reactos/sdk/include/c++/stlport/stl/_sparc_atomic.h

   1
   2 // Currently, SUN CC requires object file
   3
   4 #if defined (__GNUC__)
   5
   6 /*
   7 **  int _STLP_atomic_exchange (__stl_atomic_t *pvalue, __stl_atomic_t value)
   8 */
   9
  10 #  if defined(__sparc_v9__) || defined (__sparcv9)
  11
  12 #    ifdef __arch64__
  13
  14 #      define _STLP_EXCH_ASM  asm volatile ("casx [%3], %4, %0 ;  membar  #LoadLoad | #LoadStore " : \
  15                    "=r" (_L_value2), "=m" (*_L_pvalue1) : \
  16                    "m" (*_L_pvalue1), "r" (_L_pvalue1), "r" (_L_value1), "0" (_L_value2) )
  17
  18 #    else /* __arch64__ */
  19
  20 #      define _STLP_EXCH_ASM  asm volatile ("cas [%3], %4, %0" : \
  21                    "=r" (_L_value2), "=m" (*_L_pvalue1) : \
  22                    "m" (*_L_pvalue1), "r" (_L_pvalue1), "r" (_L_value1), "0" (_L_value2) )
  23 #    endif
  24
  25 #  else /* __sparc_v9__ */
  26
  27 #    define _STLP_EXCH_ASM asm volatile ("swap [%3], %0 " : \
  28                                        "=r" (_L_value2), "=m" (*_L_pvalue1) : \
  29                                        "m" (*_L_pvalue1), "r" (_L_pvalue1),  "0" (_L_value2) )
  30 #  endif
  31
  32
  33 #  define _STLP_ATOMIC_EXCHANGE(__pvalue1, __value2) \
  34  ({  register volatile __stl_atomic_t *_L_pvalue1 = __pvalue1; \
  35      register __stl_atomic_t _L_value1, _L_value2 =  __value2 ; \
  36      do { _L_value1 = *_L_pvalue1; _STLP_EXCH_ASM; } while ( _L_value1 != _L_value2 ) ; \
  37      _L_value1; })
  38
  39 #  define _STLP_ATOMIC_INCREMENT(__pvalue1) \
  40  ({  register volatile __stl_atomic_t *_L_pvalue1 = __pvalue1; \
  41     register __stl_atomic_t _L_value1, _L_value2; \
  42     do { _L_value1 = *_L_pvalue1;  _L_value2 = _L_value1+1; _STLP_EXCH_ASM; } while ( _L_value1 != _L_value2 ) ; \
  43     (_L_value2 + 1); })
  44
  45 #  define _STLP_ATOMIC_DECREMENT(__pvalue1) \
  46  ({  register volatile __stl_atomic_t *_L_pvalue1 = __pvalue1; \
  47     register __stl_atomic_t _L_value1, _L_value2; \
  48     do { _L_value1 = *_L_pvalue1;  _L_value2 = _L_value1-1; _STLP_EXCH_ASM; } while ( _L_value1 != _L_value2 ) ; \
  49     (_L_value2 - 1); })
  50
  51 #  elif ! defined (_STLP_NO_EXTERN_INLINE)
  52
  53 extern "C" __stl_atomic_t _STLP_atomic_exchange(__stl_atomic_t * __x, __stl_atomic_t __v);
  54 extern "C" void _STLP_atomic_decrement(__stl_atomic_t* i);
  55 extern "C" void _STLP_atomic_increment(__stl_atomic_t* i);
  56
  57 #    define _STLP_ATOMIC_INCREMENT(__x)           _STLP_atomic_increment((__stl_atomic_t*)__x)
  58 #    define _STLP_ATOMIC_DECREMENT(__x)           _STLP_atomic_decrement((__stl_atomic_t*)__x)
  59 #    define _STLP_ATOMIC_EXCHANGE(__x, __y)       _STLP_atomic_exchange((__stl_atomic_t*)__x, (__stl_atomic_t)__y)
  60
  61 #endif