Re: unable to debug remotely with threads on ppc target with gdb6.1/6.3

[Daniel Jacobowitz <drow@false.org>]

On Tue, Apr 12, 2005 at 08:52:38AM +0100, Daniel THOMPSON wrote:
> Claudia Salzberg wrote:
> >I have tried both gdb 6.1 the latest version (6.3) and am trying to debug 
> >a simple threaded program using pthreads remotely.   The target board is a 
> >440GP and the host is an x86 box.  I see references to similar problems in 
> >past posts from 12 2004 (
> >http://sourceware.org/ml/gdb/2004-12/msg00028.html) but did not see if a 
> >patch was created.
> 
> No I am not aware of any patch fixing this issue.
> 
> The problem (as the thread says) is that ps_lgetregs is not implemented 
> inside the gdbserver on PPC (or any other machine that uses 
> PEEKUSER/POKEUSER to access its register sets).
> 
> You should be able to jury rig a version by copying the code in 
> ppc-linux-nat.c:fill_gregset() into the ps_lgetregs function and 
> modifying the code to target the gdbserver register cache rather then 
> the gdb register cache.
> 
> There is, of course, a proper to way to do the above but you might want 
> to confirm the above works first ;-)

That's not Claudia's problem; the above only applies to NPTL, and she
appears to be using LinuxThreads from the error logs.

-- 
Daniel Jacobowitz
CodeSourcery, LLC