linux-kernel - Re: [PATCH v6 12/12] kbuild: add srcdeb-pkg target

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Message-ID: <CAK7LNAQXQDy1ijtbWTj97oejT=WAh8n3=PrHHBhDeAOjM66TfA@mail.gmail.com>
Date:   Sat, 25 Feb 2023 19:14:30 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     Nicolas Schier <nicolas@...sle.eu>
Cc:     linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org,
        Ben Hutchings <ben@...adent.org.uk>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>
Subject: Re: [PATCH v6 12/12] kbuild: add srcdeb-pkg target

On Sat, Feb 25, 2023 at 7:48 AM Nicolas Schier <nicolas@...sle.eu> wrote:
>
> On Wed, Feb 15, 2023 at 10:20:34AM +0900 Masahiro Yamada wrote:
> > This new target builds only the debian source package.
> >
> > Factor similar code out to the 'build-deb-pkg' variable.
> >
> > Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
> > ---
> >
> > Changes in v6:
> >   - New patch
> >
> >  scripts/Makefile.package | 23 ++++++++++++++++++++---
> >  1 file changed, 20 insertions(+), 3 deletions(-)
> >
> > diff --git a/scripts/Makefile.package b/scripts/Makefile.package
> > index b941e6341b36..8650d9432c26 100644
> > --- a/scripts/Makefile.package
> > +++ b/scripts/Makefile.package
> > @@ -100,6 +100,9 @@ binrpm-pkg:
> >       +rpmbuild $(RPMOPTS) --define "_builddir $(objtree)" --target \
> >               $(UTS_MACHINE)-linux -bb $(objtree)/binkernel.spec
> >
> > +# deb-pkg srcdeb-pkg bindeb-pkg
> > +# ---------------------------------------------------------------------------
> > +
> >  quiet_cmd_debianize = GEN     $@
> >        cmd_debianize = $(srctree)/scripts/package/mkdebian
> >
> > @@ -117,14 +120,27 @@ debian-orig: linux.tar.gz debian
> >               cp $< ../$(orig-name); \
> >       fi
> >
> > +build-deb-pkg = \
> > +        dpkg-buildpackage \
> > +        --build=$(build-type) --no-pre-clean --unsigned-changes \
> > +        $(if $(findstring source, $(build-type)), --unsigned-source) \
> > +        $(if $(findstring binary, $(build-type)), -r$(KBUILD_PKG_ROOTCMD) -a$$(cat debian/arch)) \
> > +        $(DPKG_FLAGS)
> > +
> >  PHONY += deb-pkg
> > +deb-pkg: private build-type := source,binary
> >  deb-pkg: debian-orig
> > -     +dpkg-buildpackage -r$(KBUILD_PKG_ROOTCMD) -a$$(cat debian/arch) $(DPKG_FLAGS) \
> > -             --build=source,binary -nc -us -uc
> > +     +$(build-deb-pkg)
> > +
> > +PHONY += srcdeb-pkg
> > +srcdeb-pkg: private build-type := source
> > +srcdeb-pkg: debian-orig
> > +     +$(build-deb-pkg)
> >
> >  PHONY += bindeb-pkg
> > +bindeb-pkg: private build-type := binary
> >  bindeb-pkg: debian
> > -     +dpkg-buildpackage -r$(KBUILD_PKG_ROOTCMD) -a$$(cat debian/arch) $(DPKG_FLAGS) -b -nc -uc
> > +     +$(build-deb-pkg)
> >
> >  PHONY += intdeb-pkg
> >  intdeb-pkg:
> > @@ -225,6 +241,7 @@ help:
> >       @echo '  srcrpm-pkg          - Build only the source kernel RPM package'
> >       @echo '  binrpm-pkg          - Build only the binary kernel RPM package'
> >       @echo '  deb-pkg             - Build both source and binary deb kernel packages'
> > +     @echo '  binsrc-pkg          - Build only the source kernel deb package'
>
> typo: srcdeb-dpkg

I will fix. Thanks.


>
> With this typo fixed:
> Reviewed-by: Nicolas Schier <nicolas@...sle.eu>
>
> >       @echo '  bindeb-pkg          - Build only the binary kernel deb package'
> >       @echo '  snap-pkg            - Build only the binary kernel snap package'
> >       @echo '                        (will connect to external hosts)'
> > --
> > 2.34.1
>
> Thanks for the patch (and the whole patch set), I appreciate it!
>
> While testing, I stumbled over one thing, not really related to this patch:
>
> As tar complains about any kind of tree changes while it creates an archive,
> 'olddefconfig' and 'srcdeb-pkg' must not be build at the same time.  Is it
> sensible to add another 'mixed-build' check in top-level Makefile against all
> target depending on linux.tar.gz?
>
>     $ make olddefconfig srcdeb-pkg -j8

This is already done.

The mixture of config targets and non-config targets
are treated as mixed-build. [1]
So, Kbuild internally divides it into 'make olddefconfig -j8'
followed by 'make srcdeb-pkg -j8'.


[1] https://github.com/torvalds/linux/blob/v6.2/Makefile#L335





>     #
>     # No change to .config
>     #
>       GEN     debian
>       UPD     .tmp_filelist
>       TAR     linux.tar.gz
>     tar: .: file changed as we read it
>     make[2]: *** [scripts/Makefile.package:58: linux.tar.gz] Error 1
>     make[2]: *** Deleting file 'linux.tar.gz'
>     make[1]: *** [Makefile:1654: srcdeb-pkg] Error 2
>     make: *** [Makefile:358: __build_one_by_one] Error 2


I ran the same command, but I could not reproduce this.





>
> Kind regards,
> Nicolas



-- 
Best Regards
Masahiro Yamada