[lttng-modules.git] / instrumentation / events / lttng-module / printk.h

#undef TRACE_SYSTEM
#define TRACE_SYSTEM printk

#if !defined(LTTNG_TRACE_PRINTK_H) || defined(TRACE_HEADER_MULTI_READ)
#define LTTNG_TRACE_PRINTK_H

#include "../../../probes/lttng-tracepoint-event.h"
#include <linux/version.h>

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0))

LTTNG_TRACEPOINT_EVENT_MAP(console,

	printk_console,

	TP_PROTO(const char *text, size_t len),

	TP_ARGS(text, len),

	TP_STRUCT__entry(
		__dynamic_array_text(char, msg, len)
	),

	TP_fast_assign(
		tp_memcpy_dyn(msg, text)
	),

	TP_printk("%s", __get_str(msg))
)

#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0))

LTTNG_TRACEPOINT_EVENT_CONDITION_MAP(console,

	printk_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_text(char, msg, end - start)
	),

	TP_fast_assign(
		tp_memcpy_dyn(msg, log_buf + start)
	),

	TP_printk("%s", __get_str(msg))
)

#else /* (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0)) */

LTTNG_TRACEPOINT_EVENT_CONDITION_MAP(console,

	printk_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_text_2(char, msg,
			(start & (log_buf_len - 1)) > (end & (log_buf_len - 1))
				? log_buf_len - (start & (log_buf_len - 1))
				: end - start,
			(start & (log_buf_len - 1)) > (end & (log_buf_len - 1))
				? end & (log_buf_len - 1)
				: 0)
	),

	TP_fast_assign(
		tp_memcpy_dyn_2(msg,
			log_buf + (start & (log_buf_len - 1)),
			log_buf)
	),

	TP_printk("%s", __get_str(msg))
)

#endif

#endif /* LTTNG_TRACE_PRINTK_H */

/* This part must be outside protection */
#include "../../../probes/define_trace.h"
Commit	Line	Data
	1	#undef TRACE_SYSTEM
	2	#define TRACE_SYSTEM printk
	3
	4	#if !defined(LTTNG_TRACE_PRINTK_H) \|\| defined(TRACE_HEADER_MULTI_READ)
	5	#define LTTNG_TRACE_PRINTK_H
	6
	7	#include "../../../probes/lttng-tracepoint-event.h"
	8	#include <linux/version.h>
	9
	10	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0))
	11
	12	LTTNG_TRACEPOINT_EVENT_MAP(console,
	13
	14	printk_console,
	15
	16	TP_PROTO(const char *text, size_t len),
	17
	18	TP_ARGS(text, len),
	19
	20	TP_STRUCT__entry(
	21	__dynamic_array_text(char, msg, len)
	22	),
	23
	24	TP_fast_assign(
	25	tp_memcpy_dyn(msg, text)
	26	),
	27
	28	TP_printk("%s", __get_str(msg))
	29	)
	30
	31	#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0))
	32
	33	LTTNG_TRACEPOINT_EVENT_CONDITION_MAP(console,
	34
	35	printk_console,
	36
	37	TP_PROTO(const char *log_buf, unsigned start, unsigned end,
	38	unsigned log_buf_len),
	39
	40	TP_ARGS(log_buf, start, end, log_buf_len),
	41
	42	TP_CONDITION(start != end),
	43
	44	TP_STRUCT__entry(
	45	__dynamic_array_text(char, msg, end - start)
	46	),
	47
	48	TP_fast_assign(
	49	tp_memcpy_dyn(msg, log_buf + start)
	50	),
	51
	52	TP_printk("%s", __get_str(msg))
	53	)
	54
	55	#else /* (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0)) */
	56
	57	LTTNG_TRACEPOINT_EVENT_CONDITION_MAP(console,
	58
	59	printk_console,
	60
	61	TP_PROTO(const char *log_buf, unsigned start, unsigned end,
	62	unsigned log_buf_len),
	63
	64	TP_ARGS(log_buf, start, end, log_buf_len),
	65
	66	TP_CONDITION(start != end),
	67
	68	TP_STRUCT__entry(
	69	__dynamic_array_text_2(char, msg,
	70	(start & (log_buf_len - 1)) > (end & (log_buf_len - 1))
	71	? log_buf_len - (start & (log_buf_len - 1))
	72	: end - start,
	73	(start & (log_buf_len - 1)) > (end & (log_buf_len - 1))
	74	? end & (log_buf_len - 1)
	75	: 0)
	76	),
	77
	78	TP_fast_assign(
	79	tp_memcpy_dyn_2(msg,
	80	log_buf + (start & (log_buf_len - 1)),
	81	log_buf)
	82	),
	83
	84	TP_printk("%s", __get_str(msg))
	85	)
	86
	87	#endif
	88
	89	#endif /* LTTNG_TRACE_PRINTK_H */
	90
	91	/* This part must be outside protection */
	92	#include "../../../probes/define_trace.h"