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From: Rolf Eike Beer <eb@emlix.com>
To: linux-modules <linux-modules@vger.kernel.org>
Subject: Re: Static build of kmod
Date: Mon, 23 Mar 2020 09:35:33 +0100
Message-ID: <9035977.IJiM3cOGZI@devpool35> (raw)
In-Reply-To: <CAKi4VALBCxct17L9FazuHHfYN_ikim4Pj=Ko3-OY=Odn5pNu+A@mail.gmail.com>

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Am Freitag, 20. März 2020, 17:41:18 CET schrieb Lucas De Marchi:
> On Thu, Mar 19, 2020 at 7:40 AM Rolf Eike Beer <eb@emlix.com> wrote:
> > Greetings,
> > 
> > since commit b7016153ec87dba2b0f0d182cc8f1e3b12f4dfaf building static kmod
> > is disabled. I would like to question that decision.
> > 
> > My use case is as follows: I build a custom BSP and would like to provide
> > statically linked host tools. That makes it easy to deploy them at any
> > location, and that these tools do not pick up random shared libraries of
> > the underlying Linux system when executed. Currently kmod is one of the
> > few packages that are not able to build in that way.
> > 
> > I understand that you may want to prevent other tools (e.g. sytemd was
> > mentioned in that commit) to link against a static libkmod, and that is
> > fine with me. What I would like to get is static kmod tools. For the BSP
> > host tools case I don't mind if a libkmod does not exist at all, only the
> > tools are of interest.
> > 
> > What do you think?
> 
> It's a build system limitation:
> 
> ./configure -h| grep static
>   --enable-static[=PKGS]  build static libraries [default=no]
> 
> The --enable-static switch is about building static libraries, and as
> a consequence linking the binaries statically.
> We don't want libkmod to be built statically because its symbols will
> conflict with other libraries
> as you mentioned.

Yes, for now I simply patch that check out there.

> If we had a --enable-static-tools switch that made only the tools
> static (default false), I think it would be acceptable.
> 
> And since you are going to mess with the build system, if you want to
> convert kmod to meson it would be very
> appreciated :)

If I change any build system the target is CMake.

Eike
-- 
Rolf Eike Beer, emlix GmbH, http://www.emlix.com
Fon +49 551 30664-0, Fax +49 551 30664-11
Gothaer Platz 3, 37083 Göttingen, Germany
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Geschäftsführung: Heike Jordan, Dr. Uwe Kracke – Ust-IdNr.: DE 205 198 055

emlix - smart embedded open source

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Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-19 14:31 Rolf Eike Beer
2020-03-20 16:41 ` Lucas De Marchi
2020-03-23  8:35   ` Rolf Eike Beer [this message]

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