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| author | Michael Ellerman <mpe@ellerman.id.au> | 2015-09-23 15:40:34 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2015-10-01 16:52:03 +1000 |
| commit | d2036f30cfe1daa19e63ce75afd56c7ffd39ef3c (patch) | |
| tree | f5ccd975122bc087f091835199c72ddfc3baf263 /scripts/kconfig/Makefile | |
| parent | 65d3223a853ac8598694064c1d37b0955e7d99cc (diff) | |
| download | lwn-d2036f30cfe1daa19e63ce75afd56c7ffd39ef3c.tar.gz lwn-d2036f30cfe1daa19e63ce75afd56c7ffd39ef3c.zip | |
scripts/kconfig/Makefile: Allow KBUILD_DEFCONFIG to be a target
Arch Makefiles can set KBUILD_DEFCONFIG to tell kbuild the name of the
defconfig that should be built by default.
However currently there is an assumption that KBUILD_DEFCONFIG points to
a file at arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG).
We would like to use a target, using merge_config, as our defconfig, so
adapt the logic in scripts/kconfig/Makefile to allow that.
To minimise the chance of breaking anything, we first check if
KBUILD_DEFCONFIG is a file, and if so we do the old logic. If it's not a
file, then we call the top-level Makefile with KBUILD_DEFCONFIG as the
target.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Michal Marek <mmarek@suse.com>
Diffstat (limited to 'scripts/kconfig/Makefile')
| -rw-r--r-- | scripts/kconfig/Makefile | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile index aceaaed09811..b2b9c87cec50 100644 --- a/scripts/kconfig/Makefile +++ b/scripts/kconfig/Makefile @@ -96,9 +96,12 @@ savedefconfig: $(obj)/conf defconfig: $(obj)/conf ifeq ($(KBUILD_DEFCONFIG),) $< $(silent) --defconfig $(Kconfig) -else +else ifneq ($(wildcard 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 %_defconfig: $(obj)/conf |