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-rw-r--r--arch/s390/Makefile5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index b3791fb094a8..74ef57dcfa60 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -34,6 +34,11 @@ cflags-$(CONFIG_MARCH_G5) += $(call cc-option,-march=g5)
34cflags-$(CONFIG_MARCH_Z900) += $(call cc-option,-march=z900) 34cflags-$(CONFIG_MARCH_Z900) += $(call cc-option,-march=z900)
35cflags-$(CONFIG_MARCH_Z990) += $(call cc-option,-march=z990) 35cflags-$(CONFIG_MARCH_Z990) += $(call cc-option,-march=z990)
36 36
37#
38# Prevent tail-call optimizations, to get clearer backtraces:
39#
40cflags-$(CONFIG_FRAME_POINTER) += -fno-optimize-sibling-calls
41
37# old style option for packed stacks 42# old style option for packed stacks
38ifeq ($(call cc-option-yn,-mkernel-backchain),y) 43ifeq ($(call cc-option-yn,-mkernel-backchain),y)
39cflags-$(CONFIG_PACK_STACK) += -mkernel-backchain -D__PACK_STACK 44cflags-$(CONFIG_PACK_STACK) += -mkernel-backchain -D__PACK_STACK