linux-kernel - Re: [PATCH] docs: kbuild: add INSTALL_DTBS

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Message-ID: <CAK7LNATgyPVNk=5mq9D_4Hg3GTesDEwB=XKDUVXdjUintwWenA@mail.gmail.com>
Date:   Sat, 14 Oct 2023 18:01:46 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     "Ricardo B. Marliere" <ricardo@...liere.net>
Cc:     Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Nicolas Schier <nicolas@...sle.eu>,
        Jonathan Corbet <corbet@....net>, linux-kbuild@...r.kernel.org,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-kernel-mentees@...ts.linuxfoundation.org
Subject: Re: [PATCH] docs: kbuild: add INSTALL_DTBS_PATH

On Thu, Oct 12, 2023 at 7:56 PM Ricardo B. Marliere
<ricardo@...liere.net> wrote:
>
> The documentation for kbuild and makefiles is missing an explanation of
> a variable important for some architectures.
>
> Signed-off-by: Ricardo B. Marliere <ricardo@...liere.net>
> ---

Applied to linux-kbuild.
Thanks.


>  Documentation/kbuild/kbuild.rst    | 6 ++++++
>  Documentation/kbuild/makefiles.rst | 7 +++++++
>  2 files changed, 13 insertions(+)
>
> diff --git a/Documentation/kbuild/kbuild.rst b/Documentation/kbuild/kbuild.rst
> index bd906407e307..9c8d1d046ea5 100644
> --- a/Documentation/kbuild/kbuild.rst
> +++ b/Documentation/kbuild/kbuild.rst
> @@ -243,6 +243,12 @@ The output directory is often set using "O=..." on the commandline.
>
>  The value can be overridden in which case the default value is ignored.
>
> +INSTALL_DTBS_PATH
> +-----------------
> +INSTALL_DTBS_PATH specifies where to install device tree blobs for
> +relocations required by build roots.  This is not defined in the
> +makefile but the argument can be passed to make if needed.
> +
>  KBUILD_ABS_SRCTREE
>  --------------------------------------------------
>  Kbuild uses a relative path to point to the tree when possible. For instance,
> diff --git a/Documentation/kbuild/makefiles.rst b/Documentation/kbuild/makefiles.rst
> index e67eb261c9b0..d88d4f0f4f89 100644
> --- a/Documentation/kbuild/makefiles.rst
> +++ b/Documentation/kbuild/makefiles.rst
> @@ -1623,6 +1623,13 @@ INSTALL_MOD_STRIP
>    INSTALL_MOD_STRIP value will be used as the option(s) to the strip
>    command.
>
> +INSTALL_DTBS_PATH
> +  This variable specifies a prefix for relocations required by build
> +  roots. It defines a place for installing the device tree blobs. Like
> +  INSTALL_MOD_PATH, it isn't defined in the Makefile, but can be passed
> +  by the user if desired. Otherwise it defaults to the kernel install
> +  path.
> +
>  Makefile language
>  =================
>
> --
> 2.42.0
>


-- 
Best Regards
Masahiro Yamada