@@ -109,6 +109,20 @@ static void perf_probe_cgroup(struct evsel *evsel)
evsel->core.attr.cgroup = 1;
}
+static void perf_probe_hw_clock(struct evsel *evsel)
+{
+ evsel->core.attr.use_clockid = 1;
+ evsel->core.attr.ns_clockid = 1;
+ evsel->core.attr.clockid = CLOCK_PERF_HW_CLOCK;
+}
+
+static void perf_probe_hw_clock_ns(struct evsel *evsel)
+{
+ evsel->core.attr.use_clockid = 1;
+ evsel->core.attr.ns_clockid = 1;
+ evsel->core.attr.clockid = CLOCK_PERF_HW_CLOCK_NS;
+}
+
bool perf_can_sample_identifier(void)
{
return perf_probe_api(perf_probe_sample_identifier);
@@ -195,3 +209,13 @@ bool perf_can_record_cgroup(void)
{
return perf_probe_api(perf_probe_cgroup);
}
+
+bool perf_can_perf_clock_hw_clock(void)
+{
+ return perf_probe_api(perf_probe_hw_clock);
+}
+
+bool perf_can_perf_clock_hw_clock_ns(void)
+{
+ return perf_probe_api(perf_probe_hw_clock_ns);
+}
@@ -13,5 +13,7 @@ bool perf_can_record_text_poke_events(void);
bool perf_can_sample_identifier(void);
bool perf_can_record_build_id(void);
bool perf_can_record_cgroup(void);
+bool perf_can_perf_clock_hw_clock(void);
+bool perf_can_perf_clock_hw_clock_ns(void);
#endif // __PERF_API_PROBE_H
Add ability to check whether the kernel supports new clock IDs CLOCK_PERF_HW_CLOCK and CLOCK_PERF_HW_CLOCK_NS. They will be used in a subsequent patch. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> --- tools/perf/util/perf_api_probe.c | 24 ++++++++++++++++++++++++ tools/perf/util/perf_api_probe.h | 2 ++ 2 files changed, 26 insertions(+)