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Commit bdc9c3e5 authored by Masahiro Yamada's avatar Masahiro Yamada Committed by Ingo Molnar
Browse files

x86/build: Remove old -funit-at-a-time GCC quirk 



The following commit:

  e501ce95 ("x86: Force asm-goto")

... bumped the minimum GCC version to 4.5 for building the x86 kernel.

arch/x86/Makefile no longer needs to take care of older GCC versions,
such as this pre-4.0 -funit-at-a-time quirk.

Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Link: http://lkml.kernel.org/r/1531138041-24200-1-git-send-email-yamada.masahiro@socionext.com


Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent 9d3cce1e

arch/x86/Makefile

+0 −5
Original line number Diff line number Diff line
@@ -80,11 +80,6 @@ ifeq ($(CONFIG_X86_32),y) 
        # alignment instructions.

        KBUILD_CFLAGS += $(call cc-option,$(cc_stack_align4))



        # 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:

        KBUILD_CFLAGS += $(call cc-ifversion, -lt, 0400, \

				$(call cc-option,-fno-unit-at-a-time))



        # CPU-specific tuning. Anything which can be shared with UML should go here.

        include arch/x86/Makefile_32.cpu

        KBUILD_CFLAGS += $(cflags-y)