compiler_driver.h revision 20f85597828194c12be10d3a927999def066555e
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 <vector> 23 24#include "arch/instruction_set.h" 25#include "base/arena_allocator.h" 26#include "base/mutex.h" 27#include "base/timing_logger.h" 28#include "class_reference.h" 29#include "compiler.h" 30#include "dex_file.h" 31#include "invoke_type.h" 32#include "method_reference.h" 33#include "mirror/class.h" // For mirror::Class::Status. 34#include "os.h" 35#include "profiler.h" 36#include "runtime.h" 37#include "safe_map.h" 38#include "thread_pool.h" 39#include "utils/array_ref.h" 40#include "utils/dedupe_set.h" 41#include "utils/dex_cache_arrays_layout.h" 42#include "utils/swap_space.h" 43#include "utils.h" 44 45namespace art { 46 47namespace mirror { 48class DexCache; 49} // namespace mirror 50 51namespace verifier { 52class MethodVerifier; 53} // namespace verifier 54 55class CompiledClass; 56class CompiledMethod; 57class CompilerOptions; 58class DexCompilationUnit; 59class DexFileToMethodInlinerMap; 60struct InlineIGetIPutData; 61class InstructionSetFeatures; 62class OatWriter; 63class ParallelCompilationManager; 64class ScopedObjectAccess; 65template <class Allocator> class SrcMap; 66class SrcMapElem; 67using SwapSrcMap = SrcMap<SwapAllocator<SrcMapElem>>; 68template<class T> class Handle; 69class TimingLogger; 70class VerificationResults; 71class VerifiedMethod; 72 73enum 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 82enum DexToDexCompilationLevel { 83 kDontDexToDexCompile, // Only meaning wrt image time interpretation. 84 kRequired, // Dex-to-dex compilation required for correctness. 85 kOptimize // Perform required transformation and peep-hole optimizations. 86}; 87std::ostream& operator<<(std::ostream& os, const DexToDexCompilationLevel& rhs); 88 89static constexpr bool kUseMurmur3Hash = true; 90 91class CompilerDriver { 92 public: 93 // Create a compiler targeting the requested "instruction_set". 94 // "image" should be true if image specific optimizations should be 95 // enabled. "image_classes" lets the compiler know what classes it 96 // can assume will be in the image, with nullptr implying all available 97 // classes. 98 explicit CompilerDriver(const CompilerOptions* compiler_options, 99 VerificationResults* verification_results, 100 DexFileToMethodInlinerMap* method_inliner_map, 101 Compiler::Kind compiler_kind, 102 InstructionSet instruction_set, 103 const InstructionSetFeatures* instruction_set_features, 104 bool image, std::set<std::string>* image_classes, 105 std::set<std::string>* compiled_classes, 106 size_t thread_count, bool dump_stats, bool dump_passes, 107 const std::string& dump_cfg_file_name, 108 CumulativeLogger* timer, int swap_fd, 109 const std::string& profile_file); 110 111 ~CompilerDriver(); 112 113 void CompileAll(jobject class_loader, const std::vector<const DexFile*>& dex_files, 114 TimingLogger* timings) 115 LOCKS_EXCLUDED(Locks::mutator_lock_); 116 117 CompiledMethod* CompileMethod(Thread* self, mirror::ArtMethod*) 118 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) WARN_UNUSED; 119 120 // Compile a single Method. 121 void CompileOne(Thread* self, mirror::ArtMethod* method, TimingLogger* timings) 122 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 123 124 VerificationResults* GetVerificationResults() const { 125 return verification_results_; 126 } 127 128 DexFileToMethodInlinerMap* GetMethodInlinerMap() const { 129 return method_inliner_map_; 130 } 131 132 InstructionSet GetInstructionSet() const { 133 return instruction_set_; 134 } 135 136 const InstructionSetFeatures* GetInstructionSetFeatures() const { 137 return instruction_set_features_; 138 } 139 140 const CompilerOptions& GetCompilerOptions() const { 141 return *compiler_options_; 142 } 143 144 Compiler* GetCompiler() const { 145 return compiler_.get(); 146 } 147 148 bool ProfilePresent() const { 149 return profile_present_; 150 } 151 152 // Are we compiling and creating an image file? 153 bool IsImage() const { 154 return image_; 155 } 156 157 const std::set<std::string>* GetImageClasses() const { 158 return image_classes_.get(); 159 } 160 161 // Generate the trampolines that are invoked by unresolved direct methods. 162 const std::vector<uint8_t>* CreateInterpreterToInterpreterBridge() const 163 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 164 const std::vector<uint8_t>* CreateInterpreterToCompiledCodeBridge() const 165 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 166 const std::vector<uint8_t>* CreateJniDlsymLookup() const 167 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 168 const std::vector<uint8_t>* CreateQuickGenericJniTrampoline() const 169 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 170 const std::vector<uint8_t>* CreateQuickImtConflictTrampoline() const 171 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 172 const std::vector<uint8_t>* CreateQuickResolutionTrampoline() const 173 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 174 const std::vector<uint8_t>* CreateQuickToInterpreterBridge() const 175 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 176 177 CompiledClass* GetCompiledClass(ClassReference ref) const 178 LOCKS_EXCLUDED(compiled_classes_lock_); 179 180 CompiledMethod* GetCompiledMethod(MethodReference ref) const 181 LOCKS_EXCLUDED(compiled_methods_lock_); 182 size_t GetNonRelativeLinkerPatchCount() const 183 LOCKS_EXCLUDED(compiled_methods_lock_); 184 185 // Remove and delete a compiled method. 186 void RemoveCompiledMethod(const MethodReference& method_ref); 187 188 void AddRequiresConstructorBarrier(Thread* self, const DexFile* dex_file, 189 uint16_t class_def_index); 190 bool RequiresConstructorBarrier(Thread* self, const DexFile* dex_file, uint16_t class_def_index); 191 192 // Callbacks from compiler to see what runtime checks must be generated. 193 194 bool CanAssumeTypeIsPresentInDexCache(const DexFile& dex_file, uint32_t type_idx); 195 196 bool CanAssumeStringIsPresentInDexCache(const DexFile& dex_file, uint32_t string_idx) 197 LOCKS_EXCLUDED(Locks::mutator_lock_); 198 199 // Are runtime access checks necessary in the compiled code? 200 bool CanAccessTypeWithoutChecks(uint32_t referrer_idx, const DexFile& dex_file, 201 uint32_t type_idx, bool* type_known_final = nullptr, 202 bool* type_known_abstract = nullptr, 203 bool* equals_referrers_class = nullptr) 204 LOCKS_EXCLUDED(Locks::mutator_lock_); 205 206 // Are runtime access and instantiable checks necessary in the code? 207 bool CanAccessInstantiableTypeWithoutChecks(uint32_t referrer_idx, const DexFile& dex_file, 208 uint32_t type_idx) 209 LOCKS_EXCLUDED(Locks::mutator_lock_); 210 211 bool CanEmbedTypeInCode(const DexFile& dex_file, uint32_t type_idx, 212 bool* is_type_initialized, bool* use_direct_type_ptr, 213 uintptr_t* direct_type_ptr, bool* out_is_finalizable); 214 215 // Query methods for the java.lang.ref.Reference class. 216 bool CanEmbedReferenceTypeInCode(ClassReference* ref, 217 bool* use_direct_type_ptr, uintptr_t* direct_type_ptr); 218 uint32_t GetReferenceSlowFlagOffset() const; 219 uint32_t GetReferenceDisableFlagOffset() const; 220 221 // Get the DexCache for the 222 mirror::DexCache* GetDexCache(const DexCompilationUnit* mUnit) 223 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 224 225 mirror::ClassLoader* GetClassLoader(ScopedObjectAccess& soa, const DexCompilationUnit* mUnit) 226 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 227 228 // Resolve compiling method's class. Returns nullptr on failure. 229 mirror::Class* ResolveCompilingMethodsClass( 230 const ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache, 231 Handle<mirror::ClassLoader> class_loader, const DexCompilationUnit* mUnit) 232 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 233 234 mirror::Class* ResolveClass( 235 const ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache, 236 Handle<mirror::ClassLoader> class_loader, uint16_t type_index, 237 const DexCompilationUnit* mUnit) 238 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 239 240 // Resolve a field. Returns nullptr on failure, including incompatible class change. 241 // NOTE: Unlike ClassLinker's ResolveField(), this method enforces is_static. 242 mirror::ArtField* ResolveField( 243 const ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache, 244 Handle<mirror::ClassLoader> class_loader, const DexCompilationUnit* mUnit, 245 uint32_t field_idx, bool is_static) 246 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 247 248 // Resolve a field with a given dex file. 249 mirror::ArtField* ResolveFieldWithDexFile( 250 const ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache, 251 Handle<mirror::ClassLoader> class_loader, const DexFile* dex_file, 252 uint32_t field_idx, bool is_static) 253 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 254 255 // Get declaration location of a resolved field. 256 void GetResolvedFieldDexFileLocation( 257 mirror::ArtField* resolved_field, const DexFile** declaring_dex_file, 258 uint16_t* declaring_class_idx, uint16_t* declaring_field_idx) 259 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 260 261 bool IsFieldVolatile(mirror::ArtField* field) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 262 MemberOffset GetFieldOffset(mirror::ArtField* field) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 263 264 // Find a dex cache for a dex file. 265 inline mirror::DexCache* FindDexCache(const DexFile* dex_file) 266 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 267 268 // Can we fast-path an IGET/IPUT access to an instance field? If yes, compute the field offset. 269 std::pair<bool, bool> IsFastInstanceField( 270 mirror::DexCache* dex_cache, mirror::Class* referrer_class, 271 mirror::ArtField* resolved_field, uint16_t field_idx) 272 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 273 274 // Can we fast-path an SGET/SPUT access to a static field? If yes, compute the type index 275 // of the declaring class in the referrer's dex file. 276 std::pair<bool, bool> IsFastStaticField( 277 mirror::DexCache* dex_cache, mirror::Class* referrer_class, 278 mirror::ArtField* resolved_field, uint16_t field_idx, uint32_t* storage_index) 279 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 280 281 // Is static field's in referrer's class? 282 bool IsStaticFieldInReferrerClass(mirror::Class* referrer_class, mirror::ArtField* resolved_field) 283 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 284 285 // Is static field's class initialized? 286 bool IsStaticFieldsClassInitialized(mirror::Class* referrer_class, 287 mirror::ArtField* resolved_field) 288 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 289 290 // Resolve a method. Returns nullptr on failure, including incompatible class change. 291 mirror::ArtMethod* ResolveMethod( 292 ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache, 293 Handle<mirror::ClassLoader> class_loader, const DexCompilationUnit* mUnit, 294 uint32_t method_idx, InvokeType invoke_type, bool check_incompatible_class_change = true) 295 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 296 297 // Get declaration location of a resolved field. 298 void GetResolvedMethodDexFileLocation( 299 mirror::ArtMethod* resolved_method, const DexFile** declaring_dex_file, 300 uint16_t* declaring_class_idx, uint16_t* declaring_method_idx) 301 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 302 303 // Get the index in the vtable of the method. 304 uint16_t GetResolvedMethodVTableIndex( 305 mirror::ArtMethod* resolved_method, InvokeType type) 306 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 307 308 // Can we fast-path an INVOKE? If no, returns 0. If yes, returns a non-zero opaque flags value 309 // for ProcessedInvoke() and computes the necessary lowering info. 310 int IsFastInvoke( 311 ScopedObjectAccess& soa, Handle<mirror::DexCache> dex_cache, 312 Handle<mirror::ClassLoader> class_loader, const DexCompilationUnit* mUnit, 313 mirror::Class* referrer_class, mirror::ArtMethod* resolved_method, InvokeType* invoke_type, 314 MethodReference* target_method, const MethodReference* devirt_target, 315 uintptr_t* direct_code, uintptr_t* direct_method) 316 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 317 318 // Is method's class initialized for an invoke? 319 // For static invokes to determine whether we need to consider potential call to <clinit>(). 320 // For non-static invokes, assuming a non-null reference, the class is always initialized. 321 bool IsMethodsClassInitialized(mirror::Class* referrer_class, mirror::ArtMethod* resolved_method) 322 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 323 324 // Get the layout of dex cache arrays for a dex file. Returns invalid layout if the 325 // dex cache arrays don't have a fixed layout. 326 DexCacheArraysLayout GetDexCacheArraysLayout(const DexFile* dex_file); 327 328 void ProcessedInstanceField(bool resolved); 329 void ProcessedStaticField(bool resolved, bool local); 330 void ProcessedInvoke(InvokeType invoke_type, int flags); 331 332 void ComputeFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, 333 const ScopedObjectAccess& soa, bool is_static, 334 mirror::ArtField** resolved_field, 335 mirror::Class** referrer_class, 336 mirror::DexCache** dex_cache) 337 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 338 339 // Can we fast path instance field access? Computes field's offset and volatility. 340 bool ComputeInstanceFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, bool is_put, 341 MemberOffset* field_offset, bool* is_volatile) 342 LOCKS_EXCLUDED(Locks::mutator_lock_); 343 344 mirror::ArtField* ComputeInstanceFieldInfo(uint32_t field_idx, 345 const DexCompilationUnit* mUnit, 346 bool is_put, 347 const ScopedObjectAccess& soa) 348 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 349 350 351 // Can we fastpath static field access? Computes field's offset, volatility and whether the 352 // field is within the referrer (which can avoid checking class initialization). 353 bool ComputeStaticFieldInfo(uint32_t field_idx, const DexCompilationUnit* mUnit, bool is_put, 354 MemberOffset* field_offset, uint32_t* storage_index, 355 bool* is_referrers_class, bool* is_volatile, bool* is_initialized, 356 Primitive::Type* type) 357 LOCKS_EXCLUDED(Locks::mutator_lock_); 358 359 // Can we fastpath a interface, super class or virtual method call? Computes method's vtable 360 // index. 361 bool ComputeInvokeInfo(const DexCompilationUnit* mUnit, const uint32_t dex_pc, 362 bool update_stats, bool enable_devirtualization, 363 InvokeType* type, MethodReference* target_method, int* vtable_idx, 364 uintptr_t* direct_code, uintptr_t* direct_method) 365 LOCKS_EXCLUDED(Locks::mutator_lock_); 366 367 const VerifiedMethod* GetVerifiedMethod(const DexFile* dex_file, uint32_t method_idx) const; 368 bool IsSafeCast(const DexCompilationUnit* mUnit, uint32_t dex_pc); 369 370 bool GetSupportBootImageFixup() const { 371 return support_boot_image_fixup_; 372 } 373 374 void SetSupportBootImageFixup(bool support_boot_image_fixup) { 375 support_boot_image_fixup_ = support_boot_image_fixup; 376 } 377 378 SwapAllocator<void>& GetSwapSpaceAllocator() { 379 return *swap_space_allocator_.get(); 380 } 381 382 bool WriteElf(const std::string& android_root, 383 bool is_host, 384 const std::vector<const DexFile*>& dex_files, 385 OatWriter* oat_writer, 386 File* file); 387 388 // TODO: move to a common home for llvm helpers once quick/portable are merged. 389 static void InstructionSetToLLVMTarget(InstructionSet instruction_set, 390 std::string* target_triple, 391 std::string* target_cpu, 392 std::string* target_attr); 393 394 void SetCompilerContext(void* compiler_context) { 395 compiler_context_ = compiler_context; 396 } 397 398 void* GetCompilerContext() const { 399 return compiler_context_; 400 } 401 402 size_t GetThreadCount() const { 403 return thread_count_; 404 } 405 406 bool GetDumpPasses() const { 407 return dump_passes_; 408 } 409 410 const std::string& GetDumpCfgFileName() const { 411 return dump_cfg_file_name_; 412 } 413 414 CumulativeLogger* GetTimingsLogger() const { 415 return timings_logger_; 416 } 417 418 void SetDedupeEnabled(bool dedupe_enabled) { 419 dedupe_enabled_ = dedupe_enabled; 420 } 421 bool DedupeEnabled() const { 422 return dedupe_enabled_; 423 } 424 425 // Checks if class specified by type_idx is one of the image_classes_ 426 bool IsImageClass(const char* descriptor) const; 427 428 // Checks if the provided class should be compiled, i.e., is in classes_to_compile_. 429 bool IsClassToCompile(const char* descriptor) const; 430 431 void RecordClassStatus(ClassReference ref, mirror::Class::Status status) 432 LOCKS_EXCLUDED(compiled_classes_lock_); 433 434 SwapVector<uint8_t>* DeduplicateCode(const ArrayRef<const uint8_t>& code); 435 SwapSrcMap* DeduplicateSrcMappingTable(const ArrayRef<SrcMapElem>& src_map); 436 SwapVector<uint8_t>* DeduplicateMappingTable(const ArrayRef<const uint8_t>& code); 437 SwapVector<uint8_t>* DeduplicateVMapTable(const ArrayRef<const uint8_t>& code); 438 SwapVector<uint8_t>* DeduplicateGCMap(const ArrayRef<const uint8_t>& code); 439 SwapVector<uint8_t>* DeduplicateCFIInfo(const ArrayRef<const uint8_t>& cfi_info); 440 441 // Should the compiler run on this method given profile information? 442 bool SkipCompilation(const std::string& method_name); 443 444 // Get memory usage during compilation. 445 std::string GetMemoryUsageString(bool extended) const; 446 447 void SetHadHardVerifierFailure() { 448 had_hard_verifier_failure_ = true; 449 } 450 451 private: 452 // These flags are internal to CompilerDriver for collecting INVOKE resolution statistics. 453 // The only external contract is that unresolved method has flags 0 and resolved non-0. 454 enum { 455 kBitMethodResolved = 0, 456 kBitVirtualMadeDirect, 457 kBitPreciseTypeDevirtualization, 458 kBitDirectCallToBoot, 459 kBitDirectMethodToBoot 460 }; 461 static constexpr int kFlagMethodResolved = 1 << kBitMethodResolved; 462 static constexpr int kFlagVirtualMadeDirect = 1 << kBitVirtualMadeDirect; 463 static constexpr int kFlagPreciseTypeDevirtualization = 1 << kBitPreciseTypeDevirtualization; 464 static constexpr int kFlagDirectCallToBoot = 1 << kBitDirectCallToBoot; 465 static constexpr int kFlagDirectMethodToBoot = 1 << kBitDirectMethodToBoot; 466 static constexpr int kFlagsMethodResolvedVirtualMadeDirect = 467 kFlagMethodResolved | kFlagVirtualMadeDirect; 468 static constexpr int kFlagsMethodResolvedPreciseTypeDevirtualization = 469 kFlagsMethodResolvedVirtualMadeDirect | kFlagPreciseTypeDevirtualization; 470 471 public: // TODO make private or eliminate. 472 // Compute constant code and method pointers when possible. 473 void GetCodeAndMethodForDirectCall(/*out*/InvokeType* type, 474 InvokeType sharp_type, 475 bool no_guarantee_of_dex_cache_entry, 476 const mirror::Class* referrer_class, 477 mirror::ArtMethod* method, 478 /*out*/int* stats_flags, 479 MethodReference* target_method, 480 uintptr_t* direct_code, uintptr_t* direct_method) 481 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 482 483 private: 484 DexToDexCompilationLevel GetDexToDexCompilationlevel( 485 Thread* self, Handle<mirror::ClassLoader> class_loader, const DexFile& dex_file, 486 const DexFile::ClassDef& class_def) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 487 488 void PreCompile(jobject class_loader, const std::vector<const DexFile*>& dex_files, 489 ThreadPool* thread_pool, TimingLogger* timings) 490 LOCKS_EXCLUDED(Locks::mutator_lock_); 491 492 void LoadImageClasses(TimingLogger* timings); 493 494 // Attempt to resolve all type, methods, fields, and strings 495 // referenced from code in the dex file following PathClassLoader 496 // ordering semantics. 497 void Resolve(jobject class_loader, const std::vector<const DexFile*>& dex_files, 498 ThreadPool* thread_pool, TimingLogger* timings) 499 LOCKS_EXCLUDED(Locks::mutator_lock_); 500 void ResolveDexFile(jobject class_loader, const DexFile& dex_file, 501 const std::vector<const DexFile*>& dex_files, 502 ThreadPool* thread_pool, TimingLogger* timings) 503 LOCKS_EXCLUDED(Locks::mutator_lock_); 504 505 void Verify(jobject class_loader, const std::vector<const DexFile*>& dex_files, 506 ThreadPool* thread_pool, TimingLogger* timings); 507 void VerifyDexFile(jobject class_loader, const DexFile& dex_file, 508 const std::vector<const DexFile*>& dex_files, 509 ThreadPool* thread_pool, TimingLogger* timings) 510 LOCKS_EXCLUDED(Locks::mutator_lock_); 511 512 void SetVerified(jobject class_loader, const std::vector<const DexFile*>& dex_files, 513 ThreadPool* thread_pool, TimingLogger* timings); 514 void SetVerifiedDexFile(jobject class_loader, const DexFile& dex_file, 515 const std::vector<const DexFile*>& dex_files, 516 ThreadPool* thread_pool, TimingLogger* timings) 517 LOCKS_EXCLUDED(Locks::mutator_lock_); 518 519 void InitializeClasses(jobject class_loader, const std::vector<const DexFile*>& dex_files, 520 ThreadPool* thread_pool, TimingLogger* timings) 521 LOCKS_EXCLUDED(Locks::mutator_lock_); 522 void InitializeClasses(jobject class_loader, const DexFile& dex_file, 523 const std::vector<const DexFile*>& dex_files, 524 ThreadPool* thread_pool, TimingLogger* timings) 525 LOCKS_EXCLUDED(Locks::mutator_lock_, compiled_classes_lock_); 526 527 void UpdateImageClasses(TimingLogger* timings) LOCKS_EXCLUDED(Locks::mutator_lock_); 528 static void FindClinitImageClassesCallback(mirror::Object* object, void* arg) 529 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 530 531 void Compile(jobject class_loader, const std::vector<const DexFile*>& dex_files, 532 ThreadPool* thread_pool, TimingLogger* timings); 533 void CompileDexFile(jobject class_loader, const DexFile& dex_file, 534 const std::vector<const DexFile*>& dex_files, 535 ThreadPool* thread_pool, TimingLogger* timings) 536 LOCKS_EXCLUDED(Locks::mutator_lock_); 537 void CompileMethod(Thread* self, const DexFile::CodeItem* code_item, uint32_t access_flags, 538 InvokeType invoke_type, uint16_t class_def_idx, uint32_t method_idx, 539 jobject class_loader, const DexFile& dex_file, 540 DexToDexCompilationLevel dex_to_dex_compilation_level, 541 bool compilation_enabled) 542 LOCKS_EXCLUDED(compiled_methods_lock_); 543 544 static void CompileClass(const ParallelCompilationManager* context, size_t class_def_index) 545 LOCKS_EXCLUDED(Locks::mutator_lock_); 546 547 // Swap pool and allocator used for native allocations. May be file-backed. Needs to be first 548 // as other fields rely on this. 549 std::unique_ptr<SwapSpace> swap_space_; 550 std::unique_ptr<SwapAllocator<void> > swap_space_allocator_; 551 552 ProfileFile profile_file_; 553 bool profile_present_; 554 555 const CompilerOptions* const compiler_options_; 556 VerificationResults* const verification_results_; 557 DexFileToMethodInlinerMap* const method_inliner_map_; 558 559 std::unique_ptr<Compiler> compiler_; 560 561 const InstructionSet instruction_set_; 562 const InstructionSetFeatures* const instruction_set_features_; 563 564 // All class references that require 565 mutable ReaderWriterMutex freezing_constructor_lock_ DEFAULT_MUTEX_ACQUIRED_AFTER; 566 std::set<ClassReference> freezing_constructor_classes_ GUARDED_BY(freezing_constructor_lock_); 567 568 typedef SafeMap<const ClassReference, CompiledClass*> ClassTable; 569 // All class references that this compiler has compiled. 570 mutable Mutex compiled_classes_lock_ DEFAULT_MUTEX_ACQUIRED_AFTER; 571 ClassTable compiled_classes_ GUARDED_BY(compiled_classes_lock_); 572 573 typedef SafeMap<const MethodReference, CompiledMethod*, MethodReferenceComparator> MethodTable; 574 // All method references that this compiler has compiled. 575 mutable Mutex compiled_methods_lock_ DEFAULT_MUTEX_ACQUIRED_AFTER; 576 MethodTable compiled_methods_ GUARDED_BY(compiled_methods_lock_); 577 // Number of non-relative patches in all compiled methods. These patches need space 578 // in the .oat_patches ELF section if requested in the compiler options. 579 size_t non_relative_linker_patch_count_ GUARDED_BY(compiled_methods_lock_); 580 581 const bool image_; 582 583 // If image_ is true, specifies the classes that will be included in 584 // the image. Note if image_classes_ is nullptr, all classes are 585 // included in the image. 586 std::unique_ptr<std::set<std::string>> image_classes_; 587 588 // If image_ is true, specifies the classes that will be compiled in 589 // the image. Note if classes_to_compile_ is nullptr, all classes are 590 // included in the image. 591 std::unique_ptr<std::set<std::string>> classes_to_compile_; 592 593 bool had_hard_verifier_failure_; 594 595 size_t thread_count_; 596 597 class AOTCompilationStats; 598 std::unique_ptr<AOTCompilationStats> stats_; 599 600 bool dedupe_enabled_; 601 bool dump_stats_; 602 const bool dump_passes_; 603 const std::string& dump_cfg_file_name_; 604 605 CumulativeLogger* const timings_logger_; 606 607 typedef void (*CompilerCallbackFn)(CompilerDriver& driver); 608 typedef MutexLock* (*CompilerMutexLockFn)(CompilerDriver& driver); 609 610 typedef void (*DexToDexCompilerFn)(CompilerDriver& driver, 611 const DexFile::CodeItem* code_item, 612 uint32_t access_flags, InvokeType invoke_type, 613 uint32_t class_dex_idx, uint32_t method_idx, 614 jobject class_loader, const DexFile& dex_file, 615 DexToDexCompilationLevel dex_to_dex_compilation_level); 616 DexToDexCompilerFn dex_to_dex_compiler_; 617 618 void* compiler_context_; 619 620 bool support_boot_image_fixup_; 621 622 // DeDuplication data structures, these own the corresponding byte arrays. 623 template <typename ContentType> 624 class DedupeHashFunc { 625 public: 626 size_t operator()(const ArrayRef<ContentType>& array) const { 627 const uint8_t* data = reinterpret_cast<const uint8_t*>(array.data()); 628 static_assert(IsPowerOfTwo(sizeof(ContentType)), 629 "ContentType is not power of two, don't know whether array layout is as assumed"); 630 uint32_t len = sizeof(ContentType) * array.size(); 631 if (kUseMurmur3Hash) { 632 static constexpr uint32_t c1 = 0xcc9e2d51; 633 static constexpr uint32_t c2 = 0x1b873593; 634 static constexpr uint32_t r1 = 15; 635 static constexpr uint32_t r2 = 13; 636 static constexpr uint32_t m = 5; 637 static constexpr uint32_t n = 0xe6546b64; 638 639 uint32_t hash = 0; 640 641 const int nblocks = len / 4; 642 typedef __attribute__((__aligned__(1))) uint32_t unaligned_uint32_t; 643 const unaligned_uint32_t *blocks = reinterpret_cast<const uint32_t*>(data); 644 int i; 645 for (i = 0; i < nblocks; i++) { 646 uint32_t k = blocks[i]; 647 k *= c1; 648 k = (k << r1) | (k >> (32 - r1)); 649 k *= c2; 650 651 hash ^= k; 652 hash = ((hash << r2) | (hash >> (32 - r2))) * m + n; 653 } 654 655 const uint8_t *tail = reinterpret_cast<const uint8_t*>(data + nblocks * 4); 656 uint32_t k1 = 0; 657 658 switch (len & 3) { 659 case 3: 660 k1 ^= tail[2] << 16; 661 FALLTHROUGH_INTENDED; 662 case 2: 663 k1 ^= tail[1] << 8; 664 FALLTHROUGH_INTENDED; 665 case 1: 666 k1 ^= tail[0]; 667 668 k1 *= c1; 669 k1 = (k1 << r1) | (k1 >> (32 - r1)); 670 k1 *= c2; 671 hash ^= k1; 672 } 673 674 hash ^= len; 675 hash ^= (hash >> 16); 676 hash *= 0x85ebca6b; 677 hash ^= (hash >> 13); 678 hash *= 0xc2b2ae35; 679 hash ^= (hash >> 16); 680 681 return hash; 682 } else { 683 size_t hash = 0x811c9dc5; 684 for (uint32_t i = 0; i < len; ++i) { 685 hash = (hash * 16777619) ^ data[i]; 686 } 687 hash += hash << 13; 688 hash ^= hash >> 7; 689 hash += hash << 3; 690 hash ^= hash >> 17; 691 hash += hash << 5; 692 return hash; 693 } 694 } 695 }; 696 697 DedupeSet<ArrayRef<const uint8_t>, 698 SwapVector<uint8_t>, size_t, DedupeHashFunc<const uint8_t>, 4> dedupe_code_; 699 DedupeSet<ArrayRef<SrcMapElem>, 700 SwapSrcMap, size_t, DedupeHashFunc<SrcMapElem>, 4> dedupe_src_mapping_table_; 701 DedupeSet<ArrayRef<const uint8_t>, 702 SwapVector<uint8_t>, size_t, DedupeHashFunc<const uint8_t>, 4> dedupe_mapping_table_; 703 DedupeSet<ArrayRef<const uint8_t>, 704 SwapVector<uint8_t>, size_t, DedupeHashFunc<const uint8_t>, 4> dedupe_vmap_table_; 705 DedupeSet<ArrayRef<const uint8_t>, 706 SwapVector<uint8_t>, size_t, DedupeHashFunc<const uint8_t>, 4> dedupe_gc_map_; 707 DedupeSet<ArrayRef<const uint8_t>, 708 SwapVector<uint8_t>, size_t, DedupeHashFunc<const uint8_t>, 4> dedupe_cfi_info_; 709 710 DISALLOW_COPY_AND_ASSIGN(CompilerDriver); 711}; 712 713} // namespace art 714 715#endif // ART_COMPILER_DRIVER_COMPILER_DRIVER_H_ 716