runqemu-internal runs "ldd qemu-system xxx" and the detection code was returning this
as the PID of qemu. This patch improves the detection code to avoid this problem,
fixing certain race type failures on the autobuilder.
(From OE-Core rev: 0c97fedc42fd9b53dc1dd40fe01f4ac142201269)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
The helper script was printing an error to stdout when it couldn't find
any qemu child processes; output this error to stderr instead and
redirect stderr to /dev/null when running from qemuimage-testlib so that
QEMUPID is actually blank if there are no qemu instances found.
(From OE-Core rev: 21edf5ec12d8307c528f157c8e078dbefe25d1ef)
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
The current code has a race since it greps for *any* qemu process
running, even if it isn't the one we started. This leads to some sanity
tests potentially failing on machines where multiple sets of sanity tests
are running.
To resovle this and some other ugly code issues, add a python script
to accurately walk the process tree and find the qemu process. We can
then replace all the shell functions attempting this which happen to
work in many cases but not all.
Also clean up some of the error handling so its more legible.
(From OE-Core rev: a62263761fc77c139d418236cc52b04bed629229)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
