DOKK / manpages / debian 10 / systemtap-doc / function::ftrace.3stap.en
FUNCTION::FTRACE(3stap) Logging Tapset FUNCTION::FTRACE(3stap)

function::ftrace - Send a message to the ftrace ring-buffer


ftrace(msg:string)

msg

The formatted message string

If the ftrace ring-buffer is configured & available, see /debugfs/tracing/trace for the message. Otherwise, the message may be quietly dropped. An implicit end-of-line is added.

tapset::logging(3stap)

October 2018 SystemTap Tapset Reference