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Commit ba1fe90b authored by Nicholas Piggin's avatar Nicholas Piggin Committed by Greg Kroah-Hartman
Browse files

powerpc: avoid -mno-sched-epilog on GCC 4.9 and newer 



commit 6977f95e63b9b3fb4a5973481a800dd9f48a1338 upstream.

Signed-off-by: default avatarNicholas Piggin <npiggin@gmail.com>
Reviewed-by: default avatarJoel Stanley <joel@jms.id.au>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Signed-off-by: default avatarNathan Chancellor <natechancellor@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 24e26062

arch/powerpc/Makefile

+6 −2
Original line number Diff line number Diff line
@@ -165,8 +165,12 @@ CC_FLAGS_FTRACE := -pg 
ifdef CONFIG_MPROFILE_KERNEL

CC_FLAGS_FTRACE += -mprofile-kernel

endif

# Work around a gcc code-gen bug with -fno-omit-frame-pointer.

CC_FLAGS_FTRACE	+= -mno-sched-epilog

# Work around gcc code-gen bugs with -pg / -fno-omit-frame-pointer in gcc <= 4.8

# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44199

# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52828

ifneq ($(cc-name),clang)

CC_FLAGS_FTRACE	+= $(call cc-ifversion, -lt, 0409, -mno-sched-epilog)

endif

endif



CFLAGS-$(CONFIG_TARGET_CPU_BOOL) += $(call cc-option,-mcpu=$(CONFIG_TARGET_CPU))