--- zzzz-none-000/linux-3.10.107/kernel/events/Makefile	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/kernel/events/Makefile	2021-02-04 17:41:59.000000000 +0000
@@ -1,5 +1,5 @@
 ifdef CONFIG_FUNCTION_TRACER
-CFLAGS_REMOVE_core.o = -pg
+CFLAGS_REMOVE_core.o = $(CC_FLAGS_FTRACE)
 endif
 
 obj-y := core.o ring_buffer.o callchain.o