boot.c revision 1.4
1 /* $NetBSD: boot.c,v 1.4 2003/08/07 16:29:27 agc Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jonathan Stone, Michael Hitch and Simon Burge. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 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 * Ralph Campbell. 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 #include <lib/libsa/stand.h> 74 #include <lib/libsa/loadfile.h> 75 #include <lib/libkern/libkern.h> 76 77 #include <sys/param.h> 78 #include <sys/exec.h> 79 #include <sys/exec_elf.h> 80 81 #include <dev/arcbios/arcbios.h> 82 83 #include "common.h" 84 #include "bootinfo.h" 85 86 /* 87 * We won't go overboard with gzip'd kernel names. After all we can 88 * still boot a gzip'd kernel called "netbsd.sgimips" - it doesn't need 89 * the .gz suffix. 90 */ 91 char *kernelnames[] = { 92 "netbsd.sgimips", 93 "netbsd", "netbsd.gz", 94 "netbsd.bak", 95 "netbsd.old", 96 "onetbsd", 97 "gennetbsd", 98 #ifdef notyet 99 "netbsd.el", 100 #endif /*notyet*/ 101 NULL 102 }; 103 104 extern const struct arcbios_fv *ARCBIOS; 105 106 int main __P((int, char *[])); 107 108 #ifdef HEAP_VARIABLE 109 void setheap(void *, void*); 110 #endif 111 112 /* Storage must be static. */ 113 struct btinfo_symtab bi_syms; 114 struct btinfo_bootpath bi_bpath; 115 116 /* 117 * This gets arguments from the first stage boot lader, calls PROM routines 118 * to open and load the program to boot, and then transfers execution to 119 * that new program. 120 * 121 * Argv[0] should be something like "rz(0,0,0)netbsd" on a DECstation 3100. 122 * Argv[0,1] should be something like "boot 5/rz0/netbsd" on a DECstation 5000. 123 * The argument "-a" means netbsd should do an automatic reboot. 124 */ 125 int 126 main(argc, argv) 127 int argc; 128 char **argv; 129 { 130 char *name/*, **namep, *dev, *kernel*/; 131 char /*bootname[PATH_MAX],*/ bootpath[PATH_MAX]; 132 void (*entry)(int, char *[], int, void *); 133 u_long marks[MARK_MAX]; 134 struct arcbios_mem *mem; 135 int win; 136 137 /* print a banner */ 138 printf("\n"); 139 printf("NetBSD/sgimips " NETBSD_VERS " Bootstrap, Revision %s\n", 140 bootprog_rev); 141 printf("(%s, %s)\n", bootprog_maker, bootprog_date); 142 printf("\n"); 143 144 /* Initialize heap from free memory descriptors */ 145 mem = 0; 146 do { 147 mem = ARCBIOS->GetMemoryDescriptor(mem); 148 if (mem != 0) 149 printf("Mem block: type %d base 0x%x size 0x%x\n", 150 mem->Type, mem->BasePage * 4096, mem->PageCount * 4096); 151 } while (mem != 0); 152 #ifdef HEAP_VARIABLE 153 setheap((void *)0x88200000, (void *)0x88300000); /* XXXX */ 154 #endif 155 printf("Local storage %x\n", (int)&mem); 156 for (win = 0; win < argc; ++win) 157 printf("argv[%d]: %s\n", win, argv[win]); 158 159 /* initialise bootinfo structure early */ 160 bi_init(); 161 162 /* 163 * How to find partition and file to load? 164 * OSLoaderPartition=scsi(n)disk(n)rdisk(n)partition(n) 165 * OSLoadFilename=netbsd 166 * path=??? 167 * argument passed to boot program 168 */ 169 bootpath[0] = 0; 170 name = ARCBIOS->GetEnvironmentVariable("OSLoadPartition"); 171 if (name) { 172 strcpy(bootpath, name); 173 name = ARCBIOS->GetEnvironmentVariable("OSLoadFilename"); 174 if (name) 175 strcat(bootpath, name); 176 else 177 strcat(bootpath, "netbsd"); 178 } 179 if (strchr(argv[1], '=') == NULL) { 180 strcpy(bootpath, argv[1]); 181 if (strchr(argv[1], '(') == NULL) { 182 strcpy(bootpath, 183 ARCBIOS->GetEnvironmentVariable("OSLoadPartition")); 184 strcat(bootpath, argv[1]); 185 } 186 } 187 printf("Boot: %s\n", bootpath); 188 189 memset(marks, 0, sizeof marks); 190 #if 0 191 if (name != NULL) 192 win = (loadfile(name, marks, LOAD_KERNEL) == 0); 193 else { 194 win = 0; 195 for (namep = kernelnames, win = 0; *namep != NULL && !win; 196 namep++) { 197 kernel = *namep; 198 strcpy(bootpath, dev); 199 strcat(bootpath, kernel); 200 printf("Loading: %s\n", bootpath); 201 win = (loadfile(bootpath, marks, LOAD_ALL) != -1); 202 if (win) { 203 name = bootpath; 204 } 205 } 206 } 207 #else 208 win = loadfile(bootpath, marks, LOAD_KERNEL) == 0; 209 #endif 210 if (!win) 211 goto fail; 212 213 #if 0 214 strncpy(bi_bpath.bootpath, kernel, BTINFO_BOOTPATH_LEN); 215 bi_add(&bi_bpath, BTINFO_BOOTPATH, sizeof(bi_bpath)); 216 #endif 217 218 entry = (void *) marks[MARK_ENTRY]; 219 bi_syms.nsym = marks[MARK_NSYM]; 220 bi_syms.ssym = marks[MARK_SYM]; 221 bi_syms.esym = marks[MARK_END]; 222 bi_add(&bi_syms, BTINFO_SYMTAB); 223 224 printf("Starting at %p\n\n", entry); 225 printf("nsym 0x%lx ssym 0x%lx esym 0x%lx\n", marks[MARK_NSYM], 226 marks[MARK_SYM], marks[MARK_END]); 227 ARCBIOS->FlushAllCaches(); 228 (*entry)(argc, argv, BOOTINFO_MAGIC, bootinfo); 229 230 printf("Kernel returned! Halting...\n"); 231 return (0); 232 233 fail: 234 (void)printf("Boot failed! Halting...\n"); 235 return (0); 236 } 237
Indexes created Sat Sep 20 22:09:52 GMT 2025