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 | |
| 17 | #ifndef ART_SRC_THREAD_H_ |
| 18 | #define ART_SRC_THREAD_H_ |
| 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" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 29 | #include "globals.h" |
Ian Rogers | 306057f | 2012-11-26 12:45:53 -0800 | [diff] [blame] | 30 | #include "jvalue.h" |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 31 | #include "oat/runtime/oat_support_entrypoints.h" |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 32 | #include "locks.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 33 | #include "offsets.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 34 | #include "root_visitor.h" |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 35 | #include "runtime_stats.h" |
Elliott Hughes | 68e7652 | 2011-10-05 13:22:16 -0700 | [diff] [blame] | 36 | #include "stack.h" |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 37 | #include "stack_indirect_reference_table.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 38 | #include "thread_state.h" |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 39 | #include "throw_location.h" |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 40 | #include "UniquePtr.h" |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 41 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 42 | namespace art { |
| 43 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 44 | namespace mirror { |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 45 | class AbstractMethod; |
Elliott Hughes | 69f5bc6 | 2011-08-24 09:26:14 -0700 | [diff] [blame] | 46 | class Array; |
Elliott Hughes | 37f7a40 | 2011-08-22 18:56:01 -0700 | [diff] [blame] | 47 | class Class; |
Elliott Hughes | edcc09c | 2011-08-21 18:47:05 -0700 | [diff] [blame] | 48 | class ClassLoader; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 49 | class Object; |
| 50 | template<class T> class ObjectArray; |
| 51 | template<class T> class PrimitiveArray; |
| 52 | typedef PrimitiveArray<int32_t> IntArray; |
| 53 | class StackTraceElement; |
| 54 | class StaticStorageBase; |
| 55 | class Throwable; |
| 56 | } // namespace mirror |
| 57 | class BaseMutex; |
| 58 | class ClassLinker; |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 59 | class Closure; |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 60 | class Context; |
Ian Rogers | 1b09b09 | 2012-08-20 15:35:52 -0700 | [diff] [blame] | 61 | struct DebugInvokeReq; |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 62 | class DexFile; |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 63 | struct JavaVMExt; |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 64 | struct JNIEnvExt; |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 65 | class Monitor; |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 66 | class Runtime; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 67 | class ScopedObjectAccess; |
| 68 | class ScopedObjectAccessUnchecked; |
Logan Chien | f7ad17e | 2012-03-15 03:10:03 +0800 | [diff] [blame] | 69 | class ShadowFrame; |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 70 | class Thread; |
| 71 | class ThreadList; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 72 | |
Elliott Hughes | 34e0696 | 2012-04-09 13:55:55 -0700 | [diff] [blame] | 73 | // Thread priorities. These must match the Thread.MIN_PRIORITY, |
| 74 | // Thread.NORM_PRIORITY, and Thread.MAX_PRIORITY constants. |
| 75 | enum ThreadPriority { |
| 76 | kMinThreadPriority = 1, |
| 77 | kNormThreadPriority = 5, |
| 78 | kMaxThreadPriority = 10, |
| 79 | }; |
| 80 | |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 81 | enum ThreadFlag { |
Ian Rogers | 50ffee2 | 2012-11-20 11:47:44 -0800 | [diff] [blame] | 82 | kSuspendRequest = 1, // If set implies that suspend_count_ > 0 and the Thread should enter the |
| 83 | // safepoint handler. |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 84 | 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] | 85 | }; |
| 86 | |
Ian Rogers | df1ce91 | 2012-11-27 17:07:11 -0800 | [diff] [blame] | 87 | class PACKED(4) Thread { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 88 | public: |
Ian Rogers | 932746a | 2011-09-22 18:57:50 -0700 | [diff] [blame] | 89 | // Space to throw a StackOverflowError in. |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 90 | static const size_t kStackOverflowReservedBytes = 16 * KB; |
buzbee | c143c55 | 2011-08-20 17:38:58 -0700 | [diff] [blame] | 91 | |
Elliott Hughes | 462c944 | 2012-03-23 18:47:50 -0700 | [diff] [blame] | 92 | // Creates a new native thread corresponding to the given managed peer. |
| 93 | // Used to implement Thread.start. |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 94 | 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] | 95 | |
Elliott Hughes | 462c944 | 2012-03-23 18:47:50 -0700 | [diff] [blame] | 96 | // Attaches the calling native thread to the runtime, returning the new native peer. |
| 97 | // Used to implement JNI AttachCurrentThread and AttachCurrentThreadAsDaemon calls. |
Mathieu Chartier | 664bebf | 2012-11-12 16:54:11 -0800 | [diff] [blame] | 98 | static Thread* Attach(const char* thread_name, bool as_daemon, jobject thread_group, |
| 99 | bool create_peer); |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 100 | |
Brian Carlstrom | caabb1b | 2011-10-11 18:09:13 -0700 | [diff] [blame] | 101 | // Reset internal state of child thread after fork. |
| 102 | void InitAfterFork(); |
| 103 | |
Ian Rogers | 0878d65 | 2013-04-18 17:38:35 -0700 | [diff] [blame^] | 104 | static Thread* Current() { |
Elliott Hughes | e044735 | 2012-06-11 18:30:31 -0700 | [diff] [blame] | 105 | // We rely on Thread::Current returning NULL for a detached thread, so it's not obvious |
| 106 | // that we can replace this with a direct %fs access on x86. |
Ian Rogers | 0878d65 | 2013-04-18 17:38:35 -0700 | [diff] [blame^] | 107 | if(!is_started_) { |
| 108 | return NULL; |
| 109 | } else { |
| 110 | void* thread = pthread_getspecific(Thread::pthread_key_self_); |
| 111 | return reinterpret_cast<Thread*>(thread); |
| 112 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 113 | } |
| 114 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 115 | static Thread* FromManagedThread(const ScopedObjectAccessUnchecked& ts, |
| 116 | mirror::Object* thread_peer) |
jeffhao | a77f0f6 | 2012-12-05 17:19:31 -0800 | [diff] [blame] | 117 | EXCLUSIVE_LOCKS_REQUIRED(Locks::thread_list_lock_) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 118 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) |
| 119 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 120 | static Thread* FromManagedThread(const ScopedObjectAccessUnchecked& ts, jobject thread) |
jeffhao | a77f0f6 | 2012-12-05 17:19:31 -0800 | [diff] [blame] | 121 | EXCLUSIVE_LOCKS_REQUIRED(Locks::thread_list_lock_) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 122 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) |
| 123 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 124 | |
Elliott Hughes | 28fa76d | 2012-04-09 17:31:46 -0700 | [diff] [blame] | 125 | // Translates 172 to pAllocArrayFromCode and so on. |
| 126 | static void DumpThreadOffset(std::ostream& os, uint32_t offset, size_t size_of_pointers); |
| 127 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 128 | // Dumps a one-line summary of thread state (used for operator<<). |
| 129 | void ShortDump(std::ostream& os) const; |
| 130 | |
| 131 | // Dumps the detailed thread state and the thread stack (used for SIGQUIT). |
| 132 | void Dump(std::ostream& os) const |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 133 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) |
| 134 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | a095764 | 2011-09-02 14:27:33 -0700 | [diff] [blame] | 135 | |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 136 | // Dumps the SIGQUIT per-thread header. 'thread' can be NULL for a non-attached thread, in which |
| 137 | // 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] | 138 | static void DumpState(std::ostream& os, const Thread* thread, pid_t tid) |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 139 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) |
| 140 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 141 | |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 142 | ThreadState GetState() const { |
Ian Rogers | 30e173f | 2012-09-26 14:35:03 -0700 | [diff] [blame] | 143 | return static_cast<ThreadState>(state_and_flags_.as_struct.state); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 144 | } |
| 145 | |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 146 | ThreadState SetState(ThreadState new_state); |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 147 | |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 148 | int GetSuspendCount() const EXCLUSIVE_LOCKS_REQUIRED(Locks::thread_suspend_count_lock_) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 149 | return suspend_count_; |
| 150 | } |
Elliott Hughes | 038a806 | 2011-09-18 14:12:41 -0700 | [diff] [blame] | 151 | |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 152 | int GetDebugSuspendCount() const EXCLUSIVE_LOCKS_REQUIRED(Locks::thread_suspend_count_lock_) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 153 | return debug_suspend_count_; |
| 154 | } |
| 155 | |
Mathieu Chartier | 858f1c5 | 2012-10-17 17:45:55 -0700 | [diff] [blame] | 156 | bool IsSuspended() const { |
| 157 | union StateAndFlags state_and_flags = state_and_flags_; |
| 158 | return state_and_flags.as_struct.state != kRunnable && |
| 159 | (state_and_flags.as_struct.flags & kSuspendRequest) != 0; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 160 | } |
| 161 | |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 162 | void ModifySuspendCount(Thread* self, int delta, bool for_debugger) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 163 | EXCLUSIVE_LOCKS_REQUIRED(Locks::thread_suspend_count_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 164 | |
Mathieu Chartier | 0e4627e | 2012-10-23 16:13:36 -0700 | [diff] [blame] | 165 | bool RequestCheckpoint(Closure* function); |
Mathieu Chartier | 858f1c5 | 2012-10-17 17:45:55 -0700 | [diff] [blame] | 166 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 167 | // Called when thread detected that the thread_suspend_count_ was non-zero. Gives up share of |
| 168 | // 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] | 169 | void FullSuspendCheck() |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 170 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) |
| 171 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 172 | |
| 173 | // Transition from non-runnable to runnable state acquiring share on mutator_lock_. |
| 174 | ThreadState TransitionFromSuspendedToRunnable() |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 175 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) |
Ian Rogers | 693ff61 | 2013-02-01 10:56:12 -0800 | [diff] [blame] | 176 | SHARED_LOCK_FUNCTION(Locks::mutator_lock_) |
Ian Rogers | 1ffa32f | 2013-02-05 18:29:08 -0800 | [diff] [blame] | 177 | ALWAYS_INLINE; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 178 | |
| 179 | // Transition from runnable into a state where mutator privileges are denied. Releases share of |
| 180 | // mutator lock. |
| 181 | void TransitionFromRunnableToSuspended(ThreadState new_state) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 182 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) |
Ian Rogers | 693ff61 | 2013-02-01 10:56:12 -0800 | [diff] [blame] | 183 | UNLOCK_FUNCTION(Locks::mutator_lock_) |
Ian Rogers | 1ffa32f | 2013-02-05 18:29:08 -0800 | [diff] [blame] | 184 | ALWAYS_INLINE; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 185 | |
| 186 | // Wait for a debugger suspension on the thread associated with the given peer. Returns the |
| 187 | // thread on success, else NULL. If the thread should be suspended then request_suspension should |
| 188 | // 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] | 189 | static Thread* SuspendForDebugger(jobject peer, bool request_suspension, bool* timed_out) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 190 | LOCKS_EXCLUDED(Locks::mutator_lock_, |
| 191 | Locks::thread_list_lock_, |
| 192 | Locks::thread_suspend_count_lock_); |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 193 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 194 | // Once called thread suspension will cause an assertion failure. |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 195 | #ifndef NDEBUG |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 196 | const char* StartAssertNoThreadSuspension(const char* cause) { |
| 197 | CHECK(cause != NULL); |
| 198 | const char* previous_cause = last_no_thread_suspension_cause_; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 199 | no_thread_suspension_++; |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 200 | last_no_thread_suspension_cause_ = cause; |
| 201 | return previous_cause; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 202 | } |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 203 | #else |
| 204 | const char* StartAssertNoThreadSuspension(const char* cause) { |
| 205 | CHECK(cause != NULL); |
| 206 | return NULL; |
| 207 | } |
| 208 | #endif |
| 209 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 210 | // End region where no thread suspension is expected. |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 211 | #ifndef NDEBUG |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 212 | void EndAssertNoThreadSuspension(const char* old_cause) { |
| 213 | CHECK(old_cause != NULL || no_thread_suspension_ == 1); |
| 214 | CHECK_GT(no_thread_suspension_, 0U); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 215 | no_thread_suspension_--; |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 216 | last_no_thread_suspension_cause_ = old_cause; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 217 | } |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 218 | #else |
| 219 | void EndAssertNoThreadSuspension(const char*) { |
| 220 | } |
| 221 | #endif |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 222 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 223 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 224 | void AssertThreadSuspensionIsAllowable(bool check_locks = true) const; |
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 | bool IsDaemon() const { |
| 227 | return daemon_; |
| 228 | } |
| 229 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 230 | bool HoldsLock(mirror::Object*); |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 231 | |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 232 | /* |
| 233 | * Changes the priority of this thread to match that of the java.lang.Thread object. |
| 234 | * |
| 235 | * We map a priority value from 1-10 to Linux "nice" values, where lower |
| 236 | * numbers indicate higher priority. |
| 237 | */ |
| 238 | void SetNativePriority(int newPriority); |
| 239 | |
| 240 | /* |
| 241 | * Returns the thread priority for the current thread by querying the system. |
| 242 | * This is useful when attaching a thread through JNI. |
| 243 | * |
| 244 | * Returns a value from 1 to 10 (compatible with java.lang.Thread values). |
| 245 | */ |
| 246 | static int GetNativePriority(); |
| 247 | |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 248 | uint32_t GetThinLockId() const { |
| 249 | return thin_lock_id_; |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 250 | } |
| 251 | |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 252 | pid_t GetTid() const { |
| 253 | return tid_; |
| 254 | } |
Elliott Hughes | e27955c | 2011-08-26 15:21:24 -0700 | [diff] [blame] | 255 | |
Elliott Hughes | ffb465f | 2012-03-01 18:46:05 -0800 | [diff] [blame] | 256 | // 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] | 257 | mirror::String* GetThreadName(const ScopedObjectAccessUnchecked& ts) const |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 258 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 899e789 | 2012-01-24 14:57:32 -0800 | [diff] [blame] | 259 | |
Elliott Hughes | ffb465f | 2012-03-01 18:46:05 -0800 | [diff] [blame] | 260 | // Sets 'name' to the java.lang.Thread's name. This requires no transition to managed code, |
| 261 | // allocation, or locking. |
| 262 | void GetThreadName(std::string& name) const; |
| 263 | |
Elliott Hughes | 899e789 | 2012-01-24 14:57:32 -0800 | [diff] [blame] | 264 | // Sets the thread's name. |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 265 | void SetThreadName(const char* name) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | fc86162 | 2011-10-17 17:57:47 -0700 | [diff] [blame] | 266 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 267 | mirror::Object* GetPeer() const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 268 | CHECK(jpeer_ == NULL); |
| 269 | return opeer_; |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 270 | } |
| 271 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 272 | bool HasPeer() const { |
Elliott Hughes | 80537bb | 2013-01-04 16:37:26 -0800 | [diff] [blame] | 273 | return jpeer_ != NULL || opeer_ != NULL; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 274 | } |
| 275 | |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 276 | RuntimeStats* GetStats() { |
| 277 | return &stats_; |
| 278 | } |
| 279 | |
Elliott Hughes | 7dc5166 | 2012-05-16 14:48:43 -0700 | [diff] [blame] | 280 | bool IsStillStarting() const; |
| 281 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 282 | bool IsExceptionPending() const { |
jeffhao | 1eab958 | 2013-01-22 13:33:52 -0800 | [diff] [blame] | 283 | return exception_ != NULL; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 284 | } |
| 285 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 286 | mirror::Throwable* GetException(ThrowLocation* throw_location) const |
| 287 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 288 | if (throw_location != NULL) { |
| 289 | *throw_location = throw_location_; |
| 290 | } |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 291 | return exception_; |
| 292 | } |
| 293 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 294 | void AssertNoPendingException() const; |
| 295 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 296 | void SetException(const ThrowLocation& throw_location, mirror::Throwable* new_exception) |
| 297 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 298 | CHECK(new_exception != NULL); |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 299 | // TODO: DCHECK(!IsExceptionPending()); |
| 300 | exception_ = new_exception; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 301 | throw_location_ = throw_location; |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 302 | } |
| 303 | |
| 304 | void ClearException() { |
| 305 | exception_ = NULL; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 306 | throw_location_.Clear(); |
jeffhao | 94d6df4 | 2012-11-26 16:02:12 -0800 | [diff] [blame] | 307 | } |
| 308 | |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 309 | // Find catch block and perform long jump to appropriate exception handle |
jeffhao | 94d6df4 | 2012-11-26 16:02:12 -0800 | [diff] [blame] | 310 | void QuickDeliverException() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 311 | |
| 312 | Context* GetLongJumpContext(); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 313 | void ReleaseLongJumpContext(Context* context) { |
| 314 | DCHECK(long_jump_context_ == NULL); |
| 315 | long_jump_context_ = context; |
Shih-wei Liao | 1a18c8c | 2011-08-14 17:47:36 -0700 | [diff] [blame] | 316 | } |
| 317 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 318 | mirror::AbstractMethod* GetCurrentMethod(uint32_t* dex_pc) const |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 319 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 320 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 321 | ThrowLocation GetCurrentLocationForThrow() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| 322 | |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 323 | void SetTopOfStack(void* stack, uintptr_t pc) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 324 | mirror::AbstractMethod** top_method = reinterpret_cast<mirror::AbstractMethod**>(stack); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 325 | managed_stack_.SetTopQuickFrame(top_method); |
| 326 | managed_stack_.SetTopQuickFramePc(pc); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 327 | } |
| 328 | |
Jeff Hao | 11ffc2d | 2013-02-01 11:52:17 -0800 | [diff] [blame] | 329 | void SetTopOfShadowStack(ShadowFrame* top) { |
| 330 | managed_stack_.SetTopShadowFrame(top); |
| 331 | } |
| 332 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 333 | bool HasManagedStack() const { |
| 334 | return managed_stack_.GetTopQuickFrame() != NULL || managed_stack_.GetTopShadowFrame() != NULL; |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 335 | } |
| 336 | |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 337 | // If 'msg' is NULL, no detail message is set. |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 338 | void ThrowNewException(const ThrowLocation& throw_location, |
| 339 | const char* exception_class_descriptor, const char* msg) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 340 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 5cb5ad2 | 2011-10-02 12:13:39 -0700 | [diff] [blame] | 341 | |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 342 | // If 'msg' is NULL, no detail message is set. An exception must be pending, and will be |
| 343 | // used as the new exception's cause. |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 344 | void ThrowNewWrappedException(const ThrowLocation& throw_location, |
| 345 | const char* exception_class_descriptor, |
| 346 | const char* msg) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 347 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 348 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 349 | void ThrowNewExceptionF(const ThrowLocation& throw_location, |
| 350 | const char* exception_class_descriptor, const char* fmt, ...) |
| 351 | __attribute__((format(printf, 4, 5))) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 352 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | a5b897e | 2011-08-16 11:33:06 -0700 | [diff] [blame] | 353 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 354 | void ThrowNewExceptionV(const ThrowLocation& throw_location, |
| 355 | const char* exception_class_descriptor, const char* fmt, va_list ap) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 356 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 357 | |
Elliott Hughes | 2ced6a5 | 2011-10-16 18:44:48 -0700 | [diff] [blame] | 358 | // OutOfMemoryError is special, because we need to pre-allocate an instance. |
Elliott Hughes | 8a8b9cb | 2012-04-13 18:29:22 -0700 | [diff] [blame] | 359 | // Only the GC should call this. |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 360 | void ThrowOutOfMemoryError(const char* msg) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 79082e3 | 2011-08-25 12:07:32 -0700 | [diff] [blame] | 361 | |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 362 | static void Startup(); |
Elliott Hughes | 038a806 | 2011-09-18 14:12:41 -0700 | [diff] [blame] | 363 | static void FinishStartup(); |
Elliott Hughes | c1674ed | 2011-08-25 18:09:09 -0700 | [diff] [blame] | 364 | static void Shutdown(); |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 365 | |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 366 | // JNI methods |
Elliott Hughes | 69f5bc6 | 2011-08-24 09:26:14 -0700 | [diff] [blame] | 367 | JNIEnvExt* GetJniEnv() const { |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 368 | return jni_env_; |
| 369 | } |
| 370 | |
Ian Rogers | 408f79a | 2011-08-23 18:22:33 -0700 | [diff] [blame] | 371 | // Convert a jobject into a Object* |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 372 | mirror::Object* DecodeJObject(jobject obj) const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 373 | |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 374 | // Implements java.lang.Thread.interrupted. |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 375 | bool Interrupted(); |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 376 | // Implements java.lang.Thread.isInterrupted. |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 377 | bool IsInterrupted(); |
| 378 | void Interrupt(); |
| 379 | void Notify(); |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 380 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 381 | mirror::ClassLoader* GetClassLoaderOverride() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
buzbee | c143c55 | 2011-08-20 17:38:58 -0700 | [diff] [blame] | 382 | return class_loader_override_; |
| 383 | } |
| 384 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 385 | void SetClassLoaderOverride(mirror::ClassLoader* class_loader_override) { |
buzbee | c143c55 | 2011-08-20 17:38:58 -0700 | [diff] [blame] | 386 | class_loader_override_ = class_loader_override; |
| 387 | } |
| 388 | |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 389 | // Create the internal representation of a stack trace, that is more time |
| 390 | // and space efficient to compute than the StackTraceElement[] |
Ian Rogers | 64b6d14 | 2012-10-29 16:34:15 -0700 | [diff] [blame] | 391 | jobject CreateInternalStackTrace(const ScopedObjectAccessUnchecked& soa) const |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 392 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 393 | |
Elliott Hughes | 01158d7 | 2011-09-19 19:47:10 -0700 | [diff] [blame] | 394 | // Convert an internal stack trace representation (returned by CreateInternalStackTrace) to a |
| 395 | // StackTraceElement[]. If output_array is NULL, a new array is created, otherwise as many |
| 396 | // frames as will fit are written into the given array. If stack_depth is non-NULL, it's updated |
| 397 | // with the number of valid frames in the returned array. |
| 398 | static jobjectArray InternalStackTraceToStackTraceElementArray(JNIEnv* env, jobject internal, |
| 399 | jobjectArray output_array = NULL, int* stack_depth = NULL); |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 400 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 401 | void VisitRoots(RootVisitor* visitor, void* arg) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 410c0c8 | 2011-09-01 17:58:25 -0700 | [diff] [blame] | 402 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 403 | void VerifyRoots(VerifyRootVisitor* visitor, void* arg) |
Mathieu Chartier | 6f1c949 | 2012-10-15 12:08:41 -0700 | [diff] [blame] | 404 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| 405 | |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 406 | void VerifyStack() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
jeffhao | 2504552 | 2012-03-13 19:34:37 -0700 | [diff] [blame] | 407 | |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 408 | // |
| 409 | // Offsets of various members of native Thread class, used by compiled code. |
| 410 | // |
| 411 | |
| 412 | static ThreadOffset SelfOffset() { |
| 413 | return ThreadOffset(OFFSETOF_MEMBER(Thread, self_)); |
| 414 | } |
| 415 | |
| 416 | static ThreadOffset ExceptionOffset() { |
| 417 | return ThreadOffset(OFFSETOF_MEMBER(Thread, exception_)); |
| 418 | } |
| 419 | |
Ian Rogers | 07ec8e1 | 2012-12-01 01:26:51 -0800 | [diff] [blame] | 420 | static ThreadOffset PeerOffset() { |
| 421 | return ThreadOffset(OFFSETOF_MEMBER(Thread, opeer_)); |
| 422 | } |
| 423 | |
Elliott Hughes | 54e7df1 | 2011-09-16 11:47:04 -0700 | [diff] [blame] | 424 | static ThreadOffset ThinLockIdOffset() { |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 425 | return ThreadOffset(OFFSETOF_MEMBER(Thread, thin_lock_id_)); |
| 426 | } |
| 427 | |
| 428 | static ThreadOffset CardTableOffset() { |
| 429 | return ThreadOffset(OFFSETOF_MEMBER(Thread, card_table_)); |
| 430 | } |
| 431 | |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 432 | static ThreadOffset ThreadFlagsOffset() { |
| 433 | return ThreadOffset(OFFSETOF_MEMBER(Thread, state_and_flags_)); |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 434 | } |
| 435 | |
Ian Rogers | 932746a | 2011-09-22 18:57:50 -0700 | [diff] [blame] | 436 | // Size of stack less any space reserved for stack overflow |
jeffhao | d752132 | 2012-11-21 15:38:24 -0800 | [diff] [blame] | 437 | size_t GetStackSize() const { |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 438 | return stack_size_ - (stack_end_ - stack_begin_); |
Ian Rogers | 932746a | 2011-09-22 18:57:50 -0700 | [diff] [blame] | 439 | } |
| 440 | |
jeffhao | d752132 | 2012-11-21 15:38:24 -0800 | [diff] [blame] | 441 | byte* GetStackEnd() const { |
| 442 | return stack_end_; |
| 443 | } |
| 444 | |
Ian Rogers | 932746a | 2011-09-22 18:57:50 -0700 | [diff] [blame] | 445 | // 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] | 446 | void SetStackEndForStackOverflow() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | 932746a | 2011-09-22 18:57:50 -0700 | [diff] [blame] | 447 | |
| 448 | // Set the stack end to that to be used during regular execution |
| 449 | void ResetDefaultStackEnd() { |
| 450 | // Our stacks grow down, so we want stack_end_ to be near there, but reserving enough room |
| 451 | // to throw a StackOverflowError. |
Ian Rogers | 30fab40 | 2012-01-23 15:43:46 -0800 | [diff] [blame] | 452 | stack_end_ = stack_begin_ + kStackOverflowReservedBytes; |
Ian Rogers | 932746a | 2011-09-22 18:57:50 -0700 | [diff] [blame] | 453 | } |
| 454 | |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 455 | bool IsHandlingStackOverflow() const { |
| 456 | return stack_end_ == stack_begin_; |
| 457 | } |
| 458 | |
Elliott Hughes | 449b4bd | 2011-09-09 12:01:38 -0700 | [diff] [blame] | 459 | static ThreadOffset StackEndOffset() { |
| 460 | return ThreadOffset(OFFSETOF_MEMBER(Thread, stack_end_)); |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 461 | } |
| 462 | |
| 463 | static ThreadOffset JniEnvOffset() { |
| 464 | return ThreadOffset(OFFSETOF_MEMBER(Thread, jni_env_)); |
| 465 | } |
| 466 | |
| 467 | static ThreadOffset TopOfManagedStackOffset() { |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 468 | return ThreadOffset(OFFSETOF_MEMBER(Thread, managed_stack_) + |
| 469 | ManagedStack::TopQuickFrameOffset()); |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 470 | } |
| 471 | |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 472 | static ThreadOffset TopOfManagedStackPcOffset() { |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 473 | return ThreadOffset(OFFSETOF_MEMBER(Thread, managed_stack_) + |
| 474 | ManagedStack::TopQuickFramePcOffset()); |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 475 | } |
| 476 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 477 | const ManagedStack* GetManagedStack() const { |
| 478 | return &managed_stack_; |
| 479 | } |
| 480 | |
| 481 | // Linked list recording fragments of managed stack. |
| 482 | void PushManagedStackFragment(ManagedStack* fragment) { |
| 483 | managed_stack_.PushManagedStackFragment(fragment); |
| 484 | } |
| 485 | void PopManagedStackFragment(const ManagedStack& fragment) { |
| 486 | managed_stack_.PopManagedStackFragment(fragment); |
| 487 | } |
| 488 | |
| 489 | ShadowFrame* PushShadowFrame(ShadowFrame* new_top_frame) { |
| 490 | return managed_stack_.PushShadowFrame(new_top_frame); |
TDYa127 | de479be | 2012-05-31 08:03:26 -0700 | [diff] [blame] | 491 | } |
| 492 | |
| 493 | ShadowFrame* PopShadowFrame() { |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 494 | return managed_stack_.PopShadowFrame(); |
TDYa127 | de479be | 2012-05-31 08:03:26 -0700 | [diff] [blame] | 495 | } |
Logan Chien | f7ad17e | 2012-03-15 03:10:03 +0800 | [diff] [blame] | 496 | |
TDYa127 | d668a06 | 2012-04-13 12:36:57 -0700 | [diff] [blame] | 497 | static ThreadOffset TopShadowFrameOffset() { |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 498 | return ThreadOffset(OFFSETOF_MEMBER(Thread, managed_stack_) + |
| 499 | ManagedStack::TopShadowFrameOffset()); |
TDYa127 | d668a06 | 2012-04-13 12:36:57 -0700 | [diff] [blame] | 500 | } |
| 501 | |
TDYa127 | ce4cc0d | 2012-11-18 16:59:53 -0800 | [diff] [blame] | 502 | // Number of references allocated in JNI ShadowFrames on this thread |
| 503 | size_t NumJniShadowFrameReferences() const { |
| 504 | return managed_stack_.NumJniShadowFrameReferences(); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 505 | } |
| 506 | |
| 507 | // Number of references in SIRTs on this thread |
| 508 | size_t NumSirtReferences(); |
| 509 | |
TDYa127 | ce4cc0d | 2012-11-18 16:59:53 -0800 | [diff] [blame] | 510 | // Number of references allocated in SIRTs & JNI shadow frames on this thread |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 511 | size_t NumStackReferences() { |
TDYa127 | ce4cc0d | 2012-11-18 16:59:53 -0800 | [diff] [blame] | 512 | return NumSirtReferences() + NumJniShadowFrameReferences(); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 513 | }; |
| 514 | |
| 515 | // Is the given obj in this thread's stack indirect reference table? |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 516 | bool SirtContains(jobject obj) const; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 517 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 518 | void SirtVisitRoots(RootVisitor* visitor, void* arg); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 519 | |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 520 | void PushSirt(StackIndirectReferenceTable* sirt) { |
| 521 | sirt->SetLink(top_sirt_); |
| 522 | top_sirt_ = sirt; |
| 523 | } |
| 524 | |
| 525 | StackIndirectReferenceTable* PopSirt() { |
| 526 | StackIndirectReferenceTable* sirt = top_sirt_; |
| 527 | DCHECK(sirt != NULL); |
| 528 | top_sirt_ = top_sirt_->GetLink(); |
| 529 | return sirt; |
| 530 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 531 | |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 532 | static ThreadOffset TopSirtOffset() { |
| 533 | return ThreadOffset(OFFSETOF_MEMBER(Thread, top_sirt_)); |
| 534 | } |
| 535 | |
Elliott Hughes | 475fc23 | 2011-10-25 15:00:35 -0700 | [diff] [blame] | 536 | DebugInvokeReq* GetInvokeReq() { |
| 537 | return debug_invoke_req_; |
| 538 | } |
| 539 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 540 | void SetDeoptimizationShadowFrame(ShadowFrame* sf); |
| 541 | void SetDeoptimizationReturnValue(const JValue& ret_val); |
Ian Rogers | 306057f | 2012-11-26 12:45:53 -0800 | [diff] [blame] | 542 | |
| 543 | ShadowFrame* GetAndClearDeoptimizationShadowFrame(JValue* ret_val); |
| 544 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 545 | std::deque<instrumentation::InstrumentationStackFrame>* GetInstrumentationStack() { |
jeffhao | 725a957 | 2012-11-13 18:20:12 -0800 | [diff] [blame] | 546 | return instrumentation_stack_; |
jeffhao | e343b76 | 2011-12-05 16:36:44 -0800 | [diff] [blame] | 547 | } |
| 548 | |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 549 | BaseMutex* GetHeldMutex(LockLevel level) const { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 550 | return held_mutexes_[level]; |
| 551 | } |
| 552 | |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 553 | void SetHeldMutex(LockLevel level, BaseMutex* mutex) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 554 | held_mutexes_[level] = mutex; |
| 555 | } |
Elliott Hughes | ffb465f | 2012-03-01 18:46:05 -0800 | [diff] [blame] | 556 | |
Mathieu Chartier | 858f1c5 | 2012-10-17 17:45:55 -0700 | [diff] [blame] | 557 | void RunCheckpointFunction() { |
| 558 | CHECK(checkpoint_function_ != NULL); |
| 559 | checkpoint_function_->Run(this); |
| 560 | } |
| 561 | |
| 562 | bool ReadFlag(ThreadFlag flag) const { |
| 563 | return (state_and_flags_.as_struct.flags & flag) != 0; |
| 564 | } |
| 565 | |
| 566 | void AtomicSetFlag(ThreadFlag flag); |
| 567 | |
| 568 | void AtomicClearFlag(ThreadFlag flag); |
| 569 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 570 | private: |
Elliott Hughes | 5d96a71 | 2012-06-28 12:24:27 -0700 | [diff] [blame] | 571 | // We have no control over the size of 'bool', but want our boolean fields |
| 572 | // to be 4-byte quantities. |
| 573 | typedef uint32_t bool32_t; |
| 574 | |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 575 | explicit Thread(bool daemon); |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 576 | ~Thread() LOCKS_EXCLUDED(Locks::mutator_lock_, |
| 577 | Locks::thread_suspend_count_lock_); |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 578 | void Destroy(); |
| 579 | friend class ThreadList; // For ~Thread and Destroy. |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 580 | |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 581 | void CreatePeer(const char* name, bool as_daemon, jobject thread_group); |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 582 | friend class Runtime; // For CreatePeer. |
| 583 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 584 | // Avoid use, callers should use SetState. Used only by SignalCatcher::HandleSigQuit, ~Thread and |
| 585 | // Dbg::Disconnected. |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 586 | ThreadState SetStateUnsafe(ThreadState new_state) { |
| 587 | ThreadState old_state = GetState(); |
Ian Rogers | 30e173f | 2012-09-26 14:35:03 -0700 | [diff] [blame] | 588 | state_and_flags_.as_struct.state = new_state; |
Ian Rogers | c747cff | 2012-08-31 18:20:08 -0700 | [diff] [blame] | 589 | return old_state; |
| 590 | } |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 591 | friend class SignalCatcher; // For SetStateUnsafe. |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 592 | friend class Dbg; // For SetStateUnsafe. |
Ian Rogers | c747cff | 2012-08-31 18:20:08 -0700 | [diff] [blame] | 593 | |
Ian Rogers | 04d7aa9 | 2013-03-16 14:29:17 -0700 | [diff] [blame] | 594 | void VerifyStackImpl() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| 595 | |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 596 | void DumpState(std::ostream& os) const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 597 | void DumpStack(std::ostream& os) const |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 598 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) |
| 599 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 600 | |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 601 | // Out-of-line conveniences for debugging in gdb. |
Elliott Hughes | 498508c | 2011-10-17 14:58:22 -0700 | [diff] [blame] | 602 | static Thread* CurrentFromGdb(); // Like Thread::Current. |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 603 | // Like Thread::Dump(std::cerr). |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 604 | void DumpFromGdb() const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 605 | |
Elliott Hughes | 93e74e8 | 2011-09-13 11:07:03 -0700 | [diff] [blame] | 606 | static void* CreateCallback(void* arg); |
| 607 | |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 608 | void HandleUncaughtExceptions(ScopedObjectAccess& soa) |
| 609 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| 610 | void RemoveFromThreadGroup(ScopedObjectAccess& soa) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 611 | |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 612 | void Init(ThreadList*, JavaVMExt*) EXCLUSIVE_LOCKS_REQUIRED(Locks::runtime_shutdown_lock_); |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 613 | void InitCardTable(); |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 614 | void InitCpu(); |
buzbee | 3ea4ec5 | 2011-08-22 17:37:19 -0700 | [diff] [blame] | 615 | void InitFunctionPointers(); |
Brian Carlstrom | caabb1b | 2011-10-11 18:09:13 -0700 | [diff] [blame] | 616 | void InitTid(); |
Brian Carlstrom | caabb1b | 2011-10-11 18:09:13 -0700 | [diff] [blame] | 617 | void InitPthreadKeySelf(); |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 618 | void InitStackHwm(); |
| 619 | |
Ian Rogers | c604d73 | 2012-10-14 16:09:54 -0700 | [diff] [blame] | 620 | void NotifyLocked(Thread* self) EXCLUSIVE_LOCKS_REQUIRED(wait_mutex_); |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 621 | |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 622 | static void ThreadExitCallback(void* arg); |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 623 | |
Ian Rogers | 0878d65 | 2013-04-18 17:38:35 -0700 | [diff] [blame^] | 624 | // Has Thread::Startup been called? |
| 625 | static bool is_started_; |
| 626 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 627 | // TLS key used to retrieve the Thread*. |
| 628 | static pthread_key_t pthread_key_self_; |
| 629 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 630 | // Used to notify threads that they should attempt to resume, they will suspend again if |
| 631 | // their suspend count is > 0. |
Ian Rogers | c604d73 | 2012-10-14 16:09:54 -0700 | [diff] [blame] | 632 | static ConditionVariable* resume_cond_ GUARDED_BY(Locks::thread_suspend_count_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 633 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 634 | // --- Frequently accessed fields first for short offsets --- |
| 635 | |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 636 | // 32 bits of atomically changed state and flags. Keeping as 32 bits allows and atomic CAS to |
| 637 | // change from being Suspended to Runnable without a suspend request occurring. |
Ian Rogers | 30e173f | 2012-09-26 14:35:03 -0700 | [diff] [blame] | 638 | union StateAndFlags { |
Ian Rogers | df1ce91 | 2012-11-27 17:07:11 -0800 | [diff] [blame] | 639 | struct PACKED(4) { |
Ian Rogers | 30e173f | 2012-09-26 14:35:03 -0700 | [diff] [blame] | 640 | // Bitfield of flag values. Must be changed atomically so that flag values aren't lost. See |
| 641 | // ThreadFlags for bit field meanings. |
| 642 | volatile uint16_t flags; |
| 643 | // Holds the ThreadState. May be changed non-atomically between Suspended (ie not Runnable) |
| 644 | // transitions. Changing to Runnable requires that the suspend_request be part of the atomic |
| 645 | // operation. If a thread is suspended and a suspend_request is present, a thread may not |
| 646 | // change to Runnable as a GC or other operation is in progress. |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 647 | volatile uint16_t state; |
Ian Rogers | 30e173f | 2012-09-26 14:35:03 -0700 | [diff] [blame] | 648 | } as_struct; |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 649 | volatile int32_t as_int; |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 650 | }; |
Ian Rogers | 30e173f | 2012-09-26 14:35:03 -0700 | [diff] [blame] | 651 | union StateAndFlags state_and_flags_; |
| 652 | COMPILE_ASSERT(sizeof(union StateAndFlags) == sizeof(int32_t), |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 653 | sizeof_state_and_flags_and_int32_are_different); |
| 654 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 655 | // A non-zero value is used to tell the current thread to enter a safe point |
| 656 | // at the next poll. |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 657 | int suspend_count_ GUARDED_BY(Locks::thread_suspend_count_lock_); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 658 | |
| 659 | // The biased card table, see CardTable for details |
| 660 | byte* card_table_; |
| 661 | |
| 662 | // The pending exception or NULL. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 663 | mirror::Throwable* exception_; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 664 | |
| 665 | // The end of this thread's stack. This is the lowest safely-addressable address on the stack. |
| 666 | // We leave extra space so there's room for the code that throws StackOverflowError. |
| 667 | byte* stack_end_; |
| 668 | |
| 669 | // The top of the managed stack often manipulated directly by compiler generated code. |
| 670 | ManagedStack managed_stack_; |
| 671 | |
| 672 | // Every thread may have an associated JNI environment |
| 673 | JNIEnvExt* jni_env_; |
| 674 | |
| 675 | // Initialized to "this". On certain architectures (such as x86) reading |
| 676 | // off of Thread::Current is easy but getting the address of Thread::Current |
| 677 | // is hard. This field can be read off of Thread::Current to give the address. |
| 678 | Thread* self_; |
| 679 | |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 680 | // Our managed peer (an instance of java.lang.Thread). The jobject version is used during thread |
| 681 | // 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] | 682 | mirror::Object* opeer_; |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 683 | jobject jpeer_; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 684 | |
| 685 | // The "lowest addressable byte" of the stack |
| 686 | byte* stack_begin_; |
| 687 | |
| 688 | // Size of the stack |
| 689 | size_t stack_size_; |
| 690 | |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 691 | // Thin lock thread id. This is a small integer used by the thin lock implementation. |
| 692 | // This is not to be confused with the native thread's tid, nor is it the value returned |
| 693 | // by java.lang.Thread.getId --- this is a distinct value, used only for locking. One |
| 694 | // important difference between this id and the ids visible to managed code is that these |
| 695 | // ones get reused (to ensure that they fit in the number of bits available). |
| 696 | uint32_t thin_lock_id_; |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 697 | |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 698 | // System thread id. |
| 699 | pid_t tid_; |
| 700 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 701 | ThrowLocation throw_location_; |
| 702 | |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 703 | // Guards the 'interrupted_' and 'wait_monitor_' members. |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 704 | mutable Mutex* wait_mutex_ DEFAULT_MUTEX_ACQUIRED_AFTER; |
| 705 | ConditionVariable* wait_cond_ GUARDED_BY(wait_mutex_); |
| 706 | // Pointer to the monitor lock we're currently waiting on (or NULL). |
| 707 | Monitor* wait_monitor_ GUARDED_BY(wait_mutex_); |
| 708 | // Thread "interrupted" status; stays raised until queried or thrown. |
| 709 | bool32_t interrupted_ GUARDED_BY(wait_mutex_); |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 710 | // The next thread in the wait set this thread is part of. |
| 711 | Thread* wait_next_; |
Elliott Hughes | 8e4aac5 | 2011-09-26 17:03:36 -0700 | [diff] [blame] | 712 | // 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] | 713 | mirror::Object* monitor_enter_object_; |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 714 | |
| 715 | friend class Monitor; |
Elliott Hughes | f327e07 | 2013-01-09 16:01:26 -0800 | [diff] [blame] | 716 | friend class MonitorInfo; |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 717 | |
Ian Rogers | 408f79a | 2011-08-23 18:22:33 -0700 | [diff] [blame] | 718 | // Top of linked list of stack indirect reference tables or NULL for none |
| 719 | StackIndirectReferenceTable* top_sirt_; |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 720 | |
Carl Shapiro | 69759ea | 2011-07-21 18:13:35 -0700 | [diff] [blame] | 721 | Runtime* runtime_; |
| 722 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 723 | RuntimeStats stats_; |
Ian Rogers | 45a76cb | 2011-07-21 22:00:15 -0700 | [diff] [blame] | 724 | |
Elliott Hughes | edcc09c | 2011-08-21 18:47:05 -0700 | [diff] [blame] | 725 | // Needed to get the right ClassLoader in JNI_OnLoad, but also |
| 726 | // useful for testing. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 727 | mirror::ClassLoader* class_loader_override_; |
buzbee | c143c55 | 2011-08-20 17:38:58 -0700 | [diff] [blame] | 728 | |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 729 | // Thread local, lazily allocated, long jump context. Used to deliver exceptions. |
Elliott Hughes | 85d1545 | 2011-09-16 17:33:01 -0700 | [diff] [blame] | 730 | Context* long_jump_context_; |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 731 | |
Elliott Hughes | 418dfe7 | 2011-10-06 18:56:27 -0700 | [diff] [blame] | 732 | // A boolean telling us whether we're recursively throwing OOME. |
Elliott Hughes | 5d96a71 | 2012-06-28 12:24:27 -0700 | [diff] [blame] | 733 | bool32_t throwing_OutOfMemoryError_; |
Elliott Hughes | 726079d | 2011-10-07 18:43:44 -0700 | [diff] [blame] | 734 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 735 | // How much of 'suspend_count_' is by request of the debugger, used to set things right |
| 736 | // when the debugger detaches. Must be <= suspend_count_. |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 737 | int debug_suspend_count_ GUARDED_BY(Locks::thread_suspend_count_lock_); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 738 | |
Elliott Hughes | 475fc23 | 2011-10-25 15:00:35 -0700 | [diff] [blame] | 739 | // JDWP invoke-during-breakpoint support. |
| 740 | DebugInvokeReq* debug_invoke_req_; |
| 741 | |
Ian Rogers | 306057f | 2012-11-26 12:45:53 -0800 | [diff] [blame] | 742 | // Shadow frame that is used temporarily during the deoptimization of a method. |
| 743 | ShadowFrame* deoptimization_shadow_frame_; |
| 744 | JValue deoptimization_return_value_; |
| 745 | |
jeffhao | 725a957 | 2012-11-13 18:20:12 -0800 | [diff] [blame] | 746 | // 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] | 747 | // Stored as a pointer since std::deque is not PACKED. |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 748 | std::deque<instrumentation::InstrumentationStackFrame>* instrumentation_stack_; |
jeffhao | e343b76 | 2011-12-05 16:36:44 -0800 | [diff] [blame] | 749 | |
Elliott Hughes | 899e789 | 2012-01-24 14:57:32 -0800 | [diff] [blame] | 750 | // A cached copy of the java.lang.Thread's name. |
| 751 | std::string* name_; |
| 752 | |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 753 | // Is the thread a daemon? |
Elliott Hughes | 5d96a71 | 2012-06-28 12:24:27 -0700 | [diff] [blame] | 754 | const bool32_t daemon_; |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 755 | |
Elliott Hughes | 0d39c12 | 2012-06-06 16:41:17 -0700 | [diff] [blame] | 756 | // A cached pthread_t for the pthread underlying this Thread*. |
| 757 | pthread_t pthread_self_; |
| 758 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 759 | // Support for Mutex lock hierarchy bug detection. |
Elliott Hughes | 0f82716 | 2013-02-26 12:12:58 -0800 | [diff] [blame] | 760 | BaseMutex* held_mutexes_[kLockLevelCount]; |
Elliott Hughes | ffb465f | 2012-03-01 18:46:05 -0800 | [diff] [blame] | 761 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 762 | // A positive value implies we're in a region where thread suspension isn't expected. |
| 763 | uint32_t no_thread_suspension_; |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 764 | |
| 765 | // Cause for last suspension. |
| 766 | const char* last_no_thread_suspension_cause_; |
Elliott Hughes | 5d96a71 | 2012-06-28 12:24:27 -0700 | [diff] [blame] | 767 | |
Mathieu Chartier | 858f1c5 | 2012-10-17 17:45:55 -0700 | [diff] [blame] | 768 | // Pending checkpoint functions. |
Mathieu Chartier | 0e4627e | 2012-10-23 16:13:36 -0700 | [diff] [blame] | 769 | Closure* checkpoint_function_; |
Mathieu Chartier | 858f1c5 | 2012-10-17 17:45:55 -0700 | [diff] [blame] | 770 | |
Ian Rogers | a32a6fd | 2012-02-06 20:18:44 -0800 | [diff] [blame] | 771 | public: |
| 772 | // Runtime support function pointers |
Elliott Hughes | 6a607ad | 2012-07-13 20:40:00 -0700 | [diff] [blame] | 773 | // TODO: move this near the top, since changing its offset requires all oats to be recompiled! |
Ian Rogers | 57b86d4 | 2012-03-27 16:05:41 -0700 | [diff] [blame] | 774 | EntryPoints entrypoints_; |
Ian Rogers | a32a6fd | 2012-02-06 20:18:44 -0800 | [diff] [blame] | 775 | |
| 776 | private: |
Elliott Hughes | 6a607ad | 2012-07-13 20:40:00 -0700 | [diff] [blame] | 777 | // How many times has our pthread key's destructor been called? |
| 778 | uint32_t thread_exit_check_count_; |
| 779 | |
Ian Rogers | 22f454c | 2012-09-08 11:06:29 -0700 | [diff] [blame] | 780 | friend class ScopedThreadStateChange; |
| 781 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 782 | DISALLOW_COPY_AND_ASSIGN(Thread); |
| 783 | }; |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 784 | |
Elliott Hughes | 330304d | 2011-08-12 14:28:05 -0700 | [diff] [blame] | 785 | std::ostream& operator<<(std::ostream& os, const Thread& thread); |
Elliott Hughes | 34e0696 | 2012-04-09 13:55:55 -0700 | [diff] [blame] | 786 | std::ostream& operator<<(std::ostream& os, const ThreadState& state); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 787 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 788 | } // namespace art |
| 789 | |
| 790 | #endif // ART_SRC_THREAD_H_ |