LTTNG_ENABLER_FORMAT_NAME,
};
+enum channel_type {
+ PER_CPU_CHANNEL,
+ METADATA_CHANNEL,
+};
+
/*
* Objects in a linked-list of enablers, owned by an event.
*/
};
+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,
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 {
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);
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);
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. */
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. */
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 */
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);
#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(
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;
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);
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);
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);
projects / lttng-modules.git / blobdiff