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#!/usr/bin/python
# Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# tsan_analyze.py
''' Given a ThreadSanitizer output file, parses errors and uniques them.'''
import logging
import optparse
import os
import re
import subprocess
import sys
import time
class TsanAnalyze:
''' Given a set of ThreadSanitizer output files, parse all the errors out of
them, unique them and output the results.'''
def __init__(self, source_dir, files):
'''Reads in a set of files.
Args:
source_dir: Path to top of source tree for this build
files: A list of filenames.
'''
self.races = []
for file in files:
self.races = self.races + self.GetReportFrom(file)
def GetReportFrom(self, filename):
ret = []
f = open(filename, 'r')
while True:
line = f.readline()
if (line == ''):
break
tmp = ""
while (re.match(".*INFO: T.* " +
"(has been created by T.* at this point|is program's main thread)"
".*", line)):
tmp = tmp + line
while not re.match(".*}}}.*", line):
line = f.readline()
tmp = tmp + line
line = f.readline()
if (re.match(".*Possible data race.*", line)):
tmp = tmp + line
while not re.match(".*}}}.*", line):
line = f.readline()
tmp = tmp + line
ret.append(tmp.strip())
f.close()
return ret
def Report(self):
if len(self.races) > 0:
logging.error("Found %i race reports" % len(self.races))
for report in self.races:
logging.error("\n" + report)
return -1
logging.info("PASS: No race reports found")
return 0
if __name__ == '__main__':
'''For testing only. The TsanAnalyze class should be imported instead.'''
retcode = 0
parser = optparse.OptionParser("usage: %prog [options] <files to analyze>")
parser.add_option("", "--source_dir",
help="path to top of source tree for this build"
"(used to normalize source paths in baseline)")
(options, args) = parser.parse_args()
if not len(args) >= 1:
parser.error("no filename specified")
filenames = args
analyzer = TsanAnalyze(options.source_dir, filenames)
retcode = analyzer.Report()
sys.exit(retcode)
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