Increase valgrind's --num-callers to 50

tools/valgrind/valgrind_test.py

 #!/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.
 
 # purify_test.py
 
 '''Runs an exe through Valgrind and puts the intermediate files in a
 directory.
 '''
@@ skipping 177 matching lines @@
   def ValgrindCommand(self):
     """Get the valgrind command to run."""
     # note that self._args begins with the exe to be run
 
     if self._options.custom_valgrind_command:
       # take the full valgrind command from --custom_valgrind_command
       proc = self._options.custom_valgrind_command.split()
     else:
       # construct the valgrind command
       proc = ["valgrind", "--smc-check=all", "--leak-check=full",
-              "--num-callers=30"]
+              "--num-callers=50"]
 
       if self._options.show_all_leaks:
         proc += ["--show-reachable=yes"];
 
       if self._options.track_origins:
         proc += ["--track-origins=yes"];
 
       if self._options.trace_children:
         proc += ["--trace-children=yes"];
 
@@ skipping 116 matching lines @@
     valgrind = ValgrindMac()
     retcode = valgrind.Main()
     sys.exit(retcode)
   elif sys.platform == 'linux2': # Linux
     valgrind = ValgrindLinux()
     retcode = valgrind.Main()
     sys.exit(retcode)
   else:
     logging.error("Unknown platform: %s" % sys.platform)
     sys.exit(1)