The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/ddb/db_variables.h

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    1 /*      $NetBSD: db_variables.h,v 1.12 2002/02/15 07:33:54 simonb 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         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, int, db_expr_t, char *);
   59 
   60 #endif  /* _DB_VARIABLES_H_ */

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