Commit | Line | Data |
---|---|---|
93128a92 | 1 | /* |
ab5be9fa | 2 | * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
a4eb26f0 | 3 | * Copyright (C) 2011 EfficiOS Inc. |
93128a92 | 4 | * |
ab5be9fa | 5 | * SPDX-License-Identifier: GPL-2.0-only |
93128a92 | 6 | * |
93128a92 DG |
7 | */ |
8 | ||
9 | #ifndef _LTTNG_KERNEL_H | |
10 | #define _LTTNG_KERNEL_H | |
11 | ||
e848fc76 | 12 | #include <stdint.h> |
113373e4 | 13 | #include <common/macros.h> |
0ef03255 FD |
14 | #include <lttng/constant.h> |
15 | #include <lttng/event.h> | |
e848fc76 | 16 | |
dbbb3ec5 | 17 | #define LTTNG_KERNEL_SYM_NAME_LEN 256 |
0ef03255 | 18 | #define LTTNG_KERNEL_MAX_UPROBE_NUM 32 |
8ff4109e | 19 | #define LTTNG_KERNEL_SESSION_NAME_LEN 256 |
e04b2181 | 20 | #define LTTNG_KERNEL_SESSION_CREATION_TIME_ISO8601_LEN 26 |
9cb98350 | 21 | |
7d29a247 DG |
22 | /* |
23 | * LTTng DebugFS ABI structures. | |
24 | * | |
25 | * This is the kernel ABI copied from lttng-modules tree. | |
26 | */ | |
27 | ||
9cb98350 | 28 | enum lttng_kernel_instrumentation { |
5f822d0a | 29 | LTTNG_KERNEL_ALL = -1, /* Used within lttng-tools */ |
e6ddca71 DG |
30 | LTTNG_KERNEL_TRACEPOINT = 0, |
31 | LTTNG_KERNEL_KPROBE = 1, | |
32 | LTTNG_KERNEL_FUNCTION = 2, | |
8f0d098b | 33 | LTTNG_KERNEL_KRETPROBE = 3, |
0133c199 | 34 | LTTNG_KERNEL_NOOP = 4, /* not hooked */ |
a54bd42d | 35 | LTTNG_KERNEL_SYSCALL = 5, |
1ab8c2ad | 36 | LTTNG_KERNEL_UPROBE = 6, |
e6ddca71 DG |
37 | }; |
38 | ||
7d29a247 DG |
39 | enum lttng_kernel_context_type { |
40 | LTTNG_KERNEL_CONTEXT_PID = 0, | |
aa3514e9 | 41 | LTTNG_KERNEL_CONTEXT_PERF_CPU_COUNTER = 1, |
9197c5c4 | 42 | LTTNG_KERNEL_CONTEXT_PROCNAME = 2, |
7d29a247 DG |
43 | LTTNG_KERNEL_CONTEXT_PRIO = 3, |
44 | LTTNG_KERNEL_CONTEXT_NICE = 4, | |
45 | LTTNG_KERNEL_CONTEXT_VPID = 5, | |
46 | LTTNG_KERNEL_CONTEXT_TID = 6, | |
47 | LTTNG_KERNEL_CONTEXT_VTID = 7, | |
48 | LTTNG_KERNEL_CONTEXT_PPID = 8, | |
49 | LTTNG_KERNEL_CONTEXT_VPPID = 9, | |
54773d68 | 50 | LTTNG_KERNEL_CONTEXT_HOSTNAME = 10, |
33e801a9 | 51 | LTTNG_KERNEL_CONTEXT_CPU_ID = 11, |
1ae5e83e JD |
52 | LTTNG_KERNEL_CONTEXT_INTERRUPTIBLE = 12, |
53 | LTTNG_KERNEL_CONTEXT_PREEMPTIBLE = 13, | |
54 | LTTNG_KERNEL_CONTEXT_NEED_RESCHEDULE = 14, | |
55 | LTTNG_KERNEL_CONTEXT_MIGRATABLE = 15, | |
373148e9 FG |
56 | LTTNG_KERNEL_CONTEXT_CALLSTACK_KERNEL = 16, |
57 | LTTNG_KERNEL_CONTEXT_CALLSTACK_USER = 17, | |
40e14884 MJ |
58 | LTTNG_KERNEL_CONTEXT_CGROUP_NS = 18, |
59 | LTTNG_KERNEL_CONTEXT_IPC_NS = 19, | |
60 | LTTNG_KERNEL_CONTEXT_MNT_NS = 20, | |
61 | LTTNG_KERNEL_CONTEXT_NET_NS = 21, | |
62 | LTTNG_KERNEL_CONTEXT_PID_NS = 22, | |
63 | LTTNG_KERNEL_CONTEXT_USER_NS = 23, | |
64 | LTTNG_KERNEL_CONTEXT_UTS_NS = 24, | |
499cbfa1 MJ |
65 | LTTNG_KERNEL_CONTEXT_UID = 25, |
66 | LTTNG_KERNEL_CONTEXT_EUID = 26, | |
67 | LTTNG_KERNEL_CONTEXT_SUID = 27, | |
68 | LTTNG_KERNEL_CONTEXT_GID = 28, | |
69 | LTTNG_KERNEL_CONTEXT_EGID = 29, | |
70 | LTTNG_KERNEL_CONTEXT_SGID = 30, | |
71 | LTTNG_KERNEL_CONTEXT_VUID = 31, | |
72 | LTTNG_KERNEL_CONTEXT_VEUID = 32, | |
73 | LTTNG_KERNEL_CONTEXT_VSUID = 33, | |
74 | LTTNG_KERNEL_CONTEXT_VGID = 34, | |
75 | LTTNG_KERNEL_CONTEXT_VEGID = 35, | |
76 | LTTNG_KERNEL_CONTEXT_VSGID = 36, | |
7d29a247 DG |
77 | }; |
78 | ||
79 | /* Perf counter attributes */ | |
80 | struct lttng_kernel_perf_counter_ctx { | |
81 | uint32_t type; | |
82 | uint64_t config; | |
dbbb3ec5 | 83 | char name[LTTNG_KERNEL_SYM_NAME_LEN]; |
113373e4 | 84 | } LTTNG_PACKED; |
7d29a247 DG |
85 | |
86 | /* Event/Channel context */ | |
dbbb3ec5 DG |
87 | #define LTTNG_KERNEL_CONTEXT_PADDING1 16 |
88 | #define LTTNG_KERNEL_CONTEXT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32 | |
7d29a247 DG |
89 | struct lttng_kernel_context { |
90 | enum lttng_kernel_context_type ctx; | |
dbbb3ec5 DG |
91 | char padding[LTTNG_KERNEL_CONTEXT_PADDING1]; |
92 | ||
7d29a247 DG |
93 | union { |
94 | struct lttng_kernel_perf_counter_ctx perf_counter; | |
dbbb3ec5 | 95 | char padding[LTTNG_KERNEL_CONTEXT_PADDING2]; |
7d29a247 | 96 | } u; |
113373e4 | 97 | } LTTNG_PACKED; |
9cb98350 | 98 | |
8f0d098b MD |
99 | struct lttng_kernel_kretprobe { |
100 | uint64_t addr; | |
101 | ||
102 | uint64_t offset; | |
dbbb3ec5 | 103 | char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN]; |
113373e4 | 104 | } LTTNG_PACKED; |
8f0d098b | 105 | |
93128a92 | 106 | /* |
7d29a247 | 107 | * Either addr is used, or symbol_name and offset. |
93128a92 | 108 | */ |
7d29a247 DG |
109 | struct lttng_kernel_kprobe { |
110 | uint64_t addr; | |
111 | ||
112 | uint64_t offset; | |
dbbb3ec5 | 113 | char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN]; |
113373e4 | 114 | } LTTNG_PACKED; |
9cb98350 | 115 | |
1ab8c2ad FD |
116 | struct lttng_kernel_uprobe { |
117 | int fd; | |
118 | } LTTNG_PACKED; | |
119 | ||
120 | struct lttng_kernel_event_callsite_uprobe { | |
121 | uint64_t offset; | |
122 | } LTTNG_PACKED; | |
123 | ||
124 | struct lttng_kernel_event_callsite { | |
125 | union { | |
126 | struct lttng_kernel_event_callsite_uprobe uprobe; | |
127 | } u; | |
128 | } LTTNG_PACKED; | |
129 | ||
f05b5f07 | 130 | /* Function tracer */ |
7d29a247 | 131 | struct lttng_kernel_function { |
dbbb3ec5 | 132 | char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN]; |
113373e4 | 133 | } LTTNG_PACKED; |
93128a92 | 134 | |
dbbb3ec5 DG |
135 | #define LTTNG_KERNEL_EVENT_PADDING1 16 |
136 | #define LTTNG_KERNEL_EVENT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32 | |
9cb98350 | 137 | struct lttng_kernel_event { |
dbbb3ec5 | 138 | char name[LTTNG_KERNEL_SYM_NAME_LEN]; |
9cb98350 | 139 | enum lttng_kernel_instrumentation instrumentation; |
dbbb3ec5 DG |
140 | char padding[LTTNG_KERNEL_EVENT_PADDING1]; |
141 | ||
9cb98350 JD |
142 | /* Per instrumentation type configuration */ |
143 | union { | |
8f0d098b | 144 | struct lttng_kernel_kretprobe kretprobe; |
7d29a247 | 145 | struct lttng_kernel_kprobe kprobe; |
1ab8c2ad | 146 | struct lttng_kernel_uprobe uprobe; |
7d29a247 | 147 | struct lttng_kernel_function ftrace; |
dbbb3ec5 | 148 | char padding[LTTNG_KERNEL_EVENT_PADDING2]; |
9cb98350 | 149 | } u; |
113373e4 | 150 | } LTTNG_PACKED; |
93128a92 | 151 | |
9cb98350 | 152 | struct lttng_kernel_tracer_version { |
a62a6556 MD |
153 | uint32_t major; |
154 | uint32_t minor; | |
9cb98350 | 155 | uint32_t patchlevel; |
113373e4 | 156 | } LTTNG_PACKED; |
93128a92 | 157 | |
c052142c MD |
158 | struct lttng_kernel_tracer_abi_version { |
159 | uint32_t major; | |
160 | uint32_t minor; | |
161 | } LTTNG_PACKED; | |
162 | ||
e80c3634 | 163 | struct lttng_kernel_syscall_mask { |
46820c8b | 164 | uint32_t len; /* in bits */ |
e80c3634 MD |
165 | char mask[]; |
166 | } LTTNG_PACKED; | |
167 | ||
4dbc372b JD |
168 | /* |
169 | * kernel channel | |
170 | */ | |
171 | #define LTTNG_KERNEL_CHANNEL_PADDING1 LTTNG_SYMBOL_NAME_LEN + 32 | |
172 | struct lttng_kernel_channel { | |
173 | uint64_t subbuf_size; /* bytes */ | |
174 | uint64_t num_subbuf; /* power of 2 */ | |
175 | unsigned int switch_timer_interval; /* usec */ | |
176 | unsigned int read_timer_interval; /* usec */ | |
177 | enum lttng_event_output output; /* splice, mmap */ | |
178 | ||
179 | int overwrite; /* 1: overwrite, 0: discard */ | |
180 | char padding[LTTNG_KERNEL_CHANNEL_PADDING1]; | |
113373e4 | 181 | } LTTNG_PACKED; |
d0254c7c | 182 | |
00a62084 MD |
183 | #define KERNEL_FILTER_BYTECODE_MAX_LEN 65536 |
184 | struct lttng_kernel_filter_bytecode { | |
185 | uint32_t len; | |
186 | uint32_t reloc_offset; | |
187 | uint64_t seqnum; | |
188 | char data[0]; | |
189 | } LTTNG_PACKED; | |
190 | ||
8ff4109e JR |
191 | /* |
192 | * kernel session name | |
193 | */ | |
194 | struct lttng_kernel_session_name { | |
195 | char name[LTTNG_KERNEL_SESSION_NAME_LEN]; | |
196 | } LTTNG_PACKED; | |
197 | ||
e04b2181 JR |
198 | /* |
199 | * kernel session creation datetime | |
200 | */ | |
201 | struct lttng_kernel_session_creation_time { | |
202 | char iso8601[LTTNG_KERNEL_SESSION_CREATION_TIME_ISO8601_LEN]; | |
203 | } LTTNG_PACKED; | |
204 | ||
d01c0e56 MD |
205 | enum lttng_kernel_tracker_type { |
206 | LTTNG_KERNEL_TRACKER_UNKNOWN = -1, | |
207 | ||
208 | LTTNG_KERNEL_TRACKER_PID = 0, | |
209 | LTTNG_KERNEL_TRACKER_VPID = 1, | |
210 | LTTNG_KERNEL_TRACKER_UID = 2, | |
211 | LTTNG_KERNEL_TRACKER_VUID = 3, | |
212 | LTTNG_KERNEL_TRACKER_GID = 4, | |
213 | LTTNG_KERNEL_TRACKER_VGID = 5, | |
214 | }; | |
215 | ||
216 | struct lttng_kernel_tracker_args { | |
217 | enum lttng_kernel_tracker_type type; | |
218 | int32_t id; | |
219 | }; | |
220 | ||
93128a92 | 221 | #endif /* _LTTNG_KERNEL_H */ |