release/src-rt-6.x.4708/linux/linux-2.6.36/arch/cris/include/arch-v10/arch/unistd.h

   1 #ifndef _ASM_CRIS_ARCH_UNISTD_H_
   2 #define _ASM_CRIS_ARCH_UNISTD_H_
   3
   4 /*
   5  * Don't remove the .ifnc tests; they are an insurance against
   6  * any hard-to-spot gcc register allocation bugs.
   7  */
   8 #define _syscall0(type,name) \
   9 type name(void) \
  10 { \
  11   register long __a __asm__ ("r10"); \
  12   register long __n_ __asm__ ("r9") = (__NR_##name); \
  13   __asm__ __volatile__ (".ifnc %0%1,$r10$r9\n\t" \
  14                         ".err\n\t" \
  15                         ".endif\n\t" \
  16                         "break 13" \
  17                         : "=r" (__a) \
  18                         : "r" (__n_)); \
  19   if (__a >= 0) \
  20      return (type) __a; \
  21   errno = -__a; \
  22   return (type) -1; \
  23 }
  24
  25 #define _syscall1(type,name,type1,arg1) \
  26 type name(type1 arg1) \
  27 { \
  28   register long __a __asm__ ("r10") = (long) arg1; \
  29   register long __n_ __asm__ ("r9") = (__NR_##name); \
  30   __asm__ __volatile__ (".ifnc %0%1,$r10$r9\n\t" \
  31                         ".err\n\t" \
  32                         ".endif\n\t" \
  33                         "break 13" \
  34                         : "=r" (__a) \
  35                         : "r" (__n_), "0" (__a)); \
  36   if (__a >= 0) \
  37      return (type) __a; \
  38   errno = -__a; \
  39   return (type) -1; \
  40 }
  41
  42 #define _syscall2(type,name,type1,arg1,type2,arg2) \
  43 type name(type1 arg1,type2 arg2) \
  44 { \
  45   register long __a __asm__ ("r10") = (long) arg1; \
  46   register long __b __asm__ ("r11") = (long) arg2; \
  47   register long __n_ __asm__ ("r9") = (__NR_##name); \
  48   __asm__ __volatile__ (".ifnc %0%1%3,$r10$r9$r11\n\t" \
  49                         ".err\n\t" \
  50                         ".endif\n\t" \
  51                         "break 13" \
  52                         : "=r" (__a) \
  53                         : "r" (__n_), "0" (__a), "r" (__b)); \
  54   if (__a >= 0) \
  55      return (type) __a; \
  56   errno = -__a; \
  57   return (type) -1; \
  58 }
  59
  60 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
  61 type name(type1 arg1,type2 arg2,type3 arg3) \
  62 { \
  63   register long __a __asm__ ("r10") = (long) arg1; \
  64   register long __b __asm__ ("r11") = (long) arg2; \
  65   register long __c __asm__ ("r12") = (long) arg3; \
  66   register long __n_ __asm__ ("r9") = (__NR_##name); \
  67   __asm__ __volatile__ (".ifnc %0%1%3%4,$r10$r9$r11$r12\n\t" \
  68                         ".err\n\t" \
  69                         ".endif\n\t" \
  70                         "break 13" \
  71                         : "=r" (__a) \
  72                         : "r" (__n_), "0" (__a), "r" (__b), "r" (__c)); \
  73   if (__a >= 0) \
  74      return (type) __a; \
  75   errno = -__a; \
  76   return (type) -1; \
  77 }
  78
  79 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
  80 type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
  81 { \
  82   register long __a __asm__ ("r10") = (long) arg1; \
  83   register long __b __asm__ ("r11") = (long) arg2; \
  84   register long __c __asm__ ("r12") = (long) arg3; \
  85   register long __d __asm__ ("r13") = (long) arg4; \
  86   register long __n_ __asm__ ("r9") = (__NR_##name); \
  87   __asm__ __volatile__ (".ifnc %0%1%3%4%5,$r10$r9$r11$r12$r13\n\t" \
  88                         ".err\n\t" \
  89                         ".endif\n\t" \
  90                         "break 13" \
  91                         : "=r" (__a) \
  92                         : "r" (__n_), "0" (__a), "r" (__b), \
  93                           "r" (__c), "r" (__d)); \
  94   if (__a >= 0) \
  95      return (type) __a; \
  96   errno = -__a; \
  97   return (type) -1; \
  98 }
  99
 100 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
 101           type5,arg5) \
 102 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
 103 { \
 104   register long __a __asm__ ("r10") = (long) arg1; \
 105   register long __b __asm__ ("r11") = (long) arg2; \
 106   register long __c __asm__ ("r12") = (long) arg3; \
 107   register long __d __asm__ ("r13") = (long) arg4; \
 108   register long __n_ __asm__ ("r9") = (__NR_##name); \
 109   __asm__ __volatile__ (".ifnc %0%1%3%4%5,$r10$r9$r11$r12$r13\n\t" \
 110                         ".err\n\t" \
 111                         ".endif\n\t" \
 112                         "move %6,$mof\n\t" \
 113                         "break 13" \
 114                         : "=r" (__a) \
 115                         : "r" (__n_), "0" (__a), "r" (__b), \
 116                           "r" (__c), "r" (__d), "g" (arg5)); \
 117   if (__a >= 0) \
 118      return (type) __a; \
 119   errno = -__a; \
 120   return (type) -1; \
 121 }
 122
 123 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
 124           type5,arg5,type6,arg6) \
 125 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \
 126 { \
 127   register long __a __asm__ ("r10") = (long) arg1; \
 128   register long __b __asm__ ("r11") = (long) arg2; \
 129   register long __c __asm__ ("r12") = (long) arg3; \
 130   register long __d __asm__ ("r13") = (long) arg4; \
 131   register long __n_ __asm__ ("r9") = (__NR_##name); \
 132   __asm__ __volatile__ (".ifnc %0%1%3%4%5,$r10$r9$r11$r12$r13\n\t" \
 133                         ".err\n\t" \
 134                         ".endif\n\t" \
 135                         "move %6,$mof\n\tmove %7,$srp\n\t" \
 136                         "break 13" \
 137                         : "=r" (__a) \
 138                         : "r" (__n_), "0" (__a), "r" (__b), \
 139                           "r" (__c), "r" (__d), "g" (arg5), "g" (arg6)\
 140                         : "srp"); \
 141   if (__a >= 0) \
 142      return (type) __a; \
 143   errno = -__a; \
 144   return (type) -1; \
 145 }
 146
 147 #endif