AuxXxilium/linux_dsm_epyc7002
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Merge branch 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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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
This commit is contained in:
Linus Torvalds 2014-03-31 11:59:31 -07:00
commit 54cad6270a
1 changed files with 2 additions and 2 deletions
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arch/x86/Makefile
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@ -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)