src/hotspot/share/gc/z/zBarrier.hpp

@@ -30,10 +30,13 @@
 typedef bool (*ZBarrierFastPath)(uintptr_t);
 typedef uintptr_t (*ZBarrierSlowPath)(uintptr_t);
 
 class ZBarrier : public AllStatic {
 private:
+  static const bool Follow      = true;
+  static const bool DontFollow  = false;
+
   static const bool Strong      = false;
   static const bool Finalizable = true;
 
   static const bool Publish     = true;
   static const bool Overflow    = false;

@@ -49,11 +52,11 @@
   static bool is_resurrection_blocked(volatile oop* p, oop* o);
 
   static bool during_mark();
   static bool during_relocate();
   template <bool finalizable> static bool should_mark_through(uintptr_t addr);
-  template <bool finalizable, bool publish> static uintptr_t mark(uintptr_t addr);
+  template <bool follow, bool finalizable, bool publish> static uintptr_t mark(uintptr_t addr);
   static uintptr_t remap(uintptr_t addr);
   static uintptr_t relocate(uintptr_t addr);
   static uintptr_t relocate_or_mark(uintptr_t addr);
   static uintptr_t relocate_or_remap(uintptr_t addr);
 

@@ -67,10 +70,11 @@
   static uintptr_t keep_alive_barrier_on_phantom_oop_slow_path(uintptr_t addr);
 
   static uintptr_t mark_barrier_on_oop_slow_path(uintptr_t addr);
   static uintptr_t mark_barrier_on_finalizable_oop_slow_path(uintptr_t addr);
   static uintptr_t mark_barrier_on_root_oop_slow_path(uintptr_t addr);
+  static uintptr_t mark_barrier_on_invisible_root_oop_slow_path(uintptr_t addr);
 
   static uintptr_t relocate_barrier_on_root_oop_slow_path(uintptr_t addr);
 
 public:
   // Load barrier

@@ -104,10 +108,11 @@
 
   // Mark barrier
   static void mark_barrier_on_oop_field(volatile oop* p, bool finalizable);
   static void mark_barrier_on_oop_array(volatile oop* p, size_t length, bool finalizable);
   static void mark_barrier_on_root_oop_field(oop* p);
+  static void mark_barrier_on_invisible_root_oop_field(oop* p);
 
   // Relocate barrier
   static void relocate_barrier_on_root_oop_field(oop* p);
 
   // Narrow oop variants, never used.