From: "H.J. Lu" <hjl.tools@gmail.com>
To: Florian Weimer <fweimer@redhat.com>
Cc: gcc@gcc.gnu.org
Subject: Re: Switching x86_64-linux-gnu to GNU2 TLS descriptors by default
Date: Wed, 13 Dec 2023 09:53:29 -0800 [thread overview]
Message-ID: <CAMe9rOrBiOBPch=JwUJw_H8h7z-YYm9SithBv+96jHsLb8rJsA@mail.gmail.com> (raw)
In-Reply-To: <871qbqp4of.fsf@oldenburg.str.redhat.com>
On Wed, Dec 13, 2023 at 6:19 AM Florian Weimer via Gcc <gcc@gcc.gnu.org> wrote:
>
> I feel like I have asked this before. Currently, GCC uses calls to
> __tls_get_addr to obtain the address of global-dynamic TLS variables.
> On other architectures with support for GNU2 TLS descriptors, those are
> used by default.
>
> Should we flip the default to GNU2 descriptors? Support has been
> available in glibc for a long, long time. Is there any other reason for
> not doing this? On the glibc side, the behavior regarding lazy
> initialization and symbol binding does not change whether the old or new
> interface is used.
>
> Thanks,
> Florian
>
It sounds good to me.
Thanks.
--
H.J.
next prev parent reply other threads:[~2023-12-13 17:54 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-13 14:17 Florian Weimer
2023-12-13 17:53 ` H.J. Lu [this message]
2023-12-13 19:58 ` Sam James
2023-12-13 21:08 ` Andrew Pinski
2023-12-14 5:47 ` Andrew Pinski
2023-12-14 6:28 ` Sam James
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