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path: root/include/sys/membarrier.h
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2019-02-22add membarrier syscall wrapper, refactor dynamic tls install to use itRich Felker-0/+17
the motivation for this change is twofold. first, it gets the fallback logic out of the dynamic linker, improving code readability and organization. second, it provides application code that wants to use the membarrier syscall, which depends on preregistration of intent before the process becomes multithreaded unless unbounded latency is acceptable, with a symbol that, when linked, ensures that this registration happens.