dex2oat.cc revision 1fca8e91f32dc8b13d3129b7ef4a0194839736e6
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(zip_filename, 299 image_classes_filename, 300 error_msg)); 301 if (image_classes_file.get() == nullptr) { 302 *error_msg = StringPrintf("Failed to extract '%s' from '%s': %s", image_classes_filename, 303 zip_filename, error_msg->c_str()); 304 return nullptr; 305 } 306 const std::string image_classes_string(reinterpret_cast<char*>(image_classes_file->Begin()), 307 image_classes_file->Size()); 308 std::istringstream image_classes_stream(image_classes_string); 309 return ReadImageClasses(image_classes_stream); 310 } 311 312 const CompilerDriver* CreateOatFile(const std::string& boot_image_option, 313 const std::string& android_root, 314 bool is_host, 315 const std::vector<const DexFile*>& dex_files, 316 File* oat_file, 317 const std::string& bitcode_filename, 318 bool image, 319 std::unique_ptr<CompilerDriver::DescriptorSet>& image_classes, 320 bool dump_stats, 321 bool dump_passes, 322 TimingLogger& timings, 323 CumulativeLogger& compiler_phases_timings, 324 std::string profile_file) { 325 // Handle and ClassLoader creation needs to come after Runtime::Create 326 jobject class_loader = nullptr; 327 Thread* self = Thread::Current(); 328 if (!boot_image_option.empty()) { 329 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 330 std::vector<const DexFile*> class_path_files(dex_files); 331 OpenClassPathFiles(runtime_->GetClassPathString(), class_path_files); 332 ScopedObjectAccess soa(self); 333 for (size_t i = 0; i < class_path_files.size(); i++) { 334 class_linker->RegisterDexFile(*class_path_files[i]); 335 } 336 soa.Env()->AllocObject(WellKnownClasses::dalvik_system_PathClassLoader); 337 ScopedLocalRef<jobject> class_loader_local(soa.Env(), 338 soa.Env()->AllocObject(WellKnownClasses::dalvik_system_PathClassLoader)); 339 class_loader = soa.Env()->NewGlobalRef(class_loader_local.get()); 340 Runtime::Current()->SetCompileTimeClassPath(class_loader, class_path_files); 341 } 342 343 std::unique_ptr<CompilerDriver> driver(new CompilerDriver(compiler_options_, 344 verification_results_, 345 method_inliner_map_, 346 compiler_kind_, 347 instruction_set_, 348 instruction_set_features_, 349 image, 350 image_classes.release(), 351 thread_count_, 352 dump_stats, 353 dump_passes, 354 &compiler_phases_timings, 355 profile_file)); 356 357 driver->GetCompiler()->SetBitcodeFileName(*driver.get(), bitcode_filename); 358 359 driver->CompileAll(class_loader, dex_files, &timings); 360 361 timings.NewSplit("dex2oat OatWriter"); 362 std::string image_file_location; 363 uint32_t image_file_location_oat_checksum = 0; 364 uintptr_t image_file_location_oat_data_begin = 0; 365 if (!driver->IsImage()) { 366 TimingLogger::ScopedSplit split("Loading image checksum", &timings); 367 gc::space::ImageSpace* image_space = Runtime::Current()->GetHeap()->GetImageSpace(); 368 image_file_location_oat_checksum = image_space->GetImageHeader().GetOatChecksum(); 369 image_file_location_oat_data_begin = 370 reinterpret_cast<uintptr_t>(image_space->GetImageHeader().GetOatDataBegin()); 371 image_file_location = image_space->GetImageFilename(); 372 } 373 374 OatWriter oat_writer(dex_files, 375 image_file_location_oat_checksum, 376 image_file_location_oat_data_begin, 377 image_file_location, 378 driver.get(), 379 &timings); 380 381 TimingLogger::ScopedSplit split("Writing ELF", &timings); 382 if (!driver->WriteElf(android_root, is_host, dex_files, &oat_writer, oat_file)) { 383 LOG(ERROR) << "Failed to write ELF file " << oat_file->GetPath(); 384 return nullptr; 385 } 386 387 return driver.release(); 388 } 389 390 bool CreateImageFile(const std::string& image_filename, 391 uintptr_t image_base, 392 const std::string& oat_filename, 393 const std::string& oat_location, 394 const CompilerDriver& compiler) 395 LOCKS_EXCLUDED(Locks::mutator_lock_) { 396 uintptr_t oat_data_begin; 397 { 398 // ImageWriter is scoped so it can free memory before doing FixupElf 399 ImageWriter image_writer(compiler); 400 if (!image_writer.Write(image_filename, image_base, oat_filename, oat_location)) { 401 LOG(ERROR) << "Failed to create image file " << image_filename; 402 return false; 403 } 404 oat_data_begin = image_writer.GetOatDataBegin(); 405 } 406 407 std::unique_ptr<File> oat_file(OS::OpenFileReadWrite(oat_filename.c_str())); 408 if (oat_file.get() == nullptr) { 409 PLOG(ERROR) << "Failed to open ELF file: " << oat_filename; 410 return false; 411 } 412 if (!ElfFixup::Fixup(oat_file.get(), oat_data_begin)) { 413 LOG(ERROR) << "Failed to fixup ELF file " << oat_file->GetPath(); 414 return false; 415 } 416 return true; 417 } 418 419 private: 420 explicit Dex2Oat(const CompilerOptions* compiler_options, 421 Compiler::Kind compiler_kind, 422 InstructionSet instruction_set, 423 InstructionSetFeatures instruction_set_features, 424 VerificationResults* verification_results, 425 DexFileToMethodInlinerMap* method_inliner_map, 426 size_t thread_count) 427 : compiler_options_(compiler_options), 428 compiler_kind_(compiler_kind), 429 instruction_set_(instruction_set), 430 instruction_set_features_(instruction_set_features), 431 verification_results_(verification_results), 432 method_inliner_map_(method_inliner_map), 433 runtime_(nullptr), 434 thread_count_(thread_count), 435 start_ns_(NanoTime()) { 436 CHECK(compiler_options != nullptr); 437 CHECK(verification_results != nullptr); 438 CHECK(method_inliner_map != nullptr); 439 } 440 441 bool CreateRuntime(const Runtime::Options& runtime_options, InstructionSet instruction_set) 442 SHARED_TRYLOCK_FUNCTION(true, Locks::mutator_lock_) { 443 if (!Runtime::Create(runtime_options, false)) { 444 LOG(ERROR) << "Failed to create runtime"; 445 return false; 446 } 447 Runtime* runtime = Runtime::Current(); 448 runtime->SetInstructionSet(instruction_set); 449 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) { 450 Runtime::CalleeSaveType type = Runtime::CalleeSaveType(i); 451 if (!runtime->HasCalleeSaveMethod(type)) { 452 runtime->SetCalleeSaveMethod(runtime->CreateCalleeSaveMethod(type), type); 453 } 454 } 455 runtime->GetClassLinker()->FixupDexCaches(runtime->GetResolutionMethod()); 456 runtime_ = runtime; 457 return true; 458 } 459 460 // Appends to dex_files any elements of class_path that it doesn't already 461 // contain. This will open those dex files as necessary. 462 static void OpenClassPathFiles(const std::string& class_path, 463 std::vector<const DexFile*>& dex_files) { 464 std::vector<std::string> parsed; 465 Split(class_path, ':', parsed); 466 // Take Locks::mutator_lock_ so that lock ordering on the ClassLinker::dex_lock_ is maintained. 467 ScopedObjectAccess soa(Thread::Current()); 468 for (size_t i = 0; i < parsed.size(); ++i) { 469 if (DexFilesContains(dex_files, parsed[i])) { 470 continue; 471 } 472 std::string error_msg; 473 const DexFile* dex_file = DexFile::Open(parsed[i].c_str(), parsed[i].c_str(), &error_msg); 474 if (dex_file == nullptr) { 475 LOG(WARNING) << "Failed to open dex file '" << parsed[i] << "': " << error_msg; 476 } else { 477 dex_files.push_back(dex_file); 478 } 479 } 480 } 481 482 // Returns true if dex_files has a dex with the named location. 483 static bool DexFilesContains(const std::vector<const DexFile*>& dex_files, 484 const std::string& location) { 485 for (size_t i = 0; i < dex_files.size(); ++i) { 486 if (dex_files[i]->GetLocation() == location) { 487 return true; 488 } 489 } 490 return false; 491 } 492 493 const CompilerOptions* const compiler_options_; 494 const Compiler::Kind compiler_kind_; 495 496 const InstructionSet instruction_set_; 497 const InstructionSetFeatures instruction_set_features_; 498 499 VerificationResults* const verification_results_; 500 DexFileToMethodInlinerMap* const method_inliner_map_; 501 Runtime* runtime_; 502 size_t thread_count_; 503 uint64_t start_ns_; 504 505 DISALLOW_IMPLICIT_CONSTRUCTORS(Dex2Oat); 506}; 507 508static bool ParseInt(const char* in, int* out) { 509 char* end; 510 int result = strtol(in, &end, 10); 511 if (in == end || *end != '\0') { 512 return false; 513 } 514 *out = result; 515 return true; 516} 517 518static size_t OpenDexFiles(const std::vector<const char*>& dex_filenames, 519 const std::vector<const char*>& dex_locations, 520 std::vector<const DexFile*>& dex_files) { 521 size_t failure_count = 0; 522 for (size_t i = 0; i < dex_filenames.size(); i++) { 523 const char* dex_filename = dex_filenames[i]; 524 const char* dex_location = dex_locations[i]; 525 ATRACE_BEGIN(StringPrintf("Opening dex file '%s'", dex_filenames[i]).c_str()); 526 std::string error_msg; 527 if (!OS::FileExists(dex_filename)) { 528 LOG(WARNING) << "Skipping non-existent dex file '" << dex_filename << "'"; 529 continue; 530 } 531 const DexFile* dex_file = DexFile::Open(dex_filename, dex_location, &error_msg); 532 if (dex_file == nullptr) { 533 LOG(WARNING) << "Failed to open .dex from file '" << dex_filename << "': " << error_msg; 534 ++failure_count; 535 } else { 536 dex_files.push_back(dex_file); 537 } 538 ATRACE_END(); 539 } 540 return failure_count; 541} 542 543// The primary goal of the watchdog is to prevent stuck build servers 544// during development when fatal aborts lead to a cascade of failures 545// that result in a deadlock. 546class WatchDog { 547// WatchDog defines its own CHECK_PTHREAD_CALL to avoid using Log which uses locks 548#undef CHECK_PTHREAD_CALL 549#define CHECK_WATCH_DOG_PTHREAD_CALL(call, args, what) \ 550 do { \ 551 int rc = call args; \ 552 if (rc != 0) { \ 553 errno = rc; \ 554 std::string message(# call); \ 555 message += " failed for "; \ 556 message += reason; \ 557 Fatal(message); \ 558 } \ 559 } while (false) 560 561 public: 562 explicit WatchDog(bool is_watch_dog_enabled) { 563 is_watch_dog_enabled_ = is_watch_dog_enabled; 564 if (!is_watch_dog_enabled_) { 565 return; 566 } 567 shutting_down_ = false; 568 const char* reason = "dex2oat watch dog thread startup"; 569 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_init, (&mutex_, nullptr), reason); 570 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_cond_init, (&cond_, nullptr), reason); 571 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_attr_init, (&attr_), reason); 572 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_create, (&pthread_, &attr_, &CallBack, this), reason); 573 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_attr_destroy, (&attr_), reason); 574 } 575 ~WatchDog() { 576 if (!is_watch_dog_enabled_) { 577 return; 578 } 579 const char* reason = "dex2oat watch dog thread shutdown"; 580 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_lock, (&mutex_), reason); 581 shutting_down_ = true; 582 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_cond_signal, (&cond_), reason); 583 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_unlock, (&mutex_), reason); 584 585 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_join, (pthread_, nullptr), reason); 586 587 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_cond_destroy, (&cond_), reason); 588 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_destroy, (&mutex_), reason); 589 } 590 591 private: 592 static void* CallBack(void* arg) { 593 WatchDog* self = reinterpret_cast<WatchDog*>(arg); 594 ::art::SetThreadName("dex2oat watch dog"); 595 self->Wait(); 596 return nullptr; 597 } 598 599 static void Message(char severity, const std::string& message) { 600 // TODO: Remove when we switch to LOG when we can guarantee it won't prevent shutdown in error 601 // cases. 602 fprintf(stderr, "dex2oat%s %c %d %d %s\n", 603 kIsDebugBuild ? "d" : "", 604 severity, 605 getpid(), 606 GetTid(), 607 message.c_str()); 608 } 609 610 static void Warn(const std::string& message) { 611 Message('W', message); 612 } 613 614 static void Fatal(const std::string& message) { 615 Message('F', message); 616 exit(1); 617 } 618 619 void Wait() { 620 bool warning = true; 621 CHECK_GT(kWatchDogTimeoutSeconds, kWatchDogWarningSeconds); 622 // TODO: tune the multiplier for GC verification, the following is just to make the timeout 623 // large. 624 int64_t multiplier = kVerifyObjectSupport > kVerifyObjectModeFast ? 100 : 1; 625 timespec warning_ts; 626 InitTimeSpec(true, CLOCK_REALTIME, multiplier * kWatchDogWarningSeconds * 1000, 0, &warning_ts); 627 timespec timeout_ts; 628 InitTimeSpec(true, CLOCK_REALTIME, multiplier * kWatchDogTimeoutSeconds * 1000, 0, &timeout_ts); 629 const char* reason = "dex2oat watch dog thread waiting"; 630 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_lock, (&mutex_), reason); 631 while (!shutting_down_) { 632 int rc = TEMP_FAILURE_RETRY(pthread_cond_timedwait(&cond_, &mutex_, 633 warning ? &warning_ts 634 : &timeout_ts)); 635 if (rc == ETIMEDOUT) { 636 std::string message(StringPrintf("dex2oat did not finish after %d seconds", 637 warning ? kWatchDogWarningSeconds 638 : kWatchDogTimeoutSeconds)); 639 if (warning) { 640 Warn(message.c_str()); 641 warning = false; 642 } else { 643 Fatal(message.c_str()); 644 } 645 } else if (rc != 0) { 646 std::string message(StringPrintf("pthread_cond_timedwait failed: %s", 647 strerror(errno))); 648 Fatal(message.c_str()); 649 } 650 } 651 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_unlock, (&mutex_), reason); 652 } 653 654 // When setting timeouts, keep in mind that the build server may not be as fast as your desktop. 655#if ART_USE_PORTABLE_COMPILER 656 static const unsigned int kWatchDogWarningSeconds = 2 * 60; // 2 minutes. 657 static const unsigned int kWatchDogTimeoutSeconds = 30 * 60; // 25 minutes + buffer. 658#else 659 static const unsigned int kWatchDogWarningSeconds = 1 * 60; // 1 minute. 660 static const unsigned int kWatchDogTimeoutSeconds = 6 * 60; // 5 minutes + buffer. 661#endif 662 663 bool is_watch_dog_enabled_; 664 bool shutting_down_; 665 // TODO: Switch to Mutex when we can guarantee it won't prevent shutdown in error cases. 666 pthread_mutex_t mutex_; 667 pthread_cond_t cond_; 668 pthread_attr_t attr_; 669 pthread_t pthread_; 670}; 671const unsigned int WatchDog::kWatchDogWarningSeconds; 672const unsigned int WatchDog::kWatchDogTimeoutSeconds; 673 674// Given a set of instruction features from the build, parse it. The 675// input 'str' is a comma separated list of feature names. Parse it and 676// return the InstructionSetFeatures object. 677static InstructionSetFeatures ParseFeatureList(std::string str) { 678 InstructionSetFeatures result; 679 typedef std::vector<std::string> FeatureList; 680 FeatureList features; 681 Split(str, ',', features); 682 for (FeatureList::iterator i = features.begin(); i != features.end(); i++) { 683 std::string feature = Trim(*i); 684 if (feature == "default") { 685 // Nothing to do. 686 } else if (feature == "div") { 687 // Supports divide instruction. 688 result.SetHasDivideInstruction(true); 689 } else if (feature == "nodiv") { 690 // Turn off support for divide instruction. 691 result.SetHasDivideInstruction(false); 692 } else if (feature == "lpae") { 693 // Supports Large Physical Address Extension. 694 result.SetHasLpae(true); 695 } else if (feature == "nolpae") { 696 // Turn off support for Large Physical Address Extension. 697 result.SetHasLpae(false); 698 } else { 699 Usage("Unknown instruction set feature: '%s'", feature.c_str()); 700 } 701 } 702 // others... 703 return result; 704} 705 706static int dex2oat(int argc, char** argv) { 707 original_argc = argc; 708 original_argv = argv; 709 710 TimingLogger timings("compiler", false, false); 711 CumulativeLogger compiler_phases_timings("compilation times"); 712 713 InitLogging(argv); 714 715 // Skip over argv[0]. 716 argv++; 717 argc--; 718 719 if (argc == 0) { 720 Usage("No arguments specified"); 721 } 722 723 std::vector<const char*> dex_filenames; 724 std::vector<const char*> dex_locations; 725 int zip_fd = -1; 726 std::string zip_location; 727 std::string oat_filename; 728 std::string oat_symbols; 729 std::string oat_location; 730 int oat_fd = -1; 731 std::string bitcode_filename; 732 const char* image_classes_zip_filename = nullptr; 733 const char* image_classes_filename = nullptr; 734 std::string image_filename; 735 std::string boot_image_filename; 736 uintptr_t image_base = 0; 737 std::string android_root; 738 std::vector<const char*> runtime_args; 739 int thread_count = sysconf(_SC_NPROCESSORS_CONF); 740 Compiler::Kind compiler_kind = kUsePortableCompiler 741 ? Compiler::kPortable 742 : Compiler::kQuick; 743 const char* compiler_filter_string = nullptr; 744 int huge_method_threshold = CompilerOptions::kDefaultHugeMethodThreshold; 745 int large_method_threshold = CompilerOptions::kDefaultLargeMethodThreshold; 746 int small_method_threshold = CompilerOptions::kDefaultSmallMethodThreshold; 747 int tiny_method_threshold = CompilerOptions::kDefaultTinyMethodThreshold; 748 int num_dex_methods_threshold = CompilerOptions::kDefaultNumDexMethodsThreshold; 749 750 // Take the default set of instruction features from the build. 751 InstructionSetFeatures instruction_set_features = 752 ParseFeatureList(Runtime::GetDefaultInstructionSetFeatures()); 753 754 InstructionSet instruction_set = kRuntimeISA; 755 756 // Profile file to use 757 std::string profile_file; 758 759 bool is_host = false; 760 bool dump_stats = false; 761 bool dump_timing = false; 762 bool dump_passes = false; 763 bool dump_slow_timing = kIsDebugBuild; 764 bool watch_dog_enabled = !kIsTargetBuild; 765 bool generate_gdb_information = kIsDebugBuild; 766 767 for (int i = 0; i < argc; i++) { 768 const StringPiece option(argv[i]); 769 const bool log_options = false; 770 if (log_options) { 771 LOG(INFO) << "dex2oat: option[" << i << "]=" << argv[i]; 772 } 773 if (option.starts_with("--dex-file=")) { 774 dex_filenames.push_back(option.substr(strlen("--dex-file=")).data()); 775 } else if (option.starts_with("--dex-location=")) { 776 dex_locations.push_back(option.substr(strlen("--dex-location=")).data()); 777 } else if (option.starts_with("--zip-fd=")) { 778 const char* zip_fd_str = option.substr(strlen("--zip-fd=")).data(); 779 if (!ParseInt(zip_fd_str, &zip_fd)) { 780 Usage("Failed to parse --zip-fd argument '%s' as an integer", zip_fd_str); 781 } 782 if (zip_fd < 0) { 783 Usage("--zip-fd passed a negative value %d", zip_fd); 784 } 785 } else if (option.starts_with("--zip-location=")) { 786 zip_location = option.substr(strlen("--zip-location=")).data(); 787 } else if (option.starts_with("--oat-file=")) { 788 oat_filename = option.substr(strlen("--oat-file=")).data(); 789 } else if (option.starts_with("--oat-symbols=")) { 790 oat_symbols = option.substr(strlen("--oat-symbols=")).data(); 791 } else if (option.starts_with("--oat-fd=")) { 792 const char* oat_fd_str = option.substr(strlen("--oat-fd=")).data(); 793 if (!ParseInt(oat_fd_str, &oat_fd)) { 794 Usage("Failed to parse --oat-fd argument '%s' as an integer", oat_fd_str); 795 } 796 if (oat_fd < 0) { 797 Usage("--oat-fd passed a negative value %d", oat_fd); 798 } 799 } else if (option == "--watch-dog") { 800 watch_dog_enabled = true; 801 } else if (option == "--no-watch-dog") { 802 watch_dog_enabled = false; 803 } else if (option == "--gen-gdb-info") { 804 generate_gdb_information = true; 805 } else if (option == "--no-gen-gdb-info") { 806 generate_gdb_information = false; 807 } else if (option.starts_with("-j")) { 808 const char* thread_count_str = option.substr(strlen("-j")).data(); 809 if (!ParseInt(thread_count_str, &thread_count)) { 810 Usage("Failed to parse -j argument '%s' as an integer", thread_count_str); 811 } 812 } else if (option.starts_with("--oat-location=")) { 813 oat_location = option.substr(strlen("--oat-location=")).data(); 814 } else if (option.starts_with("--bitcode=")) { 815 bitcode_filename = option.substr(strlen("--bitcode=")).data(); 816 } else if (option.starts_with("--image=")) { 817 image_filename = option.substr(strlen("--image=")).data(); 818 } else if (option.starts_with("--image-classes=")) { 819 image_classes_filename = option.substr(strlen("--image-classes=")).data(); 820 } else if (option.starts_with("--image-classes-zip=")) { 821 image_classes_zip_filename = option.substr(strlen("--image-classes-zip=")).data(); 822 } else if (option.starts_with("--base=")) { 823 const char* image_base_str = option.substr(strlen("--base=")).data(); 824 char* end; 825 image_base = strtoul(image_base_str, &end, 16); 826 if (end == image_base_str || *end != '\0') { 827 Usage("Failed to parse hexadecimal value for option %s", option.data()); 828 } 829 } else if (option.starts_with("--boot-image=")) { 830 boot_image_filename = option.substr(strlen("--boot-image=")).data(); 831 } else if (option.starts_with("--android-root=")) { 832 android_root = option.substr(strlen("--android-root=")).data(); 833 } else if (option.starts_with("--instruction-set=")) { 834 StringPiece instruction_set_str = option.substr(strlen("--instruction-set=")).data(); 835 if (instruction_set_str == "arm") { 836 instruction_set = kThumb2; 837 } else if (instruction_set_str == "arm64") { 838 instruction_set = kArm64; 839 } else if (instruction_set_str == "mips") { 840 instruction_set = kMips; 841 } else if (instruction_set_str == "x86") { 842 instruction_set = kX86; 843 } else if (instruction_set_str == "x86_64") { 844 instruction_set = kX86_64; 845 } 846 } else if (option.starts_with("--instruction-set-features=")) { 847 StringPiece str = option.substr(strlen("--instruction-set-features=")).data(); 848 instruction_set_features = ParseFeatureList(str.as_string()); 849 } else if (option.starts_with("--compiler-backend=")) { 850 StringPiece backend_str = option.substr(strlen("--compiler-backend=")).data(); 851 if (backend_str == "Quick") { 852 compiler_kind = Compiler::kQuick; 853 } else if (backend_str == "Optimizing") { 854 compiler_kind = Compiler::kOptimizing; 855 } else if (backend_str == "Portable") { 856 compiler_kind = Compiler::kPortable; 857 } 858 } else if (option.starts_with("--compiler-filter=")) { 859 compiler_filter_string = option.substr(strlen("--compiler-filter=")).data(); 860 } else if (option.starts_with("--huge-method-max=")) { 861 const char* threshold = option.substr(strlen("--huge-method-max=")).data(); 862 if (!ParseInt(threshold, &huge_method_threshold)) { 863 Usage("Failed to parse --huge-method-max '%s' as an integer", threshold); 864 } 865 if (huge_method_threshold < 0) { 866 Usage("--huge-method-max passed a negative value %s", huge_method_threshold); 867 } 868 } else if (option.starts_with("--large-method-max=")) { 869 const char* threshold = option.substr(strlen("--large-method-max=")).data(); 870 if (!ParseInt(threshold, &large_method_threshold)) { 871 Usage("Failed to parse --large-method-max '%s' as an integer", threshold); 872 } 873 if (large_method_threshold < 0) { 874 Usage("--large-method-max passed a negative value %s", large_method_threshold); 875 } 876 } else if (option.starts_with("--small-method-max=")) { 877 const char* threshold = option.substr(strlen("--small-method-max=")).data(); 878 if (!ParseInt(threshold, &small_method_threshold)) { 879 Usage("Failed to parse --small-method-max '%s' as an integer", threshold); 880 } 881 if (small_method_threshold < 0) { 882 Usage("--small-method-max passed a negative value %s", small_method_threshold); 883 } 884 } else if (option.starts_with("--tiny-method-max=")) { 885 const char* threshold = option.substr(strlen("--tiny-method-max=")).data(); 886 if (!ParseInt(threshold, &tiny_method_threshold)) { 887 Usage("Failed to parse --tiny-method-max '%s' as an integer", threshold); 888 } 889 if (tiny_method_threshold < 0) { 890 Usage("--tiny-method-max passed a negative value %s", tiny_method_threshold); 891 } 892 } else if (option.starts_with("--num-dex-methods=")) { 893 const char* threshold = option.substr(strlen("--num-dex-methods=")).data(); 894 if (!ParseInt(threshold, &num_dex_methods_threshold)) { 895 Usage("Failed to parse --num-dex-methods '%s' as an integer", threshold); 896 } 897 if (num_dex_methods_threshold < 0) { 898 Usage("--num-dex-methods passed a negative value %s", num_dex_methods_threshold); 899 } 900 } else if (option == "--host") { 901 is_host = true; 902 } else if (option == "--runtime-arg") { 903 if (++i >= argc) { 904 Usage("Missing required argument for --runtime-arg"); 905 } 906 if (log_options) { 907 LOG(INFO) << "dex2oat: option[" << i << "]=" << argv[i]; 908 } 909 runtime_args.push_back(argv[i]); 910 } else if (option == "--dump-timing") { 911 dump_timing = true; 912 } else if (option == "--dump-passes") { 913 dump_passes = true; 914 } else if (option == "--dump-stats") { 915 dump_stats = true; 916 } else if (option.starts_with("--profile-file=")) { 917 profile_file = option.substr(strlen("--profile-file=")).data(); 918 VLOG(compiler) << "dex2oat: profile file is " << profile_file; 919 } else if (option == "--no-profile-file") { 920 // No profile 921 } else if (option == "--print-pass-names") { 922 PassDriverME::PrintPassNames(); 923 } else if (option.starts_with("--disable-passes=")) { 924 std::string disable_passes = option.substr(strlen("--disable-passes=")).data(); 925 PassDriverME::CreateDefaultPassList(disable_passes); 926 } else { 927 Usage("Unknown argument %s", option.data()); 928 } 929 } 930 931 if (oat_filename.empty() && oat_fd == -1) { 932 Usage("Output must be supplied with either --oat-file or --oat-fd"); 933 } 934 935 if (!oat_filename.empty() && oat_fd != -1) { 936 Usage("--oat-file should not be used with --oat-fd"); 937 } 938 939 if (!oat_symbols.empty() && oat_fd != -1) { 940 Usage("--oat-symbols should not be used with --oat-fd"); 941 } 942 943 if (!oat_symbols.empty() && is_host) { 944 Usage("--oat-symbols should not be used with --host"); 945 } 946 947 if (oat_fd != -1 && !image_filename.empty()) { 948 Usage("--oat-fd should not be used with --image"); 949 } 950 951 if (android_root.empty()) { 952 const char* android_root_env_var = getenv("ANDROID_ROOT"); 953 if (android_root_env_var == nullptr) { 954 Usage("--android-root unspecified and ANDROID_ROOT not set"); 955 } 956 android_root += android_root_env_var; 957 } 958 959 bool image = (!image_filename.empty()); 960 if (!image && boot_image_filename.empty()) { 961 boot_image_filename += GetAndroidRoot(); 962 boot_image_filename += "/framework/boot.art"; 963 } 964 std::string boot_image_option; 965 if (!boot_image_filename.empty()) { 966 boot_image_option += "-Ximage:"; 967 boot_image_option += boot_image_filename; 968 } 969 970 if (image_classes_filename != nullptr && !image) { 971 Usage("--image-classes should only be used with --image"); 972 } 973 974 if (image_classes_filename != nullptr && !boot_image_option.empty()) { 975 Usage("--image-classes should not be used with --boot-image"); 976 } 977 978 if (image_classes_zip_filename != nullptr && image_classes_filename == nullptr) { 979 Usage("--image-classes-zip should be used with --image-classes"); 980 } 981 982 if (dex_filenames.empty() && zip_fd == -1) { 983 Usage("Input must be supplied with either --dex-file or --zip-fd"); 984 } 985 986 if (!dex_filenames.empty() && zip_fd != -1) { 987 Usage("--dex-file should not be used with --zip-fd"); 988 } 989 990 if (!dex_filenames.empty() && !zip_location.empty()) { 991 Usage("--dex-file should not be used with --zip-location"); 992 } 993 994 if (dex_locations.empty()) { 995 for (size_t i = 0; i < dex_filenames.size(); i++) { 996 dex_locations.push_back(dex_filenames[i]); 997 } 998 } else if (dex_locations.size() != dex_filenames.size()) { 999 Usage("--dex-location arguments do not match --dex-file arguments"); 1000 } 1001 1002 if (zip_fd != -1 && zip_location.empty()) { 1003 Usage("--zip-location should be supplied with --zip-fd"); 1004 } 1005 1006 if (boot_image_option.empty()) { 1007 if (image_base == 0) { 1008 Usage("Non-zero --base not specified"); 1009 } 1010 } 1011 1012 std::string oat_stripped(oat_filename); 1013 std::string oat_unstripped; 1014 if (!oat_symbols.empty()) { 1015 oat_unstripped += oat_symbols; 1016 } else { 1017 oat_unstripped += oat_filename; 1018 } 1019 1020 if (compiler_filter_string == nullptr) { 1021 if (instruction_set == kX86_64 || instruction_set == kArm64 || instruction_set == kMips) { 1022 // TODO: implement/fix compilers for these architectures. 1023 compiler_filter_string = "interpret-only"; 1024 } else if (image) { 1025 compiler_filter_string = "speed"; 1026 } else { 1027#if ART_SMALL_MODE 1028 compiler_filter_string = "interpret-only"; 1029#else 1030 compiler_filter_string = "speed"; 1031#endif 1032 } 1033 } 1034 CHECK(compiler_filter_string != nullptr); 1035 CompilerOptions::CompilerFilter compiler_filter = CompilerOptions::kDefaultCompilerFilter; 1036 if (strcmp(compiler_filter_string, "verify-none") == 0) { 1037 compiler_filter = CompilerOptions::kVerifyNone; 1038 } else if (strcmp(compiler_filter_string, "interpret-only") == 0) { 1039 compiler_filter = CompilerOptions::kInterpretOnly; 1040 } else if (strcmp(compiler_filter_string, "space") == 0) { 1041 compiler_filter = CompilerOptions::kSpace; 1042 } else if (strcmp(compiler_filter_string, "balanced") == 0) { 1043 compiler_filter = CompilerOptions::kBalanced; 1044 } else if (strcmp(compiler_filter_string, "speed") == 0) { 1045 compiler_filter = CompilerOptions::kSpeed; 1046 } else if (strcmp(compiler_filter_string, "everything") == 0) { 1047 compiler_filter = CompilerOptions::kEverything; 1048 } else { 1049 Usage("Unknown --compiler-filter value %s", compiler_filter_string); 1050 } 1051 1052 CompilerOptions compiler_options(compiler_filter, 1053 huge_method_threshold, 1054 large_method_threshold, 1055 small_method_threshold, 1056 tiny_method_threshold, 1057 num_dex_methods_threshold, 1058 generate_gdb_information 1059#ifdef ART_SEA_IR_MODE 1060 , compiler_options.sea_ir_ = true; 1061#endif 1062 ); // NOLINT(whitespace/parens) 1063 1064 // Done with usage checks, enable watchdog if requested 1065 WatchDog watch_dog(watch_dog_enabled); 1066 1067 // Check early that the result of compilation can be written 1068 std::unique_ptr<File> oat_file; 1069 bool create_file = !oat_unstripped.empty(); // as opposed to using open file descriptor 1070 if (create_file) { 1071 oat_file.reset(OS::CreateEmptyFile(oat_unstripped.c_str())); 1072 if (oat_location.empty()) { 1073 oat_location = oat_filename; 1074 } 1075 } else { 1076 oat_file.reset(new File(oat_fd, oat_location)); 1077 oat_file->DisableAutoClose(); 1078 } 1079 if (oat_file.get() == nullptr) { 1080 PLOG(ERROR) << "Failed to create oat file: " << oat_location; 1081 return EXIT_FAILURE; 1082 } 1083 if (create_file && fchmod(oat_file->Fd(), 0644) != 0) { 1084 PLOG(ERROR) << "Failed to make oat file world readable: " << oat_location; 1085 return EXIT_FAILURE; 1086 } 1087 1088 timings.StartSplit("dex2oat Setup"); 1089 LOG(INFO) << CommandLine(); 1090 1091 Runtime::Options runtime_options; 1092 std::vector<const DexFile*> boot_class_path; 1093 if (boot_image_option.empty()) { 1094 size_t failure_count = OpenDexFiles(dex_filenames, dex_locations, boot_class_path); 1095 if (failure_count > 0) { 1096 LOG(ERROR) << "Failed to open some dex files: " << failure_count; 1097 return EXIT_FAILURE; 1098 } 1099 runtime_options.push_back(std::make_pair("bootclasspath", &boot_class_path)); 1100 } else { 1101 runtime_options.push_back(std::make_pair(boot_image_option.c_str(), nullptr)); 1102 } 1103 for (size_t i = 0; i < runtime_args.size(); i++) { 1104 runtime_options.push_back(std::make_pair(runtime_args[i], nullptr)); 1105 } 1106 1107 VerificationResults verification_results(&compiler_options); 1108 DexFileToMethodInlinerMap method_inliner_map; 1109 CompilerCallbacksImpl callbacks(&verification_results, &method_inliner_map); 1110 runtime_options.push_back(std::make_pair("compilercallbacks", &callbacks)); 1111 runtime_options.push_back( 1112 std::make_pair("imageinstructionset", 1113 reinterpret_cast<const void*>(GetInstructionSetString(instruction_set)))); 1114 1115 Dex2Oat* p_dex2oat; 1116 if (!Dex2Oat::Create(&p_dex2oat, 1117 runtime_options, 1118 compiler_options, 1119 compiler_kind, 1120 instruction_set, 1121 instruction_set_features, 1122 &verification_results, 1123 &method_inliner_map, 1124 thread_count)) { 1125 LOG(ERROR) << "Failed to create dex2oat"; 1126 return EXIT_FAILURE; 1127 } 1128 std::unique_ptr<Dex2Oat> dex2oat(p_dex2oat); 1129 // Runtime::Create acquired the mutator_lock_ that is normally given away when we Runtime::Start, 1130 // give it away now so that we don't starve GC. 1131 Thread* self = Thread::Current(); 1132 self->TransitionFromRunnableToSuspended(kNative); 1133 // If we're doing the image, override the compiler filter to force full compilation. Must be 1134 // done ahead of WellKnownClasses::Init that causes verification. Note: doesn't force 1135 // compilation of class initializers. 1136 // Whilst we're in native take the opportunity to initialize well known classes. 1137 WellKnownClasses::Init(self->GetJniEnv()); 1138 1139 // If --image-classes was specified, calculate the full list of classes to include in the image 1140 std::unique_ptr<CompilerDriver::DescriptorSet> image_classes(nullptr); 1141 if (image_classes_filename != nullptr) { 1142 std::string error_msg; 1143 if (image_classes_zip_filename != nullptr) { 1144 image_classes.reset(dex2oat->ReadImageClassesFromZip(image_classes_zip_filename, 1145 image_classes_filename, 1146 &error_msg)); 1147 } else { 1148 image_classes.reset(dex2oat->ReadImageClassesFromFile(image_classes_filename)); 1149 } 1150 if (image_classes.get() == nullptr) { 1151 LOG(ERROR) << "Failed to create list of image classes from '" << image_classes_filename << 1152 "': " << error_msg; 1153 return EXIT_FAILURE; 1154 } 1155 } else if (image) { 1156 image_classes.reset(new CompilerDriver::DescriptorSet); 1157 } 1158 1159 std::vector<const DexFile*> dex_files; 1160 if (boot_image_option.empty()) { 1161 dex_files = Runtime::Current()->GetClassLinker()->GetBootClassPath(); 1162 } else { 1163 if (dex_filenames.empty()) { 1164 ATRACE_BEGIN("Opening zip archive from file descriptor"); 1165 std::string error_msg; 1166 std::unique_ptr<ZipArchive> zip_archive(ZipArchive::OpenFromFd(zip_fd, zip_location.c_str(), 1167 &error_msg)); 1168 if (zip_archive.get() == nullptr) { 1169 LOG(ERROR) << "Failed to open zip from file descriptor for '" << zip_location << "': " 1170 << error_msg; 1171 return EXIT_FAILURE; 1172 } 1173 const DexFile* dex_file = DexFile::Open(*zip_archive.get(), zip_location, &error_msg); 1174 if (dex_file == nullptr) { 1175 LOG(ERROR) << "Failed to open dex from file descriptor for zip file '" << zip_location 1176 << "': " << error_msg; 1177 return EXIT_FAILURE; 1178 } 1179 dex_files.push_back(dex_file); 1180 ATRACE_END(); 1181 } else { 1182 size_t failure_count = OpenDexFiles(dex_filenames, dex_locations, dex_files); 1183 if (failure_count > 0) { 1184 LOG(ERROR) << "Failed to open some dex files: " << failure_count; 1185 return EXIT_FAILURE; 1186 } 1187 } 1188 1189 const bool kSaveDexInput = false; 1190 if (kSaveDexInput) { 1191 for (size_t i = 0; i < dex_files.size(); ++i) { 1192 const DexFile* dex_file = dex_files[i]; 1193 std::string tmp_file_name(StringPrintf("/data/local/tmp/dex2oat.%d.%zd.dex", getpid(), i)); 1194 std::unique_ptr<File> tmp_file(OS::CreateEmptyFile(tmp_file_name.c_str())); 1195 if (tmp_file.get() == nullptr) { 1196 PLOG(ERROR) << "Failed to open file " << tmp_file_name 1197 << ". Try: adb shell chmod 777 /data/local/tmp"; 1198 continue; 1199 } 1200 tmp_file->WriteFully(dex_file->Begin(), dex_file->Size()); 1201 LOG(INFO) << "Wrote input to " << tmp_file_name; 1202 } 1203 } 1204 } 1205 // Ensure opened dex files are writable for dex-to-dex transformations. 1206 for (const auto& dex_file : dex_files) { 1207 if (!dex_file->EnableWrite()) { 1208 PLOG(ERROR) << "Failed to make .dex file writeable '" << dex_file->GetLocation() << "'\n"; 1209 } 1210 } 1211 1212 /* 1213 * If we're not in interpret-only or verify-none mode, go ahead and compile small applications. 1214 * Don't bother to check if we're doing the image. 1215 */ 1216 if (!image && compiler_options.IsCompilationEnabled()) { 1217 size_t num_methods = 0; 1218 for (size_t i = 0; i != dex_files.size(); ++i) { 1219 const DexFile* dex_file = dex_files[i]; 1220 CHECK(dex_file != nullptr); 1221 num_methods += dex_file->NumMethodIds(); 1222 } 1223 if (num_methods <= compiler_options.GetNumDexMethodsThreshold()) { 1224 compiler_options.SetCompilerFilter(CompilerOptions::kSpeed); 1225 VLOG(compiler) << "Below method threshold, compiling anyways"; 1226 } 1227 } 1228 1229 std::unique_ptr<const CompilerDriver> compiler(dex2oat->CreateOatFile(boot_image_option, 1230 android_root, 1231 is_host, 1232 dex_files, 1233 oat_file.get(), 1234 bitcode_filename, 1235 image, 1236 image_classes, 1237 dump_stats, 1238 dump_passes, 1239 timings, 1240 compiler_phases_timings, 1241 profile_file)); 1242 1243 if (compiler.get() == nullptr) { 1244 LOG(ERROR) << "Failed to create oat file: " << oat_location; 1245 return EXIT_FAILURE; 1246 } 1247 1248 VLOG(compiler) << "Oat file written successfully (unstripped): " << oat_location; 1249 1250 // Notes on the interleaving of creating the image and oat file to 1251 // ensure the references between the two are correct. 1252 // 1253 // Currently we have a memory layout that looks something like this: 1254 // 1255 // +--------------+ 1256 // | image | 1257 // +--------------+ 1258 // | boot oat | 1259 // +--------------+ 1260 // | alloc spaces | 1261 // +--------------+ 1262 // 1263 // There are several constraints on the loading of the image and boot.oat. 1264 // 1265 // 1. The image is expected to be loaded at an absolute address and 1266 // contains Objects with absolute pointers within the image. 1267 // 1268 // 2. There are absolute pointers from Methods in the image to their 1269 // code in the oat. 1270 // 1271 // 3. There are absolute pointers from the code in the oat to Methods 1272 // in the image. 1273 // 1274 // 4. There are absolute pointers from code in the oat to other code 1275 // in the oat. 1276 // 1277 // To get this all correct, we go through several steps. 1278 // 1279 // 1. We have already created that oat file above with 1280 // CreateOatFile. Originally this was just our own proprietary file 1281 // but now it is contained within an ELF dynamic object (aka an .so 1282 // file). The Compiler returned by CreateOatFile provides 1283 // PatchInformation for references to oat code and Methods that need 1284 // to be update once we know where the oat file will be located 1285 // after the image. 1286 // 1287 // 2. We create the image file. It needs to know where the oat file 1288 // will be loaded after itself. Originally when oat file was simply 1289 // memory mapped so we could predict where its contents were based 1290 // on the file size. Now that it is an ELF file, we need to inspect 1291 // the ELF file to understand the in memory segment layout including 1292 // where the oat header is located within. ImageWriter's 1293 // PatchOatCodeAndMethods uses the PatchInformation from the 1294 // Compiler to touch up absolute references in the oat file. 1295 // 1296 // 3. We fixup the ELF program headers so that dlopen will try to 1297 // load the .so at the desired location at runtime by offsetting the 1298 // Elf32_Phdr.p_vaddr values by the desired base address. 1299 // 1300 if (image) { 1301 timings.NewSplit("dex2oat ImageWriter"); 1302 bool image_creation_success = dex2oat->CreateImageFile(image_filename, 1303 image_base, 1304 oat_unstripped, 1305 oat_location, 1306 *compiler.get()); 1307 if (!image_creation_success) { 1308 return EXIT_FAILURE; 1309 } 1310 VLOG(compiler) << "Image written successfully: " << image_filename; 1311 } 1312 1313 if (is_host) { 1314 if (dump_timing || (dump_slow_timing && timings.GetTotalNs() > MsToNs(1000))) { 1315 LOG(INFO) << Dumpable<TimingLogger>(timings); 1316 } 1317 if (dump_passes) { 1318 LOG(INFO) << Dumpable<CumulativeLogger>(*compiler.get()->GetTimingsLogger()); 1319 } 1320 return EXIT_SUCCESS; 1321 } 1322 1323 // If we don't want to strip in place, copy from unstripped location to stripped location. 1324 // We need to strip after image creation because FixupElf needs to use .strtab. 1325 if (oat_unstripped != oat_stripped) { 1326 timings.NewSplit("dex2oat OatFile copy"); 1327 oat_file.reset(); 1328 std::unique_ptr<File> in(OS::OpenFileForReading(oat_unstripped.c_str())); 1329 std::unique_ptr<File> out(OS::CreateEmptyFile(oat_stripped.c_str())); 1330 size_t buffer_size = 8192; 1331 std::unique_ptr<uint8_t> buffer(new uint8_t[buffer_size]); 1332 while (true) { 1333 int bytes_read = TEMP_FAILURE_RETRY(read(in->Fd(), buffer.get(), buffer_size)); 1334 if (bytes_read <= 0) { 1335 break; 1336 } 1337 bool write_ok = out->WriteFully(buffer.get(), bytes_read); 1338 CHECK(write_ok); 1339 } 1340 oat_file.reset(out.release()); 1341 VLOG(compiler) << "Oat file copied successfully (stripped): " << oat_stripped; 1342 } 1343 1344#if ART_USE_PORTABLE_COMPILER // We currently only generate symbols on Portable 1345 timings.NewSplit("dex2oat ElfStripper"); 1346 // Strip unneeded sections for target 1347 off_t seek_actual = lseek(oat_file->Fd(), 0, SEEK_SET); 1348 CHECK_EQ(0, seek_actual); 1349 std::string error_msg; 1350 CHECK(ElfStripper::Strip(oat_file.get(), &error_msg)) << error_msg; 1351 1352 1353 // We wrote the oat file successfully, and want to keep it. 1354 VLOG(compiler) << "Oat file written successfully (stripped): " << oat_location; 1355#endif // ART_USE_PORTABLE_COMPILER 1356 1357 timings.EndSplit(); 1358 1359 if (dump_timing || (dump_slow_timing && timings.GetTotalNs() > MsToNs(1000))) { 1360 LOG(INFO) << Dumpable<TimingLogger>(timings); 1361 } 1362 if (dump_passes) { 1363 LOG(INFO) << Dumpable<CumulativeLogger>(compiler_phases_timings); 1364 } 1365 1366 // Everything was successfully written, do an explicit exit here to avoid running Runtime 1367 // destructors that take time (bug 10645725) unless we're a debug build or running on valgrind. 1368 if (!kIsDebugBuild && (RUNNING_ON_VALGRIND == 0)) { 1369 dex2oat->LogCompletionTime(); 1370 exit(EXIT_SUCCESS); 1371 } 1372 1373 return EXIT_SUCCESS; 1374} // NOLINT(readability/fn_size) 1375} // namespace art 1376 1377int main(int argc, char** argv) { 1378 return art::dex2oat(argc, argv); 1379} 1380