void CardTableRS::clear_into_gen_and_younger(Generation* gen) {
GenCollectedHeap* gch = GenCollectedHeap::heap();
// Gen and all younger have been evacuated. We can clear
// remembered set entries for the next highest generation
// (we know that it has no pointers to younger gens) and
// those below.
Generation* g = gch->next_gen(gen);
while (g != NULL) {
clear(g->reserved());
g = gch->prev_gen(gen);
}
}
void CardTableRS::verify() {
// At present, we only know how to verify the card table RS for
// generational heaps.
VerifyCTGenClosure blk(this);
CollectedHeap* ch = Universe::heap();
// We will do the perm-gen portion of the card table, too.
Generation* pg = SharedHeap::heap()->perm_gen();
HeapWord* pg_boundary = pg->reserved().start();
if (ch->kind() == CollectedHeap::GenCollectedHeap) {
GenCollectedHeap::heap()->generation_iterate(&blk, false);
_ct_bs->verify();
// If the old gen collections also collect perm, then we are only
// interested in perm-to-young pointers, not perm-to-old pointers.
GenCollectedHeap* gch = GenCollectedHeap::heap();
CollectorPolicy* cp = gch->collector_policy();
if (cp->is_mark_sweep_policy() || cp->is_concurrent_mark_sweep_policy()) {
pg_boundary = gch->get_gen(1)->reserved().start();
}
}
VerifyCTSpaceClosure perm_space_blk(this, pg_boundary);
SharedHeap::heap()->perm_gen()->space_iterate(&perm_space_blk, true);
}