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ref-manual: clarify KCONFIG_MODE default behaviour

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KCONFIG_MODE defaults to 'allnoconfig' when not set, regardless of whether
KBUILD_DEFCONFIG points to an in-tree or a meta-layer defconfig.

(From yocto-docs rev: f374b9c426f6c10710e011a4ad660231ee26efb8)

Signed-off-by: Carlos Sánchez de La Lama <csanchezdll@gmail.com>
Signed-off-by: Antonin Godard <antonin.godard@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Carlos Sánchez de La Lama 2025-05-28 20:15:24 +02:00 committed by Richard Purdie
parent be420892fe
commit 7b5409b811
1 changed files with 2 additions and 9 deletions
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11
documentation/ref-manual/variables.rst
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@ -5036,15 +5036,8 @@ system and gives an overview of their function and contents.
options not explicitly specified will be disabled in the kernel options not explicitly specified will be disabled in the kernel
config. config.
In case :term:`KCONFIG_MODE` is not set the behaviour will depend on where In case :term:`KCONFIG_MODE` is not set the ``defconfig`` file
the ``defconfig`` file is coming from. An "in-tree" ``defconfig`` file will be handled in ``allnoconfig`` mode.
will be handled in ``alldefconfig`` mode, a ``defconfig`` file placed
in ``${WORKDIR}`` through a meta-layer will be handled in
``allnoconfig`` mode.
An "in-tree" ``defconfig`` file can be selected via the
:term:`KBUILD_DEFCONFIG` variable. :term:`KCONFIG_MODE` does not need to
be explicitly set.
A ``defconfig`` file compatible with ``allnoconfig`` mode can be A ``defconfig`` file compatible with ``allnoconfig`` mode can be
generated by copying the ``.config`` file from a working Linux kernel generated by copying the ``.config`` file from a working Linux kernel