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  * 4. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  * @(#)mkmakefile.c     8.1 (Berkeley) 6/6/93
  30  * $FreeBSD: src/usr.sbin/config/mkmakefile.c,v 1.51.2.3 2001/01/23 00:09:32 peter Exp $
  31  */
  32
  33 /*
  34  * Build the makefile for the system, from
  35  * the information in the 'files' files and the
  36  * additional files for the machine being compiled to.
  37  */
  38
  39 #include <ctype.h>
  40 #include <err.h>
  41 #include <stdio.h>
  42 #include <string.h>
  43 #include <sys/param.h>
  44 #include "y.tab.h"
  45 #include "config.h"
  46 #include "configvers.h"
  47
  48 #define next_word(fp, wd)                                               \
  49         {                                                               \
  50                 char *word;                                             \
  51                                                                         \
  52                 word = get_word(fp);                                    \
  53                 if (word == (char *)EOF)                                \
  54                         return;                                         \
  55                 else                                                    \
  56                         wd = word;                                      \
  57         }
  58 #define next_quoted_word(fp, wd)                                        \
  59         {                                                               \
  60                 char *word;                                             \
  61                                                                         \
  62                 word = get_quoted_word(fp);                             \
  63                 if (word == (char *)EOF)                                \
  64                         return;                                         \
  65                 else                                                    \
  66                         wd = word;                                      \
  67         }
  68
  69 static struct file_list *fcur;
  70
  71 static char *tail(char *);
  72 static void do_clean(FILE *);
  73 static void do_rules(FILE *);
  74 static void do_sfiles(FILE *);
  75 static void do_mfiles(FILE *);
  76 static void do_cfiles(FILE *);
  77 static void do_objs(FILE *);
  78 static void do_before_depend(FILE *);
  79 static int opteq(char *, char *);
  80 static void read_files(void);
  81
  82 /*
  83  * Lookup a file, by name.
  84  */
  85 static struct file_list *
  86 fl_lookup(char *file)
  87 {
  88         struct file_list *fp;
  89
  90         for (fp = ftab; fp != NULL; fp = fp->f_next) {
  91                 if (strcmp(fp->f_fn, file) == 0)
  92                         return(fp);
  93         }
  94         return(0);
  95 }
  96
  97 /*
  98  * Lookup a file, by final component name.
  99  */
 100 static struct file_list *
 101 fltail_lookup(char *file)
 102 {
 103         struct file_list *fp;
 104
 105         for (fp = ftab; fp != NULL; fp = fp->f_next) {
 106                 if (strcmp(tail(fp->f_fn), tail(file)) == 0)
 107                         return(fp);
 108         }
 109         return(0);
 110 }
 111
 112 /*
 113  * Make a new file list entry
 114  */
 115 static struct file_list *
 116 new_fent(void)
 117 {
 118         struct file_list *fp;
 119
 120         fp = malloc(sizeof(*fp));
 121         bzero(fp, sizeof(*fp));
 122         if (fcur == NULL)
 123                 fcur = ftab = fp;
 124         else
 125                 fcur->f_next = fp;
 126         fcur = fp;
 127         return(fp);
 128 }
 129
 130 /*
 131  * Build the makefile from the skeleton
 132  */
 133 void
 134 makefile(void)
 135 {
 136         FILE *ifp, *ofp;
 137         char line[BUFSIZ];
 138         struct opt *op;
 139         int versreq;
 140
 141         read_files();
 142         snprintf(line, sizeof(line), "../platform/%s/conf/Makefile",
 143                  platformname);
 144         ifp = fopen(line, "r");
 145         if (ifp == NULL) {
 146                 snprintf(line, sizeof(line), "Makefile.%s", platformname);
 147                 ifp = fopen(line, "r");
 148         }
 149         if (ifp == NULL)
 150                 err(1, "%s", line);
 151         ofp = fopen(path("Makefile.new"), "w");
 152         if (ofp == NULL)
 153                 err(1, "%s", path("Makefile.new"));
 154         fprintf(ofp, "KERN_IDENT=%s\n", raisestr(ident));
 155         fprintf(ofp, "MACHINE_PLATFORM=%s\n", platformname);
 156         fprintf(ofp, "MACHINE=%s\n", machinename);
 157         fprintf(ofp, "MACHINE_ARCH=%s\n", machinearchname);
 158         fprintf(ofp, ".if defined(.PARSEDIR)\n");
 159         fprintf(ofp, ".export MACHINE_PLATFORM\n");
 160         fprintf(ofp, ".export MACHINE\n");
 161         fprintf(ofp, ".export MACHINE_ARCH\n");
 162         fprintf(ofp, ".else\n");
 163         fprintf(ofp, ".makeenv MACHINE_PLATFORM\n");
 164         fprintf(ofp, ".makeenv MACHINE\n");
 165         fprintf(ofp, ".makeenv MACHINE_ARCH\n");
 166         fprintf(ofp, ".endif\n");
 167         fprintf(ofp, "IDENT=");
 168         if (profiling) {
 169                 /* Don't compile kernel profiling code for vkernel */
 170                 if (strncmp(platformname, "vkernel", 6) != 0)
 171                         fprintf(ofp, " -DGPROF");
 172         }
 173
 174         if (cputype == 0) {
 175                 printf("cpu type must be specified\n");
 176                 exit(1);
 177         }
 178         fprintf(ofp, "\n");
 179         for (op = mkopt; op != NULL; op = op->op_next)
 180                 fprintf(ofp, "%s=%s\n", op->op_name, op->op_value);
 181         if (debugging)
 182                 fprintf(ofp, "DEBUG=-g\n");
 183         if (profiling) {
 184                 fprintf(ofp, "PROF=-pg\n");
 185                 fprintf(ofp, "PROFLEVEL=%d\n", profiling);
 186         }
 187         if (*srcdir != '\0')
 188                 fprintf(ofp,"S=%s\n", srcdir);
 189         while (fgets(line, BUFSIZ, ifp) != 0) {
 190                 if (*line != '%') {
 191                         fprintf(ofp, "%s", line);
 192                         continue;
 193                 }
 194                 if (strcmp(line, "%BEFORE_DEPEND\n") == 0)
 195                         do_before_depend(ofp);
 196                 else if (strcmp(line, "%OBJS\n") == 0)
 197                         do_objs(ofp);
 198                 else if (strcmp(line, "%MFILES\n") == 0)
 199                         do_mfiles(ofp);
 200                 else if (strcmp(line, "%CFILES\n") == 0)
 201                         do_cfiles(ofp);
 202                 else if (strcmp(line, "%SFILES\n") == 0)
 203                         do_sfiles(ofp);
 204                 else if (strcmp(line, "%RULES\n") == 0)
 205                         do_rules(ofp);
 206                 else if (strcmp(line, "%CLEAN\n") == 0)
 207                         do_clean(ofp);
 208                 else if (strncmp(line, "%VERSREQ=", sizeof("%VERSREQ=") - 1) == 0) {
 209                         versreq = atoi(line + sizeof("%VERSREQ=") - 1);
 210                         if (versreq != CONFIGVERS) {
 211                                 fprintf(stderr, "ERROR: version of config(8) does not match kernel!\n");
 212                                 fprintf(stderr, "config version = %d, ", CONFIGVERS);
 213                                 fprintf(stderr, "version required = %d\n\n", versreq);
 214                                 fprintf(stderr, "Make sure that /usr/src/usr.sbin/config is in sync\n");
 215                                 fprintf(stderr, "with your /usr/src/sys and install a new config binary\n");
 216                                 fprintf(stderr, "before trying this again.\n\n");
 217                                 fprintf(stderr, "If running the new config fails check your config\n");
 218                                 fprintf(stderr, "file against the GENERIC or LINT config files for\n");
 219                                 fprintf(stderr, "changes in config syntax, or option/device naming\n");
 220                                 fprintf(stderr, "conventions\n\n");
 221                                 exit(1);
 222                         }
 223                 } else
 224                         fprintf(stderr,
 225                             "Unknown %% construct in generic makefile: %s",
 226                             line);
 227         }
 228         fclose(ifp);
 229         fclose(ofp);
 230         moveifchanged(path("Makefile.new"), path("Makefile"));
 231 }
 232
 233 /*
 234  * Read in the information about files used in making the system.
 235  * Store it in the ftab linked list.
 236  */
 237 static void
 238 read_files(void)
 239 {
 240         FILE *fp;
 241         struct file_list *tp, *pf;
 242         struct device *dp;
 243         struct device *save_dp;
 244         struct opt *op;
 245         char *wd, *this, *needs, *special, *depends, *clean, *warning;
 246         char fname[MAXPATHLEN];
 247         int nonoptional;
 248         int nreqs, first = 1, configdep, isdup, std, filetype,
 249             imp_rule, no_obj, before_depend, nowerror, mandatory;
 250
 251         ftab = 0;
 252         save_dp = NULL;
 253         if (ident == NULL) {
 254                 printf("no ident line specified\n");
 255                 exit(1);
 256         }
 257         snprintf(fname, sizeof(fname), "../conf/files");
 258 openit:
 259         fp = fopen(fname, "r");
 260         if (fp == NULL)
 261                 err(1, "%s", fname);
 262 next:
 263         /*
 264          * filename    [ standard | mandatory | optional ] [ config-dependent ]
 265          *      [ dev* | profiling-routine ] [ no-obj ]
 266          *      [ compile-with "compile rule" [no-implicit-rule] ]
 267          *      [ dependency "dependency-list"] [ before-depend ]
 268          *      [ clean "file-list"] [ warning "text warning" ]
 269          */
 270         wd = get_word(fp);
 271         if (wd == (char *)EOF) {
 272                 fclose(fp);
 273                 if (first == 1) {
 274                         first++;
 275                         snprintf(fname, sizeof(fname),
 276                             "../platform/%s/conf/files",
 277                             platformname);
 278                         fp = fopen(fname, "r");
 279                         if (fp != NULL)
 280                                 goto next;
 281                         snprintf(fname, sizeof(fname),
 282                             "files.%s", platformname);
 283                         goto openit;
 284                 }
 285                 if (first == 2) {
 286                         first++;
 287                         snprintf(fname, sizeof(fname),
 288                             "files.%s", raisestr(ident));
 289                         fp = fopen(fname, "r");
 290                         if (fp != NULL)
 291                                 goto next;
 292                 }
 293                 return;
 294         }
 295         if (wd == NULL)
 296                 goto next;
 297         if (wd[0] == '#')
 298         {
 299                 while (((wd = get_word(fp)) != (char *)EOF) && wd)
 300                         ;
 301                 goto next;
 302         }
 303         this = strdup(wd);
 304         next_word(fp, wd);
 305         if (wd == NULL) {
 306                 printf("%s: No type for %s.\n",
 307                     fname, this);
 308                 exit(1);
 309         }
 310         if ((pf = fl_lookup(this)) && (pf->f_type != INVISIBLE || pf->f_flags))
 311                 isdup = 1;
 312         else
 313                 isdup = 0;
 314         tp = NULL;
 315         if (first == 3 && pf == NULL && (tp = fltail_lookup(this)) != NULL) {
 316                 if (tp->f_type != INVISIBLE || tp->f_flags)
 317                         printf("%s: Local file %s overrides %s.\n",
 318                             fname, this, tp->f_fn);
 319                 else
 320                         printf("%s: Local file %s could override %s"
 321                             " with a different kernel configuration.\n",
 322                             fname, this, tp->f_fn);
 323         }
 324         nreqs = 0;
 325         special = NULL;
 326         depends = NULL;
 327         clean = NULL;
 328         warning = NULL;
 329         configdep = 0;
 330         needs = NULL;
 331         std = mandatory = nonoptional = 0;
 332         imp_rule = 0;
 333         no_obj = 0;
 334         before_depend = 0;
 335         nowerror = 0;
 336         filetype = NORMAL;
 337         if (strcmp(wd, "standard") == 0) {
 338                 std = 1;
 339         } else if (strcmp(wd, "mandatory") == 0) {
 340                 /*
 341                  * If an entry is marked "mandatory", config will abort if
 342                  * it's not called by a configuration line in the config
 343                  * file.  Apart from this, the device is handled like one
 344                  * marked "optional".
 345                  */
 346                 mandatory = 1;
 347         } else if (strcmp(wd, "nonoptional") == 0) {
 348                 nonoptional = 1;
 349         } else if (strcmp(wd, "optional") == 0) {
 350                 /* don't need to do anything */
 351         } else {
 352                 printf("%s: %s must be optional, mandatory or standard\n",
 353                        fname, this);
 354                 printf("Alternatively, your version of config(8) may be out of sync with your\nkernel source.\n");
 355                 exit(1);
 356         }
 357 nextparam:
 358         next_word(fp, wd);
 359         if (wd == NULL)
 360                 goto doneparam;
 361         if (strcmp(wd, "config-dependent") == 0) {
 362                 configdep++;
 363                 goto nextparam;
 364         }
 365         if (strcmp(wd, "no-obj") == 0) {
 366                 no_obj++;
 367                 goto nextparam;
 368         }
 369         if (strcmp(wd, "no-implicit-rule") == 0) {
 370                 if (special == NULL) {
 371                         printf("%s: alternate rule required when "
 372                                "\"no-implicit-rule\" is specified.\n",
 373                                fname);
 374                 }
 375                 imp_rule++;
 376                 goto nextparam;
 377         }
 378         if (strcmp(wd, "before-depend") == 0) {
 379                 before_depend++;
 380                 goto nextparam;
 381         }
 382         if (strcmp(wd, "dependency") == 0) {
 383                 next_quoted_word(fp, wd);
 384                 if (wd == NULL) {
 385                         printf("%s: %s missing compile command string.\n",
 386                                fname, this);
 387                         exit(1);
 388                 }
 389                 depends = strdup(wd);
 390                 goto nextparam;
 391         }
 392         if (strcmp(wd, "clean") == 0) {
 393                 next_quoted_word(fp, wd);
 394                 if (wd == NULL) {
 395                         printf("%s: %s missing clean file list.\n",
 396                                fname, this);
 397                         exit(1);
 398                 }
 399                 clean = strdup(wd);
 400                 goto nextparam;
 401         }
 402         if (strcmp(wd, "compile-with") == 0) {
 403                 next_quoted_word(fp, wd);
 404                 if (wd == NULL) {
 405                         printf("%s: %s missing compile command string.\n",
 406                                fname, this);
 407                         exit(1);
 408                 }
 409                 special = strdup(wd);
 410                 goto nextparam;
 411         }
 412         if (strcmp(wd, "nowerror") == 0) {
 413                 nowerror++;
 414                 goto nextparam;
 415         }
 416         if (strcmp(wd, "warning") == 0) {
 417                 next_quoted_word(fp, wd);
 418                 if (wd == NULL) {
 419                         printf("%s: %s missing warning text string.\n",
 420                                 fname, this);
 421                         exit(1);
 422                 }
 423                 warning = strdup(wd);
 424                 goto nextparam;
 425         }
 426         nreqs++;
 427         if (strcmp(wd, "local") == 0) {
 428                 filetype = LOCAL;
 429                 goto nextparam;
 430         }
 431         if (strcmp(wd, "no-depend") == 0) {
 432                 filetype = NODEPEND;
 433                 goto nextparam;
 434         }
 435         if (strcmp(wd, "device-driver") == 0) {
 436                 printf("%s: `device-driver' flag obsolete.\n", fname);
 437                 exit(1);
 438         }
 439         if (strcmp(wd, "profiling-routine") == 0) {
 440                 filetype = PROFILING;
 441                 goto nextparam;
 442         }
 443         if (needs == NULL && nreqs == 1)
 444                 needs = strdup(wd);
 445         if (isdup)
 446                 goto invis;
 447         for (dp = dtab; dp != NULL; save_dp = dp, dp = dp->d_next)
 448                 if (strcmp(dp->d_name, wd) == 0) {
 449                         if (std && dp->d_type == PSEUDO_DEVICE &&
 450                             dp->d_count <= 0)
 451                                 dp->d_count = 1;
 452                         goto nextparam;
 453                 }
 454         if (mandatory) {
 455                 printf("%s: mandatory device \"%s\" not found\n",
 456                        fname, wd);
 457                 exit(1);
 458         }
 459         if (std) {
 460                 dp = malloc(sizeof(*dp));
 461                 bzero(dp, sizeof(*dp));
 462                 init_dev(dp);
 463                 dp->d_name = strdup(wd);
 464                 dp->d_type = PSEUDO_DEVICE;
 465                 dp->d_count = 1;
 466                 save_dp->d_next = dp;
 467                 goto nextparam;
 468         }
 469         for (op = opt; op != NULL; op = op->op_next) {
 470                 if (op->op_value == 0 && opteq(op->op_name, wd)) {
 471                         if (nreqs == 1) {
 472                                 free(needs);
 473                                 needs = NULL;
 474                         }
 475                         goto nextparam;
 476                 }
 477         }
 478         if (nonoptional) {
 479                 printf("%s: the option \"%s\" MUST be specified\n",
 480                         fname, wd);
 481                 exit(1);
 482         }
 483 invis:
 484         while ((wd = get_word(fp)) != NULL)
 485                 ;
 486         if (tp == NULL)
 487                 tp = new_fent();
 488         tp->f_fn = this;
 489         tp->f_type = INVISIBLE;
 490         tp->f_needs = needs;
 491         tp->f_flags = isdup;
 492         tp->f_special = special;
 493         tp->f_depends = depends;
 494         tp->f_clean = clean;
 495         tp->f_warn = warning;
 496         goto next;
 497
 498 doneparam:
 499         if (std == 0 && nreqs == 0) {
 500                 printf("%s: what is %s optional on?\n",
 501                     fname, this);
 502                 exit(1);
 503         }
 504
 505         if (wd != NULL) {
 506                 printf("%s: syntax error describing %s\n",
 507                     fname, this);
 508                 exit(1);
 509         }
 510         if (filetype == PROFILING && profiling == 0)
 511                 goto next;
 512         if (tp == NULL)
 513                 tp = new_fent();
 514         tp->f_fn = this;
 515         tp->f_type = filetype;
 516         tp->f_flags = 0;
 517         if (configdep)
 518                 tp->f_flags |= CONFIGDEP;
 519         if (imp_rule)
 520                 tp->f_flags |= NO_IMPLCT_RULE;
 521         if (no_obj)
 522                 tp->f_flags |= NO_OBJ;
 523         if (before_depend)
 524                 tp->f_flags |= BEFORE_DEPEND;
 525         if (nowerror)
 526                 tp->f_flags |= NOWERROR;
 527         if (imp_rule)
 528                 tp->f_flags |= NO_IMPLCT_RULE;
 529         if (no_obj)
 530                 tp->f_flags |= NO_OBJ;
 531         tp->f_needs = needs;
 532         tp->f_special = special;
 533         tp->f_depends = depends;
 534         tp->f_clean = clean;
 535         tp->f_warn = warning;
 536         if (pf && pf->f_type == INVISIBLE)
 537                 pf->f_flags = 1;                /* mark as duplicate */
 538         goto next;
 539 }
 540
 541 static int
 542 opteq(char *cp, char *dp)
 543 {
 544         char c, d;
 545
 546         for (;; cp++, dp++) {
 547                 if (*cp != *dp) {
 548                         c = isupper(*cp) ? tolower(*cp) : *cp;
 549                         d = isupper(*dp) ? tolower(*dp) : *dp;
 550                         if (c != d)
 551                                 return(0);
 552                 }
 553                 if (*cp == 0)
 554                         return(1);
 555         }
 556 }
 557
 558 static void
 559 do_before_depend(FILE *fp)
 560 {
 561         struct file_list *tp;
 562         int lpos, len;
 563
 564         fputs("BEFORE_DEPEND=", fp);
 565         lpos = 15;
 566         for (tp = ftab; tp != NULL; tp = tp->f_next)
 567                 if (tp->f_flags & BEFORE_DEPEND) {
 568                         len = strlen(tp->f_fn);
 569                         if ((len = 3 + len) + lpos > 72) {
 570                                 lpos = 8;
 571                                 fputs("\\\n\t", fp);
 572                         }
 573                         if (tp->f_flags & NO_IMPLCT_RULE)
 574                                 fprintf(fp, "%s ", tp->f_fn);
 575                         else
 576                                 fprintf(fp, "$S/%s ", tp->f_fn);
 577                         lpos += len + 1;
 578                 }
 579         if (lpos != 8)
 580                 putc('\n', fp);
 581 }
 582
 583 static void
 584 do_objs(FILE *fp)
 585 {
 586         struct file_list *tp;
 587         int lpos, len;
 588         char *cp, och, *sp;
 589
 590         fprintf(fp, "OBJS=");
 591         lpos = 6;
 592         for (tp = ftab; tp != NULL; tp = tp->f_next) {
 593                 if (tp->f_type == INVISIBLE || tp->f_flags & NO_OBJ)
 594                         continue;
 595                 sp = tail(tp->f_fn);
 596                 cp = sp + (len = strlen(sp)) - 1;
 597                 och = *cp;
 598                 *cp = 'o';
 599                 if (len + lpos > 72) {
 600                         lpos = 8;
 601                         fprintf(fp, "\\\n\t");
 602                 }
 603                 fprintf(fp, "%s ", sp);
 604                 lpos += len + 1;
 605                 *cp = och;
 606         }
 607         if (lpos != 8)
 608                 putc('\n', fp);
 609 }
 610
 611 static void
 612 do_cfiles(FILE *fp)
 613 {
 614         struct file_list *tp;
 615         int lpos, len;
 616
 617         fputs("CFILES=", fp);
 618         lpos = 8;
 619         for (tp = ftab; tp != NULL; tp = tp->f_next)
 620                 if (tp->f_type != INVISIBLE && tp->f_type != NODEPEND) {
 621                         len = strlen(tp->f_fn);
 622                         if (tp->f_fn[len - 1] != 'c')
 623                                 continue;
 624                         if ((len = 3 + len) + lpos > 72) {
 625                                 lpos = 8;
 626                                 fputs("\\\n\t", fp);
 627                         }
 628                         if (tp->f_type != LOCAL)
 629                                 fprintf(fp, "$S/%s ", tp->f_fn);
 630                         else
 631                                 fprintf(fp, "%s ", tp->f_fn);
 632
 633                         lpos += len + 1;
 634                 }
 635         if (lpos != 8)
 636                 putc('\n', fp);
 637 }
 638
 639 static void
 640 do_mfiles(FILE *fp)
 641 {
 642         struct file_list *tp;
 643         int lpos, len;
 644
 645         fputs("MFILES=", fp);
 646         lpos = 8;
 647         for (tp = ftab; tp != NULL; tp = tp->f_next)
 648                 if (tp->f_type != INVISIBLE) {
 649                         len = strlen(tp->f_fn);
 650                         if (tp->f_fn[len - 1] != 'm' || tp->f_fn[len - 2] != '.')
 651                                 continue;
 652                         if ((len = 3 + len) + lpos > 72) {
 653                                 lpos = 8;
 654                                 fputs("\\\n\t", fp);
 655                         }
 656                         fprintf(fp, "$S/%s ", tp->f_fn);
 657                         lpos += len + 1;
 658                 }
 659         if (lpos != 8)
 660                 putc('\n', fp);
 661 }
 662
 663 static void
 664 do_sfiles(FILE *fp)
 665 {
 666         struct file_list *tp;
 667         int lpos, len;
 668
 669         fputs("SFILES=", fp);
 670         lpos = 8;
 671         for (tp = ftab; tp != NULL; tp = tp->f_next)
 672                 if (tp->f_type != INVISIBLE) {
 673                         len = strlen(tp->f_fn);
 674                         if (tp->f_fn[len - 1] != 'S' && tp->f_fn[len - 1] != 's')
 675                                 continue;
 676                         if ((len = 3 + len) + lpos > 72) {
 677                                 lpos = 8;
 678                                 fputs("\\\n\t", fp);
 679                         }
 680                         fprintf(fp, "$S/%s ", tp->f_fn);
 681                         lpos += len + 1;
 682                 }
 683         if (lpos != 8)
 684                 putc('\n', fp);
 685 }
 686
 687
 688 static char *
 689 tail(char *fn)
 690 {
 691         char *cp;
 692
 693         cp = strrchr(fn, '/');
 694         if (cp == NULL)
 695                 return(fn);
 696         return(cp + 1);
 697 }
 698
 699 /*
 700  * Create the makerules for each file
 701  * which is part of the system.
 702  * Devices are processed with the special c2 option -i
 703  * which avoids any problem areas with i/o addressing
 704  * (e.g. for the VAX); assembler files are processed by as.
 705  */
 706 static void
 707 do_rules(FILE *f)
 708 {
 709         char *cp, *np, och;
 710         struct file_list *ftp;
 711         char *special;
 712
 713         for (ftp = ftab; ftp != NULL; ftp = ftp->f_next) {
 714                 if (ftp->f_type == INVISIBLE)
 715                         continue;
 716                 if (ftp->f_warn != NULL)
 717                         printf("WARNING: %s\n", ftp->f_warn);
 718                 cp = (np = ftp->f_fn) + strlen(ftp->f_fn) - 1;
 719                 och = *cp;
 720                 if (ftp->f_flags & NO_IMPLCT_RULE) {
 721                         if (ftp->f_depends)
 722                                 fprintf(f, "%s: %s\n", np, ftp->f_depends);
 723                         else
 724                                 fprintf(f, "%s: \n", np);
 725                 }
 726                 else {
 727                         *cp = '\0';
 728                         if (och == 'o') {
 729                                 fprintf(f, "%so:\n\t-cp $S/%so .\n\n",
 730                                         tail(np), np);
 731                                 continue;
 732                         }
 733                         if (ftp->f_depends)
 734                                 fprintf(f, "%so: $S/%s%c %s\n", tail(np),
 735                                         np, och, ftp->f_depends);
 736                         else
 737                                 fprintf(f, "%so: $S/%s%c\n", tail(np),
 738                                         np, och);
 739                 }
 740                 special = ftp->f_special;
 741                 if (special == NULL) {
 742                         const char *ftype = NULL;
 743                         static char cmd[128];
 744
 745                         switch (ftp->f_type) {
 746
 747                         case NORMAL:
 748                                 ftype = "NORMAL";
 749                                 break;
 750
 751                         case PROFILING:
 752                                 if (!profiling)
 753                                         continue;
 754                                 ftype = "PROFILE";
 755                                 break;
 756
 757                         default:
 758                                 printf("config: don't know rules for %s\n", np);
 759                                 break;
 760                         }
 761                         snprintf(cmd, sizeof(cmd), "${%s_%c%s}%s",
 762                             ftype, toupper(och),
 763                             ftp->f_flags & CONFIGDEP ? "_C" : "",
 764                             ftp->f_flags & NOWERROR ? "" : " ${WERROR}");
 765                         special = cmd;
 766                 }
 767                 *cp = och;
 768                 fprintf(f, "\t%s\n\n", special);
 769         }
 770 }
 771
 772 static void
 773 do_clean(FILE *fp)
 774 {
 775         struct file_list *tp;
 776         int lpos, len;
 777
 778         fputs("CLEAN=", fp);
 779         lpos = 7;
 780         for (tp = ftab; tp != NULL; tp = tp->f_next)
 781                 if (tp->f_clean) {
 782                         len = strlen(tp->f_clean);
 783                         if (len + lpos > 72) {
 784                                 lpos = 8;
 785                                 fputs("\\\n\t", fp);
 786                         }
 787                         fprintf(fp, "%s ", tp->f_clean);
 788                         lpos += len + 1;
 789                 }
 790         if (lpos != 8)
 791                 putc('\n', fp);
 792 }
 793
 794 char *
 795 raisestr(char *str)
 796 {
 797         char *cp = str;
 798
 799         while (*str) {
 800                 if (islower(*str))
 801                         *str = toupper(*str);
 802                 str++;
 803         }
 804         return(cp);
 805 }