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93128a92 DG |
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 | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * as published by the Free Software Foundation; either version 2 | |
9 | * of the License, or (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
19 | */ | |
20 | ||
21 | #ifndef _LTTNG_KERNEL_H | |
22 | #define _LTTNG_KERNEL_H | |
23 | ||
9bda164d | 24 | #include "lttng-share.h" |
93128a92 | 25 | |
9cb98350 JD |
26 | #define LTTNG_SYM_NAME_LEN 128 |
27 | ||
28 | enum lttng_kernel_instrumentation { | |
29 | LTTNG_KERNEL_TRACEPOINTS, | |
30 | LTTNG_KERNEL_KPROBES, | |
31 | LTTNG_KERNEL_FUNCTION_TRACER, | |
32 | }; | |
33 | ||
93128a92 DG |
34 | /* |
35 | * LTTng DebugFS ABI structures. | |
36 | */ | |
9cb98350 JD |
37 | |
38 | struct lttng_kernel_channel { | |
39 | int overwrite; /* 1: overwrite, 0: discard */ | |
40 | uint64_t subbuf_size; /* in bytes */ | |
41 | uint64_t num_subbuf; | |
42 | unsigned int switch_timer_interval; /* usecs */ | |
43 | unsigned int read_timer_interval; /* usecs */ | |
44 | }; | |
45 | ||
46 | struct lttng_kernel_tracepoint { | |
47 | }; | |
48 | ||
49 | /* | |
50 | * Either addr is used, or symbol_name and offset. | |
51 | */ | |
52 | struct lttng_kernel_kprobe { | |
53 | uint64_t addr; | |
54 | ||
55 | uint64_t offset; | |
56 | char symbol_name[LTTNG_SYM_NAME_LEN]; | |
57 | }; | |
58 | ||
59 | struct lttng_kernel_function_tracer { | |
60 | char symbol_name[LTTNG_SYM_NAME_LEN]; | |
93128a92 DG |
61 | }; |
62 | ||
9cb98350 JD |
63 | struct lttng_kernel_event { |
64 | char name[LTTNG_SYM_NAME_LEN]; /* event name */ | |
65 | enum lttng_kernel_instrumentation instrumentation; | |
66 | /* Per instrumentation type configuration */ | |
67 | union { | |
68 | struct lttng_kernel_tracepoint tracepoint; | |
69 | struct lttng_kernel_kprobe kprobe; | |
70 | struct lttng_kernel_function_tracer ftrace; | |
71 | } u; | |
93128a92 DG |
72 | }; |
73 | ||
9cb98350 JD |
74 | struct lttng_kernel_tracer_version { |
75 | uint32_t version; | |
76 | uint32_t patchlevel; | |
77 | uint32_t sublevel; | |
93128a92 DG |
78 | }; |
79 | ||
80 | #endif /* _LTTNG_KERNEL_H */ |