The $srctree environment variable gives the path relative to which
'(o)source' statements work (the current directory is used if $srctree
is unset). It is set to $ZEPHYR_BASE in cmake/kconfig.cmake, so there's
no need to qualify the source of Kconfig.zephyr in sample Kconfig files
(or in external projects).
All 'source's in Zephyr assume that the Zephyr root directory is used as
the srctree as well, and would break otherwise.
Remove the $(ZEPHYR_BASE)s to make it clearer that all 'source'
statements work relative to the Zephyr root. There was some user
confusion on IRC.
Also explain how things work in the documentation.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
With the new Kconfig preprocessor (described in
https://github.com/torvalds/linux/blob/master/Documentation/kbuild/
kconfig-macro-language.txt), the syntax for expanding environment
variables is $(FOO) rather than $FOO.
$(FOO) is a general preprocessor variable expansion, which falls back to
environment variables if the variable isn't set (like in Make). It can
also be used in prompts, 'comment's, etc.
The old syntax will probably be supported forever in Kconfiglib for
backwards compatibility, but might as well make it consistent now that
people might start using the preprocessor more.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
This will make adding properties to symbols in the base Zephyr Kconfig
files work the same as before.
I didn't actually spot any such cases, so this is just to play it safe.
It also makes the sample Kconfig symbols appear at the top in the
menuconfig interface, which might be nice.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
These are no longer needed since commit 4dc9e5b2de ("kconfig: Get rid
of 'option env' bounce symbols"). The C tools are likely to get rid of
them soon too.
The APPLICATION_BASE symbol (option env="PROJECT_BASE") triggered a
compatibility warning, because 'option env' symbols now need to have the
same name as the environment variables they reference to be compatible
with Kconfiglib. APPLICATION_BASE is unused, so just remove it.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
This application just enables VLAN tag for ethernet interface.
Set CONFIG_SAMPLE_VLAN_TAG option to define the desired VLAN tag.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Ulf Magnusson