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2013-04-25kconfig: allow specifying the seed for randconfigYann E. MORIN
For reproducibility, it can be useful to be able to specify the seed to use to seed the RNG. Add a new KCONFIG_SEED environment variable which can be set to the seed to use: $ make KCONFIG_SEED=42 randconfig $ sha1sum .config 70a128c8dcc61303069e1be352cce64114dfcbca .config $ make KCONFIG_SEED=42 randconfig $ sha1sum .config 70a128c8dcc61303069e1be352cce64114dfcbca .config It's very usefull for eg. debugging the kconfig parser. Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
2013-02-19kbuild: Fix missing '\n' for NEW symbols in yes "" | make oldconfig >conf.newBen Hutchings
According to Documentation/kbuild/kconfig.txt, the commands: yes "" | make oldconfig >conf.new grep "(NEW)" conf.new should list the new config symbols with their default values. However, currently there is no line break after each new symbol. When kconfig is interactive the user will type a new-line at this point, but when non-interactive kconfig must print it. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Reference: http://bugs.debian.org/636029 [regid23@nt1.in: Adjusted Ben's work to apply cleanly to this tree] Reported-and-tested-by: Regid Ichira <regid23@nt1.in> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-09-27kconfig: replace 'oldnoconfig' with 'olddefconfig', and keep the old name as ↵Adam Lee
an alias As 67d34a6a391369269a2e5dba8a5f42cc4cd50231 said, 'oldnoconfig' doesn't set new symbols to 'n', but instead sets it to their default values. So, this patch replaces 'oldnoconfig' with 'olddefconfig', stop making people confused, and keep the old name 'oldnoconfig' as an alias, because people already are dependent on its behavior with the counter-intuitive name. Signed-off-by: Adam Lee <adam8157@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-08-31kconfig: document oldnoconfig to what it really does in conf.cAdam Lee
As 67d34a6a391369269a2e5dba8a5f42cc4cd50231 said, the make target 'oldnoconfig' is a misnomer. It doesn't set new symbols to 'n', but instead sets it to their default values. This patch fixes the document in conf.c, and will submit another patch to replace 'oldnoconfig' to 'olddefconfig' Signed-off-by: Adam Lee <adam8157@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-05-07kbuild: all{no,yes,mod,def,rand}config only read files when instructed to.Eric W. Biederman
Prevent subtle surprises to both people working on the kconfig code and people using make allnoconfig allyesconfig allmoconfig and randconfig by only attempting to read a config file if KCONFIG_ALLCONFIG is set. Common sense suggests attempting to read the extra config files does not make sense unless requested. The documentation says the code won't attempt to read the extra config files unless requested. Current usage does not appear to include people depending on the code reading the config files without the variable being set So do the simple thing and stop reading config files when passed all{no,yes,mod,def,rand}config unless KCONFIG_ALLCONFIG environment variable is set. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-05-05kconfig: Add error handling to KCONFIG_ALLCONFIGEric W. Biederman
- Only try to read the file specified if KCONFIG_ALL_CONFIG is set to something other than the empty string or "1". - Don't use stat to check the name passed to conf_read_simple so that zconf_fopen can find the file in the current directory or in SRCTREE removing a extremely source of confusing failure, where KCONFIG_ALL_CONFIG was not interpreted with respect to the directory make was called in. - If conf_read_simple fails complain clearly and stop processing. Allowing the simple debugging of typos. - Clearly document the behavior so it is clear to users which values are treated as flags and which values are treated as filenames. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2011-07-02kconfig/conf: mark xfgets() privateArnaud Lacombe
This function has not much reason to be public. In the mean time, convert declaration from K&R C to ISO C. Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
2011-07-02kconfig/conf: add command line options' descriptionArnaud Lacombe
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
2011-07-02kconfig/conf: reduce the scope of `defconfig_file'Arnaud Lacombe
This variable is not used outside of main() so there is not much reason keeping it global. Ensure it is initialized as gcc has no way to know that normal execution path expect only one option switch to be given on the command line (except when we request help). As a result, we always initialize `defconfig_file' before using it. Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
2011-06-06kconfig: nuke LKC_DIRECT_LINK cruftArnaud Lacombe
This interface is not (and has never been ?) used by any frontend, just get rid of it. Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
2011-06-06kconfig: annotate non-trivial fall-troughArnaud Lacombe
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
2011-04-24kconfig: Avoid buffer underrun in choice inputBen Hutchings
Commit 40aee729b350 ('kconfig: fix default value for choice input') fixed some cases where kconfig would select the wrong option from a choice with a single valid option and thus enter an infinite loop. However, this broke the test for user input of the form 'N?', because when kconfig selects the single valid option the input is zero-length and the test will read the byte before the input buffer. If this happens to contain '?' (as it will in a mips build on Debian unstable today) then kconfig again enters an infinite loop. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Cc: stable@kernel.org [2.6.17+] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-12-15kconfig/conf: merge duplicate switch's caseArnaud Lacombe
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-10-12Merge branch 'kbuild/rc-fixes' into kbuild/kconfigMichal Marek
We need to revert the temporary hack in 71ebc01, hence the merge.
2010-10-09kbuild: fix oldnoconfig to do the right thingKyle McMartin
Commit 861b4ea4 broke oldnoconfig when removed the oldnoconfig checks on if (input_mode == nonint_oldconfig || input_mode == oldnoconfig) { if (input_mode == nonint_oldconfig && sym->name && !sym_is_choice_value(sym)) { to avoid oldnoconfig chugging through the else stanza. Fix that to restore expected behaviour (which I've confirmed in the Fedora kernel build that the configs end up looking the same.) Signed-off-by: Kyle McMartin <kyle@redhat.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-09-19kconfig: rephrase help texts/comments not to include the package nameArnaud Lacombe
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com> Reviewed-by: Randy Dunlap <rdunlap@xenotime.net> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Michal Marek <mmarek@suse.cz>
2010-09-19kconfig: allow build-time definition of the internal config prefixArnaud Lacombe
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Michal Marek <mmarek@suse.cz>
2010-09-08kbuild: fix oldnoconfig to do the right thingKyle McMartin
Commit 861b4ea4 broke oldnoconfig when removed the oldnoconfig checks on if (input_mode == nonint_oldconfig || input_mode == oldnoconfig) { if (input_mode == nonint_oldconfig && sym->name && !sym_is_choice_value(sym)) { to avoid oldnoconfig chugging through the else stanza. Fix that to restore expected behaviour (which I've confirmed in the Fedora kernel build that the configs end up looking the same.) Signed-off-by: Kyle McMartin <kyle@redhat.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-08-31kbuild: use getopt_long(), not its _only() variantArnaud Lacombe
NetBSD lacks getopt_long_only() whereas getopt_long() works just fine. Signed-off-by: Arnaud Lacombe <lacombar@gmail.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-08-13Merge branch 'kconfig' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 * 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6: kconfig: Fix warning: ignoring return value of 'fgets' kconfig: Fix warning: ignoring return value of 'fwrite' nconfig: Fix segfault when menu is empty kconfig: fix tristate choice with minimal config kconfig: fix savedefconfig for tristate choices
2010-08-13kconfig: Fix warning: ignoring return value of 'fgets'Jean Sacren
This fix facilitates fgets() either it returns on success or on error or when end of file occurs. Signed-off-by: Jean Sacren <sakiwit@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-08-06kconfig: fix make oldconfigSam Ravnborg
Linus wrote: This seems to make "make oldconfig" a _lot_ more verbose than it used to be. In a very annoying way. I just did a quick git bisect. It's introduced by commit 4062f1a4c030 ("kconfig: use long options in conf") by Sam Ravnborg. Apparently that thing is totally buggy, and doesn't just change the option names, but actively breaks them. The old behaviour (from years ago) were reintroduced by accident. Fix this so we are back to the version that are silent if there is nothing to ask about. Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Michal Marek <mmarek@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-03kconfig: add savedefconfigSam Ravnborg
savedefconfig will save a minimal config to a file named "defconfig". The config symbols are saved in the same order as they appear in the menu structure so it should be possible to map them to the relevant menus if desired. The implementation was tested against several minimal configs for arm which was created using brute-force. There was one regression related to default numbers which had their valid range further limited by another symbol. Sample: config FOO int "foo" default 4 config BAR int "bar" range 0 FOO If FOO is set to 3 then BAR cannot take a value higher than 3. But the current implementation will set BAR equal to 4. This is seldomly used and the final configuration is OK, and the fix was non-trivial. So it was documented in the code and left as is. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-08-03kconfig: add alldefconfigSam Ravnborg
alldefconfig create a configuration with all values set to their default value (form the Kconfig files). This may be useful when we try to use more sensible default values and may also be used in combination with the minimal defconfigs. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-08-03kconfig: change nonint_oldconfig to listnewconfigSam Ravnborg
Rename to a name that better match the other kconfig targets. listnewconfig shall read as: - list new options compared to current configuration New options are now written to stdout so one can redirect the output. Do not exit with an error code if there is new options. These are feature changes compared to the original nonint_oldconfig - but as this feature has not yet been in a released kernel it should not matter. It is still possible to do: make listnewconfig lookup new config options in Kconfig* edit .config Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Aristeu Rozanski <aris@redhat.com> Acked-by: Aristeu Rozanski <aris@redhat.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-08-03kconfig: rename loose_nonint_oldconfig => oldnoconfigSam Ravnborg
Rename target to something that fall more in line with the other kconfig targets. oldnoconfig shall read as: - read the old configuration and set all new options to no Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Aristeu Rozanski <aris@redhat.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-08-03kconfig: use long options in confSam Ravnborg
The list of options supported by conf is growing and their abbreviation did not resemble anything usefull. So drop the single letter options in favour of long options. The long options are named equal to what we know from the make target. The internal implmentation was changed to match this, resulting in much more readable code. Support for short options is dropped - no one is supposed to call this program direct anyway. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-06-12scripts:conf.c Fix warning: variable 'type' set but not usedJustin P. Mattock
Not sure if this is correct or not, but with make menuconfig HOSTCC scripts/kconfig/conf.o scripts/kconfig/conf.c: In function 'conf_sym': scripts/kconfig/conf.c:159:6: warning: variable 'type' set but not used scripts/kconfig/conf.c: In function 'conf_choice': scripts/kconfig/conf.c:231:6: warning: variable 'type' set but not used HOSTLD scripts/kconfig/mconf I get this using gcc 4.6.0 the below change fixes this form me. Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-06-02kconfig: introduce nonint_oldconfig and loose_nonint_oldconfigAristeu Rozanski
This patch has been around for a long time in Fedora and Red Hat Enterprise Linux kernels and it may be useful for others. The nonint_oldconfig target will fail and print the unset config options while loose_nonint_oldconfig will simply let the config option unset. They're useful in distro kernel packages where the config files are built using a combination of smaller config files. Arjan van de Ven wrote the initial nonint_config and Roland McGrath added the loose_nonint_oldconfig. Signed-off-by: Arjan van de Ven <arjan@redhat.com> [defunct email] Whatevered-by: Kyle McMartin <kyle@redhat.com> Acked-by: Arjan van de Ven <arjan@linux.intel.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Aristeu Rozanski <aris@redhat.com> [mmarek: whitespace fixes] Signed-off-by: Michal Marek <mmarek@suse.cz>
2009-09-20kbuild: add static to prototypesTrevor Keith
Warnings found via gcc -Wmissing-prototypes. Signed-off-by: Trevor Keith <tsrk@tsrk.net> Acked-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-09-20kconfig: make use of menu_get_ext_help in "make config"Cheng Renquan
Signed-off-by: Cheng Renquan <crquan@gmail.com> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-06-09kconfig: do not hardcode ".config" filenameMarkus Heidelberg
Rather than hardcoding ".config" use conf_get_configname(), which also respects the environment variable KCONFIG_CONFIG. This fixes "make silentoldconfig" when KCONFIG_CONFIG is used and also suggests the given filename for "Load" and "Save as" in qconf. Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-03-15kconfig: improve seed in randconfigIngo Molnar
'make randconfig' uses glibc's rand function, and the seed of that PRNG is set via: srand(time(NULL)); But 'time()' only increases once every second - freezing the randconfig result within a single second. My Nehalem testbox does randconfig much faster than 1 second and i have a few scripts that do 'randconfig until condition X' loops. Those scripts currently waste a lot of CPU time due to randconfig changing its seed only once per second currently. Change the seed to be micrseconds based. (I checked the statistical spread of the seed - the now.tv_sec*now.tv_usec multiplication there further improves it.) Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Roman Zippel <zippel@linux-m68k.org> [sam: fix for systems where usec is zero - noticed by Geert Uytterhoeven] Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-09-29kconfig: fix silentoldconfigzippel@linux-m68k.org
Recent changes to oldconfig have mixed up the silentoldconfig handling, so this fixes that by clearly separating that special mode, e.g. KCONFIG_NOSILENTUPDATE is only relevant here, the .config is written as needed. This will also properly close Bug 11230. Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-04kconfig: always write out .configSam Ravnborg
Always write out .config also in the case where config did not change. This fixes: http://bugzilla.kernel.org/show_bug.cgi?id=11230 Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Josh Boyer <jwboyer@linux.vnet.ibm.com> Cc: Adrian Bunk <bunk@kernel.org>
2008-07-25kconfig: make defconfig is no longer chattySam Ravnborg
make defconfig generated a lot of output then noone actually read. Use conf_set_all_new_symbols() to generate the default configuration and avoid the chatty output. A typical run now looks like this: $ make defconfig *** Default configuration is based on 'i386_defconfig' arch/x86/configs/i386_defconfig:13:warning: trying to assign nonexistent symbol SEMAPHORE_SLEEPERS arch/x86/configs/i386_defconfig:176:warning: trying to assign nonexistent symbol PREEMPT_BKL ... arch/x86/configs/i386_defconfig:1386:warning: trying to assign nonexistent symbol INSTRUMENTATION $ As an added benefit we now clearly see the warnings generated in the start of the process. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Roman Zippel <zippel@linux-m68k.org>
2008-07-25kconfig: make oldconfig is now less chattySam Ravnborg
Previously when running "make oldconfig" we saw all the propmt lines from kconfig and noone actully read this. With this patch the user will only see output if there is new symbols. This will be seen as "make oldconfig" runs which does not generate any output. A typical run now looks like this: $ make oldconfig scripts/kconfig/conf -o arch/x86/Kconfig $ If a new symbol is found then we restart the config process like this: $ make oldconfig scripts/kconfig/conf -o arch/x86/Kconfig * * Restart config... * * * General setup * Prompt for development and/or incomplete code/drivers (EXPERIMENTAL) [Y/n/?] y Local version - append to kernel release (LOCALVERSION) [] ... The bahaviour is similar to what we know when running the implicit oldconfig target "make silentoldconfig". "make silentoldconfig" are run as part of the kernel build process if the configuration has changed. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Roman Zippel <zippel@linux-m68k.org>
2008-07-25kconfig: speed up all*config + randconfigSam Ravnborg
Drop the chatty mode when we generate the all*config, randconfig configurations. Ths speeds up the process considerably and noone looked at the output anyway. This patch uses the conf_set_all_new_symbols() function just added to kconfig. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Roman Zippel <zippel@linux-m68k.org>
2008-01-28kconfig: tristate choices with mixed tristate and boolean valuesJan Beulich
Change kconfig behavior so that mixing bool and tristate config settings in a choice is possible and has the desired effect of offering just the tristate options individually if the choice gets set to M, and a normal boolean selection if the choice gets set to Y. Also fix scripts/kconfig/conf's handling of children of choice values - there may be more than one immediate child, and all of them need to be processed. Signed-off-by: Jan Beulich <jbeulich@novell.com> Cc: "Roman Zippel" <zippel@linux-m68k.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-28kconfig: gettext support for configEGRY Gabor
Gettext support for conf.c [Include locale.h by Kyle]. Signed-off-by: Egry Gabor <gaboregry1@t-online.hu> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Kyle McMartin <kyle@mcmartin.ca>
2008-01-28kconfig: use C89 random functions in conf.cLadislav Michl
rand and srand functions conform also to C89 in addition to POSIX.1-2001, which makes them a bit more portable (work also on MinGW host). Linux man page also says: "The versions of rand() and srand() in the Linux C Library use the same random number generator as random() and srandom()". * Use C89 conformant functions rand() and srand() Signed-off-by: Ladislav Michl <ladis@linux-mips.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Roman Zippel <zippel@linux-m68k.org>
2008-01-28kconfig: fix whitespace and sort includes in conf.cLadislav Michl
Sort includes and remove leading whitespace. Signed-off-by: Ladislav Michl <ladis@linux-mips.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Roman Zippel <zippel@linux-m68k.org
2008-01-28kconfig: use getopt() in conf.c for handling command line argumentsAndres Salomon
Switch from doing our own parsing of command line arguments to using getopt(3) to do it. Aside from simplifying things, this allows us to specify multiple arguments; the old code could only accept two arguments (input_mode and kconfig name). Note some subtle changes: - The argument '-?' is no longer supported. - '-h' is not treated as an error, so output goes to stdout, and we exit with '0'. - There is no compatibility checking amongst arguments; the last option will simply override earlier options. For example, 'conf -n -y foo' is perfectly valid now (input_mode will be set_yes). Previously, that would have been an error ("can't find file -y"). Signed-off-by: Andres Salomon <dilinger@debian.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Roman Zippel <zippel@linux-m68k.org>
2007-12-23kconfig: obey KCONFIG_ALLCONFIG choices with randconfig.Paul Mundt
Currently when using KCONFIG_ALLCONFIG with randconfig the choice options are clobbered. As recommended by Roman, this adds an is_new test to see whether to select a new option or obey the existing one. This is a resend of the earlier patch a couple of weeks ago, since there was no reply. Original thread is at http://lkml.org/lkml/2007/11/28/94 Signed-off-by: Paul Mundt <lethal@linux-sh.org> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-17x86: simplify "make ARCH=x86" and fix kconfig all.configSam Ravnborg
Simplify "make ARCH=x86" and fix kconfig so we again can set 64BIT in all.config. For a fix the diffstat is nice: 6 files changed, 3 insertions(+), 36 deletions(-) The patch reverts these commits: - 0f855aa64b3f63d35a891510cf7db932a435c116 ("kconfig: add helper to set config symbol from environment variable") - 2a113281f5cd2febbab21a93c8943f8d3eece4d3 ("kconfig: use $K64BIT to set 64BIT with all*config targets") Roman Zippel pointed out that kconfig supported string compares so the additional complexity introduced by the above two patches were not needed. With this patch we have following behaviour: # make {allno,allyes,allmod,rand}config [ARCH=...] option \ host arch | 32bit | 64bit ===================================================== ./. | 32bit | 64bit ARCH=x86 | 32bit | 32bit ARCH=i386 | 32bit | 32bit ARCH=x86_64 | 64bit | 64bit The general rule are that ARCH= and native architecture takes precedence over the configuration. So make ARCH=i386 [whatever] will always build a 32-bit kernel no matter what the configuration says. The configuration will be updated to 32-bit if it was configured to 64-bit and the other way around. This behaviour is consistent with previous behaviour so no suprises here. make ARCH=x86 will per default result in a 32-bit kernel but as the only ARCH= value x86 allow the user to select between 32-bit and 64-bit using menuconfig. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Andreas Herrmann <aherrman@arcor.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-12kconfig: use $K64BIT to set 64BIT with all*config targetsSam Ravnborg
The variable K64BIT can now be used to select the value of CONFIG_64BIT. This is for example useful for powerpc to generate allmodconfig for both bit sizes - like this: make ARCH=powerpc K64BIT=y make ARCH=powerpc K64BIT=n To use this the Kconfig file must use "64BIT" as the config value to select between 32 and 64 bit. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Roman Zippel <zippel@linux-m68k.org>
2007-09-01kconfig: oldconfig shall not set symbols if it does not need toRoman Zippel
Avoid setting the value if the symbol doesn't need to be changed or can't be changed. Later choices may change the dependencies and thus the possible input range. make oldconfig from a 2.6.22 .config with CONFIG_HOTPLUG_CPU not set was in some configurations setting CONFIG_HOTPLUG_CPU=y without asking, even when there was no actual requirement for CONFIG_HOTPLUG_CPU. This was triggered by SUSPEND_SMP that does a select HOTPLUG_CPU. Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Tested-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-07-25kconfig: attach help text to menusSam Ravnborg
Roman Zippel wrote: > A simple example would be > help texts, right now they are per symbol, but they should really be per > menu, so archs can provide different help texts for something. This patch does this and at the same time introduce a few API funtions used to access the help text. The relevant api functions are introduced in the various frontends. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Roman Zippel <zippel@linux-m68k.org>
2007-05-02kbuild: be more explicit on missing .config fileRandy Dunlap
Somewhat in reponse to kernel bugzilla #8197, be more explicit about why 'make all' fails when there is no .config file. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-12-13[PATCH] kconfig: new function "bool conf_get_changed(void)"Karsten Wiese
Run "make xconfig" on a freshly untarred kernel-tree. Look at the floppy disk icon of the qt application, that has just started: Its in a normal, active state. Mouse click on it: .config is being saved. This patch series changes things so taht after the mouse click on the floppy disk icon, the icon is greyed out. If you mouse click on it now, nothing happens. If you change some CONFIG_*, the floppy disk icon returns to "active state", that is, if you mouse click it now, .config is written. This patch: Returns sym_change_count to reflect the .config's change state. All read only accesses of sym_change_count are replaced by calls to conf_get_changed() . mconfig.c is manipulated to ask for saving only when conf_get_changed() returned true. Signed-off-by: Karsten Wiese <fzu@wemgehoertderstaat.de> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Roman Zippel <zippel@linux-m68k.org> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>