diff -r 2251ba078bec -r eb7ce841ccec make/linux/makefiles/vm.make
--- a/make/linux/makefiles/vm.make	Sat Oct 24 16:18:50 2020 +0800
+++ b/make/linux/makefiles/vm.make	Sat Oct 24 16:43:47 2020 +0800
@@ -169,7 +169,7 @@
 LIBJVM_DEBUGINFO   = lib$(JVM).debuginfo
 LIBJVM_DIZ         = lib$(JVM).diz
 
-ifeq ($(ENABLE_JFR),false)
+ifneq ($(ENABLE_JFR),true)
 EXCLUDE_JFR_PATHS:= -o -name jfr -prune
 endif
 SPECIAL_PATHS:=adlc c1 gc_implementation opto shark libadt