linux-kernel - [RFC][PATCH 2/9] perf trace: Add subsystem string to struct event

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Date:	Tue,  6 Oct 2009 01:09:51 -0500
From:	Tom Zanussi <tzanussi@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...e.hu, fweisbec@...il.com, rostedt@...dmis.org,
	lizf@...fujitsu.com, hch@...radead.org
Subject: [RFC][PATCH 2/9] perf trace: Add subsystem string to struct event

Needed to fully qualify event names for event stream processing.

Signed-off-by: Tom Zanussi <tzanussi@...il.com>
---
 tools/perf/util/trace-event-parse.c |    4 +++-
 tools/perf/util/trace-event.h       |    3 ++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
index be8412d..de3fc8b 100644
--- a/tools/perf/util/trace-event-parse.c
+++ b/tools/perf/util/trace-event-parse.c
@@ -2950,7 +2950,7 @@ int parse_ftrace_file(char *buf, unsigned long size)
 	return 0;
 }
 
-int parse_event_file(char *buf, unsigned long size, char *system__unused __unused)
+int parse_event_file(char *buf, unsigned long size, char *sys)
 {
 	struct event *event;
 	int ret;
@@ -2977,6 +2977,8 @@ int parse_event_file(char *buf, unsigned long size, char *system__unused __unuse
 	if (ret < 0)
 		die("failed to read event print fmt");
 
+	event->system = strdup(sys);
+
 #define PRINT_ARGS 0
 	if (PRINT_ARGS && event->print_fmt.args)
 		print_args(event->print_fmt.args);
diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h
index 00b440d..cb92978 100644
--- a/tools/perf/util/trace-event.h
+++ b/tools/perf/util/trace-event.h
@@ -133,6 +133,7 @@ struct event {
 	int			flags;
 	struct format		format;
 	struct print_fmt	print_fmt;
+	char			*system;
 };
 
 enum {
@@ -167,7 +168,7 @@ void print_funcs(void);
 void print_printk(void);
 
 int parse_ftrace_file(char *buf, unsigned long size);
-int parse_event_file(char *buf, unsigned long size, char *system);
+int parse_event_file(char *buf, unsigned long size, char *sys);
 void print_event(int cpu, void *data, int size, unsigned long long nsecs,
 		  char *comm);
 
-- 
1.6.4.GIT

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