| /* |
| * Copyright (C) 2011 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef ART_RUNTIME_RUNTIME_H_ |
| #define ART_RUNTIME_RUNTIME_H_ |
| |
| #include <jni.h> |
| #include <stdio.h> |
| |
| #include <iosfwd> |
| #include <set> |
| #include <string> |
| #include <utility> |
| #include <memory> |
| #include <vector> |
| |
| #include "arch/instruction_set.h" |
| #include "base/macros.h" |
| #include "base/mutex.h" |
| #include "deoptimization_kind.h" |
| #include "dex/dex_file_types.h" |
| #include "experimental_flags.h" |
| #include "gc_root.h" |
| #include "instrumentation.h" |
| #include "jdwp_provider.h" |
| #include "obj_ptr.h" |
| #include "offsets.h" |
| #include "process_state.h" |
| #include "quick/quick_method_frame_info.h" |
| #include "runtime_stats.h" |
| |
| namespace art { |
| |
| namespace gc { |
| class AbstractSystemWeakHolder; |
| class Heap; |
| } // namespace gc |
| |
| namespace jit { |
| class Jit; |
| class JitOptions; |
| } // namespace jit |
| |
| namespace mirror { |
| class Array; |
| class ClassLoader; |
| class DexCache; |
| template<class T> class ObjectArray; |
| template<class T> class PrimitiveArray; |
| typedef PrimitiveArray<int8_t> ByteArray; |
| class String; |
| class Throwable; |
| } // namespace mirror |
| namespace ti { |
| class Agent; |
| class AgentSpec; |
| } // namespace ti |
| namespace verifier { |
| class MethodVerifier; |
| enum class VerifyMode : int8_t; |
| } // namespace verifier |
| class ArenaPool; |
| class ArtMethod; |
| enum class CalleeSaveType: uint32_t; |
| class ClassLinker; |
| class CompilerCallbacks; |
| class DexFile; |
| class InternTable; |
| class IsMarkedVisitor; |
| class JavaVMExt; |
| class LinearAlloc; |
| class MemMap; |
| class MonitorList; |
| class MonitorPool; |
| class NullPointerHandler; |
| class OatFileManager; |
| class Plugin; |
| struct RuntimeArgumentMap; |
| class RuntimeCallbacks; |
| class SignalCatcher; |
| class StackOverflowHandler; |
| class SuspensionHandler; |
| class ThreadList; |
| class Trace; |
| struct TraceConfig; |
| class Transaction; |
| |
| typedef std::vector<std::pair<std::string, const void*>> RuntimeOptions; |
| |
| class Runtime { |
| public: |
| // Parse raw runtime options. |
| static bool ParseOptions(const RuntimeOptions& raw_options, |
| bool ignore_unrecognized, |
| RuntimeArgumentMap* runtime_options); |
| |
| // Creates and initializes a new runtime. |
| static bool Create(RuntimeArgumentMap&& runtime_options) |
| SHARED_TRYLOCK_FUNCTION(true, Locks::mutator_lock_); |
| |
| // Creates and initializes a new runtime. |
| static bool Create(const RuntimeOptions& raw_options, bool ignore_unrecognized) |
| SHARED_TRYLOCK_FUNCTION(true, Locks::mutator_lock_); |
| |
| // IsAotCompiler for compilers that don't have a running runtime. Only dex2oat currently. |
| bool IsAotCompiler() const { |
| return !UseJitCompilation() && IsCompiler(); |
| } |
| |
| // IsCompiler is any runtime which has a running compiler, either dex2oat or JIT. |
| bool IsCompiler() const { |
| return compiler_callbacks_ != nullptr; |
| } |
| |
| // If a compiler, are we compiling a boot image? |
| bool IsCompilingBootImage() const; |
| |
| bool CanRelocate() const; |
| |
| bool ShouldRelocate() const { |
| return must_relocate_ && CanRelocate(); |
| } |
| |
| bool MustRelocateIfPossible() const { |
| return must_relocate_; |
| } |
| |
| bool IsDex2OatEnabled() const { |
| return dex2oat_enabled_ && IsImageDex2OatEnabled(); |
| } |
| |
| bool IsImageDex2OatEnabled() const { |
| return image_dex2oat_enabled_; |
| } |
| |
| CompilerCallbacks* GetCompilerCallbacks() { |
| return compiler_callbacks_; |
| } |
| |
| void SetCompilerCallbacks(CompilerCallbacks* callbacks) { |
| CHECK(callbacks != nullptr); |
| compiler_callbacks_ = callbacks; |
| } |
| |
| bool IsZygote() const { |
| return is_zygote_; |
| } |
| |
| bool IsExplicitGcDisabled() const { |
| return is_explicit_gc_disabled_; |
| } |
| |
| std::string GetCompilerExecutable() const; |
| std::string GetPatchoatExecutable() const; |
| |
| const std::vector<std::string>& GetCompilerOptions() const { |
| return compiler_options_; |
| } |
| |
| void AddCompilerOption(const std::string& option) { |
| compiler_options_.push_back(option); |
| } |
| |
| const std::vector<std::string>& GetImageCompilerOptions() const { |
| return image_compiler_options_; |
| } |
| |
| const std::string& GetImageLocation() const { |
| return image_location_; |
| } |
| |
| // Starts a runtime, which may cause threads to be started and code to run. |
| bool Start() UNLOCK_FUNCTION(Locks::mutator_lock_); |
| |
| bool IsShuttingDown(Thread* self); |
| bool IsShuttingDownLocked() const REQUIRES(Locks::runtime_shutdown_lock_) { |
| return shutting_down_; |
| } |
| |
| size_t NumberOfThreadsBeingBorn() const REQUIRES(Locks::runtime_shutdown_lock_) { |
| return threads_being_born_; |
| } |
| |
| void StartThreadBirth() REQUIRES(Locks::runtime_shutdown_lock_) { |
| threads_being_born_++; |
| } |
| |
| void EndThreadBirth() REQUIRES(Locks::runtime_shutdown_lock_); |
| |
| bool IsStarted() const { |
| return started_; |
| } |
| |
| bool IsFinishedStarting() const { |
| return finished_starting_; |
| } |
| |
| static Runtime* Current() { |
| return instance_; |
| } |
| |
| // Aborts semi-cleanly. Used in the implementation of LOG(FATAL), which most |
| // callers should prefer. |
| NO_RETURN static void Abort(const char* msg) REQUIRES(!Locks::abort_lock_); |
| |
| // Returns the "main" ThreadGroup, used when attaching user threads. |
| jobject GetMainThreadGroup() const; |
| |
| // Returns the "system" ThreadGroup, used when attaching our internal threads. |
| jobject GetSystemThreadGroup() const; |
| |
| // Returns the system ClassLoader which represents the CLASSPATH. |
| jobject GetSystemClassLoader() const; |
| |
| // Attaches the calling native thread to the runtime. |
| bool AttachCurrentThread(const char* thread_name, bool as_daemon, jobject thread_group, |
| bool create_peer); |
| |
| void CallExitHook(jint status); |
| |
| // Detaches the current native thread from the runtime. |
| void DetachCurrentThread() REQUIRES(!Locks::mutator_lock_); |
| |
| void DumpDeoptimizations(std::ostream& os); |
| void DumpForSigQuit(std::ostream& os); |
| void DumpLockHolders(std::ostream& os); |
| |
| ~Runtime(); |
| |
| const std::string& GetBootClassPathString() const { |
| return boot_class_path_string_; |
| } |
| |
| const std::string& GetClassPathString() const { |
| return class_path_string_; |
| } |
| |
| ClassLinker* GetClassLinker() const { |
| return class_linker_; |
| } |
| |
| size_t GetDefaultStackSize() const { |
| return default_stack_size_; |
| } |
| |
| gc::Heap* GetHeap() const { |
| return heap_; |
| } |
| |
| InternTable* GetInternTable() const { |
| DCHECK(intern_table_ != nullptr); |
| return intern_table_; |
| } |
| |
| JavaVMExt* GetJavaVM() const { |
| return java_vm_.get(); |
| } |
| |
| size_t GetMaxSpinsBeforeThinLockInflation() const { |
| return max_spins_before_thin_lock_inflation_; |
| } |
| |
| MonitorList* GetMonitorList() const { |
| return monitor_list_; |
| } |
| |
| MonitorPool* GetMonitorPool() const { |
| return monitor_pool_; |
| } |
| |
| // Is the given object the special object used to mark a cleared JNI weak global? |
| bool IsClearedJniWeakGlobal(ObjPtr<mirror::Object> obj) REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| // Get the special object used to mark a cleared JNI weak global. |
| mirror::Object* GetClearedJniWeakGlobal() REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| mirror::Throwable* GetPreAllocatedOutOfMemoryError() REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| mirror::Throwable* GetPreAllocatedNoClassDefFoundError() |
| REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| const std::vector<std::string>& GetProperties() const { |
| return properties_; |
| } |
| |
| ThreadList* GetThreadList() const { |
| return thread_list_; |
| } |
| |
| static const char* GetVersion() { |
| return "2.1.0"; |
| } |
| |
| bool IsMethodHandlesEnabled() const { |
| return true; |
| } |
| |
| void DisallowNewSystemWeaks() REQUIRES_SHARED(Locks::mutator_lock_); |
| void AllowNewSystemWeaks() REQUIRES_SHARED(Locks::mutator_lock_); |
| // broadcast_for_checkpoint is true when we broadcast for making blocking threads to respond to |
| // checkpoint requests. It's false when we broadcast to unblock blocking threads after system weak |
| // access is reenabled. |
| void BroadcastForNewSystemWeaks(bool broadcast_for_checkpoint = false); |
| |
| // Visit all the roots. If only_dirty is true then non-dirty roots won't be visited. If |
| // clean_dirty is true then dirty roots will be marked as non-dirty after visiting. |
| void VisitRoots(RootVisitor* visitor, VisitRootFlags flags = kVisitRootFlagAllRoots) |
| REQUIRES(!Locks::classlinker_classes_lock_, !Locks::trace_lock_) |
| REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| // Visit image roots, only used for hprof since the GC uses the image space mod union table |
| // instead. |
| void VisitImageRoots(RootVisitor* visitor) REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| // Visit all of the roots we can do safely do concurrently. |
| void VisitConcurrentRoots(RootVisitor* visitor, |
| VisitRootFlags flags = kVisitRootFlagAllRoots) |
| REQUIRES(!Locks::classlinker_classes_lock_, !Locks::trace_lock_) |
| REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| // Visit all of the non thread roots, we can do this with mutators unpaused. |
| void VisitNonThreadRoots(RootVisitor* visitor) |
| REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| void VisitTransactionRoots(RootVisitor* visitor) |
| REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| // Sweep system weaks, the system weak is deleted if the visitor return null. Otherwise, the |
| // system weak is updated to be the visitor's returned value. |
| void SweepSystemWeaks(IsMarkedVisitor* visitor) |
| REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| // Returns a special method that calls into a trampoline for runtime method resolution |
| ArtMethod* GetResolutionMethod(); |
| |
| bool HasResolutionMethod() const { |
| return resolution_method_ != nullptr; |
| } |
| |
| void SetResolutionMethod(ArtMethod* method) REQUIRES_SHARED(Locks::mutator_lock_); |
| void ClearResolutionMethod() { |
| resolution_method_ = nullptr; |
| } |
| |
| ArtMethod* CreateResolutionMethod() REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| // Returns a special method that calls into a trampoline for runtime imt conflicts. |
| ArtMethod* GetImtConflictMethod(); |
| ArtMethod* GetImtUnimplementedMethod(); |
| |
| bool HasImtConflictMethod() const { |
| return imt_conflict_method_ != nullptr; |
| } |
| |
| void ClearImtConflictMethod() { |
| imt_conflict_method_ = nullptr; |
| } |
| |
| void FixupConflictTables(); |
| void SetImtConflictMethod(ArtMethod* method) REQUIRES_SHARED(Locks::mutator_lock_); |
| void SetImtUnimplementedMethod(ArtMethod* method) REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| ArtMethod* CreateImtConflictMethod(LinearAlloc* linear_alloc) |
| REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| void ClearImtUnimplementedMethod() { |
| imt_unimplemented_method_ = nullptr; |
| } |
| |
| bool HasCalleeSaveMethod(CalleeSaveType type) const { |
| return callee_save_methods_[static_cast<size_t>(type)] != 0u; |
| } |
| |
| ArtMethod* GetCalleeSaveMethod(CalleeSaveType type) |
| REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| ArtMethod* GetCalleeSaveMethodUnchecked(CalleeSaveType type) |
| REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| QuickMethodFrameInfo GetCalleeSaveMethodFrameInfo(CalleeSaveType type) const { |
| return callee_save_method_frame_infos_[static_cast<size_t>(type)]; |
| } |
| |
| QuickMethodFrameInfo GetRuntimeMethodFrameInfo(ArtMethod* method) |
| REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| static size_t GetCalleeSaveMethodOffset(CalleeSaveType type) { |
| return OFFSETOF_MEMBER(Runtime, callee_save_methods_[static_cast<size_t>(type)]); |
| } |
| |
| InstructionSet GetInstructionSet() const { |
| return instruction_set_; |
| } |
| |
| void SetInstructionSet(InstructionSet instruction_set); |
| void ClearInstructionSet(); |
| |
| void SetCalleeSaveMethod(ArtMethod* method, CalleeSaveType type); |
| void ClearCalleeSaveMethods(); |
| |
| ArtMethod* CreateCalleeSaveMethod() REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| int32_t GetStat(int kind); |
| |
| RuntimeStats* GetStats() { |
| return &stats_; |
| } |
| |
| bool HasStatsEnabled() const { |
| return stats_enabled_; |
| } |
| |
| void ResetStats(int kinds); |
| |
| void SetStatsEnabled(bool new_state) |
| REQUIRES(!Locks::instrument_entrypoints_lock_, !Locks::mutator_lock_); |
| |
| enum class NativeBridgeAction { // private |
| kUnload, |
| kInitialize |
| }; |
| |
| jit::Jit* GetJit() const { |
| return jit_.get(); |
| } |
| |
| // Returns true if JIT compilations are enabled. GetJit() will be not null in this case. |
| bool UseJitCompilation() const; |
| |
| void PreZygoteFork(); |
| void InitNonZygoteOrPostFork( |
| JNIEnv* env, bool is_system_server, NativeBridgeAction action, const char* isa); |
| |
| const instrumentation::Instrumentation* GetInstrumentation() const { |
| return &instrumentation_; |
| } |
| |
| instrumentation::Instrumentation* GetInstrumentation() { |
| return &instrumentation_; |
| } |
| |
| void RegisterAppInfo(const std::vector<std::string>& code_paths, |
| const std::string& profile_output_filename); |
| |
| // Transaction support. |
| bool IsActiveTransaction() const; |
| void EnterTransactionMode(); |
| void EnterTransactionMode(bool strict, mirror::Class* root); |
| void ExitTransactionMode(); |
| void RollbackAllTransactions() REQUIRES_SHARED(Locks::mutator_lock_); |
| // Transaction rollback and exit transaction are always done together, it's convenience to |
| // do them in one function. |
| void RollbackAndExitTransactionMode() REQUIRES_SHARED(Locks::mutator_lock_); |
| bool IsTransactionAborted() const; |
| const std::unique_ptr<Transaction>& GetTransaction() const; |
| bool IsActiveStrictTransactionMode() const; |
| |
| void AbortTransactionAndThrowAbortError(Thread* self, const std::string& abort_message) |
| REQUIRES_SHARED(Locks::mutator_lock_); |
| void ThrowTransactionAbortError(Thread* self) |
| REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| void RecordWriteFieldBoolean(mirror::Object* obj, MemberOffset field_offset, uint8_t value, |
| bool is_volatile) const; |
| void RecordWriteFieldByte(mirror::Object* obj, MemberOffset field_offset, int8_t value, |
| bool is_volatile) const; |
| void RecordWriteFieldChar(mirror::Object* obj, MemberOffset field_offset, uint16_t value, |
| bool is_volatile) const; |
| void RecordWriteFieldShort(mirror::Object* obj, MemberOffset field_offset, int16_t value, |
| bool is_volatile) const; |
| void RecordWriteField32(mirror::Object* obj, MemberOffset field_offset, uint32_t value, |
| bool is_volatile) const; |
| void RecordWriteField64(mirror::Object* obj, MemberOffset field_offset, uint64_t value, |
| bool is_volatile) const; |
| void RecordWriteFieldReference(mirror::Object* obj, |
| MemberOffset field_offset, |
| ObjPtr<mirror::Object> value, |
| bool is_volatile) const |
| REQUIRES_SHARED(Locks::mutator_lock_); |
| void RecordWriteArray(mirror::Array* array, size_t index, uint64_t value) const |
| REQUIRES_SHARED(Locks::mutator_lock_); |
| void RecordStrongStringInsertion(ObjPtr<mirror::String> s) const |
| REQUIRES(Locks::intern_table_lock_); |
| void RecordWeakStringInsertion(ObjPtr<mirror::String> s) const |
| REQUIRES(Locks::intern_table_lock_); |
| void RecordStrongStringRemoval(ObjPtr<mirror::String> s) const |
| REQUIRES(Locks::intern_table_lock_); |
| void RecordWeakStringRemoval(ObjPtr<mirror::String> s) const |
| REQUIRES(Locks::intern_table_lock_); |
| void RecordResolveString(ObjPtr<mirror::DexCache> dex_cache, dex::StringIndex string_idx) const |
| REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| void SetFaultMessage(const std::string& message) REQUIRES(!fault_message_lock_); |
| // Only read by the signal handler, NO_THREAD_SAFETY_ANALYSIS to prevent lock order violations |
| // with the unexpected_signal_lock_. |
| const std::string& GetFaultMessage() NO_THREAD_SAFETY_ANALYSIS { |
| return fault_message_; |
| } |
| |
| void AddCurrentRuntimeFeaturesAsDex2OatArguments(std::vector<std::string>* arg_vector) const; |
| |
| bool ExplicitStackOverflowChecks() const { |
| return !implicit_so_checks_; |
| } |
| |
| void DisableVerifier(); |
| bool IsVerificationEnabled() const; |
| bool IsVerificationSoftFail() const; |
| |
| bool IsDexFileFallbackEnabled() const { |
| return allow_dex_file_fallback_; |
| } |
| |
| const std::vector<std::string>& GetCpuAbilist() const { |
| return cpu_abilist_; |
| } |
| |
| bool IsRunningOnMemoryTool() const { |
| return is_running_on_memory_tool_; |
| } |
| |
| void SetTargetSdkVersion(int32_t version) { |
| target_sdk_version_ = version; |
| } |
| |
| int32_t GetTargetSdkVersion() const { |
| return target_sdk_version_; |
| } |
| |
| uint32_t GetZygoteMaxFailedBoots() const { |
| return zygote_max_failed_boots_; |
| } |
| |
| bool AreExperimentalFlagsEnabled(ExperimentalFlags flags) { |
| return (experimental_flags_ & flags) != ExperimentalFlags::kNone; |
| } |
| |
| // Create the JIT and instrumentation and code cache. |
| void CreateJit(); |
| |
| ArenaPool* GetArenaPool() { |
| return arena_pool_.get(); |
| } |
| ArenaPool* GetJitArenaPool() { |
| return jit_arena_pool_.get(); |
| } |
| const ArenaPool* GetArenaPool() const { |
| return arena_pool_.get(); |
| } |
| |
| void ReclaimArenaPoolMemory(); |
| |
| LinearAlloc* GetLinearAlloc() { |
| return linear_alloc_.get(); |
| } |
| |
| jit::JitOptions* GetJITOptions() { |
| return jit_options_.get(); |
| } |
| |
| bool IsJavaDebuggable() const { |
| return is_java_debuggable_; |
| } |
| |
| void SetJavaDebuggable(bool value); |
| |
| // Deoptimize the boot image, called for Java debuggable apps. |
| void DeoptimizeBootImage(); |
| |
| bool IsNativeDebuggable() const { |
| return is_native_debuggable_; |
| } |
| |
| void SetNativeDebuggable(bool value) { |
| is_native_debuggable_ = value; |
| } |
| |
| bool AreAsyncExceptionsThrown() const { |
| return async_exceptions_thrown_; |
| } |
| |
| void SetAsyncExceptionsThrown() { |
| async_exceptions_thrown_ = true; |
| } |
| |
| // Returns the build fingerprint, if set. Otherwise an empty string is returned. |
| std::string GetFingerprint() { |
| return fingerprint_; |
| } |
| |
| // Called from class linker. |
| void SetSentinel(mirror::Object* sentinel) REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| // Create a normal LinearAlloc or low 4gb version if we are 64 bit AOT compiler. |
| LinearAlloc* CreateLinearAlloc(); |
| |
| OatFileManager& GetOatFileManager() const { |
| DCHECK(oat_file_manager_ != nullptr); |
| return *oat_file_manager_; |
| } |
| |
| double GetHashTableMinLoadFactor() const; |
| double GetHashTableMaxLoadFactor() const; |
| |
| void SetSafeMode(bool mode) { |
| safe_mode_ = mode; |
| } |
| |
| bool GetDumpNativeStackOnSigQuit() const { |
| return dump_native_stack_on_sig_quit_; |
| } |
| |
| bool GetPrunedDalvikCache() const { |
| return pruned_dalvik_cache_; |
| } |
| |
| void SetPrunedDalvikCache(bool pruned) { |
| pruned_dalvik_cache_ = pruned; |
| } |
| |
| void UpdateProcessState(ProcessState process_state); |
| |
| // Returns true if we currently care about long mutator pause. |
| bool InJankPerceptibleProcessState() const { |
| return process_state_ == kProcessStateJankPerceptible; |
| } |
| |
| void RegisterSensitiveThread() const; |
| |
| void SetZygoteNoThreadSection(bool val) { |
| zygote_no_threads_ = val; |
| } |
| |
| bool IsZygoteNoThreadSection() const { |
| return zygote_no_threads_; |
| } |
| |
| // Returns if the code can be deoptimized asynchronously. Code may be compiled with some |
| // optimization that makes it impossible to deoptimize. |
| bool IsAsyncDeoptimizeable(uintptr_t code) const REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| // Returns a saved copy of the environment (getenv/setenv values). |
| // Used by Fork to protect against overwriting LD_LIBRARY_PATH, etc. |
| char** GetEnvSnapshot() const { |
| return env_snapshot_.GetSnapshot(); |
| } |
| |
| void AddSystemWeakHolder(gc::AbstractSystemWeakHolder* holder); |
| void RemoveSystemWeakHolder(gc::AbstractSystemWeakHolder* holder); |
| |
| void AttachAgent(JNIEnv* env, |
| const std::string& agent_arg, |
| jobject class_loader, |
| bool allow_non_debuggable_tooling = false); |
| |
| const std::list<std::unique_ptr<ti::Agent>>& GetAgents() const { |
| return agents_; |
| } |
| |
| RuntimeCallbacks* GetRuntimeCallbacks(); |
| |
| bool HasLoadedPlugins() const { |
| return !plugins_.empty(); |
| } |
| |
| void InitThreadGroups(Thread* self); |
| |
| void SetDumpGCPerformanceOnShutdown(bool value) { |
| dump_gc_performance_on_shutdown_ = value; |
| } |
| |
| void IncrementDeoptimizationCount(DeoptimizationKind kind) { |
| DCHECK_LE(kind, DeoptimizationKind::kLast); |
| deoptimization_counts_[static_cast<size_t>(kind)]++; |
| } |
| |
| uint32_t GetNumberOfDeoptimizations() const { |
| uint32_t result = 0; |
| for (size_t i = 0; i <= static_cast<size_t>(DeoptimizationKind::kLast); ++i) { |
| result += deoptimization_counts_[i]; |
| } |
| return result; |
| } |
| |
| // Whether or not we use MADV_RANDOM on files that are thought to have random access patterns. |
| // This is beneficial for low RAM devices since it reduces page cache thrashing. |
| bool MAdviseRandomAccess() const { |
| return madvise_random_access_; |
| } |
| |
| const std::string& GetJdwpOptions() { |
| return jdwp_options_; |
| } |
| |
| JdwpProvider GetJdwpProvider() const { |
| return jdwp_provider_; |
| } |
| |
| private: |
| static void InitPlatformSignalHandlers(); |
| |
| Runtime(); |
| |
| void BlockSignals(); |
| |
| bool Init(RuntimeArgumentMap&& runtime_options) |
| SHARED_TRYLOCK_FUNCTION(true, Locks::mutator_lock_); |
| void InitNativeMethods() REQUIRES(!Locks::mutator_lock_); |
| void RegisterRuntimeNativeMethods(JNIEnv* env); |
| |
| void StartDaemonThreads(); |
| void StartSignalCatcher(); |
| |
| void MaybeSaveJitProfilingInfo(); |
| |
| // Visit all of the thread roots. |
| void VisitThreadRoots(RootVisitor* visitor, VisitRootFlags flags) |
| REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| // Visit all other roots which must be done with mutators suspended. |
| void VisitNonConcurrentRoots(RootVisitor* visitor, VisitRootFlags flags) |
| REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| // Constant roots are the roots which never change after the runtime is initialized, they only |
| // need to be visited once per GC cycle. |
| void VisitConstantRoots(RootVisitor* visitor) |
| REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| // A pointer to the active runtime or null. |
| static Runtime* instance_; |
| |
| // NOTE: these must match the gc::ProcessState values as they come directly from the framework. |
| static constexpr int kProfileForground = 0; |
| static constexpr int kProfileBackground = 1; |
| |
| static constexpr uint32_t kCalleeSaveSize = 6u; |
| |
| // 64 bit so that we can share the same asm offsets for both 32 and 64 bits. |
| uint64_t callee_save_methods_[kCalleeSaveSize]; |
| GcRoot<mirror::Throwable> pre_allocated_OutOfMemoryError_; |
| GcRoot<mirror::Throwable> pre_allocated_NoClassDefFoundError_; |
| ArtMethod* resolution_method_; |
| ArtMethod* imt_conflict_method_; |
| // Unresolved method has the same behavior as the conflict method, it is used by the class linker |
| // for differentiating between unfilled imt slots vs conflict slots in superclasses. |
| ArtMethod* imt_unimplemented_method_; |
| |
| // Special sentinel object used to invalid conditions in JNI (cleared weak references) and |
| // JDWP (invalid references). |
| GcRoot<mirror::Object> sentinel_; |
| |
| InstructionSet instruction_set_; |
| QuickMethodFrameInfo callee_save_method_frame_infos_[kCalleeSaveSize]; |
| |
| CompilerCallbacks* compiler_callbacks_; |
| bool is_zygote_; |
| bool must_relocate_; |
| bool is_concurrent_gc_enabled_; |
| bool is_explicit_gc_disabled_; |
| bool dex2oat_enabled_; |
| bool image_dex2oat_enabled_; |
| |
| std::string compiler_executable_; |
| std::string patchoat_executable_; |
| std::vector<std::string> compiler_options_; |
| std::vector<std::string> image_compiler_options_; |
| std::string image_location_; |
| |
| std::string boot_class_path_string_; |
| std::string class_path_string_; |
| std::vector<std::string> properties_; |
| |
| std::list<ti::AgentSpec> agent_specs_; |
| std::list<std::unique_ptr<ti::Agent>> agents_; |
| std::vector<Plugin> plugins_; |
| |
| // The default stack size for managed threads created by the runtime. |
| size_t default_stack_size_; |
| |
| gc::Heap* heap_; |
| |
| std::unique_ptr<ArenaPool> jit_arena_pool_; |
| std::unique_ptr<ArenaPool> arena_pool_; |
| // Special low 4gb pool for compiler linear alloc. We need ArtFields to be in low 4gb if we are |
| // compiling using a 32 bit image on a 64 bit compiler in case we resolve things in the image |
| // since the field arrays are int arrays in this case. |
| std::unique_ptr<ArenaPool> low_4gb_arena_pool_; |
| |
| // Shared linear alloc for now. |
| std::unique_ptr<LinearAlloc> linear_alloc_; |
| |
| // The number of spins that are done before thread suspension is used to forcibly inflate. |
| size_t max_spins_before_thin_lock_inflation_; |
| MonitorList* monitor_list_; |
| MonitorPool* monitor_pool_; |
| |
| ThreadList* thread_list_; |
| |
| InternTable* intern_table_; |
| |
| ClassLinker* class_linker_; |
| |
| SignalCatcher* signal_catcher_; |
| |
| // If true, the runtime will connect to tombstoned via a socket to |
| // request an open file descriptor to write its traces to. |
| bool use_tombstoned_traces_; |
| |
| // Location to which traces must be written on SIGQUIT. Only used if |
| // tombstoned_traces_ == false. |
| std::string stack_trace_file_; |
| |
| std::unique_ptr<JavaVMExt> java_vm_; |
| |
| std::unique_ptr<jit::Jit> jit_; |
| std::unique_ptr<jit::JitOptions> jit_options_; |
| |
| // Fault message, printed when we get a SIGSEGV. |
| Mutex fault_message_lock_ DEFAULT_MUTEX_ACQUIRED_AFTER; |
| std::string fault_message_ GUARDED_BY(fault_message_lock_); |
| |
| // A non-zero value indicates that a thread has been created but not yet initialized. Guarded by |
| // the shutdown lock so that threads aren't born while we're shutting down. |
| size_t threads_being_born_ GUARDED_BY(Locks::runtime_shutdown_lock_); |
| |
| // Waited upon until no threads are being born. |
| std::unique_ptr<ConditionVariable> shutdown_cond_ GUARDED_BY(Locks::runtime_shutdown_lock_); |
| |
| // Set when runtime shutdown is past the point that new threads may attach. |
| bool shutting_down_ GUARDED_BY(Locks::runtime_shutdown_lock_); |
| |
| // The runtime is starting to shutdown but is blocked waiting on shutdown_cond_. |
| bool shutting_down_started_ GUARDED_BY(Locks::runtime_shutdown_lock_); |
| |
| bool started_; |
| |
| // New flag added which tells us if the runtime has finished starting. If |
| // this flag is set then the Daemon threads are created and the class loader |
| // is created. This flag is needed for knowing if its safe to request CMS. |
| bool finished_starting_; |
| |
| // Hooks supported by JNI_CreateJavaVM |
| jint (*vfprintf_)(FILE* stream, const char* format, va_list ap); |
| void (*exit_)(jint status); |
| void (*abort_)(); |
| |
| bool stats_enabled_; |
| RuntimeStats stats_; |
| |
| const bool is_running_on_memory_tool_; |
| |
| std::unique_ptr<TraceConfig> trace_config_; |
| |
| instrumentation::Instrumentation instrumentation_; |
| |
| jobject main_thread_group_; |
| jobject system_thread_group_; |
| |
| // As returned by ClassLoader.getSystemClassLoader(). |
| jobject system_class_loader_; |
| |
| // If true, then we dump the GC cumulative timings on shutdown. |
| bool dump_gc_performance_on_shutdown_; |
| |
| // Transactions used for pre-initializing classes at compilation time. |
| // Support nested transactions, maintain a list containing all transactions. Transactions are |
| // handled under a stack discipline. Because GC needs to go over all transactions, we choose list |
| // as substantial data structure instead of stack. |
| std::list<std::unique_ptr<Transaction>> preinitialization_transactions_; |
| |
| // If kNone, verification is disabled. kEnable by default. |
| verifier::VerifyMode verify_; |
| |
| // If true, the runtime may use dex files directly with the interpreter if an oat file is not |
| // available/usable. |
| bool allow_dex_file_fallback_; |
| |
| // List of supported cpu abis. |
| std::vector<std::string> cpu_abilist_; |
| |
| // Specifies target SDK version to allow workarounds for certain API levels. |
| int32_t target_sdk_version_; |
| |
| // Implicit checks flags. |
| bool implicit_null_checks_; // NullPointer checks are implicit. |
| bool implicit_so_checks_; // StackOverflow checks are implicit. |
| bool implicit_suspend_checks_; // Thread suspension checks are implicit. |
| |
| // Whether or not the sig chain (and implicitly the fault handler) should be |
| // disabled. Tools like dex2oat or patchoat don't need them. This enables |
| // building a statically link version of dex2oat. |
| bool no_sig_chain_; |
| |
| // Force the use of native bridge even if the app ISA matches the runtime ISA. |
| bool force_native_bridge_; |
| |
| // Whether or not a native bridge has been loaded. |
| // |
| // The native bridge allows running native code compiled for a foreign ISA. The way it works is, |
| // if standard dlopen fails to load native library associated with native activity, it calls to |
| // the native bridge to load it and then gets the trampoline for the entry to native activity. |
| // |
| // The option 'native_bridge_library_filename' specifies the name of the native bridge. |
| // When non-empty the native bridge will be loaded from the given file. An empty value means |
| // that there's no native bridge. |
| bool is_native_bridge_loaded_; |
| |
| // Whether we are running under native debugger. |
| bool is_native_debuggable_; |
| |
| // whether or not any async exceptions have ever been thrown. This is used to speed up the |
| // MterpShouldSwitchInterpreters function. |
| bool async_exceptions_thrown_; |
| |
| // Whether Java code needs to be debuggable. |
| bool is_java_debuggable_; |
| |
| // The maximum number of failed boots we allow before pruning the dalvik cache |
| // and trying again. This option is only inspected when we're running as a |
| // zygote. |
| uint32_t zygote_max_failed_boots_; |
| |
| // Enable experimental opcodes that aren't fully specified yet. The intent is to |
| // eventually publish them as public-usable opcodes, but they aren't ready yet. |
| // |
| // Experimental opcodes should not be used by other production code. |
| ExperimentalFlags experimental_flags_; |
| |
| // Contains the build fingerprint, if given as a parameter. |
| std::string fingerprint_; |
| |
| // Oat file manager, keeps track of what oat files are open. |
| OatFileManager* oat_file_manager_; |
| |
| // Whether or not we are on a low RAM device. |
| bool is_low_memory_mode_; |
| |
| // Whether or not we use MADV_RANDOM on files that are thought to have random access patterns. |
| // This is beneficial for low RAM devices since it reduces page cache thrashing. |
| bool madvise_random_access_; |
| |
| // Whether the application should run in safe mode, that is, interpreter only. |
| bool safe_mode_; |
| |
| // Whether threads should dump their native stack on SIGQUIT. |
| bool dump_native_stack_on_sig_quit_; |
| |
| // Whether the dalvik cache was pruned when initializing the runtime. |
| bool pruned_dalvik_cache_; |
| |
| // Whether or not we currently care about pause times. |
| ProcessState process_state_; |
| |
| // Whether zygote code is in a section that should not start threads. |
| bool zygote_no_threads_; |
| |
| // The string containing requested jdwp options |
| std::string jdwp_options_; |
| |
| // The jdwp provider we were configured with. |
| JdwpProvider jdwp_provider_; |
| |
| // Saved environment. |
| class EnvSnapshot { |
| public: |
| EnvSnapshot() = default; |
| void TakeSnapshot(); |
| char** GetSnapshot() const; |
| |
| private: |
| std::unique_ptr<char*[]> c_env_vector_; |
| std::vector<std::unique_ptr<std::string>> name_value_pairs_; |
| |
| DISALLOW_COPY_AND_ASSIGN(EnvSnapshot); |
| } env_snapshot_; |
| |
| // Generic system-weak holders. |
| std::vector<gc::AbstractSystemWeakHolder*> system_weak_holders_; |
| |
| std::unique_ptr<RuntimeCallbacks> callbacks_; |
| |
| std::atomic<uint32_t> deoptimization_counts_[ |
| static_cast<uint32_t>(DeoptimizationKind::kLast) + 1]; |
| |
| std::unique_ptr<MemMap> protected_fault_page_; |
| |
| DISALLOW_COPY_AND_ASSIGN(Runtime); |
| }; |
| |
| } // namespace art |
| |
| #endif // ART_RUNTIME_RUNTIME_H_ |