c++ - 使用 gdbserver 远程调试 EV3 失败

Question

我正在为在基于 debian 的ev3dev上运行的 Lego EV3 编写 C++ 代码。为了编译它，我使用了一个带有 ev3dev 映像的 docker 容器。（与从 Windows 或 WSL 进行交叉编译相比，这是最好的工作方式）

为了调试我的代码，我想在 EV3 上创建一个 gdbserver，然后从我的笔记本电脑连接到它。因此，我将代码编译如下：

arm-linux-gnueabi-g++ -g -o app ./app.cpp

然后我将二进制文件复制到 EV3 并在其上启动了一个 gdbserver：

gdbserver :8000 ./app

并从我的笔记本电脑连接到它：

gdb ./app
(gdb) target remote 192.168.137.3:8000

但是，我无法继续调试，而且由于我在交叉编译和远程调试方面不是很有经验，我不知道如何解决这个问题。

这是我笔记本电脑上的控制台输出：

compiler@32a0a4440089:/src/EV3-testing/remote_debugger_test$ gdb ./app
GNU gdb (Debian 7.12-6) 7.12.0.20161007-git
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from ./app...done.
(gdb) target remote 192.168.137.3:8000
Remote debugging using 192.168.137.3:8000
warning: while parsing target description (at line 1): Target description specified unknown architecture "arm"
warning: Could not load XML target description; ignoring
Reading /lib/ld-linux.so.3 from remote target...
warning: File transfers from remote targets can be slow. Use "set sysroot" to access files locally instead.
warning: `target:/lib/ld-linux.so.3': Shared library architecture unknown is not compatible with target architecture i386.
Reading /lib/ld-linux.so.3 from remote target...
warning: `target:/lib/ld-linux.so.3': Shared library architecture unknown is not compatible with target architecture i386.
Reading symbols from target:/lib/ld-linux.so.3...Reading /lib/983c6fff2b6d7f46f59d77068be46be3852e81.debug from remote target...
Reading /lib/.debug/983c6fff2b6d7f46f59d77068be46be3852e81.debug from remote target...
(no debugging symbols found)...done.
0x00000000 in ?? ()
(gdb) b main
Breakpoint 1 at 0x400748: file ./app.cpp, line 18.
(gdb) c
Continuing.
Warning:
Cannot insert breakpoint 1: Remote connection closed

Command aborted.

这是 EV3 上的输出：

robot@ev3dev:~$ gdbserver :8000 ./app
Process ./app created; pid = 1737
Listening on port 8000
Remote debugging from host 192.168.137.1
client_loop: send disconnect: Connection reset

谢谢你的帮助！

标签： c++debugginggdbgdbserverev3