Using kernel functions and macros in userspace

karimasif · 01-16-2008, 03:58 AM

Hi

Is there any way to call kernel functions and macros in user space program.

I am writing a simple program and compiling it through gcc, in which I want to calculate the CPU capability in MHz. For this, I want to use the "cpu_has_tsc" macro and barrier() macro. barrier() macro is present in asm/system.h.

Do I need to use the system call to go through this, if yes how?

ashok449 · 01-16-2008, 11:34 PM

Your right, you need to use system calls.

use function name with correct arguments along with headers and compile with related optimization levels.