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linux/scripts/kconfig/Makefile
Sam Ravnborg 7cf3d73b43 kconfig: add savedefconfig 
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>
2010-08-03 13:49:32 +02:00

338 lines
11 KiB
Makefile
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# ===========================================================================
# Kernel configuration targets
# These targets are used from top-level makefile
PHONY += oldconfig xconfig gconfig menuconfig config silentoldconfig update-po-config \
localmodconfig localyesconfig
ifdef KBUILD_KCONFIG
Kconfig := $(KBUILD_KCONFIG)
else
Kconfig := arch/$(SRCARCH)/Kconfig
endif
xconfig: $(obj)/qconf
$< $(Kconfig)
gconfig: $(obj)/gconf
$< $(Kconfig)
menuconfig: $(obj)/mconf
$< $(Kconfig)
config: $(obj)/conf
$< --oldaskconfig $(Kconfig)
nconfig: $(obj)/nconf
$< $(Kconfig)
oldconfig: $(obj)/conf
$< --$@ $(Kconfig)
silentoldconfig: $(obj)/conf
$(Q)mkdir -p include/generated
$< --$@ $(Kconfig)
localmodconfig: $(obj)/streamline_config.pl $(obj)/conf
$(Q)perl $< $(srctree) $(Kconfig) > .tmp.config
$(Q)if [ -f .config ]; then \
cmp -s .tmp.config .config || \
(mv -f .config .config.old.1; \
mv -f .tmp.config .config; \
$(obj)/conf --silentoldconfig $(Kconfig); \
mv -f .config.old.1 .config.old) \
else \
mv -f .tmp.config .config; \
$(obj)/conf --silentoldconfig $(Kconfig); \
fi
$(Q)rm -f .tmp.config
localyesconfig: $(obj)/streamline_config.pl $(obj)/conf
$(Q)perl $< $(srctree) $(Kconfig) > .tmp.config
$(Q)sed -i s/=m/=y/ .tmp.config
$(Q)if [ -f .config ]; then \
cmp -s .tmp.config .config || \
(mv -f .config .config.old.1; \
mv -f .tmp.config .config; \
$(obj)/conf --silentoldconfig $(Kconfig); \
mv -f .config.old.1 .config.old) \
else \
mv -f .tmp.config .config; \
$(obj)/conf --silentoldconfig $(Kconfig); \
fi
$(Q)rm -f .tmp.config
# Create new linux.pot file
# Adjust charset to UTF-8 in .po file to accept UTF-8 in Kconfig files
# The symlink is used to repair a deficiency in arch/um
update-po-config: $(obj)/kxgettext $(obj)/gconf.glade.h
$(Q)echo " GEN config"
$(Q)xgettext --default-domain=linux \
--add-comments --keyword=_ --keyword=N_ \
--from-code=UTF-8 \
--files-from=scripts/kconfig/POTFILES.in \
--output $(obj)/config.pot
$(Q)sed -i s/CHARSET/UTF-8/ $(obj)/config.pot
$(Q)ln -fs Kconfig.i386 arch/um/Kconfig.arch
$(Q)(for i in `ls arch/*/Kconfig`; \
do \
echo " GEN $$i"; \
$(obj)/kxgettext $$i \
>> $(obj)/config.pot; \
done )
$(Q)msguniq --sort-by-file --to-code=UTF-8 $(obj)/config.pot \
--output $(obj)/linux.pot
$(Q)rm -f arch/um/Kconfig.arch
$(Q)rm -f $(obj)/config.pot
PHONY += allnoconfig allyesconfig allmodconfig alldefconfig randconfig
allnoconfig allyesconfig allmodconfig alldefconfig randconfig: $(obj)/conf
$< --$@ $(Kconfig)
PHONY += listnewconfig oldnoconfig savedefconfig defconfig
listnewconfig oldnoconfig: $(obj)/conf
$< --$@ $(Kconfig)
savedefconfig: $(obj)/conf
$< --$@=defconfig $(Kconfig)
defconfig: $(obj)/conf
ifeq ($(KBUILD_DEFCONFIG),)
$< --defconfig $(Kconfig)
else
@echo "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'"
$(Q)$< --defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig)
endif
%_defconfig: $(obj)/conf
$(Q)$< --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig)
# Help text used by make help
help:
@echo ' config - Update current config utilising a line-oriented program'
@echo ' nconfig - Update current config utilising a ncurses menu based program'
@echo ' menuconfig - Update current config utilising a menu based program'
@echo ' xconfig - Update current config utilising a QT based front-end'
@echo ' gconfig - Update current config utilising a GTK based front-end'
@echo ' oldconfig - Update current config utilising a provided .config as base'
@echo ' localmodconfig - Update current config disabling modules not loaded'
@echo ' localyesconfig - Update current config converting local mods to core'
@echo ' silentoldconfig - Same as oldconfig, but quietly, additionally update deps'
@echo ' defconfig - New config with default from ARCH supplied defconfig'
@echo ' savedefconfig - Save current config as ./defconfig (minimal config)'
@echo ' allnoconfig - New config where all options are answered with no'
@echo ' allyesconfig - New config where all options are accepted with yes'
@echo ' allmodconfig - New config selecting modules when possible'
@echo ' alldefconfig - New config with all symbols set to default'
@echo ' randconfig - New config with random answer to all options'
@echo ' listnewconfig - List new options'
@echo ' oldnoconfig - Same as silentoldconfig but set new symbols to n (unset)'
# lxdialog stuff
check-lxdialog := $(srctree)/$(src)/lxdialog/check-lxdialog.sh
# Use recursively expanded variables so we do not call gcc unless
# we really need to do so. (Do not call gcc as part of make mrproper)
HOST_EXTRACFLAGS = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ccflags)
HOST_LOADLIBES = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ldflags $(HOSTCC))
HOST_EXTRACFLAGS += -DLOCALE
# ===========================================================================
# Shared Makefile for the various kconfig executables:
# conf: Used for defconfig, oldconfig and related targets
# nconf: Used for the nconfig target.
# Utilizes ncurses
# mconf: Used for the menuconfig target
# Utilizes the lxdialog package
# qconf: Used for the xconfig target
# Based on QT which needs to be installed to compile it
# gconf: Used for the gconfig target
# Based on GTK which needs to be installed to compile it
# object files used by all kconfig flavours
lxdialog := lxdialog/checklist.o lxdialog/util.o lxdialog/inputbox.o
lxdialog += lxdialog/textbox.o lxdialog/yesno.o lxdialog/menubox.o
conf-objs := conf.o zconf.tab.o
mconf-objs := mconf.o zconf.tab.o $(lxdialog)
nconf-objs := nconf.o zconf.tab.o nconf.gui.o
kxgettext-objs := kxgettext.o zconf.tab.o
hostprogs-y := conf qconf gconf kxgettext
ifeq ($(MAKECMDGOALS),nconfig)
hostprogs-y += nconf
endif
ifeq ($(MAKECMDGOALS),menuconfig)
hostprogs-y += mconf
endif
ifeq ($(MAKECMDGOALS),xconfig)
qconf-target := 1
endif
ifeq ($(MAKECMDGOALS),gconfig)
gconf-target := 1
endif
ifeq ($(qconf-target),1)
qconf-cxxobjs := qconf.o
qconf-objs := kconfig_load.o zconf.tab.o
endif
ifeq ($(gconf-target),1)
gconf-objs := gconf.o kconfig_load.o zconf.tab.o
endif
clean-files := lkc_defs.h qconf.moc .tmp_qtcheck \
.tmp_gtkcheck zconf.tab.c lex.zconf.c zconf.hash.c gconf.glade.h
clean-files += mconf qconf gconf nconf
clean-files += config.pot linux.pot
# Check that we have the required ncurses stuff installed for lxdialog (menuconfig)
PHONY += $(obj)/dochecklxdialog
$(addprefix $(obj)/,$(lxdialog)): $(obj)/dochecklxdialog
$(obj)/dochecklxdialog:
$(Q)$(CONFIG_SHELL) $(check-lxdialog) -check $(HOSTCC) $(HOST_EXTRACFLAGS) $(HOST_LOADLIBES)
always := dochecklxdialog
# Add environment specific flags
HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(srctree)/$(src)/check.sh $(HOSTCC) $(HOSTCFLAGS))
# generated files seem to need this to find local include files
HOSTCFLAGS_lex.zconf.o := -I$(src)
HOSTCFLAGS_zconf.tab.o := -I$(src)
HOSTLOADLIBES_qconf = $(KC_QT_LIBS) -ldl
HOSTCXXFLAGS_qconf.o = $(KC_QT_CFLAGS) -D LKC_DIRECT_LINK
HOSTLOADLIBES_gconf = `pkg-config --libs gtk+-2.0 gmodule-2.0 libglade-2.0`
HOSTCFLAGS_gconf.o = `pkg-config --cflags gtk+-2.0 gmodule-2.0 libglade-2.0` \
-D LKC_DIRECT_LINK
HOSTLOADLIBES_nconf = -lmenu -lpanel -lncurses
$(obj)/qconf.o: $(obj)/.tmp_qtcheck
ifeq ($(qconf-target),1)
$(obj)/.tmp_qtcheck: $(src)/Makefile
-include $(obj)/.tmp_qtcheck
# QT needs some extra effort...
$(obj)/.tmp_qtcheck:
@set -e; echo " CHECK qt"; dir=""; pkg=""; \
pkg-config --exists qt 2> /dev/null && pkg=qt; \
pkg-config --exists qt-mt 2> /dev/null && pkg=qt-mt; \
if [ -n "$$pkg" ]; then \
cflags="\$$(shell pkg-config $$pkg --cflags)"; \
libs="\$$(shell pkg-config $$pkg --libs)"; \
moc="\$$(shell pkg-config $$pkg --variable=prefix)/bin/moc"; \
dir="$$(pkg-config $$pkg --variable=prefix)"; \
else \
for d in $$QTDIR /usr/share/qt* /usr/lib/qt*; do \
if [ -f $$d/include/qconfig.h ]; then dir=$$d; break; fi; \
done; \
if [ -z "$$dir" ]; then \
echo "*"; \
echo "* Unable to find the QT3 installation. Please make sure that"; \
echo "* the QT3 development package is correctly installed and"; \
echo "* either install pkg-config or set the QTDIR environment"; \
echo "* variable to the correct location."; \
echo "*"; \
false; \
fi; \
libpath=$$dir/lib; lib=qt; osdir=""; \
$(HOSTCXX) -print-multi-os-directory > /dev/null 2>&1 && \
osdir=x$$($(HOSTCXX) -print-multi-os-directory); \
test -d $$libpath/$$osdir && libpath=$$libpath/$$osdir; \
test -f $$libpath/libqt-mt.so && lib=qt-mt; \
cflags="-I$$dir/include"; \
libs="-L$$libpath -Wl,-rpath,$$libpath -l$$lib"; \
moc="$$dir/bin/moc"; \
fi; \
if [ ! -x $$dir/bin/moc -a -x /usr/bin/moc ]; then \
echo "*"; \
echo "* Unable to find $$dir/bin/moc, using /usr/bin/moc instead."; \
echo "*"; \
moc="/usr/bin/moc"; \
fi; \
echo "KC_QT_CFLAGS=$$cflags" > $@; \
echo "KC_QT_LIBS=$$libs" >> $@; \
echo "KC_QT_MOC=$$moc" >> $@
endif
$(obj)/gconf.o: $(obj)/.tmp_gtkcheck
ifeq ($(gconf-target),1)
-include $(obj)/.tmp_gtkcheck
# GTK needs some extra effort, too...
$(obj)/.tmp_gtkcheck:
@if `pkg-config --exists gtk+-2.0 gmodule-2.0 libglade-2.0`; then \
if `pkg-config --atleast-version=2.0.0 gtk+-2.0`; then \
touch $@; \
else \
echo "*"; \
echo "* GTK+ is present but version >= 2.0.0 is required."; \
echo "*"; \
false; \
fi \
else \
echo "*"; \
echo "* Unable to find the GTK+ installation. Please make sure that"; \
echo "* the GTK+ 2.0 development package is correctly installed..."; \
echo "* You need gtk+-2.0, glib-2.0 and libglade-2.0."; \
echo "*"; \
false; \
fi
endif
$(obj)/zconf.tab.o: $(obj)/lex.zconf.c $(obj)/zconf.hash.c
$(obj)/kconfig_load.o: $(obj)/lkc_defs.h
$(obj)/qconf.o: $(obj)/qconf.moc $(obj)/lkc_defs.h
$(obj)/gconf.o: $(obj)/lkc_defs.h
$(obj)/%.moc: $(src)/%.h
$(KC_QT_MOC) -i $< -o $@
$(obj)/lkc_defs.h: $(src)/lkc_proto.h
sed < $< > $@ 's/P(\([^,]*\),.*/#define \1 (\*\1_p)/'
# Extract gconf menu items for I18N support
$(obj)/gconf.glade.h: $(obj)/gconf.glade
intltool-extract --type=gettext/glade $(obj)/gconf.glade
###
# The following requires flex/bison/gperf
# By default we use the _shipped versions, uncomment the following line if
# you are modifying the flex/bison src.
# LKC_GENPARSER := 1
ifdef LKC_GENPARSER
$(obj)/zconf.tab.c: $(src)/zconf.y
$(obj)/lex.zconf.c: $(src)/zconf.l
$(obj)/zconf.hash.c: $(src)/zconf.gperf
%.tab.c: %.y
bison -l -b $* -p $(notdir $*) $<
cp $@ $@_shipped
lex.%.c: %.l
flex -L -P$(notdir $*) -o$@ $<
cp $@ $@_shipped
%.hash.c: %.gperf
gperf < $< > $@
cp $@ $@_shipped
endif
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