AccessController speedup

[Andrew Haley]

Scott Gilbertson writes:
 > 
 > The only problem I've seen so far is that exception stack dumps don't work
 > (static or dynamic).  I'm guessing that's because it needs TLS, which I
 > think is problematic on my old glibc.  Does that sound right?

That certainly sounds possible.  Strictly speaking, TLS shouldn't be
required, but we don't test without it.  A lot of interfaces in libgcj
really require unwinding to work.  I'd debug to find out where the
problem lies.

Andrew.