sys/ddb/db_watch.h

/*
 * Mach Operating System
 * Copyright (c) 1991,1990 Carnegie Mellon University
 * All Rights Reserved.
 *
 * Permission to use, copy, modify and distribute this software and its
 * documentation is hereby granted, provided that both the copyright
 * notice and this permission notice appear in all copies of the
 * software, derivative works or modified versions, and any portions
 * thereof, and that both notices appear in supporting documentation.
 *
 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 *
 * Carnegie Mellon requests users of this software to return to
 *
 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 *  School of Computer Science
 *  Carnegie Mellon University
 *  Pittsburgh PA 15213-3890
 *
 * any improvements or extensions that they make and grant Carnegie the
 * rights to redistribute these changes.
 */
/*
 * HISTORY
 * $Log: db_watch.h,v $
 * Revision 1.1  1992/03/25  21:45:40  pace
 * Initial revision
 *
 * Revision 2.3  91/02/05  17:07:31  mrt
 *      Changed to new Mach copyright
 *      [91/01/31  16:20:09  mrt]
 *
 * Revision 2.2  90/10/25  14:44:21  rwd
 *      Generalized the watchpoint support.
 *      [90/10/16            rwd]
 *      Created.
 *      [90/10/16            rpd]
 *
 */
/*
 *      Author: David B. Golub, Carnegie Mellon University
 *      Date:   10/90
 */

#ifndef _DDB_DB_WATCH_
#define _DDB_DB_WATCH_

#include <vm/vm_map.h>
#include <machine/db_machdep.h>

/*
 * Watchpoint.
 */

typedef struct db_watchpoint {
        vm_map_t map;                   /* in this map */
        db_addr_t loaddr;               /* from this address */
        db_addr_t hiaddr;               /* to this address */
        struct db_watchpoint *link;     /* link in in-use or free chain */
} *db_watchpoint_t;

extern boolean_t db_find_watchpoint(/* vm_map_t map, db_addr_t addr,
                                     db_regs_t *regs */);
extern void db_set_watchpoints();
extern void db_clear_watchpoints();

extern void db_set_watchpoint(/* vm_map_t map, db_addr_t addr, vm_size_t size */);
extern void db_delete_watchpoint(/* vm_map_t map, db_addr_t addr */);
extern void db_list_watchpoints();

#endif  _DDB_DB_WATCH_