struct lttng_channel;
struct lttng_session;
struct lttng_metadata_cache;
-struct lib_ring_buffer_ctx;
+struct lttng_kernel_ring_buffer_ctx;
struct perf_event;
struct perf_event_attr;
struct lib_ring_buffer_config;
_fields \
)
-#define lttng_kernel_static_ctx_field(_event_field, _get_size, _record, _get_value, _destroy, _priv) \
- __LTTNG_COMPOUND_LITERAL(const struct lttng_kernel_ctx_field, { \
- .event_field = (_event_field), \
- .get_size = (_get_size), \
- .record = (_record), \
- .get_value = (_get_value), \
- .destroy = (_destroy), \
- .priv = (_priv), \
- })
-
#define lttng_kernel_static_enum_entry_value(_string, _value) \
__LTTNG_COMPOUND_LITERAL(const struct lttng_kernel_enum_entry, { \
.start = { \
} \
}),
-struct lttng_ctx_value {
- union {
- int64_t s64;
- const char *str;
- double d;
- } u;
-};
-
-/*
- * We need to keep this perf counter field separately from struct
- * lttng_kernel_ctx_field because cpu hotplug needs fixed-location addresses.
- */
-struct lttng_perf_counter_field {
-#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,10,0))
- struct lttng_cpuhp_node cpuhp_prepare;
- struct lttng_cpuhp_node cpuhp_online;
-#else
- struct notifier_block nb;
- int hp_enable;
-#endif
- struct perf_event_attr *attr;
- struct perf_event **e; /* per-cpu array */
- char *name;
- struct lttng_kernel_event_field *event_field;
-};
-
-struct lttng_probe_ctx {
+struct lttng_kernel_probe_ctx {
struct lttng_kernel_event_common *event;
uint8_t interruptible;
};
-struct lttng_kernel_ctx_field {
- const struct lttng_kernel_event_field *event_field;
- size_t (*get_size)(void *priv, struct lttng_probe_ctx *probe_ctx,
- size_t offset);
- void (*record)(void *priv, struct lttng_probe_ctx *probe_ctx,
- struct lib_ring_buffer_ctx *ctx,
- struct lttng_channel *chan);
- void (*get_value)(void *priv, struct lttng_probe_ctx *probe_ctx,
- struct lttng_ctx_value *value);
- void (*destroy)(void *priv);
- void *priv;
-};
-
-struct lttng_kernel_ctx {
- struct lttng_kernel_ctx_field *fields;
- unsigned int nr_fields;
- unsigned int allocated_fields;
- size_t largest_align; /* in bytes */
-};
-
struct lttng_kernel_event_desc {
const char *event_name; /* lttng-modules name */
const char *event_kname; /* Linux kernel name (tracepoints) */
int lazy; /* lazy registration */
};
-struct lttng_krp; /* Kretprobe handling */
-
-enum lttng_kernel_bytecode_type {
- LTTNG_KERNEL_BYTECODE_TYPE_FILTER,
- LTTNG_KERNEL_BYTECODE_TYPE_CAPTURE,
-};
-
-struct lttng_bytecode_node {
- enum lttng_kernel_bytecode_type type;
- struct list_head node;
- struct lttng_enabler *enabler;
- struct {
- uint32_t len;
- uint32_t reloc_offset;
- uint64_t seqnum;
- char data[];
- } bc;
-};
-
-struct lttng_interpreter_output;
-
-struct lttng_bytecode_runtime {
- /* Associated bytecode */
- enum lttng_kernel_bytecode_type type;
- struct lttng_bytecode_node *bc;
- int (*interpreter_func)(struct lttng_bytecode_runtime *kernel_bytecode,
- const char *interpreter_stack_data,
- struct lttng_probe_ctx *lttng_probe_ctx,
- void *caller_ctx);
- int link_failed;
- struct list_head node; /* list of bytecode runtime in event */
- struct lttng_kernel_ctx *ctx;
-};
-
-/*
- * Objects in a linked-list of enablers, owned by an event.
- */
-struct lttng_enabler_ref {
- struct list_head node; /* enabler ref list */
- struct lttng_enabler *ref; /* backward ref */
-};
-
-struct lttng_uprobe_handler {
- struct lttng_kernel_event_common *event;
- loff_t offset;
- struct uprobe_consumer up_consumer;
- struct list_head node;
-};
-
-struct lttng_kprobe {
- struct kprobe kp;
- char *symbol_name;
-};
-
-struct lttng_uprobe {
- struct inode *inode;
- struct list_head head;
-};
-
-enum lttng_syscall_entryexit {
- LTTNG_SYSCALL_ENTRY,
- LTTNG_SYSCALL_EXIT,
-};
-
-enum lttng_syscall_abi {
- LTTNG_SYSCALL_ABI_NATIVE,
- LTTNG_SYSCALL_ABI_COMPAT,
-};
-
/*
* Result of the run_filter() callback.
*/
int eval_filter; /* Need to evaluate filters */
int (*run_filter)(const struct lttng_kernel_event_common *event,
const char *stack_data,
- struct lttng_probe_ctx *probe_ctx,
+ struct lttng_kernel_probe_ctx *probe_ctx,
void *filter_ctx);
};
int eval_capture; /* Need to evaluate capture */
void (*notification_send)(struct lttng_kernel_event_notifier *event_notifier,
const char *stack_data,
- struct lttng_probe_ctx *probe_ctx,
+ struct lttng_kernel_probe_ctx *probe_ctx,
struct lttng_kernel_notification_ctx *notif_ctx);
};
-enum lttng_enabler_format_type {
- LTTNG_ENABLER_FORMAT_STAR_GLOB,
- LTTNG_ENABLER_FORMAT_NAME,
-};
+struct lttng_kernel_channel_buffer_ops {
+ struct lttng_kernel_channel_buffer_ops_private *priv; /* Private channel buffer ops interface. */
-struct lttng_channel_ops {
- struct 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 (*buffer_read_close)(struct lib_ring_buffer *buf);
- int (*event_reserve)(struct lib_ring_buffer_ctx *ctx);
- void (*event_commit)(struct lib_ring_buffer_ctx *ctx);
- void (*event_write)(struct lib_ring_buffer_ctx *ctx, const void *src,
+ int (*event_reserve)(struct lttng_kernel_ring_buffer_ctx *ctx);
+ void (*event_commit)(struct lttng_kernel_ring_buffer_ctx *ctx);
+ void (*event_write)(struct lttng_kernel_ring_buffer_ctx *ctx, const void *src,
size_t len);
- void (*event_write_from_user)(struct lib_ring_buffer_ctx *ctx,
+ void (*event_write_from_user)(struct lttng_kernel_ring_buffer_ctx *ctx,
const void *src, size_t len);
- void (*event_memset)(struct lib_ring_buffer_ctx *ctx,
+ void (*event_memset)(struct lttng_kernel_ring_buffer_ctx *ctx,
int c, size_t len);
- void (*event_strcpy)(struct lib_ring_buffer_ctx *ctx, const char *src,
+ void (*event_strcpy)(struct lttng_kernel_ring_buffer_ctx *ctx, const char *src,
size_t len);
- void (*event_strcpy_from_user)(struct lib_ring_buffer_ctx *ctx,
+ void (*event_strcpy_from_user)(struct lttng_kernel_ring_buffer_ctx *ctx,
const char __user *src, size_t len);
- /*
- * 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);
- int (*timestamp_begin) (const struct lib_ring_buffer_config *config,
- struct lib_ring_buffer *bufb,
- uint64_t *timestamp_begin);
- int (*timestamp_end) (const struct lib_ring_buffer_config *config,
- struct lib_ring_buffer *bufb,
- uint64_t *timestamp_end);
- int (*events_discarded) (const struct lib_ring_buffer_config *config,
- struct lib_ring_buffer *bufb,
- uint64_t *events_discarded);
- int (*content_size) (const struct lib_ring_buffer_config *config,
- struct lib_ring_buffer *bufb,
- uint64_t *content_size);
- int (*packet_size) (const struct lib_ring_buffer_config *config,
- struct lib_ring_buffer *bufb,
- uint64_t *packet_size);
- int (*stream_id) (const struct lib_ring_buffer_config *config,
- struct lib_ring_buffer *bufb,
- uint64_t *stream_id);
- int (*current_timestamp) (const struct lib_ring_buffer_config *config,
- struct lib_ring_buffer *bufb,
- uint64_t *ts);
- int (*sequence_number) (const struct lib_ring_buffer_config *config,
- struct lib_ring_buffer *bufb,
- uint64_t *seq);
- int (*instance_id) (const struct lib_ring_buffer_config *config,
- struct lib_ring_buffer *bufb,
- uint64_t *id);
};
struct lttng_counter_ops {
char *name;
struct module *owner;
struct list_head node;
- struct lttng_channel_ops ops;
+ struct lttng_kernel_channel_buffer_ops ops;
};
struct lttng_counter_transport {
struct file *file; /* File associated to channel */
unsigned int free_event_id; /* Next event ID to allocate */
struct list_head list; /* Channel list */
- struct lttng_channel_ops *ops;
+ struct lttng_kernel_channel_buffer_ops *ops;
struct lttng_transport *transport;
struct hlist_head *sc_table; /* for syscall tracing */
struct hlist_head *compat_sc_table;
struct list_head enablers_head; /* List of enablers */
struct list_head event_notifiers_head; /* List of event notifier */
struct lttng_event_notifier_ht event_notifiers_ht; /* Hash table of event notifiers */
- struct lttng_channel_ops *ops;
+ struct lttng_kernel_channel_buffer_ops *ops;
struct lttng_transport *transport;
struct channel *chan; /* Ring buffer channel for event notifier group. */
struct lib_ring_buffer *buf; /* Ring buffer for event notifier group. */
size_t error_counter_len;
};
-struct lttng_metadata_cache {
- char *data; /* Metadata cache */
- unsigned int cache_alloc; /* Metadata allocated size (bytes) */
- unsigned int metadata_written; /* Number of bytes written in metadata cache */
- atomic_t producing; /* Metadata being produced (incomplete) */
- struct kref refcount; /* Metadata cache usage */
- struct list_head metadata_stream; /* Metadata stream list */
- uuid_le uuid; /* Trace session unique ID (copy) */
- struct mutex lock; /* Produce/consume lock */
- uint64_t version; /* Current version of the metadata */
-};
+int lttng_kernel_probe_register(struct lttng_kernel_probe_desc *desc);
+void lttng_kernel_probe_unregister(struct lttng_kernel_probe_desc *desc);
-void lttng_lock_sessions(void);
-void lttng_unlock_sessions(void);
-
-struct list_head *lttng_get_probe_list_head(void);
-
-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);
-
-int lttng_event_enabler_enable(struct lttng_event_enabler *event_enabler);
-int lttng_event_enabler_disable(struct lttng_event_enabler *event_enabler);
-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_kernel_abi_event_notifier *event_notifier_param);
-
-int lttng_event_notifier_enabler_enable(
- struct lttng_event_notifier_enabler *event_notifier_enabler);
-int lttng_event_notifier_enabler_disable(
- struct lttng_event_notifier_enabler *event_notifier_enabler);
-int lttng_fix_pending_events(void);
-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);
-void metadata_cache_destroy(struct kref *kref);
-
-struct lttng_counter *lttng_kernel_counter_create(
- const char *counter_transport_name, size_t number_dimensions,
- const size_t *dimensions_sizes);
-int lttng_kernel_counter_read(struct lttng_counter *counter,
- const size_t *dimension_indexes, int32_t cpu,
- int64_t *val, bool *overflow, bool *underflow);
-int lttng_kernel_counter_aggregate(struct lttng_counter *counter,
- const size_t *dimension_indexes, int64_t *val,
- bool *overflow, bool *underflow);
-int lttng_kernel_counter_clear(struct lttng_counter *counter,
- const size_t *dimension_indexes);
-
-
-struct lttng_event_notifier_group *lttng_event_notifier_group_create(void);
-int lttng_event_notifier_group_create_error_counter(
- struct file *event_notifier_group_file,
- const struct lttng_kernel_abi_counter_conf *error_counter_conf);
-void lttng_event_notifier_group_destroy(
- struct lttng_event_notifier_group *event_notifier_group);
-
-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,
- enum channel_type channel_type);
-struct lttng_channel *lttng_global_channel_create(struct lttng_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,
- 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_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_abi_old_event *old_event_param,
- const struct lttng_kernel_event_desc *internal_desc);
-
-struct lttng_kernel_event_notifier *lttng_event_notifier_create(
- const struct lttng_kernel_event_desc *event_notifier_desc,
- uint64_t id,
- uint64_t error_counter_idx,
- struct lttng_event_notifier_group *event_notifier_group,
- struct lttng_kernel_abi_event_notifier *event_notifier_param,
- enum lttng_kernel_abi_instrumentation itype);
-struct lttng_kernel_event_notifier *_lttng_event_notifier_create(
- const struct lttng_kernel_event_desc *event_notifier_desc,
- uint64_t id,
- uint64_t error_counter_idx,
- struct lttng_event_notifier_group *event_notifier_group,
- 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_event_enable(struct lttng_kernel_event_common *event);
-int lttng_event_disable(struct lttng_kernel_event_common *event);
-
-void lttng_transport_register(struct lttng_transport *transport);
-void lttng_transport_unregister(struct lttng_transport *transport);
-
-void lttng_counter_transport_register(struct lttng_counter_transport *transport);
-void lttng_counter_transport_unregister(struct lttng_counter_transport *transport);
-
-void synchronize_trace(void);
-int lttng_abi_init(void);
-int lttng_abi_compat_old_init(void);
-void lttng_abi_exit(void);
-void lttng_abi_compat_old_exit(void);
-
-int lttng_probe_register(struct lttng_kernel_probe_desc *desc);
-void lttng_probe_unregister(struct lttng_kernel_probe_desc *desc);
-const struct lttng_kernel_event_desc *lttng_event_desc_get(const char *name);
-void lttng_event_desc_put(const struct lttng_kernel_event_desc *desc);
-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);
-
-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);
bool lttng_id_tracker_lookup(struct lttng_id_tracker_rcu *p, int id);
-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,
- enum tracker_type tracker_type, int id);
-int lttng_session_untrack_id(struct lttng_session *session,
- enum tracker_type tracker_type, int id);
-
-int lttng_session_list_tracker_ids(struct lttng_session *session,
- enum tracker_type tracker_type);
-
-void lttng_clock_ref(void);
-void lttng_clock_unref(void);
-
-int lttng_desc_match_enabler(const struct lttng_kernel_event_desc *desc,
- struct lttng_enabler *enabler);
-
-#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_syscall_filter_enable_event(
- struct lttng_channel *chan,
- struct lttng_kernel_event_recorder *event);
-int lttng_syscall_filter_disable_event(
- struct lttng_channel *chan,
- struct lttng_kernel_event_recorder *event);
-
-long lttng_channel_syscall_mask(struct lttng_channel *channel,
- struct lttng_kernel_abi_syscall_mask __user *usyscall_mask);
-
-int lttng_syscalls_register_event_notifier(
- struct lttng_event_notifier_enabler *event_notifier_enabler);
-int lttng_syscalls_create_matching_event_notifiers(
- struct lttng_event_notifier_enabler *event_notifier_enabler);
-int lttng_syscalls_unregister_event_notifier_group(struct lttng_event_notifier_group *group);
-int lttng_syscall_filter_enable_event_notifier(struct lttng_kernel_event_notifier *event_notifier);
-int lttng_syscall_filter_disable_event_notifier(struct lttng_kernel_event_notifier *event_notifier);
-#else
-static inline int lttng_syscalls_register_event(
- struct lttng_event_enabler *event_enabler)
-{
- return -ENOSYS;
-}
-
-static inline int lttng_syscalls_unregister_channel(struct lttng_channel *chan)
-{
- return 0;
-}
-
-static inline int lttng_syscalls_destroy(struct lttng_channel *chan)
-{
- return 0;
-}
-
-static inline int lttng_syscall_filter_enable_event(struct lttng_channel *chan,
- struct lttng_kernel_event_recorder *event);
-{
- return -ENOSYS;
-}
-
-static inline int lttng_syscall_filter_disable_event(struct lttng_channel *chan,
- struct lttng_kernel_event_recorder *event);
-{
- return -ENOSYS;
-}
-
-static inline long lttng_channel_syscall_mask(struct lttng_channel *channel,
- struct lttng_kernel_syscall_mask __user *usyscall_mask)
-{
- return -ENOSYS;
-}
-
-static inline int lttng_syscalls_register_event_notifier(
- struct lttng_event_notifier_group *group)
-{
- return -ENOSYS;
-}
-
-static inline int lttng_syscalls_unregister_event_notifier_group(
- struct lttng_event_notifier_group *group)
-{
- return 0;
-}
-
-static inline int lttng_syscall_filter_enable_event_notifier(
- struct lttng_event_notifier_group *group,
- const char *name)
-{
- return -ENOSYS;
-}
-
-static inline int lttng_syscall_filter_disable_event_notifier(
- struct lttng_event_notifier_group *group,
- const char *name)
-{
- return -ENOSYS;
-}
-
-#endif
-
-int lttng_event_enabler_attach_filter_bytecode(struct lttng_event_enabler *event_enabler,
- struct lttng_kernel_abi_filter_bytecode __user *bytecode);
-int lttng_event_notifier_enabler_attach_filter_bytecode(
- struct lttng_event_notifier_enabler *event_notifier_enabler,
- struct lttng_kernel_abi_filter_bytecode __user *bytecode);
-int lttng_event_notifier_enabler_attach_capture_bytecode(
- struct lttng_event_notifier_enabler *event_notifier_enabler,
- struct lttng_kernel_abi_capture_bytecode __user *bytecode);
-
-void lttng_enabler_link_bytecode(const struct lttng_kernel_event_desc *event_desc,
- struct lttng_kernel_ctx *ctx,
- struct list_head *instance_bytecode_runtime_head,
- struct list_head *enabler_bytecode_runtime_head);
-void lttng_free_event_filter_runtime(struct lttng_kernel_event_common *event);
-
-int lttng_probes_init(void);
-
-extern struct lttng_kernel_ctx *lttng_static_ctx;
-
-int lttng_context_init(void);
-void lttng_context_exit(void);
-int lttng_kernel_context_append(struct lttng_kernel_ctx **ctx_p,
- const struct lttng_kernel_ctx_field *f);
-void lttng_kernel_context_remove_last(struct lttng_kernel_ctx **ctx_p);
-struct lttng_kernel_ctx_field *lttng_kernel_get_context_field_from_index(struct lttng_kernel_ctx *ctx,
- size_t index);
-int lttng_kernel_find_context(struct lttng_kernel_ctx *ctx, const char *name);
-int lttng_kernel_get_context_index(struct lttng_kernel_ctx *ctx, const char *name);
-void lttng_kernel_destroy_context(struct lttng_kernel_ctx *ctx);
-int lttng_add_pid_to_ctx(struct lttng_kernel_ctx **ctx);
-int lttng_add_cpu_id_to_ctx(struct lttng_kernel_ctx **ctx);
-int lttng_add_procname_to_ctx(struct lttng_kernel_ctx **ctx);
-int lttng_add_prio_to_ctx(struct lttng_kernel_ctx **ctx);
-int lttng_add_nice_to_ctx(struct lttng_kernel_ctx **ctx);
-int lttng_add_vpid_to_ctx(struct lttng_kernel_ctx **ctx);
-int lttng_add_tid_to_ctx(struct lttng_kernel_ctx **ctx);
-int lttng_add_vtid_to_ctx(struct lttng_kernel_ctx **ctx);
-int lttng_add_ppid_to_ctx(struct lttng_kernel_ctx **ctx);
-int lttng_add_vppid_to_ctx(struct lttng_kernel_ctx **ctx);
-int lttng_add_hostname_to_ctx(struct lttng_kernel_ctx **ctx);
-int lttng_add_interruptible_to_ctx(struct lttng_kernel_ctx **ctx);
-int lttng_add_need_reschedule_to_ctx(struct lttng_kernel_ctx **ctx);
-#if defined(CONFIG_PREEMPT_RT_FULL) || defined(CONFIG_PREEMPT)
-int lttng_add_preemptible_to_ctx(struct lttng_kernel_ctx **ctx);
-#else
-static inline
-int lttng_add_preemptible_to_ctx(struct lttng_kernel_ctx **ctx)
-{
- return -ENOSYS;
-}
-#endif
-#ifdef CONFIG_PREEMPT_RT_FULL
-int lttng_add_migratable_to_ctx(struct lttng_kernel_ctx **ctx);
-#else
-static inline
-int lttng_add_migratable_to_ctx(struct lttng_kernel_ctx **ctx)
-{
- return -ENOSYS;
-}
-#endif
-
-int lttng_add_callstack_to_ctx(struct lttng_kernel_ctx **ctx, int type);
-
-#if defined(CONFIG_CGROUPS) && \
- ((LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,6,0)) || \
- LTTNG_UBUNTU_KERNEL_RANGE(4,4,0,0, 4,5,0,0))
-int lttng_add_cgroup_ns_to_ctx(struct lttng_kernel_ctx **ctx);
-#else
-static inline
-int lttng_add_cgroup_ns_to_ctx(struct lttng_kernel_ctx **ctx)
-{
- return -ENOSYS;
-}
-#endif
-
-#if defined(CONFIG_IPC_NS) && \
- (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
-int lttng_add_ipc_ns_to_ctx(struct lttng_kernel_ctx **ctx);
-#else
-static inline
-int lttng_add_ipc_ns_to_ctx(struct lttng_kernel_ctx **ctx)
-{
- return -ENOSYS;
-}
-#endif
-
-#if !defined(LTTNG_MNT_NS_MISSING_HEADER) && \
- (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
-int lttng_add_mnt_ns_to_ctx(struct lttng_kernel_ctx **ctx);
-#else
-static inline
-int lttng_add_mnt_ns_to_ctx(struct lttng_kernel_ctx **ctx)
-{
- return -ENOSYS;
-}
-#endif
-
-#if defined(CONFIG_NET_NS) && \
- (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
-int lttng_add_net_ns_to_ctx(struct lttng_kernel_ctx **ctx);
-#else
-static inline
-int lttng_add_net_ns_to_ctx(struct lttng_kernel_ctx **ctx)
-{
- return -ENOSYS;
-}
-#endif
-
-#if defined(CONFIG_PID_NS) && \
- (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
-int lttng_add_pid_ns_to_ctx(struct lttng_kernel_ctx **ctx);
-#else
-static inline
-int lttng_add_pid_ns_to_ctx(struct lttng_kernel_ctx **ctx)
-{
- return -ENOSYS;
-}
-#endif
-
-#if defined(CONFIG_USER_NS) && \
- (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
-int lttng_add_user_ns_to_ctx(struct lttng_kernel_ctx **ctx);
-#else
-static inline
-int lttng_add_user_ns_to_ctx(struct lttng_kernel_ctx **ctx)
-{
- return -ENOSYS;
-}
-#endif
-
-#if defined(CONFIG_UTS_NS) && \
- (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
-int lttng_add_uts_ns_to_ctx(struct lttng_kernel_ctx **ctx);
-#else
-static inline
-int lttng_add_uts_ns_to_ctx(struct lttng_kernel_ctx **ctx)
-{
- return -ENOSYS;
-}
-#endif
-
-#if defined(CONFIG_TIME_NS) && \
- (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,6,0))
-int lttng_add_time_ns_to_ctx(struct lttng_kernel_ctx **ctx);
-#else
-static inline
-int lttng_add_time_ns_to_ctx(struct lttng_kernel_ctx **ctx)
-{
- return -ENOSYS;
-}
-#endif
-
-int lttng_add_uid_to_ctx(struct lttng_kernel_ctx **ctx);
-int lttng_add_euid_to_ctx(struct lttng_kernel_ctx **ctx);
-int lttng_add_suid_to_ctx(struct lttng_kernel_ctx **ctx);
-int lttng_add_gid_to_ctx(struct lttng_kernel_ctx **ctx);
-int lttng_add_egid_to_ctx(struct lttng_kernel_ctx **ctx);
-int lttng_add_sgid_to_ctx(struct lttng_kernel_ctx **ctx);
-int lttng_add_vuid_to_ctx(struct lttng_kernel_ctx **ctx);
-int lttng_add_veuid_to_ctx(struct lttng_kernel_ctx **ctx);
-int lttng_add_vsuid_to_ctx(struct lttng_kernel_ctx **ctx);
-int lttng_add_vgid_to_ctx(struct lttng_kernel_ctx **ctx);
-int lttng_add_vegid_to_ctx(struct lttng_kernel_ctx **ctx);
-int lttng_add_vsgid_to_ctx(struct lttng_kernel_ctx **ctx);
-
-#if defined(CONFIG_PERF_EVENTS)
-int lttng_add_perf_counter_to_ctx(uint32_t type,
- uint64_t config,
- const char *name,
- struct lttng_kernel_ctx **ctx);
-int lttng_cpuhp_perf_counter_online(unsigned int cpu,
- struct lttng_cpuhp_node *node);
-int lttng_cpuhp_perf_counter_dead(unsigned int cpu,
- struct lttng_cpuhp_node *node);
-#else
-static inline
-int lttng_add_perf_counter_to_ctx(uint32_t type,
- uint64_t config,
- const char *name,
- struct lttng_kernel_ctx **ctx)
-{
- return -ENOSYS;
-}
-static inline
-int lttng_cpuhp_perf_counter_online(unsigned int cpu,
- struct lttng_cpuhp_node *node)
-{
- return 0;
-}
-static inline
-int lttng_cpuhp_perf_counter_dead(unsigned int cpu,
- struct lttng_cpuhp_node *node)
-{
- return 0;
-}
-#endif
-
-int lttng_logger_init(void);
-void lttng_logger_exit(void);
-
-extern int lttng_statedump_start(struct lttng_session *session);
-
-#ifdef CONFIG_KPROBES
-int lttng_kprobes_register_event(const char *name,
- const char *symbol_name,
- uint64_t offset,
- uint64_t addr,
- struct lttng_kernel_event_recorder *event);
-void lttng_kprobes_unregister_event(struct lttng_kernel_event_recorder *event);
-void lttng_kprobes_destroy_event_private(struct lttng_kernel_event_recorder *event);
-int lttng_kprobes_register_event_notifier(const char *symbol_name,
- uint64_t offset,
- uint64_t addr,
- struct lttng_kernel_event_notifier *event_notifier);
-void lttng_kprobes_unregister_event_notifier(struct lttng_kernel_event_notifier *event_notifier);
-void lttng_kprobes_destroy_event_notifier_private(struct lttng_kernel_event_notifier *event_notifier);
-#else
-static inline
-int lttng_kprobes_register_event(const char *name,
- const char *symbol_name,
- uint64_t offset,
- uint64_t addr,
- struct lttng_kernel_event_recorder *event)
-{
- return -ENOSYS;
-}
-
-static inline
-void lttng_kprobes_unregister_event(struct lttng_kernel_event_recorder *event)
-{
-}
-
-static inline
-void lttng_kprobes_destroy_event_private(struct lttng_kernel_event_recorder *event)
-{
-}
-
-static inline
-int lttng_kprobes_register_event_notifier(const char *symbol_name,
- uint64_t offset,
- uint64_t addr,
- struct lttng_kernel_event_notifier *event_notifier)
-{
- return -ENOSYS;
-}
-
-static inline
-void lttng_kprobes_unregister_event_notifier(struct lttng_kernel_event_notifier *event_notifier)
-{
-}
-
-static inline
-void lttng_kprobes_destroy_event_notifier_private(struct lttng_kernel_event_notifier *event_notifier)
-{
-}
-#endif
-
-int lttng_event_add_callsite(struct lttng_kernel_event_common *event,
- struct lttng_kernel_abi_event_callsite __user *callsite);
-
-#ifdef CONFIG_UPROBES
-int lttng_uprobes_register_event(const char *name,
- int fd, struct lttng_kernel_event_recorder *event);
-int lttng_uprobes_event_add_callsite(struct lttng_kernel_event_common *event,
- struct lttng_kernel_abi_event_callsite __user *callsite);
-void lttng_uprobes_unregister_event(struct lttng_kernel_event_recorder *event);
-void lttng_uprobes_destroy_event_private(struct lttng_kernel_event_recorder *event);
-int lttng_uprobes_register_event_notifier(const char *name,
- int fd, struct lttng_kernel_event_notifier *event_notifier);
-void lttng_uprobes_unregister_event_notifier(struct lttng_kernel_event_notifier *event_notifier);
-void lttng_uprobes_destroy_event_notifier_private(struct lttng_kernel_event_notifier *event_notifier);
-#else
-static inline
-int lttng_uprobes_register_event(const char *name,
- int fd, struct lttng_kernel_event_recorder *event)
-{
- return -ENOSYS;
-}
-
-static inline
-int lttng_uprobes_event_add_callsite(struct lttng_kernel_event_common *event,
- struct lttng_kernel_abi_event_callsite __user *callsite)
-{
- return -ENOSYS;
-}
-
-static inline
-void lttng_uprobes_unregister_event(struct lttng_kernel_event_recorder *event)
-{
-}
-
-static inline
-void lttng_uprobes_destroy_event_private(struct lttng_kernel_event_recorder *event)
-{
-}
-
-static inline
-int lttng_uprobes_register_event_notifier(const char *name,
- int fd, struct lttng_kernel_event_notifier *event_notifier)
-{
- return -ENOSYS;
-}
-
-static inline
-void lttng_uprobes_unregister_event_notifier(struct lttng_kernel_event_notifier *event_notifier)
-{
-}
-
-static inline
-void lttng_uprobes_destroy_event_notifier_private(struct lttng_kernel_event_notifier *event_notifier)
-{
-}
-#endif
-
-#ifdef CONFIG_KRETPROBES
-int lttng_kretprobes_register(const char *name,
- const char *symbol_name,
- uint64_t offset,
- uint64_t addr,
- struct lttng_kernel_event_recorder *event_entry,
- struct lttng_kernel_event_recorder *event_exit);
-void lttng_kretprobes_unregister(struct lttng_kernel_event_recorder *event);
-void lttng_kretprobes_destroy_private(struct lttng_kernel_event_recorder *event);
-int lttng_kretprobes_event_enable_state(struct lttng_kernel_event_common *event,
- int enable);
-#else
-static inline
-int lttng_kretprobes_register(const char *name,
- const char *symbol_name,
- uint64_t offset,
- uint64_t addr,
- struct lttng_kernel_event_recorder *event_entry,
- struct lttng_kernel_event_recorder *event_exit)
-{
- return -ENOSYS;
-}
-
-static inline
-void lttng_kretprobes_unregister(struct lttng_kernel_event_recorder *event)
-{
-}
-
-static inline
-void lttng_kretprobes_destroy_private(struct lttng_kernel_event_recorder *event)
-{
-}
-
-static inline
-int lttng_kretprobes_event_enable_state(struct lttng_kernel_event_common *event,
- int enable)
-{
- return -ENOSYS;
-}
-#endif
-
-int lttng_calibrate(struct lttng_kernel_abi_calibrate *calibrate);
-
-extern const struct file_operations lttng_tracepoint_list_fops;
-extern const struct file_operations lttng_syscall_list_fops;
-
-#define TRACEPOINT_HAS_DATA_ARG
#endif /* _LTTNG_EVENTS_H */
projects / lttng-modules.git / blobdiff