X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=include%2Flttng%2Fevents-internal.h;h=463bc03b1d9fd5f790414abb81d406146e2031fa;hb=4071a6283f2291a5894dc6b46608721fc6a56239;hp=869ea70d050a6f41fac612af18a6cc09aa57995d;hpb=a2fa977a83704ebb579b8a0f31ed14c10b3c3e4d;p=lttng-modules.git diff --git a/include/lttng/events-internal.h b/include/lttng/events-internal.h index 869ea70d..463bc03b 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 lttng_kernel_ring_buffer_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); @@ -259,26 +308,26 @@ struct lttng_metadata_stream { struct lttng_kernel_channel_buffer_ops_private { struct lttng_kernel_channel_buffer_ops *pub; /* Public channel buffer ops interface */ - struct channel *(*channel_create)(const char *name, + struct lttng_kernel_ring_buffer_channel *(*channel_create)(const char *name, void *priv, void *buf_addr, size_t subbuf_size, size_t num_subbuf, unsigned int switch_timer_interval, unsigned int read_timer_interval); - void (*channel_destroy)(struct channel *chan); - struct lib_ring_buffer *(*buffer_read_open)(struct channel *chan); - int (*buffer_has_read_closed_stream)(struct channel *chan); + void (*channel_destroy)(struct lttng_kernel_ring_buffer_channel *chan); + struct lib_ring_buffer *(*buffer_read_open)(struct lttng_kernel_ring_buffer_channel *chan); + int (*buffer_has_read_closed_stream)(struct lttng_kernel_ring_buffer_channel *chan); void (*buffer_read_close)(struct lib_ring_buffer *buf); /* * 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 channel *chan); - wait_queue_head_t *(*get_writer_buf_wait_queue)(struct channel *chan, int cpu); - wait_queue_head_t *(*get_hp_wait_queue)(struct channel *chan); - int (*is_finalized)(struct channel *chan); - int (*is_disabled)(struct channel *chan); + size_t (*packet_avail_size)(struct lttng_kernel_ring_buffer_channel *chan); + wait_queue_head_t *(*get_writer_buf_wait_queue)(struct lttng_kernel_ring_buffer_channel *chan, int cpu); + wait_queue_head_t *(*get_hp_wait_queue)(struct lttng_kernel_ring_buffer_channel *chan); + int (*is_finalized)(struct lttng_kernel_ring_buffer_channel *chan); + int (*is_disabled)(struct lttng_kernel_ring_buffer_channel *chan); int (*timestamp_begin) (const struct lib_ring_buffer_config *config, struct lib_ring_buffer *bufb, uint64_t *timestamp_begin); @@ -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. */ @@ -347,7 +403,7 @@ struct lttng_event_notifier_group { struct lttng_event_notifier_ht event_notifiers_ht; /* Hash table of event notifiers */ struct lttng_kernel_channel_buffer_ops *ops; struct lttng_transport *transport; - struct channel *chan; /* Ring buffer channel for event notifier group. */ + struct lttng_kernel_ring_buffer_channel *chan; /* Ring buffer channel for event notifier group. */ struct lib_ring_buffer *buf; /* Ring buffer for event notifier group. */ wait_queue_head_t read_wait; struct irq_work wakeup_pending; /* Pending wakeup irq work. */ @@ -389,6 +445,13 @@ 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 */ @@ -709,7 +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); @@ -742,16 +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( @@ -768,29 +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; @@ -1013,29 +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_kernel_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_kernel_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); @@ -1054,8 +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); @@ -1077,7 +1140,7 @@ int lttng_probes_init(void); void lttng_probes_exit(void); int lttng_metadata_output_channel(struct lttng_metadata_stream *stream, - struct channel *chan, bool *coherent); + struct lttng_kernel_ring_buffer_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_kernel_id_tracker *lf);