1 files changed, 11 insertions, 1 deletions

diff --git a/trace-filter.c b/trace-filter.c
index e78fe4e..f8d2271 100644
--- a/trace-filter.c
+++ b/trace-filter.c
@@ -34,7 +34,7 @@
 #define DIALOG_WIDTH    400
 #define DIALOG_HEIGHT   600
 
-#define TEXT_DIALOG_WIDTH       400
+#define TEXT_DIALOG_WIDTH       450
 #define TEXT_DIALOG_HEIGHT      400
 
 int str_cmp(const void *a, const void *b)
@@ -382,6 +382,16 @@ void trace_adv_filter_dialog(struct tracecmd_input *handle,
         gtk_container_add(GTK_CONTAINER(scrollwin), view);
         gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), scrollwin, TRUE, TRUE, 0);
 
+        label = gtk_label_new(" <event>[,<event>] : [!][(]<field><op><val>[)]"
+                              "[&&/|| [(]<field><op><val>[)]]\n\n"
+                              "Examples:\n"
+                              "   sched_switch : next_prio < 100 && (prev_prio > 100"
+                              "&& prev_pid != 0)\n"
+                              "   irq.* : irq != 38\n"
+                              "   .* : common_pid == 1234");
+        gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), label, TRUE, TRUE, 0);
+        gtk_widget_show(label);
+
         hbox = gtk_hbox_new(FALSE, 0);
         gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox, TRUE, TRUE, 0);
         gtk_widget_show(hbox);