Rockchip GDB Over ADB 开发指南

1. 概述

文档主要围绕GDB Over ADB的使用展开，先介绍Buildroot配置，包括使能gdb主机程序、配置gdbserver程序以及编译buildroot包带调试信息的方法。接着详细说明启动GDB over ADB的步骤，涵盖配置ADB端口转发、启动GDB Server程序以及使用GDB客户端调试等关键环节，并给出具体的操作示例和命令。这份文档为技术支持工程师和软件开发工程师提供了使用GDB Over ADB进行调试的清晰指引，是相关开发调试工作的重要参考资料。

2. Buildroot配置

配置使能 gdb 主机程序：

3. 启动 GDB over ADB

  1. 配置 ADB 端口转发

adb forward tcp:1337 tcp:1337

  1. 启动 GDB Server 程序 在 adb shell 或者串口控制台执行：

gdbserver :1337 --attach COM PID # COM是要执行的程序完整目录和参数，PID是进程ID
# 或者
gdbserver :1337 COM
# 例如
gdbserver :1337 /bin/busybox ls
Process /bin/busybox created; pid = 633
Listening on port 1337
Remote debugging from host 127.0.0.1
Remote side has terminated connection.  GDBserver will reopen the connection.
Listening on port 1337
Remote debugging from host 127.0.0.1
bin                 lib32               proc                tmp
busybox.config      linuxrc             root                udisk
config              lost+found          run                 userdata
data                media               sbin                usr
dev                 misc                sdcard              var
etc                 mnt                 sys                 
init                oem                 system              
lib                 opt                 timestamp           

Child exited with status 0

  1. GDB 客户端调试

$ ./buildroot/output/rockchip_puma/host/bin/arm-buildroot-linux-gnueabihf-gdb
GNU gdb (GDB) 8.1.1
Copyright (C) 2018 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 "--host=x86_64-pc-linux-gnu --target=arm-buildroot-linux-gnueabihf".
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".
(gdb) set sysroot /work/linux/rk1808/buildroot/output/rockchip_puma/staging/
warning: .dynamic section for
"/work/linux/rk1808/buildroot/output/rockchip_puma/staging/lib/ld-linux-armhf.so.3" is not at the expected address (wrong library or version mismatch?)
Reading symbols from /work/linux/rk1808/buildroot/output/rockchip_puma/staging/lib/ld-linux-armhf.so.3...done.
Reading symbols from /work/linux/rk1808/buildroot/output/rockchip_puma/staging/lib/libc.so.6...done.
(gdb) target remote :1337
Remote debugging using :1337
Reading /bin/busybox from remote target...
warning: File transfers from remote targets can be slow. Use "set sysroot" to access files locally instead.
Reading /bin/busybox from remote target...
Reading symbols from target:/bin/busybox...(no debugging symbols found)...done.
Reading /lib/ld-linux-armhf.so.3 from remote target...
Reading /lib/ld-linux-armhf.so.3 from remote target...
Reading symbols from target:/lib/ld-linux-armhf.so.3...(no debugging symbols found)...done.
0xf72fcbc0 in _start () from target:/lib/ld-linux-armhf.so.3