thread.cc revision 6d69f592696f3bbd3bb0978ae3b25f2c359aac0d
18d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes/* 28d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * Copyright (C) 2011 The Android Open Source Project 38d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * 48d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * Licensed under the Apache License, Version 2.0 (the "License"); 58d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * you may not use this file except in compliance with the License. 68d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * You may obtain a copy of the License at 78d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * 88d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * http://www.apache.org/licenses/LICENSE-2.0 98d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * 108d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * Unless required by applicable law or agreed to in writing, software 118d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * distributed under the License is distributed on an "AS IS" BASIS, 128d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 138d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * See the License for the specific language governing permissions and 148d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * limitations under the License. 158d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes */ 16b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 17752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier#define ATRACE_TAG ATRACE_TAG_DALVIK 18752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier 19578bbdc684db8ed68e9fedbc678669d27fa68b6eBrian Carlstrom#include "thread.h" 20b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 21752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier#include <cutils/trace.h> 22b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers#include <pthread.h> 232acf36d8cfeb5ddb293904148aa70f25ef6d8845Elliott Hughes#include <signal.h> 24dbf05b722af99ba2fd2f4c4fc7eb6c3e9880e5d1Brian Carlstrom#include <sys/resource.h> 25dbf05b722af99ba2fd2f4c4fc7eb6c3e9880e5d1Brian Carlstrom#include <sys/time.h> 26a09576416788b916095739e43a16917e7948f3a4Elliott Hughes 27b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro#include <algorithm> 28dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes#include <bitset> 29eb4f614f2eb53b92ebd416fa418f550861655887Elliott Hughes#include <cerrno> 30a09576416788b916095739e43a16917e7948f3a4Elliott Hughes#include <iostream> 31b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro#include <list> 32b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 3376b6167407c2b6f5d40ad895b2793a6b037f54b2Elliott Hughes#include "base/mutex.h" 34a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes#include "class_linker.h" 352dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "class_linker-inl.h" 36474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers#include "cutils/atomic.h" 37474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers#include "cutils/atomic-inline.h" 3846e251bf7200cc06f5a9a82ee2030e650f5e1443Elliott Hughes#include "debugger.h" 394f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers#include "dex_file-inl.h" 400c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers#include "gc_map.h" 411d54e73444e017d3a65234e0f193846f3e27472bIan Rogers#include "gc/accounting/card_table-inl.h" 421d54e73444e017d3a65234e0f193846f3e27472bIan Rogers#include "gc/heap.h" 431d54e73444e017d3a65234e0f193846f3e27472bIan Rogers#include "gc/space/space.h" 445d9173014c1ca09f7249a6b07629aa37778b5f8fJeff Hao#include "invoke_arg_array_builder.h" 45c5f7c91ab89055cffb573fff7e06dbdd860bccedElliott Hughes#include "jni_internal.h" 462dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/abstract_method-inl.h" 472dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/class-inl.h" 482dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/class_loader.h" 49c0fa3ad44a84b7f658d16a717027bf95abc85db6Ian Rogers#include "mirror/field-inl.h" 502dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/object_array-inl.h" 512dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/stack_trace_element.h" 528e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes#include "monitor.h" 5357b86d47b66322693a070185fadfb43cb9c12eabIan Rogers#include "oat/runtime/context.h" 546d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers#include "object_utils.h" 559a6bae896a2f003d7216603bf29771d105c10ca4Jesse Wilson#include "reflection.h" 56578bbdc684db8ed68e9fedbc678669d27fa68b6eBrian Carlstrom#include "runtime.h" 575433072f589b61413e042eddf76e8190a048f71dbuzbee#include "runtime_support.h" 5800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers#include "scoped_thread_state_change.h" 5946e251bf7200cc06f5a9a82ee2030e650f5e1443Elliott Hughes#include "ScopedLocalRef.h" 603c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum#include "ScopedUtfChars.h" 611f5393447b9f45be7918042d9ee7b521376de866Ian Rogers#include "sirt_ref.h" 6268e76526e98432625464022cb26f66b9ef6f5af4Elliott Hughes#include "stack.h" 6368e76526e98432625464022cb26f66b9ef6f5af4Elliott Hughes#include "stack_indirect_reference_table.h" 64693ff61274cd2c9b8eb7e68c370f84a911b8ca52Ian Rogers#include "thread-inl.h" 658daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes#include "thread_list.h" 66a09576416788b916095739e43a16917e7948f3a4Elliott Hughes#include "utils.h" 67ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa#include "verifier/dex_gc_map.h" 6862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers#include "verifier/method_verifier.h" 69eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes#include "well_known_classes.h" 70b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 71b557353b22c728eecbd1c68593b482622c7782a8Carl Shapironamespace art { 72b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 730878d654e7be8c9666579e22522704d8887415ccIan Rogersbool Thread::is_started_ = false; 74b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiropthread_key_t Thread::pthread_key_self_; 750878d654e7be8c9666579e22522704d8887415ccIan RogersConditionVariable* Thread::resume_cond_ = NULL; 76b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 777dc5166ea740359d381097a7ab382c1dd404055fElliott Hughesstatic const char* kThreadNameDuringStartup = "<native thread without managed peer>"; 787dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes 795d76c435082332ef79a22962386fa92a0870e378Ian Rogersvoid Thread::InitCardTable() { 80b3bd5f07884f5a1f2b84224363b1372d7c28d447Elliott Hughes card_table_ = Runtime::Current()->GetHeap()->GetCardTable()->GetBiasedBegin(); 815d76c435082332ef79a22962386fa92a0870e378Ian Rogers} 825d76c435082332ef79a22962386fa92a0870e378Ian Rogers 8399250ba6a2cc72b8894dffa77c1fca5570087e3cElliott Hughes#if !defined(__APPLE__) 843ea0f42467790809fcfc9fc861605d465808090fElliott Hughesstatic void UnimplementedEntryPoint() { 853ea0f42467790809fcfc9fc861605d465808090fElliott Hughes UNIMPLEMENTED(FATAL); 863ea0f42467790809fcfc9fc861605d465808090fElliott Hughes} 8799250ba6a2cc72b8894dffa77c1fca5570087e3cElliott Hughes#endif 883ea0f42467790809fcfc9fc861605d465808090fElliott Hughes 893ea4ec5629613013ad9b0d7a69abdb94491ac46fbuzbeevoid Thread::InitFunctionPointers() { 9099250ba6a2cc72b8894dffa77c1fca5570087e3cElliott Hughes#if !defined(__APPLE__) // The Mac GCC is too old to accept this code. 913ea0f42467790809fcfc9fc861605d465808090fElliott Hughes // Insert a placeholder so we can easily tell if we call an unimplemented entry point. 923ea0f42467790809fcfc9fc861605d465808090fElliott Hughes uintptr_t* begin = reinterpret_cast<uintptr_t*>(&entrypoints_); 933ea0f42467790809fcfc9fc861605d465808090fElliott Hughes uintptr_t* end = reinterpret_cast<uintptr_t*>(reinterpret_cast<uint8_t*>(begin) + sizeof(entrypoints_)); 943ea0f42467790809fcfc9fc861605d465808090fElliott Hughes for (uintptr_t* it = begin; it != end; ++it) { 953ea0f42467790809fcfc9fc861605d465808090fElliott Hughes *it = reinterpret_cast<uintptr_t>(UnimplementedEntryPoint); 963ea0f42467790809fcfc9fc861605d465808090fElliott Hughes } 9799250ba6a2cc72b8894dffa77c1fca5570087e3cElliott Hughes#endif 9857b86d47b66322693a070185fadfb43cb9c12eabIan Rogers InitEntryPoints(&entrypoints_); 99c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes} 100c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes 10162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::SetDeoptimizationShadowFrame(ShadowFrame* sf) { 10262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers deoptimization_shadow_frame_ = sf; 1033ea4ec5629613013ad9b0d7a69abdb94491ac46fbuzbee} 1043ea4ec5629613013ad9b0d7a69abdb94491ac46fbuzbee 10562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::SetDeoptimizationReturnValue(const JValue& ret_val) { 106306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers deoptimization_return_value_.SetJ(ret_val.GetJ()); 107306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers} 108306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers 109306057fd278d75bf3794bd5243a3b6652c487d18Ian RogersShadowFrame* Thread::GetAndClearDeoptimizationShadowFrame(JValue* ret_val) { 110306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers ShadowFrame* sf = deoptimization_shadow_frame_; 111306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers deoptimization_shadow_frame_ = NULL; 112306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers ret_val->SetJ(deoptimization_return_value_.GetJ()); 113306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers return sf; 114306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers} 115306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers 116caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstromvoid Thread::InitTid() { 117caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom tid_ = ::art::GetTid(); 118caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom} 119caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom 120caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstromvoid Thread::InitAfterFork() { 1218029cbe626a467b344ff84d86170d757aa12ecd4Elliott Hughes // One thread (us) survived the fork, but we have a new tid so we need to 1228029cbe626a467b344ff84d86170d757aa12ecd4Elliott Hughes // update the value stashed in this Thread*. 123caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom InitTid(); 124caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom} 125caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom 12678128a63b2615744760b7f8ab83df9764a5d4a95Brian Carlstromvoid* Thread::CreateCallback(void* arg) { 12793e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes Thread* self = reinterpret_cast<Thread*>(arg); 128120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime* runtime = Runtime::Current(); 129120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (runtime == NULL) { 130120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << "Thread attaching to non-existent runtime: " << *self; 131120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers return NULL; 132120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 133120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers { 13450b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers // TODO: pass self to MutexLock - requires self to equal Thread::Current(), which is only true 13550b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers // after self->Init(). 13650b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers MutexLock mu(NULL, *Locks::runtime_shutdown_lock_); 137120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Check that if we got here we cannot be shutting down (as shutdown should never have started 138120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // while threads are being born). 139120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers CHECK(!runtime->IsShuttingDown()); 140120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers self->Init(runtime->GetThreadList(), runtime->GetJavaVM()); 141120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime::Current()->EndThreadBirth(); 142120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 14347179f76e3f03fe3eb21dfb081d50733ca316371Elliott Hughes { 14400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(self); 145cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers 146cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers // Copy peer into self, deleting global reference when done. 147cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers CHECK(self->jpeer_ != NULL); 1482dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers self->opeer_ = soa.Decode<mirror::Object*>(self->jpeer_); 149cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers self->GetJniEnv()->DeleteGlobalRef(self->jpeer_); 150cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers self->jpeer_ = NULL; 151cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers 152365c10235438607541fa2259a5fec48061b90bd8Ian Rogers { 1532dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::String> thread_name(self, self->GetThreadName(soa)); 154365c10235438607541fa2259a5fec48061b90bd8Ian Rogers self->SetThreadName(thread_name->ToModifiedUtf8().c_str()); 155365c10235438607541fa2259a5fec48061b90bd8Ian Rogers } 156365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Dbg::PostThreadStart(self); 15793e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 158365c10235438607541fa2259a5fec48061b90bd8Ian Rogers // Invoke the 'run' method of our java.lang.Thread. 1592dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* receiver = self->opeer_; 160365c10235438607541fa2259a5fec48061b90bd8Ian Rogers jmethodID mid = WellKnownClasses::java_lang_Thread_run; 1612dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod* m = 162cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers receiver->GetClass()->FindVirtualMethodForVirtualOrInterface(soa.DecodeMethod(mid)); 1635d9173014c1ca09f7249a6b07629aa37778b5f8fJeff Hao JValue result; 1645d9173014c1ca09f7249a6b07629aa37778b5f8fJeff Hao ArgArray arg_array(NULL, 0); 1655d9173014c1ca09f7249a6b07629aa37778b5f8fJeff Hao arg_array.Append(reinterpret_cast<uint32_t>(receiver)); 1666474d190d5604898354ebf767f1944b6e3e9b445Jeff Hao m->Invoke(self, arg_array.GetArray(), arg_array.GetNumBytes(), &result, 'V'); 167365c10235438607541fa2259a5fec48061b90bd8Ian Rogers } 16800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Detach and delete self. 16900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Runtime::Current()->GetThreadList()->Unregister(self); 17093e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 171b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro return NULL; 172b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro} 173b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 1742dd0e2cea360bc9206eb88ecc40d259e796c239dIan RogersThread* Thread::FromManagedThread(const ScopedObjectAccessUnchecked& soa, 1752dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* thread_peer) { 1763c50a4b4ba6d7d9369ee9a0bd6d30bf4c9c79bb0Anwar Ghuloum mirror::Field* f = soa.DecodeField(WellKnownClasses::java_lang_Thread_nativePeer); 17700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Thread* result = reinterpret_cast<Thread*>(static_cast<uintptr_t>(f->GetInt(thread_peer))); 17800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Sanity check that if we have a result it is either suspended or we hold the thread_list_lock_ 17900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // to stop it from going away. 18081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers if (kIsDebugBuild) { 18181d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(soa.Self(), *Locks::thread_suspend_count_lock_); 18281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers if (result != NULL && !result->IsSuspended()) { 18381d425b0b232962441616f8b14f73620bffef5e5Ian Rogers Locks::thread_list_lock_->AssertHeld(soa.Self()); 18481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers } 18500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 18600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return result; 187761928d24e4e7ed7776b52243eaf9095ad35f448Elliott Hughes} 188761928d24e4e7ed7776b52243eaf9095ad35f448Elliott Hughes 18900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan RogersThread* Thread::FromManagedThread(const ScopedObjectAccessUnchecked& soa, jobject java_thread) { 1902dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers return FromManagedThread(soa, soa.Decode<mirror::Object*>(java_thread)); 19101158d7a57c8321370667a6045220237d16e0da8Elliott Hughes} 19201158d7a57c8321370667a6045220237d16e0da8Elliott Hughes 193ab7b9dcbfc4264a0bc4889c3e463ff88a67f6a30Elliott Hughesstatic size_t FixStackSize(size_t stack_size) { 1947502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // A stack size of zero means "use the default". 195d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes if (stack_size == 0) { 196d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes stack_size = Runtime::Current()->GetDefaultStackSize(); 197d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 19861e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 1996414a97a3c6dc101ae8ebc9480114d0c327e8e8dBrian Carlstrom // Dalvik used the bionic pthread default stack size for native threads, 2006414a97a3c6dc101ae8ebc9480114d0c327e8e8dBrian Carlstrom // so include that here to support apps that expect large native stacks. 2016414a97a3c6dc101ae8ebc9480114d0c327e8e8dBrian Carlstrom stack_size += 1 * MB; 2026414a97a3c6dc101ae8ebc9480114d0c327e8e8dBrian Carlstrom 2037502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // It's not possible to request a stack smaller than the system-defined PTHREAD_STACK_MIN. 2047502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes if (stack_size < PTHREAD_STACK_MIN) { 2057502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes stack_size = PTHREAD_STACK_MIN; 2067502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes } 2077502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 2087502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // It's likely that callers are trying to ensure they have at least a certain amount of 2097502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // stack space, so we should add our reserved space on top of what they requested, rather 2107502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // than implicitly take it away from them. 2117502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes stack_size += Thread::kStackOverflowReservedBytes; 2127502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 2137502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // Some systems require the stack size to be a multiple of the system page size, so round up. 2147502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes stack_size = RoundUp(stack_size, kPageSize); 2157502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 2167502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes return stack_size; 2177502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes} 2187502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 219d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughesstatic void SigAltStack(stack_t* new_stack, stack_t* old_stack) { 220d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes if (sigaltstack(new_stack, old_stack) == -1) { 221d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes PLOG(FATAL) << "sigaltstack failed"; 222d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes } 223d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes} 224d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes 225d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughesstatic void SetUpAlternateSignalStack() { 226d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes // Create and set an alternate signal stack. 227d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes stack_t ss; 228d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes ss.ss_sp = new uint8_t[SIGSTKSZ]; 229d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes ss.ss_size = SIGSTKSZ; 230d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes ss.ss_flags = 0; 231d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes CHECK(ss.ss_sp != NULL); 232d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes SigAltStack(&ss, NULL); 233d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes 234d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes // Double-check that it worked. 235d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes ss.ss_sp = NULL; 236d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes SigAltStack(NULL, &ss); 237d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes VLOG(threads) << "Alternate signal stack is " << PrettySize(ss.ss_size) << " at " << ss.ss_sp; 238d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes} 239d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes 240d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughesstatic void TearDownAlternateSignalStack() { 241d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes // Get the pointer so we can free the memory. 242d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes stack_t ss; 243d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes SigAltStack(NULL, &ss); 244d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes uint8_t* allocated_signal_stack = reinterpret_cast<uint8_t*>(ss.ss_sp); 245d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes 246d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes // Tell the kernel to stop using it. 247d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes ss.ss_sp = NULL; 248d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes ss.ss_flags = SS_DISABLE; 2494c5231d2cd83536584f7f1063d0afffa124fcec4Elliott Hughes ss.ss_size = SIGSTKSZ; // Avoid ENOMEM failure with Mac OS' buggy libc. 250d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes SigAltStack(&ss, NULL); 251d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes 252d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes // Free it. 253d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes delete[] allocated_signal_stack; 254d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes} 255d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes 256120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogersvoid Thread::CreateNativeThread(JNIEnv* env, jobject java_peer, size_t stack_size, bool is_daemon) { 257dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier CHECK(java_peer != NULL); 258120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self = static_cast<JNIEnvExt*>(env)->self; 259120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime* runtime = Runtime::Current(); 260dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier 261120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Atomically start the birth of the thread ensuring the runtime isn't shutting down. 262120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers bool thread_start_during_shutdown = false; 263365c10235438607541fa2259a5fec48061b90bd8Ian Rogers { 264120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers MutexLock mu(self, *Locks::runtime_shutdown_lock_); 265120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (runtime->IsShuttingDown()) { 266120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers thread_start_during_shutdown = true; 267120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } else { 268120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers runtime->StartThreadBirth(); 269120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 27000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 271120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (thread_start_during_shutdown) { 272120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedLocalRef<jclass> error_class(env, env->FindClass("java/lang/InternalError")); 273120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers env->ThrowNew(error_class.get(), "Thread starting during runtime shutdown"); 274120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers return; 275120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 276120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 277120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* child_thread = new Thread(is_daemon); 278120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Use global JNI ref to hold peer live while child thread starts. 279cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers child_thread->jpeer_ = env->NewGlobalRef(java_peer); 280120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers stack_size = FixStackSize(stack_size); 281120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 2823c50a4b4ba6d7d9369ee9a0bd6d30bf4c9c79bb0Anwar Ghuloum // Thread.start is synchronized, so we know that nativePeer is 0, and know that we're not racing to 283120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // assign it. 2843c50a4b4ba6d7d9369ee9a0bd6d30bf4c9c79bb0Anwar Ghuloum env->SetIntField(java_peer, WellKnownClasses::java_lang_Thread_nativePeer, 285120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers reinterpret_cast<jint>(child_thread)); 28600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 28700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers pthread_t new_pthread; 28800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers pthread_attr_t attr; 28900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_PTHREAD_CALL(pthread_attr_init, (&attr), "new thread"); 29000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_PTHREAD_CALL(pthread_attr_setdetachstate, (&attr, PTHREAD_CREATE_DETACHED), "PTHREAD_CREATE_DETACHED"); 29100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_PTHREAD_CALL(pthread_attr_setstacksize, (&attr, stack_size), stack_size); 292120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers int pthread_create_result = pthread_create(&new_pthread, &attr, Thread::CreateCallback, child_thread); 29300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_PTHREAD_CALL(pthread_attr_destroy, (&attr), "new thread"); 29400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 295120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (pthread_create_result != 0) { 29600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // pthread_create(3) failed, so clean up. 2979efc3e03982f042c3ce67cc2c64dbe0f0986119bBrian Carlstrom { 298120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers MutexLock mu(self, *Locks::runtime_shutdown_lock_); 299120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers runtime->EndThreadBirth(); 300120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 301120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Manually delete the global reference since Thread::Init will not have been run. 302cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers env->DeleteGlobalRef(child_thread->jpeer_); 303cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers child_thread->jpeer_ = NULL; 304120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers delete child_thread; 305120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers child_thread = NULL; 306120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // TODO: remove from thread group? 3073c50a4b4ba6d7d9369ee9a0bd6d30bf4c9c79bb0Anwar Ghuloum env->SetIntField(java_peer, WellKnownClasses::java_lang_Thread_nativePeer, 0); 308120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers { 3099efc3e03982f042c3ce67cc2c64dbe0f0986119bBrian Carlstrom std::string msg(StringPrintf("pthread_create (%s stack) failed: %s", 3109efc3e03982f042c3ce67cc2c64dbe0f0986119bBrian Carlstrom PrettySize(stack_size).c_str(), strerror(pthread_create_result))); 311120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedObjectAccess soa(env); 312120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers soa.Self()->ThrowOutOfMemoryError(msg.c_str()); 3139efc3e03982f042c3ce67cc2c64dbe0f0986119bBrian Carlstrom } 314365c10235438607541fa2259a5fec48061b90bd8Ian Rogers } 31593e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes} 31661e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 317120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogersvoid Thread::Init(ThreadList* thread_list, JavaVMExt* java_vm) { 318462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // This function does all the initialization that must be run by the native thread it applies to. 319462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // (When we create a new thread from managed code, we allocate the Thread* in Thread::Create so 320462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // we can handshake with the corresponding native thread when it's ready.) Check this native 321462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // thread hasn't been through here already... 322cac6cc72c3331257fa6437b36a131e5d551e2f3cElliott Hughes CHECK(Thread::Current() == NULL); 323d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes SetUpAlternateSignalStack(); 32493e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes InitCpu(); 32593e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes InitFunctionPointers(); 3265d76c435082332ef79a22962386fa92a0870e378Ian Rogers InitCardTable(); 32701ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers InitTid(); 328120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Set pthread_self_ ahead of pthread_setspecific, that makes Thread::Current function, this 329120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // avoids pthread_self_ ever being invalid when discovered from Thread::Current(). 3300d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes pthread_self_ = pthread_self(); 3310878d654e7be8c9666579e22522704d8887415ccIan Rogers CHECK(is_started_); 3326a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes CHECK_PTHREAD_CALL(pthread_setspecific, (Thread::pthread_key_self_, this), "attach self"); 333120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers DCHECK_EQ(Thread::Current(), this); 334a5780dad67556297c8ca5f2608c53b193e6c4514Elliott Hughes 335cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers thin_lock_id_ = thread_list->AllocThreadId(this); 336120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers InitStackHwm(); 3375fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 338120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_ = new JNIEnvExt(this, java_vm); 339120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers thread_list->Register(this); 34093e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes} 34193e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 342664bebf92eb2151b9b570ccd42ac4b6056c3ea9cMathieu ChartierThread* Thread::Attach(const char* thread_name, bool as_daemon, jobject thread_group, 343664bebf92eb2151b9b570ccd42ac4b6056c3ea9cMathieu Chartier bool create_peer) { 344120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self; 345120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime* runtime = Runtime::Current(); 346120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (runtime == NULL) { 347120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << "Thread attaching to non-existent runtime: " << thread_name; 348120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers return NULL; 349120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 350120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers { 351120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers MutexLock mu(NULL, *Locks::runtime_shutdown_lock_); 352120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (runtime->IsShuttingDown()) { 353120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << "Thread attaching while runtime is shutting down: " << thread_name; 354120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers return NULL; 355120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } else { 356120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime::Current()->StartThreadBirth(); 357120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers self = new Thread(as_daemon); 358120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers self->Init(runtime->GetThreadList(), runtime->GetJavaVM()); 359120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime::Current()->EndThreadBirth(); 360120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 361120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 3625fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 363dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier CHECK_NE(self->GetState(), kRunnable); 364dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier self->SetState(kNative); 365726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes 366cac6cc72c3331257fa6437b36a131e5d551e2f3cElliott Hughes // If we're the main thread, ClassLinker won't be created until after we're attached, 367cac6cc72c3331257fa6437b36a131e5d551e2f3cElliott Hughes // so that thread needs a two-stage attach. Regular threads don't need this hack. 368d9c67be7c116875d96b31e640ad47d587b205605Elliott Hughes // In the compiler, all threads need this hack, because no-one's going to be getting 369d9c67be7c116875d96b31e640ad47d587b205605Elliott Hughes // a native peer! 370664bebf92eb2151b9b570ccd42ac4b6056c3ea9cMathieu Chartier if (create_peer) { 371462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes self->CreatePeer(thread_name, as_daemon, thread_group); 37206e3ad4a651c2c58dba5e865cd06d2f98462bf1dElliott Hughes } else { 37306e3ad4a651c2c58dba5e865cd06d2f98462bf1dElliott Hughes // These aren't necessary, but they improve diagnostics for unit tests & command-line tools. 37422869a9026a08b544eca4cefd67386d347e30d2cElliott Hughes if (thread_name != NULL) { 37522869a9026a08b544eca4cefd67386d347e30d2cElliott Hughes self->name_->assign(thread_name); 37622869a9026a08b544eca4cefd67386d347e30d2cElliott Hughes ::art::SetThreadName(thread_name); 37722869a9026a08b544eca4cefd67386d347e30d2cElliott Hughes } 37836e0a955e48e9357bff1eab783e493107ebfff62Ian Rogers } 379cac6cc72c3331257fa6437b36a131e5d551e2f3cElliott Hughes 3805fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes return self; 3815fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes} 3825fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 383365c10235438607541fa2259a5fec48061b90bd8Ian Rogersvoid Thread::CreatePeer(const char* name, bool as_daemon, jobject thread_group) { 384365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Runtime* runtime = Runtime::Current(); 385365c10235438607541fa2259a5fec48061b90bd8Ian Rogers CHECK(runtime->IsStarted()); 3865fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes JNIEnv* env = jni_env_; 3875fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 388462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes if (thread_group == NULL) { 389365c10235438607541fa2259a5fec48061b90bd8Ian Rogers thread_group = runtime->GetMainThreadGroup(); 390462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes } 391726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes ScopedLocalRef<jobject> thread_name(env, env->NewStringUTF(name)); 3928daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes jint thread_priority = GetNativePriority(); 3935fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes jboolean thread_is_daemon = as_daemon; 3945fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 395eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes ScopedLocalRef<jobject> peer(env, env->AllocObject(WellKnownClasses::java_lang_Thread)); 396dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier if (peer.get() == NULL) { 397dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier CHECK(IsExceptionPending()); 398dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier return; 3995d4bdc29737a693027daaf6ed3f0792368eb4baeIan Rogers } 400cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers { 401cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedObjectAccess soa(this); 4022dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers opeer_ = soa.Decode<mirror::Object*>(peer.get()); 403cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers } 404eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes env->CallNonvirtualVoidMethod(peer.get(), 405eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes WellKnownClasses::java_lang_Thread, 406eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes WellKnownClasses::java_lang_Thread_init, 407365c10235438607541fa2259a5fec48061b90bd8Ian Rogers thread_group, thread_name.get(), thread_priority, thread_is_daemon); 40800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers AssertNoPendingException(); 409d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 410120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self = this; 411120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers DCHECK_EQ(self, Thread::Current()); 4123c50a4b4ba6d7d9369ee9a0bd6d30bf4c9c79bb0Anwar Ghuloum jni_env_->SetIntField(peer.get(), WellKnownClasses::java_lang_Thread_nativePeer, 413120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers reinterpret_cast<jint>(self)); 414120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 415120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedObjectAccess soa(self); 4162dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::String> peer_thread_name(soa.Self(), GetThreadName(soa)); 41700fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom if (peer_thread_name.get() == NULL) { 41800fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom // The Thread constructor should have set the Thread.name to a 41900fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom // non-null value. However, because we can run without code 42000fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom // available (in the compiler, in tests), we manually assign the 42100fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom // fields the constructor should have set. 422dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier soa.DecodeField(WellKnownClasses::java_lang_Thread_daemon)-> 423cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers SetBoolean(opeer_, thread_is_daemon); 424dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier soa.DecodeField(WellKnownClasses::java_lang_Thread_group)-> 4252dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SetObject(opeer_, soa.Decode<mirror::Object*>(thread_group)); 426dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier soa.DecodeField(WellKnownClasses::java_lang_Thread_name)-> 4272dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SetObject(opeer_, soa.Decode<mirror::Object*>(thread_name.get())); 428dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier soa.DecodeField(WellKnownClasses::java_lang_Thread_priority)-> 429cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers SetInt(opeer_, thread_priority); 43000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers peer_thread_name.reset(GetThreadName(soa)); 43100fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom } 432225f5a1df25241babd16cdba54056b9e2cd166a2Elliott Hughes // 'thread_name' may have been null, so don't trust 'peer_thread_name' to be non-null. 43300fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom if (peer_thread_name.get() != NULL) { 434899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes SetThreadName(peer_thread_name->ToModifiedUtf8().c_str()); 43500fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom } 43661e019d291583029c01b61b93bea750f2b663c37Carl Shapiro} 43761e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 438899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughesvoid Thread::SetThreadName(const char* name) { 439899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes name_->assign(name); 440899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes ::art::SetThreadName(name); 441899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes Dbg::DdmSendThreadNotification(this, CHUNK_TYPE("THNM")); 442899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes} 443899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes 444be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughesvoid Thread::InitStackHwm() { 445e188419b971936086a188843378375f5ced13724Elliott Hughes void* stack_base; 446e188419b971936086a188843378375f5ced13724Elliott Hughes size_t stack_size; 447120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers GetThreadStack(pthread_self_, stack_base, stack_size); 44836ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 44936ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // TODO: include this in the thread dumps; potentially useful in SIGQUIT output? 450e188419b971936086a188843378375f5ced13724Elliott Hughes VLOG(threads) << StringPrintf("Native stack is at %p (%s)", stack_base, PrettySize(stack_size).c_str()); 451e188419b971936086a188843378375f5ced13724Elliott Hughes 452e188419b971936086a188843378375f5ced13724Elliott Hughes stack_begin_ = reinterpret_cast<byte*>(stack_base); 453e188419b971936086a188843378375f5ced13724Elliott Hughes stack_size_ = stack_size; 45436ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 455932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers if (stack_size_ <= kStackOverflowReservedBytes) { 4563d30d9b09c16542d41554aad9f46ec9109ba5cb5Elliott Hughes LOG(FATAL) << "Attempt to attach a thread with a too-small stack (" << stack_size_ << " bytes)"; 457be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 458449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes 459e188419b971936086a188843378375f5ced13724Elliott Hughes // TODO: move this into the Linux GetThreadStack implementation. 460e188419b971936086a188843378375f5ced13724Elliott Hughes#if !defined(__APPLE__) 46136ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // If we're the main thread, check whether we were run with an unlimited stack. In that case, 46236ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // glibc will have reported a 2GB stack for our 32-bit process, and our stack overflow detection 46336ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // will be broken because we'll die long before we get close to 2GB. 464120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers bool is_main_thread = (::art::GetTid() == getpid()); 465120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (is_main_thread) { 46636ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes rlimit stack_limit; 46736ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes if (getrlimit(RLIMIT_STACK, &stack_limit) == -1) { 46836ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes PLOG(FATAL) << "getrlimit(RLIMIT_STACK) failed"; 46936ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes } 47036ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes if (stack_limit.rlim_cur == RLIM_INFINITY) { 47136ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // Find the default stack size for new threads... 47236ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes pthread_attr_t default_attributes; 47336ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes size_t default_stack_size; 47436ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_init, (&default_attributes), "default stack size query"); 47536ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_getstacksize, (&default_attributes, &default_stack_size), 47636ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes "default stack size query"); 47736ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_destroy, (&default_attributes), "default stack size query"); 47836ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 47936ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // ...and use that as our limit. 48036ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes size_t old_stack_size = stack_size_; 48136ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes stack_size_ = default_stack_size; 48236ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes stack_begin_ += (old_stack_size - stack_size_); 483faf4ba01738400f418b45c4323aa9e8e6b6ba2a0Elliott Hughes VLOG(threads) << "Limiting unlimited stack (reported as " << PrettySize(old_stack_size) << ")" 484faf4ba01738400f418b45c4323aa9e8e6b6ba2a0Elliott Hughes << " to " << PrettySize(stack_size_) 485faf4ba01738400f418b45c4323aa9e8e6b6ba2a0Elliott Hughes << " with base " << reinterpret_cast<void*>(stack_begin_); 48636ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes } 48736ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes } 488e188419b971936086a188843378375f5ced13724Elliott Hughes#endif 48936ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 490932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // Set stack_end_ to the bottom of the stack saving space of stack overflows 491932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers ResetDefaultStackEnd(); 492449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes 493449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes // Sanity check. 494449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes int stack_variable; 495398f64b5805246765b699839b439e18c0dfbf2eeElliott Hughes CHECK_GT(&stack_variable, reinterpret_cast<void*>(stack_end_)); 496be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes} 497be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 49800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::ShortDump(std::ostream& os) const { 49900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers os << "Thread["; 50000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (GetThinLockId() != 0) { 50100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // If we're in kStarting, we won't have a thin lock id or tid yet. 50200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers os << GetThinLockId() 50300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << ",tid=" << GetTid() << ','; 504e0918556e7551de638870dcad3f2023f94f85a50Elliott Hughes } 505474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers os << GetState() 50600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << ",Thread*=" << this 507cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers << ",peer=" << opeer_ 50800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << ",\"" << *name_ << "\"" 50900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << "]"; 510d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes} 511d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 51200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::Dump(std::ostream& os) const { 51300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DumpState(os); 51400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DumpStack(os); 51500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 51600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 5172dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersmirror::String* Thread::GetThreadName(const ScopedObjectAccessUnchecked& soa) const { 5182dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Field* f = soa.DecodeField(WellKnownClasses::java_lang_Thread_name); 5192dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers return (opeer_ != NULL) ? reinterpret_cast<mirror::String*>(f->GetObject(opeer_)) : NULL; 520fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes} 521fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes 522ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughesvoid Thread::GetThreadName(std::string& name) const { 523ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes name.assign(*name_); 524ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes} 525ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes 526474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogersvoid Thread::AtomicSetFlag(ThreadFlag flag) { 52730e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers android_atomic_or(flag, &state_and_flags_.as_int); 528474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers} 529474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers 530474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogersvoid Thread::AtomicClearFlag(ThreadFlag flag) { 53130e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers android_atomic_and(-1 ^ flag, &state_and_flags_.as_int); 532474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers} 533474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers 53401ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers// Attempt to rectify locks so that we dump thread list with required locks before exiting. 53501ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogersstatic void UnsafeLogFatalForSuspendCount(Thread* self, Thread* thread) NO_THREAD_SAFETY_ANALYSIS { 536120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << *thread << " suspend count already zero."; 53701ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::thread_suspend_count_lock_->Unlock(self); 53801ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::mutator_lock_->IsSharedHeld(self)) { 53901ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::mutator_lock_->SharedTryLock(self); 54001ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::mutator_lock_->IsSharedHeld(self)) { 54101ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers LOG(WARNING) << "Dumping thread list without holding mutator_lock_"; 54201ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 54301ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 54401ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::thread_list_lock_->IsExclusiveHeld(self)) { 54501ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::thread_list_lock_->TryLock(self); 54601ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::thread_list_lock_->IsExclusiveHeld(self)) { 54701ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers LOG(WARNING) << "Dumping thread list without holding thread_list_lock_"; 54801ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 54901ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 55001ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers std::ostringstream ss; 55101ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Runtime::Current()->GetThreadList()->DumpLocked(ss); 552120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(FATAL) << ss.str(); 55301ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers} 55401ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers 55501ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogersvoid Thread::ModifySuspendCount(Thread* self, int delta, bool for_debugger) { 55600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DCHECK(delta == -1 || delta == +1 || delta == -debug_suspend_count_) 55700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << delta << " " << debug_suspend_count_ << " " << this; 55800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DCHECK_GE(suspend_count_, debug_suspend_count_) << this; 55901ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::thread_suspend_count_lock_->AssertHeld(self); 560cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (this != self && !IsSuspended()) { 561cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers Locks::thread_list_lock_->AssertHeld(self); 562cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers } 56301ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (UNLIKELY(delta < 0 && suspend_count_ <= 0)) { 56401ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers UnsafeLogFatalForSuspendCount(self, this); 56500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return; 56600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 56701ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers 56800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers suspend_count_ += delta; 56900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (for_debugger) { 57000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers debug_suspend_count_ += delta; 57100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 57201ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers 573474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers if (suspend_count_ == 0) { 574474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers AtomicClearFlag(kSuspendRequest); 575474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers } else { 576474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers AtomicSetFlag(kSuspendRequest); 577474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers } 57800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 57900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 580752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartiervoid Thread::RunCheckpointFunction() { 581752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier CHECK(checkpoint_function_ != NULL); 582752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier ATRACE_BEGIN("Checkpoint function"); 583752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier checkpoint_function_->Run(this); 584752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier ATRACE_END(); 585752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier} 586752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier 5870e4627e593bc39f8e3d89c31f8977d55054c07ccMathieu Chartierbool Thread::RequestCheckpoint(Closure* function) { 588858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier CHECK(!ReadFlag(kCheckpointRequest)) << "Already have a pending checkpoint request"; 589858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier checkpoint_function_ = function; 590858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier union StateAndFlags old_state_and_flags = state_and_flags_; 591858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier // We must be runnable to request a checkpoint. 592858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier old_state_and_flags.as_struct.state = kRunnable; 593858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier union StateAndFlags new_state_and_flags = old_state_and_flags; 594858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier new_state_and_flags.as_struct.flags |= kCheckpointRequest; 595858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier int succeeded = android_atomic_cmpxchg(old_state_and_flags.as_int, new_state_and_flags.as_int, 596858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier &state_and_flags_.as_int); 597858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier return succeeded == 0; 598858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier} 599858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier 60000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::FullSuspendCheck() { 60100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers VLOG(threads) << this << " self-suspending"; 602752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier ATRACE_BEGIN("Full suspend check"); 60300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Make thread appear suspended to other threads, release mutator_lock_. 60400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers TransitionFromRunnableToSuspended(kSuspended); 60500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Transition back to runnable noting requests to suspend, re-acquire share on mutator_lock_. 60600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers TransitionFromSuspendedToRunnable(); 607752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier ATRACE_END(); 60800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers VLOG(threads) << this << " self-reviving"; 60900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 61000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 611f327e07b37e349b1ec5eaad6dc294a9b7a081d20Elliott HughesThread* Thread::SuspendForDebugger(jobject peer, bool request_suspension, bool* timed_out) { 61200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers static const useconds_t kTimeoutUs = 30 * 1000000; // 30s. 61300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers useconds_t total_delay_us = 0; 61400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers useconds_t delay_us = 0; 61500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers bool did_suspend_request = false; 616f327e07b37e349b1ec5eaad6dc294a9b7a081d20Elliott Hughes *timed_out = false; 61700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers while (true) { 61800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Thread* thread; 61900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers { 62000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(Thread::Current()); 6213c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum Thread* self = soa.Self(); 6223c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum MutexLock mu(self, *Locks::thread_list_lock_); 62300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers thread = Thread::FromManagedThread(soa, peer); 62400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (thread == NULL) { 6253c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum JNIEnv* env = self->GetJniEnv(); 6263c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum ScopedLocalRef<jstring> scoped_name_string(env, 6273c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum (jstring)env->GetObjectField(peer, 6283c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum WellKnownClasses::java_lang_Thread_name)); 6293c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum ScopedUtfChars scoped_name_chars(env,scoped_name_string.get()); 6303c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum if (scoped_name_chars.c_str() == NULL) { 6313c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum LOG(WARNING) << "No such thread for suspend: " << peer; 6323c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum env->ExceptionClear(); 6333c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum } else { 6343c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum LOG(WARNING) << "No such thread for suspend: " << peer << ":" << scoped_name_chars.c_str(); 6353c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum } 6363c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum 63700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return NULL; 63800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 63900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers { 64081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(soa.Self(), *Locks::thread_suspend_count_lock_); 64100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (request_suspension) { 64201ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers thread->ModifySuspendCount(soa.Self(), +1, true /* for_debugger */); 64300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers request_suspension = false; 64400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers did_suspend_request = true; 64500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 64600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // IsSuspended on the current thread will fail as the current thread is changed into 64700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Runnable above. As the suspend count is now raised if this is the current thread 648cb69306eefc1e6e42b3eaec8b479a268222b01b6Elliott Hughes // it will self suspend on transition to Runnable, making it hard to work with. It's simpler 64900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // to just explicitly handle the current thread in the callers to this code. 650cb69306eefc1e6e42b3eaec8b479a268222b01b6Elliott Hughes CHECK_NE(thread, soa.Self()) << "Attempt to suspend the current thread for the debugger"; 65100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // If thread is suspended (perhaps it was already not Runnable but didn't have a suspend 65200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // count, or else we've waited and it has self suspended) or is the current thread, we're 65300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // done. 65400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (thread->IsSuspended()) { 65500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return thread; 65600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 65700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (total_delay_us >= kTimeoutUs) { 65800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(ERROR) << "Thread suspension timed out: " << peer; 65900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (did_suspend_request) { 66001ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers thread->ModifySuspendCount(soa.Self(), -1, true /* for_debugger */); 66100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 662f327e07b37e349b1ec5eaad6dc294a9b7a081d20Elliott Hughes *timed_out = true; 66300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return NULL; 66400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 66500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 66600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Release locks and come out of runnable state. 66700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 6680f827169742aad6209d830db773a101849c32a83Elliott Hughes for (int i = kLockLevelCount - 1; i >= 0; --i) { 66981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers BaseMutex* held_mutex = Thread::Current()->GetHeldMutex(static_cast<LockLevel>(i)); 67000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (held_mutex != NULL) { 67100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(FATAL) << "Holding " << held_mutex->GetName() 67200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << " while sleeping for thread suspension"; 67300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 67400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 67500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers { 67600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers useconds_t new_delay_us = delay_us * 2; 67700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_GE(new_delay_us, delay_us); 67800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (new_delay_us < 500000) { // Don't allow sleeping to be more than 0.5s. 67900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers delay_us = new_delay_us; 68000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 68100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 68200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (delay_us == 0) { 68300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers sched_yield(); 68400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Default to 1 milliseconds (note that this gets multiplied by 2 before the first sleep). 68500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers delay_us = 500; 68600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } else { 68700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers usleep(delay_us); 68800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers total_delay_us += delay_us; 68900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 69000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 69100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 69200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 693abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughesvoid Thread::DumpState(std::ostream& os, const Thread* thread, pid_t tid) { 694d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes std::string group_name; 695d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes int priority; 696d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes bool is_daemon = false; 69781d425b0b232962441616f8b14f73620bffef5e5Ian Rogers Thread* self = Thread::Current(); 698d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 699a6227676df130164322b1ac66a429eb0bfd0df62Ian Rogers if (self != NULL && thread != NULL && thread->opeer_ != NULL) { 700cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedObjectAccessUnchecked soa(self); 701cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers priority = soa.DecodeField(WellKnownClasses::java_lang_Thread_priority)->GetInt(thread->opeer_); 702cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers is_daemon = soa.DecodeField(WellKnownClasses::java_lang_Thread_daemon)->GetBoolean(thread->opeer_); 703d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 7042dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* thread_group = 705cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers soa.DecodeField(WellKnownClasses::java_lang_Thread_group)->GetObject(thread->opeer_); 706120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 707d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes if (thread_group != NULL) { 7082dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Field* group_name_field = 7092dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers soa.DecodeField(WellKnownClasses::java_lang_ThreadGroup_name); 7102dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::String* group_name_string = 7112dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers reinterpret_cast<mirror::String*>(group_name_field->GetObject(thread_group)); 712d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes group_name = (group_name_string != NULL) ? group_name_string->ToModifiedUtf8() : "<null>"; 713d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 714d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } else { 715d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes priority = GetNativePriority(); 716dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes } 717d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 718abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes std::string scheduler_group_name(GetSchedulerGroupName(tid)); 7191bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughes if (scheduler_group_name.empty()) { 7201bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughes scheduler_group_name = "default"; 721d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 722d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 723abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (thread != NULL) { 724abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << '"' << *thread->name_ << '"'; 725abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (is_daemon) { 726abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " daemon"; 727abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } 728abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " prio=" << priority 729abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " tid=" << thread->GetThinLockId() 73080537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes << " " << thread->GetState(); 73180537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes if (thread->IsStillStarting()) { 73280537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes os << " (still starting up)"; 73380537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes } 73480537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes os << "\n"; 735abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } else { 736289be85116aaf7c48413858b5d0448868b4e61f3Elliott Hughes os << '"' << ::art::GetThreadName(tid) << '"' 737abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " prio=" << priority 738abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " (not attached)\n"; 739abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } 740abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes 741abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (thread != NULL) { 74281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(self, *Locks::thread_suspend_count_lock_); 743abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " | group=\"" << group_name << "\"" 744abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " sCount=" << thread->suspend_count_ 745abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " dsCount=" << thread->debug_suspend_count_ 746cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers << " obj=" << reinterpret_cast<void*>(thread->opeer_) 747abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " self=" << reinterpret_cast<const void*>(thread) << "\n"; 748d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 7490d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes 750abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " | sysTid=" << tid 751abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " nice=" << getpriority(PRIO_PROCESS, tid) 7520d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes << " cgrp=" << scheduler_group_name; 7530d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes if (thread != NULL) { 7540d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes int policy; 7550d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes sched_param sp; 7560d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes CHECK_PTHREAD_CALL(pthread_getschedparam, (thread->pthread_self_, &policy, &sp), __FUNCTION__); 7570d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes os << " sched=" << policy << "/" << sp.sched_priority 7580d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes << " handle=" << reinterpret_cast<void*>(thread->pthread_self_); 7590d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes } 7600d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes os << "\n"; 761d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 762d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes // Grab the scheduler stats for this thread. 763d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes std::string scheduler_stats; 764abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (ReadFileToString(StringPrintf("/proc/self/task/%d/schedstat", tid), &scheduler_stats)) { 765d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes scheduler_stats.resize(scheduler_stats.size() - 1); // Lose the trailing '\n'. 766d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } else { 767d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes scheduler_stats = "0 0 0"; 768d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 769d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 770ba0b9c55adce3f533845ab1b25c552589e5b4118Elliott Hughes char native_thread_state = '?'; 771d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int utime = 0; 772d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int stime = 0; 773d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int task_cpu = 0; 774ba0b9c55adce3f533845ab1b25c552589e5b4118Elliott Hughes GetTaskStats(tid, native_thread_state, utime, stime, task_cpu); 775d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 776ba0b9c55adce3f533845ab1b25c552589e5b4118Elliott Hughes os << " | state=" << native_thread_state 777ba0b9c55adce3f533845ab1b25c552589e5b4118Elliott Hughes << " schedstat=( " << scheduler_stats << " )" 778d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes << " utm=" << utime 779d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes << " stm=" << stime 780abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " core=" << task_cpu 781abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " HZ=" << sysconf(_SC_CLK_TCK) << "\n"; 782abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (thread != NULL) { 783abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " | stack=" << reinterpret_cast<void*>(thread->stack_begin_) << "-" << reinterpret_cast<void*>(thread->stack_end_) 784abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " stackSize=" << PrettySize(thread->stack_size_) << "\n"; 785abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } 786abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes} 787abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes 788abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughesvoid Thread::DumpState(std::ostream& os) const { 789abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes Thread::DumpState(os, this, GetTid()); 790a09576416788b916095739e43a16917e7948f3a4Elliott Hughes} 791a09576416788b916095739e43a16917e7948f3a4Elliott Hughes 7920399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersstruct StackDumpVisitor : public StackVisitor { 7937a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers StackDumpVisitor(std::ostream& os, Thread* thread, Context* context, bool can_allocate) 794b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 7957a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers : StackVisitor(thread, context), os(os), thread(thread), can_allocate(can_allocate), 79608fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes last_method(NULL), last_line_number(0), repetition_count(0), frame_count(0) { 797d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 798d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 799bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers virtual ~StackDumpVisitor() { 800e85d2e924953f1a13b7152edba1c13853e6f3a86Elliott Hughes if (frame_count == 0) { 801e85d2e924953f1a13b7152edba1c13853e6f3a86Elliott Hughes os << " (no managed stack frames)\n"; 802e85d2e924953f1a13b7152edba1c13853e6f3a86Elliott Hughes } 803d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 804d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 805b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 8062dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod* m = GetMethod(); 8070399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (m->IsRuntimeMethod()) { 808530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 8099086572fa809d1a19d886b467e4da3ce42016982Ian Rogers } 81028ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers const int kMaxRepetition = 3; 8112dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Class* c = m->GetDeclaringClass(); 8122dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers const mirror::DexCache* dex_cache = c->GetDexCache(); 813b861dc0077342d5a1d2dd9cade3f6990620778ecIan Rogers int line_number = -1; 814b861dc0077342d5a1d2dd9cade3f6990620778ecIan Rogers if (dex_cache != NULL) { // be tolerant of bad input 8154445a7e3398a6143939168097a3aa275b734504dIan Rogers const DexFile& dex_file = *dex_cache->GetDexFile(); 8160399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers line_number = dex_file.GetLineNumFromPC(m, GetDexPc()); 817b861dc0077342d5a1d2dd9cade3f6990620778ecIan Rogers } 81828ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (line_number == last_line_number && last_method == m) { 81928ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers repetition_count++; 820d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } else { 82128ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (repetition_count >= kMaxRepetition) { 82228ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << " ... repeated " << (repetition_count - kMaxRepetition) << " times\n"; 82328ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 82428ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers repetition_count = 0; 82528ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers last_line_number = line_number; 82628ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers last_method = m; 82728ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 82828ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (repetition_count < kMaxRepetition) { 82928ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << " at " << PrettyMethod(m, false); 83028ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (m->IsNative()) { 83128ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << "(Native method)"; 83228ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } else { 8336d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers mh.ChangeMethod(m); 8346d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers const char* source_file(mh.GetDeclaringClassSourceFile()); 8356d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers os << "(" << (source_file != NULL ? source_file : "unavailable") 83628ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers << ":" << line_number << ")"; 83728ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 83828ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << "\n"; 83908fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes if (frame_count == 0) { 84008fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes Monitor::DescribeWait(os, thread); 84108fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes } 84208fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes if (can_allocate) { 8434993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes Monitor::VisitLocks(this, DumpLockedObject, &os); 84408fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes } 845d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 8468e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes 84708fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes ++frame_count; 848530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 849d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 8504993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes 8512dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers static void DumpLockedObject(mirror::Object* o, void* context) 8524993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 8534993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes std::ostream& os = *reinterpret_cast<std::ostream*>(context); 8544993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes os << " - locked <" << o << "> (a " << PrettyTypeOf(o) << ")\n"; 8554993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes } 8564993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes 85708fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes std::ostream& os; 85808fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes const Thread* thread; 8590878d654e7be8c9666579e22522704d8887415ccIan Rogers const bool can_allocate; 8606d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers MethodHelper mh; 8612dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod* last_method; 86228ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers int last_line_number; 86328ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers int repetition_count; 8648e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes int frame_count; 865d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes}; 866d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 86733e9566255c426e7a2c8fca5b8a1b6a94a5d352cIan Rogersstatic bool ShouldShowNativeStack(const Thread* thread) 86833e9566255c426e7a2c8fca5b8a1b6a94a5d352cIan Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 869aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes ThreadState state = thread->GetState(); 870aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes 871aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // In native code somewhere in the VM (one of the kWaitingFor* states)? That's interesting. 872aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes if (state > kWaiting && state < kStarting) { 873aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes return true; 874aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes } 875aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes 876aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // In an Object.wait variant or Thread.sleep? That's not interesting. 877aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes if (state == kTimedWaiting || state == kSleeping || state == kWaiting) { 878aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes return false; 879aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes } 880aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes 881aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // In some other native method? That's interesting. 882aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // We don't just check kNative because native methods will be in state kSuspended if they're 883aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // calling back into the VM, or kBlocked if they're blocked on a monitor, or one of the 884aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // thread-startup states if it's early enough in their life cycle (http://b/7432159). 88562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::AbstractMethod* current_method = thread->GetCurrentMethod(NULL); 886aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes return current_method != NULL && current_method->IsNative(); 887aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes} 888aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes 889d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughesvoid Thread::DumpStack(std::ostream& os) const { 890ed1790e83352e54420018d1495eb010f7cd48a64Jeff Hao // TODO: we call this code when dying but may not have suspended the thread ourself. The 891ed1790e83352e54420018d1495eb010f7cd48a64Jeff Hao // IsSuspended check is therefore racy with the use for dumping (normally we inhibit 892ed1790e83352e54420018d1495eb010f7cd48a64Jeff Hao // the race with the thread_suspend_count_lock_). 893d090cf4f2420a228251e27dbae600f4f44ae2c57Ian Rogers bool dump_for_abort = (gAborting > 0); 894d090cf4f2420a228251e27dbae600f4f44ae2c57Ian Rogers if (this == Thread::Current() || IsSuspended() || dump_for_abort) { 895f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers // If we're currently in native code, dump that stack before dumping the managed stack. 896d090cf4f2420a228251e27dbae600f4f44ae2c57Ian Rogers if (dump_for_abort || ShouldShowNativeStack(this)) { 897f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers DumpKernelStack(os, GetTid(), " kernel: ", false); 898f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers DumpNativeStack(os, GetTid(), " native: ", false); 899f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers } 900f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers UniquePtr<Context> context(Context::Create()); 901f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers StackDumpVisitor dumper(os, const_cast<Thread*>(this), context.get(), !throwing_OutOfMemoryError_); 902f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers dumper.WalkStack(); 903f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers } else { 904f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers os << "Not able to dump stack of thread that isn't suspended"; 905f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers } 906e27955ca3ca960928d4dbd6cb79711fce06950b3Elliott Hughes} 907e27955ca3ca960928d4dbd6cb79711fce06950b3Elliott Hughes 908be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughesvoid Thread::ThreadExitCallback(void* arg) { 909be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes Thread* self = reinterpret_cast<Thread*>(arg); 9106a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes if (self->thread_exit_check_count_ == 0) { 9116a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes LOG(WARNING) << "Native thread exiting without having called DetachCurrentThread (maybe it's going to use a pthread_key_create destructor?): " << *self; 9120878d654e7be8c9666579e22522704d8887415ccIan Rogers CHECK(is_started_); 9136a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes CHECK_PTHREAD_CALL(pthread_setspecific, (Thread::pthread_key_self_, self), "reattach self"); 9146a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes self->thread_exit_check_count_ = 1; 9156a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes } else { 9166a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes LOG(FATAL) << "Native thread exited without calling DetachCurrentThread: " << *self; 9176a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes } 918b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro} 919b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 920be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughesvoid Thread::Startup() { 9210878d654e7be8c9666579e22522704d8887415ccIan Rogers CHECK(!is_started_); 9220878d654e7be8c9666579e22522704d8887415ccIan Rogers is_started_ = true; 92300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers { 9246d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // MutexLock to keep annotalysis happy. 9256d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // 9266d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // Note we use NULL for the thread because Thread::Current can 9276d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // return garbage since (is_started_ == true) and 9286d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // Thread::pthread_key_self_ is not yet initialized. 9296d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // This was seen on glibc. 9306d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom MutexLock mu(NULL, *Locks::thread_suspend_count_lock_); 931c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers resume_cond_ = new ConditionVariable("Thread resumption condition variable", 932c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers *Locks::thread_suspend_count_lock_); 93300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 93400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 935b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro // Allocate a TLS slot. 9368d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes CHECK_PTHREAD_CALL(pthread_key_create, (&Thread::pthread_key_self_, Thread::ThreadExitCallback), "self key"); 937b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 938b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro // Double-check the TLS slot allocation. 939b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro if (pthread_getspecific(pthread_key_self_) != NULL) { 9403d30d9b09c16542d41554aad9f46ec9109ba5cb5Elliott Hughes LOG(FATAL) << "Newly-created pthread TLS slot is not NULL"; 941b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro } 942038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes} 943038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes 944038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughesvoid Thread::FinishStartup() { 945365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Runtime* runtime = Runtime::Current(); 946365c10235438607541fa2259a5fec48061b90bd8Ian Rogers CHECK(runtime->IsStarted()); 947b82b6878fb000d4731063b1bf15c39ff7c50b61fBrian Carlstrom 94801158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Finish attaching the main thread. 94900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(Thread::Current()); 950365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Thread::Current()->CreatePeer("main", false, runtime->GetMainThreadGroup()); 9519a6bae896a2f003d7216603bf29771d105c10ca4Jesse Wilson 952af8d15a3267343dec135cc6df1db740c0a5c7b52Elliott Hughes Runtime::Current()->GetClassLinker()->RunRootClinits(); 953b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro} 954b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 955c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughesvoid Thread::Shutdown() { 9560878d654e7be8c9666579e22522704d8887415ccIan Rogers CHECK(is_started_); 9570878d654e7be8c9666579e22522704d8887415ccIan Rogers is_started_ = false; 9588d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes CHECK_PTHREAD_CALL(pthread_key_delete, (Thread::pthread_key_self_), "self key"); 95933e9566255c426e7a2c8fca5b8a1b6a94a5d352cIan Rogers MutexLock mu(Thread::Current(), *Locks::thread_suspend_count_lock_); 9600878d654e7be8c9666579e22522704d8887415ccIan Rogers if (resume_cond_ != NULL) { 9610878d654e7be8c9666579e22522704d8887415ccIan Rogers delete resume_cond_; 9620878d654e7be8c9666579e22522704d8887415ccIan Rogers resume_cond_ = NULL; 9630878d654e7be8c9666579e22522704d8887415ccIan Rogers } 964c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes} 965c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes 96652673ffae0025d86f4023735581f19ebcc477487Ian RogersThread::Thread(bool daemon) 9670399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers : suspend_count_(0), 9680399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers card_table_(NULL), 9690399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers exception_(NULL), 9700399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers stack_end_(NULL), 9710399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers managed_stack_(), 9720399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers jni_env_(NULL), 9730399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers self_(NULL), 974cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers opeer_(NULL), 975cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers jpeer_(NULL), 9760399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers stack_begin_(NULL), 9770399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers stack_size_(0), 9780399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers thin_lock_id_(0), 9790399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers tid_(0), 980e62934d85fbc2d935afdad57eeade39ecbd7440aElliott Hughes wait_mutex_(new Mutex("a thread wait mutex")), 981c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers wait_cond_(new ConditionVariable("a thread wait condition variable", *wait_mutex_)), 9828daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes wait_monitor_(NULL), 9838daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes interrupted_(false), 984dc33ad5db2dc6ed9b76d5219888626a604debbe1Elliott Hughes wait_next_(NULL), 9858e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes monitor_enter_object_(NULL), 986dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes top_sirt_(NULL), 987dc33ad5db2dc6ed9b76d5219888626a604debbe1Elliott Hughes runtime_(NULL), 98885d1545e985ac689db4bad7849880e843707c862Elliott Hughes class_loader_override_(NULL), 989418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes long_jump_context_(NULL), 990726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes throwing_OutOfMemoryError_(false), 9910399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers debug_suspend_count_(0), 992e343b76af81a005ef64f5e75a555389fd9147dabjeffhao debug_invoke_req_(new DebugInvokeReq), 99362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers deoptimization_shadow_frame_(NULL), 99462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers instrumentation_stack_(new std::deque<instrumentation::InstrumentationStackFrame>), 9950399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers name_(new std::string(kThreadNameDuringStartup)), 99652673ffae0025d86f4023735581f19ebcc477487Ian Rogers daemon_(daemon), 99700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers pthread_self_(0), 99852673ffae0025d86f4023735581f19ebcc477487Ian Rogers no_thread_suspension_(0), 9996a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes last_no_thread_suspension_cause_(NULL), 1000858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier checkpoint_function_(0), 10016a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes thread_exit_check_count_(0) { 1002f5a7a476e7ea63e094ff0f011dccc170607e6f6bElliott Hughes CHECK_EQ((sizeof(Thread) % 4), 0U) << sizeof(Thread); 100330e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers state_and_flags_.as_struct.flags = 0; 100430e173f6da202e4caa37ceb477e2fbbe09cec990Ian Rogers state_and_flags_.as_struct.state = kNative; 1005ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes memset(&held_mutexes_[0], 0, sizeof(held_mutexes_)); 1006dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes} 1007dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes 10087dc5166ea740359d381097a7ab382c1dd404055fElliott Hughesbool Thread::IsStillStarting() const { 10097dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // You might think you can check whether the state is kStarting, but for much of thread startup, 101080537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes // the thread is in kNative; it might also be in kVmWait. 10117dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // You might think you can check whether the peer is NULL, but the peer is actually created and 10127dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // assigned fairly early on, and needs to be. 10137dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // It turns out that the last thing to change is the thread name; that's a good proxy for "has 10147dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // this thread _ever_ entered kRunnable". 101580537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes return (jpeer_ == NULL && opeer_ == NULL) || (*name_ == kThreadNameDuringStartup); 10167dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes} 10177dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes 101800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::AssertNoPendingException() const { 101900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (UNLIKELY(IsExceptionPending())) { 102000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(Thread::Current()); 102162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Throwable* exception = GetException(NULL); 102200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(FATAL) << "No pending exception expected: " << exception->Dump(); 102300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 102400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 102500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 10262dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersstatic void MonitorExitVisitor(const mirror::Object* object, void* arg) NO_THREAD_SAFETY_ANALYSIS { 102700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Thread* self = reinterpret_cast<Thread*>(arg); 10282dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* entered_monitor = const_cast<mirror::Object*>(object); 102900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (self->HoldsLock(entered_monitor)) { 103000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(WARNING) << "Calling MonitorExit on object " 103100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << object << " (" << PrettyTypeOf(object) << ")" 103200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << " left locked by native thread " 103300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << *Thread::Current() << " which is detaching"; 103400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers entered_monitor->MonitorExit(self); 103500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 103602b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes} 103702b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 1038c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughesvoid Thread::Destroy() { 1039120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self = this; 1040120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers DCHECK_EQ(self, Thread::Current()); 104102b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 1042cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (opeer_ != NULL) { 1043cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedObjectAccess soa(self); 1044120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // We may need to call user-supplied managed code, do this before final clean-up. 1045cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers HandleUncaughtExceptions(soa); 1046cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers RemoveFromThreadGroup(soa); 1047534da072d3db3beecbd74e5aa23d630d73695f2cElliott Hughes 10483c50a4b4ba6d7d9369ee9a0bd6d30bf4c9c79bb0Anwar Ghuloum // this.nativePeer = 0; 10493c50a4b4ba6d7d9369ee9a0bd6d30bf4c9c79bb0Anwar Ghuloum soa.DecodeField(WellKnownClasses::java_lang_Thread_nativePeer)->SetInt(opeer_, 0); 1050cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers Dbg::PostThreadDeath(self); 105102b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 1052cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers // Thread.join() is implemented as an Object.wait() on the Thread.lock object. Signal anyone 1053cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers // who is waiting. 10542dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* lock = 10552dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers soa.DecodeField(WellKnownClasses::java_lang_Thread_lock)->GetObject(opeer_); 1056038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes // (This conditional is only needed for tests, where Thread.lock won't have been set.) 1057cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (lock != NULL) { 105805f3057d6a4d23d712092ccd36a531590bff323bIan Rogers ObjectLock locker(self, lock); 105905f3057d6a4d23d712092ccd36a531590bff323bIan Rogers locker.Notify(); 10605f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 10615f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 1062120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 1063120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // On thread detach, all monitors entered with JNI MonitorEnter are automatically exited. 1064120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (jni_env_ != NULL) { 1065120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->monitors.VisitRoots(MonitorExitVisitor, self); 1066120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 1067c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes} 106802b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 1069c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott HughesThread::~Thread() { 1070cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (jni_env_ != NULL && jpeer_ != NULL) { 1071dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier // If pthread_create fails we don't have a jni env here. 1072cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers jni_env_->DeleteGlobalRef(jpeer_); 1073cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers jpeer_ = NULL; 1074dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier } 1075cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers opeer_ = NULL; 1076dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier 1077c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes delete jni_env_; 107802b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes jni_env_ = NULL; 107902b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 1080dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier CHECK_NE(GetState(), kRunnable); 1081dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier // We may be deleting a still born thread. 1082dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier SetStateUnsafe(kTerminated); 108385d1545e985ac689db4bad7849880e843707c862Elliott Hughes 108485d1545e985ac689db4bad7849880e843707c862Elliott Hughes delete wait_cond_; 108585d1545e985ac689db4bad7849880e843707c862Elliott Hughes delete wait_mutex_; 108685d1545e985ac689db4bad7849880e843707c862Elliott Hughes 1087c928de90ad22ecdf83c18a07008409595f13d3b1Ian Rogers if (long_jump_context_ != NULL) { 1088c928de90ad22ecdf83c18a07008409595f13d3b1Ian Rogers delete long_jump_context_; 1089c928de90ad22ecdf83c18a07008409595f13d3b1Ian Rogers } 1090475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes 1091475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes delete debug_invoke_req_; 1092725a957985171d712d5c048cc3d00ff14968784bjeffhao delete instrumentation_stack_; 1093899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes delete name_; 1094d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes 1095d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes TearDownAlternateSignalStack(); 1096c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes} 1097c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes 1098cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogersvoid Thread::HandleUncaughtExceptions(ScopedObjectAccess& soa) { 1099accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes if (!IsExceptionPending()) { 1100accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes return; 1101accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes } 1102cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedLocalRef<jobject> peer(jni_env_, soa.AddLocalReference<jobject>(opeer_)); 1103cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedThreadStateChange tsc(this, kNative); 1104120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 1105accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Get and clear the exception. 1106120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedLocalRef<jthrowable> exception(jni_env_, jni_env_->ExceptionOccurred()); 1107120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->ExceptionClear(); 1108accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1109accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // If the thread has its own handler, use that. 1110120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedLocalRef<jobject> handler(jni_env_, 1111cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers jni_env_->GetObjectField(peer.get(), 1112120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers WellKnownClasses::java_lang_Thread_uncaughtHandler)); 1113120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (handler.get() == NULL) { 1114accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Otherwise use the thread group's default handler. 1115cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers handler.reset(jni_env_->GetObjectField(peer.get(), WellKnownClasses::java_lang_Thread_group)); 1116accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes } 1117accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1118accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Call the handler. 1119120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->CallVoidMethod(handler.get(), 1120120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers WellKnownClasses::java_lang_Thread$UncaughtExceptionHandler_uncaughtException, 1121cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers peer.get(), exception.get()); 1122accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1123accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // If the handler threw, clear that exception too. 1124120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->ExceptionClear(); 1125a215526d5c789cbef0f81a1f9aba22541a841ccaElliott Hughes} 1126a215526d5c789cbef0f81a1f9aba22541a841ccaElliott Hughes 1127cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogersvoid Thread::RemoveFromThreadGroup(ScopedObjectAccess& soa) { 11284514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom // this.group.removeThread(this); 11294514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom // group can be null if we're in the compiler or a test. 11302dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* ogroup = soa.DecodeField(WellKnownClasses::java_lang_Thread_group)->GetObject(opeer_); 1131cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (ogroup != NULL) { 1132cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedLocalRef<jobject> group(soa.Env(), soa.AddLocalReference<jobject>(ogroup)); 1133cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedLocalRef<jobject> peer(soa.Env(), soa.AddLocalReference<jobject>(opeer_)); 1134cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedThreadStateChange tsc(soa.Self(), kNative); 1135120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers jni_env_->CallVoidMethod(group.get(), WellKnownClasses::java_lang_ThreadGroup_removeThread, 1136cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers peer.get()); 11374514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom } 11384514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom} 1139accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1140408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogerssize_t Thread::NumSirtReferences() { 1141a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers size_t count = 0; 114240381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom for (StackIndirectReferenceTable* cur = top_sirt_; cur; cur = cur->GetLink()) { 1143a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers count += cur->NumberOfReferences(); 1144a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers } 1145a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers return count; 1146a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers} 1147a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers 1148cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogersbool Thread::SirtContains(jobject obj) const { 11492dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object** sirt_entry = reinterpret_cast<mirror::Object**>(obj); 115040381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom for (StackIndirectReferenceTable* cur = top_sirt_; cur; cur = cur->GetLink()) { 115140381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom if (cur->Contains(sirt_entry)) { 1152a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers return true; 1153a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers } 1154a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers } 11550399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // JNI code invoked from portable code uses shadow frames rather than the SIRT. 11560399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return managed_stack_.ShadowFramesContain(sirt_entry); 115728f1a147d77ec772db98bed890b50a9ddcff2365TDYa} 115828f1a147d77ec772db98bed890b50a9ddcff2365TDYa 11592dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersvoid Thread::SirtVisitRoots(RootVisitor* visitor, void* arg) { 116040381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom for (StackIndirectReferenceTable* cur = top_sirt_; cur; cur = cur->GetLink()) { 11618dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao size_t num_refs = cur->NumberOfReferences(); 11628dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao for (size_t j = 0; j < num_refs; j++) { 11632dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* object = cur->GetReference(j); 11645e73f9c8990819054f8e0a60061ee8beff1e024aBrian Carlstrom if (object != NULL) { 11655e73f9c8990819054f8e0a60061ee8beff1e024aBrian Carlstrom visitor(object, arg); 11665e73f9c8990819054f8e0a60061ee8beff1e024aBrian Carlstrom } 11678dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao } 11688dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao } 11698dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao} 11708dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao 11712dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersmirror::Object* Thread::DecodeJObject(jobject obj) const { 117281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers Locks::mutator_lock_->AssertSharedHeld(this); 1173408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers if (obj == NULL) { 1174408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers return NULL; 1175408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1176408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers IndirectRef ref = reinterpret_cast<IndirectRef>(obj); 1177408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers IndirectRefKind kind = GetIndirectRefKind(ref); 11782dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* result; 11794f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers // The "kinds" below are sorted by the frequency we expect to encounter them. 11804f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (kind == kLocal) { 11814f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers IndirectReferenceTable& locals = jni_env_->locals; 11824f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers result = const_cast<mirror::Object*>(locals.Get(ref)); 11834f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers } else if (kind == kSirtOrInvalid) { 1184408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // TODO: make stack indirect reference table lookup more efficient 1185408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Check if this is a local reference in the SIRT 11864f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (LIKELY(SirtContains(obj))) { 11872dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers result = *reinterpret_cast<mirror::Object**>(obj); // Read from SIRT 1188c2dc62d1c9241dfe880a81698713c314b13aa63fElliott Hughes } else if (Runtime::Current()->GetJavaVM()->work_around_app_jni_bugs) { 1189408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Assume an invalid local reference is actually a direct pointer. 11902dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers result = reinterpret_cast<mirror::Object*>(obj); 1191408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } else { 1192a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes result = kInvalidIndirectRefObject; 1193408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 11944f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers } else if (kind == kGlobal) { 11954f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers JavaVMExt* vm = Runtime::Current()->GetJavaVM(); 11964f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers IndirectReferenceTable& globals = vm->globals; 11974f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers MutexLock mu(const_cast<Thread*>(this), vm->globals_lock); 11984f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers result = const_cast<mirror::Object*>(globals.Get(ref)); 11994f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers } else { 12004f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers DCHECK_EQ(kind, kWeakGlobal); 12014f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers JavaVMExt* vm = Runtime::Current()->GetJavaVM(); 12024f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers IndirectReferenceTable& weak_globals = vm->weak_globals; 12034f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers MutexLock mu(const_cast<Thread*>(this), vm->weak_globals_lock); 12044f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers result = const_cast<mirror::Object*>(weak_globals.Get(ref)); 12054f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (result == kClearedJniWeakGlobal) { 12064f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers // This is a special case where it's okay to return NULL. 12074f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers return NULL; 12084f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers } 1209408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1210408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers 12114f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (UNLIKELY(result == NULL)) { 12123f6635a2c84d645002f651c312d53f8348646c1fElliott Hughes JniAbortF(NULL, "use of deleted %s %p", ToStr<IndirectRefKind>(kind).c_str(), obj); 1213a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes } else { 12144f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (kIsDebugBuild && (result != kInvalidIndirectRefObject)) { 1215b3bd5f07884f5a1f2b84224363b1372d7c28d447Elliott Hughes Runtime::Current()->GetHeap()->VerifyObject(result); 1216a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes } 1217408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1218408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers return result; 1219408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers} 1220408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers 122181d425b0b232962441616f8b14f73620bffef5e5Ian Rogers// Implements java.lang.Thread.interrupted. 122281d425b0b232962441616f8b14f73620bffef5e5Ian Rogersbool Thread::Interrupted() { 122350b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers MutexLock mu(Thread::Current(), *wait_mutex_); 122481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers bool interrupted = interrupted_; 122581d425b0b232962441616f8b14f73620bffef5e5Ian Rogers interrupted_ = false; 122681d425b0b232962441616f8b14f73620bffef5e5Ian Rogers return interrupted; 122781d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 122881d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 122981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers// Implements java.lang.Thread.isInterrupted. 123081d425b0b232962441616f8b14f73620bffef5e5Ian Rogersbool Thread::IsInterrupted() { 123150b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers MutexLock mu(Thread::Current(), *wait_mutex_); 123281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers return interrupted_; 123381d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 123481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 123581d425b0b232962441616f8b14f73620bffef5e5Ian Rogersvoid Thread::Interrupt() { 1236c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers Thread* self = Thread::Current(); 1237c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers MutexLock mu(self, *wait_mutex_); 123881d425b0b232962441616f8b14f73620bffef5e5Ian Rogers if (interrupted_) { 123981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers return; 124081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers } 124181d425b0b232962441616f8b14f73620bffef5e5Ian Rogers interrupted_ = true; 1242c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers NotifyLocked(self); 124381d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 124481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 124581d425b0b232962441616f8b14f73620bffef5e5Ian Rogersvoid Thread::Notify() { 1246c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers Thread* self = Thread::Current(); 1247c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers MutexLock mu(self, *wait_mutex_); 1248c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers NotifyLocked(self); 124981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 125081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 1251c604d731730b43231f63040c8db1d58304da0cf3Ian Rogersvoid Thread::NotifyLocked(Thread* self) { 125281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers if (wait_monitor_ != NULL) { 1253c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers wait_cond_->Signal(self); 125481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers } 125581d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 125681d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 12570399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass CountStackDepthVisitor : public StackVisitor { 12589b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao public: 12597a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers CountStackDepthVisitor(Thread* thread) 1260b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 12617a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers : StackVisitor(thread, NULL), 126208fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes depth_(0), skip_depth_(0), skipping_(true) {} 1263d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 1264b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 126529f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes // We want to skip frames up to and including the exception's constructor. 12669086572fa809d1a19d886b467e4da3ce42016982Ian Rogers // Note we also skip the frame if it doesn't have a method (namely the callee 12679086572fa809d1a19d886b467e4da3ce42016982Ian Rogers // save frame) 12682dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod* m = GetMethod(); 12690399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (skipping_ && !m->IsRuntimeMethod() && 12702dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers !mirror::Throwable::GetJavaLangThrowable()->IsAssignableFrom(m->GetDeclaringClass())) { 127129f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes skipping_ = false; 127229f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 127329f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes if (!skipping_) { 12740399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (!m->IsRuntimeMethod()) { // Ignore runtime frames (in particular callee save). 12756b0870dfaaa2e69a900ad7ed88e4e1d3697445aaIan Rogers ++depth_; 12766b0870dfaaa2e69a900ad7ed88e4e1d3697445aaIan Rogers } 127729f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } else { 127829f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes ++skip_depth_; 127929f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 1280530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 12819b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 12829b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 12839b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao int GetDepth() const { 1284aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers return depth_; 12859b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 12869b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 128729f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes int GetSkipDepth() const { 128829f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes return skip_depth_; 128929f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 129029f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes 12919b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao private: 1292aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers uint32_t depth_; 129329f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes uint32_t skip_depth_; 129429f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes bool skipping_; 12959b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao}; 12969b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 12970399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass BuildInternalStackTraceVisitor : public StackVisitor { 12989b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao public: 12997a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers explicit BuildInternalStackTraceVisitor(Thread* self, Thread* thread, int skip_depth) 13007a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers : StackVisitor(thread, NULL), self_(self), 130108fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes skip_depth_(skip_depth), count_(0), dex_pc_trace_(NULL), method_trace_(NULL) {} 1302283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers 13031f5393447b9f45be7918042d9ee7b521376de866Ian Rogers bool Init(int depth) 1304b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1305aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Allocate method trace with an extra slot that will hold the PC trace 13062dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::ObjectArray<mirror::Object> > 13071f5393447b9f45be7918042d9ee7b521376de866Ian Rogers method_trace(self_, 13082dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers Runtime::Current()->GetClassLinker()->AllocObjectArray<mirror::Object>(self_, 13092dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers depth + 1)); 13100399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (method_trace.get() == NULL) { 1311283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers return false; 1312726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes } 13132dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::IntArray* dex_pc_trace = mirror::IntArray::Alloc(self_, depth); 13140399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (dex_pc_trace == NULL) { 1315283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers return false; 1316726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes } 1317aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Save PC trace in last element of method trace, also places it into the 1318aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // object graph. 13190399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers method_trace->Set(depth, dex_pc_trace); 13200399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Set the Object*s and assert that no thread suspension is now possible. 132152673ffae0025d86f4023735581f19ebcc477487Ian Rogers const char* last_no_suspend_cause = 13221f5393447b9f45be7918042d9ee7b521376de866Ian Rogers self_->StartAssertNoThreadSuspension("Building internal stack trace"); 132352673ffae0025d86f4023735581f19ebcc477487Ian Rogers CHECK(last_no_suspend_cause == NULL) << last_no_suspend_cause; 13240399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers method_trace_ = method_trace.get(); 13250399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers dex_pc_trace_ = dex_pc_trace; 1326283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers return true; 13279b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 13289b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 13290399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers virtual ~BuildInternalStackTraceVisitor() { 133052673ffae0025d86f4023735581f19ebcc477487Ian Rogers if (method_trace_ != NULL) { 13311f5393447b9f45be7918042d9ee7b521376de866Ian Rogers self_->EndAssertNoThreadSuspension(NULL); 133252673ffae0025d86f4023735581f19ebcc477487Ian Rogers } 13330399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 13349b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 1335b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 13360399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (method_trace_ == NULL || dex_pc_trace_ == NULL) { 1337530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; // We're probably trying to fillInStackTrace for an OutOfMemoryError. 1338726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes } 133929f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes if (skip_depth_ > 0) { 134029f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes skip_depth_--; 1341530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 134229f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 13432dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod* m = GetMethod(); 13440399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (m->IsRuntimeMethod()) { 13450399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return true; // Ignore runtime frames (in particular callee save). 13466b0870dfaaa2e69a900ad7ed88e4e1d3697445aaIan Rogers } 13470399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers method_trace_->Set(count_, m); 13480399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers dex_pc_trace_->Set(count_, GetDexPc()); 1349aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers ++count_; 1350530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 13519b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 13529b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 13532dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::Object>* GetInternalStackTrace() const { 13540399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return method_trace_; 13559b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 13569b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 13579b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao private: 13581f5393447b9f45be7918042d9ee7b521376de866Ian Rogers Thread* const self_; 135929f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes // How many more frames to skip. 136029f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes int32_t skip_depth_; 13610399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Current position down stack trace. 1362aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers uint32_t count_; 13630399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Array of dex PC values. 13642dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::IntArray* dex_pc_trace_; 13650399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // An array of the methods on the stack, the last entry is a reference to the PC trace. 13662dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::Object>* method_trace_; 13679b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao}; 13689b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 136964b6d145fa53b8dfb07a8fc2426af13f155d5a4dIan Rogersjobject Thread::CreateInternalStackTrace(const ScopedObjectAccessUnchecked& soa) const { 1370aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Compute depth of stack 13717a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers CountStackDepthVisitor count_visitor(const_cast<Thread*>(this)); 13720399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers count_visitor.WalkStack(); 13739b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao int32_t depth = count_visitor.GetDepth(); 137429f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes int32_t skip_depth = count_visitor.GetSkipDepth(); 13754417536522fd2a9d8215d8672331984769c9520bShih-wei Liao 13761f5393447b9f45be7918042d9ee7b521376de866Ian Rogers // Build internal stack trace. 13777a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers BuildInternalStackTraceVisitor build_trace_visitor(soa.Self(), const_cast<Thread*>(this), 13787a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers skip_depth); 13791f5393447b9f45be7918042d9ee7b521376de866Ian Rogers if (!build_trace_visitor.Init(depth)) { 13801f5393447b9f45be7918042d9ee7b521376de866Ian Rogers return NULL; // Allocation failed. 1381283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers } 13820399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers build_trace_visitor.WalkStack(); 13832dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::Object>* trace = build_trace_visitor.GetInternalStackTrace(); 13847a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers if (kIsDebugBuild) { 13857a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers for (int32_t i = 0; i < trace->GetLength(); ++i) { 13867a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers CHECK(trace->Get(i) != NULL); 13877a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers } 13887a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers } 13897a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers return soa.AddLocalReference<jobjectArray>(trace); 1390aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers} 1391aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 139201158d7a57c8321370667a6045220237d16e0da8Elliott HughesjobjectArray Thread::InternalStackTraceToStackTraceElementArray(JNIEnv* env, jobject internal, 139301158d7a57c8321370667a6045220237d16e0da8Elliott Hughes jobjectArray output_array, int* stack_depth) { 1394aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Transition into runnable state to work on Object*/Array* 139500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(env); 1396aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Decode the internal stack trace into the depth, method trace and PC trace 13972dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::Object>* method_trace = 13982dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers soa.Decode<mirror::ObjectArray<mirror::Object>*>(internal); 13999074b99bfbd5419e340f138a018b673ce71f77e8Ian Rogers int32_t depth = method_trace->GetLength() - 1; 14002dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::IntArray* pc_trace = down_cast<mirror::IntArray*>(method_trace->Get(depth)); 1401aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 1402aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 1403aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 140401158d7a57c8321370667a6045220237d16e0da8Elliott Hughes jobjectArray result; 14052dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::StackTraceElement>* java_traces; 140601158d7a57c8321370667a6045220237d16e0da8Elliott Hughes if (output_array != NULL) { 140701158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Reuse the array we were given. 140801158d7a57c8321370667a6045220237d16e0da8Elliott Hughes result = output_array; 14092dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers java_traces = soa.Decode<mirror::ObjectArray<mirror::StackTraceElement>*>(output_array); 141001158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // ...adjusting the number of frames we'll write to not exceed the array length. 141101158d7a57c8321370667a6045220237d16e0da8Elliott Hughes depth = std::min(depth, java_traces->GetLength()); 141201158d7a57c8321370667a6045220237d16e0da8Elliott Hughes } else { 141301158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Create java_trace array and place in local reference table 141450b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers java_traces = class_linker->AllocStackTraceElementArray(soa.Self(), depth); 141530646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes if (java_traces == NULL) { 141630646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes return NULL; 141730646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 141800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers result = soa.AddLocalReference<jobjectArray>(java_traces); 141901158d7a57c8321370667a6045220237d16e0da8Elliott Hughes } 142001158d7a57c8321370667a6045220237d16e0da8Elliott Hughes 142101158d7a57c8321370667a6045220237d16e0da8Elliott Hughes if (stack_depth != NULL) { 142201158d7a57c8321370667a6045220237d16e0da8Elliott Hughes *stack_depth = depth; 142301158d7a57c8321370667a6045220237d16e0da8Elliott Hughes } 142455df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao 14256d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers MethodHelper mh; 14269b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao for (int32_t i = 0; i < depth; ++i) { 1427aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Prepare parameters for StackTraceElement(String cls, String method, String file, int line) 14282dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod* method = down_cast<mirror::AbstractMethod*>(method_trace->Get(i)); 14296d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers mh.ChangeMethod(method); 14300399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers uint32_t dex_pc = pc_trace->Get(i); 14310399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers int32_t line_number = mh.GetLineNumFromDexPC(dex_pc); 1432aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Allocate element, potentially triggering GC 143340381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom // TODO: reuse class_name_object via Class::name_? 1434486013193c94b4321414c28ce9251911e14a0599Ian Rogers const char* descriptor = mh.GetDeclaringClassDescriptor(); 1435486013193c94b4321414c28ce9251911e14a0599Ian Rogers CHECK(descriptor != NULL); 1436486013193c94b4321414c28ce9251911e14a0599Ian Rogers std::string class_name(PrettyDescriptor(descriptor)); 14372dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::String> class_name_object(soa.Self(), 14382dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::String::AllocFromModifiedUtf8(soa.Self(), 14392dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers class_name.c_str())); 144040381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom if (class_name_object.get() == NULL) { 144140381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom return NULL; 144240381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom } 1443486013193c94b4321414c28ce9251911e14a0599Ian Rogers const char* method_name = mh.GetName(); 1444486013193c94b4321414c28ce9251911e14a0599Ian Rogers CHECK(method_name != NULL); 14452dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::String> method_name_object(soa.Self(), 14462dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::String::AllocFromModifiedUtf8(soa.Self(), 14472dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers method_name)); 14486d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers if (method_name_object.get() == NULL) { 14496d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers return NULL; 14506d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers } 1451486013193c94b4321414c28ce9251911e14a0599Ian Rogers const char* source_file = mh.GetDeclaringClassSourceFile(); 14522dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::String> source_name_object(soa.Self(), mirror::String::AllocFromModifiedUtf8(soa.Self(), 14532dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers source_file)); 14542dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::StackTraceElement* obj = mirror::StackTraceElement::Alloc(soa.Self(), 14552dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers class_name_object.get(), 14562dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers method_name_object.get(), 14572dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers source_name_object.get(), 14582dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers line_number); 145930646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes if (obj == NULL) { 146030646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes return NULL; 146130646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 1462aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers#ifdef MOVING_GARBAGE_COLLECTOR 1463aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Re-read after potential GC 146400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers java_traces = Decode<ObjectArray<Object>*>(soa.Env(), result); 146500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers method_trace = down_cast<ObjectArray<Object>*>(Decode<Object*>(soa.Env(), internal)); 1466aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers pc_trace = down_cast<IntArray*>(method_trace->Get(depth)); 1467aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers#endif 146855df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao java_traces->Set(i, obj); 146955df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao } 1470aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers return result; 147155df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao} 147255df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao 147362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::ThrowNewExceptionF(const ThrowLocation& throw_location, 147462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* exception_class_descriptor, const char* fmt, ...) { 1475a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes va_list args; 1476a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes va_start(args, fmt); 147762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNewExceptionV(throw_location, exception_class_descriptor, 147862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers fmt, args); 1479a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes va_end(args); 14804a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes} 14814a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes 148262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::ThrowNewExceptionV(const ThrowLocation& throw_location, 148362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* exception_class_descriptor, 148462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* fmt, va_list ap) { 14854a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes std::string msg; 14864a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes StringAppendV(&msg, fmt, ap); 148762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNewException(throw_location, exception_class_descriptor, msg.c_str()); 14885cb5ad27944efb08d4556b3c0d362302e37e832bElliott Hughes} 148937f7a40f6789bb287f287a9af00777af9d6428eeElliott Hughes 149062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::ThrowNewException(const ThrowLocation& throw_location, const char* exception_class_descriptor, 149162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* msg) { 149200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers AssertNoPendingException(); // Callers should either clear or call ThrowNewWrappedException. 149362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNewWrappedException(throw_location, exception_class_descriptor, msg); 149462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers} 149562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 149662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::ThrowNewWrappedException(const ThrowLocation& throw_location, 149762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* exception_class_descriptor, 149862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* msg) { 149962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK_EQ(this, Thread::Current()); 150062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Ensure we don't forget arguments over object allocation. 150162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::Object> saved_throw_this(this, throw_location.GetThis()); 150262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::AbstractMethod> saved_throw_method(this, throw_location.GetMethod()); 150362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Ignore the cause throw location. TODO: should we report this as a re-throw? 150462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::Throwable> cause(this, GetException(NULL)); 150562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ClearException(); 150662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers Runtime* runtime = Runtime::Current(); 1507a4f94740f9d66b21f4bcd3a225c434aa29cfa323Elliott Hughes 150862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::ClassLoader* cl = NULL; 150962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (throw_location.GetMethod() != NULL) { 151062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers cl = throw_location.GetMethod()->GetDeclaringClass()->GetClassLoader(); 151162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 151262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::Class> 151362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception_class(this, runtime->GetClassLinker()->FindClass(exception_class_descriptor, cl)); 151462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (UNLIKELY(exception_class.get() == NULL)) { 151530646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes CHECK(IsExceptionPending()); 151662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers LOG(ERROR) << "No exception class " << PrettyDescriptor(exception_class_descriptor); 151730646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes return; 151830646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 151962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 152062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (UNLIKELY(!runtime->GetClassLinker()->EnsureInitialized(exception_class.get(), true, true))) { 152162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK(IsExceptionPending()); 152262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return; 152362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 152462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK(!runtime->IsStarted() || exception_class->IsThrowableClass()); 152562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::Throwable> exception(this, 152662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers down_cast<mirror::Throwable*>(exception_class->AllocObject(this))); 152762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 152862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Choose an appropriate constructor and set up the arguments. 152962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* signature; 153062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::String> msg_string(this, NULL); 153162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (msg != NULL) { 153262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Ensure we remember this and the method over the String allocation. 153362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers msg_string.reset(mirror::String::AllocFromModifiedUtf8(this, msg)); 153462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (UNLIKELY(msg_string.get() == NULL)) { 153562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CHECK(IsExceptionPending()); // OOME. 153662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return; 153762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 153862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (cause.get() == NULL) { 153962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers signature = "(Ljava/lang/String;)V"; 1540ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom } else { 154162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers signature = "(Ljava/lang/String;Ljava/lang/Throwable;)V"; 154262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 154362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 154462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (cause.get() == NULL) { 154562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers signature = "()V"; 154662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 154762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers signature = "(Ljava/lang/Throwable;)V"; 1548ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom } 1549ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom } 155062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::AbstractMethod* exception_init_method = 155162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception_class->FindDeclaredDirectMethod("<init>", signature); 155262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 155362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CHECK(exception_init_method != NULL) << "No <init>" << signature << " in " 155462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers << PrettyDescriptor(exception_class_descriptor); 155562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 155662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (UNLIKELY(!runtime->IsStarted())) { 155762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Something is trying to throw an exception without a started runtime, which is the common 155862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // case in the compiler. We won't be able to invoke the constructor of the exception, so set 155962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // the exception fields directly. 156062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (msg != NULL) { 156162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception->SetDetailMessage(msg_string.get()); 156262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 156362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (cause.get() != NULL) { 156462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception->SetCause(cause.get()); 156562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 156662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation gc_safe_throw_location(saved_throw_this.get(), saved_throw_method.get(), 156762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers throw_location.GetDexPc()); 156862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SetException(gc_safe_throw_location, exception.get()); 156962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 157062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ArgArray args("VLL", 3); 157162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers args.Append(reinterpret_cast<uint32_t>(exception.get())); 157262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (msg != NULL) { 157362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers args.Append(reinterpret_cast<uint32_t>(msg_string.get())); 157462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 157562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (cause.get() != NULL) { 157662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers args.Append(reinterpret_cast<uint32_t>(cause.get())); 157762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 157862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers JValue result; 157962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception_init_method->Invoke(this, args.GetArray(), args.GetNumBytes(), &result, 'V'); 158062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (LIKELY(!IsExceptionPending())) { 158162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation gc_safe_throw_location(saved_throw_this.get(), saved_throw_method.get(), 158262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers throw_location.GetDexPc()); 158362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SetException(gc_safe_throw_location, exception.get()); 158462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 158530646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 1586a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes} 1587a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes 15882ced6a534157d5d963693346904389c19775d2daElliott Hughesvoid Thread::ThrowOutOfMemoryError(const char* msg) { 15892ced6a534157d5d963693346904389c19775d2daElliott Hughes LOG(ERROR) << StringPrintf("Throwing OutOfMemoryError \"%s\"%s", 15902ced6a534157d5d963693346904389c19775d2daElliott Hughes msg, (throwing_OutOfMemoryError_ ? " (recursive case)" : "")); 159162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation throw_location = GetCurrentLocationForThrow(); 1592726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes if (!throwing_OutOfMemoryError_) { 1593726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes throwing_OutOfMemoryError_ = true; 159462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNewException(throw_location, "Ljava/lang/OutOfMemoryError;", msg); 159533e15bcb4c0873cbce9d039fbc9bc7f4cf257765Ian Rogers throwing_OutOfMemoryError_ = false; 1596418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes } else { 1597225f5a1df25241babd16cdba54056b9e2cd166a2Elliott Hughes Dump(LOG(ERROR)); // The pre-allocated OOME has no stack, so help out and log one. 159862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SetException(throw_location, Runtime::Current()->GetPreAllocatedOutOfMemoryError()); 1599418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes } 160079082e367845bbd68ec44ef2ddd1be8ef0e1550fElliott Hughes} 160179082e367845bbd68ec44ef2ddd1be8ef0e1550fElliott Hughes 1602498508c1187dc07d3eae5476784cde20f5224d93Elliott HughesThread* Thread::CurrentFromGdb() { 1603accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes return Thread::Current(); 1604accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes} 1605accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1606accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughesvoid Thread::DumpFromGdb() const { 16076b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom std::ostringstream ss; 16086b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom Dump(ss); 1609955724179c6c739524f610023287f56b24dc31deElliott Hughes std::string str(ss.str()); 16106b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom // log to stderr for debugging command line processes 16116b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom std::cerr << str; 16126b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom#ifdef HAVE_ANDROID_OS 16136b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom // log to logcat for debugging frameworks processes 16146b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom LOG(INFO) << str; 16156b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom#endif 1616accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes} 1617accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 161898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughesstruct EntryPointInfo { 161998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes uint32_t offset; 162098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes const char* name; 162198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes}; 162298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes#define ENTRY_POINT_INFO(x) { ENTRYPOINT_OFFSET(x), #x } 162398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughesstatic const EntryPointInfo gThreadEntryPointInfo[] = { 162498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pAllocArrayFromCode), 162598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pAllocArrayFromCodeWithAccessCheck), 162698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pAllocObjectFromCode), 162798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pAllocObjectFromCodeWithAccessCheck), 162898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pCheckAndAllocArrayFromCode), 162998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pCheckAndAllocArrayFromCodeWithAccessCheck), 163098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInstanceofNonTrivialFromCode), 163198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pCanPutArrayElementFromCode), 163298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pCheckCastFromCode), 163398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInitializeStaticStorage), 163498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInitializeTypeAndVerifyAccessFromCode), 163598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInitializeTypeFromCode), 163698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pResolveStringFromCode), 163798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pSet32Instance), 163898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pSet32Static), 163998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pSet64Instance), 164098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pSet64Static), 164198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pSetObjInstance), 164298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pSetObjStatic), 164398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pGet32Instance), 164498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pGet32Static), 164598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pGet64Instance), 164698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pGet64Static), 164798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pGetObjInstance), 164898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pGetObjStatic), 164998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pHandleFillArrayDataFromCode), 165000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ENTRY_POINT_INFO(pJniMethodStart), 165100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ENTRY_POINT_INFO(pJniMethodStartSynchronized), 165200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ENTRY_POINT_INFO(pJniMethodEnd), 165300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ENTRY_POINT_INFO(pJniMethodEndSynchronized), 165400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ENTRY_POINT_INFO(pJniMethodEndWithReference), 165500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ENTRY_POINT_INFO(pJniMethodEndWithReferenceSynchronized), 165698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pLockObjectFromCode), 165798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pUnlockObjectFromCode), 165898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pCmpgDouble), 165998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pCmpgFloat), 166098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pCmplDouble), 166198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pCmplFloat), 166298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pFmod), 16630183dd7297709ef0beb31e120fc34fdd12f61915Ian Rogers ENTRY_POINT_INFO(pSqrt), 166498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pL2d), 166598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pFmodf), 166698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pL2f), 166798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pD2iz), 166898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pF2iz), 166998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pIdivmod), 167098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pD2l), 167198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pF2l), 167298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pLdiv), 167398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pLdivmod), 167498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pLmul), 167598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pShlLong), 167698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pShrLong), 167798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pUshrLong), 16780dc9d342bed34c3f1ce5268ff7a6e27cdb9490d9Ian Rogers ENTRY_POINT_INFO(pInterpreterToInterpreterEntry), 16790dc9d342bed34c3f1ce5268ff7a6e27cdb9490d9Ian Rogers ENTRY_POINT_INFO(pInterpreterToQuickEntry), 168098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pIndexOf), 168198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pMemcmp16), 168298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pStringCompareTo), 168398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pMemcpy), 16840aba0ba155bef7346bde19e53581200b89ae8a7aJeff Hao ENTRY_POINT_INFO(pPortableResolutionTrampolineFromCode), 16850aba0ba155bef7346bde19e53581200b89ae8a7aJeff Hao ENTRY_POINT_INFO(pQuickResolutionTrampolineFromCode), 168698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInvokeDirectTrampolineWithAccessCheck), 168798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInvokeInterfaceTrampoline), 168898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInvokeInterfaceTrampolineWithAccessCheck), 168998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInvokeStaticTrampolineWithAccessCheck), 169098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInvokeSuperTrampolineWithAccessCheck), 169198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pInvokeVirtualTrampolineWithAccessCheck), 169298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pCheckSuspendFromCode), 169398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pTestSuspendFromCode), 169498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pDeliverException), 169598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pThrowArrayBoundsFromCode), 169698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pThrowDivZeroFromCode), 169798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pThrowNoSuchMethodFromCode), 169898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pThrowNullPointerFromCode), 169998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes ENTRY_POINT_INFO(pThrowStackOverflowFromCode), 170098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes}; 170198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes#undef ENTRY_POINT_INFO 170298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes 170328fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughesvoid Thread::DumpThreadOffset(std::ostream& os, uint32_t offset, size_t size_of_pointers) { 170428fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes CHECK_EQ(size_of_pointers, 4U); // TODO: support 64-bit targets. 170598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes 170698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes#define DO_THREAD_OFFSET(x) if (offset == static_cast<uint32_t>(OFFSETOF_VOLATILE_MEMBER(Thread, x))) { os << # x; return; } 1707474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers DO_THREAD_OFFSET(state_and_flags_); 170898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(card_table_); 170998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(exception_); 171007ec8e17c978e3bda0202693e6432b56349a5867Ian Rogers DO_THREAD_OFFSET(opeer_); 171198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(jni_env_); 171298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(self_); 171398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(stack_end_); 171498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(suspend_count_); 171598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(thin_lock_id_); 17160399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers //DO_THREAD_OFFSET(top_of_managed_stack_); 17170399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers //DO_THREAD_OFFSET(top_of_managed_stack_pc_); 171898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes DO_THREAD_OFFSET(top_sirt_); 171928fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes#undef DO_THREAD_OFFSET 172098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes 172198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes size_t entry_point_count = arraysize(gThreadEntryPointInfo); 172298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes CHECK_EQ(entry_point_count * size_of_pointers, sizeof(EntryPoints)); 172398e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes uint32_t expected_offset = OFFSETOF_MEMBER(Thread, entrypoints_); 172498e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes for (size_t i = 0; i < entry_point_count; ++i) { 1725474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers CHECK_EQ(gThreadEntryPointInfo[i].offset, expected_offset) << gThreadEntryPointInfo[i].name; 172698e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes expected_offset += size_of_pointers; 172798e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes if (gThreadEntryPointInfo[i].offset == offset) { 172898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes os << gThreadEntryPointInfo[i].name; 172998e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes return; 173098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes } 173198e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes } 173298e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes os << offset; 173328fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes} 173428fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes 17350399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersstatic const bool kDebugExceptionDelivery = false; 17360399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass CatchBlockStackVisitor : public StackVisitor { 1737bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers public: 173862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CatchBlockStackVisitor(Thread* self, const ThrowLocation& throw_location, 173962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Throwable* exception, bool is_deoptimization) 1740b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 17417a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers : StackVisitor(self, self->GetLongJumpContext()), 174262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers self_(self), exception_(exception), is_deoptimization_(is_deoptimization), 174362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers to_find_(is_deoptimization ? NULL : exception->GetClass()), throw_location_(throw_location), 174462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers handler_quick_frame_(NULL), handler_quick_frame_pc_(0), handler_dex_pc_(0), 174562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers native_method_count_(0), 174662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers method_tracing_active_(is_deoptimization || 174762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers Runtime::Current()->GetInstrumentation()->AreExitStubsInstalled()), 174862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers instrumentation_frames_to_pop_(0), top_shadow_frame_(NULL), prev_shadow_frame_(NULL) { 174952673ffae0025d86f4023735581f19ebcc477487Ian Rogers // Exception not in root sets, can't allow GC. 175052673ffae0025d86f4023735581f19ebcc477487Ian Rogers last_no_assert_suspension_cause_ = self->StartAssertNoThreadSuspension("Finding catch block"); 175152673ffae0025d86f4023735581f19ebcc477487Ian Rogers } 175252673ffae0025d86f4023735581f19ebcc477487Ian Rogers 175352673ffae0025d86f4023735581f19ebcc477487Ian Rogers ~CatchBlockStackVisitor() { 175452673ffae0025d86f4023735581f19ebcc477487Ian Rogers LOG(FATAL) << "UNREACHABLE"; // Expected to take long jump. 175567375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers } 1756bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 175762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 17582dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod* method = GetMethod(); 1759530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes if (method == NULL) { 17600399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // This is the upcall, we remember the frame and last pc so that we may long jump to them. 17610399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers handler_quick_frame_pc_ = GetCurrentQuickFramePc(); 17620399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers handler_quick_frame_ = GetCurrentQuickFrame(); 176357b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return false; // End stack walk. 1764530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes } else { 176562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (UNLIKELY(method_tracing_active_ && 176662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers GetInstrumentationExitPc() == GetReturnPc())) { 176762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Keep count of the number of unwinds during instrumentation. 176862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers instrumentation_frames_to_pop_++; 17690399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 177062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (method->IsRuntimeMethod()) { 177162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Ignore callee save method. 177262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK(method->IsCalleeSaveMethod()); 177362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return true; 177462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else if (is_deoptimization_) { 177562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return HandleDeoptimization(method); 17760399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } else { 177762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return HandleTryItems(method); 1778bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers } 1779530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes } 178062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 178162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 178262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers bool HandleTryItems(mirror::AbstractMethod* method) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 178362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers uint32_t dex_pc = DexFile::kDexNoIndex; 178462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (method->IsNative()) { 178562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers native_method_count_++; 178662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 178762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers dex_pc = GetDexPc(); 178862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 1789530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes if (dex_pc != DexFile::kDexNoIndex) { 1790530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes uint32_t found_dex_pc = method->FindCatchBlock(to_find_, dex_pc); 1791530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes if (found_dex_pc != DexFile::kDexNoIndex) { 17920399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers handler_dex_pc_ = found_dex_pc; 17930c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers handler_quick_frame_pc_ = method->ToNativePc(found_dex_pc); 17940399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers handler_quick_frame_ = GetCurrentQuickFrame(); 179557b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return false; // End stack walk. 1796bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers } 17971a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 179857b86d47b66322693a070185fadfb43cb9c12eabIan Rogers return true; // Continue stack walk. 17991a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 18001a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 180162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers bool HandleDeoptimization(mirror::AbstractMethod* m) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 180262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers MethodHelper mh(m); 180362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const DexFile::CodeItem* code_item = mh.GetCodeItem(); 180462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CHECK(code_item != NULL); 180562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers uint16_t num_regs = code_item->registers_size_; 180662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers uint32_t dex_pc = GetDexPc(); 180762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const Instruction* inst = Instruction::At(code_item->insns_ + dex_pc); 180862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers uint32_t new_dex_pc = dex_pc + inst->SizeInCodeUnits(); 180962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ShadowFrame* new_frame = ShadowFrame::Create(num_regs, NULL, m, new_dex_pc); 181062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers verifier::MethodVerifier verifier(&mh.GetDexFile(), mh.GetDexCache(), mh.GetClassLoader(), 181162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mh.GetClassDefIndex(), code_item, 1812ee9889502a34a08741a6f8ecc02917202de9d773Jeff Hao m->GetDexMethodIndex(), m, m->GetAccessFlags(), false, true); 181362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers verifier.Verify(); 181462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers std::vector<int32_t> kinds = verifier.DescribeVRegs(dex_pc); 181562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers for(uint16_t reg = 0; reg < num_regs; reg++) { 181662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers VRegKind kind = static_cast<VRegKind>(kinds.at(reg * 2)); 181762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers switch (kind) { 181862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers case kUndefined: 181962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers new_frame->SetVReg(reg, 0xEBADDE09); 182062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers break; 182162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers case kConstant: 182262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers new_frame->SetVReg(reg, kinds.at((reg * 2) + 1)); 182362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers break; 182462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers case kReferenceVReg: 182562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers new_frame->SetVRegReference(reg, 182662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers reinterpret_cast<mirror::Object*>(GetVReg(m, reg, kind))); 182762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers break; 182862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers default: 182962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers new_frame->SetVReg(reg, GetVReg(m, reg, kind)); 183062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers break; 183162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 183262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 183362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (prev_shadow_frame_ != NULL) { 183462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers prev_shadow_frame_->SetLink(new_frame); 183562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 183662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers top_shadow_frame_ = new_frame; 183762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 183862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers prev_shadow_frame_ = new_frame; 183962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return true; 184062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 184162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 1842b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers void DoLongJump() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 18432dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod* catch_method = *handler_quick_frame_; 184462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (catch_method == NULL) { 184562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (kDebugExceptionDelivery) { 18460399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers LOG(INFO) << "Handler is upcall"; 184762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 184862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 184962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CHECK(!is_deoptimization_); 185062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (instrumentation_frames_to_pop_ > 0) { 185162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Don't pop the instrumentation frame of the catch handler. 185262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers instrumentation_frames_to_pop_--; 185362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 185462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (kDebugExceptionDelivery) { 18554445a7e3398a6143939168097a3aa275b734504dIan Rogers const DexFile& dex_file = *catch_method->GetDeclaringClass()->GetDexCache()->GetDexFile(); 18560399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers int line_number = dex_file.GetLineNumFromPC(catch_method, handler_dex_pc_); 18570399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers LOG(INFO) << "Handler: " << PrettyMethod(catch_method) << " (line: " << line_number << ")"; 18580399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 18590399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 186062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Put exception back in root set and clear throw location. 186162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers self_->SetException(ThrowLocation(), exception_); 186252673ffae0025d86f4023735581f19ebcc477487Ian Rogers self_->EndAssertNoThreadSuspension(last_no_assert_suspension_cause_); 186362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Do instrumentation events after allowing thread suspension again. 186462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers instrumentation::Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation(); 186562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers for (size_t i = 0; i < instrumentation_frames_to_pop_; ++i) { 186662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // We pop the instrumentation stack here so as not to corrupt it during the stack walk. 186762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers instrumentation->PopMethodForUnwind(self_, is_deoptimization_); 186862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 186962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (!is_deoptimization_) { 187062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers instrumentation->ExceptionCaughtEvent(self_, throw_location_, catch_method, handler_dex_pc_, 187162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception_); 187262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 187362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // TODO: proper return value. 187462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers self_->SetDeoptimizationShadowFrame(top_shadow_frame_); 187562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 18760399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Place context back on thread so it will be available when we continue. 18770399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers self_->ReleaseLongJumpContext(context_); 18780399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers context_->SetSP(reinterpret_cast<uintptr_t>(handler_quick_frame_)); 18790399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers CHECK_NE(handler_quick_frame_pc_, 0u); 18800399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers context_->SetPC(handler_quick_frame_pc_); 18810399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers context_->SmashCallerSaves(); 18820399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers context_->DoLongJump(); 18830399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 18840399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 18850399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers private: 188662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers Thread* const self_; 188762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Throwable* const exception_; 188862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const bool is_deoptimization_; 18890399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // The type of the exception catch block to find. 189062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Class* const to_find_; 189162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Location of the throw. 189262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const ThrowLocation& throw_location_; 18930399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Quick frame with found handler or last frame if no handler found. 18942dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod** handler_quick_frame_; 18950399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // PC to branch to for the handler. 18960399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers uintptr_t handler_quick_frame_pc_; 18970399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Associated dex PC. 18980399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers uint32_t handler_dex_pc_; 189967375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers // Number of native methods passed in crawl (equates to number of SIRTs to pop) 190067375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers uint32_t native_method_count_; 190157b86d47b66322693a070185fadfb43cb9c12eabIan Rogers // Is method tracing active? 190257b86d47b66322693a070185fadfb43cb9c12eabIan Rogers const bool method_tracing_active_; 190352673ffae0025d86f4023735581f19ebcc477487Ian Rogers // Support for nesting no thread suspension checks. 190452673ffae0025d86f4023735581f19ebcc477487Ian Rogers const char* last_no_assert_suspension_cause_; 190562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Number of frames to pop in long jump. 190662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers size_t instrumentation_frames_to_pop_; 190762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ShadowFrame* top_shadow_frame_; 190862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ShadowFrame* prev_shadow_frame_; 1909bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers}; 1910bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 191194d6df471a406a03bb1afba8ca3ae9c0fbf366b5jeffhaovoid Thread::QuickDeliverException() { 191262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Get exception from thread. 191362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation throw_location; 191462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Throwable* exception = GetException(&throw_location); 1915ff1ed4770bf7ff024a807b9f909b1a26abb78341Ian Rogers CHECK(exception != NULL); 191628ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers // Don't leave exception visible while we try to find the handler, which may cause class 1917d07986fad0d08cdf05505cf9230714a2cf0dd9aeElliott Hughes // resolution. 191828ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers ClearException(); 191962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers bool is_deoptimization = (exception == reinterpret_cast<mirror::Throwable*>(-1)); 192028ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (kDebugExceptionDelivery) { 192162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (!is_deoptimization) { 192262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::String* msg = exception->GetDetailMessage(); 192362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers std::string str_msg(msg != NULL ? msg->ToModifiedUtf8() : ""); 192462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DumpStack(LOG(INFO) << "Delivering exception: " << PrettyTypeOf(exception) 192562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers << ": " << str_msg << "\n"); 192662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 192762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DumpStack(LOG(INFO) << "Deoptimizing: "); 192862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 192928ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 193062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CatchBlockStackVisitor catch_finder(this, throw_location, exception, is_deoptimization); 19310399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers catch_finder.WalkStack(true); 19320399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers catch_finder.DoLongJump(); 19339a8a8889418e09bf2d4ae3f683fbb40a71c3c8f4Ian Rogers LOG(FATAL) << "UNREACHABLE"; 1934bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers} 1935bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 1936bdb0391258abc54bf77c676e36847d28a783bfe5Ian RogersContext* Thread::GetLongJumpContext() { 193785d1545e985ac689db4bad7849880e843707c862Elliott Hughes Context* result = long_jump_context_; 1938bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers if (result == NULL) { 1939bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers result = Context::Create(); 19400399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } else { 19410399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers long_jump_context_ = NULL; // Avoid context being shared. 19426702243ea2332b566d8e8b871cc9db0906d835adMathieu Chartier result->Reset(); 19431a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 1944bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers return result; 19451a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao} 19461a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 194762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersstruct CurrentMethodVisitor : public StackVisitor { 194862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CurrentMethodVisitor(Thread* thread, Context* context) 194962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 195062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers : StackVisitor(thread, context), this_object_(NULL), method_(NULL), dex_pc_(0) {} 195162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers virtual bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 195262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::AbstractMethod* m = GetMethod(); 195362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (m->IsRuntimeMethod()) { 195462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Continue if this is a runtime method. 195562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return true; 195662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 195762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (context_ != NULL) { 195862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers this_object_ = GetThisObject(); 19590399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 196062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers method_ = m; 196162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers dex_pc_ = GetDexPc(); 196262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return false; 196362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 196462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Object* this_object_; 196562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::AbstractMethod* method_; 196662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers uint32_t dex_pc_; 196762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers}; 19680399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 196962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersmirror::AbstractMethod* Thread::GetCurrentMethod(uint32_t* dex_pc) const { 197062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CurrentMethodVisitor visitor(const_cast<Thread*>(this), NULL); 19710399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers visitor.WalkStack(false); 19720399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (dex_pc != NULL) { 19730399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers *dex_pc = visitor.dex_pc_; 1974d07986fad0d08cdf05505cf9230714a2cf0dd9aeElliott Hughes } 19750399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return visitor.method_; 1976ee0d3fb2fbd736484fe8c3177a4e965ea86d1c65TDYa} 197733dc7717cd16592bcc825350bea6305be9eb2ea1jeffhao 197862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian RogersThrowLocation Thread::GetCurrentLocationForThrow() { 197962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers Context* context = GetLongJumpContext(); 198062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CurrentMethodVisitor visitor(this, context); 198162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers visitor.WalkStack(false); 198262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ReleaseLongJumpContext(context); 198362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return ThrowLocation(visitor.this_object_, visitor.method_, visitor.dex_pc_); 198462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers} 198562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 19862dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersbool Thread::HoldsLock(mirror::Object* object) { 19875f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes if (object == NULL) { 19885f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes return false; 19895f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 199024a3c2e9924e8765c4a9b4d383cb8f3b922f9c9fBrian Carlstrom return object->GetThinLockId() == thin_lock_id_; 19915f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes} 19925f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes 199340e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogers// RootVisitor parameters are: (const Object* obj, size_t vreg, const StackVisitor* visitor). 199440e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogerstemplate <typename RootVisitor> 19950399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass ReferenceMapVisitor : public StackVisitor { 1996d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers public: 19977a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers ReferenceMapVisitor(Thread* thread, Context* context, const RootVisitor& visitor) 1998b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 19997a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers : StackVisitor(thread, context), visitor_(visitor) {} 2000d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 2001b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 20026a4be3a6226cec645cf905dd352e44f7968a7fa4Brian Carlstrom if (false) { 20030399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers LOG(INFO) << "Visiting stack roots in " << PrettyMethod(GetMethod()) 20040399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers << StringPrintf("@ PC:%04x", GetDexPc()); 20056a4be3a6226cec645cf905dd352e44f7968a7fa4Brian Carlstrom } 20060399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ShadowFrame* shadow_frame = GetCurrentShadowFrame(); 20070399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (shadow_frame != NULL) { 20082dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod* m = shadow_frame->GetMethod(); 2009ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa size_t num_regs = shadow_frame->NumberOfVRegs(); 2010ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa if (m->IsNative() || shadow_frame->HasReferenceArray()) { 2011ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa // SIRT for JNI or References for interpreter. 2012ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa for (size_t reg = 0; reg < num_regs; ++reg) { 20132dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* ref = shadow_frame->GetVRegReference(reg); 2014ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa if (ref != NULL) { 2015ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa visitor_(ref, reg, this); 2016ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 2017ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 2018ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } else { 2019ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa // Java method. 2020ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa // Portable path use DexGcMap and store in Method.native_gc_map_. 2021ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa const uint8_t* gc_map = m->GetNativeGcMap(); 2022ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa CHECK(gc_map != NULL) << PrettyMethod(m); 2023ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa uint32_t gc_map_length = static_cast<uint32_t>((gc_map[0] << 24) | 2024ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa (gc_map[1] << 16) | 2025ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa (gc_map[2] << 8) | 2026ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa (gc_map[3] << 0)); 2027ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa verifier::DexPcToReferenceMap dex_gc_map(gc_map + 4, gc_map_length); 2028ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa uint32_t dex_pc = GetDexPc(); 2029ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa const uint8_t* reg_bitmap = dex_gc_map.FindBitMap(dex_pc); 2030ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa DCHECK(reg_bitmap != NULL); 2031ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa num_regs = std::min(dex_gc_map.RegWidth() * 8, num_regs); 2032ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa for (size_t reg = 0; reg < num_regs; ++reg) { 2033ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa if (TestBitmap(reg, reg_bitmap)) { 20342dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* ref = shadow_frame->GetVRegReference(reg); 2035ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa if (ref != NULL) { 2036ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa visitor_(ref, reg, this); 2037ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 2038ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 2039ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 2040ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 20410399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } else { 20422dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod* m = GetMethod(); 20430399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Process register map (which native and runtime methods don't have) 2044640495bd1aebcd0b429d59f62b57d0c984b2d8c6Ian Rogers if (!m->IsNative() && !m->IsRuntimeMethod() && !m->IsProxyMethod()) { 20450c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const uint8_t* native_gc_map = m->GetNativeGcMap(); 20460c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers CHECK(native_gc_map != NULL) << PrettyMethod(m); 20470c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers mh_.ChangeMethod(m); 20480c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const DexFile::CodeItem* code_item = mh_.GetCodeItem(); 2049caf7654a0e6c76c7489970b1a246fccf220f9982Elliott Hughes DCHECK(code_item != NULL) << PrettyMethod(m); // Can't be NULL or how would we compile its instructions? 20500c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers NativePcOffsetToReferenceMap map(native_gc_map); 20510399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers size_t num_regs = std::min(map.RegWidth() * 8, 20520399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers static_cast<size_t>(code_item->registers_size_)); 20530c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers if (num_regs > 0) { 20540c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const uint8_t* reg_bitmap = map.FindBitMap(GetNativePcOffset()); 20550c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers DCHECK(reg_bitmap != NULL); 20560c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const VmapTable vmap_table(m->GetVmapTableRaw()); 20570c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t core_spills = m->GetCoreSpillMask(); 20580c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t fp_spills = m->GetFpSpillMask(); 20590c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers size_t frame_size = m->GetFrameSizeInBytes(); 20600c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // For all dex registers in the bitmap 20612dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::AbstractMethod** cur_quick_frame = GetCurrentQuickFrame(); 20620c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers DCHECK(cur_quick_frame != NULL); 20630c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers for (size_t reg = 0; reg < num_regs; ++reg) { 20640c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // Does this register hold a reference? 20650c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers if (TestBitmap(reg, reg_bitmap)) { 20660c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t vmap_offset; 20672dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* ref; 20682bcb4a496b7aa00d996df3a070524f7568fb35a1Ian Rogers if (vmap_table.IsInContext(reg, vmap_offset, kReferenceVReg)) { 20692bcb4a496b7aa00d996df3a070524f7568fb35a1Ian Rogers uintptr_t val = GetGPR(vmap_table.ComputeRegister(core_spills, vmap_offset, 20702bcb4a496b7aa00d996df3a070524f7568fb35a1Ian Rogers kReferenceVReg)); 20712dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers ref = reinterpret_cast<mirror::Object*>(val); 20720c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers } else { 20732dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers ref = reinterpret_cast<mirror::Object*>(GetVReg(cur_quick_frame, code_item, 20742dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers core_spills, fp_spills, frame_size, 20752dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers reg)); 20766f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier } 20776f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 20786f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier if (ref != NULL) { 207940e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogers visitor_(ref, reg, this); 20800399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 2081d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 20824f894e385e8ac018f078be75fea0a45696626b15Shih-wei Liao } 2083d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 2084d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 2085d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 2086530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 2087d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 2088d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 2089d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers private: 20906f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier static bool TestBitmap(int reg, const uint8_t* reg_vector) { 2091d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers return ((reg_vector[reg / 8] >> (reg % 8)) & 0x01) != 0; 2092d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 2093d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 20946f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier // Visitor for when we visit a root. 209540e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogers const RootVisitor& visitor_; 20966f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 20970c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // A method helper we keep around to avoid dex file/cache re-computations. 20980c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers MethodHelper mh_; 2099d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers}; 2100d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 21016f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartierclass RootCallbackVisitor { 21026f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier public: 21032dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers RootCallbackVisitor(RootVisitor* visitor, void* arg) : visitor_(visitor), arg_(arg) { 21046f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21056f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier } 21066f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21072dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers void operator()(const mirror::Object* obj, size_t, const StackVisitor*) const { 21086f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier visitor_(obj, arg_); 21096f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier } 21106f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21116f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier private: 21122dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers RootVisitor* visitor_; 21136f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier void* arg_; 21146f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier}; 21156f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21166f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartierclass VerifyCallbackVisitor { 21176f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier public: 21182dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers VerifyCallbackVisitor(VerifyRootVisitor* visitor, void* arg) 21196f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier : visitor_(visitor), 21206f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier arg_(arg) { 21216f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier } 21226f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21232dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers void operator()(const mirror::Object* obj, size_t vreg, const StackVisitor* visitor) const { 212440e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogers visitor_(obj, arg_, vreg, visitor); 21256f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier } 21266f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21276f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier private: 21282dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers VerifyRootVisitor* const visitor_; 212940e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogers void* const arg_; 21306f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier}; 21316f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21326f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartierstruct VerifyRootWrapperArg { 21332dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers VerifyRootVisitor* visitor; 21346f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier void* arg; 21356f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier}; 21366f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21372dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersstatic void VerifyRootWrapperCallback(const mirror::Object* root, void* arg) { 21386f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier VerifyRootWrapperArg* wrapperArg = reinterpret_cast<VerifyRootWrapperArg*>(arg); 21396f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier wrapperArg->visitor(root, wrapperArg->arg, 0, NULL); 21406f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier} 21416f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21422dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersvoid Thread::VerifyRoots(VerifyRootVisitor* visitor, void* arg) { 21436f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier // We need to map from a RootVisitor to VerifyRootVisitor, so pass in nulls for arguments we 21446f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier // don't have. 21456f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier VerifyRootWrapperArg wrapperArg; 21466f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier wrapperArg.arg = arg; 21476f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier wrapperArg.visitor = visitor; 21486f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 2149cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (opeer_ != NULL) { 2150cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers VerifyRootWrapperCallback(opeer_, &wrapperArg); 2151cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers } 21526f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier if (exception_ != NULL) { 21536f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier VerifyRootWrapperCallback(exception_, &wrapperArg); 21546f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier } 215562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers throw_location_.VisitRoots(VerifyRootWrapperCallback, &wrapperArg); 21566f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier if (class_loader_override_ != NULL) { 21576f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier VerifyRootWrapperCallback(class_loader_override_, &wrapperArg); 21586f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier } 21596f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier jni_env_->locals.VisitRoots(VerifyRootWrapperCallback, &wrapperArg); 21606f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier jni_env_->monitors.VisitRoots(VerifyRootWrapperCallback, &wrapperArg); 21616f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21626f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier SirtVisitRoots(VerifyRootWrapperCallback, &wrapperArg); 21636f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21646f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier // Visit roots on this thread's stack 21656f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier Context* context = GetLongJumpContext(); 21666f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier VerifyCallbackVisitor visitorToCallback(visitor, arg); 21677a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers ReferenceMapVisitor<VerifyCallbackVisitor> mapper(this, context, visitorToCallback); 21686f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier mapper.WalkStack(); 21696f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier ReleaseLongJumpContext(context); 217062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 217162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers std::deque<instrumentation::InstrumentationStackFrame>* instrumentation_stack = GetInstrumentationStack(); 217262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers typedef std::deque<instrumentation::InstrumentationStackFrame>::const_iterator It; 217362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers for (It it = instrumentation_stack->begin(), end = instrumentation_stack->end(); it != end; ++it) { 217462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Object* this_object = (*it).this_object_; 217562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (this_object != NULL) { 217662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers VerifyRootWrapperCallback(this_object, &wrapperArg); 217762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 217862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::AbstractMethod* method = (*it).method_; 217962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers VerifyRootWrapperCallback(method, &wrapperArg); 218062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 21816f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier} 21826f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 21832dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersvoid Thread::VisitRoots(RootVisitor* visitor, void* arg) { 2184cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers if (opeer_ != NULL) { 2185cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers visitor(opeer_, arg); 2186cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers } 2187d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes if (exception_ != NULL) { 2188d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes visitor(exception_, arg); 2189d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 219062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers throw_location_.VisitRoots(visitor, arg); 219140381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom if (class_loader_override_ != NULL) { 219240381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom visitor(class_loader_override_, arg); 219340381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom } 2194410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes jni_env_->locals.VisitRoots(visitor, arg); 2195410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes jni_env_->monitors.VisitRoots(visitor, arg); 21968dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao 21978dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao SirtVisitRoots(visitor, arg); 21988dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao 2199d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers // Visit roots on this thread's stack 22000399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers Context* context = GetLongJumpContext(); 22016f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier RootCallbackVisitor visitorToCallback(visitor, arg); 22027a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers ReferenceMapVisitor<RootCallbackVisitor> mapper(this, context, visitorToCallback); 22030399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers mapper.WalkStack(); 22040399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ReleaseLongJumpContext(context); 220562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 220662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers std::deque<instrumentation::InstrumentationStackFrame>* instrumentation_stack = GetInstrumentationStack(); 220762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers typedef std::deque<instrumentation::InstrumentationStackFrame>::const_iterator It; 220862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers for (It it = instrumentation_stack->begin(), end = instrumentation_stack->end(); it != end; ++it) { 220962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Object* this_object = (*it).this_object_; 221062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (this_object != NULL) { 221162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers visitor(this_object, arg); 221262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 221362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::AbstractMethod* method = (*it).method_; 221462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers visitor(method, arg); 221562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 2216410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes} 2217410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes 221804d7aa92bc5548bc4d272b9480614f06248194ccIan Rogersstatic void VerifyObject(const mirror::Object* root, void* arg) { 22191d54e73444e017d3a65234e0f193846f3e27472bIan Rogers gc::Heap* heap = reinterpret_cast<gc::Heap*>(arg); 222004d7aa92bc5548bc4d272b9480614f06248194ccIan Rogers heap->VerifyObject(root); 2221250455229aa0cc07bbd18174efe510bd52631a99jeffhao} 2222250455229aa0cc07bbd18174efe510bd52631a99jeffhao 222304d7aa92bc5548bc4d272b9480614f06248194ccIan Rogersvoid Thread::VerifyStackImpl() { 2224e66ac79b90a12b01b9d67ee9f7f586e638e67fabjeffhao UniquePtr<Context> context(Context::Create()); 22254eb68edeecc4d6641bcca2a40620631335e7cadcjeffhao RootCallbackVisitor visitorToCallback(VerifyObject, Runtime::Current()->GetHeap()); 222604d7aa92bc5548bc4d272b9480614f06248194ccIan Rogers ReferenceMapVisitor<RootCallbackVisitor> mapper(this, context.get(), visitorToCallback); 22270399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers mapper.WalkStack(); 2228250455229aa0cc07bbd18174efe510bd52631a99jeffhao} 2229250455229aa0cc07bbd18174efe510bd52631a99jeffhao 223000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers// Set the stack end to that to be used during a stack overflow 223100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::SetStackEndForStackOverflow() { 223200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // During stack overflow we allow use of the full stack 223300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (stack_end_ == stack_begin_) { 223400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DumpStack(std::cerr); 223500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(FATAL) << "Need to increase kStackOverflowReservedBytes (currently " 223600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << kStackOverflowReservedBytes << ")"; 223700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 223800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 223900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers stack_end_ = stack_begin_; 224000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 224100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 2242330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughesstd::ostream& operator<<(std::ostream& os, const Thread& thread) { 224300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers thread.ShortDump(os); 2244330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes return os; 2245330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes} 2246330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes 22478daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes} // namespace art 2248