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qemurunner: print out the runqemu command 

This logs the launch command that was used for runqemu while running -c
testimage.  This way, if I'd like to easily launch qemu manually in
order to debug a failed test, I know what commmand was run to create
the qemu instance.

(From OE-Core rev: 34aa20c6f323bbf7ad53beb643126e4e03634708)

Signed-off-by: bavery <brian.avery@intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
bavery 2016-09-09 09:38:54 -07:00 committed by Richard Purdie
parent d0b4ac310b
commit 92862c678f
1 changed files with 5 additions and 3 deletions
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8
meta/lib/oeqa/utils/qemurunner.py
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@ -141,6 +141,8 @@ class QemuRunner:
else:
logger.info('Not using kvm for runqemu')
launch_cmd += 'tcpserial=%s %s %s %s' % (self.serverport, self.machine, self.rootfs, self.qemuparams)
logger.info('launchcmd=%s'%(launch_cmd))
# FIXME: We pass in stdin=subprocess.PIPE here to work around stty
# blocking at the end of the runqemu script when using this within
# oe-selftest (this makes stty error out immediately). There ought
@ -149,12 +151,12 @@ class QemuRunner:
output = self.runqemu.stdout
#
# We need the preexec_fn above so that all runqemu processes can easily be killed
# We need the preexec_fn above so that all runqemu processes can easily be killed
# (by killing their process group). This presents a problem if this controlling
# process itself is killed however since those processes don't notice the death
# process itself is killed however since those processes don't notice the death
# of the parent and merrily continue on.
#
# Rather than hack runqemu to deal with this, we add something here instead.
# Rather than hack runqemu to deal with this, we add something here instead.
# Basically we fork off another process which holds an open pipe to the parent
# and also is setpgrp. If/when the pipe sees EOF from the parent dieing, it kills
# the process group. This is like pctrl's PDEATHSIG but for a process group