locore.S and debugging initial stages of kernel

[Stepan Dyatkovskiy]

Thank you guys!
Currently I have to stop my kernel survey.
Though I've managed to updated cross-binutils and compile (and then launch) kernel with -mcpu=cortex-a9 option.
Where I can read rules about, how to prepare and send patch to freebsd-arm community, so could share my experience?

Thanks!
-Stepan


21.06.2014, 03:57, "Ian Lepore" <ian at FreeBSD.org>:
> On Sat, 2014-06-21 at 01:18 +0300, Aleksandr Rybalko wrote:
>>  On 20 червня 2014 р. 08:23:01 GMT+03:00, Rui Paulo <rpaulo at FreeBSD.org> wrote:
>>> On Jun 19, 2014, at 19:19, Ian Lepore <ian at FreeBSD.org> wrote:
>>>>  I usually emit single chars by writing directly the console uart
>>>>  register.
>>> I use exactly the same method, but your code looks much better. :-)
>>>
>>> --
>>> Rui Paulo
>>>
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>>  Is not it would be better to just load txd address, instead of ORing 2-4 times? :-D
>>  WBW
>>  ------
>>  Aleksandr Rybalko <ray at ddteam.net>
>
> You mean store the value in memory somewhere, and then at runtime load a
> pointer to where it's stored using only pc-relative instructions and
> then loading the actual value using the pointer?  Harder to write, the
> code added for "quick debugging" would be more scattered, and it's
> actually slower (not that performance really matters here).  It could be
> done as a 1-liner using "=VALUE" syntax, but chances are that turns into
> mov,orr,orr. :)
>
> -- Ian
>
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