17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 int disarmed_value() const;
38
39 protected:
40 virtual bool nmethod_entry_barrier(nmethod* nm) = 0;
41
42 public:
43 virtual ByteSize thread_disarmed_offset() const = 0;
44 virtual int* disarmed_value_address() const = 0;
45
46 static int nmethod_stub_entry_barrier(address* return_address_ptr);
47 bool nmethod_osr_entry_barrier(nmethod* nm);
48 bool is_armed(nmethod* nm);
49 void disarm(nmethod* nm);
50 };
51
52
53 #endif // SHARE_GC_SHARED_BARRIERSETNMETHOD_HPP
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