1 /* $NetBSD: boot.c,v 1.1 2014/02/24 07:23:43 skrll 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. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)boot.c 8.1 (Berkeley) 6/10/93 32 */ 33 34 /* 35 * Copyright (c) 1998-2004 Michael Shalayeff 36 * All rights reserved. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 1. Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * 2. Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in the 45 * documentation and/or other materials provided with the distribution. 46 * 47 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 48 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 49 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 50 * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT, 51 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 52 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 53 * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 54 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 55 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 56 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 57 * THE POSSIBILITY OF SUCH DAMAGE. 58 * 59 */ 60 61 #include <sys/param.h> 62 #include <sys/reboot.h> 63 #include <sys/boot_flag.h> 64 65 #include <arch/hppa/stand/common/libsa.h> 66 #include <lib/libsa/loadfile.h> 67 68 #include <machine/pdc.h> 69 #include <machine/vmparam.h> 70 71 #include <arch/hppa/stand/common/dev_hppa.h> 72 73 #include "bootinfo.h" 74 75 /* 76 * Boot program... bits in `howto' determine whether boot stops to 77 * ask for system name. Boot device is derived from ROM provided 78 * information. 79 */ 80 81 #define MAXLEN 100 82 83 char line[MAXLEN]; 84 char devname_buffer[16]; 85 86 extern u_int opendev; 87 extern char *lowram; 88 extern int noconsole; 89 90 /* 91 * XXX UFS accepts a /, NFS doesn't. 92 */ 93 char *name; 94 char *names[] = { 95 "netbsd", "netbsd.gz", 96 "netbsd.bak", "netbsd.bak.gz", 97 "netbsd.old", "netbsd.old.gz", 98 "onetbsd", "onetbsd.gz", 99 NULL 100 }; 101 #define NUMNAMES (sizeof(names) / sizeof(char *)) 102 103 void boot(dev_t boot_dev); 104 int main(void); 105 void getbootdev(int *); 106 void exec_hppa(char *, u_long, int); 107 108 int tgets(char *); 109 void _rtt(void); 110 111 typedef void (*startfuncp)(int, int, int, int, int, void *) 112 __attribute__ ((noreturn)); 113 114 int howto; 115 116 void 117 boot(dev_t boot_dev) 118 { 119 machdep(); 120 #ifdef DEBUGBUG 121 debug = 1; 122 #endif 123 devboot(boot_dev, devname_buffer); 124 main(); 125 } 126 127 int 128 main(void) 129 { 130 int currname = 0; 131 char *filename, filename_buffer[MAXLEN]; 132 133 printf("\n"); 134 printf(">> %s, Revision %s\n", bootprog_name, bootprog_rev); 135 printf(">> Enter \"reset\" to reset system.\n"); 136 137 for (;;) { 138 size_t size; 139 140 /* reset bootinfo structure */ 141 bi_init(); 142 143 name = names[currname++]; 144 if (currname == NUMNAMES) 145 currname = 0; 146 147 if (!noconsole) { 148 howto = 0; 149 getbootdev(&howto); 150 } else 151 printf(": %s\n", name); 152 if (strchr(name, ':') != 0) { 153 filename = name; 154 } else { 155 strcpy(filename_buffer, devname_buffer); 156 strcat(filename_buffer, ":"); 157 strcat(filename_buffer, name); 158 filename = filename_buffer; 159 } 160 161 size = sizeof(struct btinfo_common) + strlen(name) + 1; 162 /* Impose limit (somewhat arbitrary) */ 163 if (size < BOOTINFO_MAXSIZE / 2) { 164 union { 165 struct btinfo_kernelfile bi_file; 166 char x[size]; 167 } U; 168 strcpy(U.bi_file.name, name); 169 BI_ADD(&U.bi_file, BTINFO_KERNELFILE, size); 170 } 171 172 exec_hppa(filename, 0, howto); 173 printf("boot: %s\n", strerror(errno)); 174 } 175 } 176 177 void 178 getbootdev(int *boot_howto) 179 { 180 char c, *ptr = line; 181 int bdev, badapt, bctlr, bunit, bpart; 182 183 bdev = B_TYPE(bootdev); 184 badapt = B_ADAPTOR(bootdev); 185 bctlr = B_CONTROLLER(bootdev); 186 bunit = B_UNIT(bootdev); 187 bpart = B_PARTITION(bootdev); 188 189 printf("Boot: [[[%s%d%c:]%s][-a][-c][-d][-s][-v][-q]] :- ", 190 devsw[bdev].dv_name, badapt << 8 | bctlr << 4 | bunit, 191 'a' + bpart, name); 192 193 if (tgets(line)) { 194 if (strcmp(line, "reset") == 0) { 195 _rtt(); 196 printf("panic: can't reboot\n"); 197 return; 198 } 199 while ((c = *ptr) != '\0') { 200 while (c == ' ') 201 c = *++ptr; 202 if (!c) 203 return; 204 if (c == '-') 205 while ((c = *++ptr) && c != ' ') 206 BOOT_FLAG(c, *boot_howto); 207 else { 208 name = ptr; 209 while ((c = *++ptr) && c != ' '); 210 if (c) 211 *ptr++ = 0; 212 } 213 } 214 } else 215 printf("\n"); 216 } 217 218 #define round_to_size(x) \ 219 (((x) + sizeof(u_long) - 1) & ~(sizeof(u_long) - 1)) 220 221 void 222 exec_hppa(char *file, u_long loadaddr, int boot_howto) 223 { 224 #ifdef EXEC_DEBUG 225 extern int debug; 226 int i; 227 #endif 228 struct btinfo_symtab bi_syms; 229 u_long marks[MARK_MAX]; 230 int fd; 231 232 marks[MARK_START] = loadaddr; 233 #ifdef EXEC_DEBUG 234 printf("file=%s loadaddr=%lx howto=%x\n", 235 file, loadaddr, boot_howto); 236 #endif 237 if ((fd = loadfile(file, marks, LOAD_KERNEL)) == -1) 238 return; 239 240 marks[MARK_END] = round_to_size(marks[MARK_END] - loadaddr); 241 printf("Start @ 0x%lx [%ld=0x%lx-0x%lx]...\n", 242 marks[MARK_ENTRY], marks[MARK_NSYM], 243 marks[MARK_SYM], marks[MARK_END]); 244 245 #ifdef EXEC_DEBUG 246 if (debug) { 247 printf("ep=0x%lx [", marks[MARK_ENTRY]); 248 for (i = 0; i < 10240; i++) { 249 if (!(i % 8)) { 250 printf("\b\n%p:", &((u_int *)marks[MARK_ENTRY])[i]); 251 if (getchar() != ' ') 252 break; 253 } 254 printf("%x,", ((int *)marks[MARK_ENTRY])[i]); 255 } 256 printf("\b\b ]\n"); 257 } 258 #endif 259 260 bi_syms.nsym = marks[MARK_NSYM]; 261 bi_syms.ssym = marks[MARK_SYM]; 262 bi_syms.esym = marks[MARK_END]; 263 BI_ADD(&bi_syms, BTINFO_SYMTAB, sizeof(bi_syms)); 264 265 fcacheall(); 266 267 __asm("mtctl %r0, %cr17"); 268 __asm("mtctl %r0, %cr17"); 269 270 /* stack and the gung is ok at this point, so, no need for asm setup */ 271 (*(startfuncp)(marks[MARK_ENTRY])) ((int)pdc, boot_howto, bootdev, 272 marks[MARK_END], BOOTARG_APIVER, &bootinfo); 273 /* not reached */ 274 } 275
Indexes created Sun Sep 21 20:09:37 GMT 2025