X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=include%2Flttng%2Fevents-internal.h;h=1108cf273ce342b7ec4d74658304d768b2e5f238;hb=f7d06400be7d046205c20277a03f3f31bf5b1703;hp=084be4c1e0f80871e35478668d34f85a4d2e800c;hpb=a44f47ddfa0b2a35f89d22d33dec1363845ec387;p=lttng-modules.git diff --git a/include/lttng/events-internal.h b/include/lttng/events-internal.h index 084be4c1..1108cf27 100644 --- a/include/lttng/events-internal.h +++ b/include/lttng/events-internal.h @@ -10,11 +10,22 @@ #include +struct lttng_syscall_filter; +struct lttng_metadata_cache; +struct perf_event; +struct perf_event_attr; +struct lib_ring_buffer_config; + enum lttng_enabler_format_type { LTTNG_ENABLER_FORMAT_STAR_GLOB, LTTNG_ENABLER_FORMAT_NAME, }; +enum channel_type { + PER_CPU_CHANNEL, + METADATA_CHANNEL, +}; + /* * Objects in a linked-list of enablers, owned by an event. */ @@ -106,6 +117,44 @@ struct lttng_kernel_event_notifier_private { }; +struct lttng_kernel_channel_common_private { + struct lttng_kernel_channel_common *pub; + + struct file *file; /* File associated to channel */ + unsigned int sys_enter_registered:1, + sys_exit_registered:1, + tstate:1; /* Transient enable state */ + + struct hlist_head *sc_table; /* for syscall tracing */ + struct hlist_head *compat_sc_table; + struct hlist_head *sc_exit_table; /* for syscall exit tracing */ + struct hlist_head *compat_sc_exit_table; + struct hlist_head sc_unknown; /* for unknown syscalls */ + struct hlist_head sc_compat_unknown; + struct hlist_head sc_exit_unknown; + struct hlist_head compat_sc_exit_unknown; + struct lttng_syscall_filter *sc_filter; + int syscall_all_entry; + int syscall_all_exit; +}; + +struct lttng_kernel_channel_buffer_private { + struct lttng_kernel_channel_common_private parent; + + struct lttng_kernel_channel_buffer *pub; + + unsigned int id; /* Channel ID */ + unsigned int free_event_id; /* Next event ID to allocate */ + int header_type; /* 0: unset, 1: compact, 2: large */ + + enum channel_type channel_type; + struct lttng_kernel_ctx *ctx; + struct channel *rb_chan; /* Ring buffer channel */ + unsigned int metadata_dumped:1; + struct list_head node; /* Channel list in session */ + struct lttng_transport *transport; +}; + enum lttng_kernel_bytecode_interpreter_ret { LTTNG_KERNEL_BYTECODE_INTERPRETER_ERROR = -1, LTTNG_KERNEL_BYTECODE_INTERPRETER_OK = 0, @@ -171,7 +220,7 @@ struct lttng_enabler { struct lttng_event_enabler { struct lttng_enabler base; struct list_head node; /* per-session list of enablers */ - struct lttng_channel *chan; + struct lttng_kernel_channel_buffer *chan; }; struct lttng_event_notifier_enabler { @@ -217,7 +266,7 @@ struct lttng_kernel_ctx_field { size_t offset); void (*record)(void *priv, struct lttng_kernel_probe_ctx *probe_ctx, struct lttng_kernel_ring_buffer_ctx *ctx, - struct lttng_channel *chan); + struct lttng_kernel_channel_buffer *chan); void (*get_value)(void *priv, struct lttng_kernel_probe_ctx *probe_ctx, struct lttng_ctx_value *value); void (*destroy)(void *priv); @@ -338,6 +387,13 @@ struct lttng_counter { struct lttng_counter_ops *ops; }; +#define LTTNG_EVENT_NOTIFIER_HT_BITS 12 +#define LTTNG_EVENT_NOTIFIER_HT_SIZE (1U << LTTNG_EVENT_NOTIFIER_HT_BITS) + +struct lttng_event_notifier_ht { + struct hlist_head table[LTTNG_EVENT_NOTIFIER_HT_SIZE]; +}; + struct lttng_event_notifier_group { struct file *file; /* File associated to event notifier group */ struct file *notif_file; /* File used to expose notifications to userspace. */ @@ -389,6 +445,57 @@ struct lttng_counter_transport { struct lttng_counter_ops ops; }; +#define LTTNG_EVENT_HT_BITS 12 +#define LTTNG_EVENT_HT_SIZE (1U << LTTNG_EVENT_HT_BITS) + +struct lttng_event_ht { + struct hlist_head table[LTTNG_EVENT_HT_SIZE]; +}; + +struct lttng_kernel_session_private { + struct lttng_kernel_session *pub; /* Public session interface */ + + int been_active; /* Has trace session been active ? */ + struct file *file; /* File associated to session */ + struct list_head chan; /* Channel list head */ + struct list_head events; /* Event list head */ + struct list_head list; /* Session list */ + unsigned int free_chan_id; /* Next chan ID to allocate */ + uuid_le uuid; /* Trace session unique ID */ + struct lttng_metadata_cache *metadata_cache; + unsigned int metadata_dumped:1, + tstate:1; /* Transient enable state */ + /* List of event enablers */ + struct list_head enablers_head; + /* Hash table of events */ + struct lttng_event_ht events_ht; + char name[LTTNG_KERNEL_ABI_SESSION_NAME_LEN]; + char creation_time[LTTNG_KERNEL_ABI_SESSION_CREATION_TIME_ISO8601_LEN]; +}; + +struct lttng_id_hash_node { + struct hlist_node hlist; + int id; +}; + +enum tracker_type { + TRACKER_PID, + TRACKER_VPID, + TRACKER_UID, + TRACKER_VUID, + TRACKER_GID, + TRACKER_VGID, + + TRACKER_UNKNOWN, +}; + +struct lttng_kernel_id_tracker_private { + struct lttng_kernel_id_tracker *pub; /* Public interface */ + + struct lttng_kernel_session *session; + enum tracker_type tracker_type; +}; + extern struct lttng_kernel_ctx *lttng_static_ctx; static inline @@ -665,7 +772,7 @@ int lttng_cpuhp_perf_counter_dead(unsigned int cpu, struct lttng_event_enabler *lttng_event_enabler_create( enum lttng_enabler_format_type format_type, struct lttng_kernel_abi_event *event_param, - struct lttng_channel *chan); + struct lttng_kernel_channel_buffer *chan); int lttng_event_enabler_enable(struct lttng_event_enabler *event_enabler); int lttng_event_enabler_disable(struct lttng_event_enabler *event_enabler); @@ -698,16 +805,16 @@ void lttng_enabler_link_bytecode(const struct lttng_kernel_event_desc *event_des #if defined(CONFIG_HAVE_SYSCALL_TRACEPOINTS) int lttng_syscalls_register_event(struct lttng_event_enabler *event_enabler); -int lttng_syscalls_unregister_channel(struct lttng_channel *chan); -int lttng_syscalls_destroy_event(struct lttng_channel *chan); +int lttng_syscalls_unregister_channel(struct lttng_kernel_channel_buffer *chan); +int lttng_syscalls_destroy_event(struct lttng_kernel_channel_buffer *chan); int lttng_syscall_filter_enable_event( - struct lttng_channel *chan, + struct lttng_kernel_channel_buffer *chan, struct lttng_kernel_event_recorder *event); int lttng_syscall_filter_disable_event( - struct lttng_channel *chan, + struct lttng_kernel_channel_buffer *chan, struct lttng_kernel_event_recorder *event); -long lttng_channel_syscall_mask(struct lttng_channel *channel, +long lttng_channel_syscall_mask(struct lttng_kernel_channel_buffer *channel, struct lttng_kernel_abi_syscall_mask __user *usyscall_mask); int lttng_syscalls_register_event_notifier( @@ -724,29 +831,29 @@ static inline int lttng_syscalls_register_event( return -ENOSYS; } -static inline int lttng_syscalls_unregister_channel(struct lttng_channel *chan) +static inline int lttng_syscalls_unregister_channel(struct lttng_kernel_channel_buffer *chan) { return 0; } -static inline int lttng_syscalls_destroy(struct lttng_channel *chan) +static inline int lttng_syscalls_destroy(struct lttng_kernel_channel_buffer *chan) { return 0; } -static inline int lttng_syscall_filter_enable_event(struct lttng_channel *chan, +static inline int lttng_syscall_filter_enable_event(struct lttng_kernel_channel_buffer *chan, struct lttng_kernel_event_recorder *event); { return -ENOSYS; } -static inline int lttng_syscall_filter_disable_event(struct lttng_channel *chan, +static inline int lttng_syscall_filter_disable_event(struct lttng_kernel_channel_buffer *chan, struct lttng_kernel_event_recorder *event); { return -ENOSYS; } -static inline long lttng_channel_syscall_mask(struct lttng_channel *channel, +static inline long lttng_channel_syscall_mask(struct lttng_kernel_channel_buffer *channel, struct lttng_kernel_syscall_mask __user *usyscall_mask) { return -ENOSYS; @@ -943,12 +1050,12 @@ int lttng_fix_pending_event_notifiers(void); int lttng_session_active(void); bool lttng_event_notifier_active(void); -struct lttng_session *lttng_session_create(void); -int lttng_session_enable(struct lttng_session *session); -int lttng_session_disable(struct lttng_session *session); -void lttng_session_destroy(struct lttng_session *session); -int lttng_session_metadata_regenerate(struct lttng_session *session); -int lttng_session_statedump(struct lttng_session *session); +struct lttng_kernel_session *lttng_session_create(void); +int lttng_session_enable(struct lttng_kernel_session *session); +int lttng_session_disable(struct lttng_kernel_session *session); +void lttng_session_destroy(struct lttng_kernel_session *session); +int lttng_session_metadata_regenerate(struct lttng_kernel_session *session); +int lttng_session_statedump(struct lttng_kernel_session *session); void metadata_cache_destroy(struct kref *kref); struct lttng_counter *lttng_kernel_counter_create( @@ -969,29 +1076,29 @@ int lttng_event_notifier_group_create_error_counter( void lttng_event_notifier_group_destroy( struct lttng_event_notifier_group *event_notifier_group); -struct lttng_channel *lttng_channel_create(struct lttng_session *session, +struct lttng_kernel_channel_buffer *lttng_channel_create(struct lttng_kernel_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, enum channel_type channel_type); -struct lttng_channel *lttng_global_channel_create(struct lttng_session *session, +struct lttng_kernel_channel_buffer *lttng_global_channel_create(struct lttng_kernel_session *session, int overwrite, void *buf_addr, size_t subbuf_size, size_t num_subbuf, unsigned int switch_timer_interval, unsigned int read_timer_interval); -void lttng_metadata_channel_destroy(struct lttng_channel *chan); -struct lttng_kernel_event_recorder *lttng_kernel_event_recorder_create(struct lttng_channel *chan, +void lttng_metadata_channel_destroy(struct lttng_kernel_channel_buffer *chan); +struct lttng_kernel_event_recorder *lttng_kernel_event_recorder_create(struct lttng_kernel_channel_buffer *chan, struct lttng_kernel_abi_event *event_param, const struct lttng_kernel_event_desc *event_desc, enum lttng_kernel_abi_instrumentation itype); -struct lttng_kernel_event_recorder *_lttng_kernel_event_recorder_create(struct lttng_channel *chan, +struct lttng_kernel_event_recorder *_lttng_kernel_event_recorder_create(struct lttng_kernel_channel_buffer *chan, struct lttng_kernel_abi_event *event_param, const struct lttng_kernel_event_desc *event_desc, enum lttng_kernel_abi_instrumentation itype); -struct lttng_kernel_event_recorder *lttng_event_compat_old_create(struct lttng_channel *chan, +struct lttng_kernel_event_recorder *lttng_event_compat_old_create(struct lttng_kernel_channel_buffer *chan, struct lttng_kernel_abi_old_event *old_event_param, const struct lttng_kernel_event_desc *internal_desc); @@ -1010,8 +1117,8 @@ struct lttng_kernel_event_notifier *_lttng_event_notifier_create( struct lttng_kernel_abi_event_notifier *event_notifier_param, enum lttng_kernel_abi_instrumentation itype); -int lttng_channel_enable(struct lttng_channel *channel); -int lttng_channel_disable(struct lttng_channel *channel); +int lttng_channel_enable(struct lttng_kernel_channel_buffer *channel); +int lttng_channel_disable(struct lttng_kernel_channel_buffer *channel); int lttng_event_enable(struct lttng_kernel_event_common *event); int lttng_event_disable(struct lttng_kernel_event_common *event); @@ -1036,17 +1143,21 @@ int lttng_metadata_output_channel(struct lttng_metadata_stream *stream, struct channel *chan, bool *coherent); int lttng_id_tracker_get_node_id(const struct lttng_id_hash_node *node); -int lttng_id_tracker_empty_set(struct lttng_id_tracker *lf); -void lttng_id_tracker_destroy(struct lttng_id_tracker *lf, bool rcu); -int lttng_id_tracker_add(struct lttng_id_tracker *lf, int id); -int lttng_id_tracker_del(struct lttng_id_tracker *lf, int id); - -int lttng_session_track_id(struct lttng_session *session, +int lttng_id_tracker_empty_set(struct lttng_kernel_id_tracker *lf); +int lttng_id_tracker_init(struct lttng_kernel_id_tracker *lf, + struct lttng_kernel_session *session, + enum tracker_type type); +void lttng_id_tracker_fini(struct lttng_kernel_id_tracker *lf); +void lttng_id_tracker_destroy(struct lttng_kernel_id_tracker *lf, bool rcu); +int lttng_id_tracker_add(struct lttng_kernel_id_tracker *lf, int id); +int lttng_id_tracker_del(struct lttng_kernel_id_tracker *lf, int id); + +int lttng_session_track_id(struct lttng_kernel_session *session, enum tracker_type tracker_type, int id); -int lttng_session_untrack_id(struct lttng_session *session, +int lttng_session_untrack_id(struct lttng_kernel_session *session, enum tracker_type tracker_type, int id); -int lttng_session_list_tracker_ids(struct lttng_session *session, +int lttng_session_list_tracker_ids(struct lttng_kernel_session *session, enum tracker_type tracker_type); void lttng_clock_ref(void); @@ -1059,7 +1170,7 @@ int lttng_probes_init(void); int lttng_logger_init(void); void lttng_logger_exit(void); -extern int lttng_statedump_start(struct lttng_session *session); +extern int lttng_statedump_start(struct lttng_kernel_session *session); int lttng_calibrate(struct lttng_kernel_abi_calibrate *calibrate);