mkioconf.c revision 1.21
1 /* $NetBSD: mkioconf.c,v 1.21 2012/03/11 21:16:08 dholland Exp $ */ 2 3 /* 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This software was developed by the Computer Systems Engineering group 8 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 9 * contributed to Berkeley. 10 * 11 * All advertising materials mentioning features or use of this software 12 * must display the following acknowledgement: 13 * This product includes software developed by the University of 14 * California, Lawrence Berkeley Laboratories. 15 * 16 * Redistribution and use in source and binary forms, with or without 17 * modification, are permitted provided that the following conditions 18 * are met: 19 * 1. Redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer. 21 * 2. Redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution. 24 * 3. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * from: @(#)mkioconf.c 8.1 (Berkeley) 6/6/93 41 */ 42 43 #if HAVE_NBTOOL_CONFIG_H 44 #include "nbtool_config.h" 45 #endif 46 47 #include <sys/param.h> 48 #include <err.h> 49 #include <errno.h> 50 #include <stdio.h> 51 #include <stdlib.h> 52 #include <string.h> 53 #include "defs.h" 54 55 /* 56 * Make ioconf.c. 57 */ 58 static int cf_locators_print(const char *, void *, void *); 59 static int cforder(const void *, const void *); 60 static void emitcfdata(FILE *); 61 static void emitcfdrivers(FILE *); 62 static void emitexterns(FILE *); 63 static void emitcfattachinit(FILE *); 64 static void emithdr(FILE *); 65 static void emitloc(FILE *); 66 static void emitpseudo(FILE *); 67 static void emitparents(FILE *); 68 static void emitroots(FILE *); 69 static void emitname2blk(FILE *); 70 71 #define SEP(pos, max) (((u_int)(pos) % (max)) == 0 ? "\n\t" : " ") 72 73 #define ARRNAME(n, l) (strchr((n), ARRCHR) && strncmp((n), (l), strlen((l))) == 0) 74 75 /* 76 * NEWLINE can only be used in the emitXXX functions. 77 * In most cases it can be subsumed into an fprintf. 78 */ 79 #define NEWLINE putc('\n', fp) 80 81 int 82 mkioconf(void) 83 { 84 FILE *fp; 85 86 qsort(packed, npacked, sizeof *packed, cforder); 87 if ((fp = fopen("ioconf.c.tmp", "w")) == NULL) { 88 warn("cannot write ioconf.c"); 89 return (1); 90 } 91 92 emithdr(fp); 93 emitcfdrivers(fp); 94 emitexterns(fp); 95 emitloc(fp); 96 emitparents(fp); 97 emitcfdata(fp); 98 emitcfattachinit(fp); 99 100 if (ioconfname == NULL) { 101 emitroots(fp); 102 emitpseudo(fp); 103 if (!do_devsw) 104 emitname2blk(fp); 105 } 106 107 fflush(fp); 108 if (ferror(fp)) { 109 warn("error writing ioconf.c"); 110 (void)fclose(fp); 111 #if 0 112 (void)unlink("ioconf.c.tmp"); 113 #endif 114 return (1); 115 } 116 117 (void)fclose(fp); 118 if (moveifchanged("ioconf.c.tmp", "ioconf.c") != 0) { 119 warn("error renaming ioconf.c"); 120 return (1); 121 } 122 return (0); 123 } 124 125 static int 126 cforder(const void *a, const void *b) 127 { 128 int n1, n2; 129 130 n1 = (*(const struct devi * const *)a)->i_cfindex; 131 n2 = (*(const struct devi * const *)b)->i_cfindex; 132 return (n1 - n2); 133 } 134 135 static void 136 emithdr(FILE *ofp) 137 { 138 FILE *ifp; 139 int n; 140 char ifnbuf[200], buf[BUFSIZ]; 141 char *ifn; 142 143 autogen_comment(ofp, "ioconf.c"); 144 145 (void)snprintf(ifnbuf, sizeof(ifnbuf), "arch/%s/conf/ioconf.incl.%s", 146 machine ? machine : "(null)", machine ? machine : "(null)"); 147 ifn = sourcepath(ifnbuf); 148 if ((ifp = fopen(ifn, "r")) != NULL) { 149 while ((n = fread(buf, 1, sizeof(buf), ifp)) > 0) 150 (void)fwrite(buf, 1, n, ofp); 151 if (ferror(ifp)) 152 err(EXIT_FAILURE, "error reading %s", ifn); 153 (void)fclose(ifp); 154 } else { 155 fputs("#include <sys/param.h>\n" 156 "#include <sys/conf.h>\n" 157 "#include <sys/device.h>\n" 158 "#include <sys/mount.h>\n", ofp); 159 } 160 free(ifn); 161 } 162 163 /* 164 * Emit an initialized array of character strings describing this 165 * attribute's locators. 166 */ 167 static int 168 cf_locators_print(const char *name, void *value, void *arg) 169 { 170 struct attr *a; 171 struct loclist *ll; 172 FILE *fp = arg; 173 174 a = value; 175 if (!a->a_iattr) 176 return (0); 177 178 if (a->a_locs) { 179 fprintf(fp, 180 "static const struct cfiattrdata %scf_iattrdata = {\n", 181 name); 182 fprintf(fp, "\t\"%s\", %d,\n\t{\n", name, a->a_loclen); 183 for (ll = a->a_locs; ll; ll = ll->ll_next) 184 fprintf(fp, "\t\t{ \"%s\", \"%s\", %s },\n", 185 ll->ll_name, 186 (ll->ll_string ? ll->ll_string : "NULL"), 187 (ll->ll_string ? ll->ll_string : "0")); 188 fprintf(fp, "\t}\n};\n"); 189 } else { 190 fprintf(fp, 191 "static const struct cfiattrdata %scf_iattrdata = {\n" 192 "\t\"%s\", 0, {\n\t\t{ NULL, NULL, 0 },\n\t}\n};\n", 193 name, name); 194 } 195 196 return 0; 197 } 198 199 static void 200 emitcfdrivers(FILE *fp) 201 { 202 struct devbase *d; 203 struct attrlist *al; 204 struct attr *a; 205 int has_iattrs; 206 207 NEWLINE; 208 ht_enumerate(attrtab, cf_locators_print, fp); 209 210 NEWLINE; 211 TAILQ_FOREACH(d, &allbases, d_next) { 212 if (!devbase_has_instances(d, WILD)) 213 continue; 214 has_iattrs = 0; 215 for (al = d->d_attrs; al != NULL; al = al->al_next) { 216 a = al->al_this; 217 if (a->a_iattr == 0) 218 continue; 219 if (has_iattrs == 0) 220 fprintf(fp, 221 "static const struct cfiattrdata * const %s_attrs[] = { ", 222 d->d_name); 223 has_iattrs = 1; 224 fprintf(fp, "&%scf_iattrdata, ", a->a_name); 225 } 226 if (has_iattrs) 227 fprintf(fp, "NULL };\n"); 228 fprintf(fp, "CFDRIVER_DECL(%s, %s, ", d->d_name, /* ) */ 229 d->d_classattr != NULL ? d->d_classattr->a_devclass 230 : "DV_DULL"); 231 if (has_iattrs) 232 fprintf(fp, "%s_attrs", d->d_name); 233 else 234 fprintf(fp, "NULL"); 235 fprintf(fp, /* ( */ ");\n\n"); 236 } 237 238 NEWLINE; 239 240 fprintf(fp, 241 "%sstruct cfdriver * const cfdriver_%s_%s[] = {\n", 242 ioconfname ? "static " : "", 243 ioconfname ? "ioconf" : "list", 244 ioconfname ? ioconfname : "initial"); 245 246 TAILQ_FOREACH(d, &allbases, d_next) { 247 if (!devbase_has_instances(d, WILD)) 248 continue; 249 fprintf(fp, "\t&%s_cd,\n", d->d_name); 250 } 251 fprintf(fp, "\tNULL\n};\n"); 252 } 253 254 static void 255 emitexterns(FILE *fp) 256 { 257 struct deva *da; 258 259 NEWLINE; 260 TAILQ_FOREACH(da, &alldevas, d_next) { 261 if (!deva_has_instances(da, WILD)) 262 continue; 263 fprintf(fp, "extern struct cfattach %s_ca;\n", 264 da->d_name); 265 } 266 } 267 268 static void 269 emitcfattachinit(FILE *fp) 270 { 271 struct devbase *d; 272 struct deva *da; 273 274 NEWLINE; 275 TAILQ_FOREACH(d, &allbases, d_next) { 276 if (!devbase_has_instances(d, WILD)) 277 continue; 278 if (d->d_ahead == NULL) 279 continue; 280 281 fprintf(fp, 282 "static struct cfattach * const %s_cfattachinit[] = {\n\t", 283 d->d_name); 284 for (da = d->d_ahead; da != NULL; da = da->d_bsame) { 285 if (!deva_has_instances(da, WILD)) 286 continue; 287 fprintf(fp, "&%s_ca, ", da->d_name); 288 } 289 fprintf(fp, "NULL\n};\n"); 290 } 291 292 NEWLINE; 293 fprintf(fp, "%sconst struct cfattachinit cfattach%s%s[] = {\n", 294 ioconfname ? "static " : "", 295 ioconfname ? "_ioconf_" : "init", 296 ioconfname ? ioconfname : ""); 297 298 TAILQ_FOREACH(d, &allbases, d_next) { 299 if (!devbase_has_instances(d, WILD)) 300 continue; 301 if (d->d_ahead == NULL) 302 continue; 303 304 fprintf(fp, "\t{ \"%s\", %s_cfattachinit },\n", 305 d->d_name, d->d_name); 306 } 307 308 fprintf(fp, "\t{ NULL, NULL }\n};\n"); 309 } 310 311 static void 312 emitloc(FILE *fp) 313 { 314 int i; 315 316 if (locators.used != 0) { 317 fprintf(fp, "\n/* locators */\n" 318 "static int loc[%d] = {", locators.used); 319 for (i = 0; i < locators.used; i++) 320 fprintf(fp, "%s%s,", SEP(i, 8), locators.vec[i]); 321 fprintf(fp, "\n};\n"); 322 } else if (*packed != NULL) { 323 /* We need to have *something*. */ 324 fprintf(fp, "\n/* locators */\n" 325 "static int loc[1] = { -1 };\n"); 326 } 327 } 328 329 /* 330 * Emit static parent data. 331 */ 332 static void 333 emitparents(FILE *fp) 334 { 335 struct pspec *p; 336 337 NEWLINE; 338 TAILQ_FOREACH(p, &allpspecs, p_list) { 339 if (p->p_devs == NULL || p->p_active != DEVI_ACTIVE) 340 continue; 341 fprintf(fp, 342 "static const struct cfparent pspec%d = {\n", p->p_inst); 343 fprintf(fp, "\t\"%s\", ", p->p_iattr->a_name); 344 if (p->p_atdev != NULL) { 345 fprintf(fp, "\"%s\", ", p->p_atdev->d_name); 346 if (p->p_atunit == WILD) 347 fprintf(fp, "DVUNIT_ANY"); 348 else 349 fprintf(fp, "%d", p->p_atunit); 350 } else 351 fprintf(fp, "NULL, 0"); 352 fprintf(fp, "\n};\n"); 353 } 354 } 355 356 /* 357 * Emit the cfdata array. 358 */ 359 static void 360 emitcfdata(FILE *fp) 361 { 362 struct devi **p, *i; 363 struct pspec *ps; 364 int unit, v; 365 const char *state, *basename, *attachment; 366 struct loclist *ll; 367 struct attr *a; 368 const char *loc; 369 char locbuf[20]; 370 const char *lastname = ""; 371 372 fprintf(fp, "\n" 373 "#define NORM FSTATE_NOTFOUND\n" 374 "#define STAR FSTATE_STAR\n" 375 "\n" 376 "%sstruct cfdata cfdata%s%s[] = {\n" 377 " /* driver attachment unit state " 378 "loc flags pspec */\n", 379 ioconfname ? "static " : "", 380 ioconfname ? "_ioconf_" : "", 381 ioconfname ? ioconfname : ""); 382 for (p = packed; (i = *p) != NULL; p++) { 383 /* the description */ 384 fprintf(fp, "/*%3d: %s at ", i->i_cfindex, i->i_name); 385 if ((ps = i->i_pspec) != NULL) { 386 if (ps->p_atdev != NULL && 387 ps->p_atunit != WILD) { 388 fprintf(fp, "%s%d", ps->p_atdev->d_name, 389 ps->p_atunit); 390 } else if (ps->p_atdev != NULL) { 391 fprintf(fp, "%s?", ps->p_atdev->d_name); 392 } else { 393 fprintf(fp, "%s?", ps->p_iattr->a_name); 394 } 395 396 a = ps->p_iattr; 397 for (ll = a->a_locs, v = 0; ll != NULL; 398 ll = ll->ll_next, v++) { 399 if (ARRNAME(ll->ll_name, lastname)) { 400 fprintf(fp, " %s %s", 401 ll->ll_name, i->i_locs[v]); 402 } else { 403 fprintf(fp, " %s %s", 404 ll->ll_name, 405 i->i_locs[v]); 406 lastname = ll->ll_name; 407 } 408 } 409 } else { 410 a = NULL; 411 fputs("root", fp); 412 } 413 414 fputs(" */\n", fp); 415 416 /* then the actual defining line */ 417 basename = i->i_base->d_name; 418 attachment = i->i_atdeva->d_name; 419 if (i->i_unit == STAR) { 420 unit = i->i_base->d_umax; 421 state = "STAR"; 422 } else { 423 unit = i->i_unit; 424 state = "NORM"; 425 } 426 if (i->i_locoff >= 0) { 427 (void)snprintf(locbuf, sizeof(locbuf), "loc+%3d", 428 i->i_locoff); 429 loc = locbuf; 430 } else 431 loc = "loc"; 432 fprintf(fp, " { \"%s\",%s\"%s\",%s%2d, %s, %7s, %#6x, ", 433 basename, strlen(basename) < 8 ? "\t\t" 434 : "\t", 435 attachment, strlen(attachment) < 5 ? "\t\t" 436 : "\t", 437 unit, state, loc, i->i_cfflags); 438 if (ps != NULL) 439 fprintf(fp, "&pspec%d },\n", ps->p_inst); 440 else 441 fputs("NULL },\n", fp); 442 } 443 fprintf(fp, " { %s,%s%s,%s%2d, %s, %7s, %#6x, %s }\n};\n", 444 "NULL", "\t\t", "NULL", "\t\t", 0, "0", "NULL", 0, "NULL"); 445 } 446 447 /* 448 * Emit the table of potential roots. 449 */ 450 static void 451 emitroots(FILE *fp) 452 { 453 struct devi **p, *i; 454 455 fputs("\nconst short cfroots[] = {\n", fp); 456 for (p = packed; (i = *p) != NULL; p++) { 457 if (i->i_at != NULL) 458 continue; 459 if (i->i_unit != 0 && 460 (i->i_unit != STAR || i->i_base->d_umax != 0)) 461 warnx("warning: `%s at root' is not unit 0", i->i_name); 462 fprintf(fp, "\t%2d /* %s */,\n", 463 i->i_cfindex, i->i_name); 464 } 465 fputs("\t-1\n};\n", fp); 466 } 467 468 /* 469 * Emit pseudo-device initialization. 470 */ 471 static void 472 emitpseudo(FILE *fp) 473 { 474 struct devi *i; 475 struct devbase *d; 476 477 fputs("\n/* pseudo-devices */\n", fp); 478 TAILQ_FOREACH(i, &allpseudo, i_next) { 479 fprintf(fp, "void %sattach(int);\n", 480 i->i_base->d_name); 481 } 482 fputs("\nstruct pdevinit pdevinit[] = {\n", fp); 483 TAILQ_FOREACH(i, &allpseudo, i_next) { 484 d = i->i_base; 485 fprintf(fp, "\t{ %sattach, %d },\n", 486 d->d_name, d->d_umax); 487 } 488 fputs("\t{ 0, 0 }\n};\n", fp); 489 } 490 491 /* 492 * Emit name to major block number table. 493 */ 494 void 495 emitname2blk(FILE *fp) 496 { 497 struct devbase *dev; 498 499 fputs("\n/* device name to major block number */\n", fp); 500 501 fprintf(fp, "struct devnametobdevmaj dev_name2blk[] = {\n"); 502 503 TAILQ_FOREACH(dev, &allbases, d_next) { 504 if (dev->d_major == NODEVMAJOR) 505 continue; 506 507 fprintf(fp, "\t{ \"%s\", %d },\n", 508 dev->d_name, dev->d_major); 509 } 510 fprintf(fp, "\t{ NULL, 0 }\n};\n"); 511 } 512
Indexes created Wed Sep 24 05:09:52 GMT 2025