liblttng-ust/tracepoint-internal.h

   1 /*
   2  * SPDX-License-Identifier: LGPL-2.1-only
   3  *
   4  * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   5  */
   6
   7 #ifndef _LTTNG_TRACEPOINT_INTERNAL_H
   8 #define _LTTNG_TRACEPOINT_INTERNAL_H
   9
  10 #include <urcu/list.h>
  11 #include <lttng/tracepoint-types.h>
  12 #include <lttng/ust-events.h>
  13
  14 #define TRACE_DEFAULT   TRACE_DEBUG_LINE
  15
  16 struct tracepoint_lib {
  17         struct cds_list_head list;      /* list of registered libs */
  18         struct lttng_ust_tracepoint * const *tracepoints_start;
  19         int tracepoints_count;
  20         struct cds_list_head callsites;
  21 };
  22
  23 extern int tracepoint_probe_register_noupdate(const char *name,
  24                 void (*callback)(void), void *priv,
  25                 const char *signature);
  26 extern int tracepoint_probe_unregister_noupdate(const char *name,
  27                 void (*callback)(void), void *priv);
  28 extern void tracepoint_probe_update_all(void);
  29 extern int __tracepoint_probe_register_queue_release(const char *name,
  30                 void (*func)(void), void *data, const char *signature);
  31 extern int __tracepoint_probe_unregister_queue_release(const char *name,
  32                 void (*func)(void), void *data);
  33 extern void __tracepoint_probe_prune_release_queue(void);
  34
  35 void lttng_ust_synchronize_trace(void);
  36
  37 /*
  38  * call after disconnection of last probe implemented within a
  39  * shared object before unmapping the library that contains the probe.
  40  */
  41 static inline void tracepoint_synchronize_unregister(void)
  42 {
  43         lttng_ust_synchronize_trace();
  44 }
  45
  46 extern void init_tracepoint(void);
  47 extern void exit_tracepoint(void);
  48
  49 void *lttng_ust_tp_check_weak_hidden1(void);
  50 void *lttng_ust_tp_check_weak_hidden2(void);
  51 void *lttng_ust_tp_check_weak_hidden3(void);
  52
  53 #endif /* _LTTNG_TRACEPOINT_INTERNAL_H */