mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-11-24 14:26:09 +03:00
112 lines
3.7 KiB
Python
Executable File
112 lines
3.7 KiB
Python
Executable File
#!/usr/bin/env python
|
|
# Copyright (c) 2012 The Chromium Authors. All rights reserved.
|
|
# Use of this source code is governed by a BSD-style license that can be
|
|
# found in the LICENSE file.
|
|
|
|
"""A utility script to help building Syzygy-reordered Chrome binaries."""
|
|
|
|
import logging
|
|
import optparse
|
|
import os
|
|
import subprocess
|
|
import sys
|
|
|
|
|
|
# The default relink executable to use to reorder binaries.
|
|
_DEFAULT_RELINKER = os.path.join(
|
|
os.path.join(os.path.dirname(__file__), '../../..'),
|
|
'third_party/syzygy/binaries/exe/relink.exe')
|
|
|
|
_LOGGER = logging.getLogger()
|
|
|
|
# We use the same seed for all random reorderings to get a deterministic build.
|
|
_RANDOM_SEED = 1347344
|
|
|
|
|
|
def _Shell(*cmd, **kw):
|
|
"""Shells out to "cmd". Returns a tuple of cmd's stdout, stderr."""
|
|
_LOGGER.info('Running command "%s".', cmd)
|
|
prog = subprocess.Popen(cmd, **kw)
|
|
|
|
stdout, stderr = prog.communicate()
|
|
if prog.returncode != 0:
|
|
raise RuntimeError('Command "%s" returned %d.' % (cmd, prog.returncode))
|
|
|
|
return stdout, stderr
|
|
|
|
|
|
def _ReorderBinary(relink_exe, executable, symbol, destination_dir):
|
|
"""Reorders the executable found in input_dir, and writes the resultant
|
|
reordered executable and symbol files to destination_dir.
|
|
|
|
If a file named <executable>-order.json exists, imposes that order on the
|
|
output binaries, otherwise orders them randomly.
|
|
"""
|
|
cmd = [relink_exe,
|
|
'--overwrite',
|
|
'--input-image=%s' % executable,
|
|
'--input-pdb=%s' % symbol,
|
|
'--output-image=%s' % os.path.abspath(
|
|
os.path.join(destination_dir, os.path.basename(executable))),
|
|
'--output-pdb=%s' % os.path.abspath(
|
|
os.path.join(destination_dir, os.path.basename(symbol))),]
|
|
|
|
# Check whether there's an order file available for the executable.
|
|
order_file = '%s-order.json' % executable
|
|
if os.path.exists(order_file):
|
|
# The ordering file exists, let's use that.
|
|
_LOGGER.info('Reordering "%s" according to "%s".',
|
|
os.path.basename(executable),
|
|
os.path.basename(order_file))
|
|
cmd.append('--order-file=%s' % order_file)
|
|
else:
|
|
# No ordering file, we randomize the output.
|
|
_LOGGER.info('Randomly reordering "%s"', executable)
|
|
cmd.append('--seed=%d' % _RANDOM_SEED)
|
|
|
|
return _Shell(*cmd)
|
|
|
|
|
|
def main(options):
|
|
logging.basicConfig(level=logging.INFO)
|
|
|
|
# Make sure the destination directory exists.
|
|
if not os.path.isdir(options.destination_dir):
|
|
_LOGGER.info('Creating destination directory "%s".',
|
|
options.destination_dir)
|
|
os.makedirs(options.destination_dir)
|
|
|
|
# Reorder the binaries into the destination directory.
|
|
_ReorderBinary(options.relinker,
|
|
options.input_executable,
|
|
options.input_symbol,
|
|
options.destination_dir)
|
|
|
|
|
|
def _ParseOptions():
|
|
option_parser = optparse.OptionParser()
|
|
option_parser.add_option('--input_executable',
|
|
help='The path to the input executable.')
|
|
option_parser.add_option('--input_symbol',
|
|
help='The path to the input symbol file.')
|
|
option_parser.add_option('--relinker', default=_DEFAULT_RELINKER,
|
|
help='Relinker exectuable to use, defaults to "%s"' % _DEFAULT_RELINKER)
|
|
option_parser.add_option('-d', '--destination_dir',
|
|
help='Destination directory for reordered files, defaults to '
|
|
'the subdirectory "reordered" in the output_dir.')
|
|
options, args = option_parser.parse_args()
|
|
|
|
if not options.input_executable:
|
|
option_parser.error('You must provide an input executable.')
|
|
if not options.input_symbol:
|
|
option_parser.error('You must provide an input symbol file.')
|
|
|
|
if not options.destination_dir:
|
|
options.destination_dir = os.path.join(options.output_dir, 'reordered')
|
|
|
|
return options
|
|
|
|
|
|
if '__main__' == __name__:
|
|
sys.exit(main(_ParseOptions()))
|