title: Trace Functions called in Network Socket Code
name: socket-trace.stp
version: 1.0
author: anonymous
keywords: network socket
subsystem: network
status: production
exit: user-controlled
output: trace
scope: system-wide
description: The script instruments each of the functions in the Linux kernel's net/socket.c file. The script prints out trace data. The first element of a line is time delta in microseconds from the previous entry. This is followed by the command name and the PID. The "->" and "<-" indicates function entry and function exit, respectively. The last element of the line is the function name.
test_check: stap -p4 socket-trace.stp
test_installcheck: stap socket-trace.stp -c "sleep 0.2"