diff options
Diffstat (limited to 'libc/sysdeps/linux/nios2/syscall.c')
| -rw-r--r-- | libc/sysdeps/linux/nios2/syscall.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/nios2/syscall.c b/libc/sysdeps/linux/nios2/syscall.c new file mode 100644 index 000000000..c6cce215a --- /dev/null +++ b/libc/sysdeps/linux/nios2/syscall.c @@ -0,0 +1,47 @@ +/* + * libc/sysdeps/linux/nios2/syscall.c -- generic syscall function for linux/nios2 + * + * Copyright (C) 2004 Microtronix Datacom Ltd. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU Library General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License + * for more details. + * + * You should have received a copy of the GNU Library General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <features.h> +#include <errno.h> +#include <sys/types.h> +#include <sys/syscall.h> + + +long syscall(long sysnum, long a, long b, long c, long d, long e, long f) +{ + register long _r2 asm("r2")=(long)TRAP_ID_SYSCALL; + register long _r3 asm("r3")=(long)sysnum; + + register long _r4 asm("r4")=(long)(a); + register long _r5 asm("r5")=(long)(b); + register long _r6 asm("r6")=(long)(c); + register long _r7 asm("r7")=(long)(d); + register long _r8 asm("r8")=(long)(e); + register long _r9 asm("r9")=(long)(f); + asm volatile( + "trap " + : "=r"(_r2), "=r"(_r3) + : "0"(_r2), "1"(_r3), + "r"(_r4), "r"(_r5), "r"(_r6), "r"(_r7), "r"(_r8), "r"(_r9) + : "memory"); + + __syscall_return (long, _r2); +} + |