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SubjectRe: [PATCH 1/5] glibc: Perform rseq(2) registration at C startup and thread creation (v10)
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On 6/6/19 7:57 AM, Florian Weimer wrote:
> Let me ask the key question again: Does it matter if code observes the
> rseq area first without kernel support, and then with kernel support?
> If we don't expect any problems immediately, we do not need to worry
> much about the constructor ordering right now. I expect that over time,
> fixing this properly will become easier.

I just wanted to chime in and say that splitting this into:

* Ownership (__rseq_handled)

* Initialization (__rseq_abi)

Makes sense to me.

I agree we need an answer to this question of ownership but not yet
initialized, to owned and initialized.

I like the idea of having __rseq_handled in ld.so.

--
Cheers,
Carlos.

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