maps__unwind_libunwind_ops
const struct unwind_libunwind_ops *maps__unwind_libunwind_ops(const struct maps *maps);
err = maps__unwind_libunwind_ops(maps)->prepare_access(maps);
const struct unwind_libunwind_ops *ops = maps__unwind_libunwind_ops(maps);
const struct unwind_libunwind_ops *ops = maps__unwind_libunwind_ops(maps);
const struct unwind_libunwind_ops *ops = maps__unwind_libunwind_ops(thread__maps(thread));