1 /* 2 * Copyright (C) 2015 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 "offline_profiling_info.h" 18 19 #include "errno.h" 20 #include <limits.h> 21 #include <vector> 22 #include <sys/file.h> 23 #include <sys/stat.h> 24 #include <sys/uio.h> 25 26 #include "art_method-inl.h" 27 #include "base/mutex.h" 28 #include "base/scoped_flock.h" 29 #include "base/stl_util.h" 30 #include "base/systrace.h" 31 #include "base/unix_file/fd_file.h" 32 #include "jit/profiling_info.h" 33 #include "os.h" 34 #include "safe_map.h" 35 36 namespace art { 37 38 const uint8_t ProfileCompilationInfo::kProfileMagic[] = { 'p', 'r', 'o', '\0' }; 39 const uint8_t ProfileCompilationInfo::kProfileVersion[] = { '0', '0', '1', '\0' }; 40 41 static constexpr uint16_t kMaxDexFileKeyLength = PATH_MAX; 42 43 // Transform the actual dex location into relative paths. 44 // Note: this is OK because we don't store profiles of different apps into the same file. 45 // Apps with split apks don't cause trouble because each split has a different name and will not 46 // collide with other entries. 47 std::string ProfileCompilationInfo::GetProfileDexFileKey(const std::string& dex_location) { 48 DCHECK(!dex_location.empty()); 49 size_t last_sep_index = dex_location.find_last_of('/'); 50 if (last_sep_index == std::string::npos) { 51 return dex_location; 52 } else { 53 DCHECK(last_sep_index < dex_location.size()); 54 return dex_location.substr(last_sep_index + 1); 55 } 56 } 57 58 bool ProfileCompilationInfo::AddMethodsAndClasses( 59 const std::vector<MethodReference>& methods, 60 const std::set<DexCacheResolvedClasses>& resolved_classes) { 61 for (const MethodReference& method : methods) { 62 if (!AddMethodIndex(GetProfileDexFileKey(method.dex_file->GetLocation()), 63 method.dex_file->GetLocationChecksum(), 64 method.dex_method_index)) { 65 return false; 66 } 67 } 68 for (const DexCacheResolvedClasses& dex_cache : resolved_classes) { 69 if (!AddResolvedClasses(dex_cache)) { 70 return false; 71 } 72 } 73 return true; 74 } 75 76 bool ProfileCompilationInfo::MergeAndSave(const std::string& filename, 77 uint64_t* bytes_written, 78 bool force) { 79 ScopedTrace trace(__PRETTY_FUNCTION__); 80 ScopedFlock flock; 81 std::string error; 82 if (!flock.Init(filename.c_str(), O_RDWR | O_NOFOLLOW | O_CLOEXEC, /* block */ false, &error)) { 83 LOG(WARNING) << "Couldn't lock the profile file " << filename << ": " << error; 84 return false; 85 } 86 87 int fd = flock.GetFile()->Fd(); 88 89 // Load the file but keep a copy around to be able to infer if the content has changed. 90 ProfileCompilationInfo fileInfo; 91 ProfileLoadSatus status = fileInfo.LoadInternal(fd, &error); 92 if (status == kProfileLoadSuccess) { 93 // Merge the content of file into the current object. 94 if (MergeWith(fileInfo)) { 95 // If after the merge we have the same data as what is the file there's no point 96 // in actually doing the write. The file will be exactly the same as before. 97 if (Equals(fileInfo)) { 98 if (bytes_written != nullptr) { 99 *bytes_written = 0; 100 } 101 return true; 102 } 103 } else { 104 LOG(WARNING) << "Could not merge previous profile data from file " << filename; 105 if (!force) { 106 return false; 107 } 108 } 109 } else if (force && 110 ((status == kProfileLoadVersionMismatch) || (status == kProfileLoadBadData))) { 111 // Log a warning but don't return false. We will clear the profile anyway. 112 LOG(WARNING) << "Clearing bad or obsolete profile data from file " 113 << filename << ": " << error; 114 } else { 115 LOG(WARNING) << "Could not load profile data from file " << filename << ": " << error; 116 return false; 117 } 118 119 // We need to clear the data because we don't support appending to the profiles yet. 120 if (!flock.GetFile()->ClearContent()) { 121 PLOG(WARNING) << "Could not clear profile file: " << filename; 122 return false; 123 } 124 125 // This doesn't need locking because we are trying to lock the file for exclusive 126 // access and fail immediately if we can't. 127 bool result = Save(fd); 128 if (result) { 129 VLOG(profiler) << "Successfully saved profile info to " << filename 130 << " Size: " << GetFileSizeBytes(filename); 131 if (bytes_written != nullptr) { 132 *bytes_written = GetFileSizeBytes(filename); 133 } 134 } else { 135 VLOG(profiler) << "Failed to save profile info to " << filename; 136 } 137 return result; 138 } 139 140 // Returns true if all the bytes were successfully written to the file descriptor. 141 static bool WriteBuffer(int fd, const uint8_t* buffer, size_t byte_count) { 142 while (byte_count > 0) { 143 int bytes_written = TEMP_FAILURE_RETRY(write(fd, buffer, byte_count)); 144 if (bytes_written == -1) { 145 return false; 146 } 147 byte_count -= bytes_written; // Reduce the number of remaining bytes. 148 buffer += bytes_written; // Move the buffer forward. 149 } 150 return true; 151 } 152 153 // Add the string bytes to the buffer. 154 static void AddStringToBuffer(std::vector<uint8_t>* buffer, const std::string& value) { 155 buffer->insert(buffer->end(), value.begin(), value.end()); 156 } 157 158 // Insert each byte, from low to high into the buffer. 159 template <typename T> 160 static void AddUintToBuffer(std::vector<uint8_t>* buffer, T value) { 161 for (size_t i = 0; i < sizeof(T); i++) { 162 buffer->push_back((value >> (i * kBitsPerByte)) & 0xff); 163 } 164 } 165 166 static constexpr size_t kLineHeaderSize = 167 3 * sizeof(uint16_t) + // method_set.size + class_set.size + dex_location.size 168 sizeof(uint32_t); // checksum 169 170 /** 171 * Serialization format: 172 * magic,version,number_of_lines 173 * dex_location1,number_of_methods1,number_of_classes1,dex_location_checksum1, \ 174 * method_id11,method_id12...,class_id1,class_id2... 175 * dex_location2,number_of_methods2,number_of_classes2,dex_location_checksum2, \ 176 * method_id21,method_id22...,,class_id1,class_id2... 177 * ..... 178 **/ 179 bool ProfileCompilationInfo::Save(int fd) { 180 ScopedTrace trace(__PRETTY_FUNCTION__); 181 DCHECK_GE(fd, 0); 182 183 // Cache at most 5KB before writing. 184 static constexpr size_t kMaxSizeToKeepBeforeWriting = 5 * KB; 185 // Use a vector wrapper to avoid keeping track of offsets when we add elements. 186 std::vector<uint8_t> buffer; 187 WriteBuffer(fd, kProfileMagic, sizeof(kProfileMagic)); 188 WriteBuffer(fd, kProfileVersion, sizeof(kProfileVersion)); 189 AddUintToBuffer(&buffer, static_cast<uint16_t>(info_.size())); 190 191 for (const auto& it : info_) { 192 if (buffer.size() > kMaxSizeToKeepBeforeWriting) { 193 if (!WriteBuffer(fd, buffer.data(), buffer.size())) { 194 return false; 195 } 196 buffer.clear(); 197 } 198 const std::string& dex_location = it.first; 199 const DexFileData& dex_data = it.second; 200 if (dex_data.method_set.empty() && dex_data.class_set.empty()) { 201 continue; 202 } 203 204 if (dex_location.size() >= kMaxDexFileKeyLength) { 205 LOG(WARNING) << "DexFileKey exceeds allocated limit"; 206 return false; 207 } 208 209 // Make sure that the buffer has enough capacity to avoid repeated resizings 210 // while we add data. 211 size_t required_capacity = buffer.size() + 212 kLineHeaderSize + 213 dex_location.size() + 214 sizeof(uint16_t) * (dex_data.class_set.size() + dex_data.method_set.size()); 215 216 buffer.reserve(required_capacity); 217 218 DCHECK_LE(dex_location.size(), std::numeric_limits<uint16_t>::max()); 219 DCHECK_LE(dex_data.method_set.size(), std::numeric_limits<uint16_t>::max()); 220 DCHECK_LE(dex_data.class_set.size(), std::numeric_limits<uint16_t>::max()); 221 AddUintToBuffer(&buffer, static_cast<uint16_t>(dex_location.size())); 222 AddUintToBuffer(&buffer, static_cast<uint16_t>(dex_data.method_set.size())); 223 AddUintToBuffer(&buffer, static_cast<uint16_t>(dex_data.class_set.size())); 224 AddUintToBuffer(&buffer, dex_data.checksum); // uint32_t 225 226 AddStringToBuffer(&buffer, dex_location); 227 228 for (auto method_it : dex_data.method_set) { 229 AddUintToBuffer(&buffer, method_it); 230 } 231 for (auto class_id : dex_data.class_set) { 232 AddUintToBuffer(&buffer, class_id); 233 } 234 DCHECK_EQ(required_capacity, buffer.size()) 235 << "Failed to add the expected number of bytes in the buffer"; 236 } 237 238 return WriteBuffer(fd, buffer.data(), buffer.size()); 239 } 240 241 ProfileCompilationInfo::DexFileData* ProfileCompilationInfo::GetOrAddDexFileData( 242 const std::string& dex_location, 243 uint32_t checksum) { 244 auto info_it = info_.find(dex_location); 245 if (info_it == info_.end()) { 246 info_it = info_.Put(dex_location, DexFileData(checksum)); 247 } 248 if (info_it->second.checksum != checksum) { 249 LOG(WARNING) << "Checksum mismatch for dex " << dex_location; 250 return nullptr; 251 } 252 return &info_it->second; 253 } 254 255 bool ProfileCompilationInfo::AddResolvedClasses(const DexCacheResolvedClasses& classes) { 256 const std::string dex_location = GetProfileDexFileKey(classes.GetDexLocation()); 257 const uint32_t checksum = classes.GetLocationChecksum(); 258 DexFileData* const data = GetOrAddDexFileData(dex_location, checksum); 259 if (data == nullptr) { 260 return false; 261 } 262 data->class_set.insert(classes.GetClasses().begin(), classes.GetClasses().end()); 263 return true; 264 } 265 266 bool ProfileCompilationInfo::AddMethodIndex(const std::string& dex_location, 267 uint32_t checksum, 268 uint16_t method_idx) { 269 DexFileData* const data = GetOrAddDexFileData(dex_location, checksum); 270 if (data == nullptr) { 271 return false; 272 } 273 data->method_set.insert(method_idx); 274 return true; 275 } 276 277 bool ProfileCompilationInfo::AddClassIndex(const std::string& dex_location, 278 uint32_t checksum, 279 uint16_t class_idx) { 280 DexFileData* const data = GetOrAddDexFileData(dex_location, checksum); 281 if (data == nullptr) { 282 return false; 283 } 284 data->class_set.insert(class_idx); 285 return true; 286 } 287 288 bool ProfileCompilationInfo::ProcessLine(SafeBuffer& line_buffer, 289 uint16_t method_set_size, 290 uint16_t class_set_size, 291 uint32_t checksum, 292 const std::string& dex_location) { 293 for (uint16_t i = 0; i < method_set_size; i++) { 294 uint16_t method_idx = line_buffer.ReadUintAndAdvance<uint16_t>(); 295 if (!AddMethodIndex(dex_location, checksum, method_idx)) { 296 return false; 297 } 298 } 299 300 for (uint16_t i = 0; i < class_set_size; i++) { 301 uint16_t class_def_idx = line_buffer.ReadUintAndAdvance<uint16_t>(); 302 if (!AddClassIndex(dex_location, checksum, class_def_idx)) { 303 return false; 304 } 305 } 306 return true; 307 } 308 309 // Tests for EOF by trying to read 1 byte from the descriptor. 310 // Returns: 311 // 0 if the descriptor is at the EOF, 312 // -1 if there was an IO error 313 // 1 if the descriptor has more content to read 314 static int testEOF(int fd) { 315 uint8_t buffer[1]; 316 return TEMP_FAILURE_RETRY(read(fd, buffer, 1)); 317 } 318 319 // Reads an uint value previously written with AddUintToBuffer. 320 template <typename T> 321 T ProfileCompilationInfo::SafeBuffer::ReadUintAndAdvance() { 322 static_assert(std::is_unsigned<T>::value, "Type is not unsigned"); 323 CHECK_LE(ptr_current_ + sizeof(T), ptr_end_); 324 T value = 0; 325 for (size_t i = 0; i < sizeof(T); i++) { 326 value += ptr_current_[i] << (i * kBitsPerByte); 327 } 328 ptr_current_ += sizeof(T); 329 return value; 330 } 331 332 bool ProfileCompilationInfo::SafeBuffer::CompareAndAdvance(const uint8_t* data, size_t data_size) { 333 if (ptr_current_ + data_size > ptr_end_) { 334 return false; 335 } 336 if (memcmp(ptr_current_, data, data_size) == 0) { 337 ptr_current_ += data_size; 338 return true; 339 } 340 return false; 341 } 342 343 ProfileCompilationInfo::ProfileLoadSatus ProfileCompilationInfo::SafeBuffer::FillFromFd( 344 int fd, 345 const std::string& source, 346 /*out*/std::string* error) { 347 size_t byte_count = ptr_end_ - ptr_current_; 348 uint8_t* buffer = ptr_current_; 349 while (byte_count > 0) { 350 int bytes_read = TEMP_FAILURE_RETRY(read(fd, buffer, byte_count)); 351 if (bytes_read == 0) { 352 *error += "Profile EOF reached prematurely for " + source; 353 return kProfileLoadBadData; 354 } else if (bytes_read < 0) { 355 *error += "Profile IO error for " + source + strerror(errno); 356 return kProfileLoadIOError; 357 } 358 byte_count -= bytes_read; 359 buffer += bytes_read; 360 } 361 return kProfileLoadSuccess; 362 } 363 364 ProfileCompilationInfo::ProfileLoadSatus ProfileCompilationInfo::ReadProfileHeader( 365 int fd, 366 /*out*/uint16_t* number_of_lines, 367 /*out*/std::string* error) { 368 // Read magic and version 369 const size_t kMagicVersionSize = 370 sizeof(kProfileMagic) + 371 sizeof(kProfileVersion) + 372 sizeof(uint16_t); // number of lines 373 374 SafeBuffer safe_buffer(kMagicVersionSize); 375 376 ProfileLoadSatus status = safe_buffer.FillFromFd(fd, "ReadProfileHeader", error); 377 if (status != kProfileLoadSuccess) { 378 return status; 379 } 380 381 if (!safe_buffer.CompareAndAdvance(kProfileMagic, sizeof(kProfileMagic))) { 382 *error = "Profile missing magic"; 383 return kProfileLoadVersionMismatch; 384 } 385 if (!safe_buffer.CompareAndAdvance(kProfileVersion, sizeof(kProfileVersion))) { 386 *error = "Profile version mismatch"; 387 return kProfileLoadVersionMismatch; 388 } 389 *number_of_lines = safe_buffer.ReadUintAndAdvance<uint16_t>(); 390 return kProfileLoadSuccess; 391 } 392 393 ProfileCompilationInfo::ProfileLoadSatus ProfileCompilationInfo::ReadProfileLineHeader( 394 int fd, 395 /*out*/ProfileLineHeader* line_header, 396 /*out*/std::string* error) { 397 SafeBuffer header_buffer(kLineHeaderSize); 398 ProfileLoadSatus status = header_buffer.FillFromFd(fd, "ReadProfileHeader", error); 399 if (status != kProfileLoadSuccess) { 400 return status; 401 } 402 403 uint16_t dex_location_size = header_buffer.ReadUintAndAdvance<uint16_t>(); 404 line_header->method_set_size = header_buffer.ReadUintAndAdvance<uint16_t>(); 405 line_header->class_set_size = header_buffer.ReadUintAndAdvance<uint16_t>(); 406 line_header->checksum = header_buffer.ReadUintAndAdvance<uint32_t>(); 407 408 if (dex_location_size == 0 || dex_location_size > kMaxDexFileKeyLength) { 409 *error = "DexFileKey has an invalid size: " + std::to_string(dex_location_size); 410 return kProfileLoadBadData; 411 } 412 413 SafeBuffer location_buffer(dex_location_size); 414 status = location_buffer.FillFromFd(fd, "ReadProfileHeaderDexLocation", error); 415 if (status != kProfileLoadSuccess) { 416 return status; 417 } 418 line_header->dex_location.assign( 419 reinterpret_cast<char*>(location_buffer.Get()), dex_location_size); 420 return kProfileLoadSuccess; 421 } 422 423 ProfileCompilationInfo::ProfileLoadSatus ProfileCompilationInfo::ReadProfileLine( 424 int fd, 425 const ProfileLineHeader& line_header, 426 /*out*/std::string* error) { 427 // Make sure that we don't try to read everything in memory (in case the profile if full). 428 // Split readings in chunks of at most 10kb. 429 static constexpr uint16_t kMaxNumberOfEntriesToRead = 5120; 430 uint16_t methods_left_to_read = line_header.method_set_size; 431 uint16_t classes_left_to_read = line_header.class_set_size; 432 433 while ((methods_left_to_read > 0) || (classes_left_to_read > 0)) { 434 uint16_t methods_to_read = std::min(kMaxNumberOfEntriesToRead, methods_left_to_read); 435 uint16_t max_classes_to_read = kMaxNumberOfEntriesToRead - methods_to_read; 436 uint16_t classes_to_read = std::min(max_classes_to_read, classes_left_to_read); 437 438 size_t line_size = sizeof(uint16_t) * (methods_to_read + classes_to_read); 439 SafeBuffer line_buffer(line_size); 440 441 ProfileLoadSatus status = line_buffer.FillFromFd(fd, "ReadProfileLine", error); 442 if (status != kProfileLoadSuccess) { 443 return status; 444 } 445 if (!ProcessLine(line_buffer, 446 methods_to_read, 447 classes_to_read, 448 line_header.checksum, 449 line_header.dex_location)) { 450 *error = "Error when reading profile file line"; 451 return kProfileLoadBadData; 452 } 453 methods_left_to_read -= methods_to_read; 454 classes_left_to_read -= classes_to_read; 455 } 456 return kProfileLoadSuccess; 457 } 458 459 bool ProfileCompilationInfo::Load(int fd) { 460 std::string error; 461 ProfileLoadSatus status = LoadInternal(fd, &error); 462 463 if (status == kProfileLoadSuccess) { 464 return true; 465 } else { 466 PLOG(WARNING) << "Error when reading profile " << error; 467 return false; 468 } 469 } 470 471 ProfileCompilationInfo::ProfileLoadSatus ProfileCompilationInfo::LoadInternal( 472 int fd, std::string* error) { 473 ScopedTrace trace(__PRETTY_FUNCTION__); 474 DCHECK_GE(fd, 0); 475 476 struct stat stat_buffer; 477 if (fstat(fd, &stat_buffer) != 0) { 478 return kProfileLoadIOError; 479 } 480 // We allow empty profile files. 481 // Profiles may be created by ActivityManager or installd before we manage to 482 // process them in the runtime or profman. 483 if (stat_buffer.st_size == 0) { 484 return kProfileLoadSuccess; 485 } 486 // Read profile header: magic + version + number_of_lines. 487 uint16_t number_of_lines; 488 ProfileLoadSatus status = ReadProfileHeader(fd, &number_of_lines, error); 489 if (status != kProfileLoadSuccess) { 490 return status; 491 } 492 493 while (number_of_lines > 0) { 494 ProfileLineHeader line_header; 495 // First, read the line header to get the amount of data we need to read. 496 status = ReadProfileLineHeader(fd, &line_header, error); 497 if (status != kProfileLoadSuccess) { 498 return status; 499 } 500 501 // Now read the actual profile line. 502 status = ReadProfileLine(fd, line_header, error); 503 if (status != kProfileLoadSuccess) { 504 return status; 505 } 506 number_of_lines--; 507 } 508 509 // Check that we read everything and that profiles don't contain junk data. 510 int result = testEOF(fd); 511 if (result == 0) { 512 return kProfileLoadSuccess; 513 } else if (result < 0) { 514 return kProfileLoadIOError; 515 } else { 516 *error = "Unexpected content in the profile file"; 517 return kProfileLoadBadData; 518 } 519 } 520 521 bool ProfileCompilationInfo::MergeWith(const ProfileCompilationInfo& other) { 522 // First verify that all checksums match. This will avoid adding garbage to 523 // the current profile info. 524 // Note that the number of elements should be very small, so this should not 525 // be a performance issue. 526 for (const auto& other_it : other.info_) { 527 auto info_it = info_.find(other_it.first); 528 if ((info_it != info_.end()) && (info_it->second.checksum != other_it.second.checksum)) { 529 LOG(WARNING) << "Checksum mismatch for dex " << other_it.first; 530 return false; 531 } 532 } 533 // All checksums match. Import the data. 534 for (const auto& other_it : other.info_) { 535 const std::string& other_dex_location = other_it.first; 536 const DexFileData& other_dex_data = other_it.second; 537 auto info_it = info_.find(other_dex_location); 538 if (info_it == info_.end()) { 539 info_it = info_.Put(other_dex_location, DexFileData(other_dex_data.checksum)); 540 } 541 info_it->second.method_set.insert(other_dex_data.method_set.begin(), 542 other_dex_data.method_set.end()); 543 info_it->second.class_set.insert(other_dex_data.class_set.begin(), 544 other_dex_data.class_set.end()); 545 } 546 return true; 547 } 548 549 bool ProfileCompilationInfo::ContainsMethod(const MethodReference& method_ref) const { 550 auto info_it = info_.find(GetProfileDexFileKey(method_ref.dex_file->GetLocation())); 551 if (info_it != info_.end()) { 552 if (method_ref.dex_file->GetLocationChecksum() != info_it->second.checksum) { 553 return false; 554 } 555 const std::set<uint16_t>& methods = info_it->second.method_set; 556 return methods.find(method_ref.dex_method_index) != methods.end(); 557 } 558 return false; 559 } 560 561 bool ProfileCompilationInfo::ContainsClass(const DexFile& dex_file, uint16_t class_def_idx) const { 562 auto info_it = info_.find(GetProfileDexFileKey(dex_file.GetLocation())); 563 if (info_it != info_.end()) { 564 if (dex_file.GetLocationChecksum() != info_it->second.checksum) { 565 return false; 566 } 567 const std::set<uint16_t>& classes = info_it->second.class_set; 568 return classes.find(class_def_idx) != classes.end(); 569 } 570 return false; 571 } 572 573 uint32_t ProfileCompilationInfo::GetNumberOfMethods() const { 574 uint32_t total = 0; 575 for (const auto& it : info_) { 576 total += it.second.method_set.size(); 577 } 578 return total; 579 } 580 581 uint32_t ProfileCompilationInfo::GetNumberOfResolvedClasses() const { 582 uint32_t total = 0; 583 for (const auto& it : info_) { 584 total += it.second.class_set.size(); 585 } 586 return total; 587 } 588 589 std::string ProfileCompilationInfo::DumpInfo(const std::vector<const DexFile*>* dex_files, 590 bool print_full_dex_location) const { 591 std::ostringstream os; 592 if (info_.empty()) { 593 return "ProfileInfo: empty"; 594 } 595 596 os << "ProfileInfo:"; 597 598 const std::string kFirstDexFileKeySubstitute = ":classes.dex"; 599 for (const auto& it : info_) { 600 os << "\n"; 601 const std::string& location = it.first; 602 const DexFileData& dex_data = it.second; 603 if (print_full_dex_location) { 604 os << location; 605 } else { 606 // Replace the (empty) multidex suffix of the first key with a substitute for easier reading. 607 std::string multidex_suffix = DexFile::GetMultiDexSuffix(location); 608 os << (multidex_suffix.empty() ? kFirstDexFileKeySubstitute : multidex_suffix); 609 } 610 const DexFile* dex_file = nullptr; 611 if (dex_files != nullptr) { 612 for (size_t i = 0; i < dex_files->size(); i++) { 613 if (location == (*dex_files)[i]->GetLocation()) { 614 dex_file = (*dex_files)[i]; 615 } 616 } 617 } 618 os << "\n\tmethods: "; 619 for (const auto method_it : dex_data.method_set) { 620 if (dex_file != nullptr) { 621 os << "\n\t\t" << PrettyMethod(method_it, *dex_file, true); 622 } else { 623 os << method_it << ","; 624 } 625 } 626 os << "\n\tclasses: "; 627 for (const auto class_it : dex_data.class_set) { 628 if (dex_file != nullptr) { 629 os << "\n\t\t" << dex_file->GetClassDescriptor(dex_file->GetClassDef(class_it)); 630 } else { 631 os << class_it << ","; 632 } 633 } 634 } 635 return os.str(); 636 } 637 638 bool ProfileCompilationInfo::Equals(const ProfileCompilationInfo& other) { 639 return info_.Equals(other.info_); 640 } 641 642 std::set<DexCacheResolvedClasses> ProfileCompilationInfo::GetResolvedClasses() const { 643 std::set<DexCacheResolvedClasses> ret; 644 for (auto&& pair : info_) { 645 const std::string& profile_key = pair.first; 646 const DexFileData& data = pair.second; 647 // TODO: Is it OK to use the same location for both base and dex location here? 648 DexCacheResolvedClasses classes(profile_key, profile_key, data.checksum); 649 classes.AddClasses(data.class_set.begin(), data.class_set.end()); 650 ret.insert(classes); 651 } 652 return ret; 653 } 654 655 void ProfileCompilationInfo::ClearResolvedClasses() { 656 for (auto& pair : info_) { 657 pair.second.class_set.clear(); 658 } 659 } 660 661 } // namespace art 662