Patches from John Brezak (necessary for the syscall->trapframe conversion
[unix-history] / sys / 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.
15637ed4 25 *
cbeffc91 26 * $Id$
15637ed4 27 */
cbeffc91 28
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29/*
30 * Author: David B. Golub, Carnegie Mellon University
31 * Date: 7/90
32 */
33#ifndef _DDB_DB_BREAK_H_
34#define _DDB_DB_BREAK_H_
35
36#include <vm/vm_map.h>
37#include <machine/db_machdep.h>
38
39/*
40 * Breakpoint.
41 */
42
43struct db_breakpoint {
44 vm_map_t map; /* in this map */
45 db_addr_t address; /* set here */
46 int init_count; /* number of times to skip bkpt */
47 int count; /* current count */
48 int flags; /* flags: */
49#define BKPT_SINGLE_STEP 0x2 /* to simulate single step */
50#define BKPT_TEMP 0x4 /* temporary */
51 int bkpt_inst; /* saved instruction at bkpt */
52 struct db_breakpoint *link; /* link in in-use or free chain */
53};
54typedef struct db_breakpoint *db_breakpoint_t;
55
56extern db_breakpoint_t db_find_breakpoint();
57extern db_breakpoint_t db_find_breakpoint_here();
58extern void db_set_breakpoints();
59extern void db_clear_breakpoints();
60
61extern db_breakpoint_t db_set_temp_breakpoint(/* db_addr_t addr */);
62extern void db_delete_temp_breakpoint(/* db_breakpoint_t bkpt */);
63
64#endif _DDB_DB_BREAK_H_