Re: out of tree driver builds broken with C++

[Thomas Monjalon <thomas@monjalon.net>]

14/02/2022 10:13, Tyler Retzlaff:
> while the driver api is "internal" we agreed some time ago that drivers
> could be built external to the dpdk tree. by enabling the meson setup
> option -Denable_driver_sdk=true.
> 
> it was agreed that the driver api was internal and would attract no
> binary compatibility support which was fine.  this change has now
> imposed a further restriction that out of tree drivers have to be
> authored in C only as non-C++ compatible code will invariably leak into
> the internal structures.
> 
> you won't allow us to build C++ drivers in the dpdk tree and it seems
> now you are preventing building of C++ drivers outside of the tree too.

That's the problem of non-written assumptions, they are unknown or forgotten.
Did we agree to support out-of-tree drivers in C++?

We really need to make things clear and written in documentation.

> could we please re-evaluate this.

Yes we can re-evaluate.
What is the list of impacted files?



> commit 7a335720575507f55b723b1e10bfea7daeba1386
> Author: Thomas Monjalon <thomas@monjalon.net>
> Date:   Wed Sep 15 18:46:35 2021 +0200
> 
>     lib: remove C++ include guard from private headers
> 
>     The private headers are compiled internally with a C compiler.
>     Thus extern "C" declaration is useless in such files.
> 
>     Signed-off-by: Thomas Monjalon <thomas@monjalon.net>