Re: [PATCH v1] uml: make CONFIG_STATIC_LINK actually static

From: Richard Weinberger
Date: Sun Jan 19 2020 - 16:40:26 EST


On Wed, Dec 11, 2019 at 9:40 AM Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote:
>
> Hi Brendan,
>
> On Tue, Dec 10, 2019 at 10:21 PM Brendan Higgins
> <brendanhiggins@xxxxxxxxxx> wrote:
> > Currently, CONFIG_STATIC_LINK can be enabled with options which cannot
> > be statically linked, namely UML_NET_VECTOR, UML_NET_VDE, and
> > UML_NET_PCAP; this is because glibc tries to load NSS which does not
> > support being statically linked. So make CONFIG_STATIC_LINK depend on
> > !UML_NET_VECTOR && !UML_NET_VDE && !UML_NET_PCAP.
> >
> > Link: https://lore.kernel.org/lkml/f658f317-be54-ed75-8296-c373c2dcc697@xxxxxxxxxxxxxxxxxx/#t
> > Signed-off-by: Brendan Higgins <brendanhiggins@xxxxxxxxxx>
> > ---
> > arch/um/Kconfig | 4 ++++
> > 1 file changed, 4 insertions(+)
> >
> > diff --git a/arch/um/Kconfig b/arch/um/Kconfig
> > index 2a6d04fcb3e91..1ddc8745123f2 100644
> > --- a/arch/um/Kconfig
> > +++ b/arch/um/Kconfig
> > @@ -63,6 +63,7 @@ source "arch/$(HEADER_ARCH)/um/Kconfig"
> >
> > config STATIC_LINK
> > bool "Force a static link"
> > + depends on !UML_NET_VECTOR && !UML_NET_VDE && !UML_NET_PCAP
>
> "depends on !FORBID_STATIC_LINK"?
>
> Then all the drivers that are incompatible with static linking can just
> select FORBID_STATIC_LINK in their own Kconfig block.

Makes sense!

--
Thanks,
//richard