Compilation error in application program which has newly added system call

Rekha Murthy · 07-27-2014, 07:23 AM

Hello Sir,

In opensuse 2.6.31, I've written a system call in /kernel/sched.c ,it is successfully compiled.
And I've written a application program which call that system call,but the problem is when I compile it, I get a error message displaying "undefined reference ".

I want to know why this error is generated and how to solve it..?

Please help me to resolve this error.

business_kid · 07-27-2014, 10:15 AM

Either you have called an include or lib that was not included in the compile or

Your code is ambiguous(as C can be) and it is being interpreted another was. Time to read the warnings. Compile it with "warning = error" and see.