Re: [Qemu-devel] [PATCH v3 2/2] Add Nios II semihosting support.

[Marek Vasut]

On 05/18/2018 10:19 PM, Julian Brown wrote:
> On Fri, 18 May 2018 21:52:04 +0200
> Marek Vasut <address@hidden> wrote:
> 
>> On 05/18/2018 09:23 PM, Julian Brown wrote:
>>> This patch (by Sandra Loosemore, mildly rebased) adds support for
>>> semihosting for Nios II bare-metal emulation.
>>>
>>> Signed-off-by: Julian Brown <address@hidden>
>>> Signed-off-by: Sandra Loosemore <address@hidden>  
>>
>> Is there some documentation for this stuff ? It looks interesting, but
>> how can I try it here ?
> 
> There's no documentation AFAIK apart from that the entry points are
> the same as m68k, semihosting is invoked with "break 1", and r4/r5 are
> used for passing arguments.

So, how is anyone supposed to test this if it's shrouded in mystery ?

> I'm not actually sure how you can try this
> stuff without our startup code or other infrastructure (that I'm pretty
> sure we can't divulge). Sandra, any ideas?

So what use is this code in mainline QEMU then ?

-- 
Best regards,
Marek Vasut