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db_variables.h revision 1.2 
      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 (at) 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 /*
     27  * $Id: db_variables.h,v 1.2 1993/05/20 03:39:37 cgd Exp $
     28  *
     29  * HISTORY
     30  * $Log: db_variables.h,v $
     31  * Revision 1.2  1993/05/20 03:39:37  cgd
     32  * add explicit rcs id
     33  *
     34  * Revision 1.1.1.1  1993/03/21  09:46:27  cgd
     35  * initial import of 386bsd-0.1 sources
     36  *
     37  * Revision 1.1  1992/03/25  21:45:35  pace
     38  * Initial revision
     39  *
     40  * Revision 2.3  91/02/05  17:07:23  mrt
     41  * 	Changed to new Mach copyright
     42  * 	[91/01/31  16:19:54  mrt]
     43  *
     44  * Revision 2.2  90/08/27  21:53:40  dbg
     45  * 	Modularized typedef name.  Documented the calling sequence of
     46  * 	the (optional) access function of a variable.  Now the valuep
     47  * 	field can be made opaque, eg be an offset that fcn() resolves.
     48  * 	[90/08/20            af]
     49  *
     50  * 	Created.
     51  * 	[90/07/25            dbg]
     52  *
     53  */
     54 /*
     55  * 	Author: David B. Golub, Carnegie Mellon University
     56  *	Date:	7/90
     57  */
     58 
     59 #ifndef	_DB_VARIABLES_H_
     60 #define	_DB_VARIABLES_H_
     61 
     62 /*
     63  * Debugger variables.
     64  */
     65 struct db_variable {
     66 	char	*name;		/* Name of variable */
     67 	int	*valuep;	/* value of variable */
     68 				/* function to call when reading/writing */
     69 	int	(*fcn)(/* db_variable *vp, db_expr_t *valuep, int op */);
     70 #define DB_VAR_GET	0
     71 #define DB_VAR_SET	1
     72 };
     73 #define	FCN_NULL	((int (*)())0)
     74 
     75 extern struct db_variable	db_vars[];	/* debugger variables */
     76 extern struct db_variable	*db_evars;
     77 extern struct db_variable	db_regs[];	/* machine registers */
     78 extern struct db_variable	*db_eregs;
     79 
     80 #endif	/* _DB_VARIABLES_H_ */
     81