compiler_driver.cc revision 9b297bfc588c7d38efd12a6f38cd2710fc513ee3
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 "compiler_driver.h" 18 19#define ATRACE_TAG ATRACE_TAG_DALVIK 20#include <utils/Trace.h> 21 22#include <vector> 23#include <unistd.h> 24 25#include "base/stl_util.h" 26#include "base/timing_logger.h" 27#include "class_linker.h" 28#include "dex_compilation_unit.h" 29#include "dex_file-inl.h" 30#include "jni_internal.h" 31#include "object_utils.h" 32#include "runtime.h" 33#include "gc/accounting/card_table-inl.h" 34#include "gc/accounting/heap_bitmap.h" 35#include "gc/space/space.h" 36#include "mirror/art_field-inl.h" 37#include "mirror/art_method-inl.h" 38#include "mirror/class_loader.h" 39#include "mirror/class-inl.h" 40#include "mirror/dex_cache-inl.h" 41#include "mirror/object-inl.h" 42#include "mirror/object_array-inl.h" 43#include "mirror/throwable.h" 44#include "scoped_thread_state_change.h" 45#include "ScopedLocalRef.h" 46#include "thread.h" 47#include "thread_pool.h" 48#include "trampolines/trampoline_compiler.h" 49#include "verifier/method_verifier.h" 50 51#if defined(ART_USE_PORTABLE_COMPILER) 52#include "elf_writer_mclinker.h" 53#else 54#include "elf_writer_quick.h" 55#endif 56 57namespace art { 58 59static double Percentage(size_t x, size_t y) { 60 return 100.0 * (static_cast<double>(x)) / (static_cast<double>(x + y)); 61} 62 63static void DumpStat(size_t x, size_t y, const char* str) { 64 if (x == 0 && y == 0) { 65 return; 66 } 67 VLOG(compiler) << Percentage(x, y) << "% of " << str << " for " << (x + y) << " cases"; 68} 69 70class AOTCompilationStats { 71 public: 72 AOTCompilationStats() 73 : stats_lock_("AOT compilation statistics lock"), 74 types_in_dex_cache_(0), types_not_in_dex_cache_(0), 75 strings_in_dex_cache_(0), strings_not_in_dex_cache_(0), 76 resolved_types_(0), unresolved_types_(0), 77 resolved_instance_fields_(0), unresolved_instance_fields_(0), 78 resolved_local_static_fields_(0), resolved_static_fields_(0), unresolved_static_fields_(0), 79 type_based_devirtualization_(0), 80 safe_casts_(0), not_safe_casts_(0) { 81 for (size_t i = 0; i <= kMaxInvokeType; i++) { 82 resolved_methods_[i] = 0; 83 unresolved_methods_[i] = 0; 84 virtual_made_direct_[i] = 0; 85 direct_calls_to_boot_[i] = 0; 86 direct_methods_to_boot_[i] = 0; 87 } 88 } 89 90 void Dump() { 91 DumpStat(types_in_dex_cache_, types_not_in_dex_cache_, "types known to be in dex cache"); 92 DumpStat(strings_in_dex_cache_, strings_not_in_dex_cache_, "strings known to be in dex cache"); 93 DumpStat(resolved_types_, unresolved_types_, "types resolved"); 94 DumpStat(resolved_instance_fields_, unresolved_instance_fields_, "instance fields resolved"); 95 DumpStat(resolved_local_static_fields_ + resolved_static_fields_, unresolved_static_fields_, 96 "static fields resolved"); 97 DumpStat(resolved_local_static_fields_, resolved_static_fields_ + unresolved_static_fields_, 98 "static fields local to a class"); 99 DumpStat(safe_casts_, not_safe_casts_, "check-casts removed based on type information"); 100 // Note, the code below subtracts the stat value so that when added to the stat value we have 101 // 100% of samples. TODO: clean this up. 102 DumpStat(type_based_devirtualization_, 103 resolved_methods_[kVirtual] + unresolved_methods_[kVirtual] + 104 resolved_methods_[kInterface] + unresolved_methods_[kInterface] - 105 type_based_devirtualization_, 106 "virtual/interface calls made direct based on type information"); 107 108 for (size_t i = 0; i <= kMaxInvokeType; i++) { 109 std::ostringstream oss; 110 oss << static_cast<InvokeType>(i) << " methods were AOT resolved"; 111 DumpStat(resolved_methods_[i], unresolved_methods_[i], oss.str().c_str()); 112 if (virtual_made_direct_[i] > 0) { 113 std::ostringstream oss2; 114 oss2 << static_cast<InvokeType>(i) << " methods made direct"; 115 DumpStat(virtual_made_direct_[i], 116 resolved_methods_[i] + unresolved_methods_[i] - virtual_made_direct_[i], 117 oss2.str().c_str()); 118 } 119 if (direct_calls_to_boot_[i] > 0) { 120 std::ostringstream oss2; 121 oss2 << static_cast<InvokeType>(i) << " method calls are direct into boot"; 122 DumpStat(direct_calls_to_boot_[i], 123 resolved_methods_[i] + unresolved_methods_[i] - direct_calls_to_boot_[i], 124 oss2.str().c_str()); 125 } 126 if (direct_methods_to_boot_[i] > 0) { 127 std::ostringstream oss2; 128 oss2 << static_cast<InvokeType>(i) << " method calls have methods in boot"; 129 DumpStat(direct_methods_to_boot_[i], 130 resolved_methods_[i] + unresolved_methods_[i] - direct_methods_to_boot_[i], 131 oss2.str().c_str()); 132 } 133 } 134 } 135 136// Allow lossy statistics in non-debug builds. 137#ifndef NDEBUG 138#define STATS_LOCK() MutexLock mu(Thread::Current(), stats_lock_) 139#else 140#define STATS_LOCK() 141#endif 142 143 void TypeInDexCache() { 144 STATS_LOCK(); 145 types_in_dex_cache_++; 146 } 147 148 void TypeNotInDexCache() { 149 STATS_LOCK(); 150 types_not_in_dex_cache_++; 151 } 152 153 void StringInDexCache() { 154 STATS_LOCK(); 155 strings_in_dex_cache_++; 156 } 157 158 void StringNotInDexCache() { 159 STATS_LOCK(); 160 strings_not_in_dex_cache_++; 161 } 162 163 void TypeDoesntNeedAccessCheck() { 164 STATS_LOCK(); 165 resolved_types_++; 166 } 167 168 void TypeNeedsAccessCheck() { 169 STATS_LOCK(); 170 unresolved_types_++; 171 } 172 173 void ResolvedInstanceField() { 174 STATS_LOCK(); 175 resolved_instance_fields_++; 176 } 177 178 void UnresolvedInstanceField() { 179 STATS_LOCK(); 180 unresolved_instance_fields_++; 181 } 182 183 void ResolvedLocalStaticField() { 184 STATS_LOCK(); 185 resolved_local_static_fields_++; 186 } 187 188 void ResolvedStaticField() { 189 STATS_LOCK(); 190 resolved_static_fields_++; 191 } 192 193 void UnresolvedStaticField() { 194 STATS_LOCK(); 195 unresolved_static_fields_++; 196 } 197 198 // Indicate that type information from the verifier led to devirtualization. 199 void PreciseTypeDevirtualization() { 200 STATS_LOCK(); 201 type_based_devirtualization_++; 202 } 203 204 // Indicate that a method of the given type was resolved at compile time. 205 void ResolvedMethod(InvokeType type) { 206 DCHECK_LE(type, kMaxInvokeType); 207 STATS_LOCK(); 208 resolved_methods_[type]++; 209 } 210 211 // Indicate that a method of the given type was unresolved at compile time as it was in an 212 // unknown dex file. 213 void UnresolvedMethod(InvokeType type) { 214 DCHECK_LE(type, kMaxInvokeType); 215 STATS_LOCK(); 216 unresolved_methods_[type]++; 217 } 218 219 // Indicate that a type of virtual method dispatch has been converted into a direct method 220 // dispatch. 221 void VirtualMadeDirect(InvokeType type) { 222 DCHECK(type == kVirtual || type == kInterface || type == kSuper); 223 STATS_LOCK(); 224 virtual_made_direct_[type]++; 225 } 226 227 // Indicate that a method of the given type was able to call directly into boot. 228 void DirectCallsToBoot(InvokeType type) { 229 DCHECK_LE(type, kMaxInvokeType); 230 STATS_LOCK(); 231 direct_calls_to_boot_[type]++; 232 } 233 234 // Indicate that a method of the given type was able to be resolved directly from boot. 235 void DirectMethodsToBoot(InvokeType type) { 236 DCHECK_LE(type, kMaxInvokeType); 237 STATS_LOCK(); 238 direct_methods_to_boot_[type]++; 239 } 240 241 // A check-cast could be eliminated due to verifier type analysis. 242 void SafeCast() { 243 STATS_LOCK(); 244 safe_casts_++; 245 } 246 247 // A check-cast couldn't be eliminated due to verifier type analysis. 248 void NotASafeCast() { 249 STATS_LOCK(); 250 not_safe_casts_++; 251 } 252 253 private: 254 Mutex stats_lock_; 255 256 size_t types_in_dex_cache_; 257 size_t types_not_in_dex_cache_; 258 259 size_t strings_in_dex_cache_; 260 size_t strings_not_in_dex_cache_; 261 262 size_t resolved_types_; 263 size_t unresolved_types_; 264 265 size_t resolved_instance_fields_; 266 size_t unresolved_instance_fields_; 267 268 size_t resolved_local_static_fields_; 269 size_t resolved_static_fields_; 270 size_t unresolved_static_fields_; 271 // Type based devirtualization for invoke interface and virtual. 272 size_t type_based_devirtualization_; 273 274 size_t resolved_methods_[kMaxInvokeType + 1]; 275 size_t unresolved_methods_[kMaxInvokeType + 1]; 276 size_t virtual_made_direct_[kMaxInvokeType + 1]; 277 size_t direct_calls_to_boot_[kMaxInvokeType + 1]; 278 size_t direct_methods_to_boot_[kMaxInvokeType + 1]; 279 280 size_t safe_casts_; 281 size_t not_safe_casts_; 282 283 DISALLOW_COPY_AND_ASSIGN(AOTCompilationStats); 284}; 285 286extern "C" void ArtInitCompilerContext(art::CompilerDriver& driver); 287extern "C" void ArtInitQuickCompilerContext(art::CompilerDriver& compiler); 288 289extern "C" void ArtUnInitCompilerContext(art::CompilerDriver& driver); 290extern "C" void ArtUnInitQuickCompilerContext(art::CompilerDriver& compiler); 291 292extern "C" art::CompiledMethod* ArtCompileMethod(art::CompilerDriver& driver, 293 const art::DexFile::CodeItem* code_item, 294 uint32_t access_flags, 295 art::InvokeType invoke_type, 296 uint32_t class_def_idx, 297 uint32_t method_idx, 298 jobject class_loader, 299 const art::DexFile& dex_file); 300extern "C" art::CompiledMethod* ArtQuickCompileMethod(art::CompilerDriver& compiler, 301 const art::DexFile::CodeItem* code_item, 302 uint32_t access_flags, 303 art::InvokeType invoke_type, 304 uint32_t class_def_idx, 305 uint32_t method_idx, 306 jobject class_loader, 307 const art::DexFile& dex_file); 308 309extern "C" art::CompiledMethod* ArtCompileDEX(art::CompilerDriver& compiler, 310 const art::DexFile::CodeItem* code_item, 311 uint32_t access_flags, 312 art::InvokeType invoke_type, 313 uint32_t class_def_idx, 314 uint32_t method_idx, 315 jobject class_loader, 316 const art::DexFile& dex_file); 317#ifdef ART_SEA_IR_MODE 318extern "C" art::CompiledMethod* SeaIrCompileMethod(art::CompilerDriver& compiler, 319 const art::DexFile::CodeItem* code_item, 320 uint32_t access_flags, 321 art::InvokeType invoke_type, 322 uint32_t class_def_idx, 323 uint32_t method_idx, 324 jobject class_loader, 325 const art::DexFile& dex_file); 326#endif 327extern "C" art::CompiledMethod* ArtLLVMJniCompileMethod(art::CompilerDriver& driver, 328 uint32_t access_flags, uint32_t method_idx, 329 const art::DexFile& dex_file); 330 331extern "C" art::CompiledMethod* ArtQuickJniCompileMethod(art::CompilerDriver& compiler, 332 uint32_t access_flags, uint32_t method_idx, 333 const art::DexFile& dex_file); 334 335extern "C" void compilerLLVMSetBitcodeFileName(art::CompilerDriver& driver, 336 std::string const& filename); 337 338CompilerDriver::CompilerDriver(CompilerBackend compiler_backend, InstructionSet instruction_set, 339 bool image, DescriptorSet* image_classes, size_t thread_count, 340 bool dump_stats) 341 : compiler_backend_(compiler_backend), 342 instruction_set_(instruction_set), 343 freezing_constructor_lock_("freezing constructor lock"), 344 compiled_classes_lock_("compiled classes lock"), 345 compiled_methods_lock_("compiled method lock"), 346 image_(image), 347 image_classes_(image_classes), 348 thread_count_(thread_count), 349 start_ns_(0), 350 stats_(new AOTCompilationStats), 351 dump_stats_(dump_stats), 352 compiler_library_(NULL), 353 compiler_(NULL), 354 compiler_context_(NULL), 355 jni_compiler_(NULL), 356 compiler_enable_auto_elf_loading_(NULL), 357 compiler_get_method_code_addr_(NULL), 358 support_boot_image_fixup_(true), 359 dedupe_code_("dedupe code"), 360 dedupe_mapping_table_("dedupe mapping table"), 361 dedupe_vmap_table_("dedupe vmap table"), 362 dedupe_gc_map_("dedupe gc map") { 363 364 CHECK_PTHREAD_CALL(pthread_key_create, (&tls_key_, NULL), "compiler tls key"); 365 366 // TODO: more work needed to combine initializations and allow per-method backend selection 367 typedef void (*InitCompilerContextFn)(CompilerDriver&); 368 InitCompilerContextFn init_compiler_context; 369 if (compiler_backend_ == kPortable) { 370 // Initialize compiler_context_ 371 init_compiler_context = reinterpret_cast<void (*)(CompilerDriver&)>(ArtInitCompilerContext); 372 compiler_ = reinterpret_cast<CompilerFn>(ArtCompileMethod); 373 } else { 374 init_compiler_context = reinterpret_cast<void (*)(CompilerDriver&)>(ArtInitQuickCompilerContext); 375 compiler_ = reinterpret_cast<CompilerFn>(ArtQuickCompileMethod); 376 } 377 378 dex_to_dex_compiler_ = reinterpret_cast<DexToDexCompilerFn>(ArtCompileDEX); 379 380#ifdef ART_SEA_IR_MODE 381 sea_ir_compiler_ = NULL; 382 if (Runtime::Current()->IsSeaIRMode()) { 383 sea_ir_compiler_ = reinterpret_cast<CompilerFn>(SeaIrCompileMethod); 384 } 385#endif 386 387 init_compiler_context(*this); 388 389 if (compiler_backend_ == kPortable) { 390 jni_compiler_ = reinterpret_cast<JniCompilerFn>(ArtLLVMJniCompileMethod); 391 } else { 392 jni_compiler_ = reinterpret_cast<JniCompilerFn>(ArtQuickJniCompileMethod); 393 } 394 395 CHECK(!Runtime::Current()->IsStarted()); 396 if (!image_) { 397 CHECK(image_classes_.get() == NULL); 398 } 399} 400 401std::vector<uint8_t>* CompilerDriver::DeduplicateCode(const std::vector<uint8_t>& code) { 402 return dedupe_code_.Add(Thread::Current(), code); 403} 404 405std::vector<uint8_t>* CompilerDriver::DeduplicateMappingTable(const std::vector<uint8_t>& code) { 406 return dedupe_mapping_table_.Add(Thread::Current(), code); 407} 408 409std::vector<uint8_t>* CompilerDriver::DeduplicateVMapTable(const std::vector<uint8_t>& code) { 410 return dedupe_vmap_table_.Add(Thread::Current(), code); 411} 412 413std::vector<uint8_t>* CompilerDriver::DeduplicateGCMap(const std::vector<uint8_t>& code) { 414 return dedupe_gc_map_.Add(Thread::Current(), code); 415} 416 417CompilerDriver::~CompilerDriver() { 418 Thread* self = Thread::Current(); 419 { 420 MutexLock mu(self, compiled_classes_lock_); 421 STLDeleteValues(&compiled_classes_); 422 } 423 { 424 MutexLock mu(self, compiled_methods_lock_); 425 STLDeleteValues(&compiled_methods_); 426 } 427 { 428 MutexLock mu(self, compiled_methods_lock_); 429 STLDeleteElements(&code_to_patch_); 430 } 431 { 432 MutexLock mu(self, compiled_methods_lock_); 433 STLDeleteElements(&methods_to_patch_); 434 } 435 CHECK_PTHREAD_CALL(pthread_key_delete, (tls_key_), "delete tls key"); 436 typedef void (*UninitCompilerContextFn)(CompilerDriver&); 437 UninitCompilerContextFn uninit_compiler_context; 438 // Uninitialize compiler_context_ 439 // TODO: rework to combine initialization/uninitialization 440 if (compiler_backend_ == kPortable) { 441 uninit_compiler_context = reinterpret_cast<void (*)(CompilerDriver&)>(ArtUnInitCompilerContext); 442 } else { 443 uninit_compiler_context = reinterpret_cast<void (*)(CompilerDriver&)>(ArtUnInitQuickCompilerContext); 444 } 445 uninit_compiler_context(*this); 446} 447 448CompilerTls* CompilerDriver::GetTls() { 449 // Lazily create thread-local storage 450 CompilerTls* res = static_cast<CompilerTls*>(pthread_getspecific(tls_key_)); 451 if (res == NULL) { 452 res = new CompilerTls(); 453 CHECK_PTHREAD_CALL(pthread_setspecific, (tls_key_, res), "compiler tls"); 454 } 455 return res; 456} 457 458const std::vector<uint8_t>* CompilerDriver::CreateInterpreterToInterpreterBridge() const { 459 return CreateTrampoline(instruction_set_, kInterpreterAbi, 460 INTERPRETER_ENTRYPOINT_OFFSET(pInterpreterToInterpreterBridge)); 461} 462 463const std::vector<uint8_t>* CompilerDriver::CreateInterpreterToCompiledCodeBridge() const { 464 return CreateTrampoline(instruction_set_, kInterpreterAbi, 465 INTERPRETER_ENTRYPOINT_OFFSET(pInterpreterToCompiledCodeBridge)); 466} 467 468const std::vector<uint8_t>* CompilerDriver::CreateJniDlsymLookup() const { 469 return CreateTrampoline(instruction_set_, kJniAbi, JNI_ENTRYPOINT_OFFSET(pDlsymLookup)); 470} 471 472const std::vector<uint8_t>* CompilerDriver::CreatePortableResolutionTrampoline() const { 473 return CreateTrampoline(instruction_set_, kPortableAbi, 474 PORTABLE_ENTRYPOINT_OFFSET(pPortableResolutionTrampoline)); 475} 476 477const std::vector<uint8_t>* CompilerDriver::CreatePortableToInterpreterBridge() const { 478 return CreateTrampoline(instruction_set_, kPortableAbi, 479 PORTABLE_ENTRYPOINT_OFFSET(pPortableToInterpreterBridge)); 480} 481 482const std::vector<uint8_t>* CompilerDriver::CreateQuickResolutionTrampoline() const { 483 return CreateTrampoline(instruction_set_, kQuickAbi, 484 QUICK_ENTRYPOINT_OFFSET(pQuickResolutionTrampoline)); 485} 486 487const std::vector<uint8_t>* CompilerDriver::CreateQuickToInterpreterBridge() const { 488 return CreateTrampoline(instruction_set_, kQuickAbi, 489 QUICK_ENTRYPOINT_OFFSET(pQuickToInterpreterBridge)); 490} 491 492void CompilerDriver::CompileAll(jobject class_loader, 493 const std::vector<const DexFile*>& dex_files, 494 base::TimingLogger& timings) { 495 DCHECK(!Runtime::Current()->IsStarted()); 496 UniquePtr<ThreadPool> thread_pool(new ThreadPool(thread_count_ - 1)); 497 PreCompile(class_loader, dex_files, *thread_pool.get(), timings); 498 Compile(class_loader, dex_files, *thread_pool.get(), timings); 499 if (dump_stats_) { 500 stats_->Dump(); 501 } 502} 503 504static DexToDexCompilationLevel GetDexToDexCompilationlevel(mirror::ClassLoader* class_loader, 505 const DexFile& dex_file, 506 const DexFile::ClassDef& class_def) 507 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 508 const char* descriptor = dex_file.GetClassDescriptor(class_def); 509 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 510 mirror::Class* klass = class_linker->FindClass(descriptor, class_loader); 511 if (klass == NULL) { 512 Thread* self = Thread::Current(); 513 CHECK(self->IsExceptionPending()); 514 self->ClearException(); 515 return kDontDexToDexCompile; 516 } 517 // The verifier can only run on "quick" instructions at runtime (see usage of 518 // FindAccessedFieldAtDexPc and FindInvokedMethodAtDexPc in ThrowNullPointerExceptionFromDexPC 519 // function). Since image classes can be verified again while compiling an application, 520 // we must prevent the DEX-to-DEX compiler from introducing them. 521 // TODO: find a way to enable "quick" instructions for image classes and remove this check. 522 bool compiling_image_classes = (class_loader == NULL); 523 if (compiling_image_classes) { 524 return kRequired; 525 } else if (klass->IsVerified()) { 526 // Class is verified so we can enable DEX-to-DEX compilation for performance. 527 return kOptimize; 528 } else if (klass->IsCompileTimeVerified()) { 529 // Class verification has soft-failed. Anyway, ensure at least correctness. 530 DCHECK_EQ(klass->GetStatus(), mirror::Class::kStatusRetryVerificationAtRuntime); 531 return kRequired; 532 } else { 533 // Class verification has failed: do not run DEX-to-DEX compilation. 534 return kDontDexToDexCompile; 535 } 536} 537 538void CompilerDriver::CompileOne(const mirror::ArtMethod* method, base::TimingLogger& timings) { 539 DCHECK(!Runtime::Current()->IsStarted()); 540 Thread* self = Thread::Current(); 541 jobject jclass_loader; 542 const DexFile* dex_file; 543 uint32_t class_def_idx; 544 { 545 ScopedObjectAccessUnchecked soa(self); 546 ScopedLocalRef<jobject> 547 local_class_loader(soa.Env(), 548 soa.AddLocalReference<jobject>(method->GetDeclaringClass()->GetClassLoader())); 549 jclass_loader = soa.Env()->NewGlobalRef(local_class_loader.get()); 550 // Find the dex_file 551 MethodHelper mh(method); 552 dex_file = &mh.GetDexFile(); 553 class_def_idx = mh.GetClassDefIndex(); 554 } 555 self->TransitionFromRunnableToSuspended(kNative); 556 557 std::vector<const DexFile*> dex_files; 558 dex_files.push_back(dex_file); 559 560 UniquePtr<ThreadPool> thread_pool(new ThreadPool(0U)); 561 PreCompile(jclass_loader, dex_files, *thread_pool.get(), timings); 562 563 uint32_t method_idx = method->GetDexMethodIndex(); 564 const DexFile::CodeItem* code_item = dex_file->GetCodeItem(method->GetCodeItemOffset()); 565 // Can we run DEX-to-DEX compiler on this class ? 566 DexToDexCompilationLevel dex_to_dex_compilation_level = kDontDexToDexCompile; 567 { 568 ScopedObjectAccess soa(Thread::Current()); 569 const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_idx); 570 mirror::ClassLoader* class_loader = soa.Decode<mirror::ClassLoader*>(jclass_loader); 571 dex_to_dex_compilation_level = GetDexToDexCompilationlevel(class_loader, *dex_file, class_def); 572 } 573 CompileMethod(code_item, method->GetAccessFlags(), method->GetInvokeType(), 574 class_def_idx, method_idx, jclass_loader, *dex_file, dex_to_dex_compilation_level); 575 576 self->GetJniEnv()->DeleteGlobalRef(jclass_loader); 577 578 self->TransitionFromSuspendedToRunnable(); 579} 580 581void CompilerDriver::Resolve(jobject class_loader, const std::vector<const DexFile*>& dex_files, 582 ThreadPool& thread_pool, base::TimingLogger& timings) { 583 for (size_t i = 0; i != dex_files.size(); ++i) { 584 const DexFile* dex_file = dex_files[i]; 585 CHECK(dex_file != NULL); 586 ResolveDexFile(class_loader, *dex_file, thread_pool, timings); 587 } 588} 589 590void CompilerDriver::PreCompile(jobject class_loader, const std::vector<const DexFile*>& dex_files, 591 ThreadPool& thread_pool, base::TimingLogger& timings) { 592 LoadImageClasses(timings); 593 594 Resolve(class_loader, dex_files, thread_pool, timings); 595 596 Verify(class_loader, dex_files, thread_pool, timings); 597 598 InitializeClasses(class_loader, dex_files, thread_pool, timings); 599 600 UpdateImageClasses(timings); 601} 602 603bool CompilerDriver::IsImageClass(const char* descriptor) const { 604 DCHECK(descriptor != NULL); 605 if (!IsImage()) { 606 return true; 607 } else { 608 return image_classes_->find(descriptor) != image_classes_->end(); 609 } 610} 611 612static void ResolveExceptionsForMethod(MethodHelper* mh, 613 std::set<std::pair<uint16_t, const DexFile*> >& exceptions_to_resolve) 614 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 615 const DexFile::CodeItem* code_item = mh->GetCodeItem(); 616 if (code_item == NULL) { 617 return; // native or abstract method 618 } 619 if (code_item->tries_size_ == 0) { 620 return; // nothing to process 621 } 622 const byte* encoded_catch_handler_list = DexFile::GetCatchHandlerData(*code_item, 0); 623 size_t num_encoded_catch_handlers = DecodeUnsignedLeb128(&encoded_catch_handler_list); 624 for (size_t i = 0; i < num_encoded_catch_handlers; i++) { 625 int32_t encoded_catch_handler_size = DecodeSignedLeb128(&encoded_catch_handler_list); 626 bool has_catch_all = false; 627 if (encoded_catch_handler_size <= 0) { 628 encoded_catch_handler_size = -encoded_catch_handler_size; 629 has_catch_all = true; 630 } 631 for (int32_t j = 0; j < encoded_catch_handler_size; j++) { 632 uint16_t encoded_catch_handler_handlers_type_idx = 633 DecodeUnsignedLeb128(&encoded_catch_handler_list); 634 // Add to set of types to resolve if not already in the dex cache resolved types 635 if (!mh->IsResolvedTypeIdx(encoded_catch_handler_handlers_type_idx)) { 636 exceptions_to_resolve.insert( 637 std::pair<uint16_t, const DexFile*>(encoded_catch_handler_handlers_type_idx, 638 &mh->GetDexFile())); 639 } 640 // ignore address associated with catch handler 641 DecodeUnsignedLeb128(&encoded_catch_handler_list); 642 } 643 if (has_catch_all) { 644 // ignore catch all address 645 DecodeUnsignedLeb128(&encoded_catch_handler_list); 646 } 647 } 648} 649 650static bool ResolveCatchBlockExceptionsClassVisitor(mirror::Class* c, void* arg) 651 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 652 std::set<std::pair<uint16_t, const DexFile*> >* exceptions_to_resolve = 653 reinterpret_cast<std::set<std::pair<uint16_t, const DexFile*> >*>(arg); 654 MethodHelper mh; 655 for (size_t i = 0; i < c->NumVirtualMethods(); ++i) { 656 mirror::ArtMethod* m = c->GetVirtualMethod(i); 657 mh.ChangeMethod(m); 658 ResolveExceptionsForMethod(&mh, *exceptions_to_resolve); 659 } 660 for (size_t i = 0; i < c->NumDirectMethods(); ++i) { 661 mirror::ArtMethod* m = c->GetDirectMethod(i); 662 mh.ChangeMethod(m); 663 ResolveExceptionsForMethod(&mh, *exceptions_to_resolve); 664 } 665 return true; 666} 667 668static bool RecordImageClassesVisitor(mirror::Class* klass, void* arg) 669 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 670 CompilerDriver::DescriptorSet* image_classes = 671 reinterpret_cast<CompilerDriver::DescriptorSet*>(arg); 672 image_classes->insert(ClassHelper(klass).GetDescriptor()); 673 return true; 674} 675 676// Make a list of descriptors for classes to include in the image 677void CompilerDriver::LoadImageClasses(base::TimingLogger& timings) 678 LOCKS_EXCLUDED(Locks::mutator_lock_) { 679 if (!IsImage()) { 680 return; 681 } 682 683 timings.NewSplit("LoadImageClasses"); 684 // Make a first class to load all classes explicitly listed in the file 685 Thread* self = Thread::Current(); 686 ScopedObjectAccess soa(self); 687 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 688 for (auto it = image_classes_->begin(), end = image_classes_->end(); it != end;) { 689 std::string descriptor(*it); 690 SirtRef<mirror::Class> klass(self, class_linker->FindSystemClass(descriptor.c_str())); 691 if (klass.get() == NULL) { 692 image_classes_->erase(it++); 693 VLOG(compiler) << "Failed to find class " << descriptor; 694 self->ClearException(); 695 } else { 696 ++it; 697 } 698 } 699 700 // Resolve exception classes referenced by the loaded classes. The catch logic assumes 701 // exceptions are resolved by the verifier when there is a catch block in an interested method. 702 // Do this here so that exception classes appear to have been specified image classes. 703 std::set<std::pair<uint16_t, const DexFile*> > unresolved_exception_types; 704 SirtRef<mirror::Class> java_lang_Throwable(self, 705 class_linker->FindSystemClass("Ljava/lang/Throwable;")); 706 do { 707 unresolved_exception_types.clear(); 708 class_linker->VisitClasses(ResolveCatchBlockExceptionsClassVisitor, 709 &unresolved_exception_types); 710 for (const std::pair<uint16_t, const DexFile*>& exception_type : unresolved_exception_types) { 711 uint16_t exception_type_idx = exception_type.first; 712 const DexFile* dex_file = exception_type.second; 713 mirror::DexCache* dex_cache = class_linker->FindDexCache(*dex_file); 714 mirror:: ClassLoader* class_loader = NULL; 715 SirtRef<mirror::Class> klass(self, class_linker->ResolveType(*dex_file, exception_type_idx, 716 dex_cache, class_loader)); 717 if (klass.get() == NULL) { 718 const DexFile::TypeId& type_id = dex_file->GetTypeId(exception_type_idx); 719 const char* descriptor = dex_file->GetTypeDescriptor(type_id); 720 LOG(FATAL) << "Failed to resolve class " << descriptor; 721 } 722 DCHECK(java_lang_Throwable->IsAssignableFrom(klass.get())); 723 } 724 // Resolving exceptions may load classes that reference more exceptions, iterate until no 725 // more are found 726 } while (!unresolved_exception_types.empty()); 727 728 // We walk the roots looking for classes so that we'll pick up the 729 // above classes plus any classes them depend on such super 730 // classes, interfaces, and the required ClassLinker roots. 731 class_linker->VisitClasses(RecordImageClassesVisitor, image_classes_.get()); 732 733 CHECK_NE(image_classes_->size(), 0U); 734} 735 736static void MaybeAddToImageClasses(mirror::Class* klass, CompilerDriver::DescriptorSet* image_classes) 737 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 738 while (!klass->IsObjectClass()) { 739 ClassHelper kh(klass); 740 const char* descriptor = kh.GetDescriptor(); 741 std::pair<CompilerDriver::DescriptorSet::iterator, bool> result = 742 image_classes->insert(descriptor); 743 if (result.second) { 744 VLOG(compiler) << "Adding " << descriptor << " to image classes"; 745 } else { 746 return; 747 } 748 for (size_t i = 0; i < kh.NumDirectInterfaces(); ++i) { 749 MaybeAddToImageClasses(kh.GetDirectInterface(i), image_classes); 750 } 751 if (klass->IsArrayClass()) { 752 MaybeAddToImageClasses(klass->GetComponentType(), image_classes); 753 } 754 klass = klass->GetSuperClass(); 755 } 756} 757 758void CompilerDriver::FindClinitImageClassesCallback(mirror::Object* object, void* arg) { 759 DCHECK(object != NULL); 760 DCHECK(arg != NULL); 761 CompilerDriver* compiler_driver = reinterpret_cast<CompilerDriver*>(arg); 762 MaybeAddToImageClasses(object->GetClass(), compiler_driver->image_classes_.get()); 763} 764 765void CompilerDriver::UpdateImageClasses(base::TimingLogger& timings) { 766 if (IsImage()) { 767 timings.NewSplit("UpdateImageClasses"); 768 769 // Update image_classes_ with classes for objects created by <clinit> methods. 770 Thread* self = Thread::Current(); 771 const char* old_cause = self->StartAssertNoThreadSuspension("ImageWriter"); 772 gc::Heap* heap = Runtime::Current()->GetHeap(); 773 // TODO: Image spaces only? 774 WriterMutexLock mu(self, *Locks::heap_bitmap_lock_); 775 heap->FlushAllocStack(); 776 heap->GetLiveBitmap()->Walk(FindClinitImageClassesCallback, this); 777 self->EndAssertNoThreadSuspension(old_cause); 778 } 779} 780 781bool CompilerDriver::CanAssumeTypeIsPresentInDexCache(const DexFile& dex_file, 782 uint32_t type_idx) { 783 if (IsImage() && IsImageClass(dex_file.GetTypeDescriptor(dex_file.GetTypeId(type_idx)))) { 784 if (kIsDebugBuild) { 785 ScopedObjectAccess soa(Thread::Current()); 786 mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); 787 mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); 788 CHECK(resolved_class != NULL); 789 } 790 stats_->TypeInDexCache(); 791 return true; 792 } else { 793 stats_->TypeNotInDexCache(); 794 return false; 795 } 796} 797 798bool CompilerDriver::CanAssumeStringIsPresentInDexCache(const DexFile& dex_file, 799 uint32_t string_idx) { 800 // See also Compiler::ResolveDexFile 801 802 bool result = false; 803 if (IsImage()) { 804 // We resolve all const-string strings when building for the image. 805 ScopedObjectAccess soa(Thread::Current()); 806 mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); 807 Runtime::Current()->GetClassLinker()->ResolveString(dex_file, string_idx, dex_cache); 808 result = true; 809 } 810 if (result) { 811 stats_->StringInDexCache(); 812 } else { 813 stats_->StringNotInDexCache(); 814 } 815 return result; 816} 817 818bool CompilerDriver::CanAccessTypeWithoutChecks(uint32_t referrer_idx, const DexFile& dex_file, 819 uint32_t type_idx, 820 bool* type_known_final, bool* type_known_abstract, 821 bool* equals_referrers_class) { 822 if (type_known_final != NULL) { 823 *type_known_final = false; 824 } 825 if (type_known_abstract != NULL) { 826 *type_known_abstract = false; 827 } 828 if (equals_referrers_class != NULL) { 829 *equals_referrers_class = false; 830 } 831 ScopedObjectAccess soa(Thread::Current()); 832 mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); 833 // Get type from dex cache assuming it was populated by the verifier 834 mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); 835 if (resolved_class == NULL) { 836 stats_->TypeNeedsAccessCheck(); 837 return false; // Unknown class needs access checks. 838 } 839 const DexFile::MethodId& method_id = dex_file.GetMethodId(referrer_idx); 840 if (equals_referrers_class != NULL) { 841 *equals_referrers_class = (method_id.class_idx_ == type_idx); 842 } 843 mirror::Class* referrer_class = dex_cache->GetResolvedType(method_id.class_idx_); 844 if (referrer_class == NULL) { 845 stats_->TypeNeedsAccessCheck(); 846 return false; // Incomplete referrer knowledge needs access check. 847 } 848 // Perform access check, will return true if access is ok or false if we're going to have to 849 // check this at runtime (for example for class loaders). 850 bool result = referrer_class->CanAccess(resolved_class); 851 if (result) { 852 stats_->TypeDoesntNeedAccessCheck(); 853 if (type_known_final != NULL) { 854 *type_known_final = resolved_class->IsFinal() && !resolved_class->IsArrayClass(); 855 } 856 if (type_known_abstract != NULL) { 857 *type_known_abstract = resolved_class->IsAbstract() && !resolved_class->IsArrayClass(); 858 } 859 } else { 860 stats_->TypeNeedsAccessCheck(); 861 } 862 return result; 863} 864 865bool CompilerDriver::CanAccessInstantiableTypeWithoutChecks(uint32_t referrer_idx, 866 const DexFile& dex_file, 867 uint32_t type_idx) { 868 ScopedObjectAccess soa(Thread::Current()); 869 mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); 870 // Get type from dex cache assuming it was populated by the verifier. 871 mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); 872 if (resolved_class == NULL) { 873 stats_->TypeNeedsAccessCheck(); 874 return false; // Unknown class needs access checks. 875 } 876 const DexFile::MethodId& method_id = dex_file.GetMethodId(referrer_idx); 877 mirror::Class* referrer_class = dex_cache->GetResolvedType(method_id.class_idx_); 878 if (referrer_class == NULL) { 879 stats_->TypeNeedsAccessCheck(); 880 return false; // Incomplete referrer knowledge needs access check. 881 } 882 // Perform access and instantiable checks, will return true if access is ok or false if we're 883 // going to have to check this at runtime (for example for class loaders). 884 bool result = referrer_class->CanAccess(resolved_class) && resolved_class->IsInstantiable(); 885 if (result) { 886 stats_->TypeDoesntNeedAccessCheck(); 887 } else { 888 stats_->TypeNeedsAccessCheck(); 889 } 890 return result; 891} 892 893static mirror::Class* ComputeCompilingMethodsClass(ScopedObjectAccess& soa, 894 mirror::DexCache* dex_cache, 895 const DexCompilationUnit* mUnit) 896 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 897 // The passed dex_cache is a hint, sanity check before asking the class linker that will take a 898 // lock. 899 if (dex_cache->GetDexFile() != mUnit->GetDexFile()) { 900 dex_cache = mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile()); 901 } 902 mirror::ClassLoader* class_loader = soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader()); 903 const DexFile::MethodId& referrer_method_id = mUnit->GetDexFile()->GetMethodId(mUnit->GetDexMethodIndex()); 904 return mUnit->GetClassLinker()->ResolveType(*mUnit->GetDexFile(), referrer_method_id.class_idx_, 905 dex_cache, class_loader); 906} 907 908static mirror::ArtField* ComputeFieldReferencedFromCompilingMethod(ScopedObjectAccess& soa, 909 const DexCompilationUnit* mUnit, 910 uint32_t field_idx) 911 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 912 mirror::DexCache* dex_cache = mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile()); 913 mirror::ClassLoader* class_loader = soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader()); 914 return mUnit->GetClassLinker()->ResolveField(*mUnit->GetDexFile(), field_idx, dex_cache, 915 class_loader, false); 916} 917 918static mirror::ArtMethod* ComputeMethodReferencedFromCompilingMethod(ScopedObjectAccess& soa, 919 const DexCompilationUnit* mUnit, 920 uint32_t method_idx, 921 InvokeType type) 922 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 923 mirror::DexCache* dex_cache = mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile()); 924 mirror::ClassLoader* class_loader = soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader()); 925 return mUnit->GetClassLinker()->ResolveMethod(*mUnit->GetDexFile(), method_idx, dex_cache, 926 class_loader, NULL, type); 927} 928 929bool CompilerDriver::ComputeInstanceFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, 930 bool is_put, int* field_offset, bool* is_volatile) { 931 ScopedObjectAccess soa(Thread::Current()); 932 // Conservative defaults. 933 *field_offset = -1; 934 *is_volatile = true; 935 // Try to resolve field and ignore if an Incompatible Class Change Error (ie is static). 936 mirror::ArtField* resolved_field = ComputeFieldReferencedFromCompilingMethod(soa, mUnit, field_idx); 937 if (resolved_field != NULL && !resolved_field->IsStatic()) { 938 mirror::Class* referrer_class = 939 ComputeCompilingMethodsClass(soa, resolved_field->GetDeclaringClass()->GetDexCache(), 940 mUnit); 941 if (referrer_class != NULL) { 942 mirror::Class* fields_class = resolved_field->GetDeclaringClass(); 943 bool access_ok = referrer_class->CanAccess(fields_class) && 944 referrer_class->CanAccessMember(fields_class, 945 resolved_field->GetAccessFlags()); 946 if (!access_ok) { 947 // The referring class can't access the resolved field, this may occur as a result of a 948 // protected field being made public by a sub-class. Resort to the dex file to determine 949 // the correct class for the access check. 950 const DexFile& dex_file = *referrer_class->GetDexCache()->GetDexFile(); 951 mirror::Class* dex_fields_class = mUnit->GetClassLinker()->ResolveType(dex_file, 952 dex_file.GetFieldId(field_idx).class_idx_, 953 referrer_class); 954 access_ok = referrer_class->CanAccess(dex_fields_class) && 955 referrer_class->CanAccessMember(dex_fields_class, 956 resolved_field->GetAccessFlags()); 957 } 958 bool is_write_to_final_from_wrong_class = is_put && resolved_field->IsFinal() && 959 fields_class != referrer_class; 960 if (access_ok && !is_write_to_final_from_wrong_class) { 961 *field_offset = resolved_field->GetOffset().Int32Value(); 962 *is_volatile = resolved_field->IsVolatile(); 963 stats_->ResolvedInstanceField(); 964 return true; // Fast path. 965 } 966 } 967 } 968 // Clean up any exception left by field/type resolution 969 if (soa.Self()->IsExceptionPending()) { 970 soa.Self()->ClearException(); 971 } 972 stats_->UnresolvedInstanceField(); 973 return false; // Incomplete knowledge needs slow path. 974} 975 976bool CompilerDriver::ComputeStaticFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, 977 bool is_put, int* field_offset, int* ssb_index, 978 bool* is_referrers_class, bool* is_volatile) { 979 ScopedObjectAccess soa(Thread::Current()); 980 // Conservative defaults. 981 *field_offset = -1; 982 *ssb_index = -1; 983 *is_referrers_class = false; 984 *is_volatile = true; 985 // Try to resolve field and ignore if an Incompatible Class Change Error (ie isn't static). 986 mirror::ArtField* resolved_field = ComputeFieldReferencedFromCompilingMethod(soa, mUnit, field_idx); 987 if (resolved_field != NULL && resolved_field->IsStatic()) { 988 mirror::Class* referrer_class = 989 ComputeCompilingMethodsClass(soa, resolved_field->GetDeclaringClass()->GetDexCache(), 990 mUnit); 991 if (referrer_class != NULL) { 992 mirror::Class* fields_class = resolved_field->GetDeclaringClass(); 993 if (fields_class == referrer_class) { 994 *is_referrers_class = true; // implies no worrying about class initialization 995 *field_offset = resolved_field->GetOffset().Int32Value(); 996 *is_volatile = resolved_field->IsVolatile(); 997 stats_->ResolvedLocalStaticField(); 998 return true; // fast path 999 } else { 1000 bool access_ok = referrer_class->CanAccess(fields_class) && 1001 referrer_class->CanAccessMember(fields_class, 1002 resolved_field->GetAccessFlags()); 1003 if (!access_ok) { 1004 // The referring class can't access the resolved field, this may occur as a result of a 1005 // protected field being made public by a sub-class. Resort to the dex file to determine 1006 // the correct class for the access check. Don't change the field's class as that is 1007 // used to identify the SSB. 1008 const DexFile& dex_file = *referrer_class->GetDexCache()->GetDexFile(); 1009 mirror::Class* dex_fields_class = 1010 mUnit->GetClassLinker()->ResolveType(dex_file, 1011 dex_file.GetFieldId(field_idx).class_idx_, 1012 referrer_class); 1013 access_ok = referrer_class->CanAccess(dex_fields_class) && 1014 referrer_class->CanAccessMember(dex_fields_class, 1015 resolved_field->GetAccessFlags()); 1016 } 1017 bool is_write_to_final_from_wrong_class = is_put && resolved_field->IsFinal(); 1018 if (access_ok && !is_write_to_final_from_wrong_class) { 1019 // We have the resolved field, we must make it into a ssbIndex for the referrer 1020 // in its static storage base (which may fail if it doesn't have a slot for it) 1021 // TODO: for images we can elide the static storage base null check 1022 // if we know there's a non-null entry in the image 1023 mirror::DexCache* dex_cache = mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile()); 1024 if (fields_class->GetDexCache() == dex_cache) { 1025 // common case where the dex cache of both the referrer and the field are the same, 1026 // no need to search the dex file 1027 *ssb_index = fields_class->GetDexTypeIndex(); 1028 *field_offset = resolved_field->GetOffset().Int32Value(); 1029 *is_volatile = resolved_field->IsVolatile(); 1030 stats_->ResolvedStaticField(); 1031 return true; 1032 } 1033 // Search dex file for localized ssb index, may fail if field's class is a parent 1034 // of the class mentioned in the dex file and there is no dex cache entry. 1035 const DexFile::StringId* string_id = 1036 mUnit->GetDexFile()->FindStringId(FieldHelper(resolved_field).GetDeclaringClassDescriptor()); 1037 if (string_id != NULL) { 1038 const DexFile::TypeId* type_id = 1039 mUnit->GetDexFile()->FindTypeId(mUnit->GetDexFile()->GetIndexForStringId(*string_id)); 1040 if (type_id != NULL) { 1041 // medium path, needs check of static storage base being initialized 1042 *ssb_index = mUnit->GetDexFile()->GetIndexForTypeId(*type_id); 1043 *field_offset = resolved_field->GetOffset().Int32Value(); 1044 *is_volatile = resolved_field->IsVolatile(); 1045 stats_->ResolvedStaticField(); 1046 return true; 1047 } 1048 } 1049 } 1050 } 1051 } 1052 } 1053 // Clean up any exception left by field/type resolution 1054 if (soa.Self()->IsExceptionPending()) { 1055 soa.Self()->ClearException(); 1056 } 1057 stats_->UnresolvedStaticField(); 1058 return false; // Incomplete knowledge needs slow path. 1059} 1060 1061void CompilerDriver::GetCodeAndMethodForDirectCall(InvokeType type, InvokeType sharp_type, 1062 mirror::Class* referrer_class, 1063 mirror::ArtMethod* method, 1064 bool update_stats, 1065 uintptr_t* direct_code, 1066 uintptr_t* direct_method) { 1067 // For direct and static methods compute possible direct_code and direct_method values, ie 1068 // an address for the Method* being invoked and an address of the code for that Method*. 1069 // For interface calls compute a value for direct_method that is the interface method being 1070 // invoked, so this can be passed to the out-of-line runtime support code. 1071 *direct_code = 0; 1072 *direct_method = 0; 1073 if (compiler_backend_ == kPortable) { 1074 if (sharp_type != kStatic && sharp_type != kDirect) { 1075 return; 1076 } 1077 } else { 1078 if (sharp_type != kStatic && sharp_type != kDirect && sharp_type != kInterface) { 1079 return; 1080 } 1081 } 1082 bool method_code_in_boot = method->GetDeclaringClass()->GetClassLoader() == NULL; 1083 if (!method_code_in_boot) { 1084 return; 1085 } 1086 bool has_clinit_trampoline = method->IsStatic() && !method->GetDeclaringClass()->IsInitialized(); 1087 if (has_clinit_trampoline && (method->GetDeclaringClass() != referrer_class)) { 1088 // Ensure we run the clinit trampoline unless we are invoking a static method in the same class. 1089 return; 1090 } 1091 if (update_stats) { 1092 if (sharp_type != kInterface) { // Interfaces always go via a trampoline. 1093 stats_->DirectCallsToBoot(type); 1094 } 1095 stats_->DirectMethodsToBoot(type); 1096 } 1097 bool compiling_boot = Runtime::Current()->GetHeap()->GetContinuousSpaces().size() == 1; 1098 if (compiling_boot) { 1099 if (support_boot_image_fixup_) { 1100 MethodHelper mh(method); 1101 if (IsImageClass(mh.GetDeclaringClassDescriptor())) { 1102 // We can only branch directly to Methods that are resolved in the DexCache. 1103 // Otherwise we won't invoke the resolution trampoline. 1104 *direct_method = -1; 1105 *direct_code = -1; 1106 } 1107 } 1108 } else { 1109 if (Runtime::Current()->GetHeap()->FindSpaceFromObject(method, false)->IsImageSpace()) { 1110 *direct_method = reinterpret_cast<uintptr_t>(method); 1111 } 1112 *direct_code = reinterpret_cast<uintptr_t>(method->GetEntryPointFromCompiledCode()); 1113 } 1114} 1115 1116bool CompilerDriver::ComputeInvokeInfo(const DexCompilationUnit* mUnit, const uint32_t dex_pc, 1117 bool update_stats, bool enable_devirtualization, 1118 InvokeType* invoke_type, MethodReference* target_method, 1119 int* vtable_idx, uintptr_t* direct_code, 1120 uintptr_t* direct_method) { 1121 ScopedObjectAccess soa(Thread::Current()); 1122 *vtable_idx = -1; 1123 *direct_code = 0; 1124 *direct_method = 0; 1125 mirror::ArtMethod* resolved_method = 1126 ComputeMethodReferencedFromCompilingMethod(soa, mUnit, target_method->dex_method_index, 1127 *invoke_type); 1128 if (resolved_method != NULL) { 1129 // Don't try to fast-path if we don't understand the caller's class or this appears to be an 1130 // Incompatible Class Change Error. 1131 mirror::Class* referrer_class = 1132 ComputeCompilingMethodsClass(soa, resolved_method->GetDeclaringClass()->GetDexCache(), 1133 mUnit); 1134 bool icce = resolved_method->CheckIncompatibleClassChange(*invoke_type); 1135 if (referrer_class != NULL && !icce) { 1136 mirror::Class* methods_class = resolved_method->GetDeclaringClass(); 1137 if (!referrer_class->CanAccess(methods_class) || 1138 !referrer_class->CanAccessMember(methods_class, 1139 resolved_method->GetAccessFlags())) { 1140 // The referring class can't access the resolved method, this may occur as a result of a 1141 // protected method being made public by implementing an interface that re-declares the 1142 // method public. Resort to the dex file to determine the correct class for the access 1143 // check. 1144 uint16_t class_idx = 1145 target_method->dex_file->GetMethodId(target_method->dex_method_index).class_idx_; 1146 methods_class = mUnit->GetClassLinker()->ResolveType(*target_method->dex_file, 1147 class_idx, referrer_class); 1148 } 1149 if (referrer_class->CanAccess(methods_class) && 1150 referrer_class->CanAccessMember(methods_class, resolved_method->GetAccessFlags())) { 1151 const bool enableFinalBasedSharpening = enable_devirtualization; 1152 // Sharpen a virtual call into a direct call when the target is known not to have been 1153 // overridden (ie is final). 1154 bool can_sharpen_virtual_based_on_type = 1155 (*invoke_type == kVirtual) && (resolved_method->IsFinal() || methods_class->IsFinal()); 1156 // For invoke-super, ensure the vtable index will be correct to dispatch in the vtable of 1157 // the super class. 1158 bool can_sharpen_super_based_on_type = (*invoke_type == kSuper) && 1159 (referrer_class != methods_class) && referrer_class->IsSubClass(methods_class) && 1160 resolved_method->GetMethodIndex() < methods_class->GetVTable()->GetLength() && 1161 (methods_class->GetVTable()->Get(resolved_method->GetMethodIndex()) == resolved_method); 1162 1163 if (enableFinalBasedSharpening && (can_sharpen_virtual_based_on_type || 1164 can_sharpen_super_based_on_type)) { 1165 // Sharpen a virtual call into a direct call. The method_idx is into referrer's 1166 // dex cache, check that this resolved method is where we expect it. 1167 CHECK(referrer_class->GetDexCache()->GetResolvedMethod(target_method->dex_method_index) == 1168 resolved_method) << PrettyMethod(resolved_method); 1169 if (update_stats) { 1170 stats_->ResolvedMethod(*invoke_type); 1171 stats_->VirtualMadeDirect(*invoke_type); 1172 } 1173 GetCodeAndMethodForDirectCall(*invoke_type, kDirect, referrer_class, resolved_method, 1174 update_stats, direct_code, direct_method); 1175 *invoke_type = kDirect; 1176 return true; 1177 } 1178 const bool enableVerifierBasedSharpening = enable_devirtualization; 1179 if (enableVerifierBasedSharpening && (*invoke_type == kVirtual || 1180 *invoke_type == kInterface)) { 1181 // Did the verifier record a more precise invoke target based on its type information? 1182 const MethodReference caller_method(mUnit->GetDexFile(), mUnit->GetDexMethodIndex()); 1183 const MethodReference* devirt_map_target = 1184 verifier::MethodVerifier::GetDevirtMap(caller_method, dex_pc); 1185 if (devirt_map_target != NULL) { 1186 mirror::DexCache* target_dex_cache = 1187 mUnit->GetClassLinker()->FindDexCache(*devirt_map_target->dex_file); 1188 mirror::ClassLoader* class_loader = 1189 soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader()); 1190 mirror::ArtMethod* called_method = 1191 mUnit->GetClassLinker()->ResolveMethod(*devirt_map_target->dex_file, 1192 devirt_map_target->dex_method_index, 1193 target_dex_cache, class_loader, NULL, 1194 kVirtual); 1195 CHECK(called_method != NULL); 1196 CHECK(!called_method->IsAbstract()); 1197 GetCodeAndMethodForDirectCall(*invoke_type, kDirect, referrer_class, called_method, 1198 update_stats, direct_code, direct_method); 1199 bool compiler_needs_dex_cache = 1200 (GetCompilerBackend() == kPortable) || 1201 (GetCompilerBackend() == kQuick && instruction_set_ != kThumb2) || 1202 (*direct_code == 0) || (*direct_code == static_cast<unsigned int>(-1)) || 1203 (*direct_method == 0) || (*direct_method == static_cast<unsigned int>(-1)); 1204 if ((devirt_map_target->dex_file != target_method->dex_file) && 1205 compiler_needs_dex_cache) { 1206 // We need to use the dex cache to find either the method or code, and the dex file 1207 // containing the method isn't the one expected for the target method. Try to find 1208 // the method within the expected target dex file. 1209 // TODO: the -1 could be handled as direct code if the patching new the target dex 1210 // file. 1211 // TODO: quick only supports direct pointers with Thumb2. 1212 // TODO: the following should be factored into a common helper routine to find 1213 // one dex file's method within another. 1214 const DexFile* dexfile = target_method->dex_file; 1215 const DexFile* cm_dexfile = 1216 called_method->GetDeclaringClass()->GetDexCache()->GetDexFile(); 1217 const DexFile::MethodId& cm_method_id = 1218 cm_dexfile->GetMethodId(called_method->GetDexMethodIndex()); 1219 const char* cm_descriptor = cm_dexfile->StringByTypeIdx(cm_method_id.class_idx_); 1220 const DexFile::StringId* descriptor = dexfile->FindStringId(cm_descriptor); 1221 if (descriptor != NULL) { 1222 const DexFile::TypeId* type_id = 1223 dexfile->FindTypeId(dexfile->GetIndexForStringId(*descriptor)); 1224 if (type_id != NULL) { 1225 const char* cm_name = cm_dexfile->GetMethodName(cm_method_id); 1226 const DexFile::StringId* name = dexfile->FindStringId(cm_name); 1227 if (name != NULL) { 1228 uint16_t return_type_idx; 1229 std::vector<uint16_t> param_type_idxs; 1230 bool success = dexfile->CreateTypeList(&return_type_idx, ¶m_type_idxs, 1231 cm_dexfile->GetMethodSignature(cm_method_id)); 1232 if (success) { 1233 const DexFile::ProtoId* sig = 1234 dexfile->FindProtoId(return_type_idx, param_type_idxs); 1235 if (sig != NULL) { 1236 const DexFile::MethodId* method_id = dexfile->FindMethodId(*type_id, 1237 *name, *sig); 1238 if (method_id != NULL) { 1239 if (update_stats) { 1240 stats_->ResolvedMethod(*invoke_type); 1241 stats_->VirtualMadeDirect(*invoke_type); 1242 stats_->PreciseTypeDevirtualization(); 1243 } 1244 target_method->dex_method_index = 1245 dexfile->GetIndexForMethodId(*method_id); 1246 *invoke_type = kDirect; 1247 return true; 1248 } 1249 } 1250 } 1251 } 1252 } 1253 } 1254 // TODO: the stats for direct code and method are off as we failed to find the direct 1255 // method in the referring method's dex cache/file. 1256 } else { 1257 if (update_stats) { 1258 stats_->ResolvedMethod(*invoke_type); 1259 stats_->VirtualMadeDirect(*invoke_type); 1260 stats_->PreciseTypeDevirtualization(); 1261 } 1262 *target_method = *devirt_map_target; 1263 *invoke_type = kDirect; 1264 return true; 1265 } 1266 } 1267 } 1268 if (*invoke_type == kSuper) { 1269 // Unsharpened super calls are suspicious so go slow-path. 1270 } else { 1271 // Sharpening failed so generate a regular resolved method dispatch. 1272 if (update_stats) { 1273 stats_->ResolvedMethod(*invoke_type); 1274 } 1275 if (*invoke_type == kVirtual || *invoke_type == kSuper) { 1276 *vtable_idx = resolved_method->GetMethodIndex(); 1277 } 1278 GetCodeAndMethodForDirectCall(*invoke_type, *invoke_type, referrer_class, resolved_method, 1279 update_stats, direct_code, direct_method); 1280 return true; 1281 } 1282 } 1283 } 1284 } 1285 // Clean up any exception left by method/invoke_type resolution 1286 if (soa.Self()->IsExceptionPending()) { 1287 soa.Self()->ClearException(); 1288 } 1289 if (update_stats) { 1290 stats_->UnresolvedMethod(*invoke_type); 1291 } 1292 return false; // Incomplete knowledge needs slow path. 1293} 1294 1295bool CompilerDriver::IsSafeCast(const MethodReference& mr, uint32_t dex_pc) { 1296 bool result = verifier::MethodVerifier::IsSafeCast(mr, dex_pc); 1297 if (result) { 1298 stats_->SafeCast(); 1299 } else { 1300 stats_->NotASafeCast(); 1301 } 1302 return result; 1303} 1304 1305 1306void CompilerDriver::AddCodePatch(const DexFile* dex_file, 1307 uint32_t referrer_method_idx, 1308 InvokeType referrer_invoke_type, 1309 uint32_t target_method_idx, 1310 InvokeType target_invoke_type, 1311 size_t literal_offset) { 1312 MutexLock mu(Thread::Current(), compiled_methods_lock_); 1313 code_to_patch_.push_back(new PatchInformation(dex_file, 1314 referrer_method_idx, 1315 referrer_invoke_type, 1316 target_method_idx, 1317 target_invoke_type, 1318 literal_offset)); 1319} 1320void CompilerDriver::AddMethodPatch(const DexFile* dex_file, 1321 uint32_t referrer_method_idx, 1322 InvokeType referrer_invoke_type, 1323 uint32_t target_method_idx, 1324 InvokeType target_invoke_type, 1325 size_t literal_offset) { 1326 MutexLock mu(Thread::Current(), compiled_methods_lock_); 1327 methods_to_patch_.push_back(new PatchInformation(dex_file, 1328 referrer_method_idx, 1329 referrer_invoke_type, 1330 target_method_idx, 1331 target_invoke_type, 1332 literal_offset)); 1333} 1334 1335class ParallelCompilationManager { 1336 public: 1337 typedef void Callback(const ParallelCompilationManager* manager, size_t index); 1338 1339 ParallelCompilationManager(ClassLinker* class_linker, 1340 jobject class_loader, 1341 CompilerDriver* compiler, 1342 const DexFile* dex_file, 1343 ThreadPool& thread_pool) 1344 : index_(0), 1345 class_linker_(class_linker), 1346 class_loader_(class_loader), 1347 compiler_(compiler), 1348 dex_file_(dex_file), 1349 thread_pool_(&thread_pool) {} 1350 1351 ClassLinker* GetClassLinker() const { 1352 CHECK(class_linker_ != NULL); 1353 return class_linker_; 1354 } 1355 1356 jobject GetClassLoader() const { 1357 return class_loader_; 1358 } 1359 1360 CompilerDriver* GetCompiler() const { 1361 CHECK(compiler_ != NULL); 1362 return compiler_; 1363 } 1364 1365 const DexFile* GetDexFile() const { 1366 CHECK(dex_file_ != NULL); 1367 return dex_file_; 1368 } 1369 1370 void ForAll(size_t begin, size_t end, Callback callback, size_t work_units) { 1371 Thread* self = Thread::Current(); 1372 self->AssertNoPendingException(); 1373 CHECK_GT(work_units, 0U); 1374 1375 std::vector<ForAllClosure*> closures(work_units); 1376 index_ = begin; 1377 for (size_t i = 0; i < work_units; ++i) { 1378 closures[i] = new ForAllClosure(this, end, callback); 1379 thread_pool_->AddTask(self, closures[i]); 1380 } 1381 thread_pool_->StartWorkers(self); 1382 1383 // Ensure we're suspended while we're blocked waiting for the other threads to finish (worker 1384 // thread destructor's called below perform join). 1385 CHECK_NE(self->GetState(), kRunnable); 1386 1387 // Wait for all the worker threads to finish. 1388 thread_pool_->Wait(self, true, false); 1389 } 1390 1391 size_t NextIndex() { 1392 return index_.fetch_add(1); 1393 } 1394 1395 private: 1396 class ForAllClosure : public Task { 1397 public: 1398 ForAllClosure(ParallelCompilationManager* manager, size_t end, Callback* callback) 1399 : manager_(manager), 1400 end_(end), 1401 callback_(callback) {} 1402 1403 virtual void Run(Thread* self) { 1404 while (true) { 1405 const size_t index = manager_->NextIndex(); 1406 if (UNLIKELY(index >= end_)) { 1407 break; 1408 } 1409 callback_(manager_, index); 1410 self->AssertNoPendingException(); 1411 } 1412 } 1413 1414 virtual void Finalize() { 1415 delete this; 1416 } 1417 1418 private: 1419 ParallelCompilationManager* const manager_; 1420 const size_t end_; 1421 const Callback* const callback_; 1422 }; 1423 1424 AtomicInteger index_; 1425 ClassLinker* const class_linker_; 1426 const jobject class_loader_; 1427 CompilerDriver* const compiler_; 1428 const DexFile* const dex_file_; 1429 ThreadPool* const thread_pool_; 1430 1431 DISALLOW_COPY_AND_ASSIGN(ParallelCompilationManager); 1432}; 1433 1434// Return true if the class should be skipped during compilation. We 1435// never skip classes in the boot class loader. However, if we have a 1436// non-boot class loader and we can resolve the class in the boot 1437// class loader, we do skip the class. This happens if an app bundles 1438// classes found in the boot classpath. Since at runtime we will 1439// select the class from the boot classpath, do not attempt to resolve 1440// or compile it now. 1441static bool SkipClass(ClassLinker* class_linker, jobject class_loader, const DexFile& dex_file, 1442 const DexFile::ClassDef& class_def) { 1443 if (class_loader == NULL) { 1444 return false; 1445 } 1446 const char* descriptor = dex_file.GetClassDescriptor(class_def); 1447 return class_linker->IsInBootClassPath(descriptor); 1448} 1449 1450static void ResolveClassFieldsAndMethods(const ParallelCompilationManager* manager, 1451 size_t class_def_index) 1452 LOCKS_EXCLUDED(Locks::mutator_lock_) { 1453 ATRACE_CALL(); 1454 Thread* self = Thread::Current(); 1455 jobject jclass_loader = manager->GetClassLoader(); 1456 const DexFile& dex_file = *manager->GetDexFile(); 1457 ClassLinker* class_linker = manager->GetClassLinker(); 1458 1459 // If an instance field is final then we need to have a barrier on the return, static final 1460 // fields are assigned within the lock held for class initialization. Conservatively assume 1461 // constructor barriers are always required. 1462 bool requires_constructor_barrier = true; 1463 1464 // Method and Field are the worst. We can't resolve without either 1465 // context from the code use (to disambiguate virtual vs direct 1466 // method and instance vs static field) or from class 1467 // definitions. While the compiler will resolve what it can as it 1468 // needs it, here we try to resolve fields and methods used in class 1469 // definitions, since many of them many never be referenced by 1470 // generated code. 1471 const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); 1472 if (!SkipClass(class_linker, jclass_loader, dex_file, class_def)) { 1473 // Note the class_data pointer advances through the headers, 1474 // static fields, instance fields, direct methods, and virtual 1475 // methods. 1476 const byte* class_data = dex_file.GetClassData(class_def); 1477 if (class_data == NULL) { 1478 // Empty class such as a marker interface. 1479 requires_constructor_barrier = false; 1480 } else { 1481 ScopedObjectAccess soa(self); 1482 mirror::ClassLoader* class_loader = soa.Decode<mirror::ClassLoader*>(jclass_loader); 1483 mirror::DexCache* dex_cache = class_linker->FindDexCache(dex_file); 1484 1485 // Resolve the class. 1486 mirror::Class* klass = class_linker->ResolveType(dex_file, class_def.class_idx_, dex_cache, 1487 class_loader); 1488 1489 bool resolve_fields_and_methods; 1490 if (klass == NULL) { 1491 // Class couldn't be resolved, for example, super-class is in a different dex file. Don't 1492 // attempt to resolve methods and fields when there is no declaring class. 1493 CHECK(soa.Self()->IsExceptionPending()); 1494 soa.Self()->ClearException(); 1495 resolve_fields_and_methods = false; 1496 } else { 1497 resolve_fields_and_methods = manager->GetCompiler()->IsImage(); 1498 } 1499 ClassDataItemIterator it(dex_file, class_data); 1500 while (it.HasNextStaticField()) { 1501 if (resolve_fields_and_methods) { 1502 mirror::ArtField* field = class_linker->ResolveField(dex_file, it.GetMemberIndex(), 1503 dex_cache, class_loader, true); 1504 if (field == NULL) { 1505 CHECK(soa.Self()->IsExceptionPending()); 1506 soa.Self()->ClearException(); 1507 } 1508 } 1509 it.Next(); 1510 } 1511 // We require a constructor barrier if there are final instance fields. 1512 requires_constructor_barrier = false; 1513 while (it.HasNextInstanceField()) { 1514 if ((it.GetMemberAccessFlags() & kAccFinal) != 0) { 1515 requires_constructor_barrier = true; 1516 } 1517 if (resolve_fields_and_methods) { 1518 mirror::ArtField* field = class_linker->ResolveField(dex_file, it.GetMemberIndex(), 1519 dex_cache, class_loader, false); 1520 if (field == NULL) { 1521 CHECK(soa.Self()->IsExceptionPending()); 1522 soa.Self()->ClearException(); 1523 } 1524 } 1525 it.Next(); 1526 } 1527 if (resolve_fields_and_methods) { 1528 while (it.HasNextDirectMethod()) { 1529 mirror::ArtMethod* method = class_linker->ResolveMethod(dex_file, it.GetMemberIndex(), 1530 dex_cache, class_loader, NULL, 1531 it.GetMethodInvokeType(class_def)); 1532 if (method == NULL) { 1533 CHECK(soa.Self()->IsExceptionPending()); 1534 soa.Self()->ClearException(); 1535 } 1536 it.Next(); 1537 } 1538 while (it.HasNextVirtualMethod()) { 1539 mirror::ArtMethod* method = class_linker->ResolveMethod(dex_file, it.GetMemberIndex(), 1540 dex_cache, class_loader, NULL, 1541 it.GetMethodInvokeType(class_def)); 1542 if (method == NULL) { 1543 CHECK(soa.Self()->IsExceptionPending()); 1544 soa.Self()->ClearException(); 1545 } 1546 it.Next(); 1547 } 1548 DCHECK(!it.HasNext()); 1549 } 1550 } 1551 } 1552 if (requires_constructor_barrier) { 1553 manager->GetCompiler()->AddRequiresConstructorBarrier(self, &dex_file, class_def_index); 1554 } 1555} 1556 1557static void ResolveType(const ParallelCompilationManager* manager, size_t type_idx) 1558 LOCKS_EXCLUDED(Locks::mutator_lock_) { 1559 // Class derived values are more complicated, they require the linker and loader. 1560 ScopedObjectAccess soa(Thread::Current()); 1561 ClassLinker* class_linker = manager->GetClassLinker(); 1562 const DexFile& dex_file = *manager->GetDexFile(); 1563 mirror::DexCache* dex_cache = class_linker->FindDexCache(dex_file); 1564 mirror::ClassLoader* class_loader = soa.Decode<mirror::ClassLoader*>(manager->GetClassLoader()); 1565 mirror::Class* klass = class_linker->ResolveType(dex_file, type_idx, dex_cache, class_loader); 1566 1567 if (klass == NULL) { 1568 CHECK(soa.Self()->IsExceptionPending()); 1569 mirror::Throwable* exception = soa.Self()->GetException(NULL); 1570 VLOG(compiler) << "Exception during type resolution: " << exception->Dump(); 1571 if (strcmp(ClassHelper(exception->GetClass()).GetDescriptor(), 1572 "Ljava/lang/OutOfMemoryError;") == 0) { 1573 // There's little point continuing compilation if the heap is exhausted. 1574 LOG(FATAL) << "Out of memory during type resolution for compilation"; 1575 } 1576 soa.Self()->ClearException(); 1577 } 1578} 1579 1580void CompilerDriver::ResolveDexFile(jobject class_loader, const DexFile& dex_file, 1581 ThreadPool& thread_pool, base::TimingLogger& timings) { 1582 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 1583 1584 // TODO: we could resolve strings here, although the string table is largely filled with class 1585 // and method names. 1586 1587 ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, thread_pool); 1588 if (IsImage()) { 1589 // For images we resolve all types, such as array, whereas for applications just those with 1590 // classdefs are resolved by ResolveClassFieldsAndMethods. 1591 timings.NewSplit("Resolve Types"); 1592 context.ForAll(0, dex_file.NumTypeIds(), ResolveType, thread_count_); 1593 } 1594 1595 timings.NewSplit("Resolve MethodsAndFields"); 1596 context.ForAll(0, dex_file.NumClassDefs(), ResolveClassFieldsAndMethods, thread_count_); 1597} 1598 1599void CompilerDriver::Verify(jobject class_loader, const std::vector<const DexFile*>& dex_files, 1600 ThreadPool& thread_pool, base::TimingLogger& timings) { 1601 for (size_t i = 0; i != dex_files.size(); ++i) { 1602 const DexFile* dex_file = dex_files[i]; 1603 CHECK(dex_file != NULL); 1604 VerifyDexFile(class_loader, *dex_file, thread_pool, timings); 1605 } 1606} 1607 1608static void VerifyClass(const ParallelCompilationManager* manager, size_t class_def_index) 1609 LOCKS_EXCLUDED(Locks::mutator_lock_) { 1610 ATRACE_CALL(); 1611 ScopedObjectAccess soa(Thread::Current()); 1612 const DexFile::ClassDef& class_def = manager->GetDexFile()->GetClassDef(class_def_index); 1613 const char* descriptor = manager->GetDexFile()->GetClassDescriptor(class_def); 1614 mirror::Class* klass = 1615 manager->GetClassLinker()->FindClass(descriptor, 1616 soa.Decode<mirror::ClassLoader*>(manager->GetClassLoader())); 1617 if (klass == NULL) { 1618 CHECK(soa.Self()->IsExceptionPending()); 1619 soa.Self()->ClearException(); 1620 1621 /* 1622 * At compile time, we can still structurally verify the class even if FindClass fails. 1623 * This is to ensure the class is structurally sound for compilation. An unsound class 1624 * will be rejected by the verifier and later skipped during compilation in the compiler. 1625 */ 1626 mirror::DexCache* dex_cache = manager->GetClassLinker()->FindDexCache(*manager->GetDexFile()); 1627 std::string error_msg; 1628 if (verifier::MethodVerifier::VerifyClass(manager->GetDexFile(), 1629 dex_cache, 1630 soa.Decode<mirror::ClassLoader*>(manager->GetClassLoader()), 1631 class_def_index, error_msg, true) == 1632 verifier::MethodVerifier::kHardFailure) { 1633 const DexFile::ClassDef& class_def = manager->GetDexFile()->GetClassDef(class_def_index); 1634 LOG(ERROR) << "Verification failed on class " 1635 << PrettyDescriptor(manager->GetDexFile()->GetClassDescriptor(class_def)) 1636 << " because: " << error_msg; 1637 } 1638 } else { 1639 CHECK(klass->IsResolved()) << PrettyClass(klass); 1640 manager->GetClassLinker()->VerifyClass(klass); 1641 1642 if (klass->IsErroneous()) { 1643 // ClassLinker::VerifyClass throws, which isn't useful in the compiler. 1644 CHECK(soa.Self()->IsExceptionPending()); 1645 soa.Self()->ClearException(); 1646 } 1647 1648 CHECK(klass->IsCompileTimeVerified() || klass->IsErroneous()) 1649 << PrettyDescriptor(klass) << ": state=" << klass->GetStatus(); 1650 } 1651 soa.Self()->AssertNoPendingException(); 1652} 1653 1654void CompilerDriver::VerifyDexFile(jobject class_loader, const DexFile& dex_file, 1655 ThreadPool& thread_pool, base::TimingLogger& timings) { 1656 timings.NewSplit("Verify Dex File"); 1657 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 1658 ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, thread_pool); 1659 context.ForAll(0, dex_file.NumClassDefs(), VerifyClass, thread_count_); 1660} 1661 1662static const char* class_initializer_black_list[] = { 1663 "Landroid/app/ActivityThread;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1664 "Landroid/bluetooth/BluetoothAudioGateway;", // Calls android.bluetooth.BluetoothAudioGateway.classInitNative(). 1665 "Landroid/bluetooth/HeadsetBase;", // Calls android.bluetooth.HeadsetBase.classInitNative(). 1666 "Landroid/content/res/CompatibilityInfo;", // Requires android.util.DisplayMetrics -..-> android.os.SystemProperties.native_get_int. 1667 "Landroid/content/res/CompatibilityInfo$1;", // Requires android.util.DisplayMetrics -..-> android.os.SystemProperties.native_get_int. 1668 "Landroid/content/UriMatcher;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1669 "Landroid/database/CursorWindow;", // Requires android.util.DisplayMetrics -..-> android.os.SystemProperties.native_get_int. 1670 "Landroid/database/sqlite/SQLiteConnection;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1671 "Landroid/database/sqlite/SQLiteConnection$Operation;", // Requires SimpleDateFormat -> java.util.Locale. 1672 "Landroid/database/sqlite/SQLiteDatabaseConfiguration;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1673 "Landroid/database/sqlite/SQLiteDebug;", // Calls android.util.Log.isLoggable. 1674 "Landroid/database/sqlite/SQLiteOpenHelper;", // Calls Class.getSimpleName -> Class.isAnonymousClass -> Class.getDex. 1675 "Landroid/database/sqlite/SQLiteQueryBuilder;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1676 "Landroid/drm/DrmManagerClient;", // Calls System.loadLibrary. 1677 "Landroid/graphics/drawable/AnimatedRotateDrawable;", // Sub-class of Drawable. 1678 "Landroid/graphics/drawable/AnimationDrawable;", // Sub-class of Drawable. 1679 "Landroid/graphics/drawable/BitmapDrawable;", // Sub-class of Drawable. 1680 "Landroid/graphics/drawable/ClipDrawable;", // Sub-class of Drawable. 1681 "Landroid/graphics/drawable/ColorDrawable;", // Sub-class of Drawable. 1682 "Landroid/graphics/drawable/Drawable;", // Requires android.graphics.Rect. 1683 "Landroid/graphics/drawable/DrawableContainer;", // Sub-class of Drawable. 1684 "Landroid/graphics/drawable/GradientDrawable;", // Sub-class of Drawable. 1685 "Landroid/graphics/drawable/LayerDrawable;", // Sub-class of Drawable. 1686 "Landroid/graphics/drawable/NinePatchDrawable;", // Sub-class of Drawable. 1687 "Landroid/graphics/drawable/RotateDrawable;", // Sub-class of Drawable. 1688 "Landroid/graphics/drawable/ScaleDrawable;", // Sub-class of Drawable. 1689 "Landroid/graphics/drawable/ShapeDrawable;", // Sub-class of Drawable. 1690 "Landroid/graphics/drawable/StateListDrawable;", // Sub-class of Drawable. 1691 "Landroid/graphics/drawable/TransitionDrawable;", // Sub-class of Drawable. 1692 "Landroid/graphics/Matrix;", // Calls android.graphics.Matrix.native_create. 1693 "Landroid/graphics/Matrix$1;", // Requires Matrix. 1694 "Landroid/graphics/PixelFormat;", // Calls android.graphics.PixelFormat.nativeClassInit(). 1695 "Landroid/graphics/Rect;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1696 "Landroid/graphics/SurfaceTexture;", // Calls android.graphics.SurfaceTexture.nativeClassInit(). 1697 "Landroid/graphics/Typeface;", // Calls android.graphics.Typeface.nativeCreate. 1698 "Landroid/inputmethodservice/ExtractEditText;", // Requires android.widget.TextView. 1699 "Landroid/media/AmrInputStream;", // Calls OsConstants.initConstants. 1700 "Landroid/media/CamcorderProfile;", // Calls OsConstants.initConstants. 1701 "Landroid/media/CameraProfile;", // Calls System.loadLibrary. 1702 "Landroid/media/DecoderCapabilities;", // Calls System.loadLibrary. 1703 "Landroid/media/EncoderCapabilities;", // Calls OsConstants.initConstants. 1704 "Landroid/media/ExifInterface;", // Calls OsConstants.initConstants. 1705 "Landroid/media/MediaCodec;", // Calls OsConstants.initConstants. 1706 "Landroid/media/MediaCodecList;", // Calls OsConstants.initConstants. 1707 "Landroid/media/MediaCrypto;", // Calls OsConstants.initConstants. 1708 "Landroid/media/MediaDrm;", // Calls OsConstants.initConstants. 1709 "Landroid/media/MediaExtractor;", // Calls OsConstants.initConstants. 1710 "Landroid/media/MediaFile;", // Requires DecoderCapabilities. 1711 "Landroid/media/MediaMetadataRetriever;", // Calls OsConstants.initConstants. 1712 "Landroid/media/MediaMuxer;", // Calls OsConstants.initConstants. 1713 "Landroid/media/MediaPlayer;", // Calls System.loadLibrary. 1714 "Landroid/media/MediaRecorder;", // Calls System.loadLibrary. 1715 "Landroid/media/MediaScanner;", // Calls System.loadLibrary. 1716 "Landroid/media/ResampleInputStream;", // Calls OsConstants.initConstants. 1717 "Landroid/media/SoundPool;", // Calls OsConstants.initConstants. 1718 "Landroid/media/videoeditor/MediaArtistNativeHelper;", // Calls OsConstants.initConstants. 1719 "Landroid/media/videoeditor/VideoEditorProfile;", // Calls OsConstants.initConstants. 1720 "Landroid/mtp/MtpDatabase;", // Calls OsConstants.initConstants. 1721 "Landroid/mtp/MtpDevice;", // Calls OsConstants.initConstants. 1722 "Landroid/mtp/MtpServer;", // Calls OsConstants.initConstants. 1723 "Landroid/net/NetworkInfo;", // Calls java.util.EnumMap.<init> -> java.lang.Enum.getSharedConstants -> System.identityHashCode. 1724 "Landroid/net/Proxy;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1725 "Landroid/net/SSLCertificateSocketFactory;", // Requires javax.net.ssl.HttpsURLConnection. 1726 "Landroid/net/Uri$AbstractHierarchicalUri;", // Requires Uri. 1727 "Landroid/net/Uri$HierarchicalUri;", // Requires Uri. 1728 "Landroid/net/Uri$OpaqueUri;", // Requires Uri. 1729 "Landroid/net/Uri$StringUri;", // Requires Uri. 1730 "Landroid/net/Uri;", // Calls Class.getSimpleName -> Class.isAnonymousClass -> Class.getDex. 1731 "Landroid/net/WebAddress;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1732 "Landroid/net/wifi/WifiNative;", // Calls new LocalLog -> new Time -> TimeZone -> Pattern.compile. 1733 "Landroid/nfc/NdefRecord;", // Calls String.getBytes -> java.nio.charset.Charset. 1734 "Landroid/opengl/EGL14;", // Calls android.opengl.EGL14._nativeClassInit. 1735 "Landroid/opengl/GLES10;", // Calls android.opengl.GLES10._nativeClassInit. 1736 "Landroid/opengl/GLES10Ext;", // Calls android.opengl.GLES10Ext._nativeClassInit. 1737 "Landroid/opengl/GLES11;", // Requires GLES10. 1738 "Landroid/opengl/GLES11Ext;", // Calls android.opengl.GLES11Ext._nativeClassInit. 1739 "Landroid/opengl/GLES20;", // Calls android.opengl.GLES20._nativeClassInit. 1740 "Landroid/opengl/GLUtils;", // Calls android.opengl.GLUtils.nativeClassInit. 1741 "Landroid/os/Build;", // Calls -..-> android.os.SystemProperties.native_get. 1742 "Landroid/os/Build$VERSION;", // Requires Build. 1743 "Landroid/os/Debug;", // Requires android.os.Environment. 1744 "Landroid/os/Environment;", // Calls System.getenv. 1745 "Landroid/os/FileUtils;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1746 "Landroid/os/StrictMode;", // Calls android.util.Log.isLoggable. 1747 "Landroid/os/StrictMode$VmPolicy;", // Requires StrictMode. 1748 "Landroid/os/Trace;", // Calls android.os.Trace.nativeGetEnabledTags. 1749 "Landroid/os/UEventObserver;", // Calls Class.getSimpleName -> Class.isAnonymousClass -> Class.getDex. 1750 "Landroid/provider/ContactsContract;", // Calls OsConstants.initConstants. 1751 "Landroid/provider/Settings$Global;", // Calls OsConstants.initConstants. 1752 "Landroid/provider/Settings$Secure;", // Requires android.net.Uri. 1753 "Landroid/provider/Settings$System;", // Requires android.net.Uri. 1754 "Landroid/renderscript/RenderScript;", // Calls System.loadLibrary. 1755 "Landroid/server/BluetoothService;", // Calls android.server.BluetoothService.classInitNative. 1756 "Landroid/server/BluetoothEventLoop;", // Calls android.server.BluetoothEventLoop.classInitNative. 1757 "Landroid/telephony/PhoneNumberUtils;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1758 "Landroid/telephony/TelephonyManager;", // Calls OsConstants.initConstants. 1759 "Landroid/text/AutoText;", // Requires android.util.DisplayMetrics -..-> android.os.SystemProperties.native_get_int. 1760 "Landroid/text/Layout;", // Calls com.android.internal.util.ArrayUtils.emptyArray -> System.identityHashCode. 1761 "Landroid/text/BoringLayout;", // Requires Layout. 1762 "Landroid/text/DynamicLayout;", // Requires Layout. 1763 "Landroid/text/Html$HtmlParser;", // Calls -..-> String.toLowerCase -> java.util.Locale. 1764 "Landroid/text/StaticLayout;", // Requires Layout. 1765 "Landroid/text/TextUtils;", // Requires android.util.DisplayMetrics. 1766 "Landroid/util/DisplayMetrics;", // Calls SystemProperties.native_get_int. 1767 "Landroid/util/Patterns;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1768 "Landroid/view/Choreographer;", // Calls SystemProperties.native_get_boolean. 1769 "Landroid/util/Patterns;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1770 "Landroid/view/GLES20Canvas;", // Calls GLES20Canvas.nIsAvailable(). 1771 "Landroid/view/GLES20RecordingCanvas;", // Requires android.view.GLES20Canvas. 1772 "Landroid/view/GestureDetector;", // Calls android.view.GLES20Canvas.nIsAvailable. 1773 "Landroid/view/HardwareRenderer$Gl20Renderer;", // Requires SystemProperties.native_get. 1774 "Landroid/view/HardwareRenderer$GlRenderer;", // Requires SystemProperties.native_get. 1775 "Landroid/view/InputEventConsistencyVerifier;", // Requires android.os.Build. 1776 "Landroid/view/Surface;", // Requires SystemProperties.native_get. 1777 "Landroid/view/SurfaceControl;", // Calls OsConstants.initConstants. 1778 "Landroid/view/animation/AlphaAnimation;", // Requires Animation. 1779 "Landroid/view/animation/Animation;", // Calls SystemProperties.native_get_boolean. 1780 "Landroid/view/animation/AnimationSet;", // Calls OsConstants.initConstants. 1781 "Landroid/view/textservice/SpellCheckerSubtype;", // Calls Class.getDex(). 1782 "Landroid/webkit/JniUtil;", // Calls System.loadLibrary. 1783 "Landroid/webkit/PluginManager;", // // Calls OsConstants.initConstants. 1784 "Landroid/webkit/WebViewCore;", // Calls System.loadLibrary. 1785 "Landroid/webkit/WebViewFactory;", // Calls -..-> android.os.SystemProperties.native_get. 1786 "Landroid/webkit/WebViewFactory$Preloader;", // Calls to Class.forName. 1787 "Landroid/webkit/WebViewInputDispatcher;", // Calls Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1788 "Landroid/webkit/URLUtil;", // Calls Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1789 "Landroid/widget/AutoCompleteTextView;", // Requires TextView. 1790 "Landroid/widget/Button;", // Requires TextView. 1791 "Landroid/widget/CheckBox;", // Requires TextView. 1792 "Landroid/widget/CheckedTextView;", // Requires TextView. 1793 "Landroid/widget/CompoundButton;", // Requires TextView. 1794 "Landroid/widget/EditText;", // Requires TextView. 1795 "Landroid/widget/NumberPicker;", // Requires java.util.Locale. 1796 "Landroid/widget/ScrollBarDrawable;", // Sub-class of Drawable. 1797 "Landroid/widget/SearchView$SearchAutoComplete;", // Requires TextView. 1798 "Landroid/widget/Switch;", // Requires TextView. 1799 "Landroid/widget/TextView;", // Calls Paint.<init> -> Paint.native_init. 1800 "Lcom/android/i18n/phonenumbers/AsYouTypeFormatter;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1801 "Lcom/android/i18n/phonenumbers/MetadataManager;", // Calls OsConstants.initConstants. 1802 "Lcom/android/i18n/phonenumbers/PhoneNumberMatcher;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1803 "Lcom/android/i18n/phonenumbers/PhoneNumberUtil;", // Requires java.util.logging.LogManager. 1804 "Lcom/android/i18n/phonenumbers/geocoding/AreaCodeMap;", // Calls OsConstants.initConstants. 1805 "Lcom/android/i18n/phonenumbers/geocoding/PhoneNumberOfflineGeocoder;", // Calls OsConstants.initConstants. 1806 "Lcom/android/internal/os/SamplingProfilerIntegration;", // Calls SystemProperties.native_get_int. 1807 "Lcom/android/internal/policy/impl/PhoneWindow;", // Calls android.os.Binder.init. 1808 "Lcom/android/internal/view/menu/ActionMenuItemView;", // Requires TextView. 1809 "Lcom/android/internal/widget/DialogTitle;", // Requires TextView. 1810 "Lcom/android/org/bouncycastle/asn1/StreamUtil;", // Calls Runtime.getRuntime().maxMemory(). 1811 "Lcom/android/org/bouncycastle/asn1/pkcs/MacData;", // Calls native ... -> java.math.NativeBN.BN_new(). 1812 "Lcom/android/org/bouncycastle/asn1/pkcs/RSASSAPSSparams;", // Calls native ... -> java.math.NativeBN.BN_new(). 1813 "Lcom/android/org/bouncycastle/asn1/cms/SignedData;", // Calls native ... -> java.math.NativeBN.BN_new(). 1814 "Lcom/android/org/bouncycastle/asn1/x509/GeneralSubtree;", // Calls native ... -> java.math.NativeBN.BN_new(). 1815 "Lcom/android/org/bouncycastle/asn1/x9/X9ECParameters;", // Calls native ... -> java.math.NativeBN.BN_new(). 1816 "Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$MD5;", // Requires com.android.org.conscrypt.NativeCrypto. 1817 "Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$SHA1;", // Requires com.android.org.conscrypt.NativeCrypto. 1818 "Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$SHA256;", // Requires com.android.org.conscrypt.NativeCrypto. 1819 "Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$SHA384;", // Requires com.android.org.conscrypt.NativeCrypto. 1820 "Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$SHA512;", // Requires com.android.org.conscrypt.NativeCrypto. 1821 "Lcom/android/org/bouncycastle/crypto/engines/RSABlindedEngine;", // Calls native ... -> java.math.NativeBN.BN_new(). 1822 "Lcom/android/org/bouncycastle/crypto/generators/DHKeyGeneratorHelper;", // Calls native ... -> java.math.NativeBN.BN_new(). 1823 "Lcom/android/org/bouncycastle/crypto/generators/DHParametersGenerator;", // Calls native ... -> java.math.NativeBN.BN_new(). 1824 "Lcom/android/org/bouncycastle/crypto/generators/DHParametersHelper;", // Calls System.getenv -> OsConstants.initConstants. 1825 "Lcom/android/org/bouncycastle/crypto/generators/DSAKeyPairGenerator;", // Calls native ... -> java.math.NativeBN.BN_new(). 1826 "Lcom/android/org/bouncycastle/crypto/generators/DSAParametersGenerator;", // Calls native ... -> java.math.NativeBN.BN_new(). 1827 "Lcom/android/org/bouncycastle/crypto/generators/RSAKeyPairGenerator;", // Calls native ... -> java.math.NativeBN.BN_new(). 1828 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;", // Calls OsConstants.initConstants. 1829 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/dsa/KeyPairGeneratorSpi;", // Calls OsConstants.initConstants. 1830 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$EC;", // Calls OsConstants.initConstants. 1831 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$ECDH;", // Calls OsConstants.initConstants. 1832 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$ECDHC;", // Calls OsConstants.initConstants. 1833 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$ECDSA;", // Calls OsConstants.initConstants. 1834 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$ECMQV;", // Calls OsConstants.initConstants. 1835 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi;", // Calls OsConstants.initConstants. 1836 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/rsa/BCRSAPrivateCrtKey;", // Calls native ... -> java.math.NativeBN.BN_new(). 1837 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/rsa/BCRSAPrivateKey;", // Calls native ... -> java.math.NativeBN.BN_new(). 1838 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/rsa/KeyPairGeneratorSpi;", // Calls OsConstants.initConstants. 1839 "Lcom/android/org/bouncycastle/jcajce/provider/keystore/pkcs12/PKCS12KeyStoreSpi$BCPKCS12KeyStore;", // Calls Thread.currentThread. 1840 "Lcom/android/org/bouncycastle/jcajce/provider/keystore/pkcs12/PKCS12KeyStoreSpi;", // Calls Thread.currentThread. 1841 "Lcom/android/org/bouncycastle/jce/PKCS10CertificationRequest;", // Calls native ... -> java.math.NativeBN.BN_new(). 1842 "Lcom/android/org/bouncycastle/jce/provider/CertBlacklist;", // Calls System.getenv -> OsConstants.initConstants. 1843 "Lcom/android/org/bouncycastle/jce/provider/JCERSAPrivateCrtKey;", // Calls native ... -> java.math.NativeBN.BN_new(). 1844 "Lcom/android/org/bouncycastle/jce/provider/JCERSAPrivateKey;", // Calls native ... -> java.math.NativeBN.BN_new(). 1845 "Lcom/android/org/bouncycastle/jce/provider/PKIXCertPathValidatorSpi;", // Calls System.getenv -> OsConstants.initConstants. 1846 "Lcom/android/org/bouncycastle/math/ec/ECConstants;", // Calls native ... -> java.math.NativeBN.BN_new(). 1847 "Lcom/android/org/bouncycastle/math/ec/Tnaf;", // Calls native ... -> java.math.NativeBN.BN_new(). 1848 "Lcom/android/org/bouncycastle/util/BigIntegers;", // Calls native ... -> java.math.NativeBN.BN_new(). 1849 "Lcom/android/org/bouncycastle/x509/X509Util;", // Calls native ... -> java.math.NativeBN.BN_new(). 1850 "Lcom/android/org/conscrypt/CipherSuite;", // Calls OsConstants.initConstants. 1851 "Lcom/android/org/conscrypt/FileClientSessionCache$CacheFile;", // Calls OsConstants.initConstants. 1852 "Lcom/android/org/conscrypt/HandshakeIODataStream;", // Calls OsConstants.initConstants. 1853 "Lcom/android/org/conscrypt/Logger;", // Calls OsConstants.initConstants. 1854 "Lcom/android/org/conscrypt/NativeCrypto;", // Calls native NativeCrypto.clinit(). 1855 "Lcom/android/org/conscrypt/OpenSSLECKeyPairGenerator;", // Calls OsConstants.initConstants. 1856 "Lcom/android/org/conscrypt/OpenSSLEngine;", // Requires com.android.org.conscrypt.NativeCrypto. 1857 "Lcom/android/org/conscrypt/OpenSSLMac$HmacMD5;", // Calls native NativeCrypto.clinit(). 1858 "Lcom/android/org/conscrypt/OpenSSLMac$HmacSHA1;", // Calls native NativeCrypto.clinit(). 1859 "Lcom/android/org/conscrypt/OpenSSLMac$HmacSHA256;", // Calls native NativeCrypto.clinit(). 1860 "Lcom/android/org/conscrypt/OpenSSLMac$HmacSHA384;", // Calls native NativeCrypto.clinit(). 1861 "Lcom/android/org/conscrypt/OpenSSLMac$HmacSHA512;", // Calls native NativeCrypto.clinit(). 1862 "Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$MD5;", // Requires com.android.org.conscrypt.NativeCrypto. 1863 "Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$SHA1;", // Requires com.android.org.conscrypt.NativeCrypto. 1864 "Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$SHA256;", // Requires com.android.org.conscrypt.NativeCrypto. 1865 "Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$SHA384;", // Requires com.android.org.conscrypt.NativeCrypto. 1866 "Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$SHA512;", // Requires com.android.org.conscrypt.NativeCrypto. 1867 "Lcom/android/org/conscrypt/OpenSSLX509CertPath;", // Calls OsConstants.initConstants. 1868 "Lcom/android/org/conscrypt/OpenSSLX509CertificateFactory;", // Calls OsConstants.initConstants. 1869 "Lcom/android/org/conscrypt/PRF;", // Calls OsConstants.initConstants. 1870 "Lcom/android/org/conscrypt/SSLSessionImpl;", // Calls OsConstants.initConstants. 1871 "Lcom/android/org/conscrypt/TrustedCertificateStore;", // Calls System.getenv -> OsConstants.initConstants. 1872 "Lcom/android/okhttp/ConnectionPool;", // Calls OsConstants.initConstants. 1873 "Lcom/android/okhttp/OkHttpClient;", // Calls OsConstants.initConstants. 1874 "Lcom/android/okhttp/internal/DiskLruCache;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1875 "Lcom/android/okhttp/internal/Util;", // Calls OsConstants.initConstants. 1876 "Lcom/android/okhttp/internal/http/HttpsURLConnectionImpl;", // Calls VMClassLoader.getBootClassPathSize. 1877 "Lcom/android/okhttp/internal/spdy/SpdyConnection;", // Calls OsConstants.initConstants. 1878 "Lcom/android/okhttp/internal/spdy/SpdyReader;", // Calls OsConstants.initConstants. 1879 "Lcom/android/okhttp/internal/tls/OkHostnameVerifier;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1880 "Lcom/google/android/gles_jni/EGLContextImpl;", // Calls com.google.android.gles_jni.EGLImpl._nativeClassInit. 1881 "Lcom/google/android/gles_jni/EGLImpl;", // Calls com.google.android.gles_jni.EGLImpl._nativeClassInit. 1882 "Lcom/google/android/gles_jni/GLImpl;", // Calls com.google.android.gles_jni.GLImpl._nativeClassInit. 1883 "Lgov/nist/core/GenericObject;", // Calls OsConstants.initConstants. 1884 "Lgov/nist/core/Host;", // Calls OsConstants.initConstants. 1885 "Lgov/nist/core/HostPort;", // Calls OsConstants.initConstants. 1886 "Lgov/nist/core/NameValue;", // Calls OsConstants.initConstants. 1887 "Lgov/nist/core/net/DefaultNetworkLayer;", // Calls OsConstants.initConstants. 1888 "Lgov/nist/javax/sip/Utils;", // Calls OsConstants.initConstants. 1889 "Lgov/nist/javax/sip/address/AddressImpl;", // Calls OsConstants.initConstants. 1890 "Lgov/nist/javax/sip/address/Authority;", // Calls OsConstants.initConstants. 1891 "Lgov/nist/javax/sip/address/GenericURI;", // Calls OsConstants.initConstants. 1892 "Lgov/nist/javax/sip/address/NetObject;", // Calls OsConstants.initConstants. 1893 "Lgov/nist/javax/sip/address/SipUri;", // Calls OsConstants.initConstants. 1894 "Lgov/nist/javax/sip/address/TelephoneNumber;", // Calls OsConstants.initConstants. 1895 "Lgov/nist/javax/sip/address/UserInfo;", // Calls OsConstants.initConstants. 1896 "Lgov/nist/javax/sip/header/Accept;", // Calls OsConstants.initConstants. 1897 "Lgov/nist/javax/sip/header/AcceptEncoding;", // Calls OsConstants.initConstants. 1898 "Lgov/nist/javax/sip/header/AcceptLanguage;", // Calls OsConstants.initConstants. 1899 "Lgov/nist/javax/sip/header/AddressParametersHeader;", // Calls OsConstants.initConstants. 1900 "Lgov/nist/javax/sip/header/AlertInfoList;", // Calls OsConstants.initConstants. 1901 "Lgov/nist/javax/sip/header/AllowEvents;", // Calls OsConstants.initConstants. 1902 "Lgov/nist/javax/sip/header/AllowEventsList;", // Calls OsConstants.initConstants. 1903 "Lgov/nist/javax/sip/header/AuthenticationInfo;", // Calls OsConstants.initConstants. 1904 "Lgov/nist/javax/sip/header/Authorization;", // Calls OsConstants.initConstants. 1905 "Lgov/nist/javax/sip/header/CSeq;", // Calls OsConstants.initConstants. 1906 "Lgov/nist/javax/sip/header/CallIdentifier;", // Calls OsConstants.initConstants. 1907 "Lgov/nist/javax/sip/header/Challenge;", // Calls OsConstants.initConstants. 1908 "Lgov/nist/javax/sip/header/ContactList;", // Calls OsConstants.initConstants. 1909 "Lgov/nist/javax/sip/header/ContentEncoding;", // Calls OsConstants.initConstants. 1910 "Lgov/nist/javax/sip/header/ContentEncodingList;", // Calls OsConstants.initConstants. 1911 "Lgov/nist/javax/sip/header/ContentLanguageList;", // Calls OsConstants.initConstants. 1912 "Lgov/nist/javax/sip/header/ContentType;", // Calls OsConstants.initConstants. 1913 "Lgov/nist/javax/sip/header/Credentials;", // Calls OsConstants.initConstants. 1914 "Lgov/nist/javax/sip/header/ErrorInfoList;", // Calls OsConstants.initConstants. 1915 "Lgov/nist/javax/sip/header/Expires;", // Calls OsConstants.initConstants. 1916 "Lgov/nist/javax/sip/header/From;", // Calls OsConstants.initConstants. 1917 "Lgov/nist/javax/sip/header/MimeVersion;", // Calls OsConstants.initConstants. 1918 "Lgov/nist/javax/sip/header/NameMap;", // Calls OsConstants.initConstants. 1919 "Lgov/nist/javax/sip/header/Priority;", // Calls OsConstants.initConstants. 1920 "Lgov/nist/javax/sip/header/Protocol;", // Calls OsConstants.initConstants. 1921 "Lgov/nist/javax/sip/header/ProxyAuthenticate;", // Calls OsConstants.initConstants. 1922 "Lgov/nist/javax/sip/header/ProxyAuthenticateList;", // Calls OsConstants.initConstants. 1923 "Lgov/nist/javax/sip/header/ProxyAuthorizationList;", // Calls OsConstants.initConstants. 1924 "Lgov/nist/javax/sip/header/ProxyRequire;", // Calls OsConstants.initConstants. 1925 "Lgov/nist/javax/sip/header/ProxyRequireList;", // Calls OsConstants.initConstants. 1926 "Lgov/nist/javax/sip/header/RSeq;", // Calls OsConstants.initConstants. 1927 "Lgov/nist/javax/sip/header/RecordRoute;", // Calls OsConstants.initConstants. 1928 "Lgov/nist/javax/sip/header/ReferTo;", // Calls OsConstants.initConstants. 1929 "Lgov/nist/javax/sip/header/RequestLine;", // Calls OsConstants.initConstants. 1930 "Lgov/nist/javax/sip/header/Require;", // Calls OsConstants.initConstants. 1931 "Lgov/nist/javax/sip/header/RetryAfter;", // Calls OsConstants.initConstants. 1932 "Lgov/nist/javax/sip/header/SIPETag;", // Calls OsConstants.initConstants. 1933 "Lgov/nist/javax/sip/header/SIPHeader;", // Calls OsConstants.initConstants. 1934 "Lgov/nist/javax/sip/header/SIPHeaderNamesCache;", // Calls OsConstants.initConstants. 1935 "Lgov/nist/javax/sip/header/StatusLine;", // Calls OsConstants.initConstants. 1936 "Lgov/nist/javax/sip/header/SubscriptionState;", // Calls OsConstants.initConstants. 1937 "Lgov/nist/javax/sip/header/TimeStamp;", // Calls OsConstants.initConstants. 1938 "Lgov/nist/javax/sip/header/UserAgent;", // Calls OsConstants.initConstants. 1939 "Lgov/nist/javax/sip/header/Unsupported;", // Calls OsConstants.initConstants. 1940 "Lgov/nist/javax/sip/header/Warning;", // Calls OsConstants.initConstants. 1941 "Lgov/nist/javax/sip/header/ViaList;", // Calls OsConstants.initConstants. 1942 "Lgov/nist/javax/sip/header/extensions/Join;", // Calls OsConstants.initConstants. 1943 "Lgov/nist/javax/sip/header/extensions/References;", // Calls OsConstants.initConstants. 1944 "Lgov/nist/javax/sip/header/extensions/Replaces;", // Calls OsConstants.initConstants. 1945 "Lgov/nist/javax/sip/header/ims/PAccessNetworkInfo;", // Calls OsConstants.initConstants. 1946 "Lgov/nist/javax/sip/header/ims/PAssertedIdentity;", // Calls OsConstants.initConstants. 1947 "Lgov/nist/javax/sip/header/ims/PAssertedIdentityList;", // Calls OsConstants.initConstants. 1948 "Lgov/nist/javax/sip/header/ims/PAssociatedURI;", // Calls OsConstants.initConstants. 1949 "Lgov/nist/javax/sip/header/ims/PCalledPartyID;", // Calls OsConstants.initConstants. 1950 "Lgov/nist/javax/sip/header/ims/PChargingVector;", // Calls OsConstants.initConstants. 1951 "Lgov/nist/javax/sip/header/ims/PPreferredIdentity;", // Calls OsConstants.initConstants. 1952 "Lgov/nist/javax/sip/header/ims/PVisitedNetworkIDList;", // Calls OsConstants.initConstants. 1953 "Lgov/nist/javax/sip/header/ims/PathList;", // Calls OsConstants.initConstants. 1954 "Lgov/nist/javax/sip/header/ims/SecurityAgree;", // Calls OsConstants.initConstants. 1955 "Lgov/nist/javax/sip/header/ims/SecurityClient;", // Calls OsConstants.initConstants. 1956 "Lgov/nist/javax/sip/header/ims/ServiceRoute;", // Calls OsConstants.initConstants. 1957 "Ljava/io/Console;", // Has FileDescriptor(s). 1958 "Ljava/io/File;", // Calls to Random.<init> -> System.currentTimeMillis -> OsConstants.initConstants. 1959 "Ljava/io/FileDescriptor;", // Requires libcore.io.OsConstants. 1960 "Ljava/io/ObjectInputStream;", // Requires java.lang.ClassLoader$SystemClassLoader. 1961 "Ljava/io/ObjectStreamClass;", // Calls to Class.forName -> java.io.FileDescriptor. 1962 "Ljava/io/ObjectStreamConstants;", // Instance of non-image class SerializablePermission. 1963 "Ljava/lang/ClassLoader$SystemClassLoader;", // Calls System.getProperty -> OsConstants.initConstants. 1964 "Ljava/lang/HexStringParser;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1965 "Ljava/lang/ProcessManager;", // Calls Thread.currentThread. 1966 "Ljava/lang/Runtime;", // Calls System.getProperty -> OsConstants.initConstants. 1967 "Ljava/lang/System;", // Calls OsConstants.initConstants. 1968 "Ljava/math/BigDecimal;", // Calls native ... -> java.math.NativeBN.BN_new(). 1969 "Ljava/math/BigInteger;", // Calls native ... -> java.math.NativeBN.BN_new(). 1970 "Ljava/math/Primality;", // Calls native ... -> java.math.NativeBN.BN_new(). 1971 "Ljava/math/Multiplication;", // Calls native ... -> java.math.NativeBN.BN_new(). 1972 "Ljava/net/InetAddress;", // Requires libcore.io.OsConstants. 1973 "Ljava/net/Inet4Address;", // Sub-class of InetAddress. 1974 "Ljava/net/Inet6Address;", // Sub-class of InetAddress. 1975 "Ljava/net/InetUnixAddress;", // Sub-class of InetAddress. 1976 "Ljava/nio/charset/Charset;", // Calls Charset.getDefaultCharset -> System.getProperty -> OsConstants.initConstants. 1977 "Ljava/nio/charset/CharsetICU;", // Sub-class of Charset. 1978 "Ljava/nio/charset/Charsets;", // Calls Charset.forName. 1979 "Ljava/nio/charset/StandardCharsets;", // Calls OsConstants.initConstants. 1980 "Ljava/security/AlgorithmParameterGenerator;", // Calls OsConstants.initConstants. 1981 "Ljava/security/KeyPairGenerator$KeyPairGeneratorImpl;", // Calls OsConstants.initConstants. 1982 "Ljava/security/KeyPairGenerator;", // Calls OsConstants.initConstants. 1983 "Ljava/security/Security;", // Tries to do disk IO for "security.properties". 1984 "Ljava/security/spec/RSAKeyGenParameterSpec;", // java.math.NativeBN.BN_new() 1985 "Ljava/sql/Date;", // Calls OsConstants.initConstants. 1986 "Ljava/sql/DriverManager;", // Calls OsConstants.initConstants. 1987 "Ljava/sql/Time;", // Calls OsConstants.initConstants. 1988 "Ljava/sql/Timestamp;", // Calls OsConstants.initConstants. 1989 "Ljava/util/Date;", // Calls Date.<init> -> System.currentTimeMillis -> OsConstants.initConstants. 1990 "Ljava/util/ListResourceBundle;", // Calls OsConstants.initConstants. 1991 "Ljava/util/Locale;", // Calls System.getProperty -> OsConstants.initConstants. 1992 "Ljava/util/PropertyResourceBundle;", // Calls OsConstants.initConstants. 1993 "Ljava/util/ResourceBundle;", // Calls OsConstants.initConstants. 1994 "Ljava/util/ResourceBundle$MissingBundle;", // Calls OsConstants.initConstants. 1995 "Ljava/util/Scanner;", // regex.Pattern.compileImpl. 1996 "Ljava/util/SimpleTimeZone;", // Sub-class of TimeZone. 1997 "Ljava/util/TimeZone;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1998 "Ljava/util/concurrent/ConcurrentHashMap;", // Calls Runtime.getRuntime().availableProcessors(). 1999 "Ljava/util/concurrent/ConcurrentHashMap$Segment;", // Calls Runtime.getRuntime().availableProcessors(). 2000 "Ljava/util/concurrent/ConcurrentSkipListMap;", // Calls Random() -> OsConstants.initConstants. 2001 "Ljava/util/concurrent/Exchanger;", // Calls Runtime.getRuntime().availableProcessors(). 2002 "Ljava/util/concurrent/ForkJoinPool;", // Makes a thread pool ..-> calls OsConstants.initConstants. 2003 "Ljava/util/concurrent/LinkedTransferQueue;", // Calls Runtime.getRuntime().availableProcessors(). 2004 "Ljava/util/concurrent/Phaser;", // Calls Runtime.getRuntime().availableProcessors(). 2005 "Ljava/util/concurrent/ScheduledThreadPoolExecutor;", // Calls AtomicLong.VMSupportsCS8() 2006 "Ljava/util/concurrent/SynchronousQueue;", // Calls Runtime.getRuntime().availableProcessors(). 2007 "Ljava/util/concurrent/atomic/AtomicLong;", // Calls AtomicLong.VMSupportsCS8() 2008 "Ljava/util/logging/LogManager;", // Calls System.getProperty -> OsConstants.initConstants. 2009 "Ljava/util/prefs/AbstractPreferences;", // Calls OsConstants.initConstants. 2010 "Ljava/util/prefs/FilePreferencesImpl;", // Calls OsConstants.initConstants. 2011 "Ljava/util/prefs/FilePreferencesFactoryImpl;", // Calls OsConstants.initConstants. 2012 "Ljava/util/prefs/Preferences;", // Calls OsConstants.initConstants. 2013 "Ljavax/crypto/KeyAgreement;", // Calls OsConstants.initConstants. 2014 "Ljavax/crypto/KeyGenerator;", // Calls OsConstants.initConstants. 2015 "Ljavax/security/cert/X509Certificate;", // Calls VMClassLoader.getBootClassPathSize. 2016 "Ljavax/security/cert/X509Certificate$1;", // Calls VMClassLoader.getBootClassPathSize. 2017 "Ljavax/microedition/khronos/egl/EGL10;", // Requires EGLContext. 2018 "Ljavax/microedition/khronos/egl/EGLContext;", // Requires com.google.android.gles_jni.EGLImpl. 2019 "Ljavax/xml/datatype/DatatypeConstants;", // Calls OsConstants.initConstants. 2020 "Ljavax/xml/datatype/FactoryFinder;", // Calls OsConstants.initConstants. 2021 "Ljavax/xml/namespace/QName;", // Calls OsConstants.initConstants. 2022 "Ljavax/xml/validation/SchemaFactoryFinder;", // Calls OsConstants.initConstants. 2023 "Ljavax/xml/xpath/XPathConstants;", // Calls OsConstants.initConstants. 2024 "Ljavax/xml/xpath/XPathFactoryFinder;", // Calls OsConstants.initConstants. 2025 "Llibcore/icu/LocaleData;", // Requires java.util.Locale. 2026 "Llibcore/icu/TimeZoneNames;", // Requires java.util.TimeZone. 2027 "Llibcore/io/IoUtils;", // Calls Random.<init> -> System.currentTimeMillis -> FileDescriptor -> OsConstants.initConstants. 2028 "Llibcore/io/OsConstants;", // Platform specific. 2029 "Llibcore/net/MimeUtils;", // Calls libcore.net.MimeUtils.getContentTypesPropertiesStream -> System.getProperty. 2030 "Llibcore/reflect/Types;", // Calls OsConstants.initConstants. 2031 "Llibcore/util/ZoneInfo;", // Sub-class of TimeZone. 2032 "Llibcore/util/ZoneInfoDB;", // Calls System.getenv -> OsConstants.initConstants. 2033 "Lorg/apache/commons/logging/LogFactory;", // Calls System.getProperty. 2034 "Lorg/apache/commons/logging/impl/LogFactoryImpl;", // Calls OsConstants.initConstants. 2035 "Lorg/apache/harmony/security/fortress/Services;", // Calls ClassLoader.getSystemClassLoader -> System.getProperty. 2036 "Lorg/apache/harmony/security/provider/cert/X509CertFactoryImpl;", // Requires java.nio.charsets.Charsets. 2037 "Lorg/apache/harmony/security/provider/crypto/RandomBitsSupplier;", // Requires java.io.File. 2038 "Lorg/apache/harmony/security/utils/AlgNameMapper;", // Requires java.util.Locale. 2039 "Lorg/apache/harmony/security/pkcs10/CertificationRequest;", // Calls Thread.currentThread. 2040 "Lorg/apache/harmony/security/pkcs10/CertificationRequestInfo;", // Calls Thread.currentThread. 2041 "Lorg/apache/harmony/security/pkcs7/AuthenticatedAttributes;", // Calls Thread.currentThread. 2042 "Lorg/apache/harmony/security/pkcs7/SignedData;", // Calls Thread.currentThread. 2043 "Lorg/apache/harmony/security/pkcs7/SignerInfo;", // Calls Thread.currentThread. 2044 "Lorg/apache/harmony/security/pkcs8/PrivateKeyInfo;", // Calls Thread.currentThread. 2045 "Lorg/apache/harmony/security/provider/crypto/SHA1PRNG_SecureRandomImpl;", // Calls OsConstants.initConstants. 2046 "Lorg/apache/harmony/security/x501/AttributeTypeAndValue;", // Calls IntegralToString.convertInt -> Thread.currentThread. 2047 "Lorg/apache/harmony/security/x501/DirectoryString;", // Requires BigInteger. 2048 "Lorg/apache/harmony/security/x501/Name;", // Requires org.apache.harmony.security.x501.AttributeTypeAndValue. 2049 "Lorg/apache/harmony/security/x509/AccessDescription;", // Calls Thread.currentThread. 2050 "Lorg/apache/harmony/security/x509/AuthorityKeyIdentifier;", // Calls Thread.currentThread. 2051 "Lorg/apache/harmony/security/x509/CRLDistributionPoints;", // Calls Thread.currentThread. 2052 "Lorg/apache/harmony/security/x509/Certificate;", // Requires org.apache.harmony.security.x509.TBSCertificate. 2053 "Lorg/apache/harmony/security/x509/CertificateIssuer;", // Calls Thread.currentThread. 2054 "Lorg/apache/harmony/security/x509/CertificateList;", // Calls Thread.currentThread. 2055 "Lorg/apache/harmony/security/x509/DistributionPoint;", // Calls Thread.currentThread. 2056 "Lorg/apache/harmony/security/x509/DistributionPointName;", // Calls Thread.currentThread. 2057 "Lorg/apache/harmony/security/x509/EDIPartyName;", // Calls native ... -> java.math.NativeBN.BN_new(). 2058 "Lorg/apache/harmony/security/x509/GeneralName;", // Requires org.apache.harmony.security.x501.Name. 2059 "Lorg/apache/harmony/security/x509/GeneralNames;", // Requires GeneralName. 2060 "Lorg/apache/harmony/security/x509/GeneralSubtree;", // Calls Thread.currentThread. 2061 "Lorg/apache/harmony/security/x509/GeneralSubtrees;", // Calls Thread.currentThread. 2062 "Lorg/apache/harmony/security/x509/InfoAccessSyntax;", // Calls Thread.currentThread. 2063 "Lorg/apache/harmony/security/x509/IssuingDistributionPoint;", // Calls Thread.currentThread. 2064 "Lorg/apache/harmony/security/x509/NameConstraints;", // Calls Thread.currentThread. 2065 "Lorg/apache/harmony/security/x509/TBSCertList$RevokedCertificate;", // Calls NativeBN.BN_new(). 2066 "Lorg/apache/harmony/security/x509/TBSCertList;", // Calls Thread.currentThread. 2067 "Lorg/apache/harmony/security/x509/TBSCertificate;", // Requires org.apache.harmony.security.x501.Name. 2068 "Lorg/apache/harmony/security/x509/Time;", // Calls native ... -> java.math.NativeBN.BN_new(). 2069 "Lorg/apache/harmony/security/x509/Validity;", // Requires x509.Time. 2070 "Lorg/apache/harmony/security/x509/tsp/TSTInfo;", // Calls Thread.currentThread. 2071 "Lorg/apache/harmony/xml/ExpatParser;", // Calls native ExpatParser.staticInitialize. 2072 "Lorg/apache/harmony/xml/ExpatParser$EntityParser;", // Calls ExpatParser.staticInitialize. 2073 "Lorg/apache/http/conn/params/ConnRouteParams;", // Requires java.util.Locale. 2074 "Lorg/apache/http/conn/ssl/SSLSocketFactory;", // Calls java.security.Security.getProperty. 2075 "Lorg/apache/http/conn/util/InetAddressUtils;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 2076}; 2077 2078static void InitializeClass(const ParallelCompilationManager* manager, size_t class_def_index) 2079 LOCKS_EXCLUDED(Locks::mutator_lock_) { 2080 ATRACE_CALL(); 2081 const DexFile::ClassDef& class_def = manager->GetDexFile()->GetClassDef(class_def_index); 2082 ScopedObjectAccess soa(Thread::Current()); 2083 mirror::ClassLoader* class_loader = soa.Decode<mirror::ClassLoader*>(manager->GetClassLoader()); 2084 const char* descriptor = manager->GetDexFile()->GetClassDescriptor(class_def); 2085 mirror::Class* klass = manager->GetClassLinker()->FindClass(descriptor, class_loader); 2086 if (klass != NULL) { 2087 // Only try to initialize classes that were successfully verified. 2088 if (klass->IsVerified()) { 2089 // Attempt to initialize the class but bail if we either need to initialize the super-class 2090 // or static fields. 2091 manager->GetClassLinker()->EnsureInitialized(klass, false, false); 2092 if (!klass->IsInitialized()) { 2093 // We don't want non-trivial class initialization occurring on multiple threads due to 2094 // deadlock problems. For example, a parent class is initialized (holding its lock) that 2095 // refers to a sub-class in its static/class initializer causing it to try to acquire the 2096 // sub-class' lock. While on a second thread the sub-class is initialized (holding its lock) 2097 // after first initializing its parents, whose locks are acquired. This leads to a 2098 // parent-to-child and a child-to-parent lock ordering and consequent potential deadlock. 2099 // We need to use an ObjectLock due to potential suspension in the interpreting code. Rather 2100 // than use a special Object for the purpose we use the Class of java.lang.Class. 2101 ObjectLock lock(soa.Self(), klass->GetClass()); 2102 // Attempt to initialize allowing initialization of parent classes but still not static 2103 // fields. 2104 manager->GetClassLinker()->EnsureInitialized(klass, false, true); 2105 if (!klass->IsInitialized()) { 2106 // We need to initialize static fields, we only do this for image classes that aren't 2107 // black listed or marked with the $NoPreloadHolder. 2108 bool can_init_static_fields = manager->GetCompiler()->IsImage() && 2109 manager->GetCompiler()->IsImageClass(descriptor); 2110 if (can_init_static_fields) { 2111 // NoPreloadHolder inner class implies this should not be initialized early. 2112 bool is_black_listed = StringPiece(descriptor).ends_with("$NoPreloadHolder;"); 2113 if (!is_black_listed) { 2114 for (size_t i = 0; i < arraysize(class_initializer_black_list); ++i) { 2115 if (StringPiece(descriptor) == class_initializer_black_list[i]) { 2116 is_black_listed = true; 2117 break; 2118 } 2119 } 2120 } 2121 if (!is_black_listed) { 2122 VLOG(compiler) << "Initializing: " << descriptor; 2123 if (StringPiece(descriptor) == "Ljava/lang/Void;") { 2124 // Hand initialize j.l.Void to avoid Dex file operations in un-started runtime. 2125 ObjectLock lock(soa.Self(), klass); 2126 mirror::ObjectArray<mirror::ArtField>* fields = klass->GetSFields(); 2127 CHECK_EQ(fields->GetLength(), 1); 2128 fields->Get(0)->SetObj(klass, manager->GetClassLinker()->FindPrimitiveClass('V')); 2129 klass->SetStatus(mirror::Class::kStatusInitialized, soa.Self()); 2130 } else { 2131 manager->GetClassLinker()->EnsureInitialized(klass, true, true); 2132 } 2133 } 2134 } 2135 } 2136 soa.Self()->AssertNoPendingException(); 2137 } 2138 // If successfully initialized place in SSB array. 2139 if (klass->IsInitialized()) { 2140 klass->GetDexCache()->GetInitializedStaticStorage()->Set(klass->GetDexTypeIndex(), klass); 2141 } 2142 } 2143 // Record the final class status if necessary. 2144 ClassReference ref(manager->GetDexFile(), class_def_index); 2145 manager->GetCompiler()->RecordClassStatus(ref, klass->GetStatus()); 2146 } 2147 // Clear any class not found or verification exceptions. 2148 soa.Self()->ClearException(); 2149} 2150 2151void CompilerDriver::InitializeClasses(jobject jni_class_loader, const DexFile& dex_file, 2152 ThreadPool& thread_pool, base::TimingLogger& timings) { 2153 timings.NewSplit("InitializeNoClinit"); 2154#ifndef NDEBUG 2155 // Sanity check blacklist descriptors. 2156 if (IsImage()) { 2157 for (size_t i = 0; i < arraysize(class_initializer_black_list); ++i) { 2158 const char* descriptor = class_initializer_black_list[i]; 2159 CHECK(IsValidDescriptor(descriptor)) << descriptor; 2160 } 2161 } 2162#endif 2163 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 2164 ParallelCompilationManager context(class_linker, jni_class_loader, this, &dex_file, thread_pool); 2165 context.ForAll(0, dex_file.NumClassDefs(), InitializeClass, thread_count_); 2166} 2167 2168void CompilerDriver::InitializeClasses(jobject class_loader, 2169 const std::vector<const DexFile*>& dex_files, 2170 ThreadPool& thread_pool, base::TimingLogger& timings) { 2171 for (size_t i = 0; i != dex_files.size(); ++i) { 2172 const DexFile* dex_file = dex_files[i]; 2173 CHECK(dex_file != NULL); 2174 InitializeClasses(class_loader, *dex_file, thread_pool, timings); 2175 } 2176} 2177 2178void CompilerDriver::Compile(jobject class_loader, const std::vector<const DexFile*>& dex_files, 2179 ThreadPool& thread_pool, base::TimingLogger& timings) { 2180 for (size_t i = 0; i != dex_files.size(); ++i) { 2181 const DexFile* dex_file = dex_files[i]; 2182 CHECK(dex_file != NULL); 2183 CompileDexFile(class_loader, *dex_file, thread_pool, timings); 2184 } 2185} 2186 2187void CompilerDriver::CompileClass(const ParallelCompilationManager* manager, size_t class_def_index) { 2188 ATRACE_CALL(); 2189 jobject jclass_loader = manager->GetClassLoader(); 2190 const DexFile& dex_file = *manager->GetDexFile(); 2191 const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); 2192 ClassLinker* class_linker = manager->GetClassLinker(); 2193 if (SkipClass(class_linker, jclass_loader, dex_file, class_def)) { 2194 return; 2195 } 2196 ClassReference ref(&dex_file, class_def_index); 2197 // Skip compiling classes with generic verifier failures since they will still fail at runtime 2198 if (verifier::MethodVerifier::IsClassRejected(ref)) { 2199 return; 2200 } 2201 const byte* class_data = dex_file.GetClassData(class_def); 2202 if (class_data == NULL) { 2203 // empty class, probably a marker interface 2204 return; 2205 } 2206 2207 // Can we run DEX-to-DEX compiler on this class ? 2208 DexToDexCompilationLevel dex_to_dex_compilation_level = kDontDexToDexCompile; 2209 { 2210 ScopedObjectAccess soa(Thread::Current()); 2211 mirror::ClassLoader* class_loader = soa.Decode<mirror::ClassLoader*>(jclass_loader); 2212 dex_to_dex_compilation_level = GetDexToDexCompilationlevel(class_loader, dex_file, class_def); 2213 } 2214 ClassDataItemIterator it(dex_file, class_data); 2215 // Skip fields 2216 while (it.HasNextStaticField()) { 2217 it.Next(); 2218 } 2219 while (it.HasNextInstanceField()) { 2220 it.Next(); 2221 } 2222 CompilerDriver* driver = manager->GetCompiler(); 2223 // Compile direct methods 2224 int64_t previous_direct_method_idx = -1; 2225 while (it.HasNextDirectMethod()) { 2226 uint32_t method_idx = it.GetMemberIndex(); 2227 if (method_idx == previous_direct_method_idx) { 2228 // smali can create dex files with two encoded_methods sharing the same method_idx 2229 // http://code.google.com/p/smali/issues/detail?id=119 2230 it.Next(); 2231 continue; 2232 } 2233 previous_direct_method_idx = method_idx; 2234 driver->CompileMethod(it.GetMethodCodeItem(), it.GetMemberAccessFlags(), 2235 it.GetMethodInvokeType(class_def), class_def_index, 2236 method_idx, jclass_loader, dex_file, dex_to_dex_compilation_level); 2237 it.Next(); 2238 } 2239 // Compile virtual methods 2240 int64_t previous_virtual_method_idx = -1; 2241 while (it.HasNextVirtualMethod()) { 2242 uint32_t method_idx = it.GetMemberIndex(); 2243 if (method_idx == previous_virtual_method_idx) { 2244 // smali can create dex files with two encoded_methods sharing the same method_idx 2245 // http://code.google.com/p/smali/issues/detail?id=119 2246 it.Next(); 2247 continue; 2248 } 2249 previous_virtual_method_idx = method_idx; 2250 driver->CompileMethod(it.GetMethodCodeItem(), it.GetMemberAccessFlags(), 2251 it.GetMethodInvokeType(class_def), class_def_index, 2252 method_idx, jclass_loader, dex_file, dex_to_dex_compilation_level); 2253 it.Next(); 2254 } 2255 DCHECK(!it.HasNext()); 2256} 2257 2258void CompilerDriver::CompileDexFile(jobject class_loader, const DexFile& dex_file, 2259 ThreadPool& thread_pool, base::TimingLogger& timings) { 2260 timings.NewSplit("Compile Dex File"); 2261 ParallelCompilationManager context(Runtime::Current()->GetClassLinker(), class_loader, this, 2262 &dex_file, thread_pool); 2263 context.ForAll(0, dex_file.NumClassDefs(), CompilerDriver::CompileClass, thread_count_); 2264} 2265 2266void CompilerDriver::CompileMethod(const DexFile::CodeItem* code_item, uint32_t access_flags, 2267 InvokeType invoke_type, uint32_t class_def_idx, 2268 uint32_t method_idx, jobject class_loader, 2269 const DexFile& dex_file, 2270 DexToDexCompilationLevel dex_to_dex_compilation_level) { 2271 CompiledMethod* compiled_method = NULL; 2272 uint64_t start_ns = NanoTime(); 2273 2274 if ((access_flags & kAccNative) != 0) { 2275 compiled_method = (*jni_compiler_)(*this, access_flags, method_idx, dex_file); 2276 CHECK(compiled_method != NULL); 2277 } else if ((access_flags & kAccAbstract) != 0) { 2278 } else { 2279 MethodReference method_ref(&dex_file, method_idx); 2280 bool compile = verifier::MethodVerifier::IsCandidateForCompilation(method_ref, access_flags); 2281 2282 if (compile) { 2283 CompilerFn compiler = compiler_; 2284#ifdef ART_SEA_IR_MODE 2285 bool use_sea = Runtime::Current()->IsSeaIRMode(); 2286 use_sea = use_sea && 2287 (std::string::npos != PrettyMethod(method_idx, dex_file).find("fibonacci")); 2288 if (use_sea) { 2289 compiler = sea_ir_compiler_; 2290 LOG(INFO) << "Using SEA IR to compile..." << std::endl; 2291 } 2292#endif 2293 // NOTE: if compiler declines to compile this method, it will return NULL. 2294 compiled_method = (*compiler)(*this, code_item, access_flags, invoke_type, class_def_idx, 2295 method_idx, class_loader, dex_file); 2296 } else if (dex_to_dex_compilation_level != kDontDexToDexCompile) { 2297 // TODO: add a mode to disable DEX-to-DEX compilation ? 2298 (*dex_to_dex_compiler_)(*this, code_item, access_flags, 2299 invoke_type, class_def_idx, 2300 method_idx, class_loader, dex_file, 2301 dex_to_dex_compilation_level); 2302 } 2303 } 2304 uint64_t duration_ns = NanoTime() - start_ns; 2305#ifdef ART_USE_PORTABLE_COMPILER 2306 const uint64_t kWarnMilliSeconds = 1000; 2307#else 2308 const uint64_t kWarnMilliSeconds = 100; 2309#endif 2310 if (duration_ns > MsToNs(kWarnMilliSeconds)) { 2311 LOG(WARNING) << "Compilation of " << PrettyMethod(method_idx, dex_file) 2312 << " took " << PrettyDuration(duration_ns); 2313 } 2314 2315 Thread* self = Thread::Current(); 2316 if (compiled_method != NULL) { 2317 MethodReference ref(&dex_file, method_idx); 2318 DCHECK(GetCompiledMethod(ref) == NULL) << PrettyMethod(method_idx, dex_file); 2319 { 2320 MutexLock mu(self, compiled_methods_lock_); 2321 compiled_methods_.Put(ref, compiled_method); 2322 } 2323 DCHECK(GetCompiledMethod(ref) != NULL) << PrettyMethod(method_idx, dex_file); 2324 } 2325 2326 if (self->IsExceptionPending()) { 2327 ScopedObjectAccess soa(self); 2328 LOG(FATAL) << "Unexpected exception compiling: " << PrettyMethod(method_idx, dex_file) << "\n" 2329 << self->GetException(NULL)->Dump(); 2330 } 2331} 2332 2333CompiledClass* CompilerDriver::GetCompiledClass(ClassReference ref) const { 2334 MutexLock mu(Thread::Current(), compiled_classes_lock_); 2335 ClassTable::const_iterator it = compiled_classes_.find(ref); 2336 if (it == compiled_classes_.end()) { 2337 return NULL; 2338 } 2339 CHECK(it->second != NULL); 2340 return it->second; 2341} 2342 2343void CompilerDriver::RecordClassStatus(ClassReference ref, mirror::Class::Status status) { 2344 MutexLock mu(Thread::Current(), compiled_classes_lock_); 2345 auto it = compiled_classes_.find(ref); 2346 if (it == compiled_classes_.end() || it->second->GetStatus() != status) { 2347 // An entry doesn't exist or the status is lower than the new status. 2348 if (it != compiled_classes_.end()) { 2349 CHECK_GT(status, it->second->GetStatus()); 2350 delete it->second; 2351 } 2352 switch (status) { 2353 case mirror::Class::kStatusNotReady: 2354 case mirror::Class::kStatusError: 2355 case mirror::Class::kStatusRetryVerificationAtRuntime: 2356 case mirror::Class::kStatusVerified: 2357 case mirror::Class::kStatusInitialized: 2358 break; // Expected states. 2359 default: 2360 LOG(FATAL) << "Unexpected class status for class " 2361 << PrettyDescriptor(ref.first->GetClassDescriptor(ref.first->GetClassDef(ref.second))) 2362 << " of " << status; 2363 } 2364 CompiledClass* compiled_class = new CompiledClass(status); 2365 compiled_classes_.Overwrite(ref, compiled_class); 2366 } 2367} 2368 2369CompiledMethod* CompilerDriver::GetCompiledMethod(MethodReference ref) const { 2370 MutexLock mu(Thread::Current(), compiled_methods_lock_); 2371 MethodTable::const_iterator it = compiled_methods_.find(ref); 2372 if (it == compiled_methods_.end()) { 2373 return NULL; 2374 } 2375 CHECK(it->second != NULL); 2376 return it->second; 2377} 2378 2379void CompilerDriver::SetBitcodeFileName(std::string const& filename) { 2380 typedef void (*SetBitcodeFileNameFn)(CompilerDriver&, std::string const&); 2381 2382 SetBitcodeFileNameFn set_bitcode_file_name = 2383 reinterpret_cast<SetBitcodeFileNameFn>(compilerLLVMSetBitcodeFileName); 2384 2385 set_bitcode_file_name(*this, filename); 2386} 2387 2388 2389void CompilerDriver::AddRequiresConstructorBarrier(Thread* self, const DexFile* dex_file, 2390 size_t class_def_index) { 2391 WriterMutexLock mu(self, freezing_constructor_lock_); 2392 freezing_constructor_classes_.insert(ClassReference(dex_file, class_def_index)); 2393} 2394 2395bool CompilerDriver::RequiresConstructorBarrier(Thread* self, const DexFile* dex_file, 2396 size_t class_def_index) { 2397 ReaderMutexLock mu(self, freezing_constructor_lock_); 2398 return freezing_constructor_classes_.count(ClassReference(dex_file, class_def_index)) != 0; 2399} 2400 2401bool CompilerDriver::WriteElf(const std::string& android_root, 2402 bool is_host, 2403 const std::vector<const art::DexFile*>& dex_files, 2404 OatWriter& oat_writer, 2405 art::File* file) 2406 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 2407#if defined(ART_USE_PORTABLE_COMPILER) 2408 return art::ElfWriterMclinker::Create(file, oat_writer, dex_files, android_root, is_host, *this); 2409#else 2410 return art::ElfWriterQuick::Create(file, oat_writer, dex_files, android_root, is_host, *this); 2411#endif 2412} 2413void CompilerDriver::InstructionSetToLLVMTarget(InstructionSet instruction_set, 2414 std::string& target_triple, 2415 std::string& target_cpu, 2416 std::string& target_attr) { 2417 switch (instruction_set) { 2418 case kThumb2: 2419 target_triple = "thumb-none-linux-gnueabi"; 2420 target_cpu = "cortex-a9"; 2421 target_attr = "+thumb2,+neon,+neonfp,+vfp3,+db"; 2422 break; 2423 2424 case kArm: 2425 target_triple = "armv7-none-linux-gnueabi"; 2426 // TODO: Fix for Nexus S. 2427 target_cpu = "cortex-a9"; 2428 // TODO: Fix for Xoom. 2429 target_attr = "+v7,+neon,+neonfp,+vfp3,+db"; 2430 break; 2431 2432 case kX86: 2433 target_triple = "i386-pc-linux-gnu"; 2434 target_attr = ""; 2435 break; 2436 2437 case kMips: 2438 target_triple = "mipsel-unknown-linux"; 2439 target_attr = "mips32r2"; 2440 break; 2441 2442 default: 2443 LOG(FATAL) << "Unknown instruction set: " << instruction_set; 2444 } 2445 } 2446} // namespace art 2447