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src/share/vm/code/nmethod.hpp

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rev 10557 : 8153267: nmethod's exception cache not multi-thread safe
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*** 239,249 **** // set to [(ReservedCodeCacheSize / (1024 * 1024)) * 2] each time the method // is active while stack scanning (mark_active_nmethods()). The hotness // counter is decreased (by 1) while sweeping. int _hotness_counter; ! ExceptionCache *_exception_cache; PcDescCache _pc_desc_cache; // These are used for compiled synchronized native methods to // locate the owner and stack slot for the BasicLock so that we can // properly revoke the bias of the owner if necessary. They are --- 239,249 ---- // set to [(ReservedCodeCacheSize / (1024 * 1024)) * 2] each time the method // is active while stack scanning (mark_active_nmethods()). The hotness // counter is decreased (by 1) while sweeping. int _hotness_counter; ! ExceptionCache * volatile _exception_cache; PcDescCache _pc_desc_cache; // These are used for compiled synchronized native methods to // locate the owner and stack slot for the BasicLock so that we can // properly revoke the bias of the owner if necessary. They are
*** 431,441 **** unloaded = 3 }; // there should be no activations, should not be called, // will be transformed to zombie immediately // flag accessing and manipulation bool is_in_use() const { return _state == in_use; } ! bool is_alive() const { return _state == in_use || _state == not_entrant; } bool is_not_entrant() const { return _state == not_entrant; } bool is_zombie() const { return _state == zombie; } bool is_unloaded() const { return _state == unloaded; } // returns a string version of the nmethod state --- 431,441 ---- unloaded = 3 }; // there should be no activations, should not be called, // will be transformed to zombie immediately // flag accessing and manipulation bool is_in_use() const { return _state == in_use; } ! bool is_alive() const { unsigned char s = _state; return s == in_use || s == not_entrant; } bool is_not_entrant() const { return _state == not_entrant; } bool is_zombie() const { return _state == zombie; } bool is_unloaded() const { return _state == unloaded; } // returns a string version of the nmethod state
*** 576,585 **** --- 576,586 ---- void set_stack_traversal_mark(long l) { _stack_traversal_mark = l; } // Exception cache support ExceptionCache* exception_cache() const { return _exception_cache; } void set_exception_cache(ExceptionCache *ec) { _exception_cache = ec; } + void release_set_exception_cache(ExceptionCache *ec) { OrderAccess::release_store_ptr(&_exception_cache, ec); } address handler_for_exception_and_pc(Handle exception, address pc); void add_handler_for_exception_and_pc(Handle exception, address pc, address handler); void clean_exception_cache(BoolObjectClosure* is_alive); // implicit exceptions support
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