99
100 inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) {
101 return (jint)(*os::atomic_xchg_func)(exchange_value, dest);
102 }
103
104 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) {
105 return (intptr_t)(os::atomic_xchg_ptr_func)(exchange_value, dest);
106 }
107
108 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) {
109 return (void *)(os::atomic_xchg_ptr_func)((intptr_t)exchange_value, (volatile intptr_t*)dest);
110 }
111
112 #define DEFINE_STUB_CMPXCHG(ByteSize, StubType, StubName) \
113 template<> \
114 template<typename T> \
115 inline T Atomic::PlatformCmpxchg<ByteSize>::operator()(T exchange_value, \
116 T volatile* dest, \
117 T compare_value, \
118 cmpxchg_memory_order order) const { \
119 return cmpxchg_using_stub<StubType>(StubName, exchange_value, dest, compare_value); \
120 }
121
122 DEFINE_STUB_CMPXCHG(1, jbyte, os::atomic_cmpxchg_byte_func)
123 DEFINE_STUB_CMPXCHG(4, jint, os::atomic_cmpxchg_func)
124 DEFINE_STUB_CMPXCHG(8, jlong, os::atomic_cmpxchg_long_func)
125
126 #undef DEFINE_STUB_CMPXCHG
127
128 inline jlong Atomic::load(const volatile jlong* src) { return *src; }
129
130 #else // !AMD64
131
132 inline jint Atomic::add (jint add_value, volatile jint* dest) {
133 __asm {
134 mov edx, dest;
135 mov eax, add_value;
136 mov ecx, eax;
137 lock xadd dword ptr [edx], eax;
138 add eax, ecx;
139 }
140 }
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99
100 inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) {
101 return (jint)(*os::atomic_xchg_func)(exchange_value, dest);
102 }
103
104 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) {
105 return (intptr_t)(os::atomic_xchg_ptr_func)(exchange_value, dest);
106 }
107
108 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) {
109 return (void *)(os::atomic_xchg_ptr_func)((intptr_t)exchange_value, (volatile intptr_t*)dest);
110 }
111
112 #define DEFINE_STUB_CMPXCHG(ByteSize, StubType, StubName) \
113 template<> \
114 template<typename T> \
115 inline T Atomic::PlatformCmpxchg<ByteSize>::operator()(T exchange_value, \
116 T volatile* dest, \
117 T compare_value, \
118 cmpxchg_memory_order order) const { \
119 STATIC_ASSERT(ByteSize == sizeof(T)); \
120 return cmpxchg_using_helper<StubType>(StubName, exchange_value, dest, compare_value); \
121 }
122
123 DEFINE_STUB_CMPXCHG(1, jbyte, os::atomic_cmpxchg_byte_func)
124 DEFINE_STUB_CMPXCHG(4, jint, os::atomic_cmpxchg_func)
125 DEFINE_STUB_CMPXCHG(8, jlong, os::atomic_cmpxchg_long_func)
126
127 #undef DEFINE_STUB_CMPXCHG
128
129 inline jlong Atomic::load(const volatile jlong* src) { return *src; }
130
131 #else // !AMD64
132
133 inline jint Atomic::add (jint add_value, volatile jint* dest) {
134 __asm {
135 mov edx, dest;
136 mov eax, add_value;
137 mov ecx, eax;
138 lock xadd dword ptr [edx], eax;
139 add eax, ecx;
140 }
141 }
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