]> git.saurik.com Git - apple/xnu.git/blame_incremental - SETUP/config/mkmakefile.c
xnu-7195.81.3.tar.gz
[apple/xnu.git] / SETUP / config / mkmakefile.c
... / ...
CommitLineData
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
52static 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
67void read_files(void);
68void do_objs(FILE *fp, const char *msg, int ext, int flags);
69void do_files(FILE *fp, const char *msg, char ext);
70void do_machdep(FILE *ofp);
71void do_rules(FILE *f);
72void copy_dependencies(FILE *makin, FILE *makout);
73
74struct file_list *fl_lookup(char *file);
75struct file_list *fltail_lookup(char *file);
76struct file_list *new_fent(void);
77
78void 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
89static struct file_list *fcur;
90const char *tail(const char *fn);
91char *allCaps(char *str);
92
93/*
94 * Lookup a file, by name.
95 */
96struct file_list *
97fl_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 }
106 return 0;
107}
108
109/*
110 * Lookup a file, by final component name.
111 */
112struct file_list *
113fltail_lookup(char *file)
114{
115 struct file_list *fp;
116
117 for (fp = ftab; fp != 0; fp = fp->f_next) {
118 if (eq(tail(fp->f_fn), tail(file))) {
119 return fp;
120 }
121 }
122 return 0;
123}
124
125/*
126 * Make a new file list entry
127 */
128struct file_list *
129new_fent(void)
130{
131 struct file_list *fp;
132
133 fp = (struct file_list *) malloc(sizeof *fp);
134 fp->f_needs = 0;
135 fp->f_next = 0;
136 fp->f_flags = 0;
137 fp->f_type = 0;
138 fp->f_extra = (char *) 0;
139 if (fcur == 0) {
140 fcur = ftab = fp;
141 } else {
142 fcur->f_next = fp;
143 }
144 fcur = fp;
145 return fp;
146}
147
148char *COPTS;
149
150const char *
151get_VPATH(void)
152{
153 static char *vpath = NULL;
154
155 if ((vpath == NULL) &&
156 ((vpath = getenv("VPATH")) != NULL) &&
157 (*vpath != ':')) {
158 char *buf = malloc((unsigned)(strlen(vpath) + 2));
159
160 vpath = strcat(strcpy(buf, ":"), vpath);
161 }
162
163 return vpath ? vpath : "";
164}
165
166
167/*
168 * Build the makefile from the skeleton
169 */
170void
171makefile(void)
172{
173 FILE *ifp, *ofp;
174 FILE *dfp;
175 char pname[BUFSIZ];
176 char line[BUFSIZ];
177 struct opt *op;
178
179 read_files();
180 (void) sprintf(line, "%s/Makefile.template", config_directory);
181 ifp = fopenp(VPATH, line, pname, "r");
182 if (ifp == 0) {
183 perror(line);
184 exit(1);
185 }
186 dfp = fopen(path("Makefile"), "r");
187 rename(path("Makefile"), path("Makefile.old"));
188 unlink(path("Makefile.old"));
189 ofp = fopen(path("Makefile"), "w");
190 if (ofp == 0) {
191 perror(path("Makefile"));
192 exit(1);
193 }
194 fprintf(ofp, "SOURCE_DIR=%s\n", source_directory);
195
196 fprintf(ofp, "export CONFIG_DEFINES =");
197 if (profiling) {
198 fprintf(ofp, " -DGPROF");
199 }
200
201 for (op = opt; op; op = op->op_next) {
202 if (op->op_value) {
203 fprintf(ofp, " -D%s=\"%s\"", op->op_name, op->op_value);
204 } else {
205 fprintf(ofp, " -D%s", op->op_name);
206 }
207 }
208 fprintf(ofp, "\n");
209 for (op = mkopt; op; op = op->op_next) {
210 if (op->op_value) {
211 fprintf(ofp, "%s=%s\n", op->op_name, op->op_value);
212 } else {
213 fprintf(ofp, "%s\n", op->op_name);
214 }
215 }
216
217 while (fgets(line, BUFSIZ, ifp) != 0) {
218 if (*line == '%') {
219 goto percent;
220 }
221 if (profiling && strncmp(line, "COPTS=", 6) == 0) {
222 char *cp;
223 fprintf(ofp,
224 "GPROF.EX=$(SOURCE_DIR)/machdep/%s/gmon.ex\n", machinename);
225 cp = index(line, '\n');
226 if (cp) {
227 *cp = 0;
228 }
229 cp = line + 6;
230 while (*cp && (*cp == ' ' || *cp == '\t')) {
231 cp++;
232 }
233 COPTS = malloc((unsigned)(strlen(cp) + 1));
234 if (COPTS == 0) {
235 printf("config: out of memory\n");
236 exit(1);
237 }
238 strcpy(COPTS, cp);
239 fprintf(ofp, "%s -pg\n", line);
240 continue;
241 }
242 fprintf(ofp, "%s", line);
243 continue;
244percent:
245 if (eq(line, "%OBJS\n")) {
246 do_objs(ofp, "OBJS=", -1, 0);
247 } else if (eq(line, "%LIBOBJS\n")) {
248 do_objs(ofp, "LIBOBJS=", -1, LIBRARYDEP);
249 } else if (eq(line, "%CFILES\n")) {
250 do_files(ofp, "CFILES=", 'c');
251 do_objs(ofp, "COBJS=", 'c', 0);
252 } else if (eq(line, "%CXXFILES\n")) {
253 do_files(ofp, "CXXFILES=", 'p');
254 do_objs(ofp, "CXXOBJS=", 'p', 0);
255 } else if (eq(line, "%SFILES\n")) {
256 do_files(ofp, "SFILES=", 's');
257 do_objs(ofp, "SOBJS=", 's', 0);
258 } else if (eq(line, "%MACHDEP\n")) {
259 do_machdep(ofp);
260 } else if (eq(line, "%RULES\n")) {
261 do_rules(ofp);
262 } else {
263 fprintf(stderr,
264 "Unknown %% construct in generic makefile: %s",
265 line);
266 }
267 }
268 if (dfp != NULL) {
269 copy_dependencies(dfp, ofp);
270 (void) fclose(dfp);
271 }
272 (void) fclose(ifp);
273 (void) fclose(ofp);
274}
275
276/*
277 * Read in the information about files used in making the system.
278 * Store it in the ftab linked list.
279 */
280void
281read_files(void)
282{
283 FILE *fp;
284 struct file_list *tp, *pf;
285 struct device *dp;
286 struct opt *op;
287 const char *wd;
288 char *this, *needs;
289 const char *devorprof;
290 int options;
291 int not_option;
292 int for_xnu_lib;
293 char pname[BUFSIZ];
294 char fname[1024];
295 char *rest = (char *) 0;
296 int nreqs, first = 1, isdup;
297
298 ftab = 0;
299 (void) sprintf(fname, "%s/files", config_directory);
300openit:
301 fp = fopenp(VPATH, fname, pname, "r");
302 if (fp == 0) {
303 perror(fname);
304 exit(1);
305 }
306next:
307 options = 0;
308 rest = (char *) 0;
309 /*
310 * filename [ standard | optional ]
311 * [ dev* | profiling-routine ] [ device-driver]
312 */
313 wd = get_word(fp);
314 if (wd == (char *)EOF) {
315 (void) fclose(fp);
316 if (first == 1) {
317 (void) sprintf(fname, "%s/files.%s", config_directory, machinename);
318 first++;
319 goto openit;
320 }
321 return;
322 }
323 if (wd == 0) {
324 goto next;
325 }
326 /*
327 * Allow comment lines beginning witha '#' character.
328 */
329 if (*wd == '#') {
330 while ((wd = get_word(fp)) && wd != (char *)EOF) {
331 ;
332 }
333 goto next;
334 }
335
336 this = ns(wd);
337 next_word(fp, wd);
338 if (wd == 0) {
339 printf("%s: No type for %s.\n",
340 fname, this);
341 exit(1);
342 }
343 if ((pf = fl_lookup(this)) && (pf->f_type != INVISIBLE || pf->f_flags)) {
344 isdup = 1;
345 } else {
346 isdup = 0;
347 }
348 tp = 0;
349 nreqs = 0;
350 devorprof = "";
351 needs = 0;
352 for_xnu_lib = 0;
353 if (eq(wd, "standard")) {
354 goto checkdev;
355 }
356 if (!eq(wd, "optional")) {
357 printf("%s: %s must be optional or standard\n", fname, this);
358 exit(1);
359 }
360 if (strncmp(this, "OPTIONS/", 8) == 0) {
361 options++;
362 }
363 not_option = 0;
364nextopt:
365 next_word(fp, wd);
366 if (wd == 0) {
367 goto doneopt;
368 }
369 if (eq(wd, "not")) {
370 not_option = !not_option;
371 goto nextopt;
372 }
373 devorprof = wd;
374 if (eq(wd, "device-driver") || eq(wd, "profiling-routine")) {
375 next_word(fp, wd);
376 goto save;
377 }
378 if (eq(wd, "xnu-library")) {
379 for_xnu_lib = 1;
380 goto nextopt;
381 }
382 nreqs++;
383 if (needs == 0 && nreqs == 1) {
384 needs = ns(wd);
385 }
386 if (isdup) {
387 goto invis;
388 }
389 if (options) {
390 struct opt *lop = 0;
391 struct device tdev;
392
393 /*
394 * Allocate a pseudo-device entry which we will insert into
395 * the device list below. The flags field is set non-zero to
396 * indicate an internal entry rather than one generated from
397 * the configuration file. The slave field is set to define
398 * the corresponding symbol as 0 should we fail to find the
399 * option in the option list.
400 */
401 init_dev(&tdev);
402 tdev.d_name = ns(wd);
403 tdev.d_type = PSEUDO_DEVICE;
404 tdev.d_flags++;
405 tdev.d_slave = 0;
406
407 for (op = opt; op; lop = op, op = op->op_next) {
408 char *od = allCaps(ns(wd));
409
410 /*
411 * Found an option which matches the current device
412 * dependency identifier. Set the slave field to
413 * define the option in the header file.
414 */
415 if (strcmp(op->op_name, od) == 0) {
416 tdev.d_slave = 1;
417 if (lop == 0) {
418 opt = op->op_next;
419 } else {
420 lop->op_next = op->op_next;
421 }
422 free(op);
423 op = 0;
424 }
425 free(od);
426 if (op == 0) {
427 break;
428 }
429 }
430 newdev(&tdev);
431 }
432 for (dp = dtab; dp != 0; dp = dp->d_next) {
433 if (eq(dp->d_name, wd) && (dp->d_type != PSEUDO_DEVICE || dp->d_slave)) {
434 if (not_option) {
435 goto invis; /* dont want file if option present */
436 } else {
437 goto nextopt;
438 }
439 }
440 }
441 if (not_option) {
442 goto nextopt; /* want file if option missing */
443 }
444 for (op = opt; op != 0; op = op->op_next) {
445 if (op->op_value == 0 && opteq(op->op_name, wd)) {
446 if (nreqs == 1) {
447 free(needs);
448 needs = 0;
449 }
450 goto nextopt;
451 }
452 }
453
454invis:
455 while ((wd = get_word(fp)) != 0) {
456 ;
457 }
458 if (tp == 0) {
459 tp = new_fent();
460 }
461 tp->f_fn = this;
462 tp->f_type = INVISIBLE;
463 tp->f_needs = needs;
464 tp->f_flags = isdup;
465 goto next;
466
467doneopt:
468 if (nreqs == 0) {
469 printf("%s: what is %s optional on?\n",
470 fname, this);
471 exit(1);
472 }
473
474checkdev:
475 if (wd) {
476 if (*wd == '|') {
477 goto getrest;
478 }
479 next_word(fp, wd);
480 if (wd && eq(wd, "xnu-library")) {
481 for_xnu_lib = 1;
482 next_word(fp, wd);
483 }
484 if (wd) {
485 devorprof = wd;
486 next_word(fp, wd);
487 }
488 }
489
490save:
491getrest:
492 if (wd) {
493 if (*wd == '|') {
494 rest = ns(get_rest(fp));
495 } else {
496 printf("%s: syntax error describing %s\n",
497 fname, this);
498 exit(1);
499 }
500 }
501 if (eq(devorprof, "profiling-routine") && profiling == 0) {
502 goto next;
503 }
504 if (tp == 0) {
505 tp = new_fent();
506 }
507 tp->f_fn = this;
508 tp->f_extra = rest;
509 if (options) {
510 tp->f_type = INVISIBLE;
511 } else if (eq(devorprof, "device-driver")) {
512 tp->f_type = DRIVER;
513 } else if (eq(devorprof, "profiling-routine")) {
514 tp->f_type = PROFILING;
515 } else {
516 tp->f_type = NORMAL;
517 }
518 tp->f_flags = 0;
519 tp->f_needs = needs;
520 if (pf && pf->f_type == INVISIBLE) {
521 pf->f_flags = 1; /* mark as duplicate */
522 }
523 if (for_xnu_lib) {
524 tp->f_flags |= LIBRARYDEP;
525 }
526 goto next;
527}
528
529int
530opteq(const char *cp, const char *dp)
531{
532 char c, d;
533
534 for (;; cp++, dp++) {
535 if (*cp != *dp) {
536 c = isupper(*cp) ? tolower(*cp) : *cp;
537 d = isupper(*dp) ? tolower(*dp) : *dp;
538 if (c != d) {
539 return 0;
540 }
541 }
542 if (*cp == 0) {
543 return 1;
544 }
545 }
546}
547
548void
549put_source_file_name(FILE *fp, struct file_list *tp)
550{
551 if ((tp->f_fn[0] == '.') && (tp->f_fn[1] == '/')) {
552 fprintf(fp, "%s ", tp->f_fn);
553 } else {
554 fprintf(fp, "$(SOURCE_DIR)/%s ", tp->f_fn);
555 }
556}
557
558void
559do_objs(FILE *fp, const char *msg, int ext, int flags)
560{
561 struct file_list *tp;
562 int lpos, len;
563 char *cp;
564 char och;
565 const char *sp;
566
567 fprintf(fp, "%s", msg);
568 lpos = strlen(msg);
569 for (tp = ftab; tp != 0; tp = tp->f_next) {
570 if (tp->f_type == INVISIBLE) {
571 continue;
572 }
573
574 /*
575 * Check flags (if any)
576 */
577 if (flags && ((tp->f_flags & flags) != flags)) {
578 continue;
579 }
580
581 /*
582 * Check for '.o' file in list
583 */
584 cp = tp->f_fn + (len = strlen(tp->f_fn)) - 1;
585 if (ext != -1 && *cp != ext) {
586 continue;
587 } else if (*cp == 'o') {
588 if (len + lpos > 72) {
589 lpos = 8;
590 fprintf(fp, "\\\n\t");
591 }
592 put_source_file_name(fp, tp);
593 fprintf(fp, " ");
594 lpos += len + 1;
595 continue;
596 }
597 sp = tail(tp->f_fn);
598 cp = (char *)sp + (len = strlen(sp)) - 1;
599 och = *cp;
600 *cp = 'o';
601 if (len + lpos > 72) {
602 lpos = 8;
603 fprintf(fp, "\\\n\t");
604 }
605 fprintf(fp, "%s ", sp);
606 lpos += len + 1;
607 *cp = och;
608 }
609 putc('\n', fp);
610}
611
612void
613do_files(FILE *fp, const char *msg, char ext)
614{
615 struct file_list *tp;
616 int lpos, len = 0; /* dvw: init to 0 */
617
618 fprintf(fp, "%s", msg);
619 lpos = 8;
620 for (tp = ftab; tp != 0; tp = tp->f_next) {
621 if (tp->f_type == INVISIBLE) {
622 continue;
623 }
624 if (tp->f_fn[strlen(tp->f_fn) - 1] != ext) {
625 continue;
626 }
627 /*
628 * Always generate a newline.
629 * Our Makefile's aren't readable anyway.
630 */
631
632 lpos = 8;
633 fprintf(fp, "\\\n\t");
634 put_source_file_name(fp, tp);
635 lpos += len + 1;
636 }
637 putc('\n', fp);
638}
639
640/*
641 * Include machine dependent makefile in output
642 */
643
644void
645do_machdep(FILE *ofp)
646{
647 FILE *ifp;
648 char pname[BUFSIZ];
649 char line[BUFSIZ];
650
651 (void) sprintf(line, "%s/Makefile.%s", config_directory, machinename);
652 ifp = fopenp(VPATH, line, pname, "r");
653 if (ifp == 0) {
654 perror(line);
655 exit(1);
656 }
657 while (fgets(line, BUFSIZ, ifp) != 0) {
658 if (profiling && (strncmp(line, "LIBS=", 5) == 0)) {
659 fprintf(ofp, "LIBS=${LIBS_P}\n");
660 } else {
661 fputs(line, ofp);
662 }
663 }
664 fclose(ifp);
665}
666
667const char *
668tail(const char *fn)
669{
670 const char *cp;
671
672 cp = rindex(fn, '/');
673 if (cp == 0) {
674 return fn;
675 }
676 return cp + 1;
677}
678
679/*
680 * Create the makerules for each file
681 * which is part of the system.
682 * Devices are processed with the special c2 option -i
683 * which avoids any problem areas with i/o addressing
684 * (e.g. for the VAX); assembler files are processed by as.
685 */
686void
687do_rules(FILE *f)
688{
689 char *cp;
690 char *np, och;
691 const char *tp;
692 struct file_list *ftp;
693 const char *extras = ""; /* dvw: init to "" */
694 char *source_dir;
695 char och_upper;
696 const char *nl = "";
697
698 for (ftp = ftab; ftp != 0; ftp = ftp->f_next) {
699 if (ftp->f_type == INVISIBLE) {
700 continue;
701 }
702 cp = (np = ftp->f_fn) + strlen(ftp->f_fn) - 1;
703 och = *cp;
704 /*
705 * Don't compile '.o' files
706 */
707 if (och == 'o') {
708 continue;
709 }
710 /*
711 * Determine where sources should come from
712 */
713 if ((np[0] == '.') && (np[1] == '/')) {
714 source_dir = "";
715 np += 2;
716 } else {
717 source_dir = "$(SOURCE_DIR)/";
718 }
719 *cp = '\0';
720 tp = tail(np); /* dvw: init tp before 'if' */
721 fprintf(f, "-include %sd\n", tp);
722 fprintf(f, "%so: %s%s%c\n", tp, source_dir, np, och);
723 if (och == 's') {
724 fprintf(f, "\t${S_RULE_0}\n");
725 fprintf(f, "\t${S_RULE_1A}%s%.*s${S_RULE_1B}%s\n",
726 source_dir, (int)(tp - np), np, nl);
727 fprintf(f, "\t${S_RULE_2}%s\n", nl);
728 continue;
729 }
730 extras = "";
731 switch (ftp->f_type) {
732 case NORMAL:
733 goto common;
734 break;
735
736 case DRIVER:
737 extras = "_D";
738 goto common;
739 break;
740
741 case PROFILING:
742 if (!profiling) {
743 continue;
744 }
745 if (COPTS == 0) {
746 fprintf(stderr,
747 "config: COPTS undefined in generic makefile");
748 COPTS = "";
749 }
750 extras = "_P";
751 goto common;
752
753common:
754 och_upper = och + 'A' - 'a';
755 fprintf(f, "\t${%c_RULE_0%s}\n", och_upper, extras);
756 fprintf(f, "\t${%c_RULE_1A%s}", och_upper, extras);
757 if (ftp->f_extra) {
758 fprintf(f, "%s", ftp->f_extra);
759 }
760 fprintf(f, "%s%.*s${%c_RULE_1B%s}%s\n",
761 source_dir, (int)(tp - np), np, och_upper, extras, nl);
762
763 fprintf(f, "\t${%c_RULE_2%s}%s\n", och_upper, extras, nl);
764 fprintf(f, "\t${%c_RULE_3%s}%s\n", och_upper, extras, nl);
765 fprintf(f, "\t$(if ${%c_RULE_4A%s},${%c_RULE_4A%s}",
766 och_upper, extras, och_upper, extras);
767 if (ftp->f_extra) {
768 fprintf(f, "%s", ftp->f_extra);
769 }
770 fprintf(f, "%s%.*s${%c_RULE_4B%s}%s)\n",
771 source_dir, (int)(tp - np), np, och_upper, extras, nl);
772 break;
773
774 default:
775 printf("Don't know rules for %s\n", np);
776 break;
777 }
778 *cp = och;
779 }
780}
781
782char *
783allCaps(char *str)
784{
785 char *cp = str;
786
787 while (*str) {
788 if (islower(*str)) {
789 *str = toupper(*str);
790 }
791 str++;
792 }
793 return cp;
794}
795
796#define OLDSALUTATION "# DO NOT DELETE THIS LINE"
797
798#define LINESIZE 1024
799static char makbuf[LINESIZE]; /* one line buffer for makefile */
800
801void
802copy_dependencies(FILE *makin, FILE *makout)
803{
804 int oldlen = (sizeof OLDSALUTATION - 1);
805
806 while (fgets(makbuf, LINESIZE, makin) != NULL) {
807 if (!strncmp(makbuf, OLDSALUTATION, oldlen)) {
808 break;
809 }
810 }
811 while (fgets(makbuf, LINESIZE, makin) != NULL) {
812 if (oldlen != 0) {
813 if (makbuf[0] == '\n') {
814 continue;
815 } else {
816 oldlen = 0;
817 }
818 }
819 fputs(makbuf, makout);
820 }
821}