如何在Ubuntu中的eclipse中以root身份调试应用程序？ [英] how to debug application as root in eclipse in Ubuntu?

问题描述

我正在使用libpcap编程应用程序。当我在普通模式下调试应用程序时，pcap无法获取网络设备。似乎我必须以root身份调试应用程序。
如何在根目录中调试应用程序？我有root密码
我认为eclipse有一个可以为调试应用程序添加root的选项，但是我不知道如何做。
请帮忙。

解决方案

1. 让您的用户运行 gdb 作为root用户，而不需要任何
   密码：
   
   sudo visudo
   
   在所有其他规则之后添加以下行：
   
   < youruser> ALL =（root）NOPASSWD：/ usr / bin / gdb


2. 在 eclipse 以root身份运行gdb
   
   eg在运行>调试配置> C / C ++应用程序> YourProject Debug：
   
   更改Debugger> Main> GDB调试器从 gdb 到 sudo -u< youruser> gdb

更新（和警告！）：

他的评论中指出，这个答案应该会出现警告：

使用户可以使用 sudo for gdb 像我的答案中所建议的实际上给予他/她的管理员权限，这在许多情况下可能是不利的副作用。因此，我认为在不假定用户会试图伤害系统的环境中（例如，您自己的个人计算机或虚拟机），答案是适当的。

一个多（不可信）的用户环境，我认为使用 unix'文件功能，以启用 gdb 来调试应用程序，而无需管理员权限

I'm programming application using libpcap. when I debug the application in normal mode, pcap cannot get the network device. it seems that I have to debug the application in root. How can I debug the application in root? I have the root password. I think eclipse has such an option that can add root for the debugging application,but I don't know how to do it. please help.

解决方案

1. Enable your user to run gdb as root without being asked for any password:
   sudo visudo
   Add the following line after all other rules:
   <youruser> ALL=(root) NOPASSWD:/usr/bin/gdb
2. Create or modify a debug configuration in eclipse to run gdb as root
   e.g. in Run > Debug Configurations > C/C++ Application > YourProject Debug:
   change Debugger > Main > GDB debugger from gdb to sudo -u <youruser> gdb

Update (and warning!):

In his comment nategoose pointed out that this answer should come with a warning:

Enabling a user to use sudo for gdb like suggested in my answer in fact gives admin privileges to him/her which in many cases might be an undesired side effect. I therefore consider the answer appropriate in an environment where it's not assumed that the user would try to harm the system (e.g. it's your own personal computer or a virtual machine)

For a multi-(non-trusted)-user environment I think it might be a better idead to utilize unix' file capabilities to enable gdb to debug an application without the need of admin privileges

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