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_watch.h

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    1 /* 
    2  * Mach Operating System
    3  * Copyright (c) 1993,1991,1990 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 "AS IS"
   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@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 Mellon
   24  * the rights to redistribute these changes.
   25  */
   26 /*
   27  * HISTORY
   28  * $Log:        db_watch.h,v $
   29  * Revision 2.6  93/11/17  16:27:01  dbg
   30  *      Added ANSI function prototypes.
   31  *      [93/10/11            dbg]
   32  * 
   33  * Revision 2.5  91/10/09  16:04:47  af
   34  *      Changed "map" field of db_watchpoint structure to "task",
   35  *      and also changed parameters of function declarations.
   36  *      [91/08/29            tak]
   37  * 
   38  * Revision 2.4  91/05/14  15:37:46  mrt
   39  *      Correcting copyright
   40  * 
   41  * Revision 2.3  91/02/05  17:07:31  mrt
   42  *      Changed to new Mach copyright
   43  *      [91/01/31  16:20:09  mrt]
   44  * 
   45  * Revision 2.2  90/10/25  14:44:21  rwd
   46  *      Generalized the watchpoint support.
   47  *      [90/10/16            rwd]
   48  *      Created.
   49  *      [90/10/16            rpd]
   50  * 
   51  */
   52 /*
   53  *      Author: David B. Golub, Carnegie Mellon University
   54  *      Date:   10/90
   55  */
   56 
   57 #ifndef _DDB_DB_WATCH_H_
   58 #define _DDB_DB_WATCH_H_
   59 
   60 #include <mach/machine/vm_types.h>
   61 #include <kern/task.h>
   62 #include <vm/vm_map.h>
   63 #include <machine/db_machdep.h>
   64 
   65 /*
   66  * Watchpoint.
   67  */
   68 
   69 typedef struct db_watchpoint {
   70         task_t    task;                 /* in this map */
   71         db_addr_t loaddr;               /* from this address */
   72         db_addr_t hiaddr;               /* to this address */
   73         struct db_watchpoint *link;     /* link in in-use or free chain */
   74 } *db_watchpoint_t;
   75 
   76 /*
   77  *      Quick check for enabled watchpoints.
   78  */
   79 extern boolean_t        db_watchpoints_inserted;
   80 extern db_watchpoint_t  db_watchpoint_list;
   81 
   82 #define db_watchpoints_enabled() \
   83                 (db_watchpoint_list != 0 && db_watchpoints_inserted)
   84 
   85 extern boolean_t
   86 db_find_watchpoint(
   87         vm_map_t        map,
   88         db_addr_t       addr,
   89         db_regs_t *     regs);
   90 
   91 extern void db_set_watchpoints(void);
   92 extern void db_clear_watchpoints(void);
   93 
   94 extern void
   95 db_set_watchpoint(
   96         task_t          task,
   97         db_addr_t       addr,
   98         vm_size_t       size);
   99 
  100 extern void
  101 db_delete_watchpoint(
  102         task_t          task,
  103         db_addr_t       addr);
  104 
  105 extern void
  106 db_watchpoint_cmd(
  107         db_expr_t       addr,
  108         int             have_addr,
  109         db_expr_t       count,
  110         char *          modif);
  111 
  112 extern void
  113 db_deletewatch_cmd(
  114         db_expr_t       addr,
  115         int             have_addr,
  116         db_expr_t       count,
  117         char *          modif);
  118 
  119 extern void db_listwatch_cmd();
  120 
  121 #endif  /* _DDB_DB_WATCH_H_ */

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