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-rw-r--r--arch/parisc/Makefile18
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index c19af26febe6..58d46665cad9 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -47,6 +47,24 @@ ifneq ($(SUBARCH),$(UTS_MACHINE))
endif
endif
+ifdef CONFIG_DYNAMIC_FTRACE
+ifdef CONFIG_64BIT
+NOP_COUNT := 8
+else
+NOP_COUNT := 5
+endif
+
+export CC_USING_RECORD_MCOUNT:=1
+export CC_USING_PATCHABLE_FUNCTION_ENTRY:=1
+
+KBUILD_AFLAGS += -DCC_USING_PATCHABLE_FUNCTION_ENTRY=1
+KBUILD_CFLAGS += -DCC_USING_PATCHABLE_FUNCTION_ENTRY=1 \
+ -DFTRACE_PATCHABLE_FUNCTION_SIZE=$(NOP_COUNT)
+
+CC_FLAGS_FTRACE := -fpatchable-function-entry=$(NOP_COUNT),$(shell echo $$(($(NOP_COUNT)-1)))
+KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/parisc/kernel/module.lds
+endif
+
OBJCOPY_FLAGS =-O binary -R .note -R .comment -S
cflags-y := -pipe