X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=liblttng-ust%2Fust-events-internal.h;h=e568d5ee352a81aa8af0658c4fc12062f54e54fb;hb=daacdbfc04fe07ecff0a0d1878b4f48d38912c78;hp=24393936f2df4b40f4ab48cbd099e28d8612fb2c;hpb=ab249ecfea7ddc352e1fb5c3b97a4f0fbb62f3ca;p=lttng-ust.git

diff --git a/liblttng-ust/ust-events-internal.h b/liblttng-ust/ust-events-internal.h
index 24393936..e568d5ee 100644
--- a/liblttng-ust/ust-events-internal.h
+++ b/liblttng-ust/ust-events-internal.h
@@ -1,38 +1,76 @@
-#ifndef _LTTNG_UST_EVENTS_INTERNAL_H
-#define _LTTNG_UST_EVENTS_INTERNAL_H
-
 /*
- * ust-events-internal.h
- *
- * Copyright 2019 (c) - Francis Deslauriers <francis.deslauriers@efficios.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
+ * SPDX-License-Identifier: MIT
  *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
+ * Copyright 2019 (c) Francis Deslauriers <francis.deslauriers@efficios.com>
  */
 
+#ifndef _LTTNG_UST_EVENTS_INTERNAL_H
+#define _LTTNG_UST_EVENTS_INTERNAL_H
+
 #include <stdint.h>
 
 #include <urcu/list.h>
 #include <urcu/hlist.h>
 
-#include <helper.h>
 #include <lttng/ust-events.h>
 
+#include "ust-context-provider.h"
+
+struct lttng_ust_abi_obj;
+
+union lttng_ust_abi_args {
+	struct {
+		void *chan_data;
+		int wakeup_fd;
+	} channel;
+	struct {
+		int shm_fd;
+		int wakeup_fd;
+	} stream;
+	struct {
+		struct lttng_ust_abi_field_iter entry;
+	} field_list;
+	struct {
+		char *ctxname;
+	} app_context;
+	struct {
+		int event_notifier_notif_fd;
+	} event_notifier_handle;
+	struct {
+		void *counter_data;
+	} counter;
+	struct {
+		int shm_fd;
+	} counter_shm;
+};
+
+struct lttng_ust_abi_objd_ops {
+	long (*cmd)(int objd, unsigned int cmd, unsigned long arg,
+		union lttng_ust_abi_args *args, void *owner);
+	int (*release)(int objd);
+};
+
+enum lttng_enabler_format_type {
+	LTTNG_ENABLER_FORMAT_STAR_GLOB,
+	LTTNG_ENABLER_FORMAT_EVENT,
+};
+
+/*
+ * Enabler field, within whatever object is enabling an event. Target of
+ * backward reference.
+ */
+struct lttng_enabler {
+	enum lttng_enabler_format_type format_type;
+
+	/* head list of struct lttng_ust_filter_bytecode_node */
+	struct cds_list_head filter_bytecode_head;
+	/* head list of struct lttng_ust_excluder_node */
+	struct cds_list_head excluder_head;
+
+	struct lttng_ust_abi_event event_param;
+	unsigned int enabled:1;
+};
+
 struct lttng_event_enabler {
 	struct lttng_enabler base;
 	struct cds_list_head node;	/* per-session list of enablers */
@@ -41,18 +79,22 @@ struct lttng_event_enabler {
 	 * Unused, but kept around to make it explicit that the tracer can do
 	 * it.
 	 */
-	struct lttng_ctx *ctx;
+	struct lttng_ust_ctx *ctx;
 };
 
 struct lttng_event_notifier_enabler {
 	struct lttng_enabler base;
-	struct cds_list_head node;	/* per-app list of event notifier enablers */
+	uint64_t error_counter_index;
+	struct cds_list_head node;	/* per-app list of event_notifier enablers */
+	struct cds_list_head capture_bytecode_head;
 	struct lttng_event_notifier_group *group; /* weak ref */
 	uint64_t user_token;		/* User-provided token */
+	uint64_t num_captures;
 };
 
 enum lttng_ust_bytecode_node_type {
 	LTTNG_UST_BYTECODE_NODE_TYPE_FILTER,
+	LTTNG_UST_BYTECODE_NODE_TYPE_CAPTURE,
 };
 
 struct lttng_ust_bytecode_node {
@@ -74,7 +116,202 @@ struct lttng_ust_excluder_node {
 	 * struct lttng_ust_event_exclusion had variable sized array,
 	 * must be last field.
 	 */
-	struct lttng_ust_event_exclusion excluder;
+	struct lttng_ust_abi_event_exclusion excluder;
+};
+
+/* Data structures used by the tracer. */
+
+struct tp_list_entry {
+	struct lttng_ust_abi_tracepoint_iter tp;
+	struct cds_list_head head;
+};
+
+struct lttng_ust_tracepoint_list {
+	struct tp_list_entry *iter;
+	struct cds_list_head head;
+};
+
+struct tp_field_list_entry {
+	struct lttng_ust_abi_field_iter field;
+	struct cds_list_head head;
+};
+
+struct lttng_ust_field_list {
+	struct tp_field_list_entry *iter;
+	struct cds_list_head head;
+};
+
+/*
+ * Objects in a linked-list of enablers, owned by an event or event_notifier.
+ * This is used because an event (or a event_notifier) can be enabled by more
+ * than one enabler and we want a quick way to iterate over all enablers of an
+ * object.
+ *
+ * For example, event rules "my_app:a*" and "my_app:ab*" will both match the
+ * event with the name "my_app:abc".
+ */
+struct lttng_enabler_ref {
+	struct cds_list_head node;		/* enabler ref list */
+	struct lttng_enabler *ref;		/* backward ref */
+};
+
+#define LTTNG_COUNTER_DIMENSION_MAX	8
+struct lttng_counter_dimension {
+	uint64_t size;
+	uint64_t underflow_index;
+	uint64_t overflow_index;
+	uint8_t has_underflow;
+	uint8_t has_overflow;
+};
+
+struct lttng_counter_ops {
+	struct lib_counter *(*counter_create)(size_t nr_dimensions,
+			const struct lttng_counter_dimension *dimensions,
+			int64_t global_sum_step,
+			int global_counter_fd,
+			int nr_counter_cpu_fds,
+			const int *counter_cpu_fds,
+			bool is_daemon);
+	void (*counter_destroy)(struct lib_counter *counter);
+	int (*counter_add)(struct lib_counter *counter,
+			const size_t *dimension_indexes, int64_t v);
+	int (*counter_read)(struct lib_counter *counter,
+			const size_t *dimension_indexes, int cpu,
+			int64_t *value, bool *overflow, bool *underflow);
+	int (*counter_aggregate)(struct lib_counter *counter,
+			const size_t *dimension_indexes, int64_t *value,
+			bool *overflow, bool *underflow);
+	int (*counter_clear)(struct lib_counter *counter, const size_t *dimension_indexes);
+};
+
+struct lttng_counter {
+	int objd;
+	struct lttng_event_notifier_group *event_notifier_group;    /* owner */
+	struct lttng_counter_transport *transport;
+	struct lib_counter *counter;
+	struct lttng_counter_ops *ops;
+};
+
+#define LTTNG_UST_EVENT_HT_BITS		12
+#define LTTNG_UST_EVENT_HT_SIZE		(1U << LTTNG_UST_EVENT_HT_BITS)
+
+struct lttng_ust_event_ht {
+	struct cds_hlist_head table[LTTNG_UST_EVENT_HT_SIZE];
+};
+
+#define LTTNG_UST_EVENT_NOTIFIER_HT_BITS		12
+#define LTTNG_UST_EVENT_NOTIFIER_HT_SIZE		(1U << LTTNG_UST_EVENT_NOTIFIER_HT_BITS)
+struct lttng_ust_event_notifier_ht {
+	struct cds_hlist_head table[LTTNG_UST_EVENT_NOTIFIER_HT_SIZE];
+};
+
+#define LTTNG_UST_ENUM_HT_BITS		12
+#define LTTNG_UST_ENUM_HT_SIZE		(1U << LTTNG_UST_ENUM_HT_BITS)
+
+struct lttng_ust_enum_ht {
+	struct cds_hlist_head table[LTTNG_UST_ENUM_HT_SIZE];
+};
+
+struct lttng_event_notifier_group {
+	int objd;
+	void *owner;
+	int notification_fd;
+	struct cds_list_head node;		/* Event notifier group handle list */
+	struct cds_list_head enablers_head;
+	struct cds_list_head event_notifiers_head;	/* list of event_notifiers */
+	struct lttng_ust_event_notifier_ht event_notifiers_ht; /* hashtable of event_notifiers */
+	struct lttng_ust_ctx *ctx;			/* contexts for filters. */
+
+	struct lttng_counter *error_counter;
+	size_t error_counter_len;
+};
+
+struct lttng_transport {
+	char *name;
+	struct cds_list_head node;
+	struct lttng_ust_channel_ops ops;
+	const struct lttng_ust_lib_ring_buffer_config *client_config;
+};
+
+struct lttng_counter_transport {
+	char *name;
+	struct cds_list_head node;
+	struct lttng_counter_ops ops;
+	const struct lib_counter_config *client_config;
+};
+
+struct lttng_ust_event_common_private {
+	struct lttng_ust_event_common *pub;	/* Public event interface */
+
+	const struct lttng_ust_event_desc *desc;
+	/* Backward references: list of lttng_enabler_ref (ref to enablers) */
+	struct cds_list_head enablers_ref_head;
+	int registered;			/* has reg'd tracepoint probe */
+	uint64_t user_token;
+};
+
+struct lttng_ust_event_recorder_private {
+	struct lttng_ust_event_common_private parent;
+
+	struct lttng_ust_event_recorder *pub;	/* Public event interface */
+	struct cds_list_head node;		/* Event recorder list */
+	struct cds_hlist_node hlist;		/* Hash table of event recorders */
+};
+
+struct lttng_ust_event_notifier_private {
+	struct lttng_ust_event_common_private parent;
+
+	struct lttng_ust_event_notifier *pub;	/* Public event notifier interface */
+	struct lttng_event_notifier_group *group; /* weak ref */
+	size_t num_captures;			/* Needed to allocate the msgpack array. */
+	uint64_t error_counter_index;
+	struct cds_list_head node;		/* Event notifier list */
+	struct cds_hlist_node hlist;		/* Hash table of event notifiers */
+};
+
+struct lttng_ust_bytecode_runtime_private {
+	struct bytecode_runtime *pub;	/* Public bytecode runtime interface */
+
+	struct lttng_ust_bytecode_node *bc;
+	int link_failed;
+	/*
+	 * Pointer to a URCU-protected pointer owned by an `struct
+	 * lttng_session`or `struct lttng_event_notifier_group`.
+	 */
+	struct lttng_ust_ctx **pctx;
+};
+
+struct lttng_ust_session_private {
+	struct lttng_session *pub;		/* Public session interface */
+
+	int been_active;			/* Been active ? */
+	int objd;				/* Object associated */
+	struct cds_list_head chan_head;		/* Channel list head */
+	struct cds_list_head events_head;	/* list of events */
+	struct cds_list_head node;		/* Session list */
+
+	/* New UST 2.1 */
+	/* List of enablers */
+	struct cds_list_head enablers_head;
+	struct lttng_ust_event_ht events_ht;	/* ht of events */
+	void *owner;				/* object owner */
+	int tstate:1;				/* Transient enable state */
+
+	/* New UST 2.4 */
+	int statedump_pending:1;
+
+	/* New UST 2.8 */
+	struct lttng_ust_enum_ht enums_ht;	/* ht of enumerations */
+	struct cds_list_head enums_head;
+	struct lttng_ust_ctx *ctx;			/* contexts for filters. */
+};
+
+struct lttng_enum {
+	const struct lttng_ust_enum_desc *desc;
+	struct lttng_session *session;
+	struct cds_list_head node;	/* Enum list in session */
+	struct cds_hlist_node hlist;	/* Session ht of enums */
+	uint64_t id;			/* Enumeration ID in sessiond */
 };
 
 static inline
@@ -97,69 +334,70 @@ struct lttng_enabler *lttng_event_notifier_enabler_as_enabler(
  * On success, returns a `struct lttng_event_enabler`,
  * On memory error, returns NULL.
  */
-LTTNG_HIDDEN
+__attribute__((visibility("hidden")))
 struct lttng_event_enabler *lttng_event_enabler_create(
 		enum lttng_enabler_format_type format_type,
-		struct lttng_ust_event *event_param,
+		struct lttng_ust_abi_event *event_param,
 		struct lttng_channel *chan);
 
 /*
  * Destroy a `struct lttng_event_enabler` object.
  */
-LTTNG_HIDDEN
+__attribute__((visibility("hidden")))
 void lttng_event_enabler_destroy(struct lttng_event_enabler *enabler);
 
 /*
  * Enable a `struct lttng_event_enabler` object and all events related to this
  * enabler.
  */
-LTTNG_HIDDEN
+__attribute__((visibility("hidden")))
 int lttng_event_enabler_enable(struct lttng_event_enabler *enabler);
 
 /*
  * Disable a `struct lttng_event_enabler` object and all events related to this
  * enabler.
  */
-LTTNG_HIDDEN
+__attribute__((visibility("hidden")))
 int lttng_event_enabler_disable(struct lttng_event_enabler *enabler);
 
 /*
  * Attach filter bytecode program to `struct lttng_event_enabler` and all
  * events related to this enabler.
  */
-LTTNG_HIDDEN
+__attribute__((visibility("hidden")))
 int lttng_event_enabler_attach_filter_bytecode(
 		struct lttng_event_enabler *enabler,
-		struct lttng_ust_bytecode_node *bytecode);
+		struct lttng_ust_bytecode_node **bytecode);
 
 /*
  * Attach an application context to an event enabler.
  *
  * Not implemented.
  */
-LTTNG_HIDDEN
+__attribute__((visibility("hidden")))
 int lttng_event_enabler_attach_context(struct lttng_event_enabler *enabler,
-		struct lttng_ust_context *ctx);
+		struct lttng_ust_abi_context *ctx);
 
 /*
  * Attach exclusion list to `struct lttng_event_enabler` and all
  * events related to this enabler.
  */
-LTTNG_HIDDEN
+__attribute__((visibility("hidden")))
 int lttng_event_enabler_attach_exclusion(struct lttng_event_enabler *enabler,
-		struct lttng_ust_excluder_node *excluder);
+		struct lttng_ust_excluder_node **excluder);
 
 /*
- * Synchronize bytecodes for the enabler and the event.
+ * Synchronize bytecodes for the enabler and the instance (event or
+ * event_notifier).
  *
- * This function goes over all bytecode programs of the event enabler to ensure
- * each is linked to the provided event.
+ * This function goes over all bytecode programs of the enabler (event or
+ * event_notifier enabler) to ensure each is linked to the provided instance.
  */
-LTTNG_HIDDEN
-void lttng_enabler_link_bytecode(const struct lttng_event_desc *event_desc,
-		struct lttng_ctx **ctx,
-		struct cds_list_head *bytecode_runtime_head,
-		struct lttng_enabler *enabler);
+__attribute__((visibility("hidden")))
+void lttng_enabler_link_bytecode(const struct lttng_ust_event_desc *event_desc,
+		struct lttng_ust_ctx **ctx,
+		struct cds_list_head *instance_bytecode_runtime_head,
+		struct cds_list_head *enabler_bytecode_runtime_head);
 
 /*
  * Allocate and initialize a `struct lttng_event_notifier_group` object.
@@ -167,13 +405,13 @@ void lttng_enabler_link_bytecode(const struct lttng_event_desc *event_desc,
  * On success, returns a `struct lttng_triggre_group`,
  * on memory error, returns NULL.
  */
-LTTNG_HIDDEN
+__attribute__((visibility("hidden")))
 struct lttng_event_notifier_group *lttng_event_notifier_group_create(void);
 
 /*
  * Destroy a `struct lttng_event_notifier_group` object.
  */
-LTTNG_HIDDEN
+__attribute__((visibility("hidden")))
 void lttng_event_notifier_group_destroy(
 		struct lttng_event_notifier_group *event_notifier_group);
 
@@ -183,16 +421,16 @@ void lttng_event_notifier_group_destroy(
  * On success, returns a `struct lttng_event_notifier_enabler`,
  * On memory error, returns NULL.
  */
-LTTNG_HIDDEN
+__attribute__((visibility("hidden")))
 struct lttng_event_notifier_enabler *lttng_event_notifier_enabler_create(
 		struct lttng_event_notifier_group *event_notifier_group,
 		enum lttng_enabler_format_type format_type,
-		struct lttng_ust_event_notifier *event_notifier_param);
+		struct lttng_ust_abi_event_notifier *event_notifier_param);
 
 /*
  * Destroy a `struct lttng_event_notifier_enabler` object.
  */
-LTTNG_HIDDEN
+__attribute__((visibility("hidden")))
 void lttng_event_notifier_enabler_destroy(
 		struct lttng_event_notifier_enabler *event_notifier_enabler);
 
@@ -200,7 +438,7 @@ void lttng_event_notifier_enabler_destroy(
  * Enable a `struct lttng_event_notifier_enabler` object and all event
  * notifiers related to this enabler.
  */
-LTTNG_HIDDEN
+__attribute__((visibility("hidden")))
 int lttng_event_notifier_enabler_enable(
 		struct lttng_event_notifier_enabler *event_notifier_enabler);
 
@@ -208,7 +446,7 @@ int lttng_event_notifier_enabler_enable(
  * Disable a `struct lttng_event_notifier_enabler` object and all event
  * notifiers related to this enabler.
  */
-LTTNG_HIDDEN
+__attribute__((visibility("hidden")))
 int lttng_event_notifier_enabler_disable(
 		struct lttng_event_notifier_enabler *event_notifier_enabler);
 
@@ -216,29 +454,184 @@ int lttng_event_notifier_enabler_disable(
  * Attach filter bytecode program to `struct lttng_event_notifier_enabler` and
  * all event notifiers related to this enabler.
  */
-LTTNG_HIDDEN
+__attribute__((visibility("hidden")))
 int lttng_event_notifier_enabler_attach_filter_bytecode(
 		struct lttng_event_notifier_enabler *event_notifier_enabler,
-		struct lttng_ust_bytecode_node *bytecode);
+		struct lttng_ust_bytecode_node **bytecode);
+
+/*
+ * Attach capture bytecode program to `struct lttng_event_notifier_enabler` and
+ * all event_notifiers related to this enabler.
+ */
+__attribute__((visibility("hidden")))
+int lttng_event_notifier_enabler_attach_capture_bytecode(
+		struct lttng_event_notifier_enabler *event_notifier_enabler,
+		struct lttng_ust_bytecode_node **bytecode);
 
 /*
  * Attach exclusion list to `struct lttng_event_notifier_enabler` and all
  * event notifiers related to this enabler.
  */
-LTTNG_HIDDEN
+__attribute__((visibility("hidden")))
 int lttng_event_notifier_enabler_attach_exclusion(
 		struct lttng_event_notifier_enabler *event_notifier_enabler,
-		struct lttng_ust_excluder_node *excluder);
+		struct lttng_ust_excluder_node **excluder);
 
-LTTNG_HIDDEN
-void lttng_free_event_notifier_filter_runtime(
-		struct lttng_event_notifier *event_notifier);
+__attribute__((visibility("hidden")))
+void lttng_free_event_filter_runtime(struct lttng_ust_event_common *event);
 
 /*
  * Connect the probe on all enablers matching this event description.
  * Called on library load.
  */
-LTTNG_HIDDEN
+__attribute__((visibility("hidden")))
 int lttng_fix_pending_event_notifiers(void);
 
+__attribute__((visibility("hidden")))
+struct lttng_counter *lttng_ust_counter_create(
+		const char *counter_transport_name,
+		size_t number_dimensions, const struct lttng_counter_dimension *dimensions);
+
+#ifdef HAVE_PERF_EVENT
+
+__attribute__((visibility("hidden")))
+int lttng_add_perf_counter_to_ctx(uint32_t type,
+				  uint64_t config,
+				  const char *name,
+				  struct lttng_ust_ctx **ctx);
+
+__attribute__((visibility("hidden")))
+int lttng_perf_counter_init(void);
+
+__attribute__((visibility("hidden")))
+void lttng_perf_counter_exit(void);
+
+#else /* #ifdef HAVE_PERF_EVENT */
+
+static inline
+int lttng_add_perf_counter_to_ctx(uint32_t type,
+				  uint64_t config,
+				  const char *name,
+				  struct lttng_ust_ctx **ctx)
+{
+	return -ENOSYS;
+}
+static inline
+int lttng_perf_counter_init(void)
+{
+	return 0;
+}
+static inline
+void lttng_perf_counter_exit(void)
+{
+}
+#endif /* #else #ifdef HAVE_PERF_EVENT */
+
+__attribute__((visibility("hidden")))
+int lttng_probes_get_event_list(struct lttng_ust_tracepoint_list *list);
+
+__attribute__((visibility("hidden")))
+void lttng_probes_prune_event_list(struct lttng_ust_tracepoint_list *list);
+
+__attribute__((visibility("hidden")))
+int lttng_probes_get_field_list(struct lttng_ust_field_list *list);
+
+__attribute__((visibility("hidden")))
+void lttng_probes_prune_field_list(struct lttng_ust_field_list *list);
+
+__attribute__((visibility("hidden")))
+struct lttng_ust_abi_tracepoint_iter *
+	lttng_ust_tracepoint_list_get_iter_next(struct lttng_ust_tracepoint_list *list);
+
+__attribute__((visibility("hidden")))
+struct lttng_ust_abi_field_iter *
+	lttng_ust_field_list_get_iter_next(struct lttng_ust_field_list *list);
+
+__attribute__((visibility("hidden")))
+struct lttng_session *lttng_session_create(void);
+
+__attribute__((visibility("hidden")))
+int lttng_session_enable(struct lttng_session *session);
+
+__attribute__((visibility("hidden")))
+int lttng_session_disable(struct lttng_session *session);
+
+__attribute__((visibility("hidden")))
+int lttng_session_statedump(struct lttng_session *session);
+
+__attribute__((visibility("hidden")))
+void lttng_session_destroy(struct lttng_session *session);
+
+/*
+ * Called with ust lock held.
+ */
+__attribute__((visibility("hidden")))
+int lttng_session_active(void);
+
+__attribute__((visibility("hidden")))
+struct cds_list_head *lttng_get_sessions(void);
+
+__attribute__((visibility("hidden")))
+void lttng_handle_pending_statedump(void *owner);
+
+__attribute__((visibility("hidden")))
+struct lttng_channel *lttng_channel_create(struct lttng_session *session,
+				       const char *transport_name,
+				       void *buf_addr,
+				       size_t subbuf_size, size_t num_subbuf,
+				       unsigned int switch_timer_interval,
+				       unsigned int read_timer_interval,
+				       int **shm_fd, int **wait_fd,
+				       uint64_t **memory_map_size,
+				       struct lttng_channel *chan_priv_init);
+
+__attribute__((visibility("hidden")))
+int lttng_channel_enable(struct lttng_channel *channel);
+
+__attribute__((visibility("hidden")))
+int lttng_channel_disable(struct lttng_channel *channel);
+
+__attribute__((visibility("hidden")))
+void lttng_transport_register(struct lttng_transport *transport);
+
+__attribute__((visibility("hidden")))
+void lttng_transport_unregister(struct lttng_transport *transport);
+
+/* This is ABI between liblttng-ust and liblttng-ust-ctl */
+struct lttng_transport *lttng_ust_transport_find(const char *name);
+
+/* This is ABI between liblttng-ust and liblttng-ust-dl */
+void lttng_ust_dl_update(void *ip);
+
+__attribute__((visibility("hidden")))
+void lttng_probe_provider_unregister_events(struct lttng_ust_probe_desc *desc);
+
+__attribute__((visibility("hidden")))
+int lttng_fix_pending_events(void);
+
+__attribute__((visibility("hidden")))
+struct cds_list_head *lttng_get_probe_list_head(void);
+
+__attribute__((visibility("hidden")))
+struct lttng_enum *lttng_ust_enum_get_from_desc(struct lttng_session *session,
+		const struct lttng_ust_enum_desc *enum_desc);
+
+__attribute__((visibility("hidden")))
+int lttng_abi_create_root_handle(void);
+
+__attribute__((visibility("hidden")))
+const struct lttng_ust_abi_objd_ops *lttng_ust_abi_objd_ops(int id);
+
+__attribute__((visibility("hidden")))
+int lttng_ust_abi_objd_unref(int id, int is_owner);
+
+__attribute__((visibility("hidden")))
+void lttng_ust_abi_exit(void);
+
+__attribute__((visibility("hidden")))
+void lttng_ust_abi_events_exit(void);
+
+__attribute__((visibility("hidden")))
+void lttng_ust_abi_objd_table_owner_cleanup(void *owner);
+
 #endif /* _LTTNG_UST_EVENTS_INTERNAL_H */