1/* SPDX-License-Identifier: GPL-2.0 */
2#undef TRACE_SYSTEM
3#define TRACE_SYSTEM printk
4
5#if !defined(_TRACE_PRINTK_H) || defined(TRACE_HEADER_MULTI_READ)
6#define _TRACE_PRINTK_H
7
8#include <linux/tracepoint.h>
9
10TRACE_EVENT(console,
11 TP_PROTO(const char *text, size_t len),
12
13 TP_ARGS(text, len),
14
15 TP_STRUCT__entry(
16 __dynamic_array(char, msg, len + 1)
17 ),
18
19 TP_fast_assign(
20 /*
21 * Each trace entry is printed in a new line.
22 * If the msg finishes with '\n', cut it off
23 * to avoid blank lines in the trace.
24 */
25 if ((len > 0) && (text[len-1] == '\n'))
26 len -= 1;
27
28 memcpy(__get_str(msg), text, len);
29 __get_str(msg)[len] = 0;
30 ),
31
32 TP_printk("%s", __get_str(msg))
33);
34#endif /* _TRACE_PRINTK_H */
35
36/* This part must be outside protection */
37#include <trace/define_trace.h>
38

source code of linux/include/trace/events/printk.h