Re:ARM and Lock-Free Programming
by zozbot234 on Tuesday December 01, 2020 @08:17AM
(#25264839)
It has a weak memory model by default, but you can opt in to TSO (like x86) as an optional extension.
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And for Arm too, you can ship stronger memory models up to SC.
There's also the RCpc extension for memory accesses w/ another memory model there.
Is RCpc still multi-copy atomic? (Which AFAIK is a guaranteed behavior of the Aarch64 memory model)