Re: [RFA/DWARF2] Fallback unknown language to C

[Elena Zannoni <ezannoni@redhat.com>]

Daniel Jacobowitz writes:
 > On Fri, Apr 04, 2003 at 05:22:11PM -0500, Elena Zannoni wrote:
 > > Daniel Jacobowitz writes:
 > >  > On Tue, Mar 11, 2003 at 05:44:15PM -0800, Joel Brobecker wrote:
 > >  > > I am hearing the first rumors of 5.4, I think it would be nice to have
 > >  > > the following change in. It's a followup on a remark made in this
 > >  > > message:
 > >  > > 
 > >  > >     http://sources.redhat.com/ml/gdb/2003-02/msg00533.html
 > >  > > 
 > >  > > (GDB does not work very well when the language is unknown)
 > >  > > 
 > >  > > 2003-03-11  J. Brobecker  <brobecker@gnat.com>
 > >  > > 
 > >  > >         * dwarf2read.c (set_cu_language): Fall the language back to C
 > >  > >         if it is unsupported.
 > >  > > 
 > >  > > Ok to commit?
 > >  > 
 > >  > I agree with the remark, but not the method.  Does anyone see an
 > >  > advantage to the unk_* methods calling error() instead of silently
 > >  > defaulting to the C versions?  That seems more appropriate to me.
 > >  > 
 > >  > 
 > > 
 > > I don't like too much the idea of making the unk_lang functions
 > > default silently to C.  These functions, in my mind, also serve as a
 > > kind of error checking in case the language settings get screwed up
 > > during debugging.  Maybe the solution is to provide a
 > > 'partial_language' set of functions which do the bare minimum.
 > > 
 > > The thing I missed from the various postings was a real reason of why
 > > the behavior changed. I guess that for stabs we didn't detect any of
 > > these languages at all and we defaulted to C from
 > > set_initial_language().
 > 
 > Yeah, I think that's what was happening.  If you prefer Joel's method
 > I certainly don't object.
 > 

I would prefer to have the partial language support. Joel, any chance
you could be bribed into doing it? I think all it would be needed is
to create a new language vector and copy/rename some of the
c-functions into it.

elena


 > -- 
 > Daniel Jacobowitz
 > MontaVista Software                         Debian GNU/Linux Developer