Re: standalone / setuptex on ARM

[Philipp Gesang <phg@phi-gamma.net>]

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···<date: 2016-08-23, Tuesday>···<from: Mojca Miklavec>···

> The Raspberry PI returns:
> 
> $ readelf -A /proc/self/exe
> Attribute Section: aeabi
> File Attributes
>   Tag_CPU_name: "6"
>   Tag_CPU_arch: v6
>   Tag_ARM_ISA_use: Yes
>   Tag_THUMB_ISA_use: Thumb-1
>   Tag_FP_arch: VFPv2
>   Tag_ABI_PCS_wchar_t: 4
>   Tag_ABI_FP_rounding: Needed
>   Tag_ABI_FP_denormal: Needed
>   Tag_ABI_FP_exceptions: Needed
>   Tag_ABI_FP_number_model: IEEE 754
>   Tag_ABI_align_needed: 8-byte
>   Tag_ABI_align_preserved: 8-byte, except leaf SP
>   Tag_ABI_enum_size: int
>   Tag_ABI_HardFP_use: SP and DP
>   Tag_ABI_VFP_args: VFP registers
>   Tag_CPU_unaligned_access: v6
> 
> and both tests fail (like they are supposed to).

Yep, I tested on one of my Π’s. ;)

>                                                  That's great, I'll
> patch the scripts, thank you very much. I was a bit frustrated by the
> inability to support both platforms properly.

> I'm now waiting for the code for the 64-bit arm binaries :)

Can’t help with that directly, I have a Π3 but it’s still running
a 32 bit distro.

> I have one in my drawer that I still need to set up.
> 
> > i'll let mojca decide that ... (i just ship what she patches in setuptex)
> 
> I'll apply the patch. Now, setuptex is not problematic, the same patch
> goes there. But mtxrun doing its own guesswork on top of this might
> be. Let's see.
> 
> And then there's the next question: what hardware/software do we need
> if we want to add an additional unit to our (new) build farm? At the
> moment Boris is kindly providing the binaries, but it would be nice to
> add some small piece of hardware into the cellar that just waits and
> starts building automatically whenever there's a need to do so.

I’ve set up a scratchbox [0] cross build env that produces usable
binaries. Maybe if I manage to get that automated I could provide
the soft-float binary. (I’ve only built Luatex so far, not sure
what else is needed.)

> Taco, Philipp just volunteered for a presentation (with workshop) at
> the ConTeXt Meeting.
> Title: Running ConTeXt (and compiling binaries) on my phone.

The hard part is displaying the PDFs. I’ll be glad to answer
questions but I doubt many would be interested on the oddities of
exotic 7 years old hardware =)

Thanks for including the patch,
Philipp

[0] This one: http://www.scratchbox.org/ -- not \box \scratchbox!


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