1 /* $NetBSD: monitor.c,v 1.4 2016/06/11 06:31:49 dholland Exp $ */ 2 3 /*- 4 * Copyright (c) 1996, 1997 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Kazuki Sakamoto. 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #if defined(DBMONITOR) 33 34 #include <lib/libsa/stand.h> 35 #include <lib/libkern/libkern.h> 36 37 #include "boot.h" 38 39 #ifndef NULL 40 #define NULL (void *)0 41 #endif 42 43 static void db_cmd_dump(int, char **); 44 static void db_cmd_get(int, char **); 45 static void db_cmd_put(int, char **); 46 static void db_cmd_help(int, char **); 47 48 static int db_atob(char *); 49 50 static const struct db_cmd { 51 char *name; 52 void (*fcn)(int, char **); 53 } db_cmd[] = { 54 { "dump", db_cmd_dump }, 55 { "get", db_cmd_get }, 56 { "put", db_cmd_put }, 57 { "help", db_cmd_help }, 58 { NULL, NULL }, 59 }; 60 61 int 62 db_monitor(void) 63 { 64 char line[1024]; 65 char *p, *argv[16]; 66 int argc, flag; 67 int tmp; 68 69 for (;;) { 70 printf("db> "); 71 kgets(line, sizeof(line)); 72 73 flag = 0; 74 argc = 0; 75 for (p = line; *p != '\0'; p++) { 76 if (*p != ' ' && *p != '\t') { 77 if (!flag) { 78 flag++; 79 argv[argc++] = p; 80 } 81 } else { 82 if (flag) { 83 *p = '\0'; 84 flag = 0; 85 } 86 } 87 } 88 if (argc == 0) 89 continue; 90 91 tmp = 0; 92 while (db_cmd[tmp].name != NULL) { 93 if (strcmp("continue", argv[0]) == 0) 94 return 0; 95 if (strcmp(db_cmd[tmp].name, argv[0]) == 0) { 96 (db_cmd[tmp].fcn)(argc, argv); 97 break; 98 } 99 tmp++; 100 } 101 if (db_cmd[tmp].name == NULL) 102 db_cmd_help(argc, argv); 103 } 104 105 return 0; 106 } 107 108 static int 109 db_atob(char *p) 110 { 111 int b = 0, width, tmp, exp, x = 0; 112 113 if (p[1] == 'x') { 114 p += 2; 115 x = 1; 116 } 117 118 width = strlen(p); 119 while (width--) { 120 exp = 1; 121 for (tmp = 1; tmp <= width; tmp++) 122 exp *= (x ? 16 : 10); 123 if (*p >= '0' && *p <= '9') { 124 tmp = *p - '0'; 125 } else { 126 tmp = *p - 'a' + 10; 127 } 128 b += tmp * exp; 129 p++; 130 } 131 return b; 132 } 133 134 static void 135 db_cmd_dump(int argc, char **argv) 136 { 137 char *p, *r, *pp; 138 int mode, add, size, i; 139 140 switch (argc) { 141 case 4: 142 r = argv[1]; 143 switch (r[1]) { 144 case 'b': 145 mode = 1; 146 break; 147 case 'h': 148 mode = 2; 149 break; 150 case 'w': 151 mode = 4; 152 break; 153 default: 154 goto out; 155 } 156 p = argv[2]; 157 pp = argv[3]; 158 break; 159 case 3: 160 mode = 4; 161 p = argv[1]; 162 pp = argv[2]; 163 break; 164 default: 165 goto out; 166 } 167 168 add = db_atob(p); 169 size = db_atob(pp); 170 i = 0; 171 for (; size > 0;) { 172 if (i == 0) { 173 printf("\n0x%x:", add); 174 } 175 switch (mode) { 176 case 1: 177 printf(" "); 178 puthex(*(unsigned char *)add, 1); 179 add += 1; 180 size -= 1; 181 if (++i == 16) 182 i = 0; 183 break; 184 case 2: 185 printf(" "); 186 puthex(*(unsigned short *)add, 2); 187 add += 2; 188 size -= 2; 189 if (++i == 8) 190 i = 0; 191 break; 192 case 4: 193 printf(" "); 194 puthex(*(unsigned int *)add, 4); 195 add += 4; 196 size -= 4; 197 if (++i == 4) 198 i = 0; 199 break; 200 } 201 } 202 printf("\n"); 203 return; 204 205 out: 206 printf("dump [-b][-h][-w] address size\n"); 207 return; 208 } 209 210 static void 211 db_cmd_get(int argc, char **argv) 212 { 213 char *p, *r; 214 int mode, add; 215 int val; 216 217 switch (argc) { 218 case 3: 219 r = argv[1]; 220 switch (r[1]) { 221 case 'b': 222 mode = 1; 223 break; 224 case 'h': 225 mode = 2; 226 break; 227 case 'w': 228 mode = 4; 229 break; 230 default: 231 goto out; 232 } 233 p = argv[2]; 234 break; 235 case 2: 236 mode = 4; 237 p = argv[1]; 238 break; 239 default: 240 goto out; 241 } 242 243 add = db_atob(p); 244 printf("0x%x: 0x", add); 245 switch (mode) { 246 case 1: 247 val = *(char *)add; 248 break; 249 case 2: 250 val = *(short *)add; 251 break; 252 case 4: 253 val = *(int *)add; 254 break; 255 default: 256 val = 0; 257 break; 258 } 259 puthex(val, mode); 260 printf("\n"); 261 return; 262 263 out: 264 printf("get [-b][-h][-w] address\n"); 265 return; 266 } 267 268 static void 269 db_cmd_put(int argc, char **argv) 270 { 271 char *p, *r, *pp; 272 int mode, add, data; 273 274 switch (argc) { 275 case 4: 276 r = argv[1]; 277 switch (r[1]) { 278 case 'b': 279 mode = 1; 280 break; 281 case 'h': 282 mode = 2; 283 break; 284 case 'w': 285 mode = 4; 286 break; 287 default: 288 goto out; 289 } 290 p = argv[2]; 291 pp = argv[3]; 292 break; 293 case 3: 294 mode = 4; 295 p = argv[1]; 296 pp = argv[2]; 297 break; 298 default: 299 goto out; 300 } 301 302 add = db_atob(p); 303 data = db_atob(pp); 304 printf("0x%x: 0x", add); 305 puthex(data, mode); 306 switch (mode) { 307 case 1: 308 *(char *)add = data; 309 break; 310 case 2: 311 *(short *)add = data; 312 break; 313 case 4: 314 *(int *)add = data; 315 break; 316 } 317 printf("\n"); 318 return; 319 320 out: 321 printf("put [-b][-h][-w] address data\n"); 322 return; 323 } 324 325 static void 326 db_cmd_help(int argc, char **argv) 327 { 328 int i = 0; 329 330 while (db_cmd[i].name != NULL) 331 printf("%s, ", db_cmd[i++].name); 332 printf("continue\n"); 333 } 334 335 #endif /* DBMONITOR */ 336
Indexes created Sat Sep 20 22:09:52 GMT 2025