Elliott Hughes | 8d768a9 | 2011-09-14 16:35:25 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 16 | |
Brian Carlstrom | fc0e321 | 2013-07-17 14:40:12 -0700 | [diff] [blame] | 17 | #ifndef ART_RUNTIME_THREAD_H_ |
| 18 | #define ART_RUNTIME_THREAD_H_ |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 19 | |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 20 | #include <pthread.h> |
Elliott Hughes | a095764 | 2011-09-02 14:27:33 -0700 | [diff] [blame] | 21 | |
Elliott Hughes | 02b48d1 | 2011-09-07 17:15:51 -0700 | [diff] [blame] | 22 | #include <bitset> |
Ian Rogers | 306057f | 2012-11-26 12:45:53 -0800 | [diff] [blame] | 23 | #include <deque> |
Elliott Hughes | a095764 | 2011-09-02 14:27:33 -0700 | [diff] [blame] | 24 | #include <iosfwd> |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 25 | #include <list> |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 26 | #include <string> |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 27 | |
Elliott Hughes | 7616005 | 2012-12-12 16:31:20 -0800 | [diff] [blame] | 28 | #include "base/macros.h" |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 29 | #include "entrypoints/interpreter/interpreter_entrypoints.h" |
| 30 | #include "entrypoints/jni/jni_entrypoints.h" |
Ian Rogers | 7655f29 | 2013-07-29 11:07:13 -0700 | [diff] [blame] | 31 | #include "entrypoints/portable/portable_entrypoints.h" |
| 32 | #include "entrypoints/quick/quick_entrypoints.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 33 | #include "globals.h" |
Ian Rogers | 306057f | 2012-11-26 12:45:53 -0800 | [diff] [blame] | 34 | #include "jvalue.h" |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 35 | #include "locks.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 36 | #include "offsets.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 37 | #include "root_visitor.h" |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 38 | #include "runtime_stats.h" |
Elliott Hughes | 68e7652 | 2011-10-05 13:22:16 -0700 | [diff] [blame] | 39 | #include "stack.h" |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 40 | #include "stack_indirect_reference_table.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 41 | #include "thread_state.h" |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 42 | #include "throw_location.h" |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 43 | #include "UniquePtr.h" |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 44 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 45 | namespace art { |
| 46 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 47 | namespace mirror { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 48 | class ArtMethod; |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 49 | class Array; |
| 50 | class Class; |
| 51 | class ClassLoader; |
| 52 | class Object; |
| 53 | template<class T> class ObjectArray; |
| 54 | template<class T> class PrimitiveArray; |
| 55 | typedef PrimitiveArray<int32_t> IntArray; |
| 56 | class StackTraceElement; |
| 57 | class StaticStorageBase; |
| 58 | class Throwable; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 59 | } // namespace mirror |
| 60 | class BaseMutex; |
| 61 | class ClassLinker; |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 62 | class Closure; |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 63 | class Context; |
Ian Rogers | 1b09b09 | 2012-08-20 15:35:52 -0700 | [diff] [blame] | 64 | struct DebugInvokeReq; |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 65 | class DexFile; |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 66 | struct JavaVMExt; |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 67 | struct JNIEnvExt; |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 68 | class Monitor; |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 69 | class Runtime; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 70 | class ScopedObjectAccess; |
| 71 | class ScopedObjectAccessUnchecked; |
Logan Chien | f7ad17e | 2012-03-15 03:10:03 +0800 | [diff] [blame] | 72 | class ShadowFrame; |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 73 | class Thread; |
| 74 | class ThreadList; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 75 | |
Elliott Hughes | 34e0696 | 2012-04-09 13:55:55 -0700 | [diff] [blame] | 76 | // Thread priorities. These must match the Thread.MIN_PRIORITY, |
| 77 | // Thread.NORM_PRIORITY, and Thread.MAX_PRIORITY constants. |
| 78 | enum ThreadPriority { |
| 79 | kMinThreadPriority = 1, |
| 80 | kNormThreadPriority = 5, |
| 81 | kMaxThreadPriority = 10, |
| 82 | }; |
| 83 | |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 84 | enum ThreadFlag { |
Ian Rogers | 50ffee2 | 2012-11-20 11:47:44 -0800 | [diff] [blame] | 85 | kSuspendRequest = 1, // If set implies that suspend_count_ > 0 and the Thread should enter the |
| 86 | // safepoint handler. |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 87 | kCheckpointRequest = 2 // Request that the thread do some checkpoint work and then continue. |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 88 | }; |
| 89 | |
Ian Rogers | df1ce91 | 2012-11-27 17:07:11 -0800 | [diff] [blame] | 90 | class PACKED(4) Thread { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 91 | public: |
Ian Rogers | 932746a | 2011-09-22 18:57:50 -0700 | [diff] [blame] | 92 | // Space to throw a StackOverflowError in. |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 93 | static const size_t kStackOverflowReservedBytes = 16 * KB; |
buzbee | c143c55 | 2011-08-20 17:38:58 -0700 | [diff] [blame] | 94 | |
Elliott Hughes | 462c944 | 2012-03-23 18:47:50 -0700 | [diff] [blame] | 95 | // Creates a new native thread corresponding to the given managed peer. |
| 96 | // Used to implement Thread.start. |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 97 | static void CreateNativeThread(JNIEnv* env, jobject peer, size_t stack_size, bool daemon); |
Carl Shapiro | 61e019d | 2011-07-14 16:53:09 -0700 | [diff] [blame] | 98 | |
Elliott Hughes | 462c944 | 2012-03-23 18:47:50 -0700 | [diff] [blame] | 99 | // Attaches the calling native thread to the runtime, returning the new native peer. |
| 100 | // Used to implement JNI AttachCurrentThread and AttachCurrentThreadAsDaemon calls. |
Mathieu Chartier | 664bebf | 2012-11-12 16:54:11 -0800 | [diff] [blame] | 101 | static Thread* Attach(const char* thread_name, bool as_daemon, jobject thread_group, |
| 102 | bool create_peer); |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 103 | |
Brian Carlstrom | caabb1b | 2011-10-11 18:09:13 -0700 | [diff] [blame] | 104 | // Reset internal state of child thread after fork. |
| 105 | void InitAfterFork(); |
| 106 | |
Ian Rogers | 0878d65 | 2013-04-18 17:38:35 -0700 | [diff] [blame] | 107 | static Thread* Current() { |
Elliott Hughes | e044735 | 2012-06-11 18:30:31 -0700 | [diff] [blame] | 108 | // We rely on Thread::Current returning NULL for a detached thread, so it's not obvious |
| 109 | // that we can replace this with a direct %fs access on x86. |
Brian Carlstrom | df62950 | 2013-07-17 22:39:56 -0700 | [diff] [blame] | 110 | if (!is_started_) { |
Ian Rogers | 0878d65 | 2013-04-18 17:38:35 -0700 | [diff] [blame] | 111 | return NULL; |
| 112 | } else { |
| 113 | void* thread = pthread_getspecific(Thread::pthread_key_self_); |
| 114 | return reinterpret_cast<Thread*>(thread); |
| 115 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 116 | } |
| 117 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 118 | static Thread* FromManagedThread(const ScopedObjectAccessUnchecked& ts, |
| 119 | mirror::Object* thread_peer) |
jeffhao | a77f0f6 | 2012-12-05 17:19:31 -0800 | [diff] [blame] | 120 | EXCLUSIVE_LOCKS_REQUIRED(Locks::thread_list_lock_) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 121 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) |
| 122 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 123 | static Thread* FromManagedThread(const ScopedObjectAccessUnchecked& ts, jobject thread) |
jeffhao | a77f0f6 | 2012-12-05 17:19:31 -0800 | [diff] [blame] | 124 | EXCLUSIVE_LOCKS_REQUIRED(Locks::thread_list_lock_) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 125 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) |
| 126 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 127 | |
Elliott Hughes | 28fa76d | 2012-04-09 17:31:46 -0700 | [diff] [blame] | 128 | // Translates 172 to pAllocArrayFromCode and so on. |
| 129 | static void DumpThreadOffset(std::ostream& os, uint32_t offset, size_t size_of_pointers); |
| 130 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 131 | // Dumps a one-line summary of thread state (used for operator<<). |
| 132 | void ShortDump(std::ostream& os) const; |
| 133 | |
| 134 | // Dumps the detailed thread state and the thread stack (used for SIGQUIT). |
| 135 | void Dump(std::ostream& os) const |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 136 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) |
| 137 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | a095764 | 2011-09-02 14:27:33 -0700 | [diff] [blame] | 138 | |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 139 | // Dumps the SIGQUIT per-thread header. 'thread' can be NULL for a non-attached thread, in which |
| 140 | // case we use 'tid' to identify the thread, and we'll include as much information as we can. |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 141 | static void DumpState(std::ostream& os, const Thread* thread, pid_t tid) |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 142 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) |
| 143 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 144 | |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 145 | ThreadState GetState() const { |
Ian Rogers | 30e173f | 2012-09-26 14:35:03 -0700 | [diff] [blame] | 146 | return static_cast<ThreadState>(state_and_flags_.as_struct.state); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 147 | } |
| 148 | |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 149 | ThreadState SetState(ThreadState new_state); |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 150 | |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 151 | int GetSuspendCount() const EXCLUSIVE_LOCKS_REQUIRED(Locks::thread_suspend_count_lock_) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 152 | return suspend_count_; |
| 153 | } |
Elliott Hughes | 038a806 | 2011-09-18 14:12:41 -0700 | [diff] [blame] | 154 | |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 155 | int GetDebugSuspendCount() const EXCLUSIVE_LOCKS_REQUIRED(Locks::thread_suspend_count_lock_) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 156 | return debug_suspend_count_; |
| 157 | } |
| 158 | |
Mathieu Chartier | 858f1c5 | 2012-10-17 17:45:55 -0700 | [diff] [blame] | 159 | bool IsSuspended() const { |
| 160 | union StateAndFlags state_and_flags = state_and_flags_; |
| 161 | return state_and_flags.as_struct.state != kRunnable && |
| 162 | (state_and_flags.as_struct.flags & kSuspendRequest) != 0; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 163 | } |
| 164 | |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 165 | void ModifySuspendCount(Thread* self, int delta, bool for_debugger) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 166 | EXCLUSIVE_LOCKS_REQUIRED(Locks::thread_suspend_count_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 167 | |
Mathieu Chartier | 0e4627e | 2012-10-23 16:13:36 -0700 | [diff] [blame] | 168 | bool RequestCheckpoint(Closure* function); |
Mathieu Chartier | 858f1c5 | 2012-10-17 17:45:55 -0700 | [diff] [blame] | 169 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 170 | // Called when thread detected that the thread_suspend_count_ was non-zero. Gives up share of |
| 171 | // mutator_lock_ and waits until it is resumed and thread_suspend_count_ is zero. |
Ian Rogers | 9da7f59 | 2012-08-20 17:14:28 -0700 | [diff] [blame] | 172 | void FullSuspendCheck() |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 173 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) |
| 174 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 175 | |
| 176 | // Transition from non-runnable to runnable state acquiring share on mutator_lock_. |
| 177 | ThreadState TransitionFromSuspendedToRunnable() |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 178 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) |
Ian Rogers | 693ff61 | 2013-02-01 10:56:12 -0800 | [diff] [blame] | 179 | SHARED_LOCK_FUNCTION(Locks::mutator_lock_) |
Ian Rogers | 1ffa32f | 2013-02-05 18:29:08 -0800 | [diff] [blame] | 180 | ALWAYS_INLINE; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 181 | |
| 182 | // Transition from runnable into a state where mutator privileges are denied. Releases share of |
| 183 | // mutator lock. |
| 184 | void TransitionFromRunnableToSuspended(ThreadState new_state) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 185 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) |
Ian Rogers | 693ff61 | 2013-02-01 10:56:12 -0800 | [diff] [blame] | 186 | UNLOCK_FUNCTION(Locks::mutator_lock_) |
Ian Rogers | 1ffa32f | 2013-02-05 18:29:08 -0800 | [diff] [blame] | 187 | ALWAYS_INLINE; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 188 | |
| 189 | // Wait for a debugger suspension on the thread associated with the given peer. Returns the |
| 190 | // thread on success, else NULL. If the thread should be suspended then request_suspension should |
| 191 | // be true on entry. If the suspension times out then *timeout is set to true. |
Elliott Hughes | f327e07 | 2013-01-09 16:01:26 -0800 | [diff] [blame] | 192 | static Thread* SuspendForDebugger(jobject peer, bool request_suspension, bool* timed_out) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 193 | LOCKS_EXCLUDED(Locks::mutator_lock_, |
| 194 | Locks::thread_list_lock_, |
| 195 | Locks::thread_suspend_count_lock_); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 196 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 197 | // Once called thread suspension will cause an assertion failure. |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 198 | #ifndef NDEBUG |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 199 | const char* StartAssertNoThreadSuspension(const char* cause) { |
| 200 | CHECK(cause != NULL); |
| 201 | const char* previous_cause = last_no_thread_suspension_cause_; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 202 | no_thread_suspension_++; |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 203 | last_no_thread_suspension_cause_ = cause; |
| 204 | return previous_cause; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 205 | } |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 206 | #else |
| 207 | const char* StartAssertNoThreadSuspension(const char* cause) { |
| 208 | CHECK(cause != NULL); |
| 209 | return NULL; |
| 210 | } |
| 211 | #endif |
| 212 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 213 | // End region where no thread suspension is expected. |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 214 | #ifndef NDEBUG |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 215 | void EndAssertNoThreadSuspension(const char* old_cause) { |
| 216 | CHECK(old_cause != NULL || no_thread_suspension_ == 1); |
| 217 | CHECK_GT(no_thread_suspension_, 0U); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 218 | no_thread_suspension_--; |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 219 | last_no_thread_suspension_cause_ = old_cause; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 220 | } |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 221 | #else |
| 222 | void EndAssertNoThreadSuspension(const char*) { |
| 223 | } |
| 224 | #endif |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 225 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 226 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 227 | void AssertThreadSuspensionIsAllowable(bool check_locks = true) const; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 228 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 229 | bool IsDaemon() const { |
| 230 | return daemon_; |
| 231 | } |
| 232 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 233 | bool HoldsLock(mirror::Object*); |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 234 | |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 235 | /* |
| 236 | * Changes the priority of this thread to match that of the java.lang.Thread object. |
| 237 | * |
| 238 | * We map a priority value from 1-10 to Linux "nice" values, where lower |
| 239 | * numbers indicate higher priority. |
| 240 | */ |
| 241 | void SetNativePriority(int newPriority); |
| 242 | |
| 243 | /* |
| 244 | * Returns the thread priority for the current thread by querying the system. |
| 245 | * This is useful when attaching a thread through JNI. |
| 246 | * |
| 247 | * Returns a value from 1 to 10 (compatible with java.lang.Thread values). |
| 248 | */ |
| 249 | static int GetNativePriority(); |
| 250 | |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 251 | uint32_t GetThinLockId() const { |
| 252 | return thin_lock_id_; |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 253 | } |
| 254 | |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 255 | pid_t GetTid() const { |
| 256 | return tid_; |
| 257 | } |
Elliott Hughes | e27955c | 2011-08-26 15:21:24 -0700 | [diff] [blame] | 258 | |
Elliott Hughes | ffb465f | 2012-03-01 18:46:05 -0800 | [diff] [blame] | 259 | // Returns the java.lang.Thread's name, or NULL if this Thread* doesn't have a peer. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 260 | mirror::String* GetThreadName(const ScopedObjectAccessUnchecked& ts) const |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 261 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 899e789 | 2012-01-24 14:57:32 -0800 | [diff] [blame] | 262 | |
Elliott Hughes | ffb465f | 2012-03-01 18:46:05 -0800 | [diff] [blame] | 263 | // Sets 'name' to the java.lang.Thread's name. This requires no transition to managed code, |
| 264 | // allocation, or locking. |
| 265 | void GetThreadName(std::string& name) const; |
| 266 | |
Elliott Hughes | 899e789 | 2012-01-24 14:57:32 -0800 | [diff] [blame] | 267 | // Sets the thread's name. |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 268 | void SetThreadName(const char* name) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | fc86162 | 2011-10-17 17:57:47 -0700 | [diff] [blame] | 269 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 270 | mirror::Object* GetPeer() const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 271 | CHECK(jpeer_ == NULL); |
| 272 | return opeer_; |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 273 | } |
| 274 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 275 | bool HasPeer() const { |
Elliott Hughes | 80537bb | 2013-01-04 16:37:26 -0800 | [diff] [blame] | 276 | return jpeer_ != NULL || opeer_ != NULL; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 277 | } |
| 278 | |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 279 | RuntimeStats* GetStats() { |
| 280 | return &stats_; |
| 281 | } |
| 282 | |
Elliott Hughes | 7dc5166 | 2012-05-16 14:48:43 -0700 | [diff] [blame] | 283 | bool IsStillStarting() const; |
| 284 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 285 | bool IsExceptionPending() const { |
jeffhao | 1eab958 | 2013-01-22 13:33:52 -0800 | [diff] [blame] | 286 | return exception_ != NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 287 | } |
| 288 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 289 | mirror::Throwable* GetException(ThrowLocation* throw_location) const |
| 290 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 291 | if (throw_location != NULL) { |
| 292 | *throw_location = throw_location_; |
| 293 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 294 | return exception_; |
| 295 | } |
| 296 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 297 | void AssertNoPendingException() const; |
| 298 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 299 | void SetException(const ThrowLocation& throw_location, mirror::Throwable* new_exception) |
| 300 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 301 | CHECK(new_exception != NULL); |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 302 | // TODO: DCHECK(!IsExceptionPending()); |
| 303 | exception_ = new_exception; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 304 | throw_location_ = throw_location; |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 305 | } |
| 306 | |
| 307 | void ClearException() { |
| 308 | exception_ = NULL; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 309 | throw_location_.Clear(); |
jeffhao | 94d6df4 | 2012-11-26 16:02:12 -0800 | [diff] [blame] | 310 | } |
| 311 | |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 312 | // Find catch block and perform long jump to appropriate exception handle |
jeffhao | 94d6df4 | 2012-11-26 16:02:12 -0800 | [diff] [blame] | 313 | void QuickDeliverException() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 314 | |
| 315 | Context* GetLongJumpContext(); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 316 | void ReleaseLongJumpContext(Context* context) { |
| 317 | DCHECK(long_jump_context_ == NULL); |
| 318 | long_jump_context_ = context; |
Shih-wei Liao | 1a18c8c | 2011-08-14 17:47:36 -0700 | [diff] [blame] | 319 | } |
| 320 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 321 | mirror::ArtMethod* GetCurrentMethod(uint32_t* dex_pc) const |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 322 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 323 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 324 | ThrowLocation GetCurrentLocationForThrow() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| 325 | |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 326 | void SetTopOfStack(void* stack, uintptr_t pc) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 327 | mirror::ArtMethod** top_method = reinterpret_cast<mirror::ArtMethod**>(stack); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 328 | managed_stack_.SetTopQuickFrame(top_method); |
| 329 | managed_stack_.SetTopQuickFramePc(pc); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 330 | } |
| 331 | |
Jeff Hao | 11ffc2d | 2013-02-01 11:52:17 -0800 | [diff] [blame] | 332 | void SetTopOfShadowStack(ShadowFrame* top) { |
| 333 | managed_stack_.SetTopShadowFrame(top); |
| 334 | } |
| 335 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 336 | bool HasManagedStack() const { |
| 337 | return managed_stack_.GetTopQuickFrame() != NULL || managed_stack_.GetTopShadowFrame() != NULL; |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 338 | } |
| 339 | |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 340 | // If 'msg' is NULL, no detail message is set. |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 341 | void ThrowNewException(const ThrowLocation& throw_location, |
| 342 | const char* exception_class_descriptor, const char* msg) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 343 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 5cb5ad2 | 2011-10-02 12:13:39 -0700 | [diff] [blame] | 344 | |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 345 | // If 'msg' is NULL, no detail message is set. An exception must be pending, and will be |
| 346 | // used as the new exception's cause. |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 347 | void ThrowNewWrappedException(const ThrowLocation& throw_location, |
| 348 | const char* exception_class_descriptor, |
| 349 | const char* msg) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 350 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 351 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 352 | void ThrowNewExceptionF(const ThrowLocation& throw_location, |
| 353 | const char* exception_class_descriptor, const char* fmt, ...) |
| 354 | __attribute__((format(printf, 4, 5))) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 355 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | a5b897e | 2011-08-16 11:33:06 -0700 | [diff] [blame] | 356 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 357 | void ThrowNewExceptionV(const ThrowLocation& throw_location, |
| 358 | const char* exception_class_descriptor, const char* fmt, va_list ap) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 359 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 360 | |
Elliott Hughes | 2ced6a5 | 2011-10-16 18:44:48 -0700 | [diff] [blame] | 361 | // OutOfMemoryError is special, because we need to pre-allocate an instance. |
Elliott Hughes | 8a8b9cb | 2012-04-13 18:29:22 -0700 | [diff] [blame] | 362 | // Only the GC should call this. |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 363 | void ThrowOutOfMemoryError(const char* msg) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 79082e3 | 2011-08-25 12:07:32 -0700 | [diff] [blame] | 364 | |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 365 | static void Startup(); |
Elliott Hughes | 038a806 | 2011-09-18 14:12:41 -0700 | [diff] [blame] | 366 | static void FinishStartup(); |
Elliott Hughes | c1674ed | 2011-08-25 18:09:09 -0700 | [diff] [blame] | 367 | static void Shutdown(); |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 368 | |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 369 | // JNI methods |
Elliott Hughes | 69f5bc6 | 2011-08-24 09:26:14 -0700 | [diff] [blame] | 370 | JNIEnvExt* GetJniEnv() const { |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 371 | return jni_env_; |
| 372 | } |
| 373 | |
Ian Rogers | 408f79a | 2011-08-23 18:22:33 -0700 | [diff] [blame] | 374 | // Convert a jobject into a Object* |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 375 | mirror::Object* DecodeJObject(jobject obj) const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 376 | |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 377 | // Implements java.lang.Thread.interrupted. |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 378 | bool Interrupted(); |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 379 | // Implements java.lang.Thread.isInterrupted. |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 380 | bool IsInterrupted(); |
| 381 | void Interrupt(); |
| 382 | void Notify(); |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 383 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 384 | mirror::ClassLoader* GetClassLoaderOverride() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
buzbee | c143c55 | 2011-08-20 17:38:58 -0700 | [diff] [blame] | 385 | return class_loader_override_; |
| 386 | } |
| 387 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 388 | void SetClassLoaderOverride(mirror::ClassLoader* class_loader_override) { |
buzbee | c143c55 | 2011-08-20 17:38:58 -0700 | [diff] [blame] | 389 | class_loader_override_ = class_loader_override; |
| 390 | } |
| 391 | |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 392 | // Create the internal representation of a stack trace, that is more time |
| 393 | // and space efficient to compute than the StackTraceElement[] |
Ian Rogers | 64b6d14 | 2012-10-29 16:34:15 -0700 | [diff] [blame] | 394 | jobject CreateInternalStackTrace(const ScopedObjectAccessUnchecked& soa) const |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 395 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 396 | |
Elliott Hughes | 01158d7 | 2011-09-19 19:47:10 -0700 | [diff] [blame] | 397 | // Convert an internal stack trace representation (returned by CreateInternalStackTrace) to a |
| 398 | // StackTraceElement[]. If output_array is NULL, a new array is created, otherwise as many |
| 399 | // frames as will fit are written into the given array. If stack_depth is non-NULL, it's updated |
| 400 | // with the number of valid frames in the returned array. |
| 401 | static jobjectArray InternalStackTraceToStackTraceElementArray(JNIEnv* env, jobject internal, |
| 402 | jobjectArray output_array = NULL, int* stack_depth = NULL); |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 403 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 404 | void VisitRoots(RootVisitor* visitor, void* arg) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 410c0c8 | 2011-09-01 17:58:25 -0700 | [diff] [blame] | 405 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 406 | void VerifyRoots(VerifyRootVisitor* visitor, void* arg) |
Mathieu Chartier | 6f1c949 | 2012-10-15 12:08:41 -0700 | [diff] [blame] | 407 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| 408 | |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 409 | void VerifyStack() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
jeffhao | 2504552 | 2012-03-13 19:34:37 -0700 | [diff] [blame] | 410 | |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 411 | // |
| 412 | // Offsets of various members of native Thread class, used by compiled code. |
| 413 | // |
| 414 | |
| 415 | static ThreadOffset SelfOffset() { |
| 416 | return ThreadOffset(OFFSETOF_MEMBER(Thread, self_)); |
| 417 | } |
| 418 | |
| 419 | static ThreadOffset ExceptionOffset() { |
| 420 | return ThreadOffset(OFFSETOF_MEMBER(Thread, exception_)); |
| 421 | } |
| 422 | |
Ian Rogers | 07ec8e1 | 2012-12-01 01:26:51 -0800 | [diff] [blame] | 423 | static ThreadOffset PeerOffset() { |
| 424 | return ThreadOffset(OFFSETOF_MEMBER(Thread, opeer_)); |
| 425 | } |
| 426 | |
Elliott Hughes | 54e7df1 | 2011-09-16 11:47:04 -0700 | [diff] [blame] | 427 | static ThreadOffset ThinLockIdOffset() { |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 428 | return ThreadOffset(OFFSETOF_MEMBER(Thread, thin_lock_id_)); |
| 429 | } |
| 430 | |
| 431 | static ThreadOffset CardTableOffset() { |
| 432 | return ThreadOffset(OFFSETOF_MEMBER(Thread, card_table_)); |
| 433 | } |
| 434 | |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 435 | static ThreadOffset ThreadFlagsOffset() { |
| 436 | return ThreadOffset(OFFSETOF_MEMBER(Thread, state_and_flags_)); |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 437 | } |
| 438 | |
Ian Rogers | 932746a | 2011-09-22 18:57:50 -0700 | [diff] [blame] | 439 | // Size of stack less any space reserved for stack overflow |
jeffhao | d752132 | 2012-11-21 15:38:24 -0800 | [diff] [blame] | 440 | size_t GetStackSize() const { |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 441 | return stack_size_ - (stack_end_ - stack_begin_); |
Ian Rogers | 932746a | 2011-09-22 18:57:50 -0700 | [diff] [blame] | 442 | } |
| 443 | |
jeffhao | d752132 | 2012-11-21 15:38:24 -0800 | [diff] [blame] | 444 | byte* GetStackEnd() const { |
| 445 | return stack_end_; |
| 446 | } |
| 447 | |
Ian Rogers | 932746a | 2011-09-22 18:57:50 -0700 | [diff] [blame] | 448 | // Set the stack end to that to be used during a stack overflow |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 449 | void SetStackEndForStackOverflow() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | 932746a | 2011-09-22 18:57:50 -0700 | [diff] [blame] | 450 | |
| 451 | // Set the stack end to that to be used during regular execution |
| 452 | void ResetDefaultStackEnd() { |
| 453 | // Our stacks grow down, so we want stack_end_ to be near there, but reserving enough room |
| 454 | // to throw a StackOverflowError. |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 455 | stack_end_ = stack_begin_ + kStackOverflowReservedBytes; |
Ian Rogers | 932746a | 2011-09-22 18:57:50 -0700 | [diff] [blame] | 456 | } |
| 457 | |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 458 | bool IsHandlingStackOverflow() const { |
| 459 | return stack_end_ == stack_begin_; |
| 460 | } |
| 461 | |
Elliott Hughes | 449b4bd | 2011-09-09 12:01:38 -0700 | [diff] [blame] | 462 | static ThreadOffset StackEndOffset() { |
| 463 | return ThreadOffset(OFFSETOF_MEMBER(Thread, stack_end_)); |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 464 | } |
| 465 | |
| 466 | static ThreadOffset JniEnvOffset() { |
| 467 | return ThreadOffset(OFFSETOF_MEMBER(Thread, jni_env_)); |
| 468 | } |
| 469 | |
| 470 | static ThreadOffset TopOfManagedStackOffset() { |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 471 | return ThreadOffset(OFFSETOF_MEMBER(Thread, managed_stack_) + |
| 472 | ManagedStack::TopQuickFrameOffset()); |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 473 | } |
| 474 | |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 475 | static ThreadOffset TopOfManagedStackPcOffset() { |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 476 | return ThreadOffset(OFFSETOF_MEMBER(Thread, managed_stack_) + |
| 477 | ManagedStack::TopQuickFramePcOffset()); |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 478 | } |
| 479 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 480 | const ManagedStack* GetManagedStack() const { |
| 481 | return &managed_stack_; |
| 482 | } |
| 483 | |
| 484 | // Linked list recording fragments of managed stack. |
| 485 | void PushManagedStackFragment(ManagedStack* fragment) { |
| 486 | managed_stack_.PushManagedStackFragment(fragment); |
| 487 | } |
| 488 | void PopManagedStackFragment(const ManagedStack& fragment) { |
| 489 | managed_stack_.PopManagedStackFragment(fragment); |
| 490 | } |
| 491 | |
| 492 | ShadowFrame* PushShadowFrame(ShadowFrame* new_top_frame) { |
| 493 | return managed_stack_.PushShadowFrame(new_top_frame); |
TDYa127 | de479be | 2012-05-31 08:03:26 -0700 | [diff] [blame] | 494 | } |
| 495 | |
| 496 | ShadowFrame* PopShadowFrame() { |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 497 | return managed_stack_.PopShadowFrame(); |
TDYa127 | de479be | 2012-05-31 08:03:26 -0700 | [diff] [blame] | 498 | } |
Logan Chien | f7ad17e | 2012-03-15 03:10:03 +0800 | [diff] [blame] | 499 | |
TDYa127 | d668a06 | 2012-04-13 12:36:57 -0700 | [diff] [blame] | 500 | static ThreadOffset TopShadowFrameOffset() { |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 501 | return ThreadOffset(OFFSETOF_MEMBER(Thread, managed_stack_) + |
| 502 | ManagedStack::TopShadowFrameOffset()); |
TDYa127 | d668a06 | 2012-04-13 12:36:57 -0700 | [diff] [blame] | 503 | } |
| 504 | |
TDYa127 | ce4cc0d | 2012-11-18 16:59:53 -0800 | [diff] [blame] | 505 | // Number of references allocated in JNI ShadowFrames on this thread |
| 506 | size_t NumJniShadowFrameReferences() const { |
| 507 | return managed_stack_.NumJniShadowFrameReferences(); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 508 | } |
| 509 | |
| 510 | // Number of references in SIRTs on this thread |
| 511 | size_t NumSirtReferences(); |
| 512 | |
TDYa127 | ce4cc0d | 2012-11-18 16:59:53 -0800 | [diff] [blame] | 513 | // Number of references allocated in SIRTs & JNI shadow frames on this thread |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 514 | size_t NumStackReferences() { |
TDYa127 | ce4cc0d | 2012-11-18 16:59:53 -0800 | [diff] [blame] | 515 | return NumSirtReferences() + NumJniShadowFrameReferences(); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 516 | }; |
| 517 | |
| 518 | // Is the given obj in this thread's stack indirect reference table? |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 519 | bool SirtContains(jobject obj) const; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 520 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 521 | void SirtVisitRoots(RootVisitor* visitor, void* arg); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 522 | |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 523 | void PushSirt(StackIndirectReferenceTable* sirt) { |
| 524 | sirt->SetLink(top_sirt_); |
| 525 | top_sirt_ = sirt; |
| 526 | } |
| 527 | |
| 528 | StackIndirectReferenceTable* PopSirt() { |
| 529 | StackIndirectReferenceTable* sirt = top_sirt_; |
| 530 | DCHECK(sirt != NULL); |
| 531 | top_sirt_ = top_sirt_->GetLink(); |
| 532 | return sirt; |
| 533 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 534 | |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 535 | static ThreadOffset TopSirtOffset() { |
| 536 | return ThreadOffset(OFFSETOF_MEMBER(Thread, top_sirt_)); |
| 537 | } |
| 538 | |
Elliott Hughes | 475fc23 | 2011-10-25 15:00:35 -0700 | [diff] [blame] | 539 | DebugInvokeReq* GetInvokeReq() { |
| 540 | return debug_invoke_req_; |
| 541 | } |
| 542 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 543 | void SetDeoptimizationShadowFrame(ShadowFrame* sf); |
| 544 | void SetDeoptimizationReturnValue(const JValue& ret_val); |
Ian Rogers | 306057f | 2012-11-26 12:45:53 -0800 | [diff] [blame] | 545 | |
| 546 | ShadowFrame* GetAndClearDeoptimizationShadowFrame(JValue* ret_val); |
| 547 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 548 | std::deque<instrumentation::InstrumentationStackFrame>* GetInstrumentationStack() { |
jeffhao | 725a957 | 2012-11-13 18:20:12 -0800 | [diff] [blame] | 549 | return instrumentation_stack_; |
jeffhao | e343b76 | 2011-12-05 16:36:44 -0800 | [diff] [blame] | 550 | } |
| 551 | |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 552 | BaseMutex* GetHeldMutex(LockLevel level) const { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 553 | return held_mutexes_[level]; |
| 554 | } |
| 555 | |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 556 | void SetHeldMutex(LockLevel level, BaseMutex* mutex) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 557 | held_mutexes_[level] = mutex; |
| 558 | } |
Elliott Hughes | ffb465f | 2012-03-01 18:46:05 -0800 | [diff] [blame] | 559 | |
Mathieu Chartier | 752a0e6 | 2013-06-27 11:03:27 -0700 | [diff] [blame] | 560 | void RunCheckpointFunction(); |
Mathieu Chartier | 858f1c5 | 2012-10-17 17:45:55 -0700 | [diff] [blame] | 561 | |
| 562 | bool ReadFlag(ThreadFlag flag) const { |
| 563 | return (state_and_flags_.as_struct.flags & flag) != 0; |
| 564 | } |
| 565 | |
Jeff Hao | 9cec247 | 2013-05-14 18:17:06 -0700 | [diff] [blame] | 566 | bool TestAllFlags() const { |
| 567 | return (state_and_flags_.as_struct.flags != 0); |
| 568 | } |
| 569 | |
Mathieu Chartier | 858f1c5 | 2012-10-17 17:45:55 -0700 | [diff] [blame] | 570 | void AtomicSetFlag(ThreadFlag flag); |
| 571 | |
| 572 | void AtomicClearFlag(ThreadFlag flag); |
| 573 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 574 | private: |
Elliott Hughes | 5d96a71 | 2012-06-28 12:24:27 -0700 | [diff] [blame] | 575 | // We have no control over the size of 'bool', but want our boolean fields |
| 576 | // to be 4-byte quantities. |
| 577 | typedef uint32_t bool32_t; |
| 578 | |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 579 | explicit Thread(bool daemon); |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 580 | ~Thread() LOCKS_EXCLUDED(Locks::mutator_lock_, |
| 581 | Locks::thread_suspend_count_lock_); |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 582 | void Destroy(); |
| 583 | friend class ThreadList; // For ~Thread and Destroy. |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 584 | |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 585 | void CreatePeer(const char* name, bool as_daemon, jobject thread_group); |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 586 | friend class Runtime; // For CreatePeer. |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 587 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 588 | // Avoid use, callers should use SetState. Used only by SignalCatcher::HandleSigQuit, ~Thread and |
| 589 | // Dbg::Disconnected. |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 590 | ThreadState SetStateUnsafe(ThreadState new_state) { |
| 591 | ThreadState old_state = GetState(); |
Ian Rogers | 30e173f | 2012-09-26 14:35:03 -0700 | [diff] [blame] | 592 | state_and_flags_.as_struct.state = new_state; |
Ian Rogers | c747cff | 2012-08-31 18:20:08 -0700 | [diff] [blame] | 593 | return old_state; |
| 594 | } |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 595 | friend class SignalCatcher; // For SetStateUnsafe. |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 596 | friend class Dbg; // F or SetStateUnsafe. |
Ian Rogers | c747cff | 2012-08-31 18:20:08 -0700 | [diff] [blame] | 597 | |
Ian Rogers | 04d7aa9 | 2013-03-16 14:29:17 -0700 | [diff] [blame] | 598 | void VerifyStackImpl() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| 599 | |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 600 | void DumpState(std::ostream& os) const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 601 | void DumpStack(std::ostream& os) const |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 602 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) |
| 603 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 604 | |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 605 | // Out-of-line conveniences for debugging in gdb. |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 606 | static Thread* CurrentFromGdb(); // Like Thread::Current. |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 607 | // Like Thread::Dump(std::cerr). |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 608 | void DumpFromGdb() const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 609 | |
Elliott Hughes | 93e74e8 | 2011-09-13 11:07:03 -0700 | [diff] [blame] | 610 | static void* CreateCallback(void* arg); |
| 611 | |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 612 | void HandleUncaughtExceptions(ScopedObjectAccess& soa) |
| 613 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| 614 | void RemoveFromThreadGroup(ScopedObjectAccess& soa) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 615 | |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 616 | void Init(ThreadList*, JavaVMExt*) EXCLUSIVE_LOCKS_REQUIRED(Locks::runtime_shutdown_lock_); |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 617 | void InitCardTable(); |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 618 | void InitCpu(); |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 619 | void InitTlsEntryPoints(); |
Brian Carlstrom | caabb1b | 2011-10-11 18:09:13 -0700 | [diff] [blame] | 620 | void InitTid(); |
Brian Carlstrom | caabb1b | 2011-10-11 18:09:13 -0700 | [diff] [blame] | 621 | void InitPthreadKeySelf(); |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 622 | void InitStackHwm(); |
| 623 | |
Elliott Hughes | d6a23bd | 2013-07-16 14:19:52 -0700 | [diff] [blame] | 624 | void SetUpAlternateSignalStack(); |
| 625 | void TearDownAlternateSignalStack(); |
| 626 | |
Ian Rogers | c604d73 | 2012-10-14 16:09:54 -0700 | [diff] [blame] | 627 | void NotifyLocked(Thread* self) EXCLUSIVE_LOCKS_REQUIRED(wait_mutex_); |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 628 | |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 629 | static void ThreadExitCallback(void* arg); |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 630 | |
Ian Rogers | 0878d65 | 2013-04-18 17:38:35 -0700 | [diff] [blame] | 631 | // Has Thread::Startup been called? |
| 632 | static bool is_started_; |
| 633 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 634 | // TLS key used to retrieve the Thread*. |
| 635 | static pthread_key_t pthread_key_self_; |
| 636 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 637 | // Used to notify threads that they should attempt to resume, they will suspend again if |
| 638 | // their suspend count is > 0. |
Ian Rogers | c604d73 | 2012-10-14 16:09:54 -0700 | [diff] [blame] | 639 | static ConditionVariable* resume_cond_ GUARDED_BY(Locks::thread_suspend_count_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 640 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 641 | // --- Frequently accessed fields first for short offsets --- |
| 642 | |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 643 | // 32 bits of atomically changed state and flags. Keeping as 32 bits allows and atomic CAS to |
| 644 | // change from being Suspended to Runnable without a suspend request occurring. |
Ian Rogers | 30e173f | 2012-09-26 14:35:03 -0700 | [diff] [blame] | 645 | union StateAndFlags { |
Ian Rogers | df1ce91 | 2012-11-27 17:07:11 -0800 | [diff] [blame] | 646 | struct PACKED(4) { |
Ian Rogers | 30e173f | 2012-09-26 14:35:03 -0700 | [diff] [blame] | 647 | // Bitfield of flag values. Must be changed atomically so that flag values aren't lost. See |
| 648 | // ThreadFlags for bit field meanings. |
| 649 | volatile uint16_t flags; |
| 650 | // Holds the ThreadState. May be changed non-atomically between Suspended (ie not Runnable) |
| 651 | // transitions. Changing to Runnable requires that the suspend_request be part of the atomic |
| 652 | // operation. If a thread is suspended and a suspend_request is present, a thread may not |
| 653 | // change to Runnable as a GC or other operation is in progress. |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 654 | volatile uint16_t state; |
Ian Rogers | 30e173f | 2012-09-26 14:35:03 -0700 | [diff] [blame] | 655 | } as_struct; |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 656 | volatile int32_t as_int; |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 657 | }; |
Ian Rogers | 30e173f | 2012-09-26 14:35:03 -0700 | [diff] [blame] | 658 | union StateAndFlags state_and_flags_; |
| 659 | COMPILE_ASSERT(sizeof(union StateAndFlags) == sizeof(int32_t), |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 660 | sizeof_state_and_flags_and_int32_are_different); |
| 661 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 662 | // A non-zero value is used to tell the current thread to enter a safe point |
| 663 | // at the next poll. |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 664 | int suspend_count_ GUARDED_BY(Locks::thread_suspend_count_lock_); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 665 | |
| 666 | // The biased card table, see CardTable for details |
| 667 | byte* card_table_; |
| 668 | |
| 669 | // The pending exception or NULL. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 670 | mirror::Throwable* exception_; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 671 | |
| 672 | // The end of this thread's stack. This is the lowest safely-addressable address on the stack. |
| 673 | // We leave extra space so there's room for the code that throws StackOverflowError. |
| 674 | byte* stack_end_; |
| 675 | |
| 676 | // The top of the managed stack often manipulated directly by compiler generated code. |
| 677 | ManagedStack managed_stack_; |
| 678 | |
| 679 | // Every thread may have an associated JNI environment |
| 680 | JNIEnvExt* jni_env_; |
| 681 | |
| 682 | // Initialized to "this". On certain architectures (such as x86) reading |
| 683 | // off of Thread::Current is easy but getting the address of Thread::Current |
| 684 | // is hard. This field can be read off of Thread::Current to give the address. |
| 685 | Thread* self_; |
| 686 | |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 687 | // Our managed peer (an instance of java.lang.Thread). The jobject version is used during thread |
| 688 | // start up, until the thread is registered and the local opeer_ is used. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 689 | mirror::Object* opeer_; |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 690 | jobject jpeer_; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 691 | |
| 692 | // The "lowest addressable byte" of the stack |
| 693 | byte* stack_begin_; |
| 694 | |
| 695 | // Size of the stack |
| 696 | size_t stack_size_; |
| 697 | |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 698 | // Thin lock thread id. This is a small integer used by the thin lock implementation. |
| 699 | // This is not to be confused with the native thread's tid, nor is it the value returned |
| 700 | // by java.lang.Thread.getId --- this is a distinct value, used only for locking. One |
| 701 | // important difference between this id and the ids visible to managed code is that these |
| 702 | // ones get reused (to ensure that they fit in the number of bits available). |
| 703 | uint32_t thin_lock_id_; |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 704 | |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 705 | // System thread id. |
| 706 | pid_t tid_; |
| 707 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 708 | ThrowLocation throw_location_; |
| 709 | |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 710 | // Guards the 'interrupted_' and 'wait_monitor_' members. |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 711 | mutable Mutex* wait_mutex_ DEFAULT_MUTEX_ACQUIRED_AFTER; |
| 712 | ConditionVariable* wait_cond_ GUARDED_BY(wait_mutex_); |
| 713 | // Pointer to the monitor lock we're currently waiting on (or NULL). |
| 714 | Monitor* wait_monitor_ GUARDED_BY(wait_mutex_); |
| 715 | // Thread "interrupted" status; stays raised until queried or thrown. |
| 716 | bool32_t interrupted_ GUARDED_BY(wait_mutex_); |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 717 | // The next thread in the wait set this thread is part of. |
| 718 | Thread* wait_next_; |
Elliott Hughes | 8e4aac5 | 2011-09-26 17:03:36 -0700 | [diff] [blame] | 719 | // If we're blocked in MonitorEnter, this is the object we're trying to lock. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 720 | mirror::Object* monitor_enter_object_; |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 721 | |
| 722 | friend class Monitor; |
Elliott Hughes | f327e07 | 2013-01-09 16:01:26 -0800 | [diff] [blame] | 723 | friend class MonitorInfo; |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 724 | |
Ian Rogers | 408f79a | 2011-08-23 18:22:33 -0700 | [diff] [blame] | 725 | // Top of linked list of stack indirect reference tables or NULL for none |
| 726 | StackIndirectReferenceTable* top_sirt_; |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 727 | |
Carl Shapiro | 69759ea | 2011-07-21 18:13:35 -0700 | [diff] [blame] | 728 | Runtime* runtime_; |
| 729 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 730 | RuntimeStats stats_; |
Ian Rogers | 45a76cb | 2011-07-21 22:00:15 -0700 | [diff] [blame] | 731 | |
Elliott Hughes | edcc09c | 2011-08-21 18:47:05 -0700 | [diff] [blame] | 732 | // Needed to get the right ClassLoader in JNI_OnLoad, but also |
| 733 | // useful for testing. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 734 | mirror::ClassLoader* class_loader_override_; |
buzbee | c143c55 | 2011-08-20 17:38:58 -0700 | [diff] [blame] | 735 | |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 736 | // Thread local, lazily allocated, long jump context. Used to deliver exceptions. |
Elliott Hughes | 85d1545 | 2011-09-16 17:33:01 -0700 | [diff] [blame] | 737 | Context* long_jump_context_; |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 738 | |
Elliott Hughes | 418dfe7 | 2011-10-06 18:56:27 -0700 | [diff] [blame] | 739 | // A boolean telling us whether we're recursively throwing OOME. |
Elliott Hughes | 5d96a71 | 2012-06-28 12:24:27 -0700 | [diff] [blame] | 740 | bool32_t throwing_OutOfMemoryError_; |
Elliott Hughes | 726079d | 2011-10-07 18:43:44 -0700 | [diff] [blame] | 741 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 742 | // How much of 'suspend_count_' is by request of the debugger, used to set things right |
| 743 | // when the debugger detaches. Must be <= suspend_count_. |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 744 | int debug_suspend_count_ GUARDED_BY(Locks::thread_suspend_count_lock_); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 745 | |
Elliott Hughes | 475fc23 | 2011-10-25 15:00:35 -0700 | [diff] [blame] | 746 | // JDWP invoke-during-breakpoint support. |
| 747 | DebugInvokeReq* debug_invoke_req_; |
| 748 | |
Ian Rogers | 306057f | 2012-11-26 12:45:53 -0800 | [diff] [blame] | 749 | // Shadow frame that is used temporarily during the deoptimization of a method. |
| 750 | ShadowFrame* deoptimization_shadow_frame_; |
| 751 | JValue deoptimization_return_value_; |
| 752 | |
jeffhao | 725a957 | 2012-11-13 18:20:12 -0800 | [diff] [blame] | 753 | // Additional stack used by method instrumentation to store method and return pc values. |
Ian Rogers | 306057f | 2012-11-26 12:45:53 -0800 | [diff] [blame] | 754 | // Stored as a pointer since std::deque is not PACKED. |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 755 | std::deque<instrumentation::InstrumentationStackFrame>* instrumentation_stack_; |
jeffhao | e343b76 | 2011-12-05 16:36:44 -0800 | [diff] [blame] | 756 | |
Elliott Hughes | 899e789 | 2012-01-24 14:57:32 -0800 | [diff] [blame] | 757 | // A cached copy of the java.lang.Thread's name. |
| 758 | std::string* name_; |
| 759 | |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 760 | // Is the thread a daemon? |
Elliott Hughes | 5d96a71 | 2012-06-28 12:24:27 -0700 | [diff] [blame] | 761 | const bool32_t daemon_; |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 762 | |
Elliott Hughes | 0d39c12 | 2012-06-06 16:41:17 -0700 | [diff] [blame] | 763 | // A cached pthread_t for the pthread underlying this Thread*. |
| 764 | pthread_t pthread_self_; |
| 765 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 766 | // Support for Mutex lock hierarchy bug detection. |
Elliott Hughes | 0f82716 | 2013-02-26 12:12:58 -0800 | [diff] [blame] | 767 | BaseMutex* held_mutexes_[kLockLevelCount]; |
Elliott Hughes | ffb465f | 2012-03-01 18:46:05 -0800 | [diff] [blame] | 768 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 769 | // A positive value implies we're in a region where thread suspension isn't expected. |
| 770 | uint32_t no_thread_suspension_; |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 771 | |
| 772 | // Cause for last suspension. |
| 773 | const char* last_no_thread_suspension_cause_; |
Elliott Hughes | 5d96a71 | 2012-06-28 12:24:27 -0700 | [diff] [blame] | 774 | |
Mathieu Chartier | 858f1c5 | 2012-10-17 17:45:55 -0700 | [diff] [blame] | 775 | // Pending checkpoint functions. |
Mathieu Chartier | 0e4627e | 2012-10-23 16:13:36 -0700 | [diff] [blame] | 776 | Closure* checkpoint_function_; |
Mathieu Chartier | 858f1c5 | 2012-10-17 17:45:55 -0700 | [diff] [blame] | 777 | |
Ian Rogers | a32a6fd | 2012-02-06 20:18:44 -0800 | [diff] [blame] | 778 | public: |
Ian Rogers | 7655f29 | 2013-07-29 11:07:13 -0700 | [diff] [blame] | 779 | // Entrypoint function pointers |
Elliott Hughes | 6a607ad | 2012-07-13 20:40:00 -0700 | [diff] [blame] | 780 | // TODO: move this near the top, since changing its offset requires all oats to be recompiled! |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 781 | InterpreterEntryPoints interpreter_entrypoints_; |
| 782 | JniEntryPoints jni_entrypoints_; |
Ian Rogers | 7655f29 | 2013-07-29 11:07:13 -0700 | [diff] [blame] | 783 | PortableEntryPoints portable_entrypoints_; |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 784 | QuickEntryPoints quick_entrypoints_; |
Ian Rogers | a32a6fd | 2012-02-06 20:18:44 -0800 | [diff] [blame] | 785 | |
| 786 | private: |
Elliott Hughes | 6a607ad | 2012-07-13 20:40:00 -0700 | [diff] [blame] | 787 | // How many times has our pthread key's destructor been called? |
| 788 | uint32_t thread_exit_check_count_; |
| 789 | |
Ian Rogers | 22f454c | 2012-09-08 11:06:29 -0700 | [diff] [blame] | 790 | friend class ScopedThreadStateChange; |
| 791 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 792 | DISALLOW_COPY_AND_ASSIGN(Thread); |
| 793 | }; |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 794 | |
Elliott Hughes | 330304d | 2011-08-12 14:28:05 -0700 | [diff] [blame] | 795 | std::ostream& operator<<(std::ostream& os, const Thread& thread); |
Elliott Hughes | 34e0696 | 2012-04-09 13:55:55 -0700 | [diff] [blame] | 796 | std::ostream& operator<<(std::ostream& os, const ThreadState& state); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 797 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 798 | } // namespace art |
| 799 | |
Brian Carlstrom | fc0e321 | 2013-07-17 14:40:12 -0700 | [diff] [blame] | 800 | #endif // ART_RUNTIME_THREAD_H_ |