aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/include/trace/events/printk.h
blob: 13d405b2fd8bc6267a8a7483afee5334fd2d2af9 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
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>