include/wrapper/tracepoint.h

   1 /* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
   2  *
   3  * wrapper/tracepoint.h
   4  *
   5  * wrapper around DECLARE_EVENT_CLASS.
   6  *
   7  * Copyright (C) 2011-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   8  */
   9
  10 #ifndef _LTTNG_WRAPPER_TRACEPOINT_H
  11 #define _LTTNG_WRAPPER_TRACEPOINT_H
  12
  13 #include <lttng/kernel-version.h>
  14 #include <lttng/tracepoint.h>
  15 #include <linux/tracepoint.h>
  16 #include <linux/module.h>
  17
  18 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,10,0))
  19 #define LTTNG_DEFINE_TRACE(name, proto, args)           \
  20         DEFINE_TRACE(name, PARAMS(proto), PARAMS(args))
  21 #else
  22 #define LTTNG_DEFINE_TRACE(name, proto, args)           \
  23         DEFINE_TRACE(name)
  24 #endif
  25
  26 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,19,0))
  27 static inline struct tracepoint *lttng_tracepoint_ptr_deref(tracepoint_ptr_t *p)
  28 {
  29         return tracepoint_ptr_deref(p);
  30 }
  31 #else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,19,0)) */
  32 static inline struct tracepoint *lttng_tracepoint_ptr_deref(struct tracepoint * const *p)
  33 {
  34         return *p;
  35 }
  36 #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,19,0)) */
  37
  38 #endif /* _LTTNG_WRAPPER_TRACEPOINT_H */