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 int tracepoint_probe_register_noupdate(const char *name,
  24                 void (*callback)(void), void *priv,
  25                 const char *signature)
  26         __attribute__((visibility("hidden")));
  27
  28 int tracepoint_probe_unregister_noupdate(const char *name,
  29                 void (*callback)(void), void *priv)
  30         __attribute__((visibility("hidden")));
  31
  32 void tracepoint_probe_update_all(void)
  33         __attribute__((visibility("hidden")));
  34
  35
  36 void *lttng_ust_tp_check_weak_hidden1(void)
  37         __attribute__((visibility("hidden")));
  38
  39 void *lttng_ust_tp_check_weak_hidden2(void)
  40         __attribute__((visibility("hidden")));
  41
  42 void *lttng_ust_tp_check_weak_hidden3(void)
  43         __attribute__((visibility("hidden")));
  44
  45 /*
  46  * These symbols are ABI between liblttng-ust-tracepoint and liblttng-ust,
  47  * which is why they are not hidden and not part of the public API.
  48  */
  49 int lttng_ust_tp_probe_register_queue_release(const char *name,
  50                 void (*func)(void), void *data, const char *signature);
  51 int lttng_ust_tp_probe_unregister_queue_release(const char *name,
  52                 void (*func)(void), void *data);
  53 void lttng_ust_tp_probe_prune_release_queue(void);
  54
  55 void lttng_ust_tp_init(void);
  56 void lttng_ust_tp_exit(void);
  57
  58
  59 #endif /* _LTTNG_TRACEPOINT_INTERNAL_H */