| |
| // 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 |