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Message-ID: <tip-4j67nvlfwbnkg85b969ewnkr@git.kernel.org>
Date:	Mon, 15 Feb 2016 23:53:11 -0800
From:	tip-bot for Arnaldo Carvalho de Melo <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	acme@...hat.com, jolsa@...nel.org, hpa@...or.com,
	linux-kernel@...r.kernel.org, tglx@...utronix.de, mingo@...nel.org,
	adrian.hunter@...el.com, namhyung@...nel.org, wangnan0@...wei.com
Subject: [tip:perf/core] perf tools:
  Add comment explaining the repsep_snprintf function

Commit-ID:  37d9bb580aa73c171c51fb93edf67a902bcb186f
Gitweb:     http://git.kernel.org/tip/37d9bb580aa73c171c51fb93edf67a902bcb186f
Author:     Arnaldo Carvalho de Melo <acme@...hat.com>
AuthorDate: Fri, 12 Feb 2016 11:27:51 -0300
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Fri, 12 Feb 2016 12:52:20 -0300

perf tools: Add comment explaining the repsep_snprintf function

Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: Jiri Olsa <jolsa@...nel.org>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Wang Nan <wangnan0@...wei.com>
Link: http://lkml.kernel.org/n/tip-4j67nvlfwbnkg85b969ewnkr@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 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 de620f7..8b54ede 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;

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