[RFC v7 18/21] um: host: add utilities functions

[Octavian Purdila]

On Thu, Oct 8, 2020 at 3:52 PM Hajime Tazaki <thehajime at gmail.com> wrote:
>
>
> On Thu, 08 Oct 2020 00:10:23 +0900,
> Anton Ivanov wrote:
> >
> >
> > On 07/10/2020 16:03, Johannes Berg wrote:
> > > On Wed, 2020-10-07 at 17:02 +0200, Johannes Berg wrote:
> > >> On Wed, 2020-10-07 at 15:53 +0100, Anton Ivanov wrote:
> > >>> These are actually different on different architectures. These look
> > >>> like the x86 values.
>
> Those variables are based on tools/um/include/lkl/asm-generic/errno.h,
> which is generated from include/uapi/asm-generic/errno.h, which LKL
> kernel eats for its values.
>
> This is the part of patch 12/21.
>
> > >>> IMHO a kernel strerror() would be the right way of dealing with this
> > >>> in the long term (i understand that we cannot call the platform one,
> > >>> because it may be different from the internal Linux errors). It will
> > >>> be useful in a lot of other places.
> > >>>
> > >>> If we leave it as is, we need to make this arch specific at some
> > >>> point.
>
> So, this particular code does not contain arch specific part I
> believe.
> # Tavi, correct me if I'm wrong.
>

I think Anton was saying that we should do it properly with C99 to
avoid potential issues with changes in configuration and I agree that
is the way to go.