mapend = l->l_map_end | (_dl_pagesize - 1);
mapend = l->l_map_end | (GL(dl_pagesize) - 1);
      mapend = l->l_map_end | (_dl_pagesize - 1);      assert (mapend > mapstart);      /* Prefer gaps below the main executable, note that l ==	 _dl_loaded does not work for static binaries loading	 e.g. libnss_*.so.  */      if ((mapend >= high || l->l_type == lt_executable)	  && high >= mapstart)	high = mapstart;      else if (mapend >= low && low >= mapstart)	low = mapend;      else if (high >= mapend && mapstart >= low)	{	  if (high - mapend >= mapstart - low)	    low = mapend;	  else	    high = mapstart;	}