Imanol Fernandez c3ef7be747 servo: Merge #16833 - Fix unsafe AtomicRefCell<T> transmutes in Layout component (from MortimerGoro:layout_alignment); r=SimonSapin ... <!-- Please describe your changes on the following line: --> Fixes unsafe transmute between `AtomicRefCell<PersistentLayoutData>` and `AtomicRefCell<PartialPersistentLayoutData>` which have different memory alignment in 32 bit archs leading to SEGV crashes. See https://github.com/servo/servo/issues/16817 and https://github.com/servo/servo/pull/16816 mem::align_of values in 32 bit archs (e.g. Android): ``` PersistentLayoutData 8 PersistentLayoutData 4 AtomicRefCell<PersistentLayoutData> 8 AtomicRefCell<PartialPersistentLayoutData> 4 ``` mem::align_of values in 64 bit archs ``` PersistentLayoutData 8 PersistentLayoutData 8 AtomicRefCell<PersistentLayoutData> 8 AtomicRefCell<PartialPersistentLayoutData> 8 ``` --- <!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: --> - [x] `./mach build -d` does not report any errors - [x] `./mach test-tidy` does not report any errors - [x] These changes fix #16817 (github issue number if applicable). <!-- Either: --> - [x] There are tests for these changes OR - [ ] These changes do not require tests because _____ <!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.--> <!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. --> Source-Repo: https://github.com/servo/servo Source-Revision: 47e4c48feb12e4189f11fd94631f0abea5827f91 --HG-- extra : subtree_source : https%3A//hg.mozilla.org/projects/converted-servo-linear extra : subtree_revision : 51c494d499c304cd69e5504acc1ed8399afada05		2017-05-12 20:44:02 -05:00
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Cargo.toml	servo: Merge #16815 - Bump cssparser to 0.13.3 (from Manishearth:cssup); r=metajack	2017-05-11 16:10:23 -05:00
lib.rs	servo: Merge #16833 - Fix unsafe AtomicRefCell<T> transmutes in Layout component (from MortimerGoro:layout_alignment); r=SimonSapin	2017-05-12 20:44:02 -05:00
message.rs	servo: Merge #16702 - Use a custom arc in the style system (from bholley:custom_arc); r=emilio	2017-05-02 20:01:10 -05:00
reporter.rs	servo: Merge #16495 - Make tidy check that opening and closing braces that begin a line do … (from coalman:tidy-brace-alignment); r=emilio	2017-04-19 03:06:31 -05:00
rpc.rs	servo: Merge #16531 - Eliminate ScrollRootId (from mrobinson:clip-id); r=glennw	2017-04-20 01:55:33 -05:00
wrapper_traits.rs	servo: Merge #16506 - Make non-initial about:blank loads async (from cbrewster:about_chaos); r=asajeffrey	2017-05-12 15:08:45 -05:00