db_variables.h revision 195699
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: head/sys/ddb/db_variables.h 195699 2009-07-14 22:48:30Z rwatson $ 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 */ 40struct db_variable; 41typedef int db_varfcn_t(struct db_variable *vp, db_expr_t *valuep, int op); 42struct 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 52extern struct db_variable db_regs[]; /* machine registers */ 53extern struct db_variable *db_eregs; 54 55extern db_varfcn_t db_var_curcpu; /* DPCPU default CPU */ 56extern db_varfcn_t db_var_curvnet; /* Default vnet */ 57extern db_varfcn_t db_var_db_cpu; /* DPCPU active CPU */ 58extern db_varfcn_t db_var_db_vnet; /* Active vnet */ 59 60int db_read_variable(struct db_variable *, db_expr_t *); 61int db_write_variable(struct db_variable *, db_expr_t); 62 63#endif /* _!DDB_DB_VARIABLES_H_ */ 64