tools/valgrind/test_suppressions.py

   1 #!/usr/bin/env python
   2 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
   3 # Use of this source code is governed by a BSD-style license that can be
   4 # found in the LICENSE file.
   5
   6 from collections import defaultdict
   7 import os
   8 import re
   9 import sys
  10
  11 import suppressions
  12
  13
  14 def ReadReportsFromFile(filename):
  15   """ Returns a list of (report_hash, report) and the URL of the report on the
  16   waterfall.
  17   """
  18   input_file = file(filename, 'r')
  19   # reports is a list of (error hash, report) pairs.
  20   reports = []
  21   in_suppression = False
  22   cur_supp = []
  23   # This stores the last error hash found while reading the file.
  24   last_hash = ""
  25   for line in input_file:
  26     line = line.strip()
  27     line = line.replace("</span><span class=\"stdout\">", "")
  28     line = line.replace("</span><span class=\"stderr\">", "")
  29     line = line.replace("&lt;", "<")
  30     line = line.replace("&gt;", ">")
  31     if in_suppression:
  32       if line == "}":
  33         cur_supp += ["}"]
  34         reports += [[last_hash, "\n".join(cur_supp)]]
  35         in_suppression = False
  36         cur_supp = []
  37         last_hash = ""
  38       else:
  39         cur_supp += [" "*3 + line]
  40     elif line == "{":
  41       in_suppression = True
  42       cur_supp = ["{"]
  43     elif line.find("Suppression (error hash=#") == 0:
  44       last_hash = line[25:41]
  45   # The line at the end of the file is assumed to store the URL of the report.
  46   return reports,line
  47
  48
  49 def main(argv):
  50   supp = suppressions.GetSuppressions()
  51
  52   # all_reports is a map {report: list of urls containing this report}
  53   all_reports = defaultdict(list)
  54   report_hashes = {}
  55
  56   for f in argv:
  57     f_reports, url = ReadReportsFromFile(f)
  58     for (hash, report) in f_reports:
  59       all_reports[report] += [url]
  60       report_hashes[report] = hash
  61
  62   reports_count = 0
  63   for r in all_reports:
  64     cur_supp = supp['common_suppressions']
  65     if all([re.search("%20Mac%20|mac_valgrind", url)
  66             for url in all_reports[r]]):
  67       # Include mac suppressions if the report is only present on Mac
  68       cur_supp += supp['mac_suppressions']
  69     elif all([re.search("Windows%20", url) for url in all_reports[r]]):
  70       # Include win32 suppressions if the report is only present on Windows
  71       cur_supp += supp['win_suppressions']
  72     elif all([re.search("Linux%20", url) for url in all_reports[r]]):
  73       cur_supp += supp['linux_suppressions']
  74     elif all([re.search("%20Heapcheck", url)
  75               for url in all_reports[r]]):
  76       cur_supp += supp['heapcheck_suppressions']
  77     if all(["DrMemory" in url for url in all_reports[r]]):
  78       cur_supp += supp['drmem_suppressions']
  79     if all(["DrMemory%20full" in url for url in all_reports[r]]):
  80       cur_supp += supp['drmem_full_suppressions']
  81
  82     match = False
  83     for s in cur_supp:
  84       if s.Match(r.split("\n")):
  85         match = True
  86         break
  87     if not match:
  88       reports_count += 1
  89       print "==================================="
  90       print "This report observed at"
  91       for url in all_reports[r]:
  92         print "  %s" % url
  93       print "didn't match any suppressions:"
  94       print "Suppression (error hash=#%s#):" % (report_hashes[r])
  95       print r
  96       print "==================================="
  97
  98   if reports_count > 0:
  99     print ("%d unique reports don't match any of the suppressions" %
 100            reports_count)
 101   else:
 102     print "Congratulations! All reports are suppressed!"
 103     # TODO(timurrrr): also make sure none of the old suppressions
 104     # were narrowed too much.
 105
 106
 107 if __name__ == "__main__":
 108   main(sys.argv[1:])