LXR linux/arch/cris/include/arch-v10/arch/unistd.h

   1#ifndef _ASM_CRIS_ARCH_UNISTD_H_
   2#define _ASM_CRIS_ARCH_UNISTD_H_
   3
   4/* XXX - _foo needs to be __foo, while __NR_bar could be _NR_bar. */
   5/*
   6 * Don't remove the .ifnc tests; they are an insurance against
   7 * any hard-to-spot gcc register allocation bugs.
   8 */
   9#define _syscall0(type,name) \
  10type name(void) \
  11{ \
  12  register long __a __asm__ ("r10"); \
  13  register long __n_ __asm__ ("r9") = (__NR_##name); \
  14  __asm__ __volatile__ (".ifnc %0%1,$r10$r9\n\t" \
  15                        ".err\n\t" \
  16                        ".endif\n\t" \
  17                        "break 13" \
  18                        : "=r" (__a) \
  19                        : "r" (__n_)); \
  20  if (__a >= 0) \
  21     return (type) __a; \
  22  errno = -__a; \
  23  return (type) -1; \
  24}
  25
  26#define _syscall1(type,name,type1,arg1) \
  27type name(type1 arg1) \
  28{ \
  29  register long __a __asm__ ("r10") = (long) arg1; \
  30  register long __n_ __asm__ ("r9") = (__NR_##name); \
  31  __asm__ __volatile__ (".ifnc %0%1,$r10$r9\n\t" \
  32                        ".err\n\t" \
  33                        ".endif\n\t" \
  34                        "break 13" \
  35                        : "=r" (__a) \
  36                        : "r" (__n_), "0" (__a)); \
  37  if (__a >= 0) \
  38     return (type) __a; \
  39  errno = -__a; \
  40  return (type) -1; \
  41}
  42
  43#define _syscall2(type,name,type1,arg1,type2,arg2) \
  44type name(type1 arg1,type2 arg2) \
  45{ \
  46  register long __a __asm__ ("r10") = (long) arg1; \
  47  register long __b __asm__ ("r11") = (long) arg2; \
  48  register long __n_ __asm__ ("r9") = (__NR_##name); \
  49  __asm__ __volatile__ (".ifnc %0%1%3,$r10$r9$r11\n\t" \
  50                        ".err\n\t" \
  51                        ".endif\n\t" \
  52                        "break 13" \
  53                        : "=r" (__a) \
  54                        : "r" (__n_), "0" (__a), "r" (__b)); \
  55  if (__a >= 0) \
  56     return (type) __a; \
  57  errno = -__a; \
  58  return (type) -1; \
  59}
  60
  61#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
  62type name(type1 arg1,type2 arg2,type3 arg3) \
  63{ \
  64  register long __a __asm__ ("r10") = (long) arg1; \
  65  register long __b __asm__ ("r11") = (long) arg2; \
  66  register long __c __asm__ ("r12") = (long) arg3; \
  67  register long __n_ __asm__ ("r9") = (__NR_##name); \
  68  __asm__ __volatile__ (".ifnc %0%1%3%4,$r10$r9$r11$r12\n\t" \
  69                        ".err\n\t" \
  70                        ".endif\n\t" \
  71                        "break 13" \
  72                        : "=r" (__a) \
  73                        : "r" (__n_), "0" (__a), "r" (__b), "r" (__c)); \
  74  if (__a >= 0) \
  75     return (type) __a; \
  76  errno = -__a; \
  77  return (type) -1; \
  78}
  79
  80#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
  81type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
  82{ \
  83  register long __a __asm__ ("r10") = (long) arg1; \
  84  register long __b __asm__ ("r11") = (long) arg2; \
  85  register long __c __asm__ ("r12") = (long) arg3; \
  86  register long __d __asm__ ("r13") = (long) arg4; \
  87  register long __n_ __asm__ ("r9") = (__NR_##name); \
  88  __asm__ __volatile__ (".ifnc %0%1%3%4%5,$r10$r9$r11$r12$r13\n\t" \
  89                        ".err\n\t" \
  90                        ".endif\n\t" \
  91                        "break 13" \
  92                        : "=r" (__a) \
  93                        : "r" (__n_), "0" (__a), "r" (__b), \
  94                          "r" (__c), "r" (__d)); \
  95  if (__a >= 0) \
  96     return (type) __a; \
  97  errno = -__a; \
  98  return (type) -1; \
  99} 
 100
 101#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
 102          type5,arg5) \
 103type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
 104{ \
 105  register long __a __asm__ ("r10") = (long) arg1; \
 106  register long __b __asm__ ("r11") = (long) arg2; \
 107  register long __c __asm__ ("r12") = (long) arg3; \
 108  register long __d __asm__ ("r13") = (long) arg4; \
 109  register long __n_ __asm__ ("r9") = (__NR_##name); \
 110  __asm__ __volatile__ (".ifnc %0%1%3%4%5,$r10$r9$r11$r12$r13\n\t" \
 111                        ".err\n\t" \
 112                        ".endif\n\t" \
 113                        "move %6,$mof\n\t" \
 114                        "break 13" \
 115                        : "=r" (__a) \
 116                        : "r" (__n_), "0" (__a), "r" (__b), \
 117                          "r" (__c), "r" (__d), "g" (arg5)); \
 118  if (__a >= 0) \
 119     return (type) __a; \
 120  errno = -__a; \
 121  return (type) -1; \
 122}
 123
 124#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
 125          type5,arg5,type6,arg6) \
 126type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \
 127{ \
 128  register long __a __asm__ ("r10") = (long) arg1; \
 129  register long __b __asm__ ("r11") = (long) arg2; \
 130  register long __c __asm__ ("r12") = (long) arg3; \
 131  register long __d __asm__ ("r13") = (long) arg4; \
 132  register long __n_ __asm__ ("r9") = (__NR_##name); \
 133  __asm__ __volatile__ (".ifnc %0%1%3%4%5,$r10$r9$r11$r12$r13\n\t" \
 134                        ".err\n\t" \
 135                        ".endif\n\t" \
 136                        "move %6,$mof\n\tmove %7,$srp\n\t" \
 137                        "break 13" \
 138                        : "=r" (__a) \
 139                        : "r" (__n_), "0" (__a), "r" (__b), \
 140                          "r" (__c), "r" (__d), "g" (arg5), "g" (arg6)\
 141                        : "srp"); \
 142  if (__a >= 0) \
 143     return (type) __a; \
 144  errno = -__a; \
 145  return (type) -1; \
 146}
 147
 148#endif
 149