1 /* $NetBSD: xxboot.c,v 1.1 2001/06/14 12:57:16 fredette Exp $ */ 2 3 /*- 4 * Copyright (c) 1982, 1986, 1990, 1993 5 * The Regents of the University of California. 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 University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)boot.c 8.1 (Berkeley) 6/10/93 36 */ 37 38 #include <sys/param.h> 39 #include <sys/reboot.h> 40 #include <machine/mon.h> 41 42 #include <stand.h> 43 #include <loadfile.h> 44 #include "libsa.h" 45 46 /* 47 * Note that extname is edited based on the running machine type 48 * (sun3 vs sun3x). EXTNAMEX is the position of the 'x'. 49 */ 50 char extname[] = "netbsd.sun3x"; 51 #define EXTNAMEX (sizeof(extname)-2) 52 53 /* 54 * If the PROM did not give us a specific kernel name to use, 55 * and did not specify the -a flag (ask), then try the names 56 * in the following list. 57 */ 58 char *kernelnames[] = { 59 "netbsd", 60 "netbsd.old", 61 extname, 62 NULL 63 }; 64 char line[80]; 65 66 void 67 xxboot_main(const char *boot_type) 68 { 69 struct open_file f; 70 char **npp; 71 char *file; 72 void *entry; 73 int fd; 74 u_long marks[MARK_MAX]; 75 76 memset(marks, 0, sizeof(marks)); 77 printf(">> %s %s [%s]\n", bootprog_name, boot_type, bootprog_rev); 78 prom_get_boot_info(); 79 80 /* 81 * Hold the raw device open so it will not be 82 * closed and reopened on every attempt to 83 * load files that did not exist. 84 */ 85 f.f_flags = F_RAW; 86 if (devopen(&f, 0, &file)) { 87 printf("%s: devopen failed\n", boot_type); 88 return; 89 } 90 91 /* 92 * Edit the "extended" kernel name based on 93 * the type of machine we are running on. 94 */ 95 if (_is2) 96 extname[EXTNAMEX - 1] = '2'; 97 if (_is3x == 0) 98 extname[EXTNAMEX] = 0; 99 100 /* If we got the "-a" flag, ask for the name. */ 101 if (prom_boothow & RB_ASKNAME) 102 goto just_ask; 103 104 /* 105 * If the PROM gave us a file name, 106 * it means the user asked for that 107 * kernel name explicitly. 108 */ 109 file = prom_bootfile; 110 if (file && *file) { 111 fd = loadfile(file, marks, LOAD_KERNEL); 112 if (fd == -1) { 113 goto err; 114 } else { 115 goto gotit; 116 } 117 } 118 119 /* 120 * Try the default kernel names. 121 */ 122 for (npp = kernelnames; *npp; npp++) { 123 file = *npp; 124 printf("%s: trying %s\n", boot_type, file); 125 fd = loadfile(file, marks, LOAD_KERNEL); 126 if (fd != -1) 127 goto gotit; 128 } 129 130 /* 131 * Ask what kernel name to load. 132 */ 133 for (;;) { 134 135 just_ask: 136 file = kernelnames[0]; 137 printf("filename? [%s]: ", file); 138 gets(line); 139 if (line[0]) 140 file = line; 141 142 fd = loadfile(file, marks, LOAD_KERNEL); 143 if (fd != -1) 144 break; 145 146 err: 147 printf("%s: %s: loadfile() failed.\n", boot_type, file); 148 } 149 150 gotit: 151 entry = (void *)marks[MARK_ENTRY]; 152 printf("Starting program at 0x%x\n", entry); 153 chain_to(entry); 154 } 155