Thread stack size issue related to glibc TLS bug

[Florian Weimer]

* Jiangli Zhou:

> [3] change: http://cr.openjdk.java.net/~jiangli/tls_size/webrev/
> (contributed by Jeremy Manson)

_dl_get_tls_static_info is an internal symbol (it carries a
GLIBC_PRIVATE symbol version).  Its implementation can change at any
time.  Please do not do this.

Thanks,
Florian