Required glibc version of a binary

required_glibc_version.py

import subprocess
import sys
from packaging.version import Version


def main(argv):
    if len(argv) != 2:
        print(f"usage: {argv[0]} <elf>")
        sys.exit(1)

    try:
        res = subprocess.run(f"set -eu; objdump -T {argv[1]} | awk '{{print $5}}' | grep GLIBC | sort -u", shell=True, check=True, capture_output=True, text=True)
    except subprocess.CalledProcessError as e:
        print(e.stdout)
        print(e.stderr)
        raise

    glibc_ver = []
    glibcxx_ver = []
    for version in res.stdout.splitlines():
        if version.startswith("GLIBCXX_"):
            glibcxx_ver.append(Version(version[len("GLIBCXX_"):]))
        elif version.startswith("GLIBC_"):
            glibc_ver.append(Version(version[len("GLIBC_"):]))
        else:
            raise ValueError(f"unexpected version: {version}")

    print("glibc version:", max(glibc_ver))
    print("glibcxx version:", max(glibcxx_ver))


if __name__ == "__main__":
    main(sys.argv)