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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/include/trace/events/error_report.h
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/* SPDX-License-Identifier: GPL-2.0-only */

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/*

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 * Declarations for error reporting tracepoints.

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 *

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 * Copyright (C) 2021, Google LLC.

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 */

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#undef TRACE_SYSTEM

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#define TRACE_SYSTEM error_report

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#if !defined(_TRACE_ERROR_REPORT_H) || defined(TRACE_HEADER_MULTI_READ)

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#define _TRACE_ERROR_REPORT_H

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#include <linux/tracepoint.h>

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#ifndef __ERROR_REPORT_DECLARE_TRACE_ENUMS_ONCE_ONLY

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#define __ERROR_REPORT_DECLARE_TRACE_ENUMS_ONCE_ONLY

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enum error_detector {

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	ERROR_DETECTOR_KFENCE,

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	ERROR_DETECTOR_KASAN,

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	ERROR_DETECTOR_WARN,

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};

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#endif /* __ERROR_REPORT_DECLARE_TRACE_ENUMS_ONCE_ONLY */

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#define error_detector_list			\

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	EM(ERROR_DETECTOR_KFENCE, "kfence")	\

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	EM(ERROR_DETECTOR_KASAN, "kasan")	\

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	EMe(ERROR_DETECTOR_WARN, "warning")

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/* Always end the list with an EMe. */

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#undef EM

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#undef EMe

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#define EM(a, b)	TRACE_DEFINE_ENUM(a);

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#define EMe(a, b)	TRACE_DEFINE_ENUM(a);

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error_detector_list

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#undef EM

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#undef EMe

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#define EM(a, b) { a, b },

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#define EMe(a, b) { a, b }

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#define show_error_detector_list(val) \

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	__print_symbolic(val, error_detector_list)

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DECLARE_EVENT_CLASS(error_report_template,

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		    TP_PROTO(enum error_detector error_detector, unsigned long id),

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		    TP_ARGS(error_detector, id),

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		    TP_STRUCT__entry(__field(enum error_detector, error_detector)

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					     __field(unsigned long, id)),

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		    TP_fast_assign(__entry->error_detector = error_detector;

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				   __entry->id = id;),

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		    TP_printk("[%s] %lx",

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			      show_error_detector_list(__entry->error_detector),

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			      __entry->id));

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/**

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 * error_report_end - called after printing the error report

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 * @error_detector:	short string describing the error detection tool

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 * @id:			pseudo-unique descriptor identifying the report

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 *			(e.g. the memory access address)

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 *

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 * This event occurs right after a debugging tool finishes printing the error

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 * report.

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 */

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DEFINE_EVENT(error_report_template, error_report_end,

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	     TP_PROTO(enum error_detector error_detector, unsigned long id),

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	     TP_ARGS(error_detector, id));

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#endif /* _TRACE_ERROR_REPORT_H */

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/* This part must be outside protection */

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#include <trace/define_trace.h>

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