TSan: print error reports to stdout instead of stderr

tools/valgrind/tsan_analyze.py

 #!/usr/bin/env python
 # Copyright (c) 2011 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 gdb_helper
@@ skipping 218 matching lines @@
     self._cur_testcase = testcase
     reports = self.GetReports(files)
     self._cur_testcase = None  # just in case, shouldn't be used anymore
 
     common.PrintUsedSuppressionsList(self.used_suppressions)
 
 
     retcode = 0
     if reports:
       logging.error("FAIL! Found %i report(s)" % len(reports))
+      sys.stderr.flush()
       for report in reports:
-        logging.error('\n' + report)
+        logging.info('\n' + report)
+      sys.stdout.flush()
       retcode = -1
 
     # Report tool's insanity even if there were errors.
     if (check_sanity and
         TsanAnalyzer.SANITY_TEST_SUPPRESSION not in self.used_suppressions):
       logging.error("FAIL! Sanity check failed!")
       retcode = -3
 
     if retcode != 0:
       return retcode
 
     logging.info("PASS: No reports found")
     return 0
 
 
 def main():
   '''For testing only. The TsanAnalyzer class should be imported instead.'''
   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 args:
     parser.error("no filename specified")
   filenames = args
 
+  logging.getLogger().setLevel(logging.INFO)
   analyzer = TsanAnalyzer(options.source_dir, use_gdb=True)
   return analyzer.Report(filenames, None)
 
 
 if __name__ == '__main__':
   sys.exit(main())