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