Commit Graph

58 Commits

Author SHA1 Message Date
kevans
81fb5ce871 config(8): Allow escape-quoted empty strings
For use with things like BOOT_TAG=\"\" -- there are valid reasons to allow
empty strings, especially as these are usually being passed through as
options. The same argument could perhaps be made for the unquoted
variant in things like MODULES_OVERRIDE="", but it's not immediately clear
that this is an issue so I've left it untouched.

MFC after:	3 days
2018-08-20 22:08:03 +00:00
kevans
e396020937 config(8): Add envvar support
envvar allows adding individual environment variables to the kernel's static
environment without the overhead of pulling in a full file. envvar in a
config looks like:

envvar some_var=5

All envvar-provided variables will be added after the env file is processed,
so envvar keys that exist in the previous env will be overwritten by
whatever value is set here in the kernel configuration directly.

As an aside, envvar lines are intentionally tokenized differently from
basically every other line. We used a named state when ENVVAR is encountered
to gobble up the rest of the line, which will later be cleaned and validated
in post-processing by sanitize_envline. This turns out to be the simplest
and cleanest way to allow the flexibility that kenv does while not
compromising on silly hacks.

Reviewed by:	ian (also contributor of sanitize_envline rewrite)
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D15962
2018-06-25 17:17:47 +00:00
pfg
872b698bd4 General further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
2017-11-20 19:49:47 +00:00
imp
7e6cabd06e Renumber copyright clause 4
Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.

Submitted by:	Jan Schaumann <jschauma@stevens.edu>
Pull Request:	https://github.com/freebsd/freebsd/pull/96
2017-02-28 23:42:47 +00:00
truckman
178e19d132 Don't free fnamebuf before we calling cfgfile_add(). This changes a
use-after-free error into a minor memory leak.

Reported by:	Coverity
CID:		1006084
2016-05-16 04:39:16 +00:00
asomers
1b1437fc8f Fix kern/187712: config(8) does not respect KERNCONFDIR.
The impact of this bug is that you cannot build a kernel if both of the
following are true:
1) The kernel config file is in a non-default location
2) The kernel config file uses the "include" statement from config(5).

usr.sbin/config/main.c
usr.sbin/config/config.8
usr.sbin/config/config.h
usr.sbin/config/lang.l
	Added a "-I path" option to config(8).  By analogy to cc(1), it adds
	an extra path in which the "include" statement will search for
	files.

Makefile.inc1
	Pass "-I ${KERNCONFDIR}" to config(8).

PR:		kern/187712
Reviewed by:	will, imp (previous version)
MFC after:	3 weeks
Sponsored by:	Spectra Logic Corporation
2014-03-20 17:30:09 +00:00
jkim
b6198521c8 Work around build breakages with GCC 4.2.
Reported by:	tinderbox
2013-05-23 05:42:35 +00:00
jkim
eb004e0f13 Improve compatibility with recent flex from flex.sourceforge.net. 2013-05-03 23:51:32 +00:00
brucec
3aec76f035 Don't generate input() since it's not used. 2010-11-22 14:16:22 +00:00
ru
5562af42b4 - Handle calloc() allocation failures.
- Fixed a comment.
- 2 -> EXIT_FAILURE in some places.
- errx() -> err() where appropriate.

PR:		144644
Submitted by:	Garrett Cooper
2010-03-30 13:46:40 +00:00
ed
b9ca89bfc4 ANSIfy almost all applications that use WARNS=6.
I was considering committing all these patches one by one, but as
discussed with brooks@, there is no need to do this. If we ever
need/want to merge these changes back, it is still possible to do this
per application.
2009-12-29 22:53:27 +00:00
thompsa
5318a38202 Allow multiple makeoption lines to be used with the += operator, this permits
the following syntax in the kernel config.

 makeoptions MODULES_OVERRIDE=foo
 makeoptions MODULES_OVERRIDE+=bar
 makeoptions MODULES_OVERRIDE+=baz

Bump config minor version to 600007.
2008-11-22 21:12:47 +00:00
obrien
ffa6157788 Allow kernel config files to include files other than those in the CWD,
using unquoted paths.
2008-07-28 17:11:57 +00:00
wkoszek
2e673327ec Improve INCLUDE_CONFIG_FILE support.
This change will let us to have full configuration of a running kernel
available in sysctl:

	sysctl -b kern.conftxt

The same configuration is also contained within the kernel image. It can be
obtained with:

	config -x <kernelfile>

Current functionality lets you to quickly recover kernel configuration, by
simply redirecting output from commands presented above and starting kernel
build procedure. "include" statements are also honored, which means options
and devices from included files are also included.

Please note that comments from configuration files are not preserved by
default. In order to preserve them, you can use -C flag for config(8). This
will bring configuration file and included files literally; however,
redirection to a file no longer works directly.

This commit was followed by discussion, that took place on freebsd-current@.
For more details, look here:

	http://lists.freebsd.org/pipermail/freebsd-current/2007-March/069994.html
	http://lists.freebsd.org/pipermail/freebsd-current/2007-May/071844.html

Development of this patch took place in Perforce, hierarchy:

	//depot/user/wkoszek/wkoszek_kconftxt/

Support from:	freebsd-current@ (links above)
Reviewed by:	imp@
Approved by:	imp@
2007-05-12 19:38:18 +00:00
ru
a77bcc5aa3 Add "makeoption" as an alias to "makeoptions", for symmetry. 2005-12-03 20:04:24 +00:00
ru
8c0e76dc33 By a popular demand, add "nomakeoptions" as an alias to "nomakeoption". 2005-11-03 21:09:59 +00:00
ru
aaf1885b0a Implement the "nocpu" directive.
Requested by:	rwatson
2005-11-03 14:01:22 +00:00
des
85471cb3ce "device" and "nodevice" lines can actually specify more than one device
(separated by commas), so add "devices" and "nodevices" as aliases.

MFC after: 	2 weeks
2005-02-10 10:46:27 +00:00
des
daaffcb3c0 If the file specified in an "include" line does not exist in the current
directory, and its name does not begin with a period or a forward slash,
go look for it in ../../conf.

Wished for by:	scottl
MFC after:	2 weeks
2004-10-24 09:38:41 +00:00
phk
5475444429 We accept both "option" and "options" so also accept both "nooption"
and "nooptions".
2004-10-12 13:21:44 +00:00
peter
1d9abdbe78 Kill count device support from config. I've changed the last few
remaining consumers to have the count passed as an option.  This is
i4b, pc98/wdc, and coda.

Bump configvers.h from 500013 to 600000.

Remove heuristics that tried to parse "device ed5" as 5 units of the ed
device.  This broke things like the snd_emu10k1 device, which required
quotes to make it parse right.  The no-longer-needed quotes have been
removed from NOTES, GENERIC etc.  eg, I've removed the quotes from:
   device  snd_maestro
   device  "snd_maestro3"
   device  snd_mss

I believe everything will still compile and work after this.
2004-08-30 23:03:58 +00:00
imp
9c9b6e3045 Per letter dated July 22, 1999, delete clause 3 from code directly
from Berkeley.
2004-08-07 04:19:37 +00:00
cognet
00e9b04664 Add a new "files" directive, which allows to include a files.foo file directly
from a kernel config file.
Bump config version to reflect this change.
2004-05-09 22:29:00 +00:00
ru
c51d104769 Implemented "nooption" and "nomakeoption" config(8) tokens.
Fixed memory leak in the "nodevice" option implementation.

Use these instead of sed(1) in MD NOTES.

Use a single makefile (sys/conf/makeLINT.mk) to generate
LINT for all architectures.  (Previous versions missed
the LINT dependency on Makefile, and i386 version also
missed the dependency on ${NOTES}.)

Fixed bugs in the previous NOTES conversion using the
"nodevice" token and sed(1):

- i386 LINT lost "device pst".

- pc98 LINT lost SC_*, MAXCONS and KBD_DISABLE_KEYMAP_LOAD
  options, and got needless DPT_* options.

- Added nooptions PPC_DEBUG, PPC_PROBE_CHIPSET, KBD_INSTALL_CDEV
  to sparc64 LINT so that it has a chance to config(8).

This basically returns us to where we were before.
2003-02-26 23:36:59 +00:00
ru
146e03f2e3 Implemented a simple "nodevice" config(8) command that cancels
the effect of the "device" command, and use it to generate the
OLDCARD from GENERIC.

Suggested by:	bde
2003-02-15 02:39:13 +00:00
jmallett
cb6bcb1e25 Clean up hex() and octal() to return and work with unsigned integers since
they scan values of unsigned types, and since they do not need otherwise,
have them take const char * arguments.
2002-06-21 10:56:44 +00:00
peter
e031b90e2a Enable hardwiring of things like tunables from embedded enironments
that do not start from loader(8).
2001-08-27 05:11:53 +00:00
dd
b5164c6585 Introduce an "include" directive. It takes one argument, a filename
to be included into this one.  This works the same way as #include
does in C; as far as the user is concerned, the included file is
inlined into the current one.

Since config(8) is no longer limited to working on one user-supplied
file, printing just a line number in an error message is not
sufficient.  The new global variable yyfile represents the file
currently being parsed, and must be printed as well.

Reviewed by:	imp
Obtained from:	OpenBSD
2001-07-12 02:08:51 +00:00
peter
b96d955fca ${BDECFLAGS} work. And fix a real error in the process. A "MAXUSERS"
string could have been passed to free();  There are some warnings here
I am not sure how to fix as they are in the lex scanner code, etc.
2001-02-19 04:43:21 +00:00
phk
362242ba16 Make it possible to specify profiling in the kernel config file.
Do so for LINT.
2000-10-14 08:33:22 +00:00
peter
647ef85d48 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
peter
d21ff337ef Re-support "tape" as an alias for device and clean up a bit more cruft
left over from the original system (d_dk was for preassigned iostat unit
numbers for disks)
1999-11-09 07:20:22 +00:00
marcel
8024dcb61d Add option "-d destdir" which instructs config to use another output
directory than the default one. If the option is not given, then the
output of config is exactly as before. Only when an alternate output
directory has been specified will config modify its behavior.

Additional changed:
o  Remove the now conflicting and unused NODEV define. It
   conflicts with NODEV in sys/param.h.
o  Rename the now conflicting MACHINE token to ARCH. It
   conflicts with MACHINE in sys/param.h.
o  Fix some easy style bugs.
o  Fix some easy grammar bugs in the manpage.

Approved by: peter, archie
1999-10-30 10:55:48 +00:00
peter
b7ec658010 Further cleanup. Also remove the following unused or defunct tokens:
and, bio, cam, master, minor, net, priority, sequential, size, slave, trace
1999-10-10 17:36:11 +00:00
peter
8a1cbec077 Zap references to 'major' token, it's not used.
Zap references to devices.i386 - it's not used. (neither is devices.pc98
or devices.alpha)
1999-10-08 06:20:43 +00:00
peter
140b47277b Don't include trailing whitespace in ID tokens before comments. ie:
options FOO=10		# comment
would give FOO the value of "10		" and that caused unwanted
touches on the opt_*.h files.

I hope I've got this right..
1999-07-01 16:20:16 +00:00
peter
e3eacaf57f Understand 'config kernelname' and pretend it was a
'makeoptions KERNEL=kernelname'.  Warn about any trailing stuff as it's
not handled here.  This is a simple bandaid, hopefully to head off some
complaints from certain people.
1999-05-10 02:42:58 +00:00
phk
a3eb84b2f9 config(8) lobotomy, please see commit msg in sys.
(I have no idea why cvs didn't take these changes before.)
1999-05-09 17:23:38 +00:00
luoqi
f768143bcb Make options like NO_F00F_HACK work (with context sensitive lexical rules). 1999-04-27 01:37:01 +00:00
peter
6994e5b801 More cleanups, tweaks and features.
- make this work:   options FOO123=456   *without quotes*
- grumble (but accept) vector xxxintr, and tty/net/bio/cam flags.
- complain if a device is specified twice (eg: 2 x psm0)
- don't require quotes around:  port IO_COM2
- recognize negative numbers.  (ie: options CAM_DEBUG_UNIT=-1)
- GC some more unused stuff (we don't have composite disks from config(8)).
- various other nits (snprintf paranoia etc)
1999-04-24 18:59:19 +00:00
peter
e0200a9fde Further cleanups. i386_ioconf.c and alpha_ioconf.c were essentially the
same and were merged into a single newbus_ioconf.c.  CG'd some more unused
code.
1999-04-18 13:36:29 +00:00
peter
911997aae8 Get out the blow torch and hack away all the unused stuff. Note that
I zapped the MACHINE_MIPS stuff, it isn't likely to be useful apart from
recognition of the machine name.  It would be reasonable to expect new
ports would look something like the alpha/i386 from a config perspective.
1999-04-17 14:41:41 +00:00
bde
683b78890a Removed unused/unusable "ha" keyword. Device classes should never have
been visible here.

Fixed disordering of keyword table by "cam".
1998-10-16 15:08:30 +00:00
eivind
9f3f2581d7 Scaffolding for High Availability code. The actual code will probably
come tomorrow.

Submitted by:	Simon Shapiro <shimon@simon-shapiro.org>
1998-04-02 04:25:41 +00:00
gibbs
202e8d2ad2 Add isa_devtab_cam. 1997-09-21 22:12:50 +00:00
charnier
b8c46235c5 Use err(3), add usage(). -Wall clean. 1997-09-15 06:37:10 +00:00
ache
bcbc3df8b0 Remove support for "port none" and "port auto", it gains nothing,
non-standard and not used. "port auto" is equal to "port?" or missing "port"
keyword now. "port none" is really probe routine task (return -1 for
no ports).
1997-03-28 00:56:11 +00:00
phk
b5bea7dc4e Backout yacc changes. 1996-06-02 17:22:01 +00:00
phk
a550a3bde3 yacc rule changes. 1996-05-30 23:16:31 +00:00
bde
6c70f295f5 Implemented a new keyword `disable'. This should be useful for controlling
dangerous drivers in GENERIC.

Removed non-comments on #endifs in config.y.

Improved output formatting in mkioconf.c.
1996-04-13 19:57:38 +00:00