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 | |
Elliott Hughes | 02b48d1 | 2011-09-07 17:15:51 -0700 | [diff] [blame] | 20 | #include <bitset> |
Ian Rogers | 306057f | 2012-11-26 12:45:53 -0800 | [diff] [blame] | 21 | #include <deque> |
Elliott Hughes | a095764 | 2011-09-02 14:27:33 -0700 | [diff] [blame] | 22 | #include <iosfwd> |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 23 | #include <list> |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 24 | #include <memory> |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 25 | #include <string> |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 26 | |
Elliott Hughes | 7616005 | 2012-12-12 16:31:20 -0800 | [diff] [blame] | 27 | #include "base/macros.h" |
Ian Rogers | 719d1a3 | 2014-03-06 12:13:39 -0800 | [diff] [blame] | 28 | #include "base/mutex.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" |
Mathieu Chartier | 0651d41 | 2014-04-29 14:37:57 -0700 | [diff] [blame] | 33 | #include "gc/allocator/rosalloc.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 34 | #include "globals.h" |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 35 | #include "handle_scope.h" |
Andreas Gampe | 7cd26f3 | 2014-06-18 17:01:15 -0700 | [diff] [blame] | 36 | #include "instruction_set.h" |
Ian Rogers | 306057f | 2012-11-26 12:45:53 -0800 | [diff] [blame] | 37 | #include "jvalue.h" |
Mathieu Chartier | 83c8ee0 | 2014-01-28 14:50:23 -0800 | [diff] [blame] | 38 | #include "object_callbacks.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 39 | #include "offsets.h" |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 40 | #include "runtime_stats.h" |
Elliott Hughes | 68e7652 | 2011-10-05 13:22:16 -0700 | [diff] [blame] | 41 | #include "stack.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 42 | #include "thread_state.h" |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 43 | #include "throw_location.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 | |
Mathieu Chartier | 15d3402 | 2014-02-26 17:16:38 -0800 | [diff] [blame] | 47 | namespace gc { |
| 48 | namespace collector { |
| 49 | class SemiSpace; |
| 50 | } // namespace collector |
| 51 | } // namespace gc |
| 52 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 53 | namespace mirror { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 54 | class ArtMethod; |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 55 | class Array; |
| 56 | class Class; |
| 57 | class ClassLoader; |
| 58 | class Object; |
| 59 | template<class T> class ObjectArray; |
| 60 | template<class T> class PrimitiveArray; |
| 61 | typedef PrimitiveArray<int32_t> IntArray; |
| 62 | class StackTraceElement; |
| 63 | class StaticStorageBase; |
| 64 | class Throwable; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 65 | } // namespace mirror |
| 66 | class BaseMutex; |
| 67 | class ClassLinker; |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 68 | class Closure; |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 69 | class Context; |
Ian Rogers | 1b09b09 | 2012-08-20 15:35:52 -0700 | [diff] [blame] | 70 | struct DebugInvokeReq; |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 71 | class DexFile; |
Ian Rogers | b48b9eb | 2014-02-28 16:20:21 -0800 | [diff] [blame] | 72 | class JavaVMExt; |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 73 | struct JNIEnvExt; |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 74 | class Monitor; |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 75 | class Runtime; |
Mathieu Chartier | 2b7c4d1 | 2014-05-19 10:52:16 -0700 | [diff] [blame] | 76 | class ScopedObjectAccessAlreadyRunnable; |
Logan Chien | f7ad17e | 2012-03-15 03:10:03 +0800 | [diff] [blame] | 77 | class ShadowFrame; |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 78 | struct SingleStepControl; |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 79 | class Thread; |
| 80 | class ThreadList; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 81 | |
Elliott Hughes | 34e0696 | 2012-04-09 13:55:55 -0700 | [diff] [blame] | 82 | // Thread priorities. These must match the Thread.MIN_PRIORITY, |
| 83 | // Thread.NORM_PRIORITY, and Thread.MAX_PRIORITY constants. |
| 84 | enum ThreadPriority { |
| 85 | kMinThreadPriority = 1, |
| 86 | kNormThreadPriority = 5, |
| 87 | kMaxThreadPriority = 10, |
| 88 | }; |
| 89 | |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 90 | enum ThreadFlag { |
Ian Rogers | 50ffee2 | 2012-11-20 11:47:44 -0800 | [diff] [blame] | 91 | kSuspendRequest = 1, // If set implies that suspend_count_ > 0 and the Thread should enter the |
| 92 | // safepoint handler. |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 93 | 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] | 94 | }; |
| 95 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 96 | class Thread { |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 97 | public: |
Mathieu Chartier | 0d507d1 | 2014-03-19 10:17:28 -0700 | [diff] [blame] | 98 | // How much of the reserved bytes is reserved for incoming signals. |
| 99 | static constexpr size_t kStackOverflowSignalReservedBytes = 2 * KB; |
buzbee | c143c55 | 2011-08-20 17:38:58 -0700 | [diff] [blame] | 100 | |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 101 | // For implicit overflow checks we reserve an extra piece of memory at the bottom |
| 102 | // of the stack (lowest memory). The higher portion of the memory |
| 103 | // is protected against reads and the lower is available for use while |
| 104 | // throwing the StackOverflow exception. |
Dave Allison | f4b80bc | 2014-05-14 15:41:25 -0700 | [diff] [blame] | 105 | static constexpr size_t kStackOverflowProtectedSize = 16 * KB; |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 106 | static constexpr size_t kStackOverflowImplicitCheckSize = kStackOverflowProtectedSize + |
Andreas Gampe | 7cd26f3 | 2014-06-18 17:01:15 -0700 | [diff] [blame] | 107 | kRuntimeStackOverflowReservedBytes; |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 108 | |
Elliott Hughes | 462c944 | 2012-03-23 18:47:50 -0700 | [diff] [blame] | 109 | // Creates a new native thread corresponding to the given managed peer. |
| 110 | // Used to implement Thread.start. |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 111 | 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] | 112 | |
Elliott Hughes | 462c944 | 2012-03-23 18:47:50 -0700 | [diff] [blame] | 113 | // Attaches the calling native thread to the runtime, returning the new native peer. |
| 114 | // Used to implement JNI AttachCurrentThread and AttachCurrentThreadAsDaemon calls. |
Mathieu Chartier | 664bebf | 2012-11-12 16:54:11 -0800 | [diff] [blame] | 115 | static Thread* Attach(const char* thread_name, bool as_daemon, jobject thread_group, |
| 116 | bool create_peer); |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 117 | |
Brian Carlstrom | caabb1b | 2011-10-11 18:09:13 -0700 | [diff] [blame] | 118 | // Reset internal state of child thread after fork. |
| 119 | void InitAfterFork(); |
| 120 | |
Ian Rogers | 02ed4c0 | 2013-09-06 13:10:04 -0700 | [diff] [blame] | 121 | static Thread* Current(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 122 | |
Mathieu Chartier | 2b7c4d1 | 2014-05-19 10:52:16 -0700 | [diff] [blame] | 123 | static Thread* FromManagedThread(const ScopedObjectAccessAlreadyRunnable& ts, |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 124 | mirror::Object* thread_peer) |
jeffhao | a77f0f6 | 2012-12-05 17:19:31 -0800 | [diff] [blame] | 125 | EXCLUSIVE_LOCKS_REQUIRED(Locks::thread_list_lock_) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 126 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) |
| 127 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Mathieu Chartier | 2b7c4d1 | 2014-05-19 10:52:16 -0700 | [diff] [blame] | 128 | static Thread* FromManagedThread(const ScopedObjectAccessAlreadyRunnable& ts, jobject thread) |
jeffhao | a77f0f6 | 2012-12-05 17:19:31 -0800 | [diff] [blame] | 129 | EXCLUSIVE_LOCKS_REQUIRED(Locks::thread_list_lock_) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 130 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) |
| 131 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 132 | |
Elliott Hughes | 28fa76d | 2012-04-09 17:31:46 -0700 | [diff] [blame] | 133 | // Translates 172 to pAllocArrayFromCode and so on. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 134 | template<size_t size_of_pointers> |
| 135 | static void DumpThreadOffset(std::ostream& os, uint32_t offset); |
Elliott Hughes | 28fa76d | 2012-04-09 17:31:46 -0700 | [diff] [blame] | 136 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 137 | // Dumps a one-line summary of thread state (used for operator<<). |
| 138 | void ShortDump(std::ostream& os) const; |
| 139 | |
| 140 | // Dumps the detailed thread state and the thread stack (used for SIGQUIT). |
| 141 | void Dump(std::ostream& os) const |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 142 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) |
| 143 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | a095764 | 2011-09-02 14:27:33 -0700 | [diff] [blame] | 144 | |
Mathieu Chartier | c751fdc | 2014-03-30 15:25:44 -0700 | [diff] [blame] | 145 | void DumpJavaStack(std::ostream& os) const |
| 146 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) |
| 147 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| 148 | |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 149 | // Dumps the SIGQUIT per-thread header. 'thread' can be NULL for a non-attached thread, in which |
| 150 | // 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] | 151 | static void DumpState(std::ostream& os, const Thread* thread, pid_t tid) |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 152 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) |
| 153 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 154 | |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 155 | ThreadState GetState() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 156 | DCHECK_GE(tls32_.state_and_flags.as_struct.state, kTerminated); |
| 157 | DCHECK_LE(tls32_.state_and_flags.as_struct.state, kSuspended); |
| 158 | return static_cast<ThreadState>(tls32_.state_and_flags.as_struct.state); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 159 | } |
| 160 | |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 161 | ThreadState SetState(ThreadState new_state); |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 162 | |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 163 | int GetSuspendCount() const EXCLUSIVE_LOCKS_REQUIRED(Locks::thread_suspend_count_lock_) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 164 | return tls32_.suspend_count; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 165 | } |
Elliott Hughes | 038a806 | 2011-09-18 14:12:41 -0700 | [diff] [blame] | 166 | |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 167 | int GetDebugSuspendCount() const EXCLUSIVE_LOCKS_REQUIRED(Locks::thread_suspend_count_lock_) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 168 | return tls32_.debug_suspend_count; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 169 | } |
| 170 | |
Mathieu Chartier | 858f1c5 | 2012-10-17 17:45:55 -0700 | [diff] [blame] | 171 | bool IsSuspended() const { |
Chris Dearman | 59cde53 | 2013-12-04 18:53:49 -0800 | [diff] [blame] | 172 | union StateAndFlags state_and_flags; |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 173 | state_and_flags.as_int = tls32_.state_and_flags.as_int; |
Mathieu Chartier | 858f1c5 | 2012-10-17 17:45:55 -0700 | [diff] [blame] | 174 | return state_and_flags.as_struct.state != kRunnable && |
| 175 | (state_and_flags.as_struct.flags & kSuspendRequest) != 0; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 176 | } |
| 177 | |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 178 | void ModifySuspendCount(Thread* self, int delta, bool for_debugger) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 179 | EXCLUSIVE_LOCKS_REQUIRED(Locks::thread_suspend_count_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 180 | |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 181 | bool RequestCheckpoint(Closure* function) |
| 182 | EXCLUSIVE_LOCKS_REQUIRED(Locks::thread_suspend_count_lock_); |
Mathieu Chartier | 858f1c5 | 2012-10-17 17:45:55 -0700 | [diff] [blame] | 183 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 184 | // Called when thread detected that the thread_suspend_count_ was non-zero. Gives up share of |
| 185 | // 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] | 186 | void FullSuspendCheck() |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 187 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) |
| 188 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 189 | |
| 190 | // Transition from non-runnable to runnable state acquiring share on mutator_lock_. |
| 191 | ThreadState TransitionFromSuspendedToRunnable() |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 192 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) |
Ian Rogers | 693ff61 | 2013-02-01 10:56:12 -0800 | [diff] [blame] | 193 | SHARED_LOCK_FUNCTION(Locks::mutator_lock_) |
Ian Rogers | 1ffa32f | 2013-02-05 18:29:08 -0800 | [diff] [blame] | 194 | ALWAYS_INLINE; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 195 | |
| 196 | // Transition from runnable into a state where mutator privileges are denied. Releases share of |
| 197 | // mutator lock. |
| 198 | void TransitionFromRunnableToSuspended(ThreadState new_state) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 199 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) |
Ian Rogers | 693ff61 | 2013-02-01 10:56:12 -0800 | [diff] [blame] | 200 | UNLOCK_FUNCTION(Locks::mutator_lock_) |
Ian Rogers | 1ffa32f | 2013-02-05 18:29:08 -0800 | [diff] [blame] | 201 | ALWAYS_INLINE; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 202 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 203 | // Once called thread suspension will cause an assertion failure. |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 204 | const char* StartAssertNoThreadSuspension(const char* cause) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 205 | if (kIsDebugBuild) { |
| 206 | CHECK(cause != NULL); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 207 | const char* previous_cause = tlsPtr_.last_no_thread_suspension_cause; |
| 208 | tls32_.no_thread_suspension++; |
| 209 | tlsPtr_.last_no_thread_suspension_cause = cause; |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 210 | return previous_cause; |
| 211 | } else { |
| 212 | return nullptr; |
| 213 | } |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 214 | } |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 215 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 216 | // End region where no thread suspension is expected. |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 217 | void EndAssertNoThreadSuspension(const char* old_cause) { |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 218 | if (kIsDebugBuild) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 219 | CHECK(old_cause != nullptr || tls32_.no_thread_suspension == 1); |
| 220 | CHECK_GT(tls32_.no_thread_suspension, 0U); |
| 221 | tls32_.no_thread_suspension--; |
| 222 | tlsPtr_.last_no_thread_suspension_cause = old_cause; |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 223 | } |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 224 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 225 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 226 | void AssertThreadSuspensionIsAllowable(bool check_locks = true) const; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 227 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 228 | bool IsDaemon() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 229 | return tls32_.daemon; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 230 | } |
| 231 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 232 | bool HoldsLock(mirror::Object*) const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 233 | |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 234 | /* |
| 235 | * Changes the priority of this thread to match that of the java.lang.Thread object. |
| 236 | * |
| 237 | * We map a priority value from 1-10 to Linux "nice" values, where lower |
| 238 | * numbers indicate higher priority. |
| 239 | */ |
| 240 | void SetNativePriority(int newPriority); |
| 241 | |
| 242 | /* |
| 243 | * Returns the thread priority for the current thread by querying the system. |
| 244 | * This is useful when attaching a thread through JNI. |
| 245 | * |
| 246 | * Returns a value from 1 to 10 (compatible with java.lang.Thread values). |
| 247 | */ |
| 248 | static int GetNativePriority(); |
| 249 | |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 250 | uint32_t GetThreadId() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 251 | return tls32_.thin_lock_thread_id; |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 252 | } |
| 253 | |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 254 | pid_t GetTid() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 255 | return tls32_.tid; |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 256 | } |
Elliott Hughes | e27955c | 2011-08-26 15:21:24 -0700 | [diff] [blame] | 257 | |
Elliott Hughes | ffb465f | 2012-03-01 18:46:05 -0800 | [diff] [blame] | 258 | // Returns the java.lang.Thread's name, or NULL if this Thread* doesn't have a peer. |
Mathieu Chartier | 2b7c4d1 | 2014-05-19 10:52:16 -0700 | [diff] [blame] | 259 | mirror::String* GetThreadName(const ScopedObjectAccessAlreadyRunnable& ts) const |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 260 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 899e789 | 2012-01-24 14:57:32 -0800 | [diff] [blame] | 261 | |
Elliott Hughes | ffb465f | 2012-03-01 18:46:05 -0800 | [diff] [blame] | 262 | // Sets 'name' to the java.lang.Thread's name. This requires no transition to managed code, |
| 263 | // allocation, or locking. |
| 264 | void GetThreadName(std::string& name) const; |
| 265 | |
Elliott Hughes | 899e789 | 2012-01-24 14:57:32 -0800 | [diff] [blame] | 266 | // Sets the thread's name. |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 267 | void SetThreadName(const char* name) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | fc86162 | 2011-10-17 17:57:47 -0700 | [diff] [blame] | 268 | |
Jeff Hao | 57dac6e | 2013-08-15 16:36:24 -0700 | [diff] [blame] | 269 | // Returns the thread-specific CPU-time clock in microseconds or -1 if unavailable. |
| 270 | uint64_t GetCpuMicroTime() const; |
| 271 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 272 | mirror::Object* GetPeer() const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 273 | CHECK(tlsPtr_.jpeer == nullptr); |
| 274 | return tlsPtr_.opeer; |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 275 | } |
| 276 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 277 | bool HasPeer() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 278 | return tlsPtr_.jpeer != nullptr || tlsPtr_.opeer != nullptr; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 279 | } |
| 280 | |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 281 | RuntimeStats* GetStats() { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 282 | return &tls64_.stats; |
Elliott Hughes | 9d5ccec | 2011-09-19 13:19:50 -0700 | [diff] [blame] | 283 | } |
| 284 | |
Elliott Hughes | 7dc5166 | 2012-05-16 14:48:43 -0700 | [diff] [blame] | 285 | bool IsStillStarting() const; |
| 286 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 287 | bool IsExceptionPending() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 288 | return tlsPtr_.exception != nullptr; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 289 | } |
| 290 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 291 | mirror::Throwable* GetException(ThrowLocation* throw_location) const |
| 292 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 293 | if (throw_location != nullptr) { |
| 294 | *throw_location = tlsPtr_.throw_location; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 295 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 296 | return tlsPtr_.exception; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 297 | } |
| 298 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 299 | void AssertNoPendingException() const; |
Mathieu Chartier | 8d7672e | 2014-02-25 10:57:16 -0800 | [diff] [blame] | 300 | void AssertNoPendingExceptionForNewException(const char* msg) const; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 301 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 302 | void SetException(const ThrowLocation& throw_location, mirror::Throwable* new_exception) |
| 303 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 304 | CHECK(new_exception != NULL); |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 305 | // TODO: DCHECK(!IsExceptionPending()); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 306 | tlsPtr_.exception = new_exception; |
| 307 | tlsPtr_.throw_location = throw_location; |
Ian Rogers | 0cfe1fb | 2011-08-26 03:29:44 -0700 | [diff] [blame] | 308 | } |
| 309 | |
Serguei Katkov | a309d76 | 2014-05-26 11:23:39 +0700 | [diff] [blame] | 310 | void ClearException() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 311 | tlsPtr_.exception = nullptr; |
| 312 | tlsPtr_.throw_location.Clear(); |
Sebastien Hertz | 9f10203 | 2014-05-23 08:59:42 +0200 | [diff] [blame] | 313 | SetExceptionReportedToInstrumentation(false); |
jeffhao | 94d6df4 | 2012-11-26 16:02:12 -0800 | [diff] [blame] | 314 | } |
| 315 | |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 316 | // Find catch block and perform long jump to appropriate exception handle |
jeffhao | 94d6df4 | 2012-11-26 16:02:12 -0800 | [diff] [blame] | 317 | void QuickDeliverException() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 318 | |
| 319 | Context* GetLongJumpContext(); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 320 | void ReleaseLongJumpContext(Context* context) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 321 | DCHECK(tlsPtr_.long_jump_context == nullptr); |
| 322 | tlsPtr_.long_jump_context = context; |
Shih-wei Liao | 1a18c8c | 2011-08-14 17:47:36 -0700 | [diff] [blame] | 323 | } |
| 324 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 325 | mirror::ArtMethod* GetCurrentMethod(uint32_t* dex_pc) const |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 326 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 327 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 328 | ThrowLocation GetCurrentLocationForThrow() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| 329 | |
Andreas Gampe | cf4035a | 2014-05-28 22:43:01 -0700 | [diff] [blame] | 330 | void SetTopOfStack(StackReference<mirror::ArtMethod>* top_method, uintptr_t pc) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 331 | tlsPtr_.managed_stack.SetTopQuickFrame(top_method); |
| 332 | tlsPtr_.managed_stack.SetTopQuickFramePc(pc); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 333 | } |
| 334 | |
Jeff Hao | 11ffc2d | 2013-02-01 11:52:17 -0800 | [diff] [blame] | 335 | void SetTopOfShadowStack(ShadowFrame* top) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 336 | tlsPtr_.managed_stack.SetTopShadowFrame(top); |
Jeff Hao | 11ffc2d | 2013-02-01 11:52:17 -0800 | [diff] [blame] | 337 | } |
| 338 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 339 | bool HasManagedStack() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 340 | return (tlsPtr_.managed_stack.GetTopQuickFrame() != nullptr) || |
| 341 | (tlsPtr_.managed_stack.GetTopShadowFrame() != nullptr); |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 342 | } |
| 343 | |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 344 | // If 'msg' is NULL, no detail message is set. |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 345 | void ThrowNewException(const ThrowLocation& throw_location, |
| 346 | const char* exception_class_descriptor, const char* msg) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 347 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 5cb5ad2 | 2011-10-02 12:13:39 -0700 | [diff] [blame] | 348 | |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 349 | // If 'msg' is NULL, no detail message is set. An exception must be pending, and will be |
| 350 | // used as the new exception's cause. |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 351 | void ThrowNewWrappedException(const ThrowLocation& throw_location, |
| 352 | const char* exception_class_descriptor, |
| 353 | const char* msg) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 354 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 355 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 356 | void ThrowNewExceptionF(const ThrowLocation& throw_location, |
| 357 | const char* exception_class_descriptor, const char* fmt, ...) |
| 358 | __attribute__((format(printf, 4, 5))) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 359 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | a5b897e | 2011-08-16 11:33:06 -0700 | [diff] [blame] | 360 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 361 | void ThrowNewExceptionV(const ThrowLocation& throw_location, |
| 362 | const char* exception_class_descriptor, const char* fmt, va_list ap) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 363 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 364 | |
Elliott Hughes | 2ced6a5 | 2011-10-16 18:44:48 -0700 | [diff] [blame] | 365 | // OutOfMemoryError is special, because we need to pre-allocate an instance. |
Elliott Hughes | 8a8b9cb | 2012-04-13 18:29:22 -0700 | [diff] [blame] | 366 | // Only the GC should call this. |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 367 | void ThrowOutOfMemoryError(const char* msg) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 79082e3 | 2011-08-25 12:07:32 -0700 | [diff] [blame] | 368 | |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 369 | static void Startup(); |
Elliott Hughes | 038a806 | 2011-09-18 14:12:41 -0700 | [diff] [blame] | 370 | static void FinishStartup(); |
Elliott Hughes | c1674ed | 2011-08-25 18:09:09 -0700 | [diff] [blame] | 371 | static void Shutdown(); |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 372 | |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 373 | // JNI methods |
Elliott Hughes | 69f5bc6 | 2011-08-24 09:26:14 -0700 | [diff] [blame] | 374 | JNIEnvExt* GetJniEnv() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 375 | return tlsPtr_.jni_env; |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 376 | } |
| 377 | |
Ian Rogers | 408f79a | 2011-08-23 18:22:33 -0700 | [diff] [blame] | 378 | // Convert a jobject into a Object* |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 379 | mirror::Object* DecodeJObject(jobject obj) const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 380 | |
Mathieu Chartier | a6e7f08 | 2014-05-22 14:43:37 -0700 | [diff] [blame] | 381 | mirror::Object* GetMonitorEnterObject() const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 382 | return tlsPtr_.monitor_enter_object; |
| 383 | } |
| 384 | |
Mathieu Chartier | a6e7f08 | 2014-05-22 14:43:37 -0700 | [diff] [blame] | 385 | void SetMonitorEnterObject(mirror::Object* obj) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 386 | tlsPtr_.monitor_enter_object = obj; |
| 387 | } |
| 388 | |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 389 | // Implements java.lang.Thread.interrupted. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 390 | bool Interrupted() LOCKS_EXCLUDED(wait_mutex_); |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 391 | // Implements java.lang.Thread.isInterrupted. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 392 | bool IsInterrupted() LOCKS_EXCLUDED(wait_mutex_); |
| 393 | bool IsInterruptedLocked() EXCLUSIVE_LOCKS_REQUIRED(wait_mutex_) { |
| 394 | return interrupted_; |
| 395 | } |
| 396 | void Interrupt(Thread* self) LOCKS_EXCLUDED(wait_mutex_); |
| 397 | void SetInterruptedLocked(bool i) EXCLUSIVE_LOCKS_REQUIRED(wait_mutex_) { |
| 398 | interrupted_ = i; |
| 399 | } |
| 400 | void Notify() LOCKS_EXCLUDED(wait_mutex_); |
| 401 | |
| 402 | private: |
| 403 | void NotifyLocked(Thread* self) EXCLUSIVE_LOCKS_REQUIRED(wait_mutex_); |
| 404 | |
| 405 | public: |
| 406 | Mutex* GetWaitMutex() const LOCK_RETURNED(wait_mutex_) { |
| 407 | return wait_mutex_; |
| 408 | } |
| 409 | |
| 410 | ConditionVariable* GetWaitConditionVariable() const EXCLUSIVE_LOCKS_REQUIRED(wait_mutex_) { |
| 411 | return wait_cond_; |
| 412 | } |
| 413 | |
| 414 | Monitor* GetWaitMonitor() const EXCLUSIVE_LOCKS_REQUIRED(wait_mutex_) { |
| 415 | return wait_monitor_; |
| 416 | } |
| 417 | |
| 418 | void SetWaitMonitor(Monitor* mon) EXCLUSIVE_LOCKS_REQUIRED(wait_mutex_) { |
| 419 | wait_monitor_ = mon; |
| 420 | } |
| 421 | |
| 422 | |
| 423 | // Waiter link-list support. |
| 424 | Thread* GetWaitNext() const { |
| 425 | return tlsPtr_.wait_next; |
| 426 | } |
| 427 | |
| 428 | void SetWaitNext(Thread* next) { |
| 429 | tlsPtr_.wait_next = next; |
| 430 | } |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 431 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 432 | mirror::ClassLoader* GetClassLoaderOverride() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 433 | return tlsPtr_.class_loader_override; |
buzbee | c143c55 | 2011-08-20 17:38:58 -0700 | [diff] [blame] | 434 | } |
| 435 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 436 | void SetClassLoaderOverride(mirror::ClassLoader* class_loader_override) |
| 437 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
buzbee | c143c55 | 2011-08-20 17:38:58 -0700 | [diff] [blame] | 438 | |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 439 | // Create the internal representation of a stack trace, that is more time |
Sebastien Hertz | ee1d79a | 2014-02-21 15:46:30 +0100 | [diff] [blame] | 440 | // and space efficient to compute than the StackTraceElement[]. |
| 441 | template<bool kTransactionActive> |
Mathieu Chartier | 2b7c4d1 | 2014-05-19 10:52:16 -0700 | [diff] [blame] | 442 | jobject CreateInternalStackTrace(const ScopedObjectAccessAlreadyRunnable& soa) const |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 443 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 444 | |
Elliott Hughes | 01158d7 | 2011-09-19 19:47:10 -0700 | [diff] [blame] | 445 | // Convert an internal stack trace representation (returned by CreateInternalStackTrace) to a |
| 446 | // StackTraceElement[]. If output_array is NULL, a new array is created, otherwise as many |
| 447 | // frames as will fit are written into the given array. If stack_depth is non-NULL, it's updated |
| 448 | // with the number of valid frames in the returned array. |
Mathieu Chartier | 2b7c4d1 | 2014-05-19 10:52:16 -0700 | [diff] [blame] | 449 | static jobjectArray InternalStackTraceToStackTraceElementArray( |
| 450 | const ScopedObjectAccessAlreadyRunnable& soa, jobject internal, |
| 451 | jobjectArray output_array = nullptr, int* stack_depth = nullptr) |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 452 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 453 | |
Mathieu Chartier | 83c8ee0 | 2014-01-28 14:50:23 -0800 | [diff] [blame] | 454 | void VisitRoots(RootCallback* visitor, void* arg) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | 410c0c8 | 2011-09-01 17:58:25 -0700 | [diff] [blame] | 455 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 456 | ALWAYS_INLINE void VerifyStack() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
jeffhao | 2504552 | 2012-03-13 19:34:37 -0700 | [diff] [blame] | 457 | |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 458 | // |
| 459 | // Offsets of various members of native Thread class, used by compiled code. |
| 460 | // |
| 461 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 462 | template<size_t pointer_size> |
| 463 | static ThreadOffset<pointer_size> ThinLockIdOffset() { |
| 464 | return ThreadOffset<pointer_size>( |
| 465 | OFFSETOF_MEMBER(Thread, tls32_) + |
| 466 | OFFSETOF_MEMBER(tls_32bit_sized_values, thin_lock_thread_id)); |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 467 | } |
| 468 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 469 | template<size_t pointer_size> |
| 470 | static ThreadOffset<pointer_size> ThreadFlagsOffset() { |
| 471 | return ThreadOffset<pointer_size>( |
| 472 | OFFSETOF_MEMBER(Thread, tls32_) + |
| 473 | OFFSETOF_MEMBER(tls_32bit_sized_values, state_and_flags)); |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 474 | } |
| 475 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 476 | private: |
| 477 | template<size_t pointer_size> |
| 478 | static ThreadOffset<pointer_size> ThreadOffsetFromTlsPtr(size_t tls_ptr_offset) { |
| 479 | size_t base = OFFSETOF_MEMBER(Thread, tlsPtr_); |
| 480 | size_t scale; |
| 481 | size_t shrink; |
| 482 | if (pointer_size == sizeof(void*)) { |
| 483 | scale = 1; |
| 484 | shrink = 1; |
| 485 | } else if (pointer_size > sizeof(void*)) { |
| 486 | scale = pointer_size / sizeof(void*); |
| 487 | shrink = 1; |
| 488 | } else { |
| 489 | DCHECK_GT(sizeof(void*), pointer_size); |
| 490 | scale = 1; |
| 491 | shrink = sizeof(void*) / pointer_size; |
| 492 | } |
| 493 | return ThreadOffset<pointer_size>(base + ((tls_ptr_offset * scale) / shrink)); |
Ian Rogers | 07ec8e1 | 2012-12-01 01:26:51 -0800 | [diff] [blame] | 494 | } |
| 495 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 496 | public: |
| 497 | template<size_t pointer_size> |
| 498 | static ThreadOffset<pointer_size> QuickEntryPointOffset(size_t quick_entrypoint_offset) { |
| 499 | return ThreadOffsetFromTlsPtr<pointer_size>( |
| 500 | OFFSETOF_MEMBER(tls_ptr_sized_values, quick_entrypoints) + quick_entrypoint_offset); |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 501 | } |
| 502 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 503 | template<size_t pointer_size> |
| 504 | static ThreadOffset<pointer_size> InterpreterEntryPointOffset(size_t interp_entrypoint_offset) { |
| 505 | return ThreadOffsetFromTlsPtr<pointer_size>( |
| 506 | OFFSETOF_MEMBER(tls_ptr_sized_values, interpreter_entrypoints) + interp_entrypoint_offset); |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 507 | } |
| 508 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 509 | template<size_t pointer_size> |
| 510 | static ThreadOffset<pointer_size> JniEntryPointOffset(size_t jni_entrypoint_offset) { |
| 511 | return ThreadOffsetFromTlsPtr<pointer_size>( |
| 512 | OFFSETOF_MEMBER(tls_ptr_sized_values, jni_entrypoints) + jni_entrypoint_offset); |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 513 | } |
| 514 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 515 | template<size_t pointer_size> |
| 516 | static ThreadOffset<pointer_size> PortableEntryPointOffset(size_t port_entrypoint_offset) { |
| 517 | return ThreadOffsetFromTlsPtr<pointer_size>( |
| 518 | OFFSETOF_MEMBER(tls_ptr_sized_values, portable_entrypoints) + port_entrypoint_offset); |
| 519 | } |
| 520 | |
| 521 | template<size_t pointer_size> |
| 522 | static ThreadOffset<pointer_size> SelfOffset() { |
| 523 | return ThreadOffsetFromTlsPtr<pointer_size>(OFFSETOF_MEMBER(tls_ptr_sized_values, self)); |
| 524 | } |
| 525 | |
| 526 | template<size_t pointer_size> |
| 527 | static ThreadOffset<pointer_size> ExceptionOffset() { |
| 528 | return ThreadOffsetFromTlsPtr<pointer_size>(OFFSETOF_MEMBER(tls_ptr_sized_values, exception)); |
| 529 | } |
| 530 | |
| 531 | template<size_t pointer_size> |
| 532 | static ThreadOffset<pointer_size> PeerOffset() { |
| 533 | return ThreadOffsetFromTlsPtr<pointer_size>(OFFSETOF_MEMBER(tls_ptr_sized_values, opeer)); |
| 534 | } |
| 535 | |
| 536 | |
| 537 | template<size_t pointer_size> |
| 538 | static ThreadOffset<pointer_size> CardTableOffset() { |
| 539 | return ThreadOffsetFromTlsPtr<pointer_size>(OFFSETOF_MEMBER(tls_ptr_sized_values, card_table)); |
| 540 | } |
| 541 | |
| 542 | template<size_t pointer_size> |
| 543 | static ThreadOffset<pointer_size> ThreadSuspendTriggerOffset() { |
| 544 | return ThreadOffsetFromTlsPtr<pointer_size>( |
| 545 | OFFSETOF_MEMBER(tls_ptr_sized_values, suspend_trigger)); |
Dave Allison | b373e09 | 2014-02-20 16:06:36 -0800 | [diff] [blame] | 546 | } |
| 547 | |
Ian Rogers | 932746a | 2011-09-22 18:57:50 -0700 | [diff] [blame] | 548 | // Size of stack less any space reserved for stack overflow |
jeffhao | d752132 | 2012-11-21 15:38:24 -0800 | [diff] [blame] | 549 | size_t GetStackSize() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 550 | return tlsPtr_.stack_size - (tlsPtr_.stack_end - tlsPtr_.stack_begin); |
Ian Rogers | 932746a | 2011-09-22 18:57:50 -0700 | [diff] [blame] | 551 | } |
| 552 | |
jeffhao | d752132 | 2012-11-21 15:38:24 -0800 | [diff] [blame] | 553 | byte* GetStackEnd() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 554 | return tlsPtr_.stack_end; |
jeffhao | d752132 | 2012-11-21 15:38:24 -0800 | [diff] [blame] | 555 | } |
| 556 | |
Ian Rogers | 932746a | 2011-09-22 18:57:50 -0700 | [diff] [blame] | 557 | // 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] | 558 | void SetStackEndForStackOverflow() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | 932746a | 2011-09-22 18:57:50 -0700 | [diff] [blame] | 559 | |
| 560 | // Set the stack end to that to be used during regular execution |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 561 | void ResetDefaultStackEnd(bool implicit_overflow_check) { |
Ian Rogers | 932746a | 2011-09-22 18:57:50 -0700 | [diff] [blame] | 562 | // Our stacks grow down, so we want stack_end_ to be near there, but reserving enough room |
| 563 | // to throw a StackOverflowError. |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 564 | if (implicit_overflow_check) { |
| 565 | // For implicit checks we also need to add in the protected region above the |
| 566 | // overflow region. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 567 | tlsPtr_.stack_end = tlsPtr_.stack_begin + kStackOverflowImplicitCheckSize; |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 568 | } else { |
Andreas Gampe | 7cd26f3 | 2014-06-18 17:01:15 -0700 | [diff] [blame] | 569 | tlsPtr_.stack_end = tlsPtr_.stack_begin + kRuntimeStackOverflowReservedBytes; |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 570 | } |
Ian Rogers | 932746a | 2011-09-22 18:57:50 -0700 | [diff] [blame] | 571 | } |
| 572 | |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 573 | // Install the protected region for implicit stack checks. |
| 574 | void InstallImplicitProtection(bool is_main_stack); |
| 575 | |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 576 | bool IsHandlingStackOverflow() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 577 | return tlsPtr_.stack_end == tlsPtr_.stack_begin; |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 578 | } |
| 579 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 580 | template<size_t pointer_size> |
| 581 | static ThreadOffset<pointer_size> StackEndOffset() { |
| 582 | return ThreadOffsetFromTlsPtr<pointer_size>( |
| 583 | OFFSETOF_MEMBER(tls_ptr_sized_values, stack_end)); |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 584 | } |
| 585 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 586 | template<size_t pointer_size> |
| 587 | static ThreadOffset<pointer_size> JniEnvOffset() { |
| 588 | return ThreadOffsetFromTlsPtr<pointer_size>( |
| 589 | OFFSETOF_MEMBER(tls_ptr_sized_values, jni_env)); |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 590 | } |
| 591 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 592 | template<size_t pointer_size> |
| 593 | static ThreadOffset<pointer_size> TopOfManagedStackOffset() { |
| 594 | return ThreadOffsetFromTlsPtr<pointer_size>( |
| 595 | OFFSETOF_MEMBER(tls_ptr_sized_values, managed_stack) + |
| 596 | ManagedStack::TopQuickFrameOffset()); |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 597 | } |
| 598 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 599 | template<size_t pointer_size> |
| 600 | static ThreadOffset<pointer_size> TopOfManagedStackPcOffset() { |
| 601 | return ThreadOffsetFromTlsPtr<pointer_size>( |
| 602 | OFFSETOF_MEMBER(tls_ptr_sized_values, managed_stack) + |
| 603 | ManagedStack::TopQuickFramePcOffset()); |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 604 | } |
| 605 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 606 | const ManagedStack* GetManagedStack() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 607 | return &tlsPtr_.managed_stack; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 608 | } |
| 609 | |
| 610 | // Linked list recording fragments of managed stack. |
| 611 | void PushManagedStackFragment(ManagedStack* fragment) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 612 | tlsPtr_.managed_stack.PushManagedStackFragment(fragment); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 613 | } |
| 614 | void PopManagedStackFragment(const ManagedStack& fragment) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 615 | tlsPtr_.managed_stack.PopManagedStackFragment(fragment); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 616 | } |
| 617 | |
| 618 | ShadowFrame* PushShadowFrame(ShadowFrame* new_top_frame) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 619 | return tlsPtr_.managed_stack.PushShadowFrame(new_top_frame); |
TDYa127 | de479be | 2012-05-31 08:03:26 -0700 | [diff] [blame] | 620 | } |
| 621 | |
| 622 | ShadowFrame* PopShadowFrame() { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 623 | return tlsPtr_.managed_stack.PopShadowFrame(); |
TDYa127 | de479be | 2012-05-31 08:03:26 -0700 | [diff] [blame] | 624 | } |
Logan Chien | f7ad17e | 2012-03-15 03:10:03 +0800 | [diff] [blame] | 625 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 626 | template<size_t pointer_size> |
| 627 | static ThreadOffset<pointer_size> TopShadowFrameOffset() { |
| 628 | return ThreadOffsetFromTlsPtr<pointer_size>( |
| 629 | OFFSETOF_MEMBER(tls_ptr_sized_values, managed_stack) + |
| 630 | ManagedStack::TopShadowFrameOffset()); |
TDYa127 | d668a06 | 2012-04-13 12:36:57 -0700 | [diff] [blame] | 631 | } |
| 632 | |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 633 | // Number of references allocated in JNI ShadowFrames on this thread. |
| 634 | size_t NumJniShadowFrameReferences() const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 635 | return tlsPtr_.managed_stack.NumJniShadowFrameReferences(); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 636 | } |
| 637 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 638 | // Number of references in handle scope on this thread. |
| 639 | size_t NumHandleReferences(); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 640 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 641 | // Number of references allocated in handle scopes & JNI shadow frames on this thread. |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 642 | size_t NumStackReferences() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 643 | return NumHandleReferences() + NumJniShadowFrameReferences(); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 644 | }; |
| 645 | |
| 646 | // Is the given obj in this thread's stack indirect reference table? |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 647 | bool HandleScopeContains(jobject obj) const; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 648 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 649 | void HandleScopeVisitRoots(RootCallback* visitor, void* arg, uint32_t thread_id) |
Mathieu Chartier | 83c8ee0 | 2014-01-28 14:50:23 -0800 | [diff] [blame] | 650 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 651 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 652 | HandleScope* GetTopHandleScope() { |
| 653 | return tlsPtr_.top_handle_scope; |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 654 | } |
| 655 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 656 | void PushHandleScope(HandleScope* handle_scope) { |
| 657 | handle_scope->SetLink(tlsPtr_.top_handle_scope); |
| 658 | tlsPtr_.top_handle_scope = handle_scope; |
| 659 | } |
| 660 | |
| 661 | HandleScope* PopHandleScope() { |
| 662 | HandleScope* handle_scope = tlsPtr_.top_handle_scope; |
| 663 | DCHECK(handle_scope != nullptr); |
| 664 | tlsPtr_.top_handle_scope = tlsPtr_.top_handle_scope->GetLink(); |
| 665 | return handle_scope; |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 666 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 667 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 668 | template<size_t pointer_size> |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 669 | static ThreadOffset<pointer_size> TopHandleScopeOffset() { |
| 670 | return ThreadOffsetFromTlsPtr<pointer_size>(OFFSETOF_MEMBER(tls_ptr_sized_values, |
| 671 | top_handle_scope)); |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 672 | } |
| 673 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 674 | DebugInvokeReq* GetInvokeReq() const { |
| 675 | return tlsPtr_.debug_invoke_req; |
Elliott Hughes | 475fc23 | 2011-10-25 15:00:35 -0700 | [diff] [blame] | 676 | } |
| 677 | |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 678 | SingleStepControl* GetSingleStepControl() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 679 | return tlsPtr_.single_step_control; |
Sebastien Hertz | 61b7f1b | 2013-11-15 15:59:30 +0100 | [diff] [blame] | 680 | } |
| 681 | |
Sebastien Hertz | fd3077e | 2014-04-23 10:32:43 +0200 | [diff] [blame] | 682 | // Returns the fake exception used to activate deoptimization. |
| 683 | static mirror::Throwable* GetDeoptimizationException() { |
| 684 | return reinterpret_cast<mirror::Throwable*>(-1); |
| 685 | } |
| 686 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 687 | void SetDeoptimizationShadowFrame(ShadowFrame* sf); |
| 688 | void SetDeoptimizationReturnValue(const JValue& ret_val); |
Ian Rogers | 306057f | 2012-11-26 12:45:53 -0800 | [diff] [blame] | 689 | |
| 690 | ShadowFrame* GetAndClearDeoptimizationShadowFrame(JValue* ret_val); |
| 691 | |
Sebastien Hertz | 714f175 | 2014-04-28 15:03:08 +0200 | [diff] [blame] | 692 | bool HasDeoptimizationShadowFrame() const { |
| 693 | return tlsPtr_.deoptimization_shadow_frame != nullptr; |
| 694 | } |
| 695 | |
Andreas Gampe | 2a0d4ec | 2014-06-02 22:05:22 -0700 | [diff] [blame] | 696 | void SetShadowFrameUnderConstruction(ShadowFrame* sf); |
| 697 | void ClearShadowFrameUnderConstruction(); |
| 698 | |
| 699 | bool HasShadowFrameUnderConstruction() const { |
| 700 | return tlsPtr_.shadow_frame_under_construction != nullptr; |
| 701 | } |
| 702 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 703 | std::deque<instrumentation::InstrumentationStackFrame>* GetInstrumentationStack() { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 704 | return tlsPtr_.instrumentation_stack; |
jeffhao | e343b76 | 2011-12-05 16:36:44 -0800 | [diff] [blame] | 705 | } |
| 706 | |
Jeff Hao | 5ce4b17 | 2013-08-16 16:27:18 -0700 | [diff] [blame] | 707 | std::vector<mirror::ArtMethod*>* GetStackTraceSample() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 708 | return tlsPtr_.stack_trace_sample; |
Jeff Hao | 5ce4b17 | 2013-08-16 16:27:18 -0700 | [diff] [blame] | 709 | } |
| 710 | |
| 711 | void SetStackTraceSample(std::vector<mirror::ArtMethod*>* sample) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 712 | tlsPtr_.stack_trace_sample = sample; |
Jeff Hao | 5ce4b17 | 2013-08-16 16:27:18 -0700 | [diff] [blame] | 713 | } |
| 714 | |
| 715 | uint64_t GetTraceClockBase() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 716 | return tls64_.trace_clock_base; |
Jeff Hao | 5ce4b17 | 2013-08-16 16:27:18 -0700 | [diff] [blame] | 717 | } |
| 718 | |
| 719 | void SetTraceClockBase(uint64_t clock_base) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 720 | tls64_.trace_clock_base = clock_base; |
Jeff Hao | 5ce4b17 | 2013-08-16 16:27:18 -0700 | [diff] [blame] | 721 | } |
| 722 | |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 723 | BaseMutex* GetHeldMutex(LockLevel level) const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 724 | return tlsPtr_.held_mutexes[level]; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 725 | } |
| 726 | |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 727 | void SetHeldMutex(LockLevel level, BaseMutex* mutex) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 728 | tlsPtr_.held_mutexes[level] = mutex; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 729 | } |
Elliott Hughes | ffb465f | 2012-03-01 18:46:05 -0800 | [diff] [blame] | 730 | |
Mathieu Chartier | 752a0e6 | 2013-06-27 11:03:27 -0700 | [diff] [blame] | 731 | void RunCheckpointFunction(); |
Mathieu Chartier | 858f1c5 | 2012-10-17 17:45:55 -0700 | [diff] [blame] | 732 | |
| 733 | bool ReadFlag(ThreadFlag flag) const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 734 | return (tls32_.state_and_flags.as_struct.flags & flag) != 0; |
Mathieu Chartier | 858f1c5 | 2012-10-17 17:45:55 -0700 | [diff] [blame] | 735 | } |
| 736 | |
Jeff Hao | 9cec247 | 2013-05-14 18:17:06 -0700 | [diff] [blame] | 737 | bool TestAllFlags() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 738 | return (tls32_.state_and_flags.as_struct.flags != 0); |
Jeff Hao | 9cec247 | 2013-05-14 18:17:06 -0700 | [diff] [blame] | 739 | } |
| 740 | |
Mathieu Chartier | 858f1c5 | 2012-10-17 17:45:55 -0700 | [diff] [blame] | 741 | void AtomicSetFlag(ThreadFlag flag); |
| 742 | |
| 743 | void AtomicClearFlag(ThreadFlag flag); |
| 744 | |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 745 | void ResetQuickAllocEntryPointsForThread(); |
| 746 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 747 | // Returns the remaining space in the TLAB. |
| 748 | size_t TlabSize() const; |
| 749 | // Doesn't check that there is room. |
| 750 | mirror::Object* AllocTlab(size_t bytes); |
| 751 | void SetTlab(byte* start, byte* end); |
| 752 | bool HasTlab() const; |
Elliott Hughes | 5d96a71 | 2012-06-28 12:24:27 -0700 | [diff] [blame] | 753 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 754 | // Remove the suspend trigger for this thread by making the suspend_trigger_ TLS value |
| 755 | // equal to a valid pointer. |
| 756 | // TODO: does this need to atomic? I don't think so. |
| 757 | void RemoveSuspendTrigger() { |
| 758 | tlsPtr_.suspend_trigger = reinterpret_cast<uintptr_t*>(&tlsPtr_.suspend_trigger); |
| 759 | } |
| 760 | |
| 761 | // Trigger a suspend check by making the suspend_trigger_ TLS value an invalid pointer. |
| 762 | // The next time a suspend check is done, it will load from the value at this address |
| 763 | // and trigger a SIGSEGV. |
| 764 | void TriggerSuspend() { |
| 765 | tlsPtr_.suspend_trigger = nullptr; |
| 766 | } |
| 767 | |
| 768 | |
| 769 | // Push an object onto the allocation stack. |
| 770 | bool PushOnThreadLocalAllocationStack(mirror::Object* obj); |
| 771 | |
| 772 | // Set the thread local allocation pointers to the given pointers. |
| 773 | void SetThreadLocalAllocationStack(mirror::Object** start, mirror::Object** end); |
| 774 | |
| 775 | // Resets the thread local allocation pointers. |
| 776 | void RevokeThreadLocalAllocationStack(); |
| 777 | |
| 778 | size_t GetThreadLocalBytesAllocated() const { |
| 779 | return tlsPtr_.thread_local_pos - tlsPtr_.thread_local_start; |
| 780 | } |
| 781 | |
| 782 | size_t GetThreadLocalObjectsAllocated() const { |
| 783 | return tlsPtr_.thread_local_objects; |
| 784 | } |
| 785 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 786 | void* GetRosAllocRun(size_t index) const { |
| 787 | return tlsPtr_.rosalloc_runs[index]; |
| 788 | } |
| 789 | |
| 790 | void SetRosAllocRun(size_t index, void* run) { |
| 791 | tlsPtr_.rosalloc_runs[index] = run; |
| 792 | } |
| 793 | |
Sebastien Hertz | 9f10203 | 2014-05-23 08:59:42 +0200 | [diff] [blame] | 794 | bool IsExceptionReportedToInstrumentation() const { |
| 795 | return tls32_.is_exception_reported_to_instrumentation_; |
| 796 | } |
| 797 | |
| 798 | void SetExceptionReportedToInstrumentation(bool reported) { |
| 799 | tls32_.is_exception_reported_to_instrumentation_ = reported; |
| 800 | } |
| 801 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 802 | private: |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 803 | explicit Thread(bool daemon); |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 804 | ~Thread() LOCKS_EXCLUDED(Locks::mutator_lock_, |
| 805 | Locks::thread_suspend_count_lock_); |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 806 | void Destroy(); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 807 | |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 808 | void CreatePeer(const char* name, bool as_daemon, jobject thread_group); |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 809 | |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 810 | template<bool kTransactionActive> |
| 811 | void InitPeer(ScopedObjectAccess& soa, jboolean thread_is_daemon, jobject thread_group, |
| 812 | jobject thread_name, jint thread_priority) |
| 813 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| 814 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 815 | // Avoid use, callers should use SetState. Used only by SignalCatcher::HandleSigQuit, ~Thread and |
| 816 | // Dbg::Disconnected. |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 817 | ThreadState SetStateUnsafe(ThreadState new_state) { |
| 818 | ThreadState old_state = GetState(); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 819 | tls32_.state_and_flags.as_struct.state = new_state; |
Ian Rogers | c747cff | 2012-08-31 18:20:08 -0700 | [diff] [blame] | 820 | return old_state; |
| 821 | } |
Ian Rogers | c747cff | 2012-08-31 18:20:08 -0700 | [diff] [blame] | 822 | |
Ian Rogers | 04d7aa9 | 2013-03-16 14:29:17 -0700 | [diff] [blame] | 823 | void VerifyStackImpl() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| 824 | |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 825 | void DumpState(std::ostream& os) const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 826 | void DumpStack(std::ostream& os) const |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 827 | LOCKS_EXCLUDED(Locks::thread_suspend_count_lock_) |
| 828 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 829 | |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 830 | // Out-of-line conveniences for debugging in gdb. |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 831 | static Thread* CurrentFromGdb(); // Like Thread::Current. |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 832 | // Like Thread::Dump(std::cerr). |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 833 | void DumpFromGdb() const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 834 | |
Elliott Hughes | 93e74e8 | 2011-09-13 11:07:03 -0700 | [diff] [blame] | 835 | static void* CreateCallback(void* arg); |
| 836 | |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 837 | void HandleUncaughtExceptions(ScopedObjectAccess& soa) |
| 838 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| 839 | void RemoveFromThreadGroup(ScopedObjectAccess& soa) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 840 | |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 841 | void Init(ThreadList*, JavaVMExt*) EXCLUSIVE_LOCKS_REQUIRED(Locks::runtime_shutdown_lock_); |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 842 | void InitCardTable(); |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 843 | void InitCpu(); |
Alexei Zavjalov | 1efa0a9 | 2014-02-04 02:08:31 +0700 | [diff] [blame] | 844 | void CleanupCpu(); |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 845 | void InitTlsEntryPoints(); |
Brian Carlstrom | caabb1b | 2011-10-11 18:09:13 -0700 | [diff] [blame] | 846 | void InitTid(); |
Brian Carlstrom | caabb1b | 2011-10-11 18:09:13 -0700 | [diff] [blame] | 847 | void InitPthreadKeySelf(); |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 848 | void InitStackHwm(); |
| 849 | |
Elliott Hughes | d6a23bd | 2013-07-16 14:19:52 -0700 | [diff] [blame] | 850 | void SetUpAlternateSignalStack(); |
| 851 | void TearDownAlternateSignalStack(); |
| 852 | |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 853 | // 32 bits of atomically changed state and flags. Keeping as 32 bits allows and atomic CAS to |
| 854 | // change from being Suspended to Runnable without a suspend request occurring. |
Chris Dearman | 59cde53 | 2013-12-04 18:53:49 -0800 | [diff] [blame] | 855 | union PACKED(4) StateAndFlags { |
| 856 | StateAndFlags() {} |
Ian Rogers | df1ce91 | 2012-11-27 17:07:11 -0800 | [diff] [blame] | 857 | struct PACKED(4) { |
Ian Rogers | 30e173f | 2012-09-26 14:35:03 -0700 | [diff] [blame] | 858 | // Bitfield of flag values. Must be changed atomically so that flag values aren't lost. See |
| 859 | // ThreadFlags for bit field meanings. |
| 860 | volatile uint16_t flags; |
| 861 | // Holds the ThreadState. May be changed non-atomically between Suspended (ie not Runnable) |
| 862 | // transitions. Changing to Runnable requires that the suspend_request be part of the atomic |
| 863 | // operation. If a thread is suspended and a suspend_request is present, a thread may not |
| 864 | // change to Runnable as a GC or other operation is in progress. |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 865 | volatile uint16_t state; |
Ian Rogers | 30e173f | 2012-09-26 14:35:03 -0700 | [diff] [blame] | 866 | } as_struct; |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 867 | volatile int32_t as_int; |
Chris Dearman | 59cde53 | 2013-12-04 18:53:49 -0800 | [diff] [blame] | 868 | |
| 869 | private: |
| 870 | // gcc does not handle struct with volatile member assignments correctly. |
| 871 | // See http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47409 |
| 872 | DISALLOW_COPY_AND_ASSIGN(StateAndFlags); |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 873 | }; |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 874 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 875 | static void ThreadExitCallback(void* arg); |
Elliott Hughes | 5d96a71 | 2012-06-28 12:24:27 -0700 | [diff] [blame] | 876 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 877 | // Maximum number of checkpoint functions. |
| 878 | static constexpr uint32_t kMaxCheckpoints = 3; |
| 879 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 880 | // Has Thread::Startup been called? |
| 881 | static bool is_started_; |
Mathieu Chartier | 858f1c5 | 2012-10-17 17:45:55 -0700 | [diff] [blame] | 882 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 883 | // TLS key used to retrieve the Thread*. |
| 884 | static pthread_key_t pthread_key_self_; |
Ian Rogers | a32a6fd | 2012-02-06 20:18:44 -0800 | [diff] [blame] | 885 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 886 | // Used to notify threads that they should attempt to resume, they will suspend again if |
| 887 | // their suspend count is > 0. |
| 888 | static ConditionVariable* resume_cond_ GUARDED_BY(Locks::thread_suspend_count_lock_); |
Dave Allison | b373e09 | 2014-02-20 16:06:36 -0800 | [diff] [blame] | 889 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 890 | /***********************************************************************************************/ |
| 891 | // Thread local storage. Fields are grouped by size to enable 32 <-> 64 searching to account for |
| 892 | // pointer size differences. To encourage shorter encoding, more frequently used values appear |
| 893 | // first if possible. |
| 894 | /***********************************************************************************************/ |
Elliott Hughes | 6a607ad | 2012-07-13 20:40:00 -0700 | [diff] [blame] | 895 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 896 | struct PACKED(4) tls_32bit_sized_values { |
| 897 | // We have no control over the size of 'bool', but want our boolean fields |
| 898 | // to be 4-byte quantities. |
| 899 | typedef uint32_t bool32_t; |
Ian Rogers | 22f454c | 2012-09-08 11:06:29 -0700 | [diff] [blame] | 900 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 901 | explicit tls_32bit_sized_values(bool is_daemon) : |
| 902 | suspend_count(0), debug_suspend_count(0), thin_lock_thread_id(0), tid(0), |
| 903 | daemon(is_daemon), throwing_OutOfMemoryError(false), no_thread_suspension(0), |
Sebastien Hertz | 9f10203 | 2014-05-23 08:59:42 +0200 | [diff] [blame] | 904 | thread_exit_check_count(0), is_exception_reported_to_instrumentation_(false) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 905 | } |
Dave Allison | b373e09 | 2014-02-20 16:06:36 -0800 | [diff] [blame] | 906 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 907 | union StateAndFlags state_and_flags; |
| 908 | COMPILE_ASSERT(sizeof(union StateAndFlags) == sizeof(int32_t), |
| 909 | sizeof_state_and_flags_and_int32_are_different); |
Dave Allison | b373e09 | 2014-02-20 16:06:36 -0800 | [diff] [blame] | 910 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 911 | // A non-zero value is used to tell the current thread to enter a safe point |
| 912 | // at the next poll. |
| 913 | int suspend_count GUARDED_BY(Locks::thread_suspend_count_lock_); |
Hiroshi Yamauchi | cf58d4a | 2013-09-26 14:21:22 -0700 | [diff] [blame] | 914 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 915 | // How much of 'suspend_count_' is by request of the debugger, used to set things right |
| 916 | // when the debugger detaches. Must be <= suspend_count_. |
| 917 | int debug_suspend_count GUARDED_BY(Locks::thread_suspend_count_lock_); |
Hiroshi Yamauchi | f5b0e20 | 2014-02-11 17:02:22 -0800 | [diff] [blame] | 918 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 919 | // Thin lock thread id. This is a small integer used by the thin lock implementation. |
| 920 | // This is not to be confused with the native thread's tid, nor is it the value returned |
| 921 | // by java.lang.Thread.getId --- this is a distinct value, used only for locking. One |
| 922 | // important difference between this id and the ids visible to managed code is that these |
| 923 | // ones get reused (to ensure that they fit in the number of bits available). |
| 924 | uint32_t thin_lock_thread_id; |
Hiroshi Yamauchi | f5b0e20 | 2014-02-11 17:02:22 -0800 | [diff] [blame] | 925 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 926 | // System thread id. |
| 927 | uint32_t tid; |
Hiroshi Yamauchi | f5b0e20 | 2014-02-11 17:02:22 -0800 | [diff] [blame] | 928 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 929 | // Is the thread a daemon? |
| 930 | const bool32_t daemon; |
Hiroshi Yamauchi | f5b0e20 | 2014-02-11 17:02:22 -0800 | [diff] [blame] | 931 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 932 | // A boolean telling us whether we're recursively throwing OOME. |
| 933 | bool32_t throwing_OutOfMemoryError; |
| 934 | |
| 935 | // A positive value implies we're in a region where thread suspension isn't expected. |
| 936 | uint32_t no_thread_suspension; |
| 937 | |
| 938 | // How many times has our pthread key's destructor been called? |
| 939 | uint32_t thread_exit_check_count; |
Sebastien Hertz | 9f10203 | 2014-05-23 08:59:42 +0200 | [diff] [blame] | 940 | |
| 941 | // When true this field indicates that the exception associated with this thread has already |
| 942 | // been reported to instrumentation. |
| 943 | bool32_t is_exception_reported_to_instrumentation_; |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 944 | } tls32_; |
| 945 | |
| 946 | struct PACKED(8) tls_64bit_sized_values { |
| 947 | tls_64bit_sized_values() : trace_clock_base(0), deoptimization_return_value() { |
| 948 | } |
| 949 | |
| 950 | // The clock base used for tracing. |
| 951 | uint64_t trace_clock_base; |
| 952 | |
| 953 | // Return value used by deoptimization. |
| 954 | JValue deoptimization_return_value; |
| 955 | |
| 956 | RuntimeStats stats; |
| 957 | } tls64_; |
| 958 | |
| 959 | struct PACKED(4) tls_ptr_sized_values { |
| 960 | tls_ptr_sized_values() : card_table(nullptr), exception(nullptr), stack_end(nullptr), |
| 961 | managed_stack(), suspend_trigger(nullptr), jni_env(nullptr), self(nullptr), opeer(nullptr), |
| 962 | jpeer(nullptr), stack_begin(nullptr), stack_size(0), throw_location(), |
| 963 | stack_trace_sample(nullptr), wait_next(nullptr), monitor_enter_object(nullptr), |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 964 | top_handle_scope(nullptr), class_loader_override(nullptr), long_jump_context(nullptr), |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 965 | instrumentation_stack(nullptr), debug_invoke_req(nullptr), single_step_control(nullptr), |
Andreas Gampe | 2a0d4ec | 2014-06-02 22:05:22 -0700 | [diff] [blame] | 966 | deoptimization_shadow_frame(nullptr), shadow_frame_under_construction(nullptr), name(nullptr), |
| 967 | pthread_self(0), last_no_thread_suspension_cause(nullptr), thread_local_start(nullptr), |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 968 | thread_local_pos(nullptr), thread_local_end(nullptr), thread_local_objects(0), |
| 969 | thread_local_alloc_stack_top(nullptr), thread_local_alloc_stack_end(nullptr) { |
| 970 | } |
| 971 | |
| 972 | // The biased card table, see CardTable for details. |
| 973 | byte* card_table; |
| 974 | |
| 975 | // The pending exception or NULL. |
| 976 | mirror::Throwable* exception; |
| 977 | |
| 978 | // The end of this thread's stack. This is the lowest safely-addressable address on the stack. |
| 979 | // We leave extra space so there's room for the code that throws StackOverflowError. |
| 980 | byte* stack_end; |
| 981 | |
| 982 | // The top of the managed stack often manipulated directly by compiler generated code. |
| 983 | ManagedStack managed_stack; |
| 984 | |
| 985 | // In certain modes, setting this to 0 will trigger a SEGV and thus a suspend check. It is |
| 986 | // normally set to the address of itself. |
| 987 | uintptr_t* suspend_trigger; |
| 988 | |
| 989 | // Every thread may have an associated JNI environment |
| 990 | JNIEnvExt* jni_env; |
| 991 | |
| 992 | // Initialized to "this". On certain architectures (such as x86) reading off of Thread::Current |
| 993 | // is easy but getting the address of Thread::Current is hard. This field can be read off of |
| 994 | // Thread::Current to give the address. |
| 995 | Thread* self; |
| 996 | |
| 997 | // Our managed peer (an instance of java.lang.Thread). The jobject version is used during thread |
| 998 | // start up, until the thread is registered and the local opeer_ is used. |
| 999 | mirror::Object* opeer; |
| 1000 | jobject jpeer; |
| 1001 | |
| 1002 | // The "lowest addressable byte" of the stack. |
| 1003 | byte* stack_begin; |
| 1004 | |
| 1005 | // Size of the stack. |
| 1006 | size_t stack_size; |
| 1007 | |
| 1008 | // The location the current exception was thrown from. |
| 1009 | ThrowLocation throw_location; |
| 1010 | |
| 1011 | // Pointer to previous stack trace captured by sampling profiler. |
| 1012 | std::vector<mirror::ArtMethod*>* stack_trace_sample; |
| 1013 | |
| 1014 | // The next thread in the wait set this thread is part of or NULL if not waiting. |
| 1015 | Thread* wait_next; |
| 1016 | |
| 1017 | // If we're blocked in MonitorEnter, this is the object we're trying to lock. |
| 1018 | mirror::Object* monitor_enter_object; |
| 1019 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1020 | // Top of linked list of handle scopes or nullptr for none. |
| 1021 | HandleScope* top_handle_scope; |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1022 | |
| 1023 | // Needed to get the right ClassLoader in JNI_OnLoad, but also |
| 1024 | // useful for testing. |
| 1025 | mirror::ClassLoader* class_loader_override; |
| 1026 | |
| 1027 | // Thread local, lazily allocated, long jump context. Used to deliver exceptions. |
| 1028 | Context* long_jump_context; |
| 1029 | |
| 1030 | // Additional stack used by method instrumentation to store method and return pc values. |
| 1031 | // Stored as a pointer since std::deque is not PACKED. |
| 1032 | std::deque<instrumentation::InstrumentationStackFrame>* instrumentation_stack; |
| 1033 | |
| 1034 | // JDWP invoke-during-breakpoint support. |
| 1035 | DebugInvokeReq* debug_invoke_req; |
| 1036 | |
| 1037 | // JDWP single-stepping support. |
| 1038 | SingleStepControl* single_step_control; |
| 1039 | |
| 1040 | // Shadow frame stack that is used temporarily during the deoptimization of a method. |
| 1041 | ShadowFrame* deoptimization_shadow_frame; |
| 1042 | |
Andreas Gampe | 2a0d4ec | 2014-06-02 22:05:22 -0700 | [diff] [blame] | 1043 | // Shadow frame stack that is currently under construction but not yet on the stack |
| 1044 | ShadowFrame* shadow_frame_under_construction; |
| 1045 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1046 | // A cached copy of the java.lang.Thread's name. |
| 1047 | std::string* name; |
| 1048 | |
| 1049 | // A cached pthread_t for the pthread underlying this Thread*. |
| 1050 | pthread_t pthread_self; |
| 1051 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1052 | // If no_thread_suspension_ is > 0, what is causing that assertion. |
| 1053 | const char* last_no_thread_suspension_cause; |
| 1054 | |
| 1055 | // Pending checkpoint function or NULL if non-pending. Installation guarding by |
| 1056 | // Locks::thread_suspend_count_lock_. |
| 1057 | Closure* checkpoint_functions[kMaxCheckpoints]; |
| 1058 | |
| 1059 | // Entrypoint function pointers. |
| 1060 | // TODO: move this to more of a global offset table model to avoid per-thread duplication. |
| 1061 | InterpreterEntryPoints interpreter_entrypoints; |
| 1062 | JniEntryPoints jni_entrypoints; |
| 1063 | PortableEntryPoints portable_entrypoints; |
| 1064 | QuickEntryPoints quick_entrypoints; |
| 1065 | |
| 1066 | // Thread-local allocation pointer. |
| 1067 | byte* thread_local_start; |
| 1068 | byte* thread_local_pos; |
| 1069 | byte* thread_local_end; |
| 1070 | size_t thread_local_objects; |
| 1071 | |
Mathieu Chartier | 0651d41 | 2014-04-29 14:37:57 -0700 | [diff] [blame] | 1072 | // There are RosAlloc::kNumThreadLocalSizeBrackets thread-local size brackets per thread. |
| 1073 | void* rosalloc_runs[gc::allocator::RosAlloc::kNumThreadLocalSizeBrackets]; |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1074 | |
| 1075 | // Thread-local allocation stack data/routines. |
| 1076 | mirror::Object** thread_local_alloc_stack_top; |
| 1077 | mirror::Object** thread_local_alloc_stack_end; |
Chao-ying Fu | 9e36931 | 2014-05-21 11:20:52 -0700 | [diff] [blame] | 1078 | |
| 1079 | // Support for Mutex lock hierarchy bug detection. |
| 1080 | BaseMutex* held_mutexes[kLockLevelCount]; |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1081 | } tlsPtr_; |
| 1082 | |
| 1083 | // Guards the 'interrupted_' and 'wait_monitor_' members. |
| 1084 | Mutex* wait_mutex_ DEFAULT_MUTEX_ACQUIRED_AFTER; |
| 1085 | |
| 1086 | // Condition variable waited upon during a wait. |
| 1087 | ConditionVariable* wait_cond_ GUARDED_BY(wait_mutex_); |
| 1088 | // Pointer to the monitor lock we're currently waiting on or NULL if not waiting. |
| 1089 | Monitor* wait_monitor_ GUARDED_BY(wait_mutex_); |
| 1090 | |
| 1091 | // Thread "interrupted" status; stays raised until queried or thrown. |
| 1092 | bool interrupted_ GUARDED_BY(wait_mutex_); |
| 1093 | |
Mathieu Chartier | e6da9af | 2013-12-16 11:54:42 -0800 | [diff] [blame] | 1094 | friend class Dbg; // For SetStateUnsafe. |
Mathieu Chartier | 15d3402 | 2014-02-26 17:16:38 -0800 | [diff] [blame] | 1095 | friend class gc::collector::SemiSpace; // For getting stack traces. |
Mathieu Chartier | 692fafd | 2013-11-29 17:24:40 -0800 | [diff] [blame] | 1096 | friend class Runtime; // For CreatePeer. |
Ian Rogers | 5cf9819 | 2014-05-29 21:31:50 -0700 | [diff] [blame] | 1097 | friend class QuickExceptionHandler; // For dumping the stack. |
Mathieu Chartier | 692fafd | 2013-11-29 17:24:40 -0800 | [diff] [blame] | 1098 | friend class ScopedThreadStateChange; |
| 1099 | friend class SignalCatcher; // For SetStateUnsafe. |
Mathieu Chartier | 119c6bd | 2014-05-09 14:11:47 -0700 | [diff] [blame] | 1100 | friend class StubTest; // For accessing entrypoints. |
Mathieu Chartier | 692fafd | 2013-11-29 17:24:40 -0800 | [diff] [blame] | 1101 | friend class ThreadList; // For ~Thread and Destroy. |
| 1102 | |
Andreas Gampe | 4352b45 | 2014-06-04 18:59:01 -0700 | [diff] [blame] | 1103 | friend class EntrypointsOrderTest; // To test the order of tls entries. |
| 1104 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1105 | DISALLOW_COPY_AND_ASSIGN(Thread); |
| 1106 | }; |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 1107 | |
Elliott Hughes | 330304d | 2011-08-12 14:28:05 -0700 | [diff] [blame] | 1108 | std::ostream& operator<<(std::ostream& os, const Thread& thread); |
Elliott Hughes | 34e0696 | 2012-04-09 13:55:55 -0700 | [diff] [blame] | 1109 | std::ostream& operator<<(std::ostream& os, const ThreadState& state); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1110 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1111 | } // namespace art |
| 1112 | |
Brian Carlstrom | fc0e321 | 2013-07-17 14:40:12 -0700 | [diff] [blame] | 1113 | #endif // ART_RUNTIME_THREAD_H_ |