/*      $NetBSD: db_variables.h,v 1.16 2017/12/28 17:51:19 christos Exp $       */

/*
 * Mach Operating System
 * Copyright (c) 1991,1990 Carnegie Mellon University
 * All Rights Reserved.
 *
 * Permission to use, copy, modify and distribute this software and its
 * documentation is hereby granted, provided that both the copyright
 * notice and this permission notice appear in all copies of the
 * software, derivative works or modified versions, and any portions
 * thereof, and that both notices appear in supporting documentation.
 *
 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 *
 * Carnegie Mellon requests users of this software to return to
 *
 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 *  School of Computer Science
 *  Carnegie Mellon University
 *  Pittsburgh PA 15213-3890
 *
 * any improvements or extensions that they make and grant Carnegie the
 * rights to redistribute these changes.
 *
 *      Author: David B. Golub, Carnegie Mellon University
 *      Date:   7/90
 */

#ifndef _DB_VARIABLES_H_
#define _DB_VARIABLES_H_

/*
 * Debugger variables.
 */
struct db_variable {
        const char *name;       /* Name of variable */
        void    *valuep;        /* value of variable */
                                /* function to call when reading/writing */
        int     (*fcn)(const struct db_variable *, db_expr_t *, int);
        const char      *modif;
#define DB_VAR_GET      0
#define DB_VAR_SET      1
};
#define FCN_NULL ((int (*)(const struct db_variable *, db_expr_t *, int))0)

extern const struct db_variable db_vars[];      /* debugger variables */
extern const struct db_variable * const db_evars;
extern const struct db_variable db_regs[];      /* machine registers */
extern const struct db_variable * const db_eregs;

int     db_get_variable(db_expr_t *);
int     db_set_variable(db_expr_t);
void    db_read_variable(const struct db_variable *, db_expr_t *);
void    db_write_variable(const struct db_variable *, db_expr_t *);
void    db_set_cmd(db_expr_t, bool, db_expr_t, const char *);

#endif  /* _DB_VARIABLES_H_ */