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Re: [RFC v2 08/20] sysdeps/wait: Use waitid if avaliable
- From: Florian Weimer <fweimer at redhat dot com>
- To: Andreas Schwab <schwab at suse dot de>
- Cc: Arnd Bergmann <arnd at arndb dot de>, Zack Weinberg <zackw at panix dot com>, Alistair Francis <alistair dot francis at wdc dot com>, GNU C Library <libc-alpha at sourceware dot org>
- Date: Mon, 08 Jul 2019 14:09:50 +0200
- Subject: Re: [RFC v2 08/20] sysdeps/wait: Use waitid if avaliable
- References: <cover.1561421042.git.alistair.francis@wdc.com> <2df9d3878359585ac1cc46243fb6664f7a50b3b3.1561421042.git.alistair.francis@wdc.com> <CAKCAbMhyUiEZcfg-BNL_sqUAFmtEWCEgoyUwMGOdB_jLbvKJ6Q@mail.gmail.com> <87ftnx6i0m.fsf@oldenburg2.str.redhat.com> <CAK8P3a39tr-qbG4X8SnM=3M6VfV+LzOvE6pVBqByN0YcPkf42w@mail.gmail.com> <877e9950hj.fsf@oldenburg2.str.redhat.com> <CAK8P3a0P1f=922peKELqanZqSY3MAdNiUK70UvZaxy75pS-2Qw@mail.gmail.com> <CAK8P3a2hj24voTemN54gBKay+cKU3vd_dr=KVacWjrO5foH3Bg@mail.gmail.com> <87a7e522wb.fsf@oldenburg2.str.redhat.com> <CAK8P3a3b32CNaXfR1w8cJuGS1H7qPTKLZc0BDxf-oW20i7aXvw@mail.gmail.com> <87r27hzrjd.fsf@oldenburg2.str.redhat.com> <CAK8P3a2HC_Ki0tf9B_A3Tm5w9zqrVLO8JG8u_ohc8aoSEY5okw@mail.gmail.com> <87ef3hzqjw.fsf@oldenburg2.str.redhat.com> <CAK8P3a2QW7WNuK0_zu44_fp3qWh7iL2V6Mae+zx+iLjUP7CitQ@mail.gmail.com> <8736jwjqkq.fsf@oldenburg2.str.redhat.com> <mvm36jwux93.fsf@suse.de>
* Andreas Schwab:
>> 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.
I thought that RV32 just wouldn't have a futex system call at all?
Thanks,
Florian