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ptrace.S revision 1.7 
      1 /*	$NetBSD: ptrace.S,v 1.7 2020/05/09 08:25:33 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  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/errno.h>
     33 #include "SYS.h"
     34 
     35 /*
     36  * int ptrace(int request, pid_t pid, void * addr, int data);
     37  */
     38 
     39 ENTRY(ptrace, HPPA_FRAME_SIZE)
     40 	stw	%rp, HPPA_FRAME_CRP(%sp)
     41 	stw	%arg0, HPPA_FRAME_ARG(0)(%sp)
     42 	stw	%arg1, HPPA_FRAME_ARG(1)(%sp)
     43 	stw	%arg2, HPPA_FRAME_ARG(2)(%sp)
     44 	stw	%arg3, HPPA_FRAME_ARG(3)(%sp)
     45 	ldo	HPPA_FRAME_SIZE(%sp),%sp
     46 	bl	__cerror, %rp
     47 	 copy	%r0, %t1
     48 	ldo	-HPPA_FRAME_SIZE(%sp), %sp
     49 	ldw	HPPA_FRAME_ARG(0)(%sp), %arg0
     50 	ldw	HPPA_FRAME_ARG(1)(%sp), %arg1
     51 	ldw	HPPA_FRAME_ARG(2)(%sp), %arg2
     52 	ldw	HPPA_FRAME_ARG(3)(%sp), %arg3
     53 	ldw	HPPA_FRAME_CRP(%sp), %rp
     54 
     55 	SYSCALL(ptrace)
     56 	bv,n	%r0(%rp)
     57 EXIT(ptrace)
     58