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#include <asm/unistd.h>
/* Here are the macros which define how this platform makes
* system calls. This particular variant does _not_ set
* errno (note how it is disabled in __syscall_return) since
* these will get called before the errno symbol is dynamicly
* linked. */
#undef __syscall_return
#define __syscall_return(type, res) \
do { \
if ((unsigned long)(res) >= (unsigned long)(-125)) { \
/* avoid using res which is declared to be in register d0; \
errno might expand to a function call and clobber it. */ \
/* int __err = -(res); \
errno = __err; */ \
res = -1; \
} \
return (type) (res); \
} while (0)
#define _syscall0(type,name) \
type name(void) \
{ \
register long __res __asm__ ("%d0") = __NR_##name; \
__asm__ __volatile__ ("trap #0" \
: "=g" (__res) \
: "0" (__res) \
: "%d0"); \
__syscall_return(type,__res); \
}
#define _syscall1(type,name,atype,a) \
type name(atype a) \
{ \
register long __res __asm__ ("%d0") = __NR_##name; \
register long __a __asm__ ("%d1") = (long)(a); \
__asm__ __volatile__ ("trap #0" \
: "=d" (__res) \
: "0" (__res), "d" (__a) \
: "%d0"); \
__syscall_return(type,__res); \
}
#define _syscall2(type,name,atype,a,btype,b) \
type name(atype a,btype b) \
{ \
register long __res __asm__ ("%d0") = __NR_##name; \
register long __a __asm__ ("%d1") = (long)(a); \
register long __b __asm__ ("%d2") = (long)(b); \
__asm__ __volatile__ ("trap #0" \
: "=d" (__res) \
: "0" (__res), "d" (__a), "d" (__b) \
: "%d0"); \
__syscall_return(type,__res); \
}
#define _syscall3(type,name,atype,a,btype,b,ctype,c) \
type name(atype a,btype b,ctype c) \
{ \
register long __res __asm__ ("%d0") = __NR_##name; \
register long __a __asm__ ("%d1") = (long)(a); \
register long __b __asm__ ("%d2") = (long)(b); \
register long __c __asm__ ("%d3") = (long)(c); \
__asm__ __volatile__ ("trap #0" \
: "=d" (__res) \
: "0" (__res), "d" (__a), "d" (__b), \
"d" (__c) \
: "%d0"); \
__syscall_return(type,__res); \
}
#define _syscall4(type,name,atype,a,btype,b,ctype,c,dtype,d) \
type name (atype a, btype b, ctype c, dtype d) \
{ \
register long __res __asm__ ("%d0") = __NR_##name; \
register long __a __asm__ ("%d1") = (long)(a); \
register long __b __asm__ ("%d2") = (long)(b); \
register long __c __asm__ ("%d3") = (long)(c); \
register long __d __asm__ ("%d4") = (long)(d); \
__asm__ __volatile__ ("trap #0" \
: "=d" (__res) \
: "0" (__res), "d" (__a), "d" (__b), \
"d" (__c), "d" (__d) \
: "%d0"); \
__syscall_return(type,__res); \
}
#define _syscall5(type,name,atype,a,btype,b,ctype,c,dtype,d,etype,e) \
type name (atype a,btype b,ctype c,dtype d,etype e) \
{ \
register long __res __asm__ ("%d0") = __NR_##name; \
register long __a __asm__ ("%d1") = (long)(a); \
register long __b __asm__ ("%d2") = (long)(b); \
register long __c __asm__ ("%d3") = (long)(c); \
register long __d __asm__ ("%d4") = (long)(d); \
register long __e __asm__ ("%d5") = (long)(e); \
__asm__ __volatile__ ("trap #0" \
: "=d" (__res) \
: "0" (__res), "d" (__a), "d" (__b), \
"d" (__c), "d" (__d), "d" (__e) \
: "%d0"); \
__syscall_return(type,__res); \
}
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