Display of .statement(NUM) for 64 bits

[Wenji Huang]

Hi,

This may be not an error, just about output for .statement(NUM) on 64 
bits machine.

It is like:
$ stap -u -p2 -e 'probe kernel.statement(0xffffffff8040beb0) {}'
# probes
kernel.statement(-2143240528) /* pc=0x202eb0 */ /* <- 
kernel.statement(-2143240528) */

The minus is outputted and also kept in C file. Seems hex is better.

Regards,
Wenji