1 /* $NetBSD: db_command.h,v 1.22 2002/02/15 07:33:50 simonb Exp $ */ 2 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 "AS IS" 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 * Author: David B. Golub, Carnegie Mellon University 29 * Date: 7/90 30 */ 31 32 /* 33 * Command loop declarations. 34 */ 35 struct db_command; 36 37 void db_skip_to_eol(void); 38 void db_command_loop(void); 39 void db_error(char *); 40 41 extern db_addr_t db_dot; /* current location */ 42 extern db_addr_t db_last_addr; /* last explicit address typed */ 43 extern db_addr_t db_prev; /* last address examined 44 or written */ 45 extern db_addr_t db_next; /* next address to be examined 46 or written */ 47 48 /* 49 * Command table 50 */ 51 struct db_command { 52 const char *name; /* command name */ 53 /* function to call */ 54 void (*fcn)(db_expr_t, int, db_expr_t, char *); 55 int flag; /* extra info: */ 56 #define CS_OWN 0x1 /* non-standard syntax */ 57 #define CS_MORE 0x2 /* standard syntax, but may have other 58 words at end */ 59 #define CS_SET_DOT 0x100 /* set dot after command */ 60 const struct db_command *more; /* another level of command */ 61 }; 62