[lttng-modules.git] / src / probes / lttng-kprobes.c

/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
 *
 * probes/lttng-kprobes.c
 *
 * LTTng kprobes integration module.
 *
 * Copyright (C) 2009-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 */

#include <linux/module.h>
#include <linux/kprobes.h>
#include <linux/slab.h>
#include <lttng/events.h>
#include <lttng/events-internal.h>
#include <ringbuffer/frontend_types.h>
#include <wrapper/vmalloc.h>
#include <wrapper/irqflags.h>
#include <lttng/tracer.h>
#include <blacklist/kprobes.h>

static
int lttng_kprobes_event_handler_pre(struct kprobe *p, struct pt_regs *regs)
{
	struct lttng_kernel_event_common_private *event_priv =
		container_of(p, struct lttng_kernel_event_common_private, u.kprobe.kp);
	struct lttng_kernel_event_recorder_private *event_recorder_priv =
		container_of(event_priv, struct lttng_kernel_event_recorder_private, parent);
	struct lttng_kernel_event_recorder *event_recorder =
		event_recorder_priv->pub;
	struct lttng_probe_ctx lttng_probe_ctx = {
		.event = event_recorder,
		.interruptible = !lttng_regs_irqs_disabled(regs),
	};
	struct lttng_channel *chan = event_recorder->chan;
	struct lib_ring_buffer_ctx ctx;
	int ret;
	unsigned long data = (unsigned long) p->addr;

	if (unlikely(!LTTNG_READ_ONCE(chan->session->active)))
		return 0;
	if (unlikely(!LTTNG_READ_ONCE(chan->enabled)))
		return 0;
	if (unlikely(!LTTNG_READ_ONCE(event_recorder->parent.enabled)))
		return 0;

	lib_ring_buffer_ctx_init(&ctx, chan->chan, &lttng_probe_ctx, sizeof(data),
				 lttng_alignof(data), -1);
	ret = chan->ops->event_reserve(&ctx, event_recorder->priv->id);
	if (ret < 0)
		return 0;
	lib_ring_buffer_align_ctx(&ctx, lttng_alignof(data));
	chan->ops->event_write(&ctx, &data, sizeof(data));
	chan->ops->event_commit(&ctx);
	return 0;
}

static
int lttng_kprobes_event_notifier_handler_pre(struct kprobe *p, struct pt_regs *regs)
{
	struct lttng_kernel_event_common_private *event_priv =
		container_of(p, struct lttng_kernel_event_common_private, u.kprobe.kp);
	struct lttng_kernel_event_notifier_private *event_notifier_priv =
		container_of(event_priv, struct lttng_kernel_event_notifier_private, parent);
	struct lttng_kernel_event_notifier *event_notifier =
		event_notifier_priv->pub;
	struct lttng_kernel_notification_ctx notif_ctx;

	if (unlikely(!READ_ONCE(event_notifier->parent.enabled)))
		return 0;

	notif_ctx.eval_capture = LTTNG_READ_ONCE(event_notifier->eval_capture);
	event_notifier->notification_send(event_notifier, NULL, NULL, &notif_ctx);

	return 0;
}

static const struct lttng_kernel_type_common *event_type =
	lttng_kernel_static_type_integer_from_type(unsigned long, __BYTE_ORDER, 16);

/*
 * Create event description
 */
static
int lttng_create_kprobe_event(const char *name, struct lttng_kernel_event_recorder *event_recorder)
{
	const struct lttng_kernel_event_field **fieldp_array;
	struct lttng_kernel_event_field *field;
	struct lttng_kernel_event_desc *desc;
	int ret;

	desc = kzalloc(sizeof(*desc), GFP_KERNEL);
	if (!desc)
		return -ENOMEM;
	desc->event_name = kstrdup(name, GFP_KERNEL);
	if (!desc->event_name) {
		ret = -ENOMEM;
		goto error_str;
	}
	desc->nr_fields = 1;
	fieldp_array = kzalloc(1 * sizeof(struct lttng_kernel_event_field *), GFP_KERNEL);
	if (!fieldp_array) {
		ret = -ENOMEM;
		goto error_fieldp_array;
	}
	desc->fields = fieldp_array;
	desc->fields[0] = field =
		kzalloc(sizeof(struct lttng_kernel_event_field), GFP_KERNEL);
	if (!field) {
		ret = -ENOMEM;
		goto error_field;
	}
	field->name = "ip";
	field->type = event_type;
	desc->owner = THIS_MODULE;
	event_recorder->priv->parent.desc = desc;

	return 0;

error_field:
	kfree(fieldp_array);
error_fieldp_array:
	kfree(desc->event_name);
error_str:
	kfree(desc);
	return ret;
}

/*
 * Create event_notifier description
 */
static
int lttng_create_kprobe_event_notifier(const char *name, struct lttng_kernel_event_notifier *event_notifier)
{
	struct lttng_kernel_event_desc *desc;
	int ret;

	desc = kzalloc(sizeof(*desc), GFP_KERNEL);
	if (!desc)
		return -ENOMEM;
	desc->event_name = kstrdup(name, GFP_KERNEL);
	if (!desc->event_name) {
		ret = -ENOMEM;
		goto error_str;
	}
	desc->nr_fields = 0;

	desc->owner = THIS_MODULE;
	event_notifier->priv->parent.desc = desc;

	return 0;

error_str:
	kfree(desc);
	return ret;
}

static
int _lttng_kprobes_register(const char *symbol_name,
			   uint64_t offset,
			   uint64_t addr,
			   struct lttng_kprobe *lttng_kp,
			   kprobe_pre_handler_t pre_handler)
{
	int ret;

	/* Kprobes expects a NULL symbol name if unused */
	if (symbol_name[0] == '\0')
		symbol_name = NULL;

	memset(&lttng_kp->kp, 0, sizeof(lttng_kp->kp));
	lttng_kp->kp.pre_handler = pre_handler;

	if (symbol_name) {
		lttng_kp->symbol_name =
			kzalloc(LTTNG_KERNEL_ABI_SYM_NAME_LEN * sizeof(char),
				GFP_KERNEL);
		if (!lttng_kp->symbol_name) {
			ret = -ENOMEM;
			goto name_error;
		}
		memcpy(lttng_kp->symbol_name, symbol_name,
		       LTTNG_KERNEL_ABI_SYM_NAME_LEN * sizeof(char));
		lttng_kp->kp.symbol_name = lttng_kp->symbol_name;
	}

	lttng_kp->kp.offset = offset;
	lttng_kp->kp.addr = (void *) (unsigned long) addr;

	/*
	 * Ensure the memory we just allocated don't notify page faults.
	 * Well.. kprobes itself puts the page fault handler on the blacklist,
	 * but we can never be too careful.
	 */
	wrapper_vmalloc_sync_mappings();

	ret = register_kprobe(&lttng_kp->kp);
	if (ret)
		goto register_error;

	return 0;

register_error:
	kfree(lttng_kp->symbol_name);
name_error:
	return ret;
}

int lttng_kprobes_register_event(const char *name,
			   const char *symbol_name,
			   uint64_t offset,
			   uint64_t addr,
			   struct lttng_kernel_event_recorder *event_recorder)
{
	int ret;

	ret = lttng_create_kprobe_event(name, event_recorder);
	if (ret)
		goto error;

	ret = _lttng_kprobes_register(symbol_name, offset, addr,
		&event_recorder->priv->parent.u.kprobe, lttng_kprobes_event_handler_pre);
	if (ret)
		goto register_error;

	return 0;

register_error:
	kfree(event_recorder->priv->parent.desc->fields);
	kfree(event_recorder->priv->parent.desc->event_name);
	kfree(event_recorder->priv->parent.desc);
error:
	return ret;
}
EXPORT_SYMBOL_GPL(lttng_kprobes_register_event);

int lttng_kprobes_register_event_notifier(const char *symbol_name,
			   uint64_t offset,
			   uint64_t addr,
			   struct lttng_kernel_event_notifier *event_notifier)
{
	int ret;
	ret = lttng_create_kprobe_event_notifier(symbol_name, event_notifier);
	if (ret)
		goto error;

	ret = _lttng_kprobes_register(symbol_name, offset, addr,
		&event_notifier->priv->parent.u.kprobe, lttng_kprobes_event_notifier_handler_pre);
	if (ret)
		goto register_error;

	return 0;

register_error:
	kfree(event_notifier->priv->parent.desc->event_name);
	kfree(event_notifier->priv->parent.desc);
error:
	return ret;
}
EXPORT_SYMBOL_GPL(lttng_kprobes_register_event_notifier);

void lttng_kprobes_unregister_event(struct lttng_kernel_event_recorder *event_recorder)
{
	unregister_kprobe(&event_recorder->priv->parent.u.kprobe.kp);
}
EXPORT_SYMBOL_GPL(lttng_kprobes_unregister_event);

void lttng_kprobes_unregister_event_notifier(struct lttng_kernel_event_notifier *event_notifier)
{
	unregister_kprobe(&event_notifier->priv->parent.u.kprobe.kp);
}
EXPORT_SYMBOL_GPL(lttng_kprobes_unregister_event_notifier);

void lttng_kprobes_destroy_event_private(struct lttng_kernel_event_recorder *event_recorder)
{
	kfree(event_recorder->priv->parent.u.kprobe.symbol_name);
	kfree(event_recorder->priv->parent.desc->fields[0]);
	kfree(event_recorder->priv->parent.desc->fields);
	kfree(event_recorder->priv->parent.desc->event_name);
	kfree(event_recorder->priv->parent.desc);
}
EXPORT_SYMBOL_GPL(lttng_kprobes_destroy_event_private);

void lttng_kprobes_destroy_event_notifier_private(struct lttng_kernel_event_notifier *event_notifier)
{
	kfree(event_notifier->priv->parent.u.kprobe.symbol_name);
	kfree(event_notifier->priv->parent.desc->event_name);
	kfree(event_notifier->priv->parent.desc);
}
EXPORT_SYMBOL_GPL(lttng_kprobes_destroy_event_notifier_private);

MODULE_LICENSE("GPL and additional rights");
MODULE_AUTHOR("Mathieu Desnoyers <mathieu.desnoyers@efficios.com>");
MODULE_DESCRIPTION("LTTng kprobes probes");
MODULE_VERSION(__stringify(LTTNG_MODULES_MAJOR_VERSION) "."
	__stringify(LTTNG_MODULES_MINOR_VERSION) "."
	__stringify(LTTNG_MODULES_PATCHLEVEL_VERSION)
	LTTNG_MODULES_EXTRAVERSION);
Commit	Line	Data
b7cdc182	1	/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
9f36eaed	2	*
886d51a3	3	* probes/lttng-kprobes.c
d6d808f3 MD	4	*
	5	* LTTng kprobes integration module.
	6	*
886d51a3	7	* Copyright (C) 2009-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
d6d808f3 MD	8	*/
	9
	10	#include <linux/module.h>
	11	#include <linux/kprobes.h>
f17701fb	12	#include <linux/slab.h>
2df37e95	13	#include <lttng/events.h>
a67ba386	14	#include <lttng/events-internal.h>
24591303	15	#include <ringbuffer/frontend_types.h>
156a3977 MD	16	#include <wrapper/vmalloc.h>
156a3977 MD	17	#include <wrapper/irqflags.h>
2df37e95	18	#include <lttng/tracer.h>
caa068b5	19	#include <blacklist/kprobes.h>
d6d808f3	20
f17701fb	21	static
8bf17deb	22	int lttng_kprobes_event_handler_pre(struct kprobe p, struct pt_regs regs)
d6d808f3	23	{
a67ba386 MD	24	struct lttng_kernel_event_common_private *event_priv =
	25	container_of(p, struct lttng_kernel_event_common_private, u.kprobe.kp);
	26	struct lttng_kernel_event_recorder_private *event_recorder_priv =
	27	container_of(event_priv, struct lttng_kernel_event_recorder_private, parent);
	28	struct lttng_kernel_event_recorder *event_recorder =
	29	event_recorder_priv->pub;
79150a49	30	struct lttng_probe_ctx lttng_probe_ctx = {
a67ba386	31	.event = event_recorder,
ccecf3fb	32	.interruptible = !lttng_regs_irqs_disabled(regs),
79150a49	33	};
a67ba386	34	struct lttng_channel *chan = event_recorder->chan;
d6d808f3 MD	35	struct lib_ring_buffer_ctx ctx;
	36	int ret;
	37	unsigned long data = (unsigned long) p->addr;
	38
585e5dcc	39	if (unlikely(!LTTNG_READ_ONCE(chan->session->active)))
f17701fb	40	return 0;
585e5dcc	41	if (unlikely(!LTTNG_READ_ONCE(chan->enabled)))
e64957da	42	return 0;
a67ba386	43	if (unlikely(!LTTNG_READ_ONCE(event_recorder->parent.enabled)))
e64957da MD	44	return 0;
e64957da MD	45
79150a49	46	lib_ring_buffer_ctx_init(&ctx, chan->chan, &lttng_probe_ctx, sizeof(data),
a90917c3	47	lttng_alignof(data), -1);
a67ba386	48	ret = chan->ops->event_reserve(&ctx, event_recorder->priv->id);
d6d808f3	49	if (ret < 0)
f17701fb	50	return 0;
a90917c3	51	lib_ring_buffer_align_ctx(&ctx, lttng_alignof(data));
d6d808f3 MD	52	chan->ops->event_write(&ctx, &data, sizeof(data));
d6d808f3 MD	53	chan->ops->event_commit(&ctx);
f17701fb	54	return 0;
d6d808f3	55	}
f17701fb	56
2b16f0c9 FD	57	static
	58	int lttng_kprobes_event_notifier_handler_pre(struct kprobe p, struct pt_regs regs)
	59	{
a67ba386 MD	60	struct lttng_kernel_event_common_private *event_priv =
	61	container_of(p, struct lttng_kernel_event_common_private, u.kprobe.kp);
	62	struct lttng_kernel_event_notifier_private *event_notifier_priv =
	63	container_of(event_priv, struct lttng_kernel_event_notifier_private, parent);
	64	struct lttng_kernel_event_notifier *event_notifier =
	65	event_notifier_priv->pub;
	66	struct lttng_kernel_notification_ctx notif_ctx;
	67
	68	if (unlikely(!READ_ONCE(event_notifier->parent.enabled)))
2b16f0c9 FD	69	return 0;
2b16f0c9 FD	70
c3eddb2e	71	notif_ctx.eval_capture = LTTNG_READ_ONCE(event_notifier->eval_capture);
a67ba386	72	event_notifier->notification_send(event_notifier, NULL, NULL, &notif_ctx);
2b16f0c9 FD	73
	74	return 0;
	75	}
	76
437d5aa5 MD	77	static const struct lttng_kernel_type_common *event_type =
	78	lttng_kernel_static_type_integer_from_type(unsigned long, __BYTE_ORDER, 16);
	79
f17701fb MD	80	/*
	81	* Create event description
	82	*/
	83	static
a67ba386	84	int lttng_create_kprobe_event(const char name, struct lttng_kernel_event_recorder event_recorder)
f17701fb	85	{
437d5aa5 MD	86	const struct lttng_kernel_event_field **fieldp_array;
	87	struct lttng_kernel_event_field *field;
	88	struct lttng_kernel_event_desc *desc;
f17701fb MD	89	int ret;
f17701fb MD	90
437d5aa5	91	desc = kzalloc(sizeof(*desc), GFP_KERNEL);
d3dbe23c	92	if (!desc)
f17701fb	93	return -ENOMEM;
437d5aa5 MD	94	desc->event_name = kstrdup(name, GFP_KERNEL);
437d5aa5 MD	95	if (!desc->event_name) {
f17701fb MD	96	ret = -ENOMEM;
	97	goto error_str;
	98	}
d3dbe23c	99	desc->nr_fields = 1;
437d5aa5 MD	100	fieldp_array = kzalloc(1 * sizeof(struct lttng_kernel_event_field *), GFP_KERNEL);
	101	if (!fieldp_array) {
	102	ret = -ENOMEM;
	103	goto error_fieldp_array;
	104	}
	105	desc->fields = fieldp_array;
	106	desc->fields[0] = field =
	107	kzalloc(sizeof(struct lttng_kernel_event_field), GFP_KERNEL);
0d1a681e MD	108	if (!field) {
	109	ret = -ENOMEM;
	110	goto error_field;
	111	}
f17701fb	112	field->name = "ip";
437d5aa5	113	field->type = event_type;
dc7f600a	114	desc->owner = THIS_MODULE;
a67ba386	115	event_recorder->priv->parent.desc = desc;
f17701fb MD	116
	117	return 0;
	118
0d1a681e	119	error_field:
437d5aa5 MD	120	kfree(fieldp_array);
	121	error_fieldp_array:
	122	kfree(desc->event_name);
f17701fb	123	error_str:
d3dbe23c	124	kfree(desc);
f17701fb MD	125	return ret;
	126	}
	127
2b16f0c9 FD	128	/*
	129	* Create event_notifier description
	130	*/
	131	static
a67ba386	132	int lttng_create_kprobe_event_notifier(const char name, struct lttng_kernel_event_notifier event_notifier)
2b16f0c9	133	{
437d5aa5	134	struct lttng_kernel_event_desc *desc;
2b16f0c9 FD	135	int ret;
2b16f0c9 FD	136
437d5aa5	137	desc = kzalloc(sizeof(*desc), GFP_KERNEL);
2b16f0c9 FD	138	if (!desc)
2b16f0c9 FD	139	return -ENOMEM;
437d5aa5 MD	140	desc->event_name = kstrdup(name, GFP_KERNEL);
437d5aa5 MD	141	if (!desc->event_name) {
2b16f0c9 FD	142	ret = -ENOMEM;
	143	goto error_str;
	144	}
	145	desc->nr_fields = 0;
	146
	147	desc->owner = THIS_MODULE;
a67ba386	148	event_notifier->priv->parent.desc = desc;
2b16f0c9 FD	149
	150	return 0;
	151
	152	error_str:
	153	kfree(desc);
	154	return ret;
	155	}
	156
8bf17deb FD	157	static
8bf17deb FD	158	int _lttng_kprobes_register(const char *symbol_name,
f17701fb MD	159	uint64_t offset,
f17701fb MD	160	uint64_t addr,
8bf17deb FD	161	struct lttng_kprobe *lttng_kp,
8bf17deb FD	162	kprobe_pre_handler_t pre_handler)
f17701fb MD	163	{
	164	int ret;
	165
c37f2a9b MD	166	/* Kprobes expects a NULL symbol name if unused */
	167	if (symbol_name[0] == '\0')
	168	symbol_name = NULL;
	169
8bf17deb FD	170	memset(&lttng_kp->kp, 0, sizeof(lttng_kp->kp));
	171	lttng_kp->kp.pre_handler = pre_handler;
	172
c37f2a9b	173	if (symbol_name) {
8bf17deb	174	lttng_kp->symbol_name =
606828e4	175	kzalloc(LTTNG_KERNEL_ABI_SYM_NAME_LEN * sizeof(char),
c37f2a9b	176	GFP_KERNEL);
8bf17deb	177	if (!lttng_kp->symbol_name) {
c37f2a9b MD	178	ret = -ENOMEM;
	179	goto name_error;
	180	}
8bf17deb	181	memcpy(lttng_kp->symbol_name, symbol_name,
606828e4	182	LTTNG_KERNEL_ABI_SYM_NAME_LEN * sizeof(char));
8bf17deb	183	lttng_kp->kp.symbol_name = lttng_kp->symbol_name;
f17701fb	184	}
8bf17deb FD	185
	186	lttng_kp->kp.offset = offset;
	187	lttng_kp->kp.addr = (void *) (unsigned long) addr;
16a9a591 MD	188
16a9a591 MD	189	/*
196bfc6a	190	* Ensure the memory we just allocated don't notify page faults.
16a9a591 MD	191	* Well.. kprobes itself puts the page fault handler on the blacklist,
	192	* but we can never be too careful.
	193	*/
263b6c88	194	wrapper_vmalloc_sync_mappings();
16a9a591	195
8bf17deb	196	ret = register_kprobe(&lttng_kp->kp);
f17701fb MD	197	if (ret)
f17701fb MD	198	goto register_error;
8bf17deb	199
f17701fb MD	200	return 0;
	201
	202	register_error:
8bf17deb	203	kfree(lttng_kp->symbol_name);
f17701fb	204	name_error:
8bf17deb FD	205	return ret;
	206	}
	207
	208	int lttng_kprobes_register_event(const char *name,
	209	const char *symbol_name,
	210	uint64_t offset,
	211	uint64_t addr,
a67ba386	212	struct lttng_kernel_event_recorder *event_recorder)
8bf17deb FD	213	{
	214	int ret;
	215
a67ba386	216	ret = lttng_create_kprobe_event(name, event_recorder);
8bf17deb FD	217	if (ret)
	218	goto error;
	219
	220	ret = _lttng_kprobes_register(symbol_name, offset, addr,
a67ba386	221	&event_recorder->priv->parent.u.kprobe, lttng_kprobes_event_handler_pre);
8bf17deb FD	222	if (ret)
	223	goto register_error;
	224
	225	return 0;
	226
	227	register_error:
a67ba386 MD	228	kfree(event_recorder->priv->parent.desc->fields);
	229	kfree(event_recorder->priv->parent.desc->event_name);
	230	kfree(event_recorder->priv->parent.desc);
f17701fb MD	231	error:
	232	return ret;
	233	}
8bf17deb	234	EXPORT_SYMBOL_GPL(lttng_kprobes_register_event);
f17701fb	235
2b16f0c9 FD	236	int lttng_kprobes_register_event_notifier(const char *symbol_name,
	237	uint64_t offset,
	238	uint64_t addr,
a67ba386	239	struct lttng_kernel_event_notifier *event_notifier)
2b16f0c9 FD	240	{
	241	int ret;
	242	ret = lttng_create_kprobe_event_notifier(symbol_name, event_notifier);
	243	if (ret)
	244	goto error;
	245
	246	ret = _lttng_kprobes_register(symbol_name, offset, addr,
a67ba386	247	&event_notifier->priv->parent.u.kprobe, lttng_kprobes_event_notifier_handler_pre);
2b16f0c9 FD	248	if (ret)
	249	goto register_error;
	250
	251	return 0;
	252
	253	register_error:
a67ba386 MD	254	kfree(event_notifier->priv->parent.desc->event_name);
a67ba386 MD	255	kfree(event_notifier->priv->parent.desc);
2b16f0c9 FD	256	error:
	257	return ret;
	258	}
	259	EXPORT_SYMBOL_GPL(lttng_kprobes_register_event_notifier);
	260
a67ba386	261	void lttng_kprobes_unregister_event(struct lttng_kernel_event_recorder *event_recorder)
f17701fb	262	{
a67ba386	263	unregister_kprobe(&event_recorder->priv->parent.u.kprobe.kp);
edeb3137	264	}
8bf17deb	265	EXPORT_SYMBOL_GPL(lttng_kprobes_unregister_event);
edeb3137	266
a67ba386	267	void lttng_kprobes_unregister_event_notifier(struct lttng_kernel_event_notifier *event_notifier)
2b16f0c9	268	{
a67ba386	269	unregister_kprobe(&event_notifier->priv->parent.u.kprobe.kp);
2b16f0c9 FD	270	}
	271	EXPORT_SYMBOL_GPL(lttng_kprobes_unregister_event_notifier);
	272
a67ba386	273	void lttng_kprobes_destroy_event_private(struct lttng_kernel_event_recorder *event_recorder)
edeb3137	274	{
a67ba386 MD	275	kfree(event_recorder->priv->parent.u.kprobe.symbol_name);
	276	kfree(event_recorder->priv->parent.desc->fields[0]);
	277	kfree(event_recorder->priv->parent.desc->fields);
	278	kfree(event_recorder->priv->parent.desc->event_name);
	279	kfree(event_recorder->priv->parent.desc);
f17701fb	280	}
8bf17deb	281	EXPORT_SYMBOL_GPL(lttng_kprobes_destroy_event_private);
d6d808f3	282
a67ba386	283	void lttng_kprobes_destroy_event_notifier_private(struct lttng_kernel_event_notifier *event_notifier)
2b16f0c9	284	{
a67ba386 MD	285	kfree(event_notifier->priv->parent.u.kprobe.symbol_name);
	286	kfree(event_notifier->priv->parent.desc->event_name);
	287	kfree(event_notifier->priv->parent.desc);
2b16f0c9 FD	288	}
	289	EXPORT_SYMBOL_GPL(lttng_kprobes_destroy_event_notifier_private);
	290
d6d808f3	291	MODULE_LICENSE("GPL and additional rights");
1c124020 MJ	292	MODULE_AUTHOR("Mathieu Desnoyers <mathieu.desnoyers@efficios.com>");
1c124020 MJ	293	MODULE_DESCRIPTION("LTTng kprobes probes");
13ab8b0a MD	294	MODULE_VERSION(__stringify(LTTNG_MODULES_MAJOR_VERSION) "."
	295	__stringify(LTTNG_MODULES_MINOR_VERSION) "."
	296	__stringify(LTTNG_MODULES_PATCHLEVEL_VERSION)
	297	LTTNG_MODULES_EXTRAVERSION);