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#!/usr/bin/python
# Copyright (c) 2011 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.
"""Wrapper for invoking the BFD loader
A simple script to invoke the bfd loader instead of gold, removing
threading command line options that the bfd loader doesn't support.
Because this script is invoked from gcc via the -B flag, it needs
to be in a file named "ld".
"""
import os
import subprocess
import sys
# TODO(bradchen): Delete this script when Gold supports -Ttext properly.
# It should be fixed by this patch:
# http://sourceware.org/ml/binutils/2011-07/msg00206.html
def main():
LD_BFD = "/usr/bin/ld.bfd"
if not (os.path.exists(LD_BFD) and os.access(LD_BFD, os.X_OK)):
# Can't find the BFD loader, so invoke the unmodified argv
args = sys.argv
args[0] = "ld"
print "ld_bfd/ld: using ld"
sys.exit(subprocess.call(args))
# found the BFD loader, so use it
args = list()
args.append("/usr/bin/ld.bfd")
for arg in sys.argv[1:]:
if arg == "-Wl,--threads" or arg == "--threads":
continue
if arg == "-Wl,--thread-count=4" or arg == "--thread-count=4":
continue
args.append(arg)
print("ld_bfd/ld: exec ", args)
sys.exit(subprocess.call(args))
if __name__ == "__main__":
main()
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