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freebsd/sys/ddb/db_break.h
1993-06-12 14:58:17 +00:00

85 lines
2.5 KiB
C

/*
* 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_break.h,v $
* Revision 1.1 1992/03/25 21:44:59 pace
* Initial revision
*
* Revision 2.4 91/02/05 17:06:06 mrt
* Changed to new Mach copyright
* [91/01/31 16:17:10 mrt]
*
* Revision 2.3 90/10/25 14:43:40 rwd
* Added map field to breakpoints.
* [90/10/18 rpd]
*
* Revision 2.2 90/08/27 21:50:00 dbg
* Modularized typedef names.
* [90/08/20 af]
* Add external defintions.
* [90/08/07 dbg]
* Created.
* [90/07/25 dbg]
*
*/
/*
* Author: David B. Golub, Carnegie Mellon University
* Date: 7/90
*/
#ifndef _DDB_DB_BREAK_H_
#define _DDB_DB_BREAK_H_
#include <vm/vm_map.h>
#include <machine/db_machdep.h>
/*
* Breakpoint.
*/
struct db_breakpoint {
vm_map_t 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 */
int bkpt_inst; /* saved instruction at bkpt */
struct db_breakpoint *link; /* link in in-use or free chain */
};
typedef struct db_breakpoint *db_breakpoint_t;
extern db_breakpoint_t db_find_breakpoint();
extern db_breakpoint_t db_find_breakpoint_here();
extern void db_set_breakpoints();
extern void db_clear_breakpoints();
extern db_breakpoint_t db_set_temp_breakpoint(/* db_addr_t addr */);
extern void db_delete_temp_breakpoint(/* db_breakpoint_t bkpt */);
#endif _DDB_DB_BREAK_H_