386BSD 0.1 development
[unix-history] / usr / src / sys.386bsd / ddb / db_break.h
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1/*
2 * Mach Operating System
3 * Copyright (c) 1991,1990 Carnegie Mellon University
4 * All Rights Reserved.
5 *
6 * Permission to use, copy, modify and distribute this software and its
7 * documentation is hereby granted, provided that both the copyright
8 * notice and this permission notice appear in all copies of the
9 * software, derivative works or modified versions, and any portions
10 * thereof, and that both notices appear in supporting documentation.
11 *
12 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
13 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
14 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
15 *
16 * Carnegie Mellon requests users of this software to return to
17 *
18 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
19 * School of Computer Science
20 * Carnegie Mellon University
21 * Pittsburgh PA 15213-3890
22 *
23 * any improvements or extensions that they make and grant Carnegie the
24 * rights to redistribute these changes.
25 */
26/*
27 * HISTORY
28 * $Log: db_break.h,v $
29 * Revision 1.1 1992/03/25 21:44:59 pace
30 * Initial revision
31 *
32 * Revision 2.4 91/02/05 17:06:06 mrt
33 * Changed to new Mach copyright
34 * [91/01/31 16:17:10 mrt]
35 *
36 * Revision 2.3 90/10/25 14:43:40 rwd
37 * Added map field to breakpoints.
38 * [90/10/18 rpd]
39 *
40 * Revision 2.2 90/08/27 21:50:00 dbg
41 * Modularized typedef names.
42 * [90/08/20 af]
43 * Add external defintions.
44 * [90/08/07 dbg]
45 * Created.
46 * [90/07/25 dbg]
47 *
48 */
49/*
50 * Author: David B. Golub, Carnegie Mellon University
51 * Date: 7/90
52 */
53#ifndef _DDB_DB_BREAK_H_
54#define _DDB_DB_BREAK_H_
55
56#include <vm/vm_map.h>
57#include <machine/db_machdep.h>
58
59/*
60 * Breakpoint.
61 */
62
63struct db_breakpoint {
64 vm_map_t map; /* in this map */
65 db_addr_t address; /* set here */
66 int init_count; /* number of times to skip bkpt */
67 int count; /* current count */
68 int flags; /* flags: */
69#define BKPT_SINGLE_STEP 0x2 /* to simulate single step */
70#define BKPT_TEMP 0x4 /* temporary */
71 int bkpt_inst; /* saved instruction at bkpt */
72 struct db_breakpoint *link; /* link in in-use or free chain */
73};
74typedef struct db_breakpoint *db_breakpoint_t;
75
76extern db_breakpoint_t db_find_breakpoint();
77extern db_breakpoint_t db_find_breakpoint_here();
78extern void db_set_breakpoints();
79extern void db_clear_breakpoints();
80
81extern db_breakpoint_t db_set_temp_breakpoint(/* db_addr_t addr */);
82extern void db_delete_temp_breakpoint(/* db_breakpoint_t bkpt */);
83
84#endif _DDB_DB_BREAK_H_