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 "oat.h" 46 #include "object_utils.h" 47 #include "os.h" 48 #include "runtime.h" 49 #include "safe_map.h" 50 #include "scoped_thread_state_change.h" 51 #include "verifier/method_verifier.h" 52 #include "vmap_table.h" 53 54 namespace art { 55 56 static void usage() { 57 fprintf(stderr, 58 "Usage: oatdump [options] ...\n" 59 " Example: oatdump --image=$ANDROID_PRODUCT_OUT/system/framework/boot.art --host-prefix=$ANDROID_PRODUCT_OUT\n" 60 " Example: adb shell oatdump --image=/system/framework/boot.art\n" 61 "\n"); 62 fprintf(stderr, 63 " --oat-file=<file.oat>: specifies an input oat filename.\n" 64 " Example: --oat-file=/system/framework/boot.oat\n" 65 "\n"); 66 fprintf(stderr, 67 " --image=<file.art>: specifies an input image filename.\n" 68 " Example: --image=/system/framework/boot.art\n" 69 "\n"); 70 fprintf(stderr, 71 " --boot-image=<file.art>: provide the image file for the boot class path.\n" 72 " Example: --boot-image=/system/framework/boot.art\n" 73 "\n"); 74 fprintf(stderr, 75 " --host-prefix may be used to translate host paths to target paths during\n" 76 " cross compilation.\n" 77 " Example: --host-prefix=out/target/product/crespo\n" 78 " Default: $ANDROID_PRODUCT_OUT\n" 79 "\n"); 80 fprintf(stderr, 81 " --output=<file> may be used to send the output to a file.\n" 82 " Example: --output=/tmp/oatdump.txt\n" 83 "\n"); 84 exit(EXIT_FAILURE); 85 } 86 87 const char* image_roots_descriptions_[] = { 88 "kResolutionMethod", 89 "kCalleeSaveMethod", 90 "kRefsOnlySaveMethod", 91 "kRefsAndArgsSaveMethod", 92 "kOatLocation", 93 "kDexCaches", 94 "kClassRoots", 95 }; 96 97 class OatDumper { 98 public: 99 explicit OatDumper(const std::string& host_prefix, const OatFile& oat_file) 100 : host_prefix_(host_prefix), 101 oat_file_(oat_file), 102 oat_dex_files_(oat_file.GetOatDexFiles()), 103 disassembler_(Disassembler::Create(oat_file_.GetOatHeader().GetInstructionSet())) { 104 AddAllOffsets(); 105 } 106 107 void Dump(std::ostream& os) { 108 const OatHeader& oat_header = oat_file_.GetOatHeader(); 109 110 os << "MAGIC:\n"; 111 os << oat_header.GetMagic() << "\n\n"; 112 113 os << "CHECKSUM:\n"; 114 os << StringPrintf("0x%08x\n\n", oat_header.GetChecksum()); 115 116 os << "INSTRUCTION SET:\n"; 117 os << oat_header.GetInstructionSet() << "\n\n"; 118 119 os << "DEX FILE COUNT:\n"; 120 os << oat_header.GetDexFileCount() << "\n\n"; 121 122 os << "EXECUTABLE OFFSET:\n"; 123 os << StringPrintf("0x%08x\n\n", oat_header.GetExecutableOffset()); 124 125 os << "IMAGE FILE LOCATION OAT CHECKSUM:\n"; 126 os << StringPrintf("0x%08x\n\n", oat_header.GetImageFileLocationOatChecksum()); 127 128 os << "IMAGE FILE LOCATION OAT BEGIN:\n"; 129 os << StringPrintf("0x%08x\n\n", oat_header.GetImageFileLocationOatDataBegin()); 130 131 os << "IMAGE FILE LOCATION:\n"; 132 const std::string image_file_location(oat_header.GetImageFileLocation()); 133 os << image_file_location; 134 if (!image_file_location.empty() && !host_prefix_.empty()) { 135 os << " (" << host_prefix_ << image_file_location << ")"; 136 } 137 os << "\n\n"; 138 139 os << "BEGIN:\n"; 140 os << reinterpret_cast<const void*>(oat_file_.Begin()) << "\n\n"; 141 142 os << "END:\n"; 143 os << reinterpret_cast<const void*>(oat_file_.End()) << "\n\n"; 144 145 os << std::flush; 146 147 for (size_t i = 0; i < oat_dex_files_.size(); i++) { 148 const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i]; 149 CHECK(oat_dex_file != NULL); 150 DumpOatDexFile(os, *oat_dex_file); 151 } 152 } 153 154 size_t ComputeSize(const void* oat_data) { 155 if (reinterpret_cast<const byte*>(oat_data) < oat_file_.Begin() || 156 reinterpret_cast<const byte*>(oat_data) > oat_file_.End()) { 157 return 0; // Address not in oat file 158 } 159 uint32_t begin_offset = reinterpret_cast<size_t>(oat_data) - 160 reinterpret_cast<size_t>(oat_file_.Begin()); 161 typedef std::set<uint32_t>::iterator It; 162 It it = offsets_.upper_bound(begin_offset); 163 CHECK(it != offsets_.end()); 164 uint32_t end_offset = *it; 165 return end_offset - begin_offset; 166 } 167 168 InstructionSet GetInstructionSet() { 169 return oat_file_.GetOatHeader().GetInstructionSet(); 170 } 171 172 const void* GetOatCode(mirror::ArtMethod* m) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 173 MethodHelper mh(m); 174 for (size_t i = 0; i < oat_dex_files_.size(); i++) { 175 const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i]; 176 CHECK(oat_dex_file != NULL); 177 UniquePtr<const DexFile> dex_file(oat_dex_file->OpenDexFile()); 178 if (dex_file.get() != NULL) { 179 const DexFile::ClassDef* class_def = 180 dex_file->FindClassDef(mh.GetDeclaringClassDescriptor()); 181 if (class_def != NULL) { 182 uint16_t class_def_index = dex_file->GetIndexForClassDef(*class_def); 183 const OatFile::OatClass* oat_class = oat_dex_file->GetOatClass(class_def_index); 184 CHECK(oat_class != NULL); 185 size_t method_index = m->GetMethodIndex(); 186 return oat_class->GetOatMethod(method_index).GetCode(); 187 } 188 } 189 } 190 return NULL; 191 } 192 193 private: 194 void AddAllOffsets() { 195 // We don't know the length of the code for each method, but we need to know where to stop 196 // when disassembling. What we do know is that a region of code will be followed by some other 197 // region, so if we keep a sorted sequence of the start of each region, we can infer the length 198 // of a piece of code by using upper_bound to find the start of the next region. 199 for (size_t i = 0; i < oat_dex_files_.size(); i++) { 200 const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i]; 201 CHECK(oat_dex_file != NULL); 202 UniquePtr<const DexFile> dex_file(oat_dex_file->OpenDexFile()); 203 if (dex_file.get() == NULL) { 204 continue; 205 } 206 offsets_.insert(reinterpret_cast<uint32_t>(&dex_file->GetHeader())); 207 for (size_t class_def_index = 0; class_def_index < dex_file->NumClassDefs(); class_def_index++) { 208 const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index); 209 UniquePtr<const OatFile::OatClass> oat_class(oat_dex_file->GetOatClass(class_def_index)); 210 const byte* class_data = dex_file->GetClassData(class_def); 211 if (class_data != NULL) { 212 ClassDataItemIterator it(*dex_file, class_data); 213 SkipAllFields(it); 214 uint32_t class_method_index = 0; 215 while (it.HasNextDirectMethod()) { 216 AddOffsets(oat_class->GetOatMethod(class_method_index++)); 217 it.Next(); 218 } 219 while (it.HasNextVirtualMethod()) { 220 AddOffsets(oat_class->GetOatMethod(class_method_index++)); 221 it.Next(); 222 } 223 } 224 } 225 } 226 227 // If the last thing in the file is code for a method, there won't be an offset for the "next" 228 // thing. Instead of having a special case in the upper_bound code, let's just add an entry 229 // for the end of the file. 230 offsets_.insert(static_cast<uint32_t>(oat_file_.Size())); 231 } 232 233 void AddOffsets(const OatFile::OatMethod& oat_method) { 234 uint32_t code_offset = oat_method.GetCodeOffset(); 235 if (oat_file_.GetOatHeader().GetInstructionSet() == kThumb2) { 236 code_offset &= ~0x1; 237 } 238 offsets_.insert(code_offset); 239 offsets_.insert(oat_method.GetMappingTableOffset()); 240 offsets_.insert(oat_method.GetVmapTableOffset()); 241 offsets_.insert(oat_method.GetNativeGcMapOffset()); 242 } 243 244 void DumpOatDexFile(std::ostream& os, const OatFile::OatDexFile& oat_dex_file) { 245 os << "OAT DEX FILE:\n"; 246 os << StringPrintf("location: %s\n", oat_dex_file.GetDexFileLocation().c_str()); 247 os << StringPrintf("checksum: 0x%08x\n", oat_dex_file.GetDexFileLocationChecksum()); 248 UniquePtr<const DexFile> dex_file(oat_dex_file.OpenDexFile()); 249 if (dex_file.get() == NULL) { 250 os << "NOT FOUND\n\n"; 251 return; 252 } 253 for (size_t class_def_index = 0; class_def_index < dex_file->NumClassDefs(); class_def_index++) { 254 const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index); 255 const char* descriptor = dex_file->GetClassDescriptor(class_def); 256 UniquePtr<const OatFile::OatClass> oat_class(oat_dex_file.GetOatClass(class_def_index)); 257 CHECK(oat_class.get() != NULL); 258 os << StringPrintf("%zd: %s (type_idx=%d) (", class_def_index, descriptor, class_def.class_idx_) 259 << oat_class->GetStatus() << ")\n"; 260 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 261 std::ostream indented_os(&indent_filter); 262 DumpOatClass(indented_os, *oat_class.get(), *(dex_file.get()), class_def); 263 } 264 265 os << std::flush; 266 } 267 268 static void SkipAllFields(ClassDataItemIterator& it) { 269 while (it.HasNextStaticField()) { 270 it.Next(); 271 } 272 while (it.HasNextInstanceField()) { 273 it.Next(); 274 } 275 } 276 277 void DumpOatClass(std::ostream& os, const OatFile::OatClass& oat_class, const DexFile& dex_file, 278 const DexFile::ClassDef& class_def) { 279 const byte* class_data = dex_file.GetClassData(class_def); 280 if (class_data == NULL) { // empty class such as a marker interface? 281 return; 282 } 283 ClassDataItemIterator it(dex_file, class_data); 284 SkipAllFields(it); 285 uint32_t class_method_idx = 0; 286 while (it.HasNextDirectMethod()) { 287 const OatFile::OatMethod oat_method = oat_class.GetOatMethod(class_method_idx); 288 DumpOatMethod(os, class_def, class_method_idx, oat_method, dex_file, 289 it.GetMemberIndex(), it.GetMethodCodeItem(), it.GetMemberAccessFlags()); 290 class_method_idx++; 291 it.Next(); 292 } 293 while (it.HasNextVirtualMethod()) { 294 const OatFile::OatMethod oat_method = oat_class.GetOatMethod(class_method_idx); 295 DumpOatMethod(os, class_def, class_method_idx, oat_method, dex_file, 296 it.GetMemberIndex(), it.GetMethodCodeItem(), it.GetMemberAccessFlags()); 297 class_method_idx++; 298 it.Next(); 299 } 300 DCHECK(!it.HasNext()); 301 os << std::flush; 302 } 303 304 void DumpOatMethod(std::ostream& os, const DexFile::ClassDef& class_def, 305 uint32_t class_method_index, 306 const OatFile::OatMethod& oat_method, const DexFile& dex_file, 307 uint32_t dex_method_idx, const DexFile::CodeItem* code_item, 308 uint32_t method_access_flags) { 309 os << StringPrintf("%d: %s (dex_method_idx=%d)\n", 310 class_method_index, PrettyMethod(dex_method_idx, dex_file, true).c_str(), 311 dex_method_idx); 312 Indenter indent1_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 313 std::ostream indent1_os(&indent1_filter); 314 { 315 indent1_os << "DEX CODE:\n"; 316 Indenter indent2_filter(indent1_os.rdbuf(), kIndentChar, kIndentBy1Count); 317 std::ostream indent2_os(&indent2_filter); 318 DumpDexCode(indent2_os, dex_file, code_item); 319 } 320 if (Runtime::Current() != NULL) { 321 indent1_os << "VERIFIER TYPE ANALYSIS:\n"; 322 Indenter indent2_filter(indent1_os.rdbuf(), kIndentChar, kIndentBy1Count); 323 std::ostream indent2_os(&indent2_filter); 324 DumpVerifier(indent2_os, dex_method_idx, &dex_file, class_def, code_item, 325 method_access_flags); 326 } 327 { 328 indent1_os << "OAT DATA:\n"; 329 Indenter indent2_filter(indent1_os.rdbuf(), kIndentChar, kIndentBy1Count); 330 std::ostream indent2_os(&indent2_filter); 331 332 indent2_os << StringPrintf("frame_size_in_bytes: %zd\n", oat_method.GetFrameSizeInBytes()); 333 indent2_os << StringPrintf("core_spill_mask: 0x%08x ", oat_method.GetCoreSpillMask()); 334 DumpSpillMask(indent2_os, oat_method.GetCoreSpillMask(), false); 335 indent2_os << StringPrintf("\nfp_spill_mask: 0x%08x ", oat_method.GetFpSpillMask()); 336 DumpSpillMask(indent2_os, oat_method.GetFpSpillMask(), true); 337 indent2_os << StringPrintf("\nvmap_table: %p (offset=0x%08x)\n", 338 oat_method.GetVmapTable(), oat_method.GetVmapTableOffset()); 339 DumpVmap(indent2_os, oat_method); 340 indent2_os << StringPrintf("mapping_table: %p (offset=0x%08x)\n", 341 oat_method.GetMappingTable(), oat_method.GetMappingTableOffset()); 342 const bool kDumpRawMappingTable = false; 343 if (kDumpRawMappingTable) { 344 Indenter indent3_filter(indent2_os.rdbuf(), kIndentChar, kIndentBy1Count); 345 std::ostream indent3_os(&indent3_filter); 346 DumpMappingTable(indent3_os, oat_method); 347 } 348 indent2_os << StringPrintf("gc_map: %p (offset=0x%08x)\n", 349 oat_method.GetNativeGcMap(), oat_method.GetNativeGcMapOffset()); 350 const bool kDumpRawGcMap = false; 351 if (kDumpRawGcMap) { 352 Indenter indent3_filter(indent2_os.rdbuf(), kIndentChar, kIndentBy1Count); 353 std::ostream indent3_os(&indent3_filter); 354 DumpGcMap(indent3_os, oat_method, code_item); 355 } 356 } 357 { 358 indent1_os << StringPrintf("CODE: %p (offset=0x%08x size=%d)%s\n", 359 oat_method.GetCode(), 360 oat_method.GetCodeOffset(), 361 oat_method.GetCodeSize(), 362 oat_method.GetCode() != NULL ? "..." : ""); 363 Indenter indent2_filter(indent1_os.rdbuf(), kIndentChar, kIndentBy1Count); 364 std::ostream indent2_os(&indent2_filter); 365 DumpCode(indent2_os, oat_method, dex_method_idx, &dex_file, class_def, code_item, 366 method_access_flags); 367 } 368 } 369 370 void DumpSpillMask(std::ostream& os, uint32_t spill_mask, bool is_float) { 371 if (spill_mask == 0) { 372 return; 373 } 374 os << "("; 375 for (size_t i = 0; i < 32; i++) { 376 if ((spill_mask & (1 << i)) != 0) { 377 if (is_float) { 378 os << "fr" << i; 379 } else { 380 os << "r" << i; 381 } 382 spill_mask ^= 1 << i; // clear bit 383 if (spill_mask != 0) { 384 os << ", "; 385 } else { 386 break; 387 } 388 } 389 } 390 os << ")"; 391 } 392 393 void DumpVmap(std::ostream& os, const OatFile::OatMethod& oat_method) { 394 const uint8_t* raw_table = oat_method.GetVmapTable(); 395 if (raw_table != NULL) { 396 const VmapTable vmap_table(raw_table); 397 bool first = true; 398 bool processing_fp = false; 399 uint32_t spill_mask = oat_method.GetCoreSpillMask(); 400 for (size_t i = 0; i < vmap_table.Size(); i++) { 401 uint16_t dex_reg = vmap_table[i]; 402 uint32_t cpu_reg = vmap_table.ComputeRegister(spill_mask, i, 403 processing_fp ? kFloatVReg : kIntVReg); 404 os << (first ? "v" : ", v") << dex_reg; 405 if (!processing_fp) { 406 os << "/r" << cpu_reg; 407 } else { 408 os << "/fr" << cpu_reg; 409 } 410 first = false; 411 if (!processing_fp && dex_reg == 0xFFFF) { 412 processing_fp = true; 413 spill_mask = oat_method.GetFpSpillMask(); 414 } 415 } 416 os << "\n"; 417 } 418 } 419 420 void DescribeVReg(std::ostream& os, const OatFile::OatMethod& oat_method, 421 const DexFile::CodeItem* code_item, size_t reg, VRegKind kind) { 422 const uint8_t* raw_table = oat_method.GetVmapTable(); 423 if (raw_table != NULL) { 424 const VmapTable vmap_table(raw_table); 425 uint32_t vmap_offset; 426 if (vmap_table.IsInContext(reg, kind, &vmap_offset)) { 427 bool is_float = (kind == kFloatVReg) || (kind == kDoubleLoVReg) || (kind == kDoubleHiVReg); 428 uint32_t spill_mask = is_float ? oat_method.GetFpSpillMask() 429 : oat_method.GetCoreSpillMask(); 430 os << (is_float ? "fr" : "r") << vmap_table.ComputeRegister(spill_mask, vmap_offset, kind); 431 } else { 432 uint32_t offset = StackVisitor::GetVRegOffset(code_item, oat_method.GetCoreSpillMask(), 433 oat_method.GetFpSpillMask(), 434 oat_method.GetFrameSizeInBytes(), reg); 435 os << "[sp + #" << offset << "]"; 436 } 437 } 438 } 439 440 void DumpGcMap(std::ostream& os, const OatFile::OatMethod& oat_method, 441 const DexFile::CodeItem* code_item) { 442 const uint8_t* gc_map_raw = oat_method.GetNativeGcMap(); 443 if (gc_map_raw == NULL) { 444 return; 445 } 446 NativePcOffsetToReferenceMap map(gc_map_raw); 447 const void* code = oat_method.GetCode(); 448 for (size_t entry = 0; entry < map.NumEntries(); entry++) { 449 const uint8_t* native_pc = reinterpret_cast<const uint8_t*>(code) + 450 map.GetNativePcOffset(entry); 451 os << StringPrintf("%p", native_pc); 452 size_t num_regs = map.RegWidth() * 8; 453 const uint8_t* reg_bitmap = map.GetBitMap(entry); 454 bool first = true; 455 for (size_t reg = 0; reg < num_regs; reg++) { 456 if (((reg_bitmap[reg / 8] >> (reg % 8)) & 0x01) != 0) { 457 if (first) { 458 os << " v" << reg << " ("; 459 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 460 os << ")"; 461 first = false; 462 } else { 463 os << ", v" << reg << " ("; 464 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 465 os << ")"; 466 } 467 } 468 } 469 os << "\n"; 470 } 471 } 472 473 void DumpMappingTable(std::ostream& os, const OatFile::OatMethod& oat_method) { 474 const void* code = oat_method.GetCode(); 475 if (code == NULL) { 476 return; 477 } 478 MappingTable table(oat_method.GetMappingTable()); 479 if (table.TotalSize() != 0) { 480 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 481 std::ostream indent_os(&indent_filter); 482 if (table.PcToDexSize() != 0) { 483 typedef MappingTable::PcToDexIterator It; 484 os << "suspend point mappings {\n"; 485 for (It cur = table.PcToDexBegin(), end = table.PcToDexEnd(); cur != end; ++cur) { 486 indent_os << StringPrintf("0x%04x -> 0x%04x\n", cur.NativePcOffset(), cur.DexPc()); 487 } 488 os << "}\n"; 489 } 490 if (table.DexToPcSize() != 0) { 491 typedef MappingTable::DexToPcIterator It; 492 os << "catch entry mappings {\n"; 493 for (It cur = table.DexToPcBegin(), end = table.DexToPcEnd(); cur != end; ++cur) { 494 indent_os << StringPrintf("0x%04x -> 0x%04x\n", cur.NativePcOffset(), cur.DexPc()); 495 } 496 os << "}\n"; 497 } 498 } 499 } 500 501 uint32_t DumpMappingAtOffset(std::ostream& os, const OatFile::OatMethod& oat_method, 502 size_t offset, bool suspend_point_mapping) { 503 MappingTable table(oat_method.GetMappingTable()); 504 if (suspend_point_mapping && table.PcToDexSize() > 0) { 505 typedef MappingTable::PcToDexIterator It; 506 for (It cur = table.PcToDexBegin(), end = table.PcToDexEnd(); cur != end; ++cur) { 507 if (offset == cur.NativePcOffset()) { 508 os << StringPrintf("suspend point dex PC: 0x%04x\n", cur.DexPc()); 509 return cur.DexPc(); 510 } 511 } 512 } else if (!suspend_point_mapping && table.DexToPcSize() > 0) { 513 typedef MappingTable::DexToPcIterator It; 514 for (It cur = table.DexToPcBegin(), end = table.DexToPcEnd(); cur != end; ++cur) { 515 if (offset == cur.NativePcOffset()) { 516 os << StringPrintf("catch entry dex PC: 0x%04x\n", cur.DexPc()); 517 return cur.DexPc(); 518 } 519 } 520 } 521 return DexFile::kDexNoIndex; 522 } 523 524 void DumpGcMapAtNativePcOffset(std::ostream& os, const OatFile::OatMethod& oat_method, 525 const DexFile::CodeItem* code_item, size_t native_pc_offset) { 526 const uint8_t* gc_map_raw = oat_method.GetNativeGcMap(); 527 if (gc_map_raw != NULL) { 528 NativePcOffsetToReferenceMap map(gc_map_raw); 529 if (map.HasEntry(native_pc_offset)) { 530 size_t num_regs = map.RegWidth() * 8; 531 const uint8_t* reg_bitmap = map.FindBitMap(native_pc_offset); 532 bool first = true; 533 for (size_t reg = 0; reg < num_regs; reg++) { 534 if (((reg_bitmap[reg / 8] >> (reg % 8)) & 0x01) != 0) { 535 if (first) { 536 os << "GC map objects: v" << reg << " ("; 537 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 538 os << ")"; 539 first = false; 540 } else { 541 os << ", v" << reg << " ("; 542 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 543 os << ")"; 544 } 545 } 546 } 547 if (!first) { 548 os << "\n"; 549 } 550 } 551 } 552 } 553 554 void DumpVRegsAtDexPc(std::ostream& os, const OatFile::OatMethod& oat_method, 555 uint32_t dex_method_idx, const DexFile* dex_file, 556 const DexFile::ClassDef& class_def, const DexFile::CodeItem* code_item, 557 uint32_t method_access_flags, uint32_t dex_pc) { 558 static UniquePtr<verifier::MethodVerifier> verifier; 559 static const DexFile* verified_dex_file = NULL; 560 static uint32_t verified_dex_method_idx = DexFile::kDexNoIndex; 561 if (dex_file != verified_dex_file || verified_dex_method_idx != dex_method_idx) { 562 ScopedObjectAccess soa(Thread::Current()); 563 mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(*dex_file); 564 mirror::ClassLoader* class_loader = NULL; 565 verifier.reset(new verifier::MethodVerifier(dex_file, dex_cache, class_loader, &class_def, 566 code_item, dex_method_idx, NULL, 567 method_access_flags, true, true)); 568 verifier->Verify(); 569 verified_dex_file = dex_file; 570 verified_dex_method_idx = dex_method_idx; 571 } 572 std::vector<int32_t> kinds = verifier->DescribeVRegs(dex_pc); 573 bool first = true; 574 for (size_t reg = 0; reg < code_item->registers_size_; reg++) { 575 VRegKind kind = static_cast<VRegKind>(kinds.at(reg * 2)); 576 if (kind != kUndefined) { 577 if (first) { 578 os << "VRegs: v"; 579 first = false; 580 } else { 581 os << ", v"; 582 } 583 os << reg << " ("; 584 switch (kind) { 585 case kImpreciseConstant: 586 os << "Imprecise Constant: " << kinds.at((reg * 2) + 1) << ", "; 587 DescribeVReg(os, oat_method, code_item, reg, kind); 588 break; 589 case kConstant: 590 os << "Constant: " << kinds.at((reg * 2) + 1); 591 break; 592 default: 593 DescribeVReg(os, oat_method, code_item, reg, kind); 594 break; 595 } 596 os << ")"; 597 } 598 } 599 if (!first) { 600 os << "\n"; 601 } 602 } 603 604 605 void DumpDexCode(std::ostream& os, const DexFile& dex_file, const DexFile::CodeItem* code_item) { 606 if (code_item != NULL) { 607 size_t i = 0; 608 while (i < code_item->insns_size_in_code_units_) { 609 const Instruction* instruction = Instruction::At(&code_item->insns_[i]); 610 os << StringPrintf("0x%04zx: %s\n", i, instruction->DumpString(&dex_file).c_str()); 611 i += instruction->SizeInCodeUnits(); 612 } 613 } 614 } 615 616 void DumpVerifier(std::ostream& os, uint32_t dex_method_idx, const DexFile* dex_file, 617 const DexFile::ClassDef& class_def, const DexFile::CodeItem* code_item, 618 uint32_t method_access_flags) { 619 if ((method_access_flags & kAccNative) == 0) { 620 ScopedObjectAccess soa(Thread::Current()); 621 mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(*dex_file); 622 mirror::ClassLoader* class_loader = NULL; 623 verifier::MethodVerifier::VerifyMethodAndDump(os, dex_method_idx, dex_file, dex_cache, 624 class_loader, &class_def, code_item, NULL, 625 method_access_flags); 626 } 627 } 628 629 void DumpCode(std::ostream& os, const OatFile::OatMethod& oat_method, 630 uint32_t dex_method_idx, const DexFile* dex_file, 631 const DexFile::ClassDef& class_def, const DexFile::CodeItem* code_item, 632 uint32_t method_access_flags) { 633 const void* code = oat_method.GetCode(); 634 size_t code_size = oat_method.GetCodeSize(); 635 if (code == NULL || code_size == 0) { 636 os << "NO CODE!\n"; 637 return; 638 } 639 const uint8_t* native_pc = reinterpret_cast<const uint8_t*>(code); 640 size_t offset = 0; 641 const bool kDumpVRegs = (Runtime::Current() != NULL); 642 while (offset < code_size) { 643 DumpMappingAtOffset(os, oat_method, offset, false); 644 offset += disassembler_->Dump(os, native_pc + offset); 645 uint32_t dex_pc = DumpMappingAtOffset(os, oat_method, offset, true); 646 if (dex_pc != DexFile::kDexNoIndex) { 647 DumpGcMapAtNativePcOffset(os, oat_method, code_item, offset); 648 if (kDumpVRegs) { 649 DumpVRegsAtDexPc(os, oat_method, dex_method_idx, dex_file, class_def, code_item, 650 method_access_flags, dex_pc); 651 } 652 } 653 } 654 } 655 656 const std::string host_prefix_; 657 const OatFile& oat_file_; 658 std::vector<const OatFile::OatDexFile*> oat_dex_files_; 659 std::set<uint32_t> offsets_; 660 UniquePtr<Disassembler> disassembler_; 661 }; 662 663 class ImageDumper { 664 public: 665 explicit ImageDumper(std::ostream* os, const std::string& image_filename, 666 const std::string& host_prefix, gc::space::ImageSpace& image_space, 667 const ImageHeader& image_header) 668 : os_(os), image_filename_(image_filename), host_prefix_(host_prefix), 669 image_space_(image_space), image_header_(image_header) {} 670 671 void Dump() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 672 std::ostream& os = *os_; 673 os << "MAGIC: " << image_header_.GetMagic() << "\n\n"; 674 675 os << "IMAGE BEGIN: " << reinterpret_cast<void*>(image_header_.GetImageBegin()) << "\n\n"; 676 677 os << "IMAGE BITMAP OFFSET: " << reinterpret_cast<void*>(image_header_.GetImageBitmapOffset()) 678 << " SIZE: " << reinterpret_cast<void*>(image_header_.GetImageBitmapSize()) << "\n\n"; 679 680 os << "OAT CHECKSUM: " << StringPrintf("0x%08x\n\n", image_header_.GetOatChecksum()); 681 682 os << "OAT FILE BEGIN:" << reinterpret_cast<void*>(image_header_.GetOatFileBegin()) << "\n\n"; 683 684 os << "OAT DATA BEGIN:" << reinterpret_cast<void*>(image_header_.GetOatDataBegin()) << "\n\n"; 685 686 os << "OAT DATA END:" << reinterpret_cast<void*>(image_header_.GetOatDataEnd()) << "\n\n"; 687 688 os << "OAT FILE END:" << reinterpret_cast<void*>(image_header_.GetOatFileEnd()) << "\n\n"; 689 690 { 691 os << "ROOTS: " << reinterpret_cast<void*>(image_header_.GetImageRoots()) << "\n"; 692 Indenter indent1_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 693 std::ostream indent1_os(&indent1_filter); 694 CHECK_EQ(arraysize(image_roots_descriptions_), size_t(ImageHeader::kImageRootsMax)); 695 for (int i = 0; i < ImageHeader::kImageRootsMax; i++) { 696 ImageHeader::ImageRoot image_root = static_cast<ImageHeader::ImageRoot>(i); 697 const char* image_root_description = image_roots_descriptions_[i]; 698 mirror::Object* image_root_object = image_header_.GetImageRoot(image_root); 699 indent1_os << StringPrintf("%s: %p\n", image_root_description, image_root_object); 700 if (image_root_object->IsObjectArray()) { 701 Indenter indent2_filter(indent1_os.rdbuf(), kIndentChar, kIndentBy1Count); 702 std::ostream indent2_os(&indent2_filter); 703 // TODO: replace down_cast with AsObjectArray (g++ currently has a problem with this) 704 mirror::ObjectArray<mirror::Object>* image_root_object_array 705 = down_cast<mirror::ObjectArray<mirror::Object>*>(image_root_object); 706 // = image_root_object->AsObjectArray<Object>(); 707 for (int i = 0; i < image_root_object_array->GetLength(); i++) { 708 mirror::Object* value = image_root_object_array->Get(i); 709 if (value != NULL) { 710 indent2_os << i << ": "; 711 PrettyObjectValue(indent2_os, value->GetClass(), value); 712 } else { 713 indent2_os << i << ": null\n"; 714 } 715 } 716 } 717 } 718 } 719 os << "\n"; 720 721 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 722 mirror::Object* oat_location_object = image_header_.GetImageRoot(ImageHeader::kOatLocation); 723 std::string oat_location(oat_location_object->AsString()->ToModifiedUtf8()); 724 os << "OAT LOCATION: " << oat_location; 725 if (!host_prefix_.empty()) { 726 oat_location = host_prefix_ + oat_location; 727 os << " (" << oat_location << ")"; 728 } 729 os << "\n"; 730 const OatFile* oat_file = class_linker->FindOatFileFromOatLocation(oat_location); 731 if (oat_file == NULL) { 732 os << "NOT FOUND\n"; 733 return; 734 } 735 os << "\n"; 736 737 stats_.oat_file_bytes = oat_file->Size(); 738 739 oat_dumper_.reset(new OatDumper(host_prefix_, *oat_file)); 740 741 for (const OatFile::OatDexFile* oat_dex_file : oat_file->GetOatDexFiles()) { 742 CHECK(oat_dex_file != NULL); 743 stats_.oat_dex_file_sizes.push_back(std::make_pair(oat_dex_file->GetDexFileLocation(), 744 oat_dex_file->FileSize())); 745 } 746 747 os << "OBJECTS:\n" << std::flush; 748 749 // Loop through all the image spaces and dump their objects. 750 gc::Heap* heap = Runtime::Current()->GetHeap(); 751 const std::vector<gc::space::ContinuousSpace*>& spaces = heap->GetContinuousSpaces(); 752 Thread* self = Thread::Current(); 753 { 754 WriterMutexLock mu(self, *Locks::heap_bitmap_lock_); 755 heap->FlushAllocStack(); 756 } 757 { 758 std::ostream* saved_os = os_; 759 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 760 std::ostream indent_os(&indent_filter); 761 os_ = &indent_os; 762 ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_); 763 for (const auto& space : spaces) { 764 if (space->IsImageSpace()) { 765 gc::space::ImageSpace* image_space = space->AsImageSpace(); 766 image_space->GetLiveBitmap()->Walk(ImageDumper::Callback, this); 767 indent_os << "\n"; 768 } 769 } 770 // Dump the large objects separately. 771 heap->GetLargeObjectsSpace()->GetLiveObjects()->Walk(ImageDumper::Callback, this); 772 indent_os << "\n"; 773 os_ = saved_os; 774 } 775 os << "STATS:\n" << std::flush; 776 UniquePtr<File> file(OS::OpenFileForReading(image_filename_.c_str())); 777 if (file.get() == NULL) { 778 std::string cache_location(GetDalvikCacheFilenameOrDie(image_filename_)); 779 file.reset(OS::OpenFileForReading(cache_location.c_str())); 780 if (file.get() == NULL) { 781 LOG(WARNING) << "Failed to find image in " << image_filename_ 782 << " and " << cache_location; 783 } 784 } 785 if (file.get() != NULL) { 786 stats_.file_bytes = file->GetLength(); 787 } 788 size_t header_bytes = sizeof(ImageHeader); 789 stats_.header_bytes = header_bytes; 790 size_t alignment_bytes = RoundUp(header_bytes, kObjectAlignment) - header_bytes; 791 stats_.alignment_bytes += alignment_bytes; 792 stats_.alignment_bytes += image_header_.GetImageBitmapOffset() - image_header_.GetImageSize(); 793 stats_.bitmap_bytes += image_header_.GetImageBitmapSize(); 794 stats_.Dump(os); 795 os << "\n"; 796 797 os << std::flush; 798 799 oat_dumper_->Dump(os); 800 } 801 802 private: 803 static void PrettyObjectValue(std::ostream& os, mirror::Class* type, mirror::Object* value) 804 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 805 CHECK(type != NULL); 806 if (value == NULL) { 807 os << StringPrintf("null %s\n", PrettyDescriptor(type).c_str()); 808 } else if (type->IsStringClass()) { 809 mirror::String* string = value->AsString(); 810 os << StringPrintf("%p String: %s\n", string, 811 PrintableString(string->ToModifiedUtf8()).c_str()); 812 } else if (type->IsClassClass()) { 813 mirror::Class* klass = value->AsClass(); 814 os << StringPrintf("%p Class: %s\n", klass, PrettyDescriptor(klass).c_str()); 815 } else if (type->IsArtFieldClass()) { 816 mirror::ArtField* field = value->AsArtField(); 817 os << StringPrintf("%p Field: %s\n", field, PrettyField(field).c_str()); 818 } else if (type->IsArtMethodClass()) { 819 mirror::ArtMethod* method = value->AsArtMethod(); 820 os << StringPrintf("%p Method: %s\n", method, PrettyMethod(method).c_str()); 821 } else { 822 os << StringPrintf("%p %s\n", value, PrettyDescriptor(type).c_str()); 823 } 824 } 825 826 static void PrintField(std::ostream& os, mirror::ArtField* field, mirror::Object* obj) 827 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 828 FieldHelper fh(field); 829 const char* descriptor = fh.GetTypeDescriptor(); 830 os << StringPrintf("%s: ", fh.GetName()); 831 if (descriptor[0] != 'L' && descriptor[0] != '[') { 832 mirror::Class* type = fh.GetType(); 833 if (type->IsPrimitiveLong()) { 834 os << StringPrintf("%lld (0x%llx)\n", field->Get64(obj), field->Get64(obj)); 835 } else if (type->IsPrimitiveDouble()) { 836 os << StringPrintf("%f (%a)\n", field->GetDouble(obj), field->GetDouble(obj)); 837 } else if (type->IsPrimitiveFloat()) { 838 os << StringPrintf("%f (%a)\n", field->GetFloat(obj), field->GetFloat(obj)); 839 } else { 840 DCHECK(type->IsPrimitive()); 841 os << StringPrintf("%d (0x%x)\n", field->Get32(obj), field->Get32(obj)); 842 } 843 } else { 844 // Get the value, don't compute the type unless it is non-null as we don't want 845 // to cause class loading. 846 mirror::Object* value = field->GetObj(obj); 847 if (value == NULL) { 848 os << StringPrintf("null %s\n", PrettyDescriptor(descriptor).c_str()); 849 } else { 850 // Grab the field type without causing resolution. 851 mirror::Class* field_type = fh.GetType(false); 852 if (field_type != NULL) { 853 PrettyObjectValue(os, field_type, value); 854 } else { 855 os << StringPrintf("%p %s\n", value, PrettyDescriptor(descriptor).c_str()); 856 } 857 } 858 } 859 } 860 861 static void DumpFields(std::ostream& os, mirror::Object* obj, mirror::Class* klass) 862 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 863 mirror::Class* super = klass->GetSuperClass(); 864 if (super != NULL) { 865 DumpFields(os, obj, super); 866 } 867 mirror::ObjectArray<mirror::ArtField>* fields = klass->GetIFields(); 868 if (fields != NULL) { 869 for (int32_t i = 0; i < fields->GetLength(); i++) { 870 mirror::ArtField* field = fields->Get(i); 871 PrintField(os, field, obj); 872 } 873 } 874 } 875 876 bool InDumpSpace(const mirror::Object* object) { 877 return image_space_.Contains(object); 878 } 879 880 const void* GetOatCodeBegin(mirror::ArtMethod* m) 881 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 882 const void* code = m->GetEntryPointFromCompiledCode(); 883 if (code == GetResolutionTrampoline(Runtime::Current()->GetClassLinker())) { 884 code = oat_dumper_->GetOatCode(m); 885 } 886 if (oat_dumper_->GetInstructionSet() == kThumb2) { 887 code = reinterpret_cast<void*>(reinterpret_cast<uint32_t>(code) & ~0x1); 888 } 889 return code; 890 } 891 892 uint32_t GetOatCodeSize(mirror::ArtMethod* m) 893 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 894 const uint32_t* oat_code_begin = reinterpret_cast<const uint32_t*>(GetOatCodeBegin(m)); 895 if (oat_code_begin == NULL) { 896 return 0; 897 } 898 return oat_code_begin[-1]; 899 } 900 901 const void* GetOatCodeEnd(mirror::ArtMethod* m) 902 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 903 const uint8_t* oat_code_begin = reinterpret_cast<const uint8_t*>(GetOatCodeBegin(m)); 904 if (oat_code_begin == NULL) { 905 return NULL; 906 } 907 return oat_code_begin + GetOatCodeSize(m); 908 } 909 910 static void Callback(mirror::Object* obj, void* arg) 911 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 912 DCHECK(obj != NULL); 913 DCHECK(arg != NULL); 914 ImageDumper* state = reinterpret_cast<ImageDumper*>(arg); 915 if (!state->InDumpSpace(obj)) { 916 return; 917 } 918 919 size_t object_bytes = obj->SizeOf(); 920 size_t alignment_bytes = RoundUp(object_bytes, kObjectAlignment) - object_bytes; 921 state->stats_.object_bytes += object_bytes; 922 state->stats_.alignment_bytes += alignment_bytes; 923 924 std::ostream& os = *state->os_; 925 mirror::Class* obj_class = obj->GetClass(); 926 if (obj_class->IsArrayClass()) { 927 os << StringPrintf("%p: %s length:%d\n", obj, PrettyDescriptor(obj_class).c_str(), 928 obj->AsArray()->GetLength()); 929 } else if (obj->IsClass()) { 930 mirror::Class* klass = obj->AsClass(); 931 os << StringPrintf("%p: java.lang.Class \"%s\" (", obj, PrettyDescriptor(klass).c_str()) 932 << klass->GetStatus() << ")\n"; 933 } else if (obj->IsArtField()) { 934 os << StringPrintf("%p: java.lang.reflect.ArtField %s\n", obj, 935 PrettyField(obj->AsArtField()).c_str()); 936 } else if (obj->IsArtMethod()) { 937 os << StringPrintf("%p: java.lang.reflect.ArtMethod %s\n", obj, 938 PrettyMethod(obj->AsArtMethod()).c_str()); 939 } else if (obj_class->IsStringClass()) { 940 os << StringPrintf("%p: java.lang.String %s\n", obj, 941 PrintableString(obj->AsString()->ToModifiedUtf8()).c_str()); 942 } else { 943 os << StringPrintf("%p: %s\n", obj, PrettyDescriptor(obj_class).c_str()); 944 } 945 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 946 std::ostream indent_os(&indent_filter); 947 DumpFields(indent_os, obj, obj_class); 948 if (obj->IsObjectArray()) { 949 mirror::ObjectArray<mirror::Object>* obj_array = obj->AsObjectArray<mirror::Object>(); 950 int32_t length = obj_array->GetLength(); 951 for (int32_t i = 0; i < length; i++) { 952 mirror::Object* value = obj_array->Get(i); 953 size_t run = 0; 954 for (int32_t j = i + 1; j < length; j++) { 955 if (value == obj_array->Get(j)) { 956 run++; 957 } else { 958 break; 959 } 960 } 961 if (run == 0) { 962 indent_os << StringPrintf("%d: ", i); 963 } else { 964 indent_os << StringPrintf("%d to %zd: ", i, i + run); 965 i = i + run; 966 } 967 mirror::Class* value_class = value == NULL ? obj_class->GetComponentType() : value->GetClass(); 968 PrettyObjectValue(indent_os, value_class, value); 969 } 970 } else if (obj->IsClass()) { 971 mirror::ObjectArray<mirror::ArtField>* sfields = obj->AsClass()->GetSFields(); 972 if (sfields != NULL) { 973 indent_os << "STATICS:\n"; 974 Indenter indent2_filter(indent_os.rdbuf(), kIndentChar, kIndentBy1Count); 975 std::ostream indent2_os(&indent2_filter); 976 for (int32_t i = 0; i < sfields->GetLength(); i++) { 977 mirror::ArtField* field = sfields->Get(i); 978 PrintField(indent2_os, field, field->GetDeclaringClass()); 979 } 980 } 981 } else if (obj->IsArtMethod()) { 982 mirror::ArtMethod* method = obj->AsArtMethod(); 983 if (method->IsNative()) { 984 DCHECK(method->GetNativeGcMap() == NULL) << PrettyMethod(method); 985 DCHECK(method->GetMappingTable() == NULL) << PrettyMethod(method); 986 bool first_occurrence; 987 const void* oat_code = state->GetOatCodeBegin(method); 988 uint32_t oat_code_size = state->GetOatCodeSize(method); 989 state->ComputeOatSize(oat_code, &first_occurrence); 990 if (first_occurrence) { 991 state->stats_.native_to_managed_code_bytes += oat_code_size; 992 } 993 if (oat_code != method->GetEntryPointFromCompiledCode()) { 994 indent_os << StringPrintf("OAT CODE: %p\n", oat_code); 995 } 996 } else if (method->IsAbstract() || method->IsCalleeSaveMethod() || 997 method->IsResolutionMethod() || MethodHelper(method).IsClassInitializer()) { 998 DCHECK(method->GetNativeGcMap() == NULL) << PrettyMethod(method); 999 DCHECK(method->GetMappingTable() == NULL) << PrettyMethod(method); 1000 } else { 1001 // TODO: we check there is a GC map here, we may not have a GC map if the code is pointing 1002 // to the quick/portable to interpreter bridge. 1003 CHECK(method->GetNativeGcMap() != NULL) << PrettyMethod(method); 1004 1005 const DexFile::CodeItem* code_item = MethodHelper(method).GetCodeItem(); 1006 size_t dex_instruction_bytes = code_item->insns_size_in_code_units_ * 2; 1007 state->stats_.dex_instruction_bytes += dex_instruction_bytes; 1008 1009 bool first_occurrence; 1010 size_t gc_map_bytes = state->ComputeOatSize(method->GetNativeGcMap(), &first_occurrence); 1011 if (first_occurrence) { 1012 state->stats_.gc_map_bytes += gc_map_bytes; 1013 } 1014 1015 size_t pc_mapping_table_bytes = 1016 state->ComputeOatSize(method->GetMappingTable(), &first_occurrence); 1017 if (first_occurrence) { 1018 state->stats_.pc_mapping_table_bytes += pc_mapping_table_bytes; 1019 } 1020 1021 size_t vmap_table_bytes = 1022 state->ComputeOatSize(method->GetVmapTable(), &first_occurrence); 1023 if (first_occurrence) { 1024 state->stats_.vmap_table_bytes += vmap_table_bytes; 1025 } 1026 1027 const void* oat_code_begin = state->GetOatCodeBegin(method); 1028 const void* oat_code_end = state->GetOatCodeEnd(method); 1029 uint32_t oat_code_size = state->GetOatCodeSize(method); 1030 state->ComputeOatSize(oat_code_begin, &first_occurrence); 1031 if (first_occurrence) { 1032 state->stats_.managed_code_bytes += oat_code_size; 1033 if (method->IsConstructor()) { 1034 if (method->IsStatic()) { 1035 state->stats_.class_initializer_code_bytes += oat_code_size; 1036 } else if (dex_instruction_bytes > kLargeConstructorDexBytes) { 1037 state->stats_.large_initializer_code_bytes += oat_code_size; 1038 } 1039 } else if (dex_instruction_bytes > kLargeMethodDexBytes) { 1040 state->stats_.large_method_code_bytes += oat_code_size; 1041 } 1042 } 1043 state->stats_.managed_code_bytes_ignoring_deduplication += oat_code_size; 1044 1045 indent_os << StringPrintf("OAT CODE: %p-%p\n", oat_code_begin, oat_code_end); 1046 indent_os << StringPrintf("SIZE: Dex Instructions=%zd GC=%zd Mapping=%zd\n", 1047 dex_instruction_bytes, gc_map_bytes, pc_mapping_table_bytes); 1048 1049 size_t total_size = dex_instruction_bytes + gc_map_bytes + pc_mapping_table_bytes + 1050 vmap_table_bytes + oat_code_size + object_bytes; 1051 1052 double expansion = 1053 static_cast<double>(oat_code_size) / static_cast<double>(dex_instruction_bytes); 1054 state->stats_.ComputeOutliers(total_size, expansion, method); 1055 } 1056 } 1057 state->stats_.Update(ClassHelper(obj_class).GetDescriptor(), object_bytes); 1058 } 1059 1060 std::set<const void*> already_seen_; 1061 // Compute the size of the given data within the oat file and whether this is the first time 1062 // this data has been requested 1063 size_t ComputeOatSize(const void* oat_data, bool* first_occurrence) { 1064 if (already_seen_.count(oat_data) == 0) { 1065 *first_occurrence = true; 1066 already_seen_.insert(oat_data); 1067 } else { 1068 *first_occurrence = false; 1069 } 1070 return oat_dumper_->ComputeSize(oat_data); 1071 } 1072 1073 public: 1074 struct Stats { 1075 size_t oat_file_bytes; 1076 size_t file_bytes; 1077 1078 size_t header_bytes; 1079 size_t object_bytes; 1080 size_t bitmap_bytes; 1081 size_t alignment_bytes; 1082 1083 size_t managed_code_bytes; 1084 size_t managed_code_bytes_ignoring_deduplication; 1085 size_t managed_to_native_code_bytes; 1086 size_t native_to_managed_code_bytes; 1087 size_t class_initializer_code_bytes; 1088 size_t large_initializer_code_bytes; 1089 size_t large_method_code_bytes; 1090 1091 size_t gc_map_bytes; 1092 size_t pc_mapping_table_bytes; 1093 size_t vmap_table_bytes; 1094 1095 size_t dex_instruction_bytes; 1096 1097 std::vector<mirror::ArtMethod*> method_outlier; 1098 std::vector<size_t> method_outlier_size; 1099 std::vector<double> method_outlier_expansion; 1100 std::vector<std::pair<std::string, size_t> > oat_dex_file_sizes; 1101 1102 explicit Stats() 1103 : oat_file_bytes(0), 1104 file_bytes(0), 1105 header_bytes(0), 1106 object_bytes(0), 1107 bitmap_bytes(0), 1108 alignment_bytes(0), 1109 managed_code_bytes(0), 1110 managed_code_bytes_ignoring_deduplication(0), 1111 managed_to_native_code_bytes(0), 1112 native_to_managed_code_bytes(0), 1113 class_initializer_code_bytes(0), 1114 large_initializer_code_bytes(0), 1115 large_method_code_bytes(0), 1116 gc_map_bytes(0), 1117 pc_mapping_table_bytes(0), 1118 vmap_table_bytes(0), 1119 dex_instruction_bytes(0) {} 1120 1121 struct SizeAndCount { 1122 SizeAndCount(size_t bytes, size_t count) : bytes(bytes), count(count) {} 1123 size_t bytes; 1124 size_t count; 1125 }; 1126 typedef SafeMap<std::string, SizeAndCount> SizeAndCountTable; 1127 SizeAndCountTable sizes_and_counts; 1128 1129 void Update(const std::string& descriptor, size_t object_bytes) { 1130 SizeAndCountTable::iterator it = sizes_and_counts.find(descriptor); 1131 if (it != sizes_and_counts.end()) { 1132 it->second.bytes += object_bytes; 1133 it->second.count += 1; 1134 } else { 1135 sizes_and_counts.Put(descriptor, SizeAndCount(object_bytes, 1)); 1136 } 1137 } 1138 1139 double PercentOfOatBytes(size_t size) { 1140 return (static_cast<double>(size) / static_cast<double>(oat_file_bytes)) * 100; 1141 } 1142 1143 double PercentOfFileBytes(size_t size) { 1144 return (static_cast<double>(size) / static_cast<double>(file_bytes)) * 100; 1145 } 1146 1147 double PercentOfObjectBytes(size_t size) { 1148 return (static_cast<double>(size) / static_cast<double>(object_bytes)) * 100; 1149 } 1150 1151 void ComputeOutliers(size_t total_size, double expansion, mirror::ArtMethod* method) { 1152 method_outlier_size.push_back(total_size); 1153 method_outlier_expansion.push_back(expansion); 1154 method_outlier.push_back(method); 1155 } 1156 1157 void DumpOutliers(std::ostream& os) 1158 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1159 size_t sum_of_sizes = 0; 1160 size_t sum_of_sizes_squared = 0; 1161 size_t sum_of_expansion = 0; 1162 size_t sum_of_expansion_squared = 0; 1163 size_t n = method_outlier_size.size(); 1164 for (size_t i = 0; i < n; i++) { 1165 size_t cur_size = method_outlier_size[i]; 1166 sum_of_sizes += cur_size; 1167 sum_of_sizes_squared += cur_size * cur_size; 1168 double cur_expansion = method_outlier_expansion[i]; 1169 sum_of_expansion += cur_expansion; 1170 sum_of_expansion_squared += cur_expansion * cur_expansion; 1171 } 1172 size_t size_mean = sum_of_sizes / n; 1173 size_t size_variance = (sum_of_sizes_squared - sum_of_sizes * size_mean) / (n - 1); 1174 double expansion_mean = sum_of_expansion / n; 1175 double expansion_variance = 1176 (sum_of_expansion_squared - sum_of_expansion * expansion_mean) / (n - 1); 1177 1178 // Dump methods whose size is a certain number of standard deviations from the mean 1179 size_t dumped_values = 0; 1180 size_t skipped_values = 0; 1181 for (size_t i = 100; i > 0; i--) { // i is the current number of standard deviations 1182 size_t cur_size_variance = i * i * size_variance; 1183 bool first = true; 1184 for (size_t j = 0; j < n; j++) { 1185 size_t cur_size = method_outlier_size[j]; 1186 if (cur_size > size_mean) { 1187 size_t cur_var = cur_size - size_mean; 1188 cur_var = cur_var * cur_var; 1189 if (cur_var > cur_size_variance) { 1190 if (dumped_values > 20) { 1191 if (i == 1) { 1192 skipped_values++; 1193 } else { 1194 i = 2; // jump to counting for 1 standard deviation 1195 break; 1196 } 1197 } else { 1198 if (first) { 1199 os << "\nBig methods (size > " << i << " standard deviations the norm):\n"; 1200 first = false; 1201 } 1202 os << PrettyMethod(method_outlier[j]) << " requires storage of " 1203 << PrettySize(cur_size) << "\n"; 1204 method_outlier_size[j] = 0; // don't consider this method again 1205 dumped_values++; 1206 } 1207 } 1208 } 1209 } 1210 } 1211 if (skipped_values > 0) { 1212 os << "... skipped " << skipped_values 1213 << " methods with size > 1 standard deviation from the norm\n"; 1214 } 1215 os << std::flush; 1216 1217 // Dump methods whose expansion is a certain number of standard deviations from the mean 1218 dumped_values = 0; 1219 skipped_values = 0; 1220 for (size_t i = 10; i > 0; i--) { // i is the current number of standard deviations 1221 double cur_expansion_variance = i * i * expansion_variance; 1222 bool first = true; 1223 for (size_t j = 0; j < n; j++) { 1224 double cur_expansion = method_outlier_expansion[j]; 1225 if (cur_expansion > expansion_mean) { 1226 size_t cur_var = cur_expansion - expansion_mean; 1227 cur_var = cur_var * cur_var; 1228 if (cur_var > cur_expansion_variance) { 1229 if (dumped_values > 20) { 1230 if (i == 1) { 1231 skipped_values++; 1232 } else { 1233 i = 2; // jump to counting for 1 standard deviation 1234 break; 1235 } 1236 } else { 1237 if (first) { 1238 os << "\nLarge expansion methods (size > " << i 1239 << " standard deviations the norm):\n"; 1240 first = false; 1241 } 1242 os << PrettyMethod(method_outlier[j]) << " expanded code by " 1243 << cur_expansion << "\n"; 1244 method_outlier_expansion[j] = 0.0; // don't consider this method again 1245 dumped_values++; 1246 } 1247 } 1248 } 1249 } 1250 } 1251 if (skipped_values > 0) { 1252 os << "... skipped " << skipped_values 1253 << " methods with expansion > 1 standard deviation from the norm\n"; 1254 } 1255 os << "\n" << std::flush; 1256 } 1257 1258 void Dump(std::ostream& os) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1259 { 1260 os << "art_file_bytes = " << PrettySize(file_bytes) << "\n\n" 1261 << "art_file_bytes = header_bytes + object_bytes + alignment_bytes\n"; 1262 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 1263 std::ostream indent_os(&indent_filter); 1264 indent_os << StringPrintf("header_bytes = %8zd (%2.0f%% of art file bytes)\n" 1265 "object_bytes = %8zd (%2.0f%% of art file bytes)\n" 1266 "bitmap_bytes = %8zd (%2.0f%% of art file bytes)\n" 1267 "alignment_bytes = %8zd (%2.0f%% of art file bytes)\n\n", 1268 header_bytes, PercentOfFileBytes(header_bytes), 1269 object_bytes, PercentOfFileBytes(object_bytes), 1270 bitmap_bytes, PercentOfFileBytes(bitmap_bytes), 1271 alignment_bytes, PercentOfFileBytes(alignment_bytes)) 1272 << std::flush; 1273 CHECK_EQ(file_bytes, bitmap_bytes + header_bytes + object_bytes + alignment_bytes); 1274 } 1275 1276 os << "object_bytes breakdown:\n"; 1277 size_t object_bytes_total = 0; 1278 for (const auto& sizes_and_count : sizes_and_counts) { 1279 const std::string& descriptor(sizes_and_count.first); 1280 double average = static_cast<double>(sizes_and_count.second.bytes) / 1281 static_cast<double>(sizes_and_count.second.count); 1282 double percent = PercentOfObjectBytes(sizes_and_count.second.bytes); 1283 os << StringPrintf("%32s %8zd bytes %6zd instances " 1284 "(%4.0f bytes/instance) %2.0f%% of object_bytes\n", 1285 descriptor.c_str(), sizes_and_count.second.bytes, 1286 sizes_and_count.second.count, average, percent); 1287 object_bytes_total += sizes_and_count.second.bytes; 1288 } 1289 os << "\n" << std::flush; 1290 CHECK_EQ(object_bytes, object_bytes_total); 1291 1292 os << StringPrintf("oat_file_bytes = %8zd\n" 1293 "managed_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1294 "managed_to_native_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1295 "native_to_managed_code_bytes = %8zd (%2.0f%% of oat file bytes)\n\n" 1296 "class_initializer_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1297 "large_initializer_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1298 "large_method_code_bytes = %8zd (%2.0f%% of oat file bytes)\n\n", 1299 oat_file_bytes, 1300 managed_code_bytes, PercentOfOatBytes(managed_code_bytes), 1301 managed_to_native_code_bytes, PercentOfOatBytes(managed_to_native_code_bytes), 1302 native_to_managed_code_bytes, PercentOfOatBytes(native_to_managed_code_bytes), 1303 class_initializer_code_bytes, PercentOfOatBytes(class_initializer_code_bytes), 1304 large_initializer_code_bytes, PercentOfOatBytes(large_initializer_code_bytes), 1305 large_method_code_bytes, PercentOfOatBytes(large_method_code_bytes)) 1306 << "DexFile sizes:\n"; 1307 for (const std::pair<std::string, size_t>& oat_dex_file_size : oat_dex_file_sizes) { 1308 os << StringPrintf("%s = %zd (%2.0f%% of oat file bytes)\n", 1309 oat_dex_file_size.first.c_str(), oat_dex_file_size.second, 1310 PercentOfOatBytes(oat_dex_file_size.second)); 1311 } 1312 1313 os << "\n" << StringPrintf("gc_map_bytes = %7zd (%2.0f%% of oat file bytes)\n" 1314 "pc_mapping_table_bytes = %7zd (%2.0f%% of oat file bytes)\n" 1315 "vmap_table_bytes = %7zd (%2.0f%% of oat file bytes)\n\n", 1316 gc_map_bytes, PercentOfOatBytes(gc_map_bytes), 1317 pc_mapping_table_bytes, PercentOfOatBytes(pc_mapping_table_bytes), 1318 vmap_table_bytes, PercentOfOatBytes(vmap_table_bytes)) 1319 << std::flush; 1320 1321 os << StringPrintf("dex_instruction_bytes = %zd\n", dex_instruction_bytes) 1322 << StringPrintf("managed_code_bytes expansion = %.2f (ignoring deduplication %.2f)\n\n", 1323 static_cast<double>(managed_code_bytes) / static_cast<double>(dex_instruction_bytes), 1324 static_cast<double>(managed_code_bytes_ignoring_deduplication) / 1325 static_cast<double>(dex_instruction_bytes)) 1326 << std::flush; 1327 1328 DumpOutliers(os); 1329 } 1330 } stats_; 1331 1332 private: 1333 enum { 1334 // Number of bytes for a constructor to be considered large. Based on the 1000 basic block 1335 // threshold, we assume 2 bytes per instruction and 2 instructions per block. 1336 kLargeConstructorDexBytes = 4000, 1337 // Number of bytes for a method to be considered large. Based on the 4000 basic block 1338 // threshold, we assume 2 bytes per instruction and 2 instructions per block. 1339 kLargeMethodDexBytes = 16000 1340 }; 1341 UniquePtr<OatDumper> oat_dumper_; 1342 std::ostream* os_; 1343 const std::string image_filename_; 1344 const std::string host_prefix_; 1345 gc::space::ImageSpace& image_space_; 1346 const ImageHeader& image_header_; 1347 1348 DISALLOW_COPY_AND_ASSIGN(ImageDumper); 1349 }; 1350 1351 static int oatdump(int argc, char** argv) { 1352 InitLogging(argv); 1353 1354 // Skip over argv[0]. 1355 argv++; 1356 argc--; 1357 1358 if (argc == 0) { 1359 fprintf(stderr, "No arguments specified\n"); 1360 usage(); 1361 } 1362 1363 const char* oat_filename = NULL; 1364 const char* image_filename = NULL; 1365 const char* boot_image_filename = NULL; 1366 std::string elf_filename_prefix; 1367 UniquePtr<std::string> host_prefix; 1368 std::ostream* os = &std::cout; 1369 UniquePtr<std::ofstream> out; 1370 1371 for (int i = 0; i < argc; i++) { 1372 const StringPiece option(argv[i]); 1373 if (option.starts_with("--oat-file=")) { 1374 oat_filename = option.substr(strlen("--oat-file=")).data(); 1375 } else if (option.starts_with("--image=")) { 1376 image_filename = option.substr(strlen("--image=")).data(); 1377 } else if (option.starts_with("--boot-image=")) { 1378 boot_image_filename = option.substr(strlen("--boot-image=")).data(); 1379 } else if (option.starts_with("--host-prefix=")) { 1380 host_prefix.reset(new std::string(option.substr(strlen("--host-prefix=")).data())); 1381 } else if (option.starts_with("--output=")) { 1382 const char* filename = option.substr(strlen("--output=")).data(); 1383 out.reset(new std::ofstream(filename)); 1384 if (!out->good()) { 1385 fprintf(stderr, "Failed to open output filename %s\n", filename); 1386 usage(); 1387 } 1388 os = out.get(); 1389 } else { 1390 fprintf(stderr, "Unknown argument %s\n", option.data()); 1391 usage(); 1392 } 1393 } 1394 1395 if (image_filename == NULL && oat_filename == NULL) { 1396 fprintf(stderr, "Either --image or --oat must be specified\n"); 1397 return EXIT_FAILURE; 1398 } 1399 1400 if (image_filename != NULL && oat_filename != NULL) { 1401 fprintf(stderr, "Either --image or --oat must be specified but not both\n"); 1402 return EXIT_FAILURE; 1403 } 1404 1405 if (host_prefix.get() == NULL) { 1406 const char* android_product_out = getenv("ANDROID_PRODUCT_OUT"); 1407 if (android_product_out != NULL) { 1408 host_prefix.reset(new std::string(android_product_out)); 1409 } else { 1410 host_prefix.reset(new std::string("")); 1411 } 1412 } 1413 1414 if (oat_filename != NULL) { 1415 OatFile* oat_file = 1416 OatFile::Open(oat_filename, oat_filename, NULL, false); 1417 if (oat_file == NULL) { 1418 fprintf(stderr, "Failed to open oat file from %s\n", oat_filename); 1419 return EXIT_FAILURE; 1420 } 1421 OatDumper oat_dumper(*host_prefix.get(), *oat_file); 1422 oat_dumper.Dump(*os); 1423 return EXIT_SUCCESS; 1424 } 1425 1426 Runtime::Options options; 1427 std::string image_option; 1428 std::string oat_option; 1429 std::string boot_image_option; 1430 std::string boot_oat_option; 1431 1432 // We are more like a compiler than a run-time. We don't want to execute code. 1433 options.push_back(std::make_pair("compiler", reinterpret_cast<void*>(NULL))); 1434 1435 if (boot_image_filename != NULL) { 1436 boot_image_option += "-Ximage:"; 1437 boot_image_option += boot_image_filename; 1438 options.push_back(std::make_pair(boot_image_option.c_str(), reinterpret_cast<void*>(NULL))); 1439 } 1440 if (image_filename != NULL) { 1441 image_option += "-Ximage:"; 1442 image_option += image_filename; 1443 options.push_back(std::make_pair(image_option.c_str(), reinterpret_cast<void*>(NULL))); 1444 } 1445 1446 if (!host_prefix->empty()) { 1447 options.push_back(std::make_pair("host-prefix", host_prefix->c_str())); 1448 } 1449 1450 if (!Runtime::Create(options, false)) { 1451 fprintf(stderr, "Failed to create runtime\n"); 1452 return EXIT_FAILURE; 1453 } 1454 UniquePtr<Runtime> runtime(Runtime::Current()); 1455 // Runtime::Create acquired the mutator_lock_ that is normally given away when we Runtime::Start, 1456 // give it away now and then switch to a more managable ScopedObjectAccess. 1457 Thread::Current()->TransitionFromRunnableToSuspended(kNative); 1458 ScopedObjectAccess soa(Thread::Current()); 1459 1460 gc::Heap* heap = Runtime::Current()->GetHeap(); 1461 gc::space::ImageSpace* image_space = heap->GetImageSpace(); 1462 CHECK(image_space != NULL); 1463 const ImageHeader& image_header = image_space->GetImageHeader(); 1464 if (!image_header.IsValid()) { 1465 fprintf(stderr, "Invalid image header %s\n", image_filename); 1466 return EXIT_FAILURE; 1467 } 1468 ImageDumper image_dumper(os, image_filename, *host_prefix.get(), *image_space, image_header); 1469 image_dumper.Dump(); 1470 return EXIT_SUCCESS; 1471 } 1472 1473 } // namespace art 1474 1475 int main(int argc, char** argv) { 1476 return art::oatdump(argc, argv); 1477 } 1478
