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

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Message-Id: <1422614585-23411-10-git-send-email-jolsa@kernel.org>
Date:	Fri, 30 Jan 2015 11:43:03 +0100
From:	Jiri Olsa <jolsa@...nel.org>
To:	linux-kernel@...r.kernel.org
Cc:	Wang Nan <wangnan0@...wei.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Jiri Olsa <jolsa@...nel.org>,
	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 priv field to struct format_field

From: Wang Nan <wangnan0@...wei.com>

Introduce a priv field to 'struct format_field' for futher expansion.

(In https://lkml.org/lkml/2015/1/21/383 , Jiri Olsa gives a suggestion
 about changing lib traceevent to solve a bug of perf-convert-to-ctf,
 which is related to duplicated field names. I think his suggestion
 should be something like this patch. )

Signed-off-by: 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 | 2 ++
 tools/lib/traceevent/event-parse.h | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index afe20ed9fac8..5ed1ad1461c7 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -6237,6 +6237,8 @@ static void free_format_fields(struct format_field *field)
 		free(field->type);
 		free(field->name);
 		free(field);
+		if (field->destroy_priv)
+			field->destroy_priv(field);
 		field = next;
 	}
 }
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 7a3873ff9a4f..928d801444ab 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -190,6 +190,8 @@ struct format_field {
 	unsigned int		arraylen;
 	unsigned int		elementsize;
 	unsigned long		flags;
+	void			*priv;
+	void 			(*destroy_priv)(struct format_field *);
 };
 
 struct format {
-- 
1.9.3

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