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Date: Thu, 22 Nov 2001 07:14:34 +1100 (EST)
From: =?iso-8859-1?q?Danny=20Smith?= <danny_r_smith_2001 AT yahoo DOT co DOT nz>
Subject: RE[2]: ld  ---export--all --exclude-libs,?
To: Cygwin-Apps <cygwin-apps AT cygwin DOT com>
In-Reply-To: <009201c17271$4cad9600$405e07d5@BRAMSCHE>
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 --- Ralf Habacker <Ralf DOT Habacker AT freenet DOT de> wrote: > > -----Original
Message-----
> > From: cygwin-apps-owner AT sourceware DOT cygnus DOT com
> > [mailto:cygwin-apps-owner AT sourceware DOT cygnus DOT com]On Behalf Of Robert
> > Collins
> > Sent: Wednesday, November 21, 2001 9:47 AM
> > To: Danny Smith; cygwin-apps; mingw-dvlpr
> > Subject: Re: ld ---export--all --exclude-libs,?
> >
> >
> > IIRC the reason the auto-export feature didn't automatically prevent
> > forwarded exports was we didn't know how. I had a quick look at doing
> > that when I tweaked Paul's work to also exlude the cygwin common
> > symbols.
> >
> > If you've found how to detect forward exports coming from other
> > libraries, then _please_ make excluding those the default. In fact IMO
> > such symbols should require explicit source code decoration -say via
> the
> > .def file- to create as AFAIK there is no ELF equivalent to a forwarded
> > symbol.
> >
> Currently I'm using a patched binutils for compiling kde which exclude
> all *.a libs inm
> conjunction with libtool.
> 
> To export specific libs, I'm using the "no whole archive" options of
> libtool, which unpacks
> the archive and adds each objfile.
> Additional this is nessessary if you are using static libs in more than
> one dll.
> 
> Index: pe-dll.c
> ===================================================================
> RCS file: /cvs/src/src/ld/pe-dll.c,v
> retrieving revision 1.37
> diff -u -b -B -p -r1.37 pe-dll.c
> --- pe-dll.c    2001/10/19 14:25:51     1.37
> +++ pe-dll.c    2001/11/21 09:35:22
> @@ -231,6 +237,8 @@ static autofilter_entry_type autofilter_
>    { "libgcc.", 7 },
>    { "libstdc++.", 10 },
>    { "libmingw32.", 11 },
> +// RH: workaround to allow using static libs in multiple dlls
> +  { ".a", 2 },
>    { NULL, 0 }
>  };
> 
> Ralf
> 
> 
Yes, something like that is my preference:  exclude all libs 

 char * libname;
 if (abfd && abfd->my_archive
     && libname = lbasename (abfd->my_archive->filename))
  
/* Check if explicitly listed as an included lib. If not */

   return 0;

Danny



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