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From: Dmitry Vyukov <dvyukov@google.com>
Date: Tue, 23 Nov 2021 14:51:40 +0100
Message-ID: <CACT4Y+YDShJS7+NjvcUAmkUYmiL-oog3Xr3Dju_4qByQCVS0ig@mail.gmail.com>
Subject: Re: New ThreadSanitizer runtime (v3)
To: Florian Weimer <fweimer@redhat.com>
Cc: Dmitry Vyukov via Gcc <gcc@gcc.gnu.org>, ro@gcc.gnu.org,
 Jakub Jelinek <jakub@redhat.com>, 
 =?UTF-8?Q?Martin_Li=C5=A1ka?= <marxin@gcc.gnu.org>, 
 Marco Elver <elver@google.com>
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On Tue, 23 Nov 2021 at 14:49, Florian Weimer <fweimer@redhat.com> wrote:
>
> * Dmitry Vyukov via Gcc:
>
> > I wanted to give heads up regarding a significant re-design of the
> > ThreadSanitizer runtime:
> > https://reviews.llvm.org/D112603
> > Currently it's submitted:
> > https://github.com/llvm/llvm-project/commit/1784fe0532a69ead17793bced060a9bf9d232027
> > but can well be rolled back if too many buildbots fail, but should be
> > submitted again soon anyway.
> >
> > It was extensively tested and lots of bugs were fixed, but it's still
> > possible it will cause some issues just because of the size of the
> > change and OS/arch sensitivity.
>
> Have there been changes to the glibc integration?

Hi Florian,

No changes to direct glibc integration.
Or what kind of integration do you mean? Tsan did not have any direct
integration and worked with unmodified glibc.

> Does it still hard-code the size of (private) struct pthread?

I am not aware of any such hard-code.