From a91e3b0a22e6bcba52edd101c0ae9e712a9f8cd2 Mon Sep 17 00:00:00 2001 From: "\"Steven J. Hill\"" Date: Thu, 25 Jul 2002 21:16:01 +0000 Subject: ldso specific syscalls and userspace syscalls all in one file now. --- libc/sysdeps/linux/mips/bits/syscalls.h | 219 +++++++++++++++++++++++++++++++- 1 file changed, 214 insertions(+), 5 deletions(-) (limited to 'libc') diff --git a/libc/sysdeps/linux/mips/bits/syscalls.h b/libc/sysdeps/linux/mips/bits/syscalls.h index e1981445f..2be184527 100644 --- a/libc/sysdeps/linux/mips/bits/syscalls.h +++ b/libc/sysdeps/linux/mips/bits/syscalls.h @@ -4,11 +4,220 @@ # error "Never use directly; include instead." #endif -#include +/* This includes the `__NR_' syscall numbers taken from the Linux kernel + * header files. It also defines the traditional `SYS_' macros for older + * programs. */ +#include -/* Do something very evil for now. Until we create our own syscall - * macros, short circuit bits/syscall.h and use asm/unistd.h instead */ -#define _BITS_SYSCALL_H -#include +#ifndef __set_errno +# define __set_errno(val) { (*__errno_location ()) = (val); return -1; } +#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); \ +} + +/* + * 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); \ +} + +#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); \ +} + +#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); \ +} + +#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); \ +} + +#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); \ +} + +#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); \ +} + +#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); \ +} +#endif /* __ASSEMBLER__ */ #endif /* _BITS_SYSCALLS_H */ -- cgit v1.2.3