Not all arch has native support for __builtin_popcount() on
hardware and GCC falls back in using software only implementation.
However, with GCC 11, this is no longer included automatically
and requires linking explicitly with libgcc.a. This is not
trivial as it requires changes some linker magic and a sizable
change to most linker scripts. So opt for an easy solution
by implementing our own popcount in the test.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Kernel objects that contain embedded synchronization structures like
spinlocks can't be palced in the (cached/incoherent) stack memory on
coherence platforms like intel_adsp.
The normal fix in a test case is just to make the offending data
static, but that's painful here because SYS_BITARRAY_DEFINE declares
two objects (i.e. you can't put a "static" in front of it as with
similar macros) and it happens to be used in this case to define local
variables with collliding names, so I'd have to go in and rename
everything.
And there's little value anyway. Bitarrays are nearly-pure data
structures and extremely unlikely to show up platform-dependent
behavior.
Fixes#35242
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
This adds some tests to make sure sys_bitarray_*() are
working correctly.
Signed-off-by: Lauren Murphy <lauren.murphy@intel.com>
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
