v8/tools/linux-tick-processor.py
2008-09-03 19:15:48 +00:00

82 lines
3.0 KiB
Python
Executable File

#!/usr/bin/env python
#
# Copyright 2008 Google Inc. 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 os, re, sys, tickprocessor, getopt;
class LinuxTickProcessor(tickprocessor.TickProcessor):
def ParseVMSymbols(self, filename, start, end):
"""Extract symbols and add them to the cpp entries."""
pipe = os.popen('nm -n %s | c++filt' % filename, 'r')
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()
def Usage():
print("Usage: linux-tick-processor.py --{js,gc,compiler,other} logfile-name");
sys.exit(2)
def Main():
# parse command line options
state = None;
try:
opts, args = getopt.getopt(sys.argv[1:], "jgco", ["js", "gc", "compiler", "other"])
except getopt.GetoptError:
usage()
# process options.
for key, value in opts:
if key in ("-j", "--js"):
state = 0
if key in ("-g", "--gc"):
state = 1
if key in ("-c", "--compiler"):
state = 2
if key in ("-o", "--other"):
state = 3
# do the processing.
if len(args) != 1:
Usage();
tick_processor = LinuxTickProcessor()
tick_processor.ProcessLogfile(args[0], state)
tick_processor.PrintResults()
if __name__ == '__main__':
Main()