[tip:perf/core] tools lib traceevent: Introduce trace_seq_do_fprintf function

From: tip-bot for Arnaldo Carvalho de Melo
Date: Wed Feb 18 2015 - 13:27:27 EST

Commit-ID: 402bb4e6ec6507ccbb2e556d7996bbc989db7f27
Gitweb: http://git.kernel.org/tip/402bb4e6ec6507ccbb2e556d7996bbc989db7f27
Author: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Tue, 3 Feb 2015 12:44:09 -0300
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Fri, 6 Feb 2015 11:46:37 +0100

tools lib traceevent: Introduce trace_seq_do_fprintf function

So that we can specify a FILE object where to direct the formatted

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-a49bhdrx8851f04hppn8bqxq@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
tools/lib/traceevent/event-parse.h | 2 ++
tools/lib/traceevent/trace-seq.c | 13 +++++++++----
2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 7a3873f..5b4efc0 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -22,6 +22,7 @@

#include <stdbool.h>
#include <stdarg.h>
+#include <stdio.h>
#include <regex.h>
#include <string.h>

@@ -91,6 +92,7 @@ extern int trace_seq_putc(struct trace_seq *s, unsigned char c);

extern void trace_seq_terminate(struct trace_seq *s);

+extern int trace_seq_do_fprintf(struct trace_seq *s, FILE *fp);
extern int trace_seq_do_printf(struct trace_seq *s);

diff --git a/tools/lib/traceevent/trace-seq.c b/tools/lib/traceevent/trace-seq.c
index ec3bd16..292dc9f 100644
--- a/tools/lib/traceevent/trace-seq.c
+++ b/tools/lib/traceevent/trace-seq.c
@@ -231,19 +231,24 @@ void trace_seq_terminate(struct trace_seq *s)
s->buffer[s->len] = 0;

-int trace_seq_do_printf(struct trace_seq *s)
+int trace_seq_do_fprintf(struct trace_seq *s, FILE *fp)

switch (s->state) {
- return printf("%.*s", s->len, s->buffer);
+ return fprintf(fp, "%.*s", s->len, s->buffer);
- puts("Usage of trace_seq after it was destroyed");
+ fprintf(fp, "%s\n", "Usage of trace_seq after it was destroyed");
- puts("Can't allocate trace_seq buffer memory");
+ fprintf(fp, "%s\n", "Can't allocate trace_seq buffer memory");
return -1;
+int trace_seq_do_printf(struct trace_seq *s)
+ return trace_seq_do_fprintf(s, stdout);
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