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 #ifndef ART_COMPILER_DRIVER_COMPILER_DRIVER_H_ 18 #define ART_COMPILER_DRIVER_COMPILER_DRIVER_H_ 19 20 #include <set> 21 #include <string> 22 #include <unordered_set> 23 #include <vector> 24 25 #include "arch/instruction_set.h" 26 #include "base/arena_allocator.h" 27 #include "base/bit_utils.h" 28 #include "base/mutex.h" 29 #include "base/timing_logger.h" 30 #include "class_reference.h" 31 #include "compiler.h" 32 #include "dex_file.h" 33 #include "driver/compiled_method_storage.h" 34 #include "jit/offline_profiling_info.h" 35 #include "invoke_type.h" 36 #include "method_reference.h" 37 #include "mirror/class.h" // For mirror::Class::Status. 38 #include "os.h" 39 #include "runtime.h" 40 #include "safe_map.h" 41 #include "thread_pool.h" 42 #include "utils/array_ref.h" 43 #include "utils/dex_cache_arrays_layout.h" 44 45 namespace art { 46 47 namespace mirror { 48 class DexCache; 49 } // namespace mirror 50 51 namespace verifier { 52 class MethodVerifier; 53 } // namespace verifier 54 55 class BitVector; 56 class CompiledClass; 57 class CompiledMethod; 58 class CompilerOptions; 59 class DexCompilationUnit; 60 class DexFileToMethodInlinerMap; 61 struct InlineIGetIPutData; 62 class InstructionSetFeatures; 63 class ParallelCompilationManager; 64 class ScopedObjectAccess; 65 template <class Allocator> class SrcMap; 66 class SrcMapElem; 67 using SwapSrcMap = SrcMap<SwapAllocator<SrcMapElem>>; 68 template<class T> class Handle; 69 class TimingLogger; 70 class VerificationResults; 71 class VerifiedMethod; 72 73 enum EntryPointCallingConvention { 74 // ABI of invocations to a method's interpreter entry point. 75 kInterpreterAbi, 76 // ABI of calls to a method's native code, only used for native methods. 77 kJniAbi, 78 // ABI of calls to a method's quick code entry point. 79 kQuickAbi 80 }; 81 82 class CompilerDriver { 83 public: 84 // Create a compiler targeting the requested "instruction_set". 85 // "image" should be true if image specific optimizations should be 86 // enabled. "image_classes" lets the compiler know what classes it 87 // can assume will be in the image, with null implying all available 88 // classes. 89 CompilerDriver(const CompilerOptions* compiler_options, 90 VerificationResults* verification_results, 91 DexFileToMethodInlinerMap* method_inliner_map, 92 Compiler::Kind compiler_kind, 93 InstructionSet instruction_set, 94 const InstructionSetFeatures* instruction_set_features, 95 bool boot_image, 96 bool app_image, 97 std::unordered_set<std::string>* image_classes, 98 std::unordered_set<std::string>* compiled_classes, 99 std::unordered_set<std::string>* compiled_methods, 100 size_t thread_count, 101 bool dump_stats, 102 bool dump_passes, 103 CumulativeLogger* timer, 104 int swap_fd, 105 const ProfileCompilationInfo* profile_compilation_info); 106 107 ~CompilerDriver(); 108 109 // Set dex files that will be stored in the oat file after being compiled. 110 void SetDexFilesForOatFile(const std::vector<const DexFile*>& dex_files) { 111 dex_files_for_oat_file_ = &dex_files; 112 } 113 114 // Get dex file that will be stored in the oat file after being compiled. 115 ArrayRef<const DexFile* const> GetDexFilesForOatFile() const { 116 return (dex_files_for_oat_file_ != nullptr) 117 ? ArrayRef<const DexFile* const>(*dex_files_for_oat_file_) 118 : ArrayRef<const DexFile* const>(); 119 } 120 121 void CompileAll(jobject class_loader, 122 const std::vector<const DexFile*>& dex_files, 123 TimingLogger* timings) 124 REQUIRES(!Locks::mutator_lock_, !compiled_classes_lock_, !dex_to_dex_references_lock_); 125 126 // Compile a single Method. 127 void CompileOne(Thread* self, ArtMethod* method, TimingLogger* timings) 128 SHARED_REQUIRES(Locks::mutator_lock_) 129 REQUIRES(!compiled_methods_lock_, !compiled_classes_lock_, !dex_to_dex_references_lock_); 130 131 VerificationResults* GetVerificationResults() const { 132 DCHECK(Runtime::Current()->IsAotCompiler()); 133 return verification_results_; 134 } 135 136 DexFileToMethodInlinerMap* GetMethodInlinerMap() const { 137 return method_inliner_map_; 138 } 139 140 InstructionSet GetInstructionSet() const { 141 return instruction_set_; 142 } 143 144 const InstructionSetFeatures* GetInstructionSetFeatures() const { 145 return instruction_set_features_; 146 } 147 148 const CompilerOptions& GetCompilerOptions() const { 149 return *compiler_options_; 150 } 151 152 Compiler* GetCompiler() const { 153 return compiler_.get(); 154 } 155 156 // Are we compiling and creating an image file? 157 bool IsBootImage() const { 158 return boot_image_; 159 } 160 161 const std::unordered_set<std::string>* GetImageClasses() const { 162 return image_classes_.get(); 163 } 164 165 // Generate the trampolines that are invoked by unresolved direct methods. 166 std::unique_ptr<const std::vector<uint8_t>> CreateJniDlsymLookup() const; 167 std::unique_ptr<const std::vector<uint8_t>> CreateQuickGenericJniTrampoline() const; 168 std::unique_ptr<const std::vector<uint8_t>> CreateQuickImtConflictTrampoline() const; 169 std::unique_ptr<const std::vector<uint8_t>> CreateQuickResolutionTrampoline() const; 170 std::unique_ptr<const std::vector<uint8_t>> CreateQuickToInterpreterBridge() const; 171 172 CompiledClass* GetCompiledClass(ClassReference ref) const 173 REQUIRES(!compiled_classes_lock_); 174 175 CompiledMethod* GetCompiledMethod(MethodReference ref) const 176 REQUIRES(!compiled_methods_lock_); 177 size_t GetNonRelativeLinkerPatchCount() const 178 REQUIRES(!compiled_methods_lock_); 179 180 // Add a compiled method. 181 void AddCompiledMethod(const MethodReference& method_ref, 182 CompiledMethod* const compiled_method, 183 size_t non_relative_linker_patch_count) 184 REQUIRES(!compiled_methods_lock_); 185 // Remove and delete a compiled method. 186 void RemoveCompiledMethod(const MethodReference& method_ref) REQUIRES(!compiled_methods_lock_); 187 188 void SetRequiresConstructorBarrier(Thread* self, 189 const DexFile* dex_file, 190 uint16_t class_def_index, 191 bool requires) 192 REQUIRES(!requires_constructor_barrier_lock_); 193 bool RequiresConstructorBarrier(Thread* self, 194 const DexFile* dex_file, 195 uint16_t class_def_index) 196 REQUIRES(!requires_constructor_barrier_lock_); 197 198 // Callbacks from compiler to see what runtime checks must be generated. 199 200 bool CanAssumeTypeIsPresentInDexCache(Handle<mirror::DexCache> dex_cache, 201 uint32_t type_idx) 202 SHARED_REQUIRES(Locks::mutator_lock_); 203 204 bool CanAssumeStringIsPresentInDexCache(const DexFile& dex_file, uint32_t string_idx) 205 REQUIRES(!Locks::mutator_lock_); 206 207 // Are runtime access checks necessary in the compiled code? 208 bool CanAccessTypeWithoutChecks(uint32_t referrer_idx, 209 Handle<mirror::DexCache> dex_cache, 210 uint32_t type_idx) 211 SHARED_REQUIRES(Locks::mutator_lock_); 212 213 // Are runtime access and instantiable checks necessary in the code? 214 // out_is_finalizable is set to whether the type is finalizable. 215 bool CanAccessInstantiableTypeWithoutChecks(uint32_t referrer_idx, 216 Handle<mirror::DexCache> dex_cache, 217 uint32_t type_idx, 218 bool* out_is_finalizable) 219 SHARED_REQUIRES(Locks::mutator_lock_); 220 221 bool CanEmbedTypeInCode(const DexFile& dex_file, uint32_t type_idx, 222 bool* is_type_initialized, bool* use_direct_type_ptr, 223 uintptr_t* direct_type_ptr, bool* out_is_finalizable); 224 225 // Query methods for the java.lang.ref.Reference class. 226 bool CanEmbedReferenceTypeInCode(ClassReference* ref, 227 bool* use_direct_type_ptr, uintptr_t* direct_type_ptr); 228 uint32_t GetReferenceSlowFlagOffset() const; 229 uint32_t GetReferenceDisableFlagOffset() const; 230 231 // Get the DexCache for the 232 mirror::DexCache* GetDexCache(const DexCompilationUnit* mUnit) 233 SHARED_REQUIRES(Locks::mutator_lock_); 234 235 mirror::ClassLoader* GetClassLoader(const ScopedObjectAccess& soa, 236 const DexCompilationUnit* mUnit) 237 SHARED_REQUIRES(Locks::mutator_lock_); 238 239 // Resolve compiling method's class. Returns null on failure. 240 mirror::Class* ResolveCompilingMethodsClass( 241 const ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache, 242 Handle<mirror::ClassLoader> class_loader, const DexCompilationUnit* mUnit) 243 SHARED_REQUIRES(Locks::mutator_lock_); 244 245 mirror::Class* ResolveClass( 246 const ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache, 247 Handle<mirror::ClassLoader> class_loader, uint16_t type_index, 248 const DexCompilationUnit* mUnit) 249 SHARED_REQUIRES(Locks::mutator_lock_); 250 251 // Resolve a field. Returns null on failure, including incompatible class change. 252 // NOTE: Unlike ClassLinker's ResolveField(), this method enforces is_static. 253 ArtField* ResolveField( 254 const ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache, 255 Handle<mirror::ClassLoader> class_loader, const DexCompilationUnit* mUnit, 256 uint32_t field_idx, bool is_static) 257 SHARED_REQUIRES(Locks::mutator_lock_); 258 259 // Resolve a field with a given dex file. 260 ArtField* ResolveFieldWithDexFile( 261 const ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache, 262 Handle<mirror::ClassLoader> class_loader, const DexFile* dex_file, 263 uint32_t field_idx, bool is_static) 264 SHARED_REQUIRES(Locks::mutator_lock_); 265 266 // Get declaration location of a resolved field. 267 void GetResolvedFieldDexFileLocation( 268 ArtField* resolved_field, const DexFile** declaring_dex_file, 269 uint16_t* declaring_class_idx, uint16_t* declaring_field_idx) 270 SHARED_REQUIRES(Locks::mutator_lock_); 271 272 bool IsFieldVolatile(ArtField* field) SHARED_REQUIRES(Locks::mutator_lock_); 273 MemberOffset GetFieldOffset(ArtField* field) SHARED_REQUIRES(Locks::mutator_lock_); 274 275 // Find a dex cache for a dex file. 276 inline mirror::DexCache* FindDexCache(const DexFile* dex_file) 277 SHARED_REQUIRES(Locks::mutator_lock_); 278 279 // Can we fast-path an IGET/IPUT access to an instance field? If yes, compute the field offset. 280 std::pair<bool, bool> IsFastInstanceField( 281 mirror::DexCache* dex_cache, mirror::Class* referrer_class, 282 ArtField* resolved_field, uint16_t field_idx) 283 SHARED_REQUIRES(Locks::mutator_lock_); 284 285 // Can we fast-path an SGET/SPUT access to a static field? If yes, compute the type index 286 // of the declaring class in the referrer's dex file. 287 std::pair<bool, bool> IsFastStaticField( 288 mirror::DexCache* dex_cache, mirror::Class* referrer_class, 289 ArtField* resolved_field, uint16_t field_idx, uint32_t* storage_index) 290 SHARED_REQUIRES(Locks::mutator_lock_); 291 292 // Return whether the declaring class of `resolved_method` is 293 // available to `referrer_class`. If this is true, compute the type 294 // index of the declaring class in the referrer's dex file and 295 // return it through the out argument `storage_index`; otherwise 296 // return DexFile::kDexNoIndex through `storage_index`. 297 bool IsClassOfStaticMethodAvailableToReferrer(mirror::DexCache* dex_cache, 298 mirror::Class* referrer_class, 299 ArtMethod* resolved_method, 300 uint16_t method_idx, 301 uint32_t* storage_index) 302 SHARED_REQUIRES(Locks::mutator_lock_); 303 304 // Is static field's in referrer's class? 305 bool IsStaticFieldInReferrerClass(mirror::Class* referrer_class, ArtField* resolved_field) 306 SHARED_REQUIRES(Locks::mutator_lock_); 307 308 // Is static field's class initialized? 309 bool IsStaticFieldsClassInitialized(mirror::Class* referrer_class, 310 ArtField* resolved_field) 311 SHARED_REQUIRES(Locks::mutator_lock_); 312 313 // Resolve a method. Returns null on failure, including incompatible class change. 314 ArtMethod* ResolveMethod( 315 ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache, 316 Handle<mirror::ClassLoader> class_loader, const DexCompilationUnit* mUnit, 317 uint32_t method_idx, InvokeType invoke_type, bool check_incompatible_class_change = true) 318 SHARED_REQUIRES(Locks::mutator_lock_); 319 320 // Get declaration location of a resolved field. 321 void GetResolvedMethodDexFileLocation( 322 ArtMethod* resolved_method, const DexFile** declaring_dex_file, 323 uint16_t* declaring_class_idx, uint16_t* declaring_method_idx) 324 SHARED_REQUIRES(Locks::mutator_lock_); 325 326 // Get the index in the vtable of the method. 327 uint16_t GetResolvedMethodVTableIndex( 328 ArtMethod* resolved_method, InvokeType type) 329 SHARED_REQUIRES(Locks::mutator_lock_); 330 331 // Can we fast-path an INVOKE? If no, returns 0. If yes, returns a non-zero opaque flags value 332 // for ProcessedInvoke() and computes the necessary lowering info. 333 int IsFastInvoke( 334 ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache, 335 Handle<mirror::ClassLoader> class_loader, const DexCompilationUnit* mUnit, 336 mirror::Class* referrer_class, ArtMethod* resolved_method, InvokeType* invoke_type, 337 MethodReference* target_method, const MethodReference* devirt_target, 338 uintptr_t* direct_code, uintptr_t* direct_method) 339 SHARED_REQUIRES(Locks::mutator_lock_); 340 341 // Is method's class initialized for an invoke? 342 // For static invokes to determine whether we need to consider potential call to <clinit>(). 343 // For non-static invokes, assuming a non-null reference, the class is always initialized. 344 bool IsMethodsClassInitialized(mirror::Class* referrer_class, ArtMethod* resolved_method) 345 SHARED_REQUIRES(Locks::mutator_lock_); 346 347 // Get the layout of dex cache arrays for a dex file. Returns invalid layout if the 348 // dex cache arrays don't have a fixed layout. 349 DexCacheArraysLayout GetDexCacheArraysLayout(const DexFile* dex_file); 350 351 void ProcessedInstanceField(bool resolved); 352 void ProcessedStaticField(bool resolved, bool local); 353 void ProcessedInvoke(InvokeType invoke_type, int flags); 354 355 void ComputeFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, 356 const ScopedObjectAccess& soa, bool is_static, 357 ArtField** resolved_field, 358 mirror::Class** referrer_class, 359 mirror::DexCache** dex_cache) 360 SHARED_REQUIRES(Locks::mutator_lock_); 361 362 // Can we fast path instance field access? Computes field's offset and volatility. 363 bool ComputeInstanceFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, bool is_put, 364 MemberOffset* field_offset, bool* is_volatile) 365 REQUIRES(!Locks::mutator_lock_); 366 367 ArtField* ComputeInstanceFieldInfo(uint32_t field_idx, 368 const DexCompilationUnit* mUnit, 369 bool is_put, 370 const ScopedObjectAccess& soa) 371 SHARED_REQUIRES(Locks::mutator_lock_); 372 373 374 // Can we fastpath a interface, super class or virtual method call? Computes method's vtable 375 // index. 376 bool ComputeInvokeInfo(const DexCompilationUnit* mUnit, const uint32_t dex_pc, 377 bool update_stats, bool enable_devirtualization, 378 InvokeType* type, MethodReference* target_method, int* vtable_idx, 379 uintptr_t* direct_code, uintptr_t* direct_method) 380 REQUIRES(!Locks::mutator_lock_); 381 382 const VerifiedMethod* GetVerifiedMethod(const DexFile* dex_file, uint32_t method_idx) const; 383 bool IsSafeCast(const DexCompilationUnit* mUnit, uint32_t dex_pc); 384 385 bool GetSupportBootImageFixup() const { 386 return support_boot_image_fixup_; 387 } 388 389 void SetSupportBootImageFixup(bool support_boot_image_fixup) { 390 support_boot_image_fixup_ = support_boot_image_fixup; 391 } 392 393 void SetCompilerContext(void* compiler_context) { 394 compiler_context_ = compiler_context; 395 } 396 397 void* GetCompilerContext() const { 398 return compiler_context_; 399 } 400 401 size_t GetThreadCount() const { 402 return parallel_thread_count_; 403 } 404 405 bool GetDumpStats() const { 406 return dump_stats_; 407 } 408 409 bool GetDumpPasses() const { 410 return dump_passes_; 411 } 412 413 CumulativeLogger* GetTimingsLogger() const { 414 return timings_logger_; 415 } 416 417 void SetDedupeEnabled(bool dedupe_enabled) { 418 compiled_method_storage_.SetDedupeEnabled(dedupe_enabled); 419 } 420 bool DedupeEnabled() const { 421 return compiled_method_storage_.DedupeEnabled(); 422 } 423 424 // Checks if class specified by type_idx is one of the image_classes_ 425 bool IsImageClass(const char* descriptor) const; 426 427 // Checks whether the provided class should be compiled, i.e., is in classes_to_compile_. 428 bool IsClassToCompile(const char* descriptor) const; 429 430 // Checks whether the provided method should be compiled, i.e., is in method_to_compile_. 431 bool IsMethodToCompile(const MethodReference& method_ref) const; 432 433 // Checks whether profile guided compilation is enabled and if the method should be compiled 434 // according to the profile file. 435 bool ShouldCompileBasedOnProfile(const MethodReference& method_ref) const; 436 437 // Checks whether profile guided verification is enabled and if the method should be verified 438 // according to the profile file. 439 bool ShouldVerifyClassBasedOnProfile(const DexFile& dex_file, uint16_t class_idx) const; 440 441 void RecordClassStatus(ClassReference ref, mirror::Class::Status status) 442 REQUIRES(!compiled_classes_lock_); 443 444 // Checks if the specified method has been verified without failures. Returns 445 // false if the method is not in the verification results (GetVerificationResults). 446 bool IsMethodVerifiedWithoutFailures(uint32_t method_idx, 447 uint16_t class_def_idx, 448 const DexFile& dex_file) const; 449 450 // Get memory usage during compilation. 451 std::string GetMemoryUsageString(bool extended) const; 452 453 bool IsStringTypeIndex(uint16_t type_index, const DexFile* dex_file); 454 bool IsStringInit(uint32_t method_index, const DexFile* dex_file, int32_t* offset); 455 456 void SetHadHardVerifierFailure() { 457 had_hard_verifier_failure_ = true; 458 } 459 460 Compiler::Kind GetCompilerKind() { 461 return compiler_kind_; 462 } 463 464 CompiledMethodStorage* GetCompiledMethodStorage() { 465 return &compiled_method_storage_; 466 } 467 468 // Can we assume that the klass is loaded? 469 bool CanAssumeClassIsLoaded(mirror::Class* klass) 470 SHARED_REQUIRES(Locks::mutator_lock_); 471 472 bool MayInline(const DexFile* inlined_from, const DexFile* inlined_into) const { 473 if (!kIsTargetBuild) { 474 return MayInlineInternal(inlined_from, inlined_into); 475 } 476 return true; 477 } 478 479 void MarkForDexToDexCompilation(Thread* self, const MethodReference& method_ref) 480 REQUIRES(!dex_to_dex_references_lock_); 481 482 const BitVector* GetCurrentDexToDexMethods() const { 483 return current_dex_to_dex_methods_; 484 } 485 486 private: 487 // Return whether the declaring class of `resolved_member` is 488 // available to `referrer_class` for read or write access using two 489 // Boolean values returned as a pair. If is true at least for read 490 // access, compute the type index of the declaring class in the 491 // referrer's dex file and return it through the out argument 492 // `storage_index`; otherwise return DexFile::kDexNoIndex through 493 // `storage_index`. 494 template <typename ArtMember> 495 std::pair<bool, bool> IsClassOfStaticMemberAvailableToReferrer(mirror::DexCache* dex_cache, 496 mirror::Class* referrer_class, 497 ArtMember* resolved_member, 498 uint16_t member_idx, 499 uint32_t* storage_index) 500 SHARED_REQUIRES(Locks::mutator_lock_); 501 502 // Can `referrer_class` access the resolved `member`? 503 // Dispatch call to mirror::Class::CanAccessResolvedField or 504 // mirror::Class::CanAccessResolvedMember depending on the value of 505 // ArtMember. 506 template <typename ArtMember> 507 static bool CanAccessResolvedMember(mirror::Class* referrer_class, 508 mirror::Class* access_to, 509 ArtMember* member, 510 mirror::DexCache* dex_cache, 511 uint32_t field_idx) 512 SHARED_REQUIRES(Locks::mutator_lock_); 513 514 // Can we assume that the klass is initialized? 515 bool CanAssumeClassIsInitialized(mirror::Class* klass) 516 SHARED_REQUIRES(Locks::mutator_lock_); 517 bool CanReferrerAssumeClassIsInitialized(mirror::Class* referrer_class, mirror::Class* klass) 518 SHARED_REQUIRES(Locks::mutator_lock_); 519 520 // These flags are internal to CompilerDriver for collecting INVOKE resolution statistics. 521 // The only external contract is that unresolved method has flags 0 and resolved non-0. 522 enum { 523 kBitMethodResolved = 0, 524 kBitVirtualMadeDirect, 525 kBitPreciseTypeDevirtualization, 526 kBitDirectCallToBoot, 527 kBitDirectMethodToBoot 528 }; 529 static constexpr int kFlagMethodResolved = 1 << kBitMethodResolved; 530 static constexpr int kFlagVirtualMadeDirect = 1 << kBitVirtualMadeDirect; 531 static constexpr int kFlagPreciseTypeDevirtualization = 1 << kBitPreciseTypeDevirtualization; 532 static constexpr int kFlagDirectCallToBoot = 1 << kBitDirectCallToBoot; 533 static constexpr int kFlagDirectMethodToBoot = 1 << kBitDirectMethodToBoot; 534 static constexpr int kFlagsMethodResolvedVirtualMadeDirect = 535 kFlagMethodResolved | kFlagVirtualMadeDirect; 536 static constexpr int kFlagsMethodResolvedPreciseTypeDevirtualization = 537 kFlagsMethodResolvedVirtualMadeDirect | kFlagPreciseTypeDevirtualization; 538 539 public: // TODO make private or eliminate. 540 // Compute constant code and method pointers when possible. 541 void GetCodeAndMethodForDirectCall(/*out*/InvokeType* type, 542 InvokeType sharp_type, 543 bool no_guarantee_of_dex_cache_entry, 544 const mirror::Class* referrer_class, 545 ArtMethod* method, 546 /*out*/int* stats_flags, 547 MethodReference* target_method, 548 uintptr_t* direct_code, uintptr_t* direct_method) 549 SHARED_REQUIRES(Locks::mutator_lock_); 550 551 private: 552 void PreCompile(jobject class_loader, 553 const std::vector<const DexFile*>& dex_files, 554 TimingLogger* timings) 555 REQUIRES(!Locks::mutator_lock_, !compiled_classes_lock_); 556 557 void LoadImageClasses(TimingLogger* timings) REQUIRES(!Locks::mutator_lock_); 558 559 // Attempt to resolve all type, methods, fields, and strings 560 // referenced from code in the dex file following PathClassLoader 561 // ordering semantics. 562 void Resolve(jobject class_loader, 563 const std::vector<const DexFile*>& dex_files, 564 TimingLogger* timings) 565 REQUIRES(!Locks::mutator_lock_); 566 void ResolveDexFile(jobject class_loader, 567 const DexFile& dex_file, 568 const std::vector<const DexFile*>& dex_files, 569 ThreadPool* thread_pool, 570 size_t thread_count, 571 TimingLogger* timings) 572 REQUIRES(!Locks::mutator_lock_); 573 574 void Verify(jobject class_loader, 575 const std::vector<const DexFile*>& dex_files, 576 TimingLogger* timings); 577 void VerifyDexFile(jobject class_loader, 578 const DexFile& dex_file, 579 const std::vector<const DexFile*>& dex_files, 580 ThreadPool* thread_pool, 581 size_t thread_count, 582 TimingLogger* timings) 583 REQUIRES(!Locks::mutator_lock_); 584 585 void SetVerified(jobject class_loader, 586 const std::vector<const DexFile*>& dex_files, 587 TimingLogger* timings); 588 void SetVerifiedDexFile(jobject class_loader, 589 const DexFile& dex_file, 590 const std::vector<const DexFile*>& dex_files, 591 ThreadPool* thread_pool, 592 size_t thread_count, 593 TimingLogger* timings) 594 REQUIRES(!Locks::mutator_lock_); 595 596 void InitializeClasses(jobject class_loader, 597 const std::vector<const DexFile*>& dex_files, 598 TimingLogger* timings) 599 REQUIRES(!Locks::mutator_lock_, !compiled_classes_lock_); 600 void InitializeClasses(jobject class_loader, 601 const DexFile& dex_file, 602 const std::vector<const DexFile*>& dex_files, 603 TimingLogger* timings) 604 REQUIRES(!Locks::mutator_lock_, !compiled_classes_lock_); 605 606 void UpdateImageClasses(TimingLogger* timings) REQUIRES(!Locks::mutator_lock_); 607 static void FindClinitImageClassesCallback(mirror::Object* object, void* arg) 608 SHARED_REQUIRES(Locks::mutator_lock_); 609 610 void Compile(jobject class_loader, 611 const std::vector<const DexFile*>& dex_files, 612 TimingLogger* timings) REQUIRES(!dex_to_dex_references_lock_); 613 void CompileDexFile(jobject class_loader, 614 const DexFile& dex_file, 615 const std::vector<const DexFile*>& dex_files, 616 ThreadPool* thread_pool, 617 size_t thread_count, 618 TimingLogger* timings) 619 REQUIRES(!Locks::mutator_lock_); 620 621 bool MayInlineInternal(const DexFile* inlined_from, const DexFile* inlined_into) const; 622 623 void InitializeThreadPools(); 624 void FreeThreadPools(); 625 void CheckThreadPools(); 626 627 bool RequiresConstructorBarrier(const DexFile& dex_file, uint16_t class_def_idx) const; 628 629 const CompilerOptions* const compiler_options_; 630 VerificationResults* const verification_results_; 631 DexFileToMethodInlinerMap* const method_inliner_map_; 632 633 std::unique_ptr<Compiler> compiler_; 634 Compiler::Kind compiler_kind_; 635 636 const InstructionSet instruction_set_; 637 const InstructionSetFeatures* const instruction_set_features_; 638 639 // All class references that require constructor barriers. If the class reference is not in the 640 // set then the result has not yet been computed. 641 mutable ReaderWriterMutex requires_constructor_barrier_lock_ DEFAULT_MUTEX_ACQUIRED_AFTER; 642 std::map<ClassReference, bool> requires_constructor_barrier_ 643 GUARDED_BY(requires_constructor_barrier_lock_); 644 645 typedef SafeMap<const ClassReference, CompiledClass*> ClassTable; 646 // All class references that this compiler has compiled. 647 mutable Mutex compiled_classes_lock_ DEFAULT_MUTEX_ACQUIRED_AFTER; 648 ClassTable compiled_classes_ GUARDED_BY(compiled_classes_lock_); 649 650 typedef SafeMap<const MethodReference, CompiledMethod*, MethodReferenceComparator> MethodTable; 651 652 public: 653 // Lock is public so that non-members can have lock annotations. 654 mutable Mutex compiled_methods_lock_ DEFAULT_MUTEX_ACQUIRED_AFTER; 655 656 private: 657 // All method references that this compiler has compiled. 658 MethodTable compiled_methods_ GUARDED_BY(compiled_methods_lock_); 659 // Number of non-relative patches in all compiled methods. These patches need space 660 // in the .oat_patches ELF section if requested in the compiler options. 661 size_t non_relative_linker_patch_count_ GUARDED_BY(compiled_methods_lock_); 662 663 const bool boot_image_; 664 const bool app_image_; 665 666 // If image_ is true, specifies the classes that will be included in the image. 667 // Note if image_classes_ is null, all classes are included in the image. 668 std::unique_ptr<std::unordered_set<std::string>> image_classes_; 669 670 // Specifies the classes that will be compiled. Note that if classes_to_compile_ is null, 671 // all classes are eligible for compilation (duplication filters etc. will still apply). 672 // This option may be restricted to the boot image, depending on a flag in the implementation. 673 std::unique_ptr<std::unordered_set<std::string>> classes_to_compile_; 674 675 // Specifies the methods that will be compiled. Note that if methods_to_compile_ is null, 676 // all methods are eligible for compilation (compilation filters etc. will still apply). 677 // This option may be restricted to the boot image, depending on a flag in the implementation. 678 std::unique_ptr<std::unordered_set<std::string>> methods_to_compile_; 679 680 bool had_hard_verifier_failure_; 681 682 // A thread pool that can (potentially) run tasks in parallel. 683 std::unique_ptr<ThreadPool> parallel_thread_pool_; 684 size_t parallel_thread_count_; 685 686 // A thread pool that guarantees running single-threaded on the main thread. 687 std::unique_ptr<ThreadPool> single_thread_pool_; 688 689 class AOTCompilationStats; 690 std::unique_ptr<AOTCompilationStats> stats_; 691 692 bool dump_stats_; 693 const bool dump_passes_; 694 695 CumulativeLogger* const timings_logger_; 696 697 typedef void (*CompilerCallbackFn)(CompilerDriver& driver); 698 typedef MutexLock* (*CompilerMutexLockFn)(CompilerDriver& driver); 699 700 void* compiler_context_; 701 702 bool support_boot_image_fixup_; 703 704 // List of dex files that will be stored in the oat file. 705 const std::vector<const DexFile*>* dex_files_for_oat_file_; 706 707 CompiledMethodStorage compiled_method_storage_; 708 709 // Info for profile guided compilation. 710 const ProfileCompilationInfo* const profile_compilation_info_; 711 712 size_t max_arena_alloc_; 713 714 // Data for delaying dex-to-dex compilation. 715 Mutex dex_to_dex_references_lock_; 716 // In the first phase, dex_to_dex_references_ collects methods for dex-to-dex compilation. 717 class DexFileMethodSet; 718 std::vector<DexFileMethodSet> dex_to_dex_references_ GUARDED_BY(dex_to_dex_references_lock_); 719 // In the second phase, current_dex_to_dex_methods_ points to the BitVector with method 720 // indexes for dex-to-dex compilation in the current dex file. 721 const BitVector* current_dex_to_dex_methods_; 722 723 friend class CompileClassVisitor; 724 DISALLOW_COPY_AND_ASSIGN(CompilerDriver); 725 }; 726 727 } // namespace art 728 729 #endif // ART_COMPILER_DRIVER_COMPILER_DRIVER_H_ 730
