text: /*	$NetBSD: db_variables.h,v 1.6 1997/02/04 00:33:33 cgd Exp $	*/
  
  /* 
   * Mach Operating System
   * Copyright (c) 1991,1990 Carnegie Mellon University
   * All Rights Reserved.
   * 
   * Permission to use, copy, modify and distribute this software and its
   * documentation is hereby granted, provided that both the copyright
   * notice and this permission notice appear in all copies of the
   * software, derivative works or modified versions, and any portions
   * thereof, and that both notices appear in supporting documentation.
   * 
   * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS 
   * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
   * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
   * 
   * Carnegie Mellon requests users of this software to return to
   * 
   *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
   *  School of Computer Science
   *  Carnegie Mellon University
   *  Pittsburgh PA 15213-3890
   * 
   * any improvements or extensions that they make and grant Carnegie the
   * rights to redistribute these changes.
   *
   * 	Author: David B. Golub, Carnegie Mellon University
   *	Date:	7/90
   */
  
  #ifndef	_DB_VARIABLES_H_
  #define	_DB_VARIABLES_H_
  
  /*
   * Debugger variables.
   */
  struct db_variable {
  	char	*name;		/* Name of variable */
  	long	*valuep;	/* value of variable */
  				/* function to call when reading/writing */
  	int	(*fcn) __P((struct db_variable *, db_expr_t *, int));
  #define DB_VAR_GET	0
  #define DB_VAR_SET	1
  };
  #define	FCN_NULL ((int (*) __P((struct db_variable *, db_expr_t *, int)))0)
  
  extern struct db_variable	db_vars[];	/* debugger variables */
  extern struct db_variable	*db_evars;
  extern struct db_variable	db_regs[];	/* machine registers */
  extern struct db_variable	*db_eregs;
  
  int db_find_variable __P((struct db_variable **));
  int db_get_variable __P((db_expr_t *));
  int db_set_variable __P((db_expr_t));
  void db_read_variable __P((struct db_variable *, db_expr_t *));
  void db_write_variable __P((struct db_variable *, db_expr_t *));
  void db_set_cmd __P((db_expr_t, int, db_expr_t, char *));
  
  #endif	/* _DB_VARIABLES_H_ */
  