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Date: Sat, 31 Oct 2020 22:46:23 -0700
From: Khem Raj <>
To:, Michael Forney <>,
 Florian Weimer <>
Subject: Re: Support SIGEV_THREAD_ID

On 10/30/20 2:22 PM, Michael Forney wrote:
> On 2019-08-01, Florian Weimer <> wrote:
>> * James Y. Knight:
>>> There seems to be some debate in glibc over whether this API should be
>>> supported, due to the long-standing debate about "pthread_t" vs
>>> "kernel tid" APIs. (And this API uses kernel tids, of course.)
>> The debate is over and has been decided in favor of supporting TIDs.  We
>> just have a backlog of interfaces for which we need to add support.
> Hi Florian,
> Am I interpreting you correctly that glibc intends to add a
> sigev_notify_thread_id define to access this field in struct sigevent?
> I plan to send a patch to qemu to use sigev_notify_thread_id over
> _sigev_un.tid if it is available, and I just want to confirm that
> glibc intends to follow suit before I mention that in the commit
> message.

we will need something similar for gperftools as well.

> Thanks

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