/* sycall_macros.h 
   das sind die macros aus dem linux kernel
   in einer version vor 2.6.18.
   viel spass :D
*/
/*
 * user-visible error numbers are in the range -1 - -128: see
 * <asm-i386/errno.h>
 */
#define __syscall_return(type, res) \
do { \
        if ((unsigned long)(res) >= (unsigned long)(-(128 + 1))) { \
                errno = -(res); \
                res = -1; \
        } \
        return (type) (res); \
} while (0)

/* XXX - _foo needs to be __foo, while __NR_bar could be _NR_bar. */
#define _syscall0(type,name) \
type name(void) \
{ \
long __res; \
__asm__ volatile ("int $0x80" \
        : "=a" (__res) \
        : "0" (__NR_##name)); \
__syscall_return(type,__res); \
}

#define _syscall1(type,name,type1,arg1) \
type name(type1 arg1) \
{ \
long __res; \
__asm__ volatile ("int $0x80" \
        : "=a" (__res) \
        : "0" (__NR_##name),"b" ((long)(arg1)) : "memory"); \
__syscall_return(type,__res); \
}

#define _syscall2(type,name,type1,arg1,type2,arg2) \
type name(type1 arg1,type2 arg2) \
{ \
long __res; \
__asm__ volatile ("int $0x80" \
        : "=a" (__res) \
        : "0" (__NR_##name),"b" ((long)(arg1)),"c" ((long)(arg2)) : 
"memory"); \
__syscall_return(type,__res); \
}
#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
type name(type1 arg1,type2 arg2,type3 arg3) \
{ \
long __res; \
__asm__ volatile ("int $0x80" \
        : "=a" (__res) \
        : "0" (__NR_##name),"b" ((long)(arg1)),"c" ((long)(arg2)), \
                  "d" ((long)(arg3)) : "memory"); \
__syscall_return(type,__res); \
}

#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) 
\
type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
{ \
long __res; \
__asm__ volatile ("int $0x80" \
        : "=a" (__res) \
        : "0" (__NR_##name),"b" ((long)(arg1)),"c" ((long)(arg2)), \
          "d" ((long)(arg3)),"S" ((long)(arg4)) : "memory"); \
__syscall_return(type,__res); \
}

#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, 
\
          type5,arg5) \
type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
{ \
long __res; \
__asm__ volatile ("int $0x80" \
        : "=a" (__res) \
        : "0" (__NR_##name),"b" ((long)(arg1)),"c" ((long)(arg2)), \
          "d" ((long)(arg3)),"S" ((long)(arg4)),"D" ((long)(arg5)) : 
"memory"); \
__syscall_return(type,__res); \
}

#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, 
\
          type5,arg5,type6,arg6) \
type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 
arg6) \
{ \
long __res; \
__asm__ volatile ("push %%ebp ; movl %%eax,%%ebp ; movl %1,%%eax ; int 
$0x80 ; pop %%ebp" \
        : "=a" (__res) \
        : "i" (__NR_##name),"b" ((long)(arg1)),"c" ((long)(arg2)), \
          "d" ((long)(arg3)),"S" ((long)(arg4)),"D" ((long)(arg5)), \
          "0" ((long)(arg6)) : "memory"); \
__syscall_return(type,__res); \
}