Disables TLS in 64 bit glibc (XCC)

Pending some decisions about how we'll do TLS.

Rebuild your cross compiler (either clean glibc, or copy over tls.h from the
-ros directory to the main glibc directory).
Fixes casting error

int -> long, when passing via a void *.
x86_64 kernel trap/interrupt handling

Worked for breakpoint and a self-ipi.
WIP