NetBSD/sys/ddb/db_command.h

62 lines
2.0 KiB
C

/* $NetBSD: db_command.h,v 1.22 2002/02/15 07:33:50 simonb Exp $ */
/*
* Mach Operating System
* Copyright (c) 1991,1990 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*
* Author: David B. Golub, Carnegie Mellon University
* Date: 7/90
*/
/*
* Command loop declarations.
*/
struct db_command;
void db_skip_to_eol(void);
void db_command_loop(void);
void db_error(char *);
extern db_addr_t db_dot; /* current location */
extern db_addr_t db_last_addr; /* last explicit address typed */
extern db_addr_t db_prev; /* last address examined
or written */
extern db_addr_t db_next; /* next address to be examined
or written */
/*
* Command table
*/
struct db_command {
const char *name; /* command name */
/* function to call */
void (*fcn)(db_expr_t, int, db_expr_t, char *);
int flag; /* extra info: */
#define CS_OWN 0x1 /* non-standard syntax */
#define CS_MORE 0x2 /* standard syntax, but may have other
words at end */
#define CS_SET_DOT 0x100 /* set dot after command */
const struct db_command *more; /* another level of command */
};