usr.sbin/config/mkmakefile.c

   1 /*
   2  * Copyright (c) 1993, 19801990
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  *
  33  * @(#)mkmakefile.c     8.1 (Berkeley) 6/6/93
  34  * $FreeBSD: src/usr.sbin/config/mkmakefile.c,v 1.51.2.3 2001/01/23 00:09:32 peter Exp $
  35  * $DragonFly: src/usr.sbin/config/mkmakefile.c,v 1.15 2005/08/03 23:33:45 dillon Exp $
  36  */
  37
  38 /*
  39  * Build the makefile for the system, from
  40  * the information in the 'files' files and the
  41  * additional files for the machine being compiled to.
  42  */
  43
  44 #include <ctype.h>
  45 #include <err.h>
  46 #include <stdio.h>
  47 #include <string.h>
  48 #include <sys/param.h>
  49 #include "y.tab.h"
  50 #include "config.h"
  51 #include "configvers.h"
  52
  53 #define next_word(fp, wd)                                               \
  54         {                                                               \
  55                 char *word;                                             \
  56                                                                         \
  57                 word = get_word(fp);                                    \
  58                 if (word == (char *)EOF)                                \
  59                         return;                                         \
  60                 else                                                    \
  61                         wd = word;                                      \
  62         }
  63 #define next_quoted_word(fp, wd)                                        \
  64         {                                                               \
  65                 char *word;                                             \
  66                                                                         \
  67                 word = get_quoted_word(fp);                             \
  68                 if (word == (char *)EOF)                                \
  69                         return;                                         \
  70                 else                                                    \
  71                         wd = word;                                      \
  72         }
  73
  74 static struct file_list *fcur;
  75
  76 static char *tail(char *);
  77 static void do_clean(FILE *);
  78 static void do_rules(FILE *);
  79 static void do_sfiles(FILE *);
  80 static void do_mfiles(FILE *);
  81 static void do_cfiles(FILE *);
  82 static void do_objs(FILE *);
  83 static void do_before_depend(FILE *);
  84 static int opteq(char *, char *);
  85 static void read_files(void);
  86
  87 /*
  88  * Lookup a file, by name.
  89  */
  90 static struct file_list *
  91 fl_lookup(char *file)
  92 {
  93         struct file_list *fp;
  94
  95         for (fp = ftab; fp != NULL; fp = fp->f_next) {
  96                 if (strcmp(fp->f_fn, file) == 0)
  97                         return(fp);
  98         }
  99         return(0);
 100 }
 101
 102 /*
 103  * Lookup a file, by final component name.
 104  */
 105 static struct file_list *
 106 fltail_lookup(char *file)
 107 {
 108         struct file_list *fp;
 109
 110         for (fp = ftab; fp != NULL; fp = fp->f_next) {
 111                 if (strcmp(tail(fp->f_fn), tail(file)) == 0)
 112                         return(fp);
 113         }
 114         return(0);
 115 }
 116
 117 /*
 118  * Make a new file list entry
 119  */
 120 static struct file_list *
 121 new_fent(void)
 122 {
 123         struct file_list *fp;
 124
 125         fp = malloc(sizeof(*fp));
 126         bzero(fp, sizeof(*fp));
 127         if (fcur == NULL)
 128                 fcur = ftab = fp;
 129         else
 130                 fcur->f_next = fp;
 131         fcur = fp;
 132         return(fp);
 133 }
 134
 135 /*
 136  * Build the makefile from the skeleton
 137  */
 138 void
 139 makefile(void)
 140 {
 141         FILE *ifp, *ofp;
 142         char line[BUFSIZ];
 143         struct opt *op;
 144         int versreq;
 145
 146         read_files();
 147         snprintf(line, sizeof(line), "../../conf/Makefile.%s", machinename);
 148         ifp = fopen(line, "r");
 149         if (ifp == NULL) {
 150                 snprintf(line, sizeof(line), "Makefile.%s", machinename);
 151                 ifp = fopen(line, "r");
 152         }
 153         if (ifp == NULL)
 154                 err(1, "%s", line);
 155         ofp = fopen(path("Makefile.new"), "w");
 156         if (ofp == NULL)
 157                 err(1, "%s", path("Makefile.new"));
 158         fprintf(ofp, "KERN_IDENT=%s\n", raisestr(ident));
 159         fprintf(ofp, "IDENT=");
 160         if (profiling)
 161                 fprintf(ofp, " -DGPROF");
 162
 163         if (cputype == 0) {
 164                 printf("cpu type must be specified\n");
 165                 exit(1);
 166         }
 167         fprintf(ofp, "\n");
 168         for (op = mkopt; op != NULL; op = op->op_next)
 169                 fprintf(ofp, "%s=%s\n", op->op_name, op->op_value);
 170         if (debugging)
 171                 fprintf(ofp, "DEBUG=-g\n");
 172         if (profiling) {
 173                 fprintf(ofp, "PROF=-pg\n");
 174                 fprintf(ofp, "PROFLEVEL=%d\n", profiling);
 175         }
 176         if (*srcdir != '\0')
 177                 fprintf(ofp,"S=%s\n", srcdir);
 178         while (fgets(line, BUFSIZ, ifp) != 0) {
 179                 if (*line != '%') {
 180                         fprintf(ofp, "%s", line);
 181                         continue;
 182                 }
 183                 if (strcmp(line, "%BEFORE_DEPEND\n") == 0)
 184                         do_before_depend(ofp);
 185                 else if (strcmp(line, "%OBJS\n") == 0)
 186                         do_objs(ofp);
 187                 else if (strcmp(line, "%MFILES\n") == 0)
 188                         do_mfiles(ofp);
 189                 else if (strcmp(line, "%CFILES\n") == 0)
 190                         do_cfiles(ofp);
 191                 else if (strcmp(line, "%SFILES\n") == 0)
 192                         do_sfiles(ofp);
 193                 else if (strcmp(line, "%RULES\n") == 0)
 194                         do_rules(ofp);
 195                 else if (strcmp(line, "%CLEAN\n") == 0)
 196                         do_clean(ofp);
 197                 else if (strncmp(line, "%VERSREQ=", sizeof("%VERSREQ=") - 1) == 0) {
 198                         versreq = atoi(line + sizeof("%VERSREQ=") - 1);
 199                         if (versreq != CONFIGVERS) {
 200                                 fprintf(stderr, "ERROR: version of config(8) does not match kernel!\n");
 201                                 fprintf(stderr, "config version = %d, ", CONFIGVERS);
 202                                 fprintf(stderr, "version required = %d\n\n", versreq);
 203                                 fprintf(stderr, "Make sure that /usr/src/usr.sbin/config is in sync\n");
 204                                 fprintf(stderr, "with your /usr/src/sys and install a new config binary\n");
 205                                 fprintf(stderr, "before trying this again.\n\n");
 206                                 fprintf(stderr, "If running the new config fails check your config\n");
 207                                 fprintf(stderr, "file against the GENERIC or LINT config files for\n");
 208                                 fprintf(stderr, "changes in config syntax, or option/device naming\n");
 209                                 fprintf(stderr, "conventions\n\n");
 210                                 exit(1);
 211                         }
 212                 } else
 213                         fprintf(stderr,
 214                             "Unknown %% construct in generic makefile: %s",
 215                             line);
 216         }
 217         fclose(ifp);
 218         fclose(ofp);
 219         moveifchanged(path("Makefile.new"), path("Makefile"));
 220 }
 221
 222 /*
 223  * Read in the information about files used in making the system.
 224  * Store it in the ftab linked list.
 225  */
 226 static void
 227 read_files(void)
 228 {
 229         FILE *fp;
 230         struct file_list *tp, *pf;
 231         struct device *dp;
 232         struct device *save_dp;
 233         struct opt *op;
 234         char *wd, *this, *needs, *special, *depends, *clean, *warning;
 235         char fname[MAXPATHLEN];
 236         int nonoptional;
 237         int nreqs, first = 1, configdep, isdup, std, filetype,
 238             imp_rule, no_obj, before_depend, mandatory;
 239
 240         ftab = 0;
 241         save_dp = NULL;
 242         if (ident == NULL) {
 243                 printf("no ident line specified\n");
 244                 exit(1);
 245         }
 246         snprintf(fname, sizeof(fname), "../../conf/files");
 247 openit:
 248         fp = fopen(fname, "r");
 249         if (fp == NULL)
 250                 err(1, "%s", fname);
 251 next:
 252         /*
 253          * filename    [ standard | mandatory | optional ] [ config-dependent ]
 254          *      [ dev* | profiling-routine ] [ no-obj ]
 255          *      [ compile-with "compile rule" [no-implicit-rule] ]
 256          *      [ dependency "dependency-list"] [ before-depend ]
 257          *      [ clean "file-list"] [ warning "text warning" ]
 258          */
 259         wd = get_word(fp);
 260         if (wd == (char *)EOF) {
 261                 fclose(fp);
 262                 if (first == 1) {
 263                         first++;
 264                         snprintf(fname, sizeof(fname),
 265                             "../../conf/files.%s", machinename);
 266                         fp = fopen(fname, "r");
 267                         if (fp != NULL)
 268                                 goto next;
 269                         snprintf(fname, sizeof(fname),
 270                             "files.%s", machinename);
 271                         goto openit;
 272                 }
 273                 if (first == 2) {
 274                         first++;
 275                         snprintf(fname, sizeof(fname),
 276                             "files.%s", raisestr(ident));
 277                         fp = fopen(fname, "r");
 278                         if (fp != NULL)
 279                                 goto next;
 280                 }
 281                 return;
 282         }
 283         if (wd == 0)
 284                 goto next;
 285         if (wd[0] == '#')
 286         {
 287                 while (((wd = get_word(fp)) != (char *)EOF) && wd)
 288                         ;
 289                 goto next;
 290         }
 291         this = strdup(wd);
 292         next_word(fp, wd);
 293         if (wd == 0) {
 294                 printf("%s: No type for %s.\n",
 295                     fname, this);
 296                 exit(1);
 297         }
 298         if ((pf = fl_lookup(this)) && (pf->f_type != INVISIBLE || pf->f_flags))
 299                 isdup = 1;
 300         else
 301                 isdup = 0;
 302         tp = 0;
 303         if (first == 3 && pf == NULL && (tp = fltail_lookup(this)) != NULL) {
 304                 if (tp->f_type != INVISIBLE || tp->f_flags)
 305                         printf("%s: Local file %s overrides %s.\n",
 306                             fname, this, tp->f_fn);
 307                 else
 308                         printf("%s: Local file %s could override %s"
 309                             " with a different kernel configuration.\n",
 310                             fname, this, tp->f_fn);
 311         }
 312         nreqs = 0;
 313         special = NULL;
 314         depends = NULL;
 315         clean = NULL;
 316         warning = NULL;
 317         configdep = 0;
 318         needs = NULL;
 319         std = mandatory = nonoptional = 0;
 320         imp_rule = 0;
 321         no_obj = 0;
 322         before_depend = 0;
 323         filetype = NORMAL;
 324         if (strcmp(wd, "standard") == 0) {
 325                 std = 1;
 326         } else if (strcmp(wd, "mandatory") == 0) {
 327                 /*
 328                  * If an entry is marked "mandatory", config will abort if
 329                  * it's not called by a configuration line in the config
 330                  * file.  Apart from this, the device is handled like one
 331                  * marked "optional".
 332                  */
 333                 mandatory = 1;
 334         } else if (strcmp(wd, "nonoptional") == 0) {
 335                 nonoptional = 1;
 336         } else if (strcmp(wd, "optional") == 0) {
 337                 /* don't need to do anything */
 338         } else {
 339                 printf("%s: %s must be optional, mandatory or standard\n",
 340                        fname, this);
 341                 printf("Alternatively, your version of config(8) may be out of sync with your\nkernel source.\n");
 342                 exit(1);
 343         }
 344 nextparam:
 345         next_word(fp, wd);
 346         if (wd == NULL)
 347                 goto doneparam;
 348         if (strcmp(wd, "config-dependent") == 0) {
 349                 configdep++;
 350                 goto nextparam;
 351         }
 352         if (strcmp(wd, "no-obj") == 0) {
 353                 no_obj++;
 354                 goto nextparam;
 355         }
 356         if (strcmp(wd, "no-implicit-rule") == 0) {
 357                 if (special == NULL) {
 358                         printf("%s: alternate rule required when "
 359                                "\"no-implicit-rule\" is specified.\n",
 360                                fname);
 361                 }
 362                 imp_rule++;
 363                 goto nextparam;
 364         }
 365         if (strcmp(wd, "before-depend") == 0) {
 366                 before_depend++;
 367                 goto nextparam;
 368         }
 369         if (strcmp(wd, "dependency") == 0) {
 370                 next_quoted_word(fp, wd);
 371                 if (wd == NULL) {
 372                         printf("%s: %s missing compile command string.\n",
 373                                fname, this);
 374                         exit(1);
 375                 }
 376                 depends = strdup(wd);
 377                 goto nextparam;
 378         }
 379         if (strcmp(wd, "clean") == 0) {
 380                 next_quoted_word(fp, wd);
 381                 if (wd == NULL) {
 382                         printf("%s: %s missing clean file list.\n",
 383                                fname, this);
 384                         exit(1);
 385                 }
 386                 clean = strdup(wd);
 387                 goto nextparam;
 388         }
 389         if (strcmp(wd, "compile-with") == 0) {
 390                 next_quoted_word(fp, wd);
 391                 if (wd == NULL) {
 392                         printf("%s: %s missing compile command string.\n",
 393                                fname, this);
 394                         exit(1);
 395                 }
 396                 special = strdup(wd);
 397                 goto nextparam;
 398         }
 399         if (strcmp(wd, "warning") == 0) {
 400                 next_quoted_word(fp, wd);
 401                 if (wd == NULL) {
 402                         printf("%s: %s missing warning text string.\n",
 403                                 fname, this);
 404                         exit(1);
 405                 }
 406                 warning = strdup(wd);
 407                 goto nextparam;
 408         }
 409         nreqs++;
 410         if (strcmp(wd, "local") == 0) {
 411                 filetype = LOCAL;
 412                 goto nextparam;
 413         }
 414         if (strcmp(wd, "no-depend") == 0) {
 415                 filetype = NODEPEND;
 416                 goto nextparam;
 417         }
 418         if (strcmp(wd, "device-driver") == 0) {
 419                 printf("%s: `device-driver' flag obsolete.\n", fname);
 420                 exit(1);
 421         }
 422         if (strcmp(wd, "profiling-routine") == 0) {
 423                 filetype = PROFILING;
 424                 goto nextparam;
 425         }
 426         if (needs == 0 && nreqs == 1)
 427                 needs = strdup(wd);
 428         if (isdup)
 429                 goto invis;
 430         for (dp = dtab; dp != NULL; save_dp = dp, dp = dp->d_next)
 431                 if (strcmp(dp->d_name, wd) == 0) {
 432                         if (std && dp->d_type == PSEUDO_DEVICE &&
 433                             dp->d_count <= 0)
 434                                 dp->d_count = 1;
 435                         goto nextparam;
 436                 }
 437         if (mandatory) {
 438                 printf("%s: mandatory device \"%s\" not found\n",
 439                        fname, wd);
 440                 exit(1);
 441         }
 442         if (std) {
 443                 dp = malloc(sizeof(*dp));
 444                 bzero(dp, sizeof(*dp));
 445                 init_dev(dp);
 446                 dp->d_name = strdup(wd);
 447                 dp->d_type = PSEUDO_DEVICE;
 448                 dp->d_count = 1;
 449                 save_dp->d_next = dp;
 450                 goto nextparam;
 451         }
 452         for (op = opt; op != NULL; op = op->op_next) {
 453                 if (op->op_value == 0 && opteq(op->op_name, wd)) {
 454                         if (nreqs == 1) {
 455                                 free(needs);
 456                                 needs = NULL;
 457                         }
 458                         goto nextparam;
 459                 }
 460         }
 461         if (nonoptional) {
 462                 printf("%s: the option \"%s\" MUST be specified\n",
 463                         fname, wd);
 464                 exit(1);
 465         }
 466 invis:
 467         while ((wd = get_word(fp)) != 0)
 468                 ;
 469         if (tp == NULL)
 470                 tp = new_fent();
 471         tp->f_fn = this;
 472         tp->f_type = INVISIBLE;
 473         tp->f_needs = needs;
 474         tp->f_flags = isdup;
 475         tp->f_special = special;
 476         tp->f_depends = depends;
 477         tp->f_clean = clean;
 478         tp->f_warn = warning;
 479         goto next;
 480
 481 doneparam:
 482         if (std == 0 && nreqs == 0) {
 483                 printf("%s: what is %s optional on?\n",
 484                     fname, this);
 485                 exit(1);
 486         }
 487
 488         if (wd != NULL) {
 489                 printf("%s: syntax error describing %s\n",
 490                     fname, this);
 491                 exit(1);
 492         }
 493         if (filetype == PROFILING && profiling == 0)
 494                 goto next;
 495         if (tp == NULL)
 496                 tp = new_fent();
 497         tp->f_fn = this;
 498         tp->f_type = filetype;
 499         tp->f_flags = 0;
 500         if (configdep)
 501                 tp->f_flags |= CONFIGDEP;
 502         if (imp_rule)
 503                 tp->f_flags |= NO_IMPLCT_RULE;
 504         if (no_obj)
 505                 tp->f_flags |= NO_OBJ;
 506         if (before_depend)
 507                 tp->f_flags |= BEFORE_DEPEND;
 508         if (imp_rule)
 509                 tp->f_flags |= NO_IMPLCT_RULE;
 510         if (no_obj)
 511                 tp->f_flags |= NO_OBJ;
 512         tp->f_needs = needs;
 513         tp->f_special = special;
 514         tp->f_depends = depends;
 515         tp->f_clean = clean;
 516         tp->f_warn = warning;
 517         if (pf && pf->f_type == INVISIBLE)
 518                 pf->f_flags = 1;                /* mark as duplicate */
 519         goto next;
 520 }
 521
 522 static int
 523 opteq(char *cp, char *dp)
 524 {
 525         char c, d;
 526
 527         for (;; cp++, dp++) {
 528                 if (*cp != *dp) {
 529                         c = isupper(*cp) ? tolower(*cp) : *cp;
 530                         d = isupper(*dp) ? tolower(*dp) : *dp;
 531                         if (c != d)
 532                                 return(0);
 533                 }
 534                 if (*cp == 0)
 535                         return(1);
 536         }
 537 }
 538
 539 static void
 540 do_before_depend(FILE *fp)
 541 {
 542         struct file_list *tp;
 543         int lpos, len;
 544
 545         fputs("BEFORE_DEPEND=", fp);
 546         lpos = 15;
 547         for (tp = ftab; tp != NULL; tp = tp->f_next)
 548                 if (tp->f_flags & BEFORE_DEPEND) {
 549                         len = strlen(tp->f_fn);
 550                         if ((len = 3 + len) + lpos > 72) {
 551                                 lpos = 8;
 552                                 fputs("\\\n\t", fp);
 553                         }
 554                         if (tp->f_flags & NO_IMPLCT_RULE)
 555                                 fprintf(fp, "%s ", tp->f_fn);
 556                         else
 557                                 fprintf(fp, "$S/%s ", tp->f_fn);
 558                         lpos += len + 1;
 559                 }
 560         if (lpos != 8)
 561                 putc('\n', fp);
 562 }
 563
 564 static void
 565 do_objs(FILE *fp)
 566 {
 567         struct file_list *tp;
 568         int lpos, len;
 569         char *cp, och, *sp;
 570
 571         fprintf(fp, "OBJS=");
 572         lpos = 6;
 573         for (tp = ftab; tp != NULL; tp = tp->f_next) {
 574                 if (tp->f_type == INVISIBLE || tp->f_flags & NO_OBJ)
 575                         continue;
 576                 sp = tail(tp->f_fn);
 577                 cp = sp + (len = strlen(sp)) - 1;
 578                 och = *cp;
 579                 *cp = 'o';
 580                 if (len + lpos > 72) {
 581                         lpos = 8;
 582                         fprintf(fp, "\\\n\t");
 583                 }
 584                 fprintf(fp, "%s ", sp);
 585                 lpos += len + 1;
 586                 *cp = och;
 587         }
 588         if (lpos != 8)
 589                 putc('\n', fp);
 590 }
 591
 592 static void
 593 do_cfiles(FILE *fp)
 594 {
 595         struct file_list *tp;
 596         int lpos, len;
 597
 598         fputs("CFILES=", fp);
 599         lpos = 8;
 600         for (tp = ftab; tp != NULL; tp = tp->f_next)
 601                 if (tp->f_type != INVISIBLE && tp->f_type != NODEPEND) {
 602                         len = strlen(tp->f_fn);
 603                         if (tp->f_fn[len - 1] != 'c')
 604                                 continue;
 605                         if ((len = 3 + len) + lpos > 72) {
 606                                 lpos = 8;
 607                                 fputs("\\\n\t", fp);
 608                         }
 609                         if (tp->f_type != LOCAL)
 610                                 fprintf(fp, "$S/%s ", tp->f_fn);
 611                         else
 612                                 fprintf(fp, "%s ", tp->f_fn);
 613
 614                         lpos += len + 1;
 615                 }
 616         if (lpos != 8)
 617                 putc('\n', fp);
 618 }
 619
 620 static void
 621 do_mfiles(FILE *fp)
 622 {
 623         struct file_list *tp;
 624         int lpos, len;
 625
 626         fputs("MFILES=", fp);
 627         lpos = 8;
 628         for (tp = ftab; tp != NULL; tp = tp->f_next)
 629                 if (tp->f_type != INVISIBLE) {
 630                         len = strlen(tp->f_fn);
 631                         if (tp->f_fn[len - 1] != 'm' || tp->f_fn[len - 2] != '.')
 632                                 continue;
 633                         if ((len = 3 + len) + lpos > 72) {
 634                                 lpos = 8;
 635                                 fputs("\\\n\t", fp);
 636                         }
 637                         fprintf(fp, "$S/%s ", tp->f_fn);
 638                         lpos += len + 1;
 639                 }
 640         if (lpos != 8)
 641                 putc('\n', fp);
 642 }
 643
 644 static void
 645 do_sfiles(FILE *fp)
 646 {
 647         struct file_list *tp;
 648         int lpos, len;
 649
 650         fputs("SFILES=", fp);
 651         lpos = 8;
 652         for (tp = ftab; tp != NULL; tp = tp->f_next)
 653                 if (tp->f_type != INVISIBLE) {
 654                         len = strlen(tp->f_fn);
 655                         if (tp->f_fn[len - 1] != 'S' && tp->f_fn[len - 1] != 's')
 656                                 continue;
 657                         if ((len = 3 + len) + lpos > 72) {
 658                                 lpos = 8;
 659                                 fputs("\\\n\t", fp);
 660                         }
 661                         fprintf(fp, "$S/%s ", tp->f_fn);
 662                         lpos += len + 1;
 663                 }
 664         if (lpos != 8)
 665                 putc('\n', fp);
 666 }
 667
 668
 669 static char *
 670 tail(char *fn)
 671 {
 672         char *cp;
 673
 674         cp = strrchr(fn, '/');
 675         if (cp == 0)
 676                 return(fn);
 677         return(cp + 1);
 678 }
 679
 680 /*
 681  * Create the makerules for each file
 682  * which is part of the system.
 683  * Devices are processed with the special c2 option -i
 684  * which avoids any problem areas with i/o addressing
 685  * (e.g. for the VAX); assembler files are processed by as.
 686  */
 687 static void
 688 do_rules(FILE *f)
 689 {
 690         char *cp, *np, och, *tp;
 691         struct file_list *ftp;
 692         char *special;
 693
 694         for (ftp = ftab; ftp != NULL; ftp = ftp->f_next) {
 695                 if (ftp->f_type == INVISIBLE)
 696                         continue;
 697                 if (ftp->f_warn != NULL)
 698                         printf("WARNING: %s\n", ftp->f_warn);
 699                 cp = (np = ftp->f_fn) + strlen(ftp->f_fn) - 1;
 700                 och = *cp;
 701                 if (ftp->f_flags & NO_IMPLCT_RULE) {
 702                         if (ftp->f_depends)
 703                                 fprintf(f, "%s: %s\n", np, ftp->f_depends);
 704                         else
 705                                 fprintf(f, "%s: \n", np);
 706                 }
 707                 else {
 708                         *cp = '\0';
 709                         if (och == 'o') {
 710                                 fprintf(f, "%so:\n\t-cp $S/%so .\n\n",
 711                                         tail(np), np);
 712                                 continue;
 713                         }
 714                         if (ftp->f_depends)
 715                                 fprintf(f, "%so: $S/%s%c %s\n", tail(np),
 716                                         np, och, ftp->f_depends);
 717                         else
 718                                 fprintf(f, "%so: $S/%s%c\n", tail(np),
 719                                         np, och);
 720                 }
 721                 tp = tail(np);
 722                 special = ftp->f_special;
 723                 if (special == NULL) {
 724                         const char *ftype = NULL;
 725                         static char cmd[128];
 726
 727                         switch (ftp->f_type) {
 728
 729                         case NORMAL:
 730                                 ftype = "NORMAL";
 731                                 break;
 732
 733                         case PROFILING:
 734                                 if (!profiling)
 735                                         continue;
 736                                 ftype = "PROFILE";
 737                                 break;
 738
 739                         default:
 740                                 printf("config: don't know rules for %s\n", np);
 741                                 break;
 742                         }
 743                         snprintf(cmd, sizeof(cmd), "${%s_%c%s}",
 744                             ftype, toupper(och),
 745                             ftp->f_flags & CONFIGDEP ? "_C" : "");
 746                         special = cmd;
 747                 }
 748                 *cp = och;
 749                 fprintf(f, "\t%s\n\n", special);
 750         }
 751 }
 752
 753 static void
 754 do_clean(FILE *fp)
 755 {
 756         struct file_list *tp;
 757         int lpos, len;
 758
 759         fputs("CLEAN=", fp);
 760         lpos = 7;
 761         for (tp = ftab; tp != NULL; tp = tp->f_next)
 762                 if (tp->f_clean) {
 763                         len = strlen(tp->f_clean);
 764                         if (len + lpos > 72) {
 765                                 lpos = 8;
 766                                 fputs("\\\n\t", fp);
 767                         }
 768                         fprintf(fp, "%s ", tp->f_clean);
 769                         lpos += len + 1;
 770                 }
 771         if (lpos != 8)
 772                 putc('\n', fp);
 773 }
 774
 775 char *
 776 raisestr(char *str)
 777 {
 778         char *cp = str;
 779
 780         while (*str) {
 781                 if (islower(*str))
 782                         *str = toupper(*str);
 783                 str++;
 784         }
 785         return(cp);
 786 }