1 /* $NetBSD: loadbsd.c,v 1.18 2001/10/11 07:07:43 leo Exp $ */ 2 3 /* 4 * Copyright (c) 1995 L. Weppelman 5 * 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 Leo Weppelman. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * NetBSD loader for the Atari-TT. 35 */ 36 37 #include <fcntl.h> 38 #include <stdio.h> 39 #include <osbind.h> 40 #include <stdarg.h> 41 #include <stdlib.h> 42 #include <string.h> 43 #include <unistd.h> 44 #include "libtos.h" 45 #include "tosdefs.h" 46 #include "cread.h" 47 48 char *Progname; /* How are we called */ 49 int d_flag = 0; /* Output debugging output? */ 50 int h_flag = 0; /* show help */ 51 int N_flag = 0; /* No symbols? */ 52 int s_flag = 0; /* St-ram only */ 53 int t_flag = 0; /* Just test, do not execute */ 54 int v_flag = 0; /* show version */ 55 56 const char version[] = "$Revision: 1.18 $"; 57 58 /* 59 * Default name of kernel to boot, large enough to patch 60 */ 61 char kname[80] = "n:/netbsd"; 62 63 static osdsc_t kernelparms; 64 65 void help PROTO((void)); 66 void usage PROTO((void)); 67 void get_sys_info PROTO((osdsc_t *)); 68 void start_kernel PROTO((osdsc_t *)); 69 70 int 71 main(argc, argv) 72 int argc; 73 char **argv; 74 { 75 /* 76 * Option parsing 77 */ 78 extern int optind; 79 extern char *optarg; 80 int ch, err; 81 char *errmsg; 82 int fd; 83 osdsc_t *od; 84 85 init_toslib(argv[0]); 86 Progname = argv[0]; 87 88 od = &kernelparms; 89 od->boothowto = RB_SINGLE; 90 91 while ((ch = getopt(argc, argv, "abdDhNstVwo:S:T:")) != -1) { 92 switch (ch) { 93 case 'a': 94 od->boothowto &= ~(RB_SINGLE); 95 od->boothowto |= RB_AUTOBOOT; 96 break; 97 case 'b': 98 od->boothowto |= RB_ASKNAME; 99 break; 100 case 'd': 101 od->boothowto |= RB_KDB; 102 break; 103 case 'D': 104 d_flag = 1; 105 break; 106 case 'h': 107 h_flag = 1; 108 break; 109 case 'N': 110 N_flag = 1; 111 break; 112 case 'o': 113 redirect_output(optarg); 114 break; 115 case 's': 116 s_flag = 1; 117 break; 118 case 'S': 119 od->stmem_size = atoi(optarg); 120 break; 121 case 't': 122 t_flag = 1; 123 break; 124 case 'T': 125 od->ttmem_size = atoi(optarg); 126 break; 127 case 'V': 128 v_flag = 1; 129 break; 130 case 'w': 131 set_wait_for_key(); 132 break; 133 default: 134 usage(); 135 } 136 } 137 argc -= optind; 138 argv += optind; 139 if (argc == 1) 140 strcpy(kname, argv[0]); 141 142 if (h_flag) 143 help(); 144 if (v_flag) 145 eprintf("%s\r\n", version); 146 147 /* 148 * Get system info to pass to NetBSD 149 */ 150 get_sys_info(od); 151 if (d_flag) { 152 eprintf("Machine info:\r\n"); 153 eprintf("ST-RAM size\t: %10d bytes\r\n",od->stmem_size); 154 eprintf("TT-RAM size\t: %10d bytes\r\n",od->ttmem_size); 155 eprintf("TT-RAM start\t: 0x%08x\r\n", od->ttmem_start); 156 eprintf("Cpu-type\t: 0x%08x\r\n", od->cputype); 157 } 158 159 /* 160 * Find the kernel to boot and read it's exec-header 161 */ 162 if ((fd = open(kname, O_RDONLY)) < 0) 163 fatal(-1, "Cannot open kernel '%s'", kname); 164 if ((err = elf_load(fd, od, &errmsg, !N_flag)) == -1) { 165 /* 166 * Not ELF, try a.out 167 */ 168 if (err = aout_load(fd, od, &errmsg, !N_flag)) { 169 if (err == -1) 170 errmsg = "Not an ELF or NMAGIC file '%s'"; 171 fatal(-1, errmsg, kname); 172 } 173 } 174 else { 175 if (err) 176 fatal(-1, errmsg); 177 } 178 179 close(fd); 180 181 if (d_flag) { 182 eprintf("\r\nKernel info:\r\n"); 183 eprintf("Kernel loadaddr\t: 0x%08x\r\n", od->kstart); 184 eprintf("Kernel size\t: %10d bytes\r\n", od->ksize); 185 eprintf("Kernel entry\t: 0x%08x\r\n", od->kentry); 186 eprintf("Kernel esym\t: 0x%08x\r\n", od->k_esym); 187 } 188 189 if (!t_flag) 190 start_kernel(od); 191 /* NOT REACHED */ 192 193 eprintf("Kernel '%s' was loaded OK\r\n", kname); 194 xexit(0); 195 return 0; 196 } 197 198 void 199 get_sys_info(od) 200 osdsc_t *od; 201 { 202 long stck; 203 204 stck = Super(0); 205 206 sys_info(od); 207 208 if (!(od->cputype & ATARI_ANYCPU)) 209 fatal(-1, "Cannot determine CPU-type"); 210 211 (void)Super(stck); 212 if (s_flag) 213 od->ttmem_size = od->ttmem_start = 0; 214 } 215 216 void 217 help() 218 { 219 eprintf("\r 220 NetBSD loader for the Atari-TT\r 221 \r 222 Usage: %s [-abdhstVD] [-S <stram-size>] [-T <ttram-size>] [kernel]\r 223 \r 224 Description of options:\r 225 \r 226 \t-a Boot up to multi-user mode.\r 227 \t-b Ask for root device to use.\r 228 \t-d Enter kernel debugger.\r 229 \t-D printout debug information while loading\r 230 \t-h What you're getting right now.\r 231 `t-N No symbols must be loaded.\r 232 \t-o Write output to both <output file> and stdout.\r 233 \t-s Use only ST-compatible RAM\r 234 \t-S Set amount of ST-compatible RAM\r 235 \t-T Set amount of TT-compatible RAM\r 236 \t-t Test the loader. It will do everything except executing the\r 237 \t loaded kernel.\r 238 \t-V Print loader version.\r 239 \t-w Wait for a keypress before exiting.\r 240 ", Progname); 241 xexit(0); 242 } 243 244 void 245 usage() 246 { 247 eprintf("Usage: %s [-abdhstVD] [-S <stram-size>] " 248 "[-T <ttram-size>] [kernel]\r\n", Progname); 249 xexit(1); 250 } 251 252 void 253 start_kernel(od) 254 osdsc_t *od; 255 { 256 long stck; 257 258 stck = Super(0); 259 bsd_startup(&(od->kp)); 260 /* NOT REACHED */ 261 262 (void)Super(stck); 263 } 264