};
struct lttng_probe_desc {
- const struct lttng_event_desc *event_desc;
+ const struct lttng_event_desc **event_desc;
unsigned int nr_events;
struct list_head head; /* chain registered probes */
};
+struct lttng_krp; /* Kretprobe handling */
+
/*
* ltt_event structure is referred to by the tracing fast path. It must be
* kept small.
struct kprobe kp;
char *symbol_name;
} kprobe;
+ struct {
+ struct lttng_krp *lttng_krp;
+ char *symbol_name;
+ } kretprobe;
struct {
char *symbol_name;
} ftrace;
* may change due to concurrent writes.
*/
size_t (*packet_avail_size)(struct channel *chan);
- wait_queue_head_t *(*get_reader_wait_queue)(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);
struct list_head list; /* Channel list */
struct ltt_channel_ops *ops;
struct ltt_transport *transport;
+ struct ltt_event **sc_table; /* for syscall tracing */
+ struct ltt_event *sc_unknown; /* for unknown syscalls */
+ struct ltt_event *sc_compat_unknown;
+ struct ltt_event *sc_exit; /* for syscall exit */
int header_type; /* 0: unset, 1: compact, 2: large */
int metadata_dumped:1;
};
struct ltt_event *ltt_event_create(struct ltt_channel *chan,
struct lttng_kernel_event *event_param,
- void *filter);
+ void *filter,
+ const struct lttng_event_desc *internal_desc);
int ltt_channel_enable(struct ltt_channel *channel);
int ltt_channel_disable(struct ltt_channel *channel);
void ltt_event_put(const struct lttng_event_desc *desc);
int ltt_probes_init(void);
void ltt_probes_exit(void);
+
+#ifdef CONFIG_HAVE_SYSCALL_TRACEPOINTS
+int lttng_syscalls_register(struct ltt_channel *chan, void *filter);
+int lttng_syscalls_unregister(struct ltt_channel *chan);
+#else
+static inline int lttng_syscalls_register(struct ltt_channel *chan, void *filter)
+{
+ return -ENOSYS;
+}
+
+static inline int lttng_syscalls_unregister(struct ltt_channel *chan)
+{
+ return 0;
+}
+#endif
+
struct lttng_ctx_field *lttng_append_context(struct lttng_ctx **ctx);
int lttng_find_context(struct lttng_ctx *ctx, const char *name);
void lttng_remove_context_field(struct lttng_ctx **ctx,
int lttng_add_vtid_to_ctx(struct lttng_ctx **ctx);
int lttng_add_ppid_to_ctx(struct lttng_ctx **ctx);
int lttng_add_vppid_to_ctx(struct lttng_ctx **ctx);
-#ifdef CONFIG_PERF_EVENTS
+#if defined(CONFIG_PERF_EVENTS) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33))
int lttng_add_perf_counter_to_ctx(uint32_t type,
uint64_t config,
const char *name,
}
#endif
+#ifdef CONFIG_KRETPROBES
+int lttng_kretprobes_register(const char *name,
+ const char *symbol_name,
+ uint64_t offset,
+ uint64_t addr,
+ struct ltt_event *event_entry,
+ struct ltt_event *event_exit);
+void lttng_kretprobes_unregister(struct ltt_event *event);
+void lttng_kretprobes_destroy_private(struct ltt_event *event);
+#else
+static inline
+int lttng_kretprobes_register(const char *name,
+ const char *symbol_name,
+ uint64_t offset,
+ uint64_t addr,
+ struct ltt_event *event_entry,
+ struct ltt_event *event_exit)
+{
+ return -ENOSYS;
+}
+
+static inline
+void lttng_kretprobes_unregister(struct ltt_event *event)
+{
+}
+
+static inline
+void lttng_kretprobes_destroy_private(struct ltt_event *event)
+{
+}
+#endif
+
#ifdef CONFIG_DYNAMIC_FTRACE
int lttng_ftrace_register(const char *name,
const char *symbol_name,
}
#endif
+int lttng_calibrate(struct lttng_kernel_calibrate *calibrate);
+
extern const struct file_operations lttng_tracepoint_list_fops;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))