cpc
Probe Arguments
The arguments to cpc
probes are the following:
-
arg0
-
The program counter (PC) in the kernel at the time that the probe fired, or 0 if the current process was not executing in the kernel at the time that the probe fired
-
arg1
-
The PC in the user-level process at the time that the probe fired, or 0 if the current process was executing at the kernel at the time that the probe fired
As the descriptions imply, if arg0
is non-zero then arg1
is zero; if arg0
is zero then arg1
is non-zero.