# SPDX-License-Identifier: GPL-2.0 # =========================================================================== # Kernel configuration targets # These targets are used from top-level makefile PHONY += xconfig gconfig menuconfig config localmodconfig localyesconfig \ build_menuconfig build_nconfig build_gconfig build_xconfig # Added for U-Boot # Linux has defconfig files in arch/$(SRCARCH)/configs/, # on the other hand, U-Boot does in configs/. # Set SRCARCH to .. fake this Makefile. SRCARCH := .. ifdef KBUILD_KCONFIG Kconfig := $(KBUILD_KCONFIG) else Kconfig := Kconfig endif ifeq ($(quiet),silent_) silent := -s endif # We need this, in case the user has it in its environment unexport CONFIG_ xconfig: $(obj)/qconf $< $(silent) $(Kconfig) gconfig: $(obj)/gconf $< $(silent) $(Kconfig) menuconfig: $(obj)/mconf $< $(silent) $(Kconfig) config: $(obj)/conf $< $(silent) --oldaskconfig $(Kconfig) nconfig: $(obj)/nconf $< $(silent) $(Kconfig) build_menuconfig: $(obj)/mconf build_nconfig: $(obj)/nconf build_gconfig: $(obj)/gconf build_xconfig: $(obj)/qconf localyesconfig localmodconfig: $(obj)/conf $(Q)perl $(srctree)/$(src)/streamline_config.pl --$@ $(srctree) $(Kconfig) > .tmp.config $(Q)if [ -f .config ]; then \ cmp -s .tmp.config .config || \ (mv -f .config .config.old.1; \ mv -f .tmp.config .config; \ $< $(silent) --oldconfig $(Kconfig); \ mv -f .config.old.1 .config.old) \ else \ mv -f .tmp.config .config; \ $< $(silent) --oldconfig $(Kconfig); \ fi $(Q)rm -f .tmp.config # These targets map 1:1 to the commandline options of 'conf' # # Note: # syncconfig has become an internal implementation detail and is now # deprecated for external use simple-targets := oldconfig allnoconfig allyesconfig allmodconfig \ alldefconfig randconfig listnewconfig olddefconfig syncconfig PHONY += $(simple-targets) $(simple-targets): $(obj)/conf $< $(silent) --$@ $(Kconfig) PHONY += savedefconfig defconfig savedefconfig: $(obj)/conf $< $(silent) --$@=defconfig $(Kconfig) defconfig: $(obj)/conf ifeq ($(KBUILD_DEFCONFIG),) $< $(silent) --defconfig $(Kconfig) else ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)),) @$(kecho) "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'" $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig) else @$(kecho) "*** Default configuration is based on target '$(KBUILD_DEFCONFIG)'" $(Q)$(MAKE) -f $(srctree)/Makefile $(KBUILD_DEFCONFIG) endif endif %_defconfig: $(obj)/conf $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig) # Added for U-Boot (backward compatibility) %_config: %_defconfig @: configfiles=$(wildcard $(srctree)/kernel/configs/$@ \ $(srctree)/arch/$(SRCARCH)/configs/$@ \ $(shell find $(srctree)/board -name "$@")) %.config: $(obj)/conf $(if $(call configfiles),, $(error No configuration exists for this target on this architecture)) $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m .config $(configfiles) +$(Q)yes "" | $(MAKE) -f $(srctree)/Makefile oldconfig PHONY += kvmconfig kvmconfig: kvm_guest.config @: PHONY += xenconfig xenconfig: xen.config @: PHONY += tinyconfig tinyconfig: $(Q)$(MAKE) -f $(srctree)/Makefile allnoconfig tiny.config # CHECK: -o cache_dir= working? PHONY += testconfig testconfig: $(obj)/conf $(PYTHON3) -B -m pytest $(srctree)/$(src)/tests \ -o cache_dir=$(abspath $(obj)/tests/.cache) \ $(if $(findstring 1,$(KBUILD_VERBOSE)),--capture=no) clean-dirs += tests/.cache # Help text used by make help help: @echo ' config - Update current config utilising a line-oriented program' @echo ' nconfig - Update current config utilising a ncurses menu based program' @echo ' menuconfig - Update current config utilising a menu based program' @echo ' xconfig - Update current config utilising a Qt based front-end' @echo ' gconfig - Update current config utilising a GTK+ based front-end' @echo ' oldconfig - Update current config utilising a provided .config as base' @echo ' localmodconfig - Update current config disabling modules not loaded' @echo ' localyesconfig - Update current config converting local mods to core' @echo ' defconfig - New config with default from ARCH supplied defconfig' @echo ' savedefconfig - Save current config as ./defconfig (minimal config)' @echo ' allnoconfig - New config where all options are answered with no' @echo ' allyesconfig - New config where all options are accepted with yes' @echo ' allmodconfig - New config selecting modules when possible' @echo ' alldefconfig - New config with all symbols set to default' @echo ' randconfig - New config with random answer to all options' @echo ' listnewconfig - List new options' @echo ' olddefconfig - Same as oldconfig but sets new symbols to their' @echo ' default value without prompting' # @echo ' kvmconfig - Enable additional options for kvm guest kernel support' # @echo ' xenconfig - Enable additional options for xen dom0 and guest kernel support' # @echo ' tinyconfig - Configure the tiniest possible kernel' @echo ' testconfig - Run Kconfig unit tests (requires python3 and pytest)' # =========================================================================== # Shared Makefile for the various kconfig executables: # conf: Used for defconfig, oldconfig and related targets # object files used by all kconfig flavours conf-objs := conf.o zconf.tab.o hostprogs-y := conf targets += zconf.lex.c # generated files seem to need this to find local include files HOSTCFLAGS_zconf.lex.o := -I$(src) HOSTCFLAGS_zconf.tab.o := -I$(src) # nconf: Used for the nconfig target based on ncurses hostprogs-y += nconf nconf-objs := nconf.o zconf.tab.o nconf.gui.o HOSTLDLIBS_nconf = $(shell . $(obj)/.nconf-cfg && echo $$libs) HOSTCFLAGS_nconf.o = $(shell . $(obj)/.nconf-cfg && echo $$cflags) HOSTCFLAGS_nconf.gui.o = $(shell . $(obj)/.nconf-cfg && echo $$cflags) $(obj)/nconf.o $(obj)/nconf.gui.o: $(obj)/.nconf-cfg # mconf: Used for the menuconfig target based on lxdialog hostprogs-y += mconf lxdialog := checklist.o inputbox.o menubox.o textbox.o util.o yesno.o mconf-objs := mconf.o zconf.tab.o $(addprefix lxdialog/, $(lxdialog)) HOSTLDLIBS_mconf = $(shell . $(obj)/.mconf-cfg && echo $$libs) $(foreach f, mconf.o $(lxdialog), \ $(eval HOSTCFLAGS_$f = $$(shell . $(obj)/.mconf-cfg && echo $$$$cflags))) $(obj)/mconf.o: $(obj)/.mconf-cfg $(addprefix $(obj)/lxdialog/, $(lxdialog)): $(obj)/.mconf-cfg # qconf: Used for the xconfig target based on Qt hostprogs-y += qconf qconf-cxxobjs := qconf.o qconf-objs := zconf.tab.o HOSTLDLIBS_qconf = $(shell . $(obj)/.qconf-cfg && echo $$libs) HOSTCXXFLAGS_qconf.o = $(shell . $(obj)/.qconf-cfg && echo $$cflags) $(obj)/qconf.o: $(obj)/.qconf-cfg $(obj)/qconf.moc quiet_cmd_moc = MOC $@ cmd_moc = $(shell . $(obj)/.qconf-cfg && echo $$moc) -i $< -o $@ $(obj)/%.moc: $(src)/%.h $(obj)/.qconf-cfg $(call cmd,moc) # gconf: Used for the gconfig target based on GTK+ hostprogs-y += gconf gconf-objs := gconf.o zconf.tab.o HOSTLDLIBS_gconf = $(shell . $(obj)/.gconf-cfg && echo $$libs) HOSTCFLAGS_gconf.o = $(shell . $(obj)/.gconf-cfg && echo $$cflags) $(obj)/gconf.o: $(obj)/.gconf-cfg $(obj)/zconf.tab.o: $(obj)/zconf.lex.c # check if necessary packages are available, and configure build flags define filechk_conf_cfg $(CONFIG_SHELL) $< endef $(obj)/.%conf-cfg: $(src)/%conf-cfg.sh FORCE $(call filechk,conf_cfg) clean-files += .*conf-cfg