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comparison src/os_cpu/solaris_x86/vm/atomic_solaris_x86.inline.hpp @ 894:665be97e8704

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6863420: os::javaTimeNanos() go backward on Solaris x86 Summary: Use new atomic long load method Atomic::load() to load max_hrtime. Reviewed-by: never, ysr, johnc, phh, dcubed, acorn
author kvn
date Sun, 26 Jul 2009 16:40:14 -0700
parents a61af66fc99e
children 89e0543e1737
comparison
equal deleted inserted replaced
893:dd0a4e1e219b 894:665be97e8704
97 97
98 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) { 98 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) {
99 return (void*)_Atomic_cmpxchg_long((jlong)exchange_value, (volatile jlong*)dest, (jlong)compare_value, (int) os::is_MP()); 99 return (void*)_Atomic_cmpxchg_long((jlong)exchange_value, (volatile jlong*)dest, (jlong)compare_value, (int) os::is_MP());
100 } 100 }
101 101
102 inline jlong Atomic::load(volatile jlong* src) { return *src; }
103
102 #else // !AMD64 104 #else // !AMD64
103 105
104 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { 106 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) {
105 return (intptr_t)add((jint)add_value, (volatile jint*)dest); 107 return (intptr_t)add((jint)add_value, (volatile jint*)dest);
106 } 108 }
129 } 131 }
130 132
131 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) { 133 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) {
132 return (void*)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value); 134 return (void*)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value);
133 } 135 }
136
137 extern "C" void _Atomic_load_long(volatile jlong* src, volatile jlong* dst);
138
139 inline jlong Atomic::load(volatile jlong* src) {
140 volatile jlong dest;
141 _Atomic_load_long(src, &dest);
142 return dest;
143 }
144
134 #endif // AMD64 145 #endif // AMD64
135 146
136 #ifdef _GNU_SOURCE 147 #ifdef _GNU_SOURCE
137 // Add a lock prefix to an instruction on an MP machine 148 // Add a lock prefix to an instruction on an MP machine
138 #define LOCK_IF_MP(mp) "cmp $0, " #mp "; je 1f; lock; 1: " 149 #define LOCK_IF_MP(mp) "cmp $0, " #mp "; je 1f; lock; 1: "