[commit] add some comments to testsuite/lib/gdb.exp

[Doug Evans]

On Sat, Dec 3, 2011 at 10:39 AM, Pedro Alves <pedro@codesourcery.com> wrote:
> But I do wonder whether there is still anyone making use of this.
> Can't we just zap all of the #ifdef usestubs bits?

I'll leave that to someone else.

> There are zillions of tests that don't make have usestubs support
> in their main.  It must be pretty broken?

Like I said, a bit of bitrot ...
[The usestubs way was inherently non-scalable and the bitrot will
always be inevitable.]

> All the stubs I've seen thus far that needed to do something magical,
> did it transparently, before main is reached, e.g., with extra startup
> glue, and board file magic, which IMO is the Right Way.

I think you'd be hard pressed to find someone who thought otherwise
these days ... no?
OTOH, I don't mind adding some comments to at least explain the
current code, even if the plan is to ultimately delete it.