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