[PATCH] build: Add "family/" prefix to BSP familiy enable

[Chris Johns]

> On 22 Jul 2021, at 6:53 pm, Sebastian Huber <sebastian.huber at embedded-brains.de> wrote:
>> On 22/07/2021 10:47, Chris Johns wrote:
>>> On 22/7/21 6:37 pm, Sebastian Huber wrote:
>>> On 22/07/2021 10:33, Chris Johns wrote:
>>>>>> and so the arch part is not
>>>>>> really needed. My concern is this type code ...
>>>>>> 
>>>>>> https://git.rtems.org/rtems_waf/tree/rtems.py#n758
>>>>>> 
>>>>>> that breaks. Is this an issue? I think a single `/` in a BSP or family is
>>>>>> cleaner.
>>>>> Why is this an issue? This BSP family stuff is local to the RTEMS build system.
>>>> Currently. It is about the symmetry of the naming and how it would look from
>>>> outside. Nothing more.
>>> You mean that maybe someone wants to build an application or library for a BSP
>>> family? I guess this is currently not supported, but you could do this with the
>>> "bsps/powerpc/motorola_powerpc" approach.
>> Yes it could happen and this is where the symmetry and the existing code
>> matters. For example with `bsps/motorola_powerpc` the code can be easily or
>> cleanly extended by looking for `bsps` as an arch and knowing that is a
>> `family`. Otherwise the error is `invalid arch/bsp` and then you need check two
>> lengths etc etc.
> 
> If you want to add this feature, then you have to update the code anyway. You have to figure out which BSPs belong to a family for example. 

Yeap. It is a detail but I am looking ahead. 

Chris