mirror of
https://github.com/capstone-engine/llvm-capstone.git
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57b08b0944
to reflect the new license. These used slightly different spellings that defeated my regular expressions. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351648
84 lines
2.5 KiB
Python
Executable File
84 lines
2.5 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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import os
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import sys
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def print_and_exit(msg):
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sys.stderr.write(msg + '\n')
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sys.exit(1)
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def usage_and_exit():
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print_and_exit("Usage: ./gen_link_script.py [--help] [--dryrun] <path/to/libcxx.so> <public_libs>...")
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def help_and_exit():
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help_msg = \
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"""Usage
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gen_link_script.py [--help] [--dryrun] <path/to/libcxx.so> <public_libs>...
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Generate a linker script that links libc++ to the proper ABI library.
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The script replaces the specified libc++ symlink.
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An example script for c++abi would look like "INPUT(libc++.so.1 -lc++abi)".
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Arguments
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<path/to/libcxx.so> - The top level symlink to the versioned libc++ shared
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library. This file is replaced with a linker script.
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<public_libs> - List of library names to include in linker script.
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Exit Status:
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0 if OK,
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1 if the action failed.
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"""
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print_and_exit(help_msg)
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def parse_args():
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args = list(sys.argv)
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del args[0]
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if len(args) == 0:
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usage_and_exit()
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if args[0] == '--help':
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help_and_exit()
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dryrun = '--dryrun' == args[0]
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if dryrun:
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del args[0]
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if len(args) < 2:
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usage_and_exit()
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symlink_file = args[0]
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public_libs = args[1:]
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return dryrun, symlink_file, public_libs
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def main():
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dryrun, symlink_file, public_libs = parse_args()
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# Check that the given libc++.so file is a valid symlink.
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if not os.path.islink(symlink_file):
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print_and_exit("symlink file %s is not a symlink" % symlink_file)
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# Read the symlink so we know what libc++ to link to in the linker script.
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linked_libcxx = os.readlink(symlink_file)
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# Prepare the list of public libraries to link.
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public_libs = ['-l%s' % l for l in public_libs]
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# Generate the linker script contents and print the script and destination
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# information.
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contents = "INPUT(%s %s)" % (linked_libcxx, ' '.join(public_libs))
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print("GENERATING SCRIPT: '%s' as file %s" % (contents, symlink_file))
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# Remove the existing libc++ symlink and replace it with the script.
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if not dryrun:
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os.unlink(symlink_file)
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with open(symlink_file, 'w') as f:
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f.write(contents + "\n")
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if __name__ == '__main__':
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main()
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