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path: root/tools/perf/trace/beauty/sched_policy.c
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Diffstat (limited to 'tools/perf/trace/beauty/sched_policy.c')
-rw-r--r--tools/perf/trace/beauty/sched_policy.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/tools/perf/trace/beauty/sched_policy.c b/tools/perf/trace/beauty/sched_policy.c
new file mode 100644
index 000000000000..c205bc608b3c
--- /dev/null
+++ b/tools/perf/trace/beauty/sched_policy.c
@@ -0,0 +1,44 @@
+#include <sched.h>
+
+/*
+ * Not defined anywhere else, probably, just to make sure we
+ * catch future flags
+ */
+#define SCHED_POLICY_MASK 0xff
+
+#ifndef SCHED_DEADLINE
+#define SCHED_DEADLINE 6
+#endif
+
+static size_t syscall_arg__scnprintf_sched_policy(char *bf, size_t size,
+ struct syscall_arg *arg)
+{
+ const char *policies[] = {
+ "NORMAL", "FIFO", "RR", "BATCH", "ISO", "IDLE", "DEADLINE",
+ };
+ size_t printed;
+ int policy = arg->val,
+ flags = policy & ~SCHED_POLICY_MASK;
+
+ policy &= SCHED_POLICY_MASK;
+ if (policy <= SCHED_DEADLINE)
+ printed = scnprintf(bf, size, "%s", policies[policy]);
+ else
+ printed = scnprintf(bf, size, "%#x", policy);
+
+#define P_POLICY_FLAG(n) \
+ if (flags & SCHED_##n) { \
+ printed += scnprintf(bf + printed, size - printed, "|%s", #n); \
+ flags &= ~SCHED_##n; \
+ }
+
+ P_POLICY_FLAG(RESET_ON_FORK);
+#undef P_POLICY_FLAG
+
+ if (flags)
+ printed += scnprintf(bf + printed, size - printed, "|%#x", flags);
+
+ return printed;
+}
+
+#define SCA_SCHED_POLICY syscall_arg__scnprintf_sched_policy