scripts/kconfig/Makefile

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