Re: [BC] Link libs with -Bsymbolic

[Andrew Haley <aph at redhat dot com>]

Andrew Pinski writes:
 > 
 > On Nov 15, 2004, at 9:20 AM, Andrew Haley wrote:
 > 
 > > If you have multiple versions of the same class loaded in separate
 > > shared objects, Bad Things happen with symbol resolution due to shared
 > > library loader rules.
 > >
 > > -Bsymbolic causes the linker to resolve as many symbols as possible at
 > > link time, so references from a class to its indirection table (for
 > > example) are not resolved to a separate shared object.  This has the
 > > additional advantage of making loading faster.
 > >
 > > We can't make all these symbols private because CNI programs need
 > > access to them, at least for the time being.
 > >
 > >
 > > However, some issues:
 > >
 > > Is this possible on non-GNU operating systems?
 > > Should we always use -Bsymbolic when making a shared lib?
 > >
 > > If the answer to ii. is "yes", we can probe for -Bsymbolic with
 > > autoconf and put it into libgcj.spec when linking: we won't need it
 > > explicitly in Makefile.am.
 > 
 > And the answer to part i on darwin is would be -single_module.

Thank you.  I suppose the easiest way to do this would be to add the
appropriate flags to configure.host.

Andrew.