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

tools/linux-tick-processor.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
-#       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 <logfile>
-# Where <logfile> is the log file name (eg, v8.log).
-
-import subprocess, re, sys, tickprocessor
-
-class LinuxTickProcessor(tickprocessor.TickProcessor):
-
-  def ParseVMSymbols(self, filename, start, end):
-    """Extract symbols and add them to the cpp entries."""
-    # Extra both dynamic and non-dynamic symbols.
-    command = 'nm -C -n "%s"; nm -C -n -D "%s"' % (filename, filename)
-    process = subprocess.Popen(command, shell=True,
-                               stdout=subprocess.PIPE,
-                               stderr=subprocess.STDOUT)
-    pipe = process.stdout
-    try:
-      for line in pipe:
-        row = re.match('^([0-9a-fA-F]{8}) . (.*)$', line)
-        if row:
-          addr = int(row.group(1), 16)
-          if addr < start and addr < end - start:
-            addr += start
-          self.cpp_entries.Insert(addr, tickprocessor.CodeEntry(addr, row.group(2)))
-    finally:
-      pipe.close()
-
-
-class LinuxCmdLineProcessor(tickprocessor.CmdLineProcessor):
-
-  def GetRequiredArgsNames(self):
-    return 'log_file'
-
-  def ProcessRequiredArgs(self, args):
-    if len(args) != 1:
-      self.PrintUsageAndExit()
-    else:
-      self.log_file = args[0]
-
-
-def Main():
-  cmdline_processor = LinuxCmdLineProcessor()
-  cmdline_processor.ProcessArguments()
-  tick_processor = LinuxTickProcessor()
-  cmdline_processor.RunLogfileProcessing(tick_processor)
-  tick_processor.PrintResults()
-
-
-if __name__ == '__main__':
-  Main()