SoW-2019-0002: Dynamic Snapshot
[lttng-tools.git] / include / lttng / event-rule / kretprobe-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_KRETPROBE_INTERNAL_H
19 #define LTTNG_EVENT_RULE_KRETPROBE_INTERNAL_H
20
21 #include <lttng/event-rule/kretprobe.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_kretprobe {
27 struct lttng_event_rule parent;
28 char *name;
29 struct {
30 uint64_t address;
31 uint64_t offset;
32 char *symbol_name;
33 } probe;
34 };
35
36 struct lttng_event_rule_kretprobe_comm {
37 uint32_t name_len;
38 uint32_t probe_symbol_len;
39 /*name, probe symbol_name */
40 char payload[];
41 } LTTNG_PACKED;
42
43 LTTNG_HIDDEN
44 ssize_t lttng_event_rule_kretprobe_create_from_buffer(
45 const struct lttng_buffer_view *view,
46 struct lttng_event_rule **rule);
47
48 LTTNG_HIDDEN
49 uint64_t lttng_event_rule_kretprobe_get_address(
50 const struct lttng_event_rule *rule);
51
52 LTTNG_HIDDEN
53 uint64_t lttng_event_rule_kretprobe_get_offset(
54 const struct lttng_event_rule *rule);
55
56 LTTNG_HIDDEN
57 const char *lttng_event_rule_kretprobe_get_symbol_name(
58 const struct lttng_event_rule *rule);
59
60 #endif /* LTTNG_EVENT_RULE_KRETPROBE_INTERNAL_H */
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