Re: system call library functions

It's relatively straightforward to make a function that calls the 
kernel getpid every time:

(mygetpid.s)
.globl _mygetpid
_mygetpid:
	li r0,20
	sc
	blr
	blr

(main.c)
#include <stdio.h>
int mygetpid();

int main(int argc, char *argv[]) {
	printf("%d\n", mygetpid());
	return 0;
}

There are two blrs because the kernel returns to either PC+4 or PC+8 
depending on whether there was an error.

Ronnie