lttng-event-rule(7)
===================
-:revdate: 3 May 2021
+:revdate: 12 May 2021
NAME
[verse]
option:--domain=**kernel** option:--type=(**kprobe** | **uprobe**) option:--location='LOC'
-pass:[[]option:--event-name='EVENTNAME'] [option:--filter='EXPR']
+pass:[[]option:--event-name='EVENTNAME']
Specify an event rule to match user space tracepoint events:
condition of an event rule if the option:--filter='EXPR' option is
missing or if 'EXPR' is _true_.
+This condition is only meaningful for the LTTng tracepoint and Linux
+system call instrumentation point types: it's always satisfied for other
+types.
+
'EXPR' can contain references to the payload fields of{nbsp}__E__ and
to the current context fields.
option:-f 'EXPR', option:--filter='EXPR'::
Only match events of which 'EXPR', which can contain references to
event payload and current context fields, is _true_.
++
+This option is only available with the following options:
++
+* option:--type=++tracepoint++
+* option:--type=++syscall++
+* option:--type=++syscall:entry++
+* option:--type=++syscall:exit++
+* option:--type=++syscall:entry+exit++
include::common-footer.txt[]