db_variables.h

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    1 /*-
    2  * SPDX-License-Identifier: MIT-CMU
    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
   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  * $FreeBSD$
   29  */
   30 
   31 /*
   32  *      Author: David B. Golub, Carnegie Mellon University
   33  *      Date:   7/90
   34  */
   35 
   36 #ifndef _DDB_DB_VARIABLES_H_
   37 #define _DDB_DB_VARIABLES_H_
   38 
   39 /*
   40  * Debugger variables.
   41  */
   42 struct db_variable;
   43 typedef int     db_varfcn_t(struct db_variable *vp, db_expr_t *valuep, int op);
   44 struct db_variable {
   45         char    *name;          /* Name of variable */
   46         db_expr_t *valuep;      /* value of variable */
   47                                 /* function to call when reading/writing */
   48         db_varfcn_t *fcn;
   49 #define DB_VAR_GET      0
   50 #define DB_VAR_SET      1
   51 };
   52 #define FCN_NULL        ((db_varfcn_t *)0)
   53 
   54 extern struct db_variable       db_regs[];      /* machine registers */
   55 extern struct db_variable       *db_eregs;
   56 
   57 extern db_varfcn_t      db_var_curcpu;          /* DPCPU default CPU */
   58 extern db_varfcn_t      db_var_curvnet;         /* Default vnet */
   59 extern db_varfcn_t      db_var_db_cpu;          /* DPCPU active CPU */
   60 extern db_varfcn_t      db_var_db_vnet;         /* Active vnet */
   61 
   62 int db_read_variable(struct db_variable *, db_expr_t *);
   63 int db_write_variable(struct db_variable *, db_expr_t);
   64 
   65 #endif /* _!DDB_DB_VARIABLES_H_ */

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

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