From: Rich Felker <dalias@libc.org>
To: Jan Kratochvil <jan.kratochvil@redhat.com>
Cc: Carlos O'Donell <carlos@redhat.com>,
libc-alpha@sourceware.org, gdb-patches@sourceware.org
Subject: Re: [libc patch] __tls_get_addr with link_map * instead of modid
Date: Sat, 25 Oct 2014 06:26:00 -0000 [thread overview]
Message-ID: <20141025062632.GK22465@brightrain.aerifal.cx> (raw)
In-Reply-To: <20141025061400.GA32108@host2.jankratochvil.net>
On Sat, Oct 25, 2014 at 08:14:00AM +0200, Jan Kratochvil wrote:
> On Sat, 25 Oct 2014 07:55:16 +0200, Rich Felker wrote:
> > On Fri, Oct 24, 2014 at 04:40:14PM +0200, Jan Kratochvil wrote:
> > > I forgot about this possibility - that libthread_db would provide just the
> > > module ID (and not some per-thread address).
> >
> > Why not just use dl_iterate_phdr to get the module id?
>
> I do not see where to find l_tls_modid in the returned data structures.
>
> dl_iterate_phdr is in libc.so.6 (and not libdl.so.2) so that would be OK.
Oh, it looks like it's only available in the BSD version of on the
dl_phdr_info structure. Could we get it added to glibc? See:
http://www.freebsd.org/cgi/man.cgi?query=dl_iterate_phdr&sektion=3&apropos=0&manpath=FreeBSD%2B10.0-RELEASE
This is the version of the structure I accepted for inclusion in musl,
and I don't think I was even aware that glibc lacked these fields.
Rich
next prev parent reply other threads:[~2014-10-25 6:26 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-18 20:15 Jan Kratochvil
2014-10-18 21:20 ` Rich Felker
2014-10-18 21:27 ` Jan Kratochvil
2014-10-18 21:44 ` Rich Felker
2014-10-23 10:03 ` Alexandre Oliva
2014-10-23 12:52 ` Jan Kratochvil
2014-10-24 1:47 ` Mike Frysinger
2014-10-24 2:21 ` Carlos O'Donell
[not found] ` <20141024093834.GA24090@host2.jankratochvil.net>
2014-10-24 14:22 ` Carlos O'Donell
2014-10-24 14:40 ` Jan Kratochvil
2014-10-24 15:00 ` Carlos O'Donell
2014-10-25 5:55 ` Rich Felker
2014-10-25 6:14 ` Jan Kratochvil
2014-10-25 6:26 ` Rich Felker [this message]
2014-10-24 15:56 ` Pedro Alves
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