thread.cc revision f5b0e20b5b31f5f5465784adcf2a204dcd69c7fd
18d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes/* 28d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * Copyright (C) 2011 The Android Open Source Project 38d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * 48d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * Licensed under the Apache License, Version 2.0 (the "License"); 58d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * you may not use this file except in compliance with the License. 68d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * You may obtain a copy of the License at 78d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * 88d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * http://www.apache.org/licenses/LICENSE-2.0 98d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * 108d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * Unless required by applicable law or agreed to in writing, software 118d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * distributed under the License is distributed on an "AS IS" BASIS, 128d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 138d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * See the License for the specific language governing permissions and 148d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * limitations under the License. 158d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes */ 16b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 17752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier#define ATRACE_TAG ATRACE_TAG_DALVIK 18752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier 19578bbdc684db8ed68e9fedbc678669d27fa68b6eBrian Carlstrom#include "thread.h" 20b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 21752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier#include <cutils/trace.h> 22b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers#include <pthread.h> 232acf36d8cfeb5ddb293904148aa70f25ef6d8845Elliott Hughes#include <signal.h> 24dbf05b722af99ba2fd2f4c4fc7eb6c3e9880e5d1Brian Carlstrom#include <sys/resource.h> 25dbf05b722af99ba2fd2f4c4fc7eb6c3e9880e5d1Brian Carlstrom#include <sys/time.h> 26a09576416788b916095739e43a16917e7948f3a4Elliott Hughes 27b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro#include <algorithm> 28dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes#include <bitset> 29eb4f614f2eb53b92ebd416fa418f550861655887Elliott Hughes#include <cerrno> 30a09576416788b916095739e43a16917e7948f3a4Elliott Hughes#include <iostream> 31b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro#include <list> 32b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 33166db04e259ca51838c311891598664deeed85adIan Rogers#include "arch/context.h" 3476b6167407c2b6f5d40ad895b2793a6b037f54b2Elliott Hughes#include "base/mutex.h" 35d45a1f5d1dd5bc9badfab3a8aee90c934d9f2227Sebastien Hertz#include "catch_finder.h" 36a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes#include "class_linker.h" 372dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "class_linker-inl.h" 38474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers#include "cutils/atomic.h" 39474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers#include "cutils/atomic-inline.h" 4046e251bf7200cc06f5a9a82ee2030e650f5e1443Elliott Hughes#include "debugger.h" 414f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers#include "dex_file-inl.h" 427655f29fabc0a12765de828914a18314382e5a35Ian Rogers#include "entrypoints/entrypoint_utils.h" 430c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers#include "gc_map.h" 441d54e73444e017d3a65234e0f193846f3e27472bIan Rogers#include "gc/accounting/card_table-inl.h" 451d54e73444e017d3a65234e0f193846f3e27472bIan Rogers#include "gc/heap.h" 461d54e73444e017d3a65234e0f193846f3e27472bIan Rogers#include "gc/space/space.h" 475d9173014c1ca09f7249a6b07629aa37778b5f8fJeff Hao#include "invoke_arg_array_builder.h" 48c5f7c91ab89055cffb573fff7e06dbdd860bccedElliott Hughes#include "jni_internal.h" 49ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom#include "mirror/art_field-inl.h" 50ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom#include "mirror/art_method-inl.h" 512dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/class-inl.h" 522dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/class_loader.h" 532dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/object_array-inl.h" 542dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/stack_trace_element.h" 558e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes#include "monitor.h" 566d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers#include "object_utils.h" 579a6bae896a2f003d7216603bf29771d105c10ca4Jesse Wilson#include "reflection.h" 58578bbdc684db8ed68e9fedbc678669d27fa68b6eBrian Carlstrom#include "runtime.h" 5900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers#include "scoped_thread_state_change.h" 6046e251bf7200cc06f5a9a82ee2030e650f5e1443Elliott Hughes#include "ScopedLocalRef.h" 613c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum#include "ScopedUtfChars.h" 621f5393447b9f45be7918042d9ee7b521376de866Ian Rogers#include "sirt_ref.h" 6368e76526e98432625464022cb26f66b9ef6f5af4Elliott Hughes#include "stack.h" 6468e76526e98432625464022cb26f66b9ef6f5af4Elliott Hughes#include "stack_indirect_reference_table.h" 65693ff61274cd2c9b8eb7e68c370f84a911b8ca52Ian Rogers#include "thread-inl.h" 668daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes#include "thread_list.h" 67a09576416788b916095739e43a16917e7948f3a4Elliott Hughes#include "utils.h" 68ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa#include "verifier/dex_gc_map.h" 691809a72a66d245ae598582d658b93a24ac3bf01eIan Rogers#include "vmap_table.h" 70eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes#include "well_known_classes.h" 71b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 72b557353b22c728eecbd1c68593b482622c7782a8Carl Shapironamespace art { 73b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 740878d654e7be8c9666579e22522704d8887415ccIan Rogersbool Thread::is_started_ = false; 75b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiropthread_key_t Thread::pthread_key_self_; 760aded089f565008ba5908e395e5914ca4f91f2deDave AllisonConditionVariable* Thread::resume_cond_ = nullptr; 77b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 787dc5166ea740359d381097a7ab382c1dd404055fElliott Hughesstatic const char* kThreadNameDuringStartup = "<native thread without managed peer>"; 797dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes 805d76c435082332ef79a22962386fa92a0870e378Ian Rogersvoid Thread::InitCardTable() { 81b3bd5f07884f5a1f2b84224363b1372d7c28d447Elliott Hughes card_table_ = Runtime::Current()->GetHeap()->GetCardTable()->GetBiasedBegin(); 825d76c435082332ef79a22962386fa92a0870e378Ian Rogers} 835d76c435082332ef79a22962386fa92a0870e378Ian Rogers 8499250ba6a2cc72b8894dffa77c1fca5570087e3cElliott Hughes#if !defined(__APPLE__) 853ea0f42467790809fcfc9fc861605d465808090fElliott Hughesstatic void UnimplementedEntryPoint() { 863ea0f42467790809fcfc9fc861605d465808090fElliott Hughes UNIMPLEMENTED(FATAL); 873ea0f42467790809fcfc9fc861605d465808090fElliott Hughes} 8899250ba6a2cc72b8894dffa77c1fca5570087e3cElliott Hughes#endif 893ea0f42467790809fcfc9fc861605d465808090fElliott Hughes 90848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogersvoid InitEntryPoints(InterpreterEntryPoints* ipoints, JniEntryPoints* jpoints, 91848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers PortableEntryPoints* ppoints, QuickEntryPoints* qpoints); 927655f29fabc0a12765de828914a18314382e5a35Ian Rogers 93848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogersvoid Thread::InitTlsEntryPoints() { 947934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom#if !defined(__APPLE__) // The Mac GCC is too old to accept this code. 953ea0f42467790809fcfc9fc861605d465808090fElliott Hughes // Insert a placeholder so we can easily tell if we call an unimplemented entry point. 96848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers uintptr_t* begin = reinterpret_cast<uintptr_t*>(&interpreter_entrypoints_); 977655f29fabc0a12765de828914a18314382e5a35Ian Rogers uintptr_t* end = reinterpret_cast<uintptr_t*>(reinterpret_cast<uint8_t*>(begin) + sizeof(quick_entrypoints_)); 987655f29fabc0a12765de828914a18314382e5a35Ian Rogers for (uintptr_t* it = begin; it != end; ++it) { 997655f29fabc0a12765de828914a18314382e5a35Ian Rogers *it = reinterpret_cast<uintptr_t>(UnimplementedEntryPoint); 1007655f29fabc0a12765de828914a18314382e5a35Ian Rogers } 101848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers begin = reinterpret_cast<uintptr_t*>(&interpreter_entrypoints_); 1027655f29fabc0a12765de828914a18314382e5a35Ian Rogers end = reinterpret_cast<uintptr_t*>(reinterpret_cast<uint8_t*>(begin) + sizeof(portable_entrypoints_)); 1033ea0f42467790809fcfc9fc861605d465808090fElliott Hughes for (uintptr_t* it = begin; it != end; ++it) { 1043ea0f42467790809fcfc9fc861605d465808090fElliott Hughes *it = reinterpret_cast<uintptr_t>(UnimplementedEntryPoint); 1053ea0f42467790809fcfc9fc861605d465808090fElliott Hughes } 10699250ba6a2cc72b8894dffa77c1fca5570087e3cElliott Hughes#endif 107848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers InitEntryPoints(&interpreter_entrypoints_, &jni_entrypoints_, &portable_entrypoints_, 108848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers &quick_entrypoints_); 109c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes} 110c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes 1113b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchivoid ResetQuickAllocEntryPoints(QuickEntryPoints* qpoints); 1123b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchi 1133b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchivoid Thread::ResetQuickAllocEntryPointsForThread() { 1143b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchi ResetQuickAllocEntryPoints(&quick_entrypoints_); 1153b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchi} 1163b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchi 11762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::SetDeoptimizationShadowFrame(ShadowFrame* sf) { 11862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers deoptimization_shadow_frame_ = sf; 1193ea4ec5629613013ad9b0d7a69abdb94491ac46fbuzbee} 1203ea4ec5629613013ad9b0d7a69abdb94491ac46fbuzbee 12162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::SetDeoptimizationReturnValue(const JValue& ret_val) { 122306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers deoptimization_return_value_.SetJ(ret_val.GetJ()); 123306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers} 124306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers 125306057fd278d75bf3794bd5243a3b6652c487d18Ian RogersShadowFrame* Thread::GetAndClearDeoptimizationShadowFrame(JValue* ret_val) { 126306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers ShadowFrame* sf = deoptimization_shadow_frame_; 1270aded089f565008ba5908e395e5914ca4f91f2deDave Allison deoptimization_shadow_frame_ = nullptr; 128306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers ret_val->SetJ(deoptimization_return_value_.GetJ()); 129306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers return sf; 130306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers} 131306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers 132caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstromvoid Thread::InitTid() { 133caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom tid_ = ::art::GetTid(); 134caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom} 135caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom 136caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstromvoid Thread::InitAfterFork() { 1378029cbe626a467b344ff84d86170d757aa12ecd4Elliott Hughes // One thread (us) survived the fork, but we have a new tid so we need to 1388029cbe626a467b344ff84d86170d757aa12ecd4Elliott Hughes // update the value stashed in this Thread*. 139caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom InitTid(); 140caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom} 141caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom 14278128a63b2615744760b7f8ab83df9764a5d4a95Brian Carlstromvoid* Thread::CreateCallback(void* arg) { 14393e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes Thread* self = reinterpret_cast<Thread*>(arg); 144120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime* runtime = Runtime::Current(); 1450aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (runtime == nullptr) { 146120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << "Thread attaching to non-existent runtime: " << *self; 1470aded089f565008ba5908e395e5914ca4f91f2deDave Allison return nullptr; 148120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 149120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers { 15050b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers // TODO: pass self to MutexLock - requires self to equal Thread::Current(), which is only true 15150b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers // after self->Init(). 1520aded089f565008ba5908e395e5914ca4f91f2deDave Allison MutexLock mu(nullptr, *Locks::runtime_shutdown_lock_); 153120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Check that if we got here we cannot be shutting down (as shutdown should never have started 154120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // while threads are being born). 155590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier CHECK(!runtime->IsShuttingDownLocked()); 156120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers self->Init(runtime->GetThreadList(), runtime->GetJavaVM()); 157120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime::Current()->EndThreadBirth(); 158120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 15947179f76e3f03fe3eb21dfb081d50733ca316371Elliott Hughes { 16000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(self); 161cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers 162cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers // Copy peer into self, deleting global reference when done. 1630aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(self->jpeer_ != nullptr); 1642dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers self->opeer_ = soa.Decode<mirror::Object*>(self->jpeer_); 165cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers self->GetJniEnv()->DeleteGlobalRef(self->jpeer_); 1660aded089f565008ba5908e395e5914ca4f91f2deDave Allison self->jpeer_ = nullptr; 167cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers 168365c10235438607541fa2259a5fec48061b90bd8Ian Rogers { 1692dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::String> thread_name(self, self->GetThreadName(soa)); 170365c10235438607541fa2259a5fec48061b90bd8Ian Rogers self->SetThreadName(thread_name->ToModifiedUtf8().c_str()); 171365c10235438607541fa2259a5fec48061b90bd8Ian Rogers } 172365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Dbg::PostThreadStart(self); 17393e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 174365c10235438607541fa2259a5fec48061b90bd8Ian Rogers // Invoke the 'run' method of our java.lang.Thread. 1752dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* receiver = self->opeer_; 176365c10235438607541fa2259a5fec48061b90bd8Ian Rogers jmethodID mid = WellKnownClasses::java_lang_Thread_run; 177ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = 178cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers receiver->GetClass()->FindVirtualMethodForVirtualOrInterface(soa.DecodeMethod(mid)); 1795d9173014c1ca09f7249a6b07629aa37778b5f8fJeff Hao JValue result; 1800aded089f565008ba5908e395e5914ca4f91f2deDave Allison ArgArray arg_array(nullptr, 0); 181ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers arg_array.Append(receiver); 1820177e53ea521ad58b70c305700dab32f1ac773b7Ian Rogers m->Invoke(self, arg_array.GetArray(), arg_array.GetNumBytes(), &result, "V"); 183365c10235438607541fa2259a5fec48061b90bd8Ian Rogers } 18400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Detach and delete self. 18500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Runtime::Current()->GetThreadList()->Unregister(self); 18693e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 1870aded089f565008ba5908e395e5914ca4f91f2deDave Allison return nullptr; 188b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro} 189b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 1902dd0e2cea360bc9206eb88ecc40d259e796c239dIan RogersThread* Thread::FromManagedThread(const ScopedObjectAccessUnchecked& soa, 1912dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* thread_peer) { 192ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtField* f = soa.DecodeField(WellKnownClasses::java_lang_Thread_nativePeer); 193ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers Thread* result = reinterpret_cast<Thread*>(static_cast<uintptr_t>(f->GetLong(thread_peer))); 19400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Sanity check that if we have a result it is either suspended or we hold the thread_list_lock_ 19500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // to stop it from going away. 19681d425b0b232962441616f8b14f73620bffef5e5Ian Rogers if (kIsDebugBuild) { 19781d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(soa.Self(), *Locks::thread_suspend_count_lock_); 1980aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (result != nullptr && !result->IsSuspended()) { 19981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers Locks::thread_list_lock_->AssertHeld(soa.Self()); 20081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers } 20100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 20200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return result; 203761928d24e4e7ed7776b52243eaf9095ad35f448Elliott Hughes} 204761928d24e4e7ed7776b52243eaf9095ad35f448Elliott Hughes 20500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan RogersThread* Thread::FromManagedThread(const ScopedObjectAccessUnchecked& soa, jobject java_thread) { 2062dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers return FromManagedThread(soa, soa.Decode<mirror::Object*>(java_thread)); 20701158d7a57c8321370667a6045220237d16e0da8Elliott Hughes} 20801158d7a57c8321370667a6045220237d16e0da8Elliott Hughes 209ab7b9dcbfc4264a0bc4889c3e463ff88a67f6a30Elliott Hughesstatic size_t FixStackSize(size_t stack_size) { 2107502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // A stack size of zero means "use the default". 211d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes if (stack_size == 0) { 212d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes stack_size = Runtime::Current()->GetDefaultStackSize(); 213d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 21461e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 2156414a97a3c6dc101ae8ebc9480114d0c327e8e8dBrian Carlstrom // Dalvik used the bionic pthread default stack size for native threads, 2166414a97a3c6dc101ae8ebc9480114d0c327e8e8dBrian Carlstrom // so include that here to support apps that expect large native stacks. 2176414a97a3c6dc101ae8ebc9480114d0c327e8e8dBrian Carlstrom stack_size += 1 * MB; 2186414a97a3c6dc101ae8ebc9480114d0c327e8e8dBrian Carlstrom 2197502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // It's not possible to request a stack smaller than the system-defined PTHREAD_STACK_MIN. 2207502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes if (stack_size < PTHREAD_STACK_MIN) { 2217502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes stack_size = PTHREAD_STACK_MIN; 2227502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes } 2237502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 2247502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // It's likely that callers are trying to ensure they have at least a certain amount of 2257502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // stack space, so we should add our reserved space on top of what they requested, rather 2267502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // than implicitly take it away from them. 2277502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes stack_size += Thread::kStackOverflowReservedBytes; 2287502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 2297502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // Some systems require the stack size to be a multiple of the system page size, so round up. 2307502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes stack_size = RoundUp(stack_size, kPageSize); 2317502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 2327502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes return stack_size; 2337502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes} 2347502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 235120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogersvoid Thread::CreateNativeThread(JNIEnv* env, jobject java_peer, size_t stack_size, bool is_daemon) { 2360aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(java_peer != nullptr); 237120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self = static_cast<JNIEnvExt*>(env)->self; 238120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime* runtime = Runtime::Current(); 239dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier 240120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Atomically start the birth of the thread ensuring the runtime isn't shutting down. 241120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers bool thread_start_during_shutdown = false; 242365c10235438607541fa2259a5fec48061b90bd8Ian Rogers { 243120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers MutexLock mu(self, *Locks::runtime_shutdown_lock_); 244590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier if (runtime->IsShuttingDownLocked()) { 245120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers thread_start_during_shutdown = true; 246120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } else { 247120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers runtime->StartThreadBirth(); 248120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 24900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 250120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (thread_start_during_shutdown) { 251120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedLocalRef<jclass> error_class(env, env->FindClass("java/lang/InternalError")); 252120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers env->ThrowNew(error_class.get(), "Thread starting during runtime shutdown"); 253120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers return; 254120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 255120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 256120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* child_thread = new Thread(is_daemon); 257120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Use global JNI ref to hold peer live while child thread starts. 258cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers child_thread->jpeer_ = env->NewGlobalRef(java_peer); 259120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers stack_size = FixStackSize(stack_size); 260120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 2613c50a4b4ba6d7d9369ee9a0bd6d30bf4c9c79bb0Anwar Ghuloum // Thread.start is synchronized, so we know that nativePeer is 0, and know that we're not racing to 262120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // assign it. 263ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers env->SetLongField(java_peer, WellKnownClasses::java_lang_Thread_nativePeer, 264ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers reinterpret_cast<jlong>(child_thread)); 26500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 26600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers pthread_t new_pthread; 26700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers pthread_attr_t attr; 26800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_PTHREAD_CALL(pthread_attr_init, (&attr), "new thread"); 26900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_PTHREAD_CALL(pthread_attr_setdetachstate, (&attr, PTHREAD_CREATE_DETACHED), "PTHREAD_CREATE_DETACHED"); 27000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_PTHREAD_CALL(pthread_attr_setstacksize, (&attr, stack_size), stack_size); 271120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers int pthread_create_result = pthread_create(&new_pthread, &attr, Thread::CreateCallback, child_thread); 27200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_PTHREAD_CALL(pthread_attr_destroy, (&attr), "new thread"); 27300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 274120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (pthread_create_result != 0) { 27500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // pthread_create(3) failed, so clean up. 2769efc3e03982f042c3ce67cc2c64dbe0f0986119bBrian Carlstrom { 277120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers MutexLock mu(self, *Locks::runtime_shutdown_lock_); 278120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers runtime->EndThreadBirth(); 279120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 280120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Manually delete the global reference since Thread::Init will not have been run. 281cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers env->DeleteGlobalRef(child_thread->jpeer_); 2820aded089f565008ba5908e395e5914ca4f91f2deDave Allison child_thread->jpeer_ = nullptr; 283120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers delete child_thread; 2840aded089f565008ba5908e395e5914ca4f91f2deDave Allison child_thread = nullptr; 285120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // TODO: remove from thread group? 286ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers env->SetLongField(java_peer, WellKnownClasses::java_lang_Thread_nativePeer, 0); 287120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers { 2889efc3e03982f042c3ce67cc2c64dbe0f0986119bBrian Carlstrom std::string msg(StringPrintf("pthread_create (%s stack) failed: %s", 2899efc3e03982f042c3ce67cc2c64dbe0f0986119bBrian Carlstrom PrettySize(stack_size).c_str(), strerror(pthread_create_result))); 290120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedObjectAccess soa(env); 291120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers soa.Self()->ThrowOutOfMemoryError(msg.c_str()); 2929efc3e03982f042c3ce67cc2c64dbe0f0986119bBrian Carlstrom } 293365c10235438607541fa2259a5fec48061b90bd8Ian Rogers } 29493e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes} 29561e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 296120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogersvoid Thread::Init(ThreadList* thread_list, JavaVMExt* java_vm) { 297462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // This function does all the initialization that must be run by the native thread it applies to. 298462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // (When we create a new thread from managed code, we allocate the Thread* in Thread::Create so 299462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // we can handshake with the corresponding native thread when it's ready.) Check this native 300462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // thread hasn't been through here already... 3010aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(Thread::Current() == nullptr); 302d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes SetUpAlternateSignalStack(); 30393e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes InitCpu(); 304848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers InitTlsEntryPoints(); 3055d76c435082332ef79a22962386fa92a0870e378Ian Rogers InitCardTable(); 30601ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers InitTid(); 307120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Set pthread_self_ ahead of pthread_setspecific, that makes Thread::Current function, this 308120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // avoids pthread_self_ ever being invalid when discovered from Thread::Current(). 3090d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes pthread_self_ = pthread_self(); 3100878d654e7be8c9666579e22522704d8887415ccIan Rogers CHECK(is_started_); 3116a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes CHECK_PTHREAD_CALL(pthread_setspecific, (Thread::pthread_key_self_, this), "attach self"); 312120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers DCHECK_EQ(Thread::Current(), this); 313a5780dad67556297c8ca5f2608c53b193e6c4514Elliott Hughes 314d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers thin_lock_thread_id_ = thread_list->AllocThreadId(this); 315120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers InitStackHwm(); 3165fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 317120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_ = new JNIEnvExt(this, java_vm); 318120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers thread_list->Register(this); 31993e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes} 32093e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 321664bebf92eb2151b9b570ccd42ac4b6056c3ea9cMathieu ChartierThread* Thread::Attach(const char* thread_name, bool as_daemon, jobject thread_group, 322664bebf92eb2151b9b570ccd42ac4b6056c3ea9cMathieu Chartier bool create_peer) { 323120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self; 324120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime* runtime = Runtime::Current(); 3250aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (runtime == nullptr) { 326120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << "Thread attaching to non-existent runtime: " << thread_name; 3270aded089f565008ba5908e395e5914ca4f91f2deDave Allison return nullptr; 328120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 329120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers { 3300aded089f565008ba5908e395e5914ca4f91f2deDave Allison MutexLock mu(nullptr, *Locks::runtime_shutdown_lock_); 331590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier if (runtime->IsShuttingDownLocked()) { 332120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << "Thread attaching while runtime is shutting down: " << thread_name; 3330aded089f565008ba5908e395e5914ca4f91f2deDave Allison return nullptr; 334120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } else { 335120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime::Current()->StartThreadBirth(); 336120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers self = new Thread(as_daemon); 337120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers self->Init(runtime->GetThreadList(), runtime->GetJavaVM()); 338120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime::Current()->EndThreadBirth(); 339120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 340120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 3415fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 342dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier CHECK_NE(self->GetState(), kRunnable); 343dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier self->SetState(kNative); 344726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes 345cac6cc72c3331257fa6437b36a131e5d551e2f3cElliott Hughes // If we're the main thread, ClassLinker won't be created until after we're attached, 346cac6cc72c3331257fa6437b36a131e5d551e2f3cElliott Hughes // so that thread needs a two-stage attach. Regular threads don't need this hack. 347d9c67be7c116875d96b31e640ad47d587b205605Elliott Hughes // In the compiler, all threads need this hack, because no-one's going to be getting 348d9c67be7c116875d96b31e640ad47d587b205605Elliott Hughes // a native peer! 349664bebf92eb2151b9b570ccd42ac4b6056c3ea9cMathieu Chartier if (create_peer) { 350462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes self->CreatePeer(thread_name, as_daemon, thread_group); 35106e3ad4a651c2c58dba5e865cd06d2f98462bf1dElliott Hughes } else { 35206e3ad4a651c2c58dba5e865cd06d2f98462bf1dElliott Hughes // These aren't necessary, but they improve diagnostics for unit tests & command-line tools. 3530aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (thread_name != nullptr) { 35422869a9026a08b544eca4cefd67386d347e30d2cElliott Hughes self->name_->assign(thread_name); 35522869a9026a08b544eca4cefd67386d347e30d2cElliott Hughes ::art::SetThreadName(thread_name); 35622869a9026a08b544eca4cefd67386d347e30d2cElliott Hughes } 35736e0a955e48e9357bff1eab783e493107ebfff62Ian Rogers } 358cac6cc72c3331257fa6437b36a131e5d551e2f3cElliott Hughes 3595fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes return self; 3605fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes} 3615fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 362365c10235438607541fa2259a5fec48061b90bd8Ian Rogersvoid Thread::CreatePeer(const char* name, bool as_daemon, jobject thread_group) { 363365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Runtime* runtime = Runtime::Current(); 364365c10235438607541fa2259a5fec48061b90bd8Ian Rogers CHECK(runtime->IsStarted()); 3655fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes JNIEnv* env = jni_env_; 3665fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 3670aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (thread_group == nullptr) { 368365c10235438607541fa2259a5fec48061b90bd8Ian Rogers thread_group = runtime->GetMainThreadGroup(); 369462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes } 370726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes ScopedLocalRef<jobject> thread_name(env, env->NewStringUTF(name)); 3718daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes jint thread_priority = GetNativePriority(); 3725fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes jboolean thread_is_daemon = as_daemon; 3735fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 374eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes ScopedLocalRef<jobject> peer(env, env->AllocObject(WellKnownClasses::java_lang_Thread)); 3750aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (peer.get() == nullptr) { 376dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier CHECK(IsExceptionPending()); 377dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier return; 3785d4bdc29737a693027daaf6ed3f0792368eb4baeIan Rogers } 379cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers { 380cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedObjectAccess soa(this); 3812dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers opeer_ = soa.Decode<mirror::Object*>(peer.get()); 382cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers } 383eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes env->CallNonvirtualVoidMethod(peer.get(), 384eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes WellKnownClasses::java_lang_Thread, 385eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes WellKnownClasses::java_lang_Thread_init, 386365c10235438607541fa2259a5fec48061b90bd8Ian Rogers thread_group, thread_name.get(), thread_priority, thread_is_daemon); 38700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers AssertNoPendingException(); 388d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 389120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self = this; 390120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers DCHECK_EQ(self, Thread::Current()); 391ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers jni_env_->SetLongField(peer.get(), WellKnownClasses::java_lang_Thread_nativePeer, 392ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers reinterpret_cast<jlong>(self)); 393120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 394120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedObjectAccess soa(self); 3952dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::String> peer_thread_name(soa.Self(), GetThreadName(soa)); 3960aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (peer_thread_name.get() == nullptr) { 39700fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom // The Thread constructor should have set the Thread.name to a 39800fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom // non-null value. However, because we can run without code 39900fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom // available (in the compiler, in tests), we manually assign the 40000fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom // fields the constructor should have set. 401dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier soa.DecodeField(WellKnownClasses::java_lang_Thread_daemon)-> 402cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers SetBoolean(opeer_, thread_is_daemon); 403dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier soa.DecodeField(WellKnownClasses::java_lang_Thread_group)-> 4042dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SetObject(opeer_, soa.Decode<mirror::Object*>(thread_group)); 405dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier soa.DecodeField(WellKnownClasses::java_lang_Thread_name)-> 4062dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SetObject(opeer_, soa.Decode<mirror::Object*>(thread_name.get())); 407dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier soa.DecodeField(WellKnownClasses::java_lang_Thread_priority)-> 408cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers SetInt(opeer_, thread_priority); 40900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers peer_thread_name.reset(GetThreadName(soa)); 41000fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom } 411225f5a1df25241babd16cdba54056b9e2cd166a2Elliott Hughes // 'thread_name' may have been null, so don't trust 'peer_thread_name' to be non-null. 4120aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (peer_thread_name.get() != nullptr) { 413899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes SetThreadName(peer_thread_name->ToModifiedUtf8().c_str()); 41400fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom } 41561e019d291583029c01b61b93bea750f2b663c37Carl Shapiro} 41661e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 417899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughesvoid Thread::SetThreadName(const char* name) { 418899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes name_->assign(name); 419899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes ::art::SetThreadName(name); 420899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes Dbg::DdmSendThreadNotification(this, CHUNK_TYPE("THNM")); 421899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes} 422899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes 423be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughesvoid Thread::InitStackHwm() { 424e188419b971936086a188843378375f5ced13724Elliott Hughes void* stack_base; 425e188419b971936086a188843378375f5ced13724Elliott Hughes size_t stack_size; 4262921201dce37ba40c55b89c0deca3c34bf64168eBrian Carlstrom GetThreadStack(pthread_self_, &stack_base, &stack_size); 42736ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 42836ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // TODO: include this in the thread dumps; potentially useful in SIGQUIT output? 429e188419b971936086a188843378375f5ced13724Elliott Hughes VLOG(threads) << StringPrintf("Native stack is at %p (%s)", stack_base, PrettySize(stack_size).c_str()); 430e188419b971936086a188843378375f5ced13724Elliott Hughes 431e188419b971936086a188843378375f5ced13724Elliott Hughes stack_begin_ = reinterpret_cast<byte*>(stack_base); 432e188419b971936086a188843378375f5ced13724Elliott Hughes stack_size_ = stack_size; 43336ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 434932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers if (stack_size_ <= kStackOverflowReservedBytes) { 4353d30d9b09c16542d41554aad9f46ec9109ba5cb5Elliott Hughes LOG(FATAL) << "Attempt to attach a thread with a too-small stack (" << stack_size_ << " bytes)"; 436be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 437449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes 438e188419b971936086a188843378375f5ced13724Elliott Hughes // TODO: move this into the Linux GetThreadStack implementation. 439e188419b971936086a188843378375f5ced13724Elliott Hughes#if !defined(__APPLE__) 44036ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // If we're the main thread, check whether we were run with an unlimited stack. In that case, 44136ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // glibc will have reported a 2GB stack for our 32-bit process, and our stack overflow detection 44236ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // will be broken because we'll die long before we get close to 2GB. 443120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers bool is_main_thread = (::art::GetTid() == getpid()); 444120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (is_main_thread) { 44536ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes rlimit stack_limit; 44636ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes if (getrlimit(RLIMIT_STACK, &stack_limit) == -1) { 44736ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes PLOG(FATAL) << "getrlimit(RLIMIT_STACK) failed"; 44836ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes } 44936ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes if (stack_limit.rlim_cur == RLIM_INFINITY) { 45036ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // Find the default stack size for new threads... 45136ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes pthread_attr_t default_attributes; 45236ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes size_t default_stack_size; 45336ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_init, (&default_attributes), "default stack size query"); 45436ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_getstacksize, (&default_attributes, &default_stack_size), 45536ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes "default stack size query"); 45636ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_destroy, (&default_attributes), "default stack size query"); 45736ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 45836ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // ...and use that as our limit. 45936ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes size_t old_stack_size = stack_size_; 46036ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes stack_size_ = default_stack_size; 46136ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes stack_begin_ += (old_stack_size - stack_size_); 462faf4ba01738400f418b45c4323aa9e8e6b6ba2a0Elliott Hughes VLOG(threads) << "Limiting unlimited stack (reported as " << PrettySize(old_stack_size) << ")" 463faf4ba01738400f418b45c4323aa9e8e6b6ba2a0Elliott Hughes << " to " << PrettySize(stack_size_) 464faf4ba01738400f418b45c4323aa9e8e6b6ba2a0Elliott Hughes << " with base " << reinterpret_cast<void*>(stack_begin_); 46536ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes } 46636ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes } 467e188419b971936086a188843378375f5ced13724Elliott Hughes#endif 46836ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 469932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // Set stack_end_ to the bottom of the stack saving space of stack overflows 470932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers ResetDefaultStackEnd(); 471449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes 472449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes // Sanity check. 473449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes int stack_variable; 474398f64b5805246765b699839b439e18c0dfbf2eeElliott Hughes CHECK_GT(&stack_variable, reinterpret_cast<void*>(stack_end_)); 475be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes} 476be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 47700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::ShortDump(std::ostream& os) const { 47800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers os << "Thread["; 479d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers if (GetThreadId() != 0) { 48000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // If we're in kStarting, we won't have a thin lock id or tid yet. 481d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers os << GetThreadId() 48200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << ",tid=" << GetTid() << ','; 483e0918556e7551de638870dcad3f2023f94f85a50Elliott Hughes } 484474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers os << GetState() 48500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << ",Thread*=" << this 486cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers << ",peer=" << opeer_ 48700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << ",\"" << *name_ << "\"" 48800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << "]"; 489d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes} 490d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 49100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::Dump(std::ostream& os) const { 49200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DumpState(os); 49300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DumpStack(os); 49400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 49500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 4962dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersmirror::String* Thread::GetThreadName(const ScopedObjectAccessUnchecked& soa) const { 497ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtField* f = soa.DecodeField(WellKnownClasses::java_lang_Thread_name); 4980aded089f565008ba5908e395e5914ca4f91f2deDave Allison return (opeer_ != nullptr) ? reinterpret_cast<mirror::String*>(f->GetObject(opeer_)) : nullptr; 499fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes} 500fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes 501ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughesvoid Thread::GetThreadName(std::string& name) const { 502ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes name.assign(*name_); 503ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes} 504ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes 50557dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Haouint64_t Thread::GetCpuMicroTime() const { 50657dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao#if defined(HAVE_POSIX_CLOCKS) 50757dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao clockid_t cpu_clock_id; 50857dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao pthread_getcpuclockid(pthread_self_, &cpu_clock_id); 50957dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao timespec now; 51057dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao clock_gettime(cpu_clock_id, &now); 51157dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao return static_cast<uint64_t>(now.tv_sec) * 1000000LL + now.tv_nsec / 1000LL; 51257dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao#else 51357dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao UNIMPLEMENTED(WARNING); 51457dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao return -1; 51557dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao#endif 51657dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao} 51757dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao 518474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogersvoid Thread::AtomicSetFlag(ThreadFlag flag) { 51930e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers android_atomic_or(flag, &state_and_flags_.as_int); 520474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers} 521474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers 522474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogersvoid Thread::AtomicClearFlag(ThreadFlag flag) { 52330e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers android_atomic_and(-1 ^ flag, &state_and_flags_.as_int); 524474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers} 525474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers 52601ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers// Attempt to rectify locks so that we dump thread list with required locks before exiting. 52701ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogersstatic void UnsafeLogFatalForSuspendCount(Thread* self, Thread* thread) NO_THREAD_SAFETY_ANALYSIS { 528120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << *thread << " suspend count already zero."; 52901ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::thread_suspend_count_lock_->Unlock(self); 53001ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::mutator_lock_->IsSharedHeld(self)) { 53101ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::mutator_lock_->SharedTryLock(self); 53201ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::mutator_lock_->IsSharedHeld(self)) { 53301ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers LOG(WARNING) << "Dumping thread list without holding mutator_lock_"; 53401ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 53501ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 53601ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::thread_list_lock_->IsExclusiveHeld(self)) { 53701ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::thread_list_lock_->TryLock(self); 53801ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::thread_list_lock_->IsExclusiveHeld(self)) { 53901ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers LOG(WARNING) << "Dumping thread list without holding thread_list_lock_"; 54001ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 54101ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 54201ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers std::ostringstream ss; 54301ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Runtime::Current()->GetThreadList()->DumpLocked(ss); 544120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(FATAL) << ss.str(); 54501ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers} 54601ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers 54701ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogersvoid Thread::ModifySuspendCount(Thread* self, int delta, bool for_debugger) { 54800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DCHECK(delta == -1 || delta == +1 || delta == -debug_suspend_count_) 54900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << delta << " " << debug_suspend_count_ << " " << this; 55000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DCHECK_GE(suspend_count_, debug_suspend_count_) << this; 55101ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::thread_suspend_count_lock_->AssertHeld(self); 552cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (this != self && !IsSuspended()) { 553cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers Locks::thread_list_lock_->AssertHeld(self); 554cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers } 55501ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (UNLIKELY(delta < 0 && suspend_count_ <= 0)) { 55601ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers UnsafeLogFatalForSuspendCount(self, this); 55700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return; 55800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 55901ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers 56000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers suspend_count_ += delta; 56100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (for_debugger) { 56200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers debug_suspend_count_ += delta; 56300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 56401ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers 565474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers if (suspend_count_ == 0) { 566474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers AtomicClearFlag(kSuspendRequest); 567474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers } else { 568474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers AtomicSetFlag(kSuspendRequest); 569474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers } 57000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 57100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 572752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartiervoid Thread::RunCheckpointFunction() { 5730aded089f565008ba5908e395e5914ca4f91f2deDave Allison Closure *checkpoints[kMaxCheckpoints]; 5740aded089f565008ba5908e395e5914ca4f91f2deDave Allison 5750aded089f565008ba5908e395e5914ca4f91f2deDave Allison // Grab the suspend_count lock and copy the current set of 5760aded089f565008ba5908e395e5914ca4f91f2deDave Allison // checkpoints. Then clear the list and the flag. The RequestCheckpoint 5770aded089f565008ba5908e395e5914ca4f91f2deDave Allison // function will also grab this lock so we prevent a race between setting 5780aded089f565008ba5908e395e5914ca4f91f2deDave Allison // the kCheckpointRequest flag and clearing it. 5790aded089f565008ba5908e395e5914ca4f91f2deDave Allison { 5800aded089f565008ba5908e395e5914ca4f91f2deDave Allison MutexLock mu(this, *Locks::thread_suspend_count_lock_); 5810aded089f565008ba5908e395e5914ca4f91f2deDave Allison for (uint32_t i = 0; i < kMaxCheckpoints; ++i) { 5820aded089f565008ba5908e395e5914ca4f91f2deDave Allison checkpoints[i] = checkpoint_functions_[i]; 5830aded089f565008ba5908e395e5914ca4f91f2deDave Allison checkpoint_functions_[i] = nullptr; 5840aded089f565008ba5908e395e5914ca4f91f2deDave Allison } 5850aded089f565008ba5908e395e5914ca4f91f2deDave Allison AtomicClearFlag(kCheckpointRequest); 5860aded089f565008ba5908e395e5914ca4f91f2deDave Allison } 5870aded089f565008ba5908e395e5914ca4f91f2deDave Allison 5880aded089f565008ba5908e395e5914ca4f91f2deDave Allison // Outside the lock, run all the checkpoint functions that 5890aded089f565008ba5908e395e5914ca4f91f2deDave Allison // we collected. 5900aded089f565008ba5908e395e5914ca4f91f2deDave Allison bool found_checkpoint = false; 5910aded089f565008ba5908e395e5914ca4f91f2deDave Allison for (uint32_t i = 0; i < kMaxCheckpoints; ++i) { 5920aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (checkpoints[i] != nullptr) { 5930aded089f565008ba5908e395e5914ca4f91f2deDave Allison ATRACE_BEGIN("Checkpoint function"); 5940aded089f565008ba5908e395e5914ca4f91f2deDave Allison checkpoints[i]->Run(this); 5950aded089f565008ba5908e395e5914ca4f91f2deDave Allison ATRACE_END(); 5960aded089f565008ba5908e395e5914ca4f91f2deDave Allison found_checkpoint = true; 5970aded089f565008ba5908e395e5914ca4f91f2deDave Allison } 5980aded089f565008ba5908e395e5914ca4f91f2deDave Allison } 5990aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(found_checkpoint); 600752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier} 601752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier 6020e4627e593bc39f8e3d89c31f8977d55054c07ccMathieu Chartierbool Thread::RequestCheckpoint(Closure* function) { 60359cde534aa295bad7de29472b3cce9576d7996a8Chris Dearman union StateAndFlags old_state_and_flags; 60459cde534aa295bad7de29472b3cce9576d7996a8Chris Dearman old_state_and_flags.as_int = state_and_flags_.as_int; 605d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers if (old_state_and_flags.as_struct.state != kRunnable) { 606d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers return false; // Fail, thread is suspended and so can't run a checkpoint. 607d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers } 6080aded089f565008ba5908e395e5914ca4f91f2deDave Allison 6090aded089f565008ba5908e395e5914ca4f91f2deDave Allison uint32_t available_checkpoint = kMaxCheckpoints; 6100aded089f565008ba5908e395e5914ca4f91f2deDave Allison for (uint32_t i = 0 ; i < kMaxCheckpoints; ++i) { 6110aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (checkpoint_functions_[i] == nullptr) { 6120aded089f565008ba5908e395e5914ca4f91f2deDave Allison available_checkpoint = i; 6130aded089f565008ba5908e395e5914ca4f91f2deDave Allison break; 6140aded089f565008ba5908e395e5914ca4f91f2deDave Allison } 6150aded089f565008ba5908e395e5914ca4f91f2deDave Allison } 6160aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (available_checkpoint == kMaxCheckpoints) { 6170aded089f565008ba5908e395e5914ca4f91f2deDave Allison // No checkpoint functions available, we can't run a checkpoint 6180aded089f565008ba5908e395e5914ca4f91f2deDave Allison return false; 619d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers } 6200aded089f565008ba5908e395e5914ca4f91f2deDave Allison checkpoint_functions_[available_checkpoint] = function; 6210aded089f565008ba5908e395e5914ca4f91f2deDave Allison 622d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers // Checkpoint function installed now install flag bit. 623858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier // We must be runnable to request a checkpoint. 6245f51d4b80058236759fea1d932470a57f348c199Mathieu Chartier DCHECK_EQ(old_state_and_flags.as_struct.state, kRunnable); 62559cde534aa295bad7de29472b3cce9576d7996a8Chris Dearman union StateAndFlags new_state_and_flags; 62659cde534aa295bad7de29472b3cce9576d7996a8Chris Dearman new_state_and_flags.as_int = old_state_and_flags.as_int; 627858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier new_state_and_flags.as_struct.flags |= kCheckpointRequest; 6280aded089f565008ba5908e395e5914ca4f91f2deDave Allison int succeeded = android_atomic_acquire_cas(old_state_and_flags.as_int, new_state_and_flags.as_int, 629858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier &state_and_flags_.as_int); 630d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers if (UNLIKELY(succeeded != 0)) { 631d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers // The thread changed state before the checkpoint was installed. 6320aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK_EQ(checkpoint_functions_[available_checkpoint], function); 6330aded089f565008ba5908e395e5914ca4f91f2deDave Allison checkpoint_functions_[available_checkpoint] = nullptr; 6340aded089f565008ba5908e395e5914ca4f91f2deDave Allison } else { 6350aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK_EQ(ReadFlag(kCheckpointRequest), true); 636d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers } 637858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier return succeeded == 0; 638858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier} 639858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier 64000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::FullSuspendCheck() { 64100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers VLOG(threads) << this << " self-suspending"; 642752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier ATRACE_BEGIN("Full suspend check"); 64300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Make thread appear suspended to other threads, release mutator_lock_. 64400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers TransitionFromRunnableToSuspended(kSuspended); 64500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Transition back to runnable noting requests to suspend, re-acquire share on mutator_lock_. 64600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers TransitionFromSuspendedToRunnable(); 647752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier ATRACE_END(); 64800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers VLOG(threads) << this << " self-reviving"; 64900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 65000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 651abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughesvoid Thread::DumpState(std::ostream& os, const Thread* thread, pid_t tid) { 652d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes std::string group_name; 653d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes int priority; 654d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes bool is_daemon = false; 65581d425b0b232962441616f8b14f73620bffef5e5Ian Rogers Thread* self = Thread::Current(); 656d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 6570aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (self != nullptr && thread != nullptr && thread->opeer_ != nullptr) { 658cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedObjectAccessUnchecked soa(self); 659cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers priority = soa.DecodeField(WellKnownClasses::java_lang_Thread_priority)->GetInt(thread->opeer_); 660cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers is_daemon = soa.DecodeField(WellKnownClasses::java_lang_Thread_daemon)->GetBoolean(thread->opeer_); 661d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 6622dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* thread_group = 663cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers soa.DecodeField(WellKnownClasses::java_lang_Thread_group)->GetObject(thread->opeer_); 664120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 6650aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (thread_group != nullptr) { 666ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtField* group_name_field = 6672dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers soa.DecodeField(WellKnownClasses::java_lang_ThreadGroup_name); 6682dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::String* group_name_string = 6692dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers reinterpret_cast<mirror::String*>(group_name_field->GetObject(thread_group)); 6700aded089f565008ba5908e395e5914ca4f91f2deDave Allison group_name = (group_name_string != nullptr) ? group_name_string->ToModifiedUtf8() : "<null>"; 671d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 672d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } else { 673d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes priority = GetNativePriority(); 674dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes } 675d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 676abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes std::string scheduler_group_name(GetSchedulerGroupName(tid)); 6771bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughes if (scheduler_group_name.empty()) { 6781bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughes scheduler_group_name = "default"; 679d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 680d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 6810aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (thread != nullptr) { 682abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << '"' << *thread->name_ << '"'; 683abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (is_daemon) { 684abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " daemon"; 685abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } 686abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " prio=" << priority 687d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers << " tid=" << thread->GetThreadId() 68880537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes << " " << thread->GetState(); 68980537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes if (thread->IsStillStarting()) { 69080537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes os << " (still starting up)"; 69180537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes } 69280537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes os << "\n"; 693abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } else { 694289be85116aaf7c48413858b5d0448868b4e61f3Elliott Hughes os << '"' << ::art::GetThreadName(tid) << '"' 695abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " prio=" << priority 696abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " (not attached)\n"; 697abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } 698abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes 6990aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (thread != nullptr) { 70081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(self, *Locks::thread_suspend_count_lock_); 701abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " | group=\"" << group_name << "\"" 702abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " sCount=" << thread->suspend_count_ 703abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " dsCount=" << thread->debug_suspend_count_ 704cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers << " obj=" << reinterpret_cast<void*>(thread->opeer_) 705abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " self=" << reinterpret_cast<const void*>(thread) << "\n"; 706d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 7070d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes 708abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " | sysTid=" << tid 709abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " nice=" << getpriority(PRIO_PROCESS, tid) 7100d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes << " cgrp=" << scheduler_group_name; 7110aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (thread != nullptr) { 7120d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes int policy; 7130d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes sched_param sp; 7140d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes CHECK_PTHREAD_CALL(pthread_getschedparam, (thread->pthread_self_, &policy, &sp), __FUNCTION__); 7150d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes os << " sched=" << policy << "/" << sp.sched_priority 7160d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes << " handle=" << reinterpret_cast<void*>(thread->pthread_self_); 7170d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes } 7180d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes os << "\n"; 719d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 720d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes // Grab the scheduler stats for this thread. 721d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes std::string scheduler_stats; 722abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (ReadFileToString(StringPrintf("/proc/self/task/%d/schedstat", tid), &scheduler_stats)) { 7237934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom scheduler_stats.resize(scheduler_stats.size() - 1); // Lose the trailing '\n'. 724d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } else { 725d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes scheduler_stats = "0 0 0"; 726d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 727d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 728ba0b9c55adce3f533845ab1b25c552589e5b4118Elliott Hughes char native_thread_state = '?'; 729d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int utime = 0; 730d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int stime = 0; 731d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int task_cpu = 0; 7322921201dce37ba40c55b89c0deca3c34bf64168eBrian Carlstrom GetTaskStats(tid, &native_thread_state, &utime, &stime, &task_cpu); 733d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 734ba0b9c55adce3f533845ab1b25c552589e5b4118Elliott Hughes os << " | state=" << native_thread_state 735ba0b9c55adce3f533845ab1b25c552589e5b4118Elliott Hughes << " schedstat=( " << scheduler_stats << " )" 736d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes << " utm=" << utime 737d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes << " stm=" << stime 738abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " core=" << task_cpu 739abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " HZ=" << sysconf(_SC_CLK_TCK) << "\n"; 7400aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (thread != nullptr) { 741abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " | stack=" << reinterpret_cast<void*>(thread->stack_begin_) << "-" << reinterpret_cast<void*>(thread->stack_end_) 742abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " stackSize=" << PrettySize(thread->stack_size_) << "\n"; 743abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } 744abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes} 745abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes 746abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughesvoid Thread::DumpState(std::ostream& os) const { 747abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes Thread::DumpState(os, this, GetTid()); 748a09576416788b916095739e43a16917e7948f3a4Elliott Hughes} 749a09576416788b916095739e43a16917e7948f3a4Elliott Hughes 7500399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersstruct StackDumpVisitor : public StackVisitor { 7517a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers StackDumpVisitor(std::ostream& os, Thread* thread, Context* context, bool can_allocate) 752b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 7537a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers : StackVisitor(thread, context), os(os), thread(thread), can_allocate(can_allocate), 7540aded089f565008ba5908e395e5914ca4f91f2deDave Allison last_method(nullptr), last_line_number(0), repetition_count(0), frame_count(0) { 755d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 756d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 757bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers virtual ~StackDumpVisitor() { 758e85d2e924953f1a13b7152edba1c13853e6f3a86Elliott Hughes if (frame_count == 0) { 759e85d2e924953f1a13b7152edba1c13853e6f3a86Elliott Hughes os << " (no managed stack frames)\n"; 760e85d2e924953f1a13b7152edba1c13853e6f3a86Elliott Hughes } 761d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 762d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 763b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 764ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = GetMethod(); 7650399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (m->IsRuntimeMethod()) { 766530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 7679086572fa809d1a19d886b467e4da3ce42016982Ian Rogers } 76828ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers const int kMaxRepetition = 3; 7692dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Class* c = m->GetDeclaringClass(); 770ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers mirror::DexCache* dex_cache = c->GetDexCache(); 771b861dc0077342d5a1d2dd9cade3f6990620778ecIan Rogers int line_number = -1; 7720aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (dex_cache != nullptr) { // be tolerant of bad input 7734445a7e3398a6143939168097a3aa275b734504dIan Rogers const DexFile& dex_file = *dex_cache->GetDexFile(); 7740399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers line_number = dex_file.GetLineNumFromPC(m, GetDexPc()); 775b861dc0077342d5a1d2dd9cade3f6990620778ecIan Rogers } 77628ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (line_number == last_line_number && last_method == m) { 7770aded089f565008ba5908e395e5914ca4f91f2deDave Allison ++repetition_count; 778d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } else { 77928ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (repetition_count >= kMaxRepetition) { 78028ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << " ... repeated " << (repetition_count - kMaxRepetition) << " times\n"; 78128ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 78228ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers repetition_count = 0; 78328ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers last_line_number = line_number; 78428ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers last_method = m; 78528ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 78628ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (repetition_count < kMaxRepetition) { 78728ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << " at " << PrettyMethod(m, false); 78828ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (m->IsNative()) { 78928ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << "(Native method)"; 79028ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } else { 7916d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers mh.ChangeMethod(m); 7926d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers const char* source_file(mh.GetDeclaringClassSourceFile()); 7930aded089f565008ba5908e395e5914ca4f91f2deDave Allison os << "(" << (source_file != nullptr ? source_file : "unavailable") 7942e450bf45e1bacc9c356f6ab239ccfb31bd8d7e4Brian Carlstrom << ":" << line_number << ")"; 79528ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 79628ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << "\n"; 79708fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes if (frame_count == 0) { 79808fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes Monitor::DescribeWait(os, thread); 79908fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes } 80008fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes if (can_allocate) { 8014993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes Monitor::VisitLocks(this, DumpLockedObject, &os); 80208fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes } 803d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 8048e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes 80508fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes ++frame_count; 806530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 807d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 8084993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes 8092dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers static void DumpLockedObject(mirror::Object* o, void* context) 8104993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 8114993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes std::ostream& os = *reinterpret_cast<std::ostream*>(context); 8124993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes os << " - locked <" << o << "> (a " << PrettyTypeOf(o) << ")\n"; 8134993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes } 8144993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes 81508fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes std::ostream& os; 81608fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes const Thread* thread; 8170878d654e7be8c9666579e22522704d8887415ccIan Rogers const bool can_allocate; 8186d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers MethodHelper mh; 819ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* last_method; 82028ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers int last_line_number; 82128ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers int repetition_count; 8228e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes int frame_count; 823d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes}; 824d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 82533e9566255c426e7a2c8fca5b8a1b6a94a5d352cIan Rogersstatic bool ShouldShowNativeStack(const Thread* thread) 82633e9566255c426e7a2c8fca5b8a1b6a94a5d352cIan Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 827aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes ThreadState state = thread->GetState(); 828aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes 829aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // In native code somewhere in the VM (one of the kWaitingFor* states)? That's interesting. 830aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes if (state > kWaiting && state < kStarting) { 831aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes return true; 832aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes } 833aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes 834aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // In an Object.wait variant or Thread.sleep? That's not interesting. 835aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes if (state == kTimedWaiting || state == kSleeping || state == kWaiting) { 836aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes return false; 837aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes } 838aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes 839aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // In some other native method? That's interesting. 840aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // We don't just check kNative because native methods will be in state kSuspended if they're 841aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // calling back into the VM, or kBlocked if they're blocked on a monitor, or one of the 842aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // thread-startup states if it's early enough in their life cycle (http://b/7432159). 8430aded089f565008ba5908e395e5914ca4f91f2deDave Allison mirror::ArtMethod* current_method = thread->GetCurrentMethod(nullptr); 8440aded089f565008ba5908e395e5914ca4f91f2deDave Allison return current_method != nullptr && current_method->IsNative(); 845aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes} 846aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes 847d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughesvoid Thread::DumpStack(std::ostream& os) const { 848ed1790e83352e54420018d1495eb010f7cd48a64Jeff Hao // TODO: we call this code when dying but may not have suspended the thread ourself. The 849ed1790e83352e54420018d1495eb010f7cd48a64Jeff Hao // IsSuspended check is therefore racy with the use for dumping (normally we inhibit 850ed1790e83352e54420018d1495eb010f7cd48a64Jeff Hao // the race with the thread_suspend_count_lock_). 85165530499a0169b3b0b153008e2d187c9f4939541Ian Rogers // No point dumping for an abort in debug builds where we'll hit the not suspended check in stack. 85265530499a0169b3b0b153008e2d187c9f4939541Ian Rogers bool dump_for_abort = (gAborting > 0) && !kIsDebugBuild; 853d090cf4f2420a228251e27dbae600f4f44ae2c57Ian Rogers if (this == Thread::Current() || IsSuspended() || dump_for_abort) { 854f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers // If we're currently in native code, dump that stack before dumping the managed stack. 855d090cf4f2420a228251e27dbae600f4f44ae2c57Ian Rogers if (dump_for_abort || ShouldShowNativeStack(this)) { 856f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers DumpKernelStack(os, GetTid(), " kernel: ", false); 857f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers DumpNativeStack(os, GetTid(), " native: ", false); 858f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers } 859f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers UniquePtr<Context> context(Context::Create()); 860f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers StackDumpVisitor dumper(os, const_cast<Thread*>(this), context.get(), !throwing_OutOfMemoryError_); 861f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers dumper.WalkStack(); 862f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers } else { 863f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers os << "Not able to dump stack of thread that isn't suspended"; 864f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers } 865e27955ca3ca960928d4dbd6cb79711fce06950b3Elliott Hughes} 866e27955ca3ca960928d4dbd6cb79711fce06950b3Elliott Hughes 867be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughesvoid Thread::ThreadExitCallback(void* arg) { 868be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes Thread* self = reinterpret_cast<Thread*>(arg); 8696a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes if (self->thread_exit_check_count_ == 0) { 8706a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes LOG(WARNING) << "Native thread exiting without having called DetachCurrentThread (maybe it's going to use a pthread_key_create destructor?): " << *self; 8710878d654e7be8c9666579e22522704d8887415ccIan Rogers CHECK(is_started_); 8726a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes CHECK_PTHREAD_CALL(pthread_setspecific, (Thread::pthread_key_self_, self), "reattach self"); 8736a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes self->thread_exit_check_count_ = 1; 8746a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes } else { 8756a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes LOG(FATAL) << "Native thread exited without calling DetachCurrentThread: " << *self; 8766a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes } 877b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro} 878b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 879be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughesvoid Thread::Startup() { 8800878d654e7be8c9666579e22522704d8887415ccIan Rogers CHECK(!is_started_); 8810878d654e7be8c9666579e22522704d8887415ccIan Rogers is_started_ = true; 88200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers { 8836d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // MutexLock to keep annotalysis happy. 8846d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // 8850aded089f565008ba5908e395e5914ca4f91f2deDave Allison // Note we use nullptr for the thread because Thread::Current can 8866d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // return garbage since (is_started_ == true) and 8876d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // Thread::pthread_key_self_ is not yet initialized. 8886d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // This was seen on glibc. 8890aded089f565008ba5908e395e5914ca4f91f2deDave Allison MutexLock mu(nullptr, *Locks::thread_suspend_count_lock_); 890c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers resume_cond_ = new ConditionVariable("Thread resumption condition variable", 891c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers *Locks::thread_suspend_count_lock_); 89200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 89300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 894b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro // Allocate a TLS slot. 8958d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes CHECK_PTHREAD_CALL(pthread_key_create, (&Thread::pthread_key_self_, Thread::ThreadExitCallback), "self key"); 896b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 897b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro // Double-check the TLS slot allocation. 8980aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (pthread_getspecific(pthread_key_self_) != nullptr) { 8990aded089f565008ba5908e395e5914ca4f91f2deDave Allison LOG(FATAL) << "Newly-created pthread TLS slot is not nullptr"; 900b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro } 901038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes} 902038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes 903038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughesvoid Thread::FinishStartup() { 904365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Runtime* runtime = Runtime::Current(); 905365c10235438607541fa2259a5fec48061b90bd8Ian Rogers CHECK(runtime->IsStarted()); 906b82b6878fb000d4731063b1bf15c39ff7c50b61fBrian Carlstrom 90701158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Finish attaching the main thread. 90800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(Thread::Current()); 909365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Thread::Current()->CreatePeer("main", false, runtime->GetMainThreadGroup()); 9109a6bae896a2f003d7216603bf29771d105c10ca4Jesse Wilson 911af8d15a3267343dec135cc6df1db740c0a5c7b52Elliott Hughes Runtime::Current()->GetClassLinker()->RunRootClinits(); 912b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro} 913b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 914c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughesvoid Thread::Shutdown() { 9150878d654e7be8c9666579e22522704d8887415ccIan Rogers CHECK(is_started_); 9160878d654e7be8c9666579e22522704d8887415ccIan Rogers is_started_ = false; 9178d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes CHECK_PTHREAD_CALL(pthread_key_delete, (Thread::pthread_key_self_), "self key"); 91833e9566255c426e7a2c8fca5b8a1b6a94a5d352cIan Rogers MutexLock mu(Thread::Current(), *Locks::thread_suspend_count_lock_); 9190aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (resume_cond_ != nullptr) { 9200878d654e7be8c9666579e22522704d8887415ccIan Rogers delete resume_cond_; 9210aded089f565008ba5908e395e5914ca4f91f2deDave Allison resume_cond_ = nullptr; 9220878d654e7be8c9666579e22522704d8887415ccIan Rogers } 923c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes} 924c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes 92552673ffae0025d86f4023735581f19ebcc477487Ian RogersThread::Thread(bool daemon) 9260399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers : suspend_count_(0), 9270aded089f565008ba5908e395e5914ca4f91f2deDave Allison card_table_(nullptr), 9280aded089f565008ba5908e395e5914ca4f91f2deDave Allison exception_(nullptr), 9290aded089f565008ba5908e395e5914ca4f91f2deDave Allison stack_end_(nullptr), 9300399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers managed_stack_(), 9310aded089f565008ba5908e395e5914ca4f91f2deDave Allison jni_env_(nullptr), 9320aded089f565008ba5908e395e5914ca4f91f2deDave Allison self_(nullptr), 9330aded089f565008ba5908e395e5914ca4f91f2deDave Allison opeer_(nullptr), 9340aded089f565008ba5908e395e5914ca4f91f2deDave Allison jpeer_(nullptr), 9350aded089f565008ba5908e395e5914ca4f91f2deDave Allison stack_begin_(nullptr), 9360399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers stack_size_(0), 937d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers thin_lock_thread_id_(0), 9380aded089f565008ba5908e395e5914ca4f91f2deDave Allison stack_trace_sample_(nullptr), 9395ce4b178d2483df679e7f718e379305e5d42a300Jeff Hao trace_clock_base_(0), 9400399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers tid_(0), 941e62934d85fbc2d935afdad57eeade39ecbd7440aElliott Hughes wait_mutex_(new Mutex("a thread wait mutex")), 942c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers wait_cond_(new ConditionVariable("a thread wait condition variable", *wait_mutex_)), 9430aded089f565008ba5908e395e5914ca4f91f2deDave Allison wait_monitor_(nullptr), 9448daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes interrupted_(false), 9450aded089f565008ba5908e395e5914ca4f91f2deDave Allison wait_next_(nullptr), 9460aded089f565008ba5908e395e5914ca4f91f2deDave Allison monitor_enter_object_(nullptr), 9470aded089f565008ba5908e395e5914ca4f91f2deDave Allison top_sirt_(nullptr), 9480aded089f565008ba5908e395e5914ca4f91f2deDave Allison runtime_(nullptr), 9490aded089f565008ba5908e395e5914ca4f91f2deDave Allison class_loader_override_(nullptr), 9500aded089f565008ba5908e395e5914ca4f91f2deDave Allison long_jump_context_(nullptr), 951726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes throwing_OutOfMemoryError_(false), 9520399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers debug_suspend_count_(0), 953e343b76af81a005ef64f5e75a555389fd9147dabjeffhao debug_invoke_req_(new DebugInvokeReq), 95461b7f1b05d1fe12d4009316263bf990903e4edffSebastien Hertz single_step_control_(new SingleStepControl), 9550aded089f565008ba5908e395e5914ca4f91f2deDave Allison deoptimization_shadow_frame_(nullptr), 95662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers instrumentation_stack_(new std::deque<instrumentation::InstrumentationStackFrame>), 9570399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers name_(new std::string(kThreadNameDuringStartup)), 95852673ffae0025d86f4023735581f19ebcc477487Ian Rogers daemon_(daemon), 95900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers pthread_self_(0), 96052673ffae0025d86f4023735581f19ebcc477487Ian Rogers no_thread_suspension_(0), 9610aded089f565008ba5908e395e5914ca4f91f2deDave Allison last_no_thread_suspension_cause_(nullptr), 962692fafd9778141fa6ef0048c9569abd7ee0253bfMathieu Chartier thread_exit_check_count_(0), 963692fafd9778141fa6ef0048c9569abd7ee0253bfMathieu Chartier thread_local_start_(nullptr), 964692fafd9778141fa6ef0048c9569abd7ee0253bfMathieu Chartier thread_local_pos_(nullptr), 965692fafd9778141fa6ef0048c9569abd7ee0253bfMathieu Chartier thread_local_end_(nullptr), 966f5b0e20b5b31f5f5465784adcf2a204dcd69c7fdHiroshi Yamauchi thread_local_objects_(0), 967f5b0e20b5b31f5f5465784adcf2a204dcd69c7fdHiroshi Yamauchi thread_local_alloc_stack_top_(nullptr), 968f5b0e20b5b31f5f5465784adcf2a204dcd69c7fdHiroshi Yamauchi thread_local_alloc_stack_end_(nullptr) { 969f5a7a476e7ea63e094ff0f011dccc170607e6f6bElliott Hughes CHECK_EQ((sizeof(Thread) % 4), 0U) << sizeof(Thread); 97030e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers state_and_flags_.as_struct.flags = 0; 97130e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers state_and_flags_.as_struct.state = kNative; 972ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes memset(&held_mutexes_[0], 0, sizeof(held_mutexes_)); 973cf58d4adf461eb9b8e84baa8019054c88cd8acc6Hiroshi Yamauchi memset(rosalloc_runs_, 0, sizeof(rosalloc_runs_)); 9740aded089f565008ba5908e395e5914ca4f91f2deDave Allison for (uint32_t i = 0; i < kMaxCheckpoints; ++i) { 9750aded089f565008ba5908e395e5914ca4f91f2deDave Allison checkpoint_functions_[i] = nullptr; 9760aded089f565008ba5908e395e5914ca4f91f2deDave Allison } 977dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes} 978dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes 9797dc5166ea740359d381097a7ab382c1dd404055fElliott Hughesbool Thread::IsStillStarting() const { 9807dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // You might think you can check whether the state is kStarting, but for much of thread startup, 98180537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes // the thread is in kNative; it might also be in kVmWait. 9820aded089f565008ba5908e395e5914ca4f91f2deDave Allison // You might think you can check whether the peer is nullptr, but the peer is actually created and 9837dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // assigned fairly early on, and needs to be. 9847dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // It turns out that the last thing to change is the thread name; that's a good proxy for "has 9857dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // this thread _ever_ entered kRunnable". 9860aded089f565008ba5908e395e5914ca4f91f2deDave Allison return (jpeer_ == nullptr && opeer_ == nullptr) || (*name_ == kThreadNameDuringStartup); 9877dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes} 9887dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes 98900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::AssertNoPendingException() const { 99000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (UNLIKELY(IsExceptionPending())) { 99100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(Thread::Current()); 9920aded089f565008ba5908e395e5914ca4f91f2deDave Allison mirror::Throwable* exception = GetException(nullptr); 99300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(FATAL) << "No pending exception expected: " << exception->Dump(); 99400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 99500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 99600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 99783c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartierstatic mirror::Object* MonitorExitVisitor(mirror::Object* object, void* arg, uint32_t /*thread_id*/, 99883c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier RootType /*root_type*/) 999423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier NO_THREAD_SAFETY_ANALYSIS { 100000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Thread* self = reinterpret_cast<Thread*>(arg); 1001423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier mirror::Object* entered_monitor = object; 100200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (self->HoldsLock(entered_monitor)) { 100300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(WARNING) << "Calling MonitorExit on object " 100400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << object << " (" << PrettyTypeOf(object) << ")" 100500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << " left locked by native thread " 100600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << *Thread::Current() << " which is detaching"; 100700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers entered_monitor->MonitorExit(self); 100800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 1009423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier return object; 101002b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes} 101102b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 1012c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughesvoid Thread::Destroy() { 1013120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self = this; 1014120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers DCHECK_EQ(self, Thread::Current()); 101502b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 10160aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (opeer_ != nullptr) { 1017cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedObjectAccess soa(self); 1018120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // We may need to call user-supplied managed code, do this before final clean-up. 1019cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers HandleUncaughtExceptions(soa); 1020cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers RemoveFromThreadGroup(soa); 1021534da072d3db3beecbd74e5aa23d630d73695f2cElliott Hughes 10223c50a4b4ba6d7d9369ee9a0bd6d30bf4c9c79bb0Anwar Ghuloum // this.nativePeer = 0; 1023ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers soa.DecodeField(WellKnownClasses::java_lang_Thread_nativePeer)->SetLong(opeer_, 0); 1024cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers Dbg::PostThreadDeath(self); 102502b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 1026cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers // Thread.join() is implemented as an Object.wait() on the Thread.lock object. Signal anyone 1027cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers // who is waiting. 10282dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* lock = 10292dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers soa.DecodeField(WellKnownClasses::java_lang_Thread_lock)->GetObject(opeer_); 1030038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes // (This conditional is only needed for tests, where Thread.lock won't have been set.) 1031c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier if (lock != nullptr) { 1032c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier SirtRef<mirror::Object> sirt_obj(self, lock); 1033c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier ObjectLock<mirror::Object> locker(self, &sirt_obj); 103405f3057d6a4d23d712092ccd36a531590bff323bIan Rogers locker.Notify(); 10355f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 10365f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 1037120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 1038120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // On thread detach, all monitors entered with JNI MonitorEnter are automatically exited. 10390aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (jni_env_ != nullptr) { 104083c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier jni_env_->monitors.VisitRoots(MonitorExitVisitor, self, 0, kRootVMInternal); 1041120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 1042c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes} 104302b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 1044c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott HughesThread::~Thread() { 10450aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (jni_env_ != nullptr && jpeer_ != nullptr) { 1046dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier // If pthread_create fails we don't have a jni env here. 1047cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers jni_env_->DeleteGlobalRef(jpeer_); 10480aded089f565008ba5908e395e5914ca4f91f2deDave Allison jpeer_ = nullptr; 1049dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier } 10500aded089f565008ba5908e395e5914ca4f91f2deDave Allison opeer_ = nullptr; 1051dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier 10521efa0a9d6cd5f5b40b8a21d39f1103a3610250eeAlexei Zavjalov bool initialized = (jni_env_ != nullptr); // Did Thread::Init run? 10531efa0a9d6cd5f5b40b8a21d39f1103a3610250eeAlexei Zavjalov if (initialized) { 10541efa0a9d6cd5f5b40b8a21d39f1103a3610250eeAlexei Zavjalov delete jni_env_; 10551efa0a9d6cd5f5b40b8a21d39f1103a3610250eeAlexei Zavjalov jni_env_ = nullptr; 10561efa0a9d6cd5f5b40b8a21d39f1103a3610250eeAlexei Zavjalov } 1057dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier CHECK_NE(GetState(), kRunnable); 10580aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK_NE(ReadFlag(kCheckpointRequest), true); 10590aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(checkpoint_functions_[0] == nullptr); 10600aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(checkpoint_functions_[1] == nullptr); 10610aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(checkpoint_functions_[2] == nullptr); 10620aded089f565008ba5908e395e5914ca4f91f2deDave Allison 1063dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier // We may be deleting a still born thread. 1064dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier SetStateUnsafe(kTerminated); 106585d1545e985ac689db4bad7849880e843707c862Elliott Hughes 106685d1545e985ac689db4bad7849880e843707c862Elliott Hughes delete wait_cond_; 106785d1545e985ac689db4bad7849880e843707c862Elliott Hughes delete wait_mutex_; 106885d1545e985ac689db4bad7849880e843707c862Elliott Hughes 10690aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (long_jump_context_ != nullptr) { 1070c928de90ad22ecdf83c18a07008409595f13d3b1Ian Rogers delete long_jump_context_; 1071c928de90ad22ecdf83c18a07008409595f13d3b1Ian Rogers } 1072475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes 10731efa0a9d6cd5f5b40b8a21d39f1103a3610250eeAlexei Zavjalov if (initialized) { 10741efa0a9d6cd5f5b40b8a21d39f1103a3610250eeAlexei Zavjalov CleanupCpu(); 10751efa0a9d6cd5f5b40b8a21d39f1103a3610250eeAlexei Zavjalov } 10761efa0a9d6cd5f5b40b8a21d39f1103a3610250eeAlexei Zavjalov 1077475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes delete debug_invoke_req_; 107861b7f1b05d1fe12d4009316263bf990903e4edffSebastien Hertz delete single_step_control_; 1079725a957985171d712d5c048cc3d00ff14968784bjeffhao delete instrumentation_stack_; 1080899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes delete name_; 10815ce4b178d2483df679e7f718e379305e5d42a300Jeff Hao delete stack_trace_sample_; 1082d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes 1083cf58d4adf461eb9b8e84baa8019054c88cd8acc6Hiroshi Yamauchi Runtime::Current()->GetHeap()->RevokeThreadLocalBuffers(this); 1084cf58d4adf461eb9b8e84baa8019054c88cd8acc6Hiroshi Yamauchi 1085d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes TearDownAlternateSignalStack(); 1086c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes} 1087c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes 1088cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogersvoid Thread::HandleUncaughtExceptions(ScopedObjectAccess& soa) { 1089accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes if (!IsExceptionPending()) { 1090accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes return; 1091accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes } 1092cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedLocalRef<jobject> peer(jni_env_, soa.AddLocalReference<jobject>(opeer_)); 1093cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedThreadStateChange tsc(this, kNative); 1094120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 1095accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Get and clear the exception. 1096120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedLocalRef<jthrowable> exception(jni_env_, jni_env_->ExceptionOccurred()); 1097120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->ExceptionClear(); 1098accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1099accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // If the thread has its own handler, use that. 1100120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedLocalRef<jobject> handler(jni_env_, 1101cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers jni_env_->GetObjectField(peer.get(), 1102120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers WellKnownClasses::java_lang_Thread_uncaughtHandler)); 11030aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (handler.get() == nullptr) { 1104accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Otherwise use the thread group's default handler. 1105cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers handler.reset(jni_env_->GetObjectField(peer.get(), WellKnownClasses::java_lang_Thread_group)); 1106accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes } 1107accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1108accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Call the handler. 1109120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->CallVoidMethod(handler.get(), 1110120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers WellKnownClasses::java_lang_Thread$UncaughtExceptionHandler_uncaughtException, 1111cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers peer.get(), exception.get()); 1112accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1113accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // If the handler threw, clear that exception too. 1114120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->ExceptionClear(); 1115a215526d5c789cbef0f81a1f9aba22541a841ccaElliott Hughes} 1116a215526d5c789cbef0f81a1f9aba22541a841ccaElliott Hughes 1117cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogersvoid Thread::RemoveFromThreadGroup(ScopedObjectAccess& soa) { 11184514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom // this.group.removeThread(this); 11194514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom // group can be null if we're in the compiler or a test. 11202dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* ogroup = soa.DecodeField(WellKnownClasses::java_lang_Thread_group)->GetObject(opeer_); 11210aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (ogroup != nullptr) { 1122cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedLocalRef<jobject> group(soa.Env(), soa.AddLocalReference<jobject>(ogroup)); 1123cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedLocalRef<jobject> peer(soa.Env(), soa.AddLocalReference<jobject>(opeer_)); 1124cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedThreadStateChange tsc(soa.Self(), kNative); 1125120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->CallVoidMethod(group.get(), WellKnownClasses::java_lang_ThreadGroup_removeThread, 1126cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers peer.get()); 11274514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom } 11284514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom} 1129accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1130408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogerssize_t Thread::NumSirtReferences() { 1131a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers size_t count = 0; 113240381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom for (StackIndirectReferenceTable* cur = top_sirt_; cur; cur = cur->GetLink()) { 1133a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers count += cur->NumberOfReferences(); 1134a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers } 1135a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers return count; 1136a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers} 1137a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers 1138cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogersbool Thread::SirtContains(jobject obj) const { 1139ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers StackReference<mirror::Object>* sirt_entry = 1140ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers reinterpret_cast<StackReference<mirror::Object>*>(obj); 114140381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom for (StackIndirectReferenceTable* cur = top_sirt_; cur; cur = cur->GetLink()) { 114240381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom if (cur->Contains(sirt_entry)) { 1143a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers return true; 1144a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers } 1145a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers } 11460399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // JNI code invoked from portable code uses shadow frames rather than the SIRT. 11470399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return managed_stack_.ShadowFramesContain(sirt_entry); 114828f1a147d77ec772db98bed890b50a9ddcff2365TDYa} 114928f1a147d77ec772db98bed890b50a9ddcff2365TDYa 115089bb1449bbef1863b12dfa3813ab7c78be94316fMathieu Chartiervoid Thread::SirtVisitRoots(RootCallback* visitor, void* arg, uint32_t thread_id) { 115140381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom for (StackIndirectReferenceTable* cur = top_sirt_; cur; cur = cur->GetLink()) { 11528dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao size_t num_refs = cur->NumberOfReferences(); 11530aded089f565008ba5908e395e5914ca4f91f2deDave Allison for (size_t j = 0; j < num_refs; ++j) { 11542dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* object = cur->GetReference(j); 1155423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (object != nullptr) { 115689bb1449bbef1863b12dfa3813ab7c78be94316fMathieu Chartier mirror::Object* new_obj = visitor(object, arg, thread_id, kRootNativeStack); 1157423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier DCHECK(new_obj != nullptr); 1158423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (new_obj != object) { 115983c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier cur->SetReference(j, new_obj); 1160423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier } 11615e73f9c8990819054f8e0a60061ee8beff1e024aBrian Carlstrom } 11628dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao } 11638dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao } 11648dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao} 11658dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao 11662dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersmirror::Object* Thread::DecodeJObject(jobject obj) const { 116781d425b0b232962441616f8b14f73620bffef5e5Ian Rogers Locks::mutator_lock_->AssertSharedHeld(this); 11680aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (obj == nullptr) { 11690aded089f565008ba5908e395e5914ca4f91f2deDave Allison return nullptr; 1170408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1171408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers IndirectRef ref = reinterpret_cast<IndirectRef>(obj); 1172408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers IndirectRefKind kind = GetIndirectRefKind(ref); 11732dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* result; 11744f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers // The "kinds" below are sorted by the frequency we expect to encounter them. 11754f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (kind == kLocal) { 11764f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers IndirectReferenceTable& locals = jni_env_->locals; 11774f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers result = const_cast<mirror::Object*>(locals.Get(ref)); 11784f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers } else if (kind == kSirtOrInvalid) { 1179ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers // TODO: make stack indirect reference table lookup more efficient. 1180ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers // Check if this is a local reference in the SIRT. 11814f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (LIKELY(SirtContains(obj))) { 1182ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers // Read from SIRT. 1183ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers result = reinterpret_cast<StackReference<mirror::Object>*>(obj)->AsMirrorPtr(); 1184c2dc62d1c9241dfe880a81698713c314b13aa63fElliott Hughes } else if (Runtime::Current()->GetJavaVM()->work_around_app_jni_bugs) { 1185408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Assume an invalid local reference is actually a direct pointer. 11862dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers result = reinterpret_cast<mirror::Object*>(obj); 1187408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } else { 1188a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes result = kInvalidIndirectRefObject; 1189408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 11904f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers } else if (kind == kGlobal) { 11914f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers JavaVMExt* vm = Runtime::Current()->GetJavaVM(); 11924f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers IndirectReferenceTable& globals = vm->globals; 1193b8a0b94735f188bc739e4c55479c37699006b881Ian Rogers ReaderMutexLock mu(const_cast<Thread*>(this), vm->globals_lock); 11944f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers result = const_cast<mirror::Object*>(globals.Get(ref)); 11954f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers } else { 11964f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers DCHECK_EQ(kind, kWeakGlobal); 1197c11d9b8870de5f860b13c84003ade7b3f3125a52Mathieu Chartier result = Runtime::Current()->GetJavaVM()->DecodeWeakGlobal(const_cast<Thread*>(this), ref); 11984f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (result == kClearedJniWeakGlobal) { 11990aded089f565008ba5908e395e5914ca4f91f2deDave Allison // This is a special case where it's okay to return nullptr. 1200e8c48db6bb507d7fa20c78481c58c23be0045f67Mathieu Chartier return nullptr; 12014f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers } 1202408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1203408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers 12040aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (UNLIKELY(result == nullptr)) { 12050aded089f565008ba5908e395e5914ca4f91f2deDave Allison JniAbortF(nullptr, "use of deleted %s %p", ToStr<IndirectRefKind>(kind).c_str(), obj); 1206a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes } else { 12074f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (kIsDebugBuild && (result != kInvalidIndirectRefObject)) { 1208b3bd5f07884f5a1f2b84224363b1372d7c28d447Elliott Hughes Runtime::Current()->GetHeap()->VerifyObject(result); 1209a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes } 1210408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1211408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers return result; 1212408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers} 1213408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers 121481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers// Implements java.lang.Thread.interrupted. 121581d425b0b232962441616f8b14f73620bffef5e5Ian Rogersbool Thread::Interrupted() { 121650b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers MutexLock mu(Thread::Current(), *wait_mutex_); 121781d425b0b232962441616f8b14f73620bffef5e5Ian Rogers bool interrupted = interrupted_; 121881d425b0b232962441616f8b14f73620bffef5e5Ian Rogers interrupted_ = false; 121981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers return interrupted; 122081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 122181d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 122281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers// Implements java.lang.Thread.isInterrupted. 122381d425b0b232962441616f8b14f73620bffef5e5Ian Rogersbool Thread::IsInterrupted() { 122450b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers MutexLock mu(Thread::Current(), *wait_mutex_); 122581d425b0b232962441616f8b14f73620bffef5e5Ian Rogers return interrupted_; 122681d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 122781d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 122881d425b0b232962441616f8b14f73620bffef5e5Ian Rogersvoid Thread::Interrupt() { 1229c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers Thread* self = Thread::Current(); 1230c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers MutexLock mu(self, *wait_mutex_); 123181d425b0b232962441616f8b14f73620bffef5e5Ian Rogers if (interrupted_) { 123281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers return; 123381d425b0b232962441616f8b14f73620bffef5e5Ian Rogers } 123481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers interrupted_ = true; 1235c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers NotifyLocked(self); 123681d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 123781d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 123881d425b0b232962441616f8b14f73620bffef5e5Ian Rogersvoid Thread::Notify() { 1239c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers Thread* self = Thread::Current(); 1240c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers MutexLock mu(self, *wait_mutex_); 1241c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers NotifyLocked(self); 124281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 124381d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 1244c604d731730b43231f63040c8db1d58304da0cf3Ian Rogersvoid Thread::NotifyLocked(Thread* self) { 12450aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (wait_monitor_ != nullptr) { 1246c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers wait_cond_->Signal(self); 124781d425b0b232962441616f8b14f73620bffef5e5Ian Rogers } 124881d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 124981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 12500399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass CountStackDepthVisitor : public StackVisitor { 12519b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao public: 125293ba893c20532990a430741e0a97212900094e8cBrian Carlstrom explicit CountStackDepthVisitor(Thread* thread) 1253b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 12540aded089f565008ba5908e395e5914ca4f91f2deDave Allison : StackVisitor(thread, nullptr), 125508fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes depth_(0), skip_depth_(0), skipping_(true) {} 1256d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 1257b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 125829f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes // We want to skip frames up to and including the exception's constructor. 12599086572fa809d1a19d886b467e4da3ce42016982Ian Rogers // Note we also skip the frame if it doesn't have a method (namely the callee 12609086572fa809d1a19d886b467e4da3ce42016982Ian Rogers // save frame) 1261ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = GetMethod(); 12620399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (skipping_ && !m->IsRuntimeMethod() && 12632dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers !mirror::Throwable::GetJavaLangThrowable()->IsAssignableFrom(m->GetDeclaringClass())) { 126429f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes skipping_ = false; 126529f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 126629f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes if (!skipping_) { 12670399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (!m->IsRuntimeMethod()) { // Ignore runtime frames (in particular callee save). 12686b0870dfaaa2e69a900ad7ed88e4e1d3697445aaIan Rogers ++depth_; 12696b0870dfaaa2e69a900ad7ed88e4e1d3697445aaIan Rogers } 127029f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } else { 127129f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes ++skip_depth_; 127229f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 1273530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 12749b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 12759b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 12769b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao int GetDepth() const { 1277aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers return depth_; 12789b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 12799b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 128029f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes int GetSkipDepth() const { 128129f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes return skip_depth_; 128229f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 128329f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes 12849b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao private: 1285aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers uint32_t depth_; 128629f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes uint32_t skip_depth_; 128729f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes bool skipping_; 12889b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao}; 12899b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 12900399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass BuildInternalStackTraceVisitor : public StackVisitor { 12919b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao public: 12927a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers explicit BuildInternalStackTraceVisitor(Thread* self, Thread* thread, int skip_depth) 12930aded089f565008ba5908e395e5914ca4f91f2deDave Allison : StackVisitor(thread, nullptr), self_(self), 12940aded089f565008ba5908e395e5914ca4f91f2deDave Allison skip_depth_(skip_depth), count_(0), dex_pc_trace_(nullptr), method_trace_(nullptr) {} 1295283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers 12961f5393447b9f45be7918042d9ee7b521376de866Ian Rogers bool Init(int depth) 1297b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1298aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Allocate method trace with an extra slot that will hold the PC trace 12992dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::ObjectArray<mirror::Object> > 13001f5393447b9f45be7918042d9ee7b521376de866Ian Rogers method_trace(self_, 13012dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers Runtime::Current()->GetClassLinker()->AllocObjectArray<mirror::Object>(self_, 13022dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers depth + 1)); 13030aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (method_trace.get() == nullptr) { 1304283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers return false; 1305726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes } 13062dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::IntArray* dex_pc_trace = mirror::IntArray::Alloc(self_, depth); 13070aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (dex_pc_trace == nullptr) { 1308283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers return false; 1309726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes } 1310aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Save PC trace in last element of method trace, also places it into the 1311aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // object graph. 13120399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers method_trace->Set(depth, dex_pc_trace); 13130399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Set the Object*s and assert that no thread suspension is now possible. 131452673ffae0025d86f4023735581f19ebcc477487Ian Rogers const char* last_no_suspend_cause = 13151f5393447b9f45be7918042d9ee7b521376de866Ian Rogers self_->StartAssertNoThreadSuspension("Building internal stack trace"); 13160aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(last_no_suspend_cause == nullptr) << last_no_suspend_cause; 13170399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers method_trace_ = method_trace.get(); 13180399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers dex_pc_trace_ = dex_pc_trace; 1319283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers return true; 13209b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 13219b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 13220399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers virtual ~BuildInternalStackTraceVisitor() { 13230aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (method_trace_ != nullptr) { 13240aded089f565008ba5908e395e5914ca4f91f2deDave Allison self_->EndAssertNoThreadSuspension(nullptr); 132552673ffae0025d86f4023735581f19ebcc477487Ian Rogers } 13260399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 13279b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 1328b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 13290aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (method_trace_ == nullptr || dex_pc_trace_ == nullptr) { 13307934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom return true; // We're probably trying to fillInStackTrace for an OutOfMemoryError. 1331726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes } 133229f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes if (skip_depth_ > 0) { 133329f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes skip_depth_--; 1334530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 133529f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 1336ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = GetMethod(); 13370399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (m->IsRuntimeMethod()) { 13380399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return true; // Ignore runtime frames (in particular callee save). 13396b0870dfaaa2e69a900ad7ed88e4e1d3697445aaIan Rogers } 13400399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers method_trace_->Set(count_, m); 1341228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao dex_pc_trace_->Set(count_, m->IsProxyMethod() ? DexFile::kDexNoIndex : GetDexPc()); 1342aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers ++count_; 1343530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 13449b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 13459b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 13462dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::Object>* GetInternalStackTrace() const { 13470399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return method_trace_; 13489b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 13499b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 13509b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao private: 13511f5393447b9f45be7918042d9ee7b521376de866Ian Rogers Thread* const self_; 135229f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes // How many more frames to skip. 135329f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes int32_t skip_depth_; 13540399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Current position down stack trace. 1355aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers uint32_t count_; 13560399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Array of dex PC values. 13572dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::IntArray* dex_pc_trace_; 13580399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // An array of the methods on the stack, the last entry is a reference to the PC trace. 13592dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::Object>* method_trace_; 13609b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao}; 13619b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 136264b6d145fa53b8dfb07a8fc2426af13f155d5a4dIan Rogersjobject Thread::CreateInternalStackTrace(const ScopedObjectAccessUnchecked& soa) const { 1363aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Compute depth of stack 13647a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers CountStackDepthVisitor count_visitor(const_cast<Thread*>(this)); 13650399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers count_visitor.WalkStack(); 13669b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao int32_t depth = count_visitor.GetDepth(); 136729f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes int32_t skip_depth = count_visitor.GetSkipDepth(); 13684417536522fd2a9d8215d8672331984769c9520bShih-wei Liao 13691f5393447b9f45be7918042d9ee7b521376de866Ian Rogers // Build internal stack trace. 13707a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers BuildInternalStackTraceVisitor build_trace_visitor(soa.Self(), const_cast<Thread*>(this), 13717a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers skip_depth); 13721f5393447b9f45be7918042d9ee7b521376de866Ian Rogers if (!build_trace_visitor.Init(depth)) { 13730aded089f565008ba5908e395e5914ca4f91f2deDave Allison return nullptr; // Allocation failed. 1374283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers } 13750399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers build_trace_visitor.WalkStack(); 13762dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::Object>* trace = build_trace_visitor.GetInternalStackTrace(); 13777a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers if (kIsDebugBuild) { 13787a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers for (int32_t i = 0; i < trace->GetLength(); ++i) { 13790aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(trace->Get(i) != nullptr); 13807a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers } 13817a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers } 13827a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers return soa.AddLocalReference<jobjectArray>(trace); 1383aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers} 1384aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 138501158d7a57c8321370667a6045220237d16e0da8Elliott HughesjobjectArray Thread::InternalStackTraceToStackTraceElementArray(JNIEnv* env, jobject internal, 138601158d7a57c8321370667a6045220237d16e0da8Elliott Hughes jobjectArray output_array, int* stack_depth) { 1387aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Transition into runnable state to work on Object*/Array* 138800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(env); 1389aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Decode the internal stack trace into the depth, method trace and PC trace 1390530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier int32_t depth = soa.Decode<mirror::ObjectArray<mirror::Object>*>(internal)->GetLength() - 1; 1391aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 1392aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 1393aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 139401158d7a57c8321370667a6045220237d16e0da8Elliott Hughes jobjectArray result; 1395530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier 13960aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (output_array != nullptr) { 139701158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Reuse the array we were given. 139801158d7a57c8321370667a6045220237d16e0da8Elliott Hughes result = output_array; 139901158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // ...adjusting the number of frames we'll write to not exceed the array length. 1400530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier const int32_t traces_length = 1401530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier soa.Decode<mirror::ObjectArray<mirror::StackTraceElement>*>(result)->GetLength(); 1402530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier depth = std::min(depth, traces_length); 140301158d7a57c8321370667a6045220237d16e0da8Elliott Hughes } else { 140401158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Create java_trace array and place in local reference table 1405530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier mirror::ObjectArray<mirror::StackTraceElement>* java_traces = 1406530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier class_linker->AllocStackTraceElementArray(soa.Self(), depth); 14070aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (java_traces == nullptr) { 14080aded089f565008ba5908e395e5914ca4f91f2deDave Allison return nullptr; 140930646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 141000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers result = soa.AddLocalReference<jobjectArray>(java_traces); 141101158d7a57c8321370667a6045220237d16e0da8Elliott Hughes } 141201158d7a57c8321370667a6045220237d16e0da8Elliott Hughes 14130aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (stack_depth != nullptr) { 141401158d7a57c8321370667a6045220237d16e0da8Elliott Hughes *stack_depth = depth; 141501158d7a57c8321370667a6045220237d16e0da8Elliott Hughes } 141655df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao 14179b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao for (int32_t i = 0; i < depth; ++i) { 1418530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier mirror::ObjectArray<mirror::Object>* method_trace = 1419530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier soa.Decode<mirror::ObjectArray<mirror::Object>*>(internal); 1420aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Prepare parameters for StackTraceElement(String cls, String method, String file, int line) 1421ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* method = down_cast<mirror::ArtMethod*>(method_trace->Get(i)); 1422590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier MethodHelper mh(method); 1423228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao int32_t line_number; 14247c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom SirtRef<mirror::String> class_name_object(soa.Self(), nullptr); 14257c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom SirtRef<mirror::String> source_name_object(soa.Self(), nullptr); 1426228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao if (method->IsProxyMethod()) { 1427228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao line_number = -1; 1428228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao class_name_object.reset(method->GetDeclaringClass()->GetName()); 1429228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao // source_name_object intentionally left null for proxy methods 1430228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao } else { 1431228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao mirror::IntArray* pc_trace = down_cast<mirror::IntArray*>(method_trace->Get(depth)); 1432228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao uint32_t dex_pc = pc_trace->Get(i); 1433228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao line_number = mh.GetLineNumFromDexPC(dex_pc); 1434228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao // Allocate element, potentially triggering GC 1435228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao // TODO: reuse class_name_object via Class::name_? 1436228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao const char* descriptor = mh.GetDeclaringClassDescriptor(); 14377c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom CHECK(descriptor != nullptr); 1438228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao std::string class_name(PrettyDescriptor(descriptor)); 1439228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao class_name_object.reset(mirror::String::AllocFromModifiedUtf8(soa.Self(), class_name.c_str())); 14407c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom if (class_name_object.get() == nullptr) { 14417c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom return nullptr; 1442228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao } 1443228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao const char* source_file = mh.GetDeclaringClassSourceFile(); 14447c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom if (source_file != nullptr) { 14457c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom source_name_object.reset(mirror::String::AllocFromModifiedUtf8(soa.Self(), source_file)); 14467c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom if (source_name_object.get() == nullptr) { 14477c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom return nullptr; 14487c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom } 1449228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao } 145040381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom } 1451486013193c94b4321414c28ce9251911e14a0599Ian Rogers const char* method_name = mh.GetName(); 14520aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(method_name != nullptr); 14532dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::String> method_name_object(soa.Self(), 14542dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::String::AllocFromModifiedUtf8(soa.Self(), 14552dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers method_name)); 14560aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (method_name_object.get() == nullptr) { 14570aded089f565008ba5908e395e5914ca4f91f2deDave Allison return nullptr; 14586d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers } 1459590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier mirror::StackTraceElement* obj = mirror::StackTraceElement::Alloc( 1460590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier soa.Self(), class_name_object, method_name_object, source_name_object, line_number); 14610aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (obj == nullptr) { 14620aded089f565008ba5908e395e5914ca4f91f2deDave Allison return nullptr; 146330646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 1464530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier soa.Decode<mirror::ObjectArray<mirror::StackTraceElement>*>(result)->Set(i, obj); 146555df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao } 1466aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers return result; 146755df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao} 146855df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao 146962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::ThrowNewExceptionF(const ThrowLocation& throw_location, 147062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* exception_class_descriptor, const char* fmt, ...) { 1471a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes va_list args; 1472a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes va_start(args, fmt); 147362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNewExceptionV(throw_location, exception_class_descriptor, 147462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers fmt, args); 1475a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes va_end(args); 14764a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes} 14774a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes 147862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::ThrowNewExceptionV(const ThrowLocation& throw_location, 147962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* exception_class_descriptor, 148062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* fmt, va_list ap) { 14814a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes std::string msg; 14824a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes StringAppendV(&msg, fmt, ap); 148362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNewException(throw_location, exception_class_descriptor, msg.c_str()); 14845cb5ad27944efb08d4556b3c0d362302e37e832bElliott Hughes} 148537f7a40f6789bb287f287a9af00777af9d6428eeElliott Hughes 148662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::ThrowNewException(const ThrowLocation& throw_location, const char* exception_class_descriptor, 148762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* msg) { 14887934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom AssertNoPendingException(); // Callers should either clear or call ThrowNewWrappedException. 148962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNewWrappedException(throw_location, exception_class_descriptor, msg); 149062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers} 149162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 149262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::ThrowNewWrappedException(const ThrowLocation& throw_location, 149362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* exception_class_descriptor, 149462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* msg) { 149562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK_EQ(this, Thread::Current()); 149662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Ensure we don't forget arguments over object allocation. 149762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::Object> saved_throw_this(this, throw_location.GetThis()); 1498ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom SirtRef<mirror::ArtMethod> saved_throw_method(this, throw_location.GetMethod()); 149962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Ignore the cause throw location. TODO: should we report this as a re-throw? 15000aded089f565008ba5908e395e5914ca4f91f2deDave Allison SirtRef<mirror::Throwable> cause(this, GetException(nullptr)); 150162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ClearException(); 150262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers Runtime* runtime = Runtime::Current(); 1503a4f94740f9d66b21f4bcd3a225c434aa29cfa323Elliott Hughes 1504c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier mirror::ClassLoader* cl = nullptr; 1505c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier if (saved_throw_method.get() != nullptr) { 1506c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier cl = saved_throw_method.get()->GetDeclaringClass()->GetClassLoader(); 150762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 1508590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier SirtRef<mirror::ClassLoader> class_loader(this, cl); 150962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::Class> 1510590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier exception_class(this, runtime->GetClassLinker()->FindClass(exception_class_descriptor, 1511590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier class_loader)); 15120aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (UNLIKELY(exception_class.get() == nullptr)) { 151330646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes CHECK(IsExceptionPending()); 151462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers LOG(ERROR) << "No exception class " << PrettyDescriptor(exception_class_descriptor); 151530646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes return; 151630646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 151762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 1518c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier if (UNLIKELY(!runtime->GetClassLinker()->EnsureInitialized(exception_class, true, true))) { 151962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK(IsExceptionPending()); 152062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return; 152162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 152262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK(!runtime->IsStarted() || exception_class->IsThrowableClass()); 152362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::Throwable> exception(this, 152462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers down_cast<mirror::Throwable*>(exception_class->AllocObject(this))); 152562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 1526590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier // If we couldn't allocate the exception, throw the pre-allocated out of memory exception. 1527590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier if (exception.get() == nullptr) { 1528c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier ThrowLocation gc_safe_throw_location(saved_throw_this.get(), saved_throw_method.get(), 1529c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier throw_location.GetDexPc()); 1530c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier SetException(gc_safe_throw_location, Runtime::Current()->GetPreAllocatedOutOfMemoryError()); 1531590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier return; 1532590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier } 1533590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier 153462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Choose an appropriate constructor and set up the arguments. 153562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* signature; 15360177e53ea521ad58b70c305700dab32f1ac773b7Ian Rogers const char* shorty; 15370aded089f565008ba5908e395e5914ca4f91f2deDave Allison SirtRef<mirror::String> msg_string(this, nullptr); 15380aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (msg != nullptr) { 153962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Ensure we remember this and the method over the String allocation. 154062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers msg_string.reset(mirror::String::AllocFromModifiedUtf8(this, msg)); 15410aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (UNLIKELY(msg_string.get() == nullptr)) { 154262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CHECK(IsExceptionPending()); // OOME. 154362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return; 154462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 15450aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (cause.get() == nullptr) { 15460177e53ea521ad58b70c305700dab32f1ac773b7Ian Rogers shorty = "VL"; 154762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers signature = "(Ljava/lang/String;)V"; 1548ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom } else { 15490177e53ea521ad58b70c305700dab32f1ac773b7Ian Rogers shorty = "VLL"; 155062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers signature = "(Ljava/lang/String;Ljava/lang/Throwable;)V"; 155162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 155262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 15530aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (cause.get() == nullptr) { 15540177e53ea521ad58b70c305700dab32f1ac773b7Ian Rogers shorty = "V"; 155562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers signature = "()V"; 155662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 15570177e53ea521ad58b70c305700dab32f1ac773b7Ian Rogers shorty = "VL"; 155862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers signature = "(Ljava/lang/Throwable;)V"; 1559ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom } 1560ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom } 1561ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* exception_init_method = 156262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception_class->FindDeclaredDirectMethod("<init>", signature); 156362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 15640aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(exception_init_method != nullptr) << "No <init>" << signature << " in " 156562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers << PrettyDescriptor(exception_class_descriptor); 156662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 156762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (UNLIKELY(!runtime->IsStarted())) { 156862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Something is trying to throw an exception without a started runtime, which is the common 156962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // case in the compiler. We won't be able to invoke the constructor of the exception, so set 157062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // the exception fields directly. 15710aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (msg != nullptr) { 157262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception->SetDetailMessage(msg_string.get()); 157362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 15740aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (cause.get() != nullptr) { 157562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception->SetCause(cause.get()); 157662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 157762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation gc_safe_throw_location(saved_throw_this.get(), saved_throw_method.get(), 157862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers throw_location.GetDexPc()); 157962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SetException(gc_safe_throw_location, exception.get()); 158062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 15810177e53ea521ad58b70c305700dab32f1ac773b7Ian Rogers ArgArray args(shorty, strlen(shorty)); 1582ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers args.Append(exception.get()); 15830aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (msg != nullptr) { 1584ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers args.Append(msg_string.get()); 158562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 15860aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (cause.get() != nullptr) { 1587ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers args.Append(cause.get()); 158862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 158962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers JValue result; 15900177e53ea521ad58b70c305700dab32f1ac773b7Ian Rogers exception_init_method->Invoke(this, args.GetArray(), args.GetNumBytes(), &result, shorty); 159162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (LIKELY(!IsExceptionPending())) { 159262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation gc_safe_throw_location(saved_throw_this.get(), saved_throw_method.get(), 159362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers throw_location.GetDexPc()); 159462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SetException(gc_safe_throw_location, exception.get()); 159562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 159630646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 1597a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes} 1598a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes 15992ced6a534157d5d963693346904389c19775d2daElliott Hughesvoid Thread::ThrowOutOfMemoryError(const char* msg) { 16002ced6a534157d5d963693346904389c19775d2daElliott Hughes LOG(ERROR) << StringPrintf("Throwing OutOfMemoryError \"%s\"%s", 16012ced6a534157d5d963693346904389c19775d2daElliott Hughes msg, (throwing_OutOfMemoryError_ ? " (recursive case)" : "")); 160262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation throw_location = GetCurrentLocationForThrow(); 1603726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes if (!throwing_OutOfMemoryError_) { 1604726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes throwing_OutOfMemoryError_ = true; 160562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNewException(throw_location, "Ljava/lang/OutOfMemoryError;", msg); 160633e15bcb4c0873cbce9d039fbc9bc7f4cf257765Ian Rogers throwing_OutOfMemoryError_ = false; 1607418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes } else { 16087934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom Dump(LOG(ERROR)); // The pre-allocated OOME has no stack, so help out and log one. 160962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SetException(throw_location, Runtime::Current()->GetPreAllocatedOutOfMemoryError()); 1610418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes } 161179082e367845bbd68ec44ef2ddd1be8ef0e1550fElliott Hughes} 161279082e367845bbd68ec44ef2ddd1be8ef0e1550fElliott Hughes 1613498508c1187dc07d3eae5476784cde20f5224d93Elliott HughesThread* Thread::CurrentFromGdb() { 1614accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes return Thread::Current(); 1615accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes} 1616accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1617accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughesvoid Thread::DumpFromGdb() const { 16186b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom std::ostringstream ss; 16196b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom Dump(ss); 1620955724179c6c739524f610023287f56b24dc31deElliott Hughes std::string str(ss.str()); 16216b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom // log to stderr for debugging command line processes 16226b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom std::cerr << str; 16236b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom#ifdef HAVE_ANDROID_OS 16246b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom // log to logcat for debugging frameworks processes 16256b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom LOG(INFO) << str; 16266b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom#endif 1627accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes} 1628accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 162998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughesstruct EntryPointInfo { 163098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes uint32_t offset; 163198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes const char* name; 163298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes}; 1633848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers#define INTERPRETER_ENTRY_POINT_INFO(x) { INTERPRETER_ENTRYPOINT_OFFSET(x).Uint32Value(), #x } 1634848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers#define JNI_ENTRY_POINT_INFO(x) { JNI_ENTRYPOINT_OFFSET(x).Uint32Value(), #x } 1635848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers#define PORTABLE_ENTRY_POINT_INFO(x) { PORTABLE_ENTRYPOINT_OFFSET(x).Uint32Value(), #x } 1636848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers#define QUICK_ENTRY_POINT_INFO(x) { QUICK_ENTRYPOINT_OFFSET(x).Uint32Value(), #x } 163798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughesstatic const EntryPointInfo gThreadEntryPointInfo[] = { 1638848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers INTERPRETER_ENTRY_POINT_INFO(pInterpreterToInterpreterBridge), 1639848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers INTERPRETER_ENTRY_POINT_INFO(pInterpreterToCompiledCodeBridge), 1640848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers JNI_ENTRY_POINT_INFO(pDlsymLookup), 164188474b416eb257078e590bf9bc7957cee604a186Jeff Hao PORTABLE_ENTRY_POINT_INFO(pPortableImtConflictTrampoline), 1642848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers PORTABLE_ENTRY_POINT_INFO(pPortableResolutionTrampoline), 1643848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers PORTABLE_ENTRY_POINT_INFO(pPortableToInterpreterBridge), 1644848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pAllocArray), 1645bb8f0ab736b61db8f543e433859272e83f96ee9bHiroshi Yamauchi QUICK_ENTRY_POINT_INFO(pAllocArrayResolved), 1646848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pAllocArrayWithAccessCheck), 1647848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pAllocObject), 1648be1ca55db3362f5b100c4c65da5342fd299520bbHiroshi Yamauchi QUICK_ENTRY_POINT_INFO(pAllocObjectResolved), 1649be1ca55db3362f5b100c4c65da5342fd299520bbHiroshi Yamauchi QUICK_ENTRY_POINT_INFO(pAllocObjectInitialized), 1650848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pAllocObjectWithAccessCheck), 1651848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pCheckAndAllocArray), 1652848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pCheckAndAllocArrayWithAccessCheck), 1653848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pInstanceofNonTrivial), 1654848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pCheckCast), 16557655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pInitializeStaticStorage), 1656848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pInitializeTypeAndVerifyAccess), 1657848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pInitializeType), 1658848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pResolveString), 16597655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pSet32Instance), 16607655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pSet32Static), 16617655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pSet64Instance), 16627655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pSet64Static), 16637655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pSetObjInstance), 16647655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pSetObjStatic), 16657655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pGet32Instance), 16667655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pGet32Static), 16677655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pGet64Instance), 16687655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pGet64Static), 16697655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pGetObjInstance), 16707655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pGetObjStatic), 1671a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers QUICK_ENTRY_POINT_INFO(pAputObjectWithNullAndBoundCheck), 1672a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers QUICK_ENTRY_POINT_INFO(pAputObjectWithBoundCheck), 1673a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers QUICK_ENTRY_POINT_INFO(pAputObject), 1674848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pHandleFillArrayData), 16757655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodStart), 16767655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodStartSynchronized), 16777655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodEnd), 16787655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodEndSynchronized), 16797655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodEndWithReference), 16807655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodEndWithReferenceSynchronized), 1681848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pLockObject), 1682848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pUnlockObject), 16837655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pCmpgDouble), 16847655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pCmpgFloat), 16857655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pCmplDouble), 16867655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pCmplFloat), 16877655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pFmod), 16887655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pSqrt), 16897655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pL2d), 16907655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pFmodf), 16917655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pL2f), 16927655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pD2iz), 16937655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pF2iz), 16947655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pIdivmod), 16957655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pD2l), 16967655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pF2l), 16977655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pLdiv), 1698a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers QUICK_ENTRY_POINT_INFO(pLmod), 16997655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pLmul), 17007655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pShlLong), 17017655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pShrLong), 17027655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pUshrLong), 17037655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pIndexOf), 17047655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pMemcmp16), 17057655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pStringCompareTo), 17067655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pMemcpy), 170788474b416eb257078e590bf9bc7957cee604a186Jeff Hao QUICK_ENTRY_POINT_INFO(pQuickImtConflictTrampoline), 1708848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pQuickResolutionTrampoline), 1709848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pQuickToInterpreterBridge), 17107655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pInvokeDirectTrampolineWithAccessCheck), 17117655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pInvokeInterfaceTrampolineWithAccessCheck), 17127655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pInvokeStaticTrampolineWithAccessCheck), 17137655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pInvokeSuperTrampolineWithAccessCheck), 17147655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pInvokeVirtualTrampolineWithAccessCheck), 1715848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pCheckSuspend), 1716848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pTestSuspend), 17177655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pDeliverException), 1718848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pThrowArrayBounds), 1719848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pThrowDivZero), 1720848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pThrowNoSuchMethod), 1721848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pThrowNullPointer), 1722848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pThrowStackOverflow), 172398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes}; 17247655f29fabc0a12765de828914a18314382e5a35Ian Rogers#undef QUICK_ENTRY_POINT_INFO 172598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes 172628fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughesvoid Thread::DumpThreadOffset(std::ostream& os, uint32_t offset, size_t size_of_pointers) { 17277934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom CHECK_EQ(size_of_pointers, 4U); // TODO: support 64-bit targets. 172898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes 1729f69863b3039fc621ff4250e262d2a024d5e79ec8Brian Carlstrom#define DO_THREAD_OFFSET(x) \ 1730f69863b3039fc621ff4250e262d2a024d5e79ec8Brian Carlstrom if (offset == static_cast<uint32_t>(OFFSETOF_VOLATILE_MEMBER(Thread, x))) { \ 1731f69863b3039fc621ff4250e262d2a024d5e79ec8Brian Carlstrom os << # x; \ 1732f69863b3039fc621ff4250e262d2a024d5e79ec8Brian Carlstrom return; \ 1733f69863b3039fc621ff4250e262d2a024d5e79ec8Brian Carlstrom } 1734474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers DO_THREAD_OFFSET(state_and_flags_); 173598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(card_table_); 173698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(exception_); 173707ec8e17c978e3bda0202693e6432b56349a5867Ian Rogers DO_THREAD_OFFSET(opeer_); 173898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(jni_env_); 173998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(self_); 174098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(stack_end_); 174198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(suspend_count_); 1742d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers DO_THREAD_OFFSET(thin_lock_thread_id_); 17437934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom // DO_THREAD_OFFSET(top_of_managed_stack_); 17447934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom // DO_THREAD_OFFSET(top_of_managed_stack_pc_); 174598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(top_sirt_); 174628fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes#undef DO_THREAD_OFFSET 174798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes 174898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes size_t entry_point_count = arraysize(gThreadEntryPointInfo); 17497655f29fabc0a12765de828914a18314382e5a35Ian Rogers CHECK_EQ(entry_point_count * size_of_pointers, 1750848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers sizeof(InterpreterEntryPoints) + sizeof(JniEntryPoints) + sizeof(PortableEntryPoints) + 1751848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers sizeof(QuickEntryPoints)); 1752848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers uint32_t expected_offset = OFFSETOF_MEMBER(Thread, interpreter_entrypoints_); 175398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes for (size_t i = 0; i < entry_point_count; ++i) { 1754474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers CHECK_EQ(gThreadEntryPointInfo[i].offset, expected_offset) << gThreadEntryPointInfo[i].name; 175598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes expected_offset += size_of_pointers; 175698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes if (gThreadEntryPointInfo[i].offset == offset) { 175798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes os << gThreadEntryPointInfo[i].name; 175898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes return; 175998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes } 176098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes } 176198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes os << offset; 176228fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes} 176328fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes 176494d6df471a406a03bb1afba8ca3ae9c0fbf366b5jeffhaovoid Thread::QuickDeliverException() { 176562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Get exception from thread. 176662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation throw_location; 176762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Throwable* exception = GetException(&throw_location); 17680aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(exception != nullptr); 176928ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers // Don't leave exception visible while we try to find the handler, which may cause class 1770d07986fad0d08cdf05505cf9230714a2cf0dd9aeElliott Hughes // resolution. 177128ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers ClearException(); 177262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers bool is_deoptimization = (exception == reinterpret_cast<mirror::Throwable*>(-1)); 177328ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (kDebugExceptionDelivery) { 177462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (!is_deoptimization) { 177562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::String* msg = exception->GetDetailMessage(); 17760aded089f565008ba5908e395e5914ca4f91f2deDave Allison std::string str_msg(msg != nullptr ? msg->ToModifiedUtf8() : ""); 177762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DumpStack(LOG(INFO) << "Delivering exception: " << PrettyTypeOf(exception) 177862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers << ": " << str_msg << "\n"); 177962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 178062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DumpStack(LOG(INFO) << "Deoptimizing: "); 178162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 178228ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 1783d45a1f5d1dd5bc9badfab3a8aee90c934d9f2227Sebastien Hertz CatchFinder catch_finder(this, throw_location, exception, is_deoptimization); 1784d45a1f5d1dd5bc9badfab3a8aee90c934d9f2227Sebastien Hertz catch_finder.FindCatch(); 1785d45a1f5d1dd5bc9badfab3a8aee90c934d9f2227Sebastien Hertz catch_finder.UpdateInstrumentationStack(); 17860399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers catch_finder.DoLongJump(); 17879a8a8889418e09bf2d4ae3f683fbb40a71c3c8f4Ian Rogers LOG(FATAL) << "UNREACHABLE"; 1788bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers} 1789bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 1790bdb0391258abc54bf77c676e36847d28a783bfe5Ian RogersContext* Thread::GetLongJumpContext() { 179185d1545e985ac689db4bad7849880e843707c862Elliott Hughes Context* result = long_jump_context_; 17920aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (result == nullptr) { 1793bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers result = Context::Create(); 17940399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } else { 17950aded089f565008ba5908e395e5914ca4f91f2deDave Allison long_jump_context_ = nullptr; // Avoid context being shared. 17966702243ea2332b566d8e8b871cc9db0906d835adMathieu Chartier result->Reset(); 17971a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 1798bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers return result; 17991a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao} 18001a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 180162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersstruct CurrentMethodVisitor : public StackVisitor { 180262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CurrentMethodVisitor(Thread* thread, Context* context) 180362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 18040aded089f565008ba5908e395e5914ca4f91f2deDave Allison : StackVisitor(thread, context), this_object_(nullptr), method_(nullptr), dex_pc_(0) {} 180562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers virtual bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1806ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = GetMethod(); 180762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (m->IsRuntimeMethod()) { 180862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Continue if this is a runtime method. 180962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return true; 181062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 18110aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (context_ != nullptr) { 181262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers this_object_ = GetThisObject(); 18130399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 181462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers method_ = m; 181562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers dex_pc_ = GetDexPc(); 181662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return false; 181762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 181862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Object* this_object_; 1819ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* method_; 182062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers uint32_t dex_pc_; 182162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers}; 18220399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 1823ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrommirror::ArtMethod* Thread::GetCurrentMethod(uint32_t* dex_pc) const { 18240aded089f565008ba5908e395e5914ca4f91f2deDave Allison CurrentMethodVisitor visitor(const_cast<Thread*>(this), nullptr); 18250399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers visitor.WalkStack(false); 18260aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (dex_pc != nullptr) { 18270399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers *dex_pc = visitor.dex_pc_; 1828d07986fad0d08cdf05505cf9230714a2cf0dd9aeElliott Hughes } 18290399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return visitor.method_; 1830ee0d3fb2fbd736484fe8c3177a4e965ea86d1c65TDYa} 183133dc7717cd16592bcc825350bea6305be9eb2ea1jeffhao 183262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian RogersThrowLocation Thread::GetCurrentLocationForThrow() { 183362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers Context* context = GetLongJumpContext(); 183462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CurrentMethodVisitor visitor(this, context); 183562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers visitor.WalkStack(false); 183662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ReleaseLongJumpContext(context); 183762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return ThrowLocation(visitor.this_object_, visitor.method_, visitor.dex_pc_); 183862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers} 183962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 18402dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersbool Thread::HoldsLock(mirror::Object* object) { 18410aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (object == nullptr) { 18425f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes return false; 18435f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 1844d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers return object->GetLockOwnerThreadId() == thin_lock_thread_id_; 18455f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes} 18465f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes 184740e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogers// RootVisitor parameters are: (const Object* obj, size_t vreg, const StackVisitor* visitor). 184840e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogerstemplate <typename RootVisitor> 18490399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass ReferenceMapVisitor : public StackVisitor { 1850d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers public: 18517a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers ReferenceMapVisitor(Thread* thread, Context* context, const RootVisitor& visitor) 1852b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 18537a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers : StackVisitor(thread, context), visitor_(visitor) {} 1854d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 1855b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 18566a4be3a6226cec645cf905dd352e44f7968a7fa4Brian Carlstrom if (false) { 18570399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers LOG(INFO) << "Visiting stack roots in " << PrettyMethod(GetMethod()) 18580399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers << StringPrintf("@ PC:%04x", GetDexPc()); 18596a4be3a6226cec645cf905dd352e44f7968a7fa4Brian Carlstrom } 18600399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ShadowFrame* shadow_frame = GetCurrentShadowFrame(); 18610aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (shadow_frame != nullptr) { 1862ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = shadow_frame->GetMethod(); 1863ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa size_t num_regs = shadow_frame->NumberOfVRegs(); 1864ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa if (m->IsNative() || shadow_frame->HasReferenceArray()) { 1865ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa // SIRT for JNI or References for interpreter. 1866ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa for (size_t reg = 0; reg < num_regs; ++reg) { 18672dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* ref = shadow_frame->GetVRegReference(reg); 1868423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (ref != nullptr) { 1869423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier mirror::Object* new_ref = visitor_(ref, reg, this); 1870423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (new_ref != ref) { 1871423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier shadow_frame->SetVRegReference(reg, new_ref); 1872423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier } 1873ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 1874ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 1875ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } else { 1876ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa // Java method. 1877ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa // Portable path use DexGcMap and store in Method.native_gc_map_. 1878ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa const uint8_t* gc_map = m->GetNativeGcMap(); 18797c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom CHECK(gc_map != nullptr) << PrettyMethod(m); 18808171fc34bf74ed0df02385787d916bc13eb7f160Vladimir Marko verifier::DexPcToReferenceMap dex_gc_map(gc_map); 1881ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa uint32_t dex_pc = GetDexPc(); 1882ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa const uint8_t* reg_bitmap = dex_gc_map.FindBitMap(dex_pc); 18830aded089f565008ba5908e395e5914ca4f91f2deDave Allison DCHECK(reg_bitmap != nullptr); 1884ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa num_regs = std::min(dex_gc_map.RegWidth() * 8, num_regs); 1885ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa for (size_t reg = 0; reg < num_regs; ++reg) { 1886ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa if (TestBitmap(reg, reg_bitmap)) { 18872dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* ref = shadow_frame->GetVRegReference(reg); 1888423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (ref != nullptr) { 1889423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier mirror::Object* new_ref = visitor_(ref, reg, this); 1890423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (new_ref != ref) { 1891423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier shadow_frame->SetVRegReference(reg, new_ref); 1892423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier } 1893ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 1894ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 1895ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 1896ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 18970399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } else { 1898ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = GetMethod(); 18990399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Process register map (which native and runtime methods don't have) 1900640495bd1aebcd0b429d59f62b57d0c984b2d8c6Ian Rogers if (!m->IsNative() && !m->IsRuntimeMethod() && !m->IsProxyMethod()) { 19010c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const uint8_t* native_gc_map = m->GetNativeGcMap(); 19020aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(native_gc_map != nullptr) << PrettyMethod(m); 19030c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers mh_.ChangeMethod(m); 19040c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const DexFile::CodeItem* code_item = mh_.GetCodeItem(); 19050aded089f565008ba5908e395e5914ca4f91f2deDave Allison DCHECK(code_item != nullptr) << PrettyMethod(m); // Can't be nullptr or how would we compile its instructions? 19060c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers NativePcOffsetToReferenceMap map(native_gc_map); 19070399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers size_t num_regs = std::min(map.RegWidth() * 8, 19080399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers static_cast<size_t>(code_item->registers_size_)); 19090c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers if (num_regs > 0) { 19100c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const uint8_t* reg_bitmap = map.FindBitMap(GetNativePcOffset()); 19110aded089f565008ba5908e395e5914ca4f91f2deDave Allison DCHECK(reg_bitmap != nullptr); 19121809a72a66d245ae598582d658b93a24ac3bf01eIan Rogers const VmapTable vmap_table(m->GetVmapTable()); 19130c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t core_spills = m->GetCoreSpillMask(); 19140c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t fp_spills = m->GetFpSpillMask(); 19150c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers size_t frame_size = m->GetFrameSizeInBytes(); 19160c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // For all dex registers in the bitmap 1917ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod** cur_quick_frame = GetCurrentQuickFrame(); 19180aded089f565008ba5908e395e5914ca4f91f2deDave Allison DCHECK(cur_quick_frame != nullptr); 19190c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers for (size_t reg = 0; reg < num_regs; ++reg) { 19200c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // Does this register hold a reference? 19210c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers if (TestBitmap(reg, reg_bitmap)) { 19220c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t vmap_offset; 19231809a72a66d245ae598582d658b93a24ac3bf01eIan Rogers if (vmap_table.IsInContext(reg, kReferenceVReg, &vmap_offset)) { 1924423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier int vmap_reg = vmap_table.ComputeRegister(core_spills, vmap_offset, kReferenceVReg); 1925423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier mirror::Object* ref = reinterpret_cast<mirror::Object*>(GetGPR(vmap_reg)); 1926423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (ref != nullptr) { 1927423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier mirror::Object* new_ref = visitor_(ref, reg, this); 1928423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (ref != new_ref) { 1929423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier SetGPR(vmap_reg, reinterpret_cast<uintptr_t>(new_ref)); 1930423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier } 1931423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier } 19320c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers } else { 1933ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers uintptr_t* reg_addr = reinterpret_cast<uintptr_t*>( 1934ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers GetVRegAddr(cur_quick_frame, code_item, core_spills, fp_spills, frame_size, reg)); 1935423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier mirror::Object* ref = reinterpret_cast<mirror::Object*>(*reg_addr); 1936423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (ref != nullptr) { 1937423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier mirror::Object* new_ref = visitor_(ref, reg, this); 1938423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (ref != new_ref) { 1939ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers *reg_addr = reinterpret_cast<uintptr_t>(new_ref); 1940423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier } 1941423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier } 19420399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 1943d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 19444f894e385e8ac018f078be75fea0a45696626b15Shih-wei Liao } 1945d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 1946d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 1947d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 1948530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 1949d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 1950d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 1951d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers private: 19526f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier static bool TestBitmap(int reg, const uint8_t* reg_vector) { 1953d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers return ((reg_vector[reg / 8] >> (reg % 8)) & 0x01) != 0; 1954d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 1955d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 19566f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier // Visitor for when we visit a root. 195740e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogers const RootVisitor& visitor_; 19586f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 19590c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // A method helper we keep around to avoid dex file/cache re-computations. 19600c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers MethodHelper mh_; 1961d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers}; 1962d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 19636f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartierclass RootCallbackVisitor { 19646f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier public: 196583c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier RootCallbackVisitor(RootCallback* callback, void* arg, uint32_t tid) 196683c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier : callback_(callback), arg_(arg), tid_(tid) {} 19676f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 1968423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier mirror::Object* operator()(mirror::Object* obj, size_t, const StackVisitor*) const { 196983c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier return callback_(obj, arg_, tid_, kRootJavaFrame); 19706f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier } 19716f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 19726f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier private: 197383c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier RootCallback* const callback_; 197440e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogers void* const arg_; 197583c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier const uint32_t tid_; 19766f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier}; 19776f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 1978590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartiervoid Thread::SetClassLoaderOverride(mirror::ClassLoader* class_loader_override) { 1979590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier if (kIsDebugBuild) { 1980590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier Runtime::Current()->GetHeap()->VerifyObject(class_loader_override); 1981590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier } 1982590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier class_loader_override_ = class_loader_override; 1983590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier} 1984590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier 198583c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartiervoid Thread::VisitRoots(RootCallback* visitor, void* arg) { 198683c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier uint32_t thread_id = GetThreadId(); 1987423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (opeer_ != nullptr) { 198883c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier opeer_ = visitor(opeer_, arg, thread_id, kRootThreadObject); 1989cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers } 1990423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (exception_ != nullptr) { 199183c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier exception_ = down_cast<mirror::Throwable*>(visitor(exception_, arg, thread_id, 199283c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier kRootNativeStack)); 1993d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 199462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers throw_location_.VisitRoots(visitor, arg); 1995423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (class_loader_override_ != nullptr) { 199683c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier class_loader_override_ = 199783c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier down_cast<mirror::ClassLoader*>(visitor(class_loader_override_, arg, thread_id, 199883c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier kRootNativeStack)); 199940381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom } 200083c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier jni_env_->locals.VisitRoots(visitor, arg, thread_id, kRootJNILocal); 200183c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier jni_env_->monitors.VisitRoots(visitor, arg, thread_id, kRootJNIMonitor); 200289bb1449bbef1863b12dfa3813ab7c78be94316fMathieu Chartier SirtVisitRoots(visitor, arg, thread_id); 2003d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers // Visit roots on this thread's stack 20040399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers Context* context = GetLongJumpContext(); 200583c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier RootCallbackVisitor visitorToCallback(visitor, arg, thread_id); 20067a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers ReferenceMapVisitor<RootCallbackVisitor> mapper(this, context, visitorToCallback); 20070399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers mapper.WalkStack(); 20080399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ReleaseLongJumpContext(context); 2009423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier for (instrumentation::InstrumentationStackFrame& frame : *GetInstrumentationStack()) { 2010423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (frame.this_object_ != nullptr) { 201183c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier frame.this_object_ = visitor(frame.this_object_, arg, thread_id, kRootJavaFrame); 201262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 2013423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier DCHECK(frame.method_ != nullptr); 201483c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier frame.method_ = down_cast<mirror::ArtMethod*>(visitor(frame.method_, arg, thread_id, 201583c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier kRootJavaFrame)); 201662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 2017410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes} 2018410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes 201983c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartierstatic mirror::Object* VerifyRoot(mirror::Object* root, void* arg, uint32_t /*thread_id*/, 202083c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier RootType /*root_type*/) { 2021423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier DCHECK(root != nullptr); 2022423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier DCHECK(arg != nullptr); 2023423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier reinterpret_cast<gc::Heap*>(arg)->VerifyObject(root); 2024423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier return root; 2025250455229aa0cc07bbd18174efe510bd52631a99jeffhao} 2026250455229aa0cc07bbd18174efe510bd52631a99jeffhao 202704d7aa92bc5548bc4d272b9480614f06248194ccIan Rogersvoid Thread::VerifyStackImpl() { 2028e66ac79b90a12b01b9d67ee9f7f586e638e67fabjeffhao UniquePtr<Context> context(Context::Create()); 202989bb1449bbef1863b12dfa3813ab7c78be94316fMathieu Chartier RootCallbackVisitor visitorToCallback(VerifyRoot, Runtime::Current()->GetHeap(), GetThreadId()); 203004d7aa92bc5548bc4d272b9480614f06248194ccIan Rogers ReferenceMapVisitor<RootCallbackVisitor> mapper(this, context.get(), visitorToCallback); 20310399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers mapper.WalkStack(); 2032250455229aa0cc07bbd18174efe510bd52631a99jeffhao} 2033250455229aa0cc07bbd18174efe510bd52631a99jeffhao 203400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers// Set the stack end to that to be used during a stack overflow 203500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::SetStackEndForStackOverflow() { 20367571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom // During stack overflow we allow use of the full stack. 203700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (stack_end_ == stack_begin_) { 20387571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom // However, we seem to have already extended to use the full stack. 20397571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom LOG(ERROR) << "Need to increase kStackOverflowReservedBytes (currently " 20407571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom << kStackOverflowReservedBytes << ")?"; 20417571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom DumpStack(LOG(ERROR)); 20427571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom LOG(FATAL) << "Recursive stack overflow."; 204300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 204400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 204500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers stack_end_ = stack_begin_; 204600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 204700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 2048e6da9af8dfe0a3e3fbc2be700554f6478380e7b9Mathieu Chartiervoid Thread::SetTlab(byte* start, byte* end) { 2049692fafd9778141fa6ef0048c9569abd7ee0253bfMathieu Chartier DCHECK_LE(start, end); 2050692fafd9778141fa6ef0048c9569abd7ee0253bfMathieu Chartier thread_local_start_ = start; 2051692fafd9778141fa6ef0048c9569abd7ee0253bfMathieu Chartier thread_local_pos_ = thread_local_start_; 2052692fafd9778141fa6ef0048c9569abd7ee0253bfMathieu Chartier thread_local_end_ = end; 2053692fafd9778141fa6ef0048c9569abd7ee0253bfMathieu Chartier thread_local_objects_ = 0; 2054692fafd9778141fa6ef0048c9569abd7ee0253bfMathieu Chartier} 2055692fafd9778141fa6ef0048c9569abd7ee0253bfMathieu Chartier 2056330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughesstd::ostream& operator<<(std::ostream& os, const Thread& thread) { 205700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers thread.ShortDump(os); 2058330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes return os; 2059330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes} 2060330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes 20618daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes} // namespace art 2062