dex2oat.cc revision 3029df6d212894647ba0e5c23443c40912c6ecc8
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 <malloc.h> // For mallinfo 25#include <sstream> 26#include <string> 27#include <vector> 28 29#if defined(__linux__) && defined(__arm__) 30#include <sys/personality.h> 31#include <sys/utsname.h> 32#endif 33 34#include "base/stl_util.h" 35#include "base/stringpiece.h" 36#include "base/timing_logger.h" 37#include "base/unix_file/fd_file.h" 38#include "class_linker.h" 39#include "compiler.h" 40#include "compiler_callbacks.h" 41#include "dex_file-inl.h" 42#include "dex/pass_driver_me_opts.h" 43#include "dex/verification_results.h" 44#include "dex/quick_compiler_callbacks.h" 45#include "dex/quick/dex_file_to_method_inliner_map.h" 46#include "driver/compiler_driver.h" 47#include "driver/compiler_options.h" 48#include "elf_fixup.h" 49#include "elf_patcher.h" 50#include "elf_stripper.h" 51#include "gc/space/image_space.h" 52#include "gc/space/space-inl.h" 53#include "image_writer.h" 54#include "leb128.h" 55#include "mirror/art_method-inl.h" 56#include "mirror/class-inl.h" 57#include "mirror/class_loader.h" 58#include "mirror/object-inl.h" 59#include "mirror/object_array-inl.h" 60#include "oat_writer.h" 61#include "os.h" 62#include "runtime.h" 63#include "ScopedLocalRef.h" 64#include "scoped_thread_state_change.h" 65#include "utils.h" 66#include "vector_output_stream.h" 67#include "well_known_classes.h" 68#include "zip_archive.h" 69 70namespace art { 71 72static int original_argc; 73static char** original_argv; 74 75static std::string CommandLine() { 76 std::vector<std::string> command; 77 for (int i = 0; i < original_argc; ++i) { 78 command.push_back(original_argv[i]); 79 } 80 return Join(command, ' '); 81} 82 83static void UsageErrorV(const char* fmt, va_list ap) { 84 std::string error; 85 StringAppendV(&error, fmt, ap); 86 LOG(ERROR) << error; 87} 88 89static void UsageError(const char* fmt, ...) { 90 va_list ap; 91 va_start(ap, fmt); 92 UsageErrorV(fmt, ap); 93 va_end(ap); 94} 95 96static void Usage(const char* fmt, ...) { 97 va_list ap; 98 va_start(ap, fmt); 99 UsageErrorV(fmt, ap); 100 va_end(ap); 101 102 UsageError("Command: %s", CommandLine().c_str()); 103 104 UsageError("Usage: dex2oat [options]..."); 105 UsageError(""); 106 UsageError(" --dex-file=<dex-file>: specifies a .dex file to compile."); 107 UsageError(" Example: --dex-file=/system/framework/core.jar"); 108 UsageError(""); 109 UsageError(" --zip-fd=<file-descriptor>: specifies a file descriptor of a zip file"); 110 UsageError(" containing a classes.dex file to compile."); 111 UsageError(" Example: --zip-fd=5"); 112 UsageError(""); 113 UsageError(" --zip-location=<zip-location>: specifies a symbolic name for the file"); 114 UsageError(" corresponding to the file descriptor specified by --zip-fd."); 115 UsageError(" Example: --zip-location=/system/app/Calculator.apk"); 116 UsageError(""); 117 UsageError(" --oat-file=<file.oat>: specifies the oat output destination via a filename."); 118 UsageError(" Example: --oat-file=/system/framework/boot.oat"); 119 UsageError(""); 120 UsageError(" --oat-fd=<number>: specifies the oat output destination via a file descriptor."); 121 UsageError(" Example: --oat-fd=6"); 122 UsageError(""); 123 UsageError(" --oat-location=<oat-name>: specifies a symbolic name for the file corresponding"); 124 UsageError(" to the file descriptor specified by --oat-fd."); 125 UsageError(" Example: --oat-location=/data/dalvik-cache/system@app@Calculator.apk.oat"); 126 UsageError(""); 127 UsageError(" --oat-symbols=<file.oat>: specifies the oat output destination with full symbols."); 128 UsageError(" Example: --oat-symbols=/symbols/system/framework/boot.oat"); 129 UsageError(""); 130 UsageError(" --bitcode=<file.bc>: specifies the optional bitcode filename."); 131 UsageError(" Example: --bitcode=/system/framework/boot.bc"); 132 UsageError(""); 133 UsageError(" --image=<file.art>: specifies the output image filename."); 134 UsageError(" Example: --image=/system/framework/boot.art"); 135 UsageError(""); 136 UsageError(" --image-classes=<classname-file>: specifies classes to include in an image."); 137 UsageError(" Example: --image=frameworks/base/preloaded-classes"); 138 UsageError(""); 139 UsageError(" --base=<hex-address>: specifies the base address when creating a boot image."); 140 UsageError(" Example: --base=0x50000000"); 141 UsageError(""); 142 UsageError(" --boot-image=<file.art>: provide the image file for the boot class path."); 143 UsageError(" Example: --boot-image=/system/framework/boot.art"); 144 UsageError(" Default: $ANDROID_ROOT/system/framework/boot.art"); 145 UsageError(""); 146 UsageError(" --android-root=<path>: used to locate libraries for portable linking."); 147 UsageError(" Example: --android-root=out/host/linux-x86"); 148 UsageError(" Default: $ANDROID_ROOT"); 149 UsageError(""); 150 UsageError(" --instruction-set=(arm|arm64|mips|x86|x86_64): compile for a particular"); 151 UsageError(" instruction set."); 152 UsageError(" Example: --instruction-set=x86"); 153 UsageError(" Default: arm"); 154 UsageError(""); 155 UsageError(" --instruction-set-features=...,: Specify instruction set features"); 156 UsageError(" Example: --instruction-set-features=div"); 157 UsageError(" Default: default"); 158 UsageError(""); 159 UsageError(" --compile-pic: Force indirect use of code, methods, and classes"); 160 UsageError(" Default: disabled"); 161 UsageError(""); 162 UsageError(" --compiler-backend=(Quick|Optimizing|Portable): select compiler backend"); 163 UsageError(" set."); 164 UsageError(" Example: --compiler-backend=Portable"); 165 UsageError(" Default: Quick"); 166 UsageError(""); 167 UsageError(" --compiler-filter=(verify-none|interpret-only|space|balanced|speed|everything):"); 168 UsageError(" select compiler filter."); 169 UsageError(" Example: --compiler-filter=everything"); 170#if ART_SMALL_MODE 171 UsageError(" Default: interpret-only"); 172#else 173 UsageError(" Default: speed"); 174#endif 175 UsageError(""); 176 UsageError(" --huge-method-max=<method-instruction-count>: the threshold size for a huge"); 177 UsageError(" method for compiler filter tuning."); 178 UsageError(" Example: --huge-method-max=%d", CompilerOptions::kDefaultHugeMethodThreshold); 179 UsageError(" Default: %d", CompilerOptions::kDefaultHugeMethodThreshold); 180 UsageError(""); 181 UsageError(" --huge-method-max=<method-instruction-count>: threshold size for a huge"); 182 UsageError(" method for compiler filter tuning."); 183 UsageError(" Example: --huge-method-max=%d", CompilerOptions::kDefaultHugeMethodThreshold); 184 UsageError(" Default: %d", CompilerOptions::kDefaultHugeMethodThreshold); 185 UsageError(""); 186 UsageError(" --large-method-max=<method-instruction-count>: threshold size for a large"); 187 UsageError(" method for compiler filter tuning."); 188 UsageError(" Example: --large-method-max=%d", CompilerOptions::kDefaultLargeMethodThreshold); 189 UsageError(" Default: %d", CompilerOptions::kDefaultLargeMethodThreshold); 190 UsageError(""); 191 UsageError(" --small-method-max=<method-instruction-count>: threshold size for a small"); 192 UsageError(" method for compiler filter tuning."); 193 UsageError(" Example: --small-method-max=%d", CompilerOptions::kDefaultSmallMethodThreshold); 194 UsageError(" Default: %d", CompilerOptions::kDefaultSmallMethodThreshold); 195 UsageError(""); 196 UsageError(" --tiny-method-max=<method-instruction-count>: threshold size for a tiny"); 197 UsageError(" method for compiler filter tuning."); 198 UsageError(" Example: --tiny-method-max=%d", CompilerOptions::kDefaultTinyMethodThreshold); 199 UsageError(" Default: %d", CompilerOptions::kDefaultTinyMethodThreshold); 200 UsageError(""); 201 UsageError(" --num-dex-methods=<method-count>: threshold size for a small dex file for"); 202 UsageError(" compiler filter tuning. If the input has fewer than this many methods"); 203 UsageError(" and the filter is not interpret-only or verify-none, overrides the"); 204 UsageError(" filter to use speed"); 205 UsageError(" Example: --num-dex-method=%d", CompilerOptions::kDefaultNumDexMethodsThreshold); 206 UsageError(" Default: %d", CompilerOptions::kDefaultNumDexMethodsThreshold); 207 UsageError(""); 208 UsageError(" --host: used with Portable backend to link against host runtime libraries"); 209 UsageError(""); 210 UsageError(" --dump-timing: display a breakdown of where time was spent"); 211 UsageError(""); 212 UsageError(" --include-patch-information: Include patching information so the generated code"); 213 UsageError(" can have its base address moved without full recompilation."); 214 UsageError(""); 215 UsageError(" --no-include-patch-information: Do not include patching information."); 216 UsageError(""); 217 UsageError(" --include-debug-symbols: Include ELF symbols in this oat file"); 218 UsageError(""); 219 UsageError(" --no-include-debug-symbols: Do not include ELF symbols in this oat file"); 220 UsageError(""); 221 UsageError(" --runtime-arg <argument>: used to specify various arguments for the runtime,"); 222 UsageError(" such as initial heap size, maximum heap size, and verbose output."); 223 UsageError(" Use a separate --runtime-arg switch for each argument."); 224 UsageError(" Example: --runtime-arg -Xms256m"); 225 UsageError(""); 226 UsageError(" --profile-file=<filename>: specify profiler output file to use for compilation."); 227 UsageError(""); 228 UsageError(" --print-pass-names: print a list of pass names"); 229 UsageError(""); 230 UsageError(" --disable-passes=<pass-names>: disable one or more passes separated by comma."); 231 UsageError(" Example: --disable-passes=UseCount,BBOptimizations"); 232 UsageError(""); 233 std::cerr << "See log for usage error information\n"; 234 exit(EXIT_FAILURE); 235} 236 237class Dex2Oat { 238 public: 239 static bool Create(Dex2Oat** p_dex2oat, 240 const RuntimeOptions& runtime_options, 241 const CompilerOptions& compiler_options, 242 Compiler::Kind compiler_kind, 243 InstructionSet instruction_set, 244 InstructionSetFeatures instruction_set_features, 245 VerificationResults* verification_results, 246 DexFileToMethodInlinerMap* method_inliner_map, 247 size_t thread_count) 248 SHARED_TRYLOCK_FUNCTION(true, Locks::mutator_lock_) { 249 CHECK(verification_results != nullptr); 250 CHECK(method_inliner_map != nullptr); 251 std::unique_ptr<Dex2Oat> dex2oat(new Dex2Oat(&compiler_options, 252 compiler_kind, 253 instruction_set, 254 instruction_set_features, 255 verification_results, 256 method_inliner_map, 257 thread_count)); 258 if (!dex2oat->CreateRuntime(runtime_options, instruction_set)) { 259 *p_dex2oat = nullptr; 260 return false; 261 } 262 *p_dex2oat = dex2oat.release(); 263 return true; 264 } 265 266 ~Dex2Oat() { 267 delete runtime_; 268 } 269 270 void LogCompletionTime(const CompilerDriver* compiler) { 271 std::ostringstream mallinfostr; 272#ifdef HAVE_MALLOC_H 273 struct mallinfo info = mallinfo(); 274 const size_t allocated_space = static_cast<size_t>(info.uordblks); 275 const size_t free_space = static_cast<size_t>(info.fordblks); 276 mallinfostr << " native alloc=" << PrettySize(allocated_space) << " free=" 277 << PrettySize(free_space); 278#endif 279 const ArenaPool* arena_pool = compiler->GetArenaPool(); 280 gc::Heap* heap = Runtime::Current()->GetHeap(); 281 LOG(INFO) << "dex2oat took " << PrettyDuration(NanoTime() - start_ns_) 282 << " (threads: " << thread_count_ << ")" 283 << " arena alloc=" << PrettySize(arena_pool->GetBytesAllocated()) 284 << " java alloc=" << PrettySize(heap->GetBytesAllocated()) << mallinfostr.str(); 285 } 286 287 288 // Reads the class names (java.lang.Object) and returns a set of descriptors (Ljava/lang/Object;) 289 std::set<std::string>* ReadImageClassesFromFile(const char* image_classes_filename) { 290 std::unique_ptr<std::ifstream> image_classes_file(new std::ifstream(image_classes_filename, 291 std::ifstream::in)); 292 if (image_classes_file.get() == nullptr) { 293 LOG(ERROR) << "Failed to open image classes file " << image_classes_filename; 294 return nullptr; 295 } 296 std::unique_ptr<std::set<std::string>> result(ReadImageClasses(*image_classes_file)); 297 image_classes_file->close(); 298 return result.release(); 299 } 300 301 std::set<std::string>* ReadImageClasses(std::istream& image_classes_stream) { 302 std::unique_ptr<std::set<std::string>> image_classes(new std::set<std::string>); 303 while (image_classes_stream.good()) { 304 std::string dot; 305 std::getline(image_classes_stream, dot); 306 if (StartsWith(dot, "#") || dot.empty()) { 307 continue; 308 } 309 std::string descriptor(DotToDescriptor(dot.c_str())); 310 image_classes->insert(descriptor); 311 } 312 return image_classes.release(); 313 } 314 315 // Reads the class names (java.lang.Object) and returns a set of descriptors (Ljava/lang/Object;) 316 std::set<std::string>* ReadImageClassesFromZip(const char* zip_filename, 317 const char* image_classes_filename, 318 std::string* error_msg) { 319 std::unique_ptr<ZipArchive> zip_archive(ZipArchive::Open(zip_filename, error_msg)); 320 if (zip_archive.get() == nullptr) { 321 return nullptr; 322 } 323 std::unique_ptr<ZipEntry> zip_entry(zip_archive->Find(image_classes_filename, error_msg)); 324 if (zip_entry.get() == nullptr) { 325 *error_msg = StringPrintf("Failed to find '%s' within '%s': %s", image_classes_filename, 326 zip_filename, error_msg->c_str()); 327 return nullptr; 328 } 329 std::unique_ptr<MemMap> image_classes_file(zip_entry->ExtractToMemMap(zip_filename, 330 image_classes_filename, 331 error_msg)); 332 if (image_classes_file.get() == nullptr) { 333 *error_msg = StringPrintf("Failed to extract '%s' from '%s': %s", image_classes_filename, 334 zip_filename, error_msg->c_str()); 335 return nullptr; 336 } 337 const std::string image_classes_string(reinterpret_cast<char*>(image_classes_file->Begin()), 338 image_classes_file->Size()); 339 std::istringstream image_classes_stream(image_classes_string); 340 return ReadImageClasses(image_classes_stream); 341 } 342 343 bool PatchOatCode(const CompilerDriver* compiler_driver, File* oat_file, 344 const std::string& oat_location, std::string* error_msg) { 345 // We asked to include patch information but we are not making an image. We need to fix 346 // everything up manually. 347 std::unique_ptr<ElfFile> elf_file(ElfFile::Open(oat_file, PROT_READ|PROT_WRITE, 348 MAP_SHARED, error_msg)); 349 if (elf_file.get() == NULL) { 350 LOG(ERROR) << error_msg; 351 return false; 352 } 353 { 354 ReaderMutexLock mu(Thread::Current(), *Locks::mutator_lock_); 355 return ElfPatcher::Patch(compiler_driver, elf_file.get(), oat_location, error_msg); 356 } 357 } 358 359 const CompilerDriver* CreateOatFile(const std::string& boot_image_option, 360 const std::string& android_root, 361 bool is_host, 362 const std::vector<const DexFile*>& dex_files, 363 File* oat_file, 364 const std::string& oat_location, 365 const std::string& bitcode_filename, 366 bool image, 367 std::unique_ptr<std::set<std::string>>& image_classes, 368 std::unique_ptr<std::set<std::string>>& compiled_classes, 369 bool dump_stats, 370 bool dump_passes, 371 TimingLogger& timings, 372 CumulativeLogger& compiler_phases_timings, 373 std::string profile_file, 374 SafeMap<std::string, std::string>* key_value_store) { 375 CHECK(key_value_store != nullptr); 376 377 // Handle and ClassLoader creation needs to come after Runtime::Create 378 jobject class_loader = nullptr; 379 Thread* self = Thread::Current(); 380 if (!boot_image_option.empty()) { 381 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 382 std::vector<const DexFile*> class_path_files(dex_files); 383 OpenClassPathFiles(runtime_->GetClassPathString(), class_path_files); 384 ScopedObjectAccess soa(self); 385 for (size_t i = 0; i < class_path_files.size(); i++) { 386 class_linker->RegisterDexFile(*class_path_files[i]); 387 } 388 soa.Env()->AllocObject(WellKnownClasses::dalvik_system_PathClassLoader); 389 ScopedLocalRef<jobject> class_loader_local(soa.Env(), 390 soa.Env()->AllocObject(WellKnownClasses::dalvik_system_PathClassLoader)); 391 class_loader = soa.Env()->NewGlobalRef(class_loader_local.get()); 392 Runtime::Current()->SetCompileTimeClassPath(class_loader, class_path_files); 393 } 394 395 std::unique_ptr<CompilerDriver> driver(new CompilerDriver(compiler_options_, 396 verification_results_, 397 method_inliner_map_, 398 compiler_kind_, 399 instruction_set_, 400 instruction_set_features_, 401 image, 402 image_classes.release(), 403 compiled_classes.release(), 404 thread_count_, 405 dump_stats, 406 dump_passes, 407 &compiler_phases_timings, 408 profile_file)); 409 410 driver->GetCompiler()->SetBitcodeFileName(*driver.get(), bitcode_filename); 411 412 driver->CompileAll(class_loader, dex_files, &timings); 413 414 TimingLogger::ScopedTiming t2("dex2oat OatWriter", &timings); 415 std::string image_file_location; 416 uint32_t image_file_location_oat_checksum = 0; 417 uintptr_t image_file_location_oat_data_begin = 0; 418 int32_t image_patch_delta = 0; 419 if (!driver->IsImage()) { 420 TimingLogger::ScopedTiming t3("Loading image checksum", &timings); 421 gc::space::ImageSpace* image_space = Runtime::Current()->GetHeap()->GetImageSpace(); 422 image_file_location_oat_checksum = image_space->GetImageHeader().GetOatChecksum(); 423 image_file_location_oat_data_begin = 424 reinterpret_cast<uintptr_t>(image_space->GetImageHeader().GetOatDataBegin()); 425 image_file_location = image_space->GetImageFilename(); 426 image_patch_delta = image_space->GetImageHeader().GetPatchDelta(); 427 } 428 429 if (!image_file_location.empty()) { 430 key_value_store->Put(OatHeader::kImageLocationKey, image_file_location); 431 } 432 433 OatWriter oat_writer(dex_files, image_file_location_oat_checksum, 434 image_file_location_oat_data_begin, 435 image_patch_delta, 436 driver.get(), 437 &timings, 438 key_value_store); 439 440 t2.NewTiming("Writing ELF"); 441 if (!driver->WriteElf(android_root, is_host, dex_files, &oat_writer, oat_file)) { 442 LOG(ERROR) << "Failed to write ELF file " << oat_file->GetPath(); 443 return nullptr; 444 } 445 446 // Flush result to disk. Patching code will re-open the file (mmap), so ensure that our view 447 // of the file already made it there and won't be re-ordered with writes from PatchOat or 448 // image patching. 449 if (oat_file->Flush() != 0) { 450 PLOG(ERROR) << "Failed flushing oat file " << oat_file->GetPath(); 451 oat_file->Erase(); 452 return nullptr; 453 } 454 455 if (!driver->IsImage() && driver->GetCompilerOptions().GetIncludePatchInformation()) { 456 t2.NewTiming("Patching ELF"); 457 std::string error_msg; 458 if (!PatchOatCode(driver.get(), oat_file, oat_location, &error_msg)) { 459 LOG(ERROR) << "Failed to fixup ELF file " << oat_file->GetPath() << ": " << error_msg; 460 return nullptr; 461 } 462 } 463 464 return driver.release(); 465 } 466 467 bool CreateImageFile(const std::string& image_filename, 468 uintptr_t image_base, 469 const std::string& oat_filename, 470 const std::string& oat_location, 471 const CompilerDriver& compiler) 472 LOCKS_EXCLUDED(Locks::mutator_lock_) { 473 uintptr_t oat_data_begin; 474 { 475 // ImageWriter is scoped so it can free memory before doing FixupElf 476 ImageWriter image_writer(compiler); 477 if (!image_writer.Write(image_filename, image_base, oat_filename, oat_location, 478 compiler_options_->GetCompilePic())) { 479 LOG(ERROR) << "Failed to create image file " << image_filename; 480 return false; 481 } 482 oat_data_begin = image_writer.GetOatDataBegin(); 483 } 484 485 486 // Do not fix up the ELF file if we are --compile-pic 487 if (!compiler_options_->GetCompilePic()) { 488 std::unique_ptr<File> oat_file(OS::OpenFileReadWrite(oat_filename.c_str())); 489 if (oat_file.get() == nullptr) { 490 PLOG(ERROR) << "Failed to open ELF file: " << oat_filename; 491 return false; 492 } 493 494 if (!ElfFixup::Fixup(oat_file.get(), oat_data_begin)) { 495 LOG(ERROR) << "Failed to fixup ELF file " << oat_file->GetPath(); 496 oat_file->Erase(); 497 return false; 498 } 499 500 if (oat_file->FlushCloseOrErase() != 0) { 501 PLOG(ERROR) << "Failed to flush and close patched oat file " << oat_filename; 502 return false; 503 } 504 } 505 506 return true; 507 } 508 509 private: 510 explicit Dex2Oat(const CompilerOptions* compiler_options, 511 Compiler::Kind compiler_kind, 512 InstructionSet instruction_set, 513 InstructionSetFeatures instruction_set_features, 514 VerificationResults* verification_results, 515 DexFileToMethodInlinerMap* method_inliner_map, 516 size_t thread_count) 517 : compiler_options_(compiler_options), 518 compiler_kind_(compiler_kind), 519 instruction_set_(instruction_set), 520 instruction_set_features_(instruction_set_features), 521 verification_results_(verification_results), 522 method_inliner_map_(method_inliner_map), 523 runtime_(nullptr), 524 thread_count_(thread_count), 525 start_ns_(NanoTime()) { 526 CHECK(compiler_options != nullptr); 527 CHECK(verification_results != nullptr); 528 CHECK(method_inliner_map != nullptr); 529 } 530 531 bool CreateRuntime(const RuntimeOptions& runtime_options, InstructionSet instruction_set) 532 SHARED_TRYLOCK_FUNCTION(true, Locks::mutator_lock_) { 533 if (!Runtime::Create(runtime_options, false)) { 534 LOG(ERROR) << "Failed to create runtime"; 535 return false; 536 } 537 Runtime* runtime = Runtime::Current(); 538 runtime->SetInstructionSet(instruction_set); 539 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) { 540 Runtime::CalleeSaveType type = Runtime::CalleeSaveType(i); 541 if (!runtime->HasCalleeSaveMethod(type)) { 542 runtime->SetCalleeSaveMethod(runtime->CreateCalleeSaveMethod(type), type); 543 } 544 } 545 runtime->GetClassLinker()->FixupDexCaches(runtime->GetResolutionMethod()); 546 runtime->GetClassLinker()->RunRootClinits(); 547 runtime_ = runtime; 548 return true; 549 } 550 551 // Appends to dex_files any elements of class_path that it doesn't already 552 // contain. This will open those dex files as necessary. 553 static void OpenClassPathFiles(const std::string& class_path, 554 std::vector<const DexFile*>& dex_files) { 555 std::vector<std::string> parsed; 556 Split(class_path, ':', parsed); 557 // Take Locks::mutator_lock_ so that lock ordering on the ClassLinker::dex_lock_ is maintained. 558 ScopedObjectAccess soa(Thread::Current()); 559 for (size_t i = 0; i < parsed.size(); ++i) { 560 if (DexFilesContains(dex_files, parsed[i])) { 561 continue; 562 } 563 std::string error_msg; 564 if (!DexFile::Open(parsed[i].c_str(), parsed[i].c_str(), &error_msg, &dex_files)) { 565 LOG(WARNING) << "Failed to open dex file '" << parsed[i] << "': " << error_msg; 566 } 567 } 568 } 569 570 // Returns true if dex_files has a dex with the named location. 571 static bool DexFilesContains(const std::vector<const DexFile*>& dex_files, 572 const std::string& location) { 573 for (size_t i = 0; i < dex_files.size(); ++i) { 574 if (dex_files[i]->GetLocation() == location) { 575 return true; 576 } 577 } 578 return false; 579 } 580 581 const CompilerOptions* const compiler_options_; 582 const Compiler::Kind compiler_kind_; 583 584 const InstructionSet instruction_set_; 585 const InstructionSetFeatures instruction_set_features_; 586 587 VerificationResults* const verification_results_; 588 DexFileToMethodInlinerMap* const method_inliner_map_; 589 Runtime* runtime_; 590 size_t thread_count_; 591 uint64_t start_ns_; 592 593 DISALLOW_IMPLICIT_CONSTRUCTORS(Dex2Oat); 594}; 595 596static size_t OpenDexFiles(const std::vector<const char*>& dex_filenames, 597 const std::vector<const char*>& dex_locations, 598 std::vector<const DexFile*>& dex_files) { 599 size_t failure_count = 0; 600 for (size_t i = 0; i < dex_filenames.size(); i++) { 601 const char* dex_filename = dex_filenames[i]; 602 const char* dex_location = dex_locations[i]; 603 ATRACE_BEGIN(StringPrintf("Opening dex file '%s'", dex_filenames[i]).c_str()); 604 std::string error_msg; 605 if (!OS::FileExists(dex_filename)) { 606 LOG(WARNING) << "Skipping non-existent dex file '" << dex_filename << "'"; 607 continue; 608 } 609 if (!DexFile::Open(dex_filename, dex_location, &error_msg, &dex_files)) { 610 LOG(WARNING) << "Failed to open .dex from file '" << dex_filename << "': " << error_msg; 611 ++failure_count; 612 } 613 ATRACE_END(); 614 } 615 return failure_count; 616} 617 618// The primary goal of the watchdog is to prevent stuck build servers 619// during development when fatal aborts lead to a cascade of failures 620// that result in a deadlock. 621class WatchDog { 622// WatchDog defines its own CHECK_PTHREAD_CALL to avoid using Log which uses locks 623#undef CHECK_PTHREAD_CALL 624#define CHECK_WATCH_DOG_PTHREAD_CALL(call, args, what) \ 625 do { \ 626 int rc = call args; \ 627 if (rc != 0) { \ 628 errno = rc; \ 629 std::string message(# call); \ 630 message += " failed for "; \ 631 message += reason; \ 632 Fatal(message); \ 633 } \ 634 } while (false) 635 636 public: 637 explicit WatchDog(bool is_watch_dog_enabled) { 638 is_watch_dog_enabled_ = is_watch_dog_enabled; 639 if (!is_watch_dog_enabled_) { 640 return; 641 } 642 shutting_down_ = false; 643 const char* reason = "dex2oat watch dog thread startup"; 644 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_init, (&mutex_, nullptr), reason); 645 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_cond_init, (&cond_, nullptr), reason); 646 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_attr_init, (&attr_), reason); 647 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_create, (&pthread_, &attr_, &CallBack, this), reason); 648 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_attr_destroy, (&attr_), reason); 649 } 650 ~WatchDog() { 651 if (!is_watch_dog_enabled_) { 652 return; 653 } 654 const char* reason = "dex2oat watch dog thread shutdown"; 655 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_lock, (&mutex_), reason); 656 shutting_down_ = true; 657 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_cond_signal, (&cond_), reason); 658 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_unlock, (&mutex_), reason); 659 660 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_join, (pthread_, nullptr), reason); 661 662 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_cond_destroy, (&cond_), reason); 663 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_destroy, (&mutex_), reason); 664 } 665 666 private: 667 static void* CallBack(void* arg) { 668 WatchDog* self = reinterpret_cast<WatchDog*>(arg); 669 ::art::SetThreadName("dex2oat watch dog"); 670 self->Wait(); 671 return nullptr; 672 } 673 674 static void Message(char severity, const std::string& message) { 675 // TODO: Remove when we switch to LOG when we can guarantee it won't prevent shutdown in error 676 // cases. 677 fprintf(stderr, "dex2oat%s %c %d %d %s\n", 678 kIsDebugBuild ? "d" : "", 679 severity, 680 getpid(), 681 GetTid(), 682 message.c_str()); 683 } 684 685 static void Warn(const std::string& message) { 686 Message('W', message); 687 } 688 689 static void Fatal(const std::string& message) { 690 Message('F', message); 691 exit(1); 692 } 693 694 void Wait() { 695 bool warning = true; 696 CHECK_GT(kWatchDogTimeoutSeconds, kWatchDogWarningSeconds); 697 // TODO: tune the multiplier for GC verification, the following is just to make the timeout 698 // large. 699 int64_t multiplier = kVerifyObjectSupport > kVerifyObjectModeFast ? 100 : 1; 700 timespec warning_ts; 701 InitTimeSpec(true, CLOCK_REALTIME, multiplier * kWatchDogWarningSeconds * 1000, 0, &warning_ts); 702 timespec timeout_ts; 703 InitTimeSpec(true, CLOCK_REALTIME, multiplier * kWatchDogTimeoutSeconds * 1000, 0, &timeout_ts); 704 const char* reason = "dex2oat watch dog thread waiting"; 705 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_lock, (&mutex_), reason); 706 while (!shutting_down_) { 707 int rc = TEMP_FAILURE_RETRY(pthread_cond_timedwait(&cond_, &mutex_, 708 warning ? &warning_ts 709 : &timeout_ts)); 710 if (rc == ETIMEDOUT) { 711 std::string message(StringPrintf("dex2oat did not finish after %d seconds", 712 warning ? kWatchDogWarningSeconds 713 : kWatchDogTimeoutSeconds)); 714 if (warning) { 715 Warn(message.c_str()); 716 warning = false; 717 } else { 718 Fatal(message.c_str()); 719 } 720 } else if (rc != 0) { 721 std::string message(StringPrintf("pthread_cond_timedwait failed: %s", 722 strerror(errno))); 723 Fatal(message.c_str()); 724 } 725 } 726 CHECK_WATCH_DOG_PTHREAD_CALL(pthread_mutex_unlock, (&mutex_), reason); 727 } 728 729 // When setting timeouts, keep in mind that the build server may not be as fast as your desktop. 730 // Debug builds are slower so they have larger timeouts. 731 static const unsigned int kSlowdownFactor = kIsDebugBuild ? 5U : 1U; 732#if ART_USE_PORTABLE_COMPILER 733 // 2 minutes scaled by kSlowdownFactor. 734 static const unsigned int kWatchDogWarningSeconds = kSlowdownFactor * 2 * 60; 735 // 30 minutes scaled by kSlowdownFactor. 736 static const unsigned int kWatchDogTimeoutSeconds = kSlowdownFactor * 30 * 60; 737#else 738 // 1 minutes scaled by kSlowdownFactor. 739 static const unsigned int kWatchDogWarningSeconds = kSlowdownFactor * 1 * 60; 740 // 6 minutes scaled by kSlowdownFactor. 741 static const unsigned int kWatchDogTimeoutSeconds = kSlowdownFactor * 6 * 60; 742#endif 743 744 bool is_watch_dog_enabled_; 745 bool shutting_down_; 746 // TODO: Switch to Mutex when we can guarantee it won't prevent shutdown in error cases. 747 pthread_mutex_t mutex_; 748 pthread_cond_t cond_; 749 pthread_attr_t attr_; 750 pthread_t pthread_; 751}; 752const unsigned int WatchDog::kWatchDogWarningSeconds; 753const unsigned int WatchDog::kWatchDogTimeoutSeconds; 754 755// Given a set of instruction features from the build, parse it. The 756// input 'str' is a comma separated list of feature names. Parse it and 757// return the InstructionSetFeatures object. 758static InstructionSetFeatures ParseFeatureList(std::string str) { 759 InstructionSetFeatures result; 760 typedef std::vector<std::string> FeatureList; 761 FeatureList features; 762 Split(str, ',', features); 763 for (FeatureList::iterator i = features.begin(); i != features.end(); i++) { 764 std::string feature = Trim(*i); 765 if (feature == "default") { 766 // Nothing to do. 767 } else if (feature == "div") { 768 // Supports divide instruction. 769 result.SetHasDivideInstruction(true); 770 } else if (feature == "nodiv") { 771 // Turn off support for divide instruction. 772 result.SetHasDivideInstruction(false); 773 } else if (feature == "lpae") { 774 // Supports Large Physical Address Extension. 775 result.SetHasLpae(true); 776 } else if (feature == "nolpae") { 777 // Turn off support for Large Physical Address Extension. 778 result.SetHasLpae(false); 779 } else { 780 Usage("Unknown instruction set feature: '%s'", feature.c_str()); 781 } 782 } 783 // others... 784 return result; 785} 786 787void ParseStringAfterChar(const std::string& s, char c, std::string* parsed_value) { 788 std::string::size_type colon = s.find(c); 789 if (colon == std::string::npos) { 790 Usage("Missing char %c in option %s\n", c, s.c_str()); 791 } 792 // Add one to remove the char we were trimming until. 793 *parsed_value = s.substr(colon + 1); 794} 795 796void ParseDouble(const std::string& option, char after_char, 797 double min, double max, double* parsed_value) { 798 std::string substring; 799 ParseStringAfterChar(option, after_char, &substring); 800 bool sane_val = true; 801 double value; 802 if (false) { 803 // TODO: this doesn't seem to work on the emulator. b/15114595 804 std::stringstream iss(substring); 805 iss >> value; 806 // Ensure that we have a value, there was no cruft after it and it satisfies a sensible range. 807 sane_val = iss.eof() && (value >= min) && (value <= max); 808 } else { 809 char* end = nullptr; 810 value = strtod(substring.c_str(), &end); 811 sane_val = *end == '\0' && value >= min && value <= max; 812 } 813 if (!sane_val) { 814 Usage("Invalid double value %s for option %s\n", substring.c_str(), option.c_str()); 815 } 816 *parsed_value = value; 817} 818 819static void b13564922() { 820#if defined(__linux__) && defined(__arm__) 821 int major, minor; 822 struct utsname uts; 823 if (uname(&uts) != -1 && 824 sscanf(uts.release, "%d.%d", &major, &minor) == 2 && 825 ((major < 3) || ((major == 3) && (minor < 4)))) { 826 // Kernels before 3.4 don't handle the ASLR well and we can run out of address 827 // space (http://b/13564922). Work around the issue by inhibiting further mmap() randomization. 828 int old_personality = personality(0xffffffff); 829 if ((old_personality & ADDR_NO_RANDOMIZE) == 0) { 830 int new_personality = personality(old_personality | ADDR_NO_RANDOMIZE); 831 if (new_personality == -1) { 832 LOG(WARNING) << "personality(. | ADDR_NO_RANDOMIZE) failed."; 833 } 834 } 835 } 836#endif 837} 838 839static int dex2oat(int argc, char** argv) { 840 b13564922(); 841 842 original_argc = argc; 843 original_argv = argv; 844 845 TimingLogger timings("compiler", false, false); 846 CumulativeLogger compiler_phases_timings("compilation times"); 847 848 InitLogging(argv); 849 850 // Skip over argv[0]. 851 argv++; 852 argc--; 853 854 if (argc == 0) { 855 Usage("No arguments specified"); 856 } 857 858 std::vector<const char*> dex_filenames; 859 std::vector<const char*> dex_locations; 860 int zip_fd = -1; 861 std::string zip_location; 862 std::string oat_filename; 863 std::string oat_symbols; 864 std::string oat_location; 865 int oat_fd = -1; 866 std::string bitcode_filename; 867 const char* image_classes_zip_filename = nullptr; 868 const char* image_classes_filename = nullptr; 869 const char* compiled_classes_zip_filename = nullptr; 870 const char* compiled_classes_filename = nullptr; 871 std::string image_filename; 872 std::string boot_image_filename; 873 uintptr_t image_base = 0; 874 std::string android_root; 875 std::vector<const char*> runtime_args; 876 int thread_count = sysconf(_SC_NPROCESSORS_CONF); 877 Compiler::Kind compiler_kind = kUsePortableCompiler 878 ? Compiler::kPortable 879 : Compiler::kQuick; 880 const char* compiler_filter_string = nullptr; 881 bool compile_pic = false; 882 int huge_method_threshold = CompilerOptions::kDefaultHugeMethodThreshold; 883 int large_method_threshold = CompilerOptions::kDefaultLargeMethodThreshold; 884 int small_method_threshold = CompilerOptions::kDefaultSmallMethodThreshold; 885 int tiny_method_threshold = CompilerOptions::kDefaultTinyMethodThreshold; 886 int num_dex_methods_threshold = CompilerOptions::kDefaultNumDexMethodsThreshold; 887 888 // Take the default set of instruction features from the build. 889 InstructionSetFeatures instruction_set_features = 890 ParseFeatureList(Runtime::GetDefaultInstructionSetFeatures()); 891 892 InstructionSet instruction_set = kRuntimeISA; 893 894 // Profile file to use 895 std::string profile_file; 896 double top_k_profile_threshold = CompilerOptions::kDefaultTopKProfileThreshold; 897 898 bool is_host = false; 899 bool dump_stats = false; 900 bool dump_timing = false; 901 bool dump_passes = false; 902 bool include_patch_information = CompilerOptions::kDefaultIncludePatchInformation; 903 bool include_debug_symbols = kIsDebugBuild; 904 bool dump_slow_timing = kIsDebugBuild; 905 bool watch_dog_enabled = true; 906 bool generate_gdb_information = kIsDebugBuild; 907 908 // Checks are all explicit until we know the architecture. 909 bool implicit_null_checks = false; 910 bool implicit_so_checks = false; 911 bool implicit_suspend_checks = false; 912 913 for (int i = 0; i < argc; i++) { 914 const StringPiece option(argv[i]); 915 const bool log_options = false; 916 if (log_options) { 917 LOG(INFO) << "dex2oat: option[" << i << "]=" << argv[i]; 918 } 919 if (option.starts_with("--dex-file=")) { 920 dex_filenames.push_back(option.substr(strlen("--dex-file=")).data()); 921 } else if (option.starts_with("--dex-location=")) { 922 dex_locations.push_back(option.substr(strlen("--dex-location=")).data()); 923 } else if (option.starts_with("--zip-fd=")) { 924 const char* zip_fd_str = option.substr(strlen("--zip-fd=")).data(); 925 if (!ParseInt(zip_fd_str, &zip_fd)) { 926 Usage("Failed to parse --zip-fd argument '%s' as an integer", zip_fd_str); 927 } 928 if (zip_fd < 0) { 929 Usage("--zip-fd passed a negative value %d", zip_fd); 930 } 931 } else if (option.starts_with("--zip-location=")) { 932 zip_location = option.substr(strlen("--zip-location=")).data(); 933 } else if (option.starts_with("--oat-file=")) { 934 oat_filename = option.substr(strlen("--oat-file=")).data(); 935 } else if (option.starts_with("--oat-symbols=")) { 936 oat_symbols = option.substr(strlen("--oat-symbols=")).data(); 937 } else if (option.starts_with("--oat-fd=")) { 938 const char* oat_fd_str = option.substr(strlen("--oat-fd=")).data(); 939 if (!ParseInt(oat_fd_str, &oat_fd)) { 940 Usage("Failed to parse --oat-fd argument '%s' as an integer", oat_fd_str); 941 } 942 if (oat_fd < 0) { 943 Usage("--oat-fd passed a negative value %d", oat_fd); 944 } 945 } else if (option == "--watch-dog") { 946 watch_dog_enabled = true; 947 } else if (option == "--no-watch-dog") { 948 watch_dog_enabled = false; 949 } else if (option == "--gen-gdb-info") { 950 generate_gdb_information = true; 951 // Debug symbols are needed for gdb information. 952 include_debug_symbols = true; 953 } else if (option == "--no-gen-gdb-info") { 954 generate_gdb_information = false; 955 } else if (option.starts_with("-j")) { 956 const char* thread_count_str = option.substr(strlen("-j")).data(); 957 if (!ParseInt(thread_count_str, &thread_count)) { 958 Usage("Failed to parse -j argument '%s' as an integer", thread_count_str); 959 } 960 } else if (option.starts_with("--oat-location=")) { 961 oat_location = option.substr(strlen("--oat-location=")).data(); 962 } else if (option.starts_with("--bitcode=")) { 963 bitcode_filename = option.substr(strlen("--bitcode=")).data(); 964 } else if (option.starts_with("--image=")) { 965 image_filename = option.substr(strlen("--image=")).data(); 966 } else if (option.starts_with("--image-classes=")) { 967 image_classes_filename = option.substr(strlen("--image-classes=")).data(); 968 } else if (option.starts_with("--image-classes-zip=")) { 969 image_classes_zip_filename = option.substr(strlen("--image-classes-zip=")).data(); 970 } else if (option.starts_with("--compiled-classes=")) { 971 compiled_classes_filename = option.substr(strlen("--compiled-classes=")).data(); 972 } else if (option.starts_with("--compiled-classes-zip=")) { 973 compiled_classes_zip_filename = option.substr(strlen("--compiled-classes-zip=")).data(); 974 } else if (option.starts_with("--base=")) { 975 const char* image_base_str = option.substr(strlen("--base=")).data(); 976 char* end; 977 image_base = strtoul(image_base_str, &end, 16); 978 if (end == image_base_str || *end != '\0') { 979 Usage("Failed to parse hexadecimal value for option %s", option.data()); 980 } 981 } else if (option.starts_with("--boot-image=")) { 982 boot_image_filename = option.substr(strlen("--boot-image=")).data(); 983 } else if (option.starts_with("--android-root=")) { 984 android_root = option.substr(strlen("--android-root=")).data(); 985 } else if (option.starts_with("--instruction-set=")) { 986 StringPiece instruction_set_str = option.substr(strlen("--instruction-set=")).data(); 987 if (instruction_set_str == "arm") { 988 instruction_set = kThumb2; 989 } else if (instruction_set_str == "arm64") { 990 instruction_set = kArm64; 991 } else if (instruction_set_str == "mips") { 992 instruction_set = kMips; 993 } else if (instruction_set_str == "x86") { 994 instruction_set = kX86; 995 } else if (instruction_set_str == "x86_64") { 996 instruction_set = kX86_64; 997 } 998 } else if (option.starts_with("--instruction-set-features=")) { 999 StringPiece str = option.substr(strlen("--instruction-set-features=")).data(); 1000 instruction_set_features = ParseFeatureList(str.as_string()); 1001 } else if (option.starts_with("--compiler-backend=")) { 1002 StringPiece backend_str = option.substr(strlen("--compiler-backend=")).data(); 1003 if (backend_str == "Quick") { 1004 compiler_kind = Compiler::kQuick; 1005 } else if (backend_str == "Optimizing") { 1006 compiler_kind = Compiler::kOptimizing; 1007 } else if (backend_str == "Portable") { 1008 compiler_kind = Compiler::kPortable; 1009 } 1010 } else if (option.starts_with("--compiler-filter=")) { 1011 compiler_filter_string = option.substr(strlen("--compiler-filter=")).data(); 1012 } else if (option == "--compile-pic") { 1013 compile_pic = true; 1014 } else if (option.starts_with("--huge-method-max=")) { 1015 const char* threshold = option.substr(strlen("--huge-method-max=")).data(); 1016 if (!ParseInt(threshold, &huge_method_threshold)) { 1017 Usage("Failed to parse --huge-method-max '%s' as an integer", threshold); 1018 } 1019 if (huge_method_threshold < 0) { 1020 Usage("--huge-method-max passed a negative value %s", huge_method_threshold); 1021 } 1022 } else if (option.starts_with("--large-method-max=")) { 1023 const char* threshold = option.substr(strlen("--large-method-max=")).data(); 1024 if (!ParseInt(threshold, &large_method_threshold)) { 1025 Usage("Failed to parse --large-method-max '%s' as an integer", threshold); 1026 } 1027 if (large_method_threshold < 0) { 1028 Usage("--large-method-max passed a negative value %s", large_method_threshold); 1029 } 1030 } else if (option.starts_with("--small-method-max=")) { 1031 const char* threshold = option.substr(strlen("--small-method-max=")).data(); 1032 if (!ParseInt(threshold, &small_method_threshold)) { 1033 Usage("Failed to parse --small-method-max '%s' as an integer", threshold); 1034 } 1035 if (small_method_threshold < 0) { 1036 Usage("--small-method-max passed a negative value %s", small_method_threshold); 1037 } 1038 } else if (option.starts_with("--tiny-method-max=")) { 1039 const char* threshold = option.substr(strlen("--tiny-method-max=")).data(); 1040 if (!ParseInt(threshold, &tiny_method_threshold)) { 1041 Usage("Failed to parse --tiny-method-max '%s' as an integer", threshold); 1042 } 1043 if (tiny_method_threshold < 0) { 1044 Usage("--tiny-method-max passed a negative value %s", tiny_method_threshold); 1045 } 1046 } else if (option.starts_with("--num-dex-methods=")) { 1047 const char* threshold = option.substr(strlen("--num-dex-methods=")).data(); 1048 if (!ParseInt(threshold, &num_dex_methods_threshold)) { 1049 Usage("Failed to parse --num-dex-methods '%s' as an integer", threshold); 1050 } 1051 if (num_dex_methods_threshold < 0) { 1052 Usage("--num-dex-methods passed a negative value %s", num_dex_methods_threshold); 1053 } 1054 } else if (option == "--host") { 1055 is_host = true; 1056 } else if (option == "--runtime-arg") { 1057 if (++i >= argc) { 1058 Usage("Missing required argument for --runtime-arg"); 1059 } 1060 if (log_options) { 1061 LOG(INFO) << "dex2oat: option[" << i << "]=" << argv[i]; 1062 } 1063 runtime_args.push_back(argv[i]); 1064 } else if (option == "--dump-timing") { 1065 dump_timing = true; 1066 } else if (option == "--dump-passes") { 1067 dump_passes = true; 1068 } else if (option == "--dump-stats") { 1069 dump_stats = true; 1070 } else if (option == "--include-debug-symbols" || option == "--no-strip-symbols") { 1071 include_debug_symbols = true; 1072 } else if (option == "--no-include-debug-symbols" || option == "--strip-symbols") { 1073 include_debug_symbols = false; 1074 generate_gdb_information = false; // Depends on debug symbols, see above. 1075 } else if (option.starts_with("--profile-file=")) { 1076 profile_file = option.substr(strlen("--profile-file=")).data(); 1077 VLOG(compiler) << "dex2oat: profile file is " << profile_file; 1078 } else if (option == "--no-profile-file") { 1079 // No profile 1080 } else if (option.starts_with("--top-k-profile-threshold=")) { 1081 ParseDouble(option.data(), '=', 0.0, 100.0, &top_k_profile_threshold); 1082 } else if (option == "--print-pass-names") { 1083 PassDriverMEOpts::PrintPassNames(); 1084 } else if (option.starts_with("--disable-passes=")) { 1085 std::string disable_passes = option.substr(strlen("--disable-passes=")).data(); 1086 PassDriverMEOpts::CreateDefaultPassList(disable_passes); 1087 } else if (option.starts_with("--print-passes=")) { 1088 std::string print_passes = option.substr(strlen("--print-passes=")).data(); 1089 PassDriverMEOpts::SetPrintPassList(print_passes); 1090 } else if (option == "--print-all-passes") { 1091 PassDriverMEOpts::SetPrintAllPasses(); 1092 } else if (option.starts_with("--dump-cfg-passes=")) { 1093 std::string dump_passes = option.substr(strlen("--dump-cfg-passes=")).data(); 1094 PassDriverMEOpts::SetDumpPassList(dump_passes); 1095 } else if (option == "--include-patch-information") { 1096 include_patch_information = true; 1097 } else if (option == "--no-include-patch-information") { 1098 include_patch_information = false; 1099 } else { 1100 Usage("Unknown argument %s", option.data()); 1101 } 1102 } 1103 1104 if (oat_filename.empty() && oat_fd == -1) { 1105 Usage("Output must be supplied with either --oat-file or --oat-fd"); 1106 } 1107 1108 if (!oat_filename.empty() && oat_fd != -1) { 1109 Usage("--oat-file should not be used with --oat-fd"); 1110 } 1111 1112 if (!oat_symbols.empty() && oat_fd != -1) { 1113 Usage("--oat-symbols should not be used with --oat-fd"); 1114 } 1115 1116 if (!oat_symbols.empty() && is_host) { 1117 Usage("--oat-symbols should not be used with --host"); 1118 } 1119 1120 if (oat_fd != -1 && !image_filename.empty()) { 1121 Usage("--oat-fd should not be used with --image"); 1122 } 1123 1124 if (android_root.empty()) { 1125 const char* android_root_env_var = getenv("ANDROID_ROOT"); 1126 if (android_root_env_var == nullptr) { 1127 Usage("--android-root unspecified and ANDROID_ROOT not set"); 1128 } 1129 android_root += android_root_env_var; 1130 } 1131 1132 bool image = (!image_filename.empty()); 1133 if (!image && boot_image_filename.empty()) { 1134 boot_image_filename += android_root; 1135 boot_image_filename += "/framework/boot.art"; 1136 } 1137 std::string boot_image_option; 1138 if (!boot_image_filename.empty()) { 1139 boot_image_option += "-Ximage:"; 1140 boot_image_option += boot_image_filename; 1141 } 1142 1143 if (image_classes_filename != nullptr && !image) { 1144 Usage("--image-classes should only be used with --image"); 1145 } 1146 1147 if (image_classes_filename != nullptr && !boot_image_option.empty()) { 1148 Usage("--image-classes should not be used with --boot-image"); 1149 } 1150 1151 if (image_classes_zip_filename != nullptr && image_classes_filename == nullptr) { 1152 Usage("--image-classes-zip should be used with --image-classes"); 1153 } 1154 1155 if (compiled_classes_filename != nullptr && !image) { 1156 Usage("--compiled-classes should only be used with --image"); 1157 } 1158 1159 if (compiled_classes_filename != nullptr && !boot_image_option.empty()) { 1160 Usage("--compiled-classes should not be used with --boot-image"); 1161 } 1162 1163 if (compiled_classes_zip_filename != nullptr && compiled_classes_filename == nullptr) { 1164 Usage("--compiled-classes-zip should be used with --compiled-classes"); 1165 } 1166 1167 if (dex_filenames.empty() && zip_fd == -1) { 1168 Usage("Input must be supplied with either --dex-file or --zip-fd"); 1169 } 1170 1171 if (!dex_filenames.empty() && zip_fd != -1) { 1172 Usage("--dex-file should not be used with --zip-fd"); 1173 } 1174 1175 if (!dex_filenames.empty() && !zip_location.empty()) { 1176 Usage("--dex-file should not be used with --zip-location"); 1177 } 1178 1179 if (dex_locations.empty()) { 1180 for (size_t i = 0; i < dex_filenames.size(); i++) { 1181 dex_locations.push_back(dex_filenames[i]); 1182 } 1183 } else if (dex_locations.size() != dex_filenames.size()) { 1184 Usage("--dex-location arguments do not match --dex-file arguments"); 1185 } 1186 1187 if (zip_fd != -1 && zip_location.empty()) { 1188 Usage("--zip-location should be supplied with --zip-fd"); 1189 } 1190 1191 if (boot_image_option.empty()) { 1192 if (image_base == 0) { 1193 Usage("Non-zero --base not specified"); 1194 } 1195 } 1196 1197 std::string oat_stripped(oat_filename); 1198 std::string oat_unstripped; 1199 if (!oat_symbols.empty()) { 1200 oat_unstripped += oat_symbols; 1201 } else { 1202 oat_unstripped += oat_filename; 1203 } 1204 1205 if (compiler_filter_string == nullptr) { 1206 if (instruction_set == kMips64) { 1207 // TODO: fix compiler for Mips64. 1208 compiler_filter_string = "interpret-only"; 1209 } else if (image) { 1210 compiler_filter_string = "speed"; 1211 } else { 1212#if ART_SMALL_MODE 1213 compiler_filter_string = "interpret-only"; 1214#else 1215 compiler_filter_string = "speed"; 1216#endif 1217 } 1218 } 1219 CHECK(compiler_filter_string != nullptr); 1220 CompilerOptions::CompilerFilter compiler_filter = CompilerOptions::kDefaultCompilerFilter; 1221 if (strcmp(compiler_filter_string, "verify-none") == 0) { 1222 compiler_filter = CompilerOptions::kVerifyNone; 1223 } else if (strcmp(compiler_filter_string, "interpret-only") == 0) { 1224 compiler_filter = CompilerOptions::kInterpretOnly; 1225 } else if (strcmp(compiler_filter_string, "space") == 0) { 1226 compiler_filter = CompilerOptions::kSpace; 1227 } else if (strcmp(compiler_filter_string, "balanced") == 0) { 1228 compiler_filter = CompilerOptions::kBalanced; 1229 } else if (strcmp(compiler_filter_string, "speed") == 0) { 1230 compiler_filter = CompilerOptions::kSpeed; 1231 } else if (strcmp(compiler_filter_string, "everything") == 0) { 1232 compiler_filter = CompilerOptions::kEverything; 1233 } else { 1234 Usage("Unknown --compiler-filter value %s", compiler_filter_string); 1235 } 1236 1237 // Set the compilation target's implicit checks options. 1238 switch (instruction_set) { 1239 case kArm: 1240 case kThumb2: 1241 case kArm64: 1242 case kX86: 1243 case kX86_64: 1244 implicit_null_checks = true; 1245 implicit_so_checks = true; 1246 break; 1247 1248 default: 1249 // Defaults are correct. 1250 break; 1251 } 1252 1253 std::unique_ptr<CompilerOptions> compiler_options(new CompilerOptions(compiler_filter, 1254 huge_method_threshold, 1255 large_method_threshold, 1256 small_method_threshold, 1257 tiny_method_threshold, 1258 num_dex_methods_threshold, 1259 generate_gdb_information, 1260 include_patch_information, 1261 top_k_profile_threshold, 1262 include_debug_symbols, 1263 implicit_null_checks, 1264 implicit_so_checks, 1265 implicit_suspend_checks, 1266 compile_pic 1267#ifdef ART_SEA_IR_MODE 1268 , compiler_options.sea_ir_ = 1269 true; 1270#endif 1271 )); // NOLINT(whitespace/parens) 1272 1273 // Done with usage checks, enable watchdog if requested 1274 WatchDog watch_dog(watch_dog_enabled); 1275 1276 // Check early that the result of compilation can be written 1277 std::unique_ptr<File> oat_file; 1278 bool create_file = !oat_unstripped.empty(); // as opposed to using open file descriptor 1279 if (create_file) { 1280 oat_file.reset(OS::CreateEmptyFile(oat_unstripped.c_str())); 1281 if (oat_location.empty()) { 1282 oat_location = oat_filename; 1283 } 1284 } else { 1285 oat_file.reset(new File(oat_fd, oat_location, true)); 1286 oat_file->DisableAutoClose(); 1287 if (oat_file->SetLength(0)) { // Only warn for truncation error. 1288 PLOG(WARNING) << "Truncating oat file " << oat_location << " failed."; 1289 } 1290 } 1291 if (oat_file.get() == nullptr) { 1292 PLOG(ERROR) << "Failed to create oat file: " << oat_location; 1293 return EXIT_FAILURE; 1294 } 1295 if (create_file && fchmod(oat_file->Fd(), 0644) != 0) { 1296 PLOG(ERROR) << "Failed to make oat file world readable: " << oat_location; 1297 return EXIT_FAILURE; 1298 } 1299 1300 timings.StartTiming("dex2oat Setup"); 1301 LOG(INFO) << CommandLine(); 1302 1303 RuntimeOptions runtime_options; 1304 std::vector<const DexFile*> boot_class_path; 1305 art::MemMap::Init(); // For ZipEntry::ExtractToMemMap. 1306 if (boot_image_option.empty()) { 1307 size_t failure_count = OpenDexFiles(dex_filenames, dex_locations, boot_class_path); 1308 if (failure_count > 0) { 1309 LOG(ERROR) << "Failed to open some dex files: " << failure_count; 1310 return EXIT_FAILURE; 1311 } 1312 runtime_options.push_back(std::make_pair("bootclasspath", &boot_class_path)); 1313 } else { 1314 runtime_options.push_back(std::make_pair(boot_image_option.c_str(), nullptr)); 1315 } 1316 for (size_t i = 0; i < runtime_args.size(); i++) { 1317 runtime_options.push_back(std::make_pair(runtime_args[i], nullptr)); 1318 } 1319 1320 std::unique_ptr<VerificationResults> verification_results(new VerificationResults( 1321 compiler_options.get())); 1322 DexFileToMethodInlinerMap method_inliner_map; 1323 QuickCompilerCallbacks callbacks(verification_results.get(), &method_inliner_map); 1324 runtime_options.push_back(std::make_pair("compilercallbacks", &callbacks)); 1325 runtime_options.push_back( 1326 std::make_pair("imageinstructionset", 1327 reinterpret_cast<const void*>(GetInstructionSetString(instruction_set)))); 1328 1329 Dex2Oat* p_dex2oat; 1330 if (!Dex2Oat::Create(&p_dex2oat, 1331 runtime_options, 1332 *compiler_options, 1333 compiler_kind, 1334 instruction_set, 1335 instruction_set_features, 1336 verification_results.get(), 1337 &method_inliner_map, 1338 thread_count)) { 1339 LOG(ERROR) << "Failed to create dex2oat"; 1340 timings.EndTiming(); 1341 return EXIT_FAILURE; 1342 } 1343 std::unique_ptr<Dex2Oat> dex2oat(p_dex2oat); 1344 1345 // Runtime::Create acquired the mutator_lock_ that is normally given away when we Runtime::Start, 1346 // give it away now so that we don't starve GC. 1347 Thread* self = Thread::Current(); 1348 self->TransitionFromRunnableToSuspended(kNative); 1349 // If we're doing the image, override the compiler filter to force full compilation. Must be 1350 // done ahead of WellKnownClasses::Init that causes verification. Note: doesn't force 1351 // compilation of class initializers. 1352 // Whilst we're in native take the opportunity to initialize well known classes. 1353 WellKnownClasses::Init(self->GetJniEnv()); 1354 1355 // If --image-classes was specified, calculate the full list of classes to include in the image 1356 std::unique_ptr<std::set<std::string>> image_classes(nullptr); 1357 if (image_classes_filename != nullptr) { 1358 std::string error_msg; 1359 if (image_classes_zip_filename != nullptr) { 1360 image_classes.reset(dex2oat->ReadImageClassesFromZip(image_classes_zip_filename, 1361 image_classes_filename, 1362 &error_msg)); 1363 } else { 1364 image_classes.reset(dex2oat->ReadImageClassesFromFile(image_classes_filename)); 1365 } 1366 if (image_classes.get() == nullptr) { 1367 LOG(ERROR) << "Failed to create list of image classes from '" << image_classes_filename << 1368 "': " << error_msg; 1369 timings.EndTiming(); 1370 return EXIT_FAILURE; 1371 } 1372 } else if (image) { 1373 image_classes.reset(new std::set<std::string>); 1374 } 1375 // If --compiled-classes was specified, calculate the full list of classes to compile in the 1376 // image. 1377 std::unique_ptr<std::set<std::string>> compiled_classes(nullptr); 1378 if (compiled_classes_filename != nullptr) { 1379 std::string error_msg; 1380 if (compiled_classes_zip_filename != nullptr) { 1381 compiled_classes.reset(dex2oat->ReadImageClassesFromZip(compiled_classes_zip_filename, 1382 compiled_classes_filename, 1383 &error_msg)); 1384 } else { 1385 compiled_classes.reset(dex2oat->ReadImageClassesFromFile(compiled_classes_filename)); 1386 } 1387 if (compiled_classes.get() == nullptr) { 1388 LOG(ERROR) << "Failed to create list of compiled classes from '" << compiled_classes_filename 1389 << "': " << error_msg; 1390 timings.EndTiming(); 1391 return EXIT_FAILURE; 1392 } 1393 } else if (image) { 1394 compiled_classes.reset(nullptr); // By default compile everything. 1395 } 1396 1397 std::vector<const DexFile*> dex_files; 1398 if (boot_image_option.empty()) { 1399 dex_files = Runtime::Current()->GetClassLinker()->GetBootClassPath(); 1400 } else { 1401 if (dex_filenames.empty()) { 1402 ATRACE_BEGIN("Opening zip archive from file descriptor"); 1403 std::string error_msg; 1404 std::unique_ptr<ZipArchive> zip_archive(ZipArchive::OpenFromFd(zip_fd, zip_location.c_str(), 1405 &error_msg)); 1406 if (zip_archive.get() == nullptr) { 1407 LOG(ERROR) << "Failed to open zip from file descriptor for '" << zip_location << "': " 1408 << error_msg; 1409 timings.EndTiming(); 1410 return EXIT_FAILURE; 1411 } 1412 if (!DexFile::OpenFromZip(*zip_archive.get(), zip_location, &error_msg, &dex_files)) { 1413 LOG(ERROR) << "Failed to open dex from file descriptor for zip file '" << zip_location 1414 << "': " << error_msg; 1415 timings.EndTiming(); 1416 return EXIT_FAILURE; 1417 } 1418 ATRACE_END(); 1419 } else { 1420 size_t failure_count = OpenDexFiles(dex_filenames, dex_locations, dex_files); 1421 if (failure_count > 0) { 1422 LOG(ERROR) << "Failed to open some dex files: " << failure_count; 1423 timings.EndTiming(); 1424 return EXIT_FAILURE; 1425 } 1426 } 1427 1428 const bool kSaveDexInput = false; 1429 if (kSaveDexInput) { 1430 for (size_t i = 0; i < dex_files.size(); ++i) { 1431 const DexFile* dex_file = dex_files[i]; 1432 std::string tmp_file_name(StringPrintf("/data/local/tmp/dex2oat.%d.%zd.dex", getpid(), i)); 1433 std::unique_ptr<File> tmp_file(OS::CreateEmptyFile(tmp_file_name.c_str())); 1434 if (tmp_file.get() == nullptr) { 1435 PLOG(ERROR) << "Failed to open file " << tmp_file_name 1436 << ". Try: adb shell chmod 777 /data/local/tmp"; 1437 continue; 1438 } 1439 // This is just dumping files for debugging. Ignore errors, and leave remnants. 1440 UNUSED(tmp_file->WriteFully(dex_file->Begin(), dex_file->Size())); 1441 UNUSED(tmp_file->Flush()); 1442 UNUSED(tmp_file->Close()); 1443 LOG(INFO) << "Wrote input to " << tmp_file_name; 1444 } 1445 } 1446 } 1447 // Ensure opened dex files are writable for dex-to-dex transformations. 1448 for (const auto& dex_file : dex_files) { 1449 if (!dex_file->EnableWrite()) { 1450 PLOG(ERROR) << "Failed to make .dex file writeable '" << dex_file->GetLocation() << "'\n"; 1451 } 1452 } 1453 1454 /* 1455 * If we're not in interpret-only or verify-none mode, go ahead and compile small applications. 1456 * Don't bother to check if we're doing the image. 1457 */ 1458 if (!image && compiler_options->IsCompilationEnabled()) { 1459 size_t num_methods = 0; 1460 for (size_t i = 0; i != dex_files.size(); ++i) { 1461 const DexFile* dex_file = dex_files[i]; 1462 CHECK(dex_file != nullptr); 1463 num_methods += dex_file->NumMethodIds(); 1464 } 1465 if (num_methods <= compiler_options->GetNumDexMethodsThreshold()) { 1466 compiler_options->SetCompilerFilter(CompilerOptions::kSpeed); 1467 VLOG(compiler) << "Below method threshold, compiling anyways"; 1468 } 1469 } 1470 1471 // Fill some values into the key-value store for the oat header. 1472 std::unique_ptr<SafeMap<std::string, std::string> > key_value_store( 1473 new SafeMap<std::string, std::string>()); 1474 1475 // Insert some compiler things. 1476 { 1477 std::ostringstream oss; 1478 for (int i = 0; i < argc; ++i) { 1479 if (i > 0) { 1480 oss << ' '; 1481 } 1482 oss << argv[i]; 1483 } 1484 key_value_store->Put(OatHeader::kDex2OatCmdLineKey, oss.str()); 1485 oss.str(""); // Reset. 1486 oss << kRuntimeISA; 1487 key_value_store->Put(OatHeader::kDex2OatHostKey, oss.str()); 1488 key_value_store->Put(OatHeader::kPicKey, compile_pic ? "true" : "false"); 1489 } 1490 1491 std::unique_ptr<const CompilerDriver> compiler(dex2oat->CreateOatFile(boot_image_option, 1492 android_root, 1493 is_host, 1494 dex_files, 1495 oat_file.get(), 1496 oat_location, 1497 bitcode_filename, 1498 image, 1499 image_classes, 1500 compiled_classes, 1501 dump_stats, 1502 dump_passes, 1503 timings, 1504 compiler_phases_timings, 1505 profile_file, 1506 key_value_store.get())); 1507 if (compiler.get() == nullptr) { 1508 LOG(ERROR) << "Failed to create oat file: " << oat_location; 1509 timings.EndTiming(); 1510 return EXIT_FAILURE; 1511 } 1512 1513 if (!kUsePortableCompiler) { 1514 if (oat_file->FlushCloseOrErase() != 0) { 1515 PLOG(ERROR) << "Failed to flush and close oat file: " << oat_location; 1516 timings.EndTiming(); 1517 return EXIT_FAILURE; 1518 } 1519 oat_file.reset(); 1520 } 1521 1522 VLOG(compiler) << "Oat file written successfully (unstripped): " << oat_location; 1523 // Notes on the interleaving of creating the image and oat file to 1524 // ensure the references between the two are correct. 1525 // 1526 // Currently we have a memory layout that looks something like this: 1527 // 1528 // +--------------+ 1529 // | image | 1530 // +--------------+ 1531 // | boot oat | 1532 // +--------------+ 1533 // | alloc spaces | 1534 // +--------------+ 1535 // 1536 // There are several constraints on the loading of the image and boot.oat. 1537 // 1538 // 1. The image is expected to be loaded at an absolute address and 1539 // contains Objects with absolute pointers within the image. 1540 // 1541 // 2. There are absolute pointers from Methods in the image to their 1542 // code in the oat. 1543 // 1544 // 3. There are absolute pointers from the code in the oat to Methods 1545 // in the image. 1546 // 1547 // 4. There are absolute pointers from code in the oat to other code 1548 // in the oat. 1549 // 1550 // To get this all correct, we go through several steps. 1551 // 1552 // 1. We have already created that oat file above with 1553 // CreateOatFile. Originally this was just our own proprietary file 1554 // but now it is contained within an ELF dynamic object (aka an .so 1555 // file). The Compiler returned by CreateOatFile provides 1556 // PatchInformation for references to oat code and Methods that need 1557 // to be update once we know where the oat file will be located 1558 // after the image. 1559 // 1560 // 2. We create the image file. It needs to know where the oat file 1561 // will be loaded after itself. Originally when oat file was simply 1562 // memory mapped so we could predict where its contents were based 1563 // on the file size. Now that it is an ELF file, we need to inspect 1564 // the ELF file to understand the in memory segment layout including 1565 // where the oat header is located within. ElfPatcher's Patch method 1566 // uses the PatchInformation from the Compiler to touch up absolute 1567 // references in the oat file. 1568 // 1569 // 3. We fixup the ELF program headers so that dlopen will try to 1570 // load the .so at the desired location at runtime by offsetting the 1571 // Elf32_Phdr.p_vaddr values by the desired base address. 1572 // 1573 if (image) { 1574 TimingLogger::ScopedTiming t("dex2oat ImageWriter", &timings); 1575 bool image_creation_success = dex2oat->CreateImageFile(image_filename, 1576 image_base, 1577 oat_unstripped, 1578 oat_location, 1579 *compiler.get()); 1580 if (!image_creation_success) { 1581 timings.EndTiming(); 1582 return EXIT_FAILURE; 1583 } 1584 VLOG(compiler) << "Image written successfully: " << image_filename; 1585 } 1586 1587 if (is_host) { 1588 timings.EndTiming(); 1589 if (dump_timing || (dump_slow_timing && timings.GetTotalNs() > MsToNs(1000))) { 1590 LOG(INFO) << Dumpable<TimingLogger>(timings); 1591 } 1592 if (dump_passes) { 1593 LOG(INFO) << Dumpable<CumulativeLogger>(*compiler.get()->GetTimingsLogger()); 1594 } 1595 return EXIT_SUCCESS; 1596 } 1597 1598 // If we don't want to strip in place, copy from unstripped location to stripped location. 1599 // We need to strip after image creation because FixupElf needs to use .strtab. 1600 if (oat_unstripped != oat_stripped) { 1601 TimingLogger::ScopedTiming t("dex2oat OatFile copy", &timings); 1602 if (kUsePortableCompiler) { 1603 if (oat_file->FlushCloseOrErase() != 0) { 1604 PLOG(ERROR) << "Failed to flush and close oat file: " << oat_location; 1605 return EXIT_FAILURE; 1606 } 1607 oat_file.reset(); 1608 } 1609 std::unique_ptr<File> in(OS::OpenFileForReading(oat_unstripped.c_str())); 1610 std::unique_ptr<File> out(OS::CreateEmptyFile(oat_stripped.c_str())); 1611 size_t buffer_size = 8192; 1612 std::unique_ptr<uint8_t> buffer(new uint8_t[buffer_size]); 1613 while (true) { 1614 int bytes_read = TEMP_FAILURE_RETRY(read(in->Fd(), buffer.get(), buffer_size)); 1615 if (bytes_read <= 0) { 1616 break; 1617 } 1618 bool write_ok = out->WriteFully(buffer.get(), bytes_read); 1619 CHECK(write_ok); 1620 } 1621 oat_file.reset(out.release()); 1622 VLOG(compiler) << "Oat file copied successfully (stripped): " << oat_stripped; 1623 } 1624 1625 if (kUsePortableCompiler) { 1626 if (!compiler_options->GetIncludeDebugSymbols()) { 1627 timings.NewTiming("dex2oat ElfStripper"); 1628 // Strip unneeded sections for target 1629 off_t seek_actual = lseek(oat_file->Fd(), 0, SEEK_SET); 1630 CHECK_EQ(0, seek_actual); 1631 std::string error_msg; 1632 CHECK(ElfStripper::Strip(oat_file.get(), &error_msg)) << error_msg; 1633 1634 1635 // We wrote the oat file successfully, and want to keep it. 1636 VLOG(compiler) << "Oat file written successfully (stripped): " << oat_location; 1637 } else { 1638 VLOG(compiler) << "Oat file written successfully without stripping: " << oat_location; 1639 } 1640 if (oat_file->FlushCloseOrErase() != 0) { 1641 LOG(ERROR) << "Failed to flush and close oat file: " << oat_location; 1642 return EXIT_FAILURE; 1643 } 1644 oat_file.reset(nullptr); 1645 } 1646 1647 if (oat_file.get() != nullptr) { 1648 if (oat_file->FlushCloseOrErase() != 0) { 1649 PLOG(ERROR) << "Failed to flush and close oat file: " << oat_location << "/" << oat_filename; 1650 return EXIT_FAILURE; 1651 } 1652 } 1653 1654 timings.EndTiming(); 1655 1656 if (dump_timing || (dump_slow_timing && timings.GetTotalNs() > MsToNs(1000))) { 1657 LOG(INFO) << Dumpable<TimingLogger>(timings); 1658 } 1659 if (dump_passes) { 1660 LOG(INFO) << Dumpable<CumulativeLogger>(compiler_phases_timings); 1661 } 1662 1663 dex2oat->LogCompletionTime(compiler.get()); 1664 // Everything was successfully written, do an explicit exit here to avoid running Runtime 1665 // destructors that take time (bug 10645725) unless we're a debug build or running on valgrind. 1666 if (!kIsDebugBuild && (RUNNING_ON_VALGRIND == 0)) { 1667 exit(EXIT_SUCCESS); 1668 } 1669 1670 return EXIT_SUCCESS; 1671} // NOLINT(readability/fn_size) 1672} // namespace art 1673 1674int main(int argc, char** argv) { 1675 return art::dex2oat(argc, argv); 1676} 1677