Add read barriers for the class and the intern tables.
Add read barriers for the strong roots in the intern table and the
(strong) roots in the class table to make possible concurrent scanning
of them.
Bug: 12687968
Change-Id: If6edc33a37e65a8494e66dc3b144138b1530367f
diff --git a/runtime/class_linker.h b/runtime/class_linker.h
index a1d7bc6..6d96aa2 100644
--- a/runtime/class_linker.h
+++ b/runtime/class_linker.h
@@ -573,6 +573,8 @@
// mirror::Class* instances. Results should be compared for a matching
// Class::descriptor_ and Class::class_loader_.
typedef std::multimap<size_t, mirror::Class*> Table;
+ // This contains strong roots. To enable concurrent root scanning of
+ // the class table, be careful to use a read barrier when accessing this.
Table class_table_ GUARDED_BY(Locks::classlinker_classes_lock_);
std::vector<std::pair<size_t, mirror::Class*>> new_class_roots_;