dex2oat.cc revision f79fccbf8b5e59a0f48bec754cb7a53877b3c90f
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_backend.h" 34#include "compiler_callbacks.h" 35#include "dex_file-inl.h" 36#include "dex/verification_results.h" 37#include "driver/compiler_driver.h" 38#include "elf_fixup.h" 39#include "elf_stripper.h" 40#include "gc/space/image_space.h" 41#include "gc/space/space-inl.h" 42#include "image_writer.h" 43#include "leb128.h" 44#include "mirror/art_method-inl.h" 45#include "mirror/class-inl.h" 46#include "mirror/class_loader.h" 47#include "mirror/object-inl.h" 48#include "mirror/object_array-inl.h" 49#include "oat_writer.h" 50#include "object_utils.h" 51#include "os.h" 52#include "runtime.h" 53#include "ScopedLocalRef.h" 54#include "scoped_thread_state_change.h" 55#include "sirt_ref.h" 56#include "vector_output_stream.h" 57#include "verifier/method_verifier.h" 58#include "verifier/method_verifier-inl.h" 59#include "well_known_classes.h" 60#include "zip_archive.h" 61 62#include "dex/quick/dex_file_to_method_inliner_map.h" 63 64namespace art { 65 66static void UsageErrorV(const char* fmt, va_list ap) { 67 std::string error; 68 StringAppendV(&error, fmt, ap); 69 LOG(ERROR) << error; 70} 71 72static void UsageError(const char* fmt, ...) { 73 va_list ap; 74 va_start(ap, fmt); 75 UsageErrorV(fmt, ap); 76 va_end(ap); 77} 78 79static void Usage(const char* fmt, ...) { 80 va_list ap; 81 va_start(ap, fmt); 82 UsageErrorV(fmt, ap); 83 va_end(ap); 84 85 UsageError("Usage: dex2oat [options]..."); 86 UsageError(""); 87 UsageError(" --dex-file=<dex-file>: specifies a .dex file to compile."); 88 UsageError(" Example: --dex-file=/system/framework/core.jar"); 89 UsageError(""); 90 UsageError(" --zip-fd=<file-descriptor>: specifies a file descriptor of a zip file"); 91 UsageError(" containing a classes.dex file to compile."); 92 UsageError(" Example: --zip-fd=5"); 93 UsageError(""); 94 UsageError(" --zip-location=<zip-location>: specifies a symbolic name for the file"); 95 UsageError(" corresponding to the file descriptor specified by --zip-fd."); 96 UsageError(" Example: --zip-location=/system/app/Calculator.apk"); 97 UsageError(""); 98 UsageError(" --oat-file=<file.oat>: specifies the oat output destination via a filename."); 99 UsageError(" Example: --oat-file=/system/framework/boot.oat"); 100 UsageError(""); 101 UsageError(" --oat-fd=<number>: specifies the oat output destination via a file descriptor."); 102 UsageError(" Example: --oat-file=/system/framework/boot.oat"); 103 UsageError(""); 104 UsageError(" --oat-location=<oat-name>: specifies a symbolic name for the file corresponding"); 105 UsageError(" to the file descriptor specified by --oat-fd."); 106 UsageError(" Example: --oat-location=/data/dalvik-cache/system@app@Calculator.apk.oat"); 107 UsageError(""); 108 UsageError(" --oat-symbols=<file.oat>: specifies the oat output destination with full symbols."); 109 UsageError(" Example: --oat-symbols=/symbols/system/framework/boot.oat"); 110 UsageError(""); 111 UsageError(" --bitcode=<file.bc>: specifies the optional bitcode filename."); 112 UsageError(" Example: --bitcode=/system/framework/boot.bc"); 113 UsageError(""); 114 UsageError(" --image=<file.art>: specifies the output image filename."); 115 UsageError(" Example: --image=/system/framework/boot.art"); 116 UsageError(""); 117 UsageError(" --image-classes=<classname-file>: specifies classes to include in an image."); 118 UsageError(" Example: --image=frameworks/base/preloaded-classes"); 119 UsageError(""); 120 UsageError(" --base=<hex-address>: specifies the base address when creating a boot image."); 121 UsageError(" Example: --base=0x50000000"); 122 UsageError(""); 123 UsageError(" --boot-image=<file.art>: provide the image file for the boot class path."); 124 UsageError(" Example: --boot-image=/system/framework/boot.art"); 125 UsageError(" Default: <host-prefix>/system/framework/boot.art"); 126 UsageError(""); 127 UsageError(" --host-prefix=<path>: used to translate host paths to target paths during"); 128 UsageError(" cross compilation."); 129 UsageError(" Example: --host-prefix=out/target/product/crespo"); 130 UsageError(" Default: $ANDROID_PRODUCT_OUT"); 131 UsageError(""); 132 UsageError(" --android-root=<path>: used to locate libraries for portable linking."); 133 UsageError(" Example: --android-root=out/host/linux-x86"); 134 UsageError(" Default: $ANDROID_ROOT"); 135 UsageError(""); 136 UsageError(" --instruction-set=(arm|mips|x86): compile for a particular instruction"); 137 UsageError(" set."); 138 UsageError(" Example: --instruction-set=x86"); 139 UsageError(" Default: arm"); 140 UsageError(""); 141 UsageError(" --instruction-set-features=...,: Specify instruction set features"); 142 UsageError(" Example: --instruction-set-features=div"); 143 UsageError(" Default: default"); 144 UsageError(""); 145 UsageError(" --compiler-backend=(Quick|QuickGBC|Portable): select compiler backend"); 146 UsageError(" set."); 147 UsageError(" Example: --compiler-backend=Portable"); 148 UsageError(" Default: Quick"); 149 UsageError(""); 150 UsageError(" --host: used with Portable backend to link against host runtime libraries"); 151 UsageError(""); 152 UsageError(" --dump-timing: display a breakdown of where time was spent"); 153 UsageError(""); 154 UsageError(" --runtime-arg <argument>: used to specify various arguments for the runtime,"); 155 UsageError(" such as initial heap size, maximum heap size, and verbose output."); 156 UsageError(" Use a separate --runtime-arg switch for each argument."); 157 UsageError(" Example: --runtime-arg -Xms256m"); 158 UsageError(""); 159 std::cerr << "See log for usage error information\n"; 160 exit(EXIT_FAILURE); 161} 162 163class Dex2Oat { 164 public: 165 static bool Create(Dex2Oat** p_dex2oat, 166 Runtime::Options& options, 167 CompilerBackend::Kind compiler_backend, 168 InstructionSet instruction_set, 169 InstructionSetFeatures instruction_set_features, 170 size_t thread_count) 171 SHARED_TRYLOCK_FUNCTION(true, Locks::mutator_lock_) { 172 UniquePtr<Dex2Oat> dex2oat(new Dex2Oat(compiler_backend, instruction_set, 173 instruction_set_features, thread_count)); 174 if (!dex2oat->CreateRuntime(options, instruction_set)) { 175 *p_dex2oat = NULL; 176 return false; 177 } 178 *p_dex2oat = dex2oat.release(); 179 return true; 180 } 181 182 ~Dex2Oat() { 183 delete runtime_; 184 LogCompletionTime(); 185 } 186 187 void LogCompletionTime() { 188 LOG(INFO) << "dex2oat took " << PrettyDuration(NanoTime() - start_ns_) 189 << " (threads: " << thread_count_ << ")"; 190 } 191 192 193 // Reads the class names (java.lang.Object) and returns a set of descriptors (Ljava/lang/Object;) 194 CompilerDriver::DescriptorSet* ReadImageClassesFromFile(const char* image_classes_filename) { 195 UniquePtr<std::ifstream> image_classes_file(new std::ifstream(image_classes_filename, 196 std::ifstream::in)); 197 if (image_classes_file.get() == NULL) { 198 LOG(ERROR) << "Failed to open image classes file " << image_classes_filename; 199 return NULL; 200 } 201 UniquePtr<CompilerDriver::DescriptorSet> result(ReadImageClasses(*image_classes_file.get())); 202 image_classes_file->close(); 203 return result.release(); 204 } 205 206 CompilerDriver::DescriptorSet* ReadImageClasses(std::istream& image_classes_stream) { 207 UniquePtr<CompilerDriver::DescriptorSet> image_classes(new CompilerDriver::DescriptorSet); 208 while (image_classes_stream.good()) { 209 std::string dot; 210 std::getline(image_classes_stream, dot); 211 if (StartsWith(dot, "#") || dot.empty()) { 212 continue; 213 } 214 std::string descriptor(DotToDescriptor(dot.c_str())); 215 image_classes->insert(descriptor); 216 } 217 return image_classes.release(); 218 } 219 220 // Reads the class names (java.lang.Object) and returns a set of descriptors (Ljava/lang/Object;) 221 CompilerDriver::DescriptorSet* ReadImageClassesFromZip(const char* zip_filename, 222 const char* image_classes_filename, 223 std::string* error_msg) { 224 UniquePtr<ZipArchive> zip_archive(ZipArchive::Open(zip_filename, error_msg)); 225 if (zip_archive.get() == NULL) { 226 return NULL; 227 } 228 UniquePtr<ZipEntry> zip_entry(zip_archive->Find(image_classes_filename, error_msg)); 229 if (zip_entry.get() == NULL) { 230 *error_msg = StringPrintf("Failed to find '%s' within '%s': %s", image_classes_filename, 231 zip_filename, error_msg->c_str()); 232 return NULL; 233 } 234 UniquePtr<MemMap> image_classes_file(zip_entry->ExtractToMemMap(image_classes_filename, 235 error_msg)); 236 if (image_classes_file.get() == NULL) { 237 *error_msg = StringPrintf("Failed to extract '%s' from '%s': %s", image_classes_filename, 238 zip_filename, error_msg->c_str()); 239 return NULL; 240 } 241 const std::string image_classes_string(reinterpret_cast<char*>(image_classes_file->Begin()), 242 image_classes_file->Size()); 243 std::istringstream image_classes_stream(image_classes_string); 244 return ReadImageClasses(image_classes_stream); 245 } 246 247 const CompilerDriver* CreateOatFile(const std::string& boot_image_option, 248 const std::string* host_prefix, 249 const std::string& android_root, 250 bool is_host, 251 const std::vector<const DexFile*>& dex_files, 252 File* oat_file, 253 const std::string& bitcode_filename, 254 bool image, 255 UniquePtr<CompilerDriver::DescriptorSet>& image_classes, 256 bool dump_stats, 257 bool dump_passes, 258 TimingLogger& timings, 259 CumulativeLogger& compiler_phases_timings) { 260 // SirtRef and ClassLoader creation needs to come after Runtime::Create 261 jobject class_loader = NULL; 262 Thread* self = Thread::Current(); 263 if (!boot_image_option.empty()) { 264 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 265 std::vector<const DexFile*> class_path_files(dex_files); 266 OpenClassPathFiles(runtime_->GetClassPathString(), class_path_files); 267 ScopedObjectAccess soa(self); 268 for (size_t i = 0; i < class_path_files.size(); i++) { 269 class_linker->RegisterDexFile(*class_path_files[i]); 270 } 271 soa.Env()->AllocObject(WellKnownClasses::dalvik_system_PathClassLoader); 272 ScopedLocalRef<jobject> class_loader_local(soa.Env(), 273 soa.Env()->AllocObject(WellKnownClasses::dalvik_system_PathClassLoader)); 274 class_loader = soa.Env()->NewGlobalRef(class_loader_local.get()); 275 Runtime::Current()->SetCompileTimeClassPath(class_loader, class_path_files); 276 } 277 278 UniquePtr<CompilerDriver> driver(new CompilerDriver(verification_results_.get(), 279 method_inliner_map_.get(), 280 compiler_backend_, 281 instruction_set_, 282 instruction_set_features_, 283 image, 284 image_classes.release(), 285 thread_count_, 286 dump_stats, 287 dump_passes, 288 &compiler_phases_timings)); 289 290 driver->GetCompilerBackend()->SetBitcodeFileName(bitcode_filename); 291 292 driver->CompileAll(class_loader, dex_files, timings); 293 294 timings.NewSplit("dex2oat OatWriter"); 295 std::string image_file_location; 296 uint32_t image_file_location_oat_checksum = 0; 297 uintptr_t image_file_location_oat_data_begin = 0; 298 if (!driver->IsImage()) { 299 TimingLogger::ScopedSplit split("Loading image checksum", &timings); 300 gc::space::ImageSpace* image_space = Runtime::Current()->GetHeap()->GetImageSpace(); 301 image_file_location_oat_checksum = image_space->GetImageHeader().GetOatChecksum(); 302 image_file_location_oat_data_begin = 303 reinterpret_cast<uintptr_t>(image_space->GetImageHeader().GetOatDataBegin()); 304 image_file_location = image_space->GetImageFilename(); 305 if (host_prefix != NULL && StartsWith(image_file_location, host_prefix->c_str())) { 306 image_file_location = image_file_location.substr(host_prefix->size()); 307 } 308 } 309 310 OatWriter oat_writer(dex_files, 311 image_file_location_oat_checksum, 312 image_file_location_oat_data_begin, 313 image_file_location, 314 driver.get(), 315 &timings); 316 317 TimingLogger::ScopedSplit split("Writing ELF", &timings); 318 if (!driver->WriteElf(android_root, is_host, dex_files, oat_writer, oat_file)) { 319 LOG(ERROR) << "Failed to write ELF file " << oat_file->GetPath(); 320 return NULL; 321 } 322 323 return driver.release(); 324 } 325 326 bool CreateImageFile(const std::string& image_filename, 327 uintptr_t image_base, 328 const std::string& oat_filename, 329 const std::string& oat_location, 330 const CompilerDriver& compiler) 331 LOCKS_EXCLUDED(Locks::mutator_lock_) { 332 uintptr_t oat_data_begin; 333 { 334 // ImageWriter is scoped so it can free memory before doing FixupElf 335 ImageWriter image_writer(compiler); 336 if (!image_writer.Write(image_filename, image_base, oat_filename, oat_location)) { 337 LOG(ERROR) << "Failed to create image file " << image_filename; 338 return false; 339 } 340 oat_data_begin = image_writer.GetOatDataBegin(); 341 } 342 343 UniquePtr<File> oat_file(OS::OpenFileReadWrite(oat_filename.c_str())); 344 if (oat_file.get() == NULL) { 345 PLOG(ERROR) << "Failed to open ELF file: " << oat_filename; 346 return false; 347 } 348 if (!ElfFixup::Fixup(oat_file.get(), oat_data_begin)) { 349 LOG(ERROR) << "Failed to fixup ELF file " << oat_file->GetPath(); 350 return false; 351 } 352 return true; 353 } 354 355 private: 356 class Dex2OatCompilerCallbacks : public CompilerCallbacks { 357 public: 358 Dex2OatCompilerCallbacks(VerificationResults* verification_results, 359 DexFileToMethodInlinerMap* method_inliner_map) 360 : verification_results_(verification_results), 361 method_inliner_map_(method_inliner_map) { } 362 virtual ~Dex2OatCompilerCallbacks() { } 363 364 virtual bool MethodVerified(verifier::MethodVerifier* verifier) 365 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 366 bool result = verification_results_->ProcessVerifiedMethod(verifier); 367 if (result) { 368 MethodReference ref = verifier->GetMethodReference(); 369 method_inliner_map_->GetMethodInliner(ref.dex_file) 370 ->AnalyseMethodCode(verifier); 371 } 372 return result; 373 } 374 virtual void ClassRejected(ClassReference ref) { 375 verification_results_->AddRejectedClass(ref); 376 } 377 378 private: 379 VerificationResults* verification_results_; 380 DexFileToMethodInlinerMap* method_inliner_map_; 381 }; 382 383 explicit Dex2Oat(CompilerBackend::Kind compiler_backend, 384 InstructionSet instruction_set, 385 InstructionSetFeatures instruction_set_features, 386 size_t thread_count) 387 : compiler_backend_(compiler_backend), 388 instruction_set_(instruction_set), 389 instruction_set_features_(instruction_set_features), 390 verification_results_(new VerificationResults), 391 method_inliner_map_(new DexFileToMethodInlinerMap), 392 callbacks_(verification_results_.get(), method_inliner_map_.get()), 393 runtime_(nullptr), 394 thread_count_(thread_count), 395 start_ns_(NanoTime()) { 396 } 397 398 bool CreateRuntime(Runtime::Options& options, InstructionSet instruction_set) 399 SHARED_TRYLOCK_FUNCTION(true, Locks::mutator_lock_) { 400 options.push_back( 401 std::make_pair("compilercallbacks", static_cast<CompilerCallbacks*>(&callbacks_))); 402 if (!Runtime::Create(options, false)) { 403 LOG(ERROR) << "Failed to create runtime"; 404 return false; 405 } 406 Runtime* runtime = Runtime::Current(); 407 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) { 408 Runtime::CalleeSaveType type = Runtime::CalleeSaveType(i); 409 if (!runtime->HasCalleeSaveMethod(type)) { 410 runtime->SetCalleeSaveMethod(runtime->CreateCalleeSaveMethod(instruction_set, type), type); 411 } 412 } 413 runtime->GetClassLinker()->FixupDexCaches(runtime->GetResolutionMethod()); 414 runtime_ = runtime; 415 return true; 416 } 417 418 // Appends to dex_files any elements of class_path that it doesn't already 419 // contain. This will open those dex files as necessary. 420 static void OpenClassPathFiles(const std::string& class_path, 421 std::vector<const DexFile*>& dex_files) { 422 std::vector<std::string> parsed; 423 Split(class_path, ':', parsed); 424 // Take Locks::mutator_lock_ so that lock ordering on the ClassLinker::dex_lock_ is maintained. 425 ScopedObjectAccess soa(Thread::Current()); 426 for (size_t i = 0; i < parsed.size(); ++i) { 427 if (DexFilesContains(dex_files, parsed[i])) { 428 continue; 429 } 430 std::string error_msg; 431 const DexFile* dex_file = DexFile::Open(parsed[i].c_str(), parsed[i].c_str(), &error_msg); 432 if (dex_file == NULL) { 433 LOG(WARNING) << "Failed to open dex file '" << parsed[i] << "': " << error_msg; 434 } else { 435 dex_files.push_back(dex_file); 436 } 437 } 438 } 439 440 // Returns true if dex_files has a dex with the named location. 441 static bool DexFilesContains(const std::vector<const DexFile*>& dex_files, 442 const std::string& location) { 443 for (size_t i = 0; i < dex_files.size(); ++i) { 444 if (dex_files[i]->GetLocation() == location) { 445 return true; 446 } 447 } 448 return false; 449 } 450 451 const CompilerBackend::Kind compiler_backend_; 452 453 const InstructionSet instruction_set_; 454 const InstructionSetFeatures instruction_set_features_; 455 456 UniquePtr<VerificationResults> verification_results_; 457 UniquePtr<DexFileToMethodInlinerMap> method_inliner_map_; 458 Dex2OatCompilerCallbacks callbacks_; 459 Runtime* runtime_; 460 size_t thread_count_; 461 uint64_t start_ns_; 462 463 DISALLOW_IMPLICIT_CONSTRUCTORS(Dex2Oat); 464}; 465 466static bool ParseInt(const char* in, int* out) { 467 char* end; 468 int result = strtol(in, &end, 10); 469 if (in == end || *end != '\0') { 470 return false; 471 } 472 *out = result; 473 return true; 474} 475 476static size_t OpenDexFiles(const std::vector<const char*>& dex_filenames, 477 const std::vector<const char*>& dex_locations, 478 std::vector<const DexFile*>& dex_files) { 479 size_t failure_count = 0; 480 for (size_t i = 0; i < dex_filenames.size(); i++) { 481 const char* dex_filename = dex_filenames[i]; 482 const char* dex_location = dex_locations[i]; 483 ATRACE_BEGIN(StringPrintf("Opening dex file '%s'", dex_filenames[i]).c_str()); 484 std::string error_msg; 485 if (!OS::FileExists(dex_filename)) { 486 LOG(WARNING) << "Skipping non-existent dex file '" << dex_filename << "'"; 487 continue; 488 } 489 const DexFile* dex_file = DexFile::Open(dex_filename, dex_location, &error_msg); 490 if (dex_file == NULL) { 491 LOG(WARNING) << "Failed to open .dex from file '" << dex_filename << "': " << error_msg; 492 ++failure_count; 493 } else { 494 dex_files.push_back(dex_file); 495 } 496 ATRACE_END(); 497 } 498 return failure_count; 499} 500 501// The primary goal of the watchdog is to prevent stuck build servers 502// during development when fatal aborts lead to a cascade of failures 503// that result in a deadlock. 504class WatchDog { 505// WatchDog defines its own CHECK_PTHREAD_CALL to avoid using Log which uses locks 506#undef CHECK_PTHREAD_CALL 507#define CHECK_WATCH_DOG_PTHREAD_CALL(call, args, what) \ 508 do { \ 509 int rc = call args; \ 510 if (rc != 0) { \ 511 errno = rc; \ 512 std::string message(# call); \ 513 message += " failed for "; \ 514 message += reason; \ 515 Fatal(message); \ 516 } \ 517 } while (false) 518 519 public: 520 explicit WatchDog(bool is_watch_dog_enabled) { 521 is_watch_dog_enabled_ = is_watch_dog_enabled; 522 if (!is_watch_dog_enabled_) { 523 return; 524 } 525 shutting_down_ = false; 526 const char* reason = "dex2oat watch dog thread startup"; 527 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_init, (&mutex_, NULL), reason); 528 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_cond_init, (&cond_, NULL), reason); 529 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_attr_init, (&attr_), reason); 530 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_create, (&pthread_, &attr_, &CallBack, this), reason); 531 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_attr_destroy, (&attr_), reason); 532 } 533 ~WatchDog() { 534 if (!is_watch_dog_enabled_) { 535 return; 536 } 537 const char* reason = "dex2oat watch dog thread shutdown"; 538 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_lock, (&mutex_), reason); 539 shutting_down_ = true; 540 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_cond_signal, (&cond_), reason); 541 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_unlock, (&mutex_), reason); 542 543 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_join, (pthread_, NULL), reason); 544 545 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_cond_destroy, (&cond_), reason); 546 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_destroy, (&mutex_), reason); 547 } 548 549 private: 550 static void* CallBack(void* arg) { 551 WatchDog* self = reinterpret_cast<WatchDog*>(arg); 552 ::art::SetThreadName("dex2oat watch dog"); 553 self->Wait(); 554 return NULL; 555 } 556 557 static void Message(char severity, const std::string& message) { 558 // TODO: Remove when we switch to LOG when we can guarantee it won't prevent shutdown in error 559 // cases. 560 fprintf(stderr, "dex2oat%s %c %d %d %s\n", 561 kIsDebugBuild ? "d" : "", 562 severity, 563 getpid(), 564 GetTid(), 565 message.c_str()); 566 } 567 568 static void Warn(const std::string& message) { 569 Message('W', message); 570 } 571 572 static void Fatal(const std::string& message) { 573 Message('F', message); 574 exit(1); 575 } 576 577 void Wait() { 578 bool warning = true; 579 CHECK_GT(kWatchDogTimeoutSeconds, kWatchDogWarningSeconds); 580 // TODO: tune the multiplier for GC verification, the following is just to make the timeout 581 // large. 582 int64_t multiplier = gc::kDesiredHeapVerification > gc::kVerifyAllFast ? 100 : 1; 583 timespec warning_ts; 584 InitTimeSpec(true, CLOCK_REALTIME, multiplier * kWatchDogWarningSeconds * 1000, 0, &warning_ts); 585 timespec timeout_ts; 586 InitTimeSpec(true, CLOCK_REALTIME, multiplier * kWatchDogTimeoutSeconds * 1000, 0, &timeout_ts); 587 const char* reason = "dex2oat watch dog thread waiting"; 588 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_lock, (&mutex_), reason); 589 while (!shutting_down_) { 590 int rc = TEMP_FAILURE_RETRY(pthread_cond_timedwait(&cond_, &mutex_, 591 warning ? &warning_ts 592 : &timeout_ts)); 593 if (rc == ETIMEDOUT) { 594 std::string message(StringPrintf("dex2oat did not finish after %d seconds", 595 warning ? kWatchDogWarningSeconds 596 : kWatchDogTimeoutSeconds)); 597 if (warning) { 598 Warn(message.c_str()); 599 warning = false; 600 } else { 601 Fatal(message.c_str()); 602 } 603 } else if (rc != 0) { 604 std::string message(StringPrintf("pthread_cond_timedwait failed: %s", 605 strerror(errno))); 606 Fatal(message.c_str()); 607 } 608 } 609 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_unlock, (&mutex_), reason); 610 } 611 612 // When setting timeouts, keep in mind that the build server may not be as fast as your desktop. 613#if ART_USE_PORTABLE_COMPILER 614 static const unsigned int kWatchDogWarningSeconds = 2 * 60; // 2 minutes. 615 static const unsigned int kWatchDogTimeoutSeconds = 30 * 60; // 25 minutes + buffer. 616#else 617 static const unsigned int kWatchDogWarningSeconds = 1 * 60; // 1 minute. 618 static const unsigned int kWatchDogTimeoutSeconds = 6 * 60; // 5 minutes + buffer. 619#endif 620 621 bool is_watch_dog_enabled_; 622 bool shutting_down_; 623 // TODO: Switch to Mutex when we can guarantee it won't prevent shutdown in error cases. 624 pthread_mutex_t mutex_; 625 pthread_cond_t cond_; 626 pthread_attr_t attr_; 627 pthread_t pthread_; 628}; 629const unsigned int WatchDog::kWatchDogWarningSeconds; 630const unsigned int WatchDog::kWatchDogTimeoutSeconds; 631 632// Given a set of instruction features from the build, parse it. The 633// input 'str' is a comma separated list of feature names. Parse it and 634// return the InstructionSetFeatures object. 635static InstructionSetFeatures ParseFeatureList(std::string str) { 636 InstructionSetFeatures result; 637 typedef std::vector<std::string> FeatureList; 638 FeatureList features; 639 Split(str, ',', features); 640 for (FeatureList::iterator i = features.begin(); i != features.end(); i++) { 641 std::string feature = Trim(*i); 642 if (feature == "default") { 643 // Nothing to do. 644 } else if (feature == "div") { 645 // Supports divide instruction. 646 result.SetHasDivideInstruction(true); 647 } else if (feature == "nodiv") { 648 // Turn off support for divide instruction. 649 result.SetHasDivideInstruction(false); 650 } else { 651 Usage("Unknown instruction set feature: '%s'", feature.c_str()); 652 } 653 } 654 // others... 655 return result; 656} 657 658static int dex2oat(int argc, char** argv) { 659 TimingLogger timings("compiler", false, false); 660 CumulativeLogger compiler_phases_timings("compilation times"); 661 662 InitLogging(argv); 663 664 // Skip over argv[0]. 665 argv++; 666 argc--; 667 668 if (argc == 0) { 669 Usage("No arguments specified"); 670 } 671 672 std::vector<const char*> dex_filenames; 673 std::vector<const char*> dex_locations; 674 int zip_fd = -1; 675 std::string zip_location; 676 std::string oat_filename; 677 std::string oat_symbols; 678 std::string oat_location; 679 int oat_fd = -1; 680 std::string bitcode_filename; 681 const char* image_classes_zip_filename = NULL; 682 const char* image_classes_filename = NULL; 683 std::string image_filename; 684 std::string boot_image_filename; 685 uintptr_t image_base = 0; 686 UniquePtr<std::string> host_prefix; 687 std::string android_root; 688 std::vector<const char*> runtime_args; 689 int thread_count = sysconf(_SC_NPROCESSORS_CONF); 690 CompilerBackend::Kind compiler_backend = kUsePortableCompiler 691 ? CompilerBackend::kPortable 692 : CompilerBackend::kQuick; 693 694 // Take the default set of instruction features from the build. 695 InstructionSetFeatures instruction_set_features = 696 ParseFeatureList(STRINGIFY(ART_DEFAULT_INSTRUCTION_SET_FEATURES)); 697 698#if defined(__arm__) 699 InstructionSet instruction_set = kThumb2; 700#elif defined(__i386__) 701 InstructionSet instruction_set = kX86; 702#elif defined(__mips__) 703 InstructionSet instruction_set = kMips; 704#else 705 InstructionSet instruction_set = kNone; 706#endif 707 708 709 bool is_host = false; 710 bool dump_stats = false; 711 bool dump_timing = false; 712 bool dump_passes = false; 713 bool dump_slow_timing = kIsDebugBuild; 714 bool watch_dog_enabled = !kIsTargetBuild; 715 716 717 for (int i = 0; i < argc; i++) { 718 const StringPiece option(argv[i]); 719 bool log_options = false; 720 if (log_options) { 721 LOG(INFO) << "dex2oat: option[" << i << "]=" << argv[i]; 722 } 723 if (option.starts_with("--dex-file=")) { 724 dex_filenames.push_back(option.substr(strlen("--dex-file=")).data()); 725 } else if (option.starts_with("--dex-location=")) { 726 dex_locations.push_back(option.substr(strlen("--dex-location=")).data()); 727 } else if (option.starts_with("--zip-fd=")) { 728 const char* zip_fd_str = option.substr(strlen("--zip-fd=")).data(); 729 if (!ParseInt(zip_fd_str, &zip_fd)) { 730 Usage("Failed to parse --zip-fd argument '%s' as an integer", zip_fd_str); 731 } 732 } else if (option.starts_with("--zip-location=")) { 733 zip_location = option.substr(strlen("--zip-location=")).data(); 734 } else if (option.starts_with("--oat-file=")) { 735 oat_filename = option.substr(strlen("--oat-file=")).data(); 736 } else if (option.starts_with("--oat-symbols=")) { 737 oat_symbols = option.substr(strlen("--oat-symbols=")).data(); 738 } else if (option.starts_with("--oat-fd=")) { 739 const char* oat_fd_str = option.substr(strlen("--oat-fd=")).data(); 740 if (!ParseInt(oat_fd_str, &oat_fd)) { 741 Usage("Failed to parse --oat-fd argument '%s' as an integer", oat_fd_str); 742 } 743 } else if (option == "--watch-dog") { 744 watch_dog_enabled = true; 745 } else if (option == "--no-watch-dog") { 746 watch_dog_enabled = false; 747 } else if (option.starts_with("-j")) { 748 const char* thread_count_str = option.substr(strlen("-j")).data(); 749 if (!ParseInt(thread_count_str, &thread_count)) { 750 Usage("Failed to parse -j argument '%s' as an integer", thread_count_str); 751 } 752 } else if (option.starts_with("--oat-location=")) { 753 oat_location = option.substr(strlen("--oat-location=")).data(); 754 } else if (option.starts_with("--bitcode=")) { 755 bitcode_filename = option.substr(strlen("--bitcode=")).data(); 756 } else if (option.starts_with("--image=")) { 757 image_filename = option.substr(strlen("--image=")).data(); 758 } else if (option.starts_with("--image-classes=")) { 759 image_classes_filename = option.substr(strlen("--image-classes=")).data(); 760 } else if (option.starts_with("--image-classes-zip=")) { 761 image_classes_zip_filename = option.substr(strlen("--image-classes-zip=")).data(); 762 } else if (option.starts_with("--base=")) { 763 const char* image_base_str = option.substr(strlen("--base=")).data(); 764 char* end; 765 image_base = strtoul(image_base_str, &end, 16); 766 if (end == image_base_str || *end != '\0') { 767 Usage("Failed to parse hexadecimal value for option %s", option.data()); 768 } 769 } else if (option.starts_with("--boot-image=")) { 770 boot_image_filename = option.substr(strlen("--boot-image=")).data(); 771 } else if (option.starts_with("--host-prefix=")) { 772 host_prefix.reset(new std::string(option.substr(strlen("--host-prefix=")).data())); 773 } else if (option.starts_with("--android-root=")) { 774 android_root = option.substr(strlen("--android-root=")).data(); 775 } else if (option.starts_with("--instruction-set=")) { 776 StringPiece instruction_set_str = option.substr(strlen("--instruction-set=")).data(); 777 if (instruction_set_str == "arm") { 778 instruction_set = kThumb2; 779 } else if (instruction_set_str == "mips") { 780 instruction_set = kMips; 781 } else if (instruction_set_str == "x86") { 782 instruction_set = kX86; 783 } else if (instruction_set_str == "x86_64") { 784 instruction_set = kX86_64; 785 } 786 } else if (option.starts_with("--instruction-set-features=")) { 787 StringPiece str = option.substr(strlen("--instruction-set-features=")).data(); 788 instruction_set_features = ParseFeatureList(str.as_string()); 789 } else if (option.starts_with("--compiler-backend=")) { 790 StringPiece backend_str = option.substr(strlen("--compiler-backend=")).data(); 791 if (backend_str == "Quick") { 792 compiler_backend = CompilerBackend::kQuick; 793 } else if (backend_str == "Portable") { 794 compiler_backend = CompilerBackend::kPortable; 795 } 796 } else if (option == "--host") { 797 is_host = true; 798 } else if (option == "--runtime-arg") { 799 if (++i >= argc) { 800 Usage("Missing required argument for --runtime-arg"); 801 } 802 if (log_options) { 803 LOG(INFO) << "dex2oat: option[" << i << "]=" << argv[i]; 804 } 805 runtime_args.push_back(argv[i]); 806 } else if (option == "--dump-timing") { 807 dump_timing = true; 808 } else if (option == "--dump-passes") { 809 dump_passes = true; 810 } else if (option == "--dump-stats") { 811 dump_stats = true; 812 } else { 813 Usage("Unknown argument %s", option.data()); 814 } 815 } 816 817 if (oat_filename.empty() && oat_fd == -1) { 818 Usage("Output must be supplied with either --oat-file or --oat-fd"); 819 } 820 821 if (!oat_filename.empty() && oat_fd != -1) { 822 Usage("--oat-file should not be used with --oat-fd"); 823 } 824 825 if (!oat_symbols.empty() && oat_fd != -1) { 826 Usage("--oat-symbols should not be used with --oat-fd"); 827 } 828 829 if (!oat_symbols.empty() && is_host) { 830 Usage("--oat-symbols should not be used with --host"); 831 } 832 833 if (oat_fd != -1 && !image_filename.empty()) { 834 Usage("--oat-fd should not be used with --image"); 835 } 836 837 if (host_prefix.get() == NULL) { 838 const char* android_product_out = getenv("ANDROID_PRODUCT_OUT"); 839 if (android_product_out != NULL) { 840 host_prefix.reset(new std::string(android_product_out)); 841 } 842 } 843 844 if (android_root.empty()) { 845 const char* android_root_env_var = getenv("ANDROID_ROOT"); 846 if (android_root_env_var == NULL) { 847 Usage("--android-root unspecified and ANDROID_ROOT not set"); 848 } 849 android_root += android_root_env_var; 850 } 851 852 bool image = (!image_filename.empty()); 853 if (!image && boot_image_filename.empty()) { 854 if (host_prefix.get() == NULL) { 855 boot_image_filename += GetAndroidRoot(); 856 } else { 857 boot_image_filename += *host_prefix.get(); 858 boot_image_filename += "/system"; 859 } 860 boot_image_filename += "/framework/boot.art"; 861 } 862 std::string boot_image_option; 863 if (!boot_image_filename.empty()) { 864 boot_image_option += "-Ximage:"; 865 boot_image_option += boot_image_filename; 866 } 867 868 if (image_classes_filename != NULL && !image) { 869 Usage("--image-classes should only be used with --image"); 870 } 871 872 if (image_classes_filename != NULL && !boot_image_option.empty()) { 873 Usage("--image-classes should not be used with --boot-image"); 874 } 875 876 if (image_classes_zip_filename != NULL && image_classes_filename == NULL) { 877 Usage("--image-classes-zip should be used with --image-classes"); 878 } 879 880 if (dex_filenames.empty() && zip_fd == -1) { 881 Usage("Input must be supplied with either --dex-file or --zip-fd"); 882 } 883 884 if (!dex_filenames.empty() && zip_fd != -1) { 885 Usage("--dex-file should not be used with --zip-fd"); 886 } 887 888 if (!dex_filenames.empty() && !zip_location.empty()) { 889 Usage("--dex-file should not be used with --zip-location"); 890 } 891 892 if (dex_locations.empty()) { 893 for (size_t i = 0; i < dex_filenames.size(); i++) { 894 dex_locations.push_back(dex_filenames[i]); 895 } 896 } else if (dex_locations.size() != dex_filenames.size()) { 897 Usage("--dex-location arguments do not match --dex-file arguments"); 898 } 899 900 if (zip_fd != -1 && zip_location.empty()) { 901 Usage("--zip-location should be supplied with --zip-fd"); 902 } 903 904 if (boot_image_option.empty()) { 905 if (image_base == 0) { 906 Usage("Non-zero --base not specified"); 907 } 908 } 909 910 std::string oat_stripped(oat_filename); 911 std::string oat_unstripped; 912 if (!oat_symbols.empty()) { 913 oat_unstripped += oat_symbols; 914 } else { 915 oat_unstripped += oat_filename; 916 } 917 918 // Done with usage checks, enable watchdog if requested 919 WatchDog watch_dog(watch_dog_enabled); 920 921 // Check early that the result of compilation can be written 922 UniquePtr<File> oat_file; 923 bool create_file = !oat_unstripped.empty(); // as opposed to using open file descriptor 924 if (create_file) { 925 oat_file.reset(OS::CreateEmptyFile(oat_unstripped.c_str())); 926 if (oat_location.empty()) { 927 oat_location = oat_filename; 928 } 929 } else { 930 oat_file.reset(new File(oat_fd, oat_location)); 931 oat_file->DisableAutoClose(); 932 } 933 if (oat_file.get() == NULL) { 934 PLOG(ERROR) << "Failed to create oat file: " << oat_location; 935 return EXIT_FAILURE; 936 } 937 if (create_file && fchmod(oat_file->Fd(), 0644) != 0) { 938 PLOG(ERROR) << "Failed to make oat file world readable: " << oat_location; 939 return EXIT_FAILURE; 940 } 941 942 timings.StartSplit("dex2oat Setup"); 943 LOG(INFO) << "dex2oat: " << oat_location; 944 945 if (image) { 946 bool has_compiler_filter = false; 947 for (const char* r : runtime_args) { 948 if (strncmp(r, "-compiler-filter:", 17) == 0) { 949 has_compiler_filter = true; 950 break; 951 } 952 } 953 if (!has_compiler_filter) { 954 runtime_args.push_back("-compiler-filter:everything"); 955 } 956 } 957 958 Runtime::Options options; 959 std::vector<const DexFile*> boot_class_path; 960 if (boot_image_option.empty()) { 961 size_t failure_count = OpenDexFiles(dex_filenames, dex_locations, boot_class_path); 962 if (failure_count > 0) { 963 LOG(ERROR) << "Failed to open some dex files: " << failure_count; 964 return EXIT_FAILURE; 965 } 966 options.push_back(std::make_pair("bootclasspath", &boot_class_path)); 967 } else { 968 options.push_back(std::make_pair(boot_image_option.c_str(), reinterpret_cast<void*>(NULL))); 969 } 970 if (host_prefix.get() != NULL) { 971 options.push_back(std::make_pair("host-prefix", host_prefix->c_str())); 972 } 973 for (size_t i = 0; i < runtime_args.size(); i++) { 974 options.push_back(std::make_pair(runtime_args[i], reinterpret_cast<void*>(NULL))); 975 } 976 977#ifdef ART_SEA_IR_MODE 978 options.push_back(std::make_pair("-sea_ir", reinterpret_cast<void*>(NULL))); 979#endif 980 981 Dex2Oat* p_dex2oat; 982 if (!Dex2Oat::Create(&p_dex2oat, options, compiler_backend, instruction_set, 983 instruction_set_features, thread_count)) { 984 LOG(ERROR) << "Failed to create dex2oat"; 985 return EXIT_FAILURE; 986 } 987 UniquePtr<Dex2Oat> dex2oat(p_dex2oat); 988 // Runtime::Create acquired the mutator_lock_ that is normally given away when we Runtime::Start, 989 // give it away now so that we don't starve GC. 990 Thread* self = Thread::Current(); 991 self->TransitionFromRunnableToSuspended(kNative); 992 // If we're doing the image, override the compiler filter to force full compilation. Must be 993 // done ahead of WellKnownClasses::Init that causes verification. Note: doesn't force 994 // compilation of class initializers. 995 // Whilst we're in native take the opportunity to initialize well known classes. 996 WellKnownClasses::Init(self->GetJniEnv()); 997 998 // If --image-classes was specified, calculate the full list of classes to include in the image 999 UniquePtr<CompilerDriver::DescriptorSet> image_classes(NULL); 1000 if (image_classes_filename != NULL) { 1001 std::string error_msg; 1002 if (image_classes_zip_filename != NULL) { 1003 image_classes.reset(dex2oat->ReadImageClassesFromZip(image_classes_zip_filename, 1004 image_classes_filename, 1005 &error_msg)); 1006 } else { 1007 image_classes.reset(dex2oat->ReadImageClassesFromFile(image_classes_filename)); 1008 } 1009 if (image_classes.get() == NULL) { 1010 LOG(ERROR) << "Failed to create list of image classes from '" << image_classes_filename << 1011 "': " << error_msg; 1012 return EXIT_FAILURE; 1013 } 1014 } 1015 1016 std::vector<const DexFile*> dex_files; 1017 if (boot_image_option.empty()) { 1018 dex_files = Runtime::Current()->GetClassLinker()->GetBootClassPath(); 1019 } else { 1020 if (dex_filenames.empty()) { 1021 ATRACE_BEGIN("Opening zip archive from file descriptor"); 1022 std::string error_msg; 1023 UniquePtr<ZipArchive> zip_archive(ZipArchive::OpenFromFd(zip_fd, zip_location.c_str(), 1024 &error_msg)); 1025 if (zip_archive.get() == NULL) { 1026 LOG(ERROR) << "Failed to open zip from file descriptor for '" << zip_location << "': " 1027 << error_msg; 1028 return EXIT_FAILURE; 1029 } 1030 const DexFile* dex_file = DexFile::Open(*zip_archive.get(), zip_location, &error_msg); 1031 if (dex_file == NULL) { 1032 LOG(ERROR) << "Failed to open dex from file descriptor for zip file '" << zip_location 1033 << "': " << error_msg; 1034 return EXIT_FAILURE; 1035 } 1036 dex_files.push_back(dex_file); 1037 ATRACE_END(); 1038 } else { 1039 size_t failure_count = OpenDexFiles(dex_filenames, dex_locations, dex_files); 1040 if (failure_count > 0) { 1041 LOG(ERROR) << "Failed to open some dex files: " << failure_count; 1042 return EXIT_FAILURE; 1043 } 1044 } 1045 1046 const bool kSaveDexInput = false; 1047 if (kSaveDexInput) { 1048 for (size_t i = 0; i < dex_files.size(); ++i) { 1049 const DexFile* dex_file = dex_files[i]; 1050 std::string tmp_file_name(StringPrintf("/data/local/tmp/dex2oat.%d.%d.dex", getpid(), i)); 1051 UniquePtr<File> tmp_file(OS::CreateEmptyFile(tmp_file_name.c_str())); 1052 if (tmp_file.get() == nullptr) { 1053 PLOG(ERROR) << "Failed to open file " << tmp_file_name << ". Try: adb shell chmod 777 /data/local/tmp"; 1054 continue; 1055 } 1056 tmp_file->WriteFully(dex_file->Begin(), dex_file->Size()); 1057 LOG(INFO) << "Wrote input to " << tmp_file_name; 1058 } 1059 } 1060 1061 // Ensure opened dex files are writable for dex-to-dex transformations. 1062 for (const auto& dex_file : dex_files) { 1063 if (!dex_file->EnableWrite()) { 1064 PLOG(ERROR) << "Failed to make .dex file writeable '" << dex_file->GetLocation() << "'\n"; 1065 } 1066 } 1067 } 1068 1069 /* 1070 * If we're not in interpret-only mode, go ahead and compile small applications. Don't 1071 * bother to check if we're doing the image. 1072 */ 1073 if (!image && (Runtime::Current()->GetCompilerFilter() != Runtime::kInterpretOnly)) { 1074 size_t num_methods = 0; 1075 for (size_t i = 0; i != dex_files.size(); ++i) { 1076 const DexFile* dex_file = dex_files[i]; 1077 CHECK(dex_file != NULL); 1078 num_methods += dex_file->NumMethodIds(); 1079 } 1080 if (num_methods <= Runtime::Current()->GetNumDexMethodsThreshold()) { 1081 Runtime::Current()->SetCompilerFilter(Runtime::kSpeed); 1082 VLOG(compiler) << "Below method threshold, compiling anyways"; 1083 } 1084 } 1085 1086 UniquePtr<const CompilerDriver> compiler(dex2oat->CreateOatFile(boot_image_option, 1087 host_prefix.get(), 1088 android_root, 1089 is_host, 1090 dex_files, 1091 oat_file.get(), 1092 bitcode_filename, 1093 image, 1094 image_classes, 1095 dump_stats, 1096 dump_passes, 1097 timings, 1098 compiler_phases_timings)); 1099 1100 if (compiler.get() == NULL) { 1101 LOG(ERROR) << "Failed to create oat file: " << oat_location; 1102 return EXIT_FAILURE; 1103 } 1104 1105 VLOG(compiler) << "Oat file written successfully (unstripped): " << oat_location; 1106 1107 // Notes on the interleaving of creating the image and oat file to 1108 // ensure the references between the two are correct. 1109 // 1110 // Currently we have a memory layout that looks something like this: 1111 // 1112 // +--------------+ 1113 // | image | 1114 // +--------------+ 1115 // | boot oat | 1116 // +--------------+ 1117 // | alloc spaces | 1118 // +--------------+ 1119 // 1120 // There are several constraints on the loading of the image and boot.oat. 1121 // 1122 // 1. The image is expected to be loaded at an absolute address and 1123 // contains Objects with absolute pointers within the image. 1124 // 1125 // 2. There are absolute pointers from Methods in the image to their 1126 // code in the oat. 1127 // 1128 // 3. There are absolute pointers from the code in the oat to Methods 1129 // in the image. 1130 // 1131 // 4. There are absolute pointers from code in the oat to other code 1132 // in the oat. 1133 // 1134 // To get this all correct, we go through several steps. 1135 // 1136 // 1. We have already created that oat file above with 1137 // CreateOatFile. Originally this was just our own proprietary file 1138 // but now it is contained within an ELF dynamic object (aka an .so 1139 // file). The Compiler returned by CreateOatFile provides 1140 // PatchInformation for references to oat code and Methods that need 1141 // to be update once we know where the oat file will be located 1142 // after the image. 1143 // 1144 // 2. We create the image file. It needs to know where the oat file 1145 // will be loaded after itself. Originally when oat file was simply 1146 // memory mapped so we could predict where its contents were based 1147 // on the file size. Now that it is an ELF file, we need to inspect 1148 // the ELF file to understand the in memory segment layout including 1149 // where the oat header is located within. ImageWriter's 1150 // PatchOatCodeAndMethods uses the PatchInformation from the 1151 // Compiler to touch up absolute references in the oat file. 1152 // 1153 // 3. We fixup the ELF program headers so that dlopen will try to 1154 // load the .so at the desired location at runtime by offsetting the 1155 // Elf32_Phdr.p_vaddr values by the desired base address. 1156 // 1157 if (image) { 1158 timings.NewSplit("dex2oat ImageWriter"); 1159 bool image_creation_success = dex2oat->CreateImageFile(image_filename, 1160 image_base, 1161 oat_unstripped, 1162 oat_location, 1163 *compiler.get()); 1164 if (!image_creation_success) { 1165 return EXIT_FAILURE; 1166 } 1167 VLOG(compiler) << "Image written successfully: " << image_filename; 1168 } 1169 1170 if (is_host) { 1171 if (dump_timing || (dump_slow_timing && timings.GetTotalNs() > MsToNs(1000))) { 1172 LOG(INFO) << Dumpable<TimingLogger>(timings); 1173 } 1174 if (dump_passes) { 1175 LOG(INFO) << Dumpable<CumulativeLogger>(compiler.get()->GetTimingsLogger()); 1176 } 1177 return EXIT_SUCCESS; 1178 } 1179 1180 // If we don't want to strip in place, copy from unstripped location to stripped location. 1181 // We need to strip after image creation because FixupElf needs to use .strtab. 1182 if (oat_unstripped != oat_stripped) { 1183 timings.NewSplit("dex2oat OatFile copy"); 1184 oat_file.reset(); 1185 UniquePtr<File> in(OS::OpenFileForReading(oat_unstripped.c_str())); 1186 UniquePtr<File> out(OS::CreateEmptyFile(oat_stripped.c_str())); 1187 size_t buffer_size = 8192; 1188 UniquePtr<uint8_t> buffer(new uint8_t[buffer_size]); 1189 while (true) { 1190 int bytes_read = TEMP_FAILURE_RETRY(read(in->Fd(), buffer.get(), buffer_size)); 1191 if (bytes_read <= 0) { 1192 break; 1193 } 1194 bool write_ok = out->WriteFully(buffer.get(), bytes_read); 1195 CHECK(write_ok); 1196 } 1197 oat_file.reset(out.release()); 1198 VLOG(compiler) << "Oat file copied successfully (stripped): " << oat_stripped; 1199 } 1200 1201#if ART_USE_PORTABLE_COMPILER // We currently only generate symbols on Portable 1202 timings.NewSplit("dex2oat ElfStripper"); 1203 // Strip unneeded sections for target 1204 off_t seek_actual = lseek(oat_file->Fd(), 0, SEEK_SET); 1205 CHECK_EQ(0, seek_actual); 1206 std::string error_msg; 1207 CHECK(ElfStripper::Strip(oat_file.get(), &error_msg)) << error_msg; 1208 1209 1210 // We wrote the oat file successfully, and want to keep it. 1211 VLOG(compiler) << "Oat file written successfully (stripped): " << oat_location; 1212#endif // ART_USE_PORTABLE_COMPILER 1213 1214 timings.EndSplit(); 1215 1216 if (dump_timing || (dump_slow_timing && timings.GetTotalNs() > MsToNs(1000))) { 1217 LOG(INFO) << Dumpable<TimingLogger>(timings); 1218 } 1219 if (dump_passes) { 1220 LOG(INFO) << Dumpable<CumulativeLogger>(compiler_phases_timings); 1221 } 1222 1223 // Everything was successfully written, do an explicit exit here to avoid running Runtime 1224 // destructors that take time (bug 10645725) unless we're a debug build or running on valgrind. 1225 if (!kIsDebugBuild || (RUNNING_ON_VALGRIND == 0)) { 1226 dex2oat->LogCompletionTime(); 1227 exit(EXIT_SUCCESS); 1228 } 1229 1230 return EXIT_SUCCESS; 1231} 1232} // namespace art 1233 1234int main(int argc, char** argv) { 1235 return art::dex2oat(argc, argv); 1236} 1237