usr.sbin/config/mkmakefile.cc

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