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-rwxr-xr-xsupport/scripts/boot-qemu-image.py75
1 files changed, 75 insertions, 0 deletions
diff --git a/support/scripts/boot-qemu-image.py b/support/scripts/boot-qemu-image.py
new file mode 100755
index 0000000000..2c1afba398
--- /dev/null
+++ b/support/scripts/boot-qemu-image.py
@@ -0,0 +1,75 @@
+#!/usr/bin/env python3
+
+# This script expect to run from the Buildroot top directory.
+
+import pexpect
+import sys
+import os
+
+
+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)
+
+ qemu_start = os.path.join(os.getcwd(), 'output/images/start-qemu.sh')
+
+ child = pexpect.spawn(qemu_start, ['serial-only'],
+ timeout=5, encoding='utf-8',
+ env={"QEMU_AUDIO_DRV": "none"})
+
+ # We want only stdout into the log to avoid double echo
+ child.logfile = sys.stdout
+
+ try:
+ child.expect(["buildroot login:", pexpect.TIMEOUT], timeout=60)
+ 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(l.split(' ')[1])
+ for l in e.value.splitlines()
+ if l.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(["# ", pexpect.TIMEOUT], timeout=60)
+ 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", pexpect.TIMEOUT], timeout=60)
+ 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()