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 1.17 2006/11/07 06:57:02 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), "../machine/%s/conf/Makefile",
 148                  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, "MACHINE=%s\n", machinename);
 161         fprintf(ofp, "MACHINE_ARCH=%s\n", machinearchname);
 162         fprintf(ofp, ".makeenv MACHINE\n");
 163         fprintf(ofp, ".makeenv MACHINE_ARCH\n");
 164         fprintf(ofp, "IDENT=");
 165         if (profiling)
 166                 fprintf(ofp, " -DGPROF");
 167
 168         if (cputype == 0) {
 169                 printf("cpu type must be specified\n");
 170                 exit(1);
 171         }
 172         fprintf(ofp, "\n");
 173         for (op = mkopt; op != NULL; op = op->op_next)
 174                 fprintf(ofp, "%s=%s\n", op->op_name, op->op_value);
 175         if (debugging)
 176                 fprintf(ofp, "DEBUG=-g\n");
 177         if (profiling) {
 178                 fprintf(ofp, "PROF=-pg\n");
 179                 fprintf(ofp, "PROFLEVEL=%d\n", profiling);
 180         }
 181         if (*srcdir != '\0')
 182                 fprintf(ofp,"S=%s\n", srcdir);
 183         while (fgets(line, BUFSIZ, ifp) != 0) {
 184                 if (*line != '%') {
 185                         fprintf(ofp, "%s", line);
 186                         continue;
 187                 }
 188                 if (strcmp(line, "%BEFORE_DEPEND\n") == 0)
 189                         do_before_depend(ofp);
 190                 else if (strcmp(line, "%OBJS\n") == 0)
 191                         do_objs(ofp);
 192                 else if (strcmp(line, "%MFILES\n") == 0)
 193                         do_mfiles(ofp);
 194                 else if (strcmp(line, "%CFILES\n") == 0)
 195                         do_cfiles(ofp);
 196                 else if (strcmp(line, "%SFILES\n") == 0)
 197                         do_sfiles(ofp);
 198                 else if (strcmp(line, "%RULES\n") == 0)
 199                         do_rules(ofp);
 200                 else if (strcmp(line, "%CLEAN\n") == 0)
 201                         do_clean(ofp);
 202                 else if (strncmp(line, "%VERSREQ=", sizeof("%VERSREQ=") - 1) == 0) {
 203                         versreq = atoi(line + sizeof("%VERSREQ=") - 1);
 204                         if (versreq != CONFIGVERS) {
 205                                 fprintf(stderr, "ERROR: version of config(8) does not match kernel!\n");
 206                                 fprintf(stderr, "config version = %d, ", CONFIGVERS);
 207                                 fprintf(stderr, "version required = %d\n\n", versreq);
 208                                 fprintf(stderr, "Make sure that /usr/src/usr.sbin/config is in sync\n");
 209                                 fprintf(stderr, "with your /usr/src/sys and install a new config binary\n");
 210                                 fprintf(stderr, "before trying this again.\n\n");
 211                                 fprintf(stderr, "If running the new config fails check your config\n");
 212                                 fprintf(stderr, "file against the GENERIC or LINT config files for\n");
 213                                 fprintf(stderr, "changes in config syntax, or option/device naming\n");
 214                                 fprintf(stderr, "conventions\n\n");
 215                                 exit(1);
 216                         }
 217                 } else
 218                         fprintf(stderr,
 219                             "Unknown %% construct in generic makefile: %s",
 220                             line);
 221         }
 222         fclose(ifp);
 223         fclose(ofp);
 224         moveifchanged(path("Makefile.new"), path("Makefile"));
 225 }
 226
 227 /*
 228  * Read in the information about files used in making the system.
 229  * Store it in the ftab linked list.
 230  */
 231 static void
 232 read_files(void)
 233 {
 234         FILE *fp;
 235         struct file_list *tp, *pf;
 236         struct device *dp;
 237         struct device *save_dp;
 238         struct opt *op;
 239         char *wd, *this, *needs, *special, *depends, *clean, *warning;
 240         char fname[MAXPATHLEN];
 241         int nonoptional;
 242         int nreqs, first = 1, configdep, isdup, std, filetype,
 243             imp_rule, no_obj, before_depend, mandatory;
 244
 245         ftab = 0;
 246         save_dp = NULL;
 247         if (ident == NULL) {
 248                 printf("no ident line specified\n");
 249                 exit(1);
 250         }
 251         snprintf(fname, sizeof(fname), "../conf/files");
 252 openit:
 253         fp = fopen(fname, "r");
 254         if (fp == NULL)
 255                 err(1, "%s", fname);
 256 next:
 257         /*
 258          * filename    [ standard | mandatory | optional ] [ config-dependent ]
 259          *      [ dev* | profiling-routine ] [ no-obj ]
 260          *      [ compile-with "compile rule" [no-implicit-rule] ]
 261          *      [ dependency "dependency-list"] [ before-depend ]
 262          *      [ clean "file-list"] [ warning "text warning" ]
 263          */
 264         wd = get_word(fp);
 265         if (wd == (char *)EOF) {
 266                 fclose(fp);
 267                 if (first == 1) {
 268                         first++;
 269                         snprintf(fname, sizeof(fname),
 270                             "../machine/%s/conf/files",
 271                             machinename);
 272                         fp = fopen(fname, "r");
 273                         if (fp != NULL)
 274                                 goto next;
 275                         snprintf(fname, sizeof(fname),
 276                             "files.%s", machinename);
 277                         goto openit;
 278                 }
 279                 if (first == 2) {
 280                         first++;
 281                         snprintf(fname, sizeof(fname),
 282                             "files.%s", raisestr(ident));
 283                         fp = fopen(fname, "r");
 284                         if (fp != NULL)
 285                                 goto next;
 286                 }
 287                 return;
 288         }
 289         if (wd == 0)
 290                 goto next;
 291         if (wd[0] == '#')
 292         {
 293                 while (((wd = get_word(fp)) != (char *)EOF) && wd)
 294                         ;
 295                 goto next;
 296         }
 297         this = strdup(wd);
 298         next_word(fp, wd);
 299         if (wd == 0) {
 300                 printf("%s: No type for %s.\n",
 301                     fname, this);
 302                 exit(1);
 303         }
 304         if ((pf = fl_lookup(this)) && (pf->f_type != INVISIBLE || pf->f_flags))
 305                 isdup = 1;
 306         else
 307                 isdup = 0;
 308         tp = 0;
 309         if (first == 3 && pf == NULL && (tp = fltail_lookup(this)) != NULL) {
 310                 if (tp->f_type != INVISIBLE || tp->f_flags)
 311                         printf("%s: Local file %s overrides %s.\n",
 312                             fname, this, tp->f_fn);
 313                 else
 314                         printf("%s: Local file %s could override %s"
 315                             " with a different kernel configuration.\n",
 316                             fname, this, tp->f_fn);
 317         }
 318         nreqs = 0;
 319         special = NULL;
 320         depends = NULL;
 321         clean = NULL;
 322         warning = NULL;
 323         configdep = 0;
 324         needs = NULL;
 325         std = mandatory = nonoptional = 0;
 326         imp_rule = 0;
 327         no_obj = 0;
 328         before_depend = 0;
 329         filetype = NORMAL;
 330         if (strcmp(wd, "standard") == 0) {
 331                 std = 1;
 332         } else if (strcmp(wd, "mandatory") == 0) {
 333                 /*
 334                  * If an entry is marked "mandatory", config will abort if
 335                  * it's not called by a configuration line in the config
 336                  * file.  Apart from this, the device is handled like one
 337                  * marked "optional".
 338                  */
 339                 mandatory = 1;
 340         } else if (strcmp(wd, "nonoptional") == 0) {
 341                 nonoptional = 1;
 342         } else if (strcmp(wd, "optional") == 0) {
 343                 /* don't need to do anything */
 344         } else {
 345                 printf("%s: %s must be optional, mandatory or standard\n",
 346                        fname, this);
 347                 printf("Alternatively, your version of config(8) may be out of sync with your\nkernel source.\n");
 348                 exit(1);
 349         }
 350 nextparam:
 351         next_word(fp, wd);
 352         if (wd == NULL)
 353                 goto doneparam;
 354         if (strcmp(wd, "config-dependent") == 0) {
 355                 configdep++;
 356                 goto nextparam;
 357         }
 358         if (strcmp(wd, "no-obj") == 0) {
 359                 no_obj++;
 360                 goto nextparam;
 361         }
 362         if (strcmp(wd, "no-implicit-rule") == 0) {
 363                 if (special == NULL) {
 364                         printf("%s: alternate rule required when "
 365                                "\"no-implicit-rule\" is specified.\n",
 366                                fname);
 367                 }
 368                 imp_rule++;
 369                 goto nextparam;
 370         }
 371         if (strcmp(wd, "before-depend") == 0) {
 372                 before_depend++;
 373                 goto nextparam;
 374         }
 375         if (strcmp(wd, "dependency") == 0) {
 376                 next_quoted_word(fp, wd);
 377                 if (wd == NULL) {
 378                         printf("%s: %s missing compile command string.\n",
 379                                fname, this);
 380                         exit(1);
 381                 }
 382                 depends = strdup(wd);
 383                 goto nextparam;
 384         }
 385         if (strcmp(wd, "clean") == 0) {
 386                 next_quoted_word(fp, wd);
 387                 if (wd == NULL) {
 388                         printf("%s: %s missing clean file list.\n",
 389                                fname, this);
 390                         exit(1);
 391                 }
 392                 clean = strdup(wd);
 393                 goto nextparam;
 394         }
 395         if (strcmp(wd, "compile-with") == 0) {
 396                 next_quoted_word(fp, wd);
 397                 if (wd == NULL) {
 398                         printf("%s: %s missing compile command string.\n",
 399                                fname, this);
 400                         exit(1);
 401                 }
 402                 special = strdup(wd);
 403                 goto nextparam;
 404         }
 405         if (strcmp(wd, "warning") == 0) {
 406                 next_quoted_word(fp, wd);
 407                 if (wd == NULL) {
 408                         printf("%s: %s missing warning text string.\n",
 409                                 fname, this);
 410                         exit(1);
 411                 }
 412                 warning = strdup(wd);
 413                 goto nextparam;
 414         }
 415         nreqs++;
 416         if (strcmp(wd, "local") == 0) {
 417                 filetype = LOCAL;
 418                 goto nextparam;
 419         }
 420         if (strcmp(wd, "no-depend") == 0) {
 421                 filetype = NODEPEND;
 422                 goto nextparam;
 423         }
 424         if (strcmp(wd, "device-driver") == 0) {
 425                 printf("%s: `device-driver' flag obsolete.\n", fname);
 426                 exit(1);
 427         }
 428         if (strcmp(wd, "profiling-routine") == 0) {
 429                 filetype = PROFILING;
 430                 goto nextparam;
 431         }
 432         if (needs == 0 && nreqs == 1)
 433                 needs = strdup(wd);
 434         if (isdup)
 435                 goto invis;
 436         for (dp = dtab; dp != NULL; save_dp = dp, dp = dp->d_next)
 437                 if (strcmp(dp->d_name, wd) == 0) {
 438                         if (std && dp->d_type == PSEUDO_DEVICE &&
 439                             dp->d_count <= 0)
 440                                 dp->d_count = 1;
 441                         goto nextparam;
 442                 }
 443         if (mandatory) {
 444                 printf("%s: mandatory device \"%s\" not found\n",
 445                        fname, wd);
 446                 exit(1);
 447         }
 448         if (std) {
 449                 dp = malloc(sizeof(*dp));
 450                 bzero(dp, sizeof(*dp));
 451                 init_dev(dp);
 452                 dp->d_name = strdup(wd);
 453                 dp->d_type = PSEUDO_DEVICE;
 454                 dp->d_count = 1;
 455                 save_dp->d_next = dp;
 456                 goto nextparam;
 457         }
 458         for (op = opt; op != NULL; op = op->op_next) {
 459                 if (op->op_value == 0 && opteq(op->op_name, wd)) {
 460                         if (nreqs == 1) {
 461                                 free(needs);
 462                                 needs = NULL;
 463                         }
 464                         goto nextparam;
 465                 }
 466         }
 467         if (nonoptional) {
 468                 printf("%s: the option \"%s\" MUST be specified\n",
 469                         fname, wd);
 470                 exit(1);
 471         }
 472 invis:
 473         while ((wd = get_word(fp)) != 0)
 474                 ;
 475         if (tp == NULL)
 476                 tp = new_fent();
 477         tp->f_fn = this;
 478         tp->f_type = INVISIBLE;
 479         tp->f_needs = needs;
 480         tp->f_flags = isdup;
 481         tp->f_special = special;
 482         tp->f_depends = depends;
 483         tp->f_clean = clean;
 484         tp->f_warn = warning;
 485         goto next;
 486
 487 doneparam:
 488         if (std == 0 && nreqs == 0) {
 489                 printf("%s: what is %s optional on?\n",
 490                     fname, this);
 491                 exit(1);
 492         }
 493
 494         if (wd != NULL) {
 495                 printf("%s: syntax error describing %s\n",
 496                     fname, this);
 497                 exit(1);
 498         }
 499         if (filetype == PROFILING && profiling == 0)
 500                 goto next;
 501         if (tp == NULL)
 502                 tp = new_fent();
 503         tp->f_fn = this;
 504         tp->f_type = filetype;
 505         tp->f_flags = 0;
 506         if (configdep)
 507                 tp->f_flags |= CONFIGDEP;
 508         if (imp_rule)
 509                 tp->f_flags |= NO_IMPLCT_RULE;
 510         if (no_obj)
 511                 tp->f_flags |= NO_OBJ;
 512         if (before_depend)
 513                 tp->f_flags |= BEFORE_DEPEND;
 514         if (imp_rule)
 515                 tp->f_flags |= NO_IMPLCT_RULE;
 516         if (no_obj)
 517                 tp->f_flags |= NO_OBJ;
 518         tp->f_needs = needs;
 519         tp->f_special = special;
 520         tp->f_depends = depends;
 521         tp->f_clean = clean;
 522         tp->f_warn = warning;
 523         if (pf && pf->f_type == INVISIBLE)
 524                 pf->f_flags = 1;                /* mark as duplicate */
 525         goto next;
 526 }
 527
 528 static int
 529 opteq(char *cp, char *dp)
 530 {
 531         char c, d;
 532
 533         for (;; cp++, dp++) {
 534                 if (*cp != *dp) {
 535                         c = isupper(*cp) ? tolower(*cp) : *cp;
 536                         d = isupper(*dp) ? tolower(*dp) : *dp;
 537                         if (c != d)
 538                                 return(0);
 539                 }
 540                 if (*cp == 0)
 541                         return(1);
 542         }
 543 }
 544
 545 static void
 546 do_before_depend(FILE *fp)
 547 {
 548         struct file_list *tp;
 549         int lpos, len;
 550
 551         fputs("BEFORE_DEPEND=", fp);
 552         lpos = 15;
 553         for (tp = ftab; tp != NULL; tp = tp->f_next)
 554                 if (tp->f_flags & BEFORE_DEPEND) {
 555                         len = strlen(tp->f_fn);
 556                         if ((len = 3 + len) + lpos > 72) {
 557                                 lpos = 8;
 558                                 fputs("\\\n\t", fp);
 559                         }
 560                         if (tp->f_flags & NO_IMPLCT_RULE)
 561                                 fprintf(fp, "%s ", tp->f_fn);
 562                         else
 563                                 fprintf(fp, "$S/%s ", tp->f_fn);
 564                         lpos += len + 1;
 565                 }
 566         if (lpos != 8)
 567                 putc('\n', fp);
 568 }
 569
 570 static void
 571 do_objs(FILE *fp)
 572 {
 573         struct file_list *tp;
 574         int lpos, len;
 575         char *cp, och, *sp;
 576
 577         fprintf(fp, "OBJS=");
 578         lpos = 6;
 579         for (tp = ftab; tp != NULL; tp = tp->f_next) {
 580                 if (tp->f_type == INVISIBLE || tp->f_flags & NO_OBJ)
 581                         continue;
 582                 sp = tail(tp->f_fn);
 583                 cp = sp + (len = strlen(sp)) - 1;
 584                 och = *cp;
 585                 *cp = 'o';
 586                 if (len + lpos > 72) {
 587                         lpos = 8;
 588                         fprintf(fp, "\\\n\t");
 589                 }
 590                 fprintf(fp, "%s ", sp);
 591                 lpos += len + 1;
 592                 *cp = och;
 593         }
 594         if (lpos != 8)
 595                 putc('\n', fp);
 596 }
 597
 598 static void
 599 do_cfiles(FILE *fp)
 600 {
 601         struct file_list *tp;
 602         int lpos, len;
 603
 604         fputs("CFILES=", fp);
 605         lpos = 8;
 606         for (tp = ftab; tp != NULL; tp = tp->f_next)
 607                 if (tp->f_type != INVISIBLE && tp->f_type != NODEPEND) {
 608                         len = strlen(tp->f_fn);
 609                         if (tp->f_fn[len - 1] != 'c')
 610                                 continue;
 611                         if ((len = 3 + len) + lpos > 72) {
 612                                 lpos = 8;
 613                                 fputs("\\\n\t", fp);
 614                         }
 615                         if (tp->f_type != LOCAL)
 616                                 fprintf(fp, "$S/%s ", tp->f_fn);
 617                         else
 618                                 fprintf(fp, "%s ", tp->f_fn);
 619
 620                         lpos += len + 1;
 621                 }
 622         if (lpos != 8)
 623                 putc('\n', fp);
 624 }
 625
 626 static void
 627 do_mfiles(FILE *fp)
 628 {
 629         struct file_list *tp;
 630         int lpos, len;
 631
 632         fputs("MFILES=", fp);
 633         lpos = 8;
 634         for (tp = ftab; tp != NULL; tp = tp->f_next)
 635                 if (tp->f_type != INVISIBLE) {
 636                         len = strlen(tp->f_fn);
 637                         if (tp->f_fn[len - 1] != 'm' || tp->f_fn[len - 2] != '.')
 638                                 continue;
 639                         if ((len = 3 + len) + lpos > 72) {
 640                                 lpos = 8;
 641                                 fputs("\\\n\t", fp);
 642                         }
 643                         fprintf(fp, "$S/%s ", tp->f_fn);
 644                         lpos += len + 1;
 645                 }
 646         if (lpos != 8)
 647                 putc('\n', fp);
 648 }
 649
 650 static void
 651 do_sfiles(FILE *fp)
 652 {
 653         struct file_list *tp;
 654         int lpos, len;
 655
 656         fputs("SFILES=", fp);
 657         lpos = 8;
 658         for (tp = ftab; tp != NULL; tp = tp->f_next)
 659                 if (tp->f_type != INVISIBLE) {
 660                         len = strlen(tp->f_fn);
 661                         if (tp->f_fn[len - 1] != 'S' && tp->f_fn[len - 1] != 's')
 662                                 continue;
 663                         if ((len = 3 + len) + lpos > 72) {
 664                                 lpos = 8;
 665                                 fputs("\\\n\t", fp);
 666                         }
 667                         fprintf(fp, "$S/%s ", tp->f_fn);
 668                         lpos += len + 1;
 669                 }
 670         if (lpos != 8)
 671                 putc('\n', fp);
 672 }
 673
 674
 675 static char *
 676 tail(char *fn)
 677 {
 678         char *cp;
 679
 680         cp = strrchr(fn, '/');
 681         if (cp == 0)
 682                 return(fn);
 683         return(cp + 1);
 684 }
 685
 686 /*
 687  * Create the makerules for each file
 688  * which is part of the system.
 689  * Devices are processed with the special c2 option -i
 690  * which avoids any problem areas with i/o addressing
 691  * (e.g. for the VAX); assembler files are processed by as.
 692  */
 693 static void
 694 do_rules(FILE *f)
 695 {
 696         char *cp, *np, och, *tp;
 697         struct file_list *ftp;
 698         char *special;
 699
 700         for (ftp = ftab; ftp != NULL; ftp = ftp->f_next) {
 701                 if (ftp->f_type == INVISIBLE)
 702                         continue;
 703                 if (ftp->f_warn != NULL)
 704                         printf("WARNING: %s\n", ftp->f_warn);
 705                 cp = (np = ftp->f_fn) + strlen(ftp->f_fn) - 1;
 706                 och = *cp;
 707                 if (ftp->f_flags & NO_IMPLCT_RULE) {
 708                         if (ftp->f_depends)
 709                                 fprintf(f, "%s: %s\n", np, ftp->f_depends);
 710                         else
 711                                 fprintf(f, "%s: \n", np);
 712                 }
 713                 else {
 714                         *cp = '\0';
 715                         if (och == 'o') {
 716                                 fprintf(f, "%so:\n\t-cp $S/%so .\n\n",
 717                                         tail(np), np);
 718                                 continue;
 719                         }
 720                         if (ftp->f_depends)
 721                                 fprintf(f, "%so: $S/%s%c %s\n", tail(np),
 722                                         np, och, ftp->f_depends);
 723                         else
 724                                 fprintf(f, "%so: $S/%s%c\n", tail(np),
 725                                         np, och);
 726                 }
 727                 tp = tail(np);
 728                 special = ftp->f_special;
 729                 if (special == NULL) {
 730                         const char *ftype = NULL;
 731                         static char cmd[128];
 732
 733                         switch (ftp->f_type) {
 734
 735                         case NORMAL:
 736                                 ftype = "NORMAL";
 737                                 break;
 738
 739                         case PROFILING:
 740                                 if (!profiling)
 741                                         continue;
 742                                 ftype = "PROFILE";
 743                                 break;
 744
 745                         default:
 746                                 printf("config: don't know rules for %s\n", np);
 747                                 break;
 748                         }
 749                         snprintf(cmd, sizeof(cmd), "${%s_%c%s}",
 750                             ftype, toupper(och),
 751                             ftp->f_flags & CONFIGDEP ? "_C" : "");
 752                         special = cmd;
 753                 }
 754                 *cp = och;
 755                 fprintf(f, "\t%s\n\n", special);
 756         }
 757 }
 758
 759 static void
 760 do_clean(FILE *fp)
 761 {
 762         struct file_list *tp;
 763         int lpos, len;
 764
 765         fputs("CLEAN=", fp);
 766         lpos = 7;
 767         for (tp = ftab; tp != NULL; tp = tp->f_next)
 768                 if (tp->f_clean) {
 769                         len = strlen(tp->f_clean);
 770                         if (len + lpos > 72) {
 771                                 lpos = 8;
 772                                 fputs("\\\n\t", fp);
 773                         }
 774                         fprintf(fp, "%s ", tp->f_clean);
 775                         lpos += len + 1;
 776                 }
 777         if (lpos != 8)
 778                 putc('\n', fp);
 779 }
 780
 781 char *
 782 raisestr(char *str)
 783 {
 784         char *cp = str;
 785
 786         while (*str) {
 787                 if (islower(*str))
 788                         *str = toupper(*str);
 789                 str++;
 790         }
 791         return(cp);
 792 }