4.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Nicholas Piggin <npiggin@xxxxxxxxx> commit 6977f95e63b9b3fb4a5973481a800dd9f48a1338 upstream. Signed-off-by: Nicholas Piggin <npiggin@xxxxxxxxx> Reviewed-by: Joel Stanley <joel@xxxxxxxxx> Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> [nc: Adjust context due to lack of f2910f0e6835 and 2a056f58fd33] Signed-off-by: Nathan Chancellor <natechancellor@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- arch/powerpc/Makefile | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) --- a/arch/powerpc/Makefile +++ b/arch/powerpc/Makefile @@ -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
