Get things to work with new gcc

Not the best way, disabling warnings, but the only one that's going to
work with 4.9

Signed-off-by: Ronald G. Minnich <rminnich@google.com>
Get oprofile working more correctly.

Do this:
echo opstart > /prof/kpctl
echo 8 > /prof/kpoprofile
echo 8 > /prof/kpoprofile
echo 8 > /prof/kpoprofile
echo opstop > /prof/kpctl
cat /prof/kpoprofile

This will return data in oprofile format. Shame that oprofile is obsolete,
this was so easy.

Signed-off-by: Ronald G. Minnich <rminnich@google.com>