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 1.18 2007/01/19 07:23:43 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), "../platform/%s/conf/Makefile",
 148                  platformname);
 149         ifp = fopen(line, "r");
 150         if (ifp == NULL) {
 151                 snprintf(line, sizeof(line), "Makefile.%s", platformname);
 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_PLATFORM=%s\n", platformname);
 161         fprintf(ofp, "MACHINE=%s\n", machinename);
 162         fprintf(ofp, "MACHINE_ARCH=%s\n", machinearchname);
 163         fprintf(ofp, ".makeenv MACHINE_PLATFORM\n");
 164         fprintf(ofp, ".makeenv MACHINE\n");
 165         fprintf(ofp, ".makeenv MACHINE_ARCH\n");
 166         fprintf(ofp, "IDENT=");
 167         if (profiling)
 168                 fprintf(ofp, " -DGPROF");
 169
 170         if (cputype == 0) {
 171                 printf("cpu type must be specified\n");
 172                 exit(1);
 173         }
 174         fprintf(ofp, "\n");
 175         for (op = mkopt; op != NULL; op = op->op_next)
 176                 fprintf(ofp, "%s=%s\n", op->op_name, op->op_value);
 177         if (debugging)
 178                 fprintf(ofp, "DEBUG=-g\n");
 179         if (profiling) {
 180                 fprintf(ofp, "PROF=-pg\n");
 181                 fprintf(ofp, "PROFLEVEL=%d\n", profiling);
 182         }
 183         if (*srcdir != '\0')
 184                 fprintf(ofp,"S=%s\n", srcdir);
 185         while (fgets(line, BUFSIZ, ifp) != 0) {
 186                 if (*line != '%') {
 187                         fprintf(ofp, "%s", line);
 188                         continue;
 189                 }
 190                 if (strcmp(line, "%BEFORE_DEPEND\n") == 0)
 191                         do_before_depend(ofp);
 192                 else if (strcmp(line, "%OBJS\n") == 0)
 193                         do_objs(ofp);
 194                 else if (strcmp(line, "%MFILES\n") == 0)
 195                         do_mfiles(ofp);
 196                 else if (strcmp(line, "%CFILES\n") == 0)
 197                         do_cfiles(ofp);
 198                 else if (strcmp(line, "%SFILES\n") == 0)
 199                         do_sfiles(ofp);
 200                 else if (strcmp(line, "%RULES\n") == 0)
 201                         do_rules(ofp);
 202                 else if (strcmp(line, "%CLEAN\n") == 0)
 203                         do_clean(ofp);
 204                 else if (strncmp(line, "%VERSREQ=", sizeof("%VERSREQ=") - 1) == 0) {
 205                         versreq = atoi(line + sizeof("%VERSREQ=") - 1);
 206                         if (versreq != CONFIGVERS) {
 207                                 fprintf(stderr, "ERROR: version of config(8) does not match kernel!\n");
 208                                 fprintf(stderr, "config version = %d, ", CONFIGVERS);
 209                                 fprintf(stderr, "version required = %d\n\n", versreq);
 210                                 fprintf(stderr, "Make sure that /usr/src/usr.sbin/config is in sync\n");
 211                                 fprintf(stderr, "with your /usr/src/sys and install a new config binary\n");
 212                                 fprintf(stderr, "before trying this again.\n\n");
 213                                 fprintf(stderr, "If running the new config fails check your config\n");
 214                                 fprintf(stderr, "file against the GENERIC or LINT config files for\n");
 215                                 fprintf(stderr, "changes in config syntax, or option/device naming\n");
 216                                 fprintf(stderr, "conventions\n\n");
 217                                 exit(1);
 218                         }
 219                 } else
 220                         fprintf(stderr,
 221                             "Unknown %% construct in generic makefile: %s",
 222                             line);
 223         }
 224         fclose(ifp);
 225         fclose(ofp);
 226         moveifchanged(path("Makefile.new"), path("Makefile"));
 227 }
 228
 229 /*
 230  * Read in the information about files used in making the system.
 231  * Store it in the ftab linked list.
 232  */
 233 static void
 234 read_files(void)
 235 {
 236         FILE *fp;
 237         struct file_list *tp, *pf;
 238         struct device *dp;
 239         struct device *save_dp;
 240         struct opt *op;
 241         char *wd, *this, *needs, *special, *depends, *clean, *warning;
 242         char fname[MAXPATHLEN];
 243         int nonoptional;
 244         int nreqs, first = 1, configdep, isdup, std, filetype,
 245             imp_rule, no_obj, before_depend, mandatory;
 246
 247         ftab = 0;
 248         save_dp = NULL;
 249         if (ident == NULL) {
 250                 printf("no ident line specified\n");
 251                 exit(1);
 252         }
 253         snprintf(fname, sizeof(fname), "../conf/files");
 254 openit:
 255         fp = fopen(fname, "r");
 256         if (fp == NULL)
 257                 err(1, "%s", fname);
 258 next:
 259         /*
 260          * filename    [ standard | mandatory | optional ] [ config-dependent ]
 261          *      [ dev* | profiling-routine ] [ no-obj ]
 262          *      [ compile-with "compile rule" [no-implicit-rule] ]
 263          *      [ dependency "dependency-list"] [ before-depend ]
 264          *      [ clean "file-list"] [ warning "text warning" ]
 265          */
 266         wd = get_word(fp);
 267         if (wd == (char *)EOF) {
 268                 fclose(fp);
 269                 if (first == 1) {
 270                         first++;
 271                         snprintf(fname, sizeof(fname),
 272                             "../platform/%s/conf/files",
 273                             platformname);
 274                         fp = fopen(fname, "r");
 275                         if (fp != NULL)
 276                                 goto next;
 277                         snprintf(fname, sizeof(fname),
 278                             "files.%s", platformname);
 279                         goto openit;
 280                 }
 281                 if (first == 2) {
 282                         first++;
 283                         snprintf(fname, sizeof(fname),
 284                             "files.%s", raisestr(ident));
 285                         fp = fopen(fname, "r");
 286                         if (fp != NULL)
 287                                 goto next;
 288                 }
 289                 return;
 290         }
 291         if (wd == 0)
 292                 goto next;
 293         if (wd[0] == '#')
 294         {
 295                 while (((wd = get_word(fp)) != (char *)EOF) && wd)
 296                         ;
 297                 goto next;
 298         }
 299         this = strdup(wd);
 300         next_word(fp, wd);
 301         if (wd == 0) {
 302                 printf("%s: No type for %s.\n",
 303                     fname, this);
 304                 exit(1);
 305         }
 306         if ((pf = fl_lookup(this)) && (pf->f_type != INVISIBLE || pf->f_flags))
 307                 isdup = 1;
 308         else
 309                 isdup = 0;
 310         tp = 0;
 311         if (first == 3 && pf == NULL && (tp = fltail_lookup(this)) != NULL) {
 312                 if (tp->f_type != INVISIBLE || tp->f_flags)
 313                         printf("%s: Local file %s overrides %s.\n",
 314                             fname, this, tp->f_fn);
 315                 else
 316                         printf("%s: Local file %s could override %s"
 317                             " with a different kernel configuration.\n",
 318                             fname, this, tp->f_fn);
 319         }
 320         nreqs = 0;
 321         special = NULL;
 322         depends = NULL;
 323         clean = NULL;
 324         warning = NULL;
 325         configdep = 0;
 326         needs = NULL;
 327         std = mandatory = nonoptional = 0;
 328         imp_rule = 0;
 329         no_obj = 0;
 330         before_depend = 0;
 331         filetype = NORMAL;
 332         if (strcmp(wd, "standard") == 0) {
 333                 std = 1;
 334         } else if (strcmp(wd, "mandatory") == 0) {
 335                 /*
 336                  * If an entry is marked "mandatory", config will abort if
 337                  * it's not called by a configuration line in the config
 338                  * file.  Apart from this, the device is handled like one
 339                  * marked "optional".
 340                  */
 341                 mandatory = 1;
 342         } else if (strcmp(wd, "nonoptional") == 0) {
 343                 nonoptional = 1;
 344         } else if (strcmp(wd, "optional") == 0) {
 345                 /* don't need to do anything */
 346         } else {
 347                 printf("%s: %s must be optional, mandatory or standard\n",
 348                        fname, this);
 349                 printf("Alternatively, your version of config(8) may be out of sync with your\nkernel source.\n");
 350                 exit(1);
 351         }
 352 nextparam:
 353         next_word(fp, wd);
 354         if (wd == NULL)
 355                 goto doneparam;
 356         if (strcmp(wd, "config-dependent") == 0) {
 357                 configdep++;
 358                 goto nextparam;
 359         }
 360         if (strcmp(wd, "no-obj") == 0) {
 361                 no_obj++;
 362                 goto nextparam;
 363         }
 364         if (strcmp(wd, "no-implicit-rule") == 0) {
 365                 if (special == NULL) {
 366                         printf("%s: alternate rule required when "
 367                                "\"no-implicit-rule\" is specified.\n",
 368                                fname);
 369                 }
 370                 imp_rule++;
 371                 goto nextparam;
 372         }
 373         if (strcmp(wd, "before-depend") == 0) {
 374                 before_depend++;
 375                 goto nextparam;
 376         }
 377         if (strcmp(wd, "dependency") == 0) {
 378                 next_quoted_word(fp, wd);
 379                 if (wd == NULL) {
 380                         printf("%s: %s missing compile command string.\n",
 381                                fname, this);
 382                         exit(1);
 383                 }
 384                 depends = strdup(wd);
 385                 goto nextparam;
 386         }
 387         if (strcmp(wd, "clean") == 0) {
 388                 next_quoted_word(fp, wd);
 389                 if (wd == NULL) {
 390                         printf("%s: %s missing clean file list.\n",
 391                                fname, this);
 392                         exit(1);
 393                 }
 394                 clean = strdup(wd);
 395                 goto nextparam;
 396         }
 397         if (strcmp(wd, "compile-with") == 0) {
 398                 next_quoted_word(fp, wd);
 399                 if (wd == NULL) {
 400                         printf("%s: %s missing compile command string.\n",
 401                                fname, this);
 402                         exit(1);
 403                 }
 404                 special = strdup(wd);
 405                 goto nextparam;
 406         }
 407         if (strcmp(wd, "warning") == 0) {
 408                 next_quoted_word(fp, wd);
 409                 if (wd == NULL) {
 410                         printf("%s: %s missing warning text string.\n",
 411                                 fname, this);
 412                         exit(1);
 413                 }
 414                 warning = strdup(wd);
 415                 goto nextparam;
 416         }
 417         nreqs++;
 418         if (strcmp(wd, "local") == 0) {
 419                 filetype = LOCAL;
 420                 goto nextparam;
 421         }
 422         if (strcmp(wd, "no-depend") == 0) {
 423                 filetype = NODEPEND;
 424                 goto nextparam;
 425         }
 426         if (strcmp(wd, "device-driver") == 0) {
 427                 printf("%s: `device-driver' flag obsolete.\n", fname);
 428                 exit(1);
 429         }
 430         if (strcmp(wd, "profiling-routine") == 0) {
 431                 filetype = PROFILING;
 432                 goto nextparam;
 433         }
 434         if (needs == 0 && nreqs == 1)
 435                 needs = strdup(wd);
 436         if (isdup)
 437                 goto invis;
 438         for (dp = dtab; dp != NULL; save_dp = dp, dp = dp->d_next)
 439                 if (strcmp(dp->d_name, wd) == 0) {
 440                         if (std && dp->d_type == PSEUDO_DEVICE &&
 441                             dp->d_count <= 0)
 442                                 dp->d_count = 1;
 443                         goto nextparam;
 444                 }
 445         if (mandatory) {
 446                 printf("%s: mandatory device \"%s\" not found\n",
 447                        fname, wd);
 448                 exit(1);
 449         }
 450         if (std) {
 451                 dp = malloc(sizeof(*dp));
 452                 bzero(dp, sizeof(*dp));
 453                 init_dev(dp);
 454                 dp->d_name = strdup(wd);
 455                 dp->d_type = PSEUDO_DEVICE;
 456                 dp->d_count = 1;
 457                 save_dp->d_next = dp;
 458                 goto nextparam;
 459         }
 460         for (op = opt; op != NULL; op = op->op_next) {
 461                 if (op->op_value == 0 && opteq(op->op_name, wd)) {
 462                         if (nreqs == 1) {
 463                                 free(needs);
 464                                 needs = NULL;
 465                         }
 466                         goto nextparam;
 467                 }
 468         }
 469         if (nonoptional) {
 470                 printf("%s: the option \"%s\" MUST be specified\n",
 471                         fname, wd);
 472                 exit(1);
 473         }
 474 invis:
 475         while ((wd = get_word(fp)) != 0)
 476                 ;
 477         if (tp == NULL)
 478                 tp = new_fent();
 479         tp->f_fn = this;
 480         tp->f_type = INVISIBLE;
 481         tp->f_needs = needs;
 482         tp->f_flags = isdup;
 483         tp->f_special = special;
 484         tp->f_depends = depends;
 485         tp->f_clean = clean;
 486         tp->f_warn = warning;
 487         goto next;
 488
 489 doneparam:
 490         if (std == 0 && nreqs == 0) {
 491                 printf("%s: what is %s optional on?\n",
 492                     fname, this);
 493                 exit(1);
 494         }
 495
 496         if (wd != NULL) {
 497                 printf("%s: syntax error describing %s\n",
 498                     fname, this);
 499                 exit(1);
 500         }
 501         if (filetype == PROFILING && profiling == 0)
 502                 goto next;
 503         if (tp == NULL)
 504                 tp = new_fent();
 505         tp->f_fn = this;
 506         tp->f_type = filetype;
 507         tp->f_flags = 0;
 508         if (configdep)
 509                 tp->f_flags |= CONFIGDEP;
 510         if (imp_rule)
 511                 tp->f_flags |= NO_IMPLCT_RULE;
 512         if (no_obj)
 513                 tp->f_flags |= NO_OBJ;
 514         if (before_depend)
 515                 tp->f_flags |= BEFORE_DEPEND;
 516         if (imp_rule)
 517                 tp->f_flags |= NO_IMPLCT_RULE;
 518         if (no_obj)
 519                 tp->f_flags |= NO_OBJ;
 520         tp->f_needs = needs;
 521         tp->f_special = special;
 522         tp->f_depends = depends;
 523         tp->f_clean = clean;
 524         tp->f_warn = warning;
 525         if (pf && pf->f_type == INVISIBLE)
 526                 pf->f_flags = 1;                /* mark as duplicate */
 527         goto next;
 528 }
 529
 530 static int
 531 opteq(char *cp, char *dp)
 532 {
 533         char c, d;
 534
 535         for (;; cp++, dp++) {
 536                 if (*cp != *dp) {
 537                         c = isupper(*cp) ? tolower(*cp) : *cp;
 538                         d = isupper(*dp) ? tolower(*dp) : *dp;
 539                         if (c != d)
 540                                 return(0);
 541                 }
 542                 if (*cp == 0)
 543                         return(1);
 544         }
 545 }
 546
 547 static void
 548 do_before_depend(FILE *fp)
 549 {
 550         struct file_list *tp;
 551         int lpos, len;
 552
 553         fputs("BEFORE_DEPEND=", fp);
 554         lpos = 15;
 555         for (tp = ftab; tp != NULL; tp = tp->f_next)
 556                 if (tp->f_flags & BEFORE_DEPEND) {
 557                         len = strlen(tp->f_fn);
 558                         if ((len = 3 + len) + lpos > 72) {
 559                                 lpos = 8;
 560                                 fputs("\\\n\t", fp);
 561                         }
 562                         if (tp->f_flags & NO_IMPLCT_RULE)
 563                                 fprintf(fp, "%s ", tp->f_fn);
 564                         else
 565                                 fprintf(fp, "$S/%s ", tp->f_fn);
 566                         lpos += len + 1;
 567                 }
 568         if (lpos != 8)
 569                 putc('\n', fp);
 570 }
 571
 572 static void
 573 do_objs(FILE *fp)
 574 {
 575         struct file_list *tp;
 576         int lpos, len;
 577         char *cp, och, *sp;
 578
 579         fprintf(fp, "OBJS=");
 580         lpos = 6;
 581         for (tp = ftab; tp != NULL; tp = tp->f_next) {
 582                 if (tp->f_type == INVISIBLE || tp->f_flags & NO_OBJ)
 583                         continue;
 584                 sp = tail(tp->f_fn);
 585                 cp = sp + (len = strlen(sp)) - 1;
 586                 och = *cp;
 587                 *cp = 'o';
 588                 if (len + lpos > 72) {
 589                         lpos = 8;
 590                         fprintf(fp, "\\\n\t");
 591                 }
 592                 fprintf(fp, "%s ", sp);
 593                 lpos += len + 1;
 594                 *cp = och;
 595         }
 596         if (lpos != 8)
 597                 putc('\n', fp);
 598 }
 599
 600 static void
 601 do_cfiles(FILE *fp)
 602 {
 603         struct file_list *tp;
 604         int lpos, len;
 605
 606         fputs("CFILES=", fp);
 607         lpos = 8;
 608         for (tp = ftab; tp != NULL; tp = tp->f_next)
 609                 if (tp->f_type != INVISIBLE && tp->f_type != NODEPEND) {
 610                         len = strlen(tp->f_fn);
 611                         if (tp->f_fn[len - 1] != 'c')
 612                                 continue;
 613                         if ((len = 3 + len) + lpos > 72) {
 614                                 lpos = 8;
 615                                 fputs("\\\n\t", fp);
 616                         }
 617                         if (tp->f_type != LOCAL)
 618                                 fprintf(fp, "$S/%s ", tp->f_fn);
 619                         else
 620                                 fprintf(fp, "%s ", tp->f_fn);
 621
 622                         lpos += len + 1;
 623                 }
 624         if (lpos != 8)
 625                 putc('\n', fp);
 626 }
 627
 628 static void
 629 do_mfiles(FILE *fp)
 630 {
 631         struct file_list *tp;
 632         int lpos, len;
 633
 634         fputs("MFILES=", fp);
 635         lpos = 8;
 636         for (tp = ftab; tp != NULL; tp = tp->f_next)
 637                 if (tp->f_type != INVISIBLE) {
 638                         len = strlen(tp->f_fn);
 639                         if (tp->f_fn[len - 1] != 'm' || tp->f_fn[len - 2] != '.')
 640                                 continue;
 641                         if ((len = 3 + len) + lpos > 72) {
 642                                 lpos = 8;
 643                                 fputs("\\\n\t", fp);
 644                         }
 645                         fprintf(fp, "$S/%s ", tp->f_fn);
 646                         lpos += len + 1;
 647                 }
 648         if (lpos != 8)
 649                 putc('\n', fp);
 650 }
 651
 652 static void
 653 do_sfiles(FILE *fp)
 654 {
 655         struct file_list *tp;
 656         int lpos, len;
 657
 658         fputs("SFILES=", fp);
 659         lpos = 8;
 660         for (tp = ftab; tp != NULL; tp = tp->f_next)
 661                 if (tp->f_type != INVISIBLE) {
 662                         len = strlen(tp->f_fn);
 663                         if (tp->f_fn[len - 1] != 'S' && tp->f_fn[len - 1] != 's')
 664                                 continue;
 665                         if ((len = 3 + len) + lpos > 72) {
 666                                 lpos = 8;
 667                                 fputs("\\\n\t", fp);
 668                         }
 669                         fprintf(fp, "$S/%s ", tp->f_fn);
 670                         lpos += len + 1;
 671                 }
 672         if (lpos != 8)
 673                 putc('\n', fp);
 674 }
 675
 676
 677 static char *
 678 tail(char *fn)
 679 {
 680         char *cp;
 681
 682         cp = strrchr(fn, '/');
 683         if (cp == 0)
 684                 return(fn);
 685         return(cp + 1);
 686 }
 687
 688 /*
 689  * Create the makerules for each file
 690  * which is part of the system.
 691  * Devices are processed with the special c2 option -i
 692  * which avoids any problem areas with i/o addressing
 693  * (e.g. for the VAX); assembler files are processed by as.
 694  */
 695 static void
 696 do_rules(FILE *f)
 697 {
 698         char *cp, *np, och, *tp;
 699         struct file_list *ftp;
 700         char *special;
 701
 702         for (ftp = ftab; ftp != NULL; ftp = ftp->f_next) {
 703                 if (ftp->f_type == INVISIBLE)
 704                         continue;
 705                 if (ftp->f_warn != NULL)
 706                         printf("WARNING: %s\n", ftp->f_warn);
 707                 cp = (np = ftp->f_fn) + strlen(ftp->f_fn) - 1;
 708                 och = *cp;
 709                 if (ftp->f_flags & NO_IMPLCT_RULE) {
 710                         if (ftp->f_depends)
 711                                 fprintf(f, "%s: %s\n", np, ftp->f_depends);
 712                         else
 713                                 fprintf(f, "%s: \n", np);
 714                 }
 715                 else {
 716                         *cp = '\0';
 717                         if (och == 'o') {
 718                                 fprintf(f, "%so:\n\t-cp $S/%so .\n\n",
 719                                         tail(np), np);
 720                                 continue;
 721                         }
 722                         if (ftp->f_depends)
 723                                 fprintf(f, "%so: $S/%s%c %s\n", tail(np),
 724                                         np, och, ftp->f_depends);
 725                         else
 726                                 fprintf(f, "%so: $S/%s%c\n", tail(np),
 727                                         np, och);
 728                 }
 729                 tp = tail(np);
 730                 special = ftp->f_special;
 731                 if (special == NULL) {
 732                         const char *ftype = NULL;
 733                         static char cmd[128];
 734
 735                         switch (ftp->f_type) {
 736
 737                         case NORMAL:
 738                                 ftype = "NORMAL";
 739                                 break;
 740
 741                         case PROFILING:
 742                                 if (!profiling)
 743                                         continue;
 744                                 ftype = "PROFILE";
 745                                 break;
 746
 747                         default:
 748                                 printf("config: don't know rules for %s\n", np);
 749                                 break;
 750                         }
 751                         snprintf(cmd, sizeof(cmd), "${%s_%c%s}",
 752                             ftype, toupper(och),
 753                             ftp->f_flags & CONFIGDEP ? "_C" : "");
 754                         special = cmd;
 755                 }
 756                 *cp = och;
 757                 fprintf(f, "\t%s\n\n", special);
 758         }
 759 }
 760
 761 static void
 762 do_clean(FILE *fp)
 763 {
 764         struct file_list *tp;
 765         int lpos, len;
 766
 767         fputs("CLEAN=", fp);
 768         lpos = 7;
 769         for (tp = ftab; tp != NULL; tp = tp->f_next)
 770                 if (tp->f_clean) {
 771                         len = strlen(tp->f_clean);
 772                         if (len + lpos > 72) {
 773                                 lpos = 8;
 774                                 fputs("\\\n\t", fp);
 775                         }
 776                         fprintf(fp, "%s ", tp->f_clean);
 777                         lpos += len + 1;
 778                 }
 779         if (lpos != 8)
 780                 putc('\n', fp);
 781 }
 782
 783 char *
 784 raisestr(char *str)
 785 {
 786         char *cp = str;
 787
 788         while (*str) {
 789                 if (islower(*str))
 790                         *str = toupper(*str);
 791                 str++;
 792         }
 793         return(cp);
 794 }