| | 1 | /* |
| | 2 | * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca> |
| | 3 | * |
| | 4 | * SPDX-License-Identifier: GPL-2.0-only |
| | 5 | * |
| | 6 | */ |
| | 7 | |
| | 8 | #ifndef _LTT_KERNEL_CTL_H |
| | 9 | #define _LTT_KERNEL_CTL_H |
| | 10 | |
| | 11 | #include "lttng/lttng-error.h" |
| | 12 | #include "lttng/tracker.h" |
| | 13 | #include "session.h" |
| | 14 | #include "snapshot.h" |
| | 15 | #include "trace-kernel.h" |
| | 16 | |
| | 17 | /* |
| | 18 | * Default size for the event list when kernel_list_events is called. This size |
| | 19 | * value is based on the initial LTTng 2.0 version set of tracepoints. |
| | 20 | * |
| | 21 | * This is NOT an upper bound because if the real event list size is bigger, |
| | 22 | * dynamic reallocation is performed. |
| | 23 | */ |
| | 24 | #define KERNEL_EVENT_INIT_LIST_SIZE 64 |
| | 25 | |
| | 26 | int kernel_add_channel_context(struct ltt_kernel_channel *chan, |
| | 27 | struct ltt_kernel_context *ctx); |
| | 28 | int kernel_create_session(struct ltt_session *session); |
| | 29 | int kernel_create_channel(struct ltt_kernel_session *session, |
| | 30 | struct lttng_channel *chan); |
| | 31 | int kernel_create_event(struct lttng_event *ev, struct ltt_kernel_channel *channel, |
| | 32 | char *filter_expression, struct lttng_bytecode *filter); |
| | 33 | int kernel_disable_channel(struct ltt_kernel_channel *chan); |
| | 34 | int kernel_disable_event(struct ltt_kernel_event *event); |
| | 35 | int kernel_enable_event(struct ltt_kernel_event *event); |
| | 36 | int kernel_enable_channel(struct ltt_kernel_channel *chan); |
| | 37 | enum lttng_error_code kernel_process_attr_tracker_set_tracking_policy( |
| | 38 | struct ltt_kernel_session *session, |
| | 39 | enum lttng_process_attr process_attr, |
| | 40 | enum lttng_tracking_policy policy); |
| | 41 | enum lttng_error_code kernel_process_attr_tracker_inclusion_set_add_value( |
| | 42 | struct ltt_kernel_session *session, |
| | 43 | enum lttng_process_attr process_attr, |
| | 44 | const struct process_attr_value *value); |
| | 45 | enum lttng_error_code kernel_process_attr_tracker_inclusion_set_remove_value( |
| | 46 | struct ltt_kernel_session *session, |
| | 47 | enum lttng_process_attr process_attr, |
| | 48 | const struct process_attr_value *value); |
| | 49 | const struct process_attr_tracker *kernel_get_process_attr_tracker( |
| | 50 | struct ltt_kernel_session *session, |
| | 51 | enum lttng_process_attr process_attr); |
| | 52 | int kernel_open_metadata(struct ltt_kernel_session *session); |
| | 53 | int kernel_open_metadata_stream(struct ltt_kernel_session *session); |
| | 54 | int kernel_open_channel_stream(struct ltt_kernel_channel *channel); |
| | 55 | int kernel_flush_buffer(struct ltt_kernel_channel *channel); |
| | 56 | int kernel_metadata_flush_buffer(int fd); |
| | 57 | int kernel_start_session(struct ltt_kernel_session *session); |
| | 58 | int kernel_stop_session(struct ltt_kernel_session *session); |
| | 59 | ssize_t kernel_list_events(struct lttng_event **event_list); |
| | 60 | void kernel_wait_quiescent(void); |
| | 61 | int kernel_validate_version(struct lttng_kernel_tracer_version *kernel_tracer_version, |
| | 62 | struct lttng_kernel_tracer_abi_version *kernel_tracer_abi_version); |
| | 63 | void kernel_destroy_session(struct ltt_kernel_session *ksess); |
| | 64 | void kernel_free_session(struct ltt_kernel_session *ksess); |
| | 65 | void kernel_destroy_channel(struct ltt_kernel_channel *kchan); |
| | 66 | enum lttng_error_code kernel_snapshot_record( |
| | 67 | struct ltt_kernel_session *ksess, |
| | 68 | const struct consumer_output *output, int wait, |
| | 69 | uint64_t nb_packets_per_stream); |
| | 70 | int kernel_syscall_mask(int chan_fd, char **syscall_mask, uint32_t *nr_bits); |
| | 71 | enum lttng_error_code kernel_rotate_session(struct ltt_session *session); |
| | 72 | enum lttng_error_code kernel_clear_session(struct ltt_session *session); |
| | 73 | |
| | 74 | int init_kernel_workarounds(void); |
| | 75 | int kernel_supports_ring_buffer_snapshot_sample_positions(void); |
| | 76 | int kernel_supports_ring_buffer_packet_sequence_number(void); |
| | 77 | int init_kernel_tracer(void); |
| | 78 | void cleanup_kernel_tracer(void); |
| | 79 | bool kernel_tracer_is_initialized(void); |
| | 80 | |
| | 81 | enum lttng_error_code kernel_create_channel_subdirectories( |
| | 82 | const struct ltt_kernel_session *ksess); |
| | 83 | |
| | 84 | enum lttng_error_code kernel_create_trigger_group_notification_fd( |
| | 85 | int *trigger_group_notification_fd); |
| | 86 | enum lttng_error_code kernel_destroy_trigger_group_notification_fd( |
| | 87 | int trigger_group_notification_fd); |
| | 88 | |
| | 89 | enum lttng_error_code kernel_register_trigger(struct lttng_trigger *trigger, const struct lttng_credentials *cmd_creds); |
| | 90 | enum lttng_error_code kernel_unregister_trigger(struct lttng_trigger *trigger); |
| | 91 | enum lttng_error_code kernel_create_trigger_group_error_counter( |
| | 92 | int *trigger_group_error_counter_fd, size_t nb_bucket); |
| | 93 | enum lttng_error_code kernel_trigger_update_error_count( |
| | 94 | struct lttng_trigger *trigger); |
| | 95 | |
| | 96 | int kernel_get_notification_fd(void); |
| | 97 | |
| | 98 | #endif /* _LTT_KERNEL_CTL_H */ |
projects / lttng-tools.git / blame_incremental