Re: [Qemu-devel] [Consult] microblaze: About running upstream main branch qemu

[Chen Gang <gang.chen.5i5j@gmail.com>]

Hello Guenter Roeck:

I still shall try qemu and kernel distribution, next, since it can do
it successfully (whether 'sim' can be success or not).

But excuse me, maybe I can not finish microblaze qemu test within this
month, hope I can finish within next month (2014-11-30).

Thank your information about qemu, again.


Thanks.

On 10/22/2014 08:28 AM, Chen Gang wrote:
> OK, thanks, there are multiple branches in upstream qemu. Sorry
> for my original said, and I can only say: for upstream  develop
> master branch, it does not support microblaze.
> 
> Excuse me, I does not mainly focus on only using qemu, and I
> also found another easier way for test microblaze toolchain (use sim of binutils). So next, I will mainly focus on sim.
> 
> I also met some issues for sim, but I guess, I can analyze it,
> maybe also have chances to make patch for it (that is the main
> reason why I want to focus on it).
> 
> Thanks.
> 
> Send from Lenovo A788t.
> 
> 
> 
> 
> 
> Guenter Roeck <linux@roeck-us.net> wrote:
> 
> 
> 
> On Tue, Oct 21, 2014 at 06:41:14PM +0800, Chen Gang wrote:
>> On 10/21/14 12:37, Guenter Roeck wrote:
>>> On 10/20/2014 08:23 AM, Chen Gang wrote:
>>>> On 10/19/2014 10:58 PM, Guenter Roeck wrote:
>>>>>
>>>>> This doesn't use devicetree, but the configurations are known to be working
>>>>> with kernel releases all the way back to kernel version 3.10.
>>>>>
>>>>
>>>> Yeah, really it is !
>>>>
>>>> After try upstream qemu and upstream kernel, for me, neither them can
>>>> work well. For xilinx qemu with xilinux kernel, it should be well,
>>>> although I still met issue below, is what I have done incorrect?
>>>>
>>>
>>> Difficult to say.
>>>
>>> I use gcc 4.8.0 from kernel.org and qemu 2.1.2 with its default configuration
>>> for the microblaze big endian target. No idea if that makes a difference,
>>> but I would suggest to start with those.
>>>
>>> For microblazeel I use gcc 4.9.1 built with buildroot 2014.08 for both
>>> kernel and initramfs. Initramfs for that target is built from busybox.
>>>
>>
>> OK, thank you very much for your information.
>>
>> But sorry, I have to stop trying, because that is far from upstream qemu
>> and upstream kernel (at present, I have no enough time resource on it).
>>
>> My original goal is "use upstream microblaze qemu to test upstream gcc,
>> binutils and glibc of microblaze". And now I find another ways: "use sim
>> which is in upstream binutils to perform the related test".
>>
> You lost me. qemu 2.1.2 is the upstream qemu, and I do use upstream binutils
> (2.24 if I recall corectly) as well as upstream gcc and upstream kernel.
> Did I indicate otherwise in anything I said ? FWIW, should be able to use
> qemu from distributions without recompiling it.
> 
> Thanks,
> Guenter
> 


-- 
Chen Gang

Open share and attitude like air water and life which God blessed