include/asm-i386/unistd.h

/* */
   1 #ifndef _ASM_I386_UNISTD_H_
   2 #define _ASM_I386_UNISTD_H_
   3 
   4 /* XXX - _foo needs to be __foo, while __NR_bar could be _NR_bar. */
   5 #define _syscall0(type,name) \
   6 type name(void) \
   7 { \
   8 long __res; \
   9 __asm__ volatile ("int $0x80" \
  10         : "=a" (__res) \
  11         : "0" (__NR_##name)); \
  12 if (__res >= 0) \
  13         return (type) __res; \
  14 errno = -__res; \
  15 return -1; \
  16 }
  17 
  18 #define _syscall1(type,name,type1,arg1) \
  19 type name(type1 arg1) \
  20 { \
  21 long __res; \
  22 __asm__ volatile ("int $0x80" \
  23         : "=a" (__res) \
  24         : "0" (__NR_##name),"b" ((long)(arg1))); \
  25 if (__res >= 0) \
  26         return (type) __res; \
  27 errno = -__res; \
  28 return -1; \
  29 }
  30 
  31 #define _syscall2(type,name,type1,arg1,type2,arg2) \
  32 type name(type1 arg1,type2 arg2) \
  33 { \
  34 long __res; \
  35 __asm__ volatile ("int $0x80" \
  36         : "=a" (__res) \
  37         : "0" (__NR_##name),"b" ((long)(arg1)),"c" ((long)(arg2))); \
  38 if (__res >= 0) \
  39         return (type) __res; \
  40 errno = -__res; \
  41 return -1; \
  42 }
  43 
  44 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
  45 type name(type1 arg1,type2 arg2,type3 arg3) \
  46 { \
  47 long __res; \
  48 __asm__ volatile ("int $0x80" \
  49         : "=a" (__res) \
  50         : "0" (__NR_##name),"b" ((long)(arg1)),"c" ((long)(arg2)), \
  51                   "d" ((long)(arg3))); \
  52 if (__res>=0) \
  53         return (type) __res; \
  54 errno=-__res; \
  55 return -1; \
  56 }
  57 
  58 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
  59 type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
  60 { \
  61 long __res; \
  62 __asm__ volatile ("int $0x80" \
  63         : "=a" (__res) \
  64         : "0" (__NR_##name),"b" ((long)(arg1)),"c" ((long)(arg2)), \
  65           "d" ((long)(arg3)),"S" ((long)(arg4))); \
  66 if (__res>=0) \
  67         return (type) __res; \
  68 errno=-__res; \
  69 return -1; \
  70 } 
  71 
  72 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
  73           type5,arg5) \
  74 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
  75 { \
  76 long __res; \
  77 __asm__ volatile ("int $0x80" \
  78         : "=a" (__res) \
  79         : "0" (__NR_##name),"b" ((long)(arg1)),"c" ((long)(arg2)), \
  80           "d" ((long)(arg3)),"S" ((long)(arg4)),"D" ((long)(arg5))); \
  81 if (__res>=0) \
  82         return (type) __res; \
  83 errno=-__res; \
  84 return -1; \
  85 }
  86 
  87 #endif /* _ASM_I386_UNISTD_H_ */
/* */
root/include/asm-i386/unistd.h

INCLUDED FROM
