linux_pidfd_open_args
int linux_pidfd_open(struct thread *, struct linux_pidfd_open_args *);
int linux_pidfd_open(struct thread *, struct linux_pidfd_open_args *);
int linux_pidfd_open(struct thread *, struct linux_pidfd_open_args *);
int linux_pidfd_open(struct thread *, struct linux_pidfd_open_args *);