tools lib traceevent: Show contents (in hex) of data of unrecognized type records

When a record has an unrecognized type, an error message is reported,
but it would also be helpful to see the contents of that record. At
least show what it is in hex, instead of just showing a blank line.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/20180112004822.542204577@goodmis.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 8 insertions, 2 deletions

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 344a034a8fbc..e5f2acbb70cc 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -5566,8 +5566,14 @@ void pevent_print_event(struct pevent *pevent, struct trace_seq *s,
 
         event = pevent_find_event_by_record(pevent, record);
         if (!event) {
-                do_warning("ug! no event found for type %d",
-                           trace_parse_common_type(pevent, record->data));
+                int i;
+                int type = trace_parse_common_type(pevent, record->data);
+
+                do_warning("ug! no event found for type %d", type);
+                trace_seq_printf(s, "[UNKNOWN TYPE %d]", type);
+                for (i = 0; i < record->size; i++)
+                        trace_seq_printf(s, " %02x",
+                                         ((unsigned char *)record->data)[i]);
                 return;
         }