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ptrace.S revision 1.5 
      1 /*	$NetBSD: ptrace.S,v 1.5 2007/12/02 15:48:47 skrll Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2001 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Matt Fredette.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <sys/errno.h>
     40 #include "SYS.h"
     41 
     42 	.import __cerror, code
     43 
     44 /*
     45  * int ptrace(int request, pid_t pid, void * addr, int data);
     46  */
     47 
     48 ENTRY(ptrace, HPPA_FRAME_SIZE)
     49 	stw	%rp, HPPA_FRAME_CRP(%sp)
     50 	stw	%arg0, HPPA_FRAME_ARG(0)(%sp)
     51 	stw	%arg1, HPPA_FRAME_ARG(1)(%sp)
     52 	stw	%arg2, HPPA_FRAME_ARG(2)(%sp)
     53 	stw	%arg3, HPPA_FRAME_ARG(3)(%sp)
     54 	ldo	HPPA_FRAME_SIZE(%sp),%sp
     55 	bl	__cerror, %rp
     56 	 copy	%r0, %t1
     57 	ldo	-HPPA_FRAME_SIZE(%sp), %sp
     58 	ldw	HPPA_FRAME_ARG(0)(%sp), %arg0
     59 	ldw	HPPA_FRAME_ARG(1)(%sp), %arg1
     60 	ldw	HPPA_FRAME_ARG(2)(%sp), %arg2
     61 	ldw	HPPA_FRAME_ARG(3)(%sp), %arg3
     62 	ldw	HPPA_FRAME_CRP(%sp), %rp
     63 
     64 	SYSCALL(ptrace)
     65 	bv,n	%r0(%rp)
     66 EXIT(ptrace)
     67