/*      $NetBSD: db_break.h,v 1.20 2007/02/22 04:38:04 matt Exp $       */

/*
* 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 "AS IS"
* 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  [email protected]
*  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.
*
*      Author: David B. Golub, Carnegie Mellon University
*      Date:   7/90
*/

#ifndef _DDB_DB_BREAK_H_
#define _DDB_DB_BREAK_H_

#include <uvm/uvm_extern.h>

/*
* Breakpoints.
*/
typedef struct db_breakpoint {
       struct vm_map *map;                     /* in this map */
       db_addr_t address;              /* set here */
       int     init_count;             /* number of times to skip bkpt */
       int     count;                  /* current count */
       int     flags;                  /* flags: */
#define BKPT_SINGLE_STEP        0x2         /* to simulate single step */
#define BKPT_TEMP               0x4         /* temporary */
       db_expr_t bkpt_inst;            /* saved instruction at bkpt */
       struct db_breakpoint *link;     /* link in in-use or free chain */
} *db_breakpoint_t;

db_breakpoint_t db_find_breakpoint_here(db_addr_t);
void            db_set_breakpoints(void);
void            db_clear_breakpoints(void);
void            db_delete_cmd(db_expr_t, bool, db_expr_t, const char *);
void            db_breakpoint_cmd(db_expr_t, bool, db_expr_t, const char *);
void            db_listbreak_cmd(db_expr_t, bool, db_expr_t, const char *);
bool            db_map_equal(struct vm_map *, struct vm_map *);
bool            db_map_current(struct vm_map *);
struct vm_map  *db_map_addr(vaddr_t);

#endif  /* _DDB_DB_BREAK_H_ */