From: Jan Kratochvil <jan.kratochvil@redhat.com>
To: gdb Mailing List <gdb@sources.redhat.com>
Subject: Re: pthread_t ids of threads not showed by "thread info"
Date: Thu, 22 Apr 2010 16:59:00 -0000 [thread overview]
Message-ID: <20100422165924.GA1109@host0.dyn.jankratochvil.net> (raw)
In-Reply-To: <20100422154404.GB3128@geppetto>
On Thu, 22 Apr 2010 17:44:04 +0200, Stefano Sabatini wrote:
> The difference between the first and the second scenario is that the
> first output was issued debugging a core, the second one by running a
> process through gdb run.
Yes, IIRC GDB does not use linux-thread-db.c (libthread_db) for core files.
`info threads' displays LWPs (and not real threads) in such case.
> May be possible that it is not possible to extract the pthread_t
> info from a core file?
LWPs do not have associated pthread_t.
> Can you explain why?
IIRC I tried once to add linux-thread-db.c for core files but for some reason
it was not completely trivial and I rather debugged the specific case by hand
iterating some pthread_t structures for that crash.
Regards,
Jan
next prev parent reply other threads:[~2010-04-22 16:59 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-22 15:19 Stefano Sabatini
2010-04-22 15:44 ` Stefano Sabatini
2010-04-22 16:59 ` Jan Kratochvil [this message]
2010-04-23 7:51 ` Stefano Sabatini
2010-04-23 10:25 ` Jan Kratochvil
2010-04-23 14:21 ` Stefano Sabatini
2010-04-23 14:25 ` Jan Kratochvil
2010-04-23 15:36 ` Stefano Sabatini
2010-04-23 15:46 ` Jan Kratochvil
2010-04-26 8:38 ` Stefano Sabatini
2010-04-26 9:04 ` Jan Kratochvil
2010-04-26 11:07 ` Stefano Sabatini
2010-04-26 11:25 ` Jan Kratochvil
2010-04-23 14:29 ` Stefano Sabatini
2010-04-23 11:50 ` Pedro Alves
2010-04-23 12:31 ` Mark Kettenis
2010-04-23 12:47 ` Pedro Alves
2010-04-23 15:37 ` Mark Kettenis
2010-04-23 15:51 ` Pedro Alves
2010-08-04 14:36 ` Pedro Alves
2010-08-04 14:57 ` Mark Kettenis
2010-08-04 15:29 ` Pedro Alves
2010-08-04 16:53 ` Ulrich Weigand
2010-08-04 17:14 ` Pedro Alves
2010-08-04 17:40 ` Pedro Alves
2010-08-04 17:44 ` Ulrich Weigand
2010-08-04 18:20 ` Pedro Alves
2010-08-04 18:34 ` Ulrich Weigand
2010-08-04 20:41 ` Pedro Alves
2010-08-04 17:45 ` Ulrich Weigand
2010-04-22 20:52 ` Petr Hluzín
2010-04-22 20:56 ` Daniel Jacobowitz
2010-08-18 14:17 ` Pedro Alves
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=20100422165924.GA1109@host0.dyn.jankratochvil.net \
--to=jan.kratochvil@redhat.com \
--cc=gdb@sources.redhat.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.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox