meson: check for linux/user_events.h
meson: generate pkg-config file
meson: mark the library as installable
libuserevents is a simple library for interacting with the user_events interface in Linux >= 6.4. It makes registering and emitting events to the kernel's tracing subsystem easier.
Documentation for libuserevents can be found inline in userevents.h. Documentation for Linux's
user_events interface can be found in-tree at Documentation/trace/user_events.rst
or online at
https://www.kernel.org/doc/html/latest/trace/user_events.html.