thread.cc revision f08e473519dc5c7ccb85eb2b333f9d0aff23a329
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 19b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers#include <pthread.h> 202acf36d8cfeb5ddb293904148aa70f25ef6d8845Elliott Hughes#include <signal.h> 21dbf05b722af99ba2fd2f4c4fc7eb6c3e9880e5d1Brian Carlstrom#include <sys/resource.h> 22dbf05b722af99ba2fd2f4c4fc7eb6c3e9880e5d1Brian Carlstrom#include <sys/time.h> 23a09576416788b916095739e43a16917e7948f3a4Elliott Hughes 24b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro#include <algorithm> 25dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes#include <bitset> 26eb4f614f2eb53b92ebd416fa418f550861655887Elliott Hughes#include <cerrno> 27a09576416788b916095739e43a16917e7948f3a4Elliott Hughes#include <iostream> 28b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro#include <list> 29b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 3076b6167407c2b6f5d40ad895b2793a6b037f54b2Elliott Hughes#include "base/mutex.h" 31a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes#include "class_linker.h" 322dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "class_linker-inl.h" 33474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers#include "cutils/atomic.h" 34474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers#include "cutils/atomic-inline.h" 3546e251bf7200cc06f5a9a82ee2030e650f5e1443Elliott Hughes#include "debugger.h" 364f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers#include "dex_file-inl.h" 370c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers#include "gc_map.h" 382dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "gc/card_table-inl.h" 39408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers#include "heap.h" 405d9173014c1ca09f7249a6b07629aa37778b5f8fJeff Hao#include "invoke_arg_array_builder.h" 41c5f7c91ab89055cffb573fff7e06dbdd860bccedElliott Hughes#include "jni_internal.h" 422dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/abstract_method-inl.h" 432dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/class-inl.h" 442dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/class_loader.h" 45c0fa3ad44a84b7f658d16a717027bf95abc85db6Ian Rogers#include "mirror/field-inl.h" 462dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/object_array-inl.h" 472dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/stack_trace_element.h" 488e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes#include "monitor.h" 4957b86d47b66322693a070185fadfb43cb9c12eabIan Rogers#include "oat/runtime/context.h" 506d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers#include "object_utils.h" 519a6bae896a2f003d7216603bf29771d105c10ca4Jesse Wilson#include "reflection.h" 52578bbdc684db8ed68e9fedbc678669d27fa68b6eBrian Carlstrom#include "runtime.h" 535433072f589b61413e042eddf76e8190a048f71dbuzbee#include "runtime_support.h" 5400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers#include "scoped_thread_state_change.h" 5546e251bf7200cc06f5a9a82ee2030e650f5e1443Elliott Hughes#include "ScopedLocalRef.h" 561f5393447b9f45be7918042d9ee7b521376de866Ian Rogers#include "sirt_ref.h" 577469ebf3888b8037421cb6834f37f946646265ecMathieu Chartier#include "gc/space.h" 5868e76526e98432625464022cb26f66b9ef6f5af4Elliott Hughes#include "stack.h" 5968e76526e98432625464022cb26f66b9ef6f5af4Elliott Hughes#include "stack_indirect_reference_table.h" 60693ff61274cd2c9b8eb7e68c370f84a911b8ca52Ian Rogers#include "thread-inl.h" 618daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes#include "thread_list.h" 62a09576416788b916095739e43a16917e7948f3a4Elliott Hughes#include "utils.h" 63ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa#include "verifier/dex_gc_map.h" 6462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers#include "verifier/method_verifier.h" 65eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes#include "well_known_classes.h" 66b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 67b557353b22c728eecbd1c68593b482622c7782a8Carl Shapironamespace art { 68b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 69b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiropthread_key_t Thread::pthread_key_self_; 7000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan RogersConditionVariable* Thread::resume_cond_; 71b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 727dc5166ea740359d381097a7ab382c1dd404055fElliott Hughesstatic const char* kThreadNameDuringStartup = "<native thread without managed peer>"; 737dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes 745d76c435082332ef79a22962386fa92a0870e378Ian Rogersvoid Thread::InitCardTable() { 75b3bd5f07884f5a1f2b84224363b1372d7c28d447Elliott Hughes card_table_ = Runtime::Current()->GetHeap()->GetCardTable()->GetBiasedBegin(); 765d76c435082332ef79a22962386fa92a0870e378Ian Rogers} 775d76c435082332ef79a22962386fa92a0870e378Ian Rogers 7899250ba6a2cc72b8894dffa77c1fca5570087e3cElliott Hughes#if !defined(__APPLE__) 793ea0f42467790809fcfc9fc861605d465808090fElliott Hughesstatic void UnimplementedEntryPoint() { 803ea0f42467790809fcfc9fc861605d465808090fElliott Hughes UNIMPLEMENTED(FATAL); 813ea0f42467790809fcfc9fc861605d465808090fElliott Hughes} 8299250ba6a2cc72b8894dffa77c1fca5570087e3cElliott Hughes#endif 833ea0f42467790809fcfc9fc861605d465808090fElliott Hughes 843ea4ec5629613013ad9b0d7a69abdb94491ac46fbuzbeevoid Thread::InitFunctionPointers() { 8599250ba6a2cc72b8894dffa77c1fca5570087e3cElliott Hughes#if !defined(__APPLE__) // The Mac GCC is too old to accept this code. 863ea0f42467790809fcfc9fc861605d465808090fElliott Hughes // Insert a placeholder so we can easily tell if we call an unimplemented entry point. 873ea0f42467790809fcfc9fc861605d465808090fElliott Hughes uintptr_t* begin = reinterpret_cast<uintptr_t*>(&entrypoints_); 883ea0f42467790809fcfc9fc861605d465808090fElliott Hughes uintptr_t* end = reinterpret_cast<uintptr_t*>(reinterpret_cast<uint8_t*>(begin) + sizeof(entrypoints_)); 893ea0f42467790809fcfc9fc861605d465808090fElliott Hughes for (uintptr_t* it = begin; it != end; ++it) { 903ea0f42467790809fcfc9fc861605d465808090fElliott Hughes *it = reinterpret_cast<uintptr_t>(UnimplementedEntryPoint); 913ea0f42467790809fcfc9fc861605d465808090fElliott Hughes } 9299250ba6a2cc72b8894dffa77c1fca5570087e3cElliott Hughes#endif 9357b86d47b66322693a070185fadfb43cb9c12eabIan Rogers InitEntryPoints(&entrypoints_); 94c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes} 95c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes 9662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::SetDeoptimizationShadowFrame(ShadowFrame* sf) { 9762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers deoptimization_shadow_frame_ = sf; 983ea4ec5629613013ad9b0d7a69abdb94491ac46fbuzbee} 993ea4ec5629613013ad9b0d7a69abdb94491ac46fbuzbee 10062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::SetDeoptimizationReturnValue(const JValue& ret_val) { 101306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers deoptimization_return_value_.SetJ(ret_val.GetJ()); 102306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers} 103306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers 104306057fd278d75bf3794bd5243a3b6652c487d18Ian RogersShadowFrame* Thread::GetAndClearDeoptimizationShadowFrame(JValue* ret_val) { 105306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers ShadowFrame* sf = deoptimization_shadow_frame_; 106306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers deoptimization_shadow_frame_ = NULL; 107306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers ret_val->SetJ(deoptimization_return_value_.GetJ()); 108306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers return sf; 109306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers} 110306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers 111caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstromvoid Thread::InitTid() { 112caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom tid_ = ::art::GetTid(); 113caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom} 114caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom 115caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstromvoid Thread::InitAfterFork() { 1168029cbe626a467b344ff84d86170d757aa12ecd4Elliott Hughes // One thread (us) survived the fork, but we have a new tid so we need to 1178029cbe626a467b344ff84d86170d757aa12ecd4Elliott Hughes // update the value stashed in this Thread*. 118caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom InitTid(); 119caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom} 120caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom 12178128a63b2615744760b7f8ab83df9764a5d4a95Brian Carlstromvoid* Thread::CreateCallback(void* arg) { 12293e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes Thread* self = reinterpret_cast<Thread*>(arg); 123120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime* runtime = Runtime::Current(); 124120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (runtime == NULL) { 125120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << "Thread attaching to non-existent runtime: " << *self; 126120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers return NULL; 127120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 128120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers { 12950b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers // TODO: pass self to MutexLock - requires self to equal Thread::Current(), which is only true 13050b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers // after self->Init(). 13150b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers MutexLock mu(NULL, *Locks::runtime_shutdown_lock_); 132120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Check that if we got here we cannot be shutting down (as shutdown should never have started 133120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // while threads are being born). 134120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers CHECK(!runtime->IsShuttingDown()); 135120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers self->Init(runtime->GetThreadList(), runtime->GetJavaVM()); 136120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime::Current()->EndThreadBirth(); 137120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 13847179f76e3f03fe3eb21dfb081d50733ca316371Elliott Hughes { 13900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(self); 140cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers 141cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers // Copy peer into self, deleting global reference when done. 142cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers CHECK(self->jpeer_ != NULL); 1432dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers self->opeer_ = soa.Decode<mirror::Object*>(self->jpeer_); 144cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers self->GetJniEnv()->DeleteGlobalRef(self->jpeer_); 145cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers self->jpeer_ = NULL; 146cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers 147365c10235438607541fa2259a5fec48061b90bd8Ian Rogers { 1482dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::String> thread_name(self, self->GetThreadName(soa)); 149365c10235438607541fa2259a5fec48061b90bd8Ian Rogers self->SetThreadName(thread_name->ToModifiedUtf8().c_str()); 150365c10235438607541fa2259a5fec48061b90bd8Ian Rogers } 151365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Dbg::PostThreadStart(self); 15293e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 153365c10235438607541fa2259a5fec48061b90bd8Ian Rogers // Invoke the 'run' method of our java.lang.Thread. 1542dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* receiver = self->opeer_; 155365c10235438607541fa2259a5fec48061b90bd8Ian Rogers jmethodID mid = WellKnownClasses::java_lang_Thread_run; 1562dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod* m = 157cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers receiver->GetClass()->FindVirtualMethodForVirtualOrInterface(soa.DecodeMethod(mid)); 1585d9173014c1ca09f7249a6b07629aa37778b5f8fJeff Hao JValue result; 1595d9173014c1ca09f7249a6b07629aa37778b5f8fJeff Hao ArgArray arg_array(NULL, 0); 1605d9173014c1ca09f7249a6b07629aa37778b5f8fJeff Hao arg_array.Append(reinterpret_cast<uint32_t>(receiver)); 1616474d190d5604898354ebf767f1944b6e3e9b445Jeff Hao m->Invoke(self, arg_array.GetArray(), arg_array.GetNumBytes(), &result, 'V'); 162365c10235438607541fa2259a5fec48061b90bd8Ian Rogers } 16300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Detach and delete self. 16400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Runtime::Current()->GetThreadList()->Unregister(self); 16593e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 166b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro return NULL; 167b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro} 168b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 1692dd0e2cea360bc9206eb88ecc40d259e796c239dIan RogersThread* Thread::FromManagedThread(const ScopedObjectAccessUnchecked& soa, 1702dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* thread_peer) { 1712dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Field* f = soa.DecodeField(WellKnownClasses::java_lang_Thread_vmData); 17200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Thread* result = reinterpret_cast<Thread*>(static_cast<uintptr_t>(f->GetInt(thread_peer))); 17300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Sanity check that if we have a result it is either suspended or we hold the thread_list_lock_ 17400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // to stop it from going away. 17581d425b0b232962441616f8b14f73620bffef5e5Ian Rogers if (kIsDebugBuild) { 17681d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(soa.Self(), *Locks::thread_suspend_count_lock_); 17781d425b0b232962441616f8b14f73620bffef5e5Ian Rogers if (result != NULL && !result->IsSuspended()) { 17881d425b0b232962441616f8b14f73620bffef5e5Ian Rogers Locks::thread_list_lock_->AssertHeld(soa.Self()); 17981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers } 18000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 18100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return result; 182761928d24e4e7ed7776b52243eaf9095ad35f448Elliott Hughes} 183761928d24e4e7ed7776b52243eaf9095ad35f448Elliott Hughes 18400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan RogersThread* Thread::FromManagedThread(const ScopedObjectAccessUnchecked& soa, jobject java_thread) { 1852dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers return FromManagedThread(soa, soa.Decode<mirror::Object*>(java_thread)); 18601158d7a57c8321370667a6045220237d16e0da8Elliott Hughes} 18701158d7a57c8321370667a6045220237d16e0da8Elliott Hughes 188ab7b9dcbfc4264a0bc4889c3e463ff88a67f6a30Elliott Hughesstatic size_t FixStackSize(size_t stack_size) { 1897502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // A stack size of zero means "use the default". 190d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes if (stack_size == 0) { 191d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes stack_size = Runtime::Current()->GetDefaultStackSize(); 192d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 19361e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 1946414a97a3c6dc101ae8ebc9480114d0c327e8e8dBrian Carlstrom // Dalvik used the bionic pthread default stack size for native threads, 1956414a97a3c6dc101ae8ebc9480114d0c327e8e8dBrian Carlstrom // so include that here to support apps that expect large native stacks. 1966414a97a3c6dc101ae8ebc9480114d0c327e8e8dBrian Carlstrom stack_size += 1 * MB; 1976414a97a3c6dc101ae8ebc9480114d0c327e8e8dBrian Carlstrom 1987502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // It's not possible to request a stack smaller than the system-defined PTHREAD_STACK_MIN. 1997502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes if (stack_size < PTHREAD_STACK_MIN) { 2007502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes stack_size = PTHREAD_STACK_MIN; 2017502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes } 2027502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 2037502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // It's likely that callers are trying to ensure they have at least a certain amount of 2047502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // stack space, so we should add our reserved space on top of what they requested, rather 2057502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // than implicitly take it away from them. 2067502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes stack_size += Thread::kStackOverflowReservedBytes; 2077502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 2087502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // Some systems require the stack size to be a multiple of the system page size, so round up. 2097502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes stack_size = RoundUp(stack_size, kPageSize); 2107502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 2117502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes return stack_size; 2127502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes} 2137502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 214d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughesstatic void SigAltStack(stack_t* new_stack, stack_t* old_stack) { 215d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes if (sigaltstack(new_stack, old_stack) == -1) { 216d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes PLOG(FATAL) << "sigaltstack failed"; 217d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes } 218d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes} 219d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes 220d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughesstatic void SetUpAlternateSignalStack() { 221d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes // Create and set an alternate signal stack. 222d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes stack_t ss; 223d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes ss.ss_sp = new uint8_t[SIGSTKSZ]; 224d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes ss.ss_size = SIGSTKSZ; 225d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes ss.ss_flags = 0; 226d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes CHECK(ss.ss_sp != NULL); 227d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes SigAltStack(&ss, NULL); 228d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes 229d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes // Double-check that it worked. 230d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes ss.ss_sp = NULL; 231d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes SigAltStack(NULL, &ss); 232d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes VLOG(threads) << "Alternate signal stack is " << PrettySize(ss.ss_size) << " at " << ss.ss_sp; 233d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes} 234d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes 235d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughesstatic void TearDownAlternateSignalStack() { 236d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes // Get the pointer so we can free the memory. 237d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes stack_t ss; 238d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes SigAltStack(NULL, &ss); 239d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes uint8_t* allocated_signal_stack = reinterpret_cast<uint8_t*>(ss.ss_sp); 240d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes 241d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes // Tell the kernel to stop using it. 242d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes ss.ss_sp = NULL; 243d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes ss.ss_flags = SS_DISABLE; 2444c5231d2cd83536584f7f1063d0afffa124fcec4Elliott Hughes ss.ss_size = SIGSTKSZ; // Avoid ENOMEM failure with Mac OS' buggy libc. 245d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes SigAltStack(&ss, NULL); 246d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes 247d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes // Free it. 248d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes delete[] allocated_signal_stack; 249d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes} 250d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes 251120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogersvoid Thread::CreateNativeThread(JNIEnv* env, jobject java_peer, size_t stack_size, bool is_daemon) { 252dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier CHECK(java_peer != NULL); 253120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self = static_cast<JNIEnvExt*>(env)->self; 254120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime* runtime = Runtime::Current(); 255dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier 256120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Atomically start the birth of the thread ensuring the runtime isn't shutting down. 257120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers bool thread_start_during_shutdown = false; 258365c10235438607541fa2259a5fec48061b90bd8Ian Rogers { 259120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers MutexLock mu(self, *Locks::runtime_shutdown_lock_); 260120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (runtime->IsShuttingDown()) { 261120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers thread_start_during_shutdown = true; 262120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } else { 263120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers runtime->StartThreadBirth(); 264120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 26500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 266120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (thread_start_during_shutdown) { 267120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedLocalRef<jclass> error_class(env, env->FindClass("java/lang/InternalError")); 268120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers env->ThrowNew(error_class.get(), "Thread starting during runtime shutdown"); 269120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers return; 270120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 271120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 272120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* child_thread = new Thread(is_daemon); 273120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Use global JNI ref to hold peer live while child thread starts. 274cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers child_thread->jpeer_ = env->NewGlobalRef(java_peer); 275120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers stack_size = FixStackSize(stack_size); 276120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 277120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Thread.start is synchronized, so we know that vmData is 0, and know that we're not racing to 278120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // assign it. 279120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers env->SetIntField(java_peer, WellKnownClasses::java_lang_Thread_vmData, 280120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers reinterpret_cast<jint>(child_thread)); 28100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 28200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers pthread_t new_pthread; 28300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers pthread_attr_t attr; 28400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_PTHREAD_CALL(pthread_attr_init, (&attr), "new thread"); 28500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_PTHREAD_CALL(pthread_attr_setdetachstate, (&attr, PTHREAD_CREATE_DETACHED), "PTHREAD_CREATE_DETACHED"); 28600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_PTHREAD_CALL(pthread_attr_setstacksize, (&attr, stack_size), stack_size); 287120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers int pthread_create_result = pthread_create(&new_pthread, &attr, Thread::CreateCallback, child_thread); 28800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_PTHREAD_CALL(pthread_attr_destroy, (&attr), "new thread"); 28900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 290120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (pthread_create_result != 0) { 29100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // pthread_create(3) failed, so clean up. 2929efc3e03982f042c3ce67cc2c64dbe0f0986119bBrian Carlstrom { 293120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers MutexLock mu(self, *Locks::runtime_shutdown_lock_); 294120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers runtime->EndThreadBirth(); 295120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 296120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Manually delete the global reference since Thread::Init will not have been run. 297cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers env->DeleteGlobalRef(child_thread->jpeer_); 298cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers child_thread->jpeer_ = NULL; 299120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers delete child_thread; 300120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers child_thread = NULL; 301120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // TODO: remove from thread group? 302120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers env->SetIntField(java_peer, WellKnownClasses::java_lang_Thread_vmData, 0); 303120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers { 3049efc3e03982f042c3ce67cc2c64dbe0f0986119bBrian Carlstrom std::string msg(StringPrintf("pthread_create (%s stack) failed: %s", 3059efc3e03982f042c3ce67cc2c64dbe0f0986119bBrian Carlstrom PrettySize(stack_size).c_str(), strerror(pthread_create_result))); 306120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedObjectAccess soa(env); 307120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers soa.Self()->ThrowOutOfMemoryError(msg.c_str()); 3089efc3e03982f042c3ce67cc2c64dbe0f0986119bBrian Carlstrom } 309365c10235438607541fa2259a5fec48061b90bd8Ian Rogers } 31093e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes} 31161e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 312120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogersvoid Thread::Init(ThreadList* thread_list, JavaVMExt* java_vm) { 313462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // This function does all the initialization that must be run by the native thread it applies to. 314462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // (When we create a new thread from managed code, we allocate the Thread* in Thread::Create so 315462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // we can handshake with the corresponding native thread when it's ready.) Check this native 316462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // thread hasn't been through here already... 317cac6cc72c3331257fa6437b36a131e5d551e2f3cElliott Hughes CHECK(Thread::Current() == NULL); 318d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes SetUpAlternateSignalStack(); 31993e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes InitCpu(); 32093e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes InitFunctionPointers(); 3215d76c435082332ef79a22962386fa92a0870e378Ian Rogers InitCardTable(); 32201ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers InitTid(); 323120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Set pthread_self_ ahead of pthread_setspecific, that makes Thread::Current function, this 324120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // avoids pthread_self_ ever being invalid when discovered from Thread::Current(). 3250d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes pthread_self_ = pthread_self(); 3266a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes CHECK_PTHREAD_CALL(pthread_setspecific, (Thread::pthread_key_self_, this), "attach self"); 327120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers DCHECK_EQ(Thread::Current(), this); 328a5780dad67556297c8ca5f2608c53b193e6c4514Elliott Hughes 329cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers thin_lock_id_ = thread_list->AllocThreadId(this); 330120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers InitStackHwm(); 3315fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 332120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_ = new JNIEnvExt(this, java_vm); 333120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers thread_list->Register(this); 33493e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes} 33593e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 336664bebf92eb2151b9b570ccd42ac4b6056c3ea9cMathieu ChartierThread* Thread::Attach(const char* thread_name, bool as_daemon, jobject thread_group, 337664bebf92eb2151b9b570ccd42ac4b6056c3ea9cMathieu Chartier bool create_peer) { 338120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self; 339120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime* runtime = Runtime::Current(); 340120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (runtime == NULL) { 341120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << "Thread attaching to non-existent runtime: " << thread_name; 342120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers return NULL; 343120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 344120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers { 345120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers MutexLock mu(NULL, *Locks::runtime_shutdown_lock_); 346120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (runtime->IsShuttingDown()) { 347120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << "Thread attaching while runtime is shutting down: " << thread_name; 348120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers return NULL; 349120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } else { 350120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime::Current()->StartThreadBirth(); 351120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers self = new Thread(as_daemon); 352120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers self->Init(runtime->GetThreadList(), runtime->GetJavaVM()); 353120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime::Current()->EndThreadBirth(); 354120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 355120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 3565fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 357dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier CHECK_NE(self->GetState(), kRunnable); 358dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier self->SetState(kNative); 359726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes 360cac6cc72c3331257fa6437b36a131e5d551e2f3cElliott Hughes // If we're the main thread, ClassLinker won't be created until after we're attached, 361cac6cc72c3331257fa6437b36a131e5d551e2f3cElliott Hughes // so that thread needs a two-stage attach. Regular threads don't need this hack. 362d9c67be7c116875d96b31e640ad47d587b205605Elliott Hughes // In the compiler, all threads need this hack, because no-one's going to be getting 363d9c67be7c116875d96b31e640ad47d587b205605Elliott Hughes // a native peer! 364664bebf92eb2151b9b570ccd42ac4b6056c3ea9cMathieu Chartier if (create_peer) { 365462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes self->CreatePeer(thread_name, as_daemon, thread_group); 36606e3ad4a651c2c58dba5e865cd06d2f98462bf1dElliott Hughes } else { 36706e3ad4a651c2c58dba5e865cd06d2f98462bf1dElliott Hughes // These aren't necessary, but they improve diagnostics for unit tests & command-line tools. 36822869a9026a08b544eca4cefd67386d347e30d2cElliott Hughes if (thread_name != NULL) { 36922869a9026a08b544eca4cefd67386d347e30d2cElliott Hughes self->name_->assign(thread_name); 37022869a9026a08b544eca4cefd67386d347e30d2cElliott Hughes ::art::SetThreadName(thread_name); 37122869a9026a08b544eca4cefd67386d347e30d2cElliott Hughes } 37236e0a955e48e9357bff1eab783e493107ebfff62Ian Rogers } 373cac6cc72c3331257fa6437b36a131e5d551e2f3cElliott Hughes 3745fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes return self; 3755fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes} 3765fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 377365c10235438607541fa2259a5fec48061b90bd8Ian Rogersvoid Thread::CreatePeer(const char* name, bool as_daemon, jobject thread_group) { 378365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Runtime* runtime = Runtime::Current(); 379365c10235438607541fa2259a5fec48061b90bd8Ian Rogers CHECK(runtime->IsStarted()); 3805fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes JNIEnv* env = jni_env_; 3815fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 382462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes if (thread_group == NULL) { 383365c10235438607541fa2259a5fec48061b90bd8Ian Rogers thread_group = runtime->GetMainThreadGroup(); 384462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes } 385726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes ScopedLocalRef<jobject> thread_name(env, env->NewStringUTF(name)); 3868daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes jint thread_priority = GetNativePriority(); 3875fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes jboolean thread_is_daemon = as_daemon; 3885fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 389eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes ScopedLocalRef<jobject> peer(env, env->AllocObject(WellKnownClasses::java_lang_Thread)); 390dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier if (peer.get() == NULL) { 391dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier CHECK(IsExceptionPending()); 392dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier return; 3935d4bdc29737a693027daaf6ed3f0792368eb4baeIan Rogers } 394cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers { 395cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedObjectAccess soa(this); 3962dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers opeer_ = soa.Decode<mirror::Object*>(peer.get()); 397cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers } 398eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes env->CallNonvirtualVoidMethod(peer.get(), 399eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes WellKnownClasses::java_lang_Thread, 400eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes WellKnownClasses::java_lang_Thread_init, 401365c10235438607541fa2259a5fec48061b90bd8Ian Rogers thread_group, thread_name.get(), thread_priority, thread_is_daemon); 40200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers AssertNoPendingException(); 403d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 404120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self = this; 405120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers DCHECK_EQ(self, Thread::Current()); 406120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->SetIntField(peer.get(), WellKnownClasses::java_lang_Thread_vmData, 407120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers reinterpret_cast<jint>(self)); 408120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 409120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedObjectAccess soa(self); 4102dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::String> peer_thread_name(soa.Self(), GetThreadName(soa)); 41100fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom if (peer_thread_name.get() == NULL) { 41200fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom // The Thread constructor should have set the Thread.name to a 41300fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom // non-null value. However, because we can run without code 41400fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom // available (in the compiler, in tests), we manually assign the 41500fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom // fields the constructor should have set. 416dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier soa.DecodeField(WellKnownClasses::java_lang_Thread_daemon)-> 417cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers SetBoolean(opeer_, thread_is_daemon); 418dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier soa.DecodeField(WellKnownClasses::java_lang_Thread_group)-> 4192dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SetObject(opeer_, soa.Decode<mirror::Object*>(thread_group)); 420dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier soa.DecodeField(WellKnownClasses::java_lang_Thread_name)-> 4212dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SetObject(opeer_, soa.Decode<mirror::Object*>(thread_name.get())); 422dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier soa.DecodeField(WellKnownClasses::java_lang_Thread_priority)-> 423cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers SetInt(opeer_, thread_priority); 42400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers peer_thread_name.reset(GetThreadName(soa)); 42500fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom } 426225f5a1df25241babd16cdba54056b9e2cd166a2Elliott Hughes // 'thread_name' may have been null, so don't trust 'peer_thread_name' to be non-null. 42700fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom if (peer_thread_name.get() != NULL) { 428899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes SetThreadName(peer_thread_name->ToModifiedUtf8().c_str()); 42900fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom } 43061e019d291583029c01b61b93bea750f2b663c37Carl Shapiro} 43161e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 432899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughesvoid Thread::SetThreadName(const char* name) { 433899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes name_->assign(name); 434899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes ::art::SetThreadName(name); 435899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes Dbg::DdmSendThreadNotification(this, CHUNK_TYPE("THNM")); 436899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes} 437899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes 438be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughesvoid Thread::InitStackHwm() { 439e188419b971936086a188843378375f5ced13724Elliott Hughes void* stack_base; 440e188419b971936086a188843378375f5ced13724Elliott Hughes size_t stack_size; 441120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers GetThreadStack(pthread_self_, stack_base, stack_size); 44236ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 44336ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // TODO: include this in the thread dumps; potentially useful in SIGQUIT output? 444e188419b971936086a188843378375f5ced13724Elliott Hughes VLOG(threads) << StringPrintf("Native stack is at %p (%s)", stack_base, PrettySize(stack_size).c_str()); 445e188419b971936086a188843378375f5ced13724Elliott Hughes 446e188419b971936086a188843378375f5ced13724Elliott Hughes stack_begin_ = reinterpret_cast<byte*>(stack_base); 447e188419b971936086a188843378375f5ced13724Elliott Hughes stack_size_ = stack_size; 44836ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 449932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers if (stack_size_ <= kStackOverflowReservedBytes) { 4503d30d9b09c16542d41554aad9f46ec9109ba5cb5Elliott Hughes LOG(FATAL) << "Attempt to attach a thread with a too-small stack (" << stack_size_ << " bytes)"; 451be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 452449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes 453e188419b971936086a188843378375f5ced13724Elliott Hughes // TODO: move this into the Linux GetThreadStack implementation. 454e188419b971936086a188843378375f5ced13724Elliott Hughes#if !defined(__APPLE__) 45536ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // If we're the main thread, check whether we were run with an unlimited stack. In that case, 45636ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // glibc will have reported a 2GB stack for our 32-bit process, and our stack overflow detection 45736ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // will be broken because we'll die long before we get close to 2GB. 458120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers bool is_main_thread = (::art::GetTid() == getpid()); 459120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (is_main_thread) { 46036ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes rlimit stack_limit; 46136ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes if (getrlimit(RLIMIT_STACK, &stack_limit) == -1) { 46236ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes PLOG(FATAL) << "getrlimit(RLIMIT_STACK) failed"; 46336ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes } 46436ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes if (stack_limit.rlim_cur == RLIM_INFINITY) { 46536ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // Find the default stack size for new threads... 46636ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes pthread_attr_t default_attributes; 46736ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes size_t default_stack_size; 46836ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_init, (&default_attributes), "default stack size query"); 46936ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_getstacksize, (&default_attributes, &default_stack_size), 47036ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes "default stack size query"); 47136ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_destroy, (&default_attributes), "default stack size query"); 47236ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 47336ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // ...and use that as our limit. 47436ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes size_t old_stack_size = stack_size_; 47536ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes stack_size_ = default_stack_size; 47636ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes stack_begin_ += (old_stack_size - stack_size_); 477faf4ba01738400f418b45c4323aa9e8e6b6ba2a0Elliott Hughes VLOG(threads) << "Limiting unlimited stack (reported as " << PrettySize(old_stack_size) << ")" 478faf4ba01738400f418b45c4323aa9e8e6b6ba2a0Elliott Hughes << " to " << PrettySize(stack_size_) 479faf4ba01738400f418b45c4323aa9e8e6b6ba2a0Elliott Hughes << " with base " << reinterpret_cast<void*>(stack_begin_); 48036ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes } 48136ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes } 482e188419b971936086a188843378375f5ced13724Elliott Hughes#endif 48336ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 484932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // Set stack_end_ to the bottom of the stack saving space of stack overflows 485932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers ResetDefaultStackEnd(); 486449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes 487449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes // Sanity check. 488449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes int stack_variable; 489398f64b5805246765b699839b439e18c0dfbf2eeElliott Hughes CHECK_GT(&stack_variable, reinterpret_cast<void*>(stack_end_)); 490be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes} 491be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 49200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::ShortDump(std::ostream& os) const { 49300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers os << "Thread["; 49400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (GetThinLockId() != 0) { 49500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // If we're in kStarting, we won't have a thin lock id or tid yet. 49600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers os << GetThinLockId() 49700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << ",tid=" << GetTid() << ','; 498e0918556e7551de638870dcad3f2023f94f85a50Elliott Hughes } 499474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers os << GetState() 50000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << ",Thread*=" << this 501cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers << ",peer=" << opeer_ 50200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << ",\"" << *name_ << "\"" 50300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << "]"; 504d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes} 505d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 50600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::Dump(std::ostream& os) const { 50700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DumpState(os); 50800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DumpStack(os); 50900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 51000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 5112dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersmirror::String* Thread::GetThreadName(const ScopedObjectAccessUnchecked& soa) const { 5122dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Field* f = soa.DecodeField(WellKnownClasses::java_lang_Thread_name); 5132dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers return (opeer_ != NULL) ? reinterpret_cast<mirror::String*>(f->GetObject(opeer_)) : NULL; 514fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes} 515fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes 516ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughesvoid Thread::GetThreadName(std::string& name) const { 517ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes name.assign(*name_); 518ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes} 519ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes 520474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogersvoid Thread::AtomicSetFlag(ThreadFlag flag) { 52130e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers android_atomic_or(flag, &state_and_flags_.as_int); 522474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers} 523474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers 524474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogersvoid Thread::AtomicClearFlag(ThreadFlag flag) { 52530e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers android_atomic_and(-1 ^ flag, &state_and_flags_.as_int); 526474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers} 527474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers 52801ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers// Attempt to rectify locks so that we dump thread list with required locks before exiting. 52901ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogersstatic void UnsafeLogFatalForSuspendCount(Thread* self, Thread* thread) NO_THREAD_SAFETY_ANALYSIS { 530120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << *thread << " suspend count already zero."; 53101ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::thread_suspend_count_lock_->Unlock(self); 53201ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::mutator_lock_->IsSharedHeld(self)) { 53301ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::mutator_lock_->SharedTryLock(self); 53401ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::mutator_lock_->IsSharedHeld(self)) { 53501ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers LOG(WARNING) << "Dumping thread list without holding mutator_lock_"; 53601ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 53701ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 53801ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::thread_list_lock_->IsExclusiveHeld(self)) { 53901ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::thread_list_lock_->TryLock(self); 54001ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::thread_list_lock_->IsExclusiveHeld(self)) { 54101ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers LOG(WARNING) << "Dumping thread list without holding thread_list_lock_"; 54201ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 54301ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 54401ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers std::ostringstream ss; 54501ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Runtime::Current()->GetThreadList()->DumpLocked(ss); 546120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(FATAL) << ss.str(); 54701ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers} 54801ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers 54901ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogersvoid Thread::ModifySuspendCount(Thread* self, int delta, bool for_debugger) { 55000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DCHECK(delta == -1 || delta == +1 || delta == -debug_suspend_count_) 55100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << delta << " " << debug_suspend_count_ << " " << this; 55200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DCHECK_GE(suspend_count_, debug_suspend_count_) << this; 55301ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::thread_suspend_count_lock_->AssertHeld(self); 554cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (this != self && !IsSuspended()) { 555cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers Locks::thread_list_lock_->AssertHeld(self); 556cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers } 55701ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (UNLIKELY(delta < 0 && suspend_count_ <= 0)) { 55801ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers UnsafeLogFatalForSuspendCount(self, this); 55900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return; 56000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 56101ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers 56200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers suspend_count_ += delta; 56300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (for_debugger) { 56400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers debug_suspend_count_ += delta; 56500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 56601ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers 567474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers if (suspend_count_ == 0) { 568474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers AtomicClearFlag(kSuspendRequest); 569474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers } else { 570474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers AtomicSetFlag(kSuspendRequest); 571474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers } 57200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 57300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 5740e4627e593bc39f8e3d89c31f8977d55054c07ccMathieu Chartierbool Thread::RequestCheckpoint(Closure* function) { 575858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier CHECK(!ReadFlag(kCheckpointRequest)) << "Already have a pending checkpoint request"; 576858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier checkpoint_function_ = function; 577858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier union StateAndFlags old_state_and_flags = state_and_flags_; 578858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier // We must be runnable to request a checkpoint. 579858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier old_state_and_flags.as_struct.state = kRunnable; 580858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier union StateAndFlags new_state_and_flags = old_state_and_flags; 581858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier new_state_and_flags.as_struct.flags |= kCheckpointRequest; 582858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier int succeeded = android_atomic_cmpxchg(old_state_and_flags.as_int, new_state_and_flags.as_int, 583858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier &state_and_flags_.as_int); 584858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier return succeeded == 0; 585858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier} 586858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier 58700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::FullSuspendCheck() { 58800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers VLOG(threads) << this << " self-suspending"; 58900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Make thread appear suspended to other threads, release mutator_lock_. 59000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers TransitionFromRunnableToSuspended(kSuspended); 59100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Transition back to runnable noting requests to suspend, re-acquire share on mutator_lock_. 59200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers TransitionFromSuspendedToRunnable(); 59300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers VLOG(threads) << this << " self-reviving"; 59400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 59500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 596f327e07b37e349b1ec5eaad6dc294a9b7a081d20Elliott HughesThread* Thread::SuspendForDebugger(jobject peer, bool request_suspension, bool* timed_out) { 59700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers static const useconds_t kTimeoutUs = 30 * 1000000; // 30s. 59800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers useconds_t total_delay_us = 0; 59900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers useconds_t delay_us = 0; 60000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers bool did_suspend_request = false; 601f327e07b37e349b1ec5eaad6dc294a9b7a081d20Elliott Hughes *timed_out = false; 60200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers while (true) { 60300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Thread* thread; 60400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers { 60500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(Thread::Current()); 60681d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(soa.Self(), *Locks::thread_list_lock_); 60700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers thread = Thread::FromManagedThread(soa, peer); 60800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (thread == NULL) { 60900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(WARNING) << "No such thread for suspend: " << peer; 61000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return NULL; 61100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 61200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers { 61381d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(soa.Self(), *Locks::thread_suspend_count_lock_); 61400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (request_suspension) { 61501ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers thread->ModifySuspendCount(soa.Self(), +1, true /* for_debugger */); 61600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers request_suspension = false; 61700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers did_suspend_request = true; 61800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 61900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // IsSuspended on the current thread will fail as the current thread is changed into 62000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Runnable above. As the suspend count is now raised if this is the current thread 621cb69306eefc1e6e42b3eaec8b479a268222b01b6Elliott Hughes // it will self suspend on transition to Runnable, making it hard to work with. It's simpler 62200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // to just explicitly handle the current thread in the callers to this code. 623cb69306eefc1e6e42b3eaec8b479a268222b01b6Elliott Hughes CHECK_NE(thread, soa.Self()) << "Attempt to suspend the current thread for the debugger"; 62400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // If thread is suspended (perhaps it was already not Runnable but didn't have a suspend 62500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // count, or else we've waited and it has self suspended) or is the current thread, we're 62600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // done. 62700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (thread->IsSuspended()) { 62800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return thread; 62900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 63000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (total_delay_us >= kTimeoutUs) { 63100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(ERROR) << "Thread suspension timed out: " << peer; 63200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (did_suspend_request) { 63301ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers thread->ModifySuspendCount(soa.Self(), -1, true /* for_debugger */); 63400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 635f327e07b37e349b1ec5eaad6dc294a9b7a081d20Elliott Hughes *timed_out = true; 63600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return NULL; 63700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 63800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 63900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Release locks and come out of runnable state. 64000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 6410f827169742aad6209d830db773a101849c32a83Elliott Hughes for (int i = kLockLevelCount - 1; i >= 0; --i) { 64281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers BaseMutex* held_mutex = Thread::Current()->GetHeldMutex(static_cast<LockLevel>(i)); 64300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (held_mutex != NULL) { 64400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(FATAL) << "Holding " << held_mutex->GetName() 64500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << " while sleeping for thread suspension"; 64600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 64700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 64800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers { 64900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers useconds_t new_delay_us = delay_us * 2; 65000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_GE(new_delay_us, delay_us); 65100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (new_delay_us < 500000) { // Don't allow sleeping to be more than 0.5s. 65200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers delay_us = new_delay_us; 65300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 65400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 65500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (delay_us == 0) { 65600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers sched_yield(); 65700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Default to 1 milliseconds (note that this gets multiplied by 2 before the first sleep). 65800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers delay_us = 500; 65900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } else { 66000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers usleep(delay_us); 66100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers total_delay_us += delay_us; 66200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 66300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 66400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 66500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 666abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughesvoid Thread::DumpState(std::ostream& os, const Thread* thread, pid_t tid) { 667d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes std::string group_name; 668d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes int priority; 669d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes bool is_daemon = false; 67081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers Thread* self = Thread::Current(); 671d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 672cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (thread != NULL && thread->opeer_ != NULL) { 673cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedObjectAccessUnchecked soa(self); 674cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers priority = soa.DecodeField(WellKnownClasses::java_lang_Thread_priority)->GetInt(thread->opeer_); 675cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers is_daemon = soa.DecodeField(WellKnownClasses::java_lang_Thread_daemon)->GetBoolean(thread->opeer_); 676d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 6772dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* thread_group = 678cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers soa.DecodeField(WellKnownClasses::java_lang_Thread_group)->GetObject(thread->opeer_); 679120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 680d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes if (thread_group != NULL) { 6812dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Field* group_name_field = 6822dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers soa.DecodeField(WellKnownClasses::java_lang_ThreadGroup_name); 6832dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::String* group_name_string = 6842dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers reinterpret_cast<mirror::String*>(group_name_field->GetObject(thread_group)); 685d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes group_name = (group_name_string != NULL) ? group_name_string->ToModifiedUtf8() : "<null>"; 686d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 687d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } else { 688d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes priority = GetNativePriority(); 689dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes } 690d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 691abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes std::string scheduler_group_name(GetSchedulerGroupName(tid)); 6921bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughes if (scheduler_group_name.empty()) { 6931bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughes scheduler_group_name = "default"; 694d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 695d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 696abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (thread != NULL) { 697abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << '"' << *thread->name_ << '"'; 698abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (is_daemon) { 699abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " daemon"; 700abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } 701abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " prio=" << priority 702abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " tid=" << thread->GetThinLockId() 70380537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes << " " << thread->GetState(); 70480537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes if (thread->IsStillStarting()) { 70580537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes os << " (still starting up)"; 70680537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes } 70780537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes os << "\n"; 708abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } else { 709289be85116aaf7c48413858b5d0448868b4e61f3Elliott Hughes os << '"' << ::art::GetThreadName(tid) << '"' 710abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " prio=" << priority 711abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " (not attached)\n"; 712abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } 713abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes 714abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (thread != NULL) { 71581d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(self, *Locks::thread_suspend_count_lock_); 716abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " | group=\"" << group_name << "\"" 717abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " sCount=" << thread->suspend_count_ 718abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " dsCount=" << thread->debug_suspend_count_ 719cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers << " obj=" << reinterpret_cast<void*>(thread->opeer_) 720abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " self=" << reinterpret_cast<const void*>(thread) << "\n"; 721d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 7220d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes 723abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " | sysTid=" << tid 724abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " nice=" << getpriority(PRIO_PROCESS, tid) 7250d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes << " cgrp=" << scheduler_group_name; 7260d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes if (thread != NULL) { 7270d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes int policy; 7280d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes sched_param sp; 7290d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes CHECK_PTHREAD_CALL(pthread_getschedparam, (thread->pthread_self_, &policy, &sp), __FUNCTION__); 7300d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes os << " sched=" << policy << "/" << sp.sched_priority 7310d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes << " handle=" << reinterpret_cast<void*>(thread->pthread_self_); 7320d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes } 7330d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes os << "\n"; 734d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 735d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes // Grab the scheduler stats for this thread. 736d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes std::string scheduler_stats; 737abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (ReadFileToString(StringPrintf("/proc/self/task/%d/schedstat", tid), &scheduler_stats)) { 738d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes scheduler_stats.resize(scheduler_stats.size() - 1); // Lose the trailing '\n'. 739d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } else { 740d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes scheduler_stats = "0 0 0"; 741d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 742d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 743ba0b9c55adce3f533845ab1b25c552589e5b4118Elliott Hughes char native_thread_state = '?'; 744d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int utime = 0; 745d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int stime = 0; 746d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int task_cpu = 0; 747ba0b9c55adce3f533845ab1b25c552589e5b4118Elliott Hughes GetTaskStats(tid, native_thread_state, utime, stime, task_cpu); 748d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 749ba0b9c55adce3f533845ab1b25c552589e5b4118Elliott Hughes os << " | state=" << native_thread_state 750ba0b9c55adce3f533845ab1b25c552589e5b4118Elliott Hughes << " schedstat=( " << scheduler_stats << " )" 751d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes << " utm=" << utime 752d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes << " stm=" << stime 753abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " core=" << task_cpu 754abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " HZ=" << sysconf(_SC_CLK_TCK) << "\n"; 755abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (thread != NULL) { 756abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " | stack=" << reinterpret_cast<void*>(thread->stack_begin_) << "-" << reinterpret_cast<void*>(thread->stack_end_) 757abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " stackSize=" << PrettySize(thread->stack_size_) << "\n"; 758abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } 759abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes} 760abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes 761abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughesvoid Thread::DumpState(std::ostream& os) const { 762abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes Thread::DumpState(os, this, GetTid()); 763a09576416788b916095739e43a16917e7948f3a4Elliott Hughes} 764a09576416788b916095739e43a16917e7948f3a4Elliott Hughes 7650399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersstruct StackDumpVisitor : public StackVisitor { 7667a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers StackDumpVisitor(std::ostream& os, Thread* thread, Context* context, bool can_allocate) 767b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 7687a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers : StackVisitor(thread, context), os(os), thread(thread), can_allocate(can_allocate), 76908fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes last_method(NULL), last_line_number(0), repetition_count(0), frame_count(0) { 770d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 771d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 772bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers virtual ~StackDumpVisitor() { 773e85d2e924953f1a13b7152edba1c13853e6f3a86Elliott Hughes if (frame_count == 0) { 774e85d2e924953f1a13b7152edba1c13853e6f3a86Elliott Hughes os << " (no managed stack frames)\n"; 775e85d2e924953f1a13b7152edba1c13853e6f3a86Elliott Hughes } 776d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 777d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 778b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 7792dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod* m = GetMethod(); 7800399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (m->IsRuntimeMethod()) { 781530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 7829086572fa809d1a19d886b467e4da3ce42016982Ian Rogers } 78328ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers const int kMaxRepetition = 3; 7842dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Class* c = m->GetDeclaringClass(); 7852dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers const mirror::DexCache* dex_cache = c->GetDexCache(); 786b861dc0077342d5a1d2dd9cade3f6990620778ecIan Rogers int line_number = -1; 787b861dc0077342d5a1d2dd9cade3f6990620778ecIan Rogers if (dex_cache != NULL) { // be tolerant of bad input 7884445a7e3398a6143939168097a3aa275b734504dIan Rogers const DexFile& dex_file = *dex_cache->GetDexFile(); 7890399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers line_number = dex_file.GetLineNumFromPC(m, GetDexPc()); 790b861dc0077342d5a1d2dd9cade3f6990620778ecIan Rogers } 79128ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (line_number == last_line_number && last_method == m) { 79228ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers repetition_count++; 793d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } else { 79428ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (repetition_count >= kMaxRepetition) { 79528ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << " ... repeated " << (repetition_count - kMaxRepetition) << " times\n"; 79628ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 79728ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers repetition_count = 0; 79828ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers last_line_number = line_number; 79928ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers last_method = m; 80028ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 80128ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (repetition_count < kMaxRepetition) { 80228ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << " at " << PrettyMethod(m, false); 80328ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (m->IsNative()) { 80428ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << "(Native method)"; 80528ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } else { 8066d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers mh.ChangeMethod(m); 8076d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers const char* source_file(mh.GetDeclaringClassSourceFile()); 8086d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers os << "(" << (source_file != NULL ? source_file : "unavailable") 80928ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers << ":" << line_number << ")"; 81028ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 81128ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << "\n"; 81208fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes if (frame_count == 0) { 81308fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes Monitor::DescribeWait(os, thread); 81408fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes } 81508fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes if (can_allocate) { 8164993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes Monitor::VisitLocks(this, DumpLockedObject, &os); 81708fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes } 818d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 8198e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes 82008fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes ++frame_count; 821530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 822d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 8234993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes 8242dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers static void DumpLockedObject(mirror::Object* o, void* context) 8254993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 8264993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes std::ostream& os = *reinterpret_cast<std::ostream*>(context); 8274993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes os << " - locked <" << o << "> (a " << PrettyTypeOf(o) << ")\n"; 8284993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes } 8294993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes 83008fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes std::ostream& os; 83108fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes const Thread* thread; 83208fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes bool can_allocate; 8336d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers MethodHelper mh; 8342dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod* last_method; 83528ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers int last_line_number; 83628ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers int repetition_count; 8378e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes int frame_count; 838d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes}; 839d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 840aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughesstatic bool ShouldShowNativeStack(const Thread* thread) { 841aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes ThreadState state = thread->GetState(); 842aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes 843aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // In native code somewhere in the VM (one of the kWaitingFor* states)? That's interesting. 844aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes if (state > kWaiting && state < kStarting) { 845aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes return true; 846aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes } 847aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes 848aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // In an Object.wait variant or Thread.sleep? That's not interesting. 849aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes if (state == kTimedWaiting || state == kSleeping || state == kWaiting) { 850aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes return false; 851aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes } 852aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes 853aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // In some other native method? That's interesting. 854aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // We don't just check kNative because native methods will be in state kSuspended if they're 855aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // calling back into the VM, or kBlocked if they're blocked on a monitor, or one of the 856aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // thread-startup states if it's early enough in their life cycle (http://b/7432159). 85762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::AbstractMethod* current_method = thread->GetCurrentMethod(NULL); 858aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes return current_method != NULL && current_method->IsNative(); 859aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes} 860aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes 861d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughesvoid Thread::DumpStack(std::ostream& os) const { 862f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers if (this == Thread::Current() || IsSuspended()) { 863f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers // If we're currently in native code, dump that stack before dumping the managed stack. 864f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers if (ShouldShowNativeStack(this)) { 865f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers DumpKernelStack(os, GetTid(), " kernel: ", false); 866f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers DumpNativeStack(os, GetTid(), " native: ", false); 867f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers } 868f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers UniquePtr<Context> context(Context::Create()); 869f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers StackDumpVisitor dumper(os, const_cast<Thread*>(this), context.get(), !throwing_OutOfMemoryError_); 870f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers dumper.WalkStack(); 871f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers } else { 872f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers os << "Not able to dump stack of thread that isn't suspended"; 873f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers } 874e27955ca3ca960928d4dbd6cb79711fce06950b3Elliott Hughes} 875e27955ca3ca960928d4dbd6cb79711fce06950b3Elliott Hughes 876be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughesvoid Thread::ThreadExitCallback(void* arg) { 877be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes Thread* self = reinterpret_cast<Thread*>(arg); 8786a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes if (self->thread_exit_check_count_ == 0) { 8796a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes LOG(WARNING) << "Native thread exiting without having called DetachCurrentThread (maybe it's going to use a pthread_key_create destructor?): " << *self; 8806a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes CHECK_PTHREAD_CALL(pthread_setspecific, (Thread::pthread_key_self_, self), "reattach self"); 8816a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes self->thread_exit_check_count_ = 1; 8826a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes } else { 8836a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes LOG(FATAL) << "Native thread exited without calling DetachCurrentThread: " << *self; 8846a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes } 885b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro} 886b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 887be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughesvoid Thread::Startup() { 88800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers { 88950b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers MutexLock mu(Thread::Current(), *Locks::thread_suspend_count_lock_); // Keep GCC happy. 890c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers resume_cond_ = new ConditionVariable("Thread resumption condition variable", 891c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers *Locks::thread_suspend_count_lock_); 89200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 89300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 894b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro // Allocate a TLS slot. 8958d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes CHECK_PTHREAD_CALL(pthread_key_create, (&Thread::pthread_key_self_, Thread::ThreadExitCallback), "self key"); 896b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 897b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro // Double-check the TLS slot allocation. 898b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro if (pthread_getspecific(pthread_key_self_) != NULL) { 8993d30d9b09c16542d41554aad9f46ec9109ba5cb5Elliott Hughes LOG(FATAL) << "Newly-created pthread TLS slot is not NULL"; 900b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro } 901038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes} 902038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes 903038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughesvoid Thread::FinishStartup() { 904365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Runtime* runtime = Runtime::Current(); 905365c10235438607541fa2259a5fec48061b90bd8Ian Rogers CHECK(runtime->IsStarted()); 906b82b6878fb000d4731063b1bf15c39ff7c50b61fBrian Carlstrom 90701158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Finish attaching the main thread. 90800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(Thread::Current()); 909365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Thread::Current()->CreatePeer("main", false, runtime->GetMainThreadGroup()); 9109a6bae896a2f003d7216603bf29771d105c10ca4Jesse Wilson 911af8d15a3267343dec135cc6df1db740c0a5c7b52Elliott Hughes Runtime::Current()->GetClassLinker()->RunRootClinits(); 912b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro} 913b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 914c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughesvoid Thread::Shutdown() { 9158d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes CHECK_PTHREAD_CALL(pthread_key_delete, (Thread::pthread_key_self_), "self key"); 916c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes} 917c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes 91852673ffae0025d86f4023735581f19ebcc477487Ian RogersThread::Thread(bool daemon) 9190399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers : suspend_count_(0), 9200399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers card_table_(NULL), 9210399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers exception_(NULL), 9220399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers stack_end_(NULL), 9230399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers managed_stack_(), 9240399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers jni_env_(NULL), 9250399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers self_(NULL), 926cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers opeer_(NULL), 927cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers jpeer_(NULL), 9280399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers stack_begin_(NULL), 9290399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers stack_size_(0), 9300399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers thin_lock_id_(0), 9310399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers tid_(0), 932e62934d85fbc2d935afdad57eeade39ecbd7440aElliott Hughes wait_mutex_(new Mutex("a thread wait mutex")), 933c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers wait_cond_(new ConditionVariable("a thread wait condition variable", *wait_mutex_)), 9348daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes wait_monitor_(NULL), 9358daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes interrupted_(false), 936dc33ad5db2dc6ed9b76d5219888626a604debbe1Elliott Hughes wait_next_(NULL), 9378e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes monitor_enter_object_(NULL), 938dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes top_sirt_(NULL), 939dc33ad5db2dc6ed9b76d5219888626a604debbe1Elliott Hughes runtime_(NULL), 94085d1545e985ac689db4bad7849880e843707c862Elliott Hughes class_loader_override_(NULL), 941418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes long_jump_context_(NULL), 942726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes throwing_OutOfMemoryError_(false), 9430399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers debug_suspend_count_(0), 944e343b76af81a005ef64f5e75a555389fd9147dabjeffhao debug_invoke_req_(new DebugInvokeReq), 94562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers deoptimization_shadow_frame_(NULL), 94662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers instrumentation_stack_(new std::deque<instrumentation::InstrumentationStackFrame>), 9470399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers name_(new std::string(kThreadNameDuringStartup)), 94852673ffae0025d86f4023735581f19ebcc477487Ian Rogers daemon_(daemon), 94900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers pthread_self_(0), 95052673ffae0025d86f4023735581f19ebcc477487Ian Rogers no_thread_suspension_(0), 9516a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes last_no_thread_suspension_cause_(NULL), 952858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier checkpoint_function_(0), 9536a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes thread_exit_check_count_(0) { 954f5a7a476e7ea63e094ff0f011dccc170607e6f6bElliott Hughes CHECK_EQ((sizeof(Thread) % 4), 0U) << sizeof(Thread); 95530e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers state_and_flags_.as_struct.flags = 0; 95630e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers state_and_flags_.as_struct.state = kNative; 957ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes memset(&held_mutexes_[0], 0, sizeof(held_mutexes_)); 958dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes} 959dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes 9607dc5166ea740359d381097a7ab382c1dd404055fElliott Hughesbool Thread::IsStillStarting() const { 9617dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // You might think you can check whether the state is kStarting, but for much of thread startup, 96280537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes // the thread is in kNative; it might also be in kVmWait. 9637dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // You might think you can check whether the peer is NULL, but the peer is actually created and 9647dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // assigned fairly early on, and needs to be. 9657dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // It turns out that the last thing to change is the thread name; that's a good proxy for "has 9667dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // this thread _ever_ entered kRunnable". 96780537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes return (jpeer_ == NULL && opeer_ == NULL) || (*name_ == kThreadNameDuringStartup); 9687dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes} 9697dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes 97000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::AssertNoPendingException() const { 97100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (UNLIKELY(IsExceptionPending())) { 97200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(Thread::Current()); 97362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Throwable* exception = GetException(NULL); 97400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(FATAL) << "No pending exception expected: " << exception->Dump(); 97500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 97600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 97700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 9782dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersstatic void MonitorExitVisitor(const mirror::Object* object, void* arg) NO_THREAD_SAFETY_ANALYSIS { 97900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Thread* self = reinterpret_cast<Thread*>(arg); 9802dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* entered_monitor = const_cast<mirror::Object*>(object); 98100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (self->HoldsLock(entered_monitor)) { 98200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(WARNING) << "Calling MonitorExit on object " 98300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << object << " (" << PrettyTypeOf(object) << ")" 98400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << " left locked by native thread " 98500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << *Thread::Current() << " which is detaching"; 98600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers entered_monitor->MonitorExit(self); 98700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 98802b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes} 98902b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 990c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughesvoid Thread::Destroy() { 991120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self = this; 992120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers DCHECK_EQ(self, Thread::Current()); 99302b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 994cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (opeer_ != NULL) { 995cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedObjectAccess soa(self); 996120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // We may need to call user-supplied managed code, do this before final clean-up. 997cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers HandleUncaughtExceptions(soa); 998cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers RemoveFromThreadGroup(soa); 999534da072d3db3beecbd74e5aa23d630d73695f2cElliott Hughes 100029f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes // this.vmData = 0; 1001cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers soa.DecodeField(WellKnownClasses::java_lang_Thread_vmData)->SetInt(opeer_, 0); 1002cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers Dbg::PostThreadDeath(self); 100302b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 1004cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers // Thread.join() is implemented as an Object.wait() on the Thread.lock object. Signal anyone 1005cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers // who is waiting. 10062dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* lock = 10072dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers soa.DecodeField(WellKnownClasses::java_lang_Thread_lock)->GetObject(opeer_); 1008038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes // (This conditional is only needed for tests, where Thread.lock won't have been set.) 1009cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (lock != NULL) { 101005f3057d6a4d23d712092ccd36a531590bff323bIan Rogers ObjectLock locker(self, lock); 101105f3057d6a4d23d712092ccd36a531590bff323bIan Rogers locker.Notify(); 10125f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 10135f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 1014120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 1015120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // On thread detach, all monitors entered with JNI MonitorEnter are automatically exited. 1016120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (jni_env_ != NULL) { 1017120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->monitors.VisitRoots(MonitorExitVisitor, self); 1018120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 1019c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes} 102002b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 1021c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott HughesThread::~Thread() { 1022cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (jni_env_ != NULL && jpeer_ != NULL) { 1023dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier // If pthread_create fails we don't have a jni env here. 1024cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers jni_env_->DeleteGlobalRef(jpeer_); 1025cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers jpeer_ = NULL; 1026dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier } 1027cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers opeer_ = NULL; 1028dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier 1029c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes delete jni_env_; 103002b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes jni_env_ = NULL; 103102b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 1032dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier CHECK_NE(GetState(), kRunnable); 1033dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier // We may be deleting a still born thread. 1034dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier SetStateUnsafe(kTerminated); 103585d1545e985ac689db4bad7849880e843707c862Elliott Hughes 103685d1545e985ac689db4bad7849880e843707c862Elliott Hughes delete wait_cond_; 103785d1545e985ac689db4bad7849880e843707c862Elliott Hughes delete wait_mutex_; 103885d1545e985ac689db4bad7849880e843707c862Elliott Hughes 1039c928de90ad22ecdf83c18a07008409595f13d3b1Ian Rogers if (long_jump_context_ != NULL) { 1040c928de90ad22ecdf83c18a07008409595f13d3b1Ian Rogers delete long_jump_context_; 1041c928de90ad22ecdf83c18a07008409595f13d3b1Ian Rogers } 1042475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes 1043475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes delete debug_invoke_req_; 1044725a957985171d712d5c048cc3d00ff14968784bjeffhao delete instrumentation_stack_; 1045899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes delete name_; 1046d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes 1047d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes TearDownAlternateSignalStack(); 1048c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes} 1049c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes 1050cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogersvoid Thread::HandleUncaughtExceptions(ScopedObjectAccess& soa) { 1051accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes if (!IsExceptionPending()) { 1052accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes return; 1053accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes } 1054cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedLocalRef<jobject> peer(jni_env_, soa.AddLocalReference<jobject>(opeer_)); 1055cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedThreadStateChange tsc(this, kNative); 1056120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 1057accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Get and clear the exception. 1058120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedLocalRef<jthrowable> exception(jni_env_, jni_env_->ExceptionOccurred()); 1059120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->ExceptionClear(); 1060accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1061accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // If the thread has its own handler, use that. 1062120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedLocalRef<jobject> handler(jni_env_, 1063cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers jni_env_->GetObjectField(peer.get(), 1064120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers WellKnownClasses::java_lang_Thread_uncaughtHandler)); 1065120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (handler.get() == NULL) { 1066accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Otherwise use the thread group's default handler. 1067cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers handler.reset(jni_env_->GetObjectField(peer.get(), WellKnownClasses::java_lang_Thread_group)); 1068accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes } 1069accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1070accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Call the handler. 1071120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->CallVoidMethod(handler.get(), 1072120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers WellKnownClasses::java_lang_Thread$UncaughtExceptionHandler_uncaughtException, 1073cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers peer.get(), exception.get()); 1074accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1075accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // If the handler threw, clear that exception too. 1076120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->ExceptionClear(); 1077a215526d5c789cbef0f81a1f9aba22541a841ccaElliott Hughes} 1078a215526d5c789cbef0f81a1f9aba22541a841ccaElliott Hughes 1079cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogersvoid Thread::RemoveFromThreadGroup(ScopedObjectAccess& soa) { 10804514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom // this.group.removeThread(this); 10814514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom // group can be null if we're in the compiler or a test. 10822dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* ogroup = soa.DecodeField(WellKnownClasses::java_lang_Thread_group)->GetObject(opeer_); 1083cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (ogroup != NULL) { 1084cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedLocalRef<jobject> group(soa.Env(), soa.AddLocalReference<jobject>(ogroup)); 1085cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedLocalRef<jobject> peer(soa.Env(), soa.AddLocalReference<jobject>(opeer_)); 1086cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedThreadStateChange tsc(soa.Self(), kNative); 1087120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->CallVoidMethod(group.get(), WellKnownClasses::java_lang_ThreadGroup_removeThread, 1088cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers peer.get()); 10894514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom } 10904514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom} 1091accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1092408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogerssize_t Thread::NumSirtReferences() { 1093a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers size_t count = 0; 109440381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom for (StackIndirectReferenceTable* cur = top_sirt_; cur; cur = cur->GetLink()) { 1095a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers count += cur->NumberOfReferences(); 1096a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers } 1097a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers return count; 1098a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers} 1099a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers 1100cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogersbool Thread::SirtContains(jobject obj) const { 11012dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object** sirt_entry = reinterpret_cast<mirror::Object**>(obj); 110240381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom for (StackIndirectReferenceTable* cur = top_sirt_; cur; cur = cur->GetLink()) { 110340381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom if (cur->Contains(sirt_entry)) { 1104a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers return true; 1105a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers } 1106a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers } 11070399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // JNI code invoked from portable code uses shadow frames rather than the SIRT. 11080399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return managed_stack_.ShadowFramesContain(sirt_entry); 110928f1a147d77ec772db98bed890b50a9ddcff2365TDYa} 111028f1a147d77ec772db98bed890b50a9ddcff2365TDYa 11112dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersvoid Thread::SirtVisitRoots(RootVisitor* visitor, void* arg) { 111240381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom for (StackIndirectReferenceTable* cur = top_sirt_; cur; cur = cur->GetLink()) { 11138dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao size_t num_refs = cur->NumberOfReferences(); 11148dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao for (size_t j = 0; j < num_refs; j++) { 11152dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* object = cur->GetReference(j); 11165e73f9c8990819054f8e0a60061ee8beff1e024aBrian Carlstrom if (object != NULL) { 11175e73f9c8990819054f8e0a60061ee8beff1e024aBrian Carlstrom visitor(object, arg); 11185e73f9c8990819054f8e0a60061ee8beff1e024aBrian Carlstrom } 11198dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao } 11208dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao } 11218dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao} 11228dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao 11232dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersmirror::Object* Thread::DecodeJObject(jobject obj) const { 112481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers Locks::mutator_lock_->AssertSharedHeld(this); 1125408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers if (obj == NULL) { 1126408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers return NULL; 1127408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1128408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers IndirectRef ref = reinterpret_cast<IndirectRef>(obj); 1129408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers IndirectRefKind kind = GetIndirectRefKind(ref); 11302dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* result; 11314f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers // The "kinds" below are sorted by the frequency we expect to encounter them. 11324f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (kind == kLocal) { 11334f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers IndirectReferenceTable& locals = jni_env_->locals; 11344f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers result = const_cast<mirror::Object*>(locals.Get(ref)); 11354f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers } else if (kind == kSirtOrInvalid) { 1136408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // TODO: make stack indirect reference table lookup more efficient 1137408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Check if this is a local reference in the SIRT 11384f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (LIKELY(SirtContains(obj))) { 11392dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers result = *reinterpret_cast<mirror::Object**>(obj); // Read from SIRT 1140c2dc62d1c9241dfe880a81698713c314b13aa63fElliott Hughes } else if (Runtime::Current()->GetJavaVM()->work_around_app_jni_bugs) { 1141408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Assume an invalid local reference is actually a direct pointer. 11422dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers result = reinterpret_cast<mirror::Object*>(obj); 1143408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } else { 1144a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes result = kInvalidIndirectRefObject; 1145408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 11464f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers } else if (kind == kGlobal) { 11474f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers JavaVMExt* vm = Runtime::Current()->GetJavaVM(); 11484f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers IndirectReferenceTable& globals = vm->globals; 11494f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers MutexLock mu(const_cast<Thread*>(this), vm->globals_lock); 11504f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers result = const_cast<mirror::Object*>(globals.Get(ref)); 11514f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers } else { 11524f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers DCHECK_EQ(kind, kWeakGlobal); 11534f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers JavaVMExt* vm = Runtime::Current()->GetJavaVM(); 11544f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers IndirectReferenceTable& weak_globals = vm->weak_globals; 11554f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers MutexLock mu(const_cast<Thread*>(this), vm->weak_globals_lock); 11564f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers result = const_cast<mirror::Object*>(weak_globals.Get(ref)); 11574f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (result == kClearedJniWeakGlobal) { 11584f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers // This is a special case where it's okay to return NULL. 11594f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers return NULL; 11604f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers } 1161408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1162408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers 11634f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (UNLIKELY(result == NULL)) { 11643f6635a2c84d645002f651c312d53f8348646c1fElliott Hughes JniAbortF(NULL, "use of deleted %s %p", ToStr<IndirectRefKind>(kind).c_str(), obj); 1165a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes } else { 11664f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (kIsDebugBuild && (result != kInvalidIndirectRefObject)) { 1167b3bd5f07884f5a1f2b84224363b1372d7c28d447Elliott Hughes Runtime::Current()->GetHeap()->VerifyObject(result); 1168a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes } 1169408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1170408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers return result; 1171408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers} 1172408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers 117381d425b0b232962441616f8b14f73620bffef5e5Ian Rogers// Implements java.lang.Thread.interrupted. 117481d425b0b232962441616f8b14f73620bffef5e5Ian Rogersbool Thread::Interrupted() { 117550b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers MutexLock mu(Thread::Current(), *wait_mutex_); 117681d425b0b232962441616f8b14f73620bffef5e5Ian Rogers bool interrupted = interrupted_; 117781d425b0b232962441616f8b14f73620bffef5e5Ian Rogers interrupted_ = false; 117881d425b0b232962441616f8b14f73620bffef5e5Ian Rogers return interrupted; 117981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 118081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 118181d425b0b232962441616f8b14f73620bffef5e5Ian Rogers// Implements java.lang.Thread.isInterrupted. 118281d425b0b232962441616f8b14f73620bffef5e5Ian Rogersbool Thread::IsInterrupted() { 118350b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers MutexLock mu(Thread::Current(), *wait_mutex_); 118481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers return interrupted_; 118581d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 118681d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 118781d425b0b232962441616f8b14f73620bffef5e5Ian Rogersvoid Thread::Interrupt() { 1188c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers Thread* self = Thread::Current(); 1189c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers MutexLock mu(self, *wait_mutex_); 119081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers if (interrupted_) { 119181d425b0b232962441616f8b14f73620bffef5e5Ian Rogers return; 119281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers } 119381d425b0b232962441616f8b14f73620bffef5e5Ian Rogers interrupted_ = true; 1194c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers NotifyLocked(self); 119581d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 119681d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 119781d425b0b232962441616f8b14f73620bffef5e5Ian Rogersvoid Thread::Notify() { 1198c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers Thread* self = Thread::Current(); 1199c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers MutexLock mu(self, *wait_mutex_); 1200c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers NotifyLocked(self); 120181d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 120281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 1203c604d731730b43231f63040c8db1d58304da0cf3Ian Rogersvoid Thread::NotifyLocked(Thread* self) { 120481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers if (wait_monitor_ != NULL) { 1205c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers wait_cond_->Signal(self); 120681d425b0b232962441616f8b14f73620bffef5e5Ian Rogers } 120781d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 120881d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 12090399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass CountStackDepthVisitor : public StackVisitor { 12109b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao public: 12117a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers CountStackDepthVisitor(Thread* thread) 1212b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 12137a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers : StackVisitor(thread, NULL), 121408fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes depth_(0), skip_depth_(0), skipping_(true) {} 1215d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 1216b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 121729f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes // We want to skip frames up to and including the exception's constructor. 12189086572fa809d1a19d886b467e4da3ce42016982Ian Rogers // Note we also skip the frame if it doesn't have a method (namely the callee 12199086572fa809d1a19d886b467e4da3ce42016982Ian Rogers // save frame) 12202dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod* m = GetMethod(); 12210399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (skipping_ && !m->IsRuntimeMethod() && 12222dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers !mirror::Throwable::GetJavaLangThrowable()->IsAssignableFrom(m->GetDeclaringClass())) { 122329f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes skipping_ = false; 122429f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 122529f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes if (!skipping_) { 12260399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (!m->IsRuntimeMethod()) { // Ignore runtime frames (in particular callee save). 12276b0870dfaaa2e69a900ad7ed88e4e1d3697445aaIan Rogers ++depth_; 12286b0870dfaaa2e69a900ad7ed88e4e1d3697445aaIan Rogers } 122929f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } else { 123029f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes ++skip_depth_; 123129f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 1232530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 12339b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 12349b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 12359b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao int GetDepth() const { 1236aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers return depth_; 12379b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 12389b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 123929f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes int GetSkipDepth() const { 124029f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes return skip_depth_; 124129f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 124229f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes 12439b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao private: 1244aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers uint32_t depth_; 124529f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes uint32_t skip_depth_; 124629f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes bool skipping_; 12479b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao}; 12489b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 12490399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass BuildInternalStackTraceVisitor : public StackVisitor { 12509b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao public: 12517a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers explicit BuildInternalStackTraceVisitor(Thread* self, Thread* thread, int skip_depth) 12527a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers : StackVisitor(thread, NULL), self_(self), 125308fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes skip_depth_(skip_depth), count_(0), dex_pc_trace_(NULL), method_trace_(NULL) {} 1254283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers 12551f5393447b9f45be7918042d9ee7b521376de866Ian Rogers bool Init(int depth) 1256b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1257aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Allocate method trace with an extra slot that will hold the PC trace 12582dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::ObjectArray<mirror::Object> > 12591f5393447b9f45be7918042d9ee7b521376de866Ian Rogers method_trace(self_, 12602dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers Runtime::Current()->GetClassLinker()->AllocObjectArray<mirror::Object>(self_, 12612dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers depth + 1)); 12620399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (method_trace.get() == NULL) { 1263283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers return false; 1264726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes } 12652dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::IntArray* dex_pc_trace = mirror::IntArray::Alloc(self_, depth); 12660399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (dex_pc_trace == NULL) { 1267283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers return false; 1268726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes } 1269aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Save PC trace in last element of method trace, also places it into the 1270aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // object graph. 12710399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers method_trace->Set(depth, dex_pc_trace); 12720399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Set the Object*s and assert that no thread suspension is now possible. 127352673ffae0025d86f4023735581f19ebcc477487Ian Rogers const char* last_no_suspend_cause = 12741f5393447b9f45be7918042d9ee7b521376de866Ian Rogers self_->StartAssertNoThreadSuspension("Building internal stack trace"); 127552673ffae0025d86f4023735581f19ebcc477487Ian Rogers CHECK(last_no_suspend_cause == NULL) << last_no_suspend_cause; 12760399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers method_trace_ = method_trace.get(); 12770399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers dex_pc_trace_ = dex_pc_trace; 1278283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers return true; 12799b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 12809b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 12810399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers virtual ~BuildInternalStackTraceVisitor() { 128252673ffae0025d86f4023735581f19ebcc477487Ian Rogers if (method_trace_ != NULL) { 12831f5393447b9f45be7918042d9ee7b521376de866Ian Rogers self_->EndAssertNoThreadSuspension(NULL); 128452673ffae0025d86f4023735581f19ebcc477487Ian Rogers } 12850399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 12869b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 1287b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 12880399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (method_trace_ == NULL || dex_pc_trace_ == NULL) { 1289530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; // We're probably trying to fillInStackTrace for an OutOfMemoryError. 1290726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes } 129129f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes if (skip_depth_ > 0) { 129229f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes skip_depth_--; 1293530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 129429f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 12952dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod* m = GetMethod(); 12960399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (m->IsRuntimeMethod()) { 12970399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return true; // Ignore runtime frames (in particular callee save). 12986b0870dfaaa2e69a900ad7ed88e4e1d3697445aaIan Rogers } 12990399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers method_trace_->Set(count_, m); 13000399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers dex_pc_trace_->Set(count_, GetDexPc()); 1301aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers ++count_; 1302530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 13039b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 13049b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 13052dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::Object>* GetInternalStackTrace() const { 13060399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return method_trace_; 13079b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 13089b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 13099b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao private: 13101f5393447b9f45be7918042d9ee7b521376de866Ian Rogers Thread* const self_; 131129f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes // How many more frames to skip. 131229f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes int32_t skip_depth_; 13130399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Current position down stack trace. 1314aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers uint32_t count_; 13150399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Array of dex PC values. 13162dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::IntArray* dex_pc_trace_; 13170399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // An array of the methods on the stack, the last entry is a reference to the PC trace. 13182dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::Object>* method_trace_; 13199b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao}; 13209b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 132164b6d145fa53b8dfb07a8fc2426af13f155d5a4dIan Rogersjobject Thread::CreateInternalStackTrace(const ScopedObjectAccessUnchecked& soa) const { 1322aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Compute depth of stack 13237a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers CountStackDepthVisitor count_visitor(const_cast<Thread*>(this)); 13240399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers count_visitor.WalkStack(); 13259b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao int32_t depth = count_visitor.GetDepth(); 132629f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes int32_t skip_depth = count_visitor.GetSkipDepth(); 13274417536522fd2a9d8215d8672331984769c9520bShih-wei Liao 13281f5393447b9f45be7918042d9ee7b521376de866Ian Rogers // Build internal stack trace. 13297a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers BuildInternalStackTraceVisitor build_trace_visitor(soa.Self(), const_cast<Thread*>(this), 13307a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers skip_depth); 13311f5393447b9f45be7918042d9ee7b521376de866Ian Rogers if (!build_trace_visitor.Init(depth)) { 13321f5393447b9f45be7918042d9ee7b521376de866Ian Rogers return NULL; // Allocation failed. 1333283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers } 13340399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers build_trace_visitor.WalkStack(); 13352dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::Object>* trace = build_trace_visitor.GetInternalStackTrace(); 13367a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers if (kIsDebugBuild) { 13377a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers for (int32_t i = 0; i < trace->GetLength(); ++i) { 13387a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers CHECK(trace->Get(i) != NULL); 13397a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers } 13407a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers } 13417a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers return soa.AddLocalReference<jobjectArray>(trace); 1342aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers} 1343aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 134401158d7a57c8321370667a6045220237d16e0da8Elliott HughesjobjectArray Thread::InternalStackTraceToStackTraceElementArray(JNIEnv* env, jobject internal, 134501158d7a57c8321370667a6045220237d16e0da8Elliott Hughes jobjectArray output_array, int* stack_depth) { 1346aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Transition into runnable state to work on Object*/Array* 134700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(env); 1348aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Decode the internal stack trace into the depth, method trace and PC trace 13492dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::Object>* method_trace = 13502dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers soa.Decode<mirror::ObjectArray<mirror::Object>*>(internal); 13519074b99bfbd5419e340f138a018b673ce71f77e8Ian Rogers int32_t depth = method_trace->GetLength() - 1; 13522dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::IntArray* pc_trace = down_cast<mirror::IntArray*>(method_trace->Get(depth)); 1353aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 1354aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 1355aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 135601158d7a57c8321370667a6045220237d16e0da8Elliott Hughes jobjectArray result; 13572dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::StackTraceElement>* java_traces; 135801158d7a57c8321370667a6045220237d16e0da8Elliott Hughes if (output_array != NULL) { 135901158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Reuse the array we were given. 136001158d7a57c8321370667a6045220237d16e0da8Elliott Hughes result = output_array; 13612dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers java_traces = soa.Decode<mirror::ObjectArray<mirror::StackTraceElement>*>(output_array); 136201158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // ...adjusting the number of frames we'll write to not exceed the array length. 136301158d7a57c8321370667a6045220237d16e0da8Elliott Hughes depth = std::min(depth, java_traces->GetLength()); 136401158d7a57c8321370667a6045220237d16e0da8Elliott Hughes } else { 136501158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Create java_trace array and place in local reference table 136650b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers java_traces = class_linker->AllocStackTraceElementArray(soa.Self(), depth); 136730646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes if (java_traces == NULL) { 136830646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes return NULL; 136930646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 137000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers result = soa.AddLocalReference<jobjectArray>(java_traces); 137101158d7a57c8321370667a6045220237d16e0da8Elliott Hughes } 137201158d7a57c8321370667a6045220237d16e0da8Elliott Hughes 137301158d7a57c8321370667a6045220237d16e0da8Elliott Hughes if (stack_depth != NULL) { 137401158d7a57c8321370667a6045220237d16e0da8Elliott Hughes *stack_depth = depth; 137501158d7a57c8321370667a6045220237d16e0da8Elliott Hughes } 137655df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao 13776d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers MethodHelper mh; 13789b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao for (int32_t i = 0; i < depth; ++i) { 1379aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Prepare parameters for StackTraceElement(String cls, String method, String file, int line) 13802dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod* method = down_cast<mirror::AbstractMethod*>(method_trace->Get(i)); 13816d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers mh.ChangeMethod(method); 13820399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers uint32_t dex_pc = pc_trace->Get(i); 13830399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers int32_t line_number = mh.GetLineNumFromDexPC(dex_pc); 1384aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Allocate element, potentially triggering GC 138540381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom // TODO: reuse class_name_object via Class::name_? 1386486013193c94b4321414c28ce9251911e14a0599Ian Rogers const char* descriptor = mh.GetDeclaringClassDescriptor(); 1387486013193c94b4321414c28ce9251911e14a0599Ian Rogers CHECK(descriptor != NULL); 1388486013193c94b4321414c28ce9251911e14a0599Ian Rogers std::string class_name(PrettyDescriptor(descriptor)); 13892dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::String> class_name_object(soa.Self(), 13902dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::String::AllocFromModifiedUtf8(soa.Self(), 13912dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers class_name.c_str())); 139240381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom if (class_name_object.get() == NULL) { 139340381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom return NULL; 139440381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom } 1395486013193c94b4321414c28ce9251911e14a0599Ian Rogers const char* method_name = mh.GetName(); 1396486013193c94b4321414c28ce9251911e14a0599Ian Rogers CHECK(method_name != NULL); 13972dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::String> method_name_object(soa.Self(), 13982dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::String::AllocFromModifiedUtf8(soa.Self(), 13992dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers method_name)); 14006d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers if (method_name_object.get() == NULL) { 14016d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers return NULL; 14026d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers } 1403486013193c94b4321414c28ce9251911e14a0599Ian Rogers const char* source_file = mh.GetDeclaringClassSourceFile(); 14042dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::String> source_name_object(soa.Self(), mirror::String::AllocFromModifiedUtf8(soa.Self(), 14052dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers source_file)); 14062dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::StackTraceElement* obj = mirror::StackTraceElement::Alloc(soa.Self(), 14072dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers class_name_object.get(), 14082dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers method_name_object.get(), 14092dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers source_name_object.get(), 14102dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers line_number); 141130646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes if (obj == NULL) { 141230646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes return NULL; 141330646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 1414aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers#ifdef MOVING_GARBAGE_COLLECTOR 1415aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Re-read after potential GC 141600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers java_traces = Decode<ObjectArray<Object>*>(soa.Env(), result); 141700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers method_trace = down_cast<ObjectArray<Object>*>(Decode<Object*>(soa.Env(), internal)); 1418aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers pc_trace = down_cast<IntArray*>(method_trace->Get(depth)); 1419aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers#endif 142055df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao java_traces->Set(i, obj); 142155df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao } 1422aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers return result; 142355df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao} 142455df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao 142562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::ThrowNewExceptionF(const ThrowLocation& throw_location, 142662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* exception_class_descriptor, const char* fmt, ...) { 1427a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes va_list args; 1428a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes va_start(args, fmt); 142962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNewExceptionV(throw_location, exception_class_descriptor, 143062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers fmt, args); 1431a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes va_end(args); 14324a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes} 14334a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes 143462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::ThrowNewExceptionV(const ThrowLocation& throw_location, 143562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* exception_class_descriptor, 143662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* fmt, va_list ap) { 14374a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes std::string msg; 14384a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes StringAppendV(&msg, fmt, ap); 143962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNewException(throw_location, exception_class_descriptor, msg.c_str()); 14405cb5ad27944efb08d4556b3c0d362302e37e832bElliott Hughes} 144137f7a40f6789bb287f287a9af00777af9d6428eeElliott Hughes 144262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::ThrowNewException(const ThrowLocation& throw_location, const char* exception_class_descriptor, 144362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* msg) { 144400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers AssertNoPendingException(); // Callers should either clear or call ThrowNewWrappedException. 144562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNewWrappedException(throw_location, exception_class_descriptor, msg); 144662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers} 144762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 144862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::ThrowNewWrappedException(const ThrowLocation& throw_location, 144962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* exception_class_descriptor, 145062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* msg) { 145162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK_EQ(this, Thread::Current()); 145262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Ensure we don't forget arguments over object allocation. 145362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::Object> saved_throw_this(this, throw_location.GetThis()); 145462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::AbstractMethod> saved_throw_method(this, throw_location.GetMethod()); 145562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Ignore the cause throw location. TODO: should we report this as a re-throw? 145662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::Throwable> cause(this, GetException(NULL)); 145762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ClearException(); 145862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers Runtime* runtime = Runtime::Current(); 1459a4f94740f9d66b21f4bcd3a225c434aa29cfa323Elliott Hughes 146062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::ClassLoader* cl = NULL; 146162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (throw_location.GetMethod() != NULL) { 146262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers cl = throw_location.GetMethod()->GetDeclaringClass()->GetClassLoader(); 146362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 146462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::Class> 146562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception_class(this, runtime->GetClassLinker()->FindClass(exception_class_descriptor, cl)); 146662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (UNLIKELY(exception_class.get() == NULL)) { 146730646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes CHECK(IsExceptionPending()); 146862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers LOG(ERROR) << "No exception class " << PrettyDescriptor(exception_class_descriptor); 146930646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes return; 147030646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 147162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 147262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (UNLIKELY(!runtime->GetClassLinker()->EnsureInitialized(exception_class.get(), true, true))) { 147362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK(IsExceptionPending()); 147462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return; 147562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 147662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK(!runtime->IsStarted() || exception_class->IsThrowableClass()); 147762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::Throwable> exception(this, 147862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers down_cast<mirror::Throwable*>(exception_class->AllocObject(this))); 147962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 148062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Choose an appropriate constructor and set up the arguments. 148162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* signature; 148262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::String> msg_string(this, NULL); 148362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (msg != NULL) { 148462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Ensure we remember this and the method over the String allocation. 148562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers msg_string.reset(mirror::String::AllocFromModifiedUtf8(this, msg)); 148662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (UNLIKELY(msg_string.get() == NULL)) { 148762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CHECK(IsExceptionPending()); // OOME. 148862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return; 148962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 149062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (cause.get() == NULL) { 149162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers signature = "(Ljava/lang/String;)V"; 1492ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom } else { 149362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers signature = "(Ljava/lang/String;Ljava/lang/Throwable;)V"; 149462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 149562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 149662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (cause.get() == NULL) { 149762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers signature = "()V"; 149862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 149962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers signature = "(Ljava/lang/Throwable;)V"; 1500ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom } 1501ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom } 150262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::AbstractMethod* exception_init_method = 150362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception_class->FindDeclaredDirectMethod("<init>", signature); 150462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 150562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CHECK(exception_init_method != NULL) << "No <init>" << signature << " in " 150662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers << PrettyDescriptor(exception_class_descriptor); 150762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 150862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (UNLIKELY(!runtime->IsStarted())) { 150962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Something is trying to throw an exception without a started runtime, which is the common 151062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // case in the compiler. We won't be able to invoke the constructor of the exception, so set 151162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // the exception fields directly. 151262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (msg != NULL) { 151362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception->SetDetailMessage(msg_string.get()); 151462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 151562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (cause.get() != NULL) { 151662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception->SetCause(cause.get()); 151762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 151862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation gc_safe_throw_location(saved_throw_this.get(), saved_throw_method.get(), 151962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers throw_location.GetDexPc()); 152062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SetException(gc_safe_throw_location, exception.get()); 152162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 152262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ArgArray args("VLL", 3); 152362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers args.Append(reinterpret_cast<uint32_t>(exception.get())); 152462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (msg != NULL) { 152562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers args.Append(reinterpret_cast<uint32_t>(msg_string.get())); 152662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 152762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (cause.get() != NULL) { 152862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers args.Append(reinterpret_cast<uint32_t>(cause.get())); 152962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 153062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers JValue result; 153162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception_init_method->Invoke(this, args.GetArray(), args.GetNumBytes(), &result, 'V'); 153262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (LIKELY(!IsExceptionPending())) { 153362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation gc_safe_throw_location(saved_throw_this.get(), saved_throw_method.get(), 153462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers throw_location.GetDexPc()); 153562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SetException(gc_safe_throw_location, exception.get()); 153662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 153730646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 1538a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes} 1539a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes 15402ced6a534157d5d963693346904389c19775d2daElliott Hughesvoid Thread::ThrowOutOfMemoryError(const char* msg) { 15412ced6a534157d5d963693346904389c19775d2daElliott Hughes LOG(ERROR) << StringPrintf("Throwing OutOfMemoryError \"%s\"%s", 15422ced6a534157d5d963693346904389c19775d2daElliott Hughes msg, (throwing_OutOfMemoryError_ ? " (recursive case)" : "")); 154362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation throw_location = GetCurrentLocationForThrow(); 1544726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes if (!throwing_OutOfMemoryError_) { 1545726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes throwing_OutOfMemoryError_ = true; 154662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNewException(throw_location, "Ljava/lang/OutOfMemoryError;", msg); 1547418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes } else { 1548225f5a1df25241babd16cdba54056b9e2cd166a2Elliott Hughes Dump(LOG(ERROR)); // The pre-allocated OOME has no stack, so help out and log one. 154962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SetException(throw_location, Runtime::Current()->GetPreAllocatedOutOfMemoryError()); 1550418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes } 1551726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes throwing_OutOfMemoryError_ = false; 155279082e367845bbd68ec44ef2ddd1be8ef0e1550fElliott Hughes} 155379082e367845bbd68ec44ef2ddd1be8ef0e1550fElliott Hughes 1554498508c1187dc07d3eae5476784cde20f5224d93Elliott HughesThread* Thread::CurrentFromGdb() { 1555accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes return Thread::Current(); 1556accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes} 1557accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1558accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughesvoid Thread::DumpFromGdb() const { 15596b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom std::ostringstream ss; 15606b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom Dump(ss); 1561955724179c6c739524f610023287f56b24dc31deElliott Hughes std::string str(ss.str()); 15626b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom // log to stderr for debugging command line processes 15636b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom std::cerr << str; 15646b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom#ifdef HAVE_ANDROID_OS 15656b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom // log to logcat for debugging frameworks processes 15666b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom LOG(INFO) << str; 15676b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom#endif 1568accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes} 1569accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 157098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughesstruct EntryPointInfo { 157198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes uint32_t offset; 157298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes const char* name; 157398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes}; 157498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes#define ENTRY_POINT_INFO(x) { ENTRYPOINT_OFFSET(x), #x } 157598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughesstatic const EntryPointInfo gThreadEntryPointInfo[] = { 157698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pAllocArrayFromCode), 157798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pAllocArrayFromCodeWithAccessCheck), 157898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pAllocObjectFromCode), 157998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pAllocObjectFromCodeWithAccessCheck), 158098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pCheckAndAllocArrayFromCode), 158198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pCheckAndAllocArrayFromCodeWithAccessCheck), 158298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInstanceofNonTrivialFromCode), 158398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pCanPutArrayElementFromCode), 158498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pCheckCastFromCode), 158598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInitializeStaticStorage), 158698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInitializeTypeAndVerifyAccessFromCode), 158798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInitializeTypeFromCode), 158898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pResolveStringFromCode), 158998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pSet32Instance), 159098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pSet32Static), 159198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pSet64Instance), 159298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pSet64Static), 159398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pSetObjInstance), 159498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pSetObjStatic), 159598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pGet32Instance), 159698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pGet32Static), 159798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pGet64Instance), 159898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pGet64Static), 159998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pGetObjInstance), 160098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pGetObjStatic), 160198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pHandleFillArrayDataFromCode), 160298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pFindNativeMethod), 160300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ENTRY_POINT_INFO(pJniMethodStart), 160400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ENTRY_POINT_INFO(pJniMethodStartSynchronized), 160500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ENTRY_POINT_INFO(pJniMethodEnd), 160600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ENTRY_POINT_INFO(pJniMethodEndSynchronized), 160700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ENTRY_POINT_INFO(pJniMethodEndWithReference), 160800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ENTRY_POINT_INFO(pJniMethodEndWithReferenceSynchronized), 160998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pLockObjectFromCode), 161098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pUnlockObjectFromCode), 161198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pCmpgDouble), 161298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pCmpgFloat), 161398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pCmplDouble), 161498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pCmplFloat), 161598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pFmod), 16160183dd7297709ef0beb31e120fc34fdd12f61915Ian Rogers ENTRY_POINT_INFO(pSqrt), 161798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pL2d), 161898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pFmodf), 161998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pL2f), 162098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pD2iz), 162198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pF2iz), 162298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pIdivmod), 162398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pD2l), 162498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pF2l), 162598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pLdiv), 162698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pLdivmod), 162798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pLmul), 162898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pShlLong), 162998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pShrLong), 163098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pUshrLong), 163198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pIndexOf), 163298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pMemcmp16), 163398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pStringCompareTo), 163498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pMemcpy), 163598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pUnresolvedDirectMethodTrampolineFromCode), 163698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInvokeDirectTrampolineWithAccessCheck), 163798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInvokeInterfaceTrampoline), 163898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInvokeInterfaceTrampolineWithAccessCheck), 163998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInvokeStaticTrampolineWithAccessCheck), 164098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInvokeSuperTrampolineWithAccessCheck), 164198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInvokeVirtualTrampolineWithAccessCheck), 164298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pCheckSuspendFromCode), 164398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pTestSuspendFromCode), 164498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pDeliverException), 164598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pThrowAbstractMethodErrorFromCode), 164698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pThrowArrayBoundsFromCode), 164798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pThrowDivZeroFromCode), 164898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pThrowNoSuchMethodFromCode), 164998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pThrowNullPointerFromCode), 165098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pThrowStackOverflowFromCode), 165198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes}; 165298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes#undef ENTRY_POINT_INFO 165398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes 165428fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughesvoid Thread::DumpThreadOffset(std::ostream& os, uint32_t offset, size_t size_of_pointers) { 165528fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes CHECK_EQ(size_of_pointers, 4U); // TODO: support 64-bit targets. 165698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes 165798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes#define DO_THREAD_OFFSET(x) if (offset == static_cast<uint32_t>(OFFSETOF_VOLATILE_MEMBER(Thread, x))) { os << # x; return; } 1658474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers DO_THREAD_OFFSET(state_and_flags_); 165998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(card_table_); 166098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(exception_); 166107ec8e17c978e3bda0202693e6432b56349a5867Ian Rogers DO_THREAD_OFFSET(opeer_); 166298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(jni_env_); 166398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(self_); 166498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(stack_end_); 166598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(suspend_count_); 166698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(thin_lock_id_); 16670399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers //DO_THREAD_OFFSET(top_of_managed_stack_); 16680399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers //DO_THREAD_OFFSET(top_of_managed_stack_pc_); 166998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(top_sirt_); 167028fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes#undef DO_THREAD_OFFSET 167198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes 167298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes size_t entry_point_count = arraysize(gThreadEntryPointInfo); 167398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes CHECK_EQ(entry_point_count * size_of_pointers, sizeof(EntryPoints)); 167498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes uint32_t expected_offset = OFFSETOF_MEMBER(Thread, entrypoints_); 167598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes for (size_t i = 0; i < entry_point_count; ++i) { 1676474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers CHECK_EQ(gThreadEntryPointInfo[i].offset, expected_offset) << gThreadEntryPointInfo[i].name; 167798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes expected_offset += size_of_pointers; 167898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes if (gThreadEntryPointInfo[i].offset == offset) { 167998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes os << gThreadEntryPointInfo[i].name; 168098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes return; 168198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes } 168298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes } 168398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes os << offset; 168428fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes} 168528fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes 16860399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersstatic const bool kDebugExceptionDelivery = false; 16870399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass CatchBlockStackVisitor : public StackVisitor { 1688bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers public: 168962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CatchBlockStackVisitor(Thread* self, const ThrowLocation& throw_location, 169062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Throwable* exception, bool is_deoptimization) 1691b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 16927a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers : StackVisitor(self, self->GetLongJumpContext()), 169362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers self_(self), exception_(exception), is_deoptimization_(is_deoptimization), 169462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers to_find_(is_deoptimization ? NULL : exception->GetClass()), throw_location_(throw_location), 169562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers handler_quick_frame_(NULL), handler_quick_frame_pc_(0), handler_dex_pc_(0), 169662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers native_method_count_(0), 169762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers method_tracing_active_(is_deoptimization || 169862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers Runtime::Current()->GetInstrumentation()->AreExitStubsInstalled()), 169962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers instrumentation_frames_to_pop_(0), top_shadow_frame_(NULL), prev_shadow_frame_(NULL) { 170052673ffae0025d86f4023735581f19ebcc477487Ian Rogers // Exception not in root sets, can't allow GC. 170152673ffae0025d86f4023735581f19ebcc477487Ian Rogers last_no_assert_suspension_cause_ = self->StartAssertNoThreadSuspension("Finding catch block"); 170252673ffae0025d86f4023735581f19ebcc477487Ian Rogers } 170352673ffae0025d86f4023735581f19ebcc477487Ian Rogers 170452673ffae0025d86f4023735581f19ebcc477487Ian Rogers ~CatchBlockStackVisitor() { 170552673ffae0025d86f4023735581f19ebcc477487Ian Rogers LOG(FATAL) << "UNREACHABLE"; // Expected to take long jump. 170667375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers } 1707bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 170862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 17092dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod* method = GetMethod(); 1710530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes if (method == NULL) { 17110399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // This is the upcall, we remember the frame and last pc so that we may long jump to them. 17120399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers handler_quick_frame_pc_ = GetCurrentQuickFramePc(); 17130399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers handler_quick_frame_ = GetCurrentQuickFrame(); 171457b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return false; // End stack walk. 1715530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes } else { 171662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (UNLIKELY(method_tracing_active_ && 171762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers GetInstrumentationExitPc() == GetReturnPc())) { 171862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Keep count of the number of unwinds during instrumentation. 171962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers instrumentation_frames_to_pop_++; 17200399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 172162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (method->IsRuntimeMethod()) { 172262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Ignore callee save method. 172362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK(method->IsCalleeSaveMethod()); 172462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return true; 172562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else if (is_deoptimization_) { 172662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return HandleDeoptimization(method); 17270399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } else { 172862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return HandleTryItems(method); 1729bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers } 1730530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes } 173162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 173262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 173362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers bool HandleTryItems(mirror::AbstractMethod* method) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 173462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers uint32_t dex_pc = DexFile::kDexNoIndex; 173562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (method->IsNative()) { 173662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers native_method_count_++; 173762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 173862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers dex_pc = GetDexPc(); 173962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 1740530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes if (dex_pc != DexFile::kDexNoIndex) { 1741530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes uint32_t found_dex_pc = method->FindCatchBlock(to_find_, dex_pc); 1742530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes if (found_dex_pc != DexFile::kDexNoIndex) { 17430399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers handler_dex_pc_ = found_dex_pc; 17440c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers handler_quick_frame_pc_ = method->ToNativePc(found_dex_pc); 17450399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers handler_quick_frame_ = GetCurrentQuickFrame(); 174657b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return false; // End stack walk. 1747bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers } 17481a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 174957b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return true; // Continue stack walk. 17501a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 17511a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 175262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers bool HandleDeoptimization(mirror::AbstractMethod* m) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 175362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers MethodHelper mh(m); 175462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const DexFile::CodeItem* code_item = mh.GetCodeItem(); 175562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CHECK(code_item != NULL); 175662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers uint16_t num_regs = code_item->registers_size_; 175762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers uint32_t dex_pc = GetDexPc(); 175862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const Instruction* inst = Instruction::At(code_item->insns_ + dex_pc); 175962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers uint32_t new_dex_pc = dex_pc + inst->SizeInCodeUnits(); 176062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ShadowFrame* new_frame = ShadowFrame::Create(num_regs, NULL, m, new_dex_pc); 176162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers verifier::MethodVerifier verifier(&mh.GetDexFile(), mh.GetDexCache(), mh.GetClassLoader(), 176262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mh.GetClassDefIndex(), code_item, 176362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers m->GetDexMethodIndex(), m, m->GetAccessFlags(), false); 176462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers verifier.Verify(); 176562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers std::vector<int32_t> kinds = verifier.DescribeVRegs(dex_pc); 176662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers for(uint16_t reg = 0; reg < num_regs; reg++) { 176762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers VRegKind kind = static_cast<VRegKind>(kinds.at(reg * 2)); 176862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers switch (kind) { 176962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers case kUndefined: 177062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers new_frame->SetVReg(reg, 0xEBADDE09); 177162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers break; 177262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers case kConstant: 177362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers new_frame->SetVReg(reg, kinds.at((reg * 2) + 1)); 177462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers break; 177562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers case kReferenceVReg: 177662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers new_frame->SetVRegReference(reg, 177762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers reinterpret_cast<mirror::Object*>(GetVReg(m, reg, kind))); 177862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers break; 177962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers default: 178062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers new_frame->SetVReg(reg, GetVReg(m, reg, kind)); 178162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers break; 178262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 178362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 178462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (prev_shadow_frame_ != NULL) { 178562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers prev_shadow_frame_->SetLink(new_frame); 178662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 178762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers top_shadow_frame_ = new_frame; 178862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 178962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers prev_shadow_frame_ = new_frame; 179062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return true; 179162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 179262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 1793b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers void DoLongJump() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 17942dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod* catch_method = *handler_quick_frame_; 179562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (catch_method == NULL) { 179662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (kDebugExceptionDelivery) { 17970399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers LOG(INFO) << "Handler is upcall"; 179862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 179962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 180062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CHECK(!is_deoptimization_); 180162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (instrumentation_frames_to_pop_ > 0) { 180262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Don't pop the instrumentation frame of the catch handler. 180362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers instrumentation_frames_to_pop_--; 180462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 180562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (kDebugExceptionDelivery) { 18064445a7e3398a6143939168097a3aa275b734504dIan Rogers const DexFile& dex_file = *catch_method->GetDeclaringClass()->GetDexCache()->GetDexFile(); 18070399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers int line_number = dex_file.GetLineNumFromPC(catch_method, handler_dex_pc_); 18080399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers LOG(INFO) << "Handler: " << PrettyMethod(catch_method) << " (line: " << line_number << ")"; 18090399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 18100399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 181162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Put exception back in root set and clear throw location. 181262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers self_->SetException(ThrowLocation(), exception_); 181352673ffae0025d86f4023735581f19ebcc477487Ian Rogers self_->EndAssertNoThreadSuspension(last_no_assert_suspension_cause_); 181462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Do instrumentation events after allowing thread suspension again. 181562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers instrumentation::Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation(); 181662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers for (size_t i = 0; i < instrumentation_frames_to_pop_; ++i) { 181762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // We pop the instrumentation stack here so as not to corrupt it during the stack walk. 181862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers instrumentation->PopMethodForUnwind(self_, is_deoptimization_); 181962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 182062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (!is_deoptimization_) { 182162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers instrumentation->ExceptionCaughtEvent(self_, throw_location_, catch_method, handler_dex_pc_, 182262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception_); 182362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 182462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // TODO: proper return value. 182562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers self_->SetDeoptimizationShadowFrame(top_shadow_frame_); 182662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 18270399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Place context back on thread so it will be available when we continue. 18280399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers self_->ReleaseLongJumpContext(context_); 18290399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers context_->SetSP(reinterpret_cast<uintptr_t>(handler_quick_frame_)); 18300399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers CHECK_NE(handler_quick_frame_pc_, 0u); 18310399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers context_->SetPC(handler_quick_frame_pc_); 18320399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers context_->SmashCallerSaves(); 18330399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers context_->DoLongJump(); 18340399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 18350399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 18360399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers private: 183762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers Thread* const self_; 183862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Throwable* const exception_; 183962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const bool is_deoptimization_; 18400399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // The type of the exception catch block to find. 184162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Class* const to_find_; 184262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Location of the throw. 184362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const ThrowLocation& throw_location_; 18440399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Quick frame with found handler or last frame if no handler found. 18452dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod** handler_quick_frame_; 18460399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // PC to branch to for the handler. 18470399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers uintptr_t handler_quick_frame_pc_; 18480399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Associated dex PC. 18490399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers uint32_t handler_dex_pc_; 185067375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers // Number of native methods passed in crawl (equates to number of SIRTs to pop) 185167375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers uint32_t native_method_count_; 185257b86d47b66322693a070185fadfb43cb9c12eabIan Rogers // Is method tracing active? 185357b86d47b66322693a070185fadfb43cb9c12eabIan Rogers const bool method_tracing_active_; 185452673ffae0025d86f4023735581f19ebcc477487Ian Rogers // Support for nesting no thread suspension checks. 185552673ffae0025d86f4023735581f19ebcc477487Ian Rogers const char* last_no_assert_suspension_cause_; 185662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Number of frames to pop in long jump. 185762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers size_t instrumentation_frames_to_pop_; 185862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ShadowFrame* top_shadow_frame_; 185962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ShadowFrame* prev_shadow_frame_; 1860bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers}; 1861bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 186294d6df471a406a03bb1afba8ca3ae9c0fbf366b5jeffhaovoid Thread::QuickDeliverException() { 186362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Get exception from thread. 186462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation throw_location; 186562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Throwable* exception = GetException(&throw_location); 1866ff1ed4770bf7ff024a807b9f909b1a26abb78341Ian Rogers CHECK(exception != NULL); 186728ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers // Don't leave exception visible while we try to find the handler, which may cause class 1868d07986fad0d08cdf05505cf9230714a2cf0dd9aeElliott Hughes // resolution. 186928ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers ClearException(); 187062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers bool is_deoptimization = (exception == reinterpret_cast<mirror::Throwable*>(-1)); 187128ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (kDebugExceptionDelivery) { 187262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (!is_deoptimization) { 187362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::String* msg = exception->GetDetailMessage(); 187462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers std::string str_msg(msg != NULL ? msg->ToModifiedUtf8() : ""); 187562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DumpStack(LOG(INFO) << "Delivering exception: " << PrettyTypeOf(exception) 187662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers << ": " << str_msg << "\n"); 187762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 187862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DumpStack(LOG(INFO) << "Deoptimizing: "); 187962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 188028ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 188162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CatchBlockStackVisitor catch_finder(this, throw_location, exception, is_deoptimization); 18820399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers catch_finder.WalkStack(true); 18830399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers catch_finder.DoLongJump(); 18849a8a8889418e09bf2d4ae3f683fbb40a71c3c8f4Ian Rogers LOG(FATAL) << "UNREACHABLE"; 1885bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers} 1886bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 1887bdb0391258abc54bf77c676e36847d28a783bfe5Ian RogersContext* Thread::GetLongJumpContext() { 188885d1545e985ac689db4bad7849880e843707c862Elliott Hughes Context* result = long_jump_context_; 1889bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers if (result == NULL) { 1890bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers result = Context::Create(); 18910399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } else { 18920399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers long_jump_context_ = NULL; // Avoid context being shared. 18936702243ea2332b566d8e8b871cc9db0906d835adMathieu Chartier result->Reset(); 18941a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 1895bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers return result; 18961a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao} 18971a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 189862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersstruct CurrentMethodVisitor : public StackVisitor { 189962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CurrentMethodVisitor(Thread* thread, Context* context) 190062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 190162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers : StackVisitor(thread, context), this_object_(NULL), method_(NULL), dex_pc_(0) {} 190262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers virtual bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 190362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::AbstractMethod* m = GetMethod(); 190462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (m->IsRuntimeMethod()) { 190562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Continue if this is a runtime method. 190662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return true; 190762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 190862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (context_ != NULL) { 190962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers this_object_ = GetThisObject(); 19100399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 191162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers method_ = m; 191262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers dex_pc_ = GetDexPc(); 191362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return false; 191462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 191562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Object* this_object_; 191662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::AbstractMethod* method_; 191762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers uint32_t dex_pc_; 191862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers}; 19190399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 192062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersmirror::AbstractMethod* Thread::GetCurrentMethod(uint32_t* dex_pc) const { 192162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CurrentMethodVisitor visitor(const_cast<Thread*>(this), NULL); 19220399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers visitor.WalkStack(false); 19230399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (dex_pc != NULL) { 19240399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers *dex_pc = visitor.dex_pc_; 1925d07986fad0d08cdf05505cf9230714a2cf0dd9aeElliott Hughes } 19260399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return visitor.method_; 1927ee0d3fb2fbd736484fe8c3177a4e965ea86d1c65TDYa} 192833dc7717cd16592bcc825350bea6305be9eb2ea1jeffhao 192962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian RogersThrowLocation Thread::GetCurrentLocationForThrow() { 193062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers Context* context = GetLongJumpContext(); 193162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CurrentMethodVisitor visitor(this, context); 193262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers visitor.WalkStack(false); 193362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ReleaseLongJumpContext(context); 193462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return ThrowLocation(visitor.this_object_, visitor.method_, visitor.dex_pc_); 193562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers} 193662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 19372dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersbool Thread::HoldsLock(mirror::Object* object) { 19385f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes if (object == NULL) { 19395f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes return false; 19405f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 194124a3c2e9924e8765c4a9b4d383cb8f3b922f9c9fBrian Carlstrom return object->GetThinLockId() == thin_lock_id_; 19425f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes} 19435f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes 194440e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogers// RootVisitor parameters are: (const Object* obj, size_t vreg, const StackVisitor* visitor). 194540e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogerstemplate <typename RootVisitor> 19460399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass ReferenceMapVisitor : public StackVisitor { 1947d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers public: 19487a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers ReferenceMapVisitor(Thread* thread, Context* context, const RootVisitor& visitor) 1949b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 19507a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers : StackVisitor(thread, context), visitor_(visitor) {} 1951d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 1952b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 19536a4be3a6226cec645cf905dd352e44f7968a7fa4Brian Carlstrom if (false) { 19540399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers LOG(INFO) << "Visiting stack roots in " << PrettyMethod(GetMethod()) 19550399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers << StringPrintf("@ PC:%04x", GetDexPc()); 19566a4be3a6226cec645cf905dd352e44f7968a7fa4Brian Carlstrom } 19570399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ShadowFrame* shadow_frame = GetCurrentShadowFrame(); 19580399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (shadow_frame != NULL) { 19592dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod* m = shadow_frame->GetMethod(); 1960ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa size_t num_regs = shadow_frame->NumberOfVRegs(); 1961ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa if (m->IsNative() || shadow_frame->HasReferenceArray()) { 1962ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa // SIRT for JNI or References for interpreter. 1963ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa for (size_t reg = 0; reg < num_regs; ++reg) { 19642dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* ref = shadow_frame->GetVRegReference(reg); 1965ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa if (ref != NULL) { 1966ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa visitor_(ref, reg, this); 1967ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 1968ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 1969ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } else { 1970ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa // Java method. 1971ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa // Portable path use DexGcMap and store in Method.native_gc_map_. 1972ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa const uint8_t* gc_map = m->GetNativeGcMap(); 1973ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa CHECK(gc_map != NULL) << PrettyMethod(m); 1974ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa uint32_t gc_map_length = static_cast<uint32_t>((gc_map[0] << 24) | 1975ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa (gc_map[1] << 16) | 1976ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa (gc_map[2] << 8) | 1977ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa (gc_map[3] << 0)); 1978ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa verifier::DexPcToReferenceMap dex_gc_map(gc_map + 4, gc_map_length); 1979ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa uint32_t dex_pc = GetDexPc(); 1980ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa const uint8_t* reg_bitmap = dex_gc_map.FindBitMap(dex_pc); 1981ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa DCHECK(reg_bitmap != NULL); 1982ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa num_regs = std::min(dex_gc_map.RegWidth() * 8, num_regs); 1983ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa for (size_t reg = 0; reg < num_regs; ++reg) { 1984ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa if (TestBitmap(reg, reg_bitmap)) { 19852dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* ref = shadow_frame->GetVRegReference(reg); 1986ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa if (ref != NULL) { 1987ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa visitor_(ref, reg, this); 1988ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 1989ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 1990ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 1991ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 19920399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } else { 19932dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod* m = GetMethod(); 19940399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Process register map (which native and runtime methods don't have) 1995640495bd1aebcd0b429d59f62b57d0c984b2d8c6Ian Rogers if (!m->IsNative() && !m->IsRuntimeMethod() && !m->IsProxyMethod()) { 19960c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const uint8_t* native_gc_map = m->GetNativeGcMap(); 19970c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers CHECK(native_gc_map != NULL) << PrettyMethod(m); 19980c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers mh_.ChangeMethod(m); 19990c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const DexFile::CodeItem* code_item = mh_.GetCodeItem(); 2000caf7654a0e6c76c7489970b1a246fccf220f9982Elliott Hughes DCHECK(code_item != NULL) << PrettyMethod(m); // Can't be NULL or how would we compile its instructions? 20010c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers NativePcOffsetToReferenceMap map(native_gc_map); 20020399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers size_t num_regs = std::min(map.RegWidth() * 8, 20030399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers static_cast<size_t>(code_item->registers_size_)); 20040c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers if (num_regs > 0) { 20050c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const uint8_t* reg_bitmap = map.FindBitMap(GetNativePcOffset()); 20060c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers DCHECK(reg_bitmap != NULL); 20070c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const VmapTable vmap_table(m->GetVmapTableRaw()); 20080c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t core_spills = m->GetCoreSpillMask(); 20090c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t fp_spills = m->GetFpSpillMask(); 20100c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers size_t frame_size = m->GetFrameSizeInBytes(); 20110c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // For all dex registers in the bitmap 20122dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod** cur_quick_frame = GetCurrentQuickFrame(); 20130c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers DCHECK(cur_quick_frame != NULL); 20140c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers for (size_t reg = 0; reg < num_regs; ++reg) { 20150c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // Does this register hold a reference? 20160c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers if (TestBitmap(reg, reg_bitmap)) { 20170c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t vmap_offset; 20182dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* ref; 20192bcb4a496b7aa00d996df3a070524f7568fb35a1Ian Rogers if (vmap_table.IsInContext(reg, vmap_offset, kReferenceVReg)) { 20202bcb4a496b7aa00d996df3a070524f7568fb35a1Ian Rogers uintptr_t val = GetGPR(vmap_table.ComputeRegister(core_spills, vmap_offset, 20212bcb4a496b7aa00d996df3a070524f7568fb35a1Ian Rogers kReferenceVReg)); 20222dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers ref = reinterpret_cast<mirror::Object*>(val); 20230c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers } else { 20242dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers ref = reinterpret_cast<mirror::Object*>(GetVReg(cur_quick_frame, code_item, 20252dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers core_spills, fp_spills, frame_size, 20262dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers reg)); 20276f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier } 20286f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 20296f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier if (ref != NULL) { 203040e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogers visitor_(ref, reg, this); 20310399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 2032d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 20334f894e385e8ac018f078be75fea0a45696626b15Shih-wei Liao } 2034d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 2035d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 2036d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 2037530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 2038d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 2039d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 2040d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers private: 20416f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier static bool TestBitmap(int reg, const uint8_t* reg_vector) { 2042d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers return ((reg_vector[reg / 8] >> (reg % 8)) & 0x01) != 0; 2043d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 2044d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 20456f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier // Visitor for when we visit a root. 204640e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogers const RootVisitor& visitor_; 20476f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 20480c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // A method helper we keep around to avoid dex file/cache re-computations. 20490c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers MethodHelper mh_; 2050d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers}; 2051d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 20526f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartierclass RootCallbackVisitor { 20536f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier public: 20542dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers RootCallbackVisitor(RootVisitor* visitor, void* arg) : visitor_(visitor), arg_(arg) { 20556f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 20566f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier } 20576f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 20582dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers void operator()(const mirror::Object* obj, size_t, const StackVisitor*) const { 20596f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier visitor_(obj, arg_); 20606f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier } 20616f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 20626f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier private: 20632dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers RootVisitor* visitor_; 20646f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier void* arg_; 20656f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier}; 20666f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 20676f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartierclass VerifyCallbackVisitor { 20686f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier public: 20692dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers VerifyCallbackVisitor(VerifyRootVisitor* visitor, void* arg) 20706f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier : visitor_(visitor), 20716f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier arg_(arg) { 20726f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier } 20736f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 20742dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers void operator()(const mirror::Object* obj, size_t vreg, const StackVisitor* visitor) const { 207540e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogers visitor_(obj, arg_, vreg, visitor); 20766f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier } 20776f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 20786f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier private: 20792dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers VerifyRootVisitor* const visitor_; 208040e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogers void* const arg_; 20816f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier}; 20826f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 20836f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartierstruct VerifyRootWrapperArg { 20842dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers VerifyRootVisitor* visitor; 20856f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier void* arg; 20866f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier}; 20876f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 20882dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersstatic void VerifyRootWrapperCallback(const mirror::Object* root, void* arg) { 20896f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier VerifyRootWrapperArg* wrapperArg = reinterpret_cast<VerifyRootWrapperArg*>(arg); 20906f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier wrapperArg->visitor(root, wrapperArg->arg, 0, NULL); 20916f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier} 20926f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 20932dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersvoid Thread::VerifyRoots(VerifyRootVisitor* visitor, void* arg) { 20946f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier // We need to map from a RootVisitor to VerifyRootVisitor, so pass in nulls for arguments we 20956f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier // don't have. 20966f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier VerifyRootWrapperArg wrapperArg; 20976f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier wrapperArg.arg = arg; 20986f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier wrapperArg.visitor = visitor; 20996f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 2100cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (opeer_ != NULL) { 2101cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers VerifyRootWrapperCallback(opeer_, &wrapperArg); 2102cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers } 21036f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier if (exception_ != NULL) { 21046f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier VerifyRootWrapperCallback(exception_, &wrapperArg); 21056f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier } 210662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers throw_location_.VisitRoots(VerifyRootWrapperCallback, &wrapperArg); 21076f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier if (class_loader_override_ != NULL) { 21086f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier VerifyRootWrapperCallback(class_loader_override_, &wrapperArg); 21096f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier } 21106f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier jni_env_->locals.VisitRoots(VerifyRootWrapperCallback, &wrapperArg); 21116f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier jni_env_->monitors.VisitRoots(VerifyRootWrapperCallback, &wrapperArg); 21126f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21136f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier SirtVisitRoots(VerifyRootWrapperCallback, &wrapperArg); 21146f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21156f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier // Visit roots on this thread's stack 21166f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier Context* context = GetLongJumpContext(); 21176f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier VerifyCallbackVisitor visitorToCallback(visitor, arg); 21187a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers ReferenceMapVisitor<VerifyCallbackVisitor> mapper(this, context, visitorToCallback); 21196f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier mapper.WalkStack(); 21206f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier ReleaseLongJumpContext(context); 212162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 212262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers std::deque<instrumentation::InstrumentationStackFrame>* instrumentation_stack = GetInstrumentationStack(); 212362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers typedef std::deque<instrumentation::InstrumentationStackFrame>::const_iterator It; 212462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers for (It it = instrumentation_stack->begin(), end = instrumentation_stack->end(); it != end; ++it) { 212562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Object* this_object = (*it).this_object_; 212662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (this_object != NULL) { 212762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers VerifyRootWrapperCallback(this_object, &wrapperArg); 212862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 212962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::AbstractMethod* method = (*it).method_; 213062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers VerifyRootWrapperCallback(method, &wrapperArg); 213162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 21326f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier} 21336f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21342dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersvoid Thread::VisitRoots(RootVisitor* visitor, void* arg) { 2135cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (opeer_ != NULL) { 2136cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers visitor(opeer_, arg); 2137cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers } 2138d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes if (exception_ != NULL) { 2139d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes visitor(exception_, arg); 2140d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 214162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers throw_location_.VisitRoots(visitor, arg); 214240381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom if (class_loader_override_ != NULL) { 214340381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom visitor(class_loader_override_, arg); 214440381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom } 2145410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes jni_env_->locals.VisitRoots(visitor, arg); 2146410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes jni_env_->monitors.VisitRoots(visitor, arg); 21478dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao 21488dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao SirtVisitRoots(visitor, arg); 21498dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao 2150d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers // Visit roots on this thread's stack 21510399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers Context* context = GetLongJumpContext(); 21526f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier RootCallbackVisitor visitorToCallback(visitor, arg); 21537a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers ReferenceMapVisitor<RootCallbackVisitor> mapper(this, context, visitorToCallback); 21540399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers mapper.WalkStack(); 21550399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ReleaseLongJumpContext(context); 215662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 215762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers std::deque<instrumentation::InstrumentationStackFrame>* instrumentation_stack = GetInstrumentationStack(); 215862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers typedef std::deque<instrumentation::InstrumentationStackFrame>::const_iterator It; 215962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers for (It it = instrumentation_stack->begin(), end = instrumentation_stack->end(); it != end; ++it) { 216062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Object* this_object = (*it).this_object_; 216162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (this_object != NULL) { 216262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers visitor(this_object, arg); 216362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 216462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::AbstractMethod* method = (*it).method_; 216562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers visitor(method, arg); 216662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 2167410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes} 2168410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes 216904d7aa92bc5548bc4d272b9480614f06248194ccIan Rogersstatic void VerifyObject(const mirror::Object* root, void* arg) { 21700399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers Heap* heap = reinterpret_cast<Heap*>(arg); 217104d7aa92bc5548bc4d272b9480614f06248194ccIan Rogers heap->VerifyObject(root); 2172250455229aa0cc07bbd18174efe510bd52631a99jeffhao} 2173250455229aa0cc07bbd18174efe510bd52631a99jeffhao 217404d7aa92bc5548bc4d272b9480614f06248194ccIan Rogersvoid Thread::VerifyStackImpl() { 2175e66ac79b90a12b01b9d67ee9f7f586e638e67fabjeffhao UniquePtr<Context> context(Context::Create()); 21764eb68edeecc4d6641bcca2a40620631335e7cadcjeffhao RootCallbackVisitor visitorToCallback(VerifyObject, Runtime::Current()->GetHeap()); 217704d7aa92bc5548bc4d272b9480614f06248194ccIan Rogers ReferenceMapVisitor<RootCallbackVisitor> mapper(this, context.get(), visitorToCallback); 21780399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers mapper.WalkStack(); 2179250455229aa0cc07bbd18174efe510bd52631a99jeffhao} 2180250455229aa0cc07bbd18174efe510bd52631a99jeffhao 218100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers// Set the stack end to that to be used during a stack overflow 218200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::SetStackEndForStackOverflow() { 218300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // During stack overflow we allow use of the full stack 218400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (stack_end_ == stack_begin_) { 218500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DumpStack(std::cerr); 218600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(FATAL) << "Need to increase kStackOverflowReservedBytes (currently " 218700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << kStackOverflowReservedBytes << ")"; 218800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 218900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 219000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers stack_end_ = stack_begin_; 219100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 219200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 2193330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughesstd::ostream& operator<<(std::ostream& os, const Thread& thread) { 219400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers thread.ShortDump(os); 2195330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes return os; 2196330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes} 2197330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes 21988daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes} // namespace art 2199