Re: [PATCH] gdb: Add switch to disable DWARF stack unwinders

[Andrew Burgess <andrew.burgess@embecosm.com>]

* Tom Tromey <tom@tromey.com> [2018-07-13 09:34:24 -0600]:

> >>>>> "Andrew" == Andrew Burgess <andrew.burgess@embecosm.com> writes:
> 
> Andrew> Add a maintenance command to disable the DWARF stack unwinders.
> Andrew> Normal users would not need this feature, but it is useful to allow
> Andrew> extended testing of fallback stack unwinding strategies, for example,
> Andrew> prologue scanners.
> 
> Andrew> gdb/ChangeLog:
> 
> Maybe this should mention PR 8434, since it seems like part of that idea.

   PR8434: Add maintenance command to allow arbitrary unwinders to be
           enabled or disabled.

That's interesting.  I actually started working on a patch to do just
that.  In the end I stopped working on it because I was concerned that
the change would be too big, and of too little use to justify
merging.  The smaller change I posted got me the result I needed in a
much less intrusive change.

That said, if there is a wider interest in having this ability I'm
happy to dig out my old branch and get it ready for submission, but
I'd only want to put that effort in if this was a feature people would
like to see in GDB...

Thanks,
Andrew