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perf tools: Add clockid_name function

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Add the clockid_name() function to get the clock name based on its
clockid.  It will be used in the following changes.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Geneviève Bastien <gbastien@versatic.net>
Cc: Ian Rogers <irogers@google.com>
Cc: Jeremie Galarneau <jgalar@efficios.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lore.kernel.org/lkml/20200805093444.314999-3-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2020-08-05 11:34:39 +02:00 committed by Arnaldo Carvalho de Melo
parent 6953beb4dd
commit cc3365bbd0
2 changed files with 13 additions and 0 deletions
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11
tools/perf/util/clockid.c
View File

@ -106,3 +106,14 @@ int parse_clockid(const struct option *opt, const char *str, int unset)
ui__warning("unknown clockid %s, check man page\n", ostr); ui__warning("unknown clockid %s, check man page\n", ostr);
return -1; return -1;
} }
const char *clockid_name(clockid_t clk_id)
{
const struct clockid_map *cm;
for (cm = clockids; cm->name; cm++) {
if (cm->clockid == clk_id)
return cm->name;
}
return "(not found)";
}

2
tools/perf/util/clockid.h
View File

@ -6,4 +6,6 @@
struct option; struct option;
int parse_clockid(const struct option *opt, const char *str, int unset); int parse_clockid(const struct option *opt, const char *str, int unset);
const char *clockid_name(clockid_t clk_id);
#endif #endif