x86_64 linuxulator patches

[Adrian Penisoara]

Hi,

>> If emulating both ia32 and x86_64 simultaneously is technically feasible
>> (and I believe it is), then both should be available. i386->amd64 is
>> not the replacement step, this is an backward-compatible upgrade.
>
> I think that it not difficulty. two modules and two /compat/linux[SFX]
> but it is necesary to think well,
> and the opinion of ports maintainers is interesting.
>

 I'm working towards releasing a port for running Oracle XE w/ Linux
(x86) binaries on FreeBSD. Oracle XE has been working fine for me on
FreeBSD for quite a long time now and I'm pretty sure that the
Enterprise version does too. For the Enterprise releases there are
also (Linux) x86-64 binaries and for an Oracle DB I believe it would
make a difference.

 Also it's not unusual for a system to run multiple version (even
32bit/64bit) Oracle instances. So this would be a benefit.

Regards,
Adrian.