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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 | ||
7d29a247 DG |
28 | /* |
29 | * LTTng DebugFS ABI structures. | |
30 | * | |
31 | * This is the kernel ABI copied from lttng-modules tree. | |
32 | */ | |
33 | ||
9cb98350 | 34 | enum lttng_kernel_instrumentation { |
e6ddca71 DG |
35 | LTTNG_KERNEL_TRACEPOINT = 0, |
36 | LTTNG_KERNEL_KPROBE = 1, | |
37 | LTTNG_KERNEL_FUNCTION = 2, | |
38 | }; | |
39 | ||
7d29a247 DG |
40 | enum lttng_kernel_context_type { |
41 | LTTNG_KERNEL_CONTEXT_PID = 0, | |
42 | LTTNG_KERNEL_CONTEXT_PERF_COUNTER = 1, | |
43 | LTTNG_KERNEL_CONTEXT_COMM = 2, | |
44 | LTTNG_KERNEL_CONTEXT_PRIO = 3, | |
45 | LTTNG_KERNEL_CONTEXT_NICE = 4, | |
46 | LTTNG_KERNEL_CONTEXT_VPID = 5, | |
47 | LTTNG_KERNEL_CONTEXT_TID = 6, | |
48 | LTTNG_KERNEL_CONTEXT_VTID = 7, | |
49 | LTTNG_KERNEL_CONTEXT_PPID = 8, | |
50 | LTTNG_KERNEL_CONTEXT_VPPID = 9, | |
51 | }; | |
52 | ||
53 | /* Perf counter attributes */ | |
54 | struct lttng_kernel_perf_counter_ctx { | |
55 | uint32_t type; | |
56 | uint64_t config; | |
57 | char name[LTTNG_SYMBOL_NAME_LEN]; | |
58 | }; | |
59 | ||
60 | /* Event/Channel context */ | |
61 | struct lttng_kernel_context { | |
62 | enum lttng_kernel_context_type ctx; | |
63 | union { | |
64 | struct lttng_kernel_perf_counter_ctx perf_counter; | |
65 | } u; | |
9cb98350 JD |
66 | }; |
67 | ||
93128a92 | 68 | /* |
7d29a247 | 69 | * Either addr is used, or symbol_name and offset. |
93128a92 | 70 | */ |
7d29a247 DG |
71 | struct lttng_kernel_kprobe { |
72 | uint64_t addr; | |
73 | ||
74 | uint64_t offset; | |
75 | char symbol_name[LTTNG_SYM_NAME_LEN]; | |
76 | }; | |
9cb98350 | 77 | |
f05b5f07 | 78 | /* Function tracer */ |
7d29a247 | 79 | struct lttng_kernel_function { |
9cb98350 | 80 | char symbol_name[LTTNG_SYM_NAME_LEN]; |
93128a92 DG |
81 | }; |
82 | ||
9cb98350 | 83 | struct lttng_kernel_event { |
f3ed775e | 84 | char name[LTTNG_SYM_NAME_LEN]; |
9cb98350 JD |
85 | enum lttng_kernel_instrumentation instrumentation; |
86 | /* Per instrumentation type configuration */ | |
87 | union { | |
7d29a247 DG |
88 | struct lttng_kernel_kprobe kprobe; |
89 | struct lttng_kernel_function ftrace; | |
9cb98350 | 90 | } u; |
93128a92 DG |
91 | }; |
92 | ||
9cb98350 JD |
93 | struct lttng_kernel_tracer_version { |
94 | uint32_t version; | |
95 | uint32_t patchlevel; | |
96 | uint32_t sublevel; | |
93128a92 DG |
97 | }; |
98 | ||
99 | #endif /* _LTTNG_KERNEL_H */ |