Building with !MULTITHREADING is designed for bootloaders and similar
minimal-functionality use cases. It's pathologically silly to combine
it with MMU drivers and address space partitioning, even though on
some architectures that technically works (on ARM, it seems not to).
The test intent was to disable this originally, but it turns out that
doesn't work. There is a TEST_USERSPACE kconfig symbol that also
needs to be explicitly turned off, otherwise it will reselect
USERSPACE against our wishes.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
Prepend the text 'cmake_minimum_required(VERSION 3.8.2)' into the
application and test build scripts.
Modern versions of CMake will spam users with a deprecation warning
when the toplevel CMakeLists.txt does not specify a CMake
version. This is documented in bug #8355.
To resolve this we include a cmake_minimum_required() line into the
toplevel build scripts. Additionally, cmake_minimum_required is
invoked from within boilerplate.cmake. The highest version will be
enforced.
This patch allows us to afterwards change CMake policy CMP000 from OLD
to NEW which in turn finally rids us of the verbose warning.
The extra boilerplate is considered more acceptable than the verbosity
of the CMP0000 policy.
Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
This is a feature Ben added so you could use Zephyr's arch layer to
bootstrap things like bootloaders without sucking in the whole kernel.
And it's worked until now.
But we never had a test for it, and I just broke it with the scheduler
rework. Add a trivial test just to make sure this continues to link
and run. Longer term it would be nice to have some kind of size
metric here to guarantee that the feature stays lean and doesn't pull
in needless code.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
