thread.cc revision 65530499a0169b3b0b153008e2d187c9f4939541
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" 35a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes#include "class_linker.h" 362dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "class_linker-inl.h" 37474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers#include "cutils/atomic.h" 38474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers#include "cutils/atomic-inline.h" 3946e251bf7200cc06f5a9a82ee2030e650f5e1443Elliott Hughes#include "debugger.h" 404f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers#include "dex_file-inl.h" 417655f29fabc0a12765de828914a18314382e5a35Ian Rogers#include "entrypoints/entrypoint_utils.h" 420c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers#include "gc_map.h" 431d54e73444e017d3a65234e0f193846f3e27472bIan Rogers#include "gc/accounting/card_table-inl.h" 441d54e73444e017d3a65234e0f193846f3e27472bIan Rogers#include "gc/heap.h" 451d54e73444e017d3a65234e0f193846f3e27472bIan Rogers#include "gc/space/space.h" 465d9173014c1ca09f7249a6b07629aa37778b5f8fJeff Hao#include "invoke_arg_array_builder.h" 47c5f7c91ab89055cffb573fff7e06dbdd860bccedElliott Hughes#include "jni_internal.h" 48ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom#include "mirror/art_field-inl.h" 49ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom#include "mirror/art_method-inl.h" 502dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/class-inl.h" 512dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/class_loader.h" 522dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/object_array-inl.h" 532dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/stack_trace_element.h" 548e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes#include "monitor.h" 556d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers#include "object_utils.h" 569a6bae896a2f003d7216603bf29771d105c10ca4Jesse Wilson#include "reflection.h" 57578bbdc684db8ed68e9fedbc678669d27fa68b6eBrian Carlstrom#include "runtime.h" 5800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers#include "scoped_thread_state_change.h" 5946e251bf7200cc06f5a9a82ee2030e650f5e1443Elliott Hughes#include "ScopedLocalRef.h" 603c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum#include "ScopedUtfChars.h" 611f5393447b9f45be7918042d9ee7b521376de866Ian Rogers#include "sirt_ref.h" 6268e76526e98432625464022cb26f66b9ef6f5af4Elliott Hughes#include "stack.h" 6368e76526e98432625464022cb26f66b9ef6f5af4Elliott Hughes#include "stack_indirect_reference_table.h" 64693ff61274cd2c9b8eb7e68c370f84a911b8ca52Ian Rogers#include "thread-inl.h" 658daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes#include "thread_list.h" 66a09576416788b916095739e43a16917e7948f3a4Elliott Hughes#include "utils.h" 67ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa#include "verifier/dex_gc_map.h" 6862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers#include "verifier/method_verifier.h" 691809a72a66d245ae598582d658b93a24ac3bf01eIan Rogers#include "vmap_table.h" 70eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes#include "well_known_classes.h" 71b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 72b557353b22c728eecbd1c68593b482622c7782a8Carl Shapironamespace art { 73b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 740878d654e7be8c9666579e22522704d8887415ccIan Rogersbool Thread::is_started_ = false; 75b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiropthread_key_t Thread::pthread_key_self_; 760878d654e7be8c9666579e22522704d8887415ccIan RogersConditionVariable* Thread::resume_cond_ = NULL; 77b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 787dc5166ea740359d381097a7ab382c1dd404055fElliott Hughesstatic const char* kThreadNameDuringStartup = "<native thread without managed peer>"; 797dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes 805d76c435082332ef79a22962386fa92a0870e378Ian Rogersvoid Thread::InitCardTable() { 81b3bd5f07884f5a1f2b84224363b1372d7c28d447Elliott Hughes card_table_ = Runtime::Current()->GetHeap()->GetCardTable()->GetBiasedBegin(); 825d76c435082332ef79a22962386fa92a0870e378Ian Rogers} 835d76c435082332ef79a22962386fa92a0870e378Ian Rogers 8499250ba6a2cc72b8894dffa77c1fca5570087e3cElliott Hughes#if !defined(__APPLE__) 853ea0f42467790809fcfc9fc861605d465808090fElliott Hughesstatic void UnimplementedEntryPoint() { 863ea0f42467790809fcfc9fc861605d465808090fElliott Hughes UNIMPLEMENTED(FATAL); 873ea0f42467790809fcfc9fc861605d465808090fElliott Hughes} 8899250ba6a2cc72b8894dffa77c1fca5570087e3cElliott Hughes#endif 893ea0f42467790809fcfc9fc861605d465808090fElliott Hughes 90848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogersvoid InitEntryPoints(InterpreterEntryPoints* ipoints, JniEntryPoints* jpoints, 91848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers PortableEntryPoints* ppoints, QuickEntryPoints* qpoints); 927655f29fabc0a12765de828914a18314382e5a35Ian Rogers 93848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogersvoid Thread::InitTlsEntryPoints() { 947934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom#if !defined(__APPLE__) // The Mac GCC is too old to accept this code. 953ea0f42467790809fcfc9fc861605d465808090fElliott Hughes // Insert a placeholder so we can easily tell if we call an unimplemented entry point. 96848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers uintptr_t* begin = reinterpret_cast<uintptr_t*>(&interpreter_entrypoints_); 977655f29fabc0a12765de828914a18314382e5a35Ian Rogers uintptr_t* end = reinterpret_cast<uintptr_t*>(reinterpret_cast<uint8_t*>(begin) + sizeof(quick_entrypoints_)); 987655f29fabc0a12765de828914a18314382e5a35Ian Rogers for (uintptr_t* it = begin; it != end; ++it) { 997655f29fabc0a12765de828914a18314382e5a35Ian Rogers *it = reinterpret_cast<uintptr_t>(UnimplementedEntryPoint); 1007655f29fabc0a12765de828914a18314382e5a35Ian Rogers } 101848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers begin = reinterpret_cast<uintptr_t*>(&interpreter_entrypoints_); 1027655f29fabc0a12765de828914a18314382e5a35Ian Rogers end = reinterpret_cast<uintptr_t*>(reinterpret_cast<uint8_t*>(begin) + sizeof(portable_entrypoints_)); 1033ea0f42467790809fcfc9fc861605d465808090fElliott Hughes for (uintptr_t* it = begin; it != end; ++it) { 1043ea0f42467790809fcfc9fc861605d465808090fElliott Hughes *it = reinterpret_cast<uintptr_t>(UnimplementedEntryPoint); 1053ea0f42467790809fcfc9fc861605d465808090fElliott Hughes } 10699250ba6a2cc72b8894dffa77c1fca5570087e3cElliott Hughes#endif 107848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers InitEntryPoints(&interpreter_entrypoints_, &jni_entrypoints_, &portable_entrypoints_, 108848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers &quick_entrypoints_); 109c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes} 110c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes 11162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::SetDeoptimizationShadowFrame(ShadowFrame* sf) { 11262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers deoptimization_shadow_frame_ = sf; 1133ea4ec5629613013ad9b0d7a69abdb94491ac46fbuzbee} 1143ea4ec5629613013ad9b0d7a69abdb94491ac46fbuzbee 11562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::SetDeoptimizationReturnValue(const JValue& ret_val) { 116306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers deoptimization_return_value_.SetJ(ret_val.GetJ()); 117306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers} 118306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers 119306057fd278d75bf3794bd5243a3b6652c487d18Ian RogersShadowFrame* Thread::GetAndClearDeoptimizationShadowFrame(JValue* ret_val) { 120306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers ShadowFrame* sf = deoptimization_shadow_frame_; 121306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers deoptimization_shadow_frame_ = NULL; 122306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers ret_val->SetJ(deoptimization_return_value_.GetJ()); 123306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers return sf; 124306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers} 125306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers 126caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstromvoid Thread::InitTid() { 127caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom tid_ = ::art::GetTid(); 128caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom} 129caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom 130caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstromvoid Thread::InitAfterFork() { 1318029cbe626a467b344ff84d86170d757aa12ecd4Elliott Hughes // One thread (us) survived the fork, but we have a new tid so we need to 1328029cbe626a467b344ff84d86170d757aa12ecd4Elliott Hughes // update the value stashed in this Thread*. 133caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom InitTid(); 134caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom} 135caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom 13678128a63b2615744760b7f8ab83df9764a5d4a95Brian Carlstromvoid* Thread::CreateCallback(void* arg) { 13793e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes Thread* self = reinterpret_cast<Thread*>(arg); 138120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime* runtime = Runtime::Current(); 139120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (runtime == NULL) { 140120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << "Thread attaching to non-existent runtime: " << *self; 141120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers return NULL; 142120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 143120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers { 14450b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers // TODO: pass self to MutexLock - requires self to equal Thread::Current(), which is only true 14550b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers // after self->Init(). 14650b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers MutexLock mu(NULL, *Locks::runtime_shutdown_lock_); 147120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Check that if we got here we cannot be shutting down (as shutdown should never have started 148120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // while threads are being born). 149120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers CHECK(!runtime->IsShuttingDown()); 150120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers self->Init(runtime->GetThreadList(), runtime->GetJavaVM()); 151120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime::Current()->EndThreadBirth(); 152120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 15347179f76e3f03fe3eb21dfb081d50733ca316371Elliott Hughes { 15400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(self); 155cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers 156cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers // Copy peer into self, deleting global reference when done. 157cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers CHECK(self->jpeer_ != NULL); 1582dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers self->opeer_ = soa.Decode<mirror::Object*>(self->jpeer_); 159cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers self->GetJniEnv()->DeleteGlobalRef(self->jpeer_); 160cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers self->jpeer_ = NULL; 161cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers 162365c10235438607541fa2259a5fec48061b90bd8Ian Rogers { 1632dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::String> thread_name(self, self->GetThreadName(soa)); 164365c10235438607541fa2259a5fec48061b90bd8Ian Rogers self->SetThreadName(thread_name->ToModifiedUtf8().c_str()); 165365c10235438607541fa2259a5fec48061b90bd8Ian Rogers } 166365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Dbg::PostThreadStart(self); 16793e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 168365c10235438607541fa2259a5fec48061b90bd8Ian Rogers // Invoke the 'run' method of our java.lang.Thread. 1692dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* receiver = self->opeer_; 170365c10235438607541fa2259a5fec48061b90bd8Ian Rogers jmethodID mid = WellKnownClasses::java_lang_Thread_run; 171ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = 172cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers receiver->GetClass()->FindVirtualMethodForVirtualOrInterface(soa.DecodeMethod(mid)); 1735d9173014c1ca09f7249a6b07629aa37778b5f8fJeff Hao JValue result; 1745d9173014c1ca09f7249a6b07629aa37778b5f8fJeff Hao ArgArray arg_array(NULL, 0); 1755d9173014c1ca09f7249a6b07629aa37778b5f8fJeff Hao arg_array.Append(reinterpret_cast<uint32_t>(receiver)); 1766474d190d5604898354ebf767f1944b6e3e9b445Jeff Hao m->Invoke(self, arg_array.GetArray(), arg_array.GetNumBytes(), &result, 'V'); 177365c10235438607541fa2259a5fec48061b90bd8Ian Rogers } 17800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Detach and delete self. 17900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Runtime::Current()->GetThreadList()->Unregister(self); 18093e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 181b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro return NULL; 182b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro} 183b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 1842dd0e2cea360bc9206eb88ecc40d259e796c239dIan RogersThread* Thread::FromManagedThread(const ScopedObjectAccessUnchecked& soa, 1852dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* thread_peer) { 186ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtField* f = soa.DecodeField(WellKnownClasses::java_lang_Thread_nativePeer); 18700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Thread* result = reinterpret_cast<Thread*>(static_cast<uintptr_t>(f->GetInt(thread_peer))); 18800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Sanity check that if we have a result it is either suspended or we hold the thread_list_lock_ 18900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // to stop it from going away. 19081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers if (kIsDebugBuild) { 19181d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(soa.Self(), *Locks::thread_suspend_count_lock_); 19281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers if (result != NULL && !result->IsSuspended()) { 19381d425b0b232962441616f8b14f73620bffef5e5Ian Rogers Locks::thread_list_lock_->AssertHeld(soa.Self()); 19481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers } 19500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 19600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return result; 197761928d24e4e7ed7776b52243eaf9095ad35f448Elliott Hughes} 198761928d24e4e7ed7776b52243eaf9095ad35f448Elliott Hughes 19900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan RogersThread* Thread::FromManagedThread(const ScopedObjectAccessUnchecked& soa, jobject java_thread) { 2002dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers return FromManagedThread(soa, soa.Decode<mirror::Object*>(java_thread)); 20101158d7a57c8321370667a6045220237d16e0da8Elliott Hughes} 20201158d7a57c8321370667a6045220237d16e0da8Elliott Hughes 203ab7b9dcbfc4264a0bc4889c3e463ff88a67f6a30Elliott Hughesstatic size_t FixStackSize(size_t stack_size) { 2047502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // A stack size of zero means "use the default". 205d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes if (stack_size == 0) { 206d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes stack_size = Runtime::Current()->GetDefaultStackSize(); 207d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 20861e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 2096414a97a3c6dc101ae8ebc9480114d0c327e8e8dBrian Carlstrom // Dalvik used the bionic pthread default stack size for native threads, 2106414a97a3c6dc101ae8ebc9480114d0c327e8e8dBrian Carlstrom // so include that here to support apps that expect large native stacks. 2116414a97a3c6dc101ae8ebc9480114d0c327e8e8dBrian Carlstrom stack_size += 1 * MB; 2126414a97a3c6dc101ae8ebc9480114d0c327e8e8dBrian Carlstrom 2137502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // It's not possible to request a stack smaller than the system-defined PTHREAD_STACK_MIN. 2147502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes if (stack_size < PTHREAD_STACK_MIN) { 2157502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes stack_size = PTHREAD_STACK_MIN; 2167502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes } 2177502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 2187502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // It's likely that callers are trying to ensure they have at least a certain amount of 2197502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // stack space, so we should add our reserved space on top of what they requested, rather 2207502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // than implicitly take it away from them. 2217502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes stack_size += Thread::kStackOverflowReservedBytes; 2227502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 2237502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // Some systems require the stack size to be a multiple of the system page size, so round up. 2247502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes stack_size = RoundUp(stack_size, kPageSize); 2257502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 2267502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes return stack_size; 2277502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes} 2287502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 229120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogersvoid Thread::CreateNativeThread(JNIEnv* env, jobject java_peer, size_t stack_size, bool is_daemon) { 230dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier CHECK(java_peer != NULL); 231120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self = static_cast<JNIEnvExt*>(env)->self; 232120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime* runtime = Runtime::Current(); 233dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier 234120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Atomically start the birth of the thread ensuring the runtime isn't shutting down. 235120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers bool thread_start_during_shutdown = false; 236365c10235438607541fa2259a5fec48061b90bd8Ian Rogers { 237120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers MutexLock mu(self, *Locks::runtime_shutdown_lock_); 238120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (runtime->IsShuttingDown()) { 239120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers thread_start_during_shutdown = true; 240120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } else { 241120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers runtime->StartThreadBirth(); 242120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 24300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 244120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (thread_start_during_shutdown) { 245120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedLocalRef<jclass> error_class(env, env->FindClass("java/lang/InternalError")); 246120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers env->ThrowNew(error_class.get(), "Thread starting during runtime shutdown"); 247120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers return; 248120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 249120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 250120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* child_thread = new Thread(is_daemon); 251120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Use global JNI ref to hold peer live while child thread starts. 252cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers child_thread->jpeer_ = env->NewGlobalRef(java_peer); 253120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers stack_size = FixStackSize(stack_size); 254120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 2553c50a4b4ba6d7d9369ee9a0bd6d30bf4c9c79bb0Anwar Ghuloum // Thread.start is synchronized, so we know that nativePeer is 0, and know that we're not racing to 256120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // assign it. 2573c50a4b4ba6d7d9369ee9a0bd6d30bf4c9c79bb0Anwar Ghuloum env->SetIntField(java_peer, WellKnownClasses::java_lang_Thread_nativePeer, 258120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers reinterpret_cast<jint>(child_thread)); 25900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 26000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers pthread_t new_pthread; 26100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers pthread_attr_t attr; 26200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_PTHREAD_CALL(pthread_attr_init, (&attr), "new thread"); 26300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_PTHREAD_CALL(pthread_attr_setdetachstate, (&attr, PTHREAD_CREATE_DETACHED), "PTHREAD_CREATE_DETACHED"); 26400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_PTHREAD_CALL(pthread_attr_setstacksize, (&attr, stack_size), stack_size); 265120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers int pthread_create_result = pthread_create(&new_pthread, &attr, Thread::CreateCallback, child_thread); 26600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_PTHREAD_CALL(pthread_attr_destroy, (&attr), "new thread"); 26700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 268120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (pthread_create_result != 0) { 26900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // pthread_create(3) failed, so clean up. 2709efc3e03982f042c3ce67cc2c64dbe0f0986119bBrian Carlstrom { 271120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers MutexLock mu(self, *Locks::runtime_shutdown_lock_); 272120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers runtime->EndThreadBirth(); 273120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 274120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Manually delete the global reference since Thread::Init will not have been run. 275cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers env->DeleteGlobalRef(child_thread->jpeer_); 276cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers child_thread->jpeer_ = NULL; 277120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers delete child_thread; 278120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers child_thread = NULL; 279120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // TODO: remove from thread group? 2803c50a4b4ba6d7d9369ee9a0bd6d30bf4c9c79bb0Anwar Ghuloum env->SetIntField(java_peer, WellKnownClasses::java_lang_Thread_nativePeer, 0); 281120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers { 2829efc3e03982f042c3ce67cc2c64dbe0f0986119bBrian Carlstrom std::string msg(StringPrintf("pthread_create (%s stack) failed: %s", 2839efc3e03982f042c3ce67cc2c64dbe0f0986119bBrian Carlstrom PrettySize(stack_size).c_str(), strerror(pthread_create_result))); 284120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedObjectAccess soa(env); 285120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers soa.Self()->ThrowOutOfMemoryError(msg.c_str()); 2869efc3e03982f042c3ce67cc2c64dbe0f0986119bBrian Carlstrom } 287365c10235438607541fa2259a5fec48061b90bd8Ian Rogers } 28893e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes} 28961e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 290120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogersvoid Thread::Init(ThreadList* thread_list, JavaVMExt* java_vm) { 291462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // This function does all the initialization that must be run by the native thread it applies to. 292462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // (When we create a new thread from managed code, we allocate the Thread* in Thread::Create so 293462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // we can handshake with the corresponding native thread when it's ready.) Check this native 294462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // thread hasn't been through here already... 295cac6cc72c3331257fa6437b36a131e5d551e2f3cElliott Hughes CHECK(Thread::Current() == NULL); 296d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes SetUpAlternateSignalStack(); 29793e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes InitCpu(); 298848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers InitTlsEntryPoints(); 2995d76c435082332ef79a22962386fa92a0870e378Ian Rogers InitCardTable(); 30001ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers InitTid(); 301120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Set pthread_self_ ahead of pthread_setspecific, that makes Thread::Current function, this 302120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // avoids pthread_self_ ever being invalid when discovered from Thread::Current(). 3030d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes pthread_self_ = pthread_self(); 3040878d654e7be8c9666579e22522704d8887415ccIan Rogers CHECK(is_started_); 3056a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes CHECK_PTHREAD_CALL(pthread_setspecific, (Thread::pthread_key_self_, this), "attach self"); 306120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers DCHECK_EQ(Thread::Current(), this); 307a5780dad67556297c8ca5f2608c53b193e6c4514Elliott Hughes 308cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers thin_lock_id_ = thread_list->AllocThreadId(this); 309120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers InitStackHwm(); 3105fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 311120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_ = new JNIEnvExt(this, java_vm); 312120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers thread_list->Register(this); 31393e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes} 31493e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 315664bebf92eb2151b9b570ccd42ac4b6056c3ea9cMathieu ChartierThread* Thread::Attach(const char* thread_name, bool as_daemon, jobject thread_group, 316664bebf92eb2151b9b570ccd42ac4b6056c3ea9cMathieu Chartier bool create_peer) { 317120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self; 318120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime* runtime = Runtime::Current(); 319120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (runtime == NULL) { 320120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << "Thread attaching to non-existent runtime: " << thread_name; 321120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers return NULL; 322120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 323120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers { 324120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers MutexLock mu(NULL, *Locks::runtime_shutdown_lock_); 325120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (runtime->IsShuttingDown()) { 326120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << "Thread attaching while runtime is shutting down: " << thread_name; 327120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers return NULL; 328120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } else { 329120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime::Current()->StartThreadBirth(); 330120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers self = new Thread(as_daemon); 331120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers self->Init(runtime->GetThreadList(), runtime->GetJavaVM()); 332120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime::Current()->EndThreadBirth(); 333120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 334120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 3355fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 336dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier CHECK_NE(self->GetState(), kRunnable); 337dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier self->SetState(kNative); 338726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes 339cac6cc72c3331257fa6437b36a131e5d551e2f3cElliott Hughes // If we're the main thread, ClassLinker won't be created until after we're attached, 340cac6cc72c3331257fa6437b36a131e5d551e2f3cElliott Hughes // so that thread needs a two-stage attach. Regular threads don't need this hack. 341d9c67be7c116875d96b31e640ad47d587b205605Elliott Hughes // In the compiler, all threads need this hack, because no-one's going to be getting 342d9c67be7c116875d96b31e640ad47d587b205605Elliott Hughes // a native peer! 343664bebf92eb2151b9b570ccd42ac4b6056c3ea9cMathieu Chartier if (create_peer) { 344462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes self->CreatePeer(thread_name, as_daemon, thread_group); 34506e3ad4a651c2c58dba5e865cd06d2f98462bf1dElliott Hughes } else { 34606e3ad4a651c2c58dba5e865cd06d2f98462bf1dElliott Hughes // These aren't necessary, but they improve diagnostics for unit tests & command-line tools. 34722869a9026a08b544eca4cefd67386d347e30d2cElliott Hughes if (thread_name != NULL) { 34822869a9026a08b544eca4cefd67386d347e30d2cElliott Hughes self->name_->assign(thread_name); 34922869a9026a08b544eca4cefd67386d347e30d2cElliott Hughes ::art::SetThreadName(thread_name); 35022869a9026a08b544eca4cefd67386d347e30d2cElliott Hughes } 35136e0a955e48e9357bff1eab783e493107ebfff62Ian Rogers } 352cac6cc72c3331257fa6437b36a131e5d551e2f3cElliott Hughes 3535fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes return self; 3545fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes} 3555fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 356365c10235438607541fa2259a5fec48061b90bd8Ian Rogersvoid Thread::CreatePeer(const char* name, bool as_daemon, jobject thread_group) { 357365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Runtime* runtime = Runtime::Current(); 358365c10235438607541fa2259a5fec48061b90bd8Ian Rogers CHECK(runtime->IsStarted()); 3595fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes JNIEnv* env = jni_env_; 3605fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 361462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes if (thread_group == NULL) { 362365c10235438607541fa2259a5fec48061b90bd8Ian Rogers thread_group = runtime->GetMainThreadGroup(); 363462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes } 364726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes ScopedLocalRef<jobject> thread_name(env, env->NewStringUTF(name)); 3658daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes jint thread_priority = GetNativePriority(); 3665fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes jboolean thread_is_daemon = as_daemon; 3675fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 368eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes ScopedLocalRef<jobject> peer(env, env->AllocObject(WellKnownClasses::java_lang_Thread)); 369dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier if (peer.get() == NULL) { 370dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier CHECK(IsExceptionPending()); 371dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier return; 3725d4bdc29737a693027daaf6ed3f0792368eb4baeIan Rogers } 373cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers { 374cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedObjectAccess soa(this); 3752dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers opeer_ = soa.Decode<mirror::Object*>(peer.get()); 376cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers } 377eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes env->CallNonvirtualVoidMethod(peer.get(), 378eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes WellKnownClasses::java_lang_Thread, 379eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes WellKnownClasses::java_lang_Thread_init, 380365c10235438607541fa2259a5fec48061b90bd8Ian Rogers thread_group, thread_name.get(), thread_priority, thread_is_daemon); 38100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers AssertNoPendingException(); 382d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 383120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self = this; 384120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers DCHECK_EQ(self, Thread::Current()); 3853c50a4b4ba6d7d9369ee9a0bd6d30bf4c9c79bb0Anwar Ghuloum jni_env_->SetIntField(peer.get(), WellKnownClasses::java_lang_Thread_nativePeer, 386120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers reinterpret_cast<jint>(self)); 387120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 388120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedObjectAccess soa(self); 3892dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::String> peer_thread_name(soa.Self(), GetThreadName(soa)); 39000fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom if (peer_thread_name.get() == NULL) { 39100fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom // The Thread constructor should have set the Thread.name to a 39200fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom // non-null value. However, because we can run without code 39300fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom // available (in the compiler, in tests), we manually assign the 39400fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom // fields the constructor should have set. 395dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier soa.DecodeField(WellKnownClasses::java_lang_Thread_daemon)-> 396cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers SetBoolean(opeer_, thread_is_daemon); 397dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier soa.DecodeField(WellKnownClasses::java_lang_Thread_group)-> 3982dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SetObject(opeer_, soa.Decode<mirror::Object*>(thread_group)); 399dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier soa.DecodeField(WellKnownClasses::java_lang_Thread_name)-> 4002dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SetObject(opeer_, soa.Decode<mirror::Object*>(thread_name.get())); 401dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier soa.DecodeField(WellKnownClasses::java_lang_Thread_priority)-> 402cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers SetInt(opeer_, thread_priority); 40300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers peer_thread_name.reset(GetThreadName(soa)); 40400fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom } 405225f5a1df25241babd16cdba54056b9e2cd166a2Elliott Hughes // 'thread_name' may have been null, so don't trust 'peer_thread_name' to be non-null. 40600fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom if (peer_thread_name.get() != NULL) { 407899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes SetThreadName(peer_thread_name->ToModifiedUtf8().c_str()); 40800fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom } 40961e019d291583029c01b61b93bea750f2b663c37Carl Shapiro} 41061e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 411899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughesvoid Thread::SetThreadName(const char* name) { 412899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes name_->assign(name); 413899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes ::art::SetThreadName(name); 414899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes Dbg::DdmSendThreadNotification(this, CHUNK_TYPE("THNM")); 415899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes} 416899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes 417be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughesvoid Thread::InitStackHwm() { 418e188419b971936086a188843378375f5ced13724Elliott Hughes void* stack_base; 419e188419b971936086a188843378375f5ced13724Elliott Hughes size_t stack_size; 420120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers GetThreadStack(pthread_self_, stack_base, stack_size); 42136ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 42236ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // TODO: include this in the thread dumps; potentially useful in SIGQUIT output? 423e188419b971936086a188843378375f5ced13724Elliott Hughes VLOG(threads) << StringPrintf("Native stack is at %p (%s)", stack_base, PrettySize(stack_size).c_str()); 424e188419b971936086a188843378375f5ced13724Elliott Hughes 425e188419b971936086a188843378375f5ced13724Elliott Hughes stack_begin_ = reinterpret_cast<byte*>(stack_base); 426e188419b971936086a188843378375f5ced13724Elliott Hughes stack_size_ = stack_size; 42736ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 428932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers if (stack_size_ <= kStackOverflowReservedBytes) { 4293d30d9b09c16542d41554aad9f46ec9109ba5cb5Elliott Hughes LOG(FATAL) << "Attempt to attach a thread with a too-small stack (" << stack_size_ << " bytes)"; 430be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 431449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes 432e188419b971936086a188843378375f5ced13724Elliott Hughes // TODO: move this into the Linux GetThreadStack implementation. 433e188419b971936086a188843378375f5ced13724Elliott Hughes#if !defined(__APPLE__) 43436ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // If we're the main thread, check whether we were run with an unlimited stack. In that case, 43536ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // glibc will have reported a 2GB stack for our 32-bit process, and our stack overflow detection 43636ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // will be broken because we'll die long before we get close to 2GB. 437120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers bool is_main_thread = (::art::GetTid() == getpid()); 438120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (is_main_thread) { 43936ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes rlimit stack_limit; 44036ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes if (getrlimit(RLIMIT_STACK, &stack_limit) == -1) { 44136ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes PLOG(FATAL) << "getrlimit(RLIMIT_STACK) failed"; 44236ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes } 44336ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes if (stack_limit.rlim_cur == RLIM_INFINITY) { 44436ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // Find the default stack size for new threads... 44536ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes pthread_attr_t default_attributes; 44636ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes size_t default_stack_size; 44736ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_init, (&default_attributes), "default stack size query"); 44836ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_getstacksize, (&default_attributes, &default_stack_size), 44936ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes "default stack size query"); 45036ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_destroy, (&default_attributes), "default stack size query"); 45136ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 45236ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // ...and use that as our limit. 45336ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes size_t old_stack_size = stack_size_; 45436ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes stack_size_ = default_stack_size; 45536ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes stack_begin_ += (old_stack_size - stack_size_); 456faf4ba01738400f418b45c4323aa9e8e6b6ba2a0Elliott Hughes VLOG(threads) << "Limiting unlimited stack (reported as " << PrettySize(old_stack_size) << ")" 457faf4ba01738400f418b45c4323aa9e8e6b6ba2a0Elliott Hughes << " to " << PrettySize(stack_size_) 458faf4ba01738400f418b45c4323aa9e8e6b6ba2a0Elliott Hughes << " with base " << reinterpret_cast<void*>(stack_begin_); 45936ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes } 46036ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes } 461e188419b971936086a188843378375f5ced13724Elliott Hughes#endif 46236ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 463932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // Set stack_end_ to the bottom of the stack saving space of stack overflows 464932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers ResetDefaultStackEnd(); 465449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes 466449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes // Sanity check. 467449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes int stack_variable; 468398f64b5805246765b699839b439e18c0dfbf2eeElliott Hughes CHECK_GT(&stack_variable, reinterpret_cast<void*>(stack_end_)); 469be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes} 470be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 47100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::ShortDump(std::ostream& os) const { 47200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers os << "Thread["; 47300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (GetThinLockId() != 0) { 47400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // If we're in kStarting, we won't have a thin lock id or tid yet. 47500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers os << GetThinLockId() 47600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << ",tid=" << GetTid() << ','; 477e0918556e7551de638870dcad3f2023f94f85a50Elliott Hughes } 478474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers os << GetState() 47900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << ",Thread*=" << this 480cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers << ",peer=" << opeer_ 48100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << ",\"" << *name_ << "\"" 48200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << "]"; 483d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes} 484d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 48500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::Dump(std::ostream& os) const { 48600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DumpState(os); 48700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DumpStack(os); 48800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 48900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 4902dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersmirror::String* Thread::GetThreadName(const ScopedObjectAccessUnchecked& soa) const { 491ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtField* f = soa.DecodeField(WellKnownClasses::java_lang_Thread_name); 4922dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers return (opeer_ != NULL) ? reinterpret_cast<mirror::String*>(f->GetObject(opeer_)) : NULL; 493fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes} 494fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes 495ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughesvoid Thread::GetThreadName(std::string& name) const { 496ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes name.assign(*name_); 497ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes} 498ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes 49957dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Haouint64_t Thread::GetCpuMicroTime() const { 50057dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao#if defined(HAVE_POSIX_CLOCKS) 50157dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao clockid_t cpu_clock_id; 50257dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao pthread_getcpuclockid(pthread_self_, &cpu_clock_id); 50357dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao timespec now; 50457dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao clock_gettime(cpu_clock_id, &now); 50557dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao return static_cast<uint64_t>(now.tv_sec) * 1000000LL + now.tv_nsec / 1000LL; 50657dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao#else 50757dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao UNIMPLEMENTED(WARNING); 50857dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao return -1; 50957dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao#endif 51057dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao} 51157dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao 512474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogersvoid Thread::AtomicSetFlag(ThreadFlag flag) { 51330e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers android_atomic_or(flag, &state_and_flags_.as_int); 514474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers} 515474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers 516474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogersvoid Thread::AtomicClearFlag(ThreadFlag flag) { 51730e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers android_atomic_and(-1 ^ flag, &state_and_flags_.as_int); 518474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers} 519474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers 52001ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers// Attempt to rectify locks so that we dump thread list with required locks before exiting. 52101ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogersstatic void UnsafeLogFatalForSuspendCount(Thread* self, Thread* thread) NO_THREAD_SAFETY_ANALYSIS { 522120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << *thread << " suspend count already zero."; 52301ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::thread_suspend_count_lock_->Unlock(self); 52401ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::mutator_lock_->IsSharedHeld(self)) { 52501ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::mutator_lock_->SharedTryLock(self); 52601ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::mutator_lock_->IsSharedHeld(self)) { 52701ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers LOG(WARNING) << "Dumping thread list without holding mutator_lock_"; 52801ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 52901ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 53001ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::thread_list_lock_->IsExclusiveHeld(self)) { 53101ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::thread_list_lock_->TryLock(self); 53201ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::thread_list_lock_->IsExclusiveHeld(self)) { 53301ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers LOG(WARNING) << "Dumping thread list without holding thread_list_lock_"; 53401ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 53501ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 53601ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers std::ostringstream ss; 53701ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Runtime::Current()->GetThreadList()->DumpLocked(ss); 538120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(FATAL) << ss.str(); 53901ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers} 54001ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers 54101ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogersvoid Thread::ModifySuspendCount(Thread* self, int delta, bool for_debugger) { 54200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DCHECK(delta == -1 || delta == +1 || delta == -debug_suspend_count_) 54300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << delta << " " << debug_suspend_count_ << " " << this; 54400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DCHECK_GE(suspend_count_, debug_suspend_count_) << this; 54501ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::thread_suspend_count_lock_->AssertHeld(self); 546cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (this != self && !IsSuspended()) { 547cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers Locks::thread_list_lock_->AssertHeld(self); 548cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers } 54901ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (UNLIKELY(delta < 0 && suspend_count_ <= 0)) { 55001ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers UnsafeLogFatalForSuspendCount(self, this); 55100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return; 55200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 55301ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers 55400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers suspend_count_ += delta; 55500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (for_debugger) { 55600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers debug_suspend_count_ += delta; 55700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 55801ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers 559474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers if (suspend_count_ == 0) { 560474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers AtomicClearFlag(kSuspendRequest); 561474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers } else { 562474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers AtomicSetFlag(kSuspendRequest); 563474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers } 56400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 56500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 566752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartiervoid Thread::RunCheckpointFunction() { 567752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier CHECK(checkpoint_function_ != NULL); 568752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier ATRACE_BEGIN("Checkpoint function"); 569752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier checkpoint_function_->Run(this); 570752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier ATRACE_END(); 571752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier} 572752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier 5730e4627e593bc39f8e3d89c31f8977d55054c07ccMathieu Chartierbool Thread::RequestCheckpoint(Closure* function) { 574858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier CHECK(!ReadFlag(kCheckpointRequest)) << "Already have a pending checkpoint request"; 575858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier checkpoint_function_ = function; 576858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier union StateAndFlags old_state_and_flags = state_and_flags_; 577858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier // We must be runnable to request a checkpoint. 578858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier old_state_and_flags.as_struct.state = kRunnable; 579858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier union StateAndFlags new_state_and_flags = old_state_and_flags; 580858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier new_state_and_flags.as_struct.flags |= kCheckpointRequest; 581858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier int succeeded = android_atomic_cmpxchg(old_state_and_flags.as_int, new_state_and_flags.as_int, 582858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier &state_and_flags_.as_int); 583858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier return succeeded == 0; 584858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier} 585858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier 58600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::FullSuspendCheck() { 58700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers VLOG(threads) << this << " self-suspending"; 588752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier ATRACE_BEGIN("Full suspend check"); 58900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Make thread appear suspended to other threads, release mutator_lock_. 59000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers TransitionFromRunnableToSuspended(kSuspended); 59100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Transition back to runnable noting requests to suspend, re-acquire share on mutator_lock_. 59200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers TransitionFromSuspendedToRunnable(); 593752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier ATRACE_END(); 59400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers VLOG(threads) << this << " self-reviving"; 59500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 59600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 597f327e07b37e349b1ec5eaad6dc294a9b7a081d20Elliott HughesThread* Thread::SuspendForDebugger(jobject peer, bool request_suspension, bool* timed_out) { 5987934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom static const useconds_t kTimeoutUs = 30 * 1000000; // 30s. 59900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers useconds_t total_delay_us = 0; 60000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers useconds_t delay_us = 0; 60100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers bool did_suspend_request = false; 602f327e07b37e349b1ec5eaad6dc294a9b7a081d20Elliott Hughes *timed_out = false; 60300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers while (true) { 60400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Thread* thread; 60500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers { 60600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(Thread::Current()); 6073c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum Thread* self = soa.Self(); 6083c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum MutexLock mu(self, *Locks::thread_list_lock_); 60900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers thread = Thread::FromManagedThread(soa, peer); 61000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (thread == NULL) { 6113c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum JNIEnv* env = self->GetJniEnv(); 6123c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum ScopedLocalRef<jstring> scoped_name_string(env, 6133c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum (jstring)env->GetObjectField(peer, 6143c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum WellKnownClasses::java_lang_Thread_name)); 615b1eba213afaf7fa6445de863ddc9680ab99762eaBrian Carlstrom ScopedUtfChars scoped_name_chars(env, scoped_name_string.get()); 6163c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum if (scoped_name_chars.c_str() == NULL) { 6173c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum LOG(WARNING) << "No such thread for suspend: " << peer; 6183c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum env->ExceptionClear(); 6193c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum } else { 6203c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum LOG(WARNING) << "No such thread for suspend: " << peer << ":" << scoped_name_chars.c_str(); 6213c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum } 6223c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum 62300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return NULL; 62400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 62500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers { 62681d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(soa.Self(), *Locks::thread_suspend_count_lock_); 62700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (request_suspension) { 62801ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers thread->ModifySuspendCount(soa.Self(), +1, true /* for_debugger */); 62900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers request_suspension = false; 63000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers did_suspend_request = true; 63100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 63200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // IsSuspended on the current thread will fail as the current thread is changed into 63300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Runnable above. As the suspend count is now raised if this is the current thread 634cb69306eefc1e6e42b3eaec8b479a268222b01b6Elliott Hughes // it will self suspend on transition to Runnable, making it hard to work with. It's simpler 63500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // to just explicitly handle the current thread in the callers to this code. 636cb69306eefc1e6e42b3eaec8b479a268222b01b6Elliott Hughes CHECK_NE(thread, soa.Self()) << "Attempt to suspend the current thread for the debugger"; 63700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // If thread is suspended (perhaps it was already not Runnable but didn't have a suspend 63800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // count, or else we've waited and it has self suspended) or is the current thread, we're 63900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // done. 64000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (thread->IsSuspended()) { 64100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return thread; 64200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 64300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (total_delay_us >= kTimeoutUs) { 64400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(ERROR) << "Thread suspension timed out: " << peer; 64500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (did_suspend_request) { 64601ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers thread->ModifySuspendCount(soa.Self(), -1, true /* for_debugger */); 64700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 648f327e07b37e349b1ec5eaad6dc294a9b7a081d20Elliott Hughes *timed_out = true; 64900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return NULL; 65000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 65100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 65200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Release locks and come out of runnable state. 65300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 6540f827169742aad6209d830db773a101849c32a83Elliott Hughes for (int i = kLockLevelCount - 1; i >= 0; --i) { 65581d425b0b232962441616f8b14f73620bffef5e5Ian Rogers BaseMutex* held_mutex = Thread::Current()->GetHeldMutex(static_cast<LockLevel>(i)); 65600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (held_mutex != NULL) { 65700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(FATAL) << "Holding " << held_mutex->GetName() 65800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << " while sleeping for thread suspension"; 65900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 66000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 66100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers { 66200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers useconds_t new_delay_us = delay_us * 2; 66300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_GE(new_delay_us, delay_us); 66400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (new_delay_us < 500000) { // Don't allow sleeping to be more than 0.5s. 66500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers delay_us = new_delay_us; 66600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 66700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 66800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (delay_us == 0) { 66900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers sched_yield(); 67000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Default to 1 milliseconds (note that this gets multiplied by 2 before the first sleep). 67100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers delay_us = 500; 67200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } else { 67300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers usleep(delay_us); 67400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers total_delay_us += delay_us; 67500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 67600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 67700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 67800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 679abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughesvoid Thread::DumpState(std::ostream& os, const Thread* thread, pid_t tid) { 680d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes std::string group_name; 681d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes int priority; 682d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes bool is_daemon = false; 68381d425b0b232962441616f8b14f73620bffef5e5Ian Rogers Thread* self = Thread::Current(); 684d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 685a6227676df130164322b1ac66a429eb0bfd0df62Ian Rogers if (self != NULL && thread != NULL && thread->opeer_ != NULL) { 686cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedObjectAccessUnchecked soa(self); 687cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers priority = soa.DecodeField(WellKnownClasses::java_lang_Thread_priority)->GetInt(thread->opeer_); 688cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers is_daemon = soa.DecodeField(WellKnownClasses::java_lang_Thread_daemon)->GetBoolean(thread->opeer_); 689d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 6902dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* thread_group = 691cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers soa.DecodeField(WellKnownClasses::java_lang_Thread_group)->GetObject(thread->opeer_); 692120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 693d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes if (thread_group != NULL) { 694ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtField* group_name_field = 6952dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers soa.DecodeField(WellKnownClasses::java_lang_ThreadGroup_name); 6962dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::String* group_name_string = 6972dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers reinterpret_cast<mirror::String*>(group_name_field->GetObject(thread_group)); 698d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes group_name = (group_name_string != NULL) ? group_name_string->ToModifiedUtf8() : "<null>"; 699d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 700d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } else { 701d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes priority = GetNativePriority(); 702dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes } 703d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 704abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes std::string scheduler_group_name(GetSchedulerGroupName(tid)); 7051bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughes if (scheduler_group_name.empty()) { 7061bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughes scheduler_group_name = "default"; 707d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 708d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 709abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (thread != NULL) { 710abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << '"' << *thread->name_ << '"'; 711abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (is_daemon) { 712abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " daemon"; 713abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } 714abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " prio=" << priority 715abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " tid=" << thread->GetThinLockId() 71680537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes << " " << thread->GetState(); 71780537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes if (thread->IsStillStarting()) { 71880537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes os << " (still starting up)"; 71980537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes } 72080537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes os << "\n"; 721abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } else { 722289be85116aaf7c48413858b5d0448868b4e61f3Elliott Hughes os << '"' << ::art::GetThreadName(tid) << '"' 723abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " prio=" << priority 724abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " (not attached)\n"; 725abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } 726abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes 727abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (thread != NULL) { 72881d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(self, *Locks::thread_suspend_count_lock_); 729abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " | group=\"" << group_name << "\"" 730abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " sCount=" << thread->suspend_count_ 731abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " dsCount=" << thread->debug_suspend_count_ 732cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers << " obj=" << reinterpret_cast<void*>(thread->opeer_) 733abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " self=" << reinterpret_cast<const void*>(thread) << "\n"; 734d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 7350d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes 736abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " | sysTid=" << tid 737abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " nice=" << getpriority(PRIO_PROCESS, tid) 7380d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes << " cgrp=" << scheduler_group_name; 7390d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes if (thread != NULL) { 7400d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes int policy; 7410d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes sched_param sp; 7420d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes CHECK_PTHREAD_CALL(pthread_getschedparam, (thread->pthread_self_, &policy, &sp), __FUNCTION__); 7430d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes os << " sched=" << policy << "/" << sp.sched_priority 7440d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes << " handle=" << reinterpret_cast<void*>(thread->pthread_self_); 7450d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes } 7460d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes os << "\n"; 747d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 748d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes // Grab the scheduler stats for this thread. 749d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes std::string scheduler_stats; 750abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (ReadFileToString(StringPrintf("/proc/self/task/%d/schedstat", tid), &scheduler_stats)) { 7517934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom scheduler_stats.resize(scheduler_stats.size() - 1); // Lose the trailing '\n'. 752d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } else { 753d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes scheduler_stats = "0 0 0"; 754d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 755d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 756ba0b9c55adce3f533845ab1b25c552589e5b4118Elliott Hughes char native_thread_state = '?'; 757d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int utime = 0; 758d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int stime = 0; 759d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int task_cpu = 0; 760ba0b9c55adce3f533845ab1b25c552589e5b4118Elliott Hughes GetTaskStats(tid, native_thread_state, utime, stime, task_cpu); 761d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 762ba0b9c55adce3f533845ab1b25c552589e5b4118Elliott Hughes os << " | state=" << native_thread_state 763ba0b9c55adce3f533845ab1b25c552589e5b4118Elliott Hughes << " schedstat=( " << scheduler_stats << " )" 764d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes << " utm=" << utime 765d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes << " stm=" << stime 766abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " core=" << task_cpu 767abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " HZ=" << sysconf(_SC_CLK_TCK) << "\n"; 768abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (thread != NULL) { 769abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " | stack=" << reinterpret_cast<void*>(thread->stack_begin_) << "-" << reinterpret_cast<void*>(thread->stack_end_) 770abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " stackSize=" << PrettySize(thread->stack_size_) << "\n"; 771abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } 772abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes} 773abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes 774abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughesvoid Thread::DumpState(std::ostream& os) const { 775abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes Thread::DumpState(os, this, GetTid()); 776a09576416788b916095739e43a16917e7948f3a4Elliott Hughes} 777a09576416788b916095739e43a16917e7948f3a4Elliott Hughes 7780399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersstruct StackDumpVisitor : public StackVisitor { 7797a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers StackDumpVisitor(std::ostream& os, Thread* thread, Context* context, bool can_allocate) 780b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 7817a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers : StackVisitor(thread, context), os(os), thread(thread), can_allocate(can_allocate), 78208fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes last_method(NULL), last_line_number(0), repetition_count(0), frame_count(0) { 783d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 784d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 785bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers virtual ~StackDumpVisitor() { 786e85d2e924953f1a13b7152edba1c13853e6f3a86Elliott Hughes if (frame_count == 0) { 787e85d2e924953f1a13b7152edba1c13853e6f3a86Elliott Hughes os << " (no managed stack frames)\n"; 788e85d2e924953f1a13b7152edba1c13853e6f3a86Elliott Hughes } 789d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 790d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 791b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 792ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = GetMethod(); 7930399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (m->IsRuntimeMethod()) { 794530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 7959086572fa809d1a19d886b467e4da3ce42016982Ian Rogers } 79628ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers const int kMaxRepetition = 3; 7972dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Class* c = m->GetDeclaringClass(); 7982dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers const mirror::DexCache* dex_cache = c->GetDexCache(); 799b861dc0077342d5a1d2dd9cade3f6990620778ecIan Rogers int line_number = -1; 800b861dc0077342d5a1d2dd9cade3f6990620778ecIan Rogers if (dex_cache != NULL) { // be tolerant of bad input 8014445a7e3398a6143939168097a3aa275b734504dIan Rogers const DexFile& dex_file = *dex_cache->GetDexFile(); 8020399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers line_number = dex_file.GetLineNumFromPC(m, GetDexPc()); 803b861dc0077342d5a1d2dd9cade3f6990620778ecIan Rogers } 80428ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (line_number == last_line_number && last_method == m) { 80528ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers repetition_count++; 806d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } else { 80728ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (repetition_count >= kMaxRepetition) { 80828ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << " ... repeated " << (repetition_count - kMaxRepetition) << " times\n"; 80928ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 81028ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers repetition_count = 0; 81128ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers last_line_number = line_number; 81228ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers last_method = m; 81328ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 81428ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (repetition_count < kMaxRepetition) { 81528ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << " at " << PrettyMethod(m, false); 81628ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (m->IsNative()) { 81728ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << "(Native method)"; 81828ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } else { 8196d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers mh.ChangeMethod(m); 8206d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers const char* source_file(mh.GetDeclaringClassSourceFile()); 8216d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers os << "(" << (source_file != NULL ? source_file : "unavailable") 82228ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers << ":" << line_number << ")"; 82328ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 82428ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << "\n"; 82508fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes if (frame_count == 0) { 82608fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes Monitor::DescribeWait(os, thread); 82708fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes } 82808fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes if (can_allocate) { 8294993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes Monitor::VisitLocks(this, DumpLockedObject, &os); 83008fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes } 831d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 8328e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes 83308fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes ++frame_count; 834530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 835d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 8364993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes 8372dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers static void DumpLockedObject(mirror::Object* o, void* context) 8384993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 8394993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes std::ostream& os = *reinterpret_cast<std::ostream*>(context); 8404993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes os << " - locked <" << o << "> (a " << PrettyTypeOf(o) << ")\n"; 8414993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes } 8424993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes 84308fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes std::ostream& os; 84408fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes const Thread* thread; 8450878d654e7be8c9666579e22522704d8887415ccIan Rogers const bool can_allocate; 8466d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers MethodHelper mh; 847ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* last_method; 84828ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers int last_line_number; 84928ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers int repetition_count; 8508e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes int frame_count; 851d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes}; 852d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 85333e9566255c426e7a2c8fca5b8a1b6a94a5d352cIan Rogersstatic bool ShouldShowNativeStack(const Thread* thread) 85433e9566255c426e7a2c8fca5b8a1b6a94a5d352cIan Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 855aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes ThreadState state = thread->GetState(); 856aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes 857aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // In native code somewhere in the VM (one of the kWaitingFor* states)? That's interesting. 858aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes if (state > kWaiting && state < kStarting) { 859aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes return true; 860aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes } 861aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes 862aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // In an Object.wait variant or Thread.sleep? That's not interesting. 863aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes if (state == kTimedWaiting || state == kSleeping || state == kWaiting) { 864aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes return false; 865aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes } 866aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes 867aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // In some other native method? That's interesting. 868aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // We don't just check kNative because native methods will be in state kSuspended if they're 869aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // calling back into the VM, or kBlocked if they're blocked on a monitor, or one of the 870aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // thread-startup states if it's early enough in their life cycle (http://b/7432159). 871ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* current_method = thread->GetCurrentMethod(NULL); 872aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes return current_method != NULL && current_method->IsNative(); 873aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes} 874aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes 875d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughesvoid Thread::DumpStack(std::ostream& os) const { 876ed1790e83352e54420018d1495eb010f7cd48a64Jeff Hao // TODO: we call this code when dying but may not have suspended the thread ourself. The 877ed1790e83352e54420018d1495eb010f7cd48a64Jeff Hao // IsSuspended check is therefore racy with the use for dumping (normally we inhibit 878ed1790e83352e54420018d1495eb010f7cd48a64Jeff Hao // the race with the thread_suspend_count_lock_). 87965530499a0169b3b0b153008e2d187c9f4939541Ian Rogers // No point dumping for an abort in debug builds where we'll hit the not suspended check in stack. 88065530499a0169b3b0b153008e2d187c9f4939541Ian Rogers bool dump_for_abort = (gAborting > 0) && !kIsDebugBuild; 881d090cf4f2420a228251e27dbae600f4f44ae2c57Ian Rogers if (this == Thread::Current() || IsSuspended() || dump_for_abort) { 882f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers // If we're currently in native code, dump that stack before dumping the managed stack. 883d090cf4f2420a228251e27dbae600f4f44ae2c57Ian Rogers if (dump_for_abort || ShouldShowNativeStack(this)) { 884f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers DumpKernelStack(os, GetTid(), " kernel: ", false); 885f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers DumpNativeStack(os, GetTid(), " native: ", false); 886f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers } 887f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers UniquePtr<Context> context(Context::Create()); 888f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers StackDumpVisitor dumper(os, const_cast<Thread*>(this), context.get(), !throwing_OutOfMemoryError_); 889f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers dumper.WalkStack(); 890f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers } else { 891f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers os << "Not able to dump stack of thread that isn't suspended"; 892f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers } 893e27955ca3ca960928d4dbd6cb79711fce06950b3Elliott Hughes} 894e27955ca3ca960928d4dbd6cb79711fce06950b3Elliott Hughes 895be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughesvoid Thread::ThreadExitCallback(void* arg) { 896be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes Thread* self = reinterpret_cast<Thread*>(arg); 8976a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes if (self->thread_exit_check_count_ == 0) { 8986a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes LOG(WARNING) << "Native thread exiting without having called DetachCurrentThread (maybe it's going to use a pthread_key_create destructor?): " << *self; 8990878d654e7be8c9666579e22522704d8887415ccIan Rogers CHECK(is_started_); 9006a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes CHECK_PTHREAD_CALL(pthread_setspecific, (Thread::pthread_key_self_, self), "reattach self"); 9016a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes self->thread_exit_check_count_ = 1; 9026a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes } else { 9036a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes LOG(FATAL) << "Native thread exited without calling DetachCurrentThread: " << *self; 9046a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes } 905b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro} 906b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 907be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughesvoid Thread::Startup() { 9080878d654e7be8c9666579e22522704d8887415ccIan Rogers CHECK(!is_started_); 9090878d654e7be8c9666579e22522704d8887415ccIan Rogers is_started_ = true; 91000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers { 9116d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // MutexLock to keep annotalysis happy. 9126d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // 9136d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // Note we use NULL for the thread because Thread::Current can 9146d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // return garbage since (is_started_ == true) and 9156d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // Thread::pthread_key_self_ is not yet initialized. 9166d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // This was seen on glibc. 9176d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom MutexLock mu(NULL, *Locks::thread_suspend_count_lock_); 918c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers resume_cond_ = new ConditionVariable("Thread resumption condition variable", 919c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers *Locks::thread_suspend_count_lock_); 92000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 92100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 922b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro // Allocate a TLS slot. 9238d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes CHECK_PTHREAD_CALL(pthread_key_create, (&Thread::pthread_key_self_, Thread::ThreadExitCallback), "self key"); 924b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 925b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro // Double-check the TLS slot allocation. 926b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro if (pthread_getspecific(pthread_key_self_) != NULL) { 9273d30d9b09c16542d41554aad9f46ec9109ba5cb5Elliott Hughes LOG(FATAL) << "Newly-created pthread TLS slot is not NULL"; 928b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro } 929038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes} 930038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes 931038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughesvoid Thread::FinishStartup() { 932365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Runtime* runtime = Runtime::Current(); 933365c10235438607541fa2259a5fec48061b90bd8Ian Rogers CHECK(runtime->IsStarted()); 934b82b6878fb000d4731063b1bf15c39ff7c50b61fBrian Carlstrom 93501158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Finish attaching the main thread. 93600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(Thread::Current()); 937365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Thread::Current()->CreatePeer("main", false, runtime->GetMainThreadGroup()); 9389a6bae896a2f003d7216603bf29771d105c10ca4Jesse Wilson 939af8d15a3267343dec135cc6df1db740c0a5c7b52Elliott Hughes Runtime::Current()->GetClassLinker()->RunRootClinits(); 940b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro} 941b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 942c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughesvoid Thread::Shutdown() { 9430878d654e7be8c9666579e22522704d8887415ccIan Rogers CHECK(is_started_); 9440878d654e7be8c9666579e22522704d8887415ccIan Rogers is_started_ = false; 9458d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes CHECK_PTHREAD_CALL(pthread_key_delete, (Thread::pthread_key_self_), "self key"); 94633e9566255c426e7a2c8fca5b8a1b6a94a5d352cIan Rogers MutexLock mu(Thread::Current(), *Locks::thread_suspend_count_lock_); 9470878d654e7be8c9666579e22522704d8887415ccIan Rogers if (resume_cond_ != NULL) { 9480878d654e7be8c9666579e22522704d8887415ccIan Rogers delete resume_cond_; 9490878d654e7be8c9666579e22522704d8887415ccIan Rogers resume_cond_ = NULL; 9500878d654e7be8c9666579e22522704d8887415ccIan Rogers } 951c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes} 952c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes 95352673ffae0025d86f4023735581f19ebcc477487Ian RogersThread::Thread(bool daemon) 9540399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers : suspend_count_(0), 9550399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers card_table_(NULL), 9560399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers exception_(NULL), 9570399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers stack_end_(NULL), 9580399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers managed_stack_(), 9590399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers jni_env_(NULL), 9600399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers self_(NULL), 961cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers opeer_(NULL), 962cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers jpeer_(NULL), 9630399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers stack_begin_(NULL), 9640399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers stack_size_(0), 9655ce4b178d2483df679e7f718e379305e5d42a300Jeff Hao stack_trace_sample_(NULL), 9665ce4b178d2483df679e7f718e379305e5d42a300Jeff Hao trace_clock_base_(0), 9670399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers thin_lock_id_(0), 9680399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers tid_(0), 969e62934d85fbc2d935afdad57eeade39ecbd7440aElliott Hughes wait_mutex_(new Mutex("a thread wait mutex")), 970c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers wait_cond_(new ConditionVariable("a thread wait condition variable", *wait_mutex_)), 9718daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes wait_monitor_(NULL), 9728daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes interrupted_(false), 973dc33ad5db2dc6ed9b76d5219888626a604debbe1Elliott Hughes wait_next_(NULL), 9748e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes monitor_enter_object_(NULL), 975dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes top_sirt_(NULL), 976dc33ad5db2dc6ed9b76d5219888626a604debbe1Elliott Hughes runtime_(NULL), 97785d1545e985ac689db4bad7849880e843707c862Elliott Hughes class_loader_override_(NULL), 978418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes long_jump_context_(NULL), 979726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes throwing_OutOfMemoryError_(false), 9800399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers debug_suspend_count_(0), 981e343b76af81a005ef64f5e75a555389fd9147dabjeffhao debug_invoke_req_(new DebugInvokeReq), 98262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers deoptimization_shadow_frame_(NULL), 98362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers instrumentation_stack_(new std::deque<instrumentation::InstrumentationStackFrame>), 9840399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers name_(new std::string(kThreadNameDuringStartup)), 98552673ffae0025d86f4023735581f19ebcc477487Ian Rogers daemon_(daemon), 98600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers pthread_self_(0), 98752673ffae0025d86f4023735581f19ebcc477487Ian Rogers no_thread_suspension_(0), 9886a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes last_no_thread_suspension_cause_(NULL), 989858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier checkpoint_function_(0), 9906a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes thread_exit_check_count_(0) { 991f5a7a476e7ea63e094ff0f011dccc170607e6f6bElliott Hughes CHECK_EQ((sizeof(Thread) % 4), 0U) << sizeof(Thread); 99230e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers state_and_flags_.as_struct.flags = 0; 99330e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers state_and_flags_.as_struct.state = kNative; 994ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes memset(&held_mutexes_[0], 0, sizeof(held_mutexes_)); 995dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes} 996dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes 9977dc5166ea740359d381097a7ab382c1dd404055fElliott Hughesbool Thread::IsStillStarting() const { 9987dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // You might think you can check whether the state is kStarting, but for much of thread startup, 99980537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes // the thread is in kNative; it might also be in kVmWait. 10007dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // You might think you can check whether the peer is NULL, but the peer is actually created and 10017dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // assigned fairly early on, and needs to be. 10027dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // It turns out that the last thing to change is the thread name; that's a good proxy for "has 10037dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // this thread _ever_ entered kRunnable". 100480537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes return (jpeer_ == NULL && opeer_ == NULL) || (*name_ == kThreadNameDuringStartup); 10057dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes} 10067dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes 100700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::AssertNoPendingException() const { 100800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (UNLIKELY(IsExceptionPending())) { 100900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(Thread::Current()); 101062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Throwable* exception = GetException(NULL); 101100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(FATAL) << "No pending exception expected: " << exception->Dump(); 101200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 101300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 101400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 10152dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersstatic void MonitorExitVisitor(const mirror::Object* object, void* arg) NO_THREAD_SAFETY_ANALYSIS { 101600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Thread* self = reinterpret_cast<Thread*>(arg); 10172dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* entered_monitor = const_cast<mirror::Object*>(object); 101800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (self->HoldsLock(entered_monitor)) { 101900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(WARNING) << "Calling MonitorExit on object " 102000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << object << " (" << PrettyTypeOf(object) << ")" 102100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << " left locked by native thread " 102200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << *Thread::Current() << " which is detaching"; 102300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers entered_monitor->MonitorExit(self); 102400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 102502b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes} 102602b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 1027c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughesvoid Thread::Destroy() { 1028120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self = this; 1029120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers DCHECK_EQ(self, Thread::Current()); 103002b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 1031cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (opeer_ != NULL) { 1032cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedObjectAccess soa(self); 1033120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // We may need to call user-supplied managed code, do this before final clean-up. 1034cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers HandleUncaughtExceptions(soa); 1035cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers RemoveFromThreadGroup(soa); 1036534da072d3db3beecbd74e5aa23d630d73695f2cElliott Hughes 10373c50a4b4ba6d7d9369ee9a0bd6d30bf4c9c79bb0Anwar Ghuloum // this.nativePeer = 0; 10383c50a4b4ba6d7d9369ee9a0bd6d30bf4c9c79bb0Anwar Ghuloum soa.DecodeField(WellKnownClasses::java_lang_Thread_nativePeer)->SetInt(opeer_, 0); 1039cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers Dbg::PostThreadDeath(self); 104002b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 1041cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers // Thread.join() is implemented as an Object.wait() on the Thread.lock object. Signal anyone 1042cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers // who is waiting. 10432dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* lock = 10442dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers soa.DecodeField(WellKnownClasses::java_lang_Thread_lock)->GetObject(opeer_); 1045038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes // (This conditional is only needed for tests, where Thread.lock won't have been set.) 1046cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (lock != NULL) { 104705f3057d6a4d23d712092ccd36a531590bff323bIan Rogers ObjectLock locker(self, lock); 104805f3057d6a4d23d712092ccd36a531590bff323bIan Rogers locker.Notify(); 10495f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 10505f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 1051120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 1052120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // On thread detach, all monitors entered with JNI MonitorEnter are automatically exited. 1053120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (jni_env_ != NULL) { 1054120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->monitors.VisitRoots(MonitorExitVisitor, self); 1055120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 1056c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes} 105702b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 1058c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott HughesThread::~Thread() { 1059cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (jni_env_ != NULL && jpeer_ != NULL) { 1060dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier // If pthread_create fails we don't have a jni env here. 1061cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers jni_env_->DeleteGlobalRef(jpeer_); 1062cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers jpeer_ = NULL; 1063dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier } 1064cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers opeer_ = NULL; 1065dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier 1066c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes delete jni_env_; 106702b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes jni_env_ = NULL; 106802b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 1069dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier CHECK_NE(GetState(), kRunnable); 1070dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier // We may be deleting a still born thread. 1071dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier SetStateUnsafe(kTerminated); 107285d1545e985ac689db4bad7849880e843707c862Elliott Hughes 107385d1545e985ac689db4bad7849880e843707c862Elliott Hughes delete wait_cond_; 107485d1545e985ac689db4bad7849880e843707c862Elliott Hughes delete wait_mutex_; 107585d1545e985ac689db4bad7849880e843707c862Elliott Hughes 1076c928de90ad22ecdf83c18a07008409595f13d3b1Ian Rogers if (long_jump_context_ != NULL) { 1077c928de90ad22ecdf83c18a07008409595f13d3b1Ian Rogers delete long_jump_context_; 1078c928de90ad22ecdf83c18a07008409595f13d3b1Ian Rogers } 1079475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes 1080475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes delete debug_invoke_req_; 1081725a957985171d712d5c048cc3d00ff14968784bjeffhao delete instrumentation_stack_; 1082899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes delete name_; 10835ce4b178d2483df679e7f718e379305e5d42a300Jeff Hao delete stack_trace_sample_; 1084d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes 1085d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes TearDownAlternateSignalStack(); 1086c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes} 1087c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes 1088cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogersvoid Thread::HandleUncaughtExceptions(ScopedObjectAccess& soa) { 1089accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes if (!IsExceptionPending()) { 1090accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes return; 1091accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes } 1092cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedLocalRef<jobject> peer(jni_env_, soa.AddLocalReference<jobject>(opeer_)); 1093cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedThreadStateChange tsc(this, kNative); 1094120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 1095accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Get and clear the exception. 1096120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedLocalRef<jthrowable> exception(jni_env_, jni_env_->ExceptionOccurred()); 1097120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->ExceptionClear(); 1098accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1099accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // If the thread has its own handler, use that. 1100120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedLocalRef<jobject> handler(jni_env_, 1101cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers jni_env_->GetObjectField(peer.get(), 1102120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers WellKnownClasses::java_lang_Thread_uncaughtHandler)); 1103120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (handler.get() == NULL) { 1104accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Otherwise use the thread group's default handler. 1105cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers handler.reset(jni_env_->GetObjectField(peer.get(), WellKnownClasses::java_lang_Thread_group)); 1106accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes } 1107accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1108accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Call the handler. 1109120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->CallVoidMethod(handler.get(), 1110120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers WellKnownClasses::java_lang_Thread$UncaughtExceptionHandler_uncaughtException, 1111cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers peer.get(), exception.get()); 1112accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1113accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // If the handler threw, clear that exception too. 1114120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->ExceptionClear(); 1115a215526d5c789cbef0f81a1f9aba22541a841ccaElliott Hughes} 1116a215526d5c789cbef0f81a1f9aba22541a841ccaElliott Hughes 1117cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogersvoid Thread::RemoveFromThreadGroup(ScopedObjectAccess& soa) { 11184514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom // this.group.removeThread(this); 11194514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom // group can be null if we're in the compiler or a test. 11202dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* ogroup = soa.DecodeField(WellKnownClasses::java_lang_Thread_group)->GetObject(opeer_); 1121cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (ogroup != NULL) { 1122cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedLocalRef<jobject> group(soa.Env(), soa.AddLocalReference<jobject>(ogroup)); 1123cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedLocalRef<jobject> peer(soa.Env(), soa.AddLocalReference<jobject>(opeer_)); 1124cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedThreadStateChange tsc(soa.Self(), kNative); 1125120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->CallVoidMethod(group.get(), WellKnownClasses::java_lang_ThreadGroup_removeThread, 1126cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers peer.get()); 11274514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom } 11284514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom} 1129accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1130408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogerssize_t Thread::NumSirtReferences() { 1131a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers size_t count = 0; 113240381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom for (StackIndirectReferenceTable* cur = top_sirt_; cur; cur = cur->GetLink()) { 1133a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers count += cur->NumberOfReferences(); 1134a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers } 1135a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers return count; 1136a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers} 1137a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers 1138cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogersbool Thread::SirtContains(jobject obj) const { 11392dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object** sirt_entry = reinterpret_cast<mirror::Object**>(obj); 114040381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom for (StackIndirectReferenceTable* cur = top_sirt_; cur; cur = cur->GetLink()) { 114140381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom if (cur->Contains(sirt_entry)) { 1142a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers return true; 1143a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers } 1144a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers } 11450399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // JNI code invoked from portable code uses shadow frames rather than the SIRT. 11460399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return managed_stack_.ShadowFramesContain(sirt_entry); 114728f1a147d77ec772db98bed890b50a9ddcff2365TDYa} 114828f1a147d77ec772db98bed890b50a9ddcff2365TDYa 11492dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersvoid Thread::SirtVisitRoots(RootVisitor* visitor, void* arg) { 115040381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom for (StackIndirectReferenceTable* cur = top_sirt_; cur; cur = cur->GetLink()) { 11518dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao size_t num_refs = cur->NumberOfReferences(); 11528dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao for (size_t j = 0; j < num_refs; j++) { 11532dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* object = cur->GetReference(j); 11545e73f9c8990819054f8e0a60061ee8beff1e024aBrian Carlstrom if (object != NULL) { 11555e73f9c8990819054f8e0a60061ee8beff1e024aBrian Carlstrom visitor(object, arg); 11565e73f9c8990819054f8e0a60061ee8beff1e024aBrian Carlstrom } 11578dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao } 11588dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao } 11598dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao} 11608dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao 11612dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersmirror::Object* Thread::DecodeJObject(jobject obj) const { 116281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers Locks::mutator_lock_->AssertSharedHeld(this); 1163408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers if (obj == NULL) { 1164408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers return NULL; 1165408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1166408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers IndirectRef ref = reinterpret_cast<IndirectRef>(obj); 1167408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers IndirectRefKind kind = GetIndirectRefKind(ref); 11682dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* result; 11694f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers // The "kinds" below are sorted by the frequency we expect to encounter them. 11704f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (kind == kLocal) { 11714f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers IndirectReferenceTable& locals = jni_env_->locals; 11724f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers result = const_cast<mirror::Object*>(locals.Get(ref)); 11734f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers } else if (kind == kSirtOrInvalid) { 1174408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // TODO: make stack indirect reference table lookup more efficient 1175408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Check if this is a local reference in the SIRT 11764f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (LIKELY(SirtContains(obj))) { 11772dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers result = *reinterpret_cast<mirror::Object**>(obj); // Read from SIRT 1178c2dc62d1c9241dfe880a81698713c314b13aa63fElliott Hughes } else if (Runtime::Current()->GetJavaVM()->work_around_app_jni_bugs) { 1179408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Assume an invalid local reference is actually a direct pointer. 11802dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers result = reinterpret_cast<mirror::Object*>(obj); 1181408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } else { 1182a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes result = kInvalidIndirectRefObject; 1183408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 11844f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers } else if (kind == kGlobal) { 11854f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers JavaVMExt* vm = Runtime::Current()->GetJavaVM(); 11864f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers IndirectReferenceTable& globals = vm->globals; 11874f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers MutexLock mu(const_cast<Thread*>(this), vm->globals_lock); 11884f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers result = const_cast<mirror::Object*>(globals.Get(ref)); 11894f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers } else { 11904f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers DCHECK_EQ(kind, kWeakGlobal); 11914f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers JavaVMExt* vm = Runtime::Current()->GetJavaVM(); 11924f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers IndirectReferenceTable& weak_globals = vm->weak_globals; 11934f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers MutexLock mu(const_cast<Thread*>(this), vm->weak_globals_lock); 11944f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers result = const_cast<mirror::Object*>(weak_globals.Get(ref)); 11954f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (result == kClearedJniWeakGlobal) { 11964f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers // This is a special case where it's okay to return NULL. 11974f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers return NULL; 11984f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers } 1199408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1200408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers 12014f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (UNLIKELY(result == NULL)) { 12023f6635a2c84d645002f651c312d53f8348646c1fElliott Hughes JniAbortF(NULL, "use of deleted %s %p", ToStr<IndirectRefKind>(kind).c_str(), obj); 1203a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes } else { 12044f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (kIsDebugBuild && (result != kInvalidIndirectRefObject)) { 1205b3bd5f07884f5a1f2b84224363b1372d7c28d447Elliott Hughes Runtime::Current()->GetHeap()->VerifyObject(result); 1206a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes } 1207408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1208408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers return result; 1209408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers} 1210408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers 121181d425b0b232962441616f8b14f73620bffef5e5Ian Rogers// Implements java.lang.Thread.interrupted. 121281d425b0b232962441616f8b14f73620bffef5e5Ian Rogersbool Thread::Interrupted() { 121350b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers MutexLock mu(Thread::Current(), *wait_mutex_); 121481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers bool interrupted = interrupted_; 121581d425b0b232962441616f8b14f73620bffef5e5Ian Rogers interrupted_ = false; 121681d425b0b232962441616f8b14f73620bffef5e5Ian Rogers return interrupted; 121781d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 121881d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 121981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers// Implements java.lang.Thread.isInterrupted. 122081d425b0b232962441616f8b14f73620bffef5e5Ian Rogersbool Thread::IsInterrupted() { 122150b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers MutexLock mu(Thread::Current(), *wait_mutex_); 122281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers return interrupted_; 122381d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 122481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 122581d425b0b232962441616f8b14f73620bffef5e5Ian Rogersvoid Thread::Interrupt() { 1226c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers Thread* self = Thread::Current(); 1227c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers MutexLock mu(self, *wait_mutex_); 122881d425b0b232962441616f8b14f73620bffef5e5Ian Rogers if (interrupted_) { 122981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers return; 123081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers } 123181d425b0b232962441616f8b14f73620bffef5e5Ian Rogers interrupted_ = true; 1232c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers NotifyLocked(self); 123381d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 123481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 123581d425b0b232962441616f8b14f73620bffef5e5Ian Rogersvoid Thread::Notify() { 1236c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers Thread* self = Thread::Current(); 1237c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers MutexLock mu(self, *wait_mutex_); 1238c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers NotifyLocked(self); 123981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 124081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 1241c604d731730b43231f63040c8db1d58304da0cf3Ian Rogersvoid Thread::NotifyLocked(Thread* self) { 124281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers if (wait_monitor_ != NULL) { 1243c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers wait_cond_->Signal(self); 124481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers } 124581d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 124681d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 12470399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass CountStackDepthVisitor : public StackVisitor { 12489b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao public: 124993ba893c20532990a430741e0a97212900094e8cBrian Carlstrom explicit CountStackDepthVisitor(Thread* thread) 1250b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 12517a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers : StackVisitor(thread, NULL), 125208fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes depth_(0), skip_depth_(0), skipping_(true) {} 1253d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 1254b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 125529f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes // We want to skip frames up to and including the exception's constructor. 12569086572fa809d1a19d886b467e4da3ce42016982Ian Rogers // Note we also skip the frame if it doesn't have a method (namely the callee 12579086572fa809d1a19d886b467e4da3ce42016982Ian Rogers // save frame) 1258ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = GetMethod(); 12590399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (skipping_ && !m->IsRuntimeMethod() && 12602dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers !mirror::Throwable::GetJavaLangThrowable()->IsAssignableFrom(m->GetDeclaringClass())) { 126129f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes skipping_ = false; 126229f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 126329f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes if (!skipping_) { 12640399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (!m->IsRuntimeMethod()) { // Ignore runtime frames (in particular callee save). 12656b0870dfaaa2e69a900ad7ed88e4e1d3697445aaIan Rogers ++depth_; 12666b0870dfaaa2e69a900ad7ed88e4e1d3697445aaIan Rogers } 126729f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } else { 126829f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes ++skip_depth_; 126929f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 1270530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 12719b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 12729b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 12739b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao int GetDepth() const { 1274aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers return depth_; 12759b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 12769b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 127729f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes int GetSkipDepth() const { 127829f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes return skip_depth_; 127929f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 128029f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes 12819b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao private: 1282aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers uint32_t depth_; 128329f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes uint32_t skip_depth_; 128429f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes bool skipping_; 12859b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao}; 12869b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 12870399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass BuildInternalStackTraceVisitor : public StackVisitor { 12889b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao public: 12897a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers explicit BuildInternalStackTraceVisitor(Thread* self, Thread* thread, int skip_depth) 12907a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers : StackVisitor(thread, NULL), self_(self), 129108fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes skip_depth_(skip_depth), count_(0), dex_pc_trace_(NULL), method_trace_(NULL) {} 1292283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers 12931f5393447b9f45be7918042d9ee7b521376de866Ian Rogers bool Init(int depth) 1294b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1295aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Allocate method trace with an extra slot that will hold the PC trace 12962dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::ObjectArray<mirror::Object> > 12971f5393447b9f45be7918042d9ee7b521376de866Ian Rogers method_trace(self_, 12982dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers Runtime::Current()->GetClassLinker()->AllocObjectArray<mirror::Object>(self_, 12992dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers depth + 1)); 13000399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (method_trace.get() == NULL) { 1301283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers return false; 1302726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes } 13032dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::IntArray* dex_pc_trace = mirror::IntArray::Alloc(self_, depth); 13040399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (dex_pc_trace == NULL) { 1305283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers return false; 1306726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes } 1307aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Save PC trace in last element of method trace, also places it into the 1308aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // object graph. 13090399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers method_trace->Set(depth, dex_pc_trace); 13100399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Set the Object*s and assert that no thread suspension is now possible. 131152673ffae0025d86f4023735581f19ebcc477487Ian Rogers const char* last_no_suspend_cause = 13121f5393447b9f45be7918042d9ee7b521376de866Ian Rogers self_->StartAssertNoThreadSuspension("Building internal stack trace"); 131352673ffae0025d86f4023735581f19ebcc477487Ian Rogers CHECK(last_no_suspend_cause == NULL) << last_no_suspend_cause; 13140399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers method_trace_ = method_trace.get(); 13150399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers dex_pc_trace_ = dex_pc_trace; 1316283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers return true; 13179b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 13189b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 13190399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers virtual ~BuildInternalStackTraceVisitor() { 132052673ffae0025d86f4023735581f19ebcc477487Ian Rogers if (method_trace_ != NULL) { 13211f5393447b9f45be7918042d9ee7b521376de866Ian Rogers self_->EndAssertNoThreadSuspension(NULL); 132252673ffae0025d86f4023735581f19ebcc477487Ian Rogers } 13230399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 13249b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 1325b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 13260399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (method_trace_ == NULL || dex_pc_trace_ == NULL) { 13277934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom return true; // We're probably trying to fillInStackTrace for an OutOfMemoryError. 1328726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes } 132929f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes if (skip_depth_ > 0) { 133029f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes skip_depth_--; 1331530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 133229f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 1333ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = GetMethod(); 13340399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (m->IsRuntimeMethod()) { 13350399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return true; // Ignore runtime frames (in particular callee save). 13366b0870dfaaa2e69a900ad7ed88e4e1d3697445aaIan Rogers } 13370399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers method_trace_->Set(count_, m); 13380399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers dex_pc_trace_->Set(count_, GetDexPc()); 1339aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers ++count_; 1340530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 13419b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 13429b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 13432dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::Object>* GetInternalStackTrace() const { 13440399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return method_trace_; 13459b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 13469b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 13479b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao private: 13481f5393447b9f45be7918042d9ee7b521376de866Ian Rogers Thread* const self_; 134929f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes // How many more frames to skip. 135029f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes int32_t skip_depth_; 13510399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Current position down stack trace. 1352aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers uint32_t count_; 13530399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Array of dex PC values. 13542dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::IntArray* dex_pc_trace_; 13550399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // An array of the methods on the stack, the last entry is a reference to the PC trace. 13562dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::Object>* method_trace_; 13579b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao}; 13589b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 135964b6d145fa53b8dfb07a8fc2426af13f155d5a4dIan Rogersjobject Thread::CreateInternalStackTrace(const ScopedObjectAccessUnchecked& soa) const { 1360aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Compute depth of stack 13617a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers CountStackDepthVisitor count_visitor(const_cast<Thread*>(this)); 13620399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers count_visitor.WalkStack(); 13639b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao int32_t depth = count_visitor.GetDepth(); 136429f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes int32_t skip_depth = count_visitor.GetSkipDepth(); 13654417536522fd2a9d8215d8672331984769c9520bShih-wei Liao 13661f5393447b9f45be7918042d9ee7b521376de866Ian Rogers // Build internal stack trace. 13677a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers BuildInternalStackTraceVisitor build_trace_visitor(soa.Self(), const_cast<Thread*>(this), 13687a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers skip_depth); 13691f5393447b9f45be7918042d9ee7b521376de866Ian Rogers if (!build_trace_visitor.Init(depth)) { 13701f5393447b9f45be7918042d9ee7b521376de866Ian Rogers return NULL; // Allocation failed. 1371283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers } 13720399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers build_trace_visitor.WalkStack(); 13732dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::Object>* trace = build_trace_visitor.GetInternalStackTrace(); 13747a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers if (kIsDebugBuild) { 13757a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers for (int32_t i = 0; i < trace->GetLength(); ++i) { 13767a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers CHECK(trace->Get(i) != NULL); 13777a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers } 13787a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers } 13797a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers return soa.AddLocalReference<jobjectArray>(trace); 1380aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers} 1381aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 138201158d7a57c8321370667a6045220237d16e0da8Elliott HughesjobjectArray Thread::InternalStackTraceToStackTraceElementArray(JNIEnv* env, jobject internal, 138301158d7a57c8321370667a6045220237d16e0da8Elliott Hughes jobjectArray output_array, int* stack_depth) { 1384aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Transition into runnable state to work on Object*/Array* 138500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(env); 1386aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Decode the internal stack trace into the depth, method trace and PC trace 13872dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::Object>* method_trace = 13882dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers soa.Decode<mirror::ObjectArray<mirror::Object>*>(internal); 13899074b99bfbd5419e340f138a018b673ce71f77e8Ian Rogers int32_t depth = method_trace->GetLength() - 1; 13902dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::IntArray* pc_trace = down_cast<mirror::IntArray*>(method_trace->Get(depth)); 1391aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 1392aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 1393aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 139401158d7a57c8321370667a6045220237d16e0da8Elliott Hughes jobjectArray result; 13952dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::StackTraceElement>* java_traces; 139601158d7a57c8321370667a6045220237d16e0da8Elliott Hughes if (output_array != NULL) { 139701158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Reuse the array we were given. 139801158d7a57c8321370667a6045220237d16e0da8Elliott Hughes result = output_array; 13992dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers java_traces = soa.Decode<mirror::ObjectArray<mirror::StackTraceElement>*>(output_array); 140001158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // ...adjusting the number of frames we'll write to not exceed the array length. 140101158d7a57c8321370667a6045220237d16e0da8Elliott Hughes depth = std::min(depth, java_traces->GetLength()); 140201158d7a57c8321370667a6045220237d16e0da8Elliott Hughes } else { 140301158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Create java_trace array and place in local reference table 140450b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers java_traces = class_linker->AllocStackTraceElementArray(soa.Self(), depth); 140530646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes if (java_traces == NULL) { 140630646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes return NULL; 140730646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 140800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers result = soa.AddLocalReference<jobjectArray>(java_traces); 140901158d7a57c8321370667a6045220237d16e0da8Elliott Hughes } 141001158d7a57c8321370667a6045220237d16e0da8Elliott Hughes 141101158d7a57c8321370667a6045220237d16e0da8Elliott Hughes if (stack_depth != NULL) { 141201158d7a57c8321370667a6045220237d16e0da8Elliott Hughes *stack_depth = depth; 141301158d7a57c8321370667a6045220237d16e0da8Elliott Hughes } 141455df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao 14156d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers MethodHelper mh; 14169b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao for (int32_t i = 0; i < depth; ++i) { 1417aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Prepare parameters for StackTraceElement(String cls, String method, String file, int line) 1418ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* method = down_cast<mirror::ArtMethod*>(method_trace->Get(i)); 14196d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers mh.ChangeMethod(method); 14200399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers uint32_t dex_pc = pc_trace->Get(i); 14210399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers int32_t line_number = mh.GetLineNumFromDexPC(dex_pc); 1422aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Allocate element, potentially triggering GC 142340381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom // TODO: reuse class_name_object via Class::name_? 1424486013193c94b4321414c28ce9251911e14a0599Ian Rogers const char* descriptor = mh.GetDeclaringClassDescriptor(); 1425486013193c94b4321414c28ce9251911e14a0599Ian Rogers CHECK(descriptor != NULL); 1426486013193c94b4321414c28ce9251911e14a0599Ian Rogers std::string class_name(PrettyDescriptor(descriptor)); 14272dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::String> class_name_object(soa.Self(), 14282dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::String::AllocFromModifiedUtf8(soa.Self(), 14292dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers class_name.c_str())); 143040381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom if (class_name_object.get() == NULL) { 143140381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom return NULL; 143240381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom } 1433486013193c94b4321414c28ce9251911e14a0599Ian Rogers const char* method_name = mh.GetName(); 1434486013193c94b4321414c28ce9251911e14a0599Ian Rogers CHECK(method_name != NULL); 14352dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::String> method_name_object(soa.Self(), 14362dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::String::AllocFromModifiedUtf8(soa.Self(), 14372dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers method_name)); 14386d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers if (method_name_object.get() == NULL) { 14396d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers return NULL; 14406d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers } 1441486013193c94b4321414c28ce9251911e14a0599Ian Rogers const char* source_file = mh.GetDeclaringClassSourceFile(); 14422dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::String> source_name_object(soa.Self(), mirror::String::AllocFromModifiedUtf8(soa.Self(), 14432dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers source_file)); 14442dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::StackTraceElement* obj = mirror::StackTraceElement::Alloc(soa.Self(), 14452dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers class_name_object.get(), 14462dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers method_name_object.get(), 14472dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers source_name_object.get(), 14482dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers line_number); 144930646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes if (obj == NULL) { 145030646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes return NULL; 145130646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 1452aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers#ifdef MOVING_GARBAGE_COLLECTOR 1453aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Re-read after potential GC 145400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers java_traces = Decode<ObjectArray<Object>*>(soa.Env(), result); 145500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers method_trace = down_cast<ObjectArray<Object>*>(Decode<Object*>(soa.Env(), internal)); 1456aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers pc_trace = down_cast<IntArray*>(method_trace->Get(depth)); 1457aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers#endif 145855df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao java_traces->Set(i, obj); 145955df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao } 1460aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers return result; 146155df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao} 146255df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao 146362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::ThrowNewExceptionF(const ThrowLocation& throw_location, 146462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* exception_class_descriptor, const char* fmt, ...) { 1465a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes va_list args; 1466a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes va_start(args, fmt); 146762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNewExceptionV(throw_location, exception_class_descriptor, 146862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers fmt, args); 1469a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes va_end(args); 14704a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes} 14714a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes 147262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::ThrowNewExceptionV(const ThrowLocation& throw_location, 147362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* exception_class_descriptor, 147462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* fmt, va_list ap) { 14754a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes std::string msg; 14764a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes StringAppendV(&msg, fmt, ap); 147762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNewException(throw_location, exception_class_descriptor, msg.c_str()); 14785cb5ad27944efb08d4556b3c0d362302e37e832bElliott Hughes} 147937f7a40f6789bb287f287a9af00777af9d6428eeElliott Hughes 148062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::ThrowNewException(const ThrowLocation& throw_location, const char* exception_class_descriptor, 148162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* msg) { 14827934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom AssertNoPendingException(); // Callers should either clear or call ThrowNewWrappedException. 148362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNewWrappedException(throw_location, exception_class_descriptor, msg); 148462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers} 148562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 148662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::ThrowNewWrappedException(const ThrowLocation& throw_location, 148762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* exception_class_descriptor, 148862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* msg) { 148962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK_EQ(this, Thread::Current()); 149062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Ensure we don't forget arguments over object allocation. 149162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::Object> saved_throw_this(this, throw_location.GetThis()); 1492ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom SirtRef<mirror::ArtMethod> saved_throw_method(this, throw_location.GetMethod()); 149362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Ignore the cause throw location. TODO: should we report this as a re-throw? 149462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::Throwable> cause(this, GetException(NULL)); 149562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ClearException(); 149662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers Runtime* runtime = Runtime::Current(); 1497a4f94740f9d66b21f4bcd3a225c434aa29cfa323Elliott Hughes 149862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::ClassLoader* cl = NULL; 149962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (throw_location.GetMethod() != NULL) { 150062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers cl = throw_location.GetMethod()->GetDeclaringClass()->GetClassLoader(); 150162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 150262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::Class> 150362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception_class(this, runtime->GetClassLinker()->FindClass(exception_class_descriptor, cl)); 150462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (UNLIKELY(exception_class.get() == NULL)) { 150530646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes CHECK(IsExceptionPending()); 150662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers LOG(ERROR) << "No exception class " << PrettyDescriptor(exception_class_descriptor); 150730646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes return; 150830646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 150962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 151062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (UNLIKELY(!runtime->GetClassLinker()->EnsureInitialized(exception_class.get(), true, true))) { 151162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK(IsExceptionPending()); 151262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return; 151362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 151462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK(!runtime->IsStarted() || exception_class->IsThrowableClass()); 151562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::Throwable> exception(this, 151662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers down_cast<mirror::Throwable*>(exception_class->AllocObject(this))); 151762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 151862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Choose an appropriate constructor and set up the arguments. 151962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* signature; 152062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::String> msg_string(this, NULL); 152162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (msg != NULL) { 152262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Ensure we remember this and the method over the String allocation. 152362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers msg_string.reset(mirror::String::AllocFromModifiedUtf8(this, msg)); 152462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (UNLIKELY(msg_string.get() == NULL)) { 152562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CHECK(IsExceptionPending()); // OOME. 152662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return; 152762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 152862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (cause.get() == NULL) { 152962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers signature = "(Ljava/lang/String;)V"; 1530ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom } else { 153162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers signature = "(Ljava/lang/String;Ljava/lang/Throwable;)V"; 153262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 153362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 153462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (cause.get() == NULL) { 153562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers signature = "()V"; 153662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 153762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers signature = "(Ljava/lang/Throwable;)V"; 1538ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom } 1539ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom } 1540ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* exception_init_method = 154162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception_class->FindDeclaredDirectMethod("<init>", signature); 154262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 154362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CHECK(exception_init_method != NULL) << "No <init>" << signature << " in " 154462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers << PrettyDescriptor(exception_class_descriptor); 154562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 154662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (UNLIKELY(!runtime->IsStarted())) { 154762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Something is trying to throw an exception without a started runtime, which is the common 154862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // case in the compiler. We won't be able to invoke the constructor of the exception, so set 154962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // the exception fields directly. 155062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (msg != NULL) { 155162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception->SetDetailMessage(msg_string.get()); 155262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 155362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (cause.get() != NULL) { 155462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception->SetCause(cause.get()); 155562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 155662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation gc_safe_throw_location(saved_throw_this.get(), saved_throw_method.get(), 155762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers throw_location.GetDexPc()); 155862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SetException(gc_safe_throw_location, exception.get()); 155962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 156062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ArgArray args("VLL", 3); 156162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers args.Append(reinterpret_cast<uint32_t>(exception.get())); 156262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (msg != NULL) { 156362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers args.Append(reinterpret_cast<uint32_t>(msg_string.get())); 156462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 156562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (cause.get() != NULL) { 156662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers args.Append(reinterpret_cast<uint32_t>(cause.get())); 156762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 156862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers JValue result; 156962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception_init_method->Invoke(this, args.GetArray(), args.GetNumBytes(), &result, 'V'); 157062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (LIKELY(!IsExceptionPending())) { 157162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation gc_safe_throw_location(saved_throw_this.get(), saved_throw_method.get(), 157262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers throw_location.GetDexPc()); 157362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SetException(gc_safe_throw_location, exception.get()); 157462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 157530646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 1576a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes} 1577a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes 15782ced6a534157d5d963693346904389c19775d2daElliott Hughesvoid Thread::ThrowOutOfMemoryError(const char* msg) { 15792ced6a534157d5d963693346904389c19775d2daElliott Hughes LOG(ERROR) << StringPrintf("Throwing OutOfMemoryError \"%s\"%s", 15802ced6a534157d5d963693346904389c19775d2daElliott Hughes msg, (throwing_OutOfMemoryError_ ? " (recursive case)" : "")); 158162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation throw_location = GetCurrentLocationForThrow(); 1582726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes if (!throwing_OutOfMemoryError_) { 1583726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes throwing_OutOfMemoryError_ = true; 158462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNewException(throw_location, "Ljava/lang/OutOfMemoryError;", msg); 158533e15bcb4c0873cbce9d039fbc9bc7f4cf257765Ian Rogers throwing_OutOfMemoryError_ = false; 1586418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes } else { 15877934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom Dump(LOG(ERROR)); // The pre-allocated OOME has no stack, so help out and log one. 158862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SetException(throw_location, Runtime::Current()->GetPreAllocatedOutOfMemoryError()); 1589418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes } 159079082e367845bbd68ec44ef2ddd1be8ef0e1550fElliott Hughes} 159179082e367845bbd68ec44ef2ddd1be8ef0e1550fElliott Hughes 1592498508c1187dc07d3eae5476784cde20f5224d93Elliott HughesThread* Thread::CurrentFromGdb() { 1593accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes return Thread::Current(); 1594accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes} 1595accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1596accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughesvoid Thread::DumpFromGdb() const { 15976b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom std::ostringstream ss; 15986b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom Dump(ss); 1599955724179c6c739524f610023287f56b24dc31deElliott Hughes std::string str(ss.str()); 16006b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom // log to stderr for debugging command line processes 16016b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom std::cerr << str; 16026b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom#ifdef HAVE_ANDROID_OS 16036b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom // log to logcat for debugging frameworks processes 16046b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom LOG(INFO) << str; 16056b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom#endif 1606accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes} 1607accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 160898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughesstruct EntryPointInfo { 160998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes uint32_t offset; 161098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes const char* name; 161198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes}; 1612848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers#define INTERPRETER_ENTRY_POINT_INFO(x) { INTERPRETER_ENTRYPOINT_OFFSET(x).Uint32Value(), #x } 1613848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers#define JNI_ENTRY_POINT_INFO(x) { JNI_ENTRYPOINT_OFFSET(x).Uint32Value(), #x } 1614848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers#define PORTABLE_ENTRY_POINT_INFO(x) { PORTABLE_ENTRYPOINT_OFFSET(x).Uint32Value(), #x } 1615848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers#define QUICK_ENTRY_POINT_INFO(x) { QUICK_ENTRYPOINT_OFFSET(x).Uint32Value(), #x } 161698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughesstatic const EntryPointInfo gThreadEntryPointInfo[] = { 1617848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers INTERPRETER_ENTRY_POINT_INFO(pInterpreterToInterpreterBridge), 1618848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers INTERPRETER_ENTRY_POINT_INFO(pInterpreterToCompiledCodeBridge), 1619848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers JNI_ENTRY_POINT_INFO(pDlsymLookup), 1620848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers PORTABLE_ENTRY_POINT_INFO(pPortableResolutionTrampoline), 1621848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers PORTABLE_ENTRY_POINT_INFO(pPortableToInterpreterBridge), 1622848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pAllocArray), 1623848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pAllocArrayWithAccessCheck), 1624848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pAllocObject), 1625848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pAllocObjectWithAccessCheck), 1626848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pCheckAndAllocArray), 1627848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pCheckAndAllocArrayWithAccessCheck), 1628848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pInstanceofNonTrivial), 1629848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pCanPutArrayElement), 1630848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pCheckCast), 16317655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pInitializeStaticStorage), 1632848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pInitializeTypeAndVerifyAccess), 1633848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pInitializeType), 1634848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pResolveString), 16357655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pSet32Instance), 16367655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pSet32Static), 16377655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pSet64Instance), 16387655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pSet64Static), 16397655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pSetObjInstance), 16407655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pSetObjStatic), 16417655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pGet32Instance), 16427655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pGet32Static), 16437655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pGet64Instance), 16447655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pGet64Static), 16457655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pGetObjInstance), 16467655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pGetObjStatic), 1647848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pHandleFillArrayData), 16487655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodStart), 16497655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodStartSynchronized), 16507655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodEnd), 16517655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodEndSynchronized), 16527655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodEndWithReference), 16537655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodEndWithReferenceSynchronized), 1654848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pLockObject), 1655848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pUnlockObject), 16567655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pCmpgDouble), 16577655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pCmpgFloat), 16587655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pCmplDouble), 16597655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pCmplFloat), 16607655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pFmod), 16617655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pSqrt), 16627655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pL2d), 16637655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pFmodf), 16647655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pL2f), 16657655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pD2iz), 16667655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pF2iz), 16677655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pIdivmod), 16687655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pD2l), 16697655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pF2l), 16707655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pLdiv), 16717655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pLdivmod), 16727655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pLmul), 16737655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pShlLong), 16747655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pShrLong), 16757655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pUshrLong), 16767655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pIndexOf), 16777655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pMemcmp16), 16787655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pStringCompareTo), 16797655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pMemcpy), 1680848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pQuickResolutionTrampoline), 1681848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pQuickToInterpreterBridge), 16827655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pInvokeDirectTrampolineWithAccessCheck), 16837655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pInvokeInterfaceTrampoline), 16847655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pInvokeInterfaceTrampolineWithAccessCheck), 16857655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pInvokeStaticTrampolineWithAccessCheck), 16867655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pInvokeSuperTrampolineWithAccessCheck), 16877655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pInvokeVirtualTrampolineWithAccessCheck), 1688848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pCheckSuspend), 1689848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pTestSuspend), 16907655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pDeliverException), 1691848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pThrowArrayBounds), 1692848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pThrowDivZero), 1693848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pThrowNoSuchMethod), 1694848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pThrowNullPointer), 1695848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pThrowStackOverflow), 169698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes}; 16977655f29fabc0a12765de828914a18314382e5a35Ian Rogers#undef QUICK_ENTRY_POINT_INFO 169898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes 169928fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughesvoid Thread::DumpThreadOffset(std::ostream& os, uint32_t offset, size_t size_of_pointers) { 17007934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom CHECK_EQ(size_of_pointers, 4U); // TODO: support 64-bit targets. 170198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes 1702f69863b3039fc621ff4250e262d2a024d5e79ec8Brian Carlstrom#define DO_THREAD_OFFSET(x) \ 1703f69863b3039fc621ff4250e262d2a024d5e79ec8Brian Carlstrom if (offset == static_cast<uint32_t>(OFFSETOF_VOLATILE_MEMBER(Thread, x))) { \ 1704f69863b3039fc621ff4250e262d2a024d5e79ec8Brian Carlstrom os << # x; \ 1705f69863b3039fc621ff4250e262d2a024d5e79ec8Brian Carlstrom return; \ 1706f69863b3039fc621ff4250e262d2a024d5e79ec8Brian Carlstrom } 1707474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers DO_THREAD_OFFSET(state_and_flags_); 170898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(card_table_); 170998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(exception_); 171007ec8e17c978e3bda0202693e6432b56349a5867Ian Rogers DO_THREAD_OFFSET(opeer_); 171198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(jni_env_); 171298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(self_); 171398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(stack_end_); 171498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(suspend_count_); 171598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(thin_lock_id_); 17167934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom // DO_THREAD_OFFSET(top_of_managed_stack_); 17177934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom // DO_THREAD_OFFSET(top_of_managed_stack_pc_); 171898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(top_sirt_); 171928fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes#undef DO_THREAD_OFFSET 172098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes 172198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes size_t entry_point_count = arraysize(gThreadEntryPointInfo); 17227655f29fabc0a12765de828914a18314382e5a35Ian Rogers CHECK_EQ(entry_point_count * size_of_pointers, 1723848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers sizeof(InterpreterEntryPoints) + sizeof(JniEntryPoints) + sizeof(PortableEntryPoints) + 1724848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers sizeof(QuickEntryPoints)); 1725848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers uint32_t expected_offset = OFFSETOF_MEMBER(Thread, interpreter_entrypoints_); 172698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes for (size_t i = 0; i < entry_point_count; ++i) { 1727474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers CHECK_EQ(gThreadEntryPointInfo[i].offset, expected_offset) << gThreadEntryPointInfo[i].name; 172898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes expected_offset += size_of_pointers; 172998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes if (gThreadEntryPointInfo[i].offset == offset) { 173098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes os << gThreadEntryPointInfo[i].name; 173198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes return; 173298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes } 173398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes } 173498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes os << offset; 173528fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes} 173628fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes 17370399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersstatic const bool kDebugExceptionDelivery = false; 17380399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass CatchBlockStackVisitor : public StackVisitor { 1739bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers public: 174062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CatchBlockStackVisitor(Thread* self, const ThrowLocation& throw_location, 174162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Throwable* exception, bool is_deoptimization) 1742b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 17437a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers : StackVisitor(self, self->GetLongJumpContext()), 174462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers self_(self), exception_(exception), is_deoptimization_(is_deoptimization), 174562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers to_find_(is_deoptimization ? NULL : exception->GetClass()), throw_location_(throw_location), 174662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers handler_quick_frame_(NULL), handler_quick_frame_pc_(0), handler_dex_pc_(0), 1747c449aa8151bf81d93d22ff24677ccf09a6da218eIan Rogers native_method_count_(0), clear_exception_(false), 174862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers method_tracing_active_(is_deoptimization || 174962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers Runtime::Current()->GetInstrumentation()->AreExitStubsInstalled()), 175062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers instrumentation_frames_to_pop_(0), top_shadow_frame_(NULL), prev_shadow_frame_(NULL) { 175152673ffae0025d86f4023735581f19ebcc477487Ian Rogers // Exception not in root sets, can't allow GC. 175252673ffae0025d86f4023735581f19ebcc477487Ian Rogers last_no_assert_suspension_cause_ = self->StartAssertNoThreadSuspension("Finding catch block"); 175352673ffae0025d86f4023735581f19ebcc477487Ian Rogers } 175452673ffae0025d86f4023735581f19ebcc477487Ian Rogers 175552673ffae0025d86f4023735581f19ebcc477487Ian Rogers ~CatchBlockStackVisitor() { 175652673ffae0025d86f4023735581f19ebcc477487Ian Rogers LOG(FATAL) << "UNREACHABLE"; // Expected to take long jump. 175767375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers } 1758bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 175962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1760ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* method = GetMethod(); 1761530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes if (method == NULL) { 17620399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // This is the upcall, we remember the frame and last pc so that we may long jump to them. 17630399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers handler_quick_frame_pc_ = GetCurrentQuickFramePc(); 17640399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers handler_quick_frame_ = GetCurrentQuickFrame(); 176557b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return false; // End stack walk. 1766530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes } else { 176762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (UNLIKELY(method_tracing_active_ && 1768848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers GetQuickInstrumentationExitPc() == GetReturnPc())) { 176962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Keep count of the number of unwinds during instrumentation. 177062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers instrumentation_frames_to_pop_++; 17710399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 177262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (method->IsRuntimeMethod()) { 177362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Ignore callee save method. 177462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK(method->IsCalleeSaveMethod()); 177562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return true; 177662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else if (is_deoptimization_) { 177762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return HandleDeoptimization(method); 17780399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } else { 177962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return HandleTryItems(method); 1780bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers } 1781530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes } 178262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 178362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 1784ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom bool HandleTryItems(mirror::ArtMethod* method) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 178562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers uint32_t dex_pc = DexFile::kDexNoIndex; 178662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (method->IsNative()) { 178762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers native_method_count_++; 178862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 178962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers dex_pc = GetDexPc(); 179062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 1791530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes if (dex_pc != DexFile::kDexNoIndex) { 1792c449aa8151bf81d93d22ff24677ccf09a6da218eIan Rogers uint32_t found_dex_pc = method->FindCatchBlock(to_find_, dex_pc, &clear_exception_); 1793530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes if (found_dex_pc != DexFile::kDexNoIndex) { 17940399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers handler_dex_pc_ = found_dex_pc; 17950c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers handler_quick_frame_pc_ = method->ToNativePc(found_dex_pc); 17960399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers handler_quick_frame_ = GetCurrentQuickFrame(); 179757b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return false; // End stack walk. 1798bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers } 17991a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 180057b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return true; // Continue stack walk. 18011a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 18021a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 1803ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom bool HandleDeoptimization(mirror::ArtMethod* m) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 180462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers MethodHelper mh(m); 180562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const DexFile::CodeItem* code_item = mh.GetCodeItem(); 180662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CHECK(code_item != NULL); 180762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers uint16_t num_regs = code_item->registers_size_; 180862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers uint32_t dex_pc = GetDexPc(); 180962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const Instruction* inst = Instruction::At(code_item->insns_ + dex_pc); 181062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers uint32_t new_dex_pc = dex_pc + inst->SizeInCodeUnits(); 181162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ShadowFrame* new_frame = ShadowFrame::Create(num_regs, NULL, m, new_dex_pc); 181262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers verifier::MethodVerifier verifier(&mh.GetDexFile(), mh.GetDexCache(), mh.GetClassLoader(), 181362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mh.GetClassDefIndex(), code_item, 1814ee9889502a34a08741a6f8ecc02917202de9d773Jeff Hao m->GetDexMethodIndex(), m, m->GetAccessFlags(), false, true); 181562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers verifier.Verify(); 181662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers std::vector<int32_t> kinds = verifier.DescribeVRegs(dex_pc); 1817df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstrom for (uint16_t reg = 0; reg < num_regs; reg++) { 181862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers VRegKind kind = static_cast<VRegKind>(kinds.at(reg * 2)); 181962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers switch (kind) { 182062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers case kUndefined: 182162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers new_frame->SetVReg(reg, 0xEBADDE09); 182262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers break; 182362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers case kConstant: 182462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers new_frame->SetVReg(reg, kinds.at((reg * 2) + 1)); 182562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers break; 182662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers case kReferenceVReg: 182762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers new_frame->SetVRegReference(reg, 182862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers reinterpret_cast<mirror::Object*>(GetVReg(m, reg, kind))); 182962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers break; 183062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers default: 183162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers new_frame->SetVReg(reg, GetVReg(m, reg, kind)); 183262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers break; 183362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 183462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 183562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (prev_shadow_frame_ != NULL) { 183662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers prev_shadow_frame_->SetLink(new_frame); 183762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 183862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers top_shadow_frame_ = new_frame; 183962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 184062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers prev_shadow_frame_ = new_frame; 184162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return true; 184262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 184362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 1844b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers void DoLongJump() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1845ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* catch_method = *handler_quick_frame_; 184662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (catch_method == NULL) { 184762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (kDebugExceptionDelivery) { 18480399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers LOG(INFO) << "Handler is upcall"; 184962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 185062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 185162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CHECK(!is_deoptimization_); 185262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (kDebugExceptionDelivery) { 18534445a7e3398a6143939168097a3aa275b734504dIan Rogers const DexFile& dex_file = *catch_method->GetDeclaringClass()->GetDexCache()->GetDexFile(); 18540399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers int line_number = dex_file.GetLineNumFromPC(catch_method, handler_dex_pc_); 18550399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers LOG(INFO) << "Handler: " << PrettyMethod(catch_method) << " (line: " << line_number << ")"; 18560399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 18570399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 1858c449aa8151bf81d93d22ff24677ccf09a6da218eIan Rogers if (clear_exception_) { 1859c449aa8151bf81d93d22ff24677ccf09a6da218eIan Rogers // Exception was cleared as part of delivery. 1860c449aa8151bf81d93d22ff24677ccf09a6da218eIan Rogers DCHECK(!self_->IsExceptionPending()); 1861c449aa8151bf81d93d22ff24677ccf09a6da218eIan Rogers } else { 1862c449aa8151bf81d93d22ff24677ccf09a6da218eIan Rogers // Put exception back in root set with clear throw location. 1863c449aa8151bf81d93d22ff24677ccf09a6da218eIan Rogers self_->SetException(ThrowLocation(), exception_); 1864c449aa8151bf81d93d22ff24677ccf09a6da218eIan Rogers } 186552673ffae0025d86f4023735581f19ebcc477487Ian Rogers self_->EndAssertNoThreadSuspension(last_no_assert_suspension_cause_); 186662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Do instrumentation events after allowing thread suspension again. 186762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers instrumentation::Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation(); 186862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers for (size_t i = 0; i < instrumentation_frames_to_pop_; ++i) { 186962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // We pop the instrumentation stack here so as not to corrupt it during the stack walk. 1870fb2802da02337309ac64970e06c90bb3b1b1de3fJeff Hao if (i != instrumentation_frames_to_pop_ - 1 || self_->GetInstrumentationStack()->front().method_ != catch_method) { 1871fb2802da02337309ac64970e06c90bb3b1b1de3fJeff Hao // Don't pop the instrumentation frame of the catch handler. 1872fb2802da02337309ac64970e06c90bb3b1b1de3fJeff Hao instrumentation->PopMethodForUnwind(self_, is_deoptimization_); 1873fb2802da02337309ac64970e06c90bb3b1b1de3fJeff Hao } 187462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 187562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (!is_deoptimization_) { 187662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers instrumentation->ExceptionCaughtEvent(self_, throw_location_, catch_method, handler_dex_pc_, 187762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception_); 187862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 187962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // TODO: proper return value. 188062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers self_->SetDeoptimizationShadowFrame(top_shadow_frame_); 188162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 18820399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Place context back on thread so it will be available when we continue. 18830399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers self_->ReleaseLongJumpContext(context_); 18840399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers context_->SetSP(reinterpret_cast<uintptr_t>(handler_quick_frame_)); 18850399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers CHECK_NE(handler_quick_frame_pc_, 0u); 18860399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers context_->SetPC(handler_quick_frame_pc_); 18870399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers context_->SmashCallerSaves(); 18880399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers context_->DoLongJump(); 18890399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 18900399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 18910399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers private: 189262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers Thread* const self_; 189362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Throwable* const exception_; 189462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const bool is_deoptimization_; 18950399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // The type of the exception catch block to find. 189662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Class* const to_find_; 189762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Location of the throw. 189862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const ThrowLocation& throw_location_; 18990399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Quick frame with found handler or last frame if no handler found. 1900ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod** handler_quick_frame_; 19010399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // PC to branch to for the handler. 19020399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers uintptr_t handler_quick_frame_pc_; 19030399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Associated dex PC. 19040399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers uint32_t handler_dex_pc_; 190567375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers // Number of native methods passed in crawl (equates to number of SIRTs to pop) 190667375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers uint32_t native_method_count_; 1907c449aa8151bf81d93d22ff24677ccf09a6da218eIan Rogers // Should the exception be cleared as the catch block has no move-exception? 1908c449aa8151bf81d93d22ff24677ccf09a6da218eIan Rogers bool clear_exception_; 190957b86d47b66322693a070185fadfb43cb9c12eabIan Rogers // Is method tracing active? 191057b86d47b66322693a070185fadfb43cb9c12eabIan Rogers const bool method_tracing_active_; 191152673ffae0025d86f4023735581f19ebcc477487Ian Rogers // Support for nesting no thread suspension checks. 191252673ffae0025d86f4023735581f19ebcc477487Ian Rogers const char* last_no_assert_suspension_cause_; 191362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Number of frames to pop in long jump. 191462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers size_t instrumentation_frames_to_pop_; 191562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ShadowFrame* top_shadow_frame_; 191662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ShadowFrame* prev_shadow_frame_; 1917bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers}; 1918bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 191994d6df471a406a03bb1afba8ca3ae9c0fbf366b5jeffhaovoid Thread::QuickDeliverException() { 192062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Get exception from thread. 192162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation throw_location; 192262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Throwable* exception = GetException(&throw_location); 1923ff1ed4770bf7ff024a807b9f909b1a26abb78341Ian Rogers CHECK(exception != NULL); 192428ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers // Don't leave exception visible while we try to find the handler, which may cause class 1925d07986fad0d08cdf05505cf9230714a2cf0dd9aeElliott Hughes // resolution. 192628ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers ClearException(); 192762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers bool is_deoptimization = (exception == reinterpret_cast<mirror::Throwable*>(-1)); 192828ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (kDebugExceptionDelivery) { 192962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (!is_deoptimization) { 193062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::String* msg = exception->GetDetailMessage(); 193162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers std::string str_msg(msg != NULL ? msg->ToModifiedUtf8() : ""); 193262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DumpStack(LOG(INFO) << "Delivering exception: " << PrettyTypeOf(exception) 193362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers << ": " << str_msg << "\n"); 193462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 193562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DumpStack(LOG(INFO) << "Deoptimizing: "); 193662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 193728ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 193862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CatchBlockStackVisitor catch_finder(this, throw_location, exception, is_deoptimization); 19390399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers catch_finder.WalkStack(true); 19400399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers catch_finder.DoLongJump(); 19419a8a8889418e09bf2d4ae3f683fbb40a71c3c8f4Ian Rogers LOG(FATAL) << "UNREACHABLE"; 1942bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers} 1943bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 1944bdb0391258abc54bf77c676e36847d28a783bfe5Ian RogersContext* Thread::GetLongJumpContext() { 194585d1545e985ac689db4bad7849880e843707c862Elliott Hughes Context* result = long_jump_context_; 1946bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers if (result == NULL) { 1947bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers result = Context::Create(); 19480399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } else { 19490399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers long_jump_context_ = NULL; // Avoid context being shared. 19506702243ea2332b566d8e8b871cc9db0906d835adMathieu Chartier result->Reset(); 19511a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 1952bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers return result; 19531a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao} 19541a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 195562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersstruct CurrentMethodVisitor : public StackVisitor { 195662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CurrentMethodVisitor(Thread* thread, Context* context) 195762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 195862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers : StackVisitor(thread, context), this_object_(NULL), method_(NULL), dex_pc_(0) {} 195962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers virtual bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1960ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = GetMethod(); 196162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (m->IsRuntimeMethod()) { 196262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Continue if this is a runtime method. 196362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return true; 196462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 196562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (context_ != NULL) { 196662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers this_object_ = GetThisObject(); 19670399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 196862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers method_ = m; 196962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers dex_pc_ = GetDexPc(); 197062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return false; 197162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 197262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Object* this_object_; 1973ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* method_; 197462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers uint32_t dex_pc_; 197562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers}; 19760399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 1977ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrommirror::ArtMethod* Thread::GetCurrentMethod(uint32_t* dex_pc) const { 197862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CurrentMethodVisitor visitor(const_cast<Thread*>(this), NULL); 19790399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers visitor.WalkStack(false); 19800399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (dex_pc != NULL) { 19810399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers *dex_pc = visitor.dex_pc_; 1982d07986fad0d08cdf05505cf9230714a2cf0dd9aeElliott Hughes } 19830399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return visitor.method_; 1984ee0d3fb2fbd736484fe8c3177a4e965ea86d1c65TDYa} 198533dc7717cd16592bcc825350bea6305be9eb2ea1jeffhao 198662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian RogersThrowLocation Thread::GetCurrentLocationForThrow() { 198762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers Context* context = GetLongJumpContext(); 198862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CurrentMethodVisitor visitor(this, context); 198962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers visitor.WalkStack(false); 199062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ReleaseLongJumpContext(context); 199162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return ThrowLocation(visitor.this_object_, visitor.method_, visitor.dex_pc_); 199262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers} 199362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 19942dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersbool Thread::HoldsLock(mirror::Object* object) { 19955f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes if (object == NULL) { 19965f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes return false; 19975f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 199824a3c2e9924e8765c4a9b4d383cb8f3b922f9c9fBrian Carlstrom return object->GetThinLockId() == thin_lock_id_; 19995f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes} 20005f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes 200140e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogers// RootVisitor parameters are: (const Object* obj, size_t vreg, const StackVisitor* visitor). 200240e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogerstemplate <typename RootVisitor> 20030399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass ReferenceMapVisitor : public StackVisitor { 2004d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers public: 20057a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers ReferenceMapVisitor(Thread* thread, Context* context, const RootVisitor& visitor) 2006b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 20077a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers : StackVisitor(thread, context), visitor_(visitor) {} 2008d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 2009b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 20106a4be3a6226cec645cf905dd352e44f7968a7fa4Brian Carlstrom if (false) { 20110399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers LOG(INFO) << "Visiting stack roots in " << PrettyMethod(GetMethod()) 20120399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers << StringPrintf("@ PC:%04x", GetDexPc()); 20136a4be3a6226cec645cf905dd352e44f7968a7fa4Brian Carlstrom } 20140399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ShadowFrame* shadow_frame = GetCurrentShadowFrame(); 20150399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (shadow_frame != NULL) { 2016ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = shadow_frame->GetMethod(); 2017ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa size_t num_regs = shadow_frame->NumberOfVRegs(); 2018ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa if (m->IsNative() || shadow_frame->HasReferenceArray()) { 2019ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa // SIRT for JNI or References for interpreter. 2020ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa for (size_t reg = 0; reg < num_regs; ++reg) { 20212dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* ref = shadow_frame->GetVRegReference(reg); 2022ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa if (ref != NULL) { 2023ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa visitor_(ref, reg, this); 2024ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 2025ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 2026ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } else { 2027ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa // Java method. 2028ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa // Portable path use DexGcMap and store in Method.native_gc_map_. 2029ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa const uint8_t* gc_map = m->GetNativeGcMap(); 2030ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa CHECK(gc_map != NULL) << PrettyMethod(m); 2031ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa uint32_t gc_map_length = static_cast<uint32_t>((gc_map[0] << 24) | 2032ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa (gc_map[1] << 16) | 2033ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa (gc_map[2] << 8) | 2034ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa (gc_map[3] << 0)); 2035ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa verifier::DexPcToReferenceMap dex_gc_map(gc_map + 4, gc_map_length); 2036ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa uint32_t dex_pc = GetDexPc(); 2037ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa const uint8_t* reg_bitmap = dex_gc_map.FindBitMap(dex_pc); 2038ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa DCHECK(reg_bitmap != NULL); 2039ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa num_regs = std::min(dex_gc_map.RegWidth() * 8, num_regs); 2040ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa for (size_t reg = 0; reg < num_regs; ++reg) { 2041ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa if (TestBitmap(reg, reg_bitmap)) { 20422dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* ref = shadow_frame->GetVRegReference(reg); 2043ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa if (ref != NULL) { 2044ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa visitor_(ref, reg, this); 2045ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 2046ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 2047ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 2048ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 20490399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } else { 2050ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = GetMethod(); 20510399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Process register map (which native and runtime methods don't have) 2052640495bd1aebcd0b429d59f62b57d0c984b2d8c6Ian Rogers if (!m->IsNative() && !m->IsRuntimeMethod() && !m->IsProxyMethod()) { 20530c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const uint8_t* native_gc_map = m->GetNativeGcMap(); 20540c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers CHECK(native_gc_map != NULL) << PrettyMethod(m); 20550c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers mh_.ChangeMethod(m); 20560c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const DexFile::CodeItem* code_item = mh_.GetCodeItem(); 20577934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom DCHECK(code_item != NULL) << PrettyMethod(m); // Can't be NULL or how would we compile its instructions? 20580c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers NativePcOffsetToReferenceMap map(native_gc_map); 20590399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers size_t num_regs = std::min(map.RegWidth() * 8, 20600399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers static_cast<size_t>(code_item->registers_size_)); 20610c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers if (num_regs > 0) { 20620c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const uint8_t* reg_bitmap = map.FindBitMap(GetNativePcOffset()); 20630c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers DCHECK(reg_bitmap != NULL); 20641809a72a66d245ae598582d658b93a24ac3bf01eIan Rogers const VmapTable vmap_table(m->GetVmapTable()); 20650c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t core_spills = m->GetCoreSpillMask(); 20660c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t fp_spills = m->GetFpSpillMask(); 20670c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers size_t frame_size = m->GetFrameSizeInBytes(); 20680c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // For all dex registers in the bitmap 2069ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod** cur_quick_frame = GetCurrentQuickFrame(); 20700c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers DCHECK(cur_quick_frame != NULL); 20710c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers for (size_t reg = 0; reg < num_regs; ++reg) { 20720c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // Does this register hold a reference? 20730c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers if (TestBitmap(reg, reg_bitmap)) { 20740c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t vmap_offset; 20752dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* ref; 20761809a72a66d245ae598582d658b93a24ac3bf01eIan Rogers if (vmap_table.IsInContext(reg, kReferenceVReg, &vmap_offset)) { 20772bcb4a496b7aa00d996df3a070524f7568fb35a1Ian Rogers uintptr_t val = GetGPR(vmap_table.ComputeRegister(core_spills, vmap_offset, 20782bcb4a496b7aa00d996df3a070524f7568fb35a1Ian Rogers kReferenceVReg)); 20792dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers ref = reinterpret_cast<mirror::Object*>(val); 20800c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers } else { 20812dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers ref = reinterpret_cast<mirror::Object*>(GetVReg(cur_quick_frame, code_item, 20822dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers core_spills, fp_spills, frame_size, 20832dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers reg)); 20846f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier } 20856f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 20866f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier if (ref != NULL) { 208740e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogers visitor_(ref, reg, this); 20880399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 2089d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 20904f894e385e8ac018f078be75fea0a45696626b15Shih-wei Liao } 2091d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 2092d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 2093d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 2094530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 2095d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 2096d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 2097d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers private: 20986f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier static bool TestBitmap(int reg, const uint8_t* reg_vector) { 2099d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers return ((reg_vector[reg / 8] >> (reg % 8)) & 0x01) != 0; 2100d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 2101d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 21026f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier // Visitor for when we visit a root. 210340e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogers const RootVisitor& visitor_; 21046f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21050c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // A method helper we keep around to avoid dex file/cache re-computations. 21060c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers MethodHelper mh_; 2107d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers}; 2108d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 21096f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartierclass RootCallbackVisitor { 21106f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier public: 21110cd7ec2dcd8d7ba30bf3ca420b40dac52849876cBrian Carlstrom RootCallbackVisitor(RootVisitor* visitor, void* arg) : visitor_(visitor), arg_(arg) {} 21126f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21132dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers void operator()(const mirror::Object* obj, size_t, const StackVisitor*) const { 21146f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier visitor_(obj, arg_); 21156f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier } 21166f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21176f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier private: 21182dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers RootVisitor* visitor_; 21196f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier void* arg_; 21206f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier}; 21216f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21226f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartierclass VerifyCallbackVisitor { 21236f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier public: 21242dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers VerifyCallbackVisitor(VerifyRootVisitor* visitor, void* arg) 21256f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier : visitor_(visitor), 21266f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier arg_(arg) { 21276f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier } 21286f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21292dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers void operator()(const mirror::Object* obj, size_t vreg, const StackVisitor* visitor) const { 213040e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogers visitor_(obj, arg_, vreg, visitor); 21316f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier } 21326f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21336f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier private: 21342dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers VerifyRootVisitor* const visitor_; 213540e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogers void* const arg_; 21366f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier}; 21376f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21386f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartierstruct VerifyRootWrapperArg { 21392dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers VerifyRootVisitor* visitor; 21406f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier void* arg; 21416f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier}; 21426f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21432dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersstatic void VerifyRootWrapperCallback(const mirror::Object* root, void* arg) { 21446f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier VerifyRootWrapperArg* wrapperArg = reinterpret_cast<VerifyRootWrapperArg*>(arg); 21456f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier wrapperArg->visitor(root, wrapperArg->arg, 0, NULL); 21466f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier} 21476f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21482dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersvoid Thread::VerifyRoots(VerifyRootVisitor* visitor, void* arg) { 21496f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier // We need to map from a RootVisitor to VerifyRootVisitor, so pass in nulls for arguments we 21506f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier // don't have. 21516f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier VerifyRootWrapperArg wrapperArg; 21526f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier wrapperArg.arg = arg; 21536f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier wrapperArg.visitor = visitor; 21546f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 2155cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (opeer_ != NULL) { 2156cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers VerifyRootWrapperCallback(opeer_, &wrapperArg); 2157cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers } 21586f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier if (exception_ != NULL) { 21596f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier VerifyRootWrapperCallback(exception_, &wrapperArg); 21606f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier } 216162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers throw_location_.VisitRoots(VerifyRootWrapperCallback, &wrapperArg); 21626f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier if (class_loader_override_ != NULL) { 21636f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier VerifyRootWrapperCallback(class_loader_override_, &wrapperArg); 21646f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier } 21656f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier jni_env_->locals.VisitRoots(VerifyRootWrapperCallback, &wrapperArg); 21666f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier jni_env_->monitors.VisitRoots(VerifyRootWrapperCallback, &wrapperArg); 21676f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21686f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier SirtVisitRoots(VerifyRootWrapperCallback, &wrapperArg); 21696f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21706f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier // Visit roots on this thread's stack 21716f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier Context* context = GetLongJumpContext(); 21726f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier VerifyCallbackVisitor visitorToCallback(visitor, arg); 21737a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers ReferenceMapVisitor<VerifyCallbackVisitor> mapper(this, context, visitorToCallback); 21746f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier mapper.WalkStack(); 21756f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier ReleaseLongJumpContext(context); 217662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 217762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers std::deque<instrumentation::InstrumentationStackFrame>* instrumentation_stack = GetInstrumentationStack(); 217862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers typedef std::deque<instrumentation::InstrumentationStackFrame>::const_iterator It; 217962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers for (It it = instrumentation_stack->begin(), end = instrumentation_stack->end(); it != end; ++it) { 218062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Object* this_object = (*it).this_object_; 218162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (this_object != NULL) { 218262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers VerifyRootWrapperCallback(this_object, &wrapperArg); 218362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 2184ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* method = (*it).method_; 218562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers VerifyRootWrapperCallback(method, &wrapperArg); 218662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 21876f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier} 21886f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21892dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersvoid Thread::VisitRoots(RootVisitor* visitor, void* arg) { 2190cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (opeer_ != NULL) { 2191cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers visitor(opeer_, arg); 2192cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers } 2193d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes if (exception_ != NULL) { 2194d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes visitor(exception_, arg); 2195d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 219662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers throw_location_.VisitRoots(visitor, arg); 219740381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom if (class_loader_override_ != NULL) { 219840381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom visitor(class_loader_override_, arg); 219940381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom } 2200410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes jni_env_->locals.VisitRoots(visitor, arg); 2201410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes jni_env_->monitors.VisitRoots(visitor, arg); 22028dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao 22038dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao SirtVisitRoots(visitor, arg); 22048dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao 2205d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers // Visit roots on this thread's stack 22060399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers Context* context = GetLongJumpContext(); 22076f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier RootCallbackVisitor visitorToCallback(visitor, arg); 22087a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers ReferenceMapVisitor<RootCallbackVisitor> mapper(this, context, visitorToCallback); 22090399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers mapper.WalkStack(); 22100399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ReleaseLongJumpContext(context); 221162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 221262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers std::deque<instrumentation::InstrumentationStackFrame>* instrumentation_stack = GetInstrumentationStack(); 221362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers typedef std::deque<instrumentation::InstrumentationStackFrame>::const_iterator It; 221462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers for (It it = instrumentation_stack->begin(), end = instrumentation_stack->end(); it != end; ++it) { 221562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Object* this_object = (*it).this_object_; 221662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (this_object != NULL) { 221762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers visitor(this_object, arg); 221862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 2219ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* method = (*it).method_; 222062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers visitor(method, arg); 222162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 2222410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes} 2223410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes 222404d7aa92bc5548bc4d272b9480614f06248194ccIan Rogersstatic void VerifyObject(const mirror::Object* root, void* arg) { 22251d54e73444e017d3a65234e0f193846f3e27472bIan Rogers gc::Heap* heap = reinterpret_cast<gc::Heap*>(arg); 222604d7aa92bc5548bc4d272b9480614f06248194ccIan Rogers heap->VerifyObject(root); 2227250455229aa0cc07bbd18174efe510bd52631a99jeffhao} 2228250455229aa0cc07bbd18174efe510bd52631a99jeffhao 222904d7aa92bc5548bc4d272b9480614f06248194ccIan Rogersvoid Thread::VerifyStackImpl() { 2230e66ac79b90a12b01b9d67ee9f7f586e638e67fabjeffhao UniquePtr<Context> context(Context::Create()); 22314eb68edeecc4d6641bcca2a40620631335e7cadcjeffhao RootCallbackVisitor visitorToCallback(VerifyObject, Runtime::Current()->GetHeap()); 223204d7aa92bc5548bc4d272b9480614f06248194ccIan Rogers ReferenceMapVisitor<RootCallbackVisitor> mapper(this, context.get(), visitorToCallback); 22330399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers mapper.WalkStack(); 2234250455229aa0cc07bbd18174efe510bd52631a99jeffhao} 2235250455229aa0cc07bbd18174efe510bd52631a99jeffhao 223600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers// Set the stack end to that to be used during a stack overflow 223700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::SetStackEndForStackOverflow() { 22387571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom // During stack overflow we allow use of the full stack. 223900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (stack_end_ == stack_begin_) { 22407571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom // However, we seem to have already extended to use the full stack. 22417571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom LOG(ERROR) << "Need to increase kStackOverflowReservedBytes (currently " 22427571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom << kStackOverflowReservedBytes << ")?"; 22437571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom DumpStack(LOG(ERROR)); 22447571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom LOG(FATAL) << "Recursive stack overflow."; 224500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 224600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 224700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers stack_end_ = stack_begin_; 224800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 224900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 2250330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughesstd::ostream& operator<<(std::ostream& os, const Thread& thread) { 225100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers thread.ShortDump(os); 2252330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes return os; 2253330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes} 2254330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes 22558daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes} // namespace art 2256