linux-kernel - [PATCH 09/11] tools lib traceevent: Add alias field to struct format

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Date:	Fri, 20 Feb 2015 23:17:06 +0100
From:	Jiri Olsa <jolsa@...nel.org>
To:	linux-kernel@...r.kernel.org
Cc:	Jiri Olsa <jolsa@...nel.org>, Wang Nan <wangnan0@...wei.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Namhyung Kim <namhyung@...il.com>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	Tom Zanussi <tzanussi@...il.com>
Subject: [PATCH 09/11] tools lib traceevent: Add alias field to struct format_field

Introduce an alias field to 'struct format_field' to be able
to use alternative name for the field.

This will be handy when converting data into CTF, where each
field within event needs to have a unique name (while this
is not required for tracepoint). Converter can easily assign
unique name into the format_field struct.

Suggested-by: Steven Rostedt <rostedt@...dmis.org>
Link: http://marc.info/?l=linux-kernel&m=142263154901362&w=2
Cc: Wang Nan <wangnan0@...wei.com>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: David Ahern <dsahern@...il.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Jiri Olsa <jolsa@...nel.org>
Cc: Namhyung Kim <namhyung@...il.com>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc: Tom Zanussi <tzanussi@...il.com>
Signed-off-by: Jiri Olsa <jolsa@...nel.org>
---
 tools/lib/traceevent/event-parse.c | 1 +
 tools/lib/traceevent/event-parse.h | 1 +
 2 files changed, 2 insertions(+)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index afe20ed9fac8..b35664cc1edc 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -6236,6 +6236,7 @@ static void free_format_fields(struct format_field *field)
 		next = field->next;
 		free(field->type);
 		free(field->name);
+		free(field->alias);
 		free(field);
 		field = next;
 	}
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 5b4efc062320..8490a4afffa2 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -187,6 +187,7 @@ struct format_field {
 	struct event_format	*event;
 	char			*type;
 	char			*name;
+	char			*alias;
 	int			offset;
 	int			size;
 	unsigned int		arraylen;
-- 
1.9.3

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