/* $NetBSD: boot.c,v 1.20 2024/03/06 19:48:53 andvar Exp $ */ /*- * Copyright (c) 1999 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jonathan Stone, Michael Hitch and Simon Burge. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Ralph Campbell. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)boot.c 8.1 (Berkeley) 6/10/93 */ #include <lib/libsa/stand.h> #include <lib/libsa/loadfile.h> #include <lib/libkern/libkern.h> #include <sys/param.h> #include <sys/exec.h> #include <sys/exec_elf.h> #include <machine/dec_prom.h> #include "common.h" #include "bootinfo.h" /* * We won't go overboard with gzip'd kernel names. After all we can * still boot a gzip'd kernel called "netbsd.pmax" - it doesn't need * the .gz suffix. */ char *kernelnames[] = { "netbsd.pmax", "netbsd", "netbsd.gz", "netbsd.bak", "netbsd.old", "onetbsd", "gennetbsd", #ifdef notyet "netbsd.el", #endif /*notyet*/ NULL }; static char *devname(char *); int main(int, char **); /* * This gets arguments from the first stage boot loader, calls PROM routines * to open and load the program to boot, and then transfers execution to * that new program. * * Argv[0] should be something like "rz(0,0,0)netbsd" on a DECstation 3100. * Argv[0,1] should be something like "boot 5/rz0/netbsd" on a DECstation 5000. * The argument "-a" means netbsd should do an automatic reboot. */ int main(int argc, char **argv) { char *name, **namep, *dev, *kernel; char bootname[PATH_MAX], bootpath[PATH_MAX]; int entry, win; u_long marks[MARK_MAX]; struct btinfo_symtab bi_syms; struct btinfo_bootpath bi_bpath; /* print a banner */ printf("\n"); printf("NetBSD/pmax " NETBSD_VERS " " BOOT_TYPE_NAME " Bootstrap, Revision %s\n", bootprog_rev); printf("\n"); /* initialise bootinfo structure early */ bi_init(BOOTINFO_ADDR); /* check for DS5000 boot */ if (strcmp(argv[0], "boot") == 0) { argc--; argv++; } name = argv[0]; printf("Boot: %s\n", name); /* NOTE: devname() can modify bootname[]. */ strcpy(bootname, argv[0]); if ((kernel = devname(bootname)) == NULL) { dev = bootname; name = NULL; } memset(marks, 0, sizeof marks); if (name != NULL) win = (loadfile(name, marks, LOAD_KERNEL) == 0); else { win = 0; for (namep = kernelnames, win = 0; *namep != NULL && !win; namep++) { kernel = *namep; strcpy(bootpath, dev); strcat(bootpath, kernel); printf("Loading: %s\n", bootpath); win = (loadfile(bootpath, marks, LOAD_ALL) != -1); if (win) { name = bootpath; } } } if (!win) goto fail; strncpy(bi_bpath.bootpath, kernel, BTINFO_BOOTPATH_LEN); bi_add(&bi_bpath, BTINFO_BOOTPATH, sizeof(bi_bpath)); entry = marks[MARK_ENTRY]; bi_syms.nsym = marks[MARK_NSYM]; bi_syms.ssym = marks[MARK_SYM]; bi_syms.esym = marks[MARK_END]; bi_add(&bi_syms, BTINFO_SYMTAB, sizeof(bi_syms)); printf("Starting at 0x%x\n\n", entry); if (callv == &callvec) startprog(entry, entry, argc, argv, 0, 0, BOOTINFO_MAGIC, BOOTINFO_ADDR); else startprog(entry, entry, argc, argv, DEC_PROM_MAGIC, callv, BOOTINFO_MAGIC, BOOTINFO_ADDR); (void)printf("KERNEL RETURNED!\n"); fail: (void)printf("Boot failed! Halting...\n"); return (0); } /* * Check whether or not fname is a device name only or a full * bootpath including the kernel name. This code to do this * is copied from loadfile() in the first stage bootblocks. * Returns the kernel name, or NULL if no kernel name specified. * * NOTE: fname will be modified if it's of the form N/rzY * without a trailing slash. */ static char * devname(char *fname) { char c; while ((c = *fname++) != '\0') { if (c == ')') break; if (c != '/') continue; while ((c = *fname++) != '\0') if (c == '/') break; /* * Make "N/rzY" with no trailing '/' valid by adding * the extra '/' before appending 'boot.pmax' to the path. */ if (c != '/') { fname--; *fname++ = '/'; *fname = '\0'; } break; } return (*fname == '\0' ? NULL : fname); }
