gdb+gdbserver 是调试目标板的常用方法. 看了网上的一些资料，加上我自己的一些体会， 写个完整的记录吧：我的环境如下：HOST 192.168.0.33 Target: 192.168.0.34 NFS共享目录: mount -t nfs -o nolock /home/itlanger/work /mnt
编译arm-gdb:下载gdb源代码:
$ cd downloads
$ wget -t 0 -w 30 -c http://ftp.gnu.org/gnu/gdb/gdb-6.6.tar.gztar zxvf gdb-6.6.tar.gzcd gdb-6.6./configure –target=arm-linux –prefix=/usr/local/arm-gdb -v
makesudo make installexport PATH=$PATH:/usr/local/arm-gdb编译arm-gdb-servercd ~/downloads/gdb-6.6/gdb/gdbserver./configure –target=arm-linux –host=arm-linuxmake CC=/usr/local/arm/3.4.1/bin/arm-linux-gcc ##这里是交叉编译器的路径cp gdbserver ~/work ##gdbserver是编译生成的export PATH=$PATH:/usr/local/arm-gdb/bin (最好加到.bashrc中)
拷贝libthread库(这一步不做的话，运行gdbserver会出错!)$ cd /usr/local/arm/3.4.1/arm-linux/lib$ ls -l libthread_db*-rwxr-xr-x 1 2619 man 29151 2004-07-28 23:08 libthread_db-1.0.solrwxrwxrwx 1 2619 man 17 2008-05-25 12:00 libthread_db.so -> libthread_db.so.1lrwxrwxrwx 1 2619 man 19 2008-05-25 12:00 libthread_db.so.1 -> libthread_db-1.0.so
$ cp libthread_db-1.0.so ~/work
minicom下:# cd /lib/# cp /mnt/libthread_db-1.0.so /lib/# ln -s libthread_db-1.0.so libthread_db.so.1# ln -s libthread_db-1.0.so libthread_db.so测试写一个程序， 用arm-linux-gcc -g 编译， 放到work目录下, (我的为third)
minicom下:
cd /mnt
./gdbserver 192.168.0.33:6666 third Process third created; pid = 356Listening on port 6666终端下:export PATH=$PATH:/usr/local/arm-gdb/bincd ~/workarm-linux-gdb thirdGNU gdb 6.6Copyright (C) 2006 Free Software Foundation, Inc.GDB is free software, covered by the GNU General Public License, and you arewelcome to change it and/or distribute copies of it under certain conditions.Type "show copying" to see the conditions.There is absolutely no warranty for GDB. Type "show warranty" for details.This GDB was configured as "–host=i686-pc-linux-gnu –target=arm-linux"…(gdb)
(gdb) target remote 192.168.0.34:2345 ##(连接目标)Remote debugging using 192.168.0.34:23450x40000dd0 in ?? () from /lib/ld-linux.so.2现在可以通过l, b 设置断点了运行: 用命令c ##记住这里不是用run, 因为程序已在Target Board上面由gdbserver启动了。结果输出是在Target Board端
这样就可以用emacs方便地远程调试了。 M-x gdba ##(我已经绑定到F10了)
Run gdba (like this): arm-linux-gdb -annotate=3 third
他们的快乐像贪玩的小孩，游荡到天光却还不肯回来。
