compiler_driver.cc revision 632e458dc267fadfb8120be3ab02701e09e64875
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) 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 compiler_library_(NULL), 361 compiler_(NULL), 362 compiler_context_(NULL), 363 jni_compiler_(NULL), 364 compiler_enable_auto_elf_loading_(NULL), 365 compiler_get_method_code_addr_(NULL), 366 support_boot_image_fixup_(instruction_set == kThumb2), 367 dedupe_code_("dedupe code"), 368 dedupe_mapping_table_("dedupe mapping table"), 369 dedupe_vmap_table_("dedupe vmap table"), 370 dedupe_gc_map_("dedupe gc map") { 371 372 CHECK_PTHREAD_CALL(pthread_key_create, (&tls_key_, NULL), "compiler tls key"); 373 374 // TODO: more work needed to combine initializations and allow per-method backend selection 375 typedef void (*InitCompilerContextFn)(CompilerDriver&); 376 InitCompilerContextFn init_compiler_context; 377 if (compiler_backend_ == kPortable) { 378 // Initialize compiler_context_ 379 init_compiler_context = reinterpret_cast<void (*)(CompilerDriver&)>(ArtInitCompilerContext); 380 compiler_ = reinterpret_cast<CompilerFn>(ArtCompileMethod); 381 } else { 382 init_compiler_context = reinterpret_cast<void (*)(CompilerDriver&)>(ArtInitQuickCompilerContext); 383 compiler_ = reinterpret_cast<CompilerFn>(ArtQuickCompileMethod); 384 } 385 386 dex_to_dex_compiler_ = reinterpret_cast<DexToDexCompilerFn>(ArtCompileDEX); 387 388#ifdef ART_SEA_IR_MODE 389 sea_ir_compiler_ = NULL; 390 if (Runtime::Current()->IsSeaIRMode()) { 391 sea_ir_compiler_ = reinterpret_cast<CompilerFn>(SeaIrCompileMethod); 392 } 393#endif 394 395 init_compiler_context(*this); 396 397 if (compiler_backend_ == kPortable) { 398 jni_compiler_ = reinterpret_cast<JniCompilerFn>(ArtLLVMJniCompileMethod); 399 } else { 400 jni_compiler_ = reinterpret_cast<JniCompilerFn>(ArtQuickJniCompileMethod); 401 } 402 403 CHECK(!Runtime::Current()->IsStarted()); 404 if (!image_) { 405 CHECK(image_classes_.get() == NULL); 406 } 407} 408 409std::vector<uint8_t>* CompilerDriver::DeduplicateCode(const std::vector<uint8_t>& code) { 410 return dedupe_code_.Add(Thread::Current(), code); 411} 412 413std::vector<uint8_t>* CompilerDriver::DeduplicateMappingTable(const std::vector<uint8_t>& code) { 414 return dedupe_mapping_table_.Add(Thread::Current(), code); 415} 416 417std::vector<uint8_t>* CompilerDriver::DeduplicateVMapTable(const std::vector<uint8_t>& code) { 418 return dedupe_vmap_table_.Add(Thread::Current(), code); 419} 420 421std::vector<uint8_t>* CompilerDriver::DeduplicateGCMap(const std::vector<uint8_t>& code) { 422 return dedupe_gc_map_.Add(Thread::Current(), code); 423} 424 425CompilerDriver::~CompilerDriver() { 426 Thread* self = Thread::Current(); 427 { 428 MutexLock mu(self, compiled_classes_lock_); 429 STLDeleteValues(&compiled_classes_); 430 } 431 { 432 MutexLock mu(self, compiled_methods_lock_); 433 STLDeleteValues(&compiled_methods_); 434 } 435 { 436 MutexLock mu(self, compiled_methods_lock_); 437 STLDeleteElements(&code_to_patch_); 438 } 439 { 440 MutexLock mu(self, compiled_methods_lock_); 441 STLDeleteElements(&methods_to_patch_); 442 } 443 { 444 MutexLock mu(self, compiled_methods_lock_); 445 STLDeleteElements(&classes_to_patch_); 446 } 447 CHECK_PTHREAD_CALL(pthread_key_delete, (tls_key_), "delete tls key"); 448 typedef void (*UninitCompilerContextFn)(CompilerDriver&); 449 UninitCompilerContextFn uninit_compiler_context; 450 // Uninitialize compiler_context_ 451 // TODO: rework to combine initialization/uninitialization 452 if (compiler_backend_ == kPortable) { 453 uninit_compiler_context = reinterpret_cast<void (*)(CompilerDriver&)>(ArtUnInitCompilerContext); 454 } else { 455 uninit_compiler_context = reinterpret_cast<void (*)(CompilerDriver&)>(ArtUnInitQuickCompilerContext); 456 } 457 uninit_compiler_context(*this); 458} 459 460CompilerTls* CompilerDriver::GetTls() { 461 // Lazily create thread-local storage 462 CompilerTls* res = static_cast<CompilerTls*>(pthread_getspecific(tls_key_)); 463 if (res == NULL) { 464 res = new CompilerTls(); 465 CHECK_PTHREAD_CALL(pthread_setspecific, (tls_key_, res), "compiler tls"); 466 } 467 return res; 468} 469 470const std::vector<uint8_t>* CompilerDriver::CreateInterpreterToInterpreterBridge() const { 471 return CreateTrampoline(instruction_set_, kInterpreterAbi, 472 INTERPRETER_ENTRYPOINT_OFFSET(pInterpreterToInterpreterBridge)); 473} 474 475const std::vector<uint8_t>* CompilerDriver::CreateInterpreterToCompiledCodeBridge() const { 476 return CreateTrampoline(instruction_set_, kInterpreterAbi, 477 INTERPRETER_ENTRYPOINT_OFFSET(pInterpreterToCompiledCodeBridge)); 478} 479 480const std::vector<uint8_t>* CompilerDriver::CreateJniDlsymLookup() const { 481 return CreateTrampoline(instruction_set_, kJniAbi, JNI_ENTRYPOINT_OFFSET(pDlsymLookup)); 482} 483 484const std::vector<uint8_t>* CompilerDriver::CreatePortableImtConflictTrampoline() const { 485 return CreateTrampoline(instruction_set_, kPortableAbi, 486 PORTABLE_ENTRYPOINT_OFFSET(pPortableImtConflictTrampoline)); 487} 488 489const std::vector<uint8_t>* CompilerDriver::CreatePortableResolutionTrampoline() const { 490 return CreateTrampoline(instruction_set_, kPortableAbi, 491 PORTABLE_ENTRYPOINT_OFFSET(pPortableResolutionTrampoline)); 492} 493 494const std::vector<uint8_t>* CompilerDriver::CreatePortableToInterpreterBridge() const { 495 return CreateTrampoline(instruction_set_, kPortableAbi, 496 PORTABLE_ENTRYPOINT_OFFSET(pPortableToInterpreterBridge)); 497} 498 499const std::vector<uint8_t>* CompilerDriver::CreateQuickImtConflictTrampoline() const { 500 return CreateTrampoline(instruction_set_, kQuickAbi, 501 QUICK_ENTRYPOINT_OFFSET(pQuickImtConflictTrampoline)); 502} 503 504const std::vector<uint8_t>* CompilerDriver::CreateQuickResolutionTrampoline() const { 505 return CreateTrampoline(instruction_set_, kQuickAbi, 506 QUICK_ENTRYPOINT_OFFSET(pQuickResolutionTrampoline)); 507} 508 509const std::vector<uint8_t>* CompilerDriver::CreateQuickToInterpreterBridge() const { 510 return CreateTrampoline(instruction_set_, kQuickAbi, 511 QUICK_ENTRYPOINT_OFFSET(pQuickToInterpreterBridge)); 512} 513 514void CompilerDriver::CompileAll(jobject class_loader, 515 const std::vector<const DexFile*>& dex_files, 516 TimingLogger& timings) { 517 DCHECK(!Runtime::Current()->IsStarted()); 518 UniquePtr<ThreadPool> thread_pool(new ThreadPool("Compiler driver thread pool", thread_count_ - 1)); 519 PreCompile(class_loader, dex_files, *thread_pool.get(), timings); 520 Compile(class_loader, dex_files, *thread_pool.get(), timings); 521 if (dump_stats_) { 522 stats_->Dump(); 523 } 524} 525 526static DexToDexCompilationLevel GetDexToDexCompilationlevel( 527 SirtRef<mirror::ClassLoader>& class_loader, const DexFile& dex_file, 528 const DexFile::ClassDef& class_def) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 529 const char* descriptor = dex_file.GetClassDescriptor(class_def); 530 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 531 mirror::Class* klass = class_linker->FindClass(descriptor, class_loader); 532 if (klass == NULL) { 533 Thread* self = Thread::Current(); 534 CHECK(self->IsExceptionPending()); 535 self->ClearException(); 536 return kDontDexToDexCompile; 537 } 538 // The verifier can only run on "quick" instructions at runtime (see usage of 539 // FindAccessedFieldAtDexPc and FindInvokedMethodAtDexPc in ThrowNullPointerExceptionFromDexPC 540 // function). Since image classes can be verified again while compiling an application, 541 // we must prevent the DEX-to-DEX compiler from introducing them. 542 // TODO: find a way to enable "quick" instructions for image classes and remove this check. 543 bool compiling_image_classes = class_loader.get() == nullptr; 544 if (compiling_image_classes) { 545 return kRequired; 546 } else if (klass->IsVerified()) { 547 // Class is verified so we can enable DEX-to-DEX compilation for performance. 548 return kOptimize; 549 } else if (klass->IsCompileTimeVerified()) { 550 // Class verification has soft-failed. Anyway, ensure at least correctness. 551 DCHECK_EQ(klass->GetStatus(), mirror::Class::kStatusRetryVerificationAtRuntime); 552 return kRequired; 553 } else { 554 // Class verification has failed: do not run DEX-to-DEX compilation. 555 return kDontDexToDexCompile; 556 } 557} 558 559void CompilerDriver::CompileOne(mirror::ArtMethod* method, TimingLogger& timings) { 560 DCHECK(!Runtime::Current()->IsStarted()); 561 Thread* self = Thread::Current(); 562 jobject jclass_loader; 563 const DexFile* dex_file; 564 uint16_t class_def_idx; 565 uint32_t method_idx = method->GetDexMethodIndex(); 566 uint32_t access_flags = method->GetAccessFlags(); 567 InvokeType invoke_type = method->GetInvokeType(); 568 { 569 ScopedObjectAccessUnchecked soa(self); 570 ScopedLocalRef<jobject> 571 local_class_loader(soa.Env(), 572 soa.AddLocalReference<jobject>(method->GetDeclaringClass()->GetClassLoader())); 573 jclass_loader = soa.Env()->NewGlobalRef(local_class_loader.get()); 574 // Find the dex_file 575 MethodHelper mh(method); 576 dex_file = &mh.GetDexFile(); 577 class_def_idx = mh.GetClassDefIndex(); 578 } 579 const DexFile::CodeItem* code_item = dex_file->GetCodeItem(method->GetCodeItemOffset()); 580 self->TransitionFromRunnableToSuspended(kNative); 581 582 std::vector<const DexFile*> dex_files; 583 dex_files.push_back(dex_file); 584 585 UniquePtr<ThreadPool> thread_pool(new ThreadPool("Compiler driver thread pool", 0U)); 586 PreCompile(jclass_loader, dex_files, *thread_pool.get(), timings); 587 588 // Can we run DEX-to-DEX compiler on this class ? 589 DexToDexCompilationLevel dex_to_dex_compilation_level = kDontDexToDexCompile; 590 { 591 ScopedObjectAccess soa(Thread::Current()); 592 const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_idx); 593 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), 594 soa.Decode<mirror::ClassLoader*>(jclass_loader)); 595 dex_to_dex_compilation_level = GetDexToDexCompilationlevel(class_loader, *dex_file, class_def); 596 } 597 CompileMethod(code_item, access_flags, invoke_type, class_def_idx, method_idx, jclass_loader, 598 *dex_file, dex_to_dex_compilation_level); 599 600 self->GetJniEnv()->DeleteGlobalRef(jclass_loader); 601 602 self->TransitionFromSuspendedToRunnable(); 603} 604 605void CompilerDriver::Resolve(jobject class_loader, const std::vector<const DexFile*>& dex_files, 606 ThreadPool& thread_pool, TimingLogger& timings) { 607 for (size_t i = 0; i != dex_files.size(); ++i) { 608 const DexFile* dex_file = dex_files[i]; 609 CHECK(dex_file != NULL); 610 ResolveDexFile(class_loader, *dex_file, thread_pool, timings); 611 } 612} 613 614void CompilerDriver::PreCompile(jobject class_loader, const std::vector<const DexFile*>& dex_files, 615 ThreadPool& thread_pool, TimingLogger& timings) { 616 LoadImageClasses(timings); 617 618 Resolve(class_loader, dex_files, thread_pool, timings); 619 620 Verify(class_loader, dex_files, thread_pool, timings); 621 622 InitializeClasses(class_loader, dex_files, thread_pool, timings); 623 624 UpdateImageClasses(timings); 625} 626 627bool CompilerDriver::IsImageClass(const char* descriptor) const { 628 if (!IsImage()) { 629 return true; 630 } else { 631 return image_classes_->find(descriptor) != image_classes_->end(); 632 } 633} 634 635static void ResolveExceptionsForMethod(MethodHelper* mh, 636 std::set<std::pair<uint16_t, const DexFile*> >& exceptions_to_resolve) 637 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 638 const DexFile::CodeItem* code_item = mh->GetCodeItem(); 639 if (code_item == NULL) { 640 return; // native or abstract method 641 } 642 if (code_item->tries_size_ == 0) { 643 return; // nothing to process 644 } 645 const byte* encoded_catch_handler_list = DexFile::GetCatchHandlerData(*code_item, 0); 646 size_t num_encoded_catch_handlers = DecodeUnsignedLeb128(&encoded_catch_handler_list); 647 for (size_t i = 0; i < num_encoded_catch_handlers; i++) { 648 int32_t encoded_catch_handler_size = DecodeSignedLeb128(&encoded_catch_handler_list); 649 bool has_catch_all = false; 650 if (encoded_catch_handler_size <= 0) { 651 encoded_catch_handler_size = -encoded_catch_handler_size; 652 has_catch_all = true; 653 } 654 for (int32_t j = 0; j < encoded_catch_handler_size; j++) { 655 uint16_t encoded_catch_handler_handlers_type_idx = 656 DecodeUnsignedLeb128(&encoded_catch_handler_list); 657 // Add to set of types to resolve if not already in the dex cache resolved types 658 if (!mh->IsResolvedTypeIdx(encoded_catch_handler_handlers_type_idx)) { 659 exceptions_to_resolve.insert( 660 std::pair<uint16_t, const DexFile*>(encoded_catch_handler_handlers_type_idx, 661 &mh->GetDexFile())); 662 } 663 // ignore address associated with catch handler 664 DecodeUnsignedLeb128(&encoded_catch_handler_list); 665 } 666 if (has_catch_all) { 667 // ignore catch all address 668 DecodeUnsignedLeb128(&encoded_catch_handler_list); 669 } 670 } 671} 672 673static bool ResolveCatchBlockExceptionsClassVisitor(mirror::Class* c, void* arg) 674 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 675 std::set<std::pair<uint16_t, const DexFile*> >* exceptions_to_resolve = 676 reinterpret_cast<std::set<std::pair<uint16_t, const DexFile*> >*>(arg); 677 MethodHelper mh; 678 for (size_t i = 0; i < c->NumVirtualMethods(); ++i) { 679 mirror::ArtMethod* m = c->GetVirtualMethod(i); 680 mh.ChangeMethod(m); 681 ResolveExceptionsForMethod(&mh, *exceptions_to_resolve); 682 } 683 for (size_t i = 0; i < c->NumDirectMethods(); ++i) { 684 mirror::ArtMethod* m = c->GetDirectMethod(i); 685 mh.ChangeMethod(m); 686 ResolveExceptionsForMethod(&mh, *exceptions_to_resolve); 687 } 688 return true; 689} 690 691static bool RecordImageClassesVisitor(mirror::Class* klass, void* arg) 692 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 693 CompilerDriver::DescriptorSet* image_classes = 694 reinterpret_cast<CompilerDriver::DescriptorSet*>(arg); 695 image_classes->insert(ClassHelper(klass).GetDescriptor()); 696 return true; 697} 698 699// Make a list of descriptors for classes to include in the image 700void CompilerDriver::LoadImageClasses(TimingLogger& timings) 701 LOCKS_EXCLUDED(Locks::mutator_lock_) { 702 if (!IsImage()) { 703 return; 704 } 705 706 timings.NewSplit("LoadImageClasses"); 707 // Make a first class to load all classes explicitly listed in the file 708 Thread* self = Thread::Current(); 709 ScopedObjectAccess soa(self); 710 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 711 for (auto it = image_classes_->begin(), end = image_classes_->end(); it != end;) { 712 const std::string& descriptor(*it); 713 SirtRef<mirror::Class> klass(self, class_linker->FindSystemClass(descriptor.c_str())); 714 if (klass.get() == NULL) { 715 VLOG(compiler) << "Failed to find class " << descriptor; 716 image_classes_->erase(it++); 717 self->ClearException(); 718 } else { 719 ++it; 720 } 721 } 722 723 // Resolve exception classes referenced by the loaded classes. The catch logic assumes 724 // exceptions are resolved by the verifier when there is a catch block in an interested method. 725 // Do this here so that exception classes appear to have been specified image classes. 726 std::set<std::pair<uint16_t, const DexFile*> > unresolved_exception_types; 727 SirtRef<mirror::Class> java_lang_Throwable(self, 728 class_linker->FindSystemClass("Ljava/lang/Throwable;")); 729 do { 730 unresolved_exception_types.clear(); 731 class_linker->VisitClasses(ResolveCatchBlockExceptionsClassVisitor, 732 &unresolved_exception_types); 733 for (const std::pair<uint16_t, const DexFile*>& exception_type : unresolved_exception_types) { 734 uint16_t exception_type_idx = exception_type.first; 735 const DexFile* dex_file = exception_type.second; 736 SirtRef<mirror::DexCache> dex_cache(self, class_linker->FindDexCache(*dex_file)); 737 SirtRef<mirror::ClassLoader> class_loader(self, nullptr); 738 SirtRef<mirror::Class> klass(self, class_linker->ResolveType(*dex_file, exception_type_idx, 739 dex_cache, class_loader)); 740 if (klass.get() == NULL) { 741 const DexFile::TypeId& type_id = dex_file->GetTypeId(exception_type_idx); 742 const char* descriptor = dex_file->GetTypeDescriptor(type_id); 743 LOG(FATAL) << "Failed to resolve class " << descriptor; 744 } 745 DCHECK(java_lang_Throwable->IsAssignableFrom(klass.get())); 746 } 747 // Resolving exceptions may load classes that reference more exceptions, iterate until no 748 // more are found 749 } while (!unresolved_exception_types.empty()); 750 751 // We walk the roots looking for classes so that we'll pick up the 752 // above classes plus any classes them depend on such super 753 // classes, interfaces, and the required ClassLinker roots. 754 class_linker->VisitClasses(RecordImageClassesVisitor, image_classes_.get()); 755 756 CHECK_NE(image_classes_->size(), 0U); 757} 758 759static void MaybeAddToImageClasses(mirror::Class* klass, CompilerDriver::DescriptorSet* image_classes) 760 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 761 while (!klass->IsObjectClass()) { 762 ClassHelper kh(klass); 763 const char* descriptor = kh.GetDescriptor(); 764 std::pair<CompilerDriver::DescriptorSet::iterator, bool> result = 765 image_classes->insert(descriptor); 766 if (result.second) { 767 VLOG(compiler) << "Adding " << descriptor << " to image classes"; 768 } else { 769 return; 770 } 771 for (size_t i = 0; i < kh.NumDirectInterfaces(); ++i) { 772 MaybeAddToImageClasses(kh.GetDirectInterface(i), image_classes); 773 } 774 if (klass->IsArrayClass()) { 775 MaybeAddToImageClasses(klass->GetComponentType(), image_classes); 776 } 777 klass = klass->GetSuperClass(); 778 } 779} 780 781void CompilerDriver::FindClinitImageClassesCallback(mirror::Object* object, void* arg) { 782 DCHECK(object != NULL); 783 DCHECK(arg != NULL); 784 CompilerDriver* compiler_driver = reinterpret_cast<CompilerDriver*>(arg); 785 MaybeAddToImageClasses(object->GetClass(), compiler_driver->image_classes_.get()); 786} 787 788void CompilerDriver::UpdateImageClasses(TimingLogger& timings) { 789 if (IsImage()) { 790 timings.NewSplit("UpdateImageClasses"); 791 792 // Update image_classes_ with classes for objects created by <clinit> methods. 793 Thread* self = Thread::Current(); 794 const char* old_cause = self->StartAssertNoThreadSuspension("ImageWriter"); 795 gc::Heap* heap = Runtime::Current()->GetHeap(); 796 // TODO: Image spaces only? 797 ScopedObjectAccess soa(Thread::Current()); 798 WriterMutexLock mu(self, *Locks::heap_bitmap_lock_); 799 heap->VisitObjects(FindClinitImageClassesCallback, this); 800 self->EndAssertNoThreadSuspension(old_cause); 801 } 802} 803 804bool CompilerDriver::CanAssumeTypeIsPresentInDexCache(const DexFile& dex_file, uint32_t type_idx) { 805 if (IsImage() && 806 IsImageClass(dex_file.StringDataByIdx(dex_file.GetTypeId(type_idx).descriptor_idx_))) { 807 if (kIsDebugBuild) { 808 ScopedObjectAccess soa(Thread::Current()); 809 mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); 810 mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); 811 CHECK(resolved_class != NULL); 812 } 813 stats_->TypeInDexCache(); 814 return true; 815 } else { 816 stats_->TypeNotInDexCache(); 817 return false; 818 } 819} 820 821bool CompilerDriver::CanAssumeStringIsPresentInDexCache(const DexFile& dex_file, 822 uint32_t string_idx) { 823 // See also Compiler::ResolveDexFile 824 825 bool result = false; 826 if (IsImage()) { 827 // We resolve all const-string strings when building for the image. 828 ScopedObjectAccess soa(Thread::Current()); 829 SirtRef<mirror::DexCache> dex_cache(soa.Self(), Runtime::Current()->GetClassLinker()->FindDexCache(dex_file)); 830 Runtime::Current()->GetClassLinker()->ResolveString(dex_file, string_idx, dex_cache); 831 result = true; 832 } 833 if (result) { 834 stats_->StringInDexCache(); 835 } else { 836 stats_->StringNotInDexCache(); 837 } 838 return result; 839} 840 841bool CompilerDriver::CanAccessTypeWithoutChecks(uint32_t referrer_idx, const DexFile& dex_file, 842 uint32_t type_idx, 843 bool* type_known_final, bool* type_known_abstract, 844 bool* equals_referrers_class) { 845 if (type_known_final != NULL) { 846 *type_known_final = false; 847 } 848 if (type_known_abstract != NULL) { 849 *type_known_abstract = false; 850 } 851 if (equals_referrers_class != NULL) { 852 *equals_referrers_class = false; 853 } 854 ScopedObjectAccess soa(Thread::Current()); 855 mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); 856 // Get type from dex cache assuming it was populated by the verifier 857 mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); 858 if (resolved_class == NULL) { 859 stats_->TypeNeedsAccessCheck(); 860 return false; // Unknown class needs access checks. 861 } 862 const DexFile::MethodId& method_id = dex_file.GetMethodId(referrer_idx); 863 if (equals_referrers_class != NULL) { 864 *equals_referrers_class = (method_id.class_idx_ == type_idx); 865 } 866 mirror::Class* referrer_class = dex_cache->GetResolvedType(method_id.class_idx_); 867 if (referrer_class == NULL) { 868 stats_->TypeNeedsAccessCheck(); 869 return false; // Incomplete referrer knowledge needs access check. 870 } 871 // Perform access check, will return true if access is ok or false if we're going to have to 872 // check this at runtime (for example for class loaders). 873 bool result = referrer_class->CanAccess(resolved_class); 874 if (result) { 875 stats_->TypeDoesntNeedAccessCheck(); 876 if (type_known_final != NULL) { 877 *type_known_final = resolved_class->IsFinal() && !resolved_class->IsArrayClass(); 878 } 879 if (type_known_abstract != NULL) { 880 *type_known_abstract = resolved_class->IsAbstract() && !resolved_class->IsArrayClass(); 881 } 882 } else { 883 stats_->TypeNeedsAccessCheck(); 884 } 885 return result; 886} 887 888bool CompilerDriver::CanAccessInstantiableTypeWithoutChecks(uint32_t referrer_idx, 889 const DexFile& dex_file, 890 uint32_t type_idx) { 891 ScopedObjectAccess soa(Thread::Current()); 892 mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); 893 // Get type from dex cache assuming it was populated by the verifier. 894 mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); 895 if (resolved_class == NULL) { 896 stats_->TypeNeedsAccessCheck(); 897 return false; // Unknown class needs access checks. 898 } 899 const DexFile::MethodId& method_id = dex_file.GetMethodId(referrer_idx); 900 mirror::Class* referrer_class = dex_cache->GetResolvedType(method_id.class_idx_); 901 if (referrer_class == NULL) { 902 stats_->TypeNeedsAccessCheck(); 903 return false; // Incomplete referrer knowledge needs access check. 904 } 905 // Perform access and instantiable checks, will return true if access is ok or false if we're 906 // going to have to check this at runtime (for example for class loaders). 907 bool result = referrer_class->CanAccess(resolved_class) && resolved_class->IsInstantiable(); 908 if (result) { 909 stats_->TypeDoesntNeedAccessCheck(); 910 } else { 911 stats_->TypeNeedsAccessCheck(); 912 } 913 return result; 914} 915 916bool CompilerDriver::CanEmbedTypeInCode(const DexFile& dex_file, uint32_t type_idx, 917 bool* is_type_initialized, bool* use_direct_type_ptr, 918 uintptr_t* direct_type_ptr) { 919 ScopedObjectAccess soa(Thread::Current()); 920 mirror::DexCache* dex_cache = Runtime::Current()->GetClassLinker()->FindDexCache(dex_file); 921 mirror::Class* resolved_class = dex_cache->GetResolvedType(type_idx); 922 if (resolved_class == nullptr) { 923 return false; 924 } 925 const bool compiling_boot = Runtime::Current()->GetHeap()->IsCompilingBoot(); 926 if (compiling_boot) { 927 // boot -> boot class pointers. 928 // True if the class is in the image at boot compiling time. 929 const bool is_image_class = IsImage() && IsImageClass( 930 dex_file.StringDataByIdx(dex_file.GetTypeId(type_idx).descriptor_idx_)); 931 // True if pc relative load works. 932 const bool support_boot_image_fixup = GetSupportBootImageFixup(); 933 if (is_image_class && support_boot_image_fixup) { 934 *is_type_initialized = resolved_class->IsInitialized(); 935 *use_direct_type_ptr = false; 936 *direct_type_ptr = 0; 937 return true; 938 } else { 939 return false; 940 } 941 } else { 942 // True if the class is in the image at app compiling time. 943 const bool class_in_image = 944 Runtime::Current()->GetHeap()->FindSpaceFromObject(resolved_class, false)->IsImageSpace(); 945 if (class_in_image) { 946 // boot -> app class pointers. 947 *is_type_initialized = resolved_class->IsInitialized(); 948 *use_direct_type_ptr = true; 949 *direct_type_ptr = reinterpret_cast<uintptr_t>(resolved_class); 950 return true; 951 } else { 952 // app -> app class pointers. 953 // Give up because app does not have an image and class 954 // isn't created at compile time. TODO: implement this 955 // if/when each app gets an image. 956 return false; 957 } 958 } 959} 960 961static mirror::Class* ComputeCompilingMethodsClass(ScopedObjectAccess& soa, 962 SirtRef<mirror::DexCache>& dex_cache, 963 const DexCompilationUnit* mUnit) 964 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 965 // The passed dex_cache is a hint, sanity check before asking the class linker that will take a 966 // lock. 967 if (dex_cache->GetDexFile() != mUnit->GetDexFile()) { 968 dex_cache.reset(mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile())); 969 } 970 SirtRef<mirror::ClassLoader> 971 class_loader(soa.Self(), soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader())); 972 const DexFile::MethodId& referrer_method_id = 973 mUnit->GetDexFile()->GetMethodId(mUnit->GetDexMethodIndex()); 974 return mUnit->GetClassLinker()->ResolveType(*mUnit->GetDexFile(), referrer_method_id.class_idx_, 975 dex_cache, class_loader); 976} 977 978static mirror::ArtField* ComputeFieldReferencedFromCompilingMethod( 979 ScopedObjectAccess& soa, const DexCompilationUnit* mUnit, uint32_t field_idx) 980 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 981 SirtRef<mirror::DexCache> dex_cache(soa.Self(), mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile())); 982 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader())); 983 return mUnit->GetClassLinker()->ResolveField(*mUnit->GetDexFile(), field_idx, dex_cache, 984 class_loader, false); 985} 986 987static mirror::ArtMethod* ComputeMethodReferencedFromCompilingMethod(ScopedObjectAccess& soa, 988 const DexCompilationUnit* mUnit, 989 uint32_t method_idx, 990 InvokeType type) 991 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 992 SirtRef<mirror::DexCache> dex_cache(soa.Self(), mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile())); 993 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader())); 994 return mUnit->GetClassLinker()->ResolveMethod(*mUnit->GetDexFile(), method_idx, dex_cache, 995 class_loader, NULL, type); 996} 997 998bool CompilerDriver::ComputeInstanceFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, 999 bool is_put, int* field_offset, bool* is_volatile) { 1000 ScopedObjectAccess soa(Thread::Current()); 1001 // Conservative defaults. 1002 *field_offset = -1; 1003 *is_volatile = true; 1004 // Try to resolve field and ignore if an Incompatible Class Change Error (ie is static). 1005 mirror::ArtField* resolved_field = ComputeFieldReferencedFromCompilingMethod(soa, mUnit, field_idx); 1006 if (resolved_field != NULL && !resolved_field->IsStatic()) { 1007 SirtRef<mirror::DexCache> dex_cache(soa.Self(), 1008 resolved_field->GetDeclaringClass()->GetDexCache()); 1009 mirror::Class* referrer_class = 1010 ComputeCompilingMethodsClass(soa, dex_cache, mUnit); 1011 if (referrer_class != NULL) { 1012 mirror::Class* fields_class = resolved_field->GetDeclaringClass(); 1013 bool access_ok = referrer_class->CanAccessResolvedField(fields_class, resolved_field, 1014 dex_cache.get(), field_idx); 1015 bool is_write_to_final_from_wrong_class = is_put && resolved_field->IsFinal() && 1016 fields_class != referrer_class; 1017 if (access_ok && !is_write_to_final_from_wrong_class) { 1018 *field_offset = resolved_field->GetOffset().Int32Value(); 1019 *is_volatile = resolved_field->IsVolatile(); 1020 stats_->ResolvedInstanceField(); 1021 return true; // Fast path. 1022 } 1023 } 1024 } 1025 // Clean up any exception left by field/type resolution 1026 if (soa.Self()->IsExceptionPending()) { 1027 soa.Self()->ClearException(); 1028 } 1029 stats_->UnresolvedInstanceField(); 1030 return false; // Incomplete knowledge needs slow path. 1031} 1032 1033bool CompilerDriver::ComputeStaticFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, 1034 bool is_put, int* field_offset, int* storage_index, 1035 bool* is_referrers_class, bool* is_volatile, 1036 bool* is_initialized) { 1037 ScopedObjectAccess soa(Thread::Current()); 1038 // Conservative defaults. 1039 *field_offset = -1; 1040 *storage_index = -1; 1041 *is_referrers_class = false; 1042 *is_volatile = true; 1043 *is_initialized = false; 1044 // Try to resolve field and ignore if an Incompatible Class Change Error (ie isn't static). 1045 mirror::ArtField* resolved_field = ComputeFieldReferencedFromCompilingMethod(soa, mUnit, field_idx); 1046 if (resolved_field != NULL && resolved_field->IsStatic()) { 1047 SirtRef<mirror::DexCache> dex_cache(soa.Self(), resolved_field->GetDeclaringClass()->GetDexCache()); 1048 mirror::Class* referrer_class = 1049 ComputeCompilingMethodsClass(soa, dex_cache, mUnit); 1050 if (referrer_class != NULL) { 1051 mirror::Class* fields_class = resolved_field->GetDeclaringClass(); 1052 if (fields_class == referrer_class) { 1053 *is_referrers_class = true; // implies no worrying about class initialization 1054 *is_initialized = true; 1055 *field_offset = resolved_field->GetOffset().Int32Value(); 1056 *is_volatile = resolved_field->IsVolatile(); 1057 stats_->ResolvedLocalStaticField(); 1058 return true; // fast path 1059 } else { 1060 bool access_ok = referrer_class->CanAccessResolvedField(fields_class, resolved_field, 1061 dex_cache.get(), field_idx); 1062 bool is_write_to_final_from_wrong_class = is_put && resolved_field->IsFinal(); 1063 if (access_ok && !is_write_to_final_from_wrong_class) { 1064 // We have the resolved field, we must make it into a index for the referrer 1065 // in its static storage (which may fail if it doesn't have a slot for it) 1066 // TODO: for images we can elide the static storage base null check 1067 // if we know there's a non-null entry in the image 1068 mirror::DexCache* dex_cache = mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile()); 1069 if (fields_class->GetDexCache() == dex_cache) { 1070 // common case where the dex cache of both the referrer and the field are the same, 1071 // no need to search the dex file 1072 *storage_index = fields_class->GetDexTypeIndex(); 1073 *field_offset = resolved_field->GetOffset().Int32Value(); 1074 *is_volatile = resolved_field->IsVolatile(); 1075 *is_initialized = fields_class->IsInitialized() && 1076 CanAssumeTypeIsPresentInDexCache(*mUnit->GetDexFile(), *storage_index); 1077 stats_->ResolvedStaticField(); 1078 return true; 1079 } 1080 // Search dex file for localized ssb index, may fail if field's class is a parent 1081 // of the class mentioned in the dex file and there is no dex cache entry. 1082 const DexFile::StringId* string_id = 1083 mUnit->GetDexFile()->FindStringId(FieldHelper(resolved_field).GetDeclaringClassDescriptor()); 1084 if (string_id != NULL) { 1085 const DexFile::TypeId* type_id = 1086 mUnit->GetDexFile()->FindTypeId(mUnit->GetDexFile()->GetIndexForStringId(*string_id)); 1087 if (type_id != NULL) { 1088 // medium path, needs check of static storage base being initialized 1089 *storage_index = mUnit->GetDexFile()->GetIndexForTypeId(*type_id); 1090 *field_offset = resolved_field->GetOffset().Int32Value(); 1091 *is_volatile = resolved_field->IsVolatile(); 1092 *is_initialized = fields_class->IsInitialized() && 1093 CanAssumeTypeIsPresentInDexCache(*mUnit->GetDexFile(), *storage_index); 1094 stats_->ResolvedStaticField(); 1095 return true; 1096 } 1097 } 1098 } 1099 } 1100 } 1101 } 1102 // Clean up any exception left by field/type resolution 1103 if (soa.Self()->IsExceptionPending()) { 1104 soa.Self()->ClearException(); 1105 } 1106 stats_->UnresolvedStaticField(); 1107 return false; // Incomplete knowledge needs slow path. 1108} 1109 1110void CompilerDriver::GetCodeAndMethodForDirectCall(InvokeType* type, InvokeType sharp_type, 1111 bool no_guarantee_of_dex_cache_entry, 1112 mirror::Class* referrer_class, 1113 mirror::ArtMethod* method, 1114 bool update_stats, 1115 MethodReference* target_method, 1116 uintptr_t* direct_code, 1117 uintptr_t* direct_method) { 1118 // For direct and static methods compute possible direct_code and direct_method values, ie 1119 // an address for the Method* being invoked and an address of the code for that Method*. 1120 // For interface calls compute a value for direct_method that is the interface method being 1121 // invoked, so this can be passed to the out-of-line runtime support code. 1122 *direct_code = 0; 1123 *direct_method = 0; 1124 bool use_dex_cache = false; 1125 const bool compiling_boot = Runtime::Current()->GetHeap()->IsCompilingBoot(); 1126 if (compiler_backend_ == kPortable) { 1127 if (sharp_type != kStatic && sharp_type != kDirect) { 1128 return; 1129 } 1130 use_dex_cache = true; 1131 } else { 1132 if (sharp_type != kStatic && sharp_type != kDirect) { 1133 return; 1134 } 1135 // TODO: support patching on all architectures. 1136 use_dex_cache = compiling_boot && !support_boot_image_fixup_; 1137 } 1138 bool method_code_in_boot = (method->GetDeclaringClass()->GetClassLoader() == nullptr); 1139 if (!use_dex_cache) { 1140 if (!method_code_in_boot) { 1141 use_dex_cache = true; 1142 } else { 1143 bool has_clinit_trampoline = 1144 method->IsStatic() && !method->GetDeclaringClass()->IsInitialized(); 1145 if (has_clinit_trampoline && (method->GetDeclaringClass() != referrer_class)) { 1146 // Ensure we run the clinit trampoline unless we are invoking a static method in the same 1147 // class. 1148 use_dex_cache = true; 1149 } 1150 } 1151 } 1152 if (update_stats && method_code_in_boot) { 1153 stats_->DirectCallsToBoot(*type); 1154 stats_->DirectMethodsToBoot(*type); 1155 } 1156 if (!use_dex_cache && compiling_boot) { 1157 MethodHelper mh(method); 1158 if (!IsImageClass(mh.GetDeclaringClassDescriptor())) { 1159 // We can only branch directly to Methods that are resolved in the DexCache. 1160 // Otherwise we won't invoke the resolution trampoline. 1161 use_dex_cache = true; 1162 } 1163 } 1164 // The method is defined not within this dex file. We need a dex cache slot within the current 1165 // dex file or direct pointers. 1166 bool must_use_direct_pointers = false; 1167 if (target_method->dex_file == method->GetDeclaringClass()->GetDexCache()->GetDexFile()) { 1168 target_method->dex_method_index = method->GetDexMethodIndex(); 1169 } else { 1170 // TODO: support patching from one dex file to another in the boot image. 1171 use_dex_cache = use_dex_cache || compiling_boot; 1172 if (no_guarantee_of_dex_cache_entry) { 1173 // See if the method is also declared in this dex cache. 1174 uint32_t dex_method_idx = MethodHelper(method).FindDexMethodIndexInOtherDexFile( 1175 *target_method->dex_file); 1176 if (dex_method_idx != DexFile::kDexNoIndex) { 1177 target_method->dex_method_index = dex_method_idx; 1178 } else { 1179 must_use_direct_pointers = true; 1180 } 1181 } 1182 } 1183 if (use_dex_cache) { 1184 if (must_use_direct_pointers) { 1185 // Fail. Test above showed the only safe dispatch was via the dex cache, however, the direct 1186 // pointers are required as the dex cache lacks an appropriate entry. 1187 VLOG(compiler) << "Dex cache devirtualization failed for: " << PrettyMethod(method); 1188 } else { 1189 *type = sharp_type; 1190 } 1191 } else { 1192 if (compiling_boot) { 1193 *type = sharp_type; 1194 *direct_method = -1; 1195 *direct_code = -1; 1196 } else { 1197 bool method_in_image = 1198 Runtime::Current()->GetHeap()->FindSpaceFromObject(method, false)->IsImageSpace(); 1199 if (method_in_image) { 1200 CHECK(!method->IsAbstract()); 1201 *type = sharp_type; 1202 *direct_method = reinterpret_cast<uintptr_t>(method); 1203 if (compiler_backend_ == kQuick) { 1204 *direct_code = reinterpret_cast<uintptr_t>(method->GetEntryPointFromQuickCompiledCode()); 1205 } else { 1206 CHECK_EQ(compiler_backend_, kPortable); 1207 *direct_code = reinterpret_cast<uintptr_t>(method->GetEntryPointFromPortableCompiledCode()); 1208 } 1209 target_method->dex_file = method->GetDeclaringClass()->GetDexCache()->GetDexFile(); 1210 target_method->dex_method_index = method->GetDexMethodIndex(); 1211 } else if (!must_use_direct_pointers) { 1212 // Set the code and rely on the dex cache for the method. 1213 *type = sharp_type; 1214 if (compiler_backend_ == kQuick) { 1215 *direct_code = reinterpret_cast<uintptr_t>(method->GetEntryPointFromQuickCompiledCode()); 1216 } else { 1217 CHECK_EQ(compiler_backend_, kPortable); 1218 *direct_code = reinterpret_cast<uintptr_t>(method->GetEntryPointFromPortableCompiledCode()); 1219 } 1220 } else { 1221 // Direct pointers were required but none were available. 1222 VLOG(compiler) << "Dex cache devirtualization failed for: " << PrettyMethod(method); 1223 } 1224 } 1225 } 1226} 1227 1228bool CompilerDriver::ComputeInvokeInfo(const DexCompilationUnit* mUnit, const uint32_t dex_pc, 1229 bool update_stats, bool enable_devirtualization, 1230 InvokeType* invoke_type, MethodReference* target_method, 1231 int* vtable_idx, uintptr_t* direct_code, 1232 uintptr_t* direct_method) { 1233 ScopedObjectAccess soa(Thread::Current()); 1234 *vtable_idx = -1; 1235 *direct_code = 0; 1236 *direct_method = 0; 1237 mirror::ArtMethod* resolved_method = 1238 ComputeMethodReferencedFromCompilingMethod(soa, mUnit, target_method->dex_method_index, 1239 *invoke_type); 1240 if (resolved_method != NULL) { 1241 if (*invoke_type == kVirtual || *invoke_type == kSuper) { 1242 *vtable_idx = resolved_method->GetMethodIndex(); 1243 } else if (*invoke_type == kInterface) { 1244 *vtable_idx = resolved_method->GetDexMethodIndex(); 1245 } 1246 // Don't try to fast-path if we don't understand the caller's class or this appears to be an 1247 // Incompatible Class Change Error. 1248 SirtRef<mirror::DexCache> dex_cache(soa.Self(), resolved_method->GetDeclaringClass()->GetDexCache()); 1249 mirror::Class* referrer_class = 1250 ComputeCompilingMethodsClass(soa, dex_cache, mUnit); 1251 bool icce = resolved_method->CheckIncompatibleClassChange(*invoke_type); 1252 if (referrer_class != NULL && !icce) { 1253 mirror::Class* methods_class = resolved_method->GetDeclaringClass(); 1254 if (referrer_class->CanAccessResolvedMethod(methods_class, resolved_method, dex_cache.get(), 1255 target_method->dex_method_index)) { 1256 const bool enableFinalBasedSharpening = enable_devirtualization; 1257 // Sharpen a virtual call into a direct call when the target is known not to have been 1258 // overridden (ie is final). 1259 bool can_sharpen_virtual_based_on_type = 1260 (*invoke_type == kVirtual) && (resolved_method->IsFinal() || methods_class->IsFinal()); 1261 // For invoke-super, ensure the vtable index will be correct to dispatch in the vtable of 1262 // the super class. 1263 bool can_sharpen_super_based_on_type = (*invoke_type == kSuper) && 1264 (referrer_class != methods_class) && referrer_class->IsSubClass(methods_class) && 1265 resolved_method->GetMethodIndex() < methods_class->GetVTable()->GetLength() && 1266 (methods_class->GetVTable()->Get(resolved_method->GetMethodIndex()) == resolved_method); 1267 1268 if (enableFinalBasedSharpening && (can_sharpen_virtual_based_on_type || 1269 can_sharpen_super_based_on_type)) { 1270 // Sharpen a virtual call into a direct call. The method_idx is into the DexCache 1271 // associated with target_method->dex_file. 1272 CHECK(target_method->dex_file == mUnit->GetDexFile()); 1273 DCHECK(dex_cache.get() == mUnit->GetClassLinker()->FindDexCache(*mUnit->GetDexFile())); 1274 CHECK(dex_cache->GetResolvedMethod(target_method->dex_method_index) == 1275 resolved_method) << PrettyMethod(resolved_method); 1276 InvokeType orig_invoke_type = *invoke_type; 1277 GetCodeAndMethodForDirectCall(invoke_type, kDirect, false, referrer_class, resolved_method, 1278 update_stats, target_method, direct_code, direct_method); 1279 if (update_stats && (*invoke_type == kDirect)) { 1280 stats_->ResolvedMethod(orig_invoke_type); 1281 stats_->VirtualMadeDirect(orig_invoke_type); 1282 } 1283 DCHECK_NE(*invoke_type, kSuper) << PrettyMethod(resolved_method); 1284 return true; 1285 } 1286 const bool enableVerifierBasedSharpening = enable_devirtualization; 1287 if (enableVerifierBasedSharpening && (*invoke_type == kVirtual || 1288 *invoke_type == kInterface)) { 1289 // Did the verifier record a more precise invoke target based on its type information? 1290 DCHECK(mUnit->GetVerifiedMethod() != nullptr); 1291 const MethodReference* devirt_map_target = 1292 mUnit->GetVerifiedMethod()->GetDevirtTarget(dex_pc); 1293 if (devirt_map_target != NULL) { 1294 SirtRef<mirror::DexCache> target_dex_cache(soa.Self(), mUnit->GetClassLinker()->FindDexCache(*devirt_map_target->dex_file)); 1295 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), soa.Decode<mirror::ClassLoader*>(mUnit->GetClassLoader())); 1296 mirror::ArtMethod* called_method = 1297 mUnit->GetClassLinker()->ResolveMethod(*devirt_map_target->dex_file, 1298 devirt_map_target->dex_method_index, 1299 target_dex_cache, class_loader, NULL, 1300 kVirtual); 1301 CHECK(called_method != NULL); 1302 CHECK(!called_method->IsAbstract()); 1303 InvokeType orig_invoke_type = *invoke_type; 1304 GetCodeAndMethodForDirectCall(invoke_type, kDirect, true, referrer_class, called_method, 1305 update_stats, target_method, direct_code, direct_method); 1306 if (update_stats && (*invoke_type == kDirect)) { 1307 stats_->ResolvedMethod(orig_invoke_type); 1308 stats_->VirtualMadeDirect(orig_invoke_type); 1309 stats_->PreciseTypeDevirtualization(); 1310 } 1311 DCHECK_NE(*invoke_type, kSuper); 1312 return true; 1313 } 1314 } 1315 if (*invoke_type == kSuper) { 1316 // Unsharpened super calls are suspicious so go slow-path. 1317 } else { 1318 // Sharpening failed so generate a regular resolved method dispatch. 1319 if (update_stats) { 1320 stats_->ResolvedMethod(*invoke_type); 1321 } 1322 GetCodeAndMethodForDirectCall(invoke_type, *invoke_type, false, referrer_class, resolved_method, 1323 update_stats, target_method, direct_code, direct_method); 1324 return true; 1325 } 1326 } 1327 } 1328 } 1329 // Clean up any exception left by method/invoke_type resolution 1330 if (soa.Self()->IsExceptionPending()) { 1331 soa.Self()->ClearException(); 1332 } 1333 if (update_stats) { 1334 stats_->UnresolvedMethod(*invoke_type); 1335 } 1336 return false; // Incomplete knowledge needs slow path. 1337} 1338 1339const VerifiedMethod* CompilerDriver::GetVerifiedMethod(const DexFile* dex_file, 1340 uint32_t method_idx) const { 1341 MethodReference ref(dex_file, method_idx); 1342 return verification_results_->GetVerifiedMethod(ref); 1343} 1344 1345bool CompilerDriver::IsSafeCast(const DexCompilationUnit* mUnit, uint32_t dex_pc) { 1346 DCHECK(mUnit->GetVerifiedMethod() != nullptr); 1347 bool result = mUnit->GetVerifiedMethod()->IsSafeCast(dex_pc); 1348 if (result) { 1349 stats_->SafeCast(); 1350 } else { 1351 stats_->NotASafeCast(); 1352 } 1353 return result; 1354} 1355 1356 1357void CompilerDriver::AddCodePatch(const DexFile* dex_file, 1358 uint16_t referrer_class_def_idx, 1359 uint32_t referrer_method_idx, 1360 InvokeType referrer_invoke_type, 1361 uint32_t target_method_idx, 1362 InvokeType target_invoke_type, 1363 size_t literal_offset) { 1364 MutexLock mu(Thread::Current(), compiled_methods_lock_); 1365 code_to_patch_.push_back(new CallPatchInformation(dex_file, 1366 referrer_class_def_idx, 1367 referrer_method_idx, 1368 referrer_invoke_type, 1369 target_method_idx, 1370 target_invoke_type, 1371 literal_offset)); 1372} 1373void CompilerDriver::AddMethodPatch(const DexFile* dex_file, 1374 uint16_t referrer_class_def_idx, 1375 uint32_t referrer_method_idx, 1376 InvokeType referrer_invoke_type, 1377 uint32_t target_method_idx, 1378 InvokeType target_invoke_type, 1379 size_t literal_offset) { 1380 MutexLock mu(Thread::Current(), compiled_methods_lock_); 1381 methods_to_patch_.push_back(new CallPatchInformation(dex_file, 1382 referrer_class_def_idx, 1383 referrer_method_idx, 1384 referrer_invoke_type, 1385 target_method_idx, 1386 target_invoke_type, 1387 literal_offset)); 1388} 1389void CompilerDriver::AddClassPatch(const DexFile* dex_file, 1390 uint16_t referrer_class_def_idx, 1391 uint32_t referrer_method_idx, 1392 uint32_t target_type_idx, 1393 size_t literal_offset) { 1394 MutexLock mu(Thread::Current(), compiled_methods_lock_); 1395 classes_to_patch_.push_back(new TypePatchInformation(dex_file, 1396 referrer_class_def_idx, 1397 referrer_method_idx, 1398 target_type_idx, 1399 literal_offset)); 1400} 1401 1402class ParallelCompilationManager { 1403 public: 1404 typedef void Callback(const ParallelCompilationManager* manager, size_t index); 1405 1406 ParallelCompilationManager(ClassLinker* class_linker, 1407 jobject class_loader, 1408 CompilerDriver* compiler, 1409 const DexFile* dex_file, 1410 ThreadPool& thread_pool) 1411 : index_(0), 1412 class_linker_(class_linker), 1413 class_loader_(class_loader), 1414 compiler_(compiler), 1415 dex_file_(dex_file), 1416 thread_pool_(&thread_pool) {} 1417 1418 ClassLinker* GetClassLinker() const { 1419 CHECK(class_linker_ != NULL); 1420 return class_linker_; 1421 } 1422 1423 jobject GetClassLoader() const { 1424 return class_loader_; 1425 } 1426 1427 CompilerDriver* GetCompiler() const { 1428 CHECK(compiler_ != NULL); 1429 return compiler_; 1430 } 1431 1432 const DexFile* GetDexFile() const { 1433 CHECK(dex_file_ != NULL); 1434 return dex_file_; 1435 } 1436 1437 void ForAll(size_t begin, size_t end, Callback callback, size_t work_units) { 1438 Thread* self = Thread::Current(); 1439 self->AssertNoPendingException(); 1440 CHECK_GT(work_units, 0U); 1441 1442 index_ = begin; 1443 for (size_t i = 0; i < work_units; ++i) { 1444 thread_pool_->AddTask(self, new ForAllClosure(this, end, callback)); 1445 } 1446 thread_pool_->StartWorkers(self); 1447 1448 // Ensure we're suspended while we're blocked waiting for the other threads to finish (worker 1449 // thread destructor's called below perform join). 1450 CHECK_NE(self->GetState(), kRunnable); 1451 1452 // Wait for all the worker threads to finish. 1453 thread_pool_->Wait(self, true, false); 1454 } 1455 1456 size_t NextIndex() { 1457 return index_.FetchAndAdd(1); 1458 } 1459 1460 private: 1461 class ForAllClosure : public Task { 1462 public: 1463 ForAllClosure(ParallelCompilationManager* manager, size_t end, Callback* callback) 1464 : manager_(manager), 1465 end_(end), 1466 callback_(callback) {} 1467 1468 virtual void Run(Thread* self) { 1469 while (true) { 1470 const size_t index = manager_->NextIndex(); 1471 if (UNLIKELY(index >= end_)) { 1472 break; 1473 } 1474 callback_(manager_, index); 1475 self->AssertNoPendingException(); 1476 } 1477 } 1478 1479 virtual void Finalize() { 1480 delete this; 1481 } 1482 1483 private: 1484 ParallelCompilationManager* const manager_; 1485 const size_t end_; 1486 Callback* const callback_; 1487 }; 1488 1489 AtomicInteger index_; 1490 ClassLinker* const class_linker_; 1491 const jobject class_loader_; 1492 CompilerDriver* const compiler_; 1493 const DexFile* const dex_file_; 1494 ThreadPool* const thread_pool_; 1495 1496 DISALLOW_COPY_AND_ASSIGN(ParallelCompilationManager); 1497}; 1498 1499// Return true if the class should be skipped during compilation. 1500// 1501// The first case where we skip is for redundant class definitions in 1502// the boot classpath. We skip all but the first definition in that case. 1503// 1504// The second case where we skip is when an app bundles classes found 1505// in the boot classpath. Since at runtime we will select the class from 1506// the boot classpath, we ignore the one from the app. 1507static bool SkipClass(ClassLinker* class_linker, jobject class_loader, const DexFile& dex_file, 1508 const DexFile::ClassDef& class_def) { 1509 const char* descriptor = dex_file.GetClassDescriptor(class_def); 1510 if (class_loader == NULL) { 1511 DexFile::ClassPathEntry pair = DexFile::FindInClassPath(descriptor, class_linker->GetBootClassPath()); 1512 CHECK(pair.second != NULL); 1513 if (pair.first != &dex_file) { 1514 LOG(WARNING) << "Skipping class " << descriptor << " from " << dex_file.GetLocation() 1515 << " previously found in " << pair.first->GetLocation(); 1516 return true; 1517 } 1518 return false; 1519 } 1520 return class_linker->IsInBootClassPath(descriptor); 1521} 1522 1523// A fast version of SkipClass above if the class pointer is available 1524// that avoids the expensive FindInClassPath search. 1525static bool SkipClass(jobject class_loader, const DexFile& dex_file, mirror::Class* klass) 1526 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1527 DCHECK(klass != NULL); 1528 const DexFile& original_dex_file = *klass->GetDexCache()->GetDexFile(); 1529 if (&dex_file != &original_dex_file) { 1530 if (class_loader == NULL) { 1531 LOG(WARNING) << "Skipping class " << PrettyDescriptor(klass) << " from " 1532 << dex_file.GetLocation() << " previously found in " 1533 << original_dex_file.GetLocation(); 1534 } 1535 return true; 1536 } 1537 return false; 1538} 1539 1540static void ResolveClassFieldsAndMethods(const ParallelCompilationManager* manager, 1541 size_t class_def_index) 1542 LOCKS_EXCLUDED(Locks::mutator_lock_) { 1543 ATRACE_CALL(); 1544 Thread* self = Thread::Current(); 1545 jobject jclass_loader = manager->GetClassLoader(); 1546 const DexFile& dex_file = *manager->GetDexFile(); 1547 ClassLinker* class_linker = manager->GetClassLinker(); 1548 1549 // If an instance field is final then we need to have a barrier on the return, static final 1550 // fields are assigned within the lock held for class initialization. Conservatively assume 1551 // constructor barriers are always required. 1552 bool requires_constructor_barrier = true; 1553 1554 // Method and Field are the worst. We can't resolve without either 1555 // context from the code use (to disambiguate virtual vs direct 1556 // method and instance vs static field) or from class 1557 // definitions. While the compiler will resolve what it can as it 1558 // needs it, here we try to resolve fields and methods used in class 1559 // definitions, since many of them many never be referenced by 1560 // generated code. 1561 const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); 1562 if (!SkipClass(class_linker, jclass_loader, dex_file, class_def)) { 1563 ScopedObjectAccess soa(self); 1564 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), soa.Decode<mirror::ClassLoader*>(jclass_loader)); 1565 SirtRef<mirror::DexCache> dex_cache(soa.Self(), class_linker->FindDexCache(dex_file)); 1566 // Resolve the class. 1567 mirror::Class* klass = class_linker->ResolveType(dex_file, class_def.class_idx_, dex_cache, 1568 class_loader); 1569 bool resolve_fields_and_methods; 1570 if (klass == NULL) { 1571 // Class couldn't be resolved, for example, super-class is in a different dex file. Don't 1572 // attempt to resolve methods and fields when there is no declaring class. 1573 CHECK(soa.Self()->IsExceptionPending()); 1574 soa.Self()->ClearException(); 1575 resolve_fields_and_methods = false; 1576 } else { 1577 resolve_fields_and_methods = manager->GetCompiler()->IsImage(); 1578 } 1579 // Note the class_data pointer advances through the headers, 1580 // static fields, instance fields, direct methods, and virtual 1581 // methods. 1582 const byte* class_data = dex_file.GetClassData(class_def); 1583 if (class_data == NULL) { 1584 // Empty class such as a marker interface. 1585 requires_constructor_barrier = false; 1586 } else { 1587 ClassDataItemIterator it(dex_file, class_data); 1588 while (it.HasNextStaticField()) { 1589 if (resolve_fields_and_methods) { 1590 mirror::ArtField* field = class_linker->ResolveField(dex_file, it.GetMemberIndex(), 1591 dex_cache, class_loader, true); 1592 if (field == NULL) { 1593 CHECK(soa.Self()->IsExceptionPending()); 1594 soa.Self()->ClearException(); 1595 } 1596 } 1597 it.Next(); 1598 } 1599 // We require a constructor barrier if there are final instance fields. 1600 requires_constructor_barrier = false; 1601 while (it.HasNextInstanceField()) { 1602 if ((it.GetMemberAccessFlags() & kAccFinal) != 0) { 1603 requires_constructor_barrier = true; 1604 } 1605 if (resolve_fields_and_methods) { 1606 mirror::ArtField* field = class_linker->ResolveField(dex_file, it.GetMemberIndex(), 1607 dex_cache, class_loader, false); 1608 if (field == NULL) { 1609 CHECK(soa.Self()->IsExceptionPending()); 1610 soa.Self()->ClearException(); 1611 } 1612 } 1613 it.Next(); 1614 } 1615 if (resolve_fields_and_methods) { 1616 while (it.HasNextDirectMethod()) { 1617 mirror::ArtMethod* method = class_linker->ResolveMethod(dex_file, it.GetMemberIndex(), 1618 dex_cache, class_loader, NULL, 1619 it.GetMethodInvokeType(class_def)); 1620 if (method == NULL) { 1621 CHECK(soa.Self()->IsExceptionPending()); 1622 soa.Self()->ClearException(); 1623 } 1624 it.Next(); 1625 } 1626 while (it.HasNextVirtualMethod()) { 1627 mirror::ArtMethod* method = class_linker->ResolveMethod(dex_file, it.GetMemberIndex(), 1628 dex_cache, class_loader, NULL, 1629 it.GetMethodInvokeType(class_def)); 1630 if (method == NULL) { 1631 CHECK(soa.Self()->IsExceptionPending()); 1632 soa.Self()->ClearException(); 1633 } 1634 it.Next(); 1635 } 1636 DCHECK(!it.HasNext()); 1637 } 1638 } 1639 } 1640 if (requires_constructor_barrier) { 1641 manager->GetCompiler()->AddRequiresConstructorBarrier(self, &dex_file, class_def_index); 1642 } 1643} 1644 1645static void ResolveType(const ParallelCompilationManager* manager, size_t type_idx) 1646 LOCKS_EXCLUDED(Locks::mutator_lock_) { 1647 // Class derived values are more complicated, they require the linker and loader. 1648 ScopedObjectAccess soa(Thread::Current()); 1649 ClassLinker* class_linker = manager->GetClassLinker(); 1650 const DexFile& dex_file = *manager->GetDexFile(); 1651 SirtRef<mirror::DexCache> dex_cache(soa.Self(), class_linker->FindDexCache(dex_file)); 1652 SirtRef<mirror::ClassLoader> class_loader( 1653 soa.Self(), soa.Decode<mirror::ClassLoader*>(manager->GetClassLoader())); 1654 mirror::Class* klass = class_linker->ResolveType(dex_file, type_idx, dex_cache, class_loader); 1655 1656 if (klass == NULL) { 1657 CHECK(soa.Self()->IsExceptionPending()); 1658 mirror::Throwable* exception = soa.Self()->GetException(NULL); 1659 VLOG(compiler) << "Exception during type resolution: " << exception->Dump(); 1660 if (strcmp("Ljava/lang/OutOfMemoryError;", 1661 ClassHelper(exception->GetClass()).GetDescriptor()) == 0) { 1662 // There's little point continuing compilation if the heap is exhausted. 1663 LOG(FATAL) << "Out of memory during type resolution for compilation"; 1664 } 1665 soa.Self()->ClearException(); 1666 } 1667} 1668 1669void CompilerDriver::ResolveDexFile(jobject class_loader, const DexFile& dex_file, 1670 ThreadPool& thread_pool, TimingLogger& timings) { 1671 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 1672 1673 // TODO: we could resolve strings here, although the string table is largely filled with class 1674 // and method names. 1675 1676 ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, thread_pool); 1677 if (IsImage()) { 1678 // For images we resolve all types, such as array, whereas for applications just those with 1679 // classdefs are resolved by ResolveClassFieldsAndMethods. 1680 timings.NewSplit("Resolve Types"); 1681 context.ForAll(0, dex_file.NumTypeIds(), ResolveType, thread_count_); 1682 } 1683 1684 timings.NewSplit("Resolve MethodsAndFields"); 1685 context.ForAll(0, dex_file.NumClassDefs(), ResolveClassFieldsAndMethods, thread_count_); 1686} 1687 1688void CompilerDriver::Verify(jobject class_loader, const std::vector<const DexFile*>& dex_files, 1689 ThreadPool& thread_pool, TimingLogger& timings) { 1690 for (size_t i = 0; i != dex_files.size(); ++i) { 1691 const DexFile* dex_file = dex_files[i]; 1692 CHECK(dex_file != NULL); 1693 VerifyDexFile(class_loader, *dex_file, thread_pool, timings); 1694 } 1695} 1696 1697static void VerifyClass(const ParallelCompilationManager* manager, size_t class_def_index) 1698 LOCKS_EXCLUDED(Locks::mutator_lock_) { 1699 ATRACE_CALL(); 1700 ScopedObjectAccess soa(Thread::Current()); 1701 const DexFile& dex_file = *manager->GetDexFile(); 1702 const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); 1703 const char* descriptor = dex_file.GetClassDescriptor(class_def); 1704 ClassLinker* class_linker = manager->GetClassLinker(); 1705 jobject jclass_loader = manager->GetClassLoader(); 1706 SirtRef<mirror::ClassLoader> class_loader( 1707 soa.Self(), soa.Decode<mirror::ClassLoader*>(jclass_loader)); 1708 SirtRef<mirror::Class> klass(soa.Self(), class_linker->FindClass(descriptor, class_loader)); 1709 if (klass.get() == nullptr) { 1710 CHECK(soa.Self()->IsExceptionPending()); 1711 soa.Self()->ClearException(); 1712 1713 /* 1714 * At compile time, we can still structurally verify the class even if FindClass fails. 1715 * This is to ensure the class is structurally sound for compilation. An unsound class 1716 * will be rejected by the verifier and later skipped during compilation in the compiler. 1717 */ 1718 SirtRef<mirror::DexCache> dex_cache(soa.Self(), class_linker->FindDexCache(dex_file)); 1719 std::string error_msg; 1720 if (verifier::MethodVerifier::VerifyClass(&dex_file, dex_cache, class_loader, &class_def, true, 1721 &error_msg) == 1722 verifier::MethodVerifier::kHardFailure) { 1723 LOG(ERROR) << "Verification failed on class " << PrettyDescriptor(descriptor) 1724 << " because: " << error_msg; 1725 } 1726 } else if (!SkipClass(jclass_loader, dex_file, klass.get())) { 1727 CHECK(klass->IsResolved()) << PrettyClass(klass.get()); 1728 class_linker->VerifyClass(klass); 1729 1730 if (klass->IsErroneous()) { 1731 // ClassLinker::VerifyClass throws, which isn't useful in the compiler. 1732 CHECK(soa.Self()->IsExceptionPending()); 1733 soa.Self()->ClearException(); 1734 } 1735 1736 CHECK(klass->IsCompileTimeVerified() || klass->IsErroneous()) 1737 << PrettyDescriptor(klass.get()) << ": state=" << klass->GetStatus(); 1738 } 1739 soa.Self()->AssertNoPendingException(); 1740} 1741 1742void CompilerDriver::VerifyDexFile(jobject class_loader, const DexFile& dex_file, 1743 ThreadPool& thread_pool, TimingLogger& timings) { 1744 timings.NewSplit("Verify Dex File"); 1745 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 1746 ParallelCompilationManager context(class_linker, class_loader, this, &dex_file, thread_pool); 1747 context.ForAll(0, dex_file.NumClassDefs(), VerifyClass, thread_count_); 1748} 1749 1750static const char* class_initializer_black_list[] = { 1751 "Landroid/app/ActivityThread;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1752 "Landroid/bluetooth/BluetoothAudioGateway;", // Calls android.bluetooth.BluetoothAudioGateway.classInitNative(). 1753 "Landroid/bluetooth/HeadsetBase;", // Calls android.bluetooth.HeadsetBase.classInitNative(). 1754 "Landroid/content/res/CompatibilityInfo;", // Requires android.util.DisplayMetrics -..-> android.os.SystemProperties.native_get_int. 1755 "Landroid/content/res/CompatibilityInfo$1;", // Requires android.util.DisplayMetrics -..-> android.os.SystemProperties.native_get_int. 1756 "Landroid/content/UriMatcher;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1757 "Landroid/database/CursorWindow;", // Requires android.util.DisplayMetrics -..-> android.os.SystemProperties.native_get_int. 1758 "Landroid/database/sqlite/SQLiteConnection;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1759 "Landroid/database/sqlite/SQLiteConnection$Operation;", // Requires SimpleDateFormat -> java.util.Locale. 1760 "Landroid/database/sqlite/SQLiteDatabaseConfiguration;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1761 "Landroid/database/sqlite/SQLiteDebug;", // Calls android.util.Log.isLoggable. 1762 "Landroid/database/sqlite/SQLiteOpenHelper;", // Calls Class.getSimpleName -> Class.isAnonymousClass -> Class.getDex. 1763 "Landroid/database/sqlite/SQLiteQueryBuilder;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1764 "Landroid/drm/DrmManagerClient;", // Calls System.loadLibrary. 1765 "Landroid/graphics/drawable/AnimatedRotateDrawable;", // Sub-class of Drawable. 1766 "Landroid/graphics/drawable/AnimationDrawable;", // Sub-class of Drawable. 1767 "Landroid/graphics/drawable/BitmapDrawable;", // Sub-class of Drawable. 1768 "Landroid/graphics/drawable/ClipDrawable;", // Sub-class of Drawable. 1769 "Landroid/graphics/drawable/ColorDrawable;", // Sub-class of Drawable. 1770 "Landroid/graphics/drawable/Drawable;", // Requires android.graphics.Rect. 1771 "Landroid/graphics/drawable/DrawableContainer;", // Sub-class of Drawable. 1772 "Landroid/graphics/drawable/GradientDrawable;", // Sub-class of Drawable. 1773 "Landroid/graphics/drawable/LayerDrawable;", // Sub-class of Drawable. 1774 "Landroid/graphics/drawable/NinePatchDrawable;", // Sub-class of Drawable. 1775 "Landroid/graphics/drawable/RotateDrawable;", // Sub-class of Drawable. 1776 "Landroid/graphics/drawable/ScaleDrawable;", // Sub-class of Drawable. 1777 "Landroid/graphics/drawable/ShapeDrawable;", // Sub-class of Drawable. 1778 "Landroid/graphics/drawable/StateListDrawable;", // Sub-class of Drawable. 1779 "Landroid/graphics/drawable/TransitionDrawable;", // Sub-class of Drawable. 1780 "Landroid/graphics/Matrix;", // Calls android.graphics.Matrix.native_create. 1781 "Landroid/graphics/Matrix$1;", // Requires Matrix. 1782 "Landroid/graphics/PixelFormat;", // Calls android.graphics.PixelFormat.nativeClassInit(). 1783 "Landroid/graphics/Rect;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1784 "Landroid/graphics/SurfaceTexture;", // Calls android.graphics.SurfaceTexture.nativeClassInit(). 1785 "Landroid/graphics/Typeface;", // Calls android.graphics.Typeface.nativeCreate. 1786 "Landroid/inputmethodservice/ExtractEditText;", // Requires android.widget.TextView. 1787 "Landroid/media/AmrInputStream;", // Calls OsConstants.initConstants. 1788 "Landroid/media/CamcorderProfile;", // Calls OsConstants.initConstants. 1789 "Landroid/media/CameraProfile;", // Calls System.loadLibrary. 1790 "Landroid/media/DecoderCapabilities;", // Calls System.loadLibrary. 1791 "Landroid/media/EncoderCapabilities;", // Calls OsConstants.initConstants. 1792 "Landroid/media/ExifInterface;", // Calls OsConstants.initConstants. 1793 "Landroid/media/MediaCodec;", // Calls OsConstants.initConstants. 1794 "Landroid/media/MediaCodecList;", // Calls OsConstants.initConstants. 1795 "Landroid/media/MediaCrypto;", // Calls OsConstants.initConstants. 1796 "Landroid/media/MediaDrm;", // Calls OsConstants.initConstants. 1797 "Landroid/media/MediaExtractor;", // Calls OsConstants.initConstants. 1798 "Landroid/media/MediaFile;", // Requires DecoderCapabilities. 1799 "Landroid/media/MediaMetadataRetriever;", // Calls OsConstants.initConstants. 1800 "Landroid/media/MediaMuxer;", // Calls OsConstants.initConstants. 1801 "Landroid/media/MediaPlayer;", // Calls System.loadLibrary. 1802 "Landroid/media/MediaRecorder;", // Calls System.loadLibrary. 1803 "Landroid/media/MediaScanner;", // Calls System.loadLibrary. 1804 "Landroid/media/ResampleInputStream;", // Calls OsConstants.initConstants. 1805 "Landroid/media/SoundPool;", // Calls OsConstants.initConstants. 1806 "Landroid/media/videoeditor/MediaArtistNativeHelper;", // Calls OsConstants.initConstants. 1807 "Landroid/media/videoeditor/VideoEditorProfile;", // Calls OsConstants.initConstants. 1808 "Landroid/mtp/MtpDatabase;", // Calls OsConstants.initConstants. 1809 "Landroid/mtp/MtpDevice;", // Calls OsConstants.initConstants. 1810 "Landroid/mtp/MtpServer;", // Calls OsConstants.initConstants. 1811 "Landroid/net/NetworkInfo;", // Calls java.util.EnumMap.<init> -> java.lang.Enum.getSharedConstants -> System.identityHashCode. 1812 "Landroid/net/Proxy;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1813 "Landroid/net/SSLCertificateSocketFactory;", // Requires javax.net.ssl.HttpsURLConnection. 1814 "Landroid/net/Uri$AbstractHierarchicalUri;", // Requires Uri. 1815 "Landroid/net/Uri$HierarchicalUri;", // Requires Uri. 1816 "Landroid/net/Uri$OpaqueUri;", // Requires Uri. 1817 "Landroid/net/Uri$StringUri;", // Requires Uri. 1818 "Landroid/net/Uri;", // Calls Class.getSimpleName -> Class.isAnonymousClass -> Class.getDex. 1819 "Landroid/net/WebAddress;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1820 "Landroid/net/wifi/WifiNative;", // Calls new LocalLog -> new Time -> TimeZone -> Pattern.compile. 1821 "Landroid/nfc/NdefRecord;", // Calls String.getBytes -> java.nio.charset.Charset. 1822 "Landroid/opengl/EGL14;", // Calls android.opengl.EGL14._nativeClassInit. 1823 "Landroid/opengl/GLES10;", // Calls android.opengl.GLES10._nativeClassInit. 1824 "Landroid/opengl/GLES10Ext;", // Calls android.opengl.GLES10Ext._nativeClassInit. 1825 "Landroid/opengl/GLES11;", // Requires GLES10. 1826 "Landroid/opengl/GLES11Ext;", // Calls android.opengl.GLES11Ext._nativeClassInit. 1827 "Landroid/opengl/GLES20;", // Calls android.opengl.GLES20._nativeClassInit. 1828 "Landroid/opengl/GLUtils;", // Calls android.opengl.GLUtils.nativeClassInit. 1829 "Landroid/os/Build;", // Calls -..-> android.os.SystemProperties.native_get. 1830 "Landroid/os/Build$VERSION;", // Requires Build. 1831 "Landroid/os/Bundle;", // Calls android.os.Parcel.obtain -..> Parcel.nativeCreate. 1832 "Landroid/os/Debug;", // Requires android.os.Environment. 1833 "Landroid/os/Environment;", // Calls System.getenv. 1834 "Landroid/os/FileUtils;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1835 "Landroid/os/StrictMode;", // Calls android.util.Log.isLoggable. 1836 "Landroid/os/StrictMode$VmPolicy;", // Requires StrictMode. 1837 "Landroid/os/Trace;", // Calls android.os.Trace.nativeGetEnabledTags. 1838 "Landroid/os/UEventObserver;", // Calls Class.getSimpleName -> Class.isAnonymousClass -> Class.getDex. 1839 "Landroid/provider/ContactsContract;", // Calls OsConstants.initConstants. 1840 "Landroid/provider/Settings$Global;", // Calls OsConstants.initConstants. 1841 "Landroid/provider/Settings$Secure;", // Requires android.net.Uri. 1842 "Landroid/provider/Settings$System;", // Requires android.net.Uri. 1843 "Landroid/renderscript/RenderScript;", // Calls System.loadLibrary. 1844 "Landroid/server/BluetoothService;", // Calls android.server.BluetoothService.classInitNative. 1845 "Landroid/server/BluetoothEventLoop;", // Calls android.server.BluetoothEventLoop.classInitNative. 1846 "Landroid/telephony/PhoneNumberUtils;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1847 "Landroid/telephony/TelephonyManager;", // Calls OsConstants.initConstants. 1848 "Landroid/text/AutoText;", // Requires android.util.DisplayMetrics -..-> android.os.SystemProperties.native_get_int. 1849 "Landroid/text/Layout;", // Calls com.android.internal.util.ArrayUtils.emptyArray -> System.identityHashCode. 1850 "Landroid/text/BoringLayout;", // Requires Layout. 1851 "Landroid/text/DynamicLayout;", // Requires Layout. 1852 "Landroid/text/Html$HtmlParser;", // Calls -..-> String.toLowerCase -> java.util.Locale. 1853 "Landroid/text/StaticLayout;", // Requires Layout. 1854 "Landroid/text/TextUtils;", // Requires android.util.DisplayMetrics. 1855 "Landroid/util/DisplayMetrics;", // Calls SystemProperties.native_get_int. 1856 "Landroid/util/Patterns;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1857 "Landroid/view/Choreographer;", // Calls SystemProperties.native_get_boolean. 1858 "Landroid/util/Patterns;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1859 "Landroid/view/GLES20Canvas;", // Calls GLES20Canvas.nIsAvailable(). 1860 "Landroid/view/GLES20RecordingCanvas;", // Requires android.view.GLES20Canvas. 1861 "Landroid/view/GestureDetector;", // Calls android.view.GLES20Canvas.nIsAvailable. 1862 "Landroid/view/HardwareRenderer$Gl20Renderer;", // Requires SystemProperties.native_get. 1863 "Landroid/view/HardwareRenderer$GlRenderer;", // Requires SystemProperties.native_get. 1864 "Landroid/view/InputEventConsistencyVerifier;", // Requires android.os.Build. 1865 "Landroid/view/Surface;", // Requires SystemProperties.native_get. 1866 "Landroid/view/SurfaceControl;", // Calls OsConstants.initConstants. 1867 "Landroid/view/animation/AlphaAnimation;", // Requires Animation. 1868 "Landroid/view/animation/Animation;", // Calls SystemProperties.native_get_boolean. 1869 "Landroid/view/animation/AnimationSet;", // Calls OsConstants.initConstants. 1870 "Landroid/view/textservice/SpellCheckerSubtype;", // Calls Class.getDex(). 1871 "Landroid/webkit/JniUtil;", // Calls System.loadLibrary. 1872 "Landroid/webkit/PluginManager;", // // Calls OsConstants.initConstants. 1873 "Landroid/webkit/WebViewCore;", // Calls System.loadLibrary. 1874 "Landroid/webkit/WebViewFactory;", // Calls -..-> android.os.SystemProperties.native_get. 1875 "Landroid/webkit/WebViewFactory$Preloader;", // Calls to Class.forName. 1876 "Landroid/webkit/WebViewInputDispatcher;", // Calls Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1877 "Landroid/webkit/URLUtil;", // Calls Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1878 "Landroid/widget/AutoCompleteTextView;", // Requires TextView. 1879 "Landroid/widget/Button;", // Requires TextView. 1880 "Landroid/widget/CheckBox;", // Requires TextView. 1881 "Landroid/widget/CheckedTextView;", // Requires TextView. 1882 "Landroid/widget/CompoundButton;", // Requires TextView. 1883 "Landroid/widget/EditText;", // Requires TextView. 1884 "Landroid/widget/NumberPicker;", // Requires java.util.Locale. 1885 "Landroid/widget/ScrollBarDrawable;", // Sub-class of Drawable. 1886 "Landroid/widget/SearchView$SearchAutoComplete;", // Requires TextView. 1887 "Landroid/widget/Switch;", // Requires TextView. 1888 "Landroid/widget/TextView;", // Calls Paint.<init> -> Paint.native_init. 1889 "Lcom/android/i18n/phonenumbers/AsYouTypeFormatter;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1890 "Lcom/android/i18n/phonenumbers/MetadataManager;", // Calls OsConstants.initConstants. 1891 "Lcom/android/i18n/phonenumbers/PhoneNumberMatcher;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1892 "Lcom/android/i18n/phonenumbers/PhoneNumberUtil;", // Requires java.util.logging.LogManager. 1893 "Lcom/android/i18n/phonenumbers/geocoding/AreaCodeMap;", // Calls OsConstants.initConstants. 1894 "Lcom/android/i18n/phonenumbers/geocoding/PhoneNumberOfflineGeocoder;", // Calls OsConstants.initConstants. 1895 "Lcom/android/internal/os/SamplingProfilerIntegration;", // Calls SystemProperties.native_get_int. 1896 "Lcom/android/internal/policy/impl/PhoneWindow;", // Calls android.os.Binder.init. 1897 "Lcom/android/internal/view/menu/ActionMenuItemView;", // Requires TextView. 1898 "Lcom/android/internal/widget/DialogTitle;", // Requires TextView. 1899 "Lcom/android/org/bouncycastle/asn1/StreamUtil;", // Calls Runtime.getRuntime().maxMemory(). 1900 "Lcom/android/org/bouncycastle/asn1/pkcs/MacData;", // Calls native ... -> java.math.NativeBN.BN_new(). 1901 "Lcom/android/org/bouncycastle/asn1/pkcs/RSASSAPSSparams;", // Calls native ... -> java.math.NativeBN.BN_new(). 1902 "Lcom/android/org/bouncycastle/asn1/cms/SignedData;", // Calls native ... -> java.math.NativeBN.BN_new(). 1903 "Lcom/android/org/bouncycastle/asn1/x509/GeneralSubtree;", // Calls native ... -> java.math.NativeBN.BN_new(). 1904 "Lcom/android/org/bouncycastle/asn1/x9/X9ECParameters;", // Calls native ... -> java.math.NativeBN.BN_new(). 1905 "Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$MD5;", // Requires com.android.org.conscrypt.NativeCrypto. 1906 "Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$SHA1;", // Requires com.android.org.conscrypt.NativeCrypto. 1907 "Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$SHA256;", // Requires com.android.org.conscrypt.NativeCrypto. 1908 "Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$SHA384;", // Requires com.android.org.conscrypt.NativeCrypto. 1909 "Lcom/android/org/bouncycastle/crypto/digests/OpenSSLDigest$SHA512;", // Requires com.android.org.conscrypt.NativeCrypto. 1910 "Lcom/android/org/bouncycastle/crypto/engines/RSABlindedEngine;", // Calls native ... -> java.math.NativeBN.BN_new(). 1911 "Lcom/android/org/bouncycastle/crypto/generators/DHKeyGeneratorHelper;", // Calls native ... -> java.math.NativeBN.BN_new(). 1912 "Lcom/android/org/bouncycastle/crypto/generators/DHParametersGenerator;", // Calls native ... -> java.math.NativeBN.BN_new(). 1913 "Lcom/android/org/bouncycastle/crypto/generators/DHParametersHelper;", // Calls System.getenv -> OsConstants.initConstants. 1914 "Lcom/android/org/bouncycastle/crypto/generators/DSAKeyPairGenerator;", // Calls native ... -> java.math.NativeBN.BN_new(). 1915 "Lcom/android/org/bouncycastle/crypto/generators/DSAParametersGenerator;", // Calls native ... -> java.math.NativeBN.BN_new(). 1916 "Lcom/android/org/bouncycastle/crypto/generators/RSAKeyPairGenerator;", // Calls native ... -> java.math.NativeBN.BN_new(). 1917 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;", // Calls OsConstants.initConstants. 1918 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/dsa/KeyPairGeneratorSpi;", // Calls OsConstants.initConstants. 1919 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$EC;", // Calls OsConstants.initConstants. 1920 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$ECDH;", // Calls OsConstants.initConstants. 1921 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$ECDHC;", // Calls OsConstants.initConstants. 1922 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$ECDSA;", // Calls OsConstants.initConstants. 1923 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi$ECMQV;", // Calls OsConstants.initConstants. 1924 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyPairGeneratorSpi;", // Calls OsConstants.initConstants. 1925 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/rsa/BCRSAPrivateCrtKey;", // Calls native ... -> java.math.NativeBN.BN_new(). 1926 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/rsa/BCRSAPrivateKey;", // Calls native ... -> java.math.NativeBN.BN_new(). 1927 "Lcom/android/org/bouncycastle/jcajce/provider/asymmetric/rsa/KeyPairGeneratorSpi;", // Calls OsConstants.initConstants. 1928 "Lcom/android/org/bouncycastle/jcajce/provider/keystore/pkcs12/PKCS12KeyStoreSpi$BCPKCS12KeyStore;", // Calls Thread.currentThread. 1929 "Lcom/android/org/bouncycastle/jcajce/provider/keystore/pkcs12/PKCS12KeyStoreSpi;", // Calls Thread.currentThread. 1930 "Lcom/android/org/bouncycastle/jce/PKCS10CertificationRequest;", // Calls native ... -> java.math.NativeBN.BN_new(). 1931 "Lcom/android/org/bouncycastle/jce/provider/CertBlacklist;", // Calls System.getenv -> OsConstants.initConstants. 1932 "Lcom/android/org/bouncycastle/jce/provider/JCERSAPrivateCrtKey;", // Calls native ... -> java.math.NativeBN.BN_new(). 1933 "Lcom/android/org/bouncycastle/jce/provider/JCERSAPrivateKey;", // Calls native ... -> java.math.NativeBN.BN_new(). 1934 "Lcom/android/org/bouncycastle/jce/provider/PKIXCertPathValidatorSpi;", // Calls System.getenv -> OsConstants.initConstants. 1935 "Lcom/android/org/bouncycastle/math/ec/ECConstants;", // Calls native ... -> java.math.NativeBN.BN_new(). 1936 "Lcom/android/org/bouncycastle/math/ec/Tnaf;", // Calls native ... -> java.math.NativeBN.BN_new(). 1937 "Lcom/android/org/bouncycastle/util/BigIntegers;", // Calls native ... -> java.math.NativeBN.BN_new(). 1938 "Lcom/android/org/bouncycastle/x509/X509Util;", // Calls native ... -> java.math.NativeBN.BN_new(). 1939 "Lcom/android/org/conscrypt/CipherSuite;", // Calls OsConstants.initConstants. 1940 "Lcom/android/org/conscrypt/FileClientSessionCache$CacheFile;", // Calls OsConstants.initConstants. 1941 "Lcom/android/org/conscrypt/HandshakeIODataStream;", // Calls OsConstants.initConstants. 1942 "Lcom/android/org/conscrypt/Logger;", // Calls OsConstants.initConstants. 1943 "Lcom/android/org/conscrypt/NativeCrypto;", // Calls native NativeCrypto.clinit(). 1944 "Lcom/android/org/conscrypt/OpenSSLECKeyPairGenerator;", // Calls OsConstants.initConstants. 1945 "Lcom/android/org/conscrypt/OpenSSLEngine;", // Requires com.android.org.conscrypt.NativeCrypto. 1946 "Lcom/android/org/conscrypt/OpenSSLMac$HmacMD5;", // Calls native NativeCrypto.clinit(). 1947 "Lcom/android/org/conscrypt/OpenSSLMac$HmacSHA1;", // Calls native NativeCrypto.clinit(). 1948 "Lcom/android/org/conscrypt/OpenSSLMac$HmacSHA256;", // Calls native NativeCrypto.clinit(). 1949 "Lcom/android/org/conscrypt/OpenSSLMac$HmacSHA384;", // Calls native NativeCrypto.clinit(). 1950 "Lcom/android/org/conscrypt/OpenSSLMac$HmacSHA512;", // Calls native NativeCrypto.clinit(). 1951 "Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$MD5;", // Requires com.android.org.conscrypt.NativeCrypto. 1952 "Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$SHA1;", // Requires com.android.org.conscrypt.NativeCrypto. 1953 "Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$SHA256;", // Requires com.android.org.conscrypt.NativeCrypto. 1954 "Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$SHA384;", // Requires com.android.org.conscrypt.NativeCrypto. 1955 "Lcom/android/org/conscrypt/OpenSSLMessageDigestJDK$SHA512;", // Requires com.android.org.conscrypt.NativeCrypto. 1956 "Lcom/android/org/conscrypt/OpenSSLX509CertPath;", // Calls OsConstants.initConstants. 1957 "Lcom/android/org/conscrypt/OpenSSLX509CertificateFactory;", // Calls OsConstants.initConstants. 1958 "Lcom/android/org/conscrypt/PRF;", // Calls OsConstants.initConstants. 1959 "Lcom/android/org/conscrypt/SSLSessionImpl;", // Calls OsConstants.initConstants. 1960 "Lcom/android/org/conscrypt/TrustedCertificateStore;", // Calls System.getenv -> OsConstants.initConstants. 1961 "Lcom/android/okhttp/ConnectionPool;", // Calls OsConstants.initConstants. 1962 "Lcom/android/okhttp/OkHttpClient;", // Calls OsConstants.initConstants. 1963 "Lcom/android/okhttp/internal/DiskLruCache;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1964 "Lcom/android/okhttp/internal/Util;", // Calls OsConstants.initConstants. 1965 "Lcom/android/okhttp/internal/http/HttpsURLConnectionImpl;", // Calls VMClassLoader.getBootClassPathSize. 1966 "Lcom/android/okhttp/internal/spdy/SpdyConnection;", // Calls OsConstants.initConstants. 1967 "Lcom/android/okhttp/internal/spdy/SpdyReader;", // Calls OsConstants.initConstants. 1968 "Lcom/android/okhttp/internal/tls/OkHostnameVerifier;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 1969 "Lcom/google/android/gles_jni/EGLContextImpl;", // Calls com.google.android.gles_jni.EGLImpl._nativeClassInit. 1970 "Lcom/google/android/gles_jni/EGLImpl;", // Calls com.google.android.gles_jni.EGLImpl._nativeClassInit. 1971 "Lcom/google/android/gles_jni/GLImpl;", // Calls com.google.android.gles_jni.GLImpl._nativeClassInit. 1972 "Lgov/nist/core/GenericObject;", // Calls OsConstants.initConstants. 1973 "Lgov/nist/core/Host;", // Calls OsConstants.initConstants. 1974 "Lgov/nist/core/HostPort;", // Calls OsConstants.initConstants. 1975 "Lgov/nist/core/NameValue;", // Calls OsConstants.initConstants. 1976 "Lgov/nist/core/net/DefaultNetworkLayer;", // Calls OsConstants.initConstants. 1977 "Lgov/nist/javax/sip/Utils;", // Calls OsConstants.initConstants. 1978 "Lgov/nist/javax/sip/address/AddressImpl;", // Calls OsConstants.initConstants. 1979 "Lgov/nist/javax/sip/address/Authority;", // Calls OsConstants.initConstants. 1980 "Lgov/nist/javax/sip/address/GenericURI;", // Calls OsConstants.initConstants. 1981 "Lgov/nist/javax/sip/address/NetObject;", // Calls OsConstants.initConstants. 1982 "Lgov/nist/javax/sip/address/SipUri;", // Calls OsConstants.initConstants. 1983 "Lgov/nist/javax/sip/address/TelephoneNumber;", // Calls OsConstants.initConstants. 1984 "Lgov/nist/javax/sip/address/UserInfo;", // Calls OsConstants.initConstants. 1985 "Lgov/nist/javax/sip/header/Accept;", // Calls OsConstants.initConstants. 1986 "Lgov/nist/javax/sip/header/AcceptEncoding;", // Calls OsConstants.initConstants. 1987 "Lgov/nist/javax/sip/header/AcceptLanguage;", // Calls OsConstants.initConstants. 1988 "Lgov/nist/javax/sip/header/AddressParametersHeader;", // Calls OsConstants.initConstants. 1989 "Lgov/nist/javax/sip/header/AlertInfoList;", // Calls OsConstants.initConstants. 1990 "Lgov/nist/javax/sip/header/AllowEvents;", // Calls OsConstants.initConstants. 1991 "Lgov/nist/javax/sip/header/AllowEventsList;", // Calls OsConstants.initConstants. 1992 "Lgov/nist/javax/sip/header/AuthenticationInfo;", // Calls OsConstants.initConstants. 1993 "Lgov/nist/javax/sip/header/Authorization;", // Calls OsConstants.initConstants. 1994 "Lgov/nist/javax/sip/header/CSeq;", // Calls OsConstants.initConstants. 1995 "Lgov/nist/javax/sip/header/CallIdentifier;", // Calls OsConstants.initConstants. 1996 "Lgov/nist/javax/sip/header/Challenge;", // Calls OsConstants.initConstants. 1997 "Lgov/nist/javax/sip/header/ContactList;", // Calls OsConstants.initConstants. 1998 "Lgov/nist/javax/sip/header/ContentEncoding;", // Calls OsConstants.initConstants. 1999 "Lgov/nist/javax/sip/header/ContentEncodingList;", // Calls OsConstants.initConstants. 2000 "Lgov/nist/javax/sip/header/ContentLanguageList;", // Calls OsConstants.initConstants. 2001 "Lgov/nist/javax/sip/header/ContentType;", // Calls OsConstants.initConstants. 2002 "Lgov/nist/javax/sip/header/Credentials;", // Calls OsConstants.initConstants. 2003 "Lgov/nist/javax/sip/header/ErrorInfoList;", // Calls OsConstants.initConstants. 2004 "Lgov/nist/javax/sip/header/Expires;", // Calls OsConstants.initConstants. 2005 "Lgov/nist/javax/sip/header/From;", // Calls OsConstants.initConstants. 2006 "Lgov/nist/javax/sip/header/MimeVersion;", // Calls OsConstants.initConstants. 2007 "Lgov/nist/javax/sip/header/NameMap;", // Calls OsConstants.initConstants. 2008 "Lgov/nist/javax/sip/header/Priority;", // Calls OsConstants.initConstants. 2009 "Lgov/nist/javax/sip/header/Protocol;", // Calls OsConstants.initConstants. 2010 "Lgov/nist/javax/sip/header/ProxyAuthenticate;", // Calls OsConstants.initConstants. 2011 "Lgov/nist/javax/sip/header/ProxyAuthenticateList;", // Calls OsConstants.initConstants. 2012 "Lgov/nist/javax/sip/header/ProxyAuthorizationList;", // Calls OsConstants.initConstants. 2013 "Lgov/nist/javax/sip/header/ProxyRequire;", // Calls OsConstants.initConstants. 2014 "Lgov/nist/javax/sip/header/ProxyRequireList;", // Calls OsConstants.initConstants. 2015 "Lgov/nist/javax/sip/header/RSeq;", // Calls OsConstants.initConstants. 2016 "Lgov/nist/javax/sip/header/RecordRoute;", // Calls OsConstants.initConstants. 2017 "Lgov/nist/javax/sip/header/ReferTo;", // Calls OsConstants.initConstants. 2018 "Lgov/nist/javax/sip/header/RequestLine;", // Calls OsConstants.initConstants. 2019 "Lgov/nist/javax/sip/header/Require;", // Calls OsConstants.initConstants. 2020 "Lgov/nist/javax/sip/header/RetryAfter;", // Calls OsConstants.initConstants. 2021 "Lgov/nist/javax/sip/header/SIPETag;", // Calls OsConstants.initConstants. 2022 "Lgov/nist/javax/sip/header/SIPHeader;", // Calls OsConstants.initConstants. 2023 "Lgov/nist/javax/sip/header/SIPHeaderNamesCache;", // Calls OsConstants.initConstants. 2024 "Lgov/nist/javax/sip/header/StatusLine;", // Calls OsConstants.initConstants. 2025 "Lgov/nist/javax/sip/header/SubscriptionState;", // Calls OsConstants.initConstants. 2026 "Lgov/nist/javax/sip/header/TimeStamp;", // Calls OsConstants.initConstants. 2027 "Lgov/nist/javax/sip/header/UserAgent;", // Calls OsConstants.initConstants. 2028 "Lgov/nist/javax/sip/header/Unsupported;", // Calls OsConstants.initConstants. 2029 "Lgov/nist/javax/sip/header/Warning;", // Calls OsConstants.initConstants. 2030 "Lgov/nist/javax/sip/header/ViaList;", // Calls OsConstants.initConstants. 2031 "Lgov/nist/javax/sip/header/extensions/Join;", // Calls OsConstants.initConstants. 2032 "Lgov/nist/javax/sip/header/extensions/References;", // Calls OsConstants.initConstants. 2033 "Lgov/nist/javax/sip/header/extensions/Replaces;", // Calls OsConstants.initConstants. 2034 "Lgov/nist/javax/sip/header/ims/PAccessNetworkInfo;", // Calls OsConstants.initConstants. 2035 "Lgov/nist/javax/sip/header/ims/PAssertedIdentity;", // Calls OsConstants.initConstants. 2036 "Lgov/nist/javax/sip/header/ims/PAssertedIdentityList;", // Calls OsConstants.initConstants. 2037 "Lgov/nist/javax/sip/header/ims/PAssociatedURI;", // Calls OsConstants.initConstants. 2038 "Lgov/nist/javax/sip/header/ims/PCalledPartyID;", // Calls OsConstants.initConstants. 2039 "Lgov/nist/javax/sip/header/ims/PChargingVector;", // Calls OsConstants.initConstants. 2040 "Lgov/nist/javax/sip/header/ims/PPreferredIdentity;", // Calls OsConstants.initConstants. 2041 "Lgov/nist/javax/sip/header/ims/PVisitedNetworkIDList;", // Calls OsConstants.initConstants. 2042 "Lgov/nist/javax/sip/header/ims/PathList;", // Calls OsConstants.initConstants. 2043 "Lgov/nist/javax/sip/header/ims/SecurityAgree;", // Calls OsConstants.initConstants. 2044 "Lgov/nist/javax/sip/header/ims/SecurityClient;", // Calls OsConstants.initConstants. 2045 "Lgov/nist/javax/sip/header/ims/ServiceRoute;", // Calls OsConstants.initConstants. 2046 "Ljava/io/Console;", // Has FileDescriptor(s). 2047 "Ljava/io/File;", // Calls to Random.<init> -> System.currentTimeMillis -> OsConstants.initConstants. 2048 "Ljava/io/FileDescriptor;", // Requires libcore.io.OsConstants. 2049 "Ljava/io/ObjectInputStream;", // Requires java.lang.ClassLoader$SystemClassLoader. 2050 "Ljava/io/ObjectStreamClass;", // Calls to Class.forName -> java.io.FileDescriptor. 2051 "Ljava/io/ObjectStreamConstants;", // Instance of non-image class SerializablePermission. 2052 "Ljava/lang/ClassLoader$SystemClassLoader;", // Calls System.getProperty -> OsConstants.initConstants. 2053 "Ljava/lang/HexStringParser;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 2054 "Ljava/lang/ProcessManager;", // Calls Thread.currentThread. 2055 "Ljava/lang/Runtime;", // Calls System.getProperty -> OsConstants.initConstants. 2056 "Ljava/lang/System;", // Calls OsConstants.initConstants. 2057 "Ljava/math/BigDecimal;", // Calls native ... -> java.math.NativeBN.BN_new(). 2058 "Ljava/math/BigInteger;", // Calls native ... -> java.math.NativeBN.BN_new(). 2059 "Ljava/math/Primality;", // Calls native ... -> java.math.NativeBN.BN_new(). 2060 "Ljava/math/Multiplication;", // Calls native ... -> java.math.NativeBN.BN_new(). 2061 "Ljava/net/InetAddress;", // Requires libcore.io.OsConstants. 2062 "Ljava/net/Inet4Address;", // Sub-class of InetAddress. 2063 "Ljava/net/Inet6Address;", // Sub-class of InetAddress. 2064 "Ljava/net/InetUnixAddress;", // Sub-class of InetAddress. 2065 "Ljava/net/NetworkInterface;", // Calls to Random.<init> -> System.currentTimeMillis -> OsConstants.initConstants. 2066 "Ljava/nio/charset/Charset;", // Calls Charset.getDefaultCharset -> System.getProperty -> OsConstants.initConstants. 2067 "Ljava/nio/charset/CharsetICU;", // Sub-class of Charset. 2068 "Ljava/nio/charset/Charsets;", // Calls Charset.forName. 2069 "Ljava/nio/charset/StandardCharsets;", // Calls OsConstants.initConstants. 2070 "Ljava/security/AlgorithmParameterGenerator;", // Calls OsConstants.initConstants. 2071 "Ljava/security/KeyPairGenerator$KeyPairGeneratorImpl;", // Calls OsConstants.initConstants. 2072 "Ljava/security/KeyPairGenerator;", // Calls OsConstants.initConstants. 2073 "Ljava/security/Security;", // Tries to do disk IO for "security.properties". 2074 "Ljava/security/spec/RSAKeyGenParameterSpec;", // java.math.NativeBN.BN_new() 2075 "Ljava/sql/Date;", // Calls OsConstants.initConstants. 2076 "Ljava/sql/DriverManager;", // Calls OsConstants.initConstants. 2077 "Ljava/sql/Time;", // Calls OsConstants.initConstants. 2078 "Ljava/sql/Timestamp;", // Calls OsConstants.initConstants. 2079 "Ljava/util/Date;", // Calls Date.<init> -> System.currentTimeMillis -> OsConstants.initConstants. 2080 "Ljava/util/ListResourceBundle;", // Calls OsConstants.initConstants. 2081 "Ljava/util/Locale;", // Calls System.getProperty -> OsConstants.initConstants. 2082 "Ljava/util/PropertyResourceBundle;", // Calls OsConstants.initConstants. 2083 "Ljava/util/ResourceBundle;", // Calls OsConstants.initConstants. 2084 "Ljava/util/ResourceBundle$MissingBundle;", // Calls OsConstants.initConstants. 2085 "Ljava/util/Scanner;", // regex.Pattern.compileImpl. 2086 "Ljava/util/SimpleTimeZone;", // Sub-class of TimeZone. 2087 "Ljava/util/TimeZone;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 2088 "Ljava/util/concurrent/ConcurrentHashMap;", // Calls Runtime.getRuntime().availableProcessors(). 2089 "Ljava/util/concurrent/ConcurrentHashMap$Segment;", // Calls Runtime.getRuntime().availableProcessors(). 2090 "Ljava/util/concurrent/ConcurrentSkipListMap;", // Calls Random() -> OsConstants.initConstants. 2091 "Ljava/util/concurrent/Exchanger;", // Calls Runtime.getRuntime().availableProcessors(). 2092 "Ljava/util/concurrent/ForkJoinPool;", // Makes a thread pool ..-> calls OsConstants.initConstants. 2093 "Ljava/util/concurrent/LinkedTransferQueue;", // Calls Runtime.getRuntime().availableProcessors(). 2094 "Ljava/util/concurrent/Phaser;", // Calls Runtime.getRuntime().availableProcessors(). 2095 "Ljava/util/concurrent/ScheduledThreadPoolExecutor;", // Calls AtomicLong.VMSupportsCS8() 2096 "Ljava/util/concurrent/SynchronousQueue;", // Calls Runtime.getRuntime().availableProcessors(). 2097 "Ljava/util/concurrent/atomic/AtomicLong;", // Calls AtomicLong.VMSupportsCS8() 2098 "Ljava/util/logging/LogManager;", // Calls System.getProperty -> OsConstants.initConstants. 2099 "Ljava/util/prefs/AbstractPreferences;", // Calls OsConstants.initConstants. 2100 "Ljava/util/prefs/FilePreferencesImpl;", // Calls OsConstants.initConstants. 2101 "Ljava/util/prefs/FilePreferencesFactoryImpl;", // Calls OsConstants.initConstants. 2102 "Ljava/util/prefs/Preferences;", // Calls OsConstants.initConstants. 2103 "Ljavax/crypto/KeyAgreement;", // Calls OsConstants.initConstants. 2104 "Ljavax/crypto/KeyGenerator;", // Calls OsConstants.initConstants. 2105 "Ljavax/security/cert/X509Certificate;", // Calls VMClassLoader.getBootClassPathSize. 2106 "Ljavax/security/cert/X509Certificate$1;", // Calls VMClassLoader.getBootClassPathSize. 2107 "Ljavax/microedition/khronos/egl/EGL10;", // Requires EGLContext. 2108 "Ljavax/microedition/khronos/egl/EGLContext;", // Requires com.google.android.gles_jni.EGLImpl. 2109 "Ljavax/xml/datatype/DatatypeConstants;", // Calls OsConstants.initConstants. 2110 "Ljavax/xml/datatype/FactoryFinder;", // Calls OsConstants.initConstants. 2111 "Ljavax/xml/namespace/QName;", // Calls OsConstants.initConstants. 2112 "Ljavax/xml/validation/SchemaFactoryFinder;", // Calls OsConstants.initConstants. 2113 "Ljavax/xml/xpath/XPathConstants;", // Calls OsConstants.initConstants. 2114 "Ljavax/xml/xpath/XPathFactoryFinder;", // Calls OsConstants.initConstants. 2115 "Llibcore/icu/LocaleData;", // Requires java.util.Locale. 2116 "Llibcore/icu/TimeZoneNames;", // Requires java.util.TimeZone. 2117 "Llibcore/io/IoUtils;", // Calls Random.<init> -> System.currentTimeMillis -> FileDescriptor -> OsConstants.initConstants. 2118 "Llibcore/io/OsConstants;", // Platform specific. 2119 "Llibcore/net/MimeUtils;", // Calls libcore.net.MimeUtils.getContentTypesPropertiesStream -> System.getProperty. 2120 "Llibcore/reflect/Types;", // Calls OsConstants.initConstants. 2121 "Llibcore/util/ZoneInfo;", // Sub-class of TimeZone. 2122 "Llibcore/util/ZoneInfoDB;", // Calls System.getenv -> OsConstants.initConstants. 2123 "Lorg/apache/commons/logging/LogFactory;", // Calls System.getProperty. 2124 "Lorg/apache/commons/logging/impl/LogFactoryImpl;", // Calls OsConstants.initConstants. 2125 "Lorg/apache/harmony/security/fortress/Services;", // Calls ClassLoader.getSystemClassLoader -> System.getProperty. 2126 "Lorg/apache/harmony/security/provider/cert/X509CertFactoryImpl;", // Requires java.nio.charsets.Charsets. 2127 "Lorg/apache/harmony/security/provider/crypto/RandomBitsSupplier;", // Requires java.io.File. 2128 "Lorg/apache/harmony/security/utils/AlgNameMapper;", // Requires java.util.Locale. 2129 "Lorg/apache/harmony/security/pkcs10/CertificationRequest;", // Calls Thread.currentThread. 2130 "Lorg/apache/harmony/security/pkcs10/CertificationRequestInfo;", // Calls Thread.currentThread. 2131 "Lorg/apache/harmony/security/pkcs7/AuthenticatedAttributes;", // Calls Thread.currentThread. 2132 "Lorg/apache/harmony/security/pkcs7/SignedData;", // Calls Thread.currentThread. 2133 "Lorg/apache/harmony/security/pkcs7/SignerInfo;", // Calls Thread.currentThread. 2134 "Lorg/apache/harmony/security/pkcs8/PrivateKeyInfo;", // Calls Thread.currentThread. 2135 "Lorg/apache/harmony/security/provider/crypto/SHA1PRNG_SecureRandomImpl;", // Calls OsConstants.initConstants. 2136 "Lorg/apache/harmony/security/x501/AttributeTypeAndValue;", // Calls IntegralToString.convertInt -> Thread.currentThread. 2137 "Lorg/apache/harmony/security/x501/DirectoryString;", // Requires BigInteger. 2138 "Lorg/apache/harmony/security/x501/Name;", // Requires org.apache.harmony.security.x501.AttributeTypeAndValue. 2139 "Lorg/apache/harmony/security/x509/AccessDescription;", // Calls Thread.currentThread. 2140 "Lorg/apache/harmony/security/x509/AuthorityKeyIdentifier;", // Calls Thread.currentThread. 2141 "Lorg/apache/harmony/security/x509/CRLDistributionPoints;", // Calls Thread.currentThread. 2142 "Lorg/apache/harmony/security/x509/Certificate;", // Requires org.apache.harmony.security.x509.TBSCertificate. 2143 "Lorg/apache/harmony/security/x509/CertificateIssuer;", // Calls Thread.currentThread. 2144 "Lorg/apache/harmony/security/x509/CertificateList;", // Calls Thread.currentThread. 2145 "Lorg/apache/harmony/security/x509/DistributionPoint;", // Calls Thread.currentThread. 2146 "Lorg/apache/harmony/security/x509/DistributionPointName;", // Calls Thread.currentThread. 2147 "Lorg/apache/harmony/security/x509/EDIPartyName;", // Calls native ... -> java.math.NativeBN.BN_new(). 2148 "Lorg/apache/harmony/security/x509/GeneralName;", // Requires org.apache.harmony.security.x501.Name. 2149 "Lorg/apache/harmony/security/x509/GeneralNames;", // Requires GeneralName. 2150 "Lorg/apache/harmony/security/x509/GeneralSubtree;", // Calls Thread.currentThread. 2151 "Lorg/apache/harmony/security/x509/GeneralSubtrees;", // Calls Thread.currentThread. 2152 "Lorg/apache/harmony/security/x509/InfoAccessSyntax;", // Calls Thread.currentThread. 2153 "Lorg/apache/harmony/security/x509/IssuingDistributionPoint;", // Calls Thread.currentThread. 2154 "Lorg/apache/harmony/security/x509/NameConstraints;", // Calls Thread.currentThread. 2155 "Lorg/apache/harmony/security/x509/TBSCertList$RevokedCertificate;", // Calls NativeBN.BN_new(). 2156 "Lorg/apache/harmony/security/x509/TBSCertList;", // Calls Thread.currentThread. 2157 "Lorg/apache/harmony/security/x509/TBSCertificate;", // Requires org.apache.harmony.security.x501.Name. 2158 "Lorg/apache/harmony/security/x509/Time;", // Calls native ... -> java.math.NativeBN.BN_new(). 2159 "Lorg/apache/harmony/security/x509/Validity;", // Requires x509.Time. 2160 "Lorg/apache/harmony/security/x509/tsp/TSTInfo;", // Calls Thread.currentThread. 2161 "Lorg/apache/harmony/xml/ExpatParser;", // Calls native ExpatParser.staticInitialize. 2162 "Lorg/apache/harmony/xml/ExpatParser$EntityParser;", // Calls ExpatParser.staticInitialize. 2163 "Lorg/apache/http/conn/params/ConnRouteParams;", // Requires java.util.Locale. 2164 "Lorg/apache/http/conn/ssl/SSLSocketFactory;", // Calls java.security.Security.getProperty. 2165 "Lorg/apache/http/conn/util/InetAddressUtils;", // Calls regex.Pattern.compile -..-> regex.Pattern.compileImpl. 2166}; 2167 2168static void InitializeClass(const ParallelCompilationManager* manager, size_t class_def_index) 2169 LOCKS_EXCLUDED(Locks::mutator_lock_) { 2170 ATRACE_CALL(); 2171 jobject jclass_loader = manager->GetClassLoader(); 2172 const DexFile& dex_file = *manager->GetDexFile(); 2173 const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); 2174 const DexFile::TypeId& class_type_id = dex_file.GetTypeId(class_def.class_idx_); 2175 const char* descriptor = dex_file.StringDataByIdx(class_type_id.descriptor_idx_); 2176 2177 ScopedObjectAccess soa(Thread::Current()); 2178 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), 2179 soa.Decode<mirror::ClassLoader*>(jclass_loader)); 2180 SirtRef<mirror::Class> klass(soa.Self(), 2181 manager->GetClassLinker()->FindClass(descriptor, class_loader)); 2182 2183 if (klass.get() != nullptr && !SkipClass(jclass_loader, dex_file, klass.get())) { 2184 // Only try to initialize classes that were successfully verified. 2185 if (klass->IsVerified()) { 2186 // Attempt to initialize the class but bail if we either need to initialize the super-class 2187 // or static fields. 2188 manager->GetClassLinker()->EnsureInitialized(klass, false, false); 2189 if (!klass->IsInitialized()) { 2190 // We don't want non-trivial class initialization occurring on multiple threads due to 2191 // deadlock problems. For example, a parent class is initialized (holding its lock) that 2192 // refers to a sub-class in its static/class initializer causing it to try to acquire the 2193 // sub-class' lock. While on a second thread the sub-class is initialized (holding its lock) 2194 // after first initializing its parents, whose locks are acquired. This leads to a 2195 // parent-to-child and a child-to-parent lock ordering and consequent potential deadlock. 2196 // We need to use an ObjectLock due to potential suspension in the interpreting code. Rather 2197 // than use a special Object for the purpose we use the Class of java.lang.Class. 2198 SirtRef<mirror::Class> sirt_klass(soa.Self(), klass->GetClass()); 2199 ObjectLock<mirror::Class> lock(soa.Self(), &sirt_klass); 2200 // Attempt to initialize allowing initialization of parent classes but still not static 2201 // fields. 2202 manager->GetClassLinker()->EnsureInitialized(klass, false, true); 2203 if (!klass->IsInitialized()) { 2204 // We need to initialize static fields, we only do this for image classes that aren't 2205 // black listed or marked with the $NoPreloadHolder. 2206 bool can_init_static_fields = manager->GetCompiler()->IsImage() && 2207 manager->GetCompiler()->IsImageClass(descriptor); 2208 if (can_init_static_fields) { 2209 // NoPreloadHolder inner class implies this should not be initialized early. 2210 bool is_black_listed = StringPiece(descriptor).ends_with("$NoPreloadHolder;"); 2211 if (!is_black_listed) { 2212 for (size_t i = 0; i < arraysize(class_initializer_black_list); ++i) { 2213 if (strcmp(descriptor, class_initializer_black_list[i]) == 0) { 2214 is_black_listed = true; 2215 break; 2216 } 2217 } 2218 } 2219 if (!is_black_listed) { 2220 VLOG(compiler) << "Initializing: " << descriptor; 2221 if (strcmp("Ljava/lang/Void;", descriptor) == 0) { 2222 // Hand initialize j.l.Void to avoid Dex file operations in un-started runtime. 2223 ObjectLock<mirror::Class> lock(soa.Self(), &klass); 2224 mirror::ObjectArray<mirror::ArtField>* fields = klass->GetSFields(); 2225 CHECK_EQ(fields->GetLength(), 1); 2226 fields->Get(0)->SetObj(klass.get(), 2227 manager->GetClassLinker()->FindPrimitiveClass('V')); 2228 klass->SetStatus(mirror::Class::kStatusInitialized, soa.Self()); 2229 } else { 2230 manager->GetClassLinker()->EnsureInitialized(klass, true, true); 2231 } 2232 } 2233 } 2234 } 2235 soa.Self()->AssertNoPendingException(); 2236 } 2237 } 2238 // Record the final class status if necessary. 2239 ClassReference ref(manager->GetDexFile(), class_def_index); 2240 manager->GetCompiler()->RecordClassStatus(ref, klass->GetStatus()); 2241 } 2242 // Clear any class not found or verification exceptions. 2243 soa.Self()->ClearException(); 2244} 2245 2246void CompilerDriver::InitializeClasses(jobject jni_class_loader, const DexFile& dex_file, 2247 ThreadPool& thread_pool, TimingLogger& timings) { 2248 timings.NewSplit("InitializeNoClinit"); 2249#ifndef NDEBUG 2250 // Sanity check blacklist descriptors. 2251 if (IsImage()) { 2252 for (size_t i = 0; i < arraysize(class_initializer_black_list); ++i) { 2253 const char* descriptor = class_initializer_black_list[i]; 2254 CHECK(IsValidDescriptor(descriptor)) << descriptor; 2255 } 2256 } 2257#endif 2258 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 2259 ParallelCompilationManager context(class_linker, jni_class_loader, this, &dex_file, thread_pool); 2260 context.ForAll(0, dex_file.NumClassDefs(), InitializeClass, thread_count_); 2261} 2262 2263void CompilerDriver::InitializeClasses(jobject class_loader, 2264 const std::vector<const DexFile*>& dex_files, 2265 ThreadPool& thread_pool, TimingLogger& timings) { 2266 for (size_t i = 0; i != dex_files.size(); ++i) { 2267 const DexFile* dex_file = dex_files[i]; 2268 CHECK(dex_file != NULL); 2269 InitializeClasses(class_loader, *dex_file, thread_pool, timings); 2270 } 2271} 2272 2273void CompilerDriver::Compile(jobject class_loader, const std::vector<const DexFile*>& dex_files, 2274 ThreadPool& thread_pool, TimingLogger& timings) { 2275 for (size_t i = 0; i != dex_files.size(); ++i) { 2276 const DexFile* dex_file = dex_files[i]; 2277 CHECK(dex_file != NULL); 2278 CompileDexFile(class_loader, *dex_file, thread_pool, timings); 2279 } 2280} 2281 2282void CompilerDriver::CompileClass(const ParallelCompilationManager* manager, size_t class_def_index) { 2283 ATRACE_CALL(); 2284 jobject jclass_loader = manager->GetClassLoader(); 2285 const DexFile& dex_file = *manager->GetDexFile(); 2286 const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); 2287 ClassLinker* class_linker = manager->GetClassLinker(); 2288 if (SkipClass(class_linker, jclass_loader, dex_file, class_def)) { 2289 return; 2290 } 2291 ClassReference ref(&dex_file, class_def_index); 2292 // Skip compiling classes with generic verifier failures since they will still fail at runtime 2293 if (manager->GetCompiler()->verification_results_->IsClassRejected(ref)) { 2294 return; 2295 } 2296 const byte* class_data = dex_file.GetClassData(class_def); 2297 if (class_data == NULL) { 2298 // empty class, probably a marker interface 2299 return; 2300 } 2301 2302 // Can we run DEX-to-DEX compiler on this class ? 2303 DexToDexCompilationLevel dex_to_dex_compilation_level = kDontDexToDexCompile; 2304 { 2305 ScopedObjectAccess soa(Thread::Current()); 2306 SirtRef<mirror::ClassLoader> class_loader(soa.Self(), 2307 soa.Decode<mirror::ClassLoader*>(jclass_loader)); 2308 dex_to_dex_compilation_level = GetDexToDexCompilationlevel(class_loader, dex_file, class_def); 2309 } 2310 ClassDataItemIterator it(dex_file, class_data); 2311 // Skip fields 2312 while (it.HasNextStaticField()) { 2313 it.Next(); 2314 } 2315 while (it.HasNextInstanceField()) { 2316 it.Next(); 2317 } 2318 CompilerDriver* driver = manager->GetCompiler(); 2319 // Compile direct methods 2320 int64_t previous_direct_method_idx = -1; 2321 while (it.HasNextDirectMethod()) { 2322 uint32_t method_idx = it.GetMemberIndex(); 2323 if (method_idx == previous_direct_method_idx) { 2324 // smali can create dex files with two encoded_methods sharing the same method_idx 2325 // http://code.google.com/p/smali/issues/detail?id=119 2326 it.Next(); 2327 continue; 2328 } 2329 previous_direct_method_idx = method_idx; 2330 driver->CompileMethod(it.GetMethodCodeItem(), it.GetMemberAccessFlags(), 2331 it.GetMethodInvokeType(class_def), class_def_index, 2332 method_idx, jclass_loader, dex_file, dex_to_dex_compilation_level); 2333 it.Next(); 2334 } 2335 // Compile virtual methods 2336 int64_t previous_virtual_method_idx = -1; 2337 while (it.HasNextVirtualMethod()) { 2338 uint32_t method_idx = it.GetMemberIndex(); 2339 if (method_idx == previous_virtual_method_idx) { 2340 // smali can create dex files with two encoded_methods sharing the same method_idx 2341 // http://code.google.com/p/smali/issues/detail?id=119 2342 it.Next(); 2343 continue; 2344 } 2345 previous_virtual_method_idx = method_idx; 2346 driver->CompileMethod(it.GetMethodCodeItem(), it.GetMemberAccessFlags(), 2347 it.GetMethodInvokeType(class_def), class_def_index, 2348 method_idx, jclass_loader, dex_file, dex_to_dex_compilation_level); 2349 it.Next(); 2350 } 2351 DCHECK(!it.HasNext()); 2352} 2353 2354void CompilerDriver::CompileDexFile(jobject class_loader, const DexFile& dex_file, 2355 ThreadPool& thread_pool, TimingLogger& timings) { 2356 timings.NewSplit("Compile Dex File"); 2357 ParallelCompilationManager context(Runtime::Current()->GetClassLinker(), class_loader, this, 2358 &dex_file, thread_pool); 2359 context.ForAll(0, dex_file.NumClassDefs(), CompilerDriver::CompileClass, thread_count_); 2360} 2361 2362void CompilerDriver::CompileMethod(const DexFile::CodeItem* code_item, uint32_t access_flags, 2363 InvokeType invoke_type, uint16_t class_def_idx, 2364 uint32_t method_idx, jobject class_loader, 2365 const DexFile& dex_file, 2366 DexToDexCompilationLevel dex_to_dex_compilation_level) { 2367 CompiledMethod* compiled_method = NULL; 2368 uint64_t start_ns = NanoTime(); 2369 2370 if ((access_flags & kAccNative) != 0) { 2371 compiled_method = (*jni_compiler_)(*this, access_flags, method_idx, dex_file); 2372 CHECK(compiled_method != NULL); 2373 } else if ((access_flags & kAccAbstract) != 0) { 2374 } else { 2375 MethodReference method_ref(&dex_file, method_idx); 2376 bool compile = VerificationResults::IsCandidateForCompilation(method_ref, access_flags); 2377 2378 if (compile) { 2379 CompilerFn compiler = compiler_; 2380#ifdef ART_SEA_IR_MODE 2381 bool use_sea = Runtime::Current()->IsSeaIRMode(); 2382 use_sea = use_sea && 2383 (std::string::npos != PrettyMethod(method_idx, dex_file).find("fibonacci")); 2384 if (use_sea) { 2385 compiler = sea_ir_compiler_; 2386 LOG(INFO) << "Using SEA IR to compile..." << std::endl; 2387 } 2388#endif 2389 // NOTE: if compiler declines to compile this method, it will return NULL. 2390 compiled_method = (*compiler)(*this, code_item, access_flags, invoke_type, class_def_idx, 2391 method_idx, class_loader, dex_file); 2392 } else if (dex_to_dex_compilation_level != kDontDexToDexCompile) { 2393 // TODO: add a mode to disable DEX-to-DEX compilation ? 2394 (*dex_to_dex_compiler_)(*this, code_item, access_flags, 2395 invoke_type, class_def_idx, 2396 method_idx, class_loader, dex_file, 2397 dex_to_dex_compilation_level); 2398 } 2399 } 2400 uint64_t duration_ns = NanoTime() - start_ns; 2401#ifdef ART_USE_PORTABLE_COMPILER 2402 const uint64_t kWarnMilliSeconds = 1000; 2403#else 2404 const uint64_t kWarnMilliSeconds = 100; 2405#endif 2406 if (duration_ns > MsToNs(kWarnMilliSeconds)) { 2407 LOG(WARNING) << "Compilation of " << PrettyMethod(method_idx, dex_file) 2408 << " took " << PrettyDuration(duration_ns); 2409 } 2410 2411 Thread* self = Thread::Current(); 2412 if (compiled_method != NULL) { 2413 MethodReference ref(&dex_file, method_idx); 2414 DCHECK(GetCompiledMethod(ref) == NULL) << PrettyMethod(method_idx, dex_file); 2415 { 2416 MutexLock mu(self, compiled_methods_lock_); 2417 compiled_methods_.Put(ref, compiled_method); 2418 } 2419 DCHECK(GetCompiledMethod(ref) != NULL) << PrettyMethod(method_idx, dex_file); 2420 } 2421 2422 if (self->IsExceptionPending()) { 2423 ScopedObjectAccess soa(self); 2424 LOG(FATAL) << "Unexpected exception compiling: " << PrettyMethod(method_idx, dex_file) << "\n" 2425 << self->GetException(NULL)->Dump(); 2426 } 2427} 2428 2429CompiledClass* CompilerDriver::GetCompiledClass(ClassReference ref) const { 2430 MutexLock mu(Thread::Current(), compiled_classes_lock_); 2431 ClassTable::const_iterator it = compiled_classes_.find(ref); 2432 if (it == compiled_classes_.end()) { 2433 return NULL; 2434 } 2435 CHECK(it->second != NULL); 2436 return it->second; 2437} 2438 2439void CompilerDriver::RecordClassStatus(ClassReference ref, mirror::Class::Status status) { 2440 MutexLock mu(Thread::Current(), compiled_classes_lock_); 2441 auto it = compiled_classes_.find(ref); 2442 if (it == compiled_classes_.end() || it->second->GetStatus() != status) { 2443 // An entry doesn't exist or the status is lower than the new status. 2444 if (it != compiled_classes_.end()) { 2445 CHECK_GT(status, it->second->GetStatus()); 2446 delete it->second; 2447 } 2448 switch (status) { 2449 case mirror::Class::kStatusNotReady: 2450 case mirror::Class::kStatusError: 2451 case mirror::Class::kStatusRetryVerificationAtRuntime: 2452 case mirror::Class::kStatusVerified: 2453 case mirror::Class::kStatusInitialized: 2454 break; // Expected states. 2455 default: 2456 LOG(FATAL) << "Unexpected class status for class " 2457 << PrettyDescriptor(ref.first->GetClassDescriptor(ref.first->GetClassDef(ref.second))) 2458 << " of " << status; 2459 } 2460 CompiledClass* compiled_class = new CompiledClass(status); 2461 compiled_classes_.Overwrite(ref, compiled_class); 2462 } 2463} 2464 2465CompiledMethod* CompilerDriver::GetCompiledMethod(MethodReference ref) const { 2466 MutexLock mu(Thread::Current(), compiled_methods_lock_); 2467 MethodTable::const_iterator it = compiled_methods_.find(ref); 2468 if (it == compiled_methods_.end()) { 2469 return NULL; 2470 } 2471 CHECK(it->second != NULL); 2472 return it->second; 2473} 2474 2475void CompilerDriver::SetBitcodeFileName(std::string const& filename) { 2476 typedef void (*SetBitcodeFileNameFn)(CompilerDriver&, std::string const&); 2477 2478 SetBitcodeFileNameFn set_bitcode_file_name = 2479 reinterpret_cast<SetBitcodeFileNameFn>(compilerLLVMSetBitcodeFileName); 2480 2481 set_bitcode_file_name(*this, filename); 2482} 2483 2484 2485void CompilerDriver::AddRequiresConstructorBarrier(Thread* self, const DexFile* dex_file, 2486 uint16_t class_def_index) { 2487 WriterMutexLock mu(self, freezing_constructor_lock_); 2488 freezing_constructor_classes_.insert(ClassReference(dex_file, class_def_index)); 2489} 2490 2491bool CompilerDriver::RequiresConstructorBarrier(Thread* self, const DexFile* dex_file, 2492 uint16_t class_def_index) { 2493 ReaderMutexLock mu(self, freezing_constructor_lock_); 2494 return freezing_constructor_classes_.count(ClassReference(dex_file, class_def_index)) != 0; 2495} 2496 2497bool CompilerDriver::WriteElf(const std::string& android_root, 2498 bool is_host, 2499 const std::vector<const art::DexFile*>& dex_files, 2500 OatWriter& oat_writer, 2501 art::File* file) 2502 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 2503#if defined(ART_USE_PORTABLE_COMPILER) 2504 return art::ElfWriterMclinker::Create(file, oat_writer, dex_files, android_root, is_host, *this); 2505#else 2506 return art::ElfWriterQuick::Create(file, oat_writer, dex_files, android_root, is_host, *this); 2507#endif 2508} 2509void CompilerDriver::InstructionSetToLLVMTarget(InstructionSet instruction_set, 2510 std::string& target_triple, 2511 std::string& target_cpu, 2512 std::string& target_attr) { 2513 switch (instruction_set) { 2514 case kThumb2: 2515 target_triple = "thumb-none-linux-gnueabi"; 2516 target_cpu = "cortex-a9"; 2517 target_attr = "+thumb2,+neon,+neonfp,+vfp3,+db"; 2518 break; 2519 2520 case kArm: 2521 target_triple = "armv7-none-linux-gnueabi"; 2522 // TODO: Fix for Nexus S. 2523 target_cpu = "cortex-a9"; 2524 // TODO: Fix for Xoom. 2525 target_attr = "+v7,+neon,+neonfp,+vfp3,+db"; 2526 break; 2527 2528 case kX86: 2529 target_triple = "i386-pc-linux-gnu"; 2530 target_attr = ""; 2531 break; 2532 2533 case kMips: 2534 target_triple = "mipsel-unknown-linux"; 2535 target_attr = "mips32r2"; 2536 break; 2537 2538 default: 2539 LOG(FATAL) << "Unknown instruction set: " << instruction_set; 2540 } 2541 } 2542} // namespace art 2543