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-rw-r--r--tools/perf/trace/beauty/eventfd.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/tools/perf/trace/beauty/eventfd.c b/tools/perf/trace/beauty/eventfd.c
new file mode 100644
index 000000000..4bab10621
--- /dev/null
+++ b/tools/perf/trace/beauty/eventfd.c
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: LGPL-2.1
+#ifndef EFD_SEMAPHORE
+#define EFD_SEMAPHORE 1
+#endif
+
+#ifndef EFD_NONBLOCK
+#define EFD_NONBLOCK 00004000
+#endif
+
+#ifndef EFD_CLOEXEC
+#define EFD_CLOEXEC 02000000
+#endif
+
+static size_t syscall_arg__scnprintf_eventfd_flags(char *bf, size_t size, struct syscall_arg *arg)
+{
+ bool show_prefix = arg->show_string_prefix;
+ const char *prefix = "EFD_";
+ int printed = 0, flags = arg->val;
+
+ if (flags == 0)
+ return scnprintf(bf, size, "NONE");
+#define P_FLAG(n) \
+ if (flags & EFD_##n) { \
+ printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \
+ flags &= ~EFD_##n; \
+ }
+
+ P_FLAG(SEMAPHORE);
+ P_FLAG(CLOEXEC);
+ P_FLAG(NONBLOCK);
+#undef P_FLAG
+
+ if (flags)
+ printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
+
+ return printed;
+}
+
+#define SCA_EFD_FLAGS syscall_arg__scnprintf_eventfd_flags