commit ea2e1bd713ca8295ba4fcd01e77a3ce532ea61e4
author Hiroshi Yamauchi <yamauchi@google.com> Wed Jun 18 13:47:35 2014 -0700
committer Hiroshi Yamauchi <yamauchi@google.com> Fri Jun 20 11:23:58 2014 -0700
tree d41be4b08041c5a2b1af626d8cdf6b69280723d5
parent 241fd1192dfc0f7322660343179f9fc0591ed9ff

Add more read barriers for JNI roots.

To make it possible to concurrently scan the JNI global roots (that
is, the roots visited by JavaVMExt::VisitRoots()), add read barriers
to the indirect reference table and the reference table.

Also, add read barriers to the jmethodID/jfieldID decode routines
(ScopedObjectAccessAlreadyRunnable::DecodeField/DecodeMethod) so that
we can concurrently handle (encoded) fields and methods.

Bug: 12687968
Change-Id: I3df4e4e622a572ff0ea8d44b2dc70a4d6b3ba058