2 * Mach Operating System
3 * Copyright (c) 1991,1990 Carnegie Mellon University
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.
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.
16 * Carnegie Mellon requests users of this software to return to
18 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
19 * School of Computer Science
20 * Carnegie Mellon University
21 * Pittsburgh PA 15213-3890
23 * any improvements or extensions that they make and grant Carnegie the
24 * rights to redistribute these changes.
30 * Author: David B. Golub, Carnegie Mellon University
34 #ifndef _DDB_DB_VARIABLES_H_
35 #define _DDB_DB_VARIABLES_H_
41 typedef int db_varfcn_t(struct db_variable *vp, db_expr_t *valuep, int op);
43 char *name; /* Name of variable */
44 db_expr_t *valuep; /* value of variable */
45 /* function to call when reading/writing */
50 #define FCN_NULL ((db_varfcn_t *)0)
52 extern struct db_variable db_regs[]; /* machine registers */
53 extern struct db_variable *db_eregs;
55 extern db_varfcn_t db_var_curcpu; /* DPCPU default CPU */
56 extern db_varfcn_t db_var_curvnet; /* Default vnet */
57 extern db_varfcn_t db_var_db_cpu; /* DPCPU active CPU */
58 extern db_varfcn_t db_var_db_vnet; /* Active vnet */
60 int db_read_variable(struct db_variable *, db_expr_t *);
61 int db_write_variable(struct db_variable *, db_expr_t);
63 #endif /* _!DDB_DB_VARIABLES_H_ */