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 29 /* 30 * Author: David B. Golub, Carnegie Mellon University 31 * Date: 7/90 32 */ 33 #ifndef _DDB_DB_BREAK_H_ 34 #define _DDB_DB_BREAK_H_ 35 36 /* 37 * Breakpoint. 38 */ 39 40 #ifndef BKPT_INST_TYPE 41 #define BKPT_INST_TYPE int 42 #endif 43 44 struct db_breakpoint { 45 vm_map_t map; /* in this map */ 46 db_addr_t address; /* set here */ 47 int init_count; /* number of times to skip bkpt */ 48 int count; /* current count */ 49 int flags; /* flags: */ 50 #define BKPT_SINGLE_STEP 0x2 /* to simulate single step */ 51 #define BKPT_TEMP 0x4 /* temporary */ 52 BKPT_INST_TYPE bkpt_inst; /* saved instruction at bkpt */ 53 struct db_breakpoint *link; /* link in in-use or free chain */ 54 }; 55 typedef struct db_breakpoint *db_breakpoint_t; 56 57 void db_clear_breakpoints(void); 58 db_breakpoint_t db_find_breakpoint_here(db_addr_t addr); 59 void db_set_breakpoints(void); 60 61 #endif /* !_DDB_DB_BREAK_H_ */ 62