第一篇文章，所以我为可能的低质量解释道歉。
I was trying to write a loadable kernel module that does nothing but intercept syscalls to SYS_open, print the arguments to KERN_INFO and then forward the arguments to the real syscall. The forwarding part seems to be working just fine, but I'm having issues with the printing, arguments seem to be broken, from the syscall interceptor function's perspective.
Following are the pointer to the real open syscall as well as the interceptor definition.
asmlinkage int (*real_open) (const char __user …