214 lines
6.7 KiB
C
214 lines
6.7 KiB
C
/* $NetBSD: boot.c,v 1.2 2000/09/26 09:48:35 wdk Exp $ */
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/*-
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* Copyright (c) 1999 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jonathan Stone, Michael Hitch, Simon Burge and Wayne Knowles.
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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 the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Ralph Campbell.
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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 the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)boot.c 8.1 (Berkeley) 6/10/93
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*/
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#include <lib/libsa/stand.h>
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#include <lib/libsa/loadfile.h>
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#include <lib/libkern/libkern.h>
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#include <sys/param.h>
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#include <sys/exec.h>
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#include <sys/exec_elf.h>
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#include <machine/prom.h>
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#include "common.h"
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#include "bootinfo.h"
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/*
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* We won't go overboard with gzip'd kernel names. After all we can
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* still boot a gzip'd kernel called "netbsd.mipsco" - it doesn't need
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* the .gz suffix.
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*/
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char *kernelnames[] = {
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"netbsd",
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"netbsd.gz",
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"netbsd.bak",
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"netbsd.old",
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"netbsd.mipsco",
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"netbsd.elf",
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NULL
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};
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static char *devsplit __P((char *, char *));
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int main __P((int, char **));
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/*
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* This gets arguments from the first stage boot lader, calls PROM routines
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* to open and load the program to boot, and then transfers execution to
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* that new program.
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*/
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int
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main(argc, argv)
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int argc;
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char **argv;
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{
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char *name, **namep, *dev, *kernel;
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char bootname[PATH_MAX], bootpath[PATH_MAX];
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int win;
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u_long marks[MARK_MAX];
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struct btinfo_symtab bi_syms;
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struct btinfo_bootpath bi_bpath;
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extern void prom_init __P((void));
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void (*entry) __P((int, char **, char **, u_int, char *));
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prom_init();
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/* print a banner */
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printf("\n");
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printf("NetBSD/mipsco " NETBSD_VERS " " BOOT_TYPE_NAME
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" Bootstrap, Revision %s\n", bootprog_rev);
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printf("(%s, %s)\n\n", bootprog_maker, bootprog_date);
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/* initialise bootinfo structure early */
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bi_init(BOOTINFO_ADDR);
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dev = name = NULL;
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if (argc > 1) {
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kernel = devsplit(argv[1], bootname);
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if (*bootname) {
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dev = bootname;
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if (*kernel)
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name = argv[1];
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++argv;
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--argc;
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}
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}
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if (dev == NULL) {
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(void) devsplit(argv[0], bootname);
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dev = bootname;
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}
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memset(marks, 0, sizeof marks);
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if (name != NULL)
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win = (loadfile(name, marks, LOAD_KERNEL) == 0);
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else {
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win = 0;
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for (namep = kernelnames, win = 0; *namep != NULL && !win;
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namep++) {
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kernel = *namep;
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strcpy(bootpath, dev);
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strcat(bootpath, kernel);
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printf("Loading: %s\n", bootpath);
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win = (loadfile(bootpath, marks, LOAD_ALL) != -1);
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if (win) {
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name = bootpath;
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}
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}
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}
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if (!win)
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goto fail;
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strncpy(bi_bpath.bootpath, kernel, BTINFO_BOOTPATH_LEN);
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bi_add(&bi_bpath, BTINFO_BOOTPATH, sizeof(bi_bpath));
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entry = (void *) marks[MARK_ENTRY];
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bi_syms.nsym = marks[MARK_NSYM];
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bi_syms.ssym = marks[MARK_SYM];
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bi_syms.esym = marks[MARK_END];
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bi_add(&bi_syms, BTINFO_SYMTAB, sizeof(bi_syms));
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printf("Starting at 0x%x\n\n", (u_int)entry);
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(*entry)(argc, argv, NULL, BOOTINFO_MAGIC, (char *)BOOTINFO_ADDR);
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(void)printf("KERNEL RETURNED!\n");
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fail:
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(void)printf("Boot failed! Halting...\n");
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return (0);
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}
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/*
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* strip out device name and kernel name
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*/
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static char *
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devsplit(fname, devname)
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char *fname, *devname;
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{
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char *src, *dst;
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dst = devname;
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for (src = fname; *src;/**/)
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if ((*dst++ = *src++) == ')') {
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*dst = (char) 0;
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return src;
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}
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*devname = (char) 0;
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return fname;
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}
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