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================
Comment at: lldb/scripts/reproducer-replay.py:1
+#! /usr/bin/env python3
+
----------------
This is needed for the timeout. I'd rather not rely on an external package for
this unless anyone objects.
Script to replay reproducers with the command line driver in parallel. This is
used for stage 1 as described in the RFC on lldb-dev [1].
[1] http://lists.llvm.org/pipermail/lldb-dev/2020-April/016100.html
Repository:
rLLDB LLDB
https://reviews.llvm.org/D77608
Files:
lldb/scripts/reproducer-replay.py
Index: lldb/scripts/reproducer-replay.py
===================================================================
--- /dev/null
+++ lldb/scripts/reproducer-replay.py
@@ -0,0 +1,98 @@
+#! /usr/bin/env python3
+
+from multiprocessing import Pool
+import argparse
+import tempfile
+import logging
+import os
+import subprocess
+
+
+def run_reproducer(path):
+ proc = subprocess.Popen([LLDB, '--replay', path],
+ stdout=subprocess.PIPE,
+ stderr=subprocess.PIPE)
+ reason = None
+ try:
+ outs, errs = proc.communicate(timeout=TIMEOUT)
+ result = 'PASSED' if proc.returncode == 0 else 'FAILED'
+ if proc.returncode != 0:
+ outs = outs.decode()
+ errs = errs.decode()
+ # Do some pattern matching to find out the cause of the failure.
+ if 'Encountered unexpected packet during replay' in errs:
+ reason = 'Unexpected packet'
+ elif 'Assertion failed' in errs:
+ reason = 'Assertion failed'
+ elif 'UNREACHABLE' in errs:
+ reason = 'Unreachable executed'
+ elif 'Segmentation fault' in errs:
+ reason = 'Segmentation fault'
+ elif 'Illegal instruction' in errs:
+ reason = 'Illegal instruction'
+ else:
+ reason = f'Exit code {proc.returncode}'
+ except subprocess.TimeoutExpired:
+ proc.kill()
+ outs, errs = proc.communicate()
+ result = 'TIMEOUT'
+
+ reason_str = f' ({reason})' if reason else ''
+ print(f'{result}: {path}{reason_str}')
+
+
+def find_reproducers(path):
+ reproducers = []
+ for root, dirs, files in os.walk(path):
+ for dir in dirs:
+ _, extension = os.path.splitext(dir)
+ if dir.startswith('Test') and extension == '.py':
+ reproducers.append(os.path.join(root, dir))
+ return reproducers
+
+
+if __name__ == '__main__':
+ parser = argparse.ArgumentParser(description='LLDB Replay Driver')
+ parser.add_argument('-j',
+ '--threads',
+ type=int,
+ default=8,
+ help='Number of threads')
+ parser.add_argument('-t',
+ '--timeout',
+ type=int,
+ default=60,
+ help='Replay timeout')
+ parser.add_argument('-l',
+ '--lldb',
+ type=str,
+ required=True,
+ help='Path to the LLDB command line driver')
+ parser.add_argument('-p',
+ '--path',
+ type=str,
+ default=None,
+ help='Path to directory containing the reproducers')
+ args = parser.parse_args()
+
+ global LLDB
+ global TIMEOUT
+ LLDB = args.lldb
+ TIMEOUT = args.timeout
+
+ if args.path:
+ path = args.path
+ else:
+ path = tempfile.gettempdir()
+
+ print(f'Looking for reproducers in {path}')
+ reproducers = find_reproducers(path)
+ print(f'Found {len(reproducers)} reproducers')
+ print(
+ f'Replaying with {args.threads} threads and {args.timeout} seconds timeout'
+ )
+ try:
+ pool = Pool(args.threads)
+ pool.map(run_reproducer, reproducers)
+ except KeyboardInterrupt:
+ print('Interrupted')
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