手工启用debuginfod

1. 安装debuginfod

2. 设置环境变量

   geduer@gdk8:~$ export DEBUGINFOD_URLS="https://debuginfod.ubuntu.com"
   geduer@gdk8:~$ set debuginfod enabled on

3. gdb调试时选yes

This GDB supports auto-downloading debuginfo from the following URLs:
https://debuginfod.ubuntu.com
Enable debuginfod for this session? (y or [n]) y
Debuginfod has been enabled.