Re: [PATCH] Fix linking with -findirect-dispatch

Jakub Jelinek <[email protected]> Tue, 16 Apr 2013 11:48:52 +0200

Newsgroups	gmane.comp.gcc.java.patches,gmane.comp.gcc.patches
Message-ID	<[email protected]>

On Tue, Apr 16, 2013 at 11:37:07AM +0200, Andreas Schwab wrote:
> Jakub Jelinek <[email protected]> writes:
> 
> > at dynamic link time it is a dummy library with no symbols that just
> > adds DT_NEEDED of the latest and greatest libgcj.so.N, which provides
> > all the symbols.
> 
> Which is exactly the problem.  --no-copy-dt-needed-entries has been the
> default for a long time now.

Why would that be a problem?  libgcj.so the linker sees (i.e. the dummy
library) doesn't intentionally have DT_NEEDED libgcj.so.N, programs and
shared libraries linked with -findirect-dispatch should be adding
libgcj_bc.so to DT_NEEDED, not libgcj.so.N.

If this is caused by some recent broken linker change, then that should be
better reverted.

	Jakub