archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-09-16 00:54:38 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

Merge

Browse source
This commit is contained in:
John R Rose 2009-09-23 23:56:15 -07:00
commit 40d52710f6
99 changed files with 66717 additions and 1266 deletions
Download patch file Download diff file Expand all files Collapse all files

26
hotspot/src/share/vm/gc_implementation/shared/markSweep.cpp
View file

@ -27,6 +27,7 @@
GrowableArray<oop>* MarkSweep::_marking_stack = NULL;
GrowableArray<Klass*>* MarkSweep::_revisit_klass_stack = NULL;
GrowableArray<DataLayout*>* MarkSweep::_revisit_mdo_stack = NULL;
GrowableArray<oop>* MarkSweep::_preserved_oop_stack = NULL;
GrowableArray<markOop>* MarkSweep::_preserved_mark_stack= NULL;
@ -62,12 +63,37 @@ void MarkSweep::revisit_weak_klass_link(Klass* k) {
void MarkSweep::follow_weak_klass_links() {
// All klasses on the revisit stack are marked at this point.
// Update and follow all subklass, sibling and implementor links.
if (PrintRevisitStats) {
gclog_or_tty->print_cr("#classes in system dictionary = %d", SystemDictionary::number_of_classes());
gclog_or_tty->print_cr("Revisit klass stack length = %d", _revisit_klass_stack->length());
}
for (int i = 0; i < _revisit_klass_stack->length(); i++) {
_revisit_klass_stack->at(i)->follow_weak_klass_links(&is_alive,&keep_alive);
}
follow_stack();
}
#if ( defined(COMPILER1) || defined(COMPILER2) )
void MarkSweep::revisit_mdo(DataLayout* p) {
_revisit_mdo_stack->push(p);
}
void MarkSweep::follow_mdo_weak_refs() {
// All strongly reachable oops have been marked at this point;
// we can visit and clear any weak references from MDO's which
// we memoized during the strong marking phase.
assert(_marking_stack->is_empty(), "Marking stack should be empty");
if (PrintRevisitStats) {
gclog_or_tty->print_cr("#classes in system dictionary = %d", SystemDictionary::number_of_classes());
gclog_or_tty->print_cr("Revisit MDO stack length = %d", _revisit_mdo_stack->length());
}
for (int i = 0; i < _revisit_mdo_stack->length(); i++) {
_revisit_mdo_stack->at(i)->follow_weak_refs(&is_alive);
}
follow_stack();
}
#endif // ( COMPILER1 || COMPILER2 )
MarkSweep::FollowRootClosure MarkSweep::follow_root_closure;
CodeBlobToOopClosure MarkSweep::follow_code_root_closure(&MarkSweep::follow_root_closure, /*do_marking=*/ true);