Re: Porting to IBM Risc 6000

[Olof Johansson <offe%localnet.sh@localhost>]

On Tue 08/13/2002 17:37:45, David Edelsohn wrote:
>
>>>>>> Jochen Kunz writes:
>
>>> All 64-bit PowerPC Linux
>>> distributions only use 32-bit userland.
>Jochen> I think Linux is not the best example to folow.
>Jochen> AIX does it the same way?
>Jochen> Hmmm. Have to install AIX on my B50...
>
>         Yes, all standard installed AIX applications are 32-bits.  AIX
> apps are identical on 32-bit systems and 64-bit systems.  One can
> compile and run 64-bit applications just fine, but there is no need to
> use a 64-bit app unless the app inherently needs 64-bit computation or
> addressing.

There's the minor exception in the base distribution for commands that
access /dev/kmem. These (w, vmstat, netstat, et al) will exec() a 64-bit
version if run on a 64-bit kernel.


-Olof