[tip:perf/core] perf tools: Add tracepoint support for parse_events_error

[tip-bot for Jiri Olsa <tipbot@zytor.com>]

Commit-ID:  492d977444734e03c0633a238f1431b3c66b3e97
Gitweb:     http://git.kernel.org/tip/492d977444734e03c0633a238f1431b3c66b3e97
Author:     Jiri Olsa <jolsa@kernel.org>
AuthorDate: Wed, 22 Apr 2015 21:10:23 +0200
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Wed, 29 Apr 2015 10:38:01 -0300

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>
---
 tools/perf/util/parse-events.y | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index 4862477..38a0f21 100644
--- 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;
 }