[RFA] Improve performance with lots of shared libraries

[Jan Kratochvil]

On Fri, 09 Sep 2011 16:25:30 +0200, Daniel Jacobowitz wrote:
> On Fri, Sep 9, 2011 at 8:31 AM, Gary Benson <gbenson@redhat.com> wrote:
> > Â * when there are no pending breakpoints,
> 
> If you "break foo", it might put that breakpoint in more than one
> shared library.  If you load a new library with an implementation of
> foo, we should stop on that one too.  How can we make that work
> without processing the library events?

This feature was planned being aware of this problem.

It does not work currently, GDB just puts the breakpoint on a random first
place found.

The Tom's multi-location breakpoints patch (archer-tromey-ambiguous-linespec)
is being coded with this behavior so that by default gdb syntax it is defined
the first resolution is final.
	http://sourceware.org/ml/gdb-patches/2011-07/msg00740.html

I would guess this patch should be checked-in only after Tom's.  Or make it
opt-in configurable.  Or just say the already broken behavior is now broken in
a different way.


Thanks,
Jan