如何调试应用程序的根在Eclipse在Ubuntu？ [英] how to debug application as root in eclipse in Ubuntu?

问题描述

我使用libpcap的编程。当我调试在正常模式下的应用，PCAP不能得到网络设备。看来，我必须调试根应用程序。
如何调试根应用？我有root密码。
我认为日食具有可用于调试应用程序添加根这样的选择，但我不知道该怎么做。
请帮忙。

解决方案

1. 启用您的用户运行 GDB 作为root没有被要求为已任
   密码：结果
   须藤visudo命令结果
   添加以下行所有其他规则后：结果
   ＆LT; youruser＆GT; ALL =（根）NOPASSWD：在/ usr / bin中/ GDB


2. 创建或修改调试配置在蚀运行GDB作为root结果
   例如在运行>调试配置> C / C ++应用程序> YourProject调试：结果
   从更改 GDB 调试>首页> GDB调试器 sudo的-u＆LT; youruser＆GT; GDB

更新（和警告！）：

在他的评论中nategoose指出，这个答案应该有一个警告：

启用用户使用须藤为 GDB 就像我的回答提出的其实给了管理员权限给他/她的的，在许多情况下可能是不希望的副作用。因此，我认为答案相应的在它没有假设用户将试图损害系统的环境中（例如，它是你自己的个人计算机或虚拟机）

有关的多（非信任）用户环境，我想这可能是一个更好的idead利用 UNIX'文件的能力，使 GDB 来，而不需要管理员权限

调试应用程序

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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