Trace the process of the start of Linux

Try it on console interface of Shiyanlou failed with following error infor:

Could not initialize SDL (No available video device) - existing

Try it on GUI of Shiyanlou again

start Linux kernel with the following command:

qemu -kernel linux-3.18.6/arch/x86/boot/bzImage -initrd roofs.img -S -s

open another shell to run command gdb and run the following gdb command

• （gdb）file linux-3.18.6/vmlinux # 在gdb界面中targe remote之前加载符号表
• （gdb）target remote:1234 # 建立gdb和gdbserver之间的连接,按c 让qemu上的Linux继续运行
• （gdb）break start_kernel # 断点的设置可以在target remote之前，也可以在之后
• (dbg) c to start the kernel
• (dbg) n to run the next instruction

Here is the screenshot of the experiment

Michael He

原创作品转载请注明出处 : 《Linux内核分析》MOOC课程http://mooc.study.163.com/course/USTC-1000029000