umod
(), usym
(), and uaddr
() Functions
The umod
(), usym
(), and uaddr
() actions store two 64-bit values. The first value is the PID of the process and the second value is a user address within the process.
Typically, the second value is the address that was passed to the action. However, if the action was used as a key in an aggregation then the address may have been modified.
dtrd_action == DTRACEACT_UMOD dtrd_action == DTRACEACT_USYM dtrd_action == DTRACEACT_UADDR
Data Format for the umod
() Action