libc {
  GLIBC_2.0 {
    _sys_errlist; sys_errlist; _sys_nerr; sys_nerr;

    # Exception handling support functions from libgcc
    __register_frame; __register_frame_table; __deregister_frame;
    __frame_state_for; __register_frame_info_table;

    # Needed by gcc:
    _flush_cache;

    # c*
    cachectl; cacheflush;

    # s*
    sysmips;
  }
  GLIBC_2.2 {
    _sys_errlist; sys_errlist; _sys_nerr; sys_nerr;

    # _*
    _test_and_set;
  }
  GLIBC_2.3.3 {
    # Changed PTHREAD_STACK_MIN.
    pthread_attr_setstack;
    pthread_attr_setstacksize;
  }
  GLIBC_PRIVATE {
    # nptl/pthread_cond_timedwait.c uses INTERNAL_VSYSCALL(clock_gettime).
    __vdso_clock_gettime;
  }
}