Currently CC_OPTIMIZE_FOR_DEBUGGING is only able to build with GCC. For clang, -Og optimization level could break kernel build. So make CC_OPTIMIZE_FOR_DEBUGGING visible only for GCC. Cc: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> Signed-off-by: Changbin Du <changbin.du@xxxxxxxxx> --- init/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/init/Kconfig b/init/Kconfig index 0fb9c0b5f1a1..d5fb0ee1400a 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1107,6 +1107,7 @@ config CC_OPTIMIZE_FOR_SIZE config CC_OPTIMIZE_FOR_DEBUGGING bool "Optimize for better debugging experience (-Og)" + depends on CC_IS_GCC depends on $(cc-option,-Og) select NO_AUTO_INLINE help -- 2.17.1