Re: [committed] Fix gcore crashes on s390

["David S. Miller" <davem at davemloft dot net>]

From: Mark Kettenis <mark.kettenis@xs4all.nl>
Date: Sat, 6 May 2006 20:28:16 +0200 (CEST)

> > Date: Sat, 6 May 2006 11:19:04 -0400
> > From: Daniel Jacobowitz <drow@false.org>
> > 
> > On Sat, May 06, 2006 at 10:25:03AM +0200, Mark Kettenis wrote:
> > > Yes, targets are allowed to not implement the collect_regset functions
> > > if they only implement reading core dumps and don't need it for
> > > something else (like writing core dumps with gcore or fiddling with
> > > threads).  All Linux targets now fall in the second category, but some
> > > probably think they fall in the first.  So either we should:
> > > 
> > > 1. Deal gracefully with the collect_regset function pointer being
> > >    NULL.
> > > 
> > > 2. Put in a gdb_assert() to check it's not null before it's used.
> > > 
> > > I'm thinking that we should try option #2 for a while to get people to
> > > implement the functions for the other Linux targets too, just like
> > > Ulrich did for s390.
> > 
> > Oh - sorry, I didn't see this before I approved David's change.
> > I'd rather not do it this way, especially with GDB 6.5 upcoming and a
> > lot of the Linux targets getting somewhat sporadic test coverage.
> > Is that all right with you?
> 
> No problem.

I've committed my patch to check for the NULL method.

Thanks.