trap.h revision 1.1 
1/*	$NetBSD: trap.h,v 1.1 2001/01/10 19:02:08 bjh21 Exp $	*/
2
3/*
4 * Copyright (c) 1995 Mark Brinicombe.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 *    must display the following acknowledgement:
17 *	This product includes software developed by Mark Brinicombe.
18 * 4. The name of the company nor the name of the author may be used to
19 *    endorse or promote products derived from this software without specific
20 *    prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
23 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
24 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
26 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
27 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 * RiscBSD kernel project
35 *
36 * trap.h
37 *
38 * Various trap definitions
39 */
40
41/*
42 * Instructions used for breakpoints.
43 *
44 * These are an undefined instructions.
45 * Technically the userspace breakpoint could be a SWI
46 * but we want to keep this the same as IPKDB which
47 * needs an undefined instruction as a break point.
48 * Ideally ARM would define several standard instruction
49 * sequences for use as breakpoints.
50 */
51
52#define GDB_BREAKPOINT		0xe6000011	/* Used by GDB */
53#define IPKDB_BREAKPOINT	0xe6000010	/* Used by IPKDB */
54#define KERNEL_BREAKPOINT	0xe7ffffff	/* Used by DDB */
55
56#define USER_BREAKPOINT		GDB_BREAKPOINT
57
58/* End of trap.h */
59