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ptrace.S revision 1.1.10.1
      1  1.1.10.1  mycroft /*	$NetBSD: ptrace.S,v 1.1.10.1 2000/07/26 23:55:01 mycroft Exp $	*/
      2       1.1      eeh 
      3       1.1      eeh /*
      4       1.1      eeh  * Copyright (c) 1992, 1993
      5       1.1      eeh  *	The Regents of the University of California.  All rights reserved.
      6       1.1      eeh  *
      7       1.1      eeh  * This software was developed by the Computer Systems Engineering group
      8       1.1      eeh  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
      9       1.1      eeh  * contributed to Berkeley.
     10       1.1      eeh  *
     11       1.1      eeh  * Redistribution and use in source and binary forms, with or without
     12       1.1      eeh  * modification, are permitted provided that the following conditions
     13       1.1      eeh  * are met:
     14       1.1      eeh  * 1. Redistributions of source code must retain the above copyright
     15       1.1      eeh  *    notice, this list of conditions and the following disclaimer.
     16       1.1      eeh  * 2. Redistributions in binary form must reproduce the above copyright
     17       1.1      eeh  *    notice, this list of conditions and the following disclaimer in the
     18       1.1      eeh  *    documentation and/or other materials provided with the distribution.
     19       1.1      eeh  * 3. All advertising materials mentioning features or use of this software
     20       1.1      eeh  *    must display the following acknowledgement:
     21       1.1      eeh  *	This product includes software developed by the University of
     22       1.1      eeh  *	California, Berkeley and its contributors.
     23       1.1      eeh  * 4. Neither the name of the University nor the names of its contributors
     24       1.1      eeh  *    may be used to endorse or promote products derived from this software
     25       1.1      eeh  *    without specific prior written permission.
     26       1.1      eeh  *
     27       1.1      eeh  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     28       1.1      eeh  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     29       1.1      eeh  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     30       1.1      eeh  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     31       1.1      eeh  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     32       1.1      eeh  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     33       1.1      eeh  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     34       1.1      eeh  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     35       1.1      eeh  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     36       1.1      eeh  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     37       1.1      eeh  * SUCH DAMAGE.
     38       1.1      eeh  *
     39       1.1      eeh  * from: Header: ptrace.s,v 1.2 91/12/20 01:59:00 leres Exp
     40       1.1      eeh  */
     41       1.1      eeh 
     42       1.1      eeh #include <machine/asm.h>
     43       1.1      eeh #if defined(SYSLIBC_SCCS) && !defined(lint)
     44       1.1      eeh #if 0
     45       1.1      eeh 	.asciz "@(#)ptrace.s	8.1 (Berkeley) 6/4/93"
     46       1.1      eeh #else
     47  1.1.10.1  mycroft 	RCSID("$NetBSD: ptrace.S,v 1.1.10.1 2000/07/26 23:55:01 mycroft Exp $")
     48       1.1      eeh #endif
     49       1.1      eeh #endif /* SYSLIBC_SCCS and not lint */
     50       1.1      eeh 
     51       1.1      eeh #include "SYS.h"
     52       1.1      eeh 
     53       1.1      eeh ENTRY(ptrace)
     54  1.1.10.1  mycroft 	save	%sp, -CC64FSZ, %sp
     55  1.1.10.1  mycroft 	call	_C_LABEL(__errno)
     56  1.1.10.1  mycroft 	 nop
     57  1.1.10.1  mycroft 	st	%g0, [%o0]
     58  1.1.10.1  mycroft 	restore
     59       1.1      eeh 	mov	SYS_ptrace, %g1
     60       1.1      eeh 	t	ST_SYSCALL
     61       1.1      eeh 	bcc	1f
     62       1.1      eeh 	nop
     63       1.1      eeh 	ERROR()
     64       1.1      eeh 1:
     65       1.1      eeh 	retl
     66       1.1      eeh 	nop
     67