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 * $FreeBSD$ 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