usr.sbin/config/mkmakefile.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-3-Clause
   3  *
   4  * Copyright (c) 1980, 1990, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31
  32 #ifndef lint
  33 #if 0
  34 static char sccsid[] = "@(#)mkmakefile.c        8.1 (Berkeley) 6/6/93";
  35 #endif
  36 static const char rcsid[] =
  37   "$FreeBSD$";
  38 #endif /* not lint */
  39
  40 /*
  41  * Build the makefile for the system, from
  42  * the information in the files files and the
  43  * additional files for the machine being compiled to.
  44  */
  45
  46 #include <ctype.h>
  47 #include <err.h>
  48 #include <stdarg.h>
  49 #include <stdbool.h>
  50 #include <stdio.h>
  51 #include <string.h>
  52 #include <sys/cnv.h>
  53 #include <sys/nv.h>
  54 #include <sys/param.h>
  55 #include "y.tab.h"
  56 #include "config.h"
  57 #include "configvers.h"
  58
  59 static char *tail(char *);
  60 static void do_clean(FILE *);
  61 static void do_rules(FILE *);
  62 static void do_xxfiles(char *, FILE *);
  63 static void do_objs(FILE *);
  64 static void do_before_depend(FILE *);
  65 static int opteq(const char *, const char *);
  66 static void read_files(void);
  67 static void sanitize_envline(char *result, const char *src);
  68 static bool preprocess(char *line, char *result);
  69 static void process_into_file(char *line, FILE *ofp);
  70 static void process_into_nvlist(char *line, nvlist_t *nvl);
  71 static void dump_nvlist(nvlist_t *nvl, FILE *ofp);
  72
  73 static void errout(const char *fmt, ...)
  74 {
  75         va_list ap;
  76
  77         va_start(ap, fmt);
  78         vfprintf(stderr, fmt, ap);
  79         va_end(ap);
  80         exit(1);
  81 }
  82
  83 /*
  84  * Lookup a file, by name.
  85  */
  86 static struct file_list *
  87 fl_lookup(char *file)
  88 {
  89         struct file_list *fp;
  90
  91         STAILQ_FOREACH(fp, &ftab, f_next) {
  92                 if (eq(fp->f_fn, file))
  93                         return (fp);
  94         }
  95         return (0);
  96 }
  97
  98 /*
  99  * Make a new file list entry
 100  */
 101 static struct file_list *
 102 new_fent(void)
 103 {
 104         struct file_list *fp;
 105
 106         fp = (struct file_list *) calloc(1, sizeof *fp);
 107         if (fp == NULL)
 108                 err(EXIT_FAILURE, "calloc");
 109         STAILQ_INSERT_TAIL(&ftab, fp, f_next);
 110         return (fp);
 111 }
 112
 113 /*
 114  * Open the correct Makefile and return it, or error out.
 115  */
 116 FILE *
 117 open_makefile_template(void)
 118 {
 119         FILE *ifp;
 120         char line[BUFSIZ];
 121
 122         snprintf(line, sizeof(line), "../../conf/Makefile.%s", machinename);
 123         ifp = fopen(line, "r");
 124         if (ifp == NULL) {
 125                 snprintf(line, sizeof(line), "Makefile.%s", machinename);
 126                 ifp = fopen(line, "r");
 127         }
 128         if (ifp == NULL)
 129                 err(1, "%s", line);
 130         return (ifp);
 131 }
 132
 133 /*
 134  * Build the makefile from the skeleton
 135  */
 136 void
 137 makefile(void)
 138 {
 139         FILE *ifp, *ofp;
 140         char line[BUFSIZ];
 141         struct opt *op, *t;
 142
 143         read_files();
 144         ifp = open_makefile_template();
 145         ofp = fopen(path("Makefile.new"), "w");
 146         if (ofp == NULL)
 147                 err(1, "%s", path("Makefile.new"));
 148         fprintf(ofp, "KERN_IDENT=%s\n", ident);
 149         fprintf(ofp, "MACHINE=%s\n", machinename);
 150         fprintf(ofp, "MACHINE_ARCH=%s\n", machinearch);
 151         SLIST_FOREACH_SAFE(op, &mkopt, op_next, t) {
 152                 fprintf(ofp, "%s=%s", op->op_name, op->op_value);
 153                 while ((op = SLIST_NEXT(op, op_append)) != NULL)
 154                         fprintf(ofp, " %s", op->op_value);
 155                 fprintf(ofp, "\n");
 156         }
 157         if (debugging)
 158                 fprintf(ofp, "DEBUG=-g\n");
 159         if (profiling)
 160                 fprintf(ofp, "PROFLEVEL=%d\n", profiling);
 161         if (*srcdir != '\0')
 162                 fprintf(ofp,"S=%s\n", srcdir);
 163         while (fgets(line, BUFSIZ, ifp) != NULL) {
 164                 if (*line != '%') {
 165                         fprintf(ofp, "%s", line);
 166                         continue;
 167                 }
 168                 if (eq(line, "%BEFORE_DEPEND\n"))
 169                         do_before_depend(ofp);
 170                 else if (eq(line, "%OBJS\n"))
 171                         do_objs(ofp);
 172                 else if (strncmp(line, "%FILES.", 7) == 0)
 173                         do_xxfiles(line, ofp);
 174                 else if (eq(line, "%RULES\n"))
 175                         do_rules(ofp);
 176                 else if (eq(line, "%CLEAN\n"))
 177                         do_clean(ofp);
 178                 else if (strncmp(line, "%VERSREQ=", 9) == 0)
 179                         line[0] = '\0'; /* handled elsewhere */
 180                 else
 181                         fprintf(stderr,
 182                             "Unknown %% construct in generic makefile: %s",
 183                             line);
 184         }
 185         (void) fclose(ifp);
 186         (void) fclose(ofp);
 187         moveifchanged(path("Makefile.new"), path("Makefile"));
 188 }
 189
 190 static void
 191 sanitize_envline(char *result, const char *src)
 192 {
 193         const char *eq;
 194         char c, *dst;
 195         bool leading;
 196
 197         /* If there is no '=' it's not a well-formed name=value line. */
 198         if ((eq = strchr(src, '=')) == NULL) {
 199                 *result = 0;
 200                 return;
 201         }
 202         dst = result;
 203
 204         /* Copy chars before the '=', skipping any leading spaces/quotes. */
 205         leading = true;
 206         while (src < eq) {
 207                 c = *src++;
 208                 if (leading && (isspace(c) || c == '"'))
 209                         continue;
 210                 *dst++ = c;
 211                 leading = false;
 212         }
 213
 214         /* If it was all leading space, we don't have a well-formed line. */
 215         if (leading) {
 216                 *result = 0;
 217                 return;
 218         }
 219
 220         /* Trim spaces/quotes immediately before the '=', then copy the '='. */
 221         while (isspace(dst[-1]) || dst[-1] == '"')
 222                 --dst;
 223         *dst++ = *src++;
 224
 225         /* Copy chars after the '=', skipping any leading whitespace. */
 226         leading = true;
 227         while ((c = *src++) != 0) {
 228                 if (leading && (isspace(c) || c == '"'))
 229                         continue;
 230                 *dst++ = c;
 231                 leading = false;
 232         }
 233
 234         /* If it was all leading space, it's a valid 'var=' (nil value). */
 235         if (leading) {
 236                 *dst = 0;
 237                 return;
 238         }
 239
 240         /* Trim trailing whitespace and quotes. */
 241         while (isspace(dst[-1]) || dst[-1] == '"')
 242                 --dst;
 243
 244         *dst = 0;
 245 }
 246
 247 /*
 248  * Returns true if the caller may use the string.
 249  */
 250 static bool
 251 preprocess(char *line, char *result)
 252 {
 253
 254         char result[BUFSIZ], *s;
 255
 256         /* Strip any comments */
 257         if ((s = strchr(line, '#')) != NULL)
 258                 *s = '\0';
 259         sanitize_envline(result, line);
 260         /* Return true if it's non-empty */
 261         return (*result != '\0');
 262 }
 263
 264 static void
 265 process_into_file(char *line, FILE *ofp)
 266 {
 267         char result[BUFSIZ];
 268
 269         if (preprocess(line, result))
 270                 fprintf(ofp, "\"%s\\0\"\n", result);
 271 }
 272
 273 static void
 274 process_into_nvlist(char *line, nvlist_t *nvl)
 275 {
 276         char result[BUFSIZ], *s;
 277
 278         if (preprocess(line, result)) {
 279                 s = strchr(result, '=');
 280                 *s = '\0';
 281                 if (nvlist_exists(nvl, result))
 282                         nvlist_free(nvl, result);
 283                 nvlist_add_string(nvl, result, s + 1);
 284         }
 285 }
 286
 287 static void
 288 dump_nvlist(nvlist_t *nvl, FILE *ofp)
 289 {
 290         const char *name;
 291         void *cookie;
 292
 293         if (nvl == NULL)
 294                 return;
 295
 296         while (!nvlist_empty(nvl)) {
 297                 cookie = NULL;
 298                 name = nvlist_next(nvl, NULL, &cookie);
 299                 fprintf(ofp, "\"%s=%s\\0\"\n", name,
 300                      cnvlist_get_string(cookie));
 301
 302                 cnvlist_free_string(cookie);
 303         }
 304 }
 305
 306 /*
 307  * Build hints.c from the skeleton
 308  */
 309 void
 310 makehints(void)
 311 {
 312         FILE *ifp, *ofp;
 313         nvlist_t *nvl;
 314         char line[BUFSIZ];
 315         struct hint *hint;
 316
 317         ofp = fopen(path("hints.c.new"), "w");
 318         if (ofp == NULL)
 319                 err(1, "%s", path("hints.c.new"));
 320         fprintf(ofp, "#include <sys/types.h>\n");
 321         fprintf(ofp, "#include <sys/systm.h>\n");
 322         fprintf(ofp, "\n");
 323         /*
 324          * Write out hintmode for older kernels. Remove when config(8) major
 325          * version rolls over.
 326          */
 327         if (versreq <= CONFIGVERS_ENVMODE_REQ)
 328                 fprintf(ofp, "int hintmode = %d;\n",
 329                         !STAILQ_EMPTY(&hints) ? 1 : 0);
 330         fprintf(ofp, "char static_hints[] = {\n");
 331         nvl = nvlist_create(0);
 332         STAILQ_FOREACH(hint, &hints, hint_next) {
 333                 ifp = fopen(hint->hint_name, "r");
 334                 if (ifp == NULL)
 335                         err(1, "%s", hint->hint_name);
 336                 while (fgets(line, BUFSIZ, ifp) != NULL)
 337                         process_into_nvlist(line, nvl);
 338                 dump_nvlist(nvl, ofp);
 339                 fclose(ifp);
 340         }
 341         nvlist_destroy(nvl);
 342         fprintf(ofp, "\"\\0\"\n};\n");
 343         fclose(ofp);
 344         moveifchanged(path("hints.c.new"), path("hints.c"));
 345 }
 346
 347 /*
 348  * Build env.c from the skeleton
 349  */
 350 void
 351 makeenv(void)
 352 {
 353         FILE *ifp, *ofp;
 354         nvlist_t *nvl;
 355         char line[BUFSIZ];
 356         struct envvar *envvar;
 357
 358         ofp = fopen(path("env.c.new"), "w");
 359         if (ofp == NULL)
 360                 err(1, "%s", path("env.c.new"));
 361         fprintf(ofp, "#include <sys/types.h>\n");
 362         fprintf(ofp, "#include <sys/systm.h>\n");
 363         fprintf(ofp, "\n");
 364         /*
 365          * Write out envmode for older kernels. Remove when config(8) major
 366          * version rolls over.
 367          */
 368         if (versreq <= CONFIGVERS_ENVMODE_REQ)
 369                 fprintf(ofp, "int envmode = %d;\n",
 370                         !STAILQ_EMPTY(&envvars) ? 1 : 0);
 371         fprintf(ofp, "char static_env[] = {\n");
 372         nvl = nvlist_create(0);
 373         STAILQ_FOREACH(envvar, &envvars, envvar_next) {
 374                 if (envvar->env_is_file) {
 375                         ifp = fopen(envvar->env_str, "r");
 376                         if (ifp == NULL)
 377                                 err(1, "%s", envvar->env_str);
 378                         while (fgets(line, BUFSIZ, ifp) != NULL)
 379                                 process_into_nvlist(line, nvl);
 380                         dump_nvlist(nvl, ofp);
 381                         fclose(ifp);
 382                 } else
 383                         process_into_file(envvar->env_str, ofp);
 384         }
 385         nvlist_destroy(nvl);
 386         fprintf(ofp, "\"\\0\"\n};\n");
 387         fclose(ofp);
 388         moveifchanged(path("env.c.new"), path("env.c"));
 389 }
 390
 391 static void
 392 read_file(char *fname)
 393 {
 394         char ifname[MAXPATHLEN];
 395         FILE *fp;
 396         struct file_list *tp;
 397         struct device *dp;
 398         struct opt *op;
 399         char *wd, *this, *compilewith, *depends, *clean, *warning;
 400         const char *objprefix;
 401         int compile, match, nreqs, std, filetype, not,
 402             imp_rule, no_obj, before_depend, nowerror;
 403
 404         fp = fopen(fname, "r");
 405         if (fp == NULL)
 406                 err(1, "%s", fname);
 407 next:
 408         /*
 409          * include "filename"
 410          * filename    [ standard | optional ]
 411          *      [ dev* [ | dev* ... ] | profiling-routine ] [ no-obj ]
 412          *      [ compile-with "compile rule" [no-implicit-rule] ]
 413          *      [ dependency "dependency-list"] [ before-depend ]
 414          *      [ clean "file-list"] [ warning "text warning" ]
 415          *      [ obj-prefix "file prefix"]
 416          */
 417         wd = get_word(fp);
 418         if (wd == (char *)EOF) {
 419                 (void) fclose(fp);
 420                 return;
 421         }
 422         if (wd == NULL)
 423                 goto next;
 424         if (wd[0] == '#')
 425         {
 426                 while (((wd = get_word(fp)) != (char *)EOF) && wd)
 427                         ;
 428                 goto next;
 429         }
 430         if (eq(wd, "include")) {
 431                 wd = get_quoted_word(fp);
 432                 if (wd == (char *)EOF || wd == NULL)
 433                         errout("%s: missing include filename.\n", fname);
 434                 (void) snprintf(ifname, sizeof(ifname), "../../%s", wd);
 435                 read_file(ifname);
 436                 while (((wd = get_word(fp)) != (char *)EOF) && wd)
 437                         ;
 438                 goto next;
 439         }
 440         this = ns(wd);
 441         wd = get_word(fp);
 442         if (wd == (char *)EOF)
 443                 return;
 444         if (wd == NULL)
 445                 errout("%s: No type for %s.\n", fname, this);
 446         tp = fl_lookup(this);
 447         compile = 0;
 448         match = 1;
 449         nreqs = 0;
 450         compilewith = 0;
 451         depends = 0;
 452         clean = 0;
 453         warning = 0;
 454         std = 0;
 455         imp_rule = 0;
 456         no_obj = 0;
 457         before_depend = 0;
 458         nowerror = 0;
 459         not = 0;
 460         filetype = NORMAL;
 461         objprefix = "";
 462         if (eq(wd, "standard"))
 463                 std = 1;
 464         else if (!eq(wd, "optional"))
 465                 errout("%s: \"%s\" %s must be optional or standard\n",
 466                     fname, wd, this);
 467         for (wd = get_word(fp); wd; wd = get_word(fp)) {
 468                 if (wd == (char *)EOF)
 469                         return;
 470                 if (eq(wd, "!")) {
 471                         not = 1;
 472                         continue;
 473                 }
 474                 if (eq(wd, "|")) {
 475                         if (nreqs == 0)
 476                                 errout("%s: syntax error describing %s\n",
 477                                        fname, this);
 478                         compile += match;
 479                         match = 1;
 480                         nreqs = 0;
 481                         continue;
 482                 }
 483                 if (eq(wd, "no-obj")) {
 484                         no_obj++;
 485                         continue;
 486                 }
 487                 if (eq(wd, "no-implicit-rule")) {
 488                         if (compilewith == NULL)
 489                                 errout("%s: alternate rule required when "
 490                                        "\"no-implicit-rule\" is specified for"
 491                                        " %s.\n",
 492                                        fname, this);
 493                         imp_rule++;
 494                         continue;
 495                 }
 496                 if (eq(wd, "before-depend")) {
 497                         before_depend++;
 498                         continue;
 499                 }
 500                 if (eq(wd, "dependency")) {
 501                         wd = get_quoted_word(fp);
 502                         if (wd == (char *)EOF || wd == NULL)
 503                                 errout("%s: %s missing dependency string.\n",
 504                                        fname, this);
 505                         depends = ns(wd);
 506                         continue;
 507                 }
 508                 if (eq(wd, "clean")) {
 509                         wd = get_quoted_word(fp);
 510                         if (wd == (char *)EOF || wd == NULL)
 511                                 errout("%s: %s missing clean file list.\n",
 512                                        fname, this);
 513                         clean = ns(wd);
 514                         continue;
 515                 }
 516                 if (eq(wd, "compile-with")) {
 517                         wd = get_quoted_word(fp);
 518                         if (wd == (char *)EOF || wd == NULL)
 519                                 errout("%s: %s missing compile command string.\n",
 520                                        fname, this);
 521                         compilewith = ns(wd);
 522                         continue;
 523                 }
 524                 if (eq(wd, "warning")) {
 525                         wd = get_quoted_word(fp);
 526                         if (wd == (char *)EOF || wd == NULL)
 527                                 errout("%s: %s missing warning text string.\n",
 528                                        fname, this);
 529                         warning = ns(wd);
 530                         continue;
 531                 }
 532                 if (eq(wd, "obj-prefix")) {
 533                         wd = get_quoted_word(fp);
 534                         if (wd == (char *)EOF || wd == NULL)
 535                                 errout("%s: %s missing object prefix string.\n",
 536                                        fname, this);
 537                         objprefix = ns(wd);
 538                         continue;
 539                 }
 540                 if (eq(wd, "nowerror")) {
 541                         nowerror = 1;
 542                         continue;
 543                 }
 544                 if (eq(wd, "local")) {
 545                         filetype = LOCAL;
 546                         continue;
 547                 }
 548                 if (eq(wd, "no-depend")) {
 549                         filetype = NODEPEND;
 550                         continue;
 551                 }
 552                 nreqs++;
 553                 if (eq(wd, "profiling-routine")) {
 554                         filetype = PROFILING;
 555                         continue;
 556                 }
 557                 if (std)
 558                         errout("standard entry %s has optional inclusion specifier %s!\n",
 559                                this, wd);
 560                 STAILQ_FOREACH(dp, &dtab, d_next)
 561                         if (eq(dp->d_name, wd)) {
 562                                 if (not)
 563                                         match = 0;
 564                                 else
 565                                         dp->d_done |= DEVDONE;
 566                                 goto nextparam;
 567                         }
 568                 SLIST_FOREACH(op, &opt, op_next)
 569                         if (op->op_value == 0 && opteq(op->op_name, wd)) {
 570                                 if (not)
 571                                         match = 0;
 572                                 goto nextparam;
 573                         }
 574                 match &= not;
 575 nextparam:;
 576                 not = 0;
 577         }
 578         compile += match;
 579         if (compile && tp == NULL) {
 580                 if (std == 0 && nreqs == 0)
 581                         errout("%s: what is %s optional on?\n",
 582                                fname, this);
 583                 if (filetype == PROFILING && profiling == 0)
 584                         goto next;
 585                 tp = new_fent();
 586                 tp->f_fn = this;
 587                 tp->f_type = filetype;
 588                 if (filetype == LOCAL)
 589                         tp->f_srcprefix = "";
 590                 else
 591                         tp->f_srcprefix = "$S/";
 592                 if (imp_rule)
 593                         tp->f_flags |= NO_IMPLCT_RULE;
 594                 if (no_obj)
 595                         tp->f_flags |= NO_OBJ;
 596                 if (before_depend)
 597                         tp->f_flags |= BEFORE_DEPEND;
 598                 if (nowerror)
 599                         tp->f_flags |= NOWERROR;
 600                 tp->f_compilewith = compilewith;
 601                 tp->f_depends = depends;
 602                 tp->f_clean = clean;
 603                 tp->f_warn = warning;
 604                 tp->f_objprefix = objprefix;
 605         }
 606         goto next;
 607 }
 608
 609 /*
 610  * Read in the information about files used in making the system.
 611  * Store it in the ftab linked list.
 612  */
 613 static void
 614 read_files(void)
 615 {
 616         char fname[MAXPATHLEN];
 617         struct files_name *nl, *tnl;
 618
 619         (void) snprintf(fname, sizeof(fname), "../../conf/files");
 620         read_file(fname);
 621         (void) snprintf(fname, sizeof(fname),
 622                         "../../conf/files.%s", machinename);
 623         read_file(fname);
 624         for (nl = STAILQ_FIRST(&fntab); nl != NULL; nl = tnl) {
 625                 read_file(nl->f_name);
 626                 tnl = STAILQ_NEXT(nl, f_next);
 627                 free(nl->f_name);
 628                 free(nl);
 629         }
 630 }
 631
 632 static int
 633 opteq(const char *cp, const char *dp)
 634 {
 635         char c, d;
 636
 637         for (; ; cp++, dp++) {
 638                 if (*cp != *dp) {
 639                         c = isupper(*cp) ? tolower(*cp) : *cp;
 640                         d = isupper(*dp) ? tolower(*dp) : *dp;
 641                         if (c != d)
 642                                 return (0);
 643                 }
 644                 if (*cp == 0)
 645                         return (1);
 646         }
 647 }
 648
 649 static void
 650 do_before_depend(FILE *fp)
 651 {
 652         struct file_list *tp;
 653         int lpos, len;
 654
 655         fputs("BEFORE_DEPEND=", fp);
 656         lpos = 15;
 657         STAILQ_FOREACH(tp, &ftab, f_next)
 658                 if (tp->f_flags & BEFORE_DEPEND) {
 659                         len = strlen(tp->f_fn);
 660                         if ((len = 3 + len) + lpos > 72) {
 661                                 lpos = 8;
 662                                 fputs("\\\n\t", fp);
 663                         }
 664                         if (tp->f_flags & NO_IMPLCT_RULE)
 665                                 fprintf(fp, "%s ", tp->f_fn);
 666                         else
 667                                 fprintf(fp, "%s%s ", tp->f_srcprefix,
 668                                     tp->f_fn);
 669                         lpos += len + 1;
 670                 }
 671         if (lpos != 8)
 672                 putc('\n', fp);
 673 }
 674
 675 static void
 676 do_objs(FILE *fp)
 677 {
 678         struct file_list *tp;
 679         int lpos, len;
 680         char *cp, och, *sp;
 681
 682         fprintf(fp, "OBJS=");
 683         lpos = 6;
 684         STAILQ_FOREACH(tp, &ftab, f_next) {
 685                 if (tp->f_flags & NO_OBJ)
 686                         continue;
 687                 sp = tail(tp->f_fn);
 688                 cp = sp + (len = strlen(sp)) - 1;
 689                 och = *cp;
 690                 *cp = 'o';
 691                 len += strlen(tp->f_objprefix);
 692                 if (len + lpos > 72) {
 693                         lpos = 8;
 694                         fprintf(fp, "\\\n\t");
 695                 }
 696                 fprintf(fp, "%s%s ", tp->f_objprefix, sp);
 697                 lpos += len + 1;
 698                 *cp = och;
 699         }
 700         if (lpos != 8)
 701                 putc('\n', fp);
 702 }
 703
 704 static void
 705 do_xxfiles(char *tag, FILE *fp)
 706 {
 707         struct file_list *tp;
 708         int lpos, len, slen;
 709         char *suff, *SUFF;
 710
 711         if (tag[strlen(tag) - 1] == '\n')
 712                 tag[strlen(tag) - 1] = '\0';
 713
 714         suff = ns(tag + 7);
 715         SUFF = ns(suff);
 716         raisestr(SUFF);
 717         slen = strlen(suff);
 718
 719         fprintf(fp, "%sFILES=", SUFF);
 720         free(SUFF);
 721         lpos = 8;
 722         STAILQ_FOREACH(tp, &ftab, f_next)
 723                 if (tp->f_type != NODEPEND) {
 724                         len = strlen(tp->f_fn);
 725                         if (tp->f_fn[len - slen - 1] != '.')
 726                                 continue;
 727                         if (strcasecmp(&tp->f_fn[len - slen], suff) != 0)
 728                                 continue;
 729                         if ((len = 3 + len) + lpos > 72) {
 730                                 lpos = 8;
 731                                 fputs("\\\n\t", fp);
 732                         }
 733                         fprintf(fp, "%s%s ", tp->f_srcprefix, tp->f_fn);
 734                         lpos += len + 1;
 735                 }
 736         free(suff);
 737         if (lpos != 8)
 738                 putc('\n', fp);
 739 }
 740
 741 static char *
 742 tail(char *fn)
 743 {
 744         char *cp;
 745
 746         cp = strrchr(fn, '/');
 747         if (cp == NULL)
 748                 return (fn);
 749         return (cp+1);
 750 }
 751
 752 /*
 753  * Create the makerules for each file
 754  * which is part of the system.
 755  */
 756 static void
 757 do_rules(FILE *f)
 758 {
 759         char *cp, *np, och;
 760         struct file_list *ftp;
 761         char *compilewith;
 762         char cmd[128];
 763
 764         STAILQ_FOREACH(ftp, &ftab, f_next) {
 765                 if (ftp->f_warn)
 766                         fprintf(stderr, "WARNING: %s\n", ftp->f_warn);
 767                 cp = (np = ftp->f_fn) + strlen(ftp->f_fn) - 1;
 768                 och = *cp;
 769                 if (ftp->f_flags & NO_IMPLCT_RULE) {
 770                         if (ftp->f_depends)
 771                                 fprintf(f, "%s%s: %s\n",
 772                                         ftp->f_objprefix, np, ftp->f_depends);
 773                         else
 774                                 fprintf(f, "%s%s: \n", ftp->f_objprefix, np);
 775                 }
 776                 else {
 777                         *cp = '\0';
 778                         if (och == 'o') {
 779                                 fprintf(f, "%s%so:\n\t-cp %s%so .\n\n",
 780                                         ftp->f_objprefix, tail(np),
 781                                         ftp->f_srcprefix, np);
 782                                 continue;
 783                         }
 784                         if (ftp->f_depends) {
 785                                 fprintf(f, "%s%so: %s%s%c %s\n",
 786                                         ftp->f_objprefix, tail(np),
 787                                         ftp->f_srcprefix, np, och,
 788                                         ftp->f_depends);
 789                         }
 790                         else {
 791                                 fprintf(f, "%s%so: %s%s%c\n",
 792                                         ftp->f_objprefix, tail(np),
 793                                         ftp->f_srcprefix, np, och);
 794                         }
 795                 }
 796                 compilewith = ftp->f_compilewith;
 797                 if (compilewith == NULL) {
 798                         const char *ftype = NULL;
 799
 800                         switch (ftp->f_type) {
 801                         case NORMAL:
 802                                 ftype = "NORMAL";
 803                                 break;
 804                         case PROFILING:
 805                                 if (!profiling)
 806                                         continue;
 807                                 ftype = "PROFILE";
 808                                 break;
 809                         default:
 810                                 fprintf(stderr,
 811                                     "config: don't know rules for %s\n", np);
 812                                 break;
 813                         }
 814                         snprintf(cmd, sizeof(cmd),
 815                             "${%s_%c%s}", ftype,
 816                             toupper(och),
 817                             ftp->f_flags & NOWERROR ? "_NOWERROR" : "");
 818                         compilewith = cmd;
 819                 }
 820                 *cp = och;
 821                 if (strlen(ftp->f_objprefix))
 822                         fprintf(f, "\t%s %s%s\n", compilewith,
 823                             ftp->f_srcprefix, np);
 824                 else
 825                         fprintf(f, "\t%s\n", compilewith);
 826
 827                 if (!(ftp->f_flags & NO_OBJ))
 828                         fprintf(f, "\t${NORMAL_CTFCONVERT}\n\n");
 829                 else
 830                         fprintf(f, "\n");
 831         }
 832 }
 833
 834 static void
 835 do_clean(FILE *fp)
 836 {
 837         struct file_list *tp;
 838         int lpos, len;
 839
 840         fputs("CLEAN=", fp);
 841         lpos = 7;
 842         STAILQ_FOREACH(tp, &ftab, f_next)
 843                 if (tp->f_clean) {
 844                         len = strlen(tp->f_clean);
 845                         if (len + lpos > 72) {
 846                                 lpos = 8;
 847                                 fputs("\\\n\t", fp);
 848                         }
 849                         fprintf(fp, "%s ", tp->f_clean);
 850                         lpos += len + 1;
 851                 }
 852         if (lpos != 8)
 853                 putc('\n', fp);
 854 }
 855
 856 char *
 857 raisestr(char *str)
 858 {
 859         char *cp = str;
 860
 861         while (*str) {
 862                 if (islower(*str))
 863                         *str = toupper(*str);
 864                 str++;
 865         }
 866         return (cp);
 867 }