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6964458: Reimplement class meta-data storage to use native memory

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Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes

Co-authored-by: Stefan Karlsson <stefan.karlsson@oracle.com>
Co-authored-by: Mikael Gerdin <mikael.gerdin@oracle.com>
Co-authored-by: Tom Rodriguez <tom.rodriguez@oracle.com>
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
This commit is contained in:
Jon Masamitsu 2012-09-01 13:25:18 -04:00 • committed by Coleen Phillimore
parent 36eee7c8c8
commit 5c58d27aac
853 changed files with 26124 additions and 82956 deletions
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22
hotspot/src/share/vm/memory/space.cpp
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@ -178,7 +178,7 @@ void DirtyCardToOopClosure::do_MemRegion(MemRegion mr) {
}
}
DirtyCardToOopClosure* Space::new_dcto_cl(OopClosure* cl,
DirtyCardToOopClosure* Space::new_dcto_cl(ExtendedOopClosure* cl,
CardTableModRefBS::PrecisionStyle precision,
HeapWord* boundary) {
return new DirtyCardToOopClosure(this, cl, precision, boundary);
@ -253,11 +253,11 @@ void ContiguousSpaceDCTOC::walk_mem_region_with_cl(MemRegion mr, \
// (There are only two of these, rather than N, because the split is due
// only to the introduction of the FilteringClosure, a local part of the
// impl of this abstraction.)
ContiguousSpaceDCTOC__walk_mem_region_with_cl_DEFN(OopClosure)
ContiguousSpaceDCTOC__walk_mem_region_with_cl_DEFN(ExtendedOopClosure)
ContiguousSpaceDCTOC__walk_mem_region_with_cl_DEFN(FilteringClosure)
DirtyCardToOopClosure*
ContiguousSpace::new_dcto_cl(OopClosure* cl,
ContiguousSpace::new_dcto_cl(ExtendedOopClosure* cl,
CardTableModRefBS::PrecisionStyle precision,
HeapWord* boundary) {
return new ContiguousSpaceDCTOC(this, cl, precision, boundary);
@ -548,7 +548,7 @@ void ContiguousSpace::verify() const {
}
}
void Space::oop_iterate(OopClosure* blk) {
void Space::oop_iterate(ExtendedOopClosure* blk) {
ObjectToOopClosure blk2(blk);
object_iterate(&blk2);
}
@ -679,7 +679,7 @@ void ContiguousSpace::object_iterate_mem(MemRegion mr, UpwardsObjectClosure* cl)
#undef ContigSpace_PAR_OOP_ITERATE_DEFN
#endif // SERIALGC
void ContiguousSpace::oop_iterate(OopClosure* blk) {
void ContiguousSpace::oop_iterate(ExtendedOopClosure* blk) {
if (is_empty()) return;
HeapWord* obj_addr = bottom();
HeapWord* t = top();
@ -689,7 +689,7 @@ void ContiguousSpace::oop_iterate(OopClosure* blk) {
}
}
void ContiguousSpace::oop_iterate(MemRegion mr, OopClosure* blk) {
void ContiguousSpace::oop_iterate(MemRegion mr, ExtendedOopClosure* blk) {
if (is_empty()) {
return;
}
@ -1002,17 +1002,7 @@ void OffsetTableContigSpace::verify() const {
guarantee(p == top(), "end of last object must match end of space");
}
void OffsetTableContigSpace::serialize_block_offset_array_offsets(
SerializeOopClosure* soc) {
_offsets.serialize(soc);
}
size_t TenuredSpace::allowed_dead_ratio() const {
return MarkSweepDeadRatio;
}
size_t ContigPermSpace::allowed_dead_ratio() const {
return PermMarkSweepDeadRatio;
}