sys/ddb/db_variables.h

   1 /*      $NetBSD: db_variables.h,v 1.14 2005/12/11 12:20:53 christos Exp $       */
   2
   3 /*
   4  * Mach Operating System
   5  * Copyright (c) 1991,1990 Carnegie Mellon University
   6  * All Rights Reserved.
   7  *
   8  * Permission to use, copy, modify and distribute this software and its
   9  * documentation is hereby granted, provided that both the copyright
  10  * notice and this permission notice appear in all copies of the
  11  * software, derivative works or modified versions, and any portions
  12  * thereof, and that both notices appear in supporting documentation.
  13  *
  14  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  15  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  16  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  17  *
  18  * Carnegie Mellon requests users of this software to return to
  19  *
  20  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  21  *  School of Computer Science
  22  *  Carnegie Mellon University
  23  *  Pittsburgh PA 15213-3890
  24  *
  25  * any improvements or extensions that they make and grant Carnegie the
  26  * rights to redistribute these changes.
  27  *
  28  *      Author: David B. Golub, Carnegie Mellon University
  29  *      Date:   7/90
  30  */
  31
  32 #ifndef _DB_VARIABLES_H_
  33 #define _DB_VARIABLES_H_
  34
  35 /*
  36  * Debugger variables.
  37  */
  38 struct db_variable {
  39         const char *name;       /* Name of variable */
  40         long    *valuep;        /* value of variable */
  41                                 /* function to call when reading/writing */
  42         int     (*fcn)(const struct db_variable *, db_expr_t *, int);
  43         const char      *modif;
  44 #define DB_VAR_GET      0
  45 #define DB_VAR_SET      1
  46 };
  47 #define FCN_NULL ((int (*)(const struct db_variable *, db_expr_t *, int))0)
  48
  49 extern const struct db_variable db_vars[];      /* debugger variables */
  50 extern const struct db_variable * const db_evars;
  51 extern const struct db_variable db_regs[];      /* machine registers */
  52 extern const struct db_variable * const db_eregs;
  53
  54 int     db_get_variable(db_expr_t *);
  55 int     db_set_variable(db_expr_t);
  56 void    db_read_variable(const struct db_variable *, db_expr_t *);
  57 void    db_write_variable(const struct db_variable *, db_expr_t *);
  58 void    db_set_cmd(db_expr_t, bool, db_expr_t, const char *);
  59
  60 #endif  /* _DB_VARIABLES_H_ */