compiler_driver.cc revision ea3fa0b4ba13d7bd7f7c1cd85202ccbe141a35ae
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 "dex/verified_method.h" 32#include "jni_internal.h" 33#include "object_utils.h" 34#include "runtime.h" 35#include "gc/accounting/card_table-inl.h" 36#include "gc/accounting/heap_bitmap.h" 37#include "gc/space/space.h" 38#include "mirror/art_field-inl.h" 39#include "mirror/art_method-inl.h" 40#include "mirror/class_loader.h" 41#include "mirror/class-inl.h" 42#include "mirror/dex_cache-inl.h" 43#include "mirror/object-inl.h" 44#include "mirror/object_array-inl.h" 45#include "mirror/throwable.h" 46#include "scoped_thread_state_change.h" 47#include "ScopedLocalRef.h" 48#include "thread.h" 49#include "thread_pool.h" 50#include "trampolines/trampoline_compiler.h" 51#include "verifier/method_verifier.h" 52 53#if defined(ART_USE_PORTABLE_COMPILER) 54#include "elf_writer_mclinker.h" 55#else 56#include "elf_writer_quick.h" 57#endif 58 59namespace art { 60 61static double Percentage(size_t x, size_t y) { 62 return 100.0 * (static_cast<double>(x)) / (static_cast<double>(x + y)); 63} 64 65static void DumpStat(size_t x, size_t y, const char* str) { 66 if (x == 0 && y == 0) { 67 return; 68 } 69 LOG(INFO) << Percentage(x, y) << "% of " << str << " for " << (x + y) << " cases"; 70} 71 72class AOTCompilationStats { 73 public: 74 AOTCompilationStats() 75 : stats_lock_("AOT compilation statistics lock"), 76 types_in_dex_cache_(0), types_not_in_dex_cache_(0), 77 strings_in_dex_cache_(0), strings_not_in_dex_cache_(0), 78 resolved_types_(0), unresolved_types_(0), 79 resolved_instance_fields_(0), unresolved_instance_fields_(0), 80 resolved_local_static_fields_(0), resolved_static_fields_(0), unresolved_static_fields_(0), 81 type_based_devirtualization_(0), 82 safe_casts_(0), not_safe_casts_(0) { 83 for (size_t i = 0; i <= kMaxInvokeType; i++) { 84 resolved_methods_[i] = 0; 85 unresolved_methods_[i] = 0; 86 virtual_made_direct_[i] = 0; 87 direct_calls_to_boot_[i] = 0; 88 direct_methods_to_boot_[i] = 0; 89 } 90 } 91 92 void Dump() { 93 DumpStat(types_in_dex_cache_, types_not_in_dex_cache_, "types known to be in dex cache"); 94 DumpStat(strings_in_dex_cache_, strings_not_in_dex_cache_, "strings known to be in dex cache"); 95 DumpStat(resolved_types_, unresolved_types_, "types resolved"); 96 DumpStat(resolved_instance_fields_, unresolved_instance_fields_, "instance fields resolved"); 97 DumpStat(resolved_local_static_fields_ + resolved_static_fields_, unresolved_static_fields_, 98 "static fields resolved"); 99 DumpStat(resolved_local_static_fields_, resolved_static_fields_ + unresolved_static_fields_, 100 "static fields local to a class"); 101 DumpStat(safe_casts_, not_safe_casts_, "check-casts removed based on type information"); 102 // Note, the code below subtracts the stat value so that when added to the stat value we have 103 // 100% of samples. TODO: clean this up. 104 DumpStat(type_based_devirtualization_, 105 resolved_methods_[kVirtual] + unresolved_methods_[kVirtual] + 106 resolved_methods_[kInterface] + unresolved_methods_[kInterface] - 107 type_based_devirtualization_, 108 "virtual/interface calls made direct based on type information"); 109 110 for (size_t i = 0; i <= kMaxInvokeType; i++) { 111 std::ostringstream oss; 112 oss << static_cast<InvokeType>(i) << " methods were AOT resolved"; 113 DumpStat(resolved_methods_[i], unresolved_methods_[i], oss.str().c_str()); 114 if (virtual_made_direct_[i] > 0) { 115 std::ostringstream oss2; 116 oss2 << static_cast<InvokeType>(i) << " methods made direct"; 117 DumpStat(virtual_made_direct_[i], 118 resolved_methods_[i] + unresolved_methods_[i] - virtual_made_direct_[i], 119 oss2.str().c_str()); 120 } 121 if (direct_calls_to_boot_[i] > 0) { 122 std::ostringstream oss2; 123 oss2 << static_cast<InvokeType>(i) << " method calls are direct into boot"; 124 DumpStat(direct_calls_to_boot_[i], 125 resolved_methods_[i] + unresolved_methods_[i] - direct_calls_to_boot_[i], 126 oss2.str().c_str()); 127 } 128 if (direct_methods_to_boot_[i] > 0) { 129 std::ostringstream oss2; 130 oss2 << static_cast<InvokeType>(i) << " method calls have methods in boot"; 131 DumpStat(direct_methods_to_boot_[i], 132 resolved_methods_[i] + unresolved_methods_[i] - direct_methods_to_boot_[i], 133 oss2.str().c_str()); 134 } 135 } 136 } 137 138// Allow lossy statistics in non-debug builds. 139#ifndef NDEBUG 140#define STATS_LOCK() MutexLock mu(Thread::Current(), stats_lock_) 141#else 142#define STATS_LOCK() 143#endif 144 145 void TypeInDexCache() { 146 STATS_LOCK(); 147 types_in_dex_cache_++; 148 } 149 150 void TypeNotInDexCache() { 151 STATS_LOCK(); 152 types_not_in_dex_cache_++; 153 } 154 155 void StringInDexCache() { 156 STATS_LOCK(); 157 strings_in_dex_cache_++; 158 } 159 160 void StringNotInDexCache() { 161 STATS_LOCK(); 162 strings_not_in_dex_cache_++; 163 } 164 165 void TypeDoesntNeedAccessCheck() { 166 STATS_LOCK(); 167 resolved_types_++; 168 } 169 170 void TypeNeedsAccessCheck() { 171 STATS_LOCK(); 172 unresolved_types_++; 173 } 174 175 void ResolvedInstanceField() { 176 STATS_LOCK(); 177 resolved_instance_fields_++; 178 } 179 180 void UnresolvedInstanceField() { 181 STATS_LOCK(); 182 unresolved_instance_fields_++; 183 } 184 185 void ResolvedLocalStaticField() { 186 STATS_LOCK(); 187 resolved_local_static_fields_++; 188 } 189 190 void ResolvedStaticField() { 191 STATS_LOCK(); 192 resolved_static_fields_++; 193 } 194 195 void UnresolvedStaticField() { 196 STATS_LOCK(); 197 unresolved_static_fields_++; 198 } 199 200 // Indicate that type information from the verifier led to devirtualization. 201 void PreciseTypeDevirtualization() { 202 STATS_LOCK(); 203 type_based_devirtualization_++; 204 } 205 206 // Indicate that a method of the given type was resolved at compile time. 207 void ResolvedMethod(InvokeType type) { 208 DCHECK_LE(type, kMaxInvokeType); 209 STATS_LOCK(); 210 resolved_methods_[type]++; 211 } 212 213 // Indicate that a method of the given type was unresolved at compile time as it was in an 214 // unknown dex file. 215 void UnresolvedMethod(InvokeType type) { 216 DCHECK_LE(type, kMaxInvokeType); 217 STATS_LOCK(); 218 unresolved_methods_[type]++; 219 } 220 221 // Indicate that a type of virtual method dispatch has been converted into a direct method 222 // dispatch. 223 void VirtualMadeDirect(InvokeType type) { 224 DCHECK(type == kVirtual || type == kInterface || type == kSuper); 225 STATS_LOCK(); 226 virtual_made_direct_[type]++; 227 } 228 229 // Indicate that a method of the given type was able to call directly into boot. 230 void DirectCallsToBoot(InvokeType type) { 231 DCHECK_LE(type, kMaxInvokeType); 232 STATS_LOCK(); 233 direct_calls_to_boot_[type]++; 234 } 235 236 // Indicate that a method of the given type was able to be resolved directly from boot. 237 void DirectMethodsToBoot(InvokeType type) { 238 DCHECK_LE(type, kMaxInvokeType); 239 STATS_LOCK(); 240 direct_methods_to_boot_[type]++; 241 } 242 243 // A check-cast could be eliminated due to verifier type analysis. 244 void SafeCast() { 245 STATS_LOCK(); 246 safe_casts_++; 247 } 248 249 // A check-cast couldn't be eliminated due to verifier type analysis. 250 void NotASafeCast() { 251 STATS_LOCK(); 252 not_safe_casts_++; 253 } 254 255 private: 256 Mutex stats_lock_; 257 258 size_t types_in_dex_cache_; 259 size_t types_not_in_dex_cache_; 260 261 size_t strings_in_dex_cache_; 262 size_t strings_not_in_dex_cache_; 263 264 size_t resolved_types_; 265 size_t unresolved_types_; 266 267 size_t resolved_instance_fields_; 268 size_t unresolved_instance_fields_; 269 270 size_t resolved_local_static_fields_; 271 size_t resolved_static_fields_; 272 size_t unresolved_static_fields_; 273 // Type based devirtualization for invoke interface and virtual. 274 size_t type_based_devirtualization_; 275 276 size_t resolved_methods_[kMaxInvokeType + 1]; 277 size_t unresolved_methods_[kMaxInvokeType + 1]; 278 size_t virtual_made_direct_[kMaxInvokeType + 1]; 279 size_t direct_calls_to_boot_[kMaxInvokeType + 1]; 280 size_t direct_methods_to_boot_[kMaxInvokeType + 1]; 281 282 size_t safe_casts_; 283 size_t not_safe_casts_; 284 285 DISALLOW_COPY_AND_ASSIGN(AOTCompilationStats); 286}; 287 288extern "C" void ArtInitCompilerContext(art::CompilerDriver& driver); 289extern "C" void ArtInitQuickCompilerContext(art::CompilerDriver& driver); 290 291extern "C" void ArtUnInitCompilerContext(art::CompilerDriver& driver); 292extern "C" void ArtUnInitQuickCompilerContext(art::CompilerDriver& driver); 293 294extern "C" art::CompiledMethod* ArtCompileMethod(art::CompilerDriver& driver, 295 const art::DexFile::CodeItem* code_item, 296 uint32_t access_flags, 297 art::InvokeType invoke_type, 298 uint16_t class_def_idx, 299 uint32_t method_idx, 300 jobject class_loader, 301 const art::DexFile& dex_file); 302extern "C" art::CompiledMethod* ArtQuickCompileMethod(art::CompilerDriver& compiler, 303 const art::DexFile::CodeItem* code_item, 304 uint32_t access_flags, 305 art::InvokeType invoke_type, 306 uint16_t class_def_idx, 307 uint32_t method_idx, 308 jobject class_loader, 309 const art::DexFile& dex_file); 310 311extern "C" art::CompiledMethod* ArtCompileDEX(art::CompilerDriver& compiler, 312 const art::DexFile::CodeItem* code_item, 313 uint32_t access_flags, 314 art::InvokeType invoke_type, 315 uint16_t class_def_idx, 316 uint32_t method_idx, 317 jobject class_loader, 318 const art::DexFile& dex_file); 319#ifdef ART_SEA_IR_MODE 320extern "C" art::CompiledMethod* SeaIrCompileMethod(art::CompilerDriver& compiler, 321 const art::DexFile::CodeItem* code_item, 322 uint32_t access_flags, 323 art::InvokeType invoke_type, 324 uint16_t class_def_idx, 325 uint32_t method_idx, 326 jobject class_loader, 327 const art::DexFile& dex_file); 328#endif 329extern "C" art::CompiledMethod* ArtLLVMJniCompileMethod(art::CompilerDriver& driver, 330 uint32_t access_flags, uint32_t method_idx, 331 const art::DexFile& dex_file); 332 333extern "C" art::CompiledMethod* ArtQuickJniCompileMethod(art::CompilerDriver& compiler, 334 uint32_t access_flags, uint32_t method_idx, 335 const art::DexFile& dex_file); 336 337extern "C" void compilerLLVMSetBitcodeFileName(art::CompilerDriver& driver, 338 std::string const& filename); 339 340CompilerDriver::CompilerDriver(VerificationResults* verification_results, 341 DexFileToMethodInlinerMap* method_inliner_map, 342 CompilerBackend compiler_backend, InstructionSet instruction_set, 343 InstructionSetFeatures instruction_set_features, 344 bool image, DescriptorSet* image_classes, size_t thread_count, 345 bool dump_stats, bool dump_passes, CumulativeLogger* timer) 346 : verification_results_(verification_results), 347 method_inliner_map_(method_inliner_map), 348 compiler_backend_(compiler_backend), 349 instruction_set_(instruction_set), 350 instruction_set_features_(instruction_set_features), 351 freezing_constructor_lock_("freezing constructor lock"), 352 compiled_classes_lock_("compiled classes lock"), 353 compiled_methods_lock_("compiled method lock"), 354 image_(image), 355 image_classes_(image_classes), 356 thread_count_(thread_count), 357 start_ns_(0), 358 stats_(new AOTCompilationStats), 359 dump_stats_(dump_stats), 360 dump_passes_(dump_passes), 361 timings_logger_(timer), 362 compiler_library_(NULL), 363 compiler_(NULL), 364 compiler_context_(NULL), 365 jni_compiler_(NULL), 366 compiler_enable_auto_elf_loading_(NULL), 367 compiler_get_method_code_addr_(NULL), 368 support_boot_image_fixup_(instruction_set == kThumb2), 369 dedupe_code_("dedupe code"), 370 dedupe_mapping_table_("dedupe mapping table"), 371 dedupe_vmap_table_("dedupe vmap table"), 372 dedupe_gc_map_("dedupe gc map") { 373 374 CHECK_PTHREAD_CALL(pthread_key_create, (&tls_key_, NULL), "compiler tls key"); 375 376 // TODO: more work needed to combine initializations and allow per-method backend selection 377 typedef void (*InitCompilerContextFn)(CompilerDriver&); 378 InitCompilerContextFn init_compiler_context; 379 if (compiler_backend_ == kPortable) { 380 // Initialize compiler_context_ 381 init_compiler_context = reinterpret_cast<void (*)(CompilerDriver&)>(ArtInitCompilerContext); 382 compiler_ = reinterpret_cast<CompilerFn>(ArtCompileMethod); 383 } else { 384 init_compiler_context = reinterpret_cast<void (*)(CompilerDriver&)>(ArtInitQuickCompilerContext); 385 compiler_ = reinterpret_cast<CompilerFn>(ArtQuickCompileMethod); 386 } 387 388 dex_to_dex_compiler_ = reinterpret_cast<DexToDexCompilerFn>(ArtCompileDEX); 389 390#ifdef ART_SEA_IR_MODE 391 sea_ir_compiler_ = NULL; 392 if (Runtime::Current()->IsSeaIRMode()) { 393 sea_ir_compiler_ = reinterpret_cast<CompilerFn>(SeaIrCompileMethod); 394 } 395#endif 396 397 init_compiler_context(*this); 398 399 if (compiler_backend_ == kPortable) { 400 jni_compiler_ = reinterpret_cast<JniCompilerFn>(ArtLLVMJniCompileMethod); 401 } else { 402 jni_compiler_ = reinterpret_cast<JniCompilerFn>(ArtQuickJniCompileMethod); 403 } 404 405 CHECK(!Runtime::Current()->IsStarted()); 406 if (!image_) { 407 CHECK(image_classes_.get() == NULL); 408 } 409} 410 411std::vector<uint8_t>* CompilerDriver::DeduplicateCode(const std::vector<uint8_t>& code) { 412 return dedupe_code_.Add(Thread::Current(), code); 413} 414 415std::vector<uint8_t>* CompilerDriver::DeduplicateMappingTable(const std::vector<uint8_t>& code) { 416 return dedupe_mapping_table_.Add(Thread::Current(), code); 417} 418 419std::vector<uint8_t>* CompilerDriver::DeduplicateVMapTable(const std::vector<uint8_t>& code) { 420 return dedupe_vmap_table_.Add(Thread::Current(), code); 421} 422 423std::vector<uint8_t>* CompilerDriver::DeduplicateGCMap(const std::vector<uint8_t>& code) { 424 return dedupe_gc_map_.Add(Thread::Current(), code); 425} 426 427CompilerDriver::~CompilerDriver() { 428 Thread* self = Thread::Current(); 429 { 430 MutexLock mu(self, compiled_classes_lock_); 431 STLDeleteValues(&compiled_classes_); 432 } 433 { 434 MutexLock mu(self, compiled_methods_lock_); 435 STLDeleteValues(&compiled_methods_); 436 } 437 { 438 MutexLock mu(self, compiled_methods_lock_); 439 STLDeleteElements(&code_to_patch_); 440 } 441 { 442 MutexLock mu(self, compiled_methods_lock_); 443 STLDeleteElements(&methods_to_patch_); 444 } 445 { 446 MutexLock mu(self, compiled_methods_lock_); 447 STLDeleteElements(&classes_to_patch_); 448 } 449 CHECK_PTHREAD_CALL(pthread_key_delete, (tls_key_), "delete tls key"); 450 typedef void (*UninitCompilerContextFn)(CompilerDriver&); 451 UninitCompilerContextFn uninit_compiler_context; 452 // Uninitialize compiler_context_ 453 // TODO: rework to combine initialization/uninitialization 454 if (compiler_backend_ == kPortable) { 455 uninit_compiler_context = reinterpret_cast<void (*)(CompilerDriver&)>(ArtUnInitCompilerContext); 456 } else { 457 uninit_compiler_context = reinterpret_cast<void (*)(CompilerDriver&)>(ArtUnInitQuickCompilerContext); 458 } 459 uninit_compiler_context(*this); 460} 461 462CompilerTls* CompilerDriver::GetTls() { 463 // Lazily create thread-local storage 464 CompilerTls* res = static_cast<CompilerTls*>(pthread_getspecific(tls_key_)); 465 if (res == NULL) { 466 res = new CompilerTls(); 467 CHECK_PTHREAD_CALL(pthread_setspecific, (tls_key_, res), "compiler tls"); 468 } 469 return res; 470} 471 472const std::vector<uint8_t>* CompilerDriver::CreateInterpreterToInterpreterBridge() const { 473 return CreateTrampoline(instruction_set_, kInterpreterAbi, 474 INTERPRETER_ENTRYPOINT_OFFSET(pInterpreterToInterpreterBridge)); 475} 476 477const std::vector<uint8_t>* CompilerDriver::CreateInterpreterToCompiledCodeBridge() const { 478 return CreateTrampoline(instruction_set_, kInterpreterAbi, 479 INTERPRETER_ENTRYPOINT_OFFSET(pInterpreterToCompiledCodeBridge)); 480} 481 482const std::vector<uint8_t>* CompilerDriver::CreateJniDlsymLookup() const { 483 return CreateTrampoline(instruction_set_, kJniAbi, JNI_ENTRYPOINT_OFFSET(pDlsymLookup)); 484} 485 486const std::vector<uint8_t>* CompilerDriver::CreatePortableImtConflictTrampoline() const { 487 return CreateTrampoline(instruction_set_, kPortableAbi, 488 PORTABLE_ENTRYPOINT_OFFSET(pPortableImtConflictTrampoline)); 489} 490 491const std::vector<uint8_t>* CompilerDriver::CreatePortableResolutionTrampoline() const { 492 return CreateTrampoline(instruction_set_, kPortableAbi, 493 PORTABLE_ENTRYPOINT_OFFSET(pPortableResolutionTrampoline)); 494} 495 496const std::vector<uint8_t>* CompilerDriver::CreatePortableToInterpreterBridge() const { 497 return CreateTrampoline(instruction_set_, kPortableAbi, 498 PORTABLE_ENTRYPOINT_OFFSET(pPortableToInterpreterBridge)); 499} 500 501const std::vector<uint8_t>* CompilerDriver::CreateQuickImtConflictTrampoline() const { 502 return CreateTrampoline(instruction_set_, kQuickAbi, 503 QUICK_ENTRYPOINT_OFFSET(pQuickImtConflictTrampoline)); 504} 505 506const std::vector<uint8_t>* CompilerDriver::CreateQuickResolutionTrampoline() const { 507 return CreateTrampoline(instruction_set_, kQuickAbi, 508 QUICK_ENTRYPOINT_OFFSET(pQuickResolutionTrampoline)); 509} 510 511const std::vector<uint8_t>* CompilerDriver::CreateQuickToInterpreterBridge() const { 512 return CreateTrampoline(instruction_set_, kQuickAbi, 513 QUICK_ENTRYPOINT_OFFSET(pQuickToInterpreterBridge)); 514} 515 516void CompilerDriver::CompileAll(jobject class_loader, 517 const std::vector<const DexFile*>& dex_files, 518 TimingLogger& timings) { 519 DCHECK(!Runtime::Current()->IsStarted()); 520 UniquePtr<ThreadPool> thread_pool(new ThreadPool("Compiler driver thread pool", thread_count_ - 1)); 521 PreCompile(class_loader, dex_files, *thread_pool.get(), timings); 522 Compile(class_loader, dex_files, *thread_pool.get(), timings); 523 if (dump_stats_) { 524 stats_->Dump(); 525 } 526} 527 528static DexToDexCompilationLevel GetDexToDexCompilationlevel( 529 SirtRef<mirror::ClassLoader>& class_loader, const DexFile& dex_file, 530 const DexFile::ClassDef& class_def) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 531 const char* descriptor = dex_file.GetClassDescriptor(class_def); 532 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 533 mirror::Class* klass = class_linker->FindClass(descriptor, class_loader); 534 if (klass == NULL) { 535 Thread* self = Thread::Current(); 536 CHECK(self->IsExceptionPending()); 537 self->ClearException(); 538 return kDontDexToDexCompile; 539 } 540 // The verifier can only run on "quick" instructions at runtime (see usage of 541 // FindAccessedFieldAtDexPc and FindInvokedMethodAtDexPc in ThrowNullPointerExceptionFromDexPC 542 // function). Since image classes can be verified again while compiling an application, 543 // we must prevent the DEX-to-DEX compiler from introducing them. 544 // TODO: find a way to enable "quick" instructions for image classes and remove this check. 545 bool compiling_image_classes = class_loader.get() == nullptr; 546 if (compiling_image_classes) { 547 return kRequired; 548 } else if (klass->IsVerified()) { 549 // Class is verified so we can enable DEX-to-DEX compilation for performance. 550 return kOptimize; 551 } else if (klass->IsCompileTimeVerified()) { 552 // Class verification has soft-failed. Anyway, ensure at least correctness. 553 DCHECK_EQ(klass->GetStatus(), mirror::Class::kStatusRetryVerificationAtRuntime); 554 return kRequired; 555 } else { 556 // Class verification has failed: do not run DEX-to-DEX compilation. 557 return kDontDexToDexCompile; 558 } 559} 560 561void CompilerDriver::CompileOne(mirror::ArtMethod* method, TimingLogger& timings) { 562 DCHECK(!Runtime::Current()->IsStarted()); 563 Thread* self = Thread::Current(); 564 jobject jclass_loader; 565 const DexFile* dex_file; 566 uint16_t class_def_idx; 567 uint32_t method_idx = method->GetDexMethodIndex(); 568 uint32_t access_flags = method->GetAccessFlags(); 569 InvokeType invoke_type = method->GetInvokeType(); 570 { 571 ScopedObjectAccessUnchecked soa(self); 572 ScopedLocalRef<jobject> 573 local_class_loader(soa.Env(), 574 soa.AddLocalReference<jobject>(method->GetDeclaringClass()->GetClassLoader())); 575 jclass_loader = soa.Env()->NewGlobalRef(local_class_loader.get()); 576 // Find the dex_file 577 MethodHelper mh(method); 578 dex_file = &mh.GetDexFile(); 579 class_def_idx = mh.GetClassDefIndex(); 580 } 581 const DexFile::CodeItem* code_item = dex_file->GetCodeItem(method->GetCodeItemOffset()); 582 self->TransitionFromRunnableToSuspended(kNative); 583 584 std::vector<const DexFile*> dex_files; 585 dex_files.push_back(dex_file); 586 587 UniquePtr<ThreadPool> thread_pool(new ThreadPool("Compiler driver thread pool", 0U)); 588 PreCompile(jclass_loader, dex_files, *thread_pool.get(), timings); 589 590 // Can we run DEX-to-DEX compiler on this class ? 591 DexToDexCompilationLevel dex_to_dex_compilation_level = kDontDexToDexCompile; 592 { 593 ScopedObjectAccess soa(Thread::Current()); 594 const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_idx); 595 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), 596 soa.Decode<mirror::ClassLoader*>(jclass_loader)); 597 dex_to_dex_compilation_level = GetDexToDexCompilationlevel(class_loader, *dex_file, class_def); 598 } 599 CompileMethod(code_item, access_flags, invoke_type, class_def_idx, method_idx, jclass_loader, 600 *dex_file, dex_to_dex_compilation_level); 601 602 self->GetJniEnv()->DeleteGlobalRef(jclass_loader); 603 604 self->TransitionFromSuspendedToRunnable(); 605} 606 607void CompilerDriver::Resolve(jobject class_loader, const std::vector<const DexFile*>& dex_files, 608 ThreadPool& thread_pool, TimingLogger& timings) { 609 for (size_t i = 0; i != dex_files.size(); ++i) { 610 const DexFile* dex_file = dex_files[i]; 611 CHECK(dex_file != NULL); 612 ResolveDexFile(class_loader, *dex_file, thread_pool, timings); 613 } 614} 615 616void CompilerDriver::PreCompile(jobject class_loader, const std::vector<const DexFile*>& dex_files, 617 ThreadPool& thread_pool, TimingLogger& timings) { 618 LoadImageClasses(timings); 619 620 Resolve(class_loader, dex_files, thread_pool, timings); 621 622 Verify(class_loader, dex_files, thread_pool, timings); 623 624 InitializeClasses(class_loader, dex_files, thread_pool, timings); 625 626 UpdateImageClasses(timings); 627} 628 629bool CompilerDriver::IsImageClass(const char* descriptor) const { 630 if (!IsImage()) { 631 return true; 632 } else { 633 return image_classes_->find(descriptor) != image_classes_->end(); 634 } 635} 636 637static void ResolveExceptionsForMethod(MethodHelper* mh, 638 std::set<std::pair<uint16_t, const DexFile*> >& exceptions_to_resolve) 639 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 640 const DexFile::CodeItem* code_item = mh->GetCodeItem(); 641 if (code_item == NULL) { 642 return; // native or abstract method 643 } 644 if (code_item->tries_size_ == 0) { 645 return; // nothing to process 646 } 647 const byte* encoded_catch_handler_list = DexFile::GetCatchHandlerData(*code_item, 0); 648 size_t num_encoded_catch_handlers = DecodeUnsignedLeb128(&encoded_catch_handler_list); 649 for (size_t i = 0; i < num_encoded_catch_handlers; i++) { 650 int32_t encoded_catch_handler_size = DecodeSignedLeb128(&encoded_catch_handler_list); 651 bool has_catch_all = false; 652 if (encoded_catch_handler_size <= 0) { 653 encoded_catch_handler_size = -encoded_catch_handler_size; 654 has_catch_all = true; 655 } 656 for (int32_t j = 0; j < encoded_catch_handler_size; j++) { 657 uint16_t encoded_catch_handler_handlers_type_idx = 658 DecodeUnsignedLeb128(&encoded_catch_handler_list); 659 // Add to set of types to resolve if not already in the dex cache resolved types 660 if (!mh->IsResolvedTypeIdx(encoded_catch_handler_handlers_type_idx)) { 661 exceptions_to_resolve.insert( 662 std::pair<uint16_t, const DexFile*>(encoded_catch_handler_handlers_type_idx, 663 &mh->GetDexFile())); 664 } 665 // ignore address associated with catch handler 666 DecodeUnsignedLeb128(&encoded_catch_handler_list); 667 } 668 if (has_catch_all) { 669 // ignore catch all address 670 DecodeUnsignedLeb128(&encoded_catch_handler_list); 671 } 672 } 673} 674 675static bool ResolveCatchBlockExceptionsClassVisitor(mirror::Class* c, void* arg) 676 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 677 std::set<std::pair<uint16_t, const DexFile*> >* exceptions_to_resolve = 678 reinterpret_cast<std::set<std::pair<uint16_t, const DexFile*> >*>(arg); 679 MethodHelper mh; 680 for (size_t i = 0; i < c->NumVirtualMethods(); ++i) { 681 mirror::ArtMethod* m = c->GetVirtualMethod(i); 682 mh.ChangeMethod(m); 683 ResolveExceptionsForMethod(&mh, *exceptions_to_resolve); 684 } 685 for (size_t i = 0; i < c->NumDirectMethods(); ++i) { 686 mirror::ArtMethod* m = c->GetDirectMethod(i); 687 mh.ChangeMethod(m); 688 ResolveExceptionsForMethod(&mh, *exceptions_to_resolve); 689 } 690 return true; 691} 692 693static bool RecordImageClassesVisitor(mirror::Class* klass, void* arg) 694 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 695 CompilerDriver::DescriptorSet* image_classes = 696 reinterpret_cast<CompilerDriver::DescriptorSet*>(arg); 697 image_classes->insert(ClassHelper(klass).GetDescriptor()); 698 return true; 699} 700 701// Make a list of descriptors for classes to include in the image 702void CompilerDriver::LoadImageClasses(TimingLogger& timings) 703 LOCKS_EXCLUDED(Locks::mutator_lock_) { 704 if (!IsImage()) { 705 return; 706 } 707 708 timings.NewSplit("LoadImageClasses"); 709 // Make a first class to load all classes explicitly listed in the file 710 Thread* self = Thread::Current(); 711 ScopedObjectAccess soa(self); 712 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 713 for (auto it = image_classes_->begin(), end = image_classes_->end(); it != end;) { 714 const std::string& descriptor(*it); 715 SirtRef<mirror::Class> klass(self, class_linker->FindSystemClass(descriptor.c_str())); 716 if (klass.get() == NULL) { 717 VLOG(compiler) << "Failed to find class " << descriptor; 718 image_classes_->erase(it++); 719 self->ClearException(); 720 } else { 721 ++it; 722 } 723 } 724 725 // Resolve exception classes referenced by the loaded classes. The catch logic assumes 726 // exceptions are resolved by the verifier when there is a catch block in an interested method. 727 // Do this here so that exception classes appear to have been specified image classes. 728 std::set<std::pair<uint16_t, const DexFile*> > unresolved_exception_types; 729 SirtRef<mirror::Class> java_lang_Throwable(self, 730 class_linker->FindSystemClass("Ljava/lang/Throwable;")); 731 do { 732 unresolved_exception_types.clear(); 733 class_linker->VisitClasses(ResolveCatchBlockExceptionsClassVisitor, 734 &unresolved_exception_types); 735 for (const std::pair<uint16_t, const DexFile*>& exception_type : unresolved_exception_types) { 736 uint16_t exception_type_idx = exception_type.first; 737 const DexFile* dex_file = exception_type.second; 738 SirtRef<mirror::DexCache> dex_cache(self, class_linker->FindDexCache(*dex_file)); 739 SirtRef<mirror::ClassLoader> class_loader(self, nullptr); 740 SirtRef<mirror::Class> klass(self, class_linker->ResolveType(*dex_file, exception_type_idx, 741 dex_cache, class_loader)); 742 if (klass.get() == NULL) { 743 const DexFile::TypeId& type_id = dex_file->GetTypeId(exception_type_idx); 744 const char* descriptor = dex_file->GetTypeDescriptor(type_id); 745 LOG(FATAL) << "Failed to resolve class " << descriptor; 746 } 747 DCHECK(java_lang_Throwable->IsAssignableFrom(klass.get())); 748 } 749 // Resolving exceptions may load classes that reference more exceptions, iterate until no 750 // more are found 751 } while (!unresolved_exception_types.empty()); 752 753 // We walk the roots looking for classes so that we'll pick up the 754 // above classes plus any classes them depend on such super 755 // classes, interfaces, and the required ClassLinker roots. 756 class_linker->VisitClasses(RecordImageClassesVisitor, image_classes_.get()); 757 758 CHECK_NE(image_classes_->size(), 0U); 759} 760 761static void MaybeAddToImageClasses(mirror::Class* klass, CompilerDriver::DescriptorSet* image_classes) 762 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 763 while (!klass->IsObjectClass()) { 764 ClassHelper kh(klass); 765 const char* descriptor = kh.GetDescriptor(); 766 std::pair<CompilerDriver::DescriptorSet::iterator, bool> result = 767 image_classes->insert(descriptor); 768 if (result.second) { 769 VLOG(compiler) << "Adding " << descriptor << " to image classes"; 770 } else { 771 return; 772 } 773 for (size_t i = 0; i < kh.NumDirectInterfaces(); ++i) { 774 MaybeAddToImageClasses(kh.GetDirectInterface(i), image_classes); 775 } 776 if (klass->IsArrayClass()) { 777 MaybeAddToImageClasses(klass->GetComponentType(), image_classes); 778 } 779 klass = klass->GetSuperClass(); 780 } 781} 782 783void CompilerDriver::FindClinitImageClassesCallback(mirror::Object* object, void* arg) { 784 DCHECK(object != NULL); 785 DCHECK(arg != NULL); 786 CompilerDriver* compiler_driver = reinterpret_cast<CompilerDriver*>(arg); 787 MaybeAddToImageClasses(object->GetClass(), compiler_driver->image_classes_.get()); 788} 789 790void CompilerDriver::UpdateImageClasses(TimingLogger& timings) { 791 if (IsImage()) { 792 timings.NewSplit("UpdateImageClasses"); 793 794 // Update image_classes_ with classes for objects created by <clinit> methods. 795 Thread* self = Thread::Current(); 796 const char* old_cause = self->StartAssertNoThreadSuspension("ImageWriter"); 797 gc::Heap* heap = Runtime::Current()->GetHeap(); 798 // TODO: Image spaces only? 799 ScopedObjectAccess soa(Thread::Current()); 800 WriterMutexLock mu(self, *Locks::heap_bitmap_lock_); 801 heap->VisitObjects(FindClinitImageClassesCallback, this); 802 self->EndAssertNoThreadSuspension(old_cause); 803 } 804} 805 806bool CompilerDriver::CanAssumeTypeIsPresentInDexCache(const DexFile& dex_file, uint32_t type_idx) { 807 if (IsImage() && 808 IsImageClass(dex_file.StringDataByIdx(dex_file.GetTypeId(type_idx).descriptor_idx_))) { 809 if (kIsDebugBuild) { 810 ScopedObjectAccess soa(Thread::Current()); 811 mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); 812 mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); 813 CHECK(resolved_class != NULL); 814 } 815 stats_->TypeInDexCache(); 816 return true; 817 } else { 818 stats_->TypeNotInDexCache(); 819 return false; 820 } 821} 822 823bool CompilerDriver::CanAssumeStringIsPresentInDexCache(const DexFile& dex_file, 824 uint32_t string_idx) { 825 // See also Compiler::ResolveDexFile 826 827 bool result = false; 828 if (IsImage()) { 829 // We resolve all const-string strings when building for the image. 830 ScopedObjectAccess soa(Thread::Current()); 831 SirtRef<mirror::DexCache> dex_cache(soa.Self(), Runtime::Current()->GetClassLinker()->FindDexCache(dex_file)); 832 Runtime::Current()->GetClassLinker()->ResolveString(dex_file, string_idx, dex_cache); 833 result = true; 834 } 835 if (result) { 836 stats_->StringInDexCache(); 837 } else { 838 stats_->StringNotInDexCache(); 839 } 840 return result; 841} 842 843bool CompilerDriver::CanAccessTypeWithoutChecks(uint32_t referrer_idx, const DexFile& dex_file, 844 uint32_t type_idx, 845 bool* type_known_final, bool* type_known_abstract, 846 bool* equals_referrers_class) { 847 if (type_known_final != NULL) { 848 *type_known_final = false; 849 } 850 if (type_known_abstract != NULL) { 851 *type_known_abstract = false; 852 } 853 if (equals_referrers_class != NULL) { 854 *equals_referrers_class = false; 855 } 856 ScopedObjectAccess soa(Thread::Current()); 857 mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); 858 // Get type from dex cache assuming it was populated by the verifier 859 mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); 860 if (resolved_class == NULL) { 861 stats_->TypeNeedsAccessCheck(); 862 return false; // Unknown class needs access checks. 863 } 864 const DexFile::MethodId& method_id = dex_file.GetMethodId(referrer_idx); 865 if (equals_referrers_class != NULL) { 866 *equals_referrers_class = (method_id.class_idx_ == type_idx); 867 } 868 mirror::Class* referrer_class = dex_cache->GetResolvedType(method_id.class_idx_); 869 if (referrer_class == NULL) { 870 stats_->TypeNeedsAccessCheck(); 871 return false; // Incomplete referrer knowledge needs access check. 872 } 873 // Perform access check, will return true if access is ok or false if we're going to have to 874 // check this at runtime (for example for class loaders). 875 bool result = referrer_class->CanAccess(resolved_class); 876 if (result) { 877 stats_->TypeDoesntNeedAccessCheck(); 878 if (type_known_final != NULL) { 879 *type_known_final = resolved_class->IsFinal() && !resolved_class->IsArrayClass(); 880 } 881 if (type_known_abstract != NULL) { 882 *type_known_abstract = resolved_class->IsAbstract() && !resolved_class->IsArrayClass(); 883 } 884 } else { 885 stats_->TypeNeedsAccessCheck(); 886 } 887 return result; 888} 889 890bool CompilerDriver::CanAccessInstantiableTypeWithoutChecks(uint32_t referrer_idx, 891 const DexFile& dex_file, 892 uint32_t type_idx) { 893 ScopedObjectAccess soa(Thread::Current()); 894 mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); 895 // Get type from dex cache assuming it was populated by the verifier. 896 mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); 897 if (resolved_class == NULL) { 898 stats_->TypeNeedsAccessCheck(); 899 return false; // Unknown class needs access checks. 900 } 901 const DexFile::MethodId& method_id = dex_file.GetMethodId(referrer_idx); 902 mirror::Class* referrer_class = dex_cache->GetResolvedType(method_id.class_idx_); 903 if (referrer_class == NULL) { 904 stats_->TypeNeedsAccessCheck(); 905 return false; // Incomplete referrer knowledge needs access check. 906 } 907 // Perform access and instantiable checks, will return true if access is ok or false if we're 908 // going to have to check this at runtime (for example for class loaders). 909 bool result = referrer_class->CanAccess(resolved_class) && resolved_class->IsInstantiable(); 910 if (result) { 911 stats_->TypeDoesntNeedAccessCheck(); 912 } else { 913 stats_->TypeNeedsAccessCheck(); 914 } 915 return result; 916} 917 918bool CompilerDriver::CanEmbedTypeInCode(const DexFile& dex_file, uint32_t type_idx, 919 bool* is_type_initialized, bool* use_direct_type_ptr, 920 uintptr_t* direct_type_ptr) { 921 ScopedObjectAccess soa(Thread::Current()); 922 mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); 923 mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); 924 if (resolved_class == nullptr) { 925 return false; 926 } 927 const bool compiling_boot = Runtime::Current()->GetHeap()->IsCompilingBoot(); 928 if (compiling_boot) { 929 // boot -> boot class pointers. 930 // True if the class is in the image at boot compiling time. 931 const bool is_image_class = IsImage() && IsImageClass( 932 dex_file.StringDataByIdx(dex_file.GetTypeId(type_idx).descriptor_idx_)); 933 // True if pc relative load works. 934 const bool support_boot_image_fixup = GetSupportBootImageFixup(); 935 if (is_image_class && support_boot_image_fixup) { 936 *is_type_initialized = resolved_class->IsInitialized(); 937 *use_direct_type_ptr = false; 938 *direct_type_ptr = 0; 939 return true; 940 } else { 941 return false; 942 } 943 } else { 944 // True if the class is in the image at app compiling time. 945 const bool class_in_image = 946 Runtime::Current()->GetHeap()->FindSpaceFromObject(resolved_class, false)->IsImageSpace(); 947 if (class_in_image) { 948 // boot -> app class pointers. 949 *is_type_initialized = resolved_class->IsInitialized(); 950 *use_direct_type_ptr = true; 951 *direct_type_ptr = reinterpret_cast<uintptr_t>(resolved_class); 952 return true; 953 } else { 954 // app -> app class pointers. 955 // Give up because app does not have an image and class 956 // isn't created at compile time. TODO: implement this 957 // if/when each app gets an image. 958 return false; 959 } 960 } 961} 962 963static mirror::Class* ComputeCompilingMethodsClass(ScopedObjectAccess& soa, 964 SirtRef<mirror::DexCache>& dex_cache, 965 const DexCompilationUnit* mUnit) 966 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 967 // The passed dex_cache is a hint, sanity check before asking the class linker that will take a 968 // lock. 969 if (dex_cache->GetDexFile() != mUnit->GetDexFile()) { 970 dex_cache.reset(mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile())); 971 } 972 SirtRef<mirror::ClassLoader> 973 class_loader(soa.Self(), soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader())); 974 const DexFile::MethodId& referrer_method_id = 975 mUnit->GetDexFile()->GetMethodId(mUnit->GetDexMethodIndex()); 976 return mUnit->GetClassLinker()->ResolveType(*mUnit->GetDexFile(), referrer_method_id.class_idx_, 977 dex_cache, class_loader); 978} 979 980static mirror::ArtField* ComputeFieldReferencedFromCompilingMethod( 981 ScopedObjectAccess& soa, const DexCompilationUnit* mUnit, uint32_t field_idx) 982 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 983 SirtRef<mirror::DexCache> dex_cache(soa.Self(), mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile())); 984 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader())); 985 return mUnit->GetClassLinker()->ResolveField(*mUnit->GetDexFile(), field_idx, dex_cache, 986 class_loader, false); 987} 988 989static mirror::ArtMethod* ComputeMethodReferencedFromCompilingMethod(ScopedObjectAccess& soa, 990 const DexCompilationUnit* mUnit, 991 uint32_t method_idx, 992 InvokeType type) 993 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 994 SirtRef<mirror::DexCache> dex_cache(soa.Self(), mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile())); 995 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader())); 996 return mUnit->GetClassLinker()->ResolveMethod(*mUnit->GetDexFile(), method_idx, dex_cache, 997 class_loader, NULL, type); 998} 999 1000bool CompilerDriver::ComputeInstanceFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, 1001 bool is_put, int* field_offset, bool* is_volatile) { 1002 ScopedObjectAccess soa(Thread::Current()); 1003 // Conservative defaults. 1004 *field_offset = -1; 1005 *is_volatile = true; 1006 // Try to resolve field and ignore if an Incompatible Class Change Error (ie is static). 1007 mirror::ArtField* resolved_field = ComputeFieldReferencedFromCompilingMethod(soa, mUnit, field_idx); 1008 if (resolved_field != NULL && !resolved_field->IsStatic()) { 1009 SirtRef<mirror::DexCache> dex_cache(soa.Self(), 1010 resolved_field->GetDeclaringClass()->GetDexCache()); 1011 mirror::Class* referrer_class = 1012 ComputeCompilingMethodsClass(soa, dex_cache, mUnit); 1013 if (referrer_class != NULL) { 1014 mirror::Class* fields_class = resolved_field->GetDeclaringClass(); 1015 bool access_ok = referrer_class->CanAccessResolvedField(fields_class, resolved_field, 1016 dex_cache.get(), field_idx); 1017 bool is_write_to_final_from_wrong_class = is_put && resolved_field->IsFinal() && 1018 fields_class != referrer_class; 1019 if (access_ok && !is_write_to_final_from_wrong_class) { 1020 *field_offset = resolved_field->GetOffset().Int32Value(); 1021 *is_volatile = resolved_field->IsVolatile(); 1022 stats_->ResolvedInstanceField(); 1023 return true; // Fast path. 1024 } 1025 } 1026 } 1027 // Clean up any exception left by field/type resolution 1028 if (soa.Self()->IsExceptionPending()) { 1029 soa.Self()->ClearException(); 1030 } 1031 stats_->UnresolvedInstanceField(); 1032 return false; // Incomplete knowledge needs slow path. 1033} 1034 1035bool CompilerDriver::ComputeStaticFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, 1036 bool is_put, int* field_offset, int* storage_index, 1037 bool* is_referrers_class, bool* is_volatile, 1038 bool* is_initialized) { 1039 ScopedObjectAccess soa(Thread::Current()); 1040 // Conservative defaults. 1041 *field_offset = -1; 1042 *storage_index = -1; 1043 *is_referrers_class = false; 1044 *is_volatile = true; 1045 *is_initialized = false; 1046 // Try to resolve field and ignore if an Incompatible Class Change Error (ie isn't static). 1047 mirror::ArtField* resolved_field = ComputeFieldReferencedFromCompilingMethod(soa, mUnit, field_idx); 1048 if (resolved_field != NULL && resolved_field->IsStatic()) { 1049 SirtRef<mirror::DexCache> dex_cache(soa.Self(), resolved_field->GetDeclaringClass()->GetDexCache()); 1050 mirror::Class* referrer_class = 1051 ComputeCompilingMethodsClass(soa, dex_cache, mUnit); 1052 if (referrer_class != NULL) { 1053 mirror::Class* fields_class = resolved_field->GetDeclaringClass(); 1054 if (fields_class == referrer_class) { 1055 *is_referrers_class = true; // implies no worrying about class initialization 1056 *is_initialized = true; 1057 *field_offset = resolved_field->GetOffset().Int32Value(); 1058 *is_volatile = resolved_field->IsVolatile(); 1059 stats_->ResolvedLocalStaticField(); 1060 return true; // fast path 1061 } else { 1062 bool access_ok = referrer_class->CanAccessResolvedField(fields_class, resolved_field, 1063 dex_cache.get(), field_idx); 1064 bool is_write_to_final_from_wrong_class = is_put && resolved_field->IsFinal(); 1065 if (access_ok && !is_write_to_final_from_wrong_class) { 1066 // We have the resolved field, we must make it into a index for the referrer 1067 // in its static storage (which may fail if it doesn't have a slot for it) 1068 // TODO: for images we can elide the static storage base null check 1069 // if we know there's a non-null entry in the image 1070 mirror::DexCache* dex_cache = mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile()); 1071 if (fields_class->GetDexCache() == dex_cache) { 1072 // common case where the dex cache of both the referrer and the field are the same, 1073 // no need to search the dex file 1074 *storage_index = fields_class->GetDexTypeIndex(); 1075 *field_offset = resolved_field->GetOffset().Int32Value(); 1076 *is_volatile = resolved_field->IsVolatile(); 1077 *is_initialized = fields_class->IsInitialized() && 1078 CanAssumeTypeIsPresentInDexCache(*mUnit->GetDexFile(), *storage_index); 1079 stats_->ResolvedStaticField(); 1080 return true; 1081 } 1082 // Search dex file for localized ssb index, may fail if field's class is a parent 1083 // of the class mentioned in the dex file and there is no dex cache entry. 1084 const DexFile::StringId* string_id = 1085 mUnit->GetDexFile()->FindStringId(FieldHelper(resolved_field).GetDeclaringClassDescriptor()); 1086 if (string_id != NULL) { 1087 const DexFile::TypeId* type_id = 1088 mUnit->GetDexFile()->FindTypeId(mUnit->GetDexFile()->GetIndexForStringId(*string_id)); 1089 if (type_id != NULL) { 1090 // medium path, needs check of static storage base being initialized 1091 *storage_index = mUnit->GetDexFile()->GetIndexForTypeId(*type_id); 1092 *field_offset = resolved_field->GetOffset().Int32Value(); 1093 *is_volatile = resolved_field->IsVolatile(); 1094 *is_initialized = fields_class->IsInitialized() && 1095 CanAssumeTypeIsPresentInDexCache(*mUnit->GetDexFile(), *storage_index); 1096 stats_->ResolvedStaticField(); 1097 return true; 1098 } 1099 } 1100 } 1101 } 1102 } 1103 } 1104 // Clean up any exception left by field/type resolution 1105 if (soa.Self()->IsExceptionPending()) { 1106 soa.Self()->ClearException(); 1107 } 1108 stats_->UnresolvedStaticField(); 1109 return false; // Incomplete knowledge needs slow path. 1110} 1111 1112void CompilerDriver::GetCodeAndMethodForDirectCall(InvokeType* type, InvokeType sharp_type, 1113 bool no_guarantee_of_dex_cache_entry, 1114 mirror::Class* referrer_class, 1115 mirror::ArtMethod* method, 1116 bool update_stats, 1117 MethodReference* target_method, 1118 uintptr_t* direct_code, 1119 uintptr_t* direct_method) { 1120 // For direct and static methods compute possible direct_code and direct_method values, ie 1121 // an address for the Method* being invoked and an address of the code for that Method*. 1122 // For interface calls compute a value for direct_method that is the interface method being 1123 // invoked, so this can be passed to the out-of-line runtime support code. 1124 *direct_code = 0; 1125 *direct_method = 0; 1126 bool use_dex_cache = false; 1127 const bool compiling_boot = Runtime::Current()->GetHeap()->IsCompilingBoot(); 1128 if (compiler_backend_ == kPortable) { 1129 if (sharp_type != kStatic && sharp_type != kDirect) { 1130 return; 1131 } 1132 use_dex_cache = true; 1133 } else { 1134 if (sharp_type != kStatic && sharp_type != kDirect) { 1135 return; 1136 } 1137 // TODO: support patching on all architectures. 1138 use_dex_cache = compiling_boot && !support_boot_image_fixup_; 1139 } 1140 bool method_code_in_boot = (method->GetDeclaringClass()->GetClassLoader() == nullptr); 1141 if (!use_dex_cache) { 1142 if (!method_code_in_boot) { 1143 use_dex_cache = true; 1144 } else { 1145 bool has_clinit_trampoline = 1146 method->IsStatic() && !method->GetDeclaringClass()->IsInitialized(); 1147 if (has_clinit_trampoline && (method->GetDeclaringClass() != referrer_class)) { 1148 // Ensure we run the clinit trampoline unless we are invoking a static method in the same 1149 // class. 1150 use_dex_cache = true; 1151 } 1152 } 1153 } 1154 if (update_stats && method_code_in_boot) { 1155 stats_->DirectCallsToBoot(*type); 1156 stats_->DirectMethodsToBoot(*type); 1157 } 1158 if (!use_dex_cache && compiling_boot) { 1159 MethodHelper mh(method); 1160 if (!IsImageClass(mh.GetDeclaringClassDescriptor())) { 1161 // We can only branch directly to Methods that are resolved in the DexCache. 1162 // Otherwise we won't invoke the resolution trampoline. 1163 use_dex_cache = true; 1164 } 1165 } 1166 // The method is defined not within this dex file. We need a dex cache slot within the current 1167 // dex file or direct pointers. 1168 bool must_use_direct_pointers = false; 1169 if (target_method->dex_file == method->GetDeclaringClass()->GetDexCache()->GetDexFile()) { 1170 target_method->dex_method_index = method->GetDexMethodIndex(); 1171 } else { 1172 // TODO: support patching from one dex file to another in the boot image. 1173 use_dex_cache = use_dex_cache || compiling_boot; 1174 if (no_guarantee_of_dex_cache_entry) { 1175 // See if the method is also declared in this dex cache. 1176 uint32_t dex_method_idx = MethodHelper(method).FindDexMethodIndexInOtherDexFile( 1177 *target_method->dex_file); 1178 if (dex_method_idx != DexFile::kDexNoIndex) { 1179 target_method->dex_method_index = dex_method_idx; 1180 } else { 1181 must_use_direct_pointers = true; 1182 } 1183 } 1184 } 1185 if (use_dex_cache) { 1186 if (must_use_direct_pointers) { 1187 // Fail. Test above showed the only safe dispatch was via the dex cache, however, the direct 1188 // pointers are required as the dex cache lacks an appropriate entry. 1189 VLOG(compiler) << "Dex cache devirtualization failed for: " << PrettyMethod(method); 1190 } else { 1191 *type = sharp_type; 1192 } 1193 } else { 1194 if (compiling_boot) { 1195 *type = sharp_type; 1196 *direct_method = -1; 1197 *direct_code = -1; 1198 } else { 1199 bool method_in_image = 1200 Runtime::Current()->GetHeap()->FindSpaceFromObject(method, false)->IsImageSpace(); 1201 if (method_in_image) { 1202 CHECK(!method->IsAbstract()); 1203 *type = sharp_type; 1204 *direct_method = reinterpret_cast<uintptr_t>(method); 1205 if (compiler_backend_ == kQuick) { 1206 *direct_code = reinterpret_cast<uintptr_t>(method->GetEntryPointFromQuickCompiledCode()); 1207 } else { 1208 CHECK_EQ(compiler_backend_, kPortable); 1209 *direct_code = reinterpret_cast<uintptr_t>(method->GetEntryPointFromPortableCompiledCode()); 1210 } 1211 target_method->dex_file = method->GetDeclaringClass()->GetDexCache()->GetDexFile(); 1212 target_method->dex_method_index = method->GetDexMethodIndex(); 1213 } else if (!must_use_direct_pointers) { 1214 // Set the code and rely on the dex cache for the method. 1215 *type = sharp_type; 1216 if (compiler_backend_ == kQuick) { 1217 *direct_code = reinterpret_cast<uintptr_t>(method->GetEntryPointFromQuickCompiledCode()); 1218 } else { 1219 CHECK_EQ(compiler_backend_, kPortable); 1220 *direct_code = reinterpret_cast<uintptr_t>(method->GetEntryPointFromPortableCompiledCode()); 1221 } 1222 } else { 1223 // Direct pointers were required but none were available. 1224 VLOG(compiler) << "Dex cache devirtualization failed for: " << PrettyMethod(method); 1225 } 1226 } 1227 } 1228} 1229 1230bool CompilerDriver::ComputeInvokeInfo(const DexCompilationUnit* mUnit, const uint32_t dex_pc, 1231 bool update_stats, bool enable_devirtualization, 1232 InvokeType* invoke_type, MethodReference* target_method, 1233 int* vtable_idx, uintptr_t* direct_code, 1234 uintptr_t* direct_method) { 1235 ScopedObjectAccess soa(Thread::Current()); 1236 *vtable_idx = -1; 1237 *direct_code = 0; 1238 *direct_method = 0; 1239 mirror::ArtMethod* resolved_method = 1240 ComputeMethodReferencedFromCompilingMethod(soa, mUnit, target_method->dex_method_index, 1241 *invoke_type); 1242 if (resolved_method != NULL) { 1243 if (*invoke_type == kVirtual || *invoke_type == kSuper) { 1244 *vtable_idx = resolved_method->GetMethodIndex(); 1245 } else if (*invoke_type == kInterface) { 1246 *vtable_idx = resolved_method->GetDexMethodIndex(); 1247 } 1248 // Don't try to fast-path if we don't understand the caller's class or this appears to be an 1249 // Incompatible Class Change Error. 1250 SirtRef<mirror::DexCache> dex_cache(soa.Self(), resolved_method->GetDeclaringClass()->GetDexCache()); 1251 mirror::Class* referrer_class = 1252 ComputeCompilingMethodsClass(soa, dex_cache, mUnit); 1253 bool icce = resolved_method->CheckIncompatibleClassChange(*invoke_type); 1254 if (referrer_class != NULL && !icce) { 1255 mirror::Class* methods_class = resolved_method->GetDeclaringClass(); 1256 if (referrer_class->CanAccessResolvedMethod(methods_class, resolved_method, dex_cache.get(), 1257 target_method->dex_method_index)) { 1258 const bool enableFinalBasedSharpening = enable_devirtualization; 1259 // Sharpen a virtual call into a direct call when the target is known not to have been 1260 // overridden (ie is final). 1261 bool can_sharpen_virtual_based_on_type = 1262 (*invoke_type == kVirtual) && (resolved_method->IsFinal() || methods_class->IsFinal()); 1263 // For invoke-super, ensure the vtable index will be correct to dispatch in the vtable of 1264 // the super class. 1265 bool can_sharpen_super_based_on_type = (*invoke_type == kSuper) && 1266 (referrer_class != methods_class) && referrer_class->IsSubClass(methods_class) && 1267 resolved_method->GetMethodIndex() < methods_class->GetVTable()->GetLength() && 1268 (methods_class->GetVTable()->Get(resolved_method->GetMethodIndex()) == resolved_method); 1269 1270 if (enableFinalBasedSharpening && (can_sharpen_virtual_based_on_type || 1271 can_sharpen_super_based_on_type)) { 1272 // Sharpen a virtual call into a direct call. The method_idx is into the DexCache 1273 // associated with target_method->dex_file. 1274 CHECK(target_method->dex_file == mUnit->GetDexFile()); 1275 DCHECK(dex_cache.get() == mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile())); 1276 CHECK(dex_cache->GetResolvedMethod(target_method->dex_method_index) == 1277 resolved_method) << PrettyMethod(resolved_method); 1278 InvokeType orig_invoke_type = *invoke_type; 1279 GetCodeAndMethodForDirectCall(invoke_type, kDirect, false, referrer_class, resolved_method, 1280 update_stats, target_method, direct_code, direct_method); 1281 if (update_stats && (*invoke_type == kDirect)) { 1282 stats_->ResolvedMethod(orig_invoke_type); 1283 stats_->VirtualMadeDirect(orig_invoke_type); 1284 } 1285 DCHECK_NE(*invoke_type, kSuper) << PrettyMethod(resolved_method); 1286 return true; 1287 } 1288 const bool enableVerifierBasedSharpening = enable_devirtualization; 1289 if (enableVerifierBasedSharpening && (*invoke_type == kVirtual || 1290 *invoke_type == kInterface)) { 1291 // Did the verifier record a more precise invoke target based on its type information? 1292 DCHECK(mUnit->GetVerifiedMethod() != nullptr); 1293 const MethodReference* devirt_map_target = 1294 mUnit->GetVerifiedMethod()->GetDevirtTarget(dex_pc); 1295 if (devirt_map_target != NULL) { 1296 SirtRef<mirror::DexCache> target_dex_cache(soa.Self(), mUnit->GetClassLinker()->FindDexCache(*devirt_map_target->dex_file)); 1297 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader())); 1298 mirror::ArtMethod* called_method = 1299 mUnit->GetClassLinker()->ResolveMethod(*devirt_map_target->dex_file, 1300 devirt_map_target->dex_method_index, 1301 target_dex_cache, class_loader, NULL, 1302 kVirtual); 1303 CHECK(called_method != NULL); 1304 CHECK(!called_method->IsAbstract()); 1305 InvokeType orig_invoke_type = *invoke_type; 1306 GetCodeAndMethodForDirectCall(invoke_type, kDirect, true, referrer_class, called_method, 1307 update_stats, target_method, direct_code, direct_method); 1308 if (update_stats && (*invoke_type == kDirect)) { 1309 stats_->ResolvedMethod(orig_invoke_type); 1310 stats_->VirtualMadeDirect(orig_invoke_type); 1311 stats_->PreciseTypeDevirtualization(); 1312 } 1313 DCHECK_NE(*invoke_type, kSuper); 1314 return true; 1315 } 1316 } 1317 if (*invoke_type == kSuper) { 1318 // Unsharpened super calls are suspicious so go slow-path. 1319 } else { 1320 // Sharpening failed so generate a regular resolved method dispatch. 1321 if (update_stats) { 1322 stats_->ResolvedMethod(*invoke_type); 1323 } 1324 GetCodeAndMethodForDirectCall(invoke_type, *invoke_type, false, referrer_class, resolved_method, 1325 update_stats, target_method, direct_code, direct_method); 1326 return true; 1327 } 1328 } 1329 } 1330 } 1331 // Clean up any exception left by method/invoke_type resolution 1332 if (soa.Self()->IsExceptionPending()) { 1333 soa.Self()->ClearException(); 1334 } 1335 if (update_stats) { 1336 stats_->UnresolvedMethod(*invoke_type); 1337 } 1338 return false; // Incomplete knowledge needs slow path. 1339} 1340 1341const VerifiedMethod* CompilerDriver::GetVerifiedMethod(const DexFile* dex_file, 1342 uint32_t method_idx) const { 1343 MethodReference ref(dex_file, method_idx); 1344 return verification_results_->GetVerifiedMethod(ref); 1345} 1346 1347bool CompilerDriver::IsSafeCast(const DexCompilationUnit* mUnit, uint32_t dex_pc) { 1348 DCHECK(mUnit->GetVerifiedMethod() != nullptr); 1349 bool result = mUnit->GetVerifiedMethod()->IsSafeCast(dex_pc); 1350 if (result) { 1351 stats_->SafeCast(); 1352 } else { 1353 stats_->NotASafeCast(); 1354 } 1355 return result; 1356} 1357 1358 1359void CompilerDriver::AddCodePatch(const DexFile* dex_file, 1360 uint16_t referrer_class_def_idx, 1361 uint32_t referrer_method_idx, 1362 InvokeType referrer_invoke_type, 1363 uint32_t target_method_idx, 1364 InvokeType target_invoke_type, 1365 size_t literal_offset) { 1366 MutexLock mu(Thread::Current(), compiled_methods_lock_); 1367 code_to_patch_.push_back(new CallPatchInformation(dex_file, 1368 referrer_class_def_idx, 1369 referrer_method_idx, 1370 referrer_invoke_type, 1371 target_method_idx, 1372 target_invoke_type, 1373 literal_offset)); 1374} 1375void CompilerDriver::AddMethodPatch(const DexFile* dex_file, 1376 uint16_t referrer_class_def_idx, 1377 uint32_t referrer_method_idx, 1378 InvokeType referrer_invoke_type, 1379 uint32_t target_method_idx, 1380 InvokeType target_invoke_type, 1381 size_t literal_offset) { 1382 MutexLock mu(Thread::Current(), compiled_methods_lock_); 1383 methods_to_patch_.push_back(new CallPatchInformation(dex_file, 1384 referrer_class_def_idx, 1385 referrer_method_idx, 1386 referrer_invoke_type, 1387 target_method_idx, 1388 target_invoke_type, 1389 literal_offset)); 1390} 1391void CompilerDriver::AddClassPatch(const DexFile* dex_file, 1392 uint16_t referrer_class_def_idx, 1393 uint32_t referrer_method_idx, 1394 uint32_t target_type_idx, 1395 size_t literal_offset) { 1396 MutexLock mu(Thread::Current(), compiled_methods_lock_); 1397 classes_to_patch_.push_back(new TypePatchInformation(dex_file, 1398 referrer_class_def_idx, 1399 referrer_method_idx, 1400 target_type_idx, 1401 literal_offset)); 1402} 1403 1404class ParallelCompilationManager { 1405 public: 1406 typedef void Callback(const ParallelCompilationManager* manager, size_t index); 1407 1408 ParallelCompilationManager(ClassLinker* class_linker, 1409 jobject class_loader, 1410 CompilerDriver* compiler, 1411 const DexFile* dex_file, 1412 ThreadPool& thread_pool) 1413 : index_(0), 1414 class_linker_(class_linker), 1415 class_loader_(class_loader), 1416 compiler_(compiler), 1417 dex_file_(dex_file), 1418 thread_pool_(&thread_pool) {} 1419 1420 ClassLinker* GetClassLinker() const { 1421 CHECK(class_linker_ != NULL); 1422 return class_linker_; 1423 } 1424 1425 jobject GetClassLoader() const { 1426 return class_loader_; 1427 } 1428 1429 CompilerDriver* GetCompiler() const { 1430 CHECK(compiler_ != NULL); 1431 return compiler_; 1432 } 1433 1434 const DexFile* GetDexFile() const { 1435 CHECK(dex_file_ != NULL); 1436 return dex_file_; 1437 } 1438 1439 void ForAll(size_t begin, size_t end, Callback callback, size_t work_units) { 1440 Thread* self = Thread::Current(); 1441 self->AssertNoPendingException(); 1442 CHECK_GT(work_units, 0U); 1443 1444 index_ = begin; 1445 for (size_t i = 0; i < work_units; ++i) { 1446 thread_pool_->AddTask(self, new ForAllClosure(this, end, callback)); 1447 } 1448 thread_pool_->StartWorkers(self); 1449 1450 // Ensure we're suspended while we're blocked waiting for the other threads to finish (worker 1451 // thread destructor's called below perform join). 1452 CHECK_NE(self->GetState(), kRunnable); 1453 1454 // Wait for all the worker threads to finish. 1455 thread_pool_->Wait(self, true, false); 1456 } 1457 1458 size_t NextIndex() { 1459 return index_.FetchAndAdd(1); 1460 } 1461 1462 private: 1463 class ForAllClosure : public Task { 1464 public: 1465 ForAllClosure(ParallelCompilationManager* manager, size_t end, Callback* callback) 1466 : manager_(manager), 1467 end_(end), 1468 callback_(callback) {} 1469 1470 virtual void Run(Thread* self) { 1471 while (true) { 1472 const size_t index = manager_->NextIndex(); 1473 if (UNLIKELY(index >= end_)) { 1474 break; 1475 } 1476 callback_(manager_, index); 1477 self->AssertNoPendingException(); 1478 } 1479 } 1480 1481 virtual void Finalize() { 1482 delete this; 1483 } 1484 1485 private: 1486 ParallelCompilationManager* const manager_; 1487 const size_t end_; 1488 Callback* const callback_; 1489 }; 1490 1491 AtomicInteger index_; 1492 ClassLinker* const class_linker_; 1493 const jobject class_loader_; 1494 CompilerDriver* const compiler_; 1495 const DexFile* const dex_file_; 1496 ThreadPool* const thread_pool_; 1497 1498 DISALLOW_COPY_AND_ASSIGN(ParallelCompilationManager); 1499}; 1500 1501// Return true if the class should be skipped during compilation. 1502// 1503// The first case where we skip is for redundant class definitions in 1504// the boot classpath. We skip all but the first definition in that case. 1505// 1506// The second case where we skip is when an app bundles classes found 1507// in the boot classpath. Since at runtime we will select the class from 1508// the boot classpath, we ignore the one from the app. 1509static bool SkipClass(ClassLinker* class_linker, jobject class_loader, const DexFile& dex_file, 1510 const DexFile::ClassDef& class_def) { 1511 const char* descriptor = dex_file.GetClassDescriptor(class_def); 1512 if (class_loader == NULL) { 1513 DexFile::ClassPathEntry pair = DexFile::FindInClassPath(descriptor, class_linker->GetBootClassPath()); 1514 CHECK(pair.second != NULL); 1515 if (pair.first != &dex_file) { 1516 LOG(WARNING) << "Skipping class " << descriptor << " from " << dex_file.GetLocation() 1517 << " previously found in " << pair.first->GetLocation(); 1518 return true; 1519 } 1520 return false; 1521 } 1522 return class_linker->IsInBootClassPath(descriptor); 1523} 1524 1525// A fast version of SkipClass above if the class pointer is available 1526// that avoids the expensive FindInClassPath search. 1527static bool SkipClass(jobject class_loader, const DexFile& dex_file, mirror::Class* klass) 1528 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1529 DCHECK(klass != NULL); 1530 const DexFile& original_dex_file = *klass->GetDexCache()->GetDexFile(); 1531 if (&dex_file != &original_dex_file) { 1532 if (class_loader == NULL) { 1533 LOG(WARNING) << "Skipping class " << PrettyDescriptor(klass) << " from " 1534 << dex_file.GetLocation() << " previously found in " 1535 << original_dex_file.GetLocation(); 1536 } 1537 return true; 1538 } 1539 return false; 1540} 1541 1542static void ResolveClassFieldsAndMethods(const ParallelCompilationManager* manager, 1543 size_t class_def_index) 1544 LOCKS_EXCLUDED(Locks::mutator_lock_) { 1545 ATRACE_CALL(); 1546 Thread* self = Thread::Current(); 1547 jobject jclass_loader = manager->GetClassLoader(); 1548 const DexFile& dex_file = *manager->GetDexFile(); 1549 ClassLinker* class_linker = manager->GetClassLinker(); 1550 1551 // If an instance field is final then we need to have a barrier on the return, static final 1552 // fields are assigned within the lock held for class initialization. Conservatively assume 1553 // constructor barriers are always required. 1554 bool requires_constructor_barrier = true; 1555 1556 // Method and Field are the worst. We can't resolve without either 1557 // context from the code use (to disambiguate virtual vs direct 1558 // method and instance vs static field) or from class 1559 // definitions. While the compiler will resolve what it can as it 1560 // needs it, here we try to resolve fields and methods used in class 1561 // definitions, since many of them many never be referenced by 1562 // generated code. 1563 const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); 1564 if (!SkipClass(class_linker, jclass_loader, dex_file, class_def)) { 1565 ScopedObjectAccess soa(self); 1566 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), soa.Decode<mirror::ClassLoader*>(jclass_loader)); 1567 SirtRef<mirror::DexCache> dex_cache(soa.Self(), class_linker->FindDexCache(dex_file)); 1568 // Resolve the class. 1569 mirror::Class* klass = class_linker->ResolveType(dex_file, class_def.class_idx_, dex_cache, 1570 class_loader); 1571 bool resolve_fields_and_methods; 1572 if (klass == NULL) { 1573 // Class couldn't be resolved, for example, super-class is in a different dex file. Don't 1574 // attempt to resolve methods and fields when there is no declaring class. 1575 CHECK(soa.Self()->IsExceptionPending()); 1576 soa.Self()->ClearException(); 1577 resolve_fields_and_methods = false; 1578 } else { 1579 resolve_fields_and_methods = manager->GetCompiler()->IsImage(); 1580 } 1581 // Note the class_data pointer advances through the headers, 1582 // static fields, instance fields, direct methods, and virtual 1583 // methods. 1584 const byte* class_data = dex_file.GetClassData(class_def); 1585 if (class_data == NULL) { 1586 // Empty class such as a marker interface. 1587 requires_constructor_barrier = false; 1588 } else { 1589 ClassDataItemIterator it(dex_file, class_data); 1590 while (it.HasNextStaticField()) { 1591 if (resolve_fields_and_methods) { 1592 mirror::ArtField* field = class_linker->ResolveField(dex_file, it.GetMemberIndex(), 1593 dex_cache, class_loader, true); 1594 if (field == NULL) { 1595 CHECK(soa.Self()->IsExceptionPending()); 1596 soa.Self()->ClearException(); 1597 } 1598 } 1599 it.Next(); 1600 } 1601 // We require a constructor barrier if there are final instance fields. 1602 requires_constructor_barrier = false; 1603 while (it.HasNextInstanceField()) { 1604 if ((it.GetMemberAccessFlags() & kAccFinal) != 0) { 1605 requires_constructor_barrier = true; 1606 } 1607 if (resolve_fields_and_methods) { 1608 mirror::ArtField* field = class_linker->ResolveField(dex_file, it.GetMemberIndex(), 1609 dex_cache, class_loader, false); 1610 if (field == NULL) { 1611 CHECK(soa.Self()->IsExceptionPending()); 1612 soa.Self()->ClearException(); 1613 } 1614 } 1615 it.Next(); 1616 } 1617 if (resolve_fields_and_methods) { 1618 while (it.HasNextDirectMethod()) { 1619 mirror::ArtMethod* method = class_linker->ResolveMethod(dex_file, it.GetMemberIndex(), 1620 dex_cache, class_loader, NULL, 1621 it.GetMethodInvokeType(class_def)); 1622 if (method == NULL) { 1623 CHECK(soa.Self()->IsExceptionPending()); 1624 soa.Self()->ClearException(); 1625 } 1626 it.Next(); 1627 } 1628 while (it.HasNextVirtualMethod()) { 1629 mirror::ArtMethod* method = class_linker->ResolveMethod(dex_file, it.GetMemberIndex(), 1630 dex_cache, class_loader, NULL, 1631 it.GetMethodInvokeType(class_def)); 1632 if (method == NULL) { 1633 CHECK(soa.Self()->IsExceptionPending()); 1634 soa.Self()->ClearException(); 1635 } 1636 it.Next(); 1637 } 1638 DCHECK(!it.HasNext()); 1639 } 1640 } 1641 } 1642 if (requires_constructor_barrier) { 1643 manager->GetCompiler()->AddRequiresConstructorBarrier(self, &dex_file, class_def_index); 1644 } 1645} 1646 1647static void ResolveType(const ParallelCompilationManager* manager, size_t type_idx) 1648 LOCKS_EXCLUDED(Locks::mutator_lock_) { 1649 // Class derived values are more complicated, they require the linker and loader. 1650 ScopedObjectAccess soa(Thread::Current()); 1651 ClassLinker* class_linker = manager->GetClassLinker(); 1652 const DexFile& dex_file = *manager->GetDexFile(); 1653 SirtRef<mirror::DexCache> dex_cache(soa.Self(), class_linker->FindDexCache(dex_file)); 1654 SirtRef<mirror::ClassLoader> class_loader( 1655 soa.Self(), soa.Decode<mirror::ClassLoader*>(manager->GetClassLoader())); 1656 mirror::Class* klass = class_linker->ResolveType(dex_file, type_idx, dex_cache, class_loader); 1657 1658 if (klass == NULL) { 1659 CHECK(soa.Self()->IsExceptionPending()); 1660 mirror::Throwable* exception = soa.Self()->GetException(NULL); 1661 VLOG(compiler) << "Exception during type resolution: " << exception->Dump(); 1662 if (strcmp("Ljava/lang/OutOfMemoryError;", 1663 ClassHelper(exception->GetClass()).GetDescriptor()) == 0) { 1664 // There's little point continuing compilation if the heap is exhausted. 1665 LOG(FATAL) << "Out of memory during type resolution for compilation"; 1666 } 1667 soa.Self()->ClearException(); 1668 } 1669} 1670 1671void CompilerDriver::ResolveDexFile(jobject class_loader, const DexFile& dex_file, 1672 ThreadPool& thread_pool, TimingLogger& timings) { 1673 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 1674 1675 // TODO: we could resolve strings here, although the string table is largely filled with class 1676 // and method names. 1677 1678 ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, thread_pool); 1679 if (IsImage()) { 1680 // For images we resolve all types, such as array, whereas for applications just those with 1681 // classdefs are resolved by ResolveClassFieldsAndMethods. 1682 timings.NewSplit("Resolve Types"); 1683 context.ForAll(0, dex_file.NumTypeIds(), ResolveType, thread_count_); 1684 } 1685 1686 timings.NewSplit("Resolve MethodsAndFields"); 1687 context.ForAll(0, dex_file.NumClassDefs(), ResolveClassFieldsAndMethods, thread_count_); 1688} 1689 1690void CompilerDriver::Verify(jobject class_loader, const std::vector<const DexFile*>& dex_files, 1691 ThreadPool& thread_pool, TimingLogger& timings) { 1692 for (size_t i = 0; i != dex_files.size(); ++i) { 1693 const DexFile* dex_file = dex_files[i]; 1694 CHECK(dex_file != NULL); 1695 VerifyDexFile(class_loader, *dex_file, thread_pool, timings); 1696 } 1697} 1698 1699static void VerifyClass(const ParallelCompilationManager* manager, size_t class_def_index) 1700 LOCKS_EXCLUDED(Locks::mutator_lock_) { 1701 ATRACE_CALL(); 1702 ScopedObjectAccess soa(Thread::Current()); 1703 const DexFile& dex_file = *manager->GetDexFile(); 1704 const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); 1705 const char* descriptor = dex_file.GetClassDescriptor(class_def); 1706 ClassLinker* class_linker = manager->GetClassLinker(); 1707 jobject jclass_loader = manager->GetClassLoader(); 1708 SirtRef<mirror::ClassLoader> class_loader( 1709 soa.Self(), soa.Decode<mirror::ClassLoader*>(jclass_loader)); 1710 SirtRef<mirror::Class> klass(soa.Self(), class_linker->FindClass(descriptor, class_loader)); 1711 if (klass.get() == nullptr) { 1712 CHECK(soa.Self()->IsExceptionPending()); 1713 soa.Self()->ClearException(); 1714 1715 /* 1716 * At compile time, we can still structurally verify the class even if FindClass fails. 1717 * This is to ensure the class is structurally sound for compilation. An unsound class 1718 * will be rejected by the verifier and later skipped during compilation in the compiler. 1719 */ 1720 SirtRef<mirror::DexCache> dex_cache(soa.Self(), class_linker->FindDexCache(dex_file)); 1721 std::string error_msg; 1722 if (verifier::MethodVerifier::VerifyClass(&dex_file, dex_cache, class_loader, &class_def, true, 1723 &error_msg) == 1724 verifier::MethodVerifier::kHardFailure) { 1725 LOG(ERROR) << "Verification failed on class " << PrettyDescriptor(descriptor) 1726 << " because: " << error_msg; 1727 } 1728 } else if (!SkipClass(jclass_loader, dex_file, klass.get())) { 1729 CHECK(klass->IsResolved()) << PrettyClass(klass.get()); 1730 class_linker->VerifyClass(klass); 1731 1732 if (klass->IsErroneous()) { 1733 // ClassLinker::VerifyClass throws, which isn't useful in the compiler. 1734 CHECK(soa.Self()->IsExceptionPending()); 1735 soa.Self()->ClearException(); 1736 } 1737 1738 CHECK(klass->IsCompileTimeVerified() || klass->IsErroneous()) 1739 << PrettyDescriptor(klass.get()) << ": state=" << klass->GetStatus(); 1740 } 1741 soa.Self()->AssertNoPendingException(); 1742} 1743 1744void CompilerDriver::VerifyDexFile(jobject class_loader, const DexFile& dex_file, 1745 ThreadPool& thread_pool, TimingLogger& timings) { 1746 timings.NewSplit("Verify Dex File"); 1747 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 1748 ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, thread_pool); 1749 context.ForAll(0, dex_file.NumClassDefs(), VerifyClass, thread_count_); 1750} 1751 1752static const char* class_initializer_black_list[] = { 1753 "Landroid/app/ActivityThread;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1754 "Landroid/bluetooth/BluetoothAudioGateway;", // Calls android.bluetooth.BluetoothAudioGateway.classInitNative(). 1755 "Landroid/bluetooth/HeadsetBase;", // Calls android.bluetooth.HeadsetBase.classInitNative(). 1756 "Landroid/content/res/CompatibilityInfo;", // Requires android.util.DisplayMetrics -..-> android.os.SystemProperties.native_get_int. 1757 "Landroid/content/res/CompatibilityInfo$1;", // Requires android.util.DisplayMetrics -..-> android.os.SystemProperties.native_get_int. 1758 "Landroid/content/UriMatcher;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1759 "Landroid/database/CursorWindow;", // Requires android.util.DisplayMetrics -..-> android.os.SystemProperties.native_get_int. 1760 "Landroid/database/sqlite/SQLiteConnection;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1761 "Landroid/database/sqlite/SQLiteConnection$Operation;", // Requires SimpleDateFormat -> java.util.Locale. 1762 "Landroid/database/sqlite/SQLiteDatabaseConfiguration;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1763 "Landroid/database/sqlite/SQLiteDebug;", // Calls android.util.Log.isLoggable. 1764 "Landroid/database/sqlite/SQLiteOpenHelper;", // Calls Class.getSimpleName -> Class.isAnonymousClass -> Class.getDex. 1765 "Landroid/database/sqlite/SQLiteQueryBuilder;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1766 "Landroid/drm/DrmManagerClient;", // Calls System.loadLibrary. 1767 "Landroid/graphics/drawable/AnimatedRotateDrawable;", // Sub-class of Drawable. 1768 "Landroid/graphics/drawable/AnimationDrawable;", // Sub-class of Drawable. 1769 "Landroid/graphics/drawable/BitmapDrawable;", // Sub-class of Drawable. 1770 "Landroid/graphics/drawable/ClipDrawable;", // Sub-class of Drawable. 1771 "Landroid/graphics/drawable/ColorDrawable;", // Sub-class of Drawable. 1772 "Landroid/graphics/drawable/Drawable;", // Requires android.graphics.Rect. 1773 "Landroid/graphics/drawable/DrawableContainer;", // Sub-class of Drawable. 1774 "Landroid/graphics/drawable/GradientDrawable;", // Sub-class of Drawable. 1775 "Landroid/graphics/drawable/LayerDrawable;", // Sub-class of Drawable. 1776 "Landroid/graphics/drawable/NinePatchDrawable;", // Sub-class of Drawable. 1777 "Landroid/graphics/drawable/RotateDrawable;", // Sub-class of Drawable. 1778 "Landroid/graphics/drawable/ScaleDrawable;", // Sub-class of Drawable. 1779 "Landroid/graphics/drawable/ShapeDrawable;", // Sub-class of Drawable. 1780 "Landroid/graphics/drawable/StateListDrawable;", // Sub-class of Drawable. 1781 "Landroid/graphics/drawable/TransitionDrawable;", // Sub-class of Drawable. 1782 "Landroid/graphics/Matrix;", // Calls android.graphics.Matrix.native_create. 1783 "Landroid/graphics/Matrix$1;", // Requires Matrix. 1784 "Landroid/graphics/PixelFormat;", // Calls android.graphics.PixelFormat.nativeClassInit(). 1785 "Landroid/graphics/Rect;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1786 "Landroid/graphics/SurfaceTexture;", // Calls android.graphics.SurfaceTexture.nativeClassInit(). 1787 "Landroid/graphics/Typeface;", // Calls android.graphics.Typeface.nativeCreate. 1788 "Landroid/inputmethodservice/ExtractEditText;", // Requires android.widget.TextView. 1789 "Landroid/media/AmrInputStream;", // Calls OsConstants.initConstants. 1790 "Landroid/media/CamcorderProfile;", // Calls OsConstants.initConstants. 1791 "Landroid/media/CameraProfile;", // Calls System.loadLibrary. 1792 "Landroid/media/DecoderCapabilities;", // Calls System.loadLibrary. 1793 "Landroid/media/EncoderCapabilities;", // Calls OsConstants.initConstants. 1794 "Landroid/media/ExifInterface;", // Calls OsConstants.initConstants. 1795 "Landroid/media/MediaCodec;", // Calls OsConstants.initConstants. 1796 "Landroid/media/MediaCodecList;", // Calls OsConstants.initConstants. 1797 "Landroid/media/MediaCrypto;", // Calls OsConstants.initConstants. 1798 "Landroid/media/MediaDrm;", // Calls OsConstants.initConstants. 1799 "Landroid/media/MediaExtractor;", // Calls OsConstants.initConstants. 1800 "Landroid/media/MediaFile;", // Requires DecoderCapabilities. 1801 "Landroid/media/MediaMetadataRetriever;", // Calls OsConstants.initConstants. 1802 "Landroid/media/MediaMuxer;", // Calls OsConstants.initConstants. 1803 "Landroid/media/MediaPlayer;", // Calls System.loadLibrary. 1804 "Landroid/media/MediaRecorder;", // Calls System.loadLibrary. 1805 "Landroid/media/MediaScanner;", // Calls System.loadLibrary. 1806 "Landroid/media/ResampleInputStream;", // Calls OsConstants.initConstants. 1807 "Landroid/media/SoundPool;", // Calls OsConstants.initConstants. 1808 "Landroid/media/videoeditor/MediaArtistNativeHelper;", // Calls OsConstants.initConstants. 1809 "Landroid/media/videoeditor/VideoEditorProfile;", // Calls OsConstants.initConstants. 1810 "Landroid/mtp/MtpDatabase;", // Calls OsConstants.initConstants. 1811 "Landroid/mtp/MtpDevice;", // Calls OsConstants.initConstants. 1812 "Landroid/mtp/MtpServer;", // Calls OsConstants.initConstants. 1813 "Landroid/net/NetworkInfo;", // Calls java.util.EnumMap.<init> -> java.lang.Enum.getSharedConstants -> System.identityHashCode. 1814 "Landroid/net/Proxy;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1815 "Landroid/net/SSLCertificateSocketFactory;", // Requires javax.net.ssl.HttpsURLConnection. 1816 "Landroid/net/Uri$AbstractHierarchicalUri;", // Requires Uri. 1817 "Landroid/net/Uri$HierarchicalUri;", // Requires Uri. 1818 "Landroid/net/Uri$OpaqueUri;", // Requires Uri. 1819 "Landroid/net/Uri$StringUri;", // Requires Uri. 1820 "Landroid/net/Uri;", // Calls Class.getSimpleName -> Class.isAnonymousClass -> Class.getDex. 1821 "Landroid/net/WebAddress;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1822 "Landroid/net/wifi/WifiNative;", // Calls new LocalLog -> new Time -> TimeZone -> Pattern.compile. 1823 "Landroid/nfc/NdefRecord;", // Calls String.getBytes -> java.nio.charset.Charset. 1824 "Landroid/opengl/EGL14;", // Calls android.opengl.EGL14._nativeClassInit. 1825 "Landroid/opengl/GLES10;", // Calls android.opengl.GLES10._nativeClassInit. 1826 "Landroid/opengl/GLES10Ext;", // Calls android.opengl.GLES10Ext._nativeClassInit. 1827 "Landroid/opengl/GLES11;", // Requires GLES10. 1828 "Landroid/opengl/GLES11Ext;", // Calls android.opengl.GLES11Ext._nativeClassInit. 1829 "Landroid/opengl/GLES20;", // Calls android.opengl.GLES20._nativeClassInit. 1830 "Landroid/opengl/GLUtils;", // Calls android.opengl.GLUtils.nativeClassInit. 1831 "Landroid/os/Build;", // Calls -..-> android.os.SystemProperties.native_get. 1832 "Landroid/os/Build$VERSION;", // Requires Build. 1833 "Landroid/os/Bundle;", // Calls android.os.Parcel.obtain -..> Parcel.nativeCreate. 1834 "Landroid/os/Debug;", // Requires android.os.Environment. 1835 "Landroid/os/Environment;", // Calls System.getenv. 1836 "Landroid/os/FileUtils;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1837 "Landroid/os/StrictMode;", // Calls android.util.Log.isLoggable. 1838 "Landroid/os/StrictMode$VmPolicy;", // Requires StrictMode. 1839 "Landroid/os/Trace;", // Calls android.os.Trace.nativeGetEnabledTags. 1840 "Landroid/os/UEventObserver;", // Calls Class.getSimpleName -> Class.isAnonymousClass -> Class.getDex. 1841 "Landroid/provider/ContactsContract;", // Calls OsConstants.initConstants. 1842 "Landroid/provider/Settings$Global;", // Calls OsConstants.initConstants. 1843 "Landroid/provider/Settings$Secure;", // Requires android.net.Uri. 1844 "Landroid/provider/Settings$System;", // Requires android.net.Uri. 1845 "Landroid/renderscript/RenderScript;", // Calls System.loadLibrary. 1846 "Landroid/server/BluetoothService;", // Calls android.server.BluetoothService.classInitNative. 1847 "Landroid/server/BluetoothEventLoop;", // Calls android.server.BluetoothEventLoop.classInitNative. 1848 "Landroid/telephony/PhoneNumberUtils;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1849 "Landroid/telephony/TelephonyManager;", // Calls OsConstants.initConstants. 1850 "Landroid/text/AutoText;", // Requires android.util.DisplayMetrics -..-> android.os.SystemProperties.native_get_int. 1851 "Landroid/text/Layout;", // Calls com.android.internal.util.ArrayUtils.emptyArray -> System.identityHashCode. 1852 "Landroid/text/BoringLayout;", // Requires Layout. 1853 "Landroid/text/DynamicLayout;", // Requires Layout. 1854 "Landroid/text/Html$HtmlParser;", // Calls -..-> String.toLowerCase -> java.util.Locale. 1855 "Landroid/text/StaticLayout;", // Requires Layout. 1856 "Landroid/text/TextUtils;", // Requires android.util.DisplayMetrics. 1857 "Landroid/util/DisplayMetrics;", // Calls SystemProperties.native_get_int. 1858 "Landroid/util/Patterns;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1859 "Landroid/view/Choreographer;", // Calls SystemProperties.native_get_boolean. 1860 "Landroid/util/Patterns;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1861 "Landroid/view/GLES20Canvas;", // Calls GLES20Canvas.nIsAvailable(). 1862 "Landroid/view/GLES20RecordingCanvas;", // Requires android.view.GLES20Canvas. 1863 "Landroid/view/GestureDetector;", // Calls android.view.GLES20Canvas.nIsAvailable. 1864 "Landroid/view/HardwareRenderer$Gl20Renderer;", // Requires SystemProperties.native_get. 1865 "Landroid/view/HardwareRenderer$GlRenderer;", // Requires SystemProperties.native_get. 1866 "Landroid/view/InputEventConsistencyVerifier;", // Requires android.os.Build. 1867 "Landroid/view/Surface;", // Requires SystemProperties.native_get. 1868 "Landroid/view/SurfaceControl;", // Calls OsConstants.initConstants. 1869 "Landroid/view/animation/AlphaAnimation;", // Requires Animation. 1870 "Landroid/view/animation/Animation;", // Calls SystemProperties.native_get_boolean. 1871 "Landroid/view/animation/AnimationSet;", // Calls OsConstants.initConstants. 1872 "Landroid/view/textservice/SpellCheckerSubtype;", // Calls Class.getDex(). 1873 "Landroid/webkit/JniUtil;", // Calls System.loadLibrary. 1874 "Landroid/webkit/PluginManager;", // // Calls OsConstants.initConstants. 1875 "Landroid/webkit/WebViewCore;", // Calls System.loadLibrary. 1876 "Landroid/webkit/WebViewFactory;", // Calls -..-> android.os.SystemProperties.native_get. 1877 "Landroid/webkit/WebViewFactory$Preloader;", // Calls to Class.forName. 1878 "Landroid/webkit/WebViewInputDispatcher;", // Calls Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1879 "Landroid/webkit/URLUtil;", // Calls Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1880 "Landroid/widget/AutoCompleteTextView;", // Requires TextView. 1881 "Landroid/widget/Button;", // Requires TextView. 1882 "Landroid/widget/CheckBox;", // Requires TextView. 1883 "Landroid/widget/CheckedTextView;", // Requires TextView. 1884 "Landroid/widget/CompoundButton;", // Requires TextView. 1885 "Landroid/widget/EditText;", // Requires TextView. 1886 "Landroid/widget/NumberPicker;", // Requires java.util.Locale. 1887 "Landroid/widget/ScrollBarDrawable;", // Sub-class of Drawable. 1888 "Landroid/widget/SearchView$SearchAutoComplete;", // Requires TextView. 1889 "Landroid/widget/Switch;", // Requires TextView. 1890 "Landroid/widget/TextView;", // Calls Paint.<init> -> Paint.native_init. 1891 "Lcom/android/i18n/phonenumbers/AsYouTypeFormatter;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1892 "Lcom/android/i18n/phonenumbers/MetadataManager;", // Calls OsConstants.initConstants. 1893 "Lcom/android/i18n/phonenumbers/PhoneNumberMatcher;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1894 "Lcom/android/i18n/phonenumbers/PhoneNumberUtil;", // Requires java.util.logging.LogManager. 1895 "Lcom/android/i18n/phonenumbers/geocoding/AreaCodeMap;", // Calls OsConstants.initConstants. 1896 "Lcom/android/i18n/phonenumbers/geocoding/PhoneNumberOfflineGeocoder;", // Calls OsConstants.initConstants. 1897 "Lcom/android/internal/os/SamplingProfilerIntegration;", // Calls SystemProperties.native_get_int. 1898 "Lcom/android/internal/policy/impl/PhoneWindow;", // Calls android.os.Binder.init. 1899 "Lcom/android/internal/view/menu/ActionMenuItemView;", // Requires TextView. 1900 "Lcom/android/internal/widget/DialogTitle;", // Requires TextView. 1901 "Lcom/android/org/bouncycastle/asn1/StreamUtil;", // Calls Runtime.getRuntime().maxMemory(). 1902 "Lcom/android/org/bouncycastle/asn1/pkcs/MacData;", // Calls native ... -> java.math.NativeBN.BN_new(). 1903 "Lcom/android/org/bouncycastle/asn1/pkcs/RSASSAPSSparams;", // Calls native ... -> java.math.NativeBN.BN_new(). 1904 "Lcom/android/org/bouncycastle/asn1/cms/SignedData;", // Calls native ... -> java.math.NativeBN.BN_new(). 1905 "Lcom/android/org/bouncycastle/asn1/x509/GeneralSubtree;", // Calls native ... -> java.math.NativeBN.BN_new(). 1906 "Lcom/android/org/bouncycastle/asn1/x9/X9ECParameters;", // Calls native ... -> java.math.NativeBN.BN_new(). 1907 "Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$MD5;", // Requires com.android.org.conscrypt.NativeCrypto. 1908 "Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$SHA1;", // Requires com.android.org.conscrypt.NativeCrypto. 1909 "Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$SHA256;", // Requires com.android.org.conscrypt.NativeCrypto. 1910 "Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$SHA384;", // Requires com.android.org.conscrypt.NativeCrypto. 1911 "Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$SHA512;", // Requires com.android.org.conscrypt.NativeCrypto. 1912 "Lcom/android/org/bouncycastle/crypto/engines/RSABlindedEngine;", // Calls native ... -> java.math.NativeBN.BN_new(). 1913 "Lcom/android/org/bouncycastle/crypto/generators/DHKeyGeneratorHelper;", // Calls native ... -> java.math.NativeBN.BN_new(). 1914 "Lcom/android/org/bouncycastle/crypto/generators/DHParametersGenerator;", // Calls native ... -> java.math.NativeBN.BN_new(). 1915 "Lcom/android/org/bouncycastle/crypto/generators/DHParametersHelper;", // Calls System.getenv -> OsConstants.initConstants. 1916 "Lcom/android/org/bouncycastle/crypto/generators/DSAKeyPairGenerator;", // Calls native ... -> java.math.NativeBN.BN_new(). 1917 "Lcom/android/org/bouncycastle/crypto/generators/DSAParametersGenerator;", // Calls native ... -> java.math.NativeBN.BN_new(). 1918 "Lcom/android/org/bouncycastle/crypto/generators/RSAKeyPairGenerator;", // Calls native ... -> java.math.NativeBN.BN_new(). 1919 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;", // Calls OsConstants.initConstants. 1920 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/dsa/KeyPairGeneratorSpi;", // Calls OsConstants.initConstants. 1921 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$EC;", // Calls OsConstants.initConstants. 1922 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$ECDH;", // Calls OsConstants.initConstants. 1923 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$ECDHC;", // Calls OsConstants.initConstants. 1924 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$ECDSA;", // Calls OsConstants.initConstants. 1925 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$ECMQV;", // Calls OsConstants.initConstants. 1926 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi;", // Calls OsConstants.initConstants. 1927 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/rsa/BCRSAPrivateCrtKey;", // Calls native ... -> java.math.NativeBN.BN_new(). 1928 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/rsa/BCRSAPrivateKey;", // Calls native ... -> java.math.NativeBN.BN_new(). 1929 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/rsa/KeyPairGeneratorSpi;", // Calls OsConstants.initConstants. 1930 "Lcom/android/org/bouncycastle/jcajce/provider/keystore/pkcs12/PKCS12KeyStoreSpi$BCPKCS12KeyStore;", // Calls Thread.currentThread. 1931 "Lcom/android/org/bouncycastle/jcajce/provider/keystore/pkcs12/PKCS12KeyStoreSpi;", // Calls Thread.currentThread. 1932 "Lcom/android/org/bouncycastle/jce/PKCS10CertificationRequest;", // Calls native ... -> java.math.NativeBN.BN_new(). 1933 "Lcom/android/org/bouncycastle/jce/provider/CertBlacklist;", // Calls System.getenv -> OsConstants.initConstants. 1934 "Lcom/android/org/bouncycastle/jce/provider/JCERSAPrivateCrtKey;", // Calls native ... -> java.math.NativeBN.BN_new(). 1935 "Lcom/android/org/bouncycastle/jce/provider/JCERSAPrivateKey;", // Calls native ... -> java.math.NativeBN.BN_new(). 1936 "Lcom/android/org/bouncycastle/jce/provider/PKIXCertPathValidatorSpi;", // Calls System.getenv -> OsConstants.initConstants. 1937 "Lcom/android/org/bouncycastle/math/ec/ECConstants;", // Calls native ... -> java.math.NativeBN.BN_new(). 1938 "Lcom/android/org/bouncycastle/math/ec/Tnaf;", // Calls native ... -> java.math.NativeBN.BN_new(). 1939 "Lcom/android/org/bouncycastle/util/BigIntegers;", // Calls native ... -> java.math.NativeBN.BN_new(). 1940 "Lcom/android/org/bouncycastle/x509/X509Util;", // Calls native ... -> java.math.NativeBN.BN_new(). 1941 "Lcom/android/org/conscrypt/CipherSuite;", // Calls OsConstants.initConstants. 1942 "Lcom/android/org/conscrypt/FileClientSessionCache$CacheFile;", // Calls OsConstants.initConstants. 1943 "Lcom/android/org/conscrypt/HandshakeIODataStream;", // Calls OsConstants.initConstants. 1944 "Lcom/android/org/conscrypt/Logger;", // Calls OsConstants.initConstants. 1945 "Lcom/android/org/conscrypt/NativeCrypto;", // Calls native NativeCrypto.clinit(). 1946 "Lcom/android/org/conscrypt/OpenSSLECKeyPairGenerator;", // Calls OsConstants.initConstants. 1947 "Lcom/android/org/conscrypt/OpenSSLEngine;", // Requires com.android.org.conscrypt.NativeCrypto. 1948 "Lcom/android/org/conscrypt/OpenSSLMac$HmacMD5;", // Calls native NativeCrypto.clinit(). 1949 "Lcom/android/org/conscrypt/OpenSSLMac$HmacSHA1;", // Calls native NativeCrypto.clinit(). 1950 "Lcom/android/org/conscrypt/OpenSSLMac$HmacSHA256;", // Calls native NativeCrypto.clinit(). 1951 "Lcom/android/org/conscrypt/OpenSSLMac$HmacSHA384;", // Calls native NativeCrypto.clinit(). 1952 "Lcom/android/org/conscrypt/OpenSSLMac$HmacSHA512;", // Calls native NativeCrypto.clinit(). 1953 "Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$MD5;", // Requires com.android.org.conscrypt.NativeCrypto. 1954 "Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$SHA1;", // Requires com.android.org.conscrypt.NativeCrypto. 1955 "Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$SHA256;", // Requires com.android.org.conscrypt.NativeCrypto. 1956 "Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$SHA384;", // Requires com.android.org.conscrypt.NativeCrypto. 1957 "Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$SHA512;", // Requires com.android.org.conscrypt.NativeCrypto. 1958 "Lcom/android/org/conscrypt/OpenSSLX509CertPath;", // Calls OsConstants.initConstants. 1959 "Lcom/android/org/conscrypt/OpenSSLX509CertificateFactory;", // Calls OsConstants.initConstants. 1960 "Lcom/android/org/conscrypt/PRF;", // Calls OsConstants.initConstants. 1961 "Lcom/android/org/conscrypt/SSLSessionImpl;", // Calls OsConstants.initConstants. 1962 "Lcom/android/org/conscrypt/TrustedCertificateStore;", // Calls System.getenv -> OsConstants.initConstants. 1963 "Lcom/android/okhttp/ConnectionPool;", // Calls OsConstants.initConstants. 1964 "Lcom/android/okhttp/OkHttpClient;", // Calls OsConstants.initConstants. 1965 "Lcom/android/okhttp/internal/DiskLruCache;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1966 "Lcom/android/okhttp/internal/Util;", // Calls OsConstants.initConstants. 1967 "Lcom/android/okhttp/internal/http/HttpsURLConnectionImpl;", // Calls VMClassLoader.getBootClassPathSize. 1968 "Lcom/android/okhttp/internal/spdy/SpdyConnection;", // Calls OsConstants.initConstants. 1969 "Lcom/android/okhttp/internal/spdy/SpdyReader;", // Calls OsConstants.initConstants. 1970 "Lcom/android/okhttp/internal/tls/OkHostnameVerifier;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1971 "Lcom/google/android/gles_jni/EGLContextImpl;", // Calls com.google.android.gles_jni.EGLImpl._nativeClassInit. 1972 "Lcom/google/android/gles_jni/EGLImpl;", // Calls com.google.android.gles_jni.EGLImpl._nativeClassInit. 1973 "Lcom/google/android/gles_jni/GLImpl;", // Calls com.google.android.gles_jni.GLImpl._nativeClassInit. 1974 "Lgov/nist/core/GenericObject;", // Calls OsConstants.initConstants. 1975 "Lgov/nist/core/Host;", // Calls OsConstants.initConstants. 1976 "Lgov/nist/core/HostPort;", // Calls OsConstants.initConstants. 1977 "Lgov/nist/core/NameValue;", // Calls OsConstants.initConstants. 1978 "Lgov/nist/core/net/DefaultNetworkLayer;", // Calls OsConstants.initConstants. 1979 "Lgov/nist/javax/sip/Utils;", // Calls OsConstants.initConstants. 1980 "Lgov/nist/javax/sip/address/AddressImpl;", // Calls OsConstants.initConstants. 1981 "Lgov/nist/javax/sip/address/Authority;", // Calls OsConstants.initConstants. 1982 "Lgov/nist/javax/sip/address/GenericURI;", // Calls OsConstants.initConstants. 1983 "Lgov/nist/javax/sip/address/NetObject;", // Calls OsConstants.initConstants. 1984 "Lgov/nist/javax/sip/address/SipUri;", // Calls OsConstants.initConstants. 1985 "Lgov/nist/javax/sip/address/TelephoneNumber;", // Calls OsConstants.initConstants. 1986 "Lgov/nist/javax/sip/address/UserInfo;", // Calls OsConstants.initConstants. 1987 "Lgov/nist/javax/sip/header/Accept;", // Calls OsConstants.initConstants. 1988 "Lgov/nist/javax/sip/header/AcceptEncoding;", // Calls OsConstants.initConstants. 1989 "Lgov/nist/javax/sip/header/AcceptLanguage;", // Calls OsConstants.initConstants. 1990 "Lgov/nist/javax/sip/header/AddressParametersHeader;", // Calls OsConstants.initConstants. 1991 "Lgov/nist/javax/sip/header/AlertInfoList;", // Calls OsConstants.initConstants. 1992 "Lgov/nist/javax/sip/header/AllowEvents;", // Calls OsConstants.initConstants. 1993 "Lgov/nist/javax/sip/header/AllowEventsList;", // Calls OsConstants.initConstants. 1994 "Lgov/nist/javax/sip/header/AuthenticationInfo;", // Calls OsConstants.initConstants. 1995 "Lgov/nist/javax/sip/header/Authorization;", // Calls OsConstants.initConstants. 1996 "Lgov/nist/javax/sip/header/CSeq;", // Calls OsConstants.initConstants. 1997 "Lgov/nist/javax/sip/header/CallIdentifier;", // Calls OsConstants.initConstants. 1998 "Lgov/nist/javax/sip/header/Challenge;", // Calls OsConstants.initConstants. 1999 "Lgov/nist/javax/sip/header/ContactList;", // Calls OsConstants.initConstants. 2000 "Lgov/nist/javax/sip/header/ContentEncoding;", // Calls OsConstants.initConstants. 2001 "Lgov/nist/javax/sip/header/ContentEncodingList;", // Calls OsConstants.initConstants. 2002 "Lgov/nist/javax/sip/header/ContentLanguageList;", // Calls OsConstants.initConstants. 2003 "Lgov/nist/javax/sip/header/ContentType;", // Calls OsConstants.initConstants. 2004 "Lgov/nist/javax/sip/header/Credentials;", // Calls OsConstants.initConstants. 2005 "Lgov/nist/javax/sip/header/ErrorInfoList;", // Calls OsConstants.initConstants. 2006 "Lgov/nist/javax/sip/header/Expires;", // Calls OsConstants.initConstants. 2007 "Lgov/nist/javax/sip/header/From;", // Calls OsConstants.initConstants. 2008 "Lgov/nist/javax/sip/header/MimeVersion;", // Calls OsConstants.initConstants. 2009 "Lgov/nist/javax/sip/header/NameMap;", // Calls OsConstants.initConstants. 2010 "Lgov/nist/javax/sip/header/Priority;", // Calls OsConstants.initConstants. 2011 "Lgov/nist/javax/sip/header/Protocol;", // Calls OsConstants.initConstants. 2012 "Lgov/nist/javax/sip/header/ProxyAuthenticate;", // Calls OsConstants.initConstants. 2013 "Lgov/nist/javax/sip/header/ProxyAuthenticateList;", // Calls OsConstants.initConstants. 2014 "Lgov/nist/javax/sip/header/ProxyAuthorizationList;", // Calls OsConstants.initConstants. 2015 "Lgov/nist/javax/sip/header/ProxyRequire;", // Calls OsConstants.initConstants. 2016 "Lgov/nist/javax/sip/header/ProxyRequireList;", // Calls OsConstants.initConstants. 2017 "Lgov/nist/javax/sip/header/RSeq;", // Calls OsConstants.initConstants. 2018 "Lgov/nist/javax/sip/header/RecordRoute;", // Calls OsConstants.initConstants. 2019 "Lgov/nist/javax/sip/header/ReferTo;", // Calls OsConstants.initConstants. 2020 "Lgov/nist/javax/sip/header/RequestLine;", // Calls OsConstants.initConstants. 2021 "Lgov/nist/javax/sip/header/Require;", // Calls OsConstants.initConstants. 2022 "Lgov/nist/javax/sip/header/RetryAfter;", // Calls OsConstants.initConstants. 2023 "Lgov/nist/javax/sip/header/SIPETag;", // Calls OsConstants.initConstants. 2024 "Lgov/nist/javax/sip/header/SIPHeader;", // Calls OsConstants.initConstants. 2025 "Lgov/nist/javax/sip/header/SIPHeaderNamesCache;", // Calls OsConstants.initConstants. 2026 "Lgov/nist/javax/sip/header/StatusLine;", // Calls OsConstants.initConstants. 2027 "Lgov/nist/javax/sip/header/SubscriptionState;", // Calls OsConstants.initConstants. 2028 "Lgov/nist/javax/sip/header/TimeStamp;", // Calls OsConstants.initConstants. 2029 "Lgov/nist/javax/sip/header/UserAgent;", // Calls OsConstants.initConstants. 2030 "Lgov/nist/javax/sip/header/Unsupported;", // Calls OsConstants.initConstants. 2031 "Lgov/nist/javax/sip/header/Warning;", // Calls OsConstants.initConstants. 2032 "Lgov/nist/javax/sip/header/ViaList;", // Calls OsConstants.initConstants. 2033 "Lgov/nist/javax/sip/header/extensions/Join;", // Calls OsConstants.initConstants. 2034 "Lgov/nist/javax/sip/header/extensions/References;", // Calls OsConstants.initConstants. 2035 "Lgov/nist/javax/sip/header/extensions/Replaces;", // Calls OsConstants.initConstants. 2036 "Lgov/nist/javax/sip/header/ims/PAccessNetworkInfo;", // Calls OsConstants.initConstants. 2037 "Lgov/nist/javax/sip/header/ims/PAssertedIdentity;", // Calls OsConstants.initConstants. 2038 "Lgov/nist/javax/sip/header/ims/PAssertedIdentityList;", // Calls OsConstants.initConstants. 2039 "Lgov/nist/javax/sip/header/ims/PAssociatedURI;", // Calls OsConstants.initConstants. 2040 "Lgov/nist/javax/sip/header/ims/PCalledPartyID;", // Calls OsConstants.initConstants. 2041 "Lgov/nist/javax/sip/header/ims/PChargingVector;", // Calls OsConstants.initConstants. 2042 "Lgov/nist/javax/sip/header/ims/PPreferredIdentity;", // Calls OsConstants.initConstants. 2043 "Lgov/nist/javax/sip/header/ims/PVisitedNetworkIDList;", // Calls OsConstants.initConstants. 2044 "Lgov/nist/javax/sip/header/ims/PathList;", // Calls OsConstants.initConstants. 2045 "Lgov/nist/javax/sip/header/ims/SecurityAgree;", // Calls OsConstants.initConstants. 2046 "Lgov/nist/javax/sip/header/ims/SecurityClient;", // Calls OsConstants.initConstants. 2047 "Lgov/nist/javax/sip/header/ims/ServiceRoute;", // Calls OsConstants.initConstants. 2048 "Ljava/io/Console;", // Has FileDescriptor(s). 2049 "Ljava/io/File;", // Calls to Random.<init> -> System.currentTimeMillis -> OsConstants.initConstants. 2050 "Ljava/io/FileDescriptor;", // Requires libcore.io.OsConstants. 2051 "Ljava/io/ObjectInputStream;", // Requires java.lang.ClassLoader$SystemClassLoader. 2052 "Ljava/io/ObjectStreamClass;", // Calls to Class.forName -> java.io.FileDescriptor. 2053 "Ljava/io/ObjectStreamConstants;", // Instance of non-image class SerializablePermission. 2054 "Ljava/lang/ClassLoader$SystemClassLoader;", // Calls System.getProperty -> OsConstants.initConstants. 2055 "Ljava/lang/HexStringParser;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 2056 "Ljava/lang/ProcessManager;", // Calls Thread.currentThread. 2057 "Ljava/lang/Runtime;", // Calls System.getProperty -> OsConstants.initConstants. 2058 "Ljava/lang/System;", // Calls OsConstants.initConstants. 2059 "Ljava/math/BigDecimal;", // Calls native ... -> java.math.NativeBN.BN_new(). 2060 "Ljava/math/BigInteger;", // Calls native ... -> java.math.NativeBN.BN_new(). 2061 "Ljava/math/Primality;", // Calls native ... -> java.math.NativeBN.BN_new(). 2062 "Ljava/math/Multiplication;", // Calls native ... -> java.math.NativeBN.BN_new(). 2063 "Ljava/net/InetAddress;", // Requires libcore.io.OsConstants. 2064 "Ljava/net/Inet4Address;", // Sub-class of InetAddress. 2065 "Ljava/net/Inet6Address;", // Sub-class of InetAddress. 2066 "Ljava/net/InetUnixAddress;", // Sub-class of InetAddress. 2067 "Ljava/net/NetworkInterface;", // Calls to Random.<init> -> System.currentTimeMillis -> OsConstants.initConstants. 2068 "Ljava/nio/charset/Charset;", // Calls Charset.getDefaultCharset -> System.getProperty -> OsConstants.initConstants. 2069 "Ljava/nio/charset/CharsetICU;", // Sub-class of Charset. 2070 "Ljava/nio/charset/Charsets;", // Calls Charset.forName. 2071 "Ljava/nio/charset/StandardCharsets;", // Calls OsConstants.initConstants. 2072 "Ljava/security/AlgorithmParameterGenerator;", // Calls OsConstants.initConstants. 2073 "Ljava/security/KeyPairGenerator$KeyPairGeneratorImpl;", // Calls OsConstants.initConstants. 2074 "Ljava/security/KeyPairGenerator;", // Calls OsConstants.initConstants. 2075 "Ljava/security/Security;", // Tries to do disk IO for "security.properties". 2076 "Ljava/security/spec/RSAKeyGenParameterSpec;", // java.math.NativeBN.BN_new() 2077 "Ljava/sql/Date;", // Calls OsConstants.initConstants. 2078 "Ljava/sql/DriverManager;", // Calls OsConstants.initConstants. 2079 "Ljava/sql/Time;", // Calls OsConstants.initConstants. 2080 "Ljava/sql/Timestamp;", // Calls OsConstants.initConstants. 2081 "Ljava/util/Date;", // Calls Date.<init> -> System.currentTimeMillis -> OsConstants.initConstants. 2082 "Ljava/util/ListResourceBundle;", // Calls OsConstants.initConstants. 2083 "Ljava/util/Locale;", // Calls System.getProperty -> OsConstants.initConstants. 2084 "Ljava/util/PropertyResourceBundle;", // Calls OsConstants.initConstants. 2085 "Ljava/util/ResourceBundle;", // Calls OsConstants.initConstants. 2086 "Ljava/util/ResourceBundle$MissingBundle;", // Calls OsConstants.initConstants. 2087 "Ljava/util/Scanner;", // regex.Pattern.compileImpl. 2088 "Ljava/util/SimpleTimeZone;", // Sub-class of TimeZone. 2089 "Ljava/util/TimeZone;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 2090 "Ljava/util/concurrent/ConcurrentHashMap;", // Calls Runtime.getRuntime().availableProcessors(). 2091 "Ljava/util/concurrent/ConcurrentHashMap$Segment;", // Calls Runtime.getRuntime().availableProcessors(). 2092 "Ljava/util/concurrent/ConcurrentSkipListMap;", // Calls Random() -> OsConstants.initConstants. 2093 "Ljava/util/concurrent/Exchanger;", // Calls Runtime.getRuntime().availableProcessors(). 2094 "Ljava/util/concurrent/ForkJoinPool;", // Makes a thread pool ..-> calls OsConstants.initConstants. 2095 "Ljava/util/concurrent/LinkedTransferQueue;", // Calls Runtime.getRuntime().availableProcessors(). 2096 "Ljava/util/concurrent/Phaser;", // Calls Runtime.getRuntime().availableProcessors(). 2097 "Ljava/util/concurrent/ScheduledThreadPoolExecutor;", // Calls AtomicLong.VMSupportsCS8() 2098 "Ljava/util/concurrent/SynchronousQueue;", // Calls Runtime.getRuntime().availableProcessors(). 2099 "Ljava/util/concurrent/atomic/AtomicLong;", // Calls AtomicLong.VMSupportsCS8() 2100 "Ljava/util/logging/LogManager;", // Calls System.getProperty -> OsConstants.initConstants. 2101 "Ljava/util/prefs/AbstractPreferences;", // Calls OsConstants.initConstants. 2102 "Ljava/util/prefs/FilePreferencesImpl;", // Calls OsConstants.initConstants. 2103 "Ljava/util/prefs/FilePreferencesFactoryImpl;", // Calls OsConstants.initConstants. 2104 "Ljava/util/prefs/Preferences;", // Calls OsConstants.initConstants. 2105 "Ljavax/crypto/KeyAgreement;", // Calls OsConstants.initConstants. 2106 "Ljavax/crypto/KeyGenerator;", // Calls OsConstants.initConstants. 2107 "Ljavax/security/cert/X509Certificate;", // Calls VMClassLoader.getBootClassPathSize. 2108 "Ljavax/security/cert/X509Certificate$1;", // Calls VMClassLoader.getBootClassPathSize. 2109 "Ljavax/microedition/khronos/egl/EGL10;", // Requires EGLContext. 2110 "Ljavax/microedition/khronos/egl/EGLContext;", // Requires com.google.android.gles_jni.EGLImpl. 2111 "Ljavax/xml/datatype/DatatypeConstants;", // Calls OsConstants.initConstants. 2112 "Ljavax/xml/datatype/FactoryFinder;", // Calls OsConstants.initConstants. 2113 "Ljavax/xml/namespace/QName;", // Calls OsConstants.initConstants. 2114 "Ljavax/xml/validation/SchemaFactoryFinder;", // Calls OsConstants.initConstants. 2115 "Ljavax/xml/xpath/XPathConstants;", // Calls OsConstants.initConstants. 2116 "Ljavax/xml/xpath/XPathFactoryFinder;", // Calls OsConstants.initConstants. 2117 "Llibcore/icu/LocaleData;", // Requires java.util.Locale. 2118 "Llibcore/icu/TimeZoneNames;", // Requires java.util.TimeZone. 2119 "Llibcore/io/IoUtils;", // Calls Random.<init> -> System.currentTimeMillis -> FileDescriptor -> OsConstants.initConstants. 2120 "Llibcore/io/OsConstants;", // Platform specific. 2121 "Llibcore/net/MimeUtils;", // Calls libcore.net.MimeUtils.getContentTypesPropertiesStream -> System.getProperty. 2122 "Llibcore/reflect/Types;", // Calls OsConstants.initConstants. 2123 "Llibcore/util/ZoneInfo;", // Sub-class of TimeZone. 2124 "Llibcore/util/ZoneInfoDB;", // Calls System.getenv -> OsConstants.initConstants. 2125 "Lorg/apache/commons/logging/LogFactory;", // Calls System.getProperty. 2126 "Lorg/apache/commons/logging/impl/LogFactoryImpl;", // Calls OsConstants.initConstants. 2127 "Lorg/apache/harmony/security/fortress/Services;", // Calls ClassLoader.getSystemClassLoader -> System.getProperty. 2128 "Lorg/apache/harmony/security/provider/cert/X509CertFactoryImpl;", // Requires java.nio.charsets.Charsets. 2129 "Lorg/apache/harmony/security/provider/crypto/RandomBitsSupplier;", // Requires java.io.File. 2130 "Lorg/apache/harmony/security/utils/AlgNameMapper;", // Requires java.util.Locale. 2131 "Lorg/apache/harmony/security/pkcs10/CertificationRequest;", // Calls Thread.currentThread. 2132 "Lorg/apache/harmony/security/pkcs10/CertificationRequestInfo;", // Calls Thread.currentThread. 2133 "Lorg/apache/harmony/security/pkcs7/AuthenticatedAttributes;", // Calls Thread.currentThread. 2134 "Lorg/apache/harmony/security/pkcs7/SignedData;", // Calls Thread.currentThread. 2135 "Lorg/apache/harmony/security/pkcs7/SignerInfo;", // Calls Thread.currentThread. 2136 "Lorg/apache/harmony/security/pkcs8/PrivateKeyInfo;", // Calls Thread.currentThread. 2137 "Lorg/apache/harmony/security/provider/crypto/SHA1PRNG_SecureRandomImpl;", // Calls OsConstants.initConstants. 2138 "Lorg/apache/harmony/security/x501/AttributeTypeAndValue;", // Calls IntegralToString.convertInt -> Thread.currentThread. 2139 "Lorg/apache/harmony/security/x501/DirectoryString;", // Requires BigInteger. 2140 "Lorg/apache/harmony/security/x501/Name;", // Requires org.apache.harmony.security.x501.AttributeTypeAndValue. 2141 "Lorg/apache/harmony/security/x509/AccessDescription;", // Calls Thread.currentThread. 2142 "Lorg/apache/harmony/security/x509/AuthorityKeyIdentifier;", // Calls Thread.currentThread. 2143 "Lorg/apache/harmony/security/x509/CRLDistributionPoints;", // Calls Thread.currentThread. 2144 "Lorg/apache/harmony/security/x509/Certificate;", // Requires org.apache.harmony.security.x509.TBSCertificate. 2145 "Lorg/apache/harmony/security/x509/CertificateIssuer;", // Calls Thread.currentThread. 2146 "Lorg/apache/harmony/security/x509/CertificateList;", // Calls Thread.currentThread. 2147 "Lorg/apache/harmony/security/x509/DistributionPoint;", // Calls Thread.currentThread. 2148 "Lorg/apache/harmony/security/x509/DistributionPointName;", // Calls Thread.currentThread. 2149 "Lorg/apache/harmony/security/x509/EDIPartyName;", // Calls native ... -> java.math.NativeBN.BN_new(). 2150 "Lorg/apache/harmony/security/x509/GeneralName;", // Requires org.apache.harmony.security.x501.Name. 2151 "Lorg/apache/harmony/security/x509/GeneralNames;", // Requires GeneralName. 2152 "Lorg/apache/harmony/security/x509/GeneralSubtree;", // Calls Thread.currentThread. 2153 "Lorg/apache/harmony/security/x509/GeneralSubtrees;", // Calls Thread.currentThread. 2154 "Lorg/apache/harmony/security/x509/InfoAccessSyntax;", // Calls Thread.currentThread. 2155 "Lorg/apache/harmony/security/x509/IssuingDistributionPoint;", // Calls Thread.currentThread. 2156 "Lorg/apache/harmony/security/x509/NameConstraints;", // Calls Thread.currentThread. 2157 "Lorg/apache/harmony/security/x509/TBSCertList$RevokedCertificate;", // Calls NativeBN.BN_new(). 2158 "Lorg/apache/harmony/security/x509/TBSCertList;", // Calls Thread.currentThread. 2159 "Lorg/apache/harmony/security/x509/TBSCertificate;", // Requires org.apache.harmony.security.x501.Name. 2160 "Lorg/apache/harmony/security/x509/Time;", // Calls native ... -> java.math.NativeBN.BN_new(). 2161 "Lorg/apache/harmony/security/x509/Validity;", // Requires x509.Time. 2162 "Lorg/apache/harmony/security/x509/tsp/TSTInfo;", // Calls Thread.currentThread. 2163 "Lorg/apache/harmony/xml/ExpatParser;", // Calls native ExpatParser.staticInitialize. 2164 "Lorg/apache/harmony/xml/ExpatParser$EntityParser;", // Calls ExpatParser.staticInitialize. 2165 "Lorg/apache/http/conn/params/ConnRouteParams;", // Requires java.util.Locale. 2166 "Lorg/apache/http/conn/ssl/SSLSocketFactory;", // Calls java.security.Security.getProperty. 2167 "Lorg/apache/http/conn/util/InetAddressUtils;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 2168}; 2169 2170static void InitializeClass(const ParallelCompilationManager* manager, size_t class_def_index) 2171 LOCKS_EXCLUDED(Locks::mutator_lock_) { 2172 ATRACE_CALL(); 2173 jobject jclass_loader = manager->GetClassLoader(); 2174 const DexFile& dex_file = *manager->GetDexFile(); 2175 const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); 2176 const DexFile::TypeId& class_type_id = dex_file.GetTypeId(class_def.class_idx_); 2177 const char* descriptor = dex_file.StringDataByIdx(class_type_id.descriptor_idx_); 2178 2179 ScopedObjectAccess soa(Thread::Current()); 2180 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), 2181 soa.Decode<mirror::ClassLoader*>(jclass_loader)); 2182 SirtRef<mirror::Class> klass(soa.Self(), 2183 manager->GetClassLinker()->FindClass(descriptor, class_loader)); 2184 2185 if (klass.get() != nullptr && !SkipClass(jclass_loader, dex_file, klass.get())) { 2186 // Only try to initialize classes that were successfully verified. 2187 if (klass->IsVerified()) { 2188 // Attempt to initialize the class but bail if we either need to initialize the super-class 2189 // or static fields. 2190 manager->GetClassLinker()->EnsureInitialized(klass, false, false); 2191 if (!klass->IsInitialized()) { 2192 // We don't want non-trivial class initialization occurring on multiple threads due to 2193 // deadlock problems. For example, a parent class is initialized (holding its lock) that 2194 // refers to a sub-class in its static/class initializer causing it to try to acquire the 2195 // sub-class' lock. While on a second thread the sub-class is initialized (holding its lock) 2196 // after first initializing its parents, whose locks are acquired. This leads to a 2197 // parent-to-child and a child-to-parent lock ordering and consequent potential deadlock. 2198 // We need to use an ObjectLock due to potential suspension in the interpreting code. Rather 2199 // than use a special Object for the purpose we use the Class of java.lang.Class. 2200 SirtRef<mirror::Class> sirt_klass(soa.Self(), klass->GetClass()); 2201 ObjectLock<mirror::Class> lock(soa.Self(), &sirt_klass); 2202 // Attempt to initialize allowing initialization of parent classes but still not static 2203 // fields. 2204 manager->GetClassLinker()->EnsureInitialized(klass, false, true); 2205 if (!klass->IsInitialized()) { 2206 // We need to initialize static fields, we only do this for image classes that aren't 2207 // black listed or marked with the $NoPreloadHolder. 2208 bool can_init_static_fields = manager->GetCompiler()->IsImage() && 2209 manager->GetCompiler()->IsImageClass(descriptor); 2210 if (can_init_static_fields) { 2211 // NoPreloadHolder inner class implies this should not be initialized early. 2212 bool is_black_listed = StringPiece(descriptor).ends_with("$NoPreloadHolder;"); 2213 if (!is_black_listed) { 2214 for (size_t i = 0; i < arraysize(class_initializer_black_list); ++i) { 2215 if (strcmp(descriptor, class_initializer_black_list[i]) == 0) { 2216 is_black_listed = true; 2217 break; 2218 } 2219 } 2220 } 2221 if (!is_black_listed) { 2222 VLOG(compiler) << "Initializing: " << descriptor; 2223 if (strcmp("Ljava/lang/Void;", descriptor) == 0) { 2224 // Hand initialize j.l.Void to avoid Dex file operations in un-started runtime. 2225 ObjectLock<mirror::Class> lock(soa.Self(), &klass); 2226 mirror::ObjectArray<mirror::ArtField>* fields = klass->GetSFields(); 2227 CHECK_EQ(fields->GetLength(), 1); 2228 fields->Get(0)->SetObj(klass.get(), 2229 manager->GetClassLinker()->FindPrimitiveClass('V')); 2230 klass->SetStatus(mirror::Class::kStatusInitialized, soa.Self()); 2231 } else { 2232 manager->GetClassLinker()->EnsureInitialized(klass, true, true); 2233 } 2234 } 2235 } 2236 } 2237 soa.Self()->AssertNoPendingException(); 2238 } 2239 } 2240 // Record the final class status if necessary. 2241 ClassReference ref(manager->GetDexFile(), class_def_index); 2242 manager->GetCompiler()->RecordClassStatus(ref, klass->GetStatus()); 2243 } 2244 // Clear any class not found or verification exceptions. 2245 soa.Self()->ClearException(); 2246} 2247 2248void CompilerDriver::InitializeClasses(jobject jni_class_loader, const DexFile& dex_file, 2249 ThreadPool& thread_pool, TimingLogger& timings) { 2250 timings.NewSplit("InitializeNoClinit"); 2251#ifndef NDEBUG 2252 // Sanity check blacklist descriptors. 2253 if (IsImage()) { 2254 for (size_t i = 0; i < arraysize(class_initializer_black_list); ++i) { 2255 const char* descriptor = class_initializer_black_list[i]; 2256 CHECK(IsValidDescriptor(descriptor)) << descriptor; 2257 } 2258 } 2259#endif 2260 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 2261 ParallelCompilationManager context(class_linker, jni_class_loader, this, &dex_file, thread_pool); 2262 context.ForAll(0, dex_file.NumClassDefs(), InitializeClass, thread_count_); 2263} 2264 2265void CompilerDriver::InitializeClasses(jobject class_loader, 2266 const std::vector<const DexFile*>& dex_files, 2267 ThreadPool& thread_pool, TimingLogger& timings) { 2268 for (size_t i = 0; i != dex_files.size(); ++i) { 2269 const DexFile* dex_file = dex_files[i]; 2270 CHECK(dex_file != NULL); 2271 InitializeClasses(class_loader, *dex_file, thread_pool, timings); 2272 } 2273} 2274 2275void CompilerDriver::Compile(jobject class_loader, const std::vector<const DexFile*>& dex_files, 2276 ThreadPool& thread_pool, TimingLogger& timings) { 2277 for (size_t i = 0; i != dex_files.size(); ++i) { 2278 const DexFile* dex_file = dex_files[i]; 2279 CHECK(dex_file != NULL); 2280 CompileDexFile(class_loader, *dex_file, thread_pool, timings); 2281 } 2282} 2283 2284void CompilerDriver::CompileClass(const ParallelCompilationManager* manager, size_t class_def_index) { 2285 ATRACE_CALL(); 2286 jobject jclass_loader = manager->GetClassLoader(); 2287 const DexFile& dex_file = *manager->GetDexFile(); 2288 const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); 2289 ClassLinker* class_linker = manager->GetClassLinker(); 2290 if (SkipClass(class_linker, jclass_loader, dex_file, class_def)) { 2291 return; 2292 } 2293 ClassReference ref(&dex_file, class_def_index); 2294 // Skip compiling classes with generic verifier failures since they will still fail at runtime 2295 if (manager->GetCompiler()->verification_results_->IsClassRejected(ref)) { 2296 return; 2297 } 2298 const byte* class_data = dex_file.GetClassData(class_def); 2299 if (class_data == NULL) { 2300 // empty class, probably a marker interface 2301 return; 2302 } 2303 2304 // Can we run DEX-to-DEX compiler on this class ? 2305 DexToDexCompilationLevel dex_to_dex_compilation_level = kDontDexToDexCompile; 2306 { 2307 ScopedObjectAccess soa(Thread::Current()); 2308 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), 2309 soa.Decode<mirror::ClassLoader*>(jclass_loader)); 2310 dex_to_dex_compilation_level = GetDexToDexCompilationlevel(class_loader, dex_file, class_def); 2311 } 2312 ClassDataItemIterator it(dex_file, class_data); 2313 // Skip fields 2314 while (it.HasNextStaticField()) { 2315 it.Next(); 2316 } 2317 while (it.HasNextInstanceField()) { 2318 it.Next(); 2319 } 2320 CompilerDriver* driver = manager->GetCompiler(); 2321 // Compile direct methods 2322 int64_t previous_direct_method_idx = -1; 2323 while (it.HasNextDirectMethod()) { 2324 uint32_t method_idx = it.GetMemberIndex(); 2325 if (method_idx == previous_direct_method_idx) { 2326 // smali can create dex files with two encoded_methods sharing the same method_idx 2327 // http://code.google.com/p/smali/issues/detail?id=119 2328 it.Next(); 2329 continue; 2330 } 2331 previous_direct_method_idx = method_idx; 2332 driver->CompileMethod(it.GetMethodCodeItem(), it.GetMemberAccessFlags(), 2333 it.GetMethodInvokeType(class_def), class_def_index, 2334 method_idx, jclass_loader, dex_file, dex_to_dex_compilation_level); 2335 it.Next(); 2336 } 2337 // Compile virtual methods 2338 int64_t previous_virtual_method_idx = -1; 2339 while (it.HasNextVirtualMethod()) { 2340 uint32_t method_idx = it.GetMemberIndex(); 2341 if (method_idx == previous_virtual_method_idx) { 2342 // smali can create dex files with two encoded_methods sharing the same method_idx 2343 // http://code.google.com/p/smali/issues/detail?id=119 2344 it.Next(); 2345 continue; 2346 } 2347 previous_virtual_method_idx = method_idx; 2348 driver->CompileMethod(it.GetMethodCodeItem(), it.GetMemberAccessFlags(), 2349 it.GetMethodInvokeType(class_def), class_def_index, 2350 method_idx, jclass_loader, dex_file, dex_to_dex_compilation_level); 2351 it.Next(); 2352 } 2353 DCHECK(!it.HasNext()); 2354} 2355 2356void CompilerDriver::CompileDexFile(jobject class_loader, const DexFile& dex_file, 2357 ThreadPool& thread_pool, TimingLogger& timings) { 2358 timings.NewSplit("Compile Dex File"); 2359 ParallelCompilationManager context(Runtime::Current()->GetClassLinker(), class_loader, this, 2360 &dex_file, thread_pool); 2361 context.ForAll(0, dex_file.NumClassDefs(), CompilerDriver::CompileClass, thread_count_); 2362} 2363 2364void CompilerDriver::CompileMethod(const DexFile::CodeItem* code_item, uint32_t access_flags, 2365 InvokeType invoke_type, uint16_t class_def_idx, 2366 uint32_t method_idx, jobject class_loader, 2367 const DexFile& dex_file, 2368 DexToDexCompilationLevel dex_to_dex_compilation_level) { 2369 CompiledMethod* compiled_method = NULL; 2370 uint64_t start_ns = NanoTime(); 2371 2372 if ((access_flags & kAccNative) != 0) { 2373 compiled_method = (*jni_compiler_)(*this, access_flags, method_idx, dex_file); 2374 CHECK(compiled_method != NULL); 2375 } else if ((access_flags & kAccAbstract) != 0) { 2376 } else { 2377 MethodReference method_ref(&dex_file, method_idx); 2378 bool compile = VerificationResults::IsCandidateForCompilation(method_ref, access_flags); 2379 2380 if (compile) { 2381 CompilerFn compiler = compiler_; 2382#ifdef ART_SEA_IR_MODE 2383 bool use_sea = Runtime::Current()->IsSeaIRMode(); 2384 use_sea = use_sea && 2385 (std::string::npos != PrettyMethod(method_idx, dex_file).find("fibonacci")); 2386 if (use_sea) { 2387 compiler = sea_ir_compiler_; 2388 LOG(INFO) << "Using SEA IR to compile..." << std::endl; 2389 } 2390#endif 2391 // NOTE: if compiler declines to compile this method, it will return NULL. 2392 compiled_method = (*compiler)(*this, code_item, access_flags, invoke_type, class_def_idx, 2393 method_idx, class_loader, dex_file); 2394 } else if (dex_to_dex_compilation_level != kDontDexToDexCompile) { 2395 // TODO: add a mode to disable DEX-to-DEX compilation ? 2396 (*dex_to_dex_compiler_)(*this, code_item, access_flags, 2397 invoke_type, class_def_idx, 2398 method_idx, class_loader, dex_file, 2399 dex_to_dex_compilation_level); 2400 } 2401 } 2402 uint64_t duration_ns = NanoTime() - start_ns; 2403#ifdef ART_USE_PORTABLE_COMPILER 2404 const uint64_t kWarnMilliSeconds = 1000; 2405#else 2406 const uint64_t kWarnMilliSeconds = 100; 2407#endif 2408 if (duration_ns > MsToNs(kWarnMilliSeconds)) { 2409 LOG(WARNING) << "Compilation of " << PrettyMethod(method_idx, dex_file) 2410 << " took " << PrettyDuration(duration_ns); 2411 } 2412 2413 Thread* self = Thread::Current(); 2414 if (compiled_method != NULL) { 2415 MethodReference ref(&dex_file, method_idx); 2416 DCHECK(GetCompiledMethod(ref) == NULL) << PrettyMethod(method_idx, dex_file); 2417 { 2418 MutexLock mu(self, compiled_methods_lock_); 2419 compiled_methods_.Put(ref, compiled_method); 2420 } 2421 DCHECK(GetCompiledMethod(ref) != NULL) << PrettyMethod(method_idx, dex_file); 2422 } 2423 2424 if (self->IsExceptionPending()) { 2425 ScopedObjectAccess soa(self); 2426 LOG(FATAL) << "Unexpected exception compiling: " << PrettyMethod(method_idx, dex_file) << "\n" 2427 << self->GetException(NULL)->Dump(); 2428 } 2429} 2430 2431CompiledClass* CompilerDriver::GetCompiledClass(ClassReference ref) const { 2432 MutexLock mu(Thread::Current(), compiled_classes_lock_); 2433 ClassTable::const_iterator it = compiled_classes_.find(ref); 2434 if (it == compiled_classes_.end()) { 2435 return NULL; 2436 } 2437 CHECK(it->second != NULL); 2438 return it->second; 2439} 2440 2441void CompilerDriver::RecordClassStatus(ClassReference ref, mirror::Class::Status status) { 2442 MutexLock mu(Thread::Current(), compiled_classes_lock_); 2443 auto it = compiled_classes_.find(ref); 2444 if (it == compiled_classes_.end() || it->second->GetStatus() != status) { 2445 // An entry doesn't exist or the status is lower than the new status. 2446 if (it != compiled_classes_.end()) { 2447 CHECK_GT(status, it->second->GetStatus()); 2448 delete it->second; 2449 } 2450 switch (status) { 2451 case mirror::Class::kStatusNotReady: 2452 case mirror::Class::kStatusError: 2453 case mirror::Class::kStatusRetryVerificationAtRuntime: 2454 case mirror::Class::kStatusVerified: 2455 case mirror::Class::kStatusInitialized: 2456 break; // Expected states. 2457 default: 2458 LOG(FATAL) << "Unexpected class status for class " 2459 << PrettyDescriptor(ref.first->GetClassDescriptor(ref.first->GetClassDef(ref.second))) 2460 << " of " << status; 2461 } 2462 CompiledClass* compiled_class = new CompiledClass(status); 2463 compiled_classes_.Overwrite(ref, compiled_class); 2464 } 2465} 2466 2467CompiledMethod* CompilerDriver::GetCompiledMethod(MethodReference ref) const { 2468 MutexLock mu(Thread::Current(), compiled_methods_lock_); 2469 MethodTable::const_iterator it = compiled_methods_.find(ref); 2470 if (it == compiled_methods_.end()) { 2471 return NULL; 2472 } 2473 CHECK(it->second != NULL); 2474 return it->second; 2475} 2476 2477void CompilerDriver::SetBitcodeFileName(std::string const& filename) { 2478 typedef void (*SetBitcodeFileNameFn)(CompilerDriver&, std::string const&); 2479 2480 SetBitcodeFileNameFn set_bitcode_file_name = 2481 reinterpret_cast<SetBitcodeFileNameFn>(compilerLLVMSetBitcodeFileName); 2482 2483 set_bitcode_file_name(*this, filename); 2484} 2485 2486 2487void CompilerDriver::AddRequiresConstructorBarrier(Thread* self, const DexFile* dex_file, 2488 uint16_t class_def_index) { 2489 WriterMutexLock mu(self, freezing_constructor_lock_); 2490 freezing_constructor_classes_.insert(ClassReference(dex_file, class_def_index)); 2491} 2492 2493bool CompilerDriver::RequiresConstructorBarrier(Thread* self, const DexFile* dex_file, 2494 uint16_t class_def_index) { 2495 ReaderMutexLock mu(self, freezing_constructor_lock_); 2496 return freezing_constructor_classes_.count(ClassReference(dex_file, class_def_index)) != 0; 2497} 2498 2499bool CompilerDriver::WriteElf(const std::string& android_root, 2500 bool is_host, 2501 const std::vector<const art::DexFile*>& dex_files, 2502 OatWriter& oat_writer, 2503 art::File* file) 2504 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 2505#if defined(ART_USE_PORTABLE_COMPILER) 2506 return art::ElfWriterMclinker::Create(file, oat_writer, dex_files, android_root, is_host, *this); 2507#else 2508 return art::ElfWriterQuick::Create(file, oat_writer, dex_files, android_root, is_host, *this); 2509#endif 2510} 2511void CompilerDriver::InstructionSetToLLVMTarget(InstructionSet instruction_set, 2512 std::string& target_triple, 2513 std::string& target_cpu, 2514 std::string& target_attr) { 2515 switch (instruction_set) { 2516 case kThumb2: 2517 target_triple = "thumb-none-linux-gnueabi"; 2518 target_cpu = "cortex-a9"; 2519 target_attr = "+thumb2,+neon,+neonfp,+vfp3,+db"; 2520 break; 2521 2522 case kArm: 2523 target_triple = "armv7-none-linux-gnueabi"; 2524 // TODO: Fix for Nexus S. 2525 target_cpu = "cortex-a9"; 2526 // TODO: Fix for Xoom. 2527 target_attr = "+v7,+neon,+neonfp,+vfp3,+db"; 2528 break; 2529 2530 case kX86: 2531 target_triple = "i386-pc-linux-gnu"; 2532 target_attr = ""; 2533 break; 2534 2535 case kMips: 2536 target_triple = "mipsel-unknown-linux"; 2537 target_attr = "mips32r2"; 2538 break; 2539 2540 default: 2541 LOG(FATAL) << "Unknown instruction set: " << instruction_set; 2542 } 2543 } 2544} // namespace art 2545