linux-kernel - Re: [PATCH v2] kbuild: control extra pacman packages with PACMAN

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Message-ID: <66ef2ce9-5e7d-48fd-abeb-96e463d575ad@t-8ch.de>
Date: Wed, 7 Aug 2024 19:31:29 +0200
From: Thomas Weißschuh <linux@...ssschuh.net>
To: Masahiro Yamada <masahiroy@...nel.org>
Cc: Jose Fernandez <jose.fernandez@...ux.dev>, 
	Nathan Chancellor <nathan@...nel.org>, Nicolas Schier <nicolas@...sle.eu>, 
	Christian Heusel <christian@...sel.eu>, Peter Jung <ptr1337@...hyos.org>, linux-kbuild@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] kbuild: control extra pacman packages with
 PACMAN_EXTRAPACKAGES

On 2024-08-08 02:02:59+0000, Masahiro Yamada wrote:
> On Thu, Aug 8, 2024 at 1:41 AM Thomas Weißschuh <linux@...ssschuh.net> wrote:
> > On 2024-08-07 22:37:47+0000, Masahiro Yamada wrote:
> > > On Wed, Aug 7, 2024 at 11:28 AM Jose Fernandez <jose.fernandez@...ux.dev> wrote:

<snip>

> > > Lastly, I will never accept new error messages
> > > with CONFIG_MODULES=n.
> >
> > Could you elaborate?
> > For me this works fine with CONFIG_MODULES=n.
> > (After having fixed the above issues so all subpackages are built)
> 
> $ make  allnoconfig pacman-pkg
> 
> Check the linux-headers log closely.

I see now, previously I was not on kbuild/for-next and had an old
Module.symvers sitting around, hiding the issue.

==> Starting package_linux-upstream-headers()...
Installing build files...
tar: Module.symvers: Cannot stat: No such file or directory
tar: Exiting with failure status due to previous errors
Installing System.map and config...
Adding symlink...
==> Tidying install...

(coming from scripts/package/install-extmod-build)

linux-upstream-headers also contains .config and System.map which are
useful without modules.
So either we completely disable linux-upstream-headers or skip
install-extmod-build when CONFIG_MODULES=n.
And maybe move System.map and .config to some other package,
which would then deviate from the original PKGBUILD.

Neither option feels great, but it probably won't make a big difference.
If you have a preference, let's go with that.

Thomas