dex2oat.cc revision 4a200f56b7075309316b04d550c9cc50f8314edd
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.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-file=/system/framework/boot.oat"); 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|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 UniquePtr<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 = NULL; 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 UniquePtr<std::ifstream> image_classes_file(new std::ifstream(image_classes_filename, 260 std::ifstream::in)); 261 if (image_classes_file.get() == NULL) { 262 LOG(ERROR) << "Failed to open image classes file " << image_classes_filename; 263 return NULL; 264 } 265 UniquePtr<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 UniquePtr<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 UniquePtr<ZipArchive> zip_archive(ZipArchive::Open(zip_filename, error_msg)); 289 if (zip_archive.get() == NULL) { 290 return NULL; 291 } 292 UniquePtr<ZipEntry> zip_entry(zip_archive->Find(image_classes_filename, error_msg)); 293 if (zip_entry.get() == NULL) { 294 *error_msg = StringPrintf("Failed to find '%s' within '%s': %s", image_classes_filename, 295 zip_filename, error_msg->c_str()); 296 return NULL; 297 } 298 UniquePtr<MemMap> image_classes_file(zip_entry->ExtractToMemMap(image_classes_filename, 299 error_msg)); 300 if (image_classes_file.get() == NULL) { 301 *error_msg = StringPrintf("Failed to extract '%s' from '%s': %s", image_classes_filename, 302 zip_filename, error_msg->c_str()); 303 return NULL; 304 } 305 const std::string image_classes_string(reinterpret_cast<char*>(image_classes_file->Begin()), 306 image_classes_file->Size()); 307 std::istringstream image_classes_stream(image_classes_string); 308 return ReadImageClasses(image_classes_stream); 309 } 310 311 const CompilerDriver* CreateOatFile(const std::string& boot_image_option, 312 const std::string& android_root, 313 bool is_host, 314 const std::vector<const DexFile*>& dex_files, 315 File* oat_file, 316 const std::string& bitcode_filename, 317 bool image, 318 UniquePtr<CompilerDriver::DescriptorSet>& image_classes, 319 bool dump_stats, 320 bool dump_passes, 321 TimingLogger& timings, 322 CumulativeLogger& compiler_phases_timings, 323 std::string profile_file) { 324 // SirtRef and ClassLoader creation needs to come after Runtime::Create 325 jobject class_loader = NULL; 326 Thread* self = Thread::Current(); 327 if (!boot_image_option.empty()) { 328 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 329 std::vector<const DexFile*> class_path_files(dex_files); 330 OpenClassPathFiles(runtime_->GetClassPathString(), class_path_files); 331 ScopedObjectAccess soa(self); 332 for (size_t i = 0; i < class_path_files.size(); i++) { 333 class_linker->RegisterDexFile(*class_path_files[i]); 334 } 335 soa.Env()->AllocObject(WellKnownClasses::dalvik_system_PathClassLoader); 336 ScopedLocalRef<jobject> class_loader_local(soa.Env(), 337 soa.Env()->AllocObject(WellKnownClasses::dalvik_system_PathClassLoader)); 338 class_loader = soa.Env()->NewGlobalRef(class_loader_local.get()); 339 Runtime::Current()->SetCompileTimeClassPath(class_loader, class_path_files); 340 } 341 342 UniquePtr<CompilerDriver> driver(new CompilerDriver(compiler_options_, 343 verification_results_, 344 method_inliner_map_, 345 compiler_kind_, 346 instruction_set_, 347 instruction_set_features_, 348 image, 349 image_classes.release(), 350 thread_count_, 351 dump_stats, 352 dump_passes, 353 &compiler_phases_timings, 354 profile_file)); 355 356 driver->GetCompiler()->SetBitcodeFileName(*driver.get(), bitcode_filename); 357 358 driver->CompileAll(class_loader, dex_files, &timings); 359 360 timings.NewSplit("dex2oat OatWriter"); 361 std::string image_file_location; 362 uint32_t image_file_location_oat_checksum = 0; 363 uintptr_t image_file_location_oat_data_begin = 0; 364 if (!driver->IsImage()) { 365 TimingLogger::ScopedSplit split("Loading image checksum", &timings); 366 gc::space::ImageSpace* image_space = Runtime::Current()->GetHeap()->GetImageSpace(); 367 image_file_location_oat_checksum = image_space->GetImageHeader().GetOatChecksum(); 368 image_file_location_oat_data_begin = 369 reinterpret_cast<uintptr_t>(image_space->GetImageHeader().GetOatDataBegin()); 370 image_file_location = image_space->GetImageFilename(); 371 } 372 373 OatWriter oat_writer(dex_files, 374 image_file_location_oat_checksum, 375 image_file_location_oat_data_begin, 376 image_file_location, 377 driver.get(), 378 &timings); 379 380 TimingLogger::ScopedSplit split("Writing ELF", &timings); 381 if (!driver->WriteElf(android_root, is_host, dex_files, &oat_writer, oat_file)) { 382 LOG(ERROR) << "Failed to write ELF file " << oat_file->GetPath(); 383 return NULL; 384 } 385 386 return driver.release(); 387 } 388 389 bool CreateImageFile(const std::string& image_filename, 390 uintptr_t image_base, 391 const std::string& oat_filename, 392 const std::string& oat_location, 393 const CompilerDriver& compiler) 394 LOCKS_EXCLUDED(Locks::mutator_lock_) { 395 uintptr_t oat_data_begin; 396 { 397 // ImageWriter is scoped so it can free memory before doing FixupElf 398 ImageWriter image_writer(compiler); 399 if (!image_writer.Write(image_filename, image_base, oat_filename, oat_location)) { 400 LOG(ERROR) << "Failed to create image file " << image_filename; 401 return false; 402 } 403 oat_data_begin = image_writer.GetOatDataBegin(); 404 } 405 406 UniquePtr<File> oat_file(OS::OpenFileReadWrite(oat_filename.c_str())); 407 if (oat_file.get() == NULL) { 408 PLOG(ERROR) << "Failed to open ELF file: " << oat_filename; 409 return false; 410 } 411 if (!ElfFixup::Fixup(oat_file.get(), oat_data_begin)) { 412 LOG(ERROR) << "Failed to fixup ELF file " << oat_file->GetPath(); 413 return false; 414 } 415 return true; 416 } 417 418 private: 419 explicit Dex2Oat(const CompilerOptions* compiler_options, 420 Compiler::Kind compiler_kind, 421 InstructionSet instruction_set, 422 InstructionSetFeatures instruction_set_features, 423 VerificationResults* verification_results, 424 DexFileToMethodInlinerMap* method_inliner_map, 425 size_t thread_count) 426 : compiler_options_(compiler_options), 427 compiler_kind_(compiler_kind), 428 instruction_set_(instruction_set), 429 instruction_set_features_(instruction_set_features), 430 verification_results_(verification_results), 431 method_inliner_map_(method_inliner_map), 432 runtime_(nullptr), 433 thread_count_(thread_count), 434 start_ns_(NanoTime()) { 435 CHECK(compiler_options != nullptr); 436 CHECK(verification_results != nullptr); 437 CHECK(method_inliner_map != nullptr); 438 } 439 440 bool CreateRuntime(const Runtime::Options& runtime_options, InstructionSet instruction_set) 441 SHARED_TRYLOCK_FUNCTION(true, Locks::mutator_lock_) { 442 if (!Runtime::Create(runtime_options, false)) { 443 LOG(ERROR) << "Failed to create runtime"; 444 return false; 445 } 446 Runtime* runtime = Runtime::Current(); 447 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) { 448 Runtime::CalleeSaveType type = Runtime::CalleeSaveType(i); 449 if (!runtime->HasCalleeSaveMethod(type)) { 450 runtime->SetCalleeSaveMethod(runtime->CreateCalleeSaveMethod(instruction_set, type), type); 451 } 452 } 453 runtime->GetClassLinker()->FixupDexCaches(runtime->GetResolutionMethod()); 454 runtime_ = runtime; 455 return true; 456 } 457 458 // Appends to dex_files any elements of class_path that it doesn't already 459 // contain. This will open those dex files as necessary. 460 static void OpenClassPathFiles(const std::string& class_path, 461 std::vector<const DexFile*>& dex_files) { 462 std::vector<std::string> parsed; 463 Split(class_path, ':', parsed); 464 // Take Locks::mutator_lock_ so that lock ordering on the ClassLinker::dex_lock_ is maintained. 465 ScopedObjectAccess soa(Thread::Current()); 466 for (size_t i = 0; i < parsed.size(); ++i) { 467 if (DexFilesContains(dex_files, parsed[i])) { 468 continue; 469 } 470 std::string error_msg; 471 const DexFile* dex_file = DexFile::Open(parsed[i].c_str(), parsed[i].c_str(), &error_msg); 472 if (dex_file == NULL) { 473 LOG(WARNING) << "Failed to open dex file '" << parsed[i] << "': " << error_msg; 474 } else { 475 dex_files.push_back(dex_file); 476 } 477 } 478 } 479 480 // Returns true if dex_files has a dex with the named location. 481 static bool DexFilesContains(const std::vector<const DexFile*>& dex_files, 482 const std::string& location) { 483 for (size_t i = 0; i < dex_files.size(); ++i) { 484 if (dex_files[i]->GetLocation() == location) { 485 return true; 486 } 487 } 488 return false; 489 } 490 491 const CompilerOptions* const compiler_options_; 492 const Compiler::Kind compiler_kind_; 493 494 const InstructionSet instruction_set_; 495 const InstructionSetFeatures instruction_set_features_; 496 497 VerificationResults* const verification_results_; 498 DexFileToMethodInlinerMap* const method_inliner_map_; 499 Runtime* runtime_; 500 size_t thread_count_; 501 uint64_t start_ns_; 502 503 DISALLOW_IMPLICIT_CONSTRUCTORS(Dex2Oat); 504}; 505 506static bool ParseInt(const char* in, int* out) { 507 char* end; 508 int result = strtol(in, &end, 10); 509 if (in == end || *end != '\0') { 510 return false; 511 } 512 *out = result; 513 return true; 514} 515 516static size_t OpenDexFiles(const std::vector<const char*>& dex_filenames, 517 const std::vector<const char*>& dex_locations, 518 std::vector<const DexFile*>& dex_files) { 519 size_t failure_count = 0; 520 for (size_t i = 0; i < dex_filenames.size(); i++) { 521 const char* dex_filename = dex_filenames[i]; 522 const char* dex_location = dex_locations[i]; 523 ATRACE_BEGIN(StringPrintf("Opening dex file '%s'", dex_filenames[i]).c_str()); 524 std::string error_msg; 525 if (!OS::FileExists(dex_filename)) { 526 LOG(WARNING) << "Skipping non-existent dex file '" << dex_filename << "'"; 527 continue; 528 } 529 const DexFile* dex_file = DexFile::Open(dex_filename, dex_location, &error_msg); 530 if (dex_file == NULL) { 531 LOG(WARNING) << "Failed to open .dex from file '" << dex_filename << "': " << error_msg; 532 ++failure_count; 533 } else { 534 dex_files.push_back(dex_file); 535 } 536 ATRACE_END(); 537 } 538 return failure_count; 539} 540 541// The primary goal of the watchdog is to prevent stuck build servers 542// during development when fatal aborts lead to a cascade of failures 543// that result in a deadlock. 544class WatchDog { 545// WatchDog defines its own CHECK_PTHREAD_CALL to avoid using Log which uses locks 546#undef CHECK_PTHREAD_CALL 547#define CHECK_WATCH_DOG_PTHREAD_CALL(call, args, what) \ 548 do { \ 549 int rc = call args; \ 550 if (rc != 0) { \ 551 errno = rc; \ 552 std::string message(# call); \ 553 message += " failed for "; \ 554 message += reason; \ 555 Fatal(message); \ 556 } \ 557 } while (false) 558 559 public: 560 explicit WatchDog(bool is_watch_dog_enabled) { 561 is_watch_dog_enabled_ = is_watch_dog_enabled; 562 if (!is_watch_dog_enabled_) { 563 return; 564 } 565 shutting_down_ = false; 566 const char* reason = "dex2oat watch dog thread startup"; 567 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_init, (&mutex_, NULL), reason); 568 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_cond_init, (&cond_, NULL), reason); 569 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_attr_init, (&attr_), reason); 570 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_create, (&pthread_, &attr_, &CallBack, this), reason); 571 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_attr_destroy, (&attr_), reason); 572 } 573 ~WatchDog() { 574 if (!is_watch_dog_enabled_) { 575 return; 576 } 577 const char* reason = "dex2oat watch dog thread shutdown"; 578 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_lock, (&mutex_), reason); 579 shutting_down_ = true; 580 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_cond_signal, (&cond_), reason); 581 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_unlock, (&mutex_), reason); 582 583 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_join, (pthread_, NULL), reason); 584 585 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_cond_destroy, (&cond_), reason); 586 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_destroy, (&mutex_), reason); 587 } 588 589 private: 590 static void* CallBack(void* arg) { 591 WatchDog* self = reinterpret_cast<WatchDog*>(arg); 592 ::art::SetThreadName("dex2oat watch dog"); 593 self->Wait(); 594 return NULL; 595 } 596 597 static void Message(char severity, const std::string& message) { 598 // TODO: Remove when we switch to LOG when we can guarantee it won't prevent shutdown in error 599 // cases. 600 fprintf(stderr, "dex2oat%s %c %d %d %s\n", 601 kIsDebugBuild ? "d" : "", 602 severity, 603 getpid(), 604 GetTid(), 605 message.c_str()); 606 } 607 608 static void Warn(const std::string& message) { 609 Message('W', message); 610 } 611 612 static void Fatal(const std::string& message) { 613 Message('F', message); 614 exit(1); 615 } 616 617 void Wait() { 618 bool warning = true; 619 CHECK_GT(kWatchDogTimeoutSeconds, kWatchDogWarningSeconds); 620 // TODO: tune the multiplier for GC verification, the following is just to make the timeout 621 // large. 622 int64_t multiplier = kVerifyObjectSupport > kVerifyObjectModeFast ? 100 : 1; 623 timespec warning_ts; 624 InitTimeSpec(true, CLOCK_REALTIME, multiplier * kWatchDogWarningSeconds * 1000, 0, &warning_ts); 625 timespec timeout_ts; 626 InitTimeSpec(true, CLOCK_REALTIME, multiplier * kWatchDogTimeoutSeconds * 1000, 0, &timeout_ts); 627 const char* reason = "dex2oat watch dog thread waiting"; 628 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_lock, (&mutex_), reason); 629 while (!shutting_down_) { 630 int rc = TEMP_FAILURE_RETRY(pthread_cond_timedwait(&cond_, &mutex_, 631 warning ? &warning_ts 632 : &timeout_ts)); 633 if (rc == ETIMEDOUT) { 634 std::string message(StringPrintf("dex2oat did not finish after %d seconds", 635 warning ? kWatchDogWarningSeconds 636 : kWatchDogTimeoutSeconds)); 637 if (warning) { 638 Warn(message.c_str()); 639 warning = false; 640 } else { 641 Fatal(message.c_str()); 642 } 643 } else if (rc != 0) { 644 std::string message(StringPrintf("pthread_cond_timedwait failed: %s", 645 strerror(errno))); 646 Fatal(message.c_str()); 647 } 648 } 649 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_unlock, (&mutex_), reason); 650 } 651 652 // When setting timeouts, keep in mind that the build server may not be as fast as your desktop. 653#if ART_USE_PORTABLE_COMPILER 654 static const unsigned int kWatchDogWarningSeconds = 2 * 60; // 2 minutes. 655 static const unsigned int kWatchDogTimeoutSeconds = 30 * 60; // 25 minutes + buffer. 656#else 657 static const unsigned int kWatchDogWarningSeconds = 1 * 60; // 1 minute. 658 static const unsigned int kWatchDogTimeoutSeconds = 6 * 60; // 5 minutes + buffer. 659#endif 660 661 bool is_watch_dog_enabled_; 662 bool shutting_down_; 663 // TODO: Switch to Mutex when we can guarantee it won't prevent shutdown in error cases. 664 pthread_mutex_t mutex_; 665 pthread_cond_t cond_; 666 pthread_attr_t attr_; 667 pthread_t pthread_; 668}; 669const unsigned int WatchDog::kWatchDogWarningSeconds; 670const unsigned int WatchDog::kWatchDogTimeoutSeconds; 671 672// Given a set of instruction features from the build, parse it. The 673// input 'str' is a comma separated list of feature names. Parse it and 674// return the InstructionSetFeatures object. 675static InstructionSetFeatures ParseFeatureList(std::string str) { 676 InstructionSetFeatures result; 677 typedef std::vector<std::string> FeatureList; 678 FeatureList features; 679 Split(str, ',', features); 680 for (FeatureList::iterator i = features.begin(); i != features.end(); i++) { 681 std::string feature = Trim(*i); 682 if (feature == "default") { 683 // Nothing to do. 684 } else if (feature == "div") { 685 // Supports divide instruction. 686 result.SetHasDivideInstruction(true); 687 } else if (feature == "nodiv") { 688 // Turn off support for divide instruction. 689 result.SetHasDivideInstruction(false); 690 } else { 691 Usage("Unknown instruction set feature: '%s'", feature.c_str()); 692 } 693 } 694 // others... 695 return result; 696} 697 698static int dex2oat(int argc, char** argv) { 699 original_argc = argc; 700 original_argv = argv; 701 702 TimingLogger timings("compiler", false, false); 703 CumulativeLogger compiler_phases_timings("compilation times"); 704 705 InitLogging(argv); 706 707 // Skip over argv[0]. 708 argv++; 709 argc--; 710 711 if (argc == 0) { 712 Usage("No arguments specified"); 713 } 714 715 std::vector<const char*> dex_filenames; 716 std::vector<const char*> dex_locations; 717 int zip_fd = -1; 718 std::string zip_location; 719 std::string oat_filename; 720 std::string oat_symbols; 721 std::string oat_location; 722 int oat_fd = -1; 723 std::string bitcode_filename; 724 const char* image_classes_zip_filename = NULL; 725 const char* image_classes_filename = NULL; 726 std::string image_filename; 727 std::string boot_image_filename; 728 uintptr_t image_base = 0; 729 std::string android_root; 730 std::vector<const char*> runtime_args; 731 int thread_count = sysconf(_SC_NPROCESSORS_CONF); 732 Compiler::Kind compiler_kind = kUsePortableCompiler 733 ? Compiler::kPortable 734 : Compiler::kQuick; 735 const char* compiler_filter_string = NULL; 736 int huge_method_threshold = CompilerOptions::kDefaultHugeMethodThreshold; 737 int large_method_threshold = CompilerOptions::kDefaultLargeMethodThreshold; 738 int small_method_threshold = CompilerOptions::kDefaultSmallMethodThreshold; 739 int tiny_method_threshold = CompilerOptions::kDefaultTinyMethodThreshold; 740 int num_dex_methods_threshold = CompilerOptions::kDefaultNumDexMethodsThreshold; 741 742 // Take the default set of instruction features from the build. 743 InstructionSetFeatures instruction_set_features = 744 ParseFeatureList(Runtime::GetDefaultInstructionSetFeatures()); 745 746#if defined(__arm__) 747 InstructionSet instruction_set = kThumb2; 748#elif defined(__aarch64__) 749 InstructionSet instruction_set = kArm64; 750#elif defined(__i386__) 751 InstructionSet instruction_set = kX86; 752#elif defined(__x86_64__) 753 InstructionSet instruction_set = kX86_64; 754#elif defined(__mips__) 755 InstructionSet instruction_set = kMips; 756#else 757 InstructionSet instruction_set = kNone; 758#endif 759 760 // Profile file to use 761 std::string profile_file; 762 763 bool is_host = false; 764 bool dump_stats = false; 765 bool dump_timing = false; 766 bool dump_passes = false; 767 bool dump_slow_timing = kIsDebugBuild; 768 bool watch_dog_enabled = !kIsTargetBuild; 769 bool generate_gdb_information = kIsDebugBuild; 770 771 for (int i = 0; i < argc; i++) { 772 const StringPiece option(argv[i]); 773 bool log_options = false; 774 if (log_options) { 775 LOG(INFO) << "dex2oat: option[" << i << "]=" << argv[i]; 776 } 777 if (option.starts_with("--dex-file=")) { 778 dex_filenames.push_back(option.substr(strlen("--dex-file=")).data()); 779 } else if (option.starts_with("--dex-location=")) { 780 dex_locations.push_back(option.substr(strlen("--dex-location=")).data()); 781 } else if (option.starts_with("--zip-fd=")) { 782 const char* zip_fd_str = option.substr(strlen("--zip-fd=")).data(); 783 if (!ParseInt(zip_fd_str, &zip_fd)) { 784 Usage("Failed to parse --zip-fd argument '%s' as an integer", zip_fd_str); 785 } 786 if (zip_fd < 0) { 787 Usage("--zip-fd passed a negative value %d", zip_fd); 788 } 789 } else if (option.starts_with("--zip-location=")) { 790 zip_location = option.substr(strlen("--zip-location=")).data(); 791 } else if (option.starts_with("--oat-file=")) { 792 oat_filename = option.substr(strlen("--oat-file=")).data(); 793 } else if (option.starts_with("--oat-symbols=")) { 794 oat_symbols = option.substr(strlen("--oat-symbols=")).data(); 795 } else if (option.starts_with("--oat-fd=")) { 796 const char* oat_fd_str = option.substr(strlen("--oat-fd=")).data(); 797 if (!ParseInt(oat_fd_str, &oat_fd)) { 798 Usage("Failed to parse --oat-fd argument '%s' as an integer", oat_fd_str); 799 } 800 if (oat_fd < 0) { 801 Usage("--oat-fd passed a negative value %d", oat_fd); 802 } 803 } else if (option == "--watch-dog") { 804 watch_dog_enabled = true; 805 } else if (option == "--no-watch-dog") { 806 watch_dog_enabled = false; 807 } else if (option == "--gen-gdb-info") { 808 generate_gdb_information = true; 809 } else if (option == "--no-gen-gdb-info") { 810 generate_gdb_information = false; 811 } else if (option.starts_with("-j")) { 812 const char* thread_count_str = option.substr(strlen("-j")).data(); 813 if (!ParseInt(thread_count_str, &thread_count)) { 814 Usage("Failed to parse -j argument '%s' as an integer", thread_count_str); 815 } 816 } else if (option.starts_with("--oat-location=")) { 817 oat_location = option.substr(strlen("--oat-location=")).data(); 818 } else if (option.starts_with("--bitcode=")) { 819 bitcode_filename = option.substr(strlen("--bitcode=")).data(); 820 } else if (option.starts_with("--image=")) { 821 image_filename = option.substr(strlen("--image=")).data(); 822 } else if (option.starts_with("--image-classes=")) { 823 image_classes_filename = option.substr(strlen("--image-classes=")).data(); 824 } else if (option.starts_with("--image-classes-zip=")) { 825 image_classes_zip_filename = option.substr(strlen("--image-classes-zip=")).data(); 826 } else if (option.starts_with("--base=")) { 827 const char* image_base_str = option.substr(strlen("--base=")).data(); 828 char* end; 829 image_base = strtoul(image_base_str, &end, 16); 830 if (end == image_base_str || *end != '\0') { 831 Usage("Failed to parse hexadecimal value for option %s", option.data()); 832 } 833 } else if (option.starts_with("--boot-image=")) { 834 boot_image_filename = option.substr(strlen("--boot-image=")).data(); 835 } else if (option.starts_with("--android-root=")) { 836 android_root = option.substr(strlen("--android-root=")).data(); 837 } else if (option.starts_with("--instruction-set=")) { 838 StringPiece instruction_set_str = option.substr(strlen("--instruction-set=")).data(); 839 if (instruction_set_str == "arm") { 840 instruction_set = kThumb2; 841 } else if (instruction_set_str == "arm64") { 842 instruction_set = kArm64; 843 } else if (instruction_set_str == "mips") { 844 instruction_set = kMips; 845 } else if (instruction_set_str == "x86") { 846 instruction_set = kX86; 847 } else if (instruction_set_str == "x86_64") { 848 instruction_set = kX86_64; 849 } 850 } else if (option.starts_with("--instruction-set-features=")) { 851 StringPiece str = option.substr(strlen("--instruction-set-features=")).data(); 852 instruction_set_features = ParseFeatureList(str.as_string()); 853 } else if (option.starts_with("--compiler-backend=")) { 854 StringPiece backend_str = option.substr(strlen("--compiler-backend=")).data(); 855 if (backend_str == "Quick") { 856 compiler_kind = Compiler::kQuick; 857 } else if (backend_str == "Optimizing") { 858 compiler_kind = Compiler::kOptimizing; 859 } else if (backend_str == "Portable") { 860 compiler_kind = Compiler::kPortable; 861 } 862 } else if (option.starts_with("--compiler-filter=")) { 863 compiler_filter_string = option.substr(strlen("--compiler-filter=")).data(); 864 } else if (option.starts_with("--huge-method-max=")) { 865 const char* threshold = option.substr(strlen("--huge-method-max=")).data(); 866 if (!ParseInt(threshold, &huge_method_threshold)) { 867 Usage("Failed to parse --huge-method-max '%s' as an integer", threshold); 868 } 869 if (huge_method_threshold < 0) { 870 Usage("--huge-method-max passed a negative value %s", huge_method_threshold); 871 } 872 } else if (option.starts_with("--large-method-max=")) { 873 const char* threshold = option.substr(strlen("--large-method-max=")).data(); 874 if (!ParseInt(threshold, &large_method_threshold)) { 875 Usage("Failed to parse --large-method-max '%s' as an integer", threshold); 876 } 877 if (large_method_threshold < 0) { 878 Usage("--large-method-max passed a negative value %s", large_method_threshold); 879 } 880 } else if (option.starts_with("--small-method-max=")) { 881 const char* threshold = option.substr(strlen("--small-method-max=")).data(); 882 if (!ParseInt(threshold, &small_method_threshold)) { 883 Usage("Failed to parse --small-method-max '%s' as an integer", threshold); 884 } 885 if (small_method_threshold < 0) { 886 Usage("--small-method-max passed a negative value %s", small_method_threshold); 887 } 888 } else if (option.starts_with("--tiny-method-max=")) { 889 const char* threshold = option.substr(strlen("--tiny-method-max=")).data(); 890 if (!ParseInt(threshold, &tiny_method_threshold)) { 891 Usage("Failed to parse --tiny-method-max '%s' as an integer", threshold); 892 } 893 if (tiny_method_threshold < 0) { 894 Usage("--tiny-method-max passed a negative value %s", tiny_method_threshold); 895 } 896 } else if (option.starts_with("--num-dex-methods=")) { 897 const char* threshold = option.substr(strlen("--num-dex-methods=")).data(); 898 if (!ParseInt(threshold, &num_dex_methods_threshold)) { 899 Usage("Failed to parse --num-dex-methods '%s' as an integer", threshold); 900 } 901 if (num_dex_methods_threshold < 0) { 902 Usage("--num-dex-methods passed a negative value %s", num_dex_methods_threshold); 903 } 904 } else if (option == "--host") { 905 is_host = true; 906 } else if (option == "--runtime-arg") { 907 if (++i >= argc) { 908 Usage("Missing required argument for --runtime-arg"); 909 } 910 if (log_options) { 911 LOG(INFO) << "dex2oat: option[" << i << "]=" << argv[i]; 912 } 913 runtime_args.push_back(argv[i]); 914 } else if (option == "--dump-timing") { 915 dump_timing = true; 916 } else if (option == "--dump-passes") { 917 dump_passes = true; 918 } else if (option == "--dump-stats") { 919 dump_stats = true; 920 } else if (option.starts_with("--profile-file=")) { 921 profile_file = option.substr(strlen("--profile-file=")).data(); 922 VLOG(compiler) << "dex2oat: profile file is " << profile_file; 923 } else if (option == "--no-profile-file") { 924 LOG(INFO) << "dex2oat: no profile file supplied (explictly)"; 925 // No profile 926 } else if (option == "--print-pass-names") { 927 PassDriver::PrintPassNames(); 928 } else if (option.starts_with("--disable-passes=")) { 929 std::string disable_passes = option.substr(strlen("--disable-passes=")).data(); 930 PassDriver::CreateDefaultPassList(disable_passes); 931 } else { 932 Usage("Unknown argument %s", option.data()); 933 } 934 } 935 936 if (oat_filename.empty() && oat_fd == -1) { 937 Usage("Output must be supplied with either --oat-file or --oat-fd"); 938 } 939 940 if (!oat_filename.empty() && oat_fd != -1) { 941 Usage("--oat-file should not be used with --oat-fd"); 942 } 943 944 if (!oat_symbols.empty() && oat_fd != -1) { 945 Usage("--oat-symbols should not be used with --oat-fd"); 946 } 947 948 if (!oat_symbols.empty() && is_host) { 949 Usage("--oat-symbols should not be used with --host"); 950 } 951 952 if (oat_fd != -1 && !image_filename.empty()) { 953 Usage("--oat-fd should not be used with --image"); 954 } 955 956 if (android_root.empty()) { 957 const char* android_root_env_var = getenv("ANDROID_ROOT"); 958 if (android_root_env_var == NULL) { 959 Usage("--android-root unspecified and ANDROID_ROOT not set"); 960 } 961 android_root += android_root_env_var; 962 } 963 964 bool image = (!image_filename.empty()); 965 if (!image && boot_image_filename.empty()) { 966 boot_image_filename += GetAndroidRoot(); 967 boot_image_filename += "/framework/boot.art"; 968 } 969 std::string boot_image_option; 970 if (!boot_image_filename.empty()) { 971 boot_image_option += "-Ximage:"; 972 boot_image_option += boot_image_filename; 973 } 974 975 if (image_classes_filename != NULL && !image) { 976 Usage("--image-classes should only be used with --image"); 977 } 978 979 if (image_classes_filename != NULL && !boot_image_option.empty()) { 980 Usage("--image-classes should not be used with --boot-image"); 981 } 982 983 if (image_classes_zip_filename != NULL && image_classes_filename == NULL) { 984 Usage("--image-classes-zip should be used with --image-classes"); 985 } 986 987 if (dex_filenames.empty() && zip_fd == -1) { 988 Usage("Input must be supplied with either --dex-file or --zip-fd"); 989 } 990 991 if (!dex_filenames.empty() && zip_fd != -1) { 992 Usage("--dex-file should not be used with --zip-fd"); 993 } 994 995 if (!dex_filenames.empty() && !zip_location.empty()) { 996 Usage("--dex-file should not be used with --zip-location"); 997 } 998 999 if (dex_locations.empty()) { 1000 for (size_t i = 0; i < dex_filenames.size(); i++) { 1001 dex_locations.push_back(dex_filenames[i]); 1002 } 1003 } else if (dex_locations.size() != dex_filenames.size()) { 1004 Usage("--dex-location arguments do not match --dex-file arguments"); 1005 } 1006 1007 if (zip_fd != -1 && zip_location.empty()) { 1008 Usage("--zip-location should be supplied with --zip-fd"); 1009 } 1010 1011 if (boot_image_option.empty()) { 1012 if (image_base == 0) { 1013 Usage("Non-zero --base not specified"); 1014 } 1015 } 1016 1017 std::string oat_stripped(oat_filename); 1018 std::string oat_unstripped; 1019 if (!oat_symbols.empty()) { 1020 oat_unstripped += oat_symbols; 1021 } else { 1022 oat_unstripped += oat_filename; 1023 } 1024 1025 if (compiler_filter_string == NULL) { 1026 if (instruction_set == kX86_64 || instruction_set == kArm64) { 1027 // TODO: currently x86-64 and arm64 are only interpreted. 1028 compiler_filter_string = "interpret-only"; 1029 } else if (image) { 1030 compiler_filter_string = "speed"; 1031 } else { 1032#if ART_SMALL_MODE 1033 compiler_filter_string = "interpret-only"; 1034#else 1035 compiler_filter_string = "speed"; 1036#endif 1037 } 1038 } 1039 CHECK(compiler_filter_string != nullptr); 1040 CompilerOptions::CompilerFilter compiler_filter = CompilerOptions::kDefaultCompilerFilter; 1041 if (strcmp(compiler_filter_string, "verify-none") == 0) { 1042 compiler_filter = CompilerOptions::kVerifyNone; 1043 } else if (strcmp(compiler_filter_string, "interpret-only") == 0) { 1044 compiler_filter = CompilerOptions::kInterpretOnly; 1045 } else if (strcmp(compiler_filter_string, "space") == 0) { 1046 compiler_filter = CompilerOptions::kSpace; 1047 } else if (strcmp(compiler_filter_string, "balanced") == 0) { 1048 compiler_filter = CompilerOptions::kBalanced; 1049 } else if (strcmp(compiler_filter_string, "speed") == 0) { 1050 compiler_filter = CompilerOptions::kSpeed; 1051 } else if (strcmp(compiler_filter_string, "everything") == 0) { 1052 compiler_filter = CompilerOptions::kEverything; 1053 } else { 1054 Usage("Unknown --compiler-filter value %s", compiler_filter_string); 1055 } 1056 1057 CompilerOptions compiler_options(compiler_filter, 1058 huge_method_threshold, 1059 large_method_threshold, 1060 small_method_threshold, 1061 tiny_method_threshold, 1062 num_dex_methods_threshold, 1063 generate_gdb_information 1064#ifdef ART_SEA_IR_MODE 1065 , compiler_options.sea_ir_ = true; 1066#endif 1067 ); // NOLINT(whitespace/parens) 1068 1069 // Done with usage checks, enable watchdog if requested 1070 WatchDog watch_dog(watch_dog_enabled); 1071 1072 // Check early that the result of compilation can be written 1073 UniquePtr<File> oat_file; 1074 bool create_file = !oat_unstripped.empty(); // as opposed to using open file descriptor 1075 if (create_file) { 1076 oat_file.reset(OS::CreateEmptyFile(oat_unstripped.c_str())); 1077 if (oat_location.empty()) { 1078 oat_location = oat_filename; 1079 } 1080 } else { 1081 oat_file.reset(new File(oat_fd, oat_location)); 1082 oat_file->DisableAutoClose(); 1083 } 1084 if (oat_file.get() == NULL) { 1085 PLOG(ERROR) << "Failed to create oat file: " << oat_location; 1086 return EXIT_FAILURE; 1087 } 1088 if (create_file && fchmod(oat_file->Fd(), 0644) != 0) { 1089 PLOG(ERROR) << "Failed to make oat file world readable: " << oat_location; 1090 return EXIT_FAILURE; 1091 } 1092 1093 timings.StartSplit("dex2oat Setup"); 1094 LOG(INFO) << "dex2oat: " << CommandLine(); 1095 1096 Runtime::Options runtime_options; 1097 std::vector<const DexFile*> boot_class_path; 1098 if (boot_image_option.empty()) { 1099 size_t failure_count = OpenDexFiles(dex_filenames, dex_locations, boot_class_path); 1100 if (failure_count > 0) { 1101 LOG(ERROR) << "Failed to open some dex files: " << failure_count; 1102 return EXIT_FAILURE; 1103 } 1104 runtime_options.push_back(std::make_pair("bootclasspath", &boot_class_path)); 1105 } else { 1106 runtime_options.push_back(std::make_pair(boot_image_option.c_str(), 1107 reinterpret_cast<void*>(NULL))); 1108 } 1109 for (size_t i = 0; i < runtime_args.size(); i++) { 1110 runtime_options.push_back(std::make_pair(runtime_args[i], reinterpret_cast<void*>(NULL))); 1111 } 1112 1113 VerificationResults verification_results(&compiler_options); 1114 DexFileToMethodInlinerMap method_inliner_map; 1115 CompilerCallbacksImpl callbacks(&verification_results, &method_inliner_map); 1116 runtime_options.push_back(std::make_pair("compilercallbacks", &callbacks)); 1117 1118 Dex2Oat* p_dex2oat; 1119 if (!Dex2Oat::Create(&p_dex2oat, 1120 runtime_options, 1121 compiler_options, 1122 compiler_kind, 1123 instruction_set, 1124 instruction_set_features, 1125 &verification_results, 1126 &method_inliner_map, 1127 thread_count)) { 1128 LOG(ERROR) << "Failed to create dex2oat"; 1129 return EXIT_FAILURE; 1130 } 1131 UniquePtr<Dex2Oat> dex2oat(p_dex2oat); 1132 // Runtime::Create acquired the mutator_lock_ that is normally given away when we Runtime::Start, 1133 // give it away now so that we don't starve GC. 1134 Thread* self = Thread::Current(); 1135 self->TransitionFromRunnableToSuspended(kNative); 1136 // If we're doing the image, override the compiler filter to force full compilation. Must be 1137 // done ahead of WellKnownClasses::Init that causes verification. Note: doesn't force 1138 // compilation of class initializers. 1139 // Whilst we're in native take the opportunity to initialize well known classes. 1140 WellKnownClasses::Init(self->GetJniEnv()); 1141 1142 // If --image-classes was specified, calculate the full list of classes to include in the image 1143 UniquePtr<CompilerDriver::DescriptorSet> image_classes(NULL); 1144 if (image_classes_filename != NULL) { 1145 std::string error_msg; 1146 if (image_classes_zip_filename != NULL) { 1147 image_classes.reset(dex2oat->ReadImageClassesFromZip(image_classes_zip_filename, 1148 image_classes_filename, 1149 &error_msg)); 1150 } else { 1151 image_classes.reset(dex2oat->ReadImageClassesFromFile(image_classes_filename)); 1152 } 1153 if (image_classes.get() == NULL) { 1154 LOG(ERROR) << "Failed to create list of image classes from '" << image_classes_filename << 1155 "': " << error_msg; 1156 return EXIT_FAILURE; 1157 } 1158 } 1159 1160 std::vector<const DexFile*> dex_files; 1161 if (boot_image_option.empty()) { 1162 dex_files = Runtime::Current()->GetClassLinker()->GetBootClassPath(); 1163 } else { 1164 if (dex_filenames.empty()) { 1165 ATRACE_BEGIN("Opening zip archive from file descriptor"); 1166 std::string error_msg; 1167 UniquePtr<ZipArchive> zip_archive(ZipArchive::OpenFromFd(zip_fd, zip_location.c_str(), 1168 &error_msg)); 1169 if (zip_archive.get() == NULL) { 1170 LOG(ERROR) << "Failed to open zip from file descriptor for '" << zip_location << "': " 1171 << error_msg; 1172 return EXIT_FAILURE; 1173 } 1174 const DexFile* dex_file = DexFile::Open(*zip_archive.get(), zip_location, &error_msg); 1175 if (dex_file == NULL) { 1176 LOG(ERROR) << "Failed to open dex from file descriptor for zip file '" << zip_location 1177 << "': " << error_msg; 1178 return EXIT_FAILURE; 1179 } 1180 dex_files.push_back(dex_file); 1181 ATRACE_END(); 1182 } else { 1183 size_t failure_count = OpenDexFiles(dex_filenames, dex_locations, dex_files); 1184 if (failure_count > 0) { 1185 LOG(ERROR) << "Failed to open some dex files: " << failure_count; 1186 return EXIT_FAILURE; 1187 } 1188 } 1189 1190 const bool kSaveDexInput = false; 1191 if (kSaveDexInput) { 1192 for (size_t i = 0; i < dex_files.size(); ++i) { 1193 const DexFile* dex_file = dex_files[i]; 1194 std::string tmp_file_name(StringPrintf("/data/local/tmp/dex2oat.%d.%zd.dex", getpid(), i)); 1195 UniquePtr<File> tmp_file(OS::CreateEmptyFile(tmp_file_name.c_str())); 1196 if (tmp_file.get() == nullptr) { 1197 PLOG(ERROR) << "Failed to open file " << tmp_file_name 1198 << ". Try: adb shell chmod 777 /data/local/tmp"; 1199 continue; 1200 } 1201 tmp_file->WriteFully(dex_file->Begin(), dex_file->Size()); 1202 LOG(INFO) << "Wrote input to " << tmp_file_name; 1203 } 1204 } 1205 } 1206 // Ensure opened dex files are writable for dex-to-dex transformations. 1207 for (const auto& dex_file : dex_files) { 1208 if (!dex_file->EnableWrite()) { 1209 PLOG(ERROR) << "Failed to make .dex file writeable '" << dex_file->GetLocation() << "'\n"; 1210 } 1211 } 1212 1213 /* 1214 * If we're not in interpret-only or verify-none mode, go ahead and compile small applications. 1215 * Don't bother to check if we're doing the image. 1216 */ 1217 if (!image && compiler_options.IsCompilationEnabled()) { 1218 size_t num_methods = 0; 1219 for (size_t i = 0; i != dex_files.size(); ++i) { 1220 const DexFile* dex_file = dex_files[i]; 1221 CHECK(dex_file != NULL); 1222 num_methods += dex_file->NumMethodIds(); 1223 } 1224 if (num_methods <= compiler_options.GetNumDexMethodsThreshold()) { 1225 compiler_options.SetCompilerFilter(CompilerOptions::kSpeed); 1226 VLOG(compiler) << "Below method threshold, compiling anyways"; 1227 } 1228 } 1229 1230 UniquePtr<const CompilerDriver> compiler(dex2oat->CreateOatFile(boot_image_option, 1231 android_root, 1232 is_host, 1233 dex_files, 1234 oat_file.get(), 1235 bitcode_filename, 1236 image, 1237 image_classes, 1238 dump_stats, 1239 dump_passes, 1240 timings, 1241 compiler_phases_timings, 1242 profile_file)); 1243 1244 if (compiler.get() == NULL) { 1245 LOG(ERROR) << "Failed to create oat file: " << oat_location; 1246 return EXIT_FAILURE; 1247 } 1248 1249 VLOG(compiler) << "Oat file written successfully (unstripped): " << oat_location; 1250 1251 // Notes on the interleaving of creating the image and oat file to 1252 // ensure the references between the two are correct. 1253 // 1254 // Currently we have a memory layout that looks something like this: 1255 // 1256 // +--------------+ 1257 // | image | 1258 // +--------------+ 1259 // | boot oat | 1260 // +--------------+ 1261 // | alloc spaces | 1262 // +--------------+ 1263 // 1264 // There are several constraints on the loading of the image and boot.oat. 1265 // 1266 // 1. The image is expected to be loaded at an absolute address and 1267 // contains Objects with absolute pointers within the image. 1268 // 1269 // 2. There are absolute pointers from Methods in the image to their 1270 // code in the oat. 1271 // 1272 // 3. There are absolute pointers from the code in the oat to Methods 1273 // in the image. 1274 // 1275 // 4. There are absolute pointers from code in the oat to other code 1276 // in the oat. 1277 // 1278 // To get this all correct, we go through several steps. 1279 // 1280 // 1. We have already created that oat file above with 1281 // CreateOatFile. Originally this was just our own proprietary file 1282 // but now it is contained within an ELF dynamic object (aka an .so 1283 // file). The Compiler returned by CreateOatFile provides 1284 // PatchInformation for references to oat code and Methods that need 1285 // to be update once we know where the oat file will be located 1286 // after the image. 1287 // 1288 // 2. We create the image file. It needs to know where the oat file 1289 // will be loaded after itself. Originally when oat file was simply 1290 // memory mapped so we could predict where its contents were based 1291 // on the file size. Now that it is an ELF file, we need to inspect 1292 // the ELF file to understand the in memory segment layout including 1293 // where the oat header is located within. ImageWriter's 1294 // PatchOatCodeAndMethods uses the PatchInformation from the 1295 // Compiler to touch up absolute references in the oat file. 1296 // 1297 // 3. We fixup the ELF program headers so that dlopen will try to 1298 // load the .so at the desired location at runtime by offsetting the 1299 // Elf32_Phdr.p_vaddr values by the desired base address. 1300 // 1301 if (image) { 1302 timings.NewSplit("dex2oat ImageWriter"); 1303 bool image_creation_success = dex2oat->CreateImageFile(image_filename, 1304 image_base, 1305 oat_unstripped, 1306 oat_location, 1307 *compiler.get()); 1308 if (!image_creation_success) { 1309 return EXIT_FAILURE; 1310 } 1311 VLOG(compiler) << "Image written successfully: " << image_filename; 1312 } 1313 1314 if (is_host) { 1315 if (dump_timing || (dump_slow_timing && timings.GetTotalNs() > MsToNs(1000))) { 1316 LOG(INFO) << Dumpable<TimingLogger>(timings); 1317 } 1318 if (dump_passes) { 1319 LOG(INFO) << Dumpable<CumulativeLogger>(*compiler.get()->GetTimingsLogger()); 1320 } 1321 return EXIT_SUCCESS; 1322 } 1323 1324 // If we don't want to strip in place, copy from unstripped location to stripped location. 1325 // We need to strip after image creation because FixupElf needs to use .strtab. 1326 if (oat_unstripped != oat_stripped) { 1327 timings.NewSplit("dex2oat OatFile copy"); 1328 oat_file.reset(); 1329 UniquePtr<File> in(OS::OpenFileForReading(oat_unstripped.c_str())); 1330 UniquePtr<File> out(OS::CreateEmptyFile(oat_stripped.c_str())); 1331 size_t buffer_size = 8192; 1332 UniquePtr<uint8_t> buffer(new uint8_t[buffer_size]); 1333 while (true) { 1334 int bytes_read = TEMP_FAILURE_RETRY(read(in->Fd(), buffer.get(), buffer_size)); 1335 if (bytes_read <= 0) { 1336 break; 1337 } 1338 bool write_ok = out->WriteFully(buffer.get(), bytes_read); 1339 CHECK(write_ok); 1340 } 1341 oat_file.reset(out.release()); 1342 VLOG(compiler) << "Oat file copied successfully (stripped): " << oat_stripped; 1343 } 1344 1345#if ART_USE_PORTABLE_COMPILER // We currently only generate symbols on Portable 1346 timings.NewSplit("dex2oat ElfStripper"); 1347 // Strip unneeded sections for target 1348 off_t seek_actual = lseek(oat_file->Fd(), 0, SEEK_SET); 1349 CHECK_EQ(0, seek_actual); 1350 std::string error_msg; 1351 CHECK(ElfStripper::Strip(oat_file.get(), &error_msg)) << error_msg; 1352 1353 1354 // We wrote the oat file successfully, and want to keep it. 1355 VLOG(compiler) << "Oat file written successfully (stripped): " << oat_location; 1356#endif // ART_USE_PORTABLE_COMPILER 1357 1358 timings.EndSplit(); 1359 1360 if (dump_timing || (dump_slow_timing && timings.GetTotalNs() > MsToNs(1000))) { 1361 LOG(INFO) << Dumpable<TimingLogger>(timings); 1362 } 1363 if (dump_passes) { 1364 LOG(INFO) << Dumpable<CumulativeLogger>(compiler_phases_timings); 1365 } 1366 1367 // Everything was successfully written, do an explicit exit here to avoid running Runtime 1368 // destructors that take time (bug 10645725) unless we're a debug build or running on valgrind. 1369 if (!kIsDebugBuild && (RUNNING_ON_VALGRIND == 0)) { 1370 dex2oat->LogCompletionTime(); 1371 exit(EXIT_SUCCESS); 1372 } 1373 1374 return EXIT_SUCCESS; 1375} // NOLINT(readability/fn_size) 1376} // namespace art 1377 1378int main(int argc, char** argv) { 1379 return art::dex2oat(argc, argv); 1380} 1381