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

Pull x86 build update from Ingo Molnar:
 "A single CLang support related fix"

* 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/kbuild: Use cc-option to enable -falign-{jumps/loops}
This commit is contained in:
Linus Torvalds 2017-05-01 22:33:43 -07:00
parent 3fb9268e43 2c4fd1ac3f
commit 66acd7fc94
1 changed files with 2 additions and 2 deletions
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4
arch/x86/Makefile
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@ -88,10 +88,10 @@ else
KBUILD_CFLAGS += -m64
# Align jump targets to 1 byte, not the default 16 bytes:
KBUILD_CFLAGS += -falign-jumps=1
KBUILD_CFLAGS += $(call cc-option,-falign-jumps=1)
# Pack loops tightly as well:
KBUILD_CFLAGS += -falign-loops=1
KBUILD_CFLAGS += $(call cc-option,-falign-loops=1)
# Don't autogenerate traditional x87 instructions
KBUILD_CFLAGS += $(call cc-option,-mno-80387)