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// Currently, SUN CC requires object file
#if defined (__GNUC__)
/*
** int _STLP_atomic_exchange (__stl_atomic_t *pvalue, __stl_atomic_t value)
*/
# if defined(__sparc_v9__) || defined (__sparcv9)
# ifdef __arch64__
# define _STLP_EXCH_ASM asm volatile ("casx [%3], %4, %0 ; membar #LoadLoad | #LoadStore " : \
"=r" (_L_value2), "=m" (*_L_pvalue1) : \
"m" (*_L_pvalue1), "r" (_L_pvalue1), "r" (_L_value1), "0" (_L_value2) )
# else /* __arch64__ */
# define _STLP_EXCH_ASM asm volatile ("cas [%3], %4, %0" : \
"=r" (_L_value2), "=m" (*_L_pvalue1) : \
"m" (*_L_pvalue1), "r" (_L_pvalue1), "r" (_L_value1), "0" (_L_value2) )
# endif
# else /* __sparc_v9__ */
# define _STLP_EXCH_ASM asm volatile ("swap [%3], %0 " : \
"=r" (_L_value2), "=m" (*_L_pvalue1) : \
"m" (*_L_pvalue1), "r" (_L_pvalue1), "0" (_L_value2) )
# endif
# define _STLP_ATOMIC_EXCHANGE(__pvalue1, __value2) \
({ register volatile __stl_atomic_t *_L_pvalue1 = __pvalue1; \
register __stl_atomic_t _L_value1, _L_value2 = __value2 ; \
do { _L_value1 = *_L_pvalue1; _STLP_EXCH_ASM; } while ( _L_value1 != _L_value2 ) ; \
_L_value1; })
# define _STLP_ATOMIC_INCREMENT(__pvalue1) \
({ register volatile __stl_atomic_t *_L_pvalue1 = __pvalue1; \
register __stl_atomic_t _L_value1, _L_value2; \
do { _L_value1 = *_L_pvalue1; _L_value2 = _L_value1+1; _STLP_EXCH_ASM; } while ( _L_value1 != _L_value2 ) ; \
(_L_value2 + 1); })
# define _STLP_ATOMIC_DECREMENT(__pvalue1) \
({ register volatile __stl_atomic_t *_L_pvalue1 = __pvalue1; \
register __stl_atomic_t _L_value1, _L_value2; \
do { _L_value1 = *_L_pvalue1; _L_value2 = _L_value1-1; _STLP_EXCH_ASM; } while ( _L_value1 != _L_value2 ) ; \
(_L_value2 - 1); })
# elif ! defined (_STLP_NO_EXTERN_INLINE)
extern "C" __stl_atomic_t _STLP_atomic_exchange(__stl_atomic_t * __x, __stl_atomic_t __v);
extern "C" void _STLP_atomic_decrement(__stl_atomic_t* i);
extern "C" void _STLP_atomic_increment(__stl_atomic_t* i);
# define _STLP_ATOMIC_INCREMENT(__x) _STLP_atomic_increment((__stl_atomic_t*)__x)
# define _STLP_ATOMIC_DECREMENT(__x) _STLP_atomic_decrement((__stl_atomic_t*)__x)
# define _STLP_ATOMIC_EXCHANGE(__x, __y) _STLP_atomic_exchange((__stl_atomic_t*)__x, (__stl_atomic_t)__y)
# endif
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