ABI/architecture identification for packages

[Garrett Cooper]

On Mon, Mar 19, 2012 at 5:41 PM, Nathan Whitehorn
<nwhitehorn at freebsd.org> wrote:
> On 03/19/12 14:35, Baptiste Daroussin wrote:
>>
>> Hi all,
>>
>> In order to identify architectures I need to find a uniq id for every
>> possibilities (for pkgng)
>>
>> here is the identification I propose:
>>
>> arch-class-os-majorversion(-archi_specific_extension)
>>
>> arch can be one of the following:
>>
>> - x86 for i386 and amd64 (discussed with kib)
>> - powerpc for powerpc and powerpc64
>> - arm
>> - mips
>> - sparc
>>
>> class may be:
>> - 32 bits
>> - 64 bits
>>
>> os will always be freebsd :) (lower case)
>>
>> majorversion the freebsd major version (10 9 8)
>>
>> achi_specific_extension currently only mips and arm are concerned,
>> for arm could be:
>> el_oabi
>> eb_oabi
>> el_eabi
>> eb_eabi
>>
>
> One brief comment here: the output of uname -p (arm, armeb, etc.) is meant
> to encode the ABI completely. All platforms with the same uname -p should be
> able to execute each other's binaries. Why not just a sequence of `uname
> -p`-`uname -s`-`uname -r` (or some subset of uname -r)? That should be
> enough to completely encode compatibility information on almost any
> operating system.

    The only tricky thing is that many OSes don't agree on branding. I
don't know how far bapt and crew are willing to go to make pkgng OS
agnostic.
Thanks,
-Garrett