#ifndef _BITS_SYSCALLS_H #define _BITS_SYSCALLS_H #ifndef _SYSCALL_H # error "Never use directly; include instead." #endif /* This includes the `__NR_' syscall numbers taken from the Linux kernel * header files. It also defines the traditional `SYS_' macros for older * programs. */ #include #ifndef __set_errno # define __set_errno(val) (*__errno_location ()) = (val) #endif #ifndef SYS_ify # define SYS_ify(syscall_name) (__NR_##syscall_name) #endif #ifndef __ASSEMBLER__ /* XXX - _foo needs to be __foo, while __NR_bar could be _NR_bar. */ #define _syscall0(type,name) \ type name(void) \ { \ long __res, __err; \ __asm__ volatile ("li\t$2,%2\n\t" \ "syscall\n\t" \ "move\t%0, $2\n\t" \ "move\t%1, $7" \ : "=r" (__res), "=r" (__err) \ : "i" (__NR_##name) \ : "$2","$7","$8","$9","$10","$11","$12","$13","$14","$15", \ "$24"); \ if (__err == 0) \ return (type) __res; \ __set_errno(__res); \ return (type)-1; \ } /* * DANGER: This macro isn't usable for the pipe(2) call * which has a unusual return convention. */ #define _syscall1(type,name,atype,a) \ type name(atype a) \ { \ long __res, __err; \ __asm__ volatile ("move\t$4,%3\n\t" \ "li\t$2,%2\n\t" \ "syscall\n\t" \ "move\t%0, $2\n\t" \ "move\t%1, $7" \ : "=r" (__res), "=r" (__err) \ : "i" (__NR_##name),"r" ((long)(a)) \ : "$2","$4","$7","$8","$9","$10","$11","$12","$13","$14","$15","$24"); \ if (__err == 0) \ return (type) __res; \ __set_errno(__res); \ return (type)-1; \ } #define _syscall2(type,name,atype,a,btype,b) \ type name(atype a,btype b) \ { \ long __res, __err; \ __asm__ volatile ("move\t$4,%3\n\t" \ "move\t$5,%4\n\t" \ "li\t$2,%2\n\t" \ "syscall\n\t" \ "move\t%0, $2\n\t" \ "move\t%1, $7" \ : "=r" (__res), "=r" (__err) \ : "i" (__NR_##name),"r" ((long)(a)), \ "r" ((long)(b)) \ : "$2","$4","$5","$7","$8","$9","$10","$11","$12","$13", \ "$14","$15", "$24"); \ if (__err == 0) \ return (type) __res; \ __set_errno(__res); \ return (type)-1; \ } #define _syscall3(type,name,atype,a,btype,b,ctype,c) \ type name (atype a, btype b, ctype c) \ { \ long __res, __err; \ __asm__ volatile ("move\t$4,%3\n\t" \ "move\t$5,%4\n\t" \ "move\t$6,%5\n\t" \ "li\t$2,%2\n\t" \ "syscall\n\t" \ "move\t%0, $2\n\t" \ "move\t%1, $7" \ : "=r" (__res), "=r" (__err) \ : "i" (__NR_##name),"r" ((long)(a)), \ "r" ((long)(b)), \ "r" ((long)(c)) \ : "$2","$4","$5","$6","$7","$8","$9","$10","$11","$12", \ "$13","$14","$15","$24"); \ if (__err == 0) \ return (type) __res; \ __set_errno(__res); \ return (type)-1; \ } #define _syscall4(type,name,atype,a,btype,b,ctype,c,dtype,d) \ type name (atype a, btype b, ctype c, dtype d) \ { \ long __res, __err; \ __asm__ volatile ("move\t$4,%3\n\t" \ "move\t$5,%4\n\t" \ "move\t$6,%5\n\t" \ "move\t$7,%6\n\t" \ "li\t$2,%2\n\t" \ "syscall\n\t" \ "move\t%0, $2\n\t" \ "move\t%1, $7" \ : "=r" (__res), "=r" (__err) \ : "i" (__NR_##name),"r" ((long)(a)), \ "r" ((long)(b)), \ "r" ((long)(c)), \ "r" ((long)(d)) \ : "$2","$4","$5","$6","$7","$8","$9","$10","$11","$12", \ "$13","$14","$15","$24"); \ if (__err == 0) \ return (type) __res; \ __set_errno(__res); \ return (type)-1; \ } #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) \ { \ long __res, __err; \ __asm__ volatile ("move\t$4,%3\n\t" \ "move\t$5,%4\n\t" \ "move\t$6,%5\n\t" \ "lw\t$2,%7\n\t" \ "move\t$7,%6\n\t" \ "subu\t$29,24\n\t" \ "sw\t$2,16($29)\n\t" \ "li\t$2,%2\n\t" \ "syscall\n\t" \ "move\t%0, $2\n\t" \ "move\t%1, $7\n\t" \ "addiu\t$29,24" \ : "=r" (__res), "=r" (__err) \ : "i" (__NR_##name),"r" ((long)(a)), \ "r" ((long)(b)), \ "r" ((long)(c)), \ "r" ((long)(d)), \ "m" ((long)(e)) \ : "$2","$4","$5","$6","$7","$8","$9","$10","$11","$12", \ "$13","$14","$15","$24"); \ if (__err == 0) \ return (type) __res; \ __set_errno(__res); \ return (type)-1; \ } #define _syscall6(type,name,atype,a,btype,b,ctype,c,dtype,d,etype,e,ftype,f) \ type name (atype a,btype b,ctype c,dtype d,etype e,ftype f) \ { \ long __res, __err; \ __asm__ volatile ("move\t$4,%3\n\t" \ "move\t$5,%4\n\t" \ "move\t$6,%5\n\t" \ "lw\t$2,%7\n\t" \ "lw\t$3,%8\n\t" \ "move\t$7,%6\n\t" \ "subu\t$29,24\n\t" \ "sw\t$2,16($29)\n\t" \ "sw\t$3,20($29)\n\t" \ "li\t$2,%2\n\t" \ "syscall\n\t" \ "move\t%0, $2\n\t" \ "move\t%1, $7\n\t" \ "addiu\t$29,24" \ : "=r" (__res), "=r" (__err) \ : "i" (__NR_##name),"r" ((long)(a)), \ "r" ((long)(b)), \ "r" ((long)(c)), \ "r" ((long)(d)), \ "m" ((long)(e)), \ "m" ((long)(f)) \ : "$2","$3","$4","$5","$6","$7","$8","$9","$10","$11", \ "$12","$13","$14","$15","$24"); \ if (__err == 0) \ return (type) __res; \ __set_errno(__res); \ return (type)-1; \ } #define _syscall7(type,name,atype,a,btype,b,ctype,c,dtype,d,etype,e,ftype,f,gtype,g) \ type name (atype a,btype b,ctype c,dtype d,etype e,ftype f,gtype g) \ { \ long __res, __err; \ __asm__ volatile ("move\t$4,%3\n\t" \ "move\t$5,%4\n\t" \ "move\t$6,%5\n\t" \ "lw\t$2,%7\n\t" \ "lw\t$3,%8\n\t" \ "move\t$7,%6\n\t" \ "subu\t$29,32\n\t" \ "sw\t$2,16($29)\n\t" \ "lw\t$2,%9\n\t" \ "sw\t$3,20($29)\n\t" \ "sw\t$2,24($29)\n\t" \ "li\t$2,%2\n\t" \ "syscall\n\t" \ "move\t%0, $2\n\t" \ "move\t%1, $7\n\t" \ "addiu\t$29,32" \ : "=r" (__res), "=r" (__err) \ : "i" (__NR_##name),"r" ((long)(a)), \ "r" ((long)(b)), \ "r" ((long)(c)), \ "r" ((long)(d)), \ "m" ((long)(e)), \ "m" ((long)(f)), \ "m" ((long)(g)) \ : "$2","$3","$4","$5","$6","$7","$8","$9","$10","$11", \ "$12","$13","$14","$15","$24"); \ if (__err == 0) \ return (type) __res; \ __set_errno(__res); \ return (type)-1; \ } #endif /* __ASSEMBLER__ */ #endif /* _BITS_SYSCALLS_H */