[lttv.git] / trunk / tests / kernel / test-trace.c

/*
 * test-trace.c
 *
 * Test tracepoint probes.
 */

#include <linux/module.h>
#include "tp-test.h"
#include <linux/ltt-type-serializer.h>

/* kernel_trap_entry specialized tracepoint probe */

struct serialize_long_long {
	unsigned long f1;
	unsigned long f2;
	unsigned char end_field[0];
} LTT_ALIGN;

void probe_test(void *a, void *b);

DEFINE_MARKER_TP(kernel, test, kernel_test,
	probe_test, "f1 %p f2 %p");

notrace void probe_test(void *a, void *b)
{
	struct marker *marker;
	struct serialize_long_long data;

	data.f1 = (long)a;
	data.f2 = (long)b;

	marker = &GET_MARKER(kernel, test);
	ltt_specialized_trace(marker, marker->single.probe_private,
		&data, serialize_sizeof(data), sizeof(long));
}

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Mathieu Desnoyers");
MODULE_DESCRIPTION("Test Tracepoint Probes");
Commit	Line	Data
2200bbb0	1	/*
	2	* test-trace.c
	3	*
	4	* Test tracepoint probes.
	5	*/
	6
	7	#include <linux/module.h>
	8	#include "tp-test.h"
	9	#include <linux/ltt-type-serializer.h>
	10
	11	/* kernel_trap_entry specialized tracepoint probe */
	12
	13	struct serialize_long_long {
	14	unsigned long f1;
	15	unsigned long f2;
	16	unsigned char end_field[0];
	17	} LTT_ALIGN;
	18
	19	void probe_test(void a, void b);
	20
	21	DEFINE_MARKER_TP(kernel, test, kernel_test,
	22	probe_test, "f1 %p f2 %p");
	23
	24	notrace void probe_test(void a, void b)
	25	{
	26	struct marker *marker;
	27	struct serialize_long_long data;
	28
	29	data.f1 = (long)a;
	30	data.f2 = (long)b;
	31
	32	marker = &GET_MARKER(kernel, test);
	33	ltt_specialized_trace(marker, marker->single.probe_private,
	34	&data, serialize_sizeof(data), sizeof(long));
	35	}
	36
	37	MODULE_LICENSE("GPL");
	38	MODULE_AUTHOR("Mathieu Desnoyers");
	39	MODULE_DESCRIPTION("Test Tracepoint Probes");