Re: [PATCH 00/36] AArch64 Linux kernel port

From: Dr. David Alan Gilbert
Date: Sun Jul 08 2012 - 08:02:55 EST


* Jon Masters (jcm@xxxxxxxxxx) wrote:
> On 07/07/2012 03:27 PM, Arnd Bergmann wrote:
> > On Saturday 07 July 2012, Olof Johansson wrote:
> >
> >>> ARM introduced AArch64 as part of the ARMv8 architecture
> >>
> >> With the risk of bikeshedding here, but I find the name awkward. How
> >> about just naming the arch port arm64 instead? It's considerably more
> >> descriptive in the context of the kernel. For reference, we didn't
> >> name ppc64, nor powerpc, after what the IBM/power.org marketing people
> >> were currently calling the architecture at the time either.
> >
> > I agree the name sucks, and I'd much prefer to just call it arm64
> > as well. The main advantage of the aarch64 name is that it's the
> > same as the identifier in the elf triplet, and it makes sense to
> > keep the same name for all places where we need to identify the
> > architecture. This also includes the rpm and dpkg architecture names,
> > and the string returned by the uname syscall. If everything else
> > is aarch64, we should use that in the kernel directory too, but
> > if everyone calls it arm64 anyway, we should probably use that name
> > for as many things as possible.
>
> FWIW I actually really like the aarch64 name (but you know that already
> :) ). I think it clearly spells out that this is not just a 64-bit
> extension to the existing 32-bit ARM Architecture, it is a new (inspired
> by ARM) architecture. Implementations will also run in AArch32 state
> (A32 and T32), but it's not like x86->x86_64.

It's one advantage is that it won't trigger the infinite number
of broken scripts out there that do something on arm*

Dave
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