1 /* $NetBSD: loadbsd.c,v 1.22 2014/10/18 08:33:25 snj 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 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 /* 29 * NetBSD loader for the Atari-TT. 30 */ 31 32 #include <fcntl.h> 33 #include <stdio.h> 34 #include <osbind.h> 35 #include <stdarg.h> 36 #include <stdlib.h> 37 #include <string.h> 38 #include <unistd.h> 39 #include "libtos.h" 40 #include "tosdefs.h" 41 #include "cread.h" 42 43 char *Progname; /* How are we called */ 44 int d_flag = 0; /* Output debugging output? */ 45 int h_flag = 0; /* show help */ 46 int N_flag = 0; /* No symbols? */ 47 int s_flag = 0; /* St-ram only */ 48 int t_flag = 0; /* Just test, do not execute */ 49 int v_flag = 0; /* show version */ 50 51 const char version[] = "$Revision: 1.22 $"; 52 53 /* 54 * Default name of kernel to boot, large enough to patch 55 */ 56 char kname[80] = "n:/netbsd"; 57 58 static osdsc_t kernelparms; 59 60 void help PROTO((void)); 61 void usage PROTO((void)); 62 void get_sys_info PROTO((osdsc_t *)); 63 void start_kernel PROTO((osdsc_t *)); 64 65 int 66 main(int argc, char **argv) 67 { 68 /* 69 * Option parsing 70 */ 71 extern int optind; 72 extern char *optarg; 73 int ch, err; 74 char *errmsg; 75 int fd; 76 osdsc_t *od; 77 78 init_toslib(argv[0]); 79 Progname = argv[0]; 80 81 od = &kernelparms; 82 od->boothowto = RB_SINGLE; 83 84 while ((ch = getopt(argc, argv, "abdDhNstVwo:S:T:")) != -1) { 85 switch (ch) { 86 case 'a': 87 od->boothowto &= ~(RB_SINGLE); 88 od->boothowto |= RB_AUTOBOOT; 89 break; 90 case 'b': 91 od->boothowto |= RB_ASKNAME; 92 break; 93 case 'd': 94 od->boothowto |= RB_KDB; 95 break; 96 case 'D': 97 d_flag = 1; 98 break; 99 case 'h': 100 h_flag = 1; 101 break; 102 case 'N': 103 N_flag = 1; 104 break; 105 case 'o': 106 redirect_output(optarg); 107 break; 108 case 's': 109 s_flag = 1; 110 break; 111 case 'S': 112 od->stmem_size = atoi(optarg); 113 break; 114 case 't': 115 t_flag = 1; 116 break; 117 case 'T': 118 od->ttmem_size = atoi(optarg); 119 break; 120 case 'V': 121 v_flag = 1; 122 break; 123 case 'w': 124 set_wait_for_key(); 125 break; 126 default: 127 usage(); 128 } 129 } 130 argc -= optind; 131 argv += optind; 132 if (argc == 1) 133 strcpy(kname, argv[0]); 134 135 if (h_flag) 136 help(); 137 if (v_flag) 138 eprintf("%s\r\n", version); 139 140 /* 141 * Get system info to pass to NetBSD 142 */ 143 get_sys_info(od); 144 if (d_flag) { 145 eprintf("Machine info:\r\n"); 146 eprintf("ST-RAM size\t: %10d bytes\r\n",od->stmem_size); 147 eprintf("TT-RAM size\t: %10d bytes\r\n",od->ttmem_size); 148 eprintf("TT-RAM start\t: 0x%08x\r\n", od->ttmem_start); 149 eprintf("Cpu-type\t: 0x%08x\r\n", od->cputype); 150 } 151 152 /* 153 * Find the kernel to boot and read its exec-header 154 */ 155 if ((fd = open(kname, O_RDONLY)) < 0) 156 fatal(-1, "Cannot open kernel '%s'", kname); 157 if ((err = elf_load(fd, od, &errmsg, !N_flag)) == -1) { 158 /* 159 * Not ELF, try a.out 160 */ 161 if (err = aout_load(fd, od, &errmsg, !N_flag)) { 162 if (err == -1) 163 errmsg = "Not an ELF or NMAGIC file '%s'"; 164 fatal(-1, errmsg, kname); 165 } 166 } 167 else { 168 if (err) 169 fatal(-1, errmsg); 170 } 171 172 close(fd); 173 174 if (d_flag) { 175 eprintf("\r\nKernel info:\r\n"); 176 eprintf("Kernel loadaddr\t: 0x%08x\r\n", od->kstart); 177 eprintf("Kernel size\t: %10d bytes\r\n", od->ksize); 178 eprintf("Kernel entry\t: 0x%08x\r\n", od->kentry); 179 eprintf("Kernel esym\t: 0x%08x\r\n", od->k_esym); 180 } 181 182 if (!t_flag) 183 start_kernel(od); 184 /* NOT REACHED */ 185 186 eprintf("Kernel '%s' was loaded OK\r\n", kname); 187 xexit(0); 188 return 0; 189 } 190 191 void 192 get_sys_info(osdsc_t *od) 193 { 194 long stck; 195 196 stck = Super(0); 197 198 sys_info(od); 199 200 if (!(od->cputype & ATARI_ANYCPU)) 201 fatal(-1, "Cannot determine CPU-type"); 202 203 (void)Super(stck); 204 if (s_flag) 205 od->ttmem_size = od->ttmem_start = 0; 206 } 207 208 void 209 help(void) 210 { 211 eprintf("\r 212 NetBSD loader for the Atari-TT\r 213 \r 214 Usage: %s [-abdhstVD] [-S <stram-size>] [-T <ttram-size>] [kernel]\r 215 \r 216 Description of options:\r 217 \r 218 \t-a Boot up to multi-user mode.\r 219 \t-b Ask for root device to use.\r 220 \t-d Enter kernel debugger.\r 221 \t-D printout debug information while loading\r 222 \t-h What you're getting right now.\r 223 `t-N No symbols must be loaded.\r 224 \t-o Write output to both <output file> and stdout.\r 225 \t-s Use only ST-compatible RAM\r 226 \t-S Set amount of ST-compatible RAM\r 227 \t-T Set amount of TT-compatible RAM\r 228 \t-t Test the loader. It will do everything except executing the\r 229 \t loaded kernel.\r 230 \t-V Print loader version.\r 231 \t-w Wait for a keypress before exiting.\r 232 ", Progname); 233 xexit(0); 234 } 235 236 void 237 usage(void) 238 { 239 eprintf("Usage: %s [-abdhstVD] [-S <stram-size>] " 240 "[-T <ttram-size>] [kernel]\r\n", Progname); 241 xexit(1); 242 } 243 244 void 245 start_kernel(osdsc_t *od) 246 { 247 long stck; 248 249 stck = Super(0); 250 bsd_startup(&(od->kp)); 251 /* NOT REACHED */ 252 253 (void)Super(stck); 254 } 255
Indexes created Sat Sep 20 22:09:52 GMT 2025