65
66 static bool is_strong_access(DecoratorSet decorators) {
67 return (decorators & (ON_WEAK_OOP_REF | ON_PHANTOM_OOP_REF)) == 0;
68 }
69
70 static bool is_weak_access(DecoratorSet decorators) {
71 return (decorators & ON_WEAK_OOP_REF) != 0;
72 }
73
74 static bool is_phantom_access(DecoratorSet decorators) {
75 return (decorators & ON_PHANTOM_OOP_REF) != 0;
76 }
77
78 static bool is_native_access(DecoratorSet decorators) {
79 return (decorators & IN_NATIVE) != 0;
80 }
81
82 void print_on(outputStream* st) const override;
83
84 template <class T>
85 inline void arraycopy_barrier(T* src, T* dst, size_t count);
86
87 // Support for optimizing compilers to call the barrier set on slow path allocations
88 // that did not enter a TLAB. Used for e.g. ReduceInitialCardMarks to take any
89 // compensating actions to restore card-marks that might otherwise be incorrectly elided.
90 void on_slowpath_allocation_exit(JavaThread* thread, oop new_obj) override;
91 void on_thread_create(Thread* thread) override;
92 void on_thread_destroy(Thread* thread) override;
93 void on_thread_attach(Thread* thread) override;
94 void on_thread_detach(Thread* thread) override;
95
96 template <DecoratorSet decorators, typename T>
97 inline void satb_barrier(T* field);
98 inline void satb_enqueue(oop value);
99
100 inline void keep_alive_if_weak(DecoratorSet decorators, oop value);
101
102 inline void enqueue(oop obj, bool filter = true);
103
104 inline oop load_reference_barrier(oop obj);
105
159 template <typename T>
160 static void oop_store_in_heap(T* addr, oop value);
161 static void oop_store_in_heap_at(oop base, ptrdiff_t offset, oop value);
162
163 template <typename T>
164 static oop oop_atomic_cmpxchg_in_heap(T* addr, oop compare_value, oop new_value);
165 static oop oop_atomic_cmpxchg_in_heap_at(oop base, ptrdiff_t offset, oop compare_value, oop new_value);
166
167 template <typename T>
168 static oop oop_atomic_xchg_in_heap(T* addr, oop new_value);
169 static oop oop_atomic_xchg_in_heap_at(oop base, ptrdiff_t offset, oop new_value);
170
171 template <typename T>
172 static OopCopyResult oop_arraycopy_in_heap(arrayOop src_obj, size_t src_offset_in_bytes, T* src_raw,
173 arrayOop dst_obj, size_t dst_offset_in_bytes, T* dst_raw,
174 size_t length);
175
176 // Clone barrier support
177 static void clone_in_heap(oop src, oop dst, size_t size);
178
179 // Support for concurrent roots evacuation, updating and weak roots clearing
180 template <typename T>
181 static oop oop_load_not_in_heap(T* addr);
182
183 // Support for concurrent roots marking
184 template <typename T>
185 static void oop_store_not_in_heap(T* addr, oop value);
186
187 template <typename T>
188 static oop oop_atomic_cmpxchg_not_in_heap(T* addr, oop compare_value, oop new_value);
189
190 template <typename T>
191 static oop oop_atomic_xchg_not_in_heap(T* addr, oop new_value);
192 };
193
194 };
195
196 template<>
197 struct BarrierSet::GetName<ShenandoahBarrierSet> {
198 static const BarrierSet::Name value = BarrierSet::ShenandoahBarrierSet;
|
65
66 static bool is_strong_access(DecoratorSet decorators) {
67 return (decorators & (ON_WEAK_OOP_REF | ON_PHANTOM_OOP_REF)) == 0;
68 }
69
70 static bool is_weak_access(DecoratorSet decorators) {
71 return (decorators & ON_WEAK_OOP_REF) != 0;
72 }
73
74 static bool is_phantom_access(DecoratorSet decorators) {
75 return (decorators & ON_PHANTOM_OOP_REF) != 0;
76 }
77
78 static bool is_native_access(DecoratorSet decorators) {
79 return (decorators & IN_NATIVE) != 0;
80 }
81
82 void print_on(outputStream* st) const override;
83
84 template <class T>
85 inline void arraycopy_barrier(T* src, T* dst, size_t count, bool dest_uninit);
86
87 // Support for optimizing compilers to call the barrier set on slow path allocations
88 // that did not enter a TLAB. Used for e.g. ReduceInitialCardMarks to take any
89 // compensating actions to restore card-marks that might otherwise be incorrectly elided.
90 void on_slowpath_allocation_exit(JavaThread* thread, oop new_obj) override;
91 void on_thread_create(Thread* thread) override;
92 void on_thread_destroy(Thread* thread) override;
93 void on_thread_attach(Thread* thread) override;
94 void on_thread_detach(Thread* thread) override;
95
96 template <DecoratorSet decorators, typename T>
97 inline void satb_barrier(T* field);
98 inline void satb_enqueue(oop value);
99
100 inline void keep_alive_if_weak(DecoratorSet decorators, oop value);
101
102 inline void enqueue(oop obj, bool filter = true);
103
104 inline oop load_reference_barrier(oop obj);
105
159 template <typename T>
160 static void oop_store_in_heap(T* addr, oop value);
161 static void oop_store_in_heap_at(oop base, ptrdiff_t offset, oop value);
162
163 template <typename T>
164 static oop oop_atomic_cmpxchg_in_heap(T* addr, oop compare_value, oop new_value);
165 static oop oop_atomic_cmpxchg_in_heap_at(oop base, ptrdiff_t offset, oop compare_value, oop new_value);
166
167 template <typename T>
168 static oop oop_atomic_xchg_in_heap(T* addr, oop new_value);
169 static oop oop_atomic_xchg_in_heap_at(oop base, ptrdiff_t offset, oop new_value);
170
171 template <typename T>
172 static OopCopyResult oop_arraycopy_in_heap(arrayOop src_obj, size_t src_offset_in_bytes, T* src_raw,
173 arrayOop dst_obj, size_t dst_offset_in_bytes, T* dst_raw,
174 size_t length);
175
176 // Clone barrier support
177 static void clone_in_heap(oop src, oop dst, size_t size);
178
179 // Valhalla support
180 static void value_copy_in_heap(const ValuePayload& src, const ValuePayload& dst);
181 static void value_store_null_in_heap(const ValuePayload& dst);
182
183 // Support for concurrent roots evacuation, updating and weak roots clearing
184 template <typename T>
185 static oop oop_load_not_in_heap(T* addr);
186
187 // Support for concurrent roots marking
188 template <typename T>
189 static void oop_store_not_in_heap(T* addr, oop value);
190
191 template <typename T>
192 static oop oop_atomic_cmpxchg_not_in_heap(T* addr, oop compare_value, oop new_value);
193
194 template <typename T>
195 static oop oop_atomic_xchg_not_in_heap(T* addr, oop new_value);
196 };
197
198 };
199
200 template<>
201 struct BarrierSet::GetName<ShenandoahBarrierSet> {
202 static const BarrierSet::Name value = BarrierSet::ShenandoahBarrierSet;
|