Kprobe/jprobe use

The Kprobes or Jprobes tool is used when you want to get information about a kernel module in real time, or if you want to change the data within the kernel module.

Jprobes is simpler, and it's easy to inject your own code before a function call to get or change the parameters of a function.

Examples of Use methods:

1. View the function you want to inject by cat/proc/kallsyms, and if not, explain that the function is not exported and is not available for this method.

2. Continue tomorrow

https://www.ibm.com/developerworks/cn/linux/l-cn-systemtap1/

Http://blog.sina.com.cn/s/blog_71d4915701011tys.html

Kprobe/jprobe use