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perf tools: Add comment explaining the repsep_snprintf function

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Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-4j67nvlfwbnkg85b969ewnkr@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2016-02-12 11:27:51 -03:00
parent b416e204f8
commit 37d9bb580a
1 changed files with 9 additions and 1 deletions
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10
tools/perf/util/sort.c
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@ -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;