Commit | Line | Data |
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93128a92 | 1 | /* |
ab5be9fa MJ |
2 | * Copyright (C) 2011 Julien Desfossez <julien.desfossez@polymtl.ca> |
3 | * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
4 | * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca> | |
93128a92 | 5 | * |
ab5be9fa | 6 | * SPDX-License-Identifier: GPL-2.0-only |
93128a92 | 7 | * |
93128a92 DG |
8 | */ |
9 | ||
10 | #ifndef _LTTNG_KERNEL_H | |
11 | #define _LTTNG_KERNEL_H | |
12 | ||
e848fc76 | 13 | #include <stdint.h> |
113373e4 | 14 | #include <common/macros.h> |
0ef03255 FD |
15 | #include <lttng/constant.h> |
16 | #include <lttng/event.h> | |
e848fc76 | 17 | |
dbbb3ec5 | 18 | #define LTTNG_KERNEL_SYM_NAME_LEN 256 |
0ef03255 | 19 | #define LTTNG_KERNEL_MAX_UPROBE_NUM 32 |
8ff4109e | 20 | #define LTTNG_KERNEL_SESSION_NAME_LEN 256 |
e04b2181 | 21 | #define LTTNG_KERNEL_SESSION_CREATION_TIME_ISO8601_LEN 26 |
9cb98350 | 22 | |
7d29a247 DG |
23 | /* |
24 | * LTTng DebugFS ABI structures. | |
25 | * | |
26 | * This is the kernel ABI copied from lttng-modules tree. | |
27 | */ | |
28 | ||
9cb98350 | 29 | enum lttng_kernel_instrumentation { |
5f822d0a | 30 | LTTNG_KERNEL_ALL = -1, /* Used within lttng-tools */ |
e6ddca71 DG |
31 | LTTNG_KERNEL_TRACEPOINT = 0, |
32 | LTTNG_KERNEL_KPROBE = 1, | |
33 | LTTNG_KERNEL_FUNCTION = 2, | |
8f0d098b | 34 | LTTNG_KERNEL_KRETPROBE = 3, |
0133c199 | 35 | LTTNG_KERNEL_NOOP = 4, /* not hooked */ |
a54bd42d | 36 | LTTNG_KERNEL_SYSCALL = 5, |
1ab8c2ad | 37 | LTTNG_KERNEL_UPROBE = 6, |
e6ddca71 DG |
38 | }; |
39 | ||
7d29a247 DG |
40 | enum lttng_kernel_context_type { |
41 | LTTNG_KERNEL_CONTEXT_PID = 0, | |
aa3514e9 | 42 | LTTNG_KERNEL_CONTEXT_PERF_CPU_COUNTER = 1, |
9197c5c4 | 43 | LTTNG_KERNEL_CONTEXT_PROCNAME = 2, |
7d29a247 DG |
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, | |
54773d68 | 51 | LTTNG_KERNEL_CONTEXT_HOSTNAME = 10, |
33e801a9 | 52 | LTTNG_KERNEL_CONTEXT_CPU_ID = 11, |
1ae5e83e JD |
53 | LTTNG_KERNEL_CONTEXT_INTERRUPTIBLE = 12, |
54 | LTTNG_KERNEL_CONTEXT_PREEMPTIBLE = 13, | |
55 | LTTNG_KERNEL_CONTEXT_NEED_RESCHEDULE = 14, | |
56 | LTTNG_KERNEL_CONTEXT_MIGRATABLE = 15, | |
373148e9 FG |
57 | LTTNG_KERNEL_CONTEXT_CALLSTACK_KERNEL = 16, |
58 | LTTNG_KERNEL_CONTEXT_CALLSTACK_USER = 17, | |
40e14884 MJ |
59 | LTTNG_KERNEL_CONTEXT_CGROUP_NS = 18, |
60 | LTTNG_KERNEL_CONTEXT_IPC_NS = 19, | |
61 | LTTNG_KERNEL_CONTEXT_MNT_NS = 20, | |
62 | LTTNG_KERNEL_CONTEXT_NET_NS = 21, | |
63 | LTTNG_KERNEL_CONTEXT_PID_NS = 22, | |
64 | LTTNG_KERNEL_CONTEXT_USER_NS = 23, | |
65 | LTTNG_KERNEL_CONTEXT_UTS_NS = 24, | |
499cbfa1 MJ |
66 | LTTNG_KERNEL_CONTEXT_UID = 25, |
67 | LTTNG_KERNEL_CONTEXT_EUID = 26, | |
68 | LTTNG_KERNEL_CONTEXT_SUID = 27, | |
69 | LTTNG_KERNEL_CONTEXT_GID = 28, | |
70 | LTTNG_KERNEL_CONTEXT_EGID = 29, | |
71 | LTTNG_KERNEL_CONTEXT_SGID = 30, | |
72 | LTTNG_KERNEL_CONTEXT_VUID = 31, | |
73 | LTTNG_KERNEL_CONTEXT_VEUID = 32, | |
74 | LTTNG_KERNEL_CONTEXT_VSUID = 33, | |
75 | LTTNG_KERNEL_CONTEXT_VGID = 34, | |
76 | LTTNG_KERNEL_CONTEXT_VEGID = 35, | |
77 | LTTNG_KERNEL_CONTEXT_VSGID = 36, | |
7d29a247 DG |
78 | }; |
79 | ||
80 | /* Perf counter attributes */ | |
81 | struct lttng_kernel_perf_counter_ctx { | |
82 | uint32_t type; | |
83 | uint64_t config; | |
dbbb3ec5 | 84 | char name[LTTNG_KERNEL_SYM_NAME_LEN]; |
113373e4 | 85 | } LTTNG_PACKED; |
7d29a247 DG |
86 | |
87 | /* Event/Channel context */ | |
dbbb3ec5 DG |
88 | #define LTTNG_KERNEL_CONTEXT_PADDING1 16 |
89 | #define LTTNG_KERNEL_CONTEXT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32 | |
7d29a247 DG |
90 | struct lttng_kernel_context { |
91 | enum lttng_kernel_context_type ctx; | |
dbbb3ec5 DG |
92 | char padding[LTTNG_KERNEL_CONTEXT_PADDING1]; |
93 | ||
7d29a247 DG |
94 | union { |
95 | struct lttng_kernel_perf_counter_ctx perf_counter; | |
dbbb3ec5 | 96 | char padding[LTTNG_KERNEL_CONTEXT_PADDING2]; |
7d29a247 | 97 | } u; |
113373e4 | 98 | } LTTNG_PACKED; |
9cb98350 | 99 | |
8f0d098b MD |
100 | struct lttng_kernel_kretprobe { |
101 | uint64_t addr; | |
102 | ||
103 | uint64_t offset; | |
dbbb3ec5 | 104 | char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN]; |
113373e4 | 105 | } LTTNG_PACKED; |
8f0d098b | 106 | |
93128a92 | 107 | /* |
7d29a247 | 108 | * Either addr is used, or symbol_name and offset. |
93128a92 | 109 | */ |
7d29a247 DG |
110 | struct lttng_kernel_kprobe { |
111 | uint64_t addr; | |
112 | ||
113 | uint64_t offset; | |
dbbb3ec5 | 114 | char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN]; |
113373e4 | 115 | } LTTNG_PACKED; |
9cb98350 | 116 | |
1ab8c2ad FD |
117 | struct lttng_kernel_uprobe { |
118 | int fd; | |
119 | } LTTNG_PACKED; | |
120 | ||
121 | struct lttng_kernel_event_callsite_uprobe { | |
122 | uint64_t offset; | |
123 | } LTTNG_PACKED; | |
124 | ||
125 | struct lttng_kernel_event_callsite { | |
126 | union { | |
127 | struct lttng_kernel_event_callsite_uprobe uprobe; | |
128 | } u; | |
129 | } LTTNG_PACKED; | |
130 | ||
f05b5f07 | 131 | /* Function tracer */ |
7d29a247 | 132 | struct lttng_kernel_function { |
dbbb3ec5 | 133 | char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN]; |
113373e4 | 134 | } LTTNG_PACKED; |
93128a92 | 135 | |
dbbb3ec5 DG |
136 | #define LTTNG_KERNEL_EVENT_PADDING1 16 |
137 | #define LTTNG_KERNEL_EVENT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32 | |
9cb98350 | 138 | struct lttng_kernel_event { |
dbbb3ec5 | 139 | char name[LTTNG_KERNEL_SYM_NAME_LEN]; |
9cb98350 | 140 | enum lttng_kernel_instrumentation instrumentation; |
dbbb3ec5 DG |
141 | char padding[LTTNG_KERNEL_EVENT_PADDING1]; |
142 | ||
9cb98350 JD |
143 | /* Per instrumentation type configuration */ |
144 | union { | |
8f0d098b | 145 | struct lttng_kernel_kretprobe kretprobe; |
7d29a247 | 146 | struct lttng_kernel_kprobe kprobe; |
1ab8c2ad | 147 | struct lttng_kernel_uprobe uprobe; |
7d29a247 | 148 | struct lttng_kernel_function ftrace; |
dbbb3ec5 | 149 | char padding[LTTNG_KERNEL_EVENT_PADDING2]; |
9cb98350 | 150 | } u; |
113373e4 | 151 | } LTTNG_PACKED; |
93128a92 | 152 | |
9cb98350 | 153 | struct lttng_kernel_tracer_version { |
a62a6556 MD |
154 | uint32_t major; |
155 | uint32_t minor; | |
9cb98350 | 156 | uint32_t patchlevel; |
113373e4 | 157 | } LTTNG_PACKED; |
93128a92 | 158 | |
c052142c MD |
159 | struct lttng_kernel_tracer_abi_version { |
160 | uint32_t major; | |
161 | uint32_t minor; | |
162 | } LTTNG_PACKED; | |
163 | ||
e80c3634 | 164 | struct lttng_kernel_syscall_mask { |
46820c8b | 165 | uint32_t len; /* in bits */ |
e80c3634 MD |
166 | char mask[]; |
167 | } LTTNG_PACKED; | |
168 | ||
4dbc372b JD |
169 | /* |
170 | * kernel channel | |
171 | */ | |
172 | #define LTTNG_KERNEL_CHANNEL_PADDING1 LTTNG_SYMBOL_NAME_LEN + 32 | |
173 | struct lttng_kernel_channel { | |
174 | uint64_t subbuf_size; /* bytes */ | |
175 | uint64_t num_subbuf; /* power of 2 */ | |
176 | unsigned int switch_timer_interval; /* usec */ | |
177 | unsigned int read_timer_interval; /* usec */ | |
178 | enum lttng_event_output output; /* splice, mmap */ | |
179 | ||
180 | int overwrite; /* 1: overwrite, 0: discard */ | |
181 | char padding[LTTNG_KERNEL_CHANNEL_PADDING1]; | |
113373e4 | 182 | } LTTNG_PACKED; |
d0254c7c | 183 | |
00a62084 MD |
184 | #define KERNEL_FILTER_BYTECODE_MAX_LEN 65536 |
185 | struct lttng_kernel_filter_bytecode { | |
186 | uint32_t len; | |
187 | uint32_t reloc_offset; | |
188 | uint64_t seqnum; | |
189 | char data[0]; | |
190 | } LTTNG_PACKED; | |
191 | ||
8ff4109e JR |
192 | /* |
193 | * kernel session name | |
194 | */ | |
195 | struct lttng_kernel_session_name { | |
196 | char name[LTTNG_KERNEL_SESSION_NAME_LEN]; | |
197 | } LTTNG_PACKED; | |
198 | ||
e04b2181 JR |
199 | /* |
200 | * kernel session creation datetime | |
201 | */ | |
202 | struct lttng_kernel_session_creation_time { | |
203 | char iso8601[LTTNG_KERNEL_SESSION_CREATION_TIME_ISO8601_LEN]; | |
204 | } LTTNG_PACKED; | |
205 | ||
d01c0e56 MD |
206 | enum lttng_kernel_tracker_type { |
207 | LTTNG_KERNEL_TRACKER_UNKNOWN = -1, | |
208 | ||
209 | LTTNG_KERNEL_TRACKER_PID = 0, | |
210 | LTTNG_KERNEL_TRACKER_VPID = 1, | |
211 | LTTNG_KERNEL_TRACKER_UID = 2, | |
212 | LTTNG_KERNEL_TRACKER_VUID = 3, | |
213 | LTTNG_KERNEL_TRACKER_GID = 4, | |
214 | LTTNG_KERNEL_TRACKER_VGID = 5, | |
215 | }; | |
216 | ||
217 | struct lttng_kernel_tracker_args { | |
218 | enum lttng_kernel_tracker_type type; | |
219 | int32_t id; | |
220 | }; | |
221 | ||
93128a92 | 222 | #endif /* _LTTNG_KERNEL_H */ |