projects / lttng-tools.git / blame
| Commit | Line | Data |
|---|---|---|
| 20fe2104 | 1 | /* |
| ab5be9fa | 2 | * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca> |
| 20fe2104 | 3 | * |
| ab5be9fa | 4 | * SPDX-License-Identifier: GPL-2.0-only |
| 20fe2104 | 5 | * |
| 20fe2104 DG |
6 | */ |
| 7 | ||
| 8 | #ifndef _LTT_KERNEL_CTL_H | |
| 9 | #define _LTT_KERNEL_CTL_H | |
| 10 | ||
| 8c0faa1d | 11 | #include "session.h" |
| 6dc3064a | 12 | #include "snapshot.h" |
| 62499ad6 | 13 | #include "trace-kernel.h" |
| f34daff7 | 14 | |
| 2ef84c95 DG |
15 | /* |
| 16 | * Default size for the event list when kernel_list_events is called. This size | |
| 050349bb DG |
17 | * value is based on the initial LTTng 2.0 version set of tracepoints. |
| 18 | * | |
| 19 | * This is NOT an upper bound because if the real event list size is bigger, | |
| 20 | * dynamic reallocation is performed. | |
| 2ef84c95 | 21 | */ |
| 6725fe19 | 22 | #define KERNEL_EVENT_INIT_LIST_SIZE 64 |
| 55c9e7ca | 23 | #define KERNEL_TRACKER_IDS_INIT_LIST_SIZE 64 |
| 2ef84c95 | 24 | |
| d65106b1 | 25 | int kernel_add_channel_context(struct ltt_kernel_channel *chan, |
| 645328ae | 26 | struct ltt_kernel_context *ctx); |
| 7d268848 | 27 | int kernel_create_session(struct ltt_session *session); |
| b082db07 | 28 | int kernel_create_channel(struct ltt_kernel_session *session, |
| fdd9eb17 | 29 | struct lttng_channel *chan); |
| 00a62084 MD |
30 | int kernel_create_event(struct lttng_event *ev, struct ltt_kernel_channel *channel, |
| 31 | char *filter_expression, struct lttng_filter_bytecode *filter); | |
| 26cc6b4e | 32 | int kernel_disable_channel(struct ltt_kernel_channel *chan); |
| 19e70852 DG |
33 | int kernel_disable_event(struct ltt_kernel_event *event); |
| 34 | int kernel_enable_event(struct ltt_kernel_event *event); | |
| d36b8583 | 35 | int kernel_enable_channel(struct ltt_kernel_channel *chan); |
| 55c9e7ca JR |
36 | int kernel_track_id(enum lttng_tracker_type tracker_type, |
| 37 | struct ltt_kernel_session *session, | |
| 38 | const struct lttng_tracker_id *id); | |
| 39 | int kernel_untrack_id(enum lttng_tracker_type tracker_type, | |
| 40 | struct ltt_kernel_session *session, | |
| 41 | const struct lttng_tracker_id *id); | |
| a4b92340 | 42 | int kernel_open_metadata(struct ltt_kernel_session *session); |
| f3ed775e DG |
43 | int kernel_open_metadata_stream(struct ltt_kernel_session *session); |
| 44 | int kernel_open_channel_stream(struct ltt_kernel_channel *channel); | |
| 45 | int kernel_flush_buffer(struct ltt_kernel_channel *channel); | |
| 46 | int kernel_metadata_flush_buffer(int fd); | |
| 8c0faa1d DG |
47 | int kernel_start_session(struct ltt_kernel_session *session); |
| 48 | int kernel_stop_session(struct ltt_kernel_session *session); | |
| 7d268848 MD |
49 | ssize_t kernel_list_events(struct lttng_event **event_list); |
| 50 | void kernel_wait_quiescent(void); | |
| 51 | int kernel_validate_version(struct lttng_kernel_tracer_version *kernel_tracer_version, | |
| 88076e89 | 52 | struct lttng_kernel_tracer_abi_version *kernel_tracer_abi_version); |
| 2f77fc4b | 53 | void kernel_destroy_session(struct ltt_kernel_session *ksess); |
| d070c424 | 54 | void kernel_free_session(struct ltt_kernel_session *ksess); |
| fb5f35b6 | 55 | void kernel_destroy_channel(struct ltt_kernel_channel *kchan); |
| fb9a95c4 JG |
56 | enum lttng_error_code kernel_snapshot_record( |
| 57 | struct ltt_kernel_session *ksess, | |
| 348a81dc | 58 | const struct consumer_output *output, int wait, |
| d07ceecd | 59 | uint64_t nb_packets_per_stream); |
| 834978fd | 60 | int kernel_syscall_mask(int chan_fd, char **syscall_mask, uint32_t *nr_bits); |
| d5a1b7aa | 61 | enum lttng_error_code kernel_rotate_session(struct ltt_session *session); |
| bca212a2 | 62 | enum lttng_error_code kernel_clear_session(struct ltt_session *session); |
| 20fe2104 | 63 | |
| 335a95b7 | 64 | int init_kernel_workarounds(void); |
| a7a533cd | 65 | int kernel_list_tracker_ids(enum lttng_tracker_type tracker_type, |
| 55c9e7ca | 66 | struct ltt_kernel_session *session, |
| a7a533cd | 67 | struct lttng_tracker_ids **ids); |
| 7d268848 | 68 | int kernel_supports_ring_buffer_snapshot_sample_positions(void); |
| a40a503f | 69 | int kernel_supports_ring_buffer_packet_sequence_number(void); |
| 7d268848 MD |
70 | int init_kernel_tracer(void); |
| 71 | void cleanup_kernel_tracer(void); | |
| 72 | bool kernel_tracer_is_initialized(void); | |
| 335a95b7 | 73 | |
| d2956687 JG |
74 | enum lttng_error_code kernel_create_channel_subdirectories( |
| 75 | const struct ltt_kernel_session *ksess); | |
| 76 | ||
| 20fe2104 | 77 | #endif /* _LTT_KERNEL_CTL_H */ |