compiler_driver.cc revision 460536209b741bc469f1b0857775449abb2102fb
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 LOG(INFO) << 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 uint16_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 uint16_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 uint16_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 uint16_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 InstructionSetFeatures instruction_set_features, 340 bool image, DescriptorSet* image_classes, size_t thread_count, 341 bool dump_stats) 342 : compiler_backend_(compiler_backend), 343 instruction_set_(instruction_set), 344 instruction_set_features_(instruction_set_features), 345 freezing_constructor_lock_("freezing constructor lock"), 346 compiled_classes_lock_("compiled classes lock"), 347 compiled_methods_lock_("compiled method lock"), 348 image_(image), 349 image_classes_(image_classes), 350 thread_count_(thread_count), 351 start_ns_(0), 352 stats_(new AOTCompilationStats), 353 dump_stats_(dump_stats), 354 compiler_library_(NULL), 355 compiler_(NULL), 356 compiler_context_(NULL), 357 jni_compiler_(NULL), 358 compiler_enable_auto_elf_loading_(NULL), 359 compiler_get_method_code_addr_(NULL), 360 support_boot_image_fixup_(instruction_set == kThumb2), 361 dedupe_code_("dedupe code"), 362 dedupe_mapping_table_("dedupe mapping table"), 363 dedupe_vmap_table_("dedupe vmap table"), 364 dedupe_gc_map_("dedupe gc map") { 365 366 CHECK_PTHREAD_CALL(pthread_key_create, (&tls_key_, NULL), "compiler tls key"); 367 368 // TODO: more work needed to combine initializations and allow per-method backend selection 369 typedef void (*InitCompilerContextFn)(CompilerDriver&); 370 InitCompilerContextFn init_compiler_context; 371 if (compiler_backend_ == kPortable) { 372 // Initialize compiler_context_ 373 init_compiler_context = reinterpret_cast<void (*)(CompilerDriver&)>(ArtInitCompilerContext); 374 compiler_ = reinterpret_cast<CompilerFn>(ArtCompileMethod); 375 } else { 376 init_compiler_context = reinterpret_cast<void (*)(CompilerDriver&)>(ArtInitQuickCompilerContext); 377 compiler_ = reinterpret_cast<CompilerFn>(ArtQuickCompileMethod); 378 } 379 380 dex_to_dex_compiler_ = reinterpret_cast<DexToDexCompilerFn>(ArtCompileDEX); 381 382#ifdef ART_SEA_IR_MODE 383 sea_ir_compiler_ = NULL; 384 if (Runtime::Current()->IsSeaIRMode()) { 385 sea_ir_compiler_ = reinterpret_cast<CompilerFn>(SeaIrCompileMethod); 386 } 387#endif 388 389 init_compiler_context(*this); 390 391 if (compiler_backend_ == kPortable) { 392 jni_compiler_ = reinterpret_cast<JniCompilerFn>(ArtLLVMJniCompileMethod); 393 } else { 394 jni_compiler_ = reinterpret_cast<JniCompilerFn>(ArtQuickJniCompileMethod); 395 } 396 397 CHECK(!Runtime::Current()->IsStarted()); 398 if (!image_) { 399 CHECK(image_classes_.get() == NULL); 400 } 401} 402 403std::vector<uint8_t>* CompilerDriver::DeduplicateCode(const std::vector<uint8_t>& code) { 404 return dedupe_code_.Add(Thread::Current(), code); 405} 406 407std::vector<uint8_t>* CompilerDriver::DeduplicateMappingTable(const std::vector<uint8_t>& code) { 408 return dedupe_mapping_table_.Add(Thread::Current(), code); 409} 410 411std::vector<uint8_t>* CompilerDriver::DeduplicateVMapTable(const std::vector<uint8_t>& code) { 412 return dedupe_vmap_table_.Add(Thread::Current(), code); 413} 414 415std::vector<uint8_t>* CompilerDriver::DeduplicateGCMap(const std::vector<uint8_t>& code) { 416 return dedupe_gc_map_.Add(Thread::Current(), code); 417} 418 419CompilerDriver::~CompilerDriver() { 420 Thread* self = Thread::Current(); 421 { 422 MutexLock mu(self, compiled_classes_lock_); 423 STLDeleteValues(&compiled_classes_); 424 } 425 { 426 MutexLock mu(self, compiled_methods_lock_); 427 STLDeleteValues(&compiled_methods_); 428 } 429 { 430 MutexLock mu(self, compiled_methods_lock_); 431 STLDeleteElements(&code_to_patch_); 432 } 433 { 434 MutexLock mu(self, compiled_methods_lock_); 435 STLDeleteElements(&methods_to_patch_); 436 } 437 CHECK_PTHREAD_CALL(pthread_key_delete, (tls_key_), "delete tls key"); 438 typedef void (*UninitCompilerContextFn)(CompilerDriver&); 439 UninitCompilerContextFn uninit_compiler_context; 440 // Uninitialize compiler_context_ 441 // TODO: rework to combine initialization/uninitialization 442 if (compiler_backend_ == kPortable) { 443 uninit_compiler_context = reinterpret_cast<void (*)(CompilerDriver&)>(ArtUnInitCompilerContext); 444 } else { 445 uninit_compiler_context = reinterpret_cast<void (*)(CompilerDriver&)>(ArtUnInitQuickCompilerContext); 446 } 447 uninit_compiler_context(*this); 448} 449 450CompilerTls* CompilerDriver::GetTls() { 451 // Lazily create thread-local storage 452 CompilerTls* res = static_cast<CompilerTls*>(pthread_getspecific(tls_key_)); 453 if (res == NULL) { 454 res = new CompilerTls(); 455 CHECK_PTHREAD_CALL(pthread_setspecific, (tls_key_, res), "compiler tls"); 456 } 457 return res; 458} 459 460const std::vector<uint8_t>* CompilerDriver::CreateInterpreterToInterpreterBridge() const { 461 return CreateTrampoline(instruction_set_, kInterpreterAbi, 462 INTERPRETER_ENTRYPOINT_OFFSET(pInterpreterToInterpreterBridge)); 463} 464 465const std::vector<uint8_t>* CompilerDriver::CreateInterpreterToCompiledCodeBridge() const { 466 return CreateTrampoline(instruction_set_, kInterpreterAbi, 467 INTERPRETER_ENTRYPOINT_OFFSET(pInterpreterToCompiledCodeBridge)); 468} 469 470const std::vector<uint8_t>* CompilerDriver::CreateJniDlsymLookup() const { 471 return CreateTrampoline(instruction_set_, kJniAbi, JNI_ENTRYPOINT_OFFSET(pDlsymLookup)); 472} 473 474const std::vector<uint8_t>* CompilerDriver::CreatePortableImtConflictTrampoline() const { 475 return CreateTrampoline(instruction_set_, kPortableAbi, 476 PORTABLE_ENTRYPOINT_OFFSET(pPortableImtConflictTrampoline)); 477} 478 479const std::vector<uint8_t>* CompilerDriver::CreatePortableResolutionTrampoline() const { 480 return CreateTrampoline(instruction_set_, kPortableAbi, 481 PORTABLE_ENTRYPOINT_OFFSET(pPortableResolutionTrampoline)); 482} 483 484const std::vector<uint8_t>* CompilerDriver::CreatePortableToInterpreterBridge() const { 485 return CreateTrampoline(instruction_set_, kPortableAbi, 486 PORTABLE_ENTRYPOINT_OFFSET(pPortableToInterpreterBridge)); 487} 488 489const std::vector<uint8_t>* CompilerDriver::CreateQuickImtConflictTrampoline() const { 490 return CreateTrampoline(instruction_set_, kQuickAbi, 491 QUICK_ENTRYPOINT_OFFSET(pQuickImtConflictTrampoline)); 492} 493 494const std::vector<uint8_t>* CompilerDriver::CreateQuickResolutionTrampoline() const { 495 return CreateTrampoline(instruction_set_, kQuickAbi, 496 QUICK_ENTRYPOINT_OFFSET(pQuickResolutionTrampoline)); 497} 498 499const std::vector<uint8_t>* CompilerDriver::CreateQuickToInterpreterBridge() const { 500 return CreateTrampoline(instruction_set_, kQuickAbi, 501 QUICK_ENTRYPOINT_OFFSET(pQuickToInterpreterBridge)); 502} 503 504void CompilerDriver::CompileAll(jobject class_loader, 505 const std::vector<const DexFile*>& dex_files, 506 TimingLogger& timings) { 507 DCHECK(!Runtime::Current()->IsStarted()); 508 UniquePtr<ThreadPool> thread_pool(new ThreadPool("Compiler driver thread pool", thread_count_ - 1)); 509 PreCompile(class_loader, dex_files, *thread_pool.get(), timings); 510 Compile(class_loader, dex_files, *thread_pool.get(), timings); 511 if (dump_stats_) { 512 stats_->Dump(); 513 } 514} 515 516static DexToDexCompilationLevel GetDexToDexCompilationlevel( 517 SirtRef<mirror::ClassLoader>& class_loader, const DexFile& dex_file, 518 const DexFile::ClassDef& class_def) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 519 const char* descriptor = dex_file.GetClassDescriptor(class_def); 520 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 521 mirror::Class* klass = class_linker->FindClass(descriptor, class_loader); 522 if (klass == NULL) { 523 Thread* self = Thread::Current(); 524 CHECK(self->IsExceptionPending()); 525 self->ClearException(); 526 return kDontDexToDexCompile; 527 } 528 // The verifier can only run on "quick" instructions at runtime (see usage of 529 // FindAccessedFieldAtDexPc and FindInvokedMethodAtDexPc in ThrowNullPointerExceptionFromDexPC 530 // function). Since image classes can be verified again while compiling an application, 531 // we must prevent the DEX-to-DEX compiler from introducing them. 532 // TODO: find a way to enable "quick" instructions for image classes and remove this check. 533 bool compiling_image_classes = class_loader.get() == nullptr; 534 if (compiling_image_classes) { 535 return kRequired; 536 } else if (klass->IsVerified()) { 537 // Class is verified so we can enable DEX-to-DEX compilation for performance. 538 return kOptimize; 539 } else if (klass->IsCompileTimeVerified()) { 540 // Class verification has soft-failed. Anyway, ensure at least correctness. 541 DCHECK_EQ(klass->GetStatus(), mirror::Class::kStatusRetryVerificationAtRuntime); 542 return kRequired; 543 } else { 544 // Class verification has failed: do not run DEX-to-DEX compilation. 545 return kDontDexToDexCompile; 546 } 547} 548 549void CompilerDriver::CompileOne(const mirror::ArtMethod* method, TimingLogger& timings) { 550 DCHECK(!Runtime::Current()->IsStarted()); 551 Thread* self = Thread::Current(); 552 jobject jclass_loader; 553 const DexFile* dex_file; 554 uint16_t class_def_idx; 555 { 556 ScopedObjectAccessUnchecked soa(self); 557 ScopedLocalRef<jobject> 558 local_class_loader(soa.Env(), 559 soa.AddLocalReference<jobject>(method->GetDeclaringClass()->GetClassLoader())); 560 jclass_loader = soa.Env()->NewGlobalRef(local_class_loader.get()); 561 // Find the dex_file 562 MethodHelper mh(method); 563 dex_file = &mh.GetDexFile(); 564 class_def_idx = mh.GetClassDefIndex(); 565 } 566 self->TransitionFromRunnableToSuspended(kNative); 567 568 std::vector<const DexFile*> dex_files; 569 dex_files.push_back(dex_file); 570 571 UniquePtr<ThreadPool> thread_pool(new ThreadPool("Compiler driver thread pool", 0U)); 572 PreCompile(jclass_loader, dex_files, *thread_pool.get(), timings); 573 574 uint32_t method_idx = method->GetDexMethodIndex(); 575 const DexFile::CodeItem* code_item = dex_file->GetCodeItem(method->GetCodeItemOffset()); 576 // Can we run DEX-to-DEX compiler on this class ? 577 DexToDexCompilationLevel dex_to_dex_compilation_level = kDontDexToDexCompile; 578 { 579 ScopedObjectAccess soa(Thread::Current()); 580 const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_idx); 581 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), 582 soa.Decode<mirror::ClassLoader*>(jclass_loader)); 583 dex_to_dex_compilation_level = GetDexToDexCompilationlevel(class_loader, *dex_file, class_def); 584 } 585 CompileMethod(code_item, method->GetAccessFlags(), method->GetInvokeType(), 586 class_def_idx, method_idx, jclass_loader, *dex_file, dex_to_dex_compilation_level); 587 588 self->GetJniEnv()->DeleteGlobalRef(jclass_loader); 589 590 self->TransitionFromSuspendedToRunnable(); 591} 592 593void CompilerDriver::Resolve(jobject class_loader, const std::vector<const DexFile*>& dex_files, 594 ThreadPool& thread_pool, TimingLogger& timings) { 595 for (size_t i = 0; i != dex_files.size(); ++i) { 596 const DexFile* dex_file = dex_files[i]; 597 CHECK(dex_file != NULL); 598 ResolveDexFile(class_loader, *dex_file, thread_pool, timings); 599 } 600} 601 602void CompilerDriver::PreCompile(jobject class_loader, const std::vector<const DexFile*>& dex_files, 603 ThreadPool& thread_pool, TimingLogger& timings) { 604 LoadImageClasses(timings); 605 606 Resolve(class_loader, dex_files, thread_pool, timings); 607 608 Verify(class_loader, dex_files, thread_pool, timings); 609 610 InitializeClasses(class_loader, dex_files, thread_pool, timings); 611 612 UpdateImageClasses(timings); 613} 614 615bool CompilerDriver::IsImageClass(const char* descriptor) const { 616 if (!IsImage()) { 617 return true; 618 } else { 619 return image_classes_->find(descriptor) != image_classes_->end(); 620 } 621} 622 623static void ResolveExceptionsForMethod(MethodHelper* mh, 624 std::set<std::pair<uint16_t, const DexFile*> >& exceptions_to_resolve) 625 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 626 const DexFile::CodeItem* code_item = mh->GetCodeItem(); 627 if (code_item == NULL) { 628 return; // native or abstract method 629 } 630 if (code_item->tries_size_ == 0) { 631 return; // nothing to process 632 } 633 const byte* encoded_catch_handler_list = DexFile::GetCatchHandlerData(*code_item, 0); 634 size_t num_encoded_catch_handlers = DecodeUnsignedLeb128(&encoded_catch_handler_list); 635 for (size_t i = 0; i < num_encoded_catch_handlers; i++) { 636 int32_t encoded_catch_handler_size = DecodeSignedLeb128(&encoded_catch_handler_list); 637 bool has_catch_all = false; 638 if (encoded_catch_handler_size <= 0) { 639 encoded_catch_handler_size = -encoded_catch_handler_size; 640 has_catch_all = true; 641 } 642 for (int32_t j = 0; j < encoded_catch_handler_size; j++) { 643 uint16_t encoded_catch_handler_handlers_type_idx = 644 DecodeUnsignedLeb128(&encoded_catch_handler_list); 645 // Add to set of types to resolve if not already in the dex cache resolved types 646 if (!mh->IsResolvedTypeIdx(encoded_catch_handler_handlers_type_idx)) { 647 exceptions_to_resolve.insert( 648 std::pair<uint16_t, const DexFile*>(encoded_catch_handler_handlers_type_idx, 649 &mh->GetDexFile())); 650 } 651 // ignore address associated with catch handler 652 DecodeUnsignedLeb128(&encoded_catch_handler_list); 653 } 654 if (has_catch_all) { 655 // ignore catch all address 656 DecodeUnsignedLeb128(&encoded_catch_handler_list); 657 } 658 } 659} 660 661static bool ResolveCatchBlockExceptionsClassVisitor(mirror::Class* c, void* arg) 662 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 663 std::set<std::pair<uint16_t, const DexFile*> >* exceptions_to_resolve = 664 reinterpret_cast<std::set<std::pair<uint16_t, const DexFile*> >*>(arg); 665 MethodHelper mh; 666 for (size_t i = 0; i < c->NumVirtualMethods(); ++i) { 667 mirror::ArtMethod* m = c->GetVirtualMethod(i); 668 mh.ChangeMethod(m); 669 ResolveExceptionsForMethod(&mh, *exceptions_to_resolve); 670 } 671 for (size_t i = 0; i < c->NumDirectMethods(); ++i) { 672 mirror::ArtMethod* m = c->GetDirectMethod(i); 673 mh.ChangeMethod(m); 674 ResolveExceptionsForMethod(&mh, *exceptions_to_resolve); 675 } 676 return true; 677} 678 679static bool RecordImageClassesVisitor(mirror::Class* klass, void* arg) 680 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 681 CompilerDriver::DescriptorSet* image_classes = 682 reinterpret_cast<CompilerDriver::DescriptorSet*>(arg); 683 image_classes->insert(ClassHelper(klass).GetDescriptor()); 684 return true; 685} 686 687// Make a list of descriptors for classes to include in the image 688void CompilerDriver::LoadImageClasses(TimingLogger& timings) 689 LOCKS_EXCLUDED(Locks::mutator_lock_) { 690 if (!IsImage()) { 691 return; 692 } 693 694 timings.NewSplit("LoadImageClasses"); 695 // Make a first class to load all classes explicitly listed in the file 696 Thread* self = Thread::Current(); 697 ScopedObjectAccess soa(self); 698 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 699 for (auto it = image_classes_->begin(), end = image_classes_->end(); it != end;) { 700 const std::string& descriptor(*it); 701 SirtRef<mirror::Class> klass(self, class_linker->FindSystemClass(descriptor.c_str())); 702 if (klass.get() == NULL) { 703 VLOG(compiler) << "Failed to find class " << descriptor; 704 image_classes_->erase(it++); 705 self->ClearException(); 706 } else { 707 ++it; 708 } 709 } 710 711 // Resolve exception classes referenced by the loaded classes. The catch logic assumes 712 // exceptions are resolved by the verifier when there is a catch block in an interested method. 713 // Do this here so that exception classes appear to have been specified image classes. 714 std::set<std::pair<uint16_t, const DexFile*> > unresolved_exception_types; 715 SirtRef<mirror::Class> java_lang_Throwable(self, 716 class_linker->FindSystemClass("Ljava/lang/Throwable;")); 717 do { 718 unresolved_exception_types.clear(); 719 class_linker->VisitClasses(ResolveCatchBlockExceptionsClassVisitor, 720 &unresolved_exception_types); 721 for (const std::pair<uint16_t, const DexFile*>& exception_type : unresolved_exception_types) { 722 uint16_t exception_type_idx = exception_type.first; 723 const DexFile* dex_file = exception_type.second; 724 SirtRef<mirror::DexCache> dex_cache(self, class_linker->FindDexCache(*dex_file)); 725 SirtRef<mirror::ClassLoader> class_loader(self, nullptr); 726 SirtRef<mirror::Class> klass(self, class_linker->ResolveType(*dex_file, exception_type_idx, 727 dex_cache, class_loader)); 728 if (klass.get() == NULL) { 729 const DexFile::TypeId& type_id = dex_file->GetTypeId(exception_type_idx); 730 const char* descriptor = dex_file->GetTypeDescriptor(type_id); 731 LOG(FATAL) << "Failed to resolve class " << descriptor; 732 } 733 DCHECK(java_lang_Throwable->IsAssignableFrom(klass.get())); 734 } 735 // Resolving exceptions may load classes that reference more exceptions, iterate until no 736 // more are found 737 } while (!unresolved_exception_types.empty()); 738 739 // We walk the roots looking for classes so that we'll pick up the 740 // above classes plus any classes them depend on such super 741 // classes, interfaces, and the required ClassLinker roots. 742 class_linker->VisitClasses(RecordImageClassesVisitor, image_classes_.get()); 743 744 CHECK_NE(image_classes_->size(), 0U); 745} 746 747static void MaybeAddToImageClasses(mirror::Class* klass, CompilerDriver::DescriptorSet* image_classes) 748 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 749 while (!klass->IsObjectClass()) { 750 ClassHelper kh(klass); 751 const char* descriptor = kh.GetDescriptor(); 752 std::pair<CompilerDriver::DescriptorSet::iterator, bool> result = 753 image_classes->insert(descriptor); 754 if (result.second) { 755 VLOG(compiler) << "Adding " << descriptor << " to image classes"; 756 } else { 757 return; 758 } 759 for (size_t i = 0; i < kh.NumDirectInterfaces(); ++i) { 760 MaybeAddToImageClasses(kh.GetDirectInterface(i), image_classes); 761 } 762 if (klass->IsArrayClass()) { 763 MaybeAddToImageClasses(klass->GetComponentType(), image_classes); 764 } 765 klass = klass->GetSuperClass(); 766 } 767} 768 769void CompilerDriver::FindClinitImageClassesCallback(mirror::Object* object, void* arg) { 770 DCHECK(object != NULL); 771 DCHECK(arg != NULL); 772 CompilerDriver* compiler_driver = reinterpret_cast<CompilerDriver*>(arg); 773 MaybeAddToImageClasses(object->GetClass(), compiler_driver->image_classes_.get()); 774} 775 776void CompilerDriver::UpdateImageClasses(TimingLogger& timings) { 777 if (IsImage()) { 778 timings.NewSplit("UpdateImageClasses"); 779 780 // Update image_classes_ with classes for objects created by <clinit> methods. 781 Thread* self = Thread::Current(); 782 const char* old_cause = self->StartAssertNoThreadSuspension("ImageWriter"); 783 gc::Heap* heap = Runtime::Current()->GetHeap(); 784 // TODO: Image spaces only? 785 ScopedObjectAccess soa(Thread::Current()); 786 WriterMutexLock mu(self, *Locks::heap_bitmap_lock_); 787 heap->VisitObjects(FindClinitImageClassesCallback, this); 788 self->EndAssertNoThreadSuspension(old_cause); 789 } 790} 791 792bool CompilerDriver::CanAssumeTypeIsPresentInDexCache(const DexFile& dex_file, uint32_t type_idx) { 793 if (IsImage() && 794 IsImageClass(dex_file.StringDataByIdx(dex_file.GetTypeId(type_idx).descriptor_idx_))) { 795 if (kIsDebugBuild) { 796 ScopedObjectAccess soa(Thread::Current()); 797 mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); 798 mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); 799 CHECK(resolved_class != NULL); 800 } 801 stats_->TypeInDexCache(); 802 return true; 803 } else { 804 stats_->TypeNotInDexCache(); 805 return false; 806 } 807} 808 809bool CompilerDriver::CanAssumeStringIsPresentInDexCache(const DexFile& dex_file, 810 uint32_t string_idx) { 811 // See also Compiler::ResolveDexFile 812 813 bool result = false; 814 if (IsImage()) { 815 // We resolve all const-string strings when building for the image. 816 ScopedObjectAccess soa(Thread::Current()); 817 SirtRef<mirror::DexCache> dex_cache(soa.Self(), Runtime::Current()->GetClassLinker()->FindDexCache(dex_file)); 818 Runtime::Current()->GetClassLinker()->ResolveString(dex_file, string_idx, dex_cache); 819 result = true; 820 } 821 if (result) { 822 stats_->StringInDexCache(); 823 } else { 824 stats_->StringNotInDexCache(); 825 } 826 return result; 827} 828 829bool CompilerDriver::CanAccessTypeWithoutChecks(uint32_t referrer_idx, const DexFile& dex_file, 830 uint32_t type_idx, 831 bool* type_known_final, bool* type_known_abstract, 832 bool* equals_referrers_class) { 833 if (type_known_final != NULL) { 834 *type_known_final = false; 835 } 836 if (type_known_abstract != NULL) { 837 *type_known_abstract = false; 838 } 839 if (equals_referrers_class != NULL) { 840 *equals_referrers_class = false; 841 } 842 ScopedObjectAccess soa(Thread::Current()); 843 mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); 844 // Get type from dex cache assuming it was populated by the verifier 845 mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); 846 if (resolved_class == NULL) { 847 stats_->TypeNeedsAccessCheck(); 848 return false; // Unknown class needs access checks. 849 } 850 const DexFile::MethodId& method_id = dex_file.GetMethodId(referrer_idx); 851 if (equals_referrers_class != NULL) { 852 *equals_referrers_class = (method_id.class_idx_ == type_idx); 853 } 854 mirror::Class* referrer_class = dex_cache->GetResolvedType(method_id.class_idx_); 855 if (referrer_class == NULL) { 856 stats_->TypeNeedsAccessCheck(); 857 return false; // Incomplete referrer knowledge needs access check. 858 } 859 // Perform access check, will return true if access is ok or false if we're going to have to 860 // check this at runtime (for example for class loaders). 861 bool result = referrer_class->CanAccess(resolved_class); 862 if (result) { 863 stats_->TypeDoesntNeedAccessCheck(); 864 if (type_known_final != NULL) { 865 *type_known_final = resolved_class->IsFinal() && !resolved_class->IsArrayClass(); 866 } 867 if (type_known_abstract != NULL) { 868 *type_known_abstract = resolved_class->IsAbstract() && !resolved_class->IsArrayClass(); 869 } 870 } else { 871 stats_->TypeNeedsAccessCheck(); 872 } 873 return result; 874} 875 876bool CompilerDriver::CanAccessInstantiableTypeWithoutChecks(uint32_t referrer_idx, 877 const DexFile& dex_file, 878 uint32_t type_idx) { 879 ScopedObjectAccess soa(Thread::Current()); 880 mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); 881 // Get type from dex cache assuming it was populated by the verifier. 882 mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); 883 if (resolved_class == NULL) { 884 stats_->TypeNeedsAccessCheck(); 885 return false; // Unknown class needs access checks. 886 } 887 const DexFile::MethodId& method_id = dex_file.GetMethodId(referrer_idx); 888 mirror::Class* referrer_class = dex_cache->GetResolvedType(method_id.class_idx_); 889 if (referrer_class == NULL) { 890 stats_->TypeNeedsAccessCheck(); 891 return false; // Incomplete referrer knowledge needs access check. 892 } 893 // Perform access and instantiable checks, will return true if access is ok or false if we're 894 // going to have to check this at runtime (for example for class loaders). 895 bool result = referrer_class->CanAccess(resolved_class) && resolved_class->IsInstantiable(); 896 if (result) { 897 stats_->TypeDoesntNeedAccessCheck(); 898 } else { 899 stats_->TypeNeedsAccessCheck(); 900 } 901 return result; 902} 903 904static mirror::Class* ComputeCompilingMethodsClass(ScopedObjectAccess& soa, 905 SirtRef<mirror::DexCache>& dex_cache, 906 const DexCompilationUnit* mUnit) 907 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 908 // The passed dex_cache is a hint, sanity check before asking the class linker that will take a 909 // lock. 910 if (dex_cache->GetDexFile() != mUnit->GetDexFile()) { 911 dex_cache.reset(mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile())); 912 } 913 SirtRef<mirror::ClassLoader> 914 class_loader(soa.Self(), soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader())); 915 const DexFile::MethodId& referrer_method_id = 916 mUnit->GetDexFile()->GetMethodId(mUnit->GetDexMethodIndex()); 917 return mUnit->GetClassLinker()->ResolveType(*mUnit->GetDexFile(), referrer_method_id.class_idx_, 918 dex_cache, class_loader); 919} 920 921static mirror::ArtField* ComputeFieldReferencedFromCompilingMethod( 922 ScopedObjectAccess& soa, const DexCompilationUnit* mUnit, uint32_t field_idx) 923 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 924 SirtRef<mirror::DexCache> dex_cache(soa.Self(), mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile())); 925 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader())); 926 return mUnit->GetClassLinker()->ResolveField(*mUnit->GetDexFile(), field_idx, dex_cache, 927 class_loader, false); 928} 929 930static mirror::ArtMethod* ComputeMethodReferencedFromCompilingMethod(ScopedObjectAccess& soa, 931 const DexCompilationUnit* mUnit, 932 uint32_t method_idx, 933 InvokeType type) 934 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 935 SirtRef<mirror::DexCache> dex_cache(soa.Self(), mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile())); 936 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader())); 937 return mUnit->GetClassLinker()->ResolveMethod(*mUnit->GetDexFile(), method_idx, dex_cache, 938 class_loader, NULL, type); 939} 940 941bool CompilerDriver::ComputeInstanceFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, 942 bool is_put, int* field_offset, bool* is_volatile) { 943 ScopedObjectAccess soa(Thread::Current()); 944 // Conservative defaults. 945 *field_offset = -1; 946 *is_volatile = true; 947 // Try to resolve field and ignore if an Incompatible Class Change Error (ie is static). 948 mirror::ArtField* resolved_field = ComputeFieldReferencedFromCompilingMethod(soa, mUnit, field_idx); 949 if (resolved_field != NULL && !resolved_field->IsStatic()) { 950 SirtRef<mirror::DexCache> dex_cache(soa.Self(), 951 resolved_field->GetDeclaringClass()->GetDexCache()); 952 mirror::Class* referrer_class = 953 ComputeCompilingMethodsClass(soa, dex_cache, mUnit); 954 if (referrer_class != NULL) { 955 mirror::Class* fields_class = resolved_field->GetDeclaringClass(); 956 bool access_ok = referrer_class->CanAccess(fields_class) && 957 referrer_class->CanAccessMember(fields_class, 958 resolved_field->GetAccessFlags()); 959 if (!access_ok) { 960 // The referring class can't access the resolved field, this may occur as a result of a 961 // protected field being made public by a sub-class. Resort to the dex file to determine 962 // the correct class for the access check. 963 const DexFile& dex_file = *referrer_class->GetDexCache()->GetDexFile(); 964 mirror::Class* dex_fields_class = mUnit->GetClassLinker()->ResolveType(dex_file, 965 dex_file.GetFieldId(field_idx).class_idx_, 966 referrer_class); 967 access_ok = referrer_class->CanAccess(dex_fields_class) && 968 referrer_class->CanAccessMember(dex_fields_class, 969 resolved_field->GetAccessFlags()); 970 } 971 bool is_write_to_final_from_wrong_class = is_put && resolved_field->IsFinal() && 972 fields_class != referrer_class; 973 if (access_ok && !is_write_to_final_from_wrong_class) { 974 *field_offset = resolved_field->GetOffset().Int32Value(); 975 *is_volatile = resolved_field->IsVolatile(); 976 stats_->ResolvedInstanceField(); 977 return true; // Fast path. 978 } 979 } 980 } 981 // Clean up any exception left by field/type resolution 982 if (soa.Self()->IsExceptionPending()) { 983 soa.Self()->ClearException(); 984 } 985 stats_->UnresolvedInstanceField(); 986 return false; // Incomplete knowledge needs slow path. 987} 988 989bool CompilerDriver::ComputeStaticFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, 990 bool is_put, int* field_offset, int* ssb_index, 991 bool* is_referrers_class, bool* is_volatile) { 992 ScopedObjectAccess soa(Thread::Current()); 993 // Conservative defaults. 994 *field_offset = -1; 995 *ssb_index = -1; 996 *is_referrers_class = false; 997 *is_volatile = true; 998 // Try to resolve field and ignore if an Incompatible Class Change Error (ie isn't static). 999 mirror::ArtField* resolved_field = ComputeFieldReferencedFromCompilingMethod(soa, mUnit, field_idx); 1000 if (resolved_field != NULL && resolved_field->IsStatic()) { 1001 SirtRef<mirror::DexCache> dex_cache(soa.Self(), resolved_field->GetDeclaringClass()->GetDexCache()); 1002 mirror::Class* referrer_class = 1003 ComputeCompilingMethodsClass(soa, dex_cache, mUnit); 1004 if (referrer_class != NULL) { 1005 mirror::Class* fields_class = resolved_field->GetDeclaringClass(); 1006 if (fields_class == referrer_class) { 1007 *is_referrers_class = true; // implies no worrying about class initialization 1008 *field_offset = resolved_field->GetOffset().Int32Value(); 1009 *is_volatile = resolved_field->IsVolatile(); 1010 stats_->ResolvedLocalStaticField(); 1011 return true; // fast path 1012 } else { 1013 bool access_ok = referrer_class->CanAccess(fields_class) && 1014 referrer_class->CanAccessMember(fields_class, 1015 resolved_field->GetAccessFlags()); 1016 if (!access_ok) { 1017 // The referring class can't access the resolved field, this may occur as a result of a 1018 // protected field being made public by a sub-class. Resort to the dex file to determine 1019 // the correct class for the access check. Don't change the field's class as that is 1020 // used to identify the SSB. 1021 const DexFile& dex_file = *referrer_class->GetDexCache()->GetDexFile(); 1022 mirror::Class* dex_fields_class = 1023 mUnit->GetClassLinker()->ResolveType(dex_file, 1024 dex_file.GetFieldId(field_idx).class_idx_, 1025 referrer_class); 1026 access_ok = referrer_class->CanAccess(dex_fields_class) && 1027 referrer_class->CanAccessMember(dex_fields_class, 1028 resolved_field->GetAccessFlags()); 1029 } 1030 bool is_write_to_final_from_wrong_class = is_put && resolved_field->IsFinal(); 1031 if (access_ok && !is_write_to_final_from_wrong_class) { 1032 // We have the resolved field, we must make it into a ssbIndex for the referrer 1033 // in its static storage base (which may fail if it doesn't have a slot for it) 1034 // TODO: for images we can elide the static storage base null check 1035 // if we know there's a non-null entry in the image 1036 mirror::DexCache* dex_cache = mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile()); 1037 if (fields_class->GetDexCache() == dex_cache) { 1038 // common case where the dex cache of both the referrer and the field are the same, 1039 // no need to search the dex file 1040 *ssb_index = fields_class->GetDexTypeIndex(); 1041 *field_offset = resolved_field->GetOffset().Int32Value(); 1042 *is_volatile = resolved_field->IsVolatile(); 1043 stats_->ResolvedStaticField(); 1044 return true; 1045 } 1046 // Search dex file for localized ssb index, may fail if field's class is a parent 1047 // of the class mentioned in the dex file and there is no dex cache entry. 1048 const DexFile::StringId* string_id = 1049 mUnit->GetDexFile()->FindStringId(FieldHelper(resolved_field).GetDeclaringClassDescriptor()); 1050 if (string_id != NULL) { 1051 const DexFile::TypeId* type_id = 1052 mUnit->GetDexFile()->FindTypeId(mUnit->GetDexFile()->GetIndexForStringId(*string_id)); 1053 if (type_id != NULL) { 1054 // medium path, needs check of static storage base being initialized 1055 *ssb_index = mUnit->GetDexFile()->GetIndexForTypeId(*type_id); 1056 *field_offset = resolved_field->GetOffset().Int32Value(); 1057 *is_volatile = resolved_field->IsVolatile(); 1058 stats_->ResolvedStaticField(); 1059 return true; 1060 } 1061 } 1062 } 1063 } 1064 } 1065 } 1066 // Clean up any exception left by field/type resolution 1067 if (soa.Self()->IsExceptionPending()) { 1068 soa.Self()->ClearException(); 1069 } 1070 stats_->UnresolvedStaticField(); 1071 return false; // Incomplete knowledge needs slow path. 1072} 1073 1074void CompilerDriver::GetCodeAndMethodForDirectCall(InvokeType* type, InvokeType sharp_type, 1075 bool no_guarantee_of_dex_cache_entry, 1076 mirror::Class* referrer_class, 1077 mirror::ArtMethod* method, 1078 bool update_stats, 1079 MethodReference* target_method, 1080 uintptr_t* direct_code, 1081 uintptr_t* direct_method) { 1082 // For direct and static methods compute possible direct_code and direct_method values, ie 1083 // an address for the Method* being invoked and an address of the code for that Method*. 1084 // For interface calls compute a value for direct_method that is the interface method being 1085 // invoked, so this can be passed to the out-of-line runtime support code. 1086 *direct_code = 0; 1087 *direct_method = 0; 1088 bool use_dex_cache = false; 1089 const bool compiling_boot = Runtime::Current()->GetHeap()->IsCompilingBoot(); 1090 if (compiler_backend_ == kPortable) { 1091 if (sharp_type != kStatic && sharp_type != kDirect) { 1092 return; 1093 } 1094 use_dex_cache = true; 1095 } else { 1096 if (sharp_type != kStatic && sharp_type != kDirect) { 1097 return; 1098 } 1099 // TODO: support patching on all architectures. 1100 use_dex_cache = compiling_boot && !support_boot_image_fixup_; 1101 } 1102 bool method_code_in_boot = (method->GetDeclaringClass()->GetClassLoader() == nullptr); 1103 if (!use_dex_cache) { 1104 if (!method_code_in_boot) { 1105 use_dex_cache = true; 1106 } else { 1107 bool has_clinit_trampoline = 1108 method->IsStatic() && !method->GetDeclaringClass()->IsInitialized(); 1109 if (has_clinit_trampoline && (method->GetDeclaringClass() != referrer_class)) { 1110 // Ensure we run the clinit trampoline unless we are invoking a static method in the same 1111 // class. 1112 use_dex_cache = true; 1113 } 1114 } 1115 } 1116 if (update_stats && method_code_in_boot) { 1117 stats_->DirectCallsToBoot(*type); 1118 stats_->DirectMethodsToBoot(*type); 1119 } 1120 if (!use_dex_cache && compiling_boot) { 1121 MethodHelper mh(method); 1122 if (!IsImageClass(mh.GetDeclaringClassDescriptor())) { 1123 // We can only branch directly to Methods that are resolved in the DexCache. 1124 // Otherwise we won't invoke the resolution trampoline. 1125 use_dex_cache = true; 1126 } 1127 } 1128 // The method is defined not within this dex file. We need a dex cache slot within the current 1129 // dex file or direct pointers. 1130 bool must_use_direct_pointers = false; 1131 if (target_method->dex_file == method->GetDeclaringClass()->GetDexCache()->GetDexFile()) { 1132 target_method->dex_method_index = method->GetDexMethodIndex(); 1133 } else { 1134 // TODO: support patching from one dex file to another in the boot image. 1135 use_dex_cache = use_dex_cache || compiling_boot; 1136 if (no_guarantee_of_dex_cache_entry) { 1137 // See if the method is also declared in this dex cache. 1138 uint32_t dex_method_idx = MethodHelper(method).FindDexMethodIndexInOtherDexFile( 1139 *referrer_class->GetDexCache()->GetDexFile()); 1140 if (dex_method_idx != DexFile::kDexNoIndex) { 1141 target_method->dex_method_index = dex_method_idx; 1142 } else { 1143 must_use_direct_pointers = true; 1144 } 1145 } 1146 } 1147 if (use_dex_cache) { 1148 if (must_use_direct_pointers) { 1149 // Fail. Test above showed the only safe dispatch was via the dex cache, however, the direct 1150 // pointers are required as the dex cache lacks an appropriate entry. 1151 VLOG(compiler) << "Dex cache devirtualization failed for: " << PrettyMethod(method); 1152 } else { 1153 *type = sharp_type; 1154 } 1155 } else { 1156 if (compiling_boot) { 1157 *type = sharp_type; 1158 *direct_method = -1; 1159 *direct_code = -1; 1160 } else { 1161 bool method_in_image = 1162 Runtime::Current()->GetHeap()->FindSpaceFromObject(method, false)->IsImageSpace(); 1163 if (method_in_image) { 1164 CHECK(!method->IsAbstract()); 1165 *type = sharp_type; 1166 *direct_method = reinterpret_cast<uintptr_t>(method); 1167 *direct_code = reinterpret_cast<uintptr_t>(method->GetEntryPointFromCompiledCode()); 1168 target_method->dex_file = method->GetDeclaringClass()->GetDexCache()->GetDexFile(); 1169 target_method->dex_method_index = method->GetDexMethodIndex(); 1170 } else if (!must_use_direct_pointers) { 1171 // Set the code and rely on the dex cache for the method. 1172 *type = sharp_type; 1173 *direct_code = reinterpret_cast<uintptr_t>(method->GetEntryPointFromCompiledCode()); 1174 } else { 1175 // Direct pointers were required but none were available. 1176 VLOG(compiler) << "Dex cache devirtualization failed for: " << PrettyMethod(method); 1177 } 1178 } 1179 } 1180} 1181 1182bool CompilerDriver::ComputeInvokeInfo(const DexCompilationUnit* mUnit, const uint32_t dex_pc, 1183 bool update_stats, bool enable_devirtualization, 1184 InvokeType* invoke_type, MethodReference* target_method, 1185 int* vtable_idx, uintptr_t* direct_code, 1186 uintptr_t* direct_method) { 1187 ScopedObjectAccess soa(Thread::Current()); 1188 *vtable_idx = -1; 1189 *direct_code = 0; 1190 *direct_method = 0; 1191 mirror::ArtMethod* resolved_method = 1192 ComputeMethodReferencedFromCompilingMethod(soa, mUnit, target_method->dex_method_index, 1193 *invoke_type); 1194 if (resolved_method != NULL) { 1195 if (*invoke_type == kVirtual || *invoke_type == kSuper) { 1196 *vtable_idx = resolved_method->GetMethodIndex(); 1197 } else if (*invoke_type == kInterface) { 1198 *vtable_idx = resolved_method->GetDexMethodIndex(); 1199 } 1200 // Don't try to fast-path if we don't understand the caller's class or this appears to be an 1201 // Incompatible Class Change Error. 1202 SirtRef<mirror::DexCache> dex_cache(soa.Self(), resolved_method->GetDeclaringClass()->GetDexCache()); 1203 mirror::Class* referrer_class = 1204 ComputeCompilingMethodsClass(soa, dex_cache, mUnit); 1205 bool icce = resolved_method->CheckIncompatibleClassChange(*invoke_type); 1206 if (referrer_class != NULL && !icce) { 1207 mirror::Class* methods_class = resolved_method->GetDeclaringClass(); 1208 if (!referrer_class->CanAccess(methods_class) || 1209 !referrer_class->CanAccessMember(methods_class, 1210 resolved_method->GetAccessFlags())) { 1211 // The referring class can't access the resolved method, this may occur as a result of a 1212 // protected method being made public by implementing an interface that re-declares the 1213 // method public. Resort to the dex file to determine the correct class for the access 1214 // check. 1215 uint16_t class_idx = 1216 target_method->dex_file->GetMethodId(target_method->dex_method_index).class_idx_; 1217 methods_class = mUnit->GetClassLinker()->ResolveType(*target_method->dex_file, 1218 class_idx, referrer_class); 1219 } 1220 if (referrer_class->CanAccess(methods_class) && 1221 referrer_class->CanAccessMember(methods_class, resolved_method->GetAccessFlags())) { 1222 const bool enableFinalBasedSharpening = enable_devirtualization; 1223 // Sharpen a virtual call into a direct call when the target is known not to have been 1224 // overridden (ie is final). 1225 bool can_sharpen_virtual_based_on_type = 1226 (*invoke_type == kVirtual) && (resolved_method->IsFinal() || methods_class->IsFinal()); 1227 // For invoke-super, ensure the vtable index will be correct to dispatch in the vtable of 1228 // the super class. 1229 bool can_sharpen_super_based_on_type = (*invoke_type == kSuper) && 1230 (referrer_class != methods_class) && referrer_class->IsSubClass(methods_class) && 1231 resolved_method->GetMethodIndex() < methods_class->GetVTable()->GetLength() && 1232 (methods_class->GetVTable()->Get(resolved_method->GetMethodIndex()) == resolved_method); 1233 1234 if (enableFinalBasedSharpening && (can_sharpen_virtual_based_on_type || 1235 can_sharpen_super_based_on_type)) { 1236 // Sharpen a virtual call into a direct call. The method_idx is into referrer's 1237 // dex cache, check that this resolved method is where we expect it. 1238 CHECK(referrer_class->GetDexCache()->GetResolvedMethod(target_method->dex_method_index) == 1239 resolved_method) << PrettyMethod(resolved_method); 1240 InvokeType orig_invoke_type = *invoke_type; 1241 GetCodeAndMethodForDirectCall(invoke_type, kDirect, false, referrer_class, resolved_method, 1242 update_stats, target_method, direct_code, direct_method); 1243 if (update_stats && (*invoke_type == kDirect)) { 1244 stats_->ResolvedMethod(orig_invoke_type); 1245 stats_->VirtualMadeDirect(orig_invoke_type); 1246 } 1247 DCHECK_NE(*invoke_type, kSuper) << PrettyMethod(resolved_method); 1248 return true; 1249 } 1250 const bool enableVerifierBasedSharpening = enable_devirtualization; 1251 if (enableVerifierBasedSharpening && (*invoke_type == kVirtual || 1252 *invoke_type == kInterface)) { 1253 // Did the verifier record a more precise invoke target based on its type information? 1254 const MethodReference caller_method(mUnit->GetDexFile(), mUnit->GetDexMethodIndex()); 1255 const MethodReference* devirt_map_target = 1256 verifier::MethodVerifier::GetDevirtMap(caller_method, dex_pc); 1257 if (devirt_map_target != NULL) { 1258 SirtRef<mirror::DexCache> target_dex_cache(soa.Self(), mUnit->GetClassLinker()->FindDexCache(*devirt_map_target->dex_file)); 1259 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader())); 1260 mirror::ArtMethod* called_method = 1261 mUnit->GetClassLinker()->ResolveMethod(*devirt_map_target->dex_file, 1262 devirt_map_target->dex_method_index, 1263 target_dex_cache, class_loader, NULL, 1264 kVirtual); 1265 CHECK(called_method != NULL); 1266 CHECK(!called_method->IsAbstract()); 1267 InvokeType orig_invoke_type = *invoke_type; 1268 GetCodeAndMethodForDirectCall(invoke_type, kDirect, true, referrer_class, called_method, 1269 update_stats, target_method, direct_code, direct_method); 1270 if (update_stats && (*invoke_type == kDirect)) { 1271 stats_->ResolvedMethod(orig_invoke_type); 1272 stats_->VirtualMadeDirect(orig_invoke_type); 1273 stats_->PreciseTypeDevirtualization(); 1274 } 1275 DCHECK_NE(*invoke_type, kSuper); 1276 return true; 1277 } 1278 } 1279 if (*invoke_type == kSuper) { 1280 // Unsharpened super calls are suspicious so go slow-path. 1281 } else { 1282 // Sharpening failed so generate a regular resolved method dispatch. 1283 if (update_stats) { 1284 stats_->ResolvedMethod(*invoke_type); 1285 } 1286 GetCodeAndMethodForDirectCall(invoke_type, *invoke_type, false, referrer_class, resolved_method, 1287 update_stats, target_method, direct_code, direct_method); 1288 return true; 1289 } 1290 } 1291 } 1292 } 1293 // Clean up any exception left by method/invoke_type resolution 1294 if (soa.Self()->IsExceptionPending()) { 1295 soa.Self()->ClearException(); 1296 } 1297 if (update_stats) { 1298 stats_->UnresolvedMethod(*invoke_type); 1299 } 1300 return false; // Incomplete knowledge needs slow path. 1301} 1302 1303bool CompilerDriver::IsSafeCast(const MethodReference& mr, uint32_t dex_pc) { 1304 bool result = verifier::MethodVerifier::IsSafeCast(mr, dex_pc); 1305 if (result) { 1306 stats_->SafeCast(); 1307 } else { 1308 stats_->NotASafeCast(); 1309 } 1310 return result; 1311} 1312 1313 1314void CompilerDriver::AddCodePatch(const DexFile* dex_file, 1315 uint16_t referrer_class_def_idx, 1316 uint32_t referrer_method_idx, 1317 InvokeType referrer_invoke_type, 1318 uint32_t target_method_idx, 1319 InvokeType target_invoke_type, 1320 size_t literal_offset) { 1321 MutexLock mu(Thread::Current(), compiled_methods_lock_); 1322 code_to_patch_.push_back(new PatchInformation(dex_file, 1323 referrer_class_def_idx, 1324 referrer_method_idx, 1325 referrer_invoke_type, 1326 target_method_idx, 1327 target_invoke_type, 1328 literal_offset)); 1329} 1330void CompilerDriver::AddMethodPatch(const DexFile* dex_file, 1331 uint16_t referrer_class_def_idx, 1332 uint32_t referrer_method_idx, 1333 InvokeType referrer_invoke_type, 1334 uint32_t target_method_idx, 1335 InvokeType target_invoke_type, 1336 size_t literal_offset) { 1337 MutexLock mu(Thread::Current(), compiled_methods_lock_); 1338 methods_to_patch_.push_back(new PatchInformation(dex_file, 1339 referrer_class_def_idx, 1340 referrer_method_idx, 1341 referrer_invoke_type, 1342 target_method_idx, 1343 target_invoke_type, 1344 literal_offset)); 1345} 1346 1347class ParallelCompilationManager { 1348 public: 1349 typedef void Callback(const ParallelCompilationManager* manager, size_t index); 1350 1351 ParallelCompilationManager(ClassLinker* class_linker, 1352 jobject class_loader, 1353 CompilerDriver* compiler, 1354 const DexFile* dex_file, 1355 ThreadPool& thread_pool) 1356 : index_(0), 1357 class_linker_(class_linker), 1358 class_loader_(class_loader), 1359 compiler_(compiler), 1360 dex_file_(dex_file), 1361 thread_pool_(&thread_pool) {} 1362 1363 ClassLinker* GetClassLinker() const { 1364 CHECK(class_linker_ != NULL); 1365 return class_linker_; 1366 } 1367 1368 jobject GetClassLoader() const { 1369 return class_loader_; 1370 } 1371 1372 CompilerDriver* GetCompiler() const { 1373 CHECK(compiler_ != NULL); 1374 return compiler_; 1375 } 1376 1377 const DexFile* GetDexFile() const { 1378 CHECK(dex_file_ != NULL); 1379 return dex_file_; 1380 } 1381 1382 void ForAll(size_t begin, size_t end, Callback callback, size_t work_units) { 1383 Thread* self = Thread::Current(); 1384 self->AssertNoPendingException(); 1385 CHECK_GT(work_units, 0U); 1386 1387 std::vector<ForAllClosure*> closures(work_units); 1388 index_ = begin; 1389 for (size_t i = 0; i < work_units; ++i) { 1390 closures[i] = new ForAllClosure(this, end, callback); 1391 thread_pool_->AddTask(self, closures[i]); 1392 } 1393 thread_pool_->StartWorkers(self); 1394 1395 // Ensure we're suspended while we're blocked waiting for the other threads to finish (worker 1396 // thread destructor's called below perform join). 1397 CHECK_NE(self->GetState(), kRunnable); 1398 1399 // Wait for all the worker threads to finish. 1400 thread_pool_->Wait(self, true, false); 1401 } 1402 1403 size_t NextIndex() { 1404 return index_.fetch_add(1); 1405 } 1406 1407 private: 1408 class ForAllClosure : public Task { 1409 public: 1410 ForAllClosure(ParallelCompilationManager* manager, size_t end, Callback* callback) 1411 : manager_(manager), 1412 end_(end), 1413 callback_(callback) {} 1414 1415 virtual void Run(Thread* self) { 1416 while (true) { 1417 const size_t index = manager_->NextIndex(); 1418 if (UNLIKELY(index >= end_)) { 1419 break; 1420 } 1421 callback_(manager_, index); 1422 self->AssertNoPendingException(); 1423 } 1424 } 1425 1426 virtual void Finalize() { 1427 delete this; 1428 } 1429 1430 private: 1431 ParallelCompilationManager* const manager_; 1432 const size_t end_; 1433 Callback* const callback_; 1434 }; 1435 1436 AtomicInteger index_; 1437 ClassLinker* const class_linker_; 1438 const jobject class_loader_; 1439 CompilerDriver* const compiler_; 1440 const DexFile* const dex_file_; 1441 ThreadPool* const thread_pool_; 1442 1443 DISALLOW_COPY_AND_ASSIGN(ParallelCompilationManager); 1444}; 1445 1446// Return true if the class should be skipped during compilation. 1447// 1448// The first case where we skip is for redundant class definitions in 1449// the boot classpath. We skip all but the first definition in that case. 1450// 1451// The second case where we skip is when an app bundles classes found 1452// in the boot classpath. Since at runtime we will select the class from 1453// the boot classpath, we ignore the one from the app. 1454static bool SkipClass(ClassLinker* class_linker, jobject class_loader, const DexFile& dex_file, 1455 const DexFile::ClassDef& class_def) { 1456 const char* descriptor = dex_file.GetClassDescriptor(class_def); 1457 if (class_loader == NULL) { 1458 DexFile::ClassPathEntry pair = DexFile::FindInClassPath(descriptor, class_linker->GetBootClassPath()); 1459 CHECK(pair.second != NULL); 1460 if (pair.first != &dex_file) { 1461 LOG(WARNING) << "Skipping class " << descriptor << " from " << dex_file.GetLocation() 1462 << " previously found in " << pair.first->GetLocation(); 1463 return true; 1464 } 1465 return false; 1466 } 1467 return class_linker->IsInBootClassPath(descriptor); 1468} 1469 1470// A fast version of SkipClass above if the class pointer is available 1471// that avoids the expensive FindInClassPath search. 1472static bool SkipClass(jobject class_loader, const DexFile& dex_file, mirror::Class* klass) 1473 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1474 DCHECK(klass != NULL); 1475 const DexFile& original_dex_file = *klass->GetDexCache()->GetDexFile(); 1476 if (&dex_file != &original_dex_file) { 1477 if (class_loader == NULL) { 1478 LOG(WARNING) << "Skipping class " << PrettyDescriptor(klass) << " from " 1479 << dex_file.GetLocation() << " previously found in " 1480 << original_dex_file.GetLocation(); 1481 } 1482 return true; 1483 } 1484 return false; 1485} 1486 1487static void ResolveClassFieldsAndMethods(const ParallelCompilationManager* manager, 1488 size_t class_def_index) 1489 LOCKS_EXCLUDED(Locks::mutator_lock_) { 1490 ATRACE_CALL(); 1491 Thread* self = Thread::Current(); 1492 jobject jclass_loader = manager->GetClassLoader(); 1493 const DexFile& dex_file = *manager->GetDexFile(); 1494 ClassLinker* class_linker = manager->GetClassLinker(); 1495 1496 // If an instance field is final then we need to have a barrier on the return, static final 1497 // fields are assigned within the lock held for class initialization. Conservatively assume 1498 // constructor barriers are always required. 1499 bool requires_constructor_barrier = true; 1500 1501 // Method and Field are the worst. We can't resolve without either 1502 // context from the code use (to disambiguate virtual vs direct 1503 // method and instance vs static field) or from class 1504 // definitions. While the compiler will resolve what it can as it 1505 // needs it, here we try to resolve fields and methods used in class 1506 // definitions, since many of them many never be referenced by 1507 // generated code. 1508 const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); 1509 if (!SkipClass(class_linker, jclass_loader, dex_file, class_def)) { 1510 ScopedObjectAccess soa(self); 1511 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), soa.Decode<mirror::ClassLoader*>(jclass_loader)); 1512 SirtRef<mirror::DexCache> dex_cache(soa.Self(), class_linker->FindDexCache(dex_file)); 1513 // Resolve the class. 1514 mirror::Class* klass = class_linker->ResolveType(dex_file, class_def.class_idx_, dex_cache, 1515 class_loader); 1516 bool resolve_fields_and_methods; 1517 if (klass == NULL) { 1518 // Class couldn't be resolved, for example, super-class is in a different dex file. Don't 1519 // attempt to resolve methods and fields when there is no declaring class. 1520 CHECK(soa.Self()->IsExceptionPending()); 1521 soa.Self()->ClearException(); 1522 resolve_fields_and_methods = false; 1523 } else { 1524 resolve_fields_and_methods = manager->GetCompiler()->IsImage(); 1525 } 1526 // Note the class_data pointer advances through the headers, 1527 // static fields, instance fields, direct methods, and virtual 1528 // methods. 1529 const byte* class_data = dex_file.GetClassData(class_def); 1530 if (class_data == NULL) { 1531 // Empty class such as a marker interface. 1532 requires_constructor_barrier = false; 1533 } else { 1534 ClassDataItemIterator it(dex_file, class_data); 1535 while (it.HasNextStaticField()) { 1536 if (resolve_fields_and_methods) { 1537 mirror::ArtField* field = class_linker->ResolveField(dex_file, it.GetMemberIndex(), 1538 dex_cache, class_loader, true); 1539 if (field == NULL) { 1540 CHECK(soa.Self()->IsExceptionPending()); 1541 soa.Self()->ClearException(); 1542 } 1543 } 1544 it.Next(); 1545 } 1546 // We require a constructor barrier if there are final instance fields. 1547 requires_constructor_barrier = false; 1548 while (it.HasNextInstanceField()) { 1549 if ((it.GetMemberAccessFlags() & kAccFinal) != 0) { 1550 requires_constructor_barrier = true; 1551 } 1552 if (resolve_fields_and_methods) { 1553 mirror::ArtField* field = class_linker->ResolveField(dex_file, it.GetMemberIndex(), 1554 dex_cache, class_loader, false); 1555 if (field == NULL) { 1556 CHECK(soa.Self()->IsExceptionPending()); 1557 soa.Self()->ClearException(); 1558 } 1559 } 1560 it.Next(); 1561 } 1562 if (resolve_fields_and_methods) { 1563 while (it.HasNextDirectMethod()) { 1564 mirror::ArtMethod* method = class_linker->ResolveMethod(dex_file, it.GetMemberIndex(), 1565 dex_cache, class_loader, NULL, 1566 it.GetMethodInvokeType(class_def)); 1567 if (method == NULL) { 1568 CHECK(soa.Self()->IsExceptionPending()); 1569 soa.Self()->ClearException(); 1570 } 1571 it.Next(); 1572 } 1573 while (it.HasNextVirtualMethod()) { 1574 mirror::ArtMethod* method = class_linker->ResolveMethod(dex_file, it.GetMemberIndex(), 1575 dex_cache, class_loader, NULL, 1576 it.GetMethodInvokeType(class_def)); 1577 if (method == NULL) { 1578 CHECK(soa.Self()->IsExceptionPending()); 1579 soa.Self()->ClearException(); 1580 } 1581 it.Next(); 1582 } 1583 DCHECK(!it.HasNext()); 1584 } 1585 } 1586 } 1587 if (requires_constructor_barrier) { 1588 manager->GetCompiler()->AddRequiresConstructorBarrier(self, &dex_file, class_def_index); 1589 } 1590} 1591 1592static void ResolveType(const ParallelCompilationManager* manager, size_t type_idx) 1593 LOCKS_EXCLUDED(Locks::mutator_lock_) { 1594 // Class derived values are more complicated, they require the linker and loader. 1595 ScopedObjectAccess soa(Thread::Current()); 1596 ClassLinker* class_linker = manager->GetClassLinker(); 1597 const DexFile& dex_file = *manager->GetDexFile(); 1598 SirtRef<mirror::DexCache> dex_cache(soa.Self(), class_linker->FindDexCache(dex_file)); 1599 SirtRef<mirror::ClassLoader> class_loader( 1600 soa.Self(), soa.Decode<mirror::ClassLoader*>(manager->GetClassLoader())); 1601 mirror::Class* klass = class_linker->ResolveType(dex_file, type_idx, dex_cache, class_loader); 1602 1603 if (klass == NULL) { 1604 CHECK(soa.Self()->IsExceptionPending()); 1605 mirror::Throwable* exception = soa.Self()->GetException(NULL); 1606 VLOG(compiler) << "Exception during type resolution: " << exception->Dump(); 1607 if (strcmp("Ljava/lang/OutOfMemoryError;", 1608 ClassHelper(exception->GetClass()).GetDescriptor()) == 0) { 1609 // There's little point continuing compilation if the heap is exhausted. 1610 LOG(FATAL) << "Out of memory during type resolution for compilation"; 1611 } 1612 soa.Self()->ClearException(); 1613 } 1614} 1615 1616void CompilerDriver::ResolveDexFile(jobject class_loader, const DexFile& dex_file, 1617 ThreadPool& thread_pool, TimingLogger& timings) { 1618 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 1619 1620 // TODO: we could resolve strings here, although the string table is largely filled with class 1621 // and method names. 1622 1623 ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, thread_pool); 1624 if (IsImage()) { 1625 // For images we resolve all types, such as array, whereas for applications just those with 1626 // classdefs are resolved by ResolveClassFieldsAndMethods. 1627 timings.NewSplit("Resolve Types"); 1628 context.ForAll(0, dex_file.NumTypeIds(), ResolveType, thread_count_); 1629 } 1630 1631 timings.NewSplit("Resolve MethodsAndFields"); 1632 context.ForAll(0, dex_file.NumClassDefs(), ResolveClassFieldsAndMethods, thread_count_); 1633} 1634 1635void CompilerDriver::Verify(jobject class_loader, const std::vector<const DexFile*>& dex_files, 1636 ThreadPool& thread_pool, TimingLogger& timings) { 1637 for (size_t i = 0; i != dex_files.size(); ++i) { 1638 const DexFile* dex_file = dex_files[i]; 1639 CHECK(dex_file != NULL); 1640 VerifyDexFile(class_loader, *dex_file, thread_pool, timings); 1641 } 1642} 1643 1644static void VerifyClass(const ParallelCompilationManager* manager, size_t class_def_index) 1645 LOCKS_EXCLUDED(Locks::mutator_lock_) { 1646 ATRACE_CALL(); 1647 ScopedObjectAccess soa(Thread::Current()); 1648 const DexFile& dex_file = *manager->GetDexFile(); 1649 const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); 1650 const char* descriptor = dex_file.GetClassDescriptor(class_def); 1651 ClassLinker* class_linker = manager->GetClassLinker(); 1652 jobject jclass_loader = manager->GetClassLoader(); 1653 SirtRef<mirror::ClassLoader> class_loader( 1654 soa.Self(), soa.Decode<mirror::ClassLoader*>(jclass_loader)); 1655 SirtRef<mirror::Class> klass(soa.Self(), class_linker->FindClass(descriptor, class_loader)); 1656 if (klass.get() == nullptr) { 1657 CHECK(soa.Self()->IsExceptionPending()); 1658 soa.Self()->ClearException(); 1659 1660 /* 1661 * At compile time, we can still structurally verify the class even if FindClass fails. 1662 * This is to ensure the class is structurally sound for compilation. An unsound class 1663 * will be rejected by the verifier and later skipped during compilation in the compiler. 1664 */ 1665 SirtRef<mirror::DexCache> dex_cache(soa.Self(), class_linker->FindDexCache(dex_file)); 1666 std::string error_msg; 1667 if (verifier::MethodVerifier::VerifyClass(&dex_file, dex_cache, class_loader, &class_def, true, 1668 &error_msg) == 1669 verifier::MethodVerifier::kHardFailure) { 1670 LOG(ERROR) << "Verification failed on class " << PrettyDescriptor(descriptor) 1671 << " because: " << error_msg; 1672 } 1673 } else if (!SkipClass(jclass_loader, dex_file, klass.get())) { 1674 CHECK(klass->IsResolved()) << PrettyClass(klass.get()); 1675 class_linker->VerifyClass(klass); 1676 1677 if (klass->IsErroneous()) { 1678 // ClassLinker::VerifyClass throws, which isn't useful in the compiler. 1679 CHECK(soa.Self()->IsExceptionPending()); 1680 soa.Self()->ClearException(); 1681 } 1682 1683 CHECK(klass->IsCompileTimeVerified() || klass->IsErroneous()) 1684 << PrettyDescriptor(klass.get()) << ": state=" << klass->GetStatus(); 1685 } 1686 soa.Self()->AssertNoPendingException(); 1687} 1688 1689void CompilerDriver::VerifyDexFile(jobject class_loader, const DexFile& dex_file, 1690 ThreadPool& thread_pool, TimingLogger& timings) { 1691 timings.NewSplit("Verify Dex File"); 1692 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 1693 ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, thread_pool); 1694 context.ForAll(0, dex_file.NumClassDefs(), VerifyClass, thread_count_); 1695} 1696 1697static const char* class_initializer_black_list[] = { 1698 "Landroid/app/ActivityThread;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1699 "Landroid/bluetooth/BluetoothAudioGateway;", // Calls android.bluetooth.BluetoothAudioGateway.classInitNative(). 1700 "Landroid/bluetooth/HeadsetBase;", // Calls android.bluetooth.HeadsetBase.classInitNative(). 1701 "Landroid/content/res/CompatibilityInfo;", // Requires android.util.DisplayMetrics -..-> android.os.SystemProperties.native_get_int. 1702 "Landroid/content/res/CompatibilityInfo$1;", // Requires android.util.DisplayMetrics -..-> android.os.SystemProperties.native_get_int. 1703 "Landroid/content/UriMatcher;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1704 "Landroid/database/CursorWindow;", // Requires android.util.DisplayMetrics -..-> android.os.SystemProperties.native_get_int. 1705 "Landroid/database/sqlite/SQLiteConnection;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1706 "Landroid/database/sqlite/SQLiteConnection$Operation;", // Requires SimpleDateFormat -> java.util.Locale. 1707 "Landroid/database/sqlite/SQLiteDatabaseConfiguration;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1708 "Landroid/database/sqlite/SQLiteDebug;", // Calls android.util.Log.isLoggable. 1709 "Landroid/database/sqlite/SQLiteOpenHelper;", // Calls Class.getSimpleName -> Class.isAnonymousClass -> Class.getDex. 1710 "Landroid/database/sqlite/SQLiteQueryBuilder;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1711 "Landroid/drm/DrmManagerClient;", // Calls System.loadLibrary. 1712 "Landroid/graphics/drawable/AnimatedRotateDrawable;", // Sub-class of Drawable. 1713 "Landroid/graphics/drawable/AnimationDrawable;", // Sub-class of Drawable. 1714 "Landroid/graphics/drawable/BitmapDrawable;", // Sub-class of Drawable. 1715 "Landroid/graphics/drawable/ClipDrawable;", // Sub-class of Drawable. 1716 "Landroid/graphics/drawable/ColorDrawable;", // Sub-class of Drawable. 1717 "Landroid/graphics/drawable/Drawable;", // Requires android.graphics.Rect. 1718 "Landroid/graphics/drawable/DrawableContainer;", // Sub-class of Drawable. 1719 "Landroid/graphics/drawable/GradientDrawable;", // Sub-class of Drawable. 1720 "Landroid/graphics/drawable/LayerDrawable;", // Sub-class of Drawable. 1721 "Landroid/graphics/drawable/NinePatchDrawable;", // Sub-class of Drawable. 1722 "Landroid/graphics/drawable/RotateDrawable;", // Sub-class of Drawable. 1723 "Landroid/graphics/drawable/ScaleDrawable;", // Sub-class of Drawable. 1724 "Landroid/graphics/drawable/ShapeDrawable;", // Sub-class of Drawable. 1725 "Landroid/graphics/drawable/StateListDrawable;", // Sub-class of Drawable. 1726 "Landroid/graphics/drawable/TransitionDrawable;", // Sub-class of Drawable. 1727 "Landroid/graphics/Matrix;", // Calls android.graphics.Matrix.native_create. 1728 "Landroid/graphics/Matrix$1;", // Requires Matrix. 1729 "Landroid/graphics/PixelFormat;", // Calls android.graphics.PixelFormat.nativeClassInit(). 1730 "Landroid/graphics/Rect;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1731 "Landroid/graphics/SurfaceTexture;", // Calls android.graphics.SurfaceTexture.nativeClassInit(). 1732 "Landroid/graphics/Typeface;", // Calls android.graphics.Typeface.nativeCreate. 1733 "Landroid/inputmethodservice/ExtractEditText;", // Requires android.widget.TextView. 1734 "Landroid/media/AmrInputStream;", // Calls OsConstants.initConstants. 1735 "Landroid/media/CamcorderProfile;", // Calls OsConstants.initConstants. 1736 "Landroid/media/CameraProfile;", // Calls System.loadLibrary. 1737 "Landroid/media/DecoderCapabilities;", // Calls System.loadLibrary. 1738 "Landroid/media/EncoderCapabilities;", // Calls OsConstants.initConstants. 1739 "Landroid/media/ExifInterface;", // Calls OsConstants.initConstants. 1740 "Landroid/media/MediaCodec;", // Calls OsConstants.initConstants. 1741 "Landroid/media/MediaCodecList;", // Calls OsConstants.initConstants. 1742 "Landroid/media/MediaCrypto;", // Calls OsConstants.initConstants. 1743 "Landroid/media/MediaDrm;", // Calls OsConstants.initConstants. 1744 "Landroid/media/MediaExtractor;", // Calls OsConstants.initConstants. 1745 "Landroid/media/MediaFile;", // Requires DecoderCapabilities. 1746 "Landroid/media/MediaMetadataRetriever;", // Calls OsConstants.initConstants. 1747 "Landroid/media/MediaMuxer;", // Calls OsConstants.initConstants. 1748 "Landroid/media/MediaPlayer;", // Calls System.loadLibrary. 1749 "Landroid/media/MediaRecorder;", // Calls System.loadLibrary. 1750 "Landroid/media/MediaScanner;", // Calls System.loadLibrary. 1751 "Landroid/media/ResampleInputStream;", // Calls OsConstants.initConstants. 1752 "Landroid/media/SoundPool;", // Calls OsConstants.initConstants. 1753 "Landroid/media/videoeditor/MediaArtistNativeHelper;", // Calls OsConstants.initConstants. 1754 "Landroid/media/videoeditor/VideoEditorProfile;", // Calls OsConstants.initConstants. 1755 "Landroid/mtp/MtpDatabase;", // Calls OsConstants.initConstants. 1756 "Landroid/mtp/MtpDevice;", // Calls OsConstants.initConstants. 1757 "Landroid/mtp/MtpServer;", // Calls OsConstants.initConstants. 1758 "Landroid/net/NetworkInfo;", // Calls java.util.EnumMap.<init> -> java.lang.Enum.getSharedConstants -> System.identityHashCode. 1759 "Landroid/net/Proxy;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1760 "Landroid/net/SSLCertificateSocketFactory;", // Requires javax.net.ssl.HttpsURLConnection. 1761 "Landroid/net/Uri$AbstractHierarchicalUri;", // Requires Uri. 1762 "Landroid/net/Uri$HierarchicalUri;", // Requires Uri. 1763 "Landroid/net/Uri$OpaqueUri;", // Requires Uri. 1764 "Landroid/net/Uri$StringUri;", // Requires Uri. 1765 "Landroid/net/Uri;", // Calls Class.getSimpleName -> Class.isAnonymousClass -> Class.getDex. 1766 "Landroid/net/WebAddress;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1767 "Landroid/net/wifi/WifiNative;", // Calls new LocalLog -> new Time -> TimeZone -> Pattern.compile. 1768 "Landroid/nfc/NdefRecord;", // Calls String.getBytes -> java.nio.charset.Charset. 1769 "Landroid/opengl/EGL14;", // Calls android.opengl.EGL14._nativeClassInit. 1770 "Landroid/opengl/GLES10;", // Calls android.opengl.GLES10._nativeClassInit. 1771 "Landroid/opengl/GLES10Ext;", // Calls android.opengl.GLES10Ext._nativeClassInit. 1772 "Landroid/opengl/GLES11;", // Requires GLES10. 1773 "Landroid/opengl/GLES11Ext;", // Calls android.opengl.GLES11Ext._nativeClassInit. 1774 "Landroid/opengl/GLES20;", // Calls android.opengl.GLES20._nativeClassInit. 1775 "Landroid/opengl/GLUtils;", // Calls android.opengl.GLUtils.nativeClassInit. 1776 "Landroid/os/Build;", // Calls -..-> android.os.SystemProperties.native_get. 1777 "Landroid/os/Build$VERSION;", // Requires Build. 1778 "Landroid/os/Bundle;", // Calls android.os.Parcel.obtain -..> Parcel.nativeCreate. 1779 "Landroid/os/Debug;", // Requires android.os.Environment. 1780 "Landroid/os/Environment;", // Calls System.getenv. 1781 "Landroid/os/FileUtils;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1782 "Landroid/os/StrictMode;", // Calls android.util.Log.isLoggable. 1783 "Landroid/os/StrictMode$VmPolicy;", // Requires StrictMode. 1784 "Landroid/os/Trace;", // Calls android.os.Trace.nativeGetEnabledTags. 1785 "Landroid/os/UEventObserver;", // Calls Class.getSimpleName -> Class.isAnonymousClass -> Class.getDex. 1786 "Landroid/provider/ContactsContract;", // Calls OsConstants.initConstants. 1787 "Landroid/provider/Settings$Global;", // Calls OsConstants.initConstants. 1788 "Landroid/provider/Settings$Secure;", // Requires android.net.Uri. 1789 "Landroid/provider/Settings$System;", // Requires android.net.Uri. 1790 "Landroid/renderscript/RenderScript;", // Calls System.loadLibrary. 1791 "Landroid/server/BluetoothService;", // Calls android.server.BluetoothService.classInitNative. 1792 "Landroid/server/BluetoothEventLoop;", // Calls android.server.BluetoothEventLoop.classInitNative. 1793 "Landroid/telephony/PhoneNumberUtils;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1794 "Landroid/telephony/TelephonyManager;", // Calls OsConstants.initConstants. 1795 "Landroid/text/AutoText;", // Requires android.util.DisplayMetrics -..-> android.os.SystemProperties.native_get_int. 1796 "Landroid/text/Layout;", // Calls com.android.internal.util.ArrayUtils.emptyArray -> System.identityHashCode. 1797 "Landroid/text/BoringLayout;", // Requires Layout. 1798 "Landroid/text/DynamicLayout;", // Requires Layout. 1799 "Landroid/text/Html$HtmlParser;", // Calls -..-> String.toLowerCase -> java.util.Locale. 1800 "Landroid/text/StaticLayout;", // Requires Layout. 1801 "Landroid/text/TextUtils;", // Requires android.util.DisplayMetrics. 1802 "Landroid/util/DisplayMetrics;", // Calls SystemProperties.native_get_int. 1803 "Landroid/util/Patterns;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1804 "Landroid/view/Choreographer;", // Calls SystemProperties.native_get_boolean. 1805 "Landroid/util/Patterns;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1806 "Landroid/view/GLES20Canvas;", // Calls GLES20Canvas.nIsAvailable(). 1807 "Landroid/view/GLES20RecordingCanvas;", // Requires android.view.GLES20Canvas. 1808 "Landroid/view/GestureDetector;", // Calls android.view.GLES20Canvas.nIsAvailable. 1809 "Landroid/view/HardwareRenderer$Gl20Renderer;", // Requires SystemProperties.native_get. 1810 "Landroid/view/HardwareRenderer$GlRenderer;", // Requires SystemProperties.native_get. 1811 "Landroid/view/InputEventConsistencyVerifier;", // Requires android.os.Build. 1812 "Landroid/view/Surface;", // Requires SystemProperties.native_get. 1813 "Landroid/view/SurfaceControl;", // Calls OsConstants.initConstants. 1814 "Landroid/view/animation/AlphaAnimation;", // Requires Animation. 1815 "Landroid/view/animation/Animation;", // Calls SystemProperties.native_get_boolean. 1816 "Landroid/view/animation/AnimationSet;", // Calls OsConstants.initConstants. 1817 "Landroid/view/textservice/SpellCheckerSubtype;", // Calls Class.getDex(). 1818 "Landroid/webkit/JniUtil;", // Calls System.loadLibrary. 1819 "Landroid/webkit/PluginManager;", // // Calls OsConstants.initConstants. 1820 "Landroid/webkit/WebViewCore;", // Calls System.loadLibrary. 1821 "Landroid/webkit/WebViewFactory;", // Calls -..-> android.os.SystemProperties.native_get. 1822 "Landroid/webkit/WebViewFactory$Preloader;", // Calls to Class.forName. 1823 "Landroid/webkit/WebViewInputDispatcher;", // Calls Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1824 "Landroid/webkit/URLUtil;", // Calls Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1825 "Landroid/widget/AutoCompleteTextView;", // Requires TextView. 1826 "Landroid/widget/Button;", // Requires TextView. 1827 "Landroid/widget/CheckBox;", // Requires TextView. 1828 "Landroid/widget/CheckedTextView;", // Requires TextView. 1829 "Landroid/widget/CompoundButton;", // Requires TextView. 1830 "Landroid/widget/EditText;", // Requires TextView. 1831 "Landroid/widget/NumberPicker;", // Requires java.util.Locale. 1832 "Landroid/widget/ScrollBarDrawable;", // Sub-class of Drawable. 1833 "Landroid/widget/SearchView$SearchAutoComplete;", // Requires TextView. 1834 "Landroid/widget/Switch;", // Requires TextView. 1835 "Landroid/widget/TextView;", // Calls Paint.<init> -> Paint.native_init. 1836 "Lcom/android/i18n/phonenumbers/AsYouTypeFormatter;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1837 "Lcom/android/i18n/phonenumbers/MetadataManager;", // Calls OsConstants.initConstants. 1838 "Lcom/android/i18n/phonenumbers/PhoneNumberMatcher;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1839 "Lcom/android/i18n/phonenumbers/PhoneNumberUtil;", // Requires java.util.logging.LogManager. 1840 "Lcom/android/i18n/phonenumbers/geocoding/AreaCodeMap;", // Calls OsConstants.initConstants. 1841 "Lcom/android/i18n/phonenumbers/geocoding/PhoneNumberOfflineGeocoder;", // Calls OsConstants.initConstants. 1842 "Lcom/android/internal/os/SamplingProfilerIntegration;", // Calls SystemProperties.native_get_int. 1843 "Lcom/android/internal/policy/impl/PhoneWindow;", // Calls android.os.Binder.init. 1844 "Lcom/android/internal/view/menu/ActionMenuItemView;", // Requires TextView. 1845 "Lcom/android/internal/widget/DialogTitle;", // Requires TextView. 1846 "Lcom/android/org/bouncycastle/asn1/StreamUtil;", // Calls Runtime.getRuntime().maxMemory(). 1847 "Lcom/android/org/bouncycastle/asn1/pkcs/MacData;", // Calls native ... -> java.math.NativeBN.BN_new(). 1848 "Lcom/android/org/bouncycastle/asn1/pkcs/RSASSAPSSparams;", // Calls native ... -> java.math.NativeBN.BN_new(). 1849 "Lcom/android/org/bouncycastle/asn1/cms/SignedData;", // Calls native ... -> java.math.NativeBN.BN_new(). 1850 "Lcom/android/org/bouncycastle/asn1/x509/GeneralSubtree;", // Calls native ... -> java.math.NativeBN.BN_new(). 1851 "Lcom/android/org/bouncycastle/asn1/x9/X9ECParameters;", // Calls native ... -> java.math.NativeBN.BN_new(). 1852 "Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$MD5;", // Requires com.android.org.conscrypt.NativeCrypto. 1853 "Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$SHA1;", // Requires com.android.org.conscrypt.NativeCrypto. 1854 "Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$SHA256;", // Requires com.android.org.conscrypt.NativeCrypto. 1855 "Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$SHA384;", // Requires com.android.org.conscrypt.NativeCrypto. 1856 "Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$SHA512;", // Requires com.android.org.conscrypt.NativeCrypto. 1857 "Lcom/android/org/bouncycastle/crypto/engines/RSABlindedEngine;", // Calls native ... -> java.math.NativeBN.BN_new(). 1858 "Lcom/android/org/bouncycastle/crypto/generators/DHKeyGeneratorHelper;", // Calls native ... -> java.math.NativeBN.BN_new(). 1859 "Lcom/android/org/bouncycastle/crypto/generators/DHParametersGenerator;", // Calls native ... -> java.math.NativeBN.BN_new(). 1860 "Lcom/android/org/bouncycastle/crypto/generators/DHParametersHelper;", // Calls System.getenv -> OsConstants.initConstants. 1861 "Lcom/android/org/bouncycastle/crypto/generators/DSAKeyPairGenerator;", // Calls native ... -> java.math.NativeBN.BN_new(). 1862 "Lcom/android/org/bouncycastle/crypto/generators/DSAParametersGenerator;", // Calls native ... -> java.math.NativeBN.BN_new(). 1863 "Lcom/android/org/bouncycastle/crypto/generators/RSAKeyPairGenerator;", // Calls native ... -> java.math.NativeBN.BN_new(). 1864 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;", // Calls OsConstants.initConstants. 1865 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/dsa/KeyPairGeneratorSpi;", // Calls OsConstants.initConstants. 1866 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$EC;", // Calls OsConstants.initConstants. 1867 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$ECDH;", // Calls OsConstants.initConstants. 1868 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$ECDHC;", // Calls OsConstants.initConstants. 1869 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$ECDSA;", // Calls OsConstants.initConstants. 1870 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$ECMQV;", // Calls OsConstants.initConstants. 1871 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi;", // Calls OsConstants.initConstants. 1872 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/rsa/BCRSAPrivateCrtKey;", // Calls native ... -> java.math.NativeBN.BN_new(). 1873 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/rsa/BCRSAPrivateKey;", // Calls native ... -> java.math.NativeBN.BN_new(). 1874 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/rsa/KeyPairGeneratorSpi;", // Calls OsConstants.initConstants. 1875 "Lcom/android/org/bouncycastle/jcajce/provider/keystore/pkcs12/PKCS12KeyStoreSpi$BCPKCS12KeyStore;", // Calls Thread.currentThread. 1876 "Lcom/android/org/bouncycastle/jcajce/provider/keystore/pkcs12/PKCS12KeyStoreSpi;", // Calls Thread.currentThread. 1877 "Lcom/android/org/bouncycastle/jce/PKCS10CertificationRequest;", // Calls native ... -> java.math.NativeBN.BN_new(). 1878 "Lcom/android/org/bouncycastle/jce/provider/CertBlacklist;", // Calls System.getenv -> OsConstants.initConstants. 1879 "Lcom/android/org/bouncycastle/jce/provider/JCERSAPrivateCrtKey;", // Calls native ... -> java.math.NativeBN.BN_new(). 1880 "Lcom/android/org/bouncycastle/jce/provider/JCERSAPrivateKey;", // Calls native ... -> java.math.NativeBN.BN_new(). 1881 "Lcom/android/org/bouncycastle/jce/provider/PKIXCertPathValidatorSpi;", // Calls System.getenv -> OsConstants.initConstants. 1882 "Lcom/android/org/bouncycastle/math/ec/ECConstants;", // Calls native ... -> java.math.NativeBN.BN_new(). 1883 "Lcom/android/org/bouncycastle/math/ec/Tnaf;", // Calls native ... -> java.math.NativeBN.BN_new(). 1884 "Lcom/android/org/bouncycastle/util/BigIntegers;", // Calls native ... -> java.math.NativeBN.BN_new(). 1885 "Lcom/android/org/bouncycastle/x509/X509Util;", // Calls native ... -> java.math.NativeBN.BN_new(). 1886 "Lcom/android/org/conscrypt/CipherSuite;", // Calls OsConstants.initConstants. 1887 "Lcom/android/org/conscrypt/FileClientSessionCache$CacheFile;", // Calls OsConstants.initConstants. 1888 "Lcom/android/org/conscrypt/HandshakeIODataStream;", // Calls OsConstants.initConstants. 1889 "Lcom/android/org/conscrypt/Logger;", // Calls OsConstants.initConstants. 1890 "Lcom/android/org/conscrypt/NativeCrypto;", // Calls native NativeCrypto.clinit(). 1891 "Lcom/android/org/conscrypt/OpenSSLECKeyPairGenerator;", // Calls OsConstants.initConstants. 1892 "Lcom/android/org/conscrypt/OpenSSLEngine;", // Requires com.android.org.conscrypt.NativeCrypto. 1893 "Lcom/android/org/conscrypt/OpenSSLMac$HmacMD5;", // Calls native NativeCrypto.clinit(). 1894 "Lcom/android/org/conscrypt/OpenSSLMac$HmacSHA1;", // Calls native NativeCrypto.clinit(). 1895 "Lcom/android/org/conscrypt/OpenSSLMac$HmacSHA256;", // Calls native NativeCrypto.clinit(). 1896 "Lcom/android/org/conscrypt/OpenSSLMac$HmacSHA384;", // Calls native NativeCrypto.clinit(). 1897 "Lcom/android/org/conscrypt/OpenSSLMac$HmacSHA512;", // Calls native NativeCrypto.clinit(). 1898 "Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$MD5;", // Requires com.android.org.conscrypt.NativeCrypto. 1899 "Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$SHA1;", // Requires com.android.org.conscrypt.NativeCrypto. 1900 "Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$SHA256;", // Requires com.android.org.conscrypt.NativeCrypto. 1901 "Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$SHA384;", // Requires com.android.org.conscrypt.NativeCrypto. 1902 "Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$SHA512;", // Requires com.android.org.conscrypt.NativeCrypto. 1903 "Lcom/android/org/conscrypt/OpenSSLX509CertPath;", // Calls OsConstants.initConstants. 1904 "Lcom/android/org/conscrypt/OpenSSLX509CertificateFactory;", // Calls OsConstants.initConstants. 1905 "Lcom/android/org/conscrypt/PRF;", // Calls OsConstants.initConstants. 1906 "Lcom/android/org/conscrypt/SSLSessionImpl;", // Calls OsConstants.initConstants. 1907 "Lcom/android/org/conscrypt/TrustedCertificateStore;", // Calls System.getenv -> OsConstants.initConstants. 1908 "Lcom/android/okhttp/ConnectionPool;", // Calls OsConstants.initConstants. 1909 "Lcom/android/okhttp/OkHttpClient;", // Calls OsConstants.initConstants. 1910 "Lcom/android/okhttp/internal/DiskLruCache;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1911 "Lcom/android/okhttp/internal/Util;", // Calls OsConstants.initConstants. 1912 "Lcom/android/okhttp/internal/http/HttpsURLConnectionImpl;", // Calls VMClassLoader.getBootClassPathSize. 1913 "Lcom/android/okhttp/internal/spdy/SpdyConnection;", // Calls OsConstants.initConstants. 1914 "Lcom/android/okhttp/internal/spdy/SpdyReader;", // Calls OsConstants.initConstants. 1915 "Lcom/android/okhttp/internal/tls/OkHostnameVerifier;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1916 "Lcom/google/android/gles_jni/EGLContextImpl;", // Calls com.google.android.gles_jni.EGLImpl._nativeClassInit. 1917 "Lcom/google/android/gles_jni/EGLImpl;", // Calls com.google.android.gles_jni.EGLImpl._nativeClassInit. 1918 "Lcom/google/android/gles_jni/GLImpl;", // Calls com.google.android.gles_jni.GLImpl._nativeClassInit. 1919 "Lgov/nist/core/GenericObject;", // Calls OsConstants.initConstants. 1920 "Lgov/nist/core/Host;", // Calls OsConstants.initConstants. 1921 "Lgov/nist/core/HostPort;", // Calls OsConstants.initConstants. 1922 "Lgov/nist/core/NameValue;", // Calls OsConstants.initConstants. 1923 "Lgov/nist/core/net/DefaultNetworkLayer;", // Calls OsConstants.initConstants. 1924 "Lgov/nist/javax/sip/Utils;", // Calls OsConstants.initConstants. 1925 "Lgov/nist/javax/sip/address/AddressImpl;", // Calls OsConstants.initConstants. 1926 "Lgov/nist/javax/sip/address/Authority;", // Calls OsConstants.initConstants. 1927 "Lgov/nist/javax/sip/address/GenericURI;", // Calls OsConstants.initConstants. 1928 "Lgov/nist/javax/sip/address/NetObject;", // Calls OsConstants.initConstants. 1929 "Lgov/nist/javax/sip/address/SipUri;", // Calls OsConstants.initConstants. 1930 "Lgov/nist/javax/sip/address/TelephoneNumber;", // Calls OsConstants.initConstants. 1931 "Lgov/nist/javax/sip/address/UserInfo;", // Calls OsConstants.initConstants. 1932 "Lgov/nist/javax/sip/header/Accept;", // Calls OsConstants.initConstants. 1933 "Lgov/nist/javax/sip/header/AcceptEncoding;", // Calls OsConstants.initConstants. 1934 "Lgov/nist/javax/sip/header/AcceptLanguage;", // Calls OsConstants.initConstants. 1935 "Lgov/nist/javax/sip/header/AddressParametersHeader;", // Calls OsConstants.initConstants. 1936 "Lgov/nist/javax/sip/header/AlertInfoList;", // Calls OsConstants.initConstants. 1937 "Lgov/nist/javax/sip/header/AllowEvents;", // Calls OsConstants.initConstants. 1938 "Lgov/nist/javax/sip/header/AllowEventsList;", // Calls OsConstants.initConstants. 1939 "Lgov/nist/javax/sip/header/AuthenticationInfo;", // Calls OsConstants.initConstants. 1940 "Lgov/nist/javax/sip/header/Authorization;", // Calls OsConstants.initConstants. 1941 "Lgov/nist/javax/sip/header/CSeq;", // Calls OsConstants.initConstants. 1942 "Lgov/nist/javax/sip/header/CallIdentifier;", // Calls OsConstants.initConstants. 1943 "Lgov/nist/javax/sip/header/Challenge;", // Calls OsConstants.initConstants. 1944 "Lgov/nist/javax/sip/header/ContactList;", // Calls OsConstants.initConstants. 1945 "Lgov/nist/javax/sip/header/ContentEncoding;", // Calls OsConstants.initConstants. 1946 "Lgov/nist/javax/sip/header/ContentEncodingList;", // Calls OsConstants.initConstants. 1947 "Lgov/nist/javax/sip/header/ContentLanguageList;", // Calls OsConstants.initConstants. 1948 "Lgov/nist/javax/sip/header/ContentType;", // Calls OsConstants.initConstants. 1949 "Lgov/nist/javax/sip/header/Credentials;", // Calls OsConstants.initConstants. 1950 "Lgov/nist/javax/sip/header/ErrorInfoList;", // Calls OsConstants.initConstants. 1951 "Lgov/nist/javax/sip/header/Expires;", // Calls OsConstants.initConstants. 1952 "Lgov/nist/javax/sip/header/From;", // Calls OsConstants.initConstants. 1953 "Lgov/nist/javax/sip/header/MimeVersion;", // Calls OsConstants.initConstants. 1954 "Lgov/nist/javax/sip/header/NameMap;", // Calls OsConstants.initConstants. 1955 "Lgov/nist/javax/sip/header/Priority;", // Calls OsConstants.initConstants. 1956 "Lgov/nist/javax/sip/header/Protocol;", // Calls OsConstants.initConstants. 1957 "Lgov/nist/javax/sip/header/ProxyAuthenticate;", // Calls OsConstants.initConstants. 1958 "Lgov/nist/javax/sip/header/ProxyAuthenticateList;", // Calls OsConstants.initConstants. 1959 "Lgov/nist/javax/sip/header/ProxyAuthorizationList;", // Calls OsConstants.initConstants. 1960 "Lgov/nist/javax/sip/header/ProxyRequire;", // Calls OsConstants.initConstants. 1961 "Lgov/nist/javax/sip/header/ProxyRequireList;", // Calls OsConstants.initConstants. 1962 "Lgov/nist/javax/sip/header/RSeq;", // Calls OsConstants.initConstants. 1963 "Lgov/nist/javax/sip/header/RecordRoute;", // Calls OsConstants.initConstants. 1964 "Lgov/nist/javax/sip/header/ReferTo;", // Calls OsConstants.initConstants. 1965 "Lgov/nist/javax/sip/header/RequestLine;", // Calls OsConstants.initConstants. 1966 "Lgov/nist/javax/sip/header/Require;", // Calls OsConstants.initConstants. 1967 "Lgov/nist/javax/sip/header/RetryAfter;", // Calls OsConstants.initConstants. 1968 "Lgov/nist/javax/sip/header/SIPETag;", // Calls OsConstants.initConstants. 1969 "Lgov/nist/javax/sip/header/SIPHeader;", // Calls OsConstants.initConstants. 1970 "Lgov/nist/javax/sip/header/SIPHeaderNamesCache;", // Calls OsConstants.initConstants. 1971 "Lgov/nist/javax/sip/header/StatusLine;", // Calls OsConstants.initConstants. 1972 "Lgov/nist/javax/sip/header/SubscriptionState;", // Calls OsConstants.initConstants. 1973 "Lgov/nist/javax/sip/header/TimeStamp;", // Calls OsConstants.initConstants. 1974 "Lgov/nist/javax/sip/header/UserAgent;", // Calls OsConstants.initConstants. 1975 "Lgov/nist/javax/sip/header/Unsupported;", // Calls OsConstants.initConstants. 1976 "Lgov/nist/javax/sip/header/Warning;", // Calls OsConstants.initConstants. 1977 "Lgov/nist/javax/sip/header/ViaList;", // Calls OsConstants.initConstants. 1978 "Lgov/nist/javax/sip/header/extensions/Join;", // Calls OsConstants.initConstants. 1979 "Lgov/nist/javax/sip/header/extensions/References;", // Calls OsConstants.initConstants. 1980 "Lgov/nist/javax/sip/header/extensions/Replaces;", // Calls OsConstants.initConstants. 1981 "Lgov/nist/javax/sip/header/ims/PAccessNetworkInfo;", // Calls OsConstants.initConstants. 1982 "Lgov/nist/javax/sip/header/ims/PAssertedIdentity;", // Calls OsConstants.initConstants. 1983 "Lgov/nist/javax/sip/header/ims/PAssertedIdentityList;", // Calls OsConstants.initConstants. 1984 "Lgov/nist/javax/sip/header/ims/PAssociatedURI;", // Calls OsConstants.initConstants. 1985 "Lgov/nist/javax/sip/header/ims/PCalledPartyID;", // Calls OsConstants.initConstants. 1986 "Lgov/nist/javax/sip/header/ims/PChargingVector;", // Calls OsConstants.initConstants. 1987 "Lgov/nist/javax/sip/header/ims/PPreferredIdentity;", // Calls OsConstants.initConstants. 1988 "Lgov/nist/javax/sip/header/ims/PVisitedNetworkIDList;", // Calls OsConstants.initConstants. 1989 "Lgov/nist/javax/sip/header/ims/PathList;", // Calls OsConstants.initConstants. 1990 "Lgov/nist/javax/sip/header/ims/SecurityAgree;", // Calls OsConstants.initConstants. 1991 "Lgov/nist/javax/sip/header/ims/SecurityClient;", // Calls OsConstants.initConstants. 1992 "Lgov/nist/javax/sip/header/ims/ServiceRoute;", // Calls OsConstants.initConstants. 1993 "Ljava/io/Console;", // Has FileDescriptor(s). 1994 "Ljava/io/File;", // Calls to Random.<init> -> System.currentTimeMillis -> OsConstants.initConstants. 1995 "Ljava/io/FileDescriptor;", // Requires libcore.io.OsConstants. 1996 "Ljava/io/ObjectInputStream;", // Requires java.lang.ClassLoader$SystemClassLoader. 1997 "Ljava/io/ObjectStreamClass;", // Calls to Class.forName -> java.io.FileDescriptor. 1998 "Ljava/io/ObjectStreamConstants;", // Instance of non-image class SerializablePermission. 1999 "Ljava/lang/ClassLoader$SystemClassLoader;", // Calls System.getProperty -> OsConstants.initConstants. 2000 "Ljava/lang/HexStringParser;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 2001 "Ljava/lang/ProcessManager;", // Calls Thread.currentThread. 2002 "Ljava/lang/Runtime;", // Calls System.getProperty -> OsConstants.initConstants. 2003 "Ljava/lang/System;", // Calls OsConstants.initConstants. 2004 "Ljava/math/BigDecimal;", // Calls native ... -> java.math.NativeBN.BN_new(). 2005 "Ljava/math/BigInteger;", // Calls native ... -> java.math.NativeBN.BN_new(). 2006 "Ljava/math/Primality;", // Calls native ... -> java.math.NativeBN.BN_new(). 2007 "Ljava/math/Multiplication;", // Calls native ... -> java.math.NativeBN.BN_new(). 2008 "Ljava/net/InetAddress;", // Requires libcore.io.OsConstants. 2009 "Ljava/net/Inet4Address;", // Sub-class of InetAddress. 2010 "Ljava/net/Inet6Address;", // Sub-class of InetAddress. 2011 "Ljava/net/InetUnixAddress;", // Sub-class of InetAddress. 2012 "Ljava/net/NetworkInterface;", // Calls to Random.<init> -> System.currentTimeMillis -> OsConstants.initConstants. 2013 "Ljava/nio/charset/Charset;", // Calls Charset.getDefaultCharset -> System.getProperty -> OsConstants.initConstants. 2014 "Ljava/nio/charset/CharsetICU;", // Sub-class of Charset. 2015 "Ljava/nio/charset/Charsets;", // Calls Charset.forName. 2016 "Ljava/nio/charset/StandardCharsets;", // Calls OsConstants.initConstants. 2017 "Ljava/security/AlgorithmParameterGenerator;", // Calls OsConstants.initConstants. 2018 "Ljava/security/KeyPairGenerator$KeyPairGeneratorImpl;", // Calls OsConstants.initConstants. 2019 "Ljava/security/KeyPairGenerator;", // Calls OsConstants.initConstants. 2020 "Ljava/security/Security;", // Tries to do disk IO for "security.properties". 2021 "Ljava/security/spec/RSAKeyGenParameterSpec;", // java.math.NativeBN.BN_new() 2022 "Ljava/sql/Date;", // Calls OsConstants.initConstants. 2023 "Ljava/sql/DriverManager;", // Calls OsConstants.initConstants. 2024 "Ljava/sql/Time;", // Calls OsConstants.initConstants. 2025 "Ljava/sql/Timestamp;", // Calls OsConstants.initConstants. 2026 "Ljava/util/Date;", // Calls Date.<init> -> System.currentTimeMillis -> OsConstants.initConstants. 2027 "Ljava/util/ListResourceBundle;", // Calls OsConstants.initConstants. 2028 "Ljava/util/Locale;", // Calls System.getProperty -> OsConstants.initConstants. 2029 "Ljava/util/PropertyResourceBundle;", // Calls OsConstants.initConstants. 2030 "Ljava/util/ResourceBundle;", // Calls OsConstants.initConstants. 2031 "Ljava/util/ResourceBundle$MissingBundle;", // Calls OsConstants.initConstants. 2032 "Ljava/util/Scanner;", // regex.Pattern.compileImpl. 2033 "Ljava/util/SimpleTimeZone;", // Sub-class of TimeZone. 2034 "Ljava/util/TimeZone;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 2035 "Ljava/util/concurrent/ConcurrentHashMap;", // Calls Runtime.getRuntime().availableProcessors(). 2036 "Ljava/util/concurrent/ConcurrentHashMap$Segment;", // Calls Runtime.getRuntime().availableProcessors(). 2037 "Ljava/util/concurrent/ConcurrentSkipListMap;", // Calls Random() -> OsConstants.initConstants. 2038 "Ljava/util/concurrent/Exchanger;", // Calls Runtime.getRuntime().availableProcessors(). 2039 "Ljava/util/concurrent/ForkJoinPool;", // Makes a thread pool ..-> calls OsConstants.initConstants. 2040 "Ljava/util/concurrent/LinkedTransferQueue;", // Calls Runtime.getRuntime().availableProcessors(). 2041 "Ljava/util/concurrent/Phaser;", // Calls Runtime.getRuntime().availableProcessors(). 2042 "Ljava/util/concurrent/ScheduledThreadPoolExecutor;", // Calls AtomicLong.VMSupportsCS8() 2043 "Ljava/util/concurrent/SynchronousQueue;", // Calls Runtime.getRuntime().availableProcessors(). 2044 "Ljava/util/concurrent/atomic/AtomicLong;", // Calls AtomicLong.VMSupportsCS8() 2045 "Ljava/util/logging/LogManager;", // Calls System.getProperty -> OsConstants.initConstants. 2046 "Ljava/util/prefs/AbstractPreferences;", // Calls OsConstants.initConstants. 2047 "Ljava/util/prefs/FilePreferencesImpl;", // Calls OsConstants.initConstants. 2048 "Ljava/util/prefs/FilePreferencesFactoryImpl;", // Calls OsConstants.initConstants. 2049 "Ljava/util/prefs/Preferences;", // Calls OsConstants.initConstants. 2050 "Ljavax/crypto/KeyAgreement;", // Calls OsConstants.initConstants. 2051 "Ljavax/crypto/KeyGenerator;", // Calls OsConstants.initConstants. 2052 "Ljavax/security/cert/X509Certificate;", // Calls VMClassLoader.getBootClassPathSize. 2053 "Ljavax/security/cert/X509Certificate$1;", // Calls VMClassLoader.getBootClassPathSize. 2054 "Ljavax/microedition/khronos/egl/EGL10;", // Requires EGLContext. 2055 "Ljavax/microedition/khronos/egl/EGLContext;", // Requires com.google.android.gles_jni.EGLImpl. 2056 "Ljavax/xml/datatype/DatatypeConstants;", // Calls OsConstants.initConstants. 2057 "Ljavax/xml/datatype/FactoryFinder;", // Calls OsConstants.initConstants. 2058 "Ljavax/xml/namespace/QName;", // Calls OsConstants.initConstants. 2059 "Ljavax/xml/validation/SchemaFactoryFinder;", // Calls OsConstants.initConstants. 2060 "Ljavax/xml/xpath/XPathConstants;", // Calls OsConstants.initConstants. 2061 "Ljavax/xml/xpath/XPathFactoryFinder;", // Calls OsConstants.initConstants. 2062 "Llibcore/icu/LocaleData;", // Requires java.util.Locale. 2063 "Llibcore/icu/TimeZoneNames;", // Requires java.util.TimeZone. 2064 "Llibcore/io/IoUtils;", // Calls Random.<init> -> System.currentTimeMillis -> FileDescriptor -> OsConstants.initConstants. 2065 "Llibcore/io/OsConstants;", // Platform specific. 2066 "Llibcore/net/MimeUtils;", // Calls libcore.net.MimeUtils.getContentTypesPropertiesStream -> System.getProperty. 2067 "Llibcore/reflect/Types;", // Calls OsConstants.initConstants. 2068 "Llibcore/util/ZoneInfo;", // Sub-class of TimeZone. 2069 "Llibcore/util/ZoneInfoDB;", // Calls System.getenv -> OsConstants.initConstants. 2070 "Lorg/apache/commons/logging/LogFactory;", // Calls System.getProperty. 2071 "Lorg/apache/commons/logging/impl/LogFactoryImpl;", // Calls OsConstants.initConstants. 2072 "Lorg/apache/harmony/security/fortress/Services;", // Calls ClassLoader.getSystemClassLoader -> System.getProperty. 2073 "Lorg/apache/harmony/security/provider/cert/X509CertFactoryImpl;", // Requires java.nio.charsets.Charsets. 2074 "Lorg/apache/harmony/security/provider/crypto/RandomBitsSupplier;", // Requires java.io.File. 2075 "Lorg/apache/harmony/security/utils/AlgNameMapper;", // Requires java.util.Locale. 2076 "Lorg/apache/harmony/security/pkcs10/CertificationRequest;", // Calls Thread.currentThread. 2077 "Lorg/apache/harmony/security/pkcs10/CertificationRequestInfo;", // Calls Thread.currentThread. 2078 "Lorg/apache/harmony/security/pkcs7/AuthenticatedAttributes;", // Calls Thread.currentThread. 2079 "Lorg/apache/harmony/security/pkcs7/SignedData;", // Calls Thread.currentThread. 2080 "Lorg/apache/harmony/security/pkcs7/SignerInfo;", // Calls Thread.currentThread. 2081 "Lorg/apache/harmony/security/pkcs8/PrivateKeyInfo;", // Calls Thread.currentThread. 2082 "Lorg/apache/harmony/security/provider/crypto/SHA1PRNG_SecureRandomImpl;", // Calls OsConstants.initConstants. 2083 "Lorg/apache/harmony/security/x501/AttributeTypeAndValue;", // Calls IntegralToString.convertInt -> Thread.currentThread. 2084 "Lorg/apache/harmony/security/x501/DirectoryString;", // Requires BigInteger. 2085 "Lorg/apache/harmony/security/x501/Name;", // Requires org.apache.harmony.security.x501.AttributeTypeAndValue. 2086 "Lorg/apache/harmony/security/x509/AccessDescription;", // Calls Thread.currentThread. 2087 "Lorg/apache/harmony/security/x509/AuthorityKeyIdentifier;", // Calls Thread.currentThread. 2088 "Lorg/apache/harmony/security/x509/CRLDistributionPoints;", // Calls Thread.currentThread. 2089 "Lorg/apache/harmony/security/x509/Certificate;", // Requires org.apache.harmony.security.x509.TBSCertificate. 2090 "Lorg/apache/harmony/security/x509/CertificateIssuer;", // Calls Thread.currentThread. 2091 "Lorg/apache/harmony/security/x509/CertificateList;", // Calls Thread.currentThread. 2092 "Lorg/apache/harmony/security/x509/DistributionPoint;", // Calls Thread.currentThread. 2093 "Lorg/apache/harmony/security/x509/DistributionPointName;", // Calls Thread.currentThread. 2094 "Lorg/apache/harmony/security/x509/EDIPartyName;", // Calls native ... -> java.math.NativeBN.BN_new(). 2095 "Lorg/apache/harmony/security/x509/GeneralName;", // Requires org.apache.harmony.security.x501.Name. 2096 "Lorg/apache/harmony/security/x509/GeneralNames;", // Requires GeneralName. 2097 "Lorg/apache/harmony/security/x509/GeneralSubtree;", // Calls Thread.currentThread. 2098 "Lorg/apache/harmony/security/x509/GeneralSubtrees;", // Calls Thread.currentThread. 2099 "Lorg/apache/harmony/security/x509/InfoAccessSyntax;", // Calls Thread.currentThread. 2100 "Lorg/apache/harmony/security/x509/IssuingDistributionPoint;", // Calls Thread.currentThread. 2101 "Lorg/apache/harmony/security/x509/NameConstraints;", // Calls Thread.currentThread. 2102 "Lorg/apache/harmony/security/x509/TBSCertList$RevokedCertificate;", // Calls NativeBN.BN_new(). 2103 "Lorg/apache/harmony/security/x509/TBSCertList;", // Calls Thread.currentThread. 2104 "Lorg/apache/harmony/security/x509/TBSCertificate;", // Requires org.apache.harmony.security.x501.Name. 2105 "Lorg/apache/harmony/security/x509/Time;", // Calls native ... -> java.math.NativeBN.BN_new(). 2106 "Lorg/apache/harmony/security/x509/Validity;", // Requires x509.Time. 2107 "Lorg/apache/harmony/security/x509/tsp/TSTInfo;", // Calls Thread.currentThread. 2108 "Lorg/apache/harmony/xml/ExpatParser;", // Calls native ExpatParser.staticInitialize. 2109 "Lorg/apache/harmony/xml/ExpatParser$EntityParser;", // Calls ExpatParser.staticInitialize. 2110 "Lorg/apache/http/conn/params/ConnRouteParams;", // Requires java.util.Locale. 2111 "Lorg/apache/http/conn/ssl/SSLSocketFactory;", // Calls java.security.Security.getProperty. 2112 "Lorg/apache/http/conn/util/InetAddressUtils;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 2113}; 2114 2115static void InitializeClass(const ParallelCompilationManager* manager, size_t class_def_index) 2116 LOCKS_EXCLUDED(Locks::mutator_lock_) { 2117 ATRACE_CALL(); 2118 jobject jclass_loader = manager->GetClassLoader(); 2119 const DexFile& dex_file = *manager->GetDexFile(); 2120 const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); 2121 const DexFile::TypeId& class_type_id = dex_file.GetTypeId(class_def.class_idx_); 2122 const char* descriptor = dex_file.StringDataByIdx(class_type_id.descriptor_idx_); 2123 2124 ScopedObjectAccess soa(Thread::Current()); 2125 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), 2126 soa.Decode<mirror::ClassLoader*>(jclass_loader)); 2127 SirtRef<mirror::Class> klass(soa.Self(), 2128 manager->GetClassLinker()->FindClass(descriptor, class_loader)); 2129 2130 if (klass.get() != nullptr && !SkipClass(jclass_loader, dex_file, klass.get())) { 2131 // Only try to initialize classes that were successfully verified. 2132 if (klass->IsVerified()) { 2133 // Attempt to initialize the class but bail if we either need to initialize the super-class 2134 // or static fields. 2135 manager->GetClassLinker()->EnsureInitialized(klass, false, false); 2136 if (!klass->IsInitialized()) { 2137 // We don't want non-trivial class initialization occurring on multiple threads due to 2138 // deadlock problems. For example, a parent class is initialized (holding its lock) that 2139 // refers to a sub-class in its static/class initializer causing it to try to acquire the 2140 // sub-class' lock. While on a second thread the sub-class is initialized (holding its lock) 2141 // after first initializing its parents, whose locks are acquired. This leads to a 2142 // parent-to-child and a child-to-parent lock ordering and consequent potential deadlock. 2143 // We need to use an ObjectLock due to potential suspension in the interpreting code. Rather 2144 // than use a special Object for the purpose we use the Class of java.lang.Class. 2145 SirtRef<mirror::Class> sirt_klass(soa.Self(), klass->GetClass()); 2146 ObjectLock<mirror::Class> lock(soa.Self(), &sirt_klass); 2147 // Attempt to initialize allowing initialization of parent classes but still not static 2148 // fields. 2149 manager->GetClassLinker()->EnsureInitialized(klass, false, true); 2150 if (!klass->IsInitialized()) { 2151 // We need to initialize static fields, we only do this for image classes that aren't 2152 // black listed or marked with the $NoPreloadHolder. 2153 bool can_init_static_fields = manager->GetCompiler()->IsImage() && 2154 manager->GetCompiler()->IsImageClass(descriptor); 2155 if (can_init_static_fields) { 2156 // NoPreloadHolder inner class implies this should not be initialized early. 2157 bool is_black_listed = StringPiece(descriptor).ends_with("$NoPreloadHolder;"); 2158 if (!is_black_listed) { 2159 for (size_t i = 0; i < arraysize(class_initializer_black_list); ++i) { 2160 if (strcmp(descriptor, class_initializer_black_list[i]) == 0) { 2161 is_black_listed = true; 2162 break; 2163 } 2164 } 2165 } 2166 if (!is_black_listed) { 2167 VLOG(compiler) << "Initializing: " << descriptor; 2168 if (strcmp("Ljava/lang/Void;", descriptor) == 0) { 2169 // Hand initialize j.l.Void to avoid Dex file operations in un-started runtime. 2170 ObjectLock<mirror::Class> lock(soa.Self(), &klass); 2171 mirror::ObjectArray<mirror::ArtField>* fields = klass->GetSFields(); 2172 CHECK_EQ(fields->GetLength(), 1); 2173 fields->Get(0)->SetObj(klass.get(), 2174 manager->GetClassLinker()->FindPrimitiveClass('V')); 2175 klass->SetStatus(mirror::Class::kStatusInitialized, soa.Self()); 2176 } else { 2177 manager->GetClassLinker()->EnsureInitialized(klass, true, true); 2178 } 2179 } 2180 } 2181 } 2182 soa.Self()->AssertNoPendingException(); 2183 } 2184 // If successfully initialized place in SSB array. 2185 if (klass->IsInitialized()) { 2186 int32_t ssb_index = klass->GetDexTypeIndex(); 2187 klass->GetDexCache()->GetInitializedStaticStorage()->Set(ssb_index, klass.get()); 2188 } 2189 } 2190 // Record the final class status if necessary. 2191 ClassReference ref(manager->GetDexFile(), class_def_index); 2192 manager->GetCompiler()->RecordClassStatus(ref, klass->GetStatus()); 2193 } 2194 // Clear any class not found or verification exceptions. 2195 soa.Self()->ClearException(); 2196} 2197 2198void CompilerDriver::InitializeClasses(jobject jni_class_loader, const DexFile& dex_file, 2199 ThreadPool& thread_pool, TimingLogger& timings) { 2200 timings.NewSplit("InitializeNoClinit"); 2201#ifndef NDEBUG 2202 // Sanity check blacklist descriptors. 2203 if (IsImage()) { 2204 for (size_t i = 0; i < arraysize(class_initializer_black_list); ++i) { 2205 const char* descriptor = class_initializer_black_list[i]; 2206 CHECK(IsValidDescriptor(descriptor)) << descriptor; 2207 } 2208 } 2209#endif 2210 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 2211 ParallelCompilationManager context(class_linker, jni_class_loader, this, &dex_file, thread_pool); 2212 context.ForAll(0, dex_file.NumClassDefs(), InitializeClass, thread_count_); 2213} 2214 2215void CompilerDriver::InitializeClasses(jobject class_loader, 2216 const std::vector<const DexFile*>& dex_files, 2217 ThreadPool& thread_pool, TimingLogger& timings) { 2218 for (size_t i = 0; i != dex_files.size(); ++i) { 2219 const DexFile* dex_file = dex_files[i]; 2220 CHECK(dex_file != NULL); 2221 InitializeClasses(class_loader, *dex_file, thread_pool, timings); 2222 } 2223} 2224 2225void CompilerDriver::Compile(jobject class_loader, const std::vector<const DexFile*>& dex_files, 2226 ThreadPool& thread_pool, TimingLogger& timings) { 2227 for (size_t i = 0; i != dex_files.size(); ++i) { 2228 const DexFile* dex_file = dex_files[i]; 2229 CHECK(dex_file != NULL); 2230 CompileDexFile(class_loader, *dex_file, thread_pool, timings); 2231 } 2232} 2233 2234void CompilerDriver::CompileClass(const ParallelCompilationManager* manager, size_t class_def_index) { 2235 ATRACE_CALL(); 2236 jobject jclass_loader = manager->GetClassLoader(); 2237 const DexFile& dex_file = *manager->GetDexFile(); 2238 const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); 2239 ClassLinker* class_linker = manager->GetClassLinker(); 2240 if (SkipClass(class_linker, jclass_loader, dex_file, class_def)) { 2241 return; 2242 } 2243 ClassReference ref(&dex_file, class_def_index); 2244 // Skip compiling classes with generic verifier failures since they will still fail at runtime 2245 if (verifier::MethodVerifier::IsClassRejected(ref)) { 2246 return; 2247 } 2248 const byte* class_data = dex_file.GetClassData(class_def); 2249 if (class_data == NULL) { 2250 // empty class, probably a marker interface 2251 return; 2252 } 2253 2254 // Can we run DEX-to-DEX compiler on this class ? 2255 DexToDexCompilationLevel dex_to_dex_compilation_level = kDontDexToDexCompile; 2256 { 2257 ScopedObjectAccess soa(Thread::Current()); 2258 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), 2259 soa.Decode<mirror::ClassLoader*>(jclass_loader)); 2260 dex_to_dex_compilation_level = GetDexToDexCompilationlevel(class_loader, dex_file, class_def); 2261 } 2262 ClassDataItemIterator it(dex_file, class_data); 2263 // Skip fields 2264 while (it.HasNextStaticField()) { 2265 it.Next(); 2266 } 2267 while (it.HasNextInstanceField()) { 2268 it.Next(); 2269 } 2270 CompilerDriver* driver = manager->GetCompiler(); 2271 // Compile direct methods 2272 int64_t previous_direct_method_idx = -1; 2273 while (it.HasNextDirectMethod()) { 2274 uint32_t method_idx = it.GetMemberIndex(); 2275 if (method_idx == previous_direct_method_idx) { 2276 // smali can create dex files with two encoded_methods sharing the same method_idx 2277 // http://code.google.com/p/smali/issues/detail?id=119 2278 it.Next(); 2279 continue; 2280 } 2281 previous_direct_method_idx = method_idx; 2282 driver->CompileMethod(it.GetMethodCodeItem(), it.GetMemberAccessFlags(), 2283 it.GetMethodInvokeType(class_def), class_def_index, 2284 method_idx, jclass_loader, dex_file, dex_to_dex_compilation_level); 2285 it.Next(); 2286 } 2287 // Compile virtual methods 2288 int64_t previous_virtual_method_idx = -1; 2289 while (it.HasNextVirtualMethod()) { 2290 uint32_t method_idx = it.GetMemberIndex(); 2291 if (method_idx == previous_virtual_method_idx) { 2292 // smali can create dex files with two encoded_methods sharing the same method_idx 2293 // http://code.google.com/p/smali/issues/detail?id=119 2294 it.Next(); 2295 continue; 2296 } 2297 previous_virtual_method_idx = method_idx; 2298 driver->CompileMethod(it.GetMethodCodeItem(), it.GetMemberAccessFlags(), 2299 it.GetMethodInvokeType(class_def), class_def_index, 2300 method_idx, jclass_loader, dex_file, dex_to_dex_compilation_level); 2301 it.Next(); 2302 } 2303 DCHECK(!it.HasNext()); 2304} 2305 2306void CompilerDriver::CompileDexFile(jobject class_loader, const DexFile& dex_file, 2307 ThreadPool& thread_pool, TimingLogger& timings) { 2308 timings.NewSplit("Compile Dex File"); 2309 ParallelCompilationManager context(Runtime::Current()->GetClassLinker(), class_loader, this, 2310 &dex_file, thread_pool); 2311 context.ForAll(0, dex_file.NumClassDefs(), CompilerDriver::CompileClass, thread_count_); 2312} 2313 2314void CompilerDriver::CompileMethod(const DexFile::CodeItem* code_item, uint32_t access_flags, 2315 InvokeType invoke_type, uint16_t class_def_idx, 2316 uint32_t method_idx, jobject class_loader, 2317 const DexFile& dex_file, 2318 DexToDexCompilationLevel dex_to_dex_compilation_level) { 2319 CompiledMethod* compiled_method = NULL; 2320 uint64_t start_ns = NanoTime(); 2321 2322 if ((access_flags & kAccNative) != 0) { 2323 compiled_method = (*jni_compiler_)(*this, access_flags, method_idx, dex_file); 2324 CHECK(compiled_method != NULL); 2325 } else if ((access_flags & kAccAbstract) != 0) { 2326 } else { 2327 MethodReference method_ref(&dex_file, method_idx); 2328 bool compile = verifier::MethodVerifier::IsCandidateForCompilation(method_ref, access_flags); 2329 2330 if (compile) { 2331 CompilerFn compiler = compiler_; 2332#ifdef ART_SEA_IR_MODE 2333 bool use_sea = Runtime::Current()->IsSeaIRMode(); 2334 use_sea = use_sea && 2335 (std::string::npos != PrettyMethod(method_idx, dex_file).find("fibonacci")); 2336 if (use_sea) { 2337 compiler = sea_ir_compiler_; 2338 LOG(INFO) << "Using SEA IR to compile..." << std::endl; 2339 } 2340#endif 2341 // NOTE: if compiler declines to compile this method, it will return NULL. 2342 compiled_method = (*compiler)(*this, code_item, access_flags, invoke_type, class_def_idx, 2343 method_idx, class_loader, dex_file); 2344 } else if (dex_to_dex_compilation_level != kDontDexToDexCompile) { 2345 // TODO: add a mode to disable DEX-to-DEX compilation ? 2346 (*dex_to_dex_compiler_)(*this, code_item, access_flags, 2347 invoke_type, class_def_idx, 2348 method_idx, class_loader, dex_file, 2349 dex_to_dex_compilation_level); 2350 } 2351 } 2352 uint64_t duration_ns = NanoTime() - start_ns; 2353#ifdef ART_USE_PORTABLE_COMPILER 2354 const uint64_t kWarnMilliSeconds = 1000; 2355#else 2356 const uint64_t kWarnMilliSeconds = 100; 2357#endif 2358 if (duration_ns > MsToNs(kWarnMilliSeconds)) { 2359 LOG(WARNING) << "Compilation of " << PrettyMethod(method_idx, dex_file) 2360 << " took " << PrettyDuration(duration_ns); 2361 } 2362 2363 Thread* self = Thread::Current(); 2364 if (compiled_method != NULL) { 2365 MethodReference ref(&dex_file, method_idx); 2366 DCHECK(GetCompiledMethod(ref) == NULL) << PrettyMethod(method_idx, dex_file); 2367 { 2368 MutexLock mu(self, compiled_methods_lock_); 2369 compiled_methods_.Put(ref, compiled_method); 2370 } 2371 DCHECK(GetCompiledMethod(ref) != NULL) << PrettyMethod(method_idx, dex_file); 2372 } 2373 2374 if (self->IsExceptionPending()) { 2375 ScopedObjectAccess soa(self); 2376 LOG(FATAL) << "Unexpected exception compiling: " << PrettyMethod(method_idx, dex_file) << "\n" 2377 << self->GetException(NULL)->Dump(); 2378 } 2379} 2380 2381CompiledClass* CompilerDriver::GetCompiledClass(ClassReference ref) const { 2382 MutexLock mu(Thread::Current(), compiled_classes_lock_); 2383 ClassTable::const_iterator it = compiled_classes_.find(ref); 2384 if (it == compiled_classes_.end()) { 2385 return NULL; 2386 } 2387 CHECK(it->second != NULL); 2388 return it->second; 2389} 2390 2391void CompilerDriver::RecordClassStatus(ClassReference ref, mirror::Class::Status status) { 2392 MutexLock mu(Thread::Current(), compiled_classes_lock_); 2393 auto it = compiled_classes_.find(ref); 2394 if (it == compiled_classes_.end() || it->second->GetStatus() != status) { 2395 // An entry doesn't exist or the status is lower than the new status. 2396 if (it != compiled_classes_.end()) { 2397 CHECK_GT(status, it->second->GetStatus()); 2398 delete it->second; 2399 } 2400 switch (status) { 2401 case mirror::Class::kStatusNotReady: 2402 case mirror::Class::kStatusError: 2403 case mirror::Class::kStatusRetryVerificationAtRuntime: 2404 case mirror::Class::kStatusVerified: 2405 case mirror::Class::kStatusInitialized: 2406 break; // Expected states. 2407 default: 2408 LOG(FATAL) << "Unexpected class status for class " 2409 << PrettyDescriptor(ref.first->GetClassDescriptor(ref.first->GetClassDef(ref.second))) 2410 << " of " << status; 2411 } 2412 CompiledClass* compiled_class = new CompiledClass(status); 2413 compiled_classes_.Overwrite(ref, compiled_class); 2414 } 2415} 2416 2417CompiledMethod* CompilerDriver::GetCompiledMethod(MethodReference ref) const { 2418 MutexLock mu(Thread::Current(), compiled_methods_lock_); 2419 MethodTable::const_iterator it = compiled_methods_.find(ref); 2420 if (it == compiled_methods_.end()) { 2421 return NULL; 2422 } 2423 CHECK(it->second != NULL); 2424 return it->second; 2425} 2426 2427void CompilerDriver::SetBitcodeFileName(std::string const& filename) { 2428 typedef void (*SetBitcodeFileNameFn)(CompilerDriver&, std::string const&); 2429 2430 SetBitcodeFileNameFn set_bitcode_file_name = 2431 reinterpret_cast<SetBitcodeFileNameFn>(compilerLLVMSetBitcodeFileName); 2432 2433 set_bitcode_file_name(*this, filename); 2434} 2435 2436 2437void CompilerDriver::AddRequiresConstructorBarrier(Thread* self, const DexFile* dex_file, 2438 uint16_t class_def_index) { 2439 WriterMutexLock mu(self, freezing_constructor_lock_); 2440 freezing_constructor_classes_.insert(ClassReference(dex_file, class_def_index)); 2441} 2442 2443bool CompilerDriver::RequiresConstructorBarrier(Thread* self, const DexFile* dex_file, 2444 uint16_t class_def_index) { 2445 ReaderMutexLock mu(self, freezing_constructor_lock_); 2446 return freezing_constructor_classes_.count(ClassReference(dex_file, class_def_index)) != 0; 2447} 2448 2449bool CompilerDriver::WriteElf(const std::string& android_root, 2450 bool is_host, 2451 const std::vector<const art::DexFile*>& dex_files, 2452 OatWriter& oat_writer, 2453 art::File* file) 2454 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 2455#if defined(ART_USE_PORTABLE_COMPILER) 2456 return art::ElfWriterMclinker::Create(file, oat_writer, dex_files, android_root, is_host, *this); 2457#else 2458 return art::ElfWriterQuick::Create(file, oat_writer, dex_files, android_root, is_host, *this); 2459#endif 2460} 2461void CompilerDriver::InstructionSetToLLVMTarget(InstructionSet instruction_set, 2462 std::string& target_triple, 2463 std::string& target_cpu, 2464 std::string& target_attr) { 2465 switch (instruction_set) { 2466 case kThumb2: 2467 target_triple = "thumb-none-linux-gnueabi"; 2468 target_cpu = "cortex-a9"; 2469 target_attr = "+thumb2,+neon,+neonfp,+vfp3,+db"; 2470 break; 2471 2472 case kArm: 2473 target_triple = "armv7-none-linux-gnueabi"; 2474 // TODO: Fix for Nexus S. 2475 target_cpu = "cortex-a9"; 2476 // TODO: Fix for Xoom. 2477 target_attr = "+v7,+neon,+neonfp,+vfp3,+db"; 2478 break; 2479 2480 case kX86: 2481 target_triple = "i386-pc-linux-gnu"; 2482 target_attr = ""; 2483 break; 2484 2485 case kMips: 2486 target_triple = "mipsel-unknown-linux"; 2487 target_attr = "mips32r2"; 2488 break; 2489 2490 default: 2491 LOG(FATAL) << "Unknown instruction set: " << instruction_set; 2492 } 2493 } 2494} // namespace art 2495