perf tools: Add tracepoint support for parse_events_error

Allowing tracepoint events processing to report back error.

  $ perf record -e 'sched:krava' ls
  event syntax error: 'sched:krava'
                       \___ unknown tracepoint
  ...

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1429729824-13932-9-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index 486247739a39667bad5876cad36033f3765a322c..38a0f21fc43384705c76017b5da72fd64b22ff31 100644 (file)
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -388,7 +388,13 @@ PE_NAME ':' PE_NAME
        struct list_head *list;
 
        ALLOC_LIST(list);
-       ABORT_ON(parse_events_add_tracepoint(list, &data->idx, $1, $3));
+       if (parse_events_add_tracepoint(list, &data->idx, $1, $3)) {
+               struct parse_events_error *error = data->error;
+
+               error->idx = @1.first_column;
+               error->str = strdup("unknown tracepoint");
+               return -1;
+       }
        $$ = list;
 }