function::log.3stap - Man Page
Send a line to the common trace buffer
The formatted message string
This function logs data. log sends the message immediately to staprun and to the bulk transport (relayfs) if it is being used. If the last character given is not a newline, then one is added. This function is not as efficient as printf and should be used only for urgent messages.
April 2023 SystemTap Tapset Reference Logging Tapset