thread.cc revision 8171fc34bf74ed0df02385787d916bc13eb7f160
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 1113b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchivoid ResetQuickAllocEntryPoints(QuickEntryPoints* qpoints); 1123b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchi 1133b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchivoid Thread::ResetQuickAllocEntryPointsForThread() { 1143b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchi ResetQuickAllocEntryPoints(&quick_entrypoints_); 1153b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchi} 1163b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchi 11762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::SetDeoptimizationShadowFrame(ShadowFrame* sf) { 11862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers deoptimization_shadow_frame_ = sf; 1193ea4ec5629613013ad9b0d7a69abdb94491ac46fbuzbee} 1203ea4ec5629613013ad9b0d7a69abdb94491ac46fbuzbee 12162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::SetDeoptimizationReturnValue(const JValue& ret_val) { 122306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers deoptimization_return_value_.SetJ(ret_val.GetJ()); 123306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers} 124306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers 125306057fd278d75bf3794bd5243a3b6652c487d18Ian RogersShadowFrame* Thread::GetAndClearDeoptimizationShadowFrame(JValue* ret_val) { 126306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers ShadowFrame* sf = deoptimization_shadow_frame_; 127306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers deoptimization_shadow_frame_ = NULL; 128306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers ret_val->SetJ(deoptimization_return_value_.GetJ()); 129306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers return sf; 130306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers} 131306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers 132caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstromvoid Thread::InitTid() { 133caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom tid_ = ::art::GetTid(); 134caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom} 135caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom 136caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstromvoid Thread::InitAfterFork() { 1378029cbe626a467b344ff84d86170d757aa12ecd4Elliott Hughes // One thread (us) survived the fork, but we have a new tid so we need to 1388029cbe626a467b344ff84d86170d757aa12ecd4Elliott Hughes // update the value stashed in this Thread*. 139caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom InitTid(); 140caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom} 141caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom 14278128a63b2615744760b7f8ab83df9764a5d4a95Brian Carlstromvoid* Thread::CreateCallback(void* arg) { 14393e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes Thread* self = reinterpret_cast<Thread*>(arg); 144120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime* runtime = Runtime::Current(); 145120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (runtime == NULL) { 146120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << "Thread attaching to non-existent runtime: " << *self; 147120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers return NULL; 148120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 149120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers { 15050b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers // TODO: pass self to MutexLock - requires self to equal Thread::Current(), which is only true 15150b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers // after self->Init(). 15250b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers MutexLock mu(NULL, *Locks::runtime_shutdown_lock_); 153120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Check that if we got here we cannot be shutting down (as shutdown should never have started 154120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // while threads are being born). 155590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier CHECK(!runtime->IsShuttingDownLocked()); 156120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers self->Init(runtime->GetThreadList(), runtime->GetJavaVM()); 157120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime::Current()->EndThreadBirth(); 158120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 15947179f76e3f03fe3eb21dfb081d50733ca316371Elliott Hughes { 16000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(self); 161cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers 162cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers // Copy peer into self, deleting global reference when done. 163cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers CHECK(self->jpeer_ != NULL); 1642dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers self->opeer_ = soa.Decode<mirror::Object*>(self->jpeer_); 165cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers self->GetJniEnv()->DeleteGlobalRef(self->jpeer_); 166cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers self->jpeer_ = NULL; 167cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers 168365c10235438607541fa2259a5fec48061b90bd8Ian Rogers { 1692dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::String> thread_name(self, self->GetThreadName(soa)); 170365c10235438607541fa2259a5fec48061b90bd8Ian Rogers self->SetThreadName(thread_name->ToModifiedUtf8().c_str()); 171365c10235438607541fa2259a5fec48061b90bd8Ian Rogers } 172365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Dbg::PostThreadStart(self); 17393e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 174365c10235438607541fa2259a5fec48061b90bd8Ian Rogers // Invoke the 'run' method of our java.lang.Thread. 1752dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* receiver = self->opeer_; 176365c10235438607541fa2259a5fec48061b90bd8Ian Rogers jmethodID mid = WellKnownClasses::java_lang_Thread_run; 177ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = 178cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers receiver->GetClass()->FindVirtualMethodForVirtualOrInterface(soa.DecodeMethod(mid)); 1795d9173014c1ca09f7249a6b07629aa37778b5f8fJeff Hao JValue result; 1805d9173014c1ca09f7249a6b07629aa37778b5f8fJeff Hao ArgArray arg_array(NULL, 0); 1815d9173014c1ca09f7249a6b07629aa37778b5f8fJeff Hao arg_array.Append(reinterpret_cast<uint32_t>(receiver)); 1826474d190d5604898354ebf767f1944b6e3e9b445Jeff Hao m->Invoke(self, arg_array.GetArray(), arg_array.GetNumBytes(), &result, 'V'); 183365c10235438607541fa2259a5fec48061b90bd8Ian Rogers } 18400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Detach and delete self. 18500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Runtime::Current()->GetThreadList()->Unregister(self); 18693e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 187b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro return NULL; 188b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro} 189b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 1902dd0e2cea360bc9206eb88ecc40d259e796c239dIan RogersThread* Thread::FromManagedThread(const ScopedObjectAccessUnchecked& soa, 1912dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* thread_peer) { 192ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtField* f = soa.DecodeField(WellKnownClasses::java_lang_Thread_nativePeer); 19300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Thread* result = reinterpret_cast<Thread*>(static_cast<uintptr_t>(f->GetInt(thread_peer))); 19400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Sanity check that if we have a result it is either suspended or we hold the thread_list_lock_ 19500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // to stop it from going away. 19681d425b0b232962441616f8b14f73620bffef5e5Ian Rogers if (kIsDebugBuild) { 19781d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(soa.Self(), *Locks::thread_suspend_count_lock_); 19881d425b0b232962441616f8b14f73620bffef5e5Ian Rogers if (result != NULL && !result->IsSuspended()) { 19981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers Locks::thread_list_lock_->AssertHeld(soa.Self()); 20081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers } 20100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 20200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return result; 203761928d24e4e7ed7776b52243eaf9095ad35f448Elliott Hughes} 204761928d24e4e7ed7776b52243eaf9095ad35f448Elliott Hughes 20500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan RogersThread* Thread::FromManagedThread(const ScopedObjectAccessUnchecked& soa, jobject java_thread) { 2062dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers return FromManagedThread(soa, soa.Decode<mirror::Object*>(java_thread)); 20701158d7a57c8321370667a6045220237d16e0da8Elliott Hughes} 20801158d7a57c8321370667a6045220237d16e0da8Elliott Hughes 209ab7b9dcbfc4264a0bc4889c3e463ff88a67f6a30Elliott Hughesstatic size_t FixStackSize(size_t stack_size) { 2107502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // A stack size of zero means "use the default". 211d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes if (stack_size == 0) { 212d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes stack_size = Runtime::Current()->GetDefaultStackSize(); 213d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 21461e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 2156414a97a3c6dc101ae8ebc9480114d0c327e8e8dBrian Carlstrom // Dalvik used the bionic pthread default stack size for native threads, 2166414a97a3c6dc101ae8ebc9480114d0c327e8e8dBrian Carlstrom // so include that here to support apps that expect large native stacks. 2176414a97a3c6dc101ae8ebc9480114d0c327e8e8dBrian Carlstrom stack_size += 1 * MB; 2186414a97a3c6dc101ae8ebc9480114d0c327e8e8dBrian Carlstrom 2197502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // It's not possible to request a stack smaller than the system-defined PTHREAD_STACK_MIN. 2207502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes if (stack_size < PTHREAD_STACK_MIN) { 2217502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes stack_size = PTHREAD_STACK_MIN; 2227502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes } 2237502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 2247502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // It's likely that callers are trying to ensure they have at least a certain amount of 2257502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // stack space, so we should add our reserved space on top of what they requested, rather 2267502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // than implicitly take it away from them. 2277502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes stack_size += Thread::kStackOverflowReservedBytes; 2287502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 2297502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // Some systems require the stack size to be a multiple of the system page size, so round up. 2307502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes stack_size = RoundUp(stack_size, kPageSize); 2317502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 2327502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes return stack_size; 2337502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes} 2347502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 235120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogersvoid Thread::CreateNativeThread(JNIEnv* env, jobject java_peer, size_t stack_size, bool is_daemon) { 236dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier CHECK(java_peer != NULL); 237120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self = static_cast<JNIEnvExt*>(env)->self; 238120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime* runtime = Runtime::Current(); 239dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier 240120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Atomically start the birth of the thread ensuring the runtime isn't shutting down. 241120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers bool thread_start_during_shutdown = false; 242365c10235438607541fa2259a5fec48061b90bd8Ian Rogers { 243120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers MutexLock mu(self, *Locks::runtime_shutdown_lock_); 244590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier if (runtime->IsShuttingDownLocked()) { 245120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers thread_start_during_shutdown = true; 246120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } else { 247120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers runtime->StartThreadBirth(); 248120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 24900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 250120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (thread_start_during_shutdown) { 251120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedLocalRef<jclass> error_class(env, env->FindClass("java/lang/InternalError")); 252120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers env->ThrowNew(error_class.get(), "Thread starting during runtime shutdown"); 253120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers return; 254120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 255120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 256120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* child_thread = new Thread(is_daemon); 257120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Use global JNI ref to hold peer live while child thread starts. 258cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers child_thread->jpeer_ = env->NewGlobalRef(java_peer); 259120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers stack_size = FixStackSize(stack_size); 260120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 2613c50a4b4ba6d7d9369ee9a0bd6d30bf4c9c79bb0Anwar Ghuloum // Thread.start is synchronized, so we know that nativePeer is 0, and know that we're not racing to 262120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // assign it. 2633c50a4b4ba6d7d9369ee9a0bd6d30bf4c9c79bb0Anwar Ghuloum env->SetIntField(java_peer, WellKnownClasses::java_lang_Thread_nativePeer, 264120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers reinterpret_cast<jint>(child_thread)); 26500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 26600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers pthread_t new_pthread; 26700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers pthread_attr_t attr; 26800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_PTHREAD_CALL(pthread_attr_init, (&attr), "new thread"); 26900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_PTHREAD_CALL(pthread_attr_setdetachstate, (&attr, PTHREAD_CREATE_DETACHED), "PTHREAD_CREATE_DETACHED"); 27000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_PTHREAD_CALL(pthread_attr_setstacksize, (&attr, stack_size), stack_size); 271120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers int pthread_create_result = pthread_create(&new_pthread, &attr, Thread::CreateCallback, child_thread); 27200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_PTHREAD_CALL(pthread_attr_destroy, (&attr), "new thread"); 27300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 274120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (pthread_create_result != 0) { 27500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // pthread_create(3) failed, so clean up. 2769efc3e03982f042c3ce67cc2c64dbe0f0986119bBrian Carlstrom { 277120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers MutexLock mu(self, *Locks::runtime_shutdown_lock_); 278120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers runtime->EndThreadBirth(); 279120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 280120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Manually delete the global reference since Thread::Init will not have been run. 281cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers env->DeleteGlobalRef(child_thread->jpeer_); 282cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers child_thread->jpeer_ = NULL; 283120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers delete child_thread; 284120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers child_thread = NULL; 285120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // TODO: remove from thread group? 2863c50a4b4ba6d7d9369ee9a0bd6d30bf4c9c79bb0Anwar Ghuloum env->SetIntField(java_peer, WellKnownClasses::java_lang_Thread_nativePeer, 0); 287120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers { 2889efc3e03982f042c3ce67cc2c64dbe0f0986119bBrian Carlstrom std::string msg(StringPrintf("pthread_create (%s stack) failed: %s", 2899efc3e03982f042c3ce67cc2c64dbe0f0986119bBrian Carlstrom PrettySize(stack_size).c_str(), strerror(pthread_create_result))); 290120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedObjectAccess soa(env); 291120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers soa.Self()->ThrowOutOfMemoryError(msg.c_str()); 2929efc3e03982f042c3ce67cc2c64dbe0f0986119bBrian Carlstrom } 293365c10235438607541fa2259a5fec48061b90bd8Ian Rogers } 29493e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes} 29561e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 296120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogersvoid Thread::Init(ThreadList* thread_list, JavaVMExt* java_vm) { 297462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // This function does all the initialization that must be run by the native thread it applies to. 298462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // (When we create a new thread from managed code, we allocate the Thread* in Thread::Create so 299462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // we can handshake with the corresponding native thread when it's ready.) Check this native 300462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // thread hasn't been through here already... 301cac6cc72c3331257fa6437b36a131e5d551e2f3cElliott Hughes CHECK(Thread::Current() == NULL); 302d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes SetUpAlternateSignalStack(); 30393e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes InitCpu(); 304848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers InitTlsEntryPoints(); 3055d76c435082332ef79a22962386fa92a0870e378Ian Rogers InitCardTable(); 30601ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers InitTid(); 307120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Set pthread_self_ ahead of pthread_setspecific, that makes Thread::Current function, this 308120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // avoids pthread_self_ ever being invalid when discovered from Thread::Current(). 3090d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes pthread_self_ = pthread_self(); 3100878d654e7be8c9666579e22522704d8887415ccIan Rogers CHECK(is_started_); 3116a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes CHECK_PTHREAD_CALL(pthread_setspecific, (Thread::pthread_key_self_, this), "attach self"); 312120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers DCHECK_EQ(Thread::Current(), this); 313a5780dad67556297c8ca5f2608c53b193e6c4514Elliott Hughes 314d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers thin_lock_thread_id_ = thread_list->AllocThreadId(this); 315120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers InitStackHwm(); 3165fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 317120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_ = new JNIEnvExt(this, java_vm); 318120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers thread_list->Register(this); 31993e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes} 32093e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 321664bebf92eb2151b9b570ccd42ac4b6056c3ea9cMathieu ChartierThread* Thread::Attach(const char* thread_name, bool as_daemon, jobject thread_group, 322664bebf92eb2151b9b570ccd42ac4b6056c3ea9cMathieu Chartier bool create_peer) { 323120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self; 324120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime* runtime = Runtime::Current(); 325120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (runtime == NULL) { 326120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << "Thread attaching to non-existent runtime: " << thread_name; 327120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers return NULL; 328120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 329120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers { 330120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers MutexLock mu(NULL, *Locks::runtime_shutdown_lock_); 331590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier if (runtime->IsShuttingDownLocked()) { 332120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << "Thread attaching while runtime is shutting down: " << thread_name; 333120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers return NULL; 334120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } else { 335120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime::Current()->StartThreadBirth(); 336120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers self = new Thread(as_daemon); 337120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers self->Init(runtime->GetThreadList(), runtime->GetJavaVM()); 338120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime::Current()->EndThreadBirth(); 339120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 340120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 3415fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 342dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier CHECK_NE(self->GetState(), kRunnable); 343dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier self->SetState(kNative); 344726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes 345cac6cc72c3331257fa6437b36a131e5d551e2f3cElliott Hughes // If we're the main thread, ClassLinker won't be created until after we're attached, 346cac6cc72c3331257fa6437b36a131e5d551e2f3cElliott Hughes // so that thread needs a two-stage attach. Regular threads don't need this hack. 347d9c67be7c116875d96b31e640ad47d587b205605Elliott Hughes // In the compiler, all threads need this hack, because no-one's going to be getting 348d9c67be7c116875d96b31e640ad47d587b205605Elliott Hughes // a native peer! 349664bebf92eb2151b9b570ccd42ac4b6056c3ea9cMathieu Chartier if (create_peer) { 350462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes self->CreatePeer(thread_name, as_daemon, thread_group); 35106e3ad4a651c2c58dba5e865cd06d2f98462bf1dElliott Hughes } else { 35206e3ad4a651c2c58dba5e865cd06d2f98462bf1dElliott Hughes // These aren't necessary, but they improve diagnostics for unit tests & command-line tools. 35322869a9026a08b544eca4cefd67386d347e30d2cElliott Hughes if (thread_name != NULL) { 35422869a9026a08b544eca4cefd67386d347e30d2cElliott Hughes self->name_->assign(thread_name); 35522869a9026a08b544eca4cefd67386d347e30d2cElliott Hughes ::art::SetThreadName(thread_name); 35622869a9026a08b544eca4cefd67386d347e30d2cElliott Hughes } 35736e0a955e48e9357bff1eab783e493107ebfff62Ian Rogers } 358cac6cc72c3331257fa6437b36a131e5d551e2f3cElliott Hughes 3595fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes return self; 3605fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes} 3615fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 362365c10235438607541fa2259a5fec48061b90bd8Ian Rogersvoid Thread::CreatePeer(const char* name, bool as_daemon, jobject thread_group) { 363365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Runtime* runtime = Runtime::Current(); 364365c10235438607541fa2259a5fec48061b90bd8Ian Rogers CHECK(runtime->IsStarted()); 3655fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes JNIEnv* env = jni_env_; 3665fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 367462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes if (thread_group == NULL) { 368365c10235438607541fa2259a5fec48061b90bd8Ian Rogers thread_group = runtime->GetMainThreadGroup(); 369462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes } 370726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes ScopedLocalRef<jobject> thread_name(env, env->NewStringUTF(name)); 3718daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes jint thread_priority = GetNativePriority(); 3725fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes jboolean thread_is_daemon = as_daemon; 3735fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 374eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes ScopedLocalRef<jobject> peer(env, env->AllocObject(WellKnownClasses::java_lang_Thread)); 375dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier if (peer.get() == NULL) { 376dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier CHECK(IsExceptionPending()); 377dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier return; 3785d4bdc29737a693027daaf6ed3f0792368eb4baeIan Rogers } 379cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers { 380cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedObjectAccess soa(this); 3812dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers opeer_ = soa.Decode<mirror::Object*>(peer.get()); 382cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers } 383eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes env->CallNonvirtualVoidMethod(peer.get(), 384eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes WellKnownClasses::java_lang_Thread, 385eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes WellKnownClasses::java_lang_Thread_init, 386365c10235438607541fa2259a5fec48061b90bd8Ian Rogers thread_group, thread_name.get(), thread_priority, thread_is_daemon); 38700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers AssertNoPendingException(); 388d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 389120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self = this; 390120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers DCHECK_EQ(self, Thread::Current()); 3913c50a4b4ba6d7d9369ee9a0bd6d30bf4c9c79bb0Anwar Ghuloum jni_env_->SetIntField(peer.get(), WellKnownClasses::java_lang_Thread_nativePeer, 392120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers reinterpret_cast<jint>(self)); 393120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 394120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedObjectAccess soa(self); 3952dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::String> peer_thread_name(soa.Self(), GetThreadName(soa)); 39600fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom if (peer_thread_name.get() == NULL) { 39700fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom // The Thread constructor should have set the Thread.name to a 39800fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom // non-null value. However, because we can run without code 39900fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom // available (in the compiler, in tests), we manually assign the 40000fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom // fields the constructor should have set. 401dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier soa.DecodeField(WellKnownClasses::java_lang_Thread_daemon)-> 402cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers SetBoolean(opeer_, thread_is_daemon); 403dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier soa.DecodeField(WellKnownClasses::java_lang_Thread_group)-> 4042dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SetObject(opeer_, soa.Decode<mirror::Object*>(thread_group)); 405dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier soa.DecodeField(WellKnownClasses::java_lang_Thread_name)-> 4062dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SetObject(opeer_, soa.Decode<mirror::Object*>(thread_name.get())); 407dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier soa.DecodeField(WellKnownClasses::java_lang_Thread_priority)-> 408cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers SetInt(opeer_, thread_priority); 40900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers peer_thread_name.reset(GetThreadName(soa)); 41000fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom } 411225f5a1df25241babd16cdba54056b9e2cd166a2Elliott Hughes // 'thread_name' may have been null, so don't trust 'peer_thread_name' to be non-null. 41200fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom if (peer_thread_name.get() != NULL) { 413899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes SetThreadName(peer_thread_name->ToModifiedUtf8().c_str()); 41400fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom } 41561e019d291583029c01b61b93bea750f2b663c37Carl Shapiro} 41661e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 417899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughesvoid Thread::SetThreadName(const char* name) { 418899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes name_->assign(name); 419899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes ::art::SetThreadName(name); 420899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes Dbg::DdmSendThreadNotification(this, CHUNK_TYPE("THNM")); 421899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes} 422899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes 423be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughesvoid Thread::InitStackHwm() { 424e188419b971936086a188843378375f5ced13724Elliott Hughes void* stack_base; 425e188419b971936086a188843378375f5ced13724Elliott Hughes size_t stack_size; 4262921201dce37ba40c55b89c0deca3c34bf64168eBrian Carlstrom GetThreadStack(pthread_self_, &stack_base, &stack_size); 42736ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 42836ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // TODO: include this in the thread dumps; potentially useful in SIGQUIT output? 429e188419b971936086a188843378375f5ced13724Elliott Hughes VLOG(threads) << StringPrintf("Native stack is at %p (%s)", stack_base, PrettySize(stack_size).c_str()); 430e188419b971936086a188843378375f5ced13724Elliott Hughes 431e188419b971936086a188843378375f5ced13724Elliott Hughes stack_begin_ = reinterpret_cast<byte*>(stack_base); 432e188419b971936086a188843378375f5ced13724Elliott Hughes stack_size_ = stack_size; 43336ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 434932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers if (stack_size_ <= kStackOverflowReservedBytes) { 4353d30d9b09c16542d41554aad9f46ec9109ba5cb5Elliott Hughes LOG(FATAL) << "Attempt to attach a thread with a too-small stack (" << stack_size_ << " bytes)"; 436be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 437449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes 438e188419b971936086a188843378375f5ced13724Elliott Hughes // TODO: move this into the Linux GetThreadStack implementation. 439e188419b971936086a188843378375f5ced13724Elliott Hughes#if !defined(__APPLE__) 44036ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // If we're the main thread, check whether we were run with an unlimited stack. In that case, 44136ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // glibc will have reported a 2GB stack for our 32-bit process, and our stack overflow detection 44236ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // will be broken because we'll die long before we get close to 2GB. 443120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers bool is_main_thread = (::art::GetTid() == getpid()); 444120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (is_main_thread) { 44536ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes rlimit stack_limit; 44636ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes if (getrlimit(RLIMIT_STACK, &stack_limit) == -1) { 44736ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes PLOG(FATAL) << "getrlimit(RLIMIT_STACK) failed"; 44836ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes } 44936ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes if (stack_limit.rlim_cur == RLIM_INFINITY) { 45036ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // Find the default stack size for new threads... 45136ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes pthread_attr_t default_attributes; 45236ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes size_t default_stack_size; 45336ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_init, (&default_attributes), "default stack size query"); 45436ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_getstacksize, (&default_attributes, &default_stack_size), 45536ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes "default stack size query"); 45636ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_destroy, (&default_attributes), "default stack size query"); 45736ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 45836ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // ...and use that as our limit. 45936ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes size_t old_stack_size = stack_size_; 46036ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes stack_size_ = default_stack_size; 46136ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes stack_begin_ += (old_stack_size - stack_size_); 462faf4ba01738400f418b45c4323aa9e8e6b6ba2a0Elliott Hughes VLOG(threads) << "Limiting unlimited stack (reported as " << PrettySize(old_stack_size) << ")" 463faf4ba01738400f418b45c4323aa9e8e6b6ba2a0Elliott Hughes << " to " << PrettySize(stack_size_) 464faf4ba01738400f418b45c4323aa9e8e6b6ba2a0Elliott Hughes << " with base " << reinterpret_cast<void*>(stack_begin_); 46536ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes } 46636ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes } 467e188419b971936086a188843378375f5ced13724Elliott Hughes#endif 46836ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 469932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // Set stack_end_ to the bottom of the stack saving space of stack overflows 470932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers ResetDefaultStackEnd(); 471449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes 472449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes // Sanity check. 473449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes int stack_variable; 474398f64b5805246765b699839b439e18c0dfbf2eeElliott Hughes CHECK_GT(&stack_variable, reinterpret_cast<void*>(stack_end_)); 475be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes} 476be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 47700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::ShortDump(std::ostream& os) const { 47800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers os << "Thread["; 479d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers if (GetThreadId() != 0) { 48000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // If we're in kStarting, we won't have a thin lock id or tid yet. 481d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers os << GetThreadId() 48200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << ",tid=" << GetTid() << ','; 483e0918556e7551de638870dcad3f2023f94f85a50Elliott Hughes } 484474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers os << GetState() 48500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << ",Thread*=" << this 486cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers << ",peer=" << opeer_ 48700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << ",\"" << *name_ << "\"" 48800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << "]"; 489d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes} 490d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 49100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::Dump(std::ostream& os) const { 49200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DumpState(os); 49300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DumpStack(os); 49400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 49500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 4962dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersmirror::String* Thread::GetThreadName(const ScopedObjectAccessUnchecked& soa) const { 497ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtField* f = soa.DecodeField(WellKnownClasses::java_lang_Thread_name); 4982dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers return (opeer_ != NULL) ? reinterpret_cast<mirror::String*>(f->GetObject(opeer_)) : NULL; 499fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes} 500fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes 501ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughesvoid Thread::GetThreadName(std::string& name) const { 502ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes name.assign(*name_); 503ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes} 504ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes 50557dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Haouint64_t Thread::GetCpuMicroTime() const { 50657dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao#if defined(HAVE_POSIX_CLOCKS) 50757dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao clockid_t cpu_clock_id; 50857dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao pthread_getcpuclockid(pthread_self_, &cpu_clock_id); 50957dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao timespec now; 51057dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao clock_gettime(cpu_clock_id, &now); 51157dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao return static_cast<uint64_t>(now.tv_sec) * 1000000LL + now.tv_nsec / 1000LL; 51257dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao#else 51357dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao UNIMPLEMENTED(WARNING); 51457dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao return -1; 51557dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao#endif 51657dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao} 51757dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao 518474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogersvoid Thread::AtomicSetFlag(ThreadFlag flag) { 51930e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers android_atomic_or(flag, &state_and_flags_.as_int); 520474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers} 521474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers 522474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogersvoid Thread::AtomicClearFlag(ThreadFlag flag) { 52330e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers android_atomic_and(-1 ^ flag, &state_and_flags_.as_int); 524474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers} 525474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers 52601ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers// Attempt to rectify locks so that we dump thread list with required locks before exiting. 52701ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogersstatic void UnsafeLogFatalForSuspendCount(Thread* self, Thread* thread) NO_THREAD_SAFETY_ANALYSIS { 528120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << *thread << " suspend count already zero."; 52901ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::thread_suspend_count_lock_->Unlock(self); 53001ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::mutator_lock_->IsSharedHeld(self)) { 53101ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::mutator_lock_->SharedTryLock(self); 53201ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::mutator_lock_->IsSharedHeld(self)) { 53301ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers LOG(WARNING) << "Dumping thread list without holding mutator_lock_"; 53401ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 53501ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 53601ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::thread_list_lock_->IsExclusiveHeld(self)) { 53701ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::thread_list_lock_->TryLock(self); 53801ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::thread_list_lock_->IsExclusiveHeld(self)) { 53901ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers LOG(WARNING) << "Dumping thread list without holding thread_list_lock_"; 54001ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 54101ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 54201ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers std::ostringstream ss; 54301ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Runtime::Current()->GetThreadList()->DumpLocked(ss); 544120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(FATAL) << ss.str(); 54501ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers} 54601ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers 54701ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogersvoid Thread::ModifySuspendCount(Thread* self, int delta, bool for_debugger) { 54800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DCHECK(delta == -1 || delta == +1 || delta == -debug_suspend_count_) 54900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << delta << " " << debug_suspend_count_ << " " << this; 55000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DCHECK_GE(suspend_count_, debug_suspend_count_) << this; 55101ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::thread_suspend_count_lock_->AssertHeld(self); 552cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (this != self && !IsSuspended()) { 553cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers Locks::thread_list_lock_->AssertHeld(self); 554cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers } 55501ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (UNLIKELY(delta < 0 && suspend_count_ <= 0)) { 55601ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers UnsafeLogFatalForSuspendCount(self, this); 55700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return; 55800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 55901ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers 56000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers suspend_count_ += delta; 56100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (for_debugger) { 56200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers debug_suspend_count_ += delta; 56300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 56401ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers 565474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers if (suspend_count_ == 0) { 566474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers AtomicClearFlag(kSuspendRequest); 567474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers } else { 568474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers AtomicSetFlag(kSuspendRequest); 569474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers } 57000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 57100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 572752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartiervoid Thread::RunCheckpointFunction() { 573752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier CHECK(checkpoint_function_ != NULL); 574752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier ATRACE_BEGIN("Checkpoint function"); 575752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier checkpoint_function_->Run(this); 576752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier ATRACE_END(); 577d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers checkpoint_function_ = NULL; 578d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers AtomicClearFlag(kCheckpointRequest); 579752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier} 580752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier 5810e4627e593bc39f8e3d89c31f8977d55054c07ccMathieu Chartierbool Thread::RequestCheckpoint(Closure* function) { 58259cde534aa295bad7de29472b3cce9576d7996a8Chris Dearman union StateAndFlags old_state_and_flags; 58359cde534aa295bad7de29472b3cce9576d7996a8Chris Dearman old_state_and_flags.as_int = state_and_flags_.as_int; 584d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers if (old_state_and_flags.as_struct.state != kRunnable) { 585d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers return false; // Fail, thread is suspended and so can't run a checkpoint. 586d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers } 587d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers if ((old_state_and_flags.as_struct.flags & kCheckpointRequest) != 0) { 588d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers return false; // Fail, already a checkpoint pending. 589d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers } 5905f51d4b80058236759fea1d932470a57f348c199Mathieu Chartier CHECK(checkpoint_function_ == nullptr); 591d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers checkpoint_function_ = function; 592d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers // Checkpoint function installed now install flag bit. 593858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier // We must be runnable to request a checkpoint. 5945f51d4b80058236759fea1d932470a57f348c199Mathieu Chartier DCHECK_EQ(old_state_and_flags.as_struct.state, kRunnable); 59559cde534aa295bad7de29472b3cce9576d7996a8Chris Dearman union StateAndFlags new_state_and_flags; 59659cde534aa295bad7de29472b3cce9576d7996a8Chris Dearman new_state_and_flags.as_int = old_state_and_flags.as_int; 597858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier new_state_and_flags.as_struct.flags |= kCheckpointRequest; 598858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier int succeeded = android_atomic_cmpxchg(old_state_and_flags.as_int, new_state_and_flags.as_int, 599858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier &state_and_flags_.as_int); 600d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers if (UNLIKELY(succeeded != 0)) { 601d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers // The thread changed state before the checkpoint was installed. 602d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers CHECK(checkpoint_function_ == function); 603d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers checkpoint_function_ = NULL; 604d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers } 605858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier return succeeded == 0; 606858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier} 607858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier 60800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::FullSuspendCheck() { 60900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers VLOG(threads) << this << " self-suspending"; 610752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier ATRACE_BEGIN("Full suspend check"); 61100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Make thread appear suspended to other threads, release mutator_lock_. 61200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers TransitionFromRunnableToSuspended(kSuspended); 61300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Transition back to runnable noting requests to suspend, re-acquire share on mutator_lock_. 61400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers TransitionFromSuspendedToRunnable(); 615752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier ATRACE_END(); 61600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers VLOG(threads) << this << " self-reviving"; 61700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 61800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 619abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughesvoid Thread::DumpState(std::ostream& os, const Thread* thread, pid_t tid) { 620d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes std::string group_name; 621d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes int priority; 622d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes bool is_daemon = false; 62381d425b0b232962441616f8b14f73620bffef5e5Ian Rogers Thread* self = Thread::Current(); 624d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 625a6227676df130164322b1ac66a429eb0bfd0df62Ian Rogers if (self != NULL && thread != NULL && thread->opeer_ != NULL) { 626cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedObjectAccessUnchecked soa(self); 627cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers priority = soa.DecodeField(WellKnownClasses::java_lang_Thread_priority)->GetInt(thread->opeer_); 628cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers is_daemon = soa.DecodeField(WellKnownClasses::java_lang_Thread_daemon)->GetBoolean(thread->opeer_); 629d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 6302dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* thread_group = 631cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers soa.DecodeField(WellKnownClasses::java_lang_Thread_group)->GetObject(thread->opeer_); 632120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 633d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes if (thread_group != NULL) { 634ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtField* group_name_field = 6352dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers soa.DecodeField(WellKnownClasses::java_lang_ThreadGroup_name); 6362dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::String* group_name_string = 6372dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers reinterpret_cast<mirror::String*>(group_name_field->GetObject(thread_group)); 638d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes group_name = (group_name_string != NULL) ? group_name_string->ToModifiedUtf8() : "<null>"; 639d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 640d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } else { 641d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes priority = GetNativePriority(); 642dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes } 643d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 644abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes std::string scheduler_group_name(GetSchedulerGroupName(tid)); 6451bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughes if (scheduler_group_name.empty()) { 6461bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughes scheduler_group_name = "default"; 647d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 648d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 649abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (thread != NULL) { 650abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << '"' << *thread->name_ << '"'; 651abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (is_daemon) { 652abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " daemon"; 653abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } 654abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " prio=" << priority 655d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers << " tid=" << thread->GetThreadId() 65680537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes << " " << thread->GetState(); 65780537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes if (thread->IsStillStarting()) { 65880537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes os << " (still starting up)"; 65980537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes } 66080537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes os << "\n"; 661abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } else { 662289be85116aaf7c48413858b5d0448868b4e61f3Elliott Hughes os << '"' << ::art::GetThreadName(tid) << '"' 663abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " prio=" << priority 664abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " (not attached)\n"; 665abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } 666abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes 667abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (thread != NULL) { 66881d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(self, *Locks::thread_suspend_count_lock_); 669abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " | group=\"" << group_name << "\"" 670abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " sCount=" << thread->suspend_count_ 671abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " dsCount=" << thread->debug_suspend_count_ 672cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers << " obj=" << reinterpret_cast<void*>(thread->opeer_) 673abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " self=" << reinterpret_cast<const void*>(thread) << "\n"; 674d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 6750d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes 676abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " | sysTid=" << tid 677abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " nice=" << getpriority(PRIO_PROCESS, tid) 6780d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes << " cgrp=" << scheduler_group_name; 6790d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes if (thread != NULL) { 6800d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes int policy; 6810d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes sched_param sp; 6820d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes CHECK_PTHREAD_CALL(pthread_getschedparam, (thread->pthread_self_, &policy, &sp), __FUNCTION__); 6830d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes os << " sched=" << policy << "/" << sp.sched_priority 6840d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes << " handle=" << reinterpret_cast<void*>(thread->pthread_self_); 6850d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes } 6860d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes os << "\n"; 687d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 688d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes // Grab the scheduler stats for this thread. 689d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes std::string scheduler_stats; 690abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (ReadFileToString(StringPrintf("/proc/self/task/%d/schedstat", tid), &scheduler_stats)) { 6917934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom scheduler_stats.resize(scheduler_stats.size() - 1); // Lose the trailing '\n'. 692d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } else { 693d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes scheduler_stats = "0 0 0"; 694d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 695d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 696ba0b9c55adce3f533845ab1b25c552589e5b4118Elliott Hughes char native_thread_state = '?'; 697d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int utime = 0; 698d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int stime = 0; 699d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int task_cpu = 0; 7002921201dce37ba40c55b89c0deca3c34bf64168eBrian Carlstrom GetTaskStats(tid, &native_thread_state, &utime, &stime, &task_cpu); 701d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 702ba0b9c55adce3f533845ab1b25c552589e5b4118Elliott Hughes os << " | state=" << native_thread_state 703ba0b9c55adce3f533845ab1b25c552589e5b4118Elliott Hughes << " schedstat=( " << scheduler_stats << " )" 704d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes << " utm=" << utime 705d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes << " stm=" << stime 706abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " core=" << task_cpu 707abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " HZ=" << sysconf(_SC_CLK_TCK) << "\n"; 708abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (thread != NULL) { 709abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " | stack=" << reinterpret_cast<void*>(thread->stack_begin_) << "-" << reinterpret_cast<void*>(thread->stack_end_) 710abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " stackSize=" << PrettySize(thread->stack_size_) << "\n"; 711abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } 712abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes} 713abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes 714abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughesvoid Thread::DumpState(std::ostream& os) const { 715abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes Thread::DumpState(os, this, GetTid()); 716a09576416788b916095739e43a16917e7948f3a4Elliott Hughes} 717a09576416788b916095739e43a16917e7948f3a4Elliott Hughes 7180399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersstruct StackDumpVisitor : public StackVisitor { 7197a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers StackDumpVisitor(std::ostream& os, Thread* thread, Context* context, bool can_allocate) 720b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 7217a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers : StackVisitor(thread, context), os(os), thread(thread), can_allocate(can_allocate), 72208fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes last_method(NULL), last_line_number(0), repetition_count(0), frame_count(0) { 723d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 724d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 725bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers virtual ~StackDumpVisitor() { 726e85d2e924953f1a13b7152edba1c13853e6f3a86Elliott Hughes if (frame_count == 0) { 727e85d2e924953f1a13b7152edba1c13853e6f3a86Elliott Hughes os << " (no managed stack frames)\n"; 728e85d2e924953f1a13b7152edba1c13853e6f3a86Elliott Hughes } 729d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 730d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 731b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 732ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = GetMethod(); 7330399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (m->IsRuntimeMethod()) { 734530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 7359086572fa809d1a19d886b467e4da3ce42016982Ian Rogers } 73628ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers const int kMaxRepetition = 3; 7372dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Class* c = m->GetDeclaringClass(); 7382dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers const mirror::DexCache* dex_cache = c->GetDexCache(); 739b861dc0077342d5a1d2dd9cade3f6990620778ecIan Rogers int line_number = -1; 740b861dc0077342d5a1d2dd9cade3f6990620778ecIan Rogers if (dex_cache != NULL) { // be tolerant of bad input 7414445a7e3398a6143939168097a3aa275b734504dIan Rogers const DexFile& dex_file = *dex_cache->GetDexFile(); 7420399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers line_number = dex_file.GetLineNumFromPC(m, GetDexPc()); 743b861dc0077342d5a1d2dd9cade3f6990620778ecIan Rogers } 74428ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (line_number == last_line_number && last_method == m) { 74528ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers repetition_count++; 746d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } else { 74728ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (repetition_count >= kMaxRepetition) { 74828ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << " ... repeated " << (repetition_count - kMaxRepetition) << " times\n"; 74928ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 75028ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers repetition_count = 0; 75128ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers last_line_number = line_number; 75228ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers last_method = m; 75328ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 75428ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (repetition_count < kMaxRepetition) { 75528ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << " at " << PrettyMethod(m, false); 75628ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (m->IsNative()) { 75728ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << "(Native method)"; 75828ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } else { 7596d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers mh.ChangeMethod(m); 7606d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers const char* source_file(mh.GetDeclaringClassSourceFile()); 7616d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers os << "(" << (source_file != NULL ? source_file : "unavailable") 7622e450bf45e1bacc9c356f6ab239ccfb31bd8d7e4Brian Carlstrom << ":" << line_number << ")"; 76328ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 76428ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << "\n"; 76508fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes if (frame_count == 0) { 76608fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes Monitor::DescribeWait(os, thread); 76708fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes } 76808fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes if (can_allocate) { 7694993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes Monitor::VisitLocks(this, DumpLockedObject, &os); 77008fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes } 771d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 7728e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes 77308fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes ++frame_count; 774530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 775d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 7764993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes 7772dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers static void DumpLockedObject(mirror::Object* o, void* context) 7784993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 7794993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes std::ostream& os = *reinterpret_cast<std::ostream*>(context); 7804993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes os << " - locked <" << o << "> (a " << PrettyTypeOf(o) << ")\n"; 7814993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes } 7824993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes 78308fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes std::ostream& os; 78408fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes const Thread* thread; 7850878d654e7be8c9666579e22522704d8887415ccIan Rogers const bool can_allocate; 7866d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers MethodHelper mh; 787ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* last_method; 78828ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers int last_line_number; 78928ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers int repetition_count; 7908e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes int frame_count; 791d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes}; 792d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 79333e9566255c426e7a2c8fca5b8a1b6a94a5d352cIan Rogersstatic bool ShouldShowNativeStack(const Thread* thread) 79433e9566255c426e7a2c8fca5b8a1b6a94a5d352cIan Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 795aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes ThreadState state = thread->GetState(); 796aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes 797aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // In native code somewhere in the VM (one of the kWaitingFor* states)? That's interesting. 798aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes if (state > kWaiting && state < kStarting) { 799aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes return true; 800aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes } 801aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes 802aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // In an Object.wait variant or Thread.sleep? That's not interesting. 803aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes if (state == kTimedWaiting || state == kSleeping || state == kWaiting) { 804aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes return false; 805aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes } 806aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes 807aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // In some other native method? That's interesting. 808aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // We don't just check kNative because native methods will be in state kSuspended if they're 809aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // calling back into the VM, or kBlocked if they're blocked on a monitor, or one of the 810aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // thread-startup states if it's early enough in their life cycle (http://b/7432159). 811ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* current_method = thread->GetCurrentMethod(NULL); 812aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes return current_method != NULL && current_method->IsNative(); 813aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes} 814aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes 815d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughesvoid Thread::DumpStack(std::ostream& os) const { 816ed1790e83352e54420018d1495eb010f7cd48a64Jeff Hao // TODO: we call this code when dying but may not have suspended the thread ourself. The 817ed1790e83352e54420018d1495eb010f7cd48a64Jeff Hao // IsSuspended check is therefore racy with the use for dumping (normally we inhibit 818ed1790e83352e54420018d1495eb010f7cd48a64Jeff Hao // the race with the thread_suspend_count_lock_). 81965530499a0169b3b0b153008e2d187c9f4939541Ian Rogers // No point dumping for an abort in debug builds where we'll hit the not suspended check in stack. 82065530499a0169b3b0b153008e2d187c9f4939541Ian Rogers bool dump_for_abort = (gAborting > 0) && !kIsDebugBuild; 821d090cf4f2420a228251e27dbae600f4f44ae2c57Ian Rogers if (this == Thread::Current() || IsSuspended() || dump_for_abort) { 822f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers // If we're currently in native code, dump that stack before dumping the managed stack. 823d090cf4f2420a228251e27dbae600f4f44ae2c57Ian Rogers if (dump_for_abort || ShouldShowNativeStack(this)) { 824f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers DumpKernelStack(os, GetTid(), " kernel: ", false); 825f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers DumpNativeStack(os, GetTid(), " native: ", false); 826f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers } 827f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers UniquePtr<Context> context(Context::Create()); 828f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers StackDumpVisitor dumper(os, const_cast<Thread*>(this), context.get(), !throwing_OutOfMemoryError_); 829f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers dumper.WalkStack(); 830f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers } else { 831f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers os << "Not able to dump stack of thread that isn't suspended"; 832f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers } 833e27955ca3ca960928d4dbd6cb79711fce06950b3Elliott Hughes} 834e27955ca3ca960928d4dbd6cb79711fce06950b3Elliott Hughes 835be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughesvoid Thread::ThreadExitCallback(void* arg) { 836be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes Thread* self = reinterpret_cast<Thread*>(arg); 8376a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes if (self->thread_exit_check_count_ == 0) { 8386a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes LOG(WARNING) << "Native thread exiting without having called DetachCurrentThread (maybe it's going to use a pthread_key_create destructor?): " << *self; 8390878d654e7be8c9666579e22522704d8887415ccIan Rogers CHECK(is_started_); 8406a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes CHECK_PTHREAD_CALL(pthread_setspecific, (Thread::pthread_key_self_, self), "reattach self"); 8416a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes self->thread_exit_check_count_ = 1; 8426a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes } else { 8436a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes LOG(FATAL) << "Native thread exited without calling DetachCurrentThread: " << *self; 8446a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes } 845b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro} 846b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 847be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughesvoid Thread::Startup() { 8480878d654e7be8c9666579e22522704d8887415ccIan Rogers CHECK(!is_started_); 8490878d654e7be8c9666579e22522704d8887415ccIan Rogers is_started_ = true; 85000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers { 8516d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // MutexLock to keep annotalysis happy. 8526d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // 8536d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // Note we use NULL for the thread because Thread::Current can 8546d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // return garbage since (is_started_ == true) and 8556d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // Thread::pthread_key_self_ is not yet initialized. 8566d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // This was seen on glibc. 8576d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom MutexLock mu(NULL, *Locks::thread_suspend_count_lock_); 858c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers resume_cond_ = new ConditionVariable("Thread resumption condition variable", 859c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers *Locks::thread_suspend_count_lock_); 86000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 86100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 862b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro // Allocate a TLS slot. 8638d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes CHECK_PTHREAD_CALL(pthread_key_create, (&Thread::pthread_key_self_, Thread::ThreadExitCallback), "self key"); 864b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 865b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro // Double-check the TLS slot allocation. 866b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro if (pthread_getspecific(pthread_key_self_) != NULL) { 8673d30d9b09c16542d41554aad9f46ec9109ba5cb5Elliott Hughes LOG(FATAL) << "Newly-created pthread TLS slot is not NULL"; 868b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro } 869038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes} 870038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes 871038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughesvoid Thread::FinishStartup() { 872365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Runtime* runtime = Runtime::Current(); 873365c10235438607541fa2259a5fec48061b90bd8Ian Rogers CHECK(runtime->IsStarted()); 874b82b6878fb000d4731063b1bf15c39ff7c50b61fBrian Carlstrom 87501158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Finish attaching the main thread. 87600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(Thread::Current()); 877365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Thread::Current()->CreatePeer("main", false, runtime->GetMainThreadGroup()); 8789a6bae896a2f003d7216603bf29771d105c10ca4Jesse Wilson 879af8d15a3267343dec135cc6df1db740c0a5c7b52Elliott Hughes Runtime::Current()->GetClassLinker()->RunRootClinits(); 880b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro} 881b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 882c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughesvoid Thread::Shutdown() { 8830878d654e7be8c9666579e22522704d8887415ccIan Rogers CHECK(is_started_); 8840878d654e7be8c9666579e22522704d8887415ccIan Rogers is_started_ = false; 8858d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes CHECK_PTHREAD_CALL(pthread_key_delete, (Thread::pthread_key_self_), "self key"); 88633e9566255c426e7a2c8fca5b8a1b6a94a5d352cIan Rogers MutexLock mu(Thread::Current(), *Locks::thread_suspend_count_lock_); 8870878d654e7be8c9666579e22522704d8887415ccIan Rogers if (resume_cond_ != NULL) { 8880878d654e7be8c9666579e22522704d8887415ccIan Rogers delete resume_cond_; 8890878d654e7be8c9666579e22522704d8887415ccIan Rogers resume_cond_ = NULL; 8900878d654e7be8c9666579e22522704d8887415ccIan Rogers } 891c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes} 892c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes 89352673ffae0025d86f4023735581f19ebcc477487Ian RogersThread::Thread(bool daemon) 8940399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers : suspend_count_(0), 8950399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers card_table_(NULL), 8960399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers exception_(NULL), 8970399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers stack_end_(NULL), 8980399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers managed_stack_(), 8990399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers jni_env_(NULL), 9000399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers self_(NULL), 901cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers opeer_(NULL), 902cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers jpeer_(NULL), 9030399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers stack_begin_(NULL), 9040399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers stack_size_(0), 905d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers thin_lock_thread_id_(0), 9065ce4b178d2483df679e7f718e379305e5d42a300Jeff Hao stack_trace_sample_(NULL), 9075ce4b178d2483df679e7f718e379305e5d42a300Jeff Hao trace_clock_base_(0), 9080399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers tid_(0), 909e62934d85fbc2d935afdad57eeade39ecbd7440aElliott Hughes wait_mutex_(new Mutex("a thread wait mutex")), 910c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers wait_cond_(new ConditionVariable("a thread wait condition variable", *wait_mutex_)), 9118daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes wait_monitor_(NULL), 9128daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes interrupted_(false), 913dc33ad5db2dc6ed9b76d5219888626a604debbe1Elliott Hughes wait_next_(NULL), 9148e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes monitor_enter_object_(NULL), 915dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes top_sirt_(NULL), 916dc33ad5db2dc6ed9b76d5219888626a604debbe1Elliott Hughes runtime_(NULL), 91785d1545e985ac689db4bad7849880e843707c862Elliott Hughes class_loader_override_(NULL), 918418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes long_jump_context_(NULL), 919726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes throwing_OutOfMemoryError_(false), 9200399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers debug_suspend_count_(0), 921e343b76af81a005ef64f5e75a555389fd9147dabjeffhao debug_invoke_req_(new DebugInvokeReq), 92261b7f1b05d1fe12d4009316263bf990903e4edffSebastien Hertz single_step_control_(new SingleStepControl), 92362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers deoptimization_shadow_frame_(NULL), 92462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers instrumentation_stack_(new std::deque<instrumentation::InstrumentationStackFrame>), 9250399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers name_(new std::string(kThreadNameDuringStartup)), 92652673ffae0025d86f4023735581f19ebcc477487Ian Rogers daemon_(daemon), 92700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers pthread_self_(0), 92852673ffae0025d86f4023735581f19ebcc477487Ian Rogers no_thread_suspension_(0), 9296a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes last_no_thread_suspension_cause_(NULL), 930858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier checkpoint_function_(0), 9316a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes thread_exit_check_count_(0) { 932f5a7a476e7ea63e094ff0f011dccc170607e6f6bElliott Hughes CHECK_EQ((sizeof(Thread) % 4), 0U) << sizeof(Thread); 93330e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers state_and_flags_.as_struct.flags = 0; 93430e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers state_and_flags_.as_struct.state = kNative; 935ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes memset(&held_mutexes_[0], 0, sizeof(held_mutexes_)); 936cf58d4adf461eb9b8e84baa8019054c88cd8acc6Hiroshi Yamauchi memset(rosalloc_runs_, 0, sizeof(rosalloc_runs_)); 937dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes} 938dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes 9397dc5166ea740359d381097a7ab382c1dd404055fElliott Hughesbool Thread::IsStillStarting() const { 9407dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // You might think you can check whether the state is kStarting, but for much of thread startup, 94180537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes // the thread is in kNative; it might also be in kVmWait. 9427dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // You might think you can check whether the peer is NULL, but the peer is actually created and 9437dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // assigned fairly early on, and needs to be. 9447dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // It turns out that the last thing to change is the thread name; that's a good proxy for "has 9457dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // this thread _ever_ entered kRunnable". 94680537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes return (jpeer_ == NULL && opeer_ == NULL) || (*name_ == kThreadNameDuringStartup); 9477dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes} 9487dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes 94900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::AssertNoPendingException() const { 95000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (UNLIKELY(IsExceptionPending())) { 95100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(Thread::Current()); 95262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Throwable* exception = GetException(NULL); 95300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(FATAL) << "No pending exception expected: " << exception->Dump(); 95400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 95500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 95600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 957423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartierstatic mirror::Object* MonitorExitVisitor(mirror::Object* object, void* arg) 958423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier NO_THREAD_SAFETY_ANALYSIS { 95900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Thread* self = reinterpret_cast<Thread*>(arg); 960423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier mirror::Object* entered_monitor = object; 96100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (self->HoldsLock(entered_monitor)) { 96200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(WARNING) << "Calling MonitorExit on object " 96300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << object << " (" << PrettyTypeOf(object) << ")" 96400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << " left locked by native thread " 96500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << *Thread::Current() << " which is detaching"; 96600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers entered_monitor->MonitorExit(self); 96700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 968423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier return object; 96902b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes} 97002b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 971c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughesvoid Thread::Destroy() { 972120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self = this; 973120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers DCHECK_EQ(self, Thread::Current()); 97402b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 975cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (opeer_ != NULL) { 976cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedObjectAccess soa(self); 977120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // We may need to call user-supplied managed code, do this before final clean-up. 978cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers HandleUncaughtExceptions(soa); 979cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers RemoveFromThreadGroup(soa); 980534da072d3db3beecbd74e5aa23d630d73695f2cElliott Hughes 9813c50a4b4ba6d7d9369ee9a0bd6d30bf4c9c79bb0Anwar Ghuloum // this.nativePeer = 0; 9823c50a4b4ba6d7d9369ee9a0bd6d30bf4c9c79bb0Anwar Ghuloum soa.DecodeField(WellKnownClasses::java_lang_Thread_nativePeer)->SetInt(opeer_, 0); 983cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers Dbg::PostThreadDeath(self); 98402b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 985cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers // Thread.join() is implemented as an Object.wait() on the Thread.lock object. Signal anyone 986cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers // who is waiting. 9872dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* lock = 9882dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers soa.DecodeField(WellKnownClasses::java_lang_Thread_lock)->GetObject(opeer_); 989038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes // (This conditional is only needed for tests, where Thread.lock won't have been set.) 990cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (lock != NULL) { 99105f3057d6a4d23d712092ccd36a531590bff323bIan Rogers ObjectLock locker(self, lock); 99205f3057d6a4d23d712092ccd36a531590bff323bIan Rogers locker.Notify(); 9935f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 9945f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 995120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 996120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // On thread detach, all monitors entered with JNI MonitorEnter are automatically exited. 997120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (jni_env_ != NULL) { 998120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->monitors.VisitRoots(MonitorExitVisitor, self); 999120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 1000c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes} 100102b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 1002c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott HughesThread::~Thread() { 1003cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (jni_env_ != NULL && jpeer_ != NULL) { 1004dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier // If pthread_create fails we don't have a jni env here. 1005cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers jni_env_->DeleteGlobalRef(jpeer_); 1006cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers jpeer_ = NULL; 1007dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier } 1008cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers opeer_ = NULL; 1009dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier 1010c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes delete jni_env_; 101102b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes jni_env_ = NULL; 101202b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 1013dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier CHECK_NE(GetState(), kRunnable); 1014dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier // We may be deleting a still born thread. 1015dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier SetStateUnsafe(kTerminated); 101685d1545e985ac689db4bad7849880e843707c862Elliott Hughes 101785d1545e985ac689db4bad7849880e843707c862Elliott Hughes delete wait_cond_; 101885d1545e985ac689db4bad7849880e843707c862Elliott Hughes delete wait_mutex_; 101985d1545e985ac689db4bad7849880e843707c862Elliott Hughes 1020c928de90ad22ecdf83c18a07008409595f13d3b1Ian Rogers if (long_jump_context_ != NULL) { 1021c928de90ad22ecdf83c18a07008409595f13d3b1Ian Rogers delete long_jump_context_; 1022c928de90ad22ecdf83c18a07008409595f13d3b1Ian Rogers } 1023475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes 1024475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes delete debug_invoke_req_; 102561b7f1b05d1fe12d4009316263bf990903e4edffSebastien Hertz delete single_step_control_; 1026725a957985171d712d5c048cc3d00ff14968784bjeffhao delete instrumentation_stack_; 1027899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes delete name_; 10285ce4b178d2483df679e7f718e379305e5d42a300Jeff Hao delete stack_trace_sample_; 1029d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes 1030cf58d4adf461eb9b8e84baa8019054c88cd8acc6Hiroshi Yamauchi Runtime::Current()->GetHeap()->RevokeThreadLocalBuffers(this); 1031cf58d4adf461eb9b8e84baa8019054c88cd8acc6Hiroshi Yamauchi 1032d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes TearDownAlternateSignalStack(); 1033c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes} 1034c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes 1035cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogersvoid Thread::HandleUncaughtExceptions(ScopedObjectAccess& soa) { 1036accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes if (!IsExceptionPending()) { 1037accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes return; 1038accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes } 1039cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedLocalRef<jobject> peer(jni_env_, soa.AddLocalReference<jobject>(opeer_)); 1040cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedThreadStateChange tsc(this, kNative); 1041120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 1042accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Get and clear the exception. 1043120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedLocalRef<jthrowable> exception(jni_env_, jni_env_->ExceptionOccurred()); 1044120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->ExceptionClear(); 1045accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1046accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // If the thread has its own handler, use that. 1047120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedLocalRef<jobject> handler(jni_env_, 1048cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers jni_env_->GetObjectField(peer.get(), 1049120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers WellKnownClasses::java_lang_Thread_uncaughtHandler)); 1050120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (handler.get() == NULL) { 1051accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Otherwise use the thread group's default handler. 1052cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers handler.reset(jni_env_->GetObjectField(peer.get(), WellKnownClasses::java_lang_Thread_group)); 1053accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes } 1054accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1055accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Call the handler. 1056120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->CallVoidMethod(handler.get(), 1057120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers WellKnownClasses::java_lang_Thread$UncaughtExceptionHandler_uncaughtException, 1058cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers peer.get(), exception.get()); 1059accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1060accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // If the handler threw, clear that exception too. 1061120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->ExceptionClear(); 1062a215526d5c789cbef0f81a1f9aba22541a841ccaElliott Hughes} 1063a215526d5c789cbef0f81a1f9aba22541a841ccaElliott Hughes 1064cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogersvoid Thread::RemoveFromThreadGroup(ScopedObjectAccess& soa) { 10654514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom // this.group.removeThread(this); 10664514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom // group can be null if we're in the compiler or a test. 10672dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* ogroup = soa.DecodeField(WellKnownClasses::java_lang_Thread_group)->GetObject(opeer_); 1068cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (ogroup != NULL) { 1069cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedLocalRef<jobject> group(soa.Env(), soa.AddLocalReference<jobject>(ogroup)); 1070cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedLocalRef<jobject> peer(soa.Env(), soa.AddLocalReference<jobject>(opeer_)); 1071cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedThreadStateChange tsc(soa.Self(), kNative); 1072120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->CallVoidMethod(group.get(), WellKnownClasses::java_lang_ThreadGroup_removeThread, 1073cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers peer.get()); 10744514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom } 10754514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom} 1076accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1077408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogerssize_t Thread::NumSirtReferences() { 1078a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers size_t count = 0; 107940381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom for (StackIndirectReferenceTable* cur = top_sirt_; cur; cur = cur->GetLink()) { 1080a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers count += cur->NumberOfReferences(); 1081a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers } 1082a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers return count; 1083a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers} 1084a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers 1085cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogersbool Thread::SirtContains(jobject obj) const { 10862dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object** sirt_entry = reinterpret_cast<mirror::Object**>(obj); 108740381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom for (StackIndirectReferenceTable* cur = top_sirt_; cur; cur = cur->GetLink()) { 108840381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom if (cur->Contains(sirt_entry)) { 1089a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers return true; 1090a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers } 1091a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers } 10920399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // JNI code invoked from portable code uses shadow frames rather than the SIRT. 10930399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return managed_stack_.ShadowFramesContain(sirt_entry); 109428f1a147d77ec772db98bed890b50a9ddcff2365TDYa} 109528f1a147d77ec772db98bed890b50a9ddcff2365TDYa 10962dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersvoid Thread::SirtVisitRoots(RootVisitor* visitor, void* arg) { 109740381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom for (StackIndirectReferenceTable* cur = top_sirt_; cur; cur = cur->GetLink()) { 10988dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao size_t num_refs = cur->NumberOfReferences(); 10998dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao for (size_t j = 0; j < num_refs; j++) { 11002dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* object = cur->GetReference(j); 1101423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (object != nullptr) { 1102423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier const mirror::Object* new_obj = visitor(object, arg); 1103423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier DCHECK(new_obj != nullptr); 1104423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (new_obj != object) { 1105423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier cur->SetReference(j, const_cast<mirror::Object*>(new_obj)); 1106423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier } 11075e73f9c8990819054f8e0a60061ee8beff1e024aBrian Carlstrom } 11088dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao } 11098dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao } 11108dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao} 11118dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao 11122dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersmirror::Object* Thread::DecodeJObject(jobject obj) const { 111381d425b0b232962441616f8b14f73620bffef5e5Ian Rogers Locks::mutator_lock_->AssertSharedHeld(this); 1114408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers if (obj == NULL) { 1115408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers return NULL; 1116408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1117408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers IndirectRef ref = reinterpret_cast<IndirectRef>(obj); 1118408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers IndirectRefKind kind = GetIndirectRefKind(ref); 11192dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* result; 11204f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers // The "kinds" below are sorted by the frequency we expect to encounter them. 11214f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (kind == kLocal) { 11224f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers IndirectReferenceTable& locals = jni_env_->locals; 11234f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers result = const_cast<mirror::Object*>(locals.Get(ref)); 11244f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers } else if (kind == kSirtOrInvalid) { 1125408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // TODO: make stack indirect reference table lookup more efficient 1126408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Check if this is a local reference in the SIRT 11274f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (LIKELY(SirtContains(obj))) { 11282dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers result = *reinterpret_cast<mirror::Object**>(obj); // Read from SIRT 1129c2dc62d1c9241dfe880a81698713c314b13aa63fElliott Hughes } else if (Runtime::Current()->GetJavaVM()->work_around_app_jni_bugs) { 1130408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Assume an invalid local reference is actually a direct pointer. 11312dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers result = reinterpret_cast<mirror::Object*>(obj); 1132408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } else { 1133a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes result = kInvalidIndirectRefObject; 1134408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 11354f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers } else if (kind == kGlobal) { 11364f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers JavaVMExt* vm = Runtime::Current()->GetJavaVM(); 11374f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers IndirectReferenceTable& globals = vm->globals; 1138b8a0b94735f188bc739e4c55479c37699006b881Ian Rogers ReaderMutexLock mu(const_cast<Thread*>(this), vm->globals_lock); 11394f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers result = const_cast<mirror::Object*>(globals.Get(ref)); 11404f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers } else { 11414f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers DCHECK_EQ(kind, kWeakGlobal); 1142c11d9b8870de5f860b13c84003ade7b3f3125a52Mathieu Chartier result = Runtime::Current()->GetJavaVM()->DecodeWeakGlobal(const_cast<Thread*>(this), ref); 11434f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (result == kClearedJniWeakGlobal) { 11444f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers // This is a special case where it's okay to return NULL. 11454f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers return NULL; 11464f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers } 1147408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1148408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers 11494f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (UNLIKELY(result == NULL)) { 11503f6635a2c84d645002f651c312d53f8348646c1fElliott Hughes JniAbortF(NULL, "use of deleted %s %p", ToStr<IndirectRefKind>(kind).c_str(), obj); 1151a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes } else { 11524f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (kIsDebugBuild && (result != kInvalidIndirectRefObject)) { 1153b3bd5f07884f5a1f2b84224363b1372d7c28d447Elliott Hughes Runtime::Current()->GetHeap()->VerifyObject(result); 1154a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes } 1155408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1156408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers return result; 1157408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers} 1158408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers 115981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers// Implements java.lang.Thread.interrupted. 116081d425b0b232962441616f8b14f73620bffef5e5Ian Rogersbool Thread::Interrupted() { 116150b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers MutexLock mu(Thread::Current(), *wait_mutex_); 116281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers bool interrupted = interrupted_; 116381d425b0b232962441616f8b14f73620bffef5e5Ian Rogers interrupted_ = false; 116481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers return interrupted; 116581d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 116681d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 116781d425b0b232962441616f8b14f73620bffef5e5Ian Rogers// Implements java.lang.Thread.isInterrupted. 116881d425b0b232962441616f8b14f73620bffef5e5Ian Rogersbool Thread::IsInterrupted() { 116950b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers MutexLock mu(Thread::Current(), *wait_mutex_); 117081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers return interrupted_; 117181d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 117281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 117381d425b0b232962441616f8b14f73620bffef5e5Ian Rogersvoid Thread::Interrupt() { 1174c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers Thread* self = Thread::Current(); 1175c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers MutexLock mu(self, *wait_mutex_); 117681d425b0b232962441616f8b14f73620bffef5e5Ian Rogers if (interrupted_) { 117781d425b0b232962441616f8b14f73620bffef5e5Ian Rogers return; 117881d425b0b232962441616f8b14f73620bffef5e5Ian Rogers } 117981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers interrupted_ = true; 1180c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers NotifyLocked(self); 118181d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 118281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 118381d425b0b232962441616f8b14f73620bffef5e5Ian Rogersvoid Thread::Notify() { 1184c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers Thread* self = Thread::Current(); 1185c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers MutexLock mu(self, *wait_mutex_); 1186c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers NotifyLocked(self); 118781d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 118881d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 1189c604d731730b43231f63040c8db1d58304da0cf3Ian Rogersvoid Thread::NotifyLocked(Thread* self) { 119081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers if (wait_monitor_ != NULL) { 1191c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers wait_cond_->Signal(self); 119281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers } 119381d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 119481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 11950399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass CountStackDepthVisitor : public StackVisitor { 11969b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao public: 119793ba893c20532990a430741e0a97212900094e8cBrian Carlstrom explicit CountStackDepthVisitor(Thread* thread) 1198b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 11997a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers : StackVisitor(thread, NULL), 120008fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes depth_(0), skip_depth_(0), skipping_(true) {} 1201d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 1202b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 120329f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes // We want to skip frames up to and including the exception's constructor. 12049086572fa809d1a19d886b467e4da3ce42016982Ian Rogers // Note we also skip the frame if it doesn't have a method (namely the callee 12059086572fa809d1a19d886b467e4da3ce42016982Ian Rogers // save frame) 1206ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = GetMethod(); 12070399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (skipping_ && !m->IsRuntimeMethod() && 12082dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers !mirror::Throwable::GetJavaLangThrowable()->IsAssignableFrom(m->GetDeclaringClass())) { 120929f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes skipping_ = false; 121029f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 121129f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes if (!skipping_) { 12120399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (!m->IsRuntimeMethod()) { // Ignore runtime frames (in particular callee save). 12136b0870dfaaa2e69a900ad7ed88e4e1d3697445aaIan Rogers ++depth_; 12146b0870dfaaa2e69a900ad7ed88e4e1d3697445aaIan Rogers } 121529f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } else { 121629f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes ++skip_depth_; 121729f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 1218530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 12199b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 12209b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 12219b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao int GetDepth() const { 1222aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers return depth_; 12239b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 12249b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 122529f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes int GetSkipDepth() const { 122629f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes return skip_depth_; 122729f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 122829f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes 12299b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao private: 1230aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers uint32_t depth_; 123129f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes uint32_t skip_depth_; 123229f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes bool skipping_; 12339b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao}; 12349b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 12350399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass BuildInternalStackTraceVisitor : public StackVisitor { 12369b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao public: 12377a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers explicit BuildInternalStackTraceVisitor(Thread* self, Thread* thread, int skip_depth) 12387a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers : StackVisitor(thread, NULL), self_(self), 123908fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes skip_depth_(skip_depth), count_(0), dex_pc_trace_(NULL), method_trace_(NULL) {} 1240283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers 12411f5393447b9f45be7918042d9ee7b521376de866Ian Rogers bool Init(int depth) 1242b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1243aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Allocate method trace with an extra slot that will hold the PC trace 12442dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::ObjectArray<mirror::Object> > 12451f5393447b9f45be7918042d9ee7b521376de866Ian Rogers method_trace(self_, 12462dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers Runtime::Current()->GetClassLinker()->AllocObjectArray<mirror::Object>(self_, 12472dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers depth + 1)); 12480399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (method_trace.get() == NULL) { 1249283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers return false; 1250726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes } 12512dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::IntArray* dex_pc_trace = mirror::IntArray::Alloc(self_, depth); 12520399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (dex_pc_trace == NULL) { 1253283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers return false; 1254726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes } 1255aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Save PC trace in last element of method trace, also places it into the 1256aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // object graph. 12570399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers method_trace->Set(depth, dex_pc_trace); 12580399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Set the Object*s and assert that no thread suspension is now possible. 125952673ffae0025d86f4023735581f19ebcc477487Ian Rogers const char* last_no_suspend_cause = 12601f5393447b9f45be7918042d9ee7b521376de866Ian Rogers self_->StartAssertNoThreadSuspension("Building internal stack trace"); 126152673ffae0025d86f4023735581f19ebcc477487Ian Rogers CHECK(last_no_suspend_cause == NULL) << last_no_suspend_cause; 12620399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers method_trace_ = method_trace.get(); 12630399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers dex_pc_trace_ = dex_pc_trace; 1264283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers return true; 12659b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 12669b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 12670399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers virtual ~BuildInternalStackTraceVisitor() { 126852673ffae0025d86f4023735581f19ebcc477487Ian Rogers if (method_trace_ != NULL) { 12691f5393447b9f45be7918042d9ee7b521376de866Ian Rogers self_->EndAssertNoThreadSuspension(NULL); 127052673ffae0025d86f4023735581f19ebcc477487Ian Rogers } 12710399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 12729b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 1273b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 12740399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (method_trace_ == NULL || dex_pc_trace_ == NULL) { 12757934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom return true; // We're probably trying to fillInStackTrace for an OutOfMemoryError. 1276726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes } 127729f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes if (skip_depth_ > 0) { 127829f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes skip_depth_--; 1279530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 128029f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 1281ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = GetMethod(); 12820399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (m->IsRuntimeMethod()) { 12830399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return true; // Ignore runtime frames (in particular callee save). 12846b0870dfaaa2e69a900ad7ed88e4e1d3697445aaIan Rogers } 12850399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers method_trace_->Set(count_, m); 1286228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao dex_pc_trace_->Set(count_, m->IsProxyMethod() ? DexFile::kDexNoIndex : GetDexPc()); 1287aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers ++count_; 1288530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 12899b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 12909b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 12912dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::Object>* GetInternalStackTrace() const { 12920399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return method_trace_; 12939b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 12949b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 12959b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao private: 12961f5393447b9f45be7918042d9ee7b521376de866Ian Rogers Thread* const self_; 129729f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes // How many more frames to skip. 129829f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes int32_t skip_depth_; 12990399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Current position down stack trace. 1300aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers uint32_t count_; 13010399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Array of dex PC values. 13022dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::IntArray* dex_pc_trace_; 13030399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // An array of the methods on the stack, the last entry is a reference to the PC trace. 13042dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::Object>* method_trace_; 13059b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao}; 13069b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 130764b6d145fa53b8dfb07a8fc2426af13f155d5a4dIan Rogersjobject Thread::CreateInternalStackTrace(const ScopedObjectAccessUnchecked& soa) const { 1308aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Compute depth of stack 13097a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers CountStackDepthVisitor count_visitor(const_cast<Thread*>(this)); 13100399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers count_visitor.WalkStack(); 13119b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao int32_t depth = count_visitor.GetDepth(); 131229f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes int32_t skip_depth = count_visitor.GetSkipDepth(); 13134417536522fd2a9d8215d8672331984769c9520bShih-wei Liao 13141f5393447b9f45be7918042d9ee7b521376de866Ian Rogers // Build internal stack trace. 13157a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers BuildInternalStackTraceVisitor build_trace_visitor(soa.Self(), const_cast<Thread*>(this), 13167a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers skip_depth); 13171f5393447b9f45be7918042d9ee7b521376de866Ian Rogers if (!build_trace_visitor.Init(depth)) { 13181f5393447b9f45be7918042d9ee7b521376de866Ian Rogers return NULL; // Allocation failed. 1319283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers } 13200399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers build_trace_visitor.WalkStack(); 13212dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::Object>* trace = build_trace_visitor.GetInternalStackTrace(); 13227a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers if (kIsDebugBuild) { 13237a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers for (int32_t i = 0; i < trace->GetLength(); ++i) { 13247a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers CHECK(trace->Get(i) != NULL); 13257a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers } 13267a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers } 13277a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers return soa.AddLocalReference<jobjectArray>(trace); 1328aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers} 1329aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 133001158d7a57c8321370667a6045220237d16e0da8Elliott HughesjobjectArray Thread::InternalStackTraceToStackTraceElementArray(JNIEnv* env, jobject internal, 133101158d7a57c8321370667a6045220237d16e0da8Elliott Hughes jobjectArray output_array, int* stack_depth) { 1332aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Transition into runnable state to work on Object*/Array* 133300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(env); 1334aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Decode the internal stack trace into the depth, method trace and PC trace 1335530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier int32_t depth = soa.Decode<mirror::ObjectArray<mirror::Object>*>(internal)->GetLength() - 1; 1336aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 1337aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 1338aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 133901158d7a57c8321370667a6045220237d16e0da8Elliott Hughes jobjectArray result; 1340530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier 134101158d7a57c8321370667a6045220237d16e0da8Elliott Hughes if (output_array != NULL) { 134201158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Reuse the array we were given. 134301158d7a57c8321370667a6045220237d16e0da8Elliott Hughes result = output_array; 134401158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // ...adjusting the number of frames we'll write to not exceed the array length. 1345530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier const int32_t traces_length = 1346530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier soa.Decode<mirror::ObjectArray<mirror::StackTraceElement>*>(result)->GetLength(); 1347530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier depth = std::min(depth, traces_length); 134801158d7a57c8321370667a6045220237d16e0da8Elliott Hughes } else { 134901158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Create java_trace array and place in local reference table 1350530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier mirror::ObjectArray<mirror::StackTraceElement>* java_traces = 1351530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier class_linker->AllocStackTraceElementArray(soa.Self(), depth); 135230646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes if (java_traces == NULL) { 135330646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes return NULL; 135430646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 135500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers result = soa.AddLocalReference<jobjectArray>(java_traces); 135601158d7a57c8321370667a6045220237d16e0da8Elliott Hughes } 135701158d7a57c8321370667a6045220237d16e0da8Elliott Hughes 135801158d7a57c8321370667a6045220237d16e0da8Elliott Hughes if (stack_depth != NULL) { 135901158d7a57c8321370667a6045220237d16e0da8Elliott Hughes *stack_depth = depth; 136001158d7a57c8321370667a6045220237d16e0da8Elliott Hughes } 136155df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao 13629b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao for (int32_t i = 0; i < depth; ++i) { 1363530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier mirror::ObjectArray<mirror::Object>* method_trace = 1364530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier soa.Decode<mirror::ObjectArray<mirror::Object>*>(internal); 1365aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Prepare parameters for StackTraceElement(String cls, String method, String file, int line) 1366ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* method = down_cast<mirror::ArtMethod*>(method_trace->Get(i)); 1367590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier MethodHelper mh(method); 1368228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao int32_t line_number; 1369228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao SirtRef<mirror::String> class_name_object(soa.Self(), NULL); 1370228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao SirtRef<mirror::String> source_name_object(soa.Self(), NULL); 1371228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao if (method->IsProxyMethod()) { 1372228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao line_number = -1; 1373228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao class_name_object.reset(method->GetDeclaringClass()->GetName()); 1374228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao // source_name_object intentionally left null for proxy methods 1375228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao } else { 1376228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao mirror::IntArray* pc_trace = down_cast<mirror::IntArray*>(method_trace->Get(depth)); 1377228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao uint32_t dex_pc = pc_trace->Get(i); 1378228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao line_number = mh.GetLineNumFromDexPC(dex_pc); 1379228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao // Allocate element, potentially triggering GC 1380228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao // TODO: reuse class_name_object via Class::name_? 1381228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao const char* descriptor = mh.GetDeclaringClassDescriptor(); 1382228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao CHECK(descriptor != NULL); 1383228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao std::string class_name(PrettyDescriptor(descriptor)); 1384228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao class_name_object.reset(mirror::String::AllocFromModifiedUtf8(soa.Self(), class_name.c_str())); 1385228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao if (class_name_object.get() == NULL) { 1386228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao return NULL; 1387228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao } 1388228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao const char* source_file = mh.GetDeclaringClassSourceFile(); 1389228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao source_name_object.reset(mirror::String::AllocFromModifiedUtf8(soa.Self(), source_file)); 1390228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao if (source_name_object.get() == NULL) { 1391228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao return NULL; 1392228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao } 139340381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom } 1394486013193c94b4321414c28ce9251911e14a0599Ian Rogers const char* method_name = mh.GetName(); 1395486013193c94b4321414c28ce9251911e14a0599Ian Rogers CHECK(method_name != NULL); 13962dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::String> method_name_object(soa.Self(), 13972dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::String::AllocFromModifiedUtf8(soa.Self(), 13982dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers method_name)); 13996d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers if (method_name_object.get() == NULL) { 14006d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers return NULL; 14016d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers } 1402590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier mirror::StackTraceElement* obj = mirror::StackTraceElement::Alloc( 1403590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier soa.Self(), class_name_object, method_name_object, source_name_object, line_number); 140430646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes if (obj == NULL) { 140530646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes return NULL; 140630646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 1407530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier soa.Decode<mirror::ObjectArray<mirror::StackTraceElement>*>(result)->Set(i, obj); 140855df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao } 1409aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers return result; 141055df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao} 141155df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao 141262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::ThrowNewExceptionF(const ThrowLocation& throw_location, 141362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* exception_class_descriptor, const char* fmt, ...) { 1414a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes va_list args; 1415a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes va_start(args, fmt); 141662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNewExceptionV(throw_location, exception_class_descriptor, 141762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers fmt, args); 1418a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes va_end(args); 14194a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes} 14204a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes 142162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::ThrowNewExceptionV(const ThrowLocation& throw_location, 142262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* exception_class_descriptor, 142362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* fmt, va_list ap) { 14244a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes std::string msg; 14254a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes StringAppendV(&msg, fmt, ap); 142662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNewException(throw_location, exception_class_descriptor, msg.c_str()); 14275cb5ad27944efb08d4556b3c0d362302e37e832bElliott Hughes} 142837f7a40f6789bb287f287a9af00777af9d6428eeElliott Hughes 142962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::ThrowNewException(const ThrowLocation& throw_location, const char* exception_class_descriptor, 143062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* msg) { 14317934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom AssertNoPendingException(); // Callers should either clear or call ThrowNewWrappedException. 143262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNewWrappedException(throw_location, exception_class_descriptor, msg); 143362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers} 143462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 143562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::ThrowNewWrappedException(const ThrowLocation& throw_location, 143662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* exception_class_descriptor, 143762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* msg) { 143862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK_EQ(this, Thread::Current()); 143962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Ensure we don't forget arguments over object allocation. 144062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::Object> saved_throw_this(this, throw_location.GetThis()); 1441ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom SirtRef<mirror::ArtMethod> saved_throw_method(this, throw_location.GetMethod()); 144262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Ignore the cause throw location. TODO: should we report this as a re-throw? 144362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::Throwable> cause(this, GetException(NULL)); 144462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ClearException(); 144562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers Runtime* runtime = Runtime::Current(); 1446a4f94740f9d66b21f4bcd3a225c434aa29cfa323Elliott Hughes 144762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::ClassLoader* cl = NULL; 144862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (throw_location.GetMethod() != NULL) { 144962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers cl = throw_location.GetMethod()->GetDeclaringClass()->GetClassLoader(); 145062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 1451590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier SirtRef<mirror::ClassLoader> class_loader(this, cl); 145262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::Class> 1453590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier exception_class(this, runtime->GetClassLinker()->FindClass(exception_class_descriptor, 1454590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier class_loader)); 145562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (UNLIKELY(exception_class.get() == NULL)) { 145630646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes CHECK(IsExceptionPending()); 145762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers LOG(ERROR) << "No exception class " << PrettyDescriptor(exception_class_descriptor); 145830646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes return; 145930646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 146062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 146162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (UNLIKELY(!runtime->GetClassLinker()->EnsureInitialized(exception_class.get(), true, true))) { 146262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK(IsExceptionPending()); 146362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return; 146462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 146562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK(!runtime->IsStarted() || exception_class->IsThrowableClass()); 146662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::Throwable> exception(this, 146762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers down_cast<mirror::Throwable*>(exception_class->AllocObject(this))); 146862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 1469590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier // If we couldn't allocate the exception, throw the pre-allocated out of memory exception. 1470590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier if (exception.get() == nullptr) { 1471590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier SetException(throw_location, Runtime::Current()->GetPreAllocatedOutOfMemoryError()); 1472590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier return; 1473590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier } 1474590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier 147562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Choose an appropriate constructor and set up the arguments. 147662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* signature; 147762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::String> msg_string(this, NULL); 147862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (msg != NULL) { 147962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Ensure we remember this and the method over the String allocation. 148062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers msg_string.reset(mirror::String::AllocFromModifiedUtf8(this, msg)); 148162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (UNLIKELY(msg_string.get() == NULL)) { 148262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CHECK(IsExceptionPending()); // OOME. 148362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return; 148462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 148562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (cause.get() == NULL) { 148662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers signature = "(Ljava/lang/String;)V"; 1487ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom } else { 148862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers signature = "(Ljava/lang/String;Ljava/lang/Throwable;)V"; 148962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 149062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 149162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (cause.get() == NULL) { 149262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers signature = "()V"; 149362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 149462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers signature = "(Ljava/lang/Throwable;)V"; 1495ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom } 1496ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom } 1497ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* exception_init_method = 149862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception_class->FindDeclaredDirectMethod("<init>", signature); 149962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 150062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CHECK(exception_init_method != NULL) << "No <init>" << signature << " in " 150162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers << PrettyDescriptor(exception_class_descriptor); 150262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 150362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (UNLIKELY(!runtime->IsStarted())) { 150462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Something is trying to throw an exception without a started runtime, which is the common 150562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // case in the compiler. We won't be able to invoke the constructor of the exception, so set 150662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // the exception fields directly. 150762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (msg != NULL) { 150862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception->SetDetailMessage(msg_string.get()); 150962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 151062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (cause.get() != NULL) { 151162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception->SetCause(cause.get()); 151262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 151362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation gc_safe_throw_location(saved_throw_this.get(), saved_throw_method.get(), 151462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers throw_location.GetDexPc()); 151562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SetException(gc_safe_throw_location, exception.get()); 151662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 151762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ArgArray args("VLL", 3); 151862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers args.Append(reinterpret_cast<uint32_t>(exception.get())); 151962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (msg != NULL) { 152062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers args.Append(reinterpret_cast<uint32_t>(msg_string.get())); 152162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 152262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (cause.get() != NULL) { 152362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers args.Append(reinterpret_cast<uint32_t>(cause.get())); 152462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 152562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers JValue result; 152662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception_init_method->Invoke(this, args.GetArray(), args.GetNumBytes(), &result, 'V'); 152762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (LIKELY(!IsExceptionPending())) { 152862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation gc_safe_throw_location(saved_throw_this.get(), saved_throw_method.get(), 152962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers throw_location.GetDexPc()); 153062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SetException(gc_safe_throw_location, exception.get()); 153162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 153230646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 1533a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes} 1534a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes 15352ced6a534157d5d963693346904389c19775d2daElliott Hughesvoid Thread::ThrowOutOfMemoryError(const char* msg) { 15362ced6a534157d5d963693346904389c19775d2daElliott Hughes LOG(ERROR) << StringPrintf("Throwing OutOfMemoryError \"%s\"%s", 15372ced6a534157d5d963693346904389c19775d2daElliott Hughes msg, (throwing_OutOfMemoryError_ ? " (recursive case)" : "")); 153862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation throw_location = GetCurrentLocationForThrow(); 1539726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes if (!throwing_OutOfMemoryError_) { 1540726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes throwing_OutOfMemoryError_ = true; 154162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNewException(throw_location, "Ljava/lang/OutOfMemoryError;", msg); 154233e15bcb4c0873cbce9d039fbc9bc7f4cf257765Ian Rogers throwing_OutOfMemoryError_ = false; 1543418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes } else { 15447934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom Dump(LOG(ERROR)); // The pre-allocated OOME has no stack, so help out and log one. 154562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SetException(throw_location, Runtime::Current()->GetPreAllocatedOutOfMemoryError()); 1546418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes } 154779082e367845bbd68ec44ef2ddd1be8ef0e1550fElliott Hughes} 154879082e367845bbd68ec44ef2ddd1be8ef0e1550fElliott Hughes 1549498508c1187dc07d3eae5476784cde20f5224d93Elliott HughesThread* Thread::CurrentFromGdb() { 1550accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes return Thread::Current(); 1551accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes} 1552accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1553accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughesvoid Thread::DumpFromGdb() const { 15546b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom std::ostringstream ss; 15556b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom Dump(ss); 1556955724179c6c739524f610023287f56b24dc31deElliott Hughes std::string str(ss.str()); 15576b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom // log to stderr for debugging command line processes 15586b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom std::cerr << str; 15596b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom#ifdef HAVE_ANDROID_OS 15606b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom // log to logcat for debugging frameworks processes 15616b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom LOG(INFO) << str; 15626b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom#endif 1563accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes} 1564accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 156598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughesstruct EntryPointInfo { 156698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes uint32_t offset; 156798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes const char* name; 156898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes}; 1569848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers#define INTERPRETER_ENTRY_POINT_INFO(x) { INTERPRETER_ENTRYPOINT_OFFSET(x).Uint32Value(), #x } 1570848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers#define JNI_ENTRY_POINT_INFO(x) { JNI_ENTRYPOINT_OFFSET(x).Uint32Value(), #x } 1571848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers#define PORTABLE_ENTRY_POINT_INFO(x) { PORTABLE_ENTRYPOINT_OFFSET(x).Uint32Value(), #x } 1572848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers#define QUICK_ENTRY_POINT_INFO(x) { QUICK_ENTRYPOINT_OFFSET(x).Uint32Value(), #x } 157398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughesstatic const EntryPointInfo gThreadEntryPointInfo[] = { 1574848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers INTERPRETER_ENTRY_POINT_INFO(pInterpreterToInterpreterBridge), 1575848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers INTERPRETER_ENTRY_POINT_INFO(pInterpreterToCompiledCodeBridge), 1576848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers JNI_ENTRY_POINT_INFO(pDlsymLookup), 157788474b416eb257078e590bf9bc7957cee604a186Jeff Hao PORTABLE_ENTRY_POINT_INFO(pPortableImtConflictTrampoline), 1578848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers PORTABLE_ENTRY_POINT_INFO(pPortableResolutionTrampoline), 1579848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers PORTABLE_ENTRY_POINT_INFO(pPortableToInterpreterBridge), 1580848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pAllocArray), 1581848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pAllocArrayWithAccessCheck), 1582848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pAllocObject), 1583848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pAllocObjectWithAccessCheck), 1584848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pCheckAndAllocArray), 1585848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pCheckAndAllocArrayWithAccessCheck), 1586848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pInstanceofNonTrivial), 1587848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pCheckCast), 15887655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pInitializeStaticStorage), 1589848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pInitializeTypeAndVerifyAccess), 1590848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pInitializeType), 1591848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pResolveString), 15927655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pSet32Instance), 15937655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pSet32Static), 15947655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pSet64Instance), 15957655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pSet64Static), 15967655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pSetObjInstance), 15977655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pSetObjStatic), 15987655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pGet32Instance), 15997655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pGet32Static), 16007655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pGet64Instance), 16017655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pGet64Static), 16027655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pGetObjInstance), 16037655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pGetObjStatic), 1604a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers QUICK_ENTRY_POINT_INFO(pAputObjectWithNullAndBoundCheck), 1605a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers QUICK_ENTRY_POINT_INFO(pAputObjectWithBoundCheck), 1606a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers QUICK_ENTRY_POINT_INFO(pAputObject), 1607848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pHandleFillArrayData), 16087655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodStart), 16097655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodStartSynchronized), 16107655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodEnd), 16117655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodEndSynchronized), 16127655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodEndWithReference), 16137655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodEndWithReferenceSynchronized), 1614848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pLockObject), 1615848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pUnlockObject), 16167655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pCmpgDouble), 16177655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pCmpgFloat), 16187655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pCmplDouble), 16197655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pCmplFloat), 16207655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pFmod), 16217655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pSqrt), 16227655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pL2d), 16237655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pFmodf), 16247655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pL2f), 16257655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pD2iz), 16267655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pF2iz), 16277655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pIdivmod), 16287655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pD2l), 16297655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pF2l), 16307655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pLdiv), 1631a9a8254c920ce8e22210abfc16c9842ce0aea28fIan Rogers QUICK_ENTRY_POINT_INFO(pLmod), 16327655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pLmul), 16337655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pShlLong), 16347655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pShrLong), 16357655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pUshrLong), 16367655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pIndexOf), 16377655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pMemcmp16), 16387655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pStringCompareTo), 16397655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pMemcpy), 164088474b416eb257078e590bf9bc7957cee604a186Jeff Hao QUICK_ENTRY_POINT_INFO(pQuickImtConflictTrampoline), 1641848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pQuickResolutionTrampoline), 1642848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pQuickToInterpreterBridge), 16437655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pInvokeDirectTrampolineWithAccessCheck), 16447655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pInvokeInterfaceTrampolineWithAccessCheck), 16457655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pInvokeStaticTrampolineWithAccessCheck), 16467655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pInvokeSuperTrampolineWithAccessCheck), 16477655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pInvokeVirtualTrampolineWithAccessCheck), 1648848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pCheckSuspend), 1649848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pTestSuspend), 16507655f29fabc0a12765de828914a18314382e5a35Ian Rogers QUICK_ENTRY_POINT_INFO(pDeliverException), 1651848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pThrowArrayBounds), 1652848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pThrowDivZero), 1653848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pThrowNoSuchMethod), 1654848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pThrowNullPointer), 1655848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers QUICK_ENTRY_POINT_INFO(pThrowStackOverflow), 165698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes}; 16577655f29fabc0a12765de828914a18314382e5a35Ian Rogers#undef QUICK_ENTRY_POINT_INFO 165898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes 165928fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughesvoid Thread::DumpThreadOffset(std::ostream& os, uint32_t offset, size_t size_of_pointers) { 16607934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom CHECK_EQ(size_of_pointers, 4U); // TODO: support 64-bit targets. 166198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes 1662f69863b3039fc621ff4250e262d2a024d5e79ec8Brian Carlstrom#define DO_THREAD_OFFSET(x) \ 1663f69863b3039fc621ff4250e262d2a024d5e79ec8Brian Carlstrom if (offset == static_cast<uint32_t>(OFFSETOF_VOLATILE_MEMBER(Thread, x))) { \ 1664f69863b3039fc621ff4250e262d2a024d5e79ec8Brian Carlstrom os << # x; \ 1665f69863b3039fc621ff4250e262d2a024d5e79ec8Brian Carlstrom return; \ 1666f69863b3039fc621ff4250e262d2a024d5e79ec8Brian Carlstrom } 1667474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers DO_THREAD_OFFSET(state_and_flags_); 166898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(card_table_); 166998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(exception_); 167007ec8e17c978e3bda0202693e6432b56349a5867Ian Rogers DO_THREAD_OFFSET(opeer_); 167198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(jni_env_); 167298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(self_); 167398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(stack_end_); 167498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(suspend_count_); 1675d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers DO_THREAD_OFFSET(thin_lock_thread_id_); 16767934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom // DO_THREAD_OFFSET(top_of_managed_stack_); 16777934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom // DO_THREAD_OFFSET(top_of_managed_stack_pc_); 167898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(top_sirt_); 167928fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes#undef DO_THREAD_OFFSET 168098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes 168198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes size_t entry_point_count = arraysize(gThreadEntryPointInfo); 16827655f29fabc0a12765de828914a18314382e5a35Ian Rogers CHECK_EQ(entry_point_count * size_of_pointers, 1683848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers sizeof(InterpreterEntryPoints) + sizeof(JniEntryPoints) + sizeof(PortableEntryPoints) + 1684848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers sizeof(QuickEntryPoints)); 1685848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers uint32_t expected_offset = OFFSETOF_MEMBER(Thread, interpreter_entrypoints_); 168698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes for (size_t i = 0; i < entry_point_count; ++i) { 1687474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers CHECK_EQ(gThreadEntryPointInfo[i].offset, expected_offset) << gThreadEntryPointInfo[i].name; 168898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes expected_offset += size_of_pointers; 168998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes if (gThreadEntryPointInfo[i].offset == offset) { 169098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes os << gThreadEntryPointInfo[i].name; 169198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes return; 169298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes } 169398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes } 169498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes os << offset; 169528fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes} 169628fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes 16970399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersstatic const bool kDebugExceptionDelivery = false; 16980399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass CatchBlockStackVisitor : public StackVisitor { 1699bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers public: 170062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CatchBlockStackVisitor(Thread* self, const ThrowLocation& throw_location, 170162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Throwable* exception, bool is_deoptimization) 1702b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 17037a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers : StackVisitor(self, self->GetLongJumpContext()), 170462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers self_(self), exception_(exception), is_deoptimization_(is_deoptimization), 170562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers to_find_(is_deoptimization ? NULL : exception->GetClass()), throw_location_(throw_location), 170662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers handler_quick_frame_(NULL), handler_quick_frame_pc_(0), handler_dex_pc_(0), 1707c449aa8151bf81d93d22ff24677ccf09a6da218eIan Rogers native_method_count_(0), clear_exception_(false), 170862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers method_tracing_active_(is_deoptimization || 170962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers Runtime::Current()->GetInstrumentation()->AreExitStubsInstalled()), 171062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers instrumentation_frames_to_pop_(0), top_shadow_frame_(NULL), prev_shadow_frame_(NULL) { 171152673ffae0025d86f4023735581f19ebcc477487Ian Rogers // Exception not in root sets, can't allow GC. 171252673ffae0025d86f4023735581f19ebcc477487Ian Rogers last_no_assert_suspension_cause_ = self->StartAssertNoThreadSuspension("Finding catch block"); 171352673ffae0025d86f4023735581f19ebcc477487Ian Rogers } 171452673ffae0025d86f4023735581f19ebcc477487Ian Rogers 171552673ffae0025d86f4023735581f19ebcc477487Ian Rogers ~CatchBlockStackVisitor() { 171652673ffae0025d86f4023735581f19ebcc477487Ian Rogers LOG(FATAL) << "UNREACHABLE"; // Expected to take long jump. 171767375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers } 1718bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 171962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1720ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* method = GetMethod(); 1721530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes if (method == NULL) { 17220399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // This is the upcall, we remember the frame and last pc so that we may long jump to them. 17230399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers handler_quick_frame_pc_ = GetCurrentQuickFramePc(); 17240399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers handler_quick_frame_ = GetCurrentQuickFrame(); 172557b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return false; // End stack walk. 1726530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes } else { 172762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (UNLIKELY(method_tracing_active_ && 1728848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers GetQuickInstrumentationExitPc() == GetReturnPc())) { 172962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Keep count of the number of unwinds during instrumentation. 173062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers instrumentation_frames_to_pop_++; 17310399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 173262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (method->IsRuntimeMethod()) { 173362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Ignore callee save method. 173462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK(method->IsCalleeSaveMethod()); 173562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return true; 173662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else if (is_deoptimization_) { 173762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return HandleDeoptimization(method); 17380399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } else { 173962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return HandleTryItems(method); 1740bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers } 1741530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes } 174262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 174362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 1744ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom bool HandleTryItems(mirror::ArtMethod* method) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 174562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers uint32_t dex_pc = DexFile::kDexNoIndex; 174662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (method->IsNative()) { 174762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers native_method_count_++; 174862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 174962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers dex_pc = GetDexPc(); 175062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 1751530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes if (dex_pc != DexFile::kDexNoIndex) { 1752c449aa8151bf81d93d22ff24677ccf09a6da218eIan Rogers uint32_t found_dex_pc = method->FindCatchBlock(to_find_, dex_pc, &clear_exception_); 1753530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes if (found_dex_pc != DexFile::kDexNoIndex) { 17540399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers handler_dex_pc_ = found_dex_pc; 17550c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers handler_quick_frame_pc_ = method->ToNativePc(found_dex_pc); 17560399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers handler_quick_frame_ = GetCurrentQuickFrame(); 175757b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return false; // End stack walk. 1758bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers } 17591a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 176057b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return true; // Continue stack walk. 17611a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 17621a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 1763590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier bool HandleDeoptimization(mirror::ArtMethod* m) 1764590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 176562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers MethodHelper mh(m); 176662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const DexFile::CodeItem* code_item = mh.GetCodeItem(); 176762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CHECK(code_item != NULL); 1768590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier uint16_t num_regs = code_item->registers_size_; 176962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers uint32_t dex_pc = GetDexPc(); 177062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const Instruction* inst = Instruction::At(code_item->insns_ + dex_pc); 177162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers uint32_t new_dex_pc = dex_pc + inst->SizeInCodeUnits(); 177262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ShadowFrame* new_frame = ShadowFrame::Create(num_regs, NULL, m, new_dex_pc); 1773590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier SirtRef<mirror::DexCache> dex_cache(self_, mh.GetDexCache()); 1774590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier SirtRef<mirror::ClassLoader> class_loader(self_, mh.GetClassLoader()); 1775590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier verifier::MethodVerifier verifier(&mh.GetDexFile(), &dex_cache, &class_loader, 1776590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier &mh.GetClassDef(), code_item, m->GetDexMethodIndex(), m, 1777590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier m->GetAccessFlags(), false, true); 177862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers verifier.Verify(); 177962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers std::vector<int32_t> kinds = verifier.DescribeVRegs(dex_pc); 1780df62950e7a32031b82360c407d46a37b94188fbbBrian Carlstrom for (uint16_t reg = 0; reg < num_regs; reg++) { 178162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers VRegKind kind = static_cast<VRegKind>(kinds.at(reg * 2)); 178262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers switch (kind) { 178362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers case kUndefined: 178462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers new_frame->SetVReg(reg, 0xEBADDE09); 178562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers break; 178662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers case kConstant: 178762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers new_frame->SetVReg(reg, kinds.at((reg * 2) + 1)); 178862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers break; 178962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers case kReferenceVReg: 179062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers new_frame->SetVRegReference(reg, 179162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers reinterpret_cast<mirror::Object*>(GetVReg(m, reg, kind))); 179262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers break; 179362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers default: 179462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers new_frame->SetVReg(reg, GetVReg(m, reg, kind)); 179562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers break; 179662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 179762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 179862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (prev_shadow_frame_ != NULL) { 179962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers prev_shadow_frame_->SetLink(new_frame); 180062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 180162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers top_shadow_frame_ = new_frame; 180262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 180362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers prev_shadow_frame_ = new_frame; 180462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return true; 180562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 180662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 1807b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers void DoLongJump() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1808ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* catch_method = *handler_quick_frame_; 180962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (catch_method == NULL) { 181062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (kDebugExceptionDelivery) { 18110399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers LOG(INFO) << "Handler is upcall"; 181262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 181362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 181462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CHECK(!is_deoptimization_); 181562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (kDebugExceptionDelivery) { 18164445a7e3398a6143939168097a3aa275b734504dIan Rogers const DexFile& dex_file = *catch_method->GetDeclaringClass()->GetDexCache()->GetDexFile(); 18170399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers int line_number = dex_file.GetLineNumFromPC(catch_method, handler_dex_pc_); 18180399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers LOG(INFO) << "Handler: " << PrettyMethod(catch_method) << " (line: " << line_number << ")"; 18190399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 18200399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 1821c449aa8151bf81d93d22ff24677ccf09a6da218eIan Rogers if (clear_exception_) { 1822c449aa8151bf81d93d22ff24677ccf09a6da218eIan Rogers // Exception was cleared as part of delivery. 1823c449aa8151bf81d93d22ff24677ccf09a6da218eIan Rogers DCHECK(!self_->IsExceptionPending()); 1824c449aa8151bf81d93d22ff24677ccf09a6da218eIan Rogers } else { 1825c449aa8151bf81d93d22ff24677ccf09a6da218eIan Rogers // Put exception back in root set with clear throw location. 1826c449aa8151bf81d93d22ff24677ccf09a6da218eIan Rogers self_->SetException(ThrowLocation(), exception_); 1827c449aa8151bf81d93d22ff24677ccf09a6da218eIan Rogers } 182852673ffae0025d86f4023735581f19ebcc477487Ian Rogers self_->EndAssertNoThreadSuspension(last_no_assert_suspension_cause_); 182962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Do instrumentation events after allowing thread suspension again. 183062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers instrumentation::Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation(); 183162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers for (size_t i = 0; i < instrumentation_frames_to_pop_; ++i) { 183262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // We pop the instrumentation stack here so as not to corrupt it during the stack walk. 1833fb2802da02337309ac64970e06c90bb3b1b1de3fJeff Hao if (i != instrumentation_frames_to_pop_ - 1 || self_->GetInstrumentationStack()->front().method_ != catch_method) { 1834fb2802da02337309ac64970e06c90bb3b1b1de3fJeff Hao // Don't pop the instrumentation frame of the catch handler. 1835fb2802da02337309ac64970e06c90bb3b1b1de3fJeff Hao instrumentation->PopMethodForUnwind(self_, is_deoptimization_); 1836fb2802da02337309ac64970e06c90bb3b1b1de3fJeff Hao } 183762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 183862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (!is_deoptimization_) { 183962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers instrumentation->ExceptionCaughtEvent(self_, throw_location_, catch_method, handler_dex_pc_, 184062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception_); 184162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 184262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // TODO: proper return value. 184362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers self_->SetDeoptimizationShadowFrame(top_shadow_frame_); 184462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 18450399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Place context back on thread so it will be available when we continue. 18460399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers self_->ReleaseLongJumpContext(context_); 18470399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers context_->SetSP(reinterpret_cast<uintptr_t>(handler_quick_frame_)); 18480399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers CHECK_NE(handler_quick_frame_pc_, 0u); 18490399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers context_->SetPC(handler_quick_frame_pc_); 18500399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers context_->SmashCallerSaves(); 18510399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers context_->DoLongJump(); 18520399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 18530399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 18540399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers private: 185562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers Thread* const self_; 185662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Throwable* const exception_; 185762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const bool is_deoptimization_; 18580399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // The type of the exception catch block to find. 185962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Class* const to_find_; 186062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Location of the throw. 186162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const ThrowLocation& throw_location_; 18620399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Quick frame with found handler or last frame if no handler found. 1863ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod** handler_quick_frame_; 18640399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // PC to branch to for the handler. 18650399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers uintptr_t handler_quick_frame_pc_; 18660399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Associated dex PC. 18670399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers uint32_t handler_dex_pc_; 186867375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers // Number of native methods passed in crawl (equates to number of SIRTs to pop) 186967375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers uint32_t native_method_count_; 1870c449aa8151bf81d93d22ff24677ccf09a6da218eIan Rogers // Should the exception be cleared as the catch block has no move-exception? 1871c449aa8151bf81d93d22ff24677ccf09a6da218eIan Rogers bool clear_exception_; 187257b86d47b66322693a070185fadfb43cb9c12eabIan Rogers // Is method tracing active? 187357b86d47b66322693a070185fadfb43cb9c12eabIan Rogers const bool method_tracing_active_; 187452673ffae0025d86f4023735581f19ebcc477487Ian Rogers // Support for nesting no thread suspension checks. 187552673ffae0025d86f4023735581f19ebcc477487Ian Rogers const char* last_no_assert_suspension_cause_; 187662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Number of frames to pop in long jump. 187762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers size_t instrumentation_frames_to_pop_; 187862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ShadowFrame* top_shadow_frame_; 187962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ShadowFrame* prev_shadow_frame_; 1880bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers}; 1881bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 188294d6df471a406a03bb1afba8ca3ae9c0fbf366b5jeffhaovoid Thread::QuickDeliverException() { 188362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Get exception from thread. 188462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation throw_location; 188562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Throwable* exception = GetException(&throw_location); 1886ff1ed4770bf7ff024a807b9f909b1a26abb78341Ian Rogers CHECK(exception != NULL); 188728ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers // Don't leave exception visible while we try to find the handler, which may cause class 1888d07986fad0d08cdf05505cf9230714a2cf0dd9aeElliott Hughes // resolution. 188928ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers ClearException(); 189062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers bool is_deoptimization = (exception == reinterpret_cast<mirror::Throwable*>(-1)); 189128ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (kDebugExceptionDelivery) { 189262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (!is_deoptimization) { 189362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::String* msg = exception->GetDetailMessage(); 189462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers std::string str_msg(msg != NULL ? msg->ToModifiedUtf8() : ""); 189562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DumpStack(LOG(INFO) << "Delivering exception: " << PrettyTypeOf(exception) 189662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers << ": " << str_msg << "\n"); 189762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 189862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DumpStack(LOG(INFO) << "Deoptimizing: "); 189962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 190028ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 190162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CatchBlockStackVisitor catch_finder(this, throw_location, exception, is_deoptimization); 19020399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers catch_finder.WalkStack(true); 19030399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers catch_finder.DoLongJump(); 19049a8a8889418e09bf2d4ae3f683fbb40a71c3c8f4Ian Rogers LOG(FATAL) << "UNREACHABLE"; 1905bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers} 1906bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 1907bdb0391258abc54bf77c676e36847d28a783bfe5Ian RogersContext* Thread::GetLongJumpContext() { 190885d1545e985ac689db4bad7849880e843707c862Elliott Hughes Context* result = long_jump_context_; 1909bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers if (result == NULL) { 1910bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers result = Context::Create(); 19110399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } else { 19120399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers long_jump_context_ = NULL; // Avoid context being shared. 19136702243ea2332b566d8e8b871cc9db0906d835adMathieu Chartier result->Reset(); 19141a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 1915bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers return result; 19161a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao} 19171a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 191862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersstruct CurrentMethodVisitor : public StackVisitor { 191962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CurrentMethodVisitor(Thread* thread, Context* context) 192062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 192162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers : StackVisitor(thread, context), this_object_(NULL), method_(NULL), dex_pc_(0) {} 192262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers virtual bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1923ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = GetMethod(); 192462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (m->IsRuntimeMethod()) { 192562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Continue if this is a runtime method. 192662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return true; 192762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 192862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (context_ != NULL) { 192962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers this_object_ = GetThisObject(); 19300399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 193162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers method_ = m; 193262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers dex_pc_ = GetDexPc(); 193362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return false; 193462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 193562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Object* this_object_; 1936ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* method_; 193762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers uint32_t dex_pc_; 193862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers}; 19390399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 1940ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrommirror::ArtMethod* Thread::GetCurrentMethod(uint32_t* dex_pc) const { 194162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CurrentMethodVisitor visitor(const_cast<Thread*>(this), NULL); 19420399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers visitor.WalkStack(false); 19430399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (dex_pc != NULL) { 19440399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers *dex_pc = visitor.dex_pc_; 1945d07986fad0d08cdf05505cf9230714a2cf0dd9aeElliott Hughes } 19460399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return visitor.method_; 1947ee0d3fb2fbd736484fe8c3177a4e965ea86d1c65TDYa} 194833dc7717cd16592bcc825350bea6305be9eb2ea1jeffhao 194962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian RogersThrowLocation Thread::GetCurrentLocationForThrow() { 195062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers Context* context = GetLongJumpContext(); 195162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CurrentMethodVisitor visitor(this, context); 195262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers visitor.WalkStack(false); 195362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ReleaseLongJumpContext(context); 195462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return ThrowLocation(visitor.this_object_, visitor.method_, visitor.dex_pc_); 195562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers} 195662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 19572dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersbool Thread::HoldsLock(mirror::Object* object) { 19585f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes if (object == NULL) { 19595f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes return false; 19605f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 1961d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers return object->GetLockOwnerThreadId() == thin_lock_thread_id_; 19625f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes} 19635f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes 196440e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogers// RootVisitor parameters are: (const Object* obj, size_t vreg, const StackVisitor* visitor). 196540e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogerstemplate <typename RootVisitor> 19660399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass ReferenceMapVisitor : public StackVisitor { 1967d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers public: 19687a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers ReferenceMapVisitor(Thread* thread, Context* context, const RootVisitor& visitor) 1969b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 19707a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers : StackVisitor(thread, context), visitor_(visitor) {} 1971d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 1972b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 19736a4be3a6226cec645cf905dd352e44f7968a7fa4Brian Carlstrom if (false) { 19740399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers LOG(INFO) << "Visiting stack roots in " << PrettyMethod(GetMethod()) 19750399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers << StringPrintf("@ PC:%04x", GetDexPc()); 19766a4be3a6226cec645cf905dd352e44f7968a7fa4Brian Carlstrom } 19770399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ShadowFrame* shadow_frame = GetCurrentShadowFrame(); 19780399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (shadow_frame != NULL) { 1979ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = shadow_frame->GetMethod(); 1980ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa size_t num_regs = shadow_frame->NumberOfVRegs(); 1981ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa if (m->IsNative() || shadow_frame->HasReferenceArray()) { 1982ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa // SIRT for JNI or References for interpreter. 1983ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa for (size_t reg = 0; reg < num_regs; ++reg) { 19842dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* ref = shadow_frame->GetVRegReference(reg); 1985423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (ref != nullptr) { 1986423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier mirror::Object* new_ref = visitor_(ref, reg, this); 1987423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (new_ref != ref) { 1988423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier shadow_frame->SetVRegReference(reg, new_ref); 1989423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier } 1990ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 1991ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 1992ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } else { 1993ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa // Java method. 1994ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa // Portable path use DexGcMap and store in Method.native_gc_map_. 1995ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa const uint8_t* gc_map = m->GetNativeGcMap(); 1996ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa CHECK(gc_map != NULL) << PrettyMethod(m); 19978171fc34bf74ed0df02385787d916bc13eb7f160Vladimir Marko verifier::DexPcToReferenceMap dex_gc_map(gc_map); 1998ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa uint32_t dex_pc = GetDexPc(); 1999ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa const uint8_t* reg_bitmap = dex_gc_map.FindBitMap(dex_pc); 2000ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa DCHECK(reg_bitmap != NULL); 2001ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa num_regs = std::min(dex_gc_map.RegWidth() * 8, num_regs); 2002ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa for (size_t reg = 0; reg < num_regs; ++reg) { 2003ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa if (TestBitmap(reg, reg_bitmap)) { 20042dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* ref = shadow_frame->GetVRegReference(reg); 2005423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (ref != nullptr) { 2006423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier mirror::Object* new_ref = visitor_(ref, reg, this); 2007423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (new_ref != ref) { 2008423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier shadow_frame->SetVRegReference(reg, new_ref); 2009423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier } 2010ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 2011ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 2012ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 2013ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 20140399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } else { 2015ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = GetMethod(); 20160399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Process register map (which native and runtime methods don't have) 2017640495bd1aebcd0b429d59f62b57d0c984b2d8c6Ian Rogers if (!m->IsNative() && !m->IsRuntimeMethod() && !m->IsProxyMethod()) { 20180c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const uint8_t* native_gc_map = m->GetNativeGcMap(); 20190c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers CHECK(native_gc_map != NULL) << PrettyMethod(m); 20200c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers mh_.ChangeMethod(m); 20210c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const DexFile::CodeItem* code_item = mh_.GetCodeItem(); 20227934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom DCHECK(code_item != NULL) << PrettyMethod(m); // Can't be NULL or how would we compile its instructions? 20230c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers NativePcOffsetToReferenceMap map(native_gc_map); 20240399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers size_t num_regs = std::min(map.RegWidth() * 8, 20250399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers static_cast<size_t>(code_item->registers_size_)); 20260c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers if (num_regs > 0) { 20270c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const uint8_t* reg_bitmap = map.FindBitMap(GetNativePcOffset()); 20280c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers DCHECK(reg_bitmap != NULL); 20291809a72a66d245ae598582d658b93a24ac3bf01eIan Rogers const VmapTable vmap_table(m->GetVmapTable()); 20300c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t core_spills = m->GetCoreSpillMask(); 20310c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t fp_spills = m->GetFpSpillMask(); 20320c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers size_t frame_size = m->GetFrameSizeInBytes(); 20330c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // For all dex registers in the bitmap 2034ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod** cur_quick_frame = GetCurrentQuickFrame(); 20350c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers DCHECK(cur_quick_frame != NULL); 20360c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers for (size_t reg = 0; reg < num_regs; ++reg) { 20370c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // Does this register hold a reference? 20380c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers if (TestBitmap(reg, reg_bitmap)) { 20390c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t vmap_offset; 20401809a72a66d245ae598582d658b93a24ac3bf01eIan Rogers if (vmap_table.IsInContext(reg, kReferenceVReg, &vmap_offset)) { 2041423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier int vmap_reg = vmap_table.ComputeRegister(core_spills, vmap_offset, kReferenceVReg); 2042423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier mirror::Object* ref = reinterpret_cast<mirror::Object*>(GetGPR(vmap_reg)); 2043423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (ref != nullptr) { 2044423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier mirror::Object* new_ref = visitor_(ref, reg, this); 2045423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (ref != new_ref) { 2046423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier SetGPR(vmap_reg, reinterpret_cast<uintptr_t>(new_ref)); 2047423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier } 2048423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier } 20490c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers } else { 2050423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier uint32_t* reg_addr = 2051423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier GetVRegAddr(cur_quick_frame, code_item, core_spills, fp_spills, frame_size, reg); 2052423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier mirror::Object* ref = reinterpret_cast<mirror::Object*>(*reg_addr); 2053423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (ref != nullptr) { 2054423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier mirror::Object* new_ref = visitor_(ref, reg, this); 2055423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (ref != new_ref) { 2056423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier *reg_addr = reinterpret_cast<uint32_t>(new_ref); 2057423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier } 2058423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier } 20590399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 2060d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 20614f894e385e8ac018f078be75fea0a45696626b15Shih-wei Liao } 2062d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 2063d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 2064d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 2065530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 2066d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 2067d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 2068d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers private: 20696f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier static bool TestBitmap(int reg, const uint8_t* reg_vector) { 2070d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers return ((reg_vector[reg / 8] >> (reg % 8)) & 0x01) != 0; 2071d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 2072d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 20736f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier // Visitor for when we visit a root. 207440e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogers const RootVisitor& visitor_; 20756f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 20760c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // A method helper we keep around to avoid dex file/cache re-computations. 20770c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers MethodHelper mh_; 2078d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers}; 2079d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 20806f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartierclass RootCallbackVisitor { 20816f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier public: 20820cd7ec2dcd8d7ba30bf3ca420b40dac52849876cBrian Carlstrom RootCallbackVisitor(RootVisitor* visitor, void* arg) : visitor_(visitor), arg_(arg) {} 20836f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 2084423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier mirror::Object* operator()(mirror::Object* obj, size_t, const StackVisitor*) const { 2085423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier return visitor_(obj, arg_); 20866f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier } 20876f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 20886f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier private: 20892dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers RootVisitor* visitor_; 20906f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier void* arg_; 20916f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier}; 20926f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 20936f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartierclass VerifyCallbackVisitor { 20946f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier public: 20952dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers VerifyCallbackVisitor(VerifyRootVisitor* visitor, void* arg) 20966f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier : visitor_(visitor), 20976f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier arg_(arg) { 20986f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier } 20996f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21002dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers void operator()(const mirror::Object* obj, size_t vreg, const StackVisitor* visitor) const { 210140e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogers visitor_(obj, arg_, vreg, visitor); 21026f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier } 21036f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21046f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier private: 21052dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers VerifyRootVisitor* const visitor_; 210640e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogers void* const arg_; 21076f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier}; 21086f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 2109590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartiervoid Thread::SetClassLoaderOverride(mirror::ClassLoader* class_loader_override) { 2110590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier if (kIsDebugBuild) { 2111590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier Runtime::Current()->GetHeap()->VerifyObject(class_loader_override); 2112590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier } 2113590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier class_loader_override_ = class_loader_override; 2114590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier} 2115590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier 21162dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersvoid Thread::VisitRoots(RootVisitor* visitor, void* arg) { 2117423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (opeer_ != nullptr) { 2118423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier opeer_ = visitor(opeer_, arg); 2119cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers } 2120423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (exception_ != nullptr) { 21215f51d4b80058236759fea1d932470a57f348c199Mathieu Chartier exception_ = down_cast<mirror::Throwable*>(visitor(exception_, arg)); 2122d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 212362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers throw_location_.VisitRoots(visitor, arg); 2124423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (class_loader_override_ != nullptr) { 21255f51d4b80058236759fea1d932470a57f348c199Mathieu Chartier class_loader_override_ = down_cast<mirror::ClassLoader*>(visitor(class_loader_override_, arg)); 212640381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom } 2127410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes jni_env_->locals.VisitRoots(visitor, arg); 2128410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes jni_env_->monitors.VisitRoots(visitor, arg); 21298dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao 21308dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao SirtVisitRoots(visitor, arg); 21318dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao 2132d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers // Visit roots on this thread's stack 21330399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers Context* context = GetLongJumpContext(); 21346f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier RootCallbackVisitor visitorToCallback(visitor, arg); 21357a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers ReferenceMapVisitor<RootCallbackVisitor> mapper(this, context, visitorToCallback); 21360399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers mapper.WalkStack(); 21370399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ReleaseLongJumpContext(context); 213862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 2139423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier for (instrumentation::InstrumentationStackFrame& frame : *GetInstrumentationStack()) { 2140423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (frame.this_object_ != nullptr) { 2141423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier frame.this_object_ = visitor(frame.this_object_, arg); 214262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 2143423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier DCHECK(frame.method_ != nullptr); 21445f51d4b80058236759fea1d932470a57f348c199Mathieu Chartier frame.method_ = down_cast<mirror::ArtMethod*>(visitor(frame.method_, arg)); 214562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 2146410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes} 2147410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes 2148423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartierstatic mirror::Object* VerifyRoot(mirror::Object* root, void* arg) { 2149423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier DCHECK(root != nullptr); 2150423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier DCHECK(arg != nullptr); 2151423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier reinterpret_cast<gc::Heap*>(arg)->VerifyObject(root); 2152423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier return root; 2153250455229aa0cc07bbd18174efe510bd52631a99jeffhao} 2154250455229aa0cc07bbd18174efe510bd52631a99jeffhao 215504d7aa92bc5548bc4d272b9480614f06248194ccIan Rogersvoid Thread::VerifyStackImpl() { 2156e66ac79b90a12b01b9d67ee9f7f586e638e67fabjeffhao UniquePtr<Context> context(Context::Create()); 2157423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier RootCallbackVisitor visitorToCallback(VerifyRoot, Runtime::Current()->GetHeap()); 215804d7aa92bc5548bc4d272b9480614f06248194ccIan Rogers ReferenceMapVisitor<RootCallbackVisitor> mapper(this, context.get(), visitorToCallback); 21590399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers mapper.WalkStack(); 2160250455229aa0cc07bbd18174efe510bd52631a99jeffhao} 2161250455229aa0cc07bbd18174efe510bd52631a99jeffhao 216200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers// Set the stack end to that to be used during a stack overflow 216300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::SetStackEndForStackOverflow() { 21647571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom // During stack overflow we allow use of the full stack. 216500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (stack_end_ == stack_begin_) { 21667571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom // However, we seem to have already extended to use the full stack. 21677571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom LOG(ERROR) << "Need to increase kStackOverflowReservedBytes (currently " 21687571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom << kStackOverflowReservedBytes << ")?"; 21697571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom DumpStack(LOG(ERROR)); 21707571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom LOG(FATAL) << "Recursive stack overflow."; 217100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 217200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 217300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers stack_end_ = stack_begin_; 217400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 217500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 2176330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughesstd::ostream& operator<<(std::ostream& os, const Thread& thread) { 217700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers thread.ShortDump(os); 2178330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes return os; 2179330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes} 2180330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes 21818daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes} // namespace art 2182