Add basic infrastructure for protecting V8's heap when leaving the VM...

tools/test.py

 #!/usr/bin/env python
 #
 # Copyright 2008 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
@@ skipping 145 matching lines @@
     for failed in self.failed:
       self.PrintFailureHeader(failed.test)
       if failed.output.stderr:
         print "--- stderr ---"
         print failed.output.stderr.strip()
       if failed.output.stdout:
         print "--- stdout ---"
         print failed.output.stdout.strip()
       print "Command: %s" % EscapeCommand(failed.command)
       if failed.HasCrashed():
-        print "--- CRASHED ---"      
+        print "--- CRASHED ---"
     if len(self.failed) == 0:
       print "==="
       print "=== All tests succeeded"
       print "==="
     else:
       print
       print "==="
       print "=== %i tests failed" % len(self.failed)
       if self.crashed > 0:
         print "=== %i tests CRASHED" % self.crashed
@@ skipping 60 matching lines @@
       self.ClearLine(self.last_status_length)
       self.PrintFailureHeader(output.test)
       stdout = output.output.stdout.strip()
       if len(stdout):
         print self.templates['stdout'] % stdout
       stderr = output.output.stderr.strip()
       if len(stderr):
         print self.templates['stderr'] % stderr
       print "Command: %s" % EscapeCommand(output.command)
       if output.HasCrashed():
-        print "--- CRASHED ---"      
+        print "--- CRASHED ---"
 
   def Truncate(self, str, length):
     if length and (len(str) > (length - 3)):
       return str[:(length-3)] + "..."
     else:
       return str
 
   def PrintProgress(self, name):
     self.ClearLine(self.last_status_length)
     elapsed = time.time() - self.start_time
@@ skipping 80 matching lines @@
   def DidFail(self, output):
     if self.failed is None:
       self.failed = self.IsFailureOutput(output)
     return self.failed
 
   def IsFailureOutput(self, output):
     return output.exit_code != 0
 
   def GetSource(self):
     return "(no source available)"
-    
+
   def RunCommand(self, command):
     full_command = self.context.processor(command)
     output = Execute(full_command, self.context, self.context.timeout)
     return TestOutput(self, full_command, output)
 
   def Run(self):
     return self.RunCommand(self.GetCommand())
 
 
 class TestOutput(object):
@@ skipping 45 matching lines @@
 SEM_NOGPFAULTERRORBOX = 0x0002 # Microsoft Platform SDK WinBase.h
 
 def Win32SetErrorMode(mode):
   prev_error_mode = SEM_INVALID_VALUE
   try:
     import ctypes
     prev_error_mode = ctypes.windll.kernel32.SetErrorMode(mode);
   except ImportError:
     pass
   return prev_error_mode
-  
+
 def RunProcess(context, timeout, args, **rest):
   if context.verbose: print "#", " ".join(args)
   popen_args = args
   prev_error_mode = SEM_INVALID_VALUE;
   if utils.IsWindows():
     popen_args = '"' + subprocess.list2cmdline(args) + '"'
     if context.suppress_dialogs:
       # Try to change the error mode to avoid dialogs on fatal errors. Don't
       # touch any existing error mode flags by merging the existing error mode.
       # See http://blogs.msdn.com/oldnewthing/archive/2004/07/27/198410.aspx.
@@ skipping 894 matching lines @@
     for entry in timed_tests[:20]:
       t = FormatTime(entry.duration)
       sys.stderr.write("%4i (%s) %s\n" % (index, t, entry.GetLabel()))
       index += 1
 
   return result
 
 
 if __name__ == '__main__':
   sys.exit(Main())