bs linux code

#include <stdio.h>
#include <unistd.h>
#include <sys/syscall.h>

int main(int argc, int **argv) {
        int sysPID;
	pid_t userPID;

        sysPID = syscall(SYS_getpid);
	userPID = getpid();

        printf("\n syscall: %d", sysPID);
	printf(" usermode-API: %d\n", (int)userPID);

        return 0;
}