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 | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 16 | |
Mathieu Chartier | 752a0e6 | 2013-06-27 11:03:27 -0700 | [diff] [blame] | 17 | #define ATRACE_TAG ATRACE_TAG_DALVIK |
| 18 | |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 19 | #include "thread.h" |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 20 | |
Mathieu Chartier | 752a0e6 | 2013-06-27 11:03:27 -0700 | [diff] [blame] | 21 | #include <cutils/trace.h> |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 22 | #include <pthread.h> |
Elliott Hughes | 2acf36d | 2012-04-17 13:30:13 -0700 | [diff] [blame] | 23 | #include <signal.h> |
Brian Carlstrom | dbf05b7 | 2011-12-15 00:55:24 -0800 | [diff] [blame] | 24 | #include <sys/resource.h> |
| 25 | #include <sys/time.h> |
Elliott Hughes | a095764 | 2011-09-02 14:27:33 -0700 | [diff] [blame] | 26 | |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 27 | #include <algorithm> |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 28 | #include <bitset> |
Elliott Hughes | eb4f614 | 2011-07-15 17:43:51 -0700 | [diff] [blame] | 29 | #include <cerrno> |
Elliott Hughes | a095764 | 2011-09-02 14:27:33 -0700 | [diff] [blame] | 30 | #include <iostream> |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 31 | #include <list> |
Ian Rogers | c7dd295 | 2014-10-21 23:31:19 -0700 | [diff] [blame] | 32 | #include <sstream> |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 33 | |
Ian Rogers | 166db04 | 2013-07-26 12:05:57 -0700 | [diff] [blame] | 34 | #include "arch/context.h" |
Elliott Hughes | 76b6167 | 2012-12-12 17:47:30 -0800 | [diff] [blame] | 35 | #include "base/mutex.h" |
Hiroshi Yamauchi | 2cd334a | 2015-01-09 14:03:35 -0800 | [diff] [blame] | 36 | #include "base/timing_logger.h" |
Ian Rogers | c7dd295 | 2014-10-21 23:31:19 -0700 | [diff] [blame] | 37 | #include "base/to_str.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 38 | #include "class_linker-inl.h" |
Ian Rogers | 22d5e73 | 2014-07-15 22:23:51 -0700 | [diff] [blame] | 39 | #include "class_linker.h" |
Elliott Hughes | 46e251b | 2012-05-22 15:10:45 -0700 | [diff] [blame] | 40 | #include "debugger.h" |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 41 | #include "dex_file-inl.h" |
Ian Rogers | 7655f29 | 2013-07-29 11:07:13 -0700 | [diff] [blame] | 42 | #include "entrypoints/entrypoint_utils.h" |
Mathieu Chartier | d889178 | 2014-03-02 13:28:37 -0800 | [diff] [blame] | 43 | #include "entrypoints/quick/quick_alloc_entrypoints.h" |
Ian Rogers | 0c7abda | 2012-09-19 13:33:42 -0700 | [diff] [blame] | 44 | #include "gc_map.h" |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 45 | #include "gc/accounting/card_table-inl.h" |
Ian Rogers | e63db27 | 2014-07-15 15:36:11 -0700 | [diff] [blame] | 46 | #include "gc/allocator/rosalloc.h" |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 47 | #include "gc/heap.h" |
| 48 | #include "gc/space/space.h" |
Ian Rogers | 22d5e73 | 2014-07-15 22:23:51 -0700 | [diff] [blame] | 49 | #include "handle_scope-inl.h" |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 50 | #include "handle_scope.h" |
Mathieu Chartier | c56057e | 2014-05-04 13:18:58 -0700 | [diff] [blame] | 51 | #include "indirect_reference_table-inl.h" |
Elliott Hughes | c5f7c91 | 2011-08-18 14:00:42 -0700 | [diff] [blame] | 52 | #include "jni_internal.h" |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 53 | #include "mirror/art_field-inl.h" |
| 54 | #include "mirror/art_method-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 55 | #include "mirror/class_loader.h" |
Ian Rogers | 22d5e73 | 2014-07-15 22:23:51 -0700 | [diff] [blame] | 56 | #include "mirror/class-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 57 | #include "mirror/object_array-inl.h" |
| 58 | #include "mirror/stack_trace_element.h" |
Elliott Hughes | 8e4aac5 | 2011-09-26 17:03:36 -0700 | [diff] [blame] | 59 | #include "monitor.h" |
Ian Rogers | 22d5e73 | 2014-07-15 22:23:51 -0700 | [diff] [blame] | 60 | #include "object_lock.h" |
Sebastien Hertz | fd3077e | 2014-04-23 10:32:43 +0200 | [diff] [blame] | 61 | #include "quick_exception_handler.h" |
Vladimir Marko | 7624d25 | 2014-05-02 14:40:15 +0100 | [diff] [blame] | 62 | #include "quick/quick_method_frame_info.h" |
Jesse Wilson | 9a6bae8 | 2011-11-14 14:57:30 -0500 | [diff] [blame] | 63 | #include "reflection.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 64 | #include "runtime.h" |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 65 | #include "scoped_thread_state_change.h" |
Elliott Hughes | 46e251b | 2012-05-22 15:10:45 -0700 | [diff] [blame] | 66 | #include "ScopedLocalRef.h" |
Anwar Ghuloum | 3c539ff | 2013-06-20 08:58:23 -0700 | [diff] [blame] | 67 | #include "ScopedUtfChars.h" |
Elliott Hughes | 68e7652 | 2011-10-05 13:22:16 -0700 | [diff] [blame] | 68 | #include "stack.h" |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 69 | #include "thread_list.h" |
Ian Rogers | 22d5e73 | 2014-07-15 22:23:51 -0700 | [diff] [blame] | 70 | #include "thread-inl.h" |
Elliott Hughes | a095764 | 2011-09-02 14:27:33 -0700 | [diff] [blame] | 71 | #include "utils.h" |
TDYa127 | ce4cc0d | 2012-11-18 16:59:53 -0800 | [diff] [blame] | 72 | #include "verifier/dex_gc_map.h" |
Mathieu Chartier | 12d625f | 2015-03-13 11:33:37 -0700 | [diff] [blame] | 73 | #include "verifier/method_verifier.h" |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 74 | #include "verify_object-inl.h" |
Ian Rogers | 1809a72 | 2013-08-09 22:05:32 -0700 | [diff] [blame] | 75 | #include "vmap_table.h" |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 76 | #include "well_known_classes.h" |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 77 | |
| 78 | namespace art { |
| 79 | |
Ian Rogers | 0878d65 | 2013-04-18 17:38:35 -0700 | [diff] [blame] | 80 | bool Thread::is_started_ = false; |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 81 | pthread_key_t Thread::pthread_key_self_; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 82 | ConditionVariable* Thread::resume_cond_ = nullptr; |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 83 | const size_t Thread::kStackOverflowImplicitCheckSize = GetStackOverflowReservedBytes(kRuntimeISA); |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 84 | |
Elliott Hughes | 7dc5166 | 2012-05-16 14:48:43 -0700 | [diff] [blame] | 85 | static const char* kThreadNameDuringStartup = "<native thread without managed peer>"; |
| 86 | |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 87 | void Thread::InitCardTable() { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 88 | tlsPtr_.card_table = Runtime::Current()->GetHeap()->GetCardTable()->GetBiasedBegin(); |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 89 | } |
| 90 | |
Elliott Hughes | 3ea0f42 | 2012-04-16 17:01:43 -0700 | [diff] [blame] | 91 | static void UnimplementedEntryPoint() { |
| 92 | UNIMPLEMENTED(FATAL); |
| 93 | } |
| 94 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 95 | void InitEntryPoints(InterpreterEntryPoints* ipoints, JniEntryPoints* jpoints, |
Elliott Hughes | 956af0f | 2014-12-11 14:34:28 -0800 | [diff] [blame] | 96 | QuickEntryPoints* qpoints); |
Ian Rogers | 7655f29 | 2013-07-29 11:07:13 -0700 | [diff] [blame] | 97 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 98 | void Thread::InitTlsEntryPoints() { |
Elliott Hughes | 3ea0f42 | 2012-04-16 17:01:43 -0700 | [diff] [blame] | 99 | // Insert a placeholder so we can easily tell if we call an unimplemented entry point. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 100 | uintptr_t* begin = reinterpret_cast<uintptr_t*>(&tlsPtr_.interpreter_entrypoints); |
Xingxing Pan | acbb308 | 2014-10-16 13:41:58 +0800 | [diff] [blame] | 101 | uintptr_t* end = reinterpret_cast<uintptr_t*>(reinterpret_cast<uint8_t*>(&tlsPtr_.quick_entrypoints) + |
| 102 | sizeof(tlsPtr_.quick_entrypoints)); |
Ian Rogers | 7655f29 | 2013-07-29 11:07:13 -0700 | [diff] [blame] | 103 | for (uintptr_t* it = begin; it != end; ++it) { |
| 104 | *it = reinterpret_cast<uintptr_t>(UnimplementedEntryPoint); |
| 105 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 106 | InitEntryPoints(&tlsPtr_.interpreter_entrypoints, &tlsPtr_.jni_entrypoints, |
Elliott Hughes | 956af0f | 2014-12-11 14:34:28 -0800 | [diff] [blame] | 107 | &tlsPtr_.quick_entrypoints); |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 108 | } |
| 109 | |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 110 | void Thread::ResetQuickAllocEntryPointsForThread() { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 111 | ResetQuickAllocEntryPoints(&tlsPtr_.quick_entrypoints); |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 112 | } |
| 113 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 114 | void Thread::SetDeoptimizationShadowFrame(ShadowFrame* sf) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 115 | tlsPtr_.deoptimization_shadow_frame = sf; |
buzbee | 3ea4ec5 | 2011-08-22 17:37:19 -0700 | [diff] [blame] | 116 | } |
| 117 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 118 | void Thread::SetDeoptimizationReturnValue(const JValue& ret_val) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 119 | tls64_.deoptimization_return_value.SetJ(ret_val.GetJ()); |
Ian Rogers | 306057f | 2012-11-26 12:45:53 -0800 | [diff] [blame] | 120 | } |
| 121 | |
| 122 | ShadowFrame* Thread::GetAndClearDeoptimizationShadowFrame(JValue* ret_val) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 123 | ShadowFrame* sf = tlsPtr_.deoptimization_shadow_frame; |
| 124 | tlsPtr_.deoptimization_shadow_frame = nullptr; |
| 125 | ret_val->SetJ(tls64_.deoptimization_return_value.GetJ()); |
Ian Rogers | 306057f | 2012-11-26 12:45:53 -0800 | [diff] [blame] | 126 | return sf; |
| 127 | } |
| 128 | |
Andreas Gampe | 2a0d4ec | 2014-06-02 22:05:22 -0700 | [diff] [blame] | 129 | void Thread::SetShadowFrameUnderConstruction(ShadowFrame* sf) { |
| 130 | sf->SetLink(tlsPtr_.shadow_frame_under_construction); |
| 131 | tlsPtr_.shadow_frame_under_construction = sf; |
| 132 | } |
| 133 | |
| 134 | void Thread::ClearShadowFrameUnderConstruction() { |
| 135 | CHECK_NE(static_cast<ShadowFrame*>(nullptr), tlsPtr_.shadow_frame_under_construction); |
| 136 | tlsPtr_.shadow_frame_under_construction = tlsPtr_.shadow_frame_under_construction->GetLink(); |
| 137 | } |
| 138 | |
Brian Carlstrom | caabb1b | 2011-10-11 18:09:13 -0700 | [diff] [blame] | 139 | void Thread::InitTid() { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 140 | tls32_.tid = ::art::GetTid(); |
Brian Carlstrom | caabb1b | 2011-10-11 18:09:13 -0700 | [diff] [blame] | 141 | } |
| 142 | |
Brian Carlstrom | caabb1b | 2011-10-11 18:09:13 -0700 | [diff] [blame] | 143 | void Thread::InitAfterFork() { |
Elliott Hughes | 8029cbe | 2012-05-22 09:13:08 -0700 | [diff] [blame] | 144 | // One thread (us) survived the fork, but we have a new tid so we need to |
| 145 | // update the value stashed in this Thread*. |
Brian Carlstrom | caabb1b | 2011-10-11 18:09:13 -0700 | [diff] [blame] | 146 | InitTid(); |
Brian Carlstrom | caabb1b | 2011-10-11 18:09:13 -0700 | [diff] [blame] | 147 | } |
| 148 | |
Brian Carlstrom | 78128a6 | 2011-09-15 17:21:19 -0700 | [diff] [blame] | 149 | void* Thread::CreateCallback(void* arg) { |
Elliott Hughes | 93e74e8 | 2011-09-13 11:07:03 -0700 | [diff] [blame] | 150 | Thread* self = reinterpret_cast<Thread*>(arg); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 151 | Runtime* runtime = Runtime::Current(); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 152 | if (runtime == nullptr) { |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 153 | LOG(ERROR) << "Thread attaching to non-existent runtime: " << *self; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 154 | return nullptr; |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 155 | } |
| 156 | { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 157 | // TODO: pass self to MutexLock - requires self to equal Thread::Current(), which is only true |
| 158 | // after self->Init(). |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 159 | MutexLock mu(nullptr, *Locks::runtime_shutdown_lock_); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 160 | // Check that if we got here we cannot be shutting down (as shutdown should never have started |
| 161 | // while threads are being born). |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 162 | CHECK(!runtime->IsShuttingDownLocked()); |
Ian Rogers | f4d4da1 | 2014-11-11 16:10:33 -0800 | [diff] [blame] | 163 | CHECK(self->Init(runtime->GetThreadList(), runtime->GetJavaVM())); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 164 | Runtime::Current()->EndThreadBirth(); |
| 165 | } |
Elliott Hughes | 47179f7 | 2011-10-27 16:44:39 -0700 | [diff] [blame] | 166 | { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 167 | ScopedObjectAccess soa(self); |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 168 | |
| 169 | // Copy peer into self, deleting global reference when done. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 170 | CHECK(self->tlsPtr_.jpeer != nullptr); |
| 171 | self->tlsPtr_.opeer = soa.Decode<mirror::Object*>(self->tlsPtr_.jpeer); |
| 172 | self->GetJniEnv()->DeleteGlobalRef(self->tlsPtr_.jpeer); |
| 173 | self->tlsPtr_.jpeer = nullptr; |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 174 | self->SetThreadName(self->GetThreadName(soa)->ToModifiedUtf8().c_str()); |
Narayan Kamath | a0b3451 | 2014-10-07 12:51:26 +0100 | [diff] [blame] | 175 | |
| 176 | mirror::ArtField* priorityField = soa.DecodeField(WellKnownClasses::java_lang_Thread_priority); |
| 177 | self->SetNativePriority(priorityField->GetInt(self->tlsPtr_.opeer)); |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 178 | Dbg::PostThreadStart(self); |
| 179 | |
| 180 | // Invoke the 'run' method of our java.lang.Thread. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 181 | mirror::Object* receiver = self->tlsPtr_.opeer; |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 182 | jmethodID mid = WellKnownClasses::java_lang_Thread_run; |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 183 | InvokeVirtualOrInterfaceWithJValues(soa, receiver, mid, nullptr); |
Elliott Hughes | 47179f7 | 2011-10-27 16:44:39 -0700 | [diff] [blame] | 184 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 185 | // Detach and delete self. |
| 186 | Runtime::Current()->GetThreadList()->Unregister(self); |
Elliott Hughes | 93e74e8 | 2011-09-13 11:07:03 -0700 | [diff] [blame] | 187 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 188 | return nullptr; |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 189 | } |
| 190 | |
Mathieu Chartier | 2b7c4d1 | 2014-05-19 10:52:16 -0700 | [diff] [blame] | 191 | Thread* Thread::FromManagedThread(const ScopedObjectAccessAlreadyRunnable& soa, |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 192 | mirror::Object* thread_peer) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 193 | mirror::ArtField* f = soa.DecodeField(WellKnownClasses::java_lang_Thread_nativePeer); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 194 | Thread* result = reinterpret_cast<Thread*>(static_cast<uintptr_t>(f->GetLong(thread_peer))); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 195 | // Sanity check that if we have a result it is either suspended or we hold the thread_list_lock_ |
| 196 | // to stop it from going away. |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 197 | if (kIsDebugBuild) { |
| 198 | MutexLock mu(soa.Self(), *Locks::thread_suspend_count_lock_); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 199 | if (result != nullptr && !result->IsSuspended()) { |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 200 | Locks::thread_list_lock_->AssertHeld(soa.Self()); |
| 201 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 202 | } |
| 203 | return result; |
Elliott Hughes | 761928d | 2011-11-16 18:33:03 -0800 | [diff] [blame] | 204 | } |
| 205 | |
Mathieu Chartier | 2b7c4d1 | 2014-05-19 10:52:16 -0700 | [diff] [blame] | 206 | Thread* Thread::FromManagedThread(const ScopedObjectAccessAlreadyRunnable& soa, |
| 207 | jobject java_thread) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 208 | return FromManagedThread(soa, soa.Decode<mirror::Object*>(java_thread)); |
Elliott Hughes | 01158d7 | 2011-09-19 19:47:10 -0700 | [diff] [blame] | 209 | } |
| 210 | |
Elliott Hughes | ab7b9dc | 2012-03-27 13:16:29 -0700 | [diff] [blame] | 211 | static size_t FixStackSize(size_t stack_size) { |
Elliott Hughes | 7502e2a | 2011-10-02 13:24:37 -0700 | [diff] [blame] | 212 | // A stack size of zero means "use the default". |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 213 | if (stack_size == 0) { |
| 214 | stack_size = Runtime::Current()->GetDefaultStackSize(); |
| 215 | } |
Carl Shapiro | 61e019d | 2011-07-14 16:53:09 -0700 | [diff] [blame] | 216 | |
Brian Carlstrom | 6414a97 | 2012-04-14 14:20:04 -0700 | [diff] [blame] | 217 | // Dalvik used the bionic pthread default stack size for native threads, |
| 218 | // so include that here to support apps that expect large native stacks. |
| 219 | stack_size += 1 * MB; |
| 220 | |
Elliott Hughes | 7502e2a | 2011-10-02 13:24:37 -0700 | [diff] [blame] | 221 | // It's not possible to request a stack smaller than the system-defined PTHREAD_STACK_MIN. |
| 222 | if (stack_size < PTHREAD_STACK_MIN) { |
| 223 | stack_size = PTHREAD_STACK_MIN; |
| 224 | } |
| 225 | |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 226 | if (Runtime::Current()->ExplicitStackOverflowChecks()) { |
| 227 | // It's likely that callers are trying to ensure they have at least a certain amount of |
| 228 | // stack space, so we should add our reserved space on top of what they requested, rather |
| 229 | // than implicitly take it away from them. |
Andreas Gampe | 7ea6f79 | 2014-07-14 16:21:44 -0700 | [diff] [blame] | 230 | stack_size += GetStackOverflowReservedBytes(kRuntimeISA); |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 231 | } else { |
| 232 | // If we are going to use implicit stack checks, allocate space for the protected |
| 233 | // region at the bottom of the stack. |
Dave Allison | b090a18 | 2014-08-14 17:02:48 +0000 | [diff] [blame] | 234 | stack_size += Thread::kStackOverflowImplicitCheckSize + |
| 235 | GetStackOverflowReservedBytes(kRuntimeISA); |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 236 | } |
Elliott Hughes | 7502e2a | 2011-10-02 13:24:37 -0700 | [diff] [blame] | 237 | |
| 238 | // Some systems require the stack size to be a multiple of the system page size, so round up. |
| 239 | stack_size = RoundUp(stack_size, kPageSize); |
| 240 | |
| 241 | return stack_size; |
| 242 | } |
| 243 | |
Dave Allison | 69dfe51 | 2014-07-11 17:11:58 +0000 | [diff] [blame] | 244 | // Global variable to prevent the compiler optimizing away the page reads for the stack. |
Ian Rogers | 1373595 | 2014-10-08 12:43:28 -0700 | [diff] [blame] | 245 | uint8_t dont_optimize_this; |
Dave Allison | 69dfe51 | 2014-07-11 17:11:58 +0000 | [diff] [blame] | 246 | |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 247 | // Install a protected region in the stack. This is used to trigger a SIGSEGV if a stack |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 248 | // overflow is detected. It is located right below the stack_begin_. |
Dave Allison | 69dfe51 | 2014-07-11 17:11:58 +0000 | [diff] [blame] | 249 | // |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 250 | // There is a little complexity here that deserves a special mention. On some |
| 251 | // architectures, the stack created using a VM_GROWSDOWN flag |
Dave Allison | 69dfe51 | 2014-07-11 17:11:58 +0000 | [diff] [blame] | 252 | // to prevent memory being allocated when it's not needed. This flag makes the |
| 253 | // kernel only allocate memory for the stack by growing down in memory. Because we |
| 254 | // want to put an mprotected region far away from that at the stack top, we need |
| 255 | // to make sure the pages for the stack are mapped in before we call mprotect. We do |
| 256 | // this by reading every page from the stack bottom (highest address) to the stack top. |
| 257 | // We then madvise this away. |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 258 | void Thread::InstallImplicitProtection() { |
Ian Rogers | 1373595 | 2014-10-08 12:43:28 -0700 | [diff] [blame] | 259 | uint8_t* pregion = tlsPtr_.stack_begin - kStackOverflowProtectedSize; |
| 260 | uint8_t* stack_himem = tlsPtr_.stack_end; |
| 261 | uint8_t* stack_top = reinterpret_cast<uint8_t*>(reinterpret_cast<uintptr_t>(&stack_himem) & |
Dave Allison | 69dfe51 | 2014-07-11 17:11:58 +0000 | [diff] [blame] | 262 | ~(kPageSize - 1)); // Page containing current top of stack. |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 263 | |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 264 | // First remove the protection on the protected region as will want to read and |
| 265 | // write it. This may fail (on the first attempt when the stack is not mapped) |
| 266 | // but we ignore that. |
| 267 | UnprotectStack(); |
Dave Allison | 69dfe51 | 2014-07-11 17:11:58 +0000 | [diff] [blame] | 268 | |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 269 | // Map in the stack. This must be done by reading from the |
| 270 | // current stack pointer downwards as the stack may be mapped using VM_GROWSDOWN |
| 271 | // in the kernel. Any access more than a page below the current SP might cause |
| 272 | // a segv. |
Dave Allison | 69dfe51 | 2014-07-11 17:11:58 +0000 | [diff] [blame] | 273 | |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 274 | // Read every page from the high address to the low. |
Ian Rogers | 1373595 | 2014-10-08 12:43:28 -0700 | [diff] [blame] | 275 | for (uint8_t* p = stack_top; p >= pregion; p -= kPageSize) { |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 276 | dont_optimize_this = *p; |
Dave Allison | 69dfe51 | 2014-07-11 17:11:58 +0000 | [diff] [blame] | 277 | } |
| 278 | |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 279 | VLOG(threads) << "installing stack protected region at " << std::hex << |
| 280 | static_cast<void*>(pregion) << " to " << |
| 281 | static_cast<void*>(pregion + kStackOverflowProtectedSize - 1); |
| 282 | |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 283 | // Protect the bottom of the stack to prevent read/write to it. |
| 284 | ProtectStack(); |
Dave Allison | 5cd3375 | 2014-04-15 15:57:58 -0700 | [diff] [blame] | 285 | |
| 286 | // Tell the kernel that we won't be needing these pages any more. |
Dave Allison | 69dfe51 | 2014-07-11 17:11:58 +0000 | [diff] [blame] | 287 | // NB. madvise will probably write zeroes into the memory (on linux it does). |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 288 | uint32_t unwanted_size = stack_top - pregion - kPageSize; |
| 289 | madvise(pregion, unwanted_size, MADV_DONTNEED); |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 290 | } |
| 291 | |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 292 | void Thread::CreateNativeThread(JNIEnv* env, jobject java_peer, size_t stack_size, bool is_daemon) { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 293 | CHECK(java_peer != nullptr); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 294 | Thread* self = static_cast<JNIEnvExt*>(env)->self; |
| 295 | Runtime* runtime = Runtime::Current(); |
Mathieu Chartier | dbe6f46 | 2012-09-25 16:54:50 -0700 | [diff] [blame] | 296 | |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 297 | // Atomically start the birth of the thread ensuring the runtime isn't shutting down. |
| 298 | bool thread_start_during_shutdown = false; |
Elliott Hughes | 47179f7 | 2011-10-27 16:44:39 -0700 | [diff] [blame] | 299 | { |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 300 | MutexLock mu(self, *Locks::runtime_shutdown_lock_); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 301 | if (runtime->IsShuttingDownLocked()) { |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 302 | thread_start_during_shutdown = true; |
| 303 | } else { |
| 304 | runtime->StartThreadBirth(); |
| 305 | } |
Elliott Hughes | 47179f7 | 2011-10-27 16:44:39 -0700 | [diff] [blame] | 306 | } |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 307 | if (thread_start_during_shutdown) { |
| 308 | ScopedLocalRef<jclass> error_class(env, env->FindClass("java/lang/InternalError")); |
| 309 | env->ThrowNew(error_class.get(), "Thread starting during runtime shutdown"); |
| 310 | return; |
| 311 | } |
| 312 | |
| 313 | Thread* child_thread = new Thread(is_daemon); |
| 314 | // Use global JNI ref to hold peer live while child thread starts. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 315 | child_thread->tlsPtr_.jpeer = env->NewGlobalRef(java_peer); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 316 | stack_size = FixStackSize(stack_size); |
| 317 | |
Anwar Ghuloum | 3c50a4b | 2013-06-21 13:05:23 -0700 | [diff] [blame] | 318 | // Thread.start is synchronized, so we know that nativePeer is 0, and know that we're not racing to |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 319 | // assign it. |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 320 | env->SetLongField(java_peer, WellKnownClasses::java_lang_Thread_nativePeer, |
| 321 | reinterpret_cast<jlong>(child_thread)); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 322 | |
| 323 | pthread_t new_pthread; |
| 324 | pthread_attr_t attr; |
| 325 | CHECK_PTHREAD_CALL(pthread_attr_init, (&attr), "new thread"); |
| 326 | CHECK_PTHREAD_CALL(pthread_attr_setdetachstate, (&attr, PTHREAD_CREATE_DETACHED), "PTHREAD_CREATE_DETACHED"); |
| 327 | CHECK_PTHREAD_CALL(pthread_attr_setstacksize, (&attr, stack_size), stack_size); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 328 | int pthread_create_result = pthread_create(&new_pthread, &attr, Thread::CreateCallback, child_thread); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 329 | CHECK_PTHREAD_CALL(pthread_attr_destroy, (&attr), "new thread"); |
| 330 | |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 331 | if (pthread_create_result != 0) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 332 | // pthread_create(3) failed, so clean up. |
Brian Carlstrom | 9efc3e0 | 2012-08-17 17:47:17 -0700 | [diff] [blame] | 333 | { |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 334 | MutexLock mu(self, *Locks::runtime_shutdown_lock_); |
| 335 | runtime->EndThreadBirth(); |
| 336 | } |
| 337 | // Manually delete the global reference since Thread::Init will not have been run. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 338 | env->DeleteGlobalRef(child_thread->tlsPtr_.jpeer); |
| 339 | child_thread->tlsPtr_.jpeer = nullptr; |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 340 | delete child_thread; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 341 | child_thread = nullptr; |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 342 | // TODO: remove from thread group? |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 343 | env->SetLongField(java_peer, WellKnownClasses::java_lang_Thread_nativePeer, 0); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 344 | { |
Brian Carlstrom | 9efc3e0 | 2012-08-17 17:47:17 -0700 | [diff] [blame] | 345 | std::string msg(StringPrintf("pthread_create (%s stack) failed: %s", |
| 346 | PrettySize(stack_size).c_str(), strerror(pthread_create_result))); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 347 | ScopedObjectAccess soa(env); |
| 348 | soa.Self()->ThrowOutOfMemoryError(msg.c_str()); |
Brian Carlstrom | 9efc3e0 | 2012-08-17 17:47:17 -0700 | [diff] [blame] | 349 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 350 | } |
Carl Shapiro | 61e019d | 2011-07-14 16:53:09 -0700 | [diff] [blame] | 351 | } |
| 352 | |
Ian Rogers | f4d4da1 | 2014-11-11 16:10:33 -0800 | [diff] [blame] | 353 | bool Thread::Init(ThreadList* thread_list, JavaVMExt* java_vm) { |
Elliott Hughes | 462c944 | 2012-03-23 18:47:50 -0700 | [diff] [blame] | 354 | // This function does all the initialization that must be run by the native thread it applies to. |
| 355 | // (When we create a new thread from managed code, we allocate the Thread* in Thread::Create so |
| 356 | // we can handshake with the corresponding native thread when it's ready.) Check this native |
| 357 | // thread hasn't been through here already... |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 358 | CHECK(Thread::Current() == nullptr); |
Ian Rogers | f4d4da1 | 2014-11-11 16:10:33 -0800 | [diff] [blame] | 359 | |
| 360 | // Set pthread_self_ ahead of pthread_setspecific, that makes Thread::Current function, this |
| 361 | // avoids pthread_self_ ever being invalid when discovered from Thread::Current(). |
| 362 | tlsPtr_.pthread_self = pthread_self(); |
| 363 | CHECK(is_started_); |
| 364 | |
Elliott Hughes | d8af159 | 2012-04-16 20:40:15 -0700 | [diff] [blame] | 365 | SetUpAlternateSignalStack(); |
Ian Rogers | f4d4da1 | 2014-11-11 16:10:33 -0800 | [diff] [blame] | 366 | if (!InitStackHwm()) { |
| 367 | return false; |
| 368 | } |
Elliott Hughes | 93e74e8 | 2011-09-13 11:07:03 -0700 | [diff] [blame] | 369 | InitCpu(); |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 370 | InitTlsEntryPoints(); |
Dave Allison | b373e09 | 2014-02-20 16:06:36 -0800 | [diff] [blame] | 371 | RemoveSuspendTrigger(); |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 372 | InitCardTable(); |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 373 | InitTid(); |
Ian Rogers | f4d4da1 | 2014-11-11 16:10:33 -0800 | [diff] [blame] | 374 | |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 375 | CHECK_PTHREAD_CALL(pthread_setspecific, (Thread::pthread_key_self_, this), "attach self"); |
| 376 | DCHECK_EQ(Thread::Current(), this); |
Carl Shapiro | 61e019d | 2011-07-14 16:53:09 -0700 | [diff] [blame] | 377 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 378 | tls32_.thin_lock_thread_id = thread_list->AllocThreadId(this); |
Carl Shapiro | 61e019d | 2011-07-14 16:53:09 -0700 | [diff] [blame] | 379 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 380 | tlsPtr_.jni_env = new JNIEnvExt(this, java_vm); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 381 | thread_list->Register(this); |
Ian Rogers | f4d4da1 | 2014-11-11 16:10:33 -0800 | [diff] [blame] | 382 | return true; |
Elliott Hughes | 93e74e8 | 2011-09-13 11:07:03 -0700 | [diff] [blame] | 383 | } |
| 384 | |
Mathieu Chartier | 664bebf | 2012-11-12 16:54:11 -0800 | [diff] [blame] | 385 | Thread* Thread::Attach(const char* thread_name, bool as_daemon, jobject thread_group, |
| 386 | bool create_peer) { |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 387 | Runtime* runtime = Runtime::Current(); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 388 | if (runtime == nullptr) { |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 389 | LOG(ERROR) << "Thread attaching to non-existent runtime: " << thread_name; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 390 | return nullptr; |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 391 | } |
Ian Rogers | f4d4da1 | 2014-11-11 16:10:33 -0800 | [diff] [blame] | 392 | Thread* self; |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 393 | { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 394 | MutexLock mu(nullptr, *Locks::runtime_shutdown_lock_); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 395 | if (runtime->IsShuttingDownLocked()) { |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 396 | LOG(ERROR) << "Thread attaching while runtime is shutting down: " << thread_name; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 397 | return nullptr; |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 398 | } else { |
| 399 | Runtime::Current()->StartThreadBirth(); |
| 400 | self = new Thread(as_daemon); |
Ian Rogers | f4d4da1 | 2014-11-11 16:10:33 -0800 | [diff] [blame] | 401 | bool init_success = self->Init(runtime->GetThreadList(), runtime->GetJavaVM()); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 402 | Runtime::Current()->EndThreadBirth(); |
Ian Rogers | f4d4da1 | 2014-11-11 16:10:33 -0800 | [diff] [blame] | 403 | if (!init_success) { |
| 404 | delete self; |
| 405 | return nullptr; |
| 406 | } |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 407 | } |
| 408 | } |
Elliott Hughes | 93e74e8 | 2011-09-13 11:07:03 -0700 | [diff] [blame] | 409 | |
Mathieu Chartier | dbe6f46 | 2012-09-25 16:54:50 -0700 | [diff] [blame] | 410 | CHECK_NE(self->GetState(), kRunnable); |
| 411 | self->SetState(kNative); |
Elliott Hughes | 93e74e8 | 2011-09-13 11:07:03 -0700 | [diff] [blame] | 412 | |
Elliott Hughes | cac6cc7 | 2011-11-03 20:31:21 -0700 | [diff] [blame] | 413 | // If we're the main thread, ClassLinker won't be created until after we're attached, |
| 414 | // so that thread needs a two-stage attach. Regular threads don't need this hack. |
Elliott Hughes | d9c67be | 2012-02-02 19:54:06 -0800 | [diff] [blame] | 415 | // In the compiler, all threads need this hack, because no-one's going to be getting |
| 416 | // a native peer! |
Mathieu Chartier | 664bebf | 2012-11-12 16:54:11 -0800 | [diff] [blame] | 417 | if (create_peer) { |
Elliott Hughes | 462c944 | 2012-03-23 18:47:50 -0700 | [diff] [blame] | 418 | self->CreatePeer(thread_name, as_daemon, thread_group); |
Elliott Hughes | 06e3ad4 | 2012-02-07 14:51:57 -0800 | [diff] [blame] | 419 | } else { |
| 420 | // These aren't necessary, but they improve diagnostics for unit tests & command-line tools. |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 421 | if (thread_name != nullptr) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 422 | self->tlsPtr_.name->assign(thread_name); |
Elliott Hughes | 22869a9 | 2012-03-27 14:08:24 -0700 | [diff] [blame] | 423 | ::art::SetThreadName(thread_name); |
Brian Carlstrom | 3ea69c0 | 2014-08-18 15:38:34 -0700 | [diff] [blame] | 424 | } else if (self->GetJniEnv()->check_jni) { |
| 425 | LOG(WARNING) << *Thread::Current() << " attached without supplying a name"; |
Elliott Hughes | 22869a9 | 2012-03-27 14:08:24 -0700 | [diff] [blame] | 426 | } |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 427 | } |
Elliott Hughes | cac6cc7 | 2011-11-03 20:31:21 -0700 | [diff] [blame] | 428 | |
Daniel Mihalyi | dfafeef | 2014-10-20 11:47:56 +0200 | [diff] [blame] | 429 | { |
| 430 | ScopedObjectAccess soa(self); |
| 431 | Dbg::PostThreadStart(self); |
| 432 | } |
| 433 | |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 434 | return self; |
| 435 | } |
| 436 | |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 437 | void Thread::CreatePeer(const char* name, bool as_daemon, jobject thread_group) { |
| 438 | Runtime* runtime = Runtime::Current(); |
| 439 | CHECK(runtime->IsStarted()); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 440 | JNIEnv* env = tlsPtr_.jni_env; |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 441 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 442 | if (thread_group == nullptr) { |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 443 | thread_group = runtime->GetMainThreadGroup(); |
Elliott Hughes | 462c944 | 2012-03-23 18:47:50 -0700 | [diff] [blame] | 444 | } |
Elliott Hughes | 726079d | 2011-10-07 18:43:44 -0700 | [diff] [blame] | 445 | ScopedLocalRef<jobject> thread_name(env, env->NewStringUTF(name)); |
Mathieu Chartier | e07fd17 | 2014-11-10 16:58:19 -0800 | [diff] [blame] | 446 | // Add missing null check in case of OOM b/18297817 |
Vladimir Marko | 4451205 | 2014-11-12 15:41:57 +0000 | [diff] [blame] | 447 | if (name != nullptr && thread_name.get() == nullptr) { |
Mathieu Chartier | e07fd17 | 2014-11-10 16:58:19 -0800 | [diff] [blame] | 448 | CHECK(IsExceptionPending()); |
| 449 | return; |
| 450 | } |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 451 | jint thread_priority = GetNativePriority(); |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 452 | jboolean thread_is_daemon = as_daemon; |
| 453 | |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 454 | ScopedLocalRef<jobject> peer(env, env->AllocObject(WellKnownClasses::java_lang_Thread)); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 455 | if (peer.get() == nullptr) { |
Mathieu Chartier | dbe6f46 | 2012-09-25 16:54:50 -0700 | [diff] [blame] | 456 | CHECK(IsExceptionPending()); |
| 457 | return; |
Ian Rogers | 5d4bdc2 | 2011-11-02 22:15:43 -0700 | [diff] [blame] | 458 | } |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 459 | { |
| 460 | ScopedObjectAccess soa(this); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 461 | tlsPtr_.opeer = soa.Decode<mirror::Object*>(peer.get()); |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 462 | } |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 463 | env->CallNonvirtualVoidMethod(peer.get(), |
| 464 | WellKnownClasses::java_lang_Thread, |
| 465 | WellKnownClasses::java_lang_Thread_init, |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 466 | thread_group, thread_name.get(), thread_priority, thread_is_daemon); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 467 | AssertNoPendingException(); |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 468 | |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 469 | Thread* self = this; |
| 470 | DCHECK_EQ(self, Thread::Current()); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 471 | env->SetLongField(peer.get(), WellKnownClasses::java_lang_Thread_nativePeer, |
| 472 | reinterpret_cast<jlong>(self)); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 473 | |
| 474 | ScopedObjectAccess soa(self); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 475 | StackHandleScope<1> hs(self); |
Andreas Gampe | 5a4b8a2 | 2014-09-11 08:30:08 -0700 | [diff] [blame] | 476 | MutableHandle<mirror::String> peer_thread_name(hs.NewHandle(GetThreadName(soa))); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 477 | if (peer_thread_name.Get() == nullptr) { |
Brian Carlstrom | 00fae58 | 2011-10-28 01:16:28 -0700 | [diff] [blame] | 478 | // The Thread constructor should have set the Thread.name to a |
| 479 | // non-null value. However, because we can run without code |
| 480 | // available (in the compiler, in tests), we manually assign the |
| 481 | // fields the constructor should have set. |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 482 | if (runtime->IsActiveTransaction()) { |
| 483 | InitPeer<true>(soa, thread_is_daemon, thread_group, thread_name.get(), thread_priority); |
| 484 | } else { |
| 485 | InitPeer<false>(soa, thread_is_daemon, thread_group, thread_name.get(), thread_priority); |
| 486 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 487 | peer_thread_name.Assign(GetThreadName(soa)); |
Brian Carlstrom | 00fae58 | 2011-10-28 01:16:28 -0700 | [diff] [blame] | 488 | } |
Elliott Hughes | 225f5a1 | 2012-06-11 11:23:48 -0700 | [diff] [blame] | 489 | // 'thread_name' may have been null, so don't trust 'peer_thread_name' to be non-null. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 490 | if (peer_thread_name.Get() != nullptr) { |
Elliott Hughes | 899e789 | 2012-01-24 14:57:32 -0800 | [diff] [blame] | 491 | SetThreadName(peer_thread_name->ToModifiedUtf8().c_str()); |
Brian Carlstrom | 00fae58 | 2011-10-28 01:16:28 -0700 | [diff] [blame] | 492 | } |
Carl Shapiro | 61e019d | 2011-07-14 16:53:09 -0700 | [diff] [blame] | 493 | } |
| 494 | |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 495 | template<bool kTransactionActive> |
| 496 | void Thread::InitPeer(ScopedObjectAccess& soa, jboolean thread_is_daemon, jobject thread_group, |
| 497 | jobject thread_name, jint thread_priority) { |
| 498 | soa.DecodeField(WellKnownClasses::java_lang_Thread_daemon)-> |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 499 | SetBoolean<kTransactionActive>(tlsPtr_.opeer, thread_is_daemon); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 500 | soa.DecodeField(WellKnownClasses::java_lang_Thread_group)-> |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 501 | SetObject<kTransactionActive>(tlsPtr_.opeer, soa.Decode<mirror::Object*>(thread_group)); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 502 | soa.DecodeField(WellKnownClasses::java_lang_Thread_name)-> |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 503 | SetObject<kTransactionActive>(tlsPtr_.opeer, soa.Decode<mirror::Object*>(thread_name)); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 504 | soa.DecodeField(WellKnownClasses::java_lang_Thread_priority)-> |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 505 | SetInt<kTransactionActive>(tlsPtr_.opeer, thread_priority); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 506 | } |
| 507 | |
Elliott Hughes | 899e789 | 2012-01-24 14:57:32 -0800 | [diff] [blame] | 508 | void Thread::SetThreadName(const char* name) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 509 | tlsPtr_.name->assign(name); |
Elliott Hughes | 899e789 | 2012-01-24 14:57:32 -0800 | [diff] [blame] | 510 | ::art::SetThreadName(name); |
| 511 | Dbg::DdmSendThreadNotification(this, CHUNK_TYPE("THNM")); |
| 512 | } |
| 513 | |
Ian Rogers | f4d4da1 | 2014-11-11 16:10:33 -0800 | [diff] [blame] | 514 | bool Thread::InitStackHwm() { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 515 | void* read_stack_base; |
| 516 | size_t read_stack_size; |
Elliott Hughes | 6d3fc56 | 2014-08-27 11:47:01 -0700 | [diff] [blame] | 517 | size_t read_guard_size; |
| 518 | GetThreadStack(tlsPtr_.pthread_self, &read_stack_base, &read_stack_size, &read_guard_size); |
Elliott Hughes | 36ecb78 | 2012-04-17 16:55:45 -0700 | [diff] [blame] | 519 | |
Ian Rogers | 1373595 | 2014-10-08 12:43:28 -0700 | [diff] [blame] | 520 | tlsPtr_.stack_begin = reinterpret_cast<uint8_t*>(read_stack_base); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 521 | tlsPtr_.stack_size = read_stack_size; |
Elliott Hughes | 36ecb78 | 2012-04-17 16:55:45 -0700 | [diff] [blame] | 522 | |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 523 | // The minimum stack size we can cope with is the overflow reserved bytes (typically |
| 524 | // 8K) + the protected region size (4K) + another page (4K). Typically this will |
| 525 | // be 8+4+4 = 16K. The thread won't be able to do much with this stack even the GC takes |
| 526 | // between 8K and 12K. |
| 527 | uint32_t min_stack = GetStackOverflowReservedBytes(kRuntimeISA) + kStackOverflowProtectedSize |
| 528 | + 4 * KB; |
| 529 | if (read_stack_size <= min_stack) { |
Ian Rogers | f4d4da1 | 2014-11-11 16:10:33 -0800 | [diff] [blame] | 530 | // Note, as we know the stack is small, avoid operations that could use a lot of stack. |
| 531 | LogMessage::LogLineLowStack(__PRETTY_FUNCTION__, __LINE__, ERROR, |
| 532 | "Attempt to attach a thread with a too-small stack"); |
| 533 | return false; |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 534 | } |
Elliott Hughes | 449b4bd | 2011-09-09 12:01:38 -0700 | [diff] [blame] | 535 | |
Vladimir Marko | b8f2f63 | 2015-01-02 14:23:26 +0000 | [diff] [blame] | 536 | // This is included in the SIGQUIT output, but it's useful here for thread debugging. |
| 537 | VLOG(threads) << StringPrintf("Native stack is at %p (%s with %s guard)", |
| 538 | read_stack_base, |
| 539 | PrettySize(read_stack_size).c_str(), |
| 540 | PrettySize(read_guard_size).c_str()); |
| 541 | |
Ian Rogers | 932746a | 2011-09-22 18:57:50 -0700 | [diff] [blame] | 542 | // Set stack_end_ to the bottom of the stack saving space of stack overflows |
Mathieu Chartier | 8e219ae | 2014-08-19 14:29:46 -0700 | [diff] [blame] | 543 | |
| 544 | Runtime* runtime = Runtime::Current(); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 545 | bool implicit_stack_check = !runtime->ExplicitStackOverflowChecks() && !runtime->IsAotCompiler(); |
Dave Allison | b090a18 | 2014-08-14 17:02:48 +0000 | [diff] [blame] | 546 | ResetDefaultStackEnd(); |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 547 | |
| 548 | // Install the protected region if we are doing implicit overflow checks. |
| 549 | if (implicit_stack_check) { |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 550 | // The thread might have protected region at the bottom. We need |
| 551 | // to install our own region so we need to move the limits |
| 552 | // of the stack to make room for it. |
Dave Allison | 216cf23 | 2014-08-18 15:49:51 -0700 | [diff] [blame] | 553 | |
Elliott Hughes | 6d3fc56 | 2014-08-27 11:47:01 -0700 | [diff] [blame] | 554 | tlsPtr_.stack_begin += read_guard_size + kStackOverflowProtectedSize; |
| 555 | tlsPtr_.stack_end += read_guard_size + kStackOverflowProtectedSize; |
| 556 | tlsPtr_.stack_size -= read_guard_size; |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 557 | |
| 558 | InstallImplicitProtection(); |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 559 | } |
Elliott Hughes | 449b4bd | 2011-09-09 12:01:38 -0700 | [diff] [blame] | 560 | |
| 561 | // Sanity check. |
| 562 | int stack_variable; |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 563 | CHECK_GT(&stack_variable, reinterpret_cast<void*>(tlsPtr_.stack_end)); |
Ian Rogers | f4d4da1 | 2014-11-11 16:10:33 -0800 | [diff] [blame] | 564 | |
| 565 | return true; |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 566 | } |
| 567 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 568 | void Thread::ShortDump(std::ostream& os) const { |
| 569 | os << "Thread["; |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 570 | if (GetThreadId() != 0) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 571 | // If we're in kStarting, we won't have a thin lock id or tid yet. |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 572 | os << GetThreadId() |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 573 | << ",tid=" << GetTid() << ','; |
Elliott Hughes | e091855 | 2011-10-28 17:18:29 -0700 | [diff] [blame] | 574 | } |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 575 | os << GetState() |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 576 | << ",Thread*=" << this |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 577 | << ",peer=" << tlsPtr_.opeer |
| 578 | << ",\"" << *tlsPtr_.name << "\"" |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 579 | << "]"; |
Elliott Hughes | a095764 | 2011-09-02 14:27:33 -0700 | [diff] [blame] | 580 | } |
| 581 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 582 | void Thread::Dump(std::ostream& os) const { |
| 583 | DumpState(os); |
| 584 | DumpStack(os); |
| 585 | } |
| 586 | |
Mathieu Chartier | 2b7c4d1 | 2014-05-19 10:52:16 -0700 | [diff] [blame] | 587 | mirror::String* Thread::GetThreadName(const ScopedObjectAccessAlreadyRunnable& soa) const { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 588 | mirror::ArtField* f = soa.DecodeField(WellKnownClasses::java_lang_Thread_name); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 589 | return (tlsPtr_.opeer != nullptr) ? reinterpret_cast<mirror::String*>(f->GetObject(tlsPtr_.opeer)) : nullptr; |
Elliott Hughes | fc86162 | 2011-10-17 17:57:47 -0700 | [diff] [blame] | 590 | } |
| 591 | |
Elliott Hughes | ffb465f | 2012-03-01 18:46:05 -0800 | [diff] [blame] | 592 | void Thread::GetThreadName(std::string& name) const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 593 | name.assign(*tlsPtr_.name); |
Elliott Hughes | ffb465f | 2012-03-01 18:46:05 -0800 | [diff] [blame] | 594 | } |
| 595 | |
Jeff Hao | 57dac6e | 2013-08-15 16:36:24 -0700 | [diff] [blame] | 596 | uint64_t Thread::GetCpuMicroTime() const { |
Elliott Hughes | 0a18df8 | 2015-01-09 15:16:16 -0800 | [diff] [blame] | 597 | #if defined(__linux__) |
Jeff Hao | 57dac6e | 2013-08-15 16:36:24 -0700 | [diff] [blame] | 598 | clockid_t cpu_clock_id; |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 599 | pthread_getcpuclockid(tlsPtr_.pthread_self, &cpu_clock_id); |
Jeff Hao | 57dac6e | 2013-08-15 16:36:24 -0700 | [diff] [blame] | 600 | timespec now; |
| 601 | clock_gettime(cpu_clock_id, &now); |
Ian Rogers | 0f67847 | 2014-03-10 16:18:37 -0700 | [diff] [blame] | 602 | return static_cast<uint64_t>(now.tv_sec) * UINT64_C(1000000) + now.tv_nsec / UINT64_C(1000); |
Elliott Hughes | 0a18df8 | 2015-01-09 15:16:16 -0800 | [diff] [blame] | 603 | #else // __APPLE__ |
Jeff Hao | 57dac6e | 2013-08-15 16:36:24 -0700 | [diff] [blame] | 604 | UNIMPLEMENTED(WARNING); |
| 605 | return -1; |
| 606 | #endif |
| 607 | } |
| 608 | |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 609 | // Attempt to rectify locks so that we dump thread list with required locks before exiting. |
| 610 | static void UnsafeLogFatalForSuspendCount(Thread* self, Thread* thread) NO_THREAD_SAFETY_ANALYSIS { |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 611 | LOG(ERROR) << *thread << " suspend count already zero."; |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 612 | Locks::thread_suspend_count_lock_->Unlock(self); |
| 613 | if (!Locks::mutator_lock_->IsSharedHeld(self)) { |
| 614 | Locks::mutator_lock_->SharedTryLock(self); |
| 615 | if (!Locks::mutator_lock_->IsSharedHeld(self)) { |
| 616 | LOG(WARNING) << "Dumping thread list without holding mutator_lock_"; |
| 617 | } |
| 618 | } |
| 619 | if (!Locks::thread_list_lock_->IsExclusiveHeld(self)) { |
| 620 | Locks::thread_list_lock_->TryLock(self); |
| 621 | if (!Locks::thread_list_lock_->IsExclusiveHeld(self)) { |
| 622 | LOG(WARNING) << "Dumping thread list without holding thread_list_lock_"; |
| 623 | } |
| 624 | } |
| 625 | std::ostringstream ss; |
Ian Rogers | 7b078e8 | 2014-09-10 14:44:24 -0700 | [diff] [blame] | 626 | Runtime::Current()->GetThreadList()->Dump(ss); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 627 | LOG(FATAL) << ss.str(); |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 628 | } |
| 629 | |
| 630 | void Thread::ModifySuspendCount(Thread* self, int delta, bool for_debugger) { |
Ian Rogers | 2966e13 | 2014-04-02 08:34:36 -0700 | [diff] [blame] | 631 | if (kIsDebugBuild) { |
| 632 | DCHECK(delta == -1 || delta == +1 || delta == -tls32_.debug_suspend_count) |
| 633 | << delta << " " << tls32_.debug_suspend_count << " " << this; |
| 634 | DCHECK_GE(tls32_.suspend_count, tls32_.debug_suspend_count) << this; |
| 635 | Locks::thread_suspend_count_lock_->AssertHeld(self); |
| 636 | if (this != self && !IsSuspended()) { |
| 637 | Locks::thread_list_lock_->AssertHeld(self); |
| 638 | } |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 639 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 640 | if (UNLIKELY(delta < 0 && tls32_.suspend_count <= 0)) { |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 641 | UnsafeLogFatalForSuspendCount(self, this); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 642 | return; |
| 643 | } |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 644 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 645 | tls32_.suspend_count += delta; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 646 | if (for_debugger) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 647 | tls32_.debug_suspend_count += delta; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 648 | } |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 649 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 650 | if (tls32_.suspend_count == 0) { |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 651 | AtomicClearFlag(kSuspendRequest); |
| 652 | } else { |
| 653 | AtomicSetFlag(kSuspendRequest); |
Dave Allison | b373e09 | 2014-02-20 16:06:36 -0800 | [diff] [blame] | 654 | TriggerSuspend(); |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 655 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 656 | } |
| 657 | |
Mathieu Chartier | 752a0e6 | 2013-06-27 11:03:27 -0700 | [diff] [blame] | 658 | void Thread::RunCheckpointFunction() { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 659 | Closure *checkpoints[kMaxCheckpoints]; |
| 660 | |
| 661 | // Grab the suspend_count lock and copy the current set of |
| 662 | // checkpoints. Then clear the list and the flag. The RequestCheckpoint |
| 663 | // function will also grab this lock so we prevent a race between setting |
| 664 | // the kCheckpointRequest flag and clearing it. |
| 665 | { |
| 666 | MutexLock mu(this, *Locks::thread_suspend_count_lock_); |
| 667 | for (uint32_t i = 0; i < kMaxCheckpoints; ++i) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 668 | checkpoints[i] = tlsPtr_.checkpoint_functions[i]; |
| 669 | tlsPtr_.checkpoint_functions[i] = nullptr; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 670 | } |
| 671 | AtomicClearFlag(kCheckpointRequest); |
| 672 | } |
| 673 | |
| 674 | // Outside the lock, run all the checkpoint functions that |
| 675 | // we collected. |
| 676 | bool found_checkpoint = false; |
| 677 | for (uint32_t i = 0; i < kMaxCheckpoints; ++i) { |
| 678 | if (checkpoints[i] != nullptr) { |
| 679 | ATRACE_BEGIN("Checkpoint function"); |
| 680 | checkpoints[i]->Run(this); |
| 681 | ATRACE_END(); |
| 682 | found_checkpoint = true; |
| 683 | } |
| 684 | } |
| 685 | CHECK(found_checkpoint); |
Mathieu Chartier | 752a0e6 | 2013-06-27 11:03:27 -0700 | [diff] [blame] | 686 | } |
| 687 | |
Mathieu Chartier | 0e4627e | 2012-10-23 16:13:36 -0700 | [diff] [blame] | 688 | bool Thread::RequestCheckpoint(Closure* function) { |
Chris Dearman | 59cde53 | 2013-12-04 18:53:49 -0800 | [diff] [blame] | 689 | union StateAndFlags old_state_and_flags; |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 690 | old_state_and_flags.as_int = tls32_.state_and_flags.as_int; |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 691 | if (old_state_and_flags.as_struct.state != kRunnable) { |
| 692 | return false; // Fail, thread is suspended and so can't run a checkpoint. |
| 693 | } |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 694 | |
| 695 | uint32_t available_checkpoint = kMaxCheckpoints; |
| 696 | for (uint32_t i = 0 ; i < kMaxCheckpoints; ++i) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 697 | if (tlsPtr_.checkpoint_functions[i] == nullptr) { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 698 | available_checkpoint = i; |
| 699 | break; |
| 700 | } |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 701 | } |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 702 | if (available_checkpoint == kMaxCheckpoints) { |
| 703 | // No checkpoint functions available, we can't run a checkpoint |
| 704 | return false; |
| 705 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 706 | tlsPtr_.checkpoint_functions[available_checkpoint] = function; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 707 | |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 708 | // Checkpoint function installed now install flag bit. |
Mathieu Chartier | 858f1c5 | 2012-10-17 17:45:55 -0700 | [diff] [blame] | 709 | // We must be runnable to request a checkpoint. |
Mathieu Chartier | 5f51d4b | 2013-12-03 14:24:05 -0800 | [diff] [blame] | 710 | DCHECK_EQ(old_state_and_flags.as_struct.state, kRunnable); |
Chris Dearman | 59cde53 | 2013-12-04 18:53:49 -0800 | [diff] [blame] | 711 | union StateAndFlags new_state_and_flags; |
| 712 | new_state_and_flags.as_int = old_state_and_flags.as_int; |
Mathieu Chartier | 858f1c5 | 2012-10-17 17:45:55 -0700 | [diff] [blame] | 713 | new_state_and_flags.as_struct.flags |= kCheckpointRequest; |
Ian Rogers | 8c1b5f7 | 2014-07-09 22:02:36 -0700 | [diff] [blame] | 714 | bool success = |
| 715 | tls32_.state_and_flags.as_atomic_int.CompareExchangeStrongSequentiallyConsistent(old_state_and_flags.as_int, |
| 716 | new_state_and_flags.as_int); |
| 717 | if (UNLIKELY(!success)) { |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 718 | // The thread changed state before the checkpoint was installed. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 719 | CHECK_EQ(tlsPtr_.checkpoint_functions[available_checkpoint], function); |
| 720 | tlsPtr_.checkpoint_functions[available_checkpoint] = nullptr; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 721 | } else { |
| 722 | CHECK_EQ(ReadFlag(kCheckpointRequest), true); |
Dave Allison | b373e09 | 2014-02-20 16:06:36 -0800 | [diff] [blame] | 723 | TriggerSuspend(); |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 724 | } |
Ian Rogers | 8c1b5f7 | 2014-07-09 22:02:36 -0700 | [diff] [blame] | 725 | return success; |
Mathieu Chartier | 858f1c5 | 2012-10-17 17:45:55 -0700 | [diff] [blame] | 726 | } |
| 727 | |
Hiroshi Yamauchi | 2cd334a | 2015-01-09 14:03:35 -0800 | [diff] [blame] | 728 | Closure* Thread::GetFlipFunction() { |
| 729 | Atomic<Closure*>* atomic_func = reinterpret_cast<Atomic<Closure*>*>(&tlsPtr_.flip_function); |
| 730 | Closure* func; |
| 731 | do { |
| 732 | func = atomic_func->LoadRelaxed(); |
| 733 | if (func == nullptr) { |
| 734 | return nullptr; |
| 735 | } |
| 736 | } while (!atomic_func->CompareExchangeWeakSequentiallyConsistent(func, nullptr)); |
| 737 | DCHECK(func != nullptr); |
| 738 | return func; |
| 739 | } |
| 740 | |
| 741 | void Thread::SetFlipFunction(Closure* function) { |
| 742 | CHECK(function != nullptr); |
| 743 | Atomic<Closure*>* atomic_func = reinterpret_cast<Atomic<Closure*>*>(&tlsPtr_.flip_function); |
| 744 | atomic_func->StoreSequentiallyConsistent(function); |
| 745 | } |
| 746 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 747 | void Thread::FullSuspendCheck() { |
| 748 | VLOG(threads) << this << " self-suspending"; |
Mathieu Chartier | 752a0e6 | 2013-06-27 11:03:27 -0700 | [diff] [blame] | 749 | ATRACE_BEGIN("Full suspend check"); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 750 | // Make thread appear suspended to other threads, release mutator_lock_. |
Hiroshi Yamauchi | 2cd334a | 2015-01-09 14:03:35 -0800 | [diff] [blame] | 751 | tls32_.suspended_at_suspend_check = true; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 752 | TransitionFromRunnableToSuspended(kSuspended); |
| 753 | // Transition back to runnable noting requests to suspend, re-acquire share on mutator_lock_. |
| 754 | TransitionFromSuspendedToRunnable(); |
Hiroshi Yamauchi | 2cd334a | 2015-01-09 14:03:35 -0800 | [diff] [blame] | 755 | tls32_.suspended_at_suspend_check = false; |
Mathieu Chartier | 752a0e6 | 2013-06-27 11:03:27 -0700 | [diff] [blame] | 756 | ATRACE_END(); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 757 | VLOG(threads) << this << " self-reviving"; |
| 758 | } |
| 759 | |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 760 | void Thread::DumpState(std::ostream& os, const Thread* thread, pid_t tid) { |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 761 | std::string group_name; |
| 762 | int priority; |
| 763 | bool is_daemon = false; |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 764 | Thread* self = Thread::Current(); |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 765 | |
Hiroshi Yamauchi | 2cd334a | 2015-01-09 14:03:35 -0800 | [diff] [blame] | 766 | // If flip_function is not null, it means we have run a checkpoint |
| 767 | // before the thread wakes up to execute the flip function and the |
| 768 | // thread roots haven't been forwarded. So the following access to |
| 769 | // the roots (opeer or methods in the frames) would be bad. Run it |
| 770 | // here. TODO: clean up. |
| 771 | if (thread != nullptr) { |
| 772 | ScopedObjectAccessUnchecked soa(self); |
| 773 | Thread* this_thread = const_cast<Thread*>(thread); |
| 774 | Closure* flip_func = this_thread->GetFlipFunction(); |
| 775 | if (flip_func != nullptr) { |
| 776 | flip_func->Run(this_thread); |
| 777 | } |
| 778 | } |
| 779 | |
Mathieu Chartier | c7a966d | 2014-04-10 18:06:32 -0700 | [diff] [blame] | 780 | // Don't do this if we are aborting since the GC may have all the threads suspended. This will |
| 781 | // cause ScopedObjectAccessUnchecked to deadlock. |
Nicolas Geoffray | db97871 | 2014-12-09 13:33:38 +0000 | [diff] [blame] | 782 | if (gAborting == 0 && self != nullptr && thread != nullptr && thread->tlsPtr_.opeer != nullptr) { |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 783 | ScopedObjectAccessUnchecked soa(self); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 784 | priority = soa.DecodeField(WellKnownClasses::java_lang_Thread_priority) |
| 785 | ->GetInt(thread->tlsPtr_.opeer); |
| 786 | is_daemon = soa.DecodeField(WellKnownClasses::java_lang_Thread_daemon) |
| 787 | ->GetBoolean(thread->tlsPtr_.opeer); |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 788 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 789 | mirror::Object* thread_group = |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 790 | soa.DecodeField(WellKnownClasses::java_lang_Thread_group)->GetObject(thread->tlsPtr_.opeer); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 791 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 792 | if (thread_group != nullptr) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 793 | mirror::ArtField* group_name_field = |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 794 | soa.DecodeField(WellKnownClasses::java_lang_ThreadGroup_name); |
| 795 | mirror::String* group_name_string = |
| 796 | reinterpret_cast<mirror::String*>(group_name_field->GetObject(thread_group)); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 797 | group_name = (group_name_string != nullptr) ? group_name_string->ToModifiedUtf8() : "<null>"; |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 798 | } |
| 799 | } else { |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 800 | priority = GetNativePriority(); |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 801 | } |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 802 | |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 803 | std::string scheduler_group_name(GetSchedulerGroupName(tid)); |
Elliott Hughes | 1bac54f | 2012-03-16 12:48:31 -0700 | [diff] [blame] | 804 | if (scheduler_group_name.empty()) { |
| 805 | scheduler_group_name = "default"; |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 806 | } |
| 807 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 808 | if (thread != nullptr) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 809 | os << '"' << *thread->tlsPtr_.name << '"'; |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 810 | if (is_daemon) { |
| 811 | os << " daemon"; |
| 812 | } |
| 813 | os << " prio=" << priority |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 814 | << " tid=" << thread->GetThreadId() |
Elliott Hughes | 80537bb | 2013-01-04 16:37:26 -0800 | [diff] [blame] | 815 | << " " << thread->GetState(); |
| 816 | if (thread->IsStillStarting()) { |
| 817 | os << " (still starting up)"; |
| 818 | } |
| 819 | os << "\n"; |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 820 | } else { |
Elliott Hughes | 289be85 | 2012-06-12 13:57:20 -0700 | [diff] [blame] | 821 | os << '"' << ::art::GetThreadName(tid) << '"' |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 822 | << " prio=" << priority |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 823 | << " (not attached)\n"; |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 824 | } |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 825 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 826 | if (thread != nullptr) { |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 827 | MutexLock mu(self, *Locks::thread_suspend_count_lock_); |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 828 | os << " | group=\"" << group_name << "\"" |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 829 | << " sCount=" << thread->tls32_.suspend_count |
| 830 | << " dsCount=" << thread->tls32_.debug_suspend_count |
| 831 | << " obj=" << reinterpret_cast<void*>(thread->tlsPtr_.opeer) |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 832 | << " self=" << reinterpret_cast<const void*>(thread) << "\n"; |
| 833 | } |
Elliott Hughes | 0d39c12 | 2012-06-06 16:41:17 -0700 | [diff] [blame] | 834 | |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 835 | os << " | sysTid=" << tid |
| 836 | << " nice=" << getpriority(PRIO_PROCESS, tid) |
Elliott Hughes | 0d39c12 | 2012-06-06 16:41:17 -0700 | [diff] [blame] | 837 | << " cgrp=" << scheduler_group_name; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 838 | if (thread != nullptr) { |
Elliott Hughes | 0d39c12 | 2012-06-06 16:41:17 -0700 | [diff] [blame] | 839 | int policy; |
| 840 | sched_param sp; |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 841 | CHECK_PTHREAD_CALL(pthread_getschedparam, (thread->tlsPtr_.pthread_self, &policy, &sp), |
| 842 | __FUNCTION__); |
Elliott Hughes | 0d39c12 | 2012-06-06 16:41:17 -0700 | [diff] [blame] | 843 | os << " sched=" << policy << "/" << sp.sched_priority |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 844 | << " handle=" << reinterpret_cast<void*>(thread->tlsPtr_.pthread_self); |
Elliott Hughes | 0d39c12 | 2012-06-06 16:41:17 -0700 | [diff] [blame] | 845 | } |
| 846 | os << "\n"; |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 847 | |
| 848 | // Grab the scheduler stats for this thread. |
| 849 | std::string scheduler_stats; |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 850 | if (ReadFileToString(StringPrintf("/proc/self/task/%d/schedstat", tid), &scheduler_stats)) { |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 851 | scheduler_stats.resize(scheduler_stats.size() - 1); // Lose the trailing '\n'. |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 852 | } else { |
| 853 | scheduler_stats = "0 0 0"; |
| 854 | } |
| 855 | |
Elliott Hughes | ba0b9c5 | 2012-09-20 11:25:12 -0700 | [diff] [blame] | 856 | char native_thread_state = '?'; |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 857 | int utime = 0; |
| 858 | int stime = 0; |
| 859 | int task_cpu = 0; |
Brian Carlstrom | 2921201 | 2013-09-12 22:18:30 -0700 | [diff] [blame] | 860 | GetTaskStats(tid, &native_thread_state, &utime, &stime, &task_cpu); |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 861 | |
Elliott Hughes | ba0b9c5 | 2012-09-20 11:25:12 -0700 | [diff] [blame] | 862 | os << " | state=" << native_thread_state |
| 863 | << " schedstat=( " << scheduler_stats << " )" |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 864 | << " utm=" << utime |
| 865 | << " stm=" << stime |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 866 | << " core=" << task_cpu |
| 867 | << " HZ=" << sysconf(_SC_CLK_TCK) << "\n"; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 868 | if (thread != nullptr) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 869 | os << " | stack=" << reinterpret_cast<void*>(thread->tlsPtr_.stack_begin) << "-" |
| 870 | << reinterpret_cast<void*>(thread->tlsPtr_.stack_end) << " stackSize=" |
| 871 | << PrettySize(thread->tlsPtr_.stack_size) << "\n"; |
Mathieu Chartier | 9db911e | 2014-06-04 11:23:58 -0700 | [diff] [blame] | 872 | // Dump the held mutexes. |
| 873 | os << " | held mutexes="; |
| 874 | for (size_t i = 0; i < kLockLevelCount; ++i) { |
| 875 | if (i != kMonitorLock) { |
| 876 | BaseMutex* mutex = thread->GetHeldMutex(static_cast<LockLevel>(i)); |
| 877 | if (mutex != nullptr) { |
| 878 | os << " \"" << mutex->GetName() << "\""; |
| 879 | if (mutex->IsReaderWriterMutex()) { |
| 880 | ReaderWriterMutex* rw_mutex = down_cast<ReaderWriterMutex*>(mutex); |
Ian Rogers | a9d8c4c | 2014-07-07 21:38:36 -0700 | [diff] [blame] | 881 | if (rw_mutex->GetExclusiveOwnerTid() == static_cast<uint64_t>(tid)) { |
Mathieu Chartier | 9db911e | 2014-06-04 11:23:58 -0700 | [diff] [blame] | 882 | os << "(exclusive held)"; |
| 883 | } else { |
Mathieu Chartier | 9db911e | 2014-06-04 11:23:58 -0700 | [diff] [blame] | 884 | os << "(shared held)"; |
| 885 | } |
| 886 | } |
| 887 | } |
| 888 | } |
| 889 | } |
| 890 | os << "\n"; |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 891 | } |
| 892 | } |
| 893 | |
| 894 | void Thread::DumpState(std::ostream& os) const { |
| 895 | Thread::DumpState(os, this, GetTid()); |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 896 | } |
| 897 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 898 | struct StackDumpVisitor : public StackVisitor { |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 899 | StackDumpVisitor(std::ostream& os_in, Thread* thread_in, Context* context, bool can_allocate_in) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 900 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
Andreas Gampe | 277ccbd | 2014-11-03 21:36:10 -0800 | [diff] [blame] | 901 | : StackVisitor(thread_in, context), os(os_in), thread(thread_in), |
| 902 | can_allocate(can_allocate_in), last_method(nullptr), last_line_number(0), |
| 903 | repetition_count(0), frame_count(0) { |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 904 | } |
| 905 | |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 906 | virtual ~StackDumpVisitor() { |
Elliott Hughes | e85d2e9 | 2012-05-01 14:02:10 -0700 | [diff] [blame] | 907 | if (frame_count == 0) { |
| 908 | os << " (no managed stack frames)\n"; |
| 909 | } |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 910 | } |
| 911 | |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 912 | bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 913 | mirror::ArtMethod* m = GetMethod(); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 914 | if (m->IsRuntimeMethod()) { |
Elliott Hughes | 530fa00 | 2012-03-12 11:44:49 -0700 | [diff] [blame] | 915 | return true; |
Ian Rogers | 9086572 | 2011-09-19 11:11:44 -0700 | [diff] [blame] | 916 | } |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 917 | const int kMaxRepetition = 3; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 918 | mirror::Class* c = m->GetDeclaringClass(); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 919 | mirror::DexCache* dex_cache = c->GetDexCache(); |
Ian Rogers | b861dc0 | 2011-11-14 17:00:05 -0800 | [diff] [blame] | 920 | int line_number = -1; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 921 | if (dex_cache != nullptr) { // be tolerant of bad input |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 922 | const DexFile& dex_file = *dex_cache->GetDexFile(); |
Mathieu Chartier | c751fdc | 2014-03-30 15:25:44 -0700 | [diff] [blame] | 923 | line_number = dex_file.GetLineNumFromPC(m, GetDexPc(false)); |
Ian Rogers | b861dc0 | 2011-11-14 17:00:05 -0800 | [diff] [blame] | 924 | } |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 925 | if (line_number == last_line_number && last_method == m) { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 926 | ++repetition_count; |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 927 | } else { |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 928 | if (repetition_count >= kMaxRepetition) { |
| 929 | os << " ... repeated " << (repetition_count - kMaxRepetition) << " times\n"; |
| 930 | } |
| 931 | repetition_count = 0; |
| 932 | last_line_number = line_number; |
| 933 | last_method = m; |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 934 | } |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 935 | if (repetition_count < kMaxRepetition) { |
| 936 | os << " at " << PrettyMethod(m, false); |
| 937 | if (m->IsNative()) { |
| 938 | os << "(Native method)"; |
| 939 | } else { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 940 | const char* source_file(m->GetDeclaringClassSourceFile()); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 941 | os << "(" << (source_file != nullptr ? source_file : "unavailable") |
Brian Carlstrom | 2e450bf | 2013-09-06 15:39:46 -0700 | [diff] [blame] | 942 | << ":" << line_number << ")"; |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 943 | } |
| 944 | os << "\n"; |
Elliott Hughes | 08fc03a | 2012-06-26 17:34:00 -0700 | [diff] [blame] | 945 | if (frame_count == 0) { |
| 946 | Monitor::DescribeWait(os, thread); |
| 947 | } |
| 948 | if (can_allocate) { |
Andreas Gampe | 956a522 | 2014-08-16 13:41:10 -0700 | [diff] [blame] | 949 | // Visit locks, but do not abort on errors. This would trigger a nested abort. |
| 950 | Monitor::VisitLocks(this, DumpLockedObject, &os, false); |
Elliott Hughes | 08fc03a | 2012-06-26 17:34:00 -0700 | [diff] [blame] | 951 | } |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 952 | } |
Elliott Hughes | 8e4aac5 | 2011-09-26 17:03:36 -0700 | [diff] [blame] | 953 | |
Elliott Hughes | 08fc03a | 2012-06-26 17:34:00 -0700 | [diff] [blame] | 954 | ++frame_count; |
Elliott Hughes | 530fa00 | 2012-03-12 11:44:49 -0700 | [diff] [blame] | 955 | return true; |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 956 | } |
Elliott Hughes | 4993bbc | 2013-01-10 15:41:25 -0800 | [diff] [blame] | 957 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 958 | static void DumpLockedObject(mirror::Object* o, void* context) |
Elliott Hughes | 4993bbc | 2013-01-10 15:41:25 -0800 | [diff] [blame] | 959 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 960 | std::ostream& os = *reinterpret_cast<std::ostream*>(context); |
Ian Rogers | d803bc7 | 2014-04-01 15:33:03 -0700 | [diff] [blame] | 961 | os << " - locked "; |
| 962 | if (o == nullptr) { |
| 963 | os << "an unknown object"; |
| 964 | } else { |
Mathieu Chartier | 4d7f61d | 2014-04-17 14:43:39 -0700 | [diff] [blame] | 965 | if ((o->GetLockWord(false).GetState() == LockWord::kThinLocked) && |
Ian Rogers | d803bc7 | 2014-04-01 15:33:03 -0700 | [diff] [blame] | 966 | Locks::mutator_lock_->IsExclusiveHeld(Thread::Current())) { |
| 967 | // Getting the identity hashcode here would result in lock inflation and suspension of the |
| 968 | // current thread, which isn't safe if this is the only runnable thread. |
| 969 | os << StringPrintf("<@addr=0x%" PRIxPTR "> (a %s)", reinterpret_cast<intptr_t>(o), |
| 970 | PrettyTypeOf(o).c_str()); |
| 971 | } else { |
Mathieu Chartier | e6a8eec | 2015-01-06 14:17:57 -0800 | [diff] [blame] | 972 | // IdentityHashCode can cause thread suspension, which would invalidate o if it moved. So |
| 973 | // we get the pretty type beofre we call IdentityHashCode. |
| 974 | const std::string pretty_type(PrettyTypeOf(o)); |
| 975 | os << StringPrintf("<0x%08x> (a %s)", o->IdentityHashCode(), pretty_type.c_str()); |
Ian Rogers | d803bc7 | 2014-04-01 15:33:03 -0700 | [diff] [blame] | 976 | } |
| 977 | } |
| 978 | os << "\n"; |
Elliott Hughes | 4993bbc | 2013-01-10 15:41:25 -0800 | [diff] [blame] | 979 | } |
| 980 | |
Elliott Hughes | 08fc03a | 2012-06-26 17:34:00 -0700 | [diff] [blame] | 981 | std::ostream& os; |
| 982 | const Thread* thread; |
Ian Rogers | 0878d65 | 2013-04-18 17:38:35 -0700 | [diff] [blame] | 983 | const bool can_allocate; |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 984 | mirror::ArtMethod* last_method; |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 985 | int last_line_number; |
| 986 | int repetition_count; |
Elliott Hughes | 8e4aac5 | 2011-09-26 17:03:36 -0700 | [diff] [blame] | 987 | int frame_count; |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 988 | }; |
| 989 | |
Ian Rogers | 33e9566 | 2013-05-20 20:29:14 -0700 | [diff] [blame] | 990 | static bool ShouldShowNativeStack(const Thread* thread) |
| 991 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Elliott Hughes | aef701d | 2013-04-05 18:15:40 -0700 | [diff] [blame] | 992 | ThreadState state = thread->GetState(); |
| 993 | |
| 994 | // In native code somewhere in the VM (one of the kWaitingFor* states)? That's interesting. |
| 995 | if (state > kWaiting && state < kStarting) { |
| 996 | return true; |
| 997 | } |
| 998 | |
| 999 | // In an Object.wait variant or Thread.sleep? That's not interesting. |
| 1000 | if (state == kTimedWaiting || state == kSleeping || state == kWaiting) { |
| 1001 | return false; |
| 1002 | } |
| 1003 | |
Christopher Ferris | 2366f4e | 2014-09-19 17:23:59 -0700 | [diff] [blame] | 1004 | // Threads with no managed stack frames should be shown. |
| 1005 | const ManagedStack* managed_stack = thread->GetManagedStack(); |
| 1006 | if (managed_stack == NULL || (managed_stack->GetTopQuickFrame() == NULL && |
| 1007 | managed_stack->GetTopShadowFrame() == NULL)) { |
| 1008 | return true; |
| 1009 | } |
| 1010 | |
Elliott Hughes | aef701d | 2013-04-05 18:15:40 -0700 | [diff] [blame] | 1011 | // In some other native method? That's interesting. |
| 1012 | // We don't just check kNative because native methods will be in state kSuspended if they're |
| 1013 | // calling back into the VM, or kBlocked if they're blocked on a monitor, or one of the |
| 1014 | // thread-startup states if it's early enough in their life cycle (http://b/7432159). |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1015 | mirror::ArtMethod* current_method = thread->GetCurrentMethod(nullptr); |
| 1016 | return current_method != nullptr && current_method->IsNative(); |
Elliott Hughes | aef701d | 2013-04-05 18:15:40 -0700 | [diff] [blame] | 1017 | } |
| 1018 | |
Mathieu Chartier | c751fdc | 2014-03-30 15:25:44 -0700 | [diff] [blame] | 1019 | void Thread::DumpJavaStack(std::ostream& os) const { |
Hiroshi Yamauchi | 2cd334a | 2015-01-09 14:03:35 -0800 | [diff] [blame] | 1020 | // If flip_function is not null, it means we have run a checkpoint |
| 1021 | // before the thread wakes up to execute the flip function and the |
| 1022 | // thread roots haven't been forwarded. So the following access to |
| 1023 | // the roots (locks or methods in the frames) would be bad. Run it |
| 1024 | // here. TODO: clean up. |
| 1025 | { |
| 1026 | Thread* this_thread = const_cast<Thread*>(this); |
| 1027 | Closure* flip_func = this_thread->GetFlipFunction(); |
| 1028 | if (flip_func != nullptr) { |
| 1029 | flip_func->Run(this_thread); |
| 1030 | } |
| 1031 | } |
| 1032 | |
Andreas Gampe | 986c6fb | 2014-10-02 21:00:06 -0700 | [diff] [blame] | 1033 | // Dumping the Java stack involves the verifier for locks. The verifier operates under the |
| 1034 | // assumption that there is no exception pending on entry. Thus, stash any pending exception. |
Mathieu Chartier | bef89c9 | 2015-01-09 09:46:49 -0800 | [diff] [blame] | 1035 | // Thread::Current() instead of this in case a thread is dumping the stack of another suspended |
| 1036 | // thread. |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 1037 | StackHandleScope<1> scope(Thread::Current()); |
Andreas Gampe | 986c6fb | 2014-10-02 21:00:06 -0700 | [diff] [blame] | 1038 | Handle<mirror::Throwable> exc; |
Andreas Gampe | 986c6fb | 2014-10-02 21:00:06 -0700 | [diff] [blame] | 1039 | bool have_exception = false; |
| 1040 | if (IsExceptionPending()) { |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 1041 | exc = scope.NewHandle(GetException()); |
Andreas Gampe | 986c6fb | 2014-10-02 21:00:06 -0700 | [diff] [blame] | 1042 | const_cast<Thread*>(this)->ClearException(); |
| 1043 | have_exception = true; |
| 1044 | } |
| 1045 | |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 1046 | std::unique_ptr<Context> context(Context::Create()); |
Mathieu Chartier | c751fdc | 2014-03-30 15:25:44 -0700 | [diff] [blame] | 1047 | StackDumpVisitor dumper(os, const_cast<Thread*>(this), context.get(), |
| 1048 | !tls32_.throwing_OutOfMemoryError); |
| 1049 | dumper.WalkStack(); |
Andreas Gampe | 986c6fb | 2014-10-02 21:00:06 -0700 | [diff] [blame] | 1050 | |
| 1051 | if (have_exception) { |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 1052 | const_cast<Thread*>(this)->SetException(exc.Get()); |
Andreas Gampe | 986c6fb | 2014-10-02 21:00:06 -0700 | [diff] [blame] | 1053 | } |
Mathieu Chartier | c751fdc | 2014-03-30 15:25:44 -0700 | [diff] [blame] | 1054 | } |
| 1055 | |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 1056 | void Thread::DumpStack(std::ostream& os) const { |
Jeff Hao | ed1790e | 2013-04-12 09:58:14 -0700 | [diff] [blame] | 1057 | // TODO: we call this code when dying but may not have suspended the thread ourself. The |
| 1058 | // IsSuspended check is therefore racy with the use for dumping (normally we inhibit |
| 1059 | // the race with the thread_suspend_count_lock_). |
Ian Rogers | eef2e54 | 2014-06-24 22:48:01 -0700 | [diff] [blame] | 1060 | bool dump_for_abort = (gAborting > 0); |
| 1061 | bool safe_to_dump = (this == Thread::Current() || IsSuspended()); |
| 1062 | if (!kIsDebugBuild) { |
| 1063 | // We always want to dump the stack for an abort, however, there is no point dumping another |
| 1064 | // thread's stack in debug builds where we'll hit the not suspended check in the stack walk. |
| 1065 | safe_to_dump = (safe_to_dump || dump_for_abort); |
| 1066 | } |
| 1067 | if (safe_to_dump) { |
Ian Rogers | f08e473 | 2013-04-09 09:45:49 -0700 | [diff] [blame] | 1068 | // If we're currently in native code, dump that stack before dumping the managed stack. |
Ian Rogers | d090cf4 | 2013-06-06 15:35:18 -0700 | [diff] [blame] | 1069 | if (dump_for_abort || ShouldShowNativeStack(this)) { |
Ian Rogers | f08e473 | 2013-04-09 09:45:49 -0700 | [diff] [blame] | 1070 | DumpKernelStack(os, GetTid(), " kernel: ", false); |
Andreas Gampe | 2f0751e | 2015-04-03 14:36:07 -0700 | [diff] [blame] | 1071 | // b/20040863. Temporary workaround for x86 libunwind issue. |
| 1072 | #if defined(__i386__) && defined(HAVE_ANDROID_OS) |
| 1073 | os << "Cannot dump native stack. b/20040863.\n"; |
| 1074 | #else |
Andreas Gampe | b2f5dbb | 2014-09-16 15:15:13 -0700 | [diff] [blame] | 1075 | DumpNativeStack(os, GetTid(), " native: ", GetCurrentMethod(nullptr, !dump_for_abort)); |
Andreas Gampe | 2f0751e | 2015-04-03 14:36:07 -0700 | [diff] [blame] | 1076 | #endif |
Ian Rogers | f08e473 | 2013-04-09 09:45:49 -0700 | [diff] [blame] | 1077 | } |
Mathieu Chartier | c751fdc | 2014-03-30 15:25:44 -0700 | [diff] [blame] | 1078 | DumpJavaStack(os); |
Ian Rogers | f08e473 | 2013-04-09 09:45:49 -0700 | [diff] [blame] | 1079 | } else { |
| 1080 | os << "Not able to dump stack of thread that isn't suspended"; |
Elliott Hughes | ffb465f | 2012-03-01 18:46:05 -0800 | [diff] [blame] | 1081 | } |
Elliott Hughes | e27955c | 2011-08-26 15:21:24 -0700 | [diff] [blame] | 1082 | } |
| 1083 | |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 1084 | void Thread::ThreadExitCallback(void* arg) { |
| 1085 | Thread* self = reinterpret_cast<Thread*>(arg); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1086 | if (self->tls32_.thread_exit_check_count == 0) { |
| 1087 | LOG(WARNING) << "Native thread exiting without having called DetachCurrentThread (maybe it's " |
| 1088 | "going to use a pthread_key_create destructor?): " << *self; |
Ian Rogers | 0878d65 | 2013-04-18 17:38:35 -0700 | [diff] [blame] | 1089 | CHECK(is_started_); |
Elliott Hughes | 6a607ad | 2012-07-13 20:40:00 -0700 | [diff] [blame] | 1090 | CHECK_PTHREAD_CALL(pthread_setspecific, (Thread::pthread_key_self_, self), "reattach self"); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1091 | self->tls32_.thread_exit_check_count = 1; |
Elliott Hughes | 6a607ad | 2012-07-13 20:40:00 -0700 | [diff] [blame] | 1092 | } else { |
| 1093 | LOG(FATAL) << "Native thread exited without calling DetachCurrentThread: " << *self; |
| 1094 | } |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 1095 | } |
| 1096 | |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 1097 | void Thread::Startup() { |
Ian Rogers | 0878d65 | 2013-04-18 17:38:35 -0700 | [diff] [blame] | 1098 | CHECK(!is_started_); |
| 1099 | is_started_ = true; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1100 | { |
Brian Carlstrom | 6d69f59 | 2013-07-16 17:18:16 -0700 | [diff] [blame] | 1101 | // MutexLock to keep annotalysis happy. |
| 1102 | // |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1103 | // Note we use nullptr for the thread because Thread::Current can |
Brian Carlstrom | 6d69f59 | 2013-07-16 17:18:16 -0700 | [diff] [blame] | 1104 | // return garbage since (is_started_ == true) and |
| 1105 | // Thread::pthread_key_self_ is not yet initialized. |
| 1106 | // This was seen on glibc. |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1107 | MutexLock mu(nullptr, *Locks::thread_suspend_count_lock_); |
Ian Rogers | c604d73 | 2012-10-14 16:09:54 -0700 | [diff] [blame] | 1108 | resume_cond_ = new ConditionVariable("Thread resumption condition variable", |
| 1109 | *Locks::thread_suspend_count_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1110 | } |
| 1111 | |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 1112 | // Allocate a TLS slot. |
Ian Rogers | f4d4da1 | 2014-11-11 16:10:33 -0800 | [diff] [blame] | 1113 | CHECK_PTHREAD_CALL(pthread_key_create, (&Thread::pthread_key_self_, Thread::ThreadExitCallback), |
| 1114 | "self key"); |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 1115 | |
| 1116 | // Double-check the TLS slot allocation. |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1117 | if (pthread_getspecific(pthread_key_self_) != nullptr) { |
| 1118 | LOG(FATAL) << "Newly-created pthread TLS slot is not nullptr"; |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 1119 | } |
Elliott Hughes | 038a806 | 2011-09-18 14:12:41 -0700 | [diff] [blame] | 1120 | } |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 1121 | |
Elliott Hughes | 038a806 | 2011-09-18 14:12:41 -0700 | [diff] [blame] | 1122 | void Thread::FinishStartup() { |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1123 | Runtime* runtime = Runtime::Current(); |
| 1124 | CHECK(runtime->IsStarted()); |
Brian Carlstrom | b82b687 | 2011-10-26 17:18:07 -0700 | [diff] [blame] | 1125 | |
Elliott Hughes | 01158d7 | 2011-09-19 19:47:10 -0700 | [diff] [blame] | 1126 | // Finish attaching the main thread. |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1127 | ScopedObjectAccess soa(Thread::Current()); |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1128 | Thread::Current()->CreatePeer("main", false, runtime->GetMainThreadGroup()); |
Jesse Wilson | 9a6bae8 | 2011-11-14 14:57:30 -0500 | [diff] [blame] | 1129 | |
Elliott Hughes | af8d15a | 2012-05-29 09:12:18 -0700 | [diff] [blame] | 1130 | Runtime::Current()->GetClassLinker()->RunRootClinits(); |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 1131 | } |
| 1132 | |
Elliott Hughes | c1674ed | 2011-08-25 18:09:09 -0700 | [diff] [blame] | 1133 | void Thread::Shutdown() { |
Ian Rogers | 0878d65 | 2013-04-18 17:38:35 -0700 | [diff] [blame] | 1134 | CHECK(is_started_); |
| 1135 | is_started_ = false; |
Elliott Hughes | 8d768a9 | 2011-09-14 16:35:25 -0700 | [diff] [blame] | 1136 | CHECK_PTHREAD_CALL(pthread_key_delete, (Thread::pthread_key_self_), "self key"); |
Ian Rogers | 33e9566 | 2013-05-20 20:29:14 -0700 | [diff] [blame] | 1137 | MutexLock mu(Thread::Current(), *Locks::thread_suspend_count_lock_); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1138 | if (resume_cond_ != nullptr) { |
Ian Rogers | 0878d65 | 2013-04-18 17:38:35 -0700 | [diff] [blame] | 1139 | delete resume_cond_; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1140 | resume_cond_ = nullptr; |
Ian Rogers | 0878d65 | 2013-04-18 17:38:35 -0700 | [diff] [blame] | 1141 | } |
Elliott Hughes | c1674ed | 2011-08-25 18:09:09 -0700 | [diff] [blame] | 1142 | } |
| 1143 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1144 | Thread::Thread(bool daemon) : tls32_(daemon), wait_monitor_(nullptr), interrupted_(false) { |
| 1145 | wait_mutex_ = new Mutex("a thread wait mutex"); |
| 1146 | wait_cond_ = new ConditionVariable("a thread wait condition variable", *wait_mutex_); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1147 | tlsPtr_.instrumentation_stack = new std::deque<instrumentation::InstrumentationStackFrame>; |
| 1148 | tlsPtr_.name = new std::string(kThreadNameDuringStartup); |
Dave Allison | 8ce6b90 | 2014-08-26 11:07:58 -0700 | [diff] [blame] | 1149 | tlsPtr_.nested_signal_state = static_cast<jmp_buf*>(malloc(sizeof(jmp_buf))); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1150 | |
Elliott Hughes | f5a7a47 | 2011-10-07 14:31:02 -0700 | [diff] [blame] | 1151 | CHECK_EQ((sizeof(Thread) % 4), 0U) << sizeof(Thread); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1152 | tls32_.state_and_flags.as_struct.flags = 0; |
| 1153 | tls32_.state_and_flags.as_struct.state = kNative; |
| 1154 | memset(&tlsPtr_.held_mutexes[0], 0, sizeof(tlsPtr_.held_mutexes)); |
Mathieu Chartier | 0651d41 | 2014-04-29 14:37:57 -0700 | [diff] [blame] | 1155 | std::fill(tlsPtr_.rosalloc_runs, |
Ian Rogers | e63db27 | 2014-07-15 15:36:11 -0700 | [diff] [blame] | 1156 | tlsPtr_.rosalloc_runs + kNumRosAllocThreadLocalSizeBrackets, |
Mathieu Chartier | 73d1e17 | 2014-04-11 17:53:48 -0700 | [diff] [blame] | 1157 | gc::allocator::RosAlloc::GetDedicatedFullRun()); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1158 | for (uint32_t i = 0; i < kMaxCheckpoints; ++i) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1159 | tlsPtr_.checkpoint_functions[i] = nullptr; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1160 | } |
Hiroshi Yamauchi | 2cd334a | 2015-01-09 14:03:35 -0800 | [diff] [blame] | 1161 | tlsPtr_.flip_function = nullptr; |
| 1162 | tls32_.suspended_at_suspend_check = false; |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 1163 | } |
| 1164 | |
Elliott Hughes | 7dc5166 | 2012-05-16 14:48:43 -0700 | [diff] [blame] | 1165 | bool Thread::IsStillStarting() const { |
| 1166 | // You might think you can check whether the state is kStarting, but for much of thread startup, |
Elliott Hughes | 80537bb | 2013-01-04 16:37:26 -0800 | [diff] [blame] | 1167 | // the thread is in kNative; it might also be in kVmWait. |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1168 | // You might think you can check whether the peer is nullptr, but the peer is actually created and |
Elliott Hughes | 7dc5166 | 2012-05-16 14:48:43 -0700 | [diff] [blame] | 1169 | // assigned fairly early on, and needs to be. |
| 1170 | // It turns out that the last thing to change is the thread name; that's a good proxy for "has |
| 1171 | // this thread _ever_ entered kRunnable". |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1172 | return (tlsPtr_.jpeer == nullptr && tlsPtr_.opeer == nullptr) || |
| 1173 | (*tlsPtr_.name == kThreadNameDuringStartup); |
Elliott Hughes | 7dc5166 | 2012-05-16 14:48:43 -0700 | [diff] [blame] | 1174 | } |
| 1175 | |
Andreas Gampe | d9efea6 | 2014-07-21 22:56:08 -0700 | [diff] [blame] | 1176 | void Thread::AssertPendingException() const { |
| 1177 | if (UNLIKELY(!IsExceptionPending())) { |
| 1178 | LOG(FATAL) << "Pending exception expected."; |
| 1179 | } |
| 1180 | } |
| 1181 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1182 | void Thread::AssertNoPendingException() const { |
| 1183 | if (UNLIKELY(IsExceptionPending())) { |
| 1184 | ScopedObjectAccess soa(Thread::Current()); |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 1185 | mirror::Throwable* exception = GetException(); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1186 | LOG(FATAL) << "No pending exception expected: " << exception->Dump(); |
| 1187 | } |
| 1188 | } |
| 1189 | |
Mathieu Chartier | 8d7672e | 2014-02-25 10:57:16 -0800 | [diff] [blame] | 1190 | void Thread::AssertNoPendingExceptionForNewException(const char* msg) const { |
| 1191 | if (UNLIKELY(IsExceptionPending())) { |
| 1192 | ScopedObjectAccess soa(Thread::Current()); |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 1193 | mirror::Throwable* exception = GetException(); |
Ian Rogers | c114b5f | 2014-07-21 08:55:01 -0700 | [diff] [blame] | 1194 | LOG(FATAL) << "Throwing new exception '" << msg << "' with unexpected pending exception: " |
Mathieu Chartier | 8d7672e | 2014-02-25 10:57:16 -0800 | [diff] [blame] | 1195 | << exception->Dump(); |
| 1196 | } |
| 1197 | } |
| 1198 | |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 1199 | class MonitorExitVisitor : public SingleRootVisitor { |
| 1200 | public: |
| 1201 | explicit MonitorExitVisitor(Thread* self) : self_(self) { } |
| 1202 | |
| 1203 | // NO_THREAD_SAFETY_ANALYSIS due to MonitorExit. |
| 1204 | void VisitRoot(mirror::Object* entered_monitor, const RootInfo& info ATTRIBUTE_UNUSED) |
| 1205 | OVERRIDE NO_THREAD_SAFETY_ANALYSIS { |
| 1206 | if (self_->HoldsLock(entered_monitor)) { |
| 1207 | LOG(WARNING) << "Calling MonitorExit on object " |
| 1208 | << entered_monitor << " (" << PrettyTypeOf(entered_monitor) << ")" |
| 1209 | << " left locked by native thread " |
| 1210 | << *Thread::Current() << " which is detaching"; |
| 1211 | entered_monitor->MonitorExit(self_); |
| 1212 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1213 | } |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 1214 | |
| 1215 | private: |
| 1216 | Thread* const self_; |
| 1217 | }; |
Elliott Hughes | 02b48d1 | 2011-09-07 17:15:51 -0700 | [diff] [blame] | 1218 | |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 1219 | void Thread::Destroy() { |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 1220 | Thread* self = this; |
| 1221 | DCHECK_EQ(self, Thread::Current()); |
Elliott Hughes | 02b48d1 | 2011-09-07 17:15:51 -0700 | [diff] [blame] | 1222 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1223 | if (tlsPtr_.jni_env != nullptr) { |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 1224 | { |
| 1225 | ScopedObjectAccess soa(self); |
| 1226 | MonitorExitVisitor visitor(self); |
| 1227 | // On thread detach, all monitors entered with JNI MonitorEnter are automatically exited. |
| 1228 | tlsPtr_.jni_env->monitors.VisitRoots(&visitor, RootInfo(kRootVMInternal)); |
| 1229 | } |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1230 | // Release locally held global references which releasing may require the mutator lock. |
| 1231 | if (tlsPtr_.jpeer != nullptr) { |
| 1232 | // If pthread_create fails we don't have a jni env here. |
| 1233 | tlsPtr_.jni_env->DeleteGlobalRef(tlsPtr_.jpeer); |
| 1234 | tlsPtr_.jpeer = nullptr; |
| 1235 | } |
| 1236 | if (tlsPtr_.class_loader_override != nullptr) { |
| 1237 | tlsPtr_.jni_env->DeleteGlobalRef(tlsPtr_.class_loader_override); |
| 1238 | tlsPtr_.class_loader_override = nullptr; |
| 1239 | } |
| 1240 | } |
| 1241 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1242 | if (tlsPtr_.opeer != nullptr) { |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 1243 | ScopedObjectAccess soa(self); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 1244 | // We may need to call user-supplied managed code, do this before final clean-up. |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 1245 | HandleUncaughtExceptions(soa); |
| 1246 | RemoveFromThreadGroup(soa); |
Elliott Hughes | 534da07 | 2012-03-27 15:17:42 -0700 | [diff] [blame] | 1247 | |
Anwar Ghuloum | 3c50a4b | 2013-06-21 13:05:23 -0700 | [diff] [blame] | 1248 | // this.nativePeer = 0; |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1249 | if (Runtime::Current()->IsActiveTransaction()) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1250 | soa.DecodeField(WellKnownClasses::java_lang_Thread_nativePeer) |
| 1251 | ->SetLong<true>(tlsPtr_.opeer, 0); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1252 | } else { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1253 | soa.DecodeField(WellKnownClasses::java_lang_Thread_nativePeer) |
| 1254 | ->SetLong<false>(tlsPtr_.opeer, 0); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1255 | } |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 1256 | Dbg::PostThreadDeath(self); |
Elliott Hughes | 02b48d1 | 2011-09-07 17:15:51 -0700 | [diff] [blame] | 1257 | |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 1258 | // Thread.join() is implemented as an Object.wait() on the Thread.lock object. Signal anyone |
| 1259 | // who is waiting. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1260 | mirror::Object* lock = |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1261 | soa.DecodeField(WellKnownClasses::java_lang_Thread_lock)->GetObject(tlsPtr_.opeer); |
Elliott Hughes | 038a806 | 2011-09-18 14:12:41 -0700 | [diff] [blame] | 1262 | // (This conditional is only needed for tests, where Thread.lock won't have been set.) |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1263 | if (lock != nullptr) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1264 | StackHandleScope<1> hs(self); |
| 1265 | Handle<mirror::Object> h_obj(hs.NewHandle(lock)); |
Mathieu Chartier | db2633c | 2014-05-16 09:59:29 -0700 | [diff] [blame] | 1266 | ObjectLock<mirror::Object> locker(self, h_obj); |
Yevgeny Rouban | 63e8a68 | 2014-04-16 18:26:09 +0700 | [diff] [blame] | 1267 | locker.NotifyAll(); |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 1268 | } |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1269 | tlsPtr_.opeer = nullptr; |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 1270 | } |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 1271 | |
Hiroshi Yamauchi | a1b94c6 | 2014-12-17 15:49:56 -0800 | [diff] [blame] | 1272 | { |
| 1273 | ScopedObjectAccess soa(self); |
| 1274 | Runtime::Current()->GetHeap()->RevokeThreadLocalBuffers(this); |
| 1275 | } |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 1276 | } |
Elliott Hughes | 02b48d1 | 2011-09-07 17:15:51 -0700 | [diff] [blame] | 1277 | |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 1278 | Thread::~Thread() { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1279 | CHECK(tlsPtr_.class_loader_override == nullptr); |
| 1280 | CHECK(tlsPtr_.jpeer == nullptr); |
| 1281 | CHECK(tlsPtr_.opeer == nullptr); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1282 | bool initialized = (tlsPtr_.jni_env != nullptr); // Did Thread::Init run? |
Alexei Zavjalov | 1efa0a9 | 2014-02-04 02:08:31 +0700 | [diff] [blame] | 1283 | if (initialized) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1284 | delete tlsPtr_.jni_env; |
| 1285 | tlsPtr_.jni_env = nullptr; |
Alexei Zavjalov | 1efa0a9 | 2014-02-04 02:08:31 +0700 | [diff] [blame] | 1286 | } |
Mathieu Chartier | dbe6f46 | 2012-09-25 16:54:50 -0700 | [diff] [blame] | 1287 | CHECK_NE(GetState(), kRunnable); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1288 | CHECK_NE(ReadFlag(kCheckpointRequest), true); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1289 | CHECK(tlsPtr_.checkpoint_functions[0] == nullptr); |
| 1290 | CHECK(tlsPtr_.checkpoint_functions[1] == nullptr); |
| 1291 | CHECK(tlsPtr_.checkpoint_functions[2] == nullptr); |
Hiroshi Yamauchi | 2cd334a | 2015-01-09 14:03:35 -0800 | [diff] [blame] | 1292 | CHECK(tlsPtr_.flip_function == nullptr); |
| 1293 | CHECK_EQ(tls32_.suspended_at_suspend_check, false); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1294 | |
Mathieu Chartier | dbe6f46 | 2012-09-25 16:54:50 -0700 | [diff] [blame] | 1295 | // We may be deleting a still born thread. |
| 1296 | SetStateUnsafe(kTerminated); |
Elliott Hughes | 85d1545 | 2011-09-16 17:33:01 -0700 | [diff] [blame] | 1297 | |
| 1298 | delete wait_cond_; |
| 1299 | delete wait_mutex_; |
| 1300 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1301 | if (tlsPtr_.long_jump_context != nullptr) { |
| 1302 | delete tlsPtr_.long_jump_context; |
Ian Rogers | c928de9 | 2013-02-27 14:30:44 -0800 | [diff] [blame] | 1303 | } |
Elliott Hughes | 475fc23 | 2011-10-25 15:00:35 -0700 | [diff] [blame] | 1304 | |
Alexei Zavjalov | 1efa0a9 | 2014-02-04 02:08:31 +0700 | [diff] [blame] | 1305 | if (initialized) { |
| 1306 | CleanupCpu(); |
| 1307 | } |
| 1308 | |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 1309 | if (tlsPtr_.single_step_control != nullptr) { |
| 1310 | delete tlsPtr_.single_step_control; |
| 1311 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1312 | delete tlsPtr_.instrumentation_stack; |
| 1313 | delete tlsPtr_.name; |
| 1314 | delete tlsPtr_.stack_trace_sample; |
Dave Allison | 8ce6b90 | 2014-08-26 11:07:58 -0700 | [diff] [blame] | 1315 | free(tlsPtr_.nested_signal_state); |
Elliott Hughes | d8af159 | 2012-04-16 20:40:15 -0700 | [diff] [blame] | 1316 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1317 | Runtime::Current()->GetHeap()->AssertThreadLocalBuffersAreRevoked(this); |
Hiroshi Yamauchi | cf58d4a | 2013-09-26 14:21:22 -0700 | [diff] [blame] | 1318 | |
Elliott Hughes | d8af159 | 2012-04-16 20:40:15 -0700 | [diff] [blame] | 1319 | TearDownAlternateSignalStack(); |
Elliott Hughes | c1674ed | 2011-08-25 18:09:09 -0700 | [diff] [blame] | 1320 | } |
| 1321 | |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 1322 | void Thread::HandleUncaughtExceptions(ScopedObjectAccess& soa) { |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 1323 | if (!IsExceptionPending()) { |
| 1324 | return; |
| 1325 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1326 | ScopedLocalRef<jobject> peer(tlsPtr_.jni_env, soa.AddLocalReference<jobject>(tlsPtr_.opeer)); |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 1327 | ScopedThreadStateChange tsc(this, kNative); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 1328 | |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 1329 | // Get and clear the exception. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1330 | ScopedLocalRef<jthrowable> exception(tlsPtr_.jni_env, tlsPtr_.jni_env->ExceptionOccurred()); |
| 1331 | tlsPtr_.jni_env->ExceptionClear(); |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 1332 | |
| 1333 | // If the thread has its own handler, use that. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1334 | ScopedLocalRef<jobject> handler(tlsPtr_.jni_env, |
| 1335 | tlsPtr_.jni_env->GetObjectField(peer.get(), |
| 1336 | WellKnownClasses::java_lang_Thread_uncaughtHandler)); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1337 | if (handler.get() == nullptr) { |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 1338 | // Otherwise use the thread group's default handler. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1339 | handler.reset(tlsPtr_.jni_env->GetObjectField(peer.get(), |
| 1340 | WellKnownClasses::java_lang_Thread_group)); |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 1341 | } |
| 1342 | |
| 1343 | // Call the handler. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1344 | tlsPtr_.jni_env->CallVoidMethod(handler.get(), |
Andreas Gampe | c8ccf68 | 2014-09-29 20:07:43 -0700 | [diff] [blame] | 1345 | WellKnownClasses::java_lang_Thread__UncaughtExceptionHandler_uncaughtException, |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1346 | peer.get(), exception.get()); |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 1347 | |
| 1348 | // If the handler threw, clear that exception too. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1349 | tlsPtr_.jni_env->ExceptionClear(); |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 1350 | } |
| 1351 | |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 1352 | void Thread::RemoveFromThreadGroup(ScopedObjectAccess& soa) { |
Brian Carlstrom | 4514d3c | 2011-10-21 17:01:31 -0700 | [diff] [blame] | 1353 | // this.group.removeThread(this); |
| 1354 | // group can be null if we're in the compiler or a test. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1355 | mirror::Object* ogroup = soa.DecodeField(WellKnownClasses::java_lang_Thread_group) |
| 1356 | ->GetObject(tlsPtr_.opeer); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1357 | if (ogroup != nullptr) { |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 1358 | ScopedLocalRef<jobject> group(soa.Env(), soa.AddLocalReference<jobject>(ogroup)); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1359 | ScopedLocalRef<jobject> peer(soa.Env(), soa.AddLocalReference<jobject>(tlsPtr_.opeer)); |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 1360 | ScopedThreadStateChange tsc(soa.Self(), kNative); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1361 | tlsPtr_.jni_env->CallVoidMethod(group.get(), |
| 1362 | WellKnownClasses::java_lang_ThreadGroup_removeThread, |
| 1363 | peer.get()); |
Brian Carlstrom | 4514d3c | 2011-10-21 17:01:31 -0700 | [diff] [blame] | 1364 | } |
| 1365 | } |
| 1366 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1367 | size_t Thread::NumHandleReferences() { |
Ian Rogers | a8cd9f4 | 2011-08-19 16:43:41 -0700 | [diff] [blame] | 1368 | size_t count = 0; |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1369 | for (HandleScope* cur = tlsPtr_.top_handle_scope; cur != nullptr; cur = cur->GetLink()) { |
Ian Rogers | a8cd9f4 | 2011-08-19 16:43:41 -0700 | [diff] [blame] | 1370 | count += cur->NumberOfReferences(); |
| 1371 | } |
| 1372 | return count; |
| 1373 | } |
| 1374 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1375 | bool Thread::HandleScopeContains(jobject obj) const { |
| 1376 | StackReference<mirror::Object>* hs_entry = |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1377 | reinterpret_cast<StackReference<mirror::Object>*>(obj); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1378 | for (HandleScope* cur = tlsPtr_.top_handle_scope; cur!= nullptr; cur = cur->GetLink()) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1379 | if (cur->Contains(hs_entry)) { |
Ian Rogers | a8cd9f4 | 2011-08-19 16:43:41 -0700 | [diff] [blame] | 1380 | return true; |
| 1381 | } |
| 1382 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1383 | // JNI code invoked from portable code uses shadow frames rather than the handle scope. |
| 1384 | return tlsPtr_.managed_stack.ShadowFramesContain(hs_entry); |
TDYa127 | 28f1a14 | 2012-03-15 21:51:52 -0700 | [diff] [blame] | 1385 | } |
| 1386 | |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 1387 | void Thread::HandleScopeVisitRoots(RootVisitor* visitor, uint32_t thread_id) { |
Mathieu Chartier | 4809d0a | 2015-04-07 10:39:04 -0700 | [diff] [blame] | 1388 | BufferedRootVisitor<kDefaultBufferedRootCount> buffered_visitor( |
| 1389 | visitor, RootInfo(kRootNativeStack, thread_id)); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1390 | for (HandleScope* cur = tlsPtr_.top_handle_scope; cur; cur = cur->GetLink()) { |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 1391 | for (size_t j = 0, count = cur->NumberOfReferences(); j < count; ++j) { |
| 1392 | buffered_visitor.VisitRootIfNonNull(cur->GetHandle(j).GetReference()); |
Shih-wei Liao | 8dfc9d5 | 2011-09-28 18:06:15 -0700 | [diff] [blame] | 1393 | } |
| 1394 | } |
| 1395 | } |
| 1396 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1397 | mirror::Object* Thread::DecodeJObject(jobject obj) const { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1398 | if (obj == nullptr) { |
| 1399 | return nullptr; |
Ian Rogers | 408f79a | 2011-08-23 18:22:33 -0700 | [diff] [blame] | 1400 | } |
| 1401 | IndirectRef ref = reinterpret_cast<IndirectRef>(obj); |
| 1402 | IndirectRefKind kind = GetIndirectRefKind(ref); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1403 | mirror::Object* result; |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1404 | bool expect_null = false; |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 1405 | // The "kinds" below are sorted by the frequency we expect to encounter them. |
| 1406 | if (kind == kLocal) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1407 | IndirectReferenceTable& locals = tlsPtr_.jni_env->locals; |
Hiroshi Yamauchi | 196851b | 2014-05-29 12:16:04 -0700 | [diff] [blame] | 1408 | // Local references do not need a read barrier. |
| 1409 | result = locals.Get<kWithoutReadBarrier>(ref); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1410 | } else if (kind == kHandleScopeOrInvalid) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1411 | // TODO: make stack indirect reference table lookup more efficient. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1412 | // Check if this is a local reference in the handle scope. |
| 1413 | if (LIKELY(HandleScopeContains(obj))) { |
| 1414 | // Read from handle scope. |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1415 | result = reinterpret_cast<StackReference<mirror::Object>*>(obj)->AsMirrorPtr(); |
Mathieu Chartier | c645f1d | 2014-03-06 18:11:53 -0800 | [diff] [blame] | 1416 | VerifyObject(result); |
Ian Rogers | 408f79a | 2011-08-23 18:22:33 -0700 | [diff] [blame] | 1417 | } else { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1418 | tlsPtr_.jni_env->vm->JniAbortF(nullptr, "use of invalid jobject %p", obj); |
| 1419 | expect_null = true; |
| 1420 | result = nullptr; |
Ian Rogers | 408f79a | 2011-08-23 18:22:33 -0700 | [diff] [blame] | 1421 | } |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 1422 | } else if (kind == kGlobal) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1423 | result = tlsPtr_.jni_env->vm->DecodeGlobal(const_cast<Thread*>(this), ref); |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 1424 | } else { |
| 1425 | DCHECK_EQ(kind, kWeakGlobal); |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1426 | result = tlsPtr_.jni_env->vm->DecodeWeakGlobal(const_cast<Thread*>(this), ref); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1427 | if (Runtime::Current()->IsClearedJniWeakGlobal(result)) { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1428 | // This is a special case where it's okay to return nullptr. |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1429 | expect_null = true; |
| 1430 | result = nullptr; |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 1431 | } |
Ian Rogers | 408f79a | 2011-08-23 18:22:33 -0700 | [diff] [blame] | 1432 | } |
| 1433 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1434 | if (UNLIKELY(!expect_null && result == nullptr)) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1435 | tlsPtr_.jni_env->vm->JniAbortF(nullptr, "use of deleted %s %p", |
| 1436 | ToStr<IndirectRefKind>(kind).c_str(), obj); |
Ian Rogers | 408f79a | 2011-08-23 18:22:33 -0700 | [diff] [blame] | 1437 | } |
Ian Rogers | 408f79a | 2011-08-23 18:22:33 -0700 | [diff] [blame] | 1438 | return result; |
| 1439 | } |
| 1440 | |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 1441 | // Implements java.lang.Thread.interrupted. |
| 1442 | bool Thread::Interrupted() { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1443 | MutexLock mu(Thread::Current(), *wait_mutex_); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1444 | bool interrupted = IsInterruptedLocked(); |
| 1445 | SetInterruptedLocked(false); |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 1446 | return interrupted; |
| 1447 | } |
| 1448 | |
| 1449 | // Implements java.lang.Thread.isInterrupted. |
| 1450 | bool Thread::IsInterrupted() { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1451 | MutexLock mu(Thread::Current(), *wait_mutex_); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1452 | return IsInterruptedLocked(); |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 1453 | } |
| 1454 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1455 | void Thread::Interrupt(Thread* self) { |
Ian Rogers | c604d73 | 2012-10-14 16:09:54 -0700 | [diff] [blame] | 1456 | MutexLock mu(self, *wait_mutex_); |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 1457 | if (interrupted_) { |
| 1458 | return; |
| 1459 | } |
| 1460 | interrupted_ = true; |
Ian Rogers | c604d73 | 2012-10-14 16:09:54 -0700 | [diff] [blame] | 1461 | NotifyLocked(self); |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 1462 | } |
| 1463 | |
| 1464 | void Thread::Notify() { |
Ian Rogers | c604d73 | 2012-10-14 16:09:54 -0700 | [diff] [blame] | 1465 | Thread* self = Thread::Current(); |
| 1466 | MutexLock mu(self, *wait_mutex_); |
| 1467 | NotifyLocked(self); |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 1468 | } |
| 1469 | |
Ian Rogers | c604d73 | 2012-10-14 16:09:54 -0700 | [diff] [blame] | 1470 | void Thread::NotifyLocked(Thread* self) { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1471 | if (wait_monitor_ != nullptr) { |
Ian Rogers | c604d73 | 2012-10-14 16:09:54 -0700 | [diff] [blame] | 1472 | wait_cond_->Signal(self); |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 1473 | } |
| 1474 | } |
| 1475 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1476 | void Thread::SetClassLoaderOverride(jobject class_loader_override) { |
| 1477 | if (tlsPtr_.class_loader_override != nullptr) { |
| 1478 | GetJniEnv()->DeleteGlobalRef(tlsPtr_.class_loader_override); |
| 1479 | } |
| 1480 | tlsPtr_.class_loader_override = GetJniEnv()->NewGlobalRef(class_loader_override); |
| 1481 | } |
| 1482 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1483 | class CountStackDepthVisitor : public StackVisitor { |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 1484 | public: |
Brian Carlstrom | 93ba893 | 2013-07-17 21:31:49 -0700 | [diff] [blame] | 1485 | explicit CountStackDepthVisitor(Thread* thread) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1486 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1487 | : StackVisitor(thread, nullptr), |
Elliott Hughes | 08fc03a | 2012-06-26 17:34:00 -0700 | [diff] [blame] | 1488 | depth_(0), skip_depth_(0), skipping_(true) {} |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 1489 | |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1490 | bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Elliott Hughes | 29f2742 | 2011-09-18 16:02:18 -0700 | [diff] [blame] | 1491 | // We want to skip frames up to and including the exception's constructor. |
Ian Rogers | 9086572 | 2011-09-19 11:11:44 -0700 | [diff] [blame] | 1492 | // Note we also skip the frame if it doesn't have a method (namely the callee |
| 1493 | // save frame) |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1494 | mirror::ArtMethod* m = GetMethod(); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1495 | if (skipping_ && !m->IsRuntimeMethod() && |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1496 | !mirror::Throwable::GetJavaLangThrowable()->IsAssignableFrom(m->GetDeclaringClass())) { |
Elliott Hughes | 29f2742 | 2011-09-18 16:02:18 -0700 | [diff] [blame] | 1497 | skipping_ = false; |
| 1498 | } |
| 1499 | if (!skipping_) { |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1500 | if (!m->IsRuntimeMethod()) { // Ignore runtime frames (in particular callee save). |
Ian Rogers | 6b0870d | 2011-12-15 19:38:12 -0800 | [diff] [blame] | 1501 | ++depth_; |
| 1502 | } |
Elliott Hughes | 29f2742 | 2011-09-18 16:02:18 -0700 | [diff] [blame] | 1503 | } else { |
| 1504 | ++skip_depth_; |
| 1505 | } |
Elliott Hughes | 530fa00 | 2012-03-12 11:44:49 -0700 | [diff] [blame] | 1506 | return true; |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 1507 | } |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 1508 | |
| 1509 | int GetDepth() const { |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 1510 | return depth_; |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 1511 | } |
| 1512 | |
Elliott Hughes | 29f2742 | 2011-09-18 16:02:18 -0700 | [diff] [blame] | 1513 | int GetSkipDepth() const { |
| 1514 | return skip_depth_; |
| 1515 | } |
| 1516 | |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 1517 | private: |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 1518 | uint32_t depth_; |
Elliott Hughes | 29f2742 | 2011-09-18 16:02:18 -0700 | [diff] [blame] | 1519 | uint32_t skip_depth_; |
| 1520 | bool skipping_; |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 1521 | }; |
| 1522 | |
Sebastien Hertz | ee1d79a | 2014-02-21 15:46:30 +0100 | [diff] [blame] | 1523 | template<bool kTransactionActive> |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1524 | class BuildInternalStackTraceVisitor : public StackVisitor { |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 1525 | public: |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 1526 | explicit BuildInternalStackTraceVisitor(Thread* self, Thread* thread, int skip_depth) |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1527 | : StackVisitor(thread, nullptr), self_(self), |
| 1528 | skip_depth_(skip_depth), count_(0), dex_pc_trace_(nullptr), method_trace_(nullptr) {} |
Ian Rogers | 283ed0d | 2012-02-16 15:25:09 -0800 | [diff] [blame] | 1529 | |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1530 | bool Init(int depth) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1531 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 1532 | // Allocate method trace with an extra slot that will hold the PC trace |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1533 | StackHandleScope<1> hs(self_); |
| 1534 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 1535 | Handle<mirror::ObjectArray<mirror::Object>> method_trace( |
| 1536 | hs.NewHandle(class_linker->AllocObjectArray<mirror::Object>(self_, depth + 1))); |
| 1537 | if (method_trace.Get() == nullptr) { |
Ian Rogers | 283ed0d | 2012-02-16 15:25:09 -0800 | [diff] [blame] | 1538 | return false; |
Elliott Hughes | 726079d | 2011-10-07 18:43:44 -0700 | [diff] [blame] | 1539 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1540 | mirror::IntArray* dex_pc_trace = mirror::IntArray::Alloc(self_, depth); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1541 | if (dex_pc_trace == nullptr) { |
Ian Rogers | 283ed0d | 2012-02-16 15:25:09 -0800 | [diff] [blame] | 1542 | return false; |
Elliott Hughes | 726079d | 2011-10-07 18:43:44 -0700 | [diff] [blame] | 1543 | } |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 1544 | // Save PC trace in last element of method trace, also places it into the |
| 1545 | // object graph. |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1546 | // We are called from native: use non-transactional mode. |
Sebastien Hertz | ee1d79a | 2014-02-21 15:46:30 +0100 | [diff] [blame] | 1547 | method_trace->Set<kTransactionActive>(depth, dex_pc_trace); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1548 | // Set the Object*s and assert that no thread suspension is now possible. |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 1549 | const char* last_no_suspend_cause = |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1550 | self_->StartAssertNoThreadSuspension("Building internal stack trace"); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1551 | CHECK(last_no_suspend_cause == nullptr) << last_no_suspend_cause; |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1552 | method_trace_ = method_trace.Get(); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1553 | dex_pc_trace_ = dex_pc_trace; |
Ian Rogers | 283ed0d | 2012-02-16 15:25:09 -0800 | [diff] [blame] | 1554 | return true; |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 1555 | } |
| 1556 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1557 | virtual ~BuildInternalStackTraceVisitor() { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1558 | if (method_trace_ != nullptr) { |
| 1559 | self_->EndAssertNoThreadSuspension(nullptr); |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 1560 | } |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1561 | } |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 1562 | |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1563 | bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1564 | if (method_trace_ == nullptr || dex_pc_trace_ == nullptr) { |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 1565 | return true; // We're probably trying to fillInStackTrace for an OutOfMemoryError. |
Elliott Hughes | 726079d | 2011-10-07 18:43:44 -0700 | [diff] [blame] | 1566 | } |
Elliott Hughes | 29f2742 | 2011-09-18 16:02:18 -0700 | [diff] [blame] | 1567 | if (skip_depth_ > 0) { |
| 1568 | skip_depth_--; |
Elliott Hughes | 530fa00 | 2012-03-12 11:44:49 -0700 | [diff] [blame] | 1569 | return true; |
Elliott Hughes | 29f2742 | 2011-09-18 16:02:18 -0700 | [diff] [blame] | 1570 | } |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1571 | mirror::ArtMethod* m = GetMethod(); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1572 | if (m->IsRuntimeMethod()) { |
| 1573 | return true; // Ignore runtime frames (in particular callee save). |
Ian Rogers | 6b0870d | 2011-12-15 19:38:12 -0800 | [diff] [blame] | 1574 | } |
Sebastien Hertz | ee1d79a | 2014-02-21 15:46:30 +0100 | [diff] [blame] | 1575 | method_trace_->Set<kTransactionActive>(count_, m); |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 1576 | dex_pc_trace_->Set<kTransactionActive>(count_, |
| 1577 | m->IsProxyMethod() ? DexFile::kDexNoIndex : GetDexPc()); |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 1578 | ++count_; |
Elliott Hughes | 530fa00 | 2012-03-12 11:44:49 -0700 | [diff] [blame] | 1579 | return true; |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 1580 | } |
| 1581 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1582 | mirror::ObjectArray<mirror::Object>* GetInternalStackTrace() const { |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1583 | return method_trace_; |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 1584 | } |
| 1585 | |
| 1586 | private: |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1587 | Thread* const self_; |
Elliott Hughes | 29f2742 | 2011-09-18 16:02:18 -0700 | [diff] [blame] | 1588 | // How many more frames to skip. |
| 1589 | int32_t skip_depth_; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1590 | // Current position down stack trace. |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 1591 | uint32_t count_; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1592 | // Array of dex PC values. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1593 | mirror::IntArray* dex_pc_trace_; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1594 | // An array of the methods on the stack, the last entry is a reference to the PC trace. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1595 | mirror::ObjectArray<mirror::Object>* method_trace_; |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 1596 | }; |
| 1597 | |
Sebastien Hertz | ee1d79a | 2014-02-21 15:46:30 +0100 | [diff] [blame] | 1598 | template<bool kTransactionActive> |
Mathieu Chartier | 2b7c4d1 | 2014-05-19 10:52:16 -0700 | [diff] [blame] | 1599 | jobject Thread::CreateInternalStackTrace(const ScopedObjectAccessAlreadyRunnable& soa) const { |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 1600 | // Compute depth of stack |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 1601 | CountStackDepthVisitor count_visitor(const_cast<Thread*>(this)); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1602 | count_visitor.WalkStack(); |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 1603 | int32_t depth = count_visitor.GetDepth(); |
Elliott Hughes | 29f2742 | 2011-09-18 16:02:18 -0700 | [diff] [blame] | 1604 | int32_t skip_depth = count_visitor.GetSkipDepth(); |
Shih-wei Liao | 4417536 | 2011-08-28 16:59:17 -0700 | [diff] [blame] | 1605 | |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1606 | // Build internal stack trace. |
Sebastien Hertz | ee1d79a | 2014-02-21 15:46:30 +0100 | [diff] [blame] | 1607 | BuildInternalStackTraceVisitor<kTransactionActive> build_trace_visitor(soa.Self(), |
| 1608 | const_cast<Thread*>(this), |
| 1609 | skip_depth); |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1610 | if (!build_trace_visitor.Init(depth)) { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1611 | return nullptr; // Allocation failed. |
Ian Rogers | 283ed0d | 2012-02-16 15:25:09 -0800 | [diff] [blame] | 1612 | } |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1613 | build_trace_visitor.WalkStack(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1614 | mirror::ObjectArray<mirror::Object>* trace = build_trace_visitor.GetInternalStackTrace(); |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 1615 | if (kIsDebugBuild) { |
| 1616 | for (int32_t i = 0; i < trace->GetLength(); ++i) { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1617 | CHECK(trace->Get(i) != nullptr); |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 1618 | } |
| 1619 | } |
| 1620 | return soa.AddLocalReference<jobjectArray>(trace); |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 1621 | } |
Mathieu Chartier | 2b7c4d1 | 2014-05-19 10:52:16 -0700 | [diff] [blame] | 1622 | template jobject Thread::CreateInternalStackTrace<false>( |
| 1623 | const ScopedObjectAccessAlreadyRunnable& soa) const; |
| 1624 | template jobject Thread::CreateInternalStackTrace<true>( |
| 1625 | const ScopedObjectAccessAlreadyRunnable& soa) const; |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 1626 | |
Nicolas Geoffray | 7642cfc | 2015-02-26 10:56:09 +0000 | [diff] [blame] | 1627 | bool Thread::IsExceptionThrownByCurrentMethod(mirror::Throwable* exception) const { |
| 1628 | CountStackDepthVisitor count_visitor(const_cast<Thread*>(this)); |
| 1629 | count_visitor.WalkStack(); |
| 1630 | return count_visitor.GetDepth() == exception->GetStackDepth(); |
| 1631 | } |
| 1632 | |
Mathieu Chartier | 2b7c4d1 | 2014-05-19 10:52:16 -0700 | [diff] [blame] | 1633 | jobjectArray Thread::InternalStackTraceToStackTraceElementArray( |
| 1634 | const ScopedObjectAccessAlreadyRunnable& soa, jobject internal, jobjectArray output_array, |
| 1635 | int* stack_depth) { |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 1636 | // Decode the internal stack trace into the depth, method trace and PC trace |
Mathieu Chartier | 530825b | 2013-09-25 17:56:49 -0700 | [diff] [blame] | 1637 | int32_t depth = soa.Decode<mirror::ObjectArray<mirror::Object>*>(internal)->GetLength() - 1; |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 1638 | |
| 1639 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 1640 | |
Elliott Hughes | 01158d7 | 2011-09-19 19:47:10 -0700 | [diff] [blame] | 1641 | jobjectArray result; |
Mathieu Chartier | 530825b | 2013-09-25 17:56:49 -0700 | [diff] [blame] | 1642 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1643 | if (output_array != nullptr) { |
Elliott Hughes | 01158d7 | 2011-09-19 19:47:10 -0700 | [diff] [blame] | 1644 | // Reuse the array we were given. |
| 1645 | result = output_array; |
Elliott Hughes | 01158d7 | 2011-09-19 19:47:10 -0700 | [diff] [blame] | 1646 | // ...adjusting the number of frames we'll write to not exceed the array length. |
Mathieu Chartier | 530825b | 2013-09-25 17:56:49 -0700 | [diff] [blame] | 1647 | const int32_t traces_length = |
| 1648 | soa.Decode<mirror::ObjectArray<mirror::StackTraceElement>*>(result)->GetLength(); |
| 1649 | depth = std::min(depth, traces_length); |
Elliott Hughes | 01158d7 | 2011-09-19 19:47:10 -0700 | [diff] [blame] | 1650 | } else { |
| 1651 | // Create java_trace array and place in local reference table |
Mathieu Chartier | 530825b | 2013-09-25 17:56:49 -0700 | [diff] [blame] | 1652 | mirror::ObjectArray<mirror::StackTraceElement>* java_traces = |
| 1653 | class_linker->AllocStackTraceElementArray(soa.Self(), depth); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1654 | if (java_traces == nullptr) { |
| 1655 | return nullptr; |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 1656 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1657 | result = soa.AddLocalReference<jobjectArray>(java_traces); |
Elliott Hughes | 01158d7 | 2011-09-19 19:47:10 -0700 | [diff] [blame] | 1658 | } |
| 1659 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1660 | if (stack_depth != nullptr) { |
Elliott Hughes | 01158d7 | 2011-09-19 19:47:10 -0700 | [diff] [blame] | 1661 | *stack_depth = depth; |
| 1662 | } |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 1663 | |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 1664 | for (int32_t i = 0; i < depth; ++i) { |
Mathieu Chartier | 530825b | 2013-09-25 17:56:49 -0700 | [diff] [blame] | 1665 | mirror::ObjectArray<mirror::Object>* method_trace = |
| 1666 | soa.Decode<mirror::ObjectArray<mirror::Object>*>(internal); |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 1667 | // Prepare parameters for StackTraceElement(String cls, String method, String file, int line) |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1668 | mirror::ArtMethod* method = down_cast<mirror::ArtMethod*>(method_trace->Get(i)); |
Jeff Hao | 228d6b8 | 2013-12-03 15:00:05 -0800 | [diff] [blame] | 1669 | int32_t line_number; |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1670 | StackHandleScope<3> hs(soa.Self()); |
| 1671 | auto class_name_object(hs.NewHandle<mirror::String>(nullptr)); |
| 1672 | auto source_name_object(hs.NewHandle<mirror::String>(nullptr)); |
Jeff Hao | 228d6b8 | 2013-12-03 15:00:05 -0800 | [diff] [blame] | 1673 | if (method->IsProxyMethod()) { |
| 1674 | line_number = -1; |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1675 | class_name_object.Assign(method->GetDeclaringClass()->GetName()); |
Jeff Hao | 228d6b8 | 2013-12-03 15:00:05 -0800 | [diff] [blame] | 1676 | // source_name_object intentionally left null for proxy methods |
| 1677 | } else { |
| 1678 | mirror::IntArray* pc_trace = down_cast<mirror::IntArray*>(method_trace->Get(depth)); |
| 1679 | uint32_t dex_pc = pc_trace->Get(i); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1680 | line_number = method->GetLineNumFromDexPC(dex_pc); |
Jeff Hao | 228d6b8 | 2013-12-03 15:00:05 -0800 | [diff] [blame] | 1681 | // Allocate element, potentially triggering GC |
| 1682 | // TODO: reuse class_name_object via Class::name_? |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1683 | const char* descriptor = method->GetDeclaringClassDescriptor(); |
Brian Carlstrom | 7c6aca2 | 2014-01-31 18:44:56 -0800 | [diff] [blame] | 1684 | CHECK(descriptor != nullptr); |
Jeff Hao | 228d6b8 | 2013-12-03 15:00:05 -0800 | [diff] [blame] | 1685 | std::string class_name(PrettyDescriptor(descriptor)); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1686 | class_name_object.Assign(mirror::String::AllocFromModifiedUtf8(soa.Self(), class_name.c_str())); |
| 1687 | if (class_name_object.Get() == nullptr) { |
Brian Carlstrom | 7c6aca2 | 2014-01-31 18:44:56 -0800 | [diff] [blame] | 1688 | return nullptr; |
Jeff Hao | 228d6b8 | 2013-12-03 15:00:05 -0800 | [diff] [blame] | 1689 | } |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1690 | const char* source_file = method->GetDeclaringClassSourceFile(); |
Brian Carlstrom | 7c6aca2 | 2014-01-31 18:44:56 -0800 | [diff] [blame] | 1691 | if (source_file != nullptr) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1692 | source_name_object.Assign(mirror::String::AllocFromModifiedUtf8(soa.Self(), source_file)); |
| 1693 | if (source_name_object.Get() == nullptr) { |
Brian Carlstrom | 7c6aca2 | 2014-01-31 18:44:56 -0800 | [diff] [blame] | 1694 | return nullptr; |
| 1695 | } |
Jeff Hao | 228d6b8 | 2013-12-03 15:00:05 -0800 | [diff] [blame] | 1696 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1697 | } |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1698 | const char* method_name = method->GetName(); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1699 | CHECK(method_name != nullptr); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1700 | Handle<mirror::String> method_name_object( |
| 1701 | hs.NewHandle(mirror::String::AllocFromModifiedUtf8(soa.Self(), method_name))); |
| 1702 | if (method_name_object.Get() == nullptr) { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1703 | return nullptr; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1704 | } |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1705 | mirror::StackTraceElement* obj = mirror::StackTraceElement::Alloc( |
| 1706 | soa.Self(), class_name_object, method_name_object, source_name_object, line_number); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1707 | if (obj == nullptr) { |
| 1708 | return nullptr; |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 1709 | } |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1710 | // We are called from native: use non-transactional mode. |
| 1711 | soa.Decode<mirror::ObjectArray<mirror::StackTraceElement>*>(result)->Set<false>(i, obj); |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 1712 | } |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 1713 | return result; |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 1714 | } |
| 1715 | |
Nicolas Geoffray | 0aa50ce | 2015-03-10 11:03:29 +0000 | [diff] [blame] | 1716 | void Thread::ThrowNewExceptionF(const char* exception_class_descriptor, const char* fmt, ...) { |
Elliott Hughes | a5b897e | 2011-08-16 11:33:06 -0700 | [diff] [blame] | 1717 | va_list args; |
| 1718 | va_start(args, fmt); |
Nicolas Geoffray | 0aa50ce | 2015-03-10 11:03:29 +0000 | [diff] [blame] | 1719 | ThrowNewExceptionV(exception_class_descriptor, fmt, args); |
Elliott Hughes | a5b897e | 2011-08-16 11:33:06 -0700 | [diff] [blame] | 1720 | va_end(args); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 1721 | } |
| 1722 | |
Nicolas Geoffray | 0aa50ce | 2015-03-10 11:03:29 +0000 | [diff] [blame] | 1723 | void Thread::ThrowNewExceptionV(const char* exception_class_descriptor, |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1724 | const char* fmt, va_list ap) { |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 1725 | std::string msg; |
| 1726 | StringAppendV(&msg, fmt, ap); |
Nicolas Geoffray | 0aa50ce | 2015-03-10 11:03:29 +0000 | [diff] [blame] | 1727 | ThrowNewException(exception_class_descriptor, msg.c_str()); |
Elliott Hughes | 5cb5ad2 | 2011-10-02 12:13:39 -0700 | [diff] [blame] | 1728 | } |
Elliott Hughes | 37f7a40 | 2011-08-22 18:56:01 -0700 | [diff] [blame] | 1729 | |
Nicolas Geoffray | 0aa50ce | 2015-03-10 11:03:29 +0000 | [diff] [blame] | 1730 | void Thread::ThrowNewException(const char* exception_class_descriptor, |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1731 | const char* msg) { |
Mathieu Chartier | 8d7672e | 2014-02-25 10:57:16 -0800 | [diff] [blame] | 1732 | // Callers should either clear or call ThrowNewWrappedException. |
| 1733 | AssertNoPendingExceptionForNewException(msg); |
Nicolas Geoffray | 0aa50ce | 2015-03-10 11:03:29 +0000 | [diff] [blame] | 1734 | ThrowNewWrappedException(exception_class_descriptor, msg); |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 1735 | } |
| 1736 | |
Nicolas Geoffray | ee07703 | 2015-03-09 14:56:37 +0000 | [diff] [blame] | 1737 | static mirror::ClassLoader* GetCurrentClassLoader(Thread* self) |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 1738 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Nicolas Geoffray | ee07703 | 2015-03-09 14:56:37 +0000 | [diff] [blame] | 1739 | mirror::ArtMethod* method = self->GetCurrentMethod(nullptr); |
| 1740 | return method != nullptr |
| 1741 | ? method->GetDeclaringClass()->GetClassLoader() |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 1742 | : nullptr; |
| 1743 | } |
| 1744 | |
Nicolas Geoffray | 0aa50ce | 2015-03-10 11:03:29 +0000 | [diff] [blame] | 1745 | void Thread::ThrowNewWrappedException(const char* exception_class_descriptor, |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1746 | const char* msg) { |
| 1747 | DCHECK_EQ(this, Thread::Current()); |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 1748 | ScopedObjectAccessUnchecked soa(this); |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 1749 | StackHandleScope<3> hs(soa.Self()); |
Nicolas Geoffray | ee07703 | 2015-03-09 14:56:37 +0000 | [diff] [blame] | 1750 | Handle<mirror::ClassLoader> class_loader(hs.NewHandle(GetCurrentClassLoader(soa.Self()))); |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 1751 | ScopedLocalRef<jobject> cause(GetJniEnv(), soa.AddLocalReference<jobject>(GetException())); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1752 | ClearException(); |
| 1753 | Runtime* runtime = Runtime::Current(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1754 | Handle<mirror::Class> exception_class( |
| 1755 | hs.NewHandle(runtime->GetClassLinker()->FindClass(this, exception_class_descriptor, |
| 1756 | class_loader))); |
| 1757 | if (UNLIKELY(exception_class.Get() == nullptr)) { |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 1758 | CHECK(IsExceptionPending()); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1759 | LOG(ERROR) << "No exception class " << PrettyDescriptor(exception_class_descriptor); |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 1760 | return; |
| 1761 | } |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1762 | |
Ian Rogers | 7b078e8 | 2014-09-10 14:44:24 -0700 | [diff] [blame] | 1763 | if (UNLIKELY(!runtime->GetClassLinker()->EnsureInitialized(soa.Self(), exception_class, true, |
| 1764 | true))) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1765 | DCHECK(IsExceptionPending()); |
| 1766 | return; |
| 1767 | } |
| 1768 | DCHECK(!runtime->IsStarted() || exception_class->IsThrowableClass()); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1769 | Handle<mirror::Throwable> exception( |
| 1770 | hs.NewHandle(down_cast<mirror::Throwable*>(exception_class->AllocObject(this)))); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1771 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1772 | // If we couldn't allocate the exception, throw the pre-allocated out of memory exception. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1773 | if (exception.Get() == nullptr) { |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 1774 | SetException(Runtime::Current()->GetPreAllocatedOutOfMemoryError()); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1775 | return; |
| 1776 | } |
| 1777 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1778 | // Choose an appropriate constructor and set up the arguments. |
| 1779 | const char* signature; |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 1780 | ScopedLocalRef<jstring> msg_string(GetJniEnv(), nullptr); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1781 | if (msg != nullptr) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1782 | // Ensure we remember this and the method over the String allocation. |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 1783 | msg_string.reset( |
| 1784 | soa.AddLocalReference<jstring>(mirror::String::AllocFromModifiedUtf8(this, msg))); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1785 | if (UNLIKELY(msg_string.get() == nullptr)) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1786 | CHECK(IsExceptionPending()); // OOME. |
| 1787 | return; |
Brian Carlstrom | ebd1fd2 | 2011-12-07 15:46:26 -0800 | [diff] [blame] | 1788 | } |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1789 | if (cause.get() == nullptr) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1790 | signature = "(Ljava/lang/String;)V"; |
| 1791 | } else { |
| 1792 | signature = "(Ljava/lang/String;Ljava/lang/Throwable;)V"; |
| 1793 | } |
| 1794 | } else { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1795 | if (cause.get() == nullptr) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1796 | signature = "()V"; |
| 1797 | } else { |
| 1798 | signature = "(Ljava/lang/Throwable;)V"; |
| 1799 | } |
Brian Carlstrom | ebd1fd2 | 2011-12-07 15:46:26 -0800 | [diff] [blame] | 1800 | } |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1801 | mirror::ArtMethod* exception_init_method = |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1802 | exception_class->FindDeclaredDirectMethod("<init>", signature); |
| 1803 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1804 | CHECK(exception_init_method != nullptr) << "No <init>" << signature << " in " |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1805 | << PrettyDescriptor(exception_class_descriptor); |
| 1806 | |
| 1807 | if (UNLIKELY(!runtime->IsStarted())) { |
| 1808 | // Something is trying to throw an exception without a started runtime, which is the common |
| 1809 | // case in the compiler. We won't be able to invoke the constructor of the exception, so set |
| 1810 | // the exception fields directly. |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1811 | if (msg != nullptr) { |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 1812 | exception->SetDetailMessage(down_cast<mirror::String*>(DecodeJObject(msg_string.get()))); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1813 | } |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1814 | if (cause.get() != nullptr) { |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 1815 | exception->SetCause(down_cast<mirror::Throwable*>(DecodeJObject(cause.get()))); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1816 | } |
Ian Rogers | c45b8b5 | 2014-05-03 01:39:59 -0700 | [diff] [blame] | 1817 | ScopedLocalRef<jobject> trace(GetJniEnv(), |
| 1818 | Runtime::Current()->IsActiveTransaction() |
| 1819 | ? CreateInternalStackTrace<true>(soa) |
| 1820 | : CreateInternalStackTrace<false>(soa)); |
| 1821 | if (trace.get() != nullptr) { |
| 1822 | exception->SetStackState(down_cast<mirror::Throwable*>(DecodeJObject(trace.get()))); |
| 1823 | } |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 1824 | SetException(exception.Get()); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1825 | } else { |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 1826 | jvalue jv_args[2]; |
| 1827 | size_t i = 0; |
| 1828 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1829 | if (msg != nullptr) { |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 1830 | jv_args[i].l = msg_string.get(); |
| 1831 | ++i; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1832 | } |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1833 | if (cause.get() != nullptr) { |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 1834 | jv_args[i].l = cause.get(); |
| 1835 | ++i; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1836 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1837 | InvokeWithJValues(soa, exception.Get(), soa.EncodeMethod(exception_init_method), jv_args); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1838 | if (LIKELY(!IsExceptionPending())) { |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 1839 | SetException(exception.Get()); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1840 | } |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 1841 | } |
Elliott Hughes | a5b897e | 2011-08-16 11:33:06 -0700 | [diff] [blame] | 1842 | } |
| 1843 | |
Elliott Hughes | 2ced6a5 | 2011-10-16 18:44:48 -0700 | [diff] [blame] | 1844 | void Thread::ThrowOutOfMemoryError(const char* msg) { |
Andreas Gampe | e4301ff | 2015-02-17 19:25:29 -0800 | [diff] [blame] | 1845 | LOG(WARNING) << StringPrintf("Throwing OutOfMemoryError \"%s\"%s", |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1846 | msg, (tls32_.throwing_OutOfMemoryError ? " (recursive case)" : "")); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1847 | if (!tls32_.throwing_OutOfMemoryError) { |
| 1848 | tls32_.throwing_OutOfMemoryError = true; |
Nicolas Geoffray | 0aa50ce | 2015-03-10 11:03:29 +0000 | [diff] [blame] | 1849 | ThrowNewException("Ljava/lang/OutOfMemoryError;", msg); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1850 | tls32_.throwing_OutOfMemoryError = false; |
Elliott Hughes | 418dfe7 | 2011-10-06 18:56:27 -0700 | [diff] [blame] | 1851 | } else { |
Andreas Gampe | e4301ff | 2015-02-17 19:25:29 -0800 | [diff] [blame] | 1852 | Dump(LOG(WARNING)); // The pre-allocated OOME has no stack, so help out and log one. |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 1853 | SetException(Runtime::Current()->GetPreAllocatedOutOfMemoryError()); |
Elliott Hughes | 418dfe7 | 2011-10-06 18:56:27 -0700 | [diff] [blame] | 1854 | } |
Elliott Hughes | 79082e3 | 2011-08-25 12:07:32 -0700 | [diff] [blame] | 1855 | } |
| 1856 | |
Elliott Hughes | 498508c | 2011-10-17 14:58:22 -0700 | [diff] [blame] | 1857 | Thread* Thread::CurrentFromGdb() { |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 1858 | return Thread::Current(); |
| 1859 | } |
| 1860 | |
| 1861 | void Thread::DumpFromGdb() const { |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1862 | std::ostringstream ss; |
| 1863 | Dump(ss); |
Elliott Hughes | 9557241 | 2011-12-13 18:14:20 -0800 | [diff] [blame] | 1864 | std::string str(ss.str()); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1865 | // log to stderr for debugging command line processes |
| 1866 | std::cerr << str; |
| 1867 | #ifdef HAVE_ANDROID_OS |
| 1868 | // log to logcat for debugging frameworks processes |
| 1869 | LOG(INFO) << str; |
| 1870 | #endif |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 1871 | } |
| 1872 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1873 | // Explicitly instantiate 32 and 64bit thread offset dumping support. |
| 1874 | template void Thread::DumpThreadOffset<4>(std::ostream& os, uint32_t offset); |
| 1875 | template void Thread::DumpThreadOffset<8>(std::ostream& os, uint32_t offset); |
Elliott Hughes | 98e2017 | 2012-04-24 15:38:13 -0700 | [diff] [blame] | 1876 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1877 | template<size_t ptr_size> |
| 1878 | void Thread::DumpThreadOffset(std::ostream& os, uint32_t offset) { |
| 1879 | #define DO_THREAD_OFFSET(x, y) \ |
| 1880 | if (offset == x.Uint32Value()) { \ |
| 1881 | os << y; \ |
Brian Carlstrom | f69863b | 2013-07-17 21:53:13 -0700 | [diff] [blame] | 1882 | return; \ |
| 1883 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1884 | DO_THREAD_OFFSET(ThreadFlagsOffset<ptr_size>(), "state_and_flags") |
| 1885 | DO_THREAD_OFFSET(CardTableOffset<ptr_size>(), "card_table") |
| 1886 | DO_THREAD_OFFSET(ExceptionOffset<ptr_size>(), "exception") |
| 1887 | DO_THREAD_OFFSET(PeerOffset<ptr_size>(), "peer"); |
| 1888 | DO_THREAD_OFFSET(JniEnvOffset<ptr_size>(), "jni_env") |
| 1889 | DO_THREAD_OFFSET(SelfOffset<ptr_size>(), "self") |
| 1890 | DO_THREAD_OFFSET(StackEndOffset<ptr_size>(), "stack_end") |
| 1891 | DO_THREAD_OFFSET(ThinLockIdOffset<ptr_size>(), "thin_lock_thread_id") |
| 1892 | DO_THREAD_OFFSET(TopOfManagedStackOffset<ptr_size>(), "top_quick_frame_method") |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1893 | DO_THREAD_OFFSET(TopShadowFrameOffset<ptr_size>(), "top_shadow_frame") |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 1894 | DO_THREAD_OFFSET(TopHandleScopeOffset<ptr_size>(), "top_handle_scope") |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1895 | DO_THREAD_OFFSET(ThreadSuspendTriggerOffset<ptr_size>(), "suspend_trigger") |
Elliott Hughes | 28fa76d | 2012-04-09 17:31:46 -0700 | [diff] [blame] | 1896 | #undef DO_THREAD_OFFSET |
Elliott Hughes | 98e2017 | 2012-04-24 15:38:13 -0700 | [diff] [blame] | 1897 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1898 | #define INTERPRETER_ENTRY_POINT_INFO(x) \ |
| 1899 | if (INTERPRETER_ENTRYPOINT_OFFSET(ptr_size, x).Uint32Value() == offset) { \ |
| 1900 | os << #x; \ |
| 1901 | return; \ |
Elliott Hughes | 98e2017 | 2012-04-24 15:38:13 -0700 | [diff] [blame] | 1902 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1903 | INTERPRETER_ENTRY_POINT_INFO(pInterpreterToInterpreterBridge) |
| 1904 | INTERPRETER_ENTRY_POINT_INFO(pInterpreterToCompiledCodeBridge) |
| 1905 | #undef INTERPRETER_ENTRY_POINT_INFO |
| 1906 | |
| 1907 | #define JNI_ENTRY_POINT_INFO(x) \ |
| 1908 | if (JNI_ENTRYPOINT_OFFSET(ptr_size, x).Uint32Value() == offset) { \ |
| 1909 | os << #x; \ |
| 1910 | return; \ |
| 1911 | } |
| 1912 | JNI_ENTRY_POINT_INFO(pDlsymLookup) |
| 1913 | #undef JNI_ENTRY_POINT_INFO |
| 1914 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1915 | #define QUICK_ENTRY_POINT_INFO(x) \ |
| 1916 | if (QUICK_ENTRYPOINT_OFFSET(ptr_size, x).Uint32Value() == offset) { \ |
| 1917 | os << #x; \ |
| 1918 | return; \ |
| 1919 | } |
| 1920 | QUICK_ENTRY_POINT_INFO(pAllocArray) |
| 1921 | QUICK_ENTRY_POINT_INFO(pAllocArrayResolved) |
| 1922 | QUICK_ENTRY_POINT_INFO(pAllocArrayWithAccessCheck) |
| 1923 | QUICK_ENTRY_POINT_INFO(pAllocObject) |
| 1924 | QUICK_ENTRY_POINT_INFO(pAllocObjectResolved) |
| 1925 | QUICK_ENTRY_POINT_INFO(pAllocObjectInitialized) |
| 1926 | QUICK_ENTRY_POINT_INFO(pAllocObjectWithAccessCheck) |
| 1927 | QUICK_ENTRY_POINT_INFO(pCheckAndAllocArray) |
| 1928 | QUICK_ENTRY_POINT_INFO(pCheckAndAllocArrayWithAccessCheck) |
| 1929 | QUICK_ENTRY_POINT_INFO(pInstanceofNonTrivial) |
| 1930 | QUICK_ENTRY_POINT_INFO(pCheckCast) |
| 1931 | QUICK_ENTRY_POINT_INFO(pInitializeStaticStorage) |
| 1932 | QUICK_ENTRY_POINT_INFO(pInitializeTypeAndVerifyAccess) |
| 1933 | QUICK_ENTRY_POINT_INFO(pInitializeType) |
| 1934 | QUICK_ENTRY_POINT_INFO(pResolveString) |
Fred Shih | 37f05ef | 2014-07-16 18:38:08 -0700 | [diff] [blame] | 1935 | QUICK_ENTRY_POINT_INFO(pSet8Instance) |
| 1936 | QUICK_ENTRY_POINT_INFO(pSet8Static) |
| 1937 | QUICK_ENTRY_POINT_INFO(pSet16Instance) |
| 1938 | QUICK_ENTRY_POINT_INFO(pSet16Static) |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1939 | QUICK_ENTRY_POINT_INFO(pSet32Instance) |
| 1940 | QUICK_ENTRY_POINT_INFO(pSet32Static) |
| 1941 | QUICK_ENTRY_POINT_INFO(pSet64Instance) |
| 1942 | QUICK_ENTRY_POINT_INFO(pSet64Static) |
| 1943 | QUICK_ENTRY_POINT_INFO(pSetObjInstance) |
| 1944 | QUICK_ENTRY_POINT_INFO(pSetObjStatic) |
Fred Shih | 37f05ef | 2014-07-16 18:38:08 -0700 | [diff] [blame] | 1945 | QUICK_ENTRY_POINT_INFO(pGetByteInstance) |
| 1946 | QUICK_ENTRY_POINT_INFO(pGetBooleanInstance) |
| 1947 | QUICK_ENTRY_POINT_INFO(pGetByteStatic) |
| 1948 | QUICK_ENTRY_POINT_INFO(pGetBooleanStatic) |
| 1949 | QUICK_ENTRY_POINT_INFO(pGetShortInstance) |
| 1950 | QUICK_ENTRY_POINT_INFO(pGetCharInstance) |
| 1951 | QUICK_ENTRY_POINT_INFO(pGetShortStatic) |
| 1952 | QUICK_ENTRY_POINT_INFO(pGetCharStatic) |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1953 | QUICK_ENTRY_POINT_INFO(pGet32Instance) |
| 1954 | QUICK_ENTRY_POINT_INFO(pGet32Static) |
| 1955 | QUICK_ENTRY_POINT_INFO(pGet64Instance) |
| 1956 | QUICK_ENTRY_POINT_INFO(pGet64Static) |
| 1957 | QUICK_ENTRY_POINT_INFO(pGetObjInstance) |
| 1958 | QUICK_ENTRY_POINT_INFO(pGetObjStatic) |
| 1959 | QUICK_ENTRY_POINT_INFO(pAputObjectWithNullAndBoundCheck) |
| 1960 | QUICK_ENTRY_POINT_INFO(pAputObjectWithBoundCheck) |
| 1961 | QUICK_ENTRY_POINT_INFO(pAputObject) |
| 1962 | QUICK_ENTRY_POINT_INFO(pHandleFillArrayData) |
| 1963 | QUICK_ENTRY_POINT_INFO(pJniMethodStart) |
| 1964 | QUICK_ENTRY_POINT_INFO(pJniMethodStartSynchronized) |
| 1965 | QUICK_ENTRY_POINT_INFO(pJniMethodEnd) |
| 1966 | QUICK_ENTRY_POINT_INFO(pJniMethodEndSynchronized) |
| 1967 | QUICK_ENTRY_POINT_INFO(pJniMethodEndWithReference) |
| 1968 | QUICK_ENTRY_POINT_INFO(pJniMethodEndWithReferenceSynchronized) |
| 1969 | QUICK_ENTRY_POINT_INFO(pQuickGenericJniTrampoline) |
| 1970 | QUICK_ENTRY_POINT_INFO(pLockObject) |
| 1971 | QUICK_ENTRY_POINT_INFO(pUnlockObject) |
| 1972 | QUICK_ENTRY_POINT_INFO(pCmpgDouble) |
| 1973 | QUICK_ENTRY_POINT_INFO(pCmpgFloat) |
| 1974 | QUICK_ENTRY_POINT_INFO(pCmplDouble) |
| 1975 | QUICK_ENTRY_POINT_INFO(pCmplFloat) |
| 1976 | QUICK_ENTRY_POINT_INFO(pFmod) |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1977 | QUICK_ENTRY_POINT_INFO(pL2d) |
| 1978 | QUICK_ENTRY_POINT_INFO(pFmodf) |
| 1979 | QUICK_ENTRY_POINT_INFO(pL2f) |
| 1980 | QUICK_ENTRY_POINT_INFO(pD2iz) |
| 1981 | QUICK_ENTRY_POINT_INFO(pF2iz) |
| 1982 | QUICK_ENTRY_POINT_INFO(pIdivmod) |
| 1983 | QUICK_ENTRY_POINT_INFO(pD2l) |
| 1984 | QUICK_ENTRY_POINT_INFO(pF2l) |
| 1985 | QUICK_ENTRY_POINT_INFO(pLdiv) |
| 1986 | QUICK_ENTRY_POINT_INFO(pLmod) |
| 1987 | QUICK_ENTRY_POINT_INFO(pLmul) |
| 1988 | QUICK_ENTRY_POINT_INFO(pShlLong) |
| 1989 | QUICK_ENTRY_POINT_INFO(pShrLong) |
| 1990 | QUICK_ENTRY_POINT_INFO(pUshrLong) |
| 1991 | QUICK_ENTRY_POINT_INFO(pIndexOf) |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1992 | QUICK_ENTRY_POINT_INFO(pStringCompareTo) |
| 1993 | QUICK_ENTRY_POINT_INFO(pMemcpy) |
| 1994 | QUICK_ENTRY_POINT_INFO(pQuickImtConflictTrampoline) |
| 1995 | QUICK_ENTRY_POINT_INFO(pQuickResolutionTrampoline) |
| 1996 | QUICK_ENTRY_POINT_INFO(pQuickToInterpreterBridge) |
| 1997 | QUICK_ENTRY_POINT_INFO(pInvokeDirectTrampolineWithAccessCheck) |
| 1998 | QUICK_ENTRY_POINT_INFO(pInvokeInterfaceTrampolineWithAccessCheck) |
| 1999 | QUICK_ENTRY_POINT_INFO(pInvokeStaticTrampolineWithAccessCheck) |
| 2000 | QUICK_ENTRY_POINT_INFO(pInvokeSuperTrampolineWithAccessCheck) |
| 2001 | QUICK_ENTRY_POINT_INFO(pInvokeVirtualTrampolineWithAccessCheck) |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2002 | QUICK_ENTRY_POINT_INFO(pTestSuspend) |
| 2003 | QUICK_ENTRY_POINT_INFO(pDeliverException) |
| 2004 | QUICK_ENTRY_POINT_INFO(pThrowArrayBounds) |
| 2005 | QUICK_ENTRY_POINT_INFO(pThrowDivZero) |
| 2006 | QUICK_ENTRY_POINT_INFO(pThrowNoSuchMethod) |
| 2007 | QUICK_ENTRY_POINT_INFO(pThrowNullPointer) |
| 2008 | QUICK_ENTRY_POINT_INFO(pThrowStackOverflow) |
Mingyao Yang | d43b3ac | 2015-04-01 14:03:04 -0700 | [diff] [blame] | 2009 | QUICK_ENTRY_POINT_INFO(pDeoptimize) |
Douglas Leung | d9cb8ae | 2014-07-09 14:28:35 -0700 | [diff] [blame] | 2010 | QUICK_ENTRY_POINT_INFO(pA64Load) |
| 2011 | QUICK_ENTRY_POINT_INFO(pA64Store) |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2012 | #undef QUICK_ENTRY_POINT_INFO |
| 2013 | |
Elliott Hughes | 98e2017 | 2012-04-24 15:38:13 -0700 | [diff] [blame] | 2014 | os << offset; |
Elliott Hughes | 28fa76d | 2012-04-09 17:31:46 -0700 | [diff] [blame] | 2015 | } |
| 2016 | |
jeffhao | 94d6df4 | 2012-11-26 16:02:12 -0800 | [diff] [blame] | 2017 | void Thread::QuickDeliverException() { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2018 | // Get exception from thread. |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 2019 | mirror::Throwable* exception = GetException(); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2020 | CHECK(exception != nullptr); |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 2021 | // Don't leave exception visible while we try to find the handler, which may cause class |
Elliott Hughes | d07986f | 2011-12-06 18:27:45 -0800 | [diff] [blame] | 2022 | // resolution. |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 2023 | ClearException(); |
Sebastien Hertz | fd3077e | 2014-04-23 10:32:43 +0200 | [diff] [blame] | 2024 | bool is_deoptimization = (exception == GetDeoptimizationException()); |
Sebastien Hertz | fd3077e | 2014-04-23 10:32:43 +0200 | [diff] [blame] | 2025 | QuickExceptionHandler exception_handler(this, is_deoptimization); |
| 2026 | if (is_deoptimization) { |
| 2027 | exception_handler.DeoptimizeStack(); |
| 2028 | } else { |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 2029 | exception_handler.FindCatch(exception); |
Sebastien Hertz | fd3077e | 2014-04-23 10:32:43 +0200 | [diff] [blame] | 2030 | } |
| 2031 | exception_handler.UpdateInstrumentationStack(); |
| 2032 | exception_handler.DoLongJump(); |
Shih-wei Liao | 1a18c8c | 2011-08-14 17:47:36 -0700 | [diff] [blame] | 2033 | } |
| 2034 | |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 2035 | Context* Thread::GetLongJumpContext() { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2036 | Context* result = tlsPtr_.long_jump_context; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2037 | if (result == nullptr) { |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 2038 | result = Context::Create(); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2039 | } else { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2040 | tlsPtr_.long_jump_context = nullptr; // Avoid context being shared. |
Mathieu Chartier | 6702243 | 2012-11-29 18:04:50 -0800 | [diff] [blame] | 2041 | result->Reset(); |
Shih-wei Liao | 1a18c8c | 2011-08-14 17:47:36 -0700 | [diff] [blame] | 2042 | } |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 2043 | return result; |
Shih-wei Liao | 1a18c8c | 2011-08-14 17:47:36 -0700 | [diff] [blame] | 2044 | } |
| 2045 | |
Andreas Gampe | 4a8c3fa | 2014-07-16 22:20:31 -0700 | [diff] [blame] | 2046 | // Note: this visitor may return with a method set, but dex_pc_ being DexFile:kDexNoIndex. This is |
| 2047 | // so we don't abort in a special situation (thinlocked monitor) when dumping the Java stack. |
Ian Rogers | e0dcd46 | 2014-03-08 15:21:04 -0800 | [diff] [blame] | 2048 | struct CurrentMethodVisitor FINAL : public StackVisitor { |
Andreas Gampe | 6ec8ebd | 2014-07-25 13:36:56 -0700 | [diff] [blame] | 2049 | CurrentMethodVisitor(Thread* thread, Context* context, bool abort_on_error) |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2050 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
Andreas Gampe | f9df5c1 | 2014-07-25 03:07:06 -0700 | [diff] [blame] | 2051 | : StackVisitor(thread, context), this_object_(nullptr), method_(nullptr), dex_pc_(0), |
Andreas Gampe | 6ec8ebd | 2014-07-25 13:36:56 -0700 | [diff] [blame] | 2052 | abort_on_error_(abort_on_error) {} |
Ian Rogers | e0dcd46 | 2014-03-08 15:21:04 -0800 | [diff] [blame] | 2053 | bool VisitFrame() OVERRIDE SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2054 | mirror::ArtMethod* m = GetMethod(); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2055 | if (m->IsRuntimeMethod()) { |
| 2056 | // Continue if this is a runtime method. |
| 2057 | return true; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2058 | } |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2059 | if (context_ != nullptr) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2060 | this_object_ = GetThisObject(); |
| 2061 | } |
| 2062 | method_ = m; |
Andreas Gampe | 6ec8ebd | 2014-07-25 13:36:56 -0700 | [diff] [blame] | 2063 | dex_pc_ = GetDexPc(abort_on_error_); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2064 | return false; |
| 2065 | } |
| 2066 | mirror::Object* this_object_; |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 2067 | mirror::ArtMethod* method_; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2068 | uint32_t dex_pc_; |
Andreas Gampe | 6ec8ebd | 2014-07-25 13:36:56 -0700 | [diff] [blame] | 2069 | const bool abort_on_error_; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2070 | }; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2071 | |
Andreas Gampe | 6ec8ebd | 2014-07-25 13:36:56 -0700 | [diff] [blame] | 2072 | mirror::ArtMethod* Thread::GetCurrentMethod(uint32_t* dex_pc, bool abort_on_error) const { |
| 2073 | CurrentMethodVisitor visitor(const_cast<Thread*>(this), nullptr, abort_on_error); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2074 | visitor.WalkStack(false); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2075 | if (dex_pc != nullptr) { |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2076 | *dex_pc = visitor.dex_pc_; |
Elliott Hughes | 9fd66f5 | 2011-10-16 12:13:26 -0700 | [diff] [blame] | 2077 | } |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2078 | return visitor.method_; |
jeffhao | 33dc771 | 2011-11-09 17:54:24 -0800 | [diff] [blame] | 2079 | } |
| 2080 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2081 | bool Thread::HoldsLock(mirror::Object* object) const { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2082 | if (object == nullptr) { |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 2083 | return false; |
| 2084 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2085 | return object->GetLockOwnerThreadId() == GetThreadId(); |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 2086 | } |
| 2087 | |
Ian Rogers | 40e3bac | 2012-11-20 00:09:14 -0800 | [diff] [blame] | 2088 | // RootVisitor parameters are: (const Object* obj, size_t vreg, const StackVisitor* visitor). |
| 2089 | template <typename RootVisitor> |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2090 | class ReferenceMapVisitor : public StackVisitor { |
Ian Rogers | d6b1f61 | 2011-09-27 13:38:14 -0700 | [diff] [blame] | 2091 | public: |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 2092 | ReferenceMapVisitor(Thread* thread, Context* context, RootVisitor& visitor) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 2093 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 2094 | : StackVisitor(thread, context), visitor_(visitor) {} |
Ian Rogers | d6b1f61 | 2011-09-27 13:38:14 -0700 | [diff] [blame] | 2095 | |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 2096 | bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | 6a4be3a | 2011-10-20 16:34:03 -0700 | [diff] [blame] | 2097 | if (false) { |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2098 | LOG(INFO) << "Visiting stack roots in " << PrettyMethod(GetMethod()) |
Sebastien Hertz | 714f175 | 2014-04-28 15:03:08 +0200 | [diff] [blame] | 2099 | << StringPrintf("@ PC:%04x", GetDexPc()); |
Brian Carlstrom | 6a4be3a | 2011-10-20 16:34:03 -0700 | [diff] [blame] | 2100 | } |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2101 | ShadowFrame* shadow_frame = GetCurrentShadowFrame(); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2102 | if (shadow_frame != nullptr) { |
Sebastien Hertz | 714f175 | 2014-04-28 15:03:08 +0200 | [diff] [blame] | 2103 | VisitShadowFrame(shadow_frame); |
| 2104 | } else { |
| 2105 | VisitQuickFrame(); |
| 2106 | } |
| 2107 | return true; |
| 2108 | } |
| 2109 | |
| 2110 | void VisitShadowFrame(ShadowFrame* shadow_frame) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Hiroshi Yamauchi | 92d1a66 | 2014-05-15 21:43:59 -0700 | [diff] [blame] | 2111 | mirror::ArtMethod** method_addr = shadow_frame->GetMethodAddress(); |
| 2112 | visitor_(reinterpret_cast<mirror::Object**>(method_addr), 0 /*ignored*/, this); |
| 2113 | mirror::ArtMethod* m = *method_addr; |
| 2114 | DCHECK(m != nullptr); |
Sebastien Hertz | 714f175 | 2014-04-28 15:03:08 +0200 | [diff] [blame] | 2115 | size_t num_regs = shadow_frame->NumberOfVRegs(); |
| 2116 | if (m->IsNative() || shadow_frame->HasReferenceArray()) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2117 | // handle scope for JNI or References for interpreter. |
Sebastien Hertz | 714f175 | 2014-04-28 15:03:08 +0200 | [diff] [blame] | 2118 | for (size_t reg = 0; reg < num_regs; ++reg) { |
| 2119 | mirror::Object* ref = shadow_frame->GetVRegReference(reg); |
| 2120 | if (ref != nullptr) { |
| 2121 | mirror::Object* new_ref = ref; |
| 2122 | visitor_(&new_ref, reg, this); |
| 2123 | if (new_ref != ref) { |
| 2124 | shadow_frame->SetVRegReference(reg, new_ref); |
| 2125 | } |
| 2126 | } |
| 2127 | } |
| 2128 | } else { |
| 2129 | // Java method. |
| 2130 | // Portable path use DexGcMap and store in Method.native_gc_map_. |
Mathieu Chartier | 957ca1c | 2014-11-21 16:51:29 -0800 | [diff] [blame] | 2131 | const uint8_t* gc_map = m->GetNativeGcMap(sizeof(void*)); |
Sebastien Hertz | 714f175 | 2014-04-28 15:03:08 +0200 | [diff] [blame] | 2132 | CHECK(gc_map != nullptr) << PrettyMethod(m); |
| 2133 | verifier::DexPcToReferenceMap dex_gc_map(gc_map); |
| 2134 | uint32_t dex_pc = shadow_frame->GetDexPC(); |
| 2135 | const uint8_t* reg_bitmap = dex_gc_map.FindBitMap(dex_pc); |
| 2136 | DCHECK(reg_bitmap != nullptr); |
| 2137 | num_regs = std::min(dex_gc_map.RegWidth() * 8, num_regs); |
| 2138 | for (size_t reg = 0; reg < num_regs; ++reg) { |
| 2139 | if (TestBitmap(reg, reg_bitmap)) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2140 | mirror::Object* ref = shadow_frame->GetVRegReference(reg); |
Mathieu Chartier | 423d2a3 | 2013-09-12 17:33:56 -0700 | [diff] [blame] | 2141 | if (ref != nullptr) { |
Mathieu Chartier | 815873e | 2014-02-13 18:02:13 -0800 | [diff] [blame] | 2142 | mirror::Object* new_ref = ref; |
| 2143 | visitor_(&new_ref, reg, this); |
Mathieu Chartier | 423d2a3 | 2013-09-12 17:33:56 -0700 | [diff] [blame] | 2144 | if (new_ref != ref) { |
Sebastien Hertz | 714f175 | 2014-04-28 15:03:08 +0200 | [diff] [blame] | 2145 | shadow_frame->SetVRegReference(reg, new_ref); |
TDYa127 | ce4cc0d | 2012-11-18 16:59:53 -0800 | [diff] [blame] | 2146 | } |
| 2147 | } |
| 2148 | } |
| 2149 | } |
Sebastien Hertz | 714f175 | 2014-04-28 15:03:08 +0200 | [diff] [blame] | 2150 | } |
| 2151 | } |
| 2152 | |
| 2153 | private: |
| 2154 | void VisitQuickFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Andreas Gampe | cf4035a | 2014-05-28 22:43:01 -0700 | [diff] [blame] | 2155 | StackReference<mirror::ArtMethod>* cur_quick_frame = GetCurrentQuickFrame(); |
| 2156 | mirror::ArtMethod* m = cur_quick_frame->AsMirrorPtr(); |
| 2157 | mirror::ArtMethod* old_method = m; |
| 2158 | visitor_(reinterpret_cast<mirror::Object**>(&m), 0 /*ignored*/, this); |
| 2159 | if (m != old_method) { |
| 2160 | cur_quick_frame->Assign(m); |
| 2161 | } |
| 2162 | |
Sebastien Hertz | 714f175 | 2014-04-28 15:03:08 +0200 | [diff] [blame] | 2163 | // Process register map (which native and runtime methods don't have) |
| 2164 | if (!m->IsNative() && !m->IsRuntimeMethod() && !m->IsProxyMethod()) { |
Mathieu Chartier | a7dd038 | 2014-11-20 17:08:58 -0800 | [diff] [blame] | 2165 | if (m->IsOptimized(sizeof(void*))) { |
Vladimir Marko | 4c1c510 | 2014-05-14 16:51:16 +0100 | [diff] [blame] | 2166 | Runtime* runtime = Runtime::Current(); |
Mathieu Chartier | a7dd038 | 2014-11-20 17:08:58 -0800 | [diff] [blame] | 2167 | const void* entry_point = runtime->GetInstrumentation()->GetQuickCodeFor(m, sizeof(void*)); |
Ian Rogers | 6f3dbba | 2014-10-14 17:41:57 -0700 | [diff] [blame] | 2168 | uintptr_t native_pc_offset = m->NativeQuickPcOffset(GetCurrentQuickFramePc(), entry_point); |
Nicolas Geoffray | 004c230 | 2015-03-20 10:06:38 +0000 | [diff] [blame] | 2169 | CodeInfo code_info = m->GetOptimizedCodeInfo(); |
| 2170 | StackMap map = code_info.GetStackMapForNativePcOffset(native_pc_offset); |
| 2171 | MemoryRegion mask = map.GetStackMask(code_info); |
Nicolas Geoffray | 9889396 | 2015-01-21 12:32:32 +0000 | [diff] [blame] | 2172 | // Visit stack entries that hold pointers. |
Nicolas Geoffray | 3946844 | 2014-09-02 15:17:15 +0100 | [diff] [blame] | 2173 | for (size_t i = 0; i < mask.size_in_bits(); ++i) { |
| 2174 | if (mask.LoadBit(i)) { |
| 2175 | StackReference<mirror::Object>* ref_addr = |
| 2176 | reinterpret_cast<StackReference<mirror::Object>*>(cur_quick_frame) + i; |
| 2177 | mirror::Object* ref = ref_addr->AsMirrorPtr(); |
| 2178 | if (ref != nullptr) { |
| 2179 | mirror::Object* new_ref = ref; |
| 2180 | visitor_(&new_ref, -1, this); |
| 2181 | if (ref != new_ref) { |
| 2182 | ref_addr->Assign(new_ref); |
Sebastien Hertz | 714f175 | 2014-04-28 15:03:08 +0200 | [diff] [blame] | 2183 | } |
Nicolas Geoffray | 3946844 | 2014-09-02 15:17:15 +0100 | [diff] [blame] | 2184 | } |
| 2185 | } |
| 2186 | } |
Nicolas Geoffray | 9889396 | 2015-01-21 12:32:32 +0000 | [diff] [blame] | 2187 | // Visit callee-save registers that hold pointers. |
Nicolas Geoffray | 004c230 | 2015-03-20 10:06:38 +0000 | [diff] [blame] | 2188 | uint32_t register_mask = map.GetRegisterMask(code_info); |
Nicolas Geoffray | 9889396 | 2015-01-21 12:32:32 +0000 | [diff] [blame] | 2189 | for (size_t i = 0; i < BitSizeOf<uint32_t>(); ++i) { |
| 2190 | if (register_mask & (1 << i)) { |
| 2191 | mirror::Object** ref_addr = reinterpret_cast<mirror::Object**>(GetGPRAddress(i)); |
| 2192 | if (*ref_addr != nullptr) { |
| 2193 | visitor_(ref_addr, -1, this); |
| 2194 | } |
| 2195 | } |
| 2196 | } |
Nicolas Geoffray | 3946844 | 2014-09-02 15:17:15 +0100 | [diff] [blame] | 2197 | } else { |
Mathieu Chartier | 957ca1c | 2014-11-21 16:51:29 -0800 | [diff] [blame] | 2198 | const uint8_t* native_gc_map = m->GetNativeGcMap(sizeof(void*)); |
Nicolas Geoffray | 3946844 | 2014-09-02 15:17:15 +0100 | [diff] [blame] | 2199 | CHECK(native_gc_map != nullptr) << PrettyMethod(m); |
| 2200 | const DexFile::CodeItem* code_item = m->GetCodeItem(); |
| 2201 | // Can't be nullptr or how would we compile its instructions? |
| 2202 | DCHECK(code_item != nullptr) << PrettyMethod(m); |
| 2203 | NativePcOffsetToReferenceMap map(native_gc_map); |
| 2204 | size_t num_regs = std::min(map.RegWidth() * 8, |
| 2205 | static_cast<size_t>(code_item->registers_size_)); |
| 2206 | if (num_regs > 0) { |
| 2207 | Runtime* runtime = Runtime::Current(); |
Mathieu Chartier | a7dd038 | 2014-11-20 17:08:58 -0800 | [diff] [blame] | 2208 | const void* entry_point = runtime->GetInstrumentation()->GetQuickCodeFor(m, sizeof(void*)); |
Ian Rogers | 6f3dbba | 2014-10-14 17:41:57 -0700 | [diff] [blame] | 2209 | uintptr_t native_pc_offset = m->NativeQuickPcOffset(GetCurrentQuickFramePc(), entry_point); |
Nicolas Geoffray | 3946844 | 2014-09-02 15:17:15 +0100 | [diff] [blame] | 2210 | const uint8_t* reg_bitmap = map.FindBitMap(native_pc_offset); |
| 2211 | DCHECK(reg_bitmap != nullptr); |
| 2212 | const void* code_pointer = mirror::ArtMethod::EntryPointToCodePointer(entry_point); |
Mathieu Chartier | a7dd038 | 2014-11-20 17:08:58 -0800 | [diff] [blame] | 2213 | const VmapTable vmap_table(m->GetVmapTable(code_pointer, sizeof(void*))); |
Nicolas Geoffray | 3946844 | 2014-09-02 15:17:15 +0100 | [diff] [blame] | 2214 | QuickMethodFrameInfo frame_info = m->GetQuickFrameInfo(code_pointer); |
| 2215 | // For all dex registers in the bitmap |
Nicolas Geoffray | 3946844 | 2014-09-02 15:17:15 +0100 | [diff] [blame] | 2216 | DCHECK(cur_quick_frame != nullptr); |
| 2217 | for (size_t reg = 0; reg < num_regs; ++reg) { |
| 2218 | // Does this register hold a reference? |
| 2219 | if (TestBitmap(reg, reg_bitmap)) { |
| 2220 | uint32_t vmap_offset; |
| 2221 | if (vmap_table.IsInContext(reg, kReferenceVReg, &vmap_offset)) { |
| 2222 | int vmap_reg = vmap_table.ComputeRegister(frame_info.CoreSpillMask(), vmap_offset, |
| 2223 | kReferenceVReg); |
| 2224 | // This is sound as spilled GPRs will be word sized (ie 32 or 64bit). |
| 2225 | mirror::Object** ref_addr = |
| 2226 | reinterpret_cast<mirror::Object**>(GetGPRAddress(vmap_reg)); |
| 2227 | if (*ref_addr != nullptr) { |
| 2228 | visitor_(ref_addr, reg, this); |
| 2229 | } |
| 2230 | } else { |
| 2231 | StackReference<mirror::Object>* ref_addr = |
Nicolas Geoffray | 15b9d52 | 2015-03-12 15:05:13 +0000 | [diff] [blame] | 2232 | reinterpret_cast<StackReference<mirror::Object>*>(GetVRegAddrFromQuickCode( |
| 2233 | cur_quick_frame, code_item, frame_info.CoreSpillMask(), |
| 2234 | frame_info.FpSpillMask(), frame_info.FrameSizeInBytes(), reg)); |
Nicolas Geoffray | 3946844 | 2014-09-02 15:17:15 +0100 | [diff] [blame] | 2235 | mirror::Object* ref = ref_addr->AsMirrorPtr(); |
| 2236 | if (ref != nullptr) { |
| 2237 | mirror::Object* new_ref = ref; |
| 2238 | visitor_(&new_ref, reg, this); |
| 2239 | if (ref != new_ref) { |
| 2240 | ref_addr->Assign(new_ref); |
| 2241 | } |
Mathieu Chartier | 423d2a3 | 2013-09-12 17:33:56 -0700 | [diff] [blame] | 2242 | } |
Ian Rogers | 0c7abda | 2012-09-19 13:33:42 -0700 | [diff] [blame] | 2243 | } |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2244 | } |
Shih-wei Liao | 4f894e3 | 2011-09-27 21:33:19 -0700 | [diff] [blame] | 2245 | } |
Ian Rogers | d6b1f61 | 2011-09-27 13:38:14 -0700 | [diff] [blame] | 2246 | } |
| 2247 | } |
| 2248 | } |
Ian Rogers | d6b1f61 | 2011-09-27 13:38:14 -0700 | [diff] [blame] | 2249 | } |
| 2250 | |
Mathieu Chartier | 815873e | 2014-02-13 18:02:13 -0800 | [diff] [blame] | 2251 | static bool TestBitmap(size_t reg, const uint8_t* reg_vector) { |
| 2252 | return ((reg_vector[reg / kBitsPerByte] >> (reg % kBitsPerByte)) & 0x01) != 0; |
Ian Rogers | d6b1f61 | 2011-09-27 13:38:14 -0700 | [diff] [blame] | 2253 | } |
| 2254 | |
Mathieu Chartier | 6f1c949 | 2012-10-15 12:08:41 -0700 | [diff] [blame] | 2255 | // Visitor for when we visit a root. |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 2256 | RootVisitor& visitor_; |
Ian Rogers | d6b1f61 | 2011-09-27 13:38:14 -0700 | [diff] [blame] | 2257 | }; |
| 2258 | |
Mathieu Chartier | 6f1c949 | 2012-10-15 12:08:41 -0700 | [diff] [blame] | 2259 | class RootCallbackVisitor { |
| 2260 | public: |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 2261 | RootCallbackVisitor(RootVisitor* visitor, uint32_t tid) : visitor_(visitor), tid_(tid) {} |
Mathieu Chartier | 6f1c949 | 2012-10-15 12:08:41 -0700 | [diff] [blame] | 2262 | |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 2263 | void operator()(mirror::Object** obj, size_t vreg, const StackVisitor* stack_visitor) const |
| 2264 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 2265 | visitor_->VisitRoot(obj, JavaFrameRootInfo(tid_, stack_visitor, vreg)); |
Mathieu Chartier | 6f1c949 | 2012-10-15 12:08:41 -0700 | [diff] [blame] | 2266 | } |
| 2267 | |
| 2268 | private: |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 2269 | RootVisitor* const visitor_; |
Mathieu Chartier | 83c8ee0 | 2014-01-28 14:50:23 -0800 | [diff] [blame] | 2270 | const uint32_t tid_; |
Mathieu Chartier | 6f1c949 | 2012-10-15 12:08:41 -0700 | [diff] [blame] | 2271 | }; |
| 2272 | |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 2273 | void Thread::VisitRoots(RootVisitor* visitor) { |
| 2274 | const uint32_t thread_id = GetThreadId(); |
| 2275 | visitor->VisitRootIfNonNull(&tlsPtr_.opeer, RootInfo(kRootThreadObject, thread_id)); |
Sebastien Hertz | fd3077e | 2014-04-23 10:32:43 +0200 | [diff] [blame] | 2276 | if (tlsPtr_.exception != nullptr && tlsPtr_.exception != GetDeoptimizationException()) { |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 2277 | visitor->VisitRoot(reinterpret_cast<mirror::Object**>(&tlsPtr_.exception), |
| 2278 | RootInfo(kRootNativeStack, thread_id)); |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 2279 | } |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 2280 | visitor->VisitRootIfNonNull(&tlsPtr_.monitor_enter_object, RootInfo(kRootNativeStack, thread_id)); |
| 2281 | tlsPtr_.jni_env->locals.VisitRoots(visitor, RootInfo(kRootJNILocal, thread_id)); |
| 2282 | tlsPtr_.jni_env->monitors.VisitRoots(visitor, RootInfo(kRootJNIMonitor, thread_id)); |
| 2283 | HandleScopeVisitRoots(visitor, thread_id); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2284 | if (tlsPtr_.debug_invoke_req != nullptr) { |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 2285 | tlsPtr_.debug_invoke_req->VisitRoots(visitor, RootInfo(kRootDebugger, thread_id)); |
Mathieu Chartier | 3b05e9b | 2014-03-25 09:29:43 -0700 | [diff] [blame] | 2286 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2287 | if (tlsPtr_.single_step_control != nullptr) { |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 2288 | tlsPtr_.single_step_control->VisitRoots(visitor, RootInfo(kRootDebugger, thread_id)); |
Mathieu Chartier | 3b05e9b | 2014-03-25 09:29:43 -0700 | [diff] [blame] | 2289 | } |
Sebastien Hertz | 714f175 | 2014-04-28 15:03:08 +0200 | [diff] [blame] | 2290 | if (tlsPtr_.deoptimization_shadow_frame != nullptr) { |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 2291 | RootCallbackVisitor visitor_to_callback(visitor, thread_id); |
| 2292 | ReferenceMapVisitor<RootCallbackVisitor> mapper(this, nullptr, visitor_to_callback); |
Sebastien Hertz | 714f175 | 2014-04-28 15:03:08 +0200 | [diff] [blame] | 2293 | for (ShadowFrame* shadow_frame = tlsPtr_.deoptimization_shadow_frame; shadow_frame != nullptr; |
| 2294 | shadow_frame = shadow_frame->GetLink()) { |
| 2295 | mapper.VisitShadowFrame(shadow_frame); |
| 2296 | } |
| 2297 | } |
Andreas Gampe | 2a0d4ec | 2014-06-02 22:05:22 -0700 | [diff] [blame] | 2298 | if (tlsPtr_.shadow_frame_under_construction != nullptr) { |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 2299 | RootCallbackVisitor visitor_to_callback(visitor, thread_id); |
Mathieu Chartier | e34fa1d | 2015-01-14 14:55:47 -0800 | [diff] [blame] | 2300 | ReferenceMapVisitor<RootCallbackVisitor> mapper(this, nullptr, visitor_to_callback); |
Andreas Gampe | 2a0d4ec | 2014-06-02 22:05:22 -0700 | [diff] [blame] | 2301 | for (ShadowFrame* shadow_frame = tlsPtr_.shadow_frame_under_construction; |
| 2302 | shadow_frame != nullptr; |
| 2303 | shadow_frame = shadow_frame->GetLink()) { |
| 2304 | mapper.VisitShadowFrame(shadow_frame); |
| 2305 | } |
| 2306 | } |
Mathieu Chartier | 12d625f | 2015-03-13 11:33:37 -0700 | [diff] [blame] | 2307 | if (tlsPtr_.method_verifier != nullptr) { |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 2308 | tlsPtr_.method_verifier->VisitRoots(visitor, RootInfo(kRootNativeStack, thread_id)); |
Mathieu Chartier | 12d625f | 2015-03-13 11:33:37 -0700 | [diff] [blame] | 2309 | } |
Ian Rogers | d6b1f61 | 2011-09-27 13:38:14 -0700 | [diff] [blame] | 2310 | // Visit roots on this thread's stack |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2311 | Context* context = GetLongJumpContext(); |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 2312 | RootCallbackVisitor visitor_to_callback(visitor, thread_id); |
Mathieu Chartier | e34fa1d | 2015-01-14 14:55:47 -0800 | [diff] [blame] | 2313 | ReferenceMapVisitor<RootCallbackVisitor> mapper(this, context, visitor_to_callback); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2314 | mapper.WalkStack(); |
| 2315 | ReleaseLongJumpContext(context); |
Mathieu Chartier | 423d2a3 | 2013-09-12 17:33:56 -0700 | [diff] [blame] | 2316 | for (instrumentation::InstrumentationStackFrame& frame : *GetInstrumentationStack()) { |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 2317 | visitor->VisitRootIfNonNull(&frame.this_object_, RootInfo(kRootVMInternal, thread_id)); |
| 2318 | visitor->VisitRoot(reinterpret_cast<mirror::Object**>(&frame.method_), |
| 2319 | RootInfo(kRootVMInternal, thread_id)); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2320 | } |
Elliott Hughes | 410c0c8 | 2011-09-01 17:58:25 -0700 | [diff] [blame] | 2321 | } |
| 2322 | |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 2323 | class VerifyRootVisitor : public SingleRootVisitor { |
| 2324 | public: |
| 2325 | void VisitRoot(mirror::Object* root, const RootInfo& info ATTRIBUTE_UNUSED) |
| 2326 | OVERRIDE SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 2327 | VerifyObject(root); |
| 2328 | } |
| 2329 | }; |
jeffhao | 2504552 | 2012-03-13 19:34:37 -0700 | [diff] [blame] | 2330 | |
Ian Rogers | 04d7aa9 | 2013-03-16 14:29:17 -0700 | [diff] [blame] | 2331 | void Thread::VerifyStackImpl() { |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 2332 | VerifyRootVisitor visitor; |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 2333 | std::unique_ptr<Context> context(Context::Create()); |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 2334 | RootCallbackVisitor visitor_to_callback(&visitor, GetThreadId()); |
| 2335 | ReferenceMapVisitor<RootCallbackVisitor> mapper(this, context.get(), visitor_to_callback); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2336 | mapper.WalkStack(); |
jeffhao | 2504552 | 2012-03-13 19:34:37 -0700 | [diff] [blame] | 2337 | } |
jeffhao | 2504552 | 2012-03-13 19:34:37 -0700 | [diff] [blame] | 2338 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2339 | // Set the stack end to that to be used during a stack overflow |
| 2340 | void Thread::SetStackEndForStackOverflow() { |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 2341 | // During stack overflow we allow use of the full stack. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2342 | if (tlsPtr_.stack_end == tlsPtr_.stack_begin) { |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 2343 | // However, we seem to have already extended to use the full stack. |
| 2344 | LOG(ERROR) << "Need to increase kStackOverflowReservedBytes (currently " |
Andreas Gampe | 7ea6f79 | 2014-07-14 16:21:44 -0700 | [diff] [blame] | 2345 | << GetStackOverflowReservedBytes(kRuntimeISA) << ")?"; |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 2346 | DumpStack(LOG(ERROR)); |
| 2347 | LOG(FATAL) << "Recursive stack overflow."; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2348 | } |
| 2349 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2350 | tlsPtr_.stack_end = tlsPtr_.stack_begin; |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 2351 | |
| 2352 | // Remove the stack overflow protection if is it set up. |
| 2353 | bool implicit_stack_check = !Runtime::Current()->ExplicitStackOverflowChecks(); |
| 2354 | if (implicit_stack_check) { |
| 2355 | if (!UnprotectStack()) { |
| 2356 | LOG(ERROR) << "Unable to remove stack protection for stack overflow"; |
| 2357 | } |
| 2358 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2359 | } |
| 2360 | |
Ian Rogers | 1373595 | 2014-10-08 12:43:28 -0700 | [diff] [blame] | 2361 | void Thread::SetTlab(uint8_t* start, uint8_t* end) { |
Mathieu Chartier | 692fafd | 2013-11-29 17:24:40 -0800 | [diff] [blame] | 2362 | DCHECK_LE(start, end); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2363 | tlsPtr_.thread_local_start = start; |
| 2364 | tlsPtr_.thread_local_pos = tlsPtr_.thread_local_start; |
| 2365 | tlsPtr_.thread_local_end = end; |
| 2366 | tlsPtr_.thread_local_objects = 0; |
Mathieu Chartier | 692fafd | 2013-11-29 17:24:40 -0800 | [diff] [blame] | 2367 | } |
| 2368 | |
Hiroshi Yamauchi | c93c530 | 2014-03-20 16:15:37 -0700 | [diff] [blame] | 2369 | bool Thread::HasTlab() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2370 | bool has_tlab = tlsPtr_.thread_local_pos != nullptr; |
Hiroshi Yamauchi | c93c530 | 2014-03-20 16:15:37 -0700 | [diff] [blame] | 2371 | if (has_tlab) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2372 | DCHECK(tlsPtr_.thread_local_start != nullptr && tlsPtr_.thread_local_end != nullptr); |
Hiroshi Yamauchi | c93c530 | 2014-03-20 16:15:37 -0700 | [diff] [blame] | 2373 | } else { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2374 | DCHECK(tlsPtr_.thread_local_start == nullptr && tlsPtr_.thread_local_end == nullptr); |
Hiroshi Yamauchi | c93c530 | 2014-03-20 16:15:37 -0700 | [diff] [blame] | 2375 | } |
| 2376 | return has_tlab; |
| 2377 | } |
| 2378 | |
Elliott Hughes | 330304d | 2011-08-12 14:28:05 -0700 | [diff] [blame] | 2379 | std::ostream& operator<<(std::ostream& os, const Thread& thread) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2380 | thread.ShortDump(os); |
Elliott Hughes | 330304d | 2011-08-12 14:28:05 -0700 | [diff] [blame] | 2381 | return os; |
| 2382 | } |
| 2383 | |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 2384 | void Thread::ProtectStack() { |
| 2385 | void* pregion = tlsPtr_.stack_begin - kStackOverflowProtectedSize; |
| 2386 | VLOG(threads) << "Protecting stack at " << pregion; |
| 2387 | if (mprotect(pregion, kStackOverflowProtectedSize, PROT_NONE) == -1) { |
| 2388 | LOG(FATAL) << "Unable to create protected region in stack for implicit overflow check. " |
| 2389 | "Reason: " |
| 2390 | << strerror(errno) << " size: " << kStackOverflowProtectedSize; |
| 2391 | } |
| 2392 | } |
| 2393 | |
| 2394 | bool Thread::UnprotectStack() { |
| 2395 | void* pregion = tlsPtr_.stack_begin - kStackOverflowProtectedSize; |
| 2396 | VLOG(threads) << "Unprotecting stack at " << pregion; |
| 2397 | return mprotect(pregion, kStackOverflowProtectedSize, PROT_READ|PROT_WRITE) == 0; |
| 2398 | } |
| 2399 | |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 2400 | void Thread::ActivateSingleStepControl(SingleStepControl* ssc) { |
| 2401 | CHECK(Dbg::IsDebuggerActive()); |
| 2402 | CHECK(GetSingleStepControl() == nullptr) << "Single step already active in thread " << *this; |
| 2403 | CHECK(ssc != nullptr); |
| 2404 | tlsPtr_.single_step_control = ssc; |
| 2405 | } |
| 2406 | |
| 2407 | void Thread::DeactivateSingleStepControl() { |
| 2408 | CHECK(Dbg::IsDebuggerActive()); |
| 2409 | CHECK(GetSingleStepControl() != nullptr) << "Single step not active in thread " << *this; |
| 2410 | SingleStepControl* ssc = GetSingleStepControl(); |
| 2411 | tlsPtr_.single_step_control = nullptr; |
| 2412 | delete ssc; |
| 2413 | } |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 2414 | |
Sebastien Hertz | 1558b57 | 2015-02-25 15:05:59 +0100 | [diff] [blame] | 2415 | void Thread::SetDebugInvokeReq(DebugInvokeReq* req) { |
| 2416 | CHECK(Dbg::IsDebuggerActive()); |
| 2417 | CHECK(GetInvokeReq() == nullptr) << "Debug invoke req already active in thread " << *this; |
| 2418 | CHECK(Thread::Current() != this) << "Debug invoke can't be dispatched by the thread itself"; |
| 2419 | CHECK(req != nullptr); |
| 2420 | tlsPtr_.debug_invoke_req = req; |
| 2421 | } |
| 2422 | |
| 2423 | void Thread::ClearDebugInvokeReq() { |
| 2424 | CHECK(Dbg::IsDebuggerActive()); |
| 2425 | CHECK(GetInvokeReq() != nullptr) << "Debug invoke req not active in thread " << *this; |
| 2426 | CHECK(Thread::Current() == this) << "Debug invoke must be finished by the thread itself"; |
| 2427 | // We do not own the DebugInvokeReq* so we must not delete it, it is the responsibility of |
| 2428 | // the owner (the JDWP thread). |
| 2429 | tlsPtr_.debug_invoke_req = nullptr; |
| 2430 | } |
| 2431 | |
Mathieu Chartier | 12d625f | 2015-03-13 11:33:37 -0700 | [diff] [blame] | 2432 | void Thread::SetVerifier(verifier::MethodVerifier* verifier) { |
| 2433 | CHECK(tlsPtr_.method_verifier == nullptr); |
| 2434 | tlsPtr_.method_verifier = verifier; |
| 2435 | } |
| 2436 | |
| 2437 | void Thread::ClearVerifier(verifier::MethodVerifier* verifier) { |
| 2438 | CHECK_EQ(tlsPtr_.method_verifier, verifier); |
| 2439 | tlsPtr_.method_verifier = nullptr; |
| 2440 | } |
| 2441 | |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 2442 | } // namespace art |