--- old/hotspot/make/gensrc/GensrcAdlc.gmk	2016-12-02 11:14:45.541474048 -0500
+++ new/hotspot/make/gensrc/GensrcAdlc.gmk	2016-12-02 11:14:43.917381949 -0500
@@ -114,6 +114,10 @@
     ADLCFLAGS += -U_LP64
   endif
 
+  ifeq ($(HOTSPOT_TARGET_CPU_ARCH), arm)
+    ADLCFLAGS += -DARM=1
+  endif
+
   ##############################################################################
   # Concatenate all ad source files into a single file, which will be fed to
   # adlc. Also include a #line directive at the start of every included file