src/share/vm/gc/g1/g1SATBCardTableModRefBS.hpp

@@ -36,10 +36,11 @@
 
 // This barrier is specialized to use a logging barrier to support
 // snapshot-at-the-beginning marking.
 
 class G1SATBCardTableModRefBS: public CardTableModRefBS {
+  friend class VMStructs;
 protected:
   enum G1CardValues {
     g1_young_gen = CT_MR_BS_last_reserved << 1
   };
 

@@ -120,10 +121,13 @@
 
   bool is_card_deferred(size_t card_index) {
     jbyte val = _byte_map[card_index];
     return (val & (clean_card_mask_val() | deferred_card_val())) == deferred_card_val();
   }
+  virtual void write_ref_nmethod_pre(oop* dst, nmethod* nm);
+  virtual void write_ref_nmethod_post(oop* dst, nmethod* nm);
+
 };
 
 template<>
 struct BarrierSet::GetName<G1SATBCardTableModRefBS> {
   static const BarrierSet::Name value = BarrierSet::G1SATBCT;