Re: [avr-llvm-devel] Just getting started, but eager to help (subscribed to the list this time...)

[Anton S. <an...@so...>]

Hi Borja, I haven't done anything much.  I have been lurking on the
Clang and LLVM lists as well gaining insight and poking at code.  It
looks like there is a renewed effort in the abstraction of calling
convention and architecture independence from developers on both sides
of the bitcode divide.  Which would be great for backends like this
one.

But I've spent most of my open source programming time on U-Boot
actually.  I am very interested in your new AVR backend and would love
to play with it and help out.  I look forward to seeing it.  :)

Thanks,
    Anton

On Wed, Oct 12, 2011 at 4:19 PM, Borja Ferrer <bor...@gm...> wrote:
> Hello everybody, I'm sorry about the long time without any updates (around
> june), I've been very busy during these months so I've been unable to do any
> work. Did anybody advanced on something during this time?
> If i remember correctly the last thing i was working on were stack frames,
> so i'll continue the work from there. But first I'll have to update myself
> to see the changes in llvm's trunk during all this time, and then update my
> local repo to compile with their latest code, I'm guessing some work there
> because of their API changes. This will take me some days, and then back to
> coding.
>
> 2011/6/23 Anton Staaf <an...@so...>
>>>
>>> Your patches are on the right track, however please dont spend much time
>>> taking a look and working with the current backend in SVN because it's going
>>> to be completely replaced. I would recommend taking a read through previous
>>> threads in the mailing list to take a grasp of what is the current status
>>> and what are the problems we've been having and how some have been resolved,
>>> I would say bacl from October-2010 to today. Many interface changes are
>>> happening in LLVM so I doubt the backend compiles at all for the latest
>>> release.
>>
>> Yup, that's what I had gathered.  I am very much looking forward to the
>> new back-end going up.  I'd love to help out with it.
>>>
>>> As a short summary, I have a more developed backend out of SVN with a
>>> completely different design (you can read about it in older threads) that
>>> has to be uploaded. Currently, I'm working on everything related to frame
>>> stuff which is a big milestone. I have to ask something to the llvm devs
>>> because I'm stuck on something before continuing the work.
>>
>> Indeed, I was tracking your conversation about function preambles.  It
>> seems like while supporting both the IAR and GCC styles would be very useful
>> (perhaps with IAR behind a flag) it would also be considerable work.  Have
>> you decided on a stack management style?
>>>
>>> You mentioned about helping on the Clang side, that would be awesome
>>> because right now nobody is working on that, and indeed, all the address
>>> space stuff has to be resolved, so your work there would be really
>>> appreciated.
>>
>> Good to hear, I've been continuing to experiment there.
>>>
>>> PS: since mid may I'm inactive because of my finals until july so i wont
>>> be able to resume work until then, but i'll keep reading the mailing list to
>>> follow up any discussions.
>>
>> Good luck on your finals.
>> Thanks,
>>     Anton
>
>