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-rw-r--r--arch/s390/Makefile12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index 878e67973151..acb6859c6a95 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -42,6 +42,7 @@ mflags-$(CONFIG_MARCH_Z9_109) := -march=z9-109
mflags-$(CONFIG_MARCH_Z10) := -march=z10
mflags-$(CONFIG_MARCH_Z196) := -march=z196
mflags-$(CONFIG_MARCH_ZEC12) := -march=zEC12
+mflags-$(CONFIG_MARCH_Z13) := -march=z13
aflags-y += $(mflags-y)
cflags-y += $(mflags-y)
@@ -53,6 +54,7 @@ cflags-$(CONFIG_MARCH_Z9_109_TUNE) += -mtune=z9-109
cflags-$(CONFIG_MARCH_Z10_TUNE) += -mtune=z10
cflags-$(CONFIG_MARCH_Z196_TUNE) += -mtune=z196
cflags-$(CONFIG_MARCH_ZEC12_TUNE) += -mtune=zEC12
+cflags-$(CONFIG_MARCH_Z13_TUNE) += -mtune=z13
#KBUILD_IMAGE is necessary for make rpm
KBUILD_IMAGE :=arch/s390/boot/image
@@ -85,6 +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)