diff options
| author | Josh Triplett <josh@joshtriplett.org> | 2014-08-06 15:21:00 -0700 |
|---|---|---|
| committer | Josh Triplett <josh@joshtriplett.org> | 2014-08-08 16:27:14 -0700 |
| commit | 3aaefce10351fecab348f5e06857f44cafc61a62 (patch) | |
| tree | ab63e13c6a3300bc7df97c2a8f486b5d4a922931 /scripts/kconfig | |
| parent | 85417aef44fc58b08773117ceb1bc6ca5684e973 (diff) | |
| download | lwn-3aaefce10351fecab348f5e06857f44cafc61a62.tar.gz lwn-3aaefce10351fecab348f5e06857f44cafc61a62.zip | |
x86, platform, kconfig: move kvmconfig functionality to a helper
The new mergeconfig helper makes it easier to add other partial
configurations similar to kvmconfig. Architecture-independent portions
of those partial configurations should go in
kernel/configs/${name}.config, and architecture-dependent portions
should go in arch/${arch}/configs/${name}.config.
Based on a patch by Luis R. Rodriguez <mcgrof@suse.com>.
Originally-Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com>
Modified to make the helper name more general than just virtualization,
support architecture-dependent and architecture-independent partial
configurations, move the helper and kvmconfig to
scripts/kconfig/Makefile, and factor out more of the common file path.
Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Diffstat (limited to 'scripts/kconfig')
| -rw-r--r-- | scripts/kconfig/Makefile | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile index 9c4d2412fb72..8083b94b45ee 100644 --- a/scripts/kconfig/Makefile +++ b/scripts/kconfig/Makefile @@ -104,6 +104,19 @@ 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) + # Help text used by make help help: @echo ' config - Update current config utilising a line-oriented program' @@ -124,6 +137,7 @@ 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' # lxdialog stuff check-lxdialog := $(srctree)/$(src)/lxdialog/check-lxdialog.sh |