i386/sys/syscall.S

1.8.2.1        he /*	$NetBSD: syscall.S,v 1.8.2.1 2000/05/05 13:10:56 he Exp $	*/
    1.6  christos
    1.1       cgd /*-
    1.1       cgd  * Copyright (c) 1990 The Regents of the University of California.
    1.1       cgd  * All rights reserved.
    1.1       cgd  *
    1.1       cgd  * This code is derived from software contributed to Berkeley by
    1.1       cgd  * William Jolitz.
    1.1       cgd  *
    1.1       cgd  * Redistribution and use in source and binary forms, with or without
    1.1       cgd  * modification, are permitted provided that the following conditions
    1.1       cgd  * are met:
    1.1       cgd  * 1. Redistributions of source code must retain the above copyright
    1.1       cgd  *    notice, this list of conditions and the following disclaimer.
    1.1       cgd  * 2. Redistributions in binary form must reproduce the above copyright
    1.1       cgd  *    notice, this list of conditions and the following disclaimer in the
    1.1       cgd  *    documentation and/or other materials provided with the distribution.
    1.1       cgd  * 3. All advertising materials mentioning features or use of this software
    1.1       cgd  *    must display the following acknowledgement:
    1.1       cgd  *	This product includes software developed by the University of
    1.1       cgd  *	California, Berkeley and its contributors.
    1.1       cgd  * 4. Neither the name of the University nor the names of its contributors
    1.1       cgd  *    may be used to endorse or promote products derived from this software
    1.1       cgd  *    without specific prior written permission.
    1.1       cgd  *
    1.1       cgd  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
    1.1       cgd  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    1.1       cgd  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    1.1       cgd  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
    1.1       cgd  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    1.1       cgd  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
    1.1       cgd  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
    1.1       cgd  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
    1.1       cgd  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
    1.1       cgd  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
    1.1       cgd  * SUCH DAMAGE.
    1.2       jtc  *
    1.2       jtc  *	from: @(#)syscall.s	5.1 (Berkeley) 4/23/90
    1.1       cgd  */
    1.1       cgd
    1.6  christos #include <machine/asm.h>
    1.1       cgd #if defined(SYSLIBC_SCCS) && !defined(lint)
1.8.2.1        he 	RCSID("$NetBSD: syscall.S,v 1.8.2.1 2000/05/05 13:10:56 he Exp $")
    1.1       cgd #endif /* SYSLIBC_SCCS and not lint */
    1.1       cgd
    1.1       cgd #include "SYS.h"
    1.1       cgd
    1.1       cgd ENTRY(syscall)
    1.1       cgd 	pop	%ecx	/* rta */
    1.1       cgd 	pop	%eax	/* syscall number */
    1.1       cgd 	push	%ecx
    1.5   mycroft 	int	$0x80
    1.1       cgd 	push	%ecx	/* Keep stack frame consistant */
    1.4   mycroft 	jc	err
    1.1       cgd 	ret
    1.4   mycroft err:
    1.4   mycroft #ifdef PIC
    1.8  christos 	PIC_PROLOGUE
1.8.2.1        he 	mov	PIC_GOT(CERROR), %ecx
1.8.2.1        he 	PIC_EPILOGUE
1.8.2.1        he 	jmp	%ecx
    1.4   mycroft #else
    1.7    kleink 	jmp	CERROR
    1.4   mycroft #endif