1 /*- 2 * SPDX-License-Identifier: MIT-CMU 3 * 4 * Mach Operating System 5 * Copyright (c) 1991,1990 Carnegie Mellon University 6 * All Rights Reserved. 7 * 8 * Permission to use, copy, modify and distribute this software and its 9 * documentation is hereby granted, provided that both the copyright 10 * notice and this permission notice appear in all copies of the 11 * software, derivative works or modified versions, and any portions 12 * thereof, and that both notices appear in supporting documentation. 13 * 14 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS 15 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 16 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 17 * 18 * Carnegie Mellon requests users of this software to return to 19 * 20 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 21 * School of Computer Science 22 * Carnegie Mellon University 23 * Pittsburgh PA 15213-3890 24 * 25 * any improvements or extensions that they make and grant Carnegie the 26 * rights to redistribute these changes. 27 * 28 * $FreeBSD$ 29 */ 30 31 /* 32 * Author: David B. Golub, Carnegie Mellon University 33 * Date: 7/90 34 */ 35 #ifndef _DDB_DB_BREAK_H_ 36 #define _DDB_DB_BREAK_H_ 37 38 /* 39 * Breakpoint. 40 */ 41 42 #ifndef BKPT_INST_TYPE 43 #define BKPT_INST_TYPE int 44 #endif 45 46 struct db_breakpoint { 47 vm_map_t map; /* in this map */ 48 db_addr_t address; /* set here */ 49 int init_count; /* number of times to skip bkpt */ 50 int count; /* current count */ 51 int flags; /* flags: */ 52 #define BKPT_SINGLE_STEP 0x2 /* to simulate single step */ 53 #define BKPT_TEMP 0x4 /* temporary */ 54 BKPT_INST_TYPE bkpt_inst; /* saved instruction at bkpt */ 55 struct db_breakpoint *link; /* link in in-use or free chain */ 56 }; 57 typedef struct db_breakpoint *db_breakpoint_t; 58 59 void db_clear_breakpoints(void); 60 db_breakpoint_t db_find_breakpoint_here(db_addr_t addr); 61 void db_set_breakpoints(void); 62 63 #endif /* !_DDB_DB_BREAK_H_ */ 64