x86/um: Remove -fno-unit-at-a-time workaround for pre-4.0 GCC
Commit
cafa0010cd
("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
hifive-unleashed-5.1
parent
2595646791
commit
829889ac4a
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@ -26,12 +26,8 @@ cflags-y += $(call cc-option,-mpreferred-stack-boundary=2)
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# an unresolved reference.
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cflags-y += -ffreestanding
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# Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
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# a lot more stack due to the lack of sharing of stacklots. Also, gcc
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# 4.3.0 needs -funit-at-a-time for extern inline functions.
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KBUILD_CFLAGS += $(shell if [ $(cc-version) -lt 0400 ] ; then \
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echo $(call cc-option,-fno-unit-at-a-time); \
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else echo $(call cc-option,-funit-at-a-time); fi ;)
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# gcc 4.3.0 needs -funit-at-a-time for extern inline functions.
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KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time)
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KBUILD_CFLAGS += $(cflags-y)
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