There is c code errors for using performance counter IP, but I can not debug this problem.

Hi,

the code looks fine only you don't have to use these two headers:

#include "sys/alt_stdio.h"

#include "stdio.h"

The error is because the tools failed to make the files, I encourage you to follow the following steps to fix this error:

https://www.intel.com/content/altera-www/global/en_us/index/support/support-resources/knowledge-base/embedded/2019/error---makefile-is-not-up-to-date-.html

Regards,