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 1.16 2006/10/22 16:09:08 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), "../arch/%s/conf/Makefile.%s",
 148                  machinename, machinename);
 149         ifp = fopen(line, "r");
 150         if (ifp == NULL) {
 151                 snprintf(line, sizeof(line), "Makefile.%s", machinename);
 152                 ifp = fopen(line, "r");
 153         }
 154         if (ifp == NULL)
 155                 err(1, "%s", line);
 156         ofp = fopen(path("Makefile.new"), "w");
 157         if (ofp == NULL)
 158                 err(1, "%s", path("Makefile.new"));
 159         fprintf(ofp, "KERN_IDENT=%s\n", raisestr(ident));
 160         fprintf(ofp, "IDENT=");
 161         if (profiling)
 162                 fprintf(ofp, " -DGPROF");
 163
 164         if (cputype == 0) {
 165                 printf("cpu type must be specified\n");
 166                 exit(1);
 167         }
 168         fprintf(ofp, "\n");
 169         for (op = mkopt; op != NULL; op = op->op_next)
 170                 fprintf(ofp, "%s=%s\n", op->op_name, op->op_value);
 171         if (debugging)
 172                 fprintf(ofp, "DEBUG=-g\n");
 173         if (profiling) {
 174                 fprintf(ofp, "PROF=-pg\n");
 175                 fprintf(ofp, "PROFLEVEL=%d\n", profiling);
 176         }
 177         if (*srcdir != '\0')
 178                 fprintf(ofp,"S=%s\n", srcdir);
 179         while (fgets(line, BUFSIZ, ifp) != 0) {
 180                 if (*line != '%') {
 181                         fprintf(ofp, "%s", line);
 182                         continue;
 183                 }
 184                 if (strcmp(line, "%BEFORE_DEPEND\n") == 0)
 185                         do_before_depend(ofp);
 186                 else if (strcmp(line, "%OBJS\n") == 0)
 187                         do_objs(ofp);
 188                 else if (strcmp(line, "%MFILES\n") == 0)
 189                         do_mfiles(ofp);
 190                 else if (strcmp(line, "%CFILES\n") == 0)
 191                         do_cfiles(ofp);
 192                 else if (strcmp(line, "%SFILES\n") == 0)
 193                         do_sfiles(ofp);
 194                 else if (strcmp(line, "%RULES\n") == 0)
 195                         do_rules(ofp);
 196                 else if (strcmp(line, "%CLEAN\n") == 0)
 197                         do_clean(ofp);
 198                 else if (strncmp(line, "%VERSREQ=", sizeof("%VERSREQ=") - 1) == 0) {
 199                         versreq = atoi(line + sizeof("%VERSREQ=") - 1);
 200                         if (versreq != CONFIGVERS) {
 201                                 fprintf(stderr, "ERROR: version of config(8) does not match kernel!\n");
 202                                 fprintf(stderr, "config version = %d, ", CONFIGVERS);
 203                                 fprintf(stderr, "version required = %d\n\n", versreq);
 204                                 fprintf(stderr, "Make sure that /usr/src/usr.sbin/config is in sync\n");
 205                                 fprintf(stderr, "with your /usr/src/sys and install a new config binary\n");
 206                                 fprintf(stderr, "before trying this again.\n\n");
 207                                 fprintf(stderr, "If running the new config fails check your config\n");
 208                                 fprintf(stderr, "file against the GENERIC or LINT config files for\n");
 209                                 fprintf(stderr, "changes in config syntax, or option/device naming\n");
 210                                 fprintf(stderr, "conventions\n\n");
 211                                 exit(1);
 212                         }
 213                 } else
 214                         fprintf(stderr,
 215                             "Unknown %% construct in generic makefile: %s",
 216                             line);
 217         }
 218         fclose(ifp);
 219         fclose(ofp);
 220         moveifchanged(path("Makefile.new"), path("Makefile"));
 221 }
 222
 223 /*
 224  * Read in the information about files used in making the system.
 225  * Store it in the ftab linked list.
 226  */
 227 static void
 228 read_files(void)
 229 {
 230         FILE *fp;
 231         struct file_list *tp, *pf;
 232         struct device *dp;
 233         struct device *save_dp;
 234         struct opt *op;
 235         char *wd, *this, *needs, *special, *depends, *clean, *warning;
 236         char fname[MAXPATHLEN];
 237         int nonoptional;
 238         int nreqs, first = 1, configdep, isdup, std, filetype,
 239             imp_rule, no_obj, before_depend, mandatory;
 240
 241         ftab = 0;
 242         save_dp = NULL;
 243         if (ident == NULL) {
 244                 printf("no ident line specified\n");
 245                 exit(1);
 246         }
 247         snprintf(fname, sizeof(fname), "../conf/files");
 248 openit:
 249         fp = fopen(fname, "r");
 250         if (fp == NULL)
 251                 err(1, "%s", fname);
 252 next:
 253         /*
 254          * filename    [ standard | mandatory | optional ] [ config-dependent ]
 255          *      [ dev* | profiling-routine ] [ no-obj ]
 256          *      [ compile-with "compile rule" [no-implicit-rule] ]
 257          *      [ dependency "dependency-list"] [ before-depend ]
 258          *      [ clean "file-list"] [ warning "text warning" ]
 259          */
 260         wd = get_word(fp);
 261         if (wd == (char *)EOF) {
 262                 fclose(fp);
 263                 if (first == 1) {
 264                         first++;
 265                         snprintf(fname, sizeof(fname),
 266                             "../arch/%s/conf/files.%s",
 267                             machinename, machinename);
 268                         fp = fopen(fname, "r");
 269                         if (fp != NULL)
 270                                 goto next;
 271                         snprintf(fname, sizeof(fname),
 272                             "files.%s", machinename);
 273                         goto openit;
 274                 }
 275                 if (first == 2) {
 276                         first++;
 277                         snprintf(fname, sizeof(fname),
 278                             "files.%s", raisestr(ident));
 279                         fp = fopen(fname, "r");
 280                         if (fp != NULL)
 281                                 goto next;
 282                 }
 283                 return;
 284         }
 285         if (wd == 0)
 286                 goto next;
 287         if (wd[0] == '#')
 288         {
 289                 while (((wd = get_word(fp)) != (char *)EOF) && wd)
 290                         ;
 291                 goto next;
 292         }
 293         this = strdup(wd);
 294         next_word(fp, wd);
 295         if (wd == 0) {
 296                 printf("%s: No type for %s.\n",
 297                     fname, this);
 298                 exit(1);
 299         }
 300         if ((pf = fl_lookup(this)) && (pf->f_type != INVISIBLE || pf->f_flags))
 301                 isdup = 1;
 302         else
 303                 isdup = 0;
 304         tp = 0;
 305         if (first == 3 && pf == NULL && (tp = fltail_lookup(this)) != NULL) {
 306                 if (tp->f_type != INVISIBLE || tp->f_flags)
 307                         printf("%s: Local file %s overrides %s.\n",
 308                             fname, this, tp->f_fn);
 309                 else
 310                         printf("%s: Local file %s could override %s"
 311                             " with a different kernel configuration.\n",
 312                             fname, this, tp->f_fn);
 313         }
 314         nreqs = 0;
 315         special = NULL;
 316         depends = NULL;
 317         clean = NULL;
 318         warning = NULL;
 319         configdep = 0;
 320         needs = NULL;
 321         std = mandatory = nonoptional = 0;
 322         imp_rule = 0;
 323         no_obj = 0;
 324         before_depend = 0;
 325         filetype = NORMAL;
 326         if (strcmp(wd, "standard") == 0) {
 327                 std = 1;
 328         } else if (strcmp(wd, "mandatory") == 0) {
 329                 /*
 330                  * If an entry is marked "mandatory", config will abort if
 331                  * it's not called by a configuration line in the config
 332                  * file.  Apart from this, the device is handled like one
 333                  * marked "optional".
 334                  */
 335                 mandatory = 1;
 336         } else if (strcmp(wd, "nonoptional") == 0) {
 337                 nonoptional = 1;
 338         } else if (strcmp(wd, "optional") == 0) {
 339                 /* don't need to do anything */
 340         } else {
 341                 printf("%s: %s must be optional, mandatory or standard\n",
 342                        fname, this);
 343                 printf("Alternatively, your version of config(8) may be out of sync with your\nkernel source.\n");
 344                 exit(1);
 345         }
 346 nextparam:
 347         next_word(fp, wd);
 348         if (wd == NULL)
 349                 goto doneparam;
 350         if (strcmp(wd, "config-dependent") == 0) {
 351                 configdep++;
 352                 goto nextparam;
 353         }
 354         if (strcmp(wd, "no-obj") == 0) {
 355                 no_obj++;
 356                 goto nextparam;
 357         }
 358         if (strcmp(wd, "no-implicit-rule") == 0) {
 359                 if (special == NULL) {
 360                         printf("%s: alternate rule required when "
 361                                "\"no-implicit-rule\" is specified.\n",
 362                                fname);
 363                 }
 364                 imp_rule++;
 365                 goto nextparam;
 366         }
 367         if (strcmp(wd, "before-depend") == 0) {
 368                 before_depend++;
 369                 goto nextparam;
 370         }
 371         if (strcmp(wd, "dependency") == 0) {
 372                 next_quoted_word(fp, wd);
 373                 if (wd == NULL) {
 374                         printf("%s: %s missing compile command string.\n",
 375                                fname, this);
 376                         exit(1);
 377                 }
 378                 depends = strdup(wd);
 379                 goto nextparam;
 380         }
 381         if (strcmp(wd, "clean") == 0) {
 382                 next_quoted_word(fp, wd);
 383                 if (wd == NULL) {
 384                         printf("%s: %s missing clean file list.\n",
 385                                fname, this);
 386                         exit(1);
 387                 }
 388                 clean = strdup(wd);
 389                 goto nextparam;
 390         }
 391         if (strcmp(wd, "compile-with") == 0) {
 392                 next_quoted_word(fp, wd);
 393                 if (wd == NULL) {
 394                         printf("%s: %s missing compile command string.\n",
 395                                fname, this);
 396                         exit(1);
 397                 }
 398                 special = strdup(wd);
 399                 goto nextparam;
 400         }
 401         if (strcmp(wd, "warning") == 0) {
 402                 next_quoted_word(fp, wd);
 403                 if (wd == NULL) {
 404                         printf("%s: %s missing warning text string.\n",
 405                                 fname, this);
 406                         exit(1);
 407                 }
 408                 warning = strdup(wd);
 409                 goto nextparam;
 410         }
 411         nreqs++;
 412         if (strcmp(wd, "local") == 0) {
 413                 filetype = LOCAL;
 414                 goto nextparam;
 415         }
 416         if (strcmp(wd, "no-depend") == 0) {
 417                 filetype = NODEPEND;
 418                 goto nextparam;
 419         }
 420         if (strcmp(wd, "device-driver") == 0) {
 421                 printf("%s: `device-driver' flag obsolete.\n", fname);
 422                 exit(1);
 423         }
 424         if (strcmp(wd, "profiling-routine") == 0) {
 425                 filetype = PROFILING;
 426                 goto nextparam;
 427         }
 428         if (needs == 0 && nreqs == 1)
 429                 needs = strdup(wd);
 430         if (isdup)
 431                 goto invis;
 432         for (dp = dtab; dp != NULL; save_dp = dp, dp = dp->d_next)
 433                 if (strcmp(dp->d_name, wd) == 0) {
 434                         if (std && dp->d_type == PSEUDO_DEVICE &&
 435                             dp->d_count <= 0)
 436                                 dp->d_count = 1;
 437                         goto nextparam;
 438                 }
 439         if (mandatory) {
 440                 printf("%s: mandatory device \"%s\" not found\n",
 441                        fname, wd);
 442                 exit(1);
 443         }
 444         if (std) {
 445                 dp = malloc(sizeof(*dp));
 446                 bzero(dp, sizeof(*dp));
 447                 init_dev(dp);
 448                 dp->d_name = strdup(wd);
 449                 dp->d_type = PSEUDO_DEVICE;
 450                 dp->d_count = 1;
 451                 save_dp->d_next = dp;
 452                 goto nextparam;
 453         }
 454         for (op = opt; op != NULL; op = op->op_next) {
 455                 if (op->op_value == 0 && opteq(op->op_name, wd)) {
 456                         if (nreqs == 1) {
 457                                 free(needs);
 458                                 needs = NULL;
 459                         }
 460                         goto nextparam;
 461                 }
 462         }
 463         if (nonoptional) {
 464                 printf("%s: the option \"%s\" MUST be specified\n",
 465                         fname, wd);
 466                 exit(1);
 467         }
 468 invis:
 469         while ((wd = get_word(fp)) != 0)
 470                 ;
 471         if (tp == NULL)
 472                 tp = new_fent();
 473         tp->f_fn = this;
 474         tp->f_type = INVISIBLE;
 475         tp->f_needs = needs;
 476         tp->f_flags = isdup;
 477         tp->f_special = special;
 478         tp->f_depends = depends;
 479         tp->f_clean = clean;
 480         tp->f_warn = warning;
 481         goto next;
 482
 483 doneparam:
 484         if (std == 0 && nreqs == 0) {
 485                 printf("%s: what is %s optional on?\n",
 486                     fname, this);
 487                 exit(1);
 488         }
 489
 490         if (wd != NULL) {
 491                 printf("%s: syntax error describing %s\n",
 492                     fname, this);
 493                 exit(1);
 494         }
 495         if (filetype == PROFILING && profiling == 0)
 496                 goto next;
 497         if (tp == NULL)
 498                 tp = new_fent();
 499         tp->f_fn = this;
 500         tp->f_type = filetype;
 501         tp->f_flags = 0;
 502         if (configdep)
 503                 tp->f_flags |= CONFIGDEP;
 504         if (imp_rule)
 505                 tp->f_flags |= NO_IMPLCT_RULE;
 506         if (no_obj)
 507                 tp->f_flags |= NO_OBJ;
 508         if (before_depend)
 509                 tp->f_flags |= BEFORE_DEPEND;
 510         if (imp_rule)
 511                 tp->f_flags |= NO_IMPLCT_RULE;
 512         if (no_obj)
 513                 tp->f_flags |= NO_OBJ;
 514         tp->f_needs = needs;
 515         tp->f_special = special;
 516         tp->f_depends = depends;
 517         tp->f_clean = clean;
 518         tp->f_warn = warning;
 519         if (pf && pf->f_type == INVISIBLE)
 520                 pf->f_flags = 1;                /* mark as duplicate */
 521         goto next;
 522 }
 523
 524 static int
 525 opteq(char *cp, char *dp)
 526 {
 527         char c, d;
 528
 529         for (;; cp++, dp++) {
 530                 if (*cp != *dp) {
 531                         c = isupper(*cp) ? tolower(*cp) : *cp;
 532                         d = isupper(*dp) ? tolower(*dp) : *dp;
 533                         if (c != d)
 534                                 return(0);
 535                 }
 536                 if (*cp == 0)
 537                         return(1);
 538         }
 539 }
 540
 541 static void
 542 do_before_depend(FILE *fp)
 543 {
 544         struct file_list *tp;
 545         int lpos, len;
 546
 547         fputs("BEFORE_DEPEND=", fp);
 548         lpos = 15;
 549         for (tp = ftab; tp != NULL; tp = tp->f_next)
 550                 if (tp->f_flags & BEFORE_DEPEND) {
 551                         len = strlen(tp->f_fn);
 552                         if ((len = 3 + len) + lpos > 72) {
 553                                 lpos = 8;
 554                                 fputs("\\\n\t", fp);
 555                         }
 556                         if (tp->f_flags & NO_IMPLCT_RULE)
 557                                 fprintf(fp, "%s ", tp->f_fn);
 558                         else
 559                                 fprintf(fp, "$S/%s ", tp->f_fn);
 560                         lpos += len + 1;
 561                 }
 562         if (lpos != 8)
 563                 putc('\n', fp);
 564 }
 565
 566 static void
 567 do_objs(FILE *fp)
 568 {
 569         struct file_list *tp;
 570         int lpos, len;
 571         char *cp, och, *sp;
 572
 573         fprintf(fp, "OBJS=");
 574         lpos = 6;
 575         for (tp = ftab; tp != NULL; tp = tp->f_next) {
 576                 if (tp->f_type == INVISIBLE || tp->f_flags & NO_OBJ)
 577                         continue;
 578                 sp = tail(tp->f_fn);
 579                 cp = sp + (len = strlen(sp)) - 1;
 580                 och = *cp;
 581                 *cp = 'o';
 582                 if (len + lpos > 72) {
 583                         lpos = 8;
 584                         fprintf(fp, "\\\n\t");
 585                 }
 586                 fprintf(fp, "%s ", sp);
 587                 lpos += len + 1;
 588                 *cp = och;
 589         }
 590         if (lpos != 8)
 591                 putc('\n', fp);
 592 }
 593
 594 static void
 595 do_cfiles(FILE *fp)
 596 {
 597         struct file_list *tp;
 598         int lpos, len;
 599
 600         fputs("CFILES=", fp);
 601         lpos = 8;
 602         for (tp = ftab; tp != NULL; tp = tp->f_next)
 603                 if (tp->f_type != INVISIBLE && tp->f_type != NODEPEND) {
 604                         len = strlen(tp->f_fn);
 605                         if (tp->f_fn[len - 1] != 'c')
 606                                 continue;
 607                         if ((len = 3 + len) + lpos > 72) {
 608                                 lpos = 8;
 609                                 fputs("\\\n\t", fp);
 610                         }
 611                         if (tp->f_type != LOCAL)
 612                                 fprintf(fp, "$S/%s ", tp->f_fn);
 613                         else
 614                                 fprintf(fp, "%s ", tp->f_fn);
 615
 616                         lpos += len + 1;
 617                 }
 618         if (lpos != 8)
 619                 putc('\n', fp);
 620 }
 621
 622 static void
 623 do_mfiles(FILE *fp)
 624 {
 625         struct file_list *tp;
 626         int lpos, len;
 627
 628         fputs("MFILES=", fp);
 629         lpos = 8;
 630         for (tp = ftab; tp != NULL; tp = tp->f_next)
 631                 if (tp->f_type != INVISIBLE) {
 632                         len = strlen(tp->f_fn);
 633                         if (tp->f_fn[len - 1] != 'm' || tp->f_fn[len - 2] != '.')
 634                                 continue;
 635                         if ((len = 3 + len) + lpos > 72) {
 636                                 lpos = 8;
 637                                 fputs("\\\n\t", fp);
 638                         }
 639                         fprintf(fp, "$S/%s ", tp->f_fn);
 640                         lpos += len + 1;
 641                 }
 642         if (lpos != 8)
 643                 putc('\n', fp);
 644 }
 645
 646 static void
 647 do_sfiles(FILE *fp)
 648 {
 649         struct file_list *tp;
 650         int lpos, len;
 651
 652         fputs("SFILES=", fp);
 653         lpos = 8;
 654         for (tp = ftab; tp != NULL; tp = tp->f_next)
 655                 if (tp->f_type != INVISIBLE) {
 656                         len = strlen(tp->f_fn);
 657                         if (tp->f_fn[len - 1] != 'S' && tp->f_fn[len - 1] != 's')
 658                                 continue;
 659                         if ((len = 3 + len) + lpos > 72) {
 660                                 lpos = 8;
 661                                 fputs("\\\n\t", fp);
 662                         }
 663                         fprintf(fp, "$S/%s ", tp->f_fn);
 664                         lpos += len + 1;
 665                 }
 666         if (lpos != 8)
 667                 putc('\n', fp);
 668 }
 669
 670
 671 static char *
 672 tail(char *fn)
 673 {
 674         char *cp;
 675
 676         cp = strrchr(fn, '/');
 677         if (cp == 0)
 678                 return(fn);
 679         return(cp + 1);
 680 }
 681
 682 /*
 683  * Create the makerules for each file
 684  * which is part of the system.
 685  * Devices are processed with the special c2 option -i
 686  * which avoids any problem areas with i/o addressing
 687  * (e.g. for the VAX); assembler files are processed by as.
 688  */
 689 static void
 690 do_rules(FILE *f)
 691 {
 692         char *cp, *np, och, *tp;
 693         struct file_list *ftp;
 694         char *special;
 695
 696         for (ftp = ftab; ftp != NULL; ftp = ftp->f_next) {
 697                 if (ftp->f_type == INVISIBLE)
 698                         continue;
 699                 if (ftp->f_warn != NULL)
 700                         printf("WARNING: %s\n", ftp->f_warn);
 701                 cp = (np = ftp->f_fn) + strlen(ftp->f_fn) - 1;
 702                 och = *cp;
 703                 if (ftp->f_flags & NO_IMPLCT_RULE) {
 704                         if (ftp->f_depends)
 705                                 fprintf(f, "%s: %s\n", np, ftp->f_depends);
 706                         else
 707                                 fprintf(f, "%s: \n", np);
 708                 }
 709                 else {
 710                         *cp = '\0';
 711                         if (och == 'o') {
 712                                 fprintf(f, "%so:\n\t-cp $S/%so .\n\n",
 713                                         tail(np), np);
 714                                 continue;
 715                         }
 716                         if (ftp->f_depends)
 717                                 fprintf(f, "%so: $S/%s%c %s\n", tail(np),
 718                                         np, och, ftp->f_depends);
 719                         else
 720                                 fprintf(f, "%so: $S/%s%c\n", tail(np),
 721                                         np, och);
 722                 }
 723                 tp = tail(np);
 724                 special = ftp->f_special;
 725                 if (special == NULL) {
 726                         const char *ftype = NULL;
 727                         static char cmd[128];
 728
 729                         switch (ftp->f_type) {
 730
 731                         case NORMAL:
 732                                 ftype = "NORMAL";
 733                                 break;
 734
 735                         case PROFILING:
 736                                 if (!profiling)
 737                                         continue;
 738                                 ftype = "PROFILE";
 739                                 break;
 740
 741                         default:
 742                                 printf("config: don't know rules for %s\n", np);
 743                                 break;
 744                         }
 745                         snprintf(cmd, sizeof(cmd), "${%s_%c%s}",
 746                             ftype, toupper(och),
 747                             ftp->f_flags & CONFIGDEP ? "_C" : "");
 748                         special = cmd;
 749                 }
 750                 *cp = och;
 751                 fprintf(f, "\t%s\n\n", special);
 752         }
 753 }
 754
 755 static void
 756 do_clean(FILE *fp)
 757 {
 758         struct file_list *tp;
 759         int lpos, len;
 760
 761         fputs("CLEAN=", fp);
 762         lpos = 7;
 763         for (tp = ftab; tp != NULL; tp = tp->f_next)
 764                 if (tp->f_clean) {
 765                         len = strlen(tp->f_clean);
 766                         if (len + lpos > 72) {
 767                                 lpos = 8;
 768                                 fputs("\\\n\t", fp);
 769                         }
 770                         fprintf(fp, "%s ", tp->f_clean);
 771                         lpos += len + 1;
 772                 }
 773         if (lpos != 8)
 774                 putc('\n', fp);
 775 }
 776
 777 char *
 778 raisestr(char *str)
 779 {
 780         char *cp = str;
 781
 782         while (*str) {
 783                 if (islower(*str))
 784                         *str = toupper(*str);
 785                 str++;
 786         }
 787         return(cp);
 788 }