Switching off optimization for a specific function in gcc 4.2.2

Question

Is it possible to switch off optimization of a specific function? A friend of mine has the problem that the gcc optimization makes some (unknown to me) µ-controller-code not

Answer 1

I know this is an old post. The GCC page that OP gives actually says: To keep such calls from being optimized away, put asm (""); in the function. I guess this is an easy workaround. Just fine out this, hope it can helper other people like me.