oatdump.cc revision ba150c37d582eeeb8c11ba5245edc281cf31793c
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 != nullptr); 177 std::string error_msg; 178 UniquePtr<const DexFile> dex_file(oat_dex_file->OpenDexFile(&error_msg)); 179 if (dex_file.get() == nullptr) { 180 LOG(WARNING) << "Failed to open dex file '" << oat_dex_file->GetDexFileLocation() 181 << "': " << error_msg; 182 } else { 183 const DexFile::ClassDef* class_def = 184 dex_file->FindClassDef(mh.GetDeclaringClassDescriptor()); 185 if (class_def != NULL) { 186 uint16_t class_def_index = dex_file->GetIndexForClassDef(*class_def); 187 const OatFile::OatClass* oat_class = oat_dex_file->GetOatClass(class_def_index); 188 CHECK(oat_class != NULL); 189 size_t method_index = m->GetMethodIndex(); 190 return oat_class->GetOatMethod(method_index).GetCode(); 191 } 192 } 193 } 194 return NULL; 195 } 196 197 private: 198 void AddAllOffsets() { 199 // We don't know the length of the code for each method, but we need to know where to stop 200 // when disassembling. What we do know is that a region of code will be followed by some other 201 // region, so if we keep a sorted sequence of the start of each region, we can infer the length 202 // of a piece of code by using upper_bound to find the start of the next region. 203 for (size_t i = 0; i < oat_dex_files_.size(); i++) { 204 const OatFile::OatDexFile* oat_dex_file = oat_dex_files_[i]; 205 CHECK(oat_dex_file != NULL); 206 std::string error_msg; 207 UniquePtr<const DexFile> dex_file(oat_dex_file->OpenDexFile(&error_msg)); 208 if (dex_file.get() == nullptr) { 209 LOG(WARNING) << "Failed to open dex file '" << oat_dex_file->GetDexFileLocation() 210 << "': " << error_msg; 211 continue; 212 } 213 offsets_.insert(reinterpret_cast<uint32_t>(&dex_file->GetHeader())); 214 for (size_t class_def_index = 0; class_def_index < dex_file->NumClassDefs(); class_def_index++) { 215 const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index); 216 UniquePtr<const OatFile::OatClass> oat_class(oat_dex_file->GetOatClass(class_def_index)); 217 const byte* class_data = dex_file->GetClassData(class_def); 218 if (class_data != NULL) { 219 ClassDataItemIterator it(*dex_file, class_data); 220 SkipAllFields(it); 221 uint32_t class_method_index = 0; 222 while (it.HasNextDirectMethod()) { 223 AddOffsets(oat_class->GetOatMethod(class_method_index++)); 224 it.Next(); 225 } 226 while (it.HasNextVirtualMethod()) { 227 AddOffsets(oat_class->GetOatMethod(class_method_index++)); 228 it.Next(); 229 } 230 } 231 } 232 } 233 234 // If the last thing in the file is code for a method, there won't be an offset for the "next" 235 // thing. Instead of having a special case in the upper_bound code, let's just add an entry 236 // for the end of the file. 237 offsets_.insert(static_cast<uint32_t>(oat_file_.Size())); 238 } 239 240 void AddOffsets(const OatFile::OatMethod& oat_method) { 241 uint32_t code_offset = oat_method.GetCodeOffset(); 242 if (oat_file_.GetOatHeader().GetInstructionSet() == kThumb2) { 243 code_offset &= ~0x1; 244 } 245 offsets_.insert(code_offset); 246 offsets_.insert(oat_method.GetMappingTableOffset()); 247 offsets_.insert(oat_method.GetVmapTableOffset()); 248 offsets_.insert(oat_method.GetNativeGcMapOffset()); 249 } 250 251 void DumpOatDexFile(std::ostream& os, const OatFile::OatDexFile& oat_dex_file) { 252 os << "OAT DEX FILE:\n"; 253 os << StringPrintf("location: %s\n", oat_dex_file.GetDexFileLocation().c_str()); 254 os << StringPrintf("checksum: 0x%08x\n", oat_dex_file.GetDexFileLocationChecksum()); 255 std::string error_msg; 256 UniquePtr<const DexFile> dex_file(oat_dex_file.OpenDexFile(&error_msg)); 257 if (dex_file.get() == NULL) { 258 os << "NOT FOUND: " << error_msg << "\n\n"; 259 return; 260 } 261 for (size_t class_def_index = 0; class_def_index < dex_file->NumClassDefs(); class_def_index++) { 262 const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index); 263 const char* descriptor = dex_file->GetClassDescriptor(class_def); 264 UniquePtr<const OatFile::OatClass> oat_class(oat_dex_file.GetOatClass(class_def_index)); 265 CHECK(oat_class.get() != NULL); 266 os << StringPrintf("%zd: %s (type_idx=%d)", class_def_index, descriptor, class_def.class_idx_) 267 << " (" << oat_class->GetStatus() << ")" 268 << " (" << oat_class->GetType() << ")\n"; 269 // TODO: include bitmap here if type is kOatClassBitmap? 270 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 271 std::ostream indented_os(&indent_filter); 272 DumpOatClass(indented_os, *oat_class.get(), *(dex_file.get()), class_def); 273 } 274 275 os << std::flush; 276 } 277 278 static void SkipAllFields(ClassDataItemIterator& it) { 279 while (it.HasNextStaticField()) { 280 it.Next(); 281 } 282 while (it.HasNextInstanceField()) { 283 it.Next(); 284 } 285 } 286 287 void DumpOatClass(std::ostream& os, const OatFile::OatClass& oat_class, const DexFile& dex_file, 288 const DexFile::ClassDef& class_def) { 289 const byte* class_data = dex_file.GetClassData(class_def); 290 if (class_data == NULL) { // empty class such as a marker interface? 291 return; 292 } 293 ClassDataItemIterator it(dex_file, class_data); 294 SkipAllFields(it); 295 uint32_t class_method_idx = 0; 296 while (it.HasNextDirectMethod()) { 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 while (it.HasNextVirtualMethod()) { 304 const OatFile::OatMethod oat_method = oat_class.GetOatMethod(class_method_idx); 305 DumpOatMethod(os, class_def, class_method_idx, oat_method, dex_file, 306 it.GetMemberIndex(), it.GetMethodCodeItem(), it.GetMemberAccessFlags()); 307 class_method_idx++; 308 it.Next(); 309 } 310 DCHECK(!it.HasNext()); 311 os << std::flush; 312 } 313 314 void DumpOatMethod(std::ostream& os, const DexFile::ClassDef& class_def, 315 uint32_t class_method_index, 316 const OatFile::OatMethod& oat_method, const DexFile& dex_file, 317 uint32_t dex_method_idx, const DexFile::CodeItem* code_item, 318 uint32_t method_access_flags) { 319 os << StringPrintf("%d: %s (dex_method_idx=%d)\n", 320 class_method_index, PrettyMethod(dex_method_idx, dex_file, true).c_str(), 321 dex_method_idx); 322 Indenter indent1_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 323 std::ostream indent1_os(&indent1_filter); 324 { 325 indent1_os << "DEX CODE:\n"; 326 Indenter indent2_filter(indent1_os.rdbuf(), kIndentChar, kIndentBy1Count); 327 std::ostream indent2_os(&indent2_filter); 328 DumpDexCode(indent2_os, dex_file, code_item); 329 } 330 if (Runtime::Current() != NULL) { 331 indent1_os << "VERIFIER TYPE ANALYSIS:\n"; 332 Indenter indent2_filter(indent1_os.rdbuf(), kIndentChar, kIndentBy1Count); 333 std::ostream indent2_os(&indent2_filter); 334 DumpVerifier(indent2_os, dex_method_idx, &dex_file, class_def, code_item, 335 method_access_flags); 336 } 337 { 338 indent1_os << "OAT DATA:\n"; 339 Indenter indent2_filter(indent1_os.rdbuf(), kIndentChar, kIndentBy1Count); 340 std::ostream indent2_os(&indent2_filter); 341 342 indent2_os << StringPrintf("frame_size_in_bytes: %zd\n", oat_method.GetFrameSizeInBytes()); 343 indent2_os << StringPrintf("core_spill_mask: 0x%08x ", oat_method.GetCoreSpillMask()); 344 DumpSpillMask(indent2_os, oat_method.GetCoreSpillMask(), false); 345 indent2_os << StringPrintf("\nfp_spill_mask: 0x%08x ", oat_method.GetFpSpillMask()); 346 DumpSpillMask(indent2_os, oat_method.GetFpSpillMask(), true); 347 indent2_os << StringPrintf("\nvmap_table: %p (offset=0x%08x)\n", 348 oat_method.GetVmapTable(), oat_method.GetVmapTableOffset()); 349 DumpVmap(indent2_os, oat_method); 350 indent2_os << StringPrintf("mapping_table: %p (offset=0x%08x)\n", 351 oat_method.GetMappingTable(), oat_method.GetMappingTableOffset()); 352 const bool kDumpRawMappingTable = false; 353 if (kDumpRawMappingTable) { 354 Indenter indent3_filter(indent2_os.rdbuf(), kIndentChar, kIndentBy1Count); 355 std::ostream indent3_os(&indent3_filter); 356 DumpMappingTable(indent3_os, oat_method); 357 } 358 indent2_os << StringPrintf("gc_map: %p (offset=0x%08x)\n", 359 oat_method.GetNativeGcMap(), oat_method.GetNativeGcMapOffset()); 360 const bool kDumpRawGcMap = false; 361 if (kDumpRawGcMap) { 362 Indenter indent3_filter(indent2_os.rdbuf(), kIndentChar, kIndentBy1Count); 363 std::ostream indent3_os(&indent3_filter); 364 DumpGcMap(indent3_os, oat_method, code_item); 365 } 366 } 367 { 368 indent1_os << StringPrintf("CODE: %p (offset=0x%08x size=%d)%s\n", 369 oat_method.GetCode(), 370 oat_method.GetCodeOffset(), 371 oat_method.GetCodeSize(), 372 oat_method.GetCode() != NULL ? "..." : ""); 373 Indenter indent2_filter(indent1_os.rdbuf(), kIndentChar, kIndentBy1Count); 374 std::ostream indent2_os(&indent2_filter); 375 DumpCode(indent2_os, oat_method, dex_method_idx, &dex_file, class_def, code_item, 376 method_access_flags); 377 } 378 } 379 380 void DumpSpillMask(std::ostream& os, uint32_t spill_mask, bool is_float) { 381 if (spill_mask == 0) { 382 return; 383 } 384 os << "("; 385 for (size_t i = 0; i < 32; i++) { 386 if ((spill_mask & (1 << i)) != 0) { 387 if (is_float) { 388 os << "fr" << i; 389 } else { 390 os << "r" << i; 391 } 392 spill_mask ^= 1 << i; // clear bit 393 if (spill_mask != 0) { 394 os << ", "; 395 } else { 396 break; 397 } 398 } 399 } 400 os << ")"; 401 } 402 403 void DumpVmap(std::ostream& os, const OatFile::OatMethod& oat_method) { 404 const uint8_t* raw_table = oat_method.GetVmapTable(); 405 if (raw_table != NULL) { 406 const VmapTable vmap_table(raw_table); 407 bool first = true; 408 bool processing_fp = false; 409 uint32_t spill_mask = oat_method.GetCoreSpillMask(); 410 for (size_t i = 0; i < vmap_table.Size(); i++) { 411 uint16_t dex_reg = vmap_table[i]; 412 uint32_t cpu_reg = vmap_table.ComputeRegister(spill_mask, i, 413 processing_fp ? kFloatVReg : kIntVReg); 414 os << (first ? "v" : ", v") << dex_reg; 415 if (!processing_fp) { 416 os << "/r" << cpu_reg; 417 } else { 418 os << "/fr" << cpu_reg; 419 } 420 first = false; 421 if (!processing_fp && dex_reg == 0xFFFF) { 422 processing_fp = true; 423 spill_mask = oat_method.GetFpSpillMask(); 424 } 425 } 426 os << "\n"; 427 } 428 } 429 430 void DescribeVReg(std::ostream& os, const OatFile::OatMethod& oat_method, 431 const DexFile::CodeItem* code_item, size_t reg, VRegKind kind) { 432 const uint8_t* raw_table = oat_method.GetVmapTable(); 433 if (raw_table != NULL) { 434 const VmapTable vmap_table(raw_table); 435 uint32_t vmap_offset; 436 if (vmap_table.IsInContext(reg, kind, &vmap_offset)) { 437 bool is_float = (kind == kFloatVReg) || (kind == kDoubleLoVReg) || (kind == kDoubleHiVReg); 438 uint32_t spill_mask = is_float ? oat_method.GetFpSpillMask() 439 : oat_method.GetCoreSpillMask(); 440 os << (is_float ? "fr" : "r") << vmap_table.ComputeRegister(spill_mask, vmap_offset, kind); 441 } else { 442 uint32_t offset = StackVisitor::GetVRegOffset(code_item, oat_method.GetCoreSpillMask(), 443 oat_method.GetFpSpillMask(), 444 oat_method.GetFrameSizeInBytes(), reg); 445 os << "[sp + #" << offset << "]"; 446 } 447 } 448 } 449 450 void DumpGcMap(std::ostream& os, const OatFile::OatMethod& oat_method, 451 const DexFile::CodeItem* code_item) { 452 const uint8_t* gc_map_raw = oat_method.GetNativeGcMap(); 453 if (gc_map_raw == NULL) { 454 return; 455 } 456 NativePcOffsetToReferenceMap map(gc_map_raw); 457 const void* code = oat_method.GetCode(); 458 for (size_t entry = 0; entry < map.NumEntries(); entry++) { 459 const uint8_t* native_pc = reinterpret_cast<const uint8_t*>(code) + 460 map.GetNativePcOffset(entry); 461 os << StringPrintf("%p", native_pc); 462 size_t num_regs = map.RegWidth() * 8; 463 const uint8_t* reg_bitmap = map.GetBitMap(entry); 464 bool first = true; 465 for (size_t reg = 0; reg < num_regs; reg++) { 466 if (((reg_bitmap[reg / 8] >> (reg % 8)) & 0x01) != 0) { 467 if (first) { 468 os << " v" << reg << " ("; 469 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 470 os << ")"; 471 first = false; 472 } else { 473 os << ", v" << reg << " ("; 474 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 475 os << ")"; 476 } 477 } 478 } 479 os << "\n"; 480 } 481 } 482 483 void DumpMappingTable(std::ostream& os, const OatFile::OatMethod& oat_method) { 484 const void* code = oat_method.GetCode(); 485 if (code == NULL) { 486 return; 487 } 488 MappingTable table(oat_method.GetMappingTable()); 489 if (table.TotalSize() != 0) { 490 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 491 std::ostream indent_os(&indent_filter); 492 if (table.PcToDexSize() != 0) { 493 typedef MappingTable::PcToDexIterator It; 494 os << "suspend point mappings {\n"; 495 for (It cur = table.PcToDexBegin(), end = table.PcToDexEnd(); cur != end; ++cur) { 496 indent_os << StringPrintf("0x%04x -> 0x%04x\n", cur.NativePcOffset(), cur.DexPc()); 497 } 498 os << "}\n"; 499 } 500 if (table.DexToPcSize() != 0) { 501 typedef MappingTable::DexToPcIterator It; 502 os << "catch entry mappings {\n"; 503 for (It cur = table.DexToPcBegin(), end = table.DexToPcEnd(); cur != end; ++cur) { 504 indent_os << StringPrintf("0x%04x -> 0x%04x\n", cur.NativePcOffset(), cur.DexPc()); 505 } 506 os << "}\n"; 507 } 508 } 509 } 510 511 uint32_t DumpMappingAtOffset(std::ostream& os, const OatFile::OatMethod& oat_method, 512 size_t offset, bool suspend_point_mapping) { 513 MappingTable table(oat_method.GetMappingTable()); 514 if (suspend_point_mapping && table.PcToDexSize() > 0) { 515 typedef MappingTable::PcToDexIterator It; 516 for (It cur = table.PcToDexBegin(), end = table.PcToDexEnd(); cur != end; ++cur) { 517 if (offset == cur.NativePcOffset()) { 518 os << StringPrintf("suspend point dex PC: 0x%04x\n", cur.DexPc()); 519 return cur.DexPc(); 520 } 521 } 522 } else if (!suspend_point_mapping && table.DexToPcSize() > 0) { 523 typedef MappingTable::DexToPcIterator It; 524 for (It cur = table.DexToPcBegin(), end = table.DexToPcEnd(); cur != end; ++cur) { 525 if (offset == cur.NativePcOffset()) { 526 os << StringPrintf("catch entry dex PC: 0x%04x\n", cur.DexPc()); 527 return cur.DexPc(); 528 } 529 } 530 } 531 return DexFile::kDexNoIndex; 532 } 533 534 void DumpGcMapAtNativePcOffset(std::ostream& os, const OatFile::OatMethod& oat_method, 535 const DexFile::CodeItem* code_item, size_t native_pc_offset) { 536 const uint8_t* gc_map_raw = oat_method.GetNativeGcMap(); 537 if (gc_map_raw != NULL) { 538 NativePcOffsetToReferenceMap map(gc_map_raw); 539 if (map.HasEntry(native_pc_offset)) { 540 size_t num_regs = map.RegWidth() * 8; 541 const uint8_t* reg_bitmap = map.FindBitMap(native_pc_offset); 542 bool first = true; 543 for (size_t reg = 0; reg < num_regs; reg++) { 544 if (((reg_bitmap[reg / 8] >> (reg % 8)) & 0x01) != 0) { 545 if (first) { 546 os << "GC map objects: v" << reg << " ("; 547 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 548 os << ")"; 549 first = false; 550 } else { 551 os << ", v" << reg << " ("; 552 DescribeVReg(os, oat_method, code_item, reg, kReferenceVReg); 553 os << ")"; 554 } 555 } 556 } 557 if (!first) { 558 os << "\n"; 559 } 560 } 561 } 562 } 563 564 void DumpVRegsAtDexPc(std::ostream& os, const OatFile::OatMethod& oat_method, 565 uint32_t dex_method_idx, const DexFile* dex_file, 566 const DexFile::ClassDef& class_def, const DexFile::CodeItem* code_item, 567 uint32_t method_access_flags, uint32_t dex_pc) { 568 static UniquePtr<verifier::MethodVerifier> verifier; 569 static const DexFile* verified_dex_file = NULL; 570 static uint32_t verified_dex_method_idx = DexFile::kDexNoIndex; 571 if (dex_file != verified_dex_file || verified_dex_method_idx != dex_method_idx) { 572 ScopedObjectAccess soa(Thread::Current()); 573 mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(*dex_file); 574 mirror::ClassLoader* class_loader = NULL; 575 verifier.reset(new verifier::MethodVerifier(dex_file, dex_cache, class_loader, &class_def, 576 code_item, dex_method_idx, NULL, 577 method_access_flags, true, true)); 578 verifier->Verify(); 579 verified_dex_file = dex_file; 580 verified_dex_method_idx = dex_method_idx; 581 } 582 std::vector<int32_t> kinds = verifier->DescribeVRegs(dex_pc); 583 bool first = true; 584 for (size_t reg = 0; reg < code_item->registers_size_; reg++) { 585 VRegKind kind = static_cast<VRegKind>(kinds.at(reg * 2)); 586 if (kind != kUndefined) { 587 if (first) { 588 os << "VRegs: v"; 589 first = false; 590 } else { 591 os << ", v"; 592 } 593 os << reg << " ("; 594 switch (kind) { 595 case kImpreciseConstant: 596 os << "Imprecise Constant: " << kinds.at((reg * 2) + 1) << ", "; 597 DescribeVReg(os, oat_method, code_item, reg, kind); 598 break; 599 case kConstant: 600 os << "Constant: " << kinds.at((reg * 2) + 1); 601 break; 602 default: 603 DescribeVReg(os, oat_method, code_item, reg, kind); 604 break; 605 } 606 os << ")"; 607 } 608 } 609 if (!first) { 610 os << "\n"; 611 } 612 } 613 614 615 void DumpDexCode(std::ostream& os, const DexFile& dex_file, const DexFile::CodeItem* code_item) { 616 if (code_item != NULL) { 617 size_t i = 0; 618 while (i < code_item->insns_size_in_code_units_) { 619 const Instruction* instruction = Instruction::At(&code_item->insns_[i]); 620 os << StringPrintf("0x%04zx: %s\n", i, instruction->DumpString(&dex_file).c_str()); 621 i += instruction->SizeInCodeUnits(); 622 } 623 } 624 } 625 626 void DumpVerifier(std::ostream& os, uint32_t dex_method_idx, const DexFile* dex_file, 627 const DexFile::ClassDef& class_def, const DexFile::CodeItem* code_item, 628 uint32_t method_access_flags) { 629 if ((method_access_flags & kAccNative) == 0) { 630 ScopedObjectAccess soa(Thread::Current()); 631 mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(*dex_file); 632 mirror::ClassLoader* class_loader = NULL; 633 verifier::MethodVerifier::VerifyMethodAndDump(os, dex_method_idx, dex_file, dex_cache, 634 class_loader, &class_def, code_item, NULL, 635 method_access_flags); 636 } 637 } 638 639 void DumpCode(std::ostream& os, const OatFile::OatMethod& oat_method, 640 uint32_t dex_method_idx, const DexFile* dex_file, 641 const DexFile::ClassDef& class_def, const DexFile::CodeItem* code_item, 642 uint32_t method_access_flags) { 643 const void* code = oat_method.GetCode(); 644 size_t code_size = oat_method.GetCodeSize(); 645 if (code == NULL || code_size == 0) { 646 os << "NO CODE!\n"; 647 return; 648 } 649 const uint8_t* native_pc = reinterpret_cast<const uint8_t*>(code); 650 size_t offset = 0; 651 const bool kDumpVRegs = (Runtime::Current() != NULL); 652 while (offset < code_size) { 653 DumpMappingAtOffset(os, oat_method, offset, false); 654 offset += disassembler_->Dump(os, native_pc + offset); 655 uint32_t dex_pc = DumpMappingAtOffset(os, oat_method, offset, true); 656 if (dex_pc != DexFile::kDexNoIndex) { 657 DumpGcMapAtNativePcOffset(os, oat_method, code_item, offset); 658 if (kDumpVRegs) { 659 DumpVRegsAtDexPc(os, oat_method, dex_method_idx, dex_file, class_def, code_item, 660 method_access_flags, dex_pc); 661 } 662 } 663 } 664 } 665 666 const std::string host_prefix_; 667 const OatFile& oat_file_; 668 std::vector<const OatFile::OatDexFile*> oat_dex_files_; 669 std::set<uint32_t> offsets_; 670 UniquePtr<Disassembler> disassembler_; 671}; 672 673class ImageDumper { 674 public: 675 explicit ImageDumper(std::ostream* os, const std::string& image_filename, 676 const std::string& host_prefix, gc::space::ImageSpace& image_space, 677 const ImageHeader& image_header) 678 : os_(os), image_filename_(image_filename), host_prefix_(host_prefix), 679 image_space_(image_space), image_header_(image_header) {} 680 681 void Dump() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 682 std::ostream& os = *os_; 683 os << "MAGIC: " << image_header_.GetMagic() << "\n\n"; 684 685 os << "IMAGE BEGIN: " << reinterpret_cast<void*>(image_header_.GetImageBegin()) << "\n\n"; 686 687 os << "IMAGE BITMAP OFFSET: " << reinterpret_cast<void*>(image_header_.GetImageBitmapOffset()) 688 << " SIZE: " << reinterpret_cast<void*>(image_header_.GetImageBitmapSize()) << "\n\n"; 689 690 os << "OAT CHECKSUM: " << StringPrintf("0x%08x\n\n", image_header_.GetOatChecksum()); 691 692 os << "OAT FILE BEGIN:" << reinterpret_cast<void*>(image_header_.GetOatFileBegin()) << "\n\n"; 693 694 os << "OAT DATA BEGIN:" << reinterpret_cast<void*>(image_header_.GetOatDataBegin()) << "\n\n"; 695 696 os << "OAT DATA END:" << reinterpret_cast<void*>(image_header_.GetOatDataEnd()) << "\n\n"; 697 698 os << "OAT FILE END:" << reinterpret_cast<void*>(image_header_.GetOatFileEnd()) << "\n\n"; 699 700 { 701 os << "ROOTS: " << reinterpret_cast<void*>(image_header_.GetImageRoots()) << "\n"; 702 Indenter indent1_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 703 std::ostream indent1_os(&indent1_filter); 704 CHECK_EQ(arraysize(image_roots_descriptions_), size_t(ImageHeader::kImageRootsMax)); 705 for (int i = 0; i < ImageHeader::kImageRootsMax; i++) { 706 ImageHeader::ImageRoot image_root = static_cast<ImageHeader::ImageRoot>(i); 707 const char* image_root_description = image_roots_descriptions_[i]; 708 mirror::Object* image_root_object = image_header_.GetImageRoot(image_root); 709 indent1_os << StringPrintf("%s: %p\n", image_root_description, image_root_object); 710 if (image_root_object->IsObjectArray()) { 711 Indenter indent2_filter(indent1_os.rdbuf(), kIndentChar, kIndentBy1Count); 712 std::ostream indent2_os(&indent2_filter); 713 // TODO: replace down_cast with AsObjectArray (g++ currently has a problem with this) 714 mirror::ObjectArray<mirror::Object>* image_root_object_array 715 = down_cast<mirror::ObjectArray<mirror::Object>*>(image_root_object); 716 // = image_root_object->AsObjectArray<Object>(); 717 for (int i = 0; i < image_root_object_array->GetLength(); i++) { 718 mirror::Object* value = image_root_object_array->Get(i); 719 if (value != NULL) { 720 indent2_os << i << ": "; 721 PrettyObjectValue(indent2_os, value->GetClass(), value); 722 } else { 723 indent2_os << i << ": null\n"; 724 } 725 } 726 } 727 } 728 } 729 os << "\n"; 730 731 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 732 mirror::Object* oat_location_object = image_header_.GetImageRoot(ImageHeader::kOatLocation); 733 std::string oat_location(oat_location_object->AsString()->ToModifiedUtf8()); 734 os << "OAT LOCATION: " << oat_location; 735 if (!host_prefix_.empty()) { 736 oat_location = host_prefix_ + oat_location; 737 os << " (" << oat_location << ")"; 738 } 739 os << "\n"; 740 std::string error_msg; 741 const OatFile* oat_file = class_linker->FindOatFileFromOatLocation(oat_location, &error_msg); 742 if (oat_file == NULL) { 743 os << "NOT FOUND: " << error_msg << "\n"; 744 return; 745 } 746 os << "\n"; 747 748 stats_.oat_file_bytes = oat_file->Size(); 749 750 oat_dumper_.reset(new OatDumper(host_prefix_, *oat_file)); 751 752 for (const OatFile::OatDexFile* oat_dex_file : oat_file->GetOatDexFiles()) { 753 CHECK(oat_dex_file != NULL); 754 stats_.oat_dex_file_sizes.push_back(std::make_pair(oat_dex_file->GetDexFileLocation(), 755 oat_dex_file->FileSize())); 756 } 757 758 os << "OBJECTS:\n" << std::flush; 759 760 // Loop through all the image spaces and dump their objects. 761 gc::Heap* heap = Runtime::Current()->GetHeap(); 762 const std::vector<gc::space::ContinuousSpace*>& spaces = heap->GetContinuousSpaces(); 763 Thread* self = Thread::Current(); 764 { 765 WriterMutexLock mu(self, *Locks::heap_bitmap_lock_); 766 heap->FlushAllocStack(); 767 } 768 { 769 std::ostream* saved_os = os_; 770 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 771 std::ostream indent_os(&indent_filter); 772 os_ = &indent_os; 773 ReaderMutexLock mu(self, *Locks::heap_bitmap_lock_); 774 for (const auto& space : spaces) { 775 if (space->IsImageSpace()) { 776 gc::space::ImageSpace* image_space = space->AsImageSpace(); 777 image_space->GetLiveBitmap()->Walk(ImageDumper::Callback, this); 778 indent_os << "\n"; 779 } 780 } 781 // Dump the large objects separately. 782 heap->GetLargeObjectsSpace()->GetLiveObjects()->Walk(ImageDumper::Callback, this); 783 indent_os << "\n"; 784 os_ = saved_os; 785 } 786 os << "STATS:\n" << std::flush; 787 UniquePtr<File> file(OS::OpenFileForReading(image_filename_.c_str())); 788 if (file.get() == NULL) { 789 std::string cache_location(GetDalvikCacheFilenameOrDie(image_filename_.c_str())); 790 file.reset(OS::OpenFileForReading(cache_location.c_str())); 791 if (file.get() == NULL) { 792 LOG(WARNING) << "Failed to find image in " << image_filename_ 793 << " and " << cache_location; 794 } 795 } 796 if (file.get() != NULL) { 797 stats_.file_bytes = file->GetLength(); 798 } 799 size_t header_bytes = sizeof(ImageHeader); 800 stats_.header_bytes = header_bytes; 801 size_t alignment_bytes = RoundUp(header_bytes, kObjectAlignment) - header_bytes; 802 stats_.alignment_bytes += alignment_bytes; 803 stats_.alignment_bytes += image_header_.GetImageBitmapOffset() - image_header_.GetImageSize(); 804 stats_.bitmap_bytes += image_header_.GetImageBitmapSize(); 805 stats_.Dump(os); 806 os << "\n"; 807 808 os << std::flush; 809 810 oat_dumper_->Dump(os); 811 } 812 813 private: 814 static void PrettyObjectValue(std::ostream& os, mirror::Class* type, mirror::Object* value) 815 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 816 CHECK(type != NULL); 817 if (value == NULL) { 818 os << StringPrintf("null %s\n", PrettyDescriptor(type).c_str()); 819 } else if (type->IsStringClass()) { 820 mirror::String* string = value->AsString(); 821 os << StringPrintf("%p String: %s\n", string, 822 PrintableString(string->ToModifiedUtf8()).c_str()); 823 } else if (type->IsClassClass()) { 824 mirror::Class* klass = value->AsClass(); 825 os << StringPrintf("%p Class: %s\n", klass, PrettyDescriptor(klass).c_str()); 826 } else if (type->IsArtFieldClass()) { 827 mirror::ArtField* field = value->AsArtField(); 828 os << StringPrintf("%p Field: %s\n", field, PrettyField(field).c_str()); 829 } else if (type->IsArtMethodClass()) { 830 mirror::ArtMethod* method = value->AsArtMethod(); 831 os << StringPrintf("%p Method: %s\n", method, PrettyMethod(method).c_str()); 832 } else { 833 os << StringPrintf("%p %s\n", value, PrettyDescriptor(type).c_str()); 834 } 835 } 836 837 static void PrintField(std::ostream& os, mirror::ArtField* field, mirror::Object* obj) 838 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 839 FieldHelper fh(field); 840 const char* descriptor = fh.GetTypeDescriptor(); 841 os << StringPrintf("%s: ", fh.GetName()); 842 if (descriptor[0] != 'L' && descriptor[0] != '[') { 843 mirror::Class* type = fh.GetType(); 844 if (type->IsPrimitiveLong()) { 845 os << StringPrintf("%lld (0x%llx)\n", field->Get64(obj), field->Get64(obj)); 846 } else if (type->IsPrimitiveDouble()) { 847 os << StringPrintf("%f (%a)\n", field->GetDouble(obj), field->GetDouble(obj)); 848 } else if (type->IsPrimitiveFloat()) { 849 os << StringPrintf("%f (%a)\n", field->GetFloat(obj), field->GetFloat(obj)); 850 } else { 851 DCHECK(type->IsPrimitive()); 852 os << StringPrintf("%d (0x%x)\n", field->Get32(obj), field->Get32(obj)); 853 } 854 } else { 855 // Get the value, don't compute the type unless it is non-null as we don't want 856 // to cause class loading. 857 mirror::Object* value = field->GetObj(obj); 858 if (value == NULL) { 859 os << StringPrintf("null %s\n", PrettyDescriptor(descriptor).c_str()); 860 } else { 861 // Grab the field type without causing resolution. 862 mirror::Class* field_type = fh.GetType(false); 863 if (field_type != NULL) { 864 PrettyObjectValue(os, field_type, value); 865 } else { 866 os << StringPrintf("%p %s\n", value, PrettyDescriptor(descriptor).c_str()); 867 } 868 } 869 } 870 } 871 872 static void DumpFields(std::ostream& os, mirror::Object* obj, mirror::Class* klass) 873 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 874 mirror::Class* super = klass->GetSuperClass(); 875 if (super != NULL) { 876 DumpFields(os, obj, super); 877 } 878 mirror::ObjectArray<mirror::ArtField>* fields = klass->GetIFields(); 879 if (fields != NULL) { 880 for (int32_t i = 0; i < fields->GetLength(); i++) { 881 mirror::ArtField* field = fields->Get(i); 882 PrintField(os, field, obj); 883 } 884 } 885 } 886 887 bool InDumpSpace(const mirror::Object* object) { 888 return image_space_.Contains(object); 889 } 890 891 const void* GetOatCodeBegin(mirror::ArtMethod* m) 892 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 893 const void* code = m->GetEntryPointFromCompiledCode(); 894 if (code == GetResolutionTrampoline(Runtime::Current()->GetClassLinker())) { 895 code = oat_dumper_->GetOatCode(m); 896 } 897 if (oat_dumper_->GetInstructionSet() == kThumb2) { 898 code = reinterpret_cast<void*>(reinterpret_cast<uint32_t>(code) & ~0x1); 899 } 900 return code; 901 } 902 903 uint32_t GetOatCodeSize(mirror::ArtMethod* m) 904 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 905 const uint32_t* oat_code_begin = reinterpret_cast<const uint32_t*>(GetOatCodeBegin(m)); 906 if (oat_code_begin == NULL) { 907 return 0; 908 } 909 return oat_code_begin[-1]; 910 } 911 912 const void* GetOatCodeEnd(mirror::ArtMethod* m) 913 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 914 const uint8_t* oat_code_begin = reinterpret_cast<const uint8_t*>(GetOatCodeBegin(m)); 915 if (oat_code_begin == NULL) { 916 return NULL; 917 } 918 return oat_code_begin + GetOatCodeSize(m); 919 } 920 921 static void Callback(mirror::Object* obj, void* arg) 922 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 923 DCHECK(obj != NULL); 924 DCHECK(arg != NULL); 925 ImageDumper* state = reinterpret_cast<ImageDumper*>(arg); 926 if (!state->InDumpSpace(obj)) { 927 return; 928 } 929 930 size_t object_bytes = obj->SizeOf(); 931 size_t alignment_bytes = RoundUp(object_bytes, kObjectAlignment) - object_bytes; 932 state->stats_.object_bytes += object_bytes; 933 state->stats_.alignment_bytes += alignment_bytes; 934 935 std::ostream& os = *state->os_; 936 mirror::Class* obj_class = obj->GetClass(); 937 if (obj_class->IsArrayClass()) { 938 os << StringPrintf("%p: %s length:%d\n", obj, PrettyDescriptor(obj_class).c_str(), 939 obj->AsArray()->GetLength()); 940 } else if (obj->IsClass()) { 941 mirror::Class* klass = obj->AsClass(); 942 os << StringPrintf("%p: java.lang.Class \"%s\" (", obj, PrettyDescriptor(klass).c_str()) 943 << klass->GetStatus() << ")\n"; 944 } else if (obj->IsArtField()) { 945 os << StringPrintf("%p: java.lang.reflect.ArtField %s\n", obj, 946 PrettyField(obj->AsArtField()).c_str()); 947 } else if (obj->IsArtMethod()) { 948 os << StringPrintf("%p: java.lang.reflect.ArtMethod %s\n", obj, 949 PrettyMethod(obj->AsArtMethod()).c_str()); 950 } else if (obj_class->IsStringClass()) { 951 os << StringPrintf("%p: java.lang.String %s\n", obj, 952 PrintableString(obj->AsString()->ToModifiedUtf8()).c_str()); 953 } else { 954 os << StringPrintf("%p: %s\n", obj, PrettyDescriptor(obj_class).c_str()); 955 } 956 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 957 std::ostream indent_os(&indent_filter); 958 DumpFields(indent_os, obj, obj_class); 959 if (obj->IsObjectArray()) { 960 mirror::ObjectArray<mirror::Object>* obj_array = obj->AsObjectArray<mirror::Object>(); 961 int32_t length = obj_array->GetLength(); 962 for (int32_t i = 0; i < length; i++) { 963 mirror::Object* value = obj_array->Get(i); 964 size_t run = 0; 965 for (int32_t j = i + 1; j < length; j++) { 966 if (value == obj_array->Get(j)) { 967 run++; 968 } else { 969 break; 970 } 971 } 972 if (run == 0) { 973 indent_os << StringPrintf("%d: ", i); 974 } else { 975 indent_os << StringPrintf("%d to %zd: ", i, i + run); 976 i = i + run; 977 } 978 mirror::Class* value_class = value == NULL ? obj_class->GetComponentType() : value->GetClass(); 979 PrettyObjectValue(indent_os, value_class, value); 980 } 981 } else if (obj->IsClass()) { 982 mirror::ObjectArray<mirror::ArtField>* sfields = obj->AsClass()->GetSFields(); 983 if (sfields != NULL) { 984 indent_os << "STATICS:\n"; 985 Indenter indent2_filter(indent_os.rdbuf(), kIndentChar, kIndentBy1Count); 986 std::ostream indent2_os(&indent2_filter); 987 for (int32_t i = 0; i < sfields->GetLength(); i++) { 988 mirror::ArtField* field = sfields->Get(i); 989 PrintField(indent2_os, field, field->GetDeclaringClass()); 990 } 991 } 992 } else if (obj->IsArtMethod()) { 993 mirror::ArtMethod* method = obj->AsArtMethod(); 994 if (method->IsNative()) { 995 DCHECK(method->GetNativeGcMap() == NULL) << PrettyMethod(method); 996 DCHECK(method->GetMappingTable() == NULL) << PrettyMethod(method); 997 bool first_occurrence; 998 const void* oat_code = state->GetOatCodeBegin(method); 999 uint32_t oat_code_size = state->GetOatCodeSize(method); 1000 state->ComputeOatSize(oat_code, &first_occurrence); 1001 if (first_occurrence) { 1002 state->stats_.native_to_managed_code_bytes += oat_code_size; 1003 } 1004 if (oat_code != method->GetEntryPointFromCompiledCode()) { 1005 indent_os << StringPrintf("OAT CODE: %p\n", oat_code); 1006 } 1007 } else if (method->IsAbstract() || method->IsCalleeSaveMethod() || 1008 method->IsResolutionMethod() || MethodHelper(method).IsClassInitializer()) { 1009 DCHECK(method->GetNativeGcMap() == NULL) << PrettyMethod(method); 1010 DCHECK(method->GetMappingTable() == NULL) << PrettyMethod(method); 1011 } else { 1012 // TODO: we check there is a GC map here, we may not have a GC map if the code is pointing 1013 // to the quick/portable to interpreter bridge. 1014 CHECK(method->GetNativeGcMap() != NULL) << PrettyMethod(method); 1015 1016 const DexFile::CodeItem* code_item = MethodHelper(method).GetCodeItem(); 1017 size_t dex_instruction_bytes = code_item->insns_size_in_code_units_ * 2; 1018 state->stats_.dex_instruction_bytes += dex_instruction_bytes; 1019 1020 bool first_occurrence; 1021 size_t gc_map_bytes = state->ComputeOatSize(method->GetNativeGcMap(), &first_occurrence); 1022 if (first_occurrence) { 1023 state->stats_.gc_map_bytes += gc_map_bytes; 1024 } 1025 1026 size_t pc_mapping_table_bytes = 1027 state->ComputeOatSize(method->GetMappingTable(), &first_occurrence); 1028 if (first_occurrence) { 1029 state->stats_.pc_mapping_table_bytes += pc_mapping_table_bytes; 1030 } 1031 1032 size_t vmap_table_bytes = 1033 state->ComputeOatSize(method->GetVmapTable(), &first_occurrence); 1034 if (first_occurrence) { 1035 state->stats_.vmap_table_bytes += vmap_table_bytes; 1036 } 1037 1038 const void* oat_code_begin = state->GetOatCodeBegin(method); 1039 const void* oat_code_end = state->GetOatCodeEnd(method); 1040 uint32_t oat_code_size = state->GetOatCodeSize(method); 1041 state->ComputeOatSize(oat_code_begin, &first_occurrence); 1042 if (first_occurrence) { 1043 state->stats_.managed_code_bytes += oat_code_size; 1044 if (method->IsConstructor()) { 1045 if (method->IsStatic()) { 1046 state->stats_.class_initializer_code_bytes += oat_code_size; 1047 } else if (dex_instruction_bytes > kLargeConstructorDexBytes) { 1048 state->stats_.large_initializer_code_bytes += oat_code_size; 1049 } 1050 } else if (dex_instruction_bytes > kLargeMethodDexBytes) { 1051 state->stats_.large_method_code_bytes += oat_code_size; 1052 } 1053 } 1054 state->stats_.managed_code_bytes_ignoring_deduplication += oat_code_size; 1055 1056 indent_os << StringPrintf("OAT CODE: %p-%p\n", oat_code_begin, oat_code_end); 1057 indent_os << StringPrintf("SIZE: Dex Instructions=%zd GC=%zd Mapping=%zd\n", 1058 dex_instruction_bytes, gc_map_bytes, pc_mapping_table_bytes); 1059 1060 size_t total_size = dex_instruction_bytes + gc_map_bytes + pc_mapping_table_bytes + 1061 vmap_table_bytes + oat_code_size + object_bytes; 1062 1063 double expansion = 1064 static_cast<double>(oat_code_size) / static_cast<double>(dex_instruction_bytes); 1065 state->stats_.ComputeOutliers(total_size, expansion, method); 1066 } 1067 } 1068 state->stats_.Update(ClassHelper(obj_class).GetDescriptor(), object_bytes); 1069 } 1070 1071 std::set<const void*> already_seen_; 1072 // Compute the size of the given data within the oat file and whether this is the first time 1073 // this data has been requested 1074 size_t ComputeOatSize(const void* oat_data, bool* first_occurrence) { 1075 if (already_seen_.count(oat_data) == 0) { 1076 *first_occurrence = true; 1077 already_seen_.insert(oat_data); 1078 } else { 1079 *first_occurrence = false; 1080 } 1081 return oat_dumper_->ComputeSize(oat_data); 1082 } 1083 1084 public: 1085 struct Stats { 1086 size_t oat_file_bytes; 1087 size_t file_bytes; 1088 1089 size_t header_bytes; 1090 size_t object_bytes; 1091 size_t bitmap_bytes; 1092 size_t alignment_bytes; 1093 1094 size_t managed_code_bytes; 1095 size_t managed_code_bytes_ignoring_deduplication; 1096 size_t managed_to_native_code_bytes; 1097 size_t native_to_managed_code_bytes; 1098 size_t class_initializer_code_bytes; 1099 size_t large_initializer_code_bytes; 1100 size_t large_method_code_bytes; 1101 1102 size_t gc_map_bytes; 1103 size_t pc_mapping_table_bytes; 1104 size_t vmap_table_bytes; 1105 1106 size_t dex_instruction_bytes; 1107 1108 std::vector<mirror::ArtMethod*> method_outlier; 1109 std::vector<size_t> method_outlier_size; 1110 std::vector<double> method_outlier_expansion; 1111 std::vector<std::pair<std::string, size_t> > oat_dex_file_sizes; 1112 1113 explicit Stats() 1114 : oat_file_bytes(0), 1115 file_bytes(0), 1116 header_bytes(0), 1117 object_bytes(0), 1118 bitmap_bytes(0), 1119 alignment_bytes(0), 1120 managed_code_bytes(0), 1121 managed_code_bytes_ignoring_deduplication(0), 1122 managed_to_native_code_bytes(0), 1123 native_to_managed_code_bytes(0), 1124 class_initializer_code_bytes(0), 1125 large_initializer_code_bytes(0), 1126 large_method_code_bytes(0), 1127 gc_map_bytes(0), 1128 pc_mapping_table_bytes(0), 1129 vmap_table_bytes(0), 1130 dex_instruction_bytes(0) {} 1131 1132 struct SizeAndCount { 1133 SizeAndCount(size_t bytes, size_t count) : bytes(bytes), count(count) {} 1134 size_t bytes; 1135 size_t count; 1136 }; 1137 typedef SafeMap<std::string, SizeAndCount> SizeAndCountTable; 1138 SizeAndCountTable sizes_and_counts; 1139 1140 void Update(const char* descriptor, size_t object_bytes) { 1141 SizeAndCountTable::iterator it = sizes_and_counts.find(descriptor); 1142 if (it != sizes_and_counts.end()) { 1143 it->second.bytes += object_bytes; 1144 it->second.count += 1; 1145 } else { 1146 sizes_and_counts.Put(descriptor, SizeAndCount(object_bytes, 1)); 1147 } 1148 } 1149 1150 double PercentOfOatBytes(size_t size) { 1151 return (static_cast<double>(size) / static_cast<double>(oat_file_bytes)) * 100; 1152 } 1153 1154 double PercentOfFileBytes(size_t size) { 1155 return (static_cast<double>(size) / static_cast<double>(file_bytes)) * 100; 1156 } 1157 1158 double PercentOfObjectBytes(size_t size) { 1159 return (static_cast<double>(size) / static_cast<double>(object_bytes)) * 100; 1160 } 1161 1162 void ComputeOutliers(size_t total_size, double expansion, mirror::ArtMethod* method) { 1163 method_outlier_size.push_back(total_size); 1164 method_outlier_expansion.push_back(expansion); 1165 method_outlier.push_back(method); 1166 } 1167 1168 void DumpOutliers(std::ostream& os) 1169 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1170 size_t sum_of_sizes = 0; 1171 size_t sum_of_sizes_squared = 0; 1172 size_t sum_of_expansion = 0; 1173 size_t sum_of_expansion_squared = 0; 1174 size_t n = method_outlier_size.size(); 1175 for (size_t i = 0; i < n; i++) { 1176 size_t cur_size = method_outlier_size[i]; 1177 sum_of_sizes += cur_size; 1178 sum_of_sizes_squared += cur_size * cur_size; 1179 double cur_expansion = method_outlier_expansion[i]; 1180 sum_of_expansion += cur_expansion; 1181 sum_of_expansion_squared += cur_expansion * cur_expansion; 1182 } 1183 size_t size_mean = sum_of_sizes / n; 1184 size_t size_variance = (sum_of_sizes_squared - sum_of_sizes * size_mean) / (n - 1); 1185 double expansion_mean = sum_of_expansion / n; 1186 double expansion_variance = 1187 (sum_of_expansion_squared - sum_of_expansion * expansion_mean) / (n - 1); 1188 1189 // Dump methods whose size is a certain number of standard deviations from the mean 1190 size_t dumped_values = 0; 1191 size_t skipped_values = 0; 1192 for (size_t i = 100; i > 0; i--) { // i is the current number of standard deviations 1193 size_t cur_size_variance = i * i * size_variance; 1194 bool first = true; 1195 for (size_t j = 0; j < n; j++) { 1196 size_t cur_size = method_outlier_size[j]; 1197 if (cur_size > size_mean) { 1198 size_t cur_var = cur_size - size_mean; 1199 cur_var = cur_var * cur_var; 1200 if (cur_var > cur_size_variance) { 1201 if (dumped_values > 20) { 1202 if (i == 1) { 1203 skipped_values++; 1204 } else { 1205 i = 2; // jump to counting for 1 standard deviation 1206 break; 1207 } 1208 } else { 1209 if (first) { 1210 os << "\nBig methods (size > " << i << " standard deviations the norm):\n"; 1211 first = false; 1212 } 1213 os << PrettyMethod(method_outlier[j]) << " requires storage of " 1214 << PrettySize(cur_size) << "\n"; 1215 method_outlier_size[j] = 0; // don't consider this method again 1216 dumped_values++; 1217 } 1218 } 1219 } 1220 } 1221 } 1222 if (skipped_values > 0) { 1223 os << "... skipped " << skipped_values 1224 << " methods with size > 1 standard deviation from the norm\n"; 1225 } 1226 os << std::flush; 1227 1228 // Dump methods whose expansion is a certain number of standard deviations from the mean 1229 dumped_values = 0; 1230 skipped_values = 0; 1231 for (size_t i = 10; i > 0; i--) { // i is the current number of standard deviations 1232 double cur_expansion_variance = i * i * expansion_variance; 1233 bool first = true; 1234 for (size_t j = 0; j < n; j++) { 1235 double cur_expansion = method_outlier_expansion[j]; 1236 if (cur_expansion > expansion_mean) { 1237 size_t cur_var = cur_expansion - expansion_mean; 1238 cur_var = cur_var * cur_var; 1239 if (cur_var > cur_expansion_variance) { 1240 if (dumped_values > 20) { 1241 if (i == 1) { 1242 skipped_values++; 1243 } else { 1244 i = 2; // jump to counting for 1 standard deviation 1245 break; 1246 } 1247 } else { 1248 if (first) { 1249 os << "\nLarge expansion methods (size > " << i 1250 << " standard deviations the norm):\n"; 1251 first = false; 1252 } 1253 os << PrettyMethod(method_outlier[j]) << " expanded code by " 1254 << cur_expansion << "\n"; 1255 method_outlier_expansion[j] = 0.0; // don't consider this method again 1256 dumped_values++; 1257 } 1258 } 1259 } 1260 } 1261 } 1262 if (skipped_values > 0) { 1263 os << "... skipped " << skipped_values 1264 << " methods with expansion > 1 standard deviation from the norm\n"; 1265 } 1266 os << "\n" << std::flush; 1267 } 1268 1269 void Dump(std::ostream& os) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1270 { 1271 os << "art_file_bytes = " << PrettySize(file_bytes) << "\n\n" 1272 << "art_file_bytes = header_bytes + object_bytes + alignment_bytes\n"; 1273 Indenter indent_filter(os.rdbuf(), kIndentChar, kIndentBy1Count); 1274 std::ostream indent_os(&indent_filter); 1275 indent_os << StringPrintf("header_bytes = %8zd (%2.0f%% of art file bytes)\n" 1276 "object_bytes = %8zd (%2.0f%% of art file bytes)\n" 1277 "bitmap_bytes = %8zd (%2.0f%% of art file bytes)\n" 1278 "alignment_bytes = %8zd (%2.0f%% of art file bytes)\n\n", 1279 header_bytes, PercentOfFileBytes(header_bytes), 1280 object_bytes, PercentOfFileBytes(object_bytes), 1281 bitmap_bytes, PercentOfFileBytes(bitmap_bytes), 1282 alignment_bytes, PercentOfFileBytes(alignment_bytes)) 1283 << std::flush; 1284 CHECK_EQ(file_bytes, bitmap_bytes + header_bytes + object_bytes + alignment_bytes); 1285 } 1286 1287 os << "object_bytes breakdown:\n"; 1288 size_t object_bytes_total = 0; 1289 for (const auto& sizes_and_count : sizes_and_counts) { 1290 const std::string& descriptor(sizes_and_count.first); 1291 double average = static_cast<double>(sizes_and_count.second.bytes) / 1292 static_cast<double>(sizes_and_count.second.count); 1293 double percent = PercentOfObjectBytes(sizes_and_count.second.bytes); 1294 os << StringPrintf("%32s %8zd bytes %6zd instances " 1295 "(%4.0f bytes/instance) %2.0f%% of object_bytes\n", 1296 descriptor.c_str(), sizes_and_count.second.bytes, 1297 sizes_and_count.second.count, average, percent); 1298 object_bytes_total += sizes_and_count.second.bytes; 1299 } 1300 os << "\n" << std::flush; 1301 CHECK_EQ(object_bytes, object_bytes_total); 1302 1303 os << StringPrintf("oat_file_bytes = %8zd\n" 1304 "managed_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1305 "managed_to_native_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1306 "native_to_managed_code_bytes = %8zd (%2.0f%% of oat file bytes)\n\n" 1307 "class_initializer_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1308 "large_initializer_code_bytes = %8zd (%2.0f%% of oat file bytes)\n" 1309 "large_method_code_bytes = %8zd (%2.0f%% of oat file bytes)\n\n", 1310 oat_file_bytes, 1311 managed_code_bytes, PercentOfOatBytes(managed_code_bytes), 1312 managed_to_native_code_bytes, PercentOfOatBytes(managed_to_native_code_bytes), 1313 native_to_managed_code_bytes, PercentOfOatBytes(native_to_managed_code_bytes), 1314 class_initializer_code_bytes, PercentOfOatBytes(class_initializer_code_bytes), 1315 large_initializer_code_bytes, PercentOfOatBytes(large_initializer_code_bytes), 1316 large_method_code_bytes, PercentOfOatBytes(large_method_code_bytes)) 1317 << "DexFile sizes:\n"; 1318 for (const std::pair<std::string, size_t>& oat_dex_file_size : oat_dex_file_sizes) { 1319 os << StringPrintf("%s = %zd (%2.0f%% of oat file bytes)\n", 1320 oat_dex_file_size.first.c_str(), oat_dex_file_size.second, 1321 PercentOfOatBytes(oat_dex_file_size.second)); 1322 } 1323 1324 os << "\n" << StringPrintf("gc_map_bytes = %7zd (%2.0f%% of oat file bytes)\n" 1325 "pc_mapping_table_bytes = %7zd (%2.0f%% of oat file bytes)\n" 1326 "vmap_table_bytes = %7zd (%2.0f%% of oat file bytes)\n\n", 1327 gc_map_bytes, PercentOfOatBytes(gc_map_bytes), 1328 pc_mapping_table_bytes, PercentOfOatBytes(pc_mapping_table_bytes), 1329 vmap_table_bytes, PercentOfOatBytes(vmap_table_bytes)) 1330 << std::flush; 1331 1332 os << StringPrintf("dex_instruction_bytes = %zd\n", dex_instruction_bytes) 1333 << StringPrintf("managed_code_bytes expansion = %.2f (ignoring deduplication %.2f)\n\n", 1334 static_cast<double>(managed_code_bytes) / static_cast<double>(dex_instruction_bytes), 1335 static_cast<double>(managed_code_bytes_ignoring_deduplication) / 1336 static_cast<double>(dex_instruction_bytes)) 1337 << std::flush; 1338 1339 DumpOutliers(os); 1340 } 1341 } stats_; 1342 1343 private: 1344 enum { 1345 // Number of bytes for a constructor to be considered large. Based on the 1000 basic block 1346 // threshold, we assume 2 bytes per instruction and 2 instructions per block. 1347 kLargeConstructorDexBytes = 4000, 1348 // Number of bytes for a method to be considered large. Based on the 4000 basic block 1349 // threshold, we assume 2 bytes per instruction and 2 instructions per block. 1350 kLargeMethodDexBytes = 16000 1351 }; 1352 UniquePtr<OatDumper> oat_dumper_; 1353 std::ostream* os_; 1354 const std::string image_filename_; 1355 const std::string host_prefix_; 1356 gc::space::ImageSpace& image_space_; 1357 const ImageHeader& image_header_; 1358 1359 DISALLOW_COPY_AND_ASSIGN(ImageDumper); 1360}; 1361 1362static int oatdump(int argc, char** argv) { 1363 InitLogging(argv); 1364 1365 // Skip over argv[0]. 1366 argv++; 1367 argc--; 1368 1369 if (argc == 0) { 1370 fprintf(stderr, "No arguments specified\n"); 1371 usage(); 1372 } 1373 1374 const char* oat_filename = NULL; 1375 const char* image_filename = NULL; 1376 const char* boot_image_filename = NULL; 1377 std::string elf_filename_prefix; 1378 UniquePtr<std::string> host_prefix; 1379 std::ostream* os = &std::cout; 1380 UniquePtr<std::ofstream> out; 1381 1382 for (int i = 0; i < argc; i++) { 1383 const StringPiece option(argv[i]); 1384 if (option.starts_with("--oat-file=")) { 1385 oat_filename = option.substr(strlen("--oat-file=")).data(); 1386 } else if (option.starts_with("--image=")) { 1387 image_filename = option.substr(strlen("--image=")).data(); 1388 } else if (option.starts_with("--boot-image=")) { 1389 boot_image_filename = option.substr(strlen("--boot-image=")).data(); 1390 } else if (option.starts_with("--host-prefix=")) { 1391 host_prefix.reset(new std::string(option.substr(strlen("--host-prefix=")).data())); 1392 } else if (option.starts_with("--output=")) { 1393 const char* filename = option.substr(strlen("--output=")).data(); 1394 out.reset(new std::ofstream(filename)); 1395 if (!out->good()) { 1396 fprintf(stderr, "Failed to open output filename %s\n", filename); 1397 usage(); 1398 } 1399 os = out.get(); 1400 } else { 1401 fprintf(stderr, "Unknown argument %s\n", option.data()); 1402 usage(); 1403 } 1404 } 1405 1406 if (image_filename == NULL && oat_filename == NULL) { 1407 fprintf(stderr, "Either --image or --oat must be specified\n"); 1408 return EXIT_FAILURE; 1409 } 1410 1411 if (image_filename != NULL && oat_filename != NULL) { 1412 fprintf(stderr, "Either --image or --oat must be specified but not both\n"); 1413 return EXIT_FAILURE; 1414 } 1415 1416 if (host_prefix.get() == NULL) { 1417 const char* android_product_out = getenv("ANDROID_PRODUCT_OUT"); 1418 if (android_product_out != NULL) { 1419 host_prefix.reset(new std::string(android_product_out)); 1420 } else { 1421 host_prefix.reset(new std::string("")); 1422 } 1423 } 1424 1425 if (oat_filename != NULL) { 1426 std::string error_msg; 1427 OatFile* oat_file = 1428 OatFile::Open(oat_filename, oat_filename, NULL, false, &error_msg); 1429 if (oat_file == NULL) { 1430 fprintf(stderr, "Failed to open oat file from '%s': %s\n", oat_filename, error_msg.c_str()); 1431 return EXIT_FAILURE; 1432 } 1433 OatDumper oat_dumper(*host_prefix.get(), *oat_file); 1434 oat_dumper.Dump(*os); 1435 return EXIT_SUCCESS; 1436 } 1437 1438 Runtime::Options options; 1439 std::string image_option; 1440 std::string oat_option; 1441 std::string boot_image_option; 1442 std::string boot_oat_option; 1443 1444 // We are more like a compiler than a run-time. We don't want to execute code. 1445 options.push_back(std::make_pair("compiler", reinterpret_cast<void*>(NULL))); 1446 1447 if (boot_image_filename != NULL) { 1448 boot_image_option += "-Ximage:"; 1449 boot_image_option += boot_image_filename; 1450 options.push_back(std::make_pair(boot_image_option.c_str(), reinterpret_cast<void*>(NULL))); 1451 } 1452 if (image_filename != NULL) { 1453 image_option += "-Ximage:"; 1454 image_option += image_filename; 1455 options.push_back(std::make_pair(image_option.c_str(), reinterpret_cast<void*>(NULL))); 1456 } 1457 1458 if (!host_prefix->empty()) { 1459 options.push_back(std::make_pair("host-prefix", host_prefix->c_str())); 1460 } 1461 1462 if (!Runtime::Create(options, false)) { 1463 fprintf(stderr, "Failed to create runtime\n"); 1464 return EXIT_FAILURE; 1465 } 1466 UniquePtr<Runtime> runtime(Runtime::Current()); 1467 // Runtime::Create acquired the mutator_lock_ that is normally given away when we Runtime::Start, 1468 // give it away now and then switch to a more managable ScopedObjectAccess. 1469 Thread::Current()->TransitionFromRunnableToSuspended(kNative); 1470 ScopedObjectAccess soa(Thread::Current()); 1471 1472 gc::Heap* heap = Runtime::Current()->GetHeap(); 1473 gc::space::ImageSpace* image_space = heap->GetImageSpace(); 1474 CHECK(image_space != NULL); 1475 const ImageHeader& image_header = image_space->GetImageHeader(); 1476 if (!image_header.IsValid()) { 1477 fprintf(stderr, "Invalid image header %s\n", image_filename); 1478 return EXIT_FAILURE; 1479 } 1480 ImageDumper image_dumper(os, image_filename, *host_prefix.get(), *image_space, image_header); 1481 image_dumper.Dump(); 1482 return EXIT_SUCCESS; 1483} 1484 1485} // namespace art 1486 1487int main(int argc, char** argv) { 1488 return art::oatdump(argc, argv); 1489} 1490