47d7a81ba4
Because of the way the Python hash function works, it's not guaranteed to be the same. This was causing a lot of reproducers to be generated for the same tests, even though the CWD or arguments didn't change. Switching to an MD5 hash should fix that.
63 lines
1.7 KiB
Python
Executable File
63 lines
1.7 KiB
Python
Executable File
#!/usr/bin/env python
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"""lldb-repro
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lldb-repro is a utility to transparently capture and replay debugger sessions
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through the command line driver. Its used to test the reproducers by running
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the test suite twice.
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During the first run, with 'capture' as its first argument, it captures a
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reproducer for every lldb invocation and saves it to a well-know location
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derived from the arguments and current working directory.
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During the second run, with 'replay' as its first argument, the test suite is
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run again but this time every invocation of lldb replays the previously
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recorded session.
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"""
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import sys
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import os
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import tempfile
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import subprocess
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import hashlib
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def help():
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print("usage: {} capture|replay [args]".format(sys.argv[0]))
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def main():
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if len(sys.argv) < 2:
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help()
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return 1
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# Compute an MD5 hash based on the input arguments and the current working
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# directory.
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h = hashlib.md5()
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h.update(' '.join(sys.argv[2:]))
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h.update(os.getcwd())
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input_hash = h.hexdigest()
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# Use the hash to "uniquely" identify a reproducer path.
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reproducer_path = os.path.join(tempfile.gettempdir(), input_hash)
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# Create a new lldb invocation with capture or replay enabled.
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lldb = os.path.join(os.path.dirname(sys.argv[0]), 'lldb')
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new_args = [lldb]
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if sys.argv[1] == "replay":
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new_args.extend(['--replay', reproducer_path])
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elif sys.argv[1] == "capture":
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new_args.extend([
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'--capture', '--capture-path', reproducer_path,
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'--reproducer-auto-generate'
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])
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new_args.extend(sys.argv[2:])
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else:
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help()
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return 1
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return subprocess.call(new_args)
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if __name__ == '__main__':
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exit(main())
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