1 files changed, 76 insertions, 0 deletions
diff --git a/include/trace/events/error_report.h b/include/trace/events/error_report.h
new file mode 100644
index 000000000..a1922a800
--- /dev/null
+++ b/include/trace/events/error_report.h
@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Declarations for error reporting tracepoints.
+ *
+ * Copyright (C) 2021, Google LLC.
+ */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM error_report
+
+#if !defined(_TRACE_ERROR_REPORT_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_ERROR_REPORT_H
+
+#include <linux/tracepoint.h>
+
+#ifndef __ERROR_REPORT_DECLARE_TRACE_ENUMS_ONCE_ONLY
+#define __ERROR_REPORT_DECLARE_TRACE_ENUMS_ONCE_ONLY
+
+enum error_detector {
+	ERROR_DETECTOR_KFENCE,
+	ERROR_DETECTOR_KASAN,
+	ERROR_DETECTOR_WARN,
+};
+
+#endif /* __ERROR_REPORT_DECLARE_TRACE_ENUMS_ONCE_ONLY */
+
+#define error_detector_list			\
+	EM(ERROR_DETECTOR_KFENCE, "kfence")	\
+	EM(ERROR_DETECTOR_KASAN, "kasan")	\
+	EMe(ERROR_DETECTOR_WARN, "warning")
+/* Always end the list with an EMe. */
+
+#undef EM
+#undef EMe
+
+#define EM(a, b)	TRACE_DEFINE_ENUM(a);
+#define EMe(a, b)	TRACE_DEFINE_ENUM(a);
+
+error_detector_list
+
+#undef EM
+#undef EMe
+
+#define EM(a, b) { a, b },
+#define EMe(a, b) { a, b }
+
+#define show_error_detector_list(val) \
+	__print_symbolic(val, error_detector_list)
+
+DECLARE_EVENT_CLASS(error_report_template,
+		    TP_PROTO(enum error_detector error_detector, unsigned long id),
+		    TP_ARGS(error_detector, id),
+		    TP_STRUCT__entry(__field(enum error_detector, error_detector)
+					     __field(unsigned long, id)),
+		    TP_fast_assign(__entry->error_detector = error_detector;
+				   __entry->id = id;),
+		    TP_printk("[%s] %lx",
+			      show_error_detector_list(__entry->error_detector),
+			      __entry->id));
+
+/**
+ * error_report_end - called after printing the error report
+ * @error_detector:	short string describing the error detection tool
+ * @id:			pseudo-unique descriptor identifying the report
+ *			(e.g. the memory access address)
+ *
+ * This event occurs right after a debugging tool finishes printing the error
+ * report.
+ */
+DEFINE_EVENT(error_report_template, error_report_end,
+	     TP_PROTO(enum error_detector error_detector, unsigned long id),
+	     TP_ARGS(error_detector, id));
+
+#endif /* _TRACE_ERROR_REPORT_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>