1 /* $NetBSD: mkioconf.c,v 1.2 2005/06/28 20:21:05 drochner 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 <errno.h> 49 #include <stdio.h> 50 #include <stdlib.h> 51 #include <string.h> 52 #include "defs.h" 53 54 /* 55 * Make ioconf.c. 56 */ 57 static int cf_locnames_print(const char *, void *, void *); 58 static int cforder(const void *, const void *); 59 static int emitcfdata(FILE *); 60 static int emitcfdrivers(FILE *); 61 static int emitexterns(FILE *); 62 static int emitcfattachinit(FILE *); 63 static int emithdr(FILE *); 64 static int emitloc(FILE *); 65 static int emitpseudo(FILE *); 66 static int emitparents(FILE *); 67 static int emitroots(FILE *); 68 static int emitname2blk(FILE *); 69 70 #define SEP(pos, max) (((u_int)(pos) % (max)) == 0 ? "\n\t" : " ") 71 72 #define ARRNAME(n, l) (strchr((n), ARRCHR) && strncmp((n), (l), strlen((l))) == 0) 73 74 /* 75 * NEWLINE can only be used in the emitXXX functions. 76 * In most cases it can be subsumed into an fprintf. 77 */ 78 #define NEWLINE if (putc('\n', fp) < 0) return (1) 79 80 int 81 mkioconf(void) 82 { 83 FILE *fp; 84 int v; 85 86 qsort(packed, npacked, sizeof *packed, cforder); 87 if ((fp = fopen("ioconf.c.tmp", "w")) == NULL) { 88 (void)fprintf(stderr, "config: cannot write ioconf.c: %s\n", 89 strerror(errno)); 90 return (1); 91 } 92 v = emithdr(fp); 93 if (v != 0 || emitcfdrivers(fp) || emitexterns(fp) || 94 emitcfattachinit(fp) || emitloc(fp) || emitparents(fp) || 95 emitcfdata(fp) || emitroots(fp) || emitpseudo(fp) || 96 (do_devsw ? 0 : emitname2blk(fp))) { 97 if (v >= 0) 98 (void)fprintf(stderr, 99 "config: error writing ioconf.c: %s\n", 100 strerror(errno)); 101 (void)fclose(fp); 102 /* (void)unlink("ioconf.c.tmp"); */ 103 return (1); 104 } 105 (void)fclose(fp); 106 if (moveifchanged("ioconf.c.tmp", "ioconf.c") != 0) { 107 (void)fprintf(stderr, "config: error renaming ioconf.c: %s\n", 108 strerror(errno)); 109 return (1); 110 } 111 return (0); 112 } 113 114 static int 115 cforder(const void *a, const void *b) 116 { 117 int n1, n2; 118 119 n1 = (*(struct devi **)a)->i_cfindex; 120 n2 = (*(struct devi **)b)->i_cfindex; 121 return (n1 - n2); 122 } 123 124 static int 125 emithdr(FILE *ofp) 126 { 127 FILE *ifp; 128 int n, rv; 129 char ifnbuf[200], buf[BUFSIZ]; 130 char *ifn; 131 132 if (fprintf(ofp, "\ 133 /*\n\ 134 * MACHINE GENERATED: DO NOT EDIT\n\ 135 *\n\ 136 * ioconf.c, from \"%s\"\n\ 137 */\n\n", conffile) < 0) 138 return (1); 139 140 rv = 0; 141 (void)snprintf(ifnbuf, sizeof(ifnbuf), "arch/%s/conf/ioconf.incl.%s", 142 machine, machine); 143 ifn = sourcepath(ifnbuf); 144 if ((ifp = fopen(ifn, "r")) != NULL) { 145 while ((n = fread(buf, 1, sizeof(buf), ifp)) > 0) 146 if (fwrite(buf, 1, n, ofp) != n) { 147 rv = 1; 148 break; 149 } 150 if (rv == 0 && ferror(ifp)) { 151 (void)fprintf(stderr, "config: error reading %s: %s\n", 152 ifn, strerror(errno)); 153 rv = -1; 154 } 155 (void)fclose(ifp); 156 } else { 157 if (fputs("\ 158 #include <sys/param.h>\n\ 159 #include <sys/conf.h>\n\ 160 #include <sys/device.h>\n\ 161 #include <sys/mount.h>\n", ofp) < 0) 162 rv = 1; 163 } 164 free(ifn); 165 return (rv); 166 } 167 168 static int 169 emitcfdrivers(FILE *fp) 170 { 171 struct devbase *d; 172 struct nvlist *nv; 173 struct attr *a; 174 int has_iattrs; 175 176 NEWLINE; 177 TAILQ_FOREACH(d, &allbases, d_next) { 178 if (!devbase_has_instances(d, WILD)) 179 continue; 180 has_iattrs = 0; 181 for (nv = d->d_attrs; nv != NULL; nv = nv->nv_next) { 182 a = nv->nv_ptr; 183 if (a->a_iattr == 0) 184 continue; 185 if (has_iattrs == 0 && 186 fprintf(fp, 187 "static const char * const %s_attrs[] = { ", 188 d->d_name) < 0) 189 return (1); 190 has_iattrs = 1; 191 if (fprintf(fp, "\"%s\", ", a->a_name) < 0) 192 return (1); 193 } 194 if (has_iattrs && fprintf(fp, "NULL };\n") < 0) 195 return (1); 196 if (fprintf(fp, "CFDRIVER_DECL(%s, %s, ", d->d_name, /* ) */ 197 d->d_classattr != NULL ? d->d_classattr->a_devclass 198 : "DV_DULL") < 0) 199 return (1); 200 if (has_iattrs && fprintf(fp, "%s_attrs", d->d_name) < 0) 201 return (1); 202 else if (has_iattrs == 0 && fprintf(fp, "NULL") < 0) 203 return (1); 204 if (fprintf(fp, /* ( */ ");\n\n") < 0) 205 return (1); 206 } 207 208 NEWLINE; 209 if (fprintf(fp, 210 "struct cfdriver * const cfdriver_list_initial[] = {\n") < 0) 211 return (1); 212 TAILQ_FOREACH(d, &allbases, d_next) { 213 if (!devbase_has_instances(d, WILD)) 214 continue; 215 if (fprintf(fp, "\t&%s_cd,\n", d->d_name) < 0) 216 return (1); 217 } 218 if (fprintf(fp, "\tNULL\n};\n") < 0) 219 return (1); 220 221 return (0); 222 } 223 224 static int 225 emitexterns(FILE *fp) 226 { 227 struct deva *da; 228 229 NEWLINE; 230 TAILQ_FOREACH(da, &alldevas, d_next) { 231 if (!deva_has_instances(da, WILD)) 232 continue; 233 if (fprintf(fp, "extern struct cfattach %s_ca;\n", 234 da->d_name) < 0) 235 return (1); 236 } 237 return (0); 238 } 239 240 static int 241 emitcfattachinit(FILE *fp) 242 { 243 struct devbase *d; 244 struct deva *da; 245 246 NEWLINE; 247 TAILQ_FOREACH(d, &allbases, d_next) { 248 if (!devbase_has_instances(d, WILD)) 249 continue; 250 if (d->d_ahead == NULL) 251 continue; 252 253 if (fprintf(fp, 254 "static struct cfattach * const %s_cfattachinit[] = {\n\t", 255 d->d_name) < 0) 256 return (1); 257 for (da = d->d_ahead; da != NULL; da = da->d_bsame) { 258 if (!deva_has_instances(da, WILD)) 259 continue; 260 if (fprintf(fp, "&%s_ca, ", da->d_name) < 0) 261 return (1); 262 } 263 if (fprintf(fp, "NULL\n};\n") < 0) 264 return (1); 265 } 266 267 NEWLINE; 268 if (fprintf(fp, 269 "const struct cfattachinit cfattachinit[] = {\n") < 0) 270 return (1); 271 272 TAILQ_FOREACH(d, &allbases, d_next) { 273 if (!devbase_has_instances(d, WILD)) 274 continue; 275 if (d->d_ahead == NULL) 276 continue; 277 278 if (fprintf(fp, "\t{ \"%s\", %s_cfattachinit },\n", 279 d->d_name, d->d_name) < 0) 280 return (1); 281 } 282 283 if (fprintf(fp, "\t{ NULL, NULL }\n};\n") < 0) 284 return (1); 285 286 return (0); 287 } 288 289 /* 290 * Emit an initialized array of character strings describing this 291 * attribute's locators. 292 */ 293 static int 294 cf_locnames_print(const char *name, void *value, void *arg) 295 { 296 struct attr *a; 297 struct nvlist *nv; 298 FILE *fp = arg; 299 300 a = value; 301 if (a->a_locs) { 302 if (fprintf(fp, 303 "static const char * const %scf_locnames[] = { ", 304 name) < 0) 305 return (1); 306 for (nv = a->a_locs; nv; nv = nv->nv_next) 307 if (fprintf(fp, "\"%s\", ", nv->nv_name) < 0) 308 return (1); 309 if (fprintf(fp, "NULL};\n") < 0) 310 return (1); 311 } 312 return 0; 313 } 314 315 static int 316 emitloc(FILE *fp) 317 { 318 int i; 319 320 if (locators.used != 0) { 321 if (fprintf(fp, "\n/* locators */\n\ 322 static int loc[%d] = {", locators.used) < 0) 323 return (1); 324 for (i = 0; i < locators.used; i++) 325 if (fprintf(fp, "%s%s,", SEP(i, 8), 326 locators.vec[i]) < 0) 327 return (1); 328 if (fprintf(fp, "\n};\n") < 0) 329 return (1); 330 } else if (*packed != NULL) { 331 /* We need to have *something*. */ 332 if (fprintf(fp, "\n/* locators */\n\ 333 static int loc[1] = { -1 };\n") < 0) 334 return (1); 335 } 336 337 if (*packed != NULL) 338 if (fprintf(fp, 339 "\nstatic const char * const nullcf_locnames[] = {NULL};\n") < 0) 340 return (1); 341 342 if (locators.used != 0) 343 return ht_enumerate(attrtab, cf_locnames_print, fp); 344 345 return (0); 346 } 347 348 /* 349 * Emit static parent data. 350 */ 351 static int 352 emitparents(FILE *fp) 353 { 354 struct pspec *p; 355 356 NEWLINE; 357 TAILQ_FOREACH(p, &allpspecs, p_list) { 358 if (p->p_devs == NULL) 359 continue; 360 if (fprintf(fp, 361 "static const struct cfparent pspec%d = {\n", p->p_inst) < 0) 362 return (1); 363 if (fprintf(fp, "\t\"%s\", ", p->p_iattr->a_name) < 0) 364 return (1); 365 if (p->p_atdev != NULL) { 366 if (fprintf(fp, "\"%s\", ", p->p_atdev->d_name) < 0) 367 return (1); 368 if (p->p_atunit == WILD && 369 fprintf(fp, "DVUNIT_ANY") < 0) 370 return (1); 371 else if (p->p_atunit != WILD && 372 fprintf(fp, "%d", p->p_atunit) < 0) 373 return (1); 374 } else if (fprintf(fp, "NULL, 0") < 0) 375 return (1); 376 if (fprintf(fp, "\n};\n") < 0) 377 return (1); 378 } 379 380 return (0); 381 } 382 383 /* 384 * Emit the cfdata array. 385 */ 386 static int 387 emitcfdata(FILE *fp) 388 { 389 struct devi **p, *i; 390 struct pspec *ps; 391 int unit, v; 392 const char *state, *basename, *attachment; 393 struct nvlist *nv; 394 struct attr *a; 395 char *loc; 396 char locbuf[20]; 397 const char *lastname = ""; 398 399 if (fprintf(fp, "\n\ 400 #define NORM FSTATE_NOTFOUND\n\ 401 #define STAR FSTATE_STAR\n\ 402 \n\ 403 struct cfdata cfdata[] = {\n\ 404 /* driver attachment unit state loc flags pspec\n\ 405 locnames */\n") < 0) 406 return (1); 407 for (p = packed; (i = *p) != NULL; p++) { 408 /* the description */ 409 if (fprintf(fp, "/*%3d: %s at ", i->i_cfindex, i->i_name) < 0) 410 return (1); 411 if ((ps = i->i_pspec) != NULL) { 412 if (ps->p_atdev != NULL && 413 ps->p_atunit != WILD) { 414 if (fprintf(fp, "%s%d", ps->p_atdev->d_name, 415 ps->p_atunit) < 0) 416 return (1); 417 } else if (ps->p_atdev != NULL) { 418 if (fprintf(fp, "%s?", ps->p_atdev->d_name) < 0) 419 return (1); 420 } else { 421 if (fprintf(fp, "%s?", ps->p_iattr->a_name) < 0) 422 return (1); 423 } 424 425 a = ps->p_iattr; 426 for (nv = a->a_locs, v = 0; nv != NULL; 427 nv = nv->nv_next, v++) { 428 if (ARRNAME(nv->nv_name, lastname)) { 429 if (fprintf(fp, " %s %s", 430 nv->nv_name, i->i_locs[v]) < 0) 431 return (1); 432 } else { 433 if (fprintf(fp, " %s %s", 434 nv->nv_name, 435 i->i_locs[v]) < 0) 436 return (1); 437 lastname = nv->nv_name; 438 } 439 } 440 } else { 441 a = NULL; 442 if (fputs("root", fp) < 0) 443 return (1); 444 } 445 446 if (fputs(" */\n", fp) < 0) 447 return (-1); 448 449 /* then the actual defining line */ 450 basename = i->i_base->d_name; 451 attachment = i->i_atdeva->d_name; 452 if (i->i_unit == STAR) { 453 unit = i->i_base->d_umax; 454 state = "STAR"; 455 } else { 456 unit = i->i_unit; 457 state = "NORM"; 458 } 459 if (i->i_locoff >= 0) { 460 (void)snprintf(locbuf, sizeof(locbuf), "loc+%3d", 461 i->i_locoff); 462 loc = locbuf; 463 } else 464 loc = "loc"; 465 if (fprintf(fp, " {\"%s\",%s\"%s\",%s%2d, %s, %7s, %#6x, ", 466 basename, strlen(basename) < 8 ? "\t\t" 467 : "\t", 468 attachment, strlen(attachment) < 5 ? "\t\t" 469 : "\t", 470 unit, state, loc, i->i_cfflags) < 0) 471 return (1); 472 if (ps != NULL) { 473 if (fprintf(fp, "&pspec%d,\n", ps->p_inst) < 0) 474 return (1); 475 } else if (fputs("NULL,\n", fp) < 0) 476 return (1); 477 if (fprintf(fp, " %scf_locnames},\n", 478 (a != NULL && a->a_locs != NULL) ? a->a_name 479 : "null") < 0) 480 return (1); 481 } 482 return (fputs(" {0}\n};\n", fp) < 0); 483 } 484 485 /* 486 * Emit the table of potential roots. 487 */ 488 static int 489 emitroots(FILE *fp) 490 { 491 struct devi **p, *i; 492 493 if (fputs("\nconst short cfroots[] = {\n", fp) < 0) 494 return (1); 495 for (p = packed; (i = *p) != NULL; p++) { 496 if (i->i_at != NULL) 497 continue; 498 if (i->i_unit != 0 && 499 (i->i_unit != STAR || i->i_base->d_umax != 0)) 500 (void)fprintf(stderr, 501 "config: warning: `%s at root' is not unit 0\n", 502 i->i_name); 503 if (fprintf(fp, "\t%2d /* %s */,\n", 504 i->i_cfindex, i->i_name) < 0) 505 return (1); 506 } 507 return (fputs("\t-1\n};\n", fp) < 0); 508 } 509 510 /* 511 * Emit pseudo-device initialization. 512 */ 513 static int 514 emitpseudo(FILE *fp) 515 { 516 struct devi *i; 517 struct devbase *d; 518 519 if (fputs("\n/* pseudo-devices */\n", fp) < 0) 520 return (1); 521 TAILQ_FOREACH(i, &allpseudo, i_next) { 522 if (fprintf(fp, "void %sattach(int);\n", 523 i->i_base->d_name) < 0) 524 return (1); 525 } 526 if (fputs("\nstruct pdevinit pdevinit[] = {\n", fp) < 0) 527 return (1); 528 TAILQ_FOREACH(i, &allpseudo, i_next) { 529 d = i->i_base; 530 if (fprintf(fp, "\t{ %sattach, %d },\n", 531 d->d_name, d->d_umax) < 0) 532 return (1); 533 } 534 return (fputs("\t{ 0, 0 }\n};\n", fp) < 0); 535 } 536 537 /* 538 * Emit name to major block number table. 539 */ 540 int 541 emitname2blk(FILE *fp) 542 { 543 struct devbase *dev; 544 545 if (fputs("\n/* device name to major block number */\n", fp) < 0) 546 return (1); 547 548 if (fprintf(fp, "struct devnametobdevmaj dev_name2blk[] = {\n") < 0) 549 return (1); 550 551 TAILQ_FOREACH(dev, &allbases, d_next) { 552 if (dev->d_major == NODEV) 553 continue; 554 555 if (fprintf(fp, "\t{ \"%s\", %d },\n", 556 dev->d_name, dev->d_major) < 0) 557 return (1); 558 } 559 if (fprintf(fp, "\t{ NULL, 0 }\n};\n") < 0) 560 return (1); 561 562 return (0); 563 } 564