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,atype,a) \
  19 type name(atype a) \
  20 { \
  21 long __res; \
  22 __asm__ volatile ("int $0x80" \
  23         : "=a" (__res) \
  24         : "0" (__NR_##name),"b" ((long)(a))); \
  25 if (__res >= 0) \
  26         return (type) __res; \
  27 errno = -__res; \
  28 return -1; \
  29 }
  30 
  31 #define _syscall2(type,name,atype,a,btype,b) \
  32 type name(atype a,btype b) \
  33 { \
  34 long __res; \
  35 __asm__ volatile ("int $0x80" \
  36         : "=a" (__res) \
  37         : "0" (__NR_##name),"b" ((long)(a)),"c" ((long)(b))); \
  38 if (__res >= 0) \
  39         return (type) __res; \
  40 errno = -__res; \
  41 return -1; \
  42 }
  43 
  44 #define _syscall3(type,name,atype,a,btype,b,ctype,c) \
  45 type name(atype a,btype b,ctype c) \
  46 { \
  47 long __res; \
  48 __asm__ volatile ("int $0x80" \
  49         : "=a" (__res) \
  50         : "0" (__NR_##name),"b" ((long)(a)),"c" ((long)(b)),"d" ((long)(c))); \
  51 if (__res>=0) \
  52         return (type) __res; \
  53 errno=-__res; \
  54 return -1; \
  55 }
  56 
  57 #define _syscall4(type,name,atype,a,btype,b,ctype,c,dtype,d) \
  58 type name (atype a, btype b, ctype c, dtype d) \
  59 { \
  60 long __res; \
  61 __asm__ volatile ("int $0x80" \
  62         : "=a" (__res) \
  63         : "0" (__NR_##name),"b" ((long)(a)),"c" ((long)(b)), \
  64           "d" ((long)(c)),"S" ((long)(d))); \
  65 if (__res>=0) \
  66         return (type) __res; \
  67 errno=-__res; \
  68 return -1; \
  69 }
  70 
  71 #define _syscall5(type,name,atype,a,btype,b,ctype,c,dtype,d,etype,e) \
  72 type name (atype a,btype b,ctype c,dtype d,etype e) \
  73 { \
  74 long __res; \
  75 __asm__ volatile ("int $0x80" \
  76         : "=a" (__res) \
  77         : "0" (__NR_##name),"b" ((long)(a)),"c" ((long)(b)), \
  78           "d" ((long)(c)),"S" ((long)(d)),"D" ((long)(e))); \
  79 if (__res>=0) \
  80         return (type) __res; \
  81 errno=-__res; \
  82 return -1; \
  83 }
  84 
  85 #endif /* _ASM_I386_UNISTD_H_ */
/* */
root/include/asm-i386/unistd.h

INCLUDED FROM
