| 1 | /* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only) |
| 2 | * |
| 3 | * lttng/abi.h |
| 4 | * |
| 5 | * LTTng ABI header |
| 6 | * |
| 7 | * Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 8 | */ |
| 9 | |
| 10 | #ifndef _LTTNG_ABI_H |
| 11 | #define _LTTNG_ABI_H |
| 12 | |
| 13 | #include <linux/fs.h> |
| 14 | #include <linux/types.h> |
| 15 | |
| 16 | /* |
| 17 | * Major/minor version of ABI exposed to lttng tools. Major number |
| 18 | * should be increased when an incompatible ABI change is done. |
| 19 | */ |
| 20 | #define LTTNG_MODULES_ABI_MAJOR_VERSION 2 |
| 21 | #define LTTNG_MODULES_ABI_MINOR_VERSION 5 |
| 22 | |
| 23 | #define LTTNG_KERNEL_SYM_NAME_LEN 256 |
| 24 | #define LTTNG_KERNEL_SESSION_NAME_LEN 256 |
| 25 | #define LTTNG_KERNEL_SESSION_CREATION_TIME_ISO8601_LEN 26 |
| 26 | |
| 27 | enum lttng_kernel_instrumentation { |
| 28 | LTTNG_KERNEL_TRACEPOINT = 0, |
| 29 | LTTNG_KERNEL_KPROBE = 1, |
| 30 | LTTNG_KERNEL_FUNCTION = 2, |
| 31 | LTTNG_KERNEL_KRETPROBE = 3, |
| 32 | LTTNG_KERNEL_NOOP = 4, /* not hooked */ |
| 33 | LTTNG_KERNEL_SYSCALL = 5, |
| 34 | LTTNG_KERNEL_UPROBE = 6, |
| 35 | }; |
| 36 | |
| 37 | /* |
| 38 | * LTTng consumer mode |
| 39 | */ |
| 40 | enum lttng_kernel_output { |
| 41 | LTTNG_KERNEL_SPLICE = 0, |
| 42 | LTTNG_KERNEL_MMAP = 1, |
| 43 | }; |
| 44 | |
| 45 | /* |
| 46 | * LTTng DebugFS ABI structures. |
| 47 | */ |
| 48 | #define LTTNG_KERNEL_CHANNEL_PADDING LTTNG_KERNEL_SYM_NAME_LEN + 32 |
| 49 | struct lttng_kernel_channel { |
| 50 | uint64_t subbuf_size; /* in bytes */ |
| 51 | uint64_t num_subbuf; |
| 52 | unsigned int switch_timer_interval; /* usecs */ |
| 53 | unsigned int read_timer_interval; /* usecs */ |
| 54 | uint32_t output; /* enum lttng_kernel_output (splice, mmap) */ |
| 55 | int overwrite; /* 1: overwrite, 0: discard */ |
| 56 | char padding[LTTNG_KERNEL_CHANNEL_PADDING]; |
| 57 | } __attribute__((packed)); |
| 58 | |
| 59 | struct lttng_kernel_kretprobe { |
| 60 | uint64_t addr; |
| 61 | |
| 62 | uint64_t offset; |
| 63 | char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN]; |
| 64 | } __attribute__((packed)); |
| 65 | |
| 66 | /* |
| 67 | * Either addr is used, or symbol_name and offset. |
| 68 | */ |
| 69 | struct lttng_kernel_kprobe { |
| 70 | uint64_t addr; |
| 71 | |
| 72 | uint64_t offset; |
| 73 | char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN]; |
| 74 | } __attribute__((packed)); |
| 75 | |
| 76 | struct lttng_kernel_function_tracer { |
| 77 | char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN]; |
| 78 | } __attribute__((packed)); |
| 79 | |
| 80 | struct lttng_kernel_uprobe { |
| 81 | int fd; |
| 82 | } __attribute__((packed)); |
| 83 | |
| 84 | struct lttng_kernel_event_callsite_uprobe { |
| 85 | uint64_t offset; |
| 86 | } __attribute__((packed)); |
| 87 | |
| 88 | struct lttng_kernel_event_callsite { |
| 89 | union { |
| 90 | struct lttng_kernel_event_callsite_uprobe uprobe; |
| 91 | } u; |
| 92 | } __attribute__((packed)); |
| 93 | |
| 94 | enum lttng_kernel_syscall_entryexit { |
| 95 | LTTNG_KERNEL_SYSCALL_ENTRYEXIT = 0, |
| 96 | LTTNG_KERNEL_SYSCALL_ENTRY = 1, |
| 97 | LTTNG_KERNEL_SYSCALL_EXIT = 2, |
| 98 | }; |
| 99 | |
| 100 | enum lttng_kernel_syscall_abi { |
| 101 | LTTNG_KERNEL_SYSCALL_ABI_ALL = 0, |
| 102 | LTTNG_KERNEL_SYSCALL_ABI_NATIVE = 1, |
| 103 | LTTNG_KERNEL_SYSCALL_ABI_COMPAT = 2, |
| 104 | }; |
| 105 | |
| 106 | enum lttng_kernel_syscall_match { |
| 107 | LTTNG_KERNEL_SYSCALL_MATCH_NAME = 0, |
| 108 | LTTNG_KERNEL_SYSCALL_MATCH_NR = 1, /* Not implemented. */ |
| 109 | }; |
| 110 | |
| 111 | struct lttng_kernel_syscall { |
| 112 | uint8_t entryexit; /* enum lttng_kernel_syscall_entryexit */ |
| 113 | uint8_t abi; /* enum lttng_kernel_syscall_abi */ |
| 114 | uint8_t match; /* enum lttng_kernel_syscall_match */ |
| 115 | uint8_t padding; |
| 116 | uint32_t nr; /* For LTTNG_SYSCALL_MATCH_NR */ |
| 117 | } __attribute__((packed)); |
| 118 | |
| 119 | /* |
| 120 | * For syscall tracing, name = "*" means "enable all". |
| 121 | */ |
| 122 | #define LTTNG_KERNEL_EVENT_PADDING1 8 |
| 123 | #define LTTNG_KERNEL_EVENT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32 |
| 124 | struct lttng_kernel_event { |
| 125 | char name[LTTNG_KERNEL_SYM_NAME_LEN]; /* event name */ |
| 126 | uint32_t instrumentation; /* enum lttng_kernel_instrumentation */ |
| 127 | uint64_t token; /* User-provided token */ |
| 128 | char padding[LTTNG_KERNEL_EVENT_PADDING1]; |
| 129 | |
| 130 | /* Per instrumentation type configuration */ |
| 131 | union { |
| 132 | struct lttng_kernel_kretprobe kretprobe; |
| 133 | struct lttng_kernel_kprobe kprobe; |
| 134 | struct lttng_kernel_function_tracer ftrace; |
| 135 | struct lttng_kernel_uprobe uprobe; |
| 136 | struct lttng_kernel_syscall syscall; |
| 137 | char padding[LTTNG_KERNEL_EVENT_PADDING2]; |
| 138 | } u; |
| 139 | } __attribute__((packed)); |
| 140 | |
| 141 | #define LTTNG_KERNEL_EVENT_NOTIFIER_PADDING1 16 |
| 142 | struct lttng_kernel_event_notifier { |
| 143 | struct lttng_kernel_event event; |
| 144 | uint64_t error_counter_index; |
| 145 | |
| 146 | char padding[LTTNG_KERNEL_EVENT_NOTIFIER_PADDING1]; |
| 147 | } __attribute__((packed)); |
| 148 | |
| 149 | enum lttng_kernel_counter_arithmetic { |
| 150 | LTTNG_KERNEL_COUNTER_ARITHMETIC_MODULAR = 1, |
| 151 | }; |
| 152 | |
| 153 | enum lttng_kernel_counter_bitness { |
| 154 | LTTNG_KERNEL_COUNTER_BITNESS_32 = 1, |
| 155 | LTTNG_KERNEL_COUNTER_BITNESS_64 = 2, |
| 156 | }; |
| 157 | |
| 158 | struct lttng_kernel_counter_dimension { |
| 159 | uint64_t size; |
| 160 | uint64_t underflow_index; |
| 161 | uint64_t overflow_index; |
| 162 | uint8_t has_underflow; |
| 163 | uint8_t has_overflow; |
| 164 | } __attribute__((packed)); |
| 165 | |
| 166 | #define LTTNG_KERNEL_COUNTER_DIMENSION_MAX 4 |
| 167 | struct lttng_kernel_counter_conf { |
| 168 | uint32_t arithmetic; /* enum lttng_kernel_counter_arithmetic */ |
| 169 | uint32_t bitness; /* enum lttng_kernel_counter_bitness */ |
| 170 | uint32_t number_dimensions; |
| 171 | int64_t global_sum_step; |
| 172 | struct lttng_kernel_counter_dimension dimensions[LTTNG_KERNEL_COUNTER_DIMENSION_MAX]; |
| 173 | } __attribute__((packed)); |
| 174 | |
| 175 | struct lttng_kernel_counter_index { |
| 176 | uint32_t number_dimensions; |
| 177 | uint64_t dimension_indexes[LTTNG_KERNEL_COUNTER_DIMENSION_MAX]; |
| 178 | } __attribute__((packed)); |
| 179 | |
| 180 | struct lttng_kernel_counter_value { |
| 181 | int64_t value; |
| 182 | uint8_t underflow; |
| 183 | uint8_t overflow; |
| 184 | } __attribute__((packed)); |
| 185 | |
| 186 | #define LTTNG_KERNEL_COUNTER_READ_PADDING 32 |
| 187 | struct lttng_kernel_counter_read { |
| 188 | struct lttng_kernel_counter_index index; |
| 189 | int32_t cpu; /* -1 for global counter, >= 0 for specific cpu. */ |
| 190 | struct lttng_kernel_counter_value value; /* output */ |
| 191 | char padding[LTTNG_KERNEL_COUNTER_READ_PADDING]; |
| 192 | } __attribute__((packed)); |
| 193 | |
| 194 | #define LTTNG_KERNEL_COUNTER_AGGREGATE_PADDING 32 |
| 195 | struct lttng_kernel_counter_aggregate { |
| 196 | struct lttng_kernel_counter_index index; |
| 197 | struct lttng_kernel_counter_value value; /* output */ |
| 198 | char padding[LTTNG_KERNEL_COUNTER_AGGREGATE_PADDING]; |
| 199 | } __attribute__((packed)); |
| 200 | |
| 201 | #define LTTNG_KERNEL_COUNTER_CLEAR_PADDING 32 |
| 202 | struct lttng_kernel_counter_clear { |
| 203 | struct lttng_kernel_counter_index index; |
| 204 | char padding[LTTNG_KERNEL_COUNTER_CLEAR_PADDING]; |
| 205 | } __attribute__((packed)); |
| 206 | |
| 207 | #define LTTNG_KERNEL_EVENT_NOTIFIER_NOTIFICATION_PADDING 32 |
| 208 | struct lttng_kernel_event_notifier_notification { |
| 209 | uint64_t token; |
| 210 | uint16_t capture_buf_size; |
| 211 | char padding[LTTNG_KERNEL_EVENT_NOTIFIER_NOTIFICATION_PADDING]; |
| 212 | } __attribute__((packed)); |
| 213 | |
| 214 | struct lttng_kernel_tracer_version { |
| 215 | uint32_t major; |
| 216 | uint32_t minor; |
| 217 | uint32_t patchlevel; |
| 218 | } __attribute__((packed)); |
| 219 | |
| 220 | struct lttng_kernel_tracer_abi_version { |
| 221 | uint32_t major; |
| 222 | uint32_t minor; |
| 223 | } __attribute__((packed)); |
| 224 | |
| 225 | struct lttng_kernel_session_name { |
| 226 | char name[LTTNG_KERNEL_SESSION_NAME_LEN]; |
| 227 | } __attribute__((packed)); |
| 228 | |
| 229 | struct lttng_kernel_session_creation_time { |
| 230 | char iso8601[LTTNG_KERNEL_SESSION_CREATION_TIME_ISO8601_LEN]; |
| 231 | } __attribute__((packed)); |
| 232 | |
| 233 | enum lttng_kernel_calibrate_type { |
| 234 | LTTNG_KERNEL_CALIBRATE_KRETPROBE, |
| 235 | }; |
| 236 | |
| 237 | struct lttng_kernel_calibrate { |
| 238 | uint32_t type; /* enum lttng_kernel_calibrate_type (input) */ |
| 239 | } __attribute__((packed)); |
| 240 | |
| 241 | struct lttng_kernel_syscall_mask { |
| 242 | uint32_t len; /* in bits */ |
| 243 | char mask[]; |
| 244 | } __attribute__((packed)); |
| 245 | |
| 246 | enum lttng_kernel_context_type { |
| 247 | LTTNG_KERNEL_CONTEXT_PID = 0, |
| 248 | LTTNG_KERNEL_CONTEXT_PERF_COUNTER = 1, |
| 249 | LTTNG_KERNEL_CONTEXT_PROCNAME = 2, |
| 250 | LTTNG_KERNEL_CONTEXT_PRIO = 3, |
| 251 | LTTNG_KERNEL_CONTEXT_NICE = 4, |
| 252 | LTTNG_KERNEL_CONTEXT_VPID = 5, |
| 253 | LTTNG_KERNEL_CONTEXT_TID = 6, |
| 254 | LTTNG_KERNEL_CONTEXT_VTID = 7, |
| 255 | LTTNG_KERNEL_CONTEXT_PPID = 8, |
| 256 | LTTNG_KERNEL_CONTEXT_VPPID = 9, |
| 257 | LTTNG_KERNEL_CONTEXT_HOSTNAME = 10, |
| 258 | LTTNG_KERNEL_CONTEXT_CPU_ID = 11, |
| 259 | LTTNG_KERNEL_CONTEXT_INTERRUPTIBLE = 12, |
| 260 | LTTNG_KERNEL_CONTEXT_PREEMPTIBLE = 13, |
| 261 | LTTNG_KERNEL_CONTEXT_NEED_RESCHEDULE = 14, |
| 262 | LTTNG_KERNEL_CONTEXT_MIGRATABLE = 15, |
| 263 | LTTNG_KERNEL_CONTEXT_CALLSTACK_KERNEL = 16, |
| 264 | LTTNG_KERNEL_CONTEXT_CALLSTACK_USER = 17, |
| 265 | LTTNG_KERNEL_CONTEXT_CGROUP_NS = 18, |
| 266 | LTTNG_KERNEL_CONTEXT_IPC_NS = 19, |
| 267 | LTTNG_KERNEL_CONTEXT_MNT_NS = 20, |
| 268 | LTTNG_KERNEL_CONTEXT_NET_NS = 21, |
| 269 | LTTNG_KERNEL_CONTEXT_PID_NS = 22, |
| 270 | LTTNG_KERNEL_CONTEXT_USER_NS = 23, |
| 271 | LTTNG_KERNEL_CONTEXT_UTS_NS = 24, |
| 272 | LTTNG_KERNEL_CONTEXT_UID = 25, |
| 273 | LTTNG_KERNEL_CONTEXT_EUID = 26, |
| 274 | LTTNG_KERNEL_CONTEXT_SUID = 27, |
| 275 | LTTNG_KERNEL_CONTEXT_GID = 28, |
| 276 | LTTNG_KERNEL_CONTEXT_EGID = 29, |
| 277 | LTTNG_KERNEL_CONTEXT_SGID = 30, |
| 278 | LTTNG_KERNEL_CONTEXT_VUID = 31, |
| 279 | LTTNG_KERNEL_CONTEXT_VEUID = 32, |
| 280 | LTTNG_KERNEL_CONTEXT_VSUID = 33, |
| 281 | LTTNG_KERNEL_CONTEXT_VGID = 34, |
| 282 | LTTNG_KERNEL_CONTEXT_VEGID = 35, |
| 283 | LTTNG_KERNEL_CONTEXT_VSGID = 36, |
| 284 | LTTNG_KERNEL_CONTEXT_TIME_NS = 37, |
| 285 | }; |
| 286 | |
| 287 | struct lttng_kernel_perf_counter_ctx { |
| 288 | uint32_t type; |
| 289 | uint64_t config; |
| 290 | char name[LTTNG_KERNEL_SYM_NAME_LEN]; |
| 291 | } __attribute__((packed)); |
| 292 | |
| 293 | #define LTTNG_KERNEL_CONTEXT_PADDING1 16 |
| 294 | #define LTTNG_KERNEL_CONTEXT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32 |
| 295 | struct lttng_kernel_context { |
| 296 | uint32_t ctx; /*enum lttng_kernel_context_type */ |
| 297 | char padding[LTTNG_KERNEL_CONTEXT_PADDING1]; |
| 298 | |
| 299 | union { |
| 300 | struct lttng_kernel_perf_counter_ctx perf_counter; |
| 301 | char padding[LTTNG_KERNEL_CONTEXT_PADDING2]; |
| 302 | } u; |
| 303 | } __attribute__((packed)); |
| 304 | |
| 305 | #define LTTNG_KERNEL_FILTER_BYTECODE_MAX_LEN 65536 |
| 306 | struct lttng_kernel_filter_bytecode { |
| 307 | uint32_t len; |
| 308 | uint32_t reloc_offset; |
| 309 | uint64_t seqnum; |
| 310 | char data[0]; |
| 311 | } __attribute__((packed)); |
| 312 | |
| 313 | #define LTTNG_KERNEL_CAPTURE_BYTECODE_MAX_LEN 65536 |
| 314 | struct lttng_kernel_capture_bytecode { |
| 315 | uint32_t len; |
| 316 | uint32_t reloc_offset; |
| 317 | uint64_t seqnum; |
| 318 | char data[0]; |
| 319 | } __attribute__((packed)); |
| 320 | |
| 321 | enum lttng_kernel_tracker_type { |
| 322 | LTTNG_KERNEL_TRACKER_UNKNOWN = -1, |
| 323 | |
| 324 | LTTNG_KERNEL_TRACKER_PID = 0, |
| 325 | LTTNG_KERNEL_TRACKER_VPID = 1, |
| 326 | LTTNG_KERNEL_TRACKER_UID = 2, |
| 327 | LTTNG_KERNEL_TRACKER_VUID = 3, |
| 328 | LTTNG_KERNEL_TRACKER_GID = 4, |
| 329 | LTTNG_KERNEL_TRACKER_VGID = 5, |
| 330 | }; |
| 331 | |
| 332 | struct lttng_kernel_tracker_args { |
| 333 | uint32_t type; /* enum lttng_kernel_tracker_type */ |
| 334 | int32_t id; |
| 335 | }; |
| 336 | |
| 337 | /* LTTng file descriptor ioctl */ |
| 338 | /* lttng/abi-old.h reserve 0x40, 0x41, 0x42, 0x43, and 0x44. */ |
| 339 | #define LTTNG_KERNEL_SESSION _IO(0xF6, 0x45) |
| 340 | #define LTTNG_KERNEL_TRACER_VERSION \ |
| 341 | _IOR(0xF6, 0x46, struct lttng_kernel_tracer_version) |
| 342 | #define LTTNG_KERNEL_TRACEPOINT_LIST _IO(0xF6, 0x47) |
| 343 | #define LTTNG_KERNEL_WAIT_QUIESCENT _IO(0xF6, 0x48) |
| 344 | #define LTTNG_KERNEL_CALIBRATE \ |
| 345 | _IOWR(0xF6, 0x49, struct lttng_kernel_calibrate) |
| 346 | #define LTTNG_KERNEL_SYSCALL_LIST _IO(0xF6, 0x4A) |
| 347 | #define LTTNG_KERNEL_TRACER_ABI_VERSION \ |
| 348 | _IOR(0xF6, 0x4B, struct lttng_kernel_tracer_abi_version) |
| 349 | #define LTTNG_KERNEL_EVENT_NOTIFIER_GROUP_CREATE _IO(0xF6, 0x4C) |
| 350 | |
| 351 | /* Session FD ioctl */ |
| 352 | /* lttng/abi-old.h reserve 0x50, 0x51, 0x52, and 0x53. */ |
| 353 | #define LTTNG_KERNEL_METADATA \ |
| 354 | _IOW(0xF6, 0x54, struct lttng_kernel_channel) |
| 355 | #define LTTNG_KERNEL_CHANNEL \ |
| 356 | _IOW(0xF6, 0x55, struct lttng_kernel_channel) |
| 357 | #define LTTNG_KERNEL_SESSION_START _IO(0xF6, 0x56) |
| 358 | #define LTTNG_KERNEL_SESSION_STOP _IO(0xF6, 0x57) |
| 359 | #define LTTNG_KERNEL_SESSION_TRACK_PID \ |
| 360 | _IOR(0xF6, 0x58, int32_t) |
| 361 | #define LTTNG_KERNEL_SESSION_UNTRACK_PID \ |
| 362 | _IOR(0xF6, 0x59, int32_t) |
| 363 | |
| 364 | /* |
| 365 | * ioctl 0x58 and 0x59 are duplicated here. It works, since _IOR vs _IO |
| 366 | * are generating two different ioctl numbers, but this was not done on |
| 367 | * purpose. We should generally try to avoid those duplications. |
| 368 | */ |
| 369 | #define LTTNG_KERNEL_SESSION_LIST_TRACKER_PIDS _IO(0xF6, 0x58) |
| 370 | #define LTTNG_KERNEL_SESSION_METADATA_REGEN _IO(0xF6, 0x59) |
| 371 | |
| 372 | /* lttng/abi-old.h reserve 0x5A and 0x5B. */ |
| 373 | #define LTTNG_KERNEL_SESSION_STATEDUMP _IO(0xF6, 0x5C) |
| 374 | #define LTTNG_KERNEL_SESSION_SET_NAME \ |
| 375 | _IOR(0xF6, 0x5D, struct lttng_kernel_session_name) |
| 376 | #define LTTNG_KERNEL_SESSION_SET_CREATION_TIME \ |
| 377 | _IOR(0xF6, 0x5E, struct lttng_kernel_session_creation_time) |
| 378 | |
| 379 | /* Channel FD ioctl */ |
| 380 | /* lttng/abi-old.h reserve 0x60 and 0x61. */ |
| 381 | #define LTTNG_KERNEL_STREAM _IO(0xF6, 0x62) |
| 382 | #define LTTNG_KERNEL_EVENT \ |
| 383 | _IOW(0xF6, 0x63, struct lttng_kernel_event) |
| 384 | #define LTTNG_KERNEL_SYSCALL_MASK \ |
| 385 | _IOWR(0xF6, 0x64, struct lttng_kernel_syscall_mask) |
| 386 | |
| 387 | /* Event and Channel FD ioctl */ |
| 388 | /* lttng/abi-old.h reserve 0x70. */ |
| 389 | #define LTTNG_KERNEL_CONTEXT \ |
| 390 | _IOW(0xF6, 0x71, struct lttng_kernel_context) |
| 391 | |
| 392 | /* Event, Event notifier, Channel, Counter and Session ioctl */ |
| 393 | /* lttng/abi-old.h reserve 0x80 and 0x81. */ |
| 394 | #define LTTNG_KERNEL_ENABLE _IO(0xF6, 0x82) |
| 395 | #define LTTNG_KERNEL_DISABLE _IO(0xF6, 0x83) |
| 396 | |
| 397 | /* Trigger group and session ioctl */ |
| 398 | #define LTTNG_KERNEL_COUNTER \ |
| 399 | _IOW(0xF6, 0x84, struct lttng_kernel_counter_conf) |
| 400 | |
| 401 | /* Event and Event notifier FD ioctl */ |
| 402 | #define LTTNG_KERNEL_FILTER _IO(0xF6, 0x90) |
| 403 | #define LTTNG_KERNEL_ADD_CALLSITE _IO(0xF6, 0x91) |
| 404 | |
| 405 | /* Session FD ioctl (continued) */ |
| 406 | #define LTTNG_KERNEL_SESSION_LIST_TRACKER_IDS \ |
| 407 | _IOR(0xF6, 0xA0, struct lttng_kernel_tracker_args) |
| 408 | #define LTTNG_KERNEL_SESSION_TRACK_ID \ |
| 409 | _IOR(0xF6, 0xA1, struct lttng_kernel_tracker_args) |
| 410 | #define LTTNG_KERNEL_SESSION_UNTRACK_ID \ |
| 411 | _IOR(0xF6, 0xA2, struct lttng_kernel_tracker_args) |
| 412 | |
| 413 | /* Event notifier group file descriptor ioctl */ |
| 414 | #define LTTNG_KERNEL_EVENT_NOTIFIER_CREATE \ |
| 415 | _IOW(0xF6, 0xB0, struct lttng_kernel_event_notifier) |
| 416 | #define LTTNG_KERNEL_EVENT_NOTIFIER_GROUP_NOTIFICATION_FD \ |
| 417 | _IO(0xF6, 0xB1) |
| 418 | |
| 419 | /* Event notifier file descriptor ioctl */ |
| 420 | #define LTTNG_KERNEL_CAPTURE _IO(0xF6, 0xB8) |
| 421 | |
| 422 | /* Counter file descriptor ioctl */ |
| 423 | #define LTTNG_KERNEL_COUNTER_READ \ |
| 424 | _IOWR(0xF6, 0xC0, struct lttng_kernel_counter_read) |
| 425 | #define LTTNG_KERNEL_COUNTER_AGGREGATE \ |
| 426 | _IOWR(0xF6, 0xC1, struct lttng_kernel_counter_aggregate) |
| 427 | #define LTTNG_KERNEL_COUNTER_CLEAR \ |
| 428 | _IOW(0xF6, 0xC2, struct lttng_kernel_counter_clear) |
| 429 | |
| 430 | |
| 431 | /* |
| 432 | * LTTng-specific ioctls for the lib ringbuffer. |
| 433 | * |
| 434 | * Operations applying to the current sub-buffer need to occur between |
| 435 | * a get/put or get_next/put_next ioctl pair. |
| 436 | */ |
| 437 | |
| 438 | /* returns the timestamp begin of the current sub-buffer */ |
| 439 | #define LTTNG_RING_BUFFER_GET_TIMESTAMP_BEGIN _IOR(0xF6, 0x20, uint64_t) |
| 440 | /* returns the timestamp end of the current sub-buffer */ |
| 441 | #define LTTNG_RING_BUFFER_GET_TIMESTAMP_END _IOR(0xF6, 0x21, uint64_t) |
| 442 | /* returns the number of events discarded of the current sub-buffer */ |
| 443 | #define LTTNG_RING_BUFFER_GET_EVENTS_DISCARDED _IOR(0xF6, 0x22, uint64_t) |
| 444 | /* returns the packet payload size of the current sub-buffer */ |
| 445 | #define LTTNG_RING_BUFFER_GET_CONTENT_SIZE _IOR(0xF6, 0x23, uint64_t) |
| 446 | /* returns the packet size of the current sub-buffer*/ |
| 447 | #define LTTNG_RING_BUFFER_GET_PACKET_SIZE _IOR(0xF6, 0x24, uint64_t) |
| 448 | /* returns the stream id (invariant for the stream) */ |
| 449 | #define LTTNG_RING_BUFFER_GET_STREAM_ID _IOR(0xF6, 0x25, uint64_t) |
| 450 | /* returns the current timestamp as perceived from the tracer */ |
| 451 | #define LTTNG_RING_BUFFER_GET_CURRENT_TIMESTAMP _IOR(0xF6, 0x26, uint64_t) |
| 452 | /* returns the packet sequence number of the current sub-buffer */ |
| 453 | #define LTTNG_RING_BUFFER_GET_SEQ_NUM _IOR(0xF6, 0x27, uint64_t) |
| 454 | /* returns the stream instance id (invariant for the stream) */ |
| 455 | #define LTTNG_RING_BUFFER_INSTANCE_ID _IOR(0xF6, 0x28, uint64_t) |
| 456 | |
| 457 | #ifdef CONFIG_COMPAT |
| 458 | /* returns the timestamp begin of the current sub-buffer */ |
| 459 | #define LTTNG_RING_BUFFER_COMPAT_GET_TIMESTAMP_BEGIN \ |
| 460 | LTTNG_RING_BUFFER_GET_TIMESTAMP_BEGIN |
| 461 | /* returns the timestamp end of the current sub-buffer */ |
| 462 | #define LTTNG_RING_BUFFER_COMPAT_GET_TIMESTAMP_END \ |
| 463 | LTTNG_RING_BUFFER_GET_TIMESTAMP_END |
| 464 | /* returns the number of events discarded of the current sub-buffer */ |
| 465 | #define LTTNG_RING_BUFFER_COMPAT_GET_EVENTS_DISCARDED \ |
| 466 | LTTNG_RING_BUFFER_GET_EVENTS_DISCARDED |
| 467 | /* returns the packet payload size of the current sub-buffer */ |
| 468 | #define LTTNG_RING_BUFFER_COMPAT_GET_CONTENT_SIZE \ |
| 469 | LTTNG_RING_BUFFER_GET_CONTENT_SIZE |
| 470 | /* returns the packet size of the current sub-buffer */ |
| 471 | #define LTTNG_RING_BUFFER_COMPAT_GET_PACKET_SIZE \ |
| 472 | LTTNG_RING_BUFFER_GET_PACKET_SIZE |
| 473 | /* returns the stream id (invariant for the stream) */ |
| 474 | #define LTTNG_RING_BUFFER_COMPAT_GET_STREAM_ID \ |
| 475 | LTTNG_RING_BUFFER_GET_STREAM_ID |
| 476 | /* returns the current timestamp as perceived from the tracer */ |
| 477 | #define LTTNG_RING_BUFFER_COMPAT_GET_CURRENT_TIMESTAMP \ |
| 478 | LTTNG_RING_BUFFER_GET_CURRENT_TIMESTAMP |
| 479 | /* returns the packet sequence number of the current sub-buffer */ |
| 480 | #define LTTNG_RING_BUFFER_COMPAT_GET_SEQ_NUM \ |
| 481 | LTTNG_RING_BUFFER_GET_SEQ_NUM |
| 482 | /* returns the stream instance id (invariant for the stream) */ |
| 483 | #define LTTNG_RING_BUFFER_COMPAT_INSTANCE_ID \ |
| 484 | LTTNG_RING_BUFFER_INSTANCE_ID |
| 485 | #endif /* CONFIG_COMPAT */ |
| 486 | |
| 487 | #endif /* _LTTNG_ABI_H */ |