FreeBSD/Linux Kernel Cross Reference
sys/sys/boot_flag.h
1 /* $NetBSD: boot_flag.h,v 1.5 2005/12/11 12:25:20 christos Exp $ */
2
3 /*-
4 * Copyright (c) 2000 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by the NetBSD
18 * Foundation, Inc. and its contributors.
19 * 4. Neither the name of The NetBSD Foundation nor the names of its
20 * contributors may be used to endorse or promote products derived
21 * from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
25 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
26 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
27 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33 * POSSIBILITY OF SUCH DAMAGE.
34 */
35
36 #ifndef _SYS_BOOT_FLAG_H_
37 #define _SYS_BOOT_FLAG_H_
38
39 #include <sys/reboot.h>
40
41 /*
42 * Recognize standard boot arguments. If the flag is known, appropriate
43 * value is or'ed to retval, otherwise retval is left intact.
44 * Note that not all ports use all flags recognized here. This list is mere
45 * concatenation of all non-conflicting standard boot flags. Individual ports
46 * might use also other flags (see e.g. alpha).
47 */
48 #define BOOT_FLAG(arg, retval) do { \
49 switch (arg) { \
50 case 'a': /* ask for file name to boot from */ \
51 (retval) |= RB_ASKNAME; \
52 break; \
53 case 'b': /* always halt, never reboot */ \
54 (retval) |= RB_HALT; \
55 break; \
56 case 'c': /* userconf */ \
57 (retval) |= RB_USERCONF; \
58 break; \
59 case 'd': /* break into the kernel debugger ASAP (if compiled in) */ \
60 (retval) |= RB_KDB; \
61 break; \
62 case 'm': /* mini root present in memory */ \
63 (retval) |= RB_MINIROOT; \
64 break; \
65 case 'q': /* boot quietly */ \
66 (retval) |= AB_QUIET; \
67 break; \
68 case 's': /* boot to single user */ \
69 (retval) |= RB_SINGLE; \
70 break; \
71 case 'v': /* boot verbosely */ \
72 (retval) |= AB_VERBOSE; \
73 break; \
74 case 'x': /* boot with debugging messages */ \
75 (retval) |= AB_DEBUG; \
76 break; \
77 case 'z': /* boot silently */ \
78 (retval) |= AB_SILENT; \
79 break; \
80 default: /* something else, do nothing */ \
81 break; \
82 } /* switch */ \
83 \
84 } while (/* CONSTCOND */ 0)
85
86 #endif /* _SYS_BOOT_FLAG_H_ */
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