#include /* 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); \ }