db_break.h revision 5
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/* 27 * HISTORY 28 * $Log: db_break.h,v $ 29 * Revision 1.1 1992/03/25 21:44:59 pace 30 * Initial revision 31 * 32 * Revision 2.4 91/02/05 17:06:06 mrt 33 * Changed to new Mach copyright 34 * [91/01/31 16:17:10 mrt] 35 * 36 * Revision 2.3 90/10/25 14:43:40 rwd 37 * Added map field to breakpoints. 38 * [90/10/18 rpd] 39 * 40 * Revision 2.2 90/08/27 21:50:00 dbg 41 * Modularized typedef names. 42 * [90/08/20 af] 43 * Add external defintions. 44 * [90/08/07 dbg] 45 * Created. 46 * [90/07/25 dbg] 47 * 48 */ 49/* 50 * Author: David B. Golub, Carnegie Mellon University 51 * Date: 7/90 52 */ 53#ifndef _DDB_DB_BREAK_H_ 54#define _DDB_DB_BREAK_H_ 55 56#include <vm/vm_map.h> 57#include <machine/db_machdep.h> 58 59/* 60 * Breakpoint. 61 */ 62 63struct db_breakpoint { 64 vm_map_t map; /* in this map */ 65 db_addr_t address; /* set here */ 66 int init_count; /* number of times to skip bkpt */ 67 int count; /* current count */ 68 int flags; /* flags: */ 69#define BKPT_SINGLE_STEP 0x2 /* to simulate single step */ 70#define BKPT_TEMP 0x4 /* temporary */ 71 int bkpt_inst; /* saved instruction at bkpt */ 72 struct db_breakpoint *link; /* link in in-use or free chain */ 73}; 74typedef struct db_breakpoint *db_breakpoint_t; 75 76extern db_breakpoint_t db_find_breakpoint(); 77extern db_breakpoint_t db_find_breakpoint_here(); 78extern void db_set_breakpoints(); 79extern void db_clear_breakpoints(); 80 81extern db_breakpoint_t db_set_temp_breakpoint(/* db_addr_t addr */); 82extern void db_delete_temp_breakpoint(/* db_breakpoint_t bkpt */); 83 84#endif _DDB_DB_BREAK_H_ 85