2 #define TRACE_SYSTEM printk
4 #if !defined(_TRACE_PRINTK_H) || defined(TRACE_HEADER_MULTI_READ)
5 #define _TRACE_PRINTK_H
7 #include <linux/tracepoint.h>
8 #include <linux/version.h>
10 #define MSG_TRACE_MAX_LEN 2048
12 TRACE_EVENT_CONDITION(console
,
13 TP_PROTO(const char *log_buf
, unsigned start
, unsigned end
,
14 unsigned log_buf_len
),
16 TP_ARGS(log_buf
, start
, end
, log_buf_len
),
18 TP_CONDITION(start
!= end
),
21 __dynamic_array_text(char, msg
,
22 min_t(unsigned, end
- start
, MSG_TRACE_MAX_LEN
) + 1)
28 char lmsg
[MSG_TRACE_MAX_LEN
+ 1];
30 if ((end
- start
) > MSG_TRACE_MAX_LEN
)
31 start
= end
- MSG_TRACE_MAX_LEN
;
33 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
34 if ((start
& (log_buf_len
- 1)) >
35 (end
& (log_buf_len
- 1))) {
38 (start
& (log_buf_len
- 1)),
40 (start
& (log_buf_len
- 1)));
41 memcpy(lmsg
+ log_buf_len
-
42 (start
& (log_buf_len
- 1)),
44 end
& (log_buf_len
- 1));
48 (start
& (log_buf_len
- 1)),
51 memcpy(lmsg
, log_buf
+ start
, end
- start
);
53 lmsg
[end
- start
] = 0;
59 TP_printk("%s", __get_str(msg
))
61 #endif /* _TRACE_PRINTK_H */
63 /* This part must be outside protection */
64 #include "../../../probes/define_trace.h"
This page took 0.052593 seconds and 4 git commands to generate.