diff options
| author | Nick Desaulniers <nick.desaulniers@gmail.com> | 2017-05-08 20:29:46 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-05-09 08:16:45 +0200 |
| commit | 4a1bec4605838fd7872ec41677585e241e256785 (patch) | |
| tree | 77cef3a06bb431c355375b79b4754dab6f83fe13 /arch/x86 | |
| parent | d2b6dc61a8dd3c429609b993778cb54e75a5c5f0 (diff) | |
| download | linux-4a1bec4605838fd7872ec41677585e241e256785.tar.bz2 | |
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 <nick.desaulniers@gmail.com>
Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20170509032946.20444-1-nick.desaulniers@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/Makefile | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/Makefile b/arch/x86/Makefile index 4430dd489620..5851411e60fb 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 |