The OpenEmbedded build system creates and uses this directory
for all the build system's output.
The
TMPDIR
variable points to this directory.
BitBake creates this directory if it does not exist.
As a last resort, to clean up a build and start it from scratch
(other than the downloads), you can remove everything in the
tmp
directory or get rid of the
directory completely.
If you do, you should also completely remove the
build/sstate-cache
directory.