FreeBSD/Linux Kernel Cross Reference
sys/sys/boot_flag.h
1 /* $NetBSD: boot_flag.h,v 1.7 2008/04/29 19:16:08 ad 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 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #ifndef _SYS_BOOT_FLAG_H_
30 #define _SYS_BOOT_FLAG_H_
31
32 #include <sys/reboot.h>
33
34 /*
35 * Recognize standard boot arguments. If the flag is known, appropriate
36 * value is or'ed to retval, otherwise retval is left intact.
37 * Note that not all ports use all flags recognized here. This list is mere
38 * concatenation of all non-conflicting standard boot flags. Individual ports
39 * might use also other flags (see e.g. alpha).
40 */
41 #define BOOT_FLAG(arg, retval) do { \
42 switch (arg) { \
43 case '1': /* machine dependent flag */ \
44 (retval) |= RB_MD1; \
45 break; \
46 case '2': /* machine dependent flag */ \
47 (retval) |= RB_MD2; \
48 break; \
49 case '3': /* machine dependent flag */ \
50 (retval) |= RB_MD3; \
51 break; \
52 case '4': /* machine dependent flag */ \
53 (retval) |= RB_MD4; \
54 break; \
55 case 'a': /* ask for file name to boot from */ \
56 (retval) |= RB_ASKNAME; \
57 break; \
58 case 'b': /* always halt, never reboot */ \
59 (retval) |= RB_HALT; \
60 break; \
61 case 'c': /* userconf */ \
62 (retval) |= RB_USERCONF; \
63 break; \
64 case 'd': /* break into the kernel debugger ASAP (if compiled in) */ \
65 (retval) |= RB_KDB; \
66 break; \
67 case 'm': /* mini root present in memory */ \
68 (retval) |= RB_MINIROOT; \
69 break; \
70 case 'q': /* boot quietly */ \
71 (retval) |= AB_QUIET; \
72 break; \
73 case 's': /* boot to single user */ \
74 (retval) |= RB_SINGLE; \
75 break; \
76 case 'v': /* boot verbosely */ \
77 (retval) |= AB_VERBOSE; \
78 break; \
79 case 'x': /* boot with debugging messages */ \
80 (retval) |= AB_DEBUG; \
81 break; \
82 case 'z': /* boot silently */ \
83 (retval) |= AB_SILENT; \
84 break; \
85 default: /* something else, do nothing */ \
86 break; \
87 } /* switch */ \
88 \
89 } while (/* CONSTCOND */ 0)
90
91 #endif /* _SYS_BOOT_FLAG_H_ */
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