[PATCH] x86: prevent gcc from emitting SSE into boot code

[Dmitry Vyukov]

Latest gcc manages to emit MOVDQA into boot code
which leads to crashes. Add more -mno-see flags.

Signed-off-by: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
---
 arch/x86/boot/compressed/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
index f135688..7eaafb8 100644
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -31,7 +31,7 @@ KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
 cflags-$(CONFIG_X86_32) := -march=i386
 cflags-$(CONFIG_X86_64) := -mcmodel=small
 KBUILD_CFLAGS += $(cflags-y)
-KBUILD_CFLAGS += -mno-mmx -mno-sse
+KBUILD_CFLAGS += -mno-mmx -mno-sse -mno-sse2 -mno-sse3
 KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
 
-- 
2.8.0.rc3.226.g39d4020