#define __syscall_return(type, res) \
do { \
        if ((unsigned long)(res) >= (unsigned long)(-125)) { \
                errno = -(res); \
                res = -1; \
        } \
        return (type) (res); \
} while (0)

#define _syscall0(type,name) \
type name(void) \
{ \
long __res; \
__asm__ volatile ("syscall" \
        : "=a" (__res) \
        : "0" (__NR_##name)); \
__syscall_return(type,__res); \
}

#define _syscall1(type, name, type1, arg1) \
type name(type1 arg1) \
{ \
register long int _a1 asm ("rdi") = (long int)arg1; \
long __res; \
__asm__ volatile ("syscall" \
        : "=a" (__res) \
        : "0" (__NR_##name), "r" (_a1) \
        : "memory", "cc", "r11", "cx"); \
__syscall_return(type, __res); \
}

#define _syscall2(type, name, type1, arg1, type2, arg2) \
type name(type1 arg1, type2 arg2) \
{ \
register long int _a1 asm ("rdi") = (long int)arg1; \
register long int _a2 asm ("rsi") = (long int)arg2; \
long __res; \
__asm__ volatile ("syscall" \
        : "=a" (__res) \
        : "0" (__NR_##name), "r" (_a1), "r" (_a2) \
        : "memory", "cc", "r11", "cx"); \
__syscall_return(type, __res); \
}

#define _syscall3(type, name, type1, arg1, type2, arg2, type3, arg3) \
type name(type1 arg1, type2 arg2, type3 arg3) \
{ \
register long int _a1 asm ("rdi") = (long int)arg1; \
register long int _a2 asm ("rsi") = (long int)arg2; \
register long int _a3 asm ("rdx") = (long int)arg3; \
long __res; \
__asm__ volatile ("syscall" \
        : "=a" (__res) \
        : "0" (__NR_##name), "r" (_a1), "r" (_a2), "r" (_a3) \
        : "memory", "cc", "r11", "cx"); \
__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) \
{ \
register long int _a1 asm ("rdi") = (long int)arg1; \
register long int _a2 asm ("rsi") = (long int)arg2; \
register long int _a3 asm ("rdx") = (long int)arg3; \
register long int _a4 asm ("r10") = (long int)arg4; \
long __res; \
__asm__ volatile ("syscall" \
        : "=a" (__res) \
        : "0" (__NR_##name), "r" (_a1), "r" (_a2), "r" (_a3), \
                             "r" (_a4) \
        : "memory", "cc", "r11", "cx"); \
__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) \
{ \
register long int _a1 asm ("rdi") = (long int)arg1; \
register long int _a2 asm ("rsi") = (long int)arg2; \
register long int _a3 asm ("rdx") = (long int)arg3; \
register long int _a4 asm ("r10") = (long int)arg4; \
register long int _a5 asm ("r8")  = (long int)arg5; \
long __res; \
__asm__ volatile ("syscall" \
        : "=a" (__res) \
        : "0" (__NR_##name), "r" (_a1), "r" (_a2), "r" (_a3), \
                             "r" (_a4), "r" (_a5) \
        : "memory", "cc", "r11", "cx"); \
__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) \
{ \
register long int _a1 asm ("rdi") = (long int)arg1; \
register long int _a2 asm ("rsi") = (long int)arg2; \
register long int _a3 asm ("rdx") = (long int)arg3; \
register long int _a4 asm ("r10") = (long int)arg4; \
register long int _a5 asm ("r8")  = (long int)arg5; \
register long int _a6 asm ("r9")  = (long int)arg6; \
long __res; \
__asm__ volatile ("syscall" \
        : "=a" (__res) \
        : "0" (__NR_##name), "r" (_a1), "r" (_a2), "r" (_a3), \
                             "r" (_a4), "r" (_a5), "r" (_a6) \
        : "memory", "cc", "r11", "cx"); \
__syscall_return(type, __res); \
}