1 /* $NetBSD: loadbsd.c,v 1.20 2009/03/18 10:22:26 cegger 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: 1.20 $"; 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(int argc, char **argv) 72 { 73 /* 74 * Option parsing 75 */ 76 extern int optind; 77 extern char *optarg; 78 int ch, err; 79 char *errmsg; 80 int fd; 81 osdsc_t *od; 82 83 init_toslib(argv[0]); 84 Progname = argv[0]; 85 86 od = &kernelparms; 87 od->boothowto = RB_SINGLE; 88 89 while ((ch = getopt(argc, argv, "abdDhNstVwo:S:T:")) != -1) { 90 switch (ch) { 91 case 'a': 92 od->boothowto &= ~(RB_SINGLE); 93 od->boothowto |= RB_AUTOBOOT; 94 break; 95 case 'b': 96 od->boothowto |= RB_ASKNAME; 97 break; 98 case 'd': 99 od->boothowto |= RB_KDB; 100 break; 101 case 'D': 102 d_flag = 1; 103 break; 104 case 'h': 105 h_flag = 1; 106 break; 107 case 'N': 108 N_flag = 1; 109 break; 110 case 'o': 111 redirect_output(optarg); 112 break; 113 case 's': 114 s_flag = 1; 115 break; 116 case 'S': 117 od->stmem_size = atoi(optarg); 118 break; 119 case 't': 120 t_flag = 1; 121 break; 122 case 'T': 123 od->ttmem_size = atoi(optarg); 124 break; 125 case 'V': 126 v_flag = 1; 127 break; 128 case 'w': 129 set_wait_for_key(); 130 break; 131 default: 132 usage(); 133 } 134 } 135 argc -= optind; 136 argv += optind; 137 if (argc == 1) 138 strcpy(kname, argv[0]); 139 140 if (h_flag) 141 help(); 142 if (v_flag) 143 eprintf("%s\r\n", version); 144 145 /* 146 * Get system info to pass to NetBSD 147 */ 148 get_sys_info(od); 149 if (d_flag) { 150 eprintf("Machine info:\r\n"); 151 eprintf("ST-RAM size\t: %10d bytes\r\n",od->stmem_size); 152 eprintf("TT-RAM size\t: %10d bytes\r\n",od->ttmem_size); 153 eprintf("TT-RAM start\t: 0x%08x\r\n", od->ttmem_start); 154 eprintf("Cpu-type\t: 0x%08x\r\n", od->cputype); 155 } 156 157 /* 158 * Find the kernel to boot and read it's exec-header 159 */ 160 if ((fd = open(kname, O_RDONLY)) < 0) 161 fatal(-1, "Cannot open kernel '%s'", kname); 162 if ((err = elf_load(fd, od, &errmsg, !N_flag)) == -1) { 163 /* 164 * Not ELF, try a.out 165 */ 166 if (err = aout_load(fd, od, &errmsg, !N_flag)) { 167 if (err == -1) 168 errmsg = "Not an ELF or NMAGIC file '%s'"; 169 fatal(-1, errmsg, kname); 170 } 171 } 172 else { 173 if (err) 174 fatal(-1, errmsg); 175 } 176 177 close(fd); 178 179 if (d_flag) { 180 eprintf("\r\nKernel info:\r\n"); 181 eprintf("Kernel loadaddr\t: 0x%08x\r\n", od->kstart); 182 eprintf("Kernel size\t: %10d bytes\r\n", od->ksize); 183 eprintf("Kernel entry\t: 0x%08x\r\n", od->kentry); 184 eprintf("Kernel esym\t: 0x%08x\r\n", od->k_esym); 185 } 186 187 if (!t_flag) 188 start_kernel(od); 189 /* NOT REACHED */ 190 191 eprintf("Kernel '%s' was loaded OK\r\n", kname); 192 xexit(0); 193 return 0; 194 } 195 196 void 197 get_sys_info(osdsc_t *od) 198 { 199 long stck; 200 201 stck = Super(0); 202 203 sys_info(od); 204 205 if (!(od->cputype & ATARI_ANYCPU)) 206 fatal(-1, "Cannot determine CPU-type"); 207 208 (void)Super(stck); 209 if (s_flag) 210 od->ttmem_size = od->ttmem_start = 0; 211 } 212 213 void 214 help(void) 215 { 216 eprintf("\r 217 NetBSD loader for the Atari-TT\r 218 \r 219 Usage: %s [-abdhstVD] [-S <stram-size>] [-T <ttram-size>] [kernel]\r 220 \r 221 Description of options:\r 222 \r 223 \t-a Boot up to multi-user mode.\r 224 \t-b Ask for root device to use.\r 225 \t-d Enter kernel debugger.\r 226 \t-D printout debug information while loading\r 227 \t-h What you're getting right now.\r 228 `t-N No symbols must be loaded.\r 229 \t-o Write output to both <output file> and stdout.\r 230 \t-s Use only ST-compatible RAM\r 231 \t-S Set amount of ST-compatible RAM\r 232 \t-T Set amount of TT-compatible RAM\r 233 \t-t Test the loader. It will do everything except executing the\r 234 \t loaded kernel.\r 235 \t-V Print loader version.\r 236 \t-w Wait for a keypress before exiting.\r 237 ", Progname); 238 xexit(0); 239 } 240 241 void 242 usage(void) 243 { 244 eprintf("Usage: %s [-abdhstVD] [-S <stram-size>] " 245 "[-T <ttram-size>] [kernel]\r\n", Progname); 246 xexit(1); 247 } 248 249 void 250 start_kernel(osdsc_t *od) 251 { 252 long stck; 253 254 stck = Super(0); 255 bsd_startup(&(od->kp)); 256 /* NOT REACHED */ 257 258 (void)Super(stck); 259 } 260