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> |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 32 | |
Ian Rogers | 166db04 | 2013-07-26 12:05:57 -0700 | [diff] [blame] | 33 | #include "arch/context.h" |
Elliott Hughes | 76b6167 | 2012-12-12 17:47:30 -0800 | [diff] [blame] | 34 | #include "base/mutex.h" |
Elliott Hughes | a5b897e | 2011-08-16 11:33:06 -0700 | [diff] [blame] | 35 | #include "class_linker.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 36 | #include "class_linker-inl.h" |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 37 | #include "cutils/atomic.h" |
| 38 | #include "cutils/atomic-inline.h" |
Elliott Hughes | 46e251b | 2012-05-22 15:10:45 -0700 | [diff] [blame] | 39 | #include "debugger.h" |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 40 | #include "dex_file-inl.h" |
Ian Rogers | 7655f29 | 2013-07-29 11:07:13 -0700 | [diff] [blame] | 41 | #include "entrypoints/entrypoint_utils.h" |
Mathieu Chartier | d889178 | 2014-03-02 13:28:37 -0800 | [diff] [blame] | 42 | #include "entrypoints/quick/quick_alloc_entrypoints.h" |
Ian Rogers | 0c7abda | 2012-09-19 13:33:42 -0700 | [diff] [blame] | 43 | #include "gc_map.h" |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 44 | #include "gc/accounting/card_table-inl.h" |
| 45 | #include "gc/heap.h" |
| 46 | #include "gc/space/space.h" |
Mathieu Chartier | c56057e | 2014-05-04 13:18:58 -0700 | [diff] [blame] | 47 | #include "indirect_reference_table-inl.h" |
Elliott Hughes | c5f7c91 | 2011-08-18 14:00:42 -0700 | [diff] [blame] | 48 | #include "jni_internal.h" |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 49 | #include "mirror/art_field-inl.h" |
| 50 | #include "mirror/art_method-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 51 | #include "mirror/class-inl.h" |
| 52 | #include "mirror/class_loader.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 53 | #include "mirror/object_array-inl.h" |
| 54 | #include "mirror/stack_trace_element.h" |
Elliott Hughes | 8e4aac5 | 2011-09-26 17:03:36 -0700 | [diff] [blame] | 55 | #include "monitor.h" |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 56 | #include "object_utils.h" |
Sebastien Hertz | fd3077e | 2014-04-23 10:32:43 +0200 | [diff] [blame] | 57 | #include "quick_exception_handler.h" |
Jesse Wilson | 9a6bae8 | 2011-11-14 14:57:30 -0500 | [diff] [blame] | 58 | #include "reflection.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 59 | #include "runtime.h" |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 60 | #include "scoped_thread_state_change.h" |
Elliott Hughes | 46e251b | 2012-05-22 15:10:45 -0700 | [diff] [blame] | 61 | #include "ScopedLocalRef.h" |
Anwar Ghuloum | 3c539ff | 2013-06-20 08:58:23 -0700 | [diff] [blame] | 62 | #include "ScopedUtfChars.h" |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 63 | #include "sirt_ref.h" |
Elliott Hughes | 68e7652 | 2011-10-05 13:22:16 -0700 | [diff] [blame] | 64 | #include "stack.h" |
| 65 | #include "stack_indirect_reference_table.h" |
Ian Rogers | 693ff61 | 2013-02-01 10:56:12 -0800 | [diff] [blame] | 66 | #include "thread-inl.h" |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 67 | #include "thread_list.h" |
Elliott Hughes | a095764 | 2011-09-02 14:27:33 -0700 | [diff] [blame] | 68 | #include "utils.h" |
TDYa127 | ce4cc0d | 2012-11-18 16:59:53 -0800 | [diff] [blame] | 69 | #include "verifier/dex_gc_map.h" |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 70 | #include "verify_object-inl.h" |
Ian Rogers | 1809a72 | 2013-08-09 22:05:32 -0700 | [diff] [blame] | 71 | #include "vmap_table.h" |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 72 | #include "well_known_classes.h" |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 73 | |
| 74 | namespace art { |
| 75 | |
Ian Rogers | 0878d65 | 2013-04-18 17:38:35 -0700 | [diff] [blame] | 76 | bool Thread::is_started_ = false; |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 77 | pthread_key_t Thread::pthread_key_self_; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 78 | ConditionVariable* Thread::resume_cond_ = nullptr; |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 79 | |
Elliott Hughes | 7dc5166 | 2012-05-16 14:48:43 -0700 | [diff] [blame] | 80 | static const char* kThreadNameDuringStartup = "<native thread without managed peer>"; |
| 81 | |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 82 | void Thread::InitCardTable() { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 83 | tlsPtr_.card_table = Runtime::Current()->GetHeap()->GetCardTable()->GetBiasedBegin(); |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 84 | } |
| 85 | |
Elliott Hughes | 3ea0f42 | 2012-04-16 17:01:43 -0700 | [diff] [blame] | 86 | static void UnimplementedEntryPoint() { |
| 87 | UNIMPLEMENTED(FATAL); |
| 88 | } |
| 89 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 90 | void InitEntryPoints(InterpreterEntryPoints* ipoints, JniEntryPoints* jpoints, |
| 91 | PortableEntryPoints* ppoints, QuickEntryPoints* qpoints); |
Ian Rogers | 7655f29 | 2013-07-29 11:07:13 -0700 | [diff] [blame] | 92 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 93 | void Thread::InitTlsEntryPoints() { |
Elliott Hughes | 3ea0f42 | 2012-04-16 17:01:43 -0700 | [diff] [blame] | 94 | // 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] | 95 | uintptr_t* begin = reinterpret_cast<uintptr_t*>(&tlsPtr_.interpreter_entrypoints); |
| 96 | uintptr_t* end = reinterpret_cast<uintptr_t*>(reinterpret_cast<uint8_t*>(begin) + |
| 97 | sizeof(tlsPtr_.quick_entrypoints)); |
Ian Rogers | 7655f29 | 2013-07-29 11:07:13 -0700 | [diff] [blame] | 98 | for (uintptr_t* it = begin; it != end; ++it) { |
| 99 | *it = reinterpret_cast<uintptr_t>(UnimplementedEntryPoint); |
| 100 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 101 | InitEntryPoints(&tlsPtr_.interpreter_entrypoints, &tlsPtr_.jni_entrypoints, |
| 102 | &tlsPtr_.portable_entrypoints, &tlsPtr_.quick_entrypoints); |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 103 | } |
| 104 | |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 105 | void Thread::ResetQuickAllocEntryPointsForThread() { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 106 | ResetQuickAllocEntryPoints(&tlsPtr_.quick_entrypoints); |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 107 | } |
| 108 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 109 | void Thread::SetDeoptimizationShadowFrame(ShadowFrame* sf) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 110 | tlsPtr_.deoptimization_shadow_frame = sf; |
buzbee | 3ea4ec5 | 2011-08-22 17:37:19 -0700 | [diff] [blame] | 111 | } |
| 112 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 113 | void Thread::SetDeoptimizationReturnValue(const JValue& ret_val) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 114 | tls64_.deoptimization_return_value.SetJ(ret_val.GetJ()); |
Ian Rogers | 306057f | 2012-11-26 12:45:53 -0800 | [diff] [blame] | 115 | } |
| 116 | |
| 117 | ShadowFrame* Thread::GetAndClearDeoptimizationShadowFrame(JValue* ret_val) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 118 | ShadowFrame* sf = tlsPtr_.deoptimization_shadow_frame; |
| 119 | tlsPtr_.deoptimization_shadow_frame = nullptr; |
| 120 | ret_val->SetJ(tls64_.deoptimization_return_value.GetJ()); |
Ian Rogers | 306057f | 2012-11-26 12:45:53 -0800 | [diff] [blame] | 121 | return sf; |
| 122 | } |
| 123 | |
Brian Carlstrom | caabb1b | 2011-10-11 18:09:13 -0700 | [diff] [blame] | 124 | void Thread::InitTid() { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 125 | tls32_.tid = ::art::GetTid(); |
Brian Carlstrom | caabb1b | 2011-10-11 18:09:13 -0700 | [diff] [blame] | 126 | } |
| 127 | |
Brian Carlstrom | caabb1b | 2011-10-11 18:09:13 -0700 | [diff] [blame] | 128 | void Thread::InitAfterFork() { |
Elliott Hughes | 8029cbe | 2012-05-22 09:13:08 -0700 | [diff] [blame] | 129 | // One thread (us) survived the fork, but we have a new tid so we need to |
| 130 | // update the value stashed in this Thread*. |
Brian Carlstrom | caabb1b | 2011-10-11 18:09:13 -0700 | [diff] [blame] | 131 | InitTid(); |
Brian Carlstrom | caabb1b | 2011-10-11 18:09:13 -0700 | [diff] [blame] | 132 | } |
| 133 | |
Brian Carlstrom | 78128a6 | 2011-09-15 17:21:19 -0700 | [diff] [blame] | 134 | void* Thread::CreateCallback(void* arg) { |
Elliott Hughes | 93e74e8 | 2011-09-13 11:07:03 -0700 | [diff] [blame] | 135 | Thread* self = reinterpret_cast<Thread*>(arg); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 136 | Runtime* runtime = Runtime::Current(); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 137 | if (runtime == nullptr) { |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 138 | LOG(ERROR) << "Thread attaching to non-existent runtime: " << *self; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 139 | return nullptr; |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 140 | } |
| 141 | { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 142 | // TODO: pass self to MutexLock - requires self to equal Thread::Current(), which is only true |
| 143 | // after self->Init(). |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 144 | MutexLock mu(nullptr, *Locks::runtime_shutdown_lock_); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 145 | // Check that if we got here we cannot be shutting down (as shutdown should never have started |
| 146 | // while threads are being born). |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 147 | CHECK(!runtime->IsShuttingDownLocked()); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 148 | self->Init(runtime->GetThreadList(), runtime->GetJavaVM()); |
| 149 | Runtime::Current()->EndThreadBirth(); |
| 150 | } |
Elliott Hughes | 47179f7 | 2011-10-27 16:44:39 -0700 | [diff] [blame] | 151 | { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 152 | ScopedObjectAccess soa(self); |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 153 | |
| 154 | // Copy peer into self, deleting global reference when done. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 155 | CHECK(self->tlsPtr_.jpeer != nullptr); |
| 156 | self->tlsPtr_.opeer = soa.Decode<mirror::Object*>(self->tlsPtr_.jpeer); |
| 157 | self->GetJniEnv()->DeleteGlobalRef(self->tlsPtr_.jpeer); |
| 158 | self->tlsPtr_.jpeer = nullptr; |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 159 | |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 160 | { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 161 | SirtRef<mirror::String> thread_name(self, self->GetThreadName(soa)); |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 162 | self->SetThreadName(thread_name->ToModifiedUtf8().c_str()); |
| 163 | } |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 164 | Dbg::PostThreadStart(self); |
| 165 | |
| 166 | // Invoke the 'run' method of our java.lang.Thread. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 167 | mirror::Object* receiver = self->tlsPtr_.opeer; |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 168 | jmethodID mid = WellKnownClasses::java_lang_Thread_run; |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 169 | InvokeVirtualOrInterfaceWithJValues(soa, receiver, mid, nullptr); |
Elliott Hughes | 47179f7 | 2011-10-27 16:44:39 -0700 | [diff] [blame] | 170 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 171 | // Detach and delete self. |
| 172 | Runtime::Current()->GetThreadList()->Unregister(self); |
Elliott Hughes | 93e74e8 | 2011-09-13 11:07:03 -0700 | [diff] [blame] | 173 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 174 | return nullptr; |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 175 | } |
| 176 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 177 | Thread* Thread::FromManagedThread(const ScopedObjectAccessUnchecked& soa, |
| 178 | mirror::Object* thread_peer) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 179 | mirror::ArtField* f = soa.DecodeField(WellKnownClasses::java_lang_Thread_nativePeer); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 180 | 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] | 181 | // Sanity check that if we have a result it is either suspended or we hold the thread_list_lock_ |
| 182 | // to stop it from going away. |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 183 | if (kIsDebugBuild) { |
| 184 | MutexLock mu(soa.Self(), *Locks::thread_suspend_count_lock_); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 185 | if (result != nullptr && !result->IsSuspended()) { |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 186 | Locks::thread_list_lock_->AssertHeld(soa.Self()); |
| 187 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 188 | } |
| 189 | return result; |
Elliott Hughes | 761928d | 2011-11-16 18:33:03 -0800 | [diff] [blame] | 190 | } |
| 191 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 192 | Thread* Thread::FromManagedThread(const ScopedObjectAccessUnchecked& soa, jobject java_thread) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 193 | return FromManagedThread(soa, soa.Decode<mirror::Object*>(java_thread)); |
Elliott Hughes | 01158d7 | 2011-09-19 19:47:10 -0700 | [diff] [blame] | 194 | } |
| 195 | |
Elliott Hughes | ab7b9dc | 2012-03-27 13:16:29 -0700 | [diff] [blame] | 196 | static size_t FixStackSize(size_t stack_size) { |
Elliott Hughes | 7502e2a | 2011-10-02 13:24:37 -0700 | [diff] [blame] | 197 | // A stack size of zero means "use the default". |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 198 | if (stack_size == 0) { |
| 199 | stack_size = Runtime::Current()->GetDefaultStackSize(); |
| 200 | } |
Carl Shapiro | 61e019d | 2011-07-14 16:53:09 -0700 | [diff] [blame] | 201 | |
Brian Carlstrom | 6414a97 | 2012-04-14 14:20:04 -0700 | [diff] [blame] | 202 | // Dalvik used the bionic pthread default stack size for native threads, |
| 203 | // so include that here to support apps that expect large native stacks. |
| 204 | stack_size += 1 * MB; |
| 205 | |
Elliott Hughes | 7502e2a | 2011-10-02 13:24:37 -0700 | [diff] [blame] | 206 | // It's not possible to request a stack smaller than the system-defined PTHREAD_STACK_MIN. |
| 207 | if (stack_size < PTHREAD_STACK_MIN) { |
| 208 | stack_size = PTHREAD_STACK_MIN; |
| 209 | } |
| 210 | |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 211 | if (Runtime::Current()->ExplicitStackOverflowChecks()) { |
| 212 | // It's likely that callers are trying to ensure they have at least a certain amount of |
| 213 | // stack space, so we should add our reserved space on top of what they requested, rather |
| 214 | // than implicitly take it away from them. |
| 215 | stack_size += Thread::kStackOverflowReservedBytes; |
| 216 | } else { |
| 217 | // If we are going to use implicit stack checks, allocate space for the protected |
| 218 | // region at the bottom of the stack. |
| 219 | stack_size += Thread::kStackOverflowImplicitCheckSize; |
| 220 | } |
Elliott Hughes | 7502e2a | 2011-10-02 13:24:37 -0700 | [diff] [blame] | 221 | |
| 222 | // Some systems require the stack size to be a multiple of the system page size, so round up. |
| 223 | stack_size = RoundUp(stack_size, kPageSize); |
| 224 | |
| 225 | return stack_size; |
| 226 | } |
| 227 | |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 228 | // Install a protected region in the stack. This is used to trigger a SIGSEGV if a stack |
| 229 | // overflow is detected. It is located right below the stack_end_. Just below that |
| 230 | // is the StackOverflow reserved region used when creating the StackOverflow |
| 231 | // exception. |
| 232 | void Thread::InstallImplicitProtection(bool is_main_stack) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 233 | byte* pregion = tlsPtr_.stack_end; |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 234 | |
| 235 | constexpr uint32_t kMarker = 0xdadadada; |
| 236 | uintptr_t *marker = reinterpret_cast<uintptr_t*>(pregion); |
| 237 | if (*marker == kMarker) { |
| 238 | // The region has already been set up. |
| 239 | return; |
| 240 | } |
| 241 | // Add marker so that we can detect a second attempt to do this. |
| 242 | *marker = kMarker; |
| 243 | |
| 244 | pregion -= kStackOverflowProtectedSize; |
| 245 | |
| 246 | // Touch the pages in the region to map them in. Otherwise mprotect fails. Only |
Dave Allison | 5cd3375 | 2014-04-15 15:57:58 -0700 | [diff] [blame] | 247 | // need to do this on the main stack. We only need to touch one byte per page. |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 248 | if (is_main_stack) { |
Dave Allison | 5cd3375 | 2014-04-15 15:57:58 -0700 | [diff] [blame] | 249 | byte* start = pregion; |
| 250 | byte* end = pregion + kStackOverflowProtectedSize; |
| 251 | while (start < end) { |
| 252 | *start = static_cast<byte>(0); |
| 253 | start += kPageSize; |
| 254 | } |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 255 | } |
Dave Allison | 5cd3375 | 2014-04-15 15:57:58 -0700 | [diff] [blame] | 256 | |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 257 | VLOG(threads) << "installing stack protected region at " << std::hex << |
| 258 | static_cast<void*>(pregion) << " to " << |
| 259 | static_cast<void*>(pregion + kStackOverflowProtectedSize - 1); |
| 260 | |
| 261 | if (mprotect(pregion, kStackOverflowProtectedSize, PROT_NONE) == -1) { |
| 262 | LOG(FATAL) << "Unable to create protected region in stack for implicit overflow check. Reason:" |
| 263 | << strerror(errno); |
| 264 | } |
Dave Allison | 5cd3375 | 2014-04-15 15:57:58 -0700 | [diff] [blame] | 265 | |
| 266 | // Tell the kernel that we won't be needing these pages any more. |
| 267 | if (is_main_stack) { |
| 268 | madvise(pregion, kStackOverflowProtectedSize, MADV_DONTNEED); |
| 269 | } |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 270 | } |
| 271 | |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 272 | 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] | 273 | CHECK(java_peer != nullptr); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 274 | Thread* self = static_cast<JNIEnvExt*>(env)->self; |
| 275 | Runtime* runtime = Runtime::Current(); |
Mathieu Chartier | dbe6f46 | 2012-09-25 16:54:50 -0700 | [diff] [blame] | 276 | |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 277 | // Atomically start the birth of the thread ensuring the runtime isn't shutting down. |
| 278 | bool thread_start_during_shutdown = false; |
Elliott Hughes | 47179f7 | 2011-10-27 16:44:39 -0700 | [diff] [blame] | 279 | { |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 280 | MutexLock mu(self, *Locks::runtime_shutdown_lock_); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 281 | if (runtime->IsShuttingDownLocked()) { |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 282 | thread_start_during_shutdown = true; |
| 283 | } else { |
| 284 | runtime->StartThreadBirth(); |
| 285 | } |
Elliott Hughes | 47179f7 | 2011-10-27 16:44:39 -0700 | [diff] [blame] | 286 | } |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 287 | if (thread_start_during_shutdown) { |
| 288 | ScopedLocalRef<jclass> error_class(env, env->FindClass("java/lang/InternalError")); |
| 289 | env->ThrowNew(error_class.get(), "Thread starting during runtime shutdown"); |
| 290 | return; |
| 291 | } |
| 292 | |
| 293 | Thread* child_thread = new Thread(is_daemon); |
| 294 | // Use global JNI ref to hold peer live while child thread starts. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 295 | child_thread->tlsPtr_.jpeer = env->NewGlobalRef(java_peer); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 296 | stack_size = FixStackSize(stack_size); |
| 297 | |
Anwar Ghuloum | 3c50a4b | 2013-06-21 13:05:23 -0700 | [diff] [blame] | 298 | // 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] | 299 | // assign it. |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 300 | env->SetLongField(java_peer, WellKnownClasses::java_lang_Thread_nativePeer, |
| 301 | reinterpret_cast<jlong>(child_thread)); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 302 | |
| 303 | pthread_t new_pthread; |
| 304 | pthread_attr_t attr; |
| 305 | CHECK_PTHREAD_CALL(pthread_attr_init, (&attr), "new thread"); |
| 306 | CHECK_PTHREAD_CALL(pthread_attr_setdetachstate, (&attr, PTHREAD_CREATE_DETACHED), "PTHREAD_CREATE_DETACHED"); |
| 307 | CHECK_PTHREAD_CALL(pthread_attr_setstacksize, (&attr, stack_size), stack_size); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 308 | 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] | 309 | CHECK_PTHREAD_CALL(pthread_attr_destroy, (&attr), "new thread"); |
| 310 | |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 311 | if (pthread_create_result != 0) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 312 | // pthread_create(3) failed, so clean up. |
Brian Carlstrom | 9efc3e0 | 2012-08-17 17:47:17 -0700 | [diff] [blame] | 313 | { |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 314 | MutexLock mu(self, *Locks::runtime_shutdown_lock_); |
| 315 | runtime->EndThreadBirth(); |
| 316 | } |
| 317 | // 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] | 318 | env->DeleteGlobalRef(child_thread->tlsPtr_.jpeer); |
| 319 | child_thread->tlsPtr_.jpeer = nullptr; |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 320 | delete child_thread; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 321 | child_thread = nullptr; |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 322 | // TODO: remove from thread group? |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 323 | env->SetLongField(java_peer, WellKnownClasses::java_lang_Thread_nativePeer, 0); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 324 | { |
Brian Carlstrom | 9efc3e0 | 2012-08-17 17:47:17 -0700 | [diff] [blame] | 325 | std::string msg(StringPrintf("pthread_create (%s stack) failed: %s", |
| 326 | PrettySize(stack_size).c_str(), strerror(pthread_create_result))); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 327 | ScopedObjectAccess soa(env); |
| 328 | soa.Self()->ThrowOutOfMemoryError(msg.c_str()); |
Brian Carlstrom | 9efc3e0 | 2012-08-17 17:47:17 -0700 | [diff] [blame] | 329 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 330 | } |
Carl Shapiro | 61e019d | 2011-07-14 16:53:09 -0700 | [diff] [blame] | 331 | } |
| 332 | |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 333 | void Thread::Init(ThreadList* thread_list, JavaVMExt* java_vm) { |
Elliott Hughes | 462c944 | 2012-03-23 18:47:50 -0700 | [diff] [blame] | 334 | // This function does all the initialization that must be run by the native thread it applies to. |
| 335 | // (When we create a new thread from managed code, we allocate the Thread* in Thread::Create so |
| 336 | // we can handshake with the corresponding native thread when it's ready.) Check this native |
| 337 | // thread hasn't been through here already... |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 338 | CHECK(Thread::Current() == nullptr); |
Elliott Hughes | d8af159 | 2012-04-16 20:40:15 -0700 | [diff] [blame] | 339 | SetUpAlternateSignalStack(); |
Elliott Hughes | 93e74e8 | 2011-09-13 11:07:03 -0700 | [diff] [blame] | 340 | InitCpu(); |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 341 | InitTlsEntryPoints(); |
Dave Allison | b373e09 | 2014-02-20 16:06:36 -0800 | [diff] [blame] | 342 | RemoveSuspendTrigger(); |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 343 | InitCardTable(); |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 344 | InitTid(); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 345 | // Set pthread_self_ ahead of pthread_setspecific, that makes Thread::Current function, this |
| 346 | // avoids pthread_self_ ever being invalid when discovered from Thread::Current(). |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 347 | tlsPtr_.pthread_self = pthread_self(); |
Ian Rogers | 0878d65 | 2013-04-18 17:38:35 -0700 | [diff] [blame] | 348 | CHECK(is_started_); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 349 | CHECK_PTHREAD_CALL(pthread_setspecific, (Thread::pthread_key_self_, this), "attach self"); |
| 350 | DCHECK_EQ(Thread::Current(), this); |
Carl Shapiro | 61e019d | 2011-07-14 16:53:09 -0700 | [diff] [blame] | 351 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 352 | tls32_.thin_lock_thread_id = thread_list->AllocThreadId(this); |
Elliott Hughes | 93e74e8 | 2011-09-13 11:07:03 -0700 | [diff] [blame] | 353 | InitStackHwm(); |
Carl Shapiro | 61e019d | 2011-07-14 16:53:09 -0700 | [diff] [blame] | 354 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 355 | tlsPtr_.jni_env = new JNIEnvExt(this, java_vm); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 356 | thread_list->Register(this); |
Elliott Hughes | 93e74e8 | 2011-09-13 11:07:03 -0700 | [diff] [blame] | 357 | } |
| 358 | |
Mathieu Chartier | 664bebf | 2012-11-12 16:54:11 -0800 | [diff] [blame] | 359 | Thread* Thread::Attach(const char* thread_name, bool as_daemon, jobject thread_group, |
| 360 | bool create_peer) { |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 361 | Thread* self; |
| 362 | Runtime* runtime = Runtime::Current(); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 363 | if (runtime == nullptr) { |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 364 | LOG(ERROR) << "Thread attaching to non-existent runtime: " << thread_name; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 365 | return nullptr; |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 366 | } |
| 367 | { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 368 | MutexLock mu(nullptr, *Locks::runtime_shutdown_lock_); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 369 | if (runtime->IsShuttingDownLocked()) { |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 370 | LOG(ERROR) << "Thread attaching while runtime is shutting down: " << thread_name; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 371 | return nullptr; |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 372 | } else { |
| 373 | Runtime::Current()->StartThreadBirth(); |
| 374 | self = new Thread(as_daemon); |
| 375 | self->Init(runtime->GetThreadList(), runtime->GetJavaVM()); |
| 376 | Runtime::Current()->EndThreadBirth(); |
| 377 | } |
| 378 | } |
Elliott Hughes | 93e74e8 | 2011-09-13 11:07:03 -0700 | [diff] [blame] | 379 | |
Mathieu Chartier | dbe6f46 | 2012-09-25 16:54:50 -0700 | [diff] [blame] | 380 | CHECK_NE(self->GetState(), kRunnable); |
| 381 | self->SetState(kNative); |
Elliott Hughes | 93e74e8 | 2011-09-13 11:07:03 -0700 | [diff] [blame] | 382 | |
Elliott Hughes | cac6cc7 | 2011-11-03 20:31:21 -0700 | [diff] [blame] | 383 | // If we're the main thread, ClassLinker won't be created until after we're attached, |
| 384 | // 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] | 385 | // In the compiler, all threads need this hack, because no-one's going to be getting |
| 386 | // a native peer! |
Mathieu Chartier | 664bebf | 2012-11-12 16:54:11 -0800 | [diff] [blame] | 387 | if (create_peer) { |
Elliott Hughes | 462c944 | 2012-03-23 18:47:50 -0700 | [diff] [blame] | 388 | self->CreatePeer(thread_name, as_daemon, thread_group); |
Elliott Hughes | 06e3ad4 | 2012-02-07 14:51:57 -0800 | [diff] [blame] | 389 | } else { |
| 390 | // 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] | 391 | if (thread_name != nullptr) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 392 | self->tlsPtr_.name->assign(thread_name); |
Elliott Hughes | 22869a9 | 2012-03-27 14:08:24 -0700 | [diff] [blame] | 393 | ::art::SetThreadName(thread_name); |
| 394 | } |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 395 | } |
Elliott Hughes | cac6cc7 | 2011-11-03 20:31:21 -0700 | [diff] [blame] | 396 | |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 397 | return self; |
| 398 | } |
| 399 | |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 400 | void Thread::CreatePeer(const char* name, bool as_daemon, jobject thread_group) { |
| 401 | Runtime* runtime = Runtime::Current(); |
| 402 | CHECK(runtime->IsStarted()); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 403 | JNIEnv* env = tlsPtr_.jni_env; |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 404 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 405 | if (thread_group == nullptr) { |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 406 | thread_group = runtime->GetMainThreadGroup(); |
Elliott Hughes | 462c944 | 2012-03-23 18:47:50 -0700 | [diff] [blame] | 407 | } |
Elliott Hughes | 726079d | 2011-10-07 18:43:44 -0700 | [diff] [blame] | 408 | ScopedLocalRef<jobject> thread_name(env, env->NewStringUTF(name)); |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 409 | jint thread_priority = GetNativePriority(); |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 410 | jboolean thread_is_daemon = as_daemon; |
| 411 | |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 412 | ScopedLocalRef<jobject> peer(env, env->AllocObject(WellKnownClasses::java_lang_Thread)); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 413 | if (peer.get() == nullptr) { |
Mathieu Chartier | dbe6f46 | 2012-09-25 16:54:50 -0700 | [diff] [blame] | 414 | CHECK(IsExceptionPending()); |
| 415 | return; |
Ian Rogers | 5d4bdc2 | 2011-11-02 22:15:43 -0700 | [diff] [blame] | 416 | } |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 417 | { |
| 418 | ScopedObjectAccess soa(this); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 419 | tlsPtr_.opeer = soa.Decode<mirror::Object*>(peer.get()); |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 420 | } |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 421 | env->CallNonvirtualVoidMethod(peer.get(), |
| 422 | WellKnownClasses::java_lang_Thread, |
| 423 | WellKnownClasses::java_lang_Thread_init, |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 424 | thread_group, thread_name.get(), thread_priority, thread_is_daemon); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 425 | AssertNoPendingException(); |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 426 | |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 427 | Thread* self = this; |
| 428 | DCHECK_EQ(self, Thread::Current()); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 429 | env->SetLongField(peer.get(), WellKnownClasses::java_lang_Thread_nativePeer, |
| 430 | reinterpret_cast<jlong>(self)); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 431 | |
| 432 | ScopedObjectAccess soa(self); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 433 | SirtRef<mirror::String> peer_thread_name(soa.Self(), GetThreadName(soa)); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 434 | if (peer_thread_name.get() == nullptr) { |
Brian Carlstrom | 00fae58 | 2011-10-28 01:16:28 -0700 | [diff] [blame] | 435 | // The Thread constructor should have set the Thread.name to a |
| 436 | // non-null value. However, because we can run without code |
| 437 | // available (in the compiler, in tests), we manually assign the |
| 438 | // fields the constructor should have set. |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 439 | if (runtime->IsActiveTransaction()) { |
| 440 | InitPeer<true>(soa, thread_is_daemon, thread_group, thread_name.get(), thread_priority); |
| 441 | } else { |
| 442 | InitPeer<false>(soa, thread_is_daemon, thread_group, thread_name.get(), thread_priority); |
| 443 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 444 | peer_thread_name.reset(GetThreadName(soa)); |
Brian Carlstrom | 00fae58 | 2011-10-28 01:16:28 -0700 | [diff] [blame] | 445 | } |
Elliott Hughes | 225f5a1 | 2012-06-11 11:23:48 -0700 | [diff] [blame] | 446 | // 'thread_name' may have been null, so don't trust 'peer_thread_name' to be non-null. |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 447 | if (peer_thread_name.get() != nullptr) { |
Elliott Hughes | 899e789 | 2012-01-24 14:57:32 -0800 | [diff] [blame] | 448 | SetThreadName(peer_thread_name->ToModifiedUtf8().c_str()); |
Brian Carlstrom | 00fae58 | 2011-10-28 01:16:28 -0700 | [diff] [blame] | 449 | } |
Carl Shapiro | 61e019d | 2011-07-14 16:53:09 -0700 | [diff] [blame] | 450 | } |
| 451 | |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 452 | template<bool kTransactionActive> |
| 453 | void Thread::InitPeer(ScopedObjectAccess& soa, jboolean thread_is_daemon, jobject thread_group, |
| 454 | jobject thread_name, jint thread_priority) { |
| 455 | soa.DecodeField(WellKnownClasses::java_lang_Thread_daemon)-> |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 456 | SetBoolean<kTransactionActive>(tlsPtr_.opeer, thread_is_daemon); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 457 | soa.DecodeField(WellKnownClasses::java_lang_Thread_group)-> |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 458 | SetObject<kTransactionActive>(tlsPtr_.opeer, soa.Decode<mirror::Object*>(thread_group)); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 459 | soa.DecodeField(WellKnownClasses::java_lang_Thread_name)-> |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 460 | SetObject<kTransactionActive>(tlsPtr_.opeer, soa.Decode<mirror::Object*>(thread_name)); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 461 | soa.DecodeField(WellKnownClasses::java_lang_Thread_priority)-> |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 462 | SetInt<kTransactionActive>(tlsPtr_.opeer, thread_priority); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 463 | } |
| 464 | |
Elliott Hughes | 899e789 | 2012-01-24 14:57:32 -0800 | [diff] [blame] | 465 | void Thread::SetThreadName(const char* name) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 466 | tlsPtr_.name->assign(name); |
Elliott Hughes | 899e789 | 2012-01-24 14:57:32 -0800 | [diff] [blame] | 467 | ::art::SetThreadName(name); |
| 468 | Dbg::DdmSendThreadNotification(this, CHUNK_TYPE("THNM")); |
| 469 | } |
| 470 | |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 471 | void Thread::InitStackHwm() { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 472 | void* read_stack_base; |
| 473 | size_t read_stack_size; |
| 474 | GetThreadStack(tlsPtr_.pthread_self, &read_stack_base, &read_stack_size); |
Elliott Hughes | 36ecb78 | 2012-04-17 16:55:45 -0700 | [diff] [blame] | 475 | |
| 476 | // TODO: include this in the thread dumps; potentially useful in SIGQUIT output? |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 477 | VLOG(threads) << StringPrintf("Native stack is at %p (%s)", read_stack_base, |
| 478 | PrettySize(read_stack_size).c_str()); |
Elliott Hughes | e188419 | 2012-04-23 12:38:15 -0700 | [diff] [blame] | 479 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 480 | tlsPtr_.stack_begin = reinterpret_cast<byte*>(read_stack_base); |
| 481 | tlsPtr_.stack_size = read_stack_size; |
Elliott Hughes | 36ecb78 | 2012-04-17 16:55:45 -0700 | [diff] [blame] | 482 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 483 | if (read_stack_size <= kStackOverflowReservedBytes) { |
| 484 | LOG(FATAL) << "Attempt to attach a thread with a too-small stack (" << read_stack_size |
| 485 | << " bytes)"; |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 486 | } |
Elliott Hughes | 449b4bd | 2011-09-09 12:01:38 -0700 | [diff] [blame] | 487 | |
Elliott Hughes | e188419 | 2012-04-23 12:38:15 -0700 | [diff] [blame] | 488 | // TODO: move this into the Linux GetThreadStack implementation. |
| 489 | #if !defined(__APPLE__) |
Elliott Hughes | 36ecb78 | 2012-04-17 16:55:45 -0700 | [diff] [blame] | 490 | // If we're the main thread, check whether we were run with an unlimited stack. In that case, |
| 491 | // glibc will have reported a 2GB stack for our 32-bit process, and our stack overflow detection |
| 492 | // will be broken because we'll die long before we get close to 2GB. |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 493 | bool is_main_thread = (::art::GetTid() == getpid()); |
| 494 | if (is_main_thread) { |
Elliott Hughes | 36ecb78 | 2012-04-17 16:55:45 -0700 | [diff] [blame] | 495 | rlimit stack_limit; |
| 496 | if (getrlimit(RLIMIT_STACK, &stack_limit) == -1) { |
| 497 | PLOG(FATAL) << "getrlimit(RLIMIT_STACK) failed"; |
| 498 | } |
| 499 | if (stack_limit.rlim_cur == RLIM_INFINITY) { |
| 500 | // Find the default stack size for new threads... |
| 501 | pthread_attr_t default_attributes; |
| 502 | size_t default_stack_size; |
| 503 | CHECK_PTHREAD_CALL(pthread_attr_init, (&default_attributes), "default stack size query"); |
| 504 | CHECK_PTHREAD_CALL(pthread_attr_getstacksize, (&default_attributes, &default_stack_size), |
| 505 | "default stack size query"); |
| 506 | CHECK_PTHREAD_CALL(pthread_attr_destroy, (&default_attributes), "default stack size query"); |
| 507 | |
| 508 | // ...and use that as our limit. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 509 | size_t old_stack_size = read_stack_size; |
| 510 | tlsPtr_.stack_size = default_stack_size; |
| 511 | tlsPtr_.stack_begin += (old_stack_size - default_stack_size); |
Elliott Hughes | faf4ba0 | 2012-05-02 16:12:19 -0700 | [diff] [blame] | 512 | VLOG(threads) << "Limiting unlimited stack (reported as " << PrettySize(old_stack_size) << ")" |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 513 | << " to " << PrettySize(default_stack_size) |
| 514 | << " with base " << reinterpret_cast<void*>(tlsPtr_.stack_begin); |
Elliott Hughes | 36ecb78 | 2012-04-17 16:55:45 -0700 | [diff] [blame] | 515 | } |
| 516 | } |
Elliott Hughes | e188419 | 2012-04-23 12:38:15 -0700 | [diff] [blame] | 517 | #endif |
Elliott Hughes | 36ecb78 | 2012-04-17 16:55:45 -0700 | [diff] [blame] | 518 | |
Ian Rogers | 932746a | 2011-09-22 18:57:50 -0700 | [diff] [blame] | 519 | // Set stack_end_ to the bottom of the stack saving space of stack overflows |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 520 | bool implicit_stack_check = !Runtime::Current()->ExplicitStackOverflowChecks(); |
| 521 | ResetDefaultStackEnd(implicit_stack_check); |
| 522 | |
| 523 | // Install the protected region if we are doing implicit overflow checks. |
| 524 | if (implicit_stack_check) { |
| 525 | if (is_main_thread) { |
| 526 | // The main thread has a 16K protected region at the bottom. We need |
| 527 | // to install our own region so we need to move the limits |
| 528 | // of the stack to make room for it. |
| 529 | constexpr uint32_t kDelta = 16 * KB; |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 530 | tlsPtr_.stack_begin += kDelta; |
| 531 | tlsPtr_.stack_end += kDelta; |
| 532 | tlsPtr_.stack_size -= kDelta; |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 533 | } |
| 534 | InstallImplicitProtection(is_main_thread); |
| 535 | } |
Elliott Hughes | 449b4bd | 2011-09-09 12:01:38 -0700 | [diff] [blame] | 536 | |
| 537 | // Sanity check. |
| 538 | int stack_variable; |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 539 | CHECK_GT(&stack_variable, reinterpret_cast<void*>(tlsPtr_.stack_end)); |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 540 | } |
| 541 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 542 | void Thread::ShortDump(std::ostream& os) const { |
| 543 | os << "Thread["; |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 544 | if (GetThreadId() != 0) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 545 | // 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] | 546 | os << GetThreadId() |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 547 | << ",tid=" << GetTid() << ','; |
Elliott Hughes | e091855 | 2011-10-28 17:18:29 -0700 | [diff] [blame] | 548 | } |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 549 | os << GetState() |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 550 | << ",Thread*=" << this |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 551 | << ",peer=" << tlsPtr_.opeer |
| 552 | << ",\"" << *tlsPtr_.name << "\"" |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 553 | << "]"; |
Elliott Hughes | a095764 | 2011-09-02 14:27:33 -0700 | [diff] [blame] | 554 | } |
| 555 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 556 | void Thread::Dump(std::ostream& os) const { |
| 557 | DumpState(os); |
| 558 | DumpStack(os); |
| 559 | } |
| 560 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 561 | mirror::String* Thread::GetThreadName(const ScopedObjectAccessUnchecked& soa) const { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 562 | mirror::ArtField* f = soa.DecodeField(WellKnownClasses::java_lang_Thread_name); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 563 | 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] | 564 | } |
| 565 | |
Elliott Hughes | ffb465f | 2012-03-01 18:46:05 -0800 | [diff] [blame] | 566 | void Thread::GetThreadName(std::string& name) const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 567 | name.assign(*tlsPtr_.name); |
Elliott Hughes | ffb465f | 2012-03-01 18:46:05 -0800 | [diff] [blame] | 568 | } |
| 569 | |
Jeff Hao | 57dac6e | 2013-08-15 16:36:24 -0700 | [diff] [blame] | 570 | uint64_t Thread::GetCpuMicroTime() const { |
| 571 | #if defined(HAVE_POSIX_CLOCKS) |
| 572 | clockid_t cpu_clock_id; |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 573 | pthread_getcpuclockid(tlsPtr_.pthread_self, &cpu_clock_id); |
Jeff Hao | 57dac6e | 2013-08-15 16:36:24 -0700 | [diff] [blame] | 574 | timespec now; |
| 575 | clock_gettime(cpu_clock_id, &now); |
Ian Rogers | 0f67847 | 2014-03-10 16:18:37 -0700 | [diff] [blame] | 576 | return static_cast<uint64_t>(now.tv_sec) * UINT64_C(1000000) + now.tv_nsec / UINT64_C(1000); |
Jeff Hao | 57dac6e | 2013-08-15 16:36:24 -0700 | [diff] [blame] | 577 | #else |
| 578 | UNIMPLEMENTED(WARNING); |
| 579 | return -1; |
| 580 | #endif |
| 581 | } |
| 582 | |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 583 | void Thread::AtomicSetFlag(ThreadFlag flag) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 584 | android_atomic_or(flag, &tls32_.state_and_flags.as_int); |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 585 | } |
| 586 | |
| 587 | void Thread::AtomicClearFlag(ThreadFlag flag) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 588 | android_atomic_and(-1 ^ flag, &tls32_.state_and_flags.as_int); |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 589 | } |
| 590 | |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 591 | // Attempt to rectify locks so that we dump thread list with required locks before exiting. |
| 592 | static void UnsafeLogFatalForSuspendCount(Thread* self, Thread* thread) NO_THREAD_SAFETY_ANALYSIS { |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 593 | LOG(ERROR) << *thread << " suspend count already zero."; |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 594 | Locks::thread_suspend_count_lock_->Unlock(self); |
| 595 | if (!Locks::mutator_lock_->IsSharedHeld(self)) { |
| 596 | Locks::mutator_lock_->SharedTryLock(self); |
| 597 | if (!Locks::mutator_lock_->IsSharedHeld(self)) { |
| 598 | LOG(WARNING) << "Dumping thread list without holding mutator_lock_"; |
| 599 | } |
| 600 | } |
| 601 | if (!Locks::thread_list_lock_->IsExclusiveHeld(self)) { |
| 602 | Locks::thread_list_lock_->TryLock(self); |
| 603 | if (!Locks::thread_list_lock_->IsExclusiveHeld(self)) { |
| 604 | LOG(WARNING) << "Dumping thread list without holding thread_list_lock_"; |
| 605 | } |
| 606 | } |
| 607 | std::ostringstream ss; |
| 608 | Runtime::Current()->GetThreadList()->DumpLocked(ss); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 609 | LOG(FATAL) << ss.str(); |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 610 | } |
| 611 | |
| 612 | void Thread::ModifySuspendCount(Thread* self, int delta, bool for_debugger) { |
Ian Rogers | 2966e13 | 2014-04-02 08:34:36 -0700 | [diff] [blame] | 613 | if (kIsDebugBuild) { |
| 614 | DCHECK(delta == -1 || delta == +1 || delta == -tls32_.debug_suspend_count) |
| 615 | << delta << " " << tls32_.debug_suspend_count << " " << this; |
| 616 | DCHECK_GE(tls32_.suspend_count, tls32_.debug_suspend_count) << this; |
| 617 | Locks::thread_suspend_count_lock_->AssertHeld(self); |
| 618 | if (this != self && !IsSuspended()) { |
| 619 | Locks::thread_list_lock_->AssertHeld(self); |
| 620 | } |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 621 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 622 | if (UNLIKELY(delta < 0 && tls32_.suspend_count <= 0)) { |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 623 | UnsafeLogFatalForSuspendCount(self, this); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 624 | return; |
| 625 | } |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 626 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 627 | tls32_.suspend_count += delta; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 628 | if (for_debugger) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 629 | tls32_.debug_suspend_count += delta; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 630 | } |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 631 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 632 | if (tls32_.suspend_count == 0) { |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 633 | AtomicClearFlag(kSuspendRequest); |
| 634 | } else { |
| 635 | AtomicSetFlag(kSuspendRequest); |
Dave Allison | b373e09 | 2014-02-20 16:06:36 -0800 | [diff] [blame] | 636 | TriggerSuspend(); |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 637 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 638 | } |
| 639 | |
Mathieu Chartier | 752a0e6 | 2013-06-27 11:03:27 -0700 | [diff] [blame] | 640 | void Thread::RunCheckpointFunction() { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 641 | Closure *checkpoints[kMaxCheckpoints]; |
| 642 | |
| 643 | // Grab the suspend_count lock and copy the current set of |
| 644 | // checkpoints. Then clear the list and the flag. The RequestCheckpoint |
| 645 | // function will also grab this lock so we prevent a race between setting |
| 646 | // the kCheckpointRequest flag and clearing it. |
| 647 | { |
| 648 | MutexLock mu(this, *Locks::thread_suspend_count_lock_); |
| 649 | for (uint32_t i = 0; i < kMaxCheckpoints; ++i) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 650 | checkpoints[i] = tlsPtr_.checkpoint_functions[i]; |
| 651 | tlsPtr_.checkpoint_functions[i] = nullptr; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 652 | } |
| 653 | AtomicClearFlag(kCheckpointRequest); |
| 654 | } |
| 655 | |
| 656 | // Outside the lock, run all the checkpoint functions that |
| 657 | // we collected. |
| 658 | bool found_checkpoint = false; |
| 659 | for (uint32_t i = 0; i < kMaxCheckpoints; ++i) { |
| 660 | if (checkpoints[i] != nullptr) { |
| 661 | ATRACE_BEGIN("Checkpoint function"); |
| 662 | checkpoints[i]->Run(this); |
| 663 | ATRACE_END(); |
| 664 | found_checkpoint = true; |
| 665 | } |
| 666 | } |
| 667 | CHECK(found_checkpoint); |
Mathieu Chartier | 752a0e6 | 2013-06-27 11:03:27 -0700 | [diff] [blame] | 668 | } |
| 669 | |
Mathieu Chartier | 0e4627e | 2012-10-23 16:13:36 -0700 | [diff] [blame] | 670 | bool Thread::RequestCheckpoint(Closure* function) { |
Chris Dearman | 59cde53 | 2013-12-04 18:53:49 -0800 | [diff] [blame] | 671 | union StateAndFlags old_state_and_flags; |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 672 | old_state_and_flags.as_int = tls32_.state_and_flags.as_int; |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 673 | if (old_state_and_flags.as_struct.state != kRunnable) { |
| 674 | return false; // Fail, thread is suspended and so can't run a checkpoint. |
| 675 | } |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 676 | |
| 677 | uint32_t available_checkpoint = kMaxCheckpoints; |
| 678 | for (uint32_t i = 0 ; i < kMaxCheckpoints; ++i) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 679 | if (tlsPtr_.checkpoint_functions[i] == nullptr) { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 680 | available_checkpoint = i; |
| 681 | break; |
| 682 | } |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 683 | } |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 684 | if (available_checkpoint == kMaxCheckpoints) { |
| 685 | // No checkpoint functions available, we can't run a checkpoint |
| 686 | return false; |
| 687 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 688 | tlsPtr_.checkpoint_functions[available_checkpoint] = function; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 689 | |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 690 | // Checkpoint function installed now install flag bit. |
Mathieu Chartier | 858f1c5 | 2012-10-17 17:45:55 -0700 | [diff] [blame] | 691 | // We must be runnable to request a checkpoint. |
Mathieu Chartier | 5f51d4b | 2013-12-03 14:24:05 -0800 | [diff] [blame] | 692 | DCHECK_EQ(old_state_and_flags.as_struct.state, kRunnable); |
Chris Dearman | 59cde53 | 2013-12-04 18:53:49 -0800 | [diff] [blame] | 693 | union StateAndFlags new_state_and_flags; |
| 694 | new_state_and_flags.as_int = old_state_and_flags.as_int; |
Mathieu Chartier | 858f1c5 | 2012-10-17 17:45:55 -0700 | [diff] [blame] | 695 | new_state_and_flags.as_struct.flags |= kCheckpointRequest; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 696 | int succeeded = android_atomic_acquire_cas(old_state_and_flags.as_int, new_state_and_flags.as_int, |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 697 | &tls32_.state_and_flags.as_int); |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 698 | if (UNLIKELY(succeeded != 0)) { |
| 699 | // The thread changed state before the checkpoint was installed. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 700 | CHECK_EQ(tlsPtr_.checkpoint_functions[available_checkpoint], function); |
| 701 | tlsPtr_.checkpoint_functions[available_checkpoint] = nullptr; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 702 | } else { |
| 703 | CHECK_EQ(ReadFlag(kCheckpointRequest), true); |
Dave Allison | b373e09 | 2014-02-20 16:06:36 -0800 | [diff] [blame] | 704 | TriggerSuspend(); |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 705 | } |
Mathieu Chartier | 858f1c5 | 2012-10-17 17:45:55 -0700 | [diff] [blame] | 706 | return succeeded == 0; |
| 707 | } |
| 708 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 709 | void Thread::FullSuspendCheck() { |
| 710 | VLOG(threads) << this << " self-suspending"; |
Mathieu Chartier | 752a0e6 | 2013-06-27 11:03:27 -0700 | [diff] [blame] | 711 | ATRACE_BEGIN("Full suspend check"); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 712 | // Make thread appear suspended to other threads, release mutator_lock_. |
| 713 | TransitionFromRunnableToSuspended(kSuspended); |
| 714 | // Transition back to runnable noting requests to suspend, re-acquire share on mutator_lock_. |
| 715 | TransitionFromSuspendedToRunnable(); |
Mathieu Chartier | 752a0e6 | 2013-06-27 11:03:27 -0700 | [diff] [blame] | 716 | ATRACE_END(); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 717 | VLOG(threads) << this << " self-reviving"; |
| 718 | } |
| 719 | |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 720 | void Thread::DumpState(std::ostream& os, const Thread* thread, pid_t tid) { |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 721 | std::string group_name; |
| 722 | int priority; |
| 723 | bool is_daemon = false; |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 724 | Thread* self = Thread::Current(); |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 725 | |
Mathieu Chartier | c7a966d | 2014-04-10 18:06:32 -0700 | [diff] [blame] | 726 | // Don't do this if we are aborting since the GC may have all the threads suspended. This will |
| 727 | // cause ScopedObjectAccessUnchecked to deadlock. |
| 728 | if (gAborting == 0 && self != nullptr && thread != nullptr && thread->tlsPtr_.opeer != nullptr) { |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 729 | ScopedObjectAccessUnchecked soa(self); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 730 | priority = soa.DecodeField(WellKnownClasses::java_lang_Thread_priority) |
| 731 | ->GetInt(thread->tlsPtr_.opeer); |
| 732 | is_daemon = soa.DecodeField(WellKnownClasses::java_lang_Thread_daemon) |
| 733 | ->GetBoolean(thread->tlsPtr_.opeer); |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 734 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 735 | mirror::Object* thread_group = |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 736 | soa.DecodeField(WellKnownClasses::java_lang_Thread_group)->GetObject(thread->tlsPtr_.opeer); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 737 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 738 | if (thread_group != nullptr) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 739 | mirror::ArtField* group_name_field = |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 740 | soa.DecodeField(WellKnownClasses::java_lang_ThreadGroup_name); |
| 741 | mirror::String* group_name_string = |
| 742 | reinterpret_cast<mirror::String*>(group_name_field->GetObject(thread_group)); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 743 | group_name = (group_name_string != nullptr) ? group_name_string->ToModifiedUtf8() : "<null>"; |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 744 | } |
| 745 | } else { |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 746 | priority = GetNativePriority(); |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 747 | } |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 748 | |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 749 | std::string scheduler_group_name(GetSchedulerGroupName(tid)); |
Elliott Hughes | 1bac54f | 2012-03-16 12:48:31 -0700 | [diff] [blame] | 750 | if (scheduler_group_name.empty()) { |
| 751 | scheduler_group_name = "default"; |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 752 | } |
| 753 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 754 | if (thread != nullptr) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 755 | os << '"' << *thread->tlsPtr_.name << '"'; |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 756 | if (is_daemon) { |
| 757 | os << " daemon"; |
| 758 | } |
| 759 | os << " prio=" << priority |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 760 | << " tid=" << thread->GetThreadId() |
Elliott Hughes | 80537bb | 2013-01-04 16:37:26 -0800 | [diff] [blame] | 761 | << " " << thread->GetState(); |
| 762 | if (thread->IsStillStarting()) { |
| 763 | os << " (still starting up)"; |
| 764 | } |
| 765 | os << "\n"; |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 766 | } else { |
Elliott Hughes | 289be85 | 2012-06-12 13:57:20 -0700 | [diff] [blame] | 767 | os << '"' << ::art::GetThreadName(tid) << '"' |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 768 | << " prio=" << priority |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 769 | << " (not attached)\n"; |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 770 | } |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 771 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 772 | if (thread != nullptr) { |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 773 | MutexLock mu(self, *Locks::thread_suspend_count_lock_); |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 774 | os << " | group=\"" << group_name << "\"" |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 775 | << " sCount=" << thread->tls32_.suspend_count |
| 776 | << " dsCount=" << thread->tls32_.debug_suspend_count |
| 777 | << " obj=" << reinterpret_cast<void*>(thread->tlsPtr_.opeer) |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 778 | << " self=" << reinterpret_cast<const void*>(thread) << "\n"; |
| 779 | } |
Elliott Hughes | 0d39c12 | 2012-06-06 16:41:17 -0700 | [diff] [blame] | 780 | |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 781 | os << " | sysTid=" << tid |
| 782 | << " nice=" << getpriority(PRIO_PROCESS, tid) |
Elliott Hughes | 0d39c12 | 2012-06-06 16:41:17 -0700 | [diff] [blame] | 783 | << " cgrp=" << scheduler_group_name; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 784 | if (thread != nullptr) { |
Elliott Hughes | 0d39c12 | 2012-06-06 16:41:17 -0700 | [diff] [blame] | 785 | int policy; |
| 786 | sched_param sp; |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 787 | CHECK_PTHREAD_CALL(pthread_getschedparam, (thread->tlsPtr_.pthread_self, &policy, &sp), |
| 788 | __FUNCTION__); |
Elliott Hughes | 0d39c12 | 2012-06-06 16:41:17 -0700 | [diff] [blame] | 789 | os << " sched=" << policy << "/" << sp.sched_priority |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 790 | << " handle=" << reinterpret_cast<void*>(thread->tlsPtr_.pthread_self); |
Elliott Hughes | 0d39c12 | 2012-06-06 16:41:17 -0700 | [diff] [blame] | 791 | } |
| 792 | os << "\n"; |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 793 | |
| 794 | // Grab the scheduler stats for this thread. |
| 795 | std::string scheduler_stats; |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 796 | if (ReadFileToString(StringPrintf("/proc/self/task/%d/schedstat", tid), &scheduler_stats)) { |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 797 | scheduler_stats.resize(scheduler_stats.size() - 1); // Lose the trailing '\n'. |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 798 | } else { |
| 799 | scheduler_stats = "0 0 0"; |
| 800 | } |
| 801 | |
Elliott Hughes | ba0b9c5 | 2012-09-20 11:25:12 -0700 | [diff] [blame] | 802 | char native_thread_state = '?'; |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 803 | int utime = 0; |
| 804 | int stime = 0; |
| 805 | int task_cpu = 0; |
Brian Carlstrom | 2921201 | 2013-09-12 22:18:30 -0700 | [diff] [blame] | 806 | GetTaskStats(tid, &native_thread_state, &utime, &stime, &task_cpu); |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 807 | |
Elliott Hughes | ba0b9c5 | 2012-09-20 11:25:12 -0700 | [diff] [blame] | 808 | os << " | state=" << native_thread_state |
| 809 | << " schedstat=( " << scheduler_stats << " )" |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 810 | << " utm=" << utime |
| 811 | << " stm=" << stime |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 812 | << " core=" << task_cpu |
| 813 | << " HZ=" << sysconf(_SC_CLK_TCK) << "\n"; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 814 | if (thread != nullptr) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 815 | os << " | stack=" << reinterpret_cast<void*>(thread->tlsPtr_.stack_begin) << "-" |
| 816 | << reinterpret_cast<void*>(thread->tlsPtr_.stack_end) << " stackSize=" |
| 817 | << PrettySize(thread->tlsPtr_.stack_size) << "\n"; |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 818 | } |
| 819 | } |
| 820 | |
| 821 | void Thread::DumpState(std::ostream& os) const { |
| 822 | Thread::DumpState(os, this, GetTid()); |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 823 | } |
| 824 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 825 | struct StackDumpVisitor : public StackVisitor { |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 826 | StackDumpVisitor(std::ostream& os, Thread* thread, Context* context, bool can_allocate) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 827 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 828 | : StackVisitor(thread, context), os(os), thread(thread), can_allocate(can_allocate), |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 829 | last_method(nullptr), last_line_number(0), repetition_count(0), frame_count(0) { |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 830 | } |
| 831 | |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 832 | virtual ~StackDumpVisitor() { |
Elliott Hughes | e85d2e9 | 2012-05-01 14:02:10 -0700 | [diff] [blame] | 833 | if (frame_count == 0) { |
| 834 | os << " (no managed stack frames)\n"; |
| 835 | } |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 836 | } |
| 837 | |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 838 | bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 839 | mirror::ArtMethod* m = GetMethod(); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 840 | if (m->IsRuntimeMethod()) { |
Elliott Hughes | 530fa00 | 2012-03-12 11:44:49 -0700 | [diff] [blame] | 841 | return true; |
Ian Rogers | 9086572 | 2011-09-19 11:11:44 -0700 | [diff] [blame] | 842 | } |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 843 | const int kMaxRepetition = 3; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 844 | mirror::Class* c = m->GetDeclaringClass(); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 845 | mirror::DexCache* dex_cache = c->GetDexCache(); |
Ian Rogers | b861dc0 | 2011-11-14 17:00:05 -0800 | [diff] [blame] | 846 | int line_number = -1; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 847 | if (dex_cache != nullptr) { // be tolerant of bad input |
Ian Rogers | 4445a7e | 2012-10-05 17:19:13 -0700 | [diff] [blame] | 848 | const DexFile& dex_file = *dex_cache->GetDexFile(); |
Mathieu Chartier | c751fdc | 2014-03-30 15:25:44 -0700 | [diff] [blame] | 849 | line_number = dex_file.GetLineNumFromPC(m, GetDexPc(false)); |
Ian Rogers | b861dc0 | 2011-11-14 17:00:05 -0800 | [diff] [blame] | 850 | } |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 851 | if (line_number == last_line_number && last_method == m) { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 852 | ++repetition_count; |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 853 | } else { |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 854 | if (repetition_count >= kMaxRepetition) { |
| 855 | os << " ... repeated " << (repetition_count - kMaxRepetition) << " times\n"; |
| 856 | } |
| 857 | repetition_count = 0; |
| 858 | last_line_number = line_number; |
| 859 | last_method = m; |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 860 | } |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 861 | if (repetition_count < kMaxRepetition) { |
| 862 | os << " at " << PrettyMethod(m, false); |
| 863 | if (m->IsNative()) { |
| 864 | os << "(Native method)"; |
| 865 | } else { |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 866 | mh.ChangeMethod(m); |
| 867 | const char* source_file(mh.GetDeclaringClassSourceFile()); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 868 | os << "(" << (source_file != nullptr ? source_file : "unavailable") |
Brian Carlstrom | 2e450bf | 2013-09-06 15:39:46 -0700 | [diff] [blame] | 869 | << ":" << line_number << ")"; |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 870 | } |
| 871 | os << "\n"; |
Elliott Hughes | 08fc03a | 2012-06-26 17:34:00 -0700 | [diff] [blame] | 872 | if (frame_count == 0) { |
| 873 | Monitor::DescribeWait(os, thread); |
| 874 | } |
| 875 | if (can_allocate) { |
Elliott Hughes | 4993bbc | 2013-01-10 15:41:25 -0800 | [diff] [blame] | 876 | Monitor::VisitLocks(this, DumpLockedObject, &os); |
Elliott Hughes | 08fc03a | 2012-06-26 17:34:00 -0700 | [diff] [blame] | 877 | } |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 878 | } |
Elliott Hughes | 8e4aac5 | 2011-09-26 17:03:36 -0700 | [diff] [blame] | 879 | |
Elliott Hughes | 08fc03a | 2012-06-26 17:34:00 -0700 | [diff] [blame] | 880 | ++frame_count; |
Elliott Hughes | 530fa00 | 2012-03-12 11:44:49 -0700 | [diff] [blame] | 881 | return true; |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 882 | } |
Elliott Hughes | 4993bbc | 2013-01-10 15:41:25 -0800 | [diff] [blame] | 883 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 884 | static void DumpLockedObject(mirror::Object* o, void* context) |
Elliott Hughes | 4993bbc | 2013-01-10 15:41:25 -0800 | [diff] [blame] | 885 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 886 | std::ostream& os = *reinterpret_cast<std::ostream*>(context); |
Ian Rogers | d803bc7 | 2014-04-01 15:33:03 -0700 | [diff] [blame] | 887 | os << " - locked "; |
| 888 | if (o == nullptr) { |
| 889 | os << "an unknown object"; |
| 890 | } else { |
Mathieu Chartier | 4d7f61d | 2014-04-17 14:43:39 -0700 | [diff] [blame] | 891 | if ((o->GetLockWord(false).GetState() == LockWord::kThinLocked) && |
Ian Rogers | d803bc7 | 2014-04-01 15:33:03 -0700 | [diff] [blame] | 892 | Locks::mutator_lock_->IsExclusiveHeld(Thread::Current())) { |
| 893 | // Getting the identity hashcode here would result in lock inflation and suspension of the |
| 894 | // current thread, which isn't safe if this is the only runnable thread. |
| 895 | os << StringPrintf("<@addr=0x%" PRIxPTR "> (a %s)", reinterpret_cast<intptr_t>(o), |
| 896 | PrettyTypeOf(o).c_str()); |
| 897 | } else { |
| 898 | os << StringPrintf("<0x%08x> (a %s)", o->IdentityHashCode(), PrettyTypeOf(o).c_str()); |
| 899 | } |
| 900 | } |
| 901 | os << "\n"; |
Elliott Hughes | 4993bbc | 2013-01-10 15:41:25 -0800 | [diff] [blame] | 902 | } |
| 903 | |
Elliott Hughes | 08fc03a | 2012-06-26 17:34:00 -0700 | [diff] [blame] | 904 | std::ostream& os; |
| 905 | const Thread* thread; |
Ian Rogers | 0878d65 | 2013-04-18 17:38:35 -0700 | [diff] [blame] | 906 | const bool can_allocate; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 907 | MethodHelper mh; |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 908 | mirror::ArtMethod* last_method; |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 909 | int last_line_number; |
| 910 | int repetition_count; |
Elliott Hughes | 8e4aac5 | 2011-09-26 17:03:36 -0700 | [diff] [blame] | 911 | int frame_count; |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 912 | }; |
| 913 | |
Ian Rogers | 33e9566 | 2013-05-20 20:29:14 -0700 | [diff] [blame] | 914 | static bool ShouldShowNativeStack(const Thread* thread) |
| 915 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Elliott Hughes | aef701d | 2013-04-05 18:15:40 -0700 | [diff] [blame] | 916 | ThreadState state = thread->GetState(); |
| 917 | |
| 918 | // In native code somewhere in the VM (one of the kWaitingFor* states)? That's interesting. |
| 919 | if (state > kWaiting && state < kStarting) { |
| 920 | return true; |
| 921 | } |
| 922 | |
| 923 | // In an Object.wait variant or Thread.sleep? That's not interesting. |
| 924 | if (state == kTimedWaiting || state == kSleeping || state == kWaiting) { |
| 925 | return false; |
| 926 | } |
| 927 | |
| 928 | // In some other native method? That's interesting. |
| 929 | // We don't just check kNative because native methods will be in state kSuspended if they're |
| 930 | // calling back into the VM, or kBlocked if they're blocked on a monitor, or one of the |
| 931 | // 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] | 932 | mirror::ArtMethod* current_method = thread->GetCurrentMethod(nullptr); |
| 933 | return current_method != nullptr && current_method->IsNative(); |
Elliott Hughes | aef701d | 2013-04-05 18:15:40 -0700 | [diff] [blame] | 934 | } |
| 935 | |
Mathieu Chartier | c751fdc | 2014-03-30 15:25:44 -0700 | [diff] [blame] | 936 | void Thread::DumpJavaStack(std::ostream& os) const { |
| 937 | UniquePtr<Context> context(Context::Create()); |
| 938 | StackDumpVisitor dumper(os, const_cast<Thread*>(this), context.get(), |
| 939 | !tls32_.throwing_OutOfMemoryError); |
| 940 | dumper.WalkStack(); |
| 941 | } |
| 942 | |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 943 | void Thread::DumpStack(std::ostream& os) const { |
Jeff Hao | ed1790e | 2013-04-12 09:58:14 -0700 | [diff] [blame] | 944 | // TODO: we call this code when dying but may not have suspended the thread ourself. The |
| 945 | // IsSuspended check is therefore racy with the use for dumping (normally we inhibit |
| 946 | // the race with the thread_suspend_count_lock_). |
Ian Rogers | 6553049 | 2013-08-19 08:54:22 -0700 | [diff] [blame] | 947 | // No point dumping for an abort in debug builds where we'll hit the not suspended check in stack. |
| 948 | bool dump_for_abort = (gAborting > 0) && !kIsDebugBuild; |
Ian Rogers | d090cf4 | 2013-06-06 15:35:18 -0700 | [diff] [blame] | 949 | if (this == Thread::Current() || IsSuspended() || dump_for_abort) { |
Ian Rogers | f08e473 | 2013-04-09 09:45:49 -0700 | [diff] [blame] | 950 | // 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] | 951 | if (dump_for_abort || ShouldShowNativeStack(this)) { |
Ian Rogers | f08e473 | 2013-04-09 09:45:49 -0700 | [diff] [blame] | 952 | DumpKernelStack(os, GetTid(), " kernel: ", false); |
Kenny Root | 067d20f | 2014-03-05 14:57:21 -0800 | [diff] [blame] | 953 | SirtRef<mirror::ArtMethod> method_ref(Thread::Current(), GetCurrentMethod(nullptr)); |
Christopher Ferris | a2cee18 | 2014-04-16 19:13:59 -0700 | [diff] [blame] | 954 | DumpNativeStack(os, GetTid(), " native: ", method_ref.get()); |
Ian Rogers | f08e473 | 2013-04-09 09:45:49 -0700 | [diff] [blame] | 955 | } |
Mathieu Chartier | c751fdc | 2014-03-30 15:25:44 -0700 | [diff] [blame] | 956 | DumpJavaStack(os); |
Ian Rogers | f08e473 | 2013-04-09 09:45:49 -0700 | [diff] [blame] | 957 | } else { |
| 958 | os << "Not able to dump stack of thread that isn't suspended"; |
Elliott Hughes | ffb465f | 2012-03-01 18:46:05 -0800 | [diff] [blame] | 959 | } |
Elliott Hughes | e27955c | 2011-08-26 15:21:24 -0700 | [diff] [blame] | 960 | } |
| 961 | |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 962 | void Thread::ThreadExitCallback(void* arg) { |
| 963 | Thread* self = reinterpret_cast<Thread*>(arg); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 964 | if (self->tls32_.thread_exit_check_count == 0) { |
| 965 | LOG(WARNING) << "Native thread exiting without having called DetachCurrentThread (maybe it's " |
| 966 | "going to use a pthread_key_create destructor?): " << *self; |
Ian Rogers | 0878d65 | 2013-04-18 17:38:35 -0700 | [diff] [blame] | 967 | CHECK(is_started_); |
Elliott Hughes | 6a607ad | 2012-07-13 20:40:00 -0700 | [diff] [blame] | 968 | CHECK_PTHREAD_CALL(pthread_setspecific, (Thread::pthread_key_self_, self), "reattach self"); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 969 | self->tls32_.thread_exit_check_count = 1; |
Elliott Hughes | 6a607ad | 2012-07-13 20:40:00 -0700 | [diff] [blame] | 970 | } else { |
| 971 | LOG(FATAL) << "Native thread exited without calling DetachCurrentThread: " << *self; |
| 972 | } |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 973 | } |
| 974 | |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 975 | void Thread::Startup() { |
Ian Rogers | 0878d65 | 2013-04-18 17:38:35 -0700 | [diff] [blame] | 976 | CHECK(!is_started_); |
| 977 | is_started_ = true; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 978 | { |
Brian Carlstrom | 6d69f59 | 2013-07-16 17:18:16 -0700 | [diff] [blame] | 979 | // MutexLock to keep annotalysis happy. |
| 980 | // |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 981 | // Note we use nullptr for the thread because Thread::Current can |
Brian Carlstrom | 6d69f59 | 2013-07-16 17:18:16 -0700 | [diff] [blame] | 982 | // return garbage since (is_started_ == true) and |
| 983 | // Thread::pthread_key_self_ is not yet initialized. |
| 984 | // This was seen on glibc. |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 985 | MutexLock mu(nullptr, *Locks::thread_suspend_count_lock_); |
Ian Rogers | c604d73 | 2012-10-14 16:09:54 -0700 | [diff] [blame] | 986 | resume_cond_ = new ConditionVariable("Thread resumption condition variable", |
| 987 | *Locks::thread_suspend_count_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 988 | } |
| 989 | |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 990 | // Allocate a TLS slot. |
Elliott Hughes | 8d768a9 | 2011-09-14 16:35:25 -0700 | [diff] [blame] | 991 | CHECK_PTHREAD_CALL(pthread_key_create, (&Thread::pthread_key_self_, Thread::ThreadExitCallback), "self key"); |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 992 | |
| 993 | // Double-check the TLS slot allocation. |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 994 | if (pthread_getspecific(pthread_key_self_) != nullptr) { |
| 995 | LOG(FATAL) << "Newly-created pthread TLS slot is not nullptr"; |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 996 | } |
Elliott Hughes | 038a806 | 2011-09-18 14:12:41 -0700 | [diff] [blame] | 997 | } |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 998 | |
Elliott Hughes | 038a806 | 2011-09-18 14:12:41 -0700 | [diff] [blame] | 999 | void Thread::FinishStartup() { |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1000 | Runtime* runtime = Runtime::Current(); |
| 1001 | CHECK(runtime->IsStarted()); |
Brian Carlstrom | b82b687 | 2011-10-26 17:18:07 -0700 | [diff] [blame] | 1002 | |
Elliott Hughes | 01158d7 | 2011-09-19 19:47:10 -0700 | [diff] [blame] | 1003 | // Finish attaching the main thread. |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1004 | ScopedObjectAccess soa(Thread::Current()); |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1005 | Thread::Current()->CreatePeer("main", false, runtime->GetMainThreadGroup()); |
Jesse Wilson | 9a6bae8 | 2011-11-14 14:57:30 -0500 | [diff] [blame] | 1006 | |
Elliott Hughes | af8d15a | 2012-05-29 09:12:18 -0700 | [diff] [blame] | 1007 | Runtime::Current()->GetClassLinker()->RunRootClinits(); |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 1008 | } |
| 1009 | |
Elliott Hughes | c1674ed | 2011-08-25 18:09:09 -0700 | [diff] [blame] | 1010 | void Thread::Shutdown() { |
Ian Rogers | 0878d65 | 2013-04-18 17:38:35 -0700 | [diff] [blame] | 1011 | CHECK(is_started_); |
| 1012 | is_started_ = false; |
Elliott Hughes | 8d768a9 | 2011-09-14 16:35:25 -0700 | [diff] [blame] | 1013 | CHECK_PTHREAD_CALL(pthread_key_delete, (Thread::pthread_key_self_), "self key"); |
Ian Rogers | 33e9566 | 2013-05-20 20:29:14 -0700 | [diff] [blame] | 1014 | MutexLock mu(Thread::Current(), *Locks::thread_suspend_count_lock_); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1015 | if (resume_cond_ != nullptr) { |
Ian Rogers | 0878d65 | 2013-04-18 17:38:35 -0700 | [diff] [blame] | 1016 | delete resume_cond_; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1017 | resume_cond_ = nullptr; |
Ian Rogers | 0878d65 | 2013-04-18 17:38:35 -0700 | [diff] [blame] | 1018 | } |
Elliott Hughes | c1674ed | 2011-08-25 18:09:09 -0700 | [diff] [blame] | 1019 | } |
| 1020 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1021 | Thread::Thread(bool daemon) : tls32_(daemon), wait_monitor_(nullptr), interrupted_(false) { |
| 1022 | wait_mutex_ = new Mutex("a thread wait mutex"); |
| 1023 | wait_cond_ = new ConditionVariable("a thread wait condition variable", *wait_mutex_); |
| 1024 | tlsPtr_.debug_invoke_req = new DebugInvokeReq; |
| 1025 | tlsPtr_.single_step_control = new SingleStepControl; |
| 1026 | tlsPtr_.instrumentation_stack = new std::deque<instrumentation::InstrumentationStackFrame>; |
| 1027 | tlsPtr_.name = new std::string(kThreadNameDuringStartup); |
| 1028 | |
Elliott Hughes | f5a7a47 | 2011-10-07 14:31:02 -0700 | [diff] [blame] | 1029 | CHECK_EQ((sizeof(Thread) % 4), 0U) << sizeof(Thread); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1030 | tls32_.state_and_flags.as_struct.flags = 0; |
| 1031 | tls32_.state_and_flags.as_struct.state = kNative; |
| 1032 | memset(&tlsPtr_.held_mutexes[0], 0, sizeof(tlsPtr_.held_mutexes)); |
Mathieu Chartier | 0651d41 | 2014-04-29 14:37:57 -0700 | [diff] [blame] | 1033 | std::fill(tlsPtr_.rosalloc_runs, |
| 1034 | tlsPtr_.rosalloc_runs + gc::allocator::RosAlloc::kNumThreadLocalSizeBrackets, |
Mathieu Chartier | 73d1e17 | 2014-04-11 17:53:48 -0700 | [diff] [blame] | 1035 | gc::allocator::RosAlloc::GetDedicatedFullRun()); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1036 | for (uint32_t i = 0; i < kMaxCheckpoints; ++i) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1037 | tlsPtr_.checkpoint_functions[i] = nullptr; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1038 | } |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 1039 | } |
| 1040 | |
Elliott Hughes | 7dc5166 | 2012-05-16 14:48:43 -0700 | [diff] [blame] | 1041 | bool Thread::IsStillStarting() const { |
| 1042 | // 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] | 1043 | // the thread is in kNative; it might also be in kVmWait. |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1044 | // 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] | 1045 | // assigned fairly early on, and needs to be. |
| 1046 | // It turns out that the last thing to change is the thread name; that's a good proxy for "has |
| 1047 | // this thread _ever_ entered kRunnable". |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1048 | return (tlsPtr_.jpeer == nullptr && tlsPtr_.opeer == nullptr) || |
| 1049 | (*tlsPtr_.name == kThreadNameDuringStartup); |
Elliott Hughes | 7dc5166 | 2012-05-16 14:48:43 -0700 | [diff] [blame] | 1050 | } |
| 1051 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1052 | void Thread::AssertNoPendingException() const { |
| 1053 | if (UNLIKELY(IsExceptionPending())) { |
| 1054 | ScopedObjectAccess soa(Thread::Current()); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1055 | mirror::Throwable* exception = GetException(nullptr); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1056 | LOG(FATAL) << "No pending exception expected: " << exception->Dump(); |
| 1057 | } |
| 1058 | } |
| 1059 | |
Mathieu Chartier | 8d7672e | 2014-02-25 10:57:16 -0800 | [diff] [blame] | 1060 | void Thread::AssertNoPendingExceptionForNewException(const char* msg) const { |
| 1061 | if (UNLIKELY(IsExceptionPending())) { |
| 1062 | ScopedObjectAccess soa(Thread::Current()); |
| 1063 | mirror::Throwable* exception = GetException(nullptr); |
| 1064 | LOG(FATAL) << "Throwing new exception " << msg << " with unexpected pending exception: " |
| 1065 | << exception->Dump(); |
| 1066 | } |
| 1067 | } |
| 1068 | |
Mathieu Chartier | 815873e | 2014-02-13 18:02:13 -0800 | [diff] [blame] | 1069 | static void MonitorExitVisitor(mirror::Object** object, void* arg, uint32_t /*thread_id*/, |
| 1070 | RootType /*root_type*/) |
Mathieu Chartier | 423d2a3 | 2013-09-12 17:33:56 -0700 | [diff] [blame] | 1071 | NO_THREAD_SAFETY_ANALYSIS { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1072 | Thread* self = reinterpret_cast<Thread*>(arg); |
Mathieu Chartier | 815873e | 2014-02-13 18:02:13 -0800 | [diff] [blame] | 1073 | mirror::Object* entered_monitor = *object; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1074 | if (self->HoldsLock(entered_monitor)) { |
| 1075 | LOG(WARNING) << "Calling MonitorExit on object " |
Mathieu Chartier | 815873e | 2014-02-13 18:02:13 -0800 | [diff] [blame] | 1076 | << object << " (" << PrettyTypeOf(entered_monitor) << ")" |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1077 | << " left locked by native thread " |
| 1078 | << *Thread::Current() << " which is detaching"; |
| 1079 | entered_monitor->MonitorExit(self); |
| 1080 | } |
Elliott Hughes | 02b48d1 | 2011-09-07 17:15:51 -0700 | [diff] [blame] | 1081 | } |
| 1082 | |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 1083 | void Thread::Destroy() { |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 1084 | Thread* self = this; |
| 1085 | DCHECK_EQ(self, Thread::Current()); |
Elliott Hughes | 02b48d1 | 2011-09-07 17:15:51 -0700 | [diff] [blame] | 1086 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1087 | if (tlsPtr_.opeer != nullptr) { |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 1088 | ScopedObjectAccess soa(self); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 1089 | // 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] | 1090 | HandleUncaughtExceptions(soa); |
| 1091 | RemoveFromThreadGroup(soa); |
Elliott Hughes | 534da07 | 2012-03-27 15:17:42 -0700 | [diff] [blame] | 1092 | |
Anwar Ghuloum | 3c50a4b | 2013-06-21 13:05:23 -0700 | [diff] [blame] | 1093 | // this.nativePeer = 0; |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1094 | if (Runtime::Current()->IsActiveTransaction()) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1095 | soa.DecodeField(WellKnownClasses::java_lang_Thread_nativePeer) |
| 1096 | ->SetLong<true>(tlsPtr_.opeer, 0); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1097 | } else { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1098 | soa.DecodeField(WellKnownClasses::java_lang_Thread_nativePeer) |
| 1099 | ->SetLong<false>(tlsPtr_.opeer, 0); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1100 | } |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 1101 | Dbg::PostThreadDeath(self); |
Elliott Hughes | 02b48d1 | 2011-09-07 17:15:51 -0700 | [diff] [blame] | 1102 | |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 1103 | // Thread.join() is implemented as an Object.wait() on the Thread.lock object. Signal anyone |
| 1104 | // who is waiting. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1105 | mirror::Object* lock = |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1106 | soa.DecodeField(WellKnownClasses::java_lang_Thread_lock)->GetObject(tlsPtr_.opeer); |
Elliott Hughes | 038a806 | 2011-09-18 14:12:41 -0700 | [diff] [blame] | 1107 | // (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] | 1108 | if (lock != nullptr) { |
| 1109 | SirtRef<mirror::Object> sirt_obj(self, lock); |
| 1110 | ObjectLock<mirror::Object> locker(self, &sirt_obj); |
Yevgeny Rouban | 63e8a68 | 2014-04-16 18:26:09 +0700 | [diff] [blame] | 1111 | locker.NotifyAll(); |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 1112 | } |
| 1113 | } |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 1114 | |
| 1115 | // On thread detach, all monitors entered with JNI MonitorEnter are automatically exited. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1116 | if (tlsPtr_.jni_env != nullptr) { |
| 1117 | tlsPtr_.jni_env->monitors.VisitRoots(MonitorExitVisitor, self, 0, kRootVMInternal); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 1118 | } |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 1119 | } |
Elliott Hughes | 02b48d1 | 2011-09-07 17:15:51 -0700 | [diff] [blame] | 1120 | |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 1121 | Thread::~Thread() { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1122 | if (tlsPtr_.jni_env != nullptr && tlsPtr_.jpeer != nullptr) { |
Mathieu Chartier | dbe6f46 | 2012-09-25 16:54:50 -0700 | [diff] [blame] | 1123 | // If pthread_create fails we don't have a jni env here. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1124 | tlsPtr_.jni_env->DeleteGlobalRef(tlsPtr_.jpeer); |
| 1125 | tlsPtr_.jpeer = nullptr; |
Mathieu Chartier | dbe6f46 | 2012-09-25 16:54:50 -0700 | [diff] [blame] | 1126 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1127 | tlsPtr_.opeer = nullptr; |
Mathieu Chartier | dbe6f46 | 2012-09-25 16:54:50 -0700 | [diff] [blame] | 1128 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1129 | bool initialized = (tlsPtr_.jni_env != nullptr); // Did Thread::Init run? |
Alexei Zavjalov | 1efa0a9 | 2014-02-04 02:08:31 +0700 | [diff] [blame] | 1130 | if (initialized) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1131 | delete tlsPtr_.jni_env; |
| 1132 | tlsPtr_.jni_env = nullptr; |
Alexei Zavjalov | 1efa0a9 | 2014-02-04 02:08:31 +0700 | [diff] [blame] | 1133 | } |
Mathieu Chartier | dbe6f46 | 2012-09-25 16:54:50 -0700 | [diff] [blame] | 1134 | CHECK_NE(GetState(), kRunnable); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1135 | CHECK_NE(ReadFlag(kCheckpointRequest), true); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1136 | CHECK(tlsPtr_.checkpoint_functions[0] == nullptr); |
| 1137 | CHECK(tlsPtr_.checkpoint_functions[1] == nullptr); |
| 1138 | CHECK(tlsPtr_.checkpoint_functions[2] == nullptr); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1139 | |
Mathieu Chartier | dbe6f46 | 2012-09-25 16:54:50 -0700 | [diff] [blame] | 1140 | // We may be deleting a still born thread. |
| 1141 | SetStateUnsafe(kTerminated); |
Elliott Hughes | 85d1545 | 2011-09-16 17:33:01 -0700 | [diff] [blame] | 1142 | |
| 1143 | delete wait_cond_; |
| 1144 | delete wait_mutex_; |
| 1145 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1146 | if (tlsPtr_.long_jump_context != nullptr) { |
| 1147 | delete tlsPtr_.long_jump_context; |
Ian Rogers | c928de9 | 2013-02-27 14:30:44 -0800 | [diff] [blame] | 1148 | } |
Elliott Hughes | 475fc23 | 2011-10-25 15:00:35 -0700 | [diff] [blame] | 1149 | |
Alexei Zavjalov | 1efa0a9 | 2014-02-04 02:08:31 +0700 | [diff] [blame] | 1150 | if (initialized) { |
| 1151 | CleanupCpu(); |
| 1152 | } |
| 1153 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1154 | delete tlsPtr_.debug_invoke_req; |
| 1155 | delete tlsPtr_.single_step_control; |
| 1156 | delete tlsPtr_.instrumentation_stack; |
| 1157 | delete tlsPtr_.name; |
| 1158 | delete tlsPtr_.stack_trace_sample; |
Elliott Hughes | d8af159 | 2012-04-16 20:40:15 -0700 | [diff] [blame] | 1159 | |
Hiroshi Yamauchi | cf58d4a | 2013-09-26 14:21:22 -0700 | [diff] [blame] | 1160 | Runtime::Current()->GetHeap()->RevokeThreadLocalBuffers(this); |
| 1161 | |
Elliott Hughes | d8af159 | 2012-04-16 20:40:15 -0700 | [diff] [blame] | 1162 | TearDownAlternateSignalStack(); |
Elliott Hughes | c1674ed | 2011-08-25 18:09:09 -0700 | [diff] [blame] | 1163 | } |
| 1164 | |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 1165 | void Thread::HandleUncaughtExceptions(ScopedObjectAccess& soa) { |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 1166 | if (!IsExceptionPending()) { |
| 1167 | return; |
| 1168 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1169 | ScopedLocalRef<jobject> peer(tlsPtr_.jni_env, soa.AddLocalReference<jobject>(tlsPtr_.opeer)); |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 1170 | ScopedThreadStateChange tsc(this, kNative); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 1171 | |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 1172 | // Get and clear the exception. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1173 | ScopedLocalRef<jthrowable> exception(tlsPtr_.jni_env, tlsPtr_.jni_env->ExceptionOccurred()); |
| 1174 | tlsPtr_.jni_env->ExceptionClear(); |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 1175 | |
| 1176 | // If the thread has its own handler, use that. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1177 | ScopedLocalRef<jobject> handler(tlsPtr_.jni_env, |
| 1178 | tlsPtr_.jni_env->GetObjectField(peer.get(), |
| 1179 | WellKnownClasses::java_lang_Thread_uncaughtHandler)); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1180 | if (handler.get() == nullptr) { |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 1181 | // Otherwise use the thread group's default handler. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1182 | handler.reset(tlsPtr_.jni_env->GetObjectField(peer.get(), |
| 1183 | WellKnownClasses::java_lang_Thread_group)); |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 1184 | } |
| 1185 | |
| 1186 | // Call the handler. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1187 | tlsPtr_.jni_env->CallVoidMethod(handler.get(), |
| 1188 | WellKnownClasses::java_lang_Thread$UncaughtExceptionHandler_uncaughtException, |
| 1189 | peer.get(), exception.get()); |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 1190 | |
| 1191 | // If the handler threw, clear that exception too. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1192 | tlsPtr_.jni_env->ExceptionClear(); |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 1193 | } |
| 1194 | |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 1195 | void Thread::RemoveFromThreadGroup(ScopedObjectAccess& soa) { |
Brian Carlstrom | 4514d3c | 2011-10-21 17:01:31 -0700 | [diff] [blame] | 1196 | // this.group.removeThread(this); |
| 1197 | // 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] | 1198 | mirror::Object* ogroup = soa.DecodeField(WellKnownClasses::java_lang_Thread_group) |
| 1199 | ->GetObject(tlsPtr_.opeer); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1200 | if (ogroup != nullptr) { |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 1201 | ScopedLocalRef<jobject> group(soa.Env(), soa.AddLocalReference<jobject>(ogroup)); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1202 | ScopedLocalRef<jobject> peer(soa.Env(), soa.AddLocalReference<jobject>(tlsPtr_.opeer)); |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 1203 | ScopedThreadStateChange tsc(soa.Self(), kNative); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1204 | tlsPtr_.jni_env->CallVoidMethod(group.get(), |
| 1205 | WellKnownClasses::java_lang_ThreadGroup_removeThread, |
| 1206 | peer.get()); |
Brian Carlstrom | 4514d3c | 2011-10-21 17:01:31 -0700 | [diff] [blame] | 1207 | } |
| 1208 | } |
| 1209 | |
Ian Rogers | 408f79a | 2011-08-23 18:22:33 -0700 | [diff] [blame] | 1210 | size_t Thread::NumSirtReferences() { |
Ian Rogers | a8cd9f4 | 2011-08-19 16:43:41 -0700 | [diff] [blame] | 1211 | size_t count = 0; |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1212 | for (StackIndirectReferenceTable* cur = tlsPtr_.top_sirt; cur; cur = cur->GetLink()) { |
Ian Rogers | a8cd9f4 | 2011-08-19 16:43:41 -0700 | [diff] [blame] | 1213 | count += cur->NumberOfReferences(); |
| 1214 | } |
| 1215 | return count; |
| 1216 | } |
| 1217 | |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 1218 | bool Thread::SirtContains(jobject obj) const { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1219 | StackReference<mirror::Object>* sirt_entry = |
| 1220 | reinterpret_cast<StackReference<mirror::Object>*>(obj); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1221 | for (StackIndirectReferenceTable* cur = tlsPtr_.top_sirt; cur; cur = cur->GetLink()) { |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1222 | if (cur->Contains(sirt_entry)) { |
Ian Rogers | a8cd9f4 | 2011-08-19 16:43:41 -0700 | [diff] [blame] | 1223 | return true; |
| 1224 | } |
| 1225 | } |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1226 | // JNI code invoked from portable code uses shadow frames rather than the SIRT. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1227 | return tlsPtr_.managed_stack.ShadowFramesContain(sirt_entry); |
TDYa127 | 28f1a14 | 2012-03-15 21:51:52 -0700 | [diff] [blame] | 1228 | } |
| 1229 | |
Mathieu Chartier | 89bb144 | 2014-02-12 10:06:23 -0800 | [diff] [blame] | 1230 | void Thread::SirtVisitRoots(RootCallback* visitor, void* arg, uint32_t thread_id) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1231 | for (StackIndirectReferenceTable* cur = tlsPtr_.top_sirt; cur; cur = cur->GetLink()) { |
Shih-wei Liao | 8dfc9d5 | 2011-09-28 18:06:15 -0700 | [diff] [blame] | 1232 | size_t num_refs = cur->NumberOfReferences(); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1233 | for (size_t j = 0; j < num_refs; ++j) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1234 | mirror::Object* object = cur->GetReference(j); |
Mathieu Chartier | 423d2a3 | 2013-09-12 17:33:56 -0700 | [diff] [blame] | 1235 | if (object != nullptr) { |
Mathieu Chartier | 815873e | 2014-02-13 18:02:13 -0800 | [diff] [blame] | 1236 | mirror::Object* old_obj = object; |
| 1237 | visitor(&object, arg, thread_id, kRootNativeStack); |
| 1238 | if (old_obj != object) { |
| 1239 | cur->SetReference(j, object); |
Mathieu Chartier | 423d2a3 | 2013-09-12 17:33:56 -0700 | [diff] [blame] | 1240 | } |
Brian Carlstrom | 5e73f9c | 2011-10-11 11:28:12 -0700 | [diff] [blame] | 1241 | } |
Shih-wei Liao | 8dfc9d5 | 2011-09-28 18:06:15 -0700 | [diff] [blame] | 1242 | } |
| 1243 | } |
| 1244 | } |
| 1245 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1246 | mirror::Object* Thread::DecodeJObject(jobject obj) const { |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 1247 | Locks::mutator_lock_->AssertSharedHeld(this); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1248 | if (obj == nullptr) { |
| 1249 | return nullptr; |
Ian Rogers | 408f79a | 2011-08-23 18:22:33 -0700 | [diff] [blame] | 1250 | } |
| 1251 | IndirectRef ref = reinterpret_cast<IndirectRef>(obj); |
| 1252 | IndirectRefKind kind = GetIndirectRefKind(ref); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1253 | mirror::Object* result; |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 1254 | // The "kinds" below are sorted by the frequency we expect to encounter them. |
| 1255 | if (kind == kLocal) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1256 | IndirectReferenceTable& locals = tlsPtr_.jni_env->locals; |
Mathieu Chartier | 6dda898 | 2014-03-06 11:11:48 -0800 | [diff] [blame] | 1257 | result = locals.Get(ref); |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 1258 | } else if (kind == kSirtOrInvalid) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1259 | // TODO: make stack indirect reference table lookup more efficient. |
| 1260 | // Check if this is a local reference in the SIRT. |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 1261 | if (LIKELY(SirtContains(obj))) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1262 | // Read from SIRT. |
| 1263 | result = reinterpret_cast<StackReference<mirror::Object>*>(obj)->AsMirrorPtr(); |
Mathieu Chartier | c645f1d | 2014-03-06 18:11:53 -0800 | [diff] [blame] | 1264 | VerifyObject(result); |
Ian Rogers | 408f79a | 2011-08-23 18:22:33 -0700 | [diff] [blame] | 1265 | } else { |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1266 | result = kInvalidIndirectRefObject; |
Ian Rogers | 408f79a | 2011-08-23 18:22:33 -0700 | [diff] [blame] | 1267 | } |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 1268 | } else if (kind == kGlobal) { |
Mathieu Chartier | c56057e | 2014-05-04 13:18:58 -0700 | [diff] [blame] | 1269 | JavaVMExt* const vm = Runtime::Current()->GetJavaVM(); |
| 1270 | result = vm->globals.SynchronizedGet(const_cast<Thread*>(this), &vm->globals_lock, ref); |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 1271 | } else { |
| 1272 | DCHECK_EQ(kind, kWeakGlobal); |
Mathieu Chartier | c11d9b8 | 2013-09-19 10:01:59 -0700 | [diff] [blame] | 1273 | result = Runtime::Current()->GetJavaVM()->DecodeWeakGlobal(const_cast<Thread*>(this), ref); |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 1274 | if (result == kClearedJniWeakGlobal) { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1275 | // This is a special case where it's okay to return nullptr. |
Mathieu Chartier | e8c48db | 2013-12-19 14:59:00 -0800 | [diff] [blame] | 1276 | return nullptr; |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 1277 | } |
Ian Rogers | 408f79a | 2011-08-23 18:22:33 -0700 | [diff] [blame] | 1278 | } |
| 1279 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1280 | if (UNLIKELY(result == nullptr)) { |
| 1281 | JniAbortF(nullptr, "use of deleted %s %p", ToStr<IndirectRefKind>(kind).c_str(), obj); |
Ian Rogers | 408f79a | 2011-08-23 18:22:33 -0700 | [diff] [blame] | 1282 | } |
Ian Rogers | 408f79a | 2011-08-23 18:22:33 -0700 | [diff] [blame] | 1283 | return result; |
| 1284 | } |
| 1285 | |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 1286 | // Implements java.lang.Thread.interrupted. |
| 1287 | bool Thread::Interrupted() { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1288 | MutexLock mu(Thread::Current(), *wait_mutex_); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1289 | bool interrupted = IsInterruptedLocked(); |
| 1290 | SetInterruptedLocked(false); |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 1291 | return interrupted; |
| 1292 | } |
| 1293 | |
| 1294 | // Implements java.lang.Thread.isInterrupted. |
| 1295 | bool Thread::IsInterrupted() { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 1296 | MutexLock mu(Thread::Current(), *wait_mutex_); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1297 | return IsInterruptedLocked(); |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 1298 | } |
| 1299 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1300 | void Thread::Interrupt(Thread* self) { |
Ian Rogers | c604d73 | 2012-10-14 16:09:54 -0700 | [diff] [blame] | 1301 | MutexLock mu(self, *wait_mutex_); |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 1302 | if (interrupted_) { |
| 1303 | return; |
| 1304 | } |
| 1305 | interrupted_ = true; |
Ian Rogers | c604d73 | 2012-10-14 16:09:54 -0700 | [diff] [blame] | 1306 | NotifyLocked(self); |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 1307 | } |
| 1308 | |
| 1309 | void Thread::Notify() { |
Ian Rogers | c604d73 | 2012-10-14 16:09:54 -0700 | [diff] [blame] | 1310 | Thread* self = Thread::Current(); |
| 1311 | MutexLock mu(self, *wait_mutex_); |
| 1312 | NotifyLocked(self); |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 1313 | } |
| 1314 | |
Ian Rogers | c604d73 | 2012-10-14 16:09:54 -0700 | [diff] [blame] | 1315 | void Thread::NotifyLocked(Thread* self) { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1316 | if (wait_monitor_ != nullptr) { |
Ian Rogers | c604d73 | 2012-10-14 16:09:54 -0700 | [diff] [blame] | 1317 | wait_cond_->Signal(self); |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 1318 | } |
| 1319 | } |
| 1320 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1321 | class CountStackDepthVisitor : public StackVisitor { |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 1322 | public: |
Brian Carlstrom | 93ba893 | 2013-07-17 21:31:49 -0700 | [diff] [blame] | 1323 | explicit CountStackDepthVisitor(Thread* thread) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1324 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1325 | : StackVisitor(thread, nullptr), |
Elliott Hughes | 08fc03a | 2012-06-26 17:34:00 -0700 | [diff] [blame] | 1326 | depth_(0), skip_depth_(0), skipping_(true) {} |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 1327 | |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1328 | bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Elliott Hughes | 29f2742 | 2011-09-18 16:02:18 -0700 | [diff] [blame] | 1329 | // 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] | 1330 | // Note we also skip the frame if it doesn't have a method (namely the callee |
| 1331 | // save frame) |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1332 | mirror::ArtMethod* m = GetMethod(); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1333 | if (skipping_ && !m->IsRuntimeMethod() && |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1334 | !mirror::Throwable::GetJavaLangThrowable()->IsAssignableFrom(m->GetDeclaringClass())) { |
Elliott Hughes | 29f2742 | 2011-09-18 16:02:18 -0700 | [diff] [blame] | 1335 | skipping_ = false; |
| 1336 | } |
| 1337 | if (!skipping_) { |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1338 | if (!m->IsRuntimeMethod()) { // Ignore runtime frames (in particular callee save). |
Ian Rogers | 6b0870d | 2011-12-15 19:38:12 -0800 | [diff] [blame] | 1339 | ++depth_; |
| 1340 | } |
Elliott Hughes | 29f2742 | 2011-09-18 16:02:18 -0700 | [diff] [blame] | 1341 | } else { |
| 1342 | ++skip_depth_; |
| 1343 | } |
Elliott Hughes | 530fa00 | 2012-03-12 11:44:49 -0700 | [diff] [blame] | 1344 | return true; |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 1345 | } |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 1346 | |
| 1347 | int GetDepth() const { |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 1348 | return depth_; |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 1349 | } |
| 1350 | |
Elliott Hughes | 29f2742 | 2011-09-18 16:02:18 -0700 | [diff] [blame] | 1351 | int GetSkipDepth() const { |
| 1352 | return skip_depth_; |
| 1353 | } |
| 1354 | |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 1355 | private: |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 1356 | uint32_t depth_; |
Elliott Hughes | 29f2742 | 2011-09-18 16:02:18 -0700 | [diff] [blame] | 1357 | uint32_t skip_depth_; |
| 1358 | bool skipping_; |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 1359 | }; |
| 1360 | |
Sebastien Hertz | ee1d79a | 2014-02-21 15:46:30 +0100 | [diff] [blame] | 1361 | template<bool kTransactionActive> |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1362 | class BuildInternalStackTraceVisitor : public StackVisitor { |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 1363 | public: |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 1364 | explicit BuildInternalStackTraceVisitor(Thread* self, Thread* thread, int skip_depth) |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1365 | : StackVisitor(thread, nullptr), self_(self), |
| 1366 | 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] | 1367 | |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1368 | bool Init(int depth) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1369 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 1370 | // Allocate method trace with an extra slot that will hold the PC trace |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1371 | SirtRef<mirror::ObjectArray<mirror::Object> > |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1372 | method_trace(self_, |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1373 | Runtime::Current()->GetClassLinker()->AllocObjectArray<mirror::Object>(self_, |
| 1374 | depth + 1)); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1375 | if (method_trace.get() == nullptr) { |
Ian Rogers | 283ed0d | 2012-02-16 15:25:09 -0800 | [diff] [blame] | 1376 | return false; |
Elliott Hughes | 726079d | 2011-10-07 18:43:44 -0700 | [diff] [blame] | 1377 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1378 | mirror::IntArray* dex_pc_trace = mirror::IntArray::Alloc(self_, depth); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1379 | if (dex_pc_trace == nullptr) { |
Ian Rogers | 283ed0d | 2012-02-16 15:25:09 -0800 | [diff] [blame] | 1380 | return false; |
Elliott Hughes | 726079d | 2011-10-07 18:43:44 -0700 | [diff] [blame] | 1381 | } |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 1382 | // Save PC trace in last element of method trace, also places it into the |
| 1383 | // object graph. |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1384 | // We are called from native: use non-transactional mode. |
Sebastien Hertz | ee1d79a | 2014-02-21 15:46:30 +0100 | [diff] [blame] | 1385 | method_trace->Set<kTransactionActive>(depth, dex_pc_trace); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1386 | // 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] | 1387 | const char* last_no_suspend_cause = |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1388 | self_->StartAssertNoThreadSuspension("Building internal stack trace"); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1389 | CHECK(last_no_suspend_cause == nullptr) << last_no_suspend_cause; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1390 | method_trace_ = method_trace.get(); |
| 1391 | dex_pc_trace_ = dex_pc_trace; |
Ian Rogers | 283ed0d | 2012-02-16 15:25:09 -0800 | [diff] [blame] | 1392 | return true; |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 1393 | } |
| 1394 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1395 | virtual ~BuildInternalStackTraceVisitor() { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1396 | if (method_trace_ != nullptr) { |
| 1397 | self_->EndAssertNoThreadSuspension(nullptr); |
Ian Rogers | 52673ff | 2012-06-27 23:25:34 -0700 | [diff] [blame] | 1398 | } |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1399 | } |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 1400 | |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1401 | bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1402 | if (method_trace_ == nullptr || dex_pc_trace_ == nullptr) { |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 1403 | return true; // We're probably trying to fillInStackTrace for an OutOfMemoryError. |
Elliott Hughes | 726079d | 2011-10-07 18:43:44 -0700 | [diff] [blame] | 1404 | } |
Elliott Hughes | 29f2742 | 2011-09-18 16:02:18 -0700 | [diff] [blame] | 1405 | if (skip_depth_ > 0) { |
| 1406 | skip_depth_--; |
Elliott Hughes | 530fa00 | 2012-03-12 11:44:49 -0700 | [diff] [blame] | 1407 | return true; |
Elliott Hughes | 29f2742 | 2011-09-18 16:02:18 -0700 | [diff] [blame] | 1408 | } |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1409 | mirror::ArtMethod* m = GetMethod(); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1410 | if (m->IsRuntimeMethod()) { |
| 1411 | return true; // Ignore runtime frames (in particular callee save). |
Ian Rogers | 6b0870d | 2011-12-15 19:38:12 -0800 | [diff] [blame] | 1412 | } |
Sebastien Hertz | ee1d79a | 2014-02-21 15:46:30 +0100 | [diff] [blame] | 1413 | method_trace_->Set<kTransactionActive>(count_, m); |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 1414 | dex_pc_trace_->Set<kTransactionActive>(count_, |
| 1415 | m->IsProxyMethod() ? DexFile::kDexNoIndex : GetDexPc()); |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 1416 | ++count_; |
Elliott Hughes | 530fa00 | 2012-03-12 11:44:49 -0700 | [diff] [blame] | 1417 | return true; |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 1418 | } |
| 1419 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1420 | mirror::ObjectArray<mirror::Object>* GetInternalStackTrace() const { |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1421 | return method_trace_; |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 1422 | } |
| 1423 | |
| 1424 | private: |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1425 | Thread* const self_; |
Elliott Hughes | 29f2742 | 2011-09-18 16:02:18 -0700 | [diff] [blame] | 1426 | // How many more frames to skip. |
| 1427 | int32_t skip_depth_; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1428 | // Current position down stack trace. |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 1429 | uint32_t count_; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1430 | // Array of dex PC values. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1431 | mirror::IntArray* dex_pc_trace_; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1432 | // 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] | 1433 | mirror::ObjectArray<mirror::Object>* method_trace_; |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 1434 | }; |
| 1435 | |
Sebastien Hertz | ee1d79a | 2014-02-21 15:46:30 +0100 | [diff] [blame] | 1436 | template<bool kTransactionActive> |
Ian Rogers | 64b6d14 | 2012-10-29 16:34:15 -0700 | [diff] [blame] | 1437 | jobject Thread::CreateInternalStackTrace(const ScopedObjectAccessUnchecked& soa) const { |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 1438 | // Compute depth of stack |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 1439 | CountStackDepthVisitor count_visitor(const_cast<Thread*>(this)); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1440 | count_visitor.WalkStack(); |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 1441 | int32_t depth = count_visitor.GetDepth(); |
Elliott Hughes | 29f2742 | 2011-09-18 16:02:18 -0700 | [diff] [blame] | 1442 | int32_t skip_depth = count_visitor.GetSkipDepth(); |
Shih-wei Liao | 4417536 | 2011-08-28 16:59:17 -0700 | [diff] [blame] | 1443 | |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1444 | // Build internal stack trace. |
Sebastien Hertz | ee1d79a | 2014-02-21 15:46:30 +0100 | [diff] [blame] | 1445 | BuildInternalStackTraceVisitor<kTransactionActive> build_trace_visitor(soa.Self(), |
| 1446 | const_cast<Thread*>(this), |
| 1447 | skip_depth); |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 1448 | if (!build_trace_visitor.Init(depth)) { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1449 | return nullptr; // Allocation failed. |
Ian Rogers | 283ed0d | 2012-02-16 15:25:09 -0800 | [diff] [blame] | 1450 | } |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1451 | build_trace_visitor.WalkStack(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1452 | mirror::ObjectArray<mirror::Object>* trace = build_trace_visitor.GetInternalStackTrace(); |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 1453 | if (kIsDebugBuild) { |
| 1454 | for (int32_t i = 0; i < trace->GetLength(); ++i) { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1455 | CHECK(trace->Get(i) != nullptr); |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 1456 | } |
| 1457 | } |
| 1458 | return soa.AddLocalReference<jobjectArray>(trace); |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 1459 | } |
Sebastien Hertz | ee1d79a | 2014-02-21 15:46:30 +0100 | [diff] [blame] | 1460 | template jobject Thread::CreateInternalStackTrace<false>(const ScopedObjectAccessUnchecked& soa) const; |
| 1461 | template jobject Thread::CreateInternalStackTrace<true>(const ScopedObjectAccessUnchecked& soa) const; |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 1462 | |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 1463 | jobjectArray Thread::InternalStackTraceToStackTraceElementArray(const ScopedObjectAccess& soa, |
| 1464 | jobject internal, jobjectArray output_array, int* stack_depth) { |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 1465 | // 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] | 1466 | int32_t depth = soa.Decode<mirror::ObjectArray<mirror::Object>*>(internal)->GetLength() - 1; |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 1467 | |
| 1468 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 1469 | |
Elliott Hughes | 01158d7 | 2011-09-19 19:47:10 -0700 | [diff] [blame] | 1470 | jobjectArray result; |
Mathieu Chartier | 530825b | 2013-09-25 17:56:49 -0700 | [diff] [blame] | 1471 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1472 | if (output_array != nullptr) { |
Elliott Hughes | 01158d7 | 2011-09-19 19:47:10 -0700 | [diff] [blame] | 1473 | // Reuse the array we were given. |
| 1474 | result = output_array; |
Elliott Hughes | 01158d7 | 2011-09-19 19:47:10 -0700 | [diff] [blame] | 1475 | // ...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] | 1476 | const int32_t traces_length = |
| 1477 | soa.Decode<mirror::ObjectArray<mirror::StackTraceElement>*>(result)->GetLength(); |
| 1478 | depth = std::min(depth, traces_length); |
Elliott Hughes | 01158d7 | 2011-09-19 19:47:10 -0700 | [diff] [blame] | 1479 | } else { |
| 1480 | // Create java_trace array and place in local reference table |
Mathieu Chartier | 530825b | 2013-09-25 17:56:49 -0700 | [diff] [blame] | 1481 | mirror::ObjectArray<mirror::StackTraceElement>* java_traces = |
| 1482 | class_linker->AllocStackTraceElementArray(soa.Self(), depth); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1483 | if (java_traces == nullptr) { |
| 1484 | return nullptr; |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 1485 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1486 | result = soa.AddLocalReference<jobjectArray>(java_traces); |
Elliott Hughes | 01158d7 | 2011-09-19 19:47:10 -0700 | [diff] [blame] | 1487 | } |
| 1488 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1489 | if (stack_depth != nullptr) { |
Elliott Hughes | 01158d7 | 2011-09-19 19:47:10 -0700 | [diff] [blame] | 1490 | *stack_depth = depth; |
| 1491 | } |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 1492 | |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 1493 | for (int32_t i = 0; i < depth; ++i) { |
Mathieu Chartier | 530825b | 2013-09-25 17:56:49 -0700 | [diff] [blame] | 1494 | mirror::ObjectArray<mirror::Object>* method_trace = |
| 1495 | soa.Decode<mirror::ObjectArray<mirror::Object>*>(internal); |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 1496 | // Prepare parameters for StackTraceElement(String cls, String method, String file, int line) |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1497 | mirror::ArtMethod* method = down_cast<mirror::ArtMethod*>(method_trace->Get(i)); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1498 | MethodHelper mh(method); |
Jeff Hao | 228d6b8 | 2013-12-03 15:00:05 -0800 | [diff] [blame] | 1499 | int32_t line_number; |
Brian Carlstrom | 7c6aca2 | 2014-01-31 18:44:56 -0800 | [diff] [blame] | 1500 | SirtRef<mirror::String> class_name_object(soa.Self(), nullptr); |
| 1501 | SirtRef<mirror::String> source_name_object(soa.Self(), nullptr); |
Jeff Hao | 228d6b8 | 2013-12-03 15:00:05 -0800 | [diff] [blame] | 1502 | if (method->IsProxyMethod()) { |
| 1503 | line_number = -1; |
| 1504 | class_name_object.reset(method->GetDeclaringClass()->GetName()); |
| 1505 | // source_name_object intentionally left null for proxy methods |
| 1506 | } else { |
| 1507 | mirror::IntArray* pc_trace = down_cast<mirror::IntArray*>(method_trace->Get(depth)); |
| 1508 | uint32_t dex_pc = pc_trace->Get(i); |
| 1509 | line_number = mh.GetLineNumFromDexPC(dex_pc); |
| 1510 | // Allocate element, potentially triggering GC |
| 1511 | // TODO: reuse class_name_object via Class::name_? |
| 1512 | const char* descriptor = mh.GetDeclaringClassDescriptor(); |
Brian Carlstrom | 7c6aca2 | 2014-01-31 18:44:56 -0800 | [diff] [blame] | 1513 | CHECK(descriptor != nullptr); |
Jeff Hao | 228d6b8 | 2013-12-03 15:00:05 -0800 | [diff] [blame] | 1514 | std::string class_name(PrettyDescriptor(descriptor)); |
| 1515 | class_name_object.reset(mirror::String::AllocFromModifiedUtf8(soa.Self(), class_name.c_str())); |
Brian Carlstrom | 7c6aca2 | 2014-01-31 18:44:56 -0800 | [diff] [blame] | 1516 | if (class_name_object.get() == nullptr) { |
| 1517 | return nullptr; |
Jeff Hao | 228d6b8 | 2013-12-03 15:00:05 -0800 | [diff] [blame] | 1518 | } |
| 1519 | const char* source_file = mh.GetDeclaringClassSourceFile(); |
Brian Carlstrom | 7c6aca2 | 2014-01-31 18:44:56 -0800 | [diff] [blame] | 1520 | if (source_file != nullptr) { |
| 1521 | source_name_object.reset(mirror::String::AllocFromModifiedUtf8(soa.Self(), source_file)); |
| 1522 | if (source_name_object.get() == nullptr) { |
| 1523 | return nullptr; |
| 1524 | } |
Jeff Hao | 228d6b8 | 2013-12-03 15:00:05 -0800 | [diff] [blame] | 1525 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 1526 | } |
Ian Rogers | 4860131 | 2011-12-07 16:45:19 -0800 | [diff] [blame] | 1527 | const char* method_name = mh.GetName(); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1528 | CHECK(method_name != nullptr); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1529 | SirtRef<mirror::String> method_name_object(soa.Self(), |
| 1530 | mirror::String::AllocFromModifiedUtf8(soa.Self(), |
| 1531 | method_name)); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1532 | if (method_name_object.get() == nullptr) { |
| 1533 | return nullptr; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 1534 | } |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1535 | mirror::StackTraceElement* obj = mirror::StackTraceElement::Alloc( |
| 1536 | 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] | 1537 | if (obj == nullptr) { |
| 1538 | return nullptr; |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 1539 | } |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 1540 | // We are called from native: use non-transactional mode. |
| 1541 | soa.Decode<mirror::ObjectArray<mirror::StackTraceElement>*>(result)->Set<false>(i, obj); |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 1542 | } |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 1543 | return result; |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 1544 | } |
| 1545 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1546 | void Thread::ThrowNewExceptionF(const ThrowLocation& throw_location, |
| 1547 | const char* exception_class_descriptor, const char* fmt, ...) { |
Elliott Hughes | a5b897e | 2011-08-16 11:33:06 -0700 | [diff] [blame] | 1548 | va_list args; |
| 1549 | va_start(args, fmt); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1550 | ThrowNewExceptionV(throw_location, exception_class_descriptor, |
| 1551 | fmt, args); |
Elliott Hughes | a5b897e | 2011-08-16 11:33:06 -0700 | [diff] [blame] | 1552 | va_end(args); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 1553 | } |
| 1554 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1555 | void Thread::ThrowNewExceptionV(const ThrowLocation& throw_location, |
| 1556 | const char* exception_class_descriptor, |
| 1557 | const char* fmt, va_list ap) { |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 1558 | std::string msg; |
| 1559 | StringAppendV(&msg, fmt, ap); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1560 | ThrowNewException(throw_location, exception_class_descriptor, msg.c_str()); |
Elliott Hughes | 5cb5ad2 | 2011-10-02 12:13:39 -0700 | [diff] [blame] | 1561 | } |
Elliott Hughes | 37f7a40 | 2011-08-22 18:56:01 -0700 | [diff] [blame] | 1562 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1563 | void Thread::ThrowNewException(const ThrowLocation& throw_location, const char* exception_class_descriptor, |
| 1564 | const char* msg) { |
Mathieu Chartier | 8d7672e | 2014-02-25 10:57:16 -0800 | [diff] [blame] | 1565 | // Callers should either clear or call ThrowNewWrappedException. |
| 1566 | AssertNoPendingExceptionForNewException(msg); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1567 | ThrowNewWrappedException(throw_location, exception_class_descriptor, msg); |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 1568 | } |
| 1569 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1570 | void Thread::ThrowNewWrappedException(const ThrowLocation& throw_location, |
| 1571 | const char* exception_class_descriptor, |
| 1572 | const char* msg) { |
| 1573 | DCHECK_EQ(this, Thread::Current()); |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 1574 | ScopedObjectAccessUnchecked soa(this); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1575 | // Ensure we don't forget arguments over object allocation. |
| 1576 | SirtRef<mirror::Object> saved_throw_this(this, throw_location.GetThis()); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1577 | SirtRef<mirror::ArtMethod> saved_throw_method(this, throw_location.GetMethod()); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1578 | // Ignore the cause throw location. TODO: should we report this as a re-throw? |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 1579 | ScopedLocalRef<jobject> cause(GetJniEnv(), soa.AddLocalReference<jobject>(GetException(nullptr))); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1580 | ClearException(); |
| 1581 | Runtime* runtime = Runtime::Current(); |
Elliott Hughes | e5b0dc8 | 2011-08-23 09:59:02 -0700 | [diff] [blame] | 1582 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1583 | mirror::ClassLoader* cl = nullptr; |
| 1584 | if (saved_throw_method.get() != nullptr) { |
| 1585 | cl = saved_throw_method.get()->GetDeclaringClass()->GetClassLoader(); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1586 | } |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1587 | SirtRef<mirror::ClassLoader> class_loader(this, cl); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1588 | SirtRef<mirror::Class> |
Ian Rogers | 9837939 | 2014-02-24 16:53:16 -0800 | [diff] [blame] | 1589 | exception_class(this, runtime->GetClassLinker()->FindClass(this, exception_class_descriptor, |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1590 | class_loader)); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1591 | if (UNLIKELY(exception_class.get() == nullptr)) { |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 1592 | CHECK(IsExceptionPending()); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1593 | LOG(ERROR) << "No exception class " << PrettyDescriptor(exception_class_descriptor); |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 1594 | return; |
| 1595 | } |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1596 | |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1597 | if (UNLIKELY(!runtime->GetClassLinker()->EnsureInitialized(exception_class, true, true))) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1598 | DCHECK(IsExceptionPending()); |
| 1599 | return; |
| 1600 | } |
| 1601 | DCHECK(!runtime->IsStarted() || exception_class->IsThrowableClass()); |
| 1602 | SirtRef<mirror::Throwable> exception(this, |
| 1603 | down_cast<mirror::Throwable*>(exception_class->AllocObject(this))); |
| 1604 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1605 | // If we couldn't allocate the exception, throw the pre-allocated out of memory exception. |
| 1606 | if (exception.get() == nullptr) { |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 1607 | ThrowLocation gc_safe_throw_location(saved_throw_this.get(), saved_throw_method.get(), |
| 1608 | throw_location.GetDexPc()); |
| 1609 | SetException(gc_safe_throw_location, Runtime::Current()->GetPreAllocatedOutOfMemoryError()); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1610 | return; |
| 1611 | } |
| 1612 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1613 | // Choose an appropriate constructor and set up the arguments. |
| 1614 | const char* signature; |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 1615 | ScopedLocalRef<jstring> msg_string(GetJniEnv(), nullptr); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1616 | if (msg != nullptr) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1617 | // Ensure we remember this and the method over the String allocation. |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 1618 | msg_string.reset( |
| 1619 | soa.AddLocalReference<jstring>(mirror::String::AllocFromModifiedUtf8(this, msg))); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1620 | if (UNLIKELY(msg_string.get() == nullptr)) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1621 | CHECK(IsExceptionPending()); // OOME. |
| 1622 | return; |
Brian Carlstrom | ebd1fd2 | 2011-12-07 15:46:26 -0800 | [diff] [blame] | 1623 | } |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1624 | if (cause.get() == nullptr) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1625 | signature = "(Ljava/lang/String;)V"; |
| 1626 | } else { |
| 1627 | signature = "(Ljava/lang/String;Ljava/lang/Throwable;)V"; |
| 1628 | } |
| 1629 | } else { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1630 | if (cause.get() == nullptr) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1631 | signature = "()V"; |
| 1632 | } else { |
| 1633 | signature = "(Ljava/lang/Throwable;)V"; |
| 1634 | } |
Brian Carlstrom | ebd1fd2 | 2011-12-07 15:46:26 -0800 | [diff] [blame] | 1635 | } |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1636 | mirror::ArtMethod* exception_init_method = |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1637 | exception_class->FindDeclaredDirectMethod("<init>", signature); |
| 1638 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1639 | CHECK(exception_init_method != nullptr) << "No <init>" << signature << " in " |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1640 | << PrettyDescriptor(exception_class_descriptor); |
| 1641 | |
| 1642 | if (UNLIKELY(!runtime->IsStarted())) { |
| 1643 | // Something is trying to throw an exception without a started runtime, which is the common |
| 1644 | // case in the compiler. We won't be able to invoke the constructor of the exception, so set |
| 1645 | // the exception fields directly. |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1646 | if (msg != nullptr) { |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 1647 | exception->SetDetailMessage(down_cast<mirror::String*>(DecodeJObject(msg_string.get()))); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1648 | } |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1649 | if (cause.get() != nullptr) { |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 1650 | exception->SetCause(down_cast<mirror::Throwable*>(DecodeJObject(cause.get()))); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1651 | } |
Ian Rogers | c45b8b5 | 2014-05-03 01:39:59 -0700 | [diff] [blame] | 1652 | ScopedLocalRef<jobject> trace(GetJniEnv(), |
| 1653 | Runtime::Current()->IsActiveTransaction() |
| 1654 | ? CreateInternalStackTrace<true>(soa) |
| 1655 | : CreateInternalStackTrace<false>(soa)); |
| 1656 | if (trace.get() != nullptr) { |
| 1657 | exception->SetStackState(down_cast<mirror::Throwable*>(DecodeJObject(trace.get()))); |
| 1658 | } |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1659 | ThrowLocation gc_safe_throw_location(saved_throw_this.get(), saved_throw_method.get(), |
| 1660 | throw_location.GetDexPc()); |
| 1661 | SetException(gc_safe_throw_location, exception.get()); |
| 1662 | } else { |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 1663 | jvalue jv_args[2]; |
| 1664 | size_t i = 0; |
| 1665 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1666 | if (msg != nullptr) { |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 1667 | jv_args[i].l = msg_string.get(); |
| 1668 | ++i; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1669 | } |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1670 | if (cause.get() != nullptr) { |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 1671 | jv_args[i].l = cause.get(); |
| 1672 | ++i; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1673 | } |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 1674 | InvokeWithJValues(soa, exception.get(), soa.EncodeMethod(exception_init_method), jv_args); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1675 | if (LIKELY(!IsExceptionPending())) { |
| 1676 | ThrowLocation gc_safe_throw_location(saved_throw_this.get(), saved_throw_method.get(), |
| 1677 | throw_location.GetDexPc()); |
| 1678 | SetException(gc_safe_throw_location, exception.get()); |
| 1679 | } |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 1680 | } |
Elliott Hughes | a5b897e | 2011-08-16 11:33:06 -0700 | [diff] [blame] | 1681 | } |
| 1682 | |
Elliott Hughes | 2ced6a5 | 2011-10-16 18:44:48 -0700 | [diff] [blame] | 1683 | void Thread::ThrowOutOfMemoryError(const char* msg) { |
| 1684 | LOG(ERROR) << StringPrintf("Throwing OutOfMemoryError \"%s\"%s", |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1685 | msg, (tls32_.throwing_OutOfMemoryError ? " (recursive case)" : "")); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1686 | ThrowLocation throw_location = GetCurrentLocationForThrow(); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1687 | if (!tls32_.throwing_OutOfMemoryError) { |
| 1688 | tls32_.throwing_OutOfMemoryError = true; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1689 | ThrowNewException(throw_location, "Ljava/lang/OutOfMemoryError;", msg); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1690 | tls32_.throwing_OutOfMemoryError = false; |
Elliott Hughes | 418dfe7 | 2011-10-06 18:56:27 -0700 | [diff] [blame] | 1691 | } else { |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 1692 | Dump(LOG(ERROR)); // The pre-allocated OOME has no stack, so help out and log one. |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1693 | SetException(throw_location, Runtime::Current()->GetPreAllocatedOutOfMemoryError()); |
Elliott Hughes | 418dfe7 | 2011-10-06 18:56:27 -0700 | [diff] [blame] | 1694 | } |
Elliott Hughes | 79082e3 | 2011-08-25 12:07:32 -0700 | [diff] [blame] | 1695 | } |
| 1696 | |
Elliott Hughes | 498508c | 2011-10-17 14:58:22 -0700 | [diff] [blame] | 1697 | Thread* Thread::CurrentFromGdb() { |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 1698 | return Thread::Current(); |
| 1699 | } |
| 1700 | |
| 1701 | void Thread::DumpFromGdb() const { |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1702 | std::ostringstream ss; |
| 1703 | Dump(ss); |
Elliott Hughes | 9557241 | 2011-12-13 18:14:20 -0800 | [diff] [blame] | 1704 | std::string str(ss.str()); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 1705 | // log to stderr for debugging command line processes |
| 1706 | std::cerr << str; |
| 1707 | #ifdef HAVE_ANDROID_OS |
| 1708 | // log to logcat for debugging frameworks processes |
| 1709 | LOG(INFO) << str; |
| 1710 | #endif |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 1711 | } |
| 1712 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1713 | // Explicitly instantiate 32 and 64bit thread offset dumping support. |
| 1714 | template void Thread::DumpThreadOffset<4>(std::ostream& os, uint32_t offset); |
| 1715 | template void Thread::DumpThreadOffset<8>(std::ostream& os, uint32_t offset); |
Elliott Hughes | 98e2017 | 2012-04-24 15:38:13 -0700 | [diff] [blame] | 1716 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1717 | template<size_t ptr_size> |
| 1718 | void Thread::DumpThreadOffset(std::ostream& os, uint32_t offset) { |
| 1719 | #define DO_THREAD_OFFSET(x, y) \ |
| 1720 | if (offset == x.Uint32Value()) { \ |
| 1721 | os << y; \ |
Brian Carlstrom | f69863b | 2013-07-17 21:53:13 -0700 | [diff] [blame] | 1722 | return; \ |
| 1723 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1724 | DO_THREAD_OFFSET(ThreadFlagsOffset<ptr_size>(), "state_and_flags") |
| 1725 | DO_THREAD_OFFSET(CardTableOffset<ptr_size>(), "card_table") |
| 1726 | DO_THREAD_OFFSET(ExceptionOffset<ptr_size>(), "exception") |
| 1727 | DO_THREAD_OFFSET(PeerOffset<ptr_size>(), "peer"); |
| 1728 | DO_THREAD_OFFSET(JniEnvOffset<ptr_size>(), "jni_env") |
| 1729 | DO_THREAD_OFFSET(SelfOffset<ptr_size>(), "self") |
| 1730 | DO_THREAD_OFFSET(StackEndOffset<ptr_size>(), "stack_end") |
| 1731 | DO_THREAD_OFFSET(ThinLockIdOffset<ptr_size>(), "thin_lock_thread_id") |
| 1732 | DO_THREAD_OFFSET(TopOfManagedStackOffset<ptr_size>(), "top_quick_frame_method") |
| 1733 | DO_THREAD_OFFSET(TopOfManagedStackPcOffset<ptr_size>(), "top_quick_frame_pc") |
| 1734 | DO_THREAD_OFFSET(TopShadowFrameOffset<ptr_size>(), "top_shadow_frame") |
| 1735 | DO_THREAD_OFFSET(TopSirtOffset<ptr_size>(), "top_sirt") |
| 1736 | DO_THREAD_OFFSET(ThreadSuspendTriggerOffset<ptr_size>(), "suspend_trigger") |
Elliott Hughes | 28fa76d | 2012-04-09 17:31:46 -0700 | [diff] [blame] | 1737 | #undef DO_THREAD_OFFSET |
Elliott Hughes | 98e2017 | 2012-04-24 15:38:13 -0700 | [diff] [blame] | 1738 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1739 | #define INTERPRETER_ENTRY_POINT_INFO(x) \ |
| 1740 | if (INTERPRETER_ENTRYPOINT_OFFSET(ptr_size, x).Uint32Value() == offset) { \ |
| 1741 | os << #x; \ |
| 1742 | return; \ |
Elliott Hughes | 98e2017 | 2012-04-24 15:38:13 -0700 | [diff] [blame] | 1743 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1744 | INTERPRETER_ENTRY_POINT_INFO(pInterpreterToInterpreterBridge) |
| 1745 | INTERPRETER_ENTRY_POINT_INFO(pInterpreterToCompiledCodeBridge) |
| 1746 | #undef INTERPRETER_ENTRY_POINT_INFO |
| 1747 | |
| 1748 | #define JNI_ENTRY_POINT_INFO(x) \ |
| 1749 | if (JNI_ENTRYPOINT_OFFSET(ptr_size, x).Uint32Value() == offset) { \ |
| 1750 | os << #x; \ |
| 1751 | return; \ |
| 1752 | } |
| 1753 | JNI_ENTRY_POINT_INFO(pDlsymLookup) |
| 1754 | #undef JNI_ENTRY_POINT_INFO |
| 1755 | |
| 1756 | #define PORTABLE_ENTRY_POINT_INFO(x) \ |
| 1757 | if (PORTABLE_ENTRYPOINT_OFFSET(ptr_size, x).Uint32Value() == offset) { \ |
| 1758 | os << #x; \ |
| 1759 | return; \ |
| 1760 | } |
| 1761 | PORTABLE_ENTRY_POINT_INFO(pPortableImtConflictTrampoline) |
| 1762 | PORTABLE_ENTRY_POINT_INFO(pPortableResolutionTrampoline) |
| 1763 | PORTABLE_ENTRY_POINT_INFO(pPortableToInterpreterBridge) |
| 1764 | #undef PORTABLE_ENTRY_POINT_INFO |
| 1765 | |
| 1766 | #define QUICK_ENTRY_POINT_INFO(x) \ |
| 1767 | if (QUICK_ENTRYPOINT_OFFSET(ptr_size, x).Uint32Value() == offset) { \ |
| 1768 | os << #x; \ |
| 1769 | return; \ |
| 1770 | } |
| 1771 | QUICK_ENTRY_POINT_INFO(pAllocArray) |
| 1772 | QUICK_ENTRY_POINT_INFO(pAllocArrayResolved) |
| 1773 | QUICK_ENTRY_POINT_INFO(pAllocArrayWithAccessCheck) |
| 1774 | QUICK_ENTRY_POINT_INFO(pAllocObject) |
| 1775 | QUICK_ENTRY_POINT_INFO(pAllocObjectResolved) |
| 1776 | QUICK_ENTRY_POINT_INFO(pAllocObjectInitialized) |
| 1777 | QUICK_ENTRY_POINT_INFO(pAllocObjectWithAccessCheck) |
| 1778 | QUICK_ENTRY_POINT_INFO(pCheckAndAllocArray) |
| 1779 | QUICK_ENTRY_POINT_INFO(pCheckAndAllocArrayWithAccessCheck) |
| 1780 | QUICK_ENTRY_POINT_INFO(pInstanceofNonTrivial) |
| 1781 | QUICK_ENTRY_POINT_INFO(pCheckCast) |
| 1782 | QUICK_ENTRY_POINT_INFO(pInitializeStaticStorage) |
| 1783 | QUICK_ENTRY_POINT_INFO(pInitializeTypeAndVerifyAccess) |
| 1784 | QUICK_ENTRY_POINT_INFO(pInitializeType) |
| 1785 | QUICK_ENTRY_POINT_INFO(pResolveString) |
| 1786 | QUICK_ENTRY_POINT_INFO(pSet32Instance) |
| 1787 | QUICK_ENTRY_POINT_INFO(pSet32Static) |
| 1788 | QUICK_ENTRY_POINT_INFO(pSet64Instance) |
| 1789 | QUICK_ENTRY_POINT_INFO(pSet64Static) |
| 1790 | QUICK_ENTRY_POINT_INFO(pSetObjInstance) |
| 1791 | QUICK_ENTRY_POINT_INFO(pSetObjStatic) |
| 1792 | QUICK_ENTRY_POINT_INFO(pGet32Instance) |
| 1793 | QUICK_ENTRY_POINT_INFO(pGet32Static) |
| 1794 | QUICK_ENTRY_POINT_INFO(pGet64Instance) |
| 1795 | QUICK_ENTRY_POINT_INFO(pGet64Static) |
| 1796 | QUICK_ENTRY_POINT_INFO(pGetObjInstance) |
| 1797 | QUICK_ENTRY_POINT_INFO(pGetObjStatic) |
| 1798 | QUICK_ENTRY_POINT_INFO(pAputObjectWithNullAndBoundCheck) |
| 1799 | QUICK_ENTRY_POINT_INFO(pAputObjectWithBoundCheck) |
| 1800 | QUICK_ENTRY_POINT_INFO(pAputObject) |
| 1801 | QUICK_ENTRY_POINT_INFO(pHandleFillArrayData) |
| 1802 | QUICK_ENTRY_POINT_INFO(pJniMethodStart) |
| 1803 | QUICK_ENTRY_POINT_INFO(pJniMethodStartSynchronized) |
| 1804 | QUICK_ENTRY_POINT_INFO(pJniMethodEnd) |
| 1805 | QUICK_ENTRY_POINT_INFO(pJniMethodEndSynchronized) |
| 1806 | QUICK_ENTRY_POINT_INFO(pJniMethodEndWithReference) |
| 1807 | QUICK_ENTRY_POINT_INFO(pJniMethodEndWithReferenceSynchronized) |
| 1808 | QUICK_ENTRY_POINT_INFO(pQuickGenericJniTrampoline) |
| 1809 | QUICK_ENTRY_POINT_INFO(pLockObject) |
| 1810 | QUICK_ENTRY_POINT_INFO(pUnlockObject) |
| 1811 | QUICK_ENTRY_POINT_INFO(pCmpgDouble) |
| 1812 | QUICK_ENTRY_POINT_INFO(pCmpgFloat) |
| 1813 | QUICK_ENTRY_POINT_INFO(pCmplDouble) |
| 1814 | QUICK_ENTRY_POINT_INFO(pCmplFloat) |
| 1815 | QUICK_ENTRY_POINT_INFO(pFmod) |
| 1816 | QUICK_ENTRY_POINT_INFO(pSqrt) |
| 1817 | QUICK_ENTRY_POINT_INFO(pL2d) |
| 1818 | QUICK_ENTRY_POINT_INFO(pFmodf) |
| 1819 | QUICK_ENTRY_POINT_INFO(pL2f) |
| 1820 | QUICK_ENTRY_POINT_INFO(pD2iz) |
| 1821 | QUICK_ENTRY_POINT_INFO(pF2iz) |
| 1822 | QUICK_ENTRY_POINT_INFO(pIdivmod) |
| 1823 | QUICK_ENTRY_POINT_INFO(pD2l) |
| 1824 | QUICK_ENTRY_POINT_INFO(pF2l) |
| 1825 | QUICK_ENTRY_POINT_INFO(pLdiv) |
| 1826 | QUICK_ENTRY_POINT_INFO(pLmod) |
| 1827 | QUICK_ENTRY_POINT_INFO(pLmul) |
| 1828 | QUICK_ENTRY_POINT_INFO(pShlLong) |
| 1829 | QUICK_ENTRY_POINT_INFO(pShrLong) |
| 1830 | QUICK_ENTRY_POINT_INFO(pUshrLong) |
| 1831 | QUICK_ENTRY_POINT_INFO(pIndexOf) |
| 1832 | QUICK_ENTRY_POINT_INFO(pMemcmp16) |
| 1833 | QUICK_ENTRY_POINT_INFO(pStringCompareTo) |
| 1834 | QUICK_ENTRY_POINT_INFO(pMemcpy) |
| 1835 | QUICK_ENTRY_POINT_INFO(pQuickImtConflictTrampoline) |
| 1836 | QUICK_ENTRY_POINT_INFO(pQuickResolutionTrampoline) |
| 1837 | QUICK_ENTRY_POINT_INFO(pQuickToInterpreterBridge) |
| 1838 | QUICK_ENTRY_POINT_INFO(pInvokeDirectTrampolineWithAccessCheck) |
| 1839 | QUICK_ENTRY_POINT_INFO(pInvokeInterfaceTrampolineWithAccessCheck) |
| 1840 | QUICK_ENTRY_POINT_INFO(pInvokeStaticTrampolineWithAccessCheck) |
| 1841 | QUICK_ENTRY_POINT_INFO(pInvokeSuperTrampolineWithAccessCheck) |
| 1842 | QUICK_ENTRY_POINT_INFO(pInvokeVirtualTrampolineWithAccessCheck) |
| 1843 | QUICK_ENTRY_POINT_INFO(pCheckSuspend) |
| 1844 | QUICK_ENTRY_POINT_INFO(pTestSuspend) |
| 1845 | QUICK_ENTRY_POINT_INFO(pDeliverException) |
| 1846 | QUICK_ENTRY_POINT_INFO(pThrowArrayBounds) |
| 1847 | QUICK_ENTRY_POINT_INFO(pThrowDivZero) |
| 1848 | QUICK_ENTRY_POINT_INFO(pThrowNoSuchMethod) |
| 1849 | QUICK_ENTRY_POINT_INFO(pThrowNullPointer) |
| 1850 | QUICK_ENTRY_POINT_INFO(pThrowStackOverflow) |
| 1851 | #undef QUICK_ENTRY_POINT_INFO |
| 1852 | |
Elliott Hughes | 98e2017 | 2012-04-24 15:38:13 -0700 | [diff] [blame] | 1853 | os << offset; |
Elliott Hughes | 28fa76d | 2012-04-09 17:31:46 -0700 | [diff] [blame] | 1854 | } |
| 1855 | |
jeffhao | 94d6df4 | 2012-11-26 16:02:12 -0800 | [diff] [blame] | 1856 | void Thread::QuickDeliverException() { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1857 | // Get exception from thread. |
| 1858 | ThrowLocation throw_location; |
| 1859 | mirror::Throwable* exception = GetException(&throw_location); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1860 | CHECK(exception != nullptr); |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 1861 | // 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] | 1862 | // resolution. |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 1863 | ClearException(); |
Sebastien Hertz | fd3077e | 2014-04-23 10:32:43 +0200 | [diff] [blame] | 1864 | bool is_deoptimization = (exception == GetDeoptimizationException()); |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 1865 | if (kDebugExceptionDelivery) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1866 | if (!is_deoptimization) { |
| 1867 | mirror::String* msg = exception->GetDetailMessage(); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1868 | std::string str_msg(msg != nullptr ? msg->ToModifiedUtf8() : ""); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1869 | DumpStack(LOG(INFO) << "Delivering exception: " << PrettyTypeOf(exception) |
| 1870 | << ": " << str_msg << "\n"); |
| 1871 | } else { |
| 1872 | DumpStack(LOG(INFO) << "Deoptimizing: "); |
| 1873 | } |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 1874 | } |
Sebastien Hertz | fd3077e | 2014-04-23 10:32:43 +0200 | [diff] [blame] | 1875 | QuickExceptionHandler exception_handler(this, is_deoptimization); |
| 1876 | if (is_deoptimization) { |
| 1877 | exception_handler.DeoptimizeStack(); |
| 1878 | } else { |
| 1879 | exception_handler.FindCatch(throw_location, exception); |
| 1880 | } |
| 1881 | exception_handler.UpdateInstrumentationStack(); |
| 1882 | exception_handler.DoLongJump(); |
Ian Rogers | 9a8a888 | 2012-03-08 02:30:55 -0800 | [diff] [blame] | 1883 | LOG(FATAL) << "UNREACHABLE"; |
Shih-wei Liao | 1a18c8c | 2011-08-14 17:47:36 -0700 | [diff] [blame] | 1884 | } |
| 1885 | |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 1886 | Context* Thread::GetLongJumpContext() { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1887 | Context* result = tlsPtr_.long_jump_context; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1888 | if (result == nullptr) { |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 1889 | result = Context::Create(); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1890 | } else { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1891 | tlsPtr_.long_jump_context = nullptr; // Avoid context being shared. |
Mathieu Chartier | 6702243 | 2012-11-29 18:04:50 -0800 | [diff] [blame] | 1892 | result->Reset(); |
Shih-wei Liao | 1a18c8c | 2011-08-14 17:47:36 -0700 | [diff] [blame] | 1893 | } |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 1894 | return result; |
Shih-wei Liao | 1a18c8c | 2011-08-14 17:47:36 -0700 | [diff] [blame] | 1895 | } |
| 1896 | |
Ian Rogers | e0dcd46 | 2014-03-08 15:21:04 -0800 | [diff] [blame] | 1897 | struct CurrentMethodVisitor FINAL : public StackVisitor { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1898 | CurrentMethodVisitor(Thread* thread, Context* context) |
| 1899 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1900 | : StackVisitor(thread, context), this_object_(nullptr), method_(nullptr), dex_pc_(0) {} |
Ian Rogers | e0dcd46 | 2014-03-08 15:21:04 -0800 | [diff] [blame] | 1901 | bool VisitFrame() OVERRIDE SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1902 | mirror::ArtMethod* m = GetMethod(); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1903 | if (m->IsRuntimeMethod()) { |
| 1904 | // Continue if this is a runtime method. |
| 1905 | return true; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1906 | } |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1907 | if (context_ != nullptr) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1908 | this_object_ = GetThisObject(); |
| 1909 | } |
| 1910 | method_ = m; |
| 1911 | dex_pc_ = GetDexPc(); |
| 1912 | return false; |
| 1913 | } |
| 1914 | mirror::Object* this_object_; |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1915 | mirror::ArtMethod* method_; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1916 | uint32_t dex_pc_; |
| 1917 | }; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1918 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 1919 | mirror::ArtMethod* Thread::GetCurrentMethod(uint32_t* dex_pc) const { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1920 | CurrentMethodVisitor visitor(const_cast<Thread*>(this), nullptr); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1921 | visitor.WalkStack(false); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1922 | if (dex_pc != nullptr) { |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1923 | *dex_pc = visitor.dex_pc_; |
Elliott Hughes | 9fd66f5 | 2011-10-16 12:13:26 -0700 | [diff] [blame] | 1924 | } |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1925 | return visitor.method_; |
jeffhao | 33dc771 | 2011-11-09 17:54:24 -0800 | [diff] [blame] | 1926 | } |
| 1927 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1928 | ThrowLocation Thread::GetCurrentLocationForThrow() { |
| 1929 | Context* context = GetLongJumpContext(); |
| 1930 | CurrentMethodVisitor visitor(this, context); |
| 1931 | visitor.WalkStack(false); |
| 1932 | ReleaseLongJumpContext(context); |
| 1933 | return ThrowLocation(visitor.this_object_, visitor.method_, visitor.dex_pc_); |
| 1934 | } |
| 1935 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1936 | bool Thread::HoldsLock(mirror::Object* object) const { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1937 | if (object == nullptr) { |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 1938 | return false; |
| 1939 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1940 | return object->GetLockOwnerThreadId() == GetThreadId(); |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 1941 | } |
| 1942 | |
Ian Rogers | 40e3bac | 2012-11-20 00:09:14 -0800 | [diff] [blame] | 1943 | // RootVisitor parameters are: (const Object* obj, size_t vreg, const StackVisitor* visitor). |
| 1944 | template <typename RootVisitor> |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1945 | class ReferenceMapVisitor : public StackVisitor { |
Ian Rogers | d6b1f61 | 2011-09-27 13:38:14 -0700 | [diff] [blame] | 1946 | public: |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 1947 | ReferenceMapVisitor(Thread* thread, Context* context, const RootVisitor& visitor) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1948 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 1949 | : StackVisitor(thread, context), visitor_(visitor) {} |
Ian Rogers | d6b1f61 | 2011-09-27 13:38:14 -0700 | [diff] [blame] | 1950 | |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 1951 | bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Brian Carlstrom | 6a4be3a | 2011-10-20 16:34:03 -0700 | [diff] [blame] | 1952 | if (false) { |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1953 | LOG(INFO) << "Visiting stack roots in " << PrettyMethod(GetMethod()) |
Sebastien Hertz | 714f175 | 2014-04-28 15:03:08 +0200 | [diff] [blame] | 1954 | << StringPrintf("@ PC:%04x", GetDexPc()); |
Brian Carlstrom | 6a4be3a | 2011-10-20 16:34:03 -0700 | [diff] [blame] | 1955 | } |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1956 | ShadowFrame* shadow_frame = GetCurrentShadowFrame(); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1957 | if (shadow_frame != nullptr) { |
Sebastien Hertz | 714f175 | 2014-04-28 15:03:08 +0200 | [diff] [blame] | 1958 | VisitShadowFrame(shadow_frame); |
| 1959 | } else { |
| 1960 | VisitQuickFrame(); |
| 1961 | } |
| 1962 | return true; |
| 1963 | } |
| 1964 | |
| 1965 | void VisitShadowFrame(ShadowFrame* shadow_frame) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 1966 | mirror::ArtMethod* m = shadow_frame->GetMethod(); |
| 1967 | size_t num_regs = shadow_frame->NumberOfVRegs(); |
| 1968 | if (m->IsNative() || shadow_frame->HasReferenceArray()) { |
| 1969 | // SIRT for JNI or References for interpreter. |
| 1970 | for (size_t reg = 0; reg < num_regs; ++reg) { |
| 1971 | mirror::Object* ref = shadow_frame->GetVRegReference(reg); |
| 1972 | if (ref != nullptr) { |
| 1973 | mirror::Object* new_ref = ref; |
| 1974 | visitor_(&new_ref, reg, this); |
| 1975 | if (new_ref != ref) { |
| 1976 | shadow_frame->SetVRegReference(reg, new_ref); |
| 1977 | } |
| 1978 | } |
| 1979 | } |
| 1980 | } else { |
| 1981 | // Java method. |
| 1982 | // Portable path use DexGcMap and store in Method.native_gc_map_. |
| 1983 | const uint8_t* gc_map = m->GetNativeGcMap(); |
| 1984 | CHECK(gc_map != nullptr) << PrettyMethod(m); |
| 1985 | verifier::DexPcToReferenceMap dex_gc_map(gc_map); |
| 1986 | uint32_t dex_pc = shadow_frame->GetDexPC(); |
| 1987 | const uint8_t* reg_bitmap = dex_gc_map.FindBitMap(dex_pc); |
| 1988 | DCHECK(reg_bitmap != nullptr); |
| 1989 | num_regs = std::min(dex_gc_map.RegWidth() * 8, num_regs); |
| 1990 | for (size_t reg = 0; reg < num_regs; ++reg) { |
| 1991 | if (TestBitmap(reg, reg_bitmap)) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1992 | mirror::Object* ref = shadow_frame->GetVRegReference(reg); |
Mathieu Chartier | 423d2a3 | 2013-09-12 17:33:56 -0700 | [diff] [blame] | 1993 | if (ref != nullptr) { |
Mathieu Chartier | 815873e | 2014-02-13 18:02:13 -0800 | [diff] [blame] | 1994 | mirror::Object* new_ref = ref; |
| 1995 | visitor_(&new_ref, reg, this); |
Mathieu Chartier | 423d2a3 | 2013-09-12 17:33:56 -0700 | [diff] [blame] | 1996 | if (new_ref != ref) { |
Sebastien Hertz | 714f175 | 2014-04-28 15:03:08 +0200 | [diff] [blame] | 1997 | shadow_frame->SetVRegReference(reg, new_ref); |
TDYa127 | ce4cc0d | 2012-11-18 16:59:53 -0800 | [diff] [blame] | 1998 | } |
| 1999 | } |
| 2000 | } |
| 2001 | } |
Sebastien Hertz | 714f175 | 2014-04-28 15:03:08 +0200 | [diff] [blame] | 2002 | } |
| 2003 | } |
| 2004 | |
| 2005 | private: |
| 2006 | void VisitQuickFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 2007 | mirror::ArtMethod* m = GetMethod(); |
| 2008 | // Process register map (which native and runtime methods don't have) |
| 2009 | if (!m->IsNative() && !m->IsRuntimeMethod() && !m->IsProxyMethod()) { |
| 2010 | const uint8_t* native_gc_map = m->GetNativeGcMap(); |
| 2011 | CHECK(native_gc_map != nullptr) << PrettyMethod(m); |
| 2012 | mh_.ChangeMethod(m); |
| 2013 | const DexFile::CodeItem* code_item = mh_.GetCodeItem(); |
| 2014 | DCHECK(code_item != nullptr) << PrettyMethod(m); // Can't be nullptr or how would we compile its instructions? |
| 2015 | NativePcOffsetToReferenceMap map(native_gc_map); |
| 2016 | size_t num_regs = std::min(map.RegWidth() * 8, |
| 2017 | static_cast<size_t>(code_item->registers_size_)); |
| 2018 | if (num_regs > 0) { |
| 2019 | const uint8_t* reg_bitmap = map.FindBitMap(GetNativePcOffset()); |
| 2020 | DCHECK(reg_bitmap != nullptr); |
| 2021 | const VmapTable vmap_table(m->GetVmapTable()); |
| 2022 | uint32_t core_spills = m->GetCoreSpillMask(); |
| 2023 | uint32_t fp_spills = m->GetFpSpillMask(); |
| 2024 | size_t frame_size = m->GetFrameSizeInBytes(); |
| 2025 | // For all dex registers in the bitmap |
| 2026 | mirror::ArtMethod** cur_quick_frame = GetCurrentQuickFrame(); |
| 2027 | DCHECK(cur_quick_frame != nullptr); |
| 2028 | for (size_t reg = 0; reg < num_regs; ++reg) { |
| 2029 | // Does this register hold a reference? |
| 2030 | if (TestBitmap(reg, reg_bitmap)) { |
| 2031 | uint32_t vmap_offset; |
| 2032 | if (vmap_table.IsInContext(reg, kReferenceVReg, &vmap_offset)) { |
| 2033 | int vmap_reg = vmap_table.ComputeRegister(core_spills, vmap_offset, kReferenceVReg); |
| 2034 | // This is sound as spilled GPRs will be word sized (ie 32 or 64bit). |
| 2035 | mirror::Object** ref_addr = reinterpret_cast<mirror::Object**>(GetGPRAddress(vmap_reg)); |
| 2036 | if (*ref_addr != nullptr) { |
| 2037 | visitor_(ref_addr, reg, this); |
| 2038 | } |
| 2039 | } else { |
| 2040 | StackReference<mirror::Object>* ref_addr = |
| 2041 | reinterpret_cast<StackReference<mirror::Object>*>( |
| 2042 | GetVRegAddr(cur_quick_frame, code_item, core_spills, fp_spills, frame_size, |
| 2043 | reg)); |
| 2044 | mirror::Object* ref = ref_addr->AsMirrorPtr(); |
| 2045 | if (ref != nullptr) { |
| 2046 | mirror::Object* new_ref = ref; |
| 2047 | visitor_(&new_ref, reg, this); |
| 2048 | if (ref != new_ref) { |
| 2049 | ref_addr->Assign(new_ref); |
Mathieu Chartier | 423d2a3 | 2013-09-12 17:33:56 -0700 | [diff] [blame] | 2050 | } |
Ian Rogers | 0c7abda | 2012-09-19 13:33:42 -0700 | [diff] [blame] | 2051 | } |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2052 | } |
Shih-wei Liao | 4f894e3 | 2011-09-27 21:33:19 -0700 | [diff] [blame] | 2053 | } |
Ian Rogers | d6b1f61 | 2011-09-27 13:38:14 -0700 | [diff] [blame] | 2054 | } |
| 2055 | } |
| 2056 | } |
Ian Rogers | d6b1f61 | 2011-09-27 13:38:14 -0700 | [diff] [blame] | 2057 | } |
| 2058 | |
Mathieu Chartier | 815873e | 2014-02-13 18:02:13 -0800 | [diff] [blame] | 2059 | static bool TestBitmap(size_t reg, const uint8_t* reg_vector) { |
| 2060 | return ((reg_vector[reg / kBitsPerByte] >> (reg % kBitsPerByte)) & 0x01) != 0; |
Ian Rogers | d6b1f61 | 2011-09-27 13:38:14 -0700 | [diff] [blame] | 2061 | } |
| 2062 | |
Mathieu Chartier | 6f1c949 | 2012-10-15 12:08:41 -0700 | [diff] [blame] | 2063 | // Visitor for when we visit a root. |
Ian Rogers | 40e3bac | 2012-11-20 00:09:14 -0800 | [diff] [blame] | 2064 | const RootVisitor& visitor_; |
Mathieu Chartier | 6f1c949 | 2012-10-15 12:08:41 -0700 | [diff] [blame] | 2065 | |
Ian Rogers | 0c7abda | 2012-09-19 13:33:42 -0700 | [diff] [blame] | 2066 | // A method helper we keep around to avoid dex file/cache re-computations. |
| 2067 | MethodHelper mh_; |
Ian Rogers | d6b1f61 | 2011-09-27 13:38:14 -0700 | [diff] [blame] | 2068 | }; |
| 2069 | |
Mathieu Chartier | 6f1c949 | 2012-10-15 12:08:41 -0700 | [diff] [blame] | 2070 | class RootCallbackVisitor { |
| 2071 | public: |
Mathieu Chartier | 83c8ee0 | 2014-01-28 14:50:23 -0800 | [diff] [blame] | 2072 | RootCallbackVisitor(RootCallback* callback, void* arg, uint32_t tid) |
| 2073 | : callback_(callback), arg_(arg), tid_(tid) {} |
Mathieu Chartier | 6f1c949 | 2012-10-15 12:08:41 -0700 | [diff] [blame] | 2074 | |
Mathieu Chartier | 815873e | 2014-02-13 18:02:13 -0800 | [diff] [blame] | 2075 | void operator()(mirror::Object** obj, size_t, const StackVisitor*) const { |
| 2076 | callback_(obj, arg_, tid_, kRootJavaFrame); |
Mathieu Chartier | 6f1c949 | 2012-10-15 12:08:41 -0700 | [diff] [blame] | 2077 | } |
| 2078 | |
| 2079 | private: |
Mathieu Chartier | 83c8ee0 | 2014-01-28 14:50:23 -0800 | [diff] [blame] | 2080 | RootCallback* const callback_; |
Ian Rogers | 40e3bac | 2012-11-20 00:09:14 -0800 | [diff] [blame] | 2081 | void* const arg_; |
Mathieu Chartier | 83c8ee0 | 2014-01-28 14:50:23 -0800 | [diff] [blame] | 2082 | const uint32_t tid_; |
Mathieu Chartier | 6f1c949 | 2012-10-15 12:08:41 -0700 | [diff] [blame] | 2083 | }; |
| 2084 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2085 | void Thread::SetClassLoaderOverride(mirror::ClassLoader* class_loader_override) { |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 2086 | VerifyObject(class_loader_override); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2087 | tlsPtr_.class_loader_override = class_loader_override; |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2088 | } |
| 2089 | |
Mathieu Chartier | 83c8ee0 | 2014-01-28 14:50:23 -0800 | [diff] [blame] | 2090 | void Thread::VisitRoots(RootCallback* visitor, void* arg) { |
| 2091 | uint32_t thread_id = GetThreadId(); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2092 | if (tlsPtr_.opeer != nullptr) { |
| 2093 | visitor(&tlsPtr_.opeer, arg, thread_id, kRootThreadObject); |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 2094 | } |
Sebastien Hertz | fd3077e | 2014-04-23 10:32:43 +0200 | [diff] [blame] | 2095 | if (tlsPtr_.exception != nullptr && tlsPtr_.exception != GetDeoptimizationException()) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2096 | visitor(reinterpret_cast<mirror::Object**>(&tlsPtr_.exception), arg, thread_id, kRootNativeStack); |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 2097 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2098 | tlsPtr_.throw_location.VisitRoots(visitor, arg); |
| 2099 | if (tlsPtr_.class_loader_override != nullptr) { |
| 2100 | visitor(reinterpret_cast<mirror::Object**>(&tlsPtr_.class_loader_override), arg, thread_id, |
Mathieu Chartier | 815873e | 2014-02-13 18:02:13 -0800 | [diff] [blame] | 2101 | kRootNativeStack); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2102 | } |
Mathieu Chartier | 43d8bb8 | 2014-04-03 09:57:36 -0700 | [diff] [blame] | 2103 | if (tlsPtr_.monitor_enter_object != nullptr) { |
| 2104 | visitor(&tlsPtr_.monitor_enter_object, arg, thread_id, kRootNativeStack); |
| 2105 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2106 | tlsPtr_.jni_env->locals.VisitRoots(visitor, arg, thread_id, kRootJNILocal); |
| 2107 | tlsPtr_.jni_env->monitors.VisitRoots(visitor, arg, thread_id, kRootJNIMonitor); |
Mathieu Chartier | 89bb144 | 2014-02-12 10:06:23 -0800 | [diff] [blame] | 2108 | SirtVisitRoots(visitor, arg, thread_id); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2109 | if (tlsPtr_.debug_invoke_req != nullptr) { |
| 2110 | tlsPtr_.debug_invoke_req->VisitRoots(visitor, arg, thread_id, kRootDebugger); |
Mathieu Chartier | 3b05e9b | 2014-03-25 09:29:43 -0700 | [diff] [blame] | 2111 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2112 | if (tlsPtr_.single_step_control != nullptr) { |
| 2113 | tlsPtr_.single_step_control->VisitRoots(visitor, arg, thread_id, kRootDebugger); |
Mathieu Chartier | 3b05e9b | 2014-03-25 09:29:43 -0700 | [diff] [blame] | 2114 | } |
Sebastien Hertz | 714f175 | 2014-04-28 15:03:08 +0200 | [diff] [blame] | 2115 | if (tlsPtr_.deoptimization_shadow_frame != nullptr) { |
| 2116 | RootCallbackVisitor visitorToCallback(visitor, arg, thread_id); |
| 2117 | ReferenceMapVisitor<RootCallbackVisitor> mapper(this, nullptr, visitorToCallback); |
| 2118 | for (ShadowFrame* shadow_frame = tlsPtr_.deoptimization_shadow_frame; shadow_frame != nullptr; |
| 2119 | shadow_frame = shadow_frame->GetLink()) { |
| 2120 | mapper.VisitShadowFrame(shadow_frame); |
| 2121 | } |
| 2122 | } |
Ian Rogers | d6b1f61 | 2011-09-27 13:38:14 -0700 | [diff] [blame] | 2123 | // Visit roots on this thread's stack |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2124 | Context* context = GetLongJumpContext(); |
Mathieu Chartier | 83c8ee0 | 2014-01-28 14:50:23 -0800 | [diff] [blame] | 2125 | RootCallbackVisitor visitorToCallback(visitor, arg, thread_id); |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 2126 | ReferenceMapVisitor<RootCallbackVisitor> mapper(this, context, visitorToCallback); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2127 | mapper.WalkStack(); |
| 2128 | ReleaseLongJumpContext(context); |
Mathieu Chartier | 423d2a3 | 2013-09-12 17:33:56 -0700 | [diff] [blame] | 2129 | for (instrumentation::InstrumentationStackFrame& frame : *GetInstrumentationStack()) { |
| 2130 | if (frame.this_object_ != nullptr) { |
Mathieu Chartier | 815873e | 2014-02-13 18:02:13 -0800 | [diff] [blame] | 2131 | visitor(&frame.this_object_, arg, thread_id, kRootJavaFrame); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2132 | } |
Mathieu Chartier | 423d2a3 | 2013-09-12 17:33:56 -0700 | [diff] [blame] | 2133 | DCHECK(frame.method_ != nullptr); |
Mathieu Chartier | 815873e | 2014-02-13 18:02:13 -0800 | [diff] [blame] | 2134 | visitor(reinterpret_cast<mirror::Object**>(&frame.method_), arg, thread_id, kRootJavaFrame); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2135 | } |
Elliott Hughes | 410c0c8 | 2011-09-01 17:58:25 -0700 | [diff] [blame] | 2136 | } |
| 2137 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 2138 | static void VerifyRoot(mirror::Object** root, void* /*arg*/, uint32_t /*thread_id*/, |
| 2139 | RootType /*root_type*/) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 2140 | VerifyObject(*root); |
jeffhao | 2504552 | 2012-03-13 19:34:37 -0700 | [diff] [blame] | 2141 | } |
| 2142 | |
Ian Rogers | 04d7aa9 | 2013-03-16 14:29:17 -0700 | [diff] [blame] | 2143 | void Thread::VerifyStackImpl() { |
jeffhao | e66ac79 | 2012-03-19 16:08:46 -0700 | [diff] [blame] | 2144 | UniquePtr<Context> context(Context::Create()); |
Mathieu Chartier | 89bb144 | 2014-02-12 10:06:23 -0800 | [diff] [blame] | 2145 | RootCallbackVisitor visitorToCallback(VerifyRoot, Runtime::Current()->GetHeap(), GetThreadId()); |
Ian Rogers | 04d7aa9 | 2013-03-16 14:29:17 -0700 | [diff] [blame] | 2146 | ReferenceMapVisitor<RootCallbackVisitor> mapper(this, context.get(), visitorToCallback); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2147 | mapper.WalkStack(); |
jeffhao | 2504552 | 2012-03-13 19:34:37 -0700 | [diff] [blame] | 2148 | } |
jeffhao | 2504552 | 2012-03-13 19:34:37 -0700 | [diff] [blame] | 2149 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2150 | // Set the stack end to that to be used during a stack overflow |
| 2151 | void Thread::SetStackEndForStackOverflow() { |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 2152 | // During stack overflow we allow use of the full stack. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2153 | if (tlsPtr_.stack_end == tlsPtr_.stack_begin) { |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 2154 | // However, we seem to have already extended to use the full stack. |
| 2155 | LOG(ERROR) << "Need to increase kStackOverflowReservedBytes (currently " |
| 2156 | << kStackOverflowReservedBytes << ")?"; |
| 2157 | DumpStack(LOG(ERROR)); |
| 2158 | LOG(FATAL) << "Recursive stack overflow."; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2159 | } |
| 2160 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2161 | tlsPtr_.stack_end = tlsPtr_.stack_begin; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2162 | } |
| 2163 | |
Mathieu Chartier | e6da9af | 2013-12-16 11:54:42 -0800 | [diff] [blame] | 2164 | void Thread::SetTlab(byte* start, byte* end) { |
Mathieu Chartier | 692fafd | 2013-11-29 17:24:40 -0800 | [diff] [blame] | 2165 | DCHECK_LE(start, end); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2166 | tlsPtr_.thread_local_start = start; |
| 2167 | tlsPtr_.thread_local_pos = tlsPtr_.thread_local_start; |
| 2168 | tlsPtr_.thread_local_end = end; |
| 2169 | tlsPtr_.thread_local_objects = 0; |
Mathieu Chartier | 692fafd | 2013-11-29 17:24:40 -0800 | [diff] [blame] | 2170 | } |
| 2171 | |
Hiroshi Yamauchi | c93c530 | 2014-03-20 16:15:37 -0700 | [diff] [blame] | 2172 | bool Thread::HasTlab() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2173 | bool has_tlab = tlsPtr_.thread_local_pos != nullptr; |
Hiroshi Yamauchi | c93c530 | 2014-03-20 16:15:37 -0700 | [diff] [blame] | 2174 | if (has_tlab) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2175 | DCHECK(tlsPtr_.thread_local_start != nullptr && tlsPtr_.thread_local_end != nullptr); |
Hiroshi Yamauchi | c93c530 | 2014-03-20 16:15:37 -0700 | [diff] [blame] | 2176 | } else { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2177 | DCHECK(tlsPtr_.thread_local_start == nullptr && tlsPtr_.thread_local_end == nullptr); |
Hiroshi Yamauchi | c93c530 | 2014-03-20 16:15:37 -0700 | [diff] [blame] | 2178 | } |
| 2179 | return has_tlab; |
| 2180 | } |
| 2181 | |
Elliott Hughes | 330304d | 2011-08-12 14:28:05 -0700 | [diff] [blame] | 2182 | std::ostream& operator<<(std::ostream& os, const Thread& thread) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2183 | thread.ShortDump(os); |
Elliott Hughes | 330304d | 2011-08-12 14:28:05 -0700 | [diff] [blame] | 2184 | return os; |
| 2185 | } |
| 2186 | |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 2187 | } // namespace art |