Mercurial > hg > truffle
diff src/share/vm/gc_implementation/parallelScavenge/psMarkSweep.cpp @ 2177:3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
Summary: move symbols from permgen into C heap and reference count them
Reviewed-by: never, acorn, jmasa, stefank
| author | coleenp |
|---|---|
| date | Thu, 27 Jan 2011 16:11:27 -0800 |
| parents | 9afee0b9fc1d |
| children | 92da084fefc9 |
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--- a/src/share/vm/gc_implementation/parallelScavenge/psMarkSweep.cpp Thu Jan 27 13:42:28 2011 -0800 +++ b/src/share/vm/gc_implementation/parallelScavenge/psMarkSweep.cpp Thu Jan 27 16:11:27 2011 -0800 @@ -527,7 +527,6 @@ Management::oops_do(mark_and_push_closure()); JvmtiExport::oops_do(mark_and_push_closure()); SystemDictionary::always_strong_oops_do(mark_and_push_closure()); - vmSymbols::oops_do(mark_and_push_closure()); // Do not treat nmethods as strong roots for mark/sweep, since we can unload them. //CodeCache::scavenge_root_nmethods_do(CodeBlobToOopClosure(mark_and_push_closure())); } @@ -558,9 +557,10 @@ follow_mdo_weak_refs(); assert(_marking_stack.is_empty(), "just drained"); - // Visit symbol and interned string tables and delete unmarked oops - SymbolTable::unlink(is_alive_closure()); + // Visit interned string tables and delete unmarked oops StringTable::unlink(is_alive_closure()); + // Clean up unreferenced symbols in symbol table. + SymbolTable::unlink(); assert(_marking_stack.is_empty(), "stack should be empty by now"); } @@ -634,7 +634,6 @@ JvmtiExport::oops_do(adjust_root_pointer_closure()); // SO_AllClasses SystemDictionary::oops_do(adjust_root_pointer_closure()); - vmSymbols::oops_do(adjust_root_pointer_closure()); //CodeCache::scavenge_root_nmethods_oops_do(adjust_root_pointer_closure()); // Now adjust pointers in remaining weak roots. (All of which should @@ -643,7 +642,6 @@ JNIHandles::weak_oops_do(&always_true, adjust_root_pointer_closure()); CodeCache::oops_do(adjust_pointer_closure()); - SymbolTable::oops_do(adjust_root_pointer_closure()); StringTable::oops_do(adjust_root_pointer_closure()); ref_processor()->weak_oops_do(adjust_root_pointer_closure()); PSScavenge::reference_processor()->weak_oops_do(adjust_root_pointer_closure());