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 10 TRACE_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