xref: /xnu-10063.101.15/SETUP/config/mkmakefile.c (revision 94d3b452840153a99b38a3a9659680b2a006908e)
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, int flags);
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 *
fl_lookup(char * file)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 	}
106 	return 0;
107 }
108 
109 /*
110  * Lookup a file, by final component name.
111  */
112 struct file_list *
fltail_lookup(char * file)113 fltail_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  */
128 struct file_list *
new_fent(void)129 new_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 
148 char    *COPTS;
149 
150 const char *
get_VPATH(void)151 get_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  */
170 void
makefile(void)171 makefile(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;
244 percent:
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  */
280 void
read_files(void)281 read_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 f_flags;
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);
300 openit:
301 	fp = fopenp(VPATH, fname, pname, "r");
302 	if (fp == 0) {
303 		perror(fname);
304 		exit(1);
305 	}
306 next:
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 	f_flags = 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;
364 nextopt:
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 		f_flags |= LIBRARYDEP;
380 		goto nextopt;
381 	}
382 	if (eq(wd, "bound-checks")) {
383 		f_flags |= BOUND_CHECKS;
384 		goto nextopt;
385 	}
386 	if (eq(wd, "bound-checks-soft")) {
387 		if (f_flags & BOUND_CHECKS_DEBUG) {
388 			printf("%s: cannot combine bound-checks-soft and bound-checks-debug\n", fname);
389 			exit(1);
390 		}
391 		f_flags |= BOUND_CHECKS | BOUND_CHECKS_SOFT;
392 		goto nextopt;
393 	}
394 	if (eq(wd, "bound-checks-debug")) {
395 		if (f_flags & BOUND_CHECKS_SOFT) {
396 			printf("%s: cannot combine bound-checks-soft and bound-checks-debug\n", fname);
397 			exit(1);
398 		}
399 		f_flags |= BOUND_CHECKS | BOUND_CHECKS_DEBUG;
400 		goto nextopt;
401 	}
402 	nreqs++;
403 	if (needs == 0 && nreqs == 1) {
404 		needs = ns(wd);
405 	}
406 	if (isdup) {
407 		goto invis;
408 	}
409 	if (options) {
410 		struct opt *lop = 0;
411 		struct device tdev;
412 
413 		/*
414 		 *  Allocate a pseudo-device entry which we will insert into
415 		 *  the device list below.  The flags field is set non-zero to
416 		 *  indicate an internal entry rather than one generated from
417 		 *  the configuration file.  The slave field is set to define
418 		 *  the corresponding symbol as 0 should we fail to find the
419 		 *  option in the option list.
420 		 */
421 		init_dev(&tdev);
422 		tdev.d_name = ns(wd);
423 		tdev.d_type = PSEUDO_DEVICE;
424 		tdev.d_flags++;
425 		tdev.d_slave = 0;
426 
427 		for (op = opt; op; lop = op, op = op->op_next) {
428 			char *od = allCaps(ns(wd));
429 
430 			/*
431 			 *  Found an option which matches the current device
432 			 *  dependency identifier.  Set the slave field to
433 			 *  define the option in the header file.
434 			 */
435 			if (strcmp(op->op_name, od) == 0) {
436 				tdev.d_slave = 1;
437 				if (lop == 0) {
438 					opt = op->op_next;
439 				} else {
440 					lop->op_next = op->op_next;
441 				}
442 				free(op);
443 				op = 0;
444 			}
445 			free(od);
446 			if (op == 0) {
447 				break;
448 			}
449 		}
450 		newdev(&tdev);
451 	}
452 	for (dp = dtab; dp != 0; dp = dp->d_next) {
453 		if (eq(dp->d_name, wd) && (dp->d_type != PSEUDO_DEVICE || dp->d_slave)) {
454 			if (not_option) {
455 				goto invis;     /* dont want file if option present */
456 			} else {
457 				goto nextopt;
458 			}
459 		}
460 	}
461 	if (not_option) {
462 		goto nextopt;           /* want file if option missing */
463 	}
464 	for (op = opt; op != 0; op = op->op_next) {
465 		if (op->op_value == 0 && opteq(op->op_name, wd)) {
466 			if (nreqs == 1) {
467 				free(needs);
468 				needs = 0;
469 			}
470 			goto nextopt;
471 		}
472 	}
473 
474 invis:
475 	while ((wd = get_word(fp)) != 0) {
476 		;
477 	}
478 	if (tp == 0) {
479 		tp = new_fent();
480 	}
481 	tp->f_fn = this;
482 	tp->f_type = INVISIBLE;
483 	tp->f_needs = needs;
484 	tp->f_flags = isdup;
485 	goto next;
486 
487 doneopt:
488 	if (nreqs == 0) {
489 		printf("%s: what is %s optional on?\n",
490 		    fname, this);
491 		exit(1);
492 	}
493 
494 checkdev:
495 	if (wd) {
496 		if (*wd == '|') {
497 			goto getrest;
498 		}
499 		next_word(fp, wd);
500 		while (wd) {
501 			if (eq(wd, "xnu-library")) {
502 				f_flags |= LIBRARYDEP;
503 				next_word(fp, wd);
504 				continue;
505 			}
506 			if (eq(wd, "bound-checks")) {
507 				f_flags |= BOUND_CHECKS;
508 				next_word(fp, wd);
509 				continue;
510 			}
511 			if (eq(wd, "bound-checks-soft")) {
512 				if (f_flags & BOUND_CHECKS_DEBUG) {
513 					printf("%s: cannot combine bound-checks-soft and bound-checks-debug\n", fname);
514 					exit(1);
515 				}
516 				f_flags |= BOUND_CHECKS | BOUND_CHECKS_SOFT;
517 				next_word(fp, wd);
518 				continue;
519 			}
520 			if (eq(wd, "bound-checks-debug")) {
521 				if (f_flags & BOUND_CHECKS_SOFT) {
522 					printf("%s: cannot combine bound-checks-soft and bound-checks-debug\n", fname);
523 					exit(1);
524 				}
525 				f_flags |= BOUND_CHECKS | BOUND_CHECKS_DEBUG;
526 				next_word(fp, wd);
527 				continue;
528 			}
529 
530 			devorprof = wd;
531 			next_word(fp, wd);
532 			break;
533 		}
534 	}
535 
536 save:
537 getrest:
538 	if (wd) {
539 		if (*wd == '|') {
540 			rest = ns(get_rest(fp));
541 		} else {
542 			printf("%s: syntax error describing %s\n",
543 			    fname, this);
544 			exit(1);
545 		}
546 	}
547 	if (eq(devorprof, "profiling-routine") && profiling == 0) {
548 		goto next;
549 	}
550 	if (tp == 0) {
551 		tp = new_fent();
552 	}
553 	tp->f_fn = this;
554 	tp->f_extra = rest;
555 	if (options) {
556 		tp->f_type = INVISIBLE;
557 	} else if (eq(devorprof, "device-driver")) {
558 		tp->f_type = DRIVER;
559 	} else if (eq(devorprof, "profiling-routine")) {
560 		tp->f_type = PROFILING;
561 	} else {
562 		tp->f_type = NORMAL;
563 	}
564 	tp->f_flags = f_flags;
565 	tp->f_needs = needs;
566 	if (pf && pf->f_type == INVISIBLE) {
567 		pf->f_flags = 1;                /* mark as duplicate */
568 	}
569 	goto next;
570 }
571 
572 int
opteq(const char * cp,const char * dp)573 opteq(const char *cp, const char *dp)
574 {
575 	char c, d;
576 
577 	for (;; cp++, dp++) {
578 		if (*cp != *dp) {
579 			c = isupper(*cp) ? tolower(*cp) : *cp;
580 			d = isupper(*dp) ? tolower(*dp) : *dp;
581 			if (c != d) {
582 				return 0;
583 			}
584 		}
585 		if (*cp == 0) {
586 			return 1;
587 		}
588 	}
589 }
590 
591 void
put_source_file_name(FILE * fp,struct file_list * tp)592 put_source_file_name(FILE *fp, struct file_list *tp)
593 {
594 	if ((tp->f_fn[0] == '.') && (tp->f_fn[1] == '/')) {
595 		fprintf(fp, "%s ", tp->f_fn);
596 	} else {
597 		fprintf(fp, "$(SOURCE_DIR)/%s ", tp->f_fn);
598 	}
599 }
600 
601 void
do_objs(FILE * fp,const char * msg,int ext,int flags)602 do_objs(FILE *fp, const char *msg, int ext, int flags)
603 {
604 	struct file_list *tp;
605 	int lpos, len;
606 	char *cp;
607 	char och;
608 	const char *sp;
609 
610 	fprintf(fp, "%s", msg);
611 	lpos = strlen(msg);
612 	for (tp = ftab; tp != 0; tp = tp->f_next) {
613 		if (tp->f_type == INVISIBLE) {
614 			continue;
615 		}
616 
617 		/*
618 		 * Check flags (if any)
619 		 */
620 		if (flags && ((tp->f_flags & flags) != flags)) {
621 			continue;
622 		}
623 
624 		/*
625 		 *	Check for '.o' file in list
626 		 */
627 		cp = tp->f_fn + (len = strlen(tp->f_fn)) - 1;
628 		if (ext != -1 && *cp != ext) {
629 			continue;
630 		} else if (*cp == 'o') {
631 			if (len + lpos > 72) {
632 				lpos = 8;
633 				fprintf(fp, "\\\n\t");
634 			}
635 			put_source_file_name(fp, tp);
636 			fprintf(fp, " ");
637 			lpos += len + 1;
638 			continue;
639 		}
640 		sp = tail(tp->f_fn);
641 		cp = (char *)sp + (len = strlen(sp)) - 1;
642 		och = *cp;
643 		*cp = 'o';
644 		if (len + lpos > 72) {
645 			lpos = 8;
646 			fprintf(fp, "\\\n\t");
647 		}
648 		fprintf(fp, "%s ", sp);
649 		lpos += len + 1;
650 		*cp = och;
651 	}
652 	putc('\n', fp);
653 }
654 
655 void
do_files(FILE * fp,const char * msg,char ext)656 do_files(FILE *fp, const char *msg, char ext)
657 {
658 	struct file_list *tp;
659 	int lpos, len = 0; /* dvw: init to 0 */
660 
661 	fprintf(fp, "%s", msg);
662 	lpos = 8;
663 	for (tp = ftab; tp != 0; tp = tp->f_next) {
664 		if (tp->f_type == INVISIBLE) {
665 			continue;
666 		}
667 		if (tp->f_fn[strlen(tp->f_fn) - 1] != ext) {
668 			continue;
669 		}
670 		/*
671 		 * Always generate a newline.
672 		 * Our Makefile's aren't readable anyway.
673 		 */
674 
675 		lpos = 8;
676 		fprintf(fp, "\\\n\t");
677 		put_source_file_name(fp, tp);
678 		lpos += len + 1;
679 	}
680 	putc('\n', fp);
681 }
682 
683 /*
684  *  Include machine dependent makefile in output
685  */
686 
687 void
do_machdep(FILE * ofp)688 do_machdep(FILE *ofp)
689 {
690 	FILE *ifp;
691 	char pname[BUFSIZ];
692 	char line[BUFSIZ];
693 
694 	(void) sprintf(line, "%s/Makefile.%s", config_directory, machinename);
695 	ifp = fopenp(VPATH, line, pname, "r");
696 	if (ifp == 0) {
697 		perror(line);
698 		exit(1);
699 	}
700 	while (fgets(line, BUFSIZ, ifp) != 0) {
701 		if (profiling && (strncmp(line, "LIBS=", 5) == 0)) {
702 			fprintf(ofp, "LIBS=${LIBS_P}\n");
703 		} else {
704 			fputs(line, ofp);
705 		}
706 	}
707 	fclose(ifp);
708 }
709 
710 const char *
tail(const char * fn)711 tail(const char *fn)
712 {
713 	const char *cp;
714 
715 	cp = rindex(fn, '/');
716 	if (cp == 0) {
717 		return fn;
718 	}
719 	return cp + 1;
720 }
721 
722 /*
723  * Create the makerules for each file
724  * which is part of the system.
725  * Devices are processed with the special c2 option -i
726  * which avoids any problem areas with i/o addressing
727  * (e.g. for the VAX); assembler files are processed by as.
728  */
729 void
do_rules(FILE * f)730 do_rules(FILE *f)
731 {
732 	char *cp;
733 	char *np, och;
734 	const char *tp;
735 	struct file_list *ftp;
736 	const char *extras = ""; /* dvw: init to "" */
737 	char *source_dir;
738 	char och_upper;
739 	const char *nl = "";
740 
741 	for (ftp = ftab; ftp != 0; ftp = ftp->f_next) {
742 		if (ftp->f_type == INVISIBLE) {
743 			continue;
744 		}
745 		cp = (np = ftp->f_fn) + strlen(ftp->f_fn) - 1;
746 		och = *cp;
747 		/*
748 		 *	Don't compile '.o' files
749 		 */
750 		if (och == 'o') {
751 			continue;
752 		}
753 		/*
754 		 *	Determine where sources should come from
755 		 */
756 		if ((np[0] == '.') && (np[1] == '/')) {
757 			source_dir = "";
758 			np += 2;
759 		} else {
760 			source_dir = "$(SOURCE_DIR)/";
761 		}
762 		*cp = '\0';
763 		tp = tail(np);  /* dvw: init tp before 'if' */
764 		fprintf(f, "-include %sd\n", tp);
765 		if (ftp->f_flags & BOUND_CHECKS) {
766 			fprintf(f, "%so_CFLAGS_ADD += ${CFLAGS_BOUND_CHECKS}\n", tp);
767 			if (ftp->f_flags & BOUND_CHECKS_SOFT) {
768 				fprintf(f, "%so_CFLAGS_ADD += ${CFLAGS_BOUND_CHECKS_SOFT}\n", tp);
769 			} else if (ftp->f_flags & BOUND_CHECKS_DEBUG) {
770 				fprintf(f, "%so_CFLAGS_ADD += ${CFLAGS_BOUND_CHECKS_DEBUG}\n", tp);
771 			}
772 		}
773 		fprintf(f, "%so: %s%s%c\n", tp, source_dir, np, och);
774 		if (och == 's') {
775 			fprintf(f, "\t${S_RULE_0}\n");
776 			fprintf(f, "\t${S_RULE_1A} %s%.*s${S_RULE_1B}%s\n",
777 			    source_dir, (int)(tp - np), np, nl);
778 			fprintf(f, "\t${S_RULE_2}%s\n", nl);
779 			continue;
780 		}
781 		extras = "";
782 		switch (ftp->f_type) {
783 		case NORMAL:
784 			goto common;
785 			break;
786 
787 		case DRIVER:
788 			extras = "_D";
789 			goto common;
790 			break;
791 
792 		case PROFILING:
793 			if (!profiling) {
794 				continue;
795 			}
796 			if (COPTS == 0) {
797 				fprintf(stderr,
798 				    "config: COPTS undefined in generic makefile");
799 				COPTS = "";
800 			}
801 			extras = "_P";
802 			goto common;
803 
804 common:
805 			och_upper = och + 'A' - 'a';
806 			fprintf(f, "\t${%c_RULE_0%s}\n", och_upper, extras);
807 			fprintf(f, "\t${%c_RULE_1A%s}", och_upper, extras);
808 			if (ftp->f_extra) {
809 				fprintf(f, "%s", ftp->f_extra);
810 			}
811 			fprintf(f, " %s%.*s${%c_RULE_1B%s}%s\n",
812 			    source_dir, (int)(tp - np), np, och_upper, extras, nl);
813 
814 			fprintf(f, "\t${%c_RULE_2%s}%s\n", och_upper, extras, nl);
815 			fprintf(f, "\t${%c_RULE_3%s}%s\n", och_upper, extras, nl);
816 			fprintf(f, "\t$(if ${%c_RULE_4A%s},${%c_RULE_4A%s}",
817 			    och_upper, extras, och_upper, extras);
818 			if (ftp->f_extra) {
819 				fprintf(f, "%s", ftp->f_extra);
820 			}
821 			fprintf(f, "%s%.*s${%c_RULE_4B%s}%s)\n",
822 			    source_dir, (int)(tp - np), np, och_upper, extras, nl);
823 			break;
824 
825 		default:
826 			printf("Don't know rules for %s\n", np);
827 			break;
828 		}
829 		*cp = och;
830 	}
831 }
832 
833 char *
allCaps(char * str)834 allCaps(char *str)
835 {
836 	char *cp = str;
837 
838 	while (*str) {
839 		if (islower(*str)) {
840 			*str = toupper(*str);
841 		}
842 		str++;
843 	}
844 	return cp;
845 }
846 
847 #define OLDSALUTATION "# DO NOT DELETE THIS LINE"
848 
849 #define LINESIZE 1024
850 static char makbuf[LINESIZE];           /* one line buffer for makefile */
851 
852 void
copy_dependencies(FILE * makin,FILE * makout)853 copy_dependencies(FILE *makin, FILE *makout)
854 {
855 	int oldlen = (sizeof OLDSALUTATION - 1);
856 
857 	while (fgets(makbuf, LINESIZE, makin) != NULL) {
858 		if (!strncmp(makbuf, OLDSALUTATION, oldlen)) {
859 			break;
860 		}
861 	}
862 	while (fgets(makbuf, LINESIZE, makin) != NULL) {
863 		if (oldlen != 0) {
864 			if (makbuf[0] == '\n') {
865 				continue;
866 			} else {
867 				oldlen = 0;
868 			}
869 		}
870 		fputs(makbuf, makout);
871 	}
872 }
873