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/* $OpenBSD: boot_flag.h,v 1.3 2011/03/23 16:54:37 pirofti Exp $ */
/* $NetBSD: boot_flag.h,v 1.3 2001/07/01 02:56:21 gmcgarry Exp $ */
/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* 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.
*/
#ifndef _MACHINE_BOOT_FLAG_H_
#define _MACHINE_BOOT_FLAG_H_
#include <sys/reboot.h>
/*
* Recognize standard boot arguments. If the flag is known, appropriate
* value is or'ed to retval, otherwise retval is left intact.
* Note that not all ports use all flags recognized here. This list is mere
* concatenation of all non-conflicting standard boot flags. Individual ports
* might use also other flags (see e.g. alpha).
*/
#define BOOT_FLAG(arg, retval) do { \
switch (arg) { \
case 'a': /* ask for file name to boot from */ \
(retval) |= RB_ASKNAME; \
break; \
case 'b': /* always halt, never reboot */ \
(retval) |= RB_HALT; \
break; \
case 'c': /* userconf */ \
(retval) |= RB_CONFIG; \
break; \
case 'd': /* break into the kernel debugger ASAP (if compiled in) */ \
(retval) |= RB_KDB; \
break; \
case 'm': /* mini root present in memory */ \
(retval) |= RB_MINIROOT; \
break; \
case 's': /* boot to single user */ \
(retval) |= RB_SINGLE; \
break; \
default: /* something else, do nothing */ \
break; \
} /* switch */ \
\
} while (/* CONSTCOND */ 0)
#endif /* _MACHINE_BOOT_FLAG_H_ */
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