Re: [PATCH v7 06/18] kbuild: enable building KUnit

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On Tue, Jul 9, 2019 at 9:00 PM Masahiro Yamada
<yamada.masahiro@xxxxxxxxxxxxx> wrote:
>
> On Tue, Jul 9, 2019 at 3:34 PM Brendan Higgins
> <brendanhiggins@xxxxxxxxxx> wrote:
> >
> > KUnit is a new unit testing framework for the kernel and when used is
> > built into the kernel as a part of it. Add KUnit to the root Kconfig and
> > Makefile to allow it to be actually built.
> >
> > Signed-off-by: Brendan Higgins <brendanhiggins@xxxxxxxxxx>
> > Cc: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
> > Cc: Michal Marek <michal.lkml@xxxxxxxxxxx>
> > Reviewed-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> > Reviewed-by: Logan Gunthorpe <logang@xxxxxxxxxxxx>
> > ---
> >  Kconfig  | 2 ++
> >  Makefile | 2 +-
> >  2 files changed, 3 insertions(+), 1 deletion(-)
> >
> > diff --git a/Kconfig b/Kconfig
> > index 48a80beab6853..10428501edb78 100644
> > --- a/Kconfig
> > +++ b/Kconfig
> > @@ -30,3 +30,5 @@ source "crypto/Kconfig"
> >  source "lib/Kconfig"
> >
> >  source "lib/Kconfig.debug"
> > +
> > +source "kunit/Kconfig"
> > diff --git a/Makefile b/Makefile
> > index 3e4868a6498b2..60cf4f0813e0d 100644
> > --- a/Makefile
> > +++ b/Makefile
> > @@ -991,7 +991,7 @@ endif
> >  PHONY += prepare0
> >
> >  ifeq ($(KBUILD_EXTMOD),)
> > -core-y         += kernel/ certs/ mm/ fs/ ipc/ security/ crypto/ block/
> > +core-y         += kernel/ certs/ mm/ fs/ ipc/ security/ crypto/ block/ kunit/
> >
> >  vmlinux-dirs   := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \
> >                      $(core-y) $(core-m) $(drivers-y) $(drivers-m) \
> > --
> > 2.22.0.410.gd8fdbe21b5-goog
>
>
> This is so trivial, and do not need to get ack from me.

Oh, sorry about that.

> Just a nit.
>
>
> When CONFIG_KUNIT is disable, is there any point in descending into kunit/ ?
>
> core-$(CONFIG_KUNIT) += kunit/
>
> ... might be useful to skip kunit/ entirely.

Makes sense. I just sent out a new change that does this.

Thanks!

> If you look at the top-level Makefile, some entries are doing this:
>
>
> init-y          := init/
> drivers-y       := drivers/ sound/
> drivers-$(CONFIG_SAMPLES) += samples/
> drivers-$(CONFIG_KERNEL_HEADER_TEST) += include/
> net-y           := net/
> libs-y          := lib/
> core-y          := usr/
>
>
>
>
>
> --
> Best Regards
> Masahiro Yamada



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