thread.cc revision 40381fb9dc4b4cf274f1e58b2cdf4396202c6189
18d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes/* 28d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * Copyright (C) 2011 The Android Open Source Project 38d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * 48d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * Licensed under the Apache License, Version 2.0 (the "License"); 58d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * you may not use this file except in compliance with the License. 68d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * You may obtain a copy of the License at 78d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * 88d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * http://www.apache.org/licenses/LICENSE-2.0 98d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * 108d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * Unless required by applicable law or agreed to in writing, software 118d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * distributed under the License is distributed on an "AS IS" BASIS, 128d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 138d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * See the License for the specific language governing permissions and 148d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * limitations under the License. 158d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes */ 16b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 17578bbdc684db8ed68e9fedbc678669d27fa68b6eBrian Carlstrom#include "thread.h" 18b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 198d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes#include <dynamic_annotations.h> 20b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers#include <pthread.h> 21b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers#include <sys/mman.h> 22a09576416788b916095739e43a16917e7948f3a4Elliott Hughes 23b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro#include <algorithm> 24dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes#include <bitset> 25eb4f614f2eb53b92ebd416fa418f550861655887Elliott Hughes#include <cerrno> 26a09576416788b916095739e43a16917e7948f3a4Elliott Hughes#include <iostream> 27b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro#include <list> 28b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 29a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes#include "class_linker.h" 30df143242f4beaad4cc9fbabebfc033b68c40964eBrian Carlstrom#include "class_loader.h" 31bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers#include "context.h" 32d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers#include "dex_verifier.h" 33408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers#include "heap.h" 34c5f7c91ab89055cffb573fff7e06dbdd860bccedElliott Hughes#include "jni_internal.h" 358e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes#include "monitor.h" 36a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes#include "object.h" 37578bbdc684db8ed68e9fedbc678669d27fa68b6eBrian Carlstrom#include "runtime.h" 385433072f589b61413e042eddf76e8190a048f71dbuzbee#include "runtime_support.h" 39726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes#include "ScopedLocalRef.h" 40aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers#include "scoped_jni_thread_state.h" 4168e76526e98432625464022cb26f66b9ef6f5af4Elliott Hughes#include "stack.h" 4268e76526e98432625464022cb26f66b9ef6f5af4Elliott Hughes#include "stack_indirect_reference_table.h" 438daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes#include "thread_list.h" 44a09576416788b916095739e43a16917e7948f3a4Elliott Hughes#include "utils.h" 45b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 46b557353b22c728eecbd1c68593b482622c7782a8Carl Shapironamespace art { 47b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 48b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiropthread_key_t Thread::pthread_key_self_; 49b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 508e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughesstatic Class* gThreadLock = NULL; 5129f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughesstatic Class* gThrowable = NULL; 52038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughesstatic Field* gThread_daemon = NULL; 53038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughesstatic Field* gThread_group = NULL; 54038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughesstatic Field* gThread_lock = NULL; 55038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughesstatic Field* gThread_name = NULL; 56038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughesstatic Field* gThread_priority = NULL; 5729f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughesstatic Field* gThread_uncaughtHandler = NULL; 58038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughesstatic Field* gThread_vmData = NULL; 59038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughesstatic Field* gThreadGroup_name = NULL; 608e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughesstatic Field* gThreadLock_thread = NULL; 61038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughesstatic Method* gThread_run = NULL; 6229f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughesstatic Method* gThreadGroup_removeThread = NULL; 6329f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughesstatic Method* gUncaughtExceptionHandler_uncaughtException = NULL; 64038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes 653ea4ec5629613013ad9b0d7a69abdb94491ac46fbuzbeevoid Thread::InitFunctionPointers() { 665433072f589b61413e042eddf76e8190a048f71dbuzbee#if defined(__arm__) 675433072f589b61413e042eddf76e8190a048f71dbuzbee pShlLong = art_shl_long; 685433072f589b61413e042eddf76e8190a048f71dbuzbee pShrLong = art_shr_long; 695433072f589b61413e042eddf76e8190a048f71dbuzbee pUshrLong = art_ushr_long; 707b1b86d68244b0bb4ea3f43505eb45fdd46814d6buzbee pIdiv = __aeabi_idiv; 717b1b86d68244b0bb4ea3f43505eb45fdd46814d6buzbee pIdivmod = __aeabi_idivmod; 727b1b86d68244b0bb4ea3f43505eb45fdd46814d6buzbee pI2f = __aeabi_i2f; 737b1b86d68244b0bb4ea3f43505eb45fdd46814d6buzbee pF2iz = __aeabi_f2iz; 747b1b86d68244b0bb4ea3f43505eb45fdd46814d6buzbee pD2f = __aeabi_d2f; 757b1b86d68244b0bb4ea3f43505eb45fdd46814d6buzbee pF2d = __aeabi_f2d; 767b1b86d68244b0bb4ea3f43505eb45fdd46814d6buzbee pD2iz = __aeabi_d2iz; 777b1b86d68244b0bb4ea3f43505eb45fdd46814d6buzbee pL2f = __aeabi_l2f; 787b1b86d68244b0bb4ea3f43505eb45fdd46814d6buzbee pL2d = __aeabi_l2d; 797b1b86d68244b0bb4ea3f43505eb45fdd46814d6buzbee pFadd = __aeabi_fadd; 807b1b86d68244b0bb4ea3f43505eb45fdd46814d6buzbee pFsub = __aeabi_fsub; 817b1b86d68244b0bb4ea3f43505eb45fdd46814d6buzbee pFdiv = __aeabi_fdiv; 827b1b86d68244b0bb4ea3f43505eb45fdd46814d6buzbee pFmul = __aeabi_fmul; 837b1b86d68244b0bb4ea3f43505eb45fdd46814d6buzbee pFmodf = fmodf; 847b1b86d68244b0bb4ea3f43505eb45fdd46814d6buzbee pDadd = __aeabi_dadd; 857b1b86d68244b0bb4ea3f43505eb45fdd46814d6buzbee pDsub = __aeabi_dsub; 867b1b86d68244b0bb4ea3f43505eb45fdd46814d6buzbee pDdiv = __aeabi_ddiv; 877b1b86d68244b0bb4ea3f43505eb45fdd46814d6buzbee pDmul = __aeabi_dmul; 887b1b86d68244b0bb4ea3f43505eb45fdd46814d6buzbee pFmod = fmod; 897b1b86d68244b0bb4ea3f43505eb45fdd46814d6buzbee pLdivmod = __aeabi_ldivmod; 90439c4fa0db980fb19e4a585723a64a3461e4c278buzbee pLmul = __aeabi_lmul; 91b408de744566a5c5a80be1ba7f5c88407e816945Elliott Hughes pAllocArrayFromCode = art_alloc_array_from_code; 926fd03fb67e4628689f0abf34edeacc0e35b6295eBrian Carlstrom pAllocObjectFromCode = art_alloc_object_from_code; 93e51a511ccee3f3c0120807321bcc160fcaa664beIan Rogers pCanPutArrayElementFromCode = art_can_put_array_element_from_code; 94b408de744566a5c5a80be1ba7f5c88407e816945Elliott Hughes pCheckAndAllocArrayFromCode = art_check_and_alloc_array_from_code; 95ff1ed4770bf7ff024a807b9f909b1a26abb78341Ian Rogers pCheckCastFromCode = art_check_cast_from_code; 96ce9eca6de042f26e9eebc41c9bee8b4d14f753aaIan Rogers pFindInstanceFieldFromCode = art_find_instance_field_from_code; 97ce9eca6de042f26e9eebc41c9bee8b4d14f753aaIan Rogers pGet32Static = art_get32_static_from_code; 98ce9eca6de042f26e9eebc41c9bee8b4d14f753aaIan Rogers pGet64Static = art_get64_static_from_code; 99ce9eca6de042f26e9eebc41c9bee8b4d14f753aaIan Rogers pGetObjStatic = art_get_obj_static_from_code; 100ff1ed4770bf7ff024a807b9f909b1a26abb78341Ian Rogers pHandleFillArrayDataFromCode = art_handle_fill_data_from_code; 101cbba6ac9bf9a6c630a7aafae6d8767b5ddbb6fd5Ian Rogers pInitializeStaticStorage = art_initialize_static_storage_from_code; 1024a3164faefd255b1c1e911e7ad7c3d57749caaf6buzbee pInvokeInterfaceTrampoline = art_invoke_interface_trampoline; 1036fd03fb67e4628689f0abf34edeacc0e35b6295eBrian Carlstrom pLockObjectFromCode = art_lock_object_from_code; 1046fd03fb67e4628689f0abf34edeacc0e35b6295eBrian Carlstrom pObjectInit = art_object_init_from_code; 1056fd03fb67e4628689f0abf34edeacc0e35b6295eBrian Carlstrom pResolveStringFromCode = art_resolve_string_from_code; 106ce9eca6de042f26e9eebc41c9bee8b4d14f753aaIan Rogers pSet32Static = art_set32_static_from_code; 107ce9eca6de042f26e9eebc41c9bee8b4d14f753aaIan Rogers pSet64Static = art_set64_static_from_code; 108ce9eca6de042f26e9eebc41c9bee8b4d14f753aaIan Rogers pSetObjStatic = art_set_obj_static_from_code; 1096fd03fb67e4628689f0abf34edeacc0e35b6295eBrian Carlstrom pTestSuspendFromCode = art_test_suspend; 110ff1ed4770bf7ff024a807b9f909b1a26abb78341Ian Rogers pThrowArrayBoundsFromCode = art_throw_array_bounds_from_code; 111ff1ed4770bf7ff024a807b9f909b1a26abb78341Ian Rogers pThrowDivZeroFromCode = art_throw_div_zero_from_code; 112c0c8dc8e677957d167066a2d06973126f108a6aaIan Rogers pThrowNegArraySizeFromCode = art_throw_neg_array_size_from_code; 113c0c8dc8e677957d167066a2d06973126f108a6aaIan Rogers pThrowNoSuchMethodFromCode = art_throw_no_such_method_from_code; 114ff1ed4770bf7ff024a807b9f909b1a26abb78341Ian Rogers pThrowNullPointerFromCode = art_throw_null_pointer_exception_from_code; 115932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers pThrowStackOverflowFromCode = art_throw_stack_overflow_from_code; 116c0c8dc8e677957d167066a2d06973126f108a6aaIan Rogers pThrowVerificationErrorFromCode = art_throw_verification_error_from_code; 117ff1ed4770bf7ff024a807b9f909b1a26abb78341Ian Rogers pUnlockObjectFromCode = art_unlock_object_from_code; 11867375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers#endif 119c396efc1baec875160afe34a3e65c46cce2bd72fbuzbee pF2l = F2L; 120c396efc1baec875160afe34a3e65c46cce2bd72fbuzbee pD2l = D2L; 1213ea4ec5629613013ad9b0d7a69abdb94491ac46fbuzbee pMemcpy = memcpy; 1224a510d8750d50b77353d0a5a891d1b9b3a48ecd5Ian Rogers pCheckSuspendFromCode = CheckSuspendFromCode; 1234a510d8750d50b77353d0a5a891d1b9b3a48ecd5Ian Rogers pDebugMe = DebugMe; 1244a510d8750d50b77353d0a5a891d1b9b3a48ecd5Ian Rogers pDecodeJObjectInThread = DecodeJObjectInThread; 1254a510d8750d50b77353d0a5a891d1b9b3a48ecd5Ian Rogers pDeliverException = art_deliver_exception_from_code; 1264a510d8750d50b77353d0a5a891d1b9b3a48ecd5Ian Rogers pFindNativeMethod = FindNativeMethod; 1271b4c85959b3d9a4a33bc2160c46c1bbde67350c7buzbee pInitializeTypeFromCode = InitializeTypeFromCode; 128caab8c4ef372db5c119bfac1911fa27b174a935cIan Rogers pInstanceofNonTrivialFromCode = IsAssignableFromCode; 1294a510d8750d50b77353d0a5a891d1b9b3a48ecd5Ian Rogers pResolveMethodFromCode = ResolveMethodFromCode; 1304a510d8750d50b77353d0a5a891d1b9b3a48ecd5Ian Rogers pThrowAbstractMethodErrorFromCode = ThrowAbstractMethodErrorFromCode; 1314a510d8750d50b77353d0a5a891d1b9b3a48ecd5Ian Rogers pUnresolvedDirectMethodTrampolineFromCode = UnresolvedDirectMethodTrampolineFromCode; 1323ea4ec5629613013ad9b0d7a69abdb94491ac46fbuzbee} 1333ea4ec5629613013ad9b0d7a69abdb94491ac46fbuzbee 134caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstromvoid Thread::InitTid() { 135caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom tid_ = ::art::GetTid(); 136caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom} 137caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom 138caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstromvoid Thread::InitAfterFork() { 139caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom InitTid(); 1403147a2347d4fd775d51ec0a558955332beb9d1feElliott Hughes#if defined(__BIONIC__) 1413147a2347d4fd775d51ec0a558955332beb9d1feElliott Hughes // Work around a bionic bug. 1423147a2347d4fd775d51ec0a558955332beb9d1feElliott Hughes struct bionic_pthread_internal_t { 1433147a2347d4fd775d51ec0a558955332beb9d1feElliott Hughes void* next; 1443147a2347d4fd775d51ec0a558955332beb9d1feElliott Hughes void** pref; 1453147a2347d4fd775d51ec0a558955332beb9d1feElliott Hughes pthread_attr_t attr; 1463147a2347d4fd775d51ec0a558955332beb9d1feElliott Hughes pid_t kernel_id; 1473147a2347d4fd775d51ec0a558955332beb9d1feElliott Hughes // et cetera. we just need 'kernel_id' so we can stop here. 1483147a2347d4fd775d51ec0a558955332beb9d1feElliott Hughes }; 1493147a2347d4fd775d51ec0a558955332beb9d1feElliott Hughes reinterpret_cast<bionic_pthread_internal_t*>(pthread_self())->kernel_id = tid_; 1503147a2347d4fd775d51ec0a558955332beb9d1feElliott Hughes#endif 151caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom} 152caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom 15378128a63b2615744760b7f8ab83df9764a5d4a95Brian Carlstromvoid* Thread::CreateCallback(void* arg) { 15493e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes Thread* self = reinterpret_cast<Thread*>(arg); 15593e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes Runtime* runtime = Runtime::Current(); 15693e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 15793e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes self->Attach(runtime); 15893e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 159038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes String* thread_name = reinterpret_cast<String*>(gThread_name->GetObject(self->peer_)); 16093e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes if (thread_name != NULL) { 16193e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes SetThreadName(thread_name->ToModifiedUtf8().c_str()); 16293e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes } 16393e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 16493e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes // Wait until it's safe to start running code. (There may have been a suspend-all 16593e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes // in progress while we were starting up.) 16693e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes runtime->GetThreadList()->WaitForGo(); 16793e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 16893e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes // TODO: say "hi" to the debugger. 16993e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes //if (gDvm.debuggerConnected) { 17093e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes // dvmDbgPostThreadStart(self); 17193e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes //} 17293e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 17393e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes // Invoke the 'run' method of our java.lang.Thread. 17493e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes CHECK(self->peer_ != NULL); 17593e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes Object* receiver = self->peer_; 176038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes Method* m = receiver->GetClass()->FindVirtualMethodForVirtualOrInterface(gThread_run); 17793e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes m->Invoke(self, receiver, NULL, NULL); 17893e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 17993e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes // Detach. 18093e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes runtime->GetThreadList()->Unregister(); 18193e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 182b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro return NULL; 183b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro} 184b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 18593e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughesvoid SetVmData(Object* managed_thread, Thread* native_thread) { 186038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes gThread_vmData->SetInt(managed_thread, reinterpret_cast<uintptr_t>(native_thread)); 18793e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes} 18893e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 18901158d7a57c8321370667a6045220237d16e0da8Elliott HughesThread* Thread::FromManagedThread(JNIEnv* env, jobject java_thread) { 19001158d7a57c8321370667a6045220237d16e0da8Elliott Hughes Object* thread = Decode<Object*>(env, java_thread); 19101158d7a57c8321370667a6045220237d16e0da8Elliott Hughes return reinterpret_cast<Thread*>(static_cast<uintptr_t>(gThread_vmData->GetInt(thread))); 19201158d7a57c8321370667a6045220237d16e0da8Elliott Hughes} 19301158d7a57c8321370667a6045220237d16e0da8Elliott Hughes 1947502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughessize_t FixStackSize(size_t stack_size) { 1957502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // A stack size of zero means "use the default". 196d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes if (stack_size == 0) { 197d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes stack_size = Runtime::Current()->GetDefaultStackSize(); 198d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 19961e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 2007502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // It's not possible to request a stack smaller than the system-defined PTHREAD_STACK_MIN. 2017502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes if (stack_size < PTHREAD_STACK_MIN) { 2027502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes stack_size = PTHREAD_STACK_MIN; 2037502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes } 2047502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 2057502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // It's likely that callers are trying to ensure they have at least a certain amount of 2067502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // stack space, so we should add our reserved space on top of what they requested, rather 2077502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // than implicitly take it away from them. 2087502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes stack_size += Thread::kStackOverflowReservedBytes; 2097502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 2107502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes // Some systems require the stack size to be a multiple of the system page size, so round up. 2117502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes stack_size = RoundUp(stack_size, kPageSize); 2127502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 2137502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes return stack_size; 2147502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes} 2157502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 2167502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughesvoid Thread::Create(Object* peer, size_t stack_size) { 2177502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes CHECK(peer != NULL); 2187502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 2197502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes stack_size = FixStackSize(stack_size); 2207502e2a419f84808518cf212b3d7145c7b959c76Elliott Hughes 22193e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes Thread* native_thread = new Thread; 22293e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes native_thread->peer_ = peer; 22393e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 22493e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes // Thread.start is synchronized, so we know that vmData is 0, 22593e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes // and know that we're not racing to assign it. 22693e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes SetVmData(peer, native_thread); 22761e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 2283147a2347d4fd775d51ec0a558955332beb9d1feElliott Hughes pthread_t new_pthread; 22961e019d291583029c01b61b93bea750f2b663c37Carl Shapiro pthread_attr_t attr; 2308d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_init, (&attr), "new thread"); 2318d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_setdetachstate, (&attr, PTHREAD_CREATE_DETACHED), "PTHREAD_CREATE_DETACHED"); 2328d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_setstacksize, (&attr, stack_size), stack_size); 2333147a2347d4fd775d51ec0a558955332beb9d1feElliott Hughes CHECK_PTHREAD_CALL(pthread_create, (&new_pthread, &attr, Thread::CreateCallback, native_thread), "new thread"); 2348d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_destroy, (&attr), "new thread"); 23561e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 23693e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes // Let the child know when it's safe to start running. 23793e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes Runtime::Current()->GetThreadList()->SignalGo(native_thread); 23893e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes} 23961e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 24093e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughesvoid Thread::Attach(const Runtime* runtime) { 24193e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes InitCpu(); 24293e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes InitFunctionPointers(); 24361e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 24493e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes thin_lock_id_ = Runtime::Current()->GetThreadList()->AllocThreadId(); 245be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 246caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom InitTid(); 24793e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes InitStackHwm(); 248dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes 2493147a2347d4fd775d51ec0a558955332beb9d1feElliott Hughes CHECK_PTHREAD_CALL(pthread_setspecific, (Thread::pthread_key_self_, this), "attach"); 250a5780dad67556297c8ca5f2608c53b193e6c4514Elliott Hughes 25193e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes jni_env_ = new JNIEnvExt(this, runtime->GetJavaVM()); 2525fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 2537a3aeb4d7580164c6a6905c63b96823b77ff5a64Elliott Hughes runtime->GetThreadList()->Register(); 25493e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes} 25593e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 25693e74e8d879270071c3aa163f8495ada8d21f42fElliott HughesThread* Thread::Attach(const Runtime* runtime, const char* name, bool as_daemon) { 25793e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes Thread* self = new Thread; 25893e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes self->Attach(runtime); 25993e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 2607a3aeb4d7580164c6a6905c63b96823b77ff5a64Elliott Hughes self->SetState(Thread::kNative); 26193e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 26293e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes SetThreadName(name); 2635fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 2645fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes // If we're the main thread, ClassLinker won't be created until after we're attached, 2655fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes // so that thread needs a two-stage attach. Regular threads don't need this hack. 2665fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes if (self->thin_lock_id_ != ThreadList::kMainId) { 2675fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes self->CreatePeer(name, as_daemon); 2685fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes } 2695fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 270726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes self->GetJniEnv()->locals.AssertEmpty(); 271726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes 2725fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes return self; 2735fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes} 2745fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 275d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughesjobject GetWellKnownThreadGroup(JNIEnv* env, const char* field_name) { 276726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes ScopedLocalRef<jclass> thread_group_class(env, env->FindClass("java/lang/ThreadGroup")); 277726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes jfieldID fid = env->GetStaticFieldID(thread_group_class.get(), field_name, "Ljava/lang/ThreadGroup;"); 278726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes return env->GetStaticObjectField(thread_group_class.get(), fid); 279d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes} 280d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 2815fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughesvoid Thread::CreatePeer(const char* name, bool as_daemon) { 2825fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes JNIEnv* env = jni_env_; 2835fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 284d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes const char* field_name = (GetThinLockId() == ThreadList::kMainId) ? "mMain" : "mSystem"; 285726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes ScopedLocalRef<jobject> thread_group(env, GetWellKnownThreadGroup(env, field_name)); 286726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes ScopedLocalRef<jobject> thread_name(env, env->NewStringUTF(name)); 2878daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes jint thread_priority = GetNativePriority(); 2885fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes jboolean thread_is_daemon = as_daemon; 2895fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 290726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes ScopedLocalRef<jclass> c(env, env->FindClass("java/lang/Thread")); 291726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes jmethodID mid = env->GetMethodID(c.get(), "<init>", "(Ljava/lang/ThreadGroup;Ljava/lang/String;IZ)V"); 292330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes 293726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes ScopedLocalRef<jobject> peer(env, 294726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes env->NewObject(c.get(), mid, thread_group.get(), thread_name.get(), thread_priority, thread_is_daemon)); 295726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes peer_ = DecodeJObject(peer.get()); 2967a3aeb4d7580164c6a6905c63b96823b77ff5a64Elliott Hughes SetVmData(peer_, Thread::Current()); 297d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 298d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes // Because we mostly run without code available (in the compiler, in tests), we 299d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes // manually assign the fields the constructor should have set. 300d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes // TODO: lose this. 30101158d7a57c8321370667a6045220237d16e0da8Elliott Hughes gThread_daemon->SetBoolean(peer_, thread_is_daemon); 302726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes gThread_group->SetObject(peer_, Decode<Object*>(env, thread_group.get())); 303726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes gThread_name->SetObject(peer_, Decode<Object*>(env, thread_name.get())); 30401158d7a57c8321370667a6045220237d16e0da8Elliott Hughes gThread_priority->SetInt(peer_, thread_priority); 305726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes 306726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes // Pre-allocate an OutOfMemoryError for the double-OOME case. 307726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes ThrowNewException("Ljava/lang/OutOfMemoryError;", 308726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes "OutOfMemoryError thrown while trying to throw OutOfMemoryError; no stack available"); 309726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes ScopedLocalRef<jthrowable> exception(env, env->ExceptionOccurred()); 310726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes env->ExceptionClear(); 311726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes pre_allocated_OutOfMemoryError_ = Decode<Throwable*>(env, exception.get()); 31261e019d291583029c01b61b93bea750f2b663c37Carl Shapiro} 31361e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 314be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughesvoid Thread::InitStackHwm() { 315be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes pthread_attr_t attributes; 3163147a2347d4fd775d51ec0a558955332beb9d1feElliott Hughes CHECK_PTHREAD_CALL(pthread_getattr_np, (pthread_self(), &attributes), __FUNCTION__); 317be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 318932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers void* temp_stack_base; 319932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers CHECK_PTHREAD_CALL(pthread_attr_getstack, (&attributes, &temp_stack_base, &stack_size_), 320932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers __FUNCTION__); 321932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers stack_base_ = reinterpret_cast<byte*>(temp_stack_base); 322be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 323932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers if (stack_size_ <= kStackOverflowReservedBytes) { 324932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers LOG(FATAL) << "attempt to attach a thread with a too-small stack (" << stack_size_ << " bytes)"; 325be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 326449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes 327932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // Set stack_end_ to the bottom of the stack saving space of stack overflows 328932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers ResetDefaultStackEnd(); 329449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes 330449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes // Sanity check. 331449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes int stack_variable; 332449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes CHECK_GT(&stack_variable, (void*) stack_end_); 333be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 3348d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes CHECK_PTHREAD_CALL(pthread_attr_destroy, (&attributes), __FUNCTION__); 335be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes} 336be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 337a09576416788b916095739e43a16917e7948f3a4Elliott Hughesvoid Thread::Dump(std::ostream& os) const { 338d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes DumpState(os); 339d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes DumpStack(os); 340d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes} 341d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 342d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughesstd::string GetSchedulerGroup(pid_t tid) { 343d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes // /proc/<pid>/group looks like this: 344d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes // 2:devices:/ 345d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes // 1:cpuacct,cpu:/ 346d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes // We want the third field from the line whose second field contains the "cpu" token. 347d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes std::string cgroup_file; 348d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes if (!ReadFileToString("/proc/self/cgroup", &cgroup_file)) { 349d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes return ""; 350d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 351d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes std::vector<std::string> cgroup_lines; 352d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes Split(cgroup_file, '\n', cgroup_lines); 353d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes for (size_t i = 0; i < cgroup_lines.size(); ++i) { 354d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes std::vector<std::string> cgroup_fields; 355d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes Split(cgroup_lines[i], ':', cgroup_fields); 356d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes std::vector<std::string> cgroups; 357d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes Split(cgroup_fields[1], ',', cgroups); 358d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes for (size_t i = 0; i < cgroups.size(); ++i) { 359d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes if (cgroups[i] == "cpu") { 360d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes return cgroup_fields[2].substr(1); // Skip the leading slash. 361d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 362d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 363d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 364d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes return ""; 365d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes} 366d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 367fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott HughesString* Thread::GetName() const { 368fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes return (peer_ != NULL) ? reinterpret_cast<String*>(gThread_name->GetObject(peer_)) : NULL; 369fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes} 370fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes 371d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughesvoid Thread::DumpState(std::ostream& os) const { 372d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes std::string thread_name("<native thread without managed peer>"); 373d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes std::string group_name; 374d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes int priority; 375d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes bool is_daemon = false; 376d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 377d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes if (peer_ != NULL) { 378038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes String* thread_name_string = reinterpret_cast<String*>(gThread_name->GetObject(peer_)); 379d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes thread_name = (thread_name_string != NULL) ? thread_name_string->ToModifiedUtf8() : "<null>"; 380038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes priority = gThread_priority->GetInt(peer_); 381038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes is_daemon = gThread_daemon->GetBoolean(peer_); 382d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 383038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes Object* thread_group = gThread_group->GetObject(peer_); 384d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes if (thread_group != NULL) { 385038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes String* group_name_string = reinterpret_cast<String*>(gThreadGroup_name->GetObject(thread_group)); 386d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes group_name = (group_name_string != NULL) ? group_name_string->ToModifiedUtf8() : "<null>"; 387d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 388d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } else { 389d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes // This name may be truncated, but it's the best we can do in the absence of a managed peer. 390dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes std::string stats; 391dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes if (ReadFileToString(StringPrintf("/proc/self/task/%d/stat", GetTid()).c_str(), &stats)) { 392dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes size_t start = stats.find('(') + 1; 393dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes size_t end = stats.find(')') - start; 394dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes thread_name = stats.substr(start, end); 395dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes } 396d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes priority = GetNativePriority(); 397dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes } 398d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 399d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int policy; 400d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes sched_param sp; 4013147a2347d4fd775d51ec0a558955332beb9d1feElliott Hughes CHECK_PTHREAD_CALL(pthread_getschedparam, (pthread_self(), &policy, &sp), __FUNCTION__); 402d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 403d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes std::string scheduler_group(GetSchedulerGroup(GetTid())); 404d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes if (scheduler_group.empty()) { 405d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes scheduler_group = "default"; 406d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 407d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 408d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes os << '"' << thread_name << '"'; 409d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes if (is_daemon) { 410d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes os << " daemon"; 411d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 412d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes os << " prio=" << priority 413dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes << " tid=" << GetThinLockId() 41493e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes << " " << GetState() << "\n"; 415d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 416d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int debug_suspend_count = 0; // TODO 417d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes os << " | group=\"" << group_name << "\"" 4188d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes << " sCount=" << suspend_count_ 419d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes << " dsCount=" << debug_suspend_count 420dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes << " obj=" << reinterpret_cast<void*>(peer_) 421d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes << " self=" << reinterpret_cast<const void*>(this) << "\n"; 422d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes os << " | sysTid=" << GetTid() 423d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes << " nice=" << getpriority(PRIO_PROCESS, GetTid()) 424d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes << " sched=" << policy << "/" << sp.sched_priority 425d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes << " cgrp=" << scheduler_group 4263147a2347d4fd775d51ec0a558955332beb9d1feElliott Hughes << " handle=" << pthread_self() << "\n"; 427d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 428d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes // Grab the scheduler stats for this thread. 429d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes std::string scheduler_stats; 430d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes if (ReadFileToString(StringPrintf("/proc/self/task/%d/schedstat", GetTid()).c_str(), &scheduler_stats)) { 431d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes scheduler_stats.resize(scheduler_stats.size() - 1); // Lose the trailing '\n'. 432d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } else { 433d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes scheduler_stats = "0 0 0"; 434d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 435d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 436d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int utime = 0; 437d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int stime = 0; 438d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes int task_cpu = 0; 439d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes std::string stats; 440d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes if (ReadFileToString(StringPrintf("/proc/self/task/%d/stat", GetTid()).c_str(), &stats)) { 441d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes // Skip the command, which may contain spaces. 442d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes stats = stats.substr(stats.find(')') + 2); 443d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes // Extract the three fields we care about. 444d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes std::vector<std::string> fields; 445d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes Split(stats, ' ', fields); 446d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes utime = strtoull(fields[11].c_str(), NULL, 10); 447d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes stime = strtoull(fields[12].c_str(), NULL, 10); 448d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes task_cpu = strtoull(fields[36].c_str(), NULL, 10); 449d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 450d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 451d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes os << " | schedstat=( " << scheduler_stats << " )" 452d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes << " utm=" << utime 453d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes << " stm=" << stime 454d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes << " core=" << task_cpu 455d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes << " HZ=" << sysconf(_SC_CLK_TCK) << "\n"; 456a09576416788b916095739e43a16917e7948f3a4Elliott Hughes} 457a09576416788b916095739e43a16917e7948f3a4Elliott Hughes 458b04f69f90d2594092bec5b294bbe7329d295bd66Ian Rogersvoid Thread::PushNativeToManagedRecord(NativeToManagedRecord* record) { 459b04f69f90d2594092bec5b294bbe7329d295bd66Ian Rogers Method **sp = top_of_managed_stack_.GetSP(); 460b04f69f90d2594092bec5b294bbe7329d295bd66Ian Rogers#ifndef NDEBUG 461b04f69f90d2594092bec5b294bbe7329d295bd66Ian Rogers if (sp != NULL) { 462b04f69f90d2594092bec5b294bbe7329d295bd66Ian Rogers Method* m = *sp; 463b04f69f90d2594092bec5b294bbe7329d295bd66Ian Rogers Heap::VerifyObject(m); 464b04f69f90d2594092bec5b294bbe7329d295bd66Ian Rogers DCHECK((m == NULL) || m->IsMethod()); 465b04f69f90d2594092bec5b294bbe7329d295bd66Ian Rogers } 466b04f69f90d2594092bec5b294bbe7329d295bd66Ian Rogers#endif 467b04f69f90d2594092bec5b294bbe7329d295bd66Ian Rogers record->last_top_of_managed_stack_ = reinterpret_cast<void*>(sp); 468b04f69f90d2594092bec5b294bbe7329d295bd66Ian Rogers record->last_top_of_managed_stack_pc_ = top_of_managed_stack_pc_; 469b04f69f90d2594092bec5b294bbe7329d295bd66Ian Rogers record->link_ = native_to_managed_record_; 470b04f69f90d2594092bec5b294bbe7329d295bd66Ian Rogers native_to_managed_record_ = record; 471b04f69f90d2594092bec5b294bbe7329d295bd66Ian Rogers top_of_managed_stack_.SetSP(NULL); 472b04f69f90d2594092bec5b294bbe7329d295bd66Ian Rogers} 473b04f69f90d2594092bec5b294bbe7329d295bd66Ian Rogers 474b04f69f90d2594092bec5b294bbe7329d295bd66Ian Rogersvoid Thread::PopNativeToManagedRecord(const NativeToManagedRecord& record) { 475b04f69f90d2594092bec5b294bbe7329d295bd66Ian Rogers native_to_managed_record_ = record.link_; 476b04f69f90d2594092bec5b294bbe7329d295bd66Ian Rogers top_of_managed_stack_.SetSP(reinterpret_cast<Method**>(record.last_top_of_managed_stack_)); 477b04f69f90d2594092bec5b294bbe7329d295bd66Ian Rogers top_of_managed_stack_pc_ = record.last_top_of_managed_stack_pc_; 478b04f69f90d2594092bec5b294bbe7329d295bd66Ian Rogers} 479b04f69f90d2594092bec5b294bbe7329d295bd66Ian Rogers 480d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughesstruct StackDumpVisitor : public Thread::StackVisitor { 4818e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes StackDumpVisitor(std::ostream& os, const Thread* thread) 4828e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes : os(os), thread(thread), frame_count(0) { 483d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 484d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 485bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers virtual ~StackDumpVisitor() { 486d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 487d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 488bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers void VisitFrame(const Frame& frame, uintptr_t pc) { 4899086572fa809d1a19d886b467e4da3ce42016982Ian Rogers if (!frame.HasMethod()) { 4909086572fa809d1a19d886b467e4da3ce42016982Ian Rogers return; 4919086572fa809d1a19d886b467e4da3ce42016982Ian Rogers } 492d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 493d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes Method* m = frame.GetMethod(); 494d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes Class* c = m->GetDeclaringClass(); 4958e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 496d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes const DexFile& dex_file = class_linker->FindDexFile(c->GetDexCache()); 497d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 498d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes os << " at " << PrettyMethod(m, false); 499d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes if (m->IsNative()) { 500d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes os << "(Native method)"; 501d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } else { 502bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers int line_number = dex_file.GetLineNumFromPC(m, m->ToDexPC(pc)); 503d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes os << "(" << c->GetSourceFile()->ToModifiedUtf8() << ":" << line_number << ")"; 504d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 505d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes os << "\n"; 5068e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes 5078e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes if (frame_count++ == 0) { 5088e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes Monitor::DescribeWait(os, thread); 5098e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes } 510d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 511d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 512d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes std::ostream& os; 5138e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes const Thread* thread; 5148e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes int frame_count; 515d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes}; 516d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 517d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughesvoid Thread::DumpStack(std::ostream& os) const { 5188e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes StackDumpVisitor dumper(os, this); 519d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes WalkStack(&dumper); 520e27955ca3ca960928d4dbd6cb79711fce06950b3Elliott Hughes} 521e27955ca3ca960928d4dbd6cb79711fce06950b3Elliott Hughes 5228d768a954b101a9532f980253ac46be2c53aba11Elliott HughesThread::State Thread::SetState(Thread::State new_state) { 5238d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes Thread::State old_state = state_; 5248d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes if (old_state == new_state) { 5258d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes return old_state; 5268d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes } 5278d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes 5288d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes volatile void* raw = reinterpret_cast<volatile void*>(&state_); 5298d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes volatile int32_t* addr = reinterpret_cast<volatile int32_t*>(raw); 5308d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes 5318d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes if (new_state == Thread::kRunnable) { 5328d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes /* 5338d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * Change our status to Thread::kRunnable. The transition requires 5348d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * that we check for pending suspension, because the VM considers 5358d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * us to be "asleep" in all other states, and another thread could 5368d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * be performing a GC now. 5378d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * 5388d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * The order of operations is very significant here. One way to 5398d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * do this wrong is: 5408d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * 5418d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * GCing thread Our thread (in kNative) 5428d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * ------------ ---------------------- 5438d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * check suspend count (== 0) 5448d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * SuspendAllThreads() 5458d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * grab suspend-count lock 5468d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * increment all suspend counts 5478d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * release suspend-count lock 5488d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * check thread state (== kNative) 5498d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * all are suspended, begin GC 5508d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * set state to kRunnable 5518d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * (continue executing) 5528d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * 5538d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * We can correct this by grabbing the suspend-count lock and 5548d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * performing both of our operations (check suspend count, set 5558d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * state) while holding it, now we need to grab a mutex on every 5568d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * transition to kRunnable. 5578d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * 5588d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * What we do instead is change the order of operations so that 5598d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * the transition to kRunnable happens first. If we then detect 5608d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * that the suspend count is nonzero, we switch to kSuspended. 5618d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * 5628d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * Appropriate compiler and memory barriers are required to ensure 5638d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * that the operations are observed in the expected order. 5648d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * 5658d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * This does create a small window of opportunity where a GC in 5668d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * progress could observe what appears to be a running thread (if 5678d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * it happens to look between when we set to kRunnable and when we 5688d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * switch to kSuspended). At worst this only affects assertions 5698d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * and thread logging. (We could work around it with some sort 5708d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * of intermediate "pre-running" state that is generally treated 5718d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * as equivalent to running, but that doesn't seem worthwhile.) 5728d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * 5738d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * We can also solve this by combining the "status" and "suspend 5748d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * count" fields into a single 32-bit value. This trades the 5758d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * store/load barrier on transition to kRunnable for an atomic RMW 5768d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * op on all transitions and all suspend count updates (also, all 5778d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * accesses to status or the thread count require bit-fiddling). 5788d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * It also eliminates the brief transition through kRunnable when 5798d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * the thread is supposed to be suspended. This is possibly faster 5808d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * on SMP and slightly more correct, but less convenient. 5818d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes */ 5828d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes android_atomic_acquire_store(new_state, addr); 5838d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes if (ANNOTATE_UNPROTECTED_READ(suspend_count_) != 0) { 5848d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes Runtime::Current()->GetThreadList()->FullSuspendCheck(this); 5858d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes } 5868d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes } else { 5878d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes /* 5888d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * Not changing to Thread::kRunnable. No additional work required. 5898d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * 5908d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * We use a releasing store to ensure that, if we were runnable, 5918d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * any updates we previously made to objects on the managed heap 5928d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * will be observed before the state change. 5938d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes */ 5948d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes android_atomic_release_store(new_state, addr); 5958d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes } 5968d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes 5978d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes return old_state; 5988d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes} 5998d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes 6008d768a954b101a9532f980253ac46be2c53aba11Elliott Hughesvoid Thread::WaitUntilSuspended() { 6018d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes // TODO: dalvik dropped the waiting thread's priority after a while. 6028d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes // TODO: dalvik timed out and aborted. 6038d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes useconds_t delay = 0; 6048d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes while (GetState() == Thread::kRunnable) { 6058d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes useconds_t new_delay = delay * 2; 6068d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes CHECK_GE(new_delay, delay); 6078d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes delay = new_delay; 6088d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes if (delay == 0) { 6098d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes sched_yield(); 6108d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes delay = 10000; 6118d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes } else { 6128d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes usleep(delay); 6138d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes } 6148d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes } 6158d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes} 6168d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes 617be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughesvoid Thread::ThreadExitCallback(void* arg) { 618be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes Thread* self = reinterpret_cast<Thread*>(arg); 619be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes LOG(FATAL) << "Native thread exited without calling DetachCurrentThread: " << *self; 620b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro} 621b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 622be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughesvoid Thread::Startup() { 623b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro // Allocate a TLS slot. 6248d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes CHECK_PTHREAD_CALL(pthread_key_create, (&Thread::pthread_key_self_, Thread::ThreadExitCallback), "self key"); 625b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 626b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro // Double-check the TLS slot allocation. 627b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro if (pthread_getspecific(pthread_key_self_) != NULL) { 628be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes LOG(FATAL) << "newly-created pthread TLS slot is not NULL"; 629b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro } 630038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes} 631038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes 6328e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes// TODO: make more accessible? 6338e4aac52962d54cb4be2078b9cd95685e067133aElliott HughesClass* FindPrimitiveClassOrDie(ClassLinker* class_linker, char descriptor) { 6348e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes Class* c = class_linker->FindPrimitiveClass(descriptor); 6358e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes CHECK(c != NULL) << descriptor; 6368e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes return c; 6378e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes} 6388e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes 6398e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes// TODO: make more accessible? 6408e4aac52962d54cb4be2078b9cd95685e067133aElliott HughesClass* FindClassOrDie(ClassLinker* class_linker, const char* descriptor) { 6418e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes Class* c = class_linker->FindSystemClass(descriptor); 6428e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes CHECK(c != NULL) << descriptor; 6438e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes return c; 6448e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes} 6458e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes 6468e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes// TODO: make more accessible? 6478e4aac52962d54cb4be2078b9cd95685e067133aElliott HughesField* FindFieldOrDie(Class* c, const char* name, Class* type) { 6488e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes Field* f = c->FindDeclaredInstanceField(name, type); 6498e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes CHECK(f != NULL) << PrettyClass(c) << " " << name << " " << PrettyClass(type); 6508e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes return f; 6518e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes} 6528e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes 6538e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes// TODO: make more accessible? 6548e4aac52962d54cb4be2078b9cd95685e067133aElliott HughesMethod* FindMethodOrDie(Class* c, const char* name, const char* signature) { 6558e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes Method* m = c->FindVirtualMethod(name, signature); 6568e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes CHECK(m != NULL) << PrettyClass(c) << " " << name << " " << signature; 6578e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes return m; 6588e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes} 6598e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes 660038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughesvoid Thread::FinishStartup() { 661038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes // Now the ClassLinker is ready, we can find the various Class*, Field*, and Method*s we need. 662038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 6638e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes 6648e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes Class* boolean_class = FindPrimitiveClassOrDie(class_linker, 'Z'); 6658e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes Class* int_class = FindPrimitiveClassOrDie(class_linker, 'I'); 666df143242f4beaad4cc9fbabebfc033b68c40964eBrian Carlstrom Class* ClassLoader_class = FindClassOrDie(class_linker, "Ljava/lang/ClassLoader;"); 6678e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes Class* String_class = FindClassOrDie(class_linker, "Ljava/lang/String;"); 6688e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes Class* Thread_class = FindClassOrDie(class_linker, "Ljava/lang/Thread;"); 6698e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes Class* ThreadGroup_class = FindClassOrDie(class_linker, "Ljava/lang/ThreadGroup;"); 6708e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes Class* UncaughtExceptionHandler_class = FindClassOrDie(class_linker, "Ljava/lang/Thread$UncaughtExceptionHandler;"); 6718e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes gThreadLock = FindClassOrDie(class_linker, "Ljava/lang/ThreadLock;"); 6728e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes gThrowable = FindClassOrDie(class_linker, "Ljava/lang/Throwable;"); 6738e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes 6748e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes gThread_daemon = FindFieldOrDie(Thread_class, "daemon", boolean_class); 6758e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes gThread_group = FindFieldOrDie(Thread_class, "group", ThreadGroup_class); 6768e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes gThread_lock = FindFieldOrDie(Thread_class, "lock", gThreadLock); 6778e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes gThread_name = FindFieldOrDie(Thread_class, "name", String_class); 6788e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes gThread_priority = FindFieldOrDie(Thread_class, "priority", int_class); 6798e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes gThread_uncaughtHandler = FindFieldOrDie(Thread_class, "uncaughtHandler", UncaughtExceptionHandler_class); 6808e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes gThread_vmData = FindFieldOrDie(Thread_class, "vmData", int_class); 6818e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes gThreadGroup_name = FindFieldOrDie(ThreadGroup_class, "name", String_class); 6828e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes gThreadLock_thread = FindFieldOrDie(gThreadLock, "thread", Thread_class); 6838e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes 6848e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes gThread_run = FindMethodOrDie(Thread_class, "run", "()V"); 6858e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes gThreadGroup_removeThread = FindMethodOrDie(ThreadGroup_class, "removeThread", "(Ljava/lang/Thread;)V"); 6868e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes gUncaughtExceptionHandler_uncaughtException = FindMethodOrDie(UncaughtExceptionHandler_class, 6878e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes "uncaughtException", "(Ljava/lang/Thread;Ljava/lang/Throwable;)V"); 68801158d7a57c8321370667a6045220237d16e0da8Elliott Hughes 68901158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Finish attaching the main thread. 690df143242f4beaad4cc9fbabebfc033b68c40964eBrian Carlstrom Thread* self = Thread::Current(); 691df143242f4beaad4cc9fbabebfc033b68c40964eBrian Carlstrom self->CreatePeer("main", false); 692df143242f4beaad4cc9fbabebfc033b68c40964eBrian Carlstrom 693df143242f4beaad4cc9fbabebfc033b68c40964eBrian Carlstrom const Field* Thread_contextClassLoader = FindFieldOrDie(Thread_class , "contextClassLoader", ClassLoader_class); 694df143242f4beaad4cc9fbabebfc033b68c40964eBrian Carlstrom Thread_contextClassLoader->SetObject(self->GetPeer(), self->GetClassLoaderOverride()); 695b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro} 696b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 697c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughesvoid Thread::Shutdown() { 6988d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes CHECK_PTHREAD_CALL(pthread_key_delete, (Thread::pthread_key_self_), "self key"); 699c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes} 700c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes 7018e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughesuint32_t Thread::LockOwnerFromThreadLock(Object* thread_lock) { 7028e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes if (thread_lock == NULL || thread_lock->GetClass() != gThreadLock) { 7038e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes return ThreadList::kInvalidId; 7048e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes } 7058e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes Object* managed_thread = gThreadLock_thread->GetObject(thread_lock); 7068e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes if (managed_thread == NULL) { 7078e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes return ThreadList::kInvalidId; 7088e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes } 7098e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes uintptr_t vmData = static_cast<uintptr_t>(gThread_vmData->GetInt(managed_thread)); 7108e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes Thread* thread = reinterpret_cast<Thread*>(vmData); 7118e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes if (thread == NULL) { 7128e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes return ThreadList::kInvalidId; 7138e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes } 7148e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes return thread->GetThinLockId(); 7158e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes} 7168e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes 717dcc247493fd8fb243e335c3ec08e5e625896a47cElliott HughesThread::Thread() 71802b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes : peer_(NULL), 7198e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes top_of_managed_stack_(), 7208e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes top_of_managed_stack_pc_(0), 72185d1545e985ac689db4bad7849880e843707c862Elliott Hughes wait_mutex_(new Mutex("Thread wait mutex")), 72285d1545e985ac689db4bad7849880e843707c862Elliott Hughes wait_cond_(new ConditionVariable("Thread wait condition variable")), 7238daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes wait_monitor_(NULL), 7248daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes interrupted_(false), 725dc33ad5db2dc6ed9b76d5219888626a604debbe1Elliott Hughes wait_next_(NULL), 7268e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes monitor_enter_object_(NULL), 727dc33ad5db2dc6ed9b76d5219888626a604debbe1Elliott Hughes card_table_(0), 7288daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes stack_end_(NULL), 729dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes native_to_managed_record_(NULL), 730dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes top_sirt_(NULL), 731dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes jni_env_(NULL), 7328e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes state_(Thread::kNative), 733dc33ad5db2dc6ed9b76d5219888626a604debbe1Elliott Hughes self_(NULL), 734dc33ad5db2dc6ed9b76d5219888626a604debbe1Elliott Hughes runtime_(NULL), 735dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes exception_(NULL), 736dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes suspend_count_(0), 73785d1545e985ac689db4bad7849880e843707c862Elliott Hughes class_loader_override_(NULL), 738418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes long_jump_context_(NULL), 739726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes throwing_OutOfMemoryError_(false), 740726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes pre_allocated_OutOfMemoryError_(NULL) { 741f5a7a476e7ea63e094ff0f011dccc170607e6f6bElliott Hughes CHECK_EQ((sizeof(Thread) % 4), 0U) << sizeof(Thread); 742dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes} 743dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes 74402b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughesvoid MonitorExitVisitor(const Object* object, void*) { 74502b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes Object* entered_monitor = const_cast<Object*>(object); 7465f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes entered_monitor->MonitorExit(Thread::Current()); 74702b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes} 74802b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 749c1674ed06662420213441ff2b818f2f71f9098dcElliott HughesThread::~Thread() { 7507a3aeb4d7580164c6a6905c63b96823b77ff5a64Elliott Hughes SetState(Thread::kRunnable); 7517a3aeb4d7580164c6a6905c63b96823b77ff5a64Elliott Hughes 75202b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes // On thread detach, all monitors entered with JNI MonitorEnter are automatically exited. 75393e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes if (jni_env_ != NULL) { 75493e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes jni_env_->monitors.VisitRoots(MonitorExitVisitor, NULL); 75593e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes } 75602b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 75729f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes if (peer_ != NULL) { 75829f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes // this.group.removeThread(this); 759081be7fcd72490937e188e9ef56e72df06b7b006Elliott Hughes // group can be null if we're in the compiler or a test. 760accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes Object* group = gThread_group->GetObject(peer_); 761081be7fcd72490937e188e9ef56e72df06b7b006Elliott Hughes if (group != NULL) { 762081be7fcd72490937e188e9ef56e72df06b7b006Elliott Hughes Method* m = group->GetClass()->FindVirtualMethodForVirtualOrInterface(gThreadGroup_removeThread); 763081be7fcd72490937e188e9ef56e72df06b7b006Elliott Hughes Object* args = peer_; 764081be7fcd72490937e188e9ef56e72df06b7b006Elliott Hughes m->Invoke(this, group, reinterpret_cast<byte*>(&args), NULL); 765081be7fcd72490937e188e9ef56e72df06b7b006Elliott Hughes } 76629f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes 76729f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes // this.vmData = 0; 76893e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes SetVmData(peer_, NULL); 76902b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 77029f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes // TODO: say "bye" to the debugger. 77129f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes //if (gDvm.debuggerConnected) { 77229f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes // dvmDbgPostThreadDeath(self); 77329f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes //} 77402b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 77529f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes // Thread.join() is implemented as an Object.wait() on the Thread.lock 77629f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes // object. Signal anyone who is waiting. 7775f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes Thread* self = Thread::Current(); 778038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes Object* lock = gThread_lock->GetObject(peer_); 779038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes // (This conditional is only needed for tests, where Thread.lock won't have been set.) 7805f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes if (lock != NULL) { 7815f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes lock->MonitorEnter(self); 7825f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes lock->NotifyAll(); 7835f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes lock->MonitorExit(self); 7845f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 7855f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 78602b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 787c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes delete jni_env_; 78802b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes jni_env_ = NULL; 78902b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes 79002b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes SetState(Thread::kTerminated); 79185d1545e985ac689db4bad7849880e843707c862Elliott Hughes 79285d1545e985ac689db4bad7849880e843707c862Elliott Hughes delete wait_cond_; 79385d1545e985ac689db4bad7849880e843707c862Elliott Hughes delete wait_mutex_; 79485d1545e985ac689db4bad7849880e843707c862Elliott Hughes 79585d1545e985ac689db4bad7849880e843707c862Elliott Hughes delete long_jump_context_; 796c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes} 797c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes 798accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughesvoid Thread::HandleUncaughtExceptions() { 799accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes if (!IsExceptionPending()) { 800accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes return; 801accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes } 802accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 803accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes ScopedThreadStateChange tsc(this, Thread::kRunnable); 804accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 805accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Get and clear the exception. 806accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes Object* exception = GetException(); 807accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes ClearException(); 808accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 809accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // If the thread has its own handler, use that. 810accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes Object* handler = gThread_uncaughtHandler->GetObject(peer_); 811accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes if (handler == NULL) { 812accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Otherwise use the thread group's default handler. 813accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes handler = gThread_group->GetObject(peer_); 814accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes } 815accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 816accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Call the handler. 817accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes Method* m = handler->GetClass()->FindVirtualMethodForVirtualOrInterface(gUncaughtExceptionHandler_uncaughtException); 818accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes Object* args[2]; 819accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes args[0] = peer_; 820accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes args[1] = exception; 821accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes m->Invoke(this, handler, reinterpret_cast<byte*>(&args), NULL); 822accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 823accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // If the handler threw, clear that exception too. 824accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes ClearException(); 825accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes} 826accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 827408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogerssize_t Thread::NumSirtReferences() { 828a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers size_t count = 0; 82940381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom for (StackIndirectReferenceTable* cur = top_sirt_; cur; cur = cur->GetLink()) { 830a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers count += cur->NumberOfReferences(); 831a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers } 832a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers return count; 833a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers} 834a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers 835408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogersbool Thread::SirtContains(jobject obj) { 836408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers Object** sirt_entry = reinterpret_cast<Object**>(obj); 83740381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom for (StackIndirectReferenceTable* cur = top_sirt_; cur; cur = cur->GetLink()) { 83840381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom if (cur->Contains(sirt_entry)) { 839a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers return true; 840a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers } 841a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers } 842a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers return false; 843a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers} 844a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers 8458dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liaovoid Thread::SirtVisitRoots(Heap::RootVisitor* visitor, void* arg) { 84640381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom for (StackIndirectReferenceTable* cur = top_sirt_; cur; cur = cur->GetLink()) { 8478dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao size_t num_refs = cur->NumberOfReferences(); 8488dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao for (size_t j = 0; j < num_refs; j++) { 84940381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom Object* object = cur->GetReference(j); 8505e73f9c8990819054f8e0a60061ee8beff1e024aBrian Carlstrom if (object != NULL) { 8515e73f9c8990819054f8e0a60061ee8beff1e024aBrian Carlstrom visitor(object, arg); 8525e73f9c8990819054f8e0a60061ee8beff1e024aBrian Carlstrom } 8538dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao } 8548dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao } 8558dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao} 8568dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao 857408f79aeb676251ba35667a64e86c20638d7cb0bIan RogersObject* Thread::DecodeJObject(jobject obj) { 8580cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers DCHECK(CanAccessDirectReferences()); 859408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers if (obj == NULL) { 860408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers return NULL; 861408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 862408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers IndirectRef ref = reinterpret_cast<IndirectRef>(obj); 863408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers IndirectRefKind kind = GetIndirectRefKind(ref); 864408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers Object* result; 865408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers switch (kind) { 866408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers case kLocal: 867408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers { 86869f5bc6759f256a146eefd8a7141d39fcc3b0421Elliott Hughes IndirectReferenceTable& locals = jni_env_->locals; 869cf4c6c41b0084dc4567ff709fb8ce9ebd72b26acElliott Hughes result = const_cast<Object*>(locals.Get(ref)); 870408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers break; 871408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 872408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers case kGlobal: 873408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers { 874408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers JavaVMExt* vm = Runtime::Current()->GetJavaVM(); 875408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers IndirectReferenceTable& globals = vm->globals; 876408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers MutexLock mu(vm->globals_lock); 877cf4c6c41b0084dc4567ff709fb8ce9ebd72b26acElliott Hughes result = const_cast<Object*>(globals.Get(ref)); 878408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers break; 879408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 880408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers case kWeakGlobal: 881408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers { 882408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers JavaVMExt* vm = Runtime::Current()->GetJavaVM(); 883408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers IndirectReferenceTable& weak_globals = vm->weak_globals; 884408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers MutexLock mu(vm->weak_globals_lock); 885cf4c6c41b0084dc4567ff709fb8ce9ebd72b26acElliott Hughes result = const_cast<Object*>(weak_globals.Get(ref)); 886408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers if (result == kClearedJniWeakGlobal) { 887408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // This is a special case where it's okay to return NULL. 888408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers return NULL; 889408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 890408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers break; 891408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 892408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers case kSirtOrInvalid: 893408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers default: 894408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // TODO: make stack indirect reference table lookup more efficient 895408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Check if this is a local reference in the SIRT 896408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers if (SirtContains(obj)) { 8970cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers result = *reinterpret_cast<Object**>(obj); // Read from SIRT 898c5bfa8f49d8548d7c685a99b411311ef56bedffaElliott Hughes } else if (jni_env_->work_around_app_jni_bugs) { 899408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Assume an invalid local reference is actually a direct pointer. 900408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers result = reinterpret_cast<Object*>(obj); 901408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } else { 902a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes result = kInvalidIndirectRefObject; 903408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 904408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 905408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers 906408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers if (result == NULL) { 907a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes LOG(ERROR) << "JNI ERROR (app bug): use of deleted " << kind << ": " << obj; 908a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes JniAbort(NULL); 909a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes } else { 910a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes if (result != kInvalidIndirectRefObject) { 911a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes Heap::VerifyObject(result); 912a2501990dd0f68baf38ce19251949d7bb3ecfe5aElliott Hughes } 913408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers } 914408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers return result; 915408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers} 916408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers 9179b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liaoclass CountStackDepthVisitor : public Thread::StackVisitor { 9189b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao public: 91929f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes CountStackDepthVisitor() : depth_(0), skip_depth_(0), skipping_(true) {} 920d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes 92129f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes virtual void VisitFrame(const Frame& frame, uintptr_t pc) { 92229f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes // We want to skip frames up to and including the exception's constructor. 9239086572fa809d1a19d886b467e4da3ce42016982Ian Rogers // Note we also skip the frame if it doesn't have a method (namely the callee 9249086572fa809d1a19d886b467e4da3ce42016982Ian Rogers // save frame) 92525c3325bf95036bf325fc7cb21b4fd6d40282857Brian Carlstrom DCHECK(gThrowable != NULL); 9269086572fa809d1a19d886b467e4da3ce42016982Ian Rogers if (skipping_ && frame.HasMethod() && !gThrowable->IsAssignableFrom(frame.GetMethod()->GetDeclaringClass())) { 92729f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes skipping_ = false; 92829f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 92929f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes if (!skipping_) { 93029f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes ++depth_; 93129f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } else { 93229f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes ++skip_depth_; 93329f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 9349b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 9359b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 9369b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao int GetDepth() const { 937aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers return depth_; 9389b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 9399b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 94029f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes int GetSkipDepth() const { 94129f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes return skip_depth_; 94229f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 94329f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes 9449b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao private: 945aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers uint32_t depth_; 94629f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes uint32_t skip_depth_; 94729f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes bool skipping_; 9489b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao}; 9499b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 950aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogersclass BuildInternalStackTraceVisitor : public Thread::StackVisitor { 9519b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao public: 95229f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes explicit BuildInternalStackTraceVisitor(int depth, int skip_depth, ScopedJniThreadState& ts) 953726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes : skip_depth_(skip_depth), count_(0), pc_trace_(NULL), method_trace_(NULL), local_ref_(NULL) { 954aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Allocate method trace with an extra slot that will hold the PC trace 95501158d7a57c8321370667a6045220237d16e0da8Elliott Hughes method_trace_ = Runtime::Current()->GetClassLinker()->AllocObjectArray<Object>(depth + 1); 956726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes if (method_trace_ == NULL) { 957726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes return; 958726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes } 959aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Register a local reference as IntArray::Alloc may trigger GC 960aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers local_ref_ = AddLocalReference<jobject>(ts.Env(), method_trace_); 961aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers pc_trace_ = IntArray::Alloc(depth); 962726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes if (pc_trace_ == NULL) { 963726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes return; 964726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes } 965aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers#ifdef MOVING_GARBAGE_COLLECTOR 966aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Re-read after potential GC 967aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers method_trace = Decode<ObjectArray<Object>*>(ts.Env(), local_ref_); 968aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers#endif 969aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Save PC trace in last element of method trace, also places it into the 970aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // object graph. 971aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers method_trace_->Set(depth, pc_trace_); 9729b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 9739b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 974aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers virtual ~BuildInternalStackTraceVisitor() {} 9759b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 976bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers virtual void VisitFrame(const Frame& frame, uintptr_t pc) { 977726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes if (method_trace_ == NULL || pc_trace_ == NULL) { 978726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes return; // We're probably trying to fillInStackTrace for an OutOfMemoryError. 979726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes } 98029f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes if (skip_depth_ > 0) { 98129f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes skip_depth_--; 98229f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes return; 98329f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes } 984aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers method_trace_->Set(count_, frame.GetMethod()); 985bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers pc_trace_->Set(count_, pc); 986aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers ++count_; 9879b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 9889b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 989aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers jobject GetInternalStackTrace() const { 990aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers return local_ref_; 9919b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 9929b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 9939b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao private: 99429f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes // How many more frames to skip. 99529f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes int32_t skip_depth_; 996aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Current position down stack trace 997aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers uint32_t count_; 998aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Array of return PC values 999aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers IntArray* pc_trace_; 1000aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // An array of the methods on the stack, the last entry is a reference to the 1001aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // PC trace 1002aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers ObjectArray<Object>* method_trace_; 1003aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Local indirect reference table entry for method trace 1004aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers jobject local_ref_; 10059b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao}; 10069b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 1007a43cb5e8fb29989dbb986b9b91a68cda150aa3c8Elliott Hughes// TODO: remove this. 1008a43cb5e8fb29989dbb986b9b91a68cda150aa3c8Elliott Hughesuintptr_t ManglePc(uintptr_t pc) { 1009a43cb5e8fb29989dbb986b9b91a68cda150aa3c8Elliott Hughes // Move the PC back 2 bytes as a call will frequently terminate the 1010a43cb5e8fb29989dbb986b9b91a68cda150aa3c8Elliott Hughes // decoding of a particular instruction and we want to make sure we 1011a43cb5e8fb29989dbb986b9b91a68cda150aa3c8Elliott Hughes // get the Dex PC of the instruction with the call and not the 1012a43cb5e8fb29989dbb986b9b91a68cda150aa3c8Elliott Hughes // instruction following. 1013a43cb5e8fb29989dbb986b9b91a68cda150aa3c8Elliott Hughes if (pc > 0) { pc -= 2; } 1014a43cb5e8fb29989dbb986b9b91a68cda150aa3c8Elliott Hughes return pc; 1015a43cb5e8fb29989dbb986b9b91a68cda150aa3c8Elliott Hughes} 1016a43cb5e8fb29989dbb986b9b91a68cda150aa3c8Elliott Hughes 1017a43cb5e8fb29989dbb986b9b91a68cda150aa3c8Elliott Hughes// TODO: remove this. 1018a43cb5e8fb29989dbb986b9b91a68cda150aa3c8Elliott Hughesuintptr_t DemanglePc(uintptr_t pc) { 1019a43cb5e8fb29989dbb986b9b91a68cda150aa3c8Elliott Hughes // Revert mangling for the case where we need the PC to return to the upcall 1020a43cb5e8fb29989dbb986b9b91a68cda150aa3c8Elliott Hughes return pc + 2; 1021a43cb5e8fb29989dbb986b9b91a68cda150aa3c8Elliott Hughes} 1022f57c47c29cd3388d1d78008a71c4e18f2217b70cIan Rogers 102340381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstromvoid Thread::PushSirt(StackIndirectReferenceTable* sirt) { 102440381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom sirt->SetLink(top_sirt_); 102540381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom top_sirt_ = sirt; 102640381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom} 102740381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom 102840381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian CarlstromStackIndirectReferenceTable* Thread::PopSirt() { 102940381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom CHECK(top_sirt_ != NULL); 103040381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom StackIndirectReferenceTable* sirt = top_sirt_; 103140381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom top_sirt_ = top_sirt_->GetLink(); 103240381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom return sirt; 103340381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom} 103440381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom 1035aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogersvoid Thread::WalkStack(StackVisitor* visitor) const { 1036d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes Frame frame = GetTopOfStack(); 1037a43cb5e8fb29989dbb986b9b91a68cda150aa3c8Elliott Hughes uintptr_t pc = ManglePc(top_of_managed_stack_pc_); 10389b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao // TODO: enable this CHECK after native_to_managed_record_ is initialized during startup. 10399b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao // CHECK(native_to_managed_record_ != NULL); 10409b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao NativeToManagedRecord* record = native_to_managed_record_; 10414417536522fd2a9d8215d8672331984769c9520bShih-wei Liao 1042bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers while (frame.GetSP() != 0) { 10439b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao for ( ; frame.GetMethod() != 0; frame.Next()) { 10443320cf46afd082398aa401b246e6f301cebdf64dBrian Carlstrom // DCHECK(frame.GetMethod()->IsWithinCode(pc)); // TODO: restore IsWithinCode 10453ddac99d4dc6a036fac59d8f0bdc664ef619fb04Shih-wei Liao visitor->VisitFrame(frame, pc); 1046a43cb5e8fb29989dbb986b9b91a68cda150aa3c8Elliott Hughes pc = ManglePc(frame.GetReturnPC()); 10479b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 10489b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao if (record == NULL) { 10499b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao break; 10509b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao } 1051bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers // last_tos should return Frame instead of sp? 1052ff1ed4770bf7ff024a807b9f909b1a26abb78341Ian Rogers frame.SetSP(reinterpret_cast<Method**>(record->last_top_of_managed_stack_)); 1053a43cb5e8fb29989dbb986b9b91a68cda150aa3c8Elliott Hughes pc = ManglePc(record->last_top_of_managed_stack_pc_); 1054bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers record = record->link_; 1055bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers } 1056bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers} 1057bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 105867375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogersvoid Thread::WalkStackUntilUpCall(StackVisitor* visitor, bool include_upcall) const { 1059bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers Frame frame = GetTopOfStack(); 1060a43cb5e8fb29989dbb986b9b91a68cda150aa3c8Elliott Hughes uintptr_t pc = ManglePc(top_of_managed_stack_pc_); 1061bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 1062bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers if (frame.GetSP() != 0) { 1063bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers for ( ; frame.GetMethod() != 0; frame.Next()) { 10643320cf46afd082398aa401b246e6f301cebdf64dBrian Carlstrom // DCHECK(frame.GetMethod()->IsWithinCode(pc)); // TODO: restore IsWithinCode 10653ddac99d4dc6a036fac59d8f0bdc664ef619fb04Shih-wei Liao visitor->VisitFrame(frame, pc); 1066a43cb5e8fb29989dbb986b9b91a68cda150aa3c8Elliott Hughes pc = ManglePc(frame.GetReturnPC()); 1067bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers } 106867375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers if (include_upcall) { 106967375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers visitor->VisitFrame(frame, pc); 107067375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers } 107155df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao } 107255df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao} 107355df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao 107401158d7a57c8321370667a6045220237d16e0da8Elliott Hughesjobject Thread::CreateInternalStackTrace(JNIEnv* env) const { 1075aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Compute depth of stack 10769b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao CountStackDepthVisitor count_visitor; 10779b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao WalkStack(&count_visitor); 10789b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao int32_t depth = count_visitor.GetDepth(); 107929f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes int32_t skip_depth = count_visitor.GetSkipDepth(); 10804417536522fd2a9d8215d8672331984769c9520bShih-wei Liao 1081aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Transition into runnable state to work on Object*/Array* 108201158d7a57c8321370667a6045220237d16e0da8Elliott Hughes ScopedJniThreadState ts(env); 1083aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 1084aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Build internal stack trace 108529f2742a478e4f5bd2ec7473410c5e5e7134a6f2Elliott Hughes BuildInternalStackTraceVisitor build_trace_visitor(depth, skip_depth, ts); 10869b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao WalkStack(&build_trace_visitor); 10874417536522fd2a9d8215d8672331984769c9520bShih-wei Liao 1088aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers return build_trace_visitor.GetInternalStackTrace(); 1089aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers} 1090aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 109101158d7a57c8321370667a6045220237d16e0da8Elliott HughesjobjectArray Thread::InternalStackTraceToStackTraceElementArray(JNIEnv* env, jobject internal, 109201158d7a57c8321370667a6045220237d16e0da8Elliott Hughes jobjectArray output_array, int* stack_depth) { 1093aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Transition into runnable state to work on Object*/Array* 1094aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers ScopedJniThreadState ts(env); 1095aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 1096aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Decode the internal stack trace into the depth, method trace and PC trace 1097aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers ObjectArray<Object>* method_trace = 1098aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers down_cast<ObjectArray<Object>*>(Decode<Object*>(ts.Env(), internal)); 1099aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers int32_t depth = method_trace->GetLength()-1; 1100aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers IntArray* pc_trace = down_cast<IntArray*>(method_trace->Get(depth)); 1101aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 1102aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 1103aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers 110401158d7a57c8321370667a6045220237d16e0da8Elliott Hughes jobjectArray result; 110501158d7a57c8321370667a6045220237d16e0da8Elliott Hughes ObjectArray<StackTraceElement>* java_traces; 110601158d7a57c8321370667a6045220237d16e0da8Elliott Hughes if (output_array != NULL) { 110701158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Reuse the array we were given. 110801158d7a57c8321370667a6045220237d16e0da8Elliott Hughes result = output_array; 110901158d7a57c8321370667a6045220237d16e0da8Elliott Hughes java_traces = reinterpret_cast<ObjectArray<StackTraceElement>*>(Decode<Array*>(env, 111001158d7a57c8321370667a6045220237d16e0da8Elliott Hughes output_array)); 111101158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // ...adjusting the number of frames we'll write to not exceed the array length. 111201158d7a57c8321370667a6045220237d16e0da8Elliott Hughes depth = std::min(depth, java_traces->GetLength()); 111301158d7a57c8321370667a6045220237d16e0da8Elliott Hughes } else { 111401158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Create java_trace array and place in local reference table 111501158d7a57c8321370667a6045220237d16e0da8Elliott Hughes java_traces = class_linker->AllocStackTraceElementArray(depth); 111630646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes if (java_traces == NULL) { 111730646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes return NULL; 111830646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 111901158d7a57c8321370667a6045220237d16e0da8Elliott Hughes result = AddLocalReference<jobjectArray>(ts.Env(), java_traces); 112001158d7a57c8321370667a6045220237d16e0da8Elliott Hughes } 112101158d7a57c8321370667a6045220237d16e0da8Elliott Hughes 112201158d7a57c8321370667a6045220237d16e0da8Elliott Hughes if (stack_depth != NULL) { 112301158d7a57c8321370667a6045220237d16e0da8Elliott Hughes *stack_depth = depth; 112401158d7a57c8321370667a6045220237d16e0da8Elliott Hughes } 112555df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao 11269b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao for (int32_t i = 0; i < depth; ++i) { 1127aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Prepare parameters for StackTraceElement(String cls, String method, String file, int line) 1128aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers Method* method = down_cast<Method*>(method_trace->Get(i)); 1129aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers uint32_t native_pc = pc_trace->Get(i); 1130aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers Class* klass = method->GetDeclaringClass(); 113138933579b15c74baa09b8713ee8bf715529d05ebElliott Hughes std::string class_name(PrettyDescriptor(klass->GetDescriptor())); 1132466bb25416b88fabd5d4387b7c7e5cc1ece78b8cIan Rogers int32_t line_number = -1; 1133466bb25416b88fabd5d4387b7c7e5cc1ece78b8cIan Rogers DexCache* dex_cache = klass->GetDexCache(); 1134466bb25416b88fabd5d4387b7c7e5cc1ece78b8cIan Rogers if (dex_cache != NULL) { 1135466bb25416b88fabd5d4387b7c7e5cc1ece78b8cIan Rogers const DexFile& dex_file = class_linker->FindDexFile(dex_cache); 1136466bb25416b88fabd5d4387b7c7e5cc1ece78b8cIan Rogers line_number = dex_file.GetLineNumFromPC(method, method->ToDexPC(native_pc)); 1137466bb25416b88fabd5d4387b7c7e5cc1ece78b8cIan Rogers } 1138aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Allocate element, potentially triggering GC 113940381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom // TODO: reuse class_name_object via Class::name_? 114040381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom SirtRef<String> class_name_object(String::AllocFromModifiedUtf8(class_name.c_str())); 114140381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom if (class_name_object.get() == NULL) { 114240381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom return NULL; 114340381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom } 114440381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom StackTraceElement* obj = StackTraceElement::Alloc(class_name_object.get(), 114540381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom method->GetName(), 114640381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom klass->GetSourceFile(), 114740381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom line_number); 114830646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes if (obj == NULL) { 114930646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes return NULL; 115030646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 1151aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers#ifdef MOVING_GARBAGE_COLLECTOR 1152aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Re-read after potential GC 1153aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers java_traces = Decode<ObjectArray<Object>*>(ts.Env(), result); 1154aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers method_trace = down_cast<ObjectArray<Object>*>(Decode<Object*>(ts.Env(), internal)); 1155aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers pc_trace = down_cast<IntArray*>(method_trace->Get(depth)); 1156aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers#endif 115755df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao java_traces->Set(i, obj); 115855df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao } 1159aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers return result; 116055df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao} 116155df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao 1162fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughesvoid Thread::GetCurrentLocation(const char*& source_file, uint32_t& line_number) const { 1163fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes Frame f = top_of_managed_stack_; 1164fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes Method* m = f.GetMethod(); 1165fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes // TODO: can this ever happen? 1166fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes if (m->IsCalleeSaveMethod()) { 1167fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes f.Next(); 1168fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes m = f.GetMethod(); 1169fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes } 1170fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes 1171fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 1172fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes Class* c = m->GetDeclaringClass(); 1173fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes DexCache* dex_cache = c->GetDexCache(); 1174fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes const DexFile& dex_file = class_linker->FindDexFile(dex_cache); 1175fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes const DexFile::ClassDef* class_def = dex_file.FindClassDef(c->GetDescriptor()->ToModifiedUtf8()); 1176fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes 1177fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes source_file = dex_file.dexGetSourceFile(*class_def); 1178fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes 1179fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes uint32_t pc = ManglePc(f.GetReturnPC()); 1180fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes line_number = dex_file.GetLineNumFromPC(m, m->ToDexPC(pc)); 1181fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes} 1182fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes 11835cb5ad27944efb08d4556b3c0d362302e37e832bElliott Hughesvoid Thread::ThrowNewExceptionF(const char* exception_class_descriptor, const char* fmt, ...) { 1184a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes va_list args; 1185a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes va_start(args, fmt); 11864a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes ThrowNewExceptionV(exception_class_descriptor, fmt, args); 1187a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes va_end(args); 11884a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes} 11894a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes 11904a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughesvoid Thread::ThrowNewExceptionV(const char* exception_class_descriptor, const char* fmt, va_list ap) { 11914a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes std::string msg; 11924a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes StringAppendV(&msg, fmt, ap); 11935cb5ad27944efb08d4556b3c0d362302e37e832bElliott Hughes ThrowNewException(exception_class_descriptor, msg.c_str()); 11945cb5ad27944efb08d4556b3c0d362302e37e832bElliott Hughes} 119537f7a40f6789bb287f287a9af00777af9d6428eeElliott Hughes 11965cb5ad27944efb08d4556b3c0d362302e37e832bElliott Hughesvoid Thread::ThrowNewException(const char* exception_class_descriptor, const char* msg) { 1197e5b0dc83537bf915c6abe4efeae6e501daf75a27Elliott Hughes // Convert "Ljava/lang/Exception;" into JNI-style "java/lang/Exception". 11980cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers CHECK_EQ('L', exception_class_descriptor[0]); 1199e5b0dc83537bf915c6abe4efeae6e501daf75a27Elliott Hughes std::string descriptor(exception_class_descriptor + 1); 12000cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers CHECK_EQ(';', descriptor[descriptor.length() - 1]); 1201e5b0dc83537bf915c6abe4efeae6e501daf75a27Elliott Hughes descriptor.erase(descriptor.length() - 1); 1202e5b0dc83537bf915c6abe4efeae6e501daf75a27Elliott Hughes 1203e5b0dc83537bf915c6abe4efeae6e501daf75a27Elliott Hughes JNIEnv* env = GetJniEnv(); 1204726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes ScopedLocalRef<jclass> exception_class(env, env->FindClass(descriptor.c_str())); 120530646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes if (exception_class.get() == NULL) { 120630646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes LOG(ERROR) << "Couldn't throw new " << descriptor << " because JNI FindClass failed: " 120730646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes << PrettyTypeOf(GetException()); 120830646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes CHECK(IsExceptionPending()); 120930646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes return; 121030646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 1211726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes int rc = env->ThrowNew(exception_class.get(), msg); 121230646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes if (rc != JNI_OK) { 121330646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes LOG(ERROR) << "Couldn't throw new " << descriptor << " because JNI ThrowNew failed: " 121430646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes << PrettyTypeOf(GetException()); 121530646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes CHECK(IsExceptionPending()); 121630646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes return; 121730646836b4a1c6e5e80ddaea246cf9669eaa0628Elliott Hughes } 1218a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes} 1219a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes 1220418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughesvoid Thread::ThrowOutOfMemoryError(Class* c, size_t byte_count) { 12212ced6a534157d5d963693346904389c19775d2daElliott Hughes std::string msg(StringPrintf("Failed to allocate a %zd-byte %s", byte_count, 12222ced6a534157d5d963693346904389c19775d2daElliott Hughes PrettyDescriptor(c->GetDescriptor()).c_str())); 12232ced6a534157d5d963693346904389c19775d2daElliott Hughes ThrowOutOfMemoryError(msg.c_str()); 12242ced6a534157d5d963693346904389c19775d2daElliott Hughes} 12252ced6a534157d5d963693346904389c19775d2daElliott Hughes 12262ced6a534157d5d963693346904389c19775d2daElliott Hughesvoid Thread::ThrowOutOfMemoryError(const char* msg) { 12272ced6a534157d5d963693346904389c19775d2daElliott Hughes LOG(ERROR) << StringPrintf("Throwing OutOfMemoryError \"%s\"%s", 12282ced6a534157d5d963693346904389c19775d2daElliott Hughes msg, (throwing_OutOfMemoryError_ ? " (recursive case)" : "")); 1229726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes if (!throwing_OutOfMemoryError_) { 1230726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes throwing_OutOfMemoryError_ = true; 1231accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes ThrowNewException("Ljava/lang/OutOfMemoryError;", NULL); 1232418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes } else { 1233726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes SetException(pre_allocated_OutOfMemoryError_); 1234418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes } 1235726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes throwing_OutOfMemoryError_ = false; 123679082e367845bbd68ec44ef2ddd1be8ef0e1550fElliott Hughes} 123779082e367845bbd68ec44ef2ddd1be8ef0e1550fElliott Hughes 1238accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1239498508c1187dc07d3eae5476784cde20f5224d93Elliott HughesThread* Thread::CurrentFromGdb() { 1240accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes return Thread::Current(); 1241accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes} 1242accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1243accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughesvoid Thread::DumpFromGdb() const { 1244accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes Dump(std::cerr); 1245accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes} 1246accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 1247bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogersclass CatchBlockStackVisitor : public Thread::StackVisitor { 1248bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers public: 1249bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers CatchBlockStackVisitor(Class* to_find, Context* ljc) 125067375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers : found_(false), to_find_(to_find), long_jump_context_(ljc), native_method_count_(0) { 125167375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers#ifndef NDEBUG 125267375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers handler_pc_ = 0xEBADC0DE; 125367375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers handler_frame_.SetSP(reinterpret_cast<Method**>(0xEBADF00D)); 125467375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers#endif 125567375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers } 1256bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 1257bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers virtual void VisitFrame(const Frame& fr, uintptr_t pc) { 1258bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers if (!found_) { 1259bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers Method* method = fr.GetMethod(); 126067375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers if (method == NULL) { 126167375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers // This is the upcall, we remember the frame and last_pc so that we may 126267375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers // long jump to them 1263a43cb5e8fb29989dbb986b9b91a68cda150aa3c8Elliott Hughes handler_pc_ = DemanglePc(pc); 126467375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers handler_frame_ = fr; 126567375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers return; 126667375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers } 126767375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers uint32_t dex_pc = DexFile::kDexNoIndex; 12683320cf46afd082398aa401b246e6f301cebdf64dBrian Carlstrom if (method->IsCalleeSaveMethod()) { 12699086572fa809d1a19d886b467e4da3ce42016982Ian Rogers // ignore callee save method 12709086572fa809d1a19d886b467e4da3ce42016982Ian Rogers } else if (method->IsNative()) { 12719086572fa809d1a19d886b467e4da3ce42016982Ian Rogers native_method_count_++; 12729086572fa809d1a19d886b467e4da3ce42016982Ian Rogers } else { 12739086572fa809d1a19d886b467e4da3ce42016982Ian Rogers dex_pc = method->ToDexPC(pc); 1274bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers } 1275bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers if (dex_pc != DexFile::kDexNoIndex) { 1276bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers uint32_t found_dex_pc = method->FindCatchBlock(to_find_, dex_pc); 1277bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers if (found_dex_pc != DexFile::kDexNoIndex) { 1278bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers found_ = true; 127967375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers handler_pc_ = method->ToNativePC(found_dex_pc); 128067375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers handler_frame_ = fr; 1281bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers } 1282bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers } 1283bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers if (!found_) { 1284bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers // Caller may be handler, fill in callee saves in context 1285bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers long_jump_context_->FillCalleeSaves(fr); 1286bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers } 12871a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 12881a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 12891a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 1290bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers // Did we find a catch block yet? 1291bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers bool found_; 1292bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers // The type of the exception catch block to find 1293bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers Class* to_find_; 1294bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers // Frame with found handler or last frame if no handler found 1295bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers Frame handler_frame_; 129667375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers // PC to branch to for the handler 129767375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers uintptr_t handler_pc_; 1298bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers // Context that will be the target of the long jump 1299bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers Context* long_jump_context_; 130067375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers // Number of native methods passed in crawl (equates to number of SIRTs to pop) 130167375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers uint32_t native_method_count_; 1302bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers}; 1303bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 1304ff1ed4770bf7ff024a807b9f909b1a26abb78341Ian Rogersvoid Thread::DeliverException() { 1305ff1ed4770bf7ff024a807b9f909b1a26abb78341Ian Rogers Throwable *exception = GetException(); // Set exception on thread 1306ff1ed4770bf7ff024a807b9f909b1a26abb78341Ian Rogers CHECK(exception != NULL); 1307bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 1308bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers Context* long_jump_context = GetLongJumpContext(); 1309bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers CatchBlockStackVisitor catch_finder(exception->GetClass(), long_jump_context); 131067375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers WalkStackUntilUpCall(&catch_finder, true); 1311bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 131267375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers long_jump_context->SetSP(reinterpret_cast<intptr_t>(catch_finder.handler_frame_.GetSP())); 131367375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers long_jump_context->SetPC(catch_finder.handler_pc_); 1314bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers long_jump_context->DoLongJump(); 1315bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers} 1316bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 1317bdb0391258abc54bf77c676e36847d28a783bfe5Ian RogersContext* Thread::GetLongJumpContext() { 131885d1545e985ac689db4bad7849880e843707c862Elliott Hughes Context* result = long_jump_context_; 1319bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers if (result == NULL) { 1320bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers result = Context::Create(); 132185d1545e985ac689db4bad7849880e843707c862Elliott Hughes long_jump_context_ = result; 13221a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 1323bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers return result; 13241a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao} 13251a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 13269fd66f5bb6a514147a53d57b419d18ecc7937122Elliott Hughesconst Method* Thread::GetCurrentMethod() const { 13279fd66f5bb6a514147a53d57b419d18ecc7937122Elliott Hughes Method* m = top_of_managed_stack_.GetMethod(); 13289fd66f5bb6a514147a53d57b419d18ecc7937122Elliott Hughes // We use JNI internally for exception throwing, so it's possible to arrive 13299fd66f5bb6a514147a53d57b419d18ecc7937122Elliott Hughes // here via a "FromCode" function, in which case there's a synthetic 13309fd66f5bb6a514147a53d57b419d18ecc7937122Elliott Hughes // callee-save method at the top of the stack. These shouldn't be user-visible, 13319fd66f5bb6a514147a53d57b419d18ecc7937122Elliott Hughes // so if we find one, skip it and return the compiled method underneath. 13329fd66f5bb6a514147a53d57b419d18ecc7937122Elliott Hughes if (m->IsCalleeSaveMethod()) { 13339fd66f5bb6a514147a53d57b419d18ecc7937122Elliott Hughes Frame f = top_of_managed_stack_; 13349fd66f5bb6a514147a53d57b419d18ecc7937122Elliott Hughes f.Next(); 13359fd66f5bb6a514147a53d57b419d18ecc7937122Elliott Hughes m = f.GetMethod(); 13369fd66f5bb6a514147a53d57b419d18ecc7937122Elliott Hughes } 13379fd66f5bb6a514147a53d57b419d18ecc7937122Elliott Hughes return m; 13389fd66f5bb6a514147a53d57b419d18ecc7937122Elliott Hughes} 13399fd66f5bb6a514147a53d57b419d18ecc7937122Elliott Hughes 13405f79133a435ebcb20000370d56046fe01201dd80Elliott Hughesbool Thread::HoldsLock(Object* object) { 13415f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes if (object == NULL) { 13425f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes return false; 13435f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 134424a3c2e9924e8765c4a9b4d383cb8f3b922f9c9fBrian Carlstrom return object->GetThinLockId() == thin_lock_id_; 13455f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes} 13465f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes 1347038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughesbool Thread::IsDaemon() { 1348038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes return gThread_daemon->GetBoolean(peer_); 1349038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes} 1350038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes 1351d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogersclass ReferenceMapVisitor : public Thread::StackVisitor { 1352d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers public: 1353d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers ReferenceMapVisitor(Context* context, Heap::RootVisitor* root_visitor, void* arg) : 1354d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers context_(context), root_visitor_(root_visitor), arg_(arg) { 1355d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 1356d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 1357d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers void VisitFrame(const Frame& frame, uintptr_t pc) { 1358d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers Method* m = frame.GetMethod(); 1359d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers // Process register map (which native and callee save methods don't have) 13603320cf46afd082398aa401b246e6f301cebdf64dBrian Carlstrom if (!m->IsNative() && !m->IsCalleeSaveMethod()) { 1361d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers UniquePtr<art::DexVerifier::RegisterMap> map(art::DexVerifier::GetExpandedRegisterMap(m)); 1362f57c47c29cd3388d1d78008a71c4e18f2217b70cIan Rogers const uint8_t* reg_bitmap = art::DexVerifier::RegisterMapGetLine(map.get(), m->ToDexPC(pc)); 13639f865379c9ddf03f7363f362a8d63cb5d5b4e722Elliott Hughes if (false) { 13649f865379c9ddf03f7363f362a8d63cb5d5b4e722Elliott Hughes LOG(INFO) << "Visiting stack roots in " << PrettyMethod(m, false) 13659f865379c9ddf03f7363f362a8d63cb5d5b4e722Elliott Hughes << "@ PC: " << m->ToDexPC(pc); 13669f865379c9ddf03f7363f362a8d63cb5d5b4e722Elliott Hughes } 1367d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers CHECK(reg_bitmap != NULL); 13683320cf46afd082398aa401b246e6f301cebdf64dBrian Carlstrom const uint16_t* vmap = m->GetVmapTable(); 1369d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers // For all dex registers 1370d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers for (int reg = 0; reg < m->NumRegisters(); ++reg) { 1371d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers // Does this register hold a reference? 1372d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers if (TestBitmap(reg, reg_bitmap)) { 1373d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers // Is the reference in the context or on the stack? 1374d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers bool in_context = false; 1375f57c47c29cd3388d1d78008a71c4e18f2217b70cIan Rogers uint32_t vmap_offset = 0xEBAD0FF5; 1376d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers // TODO: take advantage of the registers being ordered 13773320cf46afd082398aa401b246e6f301cebdf64dBrian Carlstrom for (int i = 0; i < m->GetVmapTableLength(); i++) { 13783320cf46afd082398aa401b246e6f301cebdf64dBrian Carlstrom if (vmap[i] == reg) { 1379d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers in_context = true; 1380d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers vmap_offset = i; 1381d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers break; 1382d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 1383d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 1384d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers Object* ref; 1385d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers if (in_context) { 1386d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers // Compute the register we need to load from the context 1387d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers uint32_t spill_mask = m->GetCoreSpillMask(); 1388f57c47c29cd3388d1d78008a71c4e18f2217b70cIan Rogers uint32_t matches = 0; 1389f57c47c29cd3388d1d78008a71c4e18f2217b70cIan Rogers uint32_t spill_shifts = 0; 1390f57c47c29cd3388d1d78008a71c4e18f2217b70cIan Rogers while (matches != (vmap_offset + 1)) { 1391f57c47c29cd3388d1d78008a71c4e18f2217b70cIan Rogers CHECK_NE(spill_mask, 0u); 1392f57c47c29cd3388d1d78008a71c4e18f2217b70cIan Rogers matches += spill_mask & 1; // Add 1 if the low bit is set 1393f57c47c29cd3388d1d78008a71c4e18f2217b70cIan Rogers spill_mask >>= 1; 1394f57c47c29cd3388d1d78008a71c4e18f2217b70cIan Rogers spill_shifts++; 1395d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 1396f57c47c29cd3388d1d78008a71c4e18f2217b70cIan Rogers spill_shifts--; // wind back one as we want the last match 1397f57c47c29cd3388d1d78008a71c4e18f2217b70cIan Rogers ref = reinterpret_cast<Object*>(context_->GetGPR(spill_shifts)); 1398d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } else { 1399362f9bc807169bcfc8761dde067bbfb79b5ad0fdElliott Hughes ref = reinterpret_cast<Object*>(frame.GetVReg(m, reg)); 1400d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 14014f894e385e8ac018f078be75fea0a45696626b15Shih-wei Liao if (ref != NULL) { 14024f894e385e8ac018f078be75fea0a45696626b15Shih-wei Liao root_visitor_(ref, arg_); 14034f894e385e8ac018f078be75fea0a45696626b15Shih-wei Liao } 1404d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 1405d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 1406d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 1407d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers context_->FillCalleeSaves(frame); 1408d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 1409d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 1410d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers private: 1411d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers bool TestBitmap(int reg, const uint8_t* reg_vector) { 1412d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers return ((reg_vector[reg / 8] >> (reg % 8)) & 0x01) != 0; 1413d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers } 1414d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 1415d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers // Context used to build up picture of callee saves 1416d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers Context* context_; 1417d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers // Call-back when we visit a root 1418d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers Heap::RootVisitor* root_visitor_; 1419d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers // Argument to call-back 1420d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers void* arg_; 1421d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers}; 1422d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers 1423d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogersvoid Thread::VisitRoots(Heap::RootVisitor* visitor, void* arg) { 1424d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes if (exception_ != NULL) { 1425d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes visitor(exception_, arg); 1426d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 1427d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes if (peer_ != NULL) { 1428d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes visitor(peer_, arg); 1429d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes } 1430726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes if (pre_allocated_OutOfMemoryError_ != NULL) { 1431726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes visitor(pre_allocated_OutOfMemoryError_, arg); 1432726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes } 143340381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom if (class_loader_override_ != NULL) { 143440381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom visitor(class_loader_override_, arg); 143540381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom } 1436410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes jni_env_->locals.VisitRoots(visitor, arg); 1437410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes jni_env_->monitors.VisitRoots(visitor, arg); 14388dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao 14398dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao SirtVisitRoots(visitor, arg); 14408dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao 1441d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers // Cheat and steal the long jump context. Assume that we are not doing a GC during exception 1442d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers // delivery. 1443d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers Context* context = GetLongJumpContext(); 1444d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers // Visit roots on this thread's stack 1445d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers ReferenceMapVisitor mapper(context, visitor, arg); 1446d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers WalkStack(&mapper); 1447410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes} 1448410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes 1449b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogersstatic const char* kStateNames[] = { 145093e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes "Terminated", 1451b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers "Runnable", 145293e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes "TimedWaiting", 1453b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers "Blocked", 1454b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers "Waiting", 145593e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes "Initializing", 145693e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes "Starting", 1457b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers "Native", 145893e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes "VmWait", 145993e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes "Suspended", 1460b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers}; 1461b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogersstd::ostream& operator<<(std::ostream& os, const Thread::State& state) { 14628e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes int32_t int_state = static_cast<int32_t>(state); 146393e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes if (state >= Thread::kTerminated && state <= Thread::kSuspended) { 146493e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes os << kStateNames[int_state]; 1465b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } else { 146693e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes os << "State[" << int_state << "]"; 1467b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 1468b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers return os; 1469b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers} 1470b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 1471330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughesstd::ostream& operator<<(std::ostream& os, const Thread& thread) { 1472330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes os << "Thread[" << &thread 1473e27955ca3ca960928d4dbd6cb79711fce06950b3Elliott Hughes << ",tid=" << thread.GetTid() 1474dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes << ",id=" << thread.GetThinLockId() 14758daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes << ",state=" << thread.GetState() 14768daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes << ",peer=" << thread.GetPeer() 14778daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes << "]"; 1478330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes return os; 1479330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes} 1480330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes 14818daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes} // namespace art 1482