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| author | Hiroshi Yamauchi <yamauchi@google.com> | 2014-05-21 21:10:23 -0700 |
|---|---|---|
| committer | Hiroshi Yamauchi <yamauchi@google.com> | 2014-05-21 21:19:17 -0700 |
| commit | 4cba0d979a11f955e6ec3c0f1bf61478af7aa810 (patch) | |
| tree | b3e3b61af6bd079989a1bf5259daaa8006af32d4 /compiler/optimizing/graph_visualizer.cc | |
| parent | 388c6e273018c753d7822d09d7cda0826f0c32ed (diff) | |
Add a read barrier for weak roots in monitors.
A weak root requires a read barrier for the to-space invariant to hold
because the object pointed to by a weak root can't be marked/forwarded
like the one pointed to by a strong root (GC does not know if it's
alive or not at that point) and because, without a read barrier, a
mutator could access it and obtain a from-space reference, which would
violate the to-space invariant.
TODO: do similar for the other types of weak roots.
Bug: 12687968
Change-Id: I563a0fa4f875e0c21ac96f57696959454e13b15a
Diffstat (limited to 'compiler/optimizing/graph_visualizer.cc')
0 files changed, 0 insertions, 0 deletions