oatdump.cc revision 6f277751ec5bfc0d7469b2cc7f7134e9032593f1
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 54namespace art { 55 56static 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 87const char* image_roots_descriptions_[] = { 88 "kResolutionMethod", 89 "kCalleeSaveMethod", 90 "kRefsOnlySaveMethod", 91 "kRefsAndArgsSaveMethod", 92 "kOatLocation", 93 "kDexCaches", 94 "kClassRoots", 95}; 96 97class 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() << ")" 260 // TODO: JACK CLASS ACCESS (HACK TO BE REMOVED) 261 << ( (class_def.access_flags_ & kAccClassJack) == kAccClassJack ? " (Jack)" : "" ) 262 << "\n"; 263 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 264 std::ostream indented_os(&indent_filter); 265 DumpOatClass(indented_os, *oat_class.get(), *(dex_file.get()), class_def); 266 } 267 268 os << std::flush; 269 } 270 271 static void SkipAllFields(ClassDataItemIterator& it) { 272 while (it.HasNextStaticField()) { 273 it.Next(); 274 } 275 while (it.HasNextInstanceField()) { 276 it.Next(); 277 } 278 } 279 280 void DumpOatClass(std::ostream& os, const OatFile::OatClass& oat_class, const DexFile& dex_file, 281 const DexFile::ClassDef& class_def) { 282 const byte* class_data = dex_file.GetClassData(class_def); 283 if (class_data == NULL) { // empty class such as a marker interface? 284 return; 285 } 286 ClassDataItemIterator it(dex_file, class_data); 287 SkipAllFields(it); 288 uint32_t class_method_idx = 0; 289 while (it.HasNextDirectMethod()) { 290 const OatFile::OatMethod oat_method = oat_class.GetOatMethod(class_method_idx); 291 DumpOatMethod(os, class_def, class_method_idx, oat_method, dex_file, 292 it.GetMemberIndex(), it.GetMethodCodeItem(), it.GetMemberAccessFlags()); 293 class_method_idx++; 294 it.Next(); 295 } 296 while (it.HasNextVirtualMethod()) { 297 const OatFile::OatMethod oat_method = oat_class.GetOatMethod(class_method_idx); 298 DumpOatMethod(os, class_def, class_method_idx, oat_method, dex_file, 299 it.GetMemberIndex(), it.GetMethodCodeItem(), it.GetMemberAccessFlags()); 300 class_method_idx++; 301 it.Next(); 302 } 303 DCHECK(!it.HasNext()); 304 os << std::flush; 305 } 306 307 void DumpOatMethod(std::ostream& os, const DexFile::ClassDef& class_def, 308 uint32_t class_method_index, 309 const OatFile::OatMethod& oat_method, const DexFile& dex_file, 310 uint32_t dex_method_idx, const DexFile::CodeItem* code_item, 311 uint32_t method_access_flags) { 312 os << StringPrintf("%d: %s (dex_method_idx=%d)\n", 313 class_method_index, PrettyMethod(dex_method_idx, dex_file, true).c_str(), 314 dex_method_idx); 315 Indenter indent1_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 316 std::ostream indent1_os(&indent1_filter); 317 { 318 indent1_os << "DEX CODE:\n"; 319 Indenter indent2_filter(indent1_os.rdbuf(), kIndentChar, kIndentBy1Count); 320 std::ostream indent2_os(&indent2_filter); 321 DumpDexCode(indent2_os, dex_file, code_item); 322 } 323 if (Runtime::Current() != NULL) { 324 indent1_os << "VERIFIER TYPE ANALYSIS:\n"; 325 Indenter indent2_filter(indent1_os.rdbuf(), kIndentChar, kIndentBy1Count); 326 std::ostream indent2_os(&indent2_filter); 327 DumpVerifier(indent2_os, dex_method_idx, &dex_file, class_def, code_item, 328 method_access_flags); 329 } 330 { 331 indent1_os << "OAT DATA:\n"; 332 Indenter indent2_filter(indent1_os.rdbuf(), kIndentChar, kIndentBy1Count); 333 std::ostream indent2_os(&indent2_filter); 334 335 indent2_os << StringPrintf("frame_size_in_bytes: %zd\n", oat_method.GetFrameSizeInBytes()); 336 indent2_os << StringPrintf("core_spill_mask: 0x%08x ", oat_method.GetCoreSpillMask()); 337 DumpSpillMask(indent2_os, oat_method.GetCoreSpillMask(), false); 338 indent2_os << StringPrintf("\nfp_spill_mask: 0x%08x ", oat_method.GetFpSpillMask()); 339 DumpSpillMask(indent2_os, oat_method.GetFpSpillMask(), true); 340 indent2_os << StringPrintf("\nvmap_table: %p (offset=0x%08x)\n", 341 oat_method.GetVmapTable(), oat_method.GetVmapTableOffset()); 342 DumpVmap(indent2_os, oat_method); 343 indent2_os << StringPrintf("mapping_table: %p (offset=0x%08x)\n", 344 oat_method.GetMappingTable(), oat_method.GetMappingTableOffset()); 345 const bool kDumpRawMappingTable = false; 346 if (kDumpRawMappingTable) { 347 Indenter indent3_filter(indent2_os.rdbuf(), kIndentChar, kIndentBy1Count); 348 std::ostream indent3_os(&indent3_filter); 349 DumpMappingTable(indent3_os, oat_method); 350 } 351 indent2_os << StringPrintf("gc_map: %p (offset=0x%08x)\n", 352 oat_method.GetNativeGcMap(), oat_method.GetNativeGcMapOffset()); 353 const bool kDumpRawGcMap = false; 354 if (kDumpRawGcMap) { 355 Indenter indent3_filter(indent2_os.rdbuf(), kIndentChar, kIndentBy1Count); 356 std::ostream indent3_os(&indent3_filter); 357 DumpGcMap(indent3_os, oat_method, code_item); 358 } 359 } 360 { 361 indent1_os << StringPrintf("CODE: %p (offset=0x%08x size=%d)%s\n", 362 oat_method.GetCode(), 363 oat_method.GetCodeOffset(), 364 oat_method.GetCodeSize(), 365 oat_method.GetCode() != NULL ? "..." : ""); 366 Indenter indent2_filter(indent1_os.rdbuf(), kIndentChar, kIndentBy1Count); 367 std::ostream indent2_os(&indent2_filter); 368 DumpCode(indent2_os, oat_method, dex_method_idx, &dex_file, class_def, code_item, 369 method_access_flags); 370 } 371 } 372 373 void DumpSpillMask(std::ostream& os, uint32_t spill_mask, bool is_float) { 374 if (spill_mask == 0) { 375 return; 376 } 377 os << "("; 378 for (size_t i = 0; i < 32; i++) { 379 if ((spill_mask & (1 << i)) != 0) { 380 if (is_float) { 381 os << "fr" << i; 382 } else { 383 os << "r" << i; 384 } 385 spill_mask ^= 1 << i; // clear bit 386 if (spill_mask != 0) { 387 os << ", "; 388 } else { 389 break; 390 } 391 } 392 } 393 os << ")"; 394 } 395 396 void DumpVmap(std::ostream& os, const OatFile::OatMethod& oat_method) { 397 const uint8_t* raw_table = oat_method.GetVmapTable(); 398 if (raw_table != NULL) { 399 const VmapTable vmap_table(raw_table); 400 bool first = true; 401 bool processing_fp = false; 402 uint32_t spill_mask = oat_method.GetCoreSpillMask(); 403 for (size_t i = 0; i < vmap_table.Size(); i++) { 404 uint16_t dex_reg = vmap_table[i]; 405 uint32_t cpu_reg = vmap_table.ComputeRegister(spill_mask, i, 406 processing_fp ? kFloatVReg : kIntVReg); 407 os << (first ? "v" : ", v") << dex_reg; 408 if (!processing_fp) { 409 os << "/r" << cpu_reg; 410 } else { 411 os << "/fr" << cpu_reg; 412 } 413 first = false; 414 if (!processing_fp && dex_reg == 0xFFFF) { 415 processing_fp = true; 416 spill_mask = oat_method.GetFpSpillMask(); 417 } 418 } 419 os << "\n"; 420 } 421 } 422 423 void DescribeVReg(std::ostream& os, const OatFile::OatMethod& oat_method, 424 const DexFile::CodeItem* code_item, size_t reg, VRegKind kind) { 425 const uint8_t* raw_table = oat_method.GetVmapTable(); 426 if (raw_table != NULL) { 427 const VmapTable vmap_table(raw_table); 428 uint32_t vmap_offset; 429 if (vmap_table.IsInContext(reg, kind, &vmap_offset)) { 430 bool is_float = (kind == kFloatVReg) || (kind == kDoubleLoVReg) || (kind == kDoubleHiVReg); 431 uint32_t spill_mask = is_float ? oat_method.GetFpSpillMask() 432 : oat_method.GetCoreSpillMask(); 433 os << (is_float ? "fr" : "r") << vmap_table.ComputeRegister(spill_mask, vmap_offset, kind); 434 } else { 435 uint32_t offset = StackVisitor::GetVRegOffset(code_item, oat_method.GetCoreSpillMask(), 436 oat_method.GetFpSpillMask(), 437 oat_method.GetFrameSizeInBytes(), reg); 438 os << "[sp + #" << offset << "]"; 439 } 440 } 441 } 442 443 void DumpGcMap(std::ostream& os, const OatFile::OatMethod& oat_method, 444 const DexFile::CodeItem* code_item) { 445 const uint8_t* gc_map_raw = oat_method.GetNativeGcMap(); 446 if (gc_map_raw == NULL) { 447 return; 448 } 449 NativePcOffsetToReferenceMap map(gc_map_raw); 450 const void* code = oat_method.GetCode(); 451 for (size_t entry = 0; entry < map.NumEntries(); entry++) { 452 const uint8_t* native_pc = reinterpret_cast<const uint8_t*>(code) + 453 map.GetNativePcOffset(entry); 454 os << StringPrintf("%p", native_pc); 455 size_t num_regs = map.RegWidth() * 8; 456 const uint8_t* reg_bitmap = map.GetBitMap(entry); 457 bool first = true; 458 for (size_t reg = 0; reg < num_regs; reg++) { 459 if (((reg_bitmap[reg / 8] >> (reg % 8)) & 0x01) != 0) { 460 if (first) { 461 os << " v" << reg << " ("; 462 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 463 os << ")"; 464 first = false; 465 } else { 466 os << ", v" << reg << " ("; 467 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 468 os << ")"; 469 } 470 } 471 } 472 os << "\n"; 473 } 474 } 475 476 void DumpMappingTable(std::ostream& os, const OatFile::OatMethod& oat_method) { 477 const void* code = oat_method.GetCode(); 478 if (code == NULL) { 479 return; 480 } 481 MappingTable table(oat_method.GetMappingTable()); 482 if (table.TotalSize() != 0) { 483 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 484 std::ostream indent_os(&indent_filter); 485 if (table.PcToDexSize() != 0) { 486 typedef MappingTable::PcToDexIterator It; 487 os << "suspend point mappings {\n"; 488 for (It cur = table.PcToDexBegin(), end = table.PcToDexEnd(); cur != end; ++cur) { 489 indent_os << StringPrintf("0x%04x -> 0x%04x\n", cur.NativePcOffset(), cur.DexPc()); 490 } 491 os << "}\n"; 492 } 493 if (table.DexToPcSize() != 0) { 494 typedef MappingTable::DexToPcIterator It; 495 os << "catch entry mappings {\n"; 496 for (It cur = table.DexToPcBegin(), end = table.DexToPcEnd(); cur != end; ++cur) { 497 indent_os << StringPrintf("0x%04x -> 0x%04x\n", cur.NativePcOffset(), cur.DexPc()); 498 } 499 os << "}\n"; 500 } 501 } 502 } 503 504 uint32_t DumpMappingAtOffset(std::ostream& os, const OatFile::OatMethod& oat_method, 505 size_t offset, bool suspend_point_mapping) { 506 MappingTable table(oat_method.GetMappingTable()); 507 if (suspend_point_mapping && table.PcToDexSize() > 0) { 508 typedef MappingTable::PcToDexIterator It; 509 for (It cur = table.PcToDexBegin(), end = table.PcToDexEnd(); cur != end; ++cur) { 510 if (offset == cur.NativePcOffset()) { 511 os << StringPrintf("suspend point dex PC: 0x%04x\n", cur.DexPc()); 512 return cur.DexPc(); 513 } 514 } 515 } else if (!suspend_point_mapping && table.DexToPcSize() > 0) { 516 typedef MappingTable::DexToPcIterator It; 517 for (It cur = table.DexToPcBegin(), end = table.DexToPcEnd(); cur != end; ++cur) { 518 if (offset == cur.NativePcOffset()) { 519 os << StringPrintf("catch entry dex PC: 0x%04x\n", cur.DexPc()); 520 return cur.DexPc(); 521 } 522 } 523 } 524 return DexFile::kDexNoIndex; 525 } 526 527 void DumpGcMapAtNativePcOffset(std::ostream& os, const OatFile::OatMethod& oat_method, 528 const DexFile::CodeItem* code_item, size_t native_pc_offset) { 529 const uint8_t* gc_map_raw = oat_method.GetNativeGcMap(); 530 if (gc_map_raw != NULL) { 531 NativePcOffsetToReferenceMap map(gc_map_raw); 532 if (map.HasEntry(native_pc_offset)) { 533 size_t num_regs = map.RegWidth() * 8; 534 const uint8_t* reg_bitmap = map.FindBitMap(native_pc_offset); 535 bool first = true; 536 for (size_t reg = 0; reg < num_regs; reg++) { 537 if (((reg_bitmap[reg / 8] >> (reg % 8)) & 0x01) != 0) { 538 if (first) { 539 os << "GC map objects: v" << reg << " ("; 540 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 541 os << ")"; 542 first = false; 543 } else { 544 os << ", v" << reg << " ("; 545 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 546 os << ")"; 547 } 548 } 549 } 550 if (!first) { 551 os << "\n"; 552 } 553 } 554 } 555 } 556 557 void DumpVRegsAtDexPc(std::ostream& os, const OatFile::OatMethod& oat_method, 558 uint32_t dex_method_idx, const DexFile* dex_file, 559 const DexFile::ClassDef& class_def, const DexFile::CodeItem* code_item, 560 uint32_t method_access_flags, uint32_t dex_pc) { 561 static UniquePtr<verifier::MethodVerifier> verifier; 562 static const DexFile* verified_dex_file = NULL; 563 static uint32_t verified_dex_method_idx = DexFile::kDexNoIndex; 564 if (dex_file != verified_dex_file || verified_dex_method_idx != dex_method_idx) { 565 ScopedObjectAccess soa(Thread::Current()); 566 mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(*dex_file); 567 mirror::ClassLoader* class_loader = NULL; 568 verifier.reset(new verifier::MethodVerifier(dex_file, dex_cache, class_loader, &class_def, 569 code_item, dex_method_idx, NULL, 570 method_access_flags, true, true)); 571 verifier->Verify(); 572 verified_dex_file = dex_file; 573 verified_dex_method_idx = dex_method_idx; 574 } 575 std::vector<int32_t> kinds = verifier->DescribeVRegs(dex_pc); 576 bool first = true; 577 for (size_t reg = 0; reg < code_item->registers_size_; reg++) { 578 VRegKind kind = static_cast<VRegKind>(kinds.at(reg * 2)); 579 if (kind != kUndefined) { 580 if (first) { 581 os << "VRegs: v"; 582 first = false; 583 } else { 584 os << ", v"; 585 } 586 os << reg << " ("; 587 switch (kind) { 588 case kImpreciseConstant: 589 os << "Imprecise Constant: " << kinds.at((reg * 2) + 1) << ", "; 590 DescribeVReg(os, oat_method, code_item, reg, kind); 591 break; 592 case kConstant: 593 os << "Constant: " << kinds.at((reg * 2) + 1); 594 break; 595 default: 596 DescribeVReg(os, oat_method, code_item, reg, kind); 597 break; 598 } 599 os << ")"; 600 } 601 } 602 if (!first) { 603 os << "\n"; 604 } 605 } 606 607 608 void DumpDexCode(std::ostream& os, const DexFile& dex_file, const DexFile::CodeItem* code_item) { 609 if (code_item != NULL) { 610 size_t i = 0; 611 while (i < code_item->insns_size_in_code_units_) { 612 const Instruction* instruction = Instruction::At(&code_item->insns_[i]); 613 os << StringPrintf("0x%04zx: %s\n", i, instruction->DumpString(&dex_file).c_str()); 614 i += instruction->SizeInCodeUnits(); 615 } 616 } 617 } 618 619 void DumpVerifier(std::ostream& os, uint32_t dex_method_idx, const DexFile* dex_file, 620 const DexFile::ClassDef& class_def, const DexFile::CodeItem* code_item, 621 uint32_t method_access_flags) { 622 if ((method_access_flags & kAccNative) == 0) { 623 ScopedObjectAccess soa(Thread::Current()); 624 mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(*dex_file); 625 mirror::ClassLoader* class_loader = NULL; 626 verifier::MethodVerifier::VerifyMethodAndDump(os, dex_method_idx, dex_file, dex_cache, 627 class_loader, &class_def, code_item, NULL, 628 method_access_flags); 629 } 630 } 631 632 void DumpCode(std::ostream& os, const OatFile::OatMethod& oat_method, 633 uint32_t dex_method_idx, const DexFile* dex_file, 634 const DexFile::ClassDef& class_def, const DexFile::CodeItem* code_item, 635 uint32_t method_access_flags) { 636 const void* code = oat_method.GetCode(); 637 size_t code_size = oat_method.GetCodeSize(); 638 if (code == NULL || code_size == 0) { 639 os << "NO CODE!\n"; 640 return; 641 } 642 const uint8_t* native_pc = reinterpret_cast<const uint8_t*>(code); 643 size_t offset = 0; 644 const bool kDumpVRegs = (Runtime::Current() != NULL); 645 while (offset < code_size) { 646 DumpMappingAtOffset(os, oat_method, offset, false); 647 offset += disassembler_->Dump(os, native_pc + offset); 648 uint32_t dex_pc = DumpMappingAtOffset(os, oat_method, offset, true); 649 if (dex_pc != DexFile::kDexNoIndex) { 650 DumpGcMapAtNativePcOffset(os, oat_method, code_item, offset); 651 if (kDumpVRegs) { 652 DumpVRegsAtDexPc(os, oat_method, dex_method_idx, dex_file, class_def, code_item, 653 method_access_flags, dex_pc); 654 } 655 } 656 } 657 } 658 659 const std::string host_prefix_; 660 const OatFile& oat_file_; 661 std::vector<const OatFile::OatDexFile*> oat_dex_files_; 662 std::set<uint32_t> offsets_; 663 UniquePtr<Disassembler> disassembler_; 664}; 665 666class ImageDumper { 667 public: 668 explicit ImageDumper(std::ostream* os, const std::string& image_filename, 669 const std::string& host_prefix, gc::space::ImageSpace& image_space, 670 const ImageHeader& image_header) 671 : os_(os), image_filename_(image_filename), host_prefix_(host_prefix), 672 image_space_(image_space), image_header_(image_header) {} 673 674 void Dump() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 675 std::ostream& os = *os_; 676 os << "MAGIC: " << image_header_.GetMagic() << "\n\n"; 677 678 os << "IMAGE BEGIN: " << reinterpret_cast<void*>(image_header_.GetImageBegin()) << "\n\n"; 679 680 os << "IMAGE BITMAP OFFSET: " << reinterpret_cast<void*>(image_header_.GetImageBitmapOffset()) 681 << " SIZE: " << reinterpret_cast<void*>(image_header_.GetImageBitmapSize()) << "\n\n"; 682 683 os << "OAT CHECKSUM: " << StringPrintf("0x%08x\n\n", image_header_.GetOatChecksum()); 684 685 os << "OAT FILE BEGIN:" << reinterpret_cast<void*>(image_header_.GetOatFileBegin()) << "\n\n"; 686 687 os << "OAT DATA BEGIN:" << reinterpret_cast<void*>(image_header_.GetOatDataBegin()) << "\n\n"; 688 689 os << "OAT DATA END:" << reinterpret_cast<void*>(image_header_.GetOatDataEnd()) << "\n\n"; 690 691 os << "OAT FILE END:" << reinterpret_cast<void*>(image_header_.GetOatFileEnd()) << "\n\n"; 692 693 { 694 os << "ROOTS: " << reinterpret_cast<void*>(image_header_.GetImageRoots()) << "\n"; 695 Indenter indent1_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 696 std::ostream indent1_os(&indent1_filter); 697 CHECK_EQ(arraysize(image_roots_descriptions_), size_t(ImageHeader::kImageRootsMax)); 698 for (int i = 0; i < ImageHeader::kImageRootsMax; i++) { 699 ImageHeader::ImageRoot image_root = static_cast<ImageHeader::ImageRoot>(i); 700 const char* image_root_description = image_roots_descriptions_[i]; 701 mirror::Object* image_root_object = image_header_.GetImageRoot(image_root); 702 indent1_os << StringPrintf("%s: %p\n", image_root_description, image_root_object); 703 if (image_root_object->IsObjectArray()) { 704 Indenter indent2_filter(indent1_os.rdbuf(), kIndentChar, kIndentBy1Count); 705 std::ostream indent2_os(&indent2_filter); 706 // TODO: replace down_cast with AsObjectArray (g++ currently has a problem with this) 707 mirror::ObjectArray<mirror::Object>* image_root_object_array 708 = down_cast<mirror::ObjectArray<mirror::Object>*>(image_root_object); 709 // = image_root_object->AsObjectArray<Object>(); 710 for (int i = 0; i < image_root_object_array->GetLength(); i++) { 711 mirror::Object* value = image_root_object_array->Get(i); 712 if (value != NULL) { 713 indent2_os << i << ": "; 714 PrettyObjectValue(indent2_os, value->GetClass(), value); 715 } else { 716 indent2_os << i << ": null\n"; 717 } 718 } 719 } 720 } 721 } 722 os << "\n"; 723 724 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 725 mirror::Object* oat_location_object = image_header_.GetImageRoot(ImageHeader::kOatLocation); 726 std::string oat_location(oat_location_object->AsString()->ToModifiedUtf8()); 727 os << "OAT LOCATION: " << oat_location; 728 if (!host_prefix_.empty()) { 729 oat_location = host_prefix_ + oat_location; 730 os << " (" << oat_location << ")"; 731 } 732 os << "\n"; 733 const OatFile* oat_file = class_linker->FindOatFileFromOatLocation(oat_location); 734 if (oat_file == NULL) { 735 os << "NOT FOUND\n"; 736 return; 737 } 738 os << "\n"; 739 740 stats_.oat_file_bytes = oat_file->Size(); 741 742 oat_dumper_.reset(new OatDumper(host_prefix_, *oat_file)); 743 744 for (const OatFile::OatDexFile* oat_dex_file : oat_file->GetOatDexFiles()) { 745 CHECK(oat_dex_file != NULL); 746 stats_.oat_dex_file_sizes.push_back(std::make_pair(oat_dex_file->GetDexFileLocation(), 747 oat_dex_file->FileSize())); 748 } 749 750 os << "OBJECTS:\n" << std::flush; 751 752 // Loop through all the image spaces and dump their objects. 753 gc::Heap* heap = Runtime::Current()->GetHeap(); 754 const std::vector<gc::space::ContinuousSpace*>& spaces = heap->GetContinuousSpaces(); 755 Thread* self = Thread::Current(); 756 { 757 WriterMutexLock mu(self, *Locks::heap_bitmap_lock_); 758 heap->FlushAllocStack(); 759 } 760 { 761 std::ostream* saved_os = os_; 762 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 763 std::ostream indent_os(&indent_filter); 764 os_ = &indent_os; 765 ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_); 766 for (const auto& space : spaces) { 767 if (space->IsImageSpace()) { 768 gc::space::ImageSpace* image_space = space->AsImageSpace(); 769 image_space->GetLiveBitmap()->Walk(ImageDumper::Callback, this); 770 indent_os << "\n"; 771 } 772 } 773 // Dump the large objects separately. 774 heap->GetLargeObjectsSpace()->GetLiveObjects()->Walk(ImageDumper::Callback, this); 775 indent_os << "\n"; 776 os_ = saved_os; 777 } 778 os << "STATS:\n" << std::flush; 779 UniquePtr<File> file(OS::OpenFileForReading(image_filename_.c_str())); 780 if (file.get() == NULL) { 781 std::string cache_location(GetDalvikCacheFilenameOrDie(image_filename_)); 782 file.reset(OS::OpenFileForReading(cache_location.c_str())); 783 if (file.get() == NULL) { 784 LOG(WARNING) << "Failed to find image in " << image_filename_ 785 << " and " << cache_location; 786 } 787 } 788 if (file.get() != NULL) { 789 stats_.file_bytes = file->GetLength(); 790 } 791 size_t header_bytes = sizeof(ImageHeader); 792 stats_.header_bytes = header_bytes; 793 size_t alignment_bytes = RoundUp(header_bytes, kObjectAlignment) - header_bytes; 794 stats_.alignment_bytes += alignment_bytes; 795 stats_.alignment_bytes += image_header_.GetImageBitmapOffset() - image_header_.GetImageSize(); 796 stats_.bitmap_bytes += image_header_.GetImageBitmapSize(); 797 stats_.Dump(os); 798 os << "\n"; 799 800 os << std::flush; 801 802 oat_dumper_->Dump(os); 803 } 804 805 private: 806 static void PrettyObjectValue(std::ostream& os, mirror::Class* type, mirror::Object* value) 807 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 808 CHECK(type != NULL); 809 if (value == NULL) { 810 os << StringPrintf("null %s\n", PrettyDescriptor(type).c_str()); 811 } else if (type->IsStringClass()) { 812 mirror::String* string = value->AsString(); 813 os << StringPrintf("%p String: %s\n", string, 814 PrintableString(string->ToModifiedUtf8()).c_str()); 815 } else if (type->IsClassClass()) { 816 mirror::Class* klass = value->AsClass(); 817 os << StringPrintf("%p Class: %s\n", klass, PrettyDescriptor(klass).c_str()); 818 } else if (type->IsArtFieldClass()) { 819 mirror::ArtField* field = value->AsArtField(); 820 os << StringPrintf("%p Field: %s\n", field, PrettyField(field).c_str()); 821 } else if (type->IsArtMethodClass()) { 822 mirror::ArtMethod* method = value->AsArtMethod(); 823 os << StringPrintf("%p Method: %s\n", method, PrettyMethod(method).c_str()); 824 } else { 825 os << StringPrintf("%p %s\n", value, PrettyDescriptor(type).c_str()); 826 } 827 } 828 829 static void PrintField(std::ostream& os, mirror::ArtField* field, mirror::Object* obj) 830 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 831 FieldHelper fh(field); 832 const char* descriptor = fh.GetTypeDescriptor(); 833 os << StringPrintf("%s: ", fh.GetName()); 834 if (descriptor[0] != 'L' && descriptor[0] != '[') { 835 mirror::Class* type = fh.GetType(); 836 if (type->IsPrimitiveLong()) { 837 os << StringPrintf("%lld (0x%llx)\n", field->Get64(obj), field->Get64(obj)); 838 } else if (type->IsPrimitiveDouble()) { 839 os << StringPrintf("%f (%a)\n", field->GetDouble(obj), field->GetDouble(obj)); 840 } else if (type->IsPrimitiveFloat()) { 841 os << StringPrintf("%f (%a)\n", field->GetFloat(obj), field->GetFloat(obj)); 842 } else { 843 DCHECK(type->IsPrimitive()); 844 os << StringPrintf("%d (0x%x)\n", field->Get32(obj), field->Get32(obj)); 845 } 846 } else { 847 // Get the value, don't compute the type unless it is non-null as we don't want 848 // to cause class loading. 849 mirror::Object* value = field->GetObj(obj); 850 if (value == NULL) { 851 os << StringPrintf("null %s\n", PrettyDescriptor(descriptor).c_str()); 852 } else { 853 // Grab the field type without causing resolution. 854 mirror::Class* field_type = fh.GetType(false); 855 if (field_type != NULL) { 856 PrettyObjectValue(os, field_type, value); 857 } else { 858 os << StringPrintf("%p %s\n", value, PrettyDescriptor(descriptor).c_str()); 859 } 860 } 861 } 862 } 863 864 static void DumpFields(std::ostream& os, mirror::Object* obj, mirror::Class* klass) 865 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 866 mirror::Class* super = klass->GetSuperClass(); 867 if (super != NULL) { 868 DumpFields(os, obj, super); 869 } 870 mirror::ObjectArray<mirror::ArtField>* fields = klass->GetIFields(); 871 if (fields != NULL) { 872 for (int32_t i = 0; i < fields->GetLength(); i++) { 873 mirror::ArtField* field = fields->Get(i); 874 PrintField(os, field, obj); 875 } 876 } 877 } 878 879 bool InDumpSpace(const mirror::Object* object) { 880 return image_space_.Contains(object); 881 } 882 883 const void* GetOatCodeBegin(mirror::ArtMethod* m) 884 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 885 const void* code = m->GetEntryPointFromCompiledCode(); 886 if (code == GetResolutionTrampoline(Runtime::Current()->GetClassLinker())) { 887 code = oat_dumper_->GetOatCode(m); 888 } 889 if (oat_dumper_->GetInstructionSet() == kThumb2) { 890 code = reinterpret_cast<void*>(reinterpret_cast<uint32_t>(code) & ~0x1); 891 } 892 return code; 893 } 894 895 uint32_t GetOatCodeSize(mirror::ArtMethod* m) 896 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 897 const uint32_t* oat_code_begin = reinterpret_cast<const uint32_t*>(GetOatCodeBegin(m)); 898 if (oat_code_begin == NULL) { 899 return 0; 900 } 901 return oat_code_begin[-1]; 902 } 903 904 const void* GetOatCodeEnd(mirror::ArtMethod* m) 905 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 906 const uint8_t* oat_code_begin = reinterpret_cast<const uint8_t*>(GetOatCodeBegin(m)); 907 if (oat_code_begin == NULL) { 908 return NULL; 909 } 910 return oat_code_begin + GetOatCodeSize(m); 911 } 912 913 static void Callback(mirror::Object* obj, void* arg) 914 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 915 DCHECK(obj != NULL); 916 DCHECK(arg != NULL); 917 ImageDumper* state = reinterpret_cast<ImageDumper*>(arg); 918 if (!state->InDumpSpace(obj)) { 919 return; 920 } 921 922 size_t object_bytes = obj->SizeOf(); 923 size_t alignment_bytes = RoundUp(object_bytes, kObjectAlignment) - object_bytes; 924 state->stats_.object_bytes += object_bytes; 925 state->stats_.alignment_bytes += alignment_bytes; 926 927 std::ostream& os = *state->os_; 928 mirror::Class* obj_class = obj->GetClass(); 929 if (obj_class->IsArrayClass()) { 930 os << StringPrintf("%p: %s length:%d\n", obj, PrettyDescriptor(obj_class).c_str(), 931 obj->AsArray()->GetLength()); 932 } else if (obj->IsClass()) { 933 mirror::Class* klass = obj->AsClass(); 934 os << StringPrintf("%p: java.lang.Class \"%s\" (", obj, PrettyDescriptor(klass).c_str()) 935 << klass->GetStatus() << ")\n"; 936 } else if (obj->IsArtField()) { 937 os << StringPrintf("%p: java.lang.reflect.ArtField %s\n", obj, 938 PrettyField(obj->AsArtField()).c_str()); 939 } else if (obj->IsArtMethod()) { 940 os << StringPrintf("%p: java.lang.reflect.ArtMethod %s\n", obj, 941 PrettyMethod(obj->AsArtMethod()).c_str()); 942 } else if (obj_class->IsStringClass()) { 943 os << StringPrintf("%p: java.lang.String %s\n", obj, 944 PrintableString(obj->AsString()->ToModifiedUtf8()).c_str()); 945 } else { 946 os << StringPrintf("%p: %s\n", obj, PrettyDescriptor(obj_class).c_str()); 947 } 948 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 949 std::ostream indent_os(&indent_filter); 950 DumpFields(indent_os, obj, obj_class); 951 if (obj->IsObjectArray()) { 952 mirror::ObjectArray<mirror::Object>* obj_array = obj->AsObjectArray<mirror::Object>(); 953 int32_t length = obj_array->GetLength(); 954 for (int32_t i = 0; i < length; i++) { 955 mirror::Object* value = obj_array->Get(i); 956 size_t run = 0; 957 for (int32_t j = i + 1; j < length; j++) { 958 if (value == obj_array->Get(j)) { 959 run++; 960 } else { 961 break; 962 } 963 } 964 if (run == 0) { 965 indent_os << StringPrintf("%d: ", i); 966 } else { 967 indent_os << StringPrintf("%d to %zd: ", i, i + run); 968 i = i + run; 969 } 970 mirror::Class* value_class = value == NULL ? obj_class->GetComponentType() : value->GetClass(); 971 PrettyObjectValue(indent_os, value_class, value); 972 } 973 } else if (obj->IsClass()) { 974 mirror::ObjectArray<mirror::ArtField>* sfields = obj->AsClass()->GetSFields(); 975 if (sfields != NULL) { 976 indent_os << "STATICS:\n"; 977 Indenter indent2_filter(indent_os.rdbuf(), kIndentChar, kIndentBy1Count); 978 std::ostream indent2_os(&indent2_filter); 979 for (int32_t i = 0; i < sfields->GetLength(); i++) { 980 mirror::ArtField* field = sfields->Get(i); 981 PrintField(indent2_os, field, field->GetDeclaringClass()); 982 } 983 } 984 } else if (obj->IsArtMethod()) { 985 mirror::ArtMethod* method = obj->AsArtMethod(); 986 if (method->IsNative()) { 987 DCHECK(method->GetNativeGcMap() == NULL) << PrettyMethod(method); 988 DCHECK(method->GetMappingTable() == NULL) << PrettyMethod(method); 989 bool first_occurrence; 990 const void* oat_code = state->GetOatCodeBegin(method); 991 uint32_t oat_code_size = state->GetOatCodeSize(method); 992 state->ComputeOatSize(oat_code, &first_occurrence); 993 if (first_occurrence) { 994 state->stats_.native_to_managed_code_bytes += oat_code_size; 995 } 996 if (oat_code != method->GetEntryPointFromCompiledCode()) { 997 indent_os << StringPrintf("OAT CODE: %p\n", oat_code); 998 } 999 } else if (method->IsAbstract() || method->IsCalleeSaveMethod() || 1000 method->IsResolutionMethod() || MethodHelper(method).IsClassInitializer()) { 1001 DCHECK(method->GetNativeGcMap() == NULL) << PrettyMethod(method); 1002 DCHECK(method->GetMappingTable() == NULL) << PrettyMethod(method); 1003 } else { 1004 // TODO: we check there is a GC map here, we may not have a GC map if the code is pointing 1005 // to the quick/portable to interpreter bridge. 1006 CHECK(method->GetNativeGcMap() != NULL) << PrettyMethod(method); 1007 1008 const DexFile::CodeItem* code_item = MethodHelper(method).GetCodeItem(); 1009 size_t dex_instruction_bytes = code_item->insns_size_in_code_units_ * 2; 1010 state->stats_.dex_instruction_bytes += dex_instruction_bytes; 1011 1012 bool first_occurrence; 1013 size_t gc_map_bytes = state->ComputeOatSize(method->GetNativeGcMap(), &first_occurrence); 1014 if (first_occurrence) { 1015 state->stats_.gc_map_bytes += gc_map_bytes; 1016 } 1017 1018 size_t pc_mapping_table_bytes = 1019 state->ComputeOatSize(method->GetMappingTable(), &first_occurrence); 1020 if (first_occurrence) { 1021 state->stats_.pc_mapping_table_bytes += pc_mapping_table_bytes; 1022 } 1023 1024 size_t vmap_table_bytes = 1025 state->ComputeOatSize(method->GetVmapTable(), &first_occurrence); 1026 if (first_occurrence) { 1027 state->stats_.vmap_table_bytes += vmap_table_bytes; 1028 } 1029 1030 const void* oat_code_begin = state->GetOatCodeBegin(method); 1031 const void* oat_code_end = state->GetOatCodeEnd(method); 1032 uint32_t oat_code_size = state->GetOatCodeSize(method); 1033 state->ComputeOatSize(oat_code_begin, &first_occurrence); 1034 if (first_occurrence) { 1035 state->stats_.managed_code_bytes += oat_code_size; 1036 if (method->IsConstructor()) { 1037 if (method->IsStatic()) { 1038 state->stats_.class_initializer_code_bytes += oat_code_size; 1039 } else if (dex_instruction_bytes > kLargeConstructorDexBytes) { 1040 state->stats_.large_initializer_code_bytes += oat_code_size; 1041 } 1042 } else if (dex_instruction_bytes > kLargeMethodDexBytes) { 1043 state->stats_.large_method_code_bytes += oat_code_size; 1044 } 1045 } 1046 state->stats_.managed_code_bytes_ignoring_deduplication += oat_code_size; 1047 1048 indent_os << StringPrintf("OAT CODE: %p-%p\n", oat_code_begin, oat_code_end); 1049 indent_os << StringPrintf("SIZE: Dex Instructions=%zd GC=%zd Mapping=%zd\n", 1050 dex_instruction_bytes, gc_map_bytes, pc_mapping_table_bytes); 1051 1052 size_t total_size = dex_instruction_bytes + gc_map_bytes + pc_mapping_table_bytes + 1053 vmap_table_bytes + oat_code_size + object_bytes; 1054 1055 double expansion = 1056 static_cast<double>(oat_code_size) / static_cast<double>(dex_instruction_bytes); 1057 state->stats_.ComputeOutliers(total_size, expansion, method); 1058 } 1059 } 1060 state->stats_.Update(ClassHelper(obj_class).GetDescriptor(), object_bytes); 1061 } 1062 1063 std::set<const void*> already_seen_; 1064 // Compute the size of the given data within the oat file and whether this is the first time 1065 // this data has been requested 1066 size_t ComputeOatSize(const void* oat_data, bool* first_occurrence) { 1067 if (already_seen_.count(oat_data) == 0) { 1068 *first_occurrence = true; 1069 already_seen_.insert(oat_data); 1070 } else { 1071 *first_occurrence = false; 1072 } 1073 return oat_dumper_->ComputeSize(oat_data); 1074 } 1075 1076 public: 1077 struct Stats { 1078 size_t oat_file_bytes; 1079 size_t file_bytes; 1080 1081 size_t header_bytes; 1082 size_t object_bytes; 1083 size_t bitmap_bytes; 1084 size_t alignment_bytes; 1085 1086 size_t managed_code_bytes; 1087 size_t managed_code_bytes_ignoring_deduplication; 1088 size_t managed_to_native_code_bytes; 1089 size_t native_to_managed_code_bytes; 1090 size_t class_initializer_code_bytes; 1091 size_t large_initializer_code_bytes; 1092 size_t large_method_code_bytes; 1093 1094 size_t gc_map_bytes; 1095 size_t pc_mapping_table_bytes; 1096 size_t vmap_table_bytes; 1097 1098 size_t dex_instruction_bytes; 1099 1100 std::vector<mirror::ArtMethod*> method_outlier; 1101 std::vector<size_t> method_outlier_size; 1102 std::vector<double> method_outlier_expansion; 1103 std::vector<std::pair<std::string, size_t> > oat_dex_file_sizes; 1104 1105 explicit Stats() 1106 : oat_file_bytes(0), 1107 file_bytes(0), 1108 header_bytes(0), 1109 object_bytes(0), 1110 bitmap_bytes(0), 1111 alignment_bytes(0), 1112 managed_code_bytes(0), 1113 managed_code_bytes_ignoring_deduplication(0), 1114 managed_to_native_code_bytes(0), 1115 native_to_managed_code_bytes(0), 1116 class_initializer_code_bytes(0), 1117 large_initializer_code_bytes(0), 1118 large_method_code_bytes(0), 1119 gc_map_bytes(0), 1120 pc_mapping_table_bytes(0), 1121 vmap_table_bytes(0), 1122 dex_instruction_bytes(0) {} 1123 1124 struct SizeAndCount { 1125 SizeAndCount(size_t bytes, size_t count) : bytes(bytes), count(count) {} 1126 size_t bytes; 1127 size_t count; 1128 }; 1129 typedef SafeMap<std::string, SizeAndCount> SizeAndCountTable; 1130 SizeAndCountTable sizes_and_counts; 1131 1132 void Update(const std::string& descriptor, size_t object_bytes) { 1133 SizeAndCountTable::iterator it = sizes_and_counts.find(descriptor); 1134 if (it != sizes_and_counts.end()) { 1135 it->second.bytes += object_bytes; 1136 it->second.count += 1; 1137 } else { 1138 sizes_and_counts.Put(descriptor, SizeAndCount(object_bytes, 1)); 1139 } 1140 } 1141 1142 double PercentOfOatBytes(size_t size) { 1143 return (static_cast<double>(size) / static_cast<double>(oat_file_bytes)) * 100; 1144 } 1145 1146 double PercentOfFileBytes(size_t size) { 1147 return (static_cast<double>(size) / static_cast<double>(file_bytes)) * 100; 1148 } 1149 1150 double PercentOfObjectBytes(size_t size) { 1151 return (static_cast<double>(size) / static_cast<double>(object_bytes)) * 100; 1152 } 1153 1154 void ComputeOutliers(size_t total_size, double expansion, mirror::ArtMethod* method) { 1155 method_outlier_size.push_back(total_size); 1156 method_outlier_expansion.push_back(expansion); 1157 method_outlier.push_back(method); 1158 } 1159 1160 void DumpOutliers(std::ostream& os) 1161 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1162 size_t sum_of_sizes = 0; 1163 size_t sum_of_sizes_squared = 0; 1164 size_t sum_of_expansion = 0; 1165 size_t sum_of_expansion_squared = 0; 1166 size_t n = method_outlier_size.size(); 1167 for (size_t i = 0; i < n; i++) { 1168 size_t cur_size = method_outlier_size[i]; 1169 sum_of_sizes += cur_size; 1170 sum_of_sizes_squared += cur_size * cur_size; 1171 double cur_expansion = method_outlier_expansion[i]; 1172 sum_of_expansion += cur_expansion; 1173 sum_of_expansion_squared += cur_expansion * cur_expansion; 1174 } 1175 size_t size_mean = sum_of_sizes / n; 1176 size_t size_variance = (sum_of_sizes_squared - sum_of_sizes * size_mean) / (n - 1); 1177 double expansion_mean = sum_of_expansion / n; 1178 double expansion_variance = 1179 (sum_of_expansion_squared - sum_of_expansion * expansion_mean) / (n - 1); 1180 1181 // Dump methods whose size is a certain number of standard deviations from the mean 1182 size_t dumped_values = 0; 1183 size_t skipped_values = 0; 1184 for (size_t i = 100; i > 0; i--) { // i is the current number of standard deviations 1185 size_t cur_size_variance = i * i * size_variance; 1186 bool first = true; 1187 for (size_t j = 0; j < n; j++) { 1188 size_t cur_size = method_outlier_size[j]; 1189 if (cur_size > size_mean) { 1190 size_t cur_var = cur_size - size_mean; 1191 cur_var = cur_var * cur_var; 1192 if (cur_var > cur_size_variance) { 1193 if (dumped_values > 20) { 1194 if (i == 1) { 1195 skipped_values++; 1196 } else { 1197 i = 2; // jump to counting for 1 standard deviation 1198 break; 1199 } 1200 } else { 1201 if (first) { 1202 os << "\nBig methods (size > " << i << " standard deviations the norm):\n"; 1203 first = false; 1204 } 1205 os << PrettyMethod(method_outlier[j]) << " requires storage of " 1206 << PrettySize(cur_size) << "\n"; 1207 method_outlier_size[j] = 0; // don't consider this method again 1208 dumped_values++; 1209 } 1210 } 1211 } 1212 } 1213 } 1214 if (skipped_values > 0) { 1215 os << "... skipped " << skipped_values 1216 << " methods with size > 1 standard deviation from the norm\n"; 1217 } 1218 os << std::flush; 1219 1220 // Dump methods whose expansion is a certain number of standard deviations from the mean 1221 dumped_values = 0; 1222 skipped_values = 0; 1223 for (size_t i = 10; i > 0; i--) { // i is the current number of standard deviations 1224 double cur_expansion_variance = i * i * expansion_variance; 1225 bool first = true; 1226 for (size_t j = 0; j < n; j++) { 1227 double cur_expansion = method_outlier_expansion[j]; 1228 if (cur_expansion > expansion_mean) { 1229 size_t cur_var = cur_expansion - expansion_mean; 1230 cur_var = cur_var * cur_var; 1231 if (cur_var > cur_expansion_variance) { 1232 if (dumped_values > 20) { 1233 if (i == 1) { 1234 skipped_values++; 1235 } else { 1236 i = 2; // jump to counting for 1 standard deviation 1237 break; 1238 } 1239 } else { 1240 if (first) { 1241 os << "\nLarge expansion methods (size > " << i 1242 << " standard deviations the norm):\n"; 1243 first = false; 1244 } 1245 os << PrettyMethod(method_outlier[j]) << " expanded code by " 1246 << cur_expansion << "\n"; 1247 method_outlier_expansion[j] = 0.0; // don't consider this method again 1248 dumped_values++; 1249 } 1250 } 1251 } 1252 } 1253 } 1254 if (skipped_values > 0) { 1255 os << "... skipped " << skipped_values 1256 << " methods with expansion > 1 standard deviation from the norm\n"; 1257 } 1258 os << "\n" << std::flush; 1259 } 1260 1261 void Dump(std::ostream& os) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1262 { 1263 os << "art_file_bytes = " << PrettySize(file_bytes) << "\n\n" 1264 << "art_file_bytes = header_bytes + object_bytes + alignment_bytes\n"; 1265 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 1266 std::ostream indent_os(&indent_filter); 1267 indent_os << StringPrintf("header_bytes = %8zd (%2.0f%% of art file bytes)\n" 1268 "object_bytes = %8zd (%2.0f%% of art file bytes)\n" 1269 "bitmap_bytes = %8zd (%2.0f%% of art file bytes)\n" 1270 "alignment_bytes = %8zd (%2.0f%% of art file bytes)\n\n", 1271 header_bytes, PercentOfFileBytes(header_bytes), 1272 object_bytes, PercentOfFileBytes(object_bytes), 1273 bitmap_bytes, PercentOfFileBytes(bitmap_bytes), 1274 alignment_bytes, PercentOfFileBytes(alignment_bytes)) 1275 << std::flush; 1276 CHECK_EQ(file_bytes, bitmap_bytes + header_bytes + object_bytes + alignment_bytes); 1277 } 1278 1279 os << "object_bytes breakdown:\n"; 1280 size_t object_bytes_total = 0; 1281 for (const auto& sizes_and_count : sizes_and_counts) { 1282 const std::string& descriptor(sizes_and_count.first); 1283 double average = static_cast<double>(sizes_and_count.second.bytes) / 1284 static_cast<double>(sizes_and_count.second.count); 1285 double percent = PercentOfObjectBytes(sizes_and_count.second.bytes); 1286 os << StringPrintf("%32s %8zd bytes %6zd instances " 1287 "(%4.0f bytes/instance) %2.0f%% of object_bytes\n", 1288 descriptor.c_str(), sizes_and_count.second.bytes, 1289 sizes_and_count.second.count, average, percent); 1290 object_bytes_total += sizes_and_count.second.bytes; 1291 } 1292 os << "\n" << std::flush; 1293 CHECK_EQ(object_bytes, object_bytes_total); 1294 1295 os << StringPrintf("oat_file_bytes = %8zd\n" 1296 "managed_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1297 "managed_to_native_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1298 "native_to_managed_code_bytes = %8zd (%2.0f%% of oat file bytes)\n\n" 1299 "class_initializer_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1300 "large_initializer_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1301 "large_method_code_bytes = %8zd (%2.0f%% of oat file bytes)\n\n", 1302 oat_file_bytes, 1303 managed_code_bytes, PercentOfOatBytes(managed_code_bytes), 1304 managed_to_native_code_bytes, PercentOfOatBytes(managed_to_native_code_bytes), 1305 native_to_managed_code_bytes, PercentOfOatBytes(native_to_managed_code_bytes), 1306 class_initializer_code_bytes, PercentOfOatBytes(class_initializer_code_bytes), 1307 large_initializer_code_bytes, PercentOfOatBytes(large_initializer_code_bytes), 1308 large_method_code_bytes, PercentOfOatBytes(large_method_code_bytes)) 1309 << "DexFile sizes:\n"; 1310 for (const std::pair<std::string, size_t>& oat_dex_file_size : oat_dex_file_sizes) { 1311 os << StringPrintf("%s = %zd (%2.0f%% of oat file bytes)\n", 1312 oat_dex_file_size.first.c_str(), oat_dex_file_size.second, 1313 PercentOfOatBytes(oat_dex_file_size.second)); 1314 } 1315 1316 os << "\n" << StringPrintf("gc_map_bytes = %7zd (%2.0f%% of oat file bytes)\n" 1317 "pc_mapping_table_bytes = %7zd (%2.0f%% of oat file bytes)\n" 1318 "vmap_table_bytes = %7zd (%2.0f%% of oat file bytes)\n\n", 1319 gc_map_bytes, PercentOfOatBytes(gc_map_bytes), 1320 pc_mapping_table_bytes, PercentOfOatBytes(pc_mapping_table_bytes), 1321 vmap_table_bytes, PercentOfOatBytes(vmap_table_bytes)) 1322 << std::flush; 1323 1324 os << StringPrintf("dex_instruction_bytes = %zd\n", dex_instruction_bytes) 1325 << StringPrintf("managed_code_bytes expansion = %.2f (ignoring deduplication %.2f)\n\n", 1326 static_cast<double>(managed_code_bytes) / static_cast<double>(dex_instruction_bytes), 1327 static_cast<double>(managed_code_bytes_ignoring_deduplication) / 1328 static_cast<double>(dex_instruction_bytes)) 1329 << std::flush; 1330 1331 DumpOutliers(os); 1332 } 1333 } stats_; 1334 1335 private: 1336 enum { 1337 // Number of bytes for a constructor to be considered large. Based on the 1000 basic block 1338 // threshold, we assume 2 bytes per instruction and 2 instructions per block. 1339 kLargeConstructorDexBytes = 4000, 1340 // Number of bytes for a method to be considered large. Based on the 4000 basic block 1341 // threshold, we assume 2 bytes per instruction and 2 instructions per block. 1342 kLargeMethodDexBytes = 16000 1343 }; 1344 UniquePtr<OatDumper> oat_dumper_; 1345 std::ostream* os_; 1346 const std::string image_filename_; 1347 const std::string host_prefix_; 1348 gc::space::ImageSpace& image_space_; 1349 const ImageHeader& image_header_; 1350 1351 DISALLOW_COPY_AND_ASSIGN(ImageDumper); 1352}; 1353 1354static int oatdump(int argc, char** argv) { 1355 InitLogging(argv); 1356 1357 // Skip over argv[0]. 1358 argv++; 1359 argc--; 1360 1361 if (argc == 0) { 1362 fprintf(stderr, "No arguments specified\n"); 1363 usage(); 1364 } 1365 1366 const char* oat_filename = NULL; 1367 const char* image_filename = NULL; 1368 const char* boot_image_filename = NULL; 1369 std::string elf_filename_prefix; 1370 UniquePtr<std::string> host_prefix; 1371 std::ostream* os = &std::cout; 1372 UniquePtr<std::ofstream> out; 1373 1374 for (int i = 0; i < argc; i++) { 1375 const StringPiece option(argv[i]); 1376 if (option.starts_with("--oat-file=")) { 1377 oat_filename = option.substr(strlen("--oat-file=")).data(); 1378 } else if (option.starts_with("--image=")) { 1379 image_filename = option.substr(strlen("--image=")).data(); 1380 } else if (option.starts_with("--boot-image=")) { 1381 boot_image_filename = option.substr(strlen("--boot-image=")).data(); 1382 } else if (option.starts_with("--host-prefix=")) { 1383 host_prefix.reset(new std::string(option.substr(strlen("--host-prefix=")).data())); 1384 } else if (option.starts_with("--output=")) { 1385 const char* filename = option.substr(strlen("--output=")).data(); 1386 out.reset(new std::ofstream(filename)); 1387 if (!out->good()) { 1388 fprintf(stderr, "Failed to open output filename %s\n", filename); 1389 usage(); 1390 } 1391 os = out.get(); 1392 } else { 1393 fprintf(stderr, "Unknown argument %s\n", option.data()); 1394 usage(); 1395 } 1396 } 1397 1398 if (image_filename == NULL && oat_filename == NULL) { 1399 fprintf(stderr, "Either --image or --oat must be specified\n"); 1400 return EXIT_FAILURE; 1401 } 1402 1403 if (image_filename != NULL && oat_filename != NULL) { 1404 fprintf(stderr, "Either --image or --oat must be specified but not both\n"); 1405 return EXIT_FAILURE; 1406 } 1407 1408 if (host_prefix.get() == NULL) { 1409 const char* android_product_out = getenv("ANDROID_PRODUCT_OUT"); 1410 if (android_product_out != NULL) { 1411 host_prefix.reset(new std::string(android_product_out)); 1412 } else { 1413 host_prefix.reset(new std::string("")); 1414 } 1415 } 1416 1417 if (oat_filename != NULL) { 1418 OatFile* oat_file = 1419 OatFile::Open(oat_filename, oat_filename, NULL, false); 1420 if (oat_file == NULL) { 1421 fprintf(stderr, "Failed to open oat file from %s\n", oat_filename); 1422 return EXIT_FAILURE; 1423 } 1424 OatDumper oat_dumper(*host_prefix.get(), *oat_file); 1425 oat_dumper.Dump(*os); 1426 return EXIT_SUCCESS; 1427 } 1428 1429 Runtime::Options options; 1430 std::string image_option; 1431 std::string oat_option; 1432 std::string boot_image_option; 1433 std::string boot_oat_option; 1434 1435 // We are more like a compiler than a run-time. We don't want to execute code. 1436 options.push_back(std::make_pair("compiler", reinterpret_cast<void*>(NULL))); 1437 1438 if (boot_image_filename != NULL) { 1439 boot_image_option += "-Ximage:"; 1440 boot_image_option += boot_image_filename; 1441 options.push_back(std::make_pair(boot_image_option.c_str(), reinterpret_cast<void*>(NULL))); 1442 } 1443 if (image_filename != NULL) { 1444 image_option += "-Ximage:"; 1445 image_option += image_filename; 1446 options.push_back(std::make_pair(image_option.c_str(), reinterpret_cast<void*>(NULL))); 1447 } 1448 1449 if (!host_prefix->empty()) { 1450 options.push_back(std::make_pair("host-prefix", host_prefix->c_str())); 1451 } 1452 1453 if (!Runtime::Create(options, false)) { 1454 fprintf(stderr, "Failed to create runtime\n"); 1455 return EXIT_FAILURE; 1456 } 1457 UniquePtr<Runtime> runtime(Runtime::Current()); 1458 // Runtime::Create acquired the mutator_lock_ that is normally given away when we Runtime::Start, 1459 // give it away now and then switch to a more managable ScopedObjectAccess. 1460 Thread::Current()->TransitionFromRunnableToSuspended(kNative); 1461 ScopedObjectAccess soa(Thread::Current()); 1462 1463 gc::Heap* heap = Runtime::Current()->GetHeap(); 1464 gc::space::ImageSpace* image_space = heap->GetImageSpace(); 1465 CHECK(image_space != NULL); 1466 const ImageHeader& image_header = image_space->GetImageHeader(); 1467 if (!image_header.IsValid()) { 1468 fprintf(stderr, "Invalid image header %s\n", image_filename); 1469 return EXIT_FAILURE; 1470 } 1471 ImageDumper image_dumper(os, image_filename, *host_prefix.get(), *image_space, image_header); 1472 image_dumper.Dump(); 1473 return EXIT_SUCCESS; 1474} 1475 1476} // namespace art 1477 1478int main(int argc, char** argv) { 1479 return art::oatdump(argc, argv); 1480} 1481