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1 /*
2 * Copyright (c) 1999-2016 Apple Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * "Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
7 * Reserved. This file contains Original Code and/or Modifications of
8 * Original Code as defined in and that are subject to the Apple Public
9 * Source License Version 1.0 (the 'License'). You may not use this file
10 * except in compliance with the License. Please obtain a copy of the
11 * License at http://www.apple.com/publicsource and read it before using
12 * this file.
13 *
14 * The Original Code and all software distributed under the License are
15 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
19 * License for the specific language governing rights and limitations
20 * under the License."
21 *
22 * @APPLE_LICENSE_HEADER_END@
23 */
24 /*
25 * Mach Operating System
26 * Copyright (c) 1990 Carnegie-Mellon University
27 * Copyright (c) 1989 Carnegie-Mellon University
28 * Copyright (c) 1988 Carnegie-Mellon University
29 * Copyright (c) 1987 Carnegie-Mellon University
30 * All rights reserved. The CMU software License Agreement specifies
31 * the terms and conditions for use and redistribution.
32 */
33
34 /*
35 * Copyright (c) 1980 Regents of the University of California.
36 * All rights reserved.
37 *
38 * Redistribution and use in source and binary forms are permitted
39 * provided that the above copyright notice and this paragraph are
40 * duplicated in all such forms and that any documentation,
41 * advertising materials, and other materials related to such
42 * distribution and use acknowledge that the software was developed
43 * by the University of California, Berkeley. The name of the
44 * University may not be used to endorse or promote products derived
45 * from this software without specific prior written permission.
46 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
47 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
48 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
49 */
50
51 #ifndef lint
52 static char sccsid[] __attribute__((used)) = "@(#)mkmakefile.c 5.21 (Berkeley) 6/18/88";
53 #endif /* not lint */
54
55 /*
56 * Build the makefile for the system, from
57 * the information in the files files and the
58 * additional files for the machine being compiled to.
59 */
60
61 #include <stdio.h>
62 #include <unistd.h> /* for unlink */
63 #include <ctype.h>
64 #include "parser.h"
65 #include "config.h"
66
67 void read_files(void);
68 void do_objs(FILE *fp, const char *msg, int ext);
69 void do_files(FILE *fp, const char *msg, char ext);
70 void do_machdep(FILE *ofp);
71 void do_rules(FILE *f);
72 void copy_dependencies(FILE *makin, FILE *makout);
73
74 struct file_list *fl_lookup(char *file);
75 struct file_list *fltail_lookup(char *file);
76 struct file_list *new_fent(void);
77
78 void put_source_file_name(FILE *fp, struct file_list *tp);
79
80
81 #define next_word(fp, wd) \
82 { const char *word = get_word(fp); \
83 if (word == (char *)EOF) \
84 return; \
85 else \
86 wd = word; \
87 }
88
89 static struct file_list *fcur;
90 const char *tail(const char *fn);
91 char *allCaps(char *str);
92
93 /*
94 * Lookup a file, by name.
95 */
96 struct file_list *
97 fl_lookup(char *file)
98 {
99 struct file_list *fp;
100
101 for (fp = ftab ; fp != 0; fp = fp->f_next) {
102 if (eq(fp->f_fn, file))
103 return (fp);
104 }
105 return (0);
106 }
107
108 /*
109 * Lookup a file, by final component name.
110 */
111 struct file_list *
112 fltail_lookup(char *file)
113 {
114 struct file_list *fp;
115
116 for (fp = ftab ; fp != 0; fp = fp->f_next) {
117 if (eq(tail(fp->f_fn), tail(file)))
118 return (fp);
119 }
120 return (0);
121 }
122
123 /*
124 * Make a new file list entry
125 */
126 struct file_list *
127 new_fent(void)
128 {
129 struct file_list *fp;
130
131 fp = (struct file_list *) malloc(sizeof *fp);
132 fp->f_needs = 0;
133 fp->f_next = 0;
134 fp->f_flags = 0;
135 fp->f_type = 0;
136 fp->f_extra = (char *) 0;
137 if (fcur == 0)
138 fcur = ftab = fp;
139 else
140 fcur->f_next = fp;
141 fcur = fp;
142 return (fp);
143 }
144
145 char *COPTS;
146
147 const char *
148 get_VPATH(void)
149 {
150 static char *vpath = NULL;
151
152 if ((vpath == NULL) &&
153 ((vpath = getenv("VPATH")) != NULL) &&
154 (*vpath != ':')) {
155 char *buf = malloc((unsigned)(strlen(vpath) + 2));
156
157 vpath = strcat(strcpy(buf, ":"), vpath);
158 }
159
160 return vpath ? vpath : "";
161 }
162
163
164 /*
165 * Build the makefile from the skeleton
166 */
167 void
168 makefile(void)
169 {
170 FILE *ifp, *ofp;
171 FILE *dfp;
172 char pname[BUFSIZ];
173 char line[BUFSIZ];
174 struct opt *op;
175
176 read_files();
177 (void) sprintf(line, "%s/Makefile.template", config_directory);
178 ifp = fopenp(VPATH, line, pname, "r");
179 if (ifp == 0) {
180 perror(line);
181 exit(1);
182 }
183 dfp = fopen(path("Makefile"), "r");
184 rename(path("Makefile"), path("Makefile.old"));
185 unlink(path("Makefile.old"));
186 ofp = fopen(path("Makefile"), "w");
187 if (ofp == 0) {
188 perror(path("Makefile"));
189 exit(1);
190 }
191 fprintf(ofp, "SOURCE_DIR=%s\n", source_directory);
192
193 fprintf(ofp, "export CONFIG_DEFINES =");
194 if (profiling)
195 fprintf(ofp, " -DGPROF");
196
197 for (op = opt; op; op = op->op_next)
198 if (op->op_value)
199 fprintf(ofp, " -D%s=\"%s\"", op->op_name, op->op_value);
200 else
201 fprintf(ofp, " -D%s", op->op_name);
202 fprintf(ofp, "\n");
203 for (op = mkopt; op; op = op->op_next)
204 if (op->op_value)
205 fprintf(ofp, "%s=%s\n", op->op_name, op->op_value);
206 else
207 fprintf(ofp, "%s\n", op->op_name);
208
209 while (fgets(line, BUFSIZ, ifp) != 0) {
210 if (*line == '%')
211 goto percent;
212 if (profiling && strncmp(line, "COPTS=", 6) == 0) {
213 char *cp;
214 fprintf(ofp,
215 "GPROF.EX=$(SOURCE_DIR)/machdep/%s/gmon.ex\n", machinename);
216 cp = index(line, '\n');
217 if (cp)
218 *cp = 0;
219 cp = line + 6;
220 while (*cp && (*cp == ' ' || *cp == '\t'))
221 cp++;
222 COPTS = malloc((unsigned)(strlen(cp) + 1));
223 if (COPTS == 0) {
224 printf("config: out of memory\n");
225 exit(1);
226 }
227 strcpy(COPTS, cp);
228 fprintf(ofp, "%s -pg\n", line);
229 continue;
230 }
231 fprintf(ofp, "%s", line);
232 continue;
233 percent:
234 if (eq(line, "%OBJS\n")) {
235 do_objs(ofp, "OBJS=", -1);
236 } else if (eq(line, "%CFILES\n")) {
237 do_files(ofp, "CFILES=", 'c');
238 do_objs(ofp, "COBJS=", 'c');
239 } else if (eq(line, "%CXXFILES\n")) {
240 do_files(ofp, "CXXFILES=", 'p');
241 do_objs(ofp, "CXXOBJS=", 'p');
242 } else if (eq(line, "%SFILES\n")) {
243 do_files(ofp, "SFILES=", 's');
244 do_objs(ofp, "SOBJS=", 's');
245 } else if (eq(line, "%MACHDEP\n")) {
246 do_machdep(ofp);
247 } else if (eq(line, "%RULES\n"))
248 do_rules(ofp);
249 else
250 fprintf(stderr,
251 "Unknown %% construct in generic makefile: %s",
252 line);
253 }
254 if (dfp != NULL)
255 {
256 copy_dependencies(dfp, ofp);
257 (void) fclose(dfp);
258 }
259 (void) fclose(ifp);
260 (void) fclose(ofp);
261 }
262
263 /*
264 * Read in the information about files used in making the system.
265 * Store it in the ftab linked list.
266 */
267 void
268 read_files(void)
269 {
270 FILE *fp;
271 struct file_list *tp, *pf;
272 struct device *dp;
273 struct opt *op;
274 const char *wd;
275 char *this, *needs;
276 const char *devorprof;
277 int options;
278 int not_option;
279 char pname[BUFSIZ];
280 char fname[1024];
281 char *rest = (char *) 0;
282 int nreqs, first = 1, isdup;
283
284 ftab = 0;
285 (void) sprintf(fname, "%s/files", config_directory);
286 openit:
287 fp = fopenp(VPATH, fname, pname, "r");
288 if (fp == 0) {
289 perror(fname);
290 exit(1);
291 }
292 next:
293 options = 0;
294 rest = (char *) 0;
295 /*
296 * filename [ standard | optional ]
297 * [ dev* | profiling-routine ] [ device-driver]
298 */
299 wd = get_word(fp);
300 if (wd == (char *)EOF) {
301 (void) fclose(fp);
302 if (first == 1) {
303 (void) sprintf(fname, "%s/files.%s", config_directory, machinename);
304 first++;
305 goto openit;
306 }
307 return;
308 }
309 if (wd == 0)
310 goto next;
311 /*
312 * Allow comment lines beginning witha '#' character.
313 */
314 if (*wd == '#')
315 {
316 while ((wd=get_word(fp)) && wd != (char *)EOF)
317 ;
318 goto next;
319 }
320
321 this = ns(wd);
322 next_word(fp, wd);
323 if (wd == 0) {
324 printf("%s: No type for %s.\n",
325 fname, this);
326 exit(1);
327 }
328 if ((pf = fl_lookup(this)) && (pf->f_type != INVISIBLE || pf->f_flags))
329 isdup = 1;
330 else
331 isdup = 0;
332 tp = 0;
333 nreqs = 0;
334 devorprof = "";
335 needs = 0;
336 if (eq(wd, "standard"))
337 goto checkdev;
338 if (!eq(wd, "optional")) {
339 printf("%s: %s must be optional or standard\n", fname, this);
340 exit(1);
341 }
342 if (strncmp(this, "OPTIONS/", 8) == 0)
343 options++;
344 not_option = 0;
345 nextopt:
346 next_word(fp, wd);
347 if (wd == 0)
348 goto doneopt;
349 if (eq(wd, "not")) {
350 not_option = !not_option;
351 goto nextopt;
352 }
353 devorprof = wd;
354 if (eq(wd, "device-driver") || eq(wd, "profiling-routine")) {
355 next_word(fp, wd);
356 goto save;
357 }
358 nreqs++;
359 if (needs == 0 && nreqs == 1)
360 needs = ns(wd);
361 if (isdup)
362 goto invis;
363 if (options)
364 {
365 struct opt *lop = 0;
366 struct device tdev;
367
368 /*
369 * Allocate a pseudo-device entry which we will insert into
370 * the device list below. The flags field is set non-zero to
371 * indicate an internal entry rather than one generated from
372 * the configuration file. The slave field is set to define
373 * the corresponding symbol as 0 should we fail to find the
374 * option in the option list.
375 */
376 init_dev(&tdev);
377 tdev.d_name = ns(wd);
378 tdev.d_type = PSEUDO_DEVICE;
379 tdev.d_flags++;
380 tdev.d_slave = 0;
381
382 for (op=opt; op; lop=op, op=op->op_next)
383 {
384 char *od = allCaps(ns(wd));
385
386 /*
387 * Found an option which matches the current device
388 * dependency identifier. Set the slave field to
389 * define the option in the header file.
390 */
391 if (strcmp(op->op_name, od) == 0)
392 {
393 tdev.d_slave = 1;
394 if (lop == 0)
395 opt = op->op_next;
396 else
397 lop->op_next = op->op_next;
398 free(op);
399 op = 0;
400 }
401 free(od);
402 if (op == 0)
403 break;
404 }
405 newdev(&tdev);
406 }
407 for (dp = dtab; dp != 0; dp = dp->d_next) {
408 if (eq(dp->d_name, wd) && (dp->d_type != PSEUDO_DEVICE || dp->d_slave)) {
409 if (not_option)
410 goto invis; /* dont want file if option present */
411 else
412 goto nextopt;
413 }
414 }
415 if (not_option)
416 goto nextopt; /* want file if option missing */
417
418 for (op = opt; op != 0; op = op->op_next)
419 if (op->op_value == 0 && opteq(op->op_name, wd)) {
420 if (nreqs == 1) {
421 free(needs);
422 needs = 0;
423 }
424 goto nextopt;
425 }
426
427 invis:
428 while ((wd = get_word(fp)) != 0)
429 ;
430 if (tp == 0)
431 tp = new_fent();
432 tp->f_fn = this;
433 tp->f_type = INVISIBLE;
434 tp->f_needs = needs;
435 tp->f_flags = isdup;
436 goto next;
437
438 doneopt:
439 if (nreqs == 0) {
440 printf("%s: what is %s optional on?\n",
441 fname, this);
442 exit(1);
443 }
444
445 checkdev:
446 if (wd) {
447 if (*wd == '|')
448 goto getrest;
449 next_word(fp, wd);
450 if (wd) {
451 devorprof = wd;
452 next_word(fp, wd);
453 }
454 }
455
456 save:
457 getrest:
458 if (wd) {
459 if (*wd == '|') {
460 rest = ns(get_rest(fp));
461 } else {
462 printf("%s: syntax error describing %s\n",
463 fname, this);
464 exit(1);
465 }
466 }
467 if (eq(devorprof, "profiling-routine") && profiling == 0)
468 goto next;
469 if (tp == 0)
470 tp = new_fent();
471 tp->f_fn = this;
472 tp->f_extra = rest;
473 if (options)
474 tp->f_type = INVISIBLE;
475 else
476 if (eq(devorprof, "device-driver"))
477 tp->f_type = DRIVER;
478 else if (eq(devorprof, "profiling-routine"))
479 tp->f_type = PROFILING;
480 else
481 tp->f_type = NORMAL;
482 tp->f_flags = 0;
483 tp->f_needs = needs;
484 if (pf && pf->f_type == INVISIBLE)
485 pf->f_flags = 1; /* mark as duplicate */
486 goto next;
487 }
488
489 int
490 opteq(const char *cp, const char *dp)
491 {
492 char c, d;
493
494 for (; ; cp++, dp++) {
495 if (*cp != *dp) {
496 c = isupper(*cp) ? tolower(*cp) : *cp;
497 d = isupper(*dp) ? tolower(*dp) : *dp;
498 if (c != d)
499 return (0);
500 }
501 if (*cp == 0)
502 return (1);
503 }
504 }
505
506 void
507 put_source_file_name(FILE *fp, struct file_list *tp)
508 {
509 if ((tp->f_fn[0] == '.') && (tp->f_fn[1] == '/'))
510 fprintf(fp, "%s ", tp->f_fn);
511 else
512 fprintf(fp, "$(SOURCE_DIR)/%s ", tp->f_fn);
513 }
514
515 void
516 do_objs(FILE *fp, const char *msg, int ext)
517 {
518 struct file_list *tp;
519 int lpos, len;
520 char *cp;
521 char och;
522 const char *sp;
523
524 fprintf(fp, "%s", msg);
525 lpos = strlen(msg);
526 for (tp = ftab; tp != 0; tp = tp->f_next) {
527 if (tp->f_type == INVISIBLE)
528 continue;
529
530 /*
531 * Check for '.o' file in list
532 */
533 cp = tp->f_fn + (len = strlen(tp->f_fn)) - 1;
534 if (ext != -1 && *cp != ext)
535 continue;
536 else if (*cp == 'o') {
537 if (len + lpos > 72) {
538 lpos = 8;
539 fprintf(fp, "\\\n\t");
540 }
541 put_source_file_name(fp, tp);
542 fprintf(fp, " ");
543 lpos += len + 1;
544 continue;
545 }
546 sp = tail(tp->f_fn);
547 cp = (char *)sp + (len = strlen(sp)) - 1;
548 och = *cp;
549 *cp = 'o';
550 if (len + lpos > 72) {
551 lpos = 8;
552 fprintf(fp, "\\\n\t");
553 }
554 fprintf(fp, "%s ", sp);
555 lpos += len + 1;
556 *cp = och;
557 }
558 putc('\n', fp);
559 }
560
561 void
562 do_files(FILE *fp, const char *msg, char ext)
563 {
564 struct file_list *tp;
565 int lpos, len=0; /* dvw: init to 0 */
566
567 fprintf(fp, "%s", msg);
568 lpos = 8;
569 for (tp = ftab; tp != 0; tp = tp->f_next) {
570 if (tp->f_type == INVISIBLE)
571 continue;
572 if (tp->f_fn[strlen(tp->f_fn)-1] != ext)
573 continue;
574 /*
575 * Always generate a newline.
576 * Our Makefile's aren't readable anyway.
577 */
578
579 lpos = 8;
580 fprintf(fp, "\\\n\t");
581 put_source_file_name(fp, tp);
582 lpos += len + 1;
583 }
584 putc('\n', fp);
585 }
586
587 /*
588 * Include machine dependent makefile in output
589 */
590
591 void
592 do_machdep(FILE *ofp)
593 {
594 FILE *ifp;
595 char pname[BUFSIZ];
596 char line[BUFSIZ];
597
598 (void) sprintf(line, "%s/Makefile.%s", config_directory, machinename);
599 ifp = fopenp(VPATH, line, pname, "r");
600 if (ifp == 0) {
601 perror(line);
602 exit(1);
603 }
604 while (fgets(line, BUFSIZ, ifp) != 0) {
605 if (profiling && (strncmp(line, "LIBS=", 5) == 0))
606 fprintf(ofp,"LIBS=${LIBS_P}\n");
607 else
608 fputs(line, ofp);
609 }
610 fclose(ifp);
611 }
612
613 const char *
614 tail(const char *fn)
615 {
616 const char *cp;
617
618 cp = rindex(fn, '/');
619 if (cp == 0)
620 return (fn);
621 return (cp+1);
622 }
623
624 /*
625 * Create the makerules for each file
626 * which is part of the system.
627 * Devices are processed with the special c2 option -i
628 * which avoids any problem areas with i/o addressing
629 * (e.g. for the VAX); assembler files are processed by as.
630 */
631 void
632 do_rules(FILE *f)
633 {
634 char *cp;
635 char *np, och;
636 const char *tp;
637 struct file_list *ftp;
638 const char *extras = ""; /* dvw: init to "" */
639 char *source_dir;
640 char och_upper;
641 const char *nl = "";
642
643 for (ftp = ftab; ftp != 0; ftp = ftp->f_next) {
644 if (ftp->f_type == INVISIBLE)
645 continue;
646 cp = (np = ftp->f_fn) + strlen(ftp->f_fn) - 1;
647 och = *cp;
648 /*
649 * Don't compile '.o' files
650 */
651 if (och == 'o')
652 continue;
653 /*
654 * Determine where sources should come from
655 */
656 if ((np[0] == '.') && (np[1] == '/')) {
657 source_dir = "";
658 np += 2;
659 } else
660 source_dir = "$(SOURCE_DIR)/";
661 *cp = '\0';
662 tp = tail(np); /* dvw: init tp before 'if' */
663 fprintf(f, "-include %sd\n", tp);
664 fprintf(f, "%so: %s%s%c\n", tp, source_dir, np, och);
665 if (och == 's') {
666 fprintf(f, "\t${S_RULE_0}\n");
667 fprintf(f, "\t${S_RULE_1A}%s%.*s${S_RULE_1B}%s\n",
668 source_dir, (int)(tp-np), np, nl);
669 fprintf(f, "\t${S_RULE_2}%s\n", nl);
670 continue;
671 }
672 extras = "";
673 switch (ftp->f_type) {
674
675 case NORMAL:
676 goto common;
677 break;
678
679 case DRIVER:
680 extras = "_D";
681 goto common;
682 break;
683
684 case PROFILING:
685 if (!profiling)
686 continue;
687 if (COPTS == 0) {
688 fprintf(stderr,
689 "config: COPTS undefined in generic makefile");
690 COPTS = "";
691 }
692 extras = "_P";
693 goto common;
694
695 common:
696 och_upper = och + 'A' - 'a';
697 fprintf(f, "\t${%c_RULE_0%s}\n", och_upper, extras);
698 fprintf(f, "\t${%c_RULE_1A%s}", och_upper, extras);
699 if (ftp->f_extra)
700 fprintf(f, "%s", ftp->f_extra);
701 fprintf(f, "%s%.*s${%c_RULE_1B%s}%s\n",
702 source_dir, (int)(tp-np), np, och_upper, extras, nl);
703
704 /* While we are still using CTF, any build that normally does not support CTF will
705 * a "standard" compile done as well that we can harvest CTF information from; do
706 * that here.
707 */
708 fprintf(f, "\t${%c_CTFRULE_1A%s}", och_upper, extras);
709 if (ftp->f_extra)
710 fprintf(f, "%s", ftp->f_extra);
711 fprintf(f, "%s%.*s${%c_CTFRULE_1B%s}%s\n",
712 source_dir, (int)(tp-np), np, och_upper, extras, nl);
713
714 fprintf(f, "\t${%c_RULE_2%s}%s\n", och_upper, extras, nl);
715 fprintf(f, "\t${%c_CTFRULE_2%s}%s\n", och_upper, extras, nl);
716 fprintf(f, "\t${%c_RULE_3%s}%s\n", och_upper, extras, nl);
717 fprintf(f, "\t${%c_RULE_4A%s}", och_upper, extras);
718 if (ftp->f_extra)
719 fprintf(f, "%s", ftp->f_extra);
720 fprintf(f, "%s%.*s${%c_RULE_4B%s}%s\n",
721 source_dir, (int)(tp-np), np, och_upper, extras, nl);
722 break;
723
724 default:
725 printf("Don't know rules for %s\n", np);
726 break;
727 }
728 *cp = och;
729 }
730 }
731
732 char *
733 allCaps(char *str)
734 {
735 char *cp = str;
736
737 while (*str) {
738 if (islower(*str))
739 *str = toupper(*str);
740 str++;
741 }
742 return (cp);
743 }
744
745 #define OLDSALUTATION "# DO NOT DELETE THIS LINE"
746
747 #define LINESIZE 1024
748 static char makbuf[LINESIZE]; /* one line buffer for makefile */
749
750 void
751 copy_dependencies(FILE *makin, FILE *makout)
752 {
753 int oldlen = (sizeof OLDSALUTATION - 1);
754
755 while (fgets(makbuf, LINESIZE, makin) != NULL) {
756 if (! strncmp(makbuf, OLDSALUTATION, oldlen))
757 break;
758 }
759 while (fgets(makbuf, LINESIZE, makin) != NULL) {
760 if (oldlen != 0)
761 {
762 if (makbuf[0] == '\n')
763 continue;
764 else
765 oldlen = 0;
766 }
767 fputs(makbuf, makout);
768 }
769 }