LXR linux/include/trace/events/printk.h

   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