Re: Porting NetBSD to Eco32

[Yann Sionneau <yann.sionneau%gmail.com@localhost>]

Hello Jens,

Good to hear you are making progress and the kernel is finally stable :)

I also made some progress, (TLDR here is my progress :
https://www.edgebsd.org/edgebsd/wiki/14/port-lm32 ) I can now execute some
user space instructions.
I can actually execute a small statically linked /sbin/init program which
just opens /dev/console 3 times and write "hello, world!" to it, which is
displayed on UART console.

I'm pretty happy about that :)

But I would also like to start having more user space than just my small
/sbin/init ;)

I think the next step for me is porting some libc and then iterating on the
following items :

1°) ./build.sh -m milkymist -U -u release
2°) Fix what breaks
3°) goto 1°)

Until everything compiles

But I think it's quite a lot of work!

Also, I still have a bit of work in the kernel, I just fixed my spl**()
functions but I still have issues with locking. Sometimes it would not boot
very far, sometimes it would boot up to printing the hello world and
letting me type (sys_read()) to the init stdin.

Cheers!

Yann

2014-09-20 9:35 GMT+02:00 Jens Mehler <jens.mehler%mni.thm.de@localhost>:

> Hi Yann,
>
> I am still trying to port the NetBSD Userland after the Kernel finally
> got into a stable state :) (A lot of troubles with GCC has been
> resolved) O2 kernel is now possible.
>
> Did you get a hang on the Userland-port?
> We are still struggling with that one :)
>
> With best regards,
> Jens
>
> On 24.06.2014 19:04, Yann Sionneau wrote:
> > Le 24/06/14 16:33, Jens Mehler a écrit :
> >> Hi everyone !
> >>
> >> Currently a small team is porting NetBSD to a new processor called
> >> eco32. It's an educational 32bit RISC processor for which I had already
> >> ported GCC and Binutils.
> >>
> > Hi Jens,
> >
> > Pretty cool project :)
> >
> > Which implementation of Eco32 are you running your NetBSD kernel on?
> > This one: https://github.com/skristiansson/eco32f ? On which FPGA board?
> > Is it supported in Qemu ?
> > Can you post a link to your NetBSD tree?
> >
> > Looking forward to hear more about it :)
> >
> > FYI I am porting on LatticeMico32 which is also a 32 bit RISC
> >
> > Cheers!
> >
>
>


-- 
Yann Sionneau