Hello Jo,
I am forwarding the message to a couple mailing lists which might have
people interested on the Mono porting for ARM hard-float ABI.
2012/2/2 Jo Shields <directhex(a)apebox.org>:
> Right now, Mono is available in Debian armhf. This is a hack - what
> we're actually doing is building Mono as an armhf binary, but built to
> emit soft VFP instructions and using calling conventions and ABI for
> armel. This hack works well enough for pure cross-platform code (like
> the C# compiler) to run, but dies in a heap for anything complex.
>
> This situation is a bit on the crappy side of crap.
>
> In order for Mono on armhf not to be a waste of time, a "true" port
> needs to be completed. If I were to make a not-remotely-educated guess,
> I'd say it needs about 550 lines of changes, primarily the addition of
> code to emit the correct instructions feeling the correct registers in
> mono/mini/mini-arm.c plus a couple of tweaks to related headers.
>
> Upstream have also indicated that they're happy to provide guidance and
> pointers on how to implement this port, although they're unable to
> provide the requisite code themselves.
>
> Sadly, unless someone in the community is able to step forward and
> contribute here, it's only a matter of time before the armhf packages
> are rightfully marked RC-buggy, and 100+ packages need to be axed from
> armhf. This would make me sad.
--
Héctor Orón -.. . -... .. .- -. -.. . ...- . .-.. --- .--. . .-.
Hi folks,
Following on from the founding of the cross-distro ARM mailing list,
I'd like to propose an ARM summit at this year's Linux Plumbers
conference [1]. I'm hoping for a slot on Thursday evening, but this
remains to be confirmed at this point.
We had some lively discussion about the state of ARM Linux distros at
the Linaro Connect [2] event in Cambridge last week. It rapidly became
clear that some of the topics we discussed deserve a wider audience,
so we're suggesting a meetup at Plumbers for that bigger
discussion. The initial proposed agenda is:
* ARM hard-float
+ What is it and why does it matter?
+ How can distributions keep compatible (i.e. gcc triplet to
describe the port)?
* Adding support for ARM as an architecture to the Linux Standard
Base (LSB)
+ Does it matter?
+ What's needed?
* FHS - multi-arch coming soon, how do we proceed?
* 3D support on ARM platforms
+ Open GL vs. GLES - which is appropriate?
but I'm sure that other people will think of more issues they'd like
to discuss. :-)
If you wish to attend, please reply to the cross-distro list and let
us know to expect you. Make sure you're registered to attend Plumbers
Conf, and get your travel and accommodation organised ASAP.
[1] http://www.linuxplumbersconf.org/2011/
[2] http://connect.linaro.org/
Cheers,
--
Steve McIntyre steve.mcintyre(a)linaro.org
<http://www.linaro.org/> Linaro.org | Open source software for ARM SoCs
