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Re: [RFC v2 08/20] sysdeps/wait: Use waitid if avaliable
On Jun 26 2019, Florian Weimer <fweimer@redhat.com> wrote:
> * Arnd Bergmann:
>
> [Exposing futex as __NR_futex for 64-bit-only-time_t]
>
>> Is there any long-term advantage for your approach that I'm
>> missing?
>
> Userspace that calls futex and does not care about timeouts would just
> work on RV32 without any porting.
Calling syscalls directly is always going to be hard to keep up-to-date,
has been fallen apart a lot already.
> But this would still break if people actually go ahead with the removal
> of the 32-bit system calls (something I think is quite impossible to do,
> but some people seem to disagree).
I'd expect that the current futex syscall will continue to work for all
its subfunctions without absolute timestamp.
Andreas.
--
Andreas Schwab, SUSE Labs, schwab@suse.de
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