$ arm-linux-nm --size-sort vmlinux | grep -v 00000 | grep " [bBdD] " 00001000 B con_buf 00001000 B pidhash 00001000 b pty_state 00001000 b swap_buffer 00001578 B kstat 00001648 D contig_page_data 00001fe0 b ro_bits 00002000 D init_task_union 00004000 b log_buf 000043f0 B fb_display 00008780 B blk_dev