oatdump.cc revision b9beb2e2efb6a204a69ca660d478b45f851e8f09
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 "gc_map.h" 33#include "gc/space/image_space.h" 34#include "gc/space/large_object_space.h" 35#include "gc/space/space-inl.h" 36#include "image.h" 37#include "indenter.h" 38#include "mapping_table.h" 39#include "mirror/art_field-inl.h" 40#include "mirror/art_method-inl.h" 41#include "mirror/array-inl.h" 42#include "mirror/class-inl.h" 43#include "mirror/object-inl.h" 44#include "mirror/object_array-inl.h" 45#include "noop_compiler_callbacks.h" 46#include "oat.h" 47#include "oat_file-inl.h" 48#include "object_utils.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 " --output=<file> may be used to send the output to a file.\n" 80 " Example: --output=/tmp/oatdump.txt\n" 81 "\n"); 82 fprintf(stderr, 83 " --dump:[raw_mapping_table|raw_gc_map]\n" 84 " Example: --dump:raw_gc_map\n" 85 " Default: neither\n" 86 "\n"); 87 exit(EXIT_FAILURE); 88} 89 90const char* image_roots_descriptions_[] = { 91 "kResolutionMethod", 92 "kImtConflictMethod", 93 "kDefaultImt", 94 "kCalleeSaveMethod", 95 "kRefsOnlySaveMethod", 96 "kRefsAndArgsSaveMethod", 97 "kDexCaches", 98 "kClassRoots", 99}; 100 101class OatDumper { 102 public: 103 explicit OatDumper(const OatFile& oat_file, bool dump_raw_mapping_table, bool dump_raw_gc_map) 104 : oat_file_(oat_file), 105 oat_dex_files_(oat_file.GetOatDexFiles()), 106 dump_raw_mapping_table_(dump_raw_mapping_table), 107 dump_raw_gc_map_(dump_raw_gc_map), 108 disassembler_(Disassembler::Create(oat_file_.GetOatHeader().GetInstructionSet())) { 109 AddAllOffsets(); 110 } 111 112 void Dump(std::ostream& os) { 113 const OatHeader& oat_header = oat_file_.GetOatHeader(); 114 115 os << "MAGIC:\n"; 116 os << oat_header.GetMagic() << "\n\n"; 117 118 os << "CHECKSUM:\n"; 119 os << StringPrintf("0x%08x\n\n", oat_header.GetChecksum()); 120 121 os << "INSTRUCTION SET:\n"; 122 os << oat_header.GetInstructionSet() << "\n\n"; 123 124 os << "INSTRUCTION SET FEATURES:\n"; 125 os << oat_header.GetInstructionSetFeatures().GetFeatureString() << "\n\n"; 126 127 os << "DEX FILE COUNT:\n"; 128 os << oat_header.GetDexFileCount() << "\n\n"; 129 130#define DUMP_OAT_HEADER_OFFSET(label, offset) \ 131 os << label " OFFSET:\n"; \ 132 os << StringPrintf("0x%08x", oat_header.offset()); \ 133 if (oat_header.offset() != 0) { \ 134 os << StringPrintf(" (%p)", oat_file_.Begin() + oat_header.offset()); \ 135 } \ 136 os << StringPrintf("\n\n"); 137 138 DUMP_OAT_HEADER_OFFSET("EXECUTABLE", GetExecutableOffset); 139 DUMP_OAT_HEADER_OFFSET("INTERPRETER TO INTERPRETER BRIDGE", 140 GetInterpreterToInterpreterBridgeOffset); 141 DUMP_OAT_HEADER_OFFSET("INTERPRETER TO COMPILED CODE BRIDGE", 142 GetInterpreterToCompiledCodeBridgeOffset); 143 DUMP_OAT_HEADER_OFFSET("JNI DLSYM LOOKUP", 144 GetJniDlsymLookupOffset); 145 DUMP_OAT_HEADER_OFFSET("PORTABLE IMT CONFLICT TRAMPOLINE", 146 GetPortableImtConflictTrampolineOffset); 147 DUMP_OAT_HEADER_OFFSET("PORTABLE RESOLUTION TRAMPOLINE", 148 GetPortableResolutionTrampolineOffset); 149 DUMP_OAT_HEADER_OFFSET("PORTABLE TO INTERPRETER BRIDGE", 150 GetPortableToInterpreterBridgeOffset); 151 DUMP_OAT_HEADER_OFFSET("QUICK GENERIC JNI TRAMPOLINE", 152 GetQuickGenericJniTrampolineOffset); 153 DUMP_OAT_HEADER_OFFSET("QUICK IMT CONFLICT TRAMPOLINE", 154 GetQuickImtConflictTrampolineOffset); 155 DUMP_OAT_HEADER_OFFSET("QUICK RESOLUTION TRAMPOLINE", 156 GetQuickResolutionTrampolineOffset); 157 DUMP_OAT_HEADER_OFFSET("QUICK TO INTERPRETER BRIDGE", 158 GetQuickToInterpreterBridgeOffset); 159#undef DUMP_OAT_HEADER_OFFSET 160 161 os << "IMAGE FILE LOCATION OAT CHECKSUM:\n"; 162 os << StringPrintf("0x%08x\n\n", oat_header.GetImageFileLocationOatChecksum()); 163 164 os << "IMAGE FILE LOCATION OAT BEGIN:\n"; 165 os << StringPrintf("0x%08x\n\n", oat_header.GetImageFileLocationOatDataBegin()); 166 167 os << "IMAGE FILE LOCATION:\n"; 168 const std::string image_file_location(oat_header.GetImageFileLocation()); 169 os << image_file_location; 170 os << "\n\n"; 171 172 os << "BEGIN:\n"; 173 os << reinterpret_cast<const void*>(oat_file_.Begin()) << "\n\n"; 174 175 os << "END:\n"; 176 os << reinterpret_cast<const void*>(oat_file_.End()) << "\n\n"; 177 178 os << std::flush; 179 180 for (size_t i = 0; i < oat_dex_files_.size(); i++) { 181 const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i]; 182 CHECK(oat_dex_file != NULL); 183 DumpOatDexFile(os, *oat_dex_file); 184 } 185 } 186 187 size_t ComputeSize(const void* oat_data) { 188 if (reinterpret_cast<const byte*>(oat_data) < oat_file_.Begin() || 189 reinterpret_cast<const byte*>(oat_data) > oat_file_.End()) { 190 return 0; // Address not in oat file 191 } 192 uintptr_t begin_offset = reinterpret_cast<uintptr_t>(oat_data) - 193 reinterpret_cast<uintptr_t>(oat_file_.Begin()); 194 auto it = offsets_.upper_bound(begin_offset); 195 CHECK(it != offsets_.end()); 196 uintptr_t end_offset = *it; 197 return end_offset - begin_offset; 198 } 199 200 InstructionSet GetInstructionSet() { 201 return oat_file_.GetOatHeader().GetInstructionSet(); 202 } 203 204 const void* GetQuickOatCode(mirror::ArtMethod* m) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 205 MethodHelper mh(m); 206 for (size_t i = 0; i < oat_dex_files_.size(); i++) { 207 const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i]; 208 CHECK(oat_dex_file != nullptr); 209 std::string error_msg; 210 UniquePtr<const DexFile> dex_file(oat_dex_file->OpenDexFile(&error_msg)); 211 if (dex_file.get() == nullptr) { 212 LOG(WARNING) << "Failed to open dex file '" << oat_dex_file->GetDexFileLocation() 213 << "': " << error_msg; 214 } else { 215 const DexFile::ClassDef* class_def = 216 dex_file->FindClassDef(mh.GetDeclaringClassDescriptor()); 217 if (class_def != NULL) { 218 uint16_t class_def_index = dex_file->GetIndexForClassDef(*class_def); 219 const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(class_def_index); 220 size_t method_index = m->GetMethodIndex(); 221 return oat_class.GetOatMethod(method_index).GetQuickCode(); 222 } 223 } 224 } 225 return NULL; 226 } 227 228 private: 229 void AddAllOffsets() { 230 // We don't know the length of the code for each method, but we need to know where to stop 231 // when disassembling. What we do know is that a region of code will be followed by some other 232 // region, so if we keep a sorted sequence of the start of each region, we can infer the length 233 // of a piece of code by using upper_bound to find the start of the next region. 234 for (size_t i = 0; i < oat_dex_files_.size(); i++) { 235 const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i]; 236 CHECK(oat_dex_file != NULL); 237 std::string error_msg; 238 UniquePtr<const DexFile> dex_file(oat_dex_file->OpenDexFile(&error_msg)); 239 if (dex_file.get() == nullptr) { 240 LOG(WARNING) << "Failed to open dex file '" << oat_dex_file->GetDexFileLocation() 241 << "': " << error_msg; 242 continue; 243 } 244 offsets_.insert(reinterpret_cast<uintptr_t>(&dex_file->GetHeader())); 245 for (size_t class_def_index = 0; 246 class_def_index < dex_file->NumClassDefs(); 247 class_def_index++) { 248 const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index); 249 const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(class_def_index); 250 const byte* class_data = dex_file->GetClassData(class_def); 251 if (class_data != NULL) { 252 ClassDataItemIterator it(*dex_file, class_data); 253 SkipAllFields(it); 254 uint32_t class_method_index = 0; 255 while (it.HasNextDirectMethod()) { 256 AddOffsets(oat_class.GetOatMethod(class_method_index++)); 257 it.Next(); 258 } 259 while (it.HasNextVirtualMethod()) { 260 AddOffsets(oat_class.GetOatMethod(class_method_index++)); 261 it.Next(); 262 } 263 } 264 } 265 } 266 267 // If the last thing in the file is code for a method, there won't be an offset for the "next" 268 // thing. Instead of having a special case in the upper_bound code, let's just add an entry 269 // for the end of the file. 270 offsets_.insert(oat_file_.Size()); 271 } 272 273 void AddOffsets(const OatFile::OatMethod& oat_method) { 274 uint32_t code_offset = oat_method.GetCodeOffset(); 275 if (oat_file_.GetOatHeader().GetInstructionSet() == kThumb2) { 276 code_offset &= ~0x1; 277 } 278 offsets_.insert(code_offset); 279 offsets_.insert(oat_method.GetMappingTableOffset()); 280 offsets_.insert(oat_method.GetVmapTableOffset()); 281 offsets_.insert(oat_method.GetNativeGcMapOffset()); 282 } 283 284 void DumpOatDexFile(std::ostream& os, const OatFile::OatDexFile& oat_dex_file) { 285 os << "OAT DEX FILE:\n"; 286 os << StringPrintf("location: %s\n", oat_dex_file.GetDexFileLocation().c_str()); 287 os << StringPrintf("checksum: 0x%08x\n", oat_dex_file.GetDexFileLocationChecksum()); 288 289 // Create the verifier early. 290 291 std::string error_msg; 292 UniquePtr<const DexFile> dex_file(oat_dex_file.OpenDexFile(&error_msg)); 293 if (dex_file.get() == NULL) { 294 os << "NOT FOUND: " << error_msg << "\n\n"; 295 return; 296 } 297 for (size_t class_def_index = 0; 298 class_def_index < dex_file->NumClassDefs(); 299 class_def_index++) { 300 const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index); 301 const char* descriptor = dex_file->GetClassDescriptor(class_def); 302 const OatFile::OatClass oat_class = oat_dex_file.GetOatClass(class_def_index); 303 os << StringPrintf("%zd: %s (type_idx=%d)", class_def_index, descriptor, class_def.class_idx_) 304 << " (" << oat_class.GetStatus() << ")" 305 << " (" << oat_class.GetType() << ")\n"; 306 // TODO: include bitmap here if type is kOatClassSomeCompiled? 307 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 308 std::ostream indented_os(&indent_filter); 309 DumpOatClass(indented_os, oat_class, *(dex_file.get()), class_def); 310 } 311 312 os << std::flush; 313 } 314 315 static void SkipAllFields(ClassDataItemIterator& it) { 316 while (it.HasNextStaticField()) { 317 it.Next(); 318 } 319 while (it.HasNextInstanceField()) { 320 it.Next(); 321 } 322 } 323 324 void DumpOatClass(std::ostream& os, const OatFile::OatClass& oat_class, const DexFile& dex_file, 325 const DexFile::ClassDef& class_def) { 326 const byte* class_data = dex_file.GetClassData(class_def); 327 if (class_data == NULL) { // empty class such as a marker interface? 328 return; 329 } 330 ClassDataItemIterator it(dex_file, class_data); 331 SkipAllFields(it); 332 uint32_t class_method_idx = 0; 333 while (it.HasNextDirectMethod()) { 334 const OatFile::OatMethod oat_method = oat_class.GetOatMethod(class_method_idx); 335 DumpOatMethod(os, class_def, class_method_idx, oat_method, dex_file, 336 it.GetMemberIndex(), it.GetMethodCodeItem(), it.GetMemberAccessFlags()); 337 class_method_idx++; 338 it.Next(); 339 } 340 while (it.HasNextVirtualMethod()) { 341 const OatFile::OatMethod oat_method = oat_class.GetOatMethod(class_method_idx); 342 DumpOatMethod(os, class_def, class_method_idx, oat_method, dex_file, 343 it.GetMemberIndex(), it.GetMethodCodeItem(), it.GetMemberAccessFlags()); 344 class_method_idx++; 345 it.Next(); 346 } 347 DCHECK(!it.HasNext()); 348 os << std::flush; 349 } 350 351 void DumpOatMethod(std::ostream& os, const DexFile::ClassDef& class_def, 352 uint32_t class_method_index, 353 const OatFile::OatMethod& oat_method, const DexFile& dex_file, 354 uint32_t dex_method_idx, const DexFile::CodeItem* code_item, 355 uint32_t method_access_flags) { 356 os << StringPrintf("%d: %s (dex_method_idx=%d)\n", 357 class_method_index, PrettyMethod(dex_method_idx, dex_file, true).c_str(), 358 dex_method_idx); 359 Indenter indent1_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 360 std::ostream indent1_os(&indent1_filter); 361 { 362 indent1_os << "DEX CODE:\n"; 363 Indenter indent2_filter(indent1_os.rdbuf(), kIndentChar, kIndentBy1Count); 364 std::ostream indent2_os(&indent2_filter); 365 DumpDexCode(indent2_os, dex_file, code_item); 366 } 367 if (Runtime::Current() != NULL) { 368 indent1_os << "VERIFIER TYPE ANALYSIS:\n"; 369 Indenter indent2_filter(indent1_os.rdbuf(), kIndentChar, kIndentBy1Count); 370 std::ostream indent2_os(&indent2_filter); 371 DumpVerifier(indent2_os, dex_method_idx, &dex_file, class_def, code_item, 372 method_access_flags); 373 } 374 { 375 indent1_os << "OAT DATA:\n"; 376 Indenter indent2_filter(indent1_os.rdbuf(), kIndentChar, kIndentBy1Count); 377 std::ostream indent2_os(&indent2_filter); 378 379 indent2_os << StringPrintf("frame_size_in_bytes: %zd\n", oat_method.GetFrameSizeInBytes()); 380 indent2_os << StringPrintf("core_spill_mask: 0x%08x ", oat_method.GetCoreSpillMask()); 381 DumpSpillMask(indent2_os, oat_method.GetCoreSpillMask(), false); 382 indent2_os << StringPrintf("\nfp_spill_mask: 0x%08x ", oat_method.GetFpSpillMask()); 383 DumpSpillMask(indent2_os, oat_method.GetFpSpillMask(), true); 384 indent2_os << StringPrintf("\nvmap_table: %p (offset=0x%08x)\n", 385 oat_method.GetVmapTable(), oat_method.GetVmapTableOffset()); 386 DumpVmap(indent2_os, oat_method); 387 indent2_os << StringPrintf("mapping_table: %p (offset=0x%08x)\n", 388 oat_method.GetMappingTable(), oat_method.GetMappingTableOffset()); 389 if (dump_raw_mapping_table_) { 390 Indenter indent3_filter(indent2_os.rdbuf(), kIndentChar, kIndentBy1Count); 391 std::ostream indent3_os(&indent3_filter); 392 DumpMappingTable(indent3_os, oat_method); 393 } 394 indent2_os << StringPrintf("gc_map: %p (offset=0x%08x)\n", 395 oat_method.GetNativeGcMap(), oat_method.GetNativeGcMapOffset()); 396 if (dump_raw_gc_map_) { 397 Indenter indent3_filter(indent2_os.rdbuf(), kIndentChar, kIndentBy1Count); 398 std::ostream indent3_os(&indent3_filter); 399 DumpGcMap(indent3_os, oat_method, code_item); 400 } 401 } 402 { 403 const void* code = oat_method.GetQuickCode(); 404 uint32_t code_size = oat_method.GetQuickCodeSize(); 405 if (code == nullptr) { 406 code = oat_method.GetPortableCode(); 407 code_size = oat_method.GetPortableCodeSize(); 408 } 409 indent1_os << StringPrintf("CODE: %p (offset=0x%08x size=%d)%s\n", 410 code, 411 oat_method.GetCodeOffset(), 412 code_size, 413 code != nullptr ? "..." : ""); 414 Indenter indent2_filter(indent1_os.rdbuf(), kIndentChar, kIndentBy1Count); 415 std::ostream indent2_os(&indent2_filter); 416 417 Runtime* runtime = Runtime::Current(); 418 if (runtime != nullptr) { 419 ScopedObjectAccess soa(Thread::Current()); 420 SirtRef<mirror::DexCache> dex_cache( 421 soa.Self(), runtime->GetClassLinker()->FindDexCache(dex_file)); 422 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), nullptr); 423 verifier::MethodVerifier verifier(&dex_file, &dex_cache, &class_loader, &class_def, 424 code_item, dex_method_idx, nullptr, method_access_flags, 425 true, true); 426 verifier.Verify(); 427 DumpCode(indent2_os, &verifier, oat_method, code_item); 428 } else { 429 DumpCode(indent2_os, nullptr, oat_method, code_item); 430 } 431 } 432 } 433 434 void DumpSpillMask(std::ostream& os, uint32_t spill_mask, bool is_float) { 435 if (spill_mask == 0) { 436 return; 437 } 438 os << "("; 439 for (size_t i = 0; i < 32; i++) { 440 if ((spill_mask & (1 << i)) != 0) { 441 if (is_float) { 442 os << "fr" << i; 443 } else { 444 os << "r" << i; 445 } 446 spill_mask ^= 1 << i; // clear bit 447 if (spill_mask != 0) { 448 os << ", "; 449 } else { 450 break; 451 } 452 } 453 } 454 os << ")"; 455 } 456 457 void DumpVmap(std::ostream& os, const OatFile::OatMethod& oat_method) { 458 const uint8_t* raw_table = oat_method.GetVmapTable(); 459 if (raw_table != NULL) { 460 const VmapTable vmap_table(raw_table); 461 bool first = true; 462 bool processing_fp = false; 463 uint32_t spill_mask = oat_method.GetCoreSpillMask(); 464 for (size_t i = 0; i < vmap_table.Size(); i++) { 465 uint16_t dex_reg = vmap_table[i]; 466 uint32_t cpu_reg = vmap_table.ComputeRegister(spill_mask, i, 467 processing_fp ? kFloatVReg : kIntVReg); 468 os << (first ? "v" : ", v") << dex_reg; 469 if (!processing_fp) { 470 os << "/r" << cpu_reg; 471 } else { 472 os << "/fr" << cpu_reg; 473 } 474 first = false; 475 if (!processing_fp && dex_reg == 0xFFFF) { 476 processing_fp = true; 477 spill_mask = oat_method.GetFpSpillMask(); 478 } 479 } 480 os << "\n"; 481 } 482 } 483 484 void DescribeVReg(std::ostream& os, const OatFile::OatMethod& oat_method, 485 const DexFile::CodeItem* code_item, size_t reg, VRegKind kind) { 486 const uint8_t* raw_table = oat_method.GetVmapTable(); 487 if (raw_table != NULL) { 488 const VmapTable vmap_table(raw_table); 489 uint32_t vmap_offset; 490 if (vmap_table.IsInContext(reg, kind, &vmap_offset)) { 491 bool is_float = (kind == kFloatVReg) || (kind == kDoubleLoVReg) || (kind == kDoubleHiVReg); 492 uint32_t spill_mask = is_float ? oat_method.GetFpSpillMask() 493 : oat_method.GetCoreSpillMask(); 494 os << (is_float ? "fr" : "r") << vmap_table.ComputeRegister(spill_mask, vmap_offset, kind); 495 } else { 496 uint32_t offset = StackVisitor::GetVRegOffset(code_item, oat_method.GetCoreSpillMask(), 497 oat_method.GetFpSpillMask(), 498 oat_method.GetFrameSizeInBytes(), reg, 499 GetInstructionSet()); 500 os << "[sp + #" << offset << "]"; 501 } 502 } 503 } 504 505 void DumpGcMapRegisters(std::ostream& os, const OatFile::OatMethod& oat_method, 506 const DexFile::CodeItem* code_item, 507 size_t num_regs, const uint8_t* reg_bitmap) { 508 bool first = true; 509 for (size_t reg = 0; reg < num_regs; reg++) { 510 if (((reg_bitmap[reg / 8] >> (reg % 8)) & 0x01) != 0) { 511 if (first) { 512 os << " v" << reg << " ("; 513 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 514 os << ")"; 515 first = false; 516 } else { 517 os << ", v" << reg << " ("; 518 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 519 os << ")"; 520 } 521 } 522 } 523 if (first) { 524 os << "No registers in GC map\n"; 525 } else { 526 os << "\n"; 527 } 528 } 529 void DumpGcMap(std::ostream& os, const OatFile::OatMethod& oat_method, 530 const DexFile::CodeItem* code_item) { 531 const uint8_t* gc_map_raw = oat_method.GetNativeGcMap(); 532 if (gc_map_raw == nullptr) { 533 return; // No GC map. 534 } 535 const void* quick_code = oat_method.GetQuickCode(); 536 if (quick_code != nullptr) { 537 NativePcOffsetToReferenceMap map(gc_map_raw); 538 for (size_t entry = 0; entry < map.NumEntries(); entry++) { 539 const uint8_t* native_pc = reinterpret_cast<const uint8_t*>(quick_code) + 540 map.GetNativePcOffset(entry); 541 os << StringPrintf("%p", native_pc); 542 DumpGcMapRegisters(os, oat_method, code_item, map.RegWidth() * 8, map.GetBitMap(entry)); 543 } 544 } else { 545 const void* portable_code = oat_method.GetPortableCode(); 546 CHECK(portable_code != nullptr); 547 verifier::DexPcToReferenceMap map(gc_map_raw); 548 for (size_t entry = 0; entry < map.NumEntries(); entry++) { 549 uint32_t dex_pc = map.GetDexPc(entry); 550 os << StringPrintf("0x%08x", dex_pc); 551 DumpGcMapRegisters(os, oat_method, code_item, map.RegWidth() * 8, map.GetBitMap(entry)); 552 } 553 } 554 } 555 556 void DumpMappingTable(std::ostream& os, const OatFile::OatMethod& oat_method) { 557 const void* quick_code = oat_method.GetQuickCode(); 558 if (quick_code == nullptr) { 559 return; 560 } 561 MappingTable table(oat_method.GetMappingTable()); 562 if (table.TotalSize() != 0) { 563 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 564 std::ostream indent_os(&indent_filter); 565 if (table.PcToDexSize() != 0) { 566 typedef MappingTable::PcToDexIterator It; 567 os << "suspend point mappings {\n"; 568 for (It cur = table.PcToDexBegin(), end = table.PcToDexEnd(); cur != end; ++cur) { 569 indent_os << StringPrintf("0x%04x -> 0x%04x\n", cur.NativePcOffset(), cur.DexPc()); 570 } 571 os << "}\n"; 572 } 573 if (table.DexToPcSize() != 0) { 574 typedef MappingTable::DexToPcIterator It; 575 os << "catch entry mappings {\n"; 576 for (It cur = table.DexToPcBegin(), end = table.DexToPcEnd(); cur != end; ++cur) { 577 indent_os << StringPrintf("0x%04x -> 0x%04x\n", cur.NativePcOffset(), cur.DexPc()); 578 } 579 os << "}\n"; 580 } 581 } 582 } 583 584 uint32_t DumpMappingAtOffset(std::ostream& os, const OatFile::OatMethod& oat_method, 585 size_t offset, bool suspend_point_mapping) { 586 MappingTable table(oat_method.GetMappingTable()); 587 if (suspend_point_mapping && table.PcToDexSize() > 0) { 588 typedef MappingTable::PcToDexIterator It; 589 for (It cur = table.PcToDexBegin(), end = table.PcToDexEnd(); cur != end; ++cur) { 590 if (offset == cur.NativePcOffset()) { 591 os << StringPrintf("suspend point dex PC: 0x%04x\n", cur.DexPc()); 592 return cur.DexPc(); 593 } 594 } 595 } else if (!suspend_point_mapping && table.DexToPcSize() > 0) { 596 typedef MappingTable::DexToPcIterator It; 597 for (It cur = table.DexToPcBegin(), end = table.DexToPcEnd(); cur != end; ++cur) { 598 if (offset == cur.NativePcOffset()) { 599 os << StringPrintf("catch entry dex PC: 0x%04x\n", cur.DexPc()); 600 return cur.DexPc(); 601 } 602 } 603 } 604 return DexFile::kDexNoIndex; 605 } 606 607 void DumpGcMapAtNativePcOffset(std::ostream& os, const OatFile::OatMethod& oat_method, 608 const DexFile::CodeItem* code_item, size_t native_pc_offset) { 609 const uint8_t* gc_map_raw = oat_method.GetNativeGcMap(); 610 if (gc_map_raw != NULL) { 611 NativePcOffsetToReferenceMap map(gc_map_raw); 612 if (map.HasEntry(native_pc_offset)) { 613 size_t num_regs = map.RegWidth() * 8; 614 const uint8_t* reg_bitmap = map.FindBitMap(native_pc_offset); 615 bool first = true; 616 for (size_t reg = 0; reg < num_regs; reg++) { 617 if (((reg_bitmap[reg / 8] >> (reg % 8)) & 0x01) != 0) { 618 if (first) { 619 os << "GC map objects: v" << reg << " ("; 620 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 621 os << ")"; 622 first = false; 623 } else { 624 os << ", v" << reg << " ("; 625 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 626 os << ")"; 627 } 628 } 629 } 630 if (!first) { 631 os << "\n"; 632 } 633 } 634 } 635 } 636 637 void DumpVRegsAtDexPc(std::ostream& os, verifier::MethodVerifier* verifier, 638 const OatFile::OatMethod& oat_method, 639 const DexFile::CodeItem* code_item, uint32_t dex_pc) { 640 DCHECK(verifier != nullptr); 641 std::vector<int32_t> kinds = verifier->DescribeVRegs(dex_pc); 642 bool first = true; 643 for (size_t reg = 0; reg < code_item->registers_size_; reg++) { 644 VRegKind kind = static_cast<VRegKind>(kinds.at(reg * 2)); 645 if (kind != kUndefined) { 646 if (first) { 647 os << "VRegs: v"; 648 first = false; 649 } else { 650 os << ", v"; 651 } 652 os << reg << " ("; 653 switch (kind) { 654 case kImpreciseConstant: 655 os << "Imprecise Constant: " << kinds.at((reg * 2) + 1) << ", "; 656 DescribeVReg(os, oat_method, code_item, reg, kind); 657 break; 658 case kConstant: 659 os << "Constant: " << kinds.at((reg * 2) + 1); 660 break; 661 default: 662 DescribeVReg(os, oat_method, code_item, reg, kind); 663 break; 664 } 665 os << ")"; 666 } 667 } 668 if (!first) { 669 os << "\n"; 670 } 671 } 672 673 674 void DumpDexCode(std::ostream& os, const DexFile& dex_file, const DexFile::CodeItem* code_item) { 675 if (code_item != NULL) { 676 size_t i = 0; 677 while (i < code_item->insns_size_in_code_units_) { 678 const Instruction* instruction = Instruction::At(&code_item->insns_[i]); 679 os << StringPrintf("0x%04zx: %s\n", i, instruction->DumpString(&dex_file).c_str()); 680 i += instruction->SizeInCodeUnits(); 681 } 682 } 683 } 684 685 void DumpVerifier(std::ostream& os, uint32_t dex_method_idx, const DexFile* dex_file, 686 const DexFile::ClassDef& class_def, const DexFile::CodeItem* code_item, 687 uint32_t method_access_flags) { 688 if ((method_access_flags & kAccNative) == 0) { 689 ScopedObjectAccess soa(Thread::Current()); 690 SirtRef<mirror::DexCache> dex_cache( 691 soa.Self(), Runtime::Current()->GetClassLinker()->FindDexCache(*dex_file)); 692 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), nullptr); 693 verifier::MethodVerifier::VerifyMethodAndDump(os, dex_method_idx, dex_file, dex_cache, 694 class_loader, &class_def, code_item, NULL, 695 method_access_flags); 696 } 697 } 698 699 void DumpCode(std::ostream& os, verifier::MethodVerifier* verifier, 700 const OatFile::OatMethod& oat_method, const DexFile::CodeItem* code_item) { 701 const void* portable_code = oat_method.GetPortableCode(); 702 const void* quick_code = oat_method.GetQuickCode(); 703 704 size_t code_size = oat_method.GetQuickCodeSize(); 705 if ((code_size == 0) || ((portable_code == nullptr) && (quick_code == nullptr))) { 706 os << "NO CODE!\n"; 707 return; 708 } else if (quick_code != nullptr) { 709 const uint8_t* quick_native_pc = reinterpret_cast<const uint8_t*>(quick_code); 710 size_t offset = 0; 711 while (offset < code_size) { 712 DumpMappingAtOffset(os, oat_method, offset, false); 713 offset += disassembler_->Dump(os, quick_native_pc + offset); 714 uint32_t dex_pc = DumpMappingAtOffset(os, oat_method, offset, true); 715 if (dex_pc != DexFile::kDexNoIndex) { 716 DumpGcMapAtNativePcOffset(os, oat_method, code_item, offset); 717 if (verifier != nullptr) { 718 DumpVRegsAtDexPc(os, verifier, oat_method, code_item, dex_pc); 719 } 720 } 721 } 722 } else { 723 CHECK(portable_code != nullptr); 724 CHECK_EQ(code_size, 0U); // TODO: disassembly of portable is currently not supported. 725 } 726 } 727 728 const OatFile& oat_file_; 729 std::vector<const OatFile::OatDexFile*> oat_dex_files_; 730 bool dump_raw_mapping_table_; 731 bool dump_raw_gc_map_; 732 std::set<uintptr_t> offsets_; 733 UniquePtr<Disassembler> disassembler_; 734}; 735 736class ImageDumper { 737 public: 738 explicit ImageDumper(std::ostream* os, gc::space::ImageSpace& image_space, 739 const ImageHeader& image_header, bool dump_raw_mapping_table, 740 bool dump_raw_gc_map) 741 : os_(os), image_space_(image_space), image_header_(image_header), 742 dump_raw_mapping_table_(dump_raw_mapping_table), 743 dump_raw_gc_map_(dump_raw_gc_map) {} 744 745 void Dump() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 746 std::ostream& os = *os_; 747 os << "MAGIC: " << image_header_.GetMagic() << "\n\n"; 748 749 os << "IMAGE BEGIN: " << reinterpret_cast<void*>(image_header_.GetImageBegin()) << "\n\n"; 750 751 os << "IMAGE BITMAP OFFSET: " << reinterpret_cast<void*>(image_header_.GetImageBitmapOffset()) 752 << " SIZE: " << reinterpret_cast<void*>(image_header_.GetImageBitmapSize()) << "\n\n"; 753 754 os << "OAT CHECKSUM: " << StringPrintf("0x%08x\n\n", image_header_.GetOatChecksum()); 755 756 os << "OAT FILE BEGIN:" << reinterpret_cast<void*>(image_header_.GetOatFileBegin()) << "\n\n"; 757 758 os << "OAT DATA BEGIN:" << reinterpret_cast<void*>(image_header_.GetOatDataBegin()) << "\n\n"; 759 760 os << "OAT DATA END:" << reinterpret_cast<void*>(image_header_.GetOatDataEnd()) << "\n\n"; 761 762 os << "OAT FILE END:" << reinterpret_cast<void*>(image_header_.GetOatFileEnd()) << "\n\n"; 763 764 { 765 os << "ROOTS: " << reinterpret_cast<void*>(image_header_.GetImageRoots()) << "\n"; 766 Indenter indent1_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 767 std::ostream indent1_os(&indent1_filter); 768 CHECK_EQ(arraysize(image_roots_descriptions_), size_t(ImageHeader::kImageRootsMax)); 769 for (int i = 0; i < ImageHeader::kImageRootsMax; i++) { 770 ImageHeader::ImageRoot image_root = static_cast<ImageHeader::ImageRoot>(i); 771 const char* image_root_description = image_roots_descriptions_[i]; 772 mirror::Object* image_root_object = image_header_.GetImageRoot(image_root); 773 indent1_os << StringPrintf("%s: %p\n", image_root_description, image_root_object); 774 if (image_root_object->IsObjectArray()) { 775 Indenter indent2_filter(indent1_os.rdbuf(), kIndentChar, kIndentBy1Count); 776 std::ostream indent2_os(&indent2_filter); 777 mirror::ObjectArray<mirror::Object>* image_root_object_array 778 = image_root_object->AsObjectArray<mirror::Object>(); 779 for (int i = 0; i < image_root_object_array->GetLength(); i++) { 780 mirror::Object* value = image_root_object_array->Get(i); 781 size_t run = 0; 782 for (int32_t j = i + 1; j < image_root_object_array->GetLength(); j++) { 783 if (value == image_root_object_array->Get(j)) { 784 run++; 785 } else { 786 break; 787 } 788 } 789 if (run == 0) { 790 indent2_os << StringPrintf("%d: ", i); 791 } else { 792 indent2_os << StringPrintf("%d to %zd: ", i, i + run); 793 i = i + run; 794 } 795 if (value != NULL) { 796 PrettyObjectValue(indent2_os, value->GetClass(), value); 797 } else { 798 indent2_os << i << ": null\n"; 799 } 800 } 801 } 802 } 803 } 804 os << "\n"; 805 806 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 807 std::string image_filename = image_space_.GetImageFilename(); 808 std::string oat_location = ImageHeader::GetOatLocationFromImageLocation(image_filename); 809 os << "OAT LOCATION: " << oat_location; 810 os << "\n"; 811 std::string error_msg; 812 const OatFile* oat_file = class_linker->FindOatFileFromOatLocation(oat_location, &error_msg); 813 if (oat_file == NULL) { 814 os << "NOT FOUND: " << error_msg << "\n"; 815 return; 816 } 817 os << "\n"; 818 819 stats_.oat_file_bytes = oat_file->Size(); 820 821 oat_dumper_.reset(new OatDumper(*oat_file, dump_raw_mapping_table_, 822 dump_raw_gc_map_)); 823 824 for (const OatFile::OatDexFile* oat_dex_file : oat_file->GetOatDexFiles()) { 825 CHECK(oat_dex_file != NULL); 826 stats_.oat_dex_file_sizes.push_back(std::make_pair(oat_dex_file->GetDexFileLocation(), 827 oat_dex_file->FileSize())); 828 } 829 830 os << "OBJECTS:\n" << std::flush; 831 832 // Loop through all the image spaces and dump their objects. 833 gc::Heap* heap = Runtime::Current()->GetHeap(); 834 const std::vector<gc::space::ContinuousSpace*>& spaces = heap->GetContinuousSpaces(); 835 Thread* self = Thread::Current(); 836 { 837 { 838 WriterMutexLock mu(self, *Locks::heap_bitmap_lock_); 839 heap->FlushAllocStack(); 840 } 841 // Since FlushAllocStack() above resets the (active) allocation 842 // stack. Need to revoke the thread-local allocation stacks that 843 // point into it. 844 { 845 self->TransitionFromRunnableToSuspended(kNative); 846 ThreadList* thread_list = Runtime::Current()->GetThreadList(); 847 thread_list->SuspendAll(); 848 heap->RevokeAllThreadLocalAllocationStacks(self); 849 thread_list->ResumeAll(); 850 self->TransitionFromSuspendedToRunnable(); 851 } 852 } 853 { 854 std::ostream* saved_os = os_; 855 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 856 std::ostream indent_os(&indent_filter); 857 os_ = &indent_os; 858 ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_); 859 for (const auto& space : spaces) { 860 if (space->IsImageSpace()) { 861 gc::space::ImageSpace* image_space = space->AsImageSpace(); 862 image_space->GetLiveBitmap()->Walk(ImageDumper::Callback, this); 863 indent_os << "\n"; 864 } 865 } 866 // Dump the large objects separately. 867 heap->GetLargeObjectsSpace()->GetLiveBitmap()->Walk(ImageDumper::Callback, this); 868 indent_os << "\n"; 869 os_ = saved_os; 870 } 871 os << "STATS:\n" << std::flush; 872 UniquePtr<File> file(OS::OpenFileForReading(image_filename.c_str())); 873 if (file.get() == NULL) { 874 LOG(WARNING) << "Failed to find image in " << image_filename; 875 } 876 if (file.get() != NULL) { 877 stats_.file_bytes = file->GetLength(); 878 } 879 size_t header_bytes = sizeof(ImageHeader); 880 stats_.header_bytes = header_bytes; 881 size_t alignment_bytes = RoundUp(header_bytes, kObjectAlignment) - header_bytes; 882 stats_.alignment_bytes += alignment_bytes; 883 stats_.alignment_bytes += image_header_.GetImageBitmapOffset() - image_header_.GetImageSize(); 884 stats_.bitmap_bytes += image_header_.GetImageBitmapSize(); 885 stats_.Dump(os); 886 os << "\n"; 887 888 os << std::flush; 889 890 oat_dumper_->Dump(os); 891 } 892 893 private: 894 static void PrettyObjectValue(std::ostream& os, mirror::Class* type, mirror::Object* value) 895 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 896 CHECK(type != NULL); 897 if (value == NULL) { 898 os << StringPrintf("null %s\n", PrettyDescriptor(type).c_str()); 899 } else if (type->IsStringClass()) { 900 mirror::String* string = value->AsString(); 901 os << StringPrintf("%p String: %s\n", string, 902 PrintableString(string->ToModifiedUtf8()).c_str()); 903 } else if (type->IsClassClass()) { 904 mirror::Class* klass = value->AsClass(); 905 os << StringPrintf("%p Class: %s\n", klass, PrettyDescriptor(klass).c_str()); 906 } else if (type->IsArtFieldClass()) { 907 mirror::ArtField* field = value->AsArtField(); 908 os << StringPrintf("%p Field: %s\n", field, PrettyField(field).c_str()); 909 } else if (type->IsArtMethodClass()) { 910 mirror::ArtMethod* method = value->AsArtMethod(); 911 os << StringPrintf("%p Method: %s\n", method, PrettyMethod(method).c_str()); 912 } else { 913 os << StringPrintf("%p %s\n", value, PrettyDescriptor(type).c_str()); 914 } 915 } 916 917 static void PrintField(std::ostream& os, mirror::ArtField* field, mirror::Object* obj) 918 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 919 FieldHelper fh(field); 920 const char* descriptor = fh.GetTypeDescriptor(); 921 os << StringPrintf("%s: ", fh.GetName()); 922 if (descriptor[0] != 'L' && descriptor[0] != '[') { 923 mirror::Class* type = fh.GetType(); 924 if (type->IsPrimitiveLong()) { 925 os << StringPrintf("%" PRId64 " (0x%" PRIx64 ")\n", field->Get64(obj), field->Get64(obj)); 926 } else if (type->IsPrimitiveDouble()) { 927 os << StringPrintf("%f (%a)\n", field->GetDouble(obj), field->GetDouble(obj)); 928 } else if (type->IsPrimitiveFloat()) { 929 os << StringPrintf("%f (%a)\n", field->GetFloat(obj), field->GetFloat(obj)); 930 } else { 931 DCHECK(type->IsPrimitive()); 932 os << StringPrintf("%d (0x%x)\n", field->Get32(obj), field->Get32(obj)); 933 } 934 } else { 935 // Get the value, don't compute the type unless it is non-null as we don't want 936 // to cause class loading. 937 mirror::Object* value = field->GetObj(obj); 938 if (value == NULL) { 939 os << StringPrintf("null %s\n", PrettyDescriptor(descriptor).c_str()); 940 } else { 941 // Grab the field type without causing resolution. 942 mirror::Class* field_type = fh.GetType(false); 943 if (field_type != NULL) { 944 PrettyObjectValue(os, field_type, value); 945 } else { 946 os << StringPrintf("%p %s\n", value, PrettyDescriptor(descriptor).c_str()); 947 } 948 } 949 } 950 } 951 952 static void DumpFields(std::ostream& os, mirror::Object* obj, mirror::Class* klass) 953 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 954 mirror::Class* super = klass->GetSuperClass(); 955 if (super != NULL) { 956 DumpFields(os, obj, super); 957 } 958 mirror::ObjectArray<mirror::ArtField>* fields = klass->GetIFields(); 959 if (fields != NULL) { 960 for (int32_t i = 0; i < fields->GetLength(); i++) { 961 mirror::ArtField* field = fields->Get(i); 962 PrintField(os, field, obj); 963 } 964 } 965 } 966 967 bool InDumpSpace(const mirror::Object* object) { 968 return image_space_.Contains(object); 969 } 970 971 const void* GetQuickOatCodeBegin(mirror::ArtMethod* m) 972 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 973 const void* quick_code = m->GetEntryPointFromQuickCompiledCode(); 974 if (quick_code == GetQuickResolutionTrampoline(Runtime::Current()->GetClassLinker())) { 975 quick_code = oat_dumper_->GetQuickOatCode(m); 976 } 977 if (oat_dumper_->GetInstructionSet() == kThumb2) { 978 quick_code = reinterpret_cast<void*>(reinterpret_cast<uintptr_t>(quick_code) & ~0x1); 979 } 980 return quick_code; 981 } 982 983 uint32_t GetQuickOatCodeSize(mirror::ArtMethod* m) 984 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 985 const uint32_t* oat_code_begin = reinterpret_cast<const uint32_t*>(GetQuickOatCodeBegin(m)); 986 if (oat_code_begin == nullptr) { 987 return 0; 988 } 989 return oat_code_begin[-1]; 990 } 991 992 const void* GetQuickOatCodeEnd(mirror::ArtMethod* m) 993 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 994 const uint8_t* oat_code_begin = reinterpret_cast<const uint8_t*>(GetQuickOatCodeBegin(m)); 995 if (oat_code_begin == NULL) { 996 return NULL; 997 } 998 return oat_code_begin + GetQuickOatCodeSize(m); 999 } 1000 1001 static void Callback(mirror::Object* obj, void* arg) 1002 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1003 DCHECK(obj != NULL); 1004 DCHECK(arg != NULL); 1005 ImageDumper* state = reinterpret_cast<ImageDumper*>(arg); 1006 if (!state->InDumpSpace(obj)) { 1007 return; 1008 } 1009 1010 size_t object_bytes = obj->SizeOf(); 1011 size_t alignment_bytes = RoundUp(object_bytes, kObjectAlignment) - object_bytes; 1012 state->stats_.object_bytes += object_bytes; 1013 state->stats_.alignment_bytes += alignment_bytes; 1014 1015 std::ostream& os = *state->os_; 1016 mirror::Class* obj_class = obj->GetClass(); 1017 if (obj_class->IsArrayClass()) { 1018 os << StringPrintf("%p: %s length:%d\n", obj, PrettyDescriptor(obj_class).c_str(), 1019 obj->AsArray()->GetLength()); 1020 } else if (obj->IsClass()) { 1021 mirror::Class* klass = obj->AsClass(); 1022 os << StringPrintf("%p: java.lang.Class \"%s\" (", obj, PrettyDescriptor(klass).c_str()) 1023 << klass->GetStatus() << ")\n"; 1024 } else if (obj->IsArtField()) { 1025 os << StringPrintf("%p: java.lang.reflect.ArtField %s\n", obj, 1026 PrettyField(obj->AsArtField()).c_str()); 1027 } else if (obj->IsArtMethod()) { 1028 os << StringPrintf("%p: java.lang.reflect.ArtMethod %s\n", obj, 1029 PrettyMethod(obj->AsArtMethod()).c_str()); 1030 } else if (obj_class->IsStringClass()) { 1031 os << StringPrintf("%p: java.lang.String %s\n", obj, 1032 PrintableString(obj->AsString()->ToModifiedUtf8()).c_str()); 1033 } else { 1034 os << StringPrintf("%p: %s\n", obj, PrettyDescriptor(obj_class).c_str()); 1035 } 1036 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 1037 std::ostream indent_os(&indent_filter); 1038 DumpFields(indent_os, obj, obj_class); 1039 if (obj->IsObjectArray()) { 1040 mirror::ObjectArray<mirror::Object>* obj_array = obj->AsObjectArray<mirror::Object>(); 1041 int32_t length = obj_array->GetLength(); 1042 for (int32_t i = 0; i < length; i++) { 1043 mirror::Object* value = obj_array->Get(i); 1044 size_t run = 0; 1045 for (int32_t j = i + 1; j < length; j++) { 1046 if (value == obj_array->Get(j)) { 1047 run++; 1048 } else { 1049 break; 1050 } 1051 } 1052 if (run == 0) { 1053 indent_os << StringPrintf("%d: ", i); 1054 } else { 1055 indent_os << StringPrintf("%d to %zd: ", i, i + run); 1056 i = i + run; 1057 } 1058 mirror::Class* value_class = 1059 (value == NULL) ? obj_class->GetComponentType() : value->GetClass(); 1060 PrettyObjectValue(indent_os, value_class, value); 1061 } 1062 } else if (obj->IsClass()) { 1063 mirror::ObjectArray<mirror::ArtField>* sfields = obj->AsClass()->GetSFields(); 1064 if (sfields != NULL) { 1065 indent_os << "STATICS:\n"; 1066 Indenter indent2_filter(indent_os.rdbuf(), kIndentChar, kIndentBy1Count); 1067 std::ostream indent2_os(&indent2_filter); 1068 for (int32_t i = 0; i < sfields->GetLength(); i++) { 1069 mirror::ArtField* field = sfields->Get(i); 1070 PrintField(indent2_os, field, field->GetDeclaringClass()); 1071 } 1072 } 1073 } else if (obj->IsArtMethod()) { 1074 mirror::ArtMethod* method = obj->AsArtMethod(); 1075 if (method->IsNative()) { 1076 // TODO: portable dumping. 1077 DCHECK(method->GetNativeGcMap() == nullptr) << PrettyMethod(method); 1078 DCHECK(method->GetMappingTable() == nullptr) << PrettyMethod(method); 1079 bool first_occurrence; 1080 const void* quick_oat_code = state->GetQuickOatCodeBegin(method); 1081 uint32_t quick_oat_code_size = state->GetQuickOatCodeSize(method); 1082 state->ComputeOatSize(quick_oat_code, &first_occurrence); 1083 if (first_occurrence) { 1084 state->stats_.native_to_managed_code_bytes += quick_oat_code_size; 1085 } 1086 if (quick_oat_code != method->GetEntryPointFromQuickCompiledCode()) { 1087 indent_os << StringPrintf("OAT CODE: %p\n", quick_oat_code); 1088 } 1089 } else if (method->IsAbstract() || method->IsCalleeSaveMethod() || 1090 method->IsResolutionMethod() || method->IsImtConflictMethod() || 1091 MethodHelper(method).IsClassInitializer()) { 1092 DCHECK(method->GetNativeGcMap() == NULL) << PrettyMethod(method); 1093 DCHECK(method->GetMappingTable() == NULL) << PrettyMethod(method); 1094 } else { 1095 const DexFile::CodeItem* code_item = MethodHelper(method).GetCodeItem(); 1096 size_t dex_instruction_bytes = code_item->insns_size_in_code_units_ * 2; 1097 state->stats_.dex_instruction_bytes += dex_instruction_bytes; 1098 1099 bool first_occurrence; 1100 size_t gc_map_bytes = state->ComputeOatSize(method->GetNativeGcMap(), &first_occurrence); 1101 if (first_occurrence) { 1102 state->stats_.gc_map_bytes += gc_map_bytes; 1103 } 1104 1105 size_t pc_mapping_table_bytes = 1106 state->ComputeOatSize(method->GetMappingTable(), &first_occurrence); 1107 if (first_occurrence) { 1108 state->stats_.pc_mapping_table_bytes += pc_mapping_table_bytes; 1109 } 1110 1111 size_t vmap_table_bytes = 1112 state->ComputeOatSize(method->GetVmapTable(), &first_occurrence); 1113 if (first_occurrence) { 1114 state->stats_.vmap_table_bytes += vmap_table_bytes; 1115 } 1116 1117 // TODO: portable dumping. 1118 const void* quick_oat_code_begin = state->GetQuickOatCodeBegin(method); 1119 const void* quick_oat_code_end = state->GetQuickOatCodeEnd(method); 1120 uint32_t quick_oat_code_size = state->GetQuickOatCodeSize(method); 1121 state->ComputeOatSize(quick_oat_code_begin, &first_occurrence); 1122 if (first_occurrence) { 1123 state->stats_.managed_code_bytes += quick_oat_code_size; 1124 if (method->IsConstructor()) { 1125 if (method->IsStatic()) { 1126 state->stats_.class_initializer_code_bytes += quick_oat_code_size; 1127 } else if (dex_instruction_bytes > kLargeConstructorDexBytes) { 1128 state->stats_.large_initializer_code_bytes += quick_oat_code_size; 1129 } 1130 } else if (dex_instruction_bytes > kLargeMethodDexBytes) { 1131 state->stats_.large_method_code_bytes += quick_oat_code_size; 1132 } 1133 } 1134 state->stats_.managed_code_bytes_ignoring_deduplication += quick_oat_code_size; 1135 1136 indent_os << StringPrintf("OAT CODE: %p-%p\n", quick_oat_code_begin, quick_oat_code_end); 1137 indent_os << StringPrintf("SIZE: Dex Instructions=%zd GC=%zd Mapping=%zd\n", 1138 dex_instruction_bytes, gc_map_bytes, pc_mapping_table_bytes); 1139 1140 size_t total_size = dex_instruction_bytes + gc_map_bytes + pc_mapping_table_bytes + 1141 vmap_table_bytes + quick_oat_code_size + object_bytes; 1142 1143 double expansion = 1144 static_cast<double>(quick_oat_code_size) / static_cast<double>(dex_instruction_bytes); 1145 state->stats_.ComputeOutliers(total_size, expansion, method); 1146 } 1147 } 1148 state->stats_.Update(ClassHelper(obj_class).GetDescriptor(), object_bytes); 1149 } 1150 1151 std::set<const void*> already_seen_; 1152 // Compute the size of the given data within the oat file and whether this is the first time 1153 // this data has been requested 1154 size_t ComputeOatSize(const void* oat_data, bool* first_occurrence) { 1155 if (already_seen_.count(oat_data) == 0) { 1156 *first_occurrence = true; 1157 already_seen_.insert(oat_data); 1158 } else { 1159 *first_occurrence = false; 1160 } 1161 return oat_dumper_->ComputeSize(oat_data); 1162 } 1163 1164 public: 1165 struct Stats { 1166 size_t oat_file_bytes; 1167 size_t file_bytes; 1168 1169 size_t header_bytes; 1170 size_t object_bytes; 1171 size_t bitmap_bytes; 1172 size_t alignment_bytes; 1173 1174 size_t managed_code_bytes; 1175 size_t managed_code_bytes_ignoring_deduplication; 1176 size_t managed_to_native_code_bytes; 1177 size_t native_to_managed_code_bytes; 1178 size_t class_initializer_code_bytes; 1179 size_t large_initializer_code_bytes; 1180 size_t large_method_code_bytes; 1181 1182 size_t gc_map_bytes; 1183 size_t pc_mapping_table_bytes; 1184 size_t vmap_table_bytes; 1185 1186 size_t dex_instruction_bytes; 1187 1188 std::vector<mirror::ArtMethod*> method_outlier; 1189 std::vector<size_t> method_outlier_size; 1190 std::vector<double> method_outlier_expansion; 1191 std::vector<std::pair<std::string, size_t> > oat_dex_file_sizes; 1192 1193 explicit Stats() 1194 : oat_file_bytes(0), 1195 file_bytes(0), 1196 header_bytes(0), 1197 object_bytes(0), 1198 bitmap_bytes(0), 1199 alignment_bytes(0), 1200 managed_code_bytes(0), 1201 managed_code_bytes_ignoring_deduplication(0), 1202 managed_to_native_code_bytes(0), 1203 native_to_managed_code_bytes(0), 1204 class_initializer_code_bytes(0), 1205 large_initializer_code_bytes(0), 1206 large_method_code_bytes(0), 1207 gc_map_bytes(0), 1208 pc_mapping_table_bytes(0), 1209 vmap_table_bytes(0), 1210 dex_instruction_bytes(0) {} 1211 1212 struct SizeAndCount { 1213 SizeAndCount(size_t bytes, size_t count) : bytes(bytes), count(count) {} 1214 size_t bytes; 1215 size_t count; 1216 }; 1217 typedef SafeMap<std::string, SizeAndCount> SizeAndCountTable; 1218 SizeAndCountTable sizes_and_counts; 1219 1220 void Update(const char* descriptor, size_t object_bytes) { 1221 SizeAndCountTable::iterator it = sizes_and_counts.find(descriptor); 1222 if (it != sizes_and_counts.end()) { 1223 it->second.bytes += object_bytes; 1224 it->second.count += 1; 1225 } else { 1226 sizes_and_counts.Put(descriptor, SizeAndCount(object_bytes, 1)); 1227 } 1228 } 1229 1230 double PercentOfOatBytes(size_t size) { 1231 return (static_cast<double>(size) / static_cast<double>(oat_file_bytes)) * 100; 1232 } 1233 1234 double PercentOfFileBytes(size_t size) { 1235 return (static_cast<double>(size) / static_cast<double>(file_bytes)) * 100; 1236 } 1237 1238 double PercentOfObjectBytes(size_t size) { 1239 return (static_cast<double>(size) / static_cast<double>(object_bytes)) * 100; 1240 } 1241 1242 void ComputeOutliers(size_t total_size, double expansion, mirror::ArtMethod* method) { 1243 method_outlier_size.push_back(total_size); 1244 method_outlier_expansion.push_back(expansion); 1245 method_outlier.push_back(method); 1246 } 1247 1248 void DumpOutliers(std::ostream& os) 1249 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1250 size_t sum_of_sizes = 0; 1251 size_t sum_of_sizes_squared = 0; 1252 size_t sum_of_expansion = 0; 1253 size_t sum_of_expansion_squared = 0; 1254 size_t n = method_outlier_size.size(); 1255 for (size_t i = 0; i < n; i++) { 1256 size_t cur_size = method_outlier_size[i]; 1257 sum_of_sizes += cur_size; 1258 sum_of_sizes_squared += cur_size * cur_size; 1259 double cur_expansion = method_outlier_expansion[i]; 1260 sum_of_expansion += cur_expansion; 1261 sum_of_expansion_squared += cur_expansion * cur_expansion; 1262 } 1263 size_t size_mean = sum_of_sizes / n; 1264 size_t size_variance = (sum_of_sizes_squared - sum_of_sizes * size_mean) / (n - 1); 1265 double expansion_mean = sum_of_expansion / n; 1266 double expansion_variance = 1267 (sum_of_expansion_squared - sum_of_expansion * expansion_mean) / (n - 1); 1268 1269 // Dump methods whose size is a certain number of standard deviations from the mean 1270 size_t dumped_values = 0; 1271 size_t skipped_values = 0; 1272 for (size_t i = 100; i > 0; i--) { // i is the current number of standard deviations 1273 size_t cur_size_variance = i * i * size_variance; 1274 bool first = true; 1275 for (size_t j = 0; j < n; j++) { 1276 size_t cur_size = method_outlier_size[j]; 1277 if (cur_size > size_mean) { 1278 size_t cur_var = cur_size - size_mean; 1279 cur_var = cur_var * cur_var; 1280 if (cur_var > cur_size_variance) { 1281 if (dumped_values > 20) { 1282 if (i == 1) { 1283 skipped_values++; 1284 } else { 1285 i = 2; // jump to counting for 1 standard deviation 1286 break; 1287 } 1288 } else { 1289 if (first) { 1290 os << "\nBig methods (size > " << i << " standard deviations the norm):\n"; 1291 first = false; 1292 } 1293 os << PrettyMethod(method_outlier[j]) << " requires storage of " 1294 << PrettySize(cur_size) << "\n"; 1295 method_outlier_size[j] = 0; // don't consider this method again 1296 dumped_values++; 1297 } 1298 } 1299 } 1300 } 1301 } 1302 if (skipped_values > 0) { 1303 os << "... skipped " << skipped_values 1304 << " methods with size > 1 standard deviation from the norm\n"; 1305 } 1306 os << std::flush; 1307 1308 // Dump methods whose expansion is a certain number of standard deviations from the mean 1309 dumped_values = 0; 1310 skipped_values = 0; 1311 for (size_t i = 10; i > 0; i--) { // i is the current number of standard deviations 1312 double cur_expansion_variance = i * i * expansion_variance; 1313 bool first = true; 1314 for (size_t j = 0; j < n; j++) { 1315 double cur_expansion = method_outlier_expansion[j]; 1316 if (cur_expansion > expansion_mean) { 1317 size_t cur_var = cur_expansion - expansion_mean; 1318 cur_var = cur_var * cur_var; 1319 if (cur_var > cur_expansion_variance) { 1320 if (dumped_values > 20) { 1321 if (i == 1) { 1322 skipped_values++; 1323 } else { 1324 i = 2; // jump to counting for 1 standard deviation 1325 break; 1326 } 1327 } else { 1328 if (first) { 1329 os << "\nLarge expansion methods (size > " << i 1330 << " standard deviations the norm):\n"; 1331 first = false; 1332 } 1333 os << PrettyMethod(method_outlier[j]) << " expanded code by " 1334 << cur_expansion << "\n"; 1335 method_outlier_expansion[j] = 0.0; // don't consider this method again 1336 dumped_values++; 1337 } 1338 } 1339 } 1340 } 1341 } 1342 if (skipped_values > 0) { 1343 os << "... skipped " << skipped_values 1344 << " methods with expansion > 1 standard deviation from the norm\n"; 1345 } 1346 os << "\n" << std::flush; 1347 } 1348 1349 void Dump(std::ostream& os) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1350 { 1351 os << "art_file_bytes = " << PrettySize(file_bytes) << "\n\n" 1352 << "art_file_bytes = header_bytes + object_bytes + alignment_bytes\n"; 1353 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 1354 std::ostream indent_os(&indent_filter); 1355 indent_os << StringPrintf("header_bytes = %8zd (%2.0f%% of art file bytes)\n" 1356 "object_bytes = %8zd (%2.0f%% of art file bytes)\n" 1357 "bitmap_bytes = %8zd (%2.0f%% of art file bytes)\n" 1358 "alignment_bytes = %8zd (%2.0f%% of art file bytes)\n\n", 1359 header_bytes, PercentOfFileBytes(header_bytes), 1360 object_bytes, PercentOfFileBytes(object_bytes), 1361 bitmap_bytes, PercentOfFileBytes(bitmap_bytes), 1362 alignment_bytes, PercentOfFileBytes(alignment_bytes)) 1363 << std::flush; 1364 CHECK_EQ(file_bytes, bitmap_bytes + header_bytes + object_bytes + alignment_bytes); 1365 } 1366 1367 os << "object_bytes breakdown:\n"; 1368 size_t object_bytes_total = 0; 1369 for (const auto& sizes_and_count : sizes_and_counts) { 1370 const std::string& descriptor(sizes_and_count.first); 1371 double average = static_cast<double>(sizes_and_count.second.bytes) / 1372 static_cast<double>(sizes_and_count.second.count); 1373 double percent = PercentOfObjectBytes(sizes_and_count.second.bytes); 1374 os << StringPrintf("%32s %8zd bytes %6zd instances " 1375 "(%4.0f bytes/instance) %2.0f%% of object_bytes\n", 1376 descriptor.c_str(), sizes_and_count.second.bytes, 1377 sizes_and_count.second.count, average, percent); 1378 object_bytes_total += sizes_and_count.second.bytes; 1379 } 1380 os << "\n" << std::flush; 1381 CHECK_EQ(object_bytes, object_bytes_total); 1382 1383 os << StringPrintf("oat_file_bytes = %8zd\n" 1384 "managed_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1385 "managed_to_native_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1386 "native_to_managed_code_bytes = %8zd (%2.0f%% of oat file bytes)\n\n" 1387 "class_initializer_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1388 "large_initializer_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1389 "large_method_code_bytes = %8zd (%2.0f%% of oat file bytes)\n\n", 1390 oat_file_bytes, 1391 managed_code_bytes, 1392 PercentOfOatBytes(managed_code_bytes), 1393 managed_to_native_code_bytes, 1394 PercentOfOatBytes(managed_to_native_code_bytes), 1395 native_to_managed_code_bytes, 1396 PercentOfOatBytes(native_to_managed_code_bytes), 1397 class_initializer_code_bytes, 1398 PercentOfOatBytes(class_initializer_code_bytes), 1399 large_initializer_code_bytes, 1400 PercentOfOatBytes(large_initializer_code_bytes), 1401 large_method_code_bytes, 1402 PercentOfOatBytes(large_method_code_bytes)) 1403 << "DexFile sizes:\n"; 1404 for (const std::pair<std::string, size_t>& oat_dex_file_size : oat_dex_file_sizes) { 1405 os << StringPrintf("%s = %zd (%2.0f%% of oat file bytes)\n", 1406 oat_dex_file_size.first.c_str(), oat_dex_file_size.second, 1407 PercentOfOatBytes(oat_dex_file_size.second)); 1408 } 1409 1410 os << "\n" << StringPrintf("gc_map_bytes = %7zd (%2.0f%% of oat file bytes)\n" 1411 "pc_mapping_table_bytes = %7zd (%2.0f%% of oat file bytes)\n" 1412 "vmap_table_bytes = %7zd (%2.0f%% of oat file bytes)\n\n", 1413 gc_map_bytes, PercentOfOatBytes(gc_map_bytes), 1414 pc_mapping_table_bytes, PercentOfOatBytes(pc_mapping_table_bytes), 1415 vmap_table_bytes, PercentOfOatBytes(vmap_table_bytes)) 1416 << std::flush; 1417 1418 os << StringPrintf("dex_instruction_bytes = %zd\n", dex_instruction_bytes) 1419 << StringPrintf("managed_code_bytes expansion = %.2f (ignoring deduplication %.2f)\n\n", 1420 static_cast<double>(managed_code_bytes) / 1421 static_cast<double>(dex_instruction_bytes), 1422 static_cast<double>(managed_code_bytes_ignoring_deduplication) / 1423 static_cast<double>(dex_instruction_bytes)) 1424 << std::flush; 1425 1426 DumpOutliers(os); 1427 } 1428 } stats_; 1429 1430 private: 1431 enum { 1432 // Number of bytes for a constructor to be considered large. Based on the 1000 basic block 1433 // threshold, we assume 2 bytes per instruction and 2 instructions per block. 1434 kLargeConstructorDexBytes = 4000, 1435 // Number of bytes for a method to be considered large. Based on the 4000 basic block 1436 // threshold, we assume 2 bytes per instruction and 2 instructions per block. 1437 kLargeMethodDexBytes = 16000 1438 }; 1439 UniquePtr<OatDumper> oat_dumper_; 1440 std::ostream* os_; 1441 gc::space::ImageSpace& image_space_; 1442 const ImageHeader& image_header_; 1443 bool dump_raw_mapping_table_; 1444 bool dump_raw_gc_map_; 1445 1446 DISALLOW_COPY_AND_ASSIGN(ImageDumper); 1447}; 1448 1449static int oatdump(int argc, char** argv) { 1450 InitLogging(argv); 1451 1452 // Skip over argv[0]. 1453 argv++; 1454 argc--; 1455 1456 if (argc == 0) { 1457 fprintf(stderr, "No arguments specified\n"); 1458 usage(); 1459 } 1460 1461 const char* oat_filename = NULL; 1462 const char* image_filename = NULL; 1463 const char* boot_image_filename = NULL; 1464 std::string elf_filename_prefix; 1465 std::ostream* os = &std::cout; 1466 UniquePtr<std::ofstream> out; 1467 bool dump_raw_mapping_table = false; 1468 bool dump_raw_gc_map = false; 1469 1470 for (int i = 0; i < argc; i++) { 1471 const StringPiece option(argv[i]); 1472 if (option.starts_with("--oat-file=")) { 1473 oat_filename = option.substr(strlen("--oat-file=")).data(); 1474 } else if (option.starts_with("--image=")) { 1475 image_filename = option.substr(strlen("--image=")).data(); 1476 } else if (option.starts_with("--boot-image=")) { 1477 boot_image_filename = option.substr(strlen("--boot-image=")).data(); 1478 } else if (option.starts_with("--dump:")) { 1479 if (option == "--dump:raw_mapping_table") { 1480 dump_raw_mapping_table = true; 1481 } else if (option == "--dump:raw_gc_map") { 1482 dump_raw_gc_map = true; 1483 } else { 1484 fprintf(stderr, "Unknown argument %s\n", option.data()); 1485 usage(); 1486 } 1487 } else if (option.starts_with("--output=")) { 1488 const char* filename = option.substr(strlen("--output=")).data(); 1489 out.reset(new std::ofstream(filename)); 1490 if (!out->good()) { 1491 fprintf(stderr, "Failed to open output filename %s\n", filename); 1492 usage(); 1493 } 1494 os = out.get(); 1495 } else { 1496 fprintf(stderr, "Unknown argument %s\n", option.data()); 1497 usage(); 1498 } 1499 } 1500 1501 if (image_filename == NULL && oat_filename == NULL) { 1502 fprintf(stderr, "Either --image or --oat must be specified\n"); 1503 return EXIT_FAILURE; 1504 } 1505 1506 if (image_filename != NULL && oat_filename != NULL) { 1507 fprintf(stderr, "Either --image or --oat must be specified but not both\n"); 1508 return EXIT_FAILURE; 1509 } 1510 1511 if (oat_filename != NULL) { 1512 std::string error_msg; 1513 OatFile* oat_file = 1514 OatFile::Open(oat_filename, oat_filename, NULL, false, &error_msg); 1515 if (oat_file == NULL) { 1516 fprintf(stderr, "Failed to open oat file from '%s': %s\n", oat_filename, error_msg.c_str()); 1517 return EXIT_FAILURE; 1518 } 1519 OatDumper oat_dumper(*oat_file, dump_raw_mapping_table, dump_raw_gc_map); 1520 oat_dumper.Dump(*os); 1521 return EXIT_SUCCESS; 1522 } 1523 1524 Runtime::Options options; 1525 std::string image_option; 1526 std::string oat_option; 1527 std::string boot_image_option; 1528 std::string boot_oat_option; 1529 1530 // We are more like a compiler than a run-time. We don't want to execute code. 1531 NoopCompilerCallbacks callbacks; 1532 options.push_back(std::make_pair("compilercallbacks", &callbacks)); 1533 1534 if (boot_image_filename != NULL) { 1535 boot_image_option += "-Ximage:"; 1536 boot_image_option += boot_image_filename; 1537 options.push_back(std::make_pair(boot_image_option.c_str(), reinterpret_cast<void*>(NULL))); 1538 } 1539 if (image_filename != NULL) { 1540 image_option += "-Ximage:"; 1541 image_option += image_filename; 1542 options.push_back(std::make_pair(image_option.c_str(), reinterpret_cast<void*>(NULL))); 1543 } 1544 1545 if (!Runtime::Create(options, false)) { 1546 fprintf(stderr, "Failed to create runtime\n"); 1547 return EXIT_FAILURE; 1548 } 1549 UniquePtr<Runtime> runtime(Runtime::Current()); 1550 // Runtime::Create acquired the mutator_lock_ that is normally given away when we Runtime::Start, 1551 // give it away now and then switch to a more manageable ScopedObjectAccess. 1552 Thread::Current()->TransitionFromRunnableToSuspended(kNative); 1553 ScopedObjectAccess soa(Thread::Current()); 1554 gc::Heap* heap = Runtime::Current()->GetHeap(); 1555 gc::space::ImageSpace* image_space = heap->GetImageSpace(); 1556 CHECK(image_space != NULL); 1557 const ImageHeader& image_header = image_space->GetImageHeader(); 1558 if (!image_header.IsValid()) { 1559 fprintf(stderr, "Invalid image header %s\n", image_filename); 1560 return EXIT_FAILURE; 1561 } 1562 ImageDumper image_dumper(os, *image_space, image_header, 1563 dump_raw_mapping_table, dump_raw_gc_map); 1564 image_dumper.Dump(); 1565 return EXIT_SUCCESS; 1566} 1567 1568} // namespace art 1569 1570int main(int argc, char** argv) { 1571 return art::oatdump(argc, argv); 1572} 1573