ubuntu-buildroot/support/scripts/boot-qemu-image.py

85 lines
2.4 KiB
Python
Executable File

#!/usr/bin/env python3
# This script expect to run from the Buildroot top directory.
import os
import pexpect
import sys
import time
def main():
if not (len(sys.argv) == 2):
print("Error: incorrect number of arguments")
print("""Usage: boot-qemu-image.py <qemu_arch_defconfig>""")
sys.exit(1)
# Ignore non Qemu defconfig
if not sys.argv[1].startswith('qemu_'):
sys.exit(0)
if not os.path.exists('output/images/start-qemu.sh'):
print('qemu-start.sh is missing, cannot test.')
sys.exit(0)
qemu_start = os.path.join(os.getcwd(), 'output/images/start-qemu.sh')
child = pexpect.spawn(qemu_start, ['serial-only'],
timeout=50, encoding='utf-8',
env={"QEMU_AUDIO_DRV": "none"})
# We want only stdout into the log to avoid double echo
child.logfile = sys.stdout
# Let the spawn actually try to fork+exec to the wrapper, and then
# let the wrapper exec the qemu process.
time.sleep(1)
try:
child.expect(["buildroot login:"], timeout=600)
except pexpect.EOF as e:
# Some emulations require a fork of qemu-system, which may be
# missing on the system, and is not provided by Buildroot.
# In this case, spawn above will succeed at starting the wrapper
# start-qemu.sh, but that one will fail (exit with 127) in such
# a situation.
exit = [int(line.split(' ')[1])
for line in e.value.splitlines()
if line.startswith('exitstatus: ')]
if len(exit) and exit[0] == 127:
print('qemu-start.sh could not find the qemu binary')
sys.exit(0)
print("Connection problem, exiting.")
sys.exit(1)
except pexpect.TIMEOUT:
print("System did not boot in time, exiting.")
sys.exit(1)
child.sendline("root\r")
try:
child.expect(["# "], timeout=600)
except pexpect.EOF:
print("Cannot connect to shell")
sys.exit(1)
except pexpect.TIMEOUT:
print("Timeout while waiting for shell")
sys.exit(1)
child.sendline("poweroff\r")
try:
child.expect(["System halted"], timeout=600)
child.expect(pexpect.EOF)
except pexpect.EOF:
pass
except pexpect.TIMEOUT:
# Qemu may not exit properly after "System halted", ignore.
print("Cannot halt machine")
sys.exit(0)
if __name__ == "__main__":
main()