1# SPDX-License-Identifier: GPL-2.0 2# =========================================================================== 3# Kernel configuration targets 4# These targets are used from top-level makefile 5 6PHONY += xconfig gconfig menuconfig config syncconfig update-po-config \ 7 localmodconfig localyesconfig 8 9# Added for U-Boot 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. 13SRCARCH := .. 14 15ifdef KBUILD_KCONFIG 16Kconfig := $(KBUILD_KCONFIG) 17else 18Kconfig := Kconfig 19endif 20 21ifeq ($(quiet),silent_) 22silent := -s 23endif 24 25# We need this, in case the user has it in its environment 26unexport CONFIG_ 27 28xconfig: $(obj)/qconf 29 $< $(silent) $(Kconfig) 30 31gconfig: $(obj)/gconf 32 $< $(silent) $(Kconfig) 33 34menuconfig: $(obj)/mconf 35 $< $(silent) $(Kconfig) 36 37config: $(obj)/conf 38 $< $(silent) --oldaskconfig $(Kconfig) 39 40nconfig: $(obj)/nconf 41 $< $(silent) $(Kconfig) 42 43# This has become an internal implementation detail and is now deprecated 44# for external use. 45syncconfig: $(obj)/conf 46 $(Q)mkdir -p include/config include/generated 47 $< $(silent) --$@ $(Kconfig) 48 49localyesconfig localmodconfig: $(obj)/conf 50 $(Q)mkdir -p include/config include/generated 51 $(Q)perl $(srctree)/$(src)/streamline_config.pl --$@ $(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 $< $(silent) --oldconfig $(Kconfig); \ 57 mv -f .config.old.1 .config.old) \ 58 else \ 59 mv -f .tmp.config .config; \ 60 $< $(silent) --oldconfig $(Kconfig); \ 61 fi 62 $(Q)rm -f .tmp.config 63 64# Create new linux.pot file 65# Adjust charset to UTF-8 in .po file to accept UTF-8 in Kconfig files 66update-po-config: $(obj)/kxgettext $(obj)/gconf.glade.h 67 $(Q)$(kecho) " GEN config.pot" 68 $(Q)xgettext --default-domain=linux \ 69 --add-comments --keyword=_ --keyword=N_ \ 70 --from-code=UTF-8 \ 71 --files-from=$(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`; \ 77 do \ 78 $(kecho) " GEN $$i"; \ 79 $(obj)/kxgettext $$i \ 80 >> $(obj)/config.pot; \ 81 done ) 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 86 87# These targets map 1:1 to the commandline options of 'conf' 88simple-targets := oldconfig allnoconfig allyesconfig allmodconfig \ 89 alldefconfig randconfig listnewconfig olddefconfig 90PHONY += $(simple-targets) 91 92$(simple-targets): $(obj)/conf 93 $< $(silent) --$@ $(Kconfig) 94 95PHONY += oldnoconfig silentoldconfig savedefconfig defconfig 96 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. 100oldnoconfig: olddefconfig 101 @echo " WARNING: \"oldnoconfig\" target will be removed after Linux 4.19" 102 @echo " Please use \"olddefconfig\" instead, which is an alias." 103 104# We do not expect manual invokcation of "silentoldcofig" (or "syncconfig"). 105silentoldconfig: syncconfig 106 @echo " WARNING: \"silentoldconfig\" has been renamed to \"syncconfig\"" 107 @echo " and is now an internal implementation detail." 108 @echo " What you want is probably \"oldconfig\"." 109 @echo " \"silentoldconfig\" will be removed after Linux 4.19" 110 111savedefconfig: $(obj)/conf 112 $< $(silent) --$@=defconfig $(Kconfig) 113 114defconfig: $(obj)/conf 115ifeq ($(KBUILD_DEFCONFIG),) 116 $< $(silent) --defconfig $(Kconfig) 117else 118ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)),) 119 @$(kecho) "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'" 120 $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig) 121else 122 @$(kecho) "*** Default configuration is based on target '$(KBUILD_DEFCONFIG)'" 123 $(Q)$(MAKE) -f $(srctree)/Makefile $(KBUILD_DEFCONFIG) 124endif 125endif 126 127%_defconfig: $(obj)/conf 128 $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig) 129 130# Added for U-Boot (backward compatibility) 131%_config: %_defconfig 132 @: 133 134configfiles=$(wildcard $(srctree)/kernel/configs/$@ $(srctree)/arch/$(SRCARCH)/configs/$@) 135 136%.config: $(obj)/conf 137 $(if $(call configfiles),, $(error No configuration exists for this target on this architecture)) 138 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m .config $(configfiles) 139 +$(Q)yes "" | $(MAKE) -f $(srctree)/Makefile oldconfig 140 141PHONY += kvmconfig 142kvmconfig: kvm_guest.config 143 @: 144 145PHONY += xenconfig 146xenconfig: xen.config 147 @: 148 149PHONY += tinyconfig 150tinyconfig: 151 $(Q)$(MAKE) -f $(srctree)/Makefile allnoconfig tiny.config 152 153# CHECK: -o cache_dir=<path> working? 154PHONY += testconfig 155testconfig: $(obj)/conf 156 $(PYTHON3) -B -m pytest $(srctree)/$(src)/tests \ 157 -o cache_dir=$(abspath $(obj)/tests/.cache) \ 158 $(if $(findstring 1,$(KBUILD_VERBOSE)),--capture=no) 159clean-dirs += tests/.cache 160 161# Help text used by make help 162help: 163 @echo ' config - Update current config utilising a line-oriented program' 164 @echo ' nconfig - Update current config utilising a ncurses menu based' 165 @echo ' program' 166 @echo ' menuconfig - Update current config utilising a menu based program' 167 @echo ' xconfig - Update current config utilising a Qt based front-end' 168 @echo ' gconfig - Update current config utilising a GTK+ based front-end' 169 @echo ' oldconfig - Update current config utilising a provided .config as base' 170 @echo ' localmodconfig - Update current config disabling modules not loaded' 171 @echo ' localyesconfig - Update current config converting local mods to core' 172 @echo ' defconfig - New config with default from ARCH supplied defconfig' 173 @echo ' savedefconfig - Save current config as ./defconfig (minimal config)' 174 @echo ' allnoconfig - New config where all options are answered with no' 175 @echo ' allyesconfig - New config where all options are accepted with yes' 176 @echo ' allmodconfig - New config selecting modules when possible' 177 @echo ' alldefconfig - New config with all symbols set to default' 178 @echo ' randconfig - New config with random answer to all options' 179 @echo ' listnewconfig - List new options' 180 @echo ' olddefconfig - Same as oldconfig but sets new symbols to their' 181 @echo ' default value without prompting' 182# @echo ' kvmconfig - Enable additional options for kvm guest kernel support' 183# @echo ' xenconfig - Enable additional options for xen dom0 and guest kernel support' 184# @echo ' tinyconfig - Configure the tiniest possible kernel' 185 186# lxdialog stuff 187check-lxdialog := $(srctree)/$(src)/lxdialog/check-lxdialog.sh 188 189# Use recursively expanded variables so we do not call gcc unless 190# we really need to do so. (Do not call gcc as part of make mrproper) 191HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(check-lxdialog) -ccflags) \ 192 -DLOCALE 193 194# =========================================================================== 195# Shared Makefile for the various kconfig executables: 196# conf: Used for defconfig, oldconfig and related targets 197# nconf: Used for the nconfig target. 198# Utilizes ncurses 199# mconf: Used for the menuconfig target 200# Utilizes the lxdialog package 201# qconf: Used for the xconfig target 202# Based on Qt which needs to be installed to compile it 203# gconf: Used for the gconfig target 204# Based on GTK+ which needs to be installed to compile it 205# object files used by all kconfig flavours 206 207lxdialog := lxdialog/checklist.o lxdialog/util.o lxdialog/inputbox.o 208lxdialog += lxdialog/textbox.o lxdialog/yesno.o lxdialog/menubox.o 209 210conf-objs := conf.o zconf.tab.o 211mconf-objs := mconf.o zconf.tab.o $(lxdialog) 212nconf-objs := nconf.o zconf.tab.o nconf.gui.o 213kxgettext-objs := kxgettext.o zconf.tab.o 214qconf-cxxobjs := qconf.o 215qconf-objs := zconf.tab.o 216gconf-objs := gconf.o zconf.tab.o 217 218hostprogs-y := conf nconf mconf kxgettext qconf gconf 219 220targets += zconf.lex.c 221clean-files := qconf.moc .tmp_qtcheck .tmp_gtkcheck 222clean-files += gconf.glade.h 223clean-files += config.pot linux.pot 224 225# Check that we have the required ncurses stuff installed for lxdialog (menuconfig) 226PHONY += $(obj)/dochecklxdialog 227$(addprefix $(obj)/, mconf.o $(lxdialog)): $(obj)/dochecklxdialog 228$(obj)/dochecklxdialog: 229 $(Q)$(CONFIG_SHELL) $(check-lxdialog) -check $(HOSTCC) $(HOST_EXTRACFLAGS) $(HOSTLOADLIBES_mconf) 230 231always := dochecklxdialog 232 233# Add environment specific flags 234HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(srctree)/$(src)/check.sh $(HOSTCC) $(HOSTCFLAGS)) 235HOST_EXTRACXXFLAGS += $(shell $(CONFIG_SHELL) $(srctree)/$(src)/check.sh $(HOSTCXX) $(HOSTCXXFLAGS)) 236 237# generated files seem to need this to find local include files 238HOSTCFLAGS_zconf.lex.o := -I$(src) 239HOSTCFLAGS_zconf.tab.o := -I$(src) 240 241HOSTLOADLIBES_qconf = $(KC_QT_LIBS) 242HOSTCXXFLAGS_qconf.o = $(KC_QT_CFLAGS) 243 244HOSTLOADLIBES_gconf = `pkg-config --libs gtk+-2.0 gmodule-2.0 libglade-2.0` 245HOSTCFLAGS_gconf.o = `pkg-config --cflags gtk+-2.0 gmodule-2.0 libglade-2.0` \ 246 -Wno-missing-prototypes 247 248HOSTLOADLIBES_mconf = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ldflags $(HOSTCC)) 249 250HOSTLOADLIBES_nconf = $(shell \ 251 pkg-config --libs menuw panelw ncursesw 2>/dev/null \ 252 || pkg-config --libs menu panel ncurses 2>/dev/null \ 253 || echo "-lmenu -lpanel -lncurses" ) 254$(obj)/qconf.o: $(obj)/.tmp_qtcheck 255 256ifeq ($(MAKECMDGOALS),xconfig) 257$(obj)/.tmp_qtcheck: $(src)/Makefile 258-include $(obj)/.tmp_qtcheck 259 260# Qt needs some extra effort... 261$(obj)/.tmp_qtcheck: 262 @set -e; $(kecho) " CHECK qt"; \ 263 if pkg-config --exists Qt5Core; then \ 264 cflags="-std=c++11 -fPIC `pkg-config --cflags Qt5Core Qt5Gui Qt5Widgets`"; \ 265 libs=`pkg-config --libs Qt5Core Qt5Gui Qt5Widgets`; \ 266 moc=`pkg-config --variable=host_bins Qt5Core`/moc; \ 267 elif pkg-config --exists QtCore; then \ 268 cflags=`pkg-config --cflags QtCore QtGui`; \ 269 libs=`pkg-config --libs QtCore QtGui`; \ 270 moc=`pkg-config --variable=moc_location QtCore`; \ 271 else \ 272 echo >&2 "*"; \ 273 echo >&2 "* Could not find Qt via pkg-config."; \ 274 echo >&2 "* Please install either Qt 4.8 or 5.x. and make sure it's in PKG_CONFIG_PATH"; \ 275 echo >&2 "*"; \ 276 exit 1; \ 277 fi; \ 278 echo "KC_QT_CFLAGS=$$cflags" > $@; \ 279 echo "KC_QT_LIBS=$$libs" >> $@; \ 280 echo "KC_QT_MOC=$$moc" >> $@ 281endif 282 283$(obj)/gconf.o: $(obj)/.tmp_gtkcheck 284 285ifeq ($(MAKECMDGOALS),gconfig) 286-include $(obj)/.tmp_gtkcheck 287 288# GTK+ needs some extra effort, too... 289$(obj)/.tmp_gtkcheck: 290 @if `pkg-config --exists gtk+-2.0 gmodule-2.0 libglade-2.0`; then \ 291 if `pkg-config --atleast-version=2.0.0 gtk+-2.0`; then \ 292 touch $@; \ 293 else \ 294 echo >&2 "*"; \ 295 echo >&2 "* GTK+ is present but version >= 2.0.0 is required."; \ 296 echo >&2 "*"; \ 297 false; \ 298 fi \ 299 else \ 300 echo >&2 "*"; \ 301 echo >&2 "* Unable to find the GTK+ installation. Please make sure that"; \ 302 echo >&2 "* the GTK+ 2.0 development package is correctly installed..."; \ 303 echo >&2 "* You need gtk+-2.0, glib-2.0 and libglade-2.0."; \ 304 echo >&2 "*"; \ 305 false; \ 306 fi 307endif 308 309$(obj)/zconf.tab.o: $(obj)/zconf.lex.c 310 311$(obj)/qconf.o: $(obj)/qconf.moc 312 313quiet_cmd_moc = MOC $@ 314 cmd_moc = $(KC_QT_MOC) -i $< -o $@ 315 316$(obj)/%.moc: $(src)/%.h $(obj)/.tmp_qtcheck 317 $(call cmd,moc) 318 319# Extract gconf menu items for i18n support 320$(obj)/gconf.glade.h: $(obj)/gconf.glade 321 $(Q)intltool-extract --type=gettext/glade --srcdir=$(srctree) \ 322 $(obj)/gconf.glade 323