Commit-ID: 4a1bec4605838fd7872ec41677585e241e256785 Gitweb: http://git.kernel.org/tip/4a1bec4605838fd7872ec41677585e241e256785 Author: Nick Desaulniers <[email protected]> AuthorDate: Mon, 8 May 2017 20:29:46 -0700 Committer: Ingo Molnar <[email protected]> CommitDate: Tue, 9 May 2017 08:16:45 +0200
x86/build: Don't add -maccumulate-outgoing-args w/o compiler support Clang does not support this machine dependent option. Older versions of GCC (pre 3.0) may not support this option, added in 2000, but it's unlikely they can still compile a working kernel. Signed-off-by: Nick Desaulniers <[email protected]> Reviewed-by: Josh Poimboeuf <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]> --- arch/x86/Makefile | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/x86/Makefile b/arch/x86/Makefile index 4430dd4..5851411 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -179,7 +179,8 @@ ifdef CONFIG_JUMP_LABEL endif ifeq ($(ACCUMULATE_OUTGOING_ARGS), 1) - KBUILD_CFLAGS += -maccumulate-outgoing-args + # This compiler flag is not supported by Clang: + KBUILD_CFLAGS += $(call cc-option,-maccumulate-outgoing-args,) endif # Stackpointer is addressed different for 32 bit and 64 bit x86
