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From: Marcel Moolenaar <marcel@xcllnt.net>
To: Joel Brobecker <brobecker@gnat.com>
Cc: Andrew Cagney <cagney@gnu.org>,
	"Nathan J. Williams" <nathanw@wasabisystems.com>,
	gdb-patches@sources.redhat.com
Subject: Re: thread ptids when debugging from core file (x86-linux)
Date: Fri, 06 Aug 2004 18:08:00 -0000	[thread overview]
Message-ID: <20040806180811.GA25829@dhcp50.pn.xcllnt.net> (raw)
In-Reply-To: <20040806175818.GR1192@gnat.com>

On Fri, Aug 06, 2004 at 10:58:18AM -0700, Joel Brobecker wrote:
> > >I've always assumed that corelow.c's mapping between .reg sections and
> > >threads was intended as a minimal fallback. The module I wrote for
> > >NetBSD's threads (which I'll get into shape for the FSF tree Real Soon
> > >Now) punts that list and generates its own list of threads from the
> > >memory structures of libpthread in the core file, just as it would for
> > >a live process.
> > 
> So do you think I'll have to dig into the inferior memory for data used
> by the libpthread library to find that information? Is this something
> that would be portable across NPTL versions? Supposing we want to go
> that route, does anybody know where to find some documentation (or some
> code) that exposes the data structures, so I can try digging into them?

[not strictly Linux, but more genericly]

But how do you map register contents in the various .reg/# sections to
the right thread if there's no way to correlate .reg/# sections to light-
weight processes? Would this in fact imply that the IDs needs to match?

Or am I missing something here?

-- 
 Marcel Moolenaar	  USPA: A-39004		 marcel@xcllnt.net


  reply	other threads:[~2004-08-06 18:08 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-08-06  4:10 Joel Brobecker
2004-08-06  4:40 ` Nathan J. Williams
2004-08-06  5:39   ` Andrew Cagney
2004-08-06 17:58     ` Joel Brobecker
2004-08-06 18:08       ` Marcel Moolenaar [this message]
2004-08-06 18:35         ` Joel Brobecker
2004-08-06 19:10         ` Nathan J. Williams
2004-08-06 20:53           ` Marcel Moolenaar
2004-08-06 19:18       ` Andrew Cagney

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