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 * $Id$ 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 #include <vm/vm_map.h> 37 #include <machine/db_machdep.h> 38 39 /* 40 * Breakpoint. 41 */ 42 43 struct db_breakpoint { 44 vm_map_t map; /* in this map */ 45 db_addr_t address; /* set here */ 46 int init_count; /* number of times to skip bkpt */ 47 int count; /* current count */ 48 int flags; /* flags: */ 49 #define BKPT_SINGLE_STEP 0x2 /* to simulate single step */ 50 #define BKPT_TEMP 0x4 /* temporary */ 51 int bkpt_inst; /* saved instruction at bkpt */ 52 struct db_breakpoint *link; /* link in in-use or free chain */ 53 }; 54 typedef struct db_breakpoint *db_breakpoint_t; 55 56 extern db_breakpoint_t db_find_breakpoint(); 57 extern db_breakpoint_t db_find_breakpoint_here(); 58 extern void db_set_breakpoints(); 59 extern void db_clear_breakpoints(); 60 61 extern db_breakpoint_t db_set_temp_breakpoint(/* db_addr_t addr */); 62 extern void db_delete_temp_breakpoint(/* db_breakpoint_t bkpt */); 63 64 #endif _DDB_DB_BREAK_H_ 65