2008-09-03 19:15:48 +00:00
|
|
|
#!/usr/bin/env python
|
|
|
|
#
|
2008-09-09 20:08:45 +00:00
|
|
|
# Copyright 2008 the V8 project authors. All rights reserved.
|
2008-09-03 19:15:48 +00:00
|
|
|
# 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, getopt
|
|
|
|
|
|
|
|
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()
|
|
|
|
|
|
|
|
def Usage():
|
|
|
|
print("Usage: windows-tick-processor.py binary 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) != 2:
|
|
|
|
Usage();
|
|
|
|
tickprocessor = WindowsTickProcessor()
|
|
|
|
tickprocessor.ParseMapFile(args[0])
|
|
|
|
tickprocessor.ProcessLogfile(args[1], state)
|
|
|
|
tickprocessor.PrintResults()
|
|
|
|
|
|
|
|
if __name__ == '__main__':
|
|
|
|
Main()
|