FreeBSD/Linux Kernel Cross Reference
sys/ddb/db_break.h
1 /*-
2 * SPDX-License-Identifier: MIT-CMU
3 *
4 * Mach Operating System
5 * Copyright (c) 1991,1990 Carnegie Mellon University
6 * All Rights Reserved.
7 *
8 * Permission to use, copy, modify and distribute this software and its
9 * documentation is hereby granted, provided that both the copyright
10 * notice and this permission notice appear in all copies of the
11 * software, derivative works or modified versions, and any portions
12 * thereof, and that both notices appear in supporting documentation.
13 *
14 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
15 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
16 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
17 *
18 * Carnegie Mellon requests users of this software to return to
19 *
20 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
21 * School of Computer Science
22 * Carnegie Mellon University
23 * Pittsburgh PA 15213-3890
24 *
25 * any improvements or extensions that they make and grant Carnegie the
26 * rights to redistribute these changes.
27 *
28 * $FreeBSD$
29 */
30
31 /*
32 * Author: David B. Golub, Carnegie Mellon University
33 * Date: 7/90
34 */
35 #ifndef _DDB_DB_BREAK_H_
36 #define _DDB_DB_BREAK_H_
37
38 /*
39 * Breakpoint.
40 */
41
42 #ifndef BKPT_INST_TYPE
43 #define BKPT_INST_TYPE int
44 #endif
45
46 struct db_breakpoint {
47 vm_map_t map; /* in this map */
48 db_addr_t address; /* set here */
49 int init_count; /* number of times to skip bkpt */
50 int count; /* current count */
51 int flags; /* flags: */
52 #define BKPT_SINGLE_STEP 0x2 /* to simulate single step */
53 #define BKPT_TEMP 0x4 /* temporary */
54 BKPT_INST_TYPE bkpt_inst; /* saved instruction at bkpt */
55 struct db_breakpoint *link; /* link in in-use or free chain */
56 };
57 typedef struct db_breakpoint *db_breakpoint_t;
58
59 void db_clear_breakpoints(void);
60 db_breakpoint_t db_find_breakpoint_here(db_addr_t addr);
61 void db_set_breakpoints(void);
62
63 #endif /* !_DDB_DB_BREAK_H_ */
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