Commit graph

340 commits

Author SHA1 Message Date
Andy Whitcroft
020e773f6b kconfig: sym_expand_string_value: allow for string termination when reallocing
When expanding a parameterised string we may run out of space, this
triggers a realloc.  When computing the new allocation size we do not
allow for the terminating '\0'.  Allow for this when calculating the new
length.

Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-01 17:06:00 -04:00
Steven Rostedt
8ef17fa2ef kconfig: Have streamline_config process menuconfigs too
Some menuconfigs in the Kconfig files have prompts and dependencies.
Currently, streamline_config misses these, and this can cause
streamline_config to keep modules enabled that should not be, and
even worse, not enable those that should.

This patch makes streamline_config process menuconfigs just like it
would process a config.

Reported-by: member graysky <graysky@archlinux.us>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-10-29 01:07:23 -04:00
Steven Rostedt
20d1904733 kconfig: Fix streamline_config to read multi line deps in Kconfig files
I noticed that some Kconfig files have multi line dependencies
that continue with a backslash. Those dependencies on the next
line will be missed by streamline_config.

For example:

config CS89x0
	tristate "CS89x0 support"
	depends on NET_ETHERNET && (ISA || EISA || MACH_IXDP2351 \
		|| ARCH_IXDP2X01 || MACH_MX31ADS)

The "|| ARCH_IXDP2X01 || MACH_MX31ADS)" will not be processed.

This patch adds code to handle this case.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-10-29 01:07:10 -04:00
hiromu
cf5a189d4a kconfig: Fix missing declaration of variable $dir in streamline_config.pl
On Fri, Aug 17, 2010 at 01:43PM +0800, Américo Wang wrote:
> Acked-by: WANG Cong <xiyou.wangcong@gmail.com>
>
> BTW, I think we should add "use strict;" too.

Then I added "use strict;" to streamline_config.pl, I saw another
warning.

> Global symbol "$dir" requires explicit package name at
scripts/kconfig/streamline_config.pl line 286.
> Global symbol "$dir" requires explicit package name at
scripts/kconfig/streamline_config.pl line 287.
> Global symbol "$dir" requires explicit package name at
scripts/kconfig/streamline_config.pl line 288.

Then I added "my $dir;" to line 285.

Cc: Américo Wang <xiyou.wangcong@gmail.com>
Cc: Toralf Foerster <toralf.foerster@gmx.de>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Hiromu Yakura <hiromu1996@gmail.com>
LKML-Reference: <1282042158.7160.9.camel@hiromu-Macbook>

[ changed to just add my in front of $dir instead of new line ]

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-10-29 01:04:16 -04:00
hiromu yagura
ccece60ac6 kconfig: Fix variable name typo %prompts in streamline_config.pl
When I added "use strict;" to streamline_config.pl, I saw the following
warnings:

> Global symbol "%prompt" requires explicit package name at
scripts/kconfig/streamline_config.pl line 183.
> Global symbol "%prompt" requires explicit package name at
scripts/kconfig/streamline_config.pl line 368.

The declaration of %prompt was incorrect, and should have been %prompts.

Cc: Toralf Foerster <toralf.foerster@gmx.de>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Hiromu Yakura <hiromu1996@gmail.com>
LKML-Reference: <1281845597.11566.5.camel@camp10-laptop>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-10-29 01:04:14 -04:00
Steven Rostedt
4908980b24 kconfig: Make localmodconfig handle environment variables
The commit 838a2e55e6
 kbuild: migrate all arch to the kconfig mainmenu upgrade

Broke make localmodconfig. The reason was that it added a
environment variable to the kconfig source, which the
streamline_config.pl could not handle.

This patch changes streamline_config.pl to handle kconfig sources
using environment variables in their names.

Cc: Arnaud Lacombe <lacombar@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Michal Marek <mmarek@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-10-29 01:03:42 -04:00
Michal Marek
70c74e59db Merge branch 'message-callback' into kbuild/kconfig
Conflicts:
	scripts/kconfig/nconf.c
2010-10-28 00:54:25 +02:00
Michal Marek
b1f7d6e190 Revert "kconfig: Temporarily disable dependency warnings"
This reverts commit 71ebc01, which was a 2.6.36-only stopgap solution.

Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-10-12 15:12:23 +02:00
Michal Marek
239060b93b Merge branch 'kbuild/rc-fixes' into kbuild/kconfig
We need to revert the temporary hack in 71ebc01, hence the merge.
2010-10-12 15:09:06 +02:00
Kyle McMartin
e9203c9882 kbuild: fix oldnoconfig to do the right thing
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>
2010-10-09 23:55:08 +02:00
Michal Marek
71ebc01d3a kconfig: Temporarily disable dependency warnings
After fixing a use-after-free bug in kconfig, a 'make defconfig' or
'make allmodconfig' fills the screen with warnings that were not
detected before. Given that we are close to the release now, disable the
warnings temporarily and deal with them after 2.6.36.

Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-10-09 23:19:07 +02:00
Will Newton
1408b15b98 kconfig: Use PATH_MAX instead of 128 for path buffer sizes.
This prevents the buffers being overflowed when using a config
file with a long name. PATH_MAX is used elsewhere in the same
file, so use it here as well.

Signed-off-by: Will Newton <will.newton@imgtec.com>
Acked-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-10-04 15:40:04 +02:00
Arnaud Lacombe
ff5ff6060b kconfig: delay symbol direct dependency initialization
This fixes the use-after-free and associated crash in kconfig introduced
in commit 246cf9c26b.

Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-10-04 15:13:13 +02:00
Michal Marek
19c29f3260 kconfig: Fix realloc usage()
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-09-30 22:26:39 +02:00
Michal Marek
a01ebe154c kconfig: Propagate const
Commit 2e7a091 made struct file->name a const char*, but forgot to
constify all users of it.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-09-30 22:17:48 +02:00
Naohiro Aota
8bea7548ee kconfig: Don't go out from read config loop when you read new symbol
commit 8baefd30b5 of linux-next replaced
a `switch()' statement with some `if()' statements, but left `break's
in the `switch()' statement untouched. This cause read config loop to
exit and so "make oldconfig" is not much usable (see below).

> $ make oldconfig
><snip>
> scripts/kconfig/conf --oldconfig Kconfig
> #
> # using defaults found in /boot/config-2.6.34-ccs-r1
> #
> *
> * Restart config...
> *
> *
> * General setup
> *
> Prompt for development and/or incomplete code/drivers (EXPERIMENTAL) [N/y/?] (NEW)

(I've already have "CONFIG_EXPERIMENTAL=y" in the old config file. But
that's not read here.)

This patch should fix this problem.

Signed-off-by: Naohiro Aota <naota@elisp.net>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-09-30 21:59:32 +02:00
Michal Marek
0455029bea Merge branch 'kbuild/kconfig/kbuild-generic-v7' of http://github.com/lacombar/linux-2.6 into kbuild/kconfig
* 'kbuild/kconfig/kbuild-generic-v7' of http://github.com/lacombar/linux-2.6:
  kbuild: migrate all arch to the kconfig mainmenu upgrade
  kconfig: expand file names
  kconfig: use the file's name of sourced file
  kconfig: constify file name
  kconfig: don't emit warning upon rootmenu's prompt redefinition
  kconfig: replace KERNELVERSION usage by the mainmenu's prompt
  kconfig: delay gconf window initialization
  kconfig: expand by default the rootmenu's prompt
  kconfig: add a symbol string expansion helper
  kconfig: regen parser
  kconfig: implement the `mainmenu' directive
  kconfig: allow PACKAGE to be defined on the compiler's command-line
  kconfig: rephrase help texts/comments not to include the package name
  kconfig: allow build-time definition of the internal config prefix
  kconfig: rephrase help text not to mention the internal prefix
  kconfig: replace a `switch()' statement by a more flexible `if()' statement
2010-09-27 23:24:53 +02:00
Junio C Hamano
8c41e5e363 kconfig: fix menuconfig on debian lenny
In 60f33b8 (kconfig: get rid of stray a.o, support ncursesw, 2006-01-15),
support to link menuconfig with ncursesw library was added.  To compute
the linker command option -l, we check "libncursesw.{so,a,dylib}" to allow
ncursesw to be used as a replacement ncurses.  However, when checking what
header file to include, we do not check /usr/include/ncursesw directory.

Add /usr/include/ncursesw to the list of directories that are checked.
With this patch, on my Debian Lenny box with libncursesw5-dev package but
not libncurses5-dev package, I can say "make menuconfig".

Signed-off-by: Junio C Hamano <gitster@pobox.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-09-20 14:09:31 +02:00
Arnaud Lacombe
838a2e55e6 kbuild: migrate all arch to the kconfig mainmenu upgrade
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Michal Marek <mmarek@suse.cz>
2010-09-19 22:54:11 -04:00
Arnaud Lacombe
c7abe8630a kconfig: expand file names
This will allow to use the following construct in source files:

config FOO
    string
    default "foo"

source "$FOO/Kconfig"

Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Michal Marek <mmarek@suse.cz>
2010-09-19 22:54:07 -04:00
Arnaud Lacombe
e82dae9083 kconfig: use the file's name of sourced file
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Michal Marek <mmarek@suse.cz>
2010-09-19 22:54:04 -04:00
Arnaud Lacombe
2e7a091833 kconfig: constify file name
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Michal Marek <mmarek@suse.cz>
2010-09-19 22:54:00 -04:00
Arnaud Lacombe
ba6ff60d5e kconfig: don't emit warning upon rootmenu's prompt redefinition
This silences the warning printed upon prompt redefinition for the rootmenu.
We will encounter this redefinition when a "mainmenu" statement is specified and
override the default prompt.

Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Michal Marek <mmarek@suse.cz>
2010-09-19 22:53:57 -04:00
Arnaud Lacombe
0954828fcb kconfig: replace KERNELVERSION usage by the mainmenu's prompt
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Michal Marek <mmarek@suse.cz>
2010-09-19 22:53:53 -04:00
Arnaud Lacombe
c55c9d571a kconfig: delay gconf window initialization
Delay the window initialization to let the rootmenu's prompt be
initialized as it will be used to get the window's title.

Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
2010-09-19 22:53:49 -04:00
Arnaud Lacombe
f6ce00b8cc kconfig: expand by default the rootmenu's prompt
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Michal Marek <mmarek@suse.cz>
2010-09-19 18:19:53 -04:00
Arnaud Lacombe
76a540958a kconfig: add a symbol string expansion helper
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Michal Marek <mmarek@suse.cz>
2010-09-19 18:19:48 -04:00
Arnaud Lacombe
c0920a1cbd kconfig: regen parser
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Michal Marek <mmarek@suse.cz>
2010-09-19 18:19:44 -04:00
Arnaud Lacombe
8ea13e2c87 kconfig: implement the `mainmenu' directive
If specified, the directive must be placed at the top of the Kconfig file.

We need to change the grammar to make the mainmenu directive set the
`rootmenu' prompt. This reflect how menu_add_prompt() works internally, ie.
set the prompt of the `current_entry', pointing originally to `rootmenu'.

Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Michal Marek <mmarek@suse.cz>
2010-09-19 18:19:39 -04:00
Arnaud Lacombe
ef211607ed kconfig: allow PACKAGE to be defined on the compiler's command-line
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Michal Marek <mmarek@suse.cz>
2010-09-19 18:19:35 -04:00
Arnaud Lacombe
652cf9821d kconfig: rephrase help texts/comments not to include the package name
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>
2010-09-19 18:19:30 -04:00
Arnaud Lacombe
ffb5957bc4 kconfig: allow build-time definition of the internal config prefix
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Michal Marek <mmarek@suse.cz>
2010-09-19 18:19:26 -04:00
Arnaud Lacombe
59dfa24da7 kconfig: rephrase help text not to mention the internal prefix
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Michal Marek <mmarek@suse.cz>
2010-09-19 18:19:21 -04:00
Arnaud Lacombe
8baefd30b5 kconfig: replace a switch()' statement by a more flexible if()' statement
With the upcoming dynamical configuration prefix, we can no longer assume that
the prefix will start by a 'C'. As such, we can no longer hardcode this value in
the `case ...:', so replace the `switch() { ... }' statement by a more flexible
'if () { ... }' statement.

Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Michal Marek <mmarek@suse.cz>
2010-09-19 18:19:16 -04:00
Justin P. Mattock
cec1921ec9 scripts/kconfig/gconf.glade Update broken web addresses.
As discussed, remove the DOCTYPE declaration since libglade validates
the file against itself..

Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-09-17 16:54:42 +02:00
Michal Marek
458452f4a9 kconfig: Simplify Makefile for xconfig
Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-09-13 13:41:31 +02:00
Alexander Stein
20f4ad8a19 Fix QT4 moc, cflags libs detection on dual QT3/Qt4 systems
On system with QT3 and QT4 qmake in PATH may be from QT3. So we use
pkg-config for proper QT4 detection.
By reqesting cflags and libs for either QtCore, QtGui and QtSupport include
dirs and libs get listed several times, but so we won't mis anything

Signed-off-by: Alexander Stein <alexander.stein@informatik.tu-chemnitz.de>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-09-13 13:01:30 +02:00
Stephen Boyd
aee08ed499 nconfig: Fix help for choice menus
When getting the help for a choice menu with a help section (for example
the "Choose SLAB allocator" menu) nconfig pops up a window with nothing
inside it. This is due to show_help() passing an empty string to
show_scroll_win()'s 3rd argument. The option really does have help
though, but it isn't a config symbol, so just add the help text for
the option, and don't try to add anything else like the config option
name.

Signed-off-by: Stephen Boyd <bebarino@gmail.com>
Acked-by: Nir Tzachar <nir.tzachar@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-09-13 12:43:22 +02:00
Kyle McMartin
71d8066265 kbuild: fix oldnoconfig to do the right thing
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>
2010-09-08 13:55:37 +02:00
Michal Marek
76a136c4a6 xconfig: Change the titlebar if using Qt3
Qt4 is now used by default and will get more testing. In case someone
still uses Qt3 and reports a bug, make it easy to recognize that this is
Qt3.

Acked-by: Alexander Stein <alexander.stein@informatik.tu-chemnitz.de>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-09-06 13:31:50 +02:00
Alexander Stein
133c5f7c10 kconfig qconf: port to QT4
A straight forward port to QT4 using qt3to4 and compiling against
  qt3support

* Use pkg-config to detect QT4 which is hopefully portable enough
* If no QT4, QT3 will by tried instead
* Classes renamed using qt3to4
  * If build using QT3 renamed to QT3 class names using defines
* ConfigInfoView::menu has to be renamed as QT4 moc strips struct from
  struct menu and creates a name conflict
* QT2 support has been dropped
* The hidden options inserted in 39a4897c1b
  are use in native API

Signed-off-by: Alexander Stein <alexander.stein@informatik.tu-chemnitz.de>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-09-01 16:14:29 +02:00
Arnaud Lacombe
c94d3fb01f kbuild: use getopt_long(), not its _only() variant
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>
2010-08-31 13:33:41 +02:00
Arnaud Lacombe
9ba9568259 kbuild: don't overwrite HOST_EXTRACFLAGS
This might be used by the user to specify extra arguments for the host
compiler.

Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-08-26 13:59:43 +02:00
Michal Marek
e981b06076 Merge commit 'v2.6.36-rc1' into kbuild/rc-fixes 2010-08-20 13:53:08 +02:00
Arnaud Lacombe
c24035b9ed kbuild: fix typo
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-08-17 11:00:43 +02:00
Arnaud Lacombe
7080e47bb2 kbuild: don't include `check-lxdialog' ldflags in global HOST_LOADLIBES
On BSD systems, `check-lxdialog' would select -lcurses as the default
curses library which would conflict with -lncurses at runtime: curses'
compatible symbols are getting handled by the system's curses library while the
ncurses-specific symbols are getting handled by the ports' ncurses.

This fixes `nconf' segmentation fault on these systems.

Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-08-17 10:35:40 +02:00
Michal Marek
42368c37fb kconfig: Allow frontends to display messages themselves
Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-08-17 10:21:19 +02:00
Arnaud Lacombe
94bedeca77 kbuild: confdata.c explicitly reference errno, thus need <errno.h>
This fixes:
% gmake LKC_GENPARSER=1 menuconfig
[...]
scripts/kconfig/confdata.c:739: error: 'errno' undeclared (first use in this function)
scripts/kconfig/confdata.c:739: error: (Each undeclared identifier is reported only once
scripts/kconfig/confdata.c:739: error: for each function it appears in.)
scripts/kconfig/confdata.c:739: error: 'ENOENT' undeclared (first use in this function)

triggered on NetBSD.

Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-08-17 09:11:38 +02:00
Nir Tzachar
a72f3e2b82 nconfig: add search support
Remove the old hotkeys feature, and replace it by an interactive string
search.
From nconfig help:

Searching: pressing '/' triggers interactive search mode.
           nconfig performs a case insensitive search for the string
           in the menu prompts (no regex support).
           Pressing the up/down keys highlights the previous/next
           matching item. Backspace removes one character from the
           match string. Pressing either '/' again or ESC exits
           search mode. All other keys behave normally.

Miscellaneous other changes (including Rundy's and Justin's input).

Signed-off-by: Nir Tzachar <nir.tzachar@gmail.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-08-16 22:04:55 +02:00
Sam Ravnborg
3643f849d7 kconfig: fix segfault when detecting recursive dependency
Following sample Kconfig generated a segfault:

config FOO
        bool
        select PERF_EVENTS if HAVE_HW_BREAKPOINT

config PERF_EVENTS
        bool

config HAVE_HW_BREAKPOINT
        bool
        depends on PERF_EVENTS

Fix by reverting back to a valid property if there was no
property on the stack of symbols.

The above pattern were seen in sh Kconfig.
A fix for the Kconfig file has been sent to the sh folks.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-08-15 00:32:13 +02:00