thread.h revision 0f827169742aad6209d830db773a101849c32a83
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" 39bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers#include "UniquePtr.h" 40b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 410e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapironamespace art { 420e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 432dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersnamespace mirror { 4481d425b0b232962441616f8b14f73620bffef5e5Ian Rogersclass AbstractMethod; 4569f5bc6759f256a146eefd8a7141d39fcc3b0421Elliott Hughesclass Array; 4637f7a40f6789bb287f287a9af00777af9d6428eeElliott Hughesclass Class; 47edcc09c737b00462881f147602656739d029571eElliott Hughesclass ClassLoader; 482dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersclass Object; 492dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogerstemplate<class T> class ObjectArray; 502dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogerstemplate<class T> class PrimitiveArray; 512dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogerstypedef PrimitiveArray<int32_t> IntArray; 522dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersclass StackTraceElement; 532dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersclass StaticStorageBase; 542dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersclass Throwable; 552dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers} // namespace mirror 562dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersclass BaseMutex; 572dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersclass ClassLinker; 587a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogersclass Closure; 59bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogersclass Context; 601b09b094a85e03f6ef5f687f58bb91c433273ba1Ian Rogersstruct DebugInvokeReq; 6181d425b0b232962441616f8b14f73620bffef5e5Ian Rogersclass DexFile; 62120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogersstruct JavaVMExt; 6381d425b0b232962441616f8b14f73620bffef5e5Ian Rogersstruct JNIEnvExt; 648daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughesclass Monitor; 65b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiroclass Runtime; 6600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersclass ScopedObjectAccess; 6700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersclass ScopedObjectAccessUnchecked; 68f7ad17e108b9357d7c94c6218a8521140a667f3dLogan Chienclass ShadowFrame; 6940381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstromclass Thread; 7040381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstromclass ThreadList; 710e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 7234e069606d6f1698cd3c33b39e72b79ae27e1c7bElliott Hughes// Thread priorities. These must match the Thread.MIN_PRIORITY, 7334e069606d6f1698cd3c33b39e72b79ae27e1c7bElliott Hughes// Thread.NORM_PRIORITY, and Thread.MAX_PRIORITY constants. 7434e069606d6f1698cd3c33b39e72b79ae27e1c7bElliott Hughesenum ThreadPriority { 7534e069606d6f1698cd3c33b39e72b79ae27e1c7bElliott Hughes kMinThreadPriority = 1, 7634e069606d6f1698cd3c33b39e72b79ae27e1c7bElliott Hughes kNormThreadPriority = 5, 7734e069606d6f1698cd3c33b39e72b79ae27e1c7bElliott Hughes kMaxThreadPriority = 10, 7834e069606d6f1698cd3c33b39e72b79ae27e1c7bElliott Hughes}; 79fc1d9f581592d54cc14240b9909824af38656931Elliott Hughes 80474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogersenum ThreadFlag { 8150ffee20ced9c0c7ac68889c86be8844cf120cf2Ian Rogers kSuspendRequest = 1, // If set implies that suspend_count_ > 0 and the Thread should enter the 8250ffee20ced9c0c7ac68889c86be8844cf120cf2Ian Rogers // safepoint handler. 8350ffee20ced9c0c7ac68889c86be8844cf120cf2Ian Rogers kCheckpointRequest = 2, // Request that the thread do some checkpoint work and then continue. 841eab958cde39a7e2f0e5ce01730f4e2e75c72519jeffhao kEnterInterpreter = 4, // Instruct managed code it should enter the interpreter. 85474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers}; 86474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers 87df1ce91ba97bc79a0637e5504b39318fb1c9f577Ian Rogersclass PACKED(4) Thread { 8834e069606d6f1698cd3c33b39e72b79ae27e1c7bElliott Hughes public: 89932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // Space to throw a StackOverflowError in. 90d752132c73072084a3def9257cca4fcee76047b6jeffhao static const size_t kStackOverflowReservedBytes = 10 * 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 1040399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers static Thread* Current() __attribute__ ((pure)) { 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. 107d0e7e777c412071a911dd2c008b20b7d879fd392Carl Shapiro void* thread = pthread_getspecific(Thread::pthread_key_self_); 108d0e7e777c412071a911dd2c008b20b7d879fd392Carl Shapiro return reinterpret_cast<Thread*>(thread); 1090e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro } 1100e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 1112dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers static Thread* FromManagedThread(const ScopedObjectAccessUnchecked& ts, 1122dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* thread_peer) 113a77f0f68a59870ff027dad654fe31eb3fdaf3d5djeffhao EXCLUSIVE_LOCKS_REQUIRED(Locks::thread_list_lock_) 114b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) 115b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 11600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers static Thread* FromManagedThread(const ScopedObjectAccessUnchecked& ts, jobject thread) 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_); 1208daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes 12128fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes // Translates 172 to pAllocArrayFromCode and so on. 12228fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes static void DumpThreadOffset(std::ostream& os, uint32_t offset, size_t size_of_pointers); 12328fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes 12400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Dumps a one-line summary of thread state (used for operator<<). 12500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers void ShortDump(std::ostream& os) const; 12600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 12700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Dumps the detailed thread state and the thread stack (used for SIGQUIT). 12800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers void Dump(std::ostream& os) const 129b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) 130b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 131a09576416788b916095739e43a16917e7948f3a4Elliott Hughes 132abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes // Dumps the SIGQUIT per-thread header. 'thread' can be NULL for a non-attached thread, in which 133abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes // case we use 'tid' to identify the thread, and we'll include as much information as we can. 13400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers static void DumpState(std::ostream& os, const Thread* thread, pid_t tid) 135cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) 136cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 137abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes 138474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers ThreadState GetState() const { 13930e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers return static_cast<ThreadState>(state_and_flags_.as_struct.state); 1400cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers } 1410cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers 142474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers ThreadState SetState(ThreadState new_state); 1438d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes 14481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers int GetSuspendCount() const EXCLUSIVE_LOCKS_REQUIRED(Locks::thread_suspend_count_lock_) { 14500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return suspend_count_; 14652673ffae0025d86f4023735581f19ebcc477487Ian Rogers } 14752673ffae0025d86f4023735581f19ebcc477487Ian Rogers 14881d425b0b232962441616f8b14f73620bffef5e5Ian Rogers int GetDebugSuspendCount() const EXCLUSIVE_LOCKS_REQUIRED(Locks::thread_suspend_count_lock_) { 14900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return debug_suspend_count_; 15000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 15100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 152858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier bool IsSuspended() const { 153858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier union StateAndFlags state_and_flags = state_and_flags_; 154858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier return state_and_flags.as_struct.state != kRunnable && 155858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier (state_and_flags.as_struct.flags & kSuspendRequest) != 0; 15600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 15700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 15801ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers void ModifySuspendCount(Thread* self, int delta, bool for_debugger) 159b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers EXCLUSIVE_LOCKS_REQUIRED(Locks::thread_suspend_count_lock_); 16000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 1610e4627e593bc39f8e3d89c31f8977d55054c07ccMathieu Chartier bool RequestCheckpoint(Closure* function); 162858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier 16300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Called when thread detected that the thread_suspend_count_ was non-zero. Gives up share of 16400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // mutator_lock_ and waits until it is resumed and thread_suspend_count_ is zero. 1659da7f59c9059397182b9a97e898a42ec06d4d646Ian Rogers void FullSuspendCheck() 166b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) 167b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 16800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 16900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Transition from non-runnable to runnable state acquiring share on mutator_lock_. 17000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ThreadState TransitionFromSuspendedToRunnable() 171b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) 172693ff61274cd2c9b8eb7e68c370f84a911b8ca52Ian Rogers SHARED_LOCK_FUNCTION(Locks::mutator_lock_) 1731ffa32f0be7becec4907b26ead353e4b17e1219cIan Rogers ALWAYS_INLINE; 17400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 17500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Transition from runnable into a state where mutator privileges are denied. Releases share of 17600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // mutator lock. 17700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers void TransitionFromRunnableToSuspended(ThreadState new_state) 178b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) 179693ff61274cd2c9b8eb7e68c370f84a911b8ca52Ian Rogers UNLOCK_FUNCTION(Locks::mutator_lock_) 1801ffa32f0be7becec4907b26ead353e4b17e1219cIan Rogers ALWAYS_INLINE; 181038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes 18200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Wait for a debugger suspension on the thread associated with the given peer. Returns the 18300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // thread on success, else NULL. If the thread should be suspended then request_suspension should 18400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // be true on entry. If the suspension times out then *timeout is set to true. 185f327e07b37e349b1ec5eaad6dc294a9b7a081d20Elliott Hughes static Thread* SuspendForDebugger(jobject peer, bool request_suspension, bool* timed_out) 186b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers LOCKS_EXCLUDED(Locks::mutator_lock_, 187b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers Locks::thread_list_lock_, 188b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers Locks::thread_suspend_count_lock_); 1890cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers 1900399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Once called thread suspension will cause an assertion failure. 1910399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers#ifndef NDEBUG 19252673ffae0025d86f4023735581f19ebcc477487Ian Rogers const char* StartAssertNoThreadSuspension(const char* cause) { 19352673ffae0025d86f4023735581f19ebcc477487Ian Rogers CHECK(cause != NULL); 19452673ffae0025d86f4023735581f19ebcc477487Ian Rogers const char* previous_cause = last_no_thread_suspension_cause_; 1950399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers no_thread_suspension_++; 19652673ffae0025d86f4023735581f19ebcc477487Ian Rogers last_no_thread_suspension_cause_ = cause; 19752673ffae0025d86f4023735581f19ebcc477487Ian Rogers return previous_cause; 1980399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 19952673ffae0025d86f4023735581f19ebcc477487Ian Rogers#else 20052673ffae0025d86f4023735581f19ebcc477487Ian Rogers const char* StartAssertNoThreadSuspension(const char* cause) { 20152673ffae0025d86f4023735581f19ebcc477487Ian Rogers CHECK(cause != NULL); 20252673ffae0025d86f4023735581f19ebcc477487Ian Rogers return NULL; 20352673ffae0025d86f4023735581f19ebcc477487Ian Rogers } 20452673ffae0025d86f4023735581f19ebcc477487Ian Rogers#endif 20552673ffae0025d86f4023735581f19ebcc477487Ian Rogers 2060399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // End region where no thread suspension is expected. 2070399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers#ifndef NDEBUG 20852673ffae0025d86f4023735581f19ebcc477487Ian Rogers void EndAssertNoThreadSuspension(const char* old_cause) { 20952673ffae0025d86f4023735581f19ebcc477487Ian Rogers CHECK(old_cause != NULL || no_thread_suspension_ == 1); 21052673ffae0025d86f4023735581f19ebcc477487Ian Rogers CHECK_GT(no_thread_suspension_, 0U); 2110399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers no_thread_suspension_--; 21252673ffae0025d86f4023735581f19ebcc477487Ian Rogers last_no_thread_suspension_cause_ = old_cause; 21352673ffae0025d86f4023735581f19ebcc477487Ian Rogers } 21452673ffae0025d86f4023735581f19ebcc477487Ian Rogers#else 21552673ffae0025d86f4023735581f19ebcc477487Ian Rogers void EndAssertNoThreadSuspension(const char*) { 2160399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 21752673ffae0025d86f4023735581f19ebcc477487Ian Rogers#endif 2180399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 21900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 22000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers void AssertThreadSuspensionIsAllowable(bool check_locks = true) const; 2210399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 22200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers bool IsDaemon() const { 22300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return daemon_; 22400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 22500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 2262dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers bool HoldsLock(mirror::Object*); 2275f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes 2288daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes /* 2298daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes * Changes the priority of this thread to match that of the java.lang.Thread object. 2308daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes * 2318daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes * We map a priority value from 1-10 to Linux "nice" values, where lower 2328daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes * numbers indicate higher priority. 2338daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes */ 2348daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes void SetNativePriority(int newPriority); 2358daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes 2368daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes /* 2378daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes * Returns the thread priority for the current thread by querying the system. 2388daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes * This is useful when attaching a thread through JNI. 2398daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes * 2408daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes * Returns a value from 1 to 10 (compatible with java.lang.Thread values). 2418daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes */ 2428daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes static int GetNativePriority(); 2438daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes 244dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes uint32_t GetThinLockId() const { 245dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes return thin_lock_id_; 246b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro } 247b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 248d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes pid_t GetTid() const { 249d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes return tid_; 250d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 251e27955ca3ca960928d4dbd6cb79711fce06950b3Elliott Hughes 252ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes // Returns the java.lang.Thread's name, or NULL if this Thread* doesn't have a peer. 2532dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::String* GetThreadName(const ScopedObjectAccessUnchecked& ts) const 254b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 255899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes 256ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes // Sets 'name' to the java.lang.Thread's name. This requires no transition to managed code, 257ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes // allocation, or locking. 258ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes void GetThreadName(std::string& name) const; 259ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes 260899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes // Sets the thread's name. 261b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers void SetThreadName(const char* name) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 262fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes 2632dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* GetPeer() const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 264cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers CHECK(jpeer_ == NULL); 265cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers return opeer_; 2668daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes } 2678daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes 26800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers bool HasPeer() const { 26980537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes return jpeer_ != NULL || opeer_ != NULL; 27000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 27100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 2729d5ccec86d60c9ddd811836b9a2bc28d0b3d11feElliott Hughes RuntimeStats* GetStats() { 2739d5ccec86d60c9ddd811836b9a2bc28d0b3d11feElliott Hughes return &stats_; 2749d5ccec86d60c9ddd811836b9a2bc28d0b3d11feElliott Hughes } 2759d5ccec86d60c9ddd811836b9a2bc28d0b3d11feElliott Hughes 2767dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes bool IsStillStarting() const; 2777dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes 2780e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro bool IsExceptionPending() const { 2791eab958cde39a7e2f0e5ce01730f4e2e75c72519jeffhao return exception_ != NULL; 2800e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro } 2810e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 2822dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Throwable* GetException() const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 2830e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro return exception_; 2840e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro } 2850e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 28600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers void AssertNoPendingException() const; 28700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 2882dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers void SetException(mirror::Throwable* new_exception) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 2890cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers CHECK(new_exception != NULL); 290474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers // TODO: DCHECK(!IsExceptionPending()); 291474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers exception_ = new_exception; 2920cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers } 2930cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers 2940cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers void ClearException() { 2950cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers exception_ = NULL; 296a09576416788b916095739e43a16917e7948f3a4Elliott Hughes } 297a09576416788b916095739e43a16917e7948f3a4Elliott Hughes 2982dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers void DeliverException(mirror::Throwable* exception) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 29994d6df471a406a03bb1afba8ca3ae9c0fbf366b5jeffhao if (exception == NULL) { 30094d6df471a406a03bb1afba8ca3ae9c0fbf366b5jeffhao ThrowNewException("Ljava/lang/NullPointerException;", "throw with null exception"); 30194d6df471a406a03bb1afba8ca3ae9c0fbf366b5jeffhao } else { 30294d6df471a406a03bb1afba8ca3ae9c0fbf366b5jeffhao SetException(exception); 30394d6df471a406a03bb1afba8ca3ae9c0fbf366b5jeffhao } 30494d6df471a406a03bb1afba8ca3ae9c0fbf366b5jeffhao } 30594d6df471a406a03bb1afba8ca3ae9c0fbf366b5jeffhao 306bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers // Find catch block and perform long jump to appropriate exception handle 30794d6df471a406a03bb1afba8ca3ae9c0fbf366b5jeffhao void QuickDeliverException() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 308bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 309bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers Context* GetLongJumpContext(); 3100399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers void ReleaseLongJumpContext(Context* context) { 3110399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers DCHECK(long_jump_context_ == NULL); 3120399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers long_jump_context_ = context; 3131a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 3141a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 3152dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod* GetCurrentMethod(uint32_t* dex_pc = NULL, size_t* frame_id = NULL) const 316b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 3170399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 318bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers void SetTopOfStack(void* stack, uintptr_t pc) { 3192dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod** top_method = reinterpret_cast<mirror::AbstractMethod**>(stack); 3200399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers managed_stack_.SetTopQuickFrame(top_method); 3210399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers managed_stack_.SetTopQuickFramePc(pc); 3220e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro } 3230e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 32411ffc2d02b7d979f26a8a04013fce3eb4f9a2816Jeff Hao void SetTopOfShadowStack(ShadowFrame* top) { 32511ffc2d02b7d979f26a8a04013fce3eb4f9a2816Jeff Hao managed_stack_.SetTopShadowFrame(top); 32611ffc2d02b7d979f26a8a04013fce3eb4f9a2816Jeff Hao } 32711ffc2d02b7d979f26a8a04013fce3eb4f9a2816Jeff Hao 3280399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers bool HasManagedStack() const { 3290399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return managed_stack_.GetTopQuickFrame() != NULL || managed_stack_.GetTopShadowFrame() != NULL; 330bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers } 331bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 332a4f94740f9d66b21f4bcd3a225c434aa29cfa323Elliott Hughes // If 'msg' is NULL, no detail message is set. 33300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers void ThrowNewException(const char* exception_class_descriptor, const char* msg) 334b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 3355cb5ad27944efb08d4556b3c0d362302e37e832bElliott Hughes 336a4f94740f9d66b21f4bcd3a225c434aa29cfa323Elliott Hughes // If 'msg' is NULL, no detail message is set. An exception must be pending, and will be 337a4f94740f9d66b21f4bcd3a225c434aa29cfa323Elliott Hughes // used as the new exception's cause. 33800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers void ThrowNewWrappedException(const char* exception_class_descriptor, const char* msg) 339b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 340a4f94740f9d66b21f4bcd3a225c434aa29cfa323Elliott Hughes 3415cb5ad27944efb08d4556b3c0d362302e37e832bElliott Hughes void ThrowNewExceptionF(const char* exception_class_descriptor, const char* fmt, ...) 34200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers __attribute__((format(printf, 3, 4))) 343b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 344a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes 34500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers void ThrowNewExceptionV(const char* exception_class_descriptor, const char* fmt, va_list ap) 346b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 3474a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes 3482ced6a534157d5d963693346904389c19775d2daElliott Hughes // OutOfMemoryError is special, because we need to pre-allocate an instance. 3498a8b9cbe158ee13477f2381f164c519762a06fefElliott Hughes // Only the GC should call this. 350120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers void ThrowOutOfMemoryError(const char* msg) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 35179082e367845bbd68ec44ef2ddd1be8ef0e1550fElliott Hughes 3520399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers //QuickFrameIterator FindExceptionHandler(void* throw_pc, void** handler_pc); 3531a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 3542dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers void* FindExceptionHandlerInMethod(const mirror::AbstractMethod* method, 3551a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao void* throw_pc, 3561a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao const DexFile& dex_file, 3571a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao ClassLinker* class_linker); 358c143c55718342519db5398e41dda31422cf16c79buzbee 359be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes static void Startup(); 360038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes static void FinishStartup(); 361c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes static void Shutdown(); 362b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 363b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers // JNI methods 36469f5bc6759f256a146eefd8a7141d39fcc3b0421Elliott Hughes JNIEnvExt* GetJniEnv() const { 365b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers return jni_env_; 366b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 367b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 368408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Convert a jobject into a Object* 3692dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* DecodeJObject(jobject obj) const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 370b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 3718daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes // Implements java.lang.Thread.interrupted. 37281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers bool Interrupted(); 3738daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes // Implements java.lang.Thread.isInterrupted. 37481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers bool IsInterrupted(); 37581d425b0b232962441616f8b14f73620bffef5e5Ian Rogers void Interrupt(); 37681d425b0b232962441616f8b14f73620bffef5e5Ian Rogers void Notify(); 3775f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes 3782dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ClassLoader* GetClassLoaderOverride() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 379c143c55718342519db5398e41dda31422cf16c79buzbee return class_loader_override_; 380c143c55718342519db5398e41dda31422cf16c79buzbee } 381c143c55718342519db5398e41dda31422cf16c79buzbee 3822dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers void SetClassLoaderOverride(mirror::ClassLoader* class_loader_override) { 383c143c55718342519db5398e41dda31422cf16c79buzbee class_loader_override_ = class_loader_override; 384c143c55718342519db5398e41dda31422cf16c79buzbee } 385c143c55718342519db5398e41dda31422cf16c79buzbee 386aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Create the internal representation of a stack trace, that is more time 387aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // and space efficient to compute than the StackTraceElement[] 38864b6d145fa53b8dfb07a8fc2426af13f155d5a4dIan Rogers jobject CreateInternalStackTrace(const ScopedObjectAccessUnchecked& soa) const 389b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 39001158d7a57c8321370667a6045220237d16e0da8Elliott Hughes 39101158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Convert an internal stack trace representation (returned by CreateInternalStackTrace) to a 39201158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // StackTraceElement[]. If output_array is NULL, a new array is created, otherwise as many 39301158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // frames as will fit are written into the given array. If stack_depth is non-NULL, it's updated 39401158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // with the number of valid frames in the returned array. 39501158d7a57c8321370667a6045220237d16e0da8Elliott Hughes static jobjectArray InternalStackTraceToStackTraceElementArray(JNIEnv* env, jobject internal, 39601158d7a57c8321370667a6045220237d16e0da8Elliott Hughes jobjectArray output_array = NULL, int* stack_depth = NULL); 39755df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao 3982dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers void VisitRoots(RootVisitor* visitor, void* arg) 399b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 4006f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 4012dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers void VerifyRoots(VerifyRootVisitor* visitor, void* arg) 4026f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 403410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes 404250455229aa0cc07bbd18174efe510bd52631a99jeffhao#if VERIFY_OBJECT_ENABLED 405b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers void VerifyStack() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 406250455229aa0cc07bbd18174efe510bd52631a99jeffhao#else 407b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers void VerifyStack() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_){} 408250455229aa0cc07bbd18174efe510bd52631a99jeffhao#endif 409250455229aa0cc07bbd18174efe510bd52631a99jeffhao 410be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes // 411be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes // Offsets of various members of native Thread class, used by compiled code. 412be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes // 413be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 414be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes static ThreadOffset SelfOffset() { 415be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes return ThreadOffset(OFFSETOF_MEMBER(Thread, self_)); 416be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 417be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 418be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes static ThreadOffset ExceptionOffset() { 419be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes return ThreadOffset(OFFSETOF_MEMBER(Thread, exception_)); 420be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 421be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 42207ec8e17c978e3bda0202693e6432b56349a5867Ian Rogers static ThreadOffset PeerOffset() { 42307ec8e17c978e3bda0202693e6432b56349a5867Ian Rogers return ThreadOffset(OFFSETOF_MEMBER(Thread, opeer_)); 42407ec8e17c978e3bda0202693e6432b56349a5867Ian Rogers } 42507ec8e17c978e3bda0202693e6432b56349a5867Ian Rogers 42654e7df1896a4066cbb9fe6f72249829f0b8c49c6Elliott Hughes static ThreadOffset ThinLockIdOffset() { 427be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes return ThreadOffset(OFFSETOF_MEMBER(Thread, thin_lock_id_)); 428be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 429be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 430be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes static ThreadOffset CardTableOffset() { 431be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes return ThreadOffset(OFFSETOF_MEMBER(Thread, card_table_)); 432be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 433be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 434474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers static ThreadOffset ThreadFlagsOffset() { 435474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers return ThreadOffset(OFFSETOF_MEMBER(Thread, state_and_flags_)); 436be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 437be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 438932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // Size of stack less any space reserved for stack overflow 439d752132c73072084a3def9257cca4fcee76047b6jeffhao size_t GetStackSize() const { 44030fab40ee5a07af6b8c3b6b0e9438071695a57f4Ian Rogers return stack_size_ - (stack_end_ - stack_begin_); 441932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers } 442932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers 443d752132c73072084a3def9257cca4fcee76047b6jeffhao byte* GetStackEnd() const { 444d752132c73072084a3def9257cca4fcee76047b6jeffhao return stack_end_; 445d752132c73072084a3def9257cca4fcee76047b6jeffhao } 446d752132c73072084a3def9257cca4fcee76047b6jeffhao 447932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // Set the stack end to that to be used during a stack overflow 448b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers void SetStackEndForStackOverflow() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 449932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers 450932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // Set the stack end to that to be used during regular execution 451932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers void ResetDefaultStackEnd() { 452932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // Our stacks grow down, so we want stack_end_ to be near there, but reserving enough room 453932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // to throw a StackOverflowError. 45430fab40ee5a07af6b8c3b6b0e9438071695a57f4Ian Rogers stack_end_ = stack_begin_ + kStackOverflowReservedBytes; 455932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers } 456932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers 457120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers bool IsHandlingStackOverflow() const { 458120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers return stack_end_ == stack_begin_; 459120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 460120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 461449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes static ThreadOffset StackEndOffset() { 462449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes return ThreadOffset(OFFSETOF_MEMBER(Thread, stack_end_)); 463be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 464be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 465be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes static ThreadOffset JniEnvOffset() { 466be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes return ThreadOffset(OFFSETOF_MEMBER(Thread, jni_env_)); 467be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 468be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 469be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes static ThreadOffset TopOfManagedStackOffset() { 4700399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return ThreadOffset(OFFSETOF_MEMBER(Thread, managed_stack_) + 4710399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ManagedStack::TopQuickFrameOffset()); 472be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 473be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 474bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers static ThreadOffset TopOfManagedStackPcOffset() { 4750399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return ThreadOffset(OFFSETOF_MEMBER(Thread, managed_stack_) + 4760399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ManagedStack::TopQuickFramePcOffset()); 4770399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 4780399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 4790399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers const ManagedStack* GetManagedStack() const { 4800399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return &managed_stack_; 4810399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 4820399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 4830399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Linked list recording fragments of managed stack. 4840399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers void PushManagedStackFragment(ManagedStack* fragment) { 4850399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers managed_stack_.PushManagedStackFragment(fragment); 4860399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 4870399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers void PopManagedStackFragment(const ManagedStack& fragment) { 4880399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers managed_stack_.PopManagedStackFragment(fragment); 489bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers } 490bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 4910399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ShadowFrame* PushShadowFrame(ShadowFrame* new_top_frame) { 4920399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return managed_stack_.PushShadowFrame(new_top_frame); 493de479be99328d2113bf483e082c9ecf235a34d69TDYa } 494de479be99328d2113bf483e082c9ecf235a34d69TDYa 495de479be99328d2113bf483e082c9ecf235a34d69TDYa ShadowFrame* PopShadowFrame() { 4960399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return managed_stack_.PopShadowFrame(); 497de479be99328d2113bf483e082c9ecf235a34d69TDYa } 498f7ad17e108b9357d7c94c6218a8521140a667f3dLogan Chien 499d668a06b5dcc3b0f7f788da4d756cd4ee6f1d0faTDYa static ThreadOffset TopShadowFrameOffset() { 5000399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return ThreadOffset(OFFSETOF_MEMBER(Thread, managed_stack_) + 5010399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ManagedStack::TopShadowFrameOffset()); 502d668a06b5dcc3b0f7f788da4d756cd4ee6f1d0faTDYa } 503d668a06b5dcc3b0f7f788da4d756cd4ee6f1d0faTDYa 504ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa // Number of references allocated in JNI ShadowFrames on this thread 505ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa size_t NumJniShadowFrameReferences() const { 506ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa return managed_stack_.NumJniShadowFrameReferences(); 5070399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 5080399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 5090399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Number of references in SIRTs on this thread 5100399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers size_t NumSirtReferences(); 5110399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 512ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa // Number of references allocated in SIRTs & JNI shadow frames on this thread 5130399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers size_t NumStackReferences() { 514ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa return NumSirtReferences() + NumJniShadowFrameReferences(); 5150399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers }; 5160399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 5170399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Is the given obj in this thread's stack indirect reference table? 518cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers bool SirtContains(jobject obj) const; 5190399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 5202dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers void SirtVisitRoots(RootVisitor* visitor, void* arg); 5210399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 5221f5393447b9f45be7918042d9ee7b521376de866Ian Rogers void PushSirt(StackIndirectReferenceTable* sirt) { 5231f5393447b9f45be7918042d9ee7b521376de866Ian Rogers sirt->SetLink(top_sirt_); 5241f5393447b9f45be7918042d9ee7b521376de866Ian Rogers top_sirt_ = sirt; 5251f5393447b9f45be7918042d9ee7b521376de866Ian Rogers } 5261f5393447b9f45be7918042d9ee7b521376de866Ian Rogers 5271f5393447b9f45be7918042d9ee7b521376de866Ian Rogers StackIndirectReferenceTable* PopSirt() { 5281f5393447b9f45be7918042d9ee7b521376de866Ian Rogers StackIndirectReferenceTable* sirt = top_sirt_; 5291f5393447b9f45be7918042d9ee7b521376de866Ian Rogers DCHECK(sirt != NULL); 5301f5393447b9f45be7918042d9ee7b521376de866Ian Rogers top_sirt_ = top_sirt_->GetLink(); 5311f5393447b9f45be7918042d9ee7b521376de866Ian Rogers return sirt; 5321f5393447b9f45be7918042d9ee7b521376de866Ian Rogers } 53340381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom 534be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes static ThreadOffset TopSirtOffset() { 535be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes return ThreadOffset(OFFSETOF_MEMBER(Thread, top_sirt_)); 536be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 537be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 538475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes DebugInvokeReq* GetInvokeReq() { 539475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes return debug_invoke_req_; 540475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes } 541475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes 542c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes void SetDebuggerUpdatesEnabled(bool enabled); 543c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes 544306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers void SetDeoptimizationShadowFrame(ShadowFrame* sf, const JValue& ret_val); 545306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers 546306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers ShadowFrame* GetAndClearDeoptimizationShadowFrame(JValue* ret_val); 547306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers 548306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers const std::deque<InstrumentationStackFrame>* GetInstrumentationStack() const { 549725a957985171d712d5c048cc3d00ff14968784bjeffhao return instrumentation_stack_; 550e343b76af81a005ef64f5e75a555389fd9147dabjeffhao } 551e343b76af81a005ef64f5e75a555389fd9147dabjeffhao 552725a957985171d712d5c048cc3d00ff14968784bjeffhao bool IsInstrumentationStackEmpty() const { 553725a957985171d712d5c048cc3d00ff14968784bjeffhao return instrumentation_stack_->empty(); 554a9ef3fd82bebc6370fc3ddbb094988feb6c83022jeffhao } 555a9ef3fd82bebc6370fc3ddbb094988feb6c83022jeffhao 556725a957985171d712d5c048cc3d00ff14968784bjeffhao void PushInstrumentationStackFrame(const InstrumentationStackFrame& frame) { 557306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers instrumentation_stack_->push_front(frame); 558306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers } 559306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers 560306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers void PushBackInstrumentationStackFrame(const InstrumentationStackFrame& frame) { 561725a957985171d712d5c048cc3d00ff14968784bjeffhao instrumentation_stack_->push_back(frame); 562e343b76af81a005ef64f5e75a555389fd9147dabjeffhao } 563e343b76af81a005ef64f5e75a555389fd9147dabjeffhao 564725a957985171d712d5c048cc3d00ff14968784bjeffhao InstrumentationStackFrame PopInstrumentationStackFrame() { 565306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers InstrumentationStackFrame frame = instrumentation_stack_->front(); 566306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers instrumentation_stack_->pop_front(); 567e343b76af81a005ef64f5e75a555389fd9147dabjeffhao return frame; 568e343b76af81a005ef64f5e75a555389fd9147dabjeffhao } 569e343b76af81a005ef64f5e75a555389fd9147dabjeffhao 57081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers BaseMutex* GetHeldMutex(LockLevel level) const { 57100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return held_mutexes_[level]; 57200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 57300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 57481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers void SetHeldMutex(LockLevel level, BaseMutex* mutex) { 57500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers held_mutexes_[level] = mutex; 57600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 577ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes 578858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier void RunCheckpointFunction() { 579858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier CHECK(checkpoint_function_ != NULL); 580858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier checkpoint_function_->Run(this); 581858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier } 582858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier 583858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier bool ReadFlag(ThreadFlag flag) const { 584858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier return (state_and_flags_.as_struct.flags & flag) != 0; 585858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier } 586858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier 587858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier void AtomicSetFlag(ThreadFlag flag); 588858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier 589858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier void AtomicClearFlag(ThreadFlag flag); 590858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier 5910e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro private: 5925d96a7168dd3e2a4acf1a947ef12efa8f82b95c0Elliott Hughes // We have no control over the size of 'bool', but want our boolean fields 5935d96a7168dd3e2a4acf1a947ef12efa8f82b95c0Elliott Hughes // to be 4-byte quantities. 5945d96a7168dd3e2a4acf1a947ef12efa8f82b95c0Elliott Hughes typedef uint32_t bool32_t; 5955d96a7168dd3e2a4acf1a947ef12efa8f82b95c0Elliott Hughes 59652673ffae0025d86f4023735581f19ebcc477487Ian Rogers explicit Thread(bool daemon); 597b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers ~Thread() LOCKS_EXCLUDED(Locks::mutator_lock_, 598b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers Locks::thread_suspend_count_lock_); 599c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes void Destroy(); 600c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes friend class ThreadList; // For ~Thread and Destroy. 6010e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 602365c10235438607541fa2259a5fec48061b90bd8Ian Rogers void CreatePeer(const char* name, bool as_daemon, jobject thread_group); 6035fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes friend class Runtime; // For CreatePeer. 6045fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 605474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers // Avoid use, callers should use SetState. Used only by SignalCatcher::HandleSigQuit and ~Thread. 606474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers ThreadState SetStateUnsafe(ThreadState new_state) { 607474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers ThreadState old_state = GetState(); 60830e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers state_and_flags_.as_struct.state = new_state; 609c747cffa950b8398cb8844d47e2253214c855750Ian Rogers return old_state; 610c747cffa950b8398cb8844d47e2253214c855750Ian Rogers } 611474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers friend class SignalCatcher; // For SetStateUnsafe. 612c747cffa950b8398cb8844d47e2253214c855750Ian Rogers 613cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers void DumpState(std::ostream& os) const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 61400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers void DumpStack(std::ostream& os) const 615b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) 616b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 617d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 618accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Out-of-line conveniences for debugging in gdb. 619498508c1187dc07d3eae5476784cde20f5224d93Elliott Hughes static Thread* CurrentFromGdb(); // Like Thread::Current. 62000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Like Thread::Dump(std::cerr). 621b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers void DumpFromGdb() const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 622accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 62393e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes static void* CreateCallback(void* arg); 62493e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 625cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers void HandleUncaughtExceptions(ScopedObjectAccess& soa) 626cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 627cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers void RemoveFromThreadGroup(ScopedObjectAccess& soa) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 628accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 629120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers void Init(ThreadList*, JavaVMExt*) EXCLUSIVE_LOCKS_REQUIRED(Locks::runtime_shutdown_lock_); 6305d76c435082332ef79a22962386fa92a0870e378Ian Rogers void InitCardTable(); 631b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers void InitCpu(); 6323ea4ec5629613013ad9b0d7a69abdb94491ac46fbuzbee void InitFunctionPointers(); 633caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom void InitTid(); 634caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom void InitPthreadKeySelf(); 635be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes void InitStackHwm(); 636be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 637c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers void NotifyLocked(Thread* self) EXCLUSIVE_LOCKS_REQUIRED(wait_mutex_); 6385f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes 639be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes static void ThreadExitCallback(void* arg); 640b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 6410399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // TLS key used to retrieve the Thread*. 6420399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers static pthread_key_t pthread_key_self_; 6430399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 64400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Used to notify threads that they should attempt to resume, they will suspend again if 64500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // their suspend count is > 0. 646c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers static ConditionVariable* resume_cond_ GUARDED_BY(Locks::thread_suspend_count_lock_); 64700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 6480399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // --- Frequently accessed fields first for short offsets --- 6490399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 650474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers // 32 bits of atomically changed state and flags. Keeping as 32 bits allows and atomic CAS to 651474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers // change from being Suspended to Runnable without a suspend request occurring. 65230e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers union StateAndFlags { 653df1ce91ba97bc79a0637e5504b39318fb1c9f577Ian Rogers struct PACKED(4) { 65430e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers // Bitfield of flag values. Must be changed atomically so that flag values aren't lost. See 65530e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers // ThreadFlags for bit field meanings. 65630e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers volatile uint16_t flags; 65730e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers // Holds the ThreadState. May be changed non-atomically between Suspended (ie not Runnable) 65830e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers // transitions. Changing to Runnable requires that the suspend_request be part of the atomic 65930e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers // operation. If a thread is suspended and a suspend_request is present, a thread may not 66030e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers // change to Runnable as a GC or other operation is in progress. 66101ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers volatile uint16_t state; 66230e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers } as_struct; 66301ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers volatile int32_t as_int; 664474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers }; 66530e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers union StateAndFlags state_and_flags_; 66630e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers COMPILE_ASSERT(sizeof(union StateAndFlags) == sizeof(int32_t), 667474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers sizeof_state_and_flags_and_int32_are_different); 668474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers 6690399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // A non-zero value is used to tell the current thread to enter a safe point 6700399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // at the next poll. 671b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers int suspend_count_ GUARDED_BY(Locks::thread_suspend_count_lock_); 6720399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 6730399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // The biased card table, see CardTable for details 6740399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers byte* card_table_; 6750399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 6760399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // The pending exception or NULL. 6772dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Throwable* exception_; 6780399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 6790399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // The end of this thread's stack. This is the lowest safely-addressable address on the stack. 6800399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // We leave extra space so there's room for the code that throws StackOverflowError. 6810399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers byte* stack_end_; 6820399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 6830399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // The top of the managed stack often manipulated directly by compiler generated code. 6840399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ManagedStack managed_stack_; 6850399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 6860399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Every thread may have an associated JNI environment 6870399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers JNIEnvExt* jni_env_; 6880399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 6890399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Initialized to "this". On certain architectures (such as x86) reading 6900399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // off of Thread::Current is easy but getting the address of Thread::Current 6910399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // is hard. This field can be read off of Thread::Current to give the address. 6920399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers Thread* self_; 6930399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 694cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers // Our managed peer (an instance of java.lang.Thread). The jobject version is used during thread 695cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers // start up, until the thread is registered and the local opeer_ is used. 6962dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* opeer_; 697cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers jobject jpeer_; 6980399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 6990399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // The "lowest addressable byte" of the stack 7000399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers byte* stack_begin_; 7010399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 7020399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Size of the stack 7030399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers size_t stack_size_; 7040399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 705dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes // Thin lock thread id. This is a small integer used by the thin lock implementation. 706dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes // This is not to be confused with the native thread's tid, nor is it the value returned 707dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes // by java.lang.Thread.getId --- this is a distinct value, used only for locking. One 708dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes // important difference between this id and the ids visible to managed code is that these 709dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes // ones get reused (to ensure that they fit in the number of bits available). 710dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes uint32_t thin_lock_id_; 711b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 712d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes // System thread id. 713d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes pid_t tid_; 714d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 7158daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes // Guards the 'interrupted_' and 'wait_monitor_' members. 71600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers mutable Mutex* wait_mutex_ DEFAULT_MUTEX_ACQUIRED_AFTER; 71700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ConditionVariable* wait_cond_ GUARDED_BY(wait_mutex_); 71800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Pointer to the monitor lock we're currently waiting on (or NULL). 71900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Monitor* wait_monitor_ GUARDED_BY(wait_mutex_); 72000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Thread "interrupted" status; stays raised until queried or thrown. 72100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers bool32_t interrupted_ GUARDED_BY(wait_mutex_); 7225f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes // The next thread in the wait set this thread is part of. 7235f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes Thread* wait_next_; 7248e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes // If we're blocked in MonitorEnter, this is the object we're trying to lock. 7252dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* monitor_enter_object_; 7265f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes 7275f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes friend class Monitor; 728f327e07b37e349b1ec5eaad6dc294a9b7a081d20Elliott Hughes friend class MonitorInfo; 729dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes 730408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Top of linked list of stack indirect reference tables or NULL for none 731408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers StackIndirectReferenceTable* top_sirt_; 732b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 73369759eaa6fd4386f1e6d8748052ad221087b3476Carl Shapiro Runtime* runtime_; 73469759eaa6fd4386f1e6d8748052ad221087b3476Carl Shapiro 7350399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers RuntimeStats stats_; 73645a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers 737edcc09c737b00462881f147602656739d029571eElliott Hughes // Needed to get the right ClassLoader in JNI_OnLoad, but also 738edcc09c737b00462881f147602656739d029571eElliott Hughes // useful for testing. 7392dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ClassLoader* class_loader_override_; 740c143c55718342519db5398e41dda31422cf16c79buzbee 741bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers // Thread local, lazily allocated, long jump context. Used to deliver exceptions. 74285d1545e985ac689db4bad7849880e843707c862Elliott Hughes Context* long_jump_context_; 743bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 744418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes // A boolean telling us whether we're recursively throwing OOME. 7455d96a7168dd3e2a4acf1a947ef12efa8f82b95c0Elliott Hughes bool32_t throwing_OutOfMemoryError_; 746726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes 7470399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // How much of 'suspend_count_' is by request of the debugger, used to set things right 7480399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // when the debugger detaches. Must be <= suspend_count_. 749b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers int debug_suspend_count_ GUARDED_BY(Locks::thread_suspend_count_lock_); 7500399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 751475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes // JDWP invoke-during-breakpoint support. 752475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes DebugInvokeReq* debug_invoke_req_; 753475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes 754306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers // Shadow frame that is used temporarily during the deoptimization of a method. 755306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers ShadowFrame* deoptimization_shadow_frame_; 756306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers JValue deoptimization_return_value_; 757306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers 758725a957985171d712d5c048cc3d00ff14968784bjeffhao // Additional stack used by method instrumentation to store method and return pc values. 759306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers // Stored as a pointer since std::deque is not PACKED. 760306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers std::deque<InstrumentationStackFrame>* instrumentation_stack_; 761e343b76af81a005ef64f5e75a555389fd9147dabjeffhao 762899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes // A cached copy of the java.lang.Thread's name. 763899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes std::string* name_; 764899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes 76552673ffae0025d86f4023735581f19ebcc477487Ian Rogers // Is the thread a daemon? 7665d96a7168dd3e2a4acf1a947ef12efa8f82b95c0Elliott Hughes const bool32_t daemon_; 76752673ffae0025d86f4023735581f19ebcc477487Ian Rogers 7680d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes // A cached pthread_t for the pthread underlying this Thread*. 7690d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes pthread_t pthread_self_; 7700d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes 77100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Support for Mutex lock hierarchy bug detection. 7720f827169742aad6209d830db773a101849c32a83Elliott Hughes BaseMutex* held_mutexes_[kLockLevelCount]; 773ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes 7740399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // A positive value implies we're in a region where thread suspension isn't expected. 7750399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers uint32_t no_thread_suspension_; 77652673ffae0025d86f4023735581f19ebcc477487Ian Rogers 77752673ffae0025d86f4023735581f19ebcc477487Ian Rogers // Cause for last suspension. 77852673ffae0025d86f4023735581f19ebcc477487Ian Rogers const char* last_no_thread_suspension_cause_; 7795d96a7168dd3e2a4acf1a947ef12efa8f82b95c0Elliott Hughes 780858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier // Pending checkpoint functions. 7810e4627e593bc39f8e3d89c31f8977d55054c07ccMathieu Chartier Closure* checkpoint_function_; 782858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier 783a32a6fd4a781262dff4fec102da053d16b7ef6c0Ian Rogers public: 784a32a6fd4a781262dff4fec102da053d16b7ef6c0Ian Rogers // Runtime support function pointers 7856a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes // TODO: move this near the top, since changing its offset requires all oats to be recompiled! 78657b86d47b66322693a070185fadfb43cb9c12eabIan Rogers EntryPoints entrypoints_; 787a32a6fd4a781262dff4fec102da053d16b7ef6c0Ian Rogers 788a32a6fd4a781262dff4fec102da053d16b7ef6c0Ian Rogers private: 7896a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes // How many times has our pthread key's destructor been called? 7906a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes uint32_t thread_exit_check_count_; 7916a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes 79222f454c7d349c439c774c5d79b32514b190fd531Ian Rogers friend class ScopedThreadStateChange; 79322f454c7d349c439c774c5d79b32514b190fd531Ian Rogers 7940e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro DISALLOW_COPY_AND_ASSIGN(Thread); 7950e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro}; 796bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 797330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughesstd::ostream& operator<<(std::ostream& os, const Thread& thread); 79834e069606d6f1698cd3c33b39e72b79ae27e1c7bElliott Hughesstd::ostream& operator<<(std::ostream& os, const ThreadState& state); 7990e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 8000e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro} // namespace art 8010e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 8020e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro#endif // ART_SRC_THREAD_H_ 803