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Subject[GIT PULL] x86/build change for v3.15
Linus,

Please pull the latest x86-build-for-linus git tree from:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-build-for-linus

# HEAD: b399fe355b30d0102e7690c99e6f764ddfd32ec3 x86: Disable generation of traditional x87 instructions

Explicitly disable x87 FPU instructions, to catch mistaken floating
point use at build time, instead of crashing or misbehaving during run
time.

Thanks,

Ingo

------------------>
Borislav Petkov (1):
x86: Disable generation of traditional x87 instructions


arch/x86/Makefile | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index eeda43a..a414b14 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -82,8 +82,8 @@ else
KBUILD_AFLAGS += -m64
KBUILD_CFLAGS += -m64

- # Don't autogenerate MMX or SSE instructions
- KBUILD_CFLAGS += -mno-mmx -mno-sse
+ # Don't autogenerate traditional x87, MMX or SSE instructions
+ KBUILD_CFLAGS += -mno-mmx -mno-sse -mno-80387 -mno-fp-ret-in-387

# Use -mpreferred-stack-boundary=3 if supported.
KBUILD_CFLAGS += $(call cc-option,-mpreferred-stack-boundary=3)

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