* Mathieu Desnoyers:
> Speaking of optimization, I think the rseq.c helper library
> (and eventually glibc) should define the __rseq_abi TLS
> variable with __attribute__((tls_model("initial-exec"))).
> It provides faster, and signal-safe, accesses to the TLS
> variable from libraries.
>
> The idea you were suggesting where the application could
> override the glibc symbol with its own just ends up enforcing
> an initial-exec model, but it looks like we can do this
> directly from the library.
This really depends on how the programming model turns out once
multiple libraries are involved. I think it's premature to discuss
such details.
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