thread.cc revision 067d20fd2fddd947ce3a014d023e9de249082ebe
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" 43d889178ec78930538d9d6a66c3df9ee9afaffbb4Mathieu Chartier#include "entrypoints/quick/quick_alloc_entrypoints.h" 440c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers#include "gc_map.h" 451d54e73444e017d3a65234e0f193846f3e27472bIan Rogers#include "gc/accounting/card_table-inl.h" 461d54e73444e017d3a65234e0f193846f3e27472bIan Rogers#include "gc/heap.h" 471d54e73444e017d3a65234e0f193846f3e27472bIan Rogers#include "gc/space/space.h" 485d9173014c1ca09f7249a6b07629aa37778b5f8fJeff Hao#include "invoke_arg_array_builder.h" 49c5f7c91ab89055cffb573fff7e06dbdd860bccedElliott Hughes#include "jni_internal.h" 50ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom#include "mirror/art_field-inl.h" 51ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom#include "mirror/art_method-inl.h" 522dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/class-inl.h" 532dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/class_loader.h" 542dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/object_array-inl.h" 552dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/stack_trace_element.h" 568e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes#include "monitor.h" 576d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers#include "object_utils.h" 589a6bae896a2f003d7216603bf29771d105c10ca4Jesse Wilson#include "reflection.h" 59578bbdc684db8ed68e9fedbc678669d27fa68b6eBrian Carlstrom#include "runtime.h" 6000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers#include "scoped_thread_state_change.h" 6146e251bf7200cc06f5a9a82ee2030e650f5e1443Elliott Hughes#include "ScopedLocalRef.h" 623c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum#include "ScopedUtfChars.h" 631f5393447b9f45be7918042d9ee7b521376de866Ian Rogers#include "sirt_ref.h" 6468e76526e98432625464022cb26f66b9ef6f5af4Elliott Hughes#include "stack.h" 6568e76526e98432625464022cb26f66b9ef6f5af4Elliott Hughes#include "stack_indirect_reference_table.h" 66693ff61274cd2c9b8eb7e68c370f84a911b8ca52Ian Rogers#include "thread-inl.h" 678daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes#include "thread_list.h" 68a09576416788b916095739e43a16917e7948f3a4Elliott Hughes#include "utils.h" 69ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa#include "verifier/dex_gc_map.h" 704e30541a92381fb280cd0be9a1763b713ee4d64cMathieu Chartier#include "verify_object-inl.h" 711809a72a66d245ae598582d658b93a24ac3bf01eIan Rogers#include "vmap_table.h" 72eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes#include "well_known_classes.h" 73b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 74b557353b22c728eecbd1c68593b482622c7782a8Carl Shapironamespace art { 75b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 760878d654e7be8c9666579e22522704d8887415ccIan Rogersbool Thread::is_started_ = false; 77b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiropthread_key_t Thread::pthread_key_self_; 780aded089f565008ba5908e395e5914ca4f91f2deDave AllisonConditionVariable* Thread::resume_cond_ = nullptr; 79b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 807dc5166ea740359d381097a7ab382c1dd404055fElliott Hughesstatic const char* kThreadNameDuringStartup = "<native thread without managed peer>"; 817dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes 825d76c435082332ef79a22962386fa92a0870e378Ian Rogersvoid Thread::InitCardTable() { 83b3bd5f07884f5a1f2b84224363b1372d7c28d447Elliott Hughes card_table_ = Runtime::Current()->GetHeap()->GetCardTable()->GetBiasedBegin(); 845d76c435082332ef79a22962386fa92a0870e378Ian Rogers} 855d76c435082332ef79a22962386fa92a0870e378Ian Rogers 8699250ba6a2cc72b8894dffa77c1fca5570087e3cElliott Hughes#if !defined(__APPLE__) 873ea0f42467790809fcfc9fc861605d465808090fElliott Hughesstatic void UnimplementedEntryPoint() { 883ea0f42467790809fcfc9fc861605d465808090fElliott Hughes UNIMPLEMENTED(FATAL); 893ea0f42467790809fcfc9fc861605d465808090fElliott Hughes} 9099250ba6a2cc72b8894dffa77c1fca5570087e3cElliott Hughes#endif 913ea0f42467790809fcfc9fc861605d465808090fElliott Hughes 92848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogersvoid InitEntryPoints(InterpreterEntryPoints* ipoints, JniEntryPoints* jpoints, 93848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers PortableEntryPoints* ppoints, QuickEntryPoints* qpoints); 947655f29fabc0a12765de828914a18314382e5a35Ian Rogers 95848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogersvoid Thread::InitTlsEntryPoints() { 967934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom#if !defined(__APPLE__) // The Mac GCC is too old to accept this code. 973ea0f42467790809fcfc9fc861605d465808090fElliott Hughes // Insert a placeholder so we can easily tell if we call an unimplemented entry point. 98848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers uintptr_t* begin = reinterpret_cast<uintptr_t*>(&interpreter_entrypoints_); 997655f29fabc0a12765de828914a18314382e5a35Ian Rogers uintptr_t* end = reinterpret_cast<uintptr_t*>(reinterpret_cast<uint8_t*>(begin) + sizeof(quick_entrypoints_)); 1007655f29fabc0a12765de828914a18314382e5a35Ian Rogers for (uintptr_t* it = begin; it != end; ++it) { 1017655f29fabc0a12765de828914a18314382e5a35Ian Rogers *it = reinterpret_cast<uintptr_t>(UnimplementedEntryPoint); 1027655f29fabc0a12765de828914a18314382e5a35Ian Rogers } 103848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers begin = reinterpret_cast<uintptr_t*>(&interpreter_entrypoints_); 1047655f29fabc0a12765de828914a18314382e5a35Ian Rogers end = reinterpret_cast<uintptr_t*>(reinterpret_cast<uint8_t*>(begin) + sizeof(portable_entrypoints_)); 1053ea0f42467790809fcfc9fc861605d465808090fElliott Hughes for (uintptr_t* it = begin; it != end; ++it) { 1063ea0f42467790809fcfc9fc861605d465808090fElliott Hughes *it = reinterpret_cast<uintptr_t>(UnimplementedEntryPoint); 1073ea0f42467790809fcfc9fc861605d465808090fElliott Hughes } 10899250ba6a2cc72b8894dffa77c1fca5570087e3cElliott Hughes#endif 109848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers InitEntryPoints(&interpreter_entrypoints_, &jni_entrypoints_, &portable_entrypoints_, 110848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers &quick_entrypoints_); 111c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes} 112c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes 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. 401d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz if (runtime->IsActiveTransaction()) { 402d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz InitPeer<true>(soa, thread_is_daemon, thread_group, thread_name.get(), thread_priority); 403d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz } else { 404d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz InitPeer<false>(soa, thread_is_daemon, thread_group, thread_name.get(), thread_priority); 405d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz } 40600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers peer_thread_name.reset(GetThreadName(soa)); 40700fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom } 408225f5a1df25241babd16cdba54056b9e2cd166a2Elliott Hughes // 'thread_name' may have been null, so don't trust 'peer_thread_name' to be non-null. 4090aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (peer_thread_name.get() != nullptr) { 410899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes SetThreadName(peer_thread_name->ToModifiedUtf8().c_str()); 41100fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom } 41261e019d291583029c01b61b93bea750f2b663c37Carl Shapiro} 41361e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 414d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertztemplate<bool kTransactionActive> 415d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertzvoid Thread::InitPeer(ScopedObjectAccess& soa, jboolean thread_is_daemon, jobject thread_group, 416d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz jobject thread_name, jint thread_priority) { 417d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz soa.DecodeField(WellKnownClasses::java_lang_Thread_daemon)-> 418d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz SetBoolean<kTransactionActive>(opeer_, thread_is_daemon); 419d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz soa.DecodeField(WellKnownClasses::java_lang_Thread_group)-> 420d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz SetObject<kTransactionActive>(opeer_, soa.Decode<mirror::Object*>(thread_group)); 421d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz soa.DecodeField(WellKnownClasses::java_lang_Thread_name)-> 422d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz SetObject<kTransactionActive>(opeer_, soa.Decode<mirror::Object*>(thread_name)); 423d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz soa.DecodeField(WellKnownClasses::java_lang_Thread_priority)-> 424d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz SetInt<kTransactionActive>(opeer_, thread_priority); 425d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz} 426d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz 427899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughesvoid Thread::SetThreadName(const char* name) { 428899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes name_->assign(name); 429899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes ::art::SetThreadName(name); 430899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes Dbg::DdmSendThreadNotification(this, CHUNK_TYPE("THNM")); 431899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes} 432899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes 433be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughesvoid Thread::InitStackHwm() { 434e188419b971936086a188843378375f5ced13724Elliott Hughes void* stack_base; 435e188419b971936086a188843378375f5ced13724Elliott Hughes size_t stack_size; 4362921201dce37ba40c55b89c0deca3c34bf64168eBrian Carlstrom GetThreadStack(pthread_self_, &stack_base, &stack_size); 43736ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 43836ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // TODO: include this in the thread dumps; potentially useful in SIGQUIT output? 439e188419b971936086a188843378375f5ced13724Elliott Hughes VLOG(threads) << StringPrintf("Native stack is at %p (%s)", stack_base, PrettySize(stack_size).c_str()); 440e188419b971936086a188843378375f5ced13724Elliott Hughes 441e188419b971936086a188843378375f5ced13724Elliott Hughes stack_begin_ = reinterpret_cast<byte*>(stack_base); 442e188419b971936086a188843378375f5ced13724Elliott Hughes stack_size_ = stack_size; 44336ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 444932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers if (stack_size_ <= kStackOverflowReservedBytes) { 4453d30d9b09c16542d41554aad9f46ec9109ba5cb5Elliott Hughes LOG(FATAL) << "Attempt to attach a thread with a too-small stack (" << stack_size_ << " bytes)"; 446be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 447449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes 448e188419b971936086a188843378375f5ced13724Elliott Hughes // TODO: move this into the Linux GetThreadStack implementation. 449e188419b971936086a188843378375f5ced13724Elliott Hughes#if !defined(__APPLE__) 45036ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // If we're the main thread, check whether we were run with an unlimited stack. In that case, 45136ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // glibc will have reported a 2GB stack for our 32-bit process, and our stack overflow detection 45236ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // will be broken because we'll die long before we get close to 2GB. 453120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers bool is_main_thread = (::art::GetTid() == getpid()); 454120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (is_main_thread) { 45536ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes rlimit stack_limit; 45636ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes if (getrlimit(RLIMIT_STACK, &stack_limit) == -1) { 45736ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes PLOG(FATAL) << "getrlimit(RLIMIT_STACK) failed"; 45836ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes } 45936ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes if (stack_limit.rlim_cur == RLIM_INFINITY) { 46036ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // Find the default stack size for new threads... 46136ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes pthread_attr_t default_attributes; 46236ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes size_t default_stack_size; 46336ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_init, (&default_attributes), "default stack size query"); 46436ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_getstacksize, (&default_attributes, &default_stack_size), 46536ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes "default stack size query"); 46636ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_destroy, (&default_attributes), "default stack size query"); 46736ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 46836ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // ...and use that as our limit. 46936ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes size_t old_stack_size = stack_size_; 47036ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes stack_size_ = default_stack_size; 47136ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes stack_begin_ += (old_stack_size - stack_size_); 472faf4ba01738400f418b45c4323aa9e8e6b6ba2a0Elliott Hughes VLOG(threads) << "Limiting unlimited stack (reported as " << PrettySize(old_stack_size) << ")" 473faf4ba01738400f418b45c4323aa9e8e6b6ba2a0Elliott Hughes << " to " << PrettySize(stack_size_) 474faf4ba01738400f418b45c4323aa9e8e6b6ba2a0Elliott Hughes << " with base " << reinterpret_cast<void*>(stack_begin_); 47536ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes } 47636ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes } 477e188419b971936086a188843378375f5ced13724Elliott Hughes#endif 47836ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 479932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // Set stack_end_ to the bottom of the stack saving space of stack overflows 480932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers ResetDefaultStackEnd(); 481449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes 482449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes // Sanity check. 483449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes int stack_variable; 484398f64b5805246765b699839b439e18c0dfbf2eeElliott Hughes CHECK_GT(&stack_variable, reinterpret_cast<void*>(stack_end_)); 485be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes} 486be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 48700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::ShortDump(std::ostream& os) const { 48800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers os << "Thread["; 489d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers if (GetThreadId() != 0) { 49000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // If we're in kStarting, we won't have a thin lock id or tid yet. 491d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers os << GetThreadId() 49200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << ",tid=" << GetTid() << ','; 493e0918556e7551de638870dcad3f2023f94f85a50Elliott Hughes } 494474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers os << GetState() 49500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << ",Thread*=" << this 496cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers << ",peer=" << opeer_ 49700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << ",\"" << *name_ << "\"" 49800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << "]"; 499d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes} 500d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 50100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::Dump(std::ostream& os) const { 50200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DumpState(os); 50300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DumpStack(os); 50400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 50500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 5062dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersmirror::String* Thread::GetThreadName(const ScopedObjectAccessUnchecked& soa) const { 507ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtField* f = soa.DecodeField(WellKnownClasses::java_lang_Thread_name); 5080aded089f565008ba5908e395e5914ca4f91f2deDave Allison return (opeer_ != nullptr) ? reinterpret_cast<mirror::String*>(f->GetObject(opeer_)) : nullptr; 509fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes} 510fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes 511ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughesvoid Thread::GetThreadName(std::string& name) const { 512ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes name.assign(*name_); 513ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes} 514ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes 51557dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Haouint64_t Thread::GetCpuMicroTime() const { 51657dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao#if defined(HAVE_POSIX_CLOCKS) 51757dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao clockid_t cpu_clock_id; 51857dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao pthread_getcpuclockid(pthread_self_, &cpu_clock_id); 51957dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao timespec now; 52057dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao clock_gettime(cpu_clock_id, &now); 52157dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao return static_cast<uint64_t>(now.tv_sec) * 1000000LL + now.tv_nsec / 1000LL; 52257dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao#else 52357dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao UNIMPLEMENTED(WARNING); 52457dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao return -1; 52557dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao#endif 52657dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao} 52757dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao 528474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogersvoid Thread::AtomicSetFlag(ThreadFlag flag) { 52930e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers android_atomic_or(flag, &state_and_flags_.as_int); 530474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers} 531474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers 532474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogersvoid Thread::AtomicClearFlag(ThreadFlag flag) { 53330e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers android_atomic_and(-1 ^ flag, &state_and_flags_.as_int); 534474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers} 535474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers 53601ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers// Attempt to rectify locks so that we dump thread list with required locks before exiting. 53701ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogersstatic void UnsafeLogFatalForSuspendCount(Thread* self, Thread* thread) NO_THREAD_SAFETY_ANALYSIS { 538120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << *thread << " suspend count already zero."; 53901ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::thread_suspend_count_lock_->Unlock(self); 54001ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::mutator_lock_->IsSharedHeld(self)) { 54101ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::mutator_lock_->SharedTryLock(self); 54201ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::mutator_lock_->IsSharedHeld(self)) { 54301ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers LOG(WARNING) << "Dumping thread list without holding mutator_lock_"; 54401ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 54501ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 54601ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::thread_list_lock_->IsExclusiveHeld(self)) { 54701ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::thread_list_lock_->TryLock(self); 54801ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::thread_list_lock_->IsExclusiveHeld(self)) { 54901ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers LOG(WARNING) << "Dumping thread list without holding thread_list_lock_"; 55001ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 55101ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 55201ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers std::ostringstream ss; 55301ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Runtime::Current()->GetThreadList()->DumpLocked(ss); 554120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(FATAL) << ss.str(); 55501ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers} 55601ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers 55701ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogersvoid Thread::ModifySuspendCount(Thread* self, int delta, bool for_debugger) { 55800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DCHECK(delta == -1 || delta == +1 || delta == -debug_suspend_count_) 55900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << delta << " " << debug_suspend_count_ << " " << this; 56000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DCHECK_GE(suspend_count_, debug_suspend_count_) << this; 56101ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::thread_suspend_count_lock_->AssertHeld(self); 562cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (this != self && !IsSuspended()) { 563cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers Locks::thread_list_lock_->AssertHeld(self); 564cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers } 56501ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (UNLIKELY(delta < 0 && suspend_count_ <= 0)) { 56601ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers UnsafeLogFatalForSuspendCount(self, this); 56700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return; 56800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 56901ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers 57000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers suspend_count_ += delta; 57100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (for_debugger) { 57200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers debug_suspend_count_ += delta; 57300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 57401ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers 575474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers if (suspend_count_ == 0) { 576474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers AtomicClearFlag(kSuspendRequest); 577474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers } else { 578474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers AtomicSetFlag(kSuspendRequest); 579474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers } 58000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 58100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 582752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartiervoid Thread::RunCheckpointFunction() { 5830aded089f565008ba5908e395e5914ca4f91f2deDave Allison Closure *checkpoints[kMaxCheckpoints]; 5840aded089f565008ba5908e395e5914ca4f91f2deDave Allison 5850aded089f565008ba5908e395e5914ca4f91f2deDave Allison // Grab the suspend_count lock and copy the current set of 5860aded089f565008ba5908e395e5914ca4f91f2deDave Allison // checkpoints. Then clear the list and the flag. The RequestCheckpoint 5870aded089f565008ba5908e395e5914ca4f91f2deDave Allison // function will also grab this lock so we prevent a race between setting 5880aded089f565008ba5908e395e5914ca4f91f2deDave Allison // the kCheckpointRequest flag and clearing it. 5890aded089f565008ba5908e395e5914ca4f91f2deDave Allison { 5900aded089f565008ba5908e395e5914ca4f91f2deDave Allison MutexLock mu(this, *Locks::thread_suspend_count_lock_); 5910aded089f565008ba5908e395e5914ca4f91f2deDave Allison for (uint32_t i = 0; i < kMaxCheckpoints; ++i) { 5920aded089f565008ba5908e395e5914ca4f91f2deDave Allison checkpoints[i] = checkpoint_functions_[i]; 5930aded089f565008ba5908e395e5914ca4f91f2deDave Allison checkpoint_functions_[i] = nullptr; 5940aded089f565008ba5908e395e5914ca4f91f2deDave Allison } 5950aded089f565008ba5908e395e5914ca4f91f2deDave Allison AtomicClearFlag(kCheckpointRequest); 5960aded089f565008ba5908e395e5914ca4f91f2deDave Allison } 5970aded089f565008ba5908e395e5914ca4f91f2deDave Allison 5980aded089f565008ba5908e395e5914ca4f91f2deDave Allison // Outside the lock, run all the checkpoint functions that 5990aded089f565008ba5908e395e5914ca4f91f2deDave Allison // we collected. 6000aded089f565008ba5908e395e5914ca4f91f2deDave Allison bool found_checkpoint = false; 6010aded089f565008ba5908e395e5914ca4f91f2deDave Allison for (uint32_t i = 0; i < kMaxCheckpoints; ++i) { 6020aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (checkpoints[i] != nullptr) { 6030aded089f565008ba5908e395e5914ca4f91f2deDave Allison ATRACE_BEGIN("Checkpoint function"); 6040aded089f565008ba5908e395e5914ca4f91f2deDave Allison checkpoints[i]->Run(this); 6050aded089f565008ba5908e395e5914ca4f91f2deDave Allison ATRACE_END(); 6060aded089f565008ba5908e395e5914ca4f91f2deDave Allison found_checkpoint = true; 6070aded089f565008ba5908e395e5914ca4f91f2deDave Allison } 6080aded089f565008ba5908e395e5914ca4f91f2deDave Allison } 6090aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(found_checkpoint); 610752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier} 611752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier 6120e4627e593bc39f8e3d89c31f8977d55054c07ccMathieu Chartierbool Thread::RequestCheckpoint(Closure* function) { 61359cde534aa295bad7de29472b3cce9576d7996a8Chris Dearman union StateAndFlags old_state_and_flags; 61459cde534aa295bad7de29472b3cce9576d7996a8Chris Dearman old_state_and_flags.as_int = state_and_flags_.as_int; 615d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers if (old_state_and_flags.as_struct.state != kRunnable) { 616d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers return false; // Fail, thread is suspended and so can't run a checkpoint. 617d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers } 6180aded089f565008ba5908e395e5914ca4f91f2deDave Allison 6190aded089f565008ba5908e395e5914ca4f91f2deDave Allison uint32_t available_checkpoint = kMaxCheckpoints; 6200aded089f565008ba5908e395e5914ca4f91f2deDave Allison for (uint32_t i = 0 ; i < kMaxCheckpoints; ++i) { 6210aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (checkpoint_functions_[i] == nullptr) { 6220aded089f565008ba5908e395e5914ca4f91f2deDave Allison available_checkpoint = i; 6230aded089f565008ba5908e395e5914ca4f91f2deDave Allison break; 6240aded089f565008ba5908e395e5914ca4f91f2deDave Allison } 6250aded089f565008ba5908e395e5914ca4f91f2deDave Allison } 6260aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (available_checkpoint == kMaxCheckpoints) { 6270aded089f565008ba5908e395e5914ca4f91f2deDave Allison // No checkpoint functions available, we can't run a checkpoint 6280aded089f565008ba5908e395e5914ca4f91f2deDave Allison return false; 629d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers } 6300aded089f565008ba5908e395e5914ca4f91f2deDave Allison checkpoint_functions_[available_checkpoint] = function; 6310aded089f565008ba5908e395e5914ca4f91f2deDave Allison 632d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers // Checkpoint function installed now install flag bit. 633858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier // We must be runnable to request a checkpoint. 6345f51d4b80058236759fea1d932470a57f348c199Mathieu Chartier DCHECK_EQ(old_state_and_flags.as_struct.state, kRunnable); 63559cde534aa295bad7de29472b3cce9576d7996a8Chris Dearman union StateAndFlags new_state_and_flags; 63659cde534aa295bad7de29472b3cce9576d7996a8Chris Dearman new_state_and_flags.as_int = old_state_and_flags.as_int; 637858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier new_state_and_flags.as_struct.flags |= kCheckpointRequest; 6380aded089f565008ba5908e395e5914ca4f91f2deDave Allison int succeeded = android_atomic_acquire_cas(old_state_and_flags.as_int, new_state_and_flags.as_int, 639858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier &state_and_flags_.as_int); 640d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers if (UNLIKELY(succeeded != 0)) { 641d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers // The thread changed state before the checkpoint was installed. 6420aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK_EQ(checkpoint_functions_[available_checkpoint], function); 6430aded089f565008ba5908e395e5914ca4f91f2deDave Allison checkpoint_functions_[available_checkpoint] = nullptr; 6440aded089f565008ba5908e395e5914ca4f91f2deDave Allison } else { 6450aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK_EQ(ReadFlag(kCheckpointRequest), true); 646d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers } 647858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier return succeeded == 0; 648858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier} 649858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier 65000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::FullSuspendCheck() { 65100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers VLOG(threads) << this << " self-suspending"; 652752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier ATRACE_BEGIN("Full suspend check"); 65300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Make thread appear suspended to other threads, release mutator_lock_. 65400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers TransitionFromRunnableToSuspended(kSuspended); 65500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Transition back to runnable noting requests to suspend, re-acquire share on mutator_lock_. 65600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers TransitionFromSuspendedToRunnable(); 657752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier ATRACE_END(); 65800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers VLOG(threads) << this << " self-reviving"; 65900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 66000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 661abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughesvoid Thread::DumpState(std::ostream& os, const Thread* thread, pid_t tid) { 662d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes std::string group_name; 663d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes int priority; 664d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes bool is_daemon = false; 66581d425b0b232962441616f8b14f73620bffef5e5Ian Rogers Thread* self = Thread::Current(); 666d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 6670aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (self != nullptr && thread != nullptr && thread->opeer_ != nullptr) { 668cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedObjectAccessUnchecked soa(self); 669cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers priority = soa.DecodeField(WellKnownClasses::java_lang_Thread_priority)->GetInt(thread->opeer_); 670cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers is_daemon = soa.DecodeField(WellKnownClasses::java_lang_Thread_daemon)->GetBoolean(thread->opeer_); 671d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 6722dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* thread_group = 673cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers soa.DecodeField(WellKnownClasses::java_lang_Thread_group)->GetObject(thread->opeer_); 674120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 6750aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (thread_group != nullptr) { 676ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtField* group_name_field = 6772dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers soa.DecodeField(WellKnownClasses::java_lang_ThreadGroup_name); 6782dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::String* group_name_string = 6792dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers reinterpret_cast<mirror::String*>(group_name_field->GetObject(thread_group)); 6800aded089f565008ba5908e395e5914ca4f91f2deDave Allison group_name = (group_name_string != nullptr) ? group_name_string->ToModifiedUtf8() : "<null>"; 681d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 682d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } else { 683d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes priority = GetNativePriority(); 684dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes } 685d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 686abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes std::string scheduler_group_name(GetSchedulerGroupName(tid)); 6871bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughes if (scheduler_group_name.empty()) { 6881bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughes scheduler_group_name = "default"; 689d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 690d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 6910aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (thread != nullptr) { 692abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << '"' << *thread->name_ << '"'; 693abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (is_daemon) { 694abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " daemon"; 695abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } 696abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " prio=" << priority 697d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers << " tid=" << thread->GetThreadId() 69880537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes << " " << thread->GetState(); 69980537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes if (thread->IsStillStarting()) { 70080537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes os << " (still starting up)"; 70180537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes } 70280537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes os << "\n"; 703abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } else { 704289be85116aaf7c48413858b5d0448868b4e61f3Elliott Hughes os << '"' << ::art::GetThreadName(tid) << '"' 705abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " prio=" << priority 706abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " (not attached)\n"; 707abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } 708abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes 7090aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (thread != nullptr) { 71081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(self, *Locks::thread_suspend_count_lock_); 711abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " | group=\"" << group_name << "\"" 712abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " sCount=" << thread->suspend_count_ 713abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " dsCount=" << thread->debug_suspend_count_ 714cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers << " obj=" << reinterpret_cast<void*>(thread->opeer_) 715abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " self=" << reinterpret_cast<const void*>(thread) << "\n"; 716d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 7170d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes 718abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " | sysTid=" << tid 719abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " nice=" << getpriority(PRIO_PROCESS, tid) 7200d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes << " cgrp=" << scheduler_group_name; 7210aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (thread != nullptr) { 7220d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes int policy; 7230d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes sched_param sp; 7240d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes CHECK_PTHREAD_CALL(pthread_getschedparam, (thread->pthread_self_, &policy, &sp), __FUNCTION__); 7250d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes os << " sched=" << policy << "/" << sp.sched_priority 7260d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes << " handle=" << reinterpret_cast<void*>(thread->pthread_self_); 7270d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes } 7280d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes os << "\n"; 729d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 730d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes // Grab the scheduler stats for this thread. 731d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes std::string scheduler_stats; 732abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (ReadFileToString(StringPrintf("/proc/self/task/%d/schedstat", tid), &scheduler_stats)) { 7337934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom scheduler_stats.resize(scheduler_stats.size() - 1); // Lose the trailing '\n'. 734d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } else { 735d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes scheduler_stats = "0 0 0"; 736d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 737d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 738ba0b9c55adce3f533845ab1b25c552589e5b4118Elliott Hughes char native_thread_state = '?'; 739d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int utime = 0; 740d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int stime = 0; 741d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int task_cpu = 0; 7422921201dce37ba40c55b89c0deca3c34bf64168eBrian Carlstrom GetTaskStats(tid, &native_thread_state, &utime, &stime, &task_cpu); 743d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 744ba0b9c55adce3f533845ab1b25c552589e5b4118Elliott Hughes os << " | state=" << native_thread_state 745ba0b9c55adce3f533845ab1b25c552589e5b4118Elliott Hughes << " schedstat=( " << scheduler_stats << " )" 746d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes << " utm=" << utime 747d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes << " stm=" << stime 748abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " core=" << task_cpu 749abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " HZ=" << sysconf(_SC_CLK_TCK) << "\n"; 7500aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (thread != nullptr) { 751abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " | stack=" << reinterpret_cast<void*>(thread->stack_begin_) << "-" << reinterpret_cast<void*>(thread->stack_end_) 752abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " stackSize=" << PrettySize(thread->stack_size_) << "\n"; 753abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } 754abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes} 755abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes 756abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughesvoid Thread::DumpState(std::ostream& os) const { 757abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes Thread::DumpState(os, this, GetTid()); 758a09576416788b916095739e43a16917e7948f3a4Elliott Hughes} 759a09576416788b916095739e43a16917e7948f3a4Elliott Hughes 7600399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersstruct StackDumpVisitor : public StackVisitor { 7617a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers StackDumpVisitor(std::ostream& os, Thread* thread, Context* context, bool can_allocate) 762b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 7637a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers : StackVisitor(thread, context), os(os), thread(thread), can_allocate(can_allocate), 7640aded089f565008ba5908e395e5914ca4f91f2deDave Allison last_method(nullptr), last_line_number(0), repetition_count(0), frame_count(0) { 765d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 766d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 767bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers virtual ~StackDumpVisitor() { 768e85d2e924953f1a13b7152edba1c13853e6f3a86Elliott Hughes if (frame_count == 0) { 769e85d2e924953f1a13b7152edba1c13853e6f3a86Elliott Hughes os << " (no managed stack frames)\n"; 770e85d2e924953f1a13b7152edba1c13853e6f3a86Elliott Hughes } 771d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 772d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 773b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 774ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = GetMethod(); 7750399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (m->IsRuntimeMethod()) { 776530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 7779086572fa809d1a19d886b467e4da3ce42016982Ian Rogers } 77828ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers const int kMaxRepetition = 3; 7792dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Class* c = m->GetDeclaringClass(); 780ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers mirror::DexCache* dex_cache = c->GetDexCache(); 781b861dc0077342d5a1d2dd9cade3f6990620778ecIan Rogers int line_number = -1; 7820aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (dex_cache != nullptr) { // be tolerant of bad input 7834445a7e3398a6143939168097a3aa275b734504dIan Rogers const DexFile& dex_file = *dex_cache->GetDexFile(); 7840399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers line_number = dex_file.GetLineNumFromPC(m, GetDexPc()); 785b861dc0077342d5a1d2dd9cade3f6990620778ecIan Rogers } 78628ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (line_number == last_line_number && last_method == m) { 7870aded089f565008ba5908e395e5914ca4f91f2deDave Allison ++repetition_count; 788d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } else { 78928ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (repetition_count >= kMaxRepetition) { 79028ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << " ... repeated " << (repetition_count - kMaxRepetition) << " times\n"; 79128ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 79228ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers repetition_count = 0; 79328ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers last_line_number = line_number; 79428ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers last_method = m; 79528ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 79628ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (repetition_count < kMaxRepetition) { 79728ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << " at " << PrettyMethod(m, false); 79828ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (m->IsNative()) { 79928ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << "(Native method)"; 80028ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } else { 8016d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers mh.ChangeMethod(m); 8026d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers const char* source_file(mh.GetDeclaringClassSourceFile()); 8030aded089f565008ba5908e395e5914ca4f91f2deDave Allison os << "(" << (source_file != nullptr ? source_file : "unavailable") 8042e450bf45e1bacc9c356f6ab239ccfb31bd8d7e4Brian Carlstrom << ":" << line_number << ")"; 80528ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 80628ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << "\n"; 80708fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes if (frame_count == 0) { 80808fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes Monitor::DescribeWait(os, thread); 80908fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes } 81008fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes if (can_allocate) { 8114993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes Monitor::VisitLocks(this, DumpLockedObject, &os); 81208fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes } 813d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 8148e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes 81508fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes ++frame_count; 816530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 817d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 8184993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes 8192dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers static void DumpLockedObject(mirror::Object* o, void* context) 8204993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 8214993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes std::ostream& os = *reinterpret_cast<std::ostream*>(context); 8224993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes os << " - locked <" << o << "> (a " << PrettyTypeOf(o) << ")\n"; 8234993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes } 8244993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes 82508fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes std::ostream& os; 82608fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes const Thread* thread; 8270878d654e7be8c9666579e22522704d8887415ccIan Rogers const bool can_allocate; 8286d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers MethodHelper mh; 829ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* last_method; 83028ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers int last_line_number; 83128ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers int repetition_count; 8328e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes int frame_count; 833d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes}; 834d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 83533e9566255c426e7a2c8fca5b8a1b6a94a5d352cIan Rogersstatic bool ShouldShowNativeStack(const Thread* thread) 83633e9566255c426e7a2c8fca5b8a1b6a94a5d352cIan Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 837aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes ThreadState state = thread->GetState(); 838aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes 839aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // In native code somewhere in the VM (one of the kWaitingFor* states)? That's interesting. 840aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes if (state > kWaiting && state < kStarting) { 841aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes return true; 842aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes } 843aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes 844aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // In an Object.wait variant or Thread.sleep? That's not interesting. 845aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes if (state == kTimedWaiting || state == kSleeping || state == kWaiting) { 846aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes return false; 847aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes } 848aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes 849aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // In some other native method? That's interesting. 850aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // We don't just check kNative because native methods will be in state kSuspended if they're 851aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // calling back into the VM, or kBlocked if they're blocked on a monitor, or one of the 852aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // thread-startup states if it's early enough in their life cycle (http://b/7432159). 8530aded089f565008ba5908e395e5914ca4f91f2deDave Allison mirror::ArtMethod* current_method = thread->GetCurrentMethod(nullptr); 8540aded089f565008ba5908e395e5914ca4f91f2deDave Allison return current_method != nullptr && current_method->IsNative(); 855aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes} 856aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes 857d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughesvoid Thread::DumpStack(std::ostream& os) const { 858ed1790e83352e54420018d1495eb010f7cd48a64Jeff Hao // TODO: we call this code when dying but may not have suspended the thread ourself. The 859ed1790e83352e54420018d1495eb010f7cd48a64Jeff Hao // IsSuspended check is therefore racy with the use for dumping (normally we inhibit 860ed1790e83352e54420018d1495eb010f7cd48a64Jeff Hao // the race with the thread_suspend_count_lock_). 86165530499a0169b3b0b153008e2d187c9f4939541Ian Rogers // No point dumping for an abort in debug builds where we'll hit the not suspended check in stack. 86265530499a0169b3b0b153008e2d187c9f4939541Ian Rogers bool dump_for_abort = (gAborting > 0) && !kIsDebugBuild; 863d090cf4f2420a228251e27dbae600f4f44ae2c57Ian Rogers if (this == Thread::Current() || IsSuspended() || dump_for_abort) { 864f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers // If we're currently in native code, dump that stack before dumping the managed stack. 865d090cf4f2420a228251e27dbae600f4f44ae2c57Ian Rogers if (dump_for_abort || ShouldShowNativeStack(this)) { 866f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers DumpKernelStack(os, GetTid(), " kernel: ", false); 867067d20fd2fddd947ce3a014d023e9de249082ebeKenny Root SirtRef<mirror::ArtMethod> method_ref(Thread::Current(), GetCurrentMethod(nullptr)); 868067d20fd2fddd947ce3a014d023e9de249082ebeKenny Root DumpNativeStack(os, GetTid(), " native: ", false, method_ref.get()); 869f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers } 870f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers UniquePtr<Context> context(Context::Create()); 871f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers StackDumpVisitor dumper(os, const_cast<Thread*>(this), context.get(), !throwing_OutOfMemoryError_); 872f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers dumper.WalkStack(); 873f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers } else { 874f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers os << "Not able to dump stack of thread that isn't suspended"; 875f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers } 876e27955ca3ca960928d4dbd6cb79711fce06950b3Elliott Hughes} 877e27955ca3ca960928d4dbd6cb79711fce06950b3Elliott Hughes 878be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughesvoid Thread::ThreadExitCallback(void* arg) { 879be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes Thread* self = reinterpret_cast<Thread*>(arg); 8806a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes if (self->thread_exit_check_count_ == 0) { 8816a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes LOG(WARNING) << "Native thread exiting without having called DetachCurrentThread (maybe it's going to use a pthread_key_create destructor?): " << *self; 8820878d654e7be8c9666579e22522704d8887415ccIan Rogers CHECK(is_started_); 8836a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes CHECK_PTHREAD_CALL(pthread_setspecific, (Thread::pthread_key_self_, self), "reattach self"); 8846a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes self->thread_exit_check_count_ = 1; 8856a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes } else { 8866a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes LOG(FATAL) << "Native thread exited without calling DetachCurrentThread: " << *self; 8876a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes } 888b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro} 889b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 890be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughesvoid Thread::Startup() { 8910878d654e7be8c9666579e22522704d8887415ccIan Rogers CHECK(!is_started_); 8920878d654e7be8c9666579e22522704d8887415ccIan Rogers is_started_ = true; 89300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers { 8946d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // MutexLock to keep annotalysis happy. 8956d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // 8960aded089f565008ba5908e395e5914ca4f91f2deDave Allison // Note we use nullptr for the thread because Thread::Current can 8976d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // return garbage since (is_started_ == true) and 8986d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // Thread::pthread_key_self_ is not yet initialized. 8996d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // This was seen on glibc. 9000aded089f565008ba5908e395e5914ca4f91f2deDave Allison MutexLock mu(nullptr, *Locks::thread_suspend_count_lock_); 901c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers resume_cond_ = new ConditionVariable("Thread resumption condition variable", 902c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers *Locks::thread_suspend_count_lock_); 90300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 90400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 905b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro // Allocate a TLS slot. 9068d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes CHECK_PTHREAD_CALL(pthread_key_create, (&Thread::pthread_key_self_, Thread::ThreadExitCallback), "self key"); 907b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 908b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro // Double-check the TLS slot allocation. 9090aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (pthread_getspecific(pthread_key_self_) != nullptr) { 9100aded089f565008ba5908e395e5914ca4f91f2deDave Allison LOG(FATAL) << "Newly-created pthread TLS slot is not nullptr"; 911b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro } 912038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes} 913038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes 914038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughesvoid Thread::FinishStartup() { 915365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Runtime* runtime = Runtime::Current(); 916365c10235438607541fa2259a5fec48061b90bd8Ian Rogers CHECK(runtime->IsStarted()); 917b82b6878fb000d4731063b1bf15c39ff7c50b61fBrian Carlstrom 91801158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Finish attaching the main thread. 91900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(Thread::Current()); 920365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Thread::Current()->CreatePeer("main", false, runtime->GetMainThreadGroup()); 9219a6bae896a2f003d7216603bf29771d105c10ca4Jesse Wilson 922af8d15a3267343dec135cc6df1db740c0a5c7b52Elliott Hughes Runtime::Current()->GetClassLinker()->RunRootClinits(); 923b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro} 924b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 925c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughesvoid Thread::Shutdown() { 9260878d654e7be8c9666579e22522704d8887415ccIan Rogers CHECK(is_started_); 9270878d654e7be8c9666579e22522704d8887415ccIan Rogers is_started_ = false; 9288d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes CHECK_PTHREAD_CALL(pthread_key_delete, (Thread::pthread_key_self_), "self key"); 92933e9566255c426e7a2c8fca5b8a1b6a94a5d352cIan Rogers MutexLock mu(Thread::Current(), *Locks::thread_suspend_count_lock_); 9300aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (resume_cond_ != nullptr) { 9310878d654e7be8c9666579e22522704d8887415ccIan Rogers delete resume_cond_; 9320aded089f565008ba5908e395e5914ca4f91f2deDave Allison resume_cond_ = nullptr; 9330878d654e7be8c9666579e22522704d8887415ccIan Rogers } 934c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes} 935c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes 93652673ffae0025d86f4023735581f19ebcc477487Ian RogersThread::Thread(bool daemon) 9370399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers : suspend_count_(0), 9380aded089f565008ba5908e395e5914ca4f91f2deDave Allison card_table_(nullptr), 9390aded089f565008ba5908e395e5914ca4f91f2deDave Allison exception_(nullptr), 9400aded089f565008ba5908e395e5914ca4f91f2deDave Allison stack_end_(nullptr), 9410399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers managed_stack_(), 9420aded089f565008ba5908e395e5914ca4f91f2deDave Allison jni_env_(nullptr), 9430aded089f565008ba5908e395e5914ca4f91f2deDave Allison self_(nullptr), 9440aded089f565008ba5908e395e5914ca4f91f2deDave Allison opeer_(nullptr), 9450aded089f565008ba5908e395e5914ca4f91f2deDave Allison jpeer_(nullptr), 9460aded089f565008ba5908e395e5914ca4f91f2deDave Allison stack_begin_(nullptr), 9470399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers stack_size_(0), 948d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers thin_lock_thread_id_(0), 9490aded089f565008ba5908e395e5914ca4f91f2deDave Allison stack_trace_sample_(nullptr), 9505ce4b178d2483df679e7f718e379305e5d42a300Jeff Hao trace_clock_base_(0), 9510399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers tid_(0), 952e62934d85fbc2d935afdad57eeade39ecbd7440aElliott Hughes wait_mutex_(new Mutex("a thread wait mutex")), 953c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers wait_cond_(new ConditionVariable("a thread wait condition variable", *wait_mutex_)), 9540aded089f565008ba5908e395e5914ca4f91f2deDave Allison wait_monitor_(nullptr), 9558daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes interrupted_(false), 9560aded089f565008ba5908e395e5914ca4f91f2deDave Allison wait_next_(nullptr), 9570aded089f565008ba5908e395e5914ca4f91f2deDave Allison monitor_enter_object_(nullptr), 9580aded089f565008ba5908e395e5914ca4f91f2deDave Allison top_sirt_(nullptr), 9590aded089f565008ba5908e395e5914ca4f91f2deDave Allison runtime_(nullptr), 9600aded089f565008ba5908e395e5914ca4f91f2deDave Allison class_loader_override_(nullptr), 9610aded089f565008ba5908e395e5914ca4f91f2deDave Allison long_jump_context_(nullptr), 962726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes throwing_OutOfMemoryError_(false), 9630399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers debug_suspend_count_(0), 964e343b76af81a005ef64f5e75a555389fd9147dabjeffhao debug_invoke_req_(new DebugInvokeReq), 96561b7f1b05d1fe12d4009316263bf990903e4edffSebastien Hertz single_step_control_(new SingleStepControl), 9660aded089f565008ba5908e395e5914ca4f91f2deDave Allison deoptimization_shadow_frame_(nullptr), 96762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers instrumentation_stack_(new std::deque<instrumentation::InstrumentationStackFrame>), 9680399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers name_(new std::string(kThreadNameDuringStartup)), 96952673ffae0025d86f4023735581f19ebcc477487Ian Rogers daemon_(daemon), 97000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers pthread_self_(0), 97152673ffae0025d86f4023735581f19ebcc477487Ian Rogers no_thread_suspension_(0), 9720aded089f565008ba5908e395e5914ca4f91f2deDave Allison last_no_thread_suspension_cause_(nullptr), 973692fafd9778141fa6ef0048c9569abd7ee0253bfMathieu Chartier thread_exit_check_count_(0), 974692fafd9778141fa6ef0048c9569abd7ee0253bfMathieu Chartier thread_local_start_(nullptr), 975692fafd9778141fa6ef0048c9569abd7ee0253bfMathieu Chartier thread_local_pos_(nullptr), 976692fafd9778141fa6ef0048c9569abd7ee0253bfMathieu Chartier thread_local_end_(nullptr), 977f5b0e20b5b31f5f5465784adcf2a204dcd69c7fdHiroshi Yamauchi thread_local_objects_(0), 978f5b0e20b5b31f5f5465784adcf2a204dcd69c7fdHiroshi Yamauchi thread_local_alloc_stack_top_(nullptr), 979f5b0e20b5b31f5f5465784adcf2a204dcd69c7fdHiroshi Yamauchi thread_local_alloc_stack_end_(nullptr) { 980f5a7a476e7ea63e094ff0f011dccc170607e6f6bElliott Hughes CHECK_EQ((sizeof(Thread) % 4), 0U) << sizeof(Thread); 98130e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers state_and_flags_.as_struct.flags = 0; 98230e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers state_and_flags_.as_struct.state = kNative; 983ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes memset(&held_mutexes_[0], 0, sizeof(held_mutexes_)); 984cf58d4adf461eb9b8e84baa8019054c88cd8acc6Hiroshi Yamauchi memset(rosalloc_runs_, 0, sizeof(rosalloc_runs_)); 9850aded089f565008ba5908e395e5914ca4f91f2deDave Allison for (uint32_t i = 0; i < kMaxCheckpoints; ++i) { 9860aded089f565008ba5908e395e5914ca4f91f2deDave Allison checkpoint_functions_[i] = nullptr; 9870aded089f565008ba5908e395e5914ca4f91f2deDave Allison } 988dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes} 989dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes 9907dc5166ea740359d381097a7ab382c1dd404055fElliott Hughesbool Thread::IsStillStarting() const { 9917dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // You might think you can check whether the state is kStarting, but for much of thread startup, 99280537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes // the thread is in kNative; it might also be in kVmWait. 9930aded089f565008ba5908e395e5914ca4f91f2deDave Allison // You might think you can check whether the peer is nullptr, but the peer is actually created and 9947dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // assigned fairly early on, and needs to be. 9957dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // It turns out that the last thing to change is the thread name; that's a good proxy for "has 9967dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // this thread _ever_ entered kRunnable". 9970aded089f565008ba5908e395e5914ca4f91f2deDave Allison return (jpeer_ == nullptr && opeer_ == nullptr) || (*name_ == kThreadNameDuringStartup); 9987dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes} 9997dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes 100000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::AssertNoPendingException() const { 100100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (UNLIKELY(IsExceptionPending())) { 100200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(Thread::Current()); 10030aded089f565008ba5908e395e5914ca4f91f2deDave Allison mirror::Throwable* exception = GetException(nullptr); 100400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(FATAL) << "No pending exception expected: " << exception->Dump(); 100500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 100600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 100700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 10088d7672e476a526aa6205a008b5a06c8216342ac6Mathieu Chartiervoid Thread::AssertNoPendingExceptionForNewException(const char* msg) const { 10098d7672e476a526aa6205a008b5a06c8216342ac6Mathieu Chartier if (UNLIKELY(IsExceptionPending())) { 10108d7672e476a526aa6205a008b5a06c8216342ac6Mathieu Chartier ScopedObjectAccess soa(Thread::Current()); 10118d7672e476a526aa6205a008b5a06c8216342ac6Mathieu Chartier mirror::Throwable* exception = GetException(nullptr); 10128d7672e476a526aa6205a008b5a06c8216342ac6Mathieu Chartier LOG(FATAL) << "Throwing new exception " << msg << " with unexpected pending exception: " 10138d7672e476a526aa6205a008b5a06c8216342ac6Mathieu Chartier << exception->Dump(); 10148d7672e476a526aa6205a008b5a06c8216342ac6Mathieu Chartier } 10158d7672e476a526aa6205a008b5a06c8216342ac6Mathieu Chartier} 10168d7672e476a526aa6205a008b5a06c8216342ac6Mathieu Chartier 1017815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartierstatic void MonitorExitVisitor(mirror::Object** object, void* arg, uint32_t /*thread_id*/, 1018815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier RootType /*root_type*/) 1019423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier NO_THREAD_SAFETY_ANALYSIS { 102000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Thread* self = reinterpret_cast<Thread*>(arg); 1021815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier mirror::Object* entered_monitor = *object; 102200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (self->HoldsLock(entered_monitor)) { 102300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(WARNING) << "Calling MonitorExit on object " 1024815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier << object << " (" << PrettyTypeOf(entered_monitor) << ")" 102500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << " left locked by native thread " 102600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << *Thread::Current() << " which is detaching"; 102700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers entered_monitor->MonitorExit(self); 102800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 102902b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes} 103002b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 1031c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughesvoid Thread::Destroy() { 1032120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self = this; 1033120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers DCHECK_EQ(self, Thread::Current()); 103402b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 10350aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (opeer_ != nullptr) { 1036cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedObjectAccess soa(self); 1037120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // We may need to call user-supplied managed code, do this before final clean-up. 1038cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers HandleUncaughtExceptions(soa); 1039cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers RemoveFromThreadGroup(soa); 1040534da072d3db3beecbd74e5aa23d630d73695f2cElliott Hughes 10413c50a4b4ba6d7d9369ee9a0bd6d30bf4c9c79bb0Anwar Ghuloum // this.nativePeer = 0; 1042d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz if (Runtime::Current()->IsActiveTransaction()) { 1043d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz soa.DecodeField(WellKnownClasses::java_lang_Thread_nativePeer)->SetLong<true>(opeer_, 0); 1044d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz } else { 1045d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz soa.DecodeField(WellKnownClasses::java_lang_Thread_nativePeer)->SetLong<false>(opeer_, 0); 1046d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz } 1047cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers Dbg::PostThreadDeath(self); 104802b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 1049cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers // Thread.join() is implemented as an Object.wait() on the Thread.lock object. Signal anyone 1050cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers // who is waiting. 10512dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* lock = 10522dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers soa.DecodeField(WellKnownClasses::java_lang_Thread_lock)->GetObject(opeer_); 1053038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes // (This conditional is only needed for tests, where Thread.lock won't have been set.) 1054c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier if (lock != nullptr) { 1055c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier SirtRef<mirror::Object> sirt_obj(self, lock); 1056c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier ObjectLock<mirror::Object> locker(self, &sirt_obj); 105705f3057d6a4d23d712092ccd36a531590bff323bIan Rogers locker.Notify(); 10585f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 10595f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 1060120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 1061120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // On thread detach, all monitors entered with JNI MonitorEnter are automatically exited. 10620aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (jni_env_ != nullptr) { 106383c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier jni_env_->monitors.VisitRoots(MonitorExitVisitor, self, 0, kRootVMInternal); 1064120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 1065c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes} 106602b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 1067c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott HughesThread::~Thread() { 10680aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (jni_env_ != nullptr && jpeer_ != nullptr) { 1069dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier // If pthread_create fails we don't have a jni env here. 1070cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers jni_env_->DeleteGlobalRef(jpeer_); 10710aded089f565008ba5908e395e5914ca4f91f2deDave Allison jpeer_ = nullptr; 1072dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier } 10730aded089f565008ba5908e395e5914ca4f91f2deDave Allison opeer_ = nullptr; 1074dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier 10751efa0a9d6cd5f5b40b8a21d39f1103a3610250eeAlexei Zavjalov bool initialized = (jni_env_ != nullptr); // Did Thread::Init run? 10761efa0a9d6cd5f5b40b8a21d39f1103a3610250eeAlexei Zavjalov if (initialized) { 10771efa0a9d6cd5f5b40b8a21d39f1103a3610250eeAlexei Zavjalov delete jni_env_; 10781efa0a9d6cd5f5b40b8a21d39f1103a3610250eeAlexei Zavjalov jni_env_ = nullptr; 10791efa0a9d6cd5f5b40b8a21d39f1103a3610250eeAlexei Zavjalov } 1080dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier CHECK_NE(GetState(), kRunnable); 10810aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK_NE(ReadFlag(kCheckpointRequest), true); 10820aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(checkpoint_functions_[0] == nullptr); 10830aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(checkpoint_functions_[1] == nullptr); 10840aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(checkpoint_functions_[2] == nullptr); 10850aded089f565008ba5908e395e5914ca4f91f2deDave Allison 1086dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier // We may be deleting a still born thread. 1087dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier SetStateUnsafe(kTerminated); 108885d1545e985ac689db4bad7849880e843707c862Elliott Hughes 108985d1545e985ac689db4bad7849880e843707c862Elliott Hughes delete wait_cond_; 109085d1545e985ac689db4bad7849880e843707c862Elliott Hughes delete wait_mutex_; 109185d1545e985ac689db4bad7849880e843707c862Elliott Hughes 10920aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (long_jump_context_ != nullptr) { 1093c928de90ad22ecdf83c18a07008409595f13d3b1Ian Rogers delete long_jump_context_; 1094c928de90ad22ecdf83c18a07008409595f13d3b1Ian Rogers } 1095475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes 10961efa0a9d6cd5f5b40b8a21d39f1103a3610250eeAlexei Zavjalov if (initialized) { 10971efa0a9d6cd5f5b40b8a21d39f1103a3610250eeAlexei Zavjalov CleanupCpu(); 10981efa0a9d6cd5f5b40b8a21d39f1103a3610250eeAlexei Zavjalov } 10991efa0a9d6cd5f5b40b8a21d39f1103a3610250eeAlexei Zavjalov 1100475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes delete debug_invoke_req_; 110161b7f1b05d1fe12d4009316263bf990903e4edffSebastien Hertz delete single_step_control_; 1102725a957985171d712d5c048cc3d00ff14968784bjeffhao delete instrumentation_stack_; 1103899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes delete name_; 11045ce4b178d2483df679e7f718e379305e5d42a300Jeff Hao delete stack_trace_sample_; 1105d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes 1106cf58d4adf461eb9b8e84baa8019054c88cd8acc6Hiroshi Yamauchi Runtime::Current()->GetHeap()->RevokeThreadLocalBuffers(this); 1107cf58d4adf461eb9b8e84baa8019054c88cd8acc6Hiroshi Yamauchi 1108d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes TearDownAlternateSignalStack(); 1109c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes} 1110c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes 1111cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogersvoid Thread::HandleUncaughtExceptions(ScopedObjectAccess& soa) { 1112accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes if (!IsExceptionPending()) { 1113accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes return; 1114accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes } 1115cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedLocalRef<jobject> peer(jni_env_, soa.AddLocalReference<jobject>(opeer_)); 1116cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedThreadStateChange tsc(this, kNative); 1117120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 1118accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Get and clear the exception. 1119120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedLocalRef<jthrowable> exception(jni_env_, jni_env_->ExceptionOccurred()); 1120120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->ExceptionClear(); 1121accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1122accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // If the thread has its own handler, use that. 1123120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedLocalRef<jobject> handler(jni_env_, 1124cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers jni_env_->GetObjectField(peer.get(), 1125120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers WellKnownClasses::java_lang_Thread_uncaughtHandler)); 11260aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (handler.get() == nullptr) { 1127accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Otherwise use the thread group's default handler. 1128cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers handler.reset(jni_env_->GetObjectField(peer.get(), WellKnownClasses::java_lang_Thread_group)); 1129accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes } 1130accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1131accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Call the handler. 1132120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->CallVoidMethod(handler.get(), 1133120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers WellKnownClasses::java_lang_Thread$UncaughtExceptionHandler_uncaughtException, 1134cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers peer.get(), exception.get()); 1135accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1136accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // If the handler threw, clear that exception too. 1137120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->ExceptionClear(); 1138a215526d5c789cbef0f81a1f9aba22541a841ccaElliott Hughes} 1139a215526d5c789cbef0f81a1f9aba22541a841ccaElliott Hughes 1140cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogersvoid Thread::RemoveFromThreadGroup(ScopedObjectAccess& soa) { 11414514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom // this.group.removeThread(this); 11424514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom // group can be null if we're in the compiler or a test. 11432dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* ogroup = soa.DecodeField(WellKnownClasses::java_lang_Thread_group)->GetObject(opeer_); 11440aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (ogroup != nullptr) { 1145cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedLocalRef<jobject> group(soa.Env(), soa.AddLocalReference<jobject>(ogroup)); 1146cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedLocalRef<jobject> peer(soa.Env(), soa.AddLocalReference<jobject>(opeer_)); 1147cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedThreadStateChange tsc(soa.Self(), kNative); 1148120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->CallVoidMethod(group.get(), WellKnownClasses::java_lang_ThreadGroup_removeThread, 1149cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers peer.get()); 11504514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom } 11514514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom} 1152accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1153408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogerssize_t Thread::NumSirtReferences() { 1154a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers size_t count = 0; 115540381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom for (StackIndirectReferenceTable* cur = top_sirt_; cur; cur = cur->GetLink()) { 1156a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers count += cur->NumberOfReferences(); 1157a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers } 1158a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers return count; 1159a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers} 1160a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers 1161cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogersbool Thread::SirtContains(jobject obj) const { 1162ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers StackReference<mirror::Object>* sirt_entry = 1163ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers reinterpret_cast<StackReference<mirror::Object>*>(obj); 116440381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom for (StackIndirectReferenceTable* cur = top_sirt_; cur; cur = cur->GetLink()) { 116540381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom if (cur->Contains(sirt_entry)) { 1166a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers return true; 1167a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers } 1168a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers } 11690399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // JNI code invoked from portable code uses shadow frames rather than the SIRT. 11700399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return managed_stack_.ShadowFramesContain(sirt_entry); 117128f1a147d77ec772db98bed890b50a9ddcff2365TDYa} 117228f1a147d77ec772db98bed890b50a9ddcff2365TDYa 117389bb1449bbef1863b12dfa3813ab7c78be94316fMathieu Chartiervoid Thread::SirtVisitRoots(RootCallback* visitor, void* arg, uint32_t thread_id) { 117440381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom for (StackIndirectReferenceTable* cur = top_sirt_; cur; cur = cur->GetLink()) { 11758dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao size_t num_refs = cur->NumberOfReferences(); 11760aded089f565008ba5908e395e5914ca4f91f2deDave Allison for (size_t j = 0; j < num_refs; ++j) { 11772dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* object = cur->GetReference(j); 1178423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (object != nullptr) { 1179815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier mirror::Object* old_obj = object; 1180815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier visitor(&object, arg, thread_id, kRootNativeStack); 1181815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier if (old_obj != object) { 1182815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier cur->SetReference(j, object); 1183423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier } 11845e73f9c8990819054f8e0a60061ee8beff1e024aBrian Carlstrom } 11858dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao } 11868dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao } 11878dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao} 11888dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao 11892dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersmirror::Object* Thread::DecodeJObject(jobject obj) const { 119081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers Locks::mutator_lock_->AssertSharedHeld(this); 11910aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (obj == nullptr) { 11920aded089f565008ba5908e395e5914ca4f91f2deDave Allison return nullptr; 1193408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1194408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers IndirectRef ref = reinterpret_cast<IndirectRef>(obj); 1195408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers IndirectRefKind kind = GetIndirectRefKind(ref); 11962dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* result; 11974f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers // The "kinds" below are sorted by the frequency we expect to encounter them. 11984f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (kind == kLocal) { 11994f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers IndirectReferenceTable& locals = jni_env_->locals; 12004f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers result = const_cast<mirror::Object*>(locals.Get(ref)); 12014f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers } else if (kind == kSirtOrInvalid) { 1202ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers // TODO: make stack indirect reference table lookup more efficient. 1203ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers // Check if this is a local reference in the SIRT. 12044f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (LIKELY(SirtContains(obj))) { 1205ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers // Read from SIRT. 1206ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers result = reinterpret_cast<StackReference<mirror::Object>*>(obj)->AsMirrorPtr(); 1207c2dc62d1c9241dfe880a81698713c314b13aa63fElliott Hughes } else if (Runtime::Current()->GetJavaVM()->work_around_app_jni_bugs) { 1208408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Assume an invalid local reference is actually a direct pointer. 12092dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers result = reinterpret_cast<mirror::Object*>(obj); 1210408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } else { 1211a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes result = kInvalidIndirectRefObject; 1212408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 12134f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers } else if (kind == kGlobal) { 12144f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers JavaVMExt* vm = Runtime::Current()->GetJavaVM(); 12154f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers IndirectReferenceTable& globals = vm->globals; 1216b8a0b94735f188bc739e4c55479c37699006b881Ian Rogers ReaderMutexLock mu(const_cast<Thread*>(this), vm->globals_lock); 12174f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers result = const_cast<mirror::Object*>(globals.Get(ref)); 12184f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers } else { 12194f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers DCHECK_EQ(kind, kWeakGlobal); 1220c11d9b8870de5f860b13c84003ade7b3f3125a52Mathieu Chartier result = Runtime::Current()->GetJavaVM()->DecodeWeakGlobal(const_cast<Thread*>(this), ref); 12214f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (result == kClearedJniWeakGlobal) { 12220aded089f565008ba5908e395e5914ca4f91f2deDave Allison // This is a special case where it's okay to return nullptr. 1223e8c48db6bb507d7fa20c78481c58c23be0045f67Mathieu Chartier return nullptr; 12244f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers } 1225408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1226408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers 12270aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (UNLIKELY(result == nullptr)) { 12280aded089f565008ba5908e395e5914ca4f91f2deDave Allison JniAbortF(nullptr, "use of deleted %s %p", ToStr<IndirectRefKind>(kind).c_str(), obj); 1229a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes } else { 12304e30541a92381fb280cd0be9a1763b713ee4d64cMathieu Chartier if (result != kInvalidIndirectRefObject) { 12314e30541a92381fb280cd0be9a1763b713ee4d64cMathieu Chartier VerifyObject(result); 1232a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes } 1233408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1234408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers return result; 1235408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers} 1236408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers 123781d425b0b232962441616f8b14f73620bffef5e5Ian Rogers// Implements java.lang.Thread.interrupted. 123881d425b0b232962441616f8b14f73620bffef5e5Ian Rogersbool Thread::Interrupted() { 123950b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers MutexLock mu(Thread::Current(), *wait_mutex_); 124081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers bool interrupted = interrupted_; 124181d425b0b232962441616f8b14f73620bffef5e5Ian Rogers interrupted_ = false; 124281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers return interrupted; 124381d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 124481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 124581d425b0b232962441616f8b14f73620bffef5e5Ian Rogers// Implements java.lang.Thread.isInterrupted. 124681d425b0b232962441616f8b14f73620bffef5e5Ian Rogersbool Thread::IsInterrupted() { 124750b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers MutexLock mu(Thread::Current(), *wait_mutex_); 124881d425b0b232962441616f8b14f73620bffef5e5Ian Rogers return interrupted_; 124981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 125081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 125181d425b0b232962441616f8b14f73620bffef5e5Ian Rogersvoid Thread::Interrupt() { 1252c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers Thread* self = Thread::Current(); 1253c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers MutexLock mu(self, *wait_mutex_); 125481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers if (interrupted_) { 125581d425b0b232962441616f8b14f73620bffef5e5Ian Rogers return; 125681d425b0b232962441616f8b14f73620bffef5e5Ian Rogers } 125781d425b0b232962441616f8b14f73620bffef5e5Ian Rogers interrupted_ = true; 1258c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers NotifyLocked(self); 125981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 126081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 126181d425b0b232962441616f8b14f73620bffef5e5Ian Rogersvoid Thread::Notify() { 1262c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers Thread* self = Thread::Current(); 1263c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers MutexLock mu(self, *wait_mutex_); 1264c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers NotifyLocked(self); 126581d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 126681d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 1267c604d731730b43231f63040c8db1d58304da0cf3Ian Rogersvoid Thread::NotifyLocked(Thread* self) { 12680aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (wait_monitor_ != nullptr) { 1269c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers wait_cond_->Signal(self); 127081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers } 127181d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 127281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 12730399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass CountStackDepthVisitor : public StackVisitor { 12749b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao public: 127593ba893c20532990a430741e0a97212900094e8cBrian Carlstrom explicit CountStackDepthVisitor(Thread* thread) 1276b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 12770aded089f565008ba5908e395e5914ca4f91f2deDave Allison : StackVisitor(thread, nullptr), 127808fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes depth_(0), skip_depth_(0), skipping_(true) {} 1279d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 1280b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 128129f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes // We want to skip frames up to and including the exception's constructor. 12829086572fa809d1a19d886b467e4da3ce42016982Ian Rogers // Note we also skip the frame if it doesn't have a method (namely the callee 12839086572fa809d1a19d886b467e4da3ce42016982Ian Rogers // save frame) 1284ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = GetMethod(); 12850399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (skipping_ && !m->IsRuntimeMethod() && 12862dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers !mirror::Throwable::GetJavaLangThrowable()->IsAssignableFrom(m->GetDeclaringClass())) { 128729f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes skipping_ = false; 128829f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 128929f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes if (!skipping_) { 12900399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (!m->IsRuntimeMethod()) { // Ignore runtime frames (in particular callee save). 12916b0870dfaaa2e69a900ad7ed88e4e1d3697445aaIan Rogers ++depth_; 12926b0870dfaaa2e69a900ad7ed88e4e1d3697445aaIan Rogers } 129329f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } else { 129429f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes ++skip_depth_; 129529f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 1296530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 12979b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 12989b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 12999b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao int GetDepth() const { 1300aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers return depth_; 13019b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 13029b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 130329f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes int GetSkipDepth() const { 130429f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes return skip_depth_; 130529f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 130629f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes 13079b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao private: 1308aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers uint32_t depth_; 130929f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes uint32_t skip_depth_; 131029f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes bool skipping_; 13119b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao}; 13129b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 13130399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass BuildInternalStackTraceVisitor : public StackVisitor { 13149b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao public: 13157a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers explicit BuildInternalStackTraceVisitor(Thread* self, Thread* thread, int skip_depth) 13160aded089f565008ba5908e395e5914ca4f91f2deDave Allison : StackVisitor(thread, nullptr), self_(self), 13170aded089f565008ba5908e395e5914ca4f91f2deDave Allison skip_depth_(skip_depth), count_(0), dex_pc_trace_(nullptr), method_trace_(nullptr) {} 1318283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers 13191f5393447b9f45be7918042d9ee7b521376de866Ian Rogers bool Init(int depth) 1320b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1321aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Allocate method trace with an extra slot that will hold the PC trace 13222dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::ObjectArray<mirror::Object> > 13231f5393447b9f45be7918042d9ee7b521376de866Ian Rogers method_trace(self_, 13242dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers Runtime::Current()->GetClassLinker()->AllocObjectArray<mirror::Object>(self_, 13252dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers depth + 1)); 13260aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (method_trace.get() == nullptr) { 1327283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers return false; 1328726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes } 13292dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::IntArray* dex_pc_trace = mirror::IntArray::Alloc(self_, depth); 13300aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (dex_pc_trace == nullptr) { 1331283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers return false; 1332726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes } 1333aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Save PC trace in last element of method trace, also places it into the 1334aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // object graph. 1335d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz // We are called from native: use non-transactional mode. 1336d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz method_trace->Set<false>(depth, dex_pc_trace); 13370399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Set the Object*s and assert that no thread suspension is now possible. 133852673ffae0025d86f4023735581f19ebcc477487Ian Rogers const char* last_no_suspend_cause = 13391f5393447b9f45be7918042d9ee7b521376de866Ian Rogers self_->StartAssertNoThreadSuspension("Building internal stack trace"); 13400aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(last_no_suspend_cause == nullptr) << last_no_suspend_cause; 13410399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers method_trace_ = method_trace.get(); 13420399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers dex_pc_trace_ = dex_pc_trace; 1343283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers return true; 13449b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 13459b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 13460399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers virtual ~BuildInternalStackTraceVisitor() { 13470aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (method_trace_ != nullptr) { 13480aded089f565008ba5908e395e5914ca4f91f2deDave Allison self_->EndAssertNoThreadSuspension(nullptr); 134952673ffae0025d86f4023735581f19ebcc477487Ian Rogers } 13500399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 13519b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 1352b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 13530aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (method_trace_ == nullptr || dex_pc_trace_ == nullptr) { 13547934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom return true; // We're probably trying to fillInStackTrace for an OutOfMemoryError. 1355726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes } 135629f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes if (skip_depth_ > 0) { 135729f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes skip_depth_--; 1358530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 135929f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 1360ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = GetMethod(); 13610399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (m->IsRuntimeMethod()) { 13620399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return true; // Ignore runtime frames (in particular callee save). 13636b0870dfaaa2e69a900ad7ed88e4e1d3697445aaIan Rogers } 1364d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz // TODO dedup this code. 1365d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz if (Runtime::Current()->IsActiveTransaction()) { 1366d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz method_trace_->Set<true>(count_, m); 1367d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz dex_pc_trace_->Set<true>(count_, m->IsProxyMethod() ? DexFile::kDexNoIndex : GetDexPc()); 1368d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz } else { 1369d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz method_trace_->Set<false>(count_, m); 1370d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz dex_pc_trace_->Set<false>(count_, m->IsProxyMethod() ? DexFile::kDexNoIndex : GetDexPc()); 1371d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz } 1372aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers ++count_; 1373530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 13749b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 13759b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 13762dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::Object>* GetInternalStackTrace() const { 13770399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return method_trace_; 13789b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 13799b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 13809b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao private: 13811f5393447b9f45be7918042d9ee7b521376de866Ian Rogers Thread* const self_; 138229f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes // How many more frames to skip. 138329f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes int32_t skip_depth_; 13840399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Current position down stack trace. 1385aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers uint32_t count_; 13860399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Array of dex PC values. 13872dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::IntArray* dex_pc_trace_; 13880399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // An array of the methods on the stack, the last entry is a reference to the PC trace. 13892dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::Object>* method_trace_; 13909b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao}; 13919b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 139264b6d145fa53b8dfb07a8fc2426af13f155d5a4dIan Rogersjobject Thread::CreateInternalStackTrace(const ScopedObjectAccessUnchecked& soa) const { 1393aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Compute depth of stack 13947a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers CountStackDepthVisitor count_visitor(const_cast<Thread*>(this)); 13950399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers count_visitor.WalkStack(); 13969b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao int32_t depth = count_visitor.GetDepth(); 139729f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes int32_t skip_depth = count_visitor.GetSkipDepth(); 13984417536522fd2a9d8215d8672331984769c9520bShih-wei Liao 13991f5393447b9f45be7918042d9ee7b521376de866Ian Rogers // Build internal stack trace. 14007a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers BuildInternalStackTraceVisitor build_trace_visitor(soa.Self(), const_cast<Thread*>(this), 14017a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers skip_depth); 14021f5393447b9f45be7918042d9ee7b521376de866Ian Rogers if (!build_trace_visitor.Init(depth)) { 14030aded089f565008ba5908e395e5914ca4f91f2deDave Allison return nullptr; // Allocation failed. 1404283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers } 14050399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers build_trace_visitor.WalkStack(); 14062dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::Object>* trace = build_trace_visitor.GetInternalStackTrace(); 14077a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers if (kIsDebugBuild) { 14087a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers for (int32_t i = 0; i < trace->GetLength(); ++i) { 14090aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(trace->Get(i) != nullptr); 14107a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers } 14117a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers } 14127a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers return soa.AddLocalReference<jobjectArray>(trace); 1413aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers} 1414aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 141501158d7a57c8321370667a6045220237d16e0da8Elliott HughesjobjectArray Thread::InternalStackTraceToStackTraceElementArray(JNIEnv* env, jobject internal, 141601158d7a57c8321370667a6045220237d16e0da8Elliott Hughes jobjectArray output_array, int* stack_depth) { 1417aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Transition into runnable state to work on Object*/Array* 141800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(env); 1419aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Decode the internal stack trace into the depth, method trace and PC trace 1420530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier int32_t depth = soa.Decode<mirror::ObjectArray<mirror::Object>*>(internal)->GetLength() - 1; 1421aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 1422aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 1423aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 142401158d7a57c8321370667a6045220237d16e0da8Elliott Hughes jobjectArray result; 1425530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier 14260aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (output_array != nullptr) { 142701158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Reuse the array we were given. 142801158d7a57c8321370667a6045220237d16e0da8Elliott Hughes result = output_array; 142901158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // ...adjusting the number of frames we'll write to not exceed the array length. 1430530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier const int32_t traces_length = 1431530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier soa.Decode<mirror::ObjectArray<mirror::StackTraceElement>*>(result)->GetLength(); 1432530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier depth = std::min(depth, traces_length); 143301158d7a57c8321370667a6045220237d16e0da8Elliott Hughes } else { 143401158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Create java_trace array and place in local reference table 1435530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier mirror::ObjectArray<mirror::StackTraceElement>* java_traces = 1436530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier class_linker->AllocStackTraceElementArray(soa.Self(), depth); 14370aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (java_traces == nullptr) { 14380aded089f565008ba5908e395e5914ca4f91f2deDave Allison return nullptr; 143930646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 144000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers result = soa.AddLocalReference<jobjectArray>(java_traces); 144101158d7a57c8321370667a6045220237d16e0da8Elliott Hughes } 144201158d7a57c8321370667a6045220237d16e0da8Elliott Hughes 14430aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (stack_depth != nullptr) { 144401158d7a57c8321370667a6045220237d16e0da8Elliott Hughes *stack_depth = depth; 144501158d7a57c8321370667a6045220237d16e0da8Elliott Hughes } 144655df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao 14479b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao for (int32_t i = 0; i < depth; ++i) { 1448530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier mirror::ObjectArray<mirror::Object>* method_trace = 1449530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier soa.Decode<mirror::ObjectArray<mirror::Object>*>(internal); 1450aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Prepare parameters for StackTraceElement(String cls, String method, String file, int line) 1451ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* method = down_cast<mirror::ArtMethod*>(method_trace->Get(i)); 1452590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier MethodHelper mh(method); 1453228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao int32_t line_number; 14547c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom SirtRef<mirror::String> class_name_object(soa.Self(), nullptr); 14557c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom SirtRef<mirror::String> source_name_object(soa.Self(), nullptr); 1456228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao if (method->IsProxyMethod()) { 1457228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao line_number = -1; 1458228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao class_name_object.reset(method->GetDeclaringClass()->GetName()); 1459228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao // source_name_object intentionally left null for proxy methods 1460228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao } else { 1461228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao mirror::IntArray* pc_trace = down_cast<mirror::IntArray*>(method_trace->Get(depth)); 1462228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao uint32_t dex_pc = pc_trace->Get(i); 1463228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao line_number = mh.GetLineNumFromDexPC(dex_pc); 1464228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao // Allocate element, potentially triggering GC 1465228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao // TODO: reuse class_name_object via Class::name_? 1466228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao const char* descriptor = mh.GetDeclaringClassDescriptor(); 14677c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom CHECK(descriptor != nullptr); 1468228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao std::string class_name(PrettyDescriptor(descriptor)); 1469228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao class_name_object.reset(mirror::String::AllocFromModifiedUtf8(soa.Self(), class_name.c_str())); 14707c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom if (class_name_object.get() == nullptr) { 14717c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom return nullptr; 1472228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao } 1473228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao const char* source_file = mh.GetDeclaringClassSourceFile(); 14747c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom if (source_file != nullptr) { 14757c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom source_name_object.reset(mirror::String::AllocFromModifiedUtf8(soa.Self(), source_file)); 14767c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom if (source_name_object.get() == nullptr) { 14777c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom return nullptr; 14787c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom } 1479228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao } 148040381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom } 1481486013193c94b4321414c28ce9251911e14a0599Ian Rogers const char* method_name = mh.GetName(); 14820aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(method_name != nullptr); 14832dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::String> method_name_object(soa.Self(), 14842dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::String::AllocFromModifiedUtf8(soa.Self(), 14852dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers method_name)); 14860aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (method_name_object.get() == nullptr) { 14870aded089f565008ba5908e395e5914ca4f91f2deDave Allison return nullptr; 14886d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers } 1489590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier mirror::StackTraceElement* obj = mirror::StackTraceElement::Alloc( 1490590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier soa.Self(), class_name_object, method_name_object, source_name_object, line_number); 14910aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (obj == nullptr) { 14920aded089f565008ba5908e395e5914ca4f91f2deDave Allison return nullptr; 149330646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 1494d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz // We are called from native: use non-transactional mode. 1495d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz soa.Decode<mirror::ObjectArray<mirror::StackTraceElement>*>(result)->Set<false>(i, obj); 149655df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao } 1497aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers return result; 149855df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao} 149955df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao 150062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::ThrowNewExceptionF(const ThrowLocation& throw_location, 150162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* exception_class_descriptor, const char* fmt, ...) { 1502a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes va_list args; 1503a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes va_start(args, fmt); 150462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNewExceptionV(throw_location, exception_class_descriptor, 150562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers fmt, args); 1506a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes va_end(args); 15074a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes} 15084a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes 150962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::ThrowNewExceptionV(const ThrowLocation& throw_location, 151062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* exception_class_descriptor, 151162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* fmt, va_list ap) { 15124a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes std::string msg; 15134a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes StringAppendV(&msg, fmt, ap); 151462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNewException(throw_location, exception_class_descriptor, msg.c_str()); 15155cb5ad27944efb08d4556b3c0d362302e37e832bElliott Hughes} 151637f7a40f6789bb287f287a9af00777af9d6428eeElliott Hughes 151762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::ThrowNewException(const ThrowLocation& throw_location, const char* exception_class_descriptor, 151862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* msg) { 15198d7672e476a526aa6205a008b5a06c8216342ac6Mathieu Chartier // Callers should either clear or call ThrowNewWrappedException. 15208d7672e476a526aa6205a008b5a06c8216342ac6Mathieu Chartier AssertNoPendingExceptionForNewException(msg); 152162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNewWrappedException(throw_location, exception_class_descriptor, msg); 152262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers} 152362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 152462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::ThrowNewWrappedException(const ThrowLocation& throw_location, 152562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* exception_class_descriptor, 152662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* msg) { 152762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK_EQ(this, Thread::Current()); 152862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Ensure we don't forget arguments over object allocation. 152962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::Object> saved_throw_this(this, throw_location.GetThis()); 1530ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom SirtRef<mirror::ArtMethod> saved_throw_method(this, throw_location.GetMethod()); 153162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Ignore the cause throw location. TODO: should we report this as a re-throw? 15320aded089f565008ba5908e395e5914ca4f91f2deDave Allison SirtRef<mirror::Throwable> cause(this, GetException(nullptr)); 153362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ClearException(); 153462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers Runtime* runtime = Runtime::Current(); 1535a4f94740f9d66b21f4bcd3a225c434aa29cfa323Elliott Hughes 1536c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier mirror::ClassLoader* cl = nullptr; 1537c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier if (saved_throw_method.get() != nullptr) { 1538c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier cl = saved_throw_method.get()->GetDeclaringClass()->GetClassLoader(); 153962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 1540590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier SirtRef<mirror::ClassLoader> class_loader(this, cl); 154162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::Class> 15429837939678bb5dcba178e5fb00ed59b5d14c8d9bIan Rogers exception_class(this, runtime->GetClassLinker()->FindClass(this, exception_class_descriptor, 1543590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier class_loader)); 15440aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (UNLIKELY(exception_class.get() == nullptr)) { 154530646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes CHECK(IsExceptionPending()); 154662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers LOG(ERROR) << "No exception class " << PrettyDescriptor(exception_class_descriptor); 154730646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes return; 154830646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 154962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 1550c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier if (UNLIKELY(!runtime->GetClassLinker()->EnsureInitialized(exception_class, true, true))) { 155162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK(IsExceptionPending()); 155262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return; 155362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 155462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK(!runtime->IsStarted() || exception_class->IsThrowableClass()); 155562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::Throwable> exception(this, 155662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers down_cast<mirror::Throwable*>(exception_class->AllocObject(this))); 155762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 1558590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier // If we couldn't allocate the exception, throw the pre-allocated out of memory exception. 1559590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier if (exception.get() == nullptr) { 1560c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier ThrowLocation gc_safe_throw_location(saved_throw_this.get(), saved_throw_method.get(), 1561c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier throw_location.GetDexPc()); 1562c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier SetException(gc_safe_throw_location, Runtime::Current()->GetPreAllocatedOutOfMemoryError()); 1563590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier return; 1564590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier } 1565590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier 156662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Choose an appropriate constructor and set up the arguments. 156762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* signature; 15680177e53ea521ad58b70c305700dab32f1ac773b7Ian Rogers const char* shorty; 15690aded089f565008ba5908e395e5914ca4f91f2deDave Allison SirtRef<mirror::String> msg_string(this, nullptr); 15700aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (msg != nullptr) { 157162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Ensure we remember this and the method over the String allocation. 157262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers msg_string.reset(mirror::String::AllocFromModifiedUtf8(this, msg)); 15730aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (UNLIKELY(msg_string.get() == nullptr)) { 157462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CHECK(IsExceptionPending()); // OOME. 157562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return; 157662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 15770aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (cause.get() == nullptr) { 15780177e53ea521ad58b70c305700dab32f1ac773b7Ian Rogers shorty = "VL"; 157962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers signature = "(Ljava/lang/String;)V"; 1580ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom } else { 15810177e53ea521ad58b70c305700dab32f1ac773b7Ian Rogers shorty = "VLL"; 158262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers signature = "(Ljava/lang/String;Ljava/lang/Throwable;)V"; 158362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 158462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 15850aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (cause.get() == nullptr) { 15860177e53ea521ad58b70c305700dab32f1ac773b7Ian Rogers shorty = "V"; 158762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers signature = "()V"; 158862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 15890177e53ea521ad58b70c305700dab32f1ac773b7Ian Rogers shorty = "VL"; 159062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers signature = "(Ljava/lang/Throwable;)V"; 1591ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom } 1592ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom } 1593ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* exception_init_method = 159462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception_class->FindDeclaredDirectMethod("<init>", signature); 159562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 15960aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(exception_init_method != nullptr) << "No <init>" << signature << " in " 159762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers << PrettyDescriptor(exception_class_descriptor); 159862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 159962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (UNLIKELY(!runtime->IsStarted())) { 160062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Something is trying to throw an exception without a started runtime, which is the common 160162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // case in the compiler. We won't be able to invoke the constructor of the exception, so set 160262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // the exception fields directly. 16030aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (msg != nullptr) { 160462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception->SetDetailMessage(msg_string.get()); 160562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 16060aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (cause.get() != nullptr) { 160762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception->SetCause(cause.get()); 160862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 160962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation gc_safe_throw_location(saved_throw_this.get(), saved_throw_method.get(), 161062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers throw_location.GetDexPc()); 161162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SetException(gc_safe_throw_location, exception.get()); 161262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 16130177e53ea521ad58b70c305700dab32f1ac773b7Ian Rogers ArgArray args(shorty, strlen(shorty)); 1614ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers args.Append(exception.get()); 16150aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (msg != nullptr) { 1616ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers args.Append(msg_string.get()); 161762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 16180aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (cause.get() != nullptr) { 1619ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers args.Append(cause.get()); 162062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 162162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers JValue result; 16220177e53ea521ad58b70c305700dab32f1ac773b7Ian Rogers exception_init_method->Invoke(this, args.GetArray(), args.GetNumBytes(), &result, shorty); 162362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (LIKELY(!IsExceptionPending())) { 162462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation gc_safe_throw_location(saved_throw_this.get(), saved_throw_method.get(), 162562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers throw_location.GetDexPc()); 162662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SetException(gc_safe_throw_location, exception.get()); 162762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 162830646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 1629a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes} 1630a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes 16312ced6a534157d5d963693346904389c19775d2daElliott Hughesvoid Thread::ThrowOutOfMemoryError(const char* msg) { 16322ced6a534157d5d963693346904389c19775d2daElliott Hughes LOG(ERROR) << StringPrintf("Throwing OutOfMemoryError \"%s\"%s", 16332ced6a534157d5d963693346904389c19775d2daElliott Hughes msg, (throwing_OutOfMemoryError_ ? " (recursive case)" : "")); 163462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation throw_location = GetCurrentLocationForThrow(); 1635726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes if (!throwing_OutOfMemoryError_) { 1636726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes throwing_OutOfMemoryError_ = true; 163762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNewException(throw_location, "Ljava/lang/OutOfMemoryError;", msg); 163833e15bcb4c0873cbce9d039fbc9bc7f4cf257765Ian Rogers throwing_OutOfMemoryError_ = false; 1639418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes } else { 16407934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom Dump(LOG(ERROR)); // The pre-allocated OOME has no stack, so help out and log one. 164162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SetException(throw_location, Runtime::Current()->GetPreAllocatedOutOfMemoryError()); 1642418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes } 164379082e367845bbd68ec44ef2ddd1be8ef0e1550fElliott Hughes} 164479082e367845bbd68ec44ef2ddd1be8ef0e1550fElliott Hughes 1645498508c1187dc07d3eae5476784cde20f5224d93Elliott HughesThread* Thread::CurrentFromGdb() { 1646accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes return Thread::Current(); 1647accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes} 1648accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1649accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughesvoid Thread::DumpFromGdb() const { 16506b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom std::ostringstream ss; 16516b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom Dump(ss); 1652955724179c6c739524f610023287f56b24dc31deElliott Hughes std::string str(ss.str()); 16536b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom // log to stderr for debugging command line processes 16546b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom std::cerr << str; 16556b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom#ifdef HAVE_ANDROID_OS 16566b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom // log to logcat for debugging frameworks processes 16576b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom LOG(INFO) << str; 16586b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom#endif 1659accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes} 1660accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 166198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughesstruct EntryPointInfo { 166298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes uint32_t offset; 166398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes const char* name; 166498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes}; 1665848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers#define INTERPRETER_ENTRY_POINT_INFO(x) { INTERPRETER_ENTRYPOINT_OFFSET(x).Uint32Value(), #x } 1666848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers#define JNI_ENTRY_POINT_INFO(x) { JNI_ENTRYPOINT_OFFSET(x).Uint32Value(), #x } 1667848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers#define PORTABLE_ENTRY_POINT_INFO(x) { PORTABLE_ENTRYPOINT_OFFSET(x).Uint32Value(), #x } 1668848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers#define QUICK_ENTRY_POINT_INFO(x) { QUICK_ENTRYPOINT_OFFSET(x).Uint32Value(), #x } 166998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughesstatic const EntryPointInfo gThreadEntryPointInfo[] = { 1670848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers INTERPRETER_ENTRY_POINT_INFO(pInterpreterToInterpreterBridge), 1671848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers INTERPRETER_ENTRY_POINT_INFO(pInterpreterToCompiledCodeBridge), 1672848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers JNI_ENTRY_POINT_INFO(pDlsymLookup), 167388474b416eb257078e590bf9bc7957cee604a186Jeff Hao PORTABLE_ENTRY_POINT_INFO(pPortableImtConflictTrampoline), 1674848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers PORTABLE_ENTRY_POINT_INFO(pPortableResolutionTrampoline), 1675848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers PORTABLE_ENTRY_POINT_INFO(pPortableToInterpreterBridge), 1676848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pAllocArray), 1677bb8f0ab736b61db8f543e433859272e83f96ee9bHiroshi Yamauchi QUICK_ENTRY_POINT_INFO(pAllocArrayResolved), 1678848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pAllocArrayWithAccessCheck), 1679848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pAllocObject), 1680be1ca55db3362f5b100c4c65da5342fd299520bbHiroshi Yamauchi QUICK_ENTRY_POINT_INFO(pAllocObjectResolved), 1681be1ca55db3362f5b100c4c65da5342fd299520bbHiroshi Yamauchi QUICK_ENTRY_POINT_INFO(pAllocObjectInitialized), 1682848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pAllocObjectWithAccessCheck), 1683848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pCheckAndAllocArray), 1684848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pCheckAndAllocArrayWithAccessCheck), 1685848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pInstanceofNonTrivial), 1686848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pCheckCast), 16877655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pInitializeStaticStorage), 1688848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pInitializeTypeAndVerifyAccess), 1689848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pInitializeType), 1690848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pResolveString), 16917655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pSet32Instance), 16927655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pSet32Static), 16937655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pSet64Instance), 16947655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pSet64Static), 16957655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pSetObjInstance), 16967655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pSetObjStatic), 16977655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pGet32Instance), 16987655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pGet32Static), 16997655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pGet64Instance), 17007655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pGet64Static), 17017655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pGetObjInstance), 17027655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pGetObjStatic), 1703a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers QUICK_ENTRY_POINT_INFO(pAputObjectWithNullAndBoundCheck), 1704a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers QUICK_ENTRY_POINT_INFO(pAputObjectWithBoundCheck), 1705a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers QUICK_ENTRY_POINT_INFO(pAputObject), 1706848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pHandleFillArrayData), 17077655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodStart), 17087655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodStartSynchronized), 17097655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodEnd), 17107655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodEndSynchronized), 17117655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodEndWithReference), 17127655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodEndWithReferenceSynchronized), 17136cbd271d061707dfe70e29c16bb97b6acbd3c533Ian Rogers QUICK_ENTRY_POINT_INFO(pQuickGenericJniTrampoline), 1714848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pLockObject), 1715848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pUnlockObject), 17167655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pCmpgDouble), 17177655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pCmpgFloat), 17187655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pCmplDouble), 17197655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pCmplFloat), 17207655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pFmod), 17217655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pSqrt), 17227655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pL2d), 17237655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pFmodf), 17247655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pL2f), 17257655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pD2iz), 17267655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pF2iz), 17277655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pIdivmod), 17287655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pD2l), 17297655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pF2l), 17307655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pLdiv), 1731a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers QUICK_ENTRY_POINT_INFO(pLmod), 17327655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pLmul), 17337655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pShlLong), 17347655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pShrLong), 17357655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pUshrLong), 17367655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pIndexOf), 17377655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pMemcmp16), 17387655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pStringCompareTo), 17397655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pMemcpy), 174088474b416eb257078e590bf9bc7957cee604a186Jeff Hao QUICK_ENTRY_POINT_INFO(pQuickImtConflictTrampoline), 1741848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pQuickResolutionTrampoline), 1742848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pQuickToInterpreterBridge), 17437655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pInvokeDirectTrampolineWithAccessCheck), 17447655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pInvokeInterfaceTrampolineWithAccessCheck), 17457655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pInvokeStaticTrampolineWithAccessCheck), 17467655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pInvokeSuperTrampolineWithAccessCheck), 17477655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pInvokeVirtualTrampolineWithAccessCheck), 1748848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pCheckSuspend), 1749848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pTestSuspend), 17507655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pDeliverException), 1751848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pThrowArrayBounds), 1752848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pThrowDivZero), 1753848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pThrowNoSuchMethod), 1754848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pThrowNullPointer), 1755848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pThrowStackOverflow), 175698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes}; 17577655f29fabc0a12765de828914a18314382e5a35Ian Rogers#undef QUICK_ENTRY_POINT_INFO 175898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes 175928fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughesvoid Thread::DumpThreadOffset(std::ostream& os, uint32_t offset, size_t size_of_pointers) { 17607934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom CHECK_EQ(size_of_pointers, 4U); // TODO: support 64-bit targets. 176198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes 1762f69863b3039fc621ff4250e262d2a024d5e79ec8Brian Carlstrom#define DO_THREAD_OFFSET(x) \ 1763f69863b3039fc621ff4250e262d2a024d5e79ec8Brian Carlstrom if (offset == static_cast<uint32_t>(OFFSETOF_VOLATILE_MEMBER(Thread, x))) { \ 1764f69863b3039fc621ff4250e262d2a024d5e79ec8Brian Carlstrom os << # x; \ 1765f69863b3039fc621ff4250e262d2a024d5e79ec8Brian Carlstrom return; \ 1766f69863b3039fc621ff4250e262d2a024d5e79ec8Brian Carlstrom } 1767474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers DO_THREAD_OFFSET(state_and_flags_); 176898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(card_table_); 176998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(exception_); 177007ec8e17c978e3bda0202693e6432b56349a5867Ian Rogers DO_THREAD_OFFSET(opeer_); 177198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(jni_env_); 177298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(self_); 177398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(stack_end_); 177498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(suspend_count_); 1775d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers DO_THREAD_OFFSET(thin_lock_thread_id_); 17767934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom // DO_THREAD_OFFSET(top_of_managed_stack_); 17777934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom // DO_THREAD_OFFSET(top_of_managed_stack_pc_); 177898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(top_sirt_); 177928fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes#undef DO_THREAD_OFFSET 178098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes 178198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes size_t entry_point_count = arraysize(gThreadEntryPointInfo); 17827655f29fabc0a12765de828914a18314382e5a35Ian Rogers CHECK_EQ(entry_point_count * size_of_pointers, 1783848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers sizeof(InterpreterEntryPoints) + sizeof(JniEntryPoints) + sizeof(PortableEntryPoints) + 1784848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers sizeof(QuickEntryPoints)); 1785848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers uint32_t expected_offset = OFFSETOF_MEMBER(Thread, interpreter_entrypoints_); 178698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes for (size_t i = 0; i < entry_point_count; ++i) { 1787474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers CHECK_EQ(gThreadEntryPointInfo[i].offset, expected_offset) << gThreadEntryPointInfo[i].name; 178898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes expected_offset += size_of_pointers; 178998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes if (gThreadEntryPointInfo[i].offset == offset) { 179098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes os << gThreadEntryPointInfo[i].name; 179198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes return; 179298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes } 179398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes } 179498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes os << offset; 179528fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes} 179628fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes 179794d6df471a406a03bb1afba8ca3ae9c0fbf366b5jeffhaovoid Thread::QuickDeliverException() { 179862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Get exception from thread. 179962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation throw_location; 180062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Throwable* exception = GetException(&throw_location); 18010aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(exception != nullptr); 180228ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers // Don't leave exception visible while we try to find the handler, which may cause class 1803d07986fad0d08cdf05505cf9230714a2cf0dd9aeElliott Hughes // resolution. 180428ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers ClearException(); 180562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers bool is_deoptimization = (exception == reinterpret_cast<mirror::Throwable*>(-1)); 180628ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (kDebugExceptionDelivery) { 180762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (!is_deoptimization) { 180862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::String* msg = exception->GetDetailMessage(); 18090aded089f565008ba5908e395e5914ca4f91f2deDave Allison std::string str_msg(msg != nullptr ? msg->ToModifiedUtf8() : ""); 181062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DumpStack(LOG(INFO) << "Delivering exception: " << PrettyTypeOf(exception) 181162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers << ": " << str_msg << "\n"); 181262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 181362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DumpStack(LOG(INFO) << "Deoptimizing: "); 181462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 181528ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 1816d45a1f5d1dd5bc9badfab3a8aee90c934d9f2227Sebastien Hertz CatchFinder catch_finder(this, throw_location, exception, is_deoptimization); 1817d45a1f5d1dd5bc9badfab3a8aee90c934d9f2227Sebastien Hertz catch_finder.FindCatch(); 1818d45a1f5d1dd5bc9badfab3a8aee90c934d9f2227Sebastien Hertz catch_finder.UpdateInstrumentationStack(); 18190399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers catch_finder.DoLongJump(); 18209a8a8889418e09bf2d4ae3f683fbb40a71c3c8f4Ian Rogers LOG(FATAL) << "UNREACHABLE"; 1821bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers} 1822bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 1823bdb0391258abc54bf77c676e36847d28a783bfe5Ian RogersContext* Thread::GetLongJumpContext() { 182485d1545e985ac689db4bad7849880e843707c862Elliott Hughes Context* result = long_jump_context_; 18250aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (result == nullptr) { 1826bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers result = Context::Create(); 18270399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } else { 18280aded089f565008ba5908e395e5914ca4f91f2deDave Allison long_jump_context_ = nullptr; // Avoid context being shared. 18296702243ea2332b566d8e8b871cc9db0906d835adMathieu Chartier result->Reset(); 18301a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 1831bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers return result; 18321a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao} 18331a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 183462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersstruct CurrentMethodVisitor : public StackVisitor { 183562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CurrentMethodVisitor(Thread* thread, Context* context) 183662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 18370aded089f565008ba5908e395e5914ca4f91f2deDave Allison : StackVisitor(thread, context), this_object_(nullptr), method_(nullptr), dex_pc_(0) {} 183862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers virtual bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1839ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = GetMethod(); 184062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (m->IsRuntimeMethod()) { 184162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Continue if this is a runtime method. 184262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return true; 184362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 18440aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (context_ != nullptr) { 184562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers this_object_ = GetThisObject(); 18460399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 184762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers method_ = m; 184862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers dex_pc_ = GetDexPc(); 184962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return false; 185062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 185162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Object* this_object_; 1852ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* method_; 185362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers uint32_t dex_pc_; 185462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers}; 18550399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 1856ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrommirror::ArtMethod* Thread::GetCurrentMethod(uint32_t* dex_pc) const { 18570aded089f565008ba5908e395e5914ca4f91f2deDave Allison CurrentMethodVisitor visitor(const_cast<Thread*>(this), nullptr); 18580399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers visitor.WalkStack(false); 18590aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (dex_pc != nullptr) { 18600399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers *dex_pc = visitor.dex_pc_; 1861d07986fad0d08cdf05505cf9230714a2cf0dd9aeElliott Hughes } 18620399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return visitor.method_; 1863ee0d3fb2fbd736484fe8c3177a4e965ea86d1c65TDYa} 186433dc7717cd16592bcc825350bea6305be9eb2ea1jeffhao 186562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian RogersThrowLocation Thread::GetCurrentLocationForThrow() { 186662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers Context* context = GetLongJumpContext(); 186762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CurrentMethodVisitor visitor(this, context); 186862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers visitor.WalkStack(false); 186962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ReleaseLongJumpContext(context); 187062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return ThrowLocation(visitor.this_object_, visitor.method_, visitor.dex_pc_); 187162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers} 187262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 18732dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersbool Thread::HoldsLock(mirror::Object* object) { 18740aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (object == nullptr) { 18755f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes return false; 18765f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 1877d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers return object->GetLockOwnerThreadId() == thin_lock_thread_id_; 18785f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes} 18795f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes 188040e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogers// RootVisitor parameters are: (const Object* obj, size_t vreg, const StackVisitor* visitor). 188140e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogerstemplate <typename RootVisitor> 18820399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass ReferenceMapVisitor : public StackVisitor { 1883d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers public: 18847a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers ReferenceMapVisitor(Thread* thread, Context* context, const RootVisitor& visitor) 1885b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 18867a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers : StackVisitor(thread, context), visitor_(visitor) {} 1887d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 1888b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 18896a4be3a6226cec645cf905dd352e44f7968a7fa4Brian Carlstrom if (false) { 18900399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers LOG(INFO) << "Visiting stack roots in " << PrettyMethod(GetMethod()) 18910399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers << StringPrintf("@ PC:%04x", GetDexPc()); 18926a4be3a6226cec645cf905dd352e44f7968a7fa4Brian Carlstrom } 18930399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ShadowFrame* shadow_frame = GetCurrentShadowFrame(); 18940aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (shadow_frame != nullptr) { 1895ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = shadow_frame->GetMethod(); 1896ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa size_t num_regs = shadow_frame->NumberOfVRegs(); 1897ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa if (m->IsNative() || shadow_frame->HasReferenceArray()) { 1898ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa // SIRT for JNI or References for interpreter. 1899ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa for (size_t reg = 0; reg < num_regs; ++reg) { 19002dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* ref = shadow_frame->GetVRegReference(reg); 1901423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (ref != nullptr) { 1902815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier mirror::Object* new_ref = ref; 1903815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier visitor_(&new_ref, reg, this); 1904423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (new_ref != ref) { 1905423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier shadow_frame->SetVRegReference(reg, new_ref); 1906423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier } 1907ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 1908ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 1909ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } else { 1910ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa // Java method. 1911ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa // Portable path use DexGcMap and store in Method.native_gc_map_. 1912ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa const uint8_t* gc_map = m->GetNativeGcMap(); 19137c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom CHECK(gc_map != nullptr) << PrettyMethod(m); 19148171fc34bf74ed0df02385787d916bc13eb7f160Vladimir Marko verifier::DexPcToReferenceMap dex_gc_map(gc_map); 1915ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa uint32_t dex_pc = GetDexPc(); 1916ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa const uint8_t* reg_bitmap = dex_gc_map.FindBitMap(dex_pc); 19170aded089f565008ba5908e395e5914ca4f91f2deDave Allison DCHECK(reg_bitmap != nullptr); 1918ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa num_regs = std::min(dex_gc_map.RegWidth() * 8, num_regs); 1919ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa for (size_t reg = 0; reg < num_regs; ++reg) { 1920ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa if (TestBitmap(reg, reg_bitmap)) { 19212dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* ref = shadow_frame->GetVRegReference(reg); 1922423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (ref != nullptr) { 1923815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier mirror::Object* new_ref = ref; 1924815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier visitor_(&new_ref, reg, this); 1925423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (new_ref != ref) { 1926423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier shadow_frame->SetVRegReference(reg, new_ref); 1927423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier } 1928ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 1929ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 1930ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 1931ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 19320399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } else { 1933ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = GetMethod(); 19340399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Process register map (which native and runtime methods don't have) 1935640495bd1aebcd0b429d59f62b57d0c984b2d8c6Ian Rogers if (!m->IsNative() && !m->IsRuntimeMethod() && !m->IsProxyMethod()) { 19360c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const uint8_t* native_gc_map = m->GetNativeGcMap(); 19370aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(native_gc_map != nullptr) << PrettyMethod(m); 19380c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers mh_.ChangeMethod(m); 19390c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const DexFile::CodeItem* code_item = mh_.GetCodeItem(); 19400aded089f565008ba5908e395e5914ca4f91f2deDave Allison DCHECK(code_item != nullptr) << PrettyMethod(m); // Can't be nullptr or how would we compile its instructions? 19410c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers NativePcOffsetToReferenceMap map(native_gc_map); 19420399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers size_t num_regs = std::min(map.RegWidth() * 8, 19430399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers static_cast<size_t>(code_item->registers_size_)); 19440c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers if (num_regs > 0) { 19450c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const uint8_t* reg_bitmap = map.FindBitMap(GetNativePcOffset()); 19460aded089f565008ba5908e395e5914ca4f91f2deDave Allison DCHECK(reg_bitmap != nullptr); 19471809a72a66d245ae598582d658b93a24ac3bf01eIan Rogers const VmapTable vmap_table(m->GetVmapTable()); 19480c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t core_spills = m->GetCoreSpillMask(); 19490c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t fp_spills = m->GetFpSpillMask(); 19500c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers size_t frame_size = m->GetFrameSizeInBytes(); 19510c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // For all dex registers in the bitmap 1952ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod** cur_quick_frame = GetCurrentQuickFrame(); 19530aded089f565008ba5908e395e5914ca4f91f2deDave Allison DCHECK(cur_quick_frame != nullptr); 19540c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers for (size_t reg = 0; reg < num_regs; ++reg) { 19550c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // Does this register hold a reference? 19560c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers if (TestBitmap(reg, reg_bitmap)) { 19570c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t vmap_offset; 19581809a72a66d245ae598582d658b93a24ac3bf01eIan Rogers if (vmap_table.IsInContext(reg, kReferenceVReg, &vmap_offset)) { 1959423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier int vmap_reg = vmap_table.ComputeRegister(core_spills, vmap_offset, kReferenceVReg); 1960815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier // This is sound as spilled GPRs will be word sized (ie 32 or 64bit). 1961815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier mirror::Object** ref_addr = reinterpret_cast<mirror::Object**>(GetGPRAddress(vmap_reg)); 1962815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier if (*ref_addr != nullptr) { 1963815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier visitor_(ref_addr, reg, this); 1964423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier } 19650c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers } else { 1966815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier StackReference<mirror::Object>* ref_addr = 1967815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier reinterpret_cast<StackReference<mirror::Object>*>( 1968815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier GetVRegAddr(cur_quick_frame, code_item, core_spills, fp_spills, frame_size, 1969815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier reg)); 1970815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier mirror::Object* ref = ref_addr->AsMirrorPtr(); 1971423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (ref != nullptr) { 1972815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier mirror::Object* new_ref = ref; 1973815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier visitor_(&new_ref, reg, this); 1974423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (ref != new_ref) { 1975815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier ref_addr->Assign(new_ref); 1976423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier } 1977423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier } 19780399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 1979d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 19804f894e385e8ac018f078be75fea0a45696626b15Shih-wei Liao } 1981d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 1982d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 1983d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 1984530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 1985d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 1986d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 1987d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers private: 1988815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier static bool TestBitmap(size_t reg, const uint8_t* reg_vector) { 1989815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier return ((reg_vector[reg / kBitsPerByte] >> (reg % kBitsPerByte)) & 0x01) != 0; 1990d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 1991d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 19926f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier // Visitor for when we visit a root. 199340e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogers const RootVisitor& visitor_; 19946f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 19950c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // A method helper we keep around to avoid dex file/cache re-computations. 19960c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers MethodHelper mh_; 1997d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers}; 1998d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 19996f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartierclass RootCallbackVisitor { 20006f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier public: 200183c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier RootCallbackVisitor(RootCallback* callback, void* arg, uint32_t tid) 200283c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier : callback_(callback), arg_(arg), tid_(tid) {} 20036f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 2004815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier void operator()(mirror::Object** obj, size_t, const StackVisitor*) const { 2005815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier callback_(obj, arg_, tid_, kRootJavaFrame); 20066f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier } 20076f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 20086f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier private: 200983c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier RootCallback* const callback_; 201040e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogers void* const arg_; 201183c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier const uint32_t tid_; 20126f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier}; 20136f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 2014590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartiervoid Thread::SetClassLoaderOverride(mirror::ClassLoader* class_loader_override) { 20154e30541a92381fb280cd0be9a1763b713ee4d64cMathieu Chartier VerifyObject(class_loader_override); 2016590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier class_loader_override_ = class_loader_override; 2017590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier} 2018590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier 201983c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartiervoid Thread::VisitRoots(RootCallback* visitor, void* arg) { 202083c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier uint32_t thread_id = GetThreadId(); 2021423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (opeer_ != nullptr) { 2022815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier visitor(&opeer_, arg, thread_id, kRootThreadObject); 2023cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers } 2024423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (exception_ != nullptr) { 2025815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier visitor(reinterpret_cast<mirror::Object**>(&exception_), arg, thread_id, kRootNativeStack); 2026d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 202762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers throw_location_.VisitRoots(visitor, arg); 2028423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (class_loader_override_ != nullptr) { 2029815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier visitor(reinterpret_cast<mirror::Object**>(&class_loader_override_), arg, thread_id, 2030815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier kRootNativeStack); 203140381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom } 203283c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier jni_env_->locals.VisitRoots(visitor, arg, thread_id, kRootJNILocal); 203383c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier jni_env_->monitors.VisitRoots(visitor, arg, thread_id, kRootJNIMonitor); 203489bb1449bbef1863b12dfa3813ab7c78be94316fMathieu Chartier SirtVisitRoots(visitor, arg, thread_id); 2035d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers // Visit roots on this thread's stack 20360399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers Context* context = GetLongJumpContext(); 203783c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier RootCallbackVisitor visitorToCallback(visitor, arg, thread_id); 20387a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers ReferenceMapVisitor<RootCallbackVisitor> mapper(this, context, visitorToCallback); 20390399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers mapper.WalkStack(); 20400399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ReleaseLongJumpContext(context); 2041423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier for (instrumentation::InstrumentationStackFrame& frame : *GetInstrumentationStack()) { 2042423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (frame.this_object_ != nullptr) { 2043815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier visitor(&frame.this_object_, arg, thread_id, kRootJavaFrame); 204462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 2045423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier DCHECK(frame.method_ != nullptr); 2046815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier visitor(reinterpret_cast<mirror::Object**>(&frame.method_), arg, thread_id, kRootJavaFrame); 204762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 2048410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes} 2049410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes 20504e30541a92381fb280cd0be9a1763b713ee4d64cMathieu Chartierstatic void VerifyRoot(mirror::Object** root, void* /*arg*/, uint32_t /*thread_id*/, 20514e30541a92381fb280cd0be9a1763b713ee4d64cMathieu Chartier RootType /*root_type*/) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 20524e30541a92381fb280cd0be9a1763b713ee4d64cMathieu Chartier VerifyObject(*root); 2053250455229aa0cc07bbd18174efe510bd52631a99jeffhao} 2054250455229aa0cc07bbd18174efe510bd52631a99jeffhao 205504d7aa92bc5548bc4d272b9480614f06248194ccIan Rogersvoid Thread::VerifyStackImpl() { 2056e66ac79b90a12b01b9d67ee9f7f586e638e67fabjeffhao UniquePtr<Context> context(Context::Create()); 205789bb1449bbef1863b12dfa3813ab7c78be94316fMathieu Chartier RootCallbackVisitor visitorToCallback(VerifyRoot, Runtime::Current()->GetHeap(), GetThreadId()); 205804d7aa92bc5548bc4d272b9480614f06248194ccIan Rogers ReferenceMapVisitor<RootCallbackVisitor> mapper(this, context.get(), visitorToCallback); 20590399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers mapper.WalkStack(); 2060250455229aa0cc07bbd18174efe510bd52631a99jeffhao} 2061250455229aa0cc07bbd18174efe510bd52631a99jeffhao 206200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers// Set the stack end to that to be used during a stack overflow 206300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::SetStackEndForStackOverflow() { 20647571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom // During stack overflow we allow use of the full stack. 206500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (stack_end_ == stack_begin_) { 20667571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom // However, we seem to have already extended to use the full stack. 20677571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom LOG(ERROR) << "Need to increase kStackOverflowReservedBytes (currently " 20687571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom << kStackOverflowReservedBytes << ")?"; 20697571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom DumpStack(LOG(ERROR)); 20707571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom LOG(FATAL) << "Recursive stack overflow."; 207100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 207200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 207300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers stack_end_ = stack_begin_; 207400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 207500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 2076e6da9af8dfe0a3e3fbc2be700554f6478380e7b9Mathieu Chartiervoid Thread::SetTlab(byte* start, byte* end) { 2077692fafd9778141fa6ef0048c9569abd7ee0253bfMathieu Chartier DCHECK_LE(start, end); 2078692fafd9778141fa6ef0048c9569abd7ee0253bfMathieu Chartier thread_local_start_ = start; 2079692fafd9778141fa6ef0048c9569abd7ee0253bfMathieu Chartier thread_local_pos_ = thread_local_start_; 2080692fafd9778141fa6ef0048c9569abd7ee0253bfMathieu Chartier thread_local_end_ = end; 2081692fafd9778141fa6ef0048c9569abd7ee0253bfMathieu Chartier thread_local_objects_ = 0; 2082692fafd9778141fa6ef0048c9569abd7ee0253bfMathieu Chartier} 2083692fafd9778141fa6ef0048c9569abd7ee0253bfMathieu Chartier 2084330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughesstd::ostream& operator<<(std::ostream& os, const Thread& thread) { 208500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers thread.ShortDump(os); 2086330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes return os; 2087330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes} 2088330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes 20898daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes} // namespace art 2090