mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-11-24 06:16:30 +03:00
94 lines
2.8 KiB
Python
94 lines
2.8 KiB
Python
# Copyright (c) 2016 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.
|
|
|
|
"""Helper functions for gcc_toolchain.gni wrappers."""
|
|
|
|
import gzip
|
|
import os
|
|
import re
|
|
import subprocess
|
|
import shlex
|
|
import shutil
|
|
import sys
|
|
import threading
|
|
|
|
_BAT_PREFIX = 'cmd /c call '
|
|
|
|
|
|
def _GzipThenDelete(src_path, dest_path):
|
|
# Results for Android map file with GCC on a z620:
|
|
# Uncompressed: 207MB
|
|
# gzip -9: 16.4MB, takes 8.7 seconds.
|
|
# gzip -1: 21.8MB, takes 2.0 seconds.
|
|
# Piping directly from the linker via -print-map (or via -Map with a fifo)
|
|
# adds a whopping 30-45 seconds!
|
|
with open(src_path, 'rb') as f_in, gzip.GzipFile(dest_path, 'wb', 1) as f_out:
|
|
shutil.copyfileobj(f_in, f_out)
|
|
os.unlink(src_path)
|
|
|
|
|
|
def CommandToRun(command):
|
|
"""Generates commands compatible with Windows.
|
|
|
|
When running on a Windows host and using a toolchain whose tools are
|
|
actually wrapper scripts (i.e. .bat files on Windows) rather than binary
|
|
executables, the |command| to run has to be prefixed with this magic.
|
|
The GN toolchain definitions take care of that for when GN/Ninja is
|
|
running the tool directly. When that command is passed in to this
|
|
script, it appears as a unitary string but needs to be split up so that
|
|
just 'cmd' is the actual command given to Python's subprocess module.
|
|
|
|
Args:
|
|
command: List containing the UNIX style |command|.
|
|
|
|
Returns:
|
|
A list containing the Windows version of the |command|.
|
|
"""
|
|
if command[0].startswith(_BAT_PREFIX):
|
|
command = command[0].split(None, 3) + command[1:]
|
|
return command
|
|
|
|
|
|
def RunLinkWithOptionalMapFile(command, env=None, map_file=None):
|
|
"""Runs the given command, adding in -Wl,-Map when |map_file| is given.
|
|
|
|
Also takes care of gzipping when |map_file| ends with .gz.
|
|
|
|
Args:
|
|
command: List of arguments comprising the command.
|
|
env: Environment variables.
|
|
map_file: Path to output map_file.
|
|
|
|
Returns:
|
|
The exit code of running |command|.
|
|
"""
|
|
tmp_map_path = None
|
|
if map_file and map_file.endswith('.gz'):
|
|
tmp_map_path = map_file + '.tmp'
|
|
command.append('-Wl,-Map,' + tmp_map_path)
|
|
elif map_file:
|
|
command.append('-Wl,-Map,' + map_file)
|
|
|
|
result = subprocess.call(command, env=env)
|
|
|
|
if tmp_map_path and result == 0:
|
|
threading.Thread(
|
|
target=lambda: _GzipThenDelete(tmp_map_path, map_file)).start()
|
|
elif tmp_map_path and os.path.exists(tmp_map_path):
|
|
os.unlink(tmp_map_path)
|
|
|
|
return result
|
|
|
|
|
|
def CaptureCommandStderr(command, env=None):
|
|
"""Returns the stderr of a command.
|
|
|
|
Args:
|
|
command: A list containing the command and arguments.
|
|
env: Environment variables for the new process.
|
|
"""
|
|
child = subprocess.Popen(command, stderr=subprocess.PIPE, env=env)
|
|
_, stderr = child.communicate()
|
|
return child.returncode, stderr
|