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From: Florian Weimer <fweimer@redhat.com>
To: Dmitry Vyukov <dvyukov@google.com>
Cc: Dmitry Vyukov via Gcc <gcc@gcc.gnu.org>,  ro@gcc.gnu.org,  Jakub Jelinek
 <jakub@redhat.com>,  Martin =?utf-8?Q?Li=C5=A1ka?= <marxin@gcc.gnu.org>,
 Marco Elver <elver@google.com>, Fangrui Song <maskray@google.com>
Subject: Re: New ThreadSanitizer runtime (v3)
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Date: Tue, 23 Nov 2021 17:16:29 +0100
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 (Dmitry Vyukov's message of "Tue, 23 Nov 2021 16:37:38 +0100")
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* Dmitry Vyukov:

> On Tue, 23 Nov 2021 at 14:59, Florian Weimer <fweimer@redhat.com> wrote:
>>
>> * Dmitry Vyukov:
>>
>> > Or what kind of integration do you mean? Tsan did not have any direct
>> > integration and worked with unmodified glibc.
>>
>> I thought there is a false-positive data race report if an initial-exec
>> or local-exec TLS variable is reused (whose memory is not managed by
>> malloc).
>
> I don't remember any such open issues.

This glibc patch submission mentions tsan:

  [PATCH] elf: Add __libc_get_static_tls_bounds [BZ #16291]
  <https://sourceware.org/pipermail/libc-alpha/2021-September/131388.html>

It's currently stalled (adding an interface for something that may stop
working in the future is problematic).

Thanks,
Florian