[PATCH 05/13] perf tools: Add comment explaining the repsep_snprintf function
From: Arnaldo Carvalho de Melo
Date: Mon Feb 15 2016 - 16:02:54 EST
From: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Wang Nan <wangnan0@xxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-4j67nvlfwbnkg85b969ewnkr@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/sort.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index de620f7f40f4..8b54ede7ec1f 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -28,7 +28,15 @@ int sort__has_socket = 0;
int sort__has_thread = 0;
enum sort_mode sort__mode = SORT_MODE__NORMAL;
-
+/*
+ * Replaces all occurrences of a char used with the:
+ *
+ * -t, --field-separator
+ *
+ * option, that uses a special separator character and don't pad with spaces,
+ * replacing all occurances of this separator in symbol names (and other
+ * output) with a '.' character, that thus it's the only non valid separator.
+*/
static int repsep_snprintf(char *bf, size_t size, const char *fmt, ...)
{
int n;
--
2.5.0