This gives a warning in some situations:
File "tools/dtoc/../concurrencytest/concurrencytest.py", line 95,
in do_fork
stream = os.fdopen(c2pread, 'rb', 1)
File "/usr/lib/python3.8/os.py", line 1023, in fdopen
return io.open(fd, *args, **kwargs)
RuntimeWarning: line buffering (buffering=1) isn't supported in binary
mode, the default buffer size will be used
Fix this by dropping the line-buffer parameter.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present the tests run one after the other using a single CPU. This is
not very efficient. Bring in the concurrencytest module and run the tests
concurrently, using one process for each CPU by default. A -P option
allows this to be overridden, which is necessary for code-coverage to
function correctly.
This requires fixing a few tests which are currently not fully
independent.
At some point we might consider doing this across all pytests in U-Boot.
There is a pytest version that supports specifying the number of processes
to use, but it did not work for me.
Signed-off-by: Simon Glass <sjg@chromium.org>
