Commit f716d5e5 authored Sep 14, 2018 by Nicholas Piggin Committed by Greg Kroah-Hartman Jan 13, 2019

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



commit 6977f95e63b9b3fb4a5973481a800dd9f48a1338 upstream.

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>
[nc: Adjust context due to lack of f2910f0e6835 and 2a056f58fd33]
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent aa71dcfe

arch/powerpc/Makefile

+6 −1

Original line number	Diff line number	Diff line
		@@ -236,7 +236,12 @@ endif

		# Work around a gcc code-gen bug with -fno-omit-frame-pointer.
		ifeq ($(CONFIG_FUNCTION_TRACER),y)
		KBUILD_CFLAGS += -mno-sched-epilog
		# Work around gcc code-gen bugs with -pg / -fno-omit-frame-pointer in gcc <= 4.8
		# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44199
		# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52828
		ifneq ($(cc-name),clang)
		KBUILD_CFLAGS += $(call cc-ifversion, -lt, 0409, -mno-sched-epilog)
		endif
		endif

		cpu-as-$(CONFIG_4xx) += -Wa,-m405