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 * $FreeBSD: src/sys/ddb/db_variables.h,v 1.14 2005/01/06 01:34:41 imp Exp $
27 */
28
29 /*
30 * Author: David B. Golub, Carnegie Mellon University
31 * Date: 7/90
32 */
33
34 #ifndef _DDB_DB_VARIABLES_H_
35 #define _DDB_DB_VARIABLES_H_
36
37 /*
38 * Debugger variables.
39 */
40 struct db_variable;
41 typedef int db_varfcn_t(struct db_variable *vp, db_expr_t *valuep, int op);
42 struct db_variable {
43 char *name; /* Name of variable */
44 db_expr_t *valuep; /* value of variable */
45 /* function to call when reading/writing */
46 db_varfcn_t *fcn;
47 #define DB_VAR_GET 0
48 #define DB_VAR_SET 1
49 };
50 #define FCN_NULL ((db_varfcn_t *)0)
51
52 extern struct db_variable db_regs[]; /* machine registers */
53 extern struct db_variable *db_eregs;
54
55 int db_read_variable(struct db_variable *, db_expr_t *);
56 int db_write_variable(struct db_variable *, db_expr_t);
57
58 #endif /* _!DDB_DB_VARIABLES_H_ */
59
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