Merging upstream version 6.9.2.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 33 insertions, 0 deletions

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 727dae445d..3536404e94 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -2850,6 +2850,39 @@ u64 evsel__intval_common(struct evsel *evsel, struct perf_sample *sample, const
 	return field ? format_field__intval(field, sample, evsel->needs_swap) : 0;
 }
 
+char evsel__taskstate(struct evsel *evsel, struct perf_sample *sample, const char *name)
+{
+	static struct tep_format_field *prev_state_field;
+	static const char *states;
+	struct tep_format_field *field;
+	unsigned long long val;
+	unsigned int bit;
+	char state = '?'; /* '?' denotes unknown task state */
+
+	field = evsel__field(evsel, name);
+
+	if (!field)
+		return state;
+
+	if (!states || field != prev_state_field) {
+		states = parse_task_states(field);
+		if (!states)
+			return state;
+		prev_state_field = field;
+	}
+
+	/*
+	 * Note since the kernel exposes TASK_REPORT_MAX to userspace
+	 * to denote the 'preempted' state, we might as welll report
+	 * 'R' for this case, which make senses to users as well.
+	 *
+	 * We can change this if we have a good reason in the future.
+	 */
+	val = evsel__intval(evsel, sample, name);
+	bit = val ? ffs(val) : 0;
+	state = (!bit || bit > strlen(states)) ? 'R' : states[bit-1];
+	return state;
+}
 #endif
 
 bool evsel__fallback(struct evsel *evsel, struct target *target, int err,