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  */
  36
  37 /*
  38  * Build the makefile for the system, from
  39  * the information in the 'files' files and the
  40  * additional files for the machine being compiled to.
  41  */
  42
  43 #include <ctype.h>
  44 #include <err.h>
  45 #include <stdio.h>
  46 #include <string.h>
  47 #include <sys/param.h>
  48 #include "y.tab.h"
  49 #include "config.h"
  50 #include "configvers.h"
  51
  52 #define next_word(fp, wd)                                               \
  53         {                                                               \
  54                 char *word;                                             \
  55                                                                         \
  56                 word = get_word(fp);                                    \
  57                 if (word == (char *)EOF)                                \
  58                         return;                                         \
  59                 else                                                    \
  60                         wd = word;                                      \
  61         }
  62 #define next_quoted_word(fp, wd)                                        \
  63         {                                                               \
  64                 char *word;                                             \
  65                                                                         \
  66                 word = get_quoted_word(fp);                             \
  67                 if (word == (char *)EOF)                                \
  68                         return;                                         \
  69                 else                                                    \
  70                         wd = word;                                      \
  71         }
  72
  73 static struct file_list *fcur;
  74
  75 static char *tail(char *);
  76 static void do_clean(FILE *);
  77 static void do_rules(FILE *);
  78 static void do_sfiles(FILE *);
  79 static void do_mfiles(FILE *);
  80 static void do_cfiles(FILE *);
  81 static void do_objs(FILE *);
  82 static void do_before_depend(FILE *);
  83 static int opteq(char *, char *);
  84 static void read_files(void);
  85
  86 /*
  87  * Lookup a file, by name.
  88  */
  89 static struct file_list *
  90 fl_lookup(char *file)
  91 {
  92         struct file_list *fp;
  93
  94         for (fp = ftab; fp != NULL; fp = fp->f_next) {
  95                 if (strcmp(fp->f_fn, file) == 0)
  96                         return(fp);
  97         }
  98         return(0);
  99 }
 100
 101 /*
 102  * Lookup a file, by final component name.
 103  */
 104 static struct file_list *
 105 fltail_lookup(char *file)
 106 {
 107         struct file_list *fp;
 108
 109         for (fp = ftab; fp != NULL; fp = fp->f_next) {
 110                 if (strcmp(tail(fp->f_fn), tail(file)) == 0)
 111                         return(fp);
 112         }
 113         return(0);
 114 }
 115
 116 /*
 117  * Make a new file list entry
 118  */
 119 static struct file_list *
 120 new_fent(void)
 121 {
 122         struct file_list *fp;
 123
 124         fp = malloc(sizeof(*fp));
 125         bzero(fp, sizeof(*fp));
 126         if (fcur == NULL)
 127                 fcur = ftab = fp;
 128         else
 129                 fcur->f_next = fp;
 130         fcur = fp;
 131         return(fp);
 132 }
 133
 134 /*
 135  * Build the makefile from the skeleton
 136  */
 137 void
 138 makefile(void)
 139 {
 140         FILE *ifp, *ofp;
 141         char line[BUFSIZ];
 142         struct opt *op;
 143         int versreq;
 144
 145         read_files();
 146         snprintf(line, sizeof(line), "../platform/%s/conf/Makefile",
 147                  platformname);
 148         ifp = fopen(line, "r");
 149         if (ifp == NULL) {
 150                 snprintf(line, sizeof(line), "Makefile.%s", platformname);
 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, "MACHINE_PLATFORM=%s\n", platformname);
 160         fprintf(ofp, "MACHINE=%s\n", machinename);
 161         fprintf(ofp, "MACHINE_ARCH=%s\n", machinearchname);
 162         fprintf(ofp, ".if defined(.PARSEDIR)\n");
 163         fprintf(ofp, ".export MACHINE_PLATFORM\n");
 164         fprintf(ofp, ".export MACHINE\n");
 165         fprintf(ofp, ".export MACHINE_ARCH\n");
 166         fprintf(ofp, ".else\n");
 167         fprintf(ofp, ".makeenv MACHINE_PLATFORM\n");
 168         fprintf(ofp, ".makeenv MACHINE\n");
 169         fprintf(ofp, ".makeenv MACHINE_ARCH\n");
 170         fprintf(ofp, ".endif\n");
 171         fprintf(ofp, "IDENT=");
 172         if (profiling) {
 173                 /* Don't compile kernel profiling code for vkernel */
 174                 if (strncmp(platformname, "vkernel", 6) != 0)
 175                         fprintf(ofp, " -DGPROF");
 176         }
 177
 178         if (cputype == 0) {
 179                 printf("cpu type must be specified\n");
 180                 exit(1);
 181         }
 182         fprintf(ofp, "\n");
 183         for (op = mkopt; op != NULL; op = op->op_next)
 184                 fprintf(ofp, "%s=%s\n", op->op_name, op->op_value);
 185         if (debugging)
 186                 fprintf(ofp, "DEBUG=-g\n");
 187         if (profiling) {
 188                 fprintf(ofp, "PROF=-pg\n");
 189                 fprintf(ofp, "PROFLEVEL=%d\n", profiling);
 190         }
 191         if (*srcdir != '\0')
 192                 fprintf(ofp,"S=%s\n", srcdir);
 193         while (fgets(line, BUFSIZ, ifp) != 0) {
 194                 if (*line != '%') {
 195                         fprintf(ofp, "%s", line);
 196                         continue;
 197                 }
 198                 if (strcmp(line, "%BEFORE_DEPEND\n") == 0)
 199                         do_before_depend(ofp);
 200                 else if (strcmp(line, "%OBJS\n") == 0)
 201                         do_objs(ofp);
 202                 else if (strcmp(line, "%MFILES\n") == 0)
 203                         do_mfiles(ofp);
 204                 else if (strcmp(line, "%CFILES\n") == 0)
 205                         do_cfiles(ofp);
 206                 else if (strcmp(line, "%SFILES\n") == 0)
 207                         do_sfiles(ofp);
 208                 else if (strcmp(line, "%RULES\n") == 0)
 209                         do_rules(ofp);
 210                 else if (strcmp(line, "%CLEAN\n") == 0)
 211                         do_clean(ofp);
 212                 else if (strncmp(line, "%VERSREQ=", sizeof("%VERSREQ=") - 1) == 0) {
 213                         versreq = atoi(line + sizeof("%VERSREQ=") - 1);
 214                         if (versreq != CONFIGVERS) {
 215                                 fprintf(stderr, "ERROR: version of config(8) does not match kernel!\n");
 216                                 fprintf(stderr, "config version = %d, ", CONFIGVERS);
 217                                 fprintf(stderr, "version required = %d\n\n", versreq);
 218                                 fprintf(stderr, "Make sure that /usr/src/usr.sbin/config is in sync\n");
 219                                 fprintf(stderr, "with your /usr/src/sys and install a new config binary\n");
 220                                 fprintf(stderr, "before trying this again.\n\n");
 221                                 fprintf(stderr, "If running the new config fails check your config\n");
 222                                 fprintf(stderr, "file against the GENERIC or LINT config files for\n");
 223                                 fprintf(stderr, "changes in config syntax, or option/device naming\n");
 224                                 fprintf(stderr, "conventions\n\n");
 225                                 exit(1);
 226                         }
 227                 } else
 228                         fprintf(stderr,
 229                             "Unknown %% construct in generic makefile: %s",
 230                             line);
 231         }
 232         fclose(ifp);
 233         fclose(ofp);
 234         moveifchanged(path("Makefile.new"), path("Makefile"));
 235 }
 236
 237 /*
 238  * Read in the information about files used in making the system.
 239  * Store it in the ftab linked list.
 240  */
 241 static void
 242 read_files(void)
 243 {
 244         FILE *fp;
 245         struct file_list *tp, *pf;
 246         struct device *dp;
 247         struct device *save_dp;
 248         struct opt *op;
 249         char *wd, *this, *needs, *special, *depends, *clean, *warning;
 250         char fname[MAXPATHLEN];
 251         int nonoptional;
 252         int nreqs, first = 1, configdep, isdup, std, filetype,
 253             imp_rule, no_obj, before_depend, nowerror, mandatory;
 254
 255         ftab = 0;
 256         save_dp = NULL;
 257         if (ident == NULL) {
 258                 printf("no ident line specified\n");
 259                 exit(1);
 260         }
 261         snprintf(fname, sizeof(fname), "../conf/files");
 262 openit:
 263         fp = fopen(fname, "r");
 264         if (fp == NULL)
 265                 err(1, "%s", fname);
 266 next:
 267         /*
 268          * filename    [ standard | mandatory | optional ] [ config-dependent ]
 269          *      [ dev* | profiling-routine ] [ no-obj ]
 270          *      [ compile-with "compile rule" [no-implicit-rule] ]
 271          *      [ dependency "dependency-list"] [ before-depend ]
 272          *      [ clean "file-list"] [ warning "text warning" ]
 273          */
 274         wd = get_word(fp);
 275         if (wd == (char *)EOF) {
 276                 fclose(fp);
 277                 if (first == 1) {
 278                         first++;
 279                         snprintf(fname, sizeof(fname),
 280                             "../platform/%s/conf/files",
 281                             platformname);
 282                         fp = fopen(fname, "r");
 283                         if (fp != NULL)
 284                                 goto next;
 285                         snprintf(fname, sizeof(fname),
 286                             "files.%s", platformname);
 287                         goto openit;
 288                 }
 289                 if (first == 2) {
 290                         first++;
 291                         snprintf(fname, sizeof(fname),
 292                             "files.%s", raisestr(ident));
 293                         fp = fopen(fname, "r");
 294                         if (fp != NULL)
 295                                 goto next;
 296                 }
 297                 return;
 298         }
 299         if (wd == NULL)
 300                 goto next;
 301         if (wd[0] == '#')
 302         {
 303                 while (((wd = get_word(fp)) != (char *)EOF) && wd)
 304                         ;
 305                 goto next;
 306         }
 307         this = strdup(wd);
 308         next_word(fp, wd);
 309         if (wd == NULL) {
 310                 printf("%s: No type for %s.\n",
 311                     fname, this);
 312                 exit(1);
 313         }
 314         if ((pf = fl_lookup(this)) && (pf->f_type != INVISIBLE || pf->f_flags))
 315                 isdup = 1;
 316         else
 317                 isdup = 0;
 318         tp = NULL;
 319         if (first == 3 && pf == NULL && (tp = fltail_lookup(this)) != NULL) {
 320                 if (tp->f_type != INVISIBLE || tp->f_flags)
 321                         printf("%s: Local file %s overrides %s.\n",
 322                             fname, this, tp->f_fn);
 323                 else
 324                         printf("%s: Local file %s could override %s"
 325                             " with a different kernel configuration.\n",
 326                             fname, this, tp->f_fn);
 327         }
 328         nreqs = 0;
 329         special = NULL;
 330         depends = NULL;
 331         clean = NULL;
 332         warning = NULL;
 333         configdep = 0;
 334         needs = NULL;
 335         std = mandatory = nonoptional = 0;
 336         imp_rule = 0;
 337         no_obj = 0;
 338         before_depend = 0;
 339         nowerror = 0;
 340         filetype = NORMAL;
 341         if (strcmp(wd, "standard") == 0) {
 342                 std = 1;
 343         } else if (strcmp(wd, "mandatory") == 0) {
 344                 /*
 345                  * If an entry is marked "mandatory", config will abort if
 346                  * it's not called by a configuration line in the config
 347                  * file.  Apart from this, the device is handled like one
 348                  * marked "optional".
 349                  */
 350                 mandatory = 1;
 351         } else if (strcmp(wd, "nonoptional") == 0) {
 352                 nonoptional = 1;
 353         } else if (strcmp(wd, "optional") == 0) {
 354                 /* don't need to do anything */
 355         } else {
 356                 printf("%s: %s must be optional, mandatory or standard\n",
 357                        fname, this);
 358                 printf("Alternatively, your version of config(8) may be out of sync with your\nkernel source.\n");
 359                 exit(1);
 360         }
 361 nextparam:
 362         next_word(fp, wd);
 363         if (wd == NULL)
 364                 goto doneparam;
 365         if (strcmp(wd, "config-dependent") == 0) {
 366                 configdep++;
 367                 goto nextparam;
 368         }
 369         if (strcmp(wd, "no-obj") == 0) {
 370                 no_obj++;
 371                 goto nextparam;
 372         }
 373         if (strcmp(wd, "no-implicit-rule") == 0) {
 374                 if (special == NULL) {
 375                         printf("%s: alternate rule required when "
 376                                "\"no-implicit-rule\" is specified.\n",
 377                                fname);
 378                 }
 379                 imp_rule++;
 380                 goto nextparam;
 381         }
 382         if (strcmp(wd, "before-depend") == 0) {
 383                 before_depend++;
 384                 goto nextparam;
 385         }
 386         if (strcmp(wd, "dependency") == 0) {
 387                 next_quoted_word(fp, wd);
 388                 if (wd == NULL) {
 389                         printf("%s: %s missing compile command string.\n",
 390                                fname, this);
 391                         exit(1);
 392                 }
 393                 depends = strdup(wd);
 394                 goto nextparam;
 395         }
 396         if (strcmp(wd, "clean") == 0) {
 397                 next_quoted_word(fp, wd);
 398                 if (wd == NULL) {
 399                         printf("%s: %s missing clean file list.\n",
 400                                fname, this);
 401                         exit(1);
 402                 }
 403                 clean = strdup(wd);
 404                 goto nextparam;
 405         }
 406         if (strcmp(wd, "compile-with") == 0) {
 407                 next_quoted_word(fp, wd);
 408                 if (wd == NULL) {
 409                         printf("%s: %s missing compile command string.\n",
 410                                fname, this);
 411                         exit(1);
 412                 }
 413                 special = strdup(wd);
 414                 goto nextparam;
 415         }
 416         if (strcmp(wd, "nowerror") == 0) {
 417                 nowerror++;
 418                 goto nextparam;
 419         }
 420         if (strcmp(wd, "warning") == 0) {
 421                 next_quoted_word(fp, wd);
 422                 if (wd == NULL) {
 423                         printf("%s: %s missing warning text string.\n",
 424                                 fname, this);
 425                         exit(1);
 426                 }
 427                 warning = strdup(wd);
 428                 goto nextparam;
 429         }
 430         nreqs++;
 431         if (strcmp(wd, "local") == 0) {
 432                 filetype = LOCAL;
 433                 goto nextparam;
 434         }
 435         if (strcmp(wd, "no-depend") == 0) {
 436                 filetype = NODEPEND;
 437                 goto nextparam;
 438         }
 439         if (strcmp(wd, "device-driver") == 0) {
 440                 printf("%s: `device-driver' flag obsolete.\n", fname);
 441                 exit(1);
 442         }
 443         if (strcmp(wd, "profiling-routine") == 0) {
 444                 filetype = PROFILING;
 445                 goto nextparam;
 446         }
 447         if (needs == NULL && nreqs == 1)
 448                 needs = strdup(wd);
 449         if (isdup)
 450                 goto invis;
 451         for (dp = dtab; dp != NULL; save_dp = dp, dp = dp->d_next)
 452                 if (strcmp(dp->d_name, wd) == 0) {
 453                         if (std && dp->d_type == PSEUDO_DEVICE &&
 454                             dp->d_count <= 0)
 455                                 dp->d_count = 1;
 456                         goto nextparam;
 457                 }
 458         if (mandatory) {
 459                 printf("%s: mandatory device \"%s\" not found\n",
 460                        fname, wd);
 461                 exit(1);
 462         }
 463         if (std) {
 464                 dp = malloc(sizeof(*dp));
 465                 bzero(dp, sizeof(*dp));
 466                 init_dev(dp);
 467                 dp->d_name = strdup(wd);
 468                 dp->d_type = PSEUDO_DEVICE;
 469                 dp->d_count = 1;
 470                 save_dp->d_next = dp;
 471                 goto nextparam;
 472         }
 473         for (op = opt; op != NULL; op = op->op_next) {
 474                 if (op->op_value == 0 && opteq(op->op_name, wd)) {
 475                         if (nreqs == 1) {
 476                                 free(needs);
 477                                 needs = NULL;
 478                         }
 479                         goto nextparam;
 480                 }
 481         }
 482         if (nonoptional) {
 483                 printf("%s: the option \"%s\" MUST be specified\n",
 484                         fname, wd);
 485                 exit(1);
 486         }
 487 invis:
 488         while ((wd = get_word(fp)) != NULL)
 489                 ;
 490         if (tp == NULL)
 491                 tp = new_fent();
 492         tp->f_fn = this;
 493         tp->f_type = INVISIBLE;
 494         tp->f_needs = needs;
 495         tp->f_flags = isdup;
 496         tp->f_special = special;
 497         tp->f_depends = depends;
 498         tp->f_clean = clean;
 499         tp->f_warn = warning;
 500         goto next;
 501
 502 doneparam:
 503         if (std == 0 && nreqs == 0) {
 504                 printf("%s: what is %s optional on?\n",
 505                     fname, this);
 506                 exit(1);
 507         }
 508
 509         if (wd != NULL) {
 510                 printf("%s: syntax error describing %s\n",
 511                     fname, this);
 512                 exit(1);
 513         }
 514         if (filetype == PROFILING && profiling == 0)
 515                 goto next;
 516         if (tp == NULL)
 517                 tp = new_fent();
 518         tp->f_fn = this;
 519         tp->f_type = filetype;
 520         tp->f_flags = 0;
 521         if (configdep)
 522                 tp->f_flags |= CONFIGDEP;
 523         if (imp_rule)
 524                 tp->f_flags |= NO_IMPLCT_RULE;
 525         if (no_obj)
 526                 tp->f_flags |= NO_OBJ;
 527         if (before_depend)
 528                 tp->f_flags |= BEFORE_DEPEND;
 529         if (nowerror)
 530                 tp->f_flags |= NOWERROR;
 531         if (imp_rule)
 532                 tp->f_flags |= NO_IMPLCT_RULE;
 533         if (no_obj)
 534                 tp->f_flags |= NO_OBJ;
 535         tp->f_needs = needs;
 536         tp->f_special = special;
 537         tp->f_depends = depends;
 538         tp->f_clean = clean;
 539         tp->f_warn = warning;
 540         if (pf && pf->f_type == INVISIBLE)
 541                 pf->f_flags = 1;                /* mark as duplicate */
 542         goto next;
 543 }
 544
 545 static int
 546 opteq(char *cp, char *dp)
 547 {
 548         char c, d;
 549
 550         for (;; cp++, dp++) {
 551                 if (*cp != *dp) {
 552                         c = isupper(*cp) ? tolower(*cp) : *cp;
 553                         d = isupper(*dp) ? tolower(*dp) : *dp;
 554                         if (c != d)
 555                                 return(0);
 556                 }
 557                 if (*cp == 0)
 558                         return(1);
 559         }
 560 }
 561
 562 static void
 563 do_before_depend(FILE *fp)
 564 {
 565         struct file_list *tp;
 566         int lpos, len;
 567
 568         fputs("BEFORE_DEPEND=", fp);
 569         lpos = 15;
 570         for (tp = ftab; tp != NULL; tp = tp->f_next)
 571                 if (tp->f_flags & BEFORE_DEPEND) {
 572                         len = strlen(tp->f_fn);
 573                         if ((len = 3 + len) + lpos > 72) {
 574                                 lpos = 8;
 575                                 fputs("\\\n\t", fp);
 576                         }
 577                         if (tp->f_flags & NO_IMPLCT_RULE)
 578                                 fprintf(fp, "%s ", tp->f_fn);
 579                         else
 580                                 fprintf(fp, "$S/%s ", tp->f_fn);
 581                         lpos += len + 1;
 582                 }
 583         if (lpos != 8)
 584                 putc('\n', fp);
 585 }
 586
 587 static void
 588 do_objs(FILE *fp)
 589 {
 590         struct file_list *tp;
 591         int lpos, len;
 592         char *cp, och, *sp;
 593
 594         fprintf(fp, "OBJS=");
 595         lpos = 6;
 596         for (tp = ftab; tp != NULL; tp = tp->f_next) {
 597                 if (tp->f_type == INVISIBLE || tp->f_flags & NO_OBJ)
 598                         continue;
 599                 sp = tail(tp->f_fn);
 600                 cp = sp + (len = strlen(sp)) - 1;
 601                 och = *cp;
 602                 *cp = 'o';
 603                 if (len + lpos > 72) {
 604                         lpos = 8;
 605                         fprintf(fp, "\\\n\t");
 606                 }
 607                 fprintf(fp, "%s ", sp);
 608                 lpos += len + 1;
 609                 *cp = och;
 610         }
 611         if (lpos != 8)
 612                 putc('\n', fp);
 613 }
 614
 615 static void
 616 do_cfiles(FILE *fp)
 617 {
 618         struct file_list *tp;
 619         int lpos, len;
 620
 621         fputs("CFILES=", fp);
 622         lpos = 8;
 623         for (tp = ftab; tp != NULL; tp = tp->f_next)
 624                 if (tp->f_type != INVISIBLE && tp->f_type != NODEPEND) {
 625                         len = strlen(tp->f_fn);
 626                         if (tp->f_fn[len - 1] != 'c')
 627                                 continue;
 628                         if ((len = 3 + len) + lpos > 72) {
 629                                 lpos = 8;
 630                                 fputs("\\\n\t", fp);
 631                         }
 632                         if (tp->f_type != LOCAL)
 633                                 fprintf(fp, "$S/%s ", tp->f_fn);
 634                         else
 635                                 fprintf(fp, "%s ", tp->f_fn);
 636
 637                         lpos += len + 1;
 638                 }
 639         if (lpos != 8)
 640                 putc('\n', fp);
 641 }
 642
 643 static void
 644 do_mfiles(FILE *fp)
 645 {
 646         struct file_list *tp;
 647         int lpos, len;
 648
 649         fputs("MFILES=", fp);
 650         lpos = 8;
 651         for (tp = ftab; tp != NULL; tp = tp->f_next)
 652                 if (tp->f_type != INVISIBLE) {
 653                         len = strlen(tp->f_fn);
 654                         if (tp->f_fn[len - 1] != 'm' || tp->f_fn[len - 2] != '.')
 655                                 continue;
 656                         if ((len = 3 + len) + lpos > 72) {
 657                                 lpos = 8;
 658                                 fputs("\\\n\t", fp);
 659                         }
 660                         fprintf(fp, "$S/%s ", tp->f_fn);
 661                         lpos += len + 1;
 662                 }
 663         if (lpos != 8)
 664                 putc('\n', fp);
 665 }
 666
 667 static void
 668 do_sfiles(FILE *fp)
 669 {
 670         struct file_list *tp;
 671         int lpos, len;
 672
 673         fputs("SFILES=", fp);
 674         lpos = 8;
 675         for (tp = ftab; tp != NULL; tp = tp->f_next)
 676                 if (tp->f_type != INVISIBLE) {
 677                         len = strlen(tp->f_fn);
 678                         if (tp->f_fn[len - 1] != 'S' && tp->f_fn[len - 1] != 's')
 679                                 continue;
 680                         if ((len = 3 + len) + lpos > 72) {
 681                                 lpos = 8;
 682                                 fputs("\\\n\t", fp);
 683                         }
 684                         fprintf(fp, "$S/%s ", tp->f_fn);
 685                         lpos += len + 1;
 686                 }
 687         if (lpos != 8)
 688                 putc('\n', fp);
 689 }
 690
 691
 692 static char *
 693 tail(char *fn)
 694 {
 695         char *cp;
 696
 697         cp = strrchr(fn, '/');
 698         if (cp == NULL)
 699                 return(fn);
 700         return(cp + 1);
 701 }
 702
 703 /*
 704  * Create the makerules for each file
 705  * which is part of the system.
 706  * Devices are processed with the special c2 option -i
 707  * which avoids any problem areas with i/o addressing
 708  * (e.g. for the VAX); assembler files are processed by as.
 709  */
 710 static void
 711 do_rules(FILE *f)
 712 {
 713         char *cp, *np, och;
 714         struct file_list *ftp;
 715         char *special;
 716
 717         for (ftp = ftab; ftp != NULL; ftp = ftp->f_next) {
 718                 if (ftp->f_type == INVISIBLE)
 719                         continue;
 720                 if (ftp->f_warn != NULL)
 721                         printf("WARNING: %s\n", ftp->f_warn);
 722                 cp = (np = ftp->f_fn) + strlen(ftp->f_fn) - 1;
 723                 och = *cp;
 724                 if (ftp->f_flags & NO_IMPLCT_RULE) {
 725                         if (ftp->f_depends)
 726                                 fprintf(f, "%s: %s\n", np, ftp->f_depends);
 727                         else
 728                                 fprintf(f, "%s: \n", np);
 729                 }
 730                 else {
 731                         *cp = '\0';
 732                         if (och == 'o') {
 733                                 fprintf(f, "%so:\n\t-cp $S/%so .\n\n",
 734                                         tail(np), np);
 735                                 continue;
 736                         }
 737                         if (ftp->f_depends)
 738                                 fprintf(f, "%so: $S/%s%c %s\n", tail(np),
 739                                         np, och, ftp->f_depends);
 740                         else
 741                                 fprintf(f, "%so: $S/%s%c\n", tail(np),
 742                                         np, och);
 743                 }
 744                 special = ftp->f_special;
 745                 if (special == NULL) {
 746                         const char *ftype = NULL;
 747                         static char cmd[128];
 748
 749                         switch (ftp->f_type) {
 750
 751                         case NORMAL:
 752                                 ftype = "NORMAL";
 753                                 break;
 754
 755                         case PROFILING:
 756                                 if (!profiling)
 757                                         continue;
 758                                 ftype = "PROFILE";
 759                                 break;
 760
 761                         default:
 762                                 printf("config: don't know rules for %s\n", np);
 763                                 break;
 764                         }
 765                         snprintf(cmd, sizeof(cmd), "${%s_%c%s}%s",
 766                             ftype, toupper(och),
 767                             ftp->f_flags & CONFIGDEP ? "_C" : "",
 768                             ftp->f_flags & NOWERROR ? "" : " ${WERROR}");
 769                         special = cmd;
 770                 }
 771                 *cp = och;
 772                 fprintf(f, "\t%s\n\n", special);
 773         }
 774 }
 775
 776 static void
 777 do_clean(FILE *fp)
 778 {
 779         struct file_list *tp;
 780         int lpos, len;
 781
 782         fputs("CLEAN=", fp);
 783         lpos = 7;
 784         for (tp = ftab; tp != NULL; tp = tp->f_next)
 785                 if (tp->f_clean) {
 786                         len = strlen(tp->f_clean);
 787                         if (len + lpos > 72) {
 788                                 lpos = 8;
 789                                 fputs("\\\n\t", fp);
 790                         }
 791                         fprintf(fp, "%s ", tp->f_clean);
 792                         lpos += len + 1;
 793                 }
 794         if (lpos != 8)
 795                 putc('\n', fp);
 796 }
 797
 798 char *
 799 raisestr(char *str)
 800 {
 801         char *cp = str;
 802
 803         while (*str) {
 804                 if (islower(*str))
 805                         *str = toupper(*str);
 806                 str++;
 807         }
 808         return(cp);
 809 }