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 | |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 17 | #include "thread.h" |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 18 | |
Ian Rogers | b033c75 | 2011-07-20 12:22:35 -0700 | [diff] [blame] | 19 | #include <pthread.h> |
Elliott Hughes | 2acf36d | 2012-04-17 13:30:13 -0700 | [diff] [blame] | 20 | #include <signal.h> |
Brian Carlstrom | dbf05b7 | 2011-12-15 00:55:24 -0800 | [diff] [blame] | 21 | #include <sys/resource.h> |
| 22 | #include <sys/time.h> |
Elliott Hughes | a095764 | 2011-09-02 14:27:33 -0700 | [diff] [blame] | 23 | |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 24 | #include <algorithm> |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 25 | #include <bitset> |
Elliott Hughes | eb4f614 | 2011-07-15 17:43:51 -0700 | [diff] [blame] | 26 | #include <cerrno> |
Elliott Hughes | a095764 | 2011-09-02 14:27:33 -0700 | [diff] [blame] | 27 | #include <iostream> |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 28 | #include <list> |
Ian Rogers | c7dd295 | 2014-10-21 23:31:19 -0700 | [diff] [blame] | 29 | #include <sstream> |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 30 | |
Andreas Gampe | 46ee31b | 2016-12-14 10:11:49 -0800 | [diff] [blame] | 31 | #include "android-base/stringprintf.h" |
| 32 | |
Ian Rogers | 166db04 | 2013-07-26 12:05:57 -0700 | [diff] [blame] | 33 | #include "arch/context.h" |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 34 | #include "art_field-inl.h" |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 35 | #include "art_method-inl.h" |
Vladimir Marko | 80afd02 | 2015-05-19 18:08:00 +0100 | [diff] [blame] | 36 | #include "base/bit_utils.h" |
Evgenii Stepanov | 1e13374 | 2015-05-20 12:30:59 -0700 | [diff] [blame] | 37 | #include "base/memory_tool.h" |
Elliott Hughes | 76b6167 | 2012-12-12 17:47:30 -0800 | [diff] [blame] | 38 | #include "base/mutex.h" |
Hiroshi Yamauchi | 2cd334a | 2015-01-09 14:03:35 -0800 | [diff] [blame] | 39 | #include "base/timing_logger.h" |
Ian Rogers | c7dd295 | 2014-10-21 23:31:19 -0700 | [diff] [blame] | 40 | #include "base/to_str.h" |
Mathieu Chartier | 32ce2ad | 2016-03-04 14:58:03 -0800 | [diff] [blame] | 41 | #include "base/systrace.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 42 | #include "class_linker-inl.h" |
Elliott Hughes | 46e251b | 2012-05-22 15:10:45 -0700 | [diff] [blame] | 43 | #include "debugger.h" |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 44 | #include "dex_file-inl.h" |
David Sehr | 9323e6e | 2016-09-13 08:58:35 -0700 | [diff] [blame] | 45 | #include "dex_file_annotations.h" |
Ian Rogers | 7655f29 | 2013-07-29 11:07:13 -0700 | [diff] [blame] | 46 | #include "entrypoints/entrypoint_utils.h" |
Mathieu Chartier | d889178 | 2014-03-02 13:28:37 -0800 | [diff] [blame] | 47 | #include "entrypoints/quick/quick_alloc_entrypoints.h" |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 48 | #include "gc/accounting/card_table-inl.h" |
Roland Levillain | 1fbd452 | 2016-03-22 15:52:22 +0000 | [diff] [blame] | 49 | #include "gc/accounting/heap_bitmap-inl.h" |
Ian Rogers | e63db27 | 2014-07-15 15:36:11 -0700 | [diff] [blame] | 50 | #include "gc/allocator/rosalloc.h" |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 51 | #include "gc/heap.h" |
Mathieu Chartier | d5f3f32 | 2016-03-21 14:05:56 -0700 | [diff] [blame] | 52 | #include "gc/space/space-inl.h" |
Ian Rogers | 22d5e73 | 2014-07-15 22:23:51 -0700 | [diff] [blame] | 53 | #include "handle_scope-inl.h" |
Mathieu Chartier | c56057e | 2014-05-04 13:18:58 -0700 | [diff] [blame] | 54 | #include "indirect_reference_table-inl.h" |
Elliott Hughes | c5f7c91 | 2011-08-18 14:00:42 -0700 | [diff] [blame] | 55 | #include "jni_internal.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 56 | #include "mirror/class_loader.h" |
Ian Rogers | 22d5e73 | 2014-07-15 22:23:51 -0700 | [diff] [blame] | 57 | #include "mirror/class-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 58 | #include "mirror/object_array-inl.h" |
| 59 | #include "mirror/stack_trace_element.h" |
Elliott Hughes | 8e4aac5 | 2011-09-26 17:03:36 -0700 | [diff] [blame] | 60 | #include "monitor.h" |
Andreas Gampe | 5dd44d0 | 2016-08-02 17:20:03 -0700 | [diff] [blame] | 61 | #include "native_stack_dump.h" |
Mingyao Yang | f711f2c | 2016-05-23 12:29:39 -0700 | [diff] [blame] | 62 | #include "nth_caller_visitor.h" |
Nicolas Geoffray | 524e7ea | 2015-10-16 17:13:34 +0100 | [diff] [blame] | 63 | #include "oat_quick_method_header.h" |
Mathieu Chartier | 0795f23 | 2016-09-27 18:43:30 -0700 | [diff] [blame] | 64 | #include "obj_ptr-inl.h" |
Ian Rogers | 22d5e73 | 2014-07-15 22:23:51 -0700 | [diff] [blame] | 65 | #include "object_lock.h" |
Sebastien Hertz | fd3077e | 2014-04-23 10:32:43 +0200 | [diff] [blame] | 66 | #include "quick_exception_handler.h" |
Vladimir Marko | 7624d25 | 2014-05-02 14:40:15 +0100 | [diff] [blame] | 67 | #include "quick/quick_method_frame_info.h" |
Andreas Gampe | 202f85a | 2017-02-06 10:23:26 -0800 | [diff] [blame] | 68 | #include "read_barrier-inl.h" |
Jesse Wilson | 9a6bae8 | 2011-11-14 14:57:30 -0500 | [diff] [blame] | 69 | #include "reflection.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 70 | #include "runtime.h" |
Andreas Gampe | ac30fa2 | 2017-01-18 21:02:36 -0800 | [diff] [blame] | 71 | #include "runtime_callbacks.h" |
Mathieu Chartier | 0795f23 | 2016-09-27 18:43:30 -0700 | [diff] [blame] | 72 | #include "scoped_thread_state_change-inl.h" |
Elliott Hughes | 46e251b | 2012-05-22 15:10:45 -0700 | [diff] [blame] | 73 | #include "ScopedLocalRef.h" |
Anwar Ghuloum | 3c539ff | 2013-06-20 08:58:23 -0700 | [diff] [blame] | 74 | #include "ScopedUtfChars.h" |
Elliott Hughes | 68e7652 | 2011-10-05 13:22:16 -0700 | [diff] [blame] | 75 | #include "stack.h" |
Nicolas Geoffray | 6bc4374 | 2015-10-12 18:11:10 +0100 | [diff] [blame] | 76 | #include "stack_map.h" |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 77 | #include "thread_list.h" |
Ian Rogers | 22d5e73 | 2014-07-15 22:23:51 -0700 | [diff] [blame] | 78 | #include "thread-inl.h" |
Elliott Hughes | a095764 | 2011-09-02 14:27:33 -0700 | [diff] [blame] | 79 | #include "utils.h" |
Mathieu Chartier | 12d625f | 2015-03-13 11:33:37 -0700 | [diff] [blame] | 80 | #include "verifier/method_verifier.h" |
Andreas Gampe | 90b936d | 2017-01-31 08:58:55 -0800 | [diff] [blame] | 81 | #include "verify_object.h" |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 82 | #include "well_known_classes.h" |
buzbee | 1452bee | 2015-03-06 14:43:04 -0800 | [diff] [blame] | 83 | #include "interpreter/interpreter.h" |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 84 | |
Yu Li | eac4424 | 2015-06-29 10:50:03 +0800 | [diff] [blame] | 85 | #if ART_USE_FUTEXES |
| 86 | #include "linux/futex.h" |
| 87 | #include "sys/syscall.h" |
| 88 | #ifndef SYS_futex |
| 89 | #define SYS_futex __NR_futex |
| 90 | #endif |
| 91 | #endif // ART_USE_FUTEXES |
| 92 | |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 93 | namespace art { |
| 94 | |
Andreas Gampe | 46ee31b | 2016-12-14 10:11:49 -0800 | [diff] [blame] | 95 | using android::base::StringAppendV; |
| 96 | using android::base::StringPrintf; |
| 97 | |
Mingyao Yang | f711f2c | 2016-05-23 12:29:39 -0700 | [diff] [blame] | 98 | extern "C" NO_RETURN void artDeoptimize(Thread* self); |
| 99 | |
Ian Rogers | 0878d65 | 2013-04-18 17:38:35 -0700 | [diff] [blame] | 100 | bool Thread::is_started_ = false; |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 101 | pthread_key_t Thread::pthread_key_self_; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 102 | ConditionVariable* Thread::resume_cond_ = nullptr; |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 103 | const size_t Thread::kStackOverflowImplicitCheckSize = GetStackOverflowReservedBytes(kRuntimeISA); |
Calin Juravle | b2771b4 | 2016-04-07 17:09:25 +0100 | [diff] [blame] | 104 | bool (*Thread::is_sensitive_thread_hook_)() = nullptr; |
Calin Juravle | 97cbc92 | 2016-04-15 16:16:35 +0100 | [diff] [blame] | 105 | Thread* Thread::jit_sensitive_thread_ = nullptr; |
Calin Juravle | b2771b4 | 2016-04-07 17:09:25 +0100 | [diff] [blame] | 106 | |
Mathieu Chartier | b0026b4 | 2016-03-31 15:05:45 -0700 | [diff] [blame] | 107 | static constexpr bool kVerifyImageObjectsMarked = kIsDebugBuild; |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 108 | |
Evgenii Stepanov | 1e13374 | 2015-05-20 12:30:59 -0700 | [diff] [blame] | 109 | // For implicit overflow checks we reserve an extra piece of memory at the bottom |
| 110 | // of the stack (lowest memory). The higher portion of the memory |
| 111 | // is protected against reads and the lower is available for use while |
| 112 | // throwing the StackOverflow exception. |
| 113 | constexpr size_t kStackOverflowProtectedSize = 4 * kMemoryToolStackGuardSizeScale * KB; |
| 114 | |
Elliott Hughes | 7dc5166 | 2012-05-16 14:48:43 -0700 | [diff] [blame] | 115 | static const char* kThreadNameDuringStartup = "<native thread without managed peer>"; |
| 116 | |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 117 | void Thread::InitCardTable() { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 118 | tlsPtr_.card_table = Runtime::Current()->GetHeap()->GetCardTable()->GetBiasedBegin(); |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 119 | } |
| 120 | |
Elliott Hughes | 3ea0f42 | 2012-04-16 17:01:43 -0700 | [diff] [blame] | 121 | static void UnimplementedEntryPoint() { |
| 122 | UNIMPLEMENTED(FATAL); |
| 123 | } |
| 124 | |
Andreas Gampe | 3cfa4d0 | 2015-10-06 17:04:01 -0700 | [diff] [blame] | 125 | void InitEntryPoints(JniEntryPoints* jpoints, QuickEntryPoints* qpoints); |
Mathieu Chartier | fe814e8 | 2016-11-09 14:32:49 -0800 | [diff] [blame] | 126 | void UpdateReadBarrierEntrypoints(QuickEntryPoints* qpoints, bool is_marking); |
| 127 | |
| 128 | void Thread::SetIsGcMarkingAndUpdateEntrypoints(bool is_marking) { |
| 129 | CHECK(kUseReadBarrier); |
| 130 | tls32_.is_gc_marking = is_marking; |
| 131 | UpdateReadBarrierEntrypoints(&tlsPtr_.quick_entrypoints, is_marking); |
Mathieu Chartier | 5ace201 | 2016-11-30 10:15:41 -0800 | [diff] [blame] | 132 | ResetQuickAllocEntryPointsForThread(is_marking); |
Mathieu Chartier | fe814e8 | 2016-11-09 14:32:49 -0800 | [diff] [blame] | 133 | } |
Ian Rogers | 7655f29 | 2013-07-29 11:07:13 -0700 | [diff] [blame] | 134 | |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 135 | void Thread::InitTlsEntryPoints() { |
Elliott Hughes | 3ea0f42 | 2012-04-16 17:01:43 -0700 | [diff] [blame] | 136 | // Insert a placeholder so we can easily tell if we call an unimplemented entry point. |
Andreas Gampe | 3cfa4d0 | 2015-10-06 17:04:01 -0700 | [diff] [blame] | 137 | uintptr_t* begin = reinterpret_cast<uintptr_t*>(&tlsPtr_.jni_entrypoints); |
Mathieu Chartier | 5ace201 | 2016-11-30 10:15:41 -0800 | [diff] [blame] | 138 | uintptr_t* end = reinterpret_cast<uintptr_t*>( |
| 139 | reinterpret_cast<uint8_t*>(&tlsPtr_.quick_entrypoints) + sizeof(tlsPtr_.quick_entrypoints)); |
Ian Rogers | 7655f29 | 2013-07-29 11:07:13 -0700 | [diff] [blame] | 140 | for (uintptr_t* it = begin; it != end; ++it) { |
| 141 | *it = reinterpret_cast<uintptr_t>(UnimplementedEntryPoint); |
| 142 | } |
Andreas Gampe | 3cfa4d0 | 2015-10-06 17:04:01 -0700 | [diff] [blame] | 143 | InitEntryPoints(&tlsPtr_.jni_entrypoints, &tlsPtr_.quick_entrypoints); |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 144 | } |
| 145 | |
Mathieu Chartier | 5ace201 | 2016-11-30 10:15:41 -0800 | [diff] [blame] | 146 | void Thread::ResetQuickAllocEntryPointsForThread(bool is_marking) { |
| 147 | if (kUseReadBarrier && kRuntimeISA != kX86_64) { |
| 148 | // Allocation entrypoint switching is currently only implemented for X86_64. |
| 149 | is_marking = true; |
| 150 | } |
| 151 | ResetQuickAllocEntryPoints(&tlsPtr_.quick_entrypoints, is_marking); |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 152 | } |
| 153 | |
Sebastien Hertz | 0747466 | 2015-08-25 15:12:33 +0000 | [diff] [blame] | 154 | class DeoptimizationContextRecord { |
Sebastien Hertz | f795869 | 2015-06-09 14:09:14 +0200 | [diff] [blame] | 155 | public: |
Nicolas Geoffray | 73be1e8 | 2015-09-17 15:22:56 +0100 | [diff] [blame] | 156 | DeoptimizationContextRecord(const JValue& ret_val, |
| 157 | bool is_reference, |
| 158 | bool from_code, |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 159 | ObjPtr<mirror::Throwable> pending_exception, |
Sebastien Hertz | 0747466 | 2015-08-25 15:12:33 +0000 | [diff] [blame] | 160 | DeoptimizationContextRecord* link) |
Nicolas Geoffray | 73be1e8 | 2015-09-17 15:22:56 +0100 | [diff] [blame] | 161 | : ret_val_(ret_val), |
| 162 | is_reference_(is_reference), |
| 163 | from_code_(from_code), |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 164 | pending_exception_(pending_exception.Ptr()), |
Sebastien Hertz | 0747466 | 2015-08-25 15:12:33 +0000 | [diff] [blame] | 165 | link_(link) {} |
Sebastien Hertz | f795869 | 2015-06-09 14:09:14 +0200 | [diff] [blame] | 166 | |
| 167 | JValue GetReturnValue() const { return ret_val_; } |
| 168 | bool IsReference() const { return is_reference_; } |
Nicolas Geoffray | 73be1e8 | 2015-09-17 15:22:56 +0100 | [diff] [blame] | 169 | bool GetFromCode() const { return from_code_; } |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 170 | ObjPtr<mirror::Throwable> GetPendingException() const { return pending_exception_; } |
Sebastien Hertz | 0747466 | 2015-08-25 15:12:33 +0000 | [diff] [blame] | 171 | DeoptimizationContextRecord* GetLink() const { return link_; } |
| 172 | mirror::Object** GetReturnValueAsGCRoot() { |
Sebastien Hertz | f795869 | 2015-06-09 14:09:14 +0200 | [diff] [blame] | 173 | DCHECK(is_reference_); |
| 174 | return ret_val_.GetGCRoot(); |
| 175 | } |
Sebastien Hertz | 0747466 | 2015-08-25 15:12:33 +0000 | [diff] [blame] | 176 | mirror::Object** GetPendingExceptionAsGCRoot() { |
| 177 | return reinterpret_cast<mirror::Object**>(&pending_exception_); |
| 178 | } |
Sebastien Hertz | f795869 | 2015-06-09 14:09:14 +0200 | [diff] [blame] | 179 | |
| 180 | private: |
Sebastien Hertz | 0747466 | 2015-08-25 15:12:33 +0000 | [diff] [blame] | 181 | // The value returned by the method at the top of the stack before deoptimization. |
Sebastien Hertz | f795869 | 2015-06-09 14:09:14 +0200 | [diff] [blame] | 182 | JValue ret_val_; |
Sebastien Hertz | 54b6248 | 2015-08-20 12:07:57 +0200 | [diff] [blame] | 183 | |
Sebastien Hertz | 0747466 | 2015-08-25 15:12:33 +0000 | [diff] [blame] | 184 | // Indicates whether the returned value is a reference. If so, the GC will visit it. |
| 185 | const bool is_reference_; |
| 186 | |
Nicolas Geoffray | 73be1e8 | 2015-09-17 15:22:56 +0100 | [diff] [blame] | 187 | // Whether the context was created from an explicit deoptimization in the code. |
| 188 | const bool from_code_; |
| 189 | |
Sebastien Hertz | 0747466 | 2015-08-25 15:12:33 +0000 | [diff] [blame] | 190 | // The exception that was pending before deoptimization (or null if there was no pending |
| 191 | // exception). |
| 192 | mirror::Throwable* pending_exception_; |
| 193 | |
| 194 | // A link to the previous DeoptimizationContextRecord. |
| 195 | DeoptimizationContextRecord* const link_; |
| 196 | |
| 197 | DISALLOW_COPY_AND_ASSIGN(DeoptimizationContextRecord); |
Sebastien Hertz | f795869 | 2015-06-09 14:09:14 +0200 | [diff] [blame] | 198 | }; |
| 199 | |
| 200 | class StackedShadowFrameRecord { |
| 201 | public: |
| 202 | StackedShadowFrameRecord(ShadowFrame* shadow_frame, |
| 203 | StackedShadowFrameType type, |
| 204 | StackedShadowFrameRecord* link) |
| 205 | : shadow_frame_(shadow_frame), |
| 206 | type_(type), |
| 207 | link_(link) {} |
| 208 | |
| 209 | ShadowFrame* GetShadowFrame() const { return shadow_frame_; } |
| 210 | StackedShadowFrameType GetType() const { return type_; } |
| 211 | StackedShadowFrameRecord* GetLink() const { return link_; } |
| 212 | |
| 213 | private: |
| 214 | ShadowFrame* const shadow_frame_; |
| 215 | const StackedShadowFrameType type_; |
| 216 | StackedShadowFrameRecord* const link_; |
| 217 | |
| 218 | DISALLOW_COPY_AND_ASSIGN(StackedShadowFrameRecord); |
| 219 | }; |
| 220 | |
Nicolas Geoffray | 73be1e8 | 2015-09-17 15:22:56 +0100 | [diff] [blame] | 221 | void Thread::PushDeoptimizationContext(const JValue& return_value, |
| 222 | bool is_reference, |
| 223 | bool from_code, |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 224 | ObjPtr<mirror::Throwable> exception) { |
Sebastien Hertz | 0747466 | 2015-08-25 15:12:33 +0000 | [diff] [blame] | 225 | DeoptimizationContextRecord* record = new DeoptimizationContextRecord( |
| 226 | return_value, |
| 227 | is_reference, |
Nicolas Geoffray | 73be1e8 | 2015-09-17 15:22:56 +0100 | [diff] [blame] | 228 | from_code, |
Sebastien Hertz | 0747466 | 2015-08-25 15:12:33 +0000 | [diff] [blame] | 229 | exception, |
| 230 | tlsPtr_.deoptimization_context_stack); |
| 231 | tlsPtr_.deoptimization_context_stack = record; |
buzbee | 3ea4ec5 | 2011-08-22 17:37:19 -0700 | [diff] [blame] | 232 | } |
| 233 | |
Nicolas Geoffray | 73be1e8 | 2015-09-17 15:22:56 +0100 | [diff] [blame] | 234 | void Thread::PopDeoptimizationContext(JValue* result, |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 235 | ObjPtr<mirror::Throwable>* exception, |
Nicolas Geoffray | 73be1e8 | 2015-09-17 15:22:56 +0100 | [diff] [blame] | 236 | bool* from_code) { |
Sebastien Hertz | 0747466 | 2015-08-25 15:12:33 +0000 | [diff] [blame] | 237 | AssertHasDeoptimizationContext(); |
| 238 | DeoptimizationContextRecord* record = tlsPtr_.deoptimization_context_stack; |
| 239 | tlsPtr_.deoptimization_context_stack = record->GetLink(); |
| 240 | result->SetJ(record->GetReturnValue().GetJ()); |
| 241 | *exception = record->GetPendingException(); |
Nicolas Geoffray | 73be1e8 | 2015-09-17 15:22:56 +0100 | [diff] [blame] | 242 | *from_code = record->GetFromCode(); |
Mingyao Yang | 1f2d3ba | 2015-05-18 12:12:50 -0700 | [diff] [blame] | 243 | delete record; |
Sebastien Hertz | 0747466 | 2015-08-25 15:12:33 +0000 | [diff] [blame] | 244 | } |
| 245 | |
| 246 | void Thread::AssertHasDeoptimizationContext() { |
| 247 | CHECK(tlsPtr_.deoptimization_context_stack != nullptr) |
| 248 | << "No deoptimization context for thread " << *this; |
Ian Rogers | 306057f | 2012-11-26 12:45:53 -0800 | [diff] [blame] | 249 | } |
| 250 | |
Mingyao Yang | 1f2d3ba | 2015-05-18 12:12:50 -0700 | [diff] [blame] | 251 | void Thread::PushStackedShadowFrame(ShadowFrame* sf, StackedShadowFrameType type) { |
| 252 | StackedShadowFrameRecord* record = new StackedShadowFrameRecord( |
| 253 | sf, type, tlsPtr_.stacked_shadow_frame_record); |
| 254 | tlsPtr_.stacked_shadow_frame_record = record; |
Ian Rogers | 306057f | 2012-11-26 12:45:53 -0800 | [diff] [blame] | 255 | } |
| 256 | |
Andreas Gampe | 639bdd1 | 2015-06-03 11:22:45 -0700 | [diff] [blame] | 257 | ShadowFrame* Thread::PopStackedShadowFrame(StackedShadowFrameType type, bool must_be_present) { |
Mingyao Yang | 1f2d3ba | 2015-05-18 12:12:50 -0700 | [diff] [blame] | 258 | StackedShadowFrameRecord* record = tlsPtr_.stacked_shadow_frame_record; |
Andreas Gampe | 639bdd1 | 2015-06-03 11:22:45 -0700 | [diff] [blame] | 259 | if (must_be_present) { |
| 260 | DCHECK(record != nullptr); |
Andreas Gampe | 639bdd1 | 2015-06-03 11:22:45 -0700 | [diff] [blame] | 261 | } else { |
| 262 | if (record == nullptr || record->GetType() != type) { |
| 263 | return nullptr; |
| 264 | } |
| 265 | } |
Mingyao Yang | 1f2d3ba | 2015-05-18 12:12:50 -0700 | [diff] [blame] | 266 | tlsPtr_.stacked_shadow_frame_record = record->GetLink(); |
| 267 | ShadowFrame* shadow_frame = record->GetShadowFrame(); |
| 268 | delete record; |
| 269 | return shadow_frame; |
Andreas Gampe | 2a0d4ec | 2014-06-02 22:05:22 -0700 | [diff] [blame] | 270 | } |
| 271 | |
Mingyao Yang | 99170c6 | 2015-07-06 11:10:37 -0700 | [diff] [blame] | 272 | class FrameIdToShadowFrame { |
| 273 | public: |
| 274 | static FrameIdToShadowFrame* Create(size_t frame_id, |
| 275 | ShadowFrame* shadow_frame, |
| 276 | FrameIdToShadowFrame* next, |
| 277 | size_t num_vregs) { |
| 278 | // Append a bool array at the end to keep track of what vregs are updated by the debugger. |
| 279 | uint8_t* memory = new uint8_t[sizeof(FrameIdToShadowFrame) + sizeof(bool) * num_vregs]; |
| 280 | return new (memory) FrameIdToShadowFrame(frame_id, shadow_frame, next); |
| 281 | } |
| 282 | |
| 283 | static void Delete(FrameIdToShadowFrame* f) { |
| 284 | uint8_t* memory = reinterpret_cast<uint8_t*>(f); |
| 285 | delete[] memory; |
| 286 | } |
| 287 | |
| 288 | size_t GetFrameId() const { return frame_id_; } |
| 289 | ShadowFrame* GetShadowFrame() const { return shadow_frame_; } |
| 290 | FrameIdToShadowFrame* GetNext() const { return next_; } |
| 291 | void SetNext(FrameIdToShadowFrame* next) { next_ = next; } |
| 292 | bool* GetUpdatedVRegFlags() { |
| 293 | return updated_vreg_flags_; |
| 294 | } |
| 295 | |
| 296 | private: |
| 297 | FrameIdToShadowFrame(size_t frame_id, |
| 298 | ShadowFrame* shadow_frame, |
| 299 | FrameIdToShadowFrame* next) |
| 300 | : frame_id_(frame_id), |
| 301 | shadow_frame_(shadow_frame), |
| 302 | next_(next) {} |
| 303 | |
| 304 | const size_t frame_id_; |
| 305 | ShadowFrame* const shadow_frame_; |
| 306 | FrameIdToShadowFrame* next_; |
| 307 | bool updated_vreg_flags_[0]; |
| 308 | |
| 309 | DISALLOW_COPY_AND_ASSIGN(FrameIdToShadowFrame); |
| 310 | }; |
| 311 | |
| 312 | static FrameIdToShadowFrame* FindFrameIdToShadowFrame(FrameIdToShadowFrame* head, |
| 313 | size_t frame_id) { |
| 314 | FrameIdToShadowFrame* found = nullptr; |
| 315 | for (FrameIdToShadowFrame* record = head; record != nullptr; record = record->GetNext()) { |
| 316 | if (record->GetFrameId() == frame_id) { |
| 317 | if (kIsDebugBuild) { |
| 318 | // Sanity check we have at most one record for this frame. |
| 319 | CHECK(found == nullptr) << "Multiple records for the frame " << frame_id; |
| 320 | found = record; |
| 321 | } else { |
| 322 | return record; |
| 323 | } |
| 324 | } |
| 325 | } |
| 326 | return found; |
| 327 | } |
| 328 | |
| 329 | ShadowFrame* Thread::FindDebuggerShadowFrame(size_t frame_id) { |
| 330 | FrameIdToShadowFrame* record = FindFrameIdToShadowFrame( |
| 331 | tlsPtr_.frame_id_to_shadow_frame, frame_id); |
| 332 | if (record != nullptr) { |
| 333 | return record->GetShadowFrame(); |
| 334 | } |
| 335 | return nullptr; |
| 336 | } |
| 337 | |
| 338 | // Must only be called when FindDebuggerShadowFrame(frame_id) returns non-nullptr. |
| 339 | bool* Thread::GetUpdatedVRegFlags(size_t frame_id) { |
| 340 | FrameIdToShadowFrame* record = FindFrameIdToShadowFrame( |
| 341 | tlsPtr_.frame_id_to_shadow_frame, frame_id); |
| 342 | CHECK(record != nullptr); |
| 343 | return record->GetUpdatedVRegFlags(); |
| 344 | } |
| 345 | |
| 346 | ShadowFrame* Thread::FindOrCreateDebuggerShadowFrame(size_t frame_id, |
| 347 | uint32_t num_vregs, |
| 348 | ArtMethod* method, |
| 349 | uint32_t dex_pc) { |
| 350 | ShadowFrame* shadow_frame = FindDebuggerShadowFrame(frame_id); |
| 351 | if (shadow_frame != nullptr) { |
| 352 | return shadow_frame; |
| 353 | } |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 354 | VLOG(deopt) << "Create pre-deopted ShadowFrame for " << ArtMethod::PrettyMethod(method); |
Mingyao Yang | 99170c6 | 2015-07-06 11:10:37 -0700 | [diff] [blame] | 355 | shadow_frame = ShadowFrame::CreateDeoptimizedFrame(num_vregs, nullptr, method, dex_pc); |
| 356 | FrameIdToShadowFrame* record = FrameIdToShadowFrame::Create(frame_id, |
| 357 | shadow_frame, |
| 358 | tlsPtr_.frame_id_to_shadow_frame, |
| 359 | num_vregs); |
| 360 | for (uint32_t i = 0; i < num_vregs; i++) { |
| 361 | // Do this to clear all references for root visitors. |
| 362 | shadow_frame->SetVRegReference(i, nullptr); |
| 363 | // This flag will be changed to true if the debugger modifies the value. |
| 364 | record->GetUpdatedVRegFlags()[i] = false; |
| 365 | } |
| 366 | tlsPtr_.frame_id_to_shadow_frame = record; |
| 367 | return shadow_frame; |
| 368 | } |
| 369 | |
| 370 | void Thread::RemoveDebuggerShadowFrameMapping(size_t frame_id) { |
| 371 | FrameIdToShadowFrame* head = tlsPtr_.frame_id_to_shadow_frame; |
| 372 | if (head->GetFrameId() == frame_id) { |
| 373 | tlsPtr_.frame_id_to_shadow_frame = head->GetNext(); |
| 374 | FrameIdToShadowFrame::Delete(head); |
| 375 | return; |
| 376 | } |
| 377 | FrameIdToShadowFrame* prev = head; |
| 378 | for (FrameIdToShadowFrame* record = head->GetNext(); |
| 379 | record != nullptr; |
| 380 | prev = record, record = record->GetNext()) { |
| 381 | if (record->GetFrameId() == frame_id) { |
| 382 | prev->SetNext(record->GetNext()); |
| 383 | FrameIdToShadowFrame::Delete(record); |
| 384 | return; |
| 385 | } |
| 386 | } |
| 387 | LOG(FATAL) << "No shadow frame for frame " << frame_id; |
| 388 | UNREACHABLE(); |
| 389 | } |
| 390 | |
Brian Carlstrom | caabb1b | 2011-10-11 18:09:13 -0700 | [diff] [blame] | 391 | void Thread::InitTid() { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 392 | tls32_.tid = ::art::GetTid(); |
Brian Carlstrom | caabb1b | 2011-10-11 18:09:13 -0700 | [diff] [blame] | 393 | } |
| 394 | |
Brian Carlstrom | caabb1b | 2011-10-11 18:09:13 -0700 | [diff] [blame] | 395 | void Thread::InitAfterFork() { |
Elliott Hughes | 8029cbe | 2012-05-22 09:13:08 -0700 | [diff] [blame] | 396 | // One thread (us) survived the fork, but we have a new tid so we need to |
| 397 | // update the value stashed in this Thread*. |
Brian Carlstrom | caabb1b | 2011-10-11 18:09:13 -0700 | [diff] [blame] | 398 | InitTid(); |
Brian Carlstrom | caabb1b | 2011-10-11 18:09:13 -0700 | [diff] [blame] | 399 | } |
| 400 | |
Brian Carlstrom | 78128a6 | 2011-09-15 17:21:19 -0700 | [diff] [blame] | 401 | void* Thread::CreateCallback(void* arg) { |
Elliott Hughes | 93e74e8 | 2011-09-13 11:07:03 -0700 | [diff] [blame] | 402 | Thread* self = reinterpret_cast<Thread*>(arg); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 403 | Runtime* runtime = Runtime::Current(); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 404 | if (runtime == nullptr) { |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 405 | LOG(ERROR) << "Thread attaching to non-existent runtime: " << *self; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 406 | return nullptr; |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 407 | } |
| 408 | { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 409 | // TODO: pass self to MutexLock - requires self to equal Thread::Current(), which is only true |
| 410 | // after self->Init(). |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 411 | MutexLock mu(nullptr, *Locks::runtime_shutdown_lock_); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 412 | // Check that if we got here we cannot be shutting down (as shutdown should never have started |
| 413 | // while threads are being born). |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 414 | CHECK(!runtime->IsShuttingDownLocked()); |
Andreas Gampe | 449357d | 2015-06-01 22:29:51 -0700 | [diff] [blame] | 415 | // Note: given that the JNIEnv is created in the parent thread, the only failure point here is |
| 416 | // a mess in InitStackHwm. We do not have a reasonable way to recover from that, so abort |
| 417 | // the runtime in such a case. In case this ever changes, we need to make sure here to |
| 418 | // delete the tmp_jni_env, as we own it at this point. |
| 419 | CHECK(self->Init(runtime->GetThreadList(), runtime->GetJavaVM(), self->tlsPtr_.tmp_jni_env)); |
| 420 | self->tlsPtr_.tmp_jni_env = nullptr; |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 421 | Runtime::Current()->EndThreadBirth(); |
| 422 | } |
Elliott Hughes | 47179f7 | 2011-10-27 16:44:39 -0700 | [diff] [blame] | 423 | { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 424 | ScopedObjectAccess soa(self); |
Jeff Hao | 848f70a | 2014-01-15 13:49:50 -0800 | [diff] [blame] | 425 | self->InitStringEntryPoints(); |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 426 | |
| 427 | // Copy peer into self, deleting global reference when done. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 428 | CHECK(self->tlsPtr_.jpeer != nullptr); |
Mathieu Chartier | 1cc62e4 | 2016-10-03 18:01:28 -0700 | [diff] [blame] | 429 | self->tlsPtr_.opeer = soa.Decode<mirror::Object>(self->tlsPtr_.jpeer).Ptr(); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 430 | self->GetJniEnv()->DeleteGlobalRef(self->tlsPtr_.jpeer); |
| 431 | self->tlsPtr_.jpeer = nullptr; |
Andreas Gampe | 08883de | 2016-11-08 13:20:52 -0800 | [diff] [blame] | 432 | self->SetThreadName(self->GetThreadName()->ToModifiedUtf8().c_str()); |
Narayan Kamath | a0b3451 | 2014-10-07 12:51:26 +0100 | [diff] [blame] | 433 | |
Andreas Gampe | 08883de | 2016-11-08 13:20:52 -0800 | [diff] [blame] | 434 | ArtField* priorityField = jni::DecodeArtField(WellKnownClasses::java_lang_Thread_priority); |
Narayan Kamath | a0b3451 | 2014-10-07 12:51:26 +0100 | [diff] [blame] | 435 | self->SetNativePriority(priorityField->GetInt(self->tlsPtr_.opeer)); |
Andreas Gampe | 04bbb5b | 2017-01-19 17:49:03 +0000 | [diff] [blame] | 436 | |
Andreas Gampe | ac30fa2 | 2017-01-18 21:02:36 -0800 | [diff] [blame] | 437 | runtime->GetRuntimeCallbacks()->ThreadStart(self); |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 438 | |
| 439 | // Invoke the 'run' method of our java.lang.Thread. |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 440 | ObjPtr<mirror::Object> receiver = self->tlsPtr_.opeer; |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 441 | jmethodID mid = WellKnownClasses::java_lang_Thread_run; |
Jeff Hao | 39b6c24 | 2015-05-19 20:30:23 -0700 | [diff] [blame] | 442 | ScopedLocalRef<jobject> ref(soa.Env(), soa.AddLocalReference<jobject>(receiver)); |
| 443 | InvokeVirtualOrInterfaceWithJValues(soa, ref.get(), mid, nullptr); |
Elliott Hughes | 47179f7 | 2011-10-27 16:44:39 -0700 | [diff] [blame] | 444 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 445 | // Detach and delete self. |
| 446 | Runtime::Current()->GetThreadList()->Unregister(self); |
Elliott Hughes | 93e74e8 | 2011-09-13 11:07:03 -0700 | [diff] [blame] | 447 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 448 | return nullptr; |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 449 | } |
| 450 | |
Mathieu Chartier | 2b7c4d1 | 2014-05-19 10:52:16 -0700 | [diff] [blame] | 451 | Thread* Thread::FromManagedThread(const ScopedObjectAccessAlreadyRunnable& soa, |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 452 | ObjPtr<mirror::Object> thread_peer) { |
Andreas Gampe | 08883de | 2016-11-08 13:20:52 -0800 | [diff] [blame] | 453 | ArtField* f = jni::DecodeArtField(WellKnownClasses::java_lang_Thread_nativePeer); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 454 | 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] | 455 | // Sanity check that if we have a result it is either suspended or we hold the thread_list_lock_ |
| 456 | // to stop it from going away. |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 457 | if (kIsDebugBuild) { |
| 458 | MutexLock mu(soa.Self(), *Locks::thread_suspend_count_lock_); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 459 | if (result != nullptr && !result->IsSuspended()) { |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 460 | Locks::thread_list_lock_->AssertHeld(soa.Self()); |
| 461 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 462 | } |
| 463 | return result; |
Elliott Hughes | 761928d | 2011-11-16 18:33:03 -0800 | [diff] [blame] | 464 | } |
| 465 | |
Mathieu Chartier | 2b7c4d1 | 2014-05-19 10:52:16 -0700 | [diff] [blame] | 466 | Thread* Thread::FromManagedThread(const ScopedObjectAccessAlreadyRunnable& soa, |
| 467 | jobject java_thread) { |
Mathieu Chartier | 1cc62e4 | 2016-10-03 18:01:28 -0700 | [diff] [blame] | 468 | return FromManagedThread(soa, soa.Decode<mirror::Object>(java_thread).Ptr()); |
Elliott Hughes | 01158d7 | 2011-09-19 19:47:10 -0700 | [diff] [blame] | 469 | } |
| 470 | |
Elliott Hughes | ab7b9dc | 2012-03-27 13:16:29 -0700 | [diff] [blame] | 471 | static size_t FixStackSize(size_t stack_size) { |
Elliott Hughes | 7502e2a | 2011-10-02 13:24:37 -0700 | [diff] [blame] | 472 | // A stack size of zero means "use the default". |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 473 | if (stack_size == 0) { |
| 474 | stack_size = Runtime::Current()->GetDefaultStackSize(); |
| 475 | } |
Carl Shapiro | 61e019d | 2011-07-14 16:53:09 -0700 | [diff] [blame] | 476 | |
Brian Carlstrom | 6414a97 | 2012-04-14 14:20:04 -0700 | [diff] [blame] | 477 | // Dalvik used the bionic pthread default stack size for native threads, |
| 478 | // so include that here to support apps that expect large native stacks. |
| 479 | stack_size += 1 * MB; |
| 480 | |
Elliott Hughes | 7502e2a | 2011-10-02 13:24:37 -0700 | [diff] [blame] | 481 | // It's not possible to request a stack smaller than the system-defined PTHREAD_STACK_MIN. |
| 482 | if (stack_size < PTHREAD_STACK_MIN) { |
| 483 | stack_size = PTHREAD_STACK_MIN; |
| 484 | } |
| 485 | |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 486 | if (Runtime::Current()->ExplicitStackOverflowChecks()) { |
| 487 | // It's likely that callers are trying to ensure they have at least a certain amount of |
| 488 | // stack space, so we should add our reserved space on top of what they requested, rather |
| 489 | // than implicitly take it away from them. |
Andreas Gampe | 7ea6f79 | 2014-07-14 16:21:44 -0700 | [diff] [blame] | 490 | stack_size += GetStackOverflowReservedBytes(kRuntimeISA); |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 491 | } else { |
| 492 | // If we are going to use implicit stack checks, allocate space for the protected |
| 493 | // region at the bottom of the stack. |
Dave Allison | b090a18 | 2014-08-14 17:02:48 +0000 | [diff] [blame] | 494 | stack_size += Thread::kStackOverflowImplicitCheckSize + |
| 495 | GetStackOverflowReservedBytes(kRuntimeISA); |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 496 | } |
Elliott Hughes | 7502e2a | 2011-10-02 13:24:37 -0700 | [diff] [blame] | 497 | |
| 498 | // Some systems require the stack size to be a multiple of the system page size, so round up. |
| 499 | stack_size = RoundUp(stack_size, kPageSize); |
| 500 | |
| 501 | return stack_size; |
| 502 | } |
| 503 | |
Evgenii Stepanov | 84a4ab8 | 2016-05-13 14:01:41 -0700 | [diff] [blame] | 504 | // Return the nearest page-aligned address below the current stack top. |
| 505 | NO_INLINE |
| 506 | static uint8_t* FindStackTop() { |
| 507 | return reinterpret_cast<uint8_t*>( |
| 508 | AlignDown(__builtin_frame_address(0), kPageSize)); |
| 509 | } |
| 510 | |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 511 | // Install a protected region in the stack. This is used to trigger a SIGSEGV if a stack |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 512 | // overflow is detected. It is located right below the stack_begin_. |
Evgenii Stepanov | 4abf451 | 2015-07-13 10:41:57 -0700 | [diff] [blame] | 513 | ATTRIBUTE_NO_SANITIZE_ADDRESS |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 514 | void Thread::InstallImplicitProtection() { |
Ian Rogers | 1373595 | 2014-10-08 12:43:28 -0700 | [diff] [blame] | 515 | uint8_t* pregion = tlsPtr_.stack_begin - kStackOverflowProtectedSize; |
Evgenii Stepanov | 84a4ab8 | 2016-05-13 14:01:41 -0700 | [diff] [blame] | 516 | // Page containing current top of stack. |
| 517 | uint8_t* stack_top = FindStackTop(); |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 518 | |
Andreas Gampe | 2c2d2a0 | 2016-03-17 21:27:19 -0700 | [diff] [blame] | 519 | // Try to directly protect the stack. |
| 520 | VLOG(threads) << "installing stack protected region at " << std::hex << |
| 521 | static_cast<void*>(pregion) << " to " << |
| 522 | static_cast<void*>(pregion + kStackOverflowProtectedSize - 1); |
| 523 | if (ProtectStack(/* fatal_on_error */ false)) { |
| 524 | // Tell the kernel that we won't be needing these pages any more. |
| 525 | // NB. madvise will probably write zeroes into the memory (on linux it does). |
| 526 | uint32_t unwanted_size = stack_top - pregion - kPageSize; |
| 527 | madvise(pregion, unwanted_size, MADV_DONTNEED); |
| 528 | return; |
| 529 | } |
| 530 | |
| 531 | // There is a little complexity here that deserves a special mention. On some |
| 532 | // architectures, the stack is created using a VM_GROWSDOWN flag |
| 533 | // to prevent memory being allocated when it's not needed. This flag makes the |
| 534 | // kernel only allocate memory for the stack by growing down in memory. Because we |
| 535 | // want to put an mprotected region far away from that at the stack top, we need |
| 536 | // to make sure the pages for the stack are mapped in before we call mprotect. |
| 537 | // |
| 538 | // The failed mprotect in UnprotectStack is an indication of a thread with VM_GROWSDOWN |
| 539 | // with a non-mapped stack (usually only the main thread). |
| 540 | // |
| 541 | // We map in the stack by reading every page from the stack bottom (highest address) |
| 542 | // to the stack top. (We then madvise this away.) This must be done by reading from the |
| 543 | // current stack pointer downwards. Any access more than a page below the current SP |
| 544 | // might cause a segv. |
| 545 | // TODO: This comment may be out of date. It seems possible to speed this up. As |
| 546 | // this is normally done once in the zygote on startup, ignore for now. |
| 547 | // |
| 548 | // AddressSanitizer does not like the part of this functions that reads every stack page. |
| 549 | // Looks a lot like an out-of-bounds access. |
| 550 | |
| 551 | // (Defensively) first remove the protection on the protected region as will want to read |
| 552 | // and write it. Ignore errors. |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 553 | UnprotectStack(); |
Dave Allison | 69dfe51 | 2014-07-11 17:11:58 +0000 | [diff] [blame] | 554 | |
Andreas Gampe | 2c2d2a0 | 2016-03-17 21:27:19 -0700 | [diff] [blame] | 555 | VLOG(threads) << "Need to map in stack for thread at " << std::hex << |
| 556 | static_cast<void*>(pregion); |
Dave Allison | 69dfe51 | 2014-07-11 17:11:58 +0000 | [diff] [blame] | 557 | |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 558 | // Read every page from the high address to the low. |
Andreas Gampe | 2c2d2a0 | 2016-03-17 21:27:19 -0700 | [diff] [blame] | 559 | volatile uint8_t dont_optimize_this; |
Roland Levillain | 48a7bae | 2016-03-21 14:09:54 +0000 | [diff] [blame] | 560 | UNUSED(dont_optimize_this); |
Ian Rogers | 1373595 | 2014-10-08 12:43:28 -0700 | [diff] [blame] | 561 | for (uint8_t* p = stack_top; p >= pregion; p -= kPageSize) { |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 562 | dont_optimize_this = *p; |
Dave Allison | 69dfe51 | 2014-07-11 17:11:58 +0000 | [diff] [blame] | 563 | } |
| 564 | |
Andreas Gampe | 2c2d2a0 | 2016-03-17 21:27:19 -0700 | [diff] [blame] | 565 | VLOG(threads) << "(again) installing stack protected region at " << std::hex << |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 566 | static_cast<void*>(pregion) << " to " << |
| 567 | static_cast<void*>(pregion + kStackOverflowProtectedSize - 1); |
| 568 | |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 569 | // Protect the bottom of the stack to prevent read/write to it. |
Andreas Gampe | 2c2d2a0 | 2016-03-17 21:27:19 -0700 | [diff] [blame] | 570 | ProtectStack(/* fatal_on_error */ true); |
Dave Allison | 5cd3375 | 2014-04-15 15:57:58 -0700 | [diff] [blame] | 571 | |
| 572 | // Tell the kernel that we won't be needing these pages any more. |
Dave Allison | 69dfe51 | 2014-07-11 17:11:58 +0000 | [diff] [blame] | 573 | // NB. madvise will probably write zeroes into the memory (on linux it does). |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 574 | uint32_t unwanted_size = stack_top - pregion - kPageSize; |
| 575 | madvise(pregion, unwanted_size, MADV_DONTNEED); |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 576 | } |
| 577 | |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 578 | 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] | 579 | CHECK(java_peer != nullptr); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 580 | Thread* self = static_cast<JNIEnvExt*>(env)->self; |
Andreas Gampe | 5662383 | 2015-07-09 21:53:15 -0700 | [diff] [blame] | 581 | |
| 582 | if (VLOG_IS_ON(threads)) { |
| 583 | ScopedObjectAccess soa(env); |
| 584 | |
Andreas Gampe | 08883de | 2016-11-08 13:20:52 -0800 | [diff] [blame] | 585 | ArtField* f = jni::DecodeArtField(WellKnownClasses::java_lang_Thread_name); |
Mathieu Chartier | 3398c78 | 2016-09-30 10:27:43 -0700 | [diff] [blame] | 586 | ObjPtr<mirror::String> java_name = |
| 587 | f->GetObject(soa.Decode<mirror::Object>(java_peer))->AsString(); |
Andreas Gampe | 5662383 | 2015-07-09 21:53:15 -0700 | [diff] [blame] | 588 | std::string thread_name; |
| 589 | if (java_name != nullptr) { |
| 590 | thread_name = java_name->ToModifiedUtf8(); |
| 591 | } else { |
| 592 | thread_name = "(Unnamed)"; |
| 593 | } |
| 594 | |
| 595 | VLOG(threads) << "Creating native thread for " << thread_name; |
Andreas Gampe | 3fec9ac | 2016-09-13 10:47:28 -0700 | [diff] [blame] | 596 | self->Dump(LOG_STREAM(INFO)); |
Andreas Gampe | 5662383 | 2015-07-09 21:53:15 -0700 | [diff] [blame] | 597 | } |
| 598 | |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 599 | Runtime* runtime = Runtime::Current(); |
Mathieu Chartier | dbe6f46 | 2012-09-25 16:54:50 -0700 | [diff] [blame] | 600 | |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 601 | // Atomically start the birth of the thread ensuring the runtime isn't shutting down. |
| 602 | bool thread_start_during_shutdown = false; |
Elliott Hughes | 47179f7 | 2011-10-27 16:44:39 -0700 | [diff] [blame] | 603 | { |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 604 | MutexLock mu(self, *Locks::runtime_shutdown_lock_); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 605 | if (runtime->IsShuttingDownLocked()) { |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 606 | thread_start_during_shutdown = true; |
| 607 | } else { |
| 608 | runtime->StartThreadBirth(); |
| 609 | } |
Elliott Hughes | 47179f7 | 2011-10-27 16:44:39 -0700 | [diff] [blame] | 610 | } |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 611 | if (thread_start_during_shutdown) { |
| 612 | ScopedLocalRef<jclass> error_class(env, env->FindClass("java/lang/InternalError")); |
| 613 | env->ThrowNew(error_class.get(), "Thread starting during runtime shutdown"); |
| 614 | return; |
| 615 | } |
| 616 | |
| 617 | Thread* child_thread = new Thread(is_daemon); |
| 618 | // Use global JNI ref to hold peer live while child thread starts. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 619 | child_thread->tlsPtr_.jpeer = env->NewGlobalRef(java_peer); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 620 | stack_size = FixStackSize(stack_size); |
| 621 | |
Anwar Ghuloum | 3c50a4b | 2013-06-21 13:05:23 -0700 | [diff] [blame] | 622 | // 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] | 623 | // assign it. |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 624 | env->SetLongField(java_peer, WellKnownClasses::java_lang_Thread_nativePeer, |
| 625 | reinterpret_cast<jlong>(child_thread)); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 626 | |
Andreas Gampe | 449357d | 2015-06-01 22:29:51 -0700 | [diff] [blame] | 627 | // Try to allocate a JNIEnvExt for the thread. We do this here as we might be out of memory and |
| 628 | // do not have a good way to report this on the child's side. |
Richard Uhler | da0a69e | 2016-10-11 15:06:38 +0100 | [diff] [blame] | 629 | std::string error_msg; |
Andreas Gampe | 449357d | 2015-06-01 22:29:51 -0700 | [diff] [blame] | 630 | std::unique_ptr<JNIEnvExt> child_jni_env_ext( |
Richard Uhler | da0a69e | 2016-10-11 15:06:38 +0100 | [diff] [blame] | 631 | JNIEnvExt::Create(child_thread, Runtime::Current()->GetJavaVM(), &error_msg)); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 632 | |
Andreas Gampe | 449357d | 2015-06-01 22:29:51 -0700 | [diff] [blame] | 633 | int pthread_create_result = 0; |
| 634 | if (child_jni_env_ext.get() != nullptr) { |
| 635 | pthread_t new_pthread; |
| 636 | pthread_attr_t attr; |
| 637 | child_thread->tlsPtr_.tmp_jni_env = child_jni_env_ext.get(); |
| 638 | CHECK_PTHREAD_CALL(pthread_attr_init, (&attr), "new thread"); |
| 639 | CHECK_PTHREAD_CALL(pthread_attr_setdetachstate, (&attr, PTHREAD_CREATE_DETACHED), |
| 640 | "PTHREAD_CREATE_DETACHED"); |
| 641 | CHECK_PTHREAD_CALL(pthread_attr_setstacksize, (&attr, stack_size), stack_size); |
| 642 | pthread_create_result = pthread_create(&new_pthread, |
| 643 | &attr, |
| 644 | Thread::CreateCallback, |
| 645 | child_thread); |
| 646 | CHECK_PTHREAD_CALL(pthread_attr_destroy, (&attr), "new thread"); |
| 647 | |
| 648 | if (pthread_create_result == 0) { |
| 649 | // pthread_create started the new thread. The child is now responsible for managing the |
| 650 | // JNIEnvExt we created. |
| 651 | // Note: we can't check for tmp_jni_env == nullptr, as that would require synchronization |
| 652 | // between the threads. |
| 653 | child_jni_env_ext.release(); |
| 654 | return; |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 655 | } |
Andreas Gampe | 449357d | 2015-06-01 22:29:51 -0700 | [diff] [blame] | 656 | } |
| 657 | |
| 658 | // Either JNIEnvExt::Create or pthread_create(3) failed, so clean up. |
| 659 | { |
| 660 | MutexLock mu(self, *Locks::runtime_shutdown_lock_); |
| 661 | runtime->EndThreadBirth(); |
| 662 | } |
| 663 | // Manually delete the global reference since Thread::Init will not have been run. |
| 664 | env->DeleteGlobalRef(child_thread->tlsPtr_.jpeer); |
| 665 | child_thread->tlsPtr_.jpeer = nullptr; |
| 666 | delete child_thread; |
| 667 | child_thread = nullptr; |
| 668 | // TODO: remove from thread group? |
| 669 | env->SetLongField(java_peer, WellKnownClasses::java_lang_Thread_nativePeer, 0); |
| 670 | { |
| 671 | std::string msg(child_jni_env_ext.get() == nullptr ? |
Richard Uhler | da0a69e | 2016-10-11 15:06:38 +0100 | [diff] [blame] | 672 | StringPrintf("Could not allocate JNI Env: %s", error_msg.c_str()) : |
Andreas Gampe | 449357d | 2015-06-01 22:29:51 -0700 | [diff] [blame] | 673 | StringPrintf("pthread_create (%s stack) failed: %s", |
| 674 | PrettySize(stack_size).c_str(), strerror(pthread_create_result))); |
| 675 | ScopedObjectAccess soa(env); |
| 676 | soa.Self()->ThrowOutOfMemoryError(msg.c_str()); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 677 | } |
Carl Shapiro | 61e019d | 2011-07-14 16:53:09 -0700 | [diff] [blame] | 678 | } |
| 679 | |
Andreas Gampe | 449357d | 2015-06-01 22:29:51 -0700 | [diff] [blame] | 680 | bool Thread::Init(ThreadList* thread_list, JavaVMExt* java_vm, JNIEnvExt* jni_env_ext) { |
Elliott Hughes | 462c944 | 2012-03-23 18:47:50 -0700 | [diff] [blame] | 681 | // This function does all the initialization that must be run by the native thread it applies to. |
| 682 | // (When we create a new thread from managed code, we allocate the Thread* in Thread::Create so |
| 683 | // we can handshake with the corresponding native thread when it's ready.) Check this native |
| 684 | // thread hasn't been through here already... |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 685 | CHECK(Thread::Current() == nullptr); |
Ian Rogers | f4d4da1 | 2014-11-11 16:10:33 -0800 | [diff] [blame] | 686 | |
| 687 | // Set pthread_self_ ahead of pthread_setspecific, that makes Thread::Current function, this |
| 688 | // avoids pthread_self_ ever being invalid when discovered from Thread::Current(). |
| 689 | tlsPtr_.pthread_self = pthread_self(); |
| 690 | CHECK(is_started_); |
| 691 | |
Elliott Hughes | d8af159 | 2012-04-16 20:40:15 -0700 | [diff] [blame] | 692 | SetUpAlternateSignalStack(); |
Ian Rogers | f4d4da1 | 2014-11-11 16:10:33 -0800 | [diff] [blame] | 693 | if (!InitStackHwm()) { |
| 694 | return false; |
| 695 | } |
Elliott Hughes | 93e74e8 | 2011-09-13 11:07:03 -0700 | [diff] [blame] | 696 | InitCpu(); |
Ian Rogers | 848871b | 2013-08-05 10:56:33 -0700 | [diff] [blame] | 697 | InitTlsEntryPoints(); |
Dave Allison | b373e09 | 2014-02-20 16:06:36 -0800 | [diff] [blame] | 698 | RemoveSuspendTrigger(); |
Ian Rogers | 5d76c43 | 2011-10-31 21:42:49 -0700 | [diff] [blame] | 699 | InitCardTable(); |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 700 | InitTid(); |
buzbee | 1452bee | 2015-03-06 14:43:04 -0800 | [diff] [blame] | 701 | interpreter::InitInterpreterTls(this); |
Ian Rogers | f4d4da1 | 2014-11-11 16:10:33 -0800 | [diff] [blame] | 702 | |
Bilyan Borisov | bb661c0 | 2016-04-04 16:27:32 +0100 | [diff] [blame] | 703 | #ifdef ART_TARGET_ANDROID |
Andreas Gampe | 4382f1e | 2015-08-05 01:08:53 +0000 | [diff] [blame] | 704 | __get_tls()[TLS_SLOT_ART_THREAD_SELF] = this; |
| 705 | #else |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 706 | CHECK_PTHREAD_CALL(pthread_setspecific, (Thread::pthread_key_self_, this), "attach self"); |
Andreas Gampe | 4382f1e | 2015-08-05 01:08:53 +0000 | [diff] [blame] | 707 | #endif |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 708 | DCHECK_EQ(Thread::Current(), this); |
Carl Shapiro | 61e019d | 2011-07-14 16:53:09 -0700 | [diff] [blame] | 709 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 710 | tls32_.thin_lock_thread_id = thread_list->AllocThreadId(this); |
Carl Shapiro | 61e019d | 2011-07-14 16:53:09 -0700 | [diff] [blame] | 711 | |
Andreas Gampe | 449357d | 2015-06-01 22:29:51 -0700 | [diff] [blame] | 712 | if (jni_env_ext != nullptr) { |
| 713 | DCHECK_EQ(jni_env_ext->vm, java_vm); |
| 714 | DCHECK_EQ(jni_env_ext->self, this); |
| 715 | tlsPtr_.jni_env = jni_env_ext; |
| 716 | } else { |
Richard Uhler | da0a69e | 2016-10-11 15:06:38 +0100 | [diff] [blame] | 717 | std::string error_msg; |
| 718 | tlsPtr_.jni_env = JNIEnvExt::Create(this, java_vm, &error_msg); |
Andreas Gampe | 449357d | 2015-06-01 22:29:51 -0700 | [diff] [blame] | 719 | if (tlsPtr_.jni_env == nullptr) { |
Richard Uhler | da0a69e | 2016-10-11 15:06:38 +0100 | [diff] [blame] | 720 | LOG(ERROR) << "Failed to create JNIEnvExt: " << error_msg; |
Andreas Gampe | 449357d | 2015-06-01 22:29:51 -0700 | [diff] [blame] | 721 | return false; |
| 722 | } |
Andreas Gampe | 3f5881f | 2015-04-08 10:26:16 -0700 | [diff] [blame] | 723 | } |
| 724 | |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 725 | thread_list->Register(this); |
Ian Rogers | f4d4da1 | 2014-11-11 16:10:33 -0800 | [diff] [blame] | 726 | return true; |
Elliott Hughes | 93e74e8 | 2011-09-13 11:07:03 -0700 | [diff] [blame] | 727 | } |
| 728 | |
Andreas Gampe | 732b0ac | 2017-01-18 15:23:39 -0800 | [diff] [blame] | 729 | template <typename PeerAction> |
| 730 | Thread* Thread::Attach(const char* thread_name, bool as_daemon, PeerAction peer_action) { |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 731 | Runtime* runtime = Runtime::Current(); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 732 | if (runtime == nullptr) { |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 733 | LOG(ERROR) << "Thread attaching to non-existent runtime: " << thread_name; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 734 | return nullptr; |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 735 | } |
Ian Rogers | f4d4da1 | 2014-11-11 16:10:33 -0800 | [diff] [blame] | 736 | Thread* self; |
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 | MutexLock mu(nullptr, *Locks::runtime_shutdown_lock_); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 739 | if (runtime->IsShuttingDownLocked()) { |
Calin Juravle | f39f009 | 2016-04-28 12:59:33 +0100 | [diff] [blame] | 740 | LOG(WARNING) << "Thread attaching while runtime is shutting down: " << thread_name; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 741 | return nullptr; |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 742 | } else { |
| 743 | Runtime::Current()->StartThreadBirth(); |
| 744 | self = new Thread(as_daemon); |
Ian Rogers | f4d4da1 | 2014-11-11 16:10:33 -0800 | [diff] [blame] | 745 | bool init_success = self->Init(runtime->GetThreadList(), runtime->GetJavaVM()); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 746 | Runtime::Current()->EndThreadBirth(); |
Ian Rogers | f4d4da1 | 2014-11-11 16:10:33 -0800 | [diff] [blame] | 747 | if (!init_success) { |
| 748 | delete self; |
| 749 | return nullptr; |
| 750 | } |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 751 | } |
| 752 | } |
Elliott Hughes | 93e74e8 | 2011-09-13 11:07:03 -0700 | [diff] [blame] | 753 | |
Jeff Hao | 848f70a | 2014-01-15 13:49:50 -0800 | [diff] [blame] | 754 | self->InitStringEntryPoints(); |
| 755 | |
Mathieu Chartier | dbe6f46 | 2012-09-25 16:54:50 -0700 | [diff] [blame] | 756 | CHECK_NE(self->GetState(), kRunnable); |
| 757 | self->SetState(kNative); |
Elliott Hughes | 93e74e8 | 2011-09-13 11:07:03 -0700 | [diff] [blame] | 758 | |
Andreas Gampe | 732b0ac | 2017-01-18 15:23:39 -0800 | [diff] [blame] | 759 | // Run the action that is acting on the peer. |
| 760 | if (!peer_action(self)) { |
| 761 | runtime->GetThreadList()->Unregister(self); |
| 762 | // Unregister deletes self, no need to do this here. |
| 763 | return nullptr; |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 764 | } |
Elliott Hughes | cac6cc7 | 2011-11-03 20:31:21 -0700 | [diff] [blame] | 765 | |
Andreas Gampe | 5662383 | 2015-07-09 21:53:15 -0700 | [diff] [blame] | 766 | if (VLOG_IS_ON(threads)) { |
| 767 | if (thread_name != nullptr) { |
| 768 | VLOG(threads) << "Attaching thread " << thread_name; |
| 769 | } else { |
| 770 | VLOG(threads) << "Attaching unnamed thread."; |
| 771 | } |
| 772 | ScopedObjectAccess soa(self); |
Andreas Gampe | 3fec9ac | 2016-09-13 10:47:28 -0700 | [diff] [blame] | 773 | self->Dump(LOG_STREAM(INFO)); |
Andreas Gampe | 5662383 | 2015-07-09 21:53:15 -0700 | [diff] [blame] | 774 | } |
| 775 | |
Daniel Mihalyi | dfafeef | 2014-10-20 11:47:56 +0200 | [diff] [blame] | 776 | { |
| 777 | ScopedObjectAccess soa(self); |
Andreas Gampe | ac30fa2 | 2017-01-18 21:02:36 -0800 | [diff] [blame] | 778 | runtime->GetRuntimeCallbacks()->ThreadStart(self); |
Daniel Mihalyi | dfafeef | 2014-10-20 11:47:56 +0200 | [diff] [blame] | 779 | } |
| 780 | |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 781 | return self; |
| 782 | } |
| 783 | |
Andreas Gampe | 732b0ac | 2017-01-18 15:23:39 -0800 | [diff] [blame] | 784 | Thread* Thread::Attach(const char* thread_name, |
| 785 | bool as_daemon, |
| 786 | jobject thread_group, |
| 787 | bool create_peer) { |
| 788 | auto create_peer_action = [&](Thread* self) { |
| 789 | // If we're the main thread, ClassLinker won't be created until after we're attached, |
| 790 | // so that thread needs a two-stage attach. Regular threads don't need this hack. |
| 791 | // In the compiler, all threads need this hack, because no-one's going to be getting |
| 792 | // a native peer! |
| 793 | if (create_peer) { |
| 794 | self->CreatePeer(thread_name, as_daemon, thread_group); |
| 795 | if (self->IsExceptionPending()) { |
| 796 | // We cannot keep the exception around, as we're deleting self. Try to be helpful and log it. |
| 797 | { |
| 798 | ScopedObjectAccess soa(self); |
| 799 | LOG(ERROR) << "Exception creating thread peer:"; |
| 800 | LOG(ERROR) << self->GetException()->Dump(); |
| 801 | self->ClearException(); |
| 802 | } |
| 803 | return false; |
| 804 | } |
| 805 | } else { |
| 806 | // These aren't necessary, but they improve diagnostics for unit tests & command-line tools. |
| 807 | if (thread_name != nullptr) { |
| 808 | self->tlsPtr_.name->assign(thread_name); |
| 809 | ::art::SetThreadName(thread_name); |
| 810 | } else if (self->GetJniEnv()->check_jni) { |
| 811 | LOG(WARNING) << *Thread::Current() << " attached without supplying a name"; |
| 812 | } |
| 813 | } |
| 814 | return true; |
| 815 | }; |
| 816 | return Attach(thread_name, as_daemon, create_peer_action); |
| 817 | } |
| 818 | |
| 819 | Thread* Thread::Attach(const char* thread_name, bool as_daemon, jobject thread_peer) { |
| 820 | auto set_peer_action = [&](Thread* self) { |
| 821 | // Install the given peer. |
| 822 | { |
| 823 | DCHECK(self == Thread::Current()); |
| 824 | ScopedObjectAccess soa(self); |
| 825 | self->tlsPtr_.opeer = soa.Decode<mirror::Object>(thread_peer).Ptr(); |
| 826 | } |
| 827 | self->GetJniEnv()->SetLongField(thread_peer, |
| 828 | WellKnownClasses::java_lang_Thread_nativePeer, |
| 829 | reinterpret_cast<jlong>(self)); |
| 830 | return true; |
| 831 | }; |
| 832 | return Attach(thread_name, as_daemon, set_peer_action); |
| 833 | } |
| 834 | |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 835 | void Thread::CreatePeer(const char* name, bool as_daemon, jobject thread_group) { |
| 836 | Runtime* runtime = Runtime::Current(); |
| 837 | CHECK(runtime->IsStarted()); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 838 | JNIEnv* env = tlsPtr_.jni_env; |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 839 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 840 | if (thread_group == nullptr) { |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 841 | thread_group = runtime->GetMainThreadGroup(); |
Elliott Hughes | 462c944 | 2012-03-23 18:47:50 -0700 | [diff] [blame] | 842 | } |
Elliott Hughes | 726079d | 2011-10-07 18:43:44 -0700 | [diff] [blame] | 843 | ScopedLocalRef<jobject> thread_name(env, env->NewStringUTF(name)); |
Mathieu Chartier | e07fd17 | 2014-11-10 16:58:19 -0800 | [diff] [blame] | 844 | // Add missing null check in case of OOM b/18297817 |
Vladimir Marko | 4451205 | 2014-11-12 15:41:57 +0000 | [diff] [blame] | 845 | if (name != nullptr && thread_name.get() == nullptr) { |
Mathieu Chartier | e07fd17 | 2014-11-10 16:58:19 -0800 | [diff] [blame] | 846 | CHECK(IsExceptionPending()); |
| 847 | return; |
| 848 | } |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 849 | jint thread_priority = GetNativePriority(); |
Elliott Hughes | 5fe594f | 2011-09-08 12:33:17 -0700 | [diff] [blame] | 850 | jboolean thread_is_daemon = as_daemon; |
| 851 | |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 852 | ScopedLocalRef<jobject> peer(env, env->AllocObject(WellKnownClasses::java_lang_Thread)); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 853 | if (peer.get() == nullptr) { |
Mathieu Chartier | dbe6f46 | 2012-09-25 16:54:50 -0700 | [diff] [blame] | 854 | CHECK(IsExceptionPending()); |
| 855 | return; |
Ian Rogers | 5d4bdc2 | 2011-11-02 22:15:43 -0700 | [diff] [blame] | 856 | } |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 857 | { |
| 858 | ScopedObjectAccess soa(this); |
Mathieu Chartier | 1cc62e4 | 2016-10-03 18:01:28 -0700 | [diff] [blame] | 859 | tlsPtr_.opeer = soa.Decode<mirror::Object>(peer.get()).Ptr(); |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 860 | } |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 861 | env->CallNonvirtualVoidMethod(peer.get(), |
| 862 | WellKnownClasses::java_lang_Thread, |
| 863 | WellKnownClasses::java_lang_Thread_init, |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 864 | thread_group, thread_name.get(), thread_priority, thread_is_daemon); |
Andreas Gampe | 4b1d4ec | 2015-10-01 16:47:26 -0700 | [diff] [blame] | 865 | if (IsExceptionPending()) { |
| 866 | return; |
| 867 | } |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 868 | |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 869 | Thread* self = this; |
| 870 | DCHECK_EQ(self, Thread::Current()); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 871 | env->SetLongField(peer.get(), WellKnownClasses::java_lang_Thread_nativePeer, |
| 872 | reinterpret_cast<jlong>(self)); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 873 | |
| 874 | ScopedObjectAccess soa(self); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 875 | StackHandleScope<1> hs(self); |
Andreas Gampe | 08883de | 2016-11-08 13:20:52 -0800 | [diff] [blame] | 876 | MutableHandle<mirror::String> peer_thread_name(hs.NewHandle(GetThreadName())); |
Andreas Gampe | fa4333d | 2017-02-14 11:10:34 -0800 | [diff] [blame] | 877 | if (peer_thread_name == nullptr) { |
Brian Carlstrom | 00fae58 | 2011-10-28 01:16:28 -0700 | [diff] [blame] | 878 | // The Thread constructor should have set the Thread.name to a |
| 879 | // non-null value. However, because we can run without code |
| 880 | // available (in the compiler, in tests), we manually assign the |
| 881 | // fields the constructor should have set. |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 882 | if (runtime->IsActiveTransaction()) { |
Andreas Gampe | bad529d | 2017-02-13 18:52:10 -0800 | [diff] [blame] | 883 | InitPeer<true>(soa, |
| 884 | tlsPtr_.opeer, |
| 885 | thread_is_daemon, |
| 886 | thread_group, |
| 887 | thread_name.get(), |
| 888 | thread_priority); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 889 | } else { |
Andreas Gampe | bad529d | 2017-02-13 18:52:10 -0800 | [diff] [blame] | 890 | InitPeer<false>(soa, |
| 891 | tlsPtr_.opeer, |
| 892 | thread_is_daemon, |
| 893 | thread_group, |
| 894 | thread_name.get(), |
| 895 | thread_priority); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 896 | } |
Andreas Gampe | 08883de | 2016-11-08 13:20:52 -0800 | [diff] [blame] | 897 | peer_thread_name.Assign(GetThreadName()); |
Brian Carlstrom | 00fae58 | 2011-10-28 01:16:28 -0700 | [diff] [blame] | 898 | } |
Elliott Hughes | 225f5a1 | 2012-06-11 11:23:48 -0700 | [diff] [blame] | 899 | // 'thread_name' may have been null, so don't trust 'peer_thread_name' to be non-null. |
Andreas Gampe | fa4333d | 2017-02-14 11:10:34 -0800 | [diff] [blame] | 900 | if (peer_thread_name != nullptr) { |
Elliott Hughes | 899e789 | 2012-01-24 14:57:32 -0800 | [diff] [blame] | 901 | SetThreadName(peer_thread_name->ToModifiedUtf8().c_str()); |
Brian Carlstrom | 00fae58 | 2011-10-28 01:16:28 -0700 | [diff] [blame] | 902 | } |
Carl Shapiro | 61e019d | 2011-07-14 16:53:09 -0700 | [diff] [blame] | 903 | } |
| 904 | |
Andreas Gampe | bad529d | 2017-02-13 18:52:10 -0800 | [diff] [blame] | 905 | jobject Thread::CreateCompileTimePeer(JNIEnv* env, |
| 906 | const char* name, |
| 907 | bool as_daemon, |
| 908 | jobject thread_group) { |
| 909 | Runtime* runtime = Runtime::Current(); |
| 910 | CHECK(!runtime->IsStarted()); |
| 911 | |
| 912 | if (thread_group == nullptr) { |
| 913 | thread_group = runtime->GetMainThreadGroup(); |
| 914 | } |
| 915 | ScopedLocalRef<jobject> thread_name(env, env->NewStringUTF(name)); |
| 916 | // Add missing null check in case of OOM b/18297817 |
| 917 | if (name != nullptr && thread_name.get() == nullptr) { |
| 918 | CHECK(Thread::Current()->IsExceptionPending()); |
| 919 | return nullptr; |
| 920 | } |
| 921 | jint thread_priority = GetNativePriority(); |
| 922 | jboolean thread_is_daemon = as_daemon; |
| 923 | |
| 924 | ScopedLocalRef<jobject> peer(env, env->AllocObject(WellKnownClasses::java_lang_Thread)); |
| 925 | if (peer.get() == nullptr) { |
| 926 | CHECK(Thread::Current()->IsExceptionPending()); |
| 927 | return nullptr; |
| 928 | } |
| 929 | |
| 930 | // We cannot call Thread.init, as it will recursively ask for currentThread. |
| 931 | |
| 932 | // The Thread constructor should have set the Thread.name to a |
| 933 | // non-null value. However, because we can run without code |
| 934 | // available (in the compiler, in tests), we manually assign the |
| 935 | // fields the constructor should have set. |
| 936 | ScopedObjectAccessUnchecked soa(Thread::Current()); |
| 937 | if (runtime->IsActiveTransaction()) { |
| 938 | InitPeer<true>(soa, |
| 939 | soa.Decode<mirror::Object>(peer.get()), |
| 940 | thread_is_daemon, |
| 941 | thread_group, |
| 942 | thread_name.get(), |
| 943 | thread_priority); |
| 944 | } else { |
| 945 | InitPeer<false>(soa, |
| 946 | soa.Decode<mirror::Object>(peer.get()), |
| 947 | thread_is_daemon, |
| 948 | thread_group, |
| 949 | thread_name.get(), |
| 950 | thread_priority); |
| 951 | } |
| 952 | |
| 953 | return peer.release(); |
| 954 | } |
| 955 | |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 956 | template<bool kTransactionActive> |
Andreas Gampe | bad529d | 2017-02-13 18:52:10 -0800 | [diff] [blame] | 957 | void Thread::InitPeer(ScopedObjectAccessAlreadyRunnable& soa, |
| 958 | ObjPtr<mirror::Object> peer, |
| 959 | jboolean thread_is_daemon, |
| 960 | jobject thread_group, |
| 961 | jobject thread_name, |
| 962 | jint thread_priority) { |
Andreas Gampe | 08883de | 2016-11-08 13:20:52 -0800 | [diff] [blame] | 963 | jni::DecodeArtField(WellKnownClasses::java_lang_Thread_daemon)-> |
Andreas Gampe | bad529d | 2017-02-13 18:52:10 -0800 | [diff] [blame] | 964 | SetBoolean<kTransactionActive>(peer, thread_is_daemon); |
Andreas Gampe | 08883de | 2016-11-08 13:20:52 -0800 | [diff] [blame] | 965 | jni::DecodeArtField(WellKnownClasses::java_lang_Thread_group)-> |
Andreas Gampe | bad529d | 2017-02-13 18:52:10 -0800 | [diff] [blame] | 966 | SetObject<kTransactionActive>(peer, soa.Decode<mirror::Object>(thread_group)); |
Andreas Gampe | 08883de | 2016-11-08 13:20:52 -0800 | [diff] [blame] | 967 | jni::DecodeArtField(WellKnownClasses::java_lang_Thread_name)-> |
Andreas Gampe | bad529d | 2017-02-13 18:52:10 -0800 | [diff] [blame] | 968 | SetObject<kTransactionActive>(peer, soa.Decode<mirror::Object>(thread_name)); |
Andreas Gampe | 08883de | 2016-11-08 13:20:52 -0800 | [diff] [blame] | 969 | jni::DecodeArtField(WellKnownClasses::java_lang_Thread_priority)-> |
Andreas Gampe | bad529d | 2017-02-13 18:52:10 -0800 | [diff] [blame] | 970 | SetInt<kTransactionActive>(peer, thread_priority); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 971 | } |
| 972 | |
Elliott Hughes | 899e789 | 2012-01-24 14:57:32 -0800 | [diff] [blame] | 973 | void Thread::SetThreadName(const char* name) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 974 | tlsPtr_.name->assign(name); |
Elliott Hughes | 899e789 | 2012-01-24 14:57:32 -0800 | [diff] [blame] | 975 | ::art::SetThreadName(name); |
| 976 | Dbg::DdmSendThreadNotification(this, CHUNK_TYPE("THNM")); |
| 977 | } |
| 978 | |
Andreas Gampe | 9186ced | 2016-12-12 14:28:21 -0800 | [diff] [blame] | 979 | static void GetThreadStack(pthread_t thread, |
| 980 | void** stack_base, |
| 981 | size_t* stack_size, |
| 982 | size_t* guard_size) { |
| 983 | #if defined(__APPLE__) |
| 984 | *stack_size = pthread_get_stacksize_np(thread); |
| 985 | void* stack_addr = pthread_get_stackaddr_np(thread); |
| 986 | |
| 987 | // Check whether stack_addr is the base or end of the stack. |
| 988 | // (On Mac OS 10.7, it's the end.) |
| 989 | int stack_variable; |
| 990 | if (stack_addr > &stack_variable) { |
| 991 | *stack_base = reinterpret_cast<uint8_t*>(stack_addr) - *stack_size; |
| 992 | } else { |
| 993 | *stack_base = stack_addr; |
| 994 | } |
| 995 | |
| 996 | // This is wrong, but there doesn't seem to be a way to get the actual value on the Mac. |
| 997 | pthread_attr_t attributes; |
| 998 | CHECK_PTHREAD_CALL(pthread_attr_init, (&attributes), __FUNCTION__); |
| 999 | CHECK_PTHREAD_CALL(pthread_attr_getguardsize, (&attributes, guard_size), __FUNCTION__); |
| 1000 | CHECK_PTHREAD_CALL(pthread_attr_destroy, (&attributes), __FUNCTION__); |
| 1001 | #else |
| 1002 | pthread_attr_t attributes; |
| 1003 | CHECK_PTHREAD_CALL(pthread_getattr_np, (thread, &attributes), __FUNCTION__); |
| 1004 | CHECK_PTHREAD_CALL(pthread_attr_getstack, (&attributes, stack_base, stack_size), __FUNCTION__); |
| 1005 | CHECK_PTHREAD_CALL(pthread_attr_getguardsize, (&attributes, guard_size), __FUNCTION__); |
| 1006 | CHECK_PTHREAD_CALL(pthread_attr_destroy, (&attributes), __FUNCTION__); |
| 1007 | |
| 1008 | #if defined(__GLIBC__) |
| 1009 | // If we're the main thread, check whether we were run with an unlimited stack. In that case, |
| 1010 | // glibc will have reported a 2GB stack for our 32-bit process, and our stack overflow detection |
| 1011 | // will be broken because we'll die long before we get close to 2GB. |
| 1012 | bool is_main_thread = (::art::GetTid() == getpid()); |
| 1013 | if (is_main_thread) { |
| 1014 | rlimit stack_limit; |
| 1015 | if (getrlimit(RLIMIT_STACK, &stack_limit) == -1) { |
| 1016 | PLOG(FATAL) << "getrlimit(RLIMIT_STACK) failed"; |
| 1017 | } |
| 1018 | if (stack_limit.rlim_cur == RLIM_INFINITY) { |
| 1019 | size_t old_stack_size = *stack_size; |
| 1020 | |
| 1021 | // Use the kernel default limit as our size, and adjust the base to match. |
| 1022 | *stack_size = 8 * MB; |
| 1023 | *stack_base = reinterpret_cast<uint8_t*>(*stack_base) + (old_stack_size - *stack_size); |
| 1024 | |
| 1025 | VLOG(threads) << "Limiting unlimited stack (reported as " << PrettySize(old_stack_size) << ")" |
| 1026 | << " to " << PrettySize(*stack_size) |
| 1027 | << " with base " << *stack_base; |
| 1028 | } |
| 1029 | } |
| 1030 | #endif |
| 1031 | |
| 1032 | #endif |
| 1033 | } |
| 1034 | |
Ian Rogers | f4d4da1 | 2014-11-11 16:10:33 -0800 | [diff] [blame] | 1035 | bool Thread::InitStackHwm() { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1036 | void* read_stack_base; |
| 1037 | size_t read_stack_size; |
Elliott Hughes | 6d3fc56 | 2014-08-27 11:47:01 -0700 | [diff] [blame] | 1038 | size_t read_guard_size; |
| 1039 | GetThreadStack(tlsPtr_.pthread_self, &read_stack_base, &read_stack_size, &read_guard_size); |
Elliott Hughes | 36ecb78 | 2012-04-17 16:55:45 -0700 | [diff] [blame] | 1040 | |
Ian Rogers | 1373595 | 2014-10-08 12:43:28 -0700 | [diff] [blame] | 1041 | tlsPtr_.stack_begin = reinterpret_cast<uint8_t*>(read_stack_base); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1042 | tlsPtr_.stack_size = read_stack_size; |
Elliott Hughes | 36ecb78 | 2012-04-17 16:55:45 -0700 | [diff] [blame] | 1043 | |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 1044 | // The minimum stack size we can cope with is the overflow reserved bytes (typically |
| 1045 | // 8K) + the protected region size (4K) + another page (4K). Typically this will |
| 1046 | // be 8+4+4 = 16K. The thread won't be able to do much with this stack even the GC takes |
| 1047 | // between 8K and 12K. |
| 1048 | uint32_t min_stack = GetStackOverflowReservedBytes(kRuntimeISA) + kStackOverflowProtectedSize |
| 1049 | + 4 * KB; |
| 1050 | if (read_stack_size <= min_stack) { |
Ian Rogers | f4d4da1 | 2014-11-11 16:10:33 -0800 | [diff] [blame] | 1051 | // Note, as we know the stack is small, avoid operations that could use a lot of stack. |
Andreas Gampe | 3fec9ac | 2016-09-13 10:47:28 -0700 | [diff] [blame] | 1052 | LogHelper::LogLineLowStack(__PRETTY_FUNCTION__, |
| 1053 | __LINE__, |
| 1054 | ::android::base::ERROR, |
| 1055 | "Attempt to attach a thread with a too-small stack"); |
Ian Rogers | f4d4da1 | 2014-11-11 16:10:33 -0800 | [diff] [blame] | 1056 | return false; |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 1057 | } |
Elliott Hughes | 449b4bd | 2011-09-09 12:01:38 -0700 | [diff] [blame] | 1058 | |
Vladimir Marko | b8f2f63 | 2015-01-02 14:23:26 +0000 | [diff] [blame] | 1059 | // This is included in the SIGQUIT output, but it's useful here for thread debugging. |
| 1060 | VLOG(threads) << StringPrintf("Native stack is at %p (%s with %s guard)", |
| 1061 | read_stack_base, |
| 1062 | PrettySize(read_stack_size).c_str(), |
| 1063 | PrettySize(read_guard_size).c_str()); |
| 1064 | |
Ian Rogers | 932746a | 2011-09-22 18:57:50 -0700 | [diff] [blame] | 1065 | // Set stack_end_ to the bottom of the stack saving space of stack overflows |
Mathieu Chartier | 8e219ae | 2014-08-19 14:29:46 -0700 | [diff] [blame] | 1066 | |
| 1067 | Runtime* runtime = Runtime::Current(); |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 1068 | bool implicit_stack_check = !runtime->ExplicitStackOverflowChecks() && !runtime->IsAotCompiler(); |
Andreas Gampe | 7df12cb | 2016-06-10 20:38:55 -0700 | [diff] [blame] | 1069 | |
| 1070 | // Valgrind on arm doesn't give the right values here. Do not install the guard page, and |
| 1071 | // effectively disable stack overflow checks (we'll get segfaults, potentially) by setting |
| 1072 | // stack_begin to 0. |
| 1073 | const bool valgrind_on_arm = |
| 1074 | (kRuntimeISA == kArm || kRuntimeISA == kArm64) && |
| 1075 | kMemoryToolIsValgrind && |
| 1076 | RUNNING_ON_MEMORY_TOOL != 0; |
| 1077 | if (valgrind_on_arm) { |
| 1078 | tlsPtr_.stack_begin = nullptr; |
| 1079 | } |
| 1080 | |
Dave Allison | b090a18 | 2014-08-14 17:02:48 +0000 | [diff] [blame] | 1081 | ResetDefaultStackEnd(); |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 1082 | |
| 1083 | // Install the protected region if we are doing implicit overflow checks. |
Andreas Gampe | 7df12cb | 2016-06-10 20:38:55 -0700 | [diff] [blame] | 1084 | if (implicit_stack_check && !valgrind_on_arm) { |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 1085 | // The thread might have protected region at the bottom. We need |
| 1086 | // to install our own region so we need to move the limits |
| 1087 | // of the stack to make room for it. |
Dave Allison | 216cf23 | 2014-08-18 15:49:51 -0700 | [diff] [blame] | 1088 | |
Elliott Hughes | 6d3fc56 | 2014-08-27 11:47:01 -0700 | [diff] [blame] | 1089 | tlsPtr_.stack_begin += read_guard_size + kStackOverflowProtectedSize; |
| 1090 | tlsPtr_.stack_end += read_guard_size + kStackOverflowProtectedSize; |
| 1091 | tlsPtr_.stack_size -= read_guard_size; |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 1092 | |
| 1093 | InstallImplicitProtection(); |
Dave Allison | f943914 | 2014-03-27 15:10:22 -0700 | [diff] [blame] | 1094 | } |
Elliott Hughes | 449b4bd | 2011-09-09 12:01:38 -0700 | [diff] [blame] | 1095 | |
| 1096 | // Sanity check. |
Andreas Gampe | b87c03f | 2016-06-10 20:34:55 -0700 | [diff] [blame] | 1097 | CHECK_GT(FindStackTop(), reinterpret_cast<void*>(tlsPtr_.stack_end)); |
Ian Rogers | f4d4da1 | 2014-11-11 16:10:33 -0800 | [diff] [blame] | 1098 | |
| 1099 | return true; |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 1100 | } |
| 1101 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1102 | void Thread::ShortDump(std::ostream& os) const { |
| 1103 | os << "Thread["; |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 1104 | if (GetThreadId() != 0) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1105 | // 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] | 1106 | os << GetThreadId() |
Mathieu Chartier | b28412e | 2015-04-24 15:28:36 -0700 | [diff] [blame] | 1107 | << ",tid=" << GetTid() << ','; |
Elliott Hughes | e091855 | 2011-10-28 17:18:29 -0700 | [diff] [blame] | 1108 | } |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 1109 | os << GetState() |
Mathieu Chartier | b28412e | 2015-04-24 15:28:36 -0700 | [diff] [blame] | 1110 | << ",Thread*=" << this |
| 1111 | << ",peer=" << tlsPtr_.opeer |
| 1112 | << ",\"" << (tlsPtr_.name != nullptr ? *tlsPtr_.name : "null") << "\"" |
| 1113 | << "]"; |
Elliott Hughes | a095764 | 2011-09-02 14:27:33 -0700 | [diff] [blame] | 1114 | } |
| 1115 | |
Hiroshi Yamauchi | 13c1635 | 2017-01-31 10:15:08 -0800 | [diff] [blame] | 1116 | void Thread::Dump(std::ostream& os, bool dump_native_stack, BacktraceMap* backtrace_map, |
| 1117 | bool force_dump_stack) const { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1118 | DumpState(os); |
Hiroshi Yamauchi | 13c1635 | 2017-01-31 10:15:08 -0800 | [diff] [blame] | 1119 | DumpStack(os, dump_native_stack, backtrace_map, force_dump_stack); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1120 | } |
| 1121 | |
Andreas Gampe | 08883de | 2016-11-08 13:20:52 -0800 | [diff] [blame] | 1122 | mirror::String* Thread::GetThreadName() const { |
| 1123 | ArtField* f = jni::DecodeArtField(WellKnownClasses::java_lang_Thread_name); |
Mathieu Chartier | 3398c78 | 2016-09-30 10:27:43 -0700 | [diff] [blame] | 1124 | if (tlsPtr_.opeer == nullptr) { |
| 1125 | return nullptr; |
| 1126 | } |
| 1127 | ObjPtr<mirror::Object> name = f->GetObject(tlsPtr_.opeer); |
| 1128 | return name == nullptr ? nullptr : name->AsString(); |
Elliott Hughes | fc86162 | 2011-10-17 17:57:47 -0700 | [diff] [blame] | 1129 | } |
| 1130 | |
Elliott Hughes | ffb465f | 2012-03-01 18:46:05 -0800 | [diff] [blame] | 1131 | void Thread::GetThreadName(std::string& name) const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1132 | name.assign(*tlsPtr_.name); |
Elliott Hughes | ffb465f | 2012-03-01 18:46:05 -0800 | [diff] [blame] | 1133 | } |
| 1134 | |
Jeff Hao | 57dac6e | 2013-08-15 16:36:24 -0700 | [diff] [blame] | 1135 | uint64_t Thread::GetCpuMicroTime() const { |
Elliott Hughes | 0a18df8 | 2015-01-09 15:16:16 -0800 | [diff] [blame] | 1136 | #if defined(__linux__) |
Jeff Hao | 57dac6e | 2013-08-15 16:36:24 -0700 | [diff] [blame] | 1137 | clockid_t cpu_clock_id; |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1138 | pthread_getcpuclockid(tlsPtr_.pthread_self, &cpu_clock_id); |
Jeff Hao | 57dac6e | 2013-08-15 16:36:24 -0700 | [diff] [blame] | 1139 | timespec now; |
| 1140 | clock_gettime(cpu_clock_id, &now); |
Ian Rogers | 0f67847 | 2014-03-10 16:18:37 -0700 | [diff] [blame] | 1141 | return static_cast<uint64_t>(now.tv_sec) * UINT64_C(1000000) + now.tv_nsec / UINT64_C(1000); |
Elliott Hughes | 0a18df8 | 2015-01-09 15:16:16 -0800 | [diff] [blame] | 1142 | #else // __APPLE__ |
Jeff Hao | 57dac6e | 2013-08-15 16:36:24 -0700 | [diff] [blame] | 1143 | UNIMPLEMENTED(WARNING); |
| 1144 | return -1; |
| 1145 | #endif |
| 1146 | } |
| 1147 | |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 1148 | // Attempt to rectify locks so that we dump thread list with required locks before exiting. |
| 1149 | static void UnsafeLogFatalForSuspendCount(Thread* self, Thread* thread) NO_THREAD_SAFETY_ANALYSIS { |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 1150 | LOG(ERROR) << *thread << " suspend count already zero."; |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 1151 | Locks::thread_suspend_count_lock_->Unlock(self); |
| 1152 | if (!Locks::mutator_lock_->IsSharedHeld(self)) { |
| 1153 | Locks::mutator_lock_->SharedTryLock(self); |
| 1154 | if (!Locks::mutator_lock_->IsSharedHeld(self)) { |
| 1155 | LOG(WARNING) << "Dumping thread list without holding mutator_lock_"; |
| 1156 | } |
| 1157 | } |
| 1158 | if (!Locks::thread_list_lock_->IsExclusiveHeld(self)) { |
| 1159 | Locks::thread_list_lock_->TryLock(self); |
| 1160 | if (!Locks::thread_list_lock_->IsExclusiveHeld(self)) { |
| 1161 | LOG(WARNING) << "Dumping thread list without holding thread_list_lock_"; |
| 1162 | } |
| 1163 | } |
| 1164 | std::ostringstream ss; |
Ian Rogers | 7b078e8 | 2014-09-10 14:44:24 -0700 | [diff] [blame] | 1165 | Runtime::Current()->GetThreadList()->Dump(ss); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 1166 | LOG(FATAL) << ss.str(); |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 1167 | } |
| 1168 | |
Hiroshi Yamauchi | 02e7f1a | 2016-10-03 15:32:01 -0700 | [diff] [blame] | 1169 | bool Thread::ModifySuspendCountInternal(Thread* self, |
| 1170 | int delta, |
| 1171 | AtomicInteger* suspend_barrier, |
| 1172 | bool for_debugger) { |
Ian Rogers | 2966e13 | 2014-04-02 08:34:36 -0700 | [diff] [blame] | 1173 | if (kIsDebugBuild) { |
| 1174 | DCHECK(delta == -1 || delta == +1 || delta == -tls32_.debug_suspend_count) |
| 1175 | << delta << " " << tls32_.debug_suspend_count << " " << this; |
| 1176 | DCHECK_GE(tls32_.suspend_count, tls32_.debug_suspend_count) << this; |
| 1177 | Locks::thread_suspend_count_lock_->AssertHeld(self); |
| 1178 | if (this != self && !IsSuspended()) { |
| 1179 | Locks::thread_list_lock_->AssertHeld(self); |
| 1180 | } |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 1181 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1182 | if (UNLIKELY(delta < 0 && tls32_.suspend_count <= 0)) { |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 1183 | UnsafeLogFatalForSuspendCount(self, this); |
Yu Li | eac4424 | 2015-06-29 10:50:03 +0800 | [diff] [blame] | 1184 | return false; |
| 1185 | } |
| 1186 | |
Hiroshi Yamauchi | 02e7f1a | 2016-10-03 15:32:01 -0700 | [diff] [blame] | 1187 | if (kUseReadBarrier && delta > 0 && this != self && tlsPtr_.flip_function != nullptr) { |
| 1188 | // Force retry of a suspend request if it's in the middle of a thread flip to avoid a |
| 1189 | // deadlock. b/31683379. |
| 1190 | return false; |
| 1191 | } |
| 1192 | |
Yu Li | eac4424 | 2015-06-29 10:50:03 +0800 | [diff] [blame] | 1193 | uint16_t flags = kSuspendRequest; |
| 1194 | if (delta > 0 && suspend_barrier != nullptr) { |
| 1195 | uint32_t available_barrier = kMaxSuspendBarriers; |
| 1196 | for (uint32_t i = 0; i < kMaxSuspendBarriers; ++i) { |
| 1197 | if (tlsPtr_.active_suspend_barriers[i] == nullptr) { |
| 1198 | available_barrier = i; |
| 1199 | break; |
| 1200 | } |
| 1201 | } |
| 1202 | if (available_barrier == kMaxSuspendBarriers) { |
| 1203 | // No barrier spaces available, we can't add another. |
| 1204 | return false; |
| 1205 | } |
| 1206 | tlsPtr_.active_suspend_barriers[available_barrier] = suspend_barrier; |
| 1207 | flags |= kActiveSuspendBarrier; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1208 | } |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 1209 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1210 | tls32_.suspend_count += delta; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1211 | if (for_debugger) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1212 | tls32_.debug_suspend_count += delta; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1213 | } |
Ian Rogers | 01ae580 | 2012-09-28 16:14:01 -0700 | [diff] [blame] | 1214 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1215 | if (tls32_.suspend_count == 0) { |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 1216 | AtomicClearFlag(kSuspendRequest); |
| 1217 | } else { |
Yu Li | eac4424 | 2015-06-29 10:50:03 +0800 | [diff] [blame] | 1218 | // Two bits might be set simultaneously. |
| 1219 | tls32_.state_and_flags.as_atomic_int.FetchAndOrSequentiallyConsistent(flags); |
Dave Allison | b373e09 | 2014-02-20 16:06:36 -0800 | [diff] [blame] | 1220 | TriggerSuspend(); |
Ian Rogers | 474b6da | 2012-09-25 00:20:38 -0700 | [diff] [blame] | 1221 | } |
Yu Li | eac4424 | 2015-06-29 10:50:03 +0800 | [diff] [blame] | 1222 | return true; |
| 1223 | } |
| 1224 | |
| 1225 | bool Thread::PassActiveSuspendBarriers(Thread* self) { |
| 1226 | // Grab the suspend_count lock and copy the current set of |
| 1227 | // barriers. Then clear the list and the flag. The ModifySuspendCount |
| 1228 | // function requires the lock so we prevent a race between setting |
| 1229 | // the kActiveSuspendBarrier flag and clearing it. |
| 1230 | AtomicInteger* pass_barriers[kMaxSuspendBarriers]; |
| 1231 | { |
| 1232 | MutexLock mu(self, *Locks::thread_suspend_count_lock_); |
| 1233 | if (!ReadFlag(kActiveSuspendBarrier)) { |
| 1234 | // quick exit test: the barriers have already been claimed - this is |
| 1235 | // possible as there may be a race to claim and it doesn't matter |
| 1236 | // who wins. |
| 1237 | // All of the callers of this function (except the SuspendAllInternal) |
| 1238 | // will first test the kActiveSuspendBarrier flag without lock. Here |
| 1239 | // double-check whether the barrier has been passed with the |
| 1240 | // suspend_count lock. |
| 1241 | return false; |
| 1242 | } |
| 1243 | |
| 1244 | for (uint32_t i = 0; i < kMaxSuspendBarriers; ++i) { |
| 1245 | pass_barriers[i] = tlsPtr_.active_suspend_barriers[i]; |
| 1246 | tlsPtr_.active_suspend_barriers[i] = nullptr; |
| 1247 | } |
| 1248 | AtomicClearFlag(kActiveSuspendBarrier); |
| 1249 | } |
| 1250 | |
| 1251 | uint32_t barrier_count = 0; |
| 1252 | for (uint32_t i = 0; i < kMaxSuspendBarriers; i++) { |
| 1253 | AtomicInteger* pending_threads = pass_barriers[i]; |
| 1254 | if (pending_threads != nullptr) { |
| 1255 | bool done = false; |
| 1256 | do { |
| 1257 | int32_t cur_val = pending_threads->LoadRelaxed(); |
| 1258 | CHECK_GT(cur_val, 0) << "Unexpected value for PassActiveSuspendBarriers(): " << cur_val; |
| 1259 | // Reduce value by 1. |
| 1260 | done = pending_threads->CompareExchangeWeakRelaxed(cur_val, cur_val - 1); |
| 1261 | #if ART_USE_FUTEXES |
| 1262 | if (done && (cur_val - 1) == 0) { // Weak CAS may fail spuriously. |
| 1263 | futex(pending_threads->Address(), FUTEX_WAKE, -1, nullptr, nullptr, 0); |
| 1264 | } |
| 1265 | #endif |
| 1266 | } while (!done); |
| 1267 | ++barrier_count; |
| 1268 | } |
| 1269 | } |
| 1270 | CHECK_GT(barrier_count, 0U); |
| 1271 | return true; |
| 1272 | } |
| 1273 | |
| 1274 | void Thread::ClearSuspendBarrier(AtomicInteger* target) { |
| 1275 | CHECK(ReadFlag(kActiveSuspendBarrier)); |
| 1276 | bool clear_flag = true; |
| 1277 | for (uint32_t i = 0; i < kMaxSuspendBarriers; ++i) { |
| 1278 | AtomicInteger* ptr = tlsPtr_.active_suspend_barriers[i]; |
| 1279 | if (ptr == target) { |
| 1280 | tlsPtr_.active_suspend_barriers[i] = nullptr; |
| 1281 | } else if (ptr != nullptr) { |
| 1282 | clear_flag = false; |
| 1283 | } |
| 1284 | } |
| 1285 | if (LIKELY(clear_flag)) { |
| 1286 | AtomicClearFlag(kActiveSuspendBarrier); |
| 1287 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1288 | } |
| 1289 | |
Mathieu Chartier | 752a0e6 | 2013-06-27 11:03:27 -0700 | [diff] [blame] | 1290 | void Thread::RunCheckpointFunction() { |
Mathieu Chartier | 952e1e3 | 2016-06-13 14:04:02 -0700 | [diff] [blame] | 1291 | bool done = false; |
| 1292 | do { |
| 1293 | // Grab the suspend_count lock and copy the checkpoints one by one. When the last checkpoint is |
| 1294 | // copied, clear the list and the flag. The RequestCheckpoint function will also grab this lock |
| 1295 | // to prevent a race between setting the kCheckpointRequest flag and clearing it. |
| 1296 | Closure* checkpoint = nullptr; |
| 1297 | { |
| 1298 | MutexLock mu(this, *Locks::thread_suspend_count_lock_); |
| 1299 | if (tlsPtr_.checkpoint_function != nullptr) { |
| 1300 | checkpoint = tlsPtr_.checkpoint_function; |
| 1301 | if (!checkpoint_overflow_.empty()) { |
| 1302 | // Overflow list not empty, copy the first one out and continue. |
| 1303 | tlsPtr_.checkpoint_function = checkpoint_overflow_.front(); |
| 1304 | checkpoint_overflow_.pop_front(); |
| 1305 | } else { |
| 1306 | // No overflow checkpoints, this means that we are on the last pending checkpoint. |
| 1307 | tlsPtr_.checkpoint_function = nullptr; |
| 1308 | AtomicClearFlag(kCheckpointRequest); |
| 1309 | done = true; |
| 1310 | } |
| 1311 | } else { |
| 1312 | LOG(FATAL) << "Checkpoint flag set without pending checkpoint"; |
| 1313 | } |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1314 | } |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1315 | |
Mathieu Chartier | 952e1e3 | 2016-06-13 14:04:02 -0700 | [diff] [blame] | 1316 | // Outside the lock, run the checkpoint functions that we collected. |
| 1317 | ScopedTrace trace("Run checkpoint function"); |
| 1318 | DCHECK(checkpoint != nullptr); |
| 1319 | checkpoint->Run(this); |
| 1320 | } while (!done); |
Mathieu Chartier | 752a0e6 | 2013-06-27 11:03:27 -0700 | [diff] [blame] | 1321 | } |
| 1322 | |
Hiroshi Yamauchi | 3049324 | 2016-11-03 13:06:52 -0700 | [diff] [blame] | 1323 | void Thread::RunEmptyCheckpoint() { |
| 1324 | DCHECK_EQ(Thread::Current(), this); |
| 1325 | AtomicClearFlag(kEmptyCheckpointRequest); |
| 1326 | Runtime::Current()->GetThreadList()->EmptyCheckpointBarrier()->Pass(this); |
| 1327 | } |
| 1328 | |
Mathieu Chartier | 0e4627e | 2012-10-23 16:13:36 -0700 | [diff] [blame] | 1329 | bool Thread::RequestCheckpoint(Closure* function) { |
Chris Dearman | 59cde53 | 2013-12-04 18:53:49 -0800 | [diff] [blame] | 1330 | union StateAndFlags old_state_and_flags; |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1331 | old_state_and_flags.as_int = tls32_.state_and_flags.as_int; |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 1332 | if (old_state_and_flags.as_struct.state != kRunnable) { |
| 1333 | return false; // Fail, thread is suspended and so can't run a checkpoint. |
| 1334 | } |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1335 | |
Mathieu Chartier | 858f1c5 | 2012-10-17 17:45:55 -0700 | [diff] [blame] | 1336 | // We must be runnable to request a checkpoint. |
Mathieu Chartier | 5f51d4b | 2013-12-03 14:24:05 -0800 | [diff] [blame] | 1337 | DCHECK_EQ(old_state_and_flags.as_struct.state, kRunnable); |
Chris Dearman | 59cde53 | 2013-12-04 18:53:49 -0800 | [diff] [blame] | 1338 | union StateAndFlags new_state_and_flags; |
| 1339 | new_state_and_flags.as_int = old_state_and_flags.as_int; |
Mathieu Chartier | 858f1c5 | 2012-10-17 17:45:55 -0700 | [diff] [blame] | 1340 | new_state_and_flags.as_struct.flags |= kCheckpointRequest; |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1341 | bool success = tls32_.state_and_flags.as_atomic_int.CompareExchangeStrongSequentiallyConsistent( |
Mathieu Chartier | 2cebb24 | 2015-04-21 16:50:40 -0700 | [diff] [blame] | 1342 | old_state_and_flags.as_int, new_state_and_flags.as_int); |
Mathieu Chartier | 952e1e3 | 2016-06-13 14:04:02 -0700 | [diff] [blame] | 1343 | if (success) { |
| 1344 | // Succeeded setting checkpoint flag, now insert the actual checkpoint. |
| 1345 | if (tlsPtr_.checkpoint_function == nullptr) { |
| 1346 | tlsPtr_.checkpoint_function = function; |
| 1347 | } else { |
| 1348 | checkpoint_overflow_.push_back(function); |
| 1349 | } |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1350 | CHECK_EQ(ReadFlag(kCheckpointRequest), true); |
Dave Allison | b373e09 | 2014-02-20 16:06:36 -0800 | [diff] [blame] | 1351 | TriggerSuspend(); |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 1352 | } |
Ian Rogers | 8c1b5f7 | 2014-07-09 22:02:36 -0700 | [diff] [blame] | 1353 | return success; |
Mathieu Chartier | 858f1c5 | 2012-10-17 17:45:55 -0700 | [diff] [blame] | 1354 | } |
| 1355 | |
Hiroshi Yamauchi | 3049324 | 2016-11-03 13:06:52 -0700 | [diff] [blame] | 1356 | bool Thread::RequestEmptyCheckpoint() { |
| 1357 | union StateAndFlags old_state_and_flags; |
| 1358 | old_state_and_flags.as_int = tls32_.state_and_flags.as_int; |
| 1359 | if (old_state_and_flags.as_struct.state != kRunnable) { |
| 1360 | // If it's not runnable, we don't need to do anything because it won't be in the middle of a |
| 1361 | // heap access (eg. the read barrier). |
| 1362 | return false; |
| 1363 | } |
| 1364 | |
| 1365 | // We must be runnable to request a checkpoint. |
| 1366 | DCHECK_EQ(old_state_and_flags.as_struct.state, kRunnable); |
| 1367 | union StateAndFlags new_state_and_flags; |
| 1368 | new_state_and_flags.as_int = old_state_and_flags.as_int; |
| 1369 | new_state_and_flags.as_struct.flags |= kEmptyCheckpointRequest; |
| 1370 | bool success = tls32_.state_and_flags.as_atomic_int.CompareExchangeStrongSequentiallyConsistent( |
| 1371 | old_state_and_flags.as_int, new_state_and_flags.as_int); |
| 1372 | if (success) { |
| 1373 | TriggerSuspend(); |
| 1374 | } |
| 1375 | return success; |
| 1376 | } |
| 1377 | |
Andreas Gampe | e9f6712 | 2016-10-27 19:21:23 -0700 | [diff] [blame] | 1378 | class BarrierClosure : public Closure { |
| 1379 | public: |
| 1380 | explicit BarrierClosure(Closure* wrapped) : wrapped_(wrapped), barrier_(0) {} |
| 1381 | |
| 1382 | void Run(Thread* self) OVERRIDE { |
| 1383 | wrapped_->Run(self); |
| 1384 | barrier_.Pass(self); |
| 1385 | } |
| 1386 | |
| 1387 | void Wait(Thread* self) { |
| 1388 | barrier_.Increment(self, 1); |
| 1389 | } |
| 1390 | |
| 1391 | private: |
| 1392 | Closure* wrapped_; |
| 1393 | Barrier barrier_; |
| 1394 | }; |
| 1395 | |
| 1396 | void Thread::RequestSynchronousCheckpoint(Closure* function) { |
| 1397 | if (this == Thread::Current()) { |
| 1398 | // Asked to run on this thread. Just run. |
| 1399 | function->Run(this); |
| 1400 | return; |
| 1401 | } |
| 1402 | Thread* self = Thread::Current(); |
| 1403 | |
| 1404 | // The current thread is not this thread. |
| 1405 | |
| 1406 | for (;;) { |
| 1407 | // If this thread is runnable, try to schedule a checkpoint. Do some gymnastics to not hold the |
| 1408 | // suspend-count lock for too long. |
| 1409 | if (GetState() == ThreadState::kRunnable) { |
| 1410 | BarrierClosure barrier_closure(function); |
| 1411 | bool installed = false; |
| 1412 | { |
| 1413 | MutexLock mu(self, *Locks::thread_suspend_count_lock_); |
| 1414 | installed = RequestCheckpoint(&barrier_closure); |
| 1415 | } |
| 1416 | if (installed) { |
| 1417 | barrier_closure.Wait(self); |
| 1418 | return; |
| 1419 | } |
| 1420 | // Fall-through. |
| 1421 | } |
| 1422 | |
| 1423 | // This thread is not runnable, make sure we stay suspended, then run the checkpoint. |
| 1424 | // Note: ModifySuspendCountInternal also expects the thread_list_lock to be held in |
| 1425 | // certain situations. |
| 1426 | { |
| 1427 | MutexLock mu(self, *Locks::thread_list_lock_); |
| 1428 | MutexLock mu2(self, *Locks::thread_suspend_count_lock_); |
| 1429 | |
| 1430 | if (!ModifySuspendCount(self, +1, nullptr, false)) { |
| 1431 | // Just retry the loop. |
| 1432 | sched_yield(); |
| 1433 | continue; |
| 1434 | } |
| 1435 | } |
| 1436 | |
| 1437 | while (GetState() == ThreadState::kRunnable) { |
| 1438 | // We became runnable again. Wait till the suspend triggered in ModifySuspendCount |
| 1439 | // moves us to suspended. |
| 1440 | sched_yield(); |
| 1441 | } |
| 1442 | |
| 1443 | function->Run(this); |
| 1444 | |
| 1445 | { |
| 1446 | MutexLock mu(self, *Locks::thread_list_lock_); |
| 1447 | MutexLock mu2(self, *Locks::thread_suspend_count_lock_); |
| 1448 | |
| 1449 | DCHECK_NE(GetState(), ThreadState::kRunnable); |
| 1450 | CHECK(ModifySuspendCount(self, -1, nullptr, false)); |
| 1451 | } |
| 1452 | |
| 1453 | return; // We're done, break out of the loop. |
| 1454 | } |
| 1455 | } |
| 1456 | |
Hiroshi Yamauchi | 2cd334a | 2015-01-09 14:03:35 -0800 | [diff] [blame] | 1457 | Closure* Thread::GetFlipFunction() { |
| 1458 | Atomic<Closure*>* atomic_func = reinterpret_cast<Atomic<Closure*>*>(&tlsPtr_.flip_function); |
| 1459 | Closure* func; |
| 1460 | do { |
| 1461 | func = atomic_func->LoadRelaxed(); |
| 1462 | if (func == nullptr) { |
| 1463 | return nullptr; |
| 1464 | } |
| 1465 | } while (!atomic_func->CompareExchangeWeakSequentiallyConsistent(func, nullptr)); |
| 1466 | DCHECK(func != nullptr); |
| 1467 | return func; |
| 1468 | } |
| 1469 | |
| 1470 | void Thread::SetFlipFunction(Closure* function) { |
| 1471 | CHECK(function != nullptr); |
| 1472 | Atomic<Closure*>* atomic_func = reinterpret_cast<Atomic<Closure*>*>(&tlsPtr_.flip_function); |
| 1473 | atomic_func->StoreSequentiallyConsistent(function); |
| 1474 | } |
| 1475 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1476 | void Thread::FullSuspendCheck() { |
Mathieu Chartier | 32ce2ad | 2016-03-04 14:58:03 -0800 | [diff] [blame] | 1477 | ScopedTrace trace(__FUNCTION__); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1478 | VLOG(threads) << this << " self-suspending"; |
| 1479 | // Make thread appear suspended to other threads, release mutator_lock_. |
Mathieu Chartier | f1d666e | 2015-09-03 16:13:34 -0700 | [diff] [blame] | 1480 | // Transition to suspended and back to runnable, re-acquire share on mutator_lock_. |
| 1481 | ScopedThreadSuspension(this, kSuspended); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1482 | VLOG(threads) << this << " self-reviving"; |
| 1483 | } |
| 1484 | |
Andreas Gampe | 9186ced | 2016-12-12 14:28:21 -0800 | [diff] [blame] | 1485 | static std::string GetSchedulerGroupName(pid_t tid) { |
| 1486 | // /proc/<pid>/cgroup looks like this: |
| 1487 | // 2:devices:/ |
| 1488 | // 1:cpuacct,cpu:/ |
| 1489 | // We want the third field from the line whose second field contains the "cpu" token. |
| 1490 | std::string cgroup_file; |
| 1491 | if (!ReadFileToString(StringPrintf("/proc/self/task/%d/cgroup", tid), &cgroup_file)) { |
| 1492 | return ""; |
| 1493 | } |
| 1494 | std::vector<std::string> cgroup_lines; |
| 1495 | Split(cgroup_file, '\n', &cgroup_lines); |
| 1496 | for (size_t i = 0; i < cgroup_lines.size(); ++i) { |
| 1497 | std::vector<std::string> cgroup_fields; |
| 1498 | Split(cgroup_lines[i], ':', &cgroup_fields); |
| 1499 | std::vector<std::string> cgroups; |
| 1500 | Split(cgroup_fields[1], ',', &cgroups); |
| 1501 | for (size_t j = 0; j < cgroups.size(); ++j) { |
| 1502 | if (cgroups[j] == "cpu") { |
| 1503 | return cgroup_fields[2].substr(1); // Skip the leading slash. |
| 1504 | } |
| 1505 | } |
| 1506 | } |
| 1507 | return ""; |
| 1508 | } |
| 1509 | |
| 1510 | |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 1511 | void Thread::DumpState(std::ostream& os, const Thread* thread, pid_t tid) { |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 1512 | std::string group_name; |
| 1513 | int priority; |
| 1514 | bool is_daemon = false; |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 1515 | Thread* self = Thread::Current(); |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 1516 | |
Hiroshi Yamauchi | 2cd334a | 2015-01-09 14:03:35 -0800 | [diff] [blame] | 1517 | // If flip_function is not null, it means we have run a checkpoint |
| 1518 | // before the thread wakes up to execute the flip function and the |
| 1519 | // thread roots haven't been forwarded. So the following access to |
| 1520 | // the roots (opeer or methods in the frames) would be bad. Run it |
| 1521 | // here. TODO: clean up. |
| 1522 | if (thread != nullptr) { |
| 1523 | ScopedObjectAccessUnchecked soa(self); |
| 1524 | Thread* this_thread = const_cast<Thread*>(thread); |
| 1525 | Closure* flip_func = this_thread->GetFlipFunction(); |
| 1526 | if (flip_func != nullptr) { |
| 1527 | flip_func->Run(this_thread); |
| 1528 | } |
| 1529 | } |
| 1530 | |
Mathieu Chartier | c7a966d | 2014-04-10 18:06:32 -0700 | [diff] [blame] | 1531 | // Don't do this if we are aborting since the GC may have all the threads suspended. This will |
| 1532 | // cause ScopedObjectAccessUnchecked to deadlock. |
Nicolas Geoffray | db97871 | 2014-12-09 13:33:38 +0000 | [diff] [blame] | 1533 | if (gAborting == 0 && self != nullptr && thread != nullptr && thread->tlsPtr_.opeer != nullptr) { |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 1534 | ScopedObjectAccessUnchecked soa(self); |
Andreas Gampe | 08883de | 2016-11-08 13:20:52 -0800 | [diff] [blame] | 1535 | priority = jni::DecodeArtField(WellKnownClasses::java_lang_Thread_priority) |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1536 | ->GetInt(thread->tlsPtr_.opeer); |
Andreas Gampe | 08883de | 2016-11-08 13:20:52 -0800 | [diff] [blame] | 1537 | is_daemon = jni::DecodeArtField(WellKnownClasses::java_lang_Thread_daemon) |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1538 | ->GetBoolean(thread->tlsPtr_.opeer); |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 1539 | |
Mathieu Chartier | 3398c78 | 2016-09-30 10:27:43 -0700 | [diff] [blame] | 1540 | ObjPtr<mirror::Object> thread_group = |
Andreas Gampe | 08883de | 2016-11-08 13:20:52 -0800 | [diff] [blame] | 1541 | jni::DecodeArtField(WellKnownClasses::java_lang_Thread_group) |
| 1542 | ->GetObject(thread->tlsPtr_.opeer); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 1543 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1544 | if (thread_group != nullptr) { |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1545 | ArtField* group_name_field = |
Andreas Gampe | 08883de | 2016-11-08 13:20:52 -0800 | [diff] [blame] | 1546 | jni::DecodeArtField(WellKnownClasses::java_lang_ThreadGroup_name); |
Mathieu Chartier | 3398c78 | 2016-09-30 10:27:43 -0700 | [diff] [blame] | 1547 | ObjPtr<mirror::String> group_name_string = |
| 1548 | group_name_field->GetObject(thread_group)->AsString(); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1549 | group_name = (group_name_string != nullptr) ? group_name_string->ToModifiedUtf8() : "<null>"; |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 1550 | } |
| 1551 | } else { |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 1552 | priority = GetNativePriority(); |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 1553 | } |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 1554 | |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 1555 | std::string scheduler_group_name(GetSchedulerGroupName(tid)); |
Elliott Hughes | 1bac54f | 2012-03-16 12:48:31 -0700 | [diff] [blame] | 1556 | if (scheduler_group_name.empty()) { |
| 1557 | scheduler_group_name = "default"; |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 1558 | } |
| 1559 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1560 | if (thread != nullptr) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1561 | os << '"' << *thread->tlsPtr_.name << '"'; |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 1562 | if (is_daemon) { |
| 1563 | os << " daemon"; |
| 1564 | } |
| 1565 | os << " prio=" << priority |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 1566 | << " tid=" << thread->GetThreadId() |
Elliott Hughes | 80537bb | 2013-01-04 16:37:26 -0800 | [diff] [blame] | 1567 | << " " << thread->GetState(); |
| 1568 | if (thread->IsStillStarting()) { |
| 1569 | os << " (still starting up)"; |
| 1570 | } |
| 1571 | os << "\n"; |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 1572 | } else { |
Elliott Hughes | 289be85 | 2012-06-12 13:57:20 -0700 | [diff] [blame] | 1573 | os << '"' << ::art::GetThreadName(tid) << '"' |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 1574 | << " prio=" << priority |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 1575 | << " (not attached)\n"; |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 1576 | } |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 1577 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1578 | if (thread != nullptr) { |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 1579 | MutexLock mu(self, *Locks::thread_suspend_count_lock_); |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 1580 | os << " | group=\"" << group_name << "\"" |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1581 | << " sCount=" << thread->tls32_.suspend_count |
| 1582 | << " dsCount=" << thread->tls32_.debug_suspend_count |
Hiroshi Yamauchi | a82769c | 2016-12-02 17:01:51 -0800 | [diff] [blame] | 1583 | << " flags=" << thread->tls32_.state_and_flags.as_struct.flags |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1584 | << " obj=" << reinterpret_cast<void*>(thread->tlsPtr_.opeer) |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 1585 | << " self=" << reinterpret_cast<const void*>(thread) << "\n"; |
| 1586 | } |
Elliott Hughes | 0d39c12 | 2012-06-06 16:41:17 -0700 | [diff] [blame] | 1587 | |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 1588 | os << " | sysTid=" << tid |
| 1589 | << " nice=" << getpriority(PRIO_PROCESS, tid) |
Elliott Hughes | 0d39c12 | 2012-06-06 16:41:17 -0700 | [diff] [blame] | 1590 | << " cgrp=" << scheduler_group_name; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1591 | if (thread != nullptr) { |
Elliott Hughes | 0d39c12 | 2012-06-06 16:41:17 -0700 | [diff] [blame] | 1592 | int policy; |
| 1593 | sched_param sp; |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1594 | CHECK_PTHREAD_CALL(pthread_getschedparam, (thread->tlsPtr_.pthread_self, &policy, &sp), |
| 1595 | __FUNCTION__); |
Elliott Hughes | 0d39c12 | 2012-06-06 16:41:17 -0700 | [diff] [blame] | 1596 | os << " sched=" << policy << "/" << sp.sched_priority |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1597 | << " handle=" << reinterpret_cast<void*>(thread->tlsPtr_.pthread_self); |
Elliott Hughes | 0d39c12 | 2012-06-06 16:41:17 -0700 | [diff] [blame] | 1598 | } |
| 1599 | os << "\n"; |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 1600 | |
| 1601 | // Grab the scheduler stats for this thread. |
| 1602 | std::string scheduler_stats; |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 1603 | if (ReadFileToString(StringPrintf("/proc/self/task/%d/schedstat", tid), &scheduler_stats)) { |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 1604 | scheduler_stats.resize(scheduler_stats.size() - 1); // Lose the trailing '\n'. |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 1605 | } else { |
| 1606 | scheduler_stats = "0 0 0"; |
| 1607 | } |
| 1608 | |
Elliott Hughes | ba0b9c5 | 2012-09-20 11:25:12 -0700 | [diff] [blame] | 1609 | char native_thread_state = '?'; |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 1610 | int utime = 0; |
| 1611 | int stime = 0; |
| 1612 | int task_cpu = 0; |
Brian Carlstrom | 2921201 | 2013-09-12 22:18:30 -0700 | [diff] [blame] | 1613 | GetTaskStats(tid, &native_thread_state, &utime, &stime, &task_cpu); |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 1614 | |
Elliott Hughes | ba0b9c5 | 2012-09-20 11:25:12 -0700 | [diff] [blame] | 1615 | os << " | state=" << native_thread_state |
| 1616 | << " schedstat=( " << scheduler_stats << " )" |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 1617 | << " utm=" << utime |
| 1618 | << " stm=" << stime |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 1619 | << " core=" << task_cpu |
| 1620 | << " HZ=" << sysconf(_SC_CLK_TCK) << "\n"; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1621 | if (thread != nullptr) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1622 | os << " | stack=" << reinterpret_cast<void*>(thread->tlsPtr_.stack_begin) << "-" |
| 1623 | << reinterpret_cast<void*>(thread->tlsPtr_.stack_end) << " stackSize=" |
| 1624 | << PrettySize(thread->tlsPtr_.stack_size) << "\n"; |
Mathieu Chartier | 9db911e | 2014-06-04 11:23:58 -0700 | [diff] [blame] | 1625 | // Dump the held mutexes. |
| 1626 | os << " | held mutexes="; |
| 1627 | for (size_t i = 0; i < kLockLevelCount; ++i) { |
| 1628 | if (i != kMonitorLock) { |
| 1629 | BaseMutex* mutex = thread->GetHeldMutex(static_cast<LockLevel>(i)); |
| 1630 | if (mutex != nullptr) { |
| 1631 | os << " \"" << mutex->GetName() << "\""; |
| 1632 | if (mutex->IsReaderWriterMutex()) { |
| 1633 | ReaderWriterMutex* rw_mutex = down_cast<ReaderWriterMutex*>(mutex); |
Ian Rogers | a9d8c4c | 2014-07-07 21:38:36 -0700 | [diff] [blame] | 1634 | if (rw_mutex->GetExclusiveOwnerTid() == static_cast<uint64_t>(tid)) { |
Mathieu Chartier | 9db911e | 2014-06-04 11:23:58 -0700 | [diff] [blame] | 1635 | os << "(exclusive held)"; |
| 1636 | } else { |
Mathieu Chartier | 9db911e | 2014-06-04 11:23:58 -0700 | [diff] [blame] | 1637 | os << "(shared held)"; |
| 1638 | } |
| 1639 | } |
| 1640 | } |
| 1641 | } |
| 1642 | } |
| 1643 | os << "\n"; |
Elliott Hughes | abbe07d | 2012-06-05 17:42:23 -0700 | [diff] [blame] | 1644 | } |
| 1645 | } |
| 1646 | |
| 1647 | void Thread::DumpState(std::ostream& os) const { |
| 1648 | Thread::DumpState(os, this, GetTid()); |
Elliott Hughes | d92bec4 | 2011-09-02 17:04:36 -0700 | [diff] [blame] | 1649 | } |
| 1650 | |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1651 | struct StackDumpVisitor : public StackVisitor { |
Hiroshi Yamauchi | 02f365f | 2017-02-03 15:06:00 -0800 | [diff] [blame] | 1652 | StackDumpVisitor(std::ostream& os_in, |
| 1653 | Thread* thread_in, |
| 1654 | Context* context, |
| 1655 | bool can_allocate_in, |
| 1656 | bool check_suspended = true, |
| 1657 | bool dump_locks_in = true) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 1658 | REQUIRES_SHARED(Locks::mutator_lock_) |
Hiroshi Yamauchi | 02f365f | 2017-02-03 15:06:00 -0800 | [diff] [blame] | 1659 | : StackVisitor(thread_in, |
| 1660 | context, |
| 1661 | StackVisitor::StackWalkKind::kIncludeInlinedFrames, |
| 1662 | check_suspended), |
Nicolas Geoffray | 8e5bd18 | 2015-05-06 11:34:34 +0100 | [diff] [blame] | 1663 | os(os_in), |
Nicolas Geoffray | 8e5bd18 | 2015-05-06 11:34:34 +0100 | [diff] [blame] | 1664 | can_allocate(can_allocate_in), |
| 1665 | last_method(nullptr), |
| 1666 | last_line_number(0), |
| 1667 | repetition_count(0), |
Hiroshi Yamauchi | 02f365f | 2017-02-03 15:06:00 -0800 | [diff] [blame] | 1668 | frame_count(0), |
| 1669 | dump_locks(dump_locks_in) {} |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 1670 | |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 1671 | virtual ~StackDumpVisitor() { |
Elliott Hughes | e85d2e9 | 2012-05-01 14:02:10 -0700 | [diff] [blame] | 1672 | if (frame_count == 0) { |
| 1673 | os << " (no managed stack frames)\n"; |
| 1674 | } |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 1675 | } |
| 1676 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 1677 | bool VisitFrame() REQUIRES_SHARED(Locks::mutator_lock_) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1678 | ArtMethod* m = GetMethod(); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 1679 | if (m->IsRuntimeMethod()) { |
Elliott Hughes | 530fa00 | 2012-03-12 11:44:49 -0700 | [diff] [blame] | 1680 | return true; |
Ian Rogers | 9086572 | 2011-09-19 11:11:44 -0700 | [diff] [blame] | 1681 | } |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 1682 | m = m->GetInterfaceMethodIfProxy(kRuntimePointerSize); |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 1683 | const int kMaxRepetition = 3; |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 1684 | ObjPtr<mirror::Class> c = m->GetDeclaringClass(); |
| 1685 | ObjPtr<mirror::DexCache> dex_cache = c->GetDexCache(); |
Ian Rogers | b861dc0 | 2011-11-14 17:00:05 -0800 | [diff] [blame] | 1686 | int line_number = -1; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1687 | if (dex_cache != nullptr) { // be tolerant of bad input |
David Sehr | 9323e6e | 2016-09-13 08:58:35 -0700 | [diff] [blame] | 1688 | const DexFile* dex_file = dex_cache->GetDexFile(); |
| 1689 | line_number = annotations::GetLineNumFromPC(dex_file, m, GetDexPc(false)); |
Ian Rogers | b861dc0 | 2011-11-14 17:00:05 -0800 | [diff] [blame] | 1690 | } |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 1691 | if (line_number == last_line_number && last_method == m) { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1692 | ++repetition_count; |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 1693 | } else { |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 1694 | if (repetition_count >= kMaxRepetition) { |
| 1695 | os << " ... repeated " << (repetition_count - kMaxRepetition) << " times\n"; |
| 1696 | } |
| 1697 | repetition_count = 0; |
| 1698 | last_line_number = line_number; |
| 1699 | last_method = m; |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 1700 | } |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 1701 | if (repetition_count < kMaxRepetition) { |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 1702 | os << " at " << m->PrettyMethod(false); |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 1703 | if (m->IsNative()) { |
| 1704 | os << "(Native method)"; |
| 1705 | } else { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 1706 | const char* source_file(m->GetDeclaringClassSourceFile()); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1707 | os << "(" << (source_file != nullptr ? source_file : "unavailable") |
Brian Carlstrom | 2e450bf | 2013-09-06 15:39:46 -0700 | [diff] [blame] | 1708 | << ":" << line_number << ")"; |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 1709 | } |
| 1710 | os << "\n"; |
Elliott Hughes | 08fc03a | 2012-06-26 17:34:00 -0700 | [diff] [blame] | 1711 | if (frame_count == 0) { |
Sebastien Hertz | 26f7286 | 2015-09-15 09:52:07 +0200 | [diff] [blame] | 1712 | Monitor::DescribeWait(os, GetThread()); |
Elliott Hughes | 08fc03a | 2012-06-26 17:34:00 -0700 | [diff] [blame] | 1713 | } |
Hiroshi Yamauchi | 02f365f | 2017-02-03 15:06:00 -0800 | [diff] [blame] | 1714 | if (can_allocate && dump_locks) { |
Andreas Gampe | 956a522 | 2014-08-16 13:41:10 -0700 | [diff] [blame] | 1715 | // Visit locks, but do not abort on errors. This would trigger a nested abort. |
Hiroshi Yamauchi | 02f365f | 2017-02-03 15:06:00 -0800 | [diff] [blame] | 1716 | // Skip visiting locks if dump_locks is false as it would cause a bad_mutexes_held in |
| 1717 | // RegTypeCache::RegTypeCache due to thread_list_lock. |
Andreas Gampe | 956a522 | 2014-08-16 13:41:10 -0700 | [diff] [blame] | 1718 | Monitor::VisitLocks(this, DumpLockedObject, &os, false); |
Elliott Hughes | 08fc03a | 2012-06-26 17:34:00 -0700 | [diff] [blame] | 1719 | } |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 1720 | } |
Elliott Hughes | 8e4aac5 | 2011-09-26 17:03:36 -0700 | [diff] [blame] | 1721 | |
Elliott Hughes | 08fc03a | 2012-06-26 17:34:00 -0700 | [diff] [blame] | 1722 | ++frame_count; |
Elliott Hughes | 530fa00 | 2012-03-12 11:44:49 -0700 | [diff] [blame] | 1723 | return true; |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 1724 | } |
Elliott Hughes | 4993bbc | 2013-01-10 15:41:25 -0800 | [diff] [blame] | 1725 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1726 | static void DumpLockedObject(mirror::Object* o, void* context) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 1727 | REQUIRES_SHARED(Locks::mutator_lock_) { |
Elliott Hughes | 4993bbc | 2013-01-10 15:41:25 -0800 | [diff] [blame] | 1728 | std::ostream& os = *reinterpret_cast<std::ostream*>(context); |
Ian Rogers | d803bc7 | 2014-04-01 15:33:03 -0700 | [diff] [blame] | 1729 | os << " - locked "; |
| 1730 | if (o == nullptr) { |
| 1731 | os << "an unknown object"; |
| 1732 | } else { |
Hiroshi Yamauchi | ee23582 | 2016-08-19 17:03:27 -0700 | [diff] [blame] | 1733 | if (kUseReadBarrier && Thread::Current()->GetIsGcMarking()) { |
| 1734 | // We may call Thread::Dump() in the middle of the CC thread flip and this thread's stack |
| 1735 | // may have not been flipped yet and "o" may be a from-space (stale) ref, in which case the |
| 1736 | // IdentityHashCode call below will crash. So explicitly mark/forward it here. |
| 1737 | o = ReadBarrier::Mark(o); |
| 1738 | } |
Mathieu Chartier | 4d7f61d | 2014-04-17 14:43:39 -0700 | [diff] [blame] | 1739 | if ((o->GetLockWord(false).GetState() == LockWord::kThinLocked) && |
Ian Rogers | d803bc7 | 2014-04-01 15:33:03 -0700 | [diff] [blame] | 1740 | Locks::mutator_lock_->IsExclusiveHeld(Thread::Current())) { |
| 1741 | // Getting the identity hashcode here would result in lock inflation and suspension of the |
| 1742 | // current thread, which isn't safe if this is the only runnable thread. |
| 1743 | os << StringPrintf("<@addr=0x%" PRIxPTR "> (a %s)", reinterpret_cast<intptr_t>(o), |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 1744 | o->PrettyTypeOf().c_str()); |
Ian Rogers | d803bc7 | 2014-04-01 15:33:03 -0700 | [diff] [blame] | 1745 | } else { |
Mathieu Chartier | e6a8eec | 2015-01-06 14:17:57 -0800 | [diff] [blame] | 1746 | // IdentityHashCode can cause thread suspension, which would invalidate o if it moved. So |
| 1747 | // we get the pretty type beofre we call IdentityHashCode. |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 1748 | const std::string pretty_type(o->PrettyTypeOf()); |
Mathieu Chartier | e6a8eec | 2015-01-06 14:17:57 -0800 | [diff] [blame] | 1749 | os << StringPrintf("<0x%08x> (a %s)", o->IdentityHashCode(), pretty_type.c_str()); |
Ian Rogers | d803bc7 | 2014-04-01 15:33:03 -0700 | [diff] [blame] | 1750 | } |
| 1751 | } |
| 1752 | os << "\n"; |
Elliott Hughes | 4993bbc | 2013-01-10 15:41:25 -0800 | [diff] [blame] | 1753 | } |
| 1754 | |
Elliott Hughes | 08fc03a | 2012-06-26 17:34:00 -0700 | [diff] [blame] | 1755 | std::ostream& os; |
Ian Rogers | 0878d65 | 2013-04-18 17:38:35 -0700 | [diff] [blame] | 1756 | const bool can_allocate; |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1757 | ArtMethod* last_method; |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 1758 | int last_line_number; |
| 1759 | int repetition_count; |
Elliott Hughes | 8e4aac5 | 2011-09-26 17:03:36 -0700 | [diff] [blame] | 1760 | int frame_count; |
Hiroshi Yamauchi | 02f365f | 2017-02-03 15:06:00 -0800 | [diff] [blame] | 1761 | const bool dump_locks; |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 1762 | }; |
| 1763 | |
Ian Rogers | 33e9566 | 2013-05-20 20:29:14 -0700 | [diff] [blame] | 1764 | static bool ShouldShowNativeStack(const Thread* thread) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 1765 | REQUIRES_SHARED(Locks::mutator_lock_) { |
Elliott Hughes | aef701d | 2013-04-05 18:15:40 -0700 | [diff] [blame] | 1766 | ThreadState state = thread->GetState(); |
| 1767 | |
| 1768 | // In native code somewhere in the VM (one of the kWaitingFor* states)? That's interesting. |
| 1769 | if (state > kWaiting && state < kStarting) { |
| 1770 | return true; |
| 1771 | } |
| 1772 | |
| 1773 | // In an Object.wait variant or Thread.sleep? That's not interesting. |
| 1774 | if (state == kTimedWaiting || state == kSleeping || state == kWaiting) { |
| 1775 | return false; |
| 1776 | } |
| 1777 | |
Christopher Ferris | 2366f4e | 2014-09-19 17:23:59 -0700 | [diff] [blame] | 1778 | // Threads with no managed stack frames should be shown. |
| 1779 | const ManagedStack* managed_stack = thread->GetManagedStack(); |
Mathieu Chartier | 2cebb24 | 2015-04-21 16:50:40 -0700 | [diff] [blame] | 1780 | if (managed_stack == nullptr || (managed_stack->GetTopQuickFrame() == nullptr && |
| 1781 | managed_stack->GetTopShadowFrame() == nullptr)) { |
Christopher Ferris | 2366f4e | 2014-09-19 17:23:59 -0700 | [diff] [blame] | 1782 | return true; |
| 1783 | } |
| 1784 | |
Elliott Hughes | aef701d | 2013-04-05 18:15:40 -0700 | [diff] [blame] | 1785 | // In some other native method? That's interesting. |
| 1786 | // We don't just check kNative because native methods will be in state kSuspended if they're |
| 1787 | // calling back into the VM, or kBlocked if they're blocked on a monitor, or one of the |
| 1788 | // thread-startup states if it's early enough in their life cycle (http://b/7432159). |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1789 | ArtMethod* current_method = thread->GetCurrentMethod(nullptr); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1790 | return current_method != nullptr && current_method->IsNative(); |
Elliott Hughes | aef701d | 2013-04-05 18:15:40 -0700 | [diff] [blame] | 1791 | } |
| 1792 | |
Hiroshi Yamauchi | 02f365f | 2017-02-03 15:06:00 -0800 | [diff] [blame] | 1793 | void Thread::DumpJavaStack(std::ostream& os, bool check_suspended, bool dump_locks) const { |
Hiroshi Yamauchi | 2cd334a | 2015-01-09 14:03:35 -0800 | [diff] [blame] | 1794 | // If flip_function is not null, it means we have run a checkpoint |
| 1795 | // before the thread wakes up to execute the flip function and the |
| 1796 | // thread roots haven't been forwarded. So the following access to |
| 1797 | // the roots (locks or methods in the frames) would be bad. Run it |
| 1798 | // here. TODO: clean up. |
| 1799 | { |
| 1800 | Thread* this_thread = const_cast<Thread*>(this); |
| 1801 | Closure* flip_func = this_thread->GetFlipFunction(); |
| 1802 | if (flip_func != nullptr) { |
| 1803 | flip_func->Run(this_thread); |
| 1804 | } |
| 1805 | } |
| 1806 | |
Andreas Gampe | 986c6fb | 2014-10-02 21:00:06 -0700 | [diff] [blame] | 1807 | // Dumping the Java stack involves the verifier for locks. The verifier operates under the |
| 1808 | // assumption that there is no exception pending on entry. Thus, stash any pending exception. |
Mathieu Chartier | bef89c9 | 2015-01-09 09:46:49 -0800 | [diff] [blame] | 1809 | // Thread::Current() instead of this in case a thread is dumping the stack of another suspended |
| 1810 | // thread. |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 1811 | StackHandleScope<1> scope(Thread::Current()); |
Andreas Gampe | 986c6fb | 2014-10-02 21:00:06 -0700 | [diff] [blame] | 1812 | Handle<mirror::Throwable> exc; |
Andreas Gampe | 986c6fb | 2014-10-02 21:00:06 -0700 | [diff] [blame] | 1813 | bool have_exception = false; |
| 1814 | if (IsExceptionPending()) { |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 1815 | exc = scope.NewHandle(GetException()); |
Andreas Gampe | 986c6fb | 2014-10-02 21:00:06 -0700 | [diff] [blame] | 1816 | const_cast<Thread*>(this)->ClearException(); |
| 1817 | have_exception = true; |
| 1818 | } |
| 1819 | |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 1820 | std::unique_ptr<Context> context(Context::Create()); |
Mathieu Chartier | c751fdc | 2014-03-30 15:25:44 -0700 | [diff] [blame] | 1821 | StackDumpVisitor dumper(os, const_cast<Thread*>(this), context.get(), |
Hiroshi Yamauchi | 02f365f | 2017-02-03 15:06:00 -0800 | [diff] [blame] | 1822 | !tls32_.throwing_OutOfMemoryError, check_suspended, dump_locks); |
Mathieu Chartier | c751fdc | 2014-03-30 15:25:44 -0700 | [diff] [blame] | 1823 | dumper.WalkStack(); |
Andreas Gampe | 986c6fb | 2014-10-02 21:00:06 -0700 | [diff] [blame] | 1824 | |
| 1825 | if (have_exception) { |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 1826 | const_cast<Thread*>(this)->SetException(exc.Get()); |
Andreas Gampe | 986c6fb | 2014-10-02 21:00:06 -0700 | [diff] [blame] | 1827 | } |
Mathieu Chartier | c751fdc | 2014-03-30 15:25:44 -0700 | [diff] [blame] | 1828 | } |
| 1829 | |
Nicolas Geoffray | a73280d | 2016-02-15 13:05:16 +0000 | [diff] [blame] | 1830 | void Thread::DumpStack(std::ostream& os, |
| 1831 | bool dump_native_stack, |
Hiroshi Yamauchi | 13c1635 | 2017-01-31 10:15:08 -0800 | [diff] [blame] | 1832 | BacktraceMap* backtrace_map, |
| 1833 | bool force_dump_stack) const { |
Jeff Hao | ed1790e | 2013-04-12 09:58:14 -0700 | [diff] [blame] | 1834 | // TODO: we call this code when dying but may not have suspended the thread ourself. The |
| 1835 | // IsSuspended check is therefore racy with the use for dumping (normally we inhibit |
| 1836 | // the race with the thread_suspend_count_lock_). |
Ian Rogers | eef2e54 | 2014-06-24 22:48:01 -0700 | [diff] [blame] | 1837 | bool dump_for_abort = (gAborting > 0); |
| 1838 | bool safe_to_dump = (this == Thread::Current() || IsSuspended()); |
| 1839 | if (!kIsDebugBuild) { |
| 1840 | // We always want to dump the stack for an abort, however, there is no point dumping another |
| 1841 | // thread's stack in debug builds where we'll hit the not suspended check in the stack walk. |
| 1842 | safe_to_dump = (safe_to_dump || dump_for_abort); |
| 1843 | } |
Hiroshi Yamauchi | 13c1635 | 2017-01-31 10:15:08 -0800 | [diff] [blame] | 1844 | if (safe_to_dump || force_dump_stack) { |
Ian Rogers | f08e473 | 2013-04-09 09:45:49 -0700 | [diff] [blame] | 1845 | // If we're currently in native code, dump that stack before dumping the managed stack. |
Hiroshi Yamauchi | 13c1635 | 2017-01-31 10:15:08 -0800 | [diff] [blame] | 1846 | if (dump_native_stack && (dump_for_abort || force_dump_stack || ShouldShowNativeStack(this))) { |
Ian Rogers | f08e473 | 2013-04-09 09:45:49 -0700 | [diff] [blame] | 1847 | DumpKernelStack(os, GetTid(), " kernel: ", false); |
Hiroshi Yamauchi | 02f365f | 2017-02-03 15:06:00 -0800 | [diff] [blame] | 1848 | ArtMethod* method = |
| 1849 | GetCurrentMethod(nullptr, |
| 1850 | /*check_suspended*/ !force_dump_stack, |
| 1851 | /*abort_on_error*/ !(dump_for_abort || force_dump_stack)); |
Christopher Ferris | 6cff48f | 2014-01-26 21:36:13 -0800 | [diff] [blame] | 1852 | DumpNativeStack(os, GetTid(), backtrace_map, " native: ", method); |
Ian Rogers | f08e473 | 2013-04-09 09:45:49 -0700 | [diff] [blame] | 1853 | } |
Hiroshi Yamauchi | 02f365f | 2017-02-03 15:06:00 -0800 | [diff] [blame] | 1854 | DumpJavaStack(os, |
| 1855 | /*check_suspended*/ !force_dump_stack, |
| 1856 | /*dump_locks*/ !force_dump_stack); |
Ian Rogers | f08e473 | 2013-04-09 09:45:49 -0700 | [diff] [blame] | 1857 | } else { |
| 1858 | os << "Not able to dump stack of thread that isn't suspended"; |
Elliott Hughes | ffb465f | 2012-03-01 18:46:05 -0800 | [diff] [blame] | 1859 | } |
Elliott Hughes | e27955c | 2011-08-26 15:21:24 -0700 | [diff] [blame] | 1860 | } |
| 1861 | |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 1862 | void Thread::ThreadExitCallback(void* arg) { |
| 1863 | Thread* self = reinterpret_cast<Thread*>(arg); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1864 | if (self->tls32_.thread_exit_check_count == 0) { |
| 1865 | LOG(WARNING) << "Native thread exiting without having called DetachCurrentThread (maybe it's " |
| 1866 | "going to use a pthread_key_create destructor?): " << *self; |
Ian Rogers | 0878d65 | 2013-04-18 17:38:35 -0700 | [diff] [blame] | 1867 | CHECK(is_started_); |
Bilyan Borisov | bb661c0 | 2016-04-04 16:27:32 +0100 | [diff] [blame] | 1868 | #ifdef ART_TARGET_ANDROID |
Andreas Gampe | 4382f1e | 2015-08-05 01:08:53 +0000 | [diff] [blame] | 1869 | __get_tls()[TLS_SLOT_ART_THREAD_SELF] = self; |
| 1870 | #else |
Elliott Hughes | 6a607ad | 2012-07-13 20:40:00 -0700 | [diff] [blame] | 1871 | CHECK_PTHREAD_CALL(pthread_setspecific, (Thread::pthread_key_self_, self), "reattach self"); |
Andreas Gampe | 4382f1e | 2015-08-05 01:08:53 +0000 | [diff] [blame] | 1872 | #endif |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1873 | self->tls32_.thread_exit_check_count = 1; |
Elliott Hughes | 6a607ad | 2012-07-13 20:40:00 -0700 | [diff] [blame] | 1874 | } else { |
| 1875 | LOG(FATAL) << "Native thread exited without calling DetachCurrentThread: " << *self; |
| 1876 | } |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 1877 | } |
| 1878 | |
Elliott Hughes | be759c6 | 2011-09-08 19:38:21 -0700 | [diff] [blame] | 1879 | void Thread::Startup() { |
Ian Rogers | 0878d65 | 2013-04-18 17:38:35 -0700 | [diff] [blame] | 1880 | CHECK(!is_started_); |
| 1881 | is_started_ = true; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1882 | { |
Brian Carlstrom | 6d69f59 | 2013-07-16 17:18:16 -0700 | [diff] [blame] | 1883 | // MutexLock to keep annotalysis happy. |
| 1884 | // |
Mathieu Chartier | 2cebb24 | 2015-04-21 16:50:40 -0700 | [diff] [blame] | 1885 | // Note we use null for the thread because Thread::Current can |
Brian Carlstrom | 6d69f59 | 2013-07-16 17:18:16 -0700 | [diff] [blame] | 1886 | // return garbage since (is_started_ == true) and |
| 1887 | // Thread::pthread_key_self_ is not yet initialized. |
| 1888 | // This was seen on glibc. |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1889 | MutexLock mu(nullptr, *Locks::thread_suspend_count_lock_); |
Ian Rogers | c604d73 | 2012-10-14 16:09:54 -0700 | [diff] [blame] | 1890 | resume_cond_ = new ConditionVariable("Thread resumption condition variable", |
| 1891 | *Locks::thread_suspend_count_lock_); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1892 | } |
| 1893 | |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 1894 | // Allocate a TLS slot. |
Ian Rogers | f4d4da1 | 2014-11-11 16:10:33 -0800 | [diff] [blame] | 1895 | CHECK_PTHREAD_CALL(pthread_key_create, (&Thread::pthread_key_self_, Thread::ThreadExitCallback), |
| 1896 | "self key"); |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 1897 | |
| 1898 | // Double-check the TLS slot allocation. |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1899 | if (pthread_getspecific(pthread_key_self_) != nullptr) { |
| 1900 | LOG(FATAL) << "Newly-created pthread TLS slot is not nullptr"; |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 1901 | } |
Elliott Hughes | 038a806 | 2011-09-18 14:12:41 -0700 | [diff] [blame] | 1902 | } |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 1903 | |
Elliott Hughes | 038a806 | 2011-09-18 14:12:41 -0700 | [diff] [blame] | 1904 | void Thread::FinishStartup() { |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1905 | Runtime* runtime = Runtime::Current(); |
| 1906 | CHECK(runtime->IsStarted()); |
Brian Carlstrom | b82b687 | 2011-10-26 17:18:07 -0700 | [diff] [blame] | 1907 | |
Elliott Hughes | 01158d7 | 2011-09-19 19:47:10 -0700 | [diff] [blame] | 1908 | // Finish attaching the main thread. |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1909 | ScopedObjectAccess soa(Thread::Current()); |
Ian Rogers | 365c102 | 2012-06-22 15:05:28 -0700 | [diff] [blame] | 1910 | Thread::Current()->CreatePeer("main", false, runtime->GetMainThreadGroup()); |
Andreas Gampe | 4b1d4ec | 2015-10-01 16:47:26 -0700 | [diff] [blame] | 1911 | Thread::Current()->AssertNoPendingException(); |
Jesse Wilson | 9a6bae8 | 2011-11-14 14:57:30 -0500 | [diff] [blame] | 1912 | |
Elliott Hughes | af8d15a | 2012-05-29 09:12:18 -0700 | [diff] [blame] | 1913 | Runtime::Current()->GetClassLinker()->RunRootClinits(); |
Carl Shapiro | b557353 | 2011-07-12 18:22:59 -0700 | [diff] [blame] | 1914 | } |
| 1915 | |
Elliott Hughes | c1674ed | 2011-08-25 18:09:09 -0700 | [diff] [blame] | 1916 | void Thread::Shutdown() { |
Ian Rogers | 0878d65 | 2013-04-18 17:38:35 -0700 | [diff] [blame] | 1917 | CHECK(is_started_); |
| 1918 | is_started_ = false; |
Elliott Hughes | 8d768a9 | 2011-09-14 16:35:25 -0700 | [diff] [blame] | 1919 | CHECK_PTHREAD_CALL(pthread_key_delete, (Thread::pthread_key_self_), "self key"); |
Ian Rogers | 33e9566 | 2013-05-20 20:29:14 -0700 | [diff] [blame] | 1920 | MutexLock mu(Thread::Current(), *Locks::thread_suspend_count_lock_); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1921 | if (resume_cond_ != nullptr) { |
Ian Rogers | 0878d65 | 2013-04-18 17:38:35 -0700 | [diff] [blame] | 1922 | delete resume_cond_; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 1923 | resume_cond_ = nullptr; |
Ian Rogers | 0878d65 | 2013-04-18 17:38:35 -0700 | [diff] [blame] | 1924 | } |
Elliott Hughes | c1674ed | 2011-08-25 18:09:09 -0700 | [diff] [blame] | 1925 | } |
| 1926 | |
Calin Juravle | ccd5695 | 2016-12-15 17:57:38 +0000 | [diff] [blame] | 1927 | Thread::Thread(bool daemon) |
| 1928 | : tls32_(daemon), |
| 1929 | wait_monitor_(nullptr), |
| 1930 | interrupted_(false), |
Andreas Gampe | 202f85a | 2017-02-06 10:23:26 -0800 | [diff] [blame] | 1931 | custom_tls_(nullptr), |
Calin Juravle | ccd5695 | 2016-12-15 17:57:38 +0000 | [diff] [blame] | 1932 | can_call_into_java_(true) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1933 | wait_mutex_ = new Mutex("a thread wait mutex"); |
| 1934 | wait_cond_ = new ConditionVariable("a thread wait condition variable", *wait_mutex_); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1935 | tlsPtr_.instrumentation_stack = new std::deque<instrumentation::InstrumentationStackFrame>; |
| 1936 | tlsPtr_.name = new std::string(kThreadNameDuringStartup); |
| 1937 | |
Roland Levillain | 33d6903 | 2015-06-18 18:20:59 +0100 | [diff] [blame] | 1938 | static_assert((sizeof(Thread) % 4) == 0U, |
| 1939 | "art::Thread has a size which is not a multiple of 4."); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1940 | tls32_.state_and_flags.as_struct.flags = 0; |
| 1941 | tls32_.state_and_flags.as_struct.state = kNative; |
| 1942 | memset(&tlsPtr_.held_mutexes[0], 0, sizeof(tlsPtr_.held_mutexes)); |
Mathieu Chartier | 0651d41 | 2014-04-29 14:37:57 -0700 | [diff] [blame] | 1943 | std::fill(tlsPtr_.rosalloc_runs, |
Hiroshi Yamauchi | 7ed9c56 | 2016-02-02 15:22:09 -0800 | [diff] [blame] | 1944 | tlsPtr_.rosalloc_runs + kNumRosAllocThreadLocalSizeBracketsInThread, |
Mathieu Chartier | 73d1e17 | 2014-04-11 17:53:48 -0700 | [diff] [blame] | 1945 | gc::allocator::RosAlloc::GetDedicatedFullRun()); |
Mathieu Chartier | 952e1e3 | 2016-06-13 14:04:02 -0700 | [diff] [blame] | 1946 | tlsPtr_.checkpoint_function = nullptr; |
Yu Li | eac4424 | 2015-06-29 10:50:03 +0800 | [diff] [blame] | 1947 | for (uint32_t i = 0; i < kMaxSuspendBarriers; ++i) { |
| 1948 | tlsPtr_.active_suspend_barriers[i] = nullptr; |
| 1949 | } |
Hiroshi Yamauchi | 2cd334a | 2015-01-09 14:03:35 -0800 | [diff] [blame] | 1950 | tlsPtr_.flip_function = nullptr; |
Hiroshi Yamauchi | 0b71357 | 2015-06-16 18:29:23 -0700 | [diff] [blame] | 1951 | tlsPtr_.thread_local_mark_stack = nullptr; |
Hiroshi Yamauchi | ee23582 | 2016-08-19 17:03:27 -0700 | [diff] [blame] | 1952 | tls32_.is_transitioning_to_runnable = false; |
Elliott Hughes | dcc2474 | 2011-09-07 14:02:44 -0700 | [diff] [blame] | 1953 | } |
| 1954 | |
Elliott Hughes | 7dc5166 | 2012-05-16 14:48:43 -0700 | [diff] [blame] | 1955 | bool Thread::IsStillStarting() const { |
| 1956 | // 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] | 1957 | // the thread is in kNative; it might also be in kVmWait. |
Mathieu Chartier | 2cebb24 | 2015-04-21 16:50:40 -0700 | [diff] [blame] | 1958 | // You might think you can check whether the peer is null, but the peer is actually created and |
Elliott Hughes | 7dc5166 | 2012-05-16 14:48:43 -0700 | [diff] [blame] | 1959 | // assigned fairly early on, and needs to be. |
| 1960 | // It turns out that the last thing to change is the thread name; that's a good proxy for "has |
| 1961 | // this thread _ever_ entered kRunnable". |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 1962 | return (tlsPtr_.jpeer == nullptr && tlsPtr_.opeer == nullptr) || |
| 1963 | (*tlsPtr_.name == kThreadNameDuringStartup); |
Elliott Hughes | 7dc5166 | 2012-05-16 14:48:43 -0700 | [diff] [blame] | 1964 | } |
| 1965 | |
Andreas Gampe | d9efea6 | 2014-07-21 22:56:08 -0700 | [diff] [blame] | 1966 | void Thread::AssertPendingException() const { |
Mathieu Chartier | a61894d | 2015-04-23 16:32:54 -0700 | [diff] [blame] | 1967 | CHECK(IsExceptionPending()) << "Pending exception expected."; |
| 1968 | } |
| 1969 | |
| 1970 | void Thread::AssertPendingOOMException() const { |
| 1971 | AssertPendingException(); |
| 1972 | auto* e = GetException(); |
| 1973 | CHECK_EQ(e->GetClass(), DecodeJObject(WellKnownClasses::java_lang_OutOfMemoryError)->AsClass()) |
| 1974 | << e->Dump(); |
Andreas Gampe | d9efea6 | 2014-07-21 22:56:08 -0700 | [diff] [blame] | 1975 | } |
| 1976 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1977 | void Thread::AssertNoPendingException() const { |
| 1978 | if (UNLIKELY(IsExceptionPending())) { |
| 1979 | ScopedObjectAccess soa(Thread::Current()); |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 1980 | LOG(FATAL) << "No pending exception expected: " << GetException()->Dump(); |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 1981 | } |
| 1982 | } |
| 1983 | |
Mathieu Chartier | 8d7672e | 2014-02-25 10:57:16 -0800 | [diff] [blame] | 1984 | void Thread::AssertNoPendingExceptionForNewException(const char* msg) const { |
| 1985 | if (UNLIKELY(IsExceptionPending())) { |
| 1986 | ScopedObjectAccess soa(Thread::Current()); |
Ian Rogers | c114b5f | 2014-07-21 08:55:01 -0700 | [diff] [blame] | 1987 | LOG(FATAL) << "Throwing new exception '" << msg << "' with unexpected pending exception: " |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 1988 | << GetException()->Dump(); |
Mathieu Chartier | 8d7672e | 2014-02-25 10:57:16 -0800 | [diff] [blame] | 1989 | } |
| 1990 | } |
| 1991 | |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 1992 | class MonitorExitVisitor : public SingleRootVisitor { |
| 1993 | public: |
| 1994 | explicit MonitorExitVisitor(Thread* self) : self_(self) { } |
| 1995 | |
| 1996 | // NO_THREAD_SAFETY_ANALYSIS due to MonitorExit. |
| 1997 | void VisitRoot(mirror::Object* entered_monitor, const RootInfo& info ATTRIBUTE_UNUSED) |
| 1998 | OVERRIDE NO_THREAD_SAFETY_ANALYSIS { |
| 1999 | if (self_->HoldsLock(entered_monitor)) { |
| 2000 | LOG(WARNING) << "Calling MonitorExit on object " |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 2001 | << entered_monitor << " (" << entered_monitor->PrettyTypeOf() << ")" |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 2002 | << " left locked by native thread " |
| 2003 | << *Thread::Current() << " which is detaching"; |
| 2004 | entered_monitor->MonitorExit(self_); |
| 2005 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2006 | } |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 2007 | |
| 2008 | private: |
| 2009 | Thread* const self_; |
| 2010 | }; |
Elliott Hughes | 02b48d1 | 2011-09-07 17:15:51 -0700 | [diff] [blame] | 2011 | |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 2012 | void Thread::Destroy() { |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 2013 | Thread* self = this; |
| 2014 | DCHECK_EQ(self, Thread::Current()); |
Elliott Hughes | 02b48d1 | 2011-09-07 17:15:51 -0700 | [diff] [blame] | 2015 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 2016 | if (tlsPtr_.jni_env != nullptr) { |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 2017 | { |
| 2018 | ScopedObjectAccess soa(self); |
| 2019 | MonitorExitVisitor visitor(self); |
| 2020 | // On thread detach, all monitors entered with JNI MonitorEnter are automatically exited. |
| 2021 | tlsPtr_.jni_env->monitors.VisitRoots(&visitor, RootInfo(kRootVMInternal)); |
| 2022 | } |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 2023 | // Release locally held global references which releasing may require the mutator lock. |
| 2024 | if (tlsPtr_.jpeer != nullptr) { |
| 2025 | // If pthread_create fails we don't have a jni env here. |
| 2026 | tlsPtr_.jni_env->DeleteGlobalRef(tlsPtr_.jpeer); |
| 2027 | tlsPtr_.jpeer = nullptr; |
| 2028 | } |
| 2029 | if (tlsPtr_.class_loader_override != nullptr) { |
| 2030 | tlsPtr_.jni_env->DeleteGlobalRef(tlsPtr_.class_loader_override); |
| 2031 | tlsPtr_.class_loader_override = nullptr; |
| 2032 | } |
| 2033 | } |
| 2034 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2035 | if (tlsPtr_.opeer != nullptr) { |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 2036 | ScopedObjectAccess soa(self); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 2037 | // 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] | 2038 | HandleUncaughtExceptions(soa); |
| 2039 | RemoveFromThreadGroup(soa); |
Elliott Hughes | 534da07 | 2012-03-27 15:17:42 -0700 | [diff] [blame] | 2040 | |
Anwar Ghuloum | 3c50a4b | 2013-06-21 13:05:23 -0700 | [diff] [blame] | 2041 | // this.nativePeer = 0; |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 2042 | if (Runtime::Current()->IsActiveTransaction()) { |
Andreas Gampe | 08883de | 2016-11-08 13:20:52 -0800 | [diff] [blame] | 2043 | jni::DecodeArtField(WellKnownClasses::java_lang_Thread_nativePeer) |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2044 | ->SetLong<true>(tlsPtr_.opeer, 0); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 2045 | } else { |
Andreas Gampe | 08883de | 2016-11-08 13:20:52 -0800 | [diff] [blame] | 2046 | jni::DecodeArtField(WellKnownClasses::java_lang_Thread_nativePeer) |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2047 | ->SetLong<false>(tlsPtr_.opeer, 0); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 2048 | } |
Andreas Gampe | 04bbb5b | 2017-01-19 17:49:03 +0000 | [diff] [blame] | 2049 | Runtime* runtime = Runtime::Current(); |
| 2050 | if (runtime != nullptr) { |
Andreas Gampe | ac30fa2 | 2017-01-18 21:02:36 -0800 | [diff] [blame] | 2051 | runtime->GetRuntimeCallbacks()->ThreadDeath(self); |
Andreas Gampe | 04bbb5b | 2017-01-19 17:49:03 +0000 | [diff] [blame] | 2052 | } |
| 2053 | |
Elliott Hughes | 02b48d1 | 2011-09-07 17:15:51 -0700 | [diff] [blame] | 2054 | |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 2055 | // Thread.join() is implemented as an Object.wait() on the Thread.lock object. Signal anyone |
| 2056 | // who is waiting. |
Mathieu Chartier | 3398c78 | 2016-09-30 10:27:43 -0700 | [diff] [blame] | 2057 | ObjPtr<mirror::Object> lock = |
Andreas Gampe | 08883de | 2016-11-08 13:20:52 -0800 | [diff] [blame] | 2058 | jni::DecodeArtField(WellKnownClasses::java_lang_Thread_lock)->GetObject(tlsPtr_.opeer); |
Elliott Hughes | 038a806 | 2011-09-18 14:12:41 -0700 | [diff] [blame] | 2059 | // (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] | 2060 | if (lock != nullptr) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2061 | StackHandleScope<1> hs(self); |
| 2062 | Handle<mirror::Object> h_obj(hs.NewHandle(lock)); |
Mathieu Chartier | db2633c | 2014-05-16 09:59:29 -0700 | [diff] [blame] | 2063 | ObjectLock<mirror::Object> locker(self, h_obj); |
Yevgeny Rouban | 63e8a68 | 2014-04-16 18:26:09 +0700 | [diff] [blame] | 2064 | locker.NotifyAll(); |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 2065 | } |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 2066 | tlsPtr_.opeer = nullptr; |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 2067 | } |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 2068 | |
Hiroshi Yamauchi | a1b94c6 | 2014-12-17 15:49:56 -0800 | [diff] [blame] | 2069 | { |
| 2070 | ScopedObjectAccess soa(self); |
| 2071 | Runtime::Current()->GetHeap()->RevokeThreadLocalBuffers(this); |
Hiroshi Yamauchi | 0b71357 | 2015-06-16 18:29:23 -0700 | [diff] [blame] | 2072 | if (kUseReadBarrier) { |
| 2073 | Runtime::Current()->GetHeap()->ConcurrentCopyingCollector()->RevokeThreadLocalMarkStack(this); |
| 2074 | } |
Hiroshi Yamauchi | a1b94c6 | 2014-12-17 15:49:56 -0800 | [diff] [blame] | 2075 | } |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 2076 | } |
Elliott Hughes | 02b48d1 | 2011-09-07 17:15:51 -0700 | [diff] [blame] | 2077 | |
Elliott Hughes | c0f0933 | 2012-03-26 13:27:06 -0700 | [diff] [blame] | 2078 | Thread::~Thread() { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 2079 | CHECK(tlsPtr_.class_loader_override == nullptr); |
| 2080 | CHECK(tlsPtr_.jpeer == nullptr); |
| 2081 | CHECK(tlsPtr_.opeer == nullptr); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2082 | bool initialized = (tlsPtr_.jni_env != nullptr); // Did Thread::Init run? |
Alexei Zavjalov | 1efa0a9 | 2014-02-04 02:08:31 +0700 | [diff] [blame] | 2083 | if (initialized) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2084 | delete tlsPtr_.jni_env; |
| 2085 | tlsPtr_.jni_env = nullptr; |
Alexei Zavjalov | 1efa0a9 | 2014-02-04 02:08:31 +0700 | [diff] [blame] | 2086 | } |
Mathieu Chartier | dbe6f46 | 2012-09-25 16:54:50 -0700 | [diff] [blame] | 2087 | CHECK_NE(GetState(), kRunnable); |
Hiroshi Yamauchi | 3049324 | 2016-11-03 13:06:52 -0700 | [diff] [blame] | 2088 | CHECK(!ReadFlag(kCheckpointRequest)); |
| 2089 | CHECK(!ReadFlag(kEmptyCheckpointRequest)); |
Mathieu Chartier | 952e1e3 | 2016-06-13 14:04:02 -0700 | [diff] [blame] | 2090 | CHECK(tlsPtr_.checkpoint_function == nullptr); |
| 2091 | CHECK_EQ(checkpoint_overflow_.size(), 0u); |
Hiroshi Yamauchi | 2cd334a | 2015-01-09 14:03:35 -0800 | [diff] [blame] | 2092 | CHECK(tlsPtr_.flip_function == nullptr); |
Hiroshi Yamauchi | ee23582 | 2016-08-19 17:03:27 -0700 | [diff] [blame] | 2093 | CHECK_EQ(tls32_.is_transitioning_to_runnable, false); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2094 | |
Sebastien Hertz | 0747466 | 2015-08-25 15:12:33 +0000 | [diff] [blame] | 2095 | // Make sure we processed all deoptimization requests. |
| 2096 | CHECK(tlsPtr_.deoptimization_context_stack == nullptr) << "Missed deoptimization"; |
Mingyao Yang | 99170c6 | 2015-07-06 11:10:37 -0700 | [diff] [blame] | 2097 | CHECK(tlsPtr_.frame_id_to_shadow_frame == nullptr) << |
| 2098 | "Not all deoptimized frames have been consumed by the debugger."; |
Sebastien Hertz | 0747466 | 2015-08-25 15:12:33 +0000 | [diff] [blame] | 2099 | |
Mathieu Chartier | dbe6f46 | 2012-09-25 16:54:50 -0700 | [diff] [blame] | 2100 | // We may be deleting a still born thread. |
| 2101 | SetStateUnsafe(kTerminated); |
Elliott Hughes | 85d1545 | 2011-09-16 17:33:01 -0700 | [diff] [blame] | 2102 | |
| 2103 | delete wait_cond_; |
| 2104 | delete wait_mutex_; |
| 2105 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2106 | if (tlsPtr_.long_jump_context != nullptr) { |
| 2107 | delete tlsPtr_.long_jump_context; |
Ian Rogers | c928de9 | 2013-02-27 14:30:44 -0800 | [diff] [blame] | 2108 | } |
Elliott Hughes | 475fc23 | 2011-10-25 15:00:35 -0700 | [diff] [blame] | 2109 | |
Alexei Zavjalov | 1efa0a9 | 2014-02-04 02:08:31 +0700 | [diff] [blame] | 2110 | if (initialized) { |
| 2111 | CleanupCpu(); |
| 2112 | } |
| 2113 | |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 2114 | if (tlsPtr_.single_step_control != nullptr) { |
| 2115 | delete tlsPtr_.single_step_control; |
| 2116 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2117 | delete tlsPtr_.instrumentation_stack; |
| 2118 | delete tlsPtr_.name; |
Nicolas Geoffray | 340dafa | 2016-11-18 16:03:10 +0000 | [diff] [blame] | 2119 | delete tlsPtr_.deps_or_stack_trace_sample.stack_trace_sample; |
Elliott Hughes | d8af159 | 2012-04-16 20:40:15 -0700 | [diff] [blame] | 2120 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 2121 | Runtime::Current()->GetHeap()->AssertThreadLocalBuffersAreRevoked(this); |
Hiroshi Yamauchi | cf58d4a | 2013-09-26 14:21:22 -0700 | [diff] [blame] | 2122 | |
Elliott Hughes | d8af159 | 2012-04-16 20:40:15 -0700 | [diff] [blame] | 2123 | TearDownAlternateSignalStack(); |
Elliott Hughes | c1674ed | 2011-08-25 18:09:09 -0700 | [diff] [blame] | 2124 | } |
| 2125 | |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 2126 | void Thread::HandleUncaughtExceptions(ScopedObjectAccess& soa) { |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 2127 | if (!IsExceptionPending()) { |
| 2128 | return; |
| 2129 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2130 | ScopedLocalRef<jobject> peer(tlsPtr_.jni_env, soa.AddLocalReference<jobject>(tlsPtr_.opeer)); |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 2131 | ScopedThreadStateChange tsc(this, kNative); |
Ian Rogers | 120f1c7 | 2012-09-28 17:17:10 -0700 | [diff] [blame] | 2132 | |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 2133 | // Get and clear the exception. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2134 | ScopedLocalRef<jthrowable> exception(tlsPtr_.jni_env, tlsPtr_.jni_env->ExceptionOccurred()); |
| 2135 | tlsPtr_.jni_env->ExceptionClear(); |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 2136 | |
Tobias Thierer | 5cbe65d | 2016-07-22 18:37:59 +0100 | [diff] [blame] | 2137 | // Call the Thread instance's dispatchUncaughtException(Throwable) |
| 2138 | tlsPtr_.jni_env->CallVoidMethod(peer.get(), |
| 2139 | WellKnownClasses::java_lang_Thread_dispatchUncaughtException, |
| 2140 | exception.get()); |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 2141 | |
Tobias Thierer | 5cbe65d | 2016-07-22 18:37:59 +0100 | [diff] [blame] | 2142 | // If the dispatchUncaughtException threw, clear that exception too. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2143 | tlsPtr_.jni_env->ExceptionClear(); |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 2144 | } |
| 2145 | |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 2146 | void Thread::RemoveFromThreadGroup(ScopedObjectAccess& soa) { |
Brian Carlstrom | 4514d3c | 2011-10-21 17:01:31 -0700 | [diff] [blame] | 2147 | // this.group.removeThread(this); |
| 2148 | // group can be null if we're in the compiler or a test. |
Andreas Gampe | 08883de | 2016-11-08 13:20:52 -0800 | [diff] [blame] | 2149 | ObjPtr<mirror::Object> ogroup = jni::DecodeArtField(WellKnownClasses::java_lang_Thread_group) |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2150 | ->GetObject(tlsPtr_.opeer); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2151 | if (ogroup != nullptr) { |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 2152 | ScopedLocalRef<jobject> group(soa.Env(), soa.AddLocalReference<jobject>(ogroup)); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2153 | ScopedLocalRef<jobject> peer(soa.Env(), soa.AddLocalReference<jobject>(tlsPtr_.opeer)); |
Ian Rogers | cfaa455 | 2012-11-26 21:00:08 -0800 | [diff] [blame] | 2154 | ScopedThreadStateChange tsc(soa.Self(), kNative); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2155 | tlsPtr_.jni_env->CallVoidMethod(group.get(), |
| 2156 | WellKnownClasses::java_lang_ThreadGroup_removeThread, |
| 2157 | peer.get()); |
Brian Carlstrom | 4514d3c | 2011-10-21 17:01:31 -0700 | [diff] [blame] | 2158 | } |
| 2159 | } |
| 2160 | |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2161 | bool Thread::HandleScopeContains(jobject obj) const { |
| 2162 | StackReference<mirror::Object>* hs_entry = |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 2163 | reinterpret_cast<StackReference<mirror::Object>*>(obj); |
Mathieu Chartier | e8a3c57 | 2016-10-11 16:52:17 -0700 | [diff] [blame] | 2164 | for (BaseHandleScope* cur = tlsPtr_.top_handle_scope; cur!= nullptr; cur = cur->GetLink()) { |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2165 | if (cur->Contains(hs_entry)) { |
Ian Rogers | a8cd9f4 | 2011-08-19 16:43:41 -0700 | [diff] [blame] | 2166 | return true; |
| 2167 | } |
| 2168 | } |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2169 | // JNI code invoked from portable code uses shadow frames rather than the handle scope. |
| 2170 | return tlsPtr_.managed_stack.ShadowFramesContain(hs_entry); |
TDYa127 | 28f1a14 | 2012-03-15 21:51:52 -0700 | [diff] [blame] | 2171 | } |
| 2172 | |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 2173 | void Thread::HandleScopeVisitRoots(RootVisitor* visitor, uint32_t thread_id) { |
Mathieu Chartier | 4809d0a | 2015-04-07 10:39:04 -0700 | [diff] [blame] | 2174 | BufferedRootVisitor<kDefaultBufferedRootCount> buffered_visitor( |
| 2175 | visitor, RootInfo(kRootNativeStack, thread_id)); |
Mathieu Chartier | e8a3c57 | 2016-10-11 16:52:17 -0700 | [diff] [blame] | 2176 | for (BaseHandleScope* cur = tlsPtr_.top_handle_scope; cur; cur = cur->GetLink()) { |
| 2177 | cur->VisitRoots(buffered_visitor); |
Shih-wei Liao | 8dfc9d5 | 2011-09-28 18:06:15 -0700 | [diff] [blame] | 2178 | } |
| 2179 | } |
| 2180 | |
Mathieu Chartier | c4f3925 | 2016-10-05 18:32:08 -0700 | [diff] [blame] | 2181 | ObjPtr<mirror::Object> Thread::DecodeJObject(jobject obj) const { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2182 | if (obj == nullptr) { |
| 2183 | return nullptr; |
Ian Rogers | 408f79a | 2011-08-23 18:22:33 -0700 | [diff] [blame] | 2184 | } |
| 2185 | IndirectRef ref = reinterpret_cast<IndirectRef>(obj); |
Andreas Gampe | dc061d0 | 2016-10-24 13:19:37 -0700 | [diff] [blame] | 2186 | IndirectRefKind kind = IndirectReferenceTable::GetIndirectRefKind(ref); |
Mathieu Chartier | 8778c52 | 2016-10-04 19:06:30 -0700 | [diff] [blame] | 2187 | ObjPtr<mirror::Object> result; |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2188 | bool expect_null = false; |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 2189 | // The "kinds" below are sorted by the frequency we expect to encounter them. |
| 2190 | if (kind == kLocal) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2191 | IndirectReferenceTable& locals = tlsPtr_.jni_env->locals; |
Hiroshi Yamauchi | 196851b | 2014-05-29 12:16:04 -0700 | [diff] [blame] | 2192 | // Local references do not need a read barrier. |
| 2193 | result = locals.Get<kWithoutReadBarrier>(ref); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2194 | } else if (kind == kHandleScopeOrInvalid) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 2195 | // TODO: make stack indirect reference table lookup more efficient. |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2196 | // Check if this is a local reference in the handle scope. |
| 2197 | if (LIKELY(HandleScopeContains(obj))) { |
| 2198 | // Read from handle scope. |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 2199 | result = reinterpret_cast<StackReference<mirror::Object>*>(obj)->AsMirrorPtr(); |
Mathieu Chartier | 9d156d5 | 2016-10-06 17:44:26 -0700 | [diff] [blame] | 2200 | VerifyObject(result); |
Ian Rogers | 408f79a | 2011-08-23 18:22:33 -0700 | [diff] [blame] | 2201 | } else { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2202 | tlsPtr_.jni_env->vm->JniAbortF(nullptr, "use of invalid jobject %p", obj); |
| 2203 | expect_null = true; |
| 2204 | result = nullptr; |
Ian Rogers | 408f79a | 2011-08-23 18:22:33 -0700 | [diff] [blame] | 2205 | } |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 2206 | } else if (kind == kGlobal) { |
Mathieu Chartier | 30b5e27 | 2015-09-01 11:14:34 -0700 | [diff] [blame] | 2207 | result = tlsPtr_.jni_env->vm->DecodeGlobal(ref); |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 2208 | } else { |
| 2209 | DCHECK_EQ(kind, kWeakGlobal); |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 2210 | result = tlsPtr_.jni_env->vm->DecodeWeakGlobal(const_cast<Thread*>(this), ref); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2211 | if (Runtime::Current()->IsClearedJniWeakGlobal(result)) { |
Mathieu Chartier | 2cebb24 | 2015-04-21 16:50:40 -0700 | [diff] [blame] | 2212 | // This is a special case where it's okay to return null. |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2213 | expect_null = true; |
| 2214 | result = nullptr; |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 2215 | } |
Ian Rogers | 408f79a | 2011-08-23 18:22:33 -0700 | [diff] [blame] | 2216 | } |
| 2217 | |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 2218 | if (UNLIKELY(!expect_null && result == nullptr)) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 2219 | tlsPtr_.jni_env->vm->JniAbortF(nullptr, "use of deleted %s %p", |
| 2220 | ToStr<IndirectRefKind>(kind).c_str(), obj); |
Ian Rogers | 408f79a | 2011-08-23 18:22:33 -0700 | [diff] [blame] | 2221 | } |
Mathieu Chartier | c4f3925 | 2016-10-05 18:32:08 -0700 | [diff] [blame] | 2222 | return result; |
Ian Rogers | 408f79a | 2011-08-23 18:22:33 -0700 | [diff] [blame] | 2223 | } |
| 2224 | |
Hiroshi Yamauchi | 04302db | 2015-11-11 23:45:34 -0800 | [diff] [blame] | 2225 | bool Thread::IsJWeakCleared(jweak obj) const { |
| 2226 | CHECK(obj != nullptr); |
| 2227 | IndirectRef ref = reinterpret_cast<IndirectRef>(obj); |
Andreas Gampe | dc061d0 | 2016-10-24 13:19:37 -0700 | [diff] [blame] | 2228 | IndirectRefKind kind = IndirectReferenceTable::GetIndirectRefKind(ref); |
Hiroshi Yamauchi | 04302db | 2015-11-11 23:45:34 -0800 | [diff] [blame] | 2229 | CHECK_EQ(kind, kWeakGlobal); |
| 2230 | return tlsPtr_.jni_env->vm->IsWeakGlobalCleared(const_cast<Thread*>(this), ref); |
| 2231 | } |
| 2232 | |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 2233 | // Implements java.lang.Thread.interrupted. |
| 2234 | bool Thread::Interrupted() { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2235 | MutexLock mu(Thread::Current(), *wait_mutex_); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2236 | bool interrupted = IsInterruptedLocked(); |
| 2237 | SetInterruptedLocked(false); |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 2238 | return interrupted; |
| 2239 | } |
| 2240 | |
| 2241 | // Implements java.lang.Thread.isInterrupted. |
| 2242 | bool Thread::IsInterrupted() { |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 2243 | MutexLock mu(Thread::Current(), *wait_mutex_); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2244 | return IsInterruptedLocked(); |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 2245 | } |
| 2246 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2247 | void Thread::Interrupt(Thread* self) { |
Ian Rogers | c604d73 | 2012-10-14 16:09:54 -0700 | [diff] [blame] | 2248 | MutexLock mu(self, *wait_mutex_); |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 2249 | if (interrupted_) { |
| 2250 | return; |
| 2251 | } |
| 2252 | interrupted_ = true; |
Ian Rogers | c604d73 | 2012-10-14 16:09:54 -0700 | [diff] [blame] | 2253 | NotifyLocked(self); |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 2254 | } |
| 2255 | |
| 2256 | void Thread::Notify() { |
Ian Rogers | c604d73 | 2012-10-14 16:09:54 -0700 | [diff] [blame] | 2257 | Thread* self = Thread::Current(); |
| 2258 | MutexLock mu(self, *wait_mutex_); |
| 2259 | NotifyLocked(self); |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 2260 | } |
| 2261 | |
Ian Rogers | c604d73 | 2012-10-14 16:09:54 -0700 | [diff] [blame] | 2262 | void Thread::NotifyLocked(Thread* self) { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2263 | if (wait_monitor_ != nullptr) { |
Ian Rogers | c604d73 | 2012-10-14 16:09:54 -0700 | [diff] [blame] | 2264 | wait_cond_->Signal(self); |
Ian Rogers | 81d425b | 2012-09-27 16:03:43 -0700 | [diff] [blame] | 2265 | } |
| 2266 | } |
| 2267 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 2268 | void Thread::SetClassLoaderOverride(jobject class_loader_override) { |
| 2269 | if (tlsPtr_.class_loader_override != nullptr) { |
| 2270 | GetJniEnv()->DeleteGlobalRef(tlsPtr_.class_loader_override); |
| 2271 | } |
| 2272 | tlsPtr_.class_loader_override = GetJniEnv()->NewGlobalRef(class_loader_override); |
| 2273 | } |
| 2274 | |
Mathieu Chartier | 65b8bb2 | 2017-02-01 11:03:50 -0800 | [diff] [blame] | 2275 | using ArtMethodDexPcPair = std::pair<ArtMethod*, uint32_t>; |
| 2276 | |
| 2277 | // Counts the stack trace depth and also fetches the first max_saved_frames frames. |
| 2278 | class FetchStackTraceVisitor : public StackVisitor { |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 2279 | public: |
Mathieu Chartier | 65b8bb2 | 2017-02-01 11:03:50 -0800 | [diff] [blame] | 2280 | explicit FetchStackTraceVisitor(Thread* thread, |
| 2281 | ArtMethodDexPcPair* saved_frames = nullptr, |
| 2282 | size_t max_saved_frames = 0) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 2283 | REQUIRES_SHARED(Locks::mutator_lock_) |
Nicolas Geoffray | 8e5bd18 | 2015-05-06 11:34:34 +0100 | [diff] [blame] | 2284 | : StackVisitor(thread, nullptr, StackVisitor::StackWalkKind::kIncludeInlinedFrames), |
Mathieu Chartier | 65b8bb2 | 2017-02-01 11:03:50 -0800 | [diff] [blame] | 2285 | saved_frames_(saved_frames), |
| 2286 | max_saved_frames_(max_saved_frames) {} |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 2287 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 2288 | bool VisitFrame() REQUIRES_SHARED(Locks::mutator_lock_) { |
Elliott Hughes | 29f2742 | 2011-09-18 16:02:18 -0700 | [diff] [blame] | 2289 | // 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] | 2290 | // Note we also skip the frame if it doesn't have a method (namely the callee |
| 2291 | // save frame) |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 2292 | ArtMethod* m = GetMethod(); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2293 | if (skipping_ && !m->IsRuntimeMethod() && |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 2294 | !mirror::Throwable::GetJavaLangThrowable()->IsAssignableFrom(m->GetDeclaringClass())) { |
Elliott Hughes | 29f2742 | 2011-09-18 16:02:18 -0700 | [diff] [blame] | 2295 | skipping_ = false; |
| 2296 | } |
| 2297 | if (!skipping_) { |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2298 | if (!m->IsRuntimeMethod()) { // Ignore runtime frames (in particular callee save). |
Mathieu Chartier | 65b8bb2 | 2017-02-01 11:03:50 -0800 | [diff] [blame] | 2299 | if (depth_ < max_saved_frames_) { |
| 2300 | saved_frames_[depth_].first = m; |
| 2301 | saved_frames_[depth_].second = m->IsProxyMethod() ? DexFile::kDexNoIndex : GetDexPc(); |
| 2302 | } |
Ian Rogers | 6b0870d | 2011-12-15 19:38:12 -0800 | [diff] [blame] | 2303 | ++depth_; |
| 2304 | } |
Elliott Hughes | 29f2742 | 2011-09-18 16:02:18 -0700 | [diff] [blame] | 2305 | } else { |
| 2306 | ++skip_depth_; |
| 2307 | } |
Elliott Hughes | 530fa00 | 2012-03-12 11:44:49 -0700 | [diff] [blame] | 2308 | return true; |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 2309 | } |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 2310 | |
Mathieu Chartier | 65b8bb2 | 2017-02-01 11:03:50 -0800 | [diff] [blame] | 2311 | uint32_t GetDepth() const { |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 2312 | return depth_; |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 2313 | } |
| 2314 | |
Mathieu Chartier | 65b8bb2 | 2017-02-01 11:03:50 -0800 | [diff] [blame] | 2315 | uint32_t GetSkipDepth() const { |
Elliott Hughes | 29f2742 | 2011-09-18 16:02:18 -0700 | [diff] [blame] | 2316 | return skip_depth_; |
| 2317 | } |
| 2318 | |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 2319 | private: |
Mathieu Chartier | 65b8bb2 | 2017-02-01 11:03:50 -0800 | [diff] [blame] | 2320 | uint32_t depth_ = 0; |
| 2321 | uint32_t skip_depth_ = 0; |
| 2322 | bool skipping_ = true; |
| 2323 | ArtMethodDexPcPair* saved_frames_; |
| 2324 | const size_t max_saved_frames_; |
Sebastien Hertz | 26f7286 | 2015-09-15 09:52:07 +0200 | [diff] [blame] | 2325 | |
Mathieu Chartier | 65b8bb2 | 2017-02-01 11:03:50 -0800 | [diff] [blame] | 2326 | DISALLOW_COPY_AND_ASSIGN(FetchStackTraceVisitor); |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 2327 | }; |
| 2328 | |
Sebastien Hertz | ee1d79a | 2014-02-21 15:46:30 +0100 | [diff] [blame] | 2329 | template<bool kTransactionActive> |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2330 | class BuildInternalStackTraceVisitor : public StackVisitor { |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 2331 | public: |
Roland Levillain | 3887c46 | 2015-08-12 18:15:42 +0100 | [diff] [blame] | 2332 | BuildInternalStackTraceVisitor(Thread* self, Thread* thread, int skip_depth) |
Nicolas Geoffray | 8e5bd18 | 2015-05-06 11:34:34 +0100 | [diff] [blame] | 2333 | : StackVisitor(thread, nullptr, StackVisitor::StackWalkKind::kIncludeInlinedFrames), |
| 2334 | self_(self), |
| 2335 | skip_depth_(skip_depth), |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 2336 | pointer_size_(Runtime::Current()->GetClassLinker()->GetImagePointerSize()) {} |
Ian Rogers | 283ed0d | 2012-02-16 15:25:09 -0800 | [diff] [blame] | 2337 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 2338 | bool Init(int depth) REQUIRES_SHARED(Locks::mutator_lock_) ACQUIRE(Roles::uninterruptible_) { |
Mathieu Chartier | 910e827 | 2015-09-30 09:24:22 -0700 | [diff] [blame] | 2339 | // Allocate method trace as an object array where the first element is a pointer array that |
| 2340 | // contains the ArtMethod pointers and dex PCs. The rest of the elements are the declaring |
| 2341 | // class of the ArtMethod pointers. |
| 2342 | ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| 2343 | StackHandleScope<1> hs(self_); |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 2344 | ObjPtr<mirror::Class> array_class = class_linker->GetClassRoot(ClassLinker::kObjectArrayClass); |
Mathieu Chartier | 910e827 | 2015-09-30 09:24:22 -0700 | [diff] [blame] | 2345 | // The first element is the methods and dex pc array, the other elements are declaring classes |
| 2346 | // for the methods to ensure classes in the stack trace don't get unloaded. |
| 2347 | Handle<mirror::ObjectArray<mirror::Object>> trace( |
| 2348 | hs.NewHandle( |
| 2349 | mirror::ObjectArray<mirror::Object>::Alloc(hs.Self(), array_class, depth + 1))); |
Andreas Gampe | fa4333d | 2017-02-14 11:10:34 -0800 | [diff] [blame] | 2350 | if (trace == nullptr) { |
Mathieu Chartier | 910e827 | 2015-09-30 09:24:22 -0700 | [diff] [blame] | 2351 | // Acquire uninterruptible_ in all paths. |
| 2352 | self_->StartAssertNoThreadSuspension("Building internal stack trace"); |
Mathieu Chartier | 566fc92 | 2015-09-29 10:21:55 -0700 | [diff] [blame] | 2353 | self_->AssertPendingOOMException(); |
| 2354 | return false; |
| 2355 | } |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 2356 | ObjPtr<mirror::PointerArray> methods_and_pcs = |
| 2357 | class_linker->AllocPointerArray(self_, depth * 2); |
Mathieu Chartier | 910e827 | 2015-09-30 09:24:22 -0700 | [diff] [blame] | 2358 | const char* last_no_suspend_cause = |
| 2359 | self_->StartAssertNoThreadSuspension("Building internal stack trace"); |
| 2360 | if (methods_and_pcs == nullptr) { |
| 2361 | self_->AssertPendingOOMException(); |
| 2362 | return false; |
| 2363 | } |
| 2364 | trace->Set(0, methods_and_pcs); |
| 2365 | trace_ = trace.Get(); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 2366 | // If We are called from native, use non-transactional mode. |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2367 | CHECK(last_no_suspend_cause == nullptr) << last_no_suspend_cause; |
Ian Rogers | 283ed0d | 2012-02-16 15:25:09 -0800 | [diff] [blame] | 2368 | return true; |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 2369 | } |
| 2370 | |
Mathieu Chartier | 4e2cb09 | 2015-07-22 16:17:51 -0700 | [diff] [blame] | 2371 | virtual ~BuildInternalStackTraceVisitor() RELEASE(Roles::uninterruptible_) { |
| 2372 | self_->EndAssertNoThreadSuspension(nullptr); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2373 | } |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 2374 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 2375 | bool VisitFrame() REQUIRES_SHARED(Locks::mutator_lock_) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 2376 | if (trace_ == nullptr) { |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 2377 | return true; // We're probably trying to fillInStackTrace for an OutOfMemoryError. |
Elliott Hughes | 726079d | 2011-10-07 18:43:44 -0700 | [diff] [blame] | 2378 | } |
Elliott Hughes | 29f2742 | 2011-09-18 16:02:18 -0700 | [diff] [blame] | 2379 | if (skip_depth_ > 0) { |
| 2380 | skip_depth_--; |
Elliott Hughes | 530fa00 | 2012-03-12 11:44:49 -0700 | [diff] [blame] | 2381 | return true; |
Elliott Hughes | 29f2742 | 2011-09-18 16:02:18 -0700 | [diff] [blame] | 2382 | } |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 2383 | ArtMethod* m = GetMethod(); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2384 | if (m->IsRuntimeMethod()) { |
| 2385 | return true; // Ignore runtime frames (in particular callee save). |
Ian Rogers | 6b0870d | 2011-12-15 19:38:12 -0800 | [diff] [blame] | 2386 | } |
Mathieu Chartier | 65b8bb2 | 2017-02-01 11:03:50 -0800 | [diff] [blame] | 2387 | AddFrame(m, m->IsProxyMethod() ? DexFile::kDexNoIndex : GetDexPc()); |
| 2388 | return true; |
| 2389 | } |
| 2390 | |
| 2391 | void AddFrame(ArtMethod* method, uint32_t dex_pc) REQUIRES_SHARED(Locks::mutator_lock_) { |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 2392 | ObjPtr<mirror::PointerArray> trace_methods_and_pcs = GetTraceMethodsAndPCs(); |
Mathieu Chartier | 65b8bb2 | 2017-02-01 11:03:50 -0800 | [diff] [blame] | 2393 | trace_methods_and_pcs->SetElementPtrSize<kTransactionActive>(count_, method, pointer_size_); |
Mathieu Chartier | 910e827 | 2015-09-30 09:24:22 -0700 | [diff] [blame] | 2394 | trace_methods_and_pcs->SetElementPtrSize<kTransactionActive>( |
| 2395 | trace_methods_and_pcs->GetLength() / 2 + count_, |
Mathieu Chartier | 65b8bb2 | 2017-02-01 11:03:50 -0800 | [diff] [blame] | 2396 | dex_pc, |
Mathieu Chartier | 910e827 | 2015-09-30 09:24:22 -0700 | [diff] [blame] | 2397 | pointer_size_); |
| 2398 | // Save the declaring class of the method to ensure that the declaring classes of the methods |
| 2399 | // do not get unloaded while the stack trace is live. |
Mathieu Chartier | 65b8bb2 | 2017-02-01 11:03:50 -0800 | [diff] [blame] | 2400 | trace_->Set(count_ + 1, method->GetDeclaringClass()); |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 2401 | ++count_; |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 2402 | } |
| 2403 | |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 2404 | ObjPtr<mirror::PointerArray> GetTraceMethodsAndPCs() const REQUIRES_SHARED(Locks::mutator_lock_) { |
| 2405 | return ObjPtr<mirror::PointerArray>::DownCast(MakeObjPtr(trace_->Get(0))); |
Mathieu Chartier | 910e827 | 2015-09-30 09:24:22 -0700 | [diff] [blame] | 2406 | } |
| 2407 | |
| 2408 | mirror::ObjectArray<mirror::Object>* GetInternalStackTrace() const { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 2409 | return trace_; |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 2410 | } |
| 2411 | |
| 2412 | private: |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2413 | Thread* const self_; |
Elliott Hughes | 29f2742 | 2011-09-18 16:02:18 -0700 | [diff] [blame] | 2414 | // How many more frames to skip. |
| 2415 | int32_t skip_depth_; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2416 | // Current position down stack trace. |
Mathieu Chartier | 65b8bb2 | 2017-02-01 11:03:50 -0800 | [diff] [blame] | 2417 | uint32_t count_ = 0; |
Mathieu Chartier | 910e827 | 2015-09-30 09:24:22 -0700 | [diff] [blame] | 2418 | // An object array where the first element is a pointer array that contains the ArtMethod |
| 2419 | // pointers on the stack and dex PCs. The rest of the elements are the declaring |
| 2420 | // class of the ArtMethod pointers. trace_[i+1] contains the declaring class of the ArtMethod of |
| 2421 | // the i'th frame. |
Mathieu Chartier | 65b8bb2 | 2017-02-01 11:03:50 -0800 | [diff] [blame] | 2422 | mirror::ObjectArray<mirror::Object>* trace_ = nullptr; |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 2423 | // For cross compilation. |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 2424 | const PointerSize pointer_size_; |
Sebastien Hertz | 26f7286 | 2015-09-15 09:52:07 +0200 | [diff] [blame] | 2425 | |
| 2426 | DISALLOW_COPY_AND_ASSIGN(BuildInternalStackTraceVisitor); |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 2427 | }; |
| 2428 | |
Sebastien Hertz | ee1d79a | 2014-02-21 15:46:30 +0100 | [diff] [blame] | 2429 | template<bool kTransactionActive> |
Mathieu Chartier | 2b7c4d1 | 2014-05-19 10:52:16 -0700 | [diff] [blame] | 2430 | jobject Thread::CreateInternalStackTrace(const ScopedObjectAccessAlreadyRunnable& soa) const { |
Mathieu Chartier | 65b8bb2 | 2017-02-01 11:03:50 -0800 | [diff] [blame] | 2431 | // Compute depth of stack, save frames if possible to avoid needing to recompute many. |
| 2432 | constexpr size_t kMaxSavedFrames = 256; |
| 2433 | std::unique_ptr<ArtMethodDexPcPair[]> saved_frames(new ArtMethodDexPcPair[kMaxSavedFrames]); |
| 2434 | FetchStackTraceVisitor count_visitor(const_cast<Thread*>(this), |
| 2435 | &saved_frames[0], |
| 2436 | kMaxSavedFrames); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 2437 | count_visitor.WalkStack(); |
Mathieu Chartier | 65b8bb2 | 2017-02-01 11:03:50 -0800 | [diff] [blame] | 2438 | const uint32_t depth = count_visitor.GetDepth(); |
| 2439 | const uint32_t skip_depth = count_visitor.GetSkipDepth(); |
Shih-wei Liao | 4417536 | 2011-08-28 16:59:17 -0700 | [diff] [blame] | 2440 | |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2441 | // Build internal stack trace. |
Sebastien Hertz | ee1d79a | 2014-02-21 15:46:30 +0100 | [diff] [blame] | 2442 | BuildInternalStackTraceVisitor<kTransactionActive> build_trace_visitor(soa.Self(), |
| 2443 | const_cast<Thread*>(this), |
| 2444 | skip_depth); |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 2445 | if (!build_trace_visitor.Init(depth)) { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2446 | return nullptr; // Allocation failed. |
Ian Rogers | 283ed0d | 2012-02-16 15:25:09 -0800 | [diff] [blame] | 2447 | } |
Mathieu Chartier | 65b8bb2 | 2017-02-01 11:03:50 -0800 | [diff] [blame] | 2448 | // If we saved all of the frames we don't even need to do the actual stack walk. This is faster |
| 2449 | // than doing the stack walk twice. |
| 2450 | if (depth < kMaxSavedFrames) { |
| 2451 | for (size_t i = 0; i < depth; ++i) { |
| 2452 | build_trace_visitor.AddFrame(saved_frames[i].first, saved_frames[i].second); |
| 2453 | } |
| 2454 | } else { |
| 2455 | build_trace_visitor.WalkStack(); |
| 2456 | } |
| 2457 | |
Mathieu Chartier | 910e827 | 2015-09-30 09:24:22 -0700 | [diff] [blame] | 2458 | mirror::ObjectArray<mirror::Object>* trace = build_trace_visitor.GetInternalStackTrace(); |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 2459 | if (kIsDebugBuild) { |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 2460 | ObjPtr<mirror::PointerArray> trace_methods = build_trace_visitor.GetTraceMethodsAndPCs(); |
Mathieu Chartier | 910e827 | 2015-09-30 09:24:22 -0700 | [diff] [blame] | 2461 | // Second half of trace_methods is dex PCs. |
| 2462 | for (uint32_t i = 0; i < static_cast<uint32_t>(trace_methods->GetLength() / 2); ++i) { |
| 2463 | auto* method = trace_methods->GetElementPtrSize<ArtMethod*>( |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 2464 | i, Runtime::Current()->GetClassLinker()->GetImagePointerSize()); |
| 2465 | CHECK(method != nullptr); |
Ian Rogers | 7a22fa6 | 2013-01-23 12:16:16 -0800 | [diff] [blame] | 2466 | } |
| 2467 | } |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 2468 | return soa.AddLocalReference<jobject>(trace); |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 2469 | } |
Mathieu Chartier | 2b7c4d1 | 2014-05-19 10:52:16 -0700 | [diff] [blame] | 2470 | template jobject Thread::CreateInternalStackTrace<false>( |
| 2471 | const ScopedObjectAccessAlreadyRunnable& soa) const; |
| 2472 | template jobject Thread::CreateInternalStackTrace<true>( |
| 2473 | const ScopedObjectAccessAlreadyRunnable& soa) const; |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 2474 | |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 2475 | bool Thread::IsExceptionThrownByCurrentMethod(ObjPtr<mirror::Throwable> exception) const { |
Mathieu Chartier | 65b8bb2 | 2017-02-01 11:03:50 -0800 | [diff] [blame] | 2476 | // Only count the depth since we do not pass a stack frame array as an argument. |
| 2477 | FetchStackTraceVisitor count_visitor(const_cast<Thread*>(this)); |
Nicolas Geoffray | 7642cfc | 2015-02-26 10:56:09 +0000 | [diff] [blame] | 2478 | count_visitor.WalkStack(); |
Mathieu Chartier | 65b8bb2 | 2017-02-01 11:03:50 -0800 | [diff] [blame] | 2479 | return count_visitor.GetDepth() == static_cast<uint32_t>(exception->GetStackDepth()); |
Nicolas Geoffray | 7642cfc | 2015-02-26 10:56:09 +0000 | [diff] [blame] | 2480 | } |
| 2481 | |
Mathieu Chartier | 2b7c4d1 | 2014-05-19 10:52:16 -0700 | [diff] [blame] | 2482 | jobjectArray Thread::InternalStackTraceToStackTraceElementArray( |
Mathieu Chartier | 910e827 | 2015-09-30 09:24:22 -0700 | [diff] [blame] | 2483 | const ScopedObjectAccessAlreadyRunnable& soa, |
| 2484 | jobject internal, |
| 2485 | jobjectArray output_array, |
Mathieu Chartier | 2b7c4d1 | 2014-05-19 10:52:16 -0700 | [diff] [blame] | 2486 | int* stack_depth) { |
Mathieu Chartier | 910e827 | 2015-09-30 09:24:22 -0700 | [diff] [blame] | 2487 | // Decode the internal stack trace into the depth, method trace and PC trace. |
| 2488 | // Subtract one for the methods and PC trace. |
Mathieu Chartier | 0795f23 | 2016-09-27 18:43:30 -0700 | [diff] [blame] | 2489 | int32_t depth = soa.Decode<mirror::Array>(internal)->GetLength() - 1; |
Mathieu Chartier | 910e827 | 2015-09-30 09:24:22 -0700 | [diff] [blame] | 2490 | DCHECK_GE(depth, 0); |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 2491 | |
Mathieu Chartier | 910e827 | 2015-09-30 09:24:22 -0700 | [diff] [blame] | 2492 | ClassLinker* const class_linker = Runtime::Current()->GetClassLinker(); |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 2493 | |
Elliott Hughes | 01158d7 | 2011-09-19 19:47:10 -0700 | [diff] [blame] | 2494 | jobjectArray result; |
Mathieu Chartier | 530825b | 2013-09-25 17:56:49 -0700 | [diff] [blame] | 2495 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2496 | if (output_array != nullptr) { |
Elliott Hughes | 01158d7 | 2011-09-19 19:47:10 -0700 | [diff] [blame] | 2497 | // Reuse the array we were given. |
| 2498 | result = output_array; |
Elliott Hughes | 01158d7 | 2011-09-19 19:47:10 -0700 | [diff] [blame] | 2499 | // ...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] | 2500 | const int32_t traces_length = |
Mathieu Chartier | 0795f23 | 2016-09-27 18:43:30 -0700 | [diff] [blame] | 2501 | soa.Decode<mirror::ObjectArray<mirror::StackTraceElement>>(result)->GetLength(); |
Mathieu Chartier | 530825b | 2013-09-25 17:56:49 -0700 | [diff] [blame] | 2502 | depth = std::min(depth, traces_length); |
Elliott Hughes | 01158d7 | 2011-09-19 19:47:10 -0700 | [diff] [blame] | 2503 | } else { |
| 2504 | // Create java_trace array and place in local reference table |
Mathieu Chartier | 530825b | 2013-09-25 17:56:49 -0700 | [diff] [blame] | 2505 | mirror::ObjectArray<mirror::StackTraceElement>* java_traces = |
Mathieu Chartier | 910e827 | 2015-09-30 09:24:22 -0700 | [diff] [blame] | 2506 | class_linker->AllocStackTraceElementArray(soa.Self(), depth); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2507 | if (java_traces == nullptr) { |
| 2508 | return nullptr; |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 2509 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 2510 | result = soa.AddLocalReference<jobjectArray>(java_traces); |
Elliott Hughes | 01158d7 | 2011-09-19 19:47:10 -0700 | [diff] [blame] | 2511 | } |
| 2512 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2513 | if (stack_depth != nullptr) { |
Elliott Hughes | 01158d7 | 2011-09-19 19:47:10 -0700 | [diff] [blame] | 2514 | *stack_depth = depth; |
| 2515 | } |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 2516 | |
Shih-wei Liao | 9b576b4 | 2011-08-29 01:45:07 -0700 | [diff] [blame] | 2517 | for (int32_t i = 0; i < depth; ++i) { |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 2518 | ObjPtr<mirror::ObjectArray<mirror::Object>> decoded_traces = |
Mathieu Chartier | 0795f23 | 2016-09-27 18:43:30 -0700 | [diff] [blame] | 2519 | soa.Decode<mirror::Object>(internal)->AsObjectArray<mirror::Object>(); |
Mathieu Chartier | 910e827 | 2015-09-30 09:24:22 -0700 | [diff] [blame] | 2520 | // Methods and dex PC trace is element 0. |
| 2521 | DCHECK(decoded_traces->Get(0)->IsIntArray() || decoded_traces->Get(0)->IsLongArray()); |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 2522 | ObjPtr<mirror::PointerArray> const method_trace = |
| 2523 | ObjPtr<mirror::PointerArray>::DownCast(MakeObjPtr(decoded_traces->Get(0))); |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 2524 | // Prepare parameters for StackTraceElement(String cls, String method, String file, int line) |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 2525 | ArtMethod* method = method_trace->GetElementPtrSize<ArtMethod*>(i, kRuntimePointerSize); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 2526 | uint32_t dex_pc = method_trace->GetElementPtrSize<uint32_t>( |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 2527 | i + method_trace->GetLength() / 2, kRuntimePointerSize); |
Jeff Hao | 228d6b8 | 2013-12-03 15:00:05 -0800 | [diff] [blame] | 2528 | int32_t line_number; |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2529 | StackHandleScope<3> hs(soa.Self()); |
| 2530 | auto class_name_object(hs.NewHandle<mirror::String>(nullptr)); |
| 2531 | auto source_name_object(hs.NewHandle<mirror::String>(nullptr)); |
Jeff Hao | 228d6b8 | 2013-12-03 15:00:05 -0800 | [diff] [blame] | 2532 | if (method->IsProxyMethod()) { |
| 2533 | line_number = -1; |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2534 | class_name_object.Assign(method->GetDeclaringClass()->GetName()); |
Jeff Hao | 228d6b8 | 2013-12-03 15:00:05 -0800 | [diff] [blame] | 2535 | // source_name_object intentionally left null for proxy methods |
| 2536 | } else { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 2537 | line_number = method->GetLineNumFromDexPC(dex_pc); |
Jeff Hao | 228d6b8 | 2013-12-03 15:00:05 -0800 | [diff] [blame] | 2538 | // Allocate element, potentially triggering GC |
| 2539 | // TODO: reuse class_name_object via Class::name_? |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 2540 | const char* descriptor = method->GetDeclaringClassDescriptor(); |
Brian Carlstrom | 7c6aca2 | 2014-01-31 18:44:56 -0800 | [diff] [blame] | 2541 | CHECK(descriptor != nullptr); |
Jeff Hao | 228d6b8 | 2013-12-03 15:00:05 -0800 | [diff] [blame] | 2542 | std::string class_name(PrettyDescriptor(descriptor)); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 2543 | class_name_object.Assign( |
| 2544 | mirror::String::AllocFromModifiedUtf8(soa.Self(), class_name.c_str())); |
Andreas Gampe | fa4333d | 2017-02-14 11:10:34 -0800 | [diff] [blame] | 2545 | if (class_name_object == nullptr) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 2546 | soa.Self()->AssertPendingOOMException(); |
Brian Carlstrom | 7c6aca2 | 2014-01-31 18:44:56 -0800 | [diff] [blame] | 2547 | return nullptr; |
Jeff Hao | 228d6b8 | 2013-12-03 15:00:05 -0800 | [diff] [blame] | 2548 | } |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 2549 | const char* source_file = method->GetDeclaringClassSourceFile(); |
Nicolas Geoffray | 374cd2c | 2017-02-15 15:38:52 +0000 | [diff] [blame] | 2550 | if (line_number == -1) { |
| 2551 | // Make the line_number field of StackTraceElement hold the dex pc. |
| 2552 | // source_name_object is intentionally left null if we failed to map the dex pc to |
| 2553 | // a line number (most probably because there is no debug info). See b/30183883. |
| 2554 | line_number = dex_pc; |
| 2555 | } else { |
| 2556 | if (source_file != nullptr) { |
| 2557 | source_name_object.Assign(mirror::String::AllocFromModifiedUtf8(soa.Self(), source_file)); |
| 2558 | if (source_name_object == nullptr) { |
| 2559 | soa.Self()->AssertPendingOOMException(); |
| 2560 | return nullptr; |
| 2561 | } |
Brian Carlstrom | 7c6aca2 | 2014-01-31 18:44:56 -0800 | [diff] [blame] | 2562 | } |
Jeff Hao | 228d6b8 | 2013-12-03 15:00:05 -0800 | [diff] [blame] | 2563 | } |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 2564 | } |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 2565 | const char* method_name = method->GetInterfaceMethodIfProxy(kRuntimePointerSize)->GetName(); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2566 | CHECK(method_name != nullptr); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2567 | Handle<mirror::String> method_name_object( |
| 2568 | hs.NewHandle(mirror::String::AllocFromModifiedUtf8(soa.Self(), method_name))); |
Andreas Gampe | fa4333d | 2017-02-14 11:10:34 -0800 | [diff] [blame] | 2569 | if (method_name_object == nullptr) { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2570 | return nullptr; |
Ian Rogers | 6d4d9fc | 2011-11-30 16:24:48 -0800 | [diff] [blame] | 2571 | } |
Nicolas Geoffray | 374cd2c | 2017-02-15 15:38:52 +0000 | [diff] [blame] | 2572 | ObjPtr<mirror::StackTraceElement> obj = mirror::StackTraceElement::Alloc(soa.Self(), |
| 2573 | class_name_object, |
| 2574 | method_name_object, |
| 2575 | source_name_object, |
| 2576 | line_number); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2577 | if (obj == nullptr) { |
| 2578 | return nullptr; |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 2579 | } |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 2580 | // We are called from native: use non-transactional mode. |
Mathieu Chartier | 0795f23 | 2016-09-27 18:43:30 -0700 | [diff] [blame] | 2581 | soa.Decode<mirror::ObjectArray<mirror::StackTraceElement>>(result)->Set<false>(i, obj); |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 2582 | } |
Ian Rogers | aaa2080 | 2011-09-11 21:47:37 -0700 | [diff] [blame] | 2583 | return result; |
Shih-wei Liao | 55df06b | 2011-08-26 14:39:27 -0700 | [diff] [blame] | 2584 | } |
| 2585 | |
Nicolas Geoffray | 0aa50ce | 2015-03-10 11:03:29 +0000 | [diff] [blame] | 2586 | void Thread::ThrowNewExceptionF(const char* exception_class_descriptor, const char* fmt, ...) { |
Elliott Hughes | a5b897e | 2011-08-16 11:33:06 -0700 | [diff] [blame] | 2587 | va_list args; |
| 2588 | va_start(args, fmt); |
Nicolas Geoffray | 0aa50ce | 2015-03-10 11:03:29 +0000 | [diff] [blame] | 2589 | ThrowNewExceptionV(exception_class_descriptor, fmt, args); |
Elliott Hughes | a5b897e | 2011-08-16 11:33:06 -0700 | [diff] [blame] | 2590 | va_end(args); |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 2591 | } |
| 2592 | |
Nicolas Geoffray | 0aa50ce | 2015-03-10 11:03:29 +0000 | [diff] [blame] | 2593 | void Thread::ThrowNewExceptionV(const char* exception_class_descriptor, |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2594 | const char* fmt, va_list ap) { |
Elliott Hughes | 4a2b417 | 2011-09-20 17:08:25 -0700 | [diff] [blame] | 2595 | std::string msg; |
| 2596 | StringAppendV(&msg, fmt, ap); |
Nicolas Geoffray | 0aa50ce | 2015-03-10 11:03:29 +0000 | [diff] [blame] | 2597 | ThrowNewException(exception_class_descriptor, msg.c_str()); |
Elliott Hughes | 5cb5ad2 | 2011-10-02 12:13:39 -0700 | [diff] [blame] | 2598 | } |
Elliott Hughes | 37f7a40 | 2011-08-22 18:56:01 -0700 | [diff] [blame] | 2599 | |
Nicolas Geoffray | 0aa50ce | 2015-03-10 11:03:29 +0000 | [diff] [blame] | 2600 | void Thread::ThrowNewException(const char* exception_class_descriptor, |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2601 | const char* msg) { |
Mathieu Chartier | 8d7672e | 2014-02-25 10:57:16 -0800 | [diff] [blame] | 2602 | // Callers should either clear or call ThrowNewWrappedException. |
| 2603 | AssertNoPendingExceptionForNewException(msg); |
Nicolas Geoffray | 0aa50ce | 2015-03-10 11:03:29 +0000 | [diff] [blame] | 2604 | ThrowNewWrappedException(exception_class_descriptor, msg); |
Elliott Hughes | a4f9474 | 2012-05-29 16:28:38 -0700 | [diff] [blame] | 2605 | } |
| 2606 | |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 2607 | static ObjPtr<mirror::ClassLoader> GetCurrentClassLoader(Thread* self) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 2608 | REQUIRES_SHARED(Locks::mutator_lock_) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 2609 | ArtMethod* method = self->GetCurrentMethod(nullptr); |
Nicolas Geoffray | ee07703 | 2015-03-09 14:56:37 +0000 | [diff] [blame] | 2610 | return method != nullptr |
| 2611 | ? method->GetDeclaringClass()->GetClassLoader() |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 2612 | : nullptr; |
| 2613 | } |
| 2614 | |
Nicolas Geoffray | 0aa50ce | 2015-03-10 11:03:29 +0000 | [diff] [blame] | 2615 | void Thread::ThrowNewWrappedException(const char* exception_class_descriptor, |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2616 | const char* msg) { |
| 2617 | DCHECK_EQ(this, Thread::Current()); |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 2618 | ScopedObjectAccessUnchecked soa(this); |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 2619 | StackHandleScope<3> hs(soa.Self()); |
Nicolas Geoffray | ee07703 | 2015-03-09 14:56:37 +0000 | [diff] [blame] | 2620 | Handle<mirror::ClassLoader> class_loader(hs.NewHandle(GetCurrentClassLoader(soa.Self()))); |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 2621 | ScopedLocalRef<jobject> cause(GetJniEnv(), soa.AddLocalReference<jobject>(GetException())); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2622 | ClearException(); |
| 2623 | Runtime* runtime = Runtime::Current(); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 2624 | auto* cl = runtime->GetClassLinker(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2625 | Handle<mirror::Class> exception_class( |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 2626 | hs.NewHandle(cl->FindClass(this, exception_class_descriptor, class_loader))); |
Andreas Gampe | fa4333d | 2017-02-14 11:10:34 -0800 | [diff] [blame] | 2627 | if (UNLIKELY(exception_class == nullptr)) { |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 2628 | CHECK(IsExceptionPending()); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2629 | LOG(ERROR) << "No exception class " << PrettyDescriptor(exception_class_descriptor); |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 2630 | return; |
| 2631 | } |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2632 | |
Ian Rogers | 7b078e8 | 2014-09-10 14:44:24 -0700 | [diff] [blame] | 2633 | if (UNLIKELY(!runtime->GetClassLinker()->EnsureInitialized(soa.Self(), exception_class, true, |
| 2634 | true))) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2635 | DCHECK(IsExceptionPending()); |
| 2636 | return; |
| 2637 | } |
| 2638 | DCHECK(!runtime->IsStarted() || exception_class->IsThrowableClass()); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2639 | Handle<mirror::Throwable> exception( |
Mathieu Chartier | 28bd2e4 | 2016-10-04 13:54:57 -0700 | [diff] [blame] | 2640 | hs.NewHandle(ObjPtr<mirror::Throwable>::DownCast(exception_class->AllocObject(this)))); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2641 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2642 | // If we couldn't allocate the exception, throw the pre-allocated out of memory exception. |
Andreas Gampe | fa4333d | 2017-02-14 11:10:34 -0800 | [diff] [blame] | 2643 | if (exception == nullptr) { |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 2644 | SetException(Runtime::Current()->GetPreAllocatedOutOfMemoryError()); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 2645 | return; |
| 2646 | } |
| 2647 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2648 | // Choose an appropriate constructor and set up the arguments. |
| 2649 | const char* signature; |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 2650 | ScopedLocalRef<jstring> msg_string(GetJniEnv(), nullptr); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2651 | if (msg != nullptr) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2652 | // Ensure we remember this and the method over the String allocation. |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 2653 | msg_string.reset( |
| 2654 | soa.AddLocalReference<jstring>(mirror::String::AllocFromModifiedUtf8(this, msg))); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2655 | if (UNLIKELY(msg_string.get() == nullptr)) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2656 | CHECK(IsExceptionPending()); // OOME. |
| 2657 | return; |
Brian Carlstrom | ebd1fd2 | 2011-12-07 15:46:26 -0800 | [diff] [blame] | 2658 | } |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2659 | if (cause.get() == nullptr) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2660 | signature = "(Ljava/lang/String;)V"; |
| 2661 | } else { |
| 2662 | signature = "(Ljava/lang/String;Ljava/lang/Throwable;)V"; |
| 2663 | } |
| 2664 | } else { |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2665 | if (cause.get() == nullptr) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2666 | signature = "()V"; |
| 2667 | } else { |
| 2668 | signature = "(Ljava/lang/Throwable;)V"; |
| 2669 | } |
Brian Carlstrom | ebd1fd2 | 2011-12-07 15:46:26 -0800 | [diff] [blame] | 2670 | } |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 2671 | ArtMethod* exception_init_method = |
| 2672 | exception_class->FindDeclaredDirectMethod("<init>", signature, cl->GetImagePointerSize()); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2673 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2674 | CHECK(exception_init_method != nullptr) << "No <init>" << signature << " in " |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2675 | << PrettyDescriptor(exception_class_descriptor); |
| 2676 | |
| 2677 | if (UNLIKELY(!runtime->IsStarted())) { |
| 2678 | // Something is trying to throw an exception without a started runtime, which is the common |
| 2679 | // case in the compiler. We won't be able to invoke the constructor of the exception, so set |
| 2680 | // the exception fields directly. |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2681 | if (msg != nullptr) { |
Mathieu Chartier | c4f3925 | 2016-10-05 18:32:08 -0700 | [diff] [blame] | 2682 | exception->SetDetailMessage(DecodeJObject(msg_string.get())->AsString()); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2683 | } |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2684 | if (cause.get() != nullptr) { |
Mathieu Chartier | c4f3925 | 2016-10-05 18:32:08 -0700 | [diff] [blame] | 2685 | exception->SetCause(DecodeJObject(cause.get())->AsThrowable()); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2686 | } |
Ian Rogers | c45b8b5 | 2014-05-03 01:39:59 -0700 | [diff] [blame] | 2687 | ScopedLocalRef<jobject> trace(GetJniEnv(), |
| 2688 | Runtime::Current()->IsActiveTransaction() |
| 2689 | ? CreateInternalStackTrace<true>(soa) |
| 2690 | : CreateInternalStackTrace<false>(soa)); |
| 2691 | if (trace.get() != nullptr) { |
Mathieu Chartier | c4f3925 | 2016-10-05 18:32:08 -0700 | [diff] [blame] | 2692 | exception->SetStackState(DecodeJObject(trace.get()).Ptr()); |
Ian Rogers | c45b8b5 | 2014-05-03 01:39:59 -0700 | [diff] [blame] | 2693 | } |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 2694 | SetException(exception.Get()); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2695 | } else { |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 2696 | jvalue jv_args[2]; |
| 2697 | size_t i = 0; |
| 2698 | |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2699 | if (msg != nullptr) { |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 2700 | jv_args[i].l = msg_string.get(); |
| 2701 | ++i; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2702 | } |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2703 | if (cause.get() != nullptr) { |
Ian Rogers | 53b8b09 | 2014-03-13 23:45:53 -0700 | [diff] [blame] | 2704 | jv_args[i].l = cause.get(); |
| 2705 | ++i; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2706 | } |
Jeff Hao | 39b6c24 | 2015-05-19 20:30:23 -0700 | [diff] [blame] | 2707 | ScopedLocalRef<jobject> ref(soa.Env(), soa.AddLocalReference<jobject>(exception.Get())); |
Andreas Gampe | 13b2784 | 2016-11-07 16:48:23 -0800 | [diff] [blame] | 2708 | InvokeWithJValues(soa, ref.get(), jni::EncodeArtMethod(exception_init_method), jv_args); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2709 | if (LIKELY(!IsExceptionPending())) { |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 2710 | SetException(exception.Get()); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2711 | } |
Elliott Hughes | 3064683 | 2011-10-13 16:59:46 -0700 | [diff] [blame] | 2712 | } |
Elliott Hughes | a5b897e | 2011-08-16 11:33:06 -0700 | [diff] [blame] | 2713 | } |
| 2714 | |
Elliott Hughes | 2ced6a5 | 2011-10-16 18:44:48 -0700 | [diff] [blame] | 2715 | void Thread::ThrowOutOfMemoryError(const char* msg) { |
Andreas Gampe | e4301ff | 2015-02-17 19:25:29 -0800 | [diff] [blame] | 2716 | LOG(WARNING) << StringPrintf("Throwing OutOfMemoryError \"%s\"%s", |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2717 | msg, (tls32_.throwing_OutOfMemoryError ? " (recursive case)" : "")); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2718 | if (!tls32_.throwing_OutOfMemoryError) { |
| 2719 | tls32_.throwing_OutOfMemoryError = true; |
Nicolas Geoffray | 0aa50ce | 2015-03-10 11:03:29 +0000 | [diff] [blame] | 2720 | ThrowNewException("Ljava/lang/OutOfMemoryError;", msg); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2721 | tls32_.throwing_OutOfMemoryError = false; |
Elliott Hughes | 418dfe7 | 2011-10-06 18:56:27 -0700 | [diff] [blame] | 2722 | } else { |
Andreas Gampe | 3fec9ac | 2016-09-13 10:47:28 -0700 | [diff] [blame] | 2723 | Dump(LOG_STREAM(WARNING)); // The pre-allocated OOME has no stack, so help out and log one. |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 2724 | SetException(Runtime::Current()->GetPreAllocatedOutOfMemoryError()); |
Elliott Hughes | 418dfe7 | 2011-10-06 18:56:27 -0700 | [diff] [blame] | 2725 | } |
Elliott Hughes | 79082e3 | 2011-08-25 12:07:32 -0700 | [diff] [blame] | 2726 | } |
| 2727 | |
Elliott Hughes | 498508c | 2011-10-17 14:58:22 -0700 | [diff] [blame] | 2728 | Thread* Thread::CurrentFromGdb() { |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 2729 | return Thread::Current(); |
| 2730 | } |
| 2731 | |
| 2732 | void Thread::DumpFromGdb() const { |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2733 | std::ostringstream ss; |
| 2734 | Dump(ss); |
Elliott Hughes | 9557241 | 2011-12-13 18:14:20 -0800 | [diff] [blame] | 2735 | std::string str(ss.str()); |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2736 | // log to stderr for debugging command line processes |
| 2737 | std::cerr << str; |
Bilyan Borisov | bb661c0 | 2016-04-04 16:27:32 +0100 | [diff] [blame] | 2738 | #ifdef ART_TARGET_ANDROID |
Brian Carlstrom | 6b4ef02 | 2011-10-23 14:59:04 -0700 | [diff] [blame] | 2739 | // log to logcat for debugging frameworks processes |
| 2740 | LOG(INFO) << str; |
| 2741 | #endif |
Elliott Hughes | accd83d | 2011-10-17 14:25:58 -0700 | [diff] [blame] | 2742 | } |
| 2743 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2744 | // Explicitly instantiate 32 and 64bit thread offset dumping support. |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 2745 | template |
| 2746 | void Thread::DumpThreadOffset<PointerSize::k32>(std::ostream& os, uint32_t offset); |
| 2747 | template |
| 2748 | void Thread::DumpThreadOffset<PointerSize::k64>(std::ostream& os, uint32_t offset); |
Elliott Hughes | 98e2017 | 2012-04-24 15:38:13 -0700 | [diff] [blame] | 2749 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 2750 | template<PointerSize ptr_size> |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2751 | void Thread::DumpThreadOffset(std::ostream& os, uint32_t offset) { |
| 2752 | #define DO_THREAD_OFFSET(x, y) \ |
Chih-Hung Hsieh | fba3997 | 2016-05-11 11:26:48 -0700 | [diff] [blame] | 2753 | if (offset == (x).Uint32Value()) { \ |
| 2754 | os << (y); \ |
Brian Carlstrom | f69863b | 2013-07-17 21:53:13 -0700 | [diff] [blame] | 2755 | return; \ |
| 2756 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2757 | DO_THREAD_OFFSET(ThreadFlagsOffset<ptr_size>(), "state_and_flags") |
| 2758 | DO_THREAD_OFFSET(CardTableOffset<ptr_size>(), "card_table") |
| 2759 | DO_THREAD_OFFSET(ExceptionOffset<ptr_size>(), "exception") |
| 2760 | DO_THREAD_OFFSET(PeerOffset<ptr_size>(), "peer"); |
| 2761 | DO_THREAD_OFFSET(JniEnvOffset<ptr_size>(), "jni_env") |
| 2762 | DO_THREAD_OFFSET(SelfOffset<ptr_size>(), "self") |
| 2763 | DO_THREAD_OFFSET(StackEndOffset<ptr_size>(), "stack_end") |
| 2764 | DO_THREAD_OFFSET(ThinLockIdOffset<ptr_size>(), "thin_lock_thread_id") |
| 2765 | DO_THREAD_OFFSET(TopOfManagedStackOffset<ptr_size>(), "top_quick_frame_method") |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2766 | DO_THREAD_OFFSET(TopShadowFrameOffset<ptr_size>(), "top_shadow_frame") |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 2767 | DO_THREAD_OFFSET(TopHandleScopeOffset<ptr_size>(), "top_handle_scope") |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2768 | DO_THREAD_OFFSET(ThreadSuspendTriggerOffset<ptr_size>(), "suspend_trigger") |
Elliott Hughes | 28fa76d | 2012-04-09 17:31:46 -0700 | [diff] [blame] | 2769 | #undef DO_THREAD_OFFSET |
Elliott Hughes | 98e2017 | 2012-04-24 15:38:13 -0700 | [diff] [blame] | 2770 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2771 | #define JNI_ENTRY_POINT_INFO(x) \ |
| 2772 | if (JNI_ENTRYPOINT_OFFSET(ptr_size, x).Uint32Value() == offset) { \ |
| 2773 | os << #x; \ |
| 2774 | return; \ |
| 2775 | } |
| 2776 | JNI_ENTRY_POINT_INFO(pDlsymLookup) |
| 2777 | #undef JNI_ENTRY_POINT_INFO |
| 2778 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2779 | #define QUICK_ENTRY_POINT_INFO(x) \ |
| 2780 | if (QUICK_ENTRYPOINT_OFFSET(ptr_size, x).Uint32Value() == offset) { \ |
| 2781 | os << #x; \ |
| 2782 | return; \ |
| 2783 | } |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2784 | QUICK_ENTRY_POINT_INFO(pAllocArrayResolved) |
Nicolas Geoffray | b048cb7 | 2017-01-23 22:50:24 +0000 | [diff] [blame] | 2785 | QUICK_ENTRY_POINT_INFO(pAllocArrayResolved8) |
| 2786 | QUICK_ENTRY_POINT_INFO(pAllocArrayResolved16) |
| 2787 | QUICK_ENTRY_POINT_INFO(pAllocArrayResolved32) |
| 2788 | QUICK_ENTRY_POINT_INFO(pAllocArrayResolved64) |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2789 | QUICK_ENTRY_POINT_INFO(pAllocObjectResolved) |
| 2790 | QUICK_ENTRY_POINT_INFO(pAllocObjectInitialized) |
Nicolas Geoffray | 0d3998b | 2017-01-12 15:35:12 +0000 | [diff] [blame] | 2791 | QUICK_ENTRY_POINT_INFO(pAllocObjectWithChecks) |
Jeff Hao | 848f70a | 2014-01-15 13:49:50 -0800 | [diff] [blame] | 2792 | QUICK_ENTRY_POINT_INFO(pAllocStringFromBytes) |
| 2793 | QUICK_ENTRY_POINT_INFO(pAllocStringFromChars) |
| 2794 | QUICK_ENTRY_POINT_INFO(pAllocStringFromString) |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2795 | QUICK_ENTRY_POINT_INFO(pInstanceofNonTrivial) |
Mathieu Chartier | b99f4d6 | 2016-11-07 16:17:26 -0800 | [diff] [blame] | 2796 | QUICK_ENTRY_POINT_INFO(pCheckInstanceOf) |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2797 | QUICK_ENTRY_POINT_INFO(pInitializeStaticStorage) |
| 2798 | QUICK_ENTRY_POINT_INFO(pInitializeTypeAndVerifyAccess) |
| 2799 | QUICK_ENTRY_POINT_INFO(pInitializeType) |
| 2800 | QUICK_ENTRY_POINT_INFO(pResolveString) |
Fred Shih | 37f05ef | 2014-07-16 18:38:08 -0700 | [diff] [blame] | 2801 | QUICK_ENTRY_POINT_INFO(pSet8Instance) |
| 2802 | QUICK_ENTRY_POINT_INFO(pSet8Static) |
| 2803 | QUICK_ENTRY_POINT_INFO(pSet16Instance) |
| 2804 | QUICK_ENTRY_POINT_INFO(pSet16Static) |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2805 | QUICK_ENTRY_POINT_INFO(pSet32Instance) |
| 2806 | QUICK_ENTRY_POINT_INFO(pSet32Static) |
| 2807 | QUICK_ENTRY_POINT_INFO(pSet64Instance) |
| 2808 | QUICK_ENTRY_POINT_INFO(pSet64Static) |
| 2809 | QUICK_ENTRY_POINT_INFO(pSetObjInstance) |
| 2810 | QUICK_ENTRY_POINT_INFO(pSetObjStatic) |
Fred Shih | 37f05ef | 2014-07-16 18:38:08 -0700 | [diff] [blame] | 2811 | QUICK_ENTRY_POINT_INFO(pGetByteInstance) |
| 2812 | QUICK_ENTRY_POINT_INFO(pGetBooleanInstance) |
| 2813 | QUICK_ENTRY_POINT_INFO(pGetByteStatic) |
| 2814 | QUICK_ENTRY_POINT_INFO(pGetBooleanStatic) |
| 2815 | QUICK_ENTRY_POINT_INFO(pGetShortInstance) |
| 2816 | QUICK_ENTRY_POINT_INFO(pGetCharInstance) |
| 2817 | QUICK_ENTRY_POINT_INFO(pGetShortStatic) |
| 2818 | QUICK_ENTRY_POINT_INFO(pGetCharStatic) |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2819 | QUICK_ENTRY_POINT_INFO(pGet32Instance) |
| 2820 | QUICK_ENTRY_POINT_INFO(pGet32Static) |
| 2821 | QUICK_ENTRY_POINT_INFO(pGet64Instance) |
| 2822 | QUICK_ENTRY_POINT_INFO(pGet64Static) |
| 2823 | QUICK_ENTRY_POINT_INFO(pGetObjInstance) |
| 2824 | QUICK_ENTRY_POINT_INFO(pGetObjStatic) |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2825 | QUICK_ENTRY_POINT_INFO(pAputObject) |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2826 | QUICK_ENTRY_POINT_INFO(pJniMethodStart) |
| 2827 | QUICK_ENTRY_POINT_INFO(pJniMethodStartSynchronized) |
| 2828 | QUICK_ENTRY_POINT_INFO(pJniMethodEnd) |
| 2829 | QUICK_ENTRY_POINT_INFO(pJniMethodEndSynchronized) |
| 2830 | QUICK_ENTRY_POINT_INFO(pJniMethodEndWithReference) |
| 2831 | QUICK_ENTRY_POINT_INFO(pJniMethodEndWithReferenceSynchronized) |
| 2832 | QUICK_ENTRY_POINT_INFO(pQuickGenericJniTrampoline) |
| 2833 | QUICK_ENTRY_POINT_INFO(pLockObject) |
| 2834 | QUICK_ENTRY_POINT_INFO(pUnlockObject) |
| 2835 | QUICK_ENTRY_POINT_INFO(pCmpgDouble) |
| 2836 | QUICK_ENTRY_POINT_INFO(pCmpgFloat) |
| 2837 | QUICK_ENTRY_POINT_INFO(pCmplDouble) |
| 2838 | QUICK_ENTRY_POINT_INFO(pCmplFloat) |
Mark Mendell | a4f1220 | 2015-08-06 15:23:34 -0400 | [diff] [blame] | 2839 | QUICK_ENTRY_POINT_INFO(pCos) |
| 2840 | QUICK_ENTRY_POINT_INFO(pSin) |
| 2841 | QUICK_ENTRY_POINT_INFO(pAcos) |
| 2842 | QUICK_ENTRY_POINT_INFO(pAsin) |
| 2843 | QUICK_ENTRY_POINT_INFO(pAtan) |
| 2844 | QUICK_ENTRY_POINT_INFO(pAtan2) |
| 2845 | QUICK_ENTRY_POINT_INFO(pCbrt) |
| 2846 | QUICK_ENTRY_POINT_INFO(pCosh) |
| 2847 | QUICK_ENTRY_POINT_INFO(pExp) |
| 2848 | QUICK_ENTRY_POINT_INFO(pExpm1) |
| 2849 | QUICK_ENTRY_POINT_INFO(pHypot) |
| 2850 | QUICK_ENTRY_POINT_INFO(pLog) |
| 2851 | QUICK_ENTRY_POINT_INFO(pLog10) |
| 2852 | QUICK_ENTRY_POINT_INFO(pNextAfter) |
| 2853 | QUICK_ENTRY_POINT_INFO(pSinh) |
| 2854 | QUICK_ENTRY_POINT_INFO(pTan) |
| 2855 | QUICK_ENTRY_POINT_INFO(pTanh) |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2856 | QUICK_ENTRY_POINT_INFO(pFmod) |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2857 | QUICK_ENTRY_POINT_INFO(pL2d) |
| 2858 | QUICK_ENTRY_POINT_INFO(pFmodf) |
| 2859 | QUICK_ENTRY_POINT_INFO(pL2f) |
| 2860 | QUICK_ENTRY_POINT_INFO(pD2iz) |
| 2861 | QUICK_ENTRY_POINT_INFO(pF2iz) |
| 2862 | QUICK_ENTRY_POINT_INFO(pIdivmod) |
| 2863 | QUICK_ENTRY_POINT_INFO(pD2l) |
| 2864 | QUICK_ENTRY_POINT_INFO(pF2l) |
| 2865 | QUICK_ENTRY_POINT_INFO(pLdiv) |
| 2866 | QUICK_ENTRY_POINT_INFO(pLmod) |
| 2867 | QUICK_ENTRY_POINT_INFO(pLmul) |
| 2868 | QUICK_ENTRY_POINT_INFO(pShlLong) |
| 2869 | QUICK_ENTRY_POINT_INFO(pShrLong) |
| 2870 | QUICK_ENTRY_POINT_INFO(pUshrLong) |
| 2871 | QUICK_ENTRY_POINT_INFO(pIndexOf) |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2872 | QUICK_ENTRY_POINT_INFO(pStringCompareTo) |
| 2873 | QUICK_ENTRY_POINT_INFO(pMemcpy) |
| 2874 | QUICK_ENTRY_POINT_INFO(pQuickImtConflictTrampoline) |
| 2875 | QUICK_ENTRY_POINT_INFO(pQuickResolutionTrampoline) |
| 2876 | QUICK_ENTRY_POINT_INFO(pQuickToInterpreterBridge) |
| 2877 | QUICK_ENTRY_POINT_INFO(pInvokeDirectTrampolineWithAccessCheck) |
| 2878 | QUICK_ENTRY_POINT_INFO(pInvokeInterfaceTrampolineWithAccessCheck) |
| 2879 | QUICK_ENTRY_POINT_INFO(pInvokeStaticTrampolineWithAccessCheck) |
| 2880 | QUICK_ENTRY_POINT_INFO(pInvokeSuperTrampolineWithAccessCheck) |
| 2881 | QUICK_ENTRY_POINT_INFO(pInvokeVirtualTrampolineWithAccessCheck) |
Orion Hodson | ac14139 | 2017-01-13 11:53:47 +0000 | [diff] [blame] | 2882 | QUICK_ENTRY_POINT_INFO(pInvokePolymorphic) |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2883 | QUICK_ENTRY_POINT_INFO(pTestSuspend) |
| 2884 | QUICK_ENTRY_POINT_INFO(pDeliverException) |
| 2885 | QUICK_ENTRY_POINT_INFO(pThrowArrayBounds) |
| 2886 | QUICK_ENTRY_POINT_INFO(pThrowDivZero) |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2887 | QUICK_ENTRY_POINT_INFO(pThrowNullPointer) |
| 2888 | QUICK_ENTRY_POINT_INFO(pThrowStackOverflow) |
Mingyao Yang | d43b3ac | 2015-04-01 14:03:04 -0700 | [diff] [blame] | 2889 | QUICK_ENTRY_POINT_INFO(pDeoptimize) |
Douglas Leung | d9cb8ae | 2014-07-09 14:28:35 -0700 | [diff] [blame] | 2890 | QUICK_ENTRY_POINT_INFO(pA64Load) |
| 2891 | QUICK_ENTRY_POINT_INFO(pA64Store) |
Jeff Hao | 848f70a | 2014-01-15 13:49:50 -0800 | [diff] [blame] | 2892 | QUICK_ENTRY_POINT_INFO(pNewEmptyString) |
| 2893 | QUICK_ENTRY_POINT_INFO(pNewStringFromBytes_B) |
| 2894 | QUICK_ENTRY_POINT_INFO(pNewStringFromBytes_BI) |
| 2895 | QUICK_ENTRY_POINT_INFO(pNewStringFromBytes_BII) |
| 2896 | QUICK_ENTRY_POINT_INFO(pNewStringFromBytes_BIII) |
| 2897 | QUICK_ENTRY_POINT_INFO(pNewStringFromBytes_BIIString) |
| 2898 | QUICK_ENTRY_POINT_INFO(pNewStringFromBytes_BString) |
| 2899 | QUICK_ENTRY_POINT_INFO(pNewStringFromBytes_BIICharset) |
| 2900 | QUICK_ENTRY_POINT_INFO(pNewStringFromBytes_BCharset) |
| 2901 | QUICK_ENTRY_POINT_INFO(pNewStringFromChars_C) |
| 2902 | QUICK_ENTRY_POINT_INFO(pNewStringFromChars_CII) |
| 2903 | QUICK_ENTRY_POINT_INFO(pNewStringFromChars_IIC) |
| 2904 | QUICK_ENTRY_POINT_INFO(pNewStringFromCodePoints) |
| 2905 | QUICK_ENTRY_POINT_INFO(pNewStringFromString) |
| 2906 | QUICK_ENTRY_POINT_INFO(pNewStringFromStringBuffer) |
| 2907 | QUICK_ENTRY_POINT_INFO(pNewStringFromStringBuilder) |
Hiroshi Yamauchi | 1cc71eb | 2015-05-07 10:47:27 -0700 | [diff] [blame] | 2908 | QUICK_ENTRY_POINT_INFO(pReadBarrierJni) |
Roland Levillain | 02b7580 | 2016-07-13 11:54:35 +0100 | [diff] [blame] | 2909 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg00) |
| 2910 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg01) |
| 2911 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg02) |
| 2912 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg03) |
| 2913 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg04) |
| 2914 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg05) |
| 2915 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg06) |
| 2916 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg07) |
| 2917 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg08) |
| 2918 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg09) |
| 2919 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg10) |
| 2920 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg11) |
| 2921 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg12) |
| 2922 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg13) |
| 2923 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg14) |
| 2924 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg15) |
| 2925 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg16) |
| 2926 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg17) |
| 2927 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg18) |
| 2928 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg19) |
| 2929 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg20) |
| 2930 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg21) |
| 2931 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg22) |
| 2932 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg23) |
| 2933 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg24) |
| 2934 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg25) |
| 2935 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg26) |
| 2936 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg27) |
| 2937 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg28) |
| 2938 | QUICK_ENTRY_POINT_INFO(pReadBarrierMarkReg29) |
Man Cao | 1aee900 | 2015-07-14 22:31:42 -0700 | [diff] [blame] | 2939 | QUICK_ENTRY_POINT_INFO(pReadBarrierSlow) |
Roland Levillain | 0d5a281 | 2015-11-13 10:07:31 +0000 | [diff] [blame] | 2940 | QUICK_ENTRY_POINT_INFO(pReadBarrierForRootSlow) |
Igor Murashkin | 9d4b6da | 2016-07-29 09:51:58 -0700 | [diff] [blame] | 2941 | |
| 2942 | QUICK_ENTRY_POINT_INFO(pJniMethodFastStart) |
| 2943 | QUICK_ENTRY_POINT_INFO(pJniMethodFastEnd) |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2944 | #undef QUICK_ENTRY_POINT_INFO |
| 2945 | |
Elliott Hughes | 98e2017 | 2012-04-24 15:38:13 -0700 | [diff] [blame] | 2946 | os << offset; |
Elliott Hughes | 28fa76d | 2012-04-09 17:31:46 -0700 | [diff] [blame] | 2947 | } |
| 2948 | |
jeffhao | 94d6df4 | 2012-11-26 16:02:12 -0800 | [diff] [blame] | 2949 | void Thread::QuickDeliverException() { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 2950 | // Get exception from thread. |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 2951 | ObjPtr<mirror::Throwable> exception = GetException(); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2952 | CHECK(exception != nullptr); |
Mingyao Yang | f711f2c | 2016-05-23 12:29:39 -0700 | [diff] [blame] | 2953 | if (exception == GetDeoptimizationException()) { |
| 2954 | artDeoptimize(this); |
| 2955 | UNREACHABLE(); |
| 2956 | } |
| 2957 | |
| 2958 | // This is a real exception: let the instrumentation know about it. |
| 2959 | instrumentation::Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation(); |
| 2960 | if (instrumentation->HasExceptionCaughtListeners() && |
| 2961 | IsExceptionThrownByCurrentMethod(exception)) { |
| 2962 | // Instrumentation may cause GC so keep the exception object safe. |
| 2963 | StackHandleScope<1> hs(this); |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 2964 | HandleWrapperObjPtr<mirror::Throwable> h_exception(hs.NewHandleWrapper(&exception)); |
| 2965 | instrumentation->ExceptionCaughtEvent(this, exception.Ptr()); |
Mingyao Yang | f711f2c | 2016-05-23 12:29:39 -0700 | [diff] [blame] | 2966 | } |
| 2967 | // Does instrumentation need to deoptimize the stack? |
| 2968 | // Note: we do this *after* reporting the exception to instrumentation in case it |
| 2969 | // now requires deoptimization. It may happen if a debugger is attached and requests |
| 2970 | // new events (single-step, breakpoint, ...) when the exception is reported. |
| 2971 | if (Dbg::IsForcedInterpreterNeededForException(this)) { |
| 2972 | NthCallerVisitor visitor(this, 0, false); |
| 2973 | visitor.WalkStack(); |
Nicolas Geoffray | 433b79a | 2017-01-30 20:54:45 +0000 | [diff] [blame] | 2974 | if (Runtime::Current()->IsAsyncDeoptimizeable(visitor.caller_pc)) { |
Sebastien Hertz | 520633b | 2015-09-08 17:03:36 +0200 | [diff] [blame] | 2975 | // Save the exception into the deoptimization context so it can be restored |
| 2976 | // before entering the interpreter. |
Nicolas Geoffray | 73be1e8 | 2015-09-17 15:22:56 +0100 | [diff] [blame] | 2977 | PushDeoptimizationContext( |
| 2978 | JValue(), /*is_reference */ false, /* from_code */ false, exception); |
Mingyao Yang | f711f2c | 2016-05-23 12:29:39 -0700 | [diff] [blame] | 2979 | artDeoptimize(this); |
| 2980 | UNREACHABLE(); |
Nicolas Geoffray | 433b79a | 2017-01-30 20:54:45 +0000 | [diff] [blame] | 2981 | } else { |
| 2982 | LOG(WARNING) << "Got a deoptimization request on un-deoptimizable method " |
| 2983 | << visitor.caller->PrettyMethod(); |
Sebastien Hertz | 520633b | 2015-09-08 17:03:36 +0200 | [diff] [blame] | 2984 | } |
| 2985 | } |
Mingyao Yang | f711f2c | 2016-05-23 12:29:39 -0700 | [diff] [blame] | 2986 | |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 2987 | // 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] | 2988 | // resolution. |
Ian Rogers | 28ad40d | 2011-10-27 15:19:26 -0700 | [diff] [blame] | 2989 | ClearException(); |
Mingyao Yang | f711f2c | 2016-05-23 12:29:39 -0700 | [diff] [blame] | 2990 | QuickExceptionHandler exception_handler(this, false); |
| 2991 | exception_handler.FindCatch(exception); |
Sebastien Hertz | fd3077e | 2014-04-23 10:32:43 +0200 | [diff] [blame] | 2992 | exception_handler.UpdateInstrumentationStack(); |
| 2993 | exception_handler.DoLongJump(); |
Shih-wei Liao | 1a18c8c | 2011-08-14 17:47:36 -0700 | [diff] [blame] | 2994 | } |
| 2995 | |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 2996 | Context* Thread::GetLongJumpContext() { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 2997 | Context* result = tlsPtr_.long_jump_context; |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 2998 | if (result == nullptr) { |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 2999 | result = Context::Create(); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 3000 | } else { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 3001 | tlsPtr_.long_jump_context = nullptr; // Avoid context being shared. |
Mathieu Chartier | 6702243 | 2012-11-29 18:04:50 -0800 | [diff] [blame] | 3002 | result->Reset(); |
Shih-wei Liao | 1a18c8c | 2011-08-14 17:47:36 -0700 | [diff] [blame] | 3003 | } |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 3004 | return result; |
Shih-wei Liao | 1a18c8c | 2011-08-14 17:47:36 -0700 | [diff] [blame] | 3005 | } |
| 3006 | |
Andreas Gampe | 4a8c3fa | 2014-07-16 22:20:31 -0700 | [diff] [blame] | 3007 | // Note: this visitor may return with a method set, but dex_pc_ being DexFile:kDexNoIndex. This is |
| 3008 | // so we don't abort in a special situation (thinlocked monitor) when dumping the Java stack. |
Ian Rogers | e0dcd46 | 2014-03-08 15:21:04 -0800 | [diff] [blame] | 3009 | struct CurrentMethodVisitor FINAL : public StackVisitor { |
Hiroshi Yamauchi | 02f365f | 2017-02-03 15:06:00 -0800 | [diff] [blame] | 3010 | CurrentMethodVisitor(Thread* thread, Context* context, bool check_suspended, bool abort_on_error) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 3011 | REQUIRES_SHARED(Locks::mutator_lock_) |
Hiroshi Yamauchi | 02f365f | 2017-02-03 15:06:00 -0800 | [diff] [blame] | 3012 | : StackVisitor(thread, |
| 3013 | context, |
| 3014 | StackVisitor::StackWalkKind::kIncludeInlinedFrames, |
| 3015 | check_suspended), |
Nicolas Geoffray | 8e5bd18 | 2015-05-06 11:34:34 +0100 | [diff] [blame] | 3016 | this_object_(nullptr), |
| 3017 | method_(nullptr), |
| 3018 | dex_pc_(0), |
Andreas Gampe | 6ec8ebd | 2014-07-25 13:36:56 -0700 | [diff] [blame] | 3019 | abort_on_error_(abort_on_error) {} |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 3020 | bool VisitFrame() OVERRIDE REQUIRES_SHARED(Locks::mutator_lock_) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 3021 | ArtMethod* m = GetMethod(); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3022 | if (m->IsRuntimeMethod()) { |
| 3023 | // Continue if this is a runtime method. |
| 3024 | return true; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 3025 | } |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 3026 | if (context_ != nullptr) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3027 | this_object_ = GetThisObject(); |
| 3028 | } |
| 3029 | method_ = m; |
Andreas Gampe | 6ec8ebd | 2014-07-25 13:36:56 -0700 | [diff] [blame] | 3030 | dex_pc_ = GetDexPc(abort_on_error_); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3031 | return false; |
| 3032 | } |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 3033 | ObjPtr<mirror::Object> this_object_; |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 3034 | ArtMethod* method_; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3035 | uint32_t dex_pc_; |
Andreas Gampe | 6ec8ebd | 2014-07-25 13:36:56 -0700 | [diff] [blame] | 3036 | const bool abort_on_error_; |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3037 | }; |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 3038 | |
Hiroshi Yamauchi | 02f365f | 2017-02-03 15:06:00 -0800 | [diff] [blame] | 3039 | ArtMethod* Thread::GetCurrentMethod(uint32_t* dex_pc, |
| 3040 | bool check_suspended, |
| 3041 | bool abort_on_error) const { |
| 3042 | CurrentMethodVisitor visitor(const_cast<Thread*>(this), |
| 3043 | nullptr, |
| 3044 | check_suspended, |
| 3045 | abort_on_error); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 3046 | visitor.WalkStack(false); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 3047 | if (dex_pc != nullptr) { |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 3048 | *dex_pc = visitor.dex_pc_; |
Elliott Hughes | 9fd66f5 | 2011-10-16 12:13:26 -0700 | [diff] [blame] | 3049 | } |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 3050 | return visitor.method_; |
jeffhao | 33dc771 | 2011-11-09 17:54:24 -0800 | [diff] [blame] | 3051 | } |
| 3052 | |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 3053 | bool Thread::HoldsLock(ObjPtr<mirror::Object> object) const { |
| 3054 | return object != nullptr && object->GetLockOwnerThreadId() == GetThreadId(); |
Elliott Hughes | 5f79133 | 2011-09-15 17:45:30 -0700 | [diff] [blame] | 3055 | } |
| 3056 | |
Ian Rogers | 40e3bac | 2012-11-20 00:09:14 -0800 | [diff] [blame] | 3057 | // RootVisitor parameters are: (const Object* obj, size_t vreg, const StackVisitor* visitor). |
Andreas Gampe | 585da95 | 2016-12-02 14:52:29 -0800 | [diff] [blame] | 3058 | template <typename RootVisitor, bool kPrecise = false> |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 3059 | class ReferenceMapVisitor : public StackVisitor { |
Ian Rogers | d6b1f61 | 2011-09-27 13:38:14 -0700 | [diff] [blame] | 3060 | public: |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 3061 | ReferenceMapVisitor(Thread* thread, Context* context, RootVisitor& visitor) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 3062 | REQUIRES_SHARED(Locks::mutator_lock_) |
Nicolas Geoffray | 8e5bd18 | 2015-05-06 11:34:34 +0100 | [diff] [blame] | 3063 | // We are visiting the references in compiled frames, so we do not need |
| 3064 | // to know the inlined frames. |
| 3065 | : StackVisitor(thread, context, StackVisitor::StackWalkKind::kSkipInlinedFrames), |
| 3066 | visitor_(visitor) {} |
Ian Rogers | d6b1f61 | 2011-09-27 13:38:14 -0700 | [diff] [blame] | 3067 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 3068 | bool VisitFrame() REQUIRES_SHARED(Locks::mutator_lock_) { |
Brian Carlstrom | 6a4be3a | 2011-10-20 16:34:03 -0700 | [diff] [blame] | 3069 | if (false) { |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 3070 | LOG(INFO) << "Visiting stack roots in " << ArtMethod::PrettyMethod(GetMethod()) |
Sebastien Hertz | 714f175 | 2014-04-28 15:03:08 +0200 | [diff] [blame] | 3071 | << StringPrintf("@ PC:%04x", GetDexPc()); |
Brian Carlstrom | 6a4be3a | 2011-10-20 16:34:03 -0700 | [diff] [blame] | 3072 | } |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 3073 | ShadowFrame* shadow_frame = GetCurrentShadowFrame(); |
Dave Allison | 0aded08 | 2013-11-07 13:15:11 -0800 | [diff] [blame] | 3074 | if (shadow_frame != nullptr) { |
Sebastien Hertz | 714f175 | 2014-04-28 15:03:08 +0200 | [diff] [blame] | 3075 | VisitShadowFrame(shadow_frame); |
| 3076 | } else { |
| 3077 | VisitQuickFrame(); |
| 3078 | } |
| 3079 | return true; |
| 3080 | } |
| 3081 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 3082 | void VisitShadowFrame(ShadowFrame* shadow_frame) REQUIRES_SHARED(Locks::mutator_lock_) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 3083 | ArtMethod* m = shadow_frame->GetMethod(); |
Mathieu Chartier | 10e5ea9 | 2015-08-13 12:56:31 -0700 | [diff] [blame] | 3084 | VisitDeclaringClass(m); |
Hiroshi Yamauchi | 92d1a66 | 2014-05-15 21:43:59 -0700 | [diff] [blame] | 3085 | DCHECK(m != nullptr); |
Sebastien Hertz | 714f175 | 2014-04-28 15:03:08 +0200 | [diff] [blame] | 3086 | size_t num_regs = shadow_frame->NumberOfVRegs(); |
Nicolas Geoffray | 524e7ea | 2015-10-16 17:13:34 +0100 | [diff] [blame] | 3087 | DCHECK(m->IsNative() || shadow_frame->HasReferenceArray()); |
| 3088 | // handle scope for JNI or References for interpreter. |
| 3089 | for (size_t reg = 0; reg < num_regs; ++reg) { |
| 3090 | mirror::Object* ref = shadow_frame->GetVRegReference(reg); |
| 3091 | if (ref != nullptr) { |
| 3092 | mirror::Object* new_ref = ref; |
| 3093 | visitor_(&new_ref, reg, this); |
| 3094 | if (new_ref != ref) { |
| 3095 | shadow_frame->SetVRegReference(reg, new_ref); |
TDYa127 | ce4cc0d | 2012-11-18 16:59:53 -0800 | [diff] [blame] | 3096 | } |
| 3097 | } |
Sebastien Hertz | 714f175 | 2014-04-28 15:03:08 +0200 | [diff] [blame] | 3098 | } |
Andreas Gampe | 03ec930 | 2015-08-27 17:41:47 -0700 | [diff] [blame] | 3099 | // Mark lock count map required for structured locking checks. |
| 3100 | shadow_frame->GetLockCountData().VisitMonitors(visitor_, -1, this); |
Sebastien Hertz | 714f175 | 2014-04-28 15:03:08 +0200 | [diff] [blame] | 3101 | } |
| 3102 | |
| 3103 | private: |
Mathieu Chartier | 10e5ea9 | 2015-08-13 12:56:31 -0700 | [diff] [blame] | 3104 | // Visiting the declaring class is necessary so that we don't unload the class of a method that |
Mathieu Chartier | d5f3f32 | 2016-03-21 14:05:56 -0700 | [diff] [blame] | 3105 | // is executing. We need to ensure that the code stays mapped. NO_THREAD_SAFETY_ANALYSIS since |
| 3106 | // the threads do not all hold the heap bitmap lock for parallel GC. |
| 3107 | void VisitDeclaringClass(ArtMethod* method) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 3108 | REQUIRES_SHARED(Locks::mutator_lock_) |
Mathieu Chartier | d5f3f32 | 2016-03-21 14:05:56 -0700 | [diff] [blame] | 3109 | NO_THREAD_SAFETY_ANALYSIS { |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 3110 | ObjPtr<mirror::Class> klass = method->GetDeclaringClassUnchecked<kWithoutReadBarrier>(); |
Mathieu Chartier | 10e5ea9 | 2015-08-13 12:56:31 -0700 | [diff] [blame] | 3111 | // klass can be null for runtime methods. |
| 3112 | if (klass != nullptr) { |
Mathieu Chartier | d5f3f32 | 2016-03-21 14:05:56 -0700 | [diff] [blame] | 3113 | if (kVerifyImageObjectsMarked) { |
| 3114 | gc::Heap* const heap = Runtime::Current()->GetHeap(); |
| 3115 | gc::space::ContinuousSpace* space = heap->FindContinuousSpaceFromObject(klass, |
| 3116 | /*fail_ok*/true); |
| 3117 | if (space != nullptr && space->IsImageSpace()) { |
| 3118 | bool failed = false; |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 3119 | if (!space->GetLiveBitmap()->Test(klass.Ptr())) { |
Mathieu Chartier | d5f3f32 | 2016-03-21 14:05:56 -0700 | [diff] [blame] | 3120 | failed = true; |
Andreas Gampe | 3fec9ac | 2016-09-13 10:47:28 -0700 | [diff] [blame] | 3121 | LOG(FATAL_WITHOUT_ABORT) << "Unmarked object in image " << *space; |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 3122 | } else if (!heap->GetLiveBitmap()->Test(klass.Ptr())) { |
Mathieu Chartier | d5f3f32 | 2016-03-21 14:05:56 -0700 | [diff] [blame] | 3123 | failed = true; |
Andreas Gampe | 3fec9ac | 2016-09-13 10:47:28 -0700 | [diff] [blame] | 3124 | LOG(FATAL_WITHOUT_ABORT) << "Unmarked object in image through live bitmap " << *space; |
Mathieu Chartier | d5f3f32 | 2016-03-21 14:05:56 -0700 | [diff] [blame] | 3125 | } |
| 3126 | if (failed) { |
Andreas Gampe | 3fec9ac | 2016-09-13 10:47:28 -0700 | [diff] [blame] | 3127 | GetThread()->Dump(LOG_STREAM(FATAL_WITHOUT_ABORT)); |
| 3128 | space->AsImageSpace()->DumpSections(LOG_STREAM(FATAL_WITHOUT_ABORT)); |
| 3129 | LOG(FATAL_WITHOUT_ABORT) << "Method@" << method->GetDexMethodIndex() << ":" << method |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 3130 | << " klass@" << klass.Ptr(); |
Mathieu Chartier | d5f3f32 | 2016-03-21 14:05:56 -0700 | [diff] [blame] | 3131 | // Pretty info last in case it crashes. |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 3132 | LOG(FATAL) << "Method " << method->PrettyMethod() << " klass " |
| 3133 | << klass->PrettyClass(); |
Mathieu Chartier | d5f3f32 | 2016-03-21 14:05:56 -0700 | [diff] [blame] | 3134 | } |
| 3135 | } |
| 3136 | } |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 3137 | mirror::Object* new_ref = klass.Ptr(); |
Mathieu Chartier | 10e5ea9 | 2015-08-13 12:56:31 -0700 | [diff] [blame] | 3138 | visitor_(&new_ref, -1, this); |
| 3139 | if (new_ref != klass) { |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 3140 | method->CASDeclaringClass(klass.Ptr(), new_ref->AsClass()); |
Mathieu Chartier | 10e5ea9 | 2015-08-13 12:56:31 -0700 | [diff] [blame] | 3141 | } |
| 3142 | } |
| 3143 | } |
| 3144 | |
Andreas Gampe | 585da95 | 2016-12-02 14:52:29 -0800 | [diff] [blame] | 3145 | template <typename T> |
| 3146 | ALWAYS_INLINE |
| 3147 | inline void VisitQuickFrameWithVregCallback() REQUIRES_SHARED(Locks::mutator_lock_) { |
Mathieu Chartier | 10e5ea9 | 2015-08-13 12:56:31 -0700 | [diff] [blame] | 3148 | ArtMethod** cur_quick_frame = GetCurrentQuickFrame(); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 3149 | DCHECK(cur_quick_frame != nullptr); |
Mathieu Chartier | 10e5ea9 | 2015-08-13 12:56:31 -0700 | [diff] [blame] | 3150 | ArtMethod* m = *cur_quick_frame; |
| 3151 | VisitDeclaringClass(m); |
Andreas Gampe | cf4035a | 2014-05-28 22:43:01 -0700 | [diff] [blame] | 3152 | |
Sebastien Hertz | 714f175 | 2014-04-28 15:03:08 +0200 | [diff] [blame] | 3153 | // Process register map (which native and runtime methods don't have) |
Jeff Hao | 8494943 | 2016-05-13 14:46:28 -0700 | [diff] [blame] | 3154 | if (!m->IsNative() && !m->IsRuntimeMethod() && (!m->IsProxyMethod() || m->IsConstructor())) { |
Nicolas Geoffray | 524e7ea | 2015-10-16 17:13:34 +0100 | [diff] [blame] | 3155 | const OatQuickMethodHeader* method_header = GetCurrentOatQuickMethodHeader(); |
Vladimir Marko | 9d07e3d | 2016-03-31 12:02:28 +0100 | [diff] [blame] | 3156 | DCHECK(method_header->IsOptimized()); |
| 3157 | auto* vreg_base = reinterpret_cast<StackReference<mirror::Object>*>( |
| 3158 | reinterpret_cast<uintptr_t>(cur_quick_frame)); |
| 3159 | uintptr_t native_pc_offset = method_header->NativeQuickPcOffset(GetCurrentQuickFramePc()); |
| 3160 | CodeInfo code_info = method_header->GetOptimizedCodeInfo(); |
| 3161 | CodeInfoEncoding encoding = code_info.ExtractEncoding(); |
| 3162 | StackMap map = code_info.GetStackMapForNativePcOffset(native_pc_offset, encoding); |
| 3163 | DCHECK(map.IsValid()); |
Andreas Gampe | 585da95 | 2016-12-02 14:52:29 -0800 | [diff] [blame] | 3164 | |
| 3165 | T vreg_info(m, code_info, encoding, map, visitor_); |
| 3166 | |
Vladimir Marko | 9d07e3d | 2016-03-31 12:02:28 +0100 | [diff] [blame] | 3167 | // Visit stack entries that hold pointers. |
David Srbecky | 45aa598 | 2016-03-18 02:15:09 +0000 | [diff] [blame] | 3168 | const size_t number_of_bits = code_info.GetNumberOfStackMaskBits(encoding); |
| 3169 | BitMemoryRegion stack_mask = code_info.GetStackMaskOf(encoding, map); |
Vladimir Marko | 9d07e3d | 2016-03-31 12:02:28 +0100 | [diff] [blame] | 3170 | for (size_t i = 0; i < number_of_bits; ++i) { |
David Srbecky | 45aa598 | 2016-03-18 02:15:09 +0000 | [diff] [blame] | 3171 | if (stack_mask.LoadBit(i)) { |
Vladimir Marko | 9d07e3d | 2016-03-31 12:02:28 +0100 | [diff] [blame] | 3172 | auto* ref_addr = vreg_base + i; |
| 3173 | mirror::Object* ref = ref_addr->AsMirrorPtr(); |
| 3174 | if (ref != nullptr) { |
| 3175 | mirror::Object* new_ref = ref; |
Andreas Gampe | 585da95 | 2016-12-02 14:52:29 -0800 | [diff] [blame] | 3176 | vreg_info.VisitStack(&new_ref, i, this); |
Vladimir Marko | 9d07e3d | 2016-03-31 12:02:28 +0100 | [diff] [blame] | 3177 | if (ref != new_ref) { |
| 3178 | ref_addr->Assign(new_ref); |
David Srbecky | 45aa598 | 2016-03-18 02:15:09 +0000 | [diff] [blame] | 3179 | } |
Nicolas Geoffray | 3946844 | 2014-09-02 15:17:15 +0100 | [diff] [blame] | 3180 | } |
| 3181 | } |
Vladimir Marko | 9d07e3d | 2016-03-31 12:02:28 +0100 | [diff] [blame] | 3182 | } |
| 3183 | // Visit callee-save registers that hold pointers. |
Mathieu Chartier | 1a20b68 | 2017-01-31 14:25:16 -0800 | [diff] [blame] | 3184 | uint32_t register_mask = code_info.GetRegisterMaskOf(encoding, map); |
Vladimir Marko | 9d07e3d | 2016-03-31 12:02:28 +0100 | [diff] [blame] | 3185 | for (size_t i = 0; i < BitSizeOf<uint32_t>(); ++i) { |
| 3186 | if (register_mask & (1 << i)) { |
| 3187 | mirror::Object** ref_addr = reinterpret_cast<mirror::Object**>(GetGPRAddress(i)); |
Hiroshi Yamauchi | eb1680f | 2016-09-12 12:10:08 -0700 | [diff] [blame] | 3188 | if (kIsDebugBuild && ref_addr == nullptr) { |
| 3189 | std::string thread_name; |
| 3190 | GetThread()->GetThreadName(thread_name); |
Andreas Gampe | 3fec9ac | 2016-09-13 10:47:28 -0700 | [diff] [blame] | 3191 | LOG(FATAL_WITHOUT_ABORT) << "On thread " << thread_name; |
Hiroshi Yamauchi | eb1680f | 2016-09-12 12:10:08 -0700 | [diff] [blame] | 3192 | DescribeStack(GetThread()); |
| 3193 | LOG(FATAL) << "Found an unsaved callee-save register " << i << " (null GPRAddress) " |
| 3194 | << "set in register_mask=" << register_mask << " at " << DescribeLocation(); |
| 3195 | } |
Vladimir Marko | 9d07e3d | 2016-03-31 12:02:28 +0100 | [diff] [blame] | 3196 | if (*ref_addr != nullptr) { |
Andreas Gampe | 585da95 | 2016-12-02 14:52:29 -0800 | [diff] [blame] | 3197 | vreg_info.VisitRegister(ref_addr, i, this); |
Shih-wei Liao | 4f894e3 | 2011-09-27 21:33:19 -0700 | [diff] [blame] | 3198 | } |
Ian Rogers | d6b1f61 | 2011-09-27 13:38:14 -0700 | [diff] [blame] | 3199 | } |
| 3200 | } |
| 3201 | } |
Ian Rogers | d6b1f61 | 2011-09-27 13:38:14 -0700 | [diff] [blame] | 3202 | } |
| 3203 | |
Andreas Gampe | 585da95 | 2016-12-02 14:52:29 -0800 | [diff] [blame] | 3204 | void VisitQuickFrame() REQUIRES_SHARED(Locks::mutator_lock_) { |
| 3205 | if (kPrecise) { |
| 3206 | VisitQuickFramePrecise(); |
| 3207 | } else { |
| 3208 | VisitQuickFrameNonPrecise(); |
| 3209 | } |
| 3210 | } |
| 3211 | |
| 3212 | void VisitQuickFrameNonPrecise() REQUIRES_SHARED(Locks::mutator_lock_) { |
| 3213 | struct UndefinedVRegInfo { |
| 3214 | UndefinedVRegInfo(ArtMethod* method ATTRIBUTE_UNUSED, |
| 3215 | const CodeInfo& code_info ATTRIBUTE_UNUSED, |
| 3216 | const CodeInfoEncoding& encoding ATTRIBUTE_UNUSED, |
| 3217 | const StackMap& map ATTRIBUTE_UNUSED, |
| 3218 | RootVisitor& _visitor) |
| 3219 | : visitor(_visitor) { |
| 3220 | } |
| 3221 | |
| 3222 | ALWAYS_INLINE |
| 3223 | void VisitStack(mirror::Object** ref, |
| 3224 | size_t stack_index ATTRIBUTE_UNUSED, |
| 3225 | const StackVisitor* stack_visitor) |
| 3226 | REQUIRES_SHARED(Locks::mutator_lock_) { |
| 3227 | visitor(ref, -1, stack_visitor); |
| 3228 | } |
| 3229 | |
| 3230 | ALWAYS_INLINE |
| 3231 | void VisitRegister(mirror::Object** ref, |
| 3232 | size_t register_index ATTRIBUTE_UNUSED, |
| 3233 | const StackVisitor* stack_visitor) |
| 3234 | REQUIRES_SHARED(Locks::mutator_lock_) { |
| 3235 | visitor(ref, -1, stack_visitor); |
| 3236 | } |
| 3237 | |
| 3238 | RootVisitor& visitor; |
| 3239 | }; |
| 3240 | VisitQuickFrameWithVregCallback<UndefinedVRegInfo>(); |
| 3241 | } |
| 3242 | |
| 3243 | void VisitQuickFramePrecise() REQUIRES_SHARED(Locks::mutator_lock_) { |
| 3244 | struct StackMapVRegInfo { |
| 3245 | StackMapVRegInfo(ArtMethod* method, |
| 3246 | const CodeInfo& _code_info, |
| 3247 | const CodeInfoEncoding& _encoding, |
| 3248 | const StackMap& map, |
| 3249 | RootVisitor& _visitor) |
| 3250 | : number_of_dex_registers(method->GetCodeItem()->registers_size_), |
| 3251 | code_info(_code_info), |
| 3252 | encoding(_encoding), |
| 3253 | dex_register_map(code_info.GetDexRegisterMapOf(map, |
| 3254 | encoding, |
| 3255 | number_of_dex_registers)), |
| 3256 | visitor(_visitor) { |
| 3257 | } |
| 3258 | |
| 3259 | // TODO: If necessary, we should consider caching a reverse map instead of the linear |
| 3260 | // lookups for each location. |
| 3261 | void FindWithType(const size_t index, |
| 3262 | const DexRegisterLocation::Kind kind, |
| 3263 | mirror::Object** ref, |
| 3264 | const StackVisitor* stack_visitor) |
| 3265 | REQUIRES_SHARED(Locks::mutator_lock_) { |
| 3266 | bool found = false; |
| 3267 | for (size_t dex_reg = 0; dex_reg != number_of_dex_registers; ++dex_reg) { |
| 3268 | DexRegisterLocation location = dex_register_map.GetDexRegisterLocation( |
| 3269 | dex_reg, number_of_dex_registers, code_info, encoding); |
| 3270 | if (location.GetKind() == kind && static_cast<size_t>(location.GetValue()) == index) { |
| 3271 | visitor(ref, dex_reg, stack_visitor); |
| 3272 | found = true; |
| 3273 | } |
| 3274 | } |
| 3275 | |
| 3276 | if (!found) { |
| 3277 | // If nothing found, report with -1. |
| 3278 | visitor(ref, -1, stack_visitor); |
| 3279 | } |
| 3280 | } |
| 3281 | |
| 3282 | void VisitStack(mirror::Object** ref, size_t stack_index, const StackVisitor* stack_visitor) |
| 3283 | REQUIRES_SHARED(Locks::mutator_lock_) { |
| 3284 | const size_t stack_offset = stack_index * kFrameSlotSize; |
| 3285 | FindWithType(stack_offset, |
| 3286 | DexRegisterLocation::Kind::kInStack, |
| 3287 | ref, |
| 3288 | stack_visitor); |
| 3289 | } |
| 3290 | |
| 3291 | void VisitRegister(mirror::Object** ref, |
| 3292 | size_t register_index, |
| 3293 | const StackVisitor* stack_visitor) |
| 3294 | REQUIRES_SHARED(Locks::mutator_lock_) { |
| 3295 | FindWithType(register_index, |
| 3296 | DexRegisterLocation::Kind::kInRegister, |
| 3297 | ref, |
| 3298 | stack_visitor); |
| 3299 | } |
| 3300 | |
| 3301 | size_t number_of_dex_registers; |
| 3302 | const CodeInfo& code_info; |
| 3303 | const CodeInfoEncoding& encoding; |
| 3304 | DexRegisterMap dex_register_map; |
| 3305 | RootVisitor& visitor; |
| 3306 | }; |
| 3307 | VisitQuickFrameWithVregCallback<StackMapVRegInfo>(); |
| 3308 | } |
| 3309 | |
Mathieu Chartier | 6f1c949 | 2012-10-15 12:08:41 -0700 | [diff] [blame] | 3310 | // Visitor for when we visit a root. |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 3311 | RootVisitor& visitor_; |
Ian Rogers | d6b1f61 | 2011-09-27 13:38:14 -0700 | [diff] [blame] | 3312 | }; |
| 3313 | |
Mathieu Chartier | 6f1c949 | 2012-10-15 12:08:41 -0700 | [diff] [blame] | 3314 | class RootCallbackVisitor { |
| 3315 | public: |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 3316 | RootCallbackVisitor(RootVisitor* visitor, uint32_t tid) : visitor_(visitor), tid_(tid) {} |
Mathieu Chartier | 6f1c949 | 2012-10-15 12:08:41 -0700 | [diff] [blame] | 3317 | |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 3318 | void operator()(mirror::Object** obj, size_t vreg, const StackVisitor* stack_visitor) const |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 3319 | REQUIRES_SHARED(Locks::mutator_lock_) { |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 3320 | visitor_->VisitRoot(obj, JavaFrameRootInfo(tid_, stack_visitor, vreg)); |
Mathieu Chartier | 6f1c949 | 2012-10-15 12:08:41 -0700 | [diff] [blame] | 3321 | } |
| 3322 | |
| 3323 | private: |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 3324 | RootVisitor* const visitor_; |
Mathieu Chartier | 83c8ee0 | 2014-01-28 14:50:23 -0800 | [diff] [blame] | 3325 | const uint32_t tid_; |
Mathieu Chartier | 6f1c949 | 2012-10-15 12:08:41 -0700 | [diff] [blame] | 3326 | }; |
| 3327 | |
Andreas Gampe | 585da95 | 2016-12-02 14:52:29 -0800 | [diff] [blame] | 3328 | template <bool kPrecise> |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 3329 | void Thread::VisitRoots(RootVisitor* visitor) { |
| 3330 | const uint32_t thread_id = GetThreadId(); |
| 3331 | visitor->VisitRootIfNonNull(&tlsPtr_.opeer, RootInfo(kRootThreadObject, thread_id)); |
Sebastien Hertz | fd3077e | 2014-04-23 10:32:43 +0200 | [diff] [blame] | 3332 | if (tlsPtr_.exception != nullptr && tlsPtr_.exception != GetDeoptimizationException()) { |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 3333 | visitor->VisitRoot(reinterpret_cast<mirror::Object**>(&tlsPtr_.exception), |
Sebastien Hertz | 0747466 | 2015-08-25 15:12:33 +0000 | [diff] [blame] | 3334 | RootInfo(kRootNativeStack, thread_id)); |
Elliott Hughes | d369bb7 | 2011-09-12 14:41:14 -0700 | [diff] [blame] | 3335 | } |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 3336 | visitor->VisitRootIfNonNull(&tlsPtr_.monitor_enter_object, RootInfo(kRootNativeStack, thread_id)); |
| 3337 | tlsPtr_.jni_env->locals.VisitRoots(visitor, RootInfo(kRootJNILocal, thread_id)); |
| 3338 | tlsPtr_.jni_env->monitors.VisitRoots(visitor, RootInfo(kRootJNIMonitor, thread_id)); |
| 3339 | HandleScopeVisitRoots(visitor, thread_id); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 3340 | if (tlsPtr_.debug_invoke_req != nullptr) { |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 3341 | tlsPtr_.debug_invoke_req->VisitRoots(visitor, RootInfo(kRootDebugger, thread_id)); |
Mathieu Chartier | 3b05e9b | 2014-03-25 09:29:43 -0700 | [diff] [blame] | 3342 | } |
Sebastien Hertz | 0747466 | 2015-08-25 15:12:33 +0000 | [diff] [blame] | 3343 | // Visit roots for deoptimization. |
Mingyao Yang | 1f2d3ba | 2015-05-18 12:12:50 -0700 | [diff] [blame] | 3344 | if (tlsPtr_.stacked_shadow_frame_record != nullptr) { |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 3345 | RootCallbackVisitor visitor_to_callback(visitor, thread_id); |
Andreas Gampe | 585da95 | 2016-12-02 14:52:29 -0800 | [diff] [blame] | 3346 | ReferenceMapVisitor<RootCallbackVisitor, kPrecise> mapper(this, nullptr, visitor_to_callback); |
Mingyao Yang | 1f2d3ba | 2015-05-18 12:12:50 -0700 | [diff] [blame] | 3347 | for (StackedShadowFrameRecord* record = tlsPtr_.stacked_shadow_frame_record; |
| 3348 | record != nullptr; |
| 3349 | record = record->GetLink()) { |
| 3350 | for (ShadowFrame* shadow_frame = record->GetShadowFrame(); |
| 3351 | shadow_frame != nullptr; |
| 3352 | shadow_frame = shadow_frame->GetLink()) { |
| 3353 | mapper.VisitShadowFrame(shadow_frame); |
| 3354 | } |
Sebastien Hertz | 714f175 | 2014-04-28 15:03:08 +0200 | [diff] [blame] | 3355 | } |
| 3356 | } |
Mingyao Yang | 99170c6 | 2015-07-06 11:10:37 -0700 | [diff] [blame] | 3357 | for (DeoptimizationContextRecord* record = tlsPtr_.deoptimization_context_stack; |
| 3358 | record != nullptr; |
| 3359 | record = record->GetLink()) { |
| 3360 | if (record->IsReference()) { |
| 3361 | visitor->VisitRootIfNonNull(record->GetReturnValueAsGCRoot(), |
Sebastien Hertz | 0747466 | 2015-08-25 15:12:33 +0000 | [diff] [blame] | 3362 | RootInfo(kRootThreadObject, thread_id)); |
Andreas Gampe | 2a0d4ec | 2014-06-02 22:05:22 -0700 | [diff] [blame] | 3363 | } |
Mingyao Yang | 99170c6 | 2015-07-06 11:10:37 -0700 | [diff] [blame] | 3364 | visitor->VisitRootIfNonNull(record->GetPendingExceptionAsGCRoot(), |
| 3365 | RootInfo(kRootThreadObject, thread_id)); |
| 3366 | } |
| 3367 | if (tlsPtr_.frame_id_to_shadow_frame != nullptr) { |
| 3368 | RootCallbackVisitor visitor_to_callback(visitor, thread_id); |
Andreas Gampe | 585da95 | 2016-12-02 14:52:29 -0800 | [diff] [blame] | 3369 | ReferenceMapVisitor<RootCallbackVisitor, kPrecise> mapper(this, nullptr, visitor_to_callback); |
Mingyao Yang | 99170c6 | 2015-07-06 11:10:37 -0700 | [diff] [blame] | 3370 | for (FrameIdToShadowFrame* record = tlsPtr_.frame_id_to_shadow_frame; |
| 3371 | record != nullptr; |
| 3372 | record = record->GetNext()) { |
| 3373 | mapper.VisitShadowFrame(record->GetShadowFrame()); |
| 3374 | } |
Andreas Gampe | 2a0d4ec | 2014-06-02 22:05:22 -0700 | [diff] [blame] | 3375 | } |
Mathieu Chartier | d0ad2ee | 2015-03-31 14:59:59 -0700 | [diff] [blame] | 3376 | for (auto* verifier = tlsPtr_.method_verifier; verifier != nullptr; verifier = verifier->link_) { |
| 3377 | verifier->VisitRoots(visitor, RootInfo(kRootNativeStack, thread_id)); |
Mathieu Chartier | 12d625f | 2015-03-13 11:33:37 -0700 | [diff] [blame] | 3378 | } |
Ian Rogers | d6b1f61 | 2011-09-27 13:38:14 -0700 | [diff] [blame] | 3379 | // Visit roots on this thread's stack |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 3380 | Context* context = GetLongJumpContext(); |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 3381 | RootCallbackVisitor visitor_to_callback(visitor, thread_id); |
Andreas Gampe | 585da95 | 2016-12-02 14:52:29 -0800 | [diff] [blame] | 3382 | ReferenceMapVisitor<RootCallbackVisitor, kPrecise> mapper(this, context, visitor_to_callback); |
| 3383 | mapper.template WalkStack<StackVisitor::CountTransitions::kNo>(false); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 3384 | ReleaseLongJumpContext(context); |
Mathieu Chartier | 423d2a3 | 2013-09-12 17:33:56 -0700 | [diff] [blame] | 3385 | for (instrumentation::InstrumentationStackFrame& frame : *GetInstrumentationStack()) { |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 3386 | visitor->VisitRootIfNonNull(&frame.this_object_, RootInfo(kRootVMInternal, thread_id)); |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 3387 | } |
Elliott Hughes | 410c0c8 | 2011-09-01 17:58:25 -0700 | [diff] [blame] | 3388 | } |
| 3389 | |
Andreas Gampe | 585da95 | 2016-12-02 14:52:29 -0800 | [diff] [blame] | 3390 | void Thread::VisitRoots(RootVisitor* visitor, VisitRootFlags flags) { |
| 3391 | if ((flags & VisitRootFlags::kVisitRootFlagPrecise) != 0) { |
| 3392 | VisitRoots<true>(visitor); |
| 3393 | } else { |
| 3394 | VisitRoots<false>(visitor); |
| 3395 | } |
| 3396 | } |
| 3397 | |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 3398 | class VerifyRootVisitor : public SingleRootVisitor { |
| 3399 | public: |
| 3400 | void VisitRoot(mirror::Object* root, const RootInfo& info ATTRIBUTE_UNUSED) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 3401 | OVERRIDE REQUIRES_SHARED(Locks::mutator_lock_) { |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 3402 | VerifyObject(root); |
| 3403 | } |
| 3404 | }; |
jeffhao | 2504552 | 2012-03-13 19:34:37 -0700 | [diff] [blame] | 3405 | |
Ian Rogers | 04d7aa9 | 2013-03-16 14:29:17 -0700 | [diff] [blame] | 3406 | void Thread::VerifyStackImpl() { |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 3407 | VerifyRootVisitor visitor; |
Ian Rogers | 700a402 | 2014-05-19 16:49:03 -0700 | [diff] [blame] | 3408 | std::unique_ptr<Context> context(Context::Create()); |
Mathieu Chartier | bb87e0f | 2015-04-03 11:21:55 -0700 | [diff] [blame] | 3409 | RootCallbackVisitor visitor_to_callback(&visitor, GetThreadId()); |
| 3410 | ReferenceMapVisitor<RootCallbackVisitor> mapper(this, context.get(), visitor_to_callback); |
Ian Rogers | 0399dde | 2012-06-06 17:09:28 -0700 | [diff] [blame] | 3411 | mapper.WalkStack(); |
jeffhao | 2504552 | 2012-03-13 19:34:37 -0700 | [diff] [blame] | 3412 | } |
jeffhao | 2504552 | 2012-03-13 19:34:37 -0700 | [diff] [blame] | 3413 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3414 | // Set the stack end to that to be used during a stack overflow |
| 3415 | void Thread::SetStackEndForStackOverflow() { |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 3416 | // During stack overflow we allow use of the full stack. |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 3417 | if (tlsPtr_.stack_end == tlsPtr_.stack_begin) { |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 3418 | // However, we seem to have already extended to use the full stack. |
| 3419 | LOG(ERROR) << "Need to increase kStackOverflowReservedBytes (currently " |
Andreas Gampe | 7ea6f79 | 2014-07-14 16:21:44 -0700 | [diff] [blame] | 3420 | << GetStackOverflowReservedBytes(kRuntimeISA) << ")?"; |
Andreas Gampe | 3fec9ac | 2016-09-13 10:47:28 -0700 | [diff] [blame] | 3421 | DumpStack(LOG_STREAM(ERROR)); |
Brian Carlstrom | 7571e8b | 2013-08-12 17:04:14 -0700 | [diff] [blame] | 3422 | LOG(FATAL) << "Recursive stack overflow."; |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3423 | } |
| 3424 | |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 3425 | tlsPtr_.stack_end = tlsPtr_.stack_begin; |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 3426 | |
| 3427 | // Remove the stack overflow protection if is it set up. |
| 3428 | bool implicit_stack_check = !Runtime::Current()->ExplicitStackOverflowChecks(); |
| 3429 | if (implicit_stack_check) { |
| 3430 | if (!UnprotectStack()) { |
| 3431 | LOG(ERROR) << "Unable to remove stack protection for stack overflow"; |
| 3432 | } |
| 3433 | } |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3434 | } |
| 3435 | |
Ian Rogers | 1373595 | 2014-10-08 12:43:28 -0700 | [diff] [blame] | 3436 | void Thread::SetTlab(uint8_t* start, uint8_t* end) { |
Mathieu Chartier | 692fafd | 2013-11-29 17:24:40 -0800 | [diff] [blame] | 3437 | DCHECK_LE(start, end); |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 3438 | tlsPtr_.thread_local_start = start; |
| 3439 | tlsPtr_.thread_local_pos = tlsPtr_.thread_local_start; |
| 3440 | tlsPtr_.thread_local_end = end; |
| 3441 | tlsPtr_.thread_local_objects = 0; |
Mathieu Chartier | 692fafd | 2013-11-29 17:24:40 -0800 | [diff] [blame] | 3442 | } |
| 3443 | |
Hiroshi Yamauchi | c93c530 | 2014-03-20 16:15:37 -0700 | [diff] [blame] | 3444 | bool Thread::HasTlab() const { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 3445 | bool has_tlab = tlsPtr_.thread_local_pos != nullptr; |
Hiroshi Yamauchi | c93c530 | 2014-03-20 16:15:37 -0700 | [diff] [blame] | 3446 | if (has_tlab) { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 3447 | DCHECK(tlsPtr_.thread_local_start != nullptr && tlsPtr_.thread_local_end != nullptr); |
Hiroshi Yamauchi | c93c530 | 2014-03-20 16:15:37 -0700 | [diff] [blame] | 3448 | } else { |
Ian Rogers | dd7624d | 2014-03-14 17:43:00 -0700 | [diff] [blame] | 3449 | DCHECK(tlsPtr_.thread_local_start == nullptr && tlsPtr_.thread_local_end == nullptr); |
Hiroshi Yamauchi | c93c530 | 2014-03-20 16:15:37 -0700 | [diff] [blame] | 3450 | } |
| 3451 | return has_tlab; |
| 3452 | } |
| 3453 | |
Elliott Hughes | 330304d | 2011-08-12 14:28:05 -0700 | [diff] [blame] | 3454 | std::ostream& operator<<(std::ostream& os, const Thread& thread) { |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 3455 | thread.ShortDump(os); |
Elliott Hughes | 330304d | 2011-08-12 14:28:05 -0700 | [diff] [blame] | 3456 | return os; |
| 3457 | } |
| 3458 | |
Andreas Gampe | 2c2d2a0 | 2016-03-17 21:27:19 -0700 | [diff] [blame] | 3459 | bool Thread::ProtectStack(bool fatal_on_error) { |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 3460 | void* pregion = tlsPtr_.stack_begin - kStackOverflowProtectedSize; |
| 3461 | VLOG(threads) << "Protecting stack at " << pregion; |
| 3462 | if (mprotect(pregion, kStackOverflowProtectedSize, PROT_NONE) == -1) { |
Andreas Gampe | 2c2d2a0 | 2016-03-17 21:27:19 -0700 | [diff] [blame] | 3463 | if (fatal_on_error) { |
| 3464 | LOG(FATAL) << "Unable to create protected region in stack for implicit overflow check. " |
| 3465 | "Reason: " |
| 3466 | << strerror(errno) << " size: " << kStackOverflowProtectedSize; |
| 3467 | } |
| 3468 | return false; |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 3469 | } |
Andreas Gampe | 2c2d2a0 | 2016-03-17 21:27:19 -0700 | [diff] [blame] | 3470 | return true; |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 3471 | } |
| 3472 | |
| 3473 | bool Thread::UnprotectStack() { |
| 3474 | void* pregion = tlsPtr_.stack_begin - kStackOverflowProtectedSize; |
| 3475 | VLOG(threads) << "Unprotecting stack at " << pregion; |
| 3476 | return mprotect(pregion, kStackOverflowProtectedSize, PROT_READ|PROT_WRITE) == 0; |
| 3477 | } |
| 3478 | |
Sebastien Hertz | 597c4f0 | 2015-01-26 17:37:14 +0100 | [diff] [blame] | 3479 | void Thread::ActivateSingleStepControl(SingleStepControl* ssc) { |
| 3480 | CHECK(Dbg::IsDebuggerActive()); |
| 3481 | CHECK(GetSingleStepControl() == nullptr) << "Single step already active in thread " << *this; |
| 3482 | CHECK(ssc != nullptr); |
| 3483 | tlsPtr_.single_step_control = ssc; |
| 3484 | } |
| 3485 | |
| 3486 | void Thread::DeactivateSingleStepControl() { |
| 3487 | CHECK(Dbg::IsDebuggerActive()); |
| 3488 | CHECK(GetSingleStepControl() != nullptr) << "Single step not active in thread " << *this; |
| 3489 | SingleStepControl* ssc = GetSingleStepControl(); |
| 3490 | tlsPtr_.single_step_control = nullptr; |
| 3491 | delete ssc; |
| 3492 | } |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 3493 | |
Sebastien Hertz | 1558b57 | 2015-02-25 15:05:59 +0100 | [diff] [blame] | 3494 | void Thread::SetDebugInvokeReq(DebugInvokeReq* req) { |
| 3495 | CHECK(Dbg::IsDebuggerActive()); |
| 3496 | CHECK(GetInvokeReq() == nullptr) << "Debug invoke req already active in thread " << *this; |
| 3497 | CHECK(Thread::Current() != this) << "Debug invoke can't be dispatched by the thread itself"; |
| 3498 | CHECK(req != nullptr); |
| 3499 | tlsPtr_.debug_invoke_req = req; |
| 3500 | } |
| 3501 | |
| 3502 | void Thread::ClearDebugInvokeReq() { |
Sebastien Hertz | 1558b57 | 2015-02-25 15:05:59 +0100 | [diff] [blame] | 3503 | CHECK(GetInvokeReq() != nullptr) << "Debug invoke req not active in thread " << *this; |
| 3504 | CHECK(Thread::Current() == this) << "Debug invoke must be finished by the thread itself"; |
Sebastien Hertz | cbc5064 | 2015-06-01 17:33:12 +0200 | [diff] [blame] | 3505 | DebugInvokeReq* req = tlsPtr_.debug_invoke_req; |
Sebastien Hertz | 1558b57 | 2015-02-25 15:05:59 +0100 | [diff] [blame] | 3506 | tlsPtr_.debug_invoke_req = nullptr; |
Sebastien Hertz | cbc5064 | 2015-06-01 17:33:12 +0200 | [diff] [blame] | 3507 | delete req; |
Sebastien Hertz | 1558b57 | 2015-02-25 15:05:59 +0100 | [diff] [blame] | 3508 | } |
| 3509 | |
Mathieu Chartier | d0ad2ee | 2015-03-31 14:59:59 -0700 | [diff] [blame] | 3510 | void Thread::PushVerifier(verifier::MethodVerifier* verifier) { |
| 3511 | verifier->link_ = tlsPtr_.method_verifier; |
Mathieu Chartier | 12d625f | 2015-03-13 11:33:37 -0700 | [diff] [blame] | 3512 | tlsPtr_.method_verifier = verifier; |
| 3513 | } |
| 3514 | |
Mathieu Chartier | d0ad2ee | 2015-03-31 14:59:59 -0700 | [diff] [blame] | 3515 | void Thread::PopVerifier(verifier::MethodVerifier* verifier) { |
Mathieu Chartier | 12d625f | 2015-03-13 11:33:37 -0700 | [diff] [blame] | 3516 | CHECK_EQ(tlsPtr_.method_verifier, verifier); |
Mathieu Chartier | d0ad2ee | 2015-03-31 14:59:59 -0700 | [diff] [blame] | 3517 | tlsPtr_.method_verifier = verifier->link_; |
Mathieu Chartier | 12d625f | 2015-03-13 11:33:37 -0700 | [diff] [blame] | 3518 | } |
| 3519 | |
Mathieu Chartier | 14c3bf9 | 2015-07-13 14:35:43 -0700 | [diff] [blame] | 3520 | size_t Thread::NumberOfHeldMutexes() const { |
| 3521 | size_t count = 0; |
| 3522 | for (BaseMutex* mu : tlsPtr_.held_mutexes) { |
Mathieu Chartier | 90ef3db | 2015-08-04 15:19:41 -0700 | [diff] [blame] | 3523 | count += mu != nullptr ? 1 : 0; |
Mathieu Chartier | 14c3bf9 | 2015-07-13 14:35:43 -0700 | [diff] [blame] | 3524 | } |
| 3525 | return count; |
| 3526 | } |
| 3527 | |
Nicolas Geoffray | b331feb | 2016-02-05 16:51:53 +0000 | [diff] [blame] | 3528 | void Thread::DeoptimizeWithDeoptimizationException(JValue* result) { |
| 3529 | DCHECK_EQ(GetException(), Thread::GetDeoptimizationException()); |
| 3530 | ClearException(); |
| 3531 | ShadowFrame* shadow_frame = |
| 3532 | PopStackedShadowFrame(StackedShadowFrameType::kDeoptimizationShadowFrame); |
Mathieu Chartier | f5769e1 | 2017-01-10 15:54:41 -0800 | [diff] [blame] | 3533 | ObjPtr<mirror::Throwable> pending_exception; |
Nicolas Geoffray | b331feb | 2016-02-05 16:51:53 +0000 | [diff] [blame] | 3534 | bool from_code = false; |
| 3535 | PopDeoptimizationContext(result, &pending_exception, &from_code); |
Nicolas Geoffray | b331feb | 2016-02-05 16:51:53 +0000 | [diff] [blame] | 3536 | SetTopOfStack(nullptr); |
| 3537 | SetTopOfShadowStack(shadow_frame); |
| 3538 | |
| 3539 | // Restore the exception that was pending before deoptimization then interpret the |
| 3540 | // deoptimized frames. |
| 3541 | if (pending_exception != nullptr) { |
| 3542 | SetException(pending_exception); |
| 3543 | } |
| 3544 | interpreter::EnterInterpreterFromDeoptimize(this, shadow_frame, from_code, result); |
| 3545 | } |
| 3546 | |
Mathieu Chartier | 0795f23 | 2016-09-27 18:43:30 -0700 | [diff] [blame] | 3547 | void Thread::SetException(ObjPtr<mirror::Throwable> new_exception) { |
Mathieu Chartier | e42888f | 2016-04-14 10:49:19 -0700 | [diff] [blame] | 3548 | CHECK(new_exception != nullptr); |
| 3549 | // TODO: DCHECK(!IsExceptionPending()); |
Mathieu Chartier | 1cc62e4 | 2016-10-03 18:01:28 -0700 | [diff] [blame] | 3550 | tlsPtr_.exception = new_exception.Ptr(); |
Mathieu Chartier | e42888f | 2016-04-14 10:49:19 -0700 | [diff] [blame] | 3551 | } |
| 3552 | |
Andreas Gampe | 2c19f5b | 2016-11-28 08:10:18 -0800 | [diff] [blame] | 3553 | bool Thread::IsAotCompiler() { |
| 3554 | return Runtime::Current()->IsAotCompiler(); |
| 3555 | } |
| 3556 | |
Andreas Gampe | 202f85a | 2017-02-06 10:23:26 -0800 | [diff] [blame] | 3557 | mirror::Object* Thread::GetPeerFromOtherThread() const { |
Nicolas Geoffray | ffc8cad | 2017-02-10 10:59:22 +0000 | [diff] [blame] | 3558 | DCHECK(tlsPtr_.jpeer == nullptr); |
| 3559 | mirror::Object* peer = tlsPtr_.opeer; |
Andreas Gampe | 202f85a | 2017-02-06 10:23:26 -0800 | [diff] [blame] | 3560 | if (kUseReadBarrier && Current()->GetIsGcMarking()) { |
| 3561 | // We may call Thread::Dump() in the middle of the CC thread flip and this thread's stack |
| 3562 | // may have not been flipped yet and peer may be a from-space (stale) ref. So explicitly |
| 3563 | // mark/forward it here. |
| 3564 | peer = art::ReadBarrier::Mark(peer); |
| 3565 | } |
| 3566 | return peer; |
| 3567 | } |
| 3568 | |
Elliott Hughes | 8daa092 | 2011-09-11 13:46:25 -0700 | [diff] [blame] | 3569 | } // namespace art |