thread.h revision d6a23bd327c38b08aaf6846d426fd6824fe9780b
18d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes/* 28d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * Copyright (C) 2011 The Android Open Source Project 38d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * 48d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * Licensed under the Apache License, Version 2.0 (the "License"); 58d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * you may not use this file except in compliance with the License. 68d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * You may obtain a copy of the License at 78d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * 88d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * http://www.apache.org/licenses/LICENSE-2.0 98d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * 108d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * Unless required by applicable law or agreed to in writing, software 118d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * distributed under the License is distributed on an "AS IS" BASIS, 128d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 138d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * See the License for the specific language governing permissions and 148d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * limitations under the License. 158d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes */ 160e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 170e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro#ifndef ART_SRC_THREAD_H_ 180e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro#define ART_SRC_THREAD_H_ 190e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 20b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro#include <pthread.h> 21a09576416788b916095739e43a16917e7948f3a4Elliott Hughes 2202b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes#include <bitset> 23306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers#include <deque> 24a09576416788b916095739e43a16917e7948f3a4Elliott Hughes#include <iosfwd> 25b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers#include <list> 268daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes#include <string> 27b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 28761600567d73b23324ae0251e871c15d6849ffd8Elliott Hughes#include "base/macros.h" 29578bbdc684db8ed68e9fedbc678669d27fa68b6eBrian Carlstrom#include "globals.h" 30306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers#include "jvalue.h" 3157b86d47b66322693a070185fadfb43cb9c12eabIan Rogers#include "oat/runtime/oat_support_entrypoints.h" 3281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers#include "locks.h" 33578bbdc684db8ed68e9fedbc678669d27fa68b6eBrian Carlstrom#include "offsets.h" 342dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "root_visitor.h" 359d5ccec86d60c9ddd811836b9a2bc28d0b3d11feElliott Hughes#include "runtime_stats.h" 3668e76526e98432625464022cb26f66b9ef6f5af4Elliott Hughes#include "stack.h" 371f5393447b9f45be7918042d9ee7b521376de866Ian Rogers#include "stack_indirect_reference_table.h" 382dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "thread_state.h" 3962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers#include "throw_location.h" 40bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers#include "UniquePtr.h" 41b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 420e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapironamespace art { 430e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 442dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersnamespace mirror { 4581d425b0b232962441616f8b14f73620bffef5e5Ian Rogersclass AbstractMethod; 4669f5bc6759f256a146eefd8a7141d39fcc3b0421Elliott Hughesclass Array; 4737f7a40f6789bb287f287a9af00777af9d6428eeElliott Hughesclass Class; 48edcc09c737b00462881f147602656739d029571eElliott Hughesclass ClassLoader; 492dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersclass Object; 502dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogerstemplate<class T> class ObjectArray; 512dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogerstemplate<class T> class PrimitiveArray; 522dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogerstypedef PrimitiveArray<int32_t> IntArray; 532dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersclass StackTraceElement; 542dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersclass StaticStorageBase; 552dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersclass Throwable; 562dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers} // namespace mirror 572dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersclass BaseMutex; 582dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersclass ClassLinker; 597a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogersclass Closure; 60bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogersclass Context; 611b09b094a85e03f6ef5f687f58bb91c433273ba1Ian Rogersstruct DebugInvokeReq; 6281d425b0b232962441616f8b14f73620bffef5e5Ian Rogersclass DexFile; 63120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogersstruct JavaVMExt; 6481d425b0b232962441616f8b14f73620bffef5e5Ian Rogersstruct JNIEnvExt; 658daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughesclass Monitor; 66b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiroclass Runtime; 6700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersclass ScopedObjectAccess; 6800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersclass ScopedObjectAccessUnchecked; 69f7ad17e108b9357d7c94c6218a8521140a667f3dLogan Chienclass ShadowFrame; 7040381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstromclass Thread; 7140381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstromclass ThreadList; 720e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 7334e069606d6f1698cd3c33b39e72b79ae27e1c7bElliott Hughes// Thread priorities. These must match the Thread.MIN_PRIORITY, 7434e069606d6f1698cd3c33b39e72b79ae27e1c7bElliott Hughes// Thread.NORM_PRIORITY, and Thread.MAX_PRIORITY constants. 7534e069606d6f1698cd3c33b39e72b79ae27e1c7bElliott Hughesenum ThreadPriority { 7634e069606d6f1698cd3c33b39e72b79ae27e1c7bElliott Hughes kMinThreadPriority = 1, 7734e069606d6f1698cd3c33b39e72b79ae27e1c7bElliott Hughes kNormThreadPriority = 5, 7834e069606d6f1698cd3c33b39e72b79ae27e1c7bElliott Hughes kMaxThreadPriority = 10, 7934e069606d6f1698cd3c33b39e72b79ae27e1c7bElliott Hughes}; 80fc1d9f581592d54cc14240b9909824af38656931Elliott Hughes 81474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogersenum ThreadFlag { 8250ffee20ced9c0c7ac68889c86be8844cf120cf2Ian Rogers kSuspendRequest = 1, // If set implies that suspend_count_ > 0 and the Thread should enter the 8350ffee20ced9c0c7ac68889c86be8844cf120cf2Ian Rogers // safepoint handler. 8462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers kCheckpointRequest = 2 // Request that the thread do some checkpoint work and then continue. 85474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers}; 86474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers 87df1ce91ba97bc79a0637e5504b39318fb1c9f577Ian Rogersclass PACKED(4) Thread { 8834e069606d6f1698cd3c33b39e72b79ae27e1c7bElliott Hughes public: 89932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // Space to throw a StackOverflowError in. 9062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers static const size_t kStackOverflowReservedBytes = 16 * KB; 91c143c55718342519db5398e41dda31422cf16c79buzbee 92462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // Creates a new native thread corresponding to the given managed peer. 93462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // Used to implement Thread.start. 9452673ffae0025d86f4023735581f19ebcc477487Ian Rogers static void CreateNativeThread(JNIEnv* env, jobject peer, size_t stack_size, bool daemon); 9561e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 96462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // Attaches the calling native thread to the runtime, returning the new native peer. 97462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // Used to implement JNI AttachCurrentThread and AttachCurrentThreadAsDaemon calls. 98664bebf92eb2151b9b570ccd42ac4b6056c3ea9cMathieu Chartier static Thread* Attach(const char* thread_name, bool as_daemon, jobject thread_group, 99664bebf92eb2151b9b570ccd42ac4b6056c3ea9cMathieu Chartier bool create_peer); 100b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 101caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom // Reset internal state of child thread after fork. 102caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom void InitAfterFork(); 103caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom 1040878d654e7be8c9666579e22522704d8887415ccIan Rogers static Thread* Current() { 105e0447357fa8dece635c213d360cd03160cc2d8a0Elliott Hughes // We rely on Thread::Current returning NULL for a detached thread, so it's not obvious 106e0447357fa8dece635c213d360cd03160cc2d8a0Elliott Hughes // that we can replace this with a direct %fs access on x86. 1070878d654e7be8c9666579e22522704d8887415ccIan Rogers if(!is_started_) { 1080878d654e7be8c9666579e22522704d8887415ccIan Rogers return NULL; 1090878d654e7be8c9666579e22522704d8887415ccIan Rogers } else { 1100878d654e7be8c9666579e22522704d8887415ccIan Rogers void* thread = pthread_getspecific(Thread::pthread_key_self_); 1110878d654e7be8c9666579e22522704d8887415ccIan Rogers return reinterpret_cast<Thread*>(thread); 1120878d654e7be8c9666579e22522704d8887415ccIan Rogers } 1130e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro } 1140e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 1152dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers static Thread* FromManagedThread(const ScopedObjectAccessUnchecked& ts, 1162dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* thread_peer) 117a77f0f68a59870ff027dad654fe31eb3fdaf3d5djeffhao EXCLUSIVE_LOCKS_REQUIRED(Locks::thread_list_lock_) 118b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) 119b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 12000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers static Thread* FromManagedThread(const ScopedObjectAccessUnchecked& ts, jobject thread) 121a77f0f68a59870ff027dad654fe31eb3fdaf3d5djeffhao EXCLUSIVE_LOCKS_REQUIRED(Locks::thread_list_lock_) 122b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) 123b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 1248daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes 12528fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes // Translates 172 to pAllocArrayFromCode and so on. 12628fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes static void DumpThreadOffset(std::ostream& os, uint32_t offset, size_t size_of_pointers); 12728fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes 12800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Dumps a one-line summary of thread state (used for operator<<). 12900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers void ShortDump(std::ostream& os) const; 13000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 13100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Dumps the detailed thread state and the thread stack (used for SIGQUIT). 13200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers void Dump(std::ostream& os) const 133b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) 134b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 135a09576416788b916095739e43a16917e7948f3a4Elliott Hughes 136abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes // Dumps the SIGQUIT per-thread header. 'thread' can be NULL for a non-attached thread, in which 137abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes // case we use 'tid' to identify the thread, and we'll include as much information as we can. 13800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers static void DumpState(std::ostream& os, const Thread* thread, pid_t tid) 139cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) 140cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 141abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes 142474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers ThreadState GetState() const { 14330e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers return static_cast<ThreadState>(state_and_flags_.as_struct.state); 1440cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers } 1450cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers 146474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers ThreadState SetState(ThreadState new_state); 1478d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes 14881d425b0b232962441616f8b14f73620bffef5e5Ian Rogers int GetSuspendCount() const EXCLUSIVE_LOCKS_REQUIRED(Locks::thread_suspend_count_lock_) { 14900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return suspend_count_; 15052673ffae0025d86f4023735581f19ebcc477487Ian Rogers } 15152673ffae0025d86f4023735581f19ebcc477487Ian Rogers 15281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers int GetDebugSuspendCount() const EXCLUSIVE_LOCKS_REQUIRED(Locks::thread_suspend_count_lock_) { 15300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return debug_suspend_count_; 15400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 15500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 156858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier bool IsSuspended() const { 157858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier union StateAndFlags state_and_flags = state_and_flags_; 158858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier return state_and_flags.as_struct.state != kRunnable && 159858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier (state_and_flags.as_struct.flags & kSuspendRequest) != 0; 16000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 16100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 16201ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers void ModifySuspendCount(Thread* self, int delta, bool for_debugger) 163b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers EXCLUSIVE_LOCKS_REQUIRED(Locks::thread_suspend_count_lock_); 16400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 1650e4627e593bc39f8e3d89c31f8977d55054c07ccMathieu Chartier bool RequestCheckpoint(Closure* function); 166858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier 16700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Called when thread detected that the thread_suspend_count_ was non-zero. Gives up share of 16800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // mutator_lock_ and waits until it is resumed and thread_suspend_count_ is zero. 1699da7f59c9059397182b9a97e898a42ec06d4d646Ian Rogers void FullSuspendCheck() 170b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) 171b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 17200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 17300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Transition from non-runnable to runnable state acquiring share on mutator_lock_. 17400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ThreadState TransitionFromSuspendedToRunnable() 175b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) 176693ff61274cd2c9b8eb7e68c370f84a911b8ca52Ian Rogers SHARED_LOCK_FUNCTION(Locks::mutator_lock_) 1771ffa32f0be7becec4907b26ead353e4b17e1219cIan Rogers ALWAYS_INLINE; 17800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 17900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Transition from runnable into a state where mutator privileges are denied. Releases share of 18000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // mutator lock. 18100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers void TransitionFromRunnableToSuspended(ThreadState new_state) 182b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) 183693ff61274cd2c9b8eb7e68c370f84a911b8ca52Ian Rogers UNLOCK_FUNCTION(Locks::mutator_lock_) 1841ffa32f0be7becec4907b26ead353e4b17e1219cIan Rogers ALWAYS_INLINE; 185038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes 18600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Wait for a debugger suspension on the thread associated with the given peer. Returns the 18700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // thread on success, else NULL. If the thread should be suspended then request_suspension should 18800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // be true on entry. If the suspension times out then *timeout is set to true. 189f327e07b37e349b1ec5eaad6dc294a9b7a081d20Elliott Hughes static Thread* SuspendForDebugger(jobject peer, bool request_suspension, bool* timed_out) 190b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers LOCKS_EXCLUDED(Locks::mutator_lock_, 191b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers Locks::thread_list_lock_, 192b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers Locks::thread_suspend_count_lock_); 1930cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers 1940399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Once called thread suspension will cause an assertion failure. 1950399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers#ifndef NDEBUG 19652673ffae0025d86f4023735581f19ebcc477487Ian Rogers const char* StartAssertNoThreadSuspension(const char* cause) { 19752673ffae0025d86f4023735581f19ebcc477487Ian Rogers CHECK(cause != NULL); 19852673ffae0025d86f4023735581f19ebcc477487Ian Rogers const char* previous_cause = last_no_thread_suspension_cause_; 1990399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers no_thread_suspension_++; 20052673ffae0025d86f4023735581f19ebcc477487Ian Rogers last_no_thread_suspension_cause_ = cause; 20152673ffae0025d86f4023735581f19ebcc477487Ian Rogers return previous_cause; 2020399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 20352673ffae0025d86f4023735581f19ebcc477487Ian Rogers#else 20452673ffae0025d86f4023735581f19ebcc477487Ian Rogers const char* StartAssertNoThreadSuspension(const char* cause) { 20552673ffae0025d86f4023735581f19ebcc477487Ian Rogers CHECK(cause != NULL); 20652673ffae0025d86f4023735581f19ebcc477487Ian Rogers return NULL; 20752673ffae0025d86f4023735581f19ebcc477487Ian Rogers } 20852673ffae0025d86f4023735581f19ebcc477487Ian Rogers#endif 20952673ffae0025d86f4023735581f19ebcc477487Ian Rogers 2100399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // End region where no thread suspension is expected. 2110399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers#ifndef NDEBUG 21252673ffae0025d86f4023735581f19ebcc477487Ian Rogers void EndAssertNoThreadSuspension(const char* old_cause) { 21352673ffae0025d86f4023735581f19ebcc477487Ian Rogers CHECK(old_cause != NULL || no_thread_suspension_ == 1); 21452673ffae0025d86f4023735581f19ebcc477487Ian Rogers CHECK_GT(no_thread_suspension_, 0U); 2150399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers no_thread_suspension_--; 21652673ffae0025d86f4023735581f19ebcc477487Ian Rogers last_no_thread_suspension_cause_ = old_cause; 21752673ffae0025d86f4023735581f19ebcc477487Ian Rogers } 21852673ffae0025d86f4023735581f19ebcc477487Ian Rogers#else 21952673ffae0025d86f4023735581f19ebcc477487Ian Rogers void EndAssertNoThreadSuspension(const char*) { 2200399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 22152673ffae0025d86f4023735581f19ebcc477487Ian Rogers#endif 2220399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 22300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 22400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers void AssertThreadSuspensionIsAllowable(bool check_locks = true) const; 2250399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 22600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers bool IsDaemon() const { 22700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return daemon_; 22800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 22900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 2302dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers bool HoldsLock(mirror::Object*); 2315f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes 2328daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes /* 2338daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes * Changes the priority of this thread to match that of the java.lang.Thread object. 2348daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes * 2358daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes * We map a priority value from 1-10 to Linux "nice" values, where lower 2368daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes * numbers indicate higher priority. 2378daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes */ 2388daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes void SetNativePriority(int newPriority); 2398daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes 2408daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes /* 2418daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes * Returns the thread priority for the current thread by querying the system. 2428daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes * This is useful when attaching a thread through JNI. 2438daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes * 2448daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes * Returns a value from 1 to 10 (compatible with java.lang.Thread values). 2458daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes */ 2468daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes static int GetNativePriority(); 2478daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes 248dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes uint32_t GetThinLockId() const { 249dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes return thin_lock_id_; 250b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro } 251b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 252d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes pid_t GetTid() const { 253d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes return tid_; 254d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 255e27955ca3ca960928d4dbd6cb79711fce06950b3Elliott Hughes 256ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes // Returns the java.lang.Thread's name, or NULL if this Thread* doesn't have a peer. 2572dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::String* GetThreadName(const ScopedObjectAccessUnchecked& ts) const 258b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 259899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes 260ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes // Sets 'name' to the java.lang.Thread's name. This requires no transition to managed code, 261ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes // allocation, or locking. 262ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes void GetThreadName(std::string& name) const; 263ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes 264899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes // Sets the thread's name. 265b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers void SetThreadName(const char* name) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 266fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes 2672dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* GetPeer() const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 268cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers CHECK(jpeer_ == NULL); 269cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers return opeer_; 2708daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes } 2718daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes 27200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers bool HasPeer() const { 27380537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes return jpeer_ != NULL || opeer_ != NULL; 27400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 27500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 2769d5ccec86d60c9ddd811836b9a2bc28d0b3d11feElliott Hughes RuntimeStats* GetStats() { 2779d5ccec86d60c9ddd811836b9a2bc28d0b3d11feElliott Hughes return &stats_; 2789d5ccec86d60c9ddd811836b9a2bc28d0b3d11feElliott Hughes } 2799d5ccec86d60c9ddd811836b9a2bc28d0b3d11feElliott Hughes 2807dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes bool IsStillStarting() const; 2817dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes 2820e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro bool IsExceptionPending() const { 2831eab958cde39a7e2f0e5ce01730f4e2e75c72519jeffhao return exception_ != NULL; 2840e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro } 2850e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 28662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Throwable* GetException(ThrowLocation* throw_location) const 28762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 28862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (throw_location != NULL) { 28962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers *throw_location = throw_location_; 29062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 2910e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro return exception_; 2920e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro } 2930e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 29400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers void AssertNoPendingException() const; 29500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 29662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers void SetException(const ThrowLocation& throw_location, mirror::Throwable* new_exception) 29762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 2980cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers CHECK(new_exception != NULL); 299474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers // TODO: DCHECK(!IsExceptionPending()); 300474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers exception_ = new_exception; 30162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers throw_location_ = throw_location; 3020cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers } 3030cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers 3040cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers void ClearException() { 3050cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers exception_ = NULL; 30662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers throw_location_.Clear(); 30794d6df471a406a03bb1afba8ca3ae9c0fbf366b5jeffhao } 30894d6df471a406a03bb1afba8ca3ae9c0fbf366b5jeffhao 309bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers // Find catch block and perform long jump to appropriate exception handle 31094d6df471a406a03bb1afba8ca3ae9c0fbf366b5jeffhao void QuickDeliverException() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 311bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 312bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers Context* GetLongJumpContext(); 3130399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers void ReleaseLongJumpContext(Context* context) { 3140399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers DCHECK(long_jump_context_ == NULL); 3150399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers long_jump_context_ = context; 3161a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 3171a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 31862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::AbstractMethod* GetCurrentMethod(uint32_t* dex_pc) const 319b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 3200399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 32162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation GetCurrentLocationForThrow() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 32262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 323bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers void SetTopOfStack(void* stack, uintptr_t pc) { 3242dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod** top_method = reinterpret_cast<mirror::AbstractMethod**>(stack); 3250399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers managed_stack_.SetTopQuickFrame(top_method); 3260399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers managed_stack_.SetTopQuickFramePc(pc); 3270e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro } 3280e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 32911ffc2d02b7d979f26a8a04013fce3eb4f9a2816Jeff Hao void SetTopOfShadowStack(ShadowFrame* top) { 33011ffc2d02b7d979f26a8a04013fce3eb4f9a2816Jeff Hao managed_stack_.SetTopShadowFrame(top); 33111ffc2d02b7d979f26a8a04013fce3eb4f9a2816Jeff Hao } 33211ffc2d02b7d979f26a8a04013fce3eb4f9a2816Jeff Hao 3330399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers bool HasManagedStack() const { 3340399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return managed_stack_.GetTopQuickFrame() != NULL || managed_stack_.GetTopShadowFrame() != NULL; 335bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers } 336bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 337a4f94740f9d66b21f4bcd3a225c434aa29cfa323Elliott Hughes // If 'msg' is NULL, no detail message is set. 33862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers void ThrowNewException(const ThrowLocation& throw_location, 33962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* exception_class_descriptor, const char* msg) 340b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 3415cb5ad27944efb08d4556b3c0d362302e37e832bElliott Hughes 342a4f94740f9d66b21f4bcd3a225c434aa29cfa323Elliott Hughes // If 'msg' is NULL, no detail message is set. An exception must be pending, and will be 343a4f94740f9d66b21f4bcd3a225c434aa29cfa323Elliott Hughes // used as the new exception's cause. 34462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers void ThrowNewWrappedException(const ThrowLocation& throw_location, 34562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* exception_class_descriptor, 34662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* msg) 347b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 348a4f94740f9d66b21f4bcd3a225c434aa29cfa323Elliott Hughes 34962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers void ThrowNewExceptionF(const ThrowLocation& throw_location, 35062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* exception_class_descriptor, const char* fmt, ...) 35162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers __attribute__((format(printf, 4, 5))) 352b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 353a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes 35462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers void ThrowNewExceptionV(const ThrowLocation& throw_location, 35562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* exception_class_descriptor, const char* fmt, va_list ap) 356b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 3574a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes 3582ced6a534157d5d963693346904389c19775d2daElliott Hughes // OutOfMemoryError is special, because we need to pre-allocate an instance. 3598a8b9cbe158ee13477f2381f164c519762a06fefElliott Hughes // Only the GC should call this. 360120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers void ThrowOutOfMemoryError(const char* msg) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 36179082e367845bbd68ec44ef2ddd1be8ef0e1550fElliott Hughes 362be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes static void Startup(); 363038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes static void FinishStartup(); 364c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes static void Shutdown(); 365b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 366b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers // JNI methods 36769f5bc6759f256a146eefd8a7141d39fcc3b0421Elliott Hughes JNIEnvExt* GetJniEnv() const { 368b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers return jni_env_; 369b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 370b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 371408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Convert a jobject into a Object* 3722dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* DecodeJObject(jobject obj) const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 373b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 3748daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes // Implements java.lang.Thread.interrupted. 37581d425b0b232962441616f8b14f73620bffef5e5Ian Rogers bool Interrupted(); 3768daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes // Implements java.lang.Thread.isInterrupted. 37781d425b0b232962441616f8b14f73620bffef5e5Ian Rogers bool IsInterrupted(); 37881d425b0b232962441616f8b14f73620bffef5e5Ian Rogers void Interrupt(); 37981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers void Notify(); 3805f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes 3812dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ClassLoader* GetClassLoaderOverride() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 382c143c55718342519db5398e41dda31422cf16c79buzbee return class_loader_override_; 383c143c55718342519db5398e41dda31422cf16c79buzbee } 384c143c55718342519db5398e41dda31422cf16c79buzbee 3852dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers void SetClassLoaderOverride(mirror::ClassLoader* class_loader_override) { 386c143c55718342519db5398e41dda31422cf16c79buzbee class_loader_override_ = class_loader_override; 387c143c55718342519db5398e41dda31422cf16c79buzbee } 388c143c55718342519db5398e41dda31422cf16c79buzbee 389aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Create the internal representation of a stack trace, that is more time 390aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // and space efficient to compute than the StackTraceElement[] 39164b6d145fa53b8dfb07a8fc2426af13f155d5a4dIan Rogers jobject CreateInternalStackTrace(const ScopedObjectAccessUnchecked& soa) const 392b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 39301158d7a57c8321370667a6045220237d16e0da8Elliott Hughes 39401158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Convert an internal stack trace representation (returned by CreateInternalStackTrace) to a 39501158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // StackTraceElement[]. If output_array is NULL, a new array is created, otherwise as many 39601158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // frames as will fit are written into the given array. If stack_depth is non-NULL, it's updated 39701158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // with the number of valid frames in the returned array. 39801158d7a57c8321370667a6045220237d16e0da8Elliott Hughes static jobjectArray InternalStackTraceToStackTraceElementArray(JNIEnv* env, jobject internal, 39901158d7a57c8321370667a6045220237d16e0da8Elliott Hughes jobjectArray output_array = NULL, int* stack_depth = NULL); 40055df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao 40162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers void VisitRoots(RootVisitor* visitor, void* arg) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 4026f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 4032dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers void VerifyRoots(VerifyRootVisitor* visitor, void* arg) 4046f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 405410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes 406b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers void VerifyStack() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 407250455229aa0cc07bbd18174efe510bd52631a99jeffhao 408be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes // 409be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes // Offsets of various members of native Thread class, used by compiled code. 410be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes // 411be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 412be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes static ThreadOffset SelfOffset() { 413be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes return ThreadOffset(OFFSETOF_MEMBER(Thread, self_)); 414be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 415be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 416be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes static ThreadOffset ExceptionOffset() { 417be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes return ThreadOffset(OFFSETOF_MEMBER(Thread, exception_)); 418be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 419be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 42007ec8e17c978e3bda0202693e6432b56349a5867Ian Rogers static ThreadOffset PeerOffset() { 42107ec8e17c978e3bda0202693e6432b56349a5867Ian Rogers return ThreadOffset(OFFSETOF_MEMBER(Thread, opeer_)); 42207ec8e17c978e3bda0202693e6432b56349a5867Ian Rogers } 42307ec8e17c978e3bda0202693e6432b56349a5867Ian Rogers 42454e7df1896a4066cbb9fe6f72249829f0b8c49c6Elliott Hughes static ThreadOffset ThinLockIdOffset() { 425be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes return ThreadOffset(OFFSETOF_MEMBER(Thread, thin_lock_id_)); 426be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 427be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 428be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes static ThreadOffset CardTableOffset() { 429be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes return ThreadOffset(OFFSETOF_MEMBER(Thread, card_table_)); 430be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 431be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 432474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers static ThreadOffset ThreadFlagsOffset() { 433474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers return ThreadOffset(OFFSETOF_MEMBER(Thread, state_and_flags_)); 434be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 435be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 436932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // Size of stack less any space reserved for stack overflow 437d752132c73072084a3def9257cca4fcee76047b6jeffhao size_t GetStackSize() const { 43830fab40ee5a07af6b8c3b6b0e9438071695a57f4Ian Rogers return stack_size_ - (stack_end_ - stack_begin_); 439932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers } 440932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers 441d752132c73072084a3def9257cca4fcee76047b6jeffhao byte* GetStackEnd() const { 442d752132c73072084a3def9257cca4fcee76047b6jeffhao return stack_end_; 443d752132c73072084a3def9257cca4fcee76047b6jeffhao } 444d752132c73072084a3def9257cca4fcee76047b6jeffhao 445932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // Set the stack end to that to be used during a stack overflow 446b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers void SetStackEndForStackOverflow() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 447932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers 448932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // Set the stack end to that to be used during regular execution 449932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers void ResetDefaultStackEnd() { 450932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // Our stacks grow down, so we want stack_end_ to be near there, but reserving enough room 451932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // to throw a StackOverflowError. 45230fab40ee5a07af6b8c3b6b0e9438071695a57f4Ian Rogers stack_end_ = stack_begin_ + kStackOverflowReservedBytes; 453932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers } 454932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers 455120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers bool IsHandlingStackOverflow() const { 456120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers return stack_end_ == stack_begin_; 457120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 458120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 459449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes static ThreadOffset StackEndOffset() { 460449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes return ThreadOffset(OFFSETOF_MEMBER(Thread, stack_end_)); 461be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 462be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 463be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes static ThreadOffset JniEnvOffset() { 464be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes return ThreadOffset(OFFSETOF_MEMBER(Thread, jni_env_)); 465be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 466be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 467be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes static ThreadOffset TopOfManagedStackOffset() { 4680399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return ThreadOffset(OFFSETOF_MEMBER(Thread, managed_stack_) + 4690399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ManagedStack::TopQuickFrameOffset()); 470be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 471be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 472bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers static ThreadOffset TopOfManagedStackPcOffset() { 4730399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return ThreadOffset(OFFSETOF_MEMBER(Thread, managed_stack_) + 4740399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ManagedStack::TopQuickFramePcOffset()); 4750399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 4760399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 4770399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers const ManagedStack* GetManagedStack() const { 4780399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return &managed_stack_; 4790399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 4800399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 4810399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Linked list recording fragments of managed stack. 4820399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers void PushManagedStackFragment(ManagedStack* fragment) { 4830399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers managed_stack_.PushManagedStackFragment(fragment); 4840399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 4850399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers void PopManagedStackFragment(const ManagedStack& fragment) { 4860399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers managed_stack_.PopManagedStackFragment(fragment); 487bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers } 488bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 4890399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ShadowFrame* PushShadowFrame(ShadowFrame* new_top_frame) { 4900399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return managed_stack_.PushShadowFrame(new_top_frame); 491de479be99328d2113bf483e082c9ecf235a34d69TDYa } 492de479be99328d2113bf483e082c9ecf235a34d69TDYa 493de479be99328d2113bf483e082c9ecf235a34d69TDYa ShadowFrame* PopShadowFrame() { 4940399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return managed_stack_.PopShadowFrame(); 495de479be99328d2113bf483e082c9ecf235a34d69TDYa } 496f7ad17e108b9357d7c94c6218a8521140a667f3dLogan Chien 497d668a06b5dcc3b0f7f788da4d756cd4ee6f1d0faTDYa static ThreadOffset TopShadowFrameOffset() { 4980399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return ThreadOffset(OFFSETOF_MEMBER(Thread, managed_stack_) + 4990399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ManagedStack::TopShadowFrameOffset()); 500d668a06b5dcc3b0f7f788da4d756cd4ee6f1d0faTDYa } 501d668a06b5dcc3b0f7f788da4d756cd4ee6f1d0faTDYa 502ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa // Number of references allocated in JNI ShadowFrames on this thread 503ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa size_t NumJniShadowFrameReferences() const { 504ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa return managed_stack_.NumJniShadowFrameReferences(); 5050399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 5060399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 5070399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Number of references in SIRTs on this thread 5080399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers size_t NumSirtReferences(); 5090399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 510ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa // Number of references allocated in SIRTs & JNI shadow frames on this thread 5110399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers size_t NumStackReferences() { 512ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa return NumSirtReferences() + NumJniShadowFrameReferences(); 5130399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers }; 5140399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 5150399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Is the given obj in this thread's stack indirect reference table? 516cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers bool SirtContains(jobject obj) const; 5170399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 5182dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers void SirtVisitRoots(RootVisitor* visitor, void* arg); 5190399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 5201f5393447b9f45be7918042d9ee7b521376de866Ian Rogers void PushSirt(StackIndirectReferenceTable* sirt) { 5211f5393447b9f45be7918042d9ee7b521376de866Ian Rogers sirt->SetLink(top_sirt_); 5221f5393447b9f45be7918042d9ee7b521376de866Ian Rogers top_sirt_ = sirt; 5231f5393447b9f45be7918042d9ee7b521376de866Ian Rogers } 5241f5393447b9f45be7918042d9ee7b521376de866Ian Rogers 5251f5393447b9f45be7918042d9ee7b521376de866Ian Rogers StackIndirectReferenceTable* PopSirt() { 5261f5393447b9f45be7918042d9ee7b521376de866Ian Rogers StackIndirectReferenceTable* sirt = top_sirt_; 5271f5393447b9f45be7918042d9ee7b521376de866Ian Rogers DCHECK(sirt != NULL); 5281f5393447b9f45be7918042d9ee7b521376de866Ian Rogers top_sirt_ = top_sirt_->GetLink(); 5291f5393447b9f45be7918042d9ee7b521376de866Ian Rogers return sirt; 5301f5393447b9f45be7918042d9ee7b521376de866Ian Rogers } 53140381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom 532be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes static ThreadOffset TopSirtOffset() { 533be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes return ThreadOffset(OFFSETOF_MEMBER(Thread, top_sirt_)); 534be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 535be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 536475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes DebugInvokeReq* GetInvokeReq() { 537475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes return debug_invoke_req_; 538475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes } 539475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes 54062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers void SetDeoptimizationShadowFrame(ShadowFrame* sf); 54162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers void SetDeoptimizationReturnValue(const JValue& ret_val); 542306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers 543306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers ShadowFrame* GetAndClearDeoptimizationShadowFrame(JValue* ret_val); 544306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers 54562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers std::deque<instrumentation::InstrumentationStackFrame>* GetInstrumentationStack() { 546725a957985171d712d5c048cc3d00ff14968784bjeffhao return instrumentation_stack_; 547e343b76af81a005ef64f5e75a555389fd9147dabjeffhao } 548e343b76af81a005ef64f5e75a555389fd9147dabjeffhao 54981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers BaseMutex* GetHeldMutex(LockLevel level) const { 55000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return held_mutexes_[level]; 55100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 55200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 55381d425b0b232962441616f8b14f73620bffef5e5Ian Rogers void SetHeldMutex(LockLevel level, BaseMutex* mutex) { 55400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers held_mutexes_[level] = mutex; 55500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 556ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes 557752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier void RunCheckpointFunction(); 558858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier 559858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier bool ReadFlag(ThreadFlag flag) const { 560858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier return (state_and_flags_.as_struct.flags & flag) != 0; 561858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier } 562858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier 5639cec247849c248f6c45a14eae5414b69eb8fc67dJeff Hao bool TestAllFlags() const { 5649cec247849c248f6c45a14eae5414b69eb8fc67dJeff Hao return (state_and_flags_.as_struct.flags != 0); 5659cec247849c248f6c45a14eae5414b69eb8fc67dJeff Hao } 5669cec247849c248f6c45a14eae5414b69eb8fc67dJeff Hao 567858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier void AtomicSetFlag(ThreadFlag flag); 568858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier 569858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier void AtomicClearFlag(ThreadFlag flag); 570858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier 5710e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro private: 5725d96a7168dd3e2a4acf1a947ef12efa8f82b95c0Elliott Hughes // We have no control over the size of 'bool', but want our boolean fields 5735d96a7168dd3e2a4acf1a947ef12efa8f82b95c0Elliott Hughes // to be 4-byte quantities. 5745d96a7168dd3e2a4acf1a947ef12efa8f82b95c0Elliott Hughes typedef uint32_t bool32_t; 5755d96a7168dd3e2a4acf1a947ef12efa8f82b95c0Elliott Hughes 57652673ffae0025d86f4023735581f19ebcc477487Ian Rogers explicit Thread(bool daemon); 577b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers ~Thread() LOCKS_EXCLUDED(Locks::mutator_lock_, 578b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers Locks::thread_suspend_count_lock_); 579c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes void Destroy(); 580c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes friend class ThreadList; // For ~Thread and Destroy. 5810e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 582365c10235438607541fa2259a5fec48061b90bd8Ian Rogers void CreatePeer(const char* name, bool as_daemon, jobject thread_group); 5835fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes friend class Runtime; // For CreatePeer. 5845fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 58562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Avoid use, callers should use SetState. Used only by SignalCatcher::HandleSigQuit, ~Thread and 58662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Dbg::Disconnected. 587474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers ThreadState SetStateUnsafe(ThreadState new_state) { 588474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers ThreadState old_state = GetState(); 58930e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers state_and_flags_.as_struct.state = new_state; 590c747cffa950b8398cb8844d47e2253214c855750Ian Rogers return old_state; 591c747cffa950b8398cb8844d47e2253214c855750Ian Rogers } 592474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers friend class SignalCatcher; // For SetStateUnsafe. 59362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers friend class Dbg; // For SetStateUnsafe. 594c747cffa950b8398cb8844d47e2253214c855750Ian Rogers 59504d7aa92bc5548bc4d272b9480614f06248194ccIan Rogers void VerifyStackImpl() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 59604d7aa92bc5548bc4d272b9480614f06248194ccIan Rogers 597cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers void DumpState(std::ostream& os) const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 59800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers void DumpStack(std::ostream& os) const 599b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) 600b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 601d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 602accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Out-of-line conveniences for debugging in gdb. 603498508c1187dc07d3eae5476784cde20f5224d93Elliott Hughes static Thread* CurrentFromGdb(); // Like Thread::Current. 60400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Like Thread::Dump(std::cerr). 605b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers void DumpFromGdb() const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 606accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 60793e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes static void* CreateCallback(void* arg); 60893e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 609cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers void HandleUncaughtExceptions(ScopedObjectAccess& soa) 610cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 611cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers void RemoveFromThreadGroup(ScopedObjectAccess& soa) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 612accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 613120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers void Init(ThreadList*, JavaVMExt*) EXCLUSIVE_LOCKS_REQUIRED(Locks::runtime_shutdown_lock_); 6145d76c435082332ef79a22962386fa92a0870e378Ian Rogers void InitCardTable(); 615b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers void InitCpu(); 6163ea4ec5629613013ad9b0d7a69abdb94491ac46fbuzbee void InitFunctionPointers(); 617caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom void InitTid(); 618caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom void InitPthreadKeySelf(); 619be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes void InitStackHwm(); 620be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 621d6a23bd327c38b08aaf6846d426fd6824fe9780bElliott Hughes void SetUpAlternateSignalStack(); 622d6a23bd327c38b08aaf6846d426fd6824fe9780bElliott Hughes void TearDownAlternateSignalStack(); 623d6a23bd327c38b08aaf6846d426fd6824fe9780bElliott Hughes 624c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers void NotifyLocked(Thread* self) EXCLUSIVE_LOCKS_REQUIRED(wait_mutex_); 6255f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes 626be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes static void ThreadExitCallback(void* arg); 627b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 6280878d654e7be8c9666579e22522704d8887415ccIan Rogers // Has Thread::Startup been called? 6290878d654e7be8c9666579e22522704d8887415ccIan Rogers static bool is_started_; 6300878d654e7be8c9666579e22522704d8887415ccIan Rogers 6310399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // TLS key used to retrieve the Thread*. 6320399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers static pthread_key_t pthread_key_self_; 6330399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 63400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Used to notify threads that they should attempt to resume, they will suspend again if 63500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // their suspend count is > 0. 636c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers static ConditionVariable* resume_cond_ GUARDED_BY(Locks::thread_suspend_count_lock_); 63700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 6380399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // --- Frequently accessed fields first for short offsets --- 6390399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 640474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers // 32 bits of atomically changed state and flags. Keeping as 32 bits allows and atomic CAS to 641474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers // change from being Suspended to Runnable without a suspend request occurring. 64230e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers union StateAndFlags { 643df1ce91ba97bc79a0637e5504b39318fb1c9f577Ian Rogers struct PACKED(4) { 64430e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers // Bitfield of flag values. Must be changed atomically so that flag values aren't lost. See 64530e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers // ThreadFlags for bit field meanings. 64630e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers volatile uint16_t flags; 64730e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers // Holds the ThreadState. May be changed non-atomically between Suspended (ie not Runnable) 64830e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers // transitions. Changing to Runnable requires that the suspend_request be part of the atomic 64930e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers // operation. If a thread is suspended and a suspend_request is present, a thread may not 65030e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers // change to Runnable as a GC or other operation is in progress. 65101ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers volatile uint16_t state; 65230e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers } as_struct; 65301ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers volatile int32_t as_int; 654474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers }; 65530e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers union StateAndFlags state_and_flags_; 65630e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers COMPILE_ASSERT(sizeof(union StateAndFlags) == sizeof(int32_t), 657474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers sizeof_state_and_flags_and_int32_are_different); 658474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers 6590399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // A non-zero value is used to tell the current thread to enter a safe point 6600399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // at the next poll. 661b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers int suspend_count_ GUARDED_BY(Locks::thread_suspend_count_lock_); 6620399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 6630399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // The biased card table, see CardTable for details 6640399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers byte* card_table_; 6650399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 6660399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // The pending exception or NULL. 6672dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Throwable* exception_; 6680399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 6690399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // The end of this thread's stack. This is the lowest safely-addressable address on the stack. 6700399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // We leave extra space so there's room for the code that throws StackOverflowError. 6710399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers byte* stack_end_; 6720399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 6730399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // The top of the managed stack often manipulated directly by compiler generated code. 6740399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ManagedStack managed_stack_; 6750399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 6760399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Every thread may have an associated JNI environment 6770399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers JNIEnvExt* jni_env_; 6780399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 6790399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Initialized to "this". On certain architectures (such as x86) reading 6800399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // off of Thread::Current is easy but getting the address of Thread::Current 6810399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // is hard. This field can be read off of Thread::Current to give the address. 6820399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers Thread* self_; 6830399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 684cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers // Our managed peer (an instance of java.lang.Thread). The jobject version is used during thread 685cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers // start up, until the thread is registered and the local opeer_ is used. 6862dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* opeer_; 687cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers jobject jpeer_; 6880399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 6890399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // The "lowest addressable byte" of the stack 6900399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers byte* stack_begin_; 6910399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 6920399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Size of the stack 6930399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers size_t stack_size_; 6940399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 695dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes // Thin lock thread id. This is a small integer used by the thin lock implementation. 696dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes // This is not to be confused with the native thread's tid, nor is it the value returned 697dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes // by java.lang.Thread.getId --- this is a distinct value, used only for locking. One 698dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes // important difference between this id and the ids visible to managed code is that these 699dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes // ones get reused (to ensure that they fit in the number of bits available). 700dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes uint32_t thin_lock_id_; 701b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 702d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes // System thread id. 703d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes pid_t tid_; 704d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 70562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation throw_location_; 70662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 7078daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes // Guards the 'interrupted_' and 'wait_monitor_' members. 70800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers mutable Mutex* wait_mutex_ DEFAULT_MUTEX_ACQUIRED_AFTER; 70900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ConditionVariable* wait_cond_ GUARDED_BY(wait_mutex_); 71000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Pointer to the monitor lock we're currently waiting on (or NULL). 71100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Monitor* wait_monitor_ GUARDED_BY(wait_mutex_); 71200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Thread "interrupted" status; stays raised until queried or thrown. 71300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers bool32_t interrupted_ GUARDED_BY(wait_mutex_); 7145f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes // The next thread in the wait set this thread is part of. 7155f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes Thread* wait_next_; 7168e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes // If we're blocked in MonitorEnter, this is the object we're trying to lock. 7172dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* monitor_enter_object_; 7185f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes 7195f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes friend class Monitor; 720f327e07b37e349b1ec5eaad6dc294a9b7a081d20Elliott Hughes friend class MonitorInfo; 721dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes 722408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Top of linked list of stack indirect reference tables or NULL for none 723408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers StackIndirectReferenceTable* top_sirt_; 724b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 72569759eaa6fd4386f1e6d8748052ad221087b3476Carl Shapiro Runtime* runtime_; 72669759eaa6fd4386f1e6d8748052ad221087b3476Carl Shapiro 7270399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers RuntimeStats stats_; 72845a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers 729edcc09c737b00462881f147602656739d029571eElliott Hughes // Needed to get the right ClassLoader in JNI_OnLoad, but also 730edcc09c737b00462881f147602656739d029571eElliott Hughes // useful for testing. 7312dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ClassLoader* class_loader_override_; 732c143c55718342519db5398e41dda31422cf16c79buzbee 733bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers // Thread local, lazily allocated, long jump context. Used to deliver exceptions. 73485d1545e985ac689db4bad7849880e843707c862Elliott Hughes Context* long_jump_context_; 735bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 736418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes // A boolean telling us whether we're recursively throwing OOME. 7375d96a7168dd3e2a4acf1a947ef12efa8f82b95c0Elliott Hughes bool32_t throwing_OutOfMemoryError_; 738726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes 7390399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // How much of 'suspend_count_' is by request of the debugger, used to set things right 7400399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // when the debugger detaches. Must be <= suspend_count_. 741b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers int debug_suspend_count_ GUARDED_BY(Locks::thread_suspend_count_lock_); 7420399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 743475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes // JDWP invoke-during-breakpoint support. 744475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes DebugInvokeReq* debug_invoke_req_; 745475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes 746306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers // Shadow frame that is used temporarily during the deoptimization of a method. 747306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers ShadowFrame* deoptimization_shadow_frame_; 748306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers JValue deoptimization_return_value_; 749306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers 750725a957985171d712d5c048cc3d00ff14968784bjeffhao // Additional stack used by method instrumentation to store method and return pc values. 751306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers // Stored as a pointer since std::deque is not PACKED. 75262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers std::deque<instrumentation::InstrumentationStackFrame>* instrumentation_stack_; 753e343b76af81a005ef64f5e75a555389fd9147dabjeffhao 754899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes // A cached copy of the java.lang.Thread's name. 755899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes std::string* name_; 756899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes 75752673ffae0025d86f4023735581f19ebcc477487Ian Rogers // Is the thread a daemon? 7585d96a7168dd3e2a4acf1a947ef12efa8f82b95c0Elliott Hughes const bool32_t daemon_; 75952673ffae0025d86f4023735581f19ebcc477487Ian Rogers 7600d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes // A cached pthread_t for the pthread underlying this Thread*. 7610d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes pthread_t pthread_self_; 7620d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes 76300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Support for Mutex lock hierarchy bug detection. 7640f827169742aad6209d830db773a101849c32a83Elliott Hughes BaseMutex* held_mutexes_[kLockLevelCount]; 765ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes 7660399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // A positive value implies we're in a region where thread suspension isn't expected. 7670399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers uint32_t no_thread_suspension_; 76852673ffae0025d86f4023735581f19ebcc477487Ian Rogers 76952673ffae0025d86f4023735581f19ebcc477487Ian Rogers // Cause for last suspension. 77052673ffae0025d86f4023735581f19ebcc477487Ian Rogers const char* last_no_thread_suspension_cause_; 7715d96a7168dd3e2a4acf1a947ef12efa8f82b95c0Elliott Hughes 772858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier // Pending checkpoint functions. 7730e4627e593bc39f8e3d89c31f8977d55054c07ccMathieu Chartier Closure* checkpoint_function_; 774858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier 775a32a6fd4a781262dff4fec102da053d16b7ef6c0Ian Rogers public: 776a32a6fd4a781262dff4fec102da053d16b7ef6c0Ian Rogers // Runtime support function pointers 7776a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes // TODO: move this near the top, since changing its offset requires all oats to be recompiled! 77857b86d47b66322693a070185fadfb43cb9c12eabIan Rogers EntryPoints entrypoints_; 779a32a6fd4a781262dff4fec102da053d16b7ef6c0Ian Rogers 780a32a6fd4a781262dff4fec102da053d16b7ef6c0Ian Rogers private: 7816a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes // How many times has our pthread key's destructor been called? 7826a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes uint32_t thread_exit_check_count_; 7836a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes 78422f454c7d349c439c774c5d79b32514b190fd531Ian Rogers friend class ScopedThreadStateChange; 78522f454c7d349c439c774c5d79b32514b190fd531Ian Rogers 7860e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro DISALLOW_COPY_AND_ASSIGN(Thread); 7870e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro}; 788bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 789330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughesstd::ostream& operator<<(std::ostream& os, const Thread& thread); 79034e069606d6f1698cd3c33b39e72b79ae27e1c7bElliott Hughesstd::ostream& operator<<(std::ostream& os, const ThreadState& state); 7910e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 7920e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro} // namespace art 7930e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 7940e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro#endif // ART_SRC_THREAD_H_ 795