1139747Simp/*-
24Srgrimes * Mach Operating System
34Srgrimes * Copyright (c) 1991,1990 Carnegie Mellon University
44Srgrimes * All Rights Reserved.
58876Srgrimes *
64Srgrimes * Permission to use, copy, modify and distribute this software and its
74Srgrimes * documentation is hereby granted, provided that both the copyright
84Srgrimes * notice and this permission notice appear in all copies of the
94Srgrimes * software, derivative works or modified versions, and any portions
104Srgrimes * thereof, and that both notices appear in supporting documentation.
118876Srgrimes *
128876Srgrimes * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
134Srgrimes * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
144Srgrimes * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
158876Srgrimes *
164Srgrimes * Carnegie Mellon requests users of this software to return to
178876Srgrimes *
184Srgrimes *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
194Srgrimes *  School of Computer Science
204Srgrimes *  Carnegie Mellon University
214Srgrimes *  Pittsburgh PA 15213-3890
228876Srgrimes *
234Srgrimes * any improvements or extensions that they make and grant Carnegie the
244Srgrimes * rights to redistribute these changes.
254Srgrimes *
2650477Speter * $FreeBSD$
274Srgrimes */
28623Srgrimes
294Srgrimes/*
304Srgrimes * 	Author: David B. Golub, Carnegie Mellon University
314Srgrimes *	Date:	7/90
324Srgrimes */
334Srgrimes
3412472Sbde#ifndef _DDB_DB_VARIABLES_H_
3512472Sbde#define	_DDB_DB_VARIABLES_H_
364Srgrimes
374Srgrimes/*
384Srgrimes * Debugger variables.
394Srgrimes */
4012472Sbdestruct db_variable;
4192756Salfredtypedef	int	db_varfcn_t(struct db_variable *vp, db_expr_t *valuep, int op);
424Srgrimesstruct db_variable {
434Srgrimes	char	*name;		/* Name of variable */
4437504Sbde	db_expr_t *valuep;	/* value of variable */
454Srgrimes				/* function to call when reading/writing */
4612472Sbde	db_varfcn_t *fcn;
474Srgrimes#define DB_VAR_GET	0
484Srgrimes#define DB_VAR_SET	1
494Srgrimes};
5012472Sbde#define	FCN_NULL	((db_varfcn_t *)0)
514Srgrimes
524Srgrimesextern struct db_variable	db_regs[];	/* machine registers */
534Srgrimesextern struct db_variable	*db_eregs;
544Srgrimes
55195699Srwatsonextern db_varfcn_t	db_var_curcpu;		/* DPCPU default CPU */
56195699Srwatsonextern db_varfcn_t	db_var_curvnet;		/* Default vnet */
57195699Srwatsonextern db_varfcn_t	db_var_db_cpu;		/* DPCPU active CPU */
58195699Srwatsonextern db_varfcn_t	db_var_db_vnet;		/* Active vnet */
59195699Srwatson
60131952Smarcelint db_read_variable(struct db_variable *, db_expr_t *);
61131952Smarcelint db_write_variable(struct db_variable *, db_expr_t);
62798Swollman
6312472Sbde#endif /* _!DDB_DB_VARIABLES_H_ */
64