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authorLinus Torvalds <torvalds@linux-foundation.org>2014-03-31 11:59:31 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-03-31 11:59:31 -0700
commit54cad6270a30edc75276c653ccb81dc313f0fcde (patch)
treecaaf3cee212da8cc8982816eff6ae0b5f5b4318e /arch
parent6ed7705167dd056c61b1954fe1366fcddb5bda98 (diff)
parentb399fe355b30d0102e7690c99e6f764ddfd32ec3 (diff)
downloadlinux-54cad6270a30edc75276c653ccb81dc313f0fcde.tar.gz
Merge branch 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 build change from Ingo Molnar: "Explicitly disable x87 FPU instructions, to catch mistaken floating point use at build time, instead of crashing or misbehaving during run time" * 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86: Disable generation of traditional x87 instructions
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/Makefile4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index eeda43abed6e..a414b1471ffc 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)