1 /*- 2 * Mach Operating System 3 * Copyright (c) 1991,1990 Carnegie Mellon University 4 * All Rights Reserved. 5 * 6 * Permission to use, copy, modify and distribute this software and its 7 * documentation is hereby granted, provided that both the copyright 8 * notice and this permission notice appear in all copies of the 9 * software, derivative works or modified versions, and any portions 10 * thereof, and that both notices appear in supporting documentation. 11 * 12 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS 13 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 14 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 15 * 16 * Carnegie Mellon requests users of this software to return to 17 * 18 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 19 * School of Computer Science 20 * Carnegie Mellon University 21 * Pittsburgh PA 15213-3890 22 * 23 * any improvements or extensions that they make and grant Carnegie the 24 * rights to redistribute these changes. 25 * 26 * $FreeBSD$ 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 #ifdef SOFTWARE_SSTEP 59 void db_delete_temp_breakpoint(db_breakpoint_t); 60 #endif 61 db_breakpoint_t db_find_breakpoint_here(db_addr_t addr); 62 void db_set_breakpoints(void); 63 #ifdef SOFTWARE_SSTEP 64 db_breakpoint_t db_set_temp_breakpoint(db_addr_t); 65 #endif 66 67 #endif /* !_DDB_DB_BREAK_H_ */ 68