freebsd-dev/usr.sbin/config/mkoptions.c

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/*
* Copyright (c) 1995 Peter Wemm
* Copyright (c) 1980, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
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#if 0
static char sccsid[] = "@(#)mkheaders.c 8.1 (Berkeley) 6/6/93";
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#endif
static const char rcsid[] =
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"$FreeBSD$";
#endif /* not lint */
/*
* Make all the .h files for the optional entries
*/
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#include <ctype.h>
#include <err.h>
#include <stdio.h>
#include <string.h>
#include <sys/param.h>
#include "config.h"
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#include "y.tab.h"
static struct users {
int u_default;
int u_min;
int u_max;
} users= { 8, 2, 512 };
Borrow phk's axe and apply the next stage of config(8)'s evolution. Use Warner Losh's "hint" driver to decode ascii strings to fill the resource table at boot time. config(8) no longer generates an ioconf.c table - ie: the configuration no longer has to be compiled into the kernel. You can reconfigure your isa devices with the likes of this at loader(8) time: set hint.ed.0.port=0x320 userconfig will be rewritten to use this style interface one day and will move to /boot/userconfig.4th or something like that. It is still possible to statically compile in a set of hints into a kernel if you do not wish to use loader(8). See the "hints" directive in GENERIC as an example. All device wiring has been moved out of config(8). There is a set of helper scripts (see i386/conf/gethints.pl, and the same for alpha and pc98) that extract the 'at isa? port foo irq bar' from the old files and produces a hints file. If you install this file as /boot/device.hints (and update /boot/defaults/loader.conf - You can do a build/install in sys/boot) then loader will load it automatically for you. You can also compile in the hints directly with: hints "device.hints" as well. There are a few things that I'm not too happy with yet. Under this scheme, things like LINT would no longer be useful as "documentation" of settings. I have renamed this file to 'NOTES' and stored the example hints strings in it. However... this is not something that config(8) understands, so there is a script that extracts the build-specific data from the documentation file (NOTES) to produce a LINT that can be config'ed and built. A stack of man4 pages will need updating. :-/ Also, since there is no longer a difference between 'device' and 'pseudo-device' I collapsed the two together, and the resulting 'device' takes a 'number of units' for devices that still have it statically allocated. eg: 'device fe 4' will compile the fe driver with NFE set to 4. You can then set hints for 4 units (0 - 3). Also note that 'device fe0' will be interpreted as "zero units of 'fe'" which would be bad, so there is a config warning for this. This is only needed for old drivers that still have static limits on numbers of units. All the statically limited drivers that I could find were marked. Please exercise EXTREME CAUTION when transitioning! Moral support by: phk, msmith, dfr, asmodai, imp, and others
2000-06-13 22:28:50 +00:00
static char *lower(char *);
static void read_options(void);
static void do_option(char *);
static char *tooption(char *);
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void
Borrow phk's axe and apply the next stage of config(8)'s evolution. Use Warner Losh's "hint" driver to decode ascii strings to fill the resource table at boot time. config(8) no longer generates an ioconf.c table - ie: the configuration no longer has to be compiled into the kernel. You can reconfigure your isa devices with the likes of this at loader(8) time: set hint.ed.0.port=0x320 userconfig will be rewritten to use this style interface one day and will move to /boot/userconfig.4th or something like that. It is still possible to statically compile in a set of hints into a kernel if you do not wish to use loader(8). See the "hints" directive in GENERIC as an example. All device wiring has been moved out of config(8). There is a set of helper scripts (see i386/conf/gethints.pl, and the same for alpha and pc98) that extract the 'at isa? port foo irq bar' from the old files and produces a hints file. If you install this file as /boot/device.hints (and update /boot/defaults/loader.conf - You can do a build/install in sys/boot) then loader will load it automatically for you. You can also compile in the hints directly with: hints "device.hints" as well. There are a few things that I'm not too happy with yet. Under this scheme, things like LINT would no longer be useful as "documentation" of settings. I have renamed this file to 'NOTES' and stored the example hints strings in it. However... this is not something that config(8) understands, so there is a script that extracts the build-specific data from the documentation file (NOTES) to produce a LINT that can be config'ed and built. A stack of man4 pages will need updating. :-/ Also, since there is no longer a difference between 'device' and 'pseudo-device' I collapsed the two together, and the resulting 'device' takes a 'number of units' for devices that still have it statically allocated. eg: 'device fe 4' will compile the fe driver with NFE set to 4. You can then set hints for 4 units (0 - 3). Also note that 'device fe0' will be interpreted as "zero units of 'fe'" which would be bad, so there is a config warning for this. This is only needed for old drivers that still have static limits on numbers of units. All the statically limited drivers that I could find were marked. Please exercise EXTREME CAUTION when transitioning! Moral support by: phk, msmith, dfr, asmodai, imp, and others
2000-06-13 22:28:50 +00:00
options(void)
{
char buf[40];
struct cputype *cp;
struct opt_list *ol;
struct opt *op;
/* Fake the cpu types as options. */
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SLIST_FOREACH(cp, &cputype, cpu_next) {
op = (struct opt *)malloc(sizeof(*op));
memset(op, 0, sizeof(*op));
op->op_name = ns(cp->cpu_name);
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SLIST_INSERT_HEAD(&opt, op, op_next);
}
if (maxusers == 0) {
/* printf("maxusers not specified; will auto-size\n"); */
} else if (maxusers < users.u_min) {
printf("minimum of %d maxusers assumed\n", users.u_min);
maxusers = users.u_min;
} else if (maxusers > users.u_max)
printf("warning: maxusers > %d (%d)\n", users.u_max, maxusers);
/* Fake MAXUSERS as an option. */
op = (struct opt *)malloc(sizeof(*op));
memset(op, 0, sizeof(*op));
op->op_name = ns("MAXUSERS");
snprintf(buf, sizeof(buf), "%d", maxusers);
op->op_value = ns(buf);
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SLIST_INSERT_HEAD(&opt, op, op_next);
read_options();
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SLIST_FOREACH(ol, &otab, o_next)
do_option(ol->o_name);
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SLIST_FOREACH(op, &opt, op_next) {
if (!op->op_ownfile && strncmp(op->op_name, "DEV_", 4)) {
printf("%s: unknown option \"%s\"\n",
PREFIX, op->op_name);
exit(1);
}
}
}
/*
* Generate an <options>.h file
*/
static void
Borrow phk's axe and apply the next stage of config(8)'s evolution. Use Warner Losh's "hint" driver to decode ascii strings to fill the resource table at boot time. config(8) no longer generates an ioconf.c table - ie: the configuration no longer has to be compiled into the kernel. You can reconfigure your isa devices with the likes of this at loader(8) time: set hint.ed.0.port=0x320 userconfig will be rewritten to use this style interface one day and will move to /boot/userconfig.4th or something like that. It is still possible to statically compile in a set of hints into a kernel if you do not wish to use loader(8). See the "hints" directive in GENERIC as an example. All device wiring has been moved out of config(8). There is a set of helper scripts (see i386/conf/gethints.pl, and the same for alpha and pc98) that extract the 'at isa? port foo irq bar' from the old files and produces a hints file. If you install this file as /boot/device.hints (and update /boot/defaults/loader.conf - You can do a build/install in sys/boot) then loader will load it automatically for you. You can also compile in the hints directly with: hints "device.hints" as well. There are a few things that I'm not too happy with yet. Under this scheme, things like LINT would no longer be useful as "documentation" of settings. I have renamed this file to 'NOTES' and stored the example hints strings in it. However... this is not something that config(8) understands, so there is a script that extracts the build-specific data from the documentation file (NOTES) to produce a LINT that can be config'ed and built. A stack of man4 pages will need updating. :-/ Also, since there is no longer a difference between 'device' and 'pseudo-device' I collapsed the two together, and the resulting 'device' takes a 'number of units' for devices that still have it statically allocated. eg: 'device fe 4' will compile the fe driver with NFE set to 4. You can then set hints for 4 units (0 - 3). Also note that 'device fe0' will be interpreted as "zero units of 'fe'" which would be bad, so there is a config warning for this. This is only needed for old drivers that still have static limits on numbers of units. All the statically limited drivers that I could find were marked. Please exercise EXTREME CAUTION when transitioning! Moral support by: phk, msmith, dfr, asmodai, imp, and others
2000-06-13 22:28:50 +00:00
do_option(char *name)
{
char *file, *inw;
const char *basefile;
struct opt_list *ol;
2003-02-15 02:26:13 +00:00
struct opt *op;
struct opt_head op_head;
FILE *inf, *outf;
char *value;
char *oldvalue;
int seen;
int tidy;
file = tooption(name);
/*
* Check to see if the option was specified..
*/
value = NULL;
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SLIST_FOREACH(op, &opt, op_next) {
if (eq(name, op->op_name)) {
oldvalue = value;
value = op->op_value;
if (value == NULL)
value = ns("1");
if (oldvalue != NULL && !eq(value, oldvalue))
printf(
"%s: option \"%s\" redefined from %s to %s\n",
PREFIX, op->op_name, oldvalue,
value);
op->op_ownfile++;
}
}
remember(file);
inf = fopen(file, "r");
if (inf == 0) {
outf = fopen(file, "w");
1997-09-15 06:37:10 +00:00
if (outf == 0)
err(1, "%s", file);
/* was the option in the config file? */
if (value) {
fprintf(outf, "#define %s %s\n", name, value);
} /* else empty file */
(void) fclose(outf);
return;
}
basefile = "";
2003-02-15 02:26:13 +00:00
SLIST_FOREACH(ol, &otab, o_next)
if (eq(name, ol->o_name)) {
basefile = ol->o_file;
break;
}
oldvalue = NULL;
2003-02-15 02:26:13 +00:00
SLIST_INIT(&op_head);
seen = 0;
tidy = 0;
for (;;) {
char *cp;
char *invalue;
/* get the #define */
if ((inw = get_word(inf)) == 0 || inw == (char *)EOF)
break;
/* get the option name */
if ((inw = get_word(inf)) == 0 || inw == (char *)EOF)
break;
inw = ns(inw);
/* get the option value */
if ((cp = get_word(inf)) == 0 || cp == (char *)EOF)
break;
/* option value */
invalue = ns(cp); /* malloced */
if (eq(inw, name)) {
oldvalue = invalue;
invalue = value;
seen++;
}
2003-02-15 02:26:13 +00:00
SLIST_FOREACH(ol, &otab, o_next)
if (eq(inw, ol->o_name))
break;
if (!eq(inw, name) && !ol) {
printf("WARNING: unknown option `%s' removed from %s\n",
inw, file);
tidy++;
} else if (ol != NULL && !eq(basefile, ol->o_file)) {
printf("WARNING: option `%s' moved from %s to %s\n",
inw, basefile, ol->o_file);
tidy++;
} else {
op = (struct opt *) malloc(sizeof *op);
bzero(op, sizeof(*op));
op->op_name = inw;
op->op_value = invalue;
2003-02-15 02:26:13 +00:00
SLIST_INSERT_HEAD(&op_head, op, op_next);
}
/* EOL? */
cp = get_word(inf);
if (cp == (char *)EOF)
break;
}
(void) fclose(inf);
if (!tidy && ((value == NULL && oldvalue == NULL) ||
(value && oldvalue && eq(value, oldvalue)))) {
2003-02-15 02:26:13 +00:00
while (!SLIST_EMPTY(&op_head)) {
op = SLIST_FIRST(&op_head);
SLIST_REMOVE_HEAD(&op_head, op_next);
free(op->op_name);
free(op->op_value);
free(op);
}
return;
}
if (value && !seen) {
/* New option appears */
op = (struct opt *) malloc(sizeof *op);
bzero(op, sizeof(*op));
op->op_name = ns(name);
op->op_value = value ? ns(value) : NULL;
2003-02-15 02:26:13 +00:00
SLIST_INSERT_HEAD(&op_head, op, op_next);
}
outf = fopen(file, "w");
1997-09-15 06:37:10 +00:00
if (outf == 0)
err(1, "%s", file);
2003-02-15 02:26:13 +00:00
while (!SLIST_EMPTY(&op_head)) {
op = SLIST_FIRST(&op_head);
/* was the option in the config file? */
if (op->op_value) {
fprintf(outf, "#define %s %s\n",
op->op_name, op->op_value);
}
2003-02-15 02:26:13 +00:00
SLIST_REMOVE_HEAD(&op_head, op_next);
free(op->op_name);
free(op->op_value);
free(op);
}
(void) fclose(outf);
}
/*
* Find the filename to store the option spec into.
*/
static char *
Borrow phk's axe and apply the next stage of config(8)'s evolution. Use Warner Losh's "hint" driver to decode ascii strings to fill the resource table at boot time. config(8) no longer generates an ioconf.c table - ie: the configuration no longer has to be compiled into the kernel. You can reconfigure your isa devices with the likes of this at loader(8) time: set hint.ed.0.port=0x320 userconfig will be rewritten to use this style interface one day and will move to /boot/userconfig.4th or something like that. It is still possible to statically compile in a set of hints into a kernel if you do not wish to use loader(8). See the "hints" directive in GENERIC as an example. All device wiring has been moved out of config(8). There is a set of helper scripts (see i386/conf/gethints.pl, and the same for alpha and pc98) that extract the 'at isa? port foo irq bar' from the old files and produces a hints file. If you install this file as /boot/device.hints (and update /boot/defaults/loader.conf - You can do a build/install in sys/boot) then loader will load it automatically for you. You can also compile in the hints directly with: hints "device.hints" as well. There are a few things that I'm not too happy with yet. Under this scheme, things like LINT would no longer be useful as "documentation" of settings. I have renamed this file to 'NOTES' and stored the example hints strings in it. However... this is not something that config(8) understands, so there is a script that extracts the build-specific data from the documentation file (NOTES) to produce a LINT that can be config'ed and built. A stack of man4 pages will need updating. :-/ Also, since there is no longer a difference between 'device' and 'pseudo-device' I collapsed the two together, and the resulting 'device' takes a 'number of units' for devices that still have it statically allocated. eg: 'device fe 4' will compile the fe driver with NFE set to 4. You can then set hints for 4 units (0 - 3). Also note that 'device fe0' will be interpreted as "zero units of 'fe'" which would be bad, so there is a config warning for this. This is only needed for old drivers that still have static limits on numbers of units. All the statically limited drivers that I could find were marked. Please exercise EXTREME CAUTION when transitioning! Moral support by: phk, msmith, dfr, asmodai, imp, and others
2000-06-13 22:28:50 +00:00
tooption(char *name)
{
static char hbuf[MAXPATHLEN];
char nbuf[MAXPATHLEN];
struct opt_list *po;
/* "cannot happen"? the otab list should be complete.. */
(void) strlcpy(nbuf, "options.h", sizeof(nbuf));
2003-02-15 02:26:13 +00:00
SLIST_FOREACH(po, &otab, o_next) {
if (eq(po->o_name, name)) {
strlcpy(nbuf, po->o_file, sizeof(nbuf));
break;
}
}
(void) strlcpy(hbuf, path(nbuf), sizeof(hbuf));
return (hbuf);
}
/*
* read the options and options.<machine> files
*/
static void
Borrow phk's axe and apply the next stage of config(8)'s evolution. Use Warner Losh's "hint" driver to decode ascii strings to fill the resource table at boot time. config(8) no longer generates an ioconf.c table - ie: the configuration no longer has to be compiled into the kernel. You can reconfigure your isa devices with the likes of this at loader(8) time: set hint.ed.0.port=0x320 userconfig will be rewritten to use this style interface one day and will move to /boot/userconfig.4th or something like that. It is still possible to statically compile in a set of hints into a kernel if you do not wish to use loader(8). See the "hints" directive in GENERIC as an example. All device wiring has been moved out of config(8). There is a set of helper scripts (see i386/conf/gethints.pl, and the same for alpha and pc98) that extract the 'at isa? port foo irq bar' from the old files and produces a hints file. If you install this file as /boot/device.hints (and update /boot/defaults/loader.conf - You can do a build/install in sys/boot) then loader will load it automatically for you. You can also compile in the hints directly with: hints "device.hints" as well. There are a few things that I'm not too happy with yet. Under this scheme, things like LINT would no longer be useful as "documentation" of settings. I have renamed this file to 'NOTES' and stored the example hints strings in it. However... this is not something that config(8) understands, so there is a script that extracts the build-specific data from the documentation file (NOTES) to produce a LINT that can be config'ed and built. A stack of man4 pages will need updating. :-/ Also, since there is no longer a difference between 'device' and 'pseudo-device' I collapsed the two together, and the resulting 'device' takes a 'number of units' for devices that still have it statically allocated. eg: 'device fe 4' will compile the fe driver with NFE set to 4. You can then set hints for 4 units (0 - 3). Also note that 'device fe0' will be interpreted as "zero units of 'fe'" which would be bad, so there is a config warning for this. This is only needed for old drivers that still have static limits on numbers of units. All the statically limited drivers that I could find were marked. Please exercise EXTREME CAUTION when transitioning! Moral support by: phk, msmith, dfr, asmodai, imp, and others
2000-06-13 22:28:50 +00:00
read_options(void)
{
FILE *fp;
char fname[MAXPATHLEN];
char *wd, *this, *val;
struct opt_list *po;
int first = 1;
char genopt[MAXPATHLEN];
2003-02-15 02:26:13 +00:00
SLIST_INIT(&otab);
if (ident == NULL) {
printf("no ident line specified\n");
exit(1);
}
(void) snprintf(fname, sizeof(fname), "../../conf/options");
openit:
fp = fopen(fname, "r");
if (fp == 0) {
return;
}
next:
wd = get_word(fp);
if (wd == (char *)EOF) {
(void) fclose(fp);
if (first == 1) {
first++;
(void) snprintf(fname, sizeof fname, "../../conf/options.%s", machinename);
fp = fopen(fname, "r");
if (fp != 0)
goto next;
(void) snprintf(fname, sizeof fname, "options.%s", machinename);
goto openit;
}
return;
}
if (wd == 0)
goto next;
if (wd[0] == '#')
{
while (((wd = get_word(fp)) != (char *)EOF) && wd)
;
goto next;
}
this = ns(wd);
val = get_word(fp);
if (val == (char *)EOF)
return;
if (val == 0) {
char *s = ns(this);
(void) snprintf(genopt, sizeof(genopt), "opt_%s.h", lower(s));
val = genopt;
free(s);
}
val = ns(val);
2003-02-15 02:26:13 +00:00
SLIST_FOREACH(po, &otab, o_next) {
if (eq(po->o_name, this)) {
printf("%s: Duplicate option %s.\n",
fname, this);
exit(1);
}
}
po = (struct opt_list *) malloc(sizeof *po);
bzero(po, sizeof(*po));
po->o_name = this;
po->o_file = val;
2003-02-15 02:26:13 +00:00
SLIST_INSERT_HEAD(&otab, po, o_next);
goto next;
}
static char *
Borrow phk's axe and apply the next stage of config(8)'s evolution. Use Warner Losh's "hint" driver to decode ascii strings to fill the resource table at boot time. config(8) no longer generates an ioconf.c table - ie: the configuration no longer has to be compiled into the kernel. You can reconfigure your isa devices with the likes of this at loader(8) time: set hint.ed.0.port=0x320 userconfig will be rewritten to use this style interface one day and will move to /boot/userconfig.4th or something like that. It is still possible to statically compile in a set of hints into a kernel if you do not wish to use loader(8). See the "hints" directive in GENERIC as an example. All device wiring has been moved out of config(8). There is a set of helper scripts (see i386/conf/gethints.pl, and the same for alpha and pc98) that extract the 'at isa? port foo irq bar' from the old files and produces a hints file. If you install this file as /boot/device.hints (and update /boot/defaults/loader.conf - You can do a build/install in sys/boot) then loader will load it automatically for you. You can also compile in the hints directly with: hints "device.hints" as well. There are a few things that I'm not too happy with yet. Under this scheme, things like LINT would no longer be useful as "documentation" of settings. I have renamed this file to 'NOTES' and stored the example hints strings in it. However... this is not something that config(8) understands, so there is a script that extracts the build-specific data from the documentation file (NOTES) to produce a LINT that can be config'ed and built. A stack of man4 pages will need updating. :-/ Also, since there is no longer a difference between 'device' and 'pseudo-device' I collapsed the two together, and the resulting 'device' takes a 'number of units' for devices that still have it statically allocated. eg: 'device fe 4' will compile the fe driver with NFE set to 4. You can then set hints for 4 units (0 - 3). Also note that 'device fe0' will be interpreted as "zero units of 'fe'" which would be bad, so there is a config warning for this. This is only needed for old drivers that still have static limits on numbers of units. All the statically limited drivers that I could find were marked. Please exercise EXTREME CAUTION when transitioning! Moral support by: phk, msmith, dfr, asmodai, imp, and others
2000-06-13 22:28:50 +00:00
lower(char *str)
{
Borrow phk's axe and apply the next stage of config(8)'s evolution. Use Warner Losh's "hint" driver to decode ascii strings to fill the resource table at boot time. config(8) no longer generates an ioconf.c table - ie: the configuration no longer has to be compiled into the kernel. You can reconfigure your isa devices with the likes of this at loader(8) time: set hint.ed.0.port=0x320 userconfig will be rewritten to use this style interface one day and will move to /boot/userconfig.4th or something like that. It is still possible to statically compile in a set of hints into a kernel if you do not wish to use loader(8). See the "hints" directive in GENERIC as an example. All device wiring has been moved out of config(8). There is a set of helper scripts (see i386/conf/gethints.pl, and the same for alpha and pc98) that extract the 'at isa? port foo irq bar' from the old files and produces a hints file. If you install this file as /boot/device.hints (and update /boot/defaults/loader.conf - You can do a build/install in sys/boot) then loader will load it automatically for you. You can also compile in the hints directly with: hints "device.hints" as well. There are a few things that I'm not too happy with yet. Under this scheme, things like LINT would no longer be useful as "documentation" of settings. I have renamed this file to 'NOTES' and stored the example hints strings in it. However... this is not something that config(8) understands, so there is a script that extracts the build-specific data from the documentation file (NOTES) to produce a LINT that can be config'ed and built. A stack of man4 pages will need updating. :-/ Also, since there is no longer a difference between 'device' and 'pseudo-device' I collapsed the two together, and the resulting 'device' takes a 'number of units' for devices that still have it statically allocated. eg: 'device fe 4' will compile the fe driver with NFE set to 4. You can then set hints for 4 units (0 - 3). Also note that 'device fe0' will be interpreted as "zero units of 'fe'" which would be bad, so there is a config warning for this. This is only needed for old drivers that still have static limits on numbers of units. All the statically limited drivers that I could find were marked. Please exercise EXTREME CAUTION when transitioning! Moral support by: phk, msmith, dfr, asmodai, imp, and others
2000-06-13 22:28:50 +00:00
char *cp = str;
while (*str) {
if (isupper(*str))
*str = tolower(*str);
str++;
}
return (cp);
}