event-rule: introduce event-rule kprobe
[lttng-tools.git] / include / lttng / event-rule / kprobe-internal.h
1 /*
2 * Copyright (C) 2019 Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
3 *
4 * SPDX-License-Identifier: LGPL-2.1-only
5 *
6 */
7
8 #ifndef LTTNG_EVENT_RULE_KPROBE_INTERNAL_H
9 #define LTTNG_EVENT_RULE_KPROBE_INTERNAL_H
10
11 #include <common/payload-view.h>
12 #include <common/macros.h>
13 #include <lttng/event-rule/event-rule-internal.h>
14 #include <lttng/event-rule/kprobe.h>
15
16 struct lttng_event_rule_kprobe {
17 struct lttng_event_rule parent;
18 char *name;
19 struct lttng_kernel_probe_location *location;
20 };
21
22 struct lttng_event_rule_kprobe_comm {
23 /* Includes terminator `\0`. */
24 uint32_t name_len;
25 uint32_t location_len;
26 /*
27 * Payload is composed of, in that order:
28 * - name (null terminated),
29 * - kernel probe location object.
30 */
31 char payload[];
32 } LTTNG_PACKED;
33
34 LTTNG_HIDDEN
35 ssize_t lttng_event_rule_kprobe_create_from_payload(
36 struct lttng_payload_view *payload,
37 struct lttng_event_rule **rule);
38
39 #endif /* LTTNG_EVENT_RULE_KPROBE_INTERNAL_H */
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