问题描述
在 Qt creator 中调试 C++ 代码时出现以下错误
While debugging C++ code in Qt creator I get the following error
ptrace: Operation not permitted.
Could not attach to the process. Make sure no other debugger traces this process.
Check the settings of
/proc/sys/kernel/yama/ptrace_scope
For more details, see /etc/sysctl.d/10-ptrace.conf
这里找到了一个临时解决方案:尝试调试时收到错误在 QtProject 中
Here a temporary solution is found: Receiving error while trying to debug in QtProject
临时解决方案(重启后无效):
temporary solution (won't survive a reboot):
echo 0 |须藤三通/proc/sys/kernel/yama/ptrace_scope
但是每次启动PC使用Qt时，都很难在终端中运行相同的代码.
But it is difficult to run the same code in terminal every time when I start my PC to use Qt.
What is the permanent solution for this?
推荐答案
如果运行 Ubuntu，
If running Ubuntu,
启用所需的 ptrace 内核设置(由 qtcreator 提示)的推荐方法是编辑/etc/sysctl.d/10-ptrace.conf
The recommended way to enable the needed ptrace kernel setting (hinted by qtcreator) is to edit /etc/sysctl.d/10-ptrace.conf
sudo vim /etc/sysctl.d/10-ptrace.conf
然后改变
kernel.yama.ptrace_scope = 1
到
kernel.yama.ptrace_scope = 0
保存，
然后申请:
$ sudo sysctl --system -a -p|grep yama
kernel.yama.ptrace_scope = 0
运行
man sysctl
了解更多信息.
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