Re: Dynamic symbol table

On Thursday 15 July 2004 23:09, Karl Vogel wrote:
> Karl Vogel wrote:
> 
> > I noticed that a lot of the .so files have big dynamic symbol tables, as
> > if everything is exported. Wouldn't it be better to only export the
> > symbols that are really required?!
> 
> Seems like it is indeed not needed.

Yes, any module (plugins etc.) don't need to export more than their entry points, indeed.

> +kcm_arts_la_LDFLAGS  = $(all_libraries) -module -avoid-version -no-undefined -Wl,--version-script=export.ver

That's a pretty good idea. Now the nice trick would be to automate that from am_edit and unsermake,
so that we don't need to edit 400 Makefiles...

Hmm, actually the easy (but intrusive) way of doing it would be to add 
-Wl,--version-script=$(top_srcdir)/admin/export.ver
to the definition of $(KDE_PLUGIN), so that every module that uses $(KDE_PLUGIN)
automatically gets the exported-symbols reduction.
But this could break in some weird case where someone used a non-standard
name for his entry point (and didn't use K_EXPORT_COMPONENT_FACTORY of course).

Maybe it would be better to define this as $(KDE_STANDARD_PLUGIN) or something,
and search/replace in all Makefile.ams after checking that they use a standard
name for their entry point. Much more work, but safer.

-- 
David Faure, [email protected], sponsored by Trolltech to work on KDE,
Konqueror (http://www.konqueror.org), and KOffice (http://www.koffice.org).