linux-kernel - Re: [PATCH v2 1/1] builddeb: introduce profile excluding the dbg pkg

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Message-ID: <CAK7LNASJ2FqtRGhwYkUoi1cbqsK16jaGGLiBHWb0G_Mq3kcQdA@mail.gmail.com>
Date:   Sun, 12 Mar 2023 14:40:56 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     Bastian Germann <bage@...utronix.de>
Cc:     Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Nicolas Schier <nicolas@...sle.eu>,
        linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/1] builddeb: introduce profile excluding the dbg pkg

On Tue, Mar 7, 2023 at 7:32 AM Bastian Germann <bage@...utronix.de> wrote:
>
> Enabling CONFIG_DEBUG_INFO implies building the binary linux-image-*-dbg.
> As this increases package build time significantly, one might want to
> exclude it from being built.


Did you confirm if this patch saved the build time in any way?
If so, please provide me with the steps to test it.


>
> Add build profile pkg.$sourcename.nokerneldbg for that package
> so it can be excluded via e.g.
> `make DPKG_FLAGS="-P=pkg.linux-upstream.nokerneldbg" deb-pkg`

The correct command is:

 `make DPKG_FLAGS="-Ppkg.linux-upstream.nokerneldbg" deb-pkg`


-P<profile>                         (without '=' for the short option)
       or
--build-profiles=<profile>    (with '=' for the long option)



I will postpone this because just adding Build-Profiles does nothing.




>
> The name is the same that is used in Debian's linux package since version
> 5.17~rc4-1~exp1.
>
> Link: https://wiki.debian.org/BuildProfileSpec
> Link: https://salsa.debian.org/kernel-team/linux/-/commit/140798ec2789
> Signed-off-by: Bastian Germann <bage@...utronix.de>
> ---
>  scripts/package/mkdebian | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/scripts/package/mkdebian b/scripts/package/mkdebian
> index f74380036bb5..8a7969926e53 100755
> --- a/scripts/package/mkdebian
> +++ b/scripts/package/mkdebian
> @@ -227,6 +227,7 @@ if is_enabled CONFIG_DEBUG_INFO; then
>  cat <<EOF >> debian/control
>
>  Package: linux-image-$version-dbg
> +Build-Profiles: <!pkg.$sourcename.nokerneldbg>
>  Section: debug
>  Architecture: $debarch
>  Description: Linux kernel debugging symbols for $version
> --
> 2.39.2
>


--
Best Regards
Masahiro Yamada