NetBSD/sys/ddb/db_command.h

152 lines
5.1 KiB
C

/* $NetBSD: db_command.h,v 1.35 2009/03/07 22:02:17 ad Exp $ */
/*-
* Copyright (c) 1996, 1997, 1998, 1999, 2002 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Adam Hamsik.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* 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
*/
#ifndef _DDB_COMMAND_
#define _DDB_COMMAND_
void db_skip_to_eol(void);
void db_command_loop(void);
void db_error(const char *) __dead;
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 */
extern char db_cmd_on_enter[];
struct db_command;
/*
* Macro include help when DDB_VERBOSE_HELP option(9) is used
*/
#ifdef DDB_VERBOSE_HELP
#define DDB_ADD_CMD(name,funct,type,cmd_descr,cmd_arg,arg_desc)\
name,funct,type,cmd_descr,cmd_arg,arg_desc
#else
#define DDB_ADD_CMD(name,funct,type,cmd_descr,cmd_arg,arg_desc)\
name,funct,type
#endif
/*
* we have two types of lists one for base commands like reboot
* and another list for show subcommands.
*/
#define DDB_BASE_CMD 0
#define DDB_SHOW_CMD 1
#define DDB_MACH_CMD 2
int db_register_tbl(uint8_t, const struct db_command *);
int db_unregister_tbl(uint8_t, const struct db_command *);
/*
* Command table
*/
struct db_command {
const char *name; /* command name */
/* function to call */
void (*fcn)(db_expr_t, bool, db_expr_t, const char *);
/*
* Flag is used for modifing command behaviour.
* CS_OWN && CS_MORE are specify type of command arguments.
* CS_OWN commandmanage arguments in own way.
* CS_MORE db_command() prepare argument list.
*
* CS_COMPAT is set for all level 2 commands with level 3 childs (show all pages)
*
* CS_SHOW identify show command in BASE command list
* CS_MACH identify mach command in BASE command list
*
* CS_SET_DOT specify if this command is put to last added command memory.
* CS_NOREPEAT this command does not repeat
*/
uint16_t 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_COMPAT 0x4 /* is set for compatibilty with old
ddb versions*/
#define CS_SHOW 0x8 /* select show list */
#define CS_MACH 0x10 /* select machine dependent list */
#define CS_SET_DOT 0x100 /* set dot after command */
#define CS_NOREPEAT 0x200 /* don't set last_command */
#ifdef DDB_VERBOSE_HELP
const char *cmd_descr; /* description of command */
const char *cmd_arg; /* command arguments */
const char *cmd_arg_help; /* arguments description */
#endif
};
void *db_alloc(size_t);
void *db_zalloc(size_t);
void db_free(void *, size_t);
#endif /*_DDB_COMMAND_*/