class_initializer_code_bytes(0), 1225 large_initializer_code_bytes(0), 1226 large_method_code_bytes(0), 1227 gc_map_bytes(0), 1228 pc_mapping_table_bytes(0), 1229 vmap_table_bytes(0), 1230 dex_instruction_bytes(0) {} 1231 1232 struct SizeAndCount { 1233 SizeAndCount(size_t bytes, size_t count) : bytes(bytes), count(count) {} 1234 size_t bytes; 1235 size_t count; 1236 }; 1237 typedef SafeMap<std::string, SizeAndCount> SizeAndCountTable; 1238 SizeAndCountTable sizes_and_counts; 1239 1240 void Update(const char* descriptor, size_t object_bytes) { 1241 SizeAndCountTable::iterator it = sizes_and_counts.find(descriptor); 1242 if (it != sizes_and_counts.end()) { 1243 it->second.bytes += object_bytes; 1244 it->second.count += 1; 1245 } else { 1246 sizes_and_counts.Put(descriptor, SizeAndCount(object_bytes, 1)); 1247 } 1248 } 1249 1250 double PercentOfOatBytes(size_t size) { 1251 return (static_cast<double>(size) / static_cast<double>(oat_file_bytes)) * 100; 1252 } 1253 1254 double PercentOfFileBytes(size_t size) { 1255 return (static_cast<double>(size) / static_cast<double>(file_bytes)) * 100; 1256 } 1257 1258 double PercentOfObjectBytes(size_t size) { 1259 return (static_cast<double>(size) / static_cast<double>(object_bytes)) * 100; 1260 } 1261 1262 void ComputeOutliers(size_t total_size, double expansion, mirror::ArtMethod* method) { 1263 method_outlier_size.push_back(total_size); 1264 method_outlier_expansion.push_back(expansion); 1265 method_outlier.push_back(method); 1266 } 1267 1268 void DumpOutliers(std::ostream& os) 1269 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1270 size_t sum_of_sizes = 0; 1271 size_t sum_of_sizes_squared = 0; 1272 size_t sum_of_expansion = 0; 1273 size_t sum_of_expansion_squared = 0; 1274 size_t n = method_outlier_size.size(); 1275 for (size_t i = 0; i < n; i++) { 1276 size_t cur_size = method_outlier_size[i]; 1277 sum_of_sizes += cur_size; 1278 sum_of_sizes_squared += cur_size * cur_size; 1279 double cur_expansion = method_outlier_expansion[i]; 1280 sum_of_expansion += cur_expansion; 1281 sum_of_expansion_squared += cur_expansion * cur_expansion; 1282 } 1283 size_t size_mean = sum_of_sizes / n; 1284 size_t size_variance = (sum_of_sizes_squared - sum_of_sizes * size_mean) / (n - 1); 1285 double expansion_mean = sum_of_expansion / n; 1286 double expansion_variance = 1287 (sum_of_expansion_squared - sum_of_expansion * expansion_mean) / (n - 1); 1288 1289 // Dump methods whose size is a certain number of standard deviations from the mean 1290 size_t dumped_values = 0; 1291 size_t skipped_values = 0; 1292 for (size_t i = 100; i > 0; i--) { // i is the current number of standard deviations 1293 size_t cur_size_variance = i * i * size_variance; 1294 bool first = true; 1295 for (size_t j = 0; j < n; j++) { 1296 size_t cur_size = method_outlier_size[j]; 1297 if (cur_size > size_mean) { 1298 size_t cur_var = cur_size - size_mean; 1299 cur_var = cur_var * cur_var; 1300 if (cur_var > cur_size_variance) { 1301 if (dumped_values > 20) { 1302 if (i == 1) { 1303 skipped_values++; 1304 } else { 1305 i = 2; // jump to counting for 1 standard deviation 1306 break; 1307 } 1308 } else { 1309 if (first) { 1310 os << "\nBig methods (size > " << i << " standard deviations the norm):\n"; 1311 first = false; 1312 } 1313 os << PrettyMethod(method_outlier[j]) << " requires storage of " 1314 << PrettySize(cur_size) << "\n"; 1315 method_outlier_size[j] = 0; // don't consider this method again 1316 dumped_values++; 1317 } 1318 } 1319 } 1320 } 1321 } 1322 if (skipped_values > 0) { 1323 os << "... skipped " << skipped_values 1324 << " methods with size > 1 standard deviation from the norm\n"; 1325 } 1326 os << std::flush; 1327 1328 // Dump methods whose expansion is a certain number of standard deviations from the mean 1329 dumped_values = 0; 1330 skipped_values = 0; 1331 for (size_t i = 10; i > 0; i--) { // i is the current number of standard deviations 1332 double cur_expansion_variance = i * i * expansion_variance; 1333 bool first = true; 1334 for (size_t j = 0; j < n; j++) { 1335 double cur_expansion = method_outlier_expansion[j]; 1336 if (cur_expansion > expansion_mean) { 1337 size_t cur_var = cur_expansion - expansion_mean; 1338 cur_var = cur_var * cur_var; 1339 if (cur_var > cur_expansion_variance) { 1340 if (dumped_values > 20) { 1341 if (i == 1) { 1342 skipped_values++; 1343 } else { 1344 i = 2; // jump to counting for 1 standard deviation 1345 break; 1346 } 1347 } else { 1348 if (first) { 1349 os << "\nLarge expansion methods (size > " << i 1350 << " standard deviations the norm):\n"; 1351 first = false; 1352 } 1353 os << PrettyMethod(method_outlier[j]) << " expanded code by " 1354 << cur_expansion << "\n"; 1355 method_outlier_expansion[j] = 0.0; // don't consider this method again 1356 dumped_values++; 1357 } 1358 } 1359 } 1360 } 1361 } 1362 if (skipped_values > 0) { 1363 os << "... skipped " << skipped_values 1364 << " methods with expansion > 1 standard deviation from the norm\n"; 1365 } 1366 os << "\n" << std::flush; 1367 } 1368 1369 void Dump(std::ostream& os) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1370 { 1371 os << "art_file_bytes = " << PrettySize(file_bytes) << "\n\n" 1372 << "art_file_bytes = header_bytes + object_bytes + alignment_bytes\n"; 1373 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 1374 std::ostream indent_os(&indent_filter); 1375 indent_os << StringPrintf("header_bytes = %8zd (%2.0f%% of art file bytes)\n" 1376 "object_bytes = %8zd (%2.0f%% of art file bytes)\n" 1377 "bitmap_bytes = %8zd (%2.0f%% of art file bytes)\n" 1378 "alignment_bytes = %8zd (%2.0f%% of art file bytes)\n\n", 1379 header_bytes, PercentOfFileBytes(header_bytes), 1380 object_bytes, PercentOfFileBytes(object_bytes), 1381 bitmap_bytes, PercentOfFileBytes(bitmap_bytes), 1382 alignment_bytes, PercentOfFileBytes(alignment_bytes)) 1383 << std::flush; 1384 CHECK_EQ(file_bytes, bitmap_bytes + header_bytes + object_bytes + alignment_bytes); 1385 } 1386 1387 os << "object_bytes breakdown:\n"; 1388 size_t object_bytes_total = 0; 1389 for (const auto& sizes_and_count : sizes_and_counts) { 1390 const std::string& descriptor(sizes_and_count.first); 1391 double average = static_cast<double>(sizes_and_count.second.bytes) / 1392 static_cast<double>(sizes_and_count.second.count); 1393 double percent = PercentOfObjectBytes(sizes_and_count.second.bytes); 1394 os << StringPrintf("%32s %8zd bytes %6zd instances " 1395 "(%4.0f bytes/instance) %2.0f%% of object_bytes\n", 1396 descriptor.c_str(), sizes_and_count.second.bytes, 1397 sizes_and_count.second.count, average, percent); 1398 object_bytes_total += sizes_and_count.second.bytes; 1399 } 1400 os << "\n" << std::flush; 1401 CHECK_EQ(object_bytes, object_bytes_total); 1402 1403 os << StringPrintf("oat_file_bytes = %8zd\n" 1404 "managed_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1405 "managed_to_native_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1406 "native_to_managed_code_bytes = %8zd (%2.0f%% of oat file bytes)\n\n" 1407 "class_initializer_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1408 "large_initializer_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1409 "large_method_code_bytes = %8zd (%2.0f%% of oat file bytes)\n\n", 1410 oat_file_bytes, 1411 managed_code_bytes, 1412 PercentOfOatBytes(managed_code_bytes), 1413 managed_to_native_code_bytes, 1414 PercentOfOatBytes(managed_to_native_code_bytes), 1415 native_to_managed_code_bytes, 1416 PercentOfOatBytes(native_to_managed_code_bytes), 1417 class_initializer_code_bytes, 1418 PercentOfOatBytes(class_initializer_code_bytes), 1419 large_initializer_code_bytes, 1420 PercentOfOatBytes(large_initializer_code_bytes), 1421 large_method_code_bytes, 1422 PercentOfOatBytes(large_method_code_bytes)) 1423 << "DexFile sizes:\n"; 1424 for (const std::pair<std::string, size_t>& oat_dex_file_size : oat_dex_file_sizes) { 1425 os << StringPrintf("%s = %zd (%2.0f%% of oat file bytes)\n", 1426 oat_dex_file_size.first.c_str(), oat_dex_file_size.second, 1427 PercentOfOatBytes(oat_dex_file_size.second)); 1428 } 1429 1430 os << "\n" << StringPrintf("gc_map_bytes = %7zd (%2.0f%% of oat file bytes)\n" 1431 "pc_mapping_table_bytes = %7zd (%2.0f%% of oat file bytes)\n" 1432 "vmap_table_bytes = %7zd (%2.0f%% of oat file bytes)\n\n", 1433 gc_map_bytes, PercentOfOatBytes(gc_map_bytes), 1434 pc_mapping_table_bytes, PercentOfOatBytes(pc_mapping_table_bytes), 1435 vmap_table_bytes, PercentOfOatBytes(vmap_table_bytes)) 1436 << std::flush; 1437 1438 os << StringPrintf("dex_instruction_bytes = %zd\n", dex_instruction_bytes) 1439 << StringPrintf("managed_code_bytes expansion = %.2f (ignoring deduplication %.2f)\n\n", 1440 static_cast<double>(managed_code_bytes) / 1441 static_cast<double>(dex_instruction_bytes), 1442 static_cast<double>(managed_code_bytes_ignoring_deduplication) / 1443 static_cast<double>(dex_instruction_bytes)) 1444 << std::flush; 1445 1446 DumpOutliers(os); 1447 } 1448 } stats_; 1449 1450 private: 1451 enum { 1452 // Number of bytes for a constructor to be considered large. Based on the 1000 basic block 1453 // threshold, we assume 2 bytes per instruction and 2 instructions per block. 1454 kLargeConstructorDexBytes = 4000, 1455 // Number of bytes for a method to be considered large. Based on the 4000 basic block 1456 // threshold, we assume 2 bytes per instruction and 2 instructions per block. 1457 kLargeMethodDexBytes = 16000 1458 }; 1459 std::unique_ptr<OatDumper> oat_dumper_; 1460 std::ostream* os_; 1461 gc::space::ImageSpace& image_space_; 1462 const ImageHeader& image_header_; 1463 bool dump_raw_mapping_table_; 1464 bool dump_raw_gc_map_; 1465 1466 DISALLOW_COPY_AND_ASSIGN(ImageDumper); 1467}; 1468 1469static int oatdump(int argc, char** argv) { 1470 InitLogging(argv); 1471 1472 // Skip over argv[0]. 1473 argv++; 1474 argc--; 1475 1476 if (argc == 0) { 1477 fprintf(stderr, "No arguments specified\n"); 1478 usage(); 1479 } 1480 1481 const char* oat_filename = NULL; 1482 const char* image_location = NULL; 1483 const char* boot_image_location = NULL; 1484 InstructionSet instruction_set = kRuntimeISA; 1485 std::string elf_filename_prefix; 1486 std::ostream* os = &std::cout; 1487 std::unique_ptr<std::ofstream> out; 1488 bool dump_raw_mapping_table = false; 1489 bool dump_raw_gc_map = false; 1490 1491 for (int i = 0; i < argc; i++) { 1492 const StringPiece option(argv[i]); 1493 if (option.starts_with("--oat-file=")) { 1494 oat_filename = option.substr(strlen("--oat-file=")).data(); 1495 } else if (option.starts_with("--image=")) { 1496 image_location = option.substr(strlen("--image=")).data(); 1497 } else if (option.starts_with("--boot-image=")) { 1498 boot_image_location = option.substr(strlen("--boot-image=")).data(); 1499 } else if (option.starts_with("--instruction-set=")) { 1500 StringPiece instruction_set_str = option.substr(strlen("--instruction-set=")).data(); 1501 if (instruction_set_str == "arm") { 1502 instruction_set = kThumb2; 1503 } else if (instruction_set_str == "arm64") { 1504 instruction_set = kArm64; 1505 } else if (instruction_set_str == "mips") { 1506 instruction_set = kMips; 1507 } else if (instruction_set_str == "x86") { 1508 instruction_set = kX86; 1509 } else if (instruction_set_str == "x86_64") { 1510 instruction_set = kX86_64; 1511 } 1512 } else if (option.starts_with("--dump:")) { 1513 if (option == "--dump:raw_mapping_table") { 1514 dump_raw_mapping_table = true; 1515 } else if (option == "--dump:raw_gc_map") { 1516 dump_raw_gc_map = true; 1517 } else { 1518 fprintf(stderr, "Unknown argument %s\n", option.data()); 1519 usage(); 1520 } 1521 } else if (option.starts_with("--output=")) { 1522 const char* filename = option.substr(strlen("--output=")).data(); 1523 out.reset(new std::ofstream(filename)); 1524 if (!out->good()) { 1525 fprintf(stderr, "Failed to open output filename %s\n", filename); 1526 usage(); 1527 } 1528 os = out.get(); 1529 } else { 1530 fprintf(stderr, "Unknown argument %s\n", option.data()); 1531 usage(); 1532 } 1533 } 1534 1535 if (image_location == NULL && oat_filename == NULL) { 1536 fprintf(stderr, "Either --image or --oat must be specified\n"); 1537 return EXIT_FAILURE; 1538 } 1539 1540 if (image_location != NULL && oat_filename != NULL) { 1541 fprintf(stderr, "Either --image or --oat must be specified but not both\n"); 1542 return EXIT_FAILURE; 1543 } 1544 1545 if (oat_filename != NULL) { 1546 std::string error_msg; 1547 OatFile* oat_file = 1548 OatFile::Open(oat_filename, oat_filename, NULL, false, &error_msg); 1549 if (oat_file == NULL) { 1550 fprintf(stderr, "Failed to open oat file from '%s': %s\n", oat_filename, error_msg.c_str()); 1551 return EXIT_FAILURE; 1552 } 1553 OatDumper oat_dumper(*oat_file, dump_raw_mapping_table, dump_raw_gc_map); 1554 oat_dumper.Dump(*os); 1555 return EXIT_SUCCESS; 1556 } 1557 1558 RuntimeOptions options; 1559 std::string image_option; 1560 std::string oat_option; 1561 std::string boot_image_option; 1562 std::string boot_oat_option; 1563 1564 // We are more like a compiler than a run-time. We don't want to execute code. 1565 NoopCompilerCallbacks callbacks; 1566 options.push_back(std::make_pair("compilercallbacks", &callbacks)); 1567 1568 if (boot_image_location != NULL) { 1569 boot_image_option += "-Ximage:"; 1570 boot_image_option += boot_image_location; 1571 options.push_back(std::make_pair(boot_image_option.c_str(), reinterpret_cast<void*>(NULL))); 1572 } 1573 if (image_location != NULL) { 1574 image_option += "-Ximage:"; 1575 image_option += image_location; 1576 options.push_back(std::make_pair(image_option.c_str(), reinterpret_cast<void*>(NULL))); 1577 } 1578 options.push_back( 1579 std::make_pair("imageinstructionset", 1580 reinterpret_cast<const void*>(GetInstructionSetString(instruction_set)))); 1581 1582 if (!Runtime::Create(options, false)) { 1583 fprintf(stderr, "Failed to create runtime\n"); 1584 return EXIT_FAILURE; 1585 } 1586 std::unique_ptr<Runtime> runtime(Runtime::Current()); 1587 // Runtime::Create acquired the mutator_lock_ that is normally given away when we Runtime::Start, 1588 // give it away now and then switch to a more manageable ScopedObjectAccess. 1589 Thread::Current()->TransitionFromRunnableToSuspended(kNative); 1590 ScopedObjectAccess soa(Thread::Current()); 1591 gc::Heap* heap = Runtime::Current()->GetHeap(); 1592 gc::space::ImageSpace* image_space = heap->GetImageSpace(); 1593 CHECK(image_space != NULL); 1594 const ImageHeader& image_header = image_space->GetImageHeader(); 1595 if (!image_header.IsValid()) { 1596 fprintf(stderr, "Invalid image header %s\n", image_location); 1597 return EXIT_FAILURE; 1598 } 1599 ImageDumper image_dumper(os, *image_space, image_header, 1600 dump_raw_mapping_table, dump_raw_gc_map); 1601 image_dumper.Dump(); 1602 return EXIT_SUCCESS; 1603} 1604 1605} // namespace art 1606 1607int main(int argc, char** argv) { 1608 return art::oatdump(argc, argv); 1609} 1610