mirror of
https://github.com/klzgrad/naiveproxy.git
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75 lines
2.5 KiB
Python
75 lines
2.5 KiB
Python
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#!/usr/bin/env python
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# Copyright 2015 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""Runs a linking command and optionally a strip command.
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This script exists to avoid using complex shell commands in
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gcc_toolchain.gni's tool("link"), in case the host running the compiler
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does not have a POSIX-like shell (e.g. Windows).
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"""
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import argparse
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import os
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import subprocess
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import sys
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import wrapper_utils
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# When running on a Windows host and using a toolchain whose tools are
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# actually wrapper scripts (i.e. .bat files on Windows) rather than binary
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# executables, the "command" to run has to be prefixed with this magic.
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# The GN toolchain definitions take care of that for when GN/Ninja is
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# running the tool directly. When that command is passed in to this
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# script, it appears as a unitary string but needs to be split up so that
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# just 'cmd' is the actual command given to Python's subprocess module.
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BAT_PREFIX = 'cmd /c call '
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def CommandToRun(command):
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if command[0].startswith(BAT_PREFIX):
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command = command[0].split(None, 3) + command[1:]
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return command
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def main():
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument('--strip',
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help='The strip binary to run',
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metavar='PATH')
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parser.add_argument('--unstripped-file',
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help='Executable file produced by linking command',
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metavar='FILE')
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parser.add_argument('--map-file',
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help=('Use --Wl,-Map to generate a map file. Will be '
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'gzipped if extension ends with .gz'),
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metavar='FILE')
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parser.add_argument('--output',
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required=True,
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help='Final output executable file',
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metavar='FILE')
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parser.add_argument('command', nargs='+',
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help='Linking command')
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args = parser.parse_args()
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# Work-around for gold being slow-by-default. http://crbug.com/632230
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fast_env = dict(os.environ)
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fast_env['LC_ALL'] = 'C'
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result = wrapper_utils.RunLinkWithOptionalMapFile(args.command, env=fast_env,
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map_file=args.map_file)
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if result != 0:
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return result
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# Finally, strip the linked executable (if desired).
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if args.strip:
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result = subprocess.call(CommandToRun([
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args.strip, '-o', args.output, args.unstripped_file
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]))
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return result
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if __name__ == "__main__":
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sys.exit(main())
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