58 lines
1.9 KiB
Python
Executable File
58 lines
1.9 KiB
Python
Executable File
#!/usr/bin/env python
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#===----------------------------------------------------------------------===##
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#
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# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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# See https://llvm.org/LICENSE.txt for license information.
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# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#
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#===----------------------------------------------------------------------===##
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"""
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Generate a linker script that links libc++ to the proper ABI library.
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An example script for c++abi would look like "INPUT(libc++.so.1 -lc++abi)".
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"""
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import argparse
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import os
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import sys
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def main():
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument("--dryrun", help="Don't write any output",
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action="store_true", default=False)
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parser.add_argument("--rename", action="store_true", default=False,
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help="Rename the output as input so we can replace it")
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parser.add_argument("--input", help="Path to libc++ library", required=True)
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parser.add_argument("--output", help="Path to libc++ linker script", required=True)
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parser.add_argument("libraries", nargs="+",
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help="List of libraries libc++ depends on")
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args = parser.parse_args()
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# Use the relative path for the libc++ library.
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libcxx = os.path.relpath(args.input, os.path.dirname(args.output))
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# Prepare the list of public libraries to link.
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public_libs = ['-l%s' % l for l in args.libraries]
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# Generate the linker script contents.
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contents = "INPUT(%s)" % ' '.join([libcxx] + public_libs)
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print("GENERATING SCRIPT: '%s' as file %s" % (contents, args.output))
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if args.dryrun:
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return 0
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# Remove the existing libc++ symlink if it exists.
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if os.path.islink(args.output):
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os.unlink(args.output)
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# Replace it with the linker script.
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with open(args.output, 'w') as f:
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f.write(contents + "\n")
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return 0
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if __name__ == '__main__':
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sys.exit(main())
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