projects / lttng-tools.git / blame
| Commit | Line | Data |
|---|---|---|
| 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, | |
| d37ac3cd | 78 | LTTNG_KERNEL_CONTEXT_TIME_NS = 37, |
| 7d29a247 DG |
79 | }; |
| 80 | ||
| 81 | /* Perf counter attributes */ | |
| 82 | struct lttng_kernel_perf_counter_ctx { | |
| 83 | uint32_t type; | |
| 84 | uint64_t config; | |
| dbbb3ec5 | 85 | char name[LTTNG_KERNEL_SYM_NAME_LEN]; |
| 113373e4 | 86 | } LTTNG_PACKED; |
| 7d29a247 DG |
87 | |
| 88 | /* Event/Channel context */ | |
| dbbb3ec5 DG |
89 | #define LTTNG_KERNEL_CONTEXT_PADDING1 16 |
| 90 | #define LTTNG_KERNEL_CONTEXT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32 | |
| 7d29a247 DG |
91 | struct lttng_kernel_context { |
| 92 | enum lttng_kernel_context_type ctx; | |
| dbbb3ec5 DG |
93 | char padding[LTTNG_KERNEL_CONTEXT_PADDING1]; |
| 94 | ||
| 7d29a247 DG |
95 | union { |
| 96 | struct lttng_kernel_perf_counter_ctx perf_counter; | |
| dbbb3ec5 | 97 | char padding[LTTNG_KERNEL_CONTEXT_PADDING2]; |
| 7d29a247 | 98 | } u; |
| 113373e4 | 99 | } LTTNG_PACKED; |
| 9cb98350 | 100 | |
| 8f0d098b MD |
101 | struct lttng_kernel_kretprobe { |
| 102 | uint64_t addr; | |
| 103 | ||
| 104 | uint64_t offset; | |
| dbbb3ec5 | 105 | char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN]; |
| 113373e4 | 106 | } LTTNG_PACKED; |
| 8f0d098b | 107 | |
| 93128a92 | 108 | /* |
| 7d29a247 | 109 | * Either addr is used, or symbol_name and offset. |
| 93128a92 | 110 | */ |
| 7d29a247 DG |
111 | struct lttng_kernel_kprobe { |
| 112 | uint64_t addr; | |
| 113 | ||
| 114 | uint64_t offset; | |
| dbbb3ec5 | 115 | char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN]; |
| 113373e4 | 116 | } LTTNG_PACKED; |
| 9cb98350 | 117 | |
| 1ab8c2ad FD |
118 | struct lttng_kernel_uprobe { |
| 119 | int fd; | |
| 120 | } LTTNG_PACKED; | |
| 121 | ||
| 122 | struct lttng_kernel_event_callsite_uprobe { | |
| 123 | uint64_t offset; | |
| 124 | } LTTNG_PACKED; | |
| 125 | ||
| 126 | struct lttng_kernel_event_callsite { | |
| 127 | union { | |
| 128 | struct lttng_kernel_event_callsite_uprobe uprobe; | |
| 129 | } u; | |
| 130 | } LTTNG_PACKED; | |
| 131 | ||
| c863e5a6 FD |
132 | enum lttng_kernel_syscall_entryexit { |
| 133 | LTTNG_KERNEL_SYSCALL_ENTRYEXIT = 0, | |
| 134 | LTTNG_KERNEL_SYSCALL_ENTRY = 1, | |
| 135 | LTTNG_KERNEL_SYSCALL_EXIT = 2, | |
| 136 | }; | |
| 137 | ||
| 138 | enum lttng_kernel_syscall_abi { | |
| 139 | LTTNG_KERNEL_SYSCALL_ABI_ALL = 0, | |
| 140 | LTTNG_KERNEL_SYSCALL_ABI_NATIVE = 1, | |
| 141 | LTTNG_KERNEL_SYSCALL_ABI_COMPAT = 2, | |
| 142 | }; | |
| 143 | ||
| 144 | enum lttng_kernel_syscall_match { | |
| 145 | LTTNG_KERNEL_SYSCALL_MATCH_NAME = 0, | |
| 146 | LTTNG_KERNEL_SYSCALL_MATCH_NR = 1, | |
| 147 | }; | |
| 148 | ||
| 149 | struct lttng_kernel_syscall { | |
| 150 | uint8_t entryexit; /* enum lttng_kernel_syscall_entryexit */ | |
| 151 | uint8_t abi; /* enum lttng_kernel_syscall_abi */ | |
| 152 | uint8_t match; /* enum lttng_kernel_syscall_match */ | |
| 153 | uint8_t padding; | |
| 154 | uint32_t nr; /* For LTTNG_SYSCALL_MATCH_NR */ | |
| 155 | } LTTNG_PACKED; | |
| 156 | ||
| f05b5f07 | 157 | /* Function tracer */ |
| 7d29a247 | 158 | struct lttng_kernel_function { |
| dbbb3ec5 | 159 | char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN]; |
| 113373e4 | 160 | } LTTNG_PACKED; |
| 93128a92 | 161 | |
| 8e49ca12 | 162 | #define LTTNG_KERNEL_EVENT_PADDING1 8 |
| dbbb3ec5 | 163 | #define LTTNG_KERNEL_EVENT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32 |
| 9cb98350 | 164 | struct lttng_kernel_event { |
| dbbb3ec5 | 165 | char name[LTTNG_KERNEL_SYM_NAME_LEN]; |
| 9cb98350 | 166 | enum lttng_kernel_instrumentation instrumentation; |
| 8e49ca12 | 167 | uint64_t token; |
| dbbb3ec5 DG |
168 | char padding[LTTNG_KERNEL_EVENT_PADDING1]; |
| 169 | ||
| 9cb98350 JD |
170 | /* Per instrumentation type configuration */ |
| 171 | union { | |
| 8f0d098b | 172 | struct lttng_kernel_kretprobe kretprobe; |
| 7d29a247 DG |
173 | struct lttng_kernel_kprobe kprobe; |
| 174 | struct lttng_kernel_function ftrace; | |
| c863e5a6 FD |
175 | struct lttng_kernel_uprobe uprobe; |
| 176 | struct lttng_kernel_syscall syscall; | |
| dbbb3ec5 | 177 | char padding[LTTNG_KERNEL_EVENT_PADDING2]; |
| 9cb98350 | 178 | } u; |
| 113373e4 | 179 | } LTTNG_PACKED; |
| 93128a92 | 180 | |
| 9cb98350 | 181 | struct lttng_kernel_tracer_version { |
| a62a6556 MD |
182 | uint32_t major; |
| 183 | uint32_t minor; | |
| 9cb98350 | 184 | uint32_t patchlevel; |
| 113373e4 | 185 | } LTTNG_PACKED; |
| 93128a92 | 186 | |
| c052142c MD |
187 | struct lttng_kernel_tracer_abi_version { |
| 188 | uint32_t major; | |
| 189 | uint32_t minor; | |
| 190 | } LTTNG_PACKED; | |
| 191 | ||
| e80c3634 | 192 | struct lttng_kernel_syscall_mask { |
| 46820c8b | 193 | uint32_t len; /* in bits */ |
| e80c3634 MD |
194 | char mask[]; |
| 195 | } LTTNG_PACKED; | |
| 196 | ||
| 4dbc372b JD |
197 | /* |
| 198 | * kernel channel | |
| 199 | */ | |
| 200 | #define LTTNG_KERNEL_CHANNEL_PADDING1 LTTNG_SYMBOL_NAME_LEN + 32 | |
| 201 | struct lttng_kernel_channel { | |
| 202 | uint64_t subbuf_size; /* bytes */ | |
| 203 | uint64_t num_subbuf; /* power of 2 */ | |
| 204 | unsigned int switch_timer_interval; /* usec */ | |
| 205 | unsigned int read_timer_interval; /* usec */ | |
| 206 | enum lttng_event_output output; /* splice, mmap */ | |
| 207 | ||
| 208 | int overwrite; /* 1: overwrite, 0: discard */ | |
| 209 | char padding[LTTNG_KERNEL_CHANNEL_PADDING1]; | |
| 113373e4 | 210 | } LTTNG_PACKED; |
| d0254c7c | 211 | |
| 00a62084 MD |
212 | #define KERNEL_FILTER_BYTECODE_MAX_LEN 65536 |
| 213 | struct lttng_kernel_filter_bytecode { | |
| 214 | uint32_t len; | |
| 215 | uint32_t reloc_offset; | |
| 216 | uint64_t seqnum; | |
| 217 | char data[0]; | |
| 218 | } LTTNG_PACKED; | |
| 219 | ||
| 8ff4109e JR |
220 | /* |
| 221 | * kernel session name | |
| 222 | */ | |
| 223 | struct lttng_kernel_session_name { | |
| 224 | char name[LTTNG_KERNEL_SESSION_NAME_LEN]; | |
| 225 | } LTTNG_PACKED; | |
| 226 | ||
| e04b2181 JR |
227 | /* |
| 228 | * kernel session creation datetime | |
| 229 | */ | |
| 230 | struct lttng_kernel_session_creation_time { | |
| 231 | char iso8601[LTTNG_KERNEL_SESSION_CREATION_TIME_ISO8601_LEN]; | |
| 232 | } LTTNG_PACKED; | |
| 233 | ||
| d01c0e56 MD |
234 | enum lttng_kernel_tracker_type { |
| 235 | LTTNG_KERNEL_TRACKER_UNKNOWN = -1, | |
| 236 | ||
| 237 | LTTNG_KERNEL_TRACKER_PID = 0, | |
| 238 | LTTNG_KERNEL_TRACKER_VPID = 1, | |
| 239 | LTTNG_KERNEL_TRACKER_UID = 2, | |
| 240 | LTTNG_KERNEL_TRACKER_VUID = 3, | |
| 241 | LTTNG_KERNEL_TRACKER_GID = 4, | |
| 242 | LTTNG_KERNEL_TRACKER_VGID = 5, | |
| 243 | }; | |
| 244 | ||
| 245 | struct lttng_kernel_tracker_args { | |
| 246 | enum lttng_kernel_tracker_type type; | |
| 247 | int32_t id; | |
| 248 | }; | |
| 249 | ||
| 93128a92 | 250 | #endif /* _LTTNG_KERNEL_H */ |