thread.cc revision 43d8bb870fadd4775a8513a1df955cdf66ad4b92
18d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes/* 28d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * Copyright (C) 2011 The Android Open Source Project 38d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * 48d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * Licensed under the Apache License, Version 2.0 (the "License"); 58d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * you may not use this file except in compliance with the License. 68d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * You may obtain a copy of the License at 78d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * 88d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * http://www.apache.org/licenses/LICENSE-2.0 98d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * 108d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * Unless required by applicable law or agreed to in writing, software 118d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * distributed under the License is distributed on an "AS IS" BASIS, 128d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 138d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * See the License for the specific language governing permissions and 148d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * limitations under the License. 158d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes */ 16b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 17752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier#define ATRACE_TAG ATRACE_TAG_DALVIK 18752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier 19578bbdc684db8ed68e9fedbc678669d27fa68b6eBrian Carlstrom#include "thread.h" 20b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 21752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier#include <cutils/trace.h> 22b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers#include <pthread.h> 232acf36d8cfeb5ddb293904148aa70f25ef6d8845Elliott Hughes#include <signal.h> 24dbf05b722af99ba2fd2f4c4fc7eb6c3e9880e5d1Brian Carlstrom#include <sys/resource.h> 25dbf05b722af99ba2fd2f4c4fc7eb6c3e9880e5d1Brian Carlstrom#include <sys/time.h> 26a09576416788b916095739e43a16917e7948f3a4Elliott Hughes 27b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro#include <algorithm> 28dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes#include <bitset> 29eb4f614f2eb53b92ebd416fa418f550861655887Elliott Hughes#include <cerrno> 30a09576416788b916095739e43a16917e7948f3a4Elliott Hughes#include <iostream> 31b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro#include <list> 32b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 33166db04e259ca51838c311891598664deeed85adIan Rogers#include "arch/context.h" 3476b6167407c2b6f5d40ad895b2793a6b037f54b2Elliott Hughes#include "base/mutex.h" 35d45a1f5d1dd5bc9badfab3a8aee90c934d9f2227Sebastien Hertz#include "catch_finder.h" 36a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes#include "class_linker.h" 372dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "class_linker-inl.h" 38474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers#include "cutils/atomic.h" 39474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers#include "cutils/atomic-inline.h" 4046e251bf7200cc06f5a9a82ee2030e650f5e1443Elliott Hughes#include "debugger.h" 414f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers#include "dex_file-inl.h" 427655f29fabc0a12765de828914a18314382e5a35Ian Rogers#include "entrypoints/entrypoint_utils.h" 43d889178ec78930538d9d6a66c3df9ee9afaffbb4Mathieu Chartier#include "entrypoints/quick/quick_alloc_entrypoints.h" 440c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers#include "gc_map.h" 451d54e73444e017d3a65234e0f193846f3e27472bIan Rogers#include "gc/accounting/card_table-inl.h" 461d54e73444e017d3a65234e0f193846f3e27472bIan Rogers#include "gc/heap.h" 471d54e73444e017d3a65234e0f193846f3e27472bIan Rogers#include "gc/space/space.h" 48c5f7c91ab89055cffb573fff7e06dbdd860bccedElliott Hughes#include "jni_internal.h" 49ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom#include "mirror/art_field-inl.h" 50ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom#include "mirror/art_method-inl.h" 512dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/class-inl.h" 522dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/class_loader.h" 532dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/object_array-inl.h" 542dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "mirror/stack_trace_element.h" 558e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes#include "monitor.h" 566d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers#include "object_utils.h" 579a6bae896a2f003d7216603bf29771d105c10ca4Jesse Wilson#include "reflection.h" 58578bbdc684db8ed68e9fedbc678669d27fa68b6eBrian Carlstrom#include "runtime.h" 5900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers#include "scoped_thread_state_change.h" 6046e251bf7200cc06f5a9a82ee2030e650f5e1443Elliott Hughes#include "ScopedLocalRef.h" 613c539ffccabada93c404c0dfba8b52926ae06d0cAnwar Ghuloum#include "ScopedUtfChars.h" 621f5393447b9f45be7918042d9ee7b521376de866Ian Rogers#include "sirt_ref.h" 6368e76526e98432625464022cb26f66b9ef6f5af4Elliott Hughes#include "stack.h" 6468e76526e98432625464022cb26f66b9ef6f5af4Elliott Hughes#include "stack_indirect_reference_table.h" 65693ff61274cd2c9b8eb7e68c370f84a911b8ca52Ian Rogers#include "thread-inl.h" 668daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes#include "thread_list.h" 67a09576416788b916095739e43a16917e7948f3a4Elliott Hughes#include "utils.h" 68ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa#include "verifier/dex_gc_map.h" 694e30541a92381fb280cd0be9a1763b713ee4d64cMathieu Chartier#include "verify_object-inl.h" 701809a72a66d245ae598582d658b93a24ac3bf01eIan Rogers#include "vmap_table.h" 71eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes#include "well_known_classes.h" 72b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 73b557353b22c728eecbd1c68593b482622c7782a8Carl Shapironamespace art { 74b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 750878d654e7be8c9666579e22522704d8887415ccIan Rogersbool Thread::is_started_ = false; 76b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiropthread_key_t Thread::pthread_key_self_; 770aded089f565008ba5908e395e5914ca4f91f2deDave AllisonConditionVariable* Thread::resume_cond_ = nullptr; 78b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 797dc5166ea740359d381097a7ab382c1dd404055fElliott Hughesstatic const char* kThreadNameDuringStartup = "<native thread without managed peer>"; 807dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes 815d76c435082332ef79a22962386fa92a0870e378Ian Rogersvoid Thread::InitCardTable() { 82dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.card_table = Runtime::Current()->GetHeap()->GetCardTable()->GetBiasedBegin(); 835d76c435082332ef79a22962386fa92a0870e378Ian Rogers} 845d76c435082332ef79a22962386fa92a0870e378Ian Rogers 853ea0f42467790809fcfc9fc861605d465808090fElliott Hughesstatic void UnimplementedEntryPoint() { 863ea0f42467790809fcfc9fc861605d465808090fElliott Hughes UNIMPLEMENTED(FATAL); 873ea0f42467790809fcfc9fc861605d465808090fElliott Hughes} 883ea0f42467790809fcfc9fc861605d465808090fElliott Hughes 89848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogersvoid InitEntryPoints(InterpreterEntryPoints* ipoints, JniEntryPoints* jpoints, 90848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers PortableEntryPoints* ppoints, QuickEntryPoints* qpoints); 917655f29fabc0a12765de828914a18314382e5a35Ian Rogers 92848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogersvoid Thread::InitTlsEntryPoints() { 933ea0f42467790809fcfc9fc861605d465808090fElliott Hughes // Insert a placeholder so we can easily tell if we call an unimplemented entry point. 94dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers uintptr_t* begin = reinterpret_cast<uintptr_t*>(&tlsPtr_.interpreter_entrypoints); 95dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers uintptr_t* end = reinterpret_cast<uintptr_t*>(reinterpret_cast<uint8_t*>(begin) + 96dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers sizeof(tlsPtr_.quick_entrypoints)); 977655f29fabc0a12765de828914a18314382e5a35Ian Rogers for (uintptr_t* it = begin; it != end; ++it) { 987655f29fabc0a12765de828914a18314382e5a35Ian Rogers *it = reinterpret_cast<uintptr_t>(UnimplementedEntryPoint); 997655f29fabc0a12765de828914a18314382e5a35Ian Rogers } 100dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers InitEntryPoints(&tlsPtr_.interpreter_entrypoints, &tlsPtr_.jni_entrypoints, 101dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers &tlsPtr_.portable_entrypoints, &tlsPtr_.quick_entrypoints); 102c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes} 103c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes 1043b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchivoid Thread::ResetQuickAllocEntryPointsForThread() { 105dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers ResetQuickAllocEntryPoints(&tlsPtr_.quick_entrypoints); 1063b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchi} 1073b4c18933c24b8a33f38573c2ebcdb9aa16efeb5Hiroshi Yamauchi 10862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::SetDeoptimizationShadowFrame(ShadowFrame* sf) { 109dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.deoptimization_shadow_frame = sf; 1103ea4ec5629613013ad9b0d7a69abdb94491ac46fbuzbee} 1113ea4ec5629613013ad9b0d7a69abdb94491ac46fbuzbee 11262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::SetDeoptimizationReturnValue(const JValue& ret_val) { 113dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tls64_.deoptimization_return_value.SetJ(ret_val.GetJ()); 114306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers} 115306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers 116306057fd278d75bf3794bd5243a3b6652c487d18Ian RogersShadowFrame* Thread::GetAndClearDeoptimizationShadowFrame(JValue* ret_val) { 117dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers ShadowFrame* sf = tlsPtr_.deoptimization_shadow_frame; 118dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.deoptimization_shadow_frame = nullptr; 119dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers ret_val->SetJ(tls64_.deoptimization_return_value.GetJ()); 120306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers return sf; 121306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers} 122306057fd278d75bf3794bd5243a3b6652c487d18Ian Rogers 123caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstromvoid Thread::InitTid() { 124dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tls32_.tid = ::art::GetTid(); 125caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom} 126caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom 127caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstromvoid Thread::InitAfterFork() { 1288029cbe626a467b344ff84d86170d757aa12ecd4Elliott Hughes // One thread (us) survived the fork, but we have a new tid so we need to 1298029cbe626a467b344ff84d86170d757aa12ecd4Elliott Hughes // update the value stashed in this Thread*. 130caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom InitTid(); 131caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom} 132caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom 13378128a63b2615744760b7f8ab83df9764a5d4a95Brian Carlstromvoid* Thread::CreateCallback(void* arg) { 13493e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes Thread* self = reinterpret_cast<Thread*>(arg); 135120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime* runtime = Runtime::Current(); 1360aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (runtime == nullptr) { 137120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << "Thread attaching to non-existent runtime: " << *self; 1380aded089f565008ba5908e395e5914ca4f91f2deDave Allison return nullptr; 139120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 140120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers { 14150b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers // TODO: pass self to MutexLock - requires self to equal Thread::Current(), which is only true 14250b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers // after self->Init(). 1430aded089f565008ba5908e395e5914ca4f91f2deDave Allison MutexLock mu(nullptr, *Locks::runtime_shutdown_lock_); 144120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Check that if we got here we cannot be shutting down (as shutdown should never have started 145120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // while threads are being born). 146590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier CHECK(!runtime->IsShuttingDownLocked()); 147120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers self->Init(runtime->GetThreadList(), runtime->GetJavaVM()); 148120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime::Current()->EndThreadBirth(); 149120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 15047179f76e3f03fe3eb21dfb081d50733ca316371Elliott Hughes { 15100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(self); 152cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers 153cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers // Copy peer into self, deleting global reference when done. 154dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers CHECK(self->tlsPtr_.jpeer != nullptr); 155dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers self->tlsPtr_.opeer = soa.Decode<mirror::Object*>(self->tlsPtr_.jpeer); 156dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers self->GetJniEnv()->DeleteGlobalRef(self->tlsPtr_.jpeer); 157dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers self->tlsPtr_.jpeer = nullptr; 158cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers 159365c10235438607541fa2259a5fec48061b90bd8Ian Rogers { 1602dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::String> thread_name(self, self->GetThreadName(soa)); 161365c10235438607541fa2259a5fec48061b90bd8Ian Rogers self->SetThreadName(thread_name->ToModifiedUtf8().c_str()); 162365c10235438607541fa2259a5fec48061b90bd8Ian Rogers } 163365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Dbg::PostThreadStart(self); 16493e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 165365c10235438607541fa2259a5fec48061b90bd8Ian Rogers // Invoke the 'run' method of our java.lang.Thread. 166dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers mirror::Object* receiver = self->tlsPtr_.opeer; 167365c10235438607541fa2259a5fec48061b90bd8Ian Rogers jmethodID mid = WellKnownClasses::java_lang_Thread_run; 16853b8b09fc80329539585dcf43657bc5f4ecefdffIan Rogers InvokeVirtualOrInterfaceWithJValues(soa, receiver, mid, nullptr); 169365c10235438607541fa2259a5fec48061b90bd8Ian Rogers } 17000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Detach and delete self. 17100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Runtime::Current()->GetThreadList()->Unregister(self); 17293e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 1730aded089f565008ba5908e395e5914ca4f91f2deDave Allison return nullptr; 174b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro} 175b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 1762dd0e2cea360bc9206eb88ecc40d259e796c239dIan RogersThread* Thread::FromManagedThread(const ScopedObjectAccessUnchecked& soa, 1772dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* thread_peer) { 178ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtField* f = soa.DecodeField(WellKnownClasses::java_lang_Thread_nativePeer); 179ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers Thread* result = reinterpret_cast<Thread*>(static_cast<uintptr_t>(f->GetLong(thread_peer))); 18000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Sanity check that if we have a result it is either suspended or we hold the thread_list_lock_ 18100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // to stop it from going away. 18281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers if (kIsDebugBuild) { 18381d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(soa.Self(), *Locks::thread_suspend_count_lock_); 1840aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (result != nullptr && !result->IsSuspended()) { 18581d425b0b232962441616f8b14f73620bffef5e5Ian Rogers Locks::thread_list_lock_->AssertHeld(soa.Self()); 18681d425b0b232962441616f8b14f73620bffef5e5Ian Rogers } 18700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 18800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return result; 189761928d24e4e7ed7776b52243eaf9095ad35f448Elliott Hughes} 190761928d24e4e7ed7776b52243eaf9095ad35f448Elliott Hughes 19100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan RogersThread* Thread::FromManagedThread(const ScopedObjectAccessUnchecked& soa, jobject java_thread) { 1922dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers return FromManagedThread(soa, soa.Decode<mirror::Object*>(java_thread)); 19301158d7a57c8321370667a6045220237d16e0da8Elliott Hughes} 19401158d7a57c8321370667a6045220237d16e0da8Elliott Hughes 195ab7b9dcbfc4264a0bc4889c3e463ff88a67f6a30Elliott Hughesstatic size_t FixStackSize(size_t stack_size) { 1967502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // A stack size of zero means "use the default". 197d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes if (stack_size == 0) { 198d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes stack_size = Runtime::Current()->GetDefaultStackSize(); 199d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 20061e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 2016414a97a3c6dc101ae8ebc9480114d0c327e8e8dBrian Carlstrom // Dalvik used the bionic pthread default stack size for native threads, 2026414a97a3c6dc101ae8ebc9480114d0c327e8e8dBrian Carlstrom // so include that here to support apps that expect large native stacks. 2036414a97a3c6dc101ae8ebc9480114d0c327e8e8dBrian Carlstrom stack_size += 1 * MB; 2046414a97a3c6dc101ae8ebc9480114d0c327e8e8dBrian Carlstrom 2057502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // It's not possible to request a stack smaller than the system-defined PTHREAD_STACK_MIN. 2067502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes if (stack_size < PTHREAD_STACK_MIN) { 2077502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes stack_size = PTHREAD_STACK_MIN; 2087502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes } 2097502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 210f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison if (Runtime::Current()->ExplicitStackOverflowChecks()) { 211f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison // It's likely that callers are trying to ensure they have at least a certain amount of 212f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison // stack space, so we should add our reserved space on top of what they requested, rather 213f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison // than implicitly take it away from them. 214f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison stack_size += Thread::kStackOverflowReservedBytes; 215f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison } else { 216f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison // If we are going to use implicit stack checks, allocate space for the protected 217f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison // region at the bottom of the stack. 218f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison stack_size += Thread::kStackOverflowImplicitCheckSize; 219f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison } 2207502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 2217502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // Some systems require the stack size to be a multiple of the system page size, so round up. 2227502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes stack_size = RoundUp(stack_size, kPageSize); 2237502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 2247502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes return stack_size; 2257502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes} 2267502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 227f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison// Install a protected region in the stack. This is used to trigger a SIGSEGV if a stack 228f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison// overflow is detected. It is located right below the stack_end_. Just below that 229f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison// is the StackOverflow reserved region used when creating the StackOverflow 230f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison// exception. 231f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allisonvoid Thread::InstallImplicitProtection(bool is_main_stack) { 232dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers byte* pregion = tlsPtr_.stack_end; 233f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison 234f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison constexpr uint32_t kMarker = 0xdadadada; 235f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison uintptr_t *marker = reinterpret_cast<uintptr_t*>(pregion); 236f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison if (*marker == kMarker) { 237f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison // The region has already been set up. 238f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison return; 239f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison } 240f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison // Add marker so that we can detect a second attempt to do this. 241f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison *marker = kMarker; 242f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison 243f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison pregion -= kStackOverflowProtectedSize; 244f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison 245f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison // Touch the pages in the region to map them in. Otherwise mprotect fails. Only 246f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison // need to do this on the main stack. 247f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison if (is_main_stack) { 248f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison memset(pregion, 0x55, kStackOverflowProtectedSize); 249f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison } 250f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison VLOG(threads) << "installing stack protected region at " << std::hex << 251f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison static_cast<void*>(pregion) << " to " << 252f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison static_cast<void*>(pregion + kStackOverflowProtectedSize - 1); 253f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison 254f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison if (mprotect(pregion, kStackOverflowProtectedSize, PROT_NONE) == -1) { 255f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison LOG(FATAL) << "Unable to create protected region in stack for implicit overflow check. Reason:" 256f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison << strerror(errno); 257f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison } 258f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison} 259f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison 260120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogersvoid Thread::CreateNativeThread(JNIEnv* env, jobject java_peer, size_t stack_size, bool is_daemon) { 2610aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(java_peer != nullptr); 262120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self = static_cast<JNIEnvExt*>(env)->self; 263120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime* runtime = Runtime::Current(); 264dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier 265120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Atomically start the birth of the thread ensuring the runtime isn't shutting down. 266120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers bool thread_start_during_shutdown = false; 267365c10235438607541fa2259a5fec48061b90bd8Ian Rogers { 268120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers MutexLock mu(self, *Locks::runtime_shutdown_lock_); 269590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier if (runtime->IsShuttingDownLocked()) { 270120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers thread_start_during_shutdown = true; 271120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } else { 272120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers runtime->StartThreadBirth(); 273120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 27400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 275120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (thread_start_during_shutdown) { 276120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedLocalRef<jclass> error_class(env, env->FindClass("java/lang/InternalError")); 277120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers env->ThrowNew(error_class.get(), "Thread starting during runtime shutdown"); 278120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers return; 279120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 280120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 281120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* child_thread = new Thread(is_daemon); 282120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Use global JNI ref to hold peer live while child thread starts. 283dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers child_thread->tlsPtr_.jpeer = env->NewGlobalRef(java_peer); 284120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers stack_size = FixStackSize(stack_size); 285120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 2863c50a4b4ba6d7d9369ee9a0bd6d30bf4c9c79bb0Anwar Ghuloum // Thread.start is synchronized, so we know that nativePeer is 0, and know that we're not racing to 287120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // assign it. 288ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers env->SetLongField(java_peer, WellKnownClasses::java_lang_Thread_nativePeer, 289ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers reinterpret_cast<jlong>(child_thread)); 29000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 29100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers pthread_t new_pthread; 29200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers pthread_attr_t attr; 29300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_PTHREAD_CALL(pthread_attr_init, (&attr), "new thread"); 29400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_PTHREAD_CALL(pthread_attr_setdetachstate, (&attr, PTHREAD_CREATE_DETACHED), "PTHREAD_CREATE_DETACHED"); 29500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_PTHREAD_CALL(pthread_attr_setstacksize, (&attr, stack_size), stack_size); 296120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers int pthread_create_result = pthread_create(&new_pthread, &attr, Thread::CreateCallback, child_thread); 29700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers CHECK_PTHREAD_CALL(pthread_attr_destroy, (&attr), "new thread"); 29800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 299120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (pthread_create_result != 0) { 30000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // pthread_create(3) failed, so clean up. 3019efc3e03982f042c3ce67cc2c64dbe0f0986119bBrian Carlstrom { 302120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers MutexLock mu(self, *Locks::runtime_shutdown_lock_); 303120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers runtime->EndThreadBirth(); 304120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 305120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Manually delete the global reference since Thread::Init will not have been run. 306dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers env->DeleteGlobalRef(child_thread->tlsPtr_.jpeer); 307dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers child_thread->tlsPtr_.jpeer = nullptr; 308120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers delete child_thread; 3090aded089f565008ba5908e395e5914ca4f91f2deDave Allison child_thread = nullptr; 310120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // TODO: remove from thread group? 311ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers env->SetLongField(java_peer, WellKnownClasses::java_lang_Thread_nativePeer, 0); 312120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers { 3139efc3e03982f042c3ce67cc2c64dbe0f0986119bBrian Carlstrom std::string msg(StringPrintf("pthread_create (%s stack) failed: %s", 3149efc3e03982f042c3ce67cc2c64dbe0f0986119bBrian Carlstrom PrettySize(stack_size).c_str(), strerror(pthread_create_result))); 315120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedObjectAccess soa(env); 316120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers soa.Self()->ThrowOutOfMemoryError(msg.c_str()); 3179efc3e03982f042c3ce67cc2c64dbe0f0986119bBrian Carlstrom } 318365c10235438607541fa2259a5fec48061b90bd8Ian Rogers } 31993e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes} 32061e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 321120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogersvoid Thread::Init(ThreadList* thread_list, JavaVMExt* java_vm) { 322462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // This function does all the initialization that must be run by the native thread it applies to. 323462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // (When we create a new thread from managed code, we allocate the Thread* in Thread::Create so 324462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // we can handshake with the corresponding native thread when it's ready.) Check this native 325462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes // thread hasn't been through here already... 3260aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(Thread::Current() == nullptr); 327d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes SetUpAlternateSignalStack(); 32893e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes InitCpu(); 329848871b4d8481229c32e0d048a9856e5a9a17ef9Ian Rogers InitTlsEntryPoints(); 330b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison RemoveSuspendTrigger(); 3315d76c435082332ef79a22962386fa92a0870e378Ian Rogers InitCardTable(); 33201ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers InitTid(); 333120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // Set pthread_self_ ahead of pthread_setspecific, that makes Thread::Current function, this 334120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // avoids pthread_self_ ever being invalid when discovered from Thread::Current(). 335dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.pthread_self = pthread_self(); 3360878d654e7be8c9666579e22522704d8887415ccIan Rogers CHECK(is_started_); 3376a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes CHECK_PTHREAD_CALL(pthread_setspecific, (Thread::pthread_key_self_, this), "attach self"); 338120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers DCHECK_EQ(Thread::Current(), this); 339a5780dad67556297c8ca5f2608c53b193e6c4514Elliott Hughes 340dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tls32_.thin_lock_thread_id = thread_list->AllocThreadId(this); 341120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers InitStackHwm(); 3425fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 343dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.jni_env = new JNIEnvExt(this, java_vm); 344120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers thread_list->Register(this); 34593e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes} 34693e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 347664bebf92eb2151b9b570ccd42ac4b6056c3ea9cMathieu ChartierThread* Thread::Attach(const char* thread_name, bool as_daemon, jobject thread_group, 348664bebf92eb2151b9b570ccd42ac4b6056c3ea9cMathieu Chartier bool create_peer) { 349120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self; 350120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime* runtime = Runtime::Current(); 3510aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (runtime == nullptr) { 352120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << "Thread attaching to non-existent runtime: " << thread_name; 3530aded089f565008ba5908e395e5914ca4f91f2deDave Allison return nullptr; 354120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 355120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers { 3560aded089f565008ba5908e395e5914ca4f91f2deDave Allison MutexLock mu(nullptr, *Locks::runtime_shutdown_lock_); 357590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier if (runtime->IsShuttingDownLocked()) { 358120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << "Thread attaching while runtime is shutting down: " << thread_name; 3590aded089f565008ba5908e395e5914ca4f91f2deDave Allison return nullptr; 360120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } else { 361120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime::Current()->StartThreadBirth(); 362120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers self = new Thread(as_daemon); 363120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers self->Init(runtime->GetThreadList(), runtime->GetJavaVM()); 364120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Runtime::Current()->EndThreadBirth(); 365120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 366120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 3675fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 368dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier CHECK_NE(self->GetState(), kRunnable); 369dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier self->SetState(kNative); 370726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes 371cac6cc72c3331257fa6437b36a131e5d551e2f3cElliott Hughes // If we're the main thread, ClassLinker won't be created until after we're attached, 372cac6cc72c3331257fa6437b36a131e5d551e2f3cElliott Hughes // so that thread needs a two-stage attach. Regular threads don't need this hack. 373d9c67be7c116875d96b31e640ad47d587b205605Elliott Hughes // In the compiler, all threads need this hack, because no-one's going to be getting 374d9c67be7c116875d96b31e640ad47d587b205605Elliott Hughes // a native peer! 375664bebf92eb2151b9b570ccd42ac4b6056c3ea9cMathieu Chartier if (create_peer) { 376462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes self->CreatePeer(thread_name, as_daemon, thread_group); 37706e3ad4a651c2c58dba5e865cd06d2f98462bf1dElliott Hughes } else { 37806e3ad4a651c2c58dba5e865cd06d2f98462bf1dElliott Hughes // These aren't necessary, but they improve diagnostics for unit tests & command-line tools. 3790aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (thread_name != nullptr) { 380dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers self->tlsPtr_.name->assign(thread_name); 38122869a9026a08b544eca4cefd67386d347e30d2cElliott Hughes ::art::SetThreadName(thread_name); 38222869a9026a08b544eca4cefd67386d347e30d2cElliott Hughes } 38336e0a955e48e9357bff1eab783e493107ebfff62Ian Rogers } 384cac6cc72c3331257fa6437b36a131e5d551e2f3cElliott Hughes 3855fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes return self; 3865fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes} 3875fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 388365c10235438607541fa2259a5fec48061b90bd8Ian Rogersvoid Thread::CreatePeer(const char* name, bool as_daemon, jobject thread_group) { 389365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Runtime* runtime = Runtime::Current(); 390365c10235438607541fa2259a5fec48061b90bd8Ian Rogers CHECK(runtime->IsStarted()); 391dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers JNIEnv* env = tlsPtr_.jni_env; 3925fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 3930aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (thread_group == nullptr) { 394365c10235438607541fa2259a5fec48061b90bd8Ian Rogers thread_group = runtime->GetMainThreadGroup(); 395462c94449720e0dc6b93d7138d835d345ccf67aeElliott Hughes } 396726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes ScopedLocalRef<jobject> thread_name(env, env->NewStringUTF(name)); 3978daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes jint thread_priority = GetNativePriority(); 3985fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes jboolean thread_is_daemon = as_daemon; 3995fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 400eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes ScopedLocalRef<jobject> peer(env, env->AllocObject(WellKnownClasses::java_lang_Thread)); 4010aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (peer.get() == nullptr) { 402dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier CHECK(IsExceptionPending()); 403dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier return; 4045d4bdc29737a693027daaf6ed3f0792368eb4baeIan Rogers } 405cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers { 406cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedObjectAccess soa(this); 407dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.opeer = soa.Decode<mirror::Object*>(peer.get()); 408cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers } 409eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes env->CallNonvirtualVoidMethod(peer.get(), 410eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes WellKnownClasses::java_lang_Thread, 411eac766769e3114a078c188ea26776a81f0edb3cfElliott Hughes WellKnownClasses::java_lang_Thread_init, 412365c10235438607541fa2259a5fec48061b90bd8Ian Rogers thread_group, thread_name.get(), thread_priority, thread_is_daemon); 41300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers AssertNoPendingException(); 414d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 415120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self = this; 416120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers DCHECK_EQ(self, Thread::Current()); 417dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers env->SetLongField(peer.get(), WellKnownClasses::java_lang_Thread_nativePeer, 418dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers reinterpret_cast<jlong>(self)); 419120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 420120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers ScopedObjectAccess soa(self); 4212dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::String> peer_thread_name(soa.Self(), GetThreadName(soa)); 4220aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (peer_thread_name.get() == nullptr) { 42300fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom // The Thread constructor should have set the Thread.name to a 42400fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom // non-null value. However, because we can run without code 42500fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom // available (in the compiler, in tests), we manually assign the 42600fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom // fields the constructor should have set. 427d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz if (runtime->IsActiveTransaction()) { 428d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz InitPeer<true>(soa, thread_is_daemon, thread_group, thread_name.get(), thread_priority); 429d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz } else { 430d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz InitPeer<false>(soa, thread_is_daemon, thread_group, thread_name.get(), thread_priority); 431d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz } 43200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers peer_thread_name.reset(GetThreadName(soa)); 43300fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom } 434225f5a1df25241babd16cdba54056b9e2cd166a2Elliott Hughes // 'thread_name' may have been null, so don't trust 'peer_thread_name' to be non-null. 4350aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (peer_thread_name.get() != nullptr) { 436899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes SetThreadName(peer_thread_name->ToModifiedUtf8().c_str()); 43700fae585c6e4a37b964c77f557fbf84f11e2d930Brian Carlstrom } 43861e019d291583029c01b61b93bea750f2b663c37Carl Shapiro} 43961e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 440d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertztemplate<bool kTransactionActive> 441d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertzvoid Thread::InitPeer(ScopedObjectAccess& soa, jboolean thread_is_daemon, jobject thread_group, 442d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz jobject thread_name, jint thread_priority) { 443d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz soa.DecodeField(WellKnownClasses::java_lang_Thread_daemon)-> 444dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers SetBoolean<kTransactionActive>(tlsPtr_.opeer, thread_is_daemon); 445d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz soa.DecodeField(WellKnownClasses::java_lang_Thread_group)-> 446dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers SetObject<kTransactionActive>(tlsPtr_.opeer, soa.Decode<mirror::Object*>(thread_group)); 447d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz soa.DecodeField(WellKnownClasses::java_lang_Thread_name)-> 448dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers SetObject<kTransactionActive>(tlsPtr_.opeer, soa.Decode<mirror::Object*>(thread_name)); 449d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz soa.DecodeField(WellKnownClasses::java_lang_Thread_priority)-> 450dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers SetInt<kTransactionActive>(tlsPtr_.opeer, thread_priority); 451d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz} 452d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz 453899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughesvoid Thread::SetThreadName(const char* name) { 454dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.name->assign(name); 455899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes ::art::SetThreadName(name); 456899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes Dbg::DdmSendThreadNotification(this, CHUNK_TYPE("THNM")); 457899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes} 458899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes 459be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughesvoid Thread::InitStackHwm() { 460dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers void* read_stack_base; 461dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers size_t read_stack_size; 462dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers GetThreadStack(tlsPtr_.pthread_self, &read_stack_base, &read_stack_size); 46336ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 46436ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // TODO: include this in the thread dumps; potentially useful in SIGQUIT output? 465dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers VLOG(threads) << StringPrintf("Native stack is at %p (%s)", read_stack_base, 466dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers PrettySize(read_stack_size).c_str()); 467e188419b971936086a188843378375f5ced13724Elliott Hughes 468dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.stack_begin = reinterpret_cast<byte*>(read_stack_base); 469dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.stack_size = read_stack_size; 47036ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 471dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers if (read_stack_size <= kStackOverflowReservedBytes) { 472dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers LOG(FATAL) << "Attempt to attach a thread with a too-small stack (" << read_stack_size 473dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers << " bytes)"; 474be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 475449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes 476e188419b971936086a188843378375f5ced13724Elliott Hughes // TODO: move this into the Linux GetThreadStack implementation. 477e188419b971936086a188843378375f5ced13724Elliott Hughes#if !defined(__APPLE__) 47836ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // If we're the main thread, check whether we were run with an unlimited stack. In that case, 47936ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // glibc will have reported a 2GB stack for our 32-bit process, and our stack overflow detection 48036ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // will be broken because we'll die long before we get close to 2GB. 481120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers bool is_main_thread = (::art::GetTid() == getpid()); 482120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers if (is_main_thread) { 48336ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes rlimit stack_limit; 48436ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes if (getrlimit(RLIMIT_STACK, &stack_limit) == -1) { 48536ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes PLOG(FATAL) << "getrlimit(RLIMIT_STACK) failed"; 48636ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes } 48736ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes if (stack_limit.rlim_cur == RLIM_INFINITY) { 48836ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // Find the default stack size for new threads... 48936ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes pthread_attr_t default_attributes; 49036ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes size_t default_stack_size; 49136ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_init, (&default_attributes), "default stack size query"); 49236ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_getstacksize, (&default_attributes, &default_stack_size), 49336ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes "default stack size query"); 49436ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_destroy, (&default_attributes), "default stack size query"); 49536ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 49636ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes // ...and use that as our limit. 497dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers size_t old_stack_size = read_stack_size; 498dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.stack_size = default_stack_size; 499dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.stack_begin += (old_stack_size - default_stack_size); 500faf4ba01738400f418b45c4323aa9e8e6b6ba2a0Elliott Hughes VLOG(threads) << "Limiting unlimited stack (reported as " << PrettySize(old_stack_size) << ")" 501dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers << " to " << PrettySize(default_stack_size) 502dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers << " with base " << reinterpret_cast<void*>(tlsPtr_.stack_begin); 50336ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes } 50436ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes } 505e188419b971936086a188843378375f5ced13724Elliott Hughes#endif 50636ecb789775eb5bd284ce5dd35d2e31e42354f24Elliott Hughes 507932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // Set stack_end_ to the bottom of the stack saving space of stack overflows 508f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison bool implicit_stack_check = !Runtime::Current()->ExplicitStackOverflowChecks(); 509f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison ResetDefaultStackEnd(implicit_stack_check); 510f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison 511f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison // Install the protected region if we are doing implicit overflow checks. 512f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison if (implicit_stack_check) { 513f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison if (is_main_thread) { 514f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison // The main thread has a 16K protected region at the bottom. We need 515f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison // to install our own region so we need to move the limits 516f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison // of the stack to make room for it. 517f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison constexpr uint32_t kDelta = 16 * KB; 518dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.stack_begin += kDelta; 519dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.stack_end += kDelta; 520dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.stack_size -= kDelta; 521f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison } 522f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison InstallImplicitProtection(is_main_thread); 523f943914730db8ad2ff03d49a2cacd31885d08fd7Dave Allison } 524449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes 525449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes // Sanity check. 526449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes int stack_variable; 527dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers CHECK_GT(&stack_variable, reinterpret_cast<void*>(tlsPtr_.stack_end)); 528be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes} 529be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 53000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::ShortDump(std::ostream& os) const { 53100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers os << "Thread["; 532d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers if (GetThreadId() != 0) { 53300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // If we're in kStarting, we won't have a thin lock id or tid yet. 534d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers os << GetThreadId() 53500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << ",tid=" << GetTid() << ','; 536e0918556e7551de638870dcad3f2023f94f85a50Elliott Hughes } 537474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers os << GetState() 53800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << ",Thread*=" << this 539dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers << ",peer=" << tlsPtr_.opeer 540dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers << ",\"" << *tlsPtr_.name << "\"" 54100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << "]"; 542d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes} 543d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 54400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::Dump(std::ostream& os) const { 54500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DumpState(os); 54600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers DumpStack(os); 54700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 54800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 5492dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersmirror::String* Thread::GetThreadName(const ScopedObjectAccessUnchecked& soa) const { 550ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtField* f = soa.DecodeField(WellKnownClasses::java_lang_Thread_name); 551dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers return (tlsPtr_.opeer != nullptr) ? reinterpret_cast<mirror::String*>(f->GetObject(tlsPtr_.opeer)) : nullptr; 552fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes} 553fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes 554ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughesvoid Thread::GetThreadName(std::string& name) const { 555dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers name.assign(*tlsPtr_.name); 556ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes} 557ffb465f23d9549dd591e6aa62e9250523cb00233Elliott Hughes 55857dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Haouint64_t Thread::GetCpuMicroTime() const { 55957dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao#if defined(HAVE_POSIX_CLOCKS) 56057dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao clockid_t cpu_clock_id; 561dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers pthread_getcpuclockid(tlsPtr_.pthread_self, &cpu_clock_id); 56257dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao timespec now; 56357dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao clock_gettime(cpu_clock_id, &now); 5640f6784737882199197796b67b99e5f1ded383beeIan Rogers return static_cast<uint64_t>(now.tv_sec) * UINT64_C(1000000) + now.tv_nsec / UINT64_C(1000); 56557dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao#else 56657dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao UNIMPLEMENTED(WARNING); 56757dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao return -1; 56857dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao#endif 56957dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao} 57057dac6ed61a0a25c14d4e2fabc84435578d42360Jeff Hao 571474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogersvoid Thread::AtomicSetFlag(ThreadFlag flag) { 572dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers android_atomic_or(flag, &tls32_.state_and_flags.as_int); 573474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers} 574474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers 575474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogersvoid Thread::AtomicClearFlag(ThreadFlag flag) { 576dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers android_atomic_and(-1 ^ flag, &tls32_.state_and_flags.as_int); 577474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers} 578474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers 57901ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers// Attempt to rectify locks so that we dump thread list with required locks before exiting. 58001ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogersstatic void UnsafeLogFatalForSuspendCount(Thread* self, Thread* thread) NO_THREAD_SAFETY_ANALYSIS { 581120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(ERROR) << *thread << " suspend count already zero."; 58201ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::thread_suspend_count_lock_->Unlock(self); 58301ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::mutator_lock_->IsSharedHeld(self)) { 58401ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::mutator_lock_->SharedTryLock(self); 58501ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::mutator_lock_->IsSharedHeld(self)) { 58601ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers LOG(WARNING) << "Dumping thread list without holding mutator_lock_"; 58701ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 58801ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 58901ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::thread_list_lock_->IsExclusiveHeld(self)) { 59001ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Locks::thread_list_lock_->TryLock(self); 59101ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers if (!Locks::thread_list_lock_->IsExclusiveHeld(self)) { 59201ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers LOG(WARNING) << "Dumping thread list without holding thread_list_lock_"; 59301ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 59401ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers } 59501ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers std::ostringstream ss; 59601ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers Runtime::Current()->GetThreadList()->DumpLocked(ss); 597120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers LOG(FATAL) << ss.str(); 59801ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers} 59901ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers 60001ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogersvoid Thread::ModifySuspendCount(Thread* self, int delta, bool for_debugger) { 6012966e13d504a72d55c62bf864e183ec80703c699Ian Rogers if (kIsDebugBuild) { 6022966e13d504a72d55c62bf864e183ec80703c699Ian Rogers DCHECK(delta == -1 || delta == +1 || delta == -tls32_.debug_suspend_count) 6032966e13d504a72d55c62bf864e183ec80703c699Ian Rogers << delta << " " << tls32_.debug_suspend_count << " " << this; 6042966e13d504a72d55c62bf864e183ec80703c699Ian Rogers DCHECK_GE(tls32_.suspend_count, tls32_.debug_suspend_count) << this; 6052966e13d504a72d55c62bf864e183ec80703c699Ian Rogers Locks::thread_suspend_count_lock_->AssertHeld(self); 6062966e13d504a72d55c62bf864e183ec80703c699Ian Rogers if (this != self && !IsSuspended()) { 6072966e13d504a72d55c62bf864e183ec80703c699Ian Rogers Locks::thread_list_lock_->AssertHeld(self); 6082966e13d504a72d55c62bf864e183ec80703c699Ian Rogers } 609cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers } 610dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers if (UNLIKELY(delta < 0 && tls32_.suspend_count <= 0)) { 61101ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers UnsafeLogFatalForSuspendCount(self, this); 61200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers return; 61300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 61401ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers 615dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tls32_.suspend_count += delta; 61600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (for_debugger) { 617dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tls32_.debug_suspend_count += delta; 61800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 61901ae5808367e641a983e3f8bb82b3e0d364cd03eIan Rogers 620dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers if (tls32_.suspend_count == 0) { 621474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers AtomicClearFlag(kSuspendRequest); 622474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers } else { 623474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers AtomicSetFlag(kSuspendRequest); 624b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison TriggerSuspend(); 625474b6da273c7ce6df50a4e51eb9929a77e1611c3Ian Rogers } 62600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 62700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 628752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartiervoid Thread::RunCheckpointFunction() { 6290aded089f565008ba5908e395e5914ca4f91f2deDave Allison Closure *checkpoints[kMaxCheckpoints]; 6300aded089f565008ba5908e395e5914ca4f91f2deDave Allison 6310aded089f565008ba5908e395e5914ca4f91f2deDave Allison // Grab the suspend_count lock and copy the current set of 6320aded089f565008ba5908e395e5914ca4f91f2deDave Allison // checkpoints. Then clear the list and the flag. The RequestCheckpoint 6330aded089f565008ba5908e395e5914ca4f91f2deDave Allison // function will also grab this lock so we prevent a race between setting 6340aded089f565008ba5908e395e5914ca4f91f2deDave Allison // the kCheckpointRequest flag and clearing it. 6350aded089f565008ba5908e395e5914ca4f91f2deDave Allison { 6360aded089f565008ba5908e395e5914ca4f91f2deDave Allison MutexLock mu(this, *Locks::thread_suspend_count_lock_); 6370aded089f565008ba5908e395e5914ca4f91f2deDave Allison for (uint32_t i = 0; i < kMaxCheckpoints; ++i) { 638dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers checkpoints[i] = tlsPtr_.checkpoint_functions[i]; 639dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.checkpoint_functions[i] = nullptr; 6400aded089f565008ba5908e395e5914ca4f91f2deDave Allison } 6410aded089f565008ba5908e395e5914ca4f91f2deDave Allison AtomicClearFlag(kCheckpointRequest); 6420aded089f565008ba5908e395e5914ca4f91f2deDave Allison } 6430aded089f565008ba5908e395e5914ca4f91f2deDave Allison 6440aded089f565008ba5908e395e5914ca4f91f2deDave Allison // Outside the lock, run all the checkpoint functions that 6450aded089f565008ba5908e395e5914ca4f91f2deDave Allison // we collected. 6460aded089f565008ba5908e395e5914ca4f91f2deDave Allison bool found_checkpoint = false; 6470aded089f565008ba5908e395e5914ca4f91f2deDave Allison for (uint32_t i = 0; i < kMaxCheckpoints; ++i) { 6480aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (checkpoints[i] != nullptr) { 6490aded089f565008ba5908e395e5914ca4f91f2deDave Allison ATRACE_BEGIN("Checkpoint function"); 6500aded089f565008ba5908e395e5914ca4f91f2deDave Allison checkpoints[i]->Run(this); 6510aded089f565008ba5908e395e5914ca4f91f2deDave Allison ATRACE_END(); 6520aded089f565008ba5908e395e5914ca4f91f2deDave Allison found_checkpoint = true; 6530aded089f565008ba5908e395e5914ca4f91f2deDave Allison } 6540aded089f565008ba5908e395e5914ca4f91f2deDave Allison } 6550aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(found_checkpoint); 656752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier} 657752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier 6580e4627e593bc39f8e3d89c31f8977d55054c07ccMathieu Chartierbool Thread::RequestCheckpoint(Closure* function) { 65959cde534aa295bad7de29472b3cce9576d7996a8Chris Dearman union StateAndFlags old_state_and_flags; 660dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers old_state_and_flags.as_int = tls32_.state_and_flags.as_int; 661d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers if (old_state_and_flags.as_struct.state != kRunnable) { 662d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers return false; // Fail, thread is suspended and so can't run a checkpoint. 663d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers } 6640aded089f565008ba5908e395e5914ca4f91f2deDave Allison 6650aded089f565008ba5908e395e5914ca4f91f2deDave Allison uint32_t available_checkpoint = kMaxCheckpoints; 6660aded089f565008ba5908e395e5914ca4f91f2deDave Allison for (uint32_t i = 0 ; i < kMaxCheckpoints; ++i) { 667dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers if (tlsPtr_.checkpoint_functions[i] == nullptr) { 6680aded089f565008ba5908e395e5914ca4f91f2deDave Allison available_checkpoint = i; 6690aded089f565008ba5908e395e5914ca4f91f2deDave Allison break; 6700aded089f565008ba5908e395e5914ca4f91f2deDave Allison } 6710aded089f565008ba5908e395e5914ca4f91f2deDave Allison } 6720aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (available_checkpoint == kMaxCheckpoints) { 6730aded089f565008ba5908e395e5914ca4f91f2deDave Allison // No checkpoint functions available, we can't run a checkpoint 6740aded089f565008ba5908e395e5914ca4f91f2deDave Allison return false; 675d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers } 676dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.checkpoint_functions[available_checkpoint] = function; 6770aded089f565008ba5908e395e5914ca4f91f2deDave Allison 678d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers // Checkpoint function installed now install flag bit. 679858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier // We must be runnable to request a checkpoint. 6805f51d4b80058236759fea1d932470a57f348c199Mathieu Chartier DCHECK_EQ(old_state_and_flags.as_struct.state, kRunnable); 68159cde534aa295bad7de29472b3cce9576d7996a8Chris Dearman union StateAndFlags new_state_and_flags; 68259cde534aa295bad7de29472b3cce9576d7996a8Chris Dearman new_state_and_flags.as_int = old_state_and_flags.as_int; 683858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier new_state_and_flags.as_struct.flags |= kCheckpointRequest; 6840aded089f565008ba5908e395e5914ca4f91f2deDave Allison int succeeded = android_atomic_acquire_cas(old_state_and_flags.as_int, new_state_and_flags.as_int, 685dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers &tls32_.state_and_flags.as_int); 686d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers if (UNLIKELY(succeeded != 0)) { 687d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers // The thread changed state before the checkpoint was installed. 688dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers CHECK_EQ(tlsPtr_.checkpoint_functions[available_checkpoint], function); 689dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.checkpoint_functions[available_checkpoint] = nullptr; 6900aded089f565008ba5908e395e5914ca4f91f2deDave Allison } else { 6910aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK_EQ(ReadFlag(kCheckpointRequest), true); 692b373e091eac39b1a79c11f2dcbd610af01e9e8a9Dave Allison TriggerSuspend(); 693d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers } 694858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier return succeeded == 0; 695858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier} 696858f1c5fd5e528d0b16040ced74d4636046a42d8Mathieu Chartier 69700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::FullSuspendCheck() { 69800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers VLOG(threads) << this << " self-suspending"; 699752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier ATRACE_BEGIN("Full suspend check"); 70000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Make thread appear suspended to other threads, release mutator_lock_. 70100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers TransitionFromRunnableToSuspended(kSuspended); 70200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers // Transition back to runnable noting requests to suspend, re-acquire share on mutator_lock_. 70300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers TransitionFromSuspendedToRunnable(); 704752a0e606afdc7aa4825ebbe62b187b8abba14ccMathieu Chartier ATRACE_END(); 70500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers VLOG(threads) << this << " self-reviving"; 70600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 70700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 708abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughesvoid Thread::DumpState(std::ostream& os, const Thread* thread, pid_t tid) { 709d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes std::string group_name; 710d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes int priority; 711d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes bool is_daemon = false; 71281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers Thread* self = Thread::Current(); 713d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 714dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers if (self != nullptr && thread != nullptr && thread->tlsPtr_.opeer != nullptr) { 715cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedObjectAccessUnchecked soa(self); 716dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers priority = soa.DecodeField(WellKnownClasses::java_lang_Thread_priority) 717dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers ->GetInt(thread->tlsPtr_.opeer); 718dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers is_daemon = soa.DecodeField(WellKnownClasses::java_lang_Thread_daemon) 719dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers ->GetBoolean(thread->tlsPtr_.opeer); 720d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 7212dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* thread_group = 722dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers soa.DecodeField(WellKnownClasses::java_lang_Thread_group)->GetObject(thread->tlsPtr_.opeer); 723120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 7240aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (thread_group != nullptr) { 725ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtField* group_name_field = 7262dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers soa.DecodeField(WellKnownClasses::java_lang_ThreadGroup_name); 7272dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::String* group_name_string = 7282dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers reinterpret_cast<mirror::String*>(group_name_field->GetObject(thread_group)); 7290aded089f565008ba5908e395e5914ca4f91f2deDave Allison group_name = (group_name_string != nullptr) ? group_name_string->ToModifiedUtf8() : "<null>"; 730d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 731d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } else { 732d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes priority = GetNativePriority(); 733dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes } 734d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 735abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes std::string scheduler_group_name(GetSchedulerGroupName(tid)); 7361bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughes if (scheduler_group_name.empty()) { 7371bac54ffa933fbe9b92b62437577f2f4583eff1aElliott Hughes scheduler_group_name = "default"; 738d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 739d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 7400aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (thread != nullptr) { 741dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers os << '"' << *thread->tlsPtr_.name << '"'; 742abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (is_daemon) { 743abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " daemon"; 744abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } 745abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " prio=" << priority 746d9c4fc94fa618617f94e1de9af5f034549100753Ian Rogers << " tid=" << thread->GetThreadId() 74780537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes << " " << thread->GetState(); 74880537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes if (thread->IsStillStarting()) { 74980537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes os << " (still starting up)"; 75080537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes } 75180537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes os << "\n"; 752abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } else { 753289be85116aaf7c48413858b5d0448868b4e61f3Elliott Hughes os << '"' << ::art::GetThreadName(tid) << '"' 754abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " prio=" << priority 755abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " (not attached)\n"; 756abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } 757abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes 7580aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (thread != nullptr) { 75981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers MutexLock mu(self, *Locks::thread_suspend_count_lock_); 760abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " | group=\"" << group_name << "\"" 761dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers << " sCount=" << thread->tls32_.suspend_count 762dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers << " dsCount=" << thread->tls32_.debug_suspend_count 763dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers << " obj=" << reinterpret_cast<void*>(thread->tlsPtr_.opeer) 764abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " self=" << reinterpret_cast<const void*>(thread) << "\n"; 765d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 7660d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes 767abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes os << " | sysTid=" << tid 768abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " nice=" << getpriority(PRIO_PROCESS, tid) 7690d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes << " cgrp=" << scheduler_group_name; 7700aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (thread != nullptr) { 7710d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes int policy; 7720d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes sched_param sp; 773dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers CHECK_PTHREAD_CALL(pthread_getschedparam, (thread->tlsPtr_.pthread_self, &policy, &sp), 774dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers __FUNCTION__); 7750d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes os << " sched=" << policy << "/" << sp.sched_priority 776dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers << " handle=" << reinterpret_cast<void*>(thread->tlsPtr_.pthread_self); 7770d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes } 7780d39c12238499ca9ccc34d1532c443335e7c1044Elliott Hughes os << "\n"; 779d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 780d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes // Grab the scheduler stats for this thread. 781d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes std::string scheduler_stats; 782abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes if (ReadFileToString(StringPrintf("/proc/self/task/%d/schedstat", tid), &scheduler_stats)) { 7837934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom scheduler_stats.resize(scheduler_stats.size() - 1); // Lose the trailing '\n'. 784d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } else { 785d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes scheduler_stats = "0 0 0"; 786d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 787d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 788ba0b9c55adce3f533845ab1b25c552589e5b4118Elliott Hughes char native_thread_state = '?'; 789d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int utime = 0; 790d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int stime = 0; 791d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int task_cpu = 0; 7922921201dce37ba40c55b89c0deca3c34bf64168eBrian Carlstrom GetTaskStats(tid, &native_thread_state, &utime, &stime, &task_cpu); 793d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 794ba0b9c55adce3f533845ab1b25c552589e5b4118Elliott Hughes os << " | state=" << native_thread_state 795ba0b9c55adce3f533845ab1b25c552589e5b4118Elliott Hughes << " schedstat=( " << scheduler_stats << " )" 796d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes << " utm=" << utime 797d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes << " stm=" << stime 798abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " core=" << task_cpu 799abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes << " HZ=" << sysconf(_SC_CLK_TCK) << "\n"; 8000aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (thread != nullptr) { 801dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers os << " | stack=" << reinterpret_cast<void*>(thread->tlsPtr_.stack_begin) << "-" 802dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers << reinterpret_cast<void*>(thread->tlsPtr_.stack_end) << " stackSize=" 803dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers << PrettySize(thread->tlsPtr_.stack_size) << "\n"; 804abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes } 805abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes} 806abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes 807abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughesvoid Thread::DumpState(std::ostream& os) const { 808abbe07d095547ded03c2e9d0d53943d43471278dElliott Hughes Thread::DumpState(os, this, GetTid()); 809a09576416788b916095739e43a16917e7948f3a4Elliott Hughes} 810a09576416788b916095739e43a16917e7948f3a4Elliott Hughes 8110399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersstruct StackDumpVisitor : public StackVisitor { 8127a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers StackDumpVisitor(std::ostream& os, Thread* thread, Context* context, bool can_allocate) 813b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 8147a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers : StackVisitor(thread, context), os(os), thread(thread), can_allocate(can_allocate), 8150aded089f565008ba5908e395e5914ca4f91f2deDave Allison last_method(nullptr), last_line_number(0), repetition_count(0), frame_count(0) { 816d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 817d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 818bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers virtual ~StackDumpVisitor() { 819e85d2e924953f1a13b7152edba1c13853e6f3a86Elliott Hughes if (frame_count == 0) { 820e85d2e924953f1a13b7152edba1c13853e6f3a86Elliott Hughes os << " (no managed stack frames)\n"; 821e85d2e924953f1a13b7152edba1c13853e6f3a86Elliott Hughes } 822d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 823d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 824b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 825ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = GetMethod(); 8260399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (m->IsRuntimeMethod()) { 827530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 8289086572fa809d1a19d886b467e4da3ce42016982Ian Rogers } 82928ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers const int kMaxRepetition = 3; 8302dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Class* c = m->GetDeclaringClass(); 831ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers mirror::DexCache* dex_cache = c->GetDexCache(); 832b861dc0077342d5a1d2dd9cade3f6990620778ecIan Rogers int line_number = -1; 8330aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (dex_cache != nullptr) { // be tolerant of bad input 8344445a7e3398a6143939168097a3aa275b734504dIan Rogers const DexFile& dex_file = *dex_cache->GetDexFile(); 835c751fdcc9491c1b60c3db517fbc41bb98e92441fMathieu Chartier line_number = dex_file.GetLineNumFromPC(m, GetDexPc(false)); 836b861dc0077342d5a1d2dd9cade3f6990620778ecIan Rogers } 83728ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (line_number == last_line_number && last_method == m) { 8380aded089f565008ba5908e395e5914ca4f91f2deDave Allison ++repetition_count; 839d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } else { 84028ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (repetition_count >= kMaxRepetition) { 84128ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << " ... repeated " << (repetition_count - kMaxRepetition) << " times\n"; 84228ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 84328ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers repetition_count = 0; 84428ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers last_line_number = line_number; 84528ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers last_method = m; 84628ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 84728ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (repetition_count < kMaxRepetition) { 84828ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << " at " << PrettyMethod(m, false); 84928ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (m->IsNative()) { 85028ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << "(Native method)"; 85128ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } else { 8526d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers mh.ChangeMethod(m); 8536d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers const char* source_file(mh.GetDeclaringClassSourceFile()); 8540aded089f565008ba5908e395e5914ca4f91f2deDave Allison os << "(" << (source_file != nullptr ? source_file : "unavailable") 8552e450bf45e1bacc9c356f6ab239ccfb31bd8d7e4Brian Carlstrom << ":" << line_number << ")"; 85628ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 85728ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers os << "\n"; 85808fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes if (frame_count == 0) { 85908fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes Monitor::DescribeWait(os, thread); 86008fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes } 86108fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes if (can_allocate) { 8624993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes Monitor::VisitLocks(this, DumpLockedObject, &os); 86308fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes } 864d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 8658e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes 86608fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes ++frame_count; 867530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 868d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 8694993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes 8702dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers static void DumpLockedObject(mirror::Object* o, void* context) 8714993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 8724993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes std::ostream& os = *reinterpret_cast<std::ostream*>(context); 873d803bc7ce255be6c16eaf6a8a58a742515e9da9fIan Rogers os << " - locked "; 874d803bc7ce255be6c16eaf6a8a58a742515e9da9fIan Rogers if (o == nullptr) { 875d803bc7ce255be6c16eaf6a8a58a742515e9da9fIan Rogers os << "an unknown object"; 876d803bc7ce255be6c16eaf6a8a58a742515e9da9fIan Rogers } else { 877d803bc7ce255be6c16eaf6a8a58a742515e9da9fIan Rogers if ((o->GetLockWord().GetState() == LockWord::kThinLocked) && 878d803bc7ce255be6c16eaf6a8a58a742515e9da9fIan Rogers Locks::mutator_lock_->IsExclusiveHeld(Thread::Current())) { 879d803bc7ce255be6c16eaf6a8a58a742515e9da9fIan Rogers // Getting the identity hashcode here would result in lock inflation and suspension of the 880d803bc7ce255be6c16eaf6a8a58a742515e9da9fIan Rogers // current thread, which isn't safe if this is the only runnable thread. 881d803bc7ce255be6c16eaf6a8a58a742515e9da9fIan Rogers os << StringPrintf("<@addr=0x%" PRIxPTR "> (a %s)", reinterpret_cast<intptr_t>(o), 882d803bc7ce255be6c16eaf6a8a58a742515e9da9fIan Rogers PrettyTypeOf(o).c_str()); 883d803bc7ce255be6c16eaf6a8a58a742515e9da9fIan Rogers } else { 884d803bc7ce255be6c16eaf6a8a58a742515e9da9fIan Rogers os << StringPrintf("<0x%08x> (a %s)", o->IdentityHashCode(), PrettyTypeOf(o).c_str()); 885d803bc7ce255be6c16eaf6a8a58a742515e9da9fIan Rogers } 886d803bc7ce255be6c16eaf6a8a58a742515e9da9fIan Rogers } 887d803bc7ce255be6c16eaf6a8a58a742515e9da9fIan Rogers os << "\n"; 8884993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes } 8894993bbc8eda377804e585efd918f8ab9d9eab7d4Elliott Hughes 89008fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes std::ostream& os; 89108fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes const Thread* thread; 8920878d654e7be8c9666579e22522704d8887415ccIan Rogers const bool can_allocate; 8936d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers MethodHelper mh; 894ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* last_method; 89528ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers int last_line_number; 89628ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers int repetition_count; 8978e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes int frame_count; 898d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes}; 899d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 90033e9566255c426e7a2c8fca5b8a1b6a94a5d352cIan Rogersstatic bool ShouldShowNativeStack(const Thread* thread) 90133e9566255c426e7a2c8fca5b8a1b6a94a5d352cIan Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 902aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes ThreadState state = thread->GetState(); 903aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes 904aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // In native code somewhere in the VM (one of the kWaitingFor* states)? That's interesting. 905aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes if (state > kWaiting && state < kStarting) { 906aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes return true; 907aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes } 908aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes 909aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // In an Object.wait variant or Thread.sleep? That's not interesting. 910aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes if (state == kTimedWaiting || state == kSleeping || state == kWaiting) { 911aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes return false; 912aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes } 913aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes 914aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // In some other native method? That's interesting. 915aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // We don't just check kNative because native methods will be in state kSuspended if they're 916aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // calling back into the VM, or kBlocked if they're blocked on a monitor, or one of the 917aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes // thread-startup states if it's early enough in their life cycle (http://b/7432159). 9180aded089f565008ba5908e395e5914ca4f91f2deDave Allison mirror::ArtMethod* current_method = thread->GetCurrentMethod(nullptr); 9190aded089f565008ba5908e395e5914ca4f91f2deDave Allison return current_method != nullptr && current_method->IsNative(); 920aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes} 921aef701da38d14bd479cb275f78e2adaa00f1c54aElliott Hughes 922c751fdcc9491c1b60c3db517fbc41bb98e92441fMathieu Chartiervoid Thread::DumpJavaStack(std::ostream& os) const { 923c751fdcc9491c1b60c3db517fbc41bb98e92441fMathieu Chartier UniquePtr<Context> context(Context::Create()); 924c751fdcc9491c1b60c3db517fbc41bb98e92441fMathieu Chartier StackDumpVisitor dumper(os, const_cast<Thread*>(this), context.get(), 925c751fdcc9491c1b60c3db517fbc41bb98e92441fMathieu Chartier !tls32_.throwing_OutOfMemoryError); 926c751fdcc9491c1b60c3db517fbc41bb98e92441fMathieu Chartier dumper.WalkStack(); 927c751fdcc9491c1b60c3db517fbc41bb98e92441fMathieu Chartier} 928c751fdcc9491c1b60c3db517fbc41bb98e92441fMathieu Chartier 929d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughesvoid Thread::DumpStack(std::ostream& os) const { 930ed1790e83352e54420018d1495eb010f7cd48a64Jeff Hao // TODO: we call this code when dying but may not have suspended the thread ourself. The 931ed1790e83352e54420018d1495eb010f7cd48a64Jeff Hao // IsSuspended check is therefore racy with the use for dumping (normally we inhibit 932ed1790e83352e54420018d1495eb010f7cd48a64Jeff Hao // the race with the thread_suspend_count_lock_). 93365530499a0169b3b0b153008e2d187c9f4939541Ian Rogers // No point dumping for an abort in debug builds where we'll hit the not suspended check in stack. 93465530499a0169b3b0b153008e2d187c9f4939541Ian Rogers bool dump_for_abort = (gAborting > 0) && !kIsDebugBuild; 935d090cf4f2420a228251e27dbae600f4f44ae2c57Ian Rogers if (this == Thread::Current() || IsSuspended() || dump_for_abort) { 936f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers // If we're currently in native code, dump that stack before dumping the managed stack. 937d090cf4f2420a228251e27dbae600f4f44ae2c57Ian Rogers if (dump_for_abort || ShouldShowNativeStack(this)) { 938f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers DumpKernelStack(os, GetTid(), " kernel: ", false); 939067d20fd2fddd947ce3a014d023e9de249082ebeKenny Root SirtRef<mirror::ArtMethod> method_ref(Thread::Current(), GetCurrentMethod(nullptr)); 940067d20fd2fddd947ce3a014d023e9de249082ebeKenny Root DumpNativeStack(os, GetTid(), " native: ", false, method_ref.get()); 941f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers } 942c751fdcc9491c1b60c3db517fbc41bb98e92441fMathieu Chartier DumpJavaStack(os); 943f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers } else { 944f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers os << "Not able to dump stack of thread that isn't suspended"; 945f08e473519dc5c7ccb85eb2b333f9d0aff23a329Ian Rogers } 946e27955ca3ca960928d4dbd6cb79711fce06950b3Elliott Hughes} 947e27955ca3ca960928d4dbd6cb79711fce06950b3Elliott Hughes 948be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughesvoid Thread::ThreadExitCallback(void* arg) { 949be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes Thread* self = reinterpret_cast<Thread*>(arg); 950dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers if (self->tls32_.thread_exit_check_count == 0) { 951dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers LOG(WARNING) << "Native thread exiting without having called DetachCurrentThread (maybe it's " 952dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers "going to use a pthread_key_create destructor?): " << *self; 9530878d654e7be8c9666579e22522704d8887415ccIan Rogers CHECK(is_started_); 9546a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes CHECK_PTHREAD_CALL(pthread_setspecific, (Thread::pthread_key_self_, self), "reattach self"); 955dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers self->tls32_.thread_exit_check_count = 1; 9566a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes } else { 9576a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes LOG(FATAL) << "Native thread exited without calling DetachCurrentThread: " << *self; 9586a607ad0902f3b8478e95d0b6b3e63a538571a3fElliott Hughes } 959b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro} 960b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 961be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughesvoid Thread::Startup() { 9620878d654e7be8c9666579e22522704d8887415ccIan Rogers CHECK(!is_started_); 9630878d654e7be8c9666579e22522704d8887415ccIan Rogers is_started_ = true; 96400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers { 9656d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // MutexLock to keep annotalysis happy. 9666d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // 9670aded089f565008ba5908e395e5914ca4f91f2deDave Allison // Note we use nullptr for the thread because Thread::Current can 9686d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // return garbage since (is_started_ == true) and 9696d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // Thread::pthread_key_self_ is not yet initialized. 9706d69f592696f3bbd3bb0978ae3b25f2c359aac0dBrian Carlstrom // This was seen on glibc. 9710aded089f565008ba5908e395e5914ca4f91f2deDave Allison MutexLock mu(nullptr, *Locks::thread_suspend_count_lock_); 972c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers resume_cond_ = new ConditionVariable("Thread resumption condition variable", 973c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers *Locks::thread_suspend_count_lock_); 97400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 97500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 976b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro // Allocate a TLS slot. 9778d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes CHECK_PTHREAD_CALL(pthread_key_create, (&Thread::pthread_key_self_, Thread::ThreadExitCallback), "self key"); 978b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 979b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro // Double-check the TLS slot allocation. 9800aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (pthread_getspecific(pthread_key_self_) != nullptr) { 9810aded089f565008ba5908e395e5914ca4f91f2deDave Allison LOG(FATAL) << "Newly-created pthread TLS slot is not nullptr"; 982b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro } 983038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes} 984038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes 985038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughesvoid Thread::FinishStartup() { 986365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Runtime* runtime = Runtime::Current(); 987365c10235438607541fa2259a5fec48061b90bd8Ian Rogers CHECK(runtime->IsStarted()); 988b82b6878fb000d4731063b1bf15c39ff7c50b61fBrian Carlstrom 98901158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Finish attaching the main thread. 99000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(Thread::Current()); 991365c10235438607541fa2259a5fec48061b90bd8Ian Rogers Thread::Current()->CreatePeer("main", false, runtime->GetMainThreadGroup()); 9929a6bae896a2f003d7216603bf29771d105c10ca4Jesse Wilson 993af8d15a3267343dec135cc6df1db740c0a5c7b52Elliott Hughes Runtime::Current()->GetClassLinker()->RunRootClinits(); 994b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro} 995b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 996c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughesvoid Thread::Shutdown() { 9970878d654e7be8c9666579e22522704d8887415ccIan Rogers CHECK(is_started_); 9980878d654e7be8c9666579e22522704d8887415ccIan Rogers is_started_ = false; 9998d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes CHECK_PTHREAD_CALL(pthread_key_delete, (Thread::pthread_key_self_), "self key"); 100033e9566255c426e7a2c8fca5b8a1b6a94a5d352cIan Rogers MutexLock mu(Thread::Current(), *Locks::thread_suspend_count_lock_); 10010aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (resume_cond_ != nullptr) { 10020878d654e7be8c9666579e22522704d8887415ccIan Rogers delete resume_cond_; 10030aded089f565008ba5908e395e5914ca4f91f2deDave Allison resume_cond_ = nullptr; 10040878d654e7be8c9666579e22522704d8887415ccIan Rogers } 1005c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes} 1006c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes 1007dd7624d2b9e599d57762d12031b10b89defc9807Ian RogersThread::Thread(bool daemon) : tls32_(daemon), wait_monitor_(nullptr), interrupted_(false) { 1008dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers wait_mutex_ = new Mutex("a thread wait mutex"); 1009dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers wait_cond_ = new ConditionVariable("a thread wait condition variable", *wait_mutex_); 1010dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.debug_invoke_req = new DebugInvokeReq; 1011dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.single_step_control = new SingleStepControl; 1012dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.instrumentation_stack = new std::deque<instrumentation::InstrumentationStackFrame>; 1013dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.name = new std::string(kThreadNameDuringStartup); 1014dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers 1015f5a7a476e7ea63e094ff0f011dccc170607e6f6bElliott Hughes CHECK_EQ((sizeof(Thread) % 4), 0U) << sizeof(Thread); 1016dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tls32_.state_and_flags.as_struct.flags = 0; 1017dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tls32_.state_and_flags.as_struct.state = kNative; 1018dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers memset(&tlsPtr_.held_mutexes[0], 0, sizeof(tlsPtr_.held_mutexes)); 1019dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers memset(tlsPtr_.rosalloc_runs, 0, sizeof(tlsPtr_.rosalloc_runs)); 10200aded089f565008ba5908e395e5914ca4f91f2deDave Allison for (uint32_t i = 0; i < kMaxCheckpoints; ++i) { 1021dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.checkpoint_functions[i] = nullptr; 10220aded089f565008ba5908e395e5914ca4f91f2deDave Allison } 1023dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes} 1024dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes 10257dc5166ea740359d381097a7ab382c1dd404055fElliott Hughesbool Thread::IsStillStarting() const { 10267dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // You might think you can check whether the state is kStarting, but for much of thread startup, 102780537bb742dff4ccdf6d04b1c0bb7d2179acc8cbElliott Hughes // the thread is in kNative; it might also be in kVmWait. 10280aded089f565008ba5908e395e5914ca4f91f2deDave Allison // You might think you can check whether the peer is nullptr, but the peer is actually created and 10297dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // assigned fairly early on, and needs to be. 10307dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // It turns out that the last thing to change is the thread name; that's a good proxy for "has 10317dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes // this thread _ever_ entered kRunnable". 1032dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers return (tlsPtr_.jpeer == nullptr && tlsPtr_.opeer == nullptr) || 1033dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers (*tlsPtr_.name == kThreadNameDuringStartup); 10347dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes} 10357dc5166ea740359d381097a7ab382c1dd404055fElliott Hughes 103600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::AssertNoPendingException() const { 103700f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (UNLIKELY(IsExceptionPending())) { 103800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers ScopedObjectAccess soa(Thread::Current()); 10390aded089f565008ba5908e395e5914ca4f91f2deDave Allison mirror::Throwable* exception = GetException(nullptr); 104000f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(FATAL) << "No pending exception expected: " << exception->Dump(); 104100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 104200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 104300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 10448d7672e476a526aa6205a008b5a06c8216342ac6Mathieu Chartiervoid Thread::AssertNoPendingExceptionForNewException(const char* msg) const { 10458d7672e476a526aa6205a008b5a06c8216342ac6Mathieu Chartier if (UNLIKELY(IsExceptionPending())) { 10468d7672e476a526aa6205a008b5a06c8216342ac6Mathieu Chartier ScopedObjectAccess soa(Thread::Current()); 10478d7672e476a526aa6205a008b5a06c8216342ac6Mathieu Chartier mirror::Throwable* exception = GetException(nullptr); 10488d7672e476a526aa6205a008b5a06c8216342ac6Mathieu Chartier LOG(FATAL) << "Throwing new exception " << msg << " with unexpected pending exception: " 10498d7672e476a526aa6205a008b5a06c8216342ac6Mathieu Chartier << exception->Dump(); 10508d7672e476a526aa6205a008b5a06c8216342ac6Mathieu Chartier } 10518d7672e476a526aa6205a008b5a06c8216342ac6Mathieu Chartier} 10528d7672e476a526aa6205a008b5a06c8216342ac6Mathieu Chartier 1053815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartierstatic void MonitorExitVisitor(mirror::Object** object, void* arg, uint32_t /*thread_id*/, 1054815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier RootType /*root_type*/) 1055423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier NO_THREAD_SAFETY_ANALYSIS { 105600f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers Thread* self = reinterpret_cast<Thread*>(arg); 1057815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier mirror::Object* entered_monitor = *object; 105800f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers if (self->HoldsLock(entered_monitor)) { 105900f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers LOG(WARNING) << "Calling MonitorExit on object " 1060815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier << object << " (" << PrettyTypeOf(entered_monitor) << ")" 106100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << " left locked by native thread " 106200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers << *Thread::Current() << " which is detaching"; 106300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers entered_monitor->MonitorExit(self); 106400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 106502b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes} 106602b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 1067c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughesvoid Thread::Destroy() { 1068120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers Thread* self = this; 1069120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers DCHECK_EQ(self, Thread::Current()); 107002b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 1071dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers if (tlsPtr_.opeer != nullptr) { 1072cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedObjectAccess soa(self); 1073120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // We may need to call user-supplied managed code, do this before final clean-up. 1074cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers HandleUncaughtExceptions(soa); 1075cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers RemoveFromThreadGroup(soa); 1076534da072d3db3beecbd74e5aa23d630d73695f2cElliott Hughes 10773c50a4b4ba6d7d9369ee9a0bd6d30bf4c9c79bb0Anwar Ghuloum // this.nativePeer = 0; 1078d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz if (Runtime::Current()->IsActiveTransaction()) { 1079dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers soa.DecodeField(WellKnownClasses::java_lang_Thread_nativePeer) 1080dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers ->SetLong<true>(tlsPtr_.opeer, 0); 1081d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz } else { 1082dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers soa.DecodeField(WellKnownClasses::java_lang_Thread_nativePeer) 1083dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers ->SetLong<false>(tlsPtr_.opeer, 0); 1084d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz } 1085cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers Dbg::PostThreadDeath(self); 108602b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 1087cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers // Thread.join() is implemented as an Object.wait() on the Thread.lock object. Signal anyone 1088cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers // who is waiting. 10892dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* lock = 1090dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers soa.DecodeField(WellKnownClasses::java_lang_Thread_lock)->GetObject(tlsPtr_.opeer); 1091038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes // (This conditional is only needed for tests, where Thread.lock won't have been set.) 1092c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier if (lock != nullptr) { 1093c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier SirtRef<mirror::Object> sirt_obj(self, lock); 1094c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier ObjectLock<mirror::Object> locker(self, &sirt_obj); 109505f3057d6a4d23d712092ccd36a531590bff323bIan Rogers locker.Notify(); 10965f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 10975f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 1098120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 1099120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers // On thread detach, all monitors entered with JNI MonitorEnter are automatically exited. 1100dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers if (tlsPtr_.jni_env != nullptr) { 1101dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.jni_env->monitors.VisitRoots(MonitorExitVisitor, self, 0, kRootVMInternal); 1102120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers } 1103c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott Hughes} 110402b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 1105c0f0933249cf516b37717faa766e1e9808f7c1f8Elliott HughesThread::~Thread() { 1106dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers if (tlsPtr_.jni_env != nullptr && tlsPtr_.jpeer != nullptr) { 1107dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier // If pthread_create fails we don't have a jni env here. 1108dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.jni_env->DeleteGlobalRef(tlsPtr_.jpeer); 1109dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.jpeer = nullptr; 1110dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier } 1111dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.opeer = nullptr; 1112dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier 1113dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers bool initialized = (tlsPtr_.jni_env != nullptr); // Did Thread::Init run? 11141efa0a9d6cd5f5b40b8a21d39f1103a3610250eeAlexei Zavjalov if (initialized) { 1115dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers delete tlsPtr_.jni_env; 1116dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.jni_env = nullptr; 11171efa0a9d6cd5f5b40b8a21d39f1103a3610250eeAlexei Zavjalov } 1118dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier CHECK_NE(GetState(), kRunnable); 11190aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK_NE(ReadFlag(kCheckpointRequest), true); 1120dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers CHECK(tlsPtr_.checkpoint_functions[0] == nullptr); 1121dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers CHECK(tlsPtr_.checkpoint_functions[1] == nullptr); 1122dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers CHECK(tlsPtr_.checkpoint_functions[2] == nullptr); 11230aded089f565008ba5908e395e5914ca4f91f2deDave Allison 1124dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier // We may be deleting a still born thread. 1125dbe6f4613ae0161b169f4fca8a616b0b393370abMathieu Chartier SetStateUnsafe(kTerminated); 112685d1545e985ac689db4bad7849880e843707c862Elliott Hughes 112785d1545e985ac689db4bad7849880e843707c862Elliott Hughes delete wait_cond_; 112885d1545e985ac689db4bad7849880e843707c862Elliott Hughes delete wait_mutex_; 112985d1545e985ac689db4bad7849880e843707c862Elliott Hughes 1130dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers if (tlsPtr_.long_jump_context != nullptr) { 1131dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers delete tlsPtr_.long_jump_context; 1132c928de90ad22ecdf83c18a07008409595f13d3b1Ian Rogers } 1133475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes 11341efa0a9d6cd5f5b40b8a21d39f1103a3610250eeAlexei Zavjalov if (initialized) { 11351efa0a9d6cd5f5b40b8a21d39f1103a3610250eeAlexei Zavjalov CleanupCpu(); 11361efa0a9d6cd5f5b40b8a21d39f1103a3610250eeAlexei Zavjalov } 11371efa0a9d6cd5f5b40b8a21d39f1103a3610250eeAlexei Zavjalov 1138dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers delete tlsPtr_.debug_invoke_req; 1139dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers delete tlsPtr_.single_step_control; 1140dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers delete tlsPtr_.instrumentation_stack; 1141dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers delete tlsPtr_.name; 1142dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers delete tlsPtr_.stack_trace_sample; 1143d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes 1144cf58d4adf461eb9b8e84baa8019054c88cd8acc6Hiroshi Yamauchi Runtime::Current()->GetHeap()->RevokeThreadLocalBuffers(this); 1145cf58d4adf461eb9b8e84baa8019054c88cd8acc6Hiroshi Yamauchi 1146d8af1592a97f7447ecf93f85098cb36340ab0fe2Elliott Hughes TearDownAlternateSignalStack(); 1147c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes} 1148c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes 1149cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogersvoid Thread::HandleUncaughtExceptions(ScopedObjectAccess& soa) { 1150accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes if (!IsExceptionPending()) { 1151accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes return; 1152accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes } 1153dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers ScopedLocalRef<jobject> peer(tlsPtr_.jni_env, soa.AddLocalReference<jobject>(tlsPtr_.opeer)); 1154cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedThreadStateChange tsc(this, kNative); 1155120f1c74a9768e958377b6c97897511b27ae58c8Ian Rogers 1156accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Get and clear the exception. 1157dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers ScopedLocalRef<jthrowable> exception(tlsPtr_.jni_env, tlsPtr_.jni_env->ExceptionOccurred()); 1158dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.jni_env->ExceptionClear(); 1159accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1160accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // If the thread has its own handler, use that. 1161dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers ScopedLocalRef<jobject> handler(tlsPtr_.jni_env, 1162dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.jni_env->GetObjectField(peer.get(), 1163dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers WellKnownClasses::java_lang_Thread_uncaughtHandler)); 11640aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (handler.get() == nullptr) { 1165accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Otherwise use the thread group's default handler. 1166dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers handler.reset(tlsPtr_.jni_env->GetObjectField(peer.get(), 1167dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers WellKnownClasses::java_lang_Thread_group)); 1168accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes } 1169accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1170accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Call the handler. 1171dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.jni_env->CallVoidMethod(handler.get(), 1172dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers WellKnownClasses::java_lang_Thread$UncaughtExceptionHandler_uncaughtException, 1173dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers peer.get(), exception.get()); 1174accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1175accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // If the handler threw, clear that exception too. 1176dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.jni_env->ExceptionClear(); 1177a215526d5c789cbef0f81a1f9aba22541a841ccaElliott Hughes} 1178a215526d5c789cbef0f81a1f9aba22541a841ccaElliott Hughes 1179cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogersvoid Thread::RemoveFromThreadGroup(ScopedObjectAccess& soa) { 11804514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom // this.group.removeThread(this); 11814514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom // group can be null if we're in the compiler or a test. 1182dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers mirror::Object* ogroup = soa.DecodeField(WellKnownClasses::java_lang_Thread_group) 1183dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers ->GetObject(tlsPtr_.opeer); 11840aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (ogroup != nullptr) { 1185cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedLocalRef<jobject> group(soa.Env(), soa.AddLocalReference<jobject>(ogroup)); 1186dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers ScopedLocalRef<jobject> peer(soa.Env(), soa.AddLocalReference<jobject>(tlsPtr_.opeer)); 1187cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers ScopedThreadStateChange tsc(soa.Self(), kNative); 1188dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.jni_env->CallVoidMethod(group.get(), 1189dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers WellKnownClasses::java_lang_ThreadGroup_removeThread, 1190dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers peer.get()); 11914514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom } 11924514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom} 1193accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1194408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogerssize_t Thread::NumSirtReferences() { 1195a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers size_t count = 0; 1196dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers for (StackIndirectReferenceTable* cur = tlsPtr_.top_sirt; cur; cur = cur->GetLink()) { 1197a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers count += cur->NumberOfReferences(); 1198a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers } 1199a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers return count; 1200a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers} 1201a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers 1202cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogersbool Thread::SirtContains(jobject obj) const { 1203ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers StackReference<mirror::Object>* sirt_entry = 1204ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers reinterpret_cast<StackReference<mirror::Object>*>(obj); 1205dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers for (StackIndirectReferenceTable* cur = tlsPtr_.top_sirt; cur; cur = cur->GetLink()) { 120640381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom if (cur->Contains(sirt_entry)) { 1207a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers return true; 1208a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers } 1209a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers } 12100399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // JNI code invoked from portable code uses shadow frames rather than the SIRT. 1211dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers return tlsPtr_.managed_stack.ShadowFramesContain(sirt_entry); 121228f1a147d77ec772db98bed890b50a9ddcff2365TDYa} 121328f1a147d77ec772db98bed890b50a9ddcff2365TDYa 121489bb1449bbef1863b12dfa3813ab7c78be94316fMathieu Chartiervoid Thread::SirtVisitRoots(RootCallback* visitor, void* arg, uint32_t thread_id) { 1215dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers for (StackIndirectReferenceTable* cur = tlsPtr_.top_sirt; cur; cur = cur->GetLink()) { 12168dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao size_t num_refs = cur->NumberOfReferences(); 12170aded089f565008ba5908e395e5914ca4f91f2deDave Allison for (size_t j = 0; j < num_refs; ++j) { 12182dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* object = cur->GetReference(j); 1219423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (object != nullptr) { 1220815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier mirror::Object* old_obj = object; 1221815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier visitor(&object, arg, thread_id, kRootNativeStack); 1222815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier if (old_obj != object) { 1223815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier cur->SetReference(j, object); 1224423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier } 12255e73f9c8990819054f8e0a60061ee8beff1e024aBrian Carlstrom } 12268dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao } 12278dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao } 12288dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao} 12298dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao 12302dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersmirror::Object* Thread::DecodeJObject(jobject obj) const { 123181d425b0b232962441616f8b14f73620bffef5e5Ian Rogers Locks::mutator_lock_->AssertSharedHeld(this); 12320aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (obj == nullptr) { 12330aded089f565008ba5908e395e5914ca4f91f2deDave Allison return nullptr; 1234408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1235408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers IndirectRef ref = reinterpret_cast<IndirectRef>(obj); 1236408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers IndirectRefKind kind = GetIndirectRefKind(ref); 12372dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* result; 12384f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers // The "kinds" below are sorted by the frequency we expect to encounter them. 12394f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (kind == kLocal) { 1240dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers IndirectReferenceTable& locals = tlsPtr_.jni_env->locals; 12416dda898d47b3e8931e4404330e81b7110108e34fMathieu Chartier result = locals.Get(ref); 12424f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers } else if (kind == kSirtOrInvalid) { 1243ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers // TODO: make stack indirect reference table lookup more efficient. 1244ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers // Check if this is a local reference in the SIRT. 12454f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (LIKELY(SirtContains(obj))) { 1246ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers // Read from SIRT. 1247ef7d42fca18c16fbaf103822ad16f23246e2905dIan Rogers result = reinterpret_cast<StackReference<mirror::Object>*>(obj)->AsMirrorPtr(); 1248c645f1ddb7c40bea6a38eda4b3f83f6b6dec405bMathieu Chartier VerifyObject(result); 1249c2dc62d1c9241dfe880a81698713c314b13aa63fElliott Hughes } else if (Runtime::Current()->GetJavaVM()->work_around_app_jni_bugs) { 1250408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Assume an invalid local reference is actually a direct pointer. 12512dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers result = reinterpret_cast<mirror::Object*>(obj); 1252c645f1ddb7c40bea6a38eda4b3f83f6b6dec405bMathieu Chartier VerifyObject(result); 1253408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } else { 1254a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes result = kInvalidIndirectRefObject; 1255408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 12564f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers } else if (kind == kGlobal) { 12574f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers JavaVMExt* vm = Runtime::Current()->GetJavaVM(); 12584f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers IndirectReferenceTable& globals = vm->globals; 1259b8a0b94735f188bc739e4c55479c37699006b881Ian Rogers ReaderMutexLock mu(const_cast<Thread*>(this), vm->globals_lock); 12604f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers result = const_cast<mirror::Object*>(globals.Get(ref)); 12614f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers } else { 12624f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers DCHECK_EQ(kind, kWeakGlobal); 1263c11d9b8870de5f860b13c84003ade7b3f3125a52Mathieu Chartier result = Runtime::Current()->GetJavaVM()->DecodeWeakGlobal(const_cast<Thread*>(this), ref); 12644f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers if (result == kClearedJniWeakGlobal) { 12650aded089f565008ba5908e395e5914ca4f91f2deDave Allison // This is a special case where it's okay to return nullptr. 1266e8c48db6bb507d7fa20c78481c58c23be0045f67Mathieu Chartier return nullptr; 12674f6ad8ab428038129b2d0d6c40b7fd625cca15e1Ian Rogers } 1268408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1269408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers 12700aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (UNLIKELY(result == nullptr)) { 12710aded089f565008ba5908e395e5914ca4f91f2deDave Allison JniAbortF(nullptr, "use of deleted %s %p", ToStr<IndirectRefKind>(kind).c_str(), obj); 1272408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 1273408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers return result; 1274408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers} 1275408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers 127681d425b0b232962441616f8b14f73620bffef5e5Ian Rogers// Implements java.lang.Thread.interrupted. 127781d425b0b232962441616f8b14f73620bffef5e5Ian Rogersbool Thread::Interrupted() { 127850b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers MutexLock mu(Thread::Current(), *wait_mutex_); 1279dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers bool interrupted = IsInterruptedLocked(); 1280dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers SetInterruptedLocked(false); 128181d425b0b232962441616f8b14f73620bffef5e5Ian Rogers return interrupted; 128281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 128381d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 128481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers// Implements java.lang.Thread.isInterrupted. 128581d425b0b232962441616f8b14f73620bffef5e5Ian Rogersbool Thread::IsInterrupted() { 128650b35e2fd1a68cd1240e4a9d9f363e11764957d1Ian Rogers MutexLock mu(Thread::Current(), *wait_mutex_); 1287dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers return IsInterruptedLocked(); 128881d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 128981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 1290dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogersvoid Thread::Interrupt(Thread* self) { 1291c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers MutexLock mu(self, *wait_mutex_); 129281d425b0b232962441616f8b14f73620bffef5e5Ian Rogers if (interrupted_) { 129381d425b0b232962441616f8b14f73620bffef5e5Ian Rogers return; 129481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers } 129581d425b0b232962441616f8b14f73620bffef5e5Ian Rogers interrupted_ = true; 1296c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers NotifyLocked(self); 129781d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 129881d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 129981d425b0b232962441616f8b14f73620bffef5e5Ian Rogersvoid Thread::Notify() { 1300c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers Thread* self = Thread::Current(); 1301c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers MutexLock mu(self, *wait_mutex_); 1302c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers NotifyLocked(self); 130381d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 130481d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 1305c604d731730b43231f63040c8db1d58304da0cf3Ian Rogersvoid Thread::NotifyLocked(Thread* self) { 13060aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (wait_monitor_ != nullptr) { 1307c604d731730b43231f63040c8db1d58304da0cf3Ian Rogers wait_cond_->Signal(self); 130881d425b0b232962441616f8b14f73620bffef5e5Ian Rogers } 130981d425b0b232962441616f8b14f73620bffef5e5Ian Rogers} 131081d425b0b232962441616f8b14f73620bffef5e5Ian Rogers 13110399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass CountStackDepthVisitor : public StackVisitor { 13129b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao public: 131393ba893c20532990a430741e0a97212900094e8cBrian Carlstrom explicit CountStackDepthVisitor(Thread* thread) 1314b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 13150aded089f565008ba5908e395e5914ca4f91f2deDave Allison : StackVisitor(thread, nullptr), 131608fc03ae5dded4adc9b45b7014a4b9dfedbe95a6Elliott Hughes depth_(0), skip_depth_(0), skipping_(true) {} 1317d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 1318b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 131929f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes // We want to skip frames up to and including the exception's constructor. 13209086572fa809d1a19d886b467e4da3ce42016982Ian Rogers // Note we also skip the frame if it doesn't have a method (namely the callee 13219086572fa809d1a19d886b467e4da3ce42016982Ian Rogers // save frame) 1322ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = GetMethod(); 13230399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (skipping_ && !m->IsRuntimeMethod() && 13242dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers !mirror::Throwable::GetJavaLangThrowable()->IsAssignableFrom(m->GetDeclaringClass())) { 132529f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes skipping_ = false; 132629f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 132729f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes if (!skipping_) { 13280399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (!m->IsRuntimeMethod()) { // Ignore runtime frames (in particular callee save). 13296b0870dfaaa2e69a900ad7ed88e4e1d3697445aaIan Rogers ++depth_; 13306b0870dfaaa2e69a900ad7ed88e4e1d3697445aaIan Rogers } 133129f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } else { 133229f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes ++skip_depth_; 133329f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 1334530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 13359b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 13369b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 13379b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao int GetDepth() const { 1338aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers return depth_; 13399b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 13409b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 134129f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes int GetSkipDepth() const { 134229f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes return skip_depth_; 134329f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 134429f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes 13459b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao private: 1346aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers uint32_t depth_; 134729f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes uint32_t skip_depth_; 134829f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes bool skipping_; 13499b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao}; 13509b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 1351ee1d79a603c77c0667b27c075a983579d5c51f7eSebastien Hertztemplate<bool kTransactionActive> 13520399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass BuildInternalStackTraceVisitor : public StackVisitor { 13539b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao public: 13547a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers explicit BuildInternalStackTraceVisitor(Thread* self, Thread* thread, int skip_depth) 13550aded089f565008ba5908e395e5914ca4f91f2deDave Allison : StackVisitor(thread, nullptr), self_(self), 13560aded089f565008ba5908e395e5914ca4f91f2deDave Allison skip_depth_(skip_depth), count_(0), dex_pc_trace_(nullptr), method_trace_(nullptr) {} 1357283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers 13581f5393447b9f45be7918042d9ee7b521376de866Ian Rogers bool Init(int depth) 1359b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1360aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Allocate method trace with an extra slot that will hold the PC trace 13612dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::ObjectArray<mirror::Object> > 13621f5393447b9f45be7918042d9ee7b521376de866Ian Rogers method_trace(self_, 13632dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers Runtime::Current()->GetClassLinker()->AllocObjectArray<mirror::Object>(self_, 13642dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers depth + 1)); 13650aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (method_trace.get() == nullptr) { 1366283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers return false; 1367726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes } 13682dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::IntArray* dex_pc_trace = mirror::IntArray::Alloc(self_, depth); 13690aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (dex_pc_trace == nullptr) { 1370283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers return false; 1371726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes } 1372aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Save PC trace in last element of method trace, also places it into the 1373aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // object graph. 1374d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz // We are called from native: use non-transactional mode. 1375ee1d79a603c77c0667b27c075a983579d5c51f7eSebastien Hertz method_trace->Set<kTransactionActive>(depth, dex_pc_trace); 13760399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Set the Object*s and assert that no thread suspension is now possible. 137752673ffae0025d86f4023735581f19ebcc477487Ian Rogers const char* last_no_suspend_cause = 13781f5393447b9f45be7918042d9ee7b521376de866Ian Rogers self_->StartAssertNoThreadSuspension("Building internal stack trace"); 13790aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(last_no_suspend_cause == nullptr) << last_no_suspend_cause; 13800399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers method_trace_ = method_trace.get(); 13810399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers dex_pc_trace_ = dex_pc_trace; 1382283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers return true; 13839b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 13849b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 13850399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers virtual ~BuildInternalStackTraceVisitor() { 13860aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (method_trace_ != nullptr) { 13870aded089f565008ba5908e395e5914ca4f91f2deDave Allison self_->EndAssertNoThreadSuspension(nullptr); 138852673ffae0025d86f4023735581f19ebcc477487Ian Rogers } 13890399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 13909b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 1391b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 13920aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (method_trace_ == nullptr || dex_pc_trace_ == nullptr) { 13937934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom return true; // We're probably trying to fillInStackTrace for an OutOfMemoryError. 1394726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes } 139529f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes if (skip_depth_ > 0) { 139629f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes skip_depth_--; 1397530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 139829f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 1399ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = GetMethod(); 14000399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers if (m->IsRuntimeMethod()) { 14010399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return true; // Ignore runtime frames (in particular callee save). 14026b0870dfaaa2e69a900ad7ed88e4e1d3697445aaIan Rogers } 1403ee1d79a603c77c0667b27c075a983579d5c51f7eSebastien Hertz method_trace_->Set<kTransactionActive>(count_, m); 1404ee1d79a603c77c0667b27c075a983579d5c51f7eSebastien Hertz dex_pc_trace_->Set<kTransactionActive>(count_, m->IsProxyMethod() ? DexFile::kDexNoIndex : GetDexPc()); 1405aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers ++count_; 1406530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 14079b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 14089b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 14092dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::Object>* GetInternalStackTrace() const { 14100399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return method_trace_; 14119b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 14129b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 14139b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao private: 14141f5393447b9f45be7918042d9ee7b521376de866Ian Rogers Thread* const self_; 141529f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes // How many more frames to skip. 141629f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes int32_t skip_depth_; 14170399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Current position down stack trace. 1418aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers uint32_t count_; 14190399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Array of dex PC values. 14202dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::IntArray* dex_pc_trace_; 14210399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // An array of the methods on the stack, the last entry is a reference to the PC trace. 14222dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::Object>* method_trace_; 14239b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao}; 14249b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 1425ee1d79a603c77c0667b27c075a983579d5c51f7eSebastien Hertztemplate<bool kTransactionActive> 142664b6d145fa53b8dfb07a8fc2426af13f155d5a4dIan Rogersjobject Thread::CreateInternalStackTrace(const ScopedObjectAccessUnchecked& soa) const { 1427aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Compute depth of stack 14287a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers CountStackDepthVisitor count_visitor(const_cast<Thread*>(this)); 14290399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers count_visitor.WalkStack(); 14309b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao int32_t depth = count_visitor.GetDepth(); 143129f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes int32_t skip_depth = count_visitor.GetSkipDepth(); 14324417536522fd2a9d8215d8672331984769c9520bShih-wei Liao 14331f5393447b9f45be7918042d9ee7b521376de866Ian Rogers // Build internal stack trace. 1434ee1d79a603c77c0667b27c075a983579d5c51f7eSebastien Hertz BuildInternalStackTraceVisitor<kTransactionActive> build_trace_visitor(soa.Self(), 1435ee1d79a603c77c0667b27c075a983579d5c51f7eSebastien Hertz const_cast<Thread*>(this), 1436ee1d79a603c77c0667b27c075a983579d5c51f7eSebastien Hertz skip_depth); 14371f5393447b9f45be7918042d9ee7b521376de866Ian Rogers if (!build_trace_visitor.Init(depth)) { 14380aded089f565008ba5908e395e5914ca4f91f2deDave Allison return nullptr; // Allocation failed. 1439283ed0d9db3084d0fee46d47cd73bf84bd0cfc16Ian Rogers } 14400399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers build_trace_visitor.WalkStack(); 14412dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::ObjectArray<mirror::Object>* trace = build_trace_visitor.GetInternalStackTrace(); 14427a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers if (kIsDebugBuild) { 14437a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers for (int32_t i = 0; i < trace->GetLength(); ++i) { 14440aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(trace->Get(i) != nullptr); 14457a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers } 14467a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers } 14477a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers return soa.AddLocalReference<jobjectArray>(trace); 1448aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers} 1449ee1d79a603c77c0667b27c075a983579d5c51f7eSebastien Hertztemplate jobject Thread::CreateInternalStackTrace<false>(const ScopedObjectAccessUnchecked& soa) const; 1450ee1d79a603c77c0667b27c075a983579d5c51f7eSebastien Hertztemplate jobject Thread::CreateInternalStackTrace<true>(const ScopedObjectAccessUnchecked& soa) const; 1451aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 145253b8b09fc80329539585dcf43657bc5f4ecefdffIan RogersjobjectArray Thread::InternalStackTraceToStackTraceElementArray(const ScopedObjectAccess& soa, 145353b8b09fc80329539585dcf43657bc5f4ecefdffIan Rogers jobject internal, jobjectArray output_array, int* stack_depth) { 1454aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Decode the internal stack trace into the depth, method trace and PC trace 1455530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier int32_t depth = soa.Decode<mirror::ObjectArray<mirror::Object>*>(internal)->GetLength() - 1; 1456aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 1457aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 1458aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 145901158d7a57c8321370667a6045220237d16e0da8Elliott Hughes jobjectArray result; 1460530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier 14610aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (output_array != nullptr) { 146201158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Reuse the array we were given. 146301158d7a57c8321370667a6045220237d16e0da8Elliott Hughes result = output_array; 146401158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // ...adjusting the number of frames we'll write to not exceed the array length. 1465530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier const int32_t traces_length = 1466530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier soa.Decode<mirror::ObjectArray<mirror::StackTraceElement>*>(result)->GetLength(); 1467530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier depth = std::min(depth, traces_length); 146801158d7a57c8321370667a6045220237d16e0da8Elliott Hughes } else { 146901158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Create java_trace array and place in local reference table 1470530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier mirror::ObjectArray<mirror::StackTraceElement>* java_traces = 1471530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier class_linker->AllocStackTraceElementArray(soa.Self(), depth); 14720aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (java_traces == nullptr) { 14730aded089f565008ba5908e395e5914ca4f91f2deDave Allison return nullptr; 147430646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 147500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers result = soa.AddLocalReference<jobjectArray>(java_traces); 147601158d7a57c8321370667a6045220237d16e0da8Elliott Hughes } 147701158d7a57c8321370667a6045220237d16e0da8Elliott Hughes 14780aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (stack_depth != nullptr) { 147901158d7a57c8321370667a6045220237d16e0da8Elliott Hughes *stack_depth = depth; 148001158d7a57c8321370667a6045220237d16e0da8Elliott Hughes } 148155df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao 14829b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao for (int32_t i = 0; i < depth; ++i) { 1483530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier mirror::ObjectArray<mirror::Object>* method_trace = 1484530825ba92e317822116efffd470577ddfd142d4Mathieu Chartier soa.Decode<mirror::ObjectArray<mirror::Object>*>(internal); 1485aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Prepare parameters for StackTraceElement(String cls, String method, String file, int line) 1486ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* method = down_cast<mirror::ArtMethod*>(method_trace->Get(i)); 1487590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier MethodHelper mh(method); 1488228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao int32_t line_number; 14897c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom SirtRef<mirror::String> class_name_object(soa.Self(), nullptr); 14907c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom SirtRef<mirror::String> source_name_object(soa.Self(), nullptr); 1491228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao if (method->IsProxyMethod()) { 1492228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao line_number = -1; 1493228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao class_name_object.reset(method->GetDeclaringClass()->GetName()); 1494228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao // source_name_object intentionally left null for proxy methods 1495228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao } else { 1496228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao mirror::IntArray* pc_trace = down_cast<mirror::IntArray*>(method_trace->Get(depth)); 1497228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao uint32_t dex_pc = pc_trace->Get(i); 1498228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao line_number = mh.GetLineNumFromDexPC(dex_pc); 1499228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao // Allocate element, potentially triggering GC 1500228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao // TODO: reuse class_name_object via Class::name_? 1501228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao const char* descriptor = mh.GetDeclaringClassDescriptor(); 15027c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom CHECK(descriptor != nullptr); 1503228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao std::string class_name(PrettyDescriptor(descriptor)); 1504228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao class_name_object.reset(mirror::String::AllocFromModifiedUtf8(soa.Self(), class_name.c_str())); 15057c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom if (class_name_object.get() == nullptr) { 15067c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom return nullptr; 1507228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao } 1508228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao const char* source_file = mh.GetDeclaringClassSourceFile(); 15097c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom if (source_file != nullptr) { 15107c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom source_name_object.reset(mirror::String::AllocFromModifiedUtf8(soa.Self(), source_file)); 15117c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom if (source_name_object.get() == nullptr) { 15127c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom return nullptr; 15137c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom } 1514228d6b8a4f0a21c1e9b2372c3104ce4ee19f65b4Jeff Hao } 151540381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom } 1516486013193c94b4321414c28ce9251911e14a0599Ian Rogers const char* method_name = mh.GetName(); 15170aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(method_name != nullptr); 15182dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SirtRef<mirror::String> method_name_object(soa.Self(), 15192dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::String::AllocFromModifiedUtf8(soa.Self(), 15202dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers method_name)); 15210aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (method_name_object.get() == nullptr) { 15220aded089f565008ba5908e395e5914ca4f91f2deDave Allison return nullptr; 15236d4d9fcb4f01e287ee29e81cd1c941ee5d11d379Ian Rogers } 1524590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier mirror::StackTraceElement* obj = mirror::StackTraceElement::Alloc( 1525590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier soa.Self(), class_name_object, method_name_object, source_name_object, line_number); 15260aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (obj == nullptr) { 15270aded089f565008ba5908e395e5914ca4f91f2deDave Allison return nullptr; 152830646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 1529d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz // We are called from native: use non-transactional mode. 1530d2fe10a3a34af171bf1631219cd2d6ff6b7778b5Sebastien Hertz soa.Decode<mirror::ObjectArray<mirror::StackTraceElement>*>(result)->Set<false>(i, obj); 153155df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao } 1532aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers return result; 153355df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao} 153455df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao 153562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::ThrowNewExceptionF(const ThrowLocation& throw_location, 153662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* exception_class_descriptor, const char* fmt, ...) { 1537a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes va_list args; 1538a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes va_start(args, fmt); 153962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNewExceptionV(throw_location, exception_class_descriptor, 154062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers fmt, args); 1541a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes va_end(args); 15424a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes} 15434a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes 154462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::ThrowNewExceptionV(const ThrowLocation& throw_location, 154562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* exception_class_descriptor, 154662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* fmt, va_list ap) { 15474a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes std::string msg; 15484a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes StringAppendV(&msg, fmt, ap); 154962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNewException(throw_location, exception_class_descriptor, msg.c_str()); 15505cb5ad27944efb08d4556b3c0d362302e37e832bElliott Hughes} 155137f7a40f6789bb287f287a9af00777af9d6428eeElliott Hughes 155262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::ThrowNewException(const ThrowLocation& throw_location, const char* exception_class_descriptor, 155362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* msg) { 15548d7672e476a526aa6205a008b5a06c8216342ac6Mathieu Chartier // Callers should either clear or call ThrowNewWrappedException. 15558d7672e476a526aa6205a008b5a06c8216342ac6Mathieu Chartier AssertNoPendingExceptionForNewException(msg); 155662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNewWrappedException(throw_location, exception_class_descriptor, msg); 155762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers} 155862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 155962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogersvoid Thread::ThrowNewWrappedException(const ThrowLocation& throw_location, 156062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* exception_class_descriptor, 156162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* msg) { 156262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK_EQ(this, Thread::Current()); 156353b8b09fc80329539585dcf43657bc5f4ecefdffIan Rogers ScopedObjectAccessUnchecked soa(this); 156462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Ensure we don't forget arguments over object allocation. 156562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::Object> saved_throw_this(this, throw_location.GetThis()); 1566ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom SirtRef<mirror::ArtMethod> saved_throw_method(this, throw_location.GetMethod()); 156762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Ignore the cause throw location. TODO: should we report this as a re-throw? 156853b8b09fc80329539585dcf43657bc5f4ecefdffIan Rogers ScopedLocalRef<jobject> cause(GetJniEnv(), soa.AddLocalReference<jobject>(GetException(nullptr))); 156962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ClearException(); 157062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers Runtime* runtime = Runtime::Current(); 1571a4f94740f9d66b21f4bcd3a225c434aa29cfa323Elliott Hughes 1572c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier mirror::ClassLoader* cl = nullptr; 1573c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier if (saved_throw_method.get() != nullptr) { 1574c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier cl = saved_throw_method.get()->GetDeclaringClass()->GetClassLoader(); 157562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 1576590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier SirtRef<mirror::ClassLoader> class_loader(this, cl); 157762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::Class> 15789837939678bb5dcba178e5fb00ed59b5d14c8d9bIan Rogers exception_class(this, runtime->GetClassLinker()->FindClass(this, exception_class_descriptor, 1579590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier class_loader)); 15800aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (UNLIKELY(exception_class.get() == nullptr)) { 158130646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes CHECK(IsExceptionPending()); 158262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers LOG(ERROR) << "No exception class " << PrettyDescriptor(exception_class_descriptor); 158330646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes return; 158430646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 158562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 1586c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier if (UNLIKELY(!runtime->GetClassLinker()->EnsureInitialized(exception_class, true, true))) { 158762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK(IsExceptionPending()); 158862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return; 158962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 159062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DCHECK(!runtime->IsStarted() || exception_class->IsThrowableClass()); 159162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SirtRef<mirror::Throwable> exception(this, 159262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers down_cast<mirror::Throwable*>(exception_class->AllocObject(this))); 159362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 1594590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier // If we couldn't allocate the exception, throw the pre-allocated out of memory exception. 1595590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier if (exception.get() == nullptr) { 1596c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier ThrowLocation gc_safe_throw_location(saved_throw_this.get(), saved_throw_method.get(), 1597c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier throw_location.GetDexPc()); 1598c528dba35b5faece51ca658fc008b688f8b690adMathieu Chartier SetException(gc_safe_throw_location, Runtime::Current()->GetPreAllocatedOutOfMemoryError()); 1599590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier return; 1600590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier } 1601590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier 160262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Choose an appropriate constructor and set up the arguments. 160362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers const char* signature; 160453b8b09fc80329539585dcf43657bc5f4ecefdffIan Rogers ScopedLocalRef<jstring> msg_string(GetJniEnv(), nullptr); 16050aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (msg != nullptr) { 160662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Ensure we remember this and the method over the String allocation. 160753b8b09fc80329539585dcf43657bc5f4ecefdffIan Rogers msg_string.reset( 160853b8b09fc80329539585dcf43657bc5f4ecefdffIan Rogers soa.AddLocalReference<jstring>(mirror::String::AllocFromModifiedUtf8(this, msg))); 16090aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (UNLIKELY(msg_string.get() == nullptr)) { 161062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CHECK(IsExceptionPending()); // OOME. 161162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return; 161262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 16130aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (cause.get() == nullptr) { 161462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers signature = "(Ljava/lang/String;)V"; 1615ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom } else { 161662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers signature = "(Ljava/lang/String;Ljava/lang/Throwable;)V"; 161762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 161862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 16190aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (cause.get() == nullptr) { 162062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers signature = "()V"; 162162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 162262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers signature = "(Ljava/lang/Throwable;)V"; 1623ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom } 1624ebd1fd233c8e14f50844f15109ccd50b27079722Brian Carlstrom } 1625ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* exception_init_method = 162662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers exception_class->FindDeclaredDirectMethod("<init>", signature); 162762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 16280aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(exception_init_method != nullptr) << "No <init>" << signature << " in " 162962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers << PrettyDescriptor(exception_class_descriptor); 163062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 163162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (UNLIKELY(!runtime->IsStarted())) { 163262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Something is trying to throw an exception without a started runtime, which is the common 163362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // case in the compiler. We won't be able to invoke the constructor of the exception, so set 163462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // the exception fields directly. 16350aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (msg != nullptr) { 163653b8b09fc80329539585dcf43657bc5f4ecefdffIan Rogers exception->SetDetailMessage(down_cast<mirror::String*>(DecodeJObject(msg_string.get()))); 163762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 16380aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (cause.get() != nullptr) { 163953b8b09fc80329539585dcf43657bc5f4ecefdffIan Rogers exception->SetCause(down_cast<mirror::Throwable*>(DecodeJObject(cause.get()))); 164062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 164162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation gc_safe_throw_location(saved_throw_this.get(), saved_throw_method.get(), 164262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers throw_location.GetDexPc()); 164362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SetException(gc_safe_throw_location, exception.get()); 164462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 164553b8b09fc80329539585dcf43657bc5f4ecefdffIan Rogers jvalue jv_args[2]; 164653b8b09fc80329539585dcf43657bc5f4ecefdffIan Rogers size_t i = 0; 164753b8b09fc80329539585dcf43657bc5f4ecefdffIan Rogers 16480aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (msg != nullptr) { 164953b8b09fc80329539585dcf43657bc5f4ecefdffIan Rogers jv_args[i].l = msg_string.get(); 165053b8b09fc80329539585dcf43657bc5f4ecefdffIan Rogers ++i; 165162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 16520aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (cause.get() != nullptr) { 165353b8b09fc80329539585dcf43657bc5f4ecefdffIan Rogers jv_args[i].l = cause.get(); 165453b8b09fc80329539585dcf43657bc5f4ecefdffIan Rogers ++i; 165562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 165653b8b09fc80329539585dcf43657bc5f4ecefdffIan Rogers InvokeWithJValues(soa, exception.get(), soa.EncodeMethod(exception_init_method), jv_args); 165762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (LIKELY(!IsExceptionPending())) { 165862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation gc_safe_throw_location(saved_throw_this.get(), saved_throw_method.get(), 165962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers throw_location.GetDexPc()); 166062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SetException(gc_safe_throw_location, exception.get()); 166162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 166230646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 1663a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes} 1664a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes 16652ced6a534157d5d963693346904389c19775d2daElliott Hughesvoid Thread::ThrowOutOfMemoryError(const char* msg) { 16662ced6a534157d5d963693346904389c19775d2daElliott Hughes LOG(ERROR) << StringPrintf("Throwing OutOfMemoryError \"%s\"%s", 1667dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers msg, (tls32_.throwing_OutOfMemoryError ? " (recursive case)" : "")); 166862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation throw_location = GetCurrentLocationForThrow(); 1669dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers if (!tls32_.throwing_OutOfMemoryError) { 1670dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tls32_.throwing_OutOfMemoryError = true; 167162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowNewException(throw_location, "Ljava/lang/OutOfMemoryError;", msg); 1672dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tls32_.throwing_OutOfMemoryError = false; 1673418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes } else { 16747934ac288acfb2552bb0b06ec1f61e5820d924a4Brian Carlstrom Dump(LOG(ERROR)); // The pre-allocated OOME has no stack, so help out and log one. 167562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SetException(throw_location, Runtime::Current()->GetPreAllocatedOutOfMemoryError()); 1676418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes } 167779082e367845bbd68ec44ef2ddd1be8ef0e1550fElliott Hughes} 167879082e367845bbd68ec44ef2ddd1be8ef0e1550fElliott Hughes 1679498508c1187dc07d3eae5476784cde20f5224d93Elliott HughesThread* Thread::CurrentFromGdb() { 1680accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes return Thread::Current(); 1681accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes} 1682accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1683accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughesvoid Thread::DumpFromGdb() const { 16846b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom std::ostringstream ss; 16856b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom Dump(ss); 1686955724179c6c739524f610023287f56b24dc31deElliott Hughes std::string str(ss.str()); 16876b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom // log to stderr for debugging command line processes 16886b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom std::cerr << str; 16896b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom#ifdef HAVE_ANDROID_OS 16906b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom // log to logcat for debugging frameworks processes 16916b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom LOG(INFO) << str; 16926b4ef025af12b158d117fc80fc79acf620f411a0Brian Carlstrom#endif 1693accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes} 1694accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1695dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers// Explicitly instantiate 32 and 64bit thread offset dumping support. 1696dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogerstemplate void Thread::DumpThreadOffset<4>(std::ostream& os, uint32_t offset); 1697dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogerstemplate void Thread::DumpThreadOffset<8>(std::ostream& os, uint32_t offset); 169898e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes 1699dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogerstemplate<size_t ptr_size> 1700dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogersvoid Thread::DumpThreadOffset(std::ostream& os, uint32_t offset) { 1701dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers#define DO_THREAD_OFFSET(x, y) \ 1702dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers if (offset == x.Uint32Value()) { \ 1703dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers os << y; \ 1704f69863b3039fc621ff4250e262d2a024d5e79ec8Brian Carlstrom return; \ 1705f69863b3039fc621ff4250e262d2a024d5e79ec8Brian Carlstrom } 1706dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers DO_THREAD_OFFSET(ThreadFlagsOffset<ptr_size>(), "state_and_flags") 1707dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers DO_THREAD_OFFSET(CardTableOffset<ptr_size>(), "card_table") 1708dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers DO_THREAD_OFFSET(ExceptionOffset<ptr_size>(), "exception") 1709dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers DO_THREAD_OFFSET(PeerOffset<ptr_size>(), "peer"); 1710dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers DO_THREAD_OFFSET(JniEnvOffset<ptr_size>(), "jni_env") 1711dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers DO_THREAD_OFFSET(SelfOffset<ptr_size>(), "self") 1712dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers DO_THREAD_OFFSET(StackEndOffset<ptr_size>(), "stack_end") 1713dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers DO_THREAD_OFFSET(ThinLockIdOffset<ptr_size>(), "thin_lock_thread_id") 1714dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers DO_THREAD_OFFSET(TopOfManagedStackOffset<ptr_size>(), "top_quick_frame_method") 1715dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers DO_THREAD_OFFSET(TopOfManagedStackPcOffset<ptr_size>(), "top_quick_frame_pc") 1716dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers DO_THREAD_OFFSET(TopShadowFrameOffset<ptr_size>(), "top_shadow_frame") 1717dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers DO_THREAD_OFFSET(TopSirtOffset<ptr_size>(), "top_sirt") 1718dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers DO_THREAD_OFFSET(ThreadSuspendTriggerOffset<ptr_size>(), "suspend_trigger") 171928fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes#undef DO_THREAD_OFFSET 172098e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes 1721dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers#define INTERPRETER_ENTRY_POINT_INFO(x) \ 1722dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers if (INTERPRETER_ENTRYPOINT_OFFSET(ptr_size, x).Uint32Value() == offset) { \ 1723dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers os << #x; \ 1724dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers return; \ 172598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes } 1726dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers INTERPRETER_ENTRY_POINT_INFO(pInterpreterToInterpreterBridge) 1727dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers INTERPRETER_ENTRY_POINT_INFO(pInterpreterToCompiledCodeBridge) 1728dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers#undef INTERPRETER_ENTRY_POINT_INFO 1729dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers 1730dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers#define JNI_ENTRY_POINT_INFO(x) \ 1731dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers if (JNI_ENTRYPOINT_OFFSET(ptr_size, x).Uint32Value() == offset) { \ 1732dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers os << #x; \ 1733dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers return; \ 1734dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers } 1735dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers JNI_ENTRY_POINT_INFO(pDlsymLookup) 1736dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers#undef JNI_ENTRY_POINT_INFO 1737dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers 1738dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers#define PORTABLE_ENTRY_POINT_INFO(x) \ 1739dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers if (PORTABLE_ENTRYPOINT_OFFSET(ptr_size, x).Uint32Value() == offset) { \ 1740dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers os << #x; \ 1741dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers return; \ 1742dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers } 1743dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers PORTABLE_ENTRY_POINT_INFO(pPortableImtConflictTrampoline) 1744dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers PORTABLE_ENTRY_POINT_INFO(pPortableResolutionTrampoline) 1745dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers PORTABLE_ENTRY_POINT_INFO(pPortableToInterpreterBridge) 1746dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers#undef PORTABLE_ENTRY_POINT_INFO 1747dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers 1748dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers#define QUICK_ENTRY_POINT_INFO(x) \ 1749dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers if (QUICK_ENTRYPOINT_OFFSET(ptr_size, x).Uint32Value() == offset) { \ 1750dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers os << #x; \ 1751dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers return; \ 1752dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers } 1753dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pAllocArray) 1754dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pAllocArrayResolved) 1755dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pAllocArrayWithAccessCheck) 1756dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pAllocObject) 1757dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pAllocObjectResolved) 1758dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pAllocObjectInitialized) 1759dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pAllocObjectWithAccessCheck) 1760dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pCheckAndAllocArray) 1761dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pCheckAndAllocArrayWithAccessCheck) 1762dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pInstanceofNonTrivial) 1763dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pCheckCast) 1764dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pInitializeStaticStorage) 1765dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pInitializeTypeAndVerifyAccess) 1766dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pInitializeType) 1767dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pResolveString) 1768dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pSet32Instance) 1769dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pSet32Static) 1770dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pSet64Instance) 1771dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pSet64Static) 1772dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pSetObjInstance) 1773dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pSetObjStatic) 1774dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pGet32Instance) 1775dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pGet32Static) 1776dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pGet64Instance) 1777dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pGet64Static) 1778dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pGetObjInstance) 1779dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pGetObjStatic) 1780dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pAputObjectWithNullAndBoundCheck) 1781dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pAputObjectWithBoundCheck) 1782dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pAputObject) 1783dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pHandleFillArrayData) 1784dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodStart) 1785dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodStartSynchronized) 1786dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodEnd) 1787dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodEndSynchronized) 1788dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodEndWithReference) 1789dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pJniMethodEndWithReferenceSynchronized) 1790dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pQuickGenericJniTrampoline) 1791dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pLockObject) 1792dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pUnlockObject) 1793dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pCmpgDouble) 1794dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pCmpgFloat) 1795dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pCmplDouble) 1796dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pCmplFloat) 1797dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pFmod) 1798dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pSqrt) 1799dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pL2d) 1800dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pFmodf) 1801dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pL2f) 1802dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pD2iz) 1803dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pF2iz) 1804dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pIdivmod) 1805dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pD2l) 1806dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pF2l) 1807dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pLdiv) 1808dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pLmod) 1809dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pLmul) 1810dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pShlLong) 1811dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pShrLong) 1812dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pUshrLong) 1813dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pIndexOf) 1814dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pMemcmp16) 1815dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pStringCompareTo) 1816dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pMemcpy) 1817dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pQuickImtConflictTrampoline) 1818dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pQuickResolutionTrampoline) 1819dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pQuickToInterpreterBridge) 1820dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pInvokeDirectTrampolineWithAccessCheck) 1821dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pInvokeInterfaceTrampolineWithAccessCheck) 1822dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pInvokeStaticTrampolineWithAccessCheck) 1823dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pInvokeSuperTrampolineWithAccessCheck) 1824dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pInvokeVirtualTrampolineWithAccessCheck) 1825dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pCheckSuspend) 1826dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pTestSuspend) 1827dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pDeliverException) 1828dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pThrowArrayBounds) 1829dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pThrowDivZero) 1830dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pThrowNoSuchMethod) 1831dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pThrowNullPointer) 1832dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers QUICK_ENTRY_POINT_INFO(pThrowStackOverflow) 1833dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers#undef QUICK_ENTRY_POINT_INFO 1834dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers 183598e2017cac7ca554602480fcefabbbe630a4a39bElliott Hughes os << offset; 183628fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes} 183728fa76d17d741238da86dbdb47f721ae97c9eac8Elliott Hughes 183894d6df471a406a03bb1afba8ca3ae9c0fbf366b5jeffhaovoid Thread::QuickDeliverException() { 183962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Get exception from thread. 184062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ThrowLocation throw_location; 184162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Throwable* exception = GetException(&throw_location); 18420aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(exception != nullptr); 184328ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers // Don't leave exception visible while we try to find the handler, which may cause class 1844d07986fad0d08cdf05505cf9230714a2cf0dd9aeElliott Hughes // resolution. 184528ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers ClearException(); 184662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers bool is_deoptimization = (exception == reinterpret_cast<mirror::Throwable*>(-1)); 184728ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers if (kDebugExceptionDelivery) { 184862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (!is_deoptimization) { 184962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::String* msg = exception->GetDetailMessage(); 18500aded089f565008ba5908e395e5914ca4f91f2deDave Allison std::string str_msg(msg != nullptr ? msg->ToModifiedUtf8() : ""); 185162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DumpStack(LOG(INFO) << "Delivering exception: " << PrettyTypeOf(exception) 185262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers << ": " << str_msg << "\n"); 185362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } else { 185462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers DumpStack(LOG(INFO) << "Deoptimizing: "); 185562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 185628ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers } 1857d45a1f5d1dd5bc9badfab3a8aee90c934d9f2227Sebastien Hertz CatchFinder catch_finder(this, throw_location, exception, is_deoptimization); 1858d45a1f5d1dd5bc9badfab3a8aee90c934d9f2227Sebastien Hertz catch_finder.FindCatch(); 1859d45a1f5d1dd5bc9badfab3a8aee90c934d9f2227Sebastien Hertz catch_finder.UpdateInstrumentationStack(); 18600399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers catch_finder.DoLongJump(); 18619a8a8889418e09bf2d4ae3f683fbb40a71c3c8f4Ian Rogers LOG(FATAL) << "UNREACHABLE"; 1862bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers} 1863bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 1864bdb0391258abc54bf77c676e36847d28a783bfe5Ian RogersContext* Thread::GetLongJumpContext() { 1865dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers Context* result = tlsPtr_.long_jump_context; 18660aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (result == nullptr) { 1867bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers result = Context::Create(); 18680399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } else { 1869dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.long_jump_context = nullptr; // Avoid context being shared. 18706702243ea2332b566d8e8b871cc9db0906d835adMathieu Chartier result->Reset(); 18711a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 1872bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers return result; 18731a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao} 18741a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 1875e0dcd46314d07eeb332edea292f5110178e4e3d2Ian Rogersstruct CurrentMethodVisitor FINAL : public StackVisitor { 187662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CurrentMethodVisitor(Thread* thread, Context* context) 187762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 18780aded089f565008ba5908e395e5914ca4f91f2deDave Allison : StackVisitor(thread, context), this_object_(nullptr), method_(nullptr), dex_pc_(0) {} 1879e0dcd46314d07eeb332edea292f5110178e4e3d2Ian Rogers bool VisitFrame() OVERRIDE SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1880ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = GetMethod(); 188162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers if (m->IsRuntimeMethod()) { 188262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers // Continue if this is a runtime method. 188362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return true; 188462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 18850aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (context_ != nullptr) { 188662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers this_object_ = GetThisObject(); 18870399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 188862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers method_ = m; 188962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers dex_pc_ = GetDexPc(); 189062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return false; 189162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 189262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers mirror::Object* this_object_; 1893ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* method_; 189462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers uint32_t dex_pc_; 189562d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers}; 18960399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers 1897ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrommirror::ArtMethod* Thread::GetCurrentMethod(uint32_t* dex_pc) const { 18980aded089f565008ba5908e395e5914ca4f91f2deDave Allison CurrentMethodVisitor visitor(const_cast<Thread*>(this), nullptr); 18990399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers visitor.WalkStack(false); 19000aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (dex_pc != nullptr) { 19010399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers *dex_pc = visitor.dex_pc_; 1902d07986fad0d08cdf05505cf9230714a2cf0dd9aeElliott Hughes } 19030399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers return visitor.method_; 1904ee0d3fb2fbd736484fe8c3177a4e965ea86d1c65TDYa} 190533dc7717cd16592bcc825350bea6305be9eb2ea1jeffhao 190662d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian RogersThrowLocation Thread::GetCurrentLocationForThrow() { 190762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers Context* context = GetLongJumpContext(); 190862d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers CurrentMethodVisitor visitor(this, context); 190962d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers visitor.WalkStack(false); 191062d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers ReleaseLongJumpContext(context); 191162d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers return ThrowLocation(visitor.this_object_, visitor.method_, visitor.dex_pc_); 191262d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers} 191362d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers 1914dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogersbool Thread::HoldsLock(mirror::Object* object) const { 19150aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (object == nullptr) { 19165f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes return false; 19175f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 1918dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers return object->GetLockOwnerThreadId() == GetThreadId(); 19195f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes} 19205f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes 192140e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogers// RootVisitor parameters are: (const Object* obj, size_t vreg, const StackVisitor* visitor). 192240e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogerstemplate <typename RootVisitor> 19230399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogersclass ReferenceMapVisitor : public StackVisitor { 1924d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers public: 19257a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers ReferenceMapVisitor(Thread* thread, Context* context, const RootVisitor& visitor) 1926b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) 19277a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers : StackVisitor(thread, context), visitor_(visitor) {} 1928d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 1929b726dcb581bf72da46527378ccb6889020f0e6e9Ian Rogers bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 19306a4be3a6226cec645cf905dd352e44f7968a7fa4Brian Carlstrom if (false) { 19310399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers LOG(INFO) << "Visiting stack roots in " << PrettyMethod(GetMethod()) 19320399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers << StringPrintf("@ PC:%04x", GetDexPc()); 19336a4be3a6226cec645cf905dd352e44f7968a7fa4Brian Carlstrom } 19340399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ShadowFrame* shadow_frame = GetCurrentShadowFrame(); 19350aded089f565008ba5908e395e5914ca4f91f2deDave Allison if (shadow_frame != nullptr) { 1936ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = shadow_frame->GetMethod(); 1937ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa size_t num_regs = shadow_frame->NumberOfVRegs(); 1938ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa if (m->IsNative() || shadow_frame->HasReferenceArray()) { 1939ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa // SIRT for JNI or References for interpreter. 1940ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa for (size_t reg = 0; reg < num_regs; ++reg) { 19412dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* ref = shadow_frame->GetVRegReference(reg); 1942423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (ref != nullptr) { 1943815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier mirror::Object* new_ref = ref; 1944815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier visitor_(&new_ref, reg, this); 1945423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (new_ref != ref) { 1946423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier shadow_frame->SetVRegReference(reg, new_ref); 1947423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier } 1948ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 1949ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 1950ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } else { 1951ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa // Java method. 1952ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa // Portable path use DexGcMap and store in Method.native_gc_map_. 1953ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa const uint8_t* gc_map = m->GetNativeGcMap(); 19547c6aca27dd2df58ac3d83a93ec5848e2b7d3159aBrian Carlstrom CHECK(gc_map != nullptr) << PrettyMethod(m); 19558171fc34bf74ed0df02385787d916bc13eb7f160Vladimir Marko verifier::DexPcToReferenceMap dex_gc_map(gc_map); 1956ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa uint32_t dex_pc = GetDexPc(); 1957ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa const uint8_t* reg_bitmap = dex_gc_map.FindBitMap(dex_pc); 19580aded089f565008ba5908e395e5914ca4f91f2deDave Allison DCHECK(reg_bitmap != nullptr); 1959ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa num_regs = std::min(dex_gc_map.RegWidth() * 8, num_regs); 1960ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa for (size_t reg = 0; reg < num_regs; ++reg) { 1961ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa if (TestBitmap(reg, reg_bitmap)) { 19622dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* ref = shadow_frame->GetVRegReference(reg); 1963423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (ref != nullptr) { 1964815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier mirror::Object* new_ref = ref; 1965815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier visitor_(&new_ref, reg, this); 1966423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (new_ref != ref) { 1967423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier shadow_frame->SetVRegReference(reg, new_ref); 1968423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier } 1969ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 1970ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 1971ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 1972ce4cc0d1818e872c1c7f3c3519a82259afd5c288TDYa } 19730399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } else { 1974ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod* m = GetMethod(); 19750399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers // Process register map (which native and runtime methods don't have) 1976640495bd1aebcd0b429d59f62b57d0c984b2d8c6Ian Rogers if (!m->IsNative() && !m->IsRuntimeMethod() && !m->IsProxyMethod()) { 19770c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const uint8_t* native_gc_map = m->GetNativeGcMap(); 19780aded089f565008ba5908e395e5914ca4f91f2deDave Allison CHECK(native_gc_map != nullptr) << PrettyMethod(m); 19790c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers mh_.ChangeMethod(m); 19800c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const DexFile::CodeItem* code_item = mh_.GetCodeItem(); 19810aded089f565008ba5908e395e5914ca4f91f2deDave Allison DCHECK(code_item != nullptr) << PrettyMethod(m); // Can't be nullptr or how would we compile its instructions? 19820c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers NativePcOffsetToReferenceMap map(native_gc_map); 19830399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers size_t num_regs = std::min(map.RegWidth() * 8, 19840399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers static_cast<size_t>(code_item->registers_size_)); 19850c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers if (num_regs > 0) { 19860c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers const uint8_t* reg_bitmap = map.FindBitMap(GetNativePcOffset()); 19870aded089f565008ba5908e395e5914ca4f91f2deDave Allison DCHECK(reg_bitmap != nullptr); 19881809a72a66d245ae598582d658b93a24ac3bf01eIan Rogers const VmapTable vmap_table(m->GetVmapTable()); 19890c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t core_spills = m->GetCoreSpillMask(); 19900c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t fp_spills = m->GetFpSpillMask(); 19910c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers size_t frame_size = m->GetFrameSizeInBytes(); 19920c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // For all dex registers in the bitmap 1993ea46f950e7a51585db293cd7f047de190a482414Brian Carlstrom mirror::ArtMethod** cur_quick_frame = GetCurrentQuickFrame(); 19940aded089f565008ba5908e395e5914ca4f91f2deDave Allison DCHECK(cur_quick_frame != nullptr); 19950c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers for (size_t reg = 0; reg < num_regs; ++reg) { 19960c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // Does this register hold a reference? 19970c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers if (TestBitmap(reg, reg_bitmap)) { 19980c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers uint32_t vmap_offset; 19991809a72a66d245ae598582d658b93a24ac3bf01eIan Rogers if (vmap_table.IsInContext(reg, kReferenceVReg, &vmap_offset)) { 2000423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier int vmap_reg = vmap_table.ComputeRegister(core_spills, vmap_offset, kReferenceVReg); 2001815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier // This is sound as spilled GPRs will be word sized (ie 32 or 64bit). 2002815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier mirror::Object** ref_addr = reinterpret_cast<mirror::Object**>(GetGPRAddress(vmap_reg)); 2003815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier if (*ref_addr != nullptr) { 2004815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier visitor_(ref_addr, reg, this); 2005423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier } 20060c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers } else { 2007815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier StackReference<mirror::Object>* ref_addr = 2008815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier reinterpret_cast<StackReference<mirror::Object>*>( 2009815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier GetVRegAddr(cur_quick_frame, code_item, core_spills, fp_spills, frame_size, 2010815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier reg)); 2011815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier mirror::Object* ref = ref_addr->AsMirrorPtr(); 2012423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (ref != nullptr) { 2013815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier mirror::Object* new_ref = ref; 2014815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier visitor_(&new_ref, reg, this); 2015423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (ref != new_ref) { 2016815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier ref_addr->Assign(new_ref); 2017423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier } 2018423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier } 20190399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers } 2020d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 20214f894e385e8ac018f078be75fea0a45696626b15Shih-wei Liao } 2022d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 2023d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 2024d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 2025530fa005e2944d3b12712f80d974f0e753f568efElliott Hughes return true; 2026d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 2027d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 2028d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers private: 2029815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier static bool TestBitmap(size_t reg, const uint8_t* reg_vector) { 2030815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier return ((reg_vector[reg / kBitsPerByte] >> (reg % kBitsPerByte)) & 0x01) != 0; 2031d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 2032d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 20336f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier // Visitor for when we visit a root. 203440e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogers const RootVisitor& visitor_; 20356f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 20360c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers // A method helper we keep around to avoid dex file/cache re-computations. 20370c7abda482f53db3d153c073d1c7a145f84e0626Ian Rogers MethodHelper mh_; 2038d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers}; 2039d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 20406f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartierclass RootCallbackVisitor { 20416f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier public: 204283c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier RootCallbackVisitor(RootCallback* callback, void* arg, uint32_t tid) 204383c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier : callback_(callback), arg_(arg), tid_(tid) {} 20446f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 2045815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier void operator()(mirror::Object** obj, size_t, const StackVisitor*) const { 2046815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier callback_(obj, arg_, tid_, kRootJavaFrame); 20476f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier } 20486f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 20496f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier private: 205083c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier RootCallback* const callback_; 205140e3bacfd57bca2ca39c1caec64680bd0ed4a16dIan Rogers void* const arg_; 205283c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier const uint32_t tid_; 20536f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier}; 20546f1c94968ada57da433debf8e2d1b38a80ceb510Mathieu Chartier 2055590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartiervoid Thread::SetClassLoaderOverride(mirror::ClassLoader* class_loader_override) { 20564e30541a92381fb280cd0be9a1763b713ee4d64cMathieu Chartier VerifyObject(class_loader_override); 2057dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.class_loader_override = class_loader_override; 2058590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier} 2059590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier 206083c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartiervoid Thread::VisitRoots(RootCallback* visitor, void* arg) { 206183c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier uint32_t thread_id = GetThreadId(); 2062dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers if (tlsPtr_.opeer != nullptr) { 2063dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers visitor(&tlsPtr_.opeer, arg, thread_id, kRootThreadObject); 2064cfaa455374aae0a08c8cb28b5bb306b17866d652Ian Rogers } 2065dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers if (tlsPtr_.exception != nullptr) { 2066dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers visitor(reinterpret_cast<mirror::Object**>(&tlsPtr_.exception), arg, thread_id, kRootNativeStack); 2067d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 2068dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.throw_location.VisitRoots(visitor, arg); 2069dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers if (tlsPtr_.class_loader_override != nullptr) { 2070dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers visitor(reinterpret_cast<mirror::Object**>(&tlsPtr_.class_loader_override), arg, thread_id, 2071815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier kRootNativeStack); 207240381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom } 207343d8bb870fadd4775a8513a1df955cdf66ad4b92Mathieu Chartier if (tlsPtr_.monitor_enter_object != nullptr) { 207443d8bb870fadd4775a8513a1df955cdf66ad4b92Mathieu Chartier visitor(&tlsPtr_.monitor_enter_object, arg, thread_id, kRootNativeStack); 207543d8bb870fadd4775a8513a1df955cdf66ad4b92Mathieu Chartier } 2076dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.jni_env->locals.VisitRoots(visitor, arg, thread_id, kRootJNILocal); 2077dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.jni_env->monitors.VisitRoots(visitor, arg, thread_id, kRootJNIMonitor); 207889bb1449bbef1863b12dfa3813ab7c78be94316fMathieu Chartier SirtVisitRoots(visitor, arg, thread_id); 2079dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers if (tlsPtr_.debug_invoke_req != nullptr) { 2080dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.debug_invoke_req->VisitRoots(visitor, arg, thread_id, kRootDebugger); 20813b05e9ba874449dbff65b01b8781001f7d93eea6Mathieu Chartier } 2082dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers if (tlsPtr_.single_step_control != nullptr) { 2083dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.single_step_control->VisitRoots(visitor, arg, thread_id, kRootDebugger); 20843b05e9ba874449dbff65b01b8781001f7d93eea6Mathieu Chartier } 2085d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers // Visit roots on this thread's stack 20860399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers Context* context = GetLongJumpContext(); 208783c8ee000d525017ead8753fce6bc1020249b96aMathieu Chartier RootCallbackVisitor visitorToCallback(visitor, arg, thread_id); 20887a22fa657b972e8323692368975bc5a7be1cc0f5Ian Rogers ReferenceMapVisitor<RootCallbackVisitor> mapper(this, context, visitorToCallback); 20890399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers mapper.WalkStack(); 20900399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers ReleaseLongJumpContext(context); 2091423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier for (instrumentation::InstrumentationStackFrame& frame : *GetInstrumentationStack()) { 2092423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier if (frame.this_object_ != nullptr) { 2093815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier visitor(&frame.this_object_, arg, thread_id, kRootJavaFrame); 209462d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 2095423d2a3dcbb260b020efb5da59f784c9f02accbfMathieu Chartier DCHECK(frame.method_ != nullptr); 2096815873ecc312b1d231acce71e1a16f42cdaf09f2Mathieu Chartier visitor(reinterpret_cast<mirror::Object**>(&frame.method_), arg, thread_id, kRootJavaFrame); 209762d6c772205b8859f0ebf7ad105402ec4c3e2e01Ian Rogers } 2098410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes} 2099410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes 21004e30541a92381fb280cd0be9a1763b713ee4d64cMathieu Chartierstatic void VerifyRoot(mirror::Object** root, void* /*arg*/, uint32_t /*thread_id*/, 21014e30541a92381fb280cd0be9a1763b713ee4d64cMathieu Chartier RootType /*root_type*/) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 21024e30541a92381fb280cd0be9a1763b713ee4d64cMathieu Chartier VerifyObject(*root); 2103250455229aa0cc07bbd18174efe510bd52631a99jeffhao} 2104250455229aa0cc07bbd18174efe510bd52631a99jeffhao 210504d7aa92bc5548bc4d272b9480614f06248194ccIan Rogersvoid Thread::VerifyStackImpl() { 2106e66ac79b90a12b01b9d67ee9f7f586e638e67fabjeffhao UniquePtr<Context> context(Context::Create()); 210789bb1449bbef1863b12dfa3813ab7c78be94316fMathieu Chartier RootCallbackVisitor visitorToCallback(VerifyRoot, Runtime::Current()->GetHeap(), GetThreadId()); 210804d7aa92bc5548bc4d272b9480614f06248194ccIan Rogers ReferenceMapVisitor<RootCallbackVisitor> mapper(this, context.get(), visitorToCallback); 21090399dde18753aa9bd2bd0d7cf60beef154d164a4Ian Rogers mapper.WalkStack(); 2110250455229aa0cc07bbd18174efe510bd52631a99jeffhao} 2111250455229aa0cc07bbd18174efe510bd52631a99jeffhao 211200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers// Set the stack end to that to be used during a stack overflow 211300f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogersvoid Thread::SetStackEndForStackOverflow() { 21147571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom // During stack overflow we allow use of the full stack. 2115dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers if (tlsPtr_.stack_end == tlsPtr_.stack_begin) { 21167571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom // However, we seem to have already extended to use the full stack. 21177571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom LOG(ERROR) << "Need to increase kStackOverflowReservedBytes (currently " 21187571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom << kStackOverflowReservedBytes << ")?"; 21197571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom DumpStack(LOG(ERROR)); 21207571e8b761ebc2c923525e12ea9fcf07e62cb33eBrian Carlstrom LOG(FATAL) << "Recursive stack overflow."; 212100f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers } 212200f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 2123dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.stack_end = tlsPtr_.stack_begin; 212400f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers} 212500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers 2126e6da9af8dfe0a3e3fbc2be700554f6478380e7b9Mathieu Chartiervoid Thread::SetTlab(byte* start, byte* end) { 2127692fafd9778141fa6ef0048c9569abd7ee0253bfMathieu Chartier DCHECK_LE(start, end); 2128dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.thread_local_start = start; 2129dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.thread_local_pos = tlsPtr_.thread_local_start; 2130dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.thread_local_end = end; 2131dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers tlsPtr_.thread_local_objects = 0; 2132692fafd9778141fa6ef0048c9569abd7ee0253bfMathieu Chartier} 2133692fafd9778141fa6ef0048c9569abd7ee0253bfMathieu Chartier 2134c93c530efc175954160c3834c93961a1a946a35aHiroshi Yamauchibool Thread::HasTlab() const { 2135dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers bool has_tlab = tlsPtr_.thread_local_pos != nullptr; 2136c93c530efc175954160c3834c93961a1a946a35aHiroshi Yamauchi if (has_tlab) { 2137dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers DCHECK(tlsPtr_.thread_local_start != nullptr && tlsPtr_.thread_local_end != nullptr); 2138c93c530efc175954160c3834c93961a1a946a35aHiroshi Yamauchi } else { 2139dd7624d2b9e599d57762d12031b10b89defc9807Ian Rogers DCHECK(tlsPtr_.thread_local_start == nullptr && tlsPtr_.thread_local_end == nullptr); 2140c93c530efc175954160c3834c93961a1a946a35aHiroshi Yamauchi } 2141c93c530efc175954160c3834c93961a1a946a35aHiroshi Yamauchi return has_tlab; 2142c93c530efc175954160c3834c93961a1a946a35aHiroshi Yamauchi} 2143c93c530efc175954160c3834c93961a1a946a35aHiroshi Yamauchi 2144330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughesstd::ostream& operator<<(std::ostream& os, const Thread& thread) { 214500f7d0eaa6bd93d33bf0c1429bf4ba0b3f28abacIan Rogers thread.ShortDump(os); 2146330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes return os; 2147330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes} 2148330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes 21498daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes} // namespace art 2150