[Isolates] Merge 6700:7030 from bleeding_edge to isolates.

tools/windows-tick-processor.py

Index: tools/windows-tick-processor.py
===================================================================
--- tools/windows-tick-processor.py	(revision 7006)
+++ tools/windows-tick-processor.py	(working copy)
@@ -1,137 +0,0 @@
-#!/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
-#       copyright notice, this list of conditions and the following
-#       disclaimer in the documentation and/or other materials provided
-#       with the distribution.
-#     * Neither the name of Google Inc. nor the names of its
-#       contributors may be used to endorse or promote products derived
-#       from this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-# Usage: process-ticks.py <binary> <logfile>
-#
-# Where <binary> is the binary program name (eg, v8_shell.exe) and
-# <logfile> is the log file name (eg, v8.log).
-#
-# This tick processor expects to find a map file for the binary named
-# binary.map if the binary is named binary.exe. The tick processor
-# only works for statically linked executables - no information about
-# shared libraries is logged from v8 on Windows.
-
-import os, re, sys, tickprocessor
-
-class WindowsTickProcessor(tickprocessor.TickProcessor):
-
-  def Unmangle(self, name):
-    """Performs very simple unmangling of C++ names.
-
-    Does not handle arguments and template arguments. The mangled names have
-    the form:
-
-       ?LookupInDescriptor@JSObject@internal@v8@@...arguments info...
-
-    """
-    # Name is mangled if it starts with a question mark.
-    is_mangled = re.match("^\?(.*)", name)
-    if is_mangled:
-      substrings = is_mangled.group(1).split('@')
-      try:
-        # The function name is terminated by two @s in a row.  Find the
-        # substrings that are part of the function name.
-        index = substrings.index('')
-        substrings = substrings[0:index]
-      except ValueError:
-        # If we did not find two @s in a row, the mangled name is not in
-        # the format we expect and we give up.
-        return name
-      substrings.reverse()
-      function_name = "::".join(substrings)
-      return function_name
-    return name
-
-
-  def ParseMapFile(self, filename):
-    """Parse map file and add symbol information to the cpp entries."""
-    # Locate map file.
-    has_dot = re.match('^([a-zA-F0-9_-]*)[\.]?.*$', filename)
-    if has_dot:
-      map_file_name = has_dot.group(1) + '.map'
-      try:
-        map_file = open(map_file_name, 'rb')
-      except IOError:
-        sys.exit("Could not open map file: " + map_file_name)
-    else:
-      sys.exit("Could not find map file for executable: " + filename)
-    try:
-      max_addr = 0
-      min_addr = 2**30
-      # Process map file and search for function entries.
-      row_regexp = re.compile(' 0001:[0-9a-fA-F]{8}\s*([_\?@$0-9a-zA-Z]*)\s*([0-9a-fA-F]{8}).*')
-      for line in map_file:
-        row = re.match(row_regexp, line)
-        if row:
-          addr = int(row.group(2), 16)
-          if addr > max_addr:
-            max_addr = addr
-          if addr < min_addr:
-            min_addr = addr
-          mangled_name = row.group(1)
-          name = self.Unmangle(mangled_name)
-          self.cpp_entries.Insert(addr, tickprocessor.CodeEntry(addr, name));
-      i = min_addr
-      # Mark the pages for which there are functions in the map file.
-      while i < max_addr:
-        page = i >> 12
-        self.vm_extent[page] = 1
-        i += 4096
-    finally:
-      map_file.close()
-
-
-class WindowsCmdLineProcessor(tickprocessor.CmdLineProcessor):
-
-  def __init__(self):
-    super(WindowsCmdLineProcessor, self).__init__()
-    self.binary_file = None
-
-  def GetRequiredArgsNames(self):
-    return 'binary log_file'
-
-  def ProcessRequiredArgs(self, args):
-    if len(args) != 2:
-      self.PrintUsageAndExit()
-    else:
-      self.binary_file = args[0]
-      self.log_file = args[1]
-
-
-def Main():
-  cmdline_processor = WindowsCmdLineProcessor()
-  cmdline_processor.ProcessArguments()
-  tickprocessor = WindowsTickProcessor()
-  tickprocessor.ParseMapFile(cmdline_processor.binary_file)
-  cmdline_processor.RunLogfileProcessing(tickprocessor)
-  tickprocessor.PrintResults()
-
-if __name__ == '__main__':
-  Main()