tree 59a2e44c7dbe82811f56657c43d99f1111c75f26
parent 5703029de6c56c6f85b3ecbd4e2eee80e025772d
author Hiroshi Yamauchi <yamauchi@google.com> 1403731841 -0700
committer Hiroshi Yamauchi <yamauchi@google.com> 1403906959 -0700

Add read barriers to the constant roots.

This change makes it possible to concurrently scan the constant roots
(the roots visited by Runtime::VisitConstantRoots()) such as the class
of java.lang.Class by adding read barriers.

Bug: 12687968
Change-Id: If1afea471c4e1093688d2db37b7f1fc2742edeef