GDB Over ADB 使用指南

发布版本：1.0

作者邮箱：cody.xie@rock-chips.com

日期：2019.06

文件密级：内部资料

前言

概述

GDB Over ADB 使用指南。

读者对象

本文档（本指南）主要适用于以下工程师：

技术支持工程师

软件开发工程师

产品版本

修订记录

日期	版本	作者	修改说明
2019-06-18	V1.0	Cody Xie	初始版本

[TOC]

Buildroot 配置

配置使能 gdb 主机程序

menuconfig-1

配置 gdbserver 程序

menuconfig-2

这里选择 gdbserver 够用即可

menuconfig-3

配置编译 buildroot 包带调试信息，如果 buildroot 有配置"strip target binaries"，那么不影响最终打包到 target 的包，仅影响 staging 目录，相当于 android 的 symbol 目录和最终目录。

menuconfig-4

启动 GDB over ADB

配置 ADB 端口转发
```
adb forward tcp:1337 tcp:1337
```

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

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

Buildroot 配置​

启动 GDB over ADB​

Buildroot 配置

启动 GDB over ADB