Function check_dynamic

scripts/check_binary_dependencies.py:243–283

Check for dynamic symbols required by an executable, categorizing them from the intermediate files that may have included those symbols.

(
    nm: str, readelf: str, cxxfilt: str, binary_file: Path, build_root: Optional[Path]
)

def check_dynamic(
    nm: str, readelf: str, cxxfilt: str, binary_file: Path, build_root: Optional[Path]
) -> int:
    """Check for dynamic symbols required by an executable, categorizing them from the
    intermediate files that may have included those symbols.
    """
    symbols = get_cached_symbols(nm, build_root) if build_root is not None else {}

    dynamic_symbols = []
    binary_dyn_sym = get_binary_dynamic_symbols(readelf, binary_file)
    for symbol in binary_dyn_sym:
        if symbols is not None and symbol in symbols:
            dynamic_symbols.append(symbols[symbol])
        else:
            dynamic_symbols.append(Symbol(symbol, "", False, False, []))
    demangle_symbols(cxxfilt, dynamic_symbols)
    check_disallowed_symbols(cxxfilt, dynamic_symbols)

    dynamic_by_file = {}
    global_dynamic = []
    for symbol in dynamic_symbols:
        if len(symbol.sources) == 0:
            global_dynamic.append(symbol)
            continue

        for file in symbol.sources:
            if file not in dynamic_by_file:
                dynamic_by_file[file] = []
            dynamic_by_file[file].append(symbol)

    print("Executable relies on the following dynamic symbols:")
    for file, symbols in dynamic_by_file.items():
        print(f"{file} contains dynamic symbols:")
        for symbol in symbols:
            print(" *", symbol.demangled)
        print()

    if len(dynamic_by_file) > 0:
        return STATUS_ERROR

    return STATUS_OK


def bubble_error(program_status, routine_status) -> int: