Add a tool to look for unused suppressions.

tools/valgrind/suppressions.py

Index: tools/valgrind/suppressions.py
diff --git a/tools/valgrind/suppressions.py b/tools/valgrind/suppressions.py
index a1a0d1e4a4cfe2feb9da655346728bf7d270aa0e..df893ca2eae3797bfc561afc9096bccf3f4aeee3 100755
--- a/tools/valgrind/suppressions.py
+++ b/tools/valgrind/suppressions.py
@@ -29,9 +29,45 @@ import os
 import re
 import sys
 
+import path_utils

[Timur Iskhodzhanov, 2012/12/03 11:14:13]

Traceback (most recent call last):
  File "../depot_tools/gcl.py", line 1466, in <module>
    sys.exit(main(sys.argv[1:]))
  File "../depot_tools/gcl.py", line 1444, in main
    return command(argv[1:])
  File "../depot_tools/gcl.py", line 766, in hook
    return function(change_info, args)
  File "../depot_tools/gcl.py", line 818, in CMDupload
    output = OptionallyDoPresubmitChecks(change_info, False, args)
  File "../depot_tools/gcl.py", line 735, in OptionallyDoPresubmitChecks
    return DoPresubmitChecks(change_info, committing, True)
  File "../depot_tools/gcl.py", line 1227, in DoPresubmitChecks
    rietveld_obj=change_info.RpcServer())
  File ".../chromium/depot_tools/presubmit_support.py", line 1107, in
DoPresubmitChecks
    results += executer.ExecPresubmitScript(presubmit_script, filename)
  File ".../chromium/depot_tools/presubmit_support.py", line 1024, in
ExecPresubmitScript
    result = eval(function_name + '(*__args)', context)
  File "<string>", line 1, in <module>
  File "<string>", line 27, in CheckChangeOnUpload
  File "<string>", line 20, in CheckChange
  File ".../chromium/src/tools/valgrind/tsan/../suppressions.py", line 32, in
<module>
    import path_utils
ImportError: No module named path_utils
Sending crash report ...
  args: ['../depot_tools/gcl.py', 'upload', 'glider', '--send_mail', '-r',
'glider@chromium.org']
  cwd: .../chromium/src/tools/valg
  exception: No module named path_utils
  host: ***.google.com
  stack:   File "../depot_tools/gcl.py", line 1466, in <mod
  user: timurrrr
  version: 2.6.5 (r265:79063, Oct  1 2012, 22:04:36) 
[GCC 4.
A stack trace has been sent to the maintainers.

+
+
 ELLIPSIS = '...'
 
 
+def GetSuppressions():
+  suppressions_root = path_utils.ScriptDir()
+  JOIN = os.path.join
+
+  result = {}
+
+  supp_filename = JOIN(suppressions_root, "memcheck", "suppressions.txt")
+  vg_common = ReadSuppressionsFromFile(supp_filename)
+  supp_filename = JOIN(suppressions_root, "tsan", "suppressions.txt")
+  tsan_common = ReadSuppressionsFromFile(supp_filename)
+  result['common_suppressions'] = vg_common + tsan_common
+
+  supp_filename = JOIN(suppressions_root, "memcheck", "suppressions_mac.txt")
+  vg_mac = ReadSuppressionsFromFile(supp_filename)
+  supp_filename = JOIN(suppressions_root, "tsan", "suppressions_mac.txt")
+  tsan_mac = ReadSuppressionsFromFile(supp_filename)
+  result['mac_suppressions'] = vg_mac + tsan_mac
+
+  supp_filename = JOIN(suppressions_root, "tsan", "suppressions_win32.txt")
+  tsan_win = ReadSuppressionsFromFile(supp_filename)
+  result['win_suppressions'] = tsan_win
+
+  supp_filename = JOIN(suppressions_root, "..", "heapcheck", "suppressions.txt")
+  result['heapcheck_suppressions'] = ReadSuppressionsFromFile(supp_filename)
+
+  supp_filename = JOIN(suppressions_root, "drmemory", "suppressions.txt")
+  result['drmem_suppressions'] = ReadSuppressionsFromFile(supp_filename)
+  supp_filename = JOIN(suppressions_root, "drmemory", "suppressions_full.txt")
+  result['drmem_full_suppressions'] = ReadSuppressionsFromFile(supp_filename)
+
+  return result
+
+
 def GlobToRegex(glob_pattern, ignore_case=False):
   """Translate glob wildcards (*?) into regex syntax.  Escape the rest."""
   regex = ''