38 lines · c
1/* SPDX-License-Identifier: GPL-2.0 */2#undef TRACE_SYSTEM3#define TRACE_SYSTEM printk4 5#if !defined(_TRACE_PRINTK_H) || defined(TRACE_HEADER_MULTI_READ)6#define _TRACE_PRINTK_H7 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 off23 * 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