1# =========================================================================== 2# Kernel configuration targets 3# These targets are used from top-level makefile 4# 5# SPDX-License-Identifier: GPL-2.0 6# 7 8PHONY += xconfig gconfig menuconfig config silentoldconfig update-po-config \ 9 localmodconfig localyesconfig 10 11# Added for U-Boot 12# Linux has defconfig files in arch/$(SRCARCH)/configs/, 13# on the other hand, U-Boot does in configs/. 14# Set SRCARCH to .. fake this Makefile. 15SRCARCH := .. 16 17ifdef KBUILD_KCONFIG 18Kconfig := $(KBUILD_KCONFIG) 19else 20Kconfig := Kconfig 21endif 22 23ifeq ($(quiet),silent_) 24silent := -s 25endif 26 27# We need this, in case the user has it in its environment 28unexport CONFIG_ 29 30xconfig: $(obj)/qconf 31 $< $(silent) $(Kconfig) 32 33gconfig: $(obj)/gconf 34 $< $(silent) $(Kconfig) 35 36menuconfig: $(obj)/mconf 37 $< $(silent) $(Kconfig) 38 39config: $(obj)/conf 40 $< $(silent) --oldaskconfig $(Kconfig) 41 42nconfig: $(obj)/nconf 43 $< $(silent) $(Kconfig) 44 45silentoldconfig: $(obj)/conf 46 $(Q)mkdir -p include/config include/generated 47 $(Q)test -e include/generated/autoksyms.h || \ 48 touch include/generated/autoksyms.h 49 $< $(silent) --$@ $(Kconfig) 50 51localyesconfig localmodconfig: $(obj)/streamline_config.pl $(obj)/conf 52 $(Q)mkdir -p include/config include/generated 53 $(Q)perl $< --$@ $(srctree) $(Kconfig) > .tmp.config 54 $(Q)if [ -f .config ]; then \ 55 cmp -s .tmp.config .config || \ 56 (mv -f .config .config.old.1; \ 57 mv -f .tmp.config .config; \ 58 $(obj)/conf $(silent) --silentoldconfig $(Kconfig); \ 59 mv -f .config.old.1 .config.old) \ 60 else \ 61 mv -f .tmp.config .config; \ 62 $(obj)/conf $(silent) --silentoldconfig $(Kconfig); \ 63 fi 64 $(Q)rm -f .tmp.config 65 66# Create new linux.pot file 67# Adjust charset to UTF-8 in .po file to accept UTF-8 in Kconfig files 68update-po-config: $(obj)/kxgettext $(obj)/gconf.glade.h 69 $(Q)$(kecho) " GEN config.pot" 70 $(Q)xgettext --default-domain=linux \ 71 --add-comments --keyword=_ --keyword=N_ \ 72 --from-code=UTF-8 \ 73 --files-from=$(srctree)/scripts/kconfig/POTFILES.in \ 74 --directory=$(srctree) --directory=$(objtree) \ 75 --output $(obj)/config.pot 76 $(Q)sed -i s/CHARSET/UTF-8/ $(obj)/config.pot 77 $(Q)(for i in `ls $(srctree)/arch/*/Kconfig \ 78 $(srctree)/arch/*/um/Kconfig`; \ 79 do \ 80 $(kecho) " GEN $$i"; \ 81 $(obj)/kxgettext $$i \ 82 >> $(obj)/config.pot; \ 83 done ) 84 $(Q)$(kecho) " GEN linux.pot" 85 $(Q)msguniq --sort-by-file --to-code=UTF-8 $(obj)/config.pot \ 86 --output $(obj)/linux.pot 87 $(Q)rm -f $(obj)/config.pot 88 89# These targets map 1:1 to the commandline options of 'conf' 90simple-targets := oldconfig allnoconfig allyesconfig allmodconfig \ 91 alldefconfig randconfig listnewconfig olddefconfig 92PHONY += $(simple-targets) 93 94$(simple-targets): $(obj)/conf 95 $< $(silent) --$@ $(Kconfig) 96 97PHONY += oldnoconfig savedefconfig defconfig 98 99# oldnoconfig is an alias of olddefconfig, because people already are dependent 100# on its behavior (sets new symbols to their default value but not 'n') with the 101# counter-intuitive name. 102oldnoconfig: olddefconfig 103 104savedefconfig: $(obj)/conf 105 $< $(silent) --$@=defconfig $(Kconfig) 106 107defconfig: $(obj)/conf 108ifeq ($(KBUILD_DEFCONFIG),) 109 $< $(silent) --defconfig $(Kconfig) 110else 111ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)),) 112 @$(kecho) "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'" 113 $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig) 114else 115 @$(kecho) "*** Default configuration is based on target '$(KBUILD_DEFCONFIG)'" 116 $(Q)$(MAKE) -f $(srctree)/Makefile $(KBUILD_DEFCONFIG) 117endif 118endif 119 120%_defconfig: $(obj)/conf 121 $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig) 122 123# Added for U-Boot (backward compatibility) 124%_config: %_defconfig 125 @: 126 127configfiles=$(wildcard $(srctree)/kernel/configs/$@ $(srctree)/arch/$(SRCARCH)/configs/$@) 128 129%.config: $(obj)/conf 130 $(if $(call configfiles),, $(error No configuration exists for this target on this architecture)) 131 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m .config $(configfiles) 132 +$(Q)yes "" | $(MAKE) -f $(srctree)/Makefile oldconfig 133 134PHONY += kvmconfig 135kvmconfig: kvm_guest.config 136 @: 137 138PHONY += xenconfig 139xenconfig: xen.config 140 @: 141 142PHONY += tinyconfig 143tinyconfig: 144 $(Q)$(MAKE) -f $(srctree)/Makefile allnoconfig tiny.config 145 146# Help text used by make help 147help: 148 @echo ' config - Update current config utilising a line-oriented program' 149 @echo ' nconfig - Update current config utilising a ncurses menu based' 150 @echo ' program' 151 @echo ' menuconfig - Update current config utilising a menu based program' 152 @echo ' xconfig - Update current config utilising a Qt based front-end' 153 @echo ' gconfig - Update current config utilising a GTK+ based front-end' 154 @echo ' oldconfig - Update current config utilising a provided .config as base' 155 @echo ' localmodconfig - Update current config disabling modules not loaded' 156 @echo ' localyesconfig - Update current config converting local mods to core' 157 @echo ' silentoldconfig - Same as oldconfig, but quietly, additionally update deps' 158 @echo ' defconfig - New config with default from ARCH supplied defconfig' 159 @echo ' savedefconfig - Save current config as ./defconfig (minimal config)' 160 @echo ' allnoconfig - New config where all options are answered with no' 161 @echo ' allyesconfig - New config where all options are accepted with yes' 162 @echo ' allmodconfig - New config selecting modules when possible' 163 @echo ' alldefconfig - New config with all symbols set to default' 164 @echo ' randconfig - New config with random answer to all options' 165 @echo ' listnewconfig - List new options' 166 @echo ' olddefconfig - Same as silentoldconfig but sets new symbols to their' 167 @echo ' default value' 168# @echo ' kvmconfig - Enable additional options for kvm guest kernel support' 169# @echo ' xenconfig - Enable additional options for xen dom0 and guest kernel support' 170# @echo ' tinyconfig - Configure the tiniest possible kernel' 171 172# lxdialog stuff 173check-lxdialog := $(srctree)/$(src)/lxdialog/check-lxdialog.sh 174 175# Use recursively expanded variables so we do not call gcc unless 176# we really need to do so. (Do not call gcc as part of make mrproper) 177HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(check-lxdialog) -ccflags) \ 178 -DLOCALE 179 180# =========================================================================== 181# Shared Makefile for the various kconfig executables: 182# conf: Used for defconfig, oldconfig and related targets 183# nconf: Used for the nconfig target. 184# Utilizes ncurses 185# mconf: Used for the menuconfig target 186# Utilizes the lxdialog package 187# qconf: Used for the xconfig target 188# Based on Qt which needs to be installed to compile it 189# gconf: Used for the gconfig target 190# Based on GTK+ which needs to be installed to compile it 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 200qconf-cxxobjs := qconf.o 201qconf-objs := zconf.tab.o 202gconf-objs := gconf.o zconf.tab.o 203 204hostprogs-y := conf nconf mconf kxgettext qconf gconf 205 206clean-files := qconf.moc .tmp_qtcheck .tmp_gtkcheck 207clean-files += zconf.tab.c zconf.lex.c zconf.hash.c gconf.glade.h 208clean-files += config.pot linux.pot 209 210# Check that we have the required ncurses stuff installed for lxdialog (menuconfig) 211PHONY += $(obj)/dochecklxdialog 212$(addprefix $(obj)/,$(lxdialog)): $(obj)/dochecklxdialog 213$(obj)/dochecklxdialog: 214 $(Q)$(CONFIG_SHELL) $(check-lxdialog) -check $(HOSTCC) $(HOST_EXTRACFLAGS) $(HOSTLOADLIBES_mconf) 215 216always := dochecklxdialog 217 218# Add environment specific flags 219HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(srctree)/$(src)/check.sh $(HOSTCC) $(HOSTCFLAGS)) 220 221# generated files seem to need this to find local include files 222HOSTCFLAGS_zconf.lex.o := -I$(src) 223HOSTCFLAGS_zconf.tab.o := -I$(src) 224 225LEX_PREFIX_zconf := zconf 226YACC_PREFIX_zconf := zconf 227 228HOSTLOADLIBES_qconf = $(KC_QT_LIBS) 229HOSTCXXFLAGS_qconf.o = $(KC_QT_CFLAGS) 230 231HOSTLOADLIBES_gconf = `pkg-config --libs gtk+-2.0 gmodule-2.0 libglade-2.0` 232HOSTCFLAGS_gconf.o = `pkg-config --cflags gtk+-2.0 gmodule-2.0 libglade-2.0` \ 233 -Wno-missing-prototypes 234 235HOSTLOADLIBES_mconf = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ldflags $(HOSTCC)) 236 237HOSTLOADLIBES_nconf = $(shell \ 238 pkg-config --libs menuw panelw ncursesw 2>/dev/null \ 239 || pkg-config --libs menu panel ncurses 2>/dev/null \ 240 || echo "-lmenu -lpanel -lncurses" ) 241$(obj)/qconf.o: $(obj)/.tmp_qtcheck 242 243ifeq ($(MAKECMDGOALS),xconfig) 244$(obj)/.tmp_qtcheck: $(src)/Makefile 245-include $(obj)/.tmp_qtcheck 246 247# Qt needs some extra effort... 248$(obj)/.tmp_qtcheck: 249 @set -e; $(kecho) " CHECK qt"; \ 250 if pkg-config --exists Qt5Core; then \ 251 cflags="-std=c++11 -fPIC `pkg-config --cflags Qt5Core Qt5Gui Qt5Widgets`"; \ 252 libs=`pkg-config --libs Qt5Core Qt5Gui Qt5Widgets`; \ 253 moc=`pkg-config --variable=host_bins Qt5Core`/moc; \ 254 elif pkg-config --exists QtCore; then \ 255 cflags=`pkg-config --cflags QtCore QtGui`; \ 256 libs=`pkg-config --libs QtCore QtGui`; \ 257 moc=`pkg-config --variable=moc_location QtCore`; \ 258 else \ 259 echo >&2 "*"; \ 260 echo >&2 "* Could not find Qt via pkg-config."; \ 261 echo >&2 "* Please install either Qt 4.8 or 5.x. and make sure it's in PKG_CONFIG_PATH"; \ 262 echo >&2 "*"; \ 263 exit 1; \ 264 fi; \ 265 echo "KC_QT_CFLAGS=$$cflags" > $@; \ 266 echo "KC_QT_LIBS=$$libs" >> $@; \ 267 echo "KC_QT_MOC=$$moc" >> $@ 268endif 269 270$(obj)/gconf.o: $(obj)/.tmp_gtkcheck 271 272ifeq ($(MAKECMDGOALS),gconfig) 273-include $(obj)/.tmp_gtkcheck 274 275# GTK+ needs some extra effort, too... 276$(obj)/.tmp_gtkcheck: 277 @if `pkg-config --exists gtk+-2.0 gmodule-2.0 libglade-2.0`; then \ 278 if `pkg-config --atleast-version=2.0.0 gtk+-2.0`; then \ 279 touch $@; \ 280 else \ 281 echo >&2 "*"; \ 282 echo >&2 "* GTK+ is present but version >= 2.0.0 is required."; \ 283 echo >&2 "*"; \ 284 false; \ 285 fi \ 286 else \ 287 echo >&2 "*"; \ 288 echo >&2 "* Unable to find the GTK+ installation. Please make sure that"; \ 289 echo >&2 "* the GTK+ 2.0 development package is correctly installed..."; \ 290 echo >&2 "* You need gtk+-2.0, glib-2.0 and libglade-2.0."; \ 291 echo >&2 "*"; \ 292 false; \ 293 fi 294endif 295 296$(obj)/zconf.tab.o: $(obj)/zconf.lex.c $(obj)/zconf.hash.c 297 298$(obj)/qconf.o: $(obj)/qconf.moc 299 300quiet_cmd_moc = MOC $@ 301 cmd_moc = $(KC_QT_MOC) -i $< -o $@ 302 303$(obj)/%.moc: $(src)/%.h $(obj)/.tmp_qtcheck 304 $(call cmd,moc) 305 306# Extract gconf menu items for i18n support 307$(obj)/gconf.glade.h: $(obj)/gconf.glade 308 $(Q)intltool-extract --type=gettext/glade --srcdir=$(srctree) \ 309 $(obj)/gconf.glade 310