boot_flag.h

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    1 /* $NetBSD: boot_flag.h,v 1.4 2003/11/03 16:39:07 thorpej 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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FreeBSD/Linux Kernel Cross Reference sys/sys/boot_flag.h

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sys/sys/boot_flag.h