compiler_driver.h revision 736b560f2d2c89b63dc895888c671b5519afa4c8
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(const ScopedObjectAccess& soa, 230 const DexCompilationUnit* mUnit) 231 SHARED_REQUIRES(Locks::mutator_lock_); 232 233 // Resolve compiling method's class. Returns null on failure. 234 mirror::Class* ResolveCompilingMethodsClass( 235 const ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache, 236 Handle<mirror::ClassLoader> class_loader, const DexCompilationUnit* mUnit) 237 SHARED_REQUIRES(Locks::mutator_lock_); 238 239 mirror::Class* ResolveClass( 240 const ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache, 241 Handle<mirror::ClassLoader> class_loader, uint16_t type_index, 242 const DexCompilationUnit* mUnit) 243 SHARED_REQUIRES(Locks::mutator_lock_); 244 245 // Resolve a field. Returns null on failure, including incompatible class change. 246 // NOTE: Unlike ClassLinker's ResolveField(), this method enforces is_static. 247 ArtField* ResolveField( 248 const ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache, 249 Handle<mirror::ClassLoader> class_loader, const DexCompilationUnit* mUnit, 250 uint32_t field_idx, bool is_static) 251 SHARED_REQUIRES(Locks::mutator_lock_); 252 253 // Resolve a field with a given dex file. 254 ArtField* ResolveFieldWithDexFile( 255 const ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache, 256 Handle<mirror::ClassLoader> class_loader, const DexFile* dex_file, 257 uint32_t field_idx, bool is_static) 258 SHARED_REQUIRES(Locks::mutator_lock_); 259 260 // Get declaration location of a resolved field. 261 void GetResolvedFieldDexFileLocation( 262 ArtField* resolved_field, const DexFile** declaring_dex_file, 263 uint16_t* declaring_class_idx, uint16_t* declaring_field_idx) 264 SHARED_REQUIRES(Locks::mutator_lock_); 265 266 bool IsFieldVolatile(ArtField* field) SHARED_REQUIRES(Locks::mutator_lock_); 267 MemberOffset GetFieldOffset(ArtField* field) SHARED_REQUIRES(Locks::mutator_lock_); 268 269 // Find a dex cache for a dex file. 270 inline mirror::DexCache* FindDexCache(const DexFile* dex_file) 271 SHARED_REQUIRES(Locks::mutator_lock_); 272 273 // Can we fast-path an IGET/IPUT access to an instance field? If yes, compute the field offset. 274 std::pair<bool, bool> IsFastInstanceField( 275 mirror::DexCache* dex_cache, mirror::Class* referrer_class, 276 ArtField* resolved_field, uint16_t field_idx) 277 SHARED_REQUIRES(Locks::mutator_lock_); 278 279 // Can we fast-path an SGET/SPUT access to a static field? If yes, compute the type index 280 // of the declaring class in the referrer's dex file. 281 std::pair<bool, bool> IsFastStaticField( 282 mirror::DexCache* dex_cache, mirror::Class* referrer_class, 283 ArtField* resolved_field, uint16_t field_idx, uint32_t* storage_index) 284 SHARED_REQUIRES(Locks::mutator_lock_); 285 286 // Return whether the declaring class of `resolved_method` is 287 // available to `referrer_class`. If this is true, compute the type 288 // index of the declaring class in the referrer's dex file and 289 // return it through the out argument `storage_index`; otherwise 290 // return DexFile::kDexNoIndex through `storage_index`. 291 bool IsClassOfStaticMethodAvailableToReferrer(mirror::DexCache* dex_cache, 292 mirror::Class* referrer_class, 293 ArtMethod* resolved_method, 294 uint16_t method_idx, 295 uint32_t* storage_index) 296 SHARED_REQUIRES(Locks::mutator_lock_); 297 298 // Is static field's in referrer's class? 299 bool IsStaticFieldInReferrerClass(mirror::Class* referrer_class, ArtField* resolved_field) 300 SHARED_REQUIRES(Locks::mutator_lock_); 301 302 // Is static field's class initialized? 303 bool IsStaticFieldsClassInitialized(mirror::Class* referrer_class, 304 ArtField* resolved_field) 305 SHARED_REQUIRES(Locks::mutator_lock_); 306 307 // Resolve a method. Returns null on failure, including incompatible class change. 308 ArtMethod* ResolveMethod( 309 ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache, 310 Handle<mirror::ClassLoader> class_loader, const DexCompilationUnit* mUnit, 311 uint32_t method_idx, InvokeType invoke_type, bool check_incompatible_class_change = true) 312 SHARED_REQUIRES(Locks::mutator_lock_); 313 314 // Get declaration location of a resolved field. 315 void GetResolvedMethodDexFileLocation( 316 ArtMethod* resolved_method, const DexFile** declaring_dex_file, 317 uint16_t* declaring_class_idx, uint16_t* declaring_method_idx) 318 SHARED_REQUIRES(Locks::mutator_lock_); 319 320 // Get the index in the vtable of the method. 321 uint16_t GetResolvedMethodVTableIndex( 322 ArtMethod* resolved_method, InvokeType type) 323 SHARED_REQUIRES(Locks::mutator_lock_); 324 325 // Can we fast-path an INVOKE? If no, returns 0. If yes, returns a non-zero opaque flags value 326 // for ProcessedInvoke() and computes the necessary lowering info. 327 int IsFastInvoke( 328 ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache, 329 Handle<mirror::ClassLoader> class_loader, const DexCompilationUnit* mUnit, 330 mirror::Class* referrer_class, ArtMethod* resolved_method, InvokeType* invoke_type, 331 MethodReference* target_method, const MethodReference* devirt_target, 332 uintptr_t* direct_code, uintptr_t* direct_method) 333 SHARED_REQUIRES(Locks::mutator_lock_); 334 335 // Is method's class initialized for an invoke? 336 // For static invokes to determine whether we need to consider potential call to <clinit>(). 337 // For non-static invokes, assuming a non-null reference, the class is always initialized. 338 bool IsMethodsClassInitialized(mirror::Class* referrer_class, ArtMethod* resolved_method) 339 SHARED_REQUIRES(Locks::mutator_lock_); 340 341 // Get the layout of dex cache arrays for a dex file. Returns invalid layout if the 342 // dex cache arrays don't have a fixed layout. 343 DexCacheArraysLayout GetDexCacheArraysLayout(const DexFile* dex_file); 344 345 void ProcessedInstanceField(bool resolved); 346 void ProcessedStaticField(bool resolved, bool local); 347 void ProcessedInvoke(InvokeType invoke_type, int flags); 348 349 void ComputeFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, 350 const ScopedObjectAccess& soa, bool is_static, 351 ArtField** resolved_field, 352 mirror::Class** referrer_class, 353 mirror::DexCache** dex_cache) 354 SHARED_REQUIRES(Locks::mutator_lock_); 355 356 // Can we fast path instance field access? Computes field's offset and volatility. 357 bool ComputeInstanceFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, bool is_put, 358 MemberOffset* field_offset, bool* is_volatile) 359 REQUIRES(!Locks::mutator_lock_); 360 361 ArtField* ComputeInstanceFieldInfo(uint32_t field_idx, 362 const DexCompilationUnit* mUnit, 363 bool is_put, 364 const ScopedObjectAccess& soa) 365 SHARED_REQUIRES(Locks::mutator_lock_); 366 367 368 // Can we fastpath static field access? Computes field's offset, volatility and whether the 369 // field is within the referrer (which can avoid checking class initialization). 370 bool ComputeStaticFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, bool is_put, 371 MemberOffset* field_offset, uint32_t* storage_index, 372 bool* is_referrers_class, bool* is_volatile, bool* is_initialized, 373 Primitive::Type* type) 374 REQUIRES(!Locks::mutator_lock_); 375 376 // Can we fastpath a interface, super class or virtual method call? Computes method's vtable 377 // index. 378 bool ComputeInvokeInfo(const DexCompilationUnit* mUnit, const uint32_t dex_pc, 379 bool update_stats, bool enable_devirtualization, 380 InvokeType* type, MethodReference* target_method, int* vtable_idx, 381 uintptr_t* direct_code, uintptr_t* direct_method) 382 REQUIRES(!Locks::mutator_lock_); 383 384 const VerifiedMethod* GetVerifiedMethod(const DexFile* dex_file, uint32_t method_idx) const; 385 bool IsSafeCast(const DexCompilationUnit* mUnit, uint32_t dex_pc); 386 387 bool GetSupportBootImageFixup() const { 388 return support_boot_image_fixup_; 389 } 390 391 void SetSupportBootImageFixup(bool support_boot_image_fixup) { 392 support_boot_image_fixup_ = support_boot_image_fixup; 393 } 394 395 SwapAllocator<void>& GetSwapSpaceAllocator() { 396 return *swap_space_allocator_.get(); 397 } 398 399 bool WriteElf(const std::string& android_root, 400 bool is_host, 401 const std::vector<const DexFile*>& dex_files, 402 OatWriter* oat_writer, 403 File* file); 404 405 void SetCompilerContext(void* compiler_context) { 406 compiler_context_ = compiler_context; 407 } 408 409 void* GetCompilerContext() const { 410 return compiler_context_; 411 } 412 413 size_t GetThreadCount() const { 414 return thread_count_; 415 } 416 417 bool GetDumpStats() const { 418 return dump_stats_; 419 } 420 421 bool GetDumpPasses() const { 422 return dump_passes_; 423 } 424 425 const std::string& GetDumpCfgFileName() const { 426 return dump_cfg_file_name_; 427 } 428 429 CumulativeLogger* GetTimingsLogger() const { 430 return timings_logger_; 431 } 432 433 void SetDedupeEnabled(bool dedupe_enabled) { 434 dedupe_enabled_ = dedupe_enabled; 435 } 436 bool DedupeEnabled() const { 437 return dedupe_enabled_; 438 } 439 440 // Checks if class specified by type_idx is one of the image_classes_ 441 bool IsImageClass(const char* descriptor) const; 442 443 // Checks whether the provided class should be compiled, i.e., is in classes_to_compile_. 444 bool IsClassToCompile(const char* descriptor) const; 445 446 // Checks whether the provided method should be compiled, i.e., is in method_to_compile_. 447 bool IsMethodToCompile(const MethodReference& method_ref) const; 448 449 void RecordClassStatus(ClassReference ref, mirror::Class::Status status) 450 REQUIRES(!compiled_classes_lock_); 451 452 // Checks if the specified method has been verified without failures. Returns 453 // false if the method is not in the verification results (GetVerificationResults). 454 bool IsMethodVerifiedWithoutFailures(uint32_t method_idx, 455 uint16_t class_def_idx, 456 const DexFile& dex_file) const; 457 458 SwapVector<uint8_t>* DeduplicateCode(const ArrayRef<const uint8_t>& code); 459 SwapSrcMap* DeduplicateSrcMappingTable(const ArrayRef<SrcMapElem>& src_map); 460 SwapVector<uint8_t>* DeduplicateMappingTable(const ArrayRef<const uint8_t>& code); 461 SwapVector<uint8_t>* DeduplicateVMapTable(const ArrayRef<const uint8_t>& code); 462 SwapVector<uint8_t>* DeduplicateGCMap(const ArrayRef<const uint8_t>& code); 463 SwapVector<uint8_t>* DeduplicateCFIInfo(const ArrayRef<const uint8_t>& cfi_info); 464 465 // Should the compiler run on this method given profile information? 466 bool SkipCompilation(const std::string& method_name); 467 468 // Get memory usage during compilation. 469 std::string GetMemoryUsageString(bool extended) const; 470 471 bool IsStringTypeIndex(uint16_t type_index, const DexFile* dex_file); 472 bool IsStringInit(uint32_t method_index, const DexFile* dex_file, int32_t* offset); 473 474 void SetHadHardVerifierFailure() { 475 had_hard_verifier_failure_ = true; 476 } 477 478 Compiler::Kind GetCompilerKind() { 479 return compiler_kind_; 480 } 481 482 private: 483 // Return whether the declaring class of `resolved_member` is 484 // available to `referrer_class` for read or write access using two 485 // Boolean values returned as a pair. If is true at least for read 486 // access, compute the type index of the declaring class in the 487 // referrer's dex file and return it through the out argument 488 // `storage_index`; otherwise return DexFile::kDexNoIndex through 489 // `storage_index`. 490 template <typename ArtMember> 491 std::pair<bool, bool> IsClassOfStaticMemberAvailableToReferrer(mirror::DexCache* dex_cache, 492 mirror::Class* referrer_class, 493 ArtMember* resolved_member, 494 uint16_t member_idx, 495 uint32_t* storage_index) 496 SHARED_REQUIRES(Locks::mutator_lock_); 497 498 // Can `referrer_class` access the resolved `member`? 499 // Dispatch call to mirror::Class::CanAccessResolvedField or 500 // mirror::Class::CanAccessResolvedMember depending on the value of 501 // ArtMember. 502 template <typename ArtMember> 503 static bool CanAccessResolvedMember(mirror::Class* referrer_class, 504 mirror::Class* access_to, 505 ArtMember* member, 506 mirror::DexCache* dex_cache, 507 uint32_t field_idx) 508 SHARED_REQUIRES(Locks::mutator_lock_); 509 510 // Can we assume that the klass is initialized? 511 bool CanAssumeClassIsInitialized(mirror::Class* klass) 512 SHARED_REQUIRES(Locks::mutator_lock_); 513 bool CanReferrerAssumeClassIsInitialized(mirror::Class* referrer_class, mirror::Class* klass) 514 SHARED_REQUIRES(Locks::mutator_lock_); 515 516 // Can we assume that the klass is loaded? 517 bool CanAssumeClassIsLoaded(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, const std::vector<const DexFile*>& dex_files, 553 ThreadPool* thread_pool, TimingLogger* timings) 554 REQUIRES(!Locks::mutator_lock_, !compiled_classes_lock_); 555 556 void LoadImageClasses(TimingLogger* timings) REQUIRES(!Locks::mutator_lock_); 557 558 // Attempt to resolve all type, methods, fields, and strings 559 // referenced from code in the dex file following PathClassLoader 560 // ordering semantics. 561 void Resolve(jobject class_loader, const std::vector<const DexFile*>& dex_files, 562 ThreadPool* thread_pool, TimingLogger* timings) 563 REQUIRES(!Locks::mutator_lock_); 564 void ResolveDexFile(jobject class_loader, const DexFile& dex_file, 565 const std::vector<const DexFile*>& dex_files, 566 ThreadPool* thread_pool, TimingLogger* timings) 567 REQUIRES(!Locks::mutator_lock_); 568 569 void Verify(jobject class_loader, const std::vector<const DexFile*>& dex_files, 570 ThreadPool* thread_pool, TimingLogger* timings); 571 void VerifyDexFile(jobject class_loader, const DexFile& dex_file, 572 const std::vector<const DexFile*>& dex_files, 573 ThreadPool* thread_pool, TimingLogger* timings) 574 REQUIRES(!Locks::mutator_lock_); 575 576 void SetVerified(jobject class_loader, const std::vector<const DexFile*>& dex_files, 577 ThreadPool* thread_pool, TimingLogger* timings); 578 void SetVerifiedDexFile(jobject class_loader, const DexFile& dex_file, 579 const std::vector<const DexFile*>& dex_files, 580 ThreadPool* thread_pool, TimingLogger* timings) 581 REQUIRES(!Locks::mutator_lock_); 582 583 void InitializeClasses(jobject class_loader, const std::vector<const DexFile*>& dex_files, 584 ThreadPool* thread_pool, TimingLogger* timings) 585 REQUIRES(!Locks::mutator_lock_, !compiled_classes_lock_); 586 void InitializeClasses(jobject class_loader, const DexFile& dex_file, 587 const std::vector<const DexFile*>& dex_files, 588 ThreadPool* thread_pool, TimingLogger* timings) 589 REQUIRES(!Locks::mutator_lock_, !compiled_classes_lock_); 590 591 void UpdateImageClasses(TimingLogger* timings) REQUIRES(!Locks::mutator_lock_); 592 static void FindClinitImageClassesCallback(mirror::Object* object, void* arg) 593 SHARED_REQUIRES(Locks::mutator_lock_); 594 595 void Compile(jobject class_loader, const std::vector<const DexFile*>& dex_files, 596 ThreadPool* thread_pool, TimingLogger* timings); 597 void CompileDexFile(jobject class_loader, const DexFile& dex_file, 598 const std::vector<const DexFile*>& dex_files, 599 ThreadPool* thread_pool, TimingLogger* timings) 600 REQUIRES(!Locks::mutator_lock_); 601 602 // Swap pool and allocator used for native allocations. May be file-backed. Needs to be first 603 // as other fields rely on this. 604 std::unique_ptr<SwapSpace> swap_space_; 605 std::unique_ptr<SwapAllocator<void> > swap_space_allocator_; 606 607 ProfileFile profile_file_; 608 bool profile_present_; 609 610 const CompilerOptions* const compiler_options_; 611 VerificationResults* const verification_results_; 612 DexFileToMethodInlinerMap* const method_inliner_map_; 613 614 std::unique_ptr<Compiler> compiler_; 615 Compiler::Kind compiler_kind_; 616 617 const InstructionSet instruction_set_; 618 const InstructionSetFeatures* const instruction_set_features_; 619 620 // All class references that require 621 mutable ReaderWriterMutex freezing_constructor_lock_ DEFAULT_MUTEX_ACQUIRED_AFTER; 622 std::set<ClassReference> freezing_constructor_classes_ GUARDED_BY(freezing_constructor_lock_); 623 624 typedef SafeMap<const ClassReference, CompiledClass*> ClassTable; 625 // All class references that this compiler has compiled. 626 mutable Mutex compiled_classes_lock_ DEFAULT_MUTEX_ACQUIRED_AFTER; 627 ClassTable compiled_classes_ GUARDED_BY(compiled_classes_lock_); 628 629 typedef SafeMap<const MethodReference, CompiledMethod*, MethodReferenceComparator> MethodTable; 630 631 public: 632 // Lock is public so that non-members can have lock annotations. 633 mutable Mutex compiled_methods_lock_ DEFAULT_MUTEX_ACQUIRED_AFTER; 634 635 private: 636 // All method references that this compiler has compiled. 637 MethodTable compiled_methods_ GUARDED_BY(compiled_methods_lock_); 638 // Number of non-relative patches in all compiled methods. These patches need space 639 // in the .oat_patches ELF section if requested in the compiler options. 640 size_t non_relative_linker_patch_count_ GUARDED_BY(compiled_methods_lock_); 641 642 const bool image_; 643 644 // If image_ is true, specifies the classes that will be included in 645 // the image. Note if image_classes_ is null, all classes are 646 // included in the image. 647 std::unique_ptr<std::unordered_set<std::string>> image_classes_; 648 649 // Specifies the classes that will be compiled. Note that if classes_to_compile_ is null, 650 // all classes are eligible for compilation (duplication filters etc. will still apply). 651 // This option may be restricted to the boot image, depending on a flag in the implementation. 652 std::unique_ptr<std::unordered_set<std::string>> classes_to_compile_; 653 654 // Specifies the methods that will be compiled. Note that if methods_to_compile_ is null, 655 // all methods are eligible for compilation (compilation filters etc. will still apply). 656 // This option may be restricted to the boot image, depending on a flag in the implementation. 657 std::unique_ptr<std::unordered_set<std::string>> methods_to_compile_; 658 659 bool had_hard_verifier_failure_; 660 661 size_t thread_count_; 662 663 class AOTCompilationStats; 664 std::unique_ptr<AOTCompilationStats> stats_; 665 666 bool dedupe_enabled_; 667 bool dump_stats_; 668 const bool dump_passes_; 669 const std::string dump_cfg_file_name_; 670 671 CumulativeLogger* const timings_logger_; 672 673 typedef void (*CompilerCallbackFn)(CompilerDriver& driver); 674 typedef MutexLock* (*CompilerMutexLockFn)(CompilerDriver& driver); 675 676 void* compiler_context_; 677 678 bool support_boot_image_fixup_; 679 680 // DeDuplication data structures, these own the corresponding byte arrays. 681 template <typename ContentType> 682 class DedupeHashFunc { 683 public: 684 size_t operator()(const ArrayRef<ContentType>& array) const { 685 const uint8_t* data = reinterpret_cast<const uint8_t*>(array.data()); 686 static_assert(IsPowerOfTwo(sizeof(ContentType)), 687 "ContentType is not power of two, don't know whether array layout is as assumed"); 688 uint32_t len = sizeof(ContentType) * array.size(); 689 if (kUseMurmur3Hash) { 690 static constexpr uint32_t c1 = 0xcc9e2d51; 691 static constexpr uint32_t c2 = 0x1b873593; 692 static constexpr uint32_t r1 = 15; 693 static constexpr uint32_t r2 = 13; 694 static constexpr uint32_t m = 5; 695 static constexpr uint32_t n = 0xe6546b64; 696 697 uint32_t hash = 0; 698 699 const int nblocks = len / 4; 700 typedef __attribute__((__aligned__(1))) uint32_t unaligned_uint32_t; 701 const unaligned_uint32_t *blocks = reinterpret_cast<const uint32_t*>(data); 702 int i; 703 for (i = 0; i < nblocks; i++) { 704 uint32_t k = blocks[i]; 705 k *= c1; 706 k = (k << r1) | (k >> (32 - r1)); 707 k *= c2; 708 709 hash ^= k; 710 hash = ((hash << r2) | (hash >> (32 - r2))) * m + n; 711 } 712 713 const uint8_t *tail = reinterpret_cast<const uint8_t*>(data + nblocks * 4); 714 uint32_t k1 = 0; 715 716 switch (len & 3) { 717 case 3: 718 k1 ^= tail[2] << 16; 719 FALLTHROUGH_INTENDED; 720 case 2: 721 k1 ^= tail[1] << 8; 722 FALLTHROUGH_INTENDED; 723 case 1: 724 k1 ^= tail[0]; 725 726 k1 *= c1; 727 k1 = (k1 << r1) | (k1 >> (32 - r1)); 728 k1 *= c2; 729 hash ^= k1; 730 } 731 732 hash ^= len; 733 hash ^= (hash >> 16); 734 hash *= 0x85ebca6b; 735 hash ^= (hash >> 13); 736 hash *= 0xc2b2ae35; 737 hash ^= (hash >> 16); 738 739 return hash; 740 } else { 741 size_t hash = 0x811c9dc5; 742 for (uint32_t i = 0; i < len; ++i) { 743 hash = (hash * 16777619) ^ data[i]; 744 } 745 hash += hash << 13; 746 hash ^= hash >> 7; 747 hash += hash << 3; 748 hash ^= hash >> 17; 749 hash += hash << 5; 750 return hash; 751 } 752 } 753 }; 754 755 DedupeSet<ArrayRef<const uint8_t>, 756 SwapVector<uint8_t>, size_t, DedupeHashFunc<const uint8_t>, 4> dedupe_code_; 757 DedupeSet<ArrayRef<SrcMapElem>, 758 SwapSrcMap, size_t, DedupeHashFunc<SrcMapElem>, 4> dedupe_src_mapping_table_; 759 DedupeSet<ArrayRef<const uint8_t>, 760 SwapVector<uint8_t>, size_t, DedupeHashFunc<const uint8_t>, 4> dedupe_mapping_table_; 761 DedupeSet<ArrayRef<const uint8_t>, 762 SwapVector<uint8_t>, size_t, DedupeHashFunc<const uint8_t>, 4> dedupe_vmap_table_; 763 DedupeSet<ArrayRef<const uint8_t>, 764 SwapVector<uint8_t>, size_t, DedupeHashFunc<const uint8_t>, 4> dedupe_gc_map_; 765 DedupeSet<ArrayRef<const uint8_t>, 766 SwapVector<uint8_t>, size_t, DedupeHashFunc<const uint8_t>, 4> dedupe_cfi_info_; 767 768 friend class CompileClassVisitor; 769 DISALLOW_COPY_AND_ASSIGN(CompilerDriver); 770}; 771 772} // namespace art 773 774#endif // ART_COMPILER_DRIVER_COMPILER_DRIVER_H_ 775