[PATCH 1/2] Makefile: Run defconfig files through the C preprocessor

Andrew Davis
2023-11-01T17:05:53Z

This allows us to use some of the normal preprocessor directives inside
defconfig files. Such as #define and #include.

Signed-off-by: Andrew Davis <afd@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
scripts/kconfig/Makefile | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 2d97aab8d21..5ce5845e824 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -93,7 +93,8 @@ endif
endif

%_defconfig: $(obj)/conf
- $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig)
+ $(Q)$(CPP) -nostdinc -I $(srctree) -undef -x assembler-with-cpp $(srctree)/arch/$(SRCARCH)/configs/$@ -o generated_defconfig
+ $(Q)$< $(silent) --defconfig=generated_defconfig $(Kconfig)

# Added for U-Boot (backward compatibility)
%_config: %_defconfig
--
2.39.2