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From: Microbit_Ubuntu <microbit@virginbroadband.com.au>
To: buildroot@busybox.net
Subject: [Buildroot] Buildroot 2010.05-rc3 released
Date: Fri, 28 May 2010 07:55:59 +1000	[thread overview]
Message-ID: <1274997359.436.32.camel@ubuntu> (raw)
In-Reply-To: <201005272315.11295.yann.morin.1998@anciens.enib.fr>

A propos,

On Thu, 2010-05-27 at 23:15 +0200, Yann E. MORIN wrote:
> Kris, All,
> 
> On Thursday 27 May 2010 20:58:43 Microbit_Ubuntu wrote:
> [--SNIP--]
> > PS : ct-ng only offers "linuxthreads".
> 
> That's only true if you build a uClibc-based toolchain. If you build a
> glibc- or a eglibc-based toolchain, then crosstool-NG allows you to
> use NPTL.
> 
> So I'll take that you build a uClibc-based toolchain...
> 
> > So are we supposed to use 
> > "stable/old" in BR or "new" (latter, I guess) ????
> 
> That has to match the way you configured uClibc in your toolchain.
> Check the uClibc .config file for that.
> 
> > I seem to have had problems with that - invoking gdbserver prompts :
> > "can't load libthread_db.so.1".
> > This worked fine with internal toolchain... Anyone ?
> 
> libthread_db.so.1 is dlopen(3)ed by gdbserver, so you have to get it on
> your target, in the standard libraries search path.
> 
> Also, there is a known dangling issue wrt cross-gdb + gdbserver.
> See this thread:
>   http://lists.busybox.net/pipermail/buildroot/2010-May/034435.html
> 
> In short, you have to get the cross-gdb *and* the gdbserver from the
> same version of gdb, to be sure they know how to speak to each other.
> So: either get both from crosstool-NG, or get both from buildroot.
> 
> Regards,
> Yann E. MORIN.
> 




> libthread_db.so.1 is dlopen(3)ed by gdbserver, so you have to get it on
> your target, in the standard libraries search path.

When gdbserver was bleating about libthread_db.so.1, it was in the staging directory,
but it wasn't placed on the target rootfs.
When I manually added it on the target (libthread_db.so.1 I mean), gdbserver worked good as gold then...

-- Kris

  parent reply	other threads:[~2010-05-27 21:55 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-05-27 12:43 [Buildroot] Buildroot 2010.05-rc3 released Peter Korsgaard
2010-05-27 18:58 ` Microbit_Ubuntu
2010-05-27 21:15   ` Yann E. MORIN
2010-05-27 21:51     ` Microbit_Ubuntu
2010-05-27 21:55     ` Microbit_Ubuntu [this message]
2010-05-28 20:20       ` Yann E. MORIN
2010-06-01 10:21         ` Microbit_Ubuntu
2010-06-01 10:57           ` Peter Korsgaard
2010-06-01 18:25         ` Microbit_Ubuntu
2010-06-01 20:21         ` Microbit_Ubuntu
2010-06-01 20:27           ` Yann E. MORIN
2010-05-28  0:49     ` Microbit_Ubuntu
2010-05-27 21:11 ` [Buildroot] Buildroot 2010.05-rc3 released uClibc 0.9.30.1 patches missing ? Microbit_Ubuntu
2010-05-27 21:19   ` Yann E. MORIN
2010-05-27 21:32     ` Microbit_Ubuntu
2010-05-28 12:44   ` Peter Korsgaard
2010-06-01 10:38     ` Microbit_Ubuntu
2010-06-01 11:00       ` Peter Korsgaard
2010-05-28  0:37 ` [Buildroot] Buildroot 2010.05-rc3 released :: 2 build errors - lockfile-progs & gdb Microbit_Ubuntu
2010-05-30  7:35   ` Peter Korsgaard
2010-06-01 10:23     ` Microbit_Ubuntu
2010-06-01 10:56       ` Peter Korsgaard
2010-06-01 18:30     ` Microbit_Ubuntu
2010-06-15  7:10       ` Thomas Petazzoni

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