X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;ds=sidebyside;f=include%2Flttng%2Fust-events.h;h=c2a7dd8f603c5e8f11a7130878289b5fb231b7ce;hb=f69fe5fb0a2b0c581f0562bdd04ab2a003d239f9;hp=0e80c28285ffba4eff50f11b413768fb6e827a5a;hpb=bd640d74f149ce079f81103221a8aaafca02ce04;p=lttng-ust.git diff --git a/include/lttng/ust-events.h b/include/lttng/ust-events.h index 0e80c282..c2a7dd8f 100644 --- a/include/lttng/ust-events.h +++ b/include/lttng/ust-events.h @@ -41,10 +41,9 @@ extern "C" { #define LTTNG_UST_PROVIDER_MINOR 0 struct lttng_channel; -struct lttng_session; +struct lttng_ust_session; struct lttng_ust_lib_ring_buffer_ctx; -struct lttng_event_field; -struct lttng_event_notifier; +struct lttng_ust_event_field; struct lttng_event_notifier_group; /* @@ -57,13 +56,9 @@ struct lttng_event_notifier_group; /* Update the astract_types name table in lttng-types.c along with this enum */ enum lttng_abstract_types { atype_integer, - atype_enum, /* legacy */ - atype_array, /* legacy */ - atype_sequence, /* legacy */ atype_string, atype_float, atype_dynamic, - atype_struct, /* legacy */ atype_enum_nestable, atype_array_nestable, atype_sequence_nestable, @@ -88,31 +83,39 @@ enum lttng_enum_entry_options { LTTNG_ENUM_ENTRY_OPTION_IS_AUTO = 1U << 0, }; -#define LTTNG_UST_ENUM_ENTRY_PADDING 16 -struct lttng_enum_entry { +/* + * Enumeration entry description + * + * IMPORTANT: this structure is part of the ABI between the probe and + * UST. Fields need to be only added at the end, never reordered, never + * removed. + * + * The field @struct_size should be used to determine the size of the + * structure. It should be queried before using additional fields added + * at the end of the structure. + */ + +struct lttng_ust_enum_entry { + uint32_t struct_size; + struct lttng_enum_value start, end; /* start and end are inclusive */ const char *string; - union { - struct { - unsigned int options; - } LTTNG_PACKED extra; - char padding[LTTNG_UST_ENUM_ENTRY_PADDING]; - } u; + unsigned int options; + + /* End of base ABI. Fields below should be used after checking struct_size. */ }; -#define __type_integer(_type, _byte_order, _base, _encoding) \ - { \ - .atype = atype_integer, \ - .u = \ - { \ - .integer = \ - { \ - .size = sizeof(_type) * CHAR_BIT, \ - .alignment = lttng_alignof(_type) * CHAR_BIT, \ - .signedness = lttng_is_signed_type(_type), \ - .reverse_byte_order = _byte_order != BYTE_ORDER, \ - .base = _base, \ - .encoding = lttng_encode_##_encoding, \ +#define __type_integer(_type, _byte_order, _base, _encoding) \ + { \ + .atype = atype_integer, \ + .u = { \ + .integer = { \ + .size = sizeof(_type) * CHAR_BIT, \ + .alignment = lttng_alignof(_type) * CHAR_BIT, \ + .signedness = lttng_is_signed_type(_type), \ + .reverse_byte_order = _byte_order != BYTE_ORDER, \ + .base = _base, \ + .encoding = lttng_encode_##_encoding, \ } \ }, \ } \ @@ -137,21 +140,19 @@ struct lttng_integer_type { : (sizeof(_type) == sizeof(double) ? DBL_MANT_DIG \ : 0)) -#define __type_float(_type) \ - { \ - .atype = atype_float, \ - .u = \ - { \ - ._float = \ - { \ - .exp_dig = sizeof(_type) * CHAR_BIT \ - - _float_mant_dig(_type), \ - .mant_dig = _float_mant_dig(_type), \ - .alignment = lttng_alignof(_type) * CHAR_BIT, \ - .reverse_byte_order = BYTE_ORDER != FLOAT_WORD_ORDER, \ - } \ - } \ - } \ +#define __type_float(_type) \ + { \ + .atype = atype_float, \ + .u = { \ + ._float = { \ + .exp_dig = sizeof(_type) * CHAR_BIT \ + - _float_mant_dig(_type), \ + .mant_dig = _float_mant_dig(_type), \ + .alignment = lttng_alignof(_type) * CHAR_BIT, \ + .reverse_byte_order = BYTE_ORDER != FLOAT_WORD_ORDER, \ + } \ + } \ + } \ #define LTTNG_UST_FLOAT_TYPE_PADDING 24 struct lttng_float_type { @@ -162,29 +163,6 @@ struct lttng_float_type { char padding[LTTNG_UST_FLOAT_TYPE_PADDING]; }; -/* legacy */ -#define LTTNG_UST_BASIC_TYPE_PADDING 128 -union _lttng_basic_type { - struct lttng_integer_type integer; /* legacy */ - struct { - const struct lttng_enum_desc *desc; /* Enumeration mapping */ - struct lttng_integer_type container_type; - } enumeration; /* legacy */ - struct { - enum lttng_string_encodings encoding; - } string; /* legacy */ - struct lttng_float_type _float; /* legacy */ - char padding[LTTNG_UST_BASIC_TYPE_PADDING]; -}; - -/* legacy */ -struct lttng_basic_type { - enum lttng_abstract_types atype; - union { - union _lttng_basic_type basic; - } u; -}; - #define LTTNG_UST_TYPE_PADDING 128 struct lttng_type { enum lttng_abstract_types atype; @@ -196,7 +174,7 @@ struct lttng_type { enum lttng_string_encodings encoding; } string; struct { - const struct lttng_enum_desc *desc; /* Enumeration mapping */ + const struct lttng_ust_enum_desc *desc; /* Enumeration mapping */ struct lttng_type *container_type; } enum_nestable; struct { @@ -211,36 +189,34 @@ struct lttng_type { } sequence_nestable; struct { unsigned int nr_fields; - const struct lttng_event_field *fields; /* Array of fields. */ + const struct lttng_ust_event_field **fields; /* Array of pointers to fields. */ unsigned int alignment; } struct_nestable; - union { - /* legacy provider ABI 1.0 */ - union _lttng_basic_type basic; /* legacy */ - struct { - struct lttng_basic_type elem_type; - unsigned int length; /* Num. elems. */ - } array; /* legacy */ - struct { - struct lttng_basic_type length_type; - struct lttng_basic_type elem_type; - } sequence; /* legacy */ - struct { - unsigned int nr_fields; - struct lttng_event_field *fields; /* Array of fields. */ - } _struct; /* legacy */ - } legacy; char padding[LTTNG_UST_TYPE_PADDING]; } u; }; -#define LTTNG_UST_ENUM_TYPE_PADDING 24 -struct lttng_enum_desc { +/* + * Enumeration description + * + * IMPORTANT: this structure is part of the ABI between the probe and + * UST. Fields need to be only added at the end, never reordered, never + * removed. + * + * The field @struct_size should be used to determine the size of the + * structure. It should be queried before using additional fields added + * at the end of the structure. + */ + +struct lttng_ust_enum_desc { + uint32_t struct_size; + const char *name; - const struct lttng_enum_entry *entries; + const struct lttng_ust_enum_entry **entries; unsigned int nr_entries; - char padding[LTTNG_UST_ENUM_TYPE_PADDING]; + + /* End of base ABI. Fields below should be used after checking struct_size. */ }; /* @@ -249,104 +225,70 @@ struct lttng_enum_desc { * IMPORTANT: this structure is part of the ABI between the probe and * UST. Fields need to be only added at the end, never reordered, never * removed. + * + * The field @struct_size should be used to determine the size of the + * structure. It should be queried before using additional fields added + * at the end of the structure. */ -#define LTTNG_UST_EVENT_FIELD_PADDING 28 -struct lttng_event_field { +struct lttng_ust_event_field { + uint32_t struct_size; + const char *name; struct lttng_type type; - unsigned int nowrite; /* do not write into trace */ - union { - struct { - unsigned int nofilter:1; /* do not consider for filter */ - } ext; - char padding[LTTNG_UST_EVENT_FIELD_PADDING]; - } u; -}; + unsigned int nowrite:1, /* do not write into trace */ + nofilter:1; /* do not consider for filter */ -enum lttng_ust_dynamic_type { - LTTNG_UST_DYNAMIC_TYPE_NONE, - LTTNG_UST_DYNAMIC_TYPE_S8, - LTTNG_UST_DYNAMIC_TYPE_S16, - LTTNG_UST_DYNAMIC_TYPE_S32, - LTTNG_UST_DYNAMIC_TYPE_S64, - LTTNG_UST_DYNAMIC_TYPE_U8, - LTTNG_UST_DYNAMIC_TYPE_U16, - LTTNG_UST_DYNAMIC_TYPE_U32, - LTTNG_UST_DYNAMIC_TYPE_U64, - LTTNG_UST_DYNAMIC_TYPE_FLOAT, - LTTNG_UST_DYNAMIC_TYPE_DOUBLE, - LTTNG_UST_DYNAMIC_TYPE_STRING, - _NR_LTTNG_UST_DYNAMIC_TYPES, + /* End of base ABI. Fields below should be used after checking struct_size. */ }; -struct lttng_ctx_value { - enum lttng_ust_dynamic_type sel; - union { - int64_t s64; - uint64_t u64; - const char *str; - double d; - } u; -}; - -struct lttng_perf_counter_field; - -#define LTTNG_UST_CTX_FIELD_PADDING 40 -struct lttng_ctx_field { - struct lttng_event_field event_field; - size_t (*get_size)(struct lttng_ctx_field *field, size_t offset); - void (*record)(struct lttng_ctx_field *field, - struct lttng_ust_lib_ring_buffer_ctx *ctx, - struct lttng_channel *chan); - void (*get_value)(struct lttng_ctx_field *field, - struct lttng_ctx_value *value); - union { - struct lttng_perf_counter_field *perf_counter; - char padding[LTTNG_UST_CTX_FIELD_PADDING]; - } u; - void (*destroy)(struct lttng_ctx_field *field); - char *field_name; /* Has ownership, dynamically allocated. */ -}; -#define LTTNG_UST_CTX_PADDING 20 -struct lttng_ctx { - struct lttng_ctx_field *fields; - unsigned int nr_fields; - unsigned int allocated_fields; - unsigned int largest_align; - char padding[LTTNG_UST_CTX_PADDING]; -}; +/* + * IMPORTANT: this structure is part of the ABI between the probe and + * UST. Fields need to be only added at the end, never reordered, never + * removed. + * + * The field @struct_size should be used to determine the size of the + * structure. It should be queried before using additional fields added + * at the end of the structure. + */ +struct lttng_ust_event_desc { + uint32_t struct_size; /* Size of this structure. */ -#define LTTNG_UST_EVENT_DESC_PADDING 40 -struct lttng_event_desc { const char *name; void (*probe_callback)(void); const struct lttng_event_ctx *ctx; /* context */ - const struct lttng_event_field *fields; /* event payload */ + const struct lttng_ust_event_field **fields; /* event payload */ unsigned int nr_fields; const int **loglevel; - const char *signature; /* Argument types/names received */ - union { - struct { - const char **model_emf_uri; - void (*event_notifier_callback)(void); - } ext; - char padding[LTTNG_UST_EVENT_DESC_PADDING]; - } u; + const char *signature; /* Argument types/names received */ + const char **model_emf_uri; + + /* End of base ABI. Fields below should be used after checking struct_size. */ }; -#define LTTNG_UST_PROBE_DESC_PADDING 12 -struct lttng_probe_desc { +/* + * IMPORTANT: this structure is part of the ABI between the probe and + * UST. Fields need to be only added at the end, never reordered, never + * removed. + * + * The field @struct_size should be used to determine the size of the + * structure. It should be queried before using additional fields added + * at the end of the structure. + */ +struct lttng_ust_probe_desc { + uint32_t struct_size; /* Size of this structure. */ + const char *provider; - const struct lttng_event_desc **event_desc; + const struct lttng_ust_event_desc **event_desc; unsigned int nr_events; struct cds_list_head head; /* chain registered probes */ struct cds_list_head lazy_init_head; int lazy; /* lazy registration */ uint32_t major; uint32_t minor; - char padding[LTTNG_UST_PROBE_DESC_PADDING]; + + /* End of base ABI. Fields below should be used after checking struct_size. */ }; /* Data structures used by the tracer. */ @@ -364,14 +306,18 @@ struct lttng_interpreter_output; struct lttng_ust_bytecode_runtime_private; /* - * This structure is used in the probes. More specifically, the - * `interpreter_funcs` and `node` fields are explicity used in the - * probes. When modifying this structure we must not change the layout - * of these two fields as it is considered ABI. + * IMPORTANT: this structure is part of the ABI between the probe and + * UST. Fields need to be only added at the end, never reordered, never + * removed. + * + * The field @struct_size should be used to determine the size of the + * structure. It should be queried before using additional fields added + * at the end of the structure. */ -struct lttng_bytecode_runtime { - struct lttng_ust_bytecode_runtime_private *priv; +struct lttng_ust_bytecode_runtime { + uint32_t struct_size; /* Size of this structure. */ + struct lttng_ust_bytecode_runtime_private *priv; /* Associated bytecode */ union { uint64_t (*filter)(void *interpreter_data, @@ -381,6 +327,8 @@ struct lttng_bytecode_runtime { struct lttng_interpreter_output *interpreter_output); } interpreter_funcs; struct cds_list_head node; /* list of bytecode runtime in event */ + + /* End of base ABI. Fields below should be used after checking struct_size. */ }; /* @@ -392,56 +340,118 @@ struct lttng_bytecode_runtime { * removed. */ -struct lttng_ust_event_private; +struct lttng_ust_ctx; +struct lttng_ust_event_common_private; -struct lttng_event { - uint32_t struct_size; /* Size of this structure. */ - struct lttng_ust_event_private *priv; /* Private event interface */ +enum lttng_ust_event_type { + LTTNG_UST_EVENT_TYPE_RECORDER = 0, + LTTNG_UST_EVENT_TYPE_NOTIFIER = 1, +}; + +/* + * IMPORTANT: this structure is part of the ABI between the probe and + * UST. Fields need to be only added at the end, never reordered, never + * removed. + * + * struct lttng_ust_event_common is the common ancestor of the various + * public event actions. Inheritance is done by composition: The parent + * has a pointer to its child, and the child has a pointer to its + * parent. Inheritance of those public structures is done by composition + * to ensure both parent and child structures can be extended. + * + * The field @struct_size should be used to determine the size of the + * structure. It should be queried before using additional fields added + * at the end of the structure. + */ +struct lttng_ust_event_common { + uint32_t struct_size; /* Size of this structure. */ + + struct lttng_ust_event_common_private *priv; /* Private event interface */ + + enum lttng_ust_event_type type; + void *child; /* Pointer to child, for inheritance by aggregation. */ - unsigned int id; int enabled; int has_enablers_without_bytecode; - /* list of struct lttng_bytecode_runtime, sorted by seqnum */ + /* list of struct lttng_ust_bytecode_runtime, sorted by seqnum */ struct cds_list_head filter_bytecode_runtime_head; + + /* End of base ABI. Fields below should be used after checking struct_size. */ +}; + +struct lttng_ust_event_recorder_private; + +/* + * IMPORTANT: this structure is part of the ABI between the probe and + * UST. Fields need to be only added at the end, never reordered, never + * removed. + * + * struct lttng_ust_event_recorder is the action for recording events + * into a ring buffer. It inherits from struct lttng_ust_event_common + * by composition to ensure both parent and child structure are + * extensible. + * + * The field @struct_size should be used to determine the size of the + * structure. It should be queried before using additional fields added + * at the end of the structure. + */ +struct lttng_ust_event_recorder { + uint32_t struct_size; /* Size of this structure. */ + + struct lttng_ust_event_common *parent; /* Inheritance by aggregation. */ + struct lttng_ust_event_recorder_private *priv; /* Private event record interface */ + + unsigned int id; struct lttng_channel *chan; - struct lttng_ctx *ctx; + struct lttng_ust_ctx *ctx; + + /* End of base ABI. Fields below should be used after checking struct_size. */ }; -struct lttng_event_notifier { - uint64_t user_token; - uint64_t error_counter_index; - int enabled; - int registered; /* has reg'd tracepoint probe */ - size_t num_captures; /* Needed to allocate the msgpack array. */ - void (*notification_send)(struct lttng_event_notifier *event_notifier, +struct lttng_ust_event_notifier_private; + +/* + * IMPORTANT: this structure is part of the ABI between the probe and + * UST. Fields need to be only added at the end, never reordered, never + * removed. + * + * struct lttng_ust_event_notifier is the action for sending + * notifications. It inherits from struct lttng_ust_event_common + * by composition to ensure both parent and child structure are + * extensible. + * + * The field @struct_size should be used to determine the size of the + * structure. It should be queried before using additional fields added + * at the end of the structure. + */ +struct lttng_ust_event_notifier { + uint32_t struct_size; /* Size of this structure. */ + + struct lttng_ust_event_common *parent; /* Inheritance by aggregation. */ + struct lttng_ust_event_notifier_private *priv; /* Private event notifier interface */ + + void (*notification_send)(struct lttng_ust_event_notifier *event_notifier, const char *stack_data); - struct cds_list_head filter_bytecode_runtime_head; struct cds_list_head capture_bytecode_runtime_head; - int has_enablers_without_bytecode; - struct cds_list_head enablers_ref_head; - const struct lttng_event_desc *desc; - struct cds_hlist_node hlist; /* hashtable of event_notifiers */ - struct cds_list_head node; /* event_notifier list in session */ - struct lttng_event_notifier_group *group; /* weak ref */ -}; -struct lttng_enum { - const struct lttng_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 */ + /* End of base ABI. Fields below should be used after checking struct_size. */ }; -struct channel; +struct lttng_ust_lib_ring_buffer_channel; struct lttng_ust_shm_handle; /* * IMPORTANT: this structure is part of the ABI between the probe and * UST. Fields need to be only added at the end, never reordered, never * removed. + * + * The field @struct_size should be used to determine the size of the + * structure. It should be queried before using additional fields added + * at the end of the structure. */ -struct lttng_channel_ops { +struct lttng_ust_channel_ops { + uint32_t struct_size; + struct lttng_channel *(*channel_create)(const char *name, void *buf_addr, size_t subbuf_size, size_t num_subbuf, @@ -462,13 +472,16 @@ struct lttng_channel_ops { * packet. Note that the size returned is only a hint, since it * may change due to concurrent writes. */ - size_t (*packet_avail_size)(struct channel *chan, + size_t (*packet_avail_size)(struct lttng_ust_lib_ring_buffer_channel *chan, struct lttng_ust_shm_handle *handle); - int (*is_finalized)(struct channel *chan); - int (*is_disabled)(struct channel *chan); - int (*flush_buffer)(struct channel *chan, struct lttng_ust_shm_handle *handle); + int (*is_finalized)(struct lttng_ust_lib_ring_buffer_channel *chan); + int (*is_disabled)(struct lttng_ust_lib_ring_buffer_channel *chan); + int (*flush_buffer)(struct lttng_ust_lib_ring_buffer_channel *chan, + struct lttng_ust_shm_handle *handle); void (*event_strcpy)(struct lttng_ust_lib_ring_buffer_ctx *ctx, const char *src, size_t len); + + /* End of base ABI. Fields below should be used after checking struct_size. */ }; /* @@ -483,72 +496,41 @@ struct lttng_channel { * consumer process is designed to be allowed to do is to read * and perform subbuffer flush. */ - struct channel *chan; /* Channel buffers */ + struct lttng_ust_lib_ring_buffer_channel *chan; /* Channel buffers */ int enabled; - struct lttng_ctx *ctx; + struct lttng_ust_ctx *ctx; /* Event ID management */ - struct lttng_session *session; + struct lttng_ust_session *session; int objd; /* Object associated to channel */ struct cds_list_head node; /* Channel list in session */ - const struct lttng_channel_ops *ops; + const struct lttng_ust_channel_ops *ops; int header_type; /* 0: unset, 1: compact, 2: large */ struct lttng_ust_shm_handle *handle; /* shared-memory handle */ /* Channel ID */ unsigned int id; - enum lttng_ust_chan_type type; + enum lttng_ust_abi_chan_type type; unsigned char uuid[LTTNG_UST_UUID_LEN]; /* Trace session unique ID */ int tstate:1; /* Transient enable state */ }; -struct lttng_counter_dimension; - -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); -}; - -#define LTTNG_UST_STACK_CTX_PADDING 32 -struct lttng_stack_ctx { - struct lttng_event *event; - struct lttng_ctx *chan_ctx; /* RCU dereferenced. */ - struct lttng_ctx *event_ctx; /* RCU dereferenced. */ - char padding[LTTNG_UST_STACK_CTX_PADDING]; -}; - -#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]; -}; +/* + * IMPORTANT: this structure is part of the ABI between the probe and + * UST. Fields need to be only added at the end, never reordered, never + * removed. + * + * The field @struct_size should be used to determine the size of the + * structure. It should be queried before using additional fields added + * at the end of the structure. + */ +struct lttng_ust_stack_ctx { + uint32_t struct_size; /* Size of this structure */ -#define LTTNG_UST_ENUM_HT_BITS 12 -#define LTTNG_UST_ENUM_HT_SIZE (1U << LTTNG_UST_ENUM_HT_BITS) + struct lttng_ust_event_recorder *event_recorder; + struct lttng_ust_ctx *chan_ctx; /* RCU dereferenced. */ + struct lttng_ust_ctx *event_ctx; /* RCU dereferenced. */ -struct lttng_ust_enum_ht { - struct cds_hlist_head table[LTTNG_UST_ENUM_HT_SIZE]; + /* End of base ABI. Fields below should be used after checking struct_size. */ }; struct lttng_ust_session_private; @@ -557,27 +539,31 @@ struct lttng_ust_session_private; * IMPORTANT: this structure is part of the ABI between the probe and * UST. Fields need to be only added at the end, never reordered, never * removed. + * + * The field @struct_size should be used to determine the size of the + * structure. It should be queried before using additional fields added + * at the end of the structure. */ -struct lttng_session { +struct lttng_ust_session { uint32_t struct_size; /* Size of this structure */ + struct lttng_ust_session_private *priv; /* Private session interface */ int active; /* Is trace session active ? */ + + /* End of base ABI. Fields below should be used after checking struct_size. */ }; -int lttng_probe_register(struct lttng_probe_desc *desc); -void lttng_probe_unregister(struct lttng_probe_desc *desc); +int lttng_ust_probe_register(struct lttng_ust_probe_desc *desc); +void lttng_ust_probe_unregister(struct lttng_ust_probe_desc *desc); /* - * Can be used by applications that change their procname to clear the ust cached value. + * Applications that change their procname and need the new value to be + * reflected in the procname event context have to call this function to clear + * the internally cached value. This should not be called from a signal + * handler. */ -void lttng_context_procname_reset(void); - -struct lttng_transport *lttng_transport_find(const char *name); - -int lttng_session_active(void); - -void lttng_ust_dl_update(void *ip); +void lttng_ust_context_procname_reset(void); #ifdef __cplusplus }