From 252cd205300c1b9945079c0ae1fe5980ef9dfa56 Mon Sep 17 00:00:00 2001 From: Yao Zi Date: Sun, 27 Apr 2025 14:50:10 +0000 Subject: [PATCH] Makefile: Strip leading spaces when preprocessing generated_defconfig Clang's preprocessor may emit extra spaces for lines starting with '#'. Lines with these extra characters cannot be handled by Kconfig and will be ignored with warnings like, unexpected data: # CONFIG_OF_BOARD_FIXUP is not set Those options that is expected to be assigned explicitly with N will be set to the default value, messing up board configurations. Let's sed these spaces away to ensure board configurations could be correctly generated with Clang. Link: https://github.com/llvm/llvm-project/issues/78778 Fixes: 2027e99e61a ("Makefile: Run defconfig files through the C preprocessor") Reported-by: Nathaniel Hourt Signed-off-by: Yao Zi --- scripts/kconfig/Makefile | 1 + 1 file changed, 1 insertion(+) diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile index 079add4d5da..ba30652f01a 100644 --- a/scripts/kconfig/Makefile +++ b/scripts/kconfig/Makefile @@ -94,6 +94,7 @@ endif %_defconfig: $(obj)/conf $(Q)$(CPP) -nostdinc -P -I $(srctree) -undef -x assembler-with-cpp $(srctree)/arch/$(SRCARCH)/configs/$@ -o generated_defconfig + $(Q)sed -i -e 's/^[[:space:]]//' generated_defconfig $(Q)$< $(silent) --defconfig=generated_defconfig $(Kconfig) # Added for U-Boot (backward compatibility) -- 2.39.5