When Kconfiglib was introduced it caused a significant performance
issue. This patch uses pruning to mitigate the performance issue.
The pruning exploits the fact that before the Kconfig database is
parsed we already know what ARCH and BOARD has been selected. So in
theory we could prune away all Kconfig sources that are not related to
the current ARCH or BOARD. In practice, it is only the Kconfig sources
in zephyr/arch/$ARCH and zephyr/board/$ARCH/ that are easy to prune.
Still, that is quite a few Kconfig sources. For qemu_x86 this patch
reduced the number of parsed Kconfig source files from 632 to
272. This pruning resulted in a incremental reconfiguration (time
cmake ..) speedup of 21% (0.56s to 0.46) and a clean build speedup of
4% (Using board qemu_x86 and sample hello_world).
Furthermore, it should be easier to maintain ARCH's and BOARD's
out-of-tree since the user now has a mechanism to redirect where
Kconfig sources are found. But this has not been explored.
Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
The default boolean setting for QEMU_TARGET was incorrectly placed in
the prompt field, so it was showing up as a config option in 'make
menuconfig' when it should be hidden.
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
This will allow checking if we are building for QEMU globally, without
having to know the exact architecture and board name.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
If a deprecated board is built, a warning is presented indicating
what future release the board will be removed.
Change-Id: Ib166198d8b71303b990a30f79429f51871591a97
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Introduce an architecture sorting of boards. This is to allow for
easier maintenance going forward as the number of boards grows. It
will be easier for any scripts to know the board/arch mapping without
having to maintain an explicit list of what boards are associated with
which arch. We can also do things like have architecture maintainers
cover reviews and branches for arch/${ARCH} and boards/${ARCH} going
forward.
Change-Id: I02e0a30292b31fad58fb5dfab2682ad1c5a7d5a7
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This adds a menu to enclose all board Kconfig. So the board
configs do not appear on the top level out of context in
menuconfig. This also reflects the SoC options where these are
under menus for each architecture.
Change-Id: I76ce2bf1acf7cbd2673ceb2eac71e96cdca2ff35
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
First step for adding the new board layer. Create configurations for the
various boards we support on x86 under boards with the new Kconfig variables
defining them.
The board selection is optional, that means you will be able to run
make menuconfig
and create your own .config and select any SoC.
Change-Id: If08e88e9675d13f0f0501ef6750b9424b15f5dc8
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Sebastian Bøe