WARNING: Setting this environment variable may significantly
affect application timings.
+`LTTNG_UST_ABORT_ON_CRITICAL`::
+ If set, abort the instrumented application on a critical error message.
+
`LTTNG_UST_CLOCK_PLUGIN`::
Path to the shared object which acts as the clock override plugin.
An example of such a plugin can be found in the LTTng-UST