mirror of https://gitee.com/openkylin/linux.git
powerpc: avoid -mno-sched-epilog on GCC 4.9 and newer
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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@ -165,8 +165,12 @@ CC_FLAGS_FTRACE := -pg
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ifdef CONFIG_MPROFILE_KERNEL
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CC_FLAGS_FTRACE += -mprofile-kernel
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endif
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# Work around a gcc code-gen bug with -fno-omit-frame-pointer.
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CC_FLAGS_FTRACE += -mno-sched-epilog
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# Work around gcc code-gen bugs with -pg / -fno-omit-frame-pointer in gcc <= 4.8
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# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44199
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# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52828
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ifneq ($(cc-name),clang)
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CC_FLAGS_FTRACE += $(call cc-ifversion, -lt, 0409, -mno-sched-epilog)
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endif
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endif
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CFLAGS-$(CONFIG_TARGET_CPU_BOOL) += $(call cc-option,-mcpu=$(CONFIG_TARGET_CPU))
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