From e85d1d65cd8a9083040e280d172eba762875f8f1 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Wed, 22 Aug 2018 22:51:09 +0900 Subject: kbuild: test dead code/data elimination support in Kconfig This config option should be enabled only when both the compiler and the linker support necessary flags. Add proper dependencies to Kconfig. Signed-off-by: Masahiro Yamada --- init/Kconfig | 2 ++ 1 file changed, 2 insertions(+) (limited to 'init') diff --git a/init/Kconfig b/init/Kconfig index 9bd50ba8253f..21b855921eaf 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1085,6 +1085,8 @@ config LD_DEAD_CODE_DATA_ELIMINATION bool "Dead code and data elimination (EXPERIMENTAL)" depends on HAVE_LD_DEAD_CODE_DATA_ELIMINATION depends on EXPERT + depends on $(cc-option,-ffunction-sections -fdata-sections) + depends on $(ld-option,--gc-sections) help Enable this if you want to do dead code and data elimination with the linker by compiling with -ffunction-sections -fdata-sections, -- cgit v1.2.3