90 lines
2.2 KiB
Python
Executable File
90 lines
2.2 KiB
Python
Executable File
#! /usr/bin/env python3
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#
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# Copyright (C) 2020 Joshua Watt <JPEWhacker@gmail.com>
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#
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# SPDX-License-Identifier: MIT
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import argparse
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import os
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import random
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import shutil
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import signal
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import subprocess
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import sys
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import time
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def try_unlink(path):
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try:
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os.unlink(path)
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except:
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pass
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def main():
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def cleanup():
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shutil.rmtree("tmp/cache", ignore_errors=True)
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try_unlink("bitbake-cookerdaemon.log")
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try_unlink("bitbake.sock")
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try_unlink("bitbake.lock")
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parser = argparse.ArgumentParser(
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description="Bitbake parser torture test",
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epilog="""
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A torture test for bitbake's parser. Repeatedly interrupts parsing until
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bitbake decides to deadlock.
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""",
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)
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args = parser.parse_args()
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if not "BUILDDIR" in os.environ:
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print(
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"'BUILDDIR' not found in the environment. Did you initialize the build environment?"
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)
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return 1
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os.chdir(os.environ["BUILDDIR"])
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run_num = 0
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while True:
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if run_num % 100 == 0:
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print("Calibrating wait time...")
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cleanup()
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start_time = time.monotonic()
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r = subprocess.run(["bitbake", "-p"])
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max_wait_time = time.monotonic() - start_time
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if r.returncode != 0:
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print("Calibration run exited with %d" % r.returncode)
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return 1
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print("Maximum wait time is %f seconds" % max_wait_time)
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run_num += 1
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wait_time = random.random() * max_wait_time
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print("Run #%d" % run_num)
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print("Will sleep for %f seconds" % wait_time)
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cleanup()
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with subprocess.Popen(["bitbake", "-p"]) as proc:
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time.sleep(wait_time)
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proc.send_signal(signal.SIGINT)
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try:
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proc.wait(45)
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except subprocess.TimeoutExpired:
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print("Run #%d: Waited too long. Possible deadlock!" % run_num)
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proc.wait()
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return 1
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if proc.returncode == 0:
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print("Exited successfully. Timeout too long?")
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else:
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print("Exited with %d" % proc.returncode)
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if __name__ == "__main__":
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sys.exit(main())
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