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-rw-r--r--scripts/kconfig/Makefile57
1 files changed, 24 insertions, 33 deletions
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 9c4d2412fb7..9645c073938 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -104,6 +104,23 @@ endif
%_defconfig: $(obj)/conf
$(Q)$< --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig)
+configfiles=$(wildcard $(srctree)/kernel/configs/$(1).config $(srctree)/arch/$(SRCARCH)/configs/$(1).config)
+
+define mergeconfig
+$(if $(wildcard $(objtree)/.config),, $(error You need an existing .config for this target))
+$(if $(call configfiles,$(1)),, $(error No configuration exists for this target on this architecture))
+$(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m -O $(objtree) $(objtree)/.config $(call configfiles,$(1))
+$(Q)yes "" | $(MAKE) -f $(srctree)/Makefile oldconfig
+endef
+
+PHONY += kvmconfig
+kvmconfig:
+ $(call mergeconfig,kvm_guest)
+
+PHONY += tinyconfig
+tinyconfig: allnoconfig
+ $(call mergeconfig,tiny)
+
# Help text used by make help
help:
@echo ' config - Update current config utilising a line-oriented program'
@@ -124,6 +141,8 @@ help:
@echo ' randconfig - New config with random answer to all options'
@echo ' listnewconfig - List new options'
@echo ' olddefconfig - Same as silentoldconfig but sets new symbols to their default value'
+ @echo ' kvmconfig - Enable additional options for guest kernel support'
+ @echo ' tinyconfig - Configure the tiniest possible kernel'
# lxdialog stuff
check-lxdialog := $(srctree)/$(src)/lxdialog/check-lxdialog.sh
@@ -157,39 +176,10 @@ qconf-cxxobjs := qconf.o
qconf-objs := zconf.tab.o
gconf-objs := gconf.o zconf.tab.o
-hostprogs-y := conf
-
-ifeq ($(MAKECMDGOALS),nconfig)
- hostprogs-y += nconf
-endif
-
-ifeq ($(MAKECMDGOALS),menuconfig)
- hostprogs-y += mconf
-endif
-
-ifeq ($(MAKECMDGOALS),update-po-config)
- hostprogs-y += kxgettext
-endif
-
-ifeq ($(MAKECMDGOALS),xconfig)
- qconf-target := 1
-endif
-ifeq ($(MAKECMDGOALS),gconfig)
- gconf-target := 1
-endif
-
-
-ifeq ($(qconf-target),1)
- hostprogs-y += qconf
-endif
-
-ifeq ($(gconf-target),1)
- hostprogs-y += gconf
-endif
+hostprogs-y := conf nconf mconf kxgettext qconf gconf
clean-files := qconf.moc .tmp_qtcheck .tmp_gtkcheck
clean-files += zconf.tab.c zconf.lex.c zconf.hash.c gconf.glade.h
-clean-files += mconf qconf gconf nconf
clean-files += config.pot linux.pot
# Check that we have the required ncurses stuff installed for lxdialog (menuconfig)
@@ -220,11 +210,12 @@ HOSTCFLAGS_gconf.o = `pkg-config --cflags gtk+-2.0 gmodule-2.0 libglade-2.0` \
HOSTLOADLIBES_mconf = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ldflags $(HOSTCC))
HOSTLOADLIBES_nconf = $(shell \
- pkg-config --libs menu panel ncurses 2>/dev/null \
+ pkg-config --libs menuw panelw ncursesw 2>/dev/null \
+ || pkg-config --libs menu panel ncurses 2>/dev/null \
|| echo "-lmenu -lpanel -lncurses" )
$(obj)/qconf.o: $(obj)/.tmp_qtcheck
-ifeq ($(qconf-target),1)
+ifeq ($(MAKECMDGOALS),xconfig)
$(obj)/.tmp_qtcheck: $(src)/Makefile
-include $(obj)/.tmp_qtcheck
@@ -281,7 +272,7 @@ endif
$(obj)/gconf.o: $(obj)/.tmp_gtkcheck
-ifeq ($(gconf-target),1)
+ifeq ($(MAKECMDGOALS),gconfig)
-include $(obj)/.tmp_gtkcheck
# GTK needs some extra effort, too...