2761 // All strongly reachable oops have been marked at this point;
2762 // we can visit and clear any weak references from MDO's which
2763 // we memoized during the strong marking phase.
2764 if (PrintRevisitStats) {
2765 gclog_or_tty->print_cr("#classes in system dictionary = %d", SystemDictionary::number_of_classes());
2766 }
2767 for (uint i = 0; i < ParallelGCThreads + 1; i++) {
2768 ParCompactionManager* cm = ParCompactionManager::manager_array(i);
2769 GrowableArray<DataLayout*>* rms = cm->revisit_mdo_stack();
2770 int length = rms->length();
2771 if (PrintRevisitStats) {
2772 gclog_or_tty->print_cr("Revisit MDO stack[%d] length = %d", i, length);
2773 }
2774 for (int j = 0; j < length; j++) {
2775 rms->at(j)->follow_weak_refs(is_alive_closure());
2776 }
2777 // revisit_mdo_stack is cleared in reset()
2778 follow_stack(cm);
2779 }
2780 }
2781 #endif // ( COMPILER1 || COMPILER2 )
2782
2783
2784 #ifdef VALIDATE_MARK_SWEEP
2785
2786 void PSParallelCompact::track_adjusted_pointer(void* p, bool isroot) {
2787 if (!ValidateMarkSweep)
2788 return;
2789
2790 if (!isroot) {
2791 if (_pointer_tracking) {
2792 guarantee(_adjusted_pointers->contains(p), "should have seen this pointer");
2793 _adjusted_pointers->remove(p);
2794 }
2795 } else {
2796 ptrdiff_t index = _root_refs_stack->find(p);
2797 if (index != -1) {
2798 int l = _root_refs_stack->length();
2799 if (l > 0 && l - 1 != index) {
2800 void* last = _root_refs_stack->pop();
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2761 // All strongly reachable oops have been marked at this point;
2762 // we can visit and clear any weak references from MDO's which
2763 // we memoized during the strong marking phase.
2764 if (PrintRevisitStats) {
2765 gclog_or_tty->print_cr("#classes in system dictionary = %d", SystemDictionary::number_of_classes());
2766 }
2767 for (uint i = 0; i < ParallelGCThreads + 1; i++) {
2768 ParCompactionManager* cm = ParCompactionManager::manager_array(i);
2769 GrowableArray<DataLayout*>* rms = cm->revisit_mdo_stack();
2770 int length = rms->length();
2771 if (PrintRevisitStats) {
2772 gclog_or_tty->print_cr("Revisit MDO stack[%d] length = %d", i, length);
2773 }
2774 for (int j = 0; j < length; j++) {
2775 rms->at(j)->follow_weak_refs(is_alive_closure());
2776 }
2777 // revisit_mdo_stack is cleared in reset()
2778 follow_stack(cm);
2779 }
2780 }
2781 #else
2782 void PSParallelCompact::revisit_mdo(ParCompactionManager* cm, DataLayout* p) {
2783 ShouldNotCallThis();
2784 }
2785
2786 void PSParallelCompact::follow_mdo_weak_refs() {
2787 ShouldNotCallThis();
2788 }
2789 #endif // ( COMPILER1 || COMPILER2 )
2790
2791
2792 #ifdef VALIDATE_MARK_SWEEP
2793
2794 void PSParallelCompact::track_adjusted_pointer(void* p, bool isroot) {
2795 if (!ValidateMarkSweep)
2796 return;
2797
2798 if (!isroot) {
2799 if (_pointer_tracking) {
2800 guarantee(_adjusted_pointers->contains(p), "should have seen this pointer");
2801 _adjusted_pointers->remove(p);
2802 }
2803 } else {
2804 ptrdiff_t index = _root_refs_stack->find(p);
2805 if (index != -1) {
2806 int l = _root_refs_stack->length();
2807 if (l > 0 && l - 1 != index) {
2808 void* last = _root_refs_stack->pop();
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