thread.cc revision 1f5393447b9f45be7918042d9ee7b521376de866
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 17578bbdc684db8ed68e9fedbc678669d27fa68b6eBrian Carlstrom#include "thread.h" 18b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 198d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes#include <dynamic_annotations.h> 20b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers#include <pthread.h> 212acf36d8cfeb5ddb293904148aa70f25ef6d8845Elliott Hughes#include <signal.h> 22dbf05b722af99ba2fd2f4c4fc7eb6c3e9880e5d1Brian Carlstrom#include <sys/resource.h> 23dbf05b722af99ba2fd2f4c4fc7eb6c3e9880e5d1Brian Carlstrom#include <sys/time.h> 24a09576416788b916095739e43a16917e7948f3a4Elliott Hughes 25b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro#include <algorithm> 26dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes#include <bitset> 27eb4f614f2eb53b92ebd416fa418f550861655887Elliott Hughes#include <cerrno> 28a09576416788b916095739e43a16917e7948f3a4Elliott Hughes#include <iostream> 29b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro#include <list> 30b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 31a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes#include "class_linker.h" 32df143242f4beaad4cc9fbabebfc033b68c40964eBrian Carlstrom#include "class_loader.h" 33474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers#include "cutils/atomic.h" 34474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers#include "cutils/atomic-inline.h" 3546e251bf7200cc06f5a9a82ee2030e650f5e1443Elliott Hughes#include "debugger.h" 360c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers#include "gc_map.h" 37408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers#include "heap.h" 38c5f7c91ab89055cffb573fff7e06dbdd860bccedElliott Hughes#include "jni_internal.h" 398e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes#include "monitor.h" 4081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers#include "mutex.h" 4157b86d47b66322693a070185fadfb43cb9c12eabIan Rogers#include "oat/runtime/context.h" 42a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes#include "object.h" 436d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers#include "object_utils.h" 449a6bae896a2f003d7216603bf29771d105c10ca4Jesse Wilson#include "reflection.h" 45578bbdc684db8ed68e9fedbc678669d27fa68b6eBrian Carlstrom#include "runtime.h" 465433072f589b61413e042eddf76e8190a048f71dbuzbee#include "runtime_support.h" 4700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers#include "scoped_thread_state_change.h" 4846e251bf7200cc06f5a9a82ee2030e650f5e1443Elliott Hughes#include "ScopedLocalRef.h" 491f5393447b9f45be7918042d9ee7b521376de866Ian Rogers#include "sirt_ref.h" 5030fab40ee5a07af6b8c3b6b0e9438071695a57f4Ian Rogers#include "space.h" 5168e76526e98432625464022cb26f66b9ef6f5af4Elliott Hughes#include "stack.h" 5268e76526e98432625464022cb26f66b9ef6f5af4Elliott Hughes#include "stack_indirect_reference_table.h" 538daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes#include "thread_list.h" 54a09576416788b916095739e43a16917e7948f3a4Elliott Hughes#include "utils.h" 55eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes#include "well_known_classes.h" 56b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 57b557353b22c728eecbd1c68593b482622c7782a8Carl Shapironamespace art { 58b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 59b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiropthread_key_t Thread::pthread_key_self_; 6000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan RogersConditionVariable* Thread::resume_cond_; 61b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 627dc5166ea740359d381097a7ab382c1dd404055fElliott Hughesstatic const char* kThreadNameDuringStartup = "<native thread without managed peer>"; 637dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes 645d76c435082332ef79a22962386fa92a0870e378Ian Rogersvoid Thread::InitCardTable() { 65b3bd5f07884f5a1f2b84224363b1372d7c28d447Elliott Hughes card_table_ = Runtime::Current()->GetHeap()->GetCardTable()->GetBiasedBegin(); 665d76c435082332ef79a22962386fa92a0870e378Ian Rogers} 675d76c435082332ef79a22962386fa92a0870e378Ian Rogers 6899250ba6a2cc72b8894dffa77c1fca5570087e3cElliott Hughes#if !defined(__APPLE__) 693ea0f42467790809fcfc9fc861605d465808090fElliott Hughesstatic void UnimplementedEntryPoint() { 703ea0f42467790809fcfc9fc861605d465808090fElliott Hughes UNIMPLEMENTED(FATAL); 713ea0f42467790809fcfc9fc861605d465808090fElliott Hughes} 7299250ba6a2cc72b8894dffa77c1fca5570087e3cElliott Hughes#endif 733ea0f42467790809fcfc9fc861605d465808090fElliott Hughes 743ea4ec5629613013ad9b0d7a69abdb94491ac46fbuzbeevoid Thread::InitFunctionPointers() { 7599250ba6a2cc72b8894dffa77c1fca5570087e3cElliott Hughes#if !defined(__APPLE__) // The Mac GCC is too old to accept this code. 763ea0f42467790809fcfc9fc861605d465808090fElliott Hughes // Insert a placeholder so we can easily tell if we call an unimplemented entry point. 773ea0f42467790809fcfc9fc861605d465808090fElliott Hughes uintptr_t* begin = reinterpret_cast<uintptr_t*>(&entrypoints_); 783ea0f42467790809fcfc9fc861605d465808090fElliott Hughes uintptr_t* end = reinterpret_cast<uintptr_t*>(reinterpret_cast<uint8_t*>(begin) + sizeof(entrypoints_)); 793ea0f42467790809fcfc9fc861605d465808090fElliott Hughes for (uintptr_t* it = begin; it != end; ++it) { 803ea0f42467790809fcfc9fc861605d465808090fElliott Hughes *it = reinterpret_cast<uintptr_t>(UnimplementedEntryPoint); 813ea0f42467790809fcfc9fc861605d465808090fElliott Hughes } 8299250ba6a2cc72b8894dffa77c1fca5570087e3cElliott Hughes#endif 8357b86d47b66322693a070185fadfb43cb9c12eabIan Rogers InitEntryPoints(&entrypoints_); 84c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes} 85c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes 86c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughesvoid Thread::SetDebuggerUpdatesEnabled(bool enabled) { 87c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes LOG(INFO) << "Turning debugger updates " << (enabled ? "on" : "off") << " for " << *this; 88776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers#if !defined(ART_USE_LLVM_COMPILER) 8957b86d47b66322693a070185fadfb43cb9c12eabIan Rogers ChangeDebuggerEntryPoint(&entrypoints_, enabled); 90776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers#else 91776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers UNIMPLEMENTED(FATAL); 92776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers#endif 933ea4ec5629613013ad9b0d7a69abdb94491ac46fbuzbee} 943ea4ec5629613013ad9b0d7a69abdb94491ac46fbuzbee 95caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstromvoid Thread::InitTid() { 96caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom tid_ = ::art::GetTid(); 97caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom} 98caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom 99caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstromvoid Thread::InitAfterFork() { 1008029cbe626a467b344ff84d86170d757aa12ecd4Elliott Hughes // One thread (us) survived the fork, but we have a new tid so we need to 1018029cbe626a467b344ff84d86170d757aa12ecd4Elliott Hughes // update the value stashed in this Thread*. 102caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom InitTid(); 103caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom} 104caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom 10578128a63b2615744760b7f8ab83df9764a5d4a95Brian Carlstromvoid* Thread::CreateCallback(void* arg) { 10693e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes Thread* self = reinterpret_cast<Thread*>(arg); 107120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime* runtime = Runtime::Current(); 108120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (runtime == NULL) { 109120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << "Thread attaching to non-existent runtime: " << *self; 110120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers return NULL; 111120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 112120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers { 113120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers MutexLock mu(*Locks::runtime_shutdown_lock_); 114120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Check that if we got here we cannot be shutting down (as shutdown should never have started 115120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // while threads are being born). 116120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers CHECK(!runtime->IsShuttingDown()); 117120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers self->Init(runtime->GetThreadList(), runtime->GetJavaVM()); 118120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime::Current()->EndThreadBirth(); 119120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 12047179f76e3f03fe3eb21dfb081d50733ca316371Elliott Hughes { 12100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(self); 122365c10235438607541fa2259a5fec48061b90bd8Ian Rogers { 1231f5393447b9f45be7918042d9ee7b521376de866Ian Rogers SirtRef<String> thread_name(self, self->GetThreadName(soa)); 124365c10235438607541fa2259a5fec48061b90bd8Ian Rogers self->SetThreadName(thread_name->ToModifiedUtf8().c_str()); 125365c10235438607541fa2259a5fec48061b90bd8Ian Rogers } 126365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Dbg::PostThreadStart(self); 12793e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 128365c10235438607541fa2259a5fec48061b90bd8Ian Rogers // Invoke the 'run' method of our java.lang.Thread. 129365c10235438607541fa2259a5fec48061b90bd8Ian Rogers CHECK(self->peer_ != NULL); 130dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier Object* receiver = soa.Decode<Object*>(self->peer_); 131365c10235438607541fa2259a5fec48061b90bd8Ian Rogers jmethodID mid = WellKnownClasses::java_lang_Thread_run; 13266f19258f9728d4ffe026074d8fd429d639802faMathieu Chartier AbstractMethod* m = receiver->GetClass()->FindVirtualMethodForVirtualOrInterface(soa.DecodeMethod(mid)); 133365c10235438607541fa2259a5fec48061b90bd8Ian Rogers m->Invoke(self, receiver, NULL, NULL); 134365c10235438607541fa2259a5fec48061b90bd8Ian Rogers } 13500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Detach and delete self. 13600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Runtime::Current()->GetThreadList()->Unregister(self); 13793e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 138b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro return NULL; 139b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro} 140b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 14100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan RogersThread* Thread::FromManagedThread(const ScopedObjectAccessUnchecked& soa, Object* thread_peer) { 14200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Field* f = soa.DecodeField(WellKnownClasses::java_lang_Thread_vmData); 14300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Thread* result = reinterpret_cast<Thread*>(static_cast<uintptr_t>(f->GetInt(thread_peer))); 14400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Sanity check that if we have a result it is either suspended or we hold the thread_list_lock_ 14500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // to stop it from going away. 14681d425b0b232962441616f8b14f73620bffef5e5Ian Rogers if (kIsDebugBuild) { 14781d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(soa.Self(), *Locks::thread_suspend_count_lock_); 14881d425b0b232962441616f8b14f73620bffef5e5Ian Rogers if (result != NULL && !result->IsSuspended()) { 14981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers Locks::thread_list_lock_->AssertHeld(soa.Self()); 15081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers } 15100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 15200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return result; 153761928d24e4e7ed7776b52243eaf9095ad35f448Elliott Hughes} 154761928d24e4e7ed7776b52243eaf9095ad35f448Elliott Hughes 15500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan RogersThread* Thread::FromManagedThread(const ScopedObjectAccessUnchecked& soa, jobject java_thread) { 15600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return FromManagedThread(soa, soa.Decode<Object*>(java_thread)); 15701158d7a57c8321370667a6045220237d16e0da8Elliott Hughes} 15801158d7a57c8321370667a6045220237d16e0da8Elliott Hughes 159ab7b9dcbfc4264a0bc4889c3e463ff88a67f6a30Elliott Hughesstatic size_t FixStackSize(size_t stack_size) { 1607502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // A stack size of zero means "use the default". 161d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes if (stack_size == 0) { 162d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes stack_size = Runtime::Current()->GetDefaultStackSize(); 163d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 16461e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 1656414a97a3c6dc101ae8ebc9480114d0c327e8e8dBrian Carlstrom // Dalvik used the bionic pthread default stack size for native threads, 1666414a97a3c6dc101ae8ebc9480114d0c327e8e8dBrian Carlstrom // so include that here to support apps that expect large native stacks. 1676414a97a3c6dc101ae8ebc9480114d0c327e8e8dBrian Carlstrom stack_size += 1 * MB; 1686414a97a3c6dc101ae8ebc9480114d0c327e8e8dBrian Carlstrom 1697502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // It's not possible to request a stack smaller than the system-defined PTHREAD_STACK_MIN. 1707502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes if (stack_size < PTHREAD_STACK_MIN) { 1717502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes stack_size = PTHREAD_STACK_MIN; 1727502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes } 1737502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 1747502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // It's likely that callers are trying to ensure they have at least a certain amount of 1757502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // stack space, so we should add our reserved space on top of what they requested, rather 1767502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // than implicitly take it away from them. 1777502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes stack_size += Thread::kStackOverflowReservedBytes; 1787502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 1797502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // Some systems require the stack size to be a multiple of the system page size, so round up. 1807502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes stack_size = RoundUp(stack_size, kPageSize); 1817502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 1827502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes return stack_size; 1837502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes} 1847502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 185d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughesstatic void SigAltStack(stack_t* new_stack, stack_t* old_stack) { 186d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes if (sigaltstack(new_stack, old_stack) == -1) { 187d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes PLOG(FATAL) << "sigaltstack failed"; 188d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes } 189d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes} 190d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes 191d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughesstatic void SetUpAlternateSignalStack() { 192d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes // Create and set an alternate signal stack. 193d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes stack_t ss; 194d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes ss.ss_sp = new uint8_t[SIGSTKSZ]; 195d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes ss.ss_size = SIGSTKSZ; 196d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes ss.ss_flags = 0; 197d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes CHECK(ss.ss_sp != NULL); 198d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes SigAltStack(&ss, NULL); 199d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes 200d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes // Double-check that it worked. 201d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes ss.ss_sp = NULL; 202d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes SigAltStack(NULL, &ss); 203d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes VLOG(threads) << "Alternate signal stack is " << PrettySize(ss.ss_size) << " at " << ss.ss_sp; 204d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes} 205d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes 206d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughesstatic void TearDownAlternateSignalStack() { 207d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes // Get the pointer so we can free the memory. 208d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes stack_t ss; 209d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes SigAltStack(NULL, &ss); 210d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes uint8_t* allocated_signal_stack = reinterpret_cast<uint8_t*>(ss.ss_sp); 211d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes 212d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes // Tell the kernel to stop using it. 213d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes ss.ss_sp = NULL; 214d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes ss.ss_flags = SS_DISABLE; 2154c5231d2cd83536584f7f1063d0afffa124fcec4Elliott Hughes ss.ss_size = SIGSTKSZ; // Avoid ENOMEM failure with Mac OS' buggy libc. 216d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes SigAltStack(&ss, NULL); 217d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes 218d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes // Free it. 219d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes delete[] allocated_signal_stack; 220d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes} 221d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes 222120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogersvoid Thread::CreateNativeThread(JNIEnv* env, jobject java_peer, size_t stack_size, bool is_daemon) { 223dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier CHECK(java_peer != NULL); 224120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self = static_cast<JNIEnvExt*>(env)->self; 225120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime* runtime = Runtime::Current(); 226dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier 227120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Atomically start the birth of the thread ensuring the runtime isn't shutting down. 228120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers bool thread_start_during_shutdown = false; 229365c10235438607541fa2259a5fec48061b90bd8Ian Rogers { 230120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers MutexLock mu(self, *Locks::runtime_shutdown_lock_); 231120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (runtime->IsShuttingDown()) { 232120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers thread_start_during_shutdown = true; 233120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } else { 234120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers runtime->StartThreadBirth(); 235120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 23600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 237120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (thread_start_during_shutdown) { 238120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedLocalRef<jclass> error_class(env, env->FindClass("java/lang/InternalError")); 239120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers env->ThrowNew(error_class.get(), "Thread starting during runtime shutdown"); 240120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers return; 241120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 242120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 243120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* child_thread = new Thread(is_daemon); 244120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Use global JNI ref to hold peer live while child thread starts. 245120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers child_thread->peer_ = env->NewGlobalRef(java_peer); 246120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers stack_size = FixStackSize(stack_size); 247120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 248120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Thread.start is synchronized, so we know that vmData is 0, and know that we're not racing to 249120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // assign it. 250120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers env->SetIntField(java_peer, WellKnownClasses::java_lang_Thread_vmData, 251120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers reinterpret_cast<jint>(child_thread)); 25200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 25300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers pthread_t new_pthread; 25400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers pthread_attr_t attr; 25500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_PTHREAD_CALL(pthread_attr_init, (&attr), "new thread"); 25600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_PTHREAD_CALL(pthread_attr_setdetachstate, (&attr, PTHREAD_CREATE_DETACHED), "PTHREAD_CREATE_DETACHED"); 25700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_PTHREAD_CALL(pthread_attr_setstacksize, (&attr, stack_size), stack_size); 258120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers int pthread_create_result = pthread_create(&new_pthread, &attr, Thread::CreateCallback, child_thread); 25900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_PTHREAD_CALL(pthread_attr_destroy, (&attr), "new thread"); 26000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 261120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (pthread_create_result != 0) { 26200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // pthread_create(3) failed, so clean up. 2639efc3e03982f042c3ce67cc2c64dbe0f0986119bBrian Carlstrom { 264120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers MutexLock mu(self, *Locks::runtime_shutdown_lock_); 265120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers runtime->EndThreadBirth(); 266120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 267120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Manually delete the global reference since Thread::Init will not have been run. 268120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers env->DeleteGlobalRef(child_thread->peer_); 269120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers child_thread->peer_ = NULL; 270120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers delete child_thread; 271120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers child_thread = NULL; 272120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // TODO: remove from thread group? 273120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers env->SetIntField(java_peer, WellKnownClasses::java_lang_Thread_vmData, 0); 274120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers { 2759efc3e03982f042c3ce67cc2c64dbe0f0986119bBrian Carlstrom std::string msg(StringPrintf("pthread_create (%s stack) failed: %s", 2769efc3e03982f042c3ce67cc2c64dbe0f0986119bBrian Carlstrom PrettySize(stack_size).c_str(), strerror(pthread_create_result))); 277120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedObjectAccess soa(env); 278120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers soa.Self()->ThrowOutOfMemoryError(msg.c_str()); 2799efc3e03982f042c3ce67cc2c64dbe0f0986119bBrian Carlstrom } 280365c10235438607541fa2259a5fec48061b90bd8Ian Rogers } 28193e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes} 28261e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 283120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogersvoid Thread::Init(ThreadList* thread_list, JavaVMExt* java_vm) { 284462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // This function does all the initialization that must be run by the native thread it applies to. 285462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // (When we create a new thread from managed code, we allocate the Thread* in Thread::Create so 286462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // we can handshake with the corresponding native thread when it's ready.) Check this native 287462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // thread hasn't been through here already... 288cac6cc72c3331257fa6437b36a131e5d551e2f3cElliott Hughes CHECK(Thread::Current() == NULL); 289cac6cc72c3331257fa6437b36a131e5d551e2f3cElliott Hughes 290d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes SetUpAlternateSignalStack(); 29193e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes InitCpu(); 29293e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes InitFunctionPointers(); 29321d28f510eb590f52810c83f1f3f37fe5f4adf46Shih-wei Liao#ifdef ART_USE_GREENLAND_COMPILER 29421d28f510eb590f52810c83f1f3f37fe5f4adf46Shih-wei Liao InitRuntimeEntryPoints(&runtime_entry_points_); 29521d28f510eb590f52810c83f1f3f37fe5f4adf46Shih-wei Liao#endif 2965d76c435082332ef79a22962386fa92a0870e378Ian Rogers InitCardTable(); 29701ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers InitTid(); 29861e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 299120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Set pthread_self_ ahead of pthread_setspecific, that makes Thread::Current function, this 300120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // avoids pthread_self_ ever being invalid when discovered from Thread::Current(). 3010d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes pthread_self_ = pthread_self(); 3026a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes CHECK_PTHREAD_CALL(pthread_setspecific, (Thread::pthread_key_self_, this), "attach self"); 303120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers DCHECK_EQ(Thread::Current(), this); 304a5780dad67556297c8ca5f2608c53b193e6c4514Elliott Hughes 305120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers thin_lock_id_ = thread_list->AllocThreadId(); 306120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers InitStackHwm(); 3075fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 308120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_ = new JNIEnvExt(this, java_vm); 309120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers thread_list->Register(this); 31093e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes} 31193e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 312365c10235438607541fa2259a5fec48061b90bd8Ian RogersThread* Thread::Attach(const char* thread_name, bool as_daemon, jobject thread_group) { 313120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self; 314120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime* runtime = Runtime::Current(); 315120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (runtime == NULL) { 316120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << "Thread attaching to non-existent runtime: " << thread_name; 317120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers return NULL; 318120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 319120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers { 320120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers MutexLock mu(NULL, *Locks::runtime_shutdown_lock_); 321120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (runtime->IsShuttingDown()) { 322120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << "Thread attaching while runtime is shutting down: " << thread_name; 323120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers return NULL; 324120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } else { 325120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime::Current()->StartThreadBirth(); 326120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers self = new Thread(as_daemon); 327120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers self->Init(runtime->GetThreadList(), runtime->GetJavaVM()); 328120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime::Current()->EndThreadBirth(); 329120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 330120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 3315fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 332dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier CHECK_NE(self->GetState(), kRunnable); 333dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier self->SetState(kNative); 334726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes 335cac6cc72c3331257fa6437b36a131e5d551e2f3cElliott Hughes // If we're the main thread, ClassLinker won't be created until after we're attached, 336cac6cc72c3331257fa6437b36a131e5d551e2f3cElliott Hughes // so that thread needs a two-stage attach. Regular threads don't need this hack. 337d9c67be7c116875d96b31e640ad47d587b205605Elliott Hughes // In the compiler, all threads need this hack, because no-one's going to be getting 338d9c67be7c116875d96b31e640ad47d587b205605Elliott Hughes // a native peer! 339d9c67be7c116875d96b31e640ad47d587b205605Elliott Hughes if (self->thin_lock_id_ != ThreadList::kMainId && !Runtime::Current()->IsCompiler()) { 340462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes self->CreatePeer(thread_name, as_daemon, thread_group); 34106e3ad4a651c2c58dba5e865cd06d2f98462bf1dElliott Hughes } else { 34206e3ad4a651c2c58dba5e865cd06d2f98462bf1dElliott Hughes // These aren't necessary, but they improve diagnostics for unit tests & command-line tools. 34322869a9026a08b544eca4cefd67386d347e30d2cElliott Hughes if (thread_name != NULL) { 34422869a9026a08b544eca4cefd67386d347e30d2cElliott Hughes self->name_->assign(thread_name); 34522869a9026a08b544eca4cefd67386d347e30d2cElliott Hughes ::art::SetThreadName(thread_name); 34622869a9026a08b544eca4cefd67386d347e30d2cElliott Hughes } 34736e0a955e48e9357bff1eab783e493107ebfff62Ian Rogers } 348cac6cc72c3331257fa6437b36a131e5d551e2f3cElliott Hughes 3495fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes return self; 3505fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes} 3515fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 352365c10235438607541fa2259a5fec48061b90bd8Ian Rogersvoid Thread::CreatePeer(const char* name, bool as_daemon, jobject thread_group) { 353365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Runtime* runtime = Runtime::Current(); 354365c10235438607541fa2259a5fec48061b90bd8Ian Rogers CHECK(runtime->IsStarted()); 3555fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes JNIEnv* env = jni_env_; 3565fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 357462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes if (thread_group == NULL) { 358365c10235438607541fa2259a5fec48061b90bd8Ian Rogers thread_group = runtime->GetMainThreadGroup(); 359462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes } 360726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes ScopedLocalRef<jobject> thread_name(env, env->NewStringUTF(name)); 3618daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes jint thread_priority = GetNativePriority(); 3625fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes jboolean thread_is_daemon = as_daemon; 3635fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 364eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes ScopedLocalRef<jobject> peer(env, env->AllocObject(WellKnownClasses::java_lang_Thread)); 365dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier if (peer.get() == NULL) { 366dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier CHECK(IsExceptionPending()); 367dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier return; 3685d4bdc29737a693027daaf6ed3f0792368eb4baeIan Rogers } 369dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier peer_ = env->NewGlobalRef(peer.get()); 370eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes env->CallNonvirtualVoidMethod(peer.get(), 371eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes WellKnownClasses::java_lang_Thread, 372eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes WellKnownClasses::java_lang_Thread_init, 373365c10235438607541fa2259a5fec48061b90bd8Ian Rogers thread_group, thread_name.get(), thread_priority, thread_is_daemon); 37400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers AssertNoPendingException(); 375d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 376120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self = this; 377120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers DCHECK_EQ(self, Thread::Current()); 378120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->SetIntField(peer.get(), WellKnownClasses::java_lang_Thread_vmData, 379120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers reinterpret_cast<jint>(self)); 380120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 381120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedObjectAccess soa(self); 3821f5393447b9f45be7918042d9ee7b521376de866Ian Rogers SirtRef<String> peer_thread_name(soa.Self(), GetThreadName(soa)); 38300fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom if (peer_thread_name.get() == NULL) { 384120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Object* native_peer = soa.Decode<Object*>(peer.get()); 38500fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom // The Thread constructor should have set the Thread.name to a 38600fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom // non-null value. However, because we can run without code 38700fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom // available (in the compiler, in tests), we manually assign the 38800fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom // fields the constructor should have set. 389dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier soa.DecodeField(WellKnownClasses::java_lang_Thread_daemon)-> 390dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier SetBoolean(native_peer, thread_is_daemon); 391dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier soa.DecodeField(WellKnownClasses::java_lang_Thread_group)-> 392dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier SetObject(native_peer, soa.Decode<Object*>(thread_group)); 393dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier soa.DecodeField(WellKnownClasses::java_lang_Thread_name)-> 394dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier SetObject(native_peer, soa.Decode<Object*>(thread_name.get())); 395dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier soa.DecodeField(WellKnownClasses::java_lang_Thread_priority)-> 396dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier SetInt(native_peer, thread_priority); 39700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers peer_thread_name.reset(GetThreadName(soa)); 39800fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom } 399225f5a1df25241babd16cdba54056b9e2cd166a2Elliott Hughes // 'thread_name' may have been null, so don't trust 'peer_thread_name' to be non-null. 40000fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom if (peer_thread_name.get() != NULL) { 401899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes SetThreadName(peer_thread_name->ToModifiedUtf8().c_str()); 40200fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom } 40361e019d291583029c01b61b93bea750f2b663c37Carl Shapiro} 40461e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 405899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughesvoid Thread::SetThreadName(const char* name) { 406899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes name_->assign(name); 407899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes ::art::SetThreadName(name); 408899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes Dbg::DdmSendThreadNotification(this, CHUNK_TYPE("THNM")); 409899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes} 410899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes 411be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughesvoid Thread::InitStackHwm() { 412e188419b971936086a188843378375f5ced13724Elliott Hughes void* stack_base; 413e188419b971936086a188843378375f5ced13724Elliott Hughes size_t stack_size; 414120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers GetThreadStack(pthread_self_, stack_base, stack_size); 41536ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 41636ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // TODO: include this in the thread dumps; potentially useful in SIGQUIT output? 417e188419b971936086a188843378375f5ced13724Elliott Hughes VLOG(threads) << StringPrintf("Native stack is at %p (%s)", stack_base, PrettySize(stack_size).c_str()); 418e188419b971936086a188843378375f5ced13724Elliott Hughes 419e188419b971936086a188843378375f5ced13724Elliott Hughes stack_begin_ = reinterpret_cast<byte*>(stack_base); 420e188419b971936086a188843378375f5ced13724Elliott Hughes stack_size_ = stack_size; 42136ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 422932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers if (stack_size_ <= kStackOverflowReservedBytes) { 4233d30d9b09c16542d41554aad9f46ec9109ba5cb5Elliott Hughes LOG(FATAL) << "Attempt to attach a thread with a too-small stack (" << stack_size_ << " bytes)"; 424be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 425449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes 426e188419b971936086a188843378375f5ced13724Elliott Hughes // TODO: move this into the Linux GetThreadStack implementation. 427e188419b971936086a188843378375f5ced13724Elliott Hughes#if !defined(__APPLE__) 42836ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // If we're the main thread, check whether we were run with an unlimited stack. In that case, 42936ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // glibc will have reported a 2GB stack for our 32-bit process, and our stack overflow detection 43036ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // will be broken because we'll die long before we get close to 2GB. 431120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers bool is_main_thread = (::art::GetTid() == getpid()); 432120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (is_main_thread) { 43336ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes rlimit stack_limit; 43436ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes if (getrlimit(RLIMIT_STACK, &stack_limit) == -1) { 43536ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes PLOG(FATAL) << "getrlimit(RLIMIT_STACK) failed"; 43636ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes } 43736ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes if (stack_limit.rlim_cur == RLIM_INFINITY) { 43836ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // Find the default stack size for new threads... 43936ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes pthread_attr_t default_attributes; 44036ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes size_t default_stack_size; 44136ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_init, (&default_attributes), "default stack size query"); 44236ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_getstacksize, (&default_attributes, &default_stack_size), 44336ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes "default stack size query"); 44436ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_destroy, (&default_attributes), "default stack size query"); 44536ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 44636ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // ...and use that as our limit. 44736ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes size_t old_stack_size = stack_size_; 44836ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes stack_size_ = default_stack_size; 44936ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes stack_begin_ += (old_stack_size - stack_size_); 450faf4ba01738400f418b45c4323aa9e8e6b6ba2a0Elliott Hughes VLOG(threads) << "Limiting unlimited stack (reported as " << PrettySize(old_stack_size) << ")" 451faf4ba01738400f418b45c4323aa9e8e6b6ba2a0Elliott Hughes << " to " << PrettySize(stack_size_) 452faf4ba01738400f418b45c4323aa9e8e6b6ba2a0Elliott Hughes << " with base " << reinterpret_cast<void*>(stack_begin_); 45336ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes } 45436ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes } 455e188419b971936086a188843378375f5ced13724Elliott Hughes#endif 45636ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 457932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // Set stack_end_ to the bottom of the stack saving space of stack overflows 458932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers ResetDefaultStackEnd(); 459449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes 460449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes // Sanity check. 461449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes int stack_variable; 462398f64b5805246765b699839b439e18c0dfbf2eeElliott Hughes CHECK_GT(&stack_variable, reinterpret_cast<void*>(stack_end_)); 463be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes} 464be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 46500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::ShortDump(std::ostream& os) const { 46600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers os << "Thread["; 46700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (GetThinLockId() != 0) { 46800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // If we're in kStarting, we won't have a thin lock id or tid yet. 46900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers os << GetThinLockId() 47000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << ",tid=" << GetTid() << ','; 471e0918556e7551de638870dcad3f2023f94f85a50Elliott Hughes } 472474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers os << GetState() 47300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << ",Thread*=" << this 47400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << ",peer=" << peer_ 47500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << ",\"" << *name_ << "\"" 47600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << "]"; 477d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes} 478d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 47900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::Dump(std::ostream& os) const { 48000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DumpState(os); 48100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DumpStack(os); 48200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 48300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 48400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan RogersString* Thread::GetThreadName(const ScopedObjectAccessUnchecked& soa) const { 48500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Field* f = soa.DecodeField(WellKnownClasses::java_lang_Thread_name); 486dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier Object* native_peer = soa.Decode<Object*>(peer_); 487dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier return (peer_ != NULL) ? reinterpret_cast<String*>(f->GetObject(native_peer)) : NULL; 488fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes} 489fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes 490ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughesvoid Thread::GetThreadName(std::string& name) const { 491ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes name.assign(*name_); 492ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes} 493ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes 494474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogersvoid Thread::AtomicSetFlag(ThreadFlag flag) { 49530e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers android_atomic_or(flag, &state_and_flags_.as_int); 496474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers} 497474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers 498474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogersvoid Thread::AtomicClearFlag(ThreadFlag flag) { 49930e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers android_atomic_and(-1 ^ flag, &state_and_flags_.as_int); 500474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers} 501474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers 502474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian RogersThreadState Thread::SetState(ThreadState new_state) { 503474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers // Cannot use this code to change into Runnable as changing to Runnable should fail if 504474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers // old_state_and_flags.suspend_request is true. 505474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers DCHECK_NE(new_state, kRunnable); 506474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers DCHECK_EQ(this, Thread::Current()); 50730e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers union StateAndFlags old_state_and_flags = state_and_flags_; 50830e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers state_and_flags_.as_struct.state = new_state; 50930e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers return static_cast<ThreadState>(old_state_and_flags.as_struct.state); 510474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers} 511474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers 51201ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers// Attempt to rectify locks so that we dump thread list with required locks before exiting. 51301ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogersstatic void UnsafeLogFatalForSuspendCount(Thread* self, Thread* thread) NO_THREAD_SAFETY_ANALYSIS { 514120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << *thread << " suspend count already zero."; 51501ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::thread_suspend_count_lock_->Unlock(self); 51601ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::mutator_lock_->IsSharedHeld(self)) { 51701ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::mutator_lock_->SharedTryLock(self); 51801ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::mutator_lock_->IsSharedHeld(self)) { 51901ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers LOG(WARNING) << "Dumping thread list without holding mutator_lock_"; 52001ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 52101ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 52201ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::thread_list_lock_->IsExclusiveHeld(self)) { 52301ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::thread_list_lock_->TryLock(self); 52401ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::thread_list_lock_->IsExclusiveHeld(self)) { 52501ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers LOG(WARNING) << "Dumping thread list without holding thread_list_lock_"; 52601ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 52701ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 52801ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers std::ostringstream ss; 52901ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Runtime::Current()->GetThreadList()->DumpLocked(ss); 530120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(FATAL) << ss.str(); 53101ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers} 53201ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers 53301ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogersvoid Thread::ModifySuspendCount(Thread* self, int delta, bool for_debugger) { 53400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DCHECK(delta == -1 || delta == +1 || delta == -debug_suspend_count_) 53500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << delta << " " << debug_suspend_count_ << " " << this; 53600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DCHECK_GE(suspend_count_, debug_suspend_count_) << this; 53701ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::thread_suspend_count_lock_->AssertHeld(self); 53800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 53901ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (UNLIKELY(delta < 0 && suspend_count_ <= 0)) { 54001ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers UnsafeLogFatalForSuspendCount(self, this); 54100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return; 54200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 54301ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers 54400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers suspend_count_ += delta; 54500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (for_debugger) { 54600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers debug_suspend_count_ += delta; 54700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 54801ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers 549474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers if (suspend_count_ == 0) { 550474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers AtomicClearFlag(kSuspendRequest); 551474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers } else { 552474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers AtomicSetFlag(kSuspendRequest); 553474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers } 55400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 55500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 55600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::FullSuspendCheck() { 55700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers VLOG(threads) << this << " self-suspending"; 55800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Make thread appear suspended to other threads, release mutator_lock_. 55900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers TransitionFromRunnableToSuspended(kSuspended); 56000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Transition back to runnable noting requests to suspend, re-acquire share on mutator_lock_. 56100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers TransitionFromSuspendedToRunnable(); 56200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers VLOG(threads) << this << " self-reviving"; 56300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 56400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 56500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::TransitionFromRunnableToSuspended(ThreadState new_state) { 56600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers AssertThreadSuspensionIsAllowable(); 567474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers DCHECK_NE(new_state, kRunnable); 568474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers DCHECK_EQ(this, Thread::Current()); 569c747cffa950b8398cb8844d47e2253214c855750Ian Rogers // Change to non-runnable state, thereby appearing suspended to the system. 570474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers DCHECK_EQ(GetState(), kRunnable); 57130e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers state_and_flags_.as_struct.state = new_state; 57200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Release share on mutator_lock_. 57381d425b0b232962441616f8b14f73620bffef5e5Ian Rogers Locks::mutator_lock_->SharedUnlock(this); 57400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 57500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 57600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan RogersThreadState Thread::TransitionFromSuspendedToRunnable() { 57700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers bool done = false; 57801ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers union StateAndFlags old_state_and_flags = state_and_flags_; 57901ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers int16_t old_state = old_state_and_flags.as_struct.state; 58001ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers DCHECK_NE(static_cast<ThreadState>(old_state), kRunnable); 58100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers do { 58281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers Locks::mutator_lock_->AssertNotHeld(this); // Otherwise we starve GC.. 58301ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers old_state_and_flags = state_and_flags_; 58401ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers DCHECK_EQ(old_state_and_flags.as_struct.state, old_state); 58501ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if ((old_state_and_flags.as_struct.flags & kSuspendRequest) != 0) { 58600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Wait while our suspend count is non-zero. 58781d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(this, *Locks::thread_suspend_count_lock_); 58801ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers old_state_and_flags = state_and_flags_; 58901ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers DCHECK_EQ(old_state_and_flags.as_struct.state, old_state); 59001ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers while ((old_state_and_flags.as_struct.flags & kSuspendRequest) != 0) { 59100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Re-check when Thread::resume_cond_ is notified. 59281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers Thread::resume_cond_->Wait(this, *Locks::thread_suspend_count_lock_); 59301ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers old_state_and_flags = state_and_flags_; 59401ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers DCHECK_EQ(old_state_and_flags.as_struct.state, old_state); 59500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 596474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers DCHECK_EQ(GetSuspendCount(), 0); 59700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 59800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Re-acquire shared mutator_lock_ access. 59981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers Locks::mutator_lock_->SharedLock(this); 600474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers // Atomically change from suspended to runnable if no suspend request pending. 60101ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers old_state_and_flags = state_and_flags_; 60201ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers DCHECK_EQ(old_state_and_flags.as_struct.state, old_state); 60301ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if ((old_state_and_flags.as_struct.flags & kSuspendRequest) == 0) { 60401ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers union StateAndFlags new_state_and_flags = old_state_and_flags; 60501ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers new_state_and_flags.as_struct.state = kRunnable; 60601ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers done = android_atomic_cmpxchg(old_state_and_flags.as_int, new_state_and_flags.as_int, 60781d425b0b232962441616f8b14f73620bffef5e5Ian Rogers &state_and_flags_.as_int) 608474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers == 0; 609474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers } 610474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers if (!done) { 611474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers // Failed to transition to Runnable. Release shared mutator_lock_ access and try again. 61281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers Locks::mutator_lock_->SharedUnlock(this); 61300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 61400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } while (!done); 61501ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers return static_cast<ThreadState>(old_state); 61600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 61700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 61800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan RogersThread* Thread::SuspendForDebugger(jobject peer, bool request_suspension, bool* timeout) { 61900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers static const useconds_t kTimeoutUs = 30 * 1000000; // 30s. 62000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers useconds_t total_delay_us = 0; 62100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers useconds_t delay_us = 0; 62200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers bool did_suspend_request = false; 62300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers *timeout = false; 62400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers while (true) { 62500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Thread* thread; 62600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers { 62700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(Thread::Current()); 62881d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(soa.Self(), *Locks::thread_list_lock_); 62900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers thread = Thread::FromManagedThread(soa, peer); 63000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (thread == NULL) { 63100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(WARNING) << "No such thread for suspend: " << peer; 63200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return NULL; 63300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 63400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers { 63581d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(soa.Self(), *Locks::thread_suspend_count_lock_); 63600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (request_suspension) { 63701ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers thread->ModifySuspendCount(soa.Self(), +1, true /* for_debugger */); 63800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers request_suspension = false; 63900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers did_suspend_request = true; 64000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 64100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // IsSuspended on the current thread will fail as the current thread is changed into 64200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Runnable above. As the suspend count is now raised if this is the current thread 64300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // it will self suspend on transition to Runnable, making it hard to work with. Its simpler 64400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // to just explicitly handle the current thread in the callers to this code. 64500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_NE(thread, soa.Self()) << "Attempt to suspend for debugger the current thread"; 64600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // If thread is suspended (perhaps it was already not Runnable but didn't have a suspend 64700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // count, or else we've waited and it has self suspended) or is the current thread, we're 64800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // done. 64900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (thread->IsSuspended()) { 65000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return thread; 65100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 65200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (total_delay_us >= kTimeoutUs) { 65300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(ERROR) << "Thread suspension timed out: " << peer; 65400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (did_suspend_request) { 65501ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers thread->ModifySuspendCount(soa.Self(), -1, true /* for_debugger */); 65600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 65700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers *timeout = true; 65800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return NULL; 65900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 66000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 66100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Release locks and come out of runnable state. 66200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 66300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers for (int i = kMaxMutexLevel; i >= 0; --i) { 66481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers BaseMutex* held_mutex = Thread::Current()->GetHeldMutex(static_cast<LockLevel>(i)); 66500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (held_mutex != NULL) { 66600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(FATAL) << "Holding " << held_mutex->GetName() 66700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << " while sleeping for thread suspension"; 66800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 66900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 67000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers { 67100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers useconds_t new_delay_us = delay_us * 2; 67200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_GE(new_delay_us, delay_us); 67300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (new_delay_us < 500000) { // Don't allow sleeping to be more than 0.5s. 67400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers delay_us = new_delay_us; 67500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 67600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 67700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (delay_us == 0) { 67800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers sched_yield(); 67900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Default to 1 milliseconds (note that this gets multiplied by 2 before the first sleep). 68000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers delay_us = 500; 68100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } else { 68200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers usleep(delay_us); 68300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers total_delay_us += delay_us; 68400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 68500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 68600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 68700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 688abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughesvoid Thread::DumpState(std::ostream& os, const Thread* thread, pid_t tid) { 689d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes std::string group_name; 690d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes int priority; 691d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes bool is_daemon = false; 69281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers Thread* self = Thread::Current(); 693d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 694abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (thread != NULL && thread->peer_ != NULL) { 69581d425b0b232962441616f8b14f73620bffef5e5Ian Rogers ScopedObjectAccess soa(self); 696dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier Object* native_peer = soa.Decode<Object*>(thread->peer_); 697dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier priority = soa.DecodeField(WellKnownClasses::java_lang_Thread_priority)->GetInt(native_peer); 698dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier is_daemon = soa.DecodeField(WellKnownClasses::java_lang_Thread_daemon)->GetBoolean(native_peer); 699d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 700120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Object* thread_group = 701120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers soa.DecodeField(WellKnownClasses::java_lang_Thread_group)->GetObject(native_peer); 702120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 703d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes if (thread_group != NULL) { 70400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Field* group_name_field = soa.DecodeField(WellKnownClasses::java_lang_ThreadGroup_name); 705af8d15a3267343dec135cc6df1db740c0a5c7b52Elliott Hughes String* group_name_string = reinterpret_cast<String*>(group_name_field->GetObject(thread_group)); 706d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes group_name = (group_name_string != NULL) ? group_name_string->ToModifiedUtf8() : "<null>"; 707d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 708d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } else { 709d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes priority = GetNativePriority(); 710dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes } 711d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 712abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes std::string scheduler_group_name(GetSchedulerGroupName(tid)); 7131bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughes if (scheduler_group_name.empty()) { 7141bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughes scheduler_group_name = "default"; 715d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 716d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 717abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (thread != NULL) { 718abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << '"' << *thread->name_ << '"'; 719abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (is_daemon) { 720abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " daemon"; 721abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } 72281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(self, *Locks::thread_suspend_count_lock_); 723abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " prio=" << priority 724abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " tid=" << thread->GetThinLockId() 725abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " " << thread->GetState() << "\n"; 726abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } else { 727289be85116aaf7c48413858b5d0448868b4e61f3Elliott Hughes os << '"' << ::art::GetThreadName(tid) << '"' 728abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " prio=" << priority 729abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " (not attached)\n"; 730abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } 731abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes 732abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (thread != NULL) { 73381d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(self, *Locks::thread_suspend_count_lock_); 734abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " | group=\"" << group_name << "\"" 735abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " sCount=" << thread->suspend_count_ 736abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " dsCount=" << thread->debug_suspend_count_ 737abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " obj=" << reinterpret_cast<void*>(thread->peer_) 738abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " self=" << reinterpret_cast<const void*>(thread) << "\n"; 739d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 7400d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes 741abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " | sysTid=" << tid 742abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " nice=" << getpriority(PRIO_PROCESS, tid) 7430d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes << " cgrp=" << scheduler_group_name; 7440d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes if (thread != NULL) { 7450d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes int policy; 7460d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes sched_param sp; 7470d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes CHECK_PTHREAD_CALL(pthread_getschedparam, (thread->pthread_self_, &policy, &sp), __FUNCTION__); 7480d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes os << " sched=" << policy << "/" << sp.sched_priority 7490d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes << " handle=" << reinterpret_cast<void*>(thread->pthread_self_); 7500d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes } 7510d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes os << "\n"; 752d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 753d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes // Grab the scheduler stats for this thread. 754d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes std::string scheduler_stats; 755abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (ReadFileToString(StringPrintf("/proc/self/task/%d/schedstat", tid), &scheduler_stats)) { 756d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes scheduler_stats.resize(scheduler_stats.size() - 1); // Lose the trailing '\n'. 757d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } else { 758d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes scheduler_stats = "0 0 0"; 759d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 760d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 761ba0b9c55adce3f533845ab1b25c552589e5b4118Elliott Hughes char native_thread_state = '?'; 762d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int utime = 0; 763d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int stime = 0; 764d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int task_cpu = 0; 765ba0b9c55adce3f533845ab1b25c552589e5b4118Elliott Hughes GetTaskStats(tid, native_thread_state, utime, stime, task_cpu); 766d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 767ba0b9c55adce3f533845ab1b25c552589e5b4118Elliott Hughes os << " | state=" << native_thread_state 768ba0b9c55adce3f533845ab1b25c552589e5b4118Elliott Hughes << " schedstat=( " << scheduler_stats << " )" 769d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes << " utm=" << utime 770d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes << " stm=" << stime 771abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " core=" << task_cpu 772abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " HZ=" << sysconf(_SC_CLK_TCK) << "\n"; 773abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (thread != NULL) { 774abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " | stack=" << reinterpret_cast<void*>(thread->stack_begin_) << "-" << reinterpret_cast<void*>(thread->stack_end_) 775abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " stackSize=" << PrettySize(thread->stack_size_) << "\n"; 776abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } 777abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes} 778abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes 779abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughesvoid Thread::DumpState(std::ostream& os) const { 780abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes Thread::DumpState(os, this, GetTid()); 781a09576416788b916095739e43a16917e7948f3a4Elliott Hughes} 782a09576416788b916095739e43a16917e7948f3a4Elliott Hughes 7830399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersstruct StackDumpVisitor : public StackVisitor { 78408fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes StackDumpVisitor(std::ostream& os, const Thread* thread, Context* context, bool can_allocate) 785b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 78608fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes : StackVisitor(thread->GetManagedStack(), thread->GetTraceStack(), context), 78708fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes os(os), thread(thread), can_allocate(can_allocate), 78808fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes last_method(NULL), last_line_number(0), repetition_count(0), frame_count(0) { 789d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 790d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 791bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers virtual ~StackDumpVisitor() { 792e85d2e924953f1a13b7152edba1c13853e6f3a86Elliott Hughes if (frame_count == 0) { 793e85d2e924953f1a13b7152edba1c13853e6f3a86Elliott Hughes os << " (no managed stack frames)\n"; 794e85d2e924953f1a13b7152edba1c13853e6f3a86Elliott Hughes } 795d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 796d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 797b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 79866f19258f9728d4ffe026074d8fd429d639802faMathieu Chartier AbstractMethod* m = GetMethod(); 7990399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (m->IsRuntimeMethod()) { 800530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 8019086572fa809d1a19d886b467e4da3ce42016982Ian Rogers } 80228ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers const int kMaxRepetition = 3; 803d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes Class* c = m->GetDeclaringClass(); 8048e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 805b861dc0077342d5a1d2dd9cade3f6990620778ecIan Rogers const DexCache* dex_cache = c->GetDexCache(); 806b861dc0077342d5a1d2dd9cade3f6990620778ecIan Rogers int line_number = -1; 807b861dc0077342d5a1d2dd9cade3f6990620778ecIan Rogers if (dex_cache != NULL) { // be tolerant of bad input 808b861dc0077342d5a1d2dd9cade3f6990620778ecIan Rogers const DexFile& dex_file = class_linker->FindDexFile(dex_cache); 8090399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers line_number = dex_file.GetLineNumFromPC(m, GetDexPc()); 810b861dc0077342d5a1d2dd9cade3f6990620778ecIan Rogers } 81128ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (line_number == last_line_number && last_method == m) { 81228ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers repetition_count++; 813d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } else { 81428ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (repetition_count >= kMaxRepetition) { 81528ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << " ... repeated " << (repetition_count - kMaxRepetition) << " times\n"; 81628ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 81728ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers repetition_count = 0; 81828ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers last_line_number = line_number; 81928ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers last_method = m; 82028ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 82128ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (repetition_count < kMaxRepetition) { 82228ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << " at " << PrettyMethod(m, false); 82328ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (m->IsNative()) { 82428ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << "(Native method)"; 82528ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } else { 8266d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers mh.ChangeMethod(m); 8276d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers const char* source_file(mh.GetDeclaringClassSourceFile()); 8286d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers os << "(" << (source_file != NULL ? source_file : "unavailable") 82928ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers << ":" << line_number << ")"; 83028ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 83128ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << "\n"; 83208fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes if (frame_count == 0) { 83308fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes Monitor::DescribeWait(os, thread); 83408fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes } 83508fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes if (can_allocate) { 83608fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes Monitor::DescribeLocks(os, this); 83708fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes } 838d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 8398e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes 84008fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes ++frame_count; 841530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 842d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 84308fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes std::ostream& os; 84408fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes const Thread* thread; 84508fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes bool can_allocate; 8466d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers MethodHelper mh; 84766f19258f9728d4ffe026074d8fd429d639802faMathieu Chartier AbstractMethod* last_method; 84828ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers int last_line_number; 84928ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers int repetition_count; 8508e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes int frame_count; 851d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes}; 852d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 853d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughesvoid Thread::DumpStack(std::ostream& os) const { 854ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes // If we're currently in native code, dump that stack before dumping the managed stack. 855dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier if (GetState() == kNative) { 85646e251bf7200cc06f5a9a82ee2030e650f5e1443Elliott Hughes DumpKernelStack(os, GetTid(), " kernel: ", false); 85746e251bf7200cc06f5a9a82ee2030e650f5e1443Elliott Hughes DumpNativeStack(os, GetTid(), " native: ", false); 858ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes } 85908fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes UniquePtr<Context> context(Context::Create()); 86008fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes StackDumpVisitor dumper(os, this, context.get(), !throwing_OutOfMemoryError_); 8610399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers dumper.WalkStack(); 862e27955ca3ca960928d4dbd6cb79711fce06950b3Elliott Hughes} 863e27955ca3ca960928d4dbd6cb79711fce06950b3Elliott Hughes 864be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughesvoid Thread::ThreadExitCallback(void* arg) { 865be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes Thread* self = reinterpret_cast<Thread*>(arg); 8666a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes if (self->thread_exit_check_count_ == 0) { 8676a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes LOG(WARNING) << "Native thread exiting without having called DetachCurrentThread (maybe it's going to use a pthread_key_create destructor?): " << *self; 8686a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes CHECK_PTHREAD_CALL(pthread_setspecific, (Thread::pthread_key_self_, self), "reattach self"); 8696a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes self->thread_exit_check_count_ = 1; 8706a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes } else { 8716a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes LOG(FATAL) << "Native thread exited without calling DetachCurrentThread: " << *self; 8726a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes } 873b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro} 874b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 875be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughesvoid Thread::Startup() { 87600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers { 877b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers MutexLock mu(*Locks::thread_suspend_count_lock_); // Keep GCC happy. 87800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers resume_cond_ = new ConditionVariable("Thread resumption condition variable"); 87900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 88000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 881b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro // Allocate a TLS slot. 8828d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes CHECK_PTHREAD_CALL(pthread_key_create, (&Thread::pthread_key_self_, Thread::ThreadExitCallback), "self key"); 883b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 884b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro // Double-check the TLS slot allocation. 885b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro if (pthread_getspecific(pthread_key_self_) != NULL) { 8863d30d9b09c16542d41554aad9f46ec9109ba5cb5Elliott Hughes LOG(FATAL) << "Newly-created pthread TLS slot is not NULL"; 887b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro } 888038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes} 889038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes 890038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughesvoid Thread::FinishStartup() { 891365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Runtime* runtime = Runtime::Current(); 892365c10235438607541fa2259a5fec48061b90bd8Ian Rogers CHECK(runtime->IsStarted()); 893b82b6878fb000d4731063b1bf15c39ff7c50b61fBrian Carlstrom 89401158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Finish attaching the main thread. 89500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(Thread::Current()); 896365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Thread::Current()->CreatePeer("main", false, runtime->GetMainThreadGroup()); 8979a6bae896a2f003d7216603bf29771d105c10ca4Jesse Wilson 898af8d15a3267343dec135cc6df1db740c0a5c7b52Elliott Hughes Runtime::Current()->GetClassLinker()->RunRootClinits(); 899b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro} 900b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 901c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughesvoid Thread::Shutdown() { 9028d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes CHECK_PTHREAD_CALL(pthread_key_delete, (Thread::pthread_key_self_), "self key"); 903c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes} 904c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes 90552673ffae0025d86f4023735581f19ebcc477487Ian RogersThread::Thread(bool daemon) 9060399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers : suspend_count_(0), 9070399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers card_table_(NULL), 9080399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers exception_(NULL), 9090399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers stack_end_(NULL), 9100399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers managed_stack_(), 9110399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers jni_env_(NULL), 9120399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers self_(NULL), 91347179f76e3f03fe3eb21dfb081d50733ca316371Elliott Hughes peer_(NULL), 9140399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers stack_begin_(NULL), 9150399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers stack_size_(0), 9160399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers thin_lock_id_(0), 9170399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers tid_(0), 918e62934d85fbc2d935afdad57eeade39ecbd7440aElliott Hughes wait_mutex_(new Mutex("a thread wait mutex")), 919e62934d85fbc2d935afdad57eeade39ecbd7440aElliott Hughes wait_cond_(new ConditionVariable("a thread wait condition variable")), 9208daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes wait_monitor_(NULL), 9218daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes interrupted_(false), 922dc33ad5db2dc6ed9b76d5219888626a604debbe1Elliott Hughes wait_next_(NULL), 9238e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes monitor_enter_object_(NULL), 924dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes top_sirt_(NULL), 925dc33ad5db2dc6ed9b76d5219888626a604debbe1Elliott Hughes runtime_(NULL), 92685d1545e985ac689db4bad7849880e843707c862Elliott Hughes class_loader_override_(NULL), 927418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes long_jump_context_(NULL), 928726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes throwing_OutOfMemoryError_(false), 9290399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers debug_suspend_count_(0), 930e343b76af81a005ef64f5e75a555389fd9147dabjeffhao debug_invoke_req_(new DebugInvokeReq), 931899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes trace_stack_(new std::vector<TraceStackFrame>), 9320399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers name_(new std::string(kThreadNameDuringStartup)), 93352673ffae0025d86f4023735581f19ebcc477487Ian Rogers daemon_(daemon), 93400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers pthread_self_(0), 93552673ffae0025d86f4023735581f19ebcc477487Ian Rogers no_thread_suspension_(0), 9366a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes last_no_thread_suspension_cause_(NULL), 9376a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes thread_exit_check_count_(0) { 938f5a7a476e7ea63e094ff0f011dccc170607e6f6bElliott Hughes CHECK_EQ((sizeof(Thread) % 4), 0U) << sizeof(Thread); 93930e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers state_and_flags_.as_struct.flags = 0; 94030e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers state_and_flags_.as_struct.state = kNative; 941ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes memset(&held_mutexes_[0], 0, sizeof(held_mutexes_)); 942dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes} 943dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes 9447dc5166ea740359d381097a7ab382c1dd404055fElliott Hughesbool Thread::IsStillStarting() const { 9457dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // You might think you can check whether the state is kStarting, but for much of thread startup, 9467dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // the thread might also be in kVmWait. 9477dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // You might think you can check whether the peer is NULL, but the peer is actually created and 9487dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // assigned fairly early on, and needs to be. 9497dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // It turns out that the last thing to change is the thread name; that's a good proxy for "has 9507dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // this thread _ever_ entered kRunnable". 9517dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes return (*name_ == kThreadNameDuringStartup); 9527dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes} 9537dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes 95400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::AssertNoPendingException() const { 95500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (UNLIKELY(IsExceptionPending())) { 95600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(Thread::Current()); 95700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Throwable* exception = GetException(); 95800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(FATAL) << "No pending exception expected: " << exception->Dump(); 95900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 96000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 96100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 96200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersstatic void MonitorExitVisitor(const Object* object, void* arg) NO_THREAD_SAFETY_ANALYSIS { 96300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Thread* self = reinterpret_cast<Thread*>(arg); 96402b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes Object* entered_monitor = const_cast<Object*>(object); 96500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (self->HoldsLock(entered_monitor)) { 96600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(WARNING) << "Calling MonitorExit on object " 96700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << object << " (" << PrettyTypeOf(object) << ")" 96800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << " left locked by native thread " 96900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << *Thread::Current() << " which is detaching"; 97000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers entered_monitor->MonitorExit(self); 97100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 97202b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes} 97302b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 974c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughesvoid Thread::Destroy() { 975120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self = this; 976120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers DCHECK_EQ(self, Thread::Current()); 97702b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 97829f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes if (peer_ != NULL) { 979120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // We may need to call user-supplied managed code, do this before final clean-up. 980120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers HandleUncaughtExceptions(); 981120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers RemoveFromThreadGroup(); 982534da072d3db3beecbd74e5aa23d630d73695f2cElliott Hughes 98329f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes // this.vmData = 0; 984120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->SetIntField(peer_, WellKnownClasses::java_lang_Thread_vmData, 0); 98502b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 986120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers { 987120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedObjectAccess soa(self); 988120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Dbg::PostThreadDeath(self); 989120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 99002b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 99129f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes // Thread.join() is implemented as an Object.wait() on the Thread.lock 99229f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes // object. Signal anyone who is waiting. 993120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedLocalRef<jobject> lock(jni_env_, 994120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->GetObjectField(peer_, 995120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers WellKnownClasses::java_lang_Thread_lock)); 996038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes // (This conditional is only needed for tests, where Thread.lock won't have been set.) 997120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (lock.get() != NULL) { 998120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->MonitorEnter(lock.get()); 999120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->CallVoidMethod(lock.get(), WellKnownClasses::java_lang_Object_notify); 1000120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->MonitorExit(lock.get()); 10015f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 10025f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 1003120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 1004120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // On thread detach, all monitors entered with JNI MonitorEnter are automatically exited. 1005120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (jni_env_ != NULL) { 1006120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->monitors.VisitRoots(MonitorExitVisitor, self); 1007120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 1008c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes} 100902b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 1010c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott HughesThread::~Thread() { 1011dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier if (jni_env_ != NULL && peer_ != NULL) { 1012dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier // If pthread_create fails we don't have a jni env here. 1013dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier jni_env_->DeleteGlobalRef(peer_); 1014dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier } 1015dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier peer_ = NULL; 1016dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier 1017c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes delete jni_env_; 101802b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes jni_env_ = NULL; 101902b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 1020dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier CHECK_NE(GetState(), kRunnable); 1021dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier // We may be deleting a still born thread. 1022dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier SetStateUnsafe(kTerminated); 102385d1545e985ac689db4bad7849880e843707c862Elliott Hughes 102485d1545e985ac689db4bad7849880e843707c862Elliott Hughes delete wait_cond_; 102585d1545e985ac689db4bad7849880e843707c862Elliott Hughes delete wait_mutex_; 102685d1545e985ac689db4bad7849880e843707c862Elliott Hughes 1027776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers#if !defined(ART_USE_LLVM_COMPILER) 102885d1545e985ac689db4bad7849880e843707c862Elliott Hughes delete long_jump_context_; 1029776ac1fa61237db645adb4370a4aab888530caf4Ian Rogers#endif 1030475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes 1031475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes delete debug_invoke_req_; 1032e343b76af81a005ef64f5e75a555389fd9147dabjeffhao delete trace_stack_; 1033899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes delete name_; 1034d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes 1035d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes TearDownAlternateSignalStack(); 1036c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes} 1037c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes 1038120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogersvoid Thread::HandleUncaughtExceptions() { 1039accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes if (!IsExceptionPending()) { 1040accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes return; 1041accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes } 1042120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 1043accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Get and clear the exception. 1044120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedLocalRef<jthrowable> exception(jni_env_, jni_env_->ExceptionOccurred()); 1045120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->ExceptionClear(); 1046accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1047accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // If the thread has its own handler, use that. 1048120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedLocalRef<jobject> handler(jni_env_, 1049120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->GetObjectField(peer_, 1050120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers WellKnownClasses::java_lang_Thread_uncaughtHandler)); 1051120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (handler.get() == NULL) { 1052accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Otherwise use the thread group's default handler. 1053120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers handler.reset(jni_env_->GetObjectField(peer_, WellKnownClasses::java_lang_Thread_group)); 1054accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes } 1055accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1056accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Call the handler. 1057120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->CallVoidMethod(handler.get(), 1058120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers WellKnownClasses::java_lang_Thread$UncaughtExceptionHandler_uncaughtException, 1059120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers peer_, exception.get()); 1060accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1061accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // If the handler threw, clear that exception too. 1062120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->ExceptionClear(); 1063a215526d5c789cbef0f81a1f9aba22541a841ccaElliott Hughes} 1064a215526d5c789cbef0f81a1f9aba22541a841ccaElliott Hughes 1065120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogersvoid Thread::RemoveFromThreadGroup() { 10664514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom // this.group.removeThread(this); 10674514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom // group can be null if we're in the compiler or a test. 1068120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedLocalRef<jobject> group(jni_env_, 1069120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->GetObjectField(peer_, 1070120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers WellKnownClasses::java_lang_Thread_group)); 1071120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (group.get() != NULL) { 1072120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->CallVoidMethod(group.get(), WellKnownClasses::java_lang_ThreadGroup_removeThread, 1073120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers peer_); 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 1085408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogersbool Thread::SirtContains(jobject obj) { 1086408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers Object** sirt_entry = reinterpret_cast<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 10968dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liaovoid Thread::SirtVisitRoots(Heap::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++) { 110040381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom Object* object = cur->GetReference(j); 11015e73f9c8990819054f8e0a60061ee8beff1e024aBrian Carlstrom if (object != NULL) { 11025e73f9c8990819054f8e0a60061ee8beff1e024aBrian Carlstrom visitor(object, arg); 11035e73f9c8990819054f8e0a60061ee8beff1e024aBrian Carlstrom } 11048dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao } 11058dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao } 11068dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao} 11078dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao 1108408f79aeb676251ba35667a64e86c20638d7cb0bIan RogersObject* Thread::DecodeJObject(jobject obj) { 110981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers Locks::mutator_lock_->AssertSharedHeld(this); 1110408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers if (obj == NULL) { 1111408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers return NULL; 1112408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1113408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers IndirectRef ref = reinterpret_cast<IndirectRef>(obj); 1114408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers IndirectRefKind kind = GetIndirectRefKind(ref); 1115408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers Object* result; 1116408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers switch (kind) { 1117408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers case kLocal: 1118408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers { 111969f5bc6759f256a146eefd8a7141d39fcc3b0421Elliott Hughes IndirectReferenceTable& locals = jni_env_->locals; 1120cf4c6c41b0084dc4567ff709fb8ce9ebd72b26acElliott Hughes result = const_cast<Object*>(locals.Get(ref)); 1121408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers break; 1122408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1123408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers case kGlobal: 1124408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers { 1125408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers JavaVMExt* vm = Runtime::Current()->GetJavaVM(); 1126408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers IndirectReferenceTable& globals = vm->globals; 112781d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(this, vm->globals_lock); 1128cf4c6c41b0084dc4567ff709fb8ce9ebd72b26acElliott Hughes result = const_cast<Object*>(globals.Get(ref)); 1129408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers break; 1130408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1131408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers case kWeakGlobal: 1132408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers { 1133408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers JavaVMExt* vm = Runtime::Current()->GetJavaVM(); 1134408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers IndirectReferenceTable& weak_globals = vm->weak_globals; 113581d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(this, vm->weak_globals_lock); 1136cf4c6c41b0084dc4567ff709fb8ce9ebd72b26acElliott Hughes result = const_cast<Object*>(weak_globals.Get(ref)); 1137408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers if (result == kClearedJniWeakGlobal) { 1138408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // This is a special case where it's okay to return NULL. 1139408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers return NULL; 1140408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1141408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers break; 1142408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1143408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers case kSirtOrInvalid: 1144408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers default: 1145408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // TODO: make stack indirect reference table lookup more efficient 1146408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Check if this is a local reference in the SIRT 11470399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (SirtContains(obj)) { 11480cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers result = *reinterpret_cast<Object**>(obj); // Read from SIRT 1149c2dc62d1c9241dfe880a81698713c314b13aa63fElliott Hughes } else if (Runtime::Current()->GetJavaVM()->work_around_app_jni_bugs) { 1150408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Assume an invalid local reference is actually a direct pointer. 1151408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers result = reinterpret_cast<Object*>(obj); 1152408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } else { 1153a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes result = kInvalidIndirectRefObject; 1154408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1155408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1156408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers 1157408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers if (result == NULL) { 11583f6635a2c84d645002f651c312d53f8348646c1fElliott Hughes JniAbortF(NULL, "use of deleted %s %p", ToStr<IndirectRefKind>(kind).c_str(), obj); 1159a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes } else { 1160a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes if (result != kInvalidIndirectRefObject) { 1161b3bd5f07884f5a1f2b84224363b1372d7c28d447Elliott Hughes Runtime::Current()->GetHeap()->VerifyObject(result); 1162a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes } 1163408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1164408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers return result; 1165408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers} 1166408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers 116781d425b0b232962441616f8b14f73620bffef5e5Ian Rogers// Implements java.lang.Thread.interrupted. 116881d425b0b232962441616f8b14f73620bffef5e5Ian Rogersbool Thread::Interrupted() { 116981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(*wait_mutex_); 117081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers bool interrupted = interrupted_; 117181d425b0b232962441616f8b14f73620bffef5e5Ian Rogers interrupted_ = false; 117281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers return interrupted; 117381d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 117481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 117581d425b0b232962441616f8b14f73620bffef5e5Ian Rogers// Implements java.lang.Thread.isInterrupted. 117681d425b0b232962441616f8b14f73620bffef5e5Ian Rogersbool Thread::IsInterrupted() { 117781d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(*wait_mutex_); 117881d425b0b232962441616f8b14f73620bffef5e5Ian Rogers return interrupted_; 117981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 118081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 118181d425b0b232962441616f8b14f73620bffef5e5Ian Rogersvoid Thread::Interrupt() { 118281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(*wait_mutex_); 118381d425b0b232962441616f8b14f73620bffef5e5Ian Rogers if (interrupted_) { 118481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers return; 118581d425b0b232962441616f8b14f73620bffef5e5Ian Rogers } 118681d425b0b232962441616f8b14f73620bffef5e5Ian Rogers interrupted_ = true; 118781d425b0b232962441616f8b14f73620bffef5e5Ian Rogers NotifyLocked(); 118881d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 118981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 119081d425b0b232962441616f8b14f73620bffef5e5Ian Rogersvoid Thread::Notify() { 119181d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(*wait_mutex_); 119281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers NotifyLocked(); 119381d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 119481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 119581d425b0b232962441616f8b14f73620bffef5e5Ian Rogersvoid Thread::NotifyLocked() { 119681d425b0b232962441616f8b14f73620bffef5e5Ian Rogers if (wait_monitor_ != NULL) { 119781d425b0b232962441616f8b14f73620bffef5e5Ian Rogers wait_cond_->Signal(); 119881d425b0b232962441616f8b14f73620bffef5e5Ian Rogers } 119981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 120081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 12010399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass CountStackDepthVisitor : public StackVisitor { 12029b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao public: 12030399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers CountStackDepthVisitor(const ManagedStack* stack, 1204ca190666fb11820153f74274c495ba1f913d8a69Ian Rogers const std::vector<TraceStackFrame>* trace_stack) 1205b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 120608fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes : StackVisitor(stack, trace_stack, NULL), 120708fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes depth_(0), skip_depth_(0), skipping_(true) {} 1208d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 1209b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 121029f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes // We want to skip frames up to and including the exception's constructor. 12119086572fa809d1a19d886b467e4da3ce42016982Ian Rogers // Note we also skip the frame if it doesn't have a method (namely the callee 12129086572fa809d1a19d886b467e4da3ce42016982Ian Rogers // save frame) 121366f19258f9728d4ffe026074d8fd429d639802faMathieu Chartier AbstractMethod* m = GetMethod(); 12140399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (skipping_ && !m->IsRuntimeMethod() && 12150399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers !Throwable::GetJavaLangThrowable()->IsAssignableFrom(m->GetDeclaringClass())) { 121629f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes skipping_ = false; 121729f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 121829f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes if (!skipping_) { 12190399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (!m->IsRuntimeMethod()) { // Ignore runtime frames (in particular callee save). 12206b0870dfaaa2e69a900ad7ed88e4e1d3697445aaIan Rogers ++depth_; 12216b0870dfaaa2e69a900ad7ed88e4e1d3697445aaIan Rogers } 122229f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } else { 122329f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes ++skip_depth_; 122429f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 1225530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 12269b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 12279b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 12289b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao int GetDepth() const { 1229aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers return depth_; 12309b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 12319b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 123229f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes int GetSkipDepth() const { 123329f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes return skip_depth_; 123429f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 123529f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes 12369b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao private: 1237aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers uint32_t depth_; 123829f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes uint32_t skip_depth_; 123929f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes bool skipping_; 12409b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao}; 12419b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 12420399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass BuildInternalStackTraceVisitor : public StackVisitor { 12439b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao public: 12441f5393447b9f45be7918042d9ee7b521376de866Ian Rogers explicit BuildInternalStackTraceVisitor(Thread* self, const ManagedStack* stack, 12450399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers const std::vector<TraceStackFrame>* trace_stack, 1246ca190666fb11820153f74274c495ba1f913d8a69Ian Rogers int skip_depth) 12471f5393447b9f45be7918042d9ee7b521376de866Ian Rogers : StackVisitor(stack, trace_stack, NULL), self_(self), 124808fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes skip_depth_(skip_depth), count_(0), dex_pc_trace_(NULL), method_trace_(NULL) {} 1249283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers 12501f5393447b9f45be7918042d9ee7b521376de866Ian Rogers bool Init(int depth) 1251b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1252aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Allocate method trace with an extra slot that will hold the PC trace 12530399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers SirtRef<ObjectArray<Object> > 12541f5393447b9f45be7918042d9ee7b521376de866Ian Rogers method_trace(self_, 12551f5393447b9f45be7918042d9ee7b521376de866Ian Rogers Runtime::Current()->GetClassLinker()->AllocObjectArray<Object>(depth + 1)); 12560399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (method_trace.get() == NULL) { 1257283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers return false; 1258726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes } 12590399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers IntArray* dex_pc_trace = IntArray::Alloc(depth); 12600399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (dex_pc_trace == NULL) { 1261283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers return false; 1262726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes } 1263aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Save PC trace in last element of method trace, also places it into the 1264aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // object graph. 12650399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers method_trace->Set(depth, dex_pc_trace); 12660399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Set the Object*s and assert that no thread suspension is now possible. 126752673ffae0025d86f4023735581f19ebcc477487Ian Rogers const char* last_no_suspend_cause = 12681f5393447b9f45be7918042d9ee7b521376de866Ian Rogers self_->StartAssertNoThreadSuspension("Building internal stack trace"); 126952673ffae0025d86f4023735581f19ebcc477487Ian Rogers CHECK(last_no_suspend_cause == NULL) << last_no_suspend_cause; 12700399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers method_trace_ = method_trace.get(); 12710399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers dex_pc_trace_ = dex_pc_trace; 1272283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers return true; 12739b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 12749b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 12750399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers virtual ~BuildInternalStackTraceVisitor() { 127652673ffae0025d86f4023735581f19ebcc477487Ian Rogers if (method_trace_ != NULL) { 12771f5393447b9f45be7918042d9ee7b521376de866Ian Rogers self_->EndAssertNoThreadSuspension(NULL); 127852673ffae0025d86f4023735581f19ebcc477487Ian Rogers } 12790399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 12809b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 1281b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 12820399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (method_trace_ == NULL || dex_pc_trace_ == NULL) { 1283530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; // We're probably trying to fillInStackTrace for an OutOfMemoryError. 1284726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes } 128529f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes if (skip_depth_ > 0) { 128629f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes skip_depth_--; 1287530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 128829f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 128966f19258f9728d4ffe026074d8fd429d639802faMathieu Chartier AbstractMethod* m = GetMethod(); 12900399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (m->IsRuntimeMethod()) { 12910399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return true; // Ignore runtime frames (in particular callee save). 12926b0870dfaaa2e69a900ad7ed88e4e1d3697445aaIan Rogers } 12930399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers method_trace_->Set(count_, m); 12940399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers dex_pc_trace_->Set(count_, GetDexPc()); 1295aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers ++count_; 1296530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 12979b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 12989b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 12990399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ObjectArray<Object>* GetInternalStackTrace() const { 13000399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return method_trace_; 13019b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 13029b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 13039b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao private: 13041f5393447b9f45be7918042d9ee7b521376de866Ian Rogers Thread* const self_; 130529f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes // How many more frames to skip. 130629f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes int32_t skip_depth_; 13070399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Current position down stack trace. 1308aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers uint32_t count_; 13090399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Array of dex PC values. 13100399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers IntArray* dex_pc_trace_; 13110399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // An array of the methods on the stack, the last entry is a reference to the PC trace. 1312aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers ObjectArray<Object>* method_trace_; 13139b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao}; 13149b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 131500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersjobject Thread::CreateInternalStackTrace(const ScopedObjectAccess& soa) const { 1316aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Compute depth of stack 13170399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers CountStackDepthVisitor count_visitor(GetManagedStack(), GetTraceStack()); 13180399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers count_visitor.WalkStack(); 13199b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao int32_t depth = count_visitor.GetDepth(); 132029f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes int32_t skip_depth = count_visitor.GetSkipDepth(); 13214417536522fd2a9d8215d8672331984769c9520bShih-wei Liao 13221f5393447b9f45be7918042d9ee7b521376de866Ian Rogers // Build internal stack trace. 13231f5393447b9f45be7918042d9ee7b521376de866Ian Rogers BuildInternalStackTraceVisitor build_trace_visitor(soa.Self(), GetManagedStack(), GetTraceStack(), 13240399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers skip_depth); 13251f5393447b9f45be7918042d9ee7b521376de866Ian Rogers if (!build_trace_visitor.Init(depth)) { 13261f5393447b9f45be7918042d9ee7b521376de866Ian Rogers return NULL; // Allocation failed. 1327283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers } 13280399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers build_trace_visitor.WalkStack(); 132900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return soa.AddLocalReference<jobjectArray>(build_trace_visitor.GetInternalStackTrace()); 1330aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers} 1331aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 133201158d7a57c8321370667a6045220237d16e0da8Elliott HughesjobjectArray Thread::InternalStackTraceToStackTraceElementArray(JNIEnv* env, jobject internal, 133301158d7a57c8321370667a6045220237d16e0da8Elliott Hughes jobjectArray output_array, int* stack_depth) { 1334aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Transition into runnable state to work on Object*/Array* 133500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(env); 1336aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Decode the internal stack trace into the depth, method trace and PC trace 133700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ObjectArray<Object>* method_trace = soa.Decode<ObjectArray<Object>*>(internal); 13389074b99bfbd5419e340f138a018b673ce71f77e8Ian Rogers int32_t depth = method_trace->GetLength() - 1; 1339aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers IntArray* pc_trace = down_cast<IntArray*>(method_trace->Get(depth)); 1340aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 1341aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 1342aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 134301158d7a57c8321370667a6045220237d16e0da8Elliott Hughes jobjectArray result; 134401158d7a57c8321370667a6045220237d16e0da8Elliott Hughes ObjectArray<StackTraceElement>* java_traces; 134501158d7a57c8321370667a6045220237d16e0da8Elliott Hughes if (output_array != NULL) { 134601158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Reuse the array we were given. 134701158d7a57c8321370667a6045220237d16e0da8Elliott Hughes result = output_array; 134800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers java_traces = soa.Decode<ObjectArray<StackTraceElement>*>(output_array); 134901158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // ...adjusting the number of frames we'll write to not exceed the array length. 135001158d7a57c8321370667a6045220237d16e0da8Elliott Hughes depth = std::min(depth, java_traces->GetLength()); 135101158d7a57c8321370667a6045220237d16e0da8Elliott Hughes } else { 135201158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Create java_trace array and place in local reference table 135301158d7a57c8321370667a6045220237d16e0da8Elliott Hughes java_traces = class_linker->AllocStackTraceElementArray(depth); 135430646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes if (java_traces == NULL) { 135530646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes return NULL; 135630646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 135700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers result = soa.AddLocalReference<jobjectArray>(java_traces); 135801158d7a57c8321370667a6045220237d16e0da8Elliott Hughes } 135901158d7a57c8321370667a6045220237d16e0da8Elliott Hughes 136001158d7a57c8321370667a6045220237d16e0da8Elliott Hughes if (stack_depth != NULL) { 136101158d7a57c8321370667a6045220237d16e0da8Elliott Hughes *stack_depth = depth; 136201158d7a57c8321370667a6045220237d16e0da8Elliott Hughes } 136355df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao 13646d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers MethodHelper mh; 13659b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao for (int32_t i = 0; i < depth; ++i) { 1366aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Prepare parameters for StackTraceElement(String cls, String method, String file, int line) 136766f19258f9728d4ffe026074d8fd429d639802faMathieu Chartier AbstractMethod* method = down_cast<AbstractMethod*>(method_trace->Get(i)); 13686d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers mh.ChangeMethod(method); 13690399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers uint32_t dex_pc = pc_trace->Get(i); 13700399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers int32_t line_number = mh.GetLineNumFromDexPC(dex_pc); 1371aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Allocate element, potentially triggering GC 137240381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom // TODO: reuse class_name_object via Class::name_? 1373486013193c94b4321414c28ce9251911e14a0599Ian Rogers const char* descriptor = mh.GetDeclaringClassDescriptor(); 1374486013193c94b4321414c28ce9251911e14a0599Ian Rogers CHECK(descriptor != NULL); 1375486013193c94b4321414c28ce9251911e14a0599Ian Rogers std::string class_name(PrettyDescriptor(descriptor)); 13761f5393447b9f45be7918042d9ee7b521376de866Ian Rogers SirtRef<String> class_name_object(soa.Self(), 13771f5393447b9f45be7918042d9ee7b521376de866Ian Rogers String::AllocFromModifiedUtf8(class_name.c_str())); 137840381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom if (class_name_object.get() == NULL) { 137940381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom return NULL; 138040381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom } 1381486013193c94b4321414c28ce9251911e14a0599Ian Rogers const char* method_name = mh.GetName(); 1382486013193c94b4321414c28ce9251911e14a0599Ian Rogers CHECK(method_name != NULL); 13831f5393447b9f45be7918042d9ee7b521376de866Ian Rogers SirtRef<String> method_name_object(soa.Self(), String::AllocFromModifiedUtf8(method_name)); 13846d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers if (method_name_object.get() == NULL) { 13856d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers return NULL; 13866d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers } 1387486013193c94b4321414c28ce9251911e14a0599Ian Rogers const char* source_file = mh.GetDeclaringClassSourceFile(); 13881f5393447b9f45be7918042d9ee7b521376de866Ian Rogers SirtRef<String> source_name_object(soa.Self(), String::AllocFromModifiedUtf8(source_file)); 138940381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom StackTraceElement* obj = StackTraceElement::Alloc(class_name_object.get(), 13906d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers method_name_object.get(), 13916d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers source_name_object.get(), 139240381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom line_number); 139330646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes if (obj == NULL) { 139430646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes return NULL; 139530646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 1396aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers#ifdef MOVING_GARBAGE_COLLECTOR 1397aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Re-read after potential GC 139800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers java_traces = Decode<ObjectArray<Object>*>(soa.Env(), result); 139900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers method_trace = down_cast<ObjectArray<Object>*>(Decode<Object*>(soa.Env(), internal)); 1400aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers pc_trace = down_cast<IntArray*>(method_trace->Get(depth)); 1401aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers#endif 140255df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao java_traces->Set(i, obj); 140355df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao } 1404aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers return result; 140555df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao} 140655df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao 14075cb5ad27944efb08d4556b3c0d362302e37e832bElliott Hughesvoid Thread::ThrowNewExceptionF(const char* exception_class_descriptor, const char* fmt, ...) { 1408a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes va_list args; 1409a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes va_start(args, fmt); 14104a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes ThrowNewExceptionV(exception_class_descriptor, fmt, args); 1411a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes va_end(args); 14124a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes} 14134a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes 14144a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughesvoid Thread::ThrowNewExceptionV(const char* exception_class_descriptor, const char* fmt, va_list ap) { 14154a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes std::string msg; 14164a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes StringAppendV(&msg, fmt, ap); 14175cb5ad27944efb08d4556b3c0d362302e37e832bElliott Hughes ThrowNewException(exception_class_descriptor, msg.c_str()); 14185cb5ad27944efb08d4556b3c0d362302e37e832bElliott Hughes} 141937f7a40f6789bb287f287a9af00777af9d6428eeElliott Hughes 14205cb5ad27944efb08d4556b3c0d362302e37e832bElliott Hughesvoid Thread::ThrowNewException(const char* exception_class_descriptor, const char* msg) { 142100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers AssertNoPendingException(); // Callers should either clear or call ThrowNewWrappedException. 1422a4f94740f9d66b21f4bcd3a225c434aa29cfa323Elliott Hughes ThrowNewWrappedException(exception_class_descriptor, msg); 1423a4f94740f9d66b21f4bcd3a225c434aa29cfa323Elliott Hughes} 1424a4f94740f9d66b21f4bcd3a225c434aa29cfa323Elliott Hughes 1425a4f94740f9d66b21f4bcd3a225c434aa29cfa323Elliott Hughesvoid Thread::ThrowNewWrappedException(const char* exception_class_descriptor, const char* msg) { 1426e5b0dc83537bf915c6abe4efeae6e501daf75a27Elliott Hughes // Convert "Ljava/lang/Exception;" into JNI-style "java/lang/Exception". 14270cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers CHECK_EQ('L', exception_class_descriptor[0]); 1428e5b0dc83537bf915c6abe4efeae6e501daf75a27Elliott Hughes std::string descriptor(exception_class_descriptor + 1); 14290cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers CHECK_EQ(';', descriptor[descriptor.length() - 1]); 1430e5b0dc83537bf915c6abe4efeae6e501daf75a27Elliott Hughes descriptor.erase(descriptor.length() - 1); 1431e5b0dc83537bf915c6abe4efeae6e501daf75a27Elliott Hughes 1432e5b0dc83537bf915c6abe4efeae6e501daf75a27Elliott Hughes JNIEnv* env = GetJniEnv(); 1433a4f94740f9d66b21f4bcd3a225c434aa29cfa323Elliott Hughes jobject cause = env->ExceptionOccurred(); 1434a4f94740f9d66b21f4bcd3a225c434aa29cfa323Elliott Hughes env->ExceptionClear(); 1435a4f94740f9d66b21f4bcd3a225c434aa29cfa323Elliott Hughes 1436726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes ScopedLocalRef<jclass> exception_class(env, env->FindClass(descriptor.c_str())); 143730646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes if (exception_class.get() == NULL) { 143830646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes LOG(ERROR) << "Couldn't throw new " << descriptor << " because JNI FindClass failed: " 143930646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes << PrettyTypeOf(GetException()); 144030646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes CHECK(IsExceptionPending()); 144130646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes return; 144230646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 1443ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom if (!Runtime::Current()->IsStarted()) { 1444ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom // Something is trying to throw an exception without a started 1445ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom // runtime, which is the common case in the compiler. We won't be 1446ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom // able to invoke the constructor of the exception, so use 1447ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom // AllocObject which will not invoke a constructor. 1448ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom ScopedLocalRef<jthrowable> exception( 1449ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom env, reinterpret_cast<jthrowable>(env->AllocObject(exception_class.get()))); 1450ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom if (exception.get() != NULL) { 145100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccessUnchecked soa(env); 145200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Throwable* t = reinterpret_cast<Throwable*>(soa.Self()->DecodeJObject(exception.get())); 145302fbef0e356ca43b2032044f870d59de4a4ae92aIan Rogers t->SetDetailMessage(String::AllocFromModifiedUtf8(msg)); 145400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers soa.Self()->SetException(t); 1455ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom } else { 1456ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom LOG(ERROR) << "Couldn't throw new " << descriptor << " because JNI AllocObject failed: " 1457ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom << PrettyTypeOf(GetException()); 1458ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom CHECK(IsExceptionPending()); 1459ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom } 1460ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom return; 1461ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom } 1462a4f94740f9d66b21f4bcd3a225c434aa29cfa323Elliott Hughes int rc = ::art::ThrowNewException(env, exception_class.get(), msg, cause); 146330646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes if (rc != JNI_OK) { 146430646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes LOG(ERROR) << "Couldn't throw new " << descriptor << " because JNI ThrowNew failed: " 146530646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes << PrettyTypeOf(GetException()); 146630646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes CHECK(IsExceptionPending()); 146730646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 1468a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes} 1469a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes 14702ced6a534157d5d963693346904389c19775d2daElliott Hughesvoid Thread::ThrowOutOfMemoryError(const char* msg) { 14712ced6a534157d5d963693346904389c19775d2daElliott Hughes LOG(ERROR) << StringPrintf("Throwing OutOfMemoryError \"%s\"%s", 14722ced6a534157d5d963693346904389c19775d2daElliott Hughes msg, (throwing_OutOfMemoryError_ ? " (recursive case)" : "")); 1473726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes if (!throwing_OutOfMemoryError_) { 1474726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes throwing_OutOfMemoryError_ = true; 147557aba86f29d7e795bf7e68c65cc464d2291b6af1Elliott Hughes ThrowNewException("Ljava/lang/OutOfMemoryError;", msg); 1476418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes } else { 1477225f5a1df25241babd16cdba54056b9e2cd166a2Elliott Hughes Dump(LOG(ERROR)); // The pre-allocated OOME has no stack, so help out and log one. 1478225f5a1df25241babd16cdba54056b9e2cd166a2Elliott Hughes SetException(Runtime::Current()->GetPreAllocatedOutOfMemoryError()); 1479418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes } 1480726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes throwing_OutOfMemoryError_ = false; 148179082e367845bbd68ec44ef2ddd1be8ef0e1550fElliott Hughes} 148279082e367845bbd68ec44ef2ddd1be8ef0e1550fElliott Hughes 1483498508c1187dc07d3eae5476784cde20f5224d93Elliott HughesThread* Thread::CurrentFromGdb() { 1484accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes return Thread::Current(); 1485accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes} 1486accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1487accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughesvoid Thread::DumpFromGdb() const { 14886b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom std::ostringstream ss; 14896b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom Dump(ss); 1490955724179c6c739524f610023287f56b24dc31deElliott Hughes std::string str(ss.str()); 14916b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom // log to stderr for debugging command line processes 14926b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom std::cerr << str; 14936b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom#ifdef HAVE_ANDROID_OS 14946b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom // log to logcat for debugging frameworks processes 14956b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom LOG(INFO) << str; 14966b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom#endif 1497accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes} 1498accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 149998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughesstruct EntryPointInfo { 150098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes uint32_t offset; 150198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes const char* name; 150298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes}; 150398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes#define ENTRY_POINT_INFO(x) { ENTRYPOINT_OFFSET(x), #x } 150498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughesstatic const EntryPointInfo gThreadEntryPointInfo[] = { 150598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pAllocArrayFromCode), 150698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pAllocArrayFromCodeWithAccessCheck), 150798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pAllocObjectFromCode), 150898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pAllocObjectFromCodeWithAccessCheck), 150998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pCheckAndAllocArrayFromCode), 151098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pCheckAndAllocArrayFromCodeWithAccessCheck), 151198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInstanceofNonTrivialFromCode), 151298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pCanPutArrayElementFromCode), 151398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pCheckCastFromCode), 151498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pDebugMe), 151598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pUpdateDebuggerFromCode), 151698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInitializeStaticStorage), 151798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInitializeTypeAndVerifyAccessFromCode), 151898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInitializeTypeFromCode), 151998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pResolveStringFromCode), 1520474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers ENTRY_POINT_INFO(pGetAndClearException), 152198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pSet32Instance), 152298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pSet32Static), 152398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pSet64Instance), 152498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pSet64Static), 152598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pSetObjInstance), 152698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pSetObjStatic), 152798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pGet32Instance), 152898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pGet32Static), 152998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pGet64Instance), 153098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pGet64Static), 153198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pGetObjInstance), 153298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pGetObjStatic), 153398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pHandleFillArrayDataFromCode), 153498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pFindNativeMethod), 153500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ENTRY_POINT_INFO(pJniMethodStart), 153600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ENTRY_POINT_INFO(pJniMethodStartSynchronized), 153700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ENTRY_POINT_INFO(pJniMethodEnd), 153800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ENTRY_POINT_INFO(pJniMethodEndSynchronized), 153900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ENTRY_POINT_INFO(pJniMethodEndWithReference), 154000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ENTRY_POINT_INFO(pJniMethodEndWithReferenceSynchronized), 154198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pLockObjectFromCode), 154298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pUnlockObjectFromCode), 154398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pCmpgDouble), 154498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pCmpgFloat), 154598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pCmplDouble), 154698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pCmplFloat), 154798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pDadd), 154898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pDdiv), 154998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pDmul), 155098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pDsub), 155198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pF2d), 155298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pFmod), 15530183dd7297709ef0beb31e120fc34fdd12f61915Ian Rogers ENTRY_POINT_INFO(pSqrt), 155498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pI2d), 155598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pL2d), 155698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pD2f), 155798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pFadd), 155898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pFdiv), 155998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pFmodf), 156098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pFmul), 156198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pFsub), 156298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pI2f), 156398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pL2f), 156498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pD2iz), 156598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pF2iz), 156698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pIdivmod), 156798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pD2l), 156898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pF2l), 156998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pLdiv), 157098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pLdivmod), 157198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pLmul), 157298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pShlLong), 157398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pShrLong), 157498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pUshrLong), 157598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pIndexOf), 157698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pMemcmp16), 157798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pStringCompareTo), 157898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pMemcpy), 157998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pUnresolvedDirectMethodTrampolineFromCode), 158098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInvokeDirectTrampolineWithAccessCheck), 158198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInvokeInterfaceTrampoline), 158298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInvokeInterfaceTrampolineWithAccessCheck), 158398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInvokeStaticTrampolineWithAccessCheck), 158498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInvokeSuperTrampolineWithAccessCheck), 158598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInvokeVirtualTrampolineWithAccessCheck), 158698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pCheckSuspendFromCode), 158798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pTestSuspendFromCode), 158898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pDeliverException), 158998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pThrowAbstractMethodErrorFromCode), 159098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pThrowArrayBoundsFromCode), 159198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pThrowDivZeroFromCode), 159298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pThrowNoSuchMethodFromCode), 159398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pThrowNullPointerFromCode), 159498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pThrowStackOverflowFromCode), 159598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes}; 159698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes#undef ENTRY_POINT_INFO 159798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes 159828fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughesvoid Thread::DumpThreadOffset(std::ostream& os, uint32_t offset, size_t size_of_pointers) { 159928fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes CHECK_EQ(size_of_pointers, 4U); // TODO: support 64-bit targets. 160098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes 160198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes#define DO_THREAD_OFFSET(x) if (offset == static_cast<uint32_t>(OFFSETOF_VOLATILE_MEMBER(Thread, x))) { os << # x; return; } 1602474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers DO_THREAD_OFFSET(state_and_flags_); 160398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(card_table_); 160498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(exception_); 160598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(jni_env_); 160698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(self_); 160798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(stack_end_); 160898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(suspend_count_); 160998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(thin_lock_id_); 16100399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers //DO_THREAD_OFFSET(top_of_managed_stack_); 16110399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers //DO_THREAD_OFFSET(top_of_managed_stack_pc_); 161298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(top_sirt_); 161328fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes#undef DO_THREAD_OFFSET 161498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes 161598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes size_t entry_point_count = arraysize(gThreadEntryPointInfo); 161698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes CHECK_EQ(entry_point_count * size_of_pointers, sizeof(EntryPoints)); 161798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes uint32_t expected_offset = OFFSETOF_MEMBER(Thread, entrypoints_); 161898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes for (size_t i = 0; i < entry_point_count; ++i) { 1619474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers CHECK_EQ(gThreadEntryPointInfo[i].offset, expected_offset) << gThreadEntryPointInfo[i].name; 162098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes expected_offset += size_of_pointers; 162198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes if (gThreadEntryPointInfo[i].offset == offset) { 162298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes os << gThreadEntryPointInfo[i].name; 162398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes return; 162498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes } 162598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes } 162698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes os << offset; 162728fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes} 162828fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes 16290399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersstatic const bool kDebugExceptionDelivery = false; 16300399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass CatchBlockStackVisitor : public StackVisitor { 1631bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers public: 16320399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers CatchBlockStackVisitor(Thread* self, Throwable* exception) 1633b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 16340399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers : StackVisitor(self->GetManagedStack(), self->GetTraceStack(), self->GetLongJumpContext()), 16350399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers self_(self), exception_(exception), to_find_(exception->GetClass()), throw_method_(NULL), 16360399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers throw_frame_id_(0), throw_dex_pc_(0), handler_quick_frame_(NULL), 16370399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers handler_quick_frame_pc_(0), handler_dex_pc_(0), native_method_count_(0), 163857b86d47b66322693a070185fadfb43cb9c12eabIan Rogers method_tracing_active_(Runtime::Current()->IsMethodTracingActive()) { 163952673ffae0025d86f4023735581f19ebcc477487Ian Rogers // Exception not in root sets, can't allow GC. 164052673ffae0025d86f4023735581f19ebcc477487Ian Rogers last_no_assert_suspension_cause_ = self->StartAssertNoThreadSuspension("Finding catch block"); 164152673ffae0025d86f4023735581f19ebcc477487Ian Rogers } 164252673ffae0025d86f4023735581f19ebcc477487Ian Rogers 164352673ffae0025d86f4023735581f19ebcc477487Ian Rogers ~CatchBlockStackVisitor() { 164452673ffae0025d86f4023735581f19ebcc477487Ian Rogers LOG(FATAL) << "UNREACHABLE"; // Expected to take long jump. 164567375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers } 1646bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 1647b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 1648b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 164966f19258f9728d4ffe026074d8fd429d639802faMathieu Chartier AbstractMethod* method = GetMethod(); 1650530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes if (method == NULL) { 16510399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // This is the upcall, we remember the frame and last pc so that we may long jump to them. 16520399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers handler_quick_frame_pc_ = GetCurrentQuickFramePc(); 16530399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers handler_quick_frame_ = GetCurrentQuickFrame(); 165457b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return false; // End stack walk. 1655530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes } 1656530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes uint32_t dex_pc = DexFile::kDexNoIndex; 165757b86d47b66322693a070185fadfb43cb9c12eabIan Rogers if (method->IsRuntimeMethod()) { 1658530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes // ignore callee save method 165957b86d47b66322693a070185fadfb43cb9c12eabIan Rogers DCHECK(method->IsCalleeSaveMethod()); 1660530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes } else { 16610399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (throw_method_ == NULL) { 16620399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers throw_method_ = method; 16630399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers throw_frame_id_ = GetFrameId(); 16640399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers throw_dex_pc_ = GetDexPc(); 16650399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 16660399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (method->IsNative()) { 16670399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers native_method_count_++; 16680399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } else { 16690399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Unwind stack when an exception occurs during method tracing 16700399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (UNLIKELY(method_tracing_active_ && IsTraceExitPc(GetCurrentQuickFramePc()))) { 16718320f3867c02bae9bef6cdab267820cb7b412781buzbee uintptr_t pc = TraceMethodUnwindFromCode(Thread::Current()); 16720c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers dex_pc = method->ToDexPc(pc); 16730399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } else { 16740399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers dex_pc = GetDexPc(); 1675530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes } 1676bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers } 1677530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes } 1678530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes if (dex_pc != DexFile::kDexNoIndex) { 1679530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes uint32_t found_dex_pc = method->FindCatchBlock(to_find_, dex_pc); 1680530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes if (found_dex_pc != DexFile::kDexNoIndex) { 16810399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers handler_dex_pc_ = found_dex_pc; 16820c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers handler_quick_frame_pc_ = method->ToNativePc(found_dex_pc); 16830399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers handler_quick_frame_ = GetCurrentQuickFrame(); 168457b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return false; // End stack walk. 1685bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers } 16861a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 168757b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return true; // Continue stack walk. 16881a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 16891a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 1690b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers void DoLongJump() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 169166f19258f9728d4ffe026074d8fd429d639802faMathieu Chartier AbstractMethod* catch_method = *handler_quick_frame_; 16926e9d22c78c1016e70f8c2a9e6bc66c94ec36f728Elliott Hughes Dbg::PostException(self_, throw_frame_id_, throw_method_, throw_dex_pc_, 16930399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers catch_method, handler_dex_pc_, exception_); 16940399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (kDebugExceptionDelivery) { 16950399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (catch_method == NULL) { 16960399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers LOG(INFO) << "Handler is upcall"; 16970399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } else { 16980399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 16990399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers const DexFile& dex_file = 17000399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers class_linker->FindDexFile(catch_method->GetDeclaringClass()->GetDexCache()); 17010399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers int line_number = dex_file.GetLineNumFromPC(catch_method, handler_dex_pc_); 17020399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers LOG(INFO) << "Handler: " << PrettyMethod(catch_method) << " (line: " << line_number << ")"; 17030399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 17040399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 170552673ffae0025d86f4023735581f19ebcc477487Ian Rogers self_->SetException(exception_); // Exception back in root set. 170652673ffae0025d86f4023735581f19ebcc477487Ian Rogers self_->EndAssertNoThreadSuspension(last_no_assert_suspension_cause_); 17070399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Place context back on thread so it will be available when we continue. 17080399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers self_->ReleaseLongJumpContext(context_); 17090399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers context_->SetSP(reinterpret_cast<uintptr_t>(handler_quick_frame_)); 17100399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers CHECK_NE(handler_quick_frame_pc_, 0u); 17110399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers context_->SetPC(handler_quick_frame_pc_); 17120399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers context_->SmashCallerSaves(); 17130399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers context_->DoLongJump(); 17140399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 17150399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 17160399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers private: 17170399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers Thread* self_; 17180399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers Throwable* exception_; 17190399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // The type of the exception catch block to find. 1720bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers Class* to_find_; 172166f19258f9728d4ffe026074d8fd429d639802faMathieu Chartier AbstractMethod* throw_method_; 17220399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers JDWP::FrameId throw_frame_id_; 17230399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers uint32_t throw_dex_pc_; 17240399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Quick frame with found handler or last frame if no handler found. 172566f19258f9728d4ffe026074d8fd429d639802faMathieu Chartier AbstractMethod** handler_quick_frame_; 17260399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // PC to branch to for the handler. 17270399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers uintptr_t handler_quick_frame_pc_; 17280399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Associated dex PC. 17290399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers uint32_t handler_dex_pc_; 173067375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers // Number of native methods passed in crawl (equates to number of SIRTs to pop) 173167375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers uint32_t native_method_count_; 173257b86d47b66322693a070185fadfb43cb9c12eabIan Rogers // Is method tracing active? 173357b86d47b66322693a070185fadfb43cb9c12eabIan Rogers const bool method_tracing_active_; 173452673ffae0025d86f4023735581f19ebcc477487Ian Rogers // Support for nesting no thread suspension checks. 173552673ffae0025d86f4023735581f19ebcc477487Ian Rogers const char* last_no_assert_suspension_cause_; 1736bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers}; 1737bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 1738ff1ed4770bf7ff024a807b9f909b1a26abb78341Ian Rogersvoid Thread::DeliverException() { 1739d07986fad0d08cdf05505cf9230714a2cf0dd9aeElliott Hughes Throwable* exception = GetException(); // Get exception from thread 1740ff1ed4770bf7ff024a807b9f909b1a26abb78341Ian Rogers CHECK(exception != NULL); 174128ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers // Don't leave exception visible while we try to find the handler, which may cause class 1742d07986fad0d08cdf05505cf9230714a2cf0dd9aeElliott Hughes // resolution. 174328ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers ClearException(); 174428ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (kDebugExceptionDelivery) { 1745a32a6fd4a781262dff4fec102da053d16b7ef6c0Ian Rogers String* msg = exception->GetDetailMessage(); 1746a32a6fd4a781262dff4fec102da053d16b7ef6c0Ian Rogers std::string str_msg(msg != NULL ? msg->ToModifiedUtf8() : ""); 1747a32a6fd4a781262dff4fec102da053d16b7ef6c0Ian Rogers DumpStack(LOG(INFO) << "Delivering exception: " << PrettyTypeOf(exception) 1748c073b075241640c94c27e661ed6f29ff5fcee5d8Elliott Hughes << ": " << str_msg << "\n"); 174928ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 17500399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers CatchBlockStackVisitor catch_finder(this, exception); 17510399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers catch_finder.WalkStack(true); 17520399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers catch_finder.DoLongJump(); 17539a8a8889418e09bf2d4ae3f683fbb40a71c3c8f4Ian Rogers LOG(FATAL) << "UNREACHABLE"; 1754bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers} 1755bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 1756bdb0391258abc54bf77c676e36847d28a783bfe5Ian RogersContext* Thread::GetLongJumpContext() { 175785d1545e985ac689db4bad7849880e843707c862Elliott Hughes Context* result = long_jump_context_; 1758bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers if (result == NULL) { 1759bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers result = Context::Create(); 17600399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } else { 17610399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers long_jump_context_ = NULL; // Avoid context being shared. 17621a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 1763bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers return result; 17641a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao} 17651a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 176666f19258f9728d4ffe026074d8fd429d639802faMathieu ChartierAbstractMethod* Thread::GetCurrentMethod(uint32_t* dex_pc, size_t* frame_id) const { 17670399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers struct CurrentMethodVisitor : public StackVisitor { 17680399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers CurrentMethodVisitor(const ManagedStack* stack, 1769ca190666fb11820153f74274c495ba1f913d8a69Ian Rogers const std::vector<TraceStackFrame>* trace_stack) 1770b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 177108fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes : StackVisitor(stack, trace_stack, NULL), method_(NULL), dex_pc_(0), frame_id_(0) {} 17728be2d40d42223b515de12629216151a558895969Elliott Hughes 1773b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers virtual bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 177466f19258f9728d4ffe026074d8fd429d639802faMathieu Chartier AbstractMethod* m = GetMethod(); 17750399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (m->IsRuntimeMethod()) { 17760399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Continue if this is a runtime method. 17770399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return true; 17780399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 17790399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers method_ = m; 17800399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers dex_pc_ = GetDexPc(); 17810399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers frame_id_ = GetFrameId(); 17820399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return false; 17830399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 178466f19258f9728d4ffe026074d8fd429d639802faMathieu Chartier AbstractMethod* method_; 17850399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers uint32_t dex_pc_; 17860399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers size_t frame_id_; 17870399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers }; 17880399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 17890399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers CurrentMethodVisitor visitor(GetManagedStack(), GetTraceStack()); 17900399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers visitor.WalkStack(false); 17910399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (dex_pc != NULL) { 17920399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers *dex_pc = visitor.dex_pc_; 1793d07986fad0d08cdf05505cf9230714a2cf0dd9aeElliott Hughes } 17940399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (frame_id != NULL) { 17950399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers *frame_id = visitor.frame_id_; 1796ee0d3fb2fbd736484fe8c3177a4e965ea86d1c65TDYa } 17970399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return visitor.method_; 1798ee0d3fb2fbd736484fe8c3177a4e965ea86d1c65TDYa} 179933dc7717cd16592bcc825350bea6305be9eb2ea1jeffhao 18005f79133a435ebcb20000370d56046fe01201dd80Elliott Hughesbool Thread::HoldsLock(Object* object) { 18015f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes if (object == NULL) { 18025f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes return false; 18035f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 180424a3c2e9924e8765c4a9b4d383cb8f3b922f9c9fBrian Carlstrom return object->GetThinLockId() == thin_lock_id_; 18055f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes} 18065f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes 18070399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass ReferenceMapVisitor : public StackVisitor { 1808d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers public: 18090399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ReferenceMapVisitor(const ManagedStack* stack, const std::vector<TraceStackFrame>* trace_stack, 1810ca190666fb11820153f74274c495ba1f913d8a69Ian Rogers Context* context, Heap::RootVisitor* root_visitor, void* arg) 1811b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 1812ca190666fb11820153f74274c495ba1f913d8a69Ian Rogers : StackVisitor(stack, trace_stack, context), root_visitor_(root_visitor), arg_(arg) {} 1813d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 1814b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 18156a4be3a6226cec645cf905dd352e44f7968a7fa4Brian Carlstrom if (false) { 18160399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers LOG(INFO) << "Visiting stack roots in " << PrettyMethod(GetMethod()) 18170399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers << StringPrintf("@ PC:%04x", GetDexPc()); 18186a4be3a6226cec645cf905dd352e44f7968a7fa4Brian Carlstrom } 18190399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ShadowFrame* shadow_frame = GetCurrentShadowFrame(); 18200399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (shadow_frame != NULL) { 18210399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers shadow_frame->VisitRoots(root_visitor_, arg_); 18220399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } else { 182366f19258f9728d4ffe026074d8fd429d639802faMathieu Chartier AbstractMethod* m = GetMethod(); 18240399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Process register map (which native and runtime methods don't have) 1825640495bd1aebcd0b429d59f62b57d0c984b2d8c6Ian Rogers if (!m->IsNative() && !m->IsRuntimeMethod() && !m->IsProxyMethod()) { 18260c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const uint8_t* native_gc_map = m->GetNativeGcMap(); 18270c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers CHECK(native_gc_map != NULL) << PrettyMethod(m); 18280c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers mh_.ChangeMethod(m); 18290c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const DexFile::CodeItem* code_item = mh_.GetCodeItem(); 1830caf7654a0e6c76c7489970b1a246fccf220f9982Elliott Hughes DCHECK(code_item != NULL) << PrettyMethod(m); // Can't be NULL or how would we compile its instructions? 18310c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers NativePcOffsetToReferenceMap map(native_gc_map); 18320399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers size_t num_regs = std::min(map.RegWidth() * 8, 18330399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers static_cast<size_t>(code_item->registers_size_)); 18340c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers if (num_regs > 0) { 18350c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const uint8_t* reg_bitmap = map.FindBitMap(GetNativePcOffset()); 18360c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers DCHECK(reg_bitmap != NULL); 18370c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const VmapTable vmap_table(m->GetVmapTableRaw()); 18380c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t core_spills = m->GetCoreSpillMask(); 18390c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t fp_spills = m->GetFpSpillMask(); 18400c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers size_t frame_size = m->GetFrameSizeInBytes(); 18410c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // For all dex registers in the bitmap 184266f19258f9728d4ffe026074d8fd429d639802faMathieu Chartier AbstractMethod** cur_quick_frame = GetCurrentQuickFrame(); 18430c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers DCHECK(cur_quick_frame != NULL); 18440c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers for (size_t reg = 0; reg < num_regs; ++reg) { 18450c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // Does this register hold a reference? 18460c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers if (TestBitmap(reg, reg_bitmap)) { 18470c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t vmap_offset; 18480c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers Object* ref; 18490c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers if (vmap_table.IsInContext(reg, vmap_offset)) { 18500c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // Compute the register we need to load from the context 18510c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t spill_mask = core_spills; 18520c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers CHECK_LT(vmap_offset, static_cast<uint32_t>(__builtin_popcount(spill_mask))); 18530c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t matches = 0; 18540c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t spill_shifts = 0; 18550c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers while (matches != (vmap_offset + 1)) { 18560c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers DCHECK_NE(spill_mask, 0u); 18570c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers matches += spill_mask & 1; // Add 1 if the low bit is set 18580c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers spill_mask >>= 1; 18590c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers spill_shifts++; 18600c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers } 18610c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers spill_shifts--; // wind back one as we want the last match 18620c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers ref = reinterpret_cast<Object*>(GetGPR(spill_shifts)); 18630c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers } else { 18640c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers ref = reinterpret_cast<Object*>(GetVReg(cur_quick_frame, code_item, core_spills, 18650c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers fp_spills, frame_size, reg)); 18660c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers } 18670c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers if (ref != NULL) { 18680c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers root_visitor_(ref, arg_); 18690399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 1870d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 18714f894e385e8ac018f078be75fea0a45696626b15Shih-wei Liao } 1872d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 1873d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 1874d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 1875530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 1876d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 1877d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 1878d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers private: 1879d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers bool TestBitmap(int reg, const uint8_t* reg_vector) { 1880d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers return ((reg_vector[reg / 8] >> (reg % 8)) & 0x01) != 0; 1881d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 1882d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 18830c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // Call-back when we visit a root. 1884d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers Heap::RootVisitor* root_visitor_; 18850c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // Argument to call-back. 1886d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers void* arg_; 18870c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // A method helper we keep around to avoid dex file/cache re-computations. 18880c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers MethodHelper mh_; 1889d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers}; 1890d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 1891d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogersvoid Thread::VisitRoots(Heap::RootVisitor* visitor, void* arg) { 1892d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes if (exception_ != NULL) { 1893d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes visitor(exception_, arg); 1894d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 189540381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom if (class_loader_override_ != NULL) { 189640381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom visitor(class_loader_override_, arg); 189740381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom } 1898410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes jni_env_->locals.VisitRoots(visitor, arg); 1899410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes jni_env_->monitors.VisitRoots(visitor, arg); 19008dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao 19018dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao SirtVisitRoots(visitor, arg); 19028dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao 1903d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers // Visit roots on this thread's stack 19040399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers Context* context = GetLongJumpContext(); 19050399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ReferenceMapVisitor mapper(GetManagedStack(), GetTraceStack(), context, visitor, arg); 19060399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers mapper.WalkStack(); 19070399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ReleaseLongJumpContext(context); 1908410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes} 1909410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes 1910250455229aa0cc07bbd18174efe510bd52631a99jeffhao#if VERIFY_OBJECT_ENABLED 19110399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersstatic void VerifyObject(const Object* obj, void* arg) { 19120399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers Heap* heap = reinterpret_cast<Heap*>(arg); 19130399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers heap->VerifyObject(obj); 1914250455229aa0cc07bbd18174efe510bd52631a99jeffhao} 1915250455229aa0cc07bbd18174efe510bd52631a99jeffhao 1916250455229aa0cc07bbd18174efe510bd52631a99jeffhaovoid Thread::VerifyStack() { 1917e66ac79b90a12b01b9d67ee9f7f586e638e67fabjeffhao UniquePtr<Context> context(Context::Create()); 191867054b57d056a2c3892a69efbde28a4189bc17b4Ian Rogers ReferenceMapVisitor mapper(GetManagedStack(), GetTraceStack(), context.get(), VerifyObject, 19190399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers Runtime::Current()->GetHeap()); 19200399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers mapper.WalkStack(); 1921250455229aa0cc07bbd18174efe510bd52631a99jeffhao} 1922250455229aa0cc07bbd18174efe510bd52631a99jeffhao#endif 1923250455229aa0cc07bbd18174efe510bd52631a99jeffhao 192400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers// Set the stack end to that to be used during a stack overflow 192500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::SetStackEndForStackOverflow() { 192600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // During stack overflow we allow use of the full stack 192700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (stack_end_ == stack_begin_) { 192800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DumpStack(std::cerr); 192900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(FATAL) << "Need to increase kStackOverflowReservedBytes (currently " 193000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << kStackOverflowReservedBytes << ")"; 193100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 193200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 193300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers stack_end_ = stack_begin_; 193400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 193500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 1936330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughesstd::ostream& operator<<(std::ostream& os, const Thread& thread) { 193700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers thread.ShortDump(os); 1938330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes return os; 1939330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes} 1940330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes 194100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers#ifndef NDEBUG 194200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::AssertThreadSuspensionIsAllowable(bool check_locks) const { 194300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_EQ(0u, no_thread_suspension_) << last_no_thread_suspension_cause_; 194400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (check_locks) { 194500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers bool bad_mutexes_held = false; 194600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers for (int i = kMaxMutexLevel; i >= 0; --i) { 194700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // We expect no locks except the mutator_lock_. 194800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (i != kMutatorLock) { 194981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers BaseMutex* held_mutex = GetHeldMutex(static_cast<LockLevel>(i)); 195000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (held_mutex != NULL) { 195100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(ERROR) << "holding \"" << held_mutex->GetName() 195200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << "\" at point where thread suspension is expected"; 1953ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes bad_mutexes_held = true; 1954ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes } 1955ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes } 1956ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes } 195700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK(!bad_mutexes_held); 1958ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes } 1959ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes} 196000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers#endif 1961a4060e5fe4729fa30bde965efc35779690478fa4Elliott Hughes 19628daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes} // namespace art 1963