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Date: Tue, 20 Jan 2009 00:21:00 -0000
Message-ID: <daef60380901191621v4b9c5450k4518c8eb8804a694@mail.gmail.com>
Subject: Re: gdb doesn't show all threads, but gdbserver does
From: teawater <teawater@gmail.com>
To: "N. van Bolhuis" <nvbolhuis@aimvalley.nl>
Cc: gdb@sourceware.org
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Both gdbserver and gdb use libthread_db.

gdbserver link together with the lib.
gdb dlopen the lib when it need it.

So I think maybe gdb didn't find the lib or something else. Do you gdb
have some error message?

On Tue, Jan 20, 2009 at 05:09, N. van Bolhuis <nvbolhuis@aimvalley.nl> wrote:
>
> I built a gdb (v6.8) for powerpc to be executed on powerpc target
> (This GDB was configured as "powerpc-e300c3-linux"...).
> If I use this target gdb to debug my powerpc program and hit a
> breakpoint "info threads" shows only one thread.
> This is incorrect since there are 7 threads (cat /proc/<pid>/status
> shows 7 threads).
>
> If I debug the same program using gdbserver on target and gdb on a host=i686 (This GDB was configured as "--host=i686-linux
> --target=powerpc-e300c3-linux"...) "info threads" shows the expected 7
> threads.
>
> How can this be ?
>
> (I noticed the target gdbserver needs libthread_db.so.1, the target gdb
>  does not. Maybe this is what's causing this).
>
>
>