1 files changed, 51 insertions, 0 deletions
diff --git a/tools/perf/trace/beauty/flock.c b/tools/perf/trace/beauty/flock.c
new file mode 100644
index 0000000000..c14274edd6
--- /dev/null
+++ b/tools/perf/trace/beauty/flock.c
@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: LGPL-2.1
+
+#include "trace/beauty/beauty.h"
+#include <linux/kernel.h>
+#include <uapi/linux/fcntl.h>
+
+#ifndef LOCK_MAND
+#define LOCK_MAND	 32
+#endif
+
+#ifndef LOCK_READ
+#define LOCK_READ	 64
+#endif
+
+#ifndef LOCK_WRITE
+#define LOCK_WRITE	128
+#endif
+
+#ifndef LOCK_RW
+#define LOCK_RW		192
+#endif
+
+size_t syscall_arg__scnprintf_flock(char *bf, size_t size, struct syscall_arg *arg)
+{
+	bool show_prefix = arg->show_string_prefix;
+	const char *prefix = "LOCK_";
+	int printed = 0, op = arg->val;
+
+	if (op == 0)
+		return scnprintf(bf, size, "NONE");
+#define	P_CMD(cmd) \
+	if ((op & LOCK_##cmd) == LOCK_##cmd) { \
+		printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #cmd); \
+		op &= ~LOCK_##cmd; \
+	}
+
+	P_CMD(SH);
+	P_CMD(EX);
+	P_CMD(NB);
+	P_CMD(UN);
+	P_CMD(MAND);
+	P_CMD(RW);
+	P_CMD(READ);
+	P_CMD(WRITE);
+#undef P_OP
+
+	if (op)
+		printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", op);
+
+	return printed;
+}