1 /* $NetBSD: mkioconf.c,v 1.36 2024/04/05 00:43:42 riastradh 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/cdefs.h> 48 __RCSID("$NetBSD: mkioconf.c,v 1.36 2024/04/05 00:43:42 riastradh Exp $"); 49 50 #include <sys/param.h> 51 #include <err.h> 52 #include <errno.h> 53 #include <stdio.h> 54 #include <stdlib.h> 55 #include <string.h> 56 #include "defs.h" 57 58 /* 59 * Make ioconf.c. 60 */ 61 static int cf_locators_print(const char *, void *, void *); 62 static int cforder(const void *, const void *); 63 static void emitcfdata(FILE *); 64 static void emitcfdrivers(FILE *); 65 static void emitexterns(FILE *); 66 static void emitcfattachinit(FILE *); 67 static void emithdr(FILE *); 68 static void emitloc(FILE *); 69 static void emitpseudo(FILE *); 70 static void emitparents(FILE *); 71 static void emitroots(FILE *); 72 static void emitname2blk(FILE *); 73 74 #define SEP(pos, max) (((u_int)(pos) % (max)) == 0 ? "\n\t" : " ") 75 76 #define ARRNAME(n, l) (strchr((n), ARRCHR) && strncmp((n), (l), strlen((l))) == 0) 77 78 /* 79 * NEWLINE can only be used in the emitXXX functions. 80 * In most cases it can be subsumed into an fprintf. 81 */ 82 #define NEWLINE putc('\n', fp) 83 84 int 85 mkioconf(void) 86 { 87 FILE *fp; 88 89 qsort(packed, npacked, sizeof *packed, cforder); 90 if ((fp = fopen("ioconf.c.tmp", "w")) == NULL) { 91 warn("cannot write ioconf.c"); 92 return (1); 93 } 94 95 fprintf(fp, "#include \"ioconf.h\"\n"); 96 if (ioconfname) 97 fprintf(fp, "#define IOCONF %s\n", ioconfname); 98 99 emithdr(fp); 100 emitcfdrivers(fp); 101 emitexterns(fp); 102 emitloc(fp); 103 emitparents(fp); 104 emitcfdata(fp); 105 emitcfattachinit(fp); 106 107 if (ioconfname == NULL) { 108 emitroots(fp); 109 emitpseudo(fp); 110 if (!do_devsw) 111 emitname2blk(fp); 112 } 113 114 fflush(fp); 115 if (ferror(fp)) { 116 warn("error writing ioconf.c"); 117 (void)fclose(fp); 118 #if 0 119 (void)unlink("ioconf.c.tmp"); 120 #endif 121 return (1); 122 } 123 124 (void)fclose(fp); 125 if (moveifchanged("ioconf.c.tmp", "ioconf.c") != 0) { 126 warn("error renaming ioconf.c"); 127 return (1); 128 } 129 return (0); 130 } 131 132 static int 133 cforder(const void *a, const void *b) 134 { 135 int n1, n2; 136 137 n1 = (*(const struct devi * const *)a)->i_cfindex; 138 n2 = (*(const struct devi * const *)b)->i_cfindex; 139 if (n1 < n2) 140 return -1; 141 else if (n1 > n2) 142 return +1; 143 else 144 abort(); /* no ties possible */ 145 } 146 147 static void 148 emithdr(FILE *ofp) 149 { 150 FILE *ifp; 151 size_t n; 152 char ifnbuf[200], buf[BUFSIZ]; 153 char *ifn; 154 155 autogen_comment(ofp, "ioconf.c"); 156 157 (void)snprintf(ifnbuf, sizeof(ifnbuf), "%s/arch/%s/conf/ioconf.incl.%s", 158 srcdir, 159 machine ? machine : "(null)", machine ? machine : "(null)"); 160 ifn = ifnbuf; 161 if ((ifp = fopen(ifn, "r")) != NULL) { 162 while ((n = fread(buf, 1, sizeof(buf), ifp)) > 0) 163 (void)fwrite(buf, 1, n, ofp); 164 if (ferror(ifp)) 165 err(EXIT_FAILURE, "error reading %s", ifn); 166 (void)fclose(ifp); 167 } else { 168 fputs("#include <sys/param.h>\n" 169 "#include <sys/conf.h>\n" 170 "#include <sys/device.h>\n" 171 "#include <sys/mount.h>\n", ofp); 172 } 173 } 174 175 /* 176 * Emit an initialized array of character strings describing this 177 * attribute's locators. 178 */ 179 static int 180 cf_locators_print(const char *name, void *value, void *arg) 181 { 182 struct attr *a; 183 struct loclist *ll; 184 FILE *fp = arg; 185 186 a = value; 187 if (!a->a_iattr) 188 return (0); 189 if (ht_lookup(selecttab, name) == NULL) 190 return (0); 191 192 if (a->a_locs) { 193 fprintf(fp, 194 "static const struct cfiattrdata %scf_iattrdata = {\n", 195 name); 196 fprintf(fp, "\t\"%s\", %d, {\n", name, a->a_loclen); 197 for (ll = a->a_locs; ll; ll = ll->ll_next) 198 fprintf(fp, "\t\t{ \"%s\", \"%s\", %s },\n", 199 ll->ll_name, 200 (ll->ll_string ? ll->ll_string : "NULL"), 201 (ll->ll_string ? ll->ll_string : "0")); 202 fprintf(fp, "\t}\n};\n"); 203 } else { 204 fprintf(fp, 205 "static const struct cfiattrdata %scf_iattrdata = {\n" 206 "\t\"%s\", 0, {\n\t\t{ NULL, NULL, 0 },\n\t}\n};\n", 207 name, name); 208 } 209 210 return 0; 211 } 212 213 static void 214 emitcfdrivers(FILE *fp) 215 { 216 struct devbase *d; 217 struct attrlist *al; 218 struct attr *a; 219 int has_iattrs; 220 221 NEWLINE; 222 ht_enumerate(attrtab, cf_locators_print, fp); 223 224 NEWLINE; 225 TAILQ_FOREACH(d, &allbases, d_next) { 226 if (!devbase_has_instances(d, WILD)) 227 continue; 228 has_iattrs = 0; 229 for (al = d->d_attrs; al != NULL; al = al->al_next) { 230 a = al->al_this; 231 if (a->a_iattr == 0) 232 continue; 233 if (has_iattrs == 0) 234 fprintf(fp, 235 "static const struct cfiattrdata * const %s_attrs[] = { ", 236 d->d_name); 237 has_iattrs = 1; 238 fprintf(fp, "&%scf_iattrdata, ", a->a_name); 239 } 240 if (has_iattrs) 241 fprintf(fp, "NULL };\n"); 242 fprintf(fp, "CFDRIVER_DECL(%s, %s, ", d->d_name, /* ) */ 243 d->d_classattr != NULL ? d->d_classattr->a_devclass 244 : "DV_DULL"); 245 if (has_iattrs) 246 fprintf(fp, "%s_attrs", d->d_name); 247 else 248 fprintf(fp, "NULL"); 249 fprintf(fp, /* ( */ ");\n\n"); 250 } 251 252 NEWLINE; 253 254 fprintf(fp, 255 "%sstruct cfdriver * const cfdriver_%s_%s[] = {\n", 256 ioconfname ? "static " : "", 257 ioconfname ? "ioconf" : "list", 258 ioconfname ? ioconfname : "initial"); 259 260 TAILQ_FOREACH(d, &allbases, d_next) { 261 if (!devbase_has_instances(d, WILD)) 262 continue; 263 fprintf(fp, "\t&%s_cd,\n", d->d_name); 264 } 265 fprintf(fp, "\tNULL\n};\n"); 266 } 267 268 static void 269 emitexterns(FILE *fp) 270 { 271 struct deva *da; 272 273 NEWLINE; 274 TAILQ_FOREACH(da, &alldevas, d_next) { 275 if (!deva_has_instances(da, WILD)) 276 continue; 277 fprintf(fp, "extern struct cfattach %s_ca;\n", 278 da->d_name); 279 } 280 } 281 282 static void 283 emitcfattachinit(FILE *fp) 284 { 285 struct devbase *d; 286 struct deva *da; 287 288 NEWLINE; 289 TAILQ_FOREACH(d, &allbases, d_next) { 290 if (!devbase_has_instances(d, WILD)) 291 continue; 292 if (d->d_ahead == NULL) 293 continue; 294 295 fprintf(fp, 296 "static struct cfattach * const %s_cfattachinit[] = {\n\t", 297 d->d_name); 298 for (da = d->d_ahead; da != NULL; da = da->d_bsame) { 299 if (!deva_has_instances(da, WILD)) 300 continue; 301 fprintf(fp, "&%s_ca, ", da->d_name); 302 } 303 fprintf(fp, "NULL\n};\n"); 304 } 305 306 NEWLINE; 307 fprintf(fp, "%sconst struct cfattachinit cfattach%s%s[] = {\n", 308 ioconfname ? "static " : "", 309 ioconfname ? "_ioconf_" : "init", 310 ioconfname ? ioconfname : ""); 311 312 TAILQ_FOREACH(d, &allbases, d_next) { 313 if (!devbase_has_instances(d, WILD)) 314 continue; 315 if (d->d_ahead == NULL) 316 continue; 317 318 fprintf(fp, "\t{ \"%s\", %s_cfattachinit },\n", 319 d->d_name, d->d_name); 320 } 321 322 fprintf(fp, "\t{ NULL, NULL }\n};\n"); 323 } 324 325 static void 326 emitloc(FILE *fp) 327 { 328 int i; 329 330 if (locators.used != 0) { 331 fprintf(fp, "\n/* locators */\n" 332 "static int loc[%d] = {", locators.used); 333 for (i = 0; i < locators.used; i++) 334 fprintf(fp, "%s%s,", SEP(i, 8), locators.vec[i]); 335 fprintf(fp, "\n};\n"); 336 } 337 } 338 339 /* 340 * Emit static parent data. 341 */ 342 static void 343 emitparents(FILE *fp) 344 { 345 struct pspec *p; 346 int inst = -1; 347 348 NEWLINE; 349 TAILQ_FOREACH(p, &allpspecs, p_list) { 350 if (p->p_devs == NULL || p->p_active != DEVI_ACTIVE) 351 continue; 352 if (inst >= p->p_inst) 353 continue; 354 inst = p->p_inst; 355 fprintf(fp, 356 "static const struct cfparent pspec%d = {\n", p->p_inst); 357 fprintf(fp, "\t\"%s\", ", p->p_iattr->a_name); 358 if (p->p_atdev != NULL) { 359 fprintf(fp, "\"%s\", ", p->p_atdev->d_name); 360 if (p->p_atunit == WILD) 361 fprintf(fp, "DVUNIT_ANY"); 362 else 363 fprintf(fp, "%d", p->p_atunit); 364 } else 365 fprintf(fp, "NULL, 0"); 366 fprintf(fp, "\n};\n"); 367 } 368 } 369 370 /* 371 * Emit the cfdata array. 372 */ 373 static void 374 emitcfdata(FILE *fp) 375 { 376 struct devi **p, *i; 377 struct pspec *ps; 378 int unit, v; 379 const char *state, *basename, *attachment; 380 struct loclist *ll; 381 struct attr *a; 382 const char *loc; 383 char locbuf[20]; 384 const char *lastname = ""; 385 386 fprintf(fp, "\n" 387 "#define NORM FSTATE_NOTFOUND\n" 388 "#define STAR FSTATE_STAR\n" 389 "\n" 390 "%sstruct cfdata cfdata%s%s[] = {\n" 391 " /* driver attachment unit state " 392 " loc flags pspec */\n", 393 ioconfname ? "static " : "", 394 ioconfname ? "_ioconf_" : "", 395 ioconfname ? ioconfname : ""); 396 for (p = packed; (i = *p) != NULL; p++) { 397 /* the description */ 398 fprintf(fp, "/*%3d: %s at ", i->i_cfindex, i->i_name); 399 if ((ps = i->i_pspec) != NULL) { 400 if (ps->p_atdev != NULL && 401 ps->p_atunit != WILD) { 402 fprintf(fp, "%s%d", ps->p_atdev->d_name, 403 ps->p_atunit); 404 } else if (ps->p_atdev != NULL) { 405 fprintf(fp, "%s?", ps->p_atdev->d_name); 406 } else { 407 fprintf(fp, "%s?", ps->p_iattr->a_name); 408 } 409 410 a = ps->p_iattr; 411 for (ll = a->a_locs, v = 0; ll != NULL; 412 ll = ll->ll_next, v++) { 413 if (ARRNAME(ll->ll_name, lastname)) { 414 fprintf(fp, " %s %s", 415 ll->ll_name, i->i_locs[v]); 416 } else { 417 fprintf(fp, " %s %s", 418 ll->ll_name, 419 i->i_locs[v]); 420 lastname = ll->ll_name; 421 } 422 } 423 } else { 424 a = NULL; 425 fputs("root", fp); 426 } 427 428 fputs(" */\n", fp); 429 430 /* then the actual defining line */ 431 basename = i->i_base->d_name; 432 attachment = i->i_atdeva->d_name; 433 if (i->i_unit == STAR) { 434 unit = i->i_base->d_umax; 435 state = "STAR"; 436 } else { 437 unit = i->i_unit; 438 state = "NORM"; 439 } 440 if (i->i_locoff >= 0) { 441 (void)snprintf(locbuf, sizeof(locbuf), "loc+%3d", 442 i->i_locoff); 443 loc = locbuf; 444 } else 445 loc = "NULL"; 446 fprintf(fp, " { \"%s\",%s\"%s\",%s%2d, %s, %7s, %#6x, ", 447 basename, strlen(basename) < 7 ? "\t\t" 448 : "\t", 449 attachment, strlen(attachment) < 5 ? "\t\t" 450 : "\t", 451 unit, state, loc, i->i_cfflags); 452 if (ps != NULL) 453 fprintf(fp, "&pspec%d },\n", ps->p_inst); 454 else 455 fputs("NULL },\n", fp); 456 } 457 fprintf(fp, " { %s,%s%s,%s%2d, %s, %7s, %#6x, %s }\n};\n", 458 "NULL", "\t\t", "NULL", "\t\t", 0, " 0", "NULL", 0, "NULL"); 459 } 460 461 /* 462 * Emit the table of potential roots. 463 */ 464 static void 465 emitroots(FILE *fp) 466 { 467 struct devi **p, *i; 468 469 fputs("\nconst short cfroots[] = {\n", fp); 470 for (p = packed; (i = *p) != NULL; p++) { 471 if (i->i_at != NULL) 472 continue; 473 if (i->i_unit != 0 && 474 (i->i_unit != STAR || i->i_base->d_umax != 0)) 475 warnx("warning: `%s at root' is not unit 0", i->i_name); 476 fprintf(fp, "\t%2d /* %s */,\n", 477 i->i_cfindex, i->i_name); 478 } 479 fputs("\t-1\n};\n", fp); 480 } 481 482 /* 483 * Emit pseudo-device initialization. 484 */ 485 static void 486 emitpseudo(FILE *fp) 487 { 488 struct devi *i; 489 struct devbase *d; 490 491 fputs("\n/* pseudo-devices */\n", fp); 492 fputs("\nconst struct pdevinit pdevinit[] = {\n", fp); 493 TAILQ_FOREACH(i, &allpseudo, i_next) { 494 d = i->i_base; 495 fprintf(fp, "\t{ %sattach, %d },\n", 496 d->d_name, d->d_umax); 497 } 498 fputs("\t{ 0, 0 }\n};\n", fp); 499 } 500 501 /* 502 * Emit name to major block number table. 503 */ 504 void 505 emitname2blk(FILE *fp) 506 { 507 struct devbase *dev; 508 509 fputs("\n/* device name to major block number */\n", fp); 510 511 fprintf(fp, "struct devnametobdevmaj dev_name2blk[] = {\n"); 512 513 TAILQ_FOREACH(dev, &allbases, d_next) { 514 if (dev->d_major == NODEVMAJOR) 515 continue; 516 517 fprintf(fp, "\t{ \"%s\", %d },\n", 518 dev->d_name, dev->d_major); 519 } 520 fprintf(fp, "\t{ NULL, 0 }\n};\n"); 521 } 522
Indexes created Sat Sep 20 22:09:52 GMT 2025