Re: Fix stack backtraces on 26-bit ARM

[Fernando Nasser <fnasser@redhat.com>]

I understood from BenH response and from a private conversation with
Andrew that it was OK to check this in, so I did it (although this is
a little borderline w.r.t. maintainership -- see below).

Note that this is rather a new target (although an ARM one) so we would 
need a maintainer for it.  You can see that it is basically new files
and I don't have a NetBSR ARM machine around here (nor does Scott, I guess).

I believe we would need to add the following to gdb/MAINTAINERS until
this is decided:

Index: MAINTAINERS
===================================================================
RCS file: /cvs/src/src/gdb/MAINTAINERS,v
retrieving revision 1.133
diff -c -p -r1.133 MAINTAINERS
*** MAINTAINERS	2001/12/15 17:09:04	1.133
--- MAINTAINERS	2001/12/17 16:30:31
*************** hurd native		Mark Kettenis		kettenis@gnu
*** 207,212 ****
--- 207,213 ----
  NetBSD native & host	J.T. Conklin		jtc@redback.com
  SCO/Unixware		Robert Lipe		rjl@sco.com
  GNU/Linux ARM native	Scott Bambrough		scottb@netwinder.org
+ NetBSD ARM native	(vacant)
  Solaris/x86 native & host (devolved)
  			Peter Schauer		Peter.Schauer@regent.e-technik.tu-muenchen.de
  Solaris/SPARC native & host (devolved)
                                                                               





Andrew Cagney wrote:
> 
> >> Hmm, I have the bones of a completely clean NetBSD/arm port.  It isn't
> >> complete, but it was written without reference to the existing NetBSD code.
> >>
> >
> >
> > Ok, attached is most of the code.  There's one more patch, which I'll send
> > separately, that allows ARM targets to be single-stepped when there is no
> > kernel/hw support for single stepping.
> >
> > R.
> >
> > <date> Richard Earnshaw <rearnsha@arm.com>
> >
> > * config/arm/nbsd.mh config/arm/nbsd.mt config/arm/tm-nbsd.h
> >       config/arm/nm-nbsd.h config/arm/xm-nbsd.h: New files.
> >       * armbsd-nat.c: New file.
> >       * Makefile.in: Build it.
> >       * configure.host configure.tgt: Support NetBSD/arm.
> 
> (There has been some out of band assignment e-mail which has left me
> pretty confused :-)
> 
> Lets see.
> 
> RichardE, the above was developed while you were at ARM and is hence
> covered, solely, by an ARM assignment? [yes | no]
> 
> If this is true, can I suggest to the Arm maintainers that this be
> considered.  Then BenH can apply fixes to it (always easier and less
> likely to have assignment problems) then new code.  (I understand, third
> hand this is kind of BenH's plan already).
> 
> I think this is preferable as it gives GDB's NetBSD/ARM support a clear
> and auditable paper trail.
> 
> enjoy,
> Andrew

-- 
Fernando Nasser
Red Hat - Toronto                       E-Mail:  fnasser@redhat.com
2323 Yonge Street, Suite #300
Toronto, Ontario   M4P 2C9