Java docs patch: Update libgcj system properties docuementation

[Ranjit Mathew]

Bryce McKinlay wrote:
[...]
> +Whether an external process, @command{addr2line}, should be used to determine
> +line number information when tracing the stack. Setting this to @code{false} 
> +may suppress line numbers when printing stack traces and when using
> +the java.util.logging infrastructure. However, performance may improve
> +significantly for applications that print stack traces or make logging calls
> +frequently.

I think it's high time we ditch addr2line and go
with something like Casey Marshall's DWARF-2 reader
by default, using addr2line only as a fallback
mechanism:

http://gcc.gnu.org/ml/java-patches/2005-q2/msg00002.html

(I couldn't find the original patch from CM in the
mail archives.)

IIRC, BFD was not license-compatible and elfutils
was restricted to ELF systems and is not widespread.

My 2p.
Ranjit.

-- 
Ranjit Mathew      Email: rmathew AT gmail DOT com

Bangalore, INDIA.    Web: http://ranjitmathew.hostingzero.com/