X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=liblttng-ust%2Fust-events-internal.h;h=d84d32ee1af7be827d2b6ac571f3d4297b73ba1d;hb=6ba6fd60507f8e045bdc4f1be14e9d99c6a15f7f;hp=45c581b178607c67bacebbcf770af7b4facfe355;hpb=2e70391c18fa78eb8dfac15c0f2e43e82691f189;p=lttng-ust.git diff --git a/liblttng-ust/ust-events-internal.h b/liblttng-ust/ust-events-internal.h index 45c581b1..d84d32ee 100644 --- a/liblttng-ust/ust-events-internal.h +++ b/liblttng-ust/ust-events-internal.h @@ -7,14 +7,52 @@ #ifndef _LTTNG_UST_EVENTS_INTERNAL_H #define _LTTNG_UST_EVENTS_INTERNAL_H +#include #include #include #include -#include #include +#include +#include "ust-context-provider.h" + +struct lttng_ust_abi_obj; +struct lttng_event_notifier_group; + +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, @@ -32,19 +70,19 @@ struct lttng_enabler { /* head list of struct lttng_ust_excluder_node */ struct cds_list_head excluder_head; - struct lttng_ust_event event_param; + 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 */ - struct lttng_channel *chan; + struct lttng_ust_channel_buffer *chan; /* * 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 { @@ -57,13 +95,13 @@ struct lttng_event_notifier_enabler { uint64_t num_captures; }; -enum lttng_ust_bytecode_node_type { - LTTNG_UST_BYTECODE_NODE_TYPE_FILTER, - LTTNG_UST_BYTECODE_NODE_TYPE_CAPTURE, +enum lttng_ust_bytecode_type { + LTTNG_UST_BYTECODE_TYPE_FILTER, + LTTNG_UST_BYTECODE_TYPE_CAPTURE, }; struct lttng_ust_bytecode_node { - enum lttng_ust_bytecode_node_type type; + enum lttng_ust_bytecode_type type; struct cds_list_head node; struct lttng_enabler *enabler; struct { @@ -74,6 +112,26 @@ struct lttng_ust_bytecode_node { } bc; }; +/* + * Bytecode interpreter return value. + */ +enum lttng_ust_bytecode_interpreter_ret { + LTTNG_UST_BYTECODE_INTERPRETER_ERROR = -1, + LTTNG_UST_BYTECODE_INTERPRETER_OK = 0, +}; + +struct lttng_interpreter_output; +struct lttng_ust_bytecode_runtime_private; + +enum lttng_ust_bytecode_filter_result { + LTTNG_UST_BYTECODE_FILTER_ACCEPT = 0, + LTTNG_UST_BYTECODE_FILTER_REJECT = 1, +}; + +struct lttng_ust_bytecode_filter_ctx { + enum lttng_ust_bytecode_filter_result result; +}; + struct lttng_ust_excluder_node { struct cds_list_head node; struct lttng_enabler *enabler; @@ -81,13 +139,13 @@ 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_tracepoint_iter tp; + struct lttng_ust_abi_tracepoint_iter tp; struct cds_list_head head; }; @@ -97,7 +155,7 @@ struct lttng_ust_tracepoint_list { }; struct tp_field_list_entry { - struct lttng_ust_field_iter field; + struct lttng_ust_abi_field_iter field; struct cds_list_head head; }; @@ -129,6 +187,26 @@ struct lttng_counter_dimension { 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 */ @@ -137,65 +215,107 @@ struct lttng_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 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_ctx *ctx; /* contexts for filters. */ + struct lttng_ust_ctx *ctx; /* contexts for filters. */ struct lttng_counter *error_counter; size_t error_counter_len; }; struct lttng_transport { - char *name; + const char *name; struct cds_list_head node; - struct lttng_channel_ops ops; + struct lttng_ust_channel_buffer_ops ops; const struct lttng_ust_lib_ring_buffer_config *client_config; }; struct lttng_counter_transport { - char *name; + const 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_event_common *pub; /* Public event interface */ + struct lttng_ust_event_common *pub; /* Public event interface */ - const struct lttng_event_desc *desc; + 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 */ + int registered; /* has reg'd tracepoint probe */ + uint64_t user_token; + + int has_enablers_without_filter_bytecode; + /* list of struct lttng_ust_bytecode_runtime, sorted by seqnum */ + struct cds_list_head filter_bytecode_runtime_head; }; 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 list in session */ - struct cds_hlist_node hlist; /* session ht of events */ + struct cds_list_head node; /* Event recorder list */ + struct cds_hlist_node hlist; /* Hash table of event recorders */ + struct lttng_ust_ctx *ctx; + unsigned int id; }; -struct lttng_ust_bytecode_runtime_private { - struct bytecode_runtime *pub; /* Public bytecode runtime interface */ +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 cds_list_head capture_bytecode_runtime_head; +}; + +struct lttng_ust_bytecode_runtime { + enum lttng_ust_bytecode_type type; struct lttng_ust_bytecode_node *bc; int link_failed; + int (*interpreter_func)(struct lttng_ust_bytecode_runtime *bytecode_runtime, + const char *interpreter_stack_data, + void *ctx); + struct cds_list_head node; /* list of bytecode runtime in event */ /* * Pointer to a URCU-protected pointer owned by an `struct * lttng_session`or `struct lttng_event_notifier_group`. */ - struct lttng_ctx **pctx; + struct lttng_ust_ctx **pctx; }; struct lttng_ust_session_private { - struct lttng_session *pub; /* Public session interface */ + struct lttng_ust_session *pub; /* Public session interface */ int been_active; /* Been active ? */ int objd; /* Object associated */ @@ -203,22 +323,234 @@ struct lttng_ust_session_private { 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_ctx *ctx; /* contexts for filters. */ + struct lttng_ust_ctx *ctx; /* contexts for filters. */ + + unsigned char uuid[LTTNG_UST_UUID_LEN]; /* Trace session unique ID */ + bool uuid_set; /* Is uuid set ? */ +}; + +struct lttng_enum { + const struct lttng_ust_enum_desc *desc; + struct lttng_ust_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 */ +}; + +struct lttng_ust_shm_handle; + +struct lttng_ust_channel_buffer_ops_private { + struct lttng_ust_channel_buffer_ops *pub; /* Public channel buffer ops interface */ + + struct lttng_ust_channel_buffer *(*channel_create)(const char *name, + void *buf_addr, + size_t subbuf_size, size_t num_subbuf, + unsigned int switch_timer_interval, + unsigned int read_timer_interval, + unsigned char *uuid, + uint32_t chan_id, + const int *stream_fds, int nr_stream_fds, + int64_t blocking_timeout); + void (*channel_destroy)(struct lttng_ust_channel_buffer *chan); + /* + * packet_avail_size returns the available size in the current + * packet. Note that the size returned is only a hint, since it + * may change due to concurrent writes. + */ + size_t (*packet_avail_size)(struct lttng_ust_channel_buffer *chan); + int (*is_finalized)(struct lttng_ust_channel_buffer *chan); + int (*is_disabled)(struct lttng_ust_channel_buffer *chan); + int (*flush_buffer)(struct lttng_ust_channel_buffer *chan); +}; + +struct lttng_ust_channel_common_private { + struct lttng_ust_channel_common *pub; /* Public channel interface */ + + int objd; /* Object associated with channel. */ + int tstate:1; /* Transient enable state */ +}; + +struct lttng_ust_channel_buffer_private { + struct lttng_ust_channel_common_private parent; + + struct lttng_ust_channel_buffer *pub; /* Public channel buffer interface */ + struct cds_list_head node; /* Channel list in session */ + int header_type; /* 0: unset, 1: compact, 2: large */ + unsigned int id; /* Channel ID */ + enum lttng_ust_abi_chan_type type; + struct lttng_ust_ctx *ctx; + struct lttng_ust_lib_ring_buffer_channel *rb_chan; /* Ring buffer channel */ + unsigned char uuid[LTTNG_UST_UUID_LEN]; /* Trace session unique ID */ +}; + +/* + * IMPORTANT: this structure is part of the ABI between the consumer + * daemon and the UST library within traced applications. Changing it + * breaks the UST communication protocol. + * + * TODO: remove unused fields on next UST communication protocol + * breaking update. + */ +struct lttng_ust_abi_channel_config { + void *unused1; + int unused2; + void *unused3; + void *unused4; + int unused5; + struct cds_list_head unused6; + void *unused7; + int unused8; + void *unused9; + + /* Channel ID */ + unsigned int id; + enum lttng_ust_abi_chan_type unused10; + unsigned char uuid[LTTNG_UST_UUID_LEN]; /* Trace session unique ID */ + int unused11:1; +}; + +/* Global (filter), event and channel contexts. */ +struct lttng_ust_ctx { + struct lttng_ust_ctx_field *fields; + unsigned int nr_fields; + unsigned int allocated_fields; + unsigned int largest_align; +}; + +struct lttng_ust_registered_probe { + const struct lttng_ust_probe_desc *desc; + + struct cds_list_head head; /* chain registered probes */ + struct cds_list_head lazy_init_head; + int lazy; /* lazy registration */ +}; + +/* + * Context field + */ + +struct lttng_ust_ctx_field { + const struct lttng_ust_event_field *event_field; + size_t (*get_size)(void *priv, size_t offset); + void (*record)(void *priv, struct lttng_ust_lib_ring_buffer_ctx *ctx, + struct lttng_ust_channel_buffer *chan); + void (*get_value)(void *priv, struct lttng_ust_ctx_value *value); + void (*destroy)(void *priv); + void *priv; }; +static inline +const struct lttng_ust_type_integer *lttng_ust_get_type_integer(const struct lttng_ust_type_common *type) +{ + if (type->type != lttng_ust_type_integer) + return NULL; + return caa_container_of(type, const struct lttng_ust_type_integer, parent); +} + +static inline +const struct lttng_ust_type_float *lttng_ust_get_type_float(const struct lttng_ust_type_common *type) +{ + if (type->type != lttng_ust_type_float) + return NULL; + return caa_container_of(type, const struct lttng_ust_type_float, parent); +} + +static inline +const struct lttng_ust_type_string *lttng_ust_get_type_string(const struct lttng_ust_type_common *type) +{ + if (type->type != lttng_ust_type_string) + return NULL; + return caa_container_of(type, const struct lttng_ust_type_string, parent); +} + +static inline +const struct lttng_ust_type_enum *lttng_ust_get_type_enum(const struct lttng_ust_type_common *type) +{ + if (type->type != lttng_ust_type_enum) + return NULL; + return caa_container_of(type, const struct lttng_ust_type_enum, parent); +} + +static inline +const struct lttng_ust_type_array *lttng_ust_get_type_array(const struct lttng_ust_type_common *type) +{ + if (type->type != lttng_ust_type_array) + return NULL; + return caa_container_of(type, const struct lttng_ust_type_array, parent); +} + +static inline +const struct lttng_ust_type_sequence *lttng_ust_get_type_sequence(const struct lttng_ust_type_common *type) +{ + if (type->type != lttng_ust_type_sequence) + return NULL; + return caa_container_of(type, const struct lttng_ust_type_sequence, parent); +} + +static inline +const struct lttng_ust_type_struct *lttng_ust_get_type_struct(const struct lttng_ust_type_common *type) +{ + if (type->type != lttng_ust_type_struct) + return NULL; + return caa_container_of(type, const struct lttng_ust_type_struct, parent); +} + +#define lttng_ust_static_type_integer(_size, _alignment, _signedness, _byte_order, _base) \ + ((const struct lttng_ust_type_common *) __LTTNG_COMPOUND_LITERAL(const struct lttng_ust_type_integer, { \ + .parent = { \ + .type = lttng_ust_type_integer, \ + }, \ + .struct_size = sizeof(struct lttng_ust_type_integer), \ + .size = (_size), \ + .alignment = (_alignment), \ + .signedness = (_signedness), \ + .reverse_byte_order = (_byte_order) != BYTE_ORDER, \ + .base = (_base), \ + })) + +#define lttng_ust_static_type_array_text(_length) \ + ((const struct lttng_ust_type_common *) __LTTNG_COMPOUND_LITERAL(const struct lttng_ust_type_array, { \ + .parent = { \ + .type = lttng_ust_type_array, \ + }, \ + .struct_size = sizeof(struct lttng_ust_type_array), \ + .length = (_length), \ + .alignment = 0, \ + .encoding = lttng_ust_string_encoding_UTF8, \ + .elem_type = lttng_ust_static_type_integer(sizeof(char) * CHAR_BIT, \ + lttng_ust_rb_alignof(char) * CHAR_BIT, lttng_ust_is_signed_type(char), \ + BYTE_ORDER, 10), \ + })) + +#define lttng_ust_static_event_field(_name, _type, _nowrite, _nofilter) \ + __LTTNG_COMPOUND_LITERAL(const struct lttng_ust_event_field, { \ + .struct_size = sizeof(struct lttng_ust_event_field), \ + .name = (_name), \ + .type = (_type), \ + .nowrite = (_nowrite), \ + .nofilter = (_nofilter), \ + }) + +#define lttng_ust_static_ctx_field(_event_field, _get_size, _record, _get_value, _destroy, _priv) \ + __LTTNG_COMPOUND_LITERAL(const struct lttng_ust_ctx_field, { \ + .event_field = (_event_field), \ + .get_size = (_get_size), \ + .record = (_record), \ + .get_value = (_get_value), \ + .destroy = (_destroy), \ + .priv = (_priv), \ + }) + static inline struct lttng_enabler *lttng_event_enabler_as_enabler( struct lttng_event_enabler *event_enabler) @@ -239,57 +571,57 @@ struct lttng_enabler *lttng_event_notifier_enabler_as_enabler( * On success, returns a `struct lttng_event_enabler`, * On memory error, returns NULL. */ -LTTNG_HIDDEN struct lttng_event_enabler *lttng_event_enabler_create( enum lttng_enabler_format_type format_type, - struct lttng_ust_event *event_param, - struct lttng_channel *chan); + struct lttng_ust_abi_event *event_param, + struct lttng_ust_channel_buffer *chan) + __attribute__((visibility("hidden"))); /* * Destroy a `struct lttng_event_enabler` object. */ -LTTNG_HIDDEN -void lttng_event_enabler_destroy(struct lttng_event_enabler *enabler); +void lttng_event_enabler_destroy(struct lttng_event_enabler *enabler) + __attribute__((visibility("hidden"))); /* * Enable a `struct lttng_event_enabler` object and all events related to this * enabler. */ -LTTNG_HIDDEN -int lttng_event_enabler_enable(struct lttng_event_enabler *enabler); +int lttng_event_enabler_enable(struct lttng_event_enabler *enabler) + __attribute__((visibility("hidden"))); /* * Disable a `struct lttng_event_enabler` object and all events related to this * enabler. */ -LTTNG_HIDDEN -int lttng_event_enabler_disable(struct lttng_event_enabler *enabler); +int lttng_event_enabler_disable(struct lttng_event_enabler *enabler) + __attribute__((visibility("hidden"))); /* * Attach filter bytecode program to `struct lttng_event_enabler` and all * events related to this enabler. */ -LTTNG_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) + __attribute__((visibility("hidden"))); /* * Attach an application context to an event enabler. * * Not implemented. */ -LTTNG_HIDDEN int lttng_event_enabler_attach_context(struct lttng_event_enabler *enabler, - struct lttng_ust_context *ctx); + struct lttng_ust_abi_context *ctx) + __attribute__((visibility("hidden"))); /* * Attach exclusion list to `struct lttng_event_enabler` and all * events related to this enabler. */ -LTTNG_HIDDEN int lttng_event_enabler_attach_exclusion(struct lttng_event_enabler *enabler, - struct lttng_ust_excluder_node **excluder); + struct lttng_ust_excluder_node **excluder) + __attribute__((visibility("hidden"))); /* * Synchronize bytecodes for the enabler and the instance (event or @@ -298,11 +630,11 @@ int lttng_event_enabler_attach_exclusion(struct lttng_event_enabler *enabler, * 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, +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); + struct cds_list_head *enabler_bytecode_runtime_head) + __attribute__((visibility("hidden"))); /* * Allocate and initialize a `struct lttng_event_notifier_group` object. @@ -310,15 +642,15 @@ 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 -struct lttng_event_notifier_group *lttng_event_notifier_group_create(void); +struct lttng_event_notifier_group *lttng_event_notifier_group_create(void) + __attribute__((visibility("hidden"))); /* * Destroy a `struct lttng_event_notifier_group` object. */ -LTTNG_HIDDEN void lttng_event_notifier_group_destroy( - struct lttng_event_notifier_group *event_notifier_group); + struct lttng_event_notifier_group *event_notifier_group) + __attribute__((visibility("hidden"))); /* * Allocate and initialize a `struct lttng_event_notifier_enabler` object. @@ -326,100 +658,98 @@ void lttng_event_notifier_group_destroy( * On success, returns a `struct lttng_event_notifier_enabler`, * On memory error, returns NULL. */ -LTTNG_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) + __attribute__((visibility("hidden"))); /* * Destroy a `struct lttng_event_notifier_enabler` object. */ -LTTNG_HIDDEN void lttng_event_notifier_enabler_destroy( - struct lttng_event_notifier_enabler *event_notifier_enabler); + struct lttng_event_notifier_enabler *event_notifier_enabler) + __attribute__((visibility("hidden"))); /* * Enable a `struct lttng_event_notifier_enabler` object and all event * notifiers related to this enabler. */ -LTTNG_HIDDEN int lttng_event_notifier_enabler_enable( - struct lttng_event_notifier_enabler *event_notifier_enabler); + struct lttng_event_notifier_enabler *event_notifier_enabler) + __attribute__((visibility("hidden"))); /* * Disable a `struct lttng_event_notifier_enabler` object and all event * notifiers related to this enabler. */ -LTTNG_HIDDEN int lttng_event_notifier_enabler_disable( - struct lttng_event_notifier_enabler *event_notifier_enabler); + struct lttng_event_notifier_enabler *event_notifier_enabler) + __attribute__((visibility("hidden"))); /* * Attach filter bytecode program to `struct lttng_event_notifier_enabler` and * all event notifiers related to this enabler. */ -LTTNG_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) + __attribute__((visibility("hidden"))); /* * Attach capture bytecode program to `struct lttng_event_notifier_enabler` and * all event_notifiers related to this enabler. */ -LTTNG_HIDDEN int lttng_event_notifier_enabler_attach_capture_bytecode( struct lttng_event_notifier_enabler *event_notifier_enabler, - struct lttng_ust_bytecode_node **bytecode); + struct lttng_ust_bytecode_node **bytecode) + __attribute__((visibility("hidden"))); /* * Attach exclusion list to `struct lttng_event_notifier_enabler` and all * event notifiers related to this enabler. */ -LTTNG_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) + __attribute__((visibility("hidden"))); -LTTNG_HIDDEN -void lttng_free_event_recorder_filter_runtime(struct lttng_ust_event_recorder *event_recorder); - -LTTNG_HIDDEN -void lttng_free_event_notifier_filter_runtime( - struct lttng_event_notifier *event_notifier); +void lttng_free_event_filter_runtime(struct lttng_ust_event_common *event) + __attribute__((visibility("hidden"))); /* * Connect the probe on all enablers matching this event description. * Called on library load. */ -LTTNG_HIDDEN -int lttng_fix_pending_event_notifiers(void); +int lttng_fix_pending_event_notifiers(void) + __attribute__((visibility("hidden"))); -LTTNG_HIDDEN struct lttng_counter *lttng_ust_counter_create( const char *counter_transport_name, - size_t number_dimensions, const struct lttng_counter_dimension *dimensions); + size_t number_dimensions, const struct lttng_counter_dimension *dimensions) + __attribute__((visibility("hidden"))); -#ifdef HAVE_PERF_EVENT +#ifdef HAVE_LINUX_PERF_EVENT_H -LTTNG_HIDDEN int lttng_add_perf_counter_to_ctx(uint32_t type, uint64_t config, const char *name, - struct lttng_ctx **ctx); -LTTNG_HIDDEN -int lttng_perf_counter_init(void); -LTTNG_HIDDEN -void lttng_perf_counter_exit(void); + struct lttng_ust_ctx **ctx) + __attribute__((visibility("hidden"))); + +int lttng_perf_counter_init(void) + __attribute__((visibility("hidden"))); -#else /* #ifdef HAVE_PERF_EVENT */ +void lttng_perf_counter_exit(void) + __attribute__((visibility("hidden"))); + +#else /* #ifdef HAVE_LINUX_PERF_EVENT_H */ static inline int lttng_add_perf_counter_to_ctx(uint32_t type, uint64_t config, const char *name, - struct lttng_ctx **ctx) + struct lttng_ust_ctx **ctx) { return -ENOSYS; } @@ -432,74 +762,144 @@ static inline void lttng_perf_counter_exit(void) { } -#endif /* #else #ifdef HAVE_PERF_EVENT */ - -LTTNG_HIDDEN -int lttng_probes_get_event_list(struct lttng_ust_tracepoint_list *list); -LTTNG_HIDDEN -void lttng_probes_prune_event_list(struct lttng_ust_tracepoint_list *list); - -LTTNG_HIDDEN -int lttng_probes_get_field_list(struct lttng_ust_field_list *list); -LTTNG_HIDDEN -void lttng_probes_prune_field_list(struct lttng_ust_field_list *list); - -LTTNG_HIDDEN -struct lttng_ust_tracepoint_iter * - lttng_ust_tracepoint_list_get_iter_next(struct lttng_ust_tracepoint_list *list); -LTTNG_HIDDEN -struct lttng_ust_field_iter * - lttng_ust_field_list_get_iter_next(struct lttng_ust_field_list *list); - -LTTNG_HIDDEN -struct lttng_session *lttng_session_create(void); -LTTNG_HIDDEN -int lttng_session_enable(struct lttng_session *session); -LTTNG_HIDDEN -int lttng_session_disable(struct lttng_session *session); -LTTNG_HIDDEN -int lttng_session_statedump(struct lttng_session *session); -LTTNG_HIDDEN -void lttng_session_destroy(struct lttng_session *session); - -LTTNG_HIDDEN -struct cds_list_head *lttng_get_sessions(void); - -LTTNG_HIDDEN -void lttng_handle_pending_statedump(void *owner); - -LTTNG_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); - -LTTNG_HIDDEN -int lttng_channel_enable(struct lttng_channel *channel); -LTTNG_HIDDEN -int lttng_channel_disable(struct lttng_channel *channel); - -LTTNG_HIDDEN -void lttng_transport_register(struct lttng_transport *transport); -LTTNG_HIDDEN -void lttng_transport_unregister(struct lttng_transport *transport); - -LTTNG_HIDDEN -void lttng_probe_provider_unregister_events(struct lttng_probe_desc *desc); - -LTTNG_HIDDEN -int lttng_fix_pending_events(void); - -LTTNG_HIDDEN -struct cds_list_head *lttng_get_probe_list_head(void); - -LTTNG_HIDDEN -struct lttng_enum *lttng_ust_enum_get_from_desc(struct lttng_session *session, - const struct lttng_enum_desc *enum_desc); +#endif /* #else #ifdef HAVE_LINUX_PERF_EVENT_H */ + +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_ust_session *lttng_session_create(void) + __attribute__((visibility("hidden"))); + +int lttng_session_enable(struct lttng_ust_session *session) + __attribute__((visibility("hidden"))); + +int lttng_session_disable(struct lttng_ust_session *session) + __attribute__((visibility("hidden"))); + +int lttng_session_statedump(struct lttng_ust_session *session) + __attribute__((visibility("hidden"))); + +void lttng_session_destroy(struct lttng_ust_session *session) + __attribute__((visibility("hidden"))); + +/* + * Called with ust lock held. + */ +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"))); + +int lttng_channel_enable(struct lttng_ust_channel_common *lttng_channel) + __attribute__((visibility("hidden"))); + +int lttng_channel_disable(struct lttng_ust_channel_common *lttng_channel) + __attribute__((visibility("hidden"))); + +void lttng_transport_register(struct lttng_transport *transport) + __attribute__((visibility("hidden"))); + +void lttng_transport_unregister(struct lttng_transport *transport) + __attribute__((visibility("hidden"))); + +/* 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); + +void lttng_probe_provider_unregister_events(const 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_ust_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) + __attribute__((visibility("hidden"))); + +struct lttng_ust_channel_buffer *lttng_ust_alloc_channel_buffer(void) + __attribute__((visibility("hidden"))); + +void lttng_ust_free_channel_common(struct lttng_ust_channel_common *chan) + __attribute__((visibility("hidden"))); + +int lttng_ust_interpret_event_filter(struct lttng_ust_event_common *event, + const char *interpreter_stack_data, + void *filter_ctx) + __attribute__((visibility("hidden"))); + +int lttng_ust_session_uuid_validate(struct lttng_ust_session *session, + unsigned char *uuid) + __attribute__((visibility("hidden"))); + +bool lttng_ust_validate_event_name(const struct lttng_ust_event_desc *desc) + __attribute__((visibility("hidden"))); + +void lttng_ust_format_event_name(const struct lttng_ust_event_desc *desc, + char *name) + __attribute__((visibility("hidden"))); + +int lttng_ust_add_app_context_to_ctx_rcu(const char *name, struct lttng_ust_ctx **ctx) + __attribute__((visibility("hidden"))); + +int lttng_ust_context_set_provider_rcu(struct lttng_ust_ctx **_ctx, + const char *name, + size_t (*get_size)(void *priv, size_t offset), + void (*record)(void *priv, struct lttng_ust_lib_ring_buffer_ctx *ctx, + struct lttng_ust_channel_buffer *chan), + void (*get_value)(void *priv, struct lttng_ust_ctx_value *value), + void *priv) + __attribute__((visibility("hidden"))); + +void lttng_ust_context_set_session_provider(const char *name, + size_t (*get_size)(void *priv, size_t offset), + void (*record)(void *priv, struct lttng_ust_lib_ring_buffer_ctx *ctx, + struct lttng_ust_channel_buffer *chan), + void (*get_value)(void *priv, struct lttng_ust_ctx_value *value), + void *priv) + __attribute__((visibility("hidden"))); #endif /* _LTTNG_UST_EVENTS_INTERNAL_H */