diff options
Diffstat (limited to 'arch/s390/Makefile')
| -rw-r--r-- | arch/s390/Makefile | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/s390/Makefile b/arch/s390/Makefile index e742ec5de9a7..acb6859c6a95 100644 --- a/arch/s390/Makefile +++ b/arch/s390/Makefile @@ -87,6 +87,16 @@ ifeq ($(call cc-option-yn,-mwarn-dynamicstack),y) cflags-$(CONFIG_WARN_DYNAMIC_STACK) += -mwarn-dynamicstack endif +ifdef CONFIG_FUNCTION_TRACER +# make use of hotpatch feature if the compiler supports it +cc_hotpatch := -mhotpatch=0,3 +ifeq ($(call cc-option-yn,$(cc_hotpatch)),y) +CC_FLAGS_FTRACE := $(cc_hotpatch) +KBUILD_AFLAGS += -DCC_USING_HOTPATCH +KBUILD_CFLAGS += -DCC_USING_HOTPATCH +endif +endif + KBUILD_CFLAGS += -mbackchain -msoft-float $(cflags-y) KBUILD_CFLAGS += -pipe -fno-strength-reduce -Wno-sign-compare KBUILD_AFLAGS += $(aflags-y) |