LXR linux/arch/cris/include/arch-v32/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                        : "memory"); \
  21  if (__a >= 0) \
  22     return (type) __a; \
  23  errno = -__a; \
  24  return (type) -1; \
  25}
  26
  27#define _syscall1(type,name,type1,arg1) \
  28type name(type1 arg1) \
  29{ \
  30  register long __a __asm__ ("r10") = (long) arg1; \
  31  register long __n_ __asm__ ("r9") = (__NR_##name); \
  32  __asm__ __volatile__ (".ifnc %0%1,$r10$r9\n\t" \
  33                        ".err\n\t" \
  34                        ".endif\n\t" \
  35                        "break 13" \
  36                        : "=r" (__a) \
  37                        : "r" (__n_), "0" (__a) \
  38                        : "memory"); \
  39  if (__a >= 0) \
  40     return (type) __a; \
  41  errno = -__a; \
  42  return (type) -1; \
  43}
  44
  45#define _syscall2(type,name,type1,arg1,type2,arg2) \
  46type name(type1 arg1,type2 arg2) \
  47{ \
  48  register long __a __asm__ ("r10") = (long) arg1; \
  49  register long __b __asm__ ("r11") = (long) arg2; \
  50  register long __n_ __asm__ ("r9") = (__NR_##name); \
  51  __asm__ __volatile__ (".ifnc %0%1%3,$r10$r9$r11\n\t" \
  52                        ".err\n\t" \
  53                        ".endif\n\t" \
  54                        "break 13" \
  55                        : "=r" (__a) \
  56                        : "r" (__n_), "0" (__a), "r" (__b) \
  57                        : "memory"); \
  58  if (__a >= 0) \
  59     return (type) __a; \
  60  errno = -__a; \
  61  return (type) -1; \
  62}
  63
  64#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
  65type name(type1 arg1,type2 arg2,type3 arg3) \
  66{ \
  67  register long __a __asm__ ("r10") = (long) arg1; \
  68  register long __b __asm__ ("r11") = (long) arg2; \
  69  register long __c __asm__ ("r12") = (long) arg3; \
  70  register long __n_ __asm__ ("r9") = (__NR_##name); \
  71  __asm__ __volatile__ (".ifnc %0%1%3%4,$r10$r9$r11$r12\n\t" \
  72                        ".err\n\t" \
  73                        ".endif\n\t" \
  74                        "break 13" \
  75                        : "=r" (__a) \
  76                        : "r" (__n_), "0" (__a), "r" (__b), "r" (__c) \
  77                        : "memory"); \
  78  if (__a >= 0) \
  79     return (type) __a; \
  80  errno = -__a; \
  81  return (type) -1; \
  82}
  83
  84#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
  85type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
  86{ \
  87  register long __a __asm__ ("r10") = (long) arg1; \
  88  register long __b __asm__ ("r11") = (long) arg2; \
  89  register long __c __asm__ ("r12") = (long) arg3; \
  90  register long __d __asm__ ("r13") = (long) arg4; \
  91  register long __n_ __asm__ ("r9") = (__NR_##name); \
  92  __asm__ __volatile__ (".ifnc %0%1%3%4%5,$r10$r9$r11$r12$r13\n\t" \
  93                        ".err\n\t" \
  94                        ".endif\n\t" \
  95                        "break 13" \
  96                        : "=r" (__a) \
  97                        : "r" (__n_), "0" (__a), "r" (__b), \
  98                          "r" (__c), "r" (__d)\
  99                        : "memory"); \
 100  if (__a >= 0) \
 101     return (type) __a; \
 102  errno = -__a; \
 103  return (type) -1; \
 104}
 105
 106#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
 107          type5,arg5) \
 108type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
 109{ \
 110  register long __a __asm__ ("r10") = (long) arg1; \
 111  register long __b __asm__ ("r11") = (long) arg2; \
 112  register long __c __asm__ ("r12") = (long) arg3; \
 113  register long __d __asm__ ("r13") = (long) arg4; \
 114  register long __e __asm__ ("mof") = (long) arg5; \
 115  register long __n_ __asm__ ("r9") = (__NR_##name); \
 116  __asm__ __volatile__ (".ifnc %0%1%3%4%5%6,$r10$r9$r11$r12$r13$mof\n\t" \
 117                        ".err\n\t" \
 118                        ".endif\n\t" \
 119                        "break 13" \
 120                        : "=r" (__a) \
 121                        : "r" (__n_), "0" (__a), "r" (__b), \
 122                          "r" (__c), "r" (__d), "h" (__e) \
 123                        : "memory"); \
 124  if (__a >= 0) \
 125     return (type) __a; \
 126  errno = -__a; \
 127  return (type) -1; \
 128}
 129
 130#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
 131          type5,arg5,type6,arg6) \
 132type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \
 133{ \
 134  register long __a __asm__ ("r10") = (long) arg1; \
 135  register long __b __asm__ ("r11") = (long) arg2; \
 136  register long __c __asm__ ("r12") = (long) arg3; \
 137  register long __d __asm__ ("r13") = (long) arg4; \
 138  register long __e __asm__ ("mof") = (long) arg5; \
 139  register long __f __asm__ ("srp") = (long) arg6; \
 140  register long __n_ __asm__ ("r9") = (__NR_##name); \
 141  __asm__ __volatile__ (".ifnc %0%1%3%4%5%6%7,$r10$r9$r11$r12$r13$mof$srp\n\t" \
 142                        ".err\n\t" \
 143                        ".endif\n\t" \
 144                        "break 13" \
 145                        : "=r" (__a) \
 146                        : "r" (__n_), "0" (__a), "r" (__b), \
 147                          "r" (__c), "r" (__d), "h" (__e), "x" (__f) \
 148                        : "memory"); \
 149  if (__a >= 0) \
 150     return (type) __a; \
 151  errno = -__a; \
 152  return (type) -1; \
 153}
 154
 155#endif
 156