libc {
  GLIBC_2.0 {
    __mach_msg; mach_msg; __mach_reply_port; mach_reply_port;
    __mach_task_self_; __mach_thread_self; mach_thread_self;
    mach_host_self; __mach_host_self;
    swtch_pri; __swtch_pri; swtch; __swtch;
    thread_switch; __thread_switch;

    mig_init;
    __mig_allocate; __mig_deallocate; mig_deallocate; mig_allocate;
    __mig_get_reply_port; __mig_put_reply_port; __mig_dealloc_reply_port;
    mig_get_reply_port; mig_put_reply_port; mig_dealloc_reply_port;

    mach_msg_server_timeout; mach_msg_server;
    get_privileged_ports; __get_privileged_ports;
    mach_setup_thread; __mach_setup_thread;
    mach_open_devstream;

    vm_page_size; __vm_page_size;

    __spin_lock_solid;

    # system call shortcuts
    vm_map; __vm_map;
    vm_allocate; __vm_allocate;
    vm_deallocate; __vm_deallocate;
    task_create; __task_create;
    task_terminate; __task_terminate;
    task_suspend; __task_suspend;
    task_set_special_port; __task_set_special_port;
    mach_port_allocate; __mach_port_allocate;
    mach_port_deallocate; __mach_port_deallocate;
    mach_port_insert_right; __mach_port_insert_right;
    mach_port_allocate_name; __mach_port_allocate_name;
    thread_depress_abort; __thread_depress_abort;

    # Placeholders for the Hurd libthreads implementation.
    cthread_getspecific; cthread_keycreate; cthread_setspecific;
    __libc_getspecific;

    # Function versions of Mach macros.
    __mutex_init; __mutex_trylock;
    __mutex_lock; __mutex_unlock;
    __mutex_lock_solid; __mutex_unlock_solid;
  }
}