compiler_driver.cc revision c7f832061fea59fd6abd125f26c8ca1faec695a5
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 "dex/verification_results.h" 31#include "jni_internal.h" 32#include "object_utils.h" 33#include "runtime.h" 34#include "gc/accounting/card_table-inl.h" 35#include "gc/accounting/heap_bitmap.h" 36#include "gc/space/space.h" 37#include "mirror/art_field-inl.h" 38#include "mirror/art_method-inl.h" 39#include "mirror/class_loader.h" 40#include "mirror/class-inl.h" 41#include "mirror/dex_cache-inl.h" 42#include "mirror/object-inl.h" 43#include "mirror/object_array-inl.h" 44#include "mirror/throwable.h" 45#include "scoped_thread_state_change.h" 46#include "ScopedLocalRef.h" 47#include "thread.h" 48#include "thread_pool.h" 49#include "trampolines/trampoline_compiler.h" 50#include "verifier/method_verifier.h" 51 52#if defined(ART_USE_PORTABLE_COMPILER) 53#include "elf_writer_mclinker.h" 54#else 55#include "elf_writer_quick.h" 56#endif 57 58namespace art { 59 60static double Percentage(size_t x, size_t y) { 61 return 100.0 * (static_cast<double>(x)) / (static_cast<double>(x + y)); 62} 63 64static void DumpStat(size_t x, size_t y, const char* str) { 65 if (x == 0 && y == 0) { 66 return; 67 } 68 LOG(INFO) << Percentage(x, y) << "% of " << str << " for " << (x + y) << " cases"; 69} 70 71class AOTCompilationStats { 72 public: 73 AOTCompilationStats() 74 : stats_lock_("AOT compilation statistics lock"), 75 types_in_dex_cache_(0), types_not_in_dex_cache_(0), 76 strings_in_dex_cache_(0), strings_not_in_dex_cache_(0), 77 resolved_types_(0), unresolved_types_(0), 78 resolved_instance_fields_(0), unresolved_instance_fields_(0), 79 resolved_local_static_fields_(0), resolved_static_fields_(0), unresolved_static_fields_(0), 80 type_based_devirtualization_(0), 81 safe_casts_(0), not_safe_casts_(0) { 82 for (size_t i = 0; i <= kMaxInvokeType; i++) { 83 resolved_methods_[i] = 0; 84 unresolved_methods_[i] = 0; 85 virtual_made_direct_[i] = 0; 86 direct_calls_to_boot_[i] = 0; 87 direct_methods_to_boot_[i] = 0; 88 } 89 } 90 91 void Dump() { 92 DumpStat(types_in_dex_cache_, types_not_in_dex_cache_, "types known to be in dex cache"); 93 DumpStat(strings_in_dex_cache_, strings_not_in_dex_cache_, "strings known to be in dex cache"); 94 DumpStat(resolved_types_, unresolved_types_, "types resolved"); 95 DumpStat(resolved_instance_fields_, unresolved_instance_fields_, "instance fields resolved"); 96 DumpStat(resolved_local_static_fields_ + resolved_static_fields_, unresolved_static_fields_, 97 "static fields resolved"); 98 DumpStat(resolved_local_static_fields_, resolved_static_fields_ + unresolved_static_fields_, 99 "static fields local to a class"); 100 DumpStat(safe_casts_, not_safe_casts_, "check-casts removed based on type information"); 101 // Note, the code below subtracts the stat value so that when added to the stat value we have 102 // 100% of samples. TODO: clean this up. 103 DumpStat(type_based_devirtualization_, 104 resolved_methods_[kVirtual] + unresolved_methods_[kVirtual] + 105 resolved_methods_[kInterface] + unresolved_methods_[kInterface] - 106 type_based_devirtualization_, 107 "virtual/interface calls made direct based on type information"); 108 109 for (size_t i = 0; i <= kMaxInvokeType; i++) { 110 std::ostringstream oss; 111 oss << static_cast<InvokeType>(i) << " methods were AOT resolved"; 112 DumpStat(resolved_methods_[i], unresolved_methods_[i], oss.str().c_str()); 113 if (virtual_made_direct_[i] > 0) { 114 std::ostringstream oss2; 115 oss2 << static_cast<InvokeType>(i) << " methods made direct"; 116 DumpStat(virtual_made_direct_[i], 117 resolved_methods_[i] + unresolved_methods_[i] - virtual_made_direct_[i], 118 oss2.str().c_str()); 119 } 120 if (direct_calls_to_boot_[i] > 0) { 121 std::ostringstream oss2; 122 oss2 << static_cast<InvokeType>(i) << " method calls are direct into boot"; 123 DumpStat(direct_calls_to_boot_[i], 124 resolved_methods_[i] + unresolved_methods_[i] - direct_calls_to_boot_[i], 125 oss2.str().c_str()); 126 } 127 if (direct_methods_to_boot_[i] > 0) { 128 std::ostringstream oss2; 129 oss2 << static_cast<InvokeType>(i) << " method calls have methods in boot"; 130 DumpStat(direct_methods_to_boot_[i], 131 resolved_methods_[i] + unresolved_methods_[i] - direct_methods_to_boot_[i], 132 oss2.str().c_str()); 133 } 134 } 135 } 136 137// Allow lossy statistics in non-debug builds. 138#ifndef NDEBUG 139#define STATS_LOCK() MutexLock mu(Thread::Current(), stats_lock_) 140#else 141#define STATS_LOCK() 142#endif 143 144 void TypeInDexCache() { 145 STATS_LOCK(); 146 types_in_dex_cache_++; 147 } 148 149 void TypeNotInDexCache() { 150 STATS_LOCK(); 151 types_not_in_dex_cache_++; 152 } 153 154 void StringInDexCache() { 155 STATS_LOCK(); 156 strings_in_dex_cache_++; 157 } 158 159 void StringNotInDexCache() { 160 STATS_LOCK(); 161 strings_not_in_dex_cache_++; 162 } 163 164 void TypeDoesntNeedAccessCheck() { 165 STATS_LOCK(); 166 resolved_types_++; 167 } 168 169 void TypeNeedsAccessCheck() { 170 STATS_LOCK(); 171 unresolved_types_++; 172 } 173 174 void ResolvedInstanceField() { 175 STATS_LOCK(); 176 resolved_instance_fields_++; 177 } 178 179 void UnresolvedInstanceField() { 180 STATS_LOCK(); 181 unresolved_instance_fields_++; 182 } 183 184 void ResolvedLocalStaticField() { 185 STATS_LOCK(); 186 resolved_local_static_fields_++; 187 } 188 189 void ResolvedStaticField() { 190 STATS_LOCK(); 191 resolved_static_fields_++; 192 } 193 194 void UnresolvedStaticField() { 195 STATS_LOCK(); 196 unresolved_static_fields_++; 197 } 198 199 // Indicate that type information from the verifier led to devirtualization. 200 void PreciseTypeDevirtualization() { 201 STATS_LOCK(); 202 type_based_devirtualization_++; 203 } 204 205 // Indicate that a method of the given type was resolved at compile time. 206 void ResolvedMethod(InvokeType type) { 207 DCHECK_LE(type, kMaxInvokeType); 208 STATS_LOCK(); 209 resolved_methods_[type]++; 210 } 211 212 // Indicate that a method of the given type was unresolved at compile time as it was in an 213 // unknown dex file. 214 void UnresolvedMethod(InvokeType type) { 215 DCHECK_LE(type, kMaxInvokeType); 216 STATS_LOCK(); 217 unresolved_methods_[type]++; 218 } 219 220 // Indicate that a type of virtual method dispatch has been converted into a direct method 221 // dispatch. 222 void VirtualMadeDirect(InvokeType type) { 223 DCHECK(type == kVirtual || type == kInterface || type == kSuper); 224 STATS_LOCK(); 225 virtual_made_direct_[type]++; 226 } 227 228 // Indicate that a method of the given type was able to call directly into boot. 229 void DirectCallsToBoot(InvokeType type) { 230 DCHECK_LE(type, kMaxInvokeType); 231 STATS_LOCK(); 232 direct_calls_to_boot_[type]++; 233 } 234 235 // Indicate that a method of the given type was able to be resolved directly from boot. 236 void DirectMethodsToBoot(InvokeType type) { 237 DCHECK_LE(type, kMaxInvokeType); 238 STATS_LOCK(); 239 direct_methods_to_boot_[type]++; 240 } 241 242 // A check-cast could be eliminated due to verifier type analysis. 243 void SafeCast() { 244 STATS_LOCK(); 245 safe_casts_++; 246 } 247 248 // A check-cast couldn't be eliminated due to verifier type analysis. 249 void NotASafeCast() { 250 STATS_LOCK(); 251 not_safe_casts_++; 252 } 253 254 private: 255 Mutex stats_lock_; 256 257 size_t types_in_dex_cache_; 258 size_t types_not_in_dex_cache_; 259 260 size_t strings_in_dex_cache_; 261 size_t strings_not_in_dex_cache_; 262 263 size_t resolved_types_; 264 size_t unresolved_types_; 265 266 size_t resolved_instance_fields_; 267 size_t unresolved_instance_fields_; 268 269 size_t resolved_local_static_fields_; 270 size_t resolved_static_fields_; 271 size_t unresolved_static_fields_; 272 // Type based devirtualization for invoke interface and virtual. 273 size_t type_based_devirtualization_; 274 275 size_t resolved_methods_[kMaxInvokeType + 1]; 276 size_t unresolved_methods_[kMaxInvokeType + 1]; 277 size_t virtual_made_direct_[kMaxInvokeType + 1]; 278 size_t direct_calls_to_boot_[kMaxInvokeType + 1]; 279 size_t direct_methods_to_boot_[kMaxInvokeType + 1]; 280 281 size_t safe_casts_; 282 size_t not_safe_casts_; 283 284 DISALLOW_COPY_AND_ASSIGN(AOTCompilationStats); 285}; 286 287extern "C" void ArtInitCompilerContext(art::CompilerDriver& driver); 288extern "C" void ArtInitQuickCompilerContext(art::CompilerDriver& driver); 289 290extern "C" void ArtUnInitCompilerContext(art::CompilerDriver& driver); 291extern "C" void ArtUnInitQuickCompilerContext(art::CompilerDriver& driver); 292 293extern "C" art::CompiledMethod* ArtCompileMethod(art::CompilerDriver& driver, 294 const art::DexFile::CodeItem* code_item, 295 uint32_t access_flags, 296 art::InvokeType invoke_type, 297 uint16_t class_def_idx, 298 uint32_t method_idx, 299 jobject class_loader, 300 const art::DexFile& dex_file); 301extern "C" art::CompiledMethod* ArtQuickCompileMethod(art::CompilerDriver& compiler, 302 const art::DexFile::CodeItem* code_item, 303 uint32_t access_flags, 304 art::InvokeType invoke_type, 305 uint16_t class_def_idx, 306 uint32_t method_idx, 307 jobject class_loader, 308 const art::DexFile& dex_file); 309 310extern "C" art::CompiledMethod* ArtCompileDEX(art::CompilerDriver& compiler, 311 const art::DexFile::CodeItem* code_item, 312 uint32_t access_flags, 313 art::InvokeType invoke_type, 314 uint16_t class_def_idx, 315 uint32_t method_idx, 316 jobject class_loader, 317 const art::DexFile& dex_file); 318#ifdef ART_SEA_IR_MODE 319extern "C" art::CompiledMethod* SeaIrCompileMethod(art::CompilerDriver& compiler, 320 const art::DexFile::CodeItem* code_item, 321 uint32_t access_flags, 322 art::InvokeType invoke_type, 323 uint16_t class_def_idx, 324 uint32_t method_idx, 325 jobject class_loader, 326 const art::DexFile& dex_file); 327#endif 328extern "C" art::CompiledMethod* ArtLLVMJniCompileMethod(art::CompilerDriver& driver, 329 uint32_t access_flags, uint32_t method_idx, 330 const art::DexFile& dex_file); 331 332extern "C" art::CompiledMethod* ArtQuickJniCompileMethod(art::CompilerDriver& compiler, 333 uint32_t access_flags, uint32_t method_idx, 334 const art::DexFile& dex_file); 335 336extern "C" void compilerLLVMSetBitcodeFileName(art::CompilerDriver& driver, 337 std::string const& filename); 338 339CompilerDriver::CompilerDriver(VerificationResults* verification_results, 340 DexFileToMethodInlinerMap* method_inliner_map, 341 CompilerBackend compiler_backend, InstructionSet instruction_set, 342 InstructionSetFeatures instruction_set_features, 343 bool image, DescriptorSet* image_classes, size_t thread_count, 344 bool dump_stats) 345 : verification_results_(verification_results), 346 method_inliner_map_(method_inliner_map), 347 compiler_backend_(compiler_backend), 348 instruction_set_(instruction_set), 349 instruction_set_features_(instruction_set_features), 350 freezing_constructor_lock_("freezing constructor lock"), 351 compiled_classes_lock_("compiled classes lock"), 352 compiled_methods_lock_("compiled method lock"), 353 image_(image), 354 image_classes_(image_classes), 355 thread_count_(thread_count), 356 start_ns_(0), 357 stats_(new AOTCompilationStats), 358 dump_stats_(dump_stats), 359 compiler_library_(NULL), 360 compiler_(NULL), 361 compiler_context_(NULL), 362 jni_compiler_(NULL), 363 compiler_enable_auto_elf_loading_(NULL), 364 compiler_get_method_code_addr_(NULL), 365 support_boot_image_fixup_(instruction_set == kThumb2), 366 dedupe_code_("dedupe code"), 367 dedupe_mapping_table_("dedupe mapping table"), 368 dedupe_vmap_table_("dedupe vmap table"), 369 dedupe_gc_map_("dedupe gc map") { 370 371 CHECK_PTHREAD_CALL(pthread_key_create, (&tls_key_, NULL), "compiler tls key"); 372 373 // TODO: more work needed to combine initializations and allow per-method backend selection 374 typedef void (*InitCompilerContextFn)(CompilerDriver&); 375 InitCompilerContextFn init_compiler_context; 376 if (compiler_backend_ == kPortable) { 377 // Initialize compiler_context_ 378 init_compiler_context = reinterpret_cast<void (*)(CompilerDriver&)>(ArtInitCompilerContext); 379 compiler_ = reinterpret_cast<CompilerFn>(ArtCompileMethod); 380 } else { 381 init_compiler_context = reinterpret_cast<void (*)(CompilerDriver&)>(ArtInitQuickCompilerContext); 382 compiler_ = reinterpret_cast<CompilerFn>(ArtQuickCompileMethod); 383 } 384 385 dex_to_dex_compiler_ = reinterpret_cast<DexToDexCompilerFn>(ArtCompileDEX); 386 387#ifdef ART_SEA_IR_MODE 388 sea_ir_compiler_ = NULL; 389 if (Runtime::Current()->IsSeaIRMode()) { 390 sea_ir_compiler_ = reinterpret_cast<CompilerFn>(SeaIrCompileMethod); 391 } 392#endif 393 394 init_compiler_context(*this); 395 396 if (compiler_backend_ == kPortable) { 397 jni_compiler_ = reinterpret_cast<JniCompilerFn>(ArtLLVMJniCompileMethod); 398 } else { 399 jni_compiler_ = reinterpret_cast<JniCompilerFn>(ArtQuickJniCompileMethod); 400 } 401 402 CHECK(!Runtime::Current()->IsStarted()); 403 if (!image_) { 404 CHECK(image_classes_.get() == NULL); 405 } 406} 407 408std::vector<uint8_t>* CompilerDriver::DeduplicateCode(const std::vector<uint8_t>& code) { 409 return dedupe_code_.Add(Thread::Current(), code); 410} 411 412std::vector<uint8_t>* CompilerDriver::DeduplicateMappingTable(const std::vector<uint8_t>& code) { 413 return dedupe_mapping_table_.Add(Thread::Current(), code); 414} 415 416std::vector<uint8_t>* CompilerDriver::DeduplicateVMapTable(const std::vector<uint8_t>& code) { 417 return dedupe_vmap_table_.Add(Thread::Current(), code); 418} 419 420std::vector<uint8_t>* CompilerDriver::DeduplicateGCMap(const std::vector<uint8_t>& code) { 421 return dedupe_gc_map_.Add(Thread::Current(), code); 422} 423 424CompilerDriver::~CompilerDriver() { 425 Thread* self = Thread::Current(); 426 { 427 MutexLock mu(self, compiled_classes_lock_); 428 STLDeleteValues(&compiled_classes_); 429 } 430 { 431 MutexLock mu(self, compiled_methods_lock_); 432 STLDeleteValues(&compiled_methods_); 433 } 434 { 435 MutexLock mu(self, compiled_methods_lock_); 436 STLDeleteElements(&code_to_patch_); 437 } 438 { 439 MutexLock mu(self, compiled_methods_lock_); 440 STLDeleteElements(&methods_to_patch_); 441 } 442 { 443 MutexLock mu(self, compiled_methods_lock_); 444 STLDeleteElements(&classes_to_patch_); 445 } 446 CHECK_PTHREAD_CALL(pthread_key_delete, (tls_key_), "delete tls key"); 447 typedef void (*UninitCompilerContextFn)(CompilerDriver&); 448 UninitCompilerContextFn uninit_compiler_context; 449 // Uninitialize compiler_context_ 450 // TODO: rework to combine initialization/uninitialization 451 if (compiler_backend_ == kPortable) { 452 uninit_compiler_context = reinterpret_cast<void (*)(CompilerDriver&)>(ArtUnInitCompilerContext); 453 } else { 454 uninit_compiler_context = reinterpret_cast<void (*)(CompilerDriver&)>(ArtUnInitQuickCompilerContext); 455 } 456 uninit_compiler_context(*this); 457} 458 459CompilerTls* CompilerDriver::GetTls() { 460 // Lazily create thread-local storage 461 CompilerTls* res = static_cast<CompilerTls*>(pthread_getspecific(tls_key_)); 462 if (res == NULL) { 463 res = new CompilerTls(); 464 CHECK_PTHREAD_CALL(pthread_setspecific, (tls_key_, res), "compiler tls"); 465 } 466 return res; 467} 468 469const std::vector<uint8_t>* CompilerDriver::CreateInterpreterToInterpreterBridge() const { 470 return CreateTrampoline(instruction_set_, kInterpreterAbi, 471 INTERPRETER_ENTRYPOINT_OFFSET(pInterpreterToInterpreterBridge)); 472} 473 474const std::vector<uint8_t>* CompilerDriver::CreateInterpreterToCompiledCodeBridge() const { 475 return CreateTrampoline(instruction_set_, kInterpreterAbi, 476 INTERPRETER_ENTRYPOINT_OFFSET(pInterpreterToCompiledCodeBridge)); 477} 478 479const std::vector<uint8_t>* CompilerDriver::CreateJniDlsymLookup() const { 480 return CreateTrampoline(instruction_set_, kJniAbi, JNI_ENTRYPOINT_OFFSET(pDlsymLookup)); 481} 482 483const std::vector<uint8_t>* CompilerDriver::CreatePortableImtConflictTrampoline() const { 484 return CreateTrampoline(instruction_set_, kPortableAbi, 485 PORTABLE_ENTRYPOINT_OFFSET(pPortableImtConflictTrampoline)); 486} 487 488const std::vector<uint8_t>* CompilerDriver::CreatePortableResolutionTrampoline() const { 489 return CreateTrampoline(instruction_set_, kPortableAbi, 490 PORTABLE_ENTRYPOINT_OFFSET(pPortableResolutionTrampoline)); 491} 492 493const std::vector<uint8_t>* CompilerDriver::CreatePortableToInterpreterBridge() const { 494 return CreateTrampoline(instruction_set_, kPortableAbi, 495 PORTABLE_ENTRYPOINT_OFFSET(pPortableToInterpreterBridge)); 496} 497 498const std::vector<uint8_t>* CompilerDriver::CreateQuickImtConflictTrampoline() const { 499 return CreateTrampoline(instruction_set_, kQuickAbi, 500 QUICK_ENTRYPOINT_OFFSET(pQuickImtConflictTrampoline)); 501} 502 503const std::vector<uint8_t>* CompilerDriver::CreateQuickResolutionTrampoline() const { 504 return CreateTrampoline(instruction_set_, kQuickAbi, 505 QUICK_ENTRYPOINT_OFFSET(pQuickResolutionTrampoline)); 506} 507 508const std::vector<uint8_t>* CompilerDriver::CreateQuickToInterpreterBridge() const { 509 return CreateTrampoline(instruction_set_, kQuickAbi, 510 QUICK_ENTRYPOINT_OFFSET(pQuickToInterpreterBridge)); 511} 512 513void CompilerDriver::CompileAll(jobject class_loader, 514 const std::vector<const DexFile*>& dex_files, 515 TimingLogger& timings) { 516 DCHECK(!Runtime::Current()->IsStarted()); 517 UniquePtr<ThreadPool> thread_pool(new ThreadPool("Compiler driver thread pool", thread_count_ - 1)); 518 PreCompile(class_loader, dex_files, *thread_pool.get(), timings); 519 Compile(class_loader, dex_files, *thread_pool.get(), timings); 520 if (dump_stats_) { 521 stats_->Dump(); 522 } 523} 524 525static DexToDexCompilationLevel GetDexToDexCompilationlevel( 526 SirtRef<mirror::ClassLoader>& class_loader, const DexFile& dex_file, 527 const DexFile::ClassDef& class_def) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 528 const char* descriptor = dex_file.GetClassDescriptor(class_def); 529 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 530 mirror::Class* klass = class_linker->FindClass(descriptor, class_loader); 531 if (klass == NULL) { 532 Thread* self = Thread::Current(); 533 CHECK(self->IsExceptionPending()); 534 self->ClearException(); 535 return kDontDexToDexCompile; 536 } 537 // The verifier can only run on "quick" instructions at runtime (see usage of 538 // FindAccessedFieldAtDexPc and FindInvokedMethodAtDexPc in ThrowNullPointerExceptionFromDexPC 539 // function). Since image classes can be verified again while compiling an application, 540 // we must prevent the DEX-to-DEX compiler from introducing them. 541 // TODO: find a way to enable "quick" instructions for image classes and remove this check. 542 bool compiling_image_classes = class_loader.get() == nullptr; 543 if (compiling_image_classes) { 544 return kRequired; 545 } else if (klass->IsVerified()) { 546 // Class is verified so we can enable DEX-to-DEX compilation for performance. 547 return kOptimize; 548 } else if (klass->IsCompileTimeVerified()) { 549 // Class verification has soft-failed. Anyway, ensure at least correctness. 550 DCHECK_EQ(klass->GetStatus(), mirror::Class::kStatusRetryVerificationAtRuntime); 551 return kRequired; 552 } else { 553 // Class verification has failed: do not run DEX-to-DEX compilation. 554 return kDontDexToDexCompile; 555 } 556} 557 558void CompilerDriver::CompileOne(const mirror::ArtMethod* method, TimingLogger& timings) { 559 DCHECK(!Runtime::Current()->IsStarted()); 560 Thread* self = Thread::Current(); 561 jobject jclass_loader; 562 const DexFile* dex_file; 563 uint16_t class_def_idx; 564 { 565 ScopedObjectAccessUnchecked soa(self); 566 ScopedLocalRef<jobject> 567 local_class_loader(soa.Env(), 568 soa.AddLocalReference<jobject>(method->GetDeclaringClass()->GetClassLoader())); 569 jclass_loader = soa.Env()->NewGlobalRef(local_class_loader.get()); 570 // Find the dex_file 571 MethodHelper mh(method); 572 dex_file = &mh.GetDexFile(); 573 class_def_idx = mh.GetClassDefIndex(); 574 } 575 self->TransitionFromRunnableToSuspended(kNative); 576 577 std::vector<const DexFile*> dex_files; 578 dex_files.push_back(dex_file); 579 580 UniquePtr<ThreadPool> thread_pool(new ThreadPool("Compiler driver thread pool", 0U)); 581 PreCompile(jclass_loader, dex_files, *thread_pool.get(), timings); 582 583 uint32_t method_idx = method->GetDexMethodIndex(); 584 const DexFile::CodeItem* code_item = dex_file->GetCodeItem(method->GetCodeItemOffset()); 585 // Can we run DEX-to-DEX compiler on this class ? 586 DexToDexCompilationLevel dex_to_dex_compilation_level = kDontDexToDexCompile; 587 { 588 ScopedObjectAccess soa(Thread::Current()); 589 const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_idx); 590 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), 591 soa.Decode<mirror::ClassLoader*>(jclass_loader)); 592 dex_to_dex_compilation_level = GetDexToDexCompilationlevel(class_loader, *dex_file, class_def); 593 } 594 CompileMethod(code_item, method->GetAccessFlags(), method->GetInvokeType(), 595 class_def_idx, method_idx, jclass_loader, *dex_file, dex_to_dex_compilation_level); 596 597 self->GetJniEnv()->DeleteGlobalRef(jclass_loader); 598 599 self->TransitionFromSuspendedToRunnable(); 600} 601 602void CompilerDriver::Resolve(jobject class_loader, const std::vector<const DexFile*>& dex_files, 603 ThreadPool& thread_pool, TimingLogger& timings) { 604 for (size_t i = 0; i != dex_files.size(); ++i) { 605 const DexFile* dex_file = dex_files[i]; 606 CHECK(dex_file != NULL); 607 ResolveDexFile(class_loader, *dex_file, thread_pool, timings); 608 } 609} 610 611void CompilerDriver::PreCompile(jobject class_loader, const std::vector<const DexFile*>& dex_files, 612 ThreadPool& thread_pool, TimingLogger& timings) { 613 LoadImageClasses(timings); 614 615 Resolve(class_loader, dex_files, thread_pool, timings); 616 617 Verify(class_loader, dex_files, thread_pool, timings); 618 619 InitializeClasses(class_loader, dex_files, thread_pool, timings); 620 621 UpdateImageClasses(timings); 622} 623 624bool CompilerDriver::IsImageClass(const char* descriptor) const { 625 if (!IsImage()) { 626 return true; 627 } else { 628 return image_classes_->find(descriptor) != image_classes_->end(); 629 } 630} 631 632static void ResolveExceptionsForMethod(MethodHelper* mh, 633 std::set<std::pair<uint16_t, const DexFile*> >& exceptions_to_resolve) 634 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 635 const DexFile::CodeItem* code_item = mh->GetCodeItem(); 636 if (code_item == NULL) { 637 return; // native or abstract method 638 } 639 if (code_item->tries_size_ == 0) { 640 return; // nothing to process 641 } 642 const byte* encoded_catch_handler_list = DexFile::GetCatchHandlerData(*code_item, 0); 643 size_t num_encoded_catch_handlers = DecodeUnsignedLeb128(&encoded_catch_handler_list); 644 for (size_t i = 0; i < num_encoded_catch_handlers; i++) { 645 int32_t encoded_catch_handler_size = DecodeSignedLeb128(&encoded_catch_handler_list); 646 bool has_catch_all = false; 647 if (encoded_catch_handler_size <= 0) { 648 encoded_catch_handler_size = -encoded_catch_handler_size; 649 has_catch_all = true; 650 } 651 for (int32_t j = 0; j < encoded_catch_handler_size; j++) { 652 uint16_t encoded_catch_handler_handlers_type_idx = 653 DecodeUnsignedLeb128(&encoded_catch_handler_list); 654 // Add to set of types to resolve if not already in the dex cache resolved types 655 if (!mh->IsResolvedTypeIdx(encoded_catch_handler_handlers_type_idx)) { 656 exceptions_to_resolve.insert( 657 std::pair<uint16_t, const DexFile*>(encoded_catch_handler_handlers_type_idx, 658 &mh->GetDexFile())); 659 } 660 // ignore address associated with catch handler 661 DecodeUnsignedLeb128(&encoded_catch_handler_list); 662 } 663 if (has_catch_all) { 664 // ignore catch all address 665 DecodeUnsignedLeb128(&encoded_catch_handler_list); 666 } 667 } 668} 669 670static bool ResolveCatchBlockExceptionsClassVisitor(mirror::Class* c, void* arg) 671 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 672 std::set<std::pair<uint16_t, const DexFile*> >* exceptions_to_resolve = 673 reinterpret_cast<std::set<std::pair<uint16_t, const DexFile*> >*>(arg); 674 MethodHelper mh; 675 for (size_t i = 0; i < c->NumVirtualMethods(); ++i) { 676 mirror::ArtMethod* m = c->GetVirtualMethod(i); 677 mh.ChangeMethod(m); 678 ResolveExceptionsForMethod(&mh, *exceptions_to_resolve); 679 } 680 for (size_t i = 0; i < c->NumDirectMethods(); ++i) { 681 mirror::ArtMethod* m = c->GetDirectMethod(i); 682 mh.ChangeMethod(m); 683 ResolveExceptionsForMethod(&mh, *exceptions_to_resolve); 684 } 685 return true; 686} 687 688static bool RecordImageClassesVisitor(mirror::Class* klass, void* arg) 689 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 690 CompilerDriver::DescriptorSet* image_classes = 691 reinterpret_cast<CompilerDriver::DescriptorSet*>(arg); 692 image_classes->insert(ClassHelper(klass).GetDescriptor()); 693 return true; 694} 695 696// Make a list of descriptors for classes to include in the image 697void CompilerDriver::LoadImageClasses(TimingLogger& timings) 698 LOCKS_EXCLUDED(Locks::mutator_lock_) { 699 if (!IsImage()) { 700 return; 701 } 702 703 timings.NewSplit("LoadImageClasses"); 704 // Make a first class to load all classes explicitly listed in the file 705 Thread* self = Thread::Current(); 706 ScopedObjectAccess soa(self); 707 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 708 for (auto it = image_classes_->begin(), end = image_classes_->end(); it != end;) { 709 const std::string& descriptor(*it); 710 SirtRef<mirror::Class> klass(self, class_linker->FindSystemClass(descriptor.c_str())); 711 if (klass.get() == NULL) { 712 VLOG(compiler) << "Failed to find class " << descriptor; 713 image_classes_->erase(it++); 714 self->ClearException(); 715 } else { 716 ++it; 717 } 718 } 719 720 // Resolve exception classes referenced by the loaded classes. The catch logic assumes 721 // exceptions are resolved by the verifier when there is a catch block in an interested method. 722 // Do this here so that exception classes appear to have been specified image classes. 723 std::set<std::pair<uint16_t, const DexFile*> > unresolved_exception_types; 724 SirtRef<mirror::Class> java_lang_Throwable(self, 725 class_linker->FindSystemClass("Ljava/lang/Throwable;")); 726 do { 727 unresolved_exception_types.clear(); 728 class_linker->VisitClasses(ResolveCatchBlockExceptionsClassVisitor, 729 &unresolved_exception_types); 730 for (const std::pair<uint16_t, const DexFile*>& exception_type : unresolved_exception_types) { 731 uint16_t exception_type_idx = exception_type.first; 732 const DexFile* dex_file = exception_type.second; 733 SirtRef<mirror::DexCache> dex_cache(self, class_linker->FindDexCache(*dex_file)); 734 SirtRef<mirror::ClassLoader> class_loader(self, nullptr); 735 SirtRef<mirror::Class> klass(self, class_linker->ResolveType(*dex_file, exception_type_idx, 736 dex_cache, class_loader)); 737 if (klass.get() == NULL) { 738 const DexFile::TypeId& type_id = dex_file->GetTypeId(exception_type_idx); 739 const char* descriptor = dex_file->GetTypeDescriptor(type_id); 740 LOG(FATAL) << "Failed to resolve class " << descriptor; 741 } 742 DCHECK(java_lang_Throwable->IsAssignableFrom(klass.get())); 743 } 744 // Resolving exceptions may load classes that reference more exceptions, iterate until no 745 // more are found 746 } while (!unresolved_exception_types.empty()); 747 748 // We walk the roots looking for classes so that we'll pick up the 749 // above classes plus any classes them depend on such super 750 // classes, interfaces, and the required ClassLinker roots. 751 class_linker->VisitClasses(RecordImageClassesVisitor, image_classes_.get()); 752 753 CHECK_NE(image_classes_->size(), 0U); 754} 755 756static void MaybeAddToImageClasses(mirror::Class* klass, CompilerDriver::DescriptorSet* image_classes) 757 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 758 while (!klass->IsObjectClass()) { 759 ClassHelper kh(klass); 760 const char* descriptor = kh.GetDescriptor(); 761 std::pair<CompilerDriver::DescriptorSet::iterator, bool> result = 762 image_classes->insert(descriptor); 763 if (result.second) { 764 VLOG(compiler) << "Adding " << descriptor << " to image classes"; 765 } else { 766 return; 767 } 768 for (size_t i = 0; i < kh.NumDirectInterfaces(); ++i) { 769 MaybeAddToImageClasses(kh.GetDirectInterface(i), image_classes); 770 } 771 if (klass->IsArrayClass()) { 772 MaybeAddToImageClasses(klass->GetComponentType(), image_classes); 773 } 774 klass = klass->GetSuperClass(); 775 } 776} 777 778void CompilerDriver::FindClinitImageClassesCallback(mirror::Object* object, void* arg) { 779 DCHECK(object != NULL); 780 DCHECK(arg != NULL); 781 CompilerDriver* compiler_driver = reinterpret_cast<CompilerDriver*>(arg); 782 MaybeAddToImageClasses(object->GetClass(), compiler_driver->image_classes_.get()); 783} 784 785void CompilerDriver::UpdateImageClasses(TimingLogger& timings) { 786 if (IsImage()) { 787 timings.NewSplit("UpdateImageClasses"); 788 789 // Update image_classes_ with classes for objects created by <clinit> methods. 790 Thread* self = Thread::Current(); 791 const char* old_cause = self->StartAssertNoThreadSuspension("ImageWriter"); 792 gc::Heap* heap = Runtime::Current()->GetHeap(); 793 // TODO: Image spaces only? 794 ScopedObjectAccess soa(Thread::Current()); 795 WriterMutexLock mu(self, *Locks::heap_bitmap_lock_); 796 heap->VisitObjects(FindClinitImageClassesCallback, this); 797 self->EndAssertNoThreadSuspension(old_cause); 798 } 799} 800 801bool CompilerDriver::CanAssumeTypeIsPresentInDexCache(const DexFile& dex_file, uint32_t type_idx) { 802 if (IsImage() && 803 IsImageClass(dex_file.StringDataByIdx(dex_file.GetTypeId(type_idx).descriptor_idx_))) { 804 if (kIsDebugBuild) { 805 ScopedObjectAccess soa(Thread::Current()); 806 mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); 807 mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); 808 CHECK(resolved_class != NULL); 809 } 810 stats_->TypeInDexCache(); 811 return true; 812 } else { 813 stats_->TypeNotInDexCache(); 814 return false; 815 } 816} 817 818bool CompilerDriver::CanAssumeStringIsPresentInDexCache(const DexFile& dex_file, 819 uint32_t string_idx) { 820 // See also Compiler::ResolveDexFile 821 822 bool result = false; 823 if (IsImage()) { 824 // We resolve all const-string strings when building for the image. 825 ScopedObjectAccess soa(Thread::Current()); 826 SirtRef<mirror::DexCache> dex_cache(soa.Self(), Runtime::Current()->GetClassLinker()->FindDexCache(dex_file)); 827 Runtime::Current()->GetClassLinker()->ResolveString(dex_file, string_idx, dex_cache); 828 result = true; 829 } 830 if (result) { 831 stats_->StringInDexCache(); 832 } else { 833 stats_->StringNotInDexCache(); 834 } 835 return result; 836} 837 838bool CompilerDriver::CanAccessTypeWithoutChecks(uint32_t referrer_idx, const DexFile& dex_file, 839 uint32_t type_idx, 840 bool* type_known_final, bool* type_known_abstract, 841 bool* equals_referrers_class) { 842 if (type_known_final != NULL) { 843 *type_known_final = false; 844 } 845 if (type_known_abstract != NULL) { 846 *type_known_abstract = false; 847 } 848 if (equals_referrers_class != NULL) { 849 *equals_referrers_class = false; 850 } 851 ScopedObjectAccess soa(Thread::Current()); 852 mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); 853 // Get type from dex cache assuming it was populated by the verifier 854 mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); 855 if (resolved_class == NULL) { 856 stats_->TypeNeedsAccessCheck(); 857 return false; // Unknown class needs access checks. 858 } 859 const DexFile::MethodId& method_id = dex_file.GetMethodId(referrer_idx); 860 if (equals_referrers_class != NULL) { 861 *equals_referrers_class = (method_id.class_idx_ == type_idx); 862 } 863 mirror::Class* referrer_class = dex_cache->GetResolvedType(method_id.class_idx_); 864 if (referrer_class == NULL) { 865 stats_->TypeNeedsAccessCheck(); 866 return false; // Incomplete referrer knowledge needs access check. 867 } 868 // Perform access check, will return true if access is ok or false if we're going to have to 869 // check this at runtime (for example for class loaders). 870 bool result = referrer_class->CanAccess(resolved_class); 871 if (result) { 872 stats_->TypeDoesntNeedAccessCheck(); 873 if (type_known_final != NULL) { 874 *type_known_final = resolved_class->IsFinal() && !resolved_class->IsArrayClass(); 875 } 876 if (type_known_abstract != NULL) { 877 *type_known_abstract = resolved_class->IsAbstract() && !resolved_class->IsArrayClass(); 878 } 879 } else { 880 stats_->TypeNeedsAccessCheck(); 881 } 882 return result; 883} 884 885bool CompilerDriver::CanAccessInstantiableTypeWithoutChecks(uint32_t referrer_idx, 886 const DexFile& dex_file, 887 uint32_t type_idx) { 888 ScopedObjectAccess soa(Thread::Current()); 889 mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); 890 // Get type from dex cache assuming it was populated by the verifier. 891 mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); 892 if (resolved_class == NULL) { 893 stats_->TypeNeedsAccessCheck(); 894 return false; // Unknown class needs access checks. 895 } 896 const DexFile::MethodId& method_id = dex_file.GetMethodId(referrer_idx); 897 mirror::Class* referrer_class = dex_cache->GetResolvedType(method_id.class_idx_); 898 if (referrer_class == NULL) { 899 stats_->TypeNeedsAccessCheck(); 900 return false; // Incomplete referrer knowledge needs access check. 901 } 902 // Perform access and instantiable checks, will return true if access is ok or false if we're 903 // going to have to check this at runtime (for example for class loaders). 904 bool result = referrer_class->CanAccess(resolved_class) && resolved_class->IsInstantiable(); 905 if (result) { 906 stats_->TypeDoesntNeedAccessCheck(); 907 } else { 908 stats_->TypeNeedsAccessCheck(); 909 } 910 return result; 911} 912 913bool CompilerDriver::CanEmbedTypeInCode(const DexFile& dex_file, uint32_t type_idx, 914 bool* is_type_initialized, bool* use_direct_type_ptr, 915 uintptr_t* direct_type_ptr) { 916 ScopedObjectAccess soa(Thread::Current()); 917 mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); 918 mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); 919 if (resolved_class == nullptr) { 920 return false; 921 } 922 const bool compiling_boot = Runtime::Current()->GetHeap()->IsCompilingBoot(); 923 if (compiling_boot) { 924 // boot -> boot class pointers. 925 // True if the class is in the image at boot compiling time. 926 const bool is_image_class = IsImage() && IsImageClass( 927 dex_file.StringDataByIdx(dex_file.GetTypeId(type_idx).descriptor_idx_)); 928 // True if pc relative load works. 929 const bool support_boot_image_fixup = GetSupportBootImageFixup(); 930 if (is_image_class && support_boot_image_fixup) { 931 *is_type_initialized = resolved_class->IsInitialized(); 932 *use_direct_type_ptr = false; 933 *direct_type_ptr = 0; 934 return true; 935 } else { 936 return false; 937 } 938 } else { 939 // True if the class is in the image at app compiling time. 940 const bool class_in_image = 941 Runtime::Current()->GetHeap()->FindSpaceFromObject(resolved_class, false)->IsImageSpace(); 942 if (class_in_image) { 943 // boot -> app class pointers. 944 *is_type_initialized = resolved_class->IsInitialized(); 945 *use_direct_type_ptr = true; 946 *direct_type_ptr = reinterpret_cast<uintptr_t>(resolved_class); 947 return true; 948 } else { 949 // app -> app class pointers. 950 // Give up because app does not have an image and class 951 // isn't created at compile time. TODO: implement this 952 // if/when each app gets an image. 953 return false; 954 } 955 } 956} 957 958static mirror::Class* ComputeCompilingMethodsClass(ScopedObjectAccess& soa, 959 SirtRef<mirror::DexCache>& dex_cache, 960 const DexCompilationUnit* mUnit) 961 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 962 // The passed dex_cache is a hint, sanity check before asking the class linker that will take a 963 // lock. 964 if (dex_cache->GetDexFile() != mUnit->GetDexFile()) { 965 dex_cache.reset(mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile())); 966 } 967 SirtRef<mirror::ClassLoader> 968 class_loader(soa.Self(), soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader())); 969 const DexFile::MethodId& referrer_method_id = 970 mUnit->GetDexFile()->GetMethodId(mUnit->GetDexMethodIndex()); 971 return mUnit->GetClassLinker()->ResolveType(*mUnit->GetDexFile(), referrer_method_id.class_idx_, 972 dex_cache, class_loader); 973} 974 975static mirror::ArtField* ComputeFieldReferencedFromCompilingMethod( 976 ScopedObjectAccess& soa, const DexCompilationUnit* mUnit, uint32_t field_idx) 977 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 978 SirtRef<mirror::DexCache> dex_cache(soa.Self(), mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile())); 979 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader())); 980 return mUnit->GetClassLinker()->ResolveField(*mUnit->GetDexFile(), field_idx, dex_cache, 981 class_loader, false); 982} 983 984static mirror::ArtMethod* ComputeMethodReferencedFromCompilingMethod(ScopedObjectAccess& soa, 985 const DexCompilationUnit* mUnit, 986 uint32_t method_idx, 987 InvokeType type) 988 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 989 SirtRef<mirror::DexCache> dex_cache(soa.Self(), mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile())); 990 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader())); 991 return mUnit->GetClassLinker()->ResolveMethod(*mUnit->GetDexFile(), method_idx, dex_cache, 992 class_loader, NULL, type); 993} 994 995bool CompilerDriver::ComputeInstanceFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, 996 bool is_put, int* field_offset, bool* is_volatile) { 997 ScopedObjectAccess soa(Thread::Current()); 998 // Conservative defaults. 999 *field_offset = -1; 1000 *is_volatile = true; 1001 // Try to resolve field and ignore if an Incompatible Class Change Error (ie is static). 1002 mirror::ArtField* resolved_field = ComputeFieldReferencedFromCompilingMethod(soa, mUnit, field_idx); 1003 if (resolved_field != NULL && !resolved_field->IsStatic()) { 1004 SirtRef<mirror::DexCache> dex_cache(soa.Self(), 1005 resolved_field->GetDeclaringClass()->GetDexCache()); 1006 mirror::Class* referrer_class = 1007 ComputeCompilingMethodsClass(soa, dex_cache, mUnit); 1008 if (referrer_class != NULL) { 1009 mirror::Class* fields_class = resolved_field->GetDeclaringClass(); 1010 bool access_ok = 1011 referrer_class->CanAccessResolvedField<false>(fields_class, resolved_field, field_idx); 1012 bool is_write_to_final_from_wrong_class = is_put && resolved_field->IsFinal() && 1013 fields_class != referrer_class; 1014 if (access_ok && !is_write_to_final_from_wrong_class) { 1015 *field_offset = resolved_field->GetOffset().Int32Value(); 1016 *is_volatile = resolved_field->IsVolatile(); 1017 stats_->ResolvedInstanceField(); 1018 return true; // Fast path. 1019 } 1020 } 1021 } 1022 // Clean up any exception left by field/type resolution 1023 if (soa.Self()->IsExceptionPending()) { 1024 soa.Self()->ClearException(); 1025 } 1026 stats_->UnresolvedInstanceField(); 1027 return false; // Incomplete knowledge needs slow path. 1028} 1029 1030bool CompilerDriver::ComputeStaticFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, 1031 bool is_put, int* field_offset, int* storage_index, 1032 bool* is_referrers_class, bool* is_volatile, 1033 bool* is_initialized) { 1034 ScopedObjectAccess soa(Thread::Current()); 1035 // Conservative defaults. 1036 *field_offset = -1; 1037 *storage_index = -1; 1038 *is_referrers_class = false; 1039 *is_volatile = true; 1040 *is_initialized = false; 1041 // Try to resolve field and ignore if an Incompatible Class Change Error (ie isn't static). 1042 mirror::ArtField* resolved_field = ComputeFieldReferencedFromCompilingMethod(soa, mUnit, field_idx); 1043 if (resolved_field != NULL && resolved_field->IsStatic()) { 1044 SirtRef<mirror::DexCache> dex_cache(soa.Self(), resolved_field->GetDeclaringClass()->GetDexCache()); 1045 mirror::Class* referrer_class = 1046 ComputeCompilingMethodsClass(soa, dex_cache, mUnit); 1047 if (referrer_class != NULL) { 1048 mirror::Class* fields_class = resolved_field->GetDeclaringClass(); 1049 if (fields_class == referrer_class) { 1050 *is_referrers_class = true; // implies no worrying about class initialization 1051 *is_initialized = true; 1052 *field_offset = resolved_field->GetOffset().Int32Value(); 1053 *is_volatile = resolved_field->IsVolatile(); 1054 stats_->ResolvedLocalStaticField(); 1055 return true; // fast path 1056 } else { 1057 bool access_ok = 1058 referrer_class->CanAccessResolvedField<false>(fields_class, resolved_field, field_idx); 1059 bool is_write_to_final_from_wrong_class = is_put && resolved_field->IsFinal(); 1060 if (access_ok && !is_write_to_final_from_wrong_class) { 1061 // We have the resolved field, we must make it into a index for the referrer 1062 // in its static storage (which may fail if it doesn't have a slot for it) 1063 // TODO: for images we can elide the static storage base null check 1064 // if we know there's a non-null entry in the image 1065 mirror::DexCache* dex_cache = mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile()); 1066 if (fields_class->GetDexCache() == dex_cache) { 1067 // common case where the dex cache of both the referrer and the field are the same, 1068 // no need to search the dex file 1069 *storage_index = fields_class->GetDexTypeIndex(); 1070 *field_offset = resolved_field->GetOffset().Int32Value(); 1071 *is_volatile = resolved_field->IsVolatile(); 1072 *is_initialized = fields_class->IsInitialized() && 1073 CanAssumeTypeIsPresentInDexCache(*mUnit->GetDexFile(), *storage_index); 1074 stats_->ResolvedStaticField(); 1075 return true; 1076 } 1077 // Search dex file for localized ssb index, may fail if field's class is a parent 1078 // of the class mentioned in the dex file and there is no dex cache entry. 1079 const DexFile::StringId* string_id = 1080 mUnit->GetDexFile()->FindStringId(FieldHelper(resolved_field).GetDeclaringClassDescriptor()); 1081 if (string_id != NULL) { 1082 const DexFile::TypeId* type_id = 1083 mUnit->GetDexFile()->FindTypeId(mUnit->GetDexFile()->GetIndexForStringId(*string_id)); 1084 if (type_id != NULL) { 1085 // medium path, needs check of static storage base being initialized 1086 *storage_index = mUnit->GetDexFile()->GetIndexForTypeId(*type_id); 1087 *field_offset = resolved_field->GetOffset().Int32Value(); 1088 *is_volatile = resolved_field->IsVolatile(); 1089 *is_initialized = fields_class->IsInitialized() && 1090 CanAssumeTypeIsPresentInDexCache(*mUnit->GetDexFile(), *storage_index); 1091 stats_->ResolvedStaticField(); 1092 return true; 1093 } 1094 } 1095 } 1096 } 1097 } 1098 } 1099 // Clean up any exception left by field/type resolution 1100 if (soa.Self()->IsExceptionPending()) { 1101 soa.Self()->ClearException(); 1102 } 1103 stats_->UnresolvedStaticField(); 1104 return false; // Incomplete knowledge needs slow path. 1105} 1106 1107void CompilerDriver::GetCodeAndMethodForDirectCall(InvokeType* type, InvokeType sharp_type, 1108 bool no_guarantee_of_dex_cache_entry, 1109 mirror::Class* referrer_class, 1110 mirror::ArtMethod* method, 1111 bool update_stats, 1112 MethodReference* target_method, 1113 uintptr_t* direct_code, 1114 uintptr_t* direct_method) { 1115 // For direct and static methods compute possible direct_code and direct_method values, ie 1116 // an address for the Method* being invoked and an address of the code for that Method*. 1117 // For interface calls compute a value for direct_method that is the interface method being 1118 // invoked, so this can be passed to the out-of-line runtime support code. 1119 *direct_code = 0; 1120 *direct_method = 0; 1121 bool use_dex_cache = false; 1122 const bool compiling_boot = Runtime::Current()->GetHeap()->IsCompilingBoot(); 1123 if (compiler_backend_ == kPortable) { 1124 if (sharp_type != kStatic && sharp_type != kDirect) { 1125 return; 1126 } 1127 use_dex_cache = true; 1128 } else { 1129 if (sharp_type != kStatic && sharp_type != kDirect) { 1130 return; 1131 } 1132 // TODO: support patching on all architectures. 1133 use_dex_cache = compiling_boot && !support_boot_image_fixup_; 1134 } 1135 bool method_code_in_boot = (method->GetDeclaringClass()->GetClassLoader() == nullptr); 1136 if (!use_dex_cache) { 1137 if (!method_code_in_boot) { 1138 use_dex_cache = true; 1139 } else { 1140 bool has_clinit_trampoline = 1141 method->IsStatic() && !method->GetDeclaringClass()->IsInitialized(); 1142 if (has_clinit_trampoline && (method->GetDeclaringClass() != referrer_class)) { 1143 // Ensure we run the clinit trampoline unless we are invoking a static method in the same 1144 // class. 1145 use_dex_cache = true; 1146 } 1147 } 1148 } 1149 if (update_stats && method_code_in_boot) { 1150 stats_->DirectCallsToBoot(*type); 1151 stats_->DirectMethodsToBoot(*type); 1152 } 1153 if (!use_dex_cache && compiling_boot) { 1154 MethodHelper mh(method); 1155 if (!IsImageClass(mh.GetDeclaringClassDescriptor())) { 1156 // We can only branch directly to Methods that are resolved in the DexCache. 1157 // Otherwise we won't invoke the resolution trampoline. 1158 use_dex_cache = true; 1159 } 1160 } 1161 // The method is defined not within this dex file. We need a dex cache slot within the current 1162 // dex file or direct pointers. 1163 bool must_use_direct_pointers = false; 1164 if (target_method->dex_file == method->GetDeclaringClass()->GetDexCache()->GetDexFile()) { 1165 target_method->dex_method_index = method->GetDexMethodIndex(); 1166 } else { 1167 // TODO: support patching from one dex file to another in the boot image. 1168 use_dex_cache = use_dex_cache || compiling_boot; 1169 if (no_guarantee_of_dex_cache_entry) { 1170 // See if the method is also declared in this dex cache. 1171 uint32_t dex_method_idx = MethodHelper(method).FindDexMethodIndexInOtherDexFile( 1172 *referrer_class->GetDexCache()->GetDexFile()); 1173 if (dex_method_idx != DexFile::kDexNoIndex) { 1174 target_method->dex_method_index = dex_method_idx; 1175 } else { 1176 must_use_direct_pointers = true; 1177 } 1178 } 1179 } 1180 if (use_dex_cache) { 1181 if (must_use_direct_pointers) { 1182 // Fail. Test above showed the only safe dispatch was via the dex cache, however, the direct 1183 // pointers are required as the dex cache lacks an appropriate entry. 1184 VLOG(compiler) << "Dex cache devirtualization failed for: " << PrettyMethod(method); 1185 } else { 1186 *type = sharp_type; 1187 } 1188 } else { 1189 if (compiling_boot) { 1190 *type = sharp_type; 1191 *direct_method = -1; 1192 *direct_code = -1; 1193 } else { 1194 bool method_in_image = 1195 Runtime::Current()->GetHeap()->FindSpaceFromObject(method, false)->IsImageSpace(); 1196 if (method_in_image) { 1197 CHECK(!method->IsAbstract()); 1198 *type = sharp_type; 1199 *direct_method = reinterpret_cast<uintptr_t>(method); 1200 *direct_code = reinterpret_cast<uintptr_t>(method->GetEntryPointFromCompiledCode()); 1201 target_method->dex_file = method->GetDeclaringClass()->GetDexCache()->GetDexFile(); 1202 target_method->dex_method_index = method->GetDexMethodIndex(); 1203 } else if (!must_use_direct_pointers) { 1204 // Set the code and rely on the dex cache for the method. 1205 *type = sharp_type; 1206 *direct_code = reinterpret_cast<uintptr_t>(method->GetEntryPointFromCompiledCode()); 1207 } else { 1208 // Direct pointers were required but none were available. 1209 VLOG(compiler) << "Dex cache devirtualization failed for: " << PrettyMethod(method); 1210 } 1211 } 1212 } 1213} 1214 1215bool CompilerDriver::ComputeInvokeInfo(const DexCompilationUnit* mUnit, const uint32_t dex_pc, 1216 bool update_stats, bool enable_devirtualization, 1217 InvokeType* invoke_type, MethodReference* target_method, 1218 int* vtable_idx, uintptr_t* direct_code, 1219 uintptr_t* direct_method) { 1220 ScopedObjectAccess soa(Thread::Current()); 1221 *vtable_idx = -1; 1222 *direct_code = 0; 1223 *direct_method = 0; 1224 mirror::ArtMethod* resolved_method = 1225 ComputeMethodReferencedFromCompilingMethod(soa, mUnit, target_method->dex_method_index, 1226 *invoke_type); 1227 if (resolved_method != NULL) { 1228 if (*invoke_type == kVirtual || *invoke_type == kSuper) { 1229 *vtable_idx = resolved_method->GetMethodIndex(); 1230 } else if (*invoke_type == kInterface) { 1231 *vtable_idx = resolved_method->GetDexMethodIndex(); 1232 } 1233 // Don't try to fast-path if we don't understand the caller's class or this appears to be an 1234 // Incompatible Class Change Error. 1235 SirtRef<mirror::DexCache> dex_cache(soa.Self(), resolved_method->GetDeclaringClass()->GetDexCache()); 1236 mirror::Class* referrer_class = 1237 ComputeCompilingMethodsClass(soa, dex_cache, mUnit); 1238 bool icce = resolved_method->CheckIncompatibleClassChange(*invoke_type); 1239 if (referrer_class != NULL && !icce) { 1240 mirror::Class* methods_class = resolved_method->GetDeclaringClass(); 1241 if (referrer_class->CanAccessResolvedMethod<false>(methods_class, resolved_method, 1242 target_method->dex_method_index)) { 1243 const bool enableFinalBasedSharpening = enable_devirtualization; 1244 // Sharpen a virtual call into a direct call when the target is known not to have been 1245 // overridden (ie is final). 1246 bool can_sharpen_virtual_based_on_type = 1247 (*invoke_type == kVirtual) && (resolved_method->IsFinal() || methods_class->IsFinal()); 1248 // For invoke-super, ensure the vtable index will be correct to dispatch in the vtable of 1249 // the super class. 1250 bool can_sharpen_super_based_on_type = (*invoke_type == kSuper) && 1251 (referrer_class != methods_class) && referrer_class->IsSubClass(methods_class) && 1252 resolved_method->GetMethodIndex() < methods_class->GetVTable()->GetLength() && 1253 (methods_class->GetVTable()->Get(resolved_method->GetMethodIndex()) == resolved_method); 1254 1255 if (enableFinalBasedSharpening && (can_sharpen_virtual_based_on_type || 1256 can_sharpen_super_based_on_type)) { 1257 // Sharpen a virtual call into a direct call. The method_idx is into referrer's 1258 // dex cache, check that this resolved method is where we expect it. 1259 CHECK(referrer_class->GetDexCache()->GetResolvedMethod(target_method->dex_method_index) == 1260 resolved_method) << PrettyMethod(resolved_method); 1261 InvokeType orig_invoke_type = *invoke_type; 1262 GetCodeAndMethodForDirectCall(invoke_type, kDirect, false, referrer_class, resolved_method, 1263 update_stats, target_method, direct_code, direct_method); 1264 if (update_stats && (*invoke_type == kDirect)) { 1265 stats_->ResolvedMethod(orig_invoke_type); 1266 stats_->VirtualMadeDirect(orig_invoke_type); 1267 } 1268 DCHECK_NE(*invoke_type, kSuper) << PrettyMethod(resolved_method); 1269 return true; 1270 } 1271 const bool enableVerifierBasedSharpening = enable_devirtualization; 1272 if (enableVerifierBasedSharpening && (*invoke_type == kVirtual || 1273 *invoke_type == kInterface)) { 1274 // Did the verifier record a more precise invoke target based on its type information? 1275 const MethodReference caller_method(mUnit->GetDexFile(), mUnit->GetDexMethodIndex()); 1276 const MethodReference* devirt_map_target = 1277 verification_results_->GetDevirtMap(caller_method, dex_pc); 1278 if (devirt_map_target != NULL) { 1279 SirtRef<mirror::DexCache> target_dex_cache(soa.Self(), mUnit->GetClassLinker()->FindDexCache(*devirt_map_target->dex_file)); 1280 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader())); 1281 mirror::ArtMethod* called_method = 1282 mUnit->GetClassLinker()->ResolveMethod(*devirt_map_target->dex_file, 1283 devirt_map_target->dex_method_index, 1284 target_dex_cache, class_loader, NULL, 1285 kVirtual); 1286 CHECK(called_method != NULL); 1287 CHECK(!called_method->IsAbstract()); 1288 InvokeType orig_invoke_type = *invoke_type; 1289 GetCodeAndMethodForDirectCall(invoke_type, kDirect, true, referrer_class, called_method, 1290 update_stats, target_method, direct_code, direct_method); 1291 if (update_stats && (*invoke_type == kDirect)) { 1292 stats_->ResolvedMethod(orig_invoke_type); 1293 stats_->VirtualMadeDirect(orig_invoke_type); 1294 stats_->PreciseTypeDevirtualization(); 1295 } 1296 DCHECK_NE(*invoke_type, kSuper); 1297 return true; 1298 } 1299 } 1300 if (*invoke_type == kSuper) { 1301 // Unsharpened super calls are suspicious so go slow-path. 1302 } else { 1303 // Sharpening failed so generate a regular resolved method dispatch. 1304 if (update_stats) { 1305 stats_->ResolvedMethod(*invoke_type); 1306 } 1307 GetCodeAndMethodForDirectCall(invoke_type, *invoke_type, false, referrer_class, resolved_method, 1308 update_stats, target_method, direct_code, direct_method); 1309 return true; 1310 } 1311 } 1312 } 1313 } 1314 // Clean up any exception left by method/invoke_type resolution 1315 if (soa.Self()->IsExceptionPending()) { 1316 soa.Self()->ClearException(); 1317 } 1318 if (update_stats) { 1319 stats_->UnresolvedMethod(*invoke_type); 1320 } 1321 return false; // Incomplete knowledge needs slow path. 1322} 1323 1324bool CompilerDriver::IsSafeCast(const MethodReference& mr, uint32_t dex_pc) { 1325 bool result = verification_results_->IsSafeCast(mr, dex_pc); 1326 if (result) { 1327 stats_->SafeCast(); 1328 } else { 1329 stats_->NotASafeCast(); 1330 } 1331 return result; 1332} 1333 1334 1335void CompilerDriver::AddCodePatch(const DexFile* dex_file, 1336 uint16_t referrer_class_def_idx, 1337 uint32_t referrer_method_idx, 1338 InvokeType referrer_invoke_type, 1339 uint32_t target_method_idx, 1340 InvokeType target_invoke_type, 1341 size_t literal_offset) { 1342 MutexLock mu(Thread::Current(), compiled_methods_lock_); 1343 code_to_patch_.push_back(new CallPatchInformation(dex_file, 1344 referrer_class_def_idx, 1345 referrer_method_idx, 1346 referrer_invoke_type, 1347 target_method_idx, 1348 target_invoke_type, 1349 literal_offset)); 1350} 1351void CompilerDriver::AddMethodPatch(const DexFile* dex_file, 1352 uint16_t referrer_class_def_idx, 1353 uint32_t referrer_method_idx, 1354 InvokeType referrer_invoke_type, 1355 uint32_t target_method_idx, 1356 InvokeType target_invoke_type, 1357 size_t literal_offset) { 1358 MutexLock mu(Thread::Current(), compiled_methods_lock_); 1359 methods_to_patch_.push_back(new CallPatchInformation(dex_file, 1360 referrer_class_def_idx, 1361 referrer_method_idx, 1362 referrer_invoke_type, 1363 target_method_idx, 1364 target_invoke_type, 1365 literal_offset)); 1366} 1367void CompilerDriver::AddClassPatch(const DexFile* dex_file, 1368 uint16_t referrer_class_def_idx, 1369 uint32_t referrer_method_idx, 1370 uint32_t target_type_idx, 1371 size_t literal_offset) { 1372 MutexLock mu(Thread::Current(), compiled_methods_lock_); 1373 classes_to_patch_.push_back(new TypePatchInformation(dex_file, 1374 referrer_class_def_idx, 1375 referrer_method_idx, 1376 target_type_idx, 1377 literal_offset)); 1378} 1379 1380class ParallelCompilationManager { 1381 public: 1382 typedef void Callback(const ParallelCompilationManager* manager, size_t index); 1383 1384 ParallelCompilationManager(ClassLinker* class_linker, 1385 jobject class_loader, 1386 CompilerDriver* compiler, 1387 const DexFile* dex_file, 1388 ThreadPool& thread_pool) 1389 : index_(0), 1390 class_linker_(class_linker), 1391 class_loader_(class_loader), 1392 compiler_(compiler), 1393 dex_file_(dex_file), 1394 thread_pool_(&thread_pool) {} 1395 1396 ClassLinker* GetClassLinker() const { 1397 CHECK(class_linker_ != NULL); 1398 return class_linker_; 1399 } 1400 1401 jobject GetClassLoader() const { 1402 return class_loader_; 1403 } 1404 1405 CompilerDriver* GetCompiler() const { 1406 CHECK(compiler_ != NULL); 1407 return compiler_; 1408 } 1409 1410 const DexFile* GetDexFile() const { 1411 CHECK(dex_file_ != NULL); 1412 return dex_file_; 1413 } 1414 1415 void ForAll(size_t begin, size_t end, Callback callback, size_t work_units) { 1416 Thread* self = Thread::Current(); 1417 self->AssertNoPendingException(); 1418 CHECK_GT(work_units, 0U); 1419 1420 index_ = begin; 1421 for (size_t i = 0; i < work_units; ++i) { 1422 thread_pool_->AddTask(self, new ForAllClosure(this, end, callback)); 1423 } 1424 thread_pool_->StartWorkers(self); 1425 1426 // Ensure we're suspended while we're blocked waiting for the other threads to finish (worker 1427 // thread destructor's called below perform join). 1428 CHECK_NE(self->GetState(), kRunnable); 1429 1430 // Wait for all the worker threads to finish. 1431 thread_pool_->Wait(self, true, false); 1432 } 1433 1434 size_t NextIndex() { 1435 return index_.FetchAndAdd(1); 1436 } 1437 1438 private: 1439 class ForAllClosure : public Task { 1440 public: 1441 ForAllClosure(ParallelCompilationManager* manager, size_t end, Callback* callback) 1442 : manager_(manager), 1443 end_(end), 1444 callback_(callback) {} 1445 1446 virtual void Run(Thread* self) { 1447 while (true) { 1448 const size_t index = manager_->NextIndex(); 1449 if (UNLIKELY(index >= end_)) { 1450 break; 1451 } 1452 callback_(manager_, index); 1453 self->AssertNoPendingException(); 1454 } 1455 } 1456 1457 virtual void Finalize() { 1458 delete this; 1459 } 1460 1461 private: 1462 ParallelCompilationManager* const manager_; 1463 const size_t end_; 1464 Callback* const callback_; 1465 }; 1466 1467 AtomicInteger index_; 1468 ClassLinker* const class_linker_; 1469 const jobject class_loader_; 1470 CompilerDriver* const compiler_; 1471 const DexFile* const dex_file_; 1472 ThreadPool* const thread_pool_; 1473 1474 DISALLOW_COPY_AND_ASSIGN(ParallelCompilationManager); 1475}; 1476 1477// Return true if the class should be skipped during compilation. 1478// 1479// The first case where we skip is for redundant class definitions in 1480// the boot classpath. We skip all but the first definition in that case. 1481// 1482// The second case where we skip is when an app bundles classes found 1483// in the boot classpath. Since at runtime we will select the class from 1484// the boot classpath, we ignore the one from the app. 1485static bool SkipClass(ClassLinker* class_linker, jobject class_loader, const DexFile& dex_file, 1486 const DexFile::ClassDef& class_def) { 1487 const char* descriptor = dex_file.GetClassDescriptor(class_def); 1488 if (class_loader == NULL) { 1489 DexFile::ClassPathEntry pair = DexFile::FindInClassPath(descriptor, class_linker->GetBootClassPath()); 1490 CHECK(pair.second != NULL); 1491 if (pair.first != &dex_file) { 1492 LOG(WARNING) << "Skipping class " << descriptor << " from " << dex_file.GetLocation() 1493 << " previously found in " << pair.first->GetLocation(); 1494 return true; 1495 } 1496 return false; 1497 } 1498 return class_linker->IsInBootClassPath(descriptor); 1499} 1500 1501// A fast version of SkipClass above if the class pointer is available 1502// that avoids the expensive FindInClassPath search. 1503static bool SkipClass(jobject class_loader, const DexFile& dex_file, mirror::Class* klass) 1504 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1505 DCHECK(klass != NULL); 1506 const DexFile& original_dex_file = *klass->GetDexCache()->GetDexFile(); 1507 if (&dex_file != &original_dex_file) { 1508 if (class_loader == NULL) { 1509 LOG(WARNING) << "Skipping class " << PrettyDescriptor(klass) << " from " 1510 << dex_file.GetLocation() << " previously found in " 1511 << original_dex_file.GetLocation(); 1512 } 1513 return true; 1514 } 1515 return false; 1516} 1517 1518static void ResolveClassFieldsAndMethods(const ParallelCompilationManager* manager, 1519 size_t class_def_index) 1520 LOCKS_EXCLUDED(Locks::mutator_lock_) { 1521 ATRACE_CALL(); 1522 Thread* self = Thread::Current(); 1523 jobject jclass_loader = manager->GetClassLoader(); 1524 const DexFile& dex_file = *manager->GetDexFile(); 1525 ClassLinker* class_linker = manager->GetClassLinker(); 1526 1527 // If an instance field is final then we need to have a barrier on the return, static final 1528 // fields are assigned within the lock held for class initialization. Conservatively assume 1529 // constructor barriers are always required. 1530 bool requires_constructor_barrier = true; 1531 1532 // Method and Field are the worst. We can't resolve without either 1533 // context from the code use (to disambiguate virtual vs direct 1534 // method and instance vs static field) or from class 1535 // definitions. While the compiler will resolve what it can as it 1536 // needs it, here we try to resolve fields and methods used in class 1537 // definitions, since many of them many never be referenced by 1538 // generated code. 1539 const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); 1540 if (!SkipClass(class_linker, jclass_loader, dex_file, class_def)) { 1541 ScopedObjectAccess soa(self); 1542 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), soa.Decode<mirror::ClassLoader*>(jclass_loader)); 1543 SirtRef<mirror::DexCache> dex_cache(soa.Self(), class_linker->FindDexCache(dex_file)); 1544 // Resolve the class. 1545 mirror::Class* klass = class_linker->ResolveType(dex_file, class_def.class_idx_, dex_cache, 1546 class_loader); 1547 bool resolve_fields_and_methods; 1548 if (klass == NULL) { 1549 // Class couldn't be resolved, for example, super-class is in a different dex file. Don't 1550 // attempt to resolve methods and fields when there is no declaring class. 1551 CHECK(soa.Self()->IsExceptionPending()); 1552 soa.Self()->ClearException(); 1553 resolve_fields_and_methods = false; 1554 } else { 1555 resolve_fields_and_methods = manager->GetCompiler()->IsImage(); 1556 } 1557 // Note the class_data pointer advances through the headers, 1558 // static fields, instance fields, direct methods, and virtual 1559 // methods. 1560 const byte* class_data = dex_file.GetClassData(class_def); 1561 if (class_data == NULL) { 1562 // Empty class such as a marker interface. 1563 requires_constructor_barrier = false; 1564 } else { 1565 ClassDataItemIterator it(dex_file, class_data); 1566 while (it.HasNextStaticField()) { 1567 if (resolve_fields_and_methods) { 1568 mirror::ArtField* field = class_linker->ResolveField(dex_file, it.GetMemberIndex(), 1569 dex_cache, class_loader, true); 1570 if (field == NULL) { 1571 CHECK(soa.Self()->IsExceptionPending()); 1572 soa.Self()->ClearException(); 1573 } 1574 } 1575 it.Next(); 1576 } 1577 // We require a constructor barrier if there are final instance fields. 1578 requires_constructor_barrier = false; 1579 while (it.HasNextInstanceField()) { 1580 if ((it.GetMemberAccessFlags() & kAccFinal) != 0) { 1581 requires_constructor_barrier = true; 1582 } 1583 if (resolve_fields_and_methods) { 1584 mirror::ArtField* field = class_linker->ResolveField(dex_file, it.GetMemberIndex(), 1585 dex_cache, class_loader, false); 1586 if (field == NULL) { 1587 CHECK(soa.Self()->IsExceptionPending()); 1588 soa.Self()->ClearException(); 1589 } 1590 } 1591 it.Next(); 1592 } 1593 if (resolve_fields_and_methods) { 1594 while (it.HasNextDirectMethod()) { 1595 mirror::ArtMethod* method = class_linker->ResolveMethod(dex_file, it.GetMemberIndex(), 1596 dex_cache, class_loader, NULL, 1597 it.GetMethodInvokeType(class_def)); 1598 if (method == NULL) { 1599 CHECK(soa.Self()->IsExceptionPending()); 1600 soa.Self()->ClearException(); 1601 } 1602 it.Next(); 1603 } 1604 while (it.HasNextVirtualMethod()) { 1605 mirror::ArtMethod* method = class_linker->ResolveMethod(dex_file, it.GetMemberIndex(), 1606 dex_cache, class_loader, NULL, 1607 it.GetMethodInvokeType(class_def)); 1608 if (method == NULL) { 1609 CHECK(soa.Self()->IsExceptionPending()); 1610 soa.Self()->ClearException(); 1611 } 1612 it.Next(); 1613 } 1614 DCHECK(!it.HasNext()); 1615 } 1616 } 1617 } 1618 if (requires_constructor_barrier) { 1619 manager->GetCompiler()->AddRequiresConstructorBarrier(self, &dex_file, class_def_index); 1620 } 1621} 1622 1623static void ResolveType(const ParallelCompilationManager* manager, size_t type_idx) 1624 LOCKS_EXCLUDED(Locks::mutator_lock_) { 1625 // Class derived values are more complicated, they require the linker and loader. 1626 ScopedObjectAccess soa(Thread::Current()); 1627 ClassLinker* class_linker = manager->GetClassLinker(); 1628 const DexFile& dex_file = *manager->GetDexFile(); 1629 SirtRef<mirror::DexCache> dex_cache(soa.Self(), class_linker->FindDexCache(dex_file)); 1630 SirtRef<mirror::ClassLoader> class_loader( 1631 soa.Self(), soa.Decode<mirror::ClassLoader*>(manager->GetClassLoader())); 1632 mirror::Class* klass = class_linker->ResolveType(dex_file, type_idx, dex_cache, class_loader); 1633 1634 if (klass == NULL) { 1635 CHECK(soa.Self()->IsExceptionPending()); 1636 mirror::Throwable* exception = soa.Self()->GetException(NULL); 1637 VLOG(compiler) << "Exception during type resolution: " << exception->Dump(); 1638 if (strcmp("Ljava/lang/OutOfMemoryError;", 1639 ClassHelper(exception->GetClass()).GetDescriptor()) == 0) { 1640 // There's little point continuing compilation if the heap is exhausted. 1641 LOG(FATAL) << "Out of memory during type resolution for compilation"; 1642 } 1643 soa.Self()->ClearException(); 1644 } 1645} 1646 1647void CompilerDriver::ResolveDexFile(jobject class_loader, const DexFile& dex_file, 1648 ThreadPool& thread_pool, TimingLogger& timings) { 1649 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 1650 1651 // TODO: we could resolve strings here, although the string table is largely filled with class 1652 // and method names. 1653 1654 ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, thread_pool); 1655 if (IsImage()) { 1656 // For images we resolve all types, such as array, whereas for applications just those with 1657 // classdefs are resolved by ResolveClassFieldsAndMethods. 1658 timings.NewSplit("Resolve Types"); 1659 context.ForAll(0, dex_file.NumTypeIds(), ResolveType, thread_count_); 1660 } 1661 1662 timings.NewSplit("Resolve MethodsAndFields"); 1663 context.ForAll(0, dex_file.NumClassDefs(), ResolveClassFieldsAndMethods, thread_count_); 1664} 1665 1666void CompilerDriver::Verify(jobject class_loader, const std::vector<const DexFile*>& dex_files, 1667 ThreadPool& thread_pool, TimingLogger& timings) { 1668 for (size_t i = 0; i != dex_files.size(); ++i) { 1669 const DexFile* dex_file = dex_files[i]; 1670 CHECK(dex_file != NULL); 1671 VerifyDexFile(class_loader, *dex_file, thread_pool, timings); 1672 } 1673} 1674 1675static void VerifyClass(const ParallelCompilationManager* manager, size_t class_def_index) 1676 LOCKS_EXCLUDED(Locks::mutator_lock_) { 1677 ATRACE_CALL(); 1678 ScopedObjectAccess soa(Thread::Current()); 1679 const DexFile& dex_file = *manager->GetDexFile(); 1680 const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); 1681 const char* descriptor = dex_file.GetClassDescriptor(class_def); 1682 ClassLinker* class_linker = manager->GetClassLinker(); 1683 jobject jclass_loader = manager->GetClassLoader(); 1684 SirtRef<mirror::ClassLoader> class_loader( 1685 soa.Self(), soa.Decode<mirror::ClassLoader*>(jclass_loader)); 1686 SirtRef<mirror::Class> klass(soa.Self(), class_linker->FindClass(descriptor, class_loader)); 1687 if (klass.get() == nullptr) { 1688 CHECK(soa.Self()->IsExceptionPending()); 1689 soa.Self()->ClearException(); 1690 1691 /* 1692 * At compile time, we can still structurally verify the class even if FindClass fails. 1693 * This is to ensure the class is structurally sound for compilation. An unsound class 1694 * will be rejected by the verifier and later skipped during compilation in the compiler. 1695 */ 1696 SirtRef<mirror::DexCache> dex_cache(soa.Self(), class_linker->FindDexCache(dex_file)); 1697 std::string error_msg; 1698 if (verifier::MethodVerifier::VerifyClass(&dex_file, dex_cache, class_loader, &class_def, true, 1699 &error_msg) == 1700 verifier::MethodVerifier::kHardFailure) { 1701 LOG(ERROR) << "Verification failed on class " << PrettyDescriptor(descriptor) 1702 << " because: " << error_msg; 1703 } 1704 } else if (!SkipClass(jclass_loader, dex_file, klass.get())) { 1705 CHECK(klass->IsResolved()) << PrettyClass(klass.get()); 1706 class_linker->VerifyClass(klass); 1707 1708 if (klass->IsErroneous()) { 1709 // ClassLinker::VerifyClass throws, which isn't useful in the compiler. 1710 CHECK(soa.Self()->IsExceptionPending()); 1711 soa.Self()->ClearException(); 1712 } 1713 1714 CHECK(klass->IsCompileTimeVerified() || klass->IsErroneous()) 1715 << PrettyDescriptor(klass.get()) << ": state=" << klass->GetStatus(); 1716 } 1717 soa.Self()->AssertNoPendingException(); 1718} 1719 1720void CompilerDriver::VerifyDexFile(jobject class_loader, const DexFile& dex_file, 1721 ThreadPool& thread_pool, TimingLogger& timings) { 1722 timings.NewSplit("Verify Dex File"); 1723 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 1724 ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, thread_pool); 1725 context.ForAll(0, dex_file.NumClassDefs(), VerifyClass, thread_count_); 1726} 1727 1728static const char* class_initializer_black_list[] = { 1729 "Landroid/app/ActivityThread;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1730 "Landroid/bluetooth/BluetoothAudioGateway;", // Calls android.bluetooth.BluetoothAudioGateway.classInitNative(). 1731 "Landroid/bluetooth/HeadsetBase;", // Calls android.bluetooth.HeadsetBase.classInitNative(). 1732 "Landroid/content/res/CompatibilityInfo;", // Requires android.util.DisplayMetrics -..-> android.os.SystemProperties.native_get_int. 1733 "Landroid/content/res/CompatibilityInfo$1;", // Requires android.util.DisplayMetrics -..-> android.os.SystemProperties.native_get_int. 1734 "Landroid/content/UriMatcher;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1735 "Landroid/database/CursorWindow;", // Requires android.util.DisplayMetrics -..-> android.os.SystemProperties.native_get_int. 1736 "Landroid/database/sqlite/SQLiteConnection;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1737 "Landroid/database/sqlite/SQLiteConnection$Operation;", // Requires SimpleDateFormat -> java.util.Locale. 1738 "Landroid/database/sqlite/SQLiteDatabaseConfiguration;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1739 "Landroid/database/sqlite/SQLiteDebug;", // Calls android.util.Log.isLoggable. 1740 "Landroid/database/sqlite/SQLiteOpenHelper;", // Calls Class.getSimpleName -> Class.isAnonymousClass -> Class.getDex. 1741 "Landroid/database/sqlite/SQLiteQueryBuilder;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1742 "Landroid/drm/DrmManagerClient;", // Calls System.loadLibrary. 1743 "Landroid/graphics/drawable/AnimatedRotateDrawable;", // Sub-class of Drawable. 1744 "Landroid/graphics/drawable/AnimationDrawable;", // Sub-class of Drawable. 1745 "Landroid/graphics/drawable/BitmapDrawable;", // Sub-class of Drawable. 1746 "Landroid/graphics/drawable/ClipDrawable;", // Sub-class of Drawable. 1747 "Landroid/graphics/drawable/ColorDrawable;", // Sub-class of Drawable. 1748 "Landroid/graphics/drawable/Drawable;", // Requires android.graphics.Rect. 1749 "Landroid/graphics/drawable/DrawableContainer;", // Sub-class of Drawable. 1750 "Landroid/graphics/drawable/GradientDrawable;", // Sub-class of Drawable. 1751 "Landroid/graphics/drawable/LayerDrawable;", // Sub-class of Drawable. 1752 "Landroid/graphics/drawable/NinePatchDrawable;", // Sub-class of Drawable. 1753 "Landroid/graphics/drawable/RotateDrawable;", // Sub-class of Drawable. 1754 "Landroid/graphics/drawable/ScaleDrawable;", // Sub-class of Drawable. 1755 "Landroid/graphics/drawable/ShapeDrawable;", // Sub-class of Drawable. 1756 "Landroid/graphics/drawable/StateListDrawable;", // Sub-class of Drawable. 1757 "Landroid/graphics/drawable/TransitionDrawable;", // Sub-class of Drawable. 1758 "Landroid/graphics/Matrix;", // Calls android.graphics.Matrix.native_create. 1759 "Landroid/graphics/Matrix$1;", // Requires Matrix. 1760 "Landroid/graphics/PixelFormat;", // Calls android.graphics.PixelFormat.nativeClassInit(). 1761 "Landroid/graphics/Rect;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1762 "Landroid/graphics/SurfaceTexture;", // Calls android.graphics.SurfaceTexture.nativeClassInit(). 1763 "Landroid/graphics/Typeface;", // Calls android.graphics.Typeface.nativeCreate. 1764 "Landroid/inputmethodservice/ExtractEditText;", // Requires android.widget.TextView. 1765 "Landroid/media/AmrInputStream;", // Calls OsConstants.initConstants. 1766 "Landroid/media/CamcorderProfile;", // Calls OsConstants.initConstants. 1767 "Landroid/media/CameraProfile;", // Calls System.loadLibrary. 1768 "Landroid/media/DecoderCapabilities;", // Calls System.loadLibrary. 1769 "Landroid/media/EncoderCapabilities;", // Calls OsConstants.initConstants. 1770 "Landroid/media/ExifInterface;", // Calls OsConstants.initConstants. 1771 "Landroid/media/MediaCodec;", // Calls OsConstants.initConstants. 1772 "Landroid/media/MediaCodecList;", // Calls OsConstants.initConstants. 1773 "Landroid/media/MediaCrypto;", // Calls OsConstants.initConstants. 1774 "Landroid/media/MediaDrm;", // Calls OsConstants.initConstants. 1775 "Landroid/media/MediaExtractor;", // Calls OsConstants.initConstants. 1776 "Landroid/media/MediaFile;", // Requires DecoderCapabilities. 1777 "Landroid/media/MediaMetadataRetriever;", // Calls OsConstants.initConstants. 1778 "Landroid/media/MediaMuxer;", // Calls OsConstants.initConstants. 1779 "Landroid/media/MediaPlayer;", // Calls System.loadLibrary. 1780 "Landroid/media/MediaRecorder;", // Calls System.loadLibrary. 1781 "Landroid/media/MediaScanner;", // Calls System.loadLibrary. 1782 "Landroid/media/ResampleInputStream;", // Calls OsConstants.initConstants. 1783 "Landroid/media/SoundPool;", // Calls OsConstants.initConstants. 1784 "Landroid/media/videoeditor/MediaArtistNativeHelper;", // Calls OsConstants.initConstants. 1785 "Landroid/media/videoeditor/VideoEditorProfile;", // Calls OsConstants.initConstants. 1786 "Landroid/mtp/MtpDatabase;", // Calls OsConstants.initConstants. 1787 "Landroid/mtp/MtpDevice;", // Calls OsConstants.initConstants. 1788 "Landroid/mtp/MtpServer;", // Calls OsConstants.initConstants. 1789 "Landroid/net/NetworkInfo;", // Calls java.util.EnumMap.<init> -> java.lang.Enum.getSharedConstants -> System.identityHashCode. 1790 "Landroid/net/Proxy;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1791 "Landroid/net/SSLCertificateSocketFactory;", // Requires javax.net.ssl.HttpsURLConnection. 1792 "Landroid/net/Uri$AbstractHierarchicalUri;", // Requires Uri. 1793 "Landroid/net/Uri$HierarchicalUri;", // Requires Uri. 1794 "Landroid/net/Uri$OpaqueUri;", // Requires Uri. 1795 "Landroid/net/Uri$StringUri;", // Requires Uri. 1796 "Landroid/net/Uri;", // Calls Class.getSimpleName -> Class.isAnonymousClass -> Class.getDex. 1797 "Landroid/net/WebAddress;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1798 "Landroid/net/wifi/WifiNative;", // Calls new LocalLog -> new Time -> TimeZone -> Pattern.compile. 1799 "Landroid/nfc/NdefRecord;", // Calls String.getBytes -> java.nio.charset.Charset. 1800 "Landroid/opengl/EGL14;", // Calls android.opengl.EGL14._nativeClassInit. 1801 "Landroid/opengl/GLES10;", // Calls android.opengl.GLES10._nativeClassInit. 1802 "Landroid/opengl/GLES10Ext;", // Calls android.opengl.GLES10Ext._nativeClassInit. 1803 "Landroid/opengl/GLES11;", // Requires GLES10. 1804 "Landroid/opengl/GLES11Ext;", // Calls android.opengl.GLES11Ext._nativeClassInit. 1805 "Landroid/opengl/GLES20;", // Calls android.opengl.GLES20._nativeClassInit. 1806 "Landroid/opengl/GLUtils;", // Calls android.opengl.GLUtils.nativeClassInit. 1807 "Landroid/os/Build;", // Calls -..-> android.os.SystemProperties.native_get. 1808 "Landroid/os/Build$VERSION;", // Requires Build. 1809 "Landroid/os/Bundle;", // Calls android.os.Parcel.obtain -..> Parcel.nativeCreate. 1810 "Landroid/os/Debug;", // Requires android.os.Environment. 1811 "Landroid/os/Environment;", // Calls System.getenv. 1812 "Landroid/os/FileUtils;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1813 "Landroid/os/StrictMode;", // Calls android.util.Log.isLoggable. 1814 "Landroid/os/StrictMode$VmPolicy;", // Requires StrictMode. 1815 "Landroid/os/Trace;", // Calls android.os.Trace.nativeGetEnabledTags. 1816 "Landroid/os/UEventObserver;", // Calls Class.getSimpleName -> Class.isAnonymousClass -> Class.getDex. 1817 "Landroid/provider/ContactsContract;", // Calls OsConstants.initConstants. 1818 "Landroid/provider/Settings$Global;", // Calls OsConstants.initConstants. 1819 "Landroid/provider/Settings$Secure;", // Requires android.net.Uri. 1820 "Landroid/provider/Settings$System;", // Requires android.net.Uri. 1821 "Landroid/renderscript/RenderScript;", // Calls System.loadLibrary. 1822 "Landroid/server/BluetoothService;", // Calls android.server.BluetoothService.classInitNative. 1823 "Landroid/server/BluetoothEventLoop;", // Calls android.server.BluetoothEventLoop.classInitNative. 1824 "Landroid/telephony/PhoneNumberUtils;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1825 "Landroid/telephony/TelephonyManager;", // Calls OsConstants.initConstants. 1826 "Landroid/text/AutoText;", // Requires android.util.DisplayMetrics -..-> android.os.SystemProperties.native_get_int. 1827 "Landroid/text/Layout;", // Calls com.android.internal.util.ArrayUtils.emptyArray -> System.identityHashCode. 1828 "Landroid/text/BoringLayout;", // Requires Layout. 1829 "Landroid/text/DynamicLayout;", // Requires Layout. 1830 "Landroid/text/Html$HtmlParser;", // Calls -..-> String.toLowerCase -> java.util.Locale. 1831 "Landroid/text/StaticLayout;", // Requires Layout. 1832 "Landroid/text/TextUtils;", // Requires android.util.DisplayMetrics. 1833 "Landroid/util/DisplayMetrics;", // Calls SystemProperties.native_get_int. 1834 "Landroid/util/Patterns;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1835 "Landroid/view/Choreographer;", // Calls SystemProperties.native_get_boolean. 1836 "Landroid/util/Patterns;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1837 "Landroid/view/GLES20Canvas;", // Calls GLES20Canvas.nIsAvailable(). 1838 "Landroid/view/GLES20RecordingCanvas;", // Requires android.view.GLES20Canvas. 1839 "Landroid/view/GestureDetector;", // Calls android.view.GLES20Canvas.nIsAvailable. 1840 "Landroid/view/HardwareRenderer$Gl20Renderer;", // Requires SystemProperties.native_get. 1841 "Landroid/view/HardwareRenderer$GlRenderer;", // Requires SystemProperties.native_get. 1842 "Landroid/view/InputEventConsistencyVerifier;", // Requires android.os.Build. 1843 "Landroid/view/Surface;", // Requires SystemProperties.native_get. 1844 "Landroid/view/SurfaceControl;", // Calls OsConstants.initConstants. 1845 "Landroid/view/animation/AlphaAnimation;", // Requires Animation. 1846 "Landroid/view/animation/Animation;", // Calls SystemProperties.native_get_boolean. 1847 "Landroid/view/animation/AnimationSet;", // Calls OsConstants.initConstants. 1848 "Landroid/view/textservice/SpellCheckerSubtype;", // Calls Class.getDex(). 1849 "Landroid/webkit/JniUtil;", // Calls System.loadLibrary. 1850 "Landroid/webkit/PluginManager;", // // Calls OsConstants.initConstants. 1851 "Landroid/webkit/WebViewCore;", // Calls System.loadLibrary. 1852 "Landroid/webkit/WebViewFactory;", // Calls -..-> android.os.SystemProperties.native_get. 1853 "Landroid/webkit/WebViewFactory$Preloader;", // Calls to Class.forName. 1854 "Landroid/webkit/WebViewInputDispatcher;", // Calls Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1855 "Landroid/webkit/URLUtil;", // Calls Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1856 "Landroid/widget/AutoCompleteTextView;", // Requires TextView. 1857 "Landroid/widget/Button;", // Requires TextView. 1858 "Landroid/widget/CheckBox;", // Requires TextView. 1859 "Landroid/widget/CheckedTextView;", // Requires TextView. 1860 "Landroid/widget/CompoundButton;", // Requires TextView. 1861 "Landroid/widget/EditText;", // Requires TextView. 1862 "Landroid/widget/NumberPicker;", // Requires java.util.Locale. 1863 "Landroid/widget/ScrollBarDrawable;", // Sub-class of Drawable. 1864 "Landroid/widget/SearchView$SearchAutoComplete;", // Requires TextView. 1865 "Landroid/widget/Switch;", // Requires TextView. 1866 "Landroid/widget/TextView;", // Calls Paint.<init> -> Paint.native_init. 1867 "Lcom/android/i18n/phonenumbers/AsYouTypeFormatter;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1868 "Lcom/android/i18n/phonenumbers/MetadataManager;", // Calls OsConstants.initConstants. 1869 "Lcom/android/i18n/phonenumbers/PhoneNumberMatcher;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1870 "Lcom/android/i18n/phonenumbers/PhoneNumberUtil;", // Requires java.util.logging.LogManager. 1871 "Lcom/android/i18n/phonenumbers/geocoding/AreaCodeMap;", // Calls OsConstants.initConstants. 1872 "Lcom/android/i18n/phonenumbers/geocoding/PhoneNumberOfflineGeocoder;", // Calls OsConstants.initConstants. 1873 "Lcom/android/internal/os/SamplingProfilerIntegration;", // Calls SystemProperties.native_get_int. 1874 "Lcom/android/internal/policy/impl/PhoneWindow;", // Calls android.os.Binder.init. 1875 "Lcom/android/internal/view/menu/ActionMenuItemView;", // Requires TextView. 1876 "Lcom/android/internal/widget/DialogTitle;", // Requires TextView. 1877 "Lcom/android/org/bouncycastle/asn1/StreamUtil;", // Calls Runtime.getRuntime().maxMemory(). 1878 "Lcom/android/org/bouncycastle/asn1/pkcs/MacData;", // Calls native ... -> java.math.NativeBN.BN_new(). 1879 "Lcom/android/org/bouncycastle/asn1/pkcs/RSASSAPSSparams;", // Calls native ... -> java.math.NativeBN.BN_new(). 1880 "Lcom/android/org/bouncycastle/asn1/cms/SignedData;", // Calls native ... -> java.math.NativeBN.BN_new(). 1881 "Lcom/android/org/bouncycastle/asn1/x509/GeneralSubtree;", // Calls native ... -> java.math.NativeBN.BN_new(). 1882 "Lcom/android/org/bouncycastle/asn1/x9/X9ECParameters;", // Calls native ... -> java.math.NativeBN.BN_new(). 1883 "Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$MD5;", // Requires com.android.org.conscrypt.NativeCrypto. 1884 "Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$SHA1;", // Requires com.android.org.conscrypt.NativeCrypto. 1885 "Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$SHA256;", // Requires com.android.org.conscrypt.NativeCrypto. 1886 "Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$SHA384;", // Requires com.android.org.conscrypt.NativeCrypto. 1887 "Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$SHA512;", // Requires com.android.org.conscrypt.NativeCrypto. 1888 "Lcom/android/org/bouncycastle/crypto/engines/RSABlindedEngine;", // Calls native ... -> java.math.NativeBN.BN_new(). 1889 "Lcom/android/org/bouncycastle/crypto/generators/DHKeyGeneratorHelper;", // Calls native ... -> java.math.NativeBN.BN_new(). 1890 "Lcom/android/org/bouncycastle/crypto/generators/DHParametersGenerator;", // Calls native ... -> java.math.NativeBN.BN_new(). 1891 "Lcom/android/org/bouncycastle/crypto/generators/DHParametersHelper;", // Calls System.getenv -> OsConstants.initConstants. 1892 "Lcom/android/org/bouncycastle/crypto/generators/DSAKeyPairGenerator;", // Calls native ... -> java.math.NativeBN.BN_new(). 1893 "Lcom/android/org/bouncycastle/crypto/generators/DSAParametersGenerator;", // Calls native ... -> java.math.NativeBN.BN_new(). 1894 "Lcom/android/org/bouncycastle/crypto/generators/RSAKeyPairGenerator;", // Calls native ... -> java.math.NativeBN.BN_new(). 1895 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;", // Calls OsConstants.initConstants. 1896 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/dsa/KeyPairGeneratorSpi;", // Calls OsConstants.initConstants. 1897 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$EC;", // Calls OsConstants.initConstants. 1898 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$ECDH;", // Calls OsConstants.initConstants. 1899 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$ECDHC;", // Calls OsConstants.initConstants. 1900 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$ECDSA;", // Calls OsConstants.initConstants. 1901 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$ECMQV;", // Calls OsConstants.initConstants. 1902 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi;", // Calls OsConstants.initConstants. 1903 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/rsa/BCRSAPrivateCrtKey;", // Calls native ... -> java.math.NativeBN.BN_new(). 1904 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/rsa/BCRSAPrivateKey;", // Calls native ... -> java.math.NativeBN.BN_new(). 1905 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/rsa/KeyPairGeneratorSpi;", // Calls OsConstants.initConstants. 1906 "Lcom/android/org/bouncycastle/jcajce/provider/keystore/pkcs12/PKCS12KeyStoreSpi$BCPKCS12KeyStore;", // Calls Thread.currentThread. 1907 "Lcom/android/org/bouncycastle/jcajce/provider/keystore/pkcs12/PKCS12KeyStoreSpi;", // Calls Thread.currentThread. 1908 "Lcom/android/org/bouncycastle/jce/PKCS10CertificationRequest;", // Calls native ... -> java.math.NativeBN.BN_new(). 1909 "Lcom/android/org/bouncycastle/jce/provider/CertBlacklist;", // Calls System.getenv -> OsConstants.initConstants. 1910 "Lcom/android/org/bouncycastle/jce/provider/JCERSAPrivateCrtKey;", // Calls native ... -> java.math.NativeBN.BN_new(). 1911 "Lcom/android/org/bouncycastle/jce/provider/JCERSAPrivateKey;", // Calls native ... -> java.math.NativeBN.BN_new(). 1912 "Lcom/android/org/bouncycastle/jce/provider/PKIXCertPathValidatorSpi;", // Calls System.getenv -> OsConstants.initConstants. 1913 "Lcom/android/org/bouncycastle/math/ec/ECConstants;", // Calls native ... -> java.math.NativeBN.BN_new(). 1914 "Lcom/android/org/bouncycastle/math/ec/Tnaf;", // Calls native ... -> java.math.NativeBN.BN_new(). 1915 "Lcom/android/org/bouncycastle/util/BigIntegers;", // Calls native ... -> java.math.NativeBN.BN_new(). 1916 "Lcom/android/org/bouncycastle/x509/X509Util;", // Calls native ... -> java.math.NativeBN.BN_new(). 1917 "Lcom/android/org/conscrypt/CipherSuite;", // Calls OsConstants.initConstants. 1918 "Lcom/android/org/conscrypt/FileClientSessionCache$CacheFile;", // Calls OsConstants.initConstants. 1919 "Lcom/android/org/conscrypt/HandshakeIODataStream;", // Calls OsConstants.initConstants. 1920 "Lcom/android/org/conscrypt/Logger;", // Calls OsConstants.initConstants. 1921 "Lcom/android/org/conscrypt/NativeCrypto;", // Calls native NativeCrypto.clinit(). 1922 "Lcom/android/org/conscrypt/OpenSSLECKeyPairGenerator;", // Calls OsConstants.initConstants. 1923 "Lcom/android/org/conscrypt/OpenSSLEngine;", // Requires com.android.org.conscrypt.NativeCrypto. 1924 "Lcom/android/org/conscrypt/OpenSSLMac$HmacMD5;", // Calls native NativeCrypto.clinit(). 1925 "Lcom/android/org/conscrypt/OpenSSLMac$HmacSHA1;", // Calls native NativeCrypto.clinit(). 1926 "Lcom/android/org/conscrypt/OpenSSLMac$HmacSHA256;", // Calls native NativeCrypto.clinit(). 1927 "Lcom/android/org/conscrypt/OpenSSLMac$HmacSHA384;", // Calls native NativeCrypto.clinit(). 1928 "Lcom/android/org/conscrypt/OpenSSLMac$HmacSHA512;", // Calls native NativeCrypto.clinit(). 1929 "Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$MD5;", // Requires com.android.org.conscrypt.NativeCrypto. 1930 "Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$SHA1;", // Requires com.android.org.conscrypt.NativeCrypto. 1931 "Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$SHA256;", // Requires com.android.org.conscrypt.NativeCrypto. 1932 "Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$SHA384;", // Requires com.android.org.conscrypt.NativeCrypto. 1933 "Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$SHA512;", // Requires com.android.org.conscrypt.NativeCrypto. 1934 "Lcom/android/org/conscrypt/OpenSSLX509CertPath;", // Calls OsConstants.initConstants. 1935 "Lcom/android/org/conscrypt/OpenSSLX509CertificateFactory;", // Calls OsConstants.initConstants. 1936 "Lcom/android/org/conscrypt/PRF;", // Calls OsConstants.initConstants. 1937 "Lcom/android/org/conscrypt/SSLSessionImpl;", // Calls OsConstants.initConstants. 1938 "Lcom/android/org/conscrypt/TrustedCertificateStore;", // Calls System.getenv -> OsConstants.initConstants. 1939 "Lcom/android/okhttp/ConnectionPool;", // Calls OsConstants.initConstants. 1940 "Lcom/android/okhttp/OkHttpClient;", // Calls OsConstants.initConstants. 1941 "Lcom/android/okhttp/internal/DiskLruCache;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1942 "Lcom/android/okhttp/internal/Util;", // Calls OsConstants.initConstants. 1943 "Lcom/android/okhttp/internal/http/HttpsURLConnectionImpl;", // Calls VMClassLoader.getBootClassPathSize. 1944 "Lcom/android/okhttp/internal/spdy/SpdyConnection;", // Calls OsConstants.initConstants. 1945 "Lcom/android/okhttp/internal/spdy/SpdyReader;", // Calls OsConstants.initConstants. 1946 "Lcom/android/okhttp/internal/tls/OkHostnameVerifier;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1947 "Lcom/google/android/gles_jni/EGLContextImpl;", // Calls com.google.android.gles_jni.EGLImpl._nativeClassInit. 1948 "Lcom/google/android/gles_jni/EGLImpl;", // Calls com.google.android.gles_jni.EGLImpl._nativeClassInit. 1949 "Lcom/google/android/gles_jni/GLImpl;", // Calls com.google.android.gles_jni.GLImpl._nativeClassInit. 1950 "Lgov/nist/core/GenericObject;", // Calls OsConstants.initConstants. 1951 "Lgov/nist/core/Host;", // Calls OsConstants.initConstants. 1952 "Lgov/nist/core/HostPort;", // Calls OsConstants.initConstants. 1953 "Lgov/nist/core/NameValue;", // Calls OsConstants.initConstants. 1954 "Lgov/nist/core/net/DefaultNetworkLayer;", // Calls OsConstants.initConstants. 1955 "Lgov/nist/javax/sip/Utils;", // Calls OsConstants.initConstants. 1956 "Lgov/nist/javax/sip/address/AddressImpl;", // Calls OsConstants.initConstants. 1957 "Lgov/nist/javax/sip/address/Authority;", // Calls OsConstants.initConstants. 1958 "Lgov/nist/javax/sip/address/GenericURI;", // Calls OsConstants.initConstants. 1959 "Lgov/nist/javax/sip/address/NetObject;", // Calls OsConstants.initConstants. 1960 "Lgov/nist/javax/sip/address/SipUri;", // Calls OsConstants.initConstants. 1961 "Lgov/nist/javax/sip/address/TelephoneNumber;", // Calls OsConstants.initConstants. 1962 "Lgov/nist/javax/sip/address/UserInfo;", // Calls OsConstants.initConstants. 1963 "Lgov/nist/javax/sip/header/Accept;", // Calls OsConstants.initConstants. 1964 "Lgov/nist/javax/sip/header/AcceptEncoding;", // Calls OsConstants.initConstants. 1965 "Lgov/nist/javax/sip/header/AcceptLanguage;", // Calls OsConstants.initConstants. 1966 "Lgov/nist/javax/sip/header/AddressParametersHeader;", // Calls OsConstants.initConstants. 1967 "Lgov/nist/javax/sip/header/AlertInfoList;", // Calls OsConstants.initConstants. 1968 "Lgov/nist/javax/sip/header/AllowEvents;", // Calls OsConstants.initConstants. 1969 "Lgov/nist/javax/sip/header/AllowEventsList;", // Calls OsConstants.initConstants. 1970 "Lgov/nist/javax/sip/header/AuthenticationInfo;", // Calls OsConstants.initConstants. 1971 "Lgov/nist/javax/sip/header/Authorization;", // Calls OsConstants.initConstants. 1972 "Lgov/nist/javax/sip/header/CSeq;", // Calls OsConstants.initConstants. 1973 "Lgov/nist/javax/sip/header/CallIdentifier;", // Calls OsConstants.initConstants. 1974 "Lgov/nist/javax/sip/header/Challenge;", // Calls OsConstants.initConstants. 1975 "Lgov/nist/javax/sip/header/ContactList;", // Calls OsConstants.initConstants. 1976 "Lgov/nist/javax/sip/header/ContentEncoding;", // Calls OsConstants.initConstants. 1977 "Lgov/nist/javax/sip/header/ContentEncodingList;", // Calls OsConstants.initConstants. 1978 "Lgov/nist/javax/sip/header/ContentLanguageList;", // Calls OsConstants.initConstants. 1979 "Lgov/nist/javax/sip/header/ContentType;", // Calls OsConstants.initConstants. 1980 "Lgov/nist/javax/sip/header/Credentials;", // Calls OsConstants.initConstants. 1981 "Lgov/nist/javax/sip/header/ErrorInfoList;", // Calls OsConstants.initConstants. 1982 "Lgov/nist/javax/sip/header/Expires;", // Calls OsConstants.initConstants. 1983 "Lgov/nist/javax/sip/header/From;", // Calls OsConstants.initConstants. 1984 "Lgov/nist/javax/sip/header/MimeVersion;", // Calls OsConstants.initConstants. 1985 "Lgov/nist/javax/sip/header/NameMap;", // Calls OsConstants.initConstants. 1986 "Lgov/nist/javax/sip/header/Priority;", // Calls OsConstants.initConstants. 1987 "Lgov/nist/javax/sip/header/Protocol;", // Calls OsConstants.initConstants. 1988 "Lgov/nist/javax/sip/header/ProxyAuthenticate;", // Calls OsConstants.initConstants. 1989 "Lgov/nist/javax/sip/header/ProxyAuthenticateList;", // Calls OsConstants.initConstants. 1990 "Lgov/nist/javax/sip/header/ProxyAuthorizationList;", // Calls OsConstants.initConstants. 1991 "Lgov/nist/javax/sip/header/ProxyRequire;", // Calls OsConstants.initConstants. 1992 "Lgov/nist/javax/sip/header/ProxyRequireList;", // Calls OsConstants.initConstants. 1993 "Lgov/nist/javax/sip/header/RSeq;", // Calls OsConstants.initConstants. 1994 "Lgov/nist/javax/sip/header/RecordRoute;", // Calls OsConstants.initConstants. 1995 "Lgov/nist/javax/sip/header/ReferTo;", // Calls OsConstants.initConstants. 1996 "Lgov/nist/javax/sip/header/RequestLine;", // Calls OsConstants.initConstants. 1997 "Lgov/nist/javax/sip/header/Require;", // Calls OsConstants.initConstants. 1998 "Lgov/nist/javax/sip/header/RetryAfter;", // Calls OsConstants.initConstants. 1999 "Lgov/nist/javax/sip/header/SIPETag;", // Calls OsConstants.initConstants. 2000 "Lgov/nist/javax/sip/header/SIPHeader;", // Calls OsConstants.initConstants. 2001 "Lgov/nist/javax/sip/header/SIPHeaderNamesCache;", // Calls OsConstants.initConstants. 2002 "Lgov/nist/javax/sip/header/StatusLine;", // Calls OsConstants.initConstants. 2003 "Lgov/nist/javax/sip/header/SubscriptionState;", // Calls OsConstants.initConstants. 2004 "Lgov/nist/javax/sip/header/TimeStamp;", // Calls OsConstants.initConstants. 2005 "Lgov/nist/javax/sip/header/UserAgent;", // Calls OsConstants.initConstants. 2006 "Lgov/nist/javax/sip/header/Unsupported;", // Calls OsConstants.initConstants. 2007 "Lgov/nist/javax/sip/header/Warning;", // Calls OsConstants.initConstants. 2008 "Lgov/nist/javax/sip/header/ViaList;", // Calls OsConstants.initConstants. 2009 "Lgov/nist/javax/sip/header/extensions/Join;", // Calls OsConstants.initConstants. 2010 "Lgov/nist/javax/sip/header/extensions/References;", // Calls OsConstants.initConstants. 2011 "Lgov/nist/javax/sip/header/extensions/Replaces;", // Calls OsConstants.initConstants. 2012 "Lgov/nist/javax/sip/header/ims/PAccessNetworkInfo;", // Calls OsConstants.initConstants. 2013 "Lgov/nist/javax/sip/header/ims/PAssertedIdentity;", // Calls OsConstants.initConstants. 2014 "Lgov/nist/javax/sip/header/ims/PAssertedIdentityList;", // Calls OsConstants.initConstants. 2015 "Lgov/nist/javax/sip/header/ims/PAssociatedURI;", // Calls OsConstants.initConstants. 2016 "Lgov/nist/javax/sip/header/ims/PCalledPartyID;", // Calls OsConstants.initConstants. 2017 "Lgov/nist/javax/sip/header/ims/PChargingVector;", // Calls OsConstants.initConstants. 2018 "Lgov/nist/javax/sip/header/ims/PPreferredIdentity;", // Calls OsConstants.initConstants. 2019 "Lgov/nist/javax/sip/header/ims/PVisitedNetworkIDList;", // Calls OsConstants.initConstants. 2020 "Lgov/nist/javax/sip/header/ims/PathList;", // Calls OsConstants.initConstants. 2021 "Lgov/nist/javax/sip/header/ims/SecurityAgree;", // Calls OsConstants.initConstants. 2022 "Lgov/nist/javax/sip/header/ims/SecurityClient;", // Calls OsConstants.initConstants. 2023 "Lgov/nist/javax/sip/header/ims/ServiceRoute;", // Calls OsConstants.initConstants. 2024 "Ljava/io/Console;", // Has FileDescriptor(s). 2025 "Ljava/io/File;", // Calls to Random.<init> -> System.currentTimeMillis -> OsConstants.initConstants. 2026 "Ljava/io/FileDescriptor;", // Requires libcore.io.OsConstants. 2027 "Ljava/io/ObjectInputStream;", // Requires java.lang.ClassLoader$SystemClassLoader. 2028 "Ljava/io/ObjectStreamClass;", // Calls to Class.forName -> java.io.FileDescriptor. 2029 "Ljava/io/ObjectStreamConstants;", // Instance of non-image class SerializablePermission. 2030 "Ljava/lang/ClassLoader$SystemClassLoader;", // Calls System.getProperty -> OsConstants.initConstants. 2031 "Ljava/lang/HexStringParser;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 2032 "Ljava/lang/ProcessManager;", // Calls Thread.currentThread. 2033 "Ljava/lang/Runtime;", // Calls System.getProperty -> OsConstants.initConstants. 2034 "Ljava/lang/System;", // Calls OsConstants.initConstants. 2035 "Ljava/math/BigDecimal;", // Calls native ... -> java.math.NativeBN.BN_new(). 2036 "Ljava/math/BigInteger;", // Calls native ... -> java.math.NativeBN.BN_new(). 2037 "Ljava/math/Primality;", // Calls native ... -> java.math.NativeBN.BN_new(). 2038 "Ljava/math/Multiplication;", // Calls native ... -> java.math.NativeBN.BN_new(). 2039 "Ljava/net/InetAddress;", // Requires libcore.io.OsConstants. 2040 "Ljava/net/Inet4Address;", // Sub-class of InetAddress. 2041 "Ljava/net/Inet6Address;", // Sub-class of InetAddress. 2042 "Ljava/net/InetUnixAddress;", // Sub-class of InetAddress. 2043 "Ljava/net/NetworkInterface;", // Calls to Random.<init> -> System.currentTimeMillis -> OsConstants.initConstants. 2044 "Ljava/nio/charset/Charset;", // Calls Charset.getDefaultCharset -> System.getProperty -> OsConstants.initConstants. 2045 "Ljava/nio/charset/CharsetICU;", // Sub-class of Charset. 2046 "Ljava/nio/charset/Charsets;", // Calls Charset.forName. 2047 "Ljava/nio/charset/StandardCharsets;", // Calls OsConstants.initConstants. 2048 "Ljava/security/AlgorithmParameterGenerator;", // Calls OsConstants.initConstants. 2049 "Ljava/security/KeyPairGenerator$KeyPairGeneratorImpl;", // Calls OsConstants.initConstants. 2050 "Ljava/security/KeyPairGenerator;", // Calls OsConstants.initConstants. 2051 "Ljava/security/Security;", // Tries to do disk IO for "security.properties". 2052 "Ljava/security/spec/RSAKeyGenParameterSpec;", // java.math.NativeBN.BN_new() 2053 "Ljava/sql/Date;", // Calls OsConstants.initConstants. 2054 "Ljava/sql/DriverManager;", // Calls OsConstants.initConstants. 2055 "Ljava/sql/Time;", // Calls OsConstants.initConstants. 2056 "Ljava/sql/Timestamp;", // Calls OsConstants.initConstants. 2057 "Ljava/util/Date;", // Calls Date.<init> -> System.currentTimeMillis -> OsConstants.initConstants. 2058 "Ljava/util/ListResourceBundle;", // Calls OsConstants.initConstants. 2059 "Ljava/util/Locale;", // Calls System.getProperty -> OsConstants.initConstants. 2060 "Ljava/util/PropertyResourceBundle;", // Calls OsConstants.initConstants. 2061 "Ljava/util/ResourceBundle;", // Calls OsConstants.initConstants. 2062 "Ljava/util/ResourceBundle$MissingBundle;", // Calls OsConstants.initConstants. 2063 "Ljava/util/Scanner;", // regex.Pattern.compileImpl. 2064 "Ljava/util/SimpleTimeZone;", // Sub-class of TimeZone. 2065 "Ljava/util/TimeZone;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 2066 "Ljava/util/concurrent/ConcurrentHashMap;", // Calls Runtime.getRuntime().availableProcessors(). 2067 "Ljava/util/concurrent/ConcurrentHashMap$Segment;", // Calls Runtime.getRuntime().availableProcessors(). 2068 "Ljava/util/concurrent/ConcurrentSkipListMap;", // Calls Random() -> OsConstants.initConstants. 2069 "Ljava/util/concurrent/Exchanger;", // Calls Runtime.getRuntime().availableProcessors(). 2070 "Ljava/util/concurrent/ForkJoinPool;", // Makes a thread pool ..-> calls OsConstants.initConstants. 2071 "Ljava/util/concurrent/LinkedTransferQueue;", // Calls Runtime.getRuntime().availableProcessors(). 2072 "Ljava/util/concurrent/Phaser;", // Calls Runtime.getRuntime().availableProcessors(). 2073 "Ljava/util/concurrent/ScheduledThreadPoolExecutor;", // Calls AtomicLong.VMSupportsCS8() 2074 "Ljava/util/concurrent/SynchronousQueue;", // Calls Runtime.getRuntime().availableProcessors(). 2075 "Ljava/util/concurrent/atomic/AtomicLong;", // Calls AtomicLong.VMSupportsCS8() 2076 "Ljava/util/logging/LogManager;", // Calls System.getProperty -> OsConstants.initConstants. 2077 "Ljava/util/prefs/AbstractPreferences;", // Calls OsConstants.initConstants. 2078 "Ljava/util/prefs/FilePreferencesImpl;", // Calls OsConstants.initConstants. 2079 "Ljava/util/prefs/FilePreferencesFactoryImpl;", // Calls OsConstants.initConstants. 2080 "Ljava/util/prefs/Preferences;", // Calls OsConstants.initConstants. 2081 "Ljavax/crypto/KeyAgreement;", // Calls OsConstants.initConstants. 2082 "Ljavax/crypto/KeyGenerator;", // Calls OsConstants.initConstants. 2083 "Ljavax/security/cert/X509Certificate;", // Calls VMClassLoader.getBootClassPathSize. 2084 "Ljavax/security/cert/X509Certificate$1;", // Calls VMClassLoader.getBootClassPathSize. 2085 "Ljavax/microedition/khronos/egl/EGL10;", // Requires EGLContext. 2086 "Ljavax/microedition/khronos/egl/EGLContext;", // Requires com.google.android.gles_jni.EGLImpl. 2087 "Ljavax/xml/datatype/DatatypeConstants;", // Calls OsConstants.initConstants. 2088 "Ljavax/xml/datatype/FactoryFinder;", // Calls OsConstants.initConstants. 2089 "Ljavax/xml/namespace/QName;", // Calls OsConstants.initConstants. 2090 "Ljavax/xml/validation/SchemaFactoryFinder;", // Calls OsConstants.initConstants. 2091 "Ljavax/xml/xpath/XPathConstants;", // Calls OsConstants.initConstants. 2092 "Ljavax/xml/xpath/XPathFactoryFinder;", // Calls OsConstants.initConstants. 2093 "Llibcore/icu/LocaleData;", // Requires java.util.Locale. 2094 "Llibcore/icu/TimeZoneNames;", // Requires java.util.TimeZone. 2095 "Llibcore/io/IoUtils;", // Calls Random.<init> -> System.currentTimeMillis -> FileDescriptor -> OsConstants.initConstants. 2096 "Llibcore/io/OsConstants;", // Platform specific. 2097 "Llibcore/net/MimeUtils;", // Calls libcore.net.MimeUtils.getContentTypesPropertiesStream -> System.getProperty. 2098 "Llibcore/reflect/Types;", // Calls OsConstants.initConstants. 2099 "Llibcore/util/ZoneInfo;", // Sub-class of TimeZone. 2100 "Llibcore/util/ZoneInfoDB;", // Calls System.getenv -> OsConstants.initConstants. 2101 "Lorg/apache/commons/logging/LogFactory;", // Calls System.getProperty. 2102 "Lorg/apache/commons/logging/impl/LogFactoryImpl;", // Calls OsConstants.initConstants. 2103 "Lorg/apache/harmony/security/fortress/Services;", // Calls ClassLoader.getSystemClassLoader -> System.getProperty. 2104 "Lorg/apache/harmony/security/provider/cert/X509CertFactoryImpl;", // Requires java.nio.charsets.Charsets. 2105 "Lorg/apache/harmony/security/provider/crypto/RandomBitsSupplier;", // Requires java.io.File. 2106 "Lorg/apache/harmony/security/utils/AlgNameMapper;", // Requires java.util.Locale. 2107 "Lorg/apache/harmony/security/pkcs10/CertificationRequest;", // Calls Thread.currentThread. 2108 "Lorg/apache/harmony/security/pkcs10/CertificationRequestInfo;", // Calls Thread.currentThread. 2109 "Lorg/apache/harmony/security/pkcs7/AuthenticatedAttributes;", // Calls Thread.currentThread. 2110 "Lorg/apache/harmony/security/pkcs7/SignedData;", // Calls Thread.currentThread. 2111 "Lorg/apache/harmony/security/pkcs7/SignerInfo;", // Calls Thread.currentThread. 2112 "Lorg/apache/harmony/security/pkcs8/PrivateKeyInfo;", // Calls Thread.currentThread. 2113 "Lorg/apache/harmony/security/provider/crypto/SHA1PRNG_SecureRandomImpl;", // Calls OsConstants.initConstants. 2114 "Lorg/apache/harmony/security/x501/AttributeTypeAndValue;", // Calls IntegralToString.convertInt -> Thread.currentThread. 2115 "Lorg/apache/harmony/security/x501/DirectoryString;", // Requires BigInteger. 2116 "Lorg/apache/harmony/security/x501/Name;", // Requires org.apache.harmony.security.x501.AttributeTypeAndValue. 2117 "Lorg/apache/harmony/security/x509/AccessDescription;", // Calls Thread.currentThread. 2118 "Lorg/apache/harmony/security/x509/AuthorityKeyIdentifier;", // Calls Thread.currentThread. 2119 "Lorg/apache/harmony/security/x509/CRLDistributionPoints;", // Calls Thread.currentThread. 2120 "Lorg/apache/harmony/security/x509/Certificate;", // Requires org.apache.harmony.security.x509.TBSCertificate. 2121 "Lorg/apache/harmony/security/x509/CertificateIssuer;", // Calls Thread.currentThread. 2122 "Lorg/apache/harmony/security/x509/CertificateList;", // Calls Thread.currentThread. 2123 "Lorg/apache/harmony/security/x509/DistributionPoint;", // Calls Thread.currentThread. 2124 "Lorg/apache/harmony/security/x509/DistributionPointName;", // Calls Thread.currentThread. 2125 "Lorg/apache/harmony/security/x509/EDIPartyName;", // Calls native ... -> java.math.NativeBN.BN_new(). 2126 "Lorg/apache/harmony/security/x509/GeneralName;", // Requires org.apache.harmony.security.x501.Name. 2127 "Lorg/apache/harmony/security/x509/GeneralNames;", // Requires GeneralName. 2128 "Lorg/apache/harmony/security/x509/GeneralSubtree;", // Calls Thread.currentThread. 2129 "Lorg/apache/harmony/security/x509/GeneralSubtrees;", // Calls Thread.currentThread. 2130 "Lorg/apache/harmony/security/x509/InfoAccessSyntax;", // Calls Thread.currentThread. 2131 "Lorg/apache/harmony/security/x509/IssuingDistributionPoint;", // Calls Thread.currentThread. 2132 "Lorg/apache/harmony/security/x509/NameConstraints;", // Calls Thread.currentThread. 2133 "Lorg/apache/harmony/security/x509/TBSCertList$RevokedCertificate;", // Calls NativeBN.BN_new(). 2134 "Lorg/apache/harmony/security/x509/TBSCertList;", // Calls Thread.currentThread. 2135 "Lorg/apache/harmony/security/x509/TBSCertificate;", // Requires org.apache.harmony.security.x501.Name. 2136 "Lorg/apache/harmony/security/x509/Time;", // Calls native ... -> java.math.NativeBN.BN_new(). 2137 "Lorg/apache/harmony/security/x509/Validity;", // Requires x509.Time. 2138 "Lorg/apache/harmony/security/x509/tsp/TSTInfo;", // Calls Thread.currentThread. 2139 "Lorg/apache/harmony/xml/ExpatParser;", // Calls native ExpatParser.staticInitialize. 2140 "Lorg/apache/harmony/xml/ExpatParser$EntityParser;", // Calls ExpatParser.staticInitialize. 2141 "Lorg/apache/http/conn/params/ConnRouteParams;", // Requires java.util.Locale. 2142 "Lorg/apache/http/conn/ssl/SSLSocketFactory;", // Calls java.security.Security.getProperty. 2143 "Lorg/apache/http/conn/util/InetAddressUtils;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 2144}; 2145 2146static void InitializeClass(const ParallelCompilationManager* manager, size_t class_def_index) 2147 LOCKS_EXCLUDED(Locks::mutator_lock_) { 2148 ATRACE_CALL(); 2149 jobject jclass_loader = manager->GetClassLoader(); 2150 const DexFile& dex_file = *manager->GetDexFile(); 2151 const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); 2152 const DexFile::TypeId& class_type_id = dex_file.GetTypeId(class_def.class_idx_); 2153 const char* descriptor = dex_file.StringDataByIdx(class_type_id.descriptor_idx_); 2154 2155 ScopedObjectAccess soa(Thread::Current()); 2156 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), 2157 soa.Decode<mirror::ClassLoader*>(jclass_loader)); 2158 SirtRef<mirror::Class> klass(soa.Self(), 2159 manager->GetClassLinker()->FindClass(descriptor, class_loader)); 2160 2161 if (klass.get() != nullptr && !SkipClass(jclass_loader, dex_file, klass.get())) { 2162 // Only try to initialize classes that were successfully verified. 2163 if (klass->IsVerified()) { 2164 // Attempt to initialize the class but bail if we either need to initialize the super-class 2165 // or static fields. 2166 manager->GetClassLinker()->EnsureInitialized(klass, false, false); 2167 if (!klass->IsInitialized()) { 2168 // We don't want non-trivial class initialization occurring on multiple threads due to 2169 // deadlock problems. For example, a parent class is initialized (holding its lock) that 2170 // refers to a sub-class in its static/class initializer causing it to try to acquire the 2171 // sub-class' lock. While on a second thread the sub-class is initialized (holding its lock) 2172 // after first initializing its parents, whose locks are acquired. This leads to a 2173 // parent-to-child and a child-to-parent lock ordering and consequent potential deadlock. 2174 // We need to use an ObjectLock due to potential suspension in the interpreting code. Rather 2175 // than use a special Object for the purpose we use the Class of java.lang.Class. 2176 SirtRef<mirror::Class> sirt_klass(soa.Self(), klass->GetClass()); 2177 ObjectLock<mirror::Class> lock(soa.Self(), &sirt_klass); 2178 // Attempt to initialize allowing initialization of parent classes but still not static 2179 // fields. 2180 manager->GetClassLinker()->EnsureInitialized(klass, false, true); 2181 if (!klass->IsInitialized()) { 2182 // We need to initialize static fields, we only do this for image classes that aren't 2183 // black listed or marked with the $NoPreloadHolder. 2184 bool can_init_static_fields = manager->GetCompiler()->IsImage() && 2185 manager->GetCompiler()->IsImageClass(descriptor); 2186 if (can_init_static_fields) { 2187 // NoPreloadHolder inner class implies this should not be initialized early. 2188 bool is_black_listed = StringPiece(descriptor).ends_with("$NoPreloadHolder;"); 2189 if (!is_black_listed) { 2190 for (size_t i = 0; i < arraysize(class_initializer_black_list); ++i) { 2191 if (strcmp(descriptor, class_initializer_black_list[i]) == 0) { 2192 is_black_listed = true; 2193 break; 2194 } 2195 } 2196 } 2197 if (!is_black_listed) { 2198 VLOG(compiler) << "Initializing: " << descriptor; 2199 if (strcmp("Ljava/lang/Void;", descriptor) == 0) { 2200 // Hand initialize j.l.Void to avoid Dex file operations in un-started runtime. 2201 ObjectLock<mirror::Class> lock(soa.Self(), &klass); 2202 mirror::ObjectArray<mirror::ArtField>* fields = klass->GetSFields(); 2203 CHECK_EQ(fields->GetLength(), 1); 2204 fields->Get(0)->SetObj(klass.get(), 2205 manager->GetClassLinker()->FindPrimitiveClass('V')); 2206 klass->SetStatus(mirror::Class::kStatusInitialized, soa.Self()); 2207 } else { 2208 manager->GetClassLinker()->EnsureInitialized(klass, true, true); 2209 } 2210 } 2211 } 2212 } 2213 soa.Self()->AssertNoPendingException(); 2214 } 2215 } 2216 // Record the final class status if necessary. 2217 ClassReference ref(manager->GetDexFile(), class_def_index); 2218 manager->GetCompiler()->RecordClassStatus(ref, klass->GetStatus()); 2219 } 2220 // Clear any class not found or verification exceptions. 2221 soa.Self()->ClearException(); 2222} 2223 2224void CompilerDriver::InitializeClasses(jobject jni_class_loader, const DexFile& dex_file, 2225 ThreadPool& thread_pool, TimingLogger& timings) { 2226 timings.NewSplit("InitializeNoClinit"); 2227#ifndef NDEBUG 2228 // Sanity check blacklist descriptors. 2229 if (IsImage()) { 2230 for (size_t i = 0; i < arraysize(class_initializer_black_list); ++i) { 2231 const char* descriptor = class_initializer_black_list[i]; 2232 CHECK(IsValidDescriptor(descriptor)) << descriptor; 2233 } 2234 } 2235#endif 2236 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 2237 ParallelCompilationManager context(class_linker, jni_class_loader, this, &dex_file, thread_pool); 2238 context.ForAll(0, dex_file.NumClassDefs(), InitializeClass, thread_count_); 2239} 2240 2241void CompilerDriver::InitializeClasses(jobject class_loader, 2242 const std::vector<const DexFile*>& dex_files, 2243 ThreadPool& thread_pool, TimingLogger& timings) { 2244 for (size_t i = 0; i != dex_files.size(); ++i) { 2245 const DexFile* dex_file = dex_files[i]; 2246 CHECK(dex_file != NULL); 2247 InitializeClasses(class_loader, *dex_file, thread_pool, timings); 2248 } 2249} 2250 2251void CompilerDriver::Compile(jobject class_loader, const std::vector<const DexFile*>& dex_files, 2252 ThreadPool& thread_pool, TimingLogger& timings) { 2253 for (size_t i = 0; i != dex_files.size(); ++i) { 2254 const DexFile* dex_file = dex_files[i]; 2255 CHECK(dex_file != NULL); 2256 CompileDexFile(class_loader, *dex_file, thread_pool, timings); 2257 } 2258} 2259 2260void CompilerDriver::CompileClass(const ParallelCompilationManager* manager, size_t class_def_index) { 2261 ATRACE_CALL(); 2262 jobject jclass_loader = manager->GetClassLoader(); 2263 const DexFile& dex_file = *manager->GetDexFile(); 2264 const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); 2265 ClassLinker* class_linker = manager->GetClassLinker(); 2266 if (SkipClass(class_linker, jclass_loader, dex_file, class_def)) { 2267 return; 2268 } 2269 ClassReference ref(&dex_file, class_def_index); 2270 // Skip compiling classes with generic verifier failures since they will still fail at runtime 2271 if (manager->GetCompiler()->verification_results_->IsClassRejected(ref)) { 2272 return; 2273 } 2274 const byte* class_data = dex_file.GetClassData(class_def); 2275 if (class_data == NULL) { 2276 // empty class, probably a marker interface 2277 return; 2278 } 2279 2280 // Can we run DEX-to-DEX compiler on this class ? 2281 DexToDexCompilationLevel dex_to_dex_compilation_level = kDontDexToDexCompile; 2282 { 2283 ScopedObjectAccess soa(Thread::Current()); 2284 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), 2285 soa.Decode<mirror::ClassLoader*>(jclass_loader)); 2286 dex_to_dex_compilation_level = GetDexToDexCompilationlevel(class_loader, dex_file, class_def); 2287 } 2288 ClassDataItemIterator it(dex_file, class_data); 2289 // Skip fields 2290 while (it.HasNextStaticField()) { 2291 it.Next(); 2292 } 2293 while (it.HasNextInstanceField()) { 2294 it.Next(); 2295 } 2296 CompilerDriver* driver = manager->GetCompiler(); 2297 // Compile direct methods 2298 int64_t previous_direct_method_idx = -1; 2299 while (it.HasNextDirectMethod()) { 2300 uint32_t method_idx = it.GetMemberIndex(); 2301 if (method_idx == previous_direct_method_idx) { 2302 // smali can create dex files with two encoded_methods sharing the same method_idx 2303 // http://code.google.com/p/smali/issues/detail?id=119 2304 it.Next(); 2305 continue; 2306 } 2307 previous_direct_method_idx = method_idx; 2308 driver->CompileMethod(it.GetMethodCodeItem(), it.GetMemberAccessFlags(), 2309 it.GetMethodInvokeType(class_def), class_def_index, 2310 method_idx, jclass_loader, dex_file, dex_to_dex_compilation_level); 2311 it.Next(); 2312 } 2313 // Compile virtual methods 2314 int64_t previous_virtual_method_idx = -1; 2315 while (it.HasNextVirtualMethod()) { 2316 uint32_t method_idx = it.GetMemberIndex(); 2317 if (method_idx == previous_virtual_method_idx) { 2318 // smali can create dex files with two encoded_methods sharing the same method_idx 2319 // http://code.google.com/p/smali/issues/detail?id=119 2320 it.Next(); 2321 continue; 2322 } 2323 previous_virtual_method_idx = method_idx; 2324 driver->CompileMethod(it.GetMethodCodeItem(), it.GetMemberAccessFlags(), 2325 it.GetMethodInvokeType(class_def), class_def_index, 2326 method_idx, jclass_loader, dex_file, dex_to_dex_compilation_level); 2327 it.Next(); 2328 } 2329 DCHECK(!it.HasNext()); 2330} 2331 2332void CompilerDriver::CompileDexFile(jobject class_loader, const DexFile& dex_file, 2333 ThreadPool& thread_pool, TimingLogger& timings) { 2334 timings.NewSplit("Compile Dex File"); 2335 ParallelCompilationManager context(Runtime::Current()->GetClassLinker(), class_loader, this, 2336 &dex_file, thread_pool); 2337 context.ForAll(0, dex_file.NumClassDefs(), CompilerDriver::CompileClass, thread_count_); 2338} 2339 2340void CompilerDriver::CompileMethod(const DexFile::CodeItem* code_item, uint32_t access_flags, 2341 InvokeType invoke_type, uint16_t class_def_idx, 2342 uint32_t method_idx, jobject class_loader, 2343 const DexFile& dex_file, 2344 DexToDexCompilationLevel dex_to_dex_compilation_level) { 2345 CompiledMethod* compiled_method = NULL; 2346 uint64_t start_ns = NanoTime(); 2347 2348 if ((access_flags & kAccNative) != 0) { 2349 compiled_method = (*jni_compiler_)(*this, access_flags, method_idx, dex_file); 2350 CHECK(compiled_method != NULL); 2351 } else if ((access_flags & kAccAbstract) != 0) { 2352 } else { 2353 MethodReference method_ref(&dex_file, method_idx); 2354 bool compile = VerificationResults::IsCandidateForCompilation(method_ref, access_flags); 2355 2356 if (compile) { 2357 CompilerFn compiler = compiler_; 2358#ifdef ART_SEA_IR_MODE 2359 bool use_sea = Runtime::Current()->IsSeaIRMode(); 2360 use_sea = use_sea && 2361 (std::string::npos != PrettyMethod(method_idx, dex_file).find("fibonacci")); 2362 if (use_sea) { 2363 compiler = sea_ir_compiler_; 2364 LOG(INFO) << "Using SEA IR to compile..." << std::endl; 2365 } 2366#endif 2367 // NOTE: if compiler declines to compile this method, it will return NULL. 2368 compiled_method = (*compiler)(*this, code_item, access_flags, invoke_type, class_def_idx, 2369 method_idx, class_loader, dex_file); 2370 } else if (dex_to_dex_compilation_level != kDontDexToDexCompile) { 2371 // TODO: add a mode to disable DEX-to-DEX compilation ? 2372 (*dex_to_dex_compiler_)(*this, code_item, access_flags, 2373 invoke_type, class_def_idx, 2374 method_idx, class_loader, dex_file, 2375 dex_to_dex_compilation_level); 2376 } 2377 } 2378 uint64_t duration_ns = NanoTime() - start_ns; 2379#ifdef ART_USE_PORTABLE_COMPILER 2380 const uint64_t kWarnMilliSeconds = 1000; 2381#else 2382 const uint64_t kWarnMilliSeconds = 100; 2383#endif 2384 if (duration_ns > MsToNs(kWarnMilliSeconds)) { 2385 LOG(WARNING) << "Compilation of " << PrettyMethod(method_idx, dex_file) 2386 << " took " << PrettyDuration(duration_ns); 2387 } 2388 2389 Thread* self = Thread::Current(); 2390 if (compiled_method != NULL) { 2391 MethodReference ref(&dex_file, method_idx); 2392 DCHECK(GetCompiledMethod(ref) == NULL) << PrettyMethod(method_idx, dex_file); 2393 { 2394 MutexLock mu(self, compiled_methods_lock_); 2395 compiled_methods_.Put(ref, compiled_method); 2396 } 2397 DCHECK(GetCompiledMethod(ref) != NULL) << PrettyMethod(method_idx, dex_file); 2398 } 2399 2400 if (self->IsExceptionPending()) { 2401 ScopedObjectAccess soa(self); 2402 LOG(FATAL) << "Unexpected exception compiling: " << PrettyMethod(method_idx, dex_file) << "\n" 2403 << self->GetException(NULL)->Dump(); 2404 } 2405} 2406 2407CompiledClass* CompilerDriver::GetCompiledClass(ClassReference ref) const { 2408 MutexLock mu(Thread::Current(), compiled_classes_lock_); 2409 ClassTable::const_iterator it = compiled_classes_.find(ref); 2410 if (it == compiled_classes_.end()) { 2411 return NULL; 2412 } 2413 CHECK(it->second != NULL); 2414 return it->second; 2415} 2416 2417void CompilerDriver::RecordClassStatus(ClassReference ref, mirror::Class::Status status) { 2418 MutexLock mu(Thread::Current(), compiled_classes_lock_); 2419 auto it = compiled_classes_.find(ref); 2420 if (it == compiled_classes_.end() || it->second->GetStatus() != status) { 2421 // An entry doesn't exist or the status is lower than the new status. 2422 if (it != compiled_classes_.end()) { 2423 CHECK_GT(status, it->second->GetStatus()); 2424 delete it->second; 2425 } 2426 switch (status) { 2427 case mirror::Class::kStatusNotReady: 2428 case mirror::Class::kStatusError: 2429 case mirror::Class::kStatusRetryVerificationAtRuntime: 2430 case mirror::Class::kStatusVerified: 2431 case mirror::Class::kStatusInitialized: 2432 break; // Expected states. 2433 default: 2434 LOG(FATAL) << "Unexpected class status for class " 2435 << PrettyDescriptor(ref.first->GetClassDescriptor(ref.first->GetClassDef(ref.second))) 2436 << " of " << status; 2437 } 2438 CompiledClass* compiled_class = new CompiledClass(status); 2439 compiled_classes_.Overwrite(ref, compiled_class); 2440 } 2441} 2442 2443CompiledMethod* CompilerDriver::GetCompiledMethod(MethodReference ref) const { 2444 MutexLock mu(Thread::Current(), compiled_methods_lock_); 2445 MethodTable::const_iterator it = compiled_methods_.find(ref); 2446 if (it == compiled_methods_.end()) { 2447 return NULL; 2448 } 2449 CHECK(it->second != NULL); 2450 return it->second; 2451} 2452 2453void CompilerDriver::SetBitcodeFileName(std::string const& filename) { 2454 typedef void (*SetBitcodeFileNameFn)(CompilerDriver&, std::string const&); 2455 2456 SetBitcodeFileNameFn set_bitcode_file_name = 2457 reinterpret_cast<SetBitcodeFileNameFn>(compilerLLVMSetBitcodeFileName); 2458 2459 set_bitcode_file_name(*this, filename); 2460} 2461 2462 2463void CompilerDriver::AddRequiresConstructorBarrier(Thread* self, const DexFile* dex_file, 2464 uint16_t class_def_index) { 2465 WriterMutexLock mu(self, freezing_constructor_lock_); 2466 freezing_constructor_classes_.insert(ClassReference(dex_file, class_def_index)); 2467} 2468 2469bool CompilerDriver::RequiresConstructorBarrier(Thread* self, const DexFile* dex_file, 2470 uint16_t class_def_index) { 2471 ReaderMutexLock mu(self, freezing_constructor_lock_); 2472 return freezing_constructor_classes_.count(ClassReference(dex_file, class_def_index)) != 0; 2473} 2474 2475bool CompilerDriver::WriteElf(const std::string& android_root, 2476 bool is_host, 2477 const std::vector<const art::DexFile*>& dex_files, 2478 OatWriter& oat_writer, 2479 art::File* file) 2480 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 2481#if defined(ART_USE_PORTABLE_COMPILER) 2482 return art::ElfWriterMclinker::Create(file, oat_writer, dex_files, android_root, is_host, *this); 2483#else 2484 return art::ElfWriterQuick::Create(file, oat_writer, dex_files, android_root, is_host, *this); 2485#endif 2486} 2487void CompilerDriver::InstructionSetToLLVMTarget(InstructionSet instruction_set, 2488 std::string& target_triple, 2489 std::string& target_cpu, 2490 std::string& target_attr) { 2491 switch (instruction_set) { 2492 case kThumb2: 2493 target_triple = "thumb-none-linux-gnueabi"; 2494 target_cpu = "cortex-a9"; 2495 target_attr = "+thumb2,+neon,+neonfp,+vfp3,+db"; 2496 break; 2497 2498 case kArm: 2499 target_triple = "armv7-none-linux-gnueabi"; 2500 // TODO: Fix for Nexus S. 2501 target_cpu = "cortex-a9"; 2502 // TODO: Fix for Xoom. 2503 target_attr = "+v7,+neon,+neonfp,+vfp3,+db"; 2504 break; 2505 2506 case kX86: 2507 target_triple = "i386-pc-linux-gnu"; 2508 target_attr = ""; 2509 break; 2510 2511 case kMips: 2512 target_triple = "mipsel-unknown-linux"; 2513 target_attr = "mips32r2"; 2514 break; 2515 2516 default: 2517 LOG(FATAL) << "Unknown instruction set: " << instruction_set; 2518 } 2519 } 2520} // namespace art 2521