gdb远程调试，貌似是提示架构不一致

[huahai111]

连接上后，提示是图上的内容，没有办法调试，求师傅看看

[huahai111]

[huahai111]

gdb-multiarch busybox GNU gdb (Debian 10.1-2) 10.1.90.20210103-git Copyright (C) 2021 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: https://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 busybox... (No debugging symbols found in busybox) (gdb) target remote 192.168.0.1:4444 Remote debugging using 192.168.0.1:4444 warning: Selected architecture i386:x86-64 is not compatible with reported target architecture mips warning: Architecture rejected target-supplied description Reply contains invalid hex digit 59 (gdb) file busybox warning: Selected architecture i386:x86-64 is not compatible with reported target architecture mips Architecture of file not recognized. (gdb)

nc 192.168.0.1 23 �������� ~ # ./gdbserver-7.12-mipsel-mips32rel2-v1 192.168.0.1:4444 ./bin/busybox ./gdbserver-7.12-mipsel-mips32rel2-v1 192.168.0.1:4444 ./bin/busybox Process ./bin/busybox created; pid = 1683 Listening on port 4444 Remote debugging from host 192.168.0.2 Remote side has terminated connection. GDBserver will reopen the connection. Listening on port 4444 Remote debugging from host 192.168.0.2 Remote side has terminated connection. GDBserver will reopen the connection. Listening on port 4444 Remote debugging from host 192.168.0.2 Remote side has terminated connection. GDBserver will reopen the connection. Listening on port 4444

这是文字版的内容

[liyansong2018]

请注意看你这一条日志

(gdb) target remote 192.168.0.1:4444
Remote debugging using 192.168.0.1:4444
warning: Selected architecture i386:x86-64 is not compatible with reported target architecture mips

这是由于你在使用gdb-multiarch的时候，后面直接跟了busybox，默认是Linux发行版，而不是固件中的busybox。所以宿主机即Linux上，也需要保留一份你需要调试的固件中的二进制。

gdb-multiarch 不能直接加载远程server上的符号表，所以需要在客户端使用如下命令

gdb-multiarch +目标二进制（而非宿主机上的二进制）

[huahai111]

好的，感谢师傅

[huahai111]

师傅，那这个以后我调试东西，必须要保留副本么。通过tftp传输到虚拟机或者，直接解压固件拷贝出来到虚拟机么

[liyansong2018]

嗯，既然是调试，我相信你也需要将待调试的二进制通过IDA等软件反编译，这些都是常规操作

[huahai111]

好的好的，谢谢师傅

[liyansong2018]

关于调试，请参考 固件远程登陆及二进制调试