[Debian-ppc64-devel] Call For Help - Please support the ppc64 architecture

[Benjamin Herrenschmidt]

On Wed, 2005-03-16 at 23:59 +0100, Andreas Jochens wrote:
> On 05-Mar-17 09:46, Benjamin Herrenschmidt wrote:
> > Have we any proper way of doing multiarch setups ? The "proper" way to
> > do ppc64 is to have both archs libs and 32 bits userland for most
> > things, as ppc64 native code is slightly slower.
> 
> Detailed measurements of 32 bit vs. 64 bit code for different 
> applications have yet to be made. One of the purposes of the native 64 
> bit approach is that such comparisons will become easily possible.
> Without having native 64 bit libraries and binaries this would be just
> guesswork.

Fairly easy to do using gentoo as a reference :) The ppc64 
native port may have an "academic" interest, but as I wrote, I'd rather
concentrate on having a biarch setup for now.

> > Also make sure the compiler is biarch as the kernel build will soon
> > require this.
> 
> The compiler in the current ppc64 archive is fully biarch, i.e. it can 
> produce 64 bit and 32 bit binaries. There is also a 64 bit and a 32 bit 
> glibc version in the archive.

Good.

Ben.