[tip:perf/core] perf tools: Introduce event_format__fprintf method

[tip-bot for Arnaldo Carvalho de Melo]

Commit-ID:  aa1aac17a15cbf64236bd6f3b855262dcfb845c9
Gitweb:     http://git.kernel.org/tip/aa1aac17a15cbf64236bd6f3b855262dcfb845c9
Author:     Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Tue, 3 Feb 2015 12:46:58 -0300
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Fri, 6 Feb 2015 11:46:37 +0100

perf tools: Introduce event_format__fprintf method

The existing one, event_format__print() uses stdout unconditionally,
and 'perf trace' needs to use it to format into a file that may have
been set by the user, i.e. 'trace -o file.output'.

Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Don Zickus <dzickus@xxxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Mike Galbraith <efault@xxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-7l0mgm91hwg0bby00s5pse8r@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/util/trace-event-parse.c | 12 +++++++++---
 tools/perf/util/trace-event.h       |  3 +++
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
index c36636f..25d6c73 100644
--- a/tools/perf/util/trace-event-parse.c
+++ b/tools/perf/util/trace-event-parse.c
@@ -112,8 +112,8 @@ unsigned long long read_size(struct event_format *event, void *ptr, int size)
 	return pevent_read_number(event->pevent, ptr, size);
 }
 
-void event_format__print(struct event_format *event,
-			 int cpu, void *data, int size)
+void event_format__fprintf(struct event_format *event,
+			   int cpu, void *data, int size, FILE *fp)
 {
 	struct pevent_record record;
 	struct trace_seq s;
@@ -125,10 +125,16 @@ void event_format__print(struct event_format *event,
 
 	trace_seq_init(&s);
 	pevent_event_info(&s, event, &record);
-	trace_seq_do_printf(&s);
+	trace_seq_do_fprintf(&s, fp);
 	trace_seq_destroy(&s);
 }
 
+void event_format__print(struct event_format *event,
+			 int cpu, void *data, int size)
+{
+	return event_format__fprintf(event, cpu, data, size, stdout);
+}
+
 void parse_proc_kallsyms(struct pevent *pevent,
 			 char *file, unsigned int size __maybe_unused)
 {
diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h
index 52aaa19..356629a 100644
--- a/tools/perf/util/trace-event.h
+++ b/tools/perf/util/trace-event.h
@@ -23,6 +23,9 @@ trace_event__tp_format(const char *sys, const char *name);
 
 int bigendian(void);
 
+void event_format__fprintf(struct event_format *event,
+			   int cpu, void *data, int size, FILE *fp);
+
 void event_format__print(struct event_format *event,
 			 int cpu, void *data, int size);
 
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