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Fix: scsi: sd: Atomic write support added in 6.11-rc1
[lttng-modules.git] / include / lttng / abi.h
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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_KERNEL_ABI_MAJOR_VERSION 2
21#define LTTNG_KERNEL_ABI_MINOR_VERSION 6
22
23#define LTTNG_KERNEL_ABI_SYM_NAME_LEN 256
24#define LTTNG_KERNEL_ABI_SESSION_NAME_LEN 256
25
26/*
27 * The expected iso8601 time formats are either:
28 *
29 * - YYYYmmddTHHMMSS+HHMM (20 characters + \0)
30 * - YYYY-mm-ddTHH:MM:SS+HH:MM (25 characters + \0)
31 */
32#define LTTNG_KERNEL_ABI_SESSION_CREATION_TIME_ISO8601_LEN 26
33
34enum lttng_kernel_abi_instrumentation {
35 LTTNG_KERNEL_ABI_TRACEPOINT = 0,
36 LTTNG_KERNEL_ABI_KPROBE = 1,
37 LTTNG_KERNEL_ABI_FUNCTION = 2,
38 LTTNG_KERNEL_ABI_KRETPROBE = 3,
39 LTTNG_KERNEL_ABI_NOOP = 4, /* not hooked */
40 LTTNG_KERNEL_ABI_SYSCALL = 5,
41 LTTNG_KERNEL_ABI_UPROBE = 6,
42};
43
44/*
45 * LTTng consumer mode
46 */
47enum lttng_kernel_abi_output {
48 LTTNG_KERNEL_ABI_SPLICE = 0,
49 LTTNG_KERNEL_ABI_MMAP = 1,
50};
51
52/*
53 * LTTng DebugFS ABI structures.
54 */
55#define LTTNG_KERNEL_ABI_CHANNEL_PADDING LTTNG_KERNEL_ABI_SYM_NAME_LEN + 32
56struct lttng_kernel_abi_channel {
57 uint64_t subbuf_size; /* in bytes */
58 uint64_t num_subbuf;
59 unsigned int switch_timer_interval; /* usecs */
60 unsigned int read_timer_interval; /* usecs */
61 uint32_t output; /* enum lttng_kernel_abi_output (splice, mmap) */
62 int overwrite; /* 1: overwrite, 0: discard */
63 char padding[LTTNG_KERNEL_ABI_CHANNEL_PADDING];
64} __attribute__((packed));
65
66enum lttng_kernel_abi_kretprobe_entryexit {
67 LTTNG_KERNEL_ABI_KRETPROBE_ENTRYEXIT = 0,
68 LTTNG_KERNEL_ABI_KRETPROBE_ENTRY = 1,
69 LTTNG_KERNEL_ABI_KRETPROBE_EXIT = 2,
70};
71
72struct lttng_kernel_abi_kretprobe {
73 uint64_t addr;
74
75 uint64_t offset;
76 char symbol_name[LTTNG_KERNEL_ABI_SYM_NAME_LEN];
77 uint8_t entryexit; /* enum lttng_kernel_abi_kretprobe_entryexit */
78} __attribute__((packed));
79
80/*
81 * Either addr is used, or symbol_name and offset.
82 */
83struct lttng_kernel_abi_kprobe {
84 uint64_t addr;
85
86 uint64_t offset;
87 char symbol_name[LTTNG_KERNEL_ABI_SYM_NAME_LEN];
88} __attribute__((packed));
89
90struct lttng_kernel_abi_function_tracer {
91 char symbol_name[LTTNG_KERNEL_ABI_SYM_NAME_LEN];
92} __attribute__((packed));
93
94struct lttng_kernel_abi_uprobe {
95 int fd;
96} __attribute__((packed));
97
98struct lttng_kernel_abi_event_callsite_uprobe {
99 uint64_t offset;
100} __attribute__((packed));
101
102struct lttng_kernel_abi_event_callsite {
103 union {
104 struct lttng_kernel_abi_event_callsite_uprobe uprobe;
105 } u;
106} __attribute__((packed));
107
108enum lttng_kernel_abi_syscall_entryexit {
109 LTTNG_KERNEL_ABI_SYSCALL_ENTRYEXIT = 0,
110 LTTNG_KERNEL_ABI_SYSCALL_ENTRY = 1,
111 LTTNG_KERNEL_ABI_SYSCALL_EXIT = 2,
112};
113
114enum lttng_kernel_abi_syscall_abi {
115 LTTNG_KERNEL_ABI_SYSCALL_ABI_ALL = 0,
116 LTTNG_KERNEL_ABI_SYSCALL_ABI_NATIVE = 1,
117 LTTNG_KERNEL_ABI_SYSCALL_ABI_COMPAT = 2,
118};
119
120enum lttng_kernel_abi_syscall_match {
121 LTTNG_KERNEL_ABI_SYSCALL_MATCH_NAME = 0,
122 LTTNG_KERNEL_ABI_SYSCALL_MATCH_NR = 1, /* Not implemented. */
123};
124
125struct lttng_kernel_abi_syscall {
126 uint8_t entryexit; /* enum lttng_kernel_abi_syscall_entryexit */
127 uint8_t abi; /* enum lttng_kernel_abi_syscall_abi */
128 uint8_t match; /* enum lttng_kernel_abi_syscall_match */
129 uint8_t padding;
130 uint32_t nr; /* For LTTNG_SYSCALL_MATCH_NR */
131} __attribute__((packed));
132
133/*
134 * An immediate match requires that the requested event matches existing
135 * instrumentation when the ioctl is issued, whereas a lazy match does not
136 * have this constraint.
137 *
138 * Instrumentation default
139 * ---------------------------------------------------------------------------
140 * LTTNG_KERNEL_ABI_TRACEPOINT: lazy
141 * LTTNG_KERNEL_ABI_SYSCALL: lazy
142 * LTTNG_KERNEL_ABI_KPROBE: immediate
143 * LTTNG_KERNEL_ABI_KRETPROBE: immediate
144 * LTTNG_KERNEL_ABI_UPROBE: immediate
145 */
146enum lttng_kernel_abi_match_check {
147 LTTNG_KERNEL_ABI_MATCH_DEFAULT = 0,
148 LTTNG_KERNEL_ABI_MATCH_IMMEDIATE = 1,
149 LTTNG_KERNEL_ABI_MATCH_LAZY = 2,
150};
151
152/*
153 * Extended event parameters.
154 */
155struct lttng_kernel_abi_event_ext {
156 uint32_t len; /* length of this structure */
157
158 uint8_t match_check; /* enum lttng_kernel_abi_match_check */
159} __attribute__((packed));
160
161/*
162 * For syscall tracing, name = "*" means "enable all".
163 */
164#define LTTNG_KERNEL_ABI_EVENT_PADDING2 LTTNG_KERNEL_ABI_SYM_NAME_LEN + 32
165struct lttng_kernel_abi_event {
166 char name[LTTNG_KERNEL_ABI_SYM_NAME_LEN]; /* event name */
167 uint32_t instrumentation; /* enum lttng_kernel_abi_instrumentation */
168 uint64_t token; /* User-provided token */
169 uint64_t event_ext; /* struct lttng_kernel_abi_event_ext */
170
171 /* Per instrumentation type configuration */
172 union {
173 struct lttng_kernel_abi_kretprobe kretprobe;
174 struct lttng_kernel_abi_kprobe kprobe;
175 struct lttng_kernel_abi_function_tracer ftrace;
176 struct lttng_kernel_abi_uprobe uprobe;
177 struct lttng_kernel_abi_syscall syscall;
178 char padding[LTTNG_KERNEL_ABI_EVENT_PADDING2];
179 } u;
180} __attribute__((packed));
181
182#define LTTNG_KERNEL_ABI_EVENT_NOTIFIER_PADDING 32
183struct lttng_kernel_abi_event_notifier {
184 struct lttng_kernel_abi_event event;
185 uint64_t error_counter_index;
186
187 char padding[LTTNG_KERNEL_ABI_EVENT_NOTIFIER_PADDING];
188} __attribute__((packed));
189
190#define LTTNG_KERNEL_ABI_EVENT_NOTIFIER_NOTIFICATION_PADDING 32
191struct lttng_kernel_abi_event_notifier_notification {
192 uint64_t token;
193 uint16_t capture_buf_size;
194 char padding[LTTNG_KERNEL_ABI_EVENT_NOTIFIER_NOTIFICATION_PADDING];
195} __attribute__((packed));
196
197enum lttng_kernel_abi_key_token_type {
198 LTTNG_KERNEL_ABI_KEY_TOKEN_STRING = 0, /* arg: string_ptr. */
199 LTTNG_KERNEL_ABI_KEY_TOKEN_EVENT_NAME = 1, /* no arg. */
200 LTTNG_KERNEL_ABI_KEY_TOKEN_PROVIDER_NAME = 2, /* no arg. */
201};
202
203enum lttng_kernel_abi_counter_arithmetic {
204 LTTNG_KERNEL_ABI_COUNTER_ARITHMETIC_MODULAR = 0,
205};
206
207enum lttng_kernel_abi_counter_bitness {
208 LTTNG_KERNEL_ABI_COUNTER_BITNESS_32 = 0,
209 LTTNG_KERNEL_ABI_COUNTER_BITNESS_64 = 1,
210};
211
212struct lttng_kernel_abi_key_token {
213 uint32_t len; /* length of child structure. */
214 uint32_t type; /* enum lttng_kernel_abi_key_token_type */
215 /*
216 * The size of this structure is fixed because it is embedded into
217 * children structures.
218 */
219} __attribute__((packed));
220
221/* Length of this structure excludes the following string. */
222struct lttng_kernel_abi_key_token_string {
223 struct lttng_kernel_abi_key_token parent;
224 uint32_t string_len; /* string length (includes \0) */
225
226 /* Null-terminated string of length @string_len follows this structure. */
227} __attribute__((packed));
228
229/*
230 * token types event_name and provider_name don't have specific fields,
231 * so they do not need to derive their own specific child structure.
232 */
233
234struct lttng_kernel_abi_counter_map_descriptor {
235 uint32_t len; /* length of this structure. */
236
237 uint64_t descriptor_index; /* Descriptor index (input: [ 0 .. nr_descriptors - 1 ]) */
238
239 uint32_t dimension; /* Dimension indexed (output) */
240 uint64_t user_token; /* User-provided 64-bit token (output) */
241 uint64_t key_string; /*
242 * Pointer (input) to key string associated with this index
243 * (output). If key_string_len is smaller than the required
244 * space, the ioctl fails with -ENOSPC, storing the required
245 * string space into @key_string_len.
246 */
247 uint32_t key_string_len; /* Key string length (input/output, includes \0) */
248 uint64_t array_indexes; /*
249 * Pointer (input) to array of indexes within each dimension
250 * (output). There are @dimension values populated. Each
251 * element is of type uint64_t. If arrays_indexes_len is
252 * smaller than @dimension, the ioctl fails with -ENOSPC,
253 * storing the required array index length into
254 * @array_index_len.
255 */
256 uint32_t array_indexes_len; /* Array indexes length (input/output). */
257} __attribute__((packed));
258
259/*
260 * Dimension indexing: All events should use the same key type to index
261 * a given map dimension.
262 */
263enum lttng_kernel_abi_key_type {
264 LTTNG_KERNEL_ABI_KEY_TYPE_TOKENS = 0, /* Dimension key is a set of tokens. */
265 LTTNG_KERNEL_ABI_KEY_TYPE_INTEGER = 1, /* Dimension key is an integer value. */
266};
267
268struct lttng_kernel_abi_counter_key_dimension {
269 uint32_t len; /* length of child structure */
270 uint32_t key_type; /* enum lttng_kernel_abi_key_type */
271 /*
272 * The size of this structure is fixed because it is embedded
273 * into children structures.
274 */
275} __attribute__((packed));
276
277struct lttng_kernel_abi_counter_key_dimension_tokens {
278 struct lttng_kernel_abi_counter_key_dimension parent;
279 uint32_t nr_key_tokens;
280
281 /* Followed by an array of nr_key_tokens struct lttng_kernel_abi_key_token elements. */
282} __attribute__((packed));
283
284/*
285 * The "integer" key type is not implemented yet, but when it will be
286 * introduced in the future, its specific key dimension will allow
287 * defining the function to apply over input argument, bytecode to run
288 * and so on.
289 */
290
291enum lttng_kernel_abi_counter_action {
292 LTTNG_KERNEL_ABI_COUNTER_ACTION_INCREMENT = 0,
293
294 /*
295 * Can be extended with additional actions, such as decrement,
296 * set value, run bytecode, and so on.
297 */
298};
299
300struct lttng_kernel_abi_counter_event {
301 uint32_t len; /* length of this structure */
302 uint32_t action; /* enum lttng_kernel_abi_counter_action */
303
304 struct lttng_kernel_abi_event event;
305 uint32_t number_key_dimensions; /* array of dimensions is an array of var. len. elements. */
306
307 /*
308 * Followed by additional data specific to the action, and by a
309 * variable-length array of key dimensions.
310 */
311} __attribute__((packed));
312
313enum lttng_kernel_abi_counter_dimension_flags {
314 LTTNG_KERNEL_ABI_COUNTER_DIMENSION_FLAG_UNDERFLOW = (1 << 0),
315 LTTNG_KERNEL_ABI_COUNTER_DIMENSION_FLAG_OVERFLOW = (1 << 1),
316};
317
318struct lttng_kernel_abi_counter_dimension {
319 uint32_t key_type; /* enum lttng_kernel_abi_key_type */
320 uint32_t flags; /* enum lttng_kernel_abi_counter_dimension_flags */
321 uint64_t size; /* dimension size */
322 uint64_t underflow_index;
323 uint64_t overflow_index;
324} __attribute__((packed));
325
326struct lttng_kernel_abi_counter_dimension_array {
327 uint32_t number_dimensions;
328 uint32_t elem_len; /* array stride (size of struct lttng_kernel_abi_counter_dimension) */
329 uint64_t ptr; /* pointer to array of struct lttng_kernel_abi_counter_dimension */
330} __attribute__((packed));
331
332enum lttng_kernel_abi_counter_conf_flags {
333 LTTNG_KERNEL_ABI_COUNTER_CONF_FLAG_COALESCE_HITS = (1 << 0),
334};
335
336struct lttng_kernel_abi_counter_conf {
337 uint32_t len; /* length of this structure */
338 uint32_t flags; /* enum lttng_kernel_abi_counter_conf_flags */
339 uint32_t arithmetic; /* enum lttng_kernel_abi_counter_arithmetic */
340 uint32_t bitness; /* enum lttng_kernel_abi_counter_bitness */
341 int64_t global_sum_step;
342 struct lttng_kernel_abi_counter_dimension_array dimension_array;
343} __attribute__((packed));
344
345struct lttng_kernel_abi_counter_index {
346 uint32_t number_dimensions;
347 uint64_t ptr; /* pointer to dimension indexes (array of uint64_t) */
348} __attribute__((packed));
349
350enum lttng_kernel_abi_counter_value_flags {
351 LTTNG_KERNEL_ABI_COUNTER_VALUE_FLAG_UNDERFLOW = (1 << 0),
352 LTTNG_KERNEL_ABI_COUNTER_VALUE_FLAG_OVERFLOW = (1 << 1),
353};
354
355struct lttng_kernel_abi_counter_value {
356 int64_t value;
357 uint32_t flags; /* enum lttng_kernel_abi_counter_value_flags */
358} __attribute__((packed));
359
360struct lttng_kernel_abi_counter_read {
361 uint32_t len; /* length of this structure */
362 struct lttng_kernel_abi_counter_index index;
363 int32_t cpu; /* -1 for global counter, >= 0 for specific cpu. */
364 struct lttng_kernel_abi_counter_value value; /* output */
365} __attribute__((packed));
366
367struct lttng_kernel_abi_counter_aggregate {
368 uint32_t len; /* length of this structure */
369 struct lttng_kernel_abi_counter_index index;
370 struct lttng_kernel_abi_counter_value value; /* output */
371} __attribute__((packed));
372
373struct lttng_kernel_abi_counter_clear {
374 uint32_t len; /* length of this structure */
375 struct lttng_kernel_abi_counter_index index;
376} __attribute__((packed));
377
378struct lttng_kernel_abi_tracer_version {
379 uint32_t major;
380 uint32_t minor;
381 uint32_t patchlevel;
382} __attribute__((packed));
383
384struct lttng_kernel_abi_tracer_abi_version {
385 uint32_t major;
386 uint32_t minor;
387} __attribute__((packed));
388
389struct lttng_kernel_abi_session_name {
390 char name[LTTNG_KERNEL_ABI_SESSION_NAME_LEN];
391} __attribute__((packed));
392
393struct lttng_kernel_abi_session_creation_time {
394 char iso8601[LTTNG_KERNEL_ABI_SESSION_CREATION_TIME_ISO8601_LEN];
395} __attribute__((packed));
396
397enum lttng_kernel_abi_calibrate_type {
398 LTTNG_KERNEL_ABI_CALIBRATE_KRETPROBE,
399};
400
401struct lttng_kernel_abi_calibrate {
402 uint32_t type; /* enum lttng_kernel_abi_calibrate_type (input) */
403} __attribute__((packed));
404
405struct lttng_kernel_abi_syscall_mask {
406 uint32_t len; /* in bits */
407 char mask[];
408} __attribute__((packed));
409
410enum lttng_kernel_abi_context_type {
411 LTTNG_KERNEL_ABI_CONTEXT_PID = 0,
412 LTTNG_KERNEL_ABI_CONTEXT_PERF_COUNTER = 1,
413 LTTNG_KERNEL_ABI_CONTEXT_PROCNAME = 2,
414 LTTNG_KERNEL_ABI_CONTEXT_PRIO = 3,
415 LTTNG_KERNEL_ABI_CONTEXT_NICE = 4,
416 LTTNG_KERNEL_ABI_CONTEXT_VPID = 5,
417 LTTNG_KERNEL_ABI_CONTEXT_TID = 6,
418 LTTNG_KERNEL_ABI_CONTEXT_VTID = 7,
419 LTTNG_KERNEL_ABI_CONTEXT_PPID = 8,
420 LTTNG_KERNEL_ABI_CONTEXT_VPPID = 9,
421 LTTNG_KERNEL_ABI_CONTEXT_HOSTNAME = 10,
422 LTTNG_KERNEL_ABI_CONTEXT_CPU_ID = 11,
423 LTTNG_KERNEL_ABI_CONTEXT_INTERRUPTIBLE = 12,
424 LTTNG_KERNEL_ABI_CONTEXT_PREEMPTIBLE = 13,
425 LTTNG_KERNEL_ABI_CONTEXT_NEED_RESCHEDULE = 14,
426 LTTNG_KERNEL_ABI_CONTEXT_MIGRATABLE = 15,
427 LTTNG_KERNEL_ABI_CONTEXT_CALLSTACK_KERNEL = 16,
428 LTTNG_KERNEL_ABI_CONTEXT_CALLSTACK_USER = 17,
429 LTTNG_KERNEL_ABI_CONTEXT_CGROUP_NS = 18,
430 LTTNG_KERNEL_ABI_CONTEXT_IPC_NS = 19,
431 LTTNG_KERNEL_ABI_CONTEXT_MNT_NS = 20,
432 LTTNG_KERNEL_ABI_CONTEXT_NET_NS = 21,
433 LTTNG_KERNEL_ABI_CONTEXT_PID_NS = 22,
434 LTTNG_KERNEL_ABI_CONTEXT_USER_NS = 23,
435 LTTNG_KERNEL_ABI_CONTEXT_UTS_NS = 24,
436 LTTNG_KERNEL_ABI_CONTEXT_UID = 25,
437 LTTNG_KERNEL_ABI_CONTEXT_EUID = 26,
438 LTTNG_KERNEL_ABI_CONTEXT_SUID = 27,
439 LTTNG_KERNEL_ABI_CONTEXT_GID = 28,
440 LTTNG_KERNEL_ABI_CONTEXT_EGID = 29,
441 LTTNG_KERNEL_ABI_CONTEXT_SGID = 30,
442 LTTNG_KERNEL_ABI_CONTEXT_VUID = 31,
443 LTTNG_KERNEL_ABI_CONTEXT_VEUID = 32,
444 LTTNG_KERNEL_ABI_CONTEXT_VSUID = 33,
445 LTTNG_KERNEL_ABI_CONTEXT_VGID = 34,
446 LTTNG_KERNEL_ABI_CONTEXT_VEGID = 35,
447 LTTNG_KERNEL_ABI_CONTEXT_VSGID = 36,
448 LTTNG_KERNEL_ABI_CONTEXT_TIME_NS = 37,
449};
450
451struct lttng_kernel_abi_perf_counter_ctx {
452 uint32_t type;
453 uint64_t config;
454 char name[LTTNG_KERNEL_ABI_SYM_NAME_LEN];
455} __attribute__((packed));
456
457#define LTTNG_KERNEL_ABI_CONTEXT_PADDING1 16
458#define LTTNG_KERNEL_ABI_CONTEXT_PADDING2 LTTNG_KERNEL_ABI_SYM_NAME_LEN + 32
459struct lttng_kernel_abi_context {
460 uint32_t ctx; /*enum lttng_kernel_abi_context_type */
461 char padding[LTTNG_KERNEL_ABI_CONTEXT_PADDING1];
462
463 union {
464 struct lttng_kernel_abi_perf_counter_ctx perf_counter;
465 char padding[LTTNG_KERNEL_ABI_CONTEXT_PADDING2];
466 } u;
467} __attribute__((packed));
468
469#define LTTNG_KERNEL_ABI_FILTER_BYTECODE_MAX_LEN 65536
470struct lttng_kernel_abi_filter_bytecode {
471 uint32_t len;
472 uint32_t reloc_offset;
473 uint64_t seqnum;
474 char data[];
475} __attribute__((packed));
476
477#define LTTNG_KERNEL_ABI_CAPTURE_BYTECODE_MAX_LEN 65536
478struct lttng_kernel_abi_capture_bytecode {
479 uint32_t len;
480 uint32_t reloc_offset;
481 uint64_t seqnum;
482 char data[];
483} __attribute__((packed));
484
485enum lttng_kernel_abi_tracker_type {
486 LTTNG_KERNEL_ABI_TRACKER_UNKNOWN = -1,
487
488 LTTNG_KERNEL_ABI_TRACKER_PID = 0,
489 LTTNG_KERNEL_ABI_TRACKER_VPID = 1,
490 LTTNG_KERNEL_ABI_TRACKER_UID = 2,
491 LTTNG_KERNEL_ABI_TRACKER_VUID = 3,
492 LTTNG_KERNEL_ABI_TRACKER_GID = 4,
493 LTTNG_KERNEL_ABI_TRACKER_VGID = 5,
494};
495
496struct lttng_kernel_abi_tracker_args {
497 uint32_t type; /* enum lttng_kernel_abi_tracker_type */
498 int32_t id;
499};
500
501/* LTTng file descriptor ioctl */
502/* lttng/abi-old.h reserve 0x40, 0x41, 0x42, 0x43, and 0x44. */
503#define LTTNG_KERNEL_ABI_SESSION _IO(0xF6, 0x45)
504#define LTTNG_KERNEL_ABI_TRACER_VERSION \
505 _IOR(0xF6, 0x46, struct lttng_kernel_abi_tracer_version)
506#define LTTNG_KERNEL_ABI_TRACEPOINT_LIST _IO(0xF6, 0x47)
507#define LTTNG_KERNEL_ABI_WAIT_QUIESCENT _IO(0xF6, 0x48)
508#define LTTNG_KERNEL_ABI_CALIBRATE \
509 _IOWR(0xF6, 0x49, struct lttng_kernel_abi_calibrate)
510#define LTTNG_KERNEL_ABI_SYSCALL_LIST _IO(0xF6, 0x4A)
511#define LTTNG_KERNEL_ABI_TRACER_ABI_VERSION \
512 _IOR(0xF6, 0x4B, struct lttng_kernel_abi_tracer_abi_version)
513#define LTTNG_KERNEL_ABI_EVENT_NOTIFIER_GROUP_CREATE _IO(0xF6, 0x4C)
514
515/* Session FD ioctl */
516/* lttng/abi-old.h reserve 0x50, 0x51, 0x52, and 0x53. */
517#define LTTNG_KERNEL_ABI_METADATA \
518 _IOW(0xF6, 0x54, struct lttng_kernel_abi_channel)
519#define LTTNG_KERNEL_ABI_CHANNEL \
520 _IOW(0xF6, 0x55, struct lttng_kernel_abi_channel)
521#define LTTNG_KERNEL_ABI_SESSION_START _IO(0xF6, 0x56)
522#define LTTNG_KERNEL_ABI_SESSION_STOP _IO(0xF6, 0x57)
523#define LTTNG_KERNEL_ABI_SESSION_TRACK_PID \
524 _IOW(0xF6, 0x58, int32_t)
525#define LTTNG_KERNEL_ABI_SESSION_UNTRACK_PID \
526 _IOW(0xF6, 0x59, int32_t)
527
528/*
529 * ioctl 0x58 and 0x59 are duplicated here. It works, since _IOR vs _IO
530 * are generating two different ioctl numbers, but this was not done on
531 * purpose. We should generally try to avoid those duplications.
532 */
533#define LTTNG_KERNEL_ABI_SESSION_LIST_TRACKER_PIDS _IO(0xF6, 0x58)
534#define LTTNG_KERNEL_ABI_SESSION_METADATA_REGEN _IO(0xF6, 0x59)
535
536/* lttng/abi-old.h reserve 0x5A and 0x5B. */
537#define LTTNG_KERNEL_ABI_SESSION_STATEDUMP _IO(0xF6, 0x5C)
538#define LTTNG_KERNEL_ABI_SESSION_SET_NAME \
539 _IOW(0xF6, 0x5D, struct lttng_kernel_abi_session_name)
540#define LTTNG_KERNEL_ABI_SESSION_SET_CREATION_TIME \
541 _IOW(0xF6, 0x5E, struct lttng_kernel_abi_session_creation_time)
542
543/* Channel FD ioctl */
544/* lttng/abi-old.h reserve 0x60 and 0x61. */
545#define LTTNG_KERNEL_ABI_STREAM _IO(0xF6, 0x62)
546#define LTTNG_KERNEL_ABI_EVENT \
547 _IOW(0xF6, 0x63, struct lttng_kernel_abi_event)
548/* LTTNG_KERNEL_ABI_SYSCALL_MASK applies to both channel and counter fds. */
549#define LTTNG_KERNEL_ABI_SYSCALL_MASK \
550 _IOWR(0xF6, 0x64, struct lttng_kernel_abi_syscall_mask)
551
552/* Event and Channel FD ioctl */
553/* lttng/abi-old.h reserve 0x70. */
554#define LTTNG_KERNEL_ABI_CONTEXT \
555 _IOW(0xF6, 0x71, struct lttng_kernel_abi_context)
556
557/* Event, Event notifier, Channel, Counter and Session ioctl */
558/* lttng/abi-old.h reserve 0x80 and 0x81. */
559#define LTTNG_KERNEL_ABI_ENABLE _IO(0xF6, 0x82)
560#define LTTNG_KERNEL_ABI_DISABLE _IO(0xF6, 0x83)
561
562/* Event notifier group and session ioctl */
563
564/* (0xF6, 0x84) is reserved for old ABI. */
565
566#define LTTNG_KERNEL_ABI_COUNTER \
567 _IOW(0xF6, 0x85, struct lttng_kernel_abi_counter_conf)
568
569/* Event and Event notifier FD ioctl */
570#define LTTNG_KERNEL_ABI_FILTER _IO(0xF6, 0x90)
571#define LTTNG_KERNEL_ABI_ADD_CALLSITE _IO(0xF6, 0x91)
572
573/* Session FD ioctl (continued) */
574#define LTTNG_KERNEL_ABI_SESSION_LIST_TRACKER_IDS \
575 _IOW(0xF6, 0xA0, struct lttng_kernel_abi_tracker_args)
576#define LTTNG_KERNEL_ABI_SESSION_TRACK_ID \
577 _IOW(0xF6, 0xA1, struct lttng_kernel_abi_tracker_args)
578#define LTTNG_KERNEL_ABI_SESSION_UNTRACK_ID \
579 _IOW(0xF6, 0xA2, struct lttng_kernel_abi_tracker_args)
580
581/* Event notifier group file descriptor ioctl */
582#define LTTNG_KERNEL_ABI_EVENT_NOTIFIER_CREATE \
583 _IOW(0xF6, 0xB0, struct lttng_kernel_abi_event_notifier)
584#define LTTNG_KERNEL_ABI_EVENT_NOTIFIER_GROUP_NOTIFICATION_FD \
585 _IO(0xF6, 0xB1)
586
587/* Event notifier file descriptor ioctl */
588#define LTTNG_KERNEL_ABI_CAPTURE _IO(0xF6, 0xB8)
589
590/* (0xF6, {0xC0, 0xC1, 0xC2}) are reserved for old ABI. */
591
592/* Counter file descriptor ioctl */
593#define LTTNG_KERNEL_ABI_COUNTER_MAP_NR_DESCRIPTORS \
594 _IOR(0xF6, 0xC3, uint64_t)
595#define LTTNG_KERNEL_ABI_COUNTER_MAP_DESCRIPTOR \
596 _IOWR(0xF6, 0xC4, struct lttng_kernel_abi_counter_map_descriptor)
597#define LTTNG_KERNEL_ABI_COUNTER_EVENT \
598 _IOW(0xF6, 0xC5, struct lttng_kernel_abi_counter_event)
599#define LTTNG_KERNEL_ABI_COUNTER_READ \
600 _IOWR(0xF6, 0xC6, struct lttng_kernel_abi_counter_read)
601#define LTTNG_KERNEL_ABI_COUNTER_AGGREGATE \
602 _IOWR(0xF6, 0xC7, struct lttng_kernel_abi_counter_aggregate)
603#define LTTNG_KERNEL_ABI_COUNTER_CLEAR \
604 _IOW(0xF6, 0xC8, struct lttng_kernel_abi_counter_clear)
605
606/*
607 * LTTng-specific ioctls for the lib ringbuffer.
608 *
609 * Operations applying to the current sub-buffer need to occur between
610 * a get/put or get_next/put_next ioctl pair.
611 */
612
613/* returns the timestamp begin of the current sub-buffer */
614#define LTTNG_KERNEL_ABI_RING_BUFFER_GET_TIMESTAMP_BEGIN _IOR(0xF6, 0x20, uint64_t)
615/* returns the timestamp end of the current sub-buffer */
616#define LTTNG_KERNEL_ABI_RING_BUFFER_GET_TIMESTAMP_END _IOR(0xF6, 0x21, uint64_t)
617/* returns the number of events discarded of the current sub-buffer */
618#define LTTNG_KERNEL_ABI_RING_BUFFER_GET_EVENTS_DISCARDED _IOR(0xF6, 0x22, uint64_t)
619/* returns the packet payload size of the current sub-buffer */
620#define LTTNG_KERNEL_ABI_RING_BUFFER_GET_CONTENT_SIZE _IOR(0xF6, 0x23, uint64_t)
621/* returns the packet size of the current sub-buffer*/
622#define LTTNG_KERNEL_ABI_RING_BUFFER_GET_PACKET_SIZE _IOR(0xF6, 0x24, uint64_t)
623/* returns the stream id (invariant for the stream) */
624#define LTTNG_KERNEL_ABI_RING_BUFFER_GET_STREAM_ID _IOR(0xF6, 0x25, uint64_t)
625/* returns the current timestamp as perceived from the tracer */
626#define LTTNG_KERNEL_ABI_RING_BUFFER_GET_CURRENT_TIMESTAMP _IOR(0xF6, 0x26, uint64_t)
627/* returns the packet sequence number of the current sub-buffer */
628#define LTTNG_KERNEL_ABI_RING_BUFFER_GET_SEQ_NUM _IOR(0xF6, 0x27, uint64_t)
629/* returns the stream instance id (invariant for the stream) */
630#define LTTNG_KERNEL_ABI_RING_BUFFER_INSTANCE_ID _IOR(0xF6, 0x28, uint64_t)
631
632/*
633 * Those ioctl numbers use the wrong direction, but are kept for ABI backward
634 * compatibility.
635 */
636#define LTTNG_KERNEL_ABI_OLD_SESSION_SET_NAME \
637 _IOR(0xF6, 0x5D, struct lttng_kernel_abi_session_name)
638#define LTTNG_KERNEL_ABI_OLD_SESSION_SET_CREATION_TIME \
639 _IOR(0xF6, 0x5E, struct lttng_kernel_abi_session_creation_time)
640#define LTTNG_KERNEL_ABI_OLD_SESSION_TRACK_PID \
641 _IOR(0xF6, 0x58, int32_t)
642#define LTTNG_KERNEL_ABI_OLD_SESSION_UNTRACK_PID \
643 _IOR(0xF6, 0x59, int32_t)
644#define LTTNG_KERNEL_ABI_OLD_SESSION_LIST_TRACKER_IDS \
645 _IOR(0xF6, 0xA0, struct lttng_kernel_abi_tracker_args)
646#define LTTNG_KERNEL_ABI_OLD_SESSION_TRACK_ID \
647 _IOR(0xF6, 0xA1, struct lttng_kernel_abi_tracker_args)
648#define LTTNG_KERNEL_ABI_OLD_SESSION_UNTRACK_ID \
649 _IOR(0xF6, 0xA2, struct lttng_kernel_abi_tracker_args)
650
651#ifdef CONFIG_COMPAT
652/* returns the timestamp begin of the current sub-buffer */
653#define LTTNG_KERNEL_ABI_RING_BUFFER_COMPAT_GET_TIMESTAMP_BEGIN \
654 LTTNG_KERNEL_ABI_RING_BUFFER_GET_TIMESTAMP_BEGIN
655/* returns the timestamp end of the current sub-buffer */
656#define LTTNG_KERNEL_ABI_RING_BUFFER_COMPAT_GET_TIMESTAMP_END \
657 LTTNG_KERNEL_ABI_RING_BUFFER_GET_TIMESTAMP_END
658/* returns the number of events discarded of the current sub-buffer */
659#define LTTNG_KERNEL_ABI_RING_BUFFER_COMPAT_GET_EVENTS_DISCARDED \
660 LTTNG_KERNEL_ABI_RING_BUFFER_GET_EVENTS_DISCARDED
661/* returns the packet payload size of the current sub-buffer */
662#define LTTNG_KERNEL_ABI_RING_BUFFER_COMPAT_GET_CONTENT_SIZE \
663 LTTNG_KERNEL_ABI_RING_BUFFER_GET_CONTENT_SIZE
664/* returns the packet size of the current sub-buffer */
665#define LTTNG_KERNEL_ABI_RING_BUFFER_COMPAT_GET_PACKET_SIZE \
666 LTTNG_KERNEL_ABI_RING_BUFFER_GET_PACKET_SIZE
667/* returns the stream id (invariant for the stream) */
668#define LTTNG_KERNEL_ABI_RING_BUFFER_COMPAT_GET_STREAM_ID \
669 LTTNG_KERNEL_ABI_RING_BUFFER_GET_STREAM_ID
670/* returns the current timestamp as perceived from the tracer */
671#define LTTNG_KERNEL_ABI_RING_BUFFER_COMPAT_GET_CURRENT_TIMESTAMP \
672 LTTNG_KERNEL_ABI_RING_BUFFER_GET_CURRENT_TIMESTAMP
673/* returns the packet sequence number of the current sub-buffer */
674#define LTTNG_KERNEL_ABI_RING_BUFFER_COMPAT_GET_SEQ_NUM \
675 LTTNG_KERNEL_ABI_RING_BUFFER_GET_SEQ_NUM
676/* returns the stream instance id (invariant for the stream) */
677#define LTTNG_KERNEL_ABI_RING_BUFFER_COMPAT_INSTANCE_ID \
678 LTTNG_KERNEL_ABI_RING_BUFFER_INSTANCE_ID
679#endif /* CONFIG_COMPAT */
680
681#endif /* _LTTNG_ABI_H */
LTTng 2.0/0.x modules
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