Linux kernel Analysis Job 3: Trace analysis of the boot process of the Linux kernel

Kernel Source Directory

1, Arch: recorded x86 focus on

2. Init: Start_kernel in MAIN.C under directory is the starting point of the boot kernel

3. IPC: Directory of inter-process communication

Experiment

Open the shell with a virtual machine in the lab building

CD linuxkernel/

Qemu-kernel LINUX-3.18.6/ARCH/X86/BOOT/BZIMAGE-INITRD rootfs.img

Use gdb Trace Debug Kernel

qemu -kernel linux-3.18 . 6 /arch/x86/boot/bzImage -initrd rootfs.img  - s  -S  #

Load Symbol table

Set breakpoints

Summary:understanding of the "Linux system startup process"

The Start_kernel in MAIN.C under the Init directory is the starting point for booting the kernel. Start of process Init in Strat_kernel

Li Hai Empty original works reprint please indicate the source "Linux kernel Analysis" MOOC course http://mooc.study.163.com/course/USTC-1000029000

Linux kernel Analysis Job 3: Trace analysis of the boot process of the Linux kernel