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 localmodconfig localyesconfig \ 7 build_menuconfig build_nconfig build_gconfig build_xconfig 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 $(Q)$< $(silent) $(Kconfig) 24 25gconfig: $(obj)/gconf 26 $(Q)$< $(silent) $(Kconfig) 27 28menuconfig: $(obj)/mconf 29 $(Q)$< $(silent) $(Kconfig) 30 31config: $(obj)/conf 32 $(Q)$< $(silent) --oldaskconfig $(Kconfig) 33 34nconfig: $(obj)/nconf 35 $(Q)$< $(silent) $(Kconfig) 36 37build_menuconfig: $(obj)/mconf 38 39build_nconfig: $(obj)/nconf 40 41build_gconfig: $(obj)/gconf 42 43build_xconfig: $(obj)/qconf 44 45localyesconfig localmodconfig: $(obj)/conf 46 $(Q)$(PERL) $(srctree)/$(src)/streamline_config.pl --$@ $(srctree) $(Kconfig) > .tmp.config 47 $(Q)if [ -f .config ]; then \ 48 cmp -s .tmp.config .config || \ 49 (mv -f .config .config.old.1; \ 50 mv -f .tmp.config .config; \ 51 $< $(silent) --oldconfig $(Kconfig); \ 52 mv -f .config.old.1 .config.old) \ 53 else \ 54 mv -f .tmp.config .config; \ 55 $< $(silent) --oldconfig $(Kconfig); \ 56 fi 57 $(Q)rm -f .tmp.config 58 59# These targets map 1:1 to the commandline options of 'conf' 60# 61# Note: 62# syncconfig has become an internal implementation detail and is now 63# deprecated for external use 64simple-targets := oldconfig allnoconfig allyesconfig allmodconfig \ 65 alldefconfig randconfig listnewconfig olddefconfig syncconfig \ 66 helpnewconfig yes2modconfig mod2yesconfig 67 68PHONY += $(simple-targets) 69 70$(simple-targets): $(obj)/conf 71 $(Q)$< $(silent) --$@ $(Kconfig) 72 73PHONY += savedefconfig defconfig 74 75savedefconfig: $(obj)/conf 76 $(Q)$< $(silent) --$@=defconfig $(Kconfig) 77 78defconfig: $(obj)/conf 79ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)),) 80 @$(kecho) "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'" 81 $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig) 82else 83 @$(kecho) "*** Default configuration is based on target '$(KBUILD_DEFCONFIG)'" 84 $(Q)$(MAKE) -f $(srctree)/Makefile $(KBUILD_DEFCONFIG) 85endif 86 87%_defconfig: $(obj)/conf 88 $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig) 89 90configfiles=$(wildcard $(srctree)/kernel/configs/$@ $(srctree)/arch/$(SRCARCH)/configs/$@) 91 92%.config: $(obj)/conf 93 $(if $(call configfiles),, $(error No configuration exists for this target on this architecture)) 94 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m .config $(configfiles) 95 $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig 96 97PHONY += kvmconfig 98kvmconfig: kvm_guest.config 99 @echo >&2 "WARNING: 'make $@' will be removed after Linux 5.10" 100 @echo >&2 " Please use 'make $<' instead." 101 102PHONY += xenconfig 103xenconfig: xen.config 104 @echo >&2 "WARNING: 'make $@' will be removed after Linux 5.10" 105 @echo >&2 " Please use 'make $<' instead." 106 107PHONY += tinyconfig 108tinyconfig: 109 $(Q)$(MAKE) -f $(srctree)/Makefile allnoconfig tiny.config 110 111# CHECK: -o cache_dir=<path> working? 112PHONY += testconfig 113testconfig: $(obj)/conf 114 $(Q)$(PYTHON3) -B -m pytest $(srctree)/$(src)/tests \ 115 -o cache_dir=$(abspath $(obj)/tests/.cache) \ 116 $(if $(findstring 1,$(KBUILD_VERBOSE)),--capture=no) 117clean-files += tests/.cache 118 119# Help text used by make help 120help: 121 @echo ' config - Update current config utilising a line-oriented program' 122 @echo ' nconfig - Update current config utilising a ncurses menu based program' 123 @echo ' menuconfig - Update current config utilising a menu based program' 124 @echo ' xconfig - Update current config utilising a Qt based front-end' 125 @echo ' gconfig - Update current config utilising a GTK+ based front-end' 126 @echo ' oldconfig - Update current config utilising a provided .config as base' 127 @echo ' localmodconfig - Update current config disabling modules not loaded' 128 @echo ' except those preserved by LMC_KEEP environment variable' 129 @echo ' localyesconfig - Update current config converting local mods to core' 130 @echo ' except those preserved by LMC_KEEP environment variable' 131 @echo ' defconfig - New config with default from ARCH supplied defconfig' 132 @echo ' savedefconfig - Save current config as ./defconfig (minimal config)' 133 @echo ' allnoconfig - New config where all options are answered with no' 134 @echo ' allyesconfig - New config where all options are accepted with yes' 135 @echo ' allmodconfig - New config selecting modules when possible' 136 @echo ' alldefconfig - New config with all symbols set to default' 137 @echo ' randconfig - New config with random answer to all options' 138 @echo ' yes2modconfig - Change answers from yes to mod if possible' 139 @echo ' mod2yesconfig - Change answers from mod to yes if possible' 140 @echo ' listnewconfig - List new options' 141 @echo ' helpnewconfig - List new options and help text' 142 @echo ' olddefconfig - Same as oldconfig but sets new symbols to their' 143 @echo ' default value without prompting' 144 @echo ' tinyconfig - Configure the tiniest possible kernel' 145 @echo ' testconfig - Run Kconfig unit tests (requires python3 and pytest)' 146 147# =========================================================================== 148# object files used by all kconfig flavours 149common-objs := confdata.o expr.o lexer.lex.o parser.tab.o preprocess.o \ 150 symbol.o util.o 151 152$(obj)/lexer.lex.o: $(obj)/parser.tab.h 153HOSTCFLAGS_lexer.lex.o := -I $(srctree)/$(src) 154HOSTCFLAGS_parser.tab.o := -I $(srctree)/$(src) 155 156# conf: Used for defconfig, oldconfig and related targets 157hostprogs += conf 158conf-objs := conf.o $(common-objs) 159 160# nconf: Used for the nconfig target based on ncurses 161hostprogs += nconf 162nconf-objs := nconf.o nconf.gui.o $(common-objs) 163 164HOSTLDLIBS_nconf = $(shell . $(obj)/nconf-cfg && echo $$libs) 165HOSTCFLAGS_nconf.o = $(shell . $(obj)/nconf-cfg && echo $$cflags) 166HOSTCFLAGS_nconf.gui.o = $(shell . $(obj)/nconf-cfg && echo $$cflags) 167 168$(obj)/nconf.o $(obj)/nconf.gui.o: $(obj)/nconf-cfg 169 170# mconf: Used for the menuconfig target based on lxdialog 171hostprogs += mconf 172lxdialog := $(addprefix lxdialog/, \ 173 checklist.o inputbox.o menubox.o textbox.o util.o yesno.o) 174mconf-objs := mconf.o $(lxdialog) $(common-objs) 175 176HOSTLDLIBS_mconf = $(shell . $(obj)/mconf-cfg && echo $$libs) 177$(foreach f, mconf.o $(lxdialog), \ 178 $(eval HOSTCFLAGS_$f = $$(shell . $(obj)/mconf-cfg && echo $$$$cflags))) 179 180$(addprefix $(obj)/, mconf.o $(lxdialog)): $(obj)/mconf-cfg 181 182# qconf: Used for the xconfig target based on Qt 183hostprogs += qconf 184qconf-cxxobjs := qconf.o qconf-moc.o 185qconf-objs := images.o $(common-objs) 186 187HOSTLDLIBS_qconf = $(shell . $(obj)/qconf-cfg && echo $$libs) 188HOSTCXXFLAGS_qconf.o = $(shell . $(obj)/qconf-cfg && echo $$cflags) 189HOSTCXXFLAGS_qconf-moc.o = $(shell . $(obj)/qconf-cfg && echo $$cflags) 190 191$(obj)/qconf.o: $(obj)/qconf-cfg 192 193quiet_cmd_moc = MOC $@ 194 cmd_moc = $(shell . $(obj)/qconf-cfg && echo $$moc) $< -o $@ 195 196$(obj)/qconf-moc.cc: $(src)/qconf.h $(obj)/qconf-cfg FORCE 197 $(call if_changed,moc) 198 199targets += qconf-moc.cc 200 201# gconf: Used for the gconfig target based on GTK+ 202hostprogs += gconf 203gconf-objs := gconf.o images.o $(common-objs) 204 205HOSTLDLIBS_gconf = $(shell . $(obj)/gconf-cfg && echo $$libs) 206HOSTCFLAGS_gconf.o = $(shell . $(obj)/gconf-cfg && echo $$cflags) 207 208$(obj)/gconf.o: $(obj)/gconf-cfg 209 210# check if necessary packages are available, and configure build flags 211filechk_conf_cfg = $(CONFIG_SHELL) $< 212 213$(obj)/%conf-cfg: $(src)/%conf-cfg.sh FORCE 214 $(call filechk,conf_cfg) 215 216clean-files += *conf-cfg 217
