20  * or visit www.oracle.com if you need additional information or have any
21  * questions.
22  *
23  */
24 
25 #ifndef SHARE_GC_SHARED_BARRIERSETNMETHOD_HPP
26 #define SHARE_GC_SHARED_BARRIERSETNMETHOD_HPP
27 
28 #include "memory/allocation.hpp"
29 #include "utilities/globalDefinitions.hpp"
30 #include "utilities/sizes.hpp"
31 
32 class nmethod;
33 
34 class BarrierSetNMethod: public CHeapObj<mtGC> {
35   bool supports_entry_barrier(nmethod* nm);
36   void deoptimize(nmethod* nm, address* return_addr_ptr);
37 
38 protected:
39   virtual int disarmed_value() const;
40   virtual bool nmethod_entry_barrier(nmethod* nm) = 0;
41 
42 public:
43   virtual ByteSize thread_disarmed_offset() const = 0;
44 

45   static int nmethod_stub_entry_barrier(address* return_address_ptr);
46   bool nmethod_osr_entry_barrier(nmethod* nm);
47   bool is_armed(nmethod* nm);
48   void disarm(nmethod* nm);
49 };
50 
51 
52 #endif // SHARE_GC_SHARED_BARRIERSETNMETHOD_HPP

20  * or visit www.oracle.com if you need additional information or have any
21  * questions.
22  *
23  */
24 
25 #ifndef SHARE_GC_SHARED_BARRIERSETNMETHOD_HPP
26 #define SHARE_GC_SHARED_BARRIERSETNMETHOD_HPP
27 
28 #include "memory/allocation.hpp"
29 #include "utilities/globalDefinitions.hpp"
30 #include "utilities/sizes.hpp"
31 
32 class nmethod;
33 
34 class BarrierSetNMethod: public CHeapObj<mtGC> {
35   bool supports_entry_barrier(nmethod* nm);
36   void deoptimize(nmethod* nm, address* return_addr_ptr);
37 
38 protected:
39   virtual int disarmed_value() const;

40 
41 public:
42   virtual ByteSize thread_disarmed_offset() const = 0;
43 
44   virtual bool nmethod_entry_barrier(nmethod* nm) = 0;
45   static int nmethod_stub_entry_barrier(address* return_address_ptr);
46   bool nmethod_osr_entry_barrier(nmethod* nm);
47   bool is_armed(nmethod* nm);
48   void disarm(nmethod* nm);
49 };
50 
51 
52 #endif // SHARE_GC_SHARED_BARRIERSETNMETHOD_HPP