From: Stephen Rothwell <s...@canb.auug.org.au>
After this change, doing a "make xxx_defconfig" will check first for
a file called arch/<arch>/configs/Kconfig.xxx and use that to generate
the .config (effectively starting from an allnoconfig). If that file
doesn't exist, it will use arch/<ARCH>/configs/xxx_defconfig as now.
CC: Grant Likely <grant.lik...@secretlab.ca>
CC: Jason Hui <jason....@linaro.org>
CC: patc...@linaro.org
Signed-off-by: Stephen Rothwell <s...@canb.auug.org.au>
Signed-off-by: John Stultz <john.stu...@linaro.org>
---
scripts/kconfig/Makefile | 14 +++++++++++++-
1 files changed, 13 insertions(+), 1 deletions(-)
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 368ae30..f1ef231 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -116,9 +116,21 @@ else
$(Q)$< --defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)
$(Kconfig)
endif
-%_defconfig: $(obj)/conf
+configs_dir := $(srctree)/arch/$(SRCARCH)/configs
+# We check a level of sub directories because arch/powerpc
+# has its defconfig files arranged that way
+old_defconfigs := $(patsubst $(configs_dir)/%,%,\
+ $(wildcard $(configs_dir)/*_defconfig) \
+ $(wildcard $(configs_dir)/*/*_defconfig))
+defconfigs := $(patsubst $(configs_dir)/Kconfig.%,%_defconfig,\
+ $(wildcard $(configs_dir)/Kconfig.*))
+
+$(old_defconfigs): %_defconfig: $(obj)/conf
$(Q)$< --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig)
+$(defconfigs): %_defconfig: $(obj)/conf
+ $(Q)$< -n arch/$(SRCARCH)/configs/Kconfig.$*
+
# Help text used by make help
help:
@echo ' config - Update current config utilising a
line-oriented program'
--
1.7.3.2.146.gca209
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