Fix: possible leak of path in _utils_expand_path
[lttng-tools.git] / src / common / lttng-kernel-old.h
1 /*
2 * Copyright (C) 2011 - Julien Desfossez <julien.desfossez@polymtl.ca>
3 * Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
4 * David Goulet <david.goulet@polymtl.ca>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License, version 2 only,
8 * as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 */
19
20 #ifndef _LTTNG_KERNEL_OLD_H
21 #define _LTTNG_KERNEL_OLD_H
22
23 #include <stdint.h>
24 #include <common/lttng-kernel.h>
25
26 /*
27 * LTTng DebugFS ABI structures.
28 *
29 * This is the kernel ABI copied from lttng-modules tree.
30 */
31
32 /* Perf counter attributes */
33 struct lttng_kernel_old_perf_counter_ctx {
34 uint32_t type;
35 uint64_t config;
36 char name[LTTNG_KERNEL_SYM_NAME_LEN];
37 };
38
39 /* Event/Channel context */
40 #define LTTNG_KERNEL_OLD_CONTEXT_PADDING1 16
41 #define LTTNG_KERNEL_OLD_CONTEXT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32
42 struct lttng_kernel_old_context {
43 enum lttng_kernel_context_type ctx;
44 char padding[LTTNG_KERNEL_OLD_CONTEXT_PADDING1];
45
46 union {
47 struct lttng_kernel_old_perf_counter_ctx perf_counter;
48 char padding[LTTNG_KERNEL_OLD_CONTEXT_PADDING2];
49 } u;
50 };
51
52 struct lttng_kernel_old_kretprobe {
53 uint64_t addr;
54
55 uint64_t offset;
56 char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
57 };
58
59 /*
60 * Either addr is used, or symbol_name and offset.
61 */
62 struct lttng_kernel_old_kprobe {
63 uint64_t addr;
64
65 uint64_t offset;
66 char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
67 };
68
69 /* Function tracer */
70 struct lttng_kernel_old_function {
71 char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
72 };
73
74 #define LTTNG_KERNEL_OLD_EVENT_PADDING1 16
75 #define LTTNG_KERNEL_OLD_EVENT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32
76 struct lttng_kernel_old_event {
77 char name[LTTNG_KERNEL_SYM_NAME_LEN];
78 enum lttng_kernel_instrumentation instrumentation;
79 char padding[LTTNG_KERNEL_OLD_EVENT_PADDING1];
80
81 /* Per instrumentation type configuration */
82 union {
83 struct lttng_kernel_old_kretprobe kretprobe;
84 struct lttng_kernel_old_kprobe kprobe;
85 struct lttng_kernel_old_function ftrace;
86 char padding[LTTNG_KERNEL_OLD_EVENT_PADDING2];
87 } u;
88 };
89
90 struct lttng_kernel_old_tracer_version {
91 uint32_t major;
92 uint32_t minor;
93 uint32_t patchlevel;
94 };
95
96 /*
97 * kernel channel
98 */
99 #define LTTNG_KERNEL_OLD_CHANNEL_PADDING1 LTTNG_SYMBOL_NAME_LEN + 32
100 struct lttng_kernel_old_channel {
101 int overwrite; /* 1: overwrite, 0: discard */
102 uint64_t subbuf_size; /* bytes */
103 uint64_t num_subbuf; /* power of 2 */
104 unsigned int switch_timer_interval; /* usec */
105 unsigned int read_timer_interval; /* usec */
106 enum lttng_event_output output; /* splice, mmap */
107
108 char padding[LTTNG_KERNEL_OLD_CHANNEL_PADDING1];
109 };
110
111 #endif /* _LTTNG_KERNEL_OLD_H */
This page took 0.032674 seconds and 4 git commands to generate.