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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237# SPDX-License-Identifier: GPL-2.0# ===========================================================================# Kernel configuration targets# These targets are used from top-level makefile
ifdef KBUILD_KCONFIGKconfig := $(KBUILD_KCONFIG)elseKconfig := Kconfigendif
ifndef KBUILD_DEFCONFIGKBUILD_DEFCONFIG := defconfigendif
ifeq ($(quiet),silent_)silent := -sendif
export KCONFIG_DEFCONFIG_LIST :=ifndef cross_compilingkernel-release := $(shell uname -r)KCONFIG_DEFCONFIG_LIST += \ /lib/modules/$(kernel-release)/.config \ /etc/kernel-config \ /boot/config-$(kernel-release)endifKCONFIG_DEFCONFIG_LIST += arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)
ifneq ($(findstring c, $(KBUILD_EXTRA_WARN)),)export KCONFIG_WARN_UNKNOWN_SYMBOLS=1endif
ifneq ($(findstring e, $(KBUILD_EXTRA_WARN)),)export KCONFIG_WERROR=1endif
# We need this, in case the user has it in its environmentunexport CONFIG_
config-prog := confmenuconfig-prog := mconfnconfig-prog := nconfgconfig-prog := gconfxconfig-prog := qconf
define config_rulePHONY += $(1)$(1): $(obj)/$($(1)-prog) $(Q)$$< $(silent) $(Kconfig)
PHONY += build_$(1)build_$(1): $(obj)/$($(1)-prog)endef
$(foreach c, config menuconfig nconfig gconfig xconfig, $(eval $(call config_rule,$(c))))
PHONY += localmodconfig localyesconfiglocalyesconfig localmodconfig: $(obj)/conf $(Q)$(PERL) $(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 usesimple-targets := oldconfig allnoconfig allyesconfig allmodconfig \ alldefconfig randconfig listnewconfig olddefconfig syncconfig \ helpnewconfig yes2modconfig mod2yesconfig mod2noconfig
PHONY += $(simple-targets)
$(simple-targets): $(obj)/conf $(Q)$< $(silent) --$@ $(Kconfig)
PHONY += savedefconfig defconfig
savedefconfig: $(obj)/conf $(Q)$< $(silent) --$@=defconfig $(Kconfig)
defconfig: $(obj)/confifneq ($(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
%_defconfig: $(obj)/conf $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig)
configfiles = $(wildcard $(srctree)/kernel/configs/$(1) $(srctree)/arch/$(SRCARCH)/configs/$(1))all-config-fragments = $(call configfiles,*.config)config-fragments = $(call configfiles,$@)
cmd_merge_fragments = $(srctree)/scripts/kconfig/merge_config.sh -m $(KCONFIG_CONFIG) $(config-fragments)
%.config: $(obj)/conf $(if $(config-fragments),, $(error $@ fragment does not exists on this architecture)) $(call cmd,merge_fragments) $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
PHONY += tinyconfigtinyconfig: $(Q)KCONFIG_ALLCONFIG=kernel/configs/tiny-base.config $(MAKE) -f $(srctree)/Makefile allnoconfig $(Q)$(MAKE) -f $(srctree)/Makefile tiny.config
# CHECK: -o cache_dir=<path> working?PHONY += testconfigtestconfig: $(obj)/conf $(Q)$(PYTHON3) -B -m pytest $(src)/tests \ -o cache_dir=$(abspath $(obj)/tests/.cache) \ $(if $(findstring 1,$(KBUILD_VERBOSE)),--capture=no)clean-files += tests/.cache
# Help text used by make helphelp: @echo 'Configuration targets:' @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 ' except those preserved by LMC_KEEP environment variable' @echo ' localyesconfig - Update current config converting local mods to core' @echo ' except those preserved by LMC_KEEP environment variable' @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 ' yes2modconfig - Change answers from yes to mod if possible' @echo ' mod2yesconfig - Change answers from mod to yes if possible' @echo ' mod2noconfig - Change answers from mod to no if possible' @echo ' listnewconfig - List new options' @echo ' helpnewconfig - List new options and help text' @echo ' olddefconfig - Same as oldconfig but sets new symbols to their' @echo ' default value without prompting' @echo ' tinyconfig - Configure the tiniest possible kernel' @echo ' testconfig - Run Kconfig unit tests (requires python3 and pytest)' @echo '' @echo 'Configuration topic targets:' @$(foreach f, $(all-config-fragments), \ if help=$$(grep -m1 '^# Help: ' $(f)); then \ printf ' %-25s - %s\n' '$(notdir $(f))' "$${help#*: }"; \ fi;)
# ===========================================================================# object files used by all kconfig flavourscommon-objs := confdata.o expr.o lexer.lex.o menu.o parser.tab.o \ preprocess.o symbol.o util.o
$(obj)/lexer.lex.o: $(obj)/parser.tab.hHOSTCFLAGS_lexer.lex.o := -I $(src)HOSTCFLAGS_parser.tab.o := -I $(src)
# conf: Used for defconfig, oldconfig and related targetshostprogs += confconf-objs := conf.o $(common-objs)
# nconf: Used for the nconfig target based on ncurseshostprogs += nconfnconf-objs := nconf.o nconf.gui.o mnconf-common.o $(common-objs)
HOSTLDLIBS_nconf = $(call read-file, $(obj)/nconf-libs)HOSTCFLAGS_nconf.o = $(call read-file, $(obj)/nconf-cflags)HOSTCFLAGS_nconf.gui.o = $(call read-file, $(obj)/nconf-cflags)
$(obj)/nconf: | $(obj)/nconf-libs$(obj)/nconf.o $(obj)/nconf.gui.o: | $(obj)/nconf-cflags
# mconf: Used for the menuconfig target based on lxdialoghostprogs += mconflxdialog := $(addprefix lxdialog/, \ checklist.o inputbox.o menubox.o textbox.o util.o yesno.o)mconf-objs := mconf.o $(lxdialog) mnconf-common.o $(common-objs)
HOSTLDLIBS_mconf = $(call read-file, $(obj)/mconf-libs)$(foreach f, mconf.o $(lxdialog), \ $(eval HOSTCFLAGS_$f = $$(call read-file, $(obj)/mconf-cflags)))
$(obj)/mconf: | $(obj)/mconf-libs$(addprefix $(obj)/, mconf.o $(lxdialog)): | $(obj)/mconf-cflags
# qconf: Used for the xconfig target based on Qthostprogs += qconfqconf-cxxobjs := qconf.o qconf-moc.oqconf-objs := $(common-objs)
HOSTLDLIBS_qconf = $(call read-file, $(obj)/qconf-libs)HOSTCXXFLAGS_qconf.o = -std=c++11 -fPIC $(call read-file, $(obj)/qconf-cflags)HOSTCXXFLAGS_qconf-moc.o = -std=c++11 -fPIC $(call read-file, $(obj)/qconf-cflags)$(obj)/qconf: | $(obj)/qconf-libs$(obj)/qconf.o $(obj)/qconf-moc.o: | $(obj)/qconf-cflags
quiet_cmd_moc = MOC $@ cmd_moc = $(call read-file, $(obj)/qconf-bin)/moc $< -o $@
$(obj)/qconf-moc.cc: $(src)/qconf.h FORCE | $(obj)/qconf-bin $(call if_changed,moc)
targets += qconf-moc.cc
# gconf: Used for the gconfig target based on GTK+hostprogs += gconfgconf-objs := gconf.o $(common-objs)
HOSTLDLIBS_gconf = $(call read-file, $(obj)/gconf-libs)HOSTCFLAGS_gconf.o = $(call read-file, $(obj)/gconf-cflags)
$(obj)/gconf: | $(obj)/gconf-libs$(obj)/gconf.o: | $(obj)/gconf-cflags
# check if necessary packages are available, and configure build flagscmd_conf_cfg = $< $(addprefix $(obj)/$*conf-, cflags libs bin); touch $(obj)/$*conf-bin
$(obj)/%conf-cflags $(obj)/%conf-libs $(obj)/%conf-bin: $(src)/%conf-cfg.sh $(call cmd,conf_cfg)
clean-files += *conf-cflags *conf-libs *conf-bin