+ return &event_notifier_enabler->parent;
+}
+
+static inline
+struct lttng_event_ht *lttng_get_event_ht_from_enabler(struct lttng_event_enabler_common *event_enabler)
+{
+ switch (event_enabler->enabler_type) {
+ case LTTNG_EVENT_ENABLER_TYPE_RECORDER:
+ {
+ struct lttng_event_recorder_enabler *event_recorder_enabler =
+ container_of(event_enabler, struct lttng_event_recorder_enabler, parent);
+ return &event_recorder_enabler->chan->parent.session->priv->events_ht;
+ }
+ case LTTNG_EVENT_ENABLER_TYPE_NOTIFIER:
+ {
+ struct lttng_event_notifier_enabler *event_notifier_enabler =
+ container_of(event_enabler, struct lttng_event_notifier_enabler, parent);
+ return &event_notifier_enabler->group->events_ht;
+ }
+ default:
+ return NULL;
+ }
+}
+
+int lttng_context_init(void);
+void lttng_context_exit(void);
+int lttng_kernel_context_append(struct lttng_kernel_ctx **ctx_p,
+ const struct lttng_kernel_ctx_field *f);
+void lttng_kernel_context_remove_last(struct lttng_kernel_ctx **ctx_p);
+struct lttng_kernel_ctx_field *lttng_kernel_get_context_field_from_index(struct lttng_kernel_ctx *ctx,
+ size_t index);
+int lttng_kernel_find_context(struct lttng_kernel_ctx *ctx, const char *name);
+int lttng_kernel_get_context_index(struct lttng_kernel_ctx *ctx, const char *name);
+void lttng_kernel_destroy_context(struct lttng_kernel_ctx *ctx);
+int lttng_add_pid_to_ctx(struct lttng_kernel_ctx **ctx);
+int lttng_add_cpu_id_to_ctx(struct lttng_kernel_ctx **ctx);
+int lttng_add_procname_to_ctx(struct lttng_kernel_ctx **ctx);
+int lttng_add_prio_to_ctx(struct lttng_kernel_ctx **ctx);
+int lttng_add_nice_to_ctx(struct lttng_kernel_ctx **ctx);
+int lttng_add_vpid_to_ctx(struct lttng_kernel_ctx **ctx);
+int lttng_add_tid_to_ctx(struct lttng_kernel_ctx **ctx);
+int lttng_add_vtid_to_ctx(struct lttng_kernel_ctx **ctx);
+int lttng_add_ppid_to_ctx(struct lttng_kernel_ctx **ctx);
+int lttng_add_vppid_to_ctx(struct lttng_kernel_ctx **ctx);
+int lttng_add_hostname_to_ctx(struct lttng_kernel_ctx **ctx);
+int lttng_add_interruptible_to_ctx(struct lttng_kernel_ctx **ctx);
+int lttng_add_need_reschedule_to_ctx(struct lttng_kernel_ctx **ctx);
+#if defined(CONFIG_PREEMPT_RT_FULL) || defined(CONFIG_PREEMPT)
+int lttng_add_preemptible_to_ctx(struct lttng_kernel_ctx **ctx);
+#else
+static inline
+int lttng_add_preemptible_to_ctx(struct lttng_kernel_ctx **ctx)
+{
+ return -ENOSYS;
+}
+#endif
+#ifdef CONFIG_PREEMPT_RT_FULL
+int lttng_add_migratable_to_ctx(struct lttng_kernel_ctx **ctx);
+#else
+static inline
+int lttng_add_migratable_to_ctx(struct lttng_kernel_ctx **ctx)
+{
+ return -ENOSYS;
+}
+#endif
+
+int lttng_add_callstack_to_ctx(struct lttng_kernel_ctx **ctx, int type);
+
+#if defined(CONFIG_CGROUPS) && \
+ ((LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,6,0)) || \
+ LTTNG_UBUNTU_KERNEL_RANGE(4,4,0,0, 4,5,0,0))
+int lttng_add_cgroup_ns_to_ctx(struct lttng_kernel_ctx **ctx);
+#else
+static inline
+int lttng_add_cgroup_ns_to_ctx(struct lttng_kernel_ctx **ctx)
+{
+ return -ENOSYS;
+}
+#endif
+
+#if defined(CONFIG_IPC_NS) && \
+ (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
+int lttng_add_ipc_ns_to_ctx(struct lttng_kernel_ctx **ctx);
+#else
+static inline
+int lttng_add_ipc_ns_to_ctx(struct lttng_kernel_ctx **ctx)
+{
+ return -ENOSYS;
+}
+#endif
+
+#if !defined(LTTNG_MNT_NS_MISSING_HEADER) && \
+ (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
+int lttng_add_mnt_ns_to_ctx(struct lttng_kernel_ctx **ctx);
+#else
+static inline
+int lttng_add_mnt_ns_to_ctx(struct lttng_kernel_ctx **ctx)
+{
+ return -ENOSYS;
+}
+#endif
+
+#if defined(CONFIG_NET_NS) && \
+ (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
+int lttng_add_net_ns_to_ctx(struct lttng_kernel_ctx **ctx);
+#else
+static inline
+int lttng_add_net_ns_to_ctx(struct lttng_kernel_ctx **ctx)
+{
+ return -ENOSYS;
+}
+#endif
+
+#if defined(CONFIG_PID_NS) && \
+ (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
+int lttng_add_pid_ns_to_ctx(struct lttng_kernel_ctx **ctx);
+#else
+static inline
+int lttng_add_pid_ns_to_ctx(struct lttng_kernel_ctx **ctx)
+{
+ return -ENOSYS;
+}
+#endif
+
+#if defined(CONFIG_USER_NS) && \
+ (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
+int lttng_add_user_ns_to_ctx(struct lttng_kernel_ctx **ctx);
+#else
+static inline
+int lttng_add_user_ns_to_ctx(struct lttng_kernel_ctx **ctx)
+{
+ return -ENOSYS;
+}
+#endif
+
+#if defined(CONFIG_UTS_NS) && \
+ (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
+int lttng_add_uts_ns_to_ctx(struct lttng_kernel_ctx **ctx);
+#else
+static inline
+int lttng_add_uts_ns_to_ctx(struct lttng_kernel_ctx **ctx)
+{
+ return -ENOSYS;
+}
+#endif
+
+#if defined(CONFIG_TIME_NS) && \
+ (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,6,0) || \
+ LTTNG_RHEL_KERNEL_RANGE(4,18,0,305,0,0, 4,19,0,0,0,0))
+int lttng_add_time_ns_to_ctx(struct lttng_kernel_ctx **ctx);
+#else
+static inline
+int lttng_add_time_ns_to_ctx(struct lttng_kernel_ctx **ctx)
+{
+ return -ENOSYS;
+}
+#endif
+
+int lttng_add_uid_to_ctx(struct lttng_kernel_ctx **ctx);
+int lttng_add_euid_to_ctx(struct lttng_kernel_ctx **ctx);
+int lttng_add_suid_to_ctx(struct lttng_kernel_ctx **ctx);
+int lttng_add_gid_to_ctx(struct lttng_kernel_ctx **ctx);
+int lttng_add_egid_to_ctx(struct lttng_kernel_ctx **ctx);
+int lttng_add_sgid_to_ctx(struct lttng_kernel_ctx **ctx);
+int lttng_add_vuid_to_ctx(struct lttng_kernel_ctx **ctx);
+int lttng_add_veuid_to_ctx(struct lttng_kernel_ctx **ctx);
+int lttng_add_vsuid_to_ctx(struct lttng_kernel_ctx **ctx);
+int lttng_add_vgid_to_ctx(struct lttng_kernel_ctx **ctx);
+int lttng_add_vegid_to_ctx(struct lttng_kernel_ctx **ctx);
+int lttng_add_vsgid_to_ctx(struct lttng_kernel_ctx **ctx);
+
+#if defined(CONFIG_PERF_EVENTS)
+int lttng_add_perf_counter_to_ctx(uint32_t type,
+ uint64_t config,
+ const char *name,
+ struct lttng_kernel_ctx **ctx);
+int lttng_cpuhp_perf_counter_online(unsigned int cpu,
+ struct lttng_cpuhp_node *node);
+int lttng_cpuhp_perf_counter_dead(unsigned int cpu,
+ struct lttng_cpuhp_node *node);
+#else
+static inline
+int lttng_add_perf_counter_to_ctx(uint32_t type,
+ uint64_t config,
+ const char *name,
+ struct lttng_kernel_ctx **ctx)
+{
+ return -ENOSYS;
+}
+static inline
+int lttng_cpuhp_perf_counter_online(unsigned int cpu,
+ struct lttng_cpuhp_node *node)
+{
+ return 0;
+}
+static inline
+int lttng_cpuhp_perf_counter_dead(unsigned int cpu,
+ struct lttng_cpuhp_node *node)
+{
+ return 0;
+}
+#endif
+
+struct lttng_event_recorder_enabler *lttng_event_recorder_enabler_create(
+ enum lttng_enabler_format_type format_type,
+ struct lttng_kernel_abi_event *event_param,
+ struct lttng_kernel_channel_buffer *chan);
+void lttng_event_enabler_session_add(struct lttng_kernel_session *session,
+ struct lttng_event_recorder_enabler *event_enabler);
+
+struct lttng_event_notifier_enabler *lttng_event_notifier_enabler_create(
+ enum lttng_enabler_format_type format_type,
+ struct lttng_kernel_abi_event_notifier *event_notifier_param,
+ struct lttng_event_notifier_group *event_notifier_group);
+void lttng_event_notifier_enabler_group_add(struct lttng_event_notifier_group *event_notifier_group,
+ struct lttng_event_notifier_enabler *event_notifier_enabler);
+int lttng_event_notifier_enabler_attach_capture_bytecode(
+ struct lttng_event_notifier_enabler *event_notifier_enabler,
+ struct lttng_kernel_abi_capture_bytecode __user *bytecode);
+
+int lttng_event_enabler_enable(struct lttng_event_enabler_common *event_enabler);
+int lttng_event_enabler_disable(struct lttng_event_enabler_common *event_enabler);
+int lttng_event_enabler_attach_filter_bytecode(struct lttng_event_enabler_common *event_enabler,
+ struct lttng_kernel_abi_filter_bytecode __user *bytecode);
+void lttng_event_enabler_destroy(struct lttng_event_enabler_common *event_enabler);
+
+int lttng_desc_match_enabler(const struct lttng_kernel_event_desc *desc,
+ struct lttng_event_enabler_common *enabler);
+bool lttng_event_enabler_match_event(struct lttng_event_enabler_common *event_enabler,
+ struct lttng_kernel_event_common *event);
+bool lttng_event_enabler_desc_match_event(struct lttng_event_enabler_common *event_enabler,
+ const struct lttng_kernel_event_desc *desc,
+ struct lttng_kernel_event_common *event);
+
+void lttng_enabler_link_bytecode(const struct lttng_kernel_event_desc *event_desc,
+ struct lttng_kernel_ctx *ctx,
+ struct list_head *instance_bytecode_runtime_head,
+ struct list_head *enabler_bytecode_runtime_head);
+
+#if defined(CONFIG_HAVE_SYSCALL_TRACEPOINTS)
+int lttng_syscalls_register_event(struct lttng_event_enabler_common *event_enabler);
+int lttng_syscall_filter_enable_event(struct lttng_kernel_event_common *event);
+int lttng_syscall_filter_disable_event(struct lttng_kernel_event_common *event);
+
+int lttng_syscalls_unregister_syscall_table(struct lttng_kernel_syscall_table *syscall_table);
+int lttng_syscalls_destroy_syscall_table(struct lttng_kernel_syscall_table *syscall_table);
+
+long lttng_syscall_table_get_active_mask(struct lttng_kernel_syscall_table *syscall_table,
+ struct lttng_kernel_abi_syscall_mask __user *usyscall_mask);
+#else
+static inline int lttng_syscalls_register_event(struct lttng_event_enabler_common *event_enabler)
+{
+ return -ENOSYS;
+}
+
+static inline int lttng_syscall_filter_enable_event(struct lttng_kernel_event_common *event)
+{
+ return -ENOSYS;
+}
+
+static inline int lttng_syscall_filter_disable_event(struct lttng_kernel_event_common *event)
+{
+ return -ENOSYS;
+}
+
+static inline int lttng_syscalls_unregister_syscall_table(struct lttng_kernel_syscall_table *syscall_table)
+{
+ return 0;
+}
+
+static inline int lttng_syscalls_destroy_syscall_table(struct lttng_kernel_syscall_table *syscall_table)
+{
+ return 0;
+}
+
+static inline long lttng_syscall_table_get_active_mask(struct lttng_kernel_syscall_table *syscall_table,
+ struct lttng_kernel_abi_syscall_mask __user *usyscall_mask)
+{
+ return -ENOSYS;
+}
+
+static inline int lttng_syscalls_create_matching_event_notifiers(struct lttng_event_notifier_enabler *event_notifier_enabler)
+{
+ return -ENOSYS;
+}
+
+#endif
+
+#ifdef CONFIG_KPROBES
+int lttng_kprobes_register_event(const char *name,
+ const char *symbol_name,
+ uint64_t offset,
+ uint64_t addr,
+ struct lttng_kernel_event_common *event);
+void lttng_kprobes_unregister_event(struct lttng_kernel_event_common *event);
+void lttng_kprobes_destroy_event_private(struct lttng_kernel_event_common *event);
+#else
+static inline
+int lttng_kprobes_register_event(const char *name,
+ const char *symbol_name,
+ uint64_t offset,
+ uint64_t addr,
+ struct lttng_kernel_event_common *event)
+{
+ return -ENOSYS;
+}
+
+static inline
+void lttng_kprobes_unregister_event(struct lttng_kernel_event_common *event)
+{
+}
+
+static inline
+void lttng_kprobes_destroy_event_private(struct lttng_kernel_event_common *event)
+{
+}
+#endif
+
+int lttng_event_add_callsite(struct lttng_kernel_event_common *event,
+ struct lttng_kernel_abi_event_callsite __user *callsite);
+
+#ifdef CONFIG_UPROBES
+int lttng_uprobes_register_event(const char *name,
+ int fd, struct lttng_kernel_event_common *event);
+int lttng_uprobes_event_add_callsite(struct lttng_kernel_event_common *event,
+ struct lttng_kernel_abi_event_callsite __user *callsite);
+void lttng_uprobes_unregister_event(struct lttng_kernel_event_common *event);
+void lttng_uprobes_destroy_event_private(struct lttng_kernel_event_common *event);
+#else
+static inline
+int lttng_uprobes_register_event(const char *name,
+ int fd, struct lttng_kernel_event_common *event)
+{
+ return -ENOSYS;
+}
+
+static inline
+int lttng_uprobes_event_add_callsite(struct lttng_kernel_event_common *event,
+ struct lttng_kernel_abi_event_callsite __user *callsite)
+{
+ return -ENOSYS;
+}
+
+static inline
+void lttng_uprobes_unregister_event(struct lttng_kernel_event_common *event)
+{
+}
+
+static inline
+void lttng_uprobes_destroy_event_private(struct lttng_kernel_event_common *event)
+{
+}
+#endif
+
+#ifdef CONFIG_KRETPROBES
+int lttng_kretprobes_register(const char *name,
+ const char *symbol_name,
+ uint64_t offset,
+ uint64_t addr,
+ struct lttng_kernel_event_common *event_entry,
+ struct lttng_kernel_event_common *event_exit);
+void lttng_kretprobes_unregister(struct lttng_kernel_event_common *event);
+void lttng_kretprobes_destroy_private(struct lttng_kernel_event_common *event);
+int lttng_kretprobes_event_enable_state(struct lttng_kernel_event_common *event,
+ int enable);
+#else
+static inline
+int lttng_kretprobes_register(const char *name,
+ const char *symbol_name,
+ uint64_t offset,
+ uint64_t addr,
+ struct lttng_kernel_event_common *event_entry,
+ struct lttng_kernel_event_common *event_exit)
+{
+ return -ENOSYS;
+}
+
+static inline
+void lttng_kretprobes_unregister(struct lttng_kernel_event_common *event)
+{