gen_ntdll_freestanding_lib.py

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# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-

# vim: set filetype=python:

# This Source Code Form is subject to the terms of the Mozilla Public

# License, v. 2.0. If a copy of the MPL was not distributed with this

# file, You can obtain one at http://mozilla.org/MPL/2.0/.

import os

import subprocess

import tempfile

def main(output_fd, def_file, llvm_dlltool, *llvm_dlltool_args):

    # llvm-dlltool can't output to stdout, so we create a temp file, use that

    # to write out the lib, and then copy it over to output_fd

    (tmp_fd, tmp_output) = tempfile.mkstemp()

    os.close(tmp_fd)

    try:

        cmd = [llvm_dlltool]

        cmd.extend(llvm_dlltool_args)

        cmd += ["-d", def_file, "-l", tmp_output]

        subprocess.check_call(cmd)

        with open(tmp_output, "rb") as tmplib:

            output_fd.write(tmplib.read())

    finally:

        os.remove(tmp_output)