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 9ifdef KBUILD_KCONFIG 10Kconfig := $(KBUILD_KCONFIG) 11else 12Kconfig := Kconfig 13endif 14 15ifeq ($(quiet),silent_) 16silent := -s 17endif 18 19# We need this, in case the user has it in its environment 20unexport CONFIG_ 21 22xconfig: $(obj)/qconf 23 $< $(silent) $(Kconfig) 24 25gconfig: $(obj)/gconf 26 $< $(silent) $(Kconfig) 27 28menuconfig: $(obj)/mconf 29 $< $(silent) $(Kconfig) 30 31config: $(obj)/conf 32 $< $(silent) --oldaskconfig $(Kconfig) 33 34nconfig: $(obj)/nconf 35 $< $(silent) $(Kconfig) 36 37# This has become an internal implementation detail and is now deprecated 38# for external use. 39syncconfig: $(obj)/conf 40 $(Q)mkdir -p include/config include/generated 41 $< $(silent) --$@ $(Kconfig) 42 43localyesconfig localmodconfig: $(obj)/conf 44 $(Q)mkdir -p include/config include/generated 45 $(Q)perl $(srctree)/$(src)/streamline_config.pl --$@ $(srctree) $(Kconfig) > .tmp.config 46 $(Q)if [ -f .config ]; then \ 47 cmp -s .tmp.config .config || \ 48 (mv -f .config .config.old.1; \ 49 mv -f .tmp.config .config; \ 50 $< $(silent) --oldconfig $(Kconfig); \ 51 mv -f .config.old.1 .config.old) \ 52 else \ 53 mv -f .tmp.config .config; \ 54 $< $(silent) --oldconfig $(Kconfig); \ 55 fi 56 $(Q)rm -f .tmp.config 57 58# Create new linux.pot file 59# Adjust charset to UTF-8 in .po file to accept UTF-8 in Kconfig files 60update-po-config: $(obj)/kxgettext $(obj)/gconf.glade.h 61 $(Q)$(kecho) " GEN config.pot" 62 $(Q)xgettext --default-domain=linux \ 63 --add-comments --keyword=_ --keyword=N_ \ 64 --from-code=UTF-8 \ 65 --files-from=$(srctree)/scripts/kconfig/POTFILES.in \ 66 --directory=$(srctree) --directory=$(objtree) \ 67 --output $(obj)/config.pot 68 $(Q)sed -i s/CHARSET/UTF-8/ $(obj)/config.pot 69 $(Q)(for i in `ls $(srctree)/arch/*/Kconfig \ 70 $(srctree)/arch/*/um/Kconfig`; \ 71 do \ 72 $(kecho) " GEN $$i"; \ 73 $(obj)/kxgettext $$i \ 74 >> $(obj)/config.pot; \ 75 done ) 76 $(Q)$(kecho) " GEN linux.pot" 77 $(Q)msguniq --sort-by-file --to-code=UTF-8 $(obj)/config.pot \ 78 --output $(obj)/linux.pot 79 $(Q)rm -f $(obj)/config.pot 80 81# These targets map 1:1 to the commandline options of 'conf' 82simple-targets := oldconfig allnoconfig allyesconfig allmodconfig \ 83 alldefconfig randconfig listnewconfig olddefconfig 84PHONY += $(simple-targets) 85 86$(simple-targets): $(obj)/conf 87 $< $(silent) --$@ $(Kconfig) 88 89PHONY += oldnoconfig silentoldconfig savedefconfig defconfig 90 91# oldnoconfig is an alias of olddefconfig, because people already are dependent 92# on its behavior (sets new symbols to their default value but not 'n') with the 93# counter-intuitive name. 94oldnoconfig: olddefconfig 95 @echo " WARNING: \"oldnoconfig\" target will be removed after Linux 4.19" 96 @echo " Please use \"olddefconfig\" instead, which is an alias." 97 98# We do not expect manual invokcation of "silentoldcofig" (or "syncconfig"). 99silentoldconfig: syncconfig 100 @echo " WARNING: \"silentoldconfig\" has been renamed to \"syncconfig\"" 101 @echo " and is now an internal implementation detail." 102 @echo " What you want is probably \"oldconfig\"." 103 @echo " \"silentoldconfig\" will be removed after Linux 4.19" 104 105savedefconfig: $(obj)/conf 106 $< $(silent) --$@=defconfig $(Kconfig) 107 108defconfig: $(obj)/conf 109ifeq ($(KBUILD_DEFCONFIG),) 110 $< $(silent) --defconfig $(Kconfig) 111else 112ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)),) 113 @$(kecho) "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'" 114 $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig) 115else 116 @$(kecho) "*** Default configuration is based on target '$(KBUILD_DEFCONFIG)'" 117 $(Q)$(MAKE) -f $(srctree)/Makefile $(KBUILD_DEFCONFIG) 118endif 119endif 120 121%_defconfig: $(obj)/conf 122 $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig) 123 124configfiles=$(wildcard $(srctree)/kernel/configs/$@ $(srctree)/arch/$(SRCARCH)/configs/$@) 125 126%.config: $(obj)/conf 127 $(if $(call configfiles),, $(error No configuration exists for this target on this architecture)) 128 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m .config $(configfiles) 129 +$(Q)yes "" | $(MAKE) -f $(srctree)/Makefile oldconfig 130 131PHONY += kvmconfig 132kvmconfig: kvm_guest.config 133 @: 134 135PHONY += xenconfig 136xenconfig: xen.config 137 @: 138 139PHONY += tinyconfig 140tinyconfig: 141 $(Q)$(MAKE) -f $(srctree)/Makefile allnoconfig tiny.config 142 143# CHECK: -o cache_dir=<path> working? 144PHONY += testconfig 145testconfig: $(obj)/conf 146 $(PYTHON3) -B -m pytest $(srctree)/$(src)/tests \ 147 -o cache_dir=$(abspath $(obj)/tests/.cache) \ 148 $(if $(findstring 1,$(KBUILD_VERBOSE)),--capture=no) 149clean-dirs += tests/.cache 150 151# Help text used by make help 152help: 153 @echo ' config - Update current config utilising a line-oriented program' 154 @echo ' nconfig - Update current config utilising a ncurses menu based' 155 @echo ' program' 156 @echo ' menuconfig - Update current config utilising a menu based program' 157 @echo ' xconfig - Update current config utilising a Qt based front-end' 158 @echo ' gconfig - Update current config utilising a GTK+ based front-end' 159 @echo ' oldconfig - Update current config utilising a provided .config as base' 160 @echo ' localmodconfig - Update current config disabling modules not loaded' 161 @echo ' localyesconfig - Update current config converting local mods to core' 162 @echo ' defconfig - New config with default from ARCH supplied defconfig' 163 @echo ' savedefconfig - Save current config as ./defconfig (minimal config)' 164 @echo ' allnoconfig - New config where all options are answered with no' 165 @echo ' allyesconfig - New config where all options are accepted with yes' 166 @echo ' allmodconfig - New config selecting modules when possible' 167 @echo ' alldefconfig - New config with all symbols set to default' 168 @echo ' randconfig - New config with random answer to all options' 169 @echo ' listnewconfig - List new options' 170 @echo ' olddefconfig - Same as oldconfig but sets new symbols to their' 171 @echo ' default value without prompting' 172 @echo ' kvmconfig - Enable additional options for kvm guest kernel support' 173 @echo ' xenconfig - Enable additional options for xen dom0 and guest kernel support' 174 @echo ' tinyconfig - Configure the tiniest possible kernel' 175 176# lxdialog stuff 177check-lxdialog := $(srctree)/$(src)/lxdialog/check-lxdialog.sh 178 179# Use recursively expanded variables so we do not call gcc unless 180# we really need to do so. (Do not call gcc as part of make mrproper) 181HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(check-lxdialog) -ccflags) \ 182 -DLOCALE 183 184# =========================================================================== 185# Shared Makefile for the various kconfig executables: 186# conf: Used for defconfig, oldconfig and related targets 187# nconf: Used for the nconfig target. 188# Utilizes ncurses 189# mconf: Used for the menuconfig target 190# Utilizes the lxdialog package 191# object files used by all kconfig flavours 192 193lxdialog := lxdialog/checklist.o lxdialog/util.o lxdialog/inputbox.o 194lxdialog += lxdialog/textbox.o lxdialog/yesno.o lxdialog/menubox.o 195 196conf-objs := conf.o zconf.tab.o 197mconf-objs := mconf.o zconf.tab.o $(lxdialog) 198nconf-objs := nconf.o zconf.tab.o nconf.gui.o 199kxgettext-objs := kxgettext.o zconf.tab.o 200 201hostprogs-y := conf nconf mconf kxgettext 202 203targets += zconf.lex.c 204clean-files += gconf.glade.h 205clean-files += config.pot linux.pot 206 207# Check that we have the required ncurses stuff installed for lxdialog (menuconfig) 208PHONY += $(obj)/dochecklxdialog 209$(addprefix $(obj)/, mconf.o $(lxdialog)): $(obj)/dochecklxdialog 210$(obj)/dochecklxdialog: 211 $(Q)$(CONFIG_SHELL) $(check-lxdialog) -check $(HOSTCC) $(HOST_EXTRACFLAGS) $(HOSTLOADLIBES_mconf) 212 213always := dochecklxdialog 214 215# Add environment specific flags 216HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(srctree)/$(src)/check.sh $(HOSTCC) $(HOSTCFLAGS)) 217HOST_EXTRACXXFLAGS += $(shell $(CONFIG_SHELL) $(srctree)/$(src)/check.sh $(HOSTCXX) $(HOSTCXXFLAGS)) 218 219# generated files seem to need this to find local include files 220HOSTCFLAGS_zconf.lex.o := -I$(src) 221HOSTCFLAGS_zconf.tab.o := -I$(src) 222 223HOSTLOADLIBES_mconf = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ldflags $(HOSTCC)) 224 225HOSTLOADLIBES_nconf = $(shell \ 226 pkg-config --libs menuw panelw ncursesw 2>/dev/null \ 227 || pkg-config --libs menu panel ncurses 2>/dev/null \ 228 || echo "-lmenu -lpanel -lncurses" ) 229 230# qconf: Used for the xconfig target based on Qt 231hostprogs-y += qconf 232qconf-cxxobjs := qconf.o 233qconf-objs := zconf.tab.o 234 235HOSTLOADLIBES_qconf = $(shell . $(obj)/.qconf-cfg && echo $$libs) 236HOSTCXXFLAGS_qconf.o = $(shell . $(obj)/.qconf-cfg && echo $$cflags) 237 238$(obj)/qconf.o: $(obj)/.qconf-cfg $(obj)/qconf.moc 239 240quiet_cmd_moc = MOC $@ 241 cmd_moc = $(shell . $(obj)/.qconf-cfg && echo $$moc) -i $< -o $@ 242 243$(obj)/%.moc: $(src)/%.h $(obj)/.qconf-cfg 244 $(call cmd,moc) 245 246# gconf: Used for the gconfig target based on GTK+ 247hostprogs-y += gconf 248gconf-objs := gconf.o zconf.tab.o 249 250HOSTLOADLIBES_gconf = $(shell . $(obj)/.gconf-cfg && echo $$libs) 251HOSTCFLAGS_gconf.o = $(shell . $(obj)/.gconf-cfg && echo $$cflags) 252 253$(obj)/gconf.o: $(obj)/.gconf-cfg 254 255$(obj)/zconf.tab.o: $(obj)/zconf.lex.c 256 257# Extract gconf menu items for i18n support 258$(obj)/gconf.glade.h: $(obj)/gconf.glade 259 $(Q)intltool-extract --type=gettext/glade --srcdir=$(srctree) \ 260 $(obj)/gconf.glade 261 262# check if necessary packages are available, and configure build flags 263define filechk_conf_cfg 264 $(CONFIG_SHELL) $< 265endef 266 267$(obj)/.%conf-cfg: $(src)/%conf-cfg.sh FORCE 268 $(call filechk,conf_cfg) 269 270clean-files += .*conf-cfg 271