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authorMasahiro Yamada <yamada.masahiro@socionext.com>2018-07-09 21:07:21 +0900
committerIngo Molnar <mingo@kernel.org>2018-07-16 00:25:10 +0200
commitbdc9c3e5ed953441a46ef3acd81c783d591c9a96 (patch)
tree257b3b61b7418499878f76327e0e373f677330c0 /arch/x86/Makefile
parent9d3cce1e8b8561fed5f383d22a4d6949db4eadbe (diff)
x86/build: Remove old -funit-at-a-time GCC quirk
The following commit: e501ce957a78 ("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: Masahiro 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: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/Makefile')
-rw-r--r--arch/x86/Makefile5
1 files changed, 0 insertions, 5 deletions
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index a08e82856563..7e3c07d6ad42 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -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)