sparc/sys/ptrace.S

1.3  christos /*	$NetBSD: ptrace.S,v 1.3 1997/07/16 14:37:59 christos Exp $	*/
1.3  christos
1.1       cgd /*
1.1       cgd  * Copyright (c) 1992, 1993
1.1       cgd  *	The Regents of the University of California.  All rights reserved.
1.1       cgd  *
1.1       cgd  * This software was developed by the Computer Systems Engineering group
1.1       cgd  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
1.1       cgd  * contributed to Berkeley.
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.
1.1       cgd  *
1.1       cgd  * from: Header: ptrace.s,v 1.2 91/12/20 01:59:00 leres Exp
1.1       cgd  */
1.1       cgd
1.3  christos #include <machine/asm.h>
1.3  christos #if defined(SYSLIBC_SCCS) && !defined(lint)
1.3  christos #if 0
1.1       cgd 	.asciz "@(#)ptrace.s	8.1 (Berkeley) 6/4/93"
1.3  christos #else
1.3  christos 	RCSID("$NetBSD: ptrace.S,v 1.3 1997/07/16 14:37:59 christos Exp $")
1.3  christos #endif
1.3  christos #endif /* SYSLIBC_SCCS and not lint */
1.1       cgd
1.1       cgd #include "SYS.h"
1.1       cgd
1.1       cgd ENTRY(ptrace)
1.2        pk #ifdef PIC
1.2        pk 	PIC_PROLOGUE(%g1,%g2)
1.2        pk 	ld	[%g1 +_errno], %g1
1.2        pk 	st	%g0, [%g1]
1.2        pk #else
1.1       cgd 	sethi	%hi(_errno), %g1
1.1       cgd 	st	%g0, [%g1 + %lo(_errno)]
1.2        pk #endif
1.1       cgd 	mov	SYS_ptrace, %g1
1.1       cgd 	t	ST_SYSCALL
1.1       cgd 	bcc	1f
1.1       cgd 	nop
1.1       cgd 	ERROR()
1.1       cgd 1:
1.1       cgd 	retl
1.1       cgd 	nop