message: Export getrandom function
diff: @@ -6,7 +6,7 @@ pub const GRND_NONBLOCK: c_uint = 1;
  pub const GRND_RANDOM: c_uint = 2;
  #[no_mangle]
  -unsafe extern "C" fn getrandom(buf: *mut c_void, buflen: size_t, flags: c_uint) -> ssize_t {
  +pub unsafe extern "C" fn getrandom(buf: *mut c_void, buflen: size_t, flags: c_uint) -> ssize_t {
  Sys::getrandom(slice::from_raw_parts_mut(
  buf as *mut u8,
  buflen as usize
  