[PATCH rtems-libbsd] rtemsbsd/syscalls: Remove pipe()

[Chris Johns]

On 23/9/21 4:29 pm, Sebastian Huber wrote:
> On 23/09/2021 07:43, chrisj at rtems.org wrote:
>> From: Chris Johns<chrisj at rtems.org>
>>
>> - This call is provided by RTEMS and that is preferred
>>
>> Closes #4518
> 
> This removes the kqueue() support for pipe().

It does but it also lets the RTEMS one get linked in and do it's work. Pipe for
libio descriptors and libmisc/redirect work nicely well before libbsd is
initialised and this is important in some applications. Especially ones that
capture the console early to implement a `dmesg` type of support.

I am happy to see a file op added for pipe however I view RTEMS as having
priority over the same call signature in libbsd if there is a clash and there is.

I have an app that crashes because of this. I have no idea why on RTEMS 5 the
RTEMS one is linked in and the same app and build system now results the libbsd
one. Having 2 is wrong.

Chris