[OE-core] [PATCH 0/2] Python 3 runqemu fixes

[Joshua Lock]

Note: This patch is against master-next, as the Python 3 runqemu hasn't made it
to master yet.
This supercedes my earlier one patch series "Python3 runqemu: remove use of subprocess.run()" (both versions)

Two fixes for the Python3 runqemu:
* Use of subprocess.run() in recent runqemu changes (by me) elevates the Python
  3 requirement from 3.4+ to 3.5+. Replace subprocess.run() with
  subprocess.check_output(), as that is available in Python 3.1+
* testimage calls runqemu from within a bitbake run, which prevents us from 
  using `bitbake -e` to determine bitbake environment variables. The test code
  exports an OE_TMPDIR variable which was used by the shell runqemu to 
  infer/guess paths into the sysroot. This patch does the equivalent.

Changes since "Python3 runqemu: remove use of subprocess.run()" v2:
* Fix typo in exception handler log message.
* Add extra fix to support testimage

Changes since "Python3 runqemu: remove use of subprocess.run()" v1:
* Fix printing of error message in exception handler

The following changes since commit 3df3462d81216d8b26a87d9915abd9de1b2c2faa:

  bitbake: cooker: record events on cooker exit (2016-09-06 23:18:06 +0100)

are available in the git repository at:

  git://git.yoctoproject.org/poky-contrib joshuagl/runqemu
  http://git.yoctoproject.org/cgit.cgi/poky-contrib/log/?h=joshuagl/runqemu

Joshua Lock (2):
  runqemu: remove use of subprocess.run()
  runqemu: fixes for when invoked during a bitbake run

 scripts/runqemu | 37 +++++++++++++++++++++++++++----------
 1 file changed, 27 insertions(+), 10 deletions(-)

-- 
2.7.4