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authorMasahiro Yamada <yamada.masahiro@socionext.com>2018-11-12 11:35:19 +0900
committerBorislav Petkov <bp@suse.de>2018-12-09 11:51:11 +0100
commit829889ac4a7d26858860c297e64051bd27ce8fbe (patch)
tree720a015aa96264f426d69a9d8b7da06a7a90c62e /arch/x86/Makefile.um
parent2595646791c319cadfdbf271563aac97d0843dc7 (diff)
downloadtalos-op-linux-829889ac4a7d26858860c297e64051bd27ce8fbe.tar.gz
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x86/um: Remove -fno-unit-at-a-time workaround for pre-4.0 GCC
Commit cafa0010cd51 ("Raise the minimum required gcc version to 4.6") bumped the minimum GCC version to 4.6 for all architectures. '$(call cc-option,-fno-unit-at-a-time)' is now dead code since '$(cc-version) -lt 0400' is always false. Remove it. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Richard Weinberger <richard@nod.at> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linuxppc-dev@lists.ozlabs.org Cc: x86-ml <x86@kernel.org> Link: https://lkml.kernel.org/r/1541990120-9643-2-git-send-email-yamada.masahiro@socionext.com
Diffstat (limited to 'arch/x86/Makefile.um')
-rw-r--r--arch/x86/Makefile.um8
1 files changed, 2 insertions, 6 deletions
diff --git a/arch/x86/Makefile.um b/arch/x86/Makefile.um
index 91085a08de6c..577976b7d1f8 100644
--- a/arch/x86/Makefile.um
+++ b/arch/x86/Makefile.um
@@ -26,12 +26,8 @@ cflags-y += $(call cc-option,-mpreferred-stack-boundary=2)
# an unresolved reference.
cflags-y += -ffreestanding
-# Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
-# a lot more stack due to the lack of sharing of stacklots. Also, gcc
-# 4.3.0 needs -funit-at-a-time for extern inline functions.
-KBUILD_CFLAGS += $(shell if [ $(cc-version) -lt 0400 ] ; then \
- echo $(call cc-option,-fno-unit-at-a-time); \
- else echo $(call cc-option,-funit-at-a-time); fi ;)
+# gcc 4.3.0 needs -funit-at-a-time for extern inline functions.
+KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time)
KBUILD_CFLAGS += $(cflags-y)
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