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Shu-yu Guo authored
This is a reland of commit ea9a1f1c Changes since revert: - Make the state field uintptr-aligned since arm64 faults on atomic accesses to non-naturally aligned addresses. Original change's description: > [shared-struct] Add Atomics.Mutex > > This CL adds a moving GC-safe, JS-exposed mutex behind the > --harmony-struct flag. It uses a ParkingLot-inspired algorithm and > each mutex manages its own waiter queue. > > For more details, please see the design doc: https://docs.google.com/document/d/1QHkmiTF770GKxtoP-VQ1eKF42MpedLUeqiQPfCqus0Y/edit?usp=sharing > > Bug: v8:12547 > Change-Id: Ic58f8750d2e14ecd573173d17d5235a136bedef9 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3595460 > Commit-Queue: Shu-yu Guo <syg@chromium.org> > Reviewed-by: Dominik Inführ <dinfuehr@chromium.org> > Reviewed-by: Adam Klein <adamk@chromium.org> > Reviewed-by: Michael Lippautz <mlippautz@chromium.org> > Cr-Commit-Position: refs/heads/main@{#80789} Bug: v8:12547 Change-Id: I776cbf6ea860dcc6cb0ac51694a9b584b53d255c Cq-Include-Trybots: luci.v8.try:v8_linux64_tsan_rel_ng Cq-Include-Trybots: luci.v8.try:v8_mac_arm64_rel_ng Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3673354Reviewed-by: Dominik Inführ <dinfuehr@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Commit-Queue: Shu-yu Guo <syg@chromium.org> Cr-Commit-Position: refs/heads/main@{#80875}
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