compiler_driver.h revision 3887c468d731420e929e6ad3acf190d5431e94fc
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 "invoke_type.h" 34#include "method_reference.h" 35#include "mirror/class.h" // For mirror::Class::Status. 36#include "os.h" 37#include "profiler.h" 38#include "runtime.h" 39#include "safe_map.h" 40#include "thread_pool.h" 41#include "utils/array_ref.h" 42#include "utils/dedupe_set.h" 43#include "utils/dex_cache_arrays_layout.h" 44#include "utils/swap_space.h" 45 46namespace art { 47 48namespace mirror { 49class DexCache; 50} // namespace mirror 51 52namespace verifier { 53class MethodVerifier; 54} // namespace verifier 55 56class CompiledClass; 57class CompiledMethod; 58class CompilerOptions; 59class DexCompilationUnit; 60class DexFileToMethodInlinerMap; 61struct InlineIGetIPutData; 62class InstructionSetFeatures; 63class OatWriter; 64class ParallelCompilationManager; 65class ScopedObjectAccess; 66template <class Allocator> class SrcMap; 67class SrcMapElem; 68using SwapSrcMap = SrcMap<SwapAllocator<SrcMapElem>>; 69template<class T> class Handle; 70class TimingLogger; 71class VerificationResults; 72class VerifiedMethod; 73 74enum EntryPointCallingConvention { 75 // ABI of invocations to a method's interpreter entry point. 76 kInterpreterAbi, 77 // ABI of calls to a method's native code, only used for native methods. 78 kJniAbi, 79 // ABI of calls to a method's quick code entry point. 80 kQuickAbi 81}; 82 83static constexpr bool kUseMurmur3Hash = true; 84 85class CompilerDriver { 86 public: 87 // Create a compiler targeting the requested "instruction_set". 88 // "image" should be true if image specific optimizations should be 89 // enabled. "image_classes" lets the compiler know what classes it 90 // can assume will be in the image, with null implying all available 91 // classes. 92 CompilerDriver(const CompilerOptions* compiler_options, 93 VerificationResults* verification_results, 94 DexFileToMethodInlinerMap* method_inliner_map, 95 Compiler::Kind compiler_kind, 96 InstructionSet instruction_set, 97 const InstructionSetFeatures* instruction_set_features, 98 bool image, std::unordered_set<std::string>* image_classes, 99 std::unordered_set<std::string>* compiled_classes, 100 std::unordered_set<std::string>* compiled_methods, 101 size_t thread_count, bool dump_stats, bool dump_passes, 102 const std::string& dump_cfg_file_name, 103 CumulativeLogger* timer, int swap_fd, 104 const std::string& profile_file); 105 106 ~CompilerDriver(); 107 108 void CompileAll(jobject class_loader, const std::vector<const DexFile*>& dex_files, 109 TimingLogger* timings) 110 REQUIRES(!Locks::mutator_lock_, !compiled_classes_lock_); 111 112 CompiledMethod* CompileArtMethod(Thread* self, ArtMethod*) 113 SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!compiled_methods_lock_) WARN_UNUSED; 114 115 // Compile a single Method. 116 void CompileOne(Thread* self, ArtMethod* method, TimingLogger* timings) 117 SHARED_REQUIRES(Locks::mutator_lock_) 118 REQUIRES(!compiled_methods_lock_, !compiled_classes_lock_); 119 120 VerificationResults* GetVerificationResults() const { 121 return verification_results_; 122 } 123 124 DexFileToMethodInlinerMap* GetMethodInlinerMap() const { 125 return method_inliner_map_; 126 } 127 128 InstructionSet GetInstructionSet() const { 129 return instruction_set_; 130 } 131 132 const InstructionSetFeatures* GetInstructionSetFeatures() const { 133 return instruction_set_features_; 134 } 135 136 const CompilerOptions& GetCompilerOptions() const { 137 return *compiler_options_; 138 } 139 140 Compiler* GetCompiler() const { 141 return compiler_.get(); 142 } 143 144 bool ProfilePresent() const { 145 return profile_present_; 146 } 147 148 // Are we compiling and creating an image file? 149 bool IsImage() const { 150 return image_; 151 } 152 153 const std::unordered_set<std::string>* GetImageClasses() const { 154 return image_classes_.get(); 155 } 156 157 // Generate the trampolines that are invoked by unresolved direct methods. 158 const std::vector<uint8_t>* CreateInterpreterToInterpreterBridge() const 159 SHARED_REQUIRES(Locks::mutator_lock_); 160 const std::vector<uint8_t>* CreateInterpreterToCompiledCodeBridge() const 161 SHARED_REQUIRES(Locks::mutator_lock_); 162 const std::vector<uint8_t>* CreateJniDlsymLookup() const 163 SHARED_REQUIRES(Locks::mutator_lock_); 164 const std::vector<uint8_t>* CreateQuickGenericJniTrampoline() const 165 SHARED_REQUIRES(Locks::mutator_lock_); 166 const std::vector<uint8_t>* CreateQuickImtConflictTrampoline() const 167 SHARED_REQUIRES(Locks::mutator_lock_); 168 const std::vector<uint8_t>* CreateQuickResolutionTrampoline() const 169 SHARED_REQUIRES(Locks::mutator_lock_); 170 const std::vector<uint8_t>* CreateQuickToInterpreterBridge() const 171 SHARED_REQUIRES(Locks::mutator_lock_); 172 173 CompiledClass* GetCompiledClass(ClassReference ref) const 174 REQUIRES(!compiled_classes_lock_); 175 176 CompiledMethod* GetCompiledMethod(MethodReference ref) const 177 REQUIRES(!compiled_methods_lock_); 178 size_t GetNonRelativeLinkerPatchCount() const 179 REQUIRES(!compiled_methods_lock_); 180 181 // Add a compiled method. 182 void AddCompiledMethod(const MethodReference& method_ref, 183 CompiledMethod* const compiled_method, 184 size_t non_relative_linker_patch_count) 185 REQUIRES(!compiled_methods_lock_); 186 // Remove and delete a compiled method. 187 void RemoveCompiledMethod(const MethodReference& method_ref) REQUIRES(!compiled_methods_lock_); 188 189 void AddRequiresConstructorBarrier(Thread* self, const DexFile* dex_file, 190 uint16_t class_def_index) 191 REQUIRES(!freezing_constructor_lock_); 192 bool RequiresConstructorBarrier(Thread* self, const DexFile* dex_file, 193 uint16_t class_def_index) const 194 REQUIRES(!freezing_constructor_lock_); 195 196 // Callbacks from compiler to see what runtime checks must be generated. 197 198 bool CanAssumeTypeIsPresentInDexCache(const DexFile& dex_file, uint32_t type_idx); 199 200 bool CanAssumeStringIsPresentInDexCache(const DexFile& dex_file, uint32_t string_idx) 201 REQUIRES(!Locks::mutator_lock_); 202 203 // Are runtime access checks necessary in the compiled code? 204 bool CanAccessTypeWithoutChecks(uint32_t referrer_idx, const DexFile& dex_file, 205 uint32_t type_idx, bool* type_known_final = nullptr, 206 bool* type_known_abstract = nullptr, 207 bool* equals_referrers_class = nullptr) 208 REQUIRES(!Locks::mutator_lock_); 209 210 // Are runtime access and instantiable checks necessary in the code? 211 bool CanAccessInstantiableTypeWithoutChecks(uint32_t referrer_idx, const DexFile& dex_file, 212 uint32_t type_idx) 213 REQUIRES(!Locks::mutator_lock_); 214 215 bool CanEmbedTypeInCode(const DexFile& dex_file, uint32_t type_idx, 216 bool* is_type_initialized, bool* use_direct_type_ptr, 217 uintptr_t* direct_type_ptr, bool* out_is_finalizable); 218 219 // Query methods for the java.lang.ref.Reference class. 220 bool CanEmbedReferenceTypeInCode(ClassReference* ref, 221 bool* use_direct_type_ptr, uintptr_t* direct_type_ptr); 222 uint32_t GetReferenceSlowFlagOffset() const; 223 uint32_t GetReferenceDisableFlagOffset() const; 224 225 // Get the DexCache for the 226 mirror::DexCache* GetDexCache(const DexCompilationUnit* mUnit) 227 SHARED_REQUIRES(Locks::mutator_lock_); 228 229 mirror::ClassLoader* GetClassLoader(ScopedObjectAccess& soa, const DexCompilationUnit* mUnit) 230 SHARED_REQUIRES(Locks::mutator_lock_); 231 232 // Resolve compiling method's class. Returns null on failure. 233 mirror::Class* ResolveCompilingMethodsClass( 234 const ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache, 235 Handle<mirror::ClassLoader> class_loader, const DexCompilationUnit* mUnit) 236 SHARED_REQUIRES(Locks::mutator_lock_); 237 238 mirror::Class* ResolveClass( 239 const ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache, 240 Handle<mirror::ClassLoader> class_loader, uint16_t type_index, 241 const DexCompilationUnit* mUnit) 242 SHARED_REQUIRES(Locks::mutator_lock_); 243 244 // Resolve a field. Returns null on failure, including incompatible class change. 245 // NOTE: Unlike ClassLinker's ResolveField(), this method enforces is_static. 246 ArtField* ResolveField( 247 const ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache, 248 Handle<mirror::ClassLoader> class_loader, const DexCompilationUnit* mUnit, 249 uint32_t field_idx, bool is_static) 250 SHARED_REQUIRES(Locks::mutator_lock_); 251 252 // Resolve a field with a given dex file. 253 ArtField* ResolveFieldWithDexFile( 254 const ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache, 255 Handle<mirror::ClassLoader> class_loader, const DexFile* dex_file, 256 uint32_t field_idx, bool is_static) 257 SHARED_REQUIRES(Locks::mutator_lock_); 258 259 // Get declaration location of a resolved field. 260 void GetResolvedFieldDexFileLocation( 261 ArtField* resolved_field, const DexFile** declaring_dex_file, 262 uint16_t* declaring_class_idx, uint16_t* declaring_field_idx) 263 SHARED_REQUIRES(Locks::mutator_lock_); 264 265 bool IsFieldVolatile(ArtField* field) SHARED_REQUIRES(Locks::mutator_lock_); 266 MemberOffset GetFieldOffset(ArtField* field) SHARED_REQUIRES(Locks::mutator_lock_); 267 268 // Find a dex cache for a dex file. 269 inline mirror::DexCache* FindDexCache(const DexFile* dex_file) 270 SHARED_REQUIRES(Locks::mutator_lock_); 271 272 // Can we fast-path an IGET/IPUT access to an instance field? If yes, compute the field offset. 273 std::pair<bool, bool> IsFastInstanceField( 274 mirror::DexCache* dex_cache, mirror::Class* referrer_class, 275 ArtField* resolved_field, uint16_t field_idx) 276 SHARED_REQUIRES(Locks::mutator_lock_); 277 278 // Can we fast-path an SGET/SPUT access to a static field? If yes, compute the type index 279 // of the declaring class in the referrer's dex file. 280 std::pair<bool, bool> IsFastStaticField( 281 mirror::DexCache* dex_cache, mirror::Class* referrer_class, 282 ArtField* resolved_field, uint16_t field_idx, uint32_t* storage_index) 283 SHARED_REQUIRES(Locks::mutator_lock_); 284 285 // Return whether the declaring class of `resolved_method` is 286 // available to `referrer_class`. If this is true, compute the type 287 // index of the declaring class in the referrer's dex file and 288 // return it through the out argument `storage_index`; otherwise 289 // return DexFile::kDexNoIndex through `storage_index`. 290 bool IsClassOfStaticMethodAvailableToReferrer(mirror::DexCache* dex_cache, 291 mirror::Class* referrer_class, 292 ArtMethod* resolved_method, 293 uint16_t method_idx, 294 uint32_t* storage_index) 295 SHARED_REQUIRES(Locks::mutator_lock_); 296 297 // Is static field's in referrer's class? 298 bool IsStaticFieldInReferrerClass(mirror::Class* referrer_class, ArtField* resolved_field) 299 SHARED_REQUIRES(Locks::mutator_lock_); 300 301 // Is static field's class initialized? 302 bool IsStaticFieldsClassInitialized(mirror::Class* referrer_class, 303 ArtField* resolved_field) 304 SHARED_REQUIRES(Locks::mutator_lock_); 305 306 // Resolve a method. Returns null on failure, including incompatible class change. 307 ArtMethod* ResolveMethod( 308 ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache, 309 Handle<mirror::ClassLoader> class_loader, const DexCompilationUnit* mUnit, 310 uint32_t method_idx, InvokeType invoke_type, bool check_incompatible_class_change = true) 311 SHARED_REQUIRES(Locks::mutator_lock_); 312 313 // Get declaration location of a resolved field. 314 void GetResolvedMethodDexFileLocation( 315 ArtMethod* resolved_method, const DexFile** declaring_dex_file, 316 uint16_t* declaring_class_idx, uint16_t* declaring_method_idx) 317 SHARED_REQUIRES(Locks::mutator_lock_); 318 319 // Get the index in the vtable of the method. 320 uint16_t GetResolvedMethodVTableIndex( 321 ArtMethod* resolved_method, InvokeType type) 322 SHARED_REQUIRES(Locks::mutator_lock_); 323 324 // Can we fast-path an INVOKE? If no, returns 0. If yes, returns a non-zero opaque flags value 325 // for ProcessedInvoke() and computes the necessary lowering info. 326 int IsFastInvoke( 327 ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache, 328 Handle<mirror::ClassLoader> class_loader, const DexCompilationUnit* mUnit, 329 mirror::Class* referrer_class, ArtMethod* resolved_method, InvokeType* invoke_type, 330 MethodReference* target_method, const MethodReference* devirt_target, 331 uintptr_t* direct_code, uintptr_t* direct_method) 332 SHARED_REQUIRES(Locks::mutator_lock_); 333 334 // Is method's class initialized for an invoke? 335 // For static invokes to determine whether we need to consider potential call to <clinit>(). 336 // For non-static invokes, assuming a non-null reference, the class is always initialized. 337 bool IsMethodsClassInitialized(mirror::Class* referrer_class, ArtMethod* resolved_method) 338 SHARED_REQUIRES(Locks::mutator_lock_); 339 340 // Get the layout of dex cache arrays for a dex file. Returns invalid layout if the 341 // dex cache arrays don't have a fixed layout. 342 DexCacheArraysLayout GetDexCacheArraysLayout(const DexFile* dex_file); 343 344 void ProcessedInstanceField(bool resolved); 345 void ProcessedStaticField(bool resolved, bool local); 346 void ProcessedInvoke(InvokeType invoke_type, int flags); 347 348 void ComputeFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, 349 const ScopedObjectAccess& soa, bool is_static, 350 ArtField** resolved_field, 351 mirror::Class** referrer_class, 352 mirror::DexCache** dex_cache) 353 SHARED_REQUIRES(Locks::mutator_lock_); 354 355 // Can we fast path instance field access? Computes field's offset and volatility. 356 bool ComputeInstanceFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, bool is_put, 357 MemberOffset* field_offset, bool* is_volatile) 358 REQUIRES(!Locks::mutator_lock_); 359 360 ArtField* ComputeInstanceFieldInfo(uint32_t field_idx, 361 const DexCompilationUnit* mUnit, 362 bool is_put, 363 const ScopedObjectAccess& soa) 364 SHARED_REQUIRES(Locks::mutator_lock_); 365 366 367 // Can we fastpath static field access? Computes field's offset, volatility and whether the 368 // field is within the referrer (which can avoid checking class initialization). 369 bool ComputeStaticFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, bool is_put, 370 MemberOffset* field_offset, uint32_t* storage_index, 371 bool* is_referrers_class, bool* is_volatile, bool* is_initialized, 372 Primitive::Type* type) 373 REQUIRES(!Locks::mutator_lock_); 374 375 // Can we fastpath a interface, super class or virtual method call? Computes method's vtable 376 // index. 377 bool ComputeInvokeInfo(const DexCompilationUnit* mUnit, const uint32_t dex_pc, 378 bool update_stats, bool enable_devirtualization, 379 InvokeType* type, MethodReference* target_method, int* vtable_idx, 380 uintptr_t* direct_code, uintptr_t* direct_method) 381 REQUIRES(!Locks::mutator_lock_); 382 383 const VerifiedMethod* GetVerifiedMethod(const DexFile* dex_file, uint32_t method_idx) const; 384 bool IsSafeCast(const DexCompilationUnit* mUnit, uint32_t dex_pc); 385 386 bool GetSupportBootImageFixup() const { 387 return support_boot_image_fixup_; 388 } 389 390 void SetSupportBootImageFixup(bool support_boot_image_fixup) { 391 support_boot_image_fixup_ = support_boot_image_fixup; 392 } 393 394 SwapAllocator<void>& GetSwapSpaceAllocator() { 395 return *swap_space_allocator_.get(); 396 } 397 398 bool WriteElf(const std::string& android_root, 399 bool is_host, 400 const std::vector<const DexFile*>& dex_files, 401 OatWriter* oat_writer, 402 File* file); 403 404 void SetCompilerContext(void* compiler_context) { 405 compiler_context_ = compiler_context; 406 } 407 408 void* GetCompilerContext() const { 409 return compiler_context_; 410 } 411 412 size_t GetThreadCount() const { 413 return thread_count_; 414 } 415 416 bool GetDumpStats() const { 417 return dump_stats_; 418 } 419 420 bool GetDumpPasses() const { 421 return dump_passes_; 422 } 423 424 const std::string& GetDumpCfgFileName() const { 425 return dump_cfg_file_name_; 426 } 427 428 CumulativeLogger* GetTimingsLogger() const { 429 return timings_logger_; 430 } 431 432 void SetDedupeEnabled(bool dedupe_enabled) { 433 dedupe_enabled_ = dedupe_enabled; 434 } 435 bool DedupeEnabled() const { 436 return dedupe_enabled_; 437 } 438 439 // Checks if class specified by type_idx is one of the image_classes_ 440 bool IsImageClass(const char* descriptor) const; 441 442 // Checks whether the provided class should be compiled, i.e., is in classes_to_compile_. 443 bool IsClassToCompile(const char* descriptor) const; 444 445 // Checks whether the provided method should be compiled, i.e., is in method_to_compile_. 446 bool IsMethodToCompile(const MethodReference& method_ref) const; 447 448 void RecordClassStatus(ClassReference ref, mirror::Class::Status status) 449 REQUIRES(!compiled_classes_lock_); 450 451 // Checks if the specified method has been verified without failures. Returns 452 // false if the method is not in the verification results (GetVerificationResults). 453 bool IsMethodVerifiedWithoutFailures(uint32_t method_idx, 454 uint16_t class_def_idx, 455 const DexFile& dex_file) const; 456 457 SwapVector<uint8_t>* DeduplicateCode(const ArrayRef<const uint8_t>& code); 458 SwapSrcMap* DeduplicateSrcMappingTable(const ArrayRef<SrcMapElem>& src_map); 459 SwapVector<uint8_t>* DeduplicateMappingTable(const ArrayRef<const uint8_t>& code); 460 SwapVector<uint8_t>* DeduplicateVMapTable(const ArrayRef<const uint8_t>& code); 461 SwapVector<uint8_t>* DeduplicateGCMap(const ArrayRef<const uint8_t>& code); 462 SwapVector<uint8_t>* DeduplicateCFIInfo(const ArrayRef<const uint8_t>& cfi_info); 463 464 // Should the compiler run on this method given profile information? 465 bool SkipCompilation(const std::string& method_name); 466 467 // Get memory usage during compilation. 468 std::string GetMemoryUsageString(bool extended) const; 469 470 bool IsStringTypeIndex(uint16_t type_index, const DexFile* dex_file); 471 bool IsStringInit(uint32_t method_index, const DexFile* dex_file, int32_t* offset); 472 473 void SetHadHardVerifierFailure() { 474 had_hard_verifier_failure_ = true; 475 } 476 477 Compiler::Kind GetCompilerKind() { 478 return compiler_kind_; 479 } 480 481 private: 482 // Return whether the declaring class of `resolved_member` is 483 // available to `referrer_class` for read or write access using two 484 // Boolean values returned as a pair. If is true at least for read 485 // access, compute the type index of the declaring class in the 486 // referrer's dex file and return it through the out argument 487 // `storage_index`; otherwise return DexFile::kDexNoIndex through 488 // `storage_index`. 489 template <typename ArtMember> 490 std::pair<bool, bool> IsClassOfStaticMemberAvailableToReferrer(mirror::DexCache* dex_cache, 491 mirror::Class* referrer_class, 492 ArtMember* resolved_member, 493 uint16_t member_idx, 494 uint32_t* storage_index) 495 SHARED_REQUIRES(Locks::mutator_lock_); 496 497 // Can `referrer_class` access the resolved `member`? 498 // Dispatch call to mirror::Class::CanAccessResolvedField or 499 // mirror::Class::CanAccessResolvedMember depending on the value of 500 // ArtMember. 501 template <typename ArtMember> 502 static bool CanAccessResolvedMember(mirror::Class* referrer_class, 503 mirror::Class* access_to, 504 ArtMember* member, 505 mirror::DexCache* dex_cache, 506 uint32_t field_idx) 507 SHARED_REQUIRES(Locks::mutator_lock_); 508 509 // Can we assume that the klass is initialized? 510 bool CanAssumeClassIsInitialized(mirror::Class* klass) 511 SHARED_REQUIRES(Locks::mutator_lock_); 512 bool CanReferrerAssumeClassIsInitialized(mirror::Class* referrer_class, mirror::Class* klass) 513 SHARED_REQUIRES(Locks::mutator_lock_); 514 515 // Can we assume that the klass is loaded? 516 bool CanAssumeClassIsLoaded(mirror::Class* klass) 517 SHARED_REQUIRES(Locks::mutator_lock_); 518 519 // These flags are internal to CompilerDriver for collecting INVOKE resolution statistics. 520 // The only external contract is that unresolved method has flags 0 and resolved non-0. 521 enum { 522 kBitMethodResolved = 0, 523 kBitVirtualMadeDirect, 524 kBitPreciseTypeDevirtualization, 525 kBitDirectCallToBoot, 526 kBitDirectMethodToBoot 527 }; 528 static constexpr int kFlagMethodResolved = 1 << kBitMethodResolved; 529 static constexpr int kFlagVirtualMadeDirect = 1 << kBitVirtualMadeDirect; 530 static constexpr int kFlagPreciseTypeDevirtualization = 1 << kBitPreciseTypeDevirtualization; 531 static constexpr int kFlagDirectCallToBoot = 1 << kBitDirectCallToBoot; 532 static constexpr int kFlagDirectMethodToBoot = 1 << kBitDirectMethodToBoot; 533 static constexpr int kFlagsMethodResolvedVirtualMadeDirect = 534 kFlagMethodResolved | kFlagVirtualMadeDirect; 535 static constexpr int kFlagsMethodResolvedPreciseTypeDevirtualization = 536 kFlagsMethodResolvedVirtualMadeDirect | kFlagPreciseTypeDevirtualization; 537 538 public: // TODO make private or eliminate. 539 // Compute constant code and method pointers when possible. 540 void GetCodeAndMethodForDirectCall(/*out*/InvokeType* type, 541 InvokeType sharp_type, 542 bool no_guarantee_of_dex_cache_entry, 543 const mirror::Class* referrer_class, 544 ArtMethod* method, 545 /*out*/int* stats_flags, 546 MethodReference* target_method, 547 uintptr_t* direct_code, uintptr_t* direct_method) 548 SHARED_REQUIRES(Locks::mutator_lock_); 549 550 private: 551 void PreCompile(jobject class_loader, const std::vector<const DexFile*>& dex_files, 552 ThreadPool* thread_pool, TimingLogger* timings) 553 REQUIRES(!Locks::mutator_lock_, !compiled_classes_lock_); 554 555 void LoadImageClasses(TimingLogger* timings) REQUIRES(!Locks::mutator_lock_); 556 557 // Attempt to resolve all type, methods, fields, and strings 558 // referenced from code in the dex file following PathClassLoader 559 // ordering semantics. 560 void Resolve(jobject class_loader, const std::vector<const DexFile*>& dex_files, 561 ThreadPool* thread_pool, TimingLogger* timings) 562 REQUIRES(!Locks::mutator_lock_); 563 void ResolveDexFile(jobject class_loader, const DexFile& dex_file, 564 const std::vector<const DexFile*>& dex_files, 565 ThreadPool* thread_pool, TimingLogger* timings) 566 REQUIRES(!Locks::mutator_lock_); 567 568 void Verify(jobject class_loader, const std::vector<const DexFile*>& dex_files, 569 ThreadPool* thread_pool, TimingLogger* timings); 570 void VerifyDexFile(jobject class_loader, const DexFile& dex_file, 571 const std::vector<const DexFile*>& dex_files, 572 ThreadPool* thread_pool, TimingLogger* timings) 573 REQUIRES(!Locks::mutator_lock_); 574 575 void SetVerified(jobject class_loader, const std::vector<const DexFile*>& dex_files, 576 ThreadPool* thread_pool, TimingLogger* timings); 577 void SetVerifiedDexFile(jobject class_loader, const DexFile& dex_file, 578 const std::vector<const DexFile*>& dex_files, 579 ThreadPool* thread_pool, TimingLogger* timings) 580 REQUIRES(!Locks::mutator_lock_); 581 582 void InitializeClasses(jobject class_loader, const std::vector<const DexFile*>& dex_files, 583 ThreadPool* thread_pool, TimingLogger* timings) 584 REQUIRES(!Locks::mutator_lock_, !compiled_classes_lock_); 585 void InitializeClasses(jobject class_loader, const DexFile& dex_file, 586 const std::vector<const DexFile*>& dex_files, 587 ThreadPool* thread_pool, TimingLogger* timings) 588 REQUIRES(!Locks::mutator_lock_, !compiled_classes_lock_); 589 590 void UpdateImageClasses(TimingLogger* timings) REQUIRES(!Locks::mutator_lock_); 591 static void FindClinitImageClassesCallback(mirror::Object* object, void* arg) 592 SHARED_REQUIRES(Locks::mutator_lock_); 593 594 void Compile(jobject class_loader, const std::vector<const DexFile*>& dex_files, 595 ThreadPool* thread_pool, TimingLogger* timings); 596 void CompileDexFile(jobject class_loader, const DexFile& dex_file, 597 const std::vector<const DexFile*>& dex_files, 598 ThreadPool* thread_pool, TimingLogger* timings) 599 REQUIRES(!Locks::mutator_lock_); 600 601 // Swap pool and allocator used for native allocations. May be file-backed. Needs to be first 602 // as other fields rely on this. 603 std::unique_ptr<SwapSpace> swap_space_; 604 std::unique_ptr<SwapAllocator<void> > swap_space_allocator_; 605 606 ProfileFile profile_file_; 607 bool profile_present_; 608 609 const CompilerOptions* const compiler_options_; 610 VerificationResults* const verification_results_; 611 DexFileToMethodInlinerMap* const method_inliner_map_; 612 613 std::unique_ptr<Compiler> compiler_; 614 Compiler::Kind compiler_kind_; 615 616 const InstructionSet instruction_set_; 617 const InstructionSetFeatures* const instruction_set_features_; 618 619 // All class references that require 620 mutable ReaderWriterMutex freezing_constructor_lock_ DEFAULT_MUTEX_ACQUIRED_AFTER; 621 std::set<ClassReference> freezing_constructor_classes_ GUARDED_BY(freezing_constructor_lock_); 622 623 typedef SafeMap<const ClassReference, CompiledClass*> ClassTable; 624 // All class references that this compiler has compiled. 625 mutable Mutex compiled_classes_lock_ DEFAULT_MUTEX_ACQUIRED_AFTER; 626 ClassTable compiled_classes_ GUARDED_BY(compiled_classes_lock_); 627 628 typedef SafeMap<const MethodReference, CompiledMethod*, MethodReferenceComparator> MethodTable; 629 630 public: 631 // Lock is public so that non-members can have lock annotations. 632 mutable Mutex compiled_methods_lock_ DEFAULT_MUTEX_ACQUIRED_AFTER; 633 634 private: 635 // All method references that this compiler has compiled. 636 MethodTable compiled_methods_ GUARDED_BY(compiled_methods_lock_); 637 // Number of non-relative patches in all compiled methods. These patches need space 638 // in the .oat_patches ELF section if requested in the compiler options. 639 size_t non_relative_linker_patch_count_ GUARDED_BY(compiled_methods_lock_); 640 641 const bool image_; 642 643 // If image_ is true, specifies the classes that will be included in 644 // the image. Note if image_classes_ is null, all classes are 645 // included in the image. 646 std::unique_ptr<std::unordered_set<std::string>> image_classes_; 647 648 // Specifies the classes that will be compiled. Note that if classes_to_compile_ is null, 649 // all classes are eligible for compilation (duplication filters etc. will still apply). 650 // This option may be restricted to the boot image, depending on a flag in the implementation. 651 std::unique_ptr<std::unordered_set<std::string>> classes_to_compile_; 652 653 // Specifies the methods that will be compiled. Note that if methods_to_compile_ is null, 654 // all methods are eligible for compilation (compilation filters etc. will still apply). 655 // This option may be restricted to the boot image, depending on a flag in the implementation. 656 std::unique_ptr<std::unordered_set<std::string>> methods_to_compile_; 657 658 bool had_hard_verifier_failure_; 659 660 size_t thread_count_; 661 662 class AOTCompilationStats; 663 std::unique_ptr<AOTCompilationStats> stats_; 664 665 bool dedupe_enabled_; 666 bool dump_stats_; 667 const bool dump_passes_; 668 const std::string dump_cfg_file_name_; 669 670 CumulativeLogger* const timings_logger_; 671 672 typedef void (*CompilerCallbackFn)(CompilerDriver& driver); 673 typedef MutexLock* (*CompilerMutexLockFn)(CompilerDriver& driver); 674 675 void* compiler_context_; 676 677 bool support_boot_image_fixup_; 678 679 // DeDuplication data structures, these own the corresponding byte arrays. 680 template <typename ContentType> 681 class DedupeHashFunc { 682 public: 683 size_t operator()(const ArrayRef<ContentType>& array) const { 684 const uint8_t* data = reinterpret_cast<const uint8_t*>(array.data()); 685 static_assert(IsPowerOfTwo(sizeof(ContentType)), 686 "ContentType is not power of two, don't know whether array layout is as assumed"); 687 uint32_t len = sizeof(ContentType) * array.size(); 688 if (kUseMurmur3Hash) { 689 static constexpr uint32_t c1 = 0xcc9e2d51; 690 static constexpr uint32_t c2 = 0x1b873593; 691 static constexpr uint32_t r1 = 15; 692 static constexpr uint32_t r2 = 13; 693 static constexpr uint32_t m = 5; 694 static constexpr uint32_t n = 0xe6546b64; 695 696 uint32_t hash = 0; 697 698 const int nblocks = len / 4; 699 typedef __attribute__((__aligned__(1))) uint32_t unaligned_uint32_t; 700 const unaligned_uint32_t *blocks = reinterpret_cast<const uint32_t*>(data); 701 int i; 702 for (i = 0; i < nblocks; i++) { 703 uint32_t k = blocks[i]; 704 k *= c1; 705 k = (k << r1) | (k >> (32 - r1)); 706 k *= c2; 707 708 hash ^= k; 709 hash = ((hash << r2) | (hash >> (32 - r2))) * m + n; 710 } 711 712 const uint8_t *tail = reinterpret_cast<const uint8_t*>(data + nblocks * 4); 713 uint32_t k1 = 0; 714 715 switch (len & 3) { 716 case 3: 717 k1 ^= tail[2] << 16; 718 FALLTHROUGH_INTENDED; 719 case 2: 720 k1 ^= tail[1] << 8; 721 FALLTHROUGH_INTENDED; 722 case 1: 723 k1 ^= tail[0]; 724 725 k1 *= c1; 726 k1 = (k1 << r1) | (k1 >> (32 - r1)); 727 k1 *= c2; 728 hash ^= k1; 729 } 730 731 hash ^= len; 732 hash ^= (hash >> 16); 733 hash *= 0x85ebca6b; 734 hash ^= (hash >> 13); 735 hash *= 0xc2b2ae35; 736 hash ^= (hash >> 16); 737 738 return hash; 739 } else { 740 size_t hash = 0x811c9dc5; 741 for (uint32_t i = 0; i < len; ++i) { 742 hash = (hash * 16777619) ^ data[i]; 743 } 744 hash += hash << 13; 745 hash ^= hash >> 7; 746 hash += hash << 3; 747 hash ^= hash >> 17; 748 hash += hash << 5; 749 return hash; 750 } 751 } 752 }; 753 754 DedupeSet<ArrayRef<const uint8_t>, 755 SwapVector<uint8_t>, size_t, DedupeHashFunc<const uint8_t>, 4> dedupe_code_; 756 DedupeSet<ArrayRef<SrcMapElem>, 757 SwapSrcMap, size_t, DedupeHashFunc<SrcMapElem>, 4> dedupe_src_mapping_table_; 758 DedupeSet<ArrayRef<const uint8_t>, 759 SwapVector<uint8_t>, size_t, DedupeHashFunc<const uint8_t>, 4> dedupe_mapping_table_; 760 DedupeSet<ArrayRef<const uint8_t>, 761 SwapVector<uint8_t>, size_t, DedupeHashFunc<const uint8_t>, 4> dedupe_vmap_table_; 762 DedupeSet<ArrayRef<const uint8_t>, 763 SwapVector<uint8_t>, size_t, DedupeHashFunc<const uint8_t>, 4> dedupe_gc_map_; 764 DedupeSet<ArrayRef<const uint8_t>, 765 SwapVector<uint8_t>, size_t, DedupeHashFunc<const uint8_t>, 4> dedupe_cfi_info_; 766 767 friend class CompileClassVisitor; 768 DISALLOW_COPY_AND_ASSIGN(CompilerDriver); 769}; 770 771} // namespace art 772 773#endif // ART_COMPILER_DRIVER_COMPILER_DRIVER_H_ 774