Re: [Qemu-devel] [RFC] Future goals for autotest and virtualization tests

[Anthony Liguori <anthony@codemonkey.ws>]

On 03/08/2012 02:17 PM, Lucas Meneghel Rodrigues wrote:
> On 03/08/2012 04:43 PM, Anthony Liguori wrote:
>> On 03/08/2012 01:34 PM, Lucas Meneghel Rodrigues wrote:
>>> On 03/08/2012 03:57 PM, Anthony Liguori wrote:
>>>> On 03/08/2012 09:19 AM, Lucas Meneghel Rodrigues wrote:
>>>>> Before I forget, I'd like to ask you about this:
>>>>>
>>>>> On 03/08/2012 10:36 AM, Anthony Liguori wrote:
>>>>>> I'm really not a fan of buildroot. Note that in order to ship
>>>>>> binaries,
>>>>>> full source needs to be provided in order to comply with the GPL. The
>>>>>> FSF at least states that referring to another website for source
>>>>>> that's
>>>>>> not under your control doesn't satisfy the requirements of the GPL.
>>>>>
>>>>> About using buildroot, what is up with it, since it is mature and
>>>>> works well?
>>>>> You mentioned than providing all the sources is harder than it looks
>>>>> like, and I
>>>>> surely think this might be the case.
>>>>
>>>> buildroot is a full blown distribution. But instead of distributing
>>>> binaries, it only distributes source code. Think of it like Gentoo--.
>>>>
>>>> It relies on third party links to fetch said source code which means
>>>> that it's not unusual
>>>
>>> By this definition, qemu test fetch source code from 3rd party
>>> repositories just
>>> as much, after all you have to fetch your linux and busybox code from
>>> somewhere,
>>> I assume.
>>
>> It uses git submodules with repositories hosted on git.qemu.org.
>
> The linux, uclibc, gcc and and busybox repositories are nowhere to be seen
> there. Also, from .gitmodules for qemu-jeos:
>
> [submodule "busybox"]
> path = busybox
> url = git://busybox.net/busybox.git
> [submodule "linux"]
> path = linux
> url = git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> [submodule "uClibc"]
> path = uClibc
> url = git://uclibc.org/uClibc.git
> [submodule "binutils"]
> path = binutils
> url = git://sources.redhat.com/git/binutils.git
> [submodule "gcc"]
> path = gcc
> url = git://gcc.gnu.org/git/gcc.git
>
> So still pretty much a lot of code outside the qemu.org realm.

Yes, because I haven't mirrored any of this yet :-)  But it's trivial to do.

>>> You change the configuration file to build your linux from git rather
>>> than the
>>> tarball, change the linux config and type 'make'. At the end, you'll
>>> have a
>>> patch that can be sent and kept in another autotest-buildroot branch,
>>> if it's
>>> proven to be useful *for other people*.
>>
>> Except you also need to update those tarballs too that you're storing in
>> git, remember.
>>
>> Herein lies the problem. You forgot and it's your proposal :-)
>
> Ok, fair enough :) But still, qemu-jeos points out to external repositories,
> just as much as buildroot. It seems to me that the whole point about FSF
> requiring the source to be under your control is no longer valid here.

There aren't qemu-jeos binaries on qemu.org.  There won't be until I mirror the 
git repos.

It's the infrastructure that matters here.  Submodules provides a nice 
infrastructure to handle all of this and minimizing the external components 
makes the whole thing much more manageable.

Regards,

Anthony Liguori

>
>