uclibc-ng/libc/sysdeps/linux/m68k/syscall.c

/* syscall for m68k/uClibc
 *
 * Copyright (C) 2005-2006 by Christian Magnusson <mag@mag.cx>
 * Copyright (C) 2005-2006 Erik Andersen <andersen@uclibc.org>
 *
 * 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);
long syscall(long sysnum, long a, long b, long c, long d, long e, long f)
{
	long __res;
	__asm__ __volatile__ (
		"movel  %7, %%a0\n\t"
		"movel  %6, %%d5\n\t"
		"movel  %5, %%d4\n\t"
		"movel  %4, %%d3\n\t"
		"movel  %3, %%d2\n\t"
		"movel  %2, %%d1\n\t"
		"movel  %1, %%d0\n\t"
		"trap   #0\n\t"
		"movel  %%d0, %0"
		: "=g" (__res)
		: "g" (sysnum),
		  "g" ((long)a), "g" ((long)b), "g" ((long)c),
		  "g" ((long)d), "g" ((long)e), "g" ((long)f)
		: "memory", "cc", "%d0", "%d1", "%d2", "%d3",
		  "%d4", "%d5", "%a0");
	__syscall_return(long,__res);
}