1 # SPDX-License-Identifier: GPL-2.0
2 # ===========================================================================
3 # Kernel configuration targets
4 # These targets are used from top-level makefile
6 PHONY += xconfig gconfig menuconfig config silentoldconfig update-po-config \
7 localmodconfig localyesconfig
10 # Linux has defconfig files in arch/$(SRCARCH)/configs/,
11 # on the other hand, U-Boot does in configs/.
12 # Set SRCARCH to .. fake this Makefile.
16 Kconfig := $(KBUILD_KCONFIG)
21 ifeq ($(quiet),silent_)
25 # We need this, in case the user has it in its environment
29 $< $(silent) $(Kconfig)
32 $< $(silent) $(Kconfig)
34 menuconfig: $(obj)/mconf
35 $< $(silent) $(Kconfig)
38 $< $(silent) --oldaskconfig $(Kconfig)
41 $< $(silent) $(Kconfig)
43 silentoldconfig: $(obj)/conf
44 $(Q)mkdir -p include/config include/generated
45 $(Q)test -e include/generated/autoksyms.h || \
46 touch include/generated/autoksyms.h
47 $< $(silent) --$@ $(Kconfig)
49 localyesconfig localmodconfig: $(obj)/streamline_config.pl $(obj)/conf
50 $(Q)mkdir -p include/config include/generated
51 $(Q)perl $< --$@ $(srctree) $(Kconfig) > .tmp.config
52 $(Q)if [ -f .config ]; then \
53 cmp -s .tmp.config .config || \
54 (mv -f .config .config.old.1; \
55 mv -f .tmp.config .config; \
56 $(obj)/conf $(silent) --silentoldconfig $(Kconfig); \
57 mv -f .config.old.1 .config.old) \
59 mv -f .tmp.config .config; \
60 $(obj)/conf $(silent) --silentoldconfig $(Kconfig); \
64 # Create new linux.pot file
65 # Adjust charset to UTF-8 in .po file to accept UTF-8 in Kconfig files
66 update-po-config: $(obj)/kxgettext $(obj)/gconf.glade.h
67 $(Q)$(kecho) " GEN config.pot"
68 $(Q)xgettext --default-domain=linux \
69 --add-comments --keyword=_ --keyword=N_ \
71 --files-from=$(srctree)/scripts/kconfig/POTFILES.in \
72 --directory=$(srctree) --directory=$(objtree) \
73 --output $(obj)/config.pot
74 $(Q)sed -i s/CHARSET/UTF-8/ $(obj)/config.pot
75 $(Q)(for i in `ls $(srctree)/arch/*/Kconfig \
76 $(srctree)/arch/*/um/Kconfig`; \
78 $(kecho) " GEN $$i"; \
79 $(obj)/kxgettext $$i \
80 >> $(obj)/config.pot; \
82 $(Q)$(kecho) " GEN linux.pot"
83 $(Q)msguniq --sort-by-file --to-code=UTF-8 $(obj)/config.pot \
84 --output $(obj)/linux.pot
85 $(Q)rm -f $(obj)/config.pot
87 # These targets map 1:1 to the commandline options of 'conf'
88 simple-targets := oldconfig allnoconfig allyesconfig allmodconfig \
89 alldefconfig randconfig listnewconfig olddefconfig
90 PHONY += $(simple-targets)
92 $(simple-targets): $(obj)/conf
93 $< $(silent) --$@ $(Kconfig)
95 PHONY += oldnoconfig savedefconfig defconfig
97 # oldnoconfig is an alias of olddefconfig, because people already are dependent
98 # on its behavior (sets new symbols to their default value but not 'n') with the
99 # counter-intuitive name.
100 oldnoconfig: olddefconfig
102 savedefconfig: $(obj)/conf
103 $< $(silent) --$@=defconfig $(Kconfig)
105 defconfig: $(obj)/conf
106 ifeq ($(KBUILD_DEFCONFIG),)
107 $< $(silent) --defconfig $(Kconfig)
109 ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)),)
110 @$(kecho) "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'"
111 $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig)
113 @$(kecho) "*** Default configuration is based on target '$(KBUILD_DEFCONFIG)'"
114 $(Q)$(MAKE) -f $(srctree)/Makefile $(KBUILD_DEFCONFIG)
118 %_defconfig: $(obj)/conf
119 $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig)
121 # Added for U-Boot (backward compatibility)
122 %_config: %_defconfig
125 configfiles=$(wildcard $(srctree)/kernel/configs/$@ $(srctree)/arch/$(SRCARCH)/configs/$@)
127 %.config: $(obj)/conf
128 $(if $(call configfiles),, $(error No configuration exists for this target on this architecture))
129 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m .config $(configfiles)
130 +$(Q)yes "" | $(MAKE) -f $(srctree)/Makefile oldconfig
133 kvmconfig: kvm_guest.config
137 xenconfig: xen.config
142 $(Q)$(MAKE) -f $(srctree)/Makefile allnoconfig tiny.config
144 # Help text used by make help
146 @echo ' config - Update current config utilising a line-oriented program'
147 @echo ' nconfig - Update current config utilising a ncurses menu based'
149 @echo ' menuconfig - Update current config utilising a menu based program'
150 @echo ' xconfig - Update current config utilising a Qt based front-end'
151 @echo ' gconfig - Update current config utilising a GTK+ based front-end'
152 @echo ' oldconfig - Update current config utilising a provided .config as base'
153 @echo ' localmodconfig - Update current config disabling modules not loaded'
154 @echo ' localyesconfig - Update current config converting local mods to core'
155 @echo ' silentoldconfig - Same as oldconfig, but quietly, additionally update deps'
156 @echo ' defconfig - New config with default from ARCH supplied defconfig'
157 @echo ' savedefconfig - Save current config as ./defconfig (minimal config)'
158 @echo ' allnoconfig - New config where all options are answered with no'
159 @echo ' allyesconfig - New config where all options are accepted with yes'
160 @echo ' allmodconfig - New config selecting modules when possible'
161 @echo ' alldefconfig - New config with all symbols set to default'
162 @echo ' randconfig - New config with random answer to all options'
163 @echo ' listnewconfig - List new options'
164 @echo ' olddefconfig - Same as silentoldconfig but sets new symbols to their'
165 @echo ' default value'
166 # @echo ' kvmconfig - Enable additional options for kvm guest kernel support'
167 # @echo ' xenconfig - Enable additional options for xen dom0 and guest kernel support'
168 # @echo ' tinyconfig - Configure the tiniest possible kernel'
171 check-lxdialog := $(srctree)/$(src)/lxdialog/check-lxdialog.sh
173 # Use recursively expanded variables so we do not call gcc unless
174 # we really need to do so. (Do not call gcc as part of make mrproper)
175 HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(check-lxdialog) -ccflags) \
178 # ===========================================================================
179 # Shared Makefile for the various kconfig executables:
180 # conf: Used for defconfig, oldconfig and related targets
181 # nconf: Used for the nconfig target.
183 # mconf: Used for the menuconfig target
184 # Utilizes the lxdialog package
185 # qconf: Used for the xconfig target
186 # Based on Qt which needs to be installed to compile it
187 # gconf: Used for the gconfig target
188 # Based on GTK+ which needs to be installed to compile it
189 # object files used by all kconfig flavours
191 lxdialog := lxdialog/checklist.o lxdialog/util.o lxdialog/inputbox.o
192 lxdialog += lxdialog/textbox.o lxdialog/yesno.o lxdialog/menubox.o
194 conf-objs := conf.o zconf.tab.o
195 mconf-objs := mconf.o zconf.tab.o $(lxdialog)
196 nconf-objs := nconf.o zconf.tab.o nconf.gui.o
197 kxgettext-objs := kxgettext.o zconf.tab.o
198 qconf-cxxobjs := qconf.o
199 qconf-objs := zconf.tab.o
200 gconf-objs := gconf.o zconf.tab.o
202 hostprogs-y := conf nconf mconf kxgettext qconf gconf
204 clean-files := qconf.moc .tmp_qtcheck .tmp_gtkcheck
205 clean-files += zconf.tab.c zconf.lex.c zconf.hash.c gconf.glade.h
206 clean-files += config.pot linux.pot
208 # Check that we have the required ncurses stuff installed for lxdialog (menuconfig)
209 PHONY += $(obj)/dochecklxdialog
210 $(addprefix $(obj)/,$(lxdialog)): $(obj)/dochecklxdialog
211 $(obj)/dochecklxdialog:
212 $(Q)$(CONFIG_SHELL) $(check-lxdialog) -check $(HOSTCC) $(HOST_EXTRACFLAGS) $(HOSTLOADLIBES_mconf)
214 always := dochecklxdialog
216 # Add environment specific flags
217 HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(srctree)/$(src)/check.sh $(HOSTCC) $(HOSTCFLAGS))
219 # generated files seem to need this to find local include files
220 HOSTCFLAGS_zconf.lex.o := -I$(src)
221 HOSTCFLAGS_zconf.tab.o := -I$(src)
223 LEX_PREFIX_zconf := zconf
224 YACC_PREFIX_zconf := zconf
226 HOSTLOADLIBES_qconf = $(KC_QT_LIBS)
227 HOSTCXXFLAGS_qconf.o = $(KC_QT_CFLAGS)
229 HOSTLOADLIBES_gconf = `pkg-config --libs gtk+-2.0 gmodule-2.0 libglade-2.0`
230 HOSTCFLAGS_gconf.o = `pkg-config --cflags gtk+-2.0 gmodule-2.0 libglade-2.0` \
231 -Wno-missing-prototypes
233 HOSTLOADLIBES_mconf = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ldflags $(HOSTCC))
235 HOSTLOADLIBES_nconf = $(shell \
236 pkg-config --libs menuw panelw ncursesw 2>/dev/null \
237 || pkg-config --libs menu panel ncurses 2>/dev/null \
238 || echo "-lmenu -lpanel -lncurses" )
239 $(obj)/qconf.o: $(obj)/.tmp_qtcheck
241 ifeq ($(MAKECMDGOALS),xconfig)
242 $(obj)/.tmp_qtcheck: $(src)/Makefile
243 -include $(obj)/.tmp_qtcheck
245 # Qt needs some extra effort...
247 @set -e; $(kecho) " CHECK qt"; \
248 if pkg-config --exists Qt5Core; then \
249 cflags="-std=c++11 -fPIC `pkg-config --cflags Qt5Core Qt5Gui Qt5Widgets`"; \
250 libs=`pkg-config --libs Qt5Core Qt5Gui Qt5Widgets`; \
251 moc=`pkg-config --variable=host_bins Qt5Core`/moc; \
252 elif pkg-config --exists QtCore; then \
253 cflags=`pkg-config --cflags QtCore QtGui`; \
254 libs=`pkg-config --libs QtCore QtGui`; \
255 moc=`pkg-config --variable=moc_location QtCore`; \
258 echo >&2 "* Could not find Qt via pkg-config."; \
259 echo >&2 "* Please install either Qt 4.8 or 5.x. and make sure it's in PKG_CONFIG_PATH"; \
263 echo "KC_QT_CFLAGS=$$cflags" > $@; \
264 echo "KC_QT_LIBS=$$libs" >> $@; \
265 echo "KC_QT_MOC=$$moc" >> $@
268 $(obj)/gconf.o: $(obj)/.tmp_gtkcheck
270 ifeq ($(MAKECMDGOALS),gconfig)
271 -include $(obj)/.tmp_gtkcheck
273 # GTK+ needs some extra effort, too...
274 $(obj)/.tmp_gtkcheck:
275 @if `pkg-config --exists gtk+-2.0 gmodule-2.0 libglade-2.0`; then \
276 if `pkg-config --atleast-version=2.0.0 gtk+-2.0`; then \
280 echo >&2 "* GTK+ is present but version >= 2.0.0 is required."; \
286 echo >&2 "* Unable to find the GTK+ installation. Please make sure that"; \
287 echo >&2 "* the GTK+ 2.0 development package is correctly installed..."; \
288 echo >&2 "* You need gtk+-2.0, glib-2.0 and libglade-2.0."; \
294 $(obj)/zconf.tab.o: $(obj)/zconf.lex.c $(obj)/zconf.hash.c
296 $(obj)/qconf.o: $(obj)/qconf.moc
298 quiet_cmd_moc = MOC $@
299 cmd_moc = $(KC_QT_MOC) -i $< -o $@
301 $(obj)/%.moc: $(src)/%.h $(obj)/.tmp_qtcheck
304 # Extract gconf menu items for i18n support
305 $(obj)/gconf.glade.h: $(obj)/gconf.glade
306 $(Q)intltool-extract --type=gettext/glade --srcdir=$(srctree) \