1 # ===========================================================================
2 # Kernel configuration targets
3 # These targets are used from top-level makefile
5 # SPDX-License-Identifier: GPL-2.0
8 PHONY += xconfig gconfig menuconfig config silentoldconfig update-po-config \
9 localmodconfig localyesconfig
12 # Linux has defconfig files in arch/$(SRCARCH)/configs/,
13 # on the other hand, U-Boot does in configs/.
14 # Set SRCARCH to .. fake this Makefile.
18 Kconfig := $(KBUILD_KCONFIG)
23 ifeq ($(quiet),silent_)
27 # We need this, in case the user has it in its environment
31 $< $(silent) $(Kconfig)
34 $< $(silent) $(Kconfig)
36 menuconfig: $(obj)/mconf
37 $< $(silent) $(Kconfig)
40 $< $(silent) --oldaskconfig $(Kconfig)
43 $< $(silent) $(Kconfig)
45 silentoldconfig: $(obj)/conf
46 $(Q)mkdir -p include/config include/generated
47 $(Q)test -e include/generated/autoksyms.h || \
48 touch include/generated/autoksyms.h
49 $< $(silent) --$@ $(Kconfig)
51 localyesconfig localmodconfig: $(obj)/streamline_config.pl $(obj)/conf
52 $(Q)mkdir -p include/config include/generated
53 $(Q)perl $< --$@ $(srctree) $(Kconfig) > .tmp.config
54 $(Q)if [ -f .config ]; then \
55 cmp -s .tmp.config .config || \
56 (mv -f .config .config.old.1; \
57 mv -f .tmp.config .config; \
58 $(obj)/conf $(silent) --silentoldconfig $(Kconfig); \
59 mv -f .config.old.1 .config.old) \
61 mv -f .tmp.config .config; \
62 $(obj)/conf $(silent) --silentoldconfig $(Kconfig); \
66 # Create new linux.pot file
67 # Adjust charset to UTF-8 in .po file to accept UTF-8 in Kconfig files
68 update-po-config: $(obj)/kxgettext $(obj)/gconf.glade.h
69 $(Q)$(kecho) " GEN config.pot"
70 $(Q)xgettext --default-domain=linux \
71 --add-comments --keyword=_ --keyword=N_ \
73 --files-from=$(srctree)/scripts/kconfig/POTFILES.in \
74 --directory=$(srctree) --directory=$(objtree) \
75 --output $(obj)/config.pot
76 $(Q)sed -i s/CHARSET/UTF-8/ $(obj)/config.pot
77 $(Q)(for i in `ls $(srctree)/arch/*/Kconfig \
78 $(srctree)/arch/*/um/Kconfig`; \
80 $(kecho) " GEN $$i"; \
81 $(obj)/kxgettext $$i \
82 >> $(obj)/config.pot; \
84 $(Q)$(kecho) " GEN linux.pot"
85 $(Q)msguniq --sort-by-file --to-code=UTF-8 $(obj)/config.pot \
86 --output $(obj)/linux.pot
87 $(Q)rm -f $(obj)/config.pot
89 # These targets map 1:1 to the commandline options of 'conf'
90 simple-targets := oldconfig allnoconfig allyesconfig allmodconfig \
91 alldefconfig randconfig listnewconfig olddefconfig
92 PHONY += $(simple-targets)
94 $(simple-targets): $(obj)/conf
95 $< $(silent) --$@ $(Kconfig)
97 PHONY += oldnoconfig savedefconfig defconfig
99 # oldnoconfig is an alias of olddefconfig, because people already are dependent
100 # on its behavior (sets new symbols to their default value but not 'n') with the
101 # counter-intuitive name.
102 oldnoconfig: olddefconfig
104 savedefconfig: $(obj)/conf
105 $< $(silent) --$@=defconfig $(Kconfig)
107 defconfig: $(obj)/conf
108 ifeq ($(KBUILD_DEFCONFIG),)
109 $< $(silent) --defconfig $(Kconfig)
111 ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)),)
112 @$(kecho) "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'"
113 $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig)
115 @$(kecho) "*** Default configuration is based on target '$(KBUILD_DEFCONFIG)'"
116 $(Q)$(MAKE) -f $(srctree)/Makefile $(KBUILD_DEFCONFIG)
120 %_defconfig: $(obj)/conf
121 $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig)
123 # Added for U-Boot (backward compatibility)
124 %_config: %_defconfig
127 configfiles=$(wildcard $(srctree)/kernel/configs/$@ $(srctree)/arch/$(SRCARCH)/configs/$@)
129 %.config: $(obj)/conf
130 $(if $(call configfiles),, $(error No configuration exists for this target on this architecture))
131 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m .config $(configfiles)
132 +$(Q)yes "" | $(MAKE) -f $(srctree)/Makefile oldconfig
135 kvmconfig: kvm_guest.config
139 xenconfig: xen.config
144 $(Q)$(MAKE) -f $(srctree)/Makefile allnoconfig tiny.config
146 # Help text used by make help
148 @echo ' config - Update current config utilising a line-oriented program'
149 @echo ' nconfig - Update current config utilising a ncurses menu based'
151 @echo ' menuconfig - Update current config utilising a menu based program'
152 @echo ' xconfig - Update current config utilising a Qt based front-end'
153 @echo ' gconfig - Update current config utilising a GTK+ based front-end'
154 @echo ' oldconfig - Update current config utilising a provided .config as base'
155 @echo ' localmodconfig - Update current config disabling modules not loaded'
156 @echo ' localyesconfig - Update current config converting local mods to core'
157 @echo ' silentoldconfig - Same as oldconfig, but quietly, additionally update deps'
158 @echo ' defconfig - New config with default from ARCH supplied defconfig'
159 @echo ' savedefconfig - Save current config as ./defconfig (minimal config)'
160 @echo ' allnoconfig - New config where all options are answered with no'
161 @echo ' allyesconfig - New config where all options are accepted with yes'
162 @echo ' allmodconfig - New config selecting modules when possible'
163 @echo ' alldefconfig - New config with all symbols set to default'
164 @echo ' randconfig - New config with random answer to all options'
165 @echo ' listnewconfig - List new options'
166 @echo ' olddefconfig - Same as silentoldconfig but sets new symbols to their'
167 @echo ' default value'
168 # @echo ' kvmconfig - Enable additional options for kvm guest kernel support'
169 # @echo ' xenconfig - Enable additional options for xen dom0 and guest kernel support'
170 # @echo ' tinyconfig - Configure the tiniest possible kernel'
173 check-lxdialog := $(srctree)/$(src)/lxdialog/check-lxdialog.sh
175 # Use recursively expanded variables so we do not call gcc unless
176 # we really need to do so. (Do not call gcc as part of make mrproper)
177 HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(check-lxdialog) -ccflags) \
180 # ===========================================================================
181 # Shared Makefile for the various kconfig executables:
182 # conf: Used for defconfig, oldconfig and related targets
183 # nconf: Used for the nconfig target.
185 # mconf: Used for the menuconfig target
186 # Utilizes the lxdialog package
187 # qconf: Used for the xconfig target
188 # Based on Qt which needs to be installed to compile it
189 # gconf: Used for the gconfig target
190 # Based on GTK+ which needs to be installed to compile it
191 # object files used by all kconfig flavours
193 lxdialog := lxdialog/checklist.o lxdialog/util.o lxdialog/inputbox.o
194 lxdialog += lxdialog/textbox.o lxdialog/yesno.o lxdialog/menubox.o
196 conf-objs := conf.o zconf.tab.o
197 mconf-objs := mconf.o zconf.tab.o $(lxdialog)
198 nconf-objs := nconf.o zconf.tab.o nconf.gui.o
199 kxgettext-objs := kxgettext.o zconf.tab.o
200 qconf-cxxobjs := qconf.o
201 qconf-objs := zconf.tab.o
202 gconf-objs := gconf.o zconf.tab.o
204 hostprogs-y := conf nconf mconf kxgettext qconf gconf
206 clean-files := qconf.moc .tmp_qtcheck .tmp_gtkcheck
207 clean-files += zconf.tab.c zconf.lex.c zconf.hash.c gconf.glade.h
208 clean-files += config.pot linux.pot
210 # Check that we have the required ncurses stuff installed for lxdialog (menuconfig)
211 PHONY += $(obj)/dochecklxdialog
212 $(addprefix $(obj)/,$(lxdialog)): $(obj)/dochecklxdialog
213 $(obj)/dochecklxdialog:
214 $(Q)$(CONFIG_SHELL) $(check-lxdialog) -check $(HOSTCC) $(HOST_EXTRACFLAGS) $(HOSTLOADLIBES_mconf)
216 always := dochecklxdialog
218 # Add environment specific flags
219 HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(srctree)/$(src)/check.sh $(HOSTCC) $(HOSTCFLAGS))
221 # generated files seem to need this to find local include files
222 HOSTCFLAGS_zconf.lex.o := -I$(src)
223 HOSTCFLAGS_zconf.tab.o := -I$(src)
225 LEX_PREFIX_zconf := zconf
226 YACC_PREFIX_zconf := zconf
228 HOSTLOADLIBES_qconf = $(KC_QT_LIBS)
229 HOSTCXXFLAGS_qconf.o = $(KC_QT_CFLAGS)
231 HOSTLOADLIBES_gconf = `pkg-config --libs gtk+-2.0 gmodule-2.0 libglade-2.0`
232 HOSTCFLAGS_gconf.o = `pkg-config --cflags gtk+-2.0 gmodule-2.0 libglade-2.0` \
233 -Wno-missing-prototypes
235 HOSTLOADLIBES_mconf = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ldflags $(HOSTCC))
237 HOSTLOADLIBES_nconf = $(shell \
238 pkg-config --libs menuw panelw ncursesw 2>/dev/null \
239 || pkg-config --libs menu panel ncurses 2>/dev/null \
240 || echo "-lmenu -lpanel -lncurses" )
241 $(obj)/qconf.o: $(obj)/.tmp_qtcheck
243 ifeq ($(MAKECMDGOALS),xconfig)
244 $(obj)/.tmp_qtcheck: $(src)/Makefile
245 -include $(obj)/.tmp_qtcheck
247 # Qt needs some extra effort...
249 @set -e; $(kecho) " CHECK qt"; \
250 if pkg-config --exists Qt5Core; then \
251 cflags="-std=c++11 -fPIC `pkg-config --cflags Qt5Core Qt5Gui Qt5Widgets`"; \
252 libs=`pkg-config --libs Qt5Core Qt5Gui Qt5Widgets`; \
253 moc=`pkg-config --variable=host_bins Qt5Core`/moc; \
254 elif pkg-config --exists QtCore; then \
255 cflags=`pkg-config --cflags QtCore QtGui`; \
256 libs=`pkg-config --libs QtCore QtGui`; \
257 moc=`pkg-config --variable=moc_location QtCore`; \
260 echo >&2 "* Could not find Qt via pkg-config."; \
261 echo >&2 "* Please install either Qt 4.8 or 5.x. and make sure it's in PKG_CONFIG_PATH"; \
265 echo "KC_QT_CFLAGS=$$cflags" > $@; \
266 echo "KC_QT_LIBS=$$libs" >> $@; \
267 echo "KC_QT_MOC=$$moc" >> $@
270 $(obj)/gconf.o: $(obj)/.tmp_gtkcheck
272 ifeq ($(MAKECMDGOALS),gconfig)
273 -include $(obj)/.tmp_gtkcheck
275 # GTK+ needs some extra effort, too...
276 $(obj)/.tmp_gtkcheck:
277 @if `pkg-config --exists gtk+-2.0 gmodule-2.0 libglade-2.0`; then \
278 if `pkg-config --atleast-version=2.0.0 gtk+-2.0`; then \
282 echo >&2 "* GTK+ is present but version >= 2.0.0 is required."; \
288 echo >&2 "* Unable to find the GTK+ installation. Please make sure that"; \
289 echo >&2 "* the GTK+ 2.0 development package is correctly installed..."; \
290 echo >&2 "* You need gtk+-2.0, glib-2.0 and libglade-2.0."; \
296 $(obj)/zconf.tab.o: $(obj)/zconf.lex.c $(obj)/zconf.hash.c
298 $(obj)/qconf.o: $(obj)/qconf.moc
300 quiet_cmd_moc = MOC $@
301 cmd_moc = $(KC_QT_MOC) -i $< -o $@
303 $(obj)/%.moc: $(src)/%.h $(obj)/.tmp_qtcheck
306 # Extract gconf menu items for i18n support
307 $(obj)/gconf.glade.h: $(obj)/gconf.glade
308 $(Q)intltool-extract --type=gettext/glade --srcdir=$(srctree) \