Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
Brian Carlstrom | fc0e321 | 2013-07-17 14:40:12 -0700 | [diff] [blame] | 17 | #ifndef ART_RUNTIME_MIRROR_OBJECT_INL_H_ |
| 18 | #define ART_RUNTIME_MIRROR_OBJECT_INL_H_ |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 19 | |
| 20 | #include "object.h" |
| 21 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 22 | #include "art_field.h" |
| 23 | #include "art_method.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 24 | #include "atomic.h" |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 25 | #include "array-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 26 | #include "class.h" |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 27 | #include "lock_word-inl.h" |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 28 | #include "monitor.h" |
Hiroshi Yamauchi | 800ac2d | 2014-04-02 17:32:54 -0700 | [diff] [blame] | 29 | #include "read_barrier-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 30 | #include "runtime.h" |
Mathieu Chartier | 8fa2dad | 2014-03-13 12:22:56 -0700 | [diff] [blame] | 31 | #include "reference.h" |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 32 | #include "throwable.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 33 | |
| 34 | namespace art { |
| 35 | namespace mirror { |
| 36 | |
Hiroshi Yamauchi | 6e83c17 | 2014-05-01 21:25:41 -0700 | [diff] [blame] | 37 | template<VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption> |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 38 | inline Class* Object::GetClass() { |
Hiroshi Yamauchi | 6e83c17 | 2014-05-01 21:25:41 -0700 | [diff] [blame] | 39 | return GetFieldObject<Class, kVerifyFlags, kReadBarrierOption>( |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 40 | OFFSET_OF_OBJECT_MEMBER(Object, klass_)); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 41 | } |
| 42 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 43 | template<VerifyObjectFlags kVerifyFlags> |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 44 | inline void Object::SetClass(Class* new_klass) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 45 | // new_klass may be NULL prior to class linker initialization. |
| 46 | // We don't mark the card as this occurs as part of object allocation. Not all objects have |
| 47 | // backing cards, such as large objects. |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 48 | // We use non transactional version since we can't undo this write. We also disable checking as |
| 49 | // we may run in transaction mode here. |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 50 | SetFieldObjectWithoutWriteBarrier<false, false, |
| 51 | static_cast<VerifyObjectFlags>(kVerifyFlags & ~kVerifyThis)>( |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 52 | OFFSET_OF_OBJECT_MEMBER(Object, klass_), new_klass); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 53 | } |
| 54 | |
Mathieu Chartier | bbd695c | 2014-04-16 09:48:48 -0700 | [diff] [blame] | 55 | inline LockWord Object::GetLockWord(bool as_volatile) { |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 56 | if (as_volatile) { |
| 57 | return LockWord(GetField32Volatile(OFFSET_OF_OBJECT_MEMBER(Object, monitor_))); |
| 58 | } |
| 59 | return LockWord(GetField32(OFFSET_OF_OBJECT_MEMBER(Object, monitor_))); |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 60 | } |
| 61 | |
Mathieu Chartier | bbd695c | 2014-04-16 09:48:48 -0700 | [diff] [blame] | 62 | inline void Object::SetLockWord(LockWord new_val, bool as_volatile) { |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 63 | // Force use of non-transactional mode and do not check. |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 64 | if (as_volatile) { |
| 65 | SetField32Volatile<false, false>(OFFSET_OF_OBJECT_MEMBER(Object, monitor_), new_val.GetValue()); |
| 66 | } else { |
| 67 | SetField32<false, false>(OFFSET_OF_OBJECT_MEMBER(Object, monitor_), new_val.GetValue()); |
| 68 | } |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 69 | } |
| 70 | |
| 71 | inline bool Object::CasLockWord(LockWord old_val, LockWord new_val) { |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 72 | // Force use of non-transactional mode and do not check. |
| 73 | return CasField32<false, false>(OFFSET_OF_OBJECT_MEMBER(Object, monitor_), old_val.GetValue(), |
| 74 | new_val.GetValue()); |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 75 | } |
| 76 | |
| 77 | inline uint32_t Object::GetLockOwnerThreadId() { |
| 78 | return Monitor::GetLockOwnerThreadId(this); |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 79 | } |
| 80 | |
Mathieu Chartier | e7e8a5f | 2014-02-14 16:59:41 -0800 | [diff] [blame] | 81 | inline mirror::Object* Object::MonitorEnter(Thread* self) { |
| 82 | return Monitor::MonitorEnter(self, this); |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 83 | } |
| 84 | |
| 85 | inline bool Object::MonitorExit(Thread* self) { |
| 86 | return Monitor::MonitorExit(self, this); |
| 87 | } |
| 88 | |
| 89 | inline void Object::Notify(Thread* self) { |
| 90 | Monitor::Notify(self, this); |
| 91 | } |
| 92 | |
| 93 | inline void Object::NotifyAll(Thread* self) { |
| 94 | Monitor::NotifyAll(self, this); |
| 95 | } |
| 96 | |
| 97 | inline void Object::Wait(Thread* self) { |
| 98 | Monitor::Wait(self, this, 0, 0, true, kWaiting); |
| 99 | } |
| 100 | |
| 101 | inline void Object::Wait(Thread* self, int64_t ms, int32_t ns) { |
| 102 | Monitor::Wait(self, this, ms, ns, true, kTimedWaiting); |
| 103 | } |
| 104 | |
Hiroshi Yamauchi | 624468c | 2014-03-31 15:14:47 -0700 | [diff] [blame] | 105 | inline Object* Object::GetReadBarrierPointer() { |
| 106 | #ifdef USE_BAKER_OR_BROOKS_READ_BARRIER |
| 107 | DCHECK(kUseBakerOrBrooksReadBarrier); |
Hiroshi Yamauchi | 6a154a4 | 2014-05-02 14:26:13 -0700 | [diff] [blame] | 108 | return GetFieldObject<Object, kVerifyNone, kWithoutReadBarrier>( |
| 109 | OFFSET_OF_OBJECT_MEMBER(Object, x_rb_ptr_)); |
Hiroshi Yamauchi | 9d04a20 | 2014-01-31 13:35:49 -0800 | [diff] [blame] | 110 | #else |
| 111 | LOG(FATAL) << "Unreachable"; |
| 112 | return nullptr; |
| 113 | #endif |
| 114 | } |
| 115 | |
Hiroshi Yamauchi | 9103c86 | 2014-04-22 13:51:07 -0700 | [diff] [blame] | 116 | inline void Object::SetReadBarrierPointer(Object* rb_ptr) { |
Hiroshi Yamauchi | 624468c | 2014-03-31 15:14:47 -0700 | [diff] [blame] | 117 | #ifdef USE_BAKER_OR_BROOKS_READ_BARRIER |
| 118 | DCHECK(kUseBakerOrBrooksReadBarrier); |
Hiroshi Yamauchi | 9d04a20 | 2014-01-31 13:35:49 -0800 | [diff] [blame] | 119 | // We don't mark the card as this occurs as part of object allocation. Not all objects have |
| 120 | // backing cards, such as large objects. |
| 121 | SetFieldObjectWithoutWriteBarrier<false, false, kVerifyNone>( |
Hiroshi Yamauchi | 6a154a4 | 2014-05-02 14:26:13 -0700 | [diff] [blame] | 122 | OFFSET_OF_OBJECT_MEMBER(Object, x_rb_ptr_), rb_ptr); |
Hiroshi Yamauchi | 9d04a20 | 2014-01-31 13:35:49 -0800 | [diff] [blame] | 123 | #else |
| 124 | LOG(FATAL) << "Unreachable"; |
| 125 | #endif |
| 126 | } |
| 127 | |
Hiroshi Yamauchi | 9103c86 | 2014-04-22 13:51:07 -0700 | [diff] [blame] | 128 | inline bool Object::AtomicSetReadBarrierPointer(Object* expected_rb_ptr, Object* rb_ptr) { |
| 129 | #ifdef USE_BAKER_OR_BROOKS_READ_BARRIER |
| 130 | DCHECK(kUseBakerOrBrooksReadBarrier); |
| 131 | MemberOffset offset = OFFSET_OF_OBJECT_MEMBER(Object, x_rb_ptr_); |
| 132 | byte* raw_addr = reinterpret_cast<byte*>(this) + offset.SizeValue(); |
| 133 | HeapReference<Object>* ref = reinterpret_cast<HeapReference<Object>*>(raw_addr); |
| 134 | HeapReference<Object> expected_ref(HeapReference<Object>::FromMirrorPtr(expected_rb_ptr)); |
| 135 | HeapReference<Object> new_ref(HeapReference<Object>::FromMirrorPtr(rb_ptr)); |
| 136 | uint32_t expected_val = expected_ref.reference_; |
| 137 | uint32_t new_val; |
| 138 | do { |
| 139 | uint32_t old_val = ref->reference_; |
| 140 | if (old_val != expected_val) { |
| 141 | // Lost the race. |
| 142 | return false; |
| 143 | } |
| 144 | new_val = new_ref.reference_; |
| 145 | } while (!__sync_bool_compare_and_swap( |
| 146 | reinterpret_cast<uint32_t*>(raw_addr), expected_val, new_val)); |
| 147 | DCHECK_EQ(new_val, ref->reference_); |
| 148 | return true; |
| 149 | #else |
| 150 | LOG(FATAL) << "Unreachable"; |
| 151 | return false; |
| 152 | #endif |
| 153 | } |
| 154 | |
Hiroshi Yamauchi | 624468c | 2014-03-31 15:14:47 -0700 | [diff] [blame] | 155 | inline void Object::AssertReadBarrierPointer() const { |
Hiroshi Yamauchi | 800ac2d | 2014-04-02 17:32:54 -0700 | [diff] [blame] | 156 | if (kUseBakerReadBarrier) { |
| 157 | Object* obj = const_cast<Object*>(this); |
| 158 | DCHECK(obj->GetReadBarrierPointer() == nullptr) |
| 159 | << "Bad Baker pointer: obj=" << reinterpret_cast<void*>(obj) |
| 160 | << " ptr=" << reinterpret_cast<void*>(obj->GetReadBarrierPointer()); |
| 161 | } else if (kUseBrooksReadBarrier) { |
| 162 | Object* obj = const_cast<Object*>(this); |
| 163 | DCHECK_EQ(obj, obj->GetReadBarrierPointer()) |
| 164 | << "Bad Brooks pointer: obj=" << reinterpret_cast<void*>(obj) |
| 165 | << " ptr=" << reinterpret_cast<void*>(obj->GetReadBarrierPointer()); |
| 166 | } else { |
| 167 | LOG(FATAL) << "Unreachable"; |
| 168 | } |
Hiroshi Yamauchi | 9d04a20 | 2014-01-31 13:35:49 -0800 | [diff] [blame] | 169 | } |
| 170 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 171 | template<VerifyObjectFlags kVerifyFlags> |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 172 | inline bool Object::VerifierInstanceOf(Class* klass) { |
Jeff Hao | a3faaf4 | 2013-09-03 19:07:00 -0700 | [diff] [blame] | 173 | DCHECK(klass != NULL); |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 174 | DCHECK(GetClass<kVerifyFlags>() != NULL); |
Jeff Hao | a3faaf4 | 2013-09-03 19:07:00 -0700 | [diff] [blame] | 175 | return klass->IsInterface() || InstanceOf(klass); |
| 176 | } |
| 177 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 178 | template<VerifyObjectFlags kVerifyFlags> |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 179 | inline bool Object::InstanceOf(Class* klass) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 180 | DCHECK(klass != NULL); |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 181 | DCHECK(GetClass<kVerifyNone>() != NULL); |
| 182 | return klass->IsAssignableFrom(GetClass<kVerifyFlags>()); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 183 | } |
| 184 | |
Hiroshi Yamauchi | 6e83c17 | 2014-05-01 21:25:41 -0700 | [diff] [blame] | 185 | template<VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption> |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 186 | inline bool Object::IsClass() { |
Hiroshi Yamauchi | 6e83c17 | 2014-05-01 21:25:41 -0700 | [diff] [blame] | 187 | Class* java_lang_Class = GetClass<kVerifyFlags, kReadBarrierOption>()-> |
| 188 | template GetClass<kVerifyFlags, kReadBarrierOption>(); |
| 189 | return GetClass<static_cast<VerifyObjectFlags>(kVerifyFlags & ~kVerifyThis), |
| 190 | kReadBarrierOption>() == java_lang_Class; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 191 | } |
| 192 | |
Hiroshi Yamauchi | 6e83c17 | 2014-05-01 21:25:41 -0700 | [diff] [blame] | 193 | template<VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption> |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 194 | inline Class* Object::AsClass() { |
Hiroshi Yamauchi | 6e83c17 | 2014-05-01 21:25:41 -0700 | [diff] [blame] | 195 | DCHECK((IsClass<kVerifyFlags, kReadBarrierOption>())); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 196 | return down_cast<Class*>(this); |
| 197 | } |
| 198 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 199 | template<VerifyObjectFlags kVerifyFlags> |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 200 | inline bool Object::IsObjectArray() { |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 201 | constexpr auto kNewFlags = static_cast<VerifyObjectFlags>(kVerifyFlags & ~kVerifyThis); |
| 202 | return IsArrayInstance<kVerifyFlags>() && |
| 203 | !GetClass<kNewFlags>()->template GetComponentType<kNewFlags>()->IsPrimitive(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 204 | } |
| 205 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 206 | template<class T, VerifyObjectFlags kVerifyFlags> |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 207 | inline ObjectArray<T>* Object::AsObjectArray() { |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 208 | DCHECK(IsObjectArray<kVerifyFlags>()); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 209 | return down_cast<ObjectArray<T>*>(this); |
| 210 | } |
| 211 | |
Hiroshi Yamauchi | 6e83c17 | 2014-05-01 21:25:41 -0700 | [diff] [blame] | 212 | template<VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption> |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 213 | inline bool Object::IsArrayInstance() { |
Hiroshi Yamauchi | 6e83c17 | 2014-05-01 21:25:41 -0700 | [diff] [blame] | 214 | return GetClass<kVerifyFlags, kReadBarrierOption>()-> |
| 215 | template IsArrayClass<kVerifyFlags, kReadBarrierOption>(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 216 | } |
| 217 | |
Hiroshi Yamauchi | 6e83c17 | 2014-05-01 21:25:41 -0700 | [diff] [blame] | 218 | template<VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption> |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 219 | inline bool Object::IsArtField() { |
Hiroshi Yamauchi | 6e83c17 | 2014-05-01 21:25:41 -0700 | [diff] [blame] | 220 | return GetClass<kVerifyFlags, kReadBarrierOption>()-> |
| 221 | template IsArtFieldClass<kReadBarrierOption>(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 222 | } |
| 223 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 224 | template<VerifyObjectFlags kVerifyFlags> |
| 225 | inline ArtField* Object::AsArtField() { |
| 226 | DCHECK(IsArtField<kVerifyFlags>()); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 227 | return down_cast<ArtField*>(this); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 228 | } |
| 229 | |
Hiroshi Yamauchi | 6e83c17 | 2014-05-01 21:25:41 -0700 | [diff] [blame] | 230 | template<VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption> |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 231 | inline bool Object::IsArtMethod() { |
Hiroshi Yamauchi | 6e83c17 | 2014-05-01 21:25:41 -0700 | [diff] [blame] | 232 | return GetClass<kVerifyFlags, kReadBarrierOption>()-> |
| 233 | template IsArtMethodClass<kReadBarrierOption>(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 234 | } |
| 235 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 236 | template<VerifyObjectFlags kVerifyFlags> |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 237 | inline ArtMethod* Object::AsArtMethod() { |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 238 | DCHECK(IsArtMethod<kVerifyFlags>()); |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 239 | return down_cast<ArtMethod*>(this); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 240 | } |
| 241 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 242 | template<VerifyObjectFlags kVerifyFlags> |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 243 | inline bool Object::IsReferenceInstance() { |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 244 | return GetClass<kVerifyFlags>()->IsReferenceClass(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 245 | } |
| 246 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 247 | template<VerifyObjectFlags kVerifyFlags> |
Mathieu Chartier | 8fa2dad | 2014-03-13 12:22:56 -0700 | [diff] [blame] | 248 | inline Reference* Object::AsReference() { |
| 249 | DCHECK(IsReferenceInstance<kVerifyFlags>()); |
| 250 | return down_cast<Reference*>(this); |
| 251 | } |
| 252 | |
Hiroshi Yamauchi | 6e83c17 | 2014-05-01 21:25:41 -0700 | [diff] [blame] | 253 | template<VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption> |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 254 | inline Array* Object::AsArray() { |
Hiroshi Yamauchi | 6e83c17 | 2014-05-01 21:25:41 -0700 | [diff] [blame] | 255 | DCHECK((IsArrayInstance<kVerifyFlags, kReadBarrierOption>())); |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 256 | return down_cast<Array*>(this); |
| 257 | } |
| 258 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 259 | template<VerifyObjectFlags kVerifyFlags> |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 260 | inline BooleanArray* Object::AsBooleanArray() { |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 261 | constexpr auto kNewFlags = static_cast<VerifyObjectFlags>(kVerifyFlags & ~kVerifyThis); |
| 262 | DCHECK(GetClass<kVerifyFlags>()->IsArrayClass()); |
| 263 | DCHECK(GetClass<kNewFlags>()->GetComponentType()->IsPrimitiveBoolean()); |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 264 | return down_cast<BooleanArray*>(this); |
| 265 | } |
| 266 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 267 | template<VerifyObjectFlags kVerifyFlags> |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 268 | inline ByteArray* Object::AsByteArray() { |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 269 | static const VerifyObjectFlags kNewFlags = static_cast<VerifyObjectFlags>(kVerifyFlags & ~kVerifyThis); |
| 270 | DCHECK(GetClass<kVerifyFlags>()->IsArrayClass()); |
| 271 | DCHECK(GetClass<kNewFlags>()->template GetComponentType<kNewFlags>()->IsPrimitiveByte()); |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 272 | return down_cast<ByteArray*>(this); |
| 273 | } |
| 274 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 275 | template<VerifyObjectFlags kVerifyFlags> |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 276 | inline ByteArray* Object::AsByteSizedArray() { |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 277 | constexpr VerifyObjectFlags kNewFlags = static_cast<VerifyObjectFlags>(kVerifyFlags & ~kVerifyThis); |
| 278 | DCHECK(GetClass<kVerifyFlags>()->IsArrayClass()); |
| 279 | DCHECK(GetClass<kNewFlags>()->template GetComponentType<kNewFlags>()->IsPrimitiveByte() || |
| 280 | GetClass<kNewFlags>()->template GetComponentType<kNewFlags>()->IsPrimitiveBoolean()); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 281 | return down_cast<ByteArray*>(this); |
| 282 | } |
| 283 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 284 | template<VerifyObjectFlags kVerifyFlags> |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 285 | inline CharArray* Object::AsCharArray() { |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 286 | constexpr auto kNewFlags = static_cast<VerifyObjectFlags>(kVerifyFlags & ~kVerifyThis); |
| 287 | DCHECK(GetClass<kVerifyFlags>()->IsArrayClass()); |
| 288 | DCHECK(GetClass<kNewFlags>()->template GetComponentType<kNewFlags>()->IsPrimitiveChar()); |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 289 | return down_cast<CharArray*>(this); |
| 290 | } |
| 291 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 292 | template<VerifyObjectFlags kVerifyFlags> |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 293 | inline ShortArray* Object::AsShortArray() { |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 294 | constexpr auto kNewFlags = static_cast<VerifyObjectFlags>(kVerifyFlags & ~kVerifyThis); |
| 295 | DCHECK(GetClass<kVerifyFlags>()->IsArrayClass()); |
| 296 | DCHECK(GetClass<kNewFlags>()->template GetComponentType<kNewFlags>()->IsPrimitiveShort()); |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 297 | return down_cast<ShortArray*>(this); |
| 298 | } |
| 299 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 300 | template<VerifyObjectFlags kVerifyFlags> |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 301 | inline ShortArray* Object::AsShortSizedArray() { |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 302 | constexpr auto kNewFlags = static_cast<VerifyObjectFlags>(kVerifyFlags & ~kVerifyThis); |
| 303 | DCHECK(GetClass<kVerifyFlags>()->IsArrayClass()); |
| 304 | DCHECK(GetClass<kNewFlags>()->template GetComponentType<kNewFlags>()->IsPrimitiveShort() || |
| 305 | GetClass<kNewFlags>()->template GetComponentType<kNewFlags>()->IsPrimitiveChar()); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 306 | return down_cast<ShortArray*>(this); |
| 307 | } |
| 308 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 309 | template<VerifyObjectFlags kVerifyFlags> |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 310 | inline IntArray* Object::AsIntArray() { |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 311 | constexpr auto kNewFlags = static_cast<VerifyObjectFlags>(kVerifyFlags & ~kVerifyThis); |
| 312 | DCHECK(GetClass<kVerifyFlags>()->IsArrayClass()); |
| 313 | DCHECK(GetClass<kNewFlags>()->template GetComponentType<kNewFlags>()->IsPrimitiveInt() || |
| 314 | GetClass<kNewFlags>()->template GetComponentType<kNewFlags>()->IsPrimitiveFloat()); |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 315 | return down_cast<IntArray*>(this); |
| 316 | } |
| 317 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 318 | template<VerifyObjectFlags kVerifyFlags> |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 319 | inline LongArray* Object::AsLongArray() { |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 320 | constexpr auto kNewFlags = static_cast<VerifyObjectFlags>(kVerifyFlags & ~kVerifyThis); |
| 321 | DCHECK(GetClass<kVerifyFlags>()->IsArrayClass()); |
| 322 | DCHECK(GetClass<kNewFlags>()->template GetComponentType<kNewFlags>()->IsPrimitiveLong() || |
| 323 | GetClass<kNewFlags>()->template GetComponentType<kNewFlags>()->IsPrimitiveDouble()); |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 324 | return down_cast<LongArray*>(this); |
| 325 | } |
| 326 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 327 | template<VerifyObjectFlags kVerifyFlags> |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 328 | inline FloatArray* Object::AsFloatArray() { |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 329 | constexpr auto kNewFlags = static_cast<VerifyObjectFlags>(kVerifyFlags & ~kVerifyThis); |
| 330 | DCHECK(GetClass<kVerifyFlags>()->IsArrayClass()); |
| 331 | DCHECK(GetClass<kNewFlags>()->template GetComponentType<kNewFlags>()->IsPrimitiveFloat()); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 332 | return down_cast<FloatArray*>(this); |
| 333 | } |
| 334 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 335 | template<VerifyObjectFlags kVerifyFlags> |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 336 | inline DoubleArray* Object::AsDoubleArray() { |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 337 | constexpr auto kNewFlags = static_cast<VerifyObjectFlags>(kVerifyFlags & ~kVerifyThis); |
| 338 | DCHECK(GetClass<kVerifyFlags>()->IsArrayClass()); |
| 339 | DCHECK(GetClass<kNewFlags>()->template GetComponentType<kNewFlags>()->IsPrimitiveDouble()); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 340 | return down_cast<DoubleArray*>(this); |
| 341 | } |
| 342 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 343 | template<VerifyObjectFlags kVerifyFlags> |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 344 | inline String* Object::AsString() { |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 345 | DCHECK(GetClass<kVerifyFlags>()->IsStringClass()); |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 346 | return down_cast<String*>(this); |
| 347 | } |
| 348 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 349 | template<VerifyObjectFlags kVerifyFlags> |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 350 | inline Throwable* Object::AsThrowable() { |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 351 | DCHECK(GetClass<kVerifyFlags>()->IsThrowableClass()); |
Ian Rogers | 05f3057 | 2013-02-20 12:13:11 -0800 | [diff] [blame] | 352 | return down_cast<Throwable*>(this); |
| 353 | } |
| 354 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 355 | template<VerifyObjectFlags kVerifyFlags> |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 356 | inline bool Object::IsWeakReferenceInstance() { |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 357 | return GetClass<kVerifyFlags>()->IsWeakReferenceClass(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 358 | } |
| 359 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 360 | template<VerifyObjectFlags kVerifyFlags> |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 361 | inline bool Object::IsSoftReferenceInstance() { |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 362 | return GetClass<kVerifyFlags>()->IsSoftReferenceClass(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 363 | } |
| 364 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 365 | template<VerifyObjectFlags kVerifyFlags> |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 366 | inline bool Object::IsFinalizerReferenceInstance() { |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 367 | return GetClass<kVerifyFlags>()->IsFinalizerReferenceClass(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 368 | } |
| 369 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 370 | template<VerifyObjectFlags kVerifyFlags> |
Mathieu Chartier | 8fa2dad | 2014-03-13 12:22:56 -0700 | [diff] [blame] | 371 | inline FinalizerReference* Object::AsFinalizerReference() { |
| 372 | DCHECK(IsFinalizerReferenceInstance<kVerifyFlags>()); |
| 373 | return down_cast<FinalizerReference*>(this); |
| 374 | } |
| 375 | |
| 376 | template<VerifyObjectFlags kVerifyFlags> |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 377 | inline bool Object::IsPhantomReferenceInstance() { |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 378 | return GetClass<kVerifyFlags>()->IsPhantomReferenceClass(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 379 | } |
| 380 | |
Hiroshi Yamauchi | 6e83c17 | 2014-05-01 21:25:41 -0700 | [diff] [blame] | 381 | template<VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption> |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 382 | inline size_t Object::SizeOf() { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 383 | size_t result; |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 384 | constexpr auto kNewFlags = static_cast<VerifyObjectFlags>(kVerifyFlags & ~kVerifyThis); |
Hiroshi Yamauchi | 6e83c17 | 2014-05-01 21:25:41 -0700 | [diff] [blame] | 385 | if (IsArrayInstance<kVerifyFlags, kReadBarrierOption>()) { |
| 386 | result = AsArray<kNewFlags, kReadBarrierOption>()-> |
| 387 | template SizeOf<kNewFlags, kReadBarrierOption>(); |
| 388 | } else if (IsClass<kNewFlags, kReadBarrierOption>()) { |
| 389 | result = AsClass<kNewFlags, kReadBarrierOption>()-> |
| 390 | template SizeOf<kNewFlags, kReadBarrierOption>(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 391 | } else { |
Hiroshi Yamauchi | 25023c7 | 2014-05-09 11:45:53 -0700 | [diff] [blame] | 392 | result = GetClass<kNewFlags, kReadBarrierOption>()-> |
| 393 | template GetObjectSize<kNewFlags, kReadBarrierOption>(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 394 | } |
Hiroshi Yamauchi | 9103c86 | 2014-04-22 13:51:07 -0700 | [diff] [blame] | 395 | DCHECK_GE(result, sizeof(Object)) |
Hiroshi Yamauchi | 6e83c17 | 2014-05-01 21:25:41 -0700 | [diff] [blame] | 396 | << " class=" << PrettyTypeOf(GetClass<kNewFlags, kReadBarrierOption>()); |
| 397 | DCHECK(!(IsArtField<kNewFlags, kReadBarrierOption>()) || result == sizeof(ArtField)); |
| 398 | DCHECK(!(IsArtMethod<kNewFlags, kReadBarrierOption>()) || result == sizeof(ArtMethod)); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 399 | return result; |
| 400 | } |
| 401 | |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 402 | template<VerifyObjectFlags kVerifyFlags, bool kIsVolatile> |
| 403 | inline int32_t Object::GetField32(MemberOffset field_offset) { |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 404 | if (kVerifyFlags & kVerifyThis) { |
| 405 | VerifyObject(this); |
| 406 | } |
Ian Rogers | b122a4b | 2013-11-19 18:00:50 -0800 | [diff] [blame] | 407 | const byte* raw_addr = reinterpret_cast<const byte*>(this) + field_offset.Int32Value(); |
| 408 | const int32_t* word_addr = reinterpret_cast<const int32_t*>(raw_addr); |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 409 | if (UNLIKELY(kIsVolatile)) { |
Ian Rogers | b122a4b | 2013-11-19 18:00:50 -0800 | [diff] [blame] | 410 | int32_t result = *(reinterpret_cast<volatile int32_t*>(const_cast<int32_t*>(word_addr))); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 411 | QuasiAtomic::MembarLoadLoad(); // Ensure volatile loads don't re-order. |
Ian Rogers | b122a4b | 2013-11-19 18:00:50 -0800 | [diff] [blame] | 412 | return result; |
| 413 | } else { |
| 414 | return *word_addr; |
| 415 | } |
| 416 | } |
| 417 | |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 418 | template<VerifyObjectFlags kVerifyFlags> |
| 419 | inline int32_t Object::GetField32Volatile(MemberOffset field_offset) { |
| 420 | return GetField32<kVerifyFlags, true>(field_offset); |
| 421 | } |
| 422 | |
| 423 | template<bool kTransactionActive, bool kCheckTransaction, VerifyObjectFlags kVerifyFlags, |
| 424 | bool kIsVolatile> |
| 425 | inline void Object::SetField32(MemberOffset field_offset, int32_t new_value) { |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 426 | if (kCheckTransaction) { |
| 427 | DCHECK_EQ(kTransactionActive, Runtime::Current()->IsActiveTransaction()); |
| 428 | } |
| 429 | if (kTransactionActive) { |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 430 | Runtime::Current()->RecordWriteField32(this, field_offset, |
| 431 | GetField32<kVerifyFlags, kIsVolatile>(field_offset), |
| 432 | kIsVolatile); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 433 | } |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 434 | if (kVerifyFlags & kVerifyThis) { |
Ian Rogers | b122a4b | 2013-11-19 18:00:50 -0800 | [diff] [blame] | 435 | VerifyObject(this); |
| 436 | } |
| 437 | byte* raw_addr = reinterpret_cast<byte*>(this) + field_offset.Int32Value(); |
Ian Rogers | 29501cf | 2014-02-07 21:00:25 -0800 | [diff] [blame] | 438 | int32_t* word_addr = reinterpret_cast<int32_t*>(raw_addr); |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 439 | if (kIsVolatile) { |
Ian Rogers | b122a4b | 2013-11-19 18:00:50 -0800 | [diff] [blame] | 440 | QuasiAtomic::MembarStoreStore(); // Ensure this store occurs after others in the queue. |
| 441 | *word_addr = new_value; |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 442 | QuasiAtomic::MembarStoreLoad(); // Ensure this store occurs before any volatile loads. |
Ian Rogers | b122a4b | 2013-11-19 18:00:50 -0800 | [diff] [blame] | 443 | } else { |
| 444 | *word_addr = new_value; |
| 445 | } |
| 446 | } |
| 447 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 448 | template<bool kTransactionActive, bool kCheckTransaction, VerifyObjectFlags kVerifyFlags> |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 449 | inline void Object::SetField32Volatile(MemberOffset field_offset, int32_t new_value) { |
| 450 | SetField32<kTransactionActive, kCheckTransaction, kVerifyFlags, true>(field_offset, new_value); |
| 451 | } |
| 452 | |
| 453 | template<bool kTransactionActive, bool kCheckTransaction, VerifyObjectFlags kVerifyFlags> |
Ian Rogers | 29501cf | 2014-02-07 21:00:25 -0800 | [diff] [blame] | 454 | inline bool Object::CasField32(MemberOffset field_offset, int32_t old_value, int32_t new_value) { |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 455 | if (kCheckTransaction) { |
| 456 | DCHECK_EQ(kTransactionActive, Runtime::Current()->IsActiveTransaction()); |
| 457 | } |
| 458 | if (kTransactionActive) { |
| 459 | Runtime::Current()->RecordWriteField32(this, field_offset, old_value, true); |
| 460 | } |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 461 | if (kVerifyFlags & kVerifyThis) { |
| 462 | VerifyObject(this); |
| 463 | } |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 464 | byte* raw_addr = reinterpret_cast<byte*>(this) + field_offset.Int32Value(); |
Ian Rogers | 29501cf | 2014-02-07 21:00:25 -0800 | [diff] [blame] | 465 | volatile int32_t* addr = reinterpret_cast<volatile int32_t*>(raw_addr); |
Ian Rogers | b122a4b | 2013-11-19 18:00:50 -0800 | [diff] [blame] | 466 | return __sync_bool_compare_and_swap(addr, old_value, new_value); |
Ian Rogers | d9c4fc9 | 2013-10-01 19:45:43 -0700 | [diff] [blame] | 467 | } |
| 468 | |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 469 | template<VerifyObjectFlags kVerifyFlags, bool kIsVolatile> |
| 470 | inline int64_t Object::GetField64(MemberOffset field_offset) { |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 471 | if (kVerifyFlags & kVerifyThis) { |
| 472 | VerifyObject(this); |
| 473 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 474 | const byte* raw_addr = reinterpret_cast<const byte*>(this) + field_offset.Int32Value(); |
| 475 | const int64_t* addr = reinterpret_cast<const int64_t*>(raw_addr); |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 476 | if (kIsVolatile) { |
Ian Rogers | 29501cf | 2014-02-07 21:00:25 -0800 | [diff] [blame] | 477 | int64_t result = QuasiAtomic::Read64(addr); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 478 | QuasiAtomic::MembarLoadLoad(); // Ensure volatile loads don't re-order. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 479 | return result; |
| 480 | } else { |
| 481 | return *addr; |
| 482 | } |
| 483 | } |
| 484 | |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 485 | template<VerifyObjectFlags kVerifyFlags> |
| 486 | inline int64_t Object::GetField64Volatile(MemberOffset field_offset) { |
| 487 | return GetField64<kVerifyFlags, true>(field_offset); |
| 488 | } |
| 489 | |
| 490 | template<bool kTransactionActive, bool kCheckTransaction, VerifyObjectFlags kVerifyFlags, |
| 491 | bool kIsVolatile> |
| 492 | inline void Object::SetField64(MemberOffset field_offset, int64_t new_value) { |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 493 | if (kCheckTransaction) { |
| 494 | DCHECK_EQ(kTransactionActive, Runtime::Current()->IsActiveTransaction()); |
| 495 | } |
| 496 | if (kTransactionActive) { |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 497 | Runtime::Current()->RecordWriteField64(this, field_offset, |
| 498 | GetField64<kVerifyFlags, kIsVolatile>(field_offset), |
| 499 | kIsVolatile); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 500 | } |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 501 | if (kVerifyFlags & kVerifyThis) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 502 | VerifyObject(this); |
| 503 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 504 | byte* raw_addr = reinterpret_cast<byte*>(this) + field_offset.Int32Value(); |
| 505 | int64_t* addr = reinterpret_cast<int64_t*>(raw_addr); |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 506 | if (kIsVolatile) { |
Ian Rogers | b122a4b | 2013-11-19 18:00:50 -0800 | [diff] [blame] | 507 | QuasiAtomic::MembarStoreStore(); // Ensure this store occurs after others in the queue. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 508 | QuasiAtomic::Write64(addr, new_value); |
Ian Rogers | b122a4b | 2013-11-19 18:00:50 -0800 | [diff] [blame] | 509 | if (!QuasiAtomic::LongAtomicsUseMutexes()) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 510 | QuasiAtomic::MembarStoreLoad(); // Ensure this store occurs before any volatile loads. |
Ian Rogers | b122a4b | 2013-11-19 18:00:50 -0800 | [diff] [blame] | 511 | } else { |
| 512 | // Fence from from mutex is enough. |
| 513 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 514 | } else { |
| 515 | *addr = new_value; |
| 516 | } |
| 517 | } |
| 518 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 519 | template<bool kTransactionActive, bool kCheckTransaction, VerifyObjectFlags kVerifyFlags> |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 520 | inline void Object::SetField64Volatile(MemberOffset field_offset, int64_t new_value) { |
| 521 | return SetField64<kTransactionActive, kCheckTransaction, kVerifyFlags, true>(field_offset, |
| 522 | new_value); |
| 523 | } |
| 524 | |
| 525 | template<bool kTransactionActive, bool kCheckTransaction, VerifyObjectFlags kVerifyFlags> |
Ian Rogers | 29501cf | 2014-02-07 21:00:25 -0800 | [diff] [blame] | 526 | inline bool Object::CasField64(MemberOffset field_offset, int64_t old_value, int64_t new_value) { |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 527 | if (kCheckTransaction) { |
| 528 | DCHECK_EQ(kTransactionActive, Runtime::Current()->IsActiveTransaction()); |
| 529 | } |
| 530 | if (kTransactionActive) { |
| 531 | Runtime::Current()->RecordWriteField64(this, field_offset, old_value, true); |
| 532 | } |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 533 | if (kVerifyFlags & kVerifyThis) { |
| 534 | VerifyObject(this); |
| 535 | } |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 536 | byte* raw_addr = reinterpret_cast<byte*>(this) + field_offset.Int32Value(); |
Ian Rogers | 29501cf | 2014-02-07 21:00:25 -0800 | [diff] [blame] | 537 | volatile int64_t* addr = reinterpret_cast<volatile int64_t*>(raw_addr); |
| 538 | return QuasiAtomic::Cas64(old_value, new_value, addr); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 539 | } |
| 540 | |
Hiroshi Yamauchi | 6e83c17 | 2014-05-01 21:25:41 -0700 | [diff] [blame] | 541 | template<class T, VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption, |
| 542 | bool kIsVolatile> |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 543 | inline T* Object::GetFieldObject(MemberOffset field_offset) { |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 544 | if (kVerifyFlags & kVerifyThis) { |
| 545 | VerifyObject(this); |
| 546 | } |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 547 | byte* raw_addr = reinterpret_cast<byte*>(this) + field_offset.Int32Value(); |
| 548 | HeapReference<T>* objref_addr = reinterpret_cast<HeapReference<T>*>(raw_addr); |
Hiroshi Yamauchi | 6e83c17 | 2014-05-01 21:25:41 -0700 | [diff] [blame] | 549 | T* result = ReadBarrier::Barrier<T, kReadBarrierOption>(this, field_offset, objref_addr); |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 550 | if (kIsVolatile) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 551 | QuasiAtomic::MembarLoadLoad(); // Ensure loads don't re-order. |
| 552 | } |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 553 | if (kVerifyFlags & kVerifyReads) { |
| 554 | VerifyObject(result); |
| 555 | } |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 556 | return result; |
| 557 | } |
| 558 | |
Hiroshi Yamauchi | 6e83c17 | 2014-05-01 21:25:41 -0700 | [diff] [blame] | 559 | template<class T, VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption> |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 560 | inline T* Object::GetFieldObjectVolatile(MemberOffset field_offset) { |
Hiroshi Yamauchi | 6e83c17 | 2014-05-01 21:25:41 -0700 | [diff] [blame] | 561 | return GetFieldObject<T, kVerifyFlags, kReadBarrierOption, true>(field_offset); |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 562 | } |
| 563 | |
| 564 | template<bool kTransactionActive, bool kCheckTransaction, VerifyObjectFlags kVerifyFlags, |
| 565 | bool kIsVolatile> |
| 566 | inline void Object::SetFieldObjectWithoutWriteBarrier(MemberOffset field_offset, |
| 567 | Object* new_value) { |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 568 | if (kCheckTransaction) { |
| 569 | DCHECK_EQ(kTransactionActive, Runtime::Current()->IsActiveTransaction()); |
| 570 | } |
| 571 | if (kTransactionActive) { |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 572 | mirror::Object* obj; |
| 573 | if (kIsVolatile) { |
| 574 | obj = GetFieldObjectVolatile<Object>(field_offset); |
| 575 | } else { |
| 576 | obj = GetFieldObject<Object>(field_offset); |
| 577 | } |
| 578 | Runtime::Current()->RecordWriteFieldReference(this, field_offset, obj, true); |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 579 | } |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 580 | if (kVerifyFlags & kVerifyThis) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 581 | VerifyObject(this); |
| 582 | } |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 583 | if (kVerifyFlags & kVerifyWrites) { |
| 584 | VerifyObject(new_value); |
| 585 | } |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 586 | byte* raw_addr = reinterpret_cast<byte*>(this) + field_offset.Int32Value(); |
| 587 | HeapReference<Object>* objref_addr = reinterpret_cast<HeapReference<Object>*>(raw_addr); |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 588 | if (kIsVolatile) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 589 | QuasiAtomic::MembarStoreStore(); // Ensure this store occurs after others in the queue. |
| 590 | objref_addr->Assign(new_value); |
| 591 | QuasiAtomic::MembarStoreLoad(); // Ensure this store occurs before any loads. |
| 592 | } else { |
| 593 | objref_addr->Assign(new_value); |
| 594 | } |
| 595 | } |
| 596 | |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 597 | template<bool kTransactionActive, bool kCheckTransaction, VerifyObjectFlags kVerifyFlags, |
| 598 | bool kIsVolatile> |
| 599 | inline void Object::SetFieldObject(MemberOffset field_offset, Object* new_value) { |
| 600 | SetFieldObjectWithoutWriteBarrier<kTransactionActive, kCheckTransaction, kVerifyFlags, |
| 601 | kIsVolatile>(field_offset, new_value); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 602 | if (new_value != nullptr) { |
| 603 | CheckFieldAssignment(field_offset, new_value); |
| 604 | Runtime::Current()->GetHeap()->WriteBarrierField(this, field_offset, new_value); |
| 605 | } |
| 606 | } |
| 607 | |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 608 | template<bool kTransactionActive, bool kCheckTransaction, VerifyObjectFlags kVerifyFlags> |
| 609 | inline void Object::SetFieldObjectVolatile(MemberOffset field_offset, Object* new_value) { |
| 610 | SetFieldObject<kTransactionActive, kCheckTransaction, kVerifyFlags, true>(field_offset, |
| 611 | new_value); |
| 612 | } |
| 613 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 614 | template <VerifyObjectFlags kVerifyFlags> |
| 615 | inline HeapReference<Object>* Object::GetFieldObjectReferenceAddr(MemberOffset field_offset) { |
| 616 | if (kVerifyFlags & kVerifyThis) { |
| 617 | VerifyObject(this); |
| 618 | } |
| 619 | return reinterpret_cast<HeapReference<Object>*>(reinterpret_cast<byte*>(this) + |
| 620 | field_offset.Int32Value()); |
| 621 | } |
| 622 | |
| 623 | template<bool kTransactionActive, bool kCheckTransaction, VerifyObjectFlags kVerifyFlags> |
| 624 | inline bool Object::CasFieldObject(MemberOffset field_offset, Object* old_value, |
| 625 | Object* new_value) { |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 626 | if (kCheckTransaction) { |
| 627 | DCHECK_EQ(kTransactionActive, Runtime::Current()->IsActiveTransaction()); |
| 628 | } |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 629 | if (kVerifyFlags & kVerifyThis) { |
| 630 | VerifyObject(this); |
| 631 | } |
| 632 | if (kVerifyFlags & kVerifyWrites) { |
| 633 | VerifyObject(new_value); |
| 634 | } |
| 635 | if (kVerifyFlags & kVerifyReads) { |
| 636 | VerifyObject(old_value); |
| 637 | } |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 638 | if (kTransactionActive) { |
| 639 | Runtime::Current()->RecordWriteFieldReference(this, field_offset, old_value, true); |
| 640 | } |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 641 | byte* raw_addr = reinterpret_cast<byte*>(this) + field_offset.Int32Value(); |
Ian Rogers | 29501cf | 2014-02-07 21:00:25 -0800 | [diff] [blame] | 642 | volatile int32_t* addr = reinterpret_cast<volatile int32_t*>(raw_addr); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 643 | HeapReference<Object> old_ref(HeapReference<Object>::FromMirrorPtr(old_value)); |
| 644 | HeapReference<Object> new_ref(HeapReference<Object>::FromMirrorPtr(new_value)); |
| 645 | bool success = __sync_bool_compare_and_swap(addr, old_ref.reference_, new_ref.reference_); |
| 646 | if (success) { |
| 647 | Runtime::Current()->GetHeap()->WriteBarrierField(this, field_offset, new_value); |
| 648 | } |
| 649 | return success; |
| 650 | } |
| 651 | |
Mathieu Chartier | 407f702 | 2014-02-18 14:37:05 -0800 | [diff] [blame] | 652 | template<bool kVisitClass, bool kIsStatic, typename Visitor> |
| 653 | inline void Object::VisitFieldsReferences(uint32_t ref_offsets, const Visitor& visitor) { |
| 654 | if (LIKELY(ref_offsets != CLASS_WALK_SUPER)) { |
| 655 | if (!kVisitClass) { |
| 656 | // Mask out the class from the reference offsets. |
| 657 | ref_offsets ^= kWordHighBitMask; |
| 658 | } |
| 659 | DCHECK_EQ(ClassOffset().Uint32Value(), 0U); |
| 660 | // Found a reference offset bitmap. Visit the specified offsets. |
| 661 | while (ref_offsets != 0) { |
| 662 | size_t right_shift = CLZ(ref_offsets); |
| 663 | MemberOffset field_offset = CLASS_OFFSET_FROM_CLZ(right_shift); |
| 664 | visitor(this, field_offset, kIsStatic); |
| 665 | ref_offsets &= ~(CLASS_HIGH_BIT >> right_shift); |
| 666 | } |
| 667 | } else { |
| 668 | // There is no reference offset bitmap. In the non-static case, walk up the class |
| 669 | // inheritance hierarchy and find reference offsets the hard way. In the static case, just |
| 670 | // consider this class. |
| 671 | for (mirror::Class* klass = kIsStatic ? AsClass() : GetClass(); klass != nullptr; |
| 672 | klass = kIsStatic ? nullptr : klass->GetSuperClass()) { |
| 673 | size_t num_reference_fields = |
| 674 | kIsStatic ? klass->NumReferenceStaticFields() : klass->NumReferenceInstanceFields(); |
| 675 | for (size_t i = 0; i < num_reference_fields; ++i) { |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 676 | mirror::ArtField* field = kIsStatic ? klass->GetStaticField(i) : klass->GetInstanceField(i); |
Mathieu Chartier | 407f702 | 2014-02-18 14:37:05 -0800 | [diff] [blame] | 677 | MemberOffset field_offset = field->GetOffset(); |
| 678 | // TODO: Do a simpler check? |
| 679 | if (!kVisitClass && UNLIKELY(field_offset.Uint32Value() == ClassOffset().Uint32Value())) { |
| 680 | continue; |
| 681 | } |
| 682 | visitor(this, field_offset, kIsStatic); |
| 683 | } |
| 684 | } |
| 685 | } |
| 686 | } |
| 687 | |
| 688 | template<bool kVisitClass, typename Visitor> |
| 689 | inline void Object::VisitInstanceFieldsReferences(mirror::Class* klass, const Visitor& visitor) { |
| 690 | VisitFieldsReferences<kVisitClass, false>( |
| 691 | klass->GetReferenceInstanceOffsets<kVerifyNone>(), visitor); |
| 692 | } |
| 693 | |
| 694 | template<bool kVisitClass, typename Visitor> |
| 695 | inline void Object::VisitStaticFieldsReferences(mirror::Class* klass, const Visitor& visitor) { |
| 696 | klass->VisitFieldsReferences<kVisitClass, true>( |
| 697 | klass->GetReferenceStaticOffsets<kVerifyNone>(), visitor); |
| 698 | } |
| 699 | |
| 700 | template <const bool kVisitClass, VerifyObjectFlags kVerifyFlags, typename Visitor, |
| 701 | typename JavaLangRefVisitor> |
| 702 | inline void Object::VisitReferences(const Visitor& visitor, |
| 703 | const JavaLangRefVisitor& ref_visitor) { |
| 704 | mirror::Class* klass = GetClass<kVerifyFlags>(); |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 705 | if (klass->IsVariableSize()) { |
| 706 | if (klass->IsClassClass()) { |
| 707 | AsClass<kVerifyNone>()->VisitReferences<kVisitClass>(klass, visitor); |
| 708 | } else { |
| 709 | DCHECK(klass->IsArrayClass<kVerifyFlags>()); |
| 710 | if (klass->IsObjectArrayClass<kVerifyNone>()) { |
| 711 | AsObjectArray<mirror::Object, kVerifyNone>()->VisitReferences<kVisitClass>(visitor); |
| 712 | } else if (kVisitClass) { |
| 713 | visitor(this, ClassOffset(), false); |
| 714 | } |
Mathieu Chartier | 407f702 | 2014-02-18 14:37:05 -0800 | [diff] [blame] | 715 | } |
| 716 | } else { |
Mathieu Chartier | 580a8df | 2014-03-26 15:15:57 -0700 | [diff] [blame] | 717 | VisitInstanceFieldsReferences<kVisitClass>(klass, visitor); |
| 718 | if (UNLIKELY(klass->IsReferenceClass<kVerifyNone>())) { |
Mathieu Chartier | 407f702 | 2014-02-18 14:37:05 -0800 | [diff] [blame] | 719 | ref_visitor(klass, AsReference()); |
| 720 | } |
| 721 | } |
| 722 | } |
| 723 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 724 | } // namespace mirror |
| 725 | } // namespace art |
| 726 | |
Brian Carlstrom | fc0e321 | 2013-07-17 14:40:12 -0700 | [diff] [blame] | 727 | #endif // ART_RUNTIME_MIRROR_OBJECT_INL_H_ |