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 silentoldconfig update-po-config \ 7 localmodconfig localyesconfig 8 9# Added for U-Boot 10# Linux has defconfig files in arch/$(SRCARCH)/configs/, 11# on the other hand, U-Boot does in configs/. 12# Set SRCARCH to .. fake this Makefile. 13SRCARCH := .. 14 15ifdef KBUILD_KCONFIG 16Kconfig := $(KBUILD_KCONFIG) 17else 18Kconfig := Kconfig 19endif 20 21ifeq ($(quiet),silent_) 22silent := -s 23endif 24 25# We need this, in case the user has it in its environment 26unexport CONFIG_ 27 28xconfig: $(obj)/qconf 29 $< $(silent) $(Kconfig) 30 31gconfig: $(obj)/gconf 32 $< $(silent) $(Kconfig) 33 34menuconfig: $(obj)/mconf 35 $< $(silent) $(Kconfig) 36 37config: $(obj)/conf 38 $< $(silent) --oldaskconfig $(Kconfig) 39 40nconfig: $(obj)/nconf 41 $< $(silent) $(Kconfig) 42 43silentoldconfig: $(obj)/conf 44 $(Q)mkdir -p include/config include/generated 45 $(Q)test -e include/generated/autoksyms.h || \ 46 touch include/generated/autoksyms.h 47 $< $(silent) --$@ $(Kconfig) 48 49localyesconfig localmodconfig: $(obj)/streamline_config.pl $(obj)/conf 50 $(Q)mkdir -p include/config include/generated 51 $(Q)perl $< --$@ $(srctree) $(Kconfig) > .tmp.config 52 $(Q)if [ -f .config ]; then \ 53 cmp -s .tmp.config .config || \ 54 (mv -f .config .config.old.1; \ 55 mv -f .tmp.config .config; \ 56 $(obj)/conf $(silent) --silentoldconfig $(Kconfig); \ 57 mv -f .config.old.1 .config.old) \ 58 else \ 59 mv -f .tmp.config .config; \ 60 $(obj)/conf $(silent) --silentoldconfig $(Kconfig); \ 61 fi 62 $(Q)rm -f .tmp.config 63 64# Create new linux.pot file 65# Adjust charset to UTF-8 in .po file to accept UTF-8 in Kconfig files 66update-po-config: $(obj)/kxgettext $(obj)/gconf.glade.h 67 $(Q)$(kecho) " GEN config.pot" 68 $(Q)xgettext --default-domain=linux \ 69 --add-comments --keyword=_ --keyword=N_ \ 70 --from-code=UTF-8 \ 71 --files-from=$(srctree)/scripts/kconfig/POTFILES.in \ 72 --directory=$(srctree) --directory=$(objtree) \ 73 --output $(obj)/config.pot 74 $(Q)sed -i s/CHARSET/UTF-8/ $(obj)/config.pot 75 $(Q)(for i in `ls $(srctree)/arch/*/Kconfig \ 76 $(srctree)/arch/*/um/Kconfig`; \ 77 do \ 78 $(kecho) " GEN $$i"; \ 79 $(obj)/kxgettext $$i \ 80 >> $(obj)/config.pot; \ 81 done ) 82 $(Q)$(kecho) " GEN linux.pot" 83 $(Q)msguniq --sort-by-file --to-code=UTF-8 $(obj)/config.pot \ 84 --output $(obj)/linux.pot 85 $(Q)rm -f $(obj)/config.pot 86 87# These targets map 1:1 to the commandline options of 'conf' 88simple-targets := oldconfig allnoconfig allyesconfig allmodconfig \ 89 alldefconfig randconfig listnewconfig olddefconfig 90PHONY += $(simple-targets) 91 92$(simple-targets): $(obj)/conf 93 $< $(silent) --$@ $(Kconfig) 94 95PHONY += oldnoconfig savedefconfig defconfig 96 97# oldnoconfig is an alias of olddefconfig, because people already are dependent 98# on its behavior (sets new symbols to their default value but not 'n') with the 99# counter-intuitive name. 100oldnoconfig: olddefconfig 101 102savedefconfig: $(obj)/conf 103 $< $(silent) --$@=defconfig $(Kconfig) 104 105defconfig: $(obj)/conf 106ifeq ($(KBUILD_DEFCONFIG),) 107 $< $(silent) --defconfig $(Kconfig) 108else 109ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)),) 110 @$(kecho) "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'" 111 $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig) 112else 113 @$(kecho) "*** Default configuration is based on target '$(KBUILD_DEFCONFIG)'" 114 $(Q)$(MAKE) -f $(srctree)/Makefile $(KBUILD_DEFCONFIG) 115endif 116endif 117 118%_defconfig: $(obj)/conf 119 $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig) 120 121# Added for U-Boot (backward compatibility) 122%_config: %_defconfig 123 @: 124 125configfiles=$(wildcard $(srctree)/kernel/configs/$@ $(srctree)/arch/$(SRCARCH)/configs/$@) 126 127%.config: $(obj)/conf 128 $(if $(call configfiles),, $(error No configuration exists for this target on this architecture)) 129 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m .config $(configfiles) 130 +$(Q)yes "" | $(MAKE) -f $(srctree)/Makefile oldconfig 131 132PHONY += kvmconfig 133kvmconfig: kvm_guest.config 134 @: 135 136PHONY += xenconfig 137xenconfig: xen.config 138 @: 139 140PHONY += tinyconfig 141tinyconfig: 142 $(Q)$(MAKE) -f $(srctree)/Makefile allnoconfig tiny.config 143 144# Help text used by make help 145help: 146 @echo ' config - Update current config utilising a line-oriented program' 147 @echo ' nconfig - Update current config utilising a ncurses menu based' 148 @echo ' program' 149 @echo ' menuconfig - Update current config utilising a menu based program' 150 @echo ' xconfig - Update current config utilising a Qt based front-end' 151 @echo ' gconfig - Update current config utilising a GTK+ based front-end' 152 @echo ' oldconfig - Update current config utilising a provided .config as base' 153 @echo ' localmodconfig - Update current config disabling modules not loaded' 154 @echo ' localyesconfig - Update current config converting local mods to core' 155 @echo ' silentoldconfig - Same as oldconfig, but quietly, additionally update deps' 156 @echo ' defconfig - New config with default from ARCH supplied defconfig' 157 @echo ' savedefconfig - Save current config as ./defconfig (minimal config)' 158 @echo ' allnoconfig - New config where all options are answered with no' 159 @echo ' allyesconfig - New config where all options are accepted with yes' 160 @echo ' allmodconfig - New config selecting modules when possible' 161 @echo ' alldefconfig - New config with all symbols set to default' 162 @echo ' randconfig - New config with random answer to all options' 163 @echo ' listnewconfig - List new options' 164 @echo ' olddefconfig - Same as silentoldconfig but sets new symbols to their' 165 @echo ' default value' 166# @echo ' kvmconfig - Enable additional options for kvm guest kernel support' 167# @echo ' xenconfig - Enable additional options for xen dom0 and guest kernel support' 168# @echo ' tinyconfig - Configure the tiniest possible kernel' 169 170# lxdialog stuff 171check-lxdialog := $(srctree)/$(src)/lxdialog/check-lxdialog.sh 172 173# Use recursively expanded variables so we do not call gcc unless 174# we really need to do so. (Do not call gcc as part of make mrproper) 175HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(check-lxdialog) -ccflags) \ 176 -DLOCALE 177 178# =========================================================================== 179# Shared Makefile for the various kconfig executables: 180# conf: Used for defconfig, oldconfig and related targets 181# nconf: Used for the nconfig target. 182# Utilizes ncurses 183# mconf: Used for the menuconfig target 184# Utilizes the lxdialog package 185# qconf: Used for the xconfig target 186# Based on Qt which needs to be installed to compile it 187# gconf: Used for the gconfig target 188# Based on GTK+ which needs to be installed to compile it 189# object files used by all kconfig flavours 190 191lxdialog := lxdialog/checklist.o lxdialog/util.o lxdialog/inputbox.o 192lxdialog += lxdialog/textbox.o lxdialog/yesno.o lxdialog/menubox.o 193 194conf-objs := conf.o zconf.tab.o 195mconf-objs := mconf.o zconf.tab.o $(lxdialog) 196nconf-objs := nconf.o zconf.tab.o nconf.gui.o 197kxgettext-objs := kxgettext.o zconf.tab.o 198qconf-cxxobjs := qconf.o 199qconf-objs := zconf.tab.o 200gconf-objs := gconf.o zconf.tab.o 201 202hostprogs-y := conf nconf mconf kxgettext qconf gconf 203 204clean-files := qconf.moc .tmp_qtcheck .tmp_gtkcheck 205clean-files += zconf.tab.c zconf.lex.c zconf.hash.c gconf.glade.h 206clean-files += config.pot linux.pot 207 208# Check that we have the required ncurses stuff installed for lxdialog (menuconfig) 209PHONY += $(obj)/dochecklxdialog 210$(addprefix $(obj)/,$(lxdialog)): $(obj)/dochecklxdialog 211$(obj)/dochecklxdialog: 212 $(Q)$(CONFIG_SHELL) $(check-lxdialog) -check $(HOSTCC) $(HOST_EXTRACFLAGS) $(HOSTLOADLIBES_mconf) 213 214always := dochecklxdialog 215 216# Add environment specific flags 217HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(srctree)/$(src)/check.sh $(HOSTCC) $(HOSTCFLAGS)) 218 219# generated files seem to need this to find local include files 220HOSTCFLAGS_zconf.lex.o := -I$(src) 221HOSTCFLAGS_zconf.tab.o := -I$(src) 222 223LEX_PREFIX_zconf := zconf 224YACC_PREFIX_zconf := zconf 225 226HOSTLOADLIBES_qconf = $(KC_QT_LIBS) 227HOSTCXXFLAGS_qconf.o = $(KC_QT_CFLAGS) 228 229HOSTLOADLIBES_gconf = `pkg-config --libs gtk+-2.0 gmodule-2.0 libglade-2.0` 230HOSTCFLAGS_gconf.o = `pkg-config --cflags gtk+-2.0 gmodule-2.0 libglade-2.0` \ 231 -Wno-missing-prototypes 232 233HOSTLOADLIBES_mconf = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ldflags $(HOSTCC)) 234 235HOSTLOADLIBES_nconf = $(shell \ 236 pkg-config --libs menuw panelw ncursesw 2>/dev/null \ 237 || pkg-config --libs menu panel ncurses 2>/dev/null \ 238 || echo "-lmenu -lpanel -lncurses" ) 239$(obj)/qconf.o: $(obj)/.tmp_qtcheck 240 241ifeq ($(MAKECMDGOALS),xconfig) 242$(obj)/.tmp_qtcheck: $(src)/Makefile 243-include $(obj)/.tmp_qtcheck 244 245# Qt needs some extra effort... 246$(obj)/.tmp_qtcheck: 247 @set -e; $(kecho) " CHECK qt"; \ 248 if pkg-config --exists Qt5Core; then \ 249 cflags="-std=c++11 -fPIC `pkg-config --cflags Qt5Core Qt5Gui Qt5Widgets`"; \ 250 libs=`pkg-config --libs Qt5Core Qt5Gui Qt5Widgets`; \ 251 moc=`pkg-config --variable=host_bins Qt5Core`/moc; \ 252 elif pkg-config --exists QtCore; then \ 253 cflags=`pkg-config --cflags QtCore QtGui`; \ 254 libs=`pkg-config --libs QtCore QtGui`; \ 255 moc=`pkg-config --variable=moc_location QtCore`; \ 256 else \ 257 echo >&2 "*"; \ 258 echo >&2 "* Could not find Qt via pkg-config."; \ 259 echo >&2 "* Please install either Qt 4.8 or 5.x. and make sure it's in PKG_CONFIG_PATH"; \ 260 echo >&2 "*"; \ 261 exit 1; \ 262 fi; \ 263 echo "KC_QT_CFLAGS=$$cflags" > $@; \ 264 echo "KC_QT_LIBS=$$libs" >> $@; \ 265 echo "KC_QT_MOC=$$moc" >> $@ 266endif 267 268$(obj)/gconf.o: $(obj)/.tmp_gtkcheck 269 270ifeq ($(MAKECMDGOALS),gconfig) 271-include $(obj)/.tmp_gtkcheck 272 273# GTK+ needs some extra effort, too... 274$(obj)/.tmp_gtkcheck: 275 @if `pkg-config --exists gtk+-2.0 gmodule-2.0 libglade-2.0`; then \ 276 if `pkg-config --atleast-version=2.0.0 gtk+-2.0`; then \ 277 touch $@; \ 278 else \ 279 echo >&2 "*"; \ 280 echo >&2 "* GTK+ is present but version >= 2.0.0 is required."; \ 281 echo >&2 "*"; \ 282 false; \ 283 fi \ 284 else \ 285 echo >&2 "*"; \ 286 echo >&2 "* Unable to find the GTK+ installation. Please make sure that"; \ 287 echo >&2 "* the GTK+ 2.0 development package is correctly installed..."; \ 288 echo >&2 "* You need gtk+-2.0, glib-2.0 and libglade-2.0."; \ 289 echo >&2 "*"; \ 290 false; \ 291 fi 292endif 293 294$(obj)/zconf.tab.o: $(obj)/zconf.lex.c $(obj)/zconf.hash.c 295 296$(obj)/qconf.o: $(obj)/qconf.moc 297 298quiet_cmd_moc = MOC $@ 299 cmd_moc = $(KC_QT_MOC) -i $< -o $@ 300 301$(obj)/%.moc: $(src)/%.h $(obj)/.tmp_qtcheck 302 $(call cmd,moc) 303 304# Extract gconf menu items for i18n support 305$(obj)/gconf.glade.h: $(obj)/gconf.glade 306 $(Q)intltool-extract --type=gettext/glade --srcdir=$(srctree) \ 307 $(obj)/gconf.glade 308