SoW-2019-0002: Dynamic Snapshot
[lttng-tools.git] / include / lttng / event-rule / kprobe-internal.h
1 /*
2 * Copyright (C) 2019 - Jonathan Rajotte-Julien <jonathan.rajotte-julien@efficios.com>
3 *
4 * This library is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU Lesser General Public License, version 2.1 only,
6 * as published by the Free Software Foundation.
7 *
8 * This library is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
11 * for more details.
12 *
13 * You should have received a copy of the GNU Lesser General Public License
14 * along with this library; if not, write to the Free Software Foundation,
15 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
16 */
17
18 #ifndef LTTNG_EVENT_RULE_KPROBE_INTERNAL_H
19 #define LTTNG_EVENT_RULE_KPROBE_INTERNAL_H
20
21 #include <lttng/event-rule/kprobe.h>
22 #include <lttng/event-rule/event-rule-internal.h>
23 #include <common/buffer-view.h>
24 #include <common/macros.h>
25
26 struct lttng_event_rule_kprobe {
27 struct lttng_event_rule parent;
28 char *name;
29 struct {
30 uint64_t address;
31 uint64_t offset;
32 char *symbol_name;
33 bool set;
34 } probe;
35 };
36
37 struct lttng_event_rule_kprobe_comm {
38 uint32_t name_len;
39 uint32_t probe_symbol_name_len;
40 uint64_t probe_address;
41 uint64_t probe_offset;
42 /* name, source symbol_name */
43 char payload[];
44 } LTTNG_PACKED;
45
46 LTTNG_HIDDEN
47 ssize_t lttng_event_rule_kprobe_create_from_buffer(
48 const struct lttng_buffer_view *view,
49 struct lttng_event_rule **rule);
50
51 LTTNG_HIDDEN
52 uint64_t lttng_event_rule_kprobe_get_address(
53 const struct lttng_event_rule *rule);
54
55 LTTNG_HIDDEN
56 uint64_t lttng_event_rule_kprobe_get_offset(
57 const struct lttng_event_rule *rule);
58
59 LTTNG_HIDDEN
60 const char *lttng_event_rule_kprobe_get_symbol_name(
61 const struct lttng_event_rule *rule);
62
63 #endif /* LTTNG_EVENT_RULE_KPROBE_INTERNAL_H */
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