Add usage for --exclude option

[lttng-tools.git] / src / bin / lttng / commands / enable_events.c

diff --git a/src/bin/lttng/commands/enable_events.c b/src/bin/lttng/commands/enable_events.c
index 24edcacc52b450174fcbdabbd91375ba864b3365..6ea3c919f1dc8806cb2de0e4515d81a0e06d34f2 100644 (file)
--- a/src/bin/lttng/commands/enable_events.c
+++ b/src/bin/lttng/commands/enable_events.c
@@ -195,6 +195,12 @@ static void usage(FILE *ofp)
        fprintf(ofp, "                           '$ctx.procname == \"demo*\"'\n");
        fprintf(ofp, "                           '$ctx.vpid >= 4433 && $ctx.vpid < 4455'\n");
        fprintf(ofp, "                           '$ctx.vtid == 1234'\n");
+       fprintf(ofp, "  -x, --exclude LIST\n");
+       fprintf(ofp, "                           Add exclusions to UST tracepoints:\n");
+       fprintf(ofp, "                           Events that match any of the items\n");
+       fprintf(ofp, "                           in the comma-separated LIST are not\n");
+       fprintf(ofp, "                           enabled, even if they match a wildcard\n");
+       fprintf(ofp, "                           definition of the event.\n");
        fprintf(ofp, "\n");
 }