mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2024-12-27 05:21:08 +01:00
6d41b96fd7
Note that this code is dormant unless the options files exist. Also, parsing of quoted options in the config files is improved. What this allows, is all the options in LINT to be specified to be configured as #defines in a file rather than on the CC command line at kernel build time. This means that 'make depend' will catch dependencies on actual *options*, meaning that you can run 'config' and 'make depend' in complete safety WITHOUT removing the compile directory each time. Unfortunately, this requires a pass over the source to get the individual files to #include the new .h files that would be generated by config. This has a small compile time penalty (appears up to about 2% slower) from a "fresh" build. Of course, you should not be needing to do complete rebuilds very often once this was completed, so it would be an overall win for most people. Since this code is dormant and we've got a lot of other things happening on the kernel tree at the moment (prototypes, devfs, static declarations etc) I am not planning on doing any changes to activate this feature just yet.
210 lines
5.3 KiB
C
210 lines
5.3 KiB
C
/*
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* Copyright (c) 1980, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static char sccsid[] = "@(#)mkheaders.c 8.1 (Berkeley) 6/6/93";
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#endif /* not lint */
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/*
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* Make all the .h files for the optional entries
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*/
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#include <stdio.h>
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#include <ctype.h>
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#include "config.h"
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#include "y.tab.h"
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headers()
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{
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register struct file_list *fl;
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for (fl = ftab; fl != 0; fl = fl->f_next)
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if (fl->f_needs != 0)
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do_count(fl->f_needs, fl->f_needs, 1);
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}
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/*
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* count all the devices of a certain type and recurse to count
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* whatever the device is connected to
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*/
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do_count(dev, hname, search)
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register char *dev, *hname;
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int search;
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{
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register struct device *dp, *mp;
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register int count, hicount;
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/*
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* After this loop, "count" will be the actual number of units,
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* and "hicount" will be the highest unit declared. do_header()
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* must use this higher of these values.
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*/
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for (hicount = count = 0, dp = dtab; dp != 0; dp = dp->d_next)
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if (dp->d_unit != -1 && eq(dp->d_name, dev)) {
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if (dp->d_type == PSEUDO_DEVICE) {
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count =
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dp->d_slave != UNKNOWN ? dp->d_slave : 1;
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break;
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}
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count++;
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/*
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* Allow holes in unit numbering,
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* assumption is unit numbering starts
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* at zero.
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*/
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if (dp->d_unit + 1 > hicount)
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hicount = dp->d_unit + 1;
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if (search) {
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mp = dp->d_conn;
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if (mp != 0 && mp != TO_NEXUS &&
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mp->d_conn != 0 && mp->d_conn != TO_NEXUS) {
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do_count(mp->d_name, hname, 0);
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search = 0;
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}
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}
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}
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do_header(dev, hname, count > hicount ? count : hicount);
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}
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do_header(dev, hname, count)
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char *dev, *hname;
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int count;
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{
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char *file, *name, *inw, *toheader(), *tomacro();
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struct file_list *fl, *fl_head, *tflp;
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FILE *inf, *outf;
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int inc, oldcount;
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file = toheader(hname);
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name = tomacro(dev);
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inf = fopen(file, "r");
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oldcount = -1;
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if (inf == 0) {
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outf = fopen(file, "w");
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if (outf == 0) {
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perror(file);
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exit(1);
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}
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fprintf(outf, "#define %s %d\n", name, count);
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(void) fclose(outf);
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return;
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}
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fl_head = NULL;
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for (;;) {
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char *cp;
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if ((inw = get_word(inf)) == 0 || inw == (char *)EOF)
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break;
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if ((inw = get_word(inf)) == 0 || inw == (char *)EOF)
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break;
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inw = ns(inw);
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cp = get_word(inf);
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if (cp == 0 || cp == (char *)EOF)
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break;
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inc = atoi(cp);
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if (eq(inw, name)) {
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oldcount = inc;
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inc = count;
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}
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cp = get_word(inf);
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if (cp == (char *)EOF)
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break;
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fl = (struct file_list *) malloc(sizeof *fl);
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bzero(fl, sizeof(*fl));
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fl->f_fn = inw; /* malloced */
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fl->f_type = inc;
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fl->f_next = fl_head;
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fl_head = fl;
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}
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(void) fclose(inf);
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if (count == oldcount) {
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for (fl = fl_head; fl != NULL; fl = tflp) {
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tflp = fl->f_next;
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free(fl->f_fn);
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free(fl);
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}
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return;
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}
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if (oldcount == -1) {
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fl = (struct file_list *) malloc(sizeof *fl);
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bzero(fl, sizeof(*fl));
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fl->f_fn = ns(name); /* malloced */
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fl->f_type = count;
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fl->f_next = fl_head;
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fl_head = fl;
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}
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outf = fopen(file, "w");
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if (outf == 0) {
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perror(file);
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exit(1);
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}
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for (fl = fl_head; fl != NULL; fl = tflp) {
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fprintf(outf,
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"#define %s %u\n", fl->f_fn, count ? fl->f_type : 0);
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tflp = fl->f_next;
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free(fl->f_fn);
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free(fl);
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}
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(void) fclose(outf);
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}
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/*
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* convert a dev name to a .h file name
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*/
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char *
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toheader(dev)
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char *dev;
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{
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static char hbuf[80];
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(void) strcpy(hbuf, path(dev));
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(void) strcat(hbuf, ".h");
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return (hbuf);
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}
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/*
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* convert a dev name to a macro name
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*/
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char *tomacro(dev)
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register char *dev;
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{
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static char mbuf[20];
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register char *cp;
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cp = mbuf;
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*cp++ = 'N';
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while (*dev)
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*cp++ = islower(*dev) ? toupper(*dev++) : *dev++;
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*cp++ = 0;
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return (mbuf);
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}
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