boot.c revision 1.1
1 /* $NetBSD: boot.c,v 1.1 2013/01/05 17:44:24 tsutsui Exp $ */ 2 3 /* 4 * Copyright (c) 1992 OMRON Corporation. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * OMRON Corporation. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the University of 20 * California, Berkeley and its contributors. 21 * 4. Neither the name of the University nor the names of its contributors 22 * may be used to endorse or promote products derived from this software 23 * without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 * 37 * @(#)boot.c 8.1 (Berkeley) 6/10/93 38 */ 39 /* 40 * Copyright (c) 1992, 1993 41 * The Regents of the University of California. All rights reserved. 42 * 43 * This code is derived from software contributed to Berkeley by 44 * OMRON Corporation. 45 * 46 * Redistribution and use in source and binary forms, with or without 47 * modification, are permitted provided that the following conditions 48 * are met: 49 * 1. Redistributions of source code must retain the above copyright 50 * notice, this list of conditions and the following disclaimer. 51 * 2. Redistributions in binary form must reproduce the above copyright 52 * notice, this list of conditions and the following disclaimer in the 53 * documentation and/or other materials provided with the distribution. 54 * 3. Neither the name of the University nor the names of its contributors 55 * may be used to endorse or promote products derived from this software 56 * without specific prior written permission. 57 * 58 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 59 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 60 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 61 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 62 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 63 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 64 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 65 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 66 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 67 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 68 * SUCH DAMAGE. 69 * 70 * @(#)boot.c 8.1 (Berkeley) 6/10/93 71 */ 72 73 /* 74 * boot.c -- boot program 75 * by A.Fujita, MAR-01-1992 76 */ 77 78 #include <sys/param.h> 79 #include <sys/reboot.h> 80 #include <sys/exec.h> 81 #include <luna68k/stand/boot/samachdep.h> 82 #include <luna68k/stand/boot/stinger.h> 83 #include <luna68k/stand/boot/status.h> 84 #include <lib/libsa/loadfile.h> 85 86 int howto; 87 88 static int get_boot_device(const char *, int *, int *, int *); 89 90 struct exec header; 91 char default_file[] = "sd(0,0)netbsd"; 92 93 char *how_to_info[] = { 94 "RB_ASKNAME ask for file name to reboot from", 95 "RB_SINGLE reboot to single user only", 96 "RB_NOSYNC dont sync before reboot", 97 "RB_HALT don't reboot, just halt", 98 "RB_INITNAME name given for /etc/init (unused)", 99 "RB_DFLTROOT use compiled-in rootdev", 100 "RB_KDB give control to kernel debugger", 101 "RB_RDONLY mount root fs read-only" 102 }; 103 104 int 105 how_to_boot(int argc, char *argv[]) 106 { 107 int i, h = howto; 108 109 if (argc < 2) { 110 printf("howto: 0x%s\n\n", hexstr(howto, 2)); 111 112 if (h == 0) { 113 printf("\t%s\n", "RB_AUTOBOOT flags for system auto-booting itself"); 114 } else { 115 for (i = 0; i < 8; i++, h >>= 1) { 116 if (h & 0x01) { 117 printf("\t%s\n", how_to_info[i]); 118 } 119 } 120 } 121 122 printf("\n"); 123 } 124 return ST_NORMAL; 125 } 126 127 int 128 get_boot_device(const char *s, int *devp, int *unitp, int *partp) 129 { 130 const char *p = s; 131 int unit, part; 132 133 while (*p != '(') { 134 if (*p == '\0') 135 goto error; 136 p++; 137 } 138 139 while (*++p != ',') { 140 if (*p == '\0') 141 goto error; 142 if (*p >= '0' && *p <= '9') 143 unit = (unit * 10) + (*p - '0'); 144 } 145 146 while (*++p != ')') { 147 if (*p == '\0') 148 goto error; 149 if (*p >= '0' && *p <= '9') 150 part = (part * 10) + (*p - '0'); 151 } 152 153 *devp = 0; /* XXX not yet */ 154 *unitp = unit; /* XXX should pass SCSI ID, not logical unit number */ 155 *partp = part; 156 157 return 0; 158 159 error: 160 return -1; 161 } 162 163 int 164 boot(int argc, char *argv[]) 165 { 166 char *line; 167 168 if (argc < 2) 169 line = default_file; 170 else 171 line = argv[1]; 172 173 printf("Booting %s\n", line); 174 175 return bootnetbsd(line); 176 } 177 178 int 179 bootnetbsd(char *line) 180 { 181 int io; 182 int dev, unit, part; 183 u_long marks[MARK_MAX]; 184 void (*entry)(void); 185 186 if (get_boot_device(line, &dev, &unit, &part) != 0) { 187 printf("Bad file name %s\n", line); 188 return ST_ERROR; 189 } 190 191 /* Note marks[MARK_START] is passed as an load address offset */ 192 memset(marks, 0, sizeof(marks)); 193 194 io = loadfile(line, marks, LOAD_KERNEL); 195 if (io >= 0) { 196 #ifdef DEBUG 197 printf("entry = 0x%lx\n", marks[MARK_ENTRY]); 198 printf("ssym = 0x%lx\n", marks[MARK_SYM]); 199 printf("esym = 0x%lx\n", marks[MARK_END]); 200 #endif 201 202 /* 203 * XXX TODO: fill bootinfo about symbols, boot device etc. 204 */ 205 206 entry = (void *)marks[MARK_ENTRY]; 207 208 (*entry)(); 209 } 210 211 return ST_ERROR; 212 } 213
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