94 lines
2.9 KiB
C
94 lines
2.9 KiB
C
/* $NetBSD: boot.c,v 1.2 1998/07/07 00:16:35 dbj Exp $ */
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/*
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* Copyright (c) 1994 Rolf Grossmann
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Rolf Grossmann.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/reboot.h>
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#include <lib/libsa/stand.h>
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#include <lib/libkern/libkern.h>
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#include <machine/cpu.h> /* for NEXT_RAMBASE */
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#define LOADADDR (char *)NEXT_RAMBASE
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extern int errno;
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/*
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* Boot device is derived from PROM provided information.
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*/
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char *version="$Revision: 1.2 $";
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extern int subversion;
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#define KNAMEN 100
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char kernel[KNAMEN];
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char *entry_point; /* return value filled in by machdep_start */
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extern void rtc_init(void);
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extern int try_bootp;
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char *
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main(char *boot_arg)
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{
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printf(">> NetBSD BOOT [%s #%d]\n", version, subversion);
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rtc_init();
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try_bootp = 1;
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#if 0
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printf("Press return to continue.\n");
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getchar();
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#endif
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strcpy(kernel, boot_arg);
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entry_point = NULL;
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while (1) {
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errno = 0;
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exec(kernel, LOADADDR, 0);
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if (errno == ENOEXEC && entry_point != NULL) {
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printf("Kernel loaded at 0x%lx\n",(unsigned long)entry_point);
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#if 0
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printf("Press return to continue.\n");
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getchar();
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#endif
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return entry_point;
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}
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printf("load of %s: %s\n", kernel, strerror(errno));
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printf("boot: ");
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gets(kernel);
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/* XXX we have to write this back into boot_arg or even mg->boot* */
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if (kernel[0] == '\0')
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return NULL;
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}
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}
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