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-rw-r--r--include/trace/events/printk.h37
1 files changed, 37 insertions, 0 deletions
diff --git a/include/trace/events/printk.h b/include/trace/events/printk.h
new file mode 100644
index 0000000000..13d405b2fd
--- /dev/null
+++ b/include/trace/events/printk.h
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM printk
+
+#if !defined(_TRACE_PRINTK_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_PRINTK_H
+
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(console,
+ TP_PROTO(const char *text, size_t len),
+
+ TP_ARGS(text, len),
+
+ TP_STRUCT__entry(
+ __dynamic_array(char, msg, len + 1)
+ ),
+
+ TP_fast_assign(
+ /*
+ * Each trace entry is printed in a new line.
+ * If the msg finishes with '\n', cut it off
+ * to avoid blank lines in the trace.
+ */
+ if ((len > 0) && (text[len-1] == '\n'))
+ len -= 1;
+
+ memcpy(__get_str(msg), text, len);
+ __get_str(msg)[len] = 0;
+ ),
+
+ TP_printk("%s", __get_str(msg))
+);
+#endif /* _TRACE_PRINTK_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>