mirror of
https://github.com/torvalds/linux.git
synced 2024-11-19 02:21:47 +00:00
42 lines
1.1 KiB
C
42 lines
1.1 KiB
C
|
#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_CONDITION(console,
|
||
|
|
TP_PROTO(const char *log_buf, unsigned start, unsigned end,
|
||
|
|
unsigned log_buf_len),
|
||
|
|
|
||
|
|
TP_ARGS(log_buf, start, end, log_buf_len),
|
||
|
|
|
||
|
|
TP_CONDITION(start != end),
|
||
|
|
|
||
|
|
TP_STRUCT__entry(
|
||
|
|
__dynamic_array(char, msg, end - start + 1)
|
||
|
|
),
|
||
|
|
|
||
|
|
TP_fast_assign(
|
||
|
|
if ((start & (log_buf_len - 1)) > (end & (log_buf_len - 1))) {
|
||
|
|
memcpy(__get_dynamic_array(msg),
|
||
|
|
log_buf + (start & (log_buf_len - 1)),
|
||
|
|
log_buf_len - (start & (log_buf_len - 1)));
|
||
|
|
memcpy((char *)__get_dynamic_array(msg) +
|
||
|
|
log_buf_len - (start & (log_buf_len - 1)),
|
||
|
|
log_buf, end & (log_buf_len - 1));
|
||
|
|
} else
|
||
|
|
memcpy(__get_dynamic_array(msg),
|
||
|
|
log_buf + (start & (log_buf_len - 1)),
|
||
|
|
end - start);
|
||
|
|
((char *)__get_dynamic_array(msg))[end - start] = 0;
|
||
|
|
),
|
||
|
|
|
||
|
|
TP_printk("%s", __get_str(msg))
|
||
|
|
);
|
||
|
|
#endif /* _TRACE_PRINTK_H */
|
||
|
|
|
||
|
|
/* This part must be outside protection */
|
||
|
|
#include <trace/define_trace.h>
|