to the entry and exit points of functions.
man:gcc(1) and man:clang(1) have an option named
-https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html[`-finstrument-functions`]
+https://gcc.gnu.org/onlinedocs/gcc/Instrumentation-Options.html[`-finstrument-functions`]
which generates instrumentation calls for entry and exit to functions.
The LTTng-UST function tracing helpers,
path:{liblttng-ust-cyg-profile.so} and
--
[role="term"]
----
-lttng create --output=/tmp/some-directory my-session
+lttng create my-session --output=/tmp/some-directory
----
--
--
[role="term"]
----
-lttng create --live my-session
+lttng create my-session --live
----
--
+
--
[role="term"]
----
-lttng create --snapshot my-session
+lttng create my-session --snapshot
----
--
+