db_variables.h revision 798 
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 *	$Id: db_variables.h,v 1.2 1993/10/16 16:47:31 rgrimes Exp $
27 */
28
29/*
30 * 	Author: David B. Golub, Carnegie Mellon University
31 *	Date:	7/90
32 */
33
34#ifndef	_DB_VARIABLES_H_
35#define	_DB_VARIABLES_H_
36
37/*
38 * Debugger variables.
39 */
40struct db_variable {
41	char	*name;		/* Name of variable */
42	int	*valuep;	/* value of variable */
43				/* function to call when reading/writing */
44	int	(*fcn)(/* db_variable *vp, db_expr_t *valuep, int op */);
45#define DB_VAR_GET	0
46#define DB_VAR_SET	1
47};
48#define	FCN_NULL	((int (*)())0)
49
50extern struct db_variable	db_vars[];	/* debugger variables */
51extern struct db_variable	*db_evars;
52extern struct db_variable	db_regs[];	/* machine registers */
53extern struct db_variable	*db_eregs;
54
55extern void db_read_variable(struct db_variable *, db_expr_t *);
56
57#endif	/* _DB_VARIABLES_H_ */
58