68 }
69
70 inline void Atomic::dec_ptr(volatile void* dest)
71 {
72 add_ptr(-1, dest);
73 }
74
75 inline jint Atomic::xchg (jint exchange_value, volatile jint* dest)
76 {
77 jint res = __sync_lock_test_and_set (dest, exchange_value);
78 FULL_MEM_BARRIER;
79 return res;
80 }
81
82 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest)
83 {
84 return (void *) xchg_ptr((intptr_t) exchange_value,
85 (volatile intptr_t*) dest);
86 }
87
88 template <typename T> T generic_cmpxchg(T exchange_value, volatile T* dest,
89 T compare_value, cmpxchg_memory_order order)
90 {
91 if (order == memory_order_relaxed) {
92 T value = compare_value;
93 __atomic_compare_exchange(dest, &value, &exchange_value, /*weak*/false,
94 __ATOMIC_RELAXED, __ATOMIC_RELAXED);
95 return value;
96 } else {
97 return __sync_val_compare_and_swap(dest, compare_value, exchange_value);
98 }
99 }
100
101 #define VM_HAS_SPECIALIZED_CMPXCHG_BYTE
102 inline jbyte Atomic::cmpxchg (jbyte exchange_value, volatile jbyte* dest, jbyte compare_value, cmpxchg_memory_order order)
103 {
104 return generic_cmpxchg(exchange_value, dest, compare_value, order);
105 }
106
107 inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value, cmpxchg_memory_order order)
108 {
109 return generic_cmpxchg(exchange_value, dest, compare_value, order);
110 }
111
112 inline void Atomic::store (jlong store_value, jlong* dest) { *dest = store_value; }
113 inline void Atomic::store (jlong store_value, volatile jlong* dest) { *dest = store_value; }
114
115 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest)
116 {
117 return __sync_add_and_fetch(dest, add_value);
118 }
119
120 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest)
121 {
122 return (void *) add_ptr(add_value, (volatile intptr_t *) dest);
123 }
124
125 inline void Atomic::inc_ptr(volatile intptr_t* dest)
126 {
127 add_ptr(1, dest);
128 }
129
130 inline void Atomic::dec_ptr(volatile intptr_t* dest)
131 {
132 add_ptr(-1, dest);
133 }
134
135 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest)
136 {
137 intptr_t res = __sync_lock_test_and_set (dest, exchange_value);
138 FULL_MEM_BARRIER;
139 return res;
140 }
141
142 inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value, cmpxchg_memory_order order)
143 {
144 return generic_cmpxchg(exchange_value, dest, compare_value, order);
145 }
146
147 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value, cmpxchg_memory_order order)
148 {
149 return generic_cmpxchg(exchange_value, dest, compare_value, order);
150 }
151
152 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value, cmpxchg_memory_order order)
153 {
154 return (void *) cmpxchg_ptr((intptr_t) exchange_value,
155 (volatile intptr_t*) dest,
156 (intptr_t) compare_value,
157 order);
158 }
159
160 inline jlong Atomic::load(const volatile jlong* src) { return *src; }
161
162 #endif // OS_CPU_LINUX_AARCH64_VM_ATOMIC_LINUX_AARCH64_HPP
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68 }
69
70 inline void Atomic::dec_ptr(volatile void* dest)
71 {
72 add_ptr(-1, dest);
73 }
74
75 inline jint Atomic::xchg (jint exchange_value, volatile jint* dest)
76 {
77 jint res = __sync_lock_test_and_set (dest, exchange_value);
78 FULL_MEM_BARRIER;
79 return res;
80 }
81
82 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest)
83 {
84 return (void *) xchg_ptr((intptr_t) exchange_value,
85 (volatile intptr_t*) dest);
86 }
87
88 template<size_t byte_size>
89 template<typename T>
90 inline T Atomic::PlatformCmpxchg<byte_size>::operator()(T exchange_value,
91 T volatile* dest,
92 T compare_value,
93 cmpxchg_memory_order) const {
94 STATIC_ASSERT(byte_size == sizeof(T));
95 if (order == memory_order_relaxed) {
96 T value = compare_value;
97 __atomic_compare_exchange(dest, &value, &exchange_value, /*weak*/false,
98 __ATOMIC_RELAXED, __ATOMIC_RELAXED);
99 return value;
100 } else {
101 return __sync_val_compare_and_swap(dest, compare_value, exchange_value);
102 }
103 }
104
105 inline void Atomic::store (jlong store_value, jlong* dest) { *dest = store_value; }
106 inline void Atomic::store (jlong store_value, volatile jlong* dest) { *dest = store_value; }
107
108 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest)
109 {
110 return __sync_add_and_fetch(dest, add_value);
111 }
112
113 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest)
114 {
115 return (void *) add_ptr(add_value, (volatile intptr_t *) dest);
116 }
117
118 inline void Atomic::inc_ptr(volatile intptr_t* dest)
119 {
120 add_ptr(1, dest);
121 }
122
123 inline void Atomic::dec_ptr(volatile intptr_t* dest)
124 {
125 add_ptr(-1, dest);
126 }
127
128 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest)
129 {
130 intptr_t res = __sync_lock_test_and_set (dest, exchange_value);
131 FULL_MEM_BARRIER;
132 return res;
133 }
134
135 inline jlong Atomic::load(const volatile jlong* src) { return *src; }
136
137 #endif // OS_CPU_LINUX_AARCH64_VM_ATOMIC_LINUX_AARCH64_HPP
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