On Tue, 16 Apr 2019 09:50:16 -0600 shuah shuah@kernel.org wrote:
+Build and run from KBUILD_OUTPUT directory (make KBUILD_OUTPUT=)::
- $ make KBUILD_OUTPUT=/tmp/kselftest kselftest
- $ export KBUILD_OUTPUT=/tmp/kselftest; make kselftest
Is there a particular reason why this variable needs to be set in the environment rather than just in make? More importantly, though, I don't think this would work if you run it from the KBUILD_OUTPUT directory. What you're really doing is running with a separate output directory, right?
That is correct. I am matching the instructions in the main Makefile:
# kbuild supports saving output files in a separate directory.
So my concern was right, then: this is not a way to "run from the KBUILD_OUTPUT" directory; that seems certain to confuse people. I'll apply the patch so that the commands are right, but that could maybe use some tweaking.
Thanks,
jon