118 vframeArray* _vframe_array_head; // Holds the heap of the active vframeArrays
119 vframeArray* _vframe_array_last; // Holds last vFrameArray we popped
120 // Holds updates by JVMTI agents for compiled frames that cannot be performed immediately. They
121 // will be carried out as soon as possible which, in most cases, is just before deoptimization of
122 // the frame, when control returns to it.
123 JvmtiDeferredUpdates* _jvmti_deferred_updates;
124
125 // Handshake value for fixing 6243940. We need a place for the i2c
126 // adapter to store the callee Method*. This value is NEVER live
127 // across a gc point so it does NOT have to be gc'd
128 // The handshake is open ended since we can't be certain that it will
129 // be NULLed. This is because we rarely ever see the race and end up
130 // in handle_wrong_method which is the backend of the handshake. See
131 // code in i2c adapters and handle_wrong_method.
132
133 Method* _callee_target;
134
135 // Used to pass back results to the interpreter or generated code running Java code.
136 oop _vm_result; // oop result is GC-preserved
137 Metadata* _vm_result_2; // non-oop result
138
139 // See ReduceInitialCardMarks: this holds the precise space interval of
140 // the most recent slow path allocation for which compiled code has
141 // elided card-marks for performance along the fast-path.
142 MemRegion _deferred_card_mark;
143
144 ObjectMonitor* volatile _current_pending_monitor; // ObjectMonitor this thread is waiting to lock
145 bool _current_pending_monitor_is_from_java; // locking is from Java code
146 ObjectMonitor* volatile _current_waiting_monitor; // ObjectMonitor on which this thread called Object.wait()
147
148 // Active_handles points to a block of handles
149 JNIHandleBlock* _active_handles;
150
151 // One-element thread local free list
152 JNIHandleBlock* _free_handle_block;
153
154 public:
155 volatile intptr_t _Stalled;
156
157 // For tracking the heavyweight monitor the thread is pending on.
677 vframeArray* vframe_array_last() const { return _vframe_array_last; }
678
679 // The special resourceMark used during deoptimization
680
681 void set_deopt_mark(DeoptResourceMark* value) { _deopt_mark = value; }
682 DeoptResourceMark* deopt_mark(void) { return _deopt_mark; }
683
684 void set_deopt_compiled_method(CompiledMethod* nm) { _deopt_nmethod = nm; }
685 CompiledMethod* deopt_compiled_method() { return _deopt_nmethod; }
686
687 Method* callee_target() const { return _callee_target; }
688 void set_callee_target (Method* x) { _callee_target = x; }
689
690 // Oop results of vm runtime calls
691 oop vm_result() const { return _vm_result; }
692 void set_vm_result (oop x) { _vm_result = x; }
693
694 Metadata* vm_result_2() const { return _vm_result_2; }
695 void set_vm_result_2 (Metadata* x) { _vm_result_2 = x; }
696
697 MemRegion deferred_card_mark() const { return _deferred_card_mark; }
698 void set_deferred_card_mark(MemRegion mr) { _deferred_card_mark = mr; }
699
700 #if INCLUDE_JVMCI
701 int pending_deoptimization() const { return _pending_deoptimization; }
702 jlong pending_failed_speculation() const { return _pending_failed_speculation; }
703 bool has_pending_monitorenter() const { return _pending_monitorenter; }
704 void set_pending_monitorenter(bool b) { _pending_monitorenter = b; }
705 void set_pending_deoptimization(int reason) { _pending_deoptimization = reason; }
706 void set_pending_failed_speculation(jlong failed_speculation) { _pending_failed_speculation = failed_speculation; }
707 void set_pending_transfer_to_interpreter(bool b) { _pending_transfer_to_interpreter = b; }
708 void set_jvmci_alternate_call_target(address a) { assert(_jvmci._alternate_call_target == NULL, "must be"); _jvmci._alternate_call_target = a; }
709 void set_jvmci_implicit_exception_pc(address a) { assert(_jvmci._implicit_exception_pc == NULL, "must be"); _jvmci._implicit_exception_pc = a; }
710
711 virtual bool in_retryable_allocation() const { return _in_retryable_allocation; }
712 void set_in_retryable_allocation(bool b) { _in_retryable_allocation = b; }
713
714 JVMCIRuntime* libjvmci_runtime() const { return _libjvmci_runtime; }
715 void set_libjvmci_runtime(JVMCIRuntime* rt) {
716 assert((_libjvmci_runtime == nullptr && rt != nullptr) || (_libjvmci_runtime != nullptr && rt == nullptr), "must be");
750
751 // For assembly stub generation
752 static ByteSize threadObj_offset() { return byte_offset_of(JavaThread, _threadObj); }
753 static ByteSize vthread_offset() { return byte_offset_of(JavaThread, _vthread); }
754 static ByteSize jni_environment_offset() { return byte_offset_of(JavaThread, _jni_environment); }
755 static ByteSize pending_jni_exception_check_fn_offset() {
756 return byte_offset_of(JavaThread, _pending_jni_exception_check_fn);
757 }
758 static ByteSize last_Java_sp_offset() {
759 return byte_offset_of(JavaThread, _anchor) + JavaFrameAnchor::last_Java_sp_offset();
760 }
761 static ByteSize last_Java_pc_offset() {
762 return byte_offset_of(JavaThread, _anchor) + JavaFrameAnchor::last_Java_pc_offset();
763 }
764 static ByteSize frame_anchor_offset() {
765 return byte_offset_of(JavaThread, _anchor);
766 }
767 static ByteSize callee_target_offset() { return byte_offset_of(JavaThread, _callee_target); }
768 static ByteSize vm_result_offset() { return byte_offset_of(JavaThread, _vm_result); }
769 static ByteSize vm_result_2_offset() { return byte_offset_of(JavaThread, _vm_result_2); }
770 static ByteSize thread_state_offset() { return byte_offset_of(JavaThread, _thread_state); }
771 static ByteSize polling_word_offset() { return byte_offset_of(JavaThread, _poll_data) + byte_offset_of(SafepointMechanism::ThreadData, _polling_word);}
772 static ByteSize polling_page_offset() { return byte_offset_of(JavaThread, _poll_data) + byte_offset_of(SafepointMechanism::ThreadData, _polling_page);}
773 static ByteSize saved_exception_pc_offset() { return byte_offset_of(JavaThread, _saved_exception_pc); }
774 static ByteSize osthread_offset() { return byte_offset_of(JavaThread, _osthread); }
775 #if INCLUDE_JVMCI
776 static ByteSize pending_deoptimization_offset() { return byte_offset_of(JavaThread, _pending_deoptimization); }
777 static ByteSize pending_monitorenter_offset() { return byte_offset_of(JavaThread, _pending_monitorenter); }
778 static ByteSize pending_failed_speculation_offset() { return byte_offset_of(JavaThread, _pending_failed_speculation); }
779 static ByteSize jvmci_alternate_call_target_offset() { return byte_offset_of(JavaThread, _jvmci._alternate_call_target); }
780 static ByteSize jvmci_implicit_exception_pc_offset() { return byte_offset_of(JavaThread, _jvmci._implicit_exception_pc); }
781 static ByteSize jvmci_counters_offset() { return byte_offset_of(JavaThread, _jvmci_counters); }
782 #endif // INCLUDE_JVMCI
783 static ByteSize exception_oop_offset() { return byte_offset_of(JavaThread, _exception_oop); }
784 static ByteSize exception_pc_offset() { return byte_offset_of(JavaThread, _exception_pc); }
785 static ByteSize exception_handler_pc_offset() { return byte_offset_of(JavaThread, _exception_handler_pc); }
786 static ByteSize is_method_handle_return_offset() { return byte_offset_of(JavaThread, _is_method_handle_return); }
787
788 static ByteSize active_handles_offset() { return byte_offset_of(JavaThread, _active_handles); }
789
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118 vframeArray* _vframe_array_head; // Holds the heap of the active vframeArrays
119 vframeArray* _vframe_array_last; // Holds last vFrameArray we popped
120 // Holds updates by JVMTI agents for compiled frames that cannot be performed immediately. They
121 // will be carried out as soon as possible which, in most cases, is just before deoptimization of
122 // the frame, when control returns to it.
123 JvmtiDeferredUpdates* _jvmti_deferred_updates;
124
125 // Handshake value for fixing 6243940. We need a place for the i2c
126 // adapter to store the callee Method*. This value is NEVER live
127 // across a gc point so it does NOT have to be gc'd
128 // The handshake is open ended since we can't be certain that it will
129 // be NULLed. This is because we rarely ever see the race and end up
130 // in handle_wrong_method which is the backend of the handshake. See
131 // code in i2c adapters and handle_wrong_method.
132
133 Method* _callee_target;
134
135 // Used to pass back results to the interpreter or generated code running Java code.
136 oop _vm_result; // oop result is GC-preserved
137 Metadata* _vm_result_2; // non-oop result
138 oop _return_buffered_value; // buffered value being returned
139
140 // See ReduceInitialCardMarks: this holds the precise space interval of
141 // the most recent slow path allocation for which compiled code has
142 // elided card-marks for performance along the fast-path.
143 MemRegion _deferred_card_mark;
144
145 ObjectMonitor* volatile _current_pending_monitor; // ObjectMonitor this thread is waiting to lock
146 bool _current_pending_monitor_is_from_java; // locking is from Java code
147 ObjectMonitor* volatile _current_waiting_monitor; // ObjectMonitor on which this thread called Object.wait()
148
149 // Active_handles points to a block of handles
150 JNIHandleBlock* _active_handles;
151
152 // One-element thread local free list
153 JNIHandleBlock* _free_handle_block;
154
155 public:
156 volatile intptr_t _Stalled;
157
158 // For tracking the heavyweight monitor the thread is pending on.
678 vframeArray* vframe_array_last() const { return _vframe_array_last; }
679
680 // The special resourceMark used during deoptimization
681
682 void set_deopt_mark(DeoptResourceMark* value) { _deopt_mark = value; }
683 DeoptResourceMark* deopt_mark(void) { return _deopt_mark; }
684
685 void set_deopt_compiled_method(CompiledMethod* nm) { _deopt_nmethod = nm; }
686 CompiledMethod* deopt_compiled_method() { return _deopt_nmethod; }
687
688 Method* callee_target() const { return _callee_target; }
689 void set_callee_target (Method* x) { _callee_target = x; }
690
691 // Oop results of vm runtime calls
692 oop vm_result() const { return _vm_result; }
693 void set_vm_result (oop x) { _vm_result = x; }
694
695 Metadata* vm_result_2() const { return _vm_result_2; }
696 void set_vm_result_2 (Metadata* x) { _vm_result_2 = x; }
697
698 oop return_buffered_value() const { return _return_buffered_value; }
699 void set_return_buffered_value(oop val) { _return_buffered_value = val; }
700
701 MemRegion deferred_card_mark() const { return _deferred_card_mark; }
702 void set_deferred_card_mark(MemRegion mr) { _deferred_card_mark = mr; }
703
704 #if INCLUDE_JVMCI
705 int pending_deoptimization() const { return _pending_deoptimization; }
706 jlong pending_failed_speculation() const { return _pending_failed_speculation; }
707 bool has_pending_monitorenter() const { return _pending_monitorenter; }
708 void set_pending_monitorenter(bool b) { _pending_monitorenter = b; }
709 void set_pending_deoptimization(int reason) { _pending_deoptimization = reason; }
710 void set_pending_failed_speculation(jlong failed_speculation) { _pending_failed_speculation = failed_speculation; }
711 void set_pending_transfer_to_interpreter(bool b) { _pending_transfer_to_interpreter = b; }
712 void set_jvmci_alternate_call_target(address a) { assert(_jvmci._alternate_call_target == NULL, "must be"); _jvmci._alternate_call_target = a; }
713 void set_jvmci_implicit_exception_pc(address a) { assert(_jvmci._implicit_exception_pc == NULL, "must be"); _jvmci._implicit_exception_pc = a; }
714
715 virtual bool in_retryable_allocation() const { return _in_retryable_allocation; }
716 void set_in_retryable_allocation(bool b) { _in_retryable_allocation = b; }
717
718 JVMCIRuntime* libjvmci_runtime() const { return _libjvmci_runtime; }
719 void set_libjvmci_runtime(JVMCIRuntime* rt) {
720 assert((_libjvmci_runtime == nullptr && rt != nullptr) || (_libjvmci_runtime != nullptr && rt == nullptr), "must be");
754
755 // For assembly stub generation
756 static ByteSize threadObj_offset() { return byte_offset_of(JavaThread, _threadObj); }
757 static ByteSize vthread_offset() { return byte_offset_of(JavaThread, _vthread); }
758 static ByteSize jni_environment_offset() { return byte_offset_of(JavaThread, _jni_environment); }
759 static ByteSize pending_jni_exception_check_fn_offset() {
760 return byte_offset_of(JavaThread, _pending_jni_exception_check_fn);
761 }
762 static ByteSize last_Java_sp_offset() {
763 return byte_offset_of(JavaThread, _anchor) + JavaFrameAnchor::last_Java_sp_offset();
764 }
765 static ByteSize last_Java_pc_offset() {
766 return byte_offset_of(JavaThread, _anchor) + JavaFrameAnchor::last_Java_pc_offset();
767 }
768 static ByteSize frame_anchor_offset() {
769 return byte_offset_of(JavaThread, _anchor);
770 }
771 static ByteSize callee_target_offset() { return byte_offset_of(JavaThread, _callee_target); }
772 static ByteSize vm_result_offset() { return byte_offset_of(JavaThread, _vm_result); }
773 static ByteSize vm_result_2_offset() { return byte_offset_of(JavaThread, _vm_result_2); }
774 static ByteSize return_buffered_value_offset() { return byte_offset_of(JavaThread, _return_buffered_value); }
775 static ByteSize thread_state_offset() { return byte_offset_of(JavaThread, _thread_state); }
776 static ByteSize polling_word_offset() { return byte_offset_of(JavaThread, _poll_data) + byte_offset_of(SafepointMechanism::ThreadData, _polling_word);}
777 static ByteSize polling_page_offset() { return byte_offset_of(JavaThread, _poll_data) + byte_offset_of(SafepointMechanism::ThreadData, _polling_page);}
778 static ByteSize saved_exception_pc_offset() { return byte_offset_of(JavaThread, _saved_exception_pc); }
779 static ByteSize osthread_offset() { return byte_offset_of(JavaThread, _osthread); }
780 #if INCLUDE_JVMCI
781 static ByteSize pending_deoptimization_offset() { return byte_offset_of(JavaThread, _pending_deoptimization); }
782 static ByteSize pending_monitorenter_offset() { return byte_offset_of(JavaThread, _pending_monitorenter); }
783 static ByteSize pending_failed_speculation_offset() { return byte_offset_of(JavaThread, _pending_failed_speculation); }
784 static ByteSize jvmci_alternate_call_target_offset() { return byte_offset_of(JavaThread, _jvmci._alternate_call_target); }
785 static ByteSize jvmci_implicit_exception_pc_offset() { return byte_offset_of(JavaThread, _jvmci._implicit_exception_pc); }
786 static ByteSize jvmci_counters_offset() { return byte_offset_of(JavaThread, _jvmci_counters); }
787 #endif // INCLUDE_JVMCI
788 static ByteSize exception_oop_offset() { return byte_offset_of(JavaThread, _exception_oop); }
789 static ByteSize exception_pc_offset() { return byte_offset_of(JavaThread, _exception_pc); }
790 static ByteSize exception_handler_pc_offset() { return byte_offset_of(JavaThread, _exception_handler_pc); }
791 static ByteSize is_method_handle_return_offset() { return byte_offset_of(JavaThread, _is_method_handle_return); }
792
793 static ByteSize active_handles_offset() { return byte_offset_of(JavaThread, _active_handles); }
794
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