Linking libgcj, and Java security

[Andrew Haley]

We don't link libgcj with the -Bsymbolic option: this means that we
resolve most calls within libgcj dynamically.  I suspect this also
means that it's possible for a Java program to replace any method in
libgcj.  This may be a security hole.

I don't think this is desirable, and in any case runtime relocation
wastes time and space; the performance gain using -Bsymbolic might be
well worth having.

Before I submit a patch, is there any good reason _not_ to use
-Bsymbolic?

Andrew.