[U-Boot] Python subprocess module missing in multiconfig.py

[Jeroen Hofstee <dasuboot@myspectrum.nl>]

Hello Tom,

On 07-08-14 21:43, Tom Rini wrote:
> On Thu, Aug 07, 2014 at 09:37:22PM +0200, Jeroen Hofstee wrote:
>> Hello Tom,
>>
>> On 07-08-14 21:08, Tom Rini wrote:
>>> On Thu, Aug 07, 2014 at 12:11:41PM -0400, david at plentovichdesign.com wrote:
>>>
>>>> Hello.  I read the posts a couple days ago about the Python issues with
>>>> Kconfig feature.  I didn't see a resolution on how this would be fixed.  I
>>>> am running Ubuntu 14.04LTS, building u-boot and the problem I have is that
>>>> the eldk tools have a older python (2.7.3) which does not have the
>>>> subprocess module but the current Ubuntu python (2.7.6) does include the
>>>> subprocess module.  When I add the eldk (cross compiler) path before my
>>>> env $PATH the defconfig fails in multiconfig.py (uses the python in the
>>>> eldk toolkit).  Can I just remove python from the eldk tools (so the newer
>>>> python will be used) or is that older python version required for some
>>>> other script in the cross compiler?
>>>>
>>>> pdavid at david-TECRA-A8:~$ python
>>>> Python 2.7.6 (default, Mar 22 2014, 22:59:38)
>>>> [GCC 4.8.2] on linux2
>>>> Type "help", "copyright", "credits" or "license" for more information.
>>>>>>> import subprocess
>>>>>>>
>>>> [1]+  Stopped                 python
>>>> david at david-TECRA-A8:~$ export
>>>> PATH=/opt/eldk-5.5/armv5te/sysroots/i686-eldk-linux/usr/bin:/opt/eldk-5.5/armv5te/sysroots/i686-eldk-linux/usr/bin/armv5te-linux-gnueabi:/opt/eldk-5.5/armv5te/sysroots/i686-eldk-linux/usr/sbin:/opt/eldk-5.5/armv5te/sysroots/i686-eldk-linux/usr/sbin/armv5te-linux-gnueabi:$PATH
>>> You only need
>>> /opt/eldk-5.5/armv5te/sysroots/i686-eldk-linux/usr/bin/armv5te-linux-gnueabi
>>> to be added to your PATH to compile U-Boot (or the kernel).  I don't
>>> know why OpenEmbedded-based SDKs default to such a stripped down Python2
>>> installation.
>> Because it is unneeded bloat? Adding a DEPENDS to the U-boot recipe
>> for python-subprocess and python-xyz and rebuilding the sdk should fix this
>> I guess.
> Putting on my OE-guy hat, if we're shipping a host python for some good
> reason, it should be as useful as a stock python install on
> desktop-or-server-distro-du-jour.  I did some quick poking when I first
> hit this and it seems the OE one ships with almost nothing for external
> modules which made me question why it's even shipped.
>
Well putting on my small, tiny OE user head, you need to spell out
every python-module you use. To make it a bit more funny there are
likely grouped, so don't be surprised this is python-system or something.
I am in the impression the nativesdk uses the same recipes where
possible, so hence needs to be rebuild with explicit DEPENDS (unless
you got luckily that a recipe before u-boot included it.) Anyway there
are a lot more people on the list who know this a lot better, Marex?

Regards,
Jeroen