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-rw-r--r--scripts/kconfig/Makefile230
1 files changed, 230 insertions, 0 deletions
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
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index 000000000..67ed9f6cc
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+++ b/scripts/kconfig/Makefile
@@ -0,0 +1,230 @@
+# 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
+
+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 += oldnoconfig silentoldconfig savedefconfig defconfig
+
+# oldnoconfig is an alias of olddefconfig, because people already are dependent
+# on its behavior (sets new symbols to their default value but not 'n') with the
+# counter-intuitive name.
+oldnoconfig: olddefconfig
+ @echo " WARNING: \"oldnoconfig\" target will be removed after Linux 4.19"
+ @echo " Please use \"olddefconfig\" instead, which is an alias."
+
+# We do not expect manual invokcation of "silentoldcofig" (or "syncconfig").
+silentoldconfig: syncconfig
+ @echo " WARNING: \"silentoldconfig\" has been renamed to \"syncconfig\""
+ @echo " and is now an internal implementation detail."
+ @echo " What you want is probably \"oldconfig\"."
+ @echo " \"silentoldconfig\" will be removed after Linux 4.19"
+
+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/$@ $(Kconfig)
+
+configfiles=$(wildcard $(srctree)/kernel/configs/$@ $(srctree)/arch/$(SRCARCH)/configs/$@)
+
+%.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=<path> 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