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Features #112

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Features #112

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Commits on Jan 14, 2022

  1. Support a list of search paths for Kconfig files 

    Projects such as Zephyr OS have a module system, where Kconfig files can
exist in multiple directories that are effectively merged together by the
build system. In other words, one project directory can refer to
subdir/Kconfig where subdir/ is actually in another project directory.

As an example:

   zephyr/             - main source directory
      Kconfig          - main Kconfig file

   module/ec           - module directory
      motion/          - motion subsystem
         Kconfig       - Kconfig file for motion subsystem

Wtih the above, we might have, in zephyr/Kconfig:

   source "motion/Kconfig"

and it automatically locates the file in the module/ec directory.

Add support for this, by allowing a list of search paths to be supplied to
Kconfiglib.

Signed-off-by: Simon Glass <[email protected]>
    @sjg20
    sjg20 committed Jan 14, 2022
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  2. Add an option to allow empty macros 

    When parsing Kconfig which include macros it is currently necessary to
provide a value for all macros in advance. This may not be possible in
some cases, e.g. when the caller is performing checks on the Kconfig
options but is not running a full build of the project.

Add an option to support this. This allows parsing of Zephyr Kconfig
files without specifying a particular board, etc.

Signed-off-by: Simon Glass <[email protected]>
    @sjg20
    sjg20 committed Jan 14, 2022
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