dex2oat.cc revision 4f59668b3d51f63601ebe59dbd2b7e8a7c5bd093
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#include <sys/stat.h> 20#include <valgrind.h> 21 22#include <fstream> 23#include <iostream> 24#include <sstream> 25#include <string> 26#include <vector> 27 28#include "base/stl_util.h" 29#include "base/stringpiece.h" 30#include "base/timing_logger.h" 31#include "base/unix_file/fd_file.h" 32#include "class_linker.h" 33#include "compiler.h" 34#include "compiler_callbacks.h" 35#include "dex_file-inl.h" 36#include "dex/pass_driver_me.h" 37#include "dex/verification_results.h" 38#include "driver/compiler_callbacks_impl.h" 39#include "driver/compiler_driver.h" 40#include "driver/compiler_options.h" 41#include "elf_fixup.h" 42#include "elf_stripper.h" 43#include "gc/space/image_space.h" 44#include "gc/space/space-inl.h" 45#include "image_writer.h" 46#include "leb128.h" 47#include "mirror/art_method-inl.h" 48#include "mirror/class-inl.h" 49#include "mirror/class_loader.h" 50#include "mirror/object-inl.h" 51#include "mirror/object_array-inl.h" 52#include "oat_writer.h" 53#include "object_utils.h" 54#include "os.h" 55#include "runtime.h" 56#include "ScopedLocalRef.h" 57#include "scoped_thread_state_change.h" 58#include "vector_output_stream.h" 59#include "well_known_classes.h" 60#include "zip_archive.h" 61 62namespace art { 63 64static int original_argc; 65static char** original_argv; 66 67static std::string CommandLine() { 68 std::vector<std::string> command; 69 for (int i = 0; i < original_argc; ++i) { 70 command.push_back(original_argv[i]); 71 } 72 return Join(command, ' '); 73} 74 75static void UsageErrorV(const char* fmt, va_list ap) { 76 std::string error; 77 StringAppendV(&error, fmt, ap); 78 LOG(ERROR) << error; 79} 80 81static void UsageError(const char* fmt, ...) { 82 va_list ap; 83 va_start(ap, fmt); 84 UsageErrorV(fmt, ap); 85 va_end(ap); 86} 87 88static void Usage(const char* fmt, ...) { 89 va_list ap; 90 va_start(ap, fmt); 91 UsageErrorV(fmt, ap); 92 va_end(ap); 93 94 UsageError("Command: %s", CommandLine().c_str()); 95 96 UsageError("Usage: dex2oat [options]..."); 97 UsageError(""); 98 UsageError(" --dex-file=<dex-file>: specifies a .dex file to compile."); 99 UsageError(" Example: --dex-file=/system/framework/core.jar"); 100 UsageError(""); 101 UsageError(" --zip-fd=<file-descriptor>: specifies a file descriptor of a zip file"); 102 UsageError(" containing a classes.dex file to compile."); 103 UsageError(" Example: --zip-fd=5"); 104 UsageError(""); 105 UsageError(" --zip-location=<zip-location>: specifies a symbolic name for the file"); 106 UsageError(" corresponding to the file descriptor specified by --zip-fd."); 107 UsageError(" Example: --zip-location=/system/app/Calculator.apk"); 108 UsageError(""); 109 UsageError(" --oat-file=<file.oat>: specifies the oat output destination via a filename."); 110 UsageError(" Example: --oat-file=/system/framework/boot.oat"); 111 UsageError(""); 112 UsageError(" --oat-fd=<number>: specifies the oat output destination via a file descriptor."); 113 UsageError(" Example: --oat-fd=6"); 114 UsageError(""); 115 UsageError(" --oat-location=<oat-name>: specifies a symbolic name for the file corresponding"); 116 UsageError(" to the file descriptor specified by --oat-fd."); 117 UsageError(" Example: --oat-location=/data/dalvik-cache/system@app@Calculator.apk.oat"); 118 UsageError(""); 119 UsageError(" --oat-symbols=<file.oat>: specifies the oat output destination with full symbols."); 120 UsageError(" Example: --oat-symbols=/symbols/system/framework/boot.oat"); 121 UsageError(""); 122 UsageError(" --bitcode=<file.bc>: specifies the optional bitcode filename."); 123 UsageError(" Example: --bitcode=/system/framework/boot.bc"); 124 UsageError(""); 125 UsageError(" --image=<file.art>: specifies the output image filename."); 126 UsageError(" Example: --image=/system/framework/boot.art"); 127 UsageError(""); 128 UsageError(" --image-classes=<classname-file>: specifies classes to include in an image."); 129 UsageError(" Example: --image=frameworks/base/preloaded-classes"); 130 UsageError(""); 131 UsageError(" --base=<hex-address>: specifies the base address when creating a boot image."); 132 UsageError(" Example: --base=0x50000000"); 133 UsageError(""); 134 UsageError(" --boot-image=<file.art>: provide the image file for the boot class path."); 135 UsageError(" Example: --boot-image=/system/framework/boot.art"); 136 UsageError(" Default: $ANDROID_ROOT/system/framework/boot.art"); 137 UsageError(""); 138 UsageError(" --android-root=<path>: used to locate libraries for portable linking."); 139 UsageError(" Example: --android-root=out/host/linux-x86"); 140 UsageError(" Default: $ANDROID_ROOT"); 141 UsageError(""); 142 UsageError(" --instruction-set=(arm|arm64|mips|x86|x86_64): compile for a particular instruction"); 143 UsageError(" set."); 144 UsageError(" Example: --instruction-set=x86"); 145 UsageError(" Default: arm"); 146 UsageError(""); 147 UsageError(" --instruction-set-features=...,: Specify instruction set features"); 148 UsageError(" Example: --instruction-set-features=div"); 149 UsageError(" Default: default"); 150 UsageError(""); 151 UsageError(" --compiler-backend=(Quick|Optimizing|Portable): select compiler backend"); 152 UsageError(" set."); 153 UsageError(" Example: --compiler-backend=Portable"); 154 UsageError(" Default: Quick"); 155 UsageError(""); 156 UsageError(" --compiler-filter=(verify-none|interpret-only|space|balanced|speed|everything):"); 157 UsageError(" select compiler filter."); 158 UsageError(" Example: --compiler-filter=everything"); 159#if ART_SMALL_MODE 160 UsageError(" Default: interpret-only"); 161#else 162 UsageError(" Default: speed"); 163#endif 164 UsageError(""); 165 UsageError(" --huge-method-max=<method-instruction-count>: the threshold size for a huge"); 166 UsageError(" method for compiler filter tuning."); 167 UsageError(" Example: --huge-method-max=%d", CompilerOptions::kDefaultHugeMethodThreshold); 168 UsageError(" Default: %d", CompilerOptions::kDefaultHugeMethodThreshold); 169 UsageError(""); 170 UsageError(" --huge-method-max=<method-instruction-count>: threshold size for a huge"); 171 UsageError(" method for compiler filter tuning."); 172 UsageError(" Example: --huge-method-max=%d", CompilerOptions::kDefaultHugeMethodThreshold); 173 UsageError(" Default: %d", CompilerOptions::kDefaultHugeMethodThreshold); 174 UsageError(""); 175 UsageError(" --large-method-max=<method-instruction-count>: threshold size for a large"); 176 UsageError(" method for compiler filter tuning."); 177 UsageError(" Example: --large-method-max=%d", CompilerOptions::kDefaultLargeMethodThreshold); 178 UsageError(" Default: %d", CompilerOptions::kDefaultLargeMethodThreshold); 179 UsageError(""); 180 UsageError(" --small-method-max=<method-instruction-count>: threshold size for a small"); 181 UsageError(" method for compiler filter tuning."); 182 UsageError(" Example: --small-method-max=%d", CompilerOptions::kDefaultSmallMethodThreshold); 183 UsageError(" Default: %d", CompilerOptions::kDefaultSmallMethodThreshold); 184 UsageError(""); 185 UsageError(" --tiny-method-max=<method-instruction-count>: threshold size for a tiny"); 186 UsageError(" method for compiler filter tuning."); 187 UsageError(" Example: --tiny-method-max=%d", CompilerOptions::kDefaultTinyMethodThreshold); 188 UsageError(" Default: %d", CompilerOptions::kDefaultTinyMethodThreshold); 189 UsageError(""); 190 UsageError(" --num-dex-methods=<method-count>: threshold size for a small dex file for"); 191 UsageError(" compiler filter tuning. If the input has fewer than this many methods"); 192 UsageError(" and the filter is not interpret-only or verify-none, overrides the"); 193 UsageError(" filter to use speed"); 194 UsageError(" Example: --num-dex-method=%d", CompilerOptions::kDefaultNumDexMethodsThreshold); 195 UsageError(" Default: %d", CompilerOptions::kDefaultNumDexMethodsThreshold); 196 UsageError(""); 197 UsageError(" --host: used with Portable backend to link against host runtime libraries"); 198 UsageError(""); 199 UsageError(" --dump-timing: display a breakdown of where time was spent"); 200 UsageError(""); 201 UsageError(" --runtime-arg <argument>: used to specify various arguments for the runtime,"); 202 UsageError(" such as initial heap size, maximum heap size, and verbose output."); 203 UsageError(" Use a separate --runtime-arg switch for each argument."); 204 UsageError(" Example: --runtime-arg -Xms256m"); 205 UsageError(""); 206 UsageError(" --profile-file=<filename>: specify profiler output file to use for compilation."); 207 UsageError(""); 208 UsageError(" --print-pass-names: print a list of pass names"); 209 UsageError(""); 210 UsageError(" --disable-passes=<pass-names>: disable one or more passes separated by comma."); 211 UsageError(" Example: --disable-passes=UseCount,BBOptimizations"); 212 UsageError(""); 213 std::cerr << "See log for usage error information\n"; 214 exit(EXIT_FAILURE); 215} 216 217class Dex2Oat { 218 public: 219 static bool Create(Dex2Oat** p_dex2oat, 220 const Runtime::Options& runtime_options, 221 const CompilerOptions& compiler_options, 222 Compiler::Kind compiler_kind, 223 InstructionSet instruction_set, 224 InstructionSetFeatures instruction_set_features, 225 VerificationResults* verification_results, 226 DexFileToMethodInlinerMap* method_inliner_map, 227 size_t thread_count) 228 SHARED_TRYLOCK_FUNCTION(true, Locks::mutator_lock_) { 229 CHECK(verification_results != nullptr); 230 CHECK(method_inliner_map != nullptr); 231 std::unique_ptr<Dex2Oat> dex2oat(new Dex2Oat(&compiler_options, 232 compiler_kind, 233 instruction_set, 234 instruction_set_features, 235 verification_results, 236 method_inliner_map, 237 thread_count)); 238 if (!dex2oat->CreateRuntime(runtime_options, instruction_set)) { 239 *p_dex2oat = nullptr; 240 return false; 241 } 242 *p_dex2oat = dex2oat.release(); 243 return true; 244 } 245 246 ~Dex2Oat() { 247 delete runtime_; 248 LogCompletionTime(); 249 } 250 251 void LogCompletionTime() { 252 LOG(INFO) << "dex2oat took " << PrettyDuration(NanoTime() - start_ns_) 253 << " (threads: " << thread_count_ << ")"; 254 } 255 256 257 // Reads the class names (java.lang.Object) and returns a set of descriptors (Ljava/lang/Object;) 258 CompilerDriver::DescriptorSet* ReadImageClassesFromFile(const char* image_classes_filename) { 259 std::unique_ptr<std::ifstream> image_classes_file(new std::ifstream(image_classes_filename, 260 std::ifstream::in)); 261 if (image_classes_file.get() == nullptr) { 262 LOG(ERROR) << "Failed to open image classes file " << image_classes_filename; 263 return nullptr; 264 } 265 std::unique_ptr<CompilerDriver::DescriptorSet> result(ReadImageClasses(*image_classes_file.get())); 266 image_classes_file->close(); 267 return result.release(); 268 } 269 270 CompilerDriver::DescriptorSet* ReadImageClasses(std::istream& image_classes_stream) { 271 std::unique_ptr<CompilerDriver::DescriptorSet> image_classes(new CompilerDriver::DescriptorSet); 272 while (image_classes_stream.good()) { 273 std::string dot; 274 std::getline(image_classes_stream, dot); 275 if (StartsWith(dot, "#") || dot.empty()) { 276 continue; 277 } 278 std::string descriptor(DotToDescriptor(dot.c_str())); 279 image_classes->insert(descriptor); 280 } 281 return image_classes.release(); 282 } 283 284 // Reads the class names (java.lang.Object) and returns a set of descriptors (Ljava/lang/Object;) 285 CompilerDriver::DescriptorSet* ReadImageClassesFromZip(const char* zip_filename, 286 const char* image_classes_filename, 287 std::string* error_msg) { 288 std::unique_ptr<ZipArchive> zip_archive(ZipArchive::Open(zip_filename, error_msg)); 289 if (zip_archive.get() == nullptr) { 290 return nullptr; 291 } 292 std::unique_ptr<ZipEntry> zip_entry(zip_archive->Find(image_classes_filename, error_msg)); 293 if (zip_entry.get() == nullptr) { 294 *error_msg = StringPrintf("Failed to find '%s' within '%s': %s", image_classes_filename, 295 zip_filename, error_msg->c_str()); 296 return nullptr; 297 } 298 std::unique_ptr<MemMap> image_classes_file(zip_entry->ExtractToMemMap(image_classes_filename, 299 error_msg)); 300 if (image_classes_file.get() == nullptr) { 301 *error_msg = StringPrintf("Failed to extract '%s' from '%s': %s", image_classes_filename, 302 zip_filename, error_msg->c_str()); 303 return nullptr; 304 } 305 const std::string image_classes_string(reinterpret_cast<char*>(image_classes_file->Begin()), 306 image_classes_file->Size()); 307 std::istringstream image_classes_stream(image_classes_string); 308 return ReadImageClasses(image_classes_stream); 309 } 310 311 const CompilerDriver* CreateOatFile(const std::string& boot_image_option, 312 const std::string& android_root, 313 bool is_host, 314 const std::vector<const DexFile*>& dex_files, 315 File* oat_file, 316 const std::string& bitcode_filename, 317 bool image, 318 std::unique_ptr<CompilerDriver::DescriptorSet>& image_classes, 319 bool dump_stats, 320 bool dump_passes, 321 TimingLogger& timings, 322 CumulativeLogger& compiler_phases_timings, 323 std::string profile_file) { 324 // Handle and ClassLoader creation needs to come after Runtime::Create 325 jobject class_loader = nullptr; 326 Thread* self = Thread::Current(); 327 if (!boot_image_option.empty()) { 328 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 329 std::vector<const DexFile*> class_path_files(dex_files); 330 OpenClassPathFiles(runtime_->GetClassPathString(), class_path_files); 331 ScopedObjectAccess soa(self); 332 for (size_t i = 0; i < class_path_files.size(); i++) { 333 class_linker->RegisterDexFile(*class_path_files[i]); 334 } 335 soa.Env()->AllocObject(WellKnownClasses::dalvik_system_PathClassLoader); 336 ScopedLocalRef<jobject> class_loader_local(soa.Env(), 337 soa.Env()->AllocObject(WellKnownClasses::dalvik_system_PathClassLoader)); 338 class_loader = soa.Env()->NewGlobalRef(class_loader_local.get()); 339 Runtime::Current()->SetCompileTimeClassPath(class_loader, class_path_files); 340 } 341 342 std::unique_ptr<CompilerDriver> driver(new CompilerDriver(compiler_options_, 343 verification_results_, 344 method_inliner_map_, 345 compiler_kind_, 346 instruction_set_, 347 instruction_set_features_, 348 image, 349 image_classes.release(), 350 thread_count_, 351 dump_stats, 352 dump_passes, 353 &compiler_phases_timings, 354 profile_file)); 355 356 driver->GetCompiler()->SetBitcodeFileName(*driver.get(), bitcode_filename); 357 358 driver->CompileAll(class_loader, dex_files, &timings); 359 360 timings.NewSplit("dex2oat OatWriter"); 361 std::string image_file_location; 362 uint32_t image_file_location_oat_checksum = 0; 363 uintptr_t image_file_location_oat_data_begin = 0; 364 if (!driver->IsImage()) { 365 TimingLogger::ScopedSplit split("Loading image checksum", &timings); 366 gc::space::ImageSpace* image_space = Runtime::Current()->GetHeap()->GetImageSpace(); 367 image_file_location_oat_checksum = image_space->GetImageHeader().GetOatChecksum(); 368 image_file_location_oat_data_begin = 369 reinterpret_cast<uintptr_t>(image_space->GetImageHeader().GetOatDataBegin()); 370 image_file_location = image_space->GetImageFilename(); 371 } 372 373 OatWriter oat_writer(dex_files, 374 image_file_location_oat_checksum, 375 image_file_location_oat_data_begin, 376 image_file_location, 377 driver.get(), 378 &timings); 379 380 TimingLogger::ScopedSplit split("Writing ELF", &timings); 381 if (!driver->WriteElf(android_root, is_host, dex_files, &oat_writer, oat_file)) { 382 LOG(ERROR) << "Failed to write ELF file " << oat_file->GetPath(); 383 return nullptr; 384 } 385 386 return driver.release(); 387 } 388 389 bool CreateImageFile(const std::string& image_filename, 390 uintptr_t image_base, 391 const std::string& oat_filename, 392 const std::string& oat_location, 393 const CompilerDriver& compiler) 394 LOCKS_EXCLUDED(Locks::mutator_lock_) { 395 uintptr_t oat_data_begin; 396 { 397 // ImageWriter is scoped so it can free memory before doing FixupElf 398 ImageWriter image_writer(compiler); 399 if (!image_writer.Write(image_filename, image_base, oat_filename, oat_location)) { 400 LOG(ERROR) << "Failed to create image file " << image_filename; 401 return false; 402 } 403 oat_data_begin = image_writer.GetOatDataBegin(); 404 } 405 406 std::unique_ptr<File> oat_file(OS::OpenFileReadWrite(oat_filename.c_str())); 407 if (oat_file.get() == nullptr) { 408 PLOG(ERROR) << "Failed to open ELF file: " << oat_filename; 409 return false; 410 } 411 if (!ElfFixup::Fixup(oat_file.get(), oat_data_begin)) { 412 LOG(ERROR) << "Failed to fixup ELF file " << oat_file->GetPath(); 413 return false; 414 } 415 return true; 416 } 417 418 private: 419 explicit Dex2Oat(const CompilerOptions* compiler_options, 420 Compiler::Kind compiler_kind, 421 InstructionSet instruction_set, 422 InstructionSetFeatures instruction_set_features, 423 VerificationResults* verification_results, 424 DexFileToMethodInlinerMap* method_inliner_map, 425 size_t thread_count) 426 : compiler_options_(compiler_options), 427 compiler_kind_(compiler_kind), 428 instruction_set_(instruction_set), 429 instruction_set_features_(instruction_set_features), 430 verification_results_(verification_results), 431 method_inliner_map_(method_inliner_map), 432 runtime_(nullptr), 433 thread_count_(thread_count), 434 start_ns_(NanoTime()) { 435 CHECK(compiler_options != nullptr); 436 CHECK(verification_results != nullptr); 437 CHECK(method_inliner_map != nullptr); 438 } 439 440 bool CreateRuntime(const Runtime::Options& runtime_options, InstructionSet instruction_set) 441 SHARED_TRYLOCK_FUNCTION(true, Locks::mutator_lock_) { 442 if (!Runtime::Create(runtime_options, false)) { 443 LOG(ERROR) << "Failed to create runtime"; 444 return false; 445 } 446 Runtime* runtime = Runtime::Current(); 447 runtime->SetInstructionSet(instruction_set); 448 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) { 449 Runtime::CalleeSaveType type = Runtime::CalleeSaveType(i); 450 if (!runtime->HasCalleeSaveMethod(type)) { 451 runtime->SetCalleeSaveMethod(runtime->CreateCalleeSaveMethod(type), type); 452 } 453 } 454 runtime->GetClassLinker()->FixupDexCaches(runtime->GetResolutionMethod()); 455 runtime_ = runtime; 456 return true; 457 } 458 459 // Appends to dex_files any elements of class_path that it doesn't already 460 // contain. This will open those dex files as necessary. 461 static void OpenClassPathFiles(const std::string& class_path, 462 std::vector<const DexFile*>& dex_files) { 463 std::vector<std::string> parsed; 464 Split(class_path, ':', parsed); 465 // Take Locks::mutator_lock_ so that lock ordering on the ClassLinker::dex_lock_ is maintained. 466 ScopedObjectAccess soa(Thread::Current()); 467 for (size_t i = 0; i < parsed.size(); ++i) { 468 if (DexFilesContains(dex_files, parsed[i])) { 469 continue; 470 } 471 std::string error_msg; 472 const DexFile* dex_file = DexFile::Open(parsed[i].c_str(), parsed[i].c_str(), &error_msg); 473 if (dex_file == nullptr) { 474 LOG(WARNING) << "Failed to open dex file '" << parsed[i] << "': " << error_msg; 475 } else { 476 dex_files.push_back(dex_file); 477 } 478 } 479 } 480 481 // Returns true if dex_files has a dex with the named location. 482 static bool DexFilesContains(const std::vector<const DexFile*>& dex_files, 483 const std::string& location) { 484 for (size_t i = 0; i < dex_files.size(); ++i) { 485 if (dex_files[i]->GetLocation() == location) { 486 return true; 487 } 488 } 489 return false; 490 } 491 492 const CompilerOptions* const compiler_options_; 493 const Compiler::Kind compiler_kind_; 494 495 const InstructionSet instruction_set_; 496 const InstructionSetFeatures instruction_set_features_; 497 498 VerificationResults* const verification_results_; 499 DexFileToMethodInlinerMap* const method_inliner_map_; 500 Runtime* runtime_; 501 size_t thread_count_; 502 uint64_t start_ns_; 503 504 DISALLOW_IMPLICIT_CONSTRUCTORS(Dex2Oat); 505}; 506 507static bool ParseInt(const char* in, int* out) { 508 char* end; 509 int result = strtol(in, &end, 10); 510 if (in == end || *end != '\0') { 511 return false; 512 } 513 *out = result; 514 return true; 515} 516 517static size_t OpenDexFiles(const std::vector<const char*>& dex_filenames, 518 const std::vector<const char*>& dex_locations, 519 std::vector<const DexFile*>& dex_files) { 520 size_t failure_count = 0; 521 for (size_t i = 0; i < dex_filenames.size(); i++) { 522 const char* dex_filename = dex_filenames[i]; 523 const char* dex_location = dex_locations[i]; 524 ATRACE_BEGIN(StringPrintf("Opening dex file '%s'", dex_filenames[i]).c_str()); 525 std::string error_msg; 526 if (!OS::FileExists(dex_filename)) { 527 LOG(WARNING) << "Skipping non-existent dex file '" << dex_filename << "'"; 528 continue; 529 } 530 const DexFile* dex_file = DexFile::Open(dex_filename, dex_location, &error_msg); 531 if (dex_file == nullptr) { 532 LOG(WARNING) << "Failed to open .dex from file '" << dex_filename << "': " << error_msg; 533 ++failure_count; 534 } else { 535 dex_files.push_back(dex_file); 536 } 537 ATRACE_END(); 538 } 539 return failure_count; 540} 541 542// The primary goal of the watchdog is to prevent stuck build servers 543// during development when fatal aborts lead to a cascade of failures 544// that result in a deadlock. 545class WatchDog { 546// WatchDog defines its own CHECK_PTHREAD_CALL to avoid using Log which uses locks 547#undef CHECK_PTHREAD_CALL 548#define CHECK_WATCH_DOG_PTHREAD_CALL(call, args, what) \ 549 do { \ 550 int rc = call args; \ 551 if (rc != 0) { \ 552 errno = rc; \ 553 std::string message(# call); \ 554 message += " failed for "; \ 555 message += reason; \ 556 Fatal(message); \ 557 } \ 558 } while (false) 559 560 public: 561 explicit WatchDog(bool is_watch_dog_enabled) { 562 is_watch_dog_enabled_ = is_watch_dog_enabled; 563 if (!is_watch_dog_enabled_) { 564 return; 565 } 566 shutting_down_ = false; 567 const char* reason = "dex2oat watch dog thread startup"; 568 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_init, (&mutex_, nullptr), reason); 569 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_cond_init, (&cond_, nullptr), reason); 570 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_attr_init, (&attr_), reason); 571 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_create, (&pthread_, &attr_, &CallBack, this), reason); 572 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_attr_destroy, (&attr_), reason); 573 } 574 ~WatchDog() { 575 if (!is_watch_dog_enabled_) { 576 return; 577 } 578 const char* reason = "dex2oat watch dog thread shutdown"; 579 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_lock, (&mutex_), reason); 580 shutting_down_ = true; 581 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_cond_signal, (&cond_), reason); 582 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_unlock, (&mutex_), reason); 583 584 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_join, (pthread_, nullptr), reason); 585 586 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_cond_destroy, (&cond_), reason); 587 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_destroy, (&mutex_), reason); 588 } 589 590 private: 591 static void* CallBack(void* arg) { 592 WatchDog* self = reinterpret_cast<WatchDog*>(arg); 593 ::art::SetThreadName("dex2oat watch dog"); 594 self->Wait(); 595 return nullptr; 596 } 597 598 static void Message(char severity, const std::string& message) { 599 // TODO: Remove when we switch to LOG when we can guarantee it won't prevent shutdown in error 600 // cases. 601 fprintf(stderr, "dex2oat%s %c %d %d %s\n", 602 kIsDebugBuild ? "d" : "", 603 severity, 604 getpid(), 605 GetTid(), 606 message.c_str()); 607 } 608 609 static void Warn(const std::string& message) { 610 Message('W', message); 611 } 612 613 static void Fatal(const std::string& message) { 614 Message('F', message); 615 exit(1); 616 } 617 618 void Wait() { 619 bool warning = true; 620 CHECK_GT(kWatchDogTimeoutSeconds, kWatchDogWarningSeconds); 621 // TODO: tune the multiplier for GC verification, the following is just to make the timeout 622 // large. 623 int64_t multiplier = kVerifyObjectSupport > kVerifyObjectModeFast ? 100 : 1; 624 timespec warning_ts; 625 InitTimeSpec(true, CLOCK_REALTIME, multiplier * kWatchDogWarningSeconds * 1000, 0, &warning_ts); 626 timespec timeout_ts; 627 InitTimeSpec(true, CLOCK_REALTIME, multiplier * kWatchDogTimeoutSeconds * 1000, 0, &timeout_ts); 628 const char* reason = "dex2oat watch dog thread waiting"; 629 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_lock, (&mutex_), reason); 630 while (!shutting_down_) { 631 int rc = TEMP_FAILURE_RETRY(pthread_cond_timedwait(&cond_, &mutex_, 632 warning ? &warning_ts 633 : &timeout_ts)); 634 if (rc == ETIMEDOUT) { 635 std::string message(StringPrintf("dex2oat did not finish after %d seconds", 636 warning ? kWatchDogWarningSeconds 637 : kWatchDogTimeoutSeconds)); 638 if (warning) { 639 Warn(message.c_str()); 640 warning = false; 641 } else { 642 Fatal(message.c_str()); 643 } 644 } else if (rc != 0) { 645 std::string message(StringPrintf("pthread_cond_timedwait failed: %s", 646 strerror(errno))); 647 Fatal(message.c_str()); 648 } 649 } 650 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_unlock, (&mutex_), reason); 651 } 652 653 // When setting timeouts, keep in mind that the build server may not be as fast as your desktop. 654#if ART_USE_PORTABLE_COMPILER 655 static const unsigned int kWatchDogWarningSeconds = 2 * 60; // 2 minutes. 656 static const unsigned int kWatchDogTimeoutSeconds = 30 * 60; // 25 minutes + buffer. 657#else 658 static const unsigned int kWatchDogWarningSeconds = 1 * 60; // 1 minute. 659 static const unsigned int kWatchDogTimeoutSeconds = 6 * 60; // 5 minutes + buffer. 660#endif 661 662 bool is_watch_dog_enabled_; 663 bool shutting_down_; 664 // TODO: Switch to Mutex when we can guarantee it won't prevent shutdown in error cases. 665 pthread_mutex_t mutex_; 666 pthread_cond_t cond_; 667 pthread_attr_t attr_; 668 pthread_t pthread_; 669}; 670const unsigned int WatchDog::kWatchDogWarningSeconds; 671const unsigned int WatchDog::kWatchDogTimeoutSeconds; 672 673// Given a set of instruction features from the build, parse it. The 674// input 'str' is a comma separated list of feature names. Parse it and 675// return the InstructionSetFeatures object. 676static InstructionSetFeatures ParseFeatureList(std::string str) { 677 InstructionSetFeatures result; 678 typedef std::vector<std::string> FeatureList; 679 FeatureList features; 680 Split(str, ',', features); 681 for (FeatureList::iterator i = features.begin(); i != features.end(); i++) { 682 std::string feature = Trim(*i); 683 if (feature == "default") { 684 // Nothing to do. 685 } else if (feature == "div") { 686 // Supports divide instruction. 687 result.SetHasDivideInstruction(true); 688 } else if (feature == "nodiv") { 689 // Turn off support for divide instruction. 690 result.SetHasDivideInstruction(false); 691 } else if (feature == "lpae") { 692 // Supports Large Physical Address Extension. 693 result.SetHasLpae(true); 694 } else if (feature == "nolpae") { 695 // Turn off support for Large Physical Address Extension. 696 result.SetHasLpae(false); 697 } else { 698 Usage("Unknown instruction set feature: '%s'", feature.c_str()); 699 } 700 } 701 // others... 702 return result; 703} 704 705static int dex2oat(int argc, char** argv) { 706 original_argc = argc; 707 original_argv = argv; 708 709 TimingLogger timings("compiler", false, false); 710 CumulativeLogger compiler_phases_timings("compilation times"); 711 712 InitLogging(argv); 713 714 // Skip over argv[0]. 715 argv++; 716 argc--; 717 718 if (argc == 0) { 719 Usage("No arguments specified"); 720 } 721 722 std::vector<const char*> dex_filenames; 723 std::vector<const char*> dex_locations; 724 int zip_fd = -1; 725 std::string zip_location; 726 std::string oat_filename; 727 std::string oat_symbols; 728 std::string oat_location; 729 int oat_fd = -1; 730 std::string bitcode_filename; 731 const char* image_classes_zip_filename = nullptr; 732 const char* image_classes_filename = nullptr; 733 std::string image_filename; 734 std::string boot_image_filename; 735 uintptr_t image_base = 0; 736 std::string android_root; 737 std::vector<const char*> runtime_args; 738 int thread_count = sysconf(_SC_NPROCESSORS_CONF); 739 Compiler::Kind compiler_kind = kUsePortableCompiler 740 ? Compiler::kPortable 741 : Compiler::kQuick; 742 const char* compiler_filter_string = nullptr; 743 int huge_method_threshold = CompilerOptions::kDefaultHugeMethodThreshold; 744 int large_method_threshold = CompilerOptions::kDefaultLargeMethodThreshold; 745 int small_method_threshold = CompilerOptions::kDefaultSmallMethodThreshold; 746 int tiny_method_threshold = CompilerOptions::kDefaultTinyMethodThreshold; 747 int num_dex_methods_threshold = CompilerOptions::kDefaultNumDexMethodsThreshold; 748 749 // Take the default set of instruction features from the build. 750 InstructionSetFeatures instruction_set_features = 751 ParseFeatureList(Runtime::GetDefaultInstructionSetFeatures()); 752 753 InstructionSet instruction_set = kRuntimeISA; 754 755 // Profile file to use 756 std::string profile_file; 757 758 bool is_host = false; 759 bool dump_stats = false; 760 bool dump_timing = false; 761 bool dump_passes = false; 762 bool dump_slow_timing = kIsDebugBuild; 763 bool watch_dog_enabled = !kIsTargetBuild; 764 bool generate_gdb_information = kIsDebugBuild; 765 766 for (int i = 0; i < argc; i++) { 767 const StringPiece option(argv[i]); 768 const bool log_options = false; 769 if (log_options) { 770 LOG(INFO) << "dex2oat: option[" << i << "]=" << argv[i]; 771 } 772 if (option.starts_with("--dex-file=")) { 773 dex_filenames.push_back(option.substr(strlen("--dex-file=")).data()); 774 } else if (option.starts_with("--dex-location=")) { 775 dex_locations.push_back(option.substr(strlen("--dex-location=")).data()); 776 } else if (option.starts_with("--zip-fd=")) { 777 const char* zip_fd_str = option.substr(strlen("--zip-fd=")).data(); 778 if (!ParseInt(zip_fd_str, &zip_fd)) { 779 Usage("Failed to parse --zip-fd argument '%s' as an integer", zip_fd_str); 780 } 781 if (zip_fd < 0) { 782 Usage("--zip-fd passed a negative value %d", zip_fd); 783 } 784 } else if (option.starts_with("--zip-location=")) { 785 zip_location = option.substr(strlen("--zip-location=")).data(); 786 } else if (option.starts_with("--oat-file=")) { 787 oat_filename = option.substr(strlen("--oat-file=")).data(); 788 } else if (option.starts_with("--oat-symbols=")) { 789 oat_symbols = option.substr(strlen("--oat-symbols=")).data(); 790 } else if (option.starts_with("--oat-fd=")) { 791 const char* oat_fd_str = option.substr(strlen("--oat-fd=")).data(); 792 if (!ParseInt(oat_fd_str, &oat_fd)) { 793 Usage("Failed to parse --oat-fd argument '%s' as an integer", oat_fd_str); 794 } 795 if (oat_fd < 0) { 796 Usage("--oat-fd passed a negative value %d", oat_fd); 797 } 798 } else if (option == "--watch-dog") { 799 watch_dog_enabled = true; 800 } else if (option == "--no-watch-dog") { 801 watch_dog_enabled = false; 802 } else if (option == "--gen-gdb-info") { 803 generate_gdb_information = true; 804 } else if (option == "--no-gen-gdb-info") { 805 generate_gdb_information = false; 806 } else if (option.starts_with("-j")) { 807 const char* thread_count_str = option.substr(strlen("-j")).data(); 808 if (!ParseInt(thread_count_str, &thread_count)) { 809 Usage("Failed to parse -j argument '%s' as an integer", thread_count_str); 810 } 811 } else if (option.starts_with("--oat-location=")) { 812 oat_location = option.substr(strlen("--oat-location=")).data(); 813 } else if (option.starts_with("--bitcode=")) { 814 bitcode_filename = option.substr(strlen("--bitcode=")).data(); 815 } else if (option.starts_with("--image=")) { 816 image_filename = option.substr(strlen("--image=")).data(); 817 } else if (option.starts_with("--image-classes=")) { 818 image_classes_filename = option.substr(strlen("--image-classes=")).data(); 819 } else if (option.starts_with("--image-classes-zip=")) { 820 image_classes_zip_filename = option.substr(strlen("--image-classes-zip=")).data(); 821 } else if (option.starts_with("--base=")) { 822 const char* image_base_str = option.substr(strlen("--base=")).data(); 823 char* end; 824 image_base = strtoul(image_base_str, &end, 16); 825 if (end == image_base_str || *end != '\0') { 826 Usage("Failed to parse hexadecimal value for option %s", option.data()); 827 } 828 } else if (option.starts_with("--boot-image=")) { 829 boot_image_filename = option.substr(strlen("--boot-image=")).data(); 830 } else if (option.starts_with("--android-root=")) { 831 android_root = option.substr(strlen("--android-root=")).data(); 832 } else if (option.starts_with("--instruction-set=")) { 833 StringPiece instruction_set_str = option.substr(strlen("--instruction-set=")).data(); 834 if (instruction_set_str == "arm") { 835 instruction_set = kThumb2; 836 } else if (instruction_set_str == "arm64") { 837 instruction_set = kArm64; 838 } else if (instruction_set_str == "mips") { 839 instruction_set = kMips; 840 } else if (instruction_set_str == "x86") { 841 instruction_set = kX86; 842 } else if (instruction_set_str == "x86_64") { 843 instruction_set = kX86_64; 844 } 845 } else if (option.starts_with("--instruction-set-features=")) { 846 StringPiece str = option.substr(strlen("--instruction-set-features=")).data(); 847 instruction_set_features = ParseFeatureList(str.as_string()); 848 } else if (option.starts_with("--compiler-backend=")) { 849 StringPiece backend_str = option.substr(strlen("--compiler-backend=")).data(); 850 if (backend_str == "Quick") { 851 compiler_kind = Compiler::kQuick; 852 } else if (backend_str == "Optimizing") { 853 compiler_kind = Compiler::kOptimizing; 854 } else if (backend_str == "Portable") { 855 compiler_kind = Compiler::kPortable; 856 } 857 } else if (option.starts_with("--compiler-filter=")) { 858 compiler_filter_string = option.substr(strlen("--compiler-filter=")).data(); 859 } else if (option.starts_with("--huge-method-max=")) { 860 const char* threshold = option.substr(strlen("--huge-method-max=")).data(); 861 if (!ParseInt(threshold, &huge_method_threshold)) { 862 Usage("Failed to parse --huge-method-max '%s' as an integer", threshold); 863 } 864 if (huge_method_threshold < 0) { 865 Usage("--huge-method-max passed a negative value %s", huge_method_threshold); 866 } 867 } else if (option.starts_with("--large-method-max=")) { 868 const char* threshold = option.substr(strlen("--large-method-max=")).data(); 869 if (!ParseInt(threshold, &large_method_threshold)) { 870 Usage("Failed to parse --large-method-max '%s' as an integer", threshold); 871 } 872 if (large_method_threshold < 0) { 873 Usage("--large-method-max passed a negative value %s", large_method_threshold); 874 } 875 } else if (option.starts_with("--small-method-max=")) { 876 const char* threshold = option.substr(strlen("--small-method-max=")).data(); 877 if (!ParseInt(threshold, &small_method_threshold)) { 878 Usage("Failed to parse --small-method-max '%s' as an integer", threshold); 879 } 880 if (small_method_threshold < 0) { 881 Usage("--small-method-max passed a negative value %s", small_method_threshold); 882 } 883 } else if (option.starts_with("--tiny-method-max=")) { 884 const char* threshold = option.substr(strlen("--tiny-method-max=")).data(); 885 if (!ParseInt(threshold, &tiny_method_threshold)) { 886 Usage("Failed to parse --tiny-method-max '%s' as an integer", threshold); 887 } 888 if (tiny_method_threshold < 0) { 889 Usage("--tiny-method-max passed a negative value %s", tiny_method_threshold); 890 } 891 } else if (option.starts_with("--num-dex-methods=")) { 892 const char* threshold = option.substr(strlen("--num-dex-methods=")).data(); 893 if (!ParseInt(threshold, &num_dex_methods_threshold)) { 894 Usage("Failed to parse --num-dex-methods '%s' as an integer", threshold); 895 } 896 if (num_dex_methods_threshold < 0) { 897 Usage("--num-dex-methods passed a negative value %s", num_dex_methods_threshold); 898 } 899 } else if (option == "--host") { 900 is_host = true; 901 } else if (option == "--runtime-arg") { 902 if (++i >= argc) { 903 Usage("Missing required argument for --runtime-arg"); 904 } 905 if (log_options) { 906 LOG(INFO) << "dex2oat: option[" << i << "]=" << argv[i]; 907 } 908 runtime_args.push_back(argv[i]); 909 } else if (option == "--dump-timing") { 910 dump_timing = true; 911 } else if (option == "--dump-passes") { 912 dump_passes = true; 913 } else if (option == "--dump-stats") { 914 dump_stats = true; 915 } else if (option.starts_with("--profile-file=")) { 916 profile_file = option.substr(strlen("--profile-file=")).data(); 917 VLOG(compiler) << "dex2oat: profile file is " << profile_file; 918 } else if (option == "--no-profile-file") { 919 // No profile 920 } else if (option == "--print-pass-names") { 921 PassDriverME::PrintPassNames(); 922 } else if (option.starts_with("--disable-passes=")) { 923 std::string disable_passes = option.substr(strlen("--disable-passes=")).data(); 924 PassDriverME::CreateDefaultPassList(disable_passes); 925 } else { 926 Usage("Unknown argument %s", option.data()); 927 } 928 } 929 930 if (oat_filename.empty() && oat_fd == -1) { 931 Usage("Output must be supplied with either --oat-file or --oat-fd"); 932 } 933 934 if (!oat_filename.empty() && oat_fd != -1) { 935 Usage("--oat-file should not be used with --oat-fd"); 936 } 937 938 if (!oat_symbols.empty() && oat_fd != -1) { 939 Usage("--oat-symbols should not be used with --oat-fd"); 940 } 941 942 if (!oat_symbols.empty() && is_host) { 943 Usage("--oat-symbols should not be used with --host"); 944 } 945 946 if (oat_fd != -1 && !image_filename.empty()) { 947 Usage("--oat-fd should not be used with --image"); 948 } 949 950 if (android_root.empty()) { 951 const char* android_root_env_var = getenv("ANDROID_ROOT"); 952 if (android_root_env_var == nullptr) { 953 Usage("--android-root unspecified and ANDROID_ROOT not set"); 954 } 955 android_root += android_root_env_var; 956 } 957 958 bool image = (!image_filename.empty()); 959 if (!image && boot_image_filename.empty()) { 960 boot_image_filename += GetAndroidRoot(); 961 boot_image_filename += "/framework/boot.art"; 962 } 963 std::string boot_image_option; 964 if (!boot_image_filename.empty()) { 965 boot_image_option += "-Ximage:"; 966 boot_image_option += boot_image_filename; 967 } 968 969 if (image_classes_filename != nullptr && !image) { 970 Usage("--image-classes should only be used with --image"); 971 } 972 973 if (image_classes_filename != nullptr && !boot_image_option.empty()) { 974 Usage("--image-classes should not be used with --boot-image"); 975 } 976 977 if (image_classes_zip_filename != nullptr && image_classes_filename == nullptr) { 978 Usage("--image-classes-zip should be used with --image-classes"); 979 } 980 981 if (dex_filenames.empty() && zip_fd == -1) { 982 Usage("Input must be supplied with either --dex-file or --zip-fd"); 983 } 984 985 if (!dex_filenames.empty() && zip_fd != -1) { 986 Usage("--dex-file should not be used with --zip-fd"); 987 } 988 989 if (!dex_filenames.empty() && !zip_location.empty()) { 990 Usage("--dex-file should not be used with --zip-location"); 991 } 992 993 if (dex_locations.empty()) { 994 for (size_t i = 0; i < dex_filenames.size(); i++) { 995 dex_locations.push_back(dex_filenames[i]); 996 } 997 } else if (dex_locations.size() != dex_filenames.size()) { 998 Usage("--dex-location arguments do not match --dex-file arguments"); 999 } 1000 1001 if (zip_fd != -1 && zip_location.empty()) { 1002 Usage("--zip-location should be supplied with --zip-fd"); 1003 } 1004 1005 if (boot_image_option.empty()) { 1006 if (image_base == 0) { 1007 Usage("Non-zero --base not specified"); 1008 } 1009 } 1010 1011 std::string oat_stripped(oat_filename); 1012 std::string oat_unstripped; 1013 if (!oat_symbols.empty()) { 1014 oat_unstripped += oat_symbols; 1015 } else { 1016 oat_unstripped += oat_filename; 1017 } 1018 1019 if (compiler_filter_string == nullptr) { 1020 if (instruction_set == kX86_64 || instruction_set == kArm64 || instruction_set == kMips) { 1021 // TODO: implement/fix compilers for these architectures. 1022 compiler_filter_string = "interpret-only"; 1023 } else if (image) { 1024 compiler_filter_string = "speed"; 1025 } else { 1026#if ART_SMALL_MODE 1027 compiler_filter_string = "interpret-only"; 1028#else 1029 compiler_filter_string = "speed"; 1030#endif 1031 } 1032 } 1033 CHECK(compiler_filter_string != nullptr); 1034 CompilerOptions::CompilerFilter compiler_filter = CompilerOptions::kDefaultCompilerFilter; 1035 if (strcmp(compiler_filter_string, "verify-none") == 0) { 1036 compiler_filter = CompilerOptions::kVerifyNone; 1037 } else if (strcmp(compiler_filter_string, "interpret-only") == 0) { 1038 compiler_filter = CompilerOptions::kInterpretOnly; 1039 } else if (strcmp(compiler_filter_string, "space") == 0) { 1040 compiler_filter = CompilerOptions::kSpace; 1041 } else if (strcmp(compiler_filter_string, "balanced") == 0) { 1042 compiler_filter = CompilerOptions::kBalanced; 1043 } else if (strcmp(compiler_filter_string, "speed") == 0) { 1044 compiler_filter = CompilerOptions::kSpeed; 1045 } else if (strcmp(compiler_filter_string, "everything") == 0) { 1046 compiler_filter = CompilerOptions::kEverything; 1047 } else { 1048 Usage("Unknown --compiler-filter value %s", compiler_filter_string); 1049 } 1050 1051 CompilerOptions compiler_options(compiler_filter, 1052 huge_method_threshold, 1053 large_method_threshold, 1054 small_method_threshold, 1055 tiny_method_threshold, 1056 num_dex_methods_threshold, 1057 generate_gdb_information 1058#ifdef ART_SEA_IR_MODE 1059 , compiler_options.sea_ir_ = true; 1060#endif 1061 ); // NOLINT(whitespace/parens) 1062 1063 // Done with usage checks, enable watchdog if requested 1064 WatchDog watch_dog(watch_dog_enabled); 1065 1066 // Check early that the result of compilation can be written 1067 std::unique_ptr<File> oat_file; 1068 bool create_file = !oat_unstripped.empty(); // as opposed to using open file descriptor 1069 if (create_file) { 1070 oat_file.reset(OS::CreateEmptyFile(oat_unstripped.c_str())); 1071 if (oat_location.empty()) { 1072 oat_location = oat_filename; 1073 } 1074 } else { 1075 oat_file.reset(new File(oat_fd, oat_location)); 1076 oat_file->DisableAutoClose(); 1077 } 1078 if (oat_file.get() == nullptr) { 1079 PLOG(ERROR) << "Failed to create oat file: " << oat_location; 1080 return EXIT_FAILURE; 1081 } 1082 if (create_file && fchmod(oat_file->Fd(), 0644) != 0) { 1083 PLOG(ERROR) << "Failed to make oat file world readable: " << oat_location; 1084 return EXIT_FAILURE; 1085 } 1086 1087 timings.StartSplit("dex2oat Setup"); 1088 LOG(INFO) << CommandLine(); 1089 1090 Runtime::Options runtime_options; 1091 std::vector<const DexFile*> boot_class_path; 1092 if (boot_image_option.empty()) { 1093 size_t failure_count = OpenDexFiles(dex_filenames, dex_locations, boot_class_path); 1094 if (failure_count > 0) { 1095 LOG(ERROR) << "Failed to open some dex files: " << failure_count; 1096 return EXIT_FAILURE; 1097 } 1098 runtime_options.push_back(std::make_pair("bootclasspath", &boot_class_path)); 1099 } else { 1100 runtime_options.push_back(std::make_pair(boot_image_option.c_str(), nullptr)); 1101 } 1102 for (size_t i = 0; i < runtime_args.size(); i++) { 1103 runtime_options.push_back(std::make_pair(runtime_args[i], nullptr)); 1104 } 1105 1106 VerificationResults verification_results(&compiler_options); 1107 DexFileToMethodInlinerMap method_inliner_map; 1108 CompilerCallbacksImpl callbacks(&verification_results, &method_inliner_map); 1109 runtime_options.push_back(std::make_pair("compilercallbacks", &callbacks)); 1110 runtime_options.push_back( 1111 std::make_pair("imageinstructionset", 1112 reinterpret_cast<const void*>(GetInstructionSetString(instruction_set)))); 1113 1114 Dex2Oat* p_dex2oat; 1115 if (!Dex2Oat::Create(&p_dex2oat, 1116 runtime_options, 1117 compiler_options, 1118 compiler_kind, 1119 instruction_set, 1120 instruction_set_features, 1121 &verification_results, 1122 &method_inliner_map, 1123 thread_count)) { 1124 LOG(ERROR) << "Failed to create dex2oat"; 1125 return EXIT_FAILURE; 1126 } 1127 std::unique_ptr<Dex2Oat> dex2oat(p_dex2oat); 1128 // Runtime::Create acquired the mutator_lock_ that is normally given away when we Runtime::Start, 1129 // give it away now so that we don't starve GC. 1130 Thread* self = Thread::Current(); 1131 self->TransitionFromRunnableToSuspended(kNative); 1132 // If we're doing the image, override the compiler filter to force full compilation. Must be 1133 // done ahead of WellKnownClasses::Init that causes verification. Note: doesn't force 1134 // compilation of class initializers. 1135 // Whilst we're in native take the opportunity to initialize well known classes. 1136 WellKnownClasses::Init(self->GetJniEnv()); 1137 1138 // If --image-classes was specified, calculate the full list of classes to include in the image 1139 std::unique_ptr<CompilerDriver::DescriptorSet> image_classes(nullptr); 1140 if (image_classes_filename != nullptr) { 1141 std::string error_msg; 1142 if (image_classes_zip_filename != nullptr) { 1143 image_classes.reset(dex2oat->ReadImageClassesFromZip(image_classes_zip_filename, 1144 image_classes_filename, 1145 &error_msg)); 1146 } else { 1147 image_classes.reset(dex2oat->ReadImageClassesFromFile(image_classes_filename)); 1148 } 1149 if (image_classes.get() == nullptr) { 1150 LOG(ERROR) << "Failed to create list of image classes from '" << image_classes_filename << 1151 "': " << error_msg; 1152 return EXIT_FAILURE; 1153 } 1154 } else if (image) { 1155 image_classes.reset(new CompilerDriver::DescriptorSet); 1156 } 1157 1158 std::vector<const DexFile*> dex_files; 1159 if (boot_image_option.empty()) { 1160 dex_files = Runtime::Current()->GetClassLinker()->GetBootClassPath(); 1161 } else { 1162 if (dex_filenames.empty()) { 1163 ATRACE_BEGIN("Opening zip archive from file descriptor"); 1164 std::string error_msg; 1165 std::unique_ptr<ZipArchive> zip_archive(ZipArchive::OpenFromFd(zip_fd, zip_location.c_str(), 1166 &error_msg)); 1167 if (zip_archive.get() == nullptr) { 1168 LOG(ERROR) << "Failed to open zip from file descriptor for '" << zip_location << "': " 1169 << error_msg; 1170 return EXIT_FAILURE; 1171 } 1172 const DexFile* dex_file = DexFile::Open(*zip_archive.get(), zip_location, &error_msg); 1173 if (dex_file == nullptr) { 1174 LOG(ERROR) << "Failed to open dex from file descriptor for zip file '" << zip_location 1175 << "': " << error_msg; 1176 return EXIT_FAILURE; 1177 } 1178 dex_files.push_back(dex_file); 1179 ATRACE_END(); 1180 } else { 1181 size_t failure_count = OpenDexFiles(dex_filenames, dex_locations, dex_files); 1182 if (failure_count > 0) { 1183 LOG(ERROR) << "Failed to open some dex files: " << failure_count; 1184 return EXIT_FAILURE; 1185 } 1186 } 1187 1188 const bool kSaveDexInput = false; 1189 if (kSaveDexInput) { 1190 for (size_t i = 0; i < dex_files.size(); ++i) { 1191 const DexFile* dex_file = dex_files[i]; 1192 std::string tmp_file_name(StringPrintf("/data/local/tmp/dex2oat.%d.%zd.dex", getpid(), i)); 1193 std::unique_ptr<File> tmp_file(OS::CreateEmptyFile(tmp_file_name.c_str())); 1194 if (tmp_file.get() == nullptr) { 1195 PLOG(ERROR) << "Failed to open file " << tmp_file_name 1196 << ". Try: adb shell chmod 777 /data/local/tmp"; 1197 continue; 1198 } 1199 tmp_file->WriteFully(dex_file->Begin(), dex_file->Size()); 1200 LOG(INFO) << "Wrote input to " << tmp_file_name; 1201 } 1202 } 1203 } 1204 // Ensure opened dex files are writable for dex-to-dex transformations. 1205 for (const auto& dex_file : dex_files) { 1206 if (!dex_file->EnableWrite()) { 1207 PLOG(ERROR) << "Failed to make .dex file writeable '" << dex_file->GetLocation() << "'\n"; 1208 } 1209 } 1210 1211 /* 1212 * If we're not in interpret-only or verify-none mode, go ahead and compile small applications. 1213 * Don't bother to check if we're doing the image. 1214 */ 1215 if (!image && compiler_options.IsCompilationEnabled()) { 1216 size_t num_methods = 0; 1217 for (size_t i = 0; i != dex_files.size(); ++i) { 1218 const DexFile* dex_file = dex_files[i]; 1219 CHECK(dex_file != nullptr); 1220 num_methods += dex_file->NumMethodIds(); 1221 } 1222 if (num_methods <= compiler_options.GetNumDexMethodsThreshold()) { 1223 compiler_options.SetCompilerFilter(CompilerOptions::kSpeed); 1224 VLOG(compiler) << "Below method threshold, compiling anyways"; 1225 } 1226 } 1227 1228 std::unique_ptr<const CompilerDriver> compiler(dex2oat->CreateOatFile(boot_image_option, 1229 android_root, 1230 is_host, 1231 dex_files, 1232 oat_file.get(), 1233 bitcode_filename, 1234 image, 1235 image_classes, 1236 dump_stats, 1237 dump_passes, 1238 timings, 1239 compiler_phases_timings, 1240 profile_file)); 1241 1242 if (compiler.get() == nullptr) { 1243 LOG(ERROR) << "Failed to create oat file: " << oat_location; 1244 return EXIT_FAILURE; 1245 } 1246 1247 VLOG(compiler) << "Oat file written successfully (unstripped): " << oat_location; 1248 1249 // Notes on the interleaving of creating the image and oat file to 1250 // ensure the references between the two are correct. 1251 // 1252 // Currently we have a memory layout that looks something like this: 1253 // 1254 // +--------------+ 1255 // | image | 1256 // +--------------+ 1257 // | boot oat | 1258 // +--------------+ 1259 // | alloc spaces | 1260 // +--------------+ 1261 // 1262 // There are several constraints on the loading of the image and boot.oat. 1263 // 1264 // 1. The image is expected to be loaded at an absolute address and 1265 // contains Objects with absolute pointers within the image. 1266 // 1267 // 2. There are absolute pointers from Methods in the image to their 1268 // code in the oat. 1269 // 1270 // 3. There are absolute pointers from the code in the oat to Methods 1271 // in the image. 1272 // 1273 // 4. There are absolute pointers from code in the oat to other code 1274 // in the oat. 1275 // 1276 // To get this all correct, we go through several steps. 1277 // 1278 // 1. We have already created that oat file above with 1279 // CreateOatFile. Originally this was just our own proprietary file 1280 // but now it is contained within an ELF dynamic object (aka an .so 1281 // file). The Compiler returned by CreateOatFile provides 1282 // PatchInformation for references to oat code and Methods that need 1283 // to be update once we know where the oat file will be located 1284 // after the image. 1285 // 1286 // 2. We create the image file. It needs to know where the oat file 1287 // will be loaded after itself. Originally when oat file was simply 1288 // memory mapped so we could predict where its contents were based 1289 // on the file size. Now that it is an ELF file, we need to inspect 1290 // the ELF file to understand the in memory segment layout including 1291 // where the oat header is located within. ImageWriter's 1292 // PatchOatCodeAndMethods uses the PatchInformation from the 1293 // Compiler to touch up absolute references in the oat file. 1294 // 1295 // 3. We fixup the ELF program headers so that dlopen will try to 1296 // load the .so at the desired location at runtime by offsetting the 1297 // Elf32_Phdr.p_vaddr values by the desired base address. 1298 // 1299 if (image) { 1300 timings.NewSplit("dex2oat ImageWriter"); 1301 bool image_creation_success = dex2oat->CreateImageFile(image_filename, 1302 image_base, 1303 oat_unstripped, 1304 oat_location, 1305 *compiler.get()); 1306 if (!image_creation_success) { 1307 return EXIT_FAILURE; 1308 } 1309 VLOG(compiler) << "Image written successfully: " << image_filename; 1310 } 1311 1312 if (is_host) { 1313 if (dump_timing || (dump_slow_timing && timings.GetTotalNs() > MsToNs(1000))) { 1314 LOG(INFO) << Dumpable<TimingLogger>(timings); 1315 } 1316 if (dump_passes) { 1317 LOG(INFO) << Dumpable<CumulativeLogger>(*compiler.get()->GetTimingsLogger()); 1318 } 1319 return EXIT_SUCCESS; 1320 } 1321 1322 // If we don't want to strip in place, copy from unstripped location to stripped location. 1323 // We need to strip after image creation because FixupElf needs to use .strtab. 1324 if (oat_unstripped != oat_stripped) { 1325 timings.NewSplit("dex2oat OatFile copy"); 1326 oat_file.reset(); 1327 std::unique_ptr<File> in(OS::OpenFileForReading(oat_unstripped.c_str())); 1328 std::unique_ptr<File> out(OS::CreateEmptyFile(oat_stripped.c_str())); 1329 size_t buffer_size = 8192; 1330 std::unique_ptr<uint8_t> buffer(new uint8_t[buffer_size]); 1331 while (true) { 1332 int bytes_read = TEMP_FAILURE_RETRY(read(in->Fd(), buffer.get(), buffer_size)); 1333 if (bytes_read <= 0) { 1334 break; 1335 } 1336 bool write_ok = out->WriteFully(buffer.get(), bytes_read); 1337 CHECK(write_ok); 1338 } 1339 oat_file.reset(out.release()); 1340 VLOG(compiler) << "Oat file copied successfully (stripped): " << oat_stripped; 1341 } 1342 1343#if ART_USE_PORTABLE_COMPILER // We currently only generate symbols on Portable 1344 timings.NewSplit("dex2oat ElfStripper"); 1345 // Strip unneeded sections for target 1346 off_t seek_actual = lseek(oat_file->Fd(), 0, SEEK_SET); 1347 CHECK_EQ(0, seek_actual); 1348 std::string error_msg; 1349 CHECK(ElfStripper::Strip(oat_file.get(), &error_msg)) << error_msg; 1350 1351 1352 // We wrote the oat file successfully, and want to keep it. 1353 VLOG(compiler) << "Oat file written successfully (stripped): " << oat_location; 1354#endif // ART_USE_PORTABLE_COMPILER 1355 1356 timings.EndSplit(); 1357 1358 if (dump_timing || (dump_slow_timing && timings.GetTotalNs() > MsToNs(1000))) { 1359 LOG(INFO) << Dumpable<TimingLogger>(timings); 1360 } 1361 if (dump_passes) { 1362 LOG(INFO) << Dumpable<CumulativeLogger>(compiler_phases_timings); 1363 } 1364 1365 // Everything was successfully written, do an explicit exit here to avoid running Runtime 1366 // destructors that take time (bug 10645725) unless we're a debug build or running on valgrind. 1367 if (!kIsDebugBuild && (RUNNING_ON_VALGRIND == 0)) { 1368 dex2oat->LogCompletionTime(); 1369 exit(EXIT_SUCCESS); 1370 } 1371 1372 return EXIT_SUCCESS; 1373} // NOLINT(readability/fn_size) 1374} // namespace art 1375 1376int main(int argc, char** argv) { 1377 return art::dex2oat(argc, argv); 1378} 1379