X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=doc%2Fman%2Flttng.1;h=089d87fa09861188d8e38551b1c4fde7b54829cf;hp=a74750e08cadcf2322463b4f04a4d2e95bbc2883;hb=9bd578f50a1e2438c40ca10789ca90d63c8f8829;hpb=a3c5b53406bffcfa1f13868eb903f3adf6b8e518

diff --git a/doc/man/lttng.1 b/doc/man/lttng.1
index a74750e08..089d87fa0 100644
--- a/doc/man/lttng.1
+++ b/doc/man/lttng.1
@@ -1,4 +1,4 @@
-.TH "LTTNG" "1" "February 9, 2012" "" ""
+.TH "LTTNG" "1" "July 17, 2012" "" ""
 
 .SH "NAME"
 lttng \(em LTTng 2.0 tracer control command line tool
@@ -340,6 +340,29 @@ file.
         Enabling syscalls tracing (kernel tracer), you will not be able to disable them
         with disable-event. This is a known limitation. You can disable the entire
         channel to do the trick.
+
+\-\-filter 'expression'
+	Set a filter on a newly enabled event.
+	Filter expression on event fields, event recording
+	depends on evaluation. Only specify on first activation
+	of a given event within a session. Filter only allowed
+	when enabling events within a session before tracing is
+	started. If the filter fails to link with the event
+	within the traced domain, the event will be discarded.
+	Currently, filter is only implemented for the user-space 
+	tracer.
+	Expression examples:
+
+	'intfield > 500 && intfield < 503'
+	'(stringfield == "test" || intfield != 10) && intfield > 33'
+	'doublefield > 1.1 && intfield < 5.3'
+
+	Wildcards are allowed at the end of strings:
+	'seqfield1 == "te*"'
+	In string literals, the escape character is a '\\'.
+	Use '\\*' for the '*' character, and '\\\\' for the
+	'\\' character.
+
 .fi
 
 .IP "\fBdisable-channel\fP NAME[,NAME2,...] [\-k|\-u] [OPTIONS]"
@@ -647,6 +670,9 @@ No UST consumer detected
 
 .IP "99"
 No Kernel consumer detected
+
+.IP "100"
+Event already enabled with different loglevel
 .PP
 .SH "ENVIRONMENT VARIABLES"