Re: 329-gary-allow-RTLD_GLOBAL

[Gary V. Vaughan]

Hallo Ralf,

On 8 Apr 2007, at 18:03, Ralf Wildenhues wrote:
> * Gary V. Vaughan wrote on Sun, Apr 08, 2007 at 12:53:01PM CEST:
> > On 8 Apr 2007, at 01:56, Bob Friesenhahn wrote:
> > > On Sun, 8 Apr 2007, Ralf Wildenhues wrote:
> > Incidentally, I'm don't know whether it would be wiser to go from  
> > 2.1a
> > to 2.2 when we do release to keep in line with our own version
> > numbering
> > scheme, or whether it will be okay to release 1.9h from HEAD and  
> > reset
> > the number to 1.9i in CVS in readiness for a 2.0 release.  Thoughts?
>
> I think we should release 2.1b next, then 2.2.  2.1a has been floating
> around a lot, and if we reset it now, then going to 2.1 again later  
> will
> be confusing.

Agreed.

> > > > Next, please be aware that as important as documentation would be
> > > > test exposure  for the functionality.
> >
> > I have no idea how to write a reliable test for this.  I can  
> > certainly
> > test that the API is available,
>
> Yes.  That's the first test that needs to be done: just simply have a
> test that calls each new function at least once.

I can do that.  If you haven't had time to review before I next work on
libtool, I'll add that to the patch and repost.

> > but since the best semantics I can
> > provide are "instead of the default symbol visibility request that  
> > the
> > underlying dlloader use global or local symbols at load time, iff  
> > that
> > is supported by the host OS and the underlying dlloader
> > implementation".
>
> I won't mind if such a test is specific to dlopen for now, or even to
> GNU/Linux.  I can write it if you like.

That would be great!  Thanks.

> > Maybe I should test for the system default, and add a test that tries
> > to change it and succeeds only if lt_dlissym{global,local} fail, or
> > the default symbol visibility is successfully overridden.  That's
> > probably more work than the patch itself though!
>
> Yuck.

Indeed.  Let's skip that then.  Phew :-)

Cheers,
        Gary
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