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freebsd/sys/ddb/db_break.h
Doug Rabson 3a0b4f259c Fill out some gaps in ia64 DDB support. This involves generalising DDB's
breakpoint handling slightly to cope with the fact that ia64 instructions
are not located on byte boundaries.
2001-09-15 11:06:07 +00:00

68 lines
2.0 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.
*
* $FreeBSD$
*/
/*
* Author: David B. Golub, Carnegie Mellon University
* Date: 7/90
*/
#ifndef _DDB_DB_BREAK_H_
#define _DDB_DB_BREAK_H_
/*
* Breakpoint.
*/
#ifndef BKPT_INST_TYPE
#define BKPT_INST_TYPE int
#endif
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 */
BKPT_INST_TYPE bkpt_inst; /* saved instruction at bkpt */
struct db_breakpoint *link; /* link in in-use or free chain */
};
typedef struct db_breakpoint *db_breakpoint_t;
void db_clear_breakpoints __P((void));
#ifdef SOFTWARE_SSTEP
void db_delete_temp_breakpoint __P((db_breakpoint_t));
#endif
db_breakpoint_t db_find_breakpoint_here __P((db_addr_t addr));
void db_set_breakpoints __P((void));
#ifdef SOFTWARE_SSTEP
db_breakpoint_t db_set_temp_breakpoint __P((db_addr_t));
#endif
#endif /* !_DDB_DB_BREAK_H_ */