mailing list of musl libc
 help / color / mirror / code / Atom feed
From: Markus Wichmann <nullplan@gmx.net>
To: musl@lists.openwall.com
Cc: mesa-dev@lists.freedesktop.org
Subject: Re: [musl] Fwd: mesa | Remove USE_ELF_TLS macro (!17213)
Date: Sat, 25 Jun 2022 06:47:24 +0200	[thread overview]
Message-ID: <20220625044724.GB2408@voyager> (raw)
In-Reply-To: <CAE2XoE_k0c7VHVZampVjo6rX8pwtKnSKKj957cDhFzWVnMfW5g@mail.gmail.com>

On Sat, Jun 25, 2022 at 11:36:09AM +0800, 罗勇刚(Yonggang Luo) wrote:
> So I am confused. What's the situation about ELF-TLS support in musl?
> Is that still broken now?

musl has always supported ELF-TLS anywhere except in libc itself. That
was also never the problem. The problem was that the mesa people select
the initial-exec TLS model explicitly, even though libGL ends up being
dlopen()ed quite often, and then you should be using the general-dynamic
model instead.

According to [1], Rich proposed dropping the initial-exec attribute and
replacing it with -mtls-dialect=gnu2 eight years ago. Has that happened
yet? If so, dlopen()ing libGL with musl ought to work.

Ciao,
Markus

[1] https://gitlab.freedesktop.org/mesa/mesa/-/issues/966

  reply	other threads:[~2022-06-25  4:47 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <merge_request_66288@gitlab.freedesktop.org>
     [not found] ` <note_1441630@gitlab.freedesktop.org>
     [not found]   ` <note_1442039@gitlab.freedesktop.org>
     [not found]     ` <note_1442291@gitlab.freedesktop.org>
2022-06-25  3:36       ` 罗勇刚(Yonggang Luo)
2022-06-25  4:47         ` Markus Wichmann [this message]
2022-06-25  5:25           ` 罗勇刚(Yonggang Luo)
2022-06-25  5:51             ` Fangrui Song
2022-06-25  9:48             ` Szabolcs Nagy

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20220625044724.GB2408@voyager \
    --to=nullplan@gmx.net \
    --cc=mesa-dev@lists.freedesktop.org \
    --cc=musl@lists.openwall.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this public inbox

	https://git.vuxu.org/mirror/musl/

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).