include/lttng/ust-tracer.h

   1 /*
   2  * SPDX-License-Identifier: MIT
   3  *
   4  * Copyright (C) 2005-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   5  *
   6  * This contains the core definitions for the Linux Trace Toolkit.
   7  */
   8
   9 #ifndef _LTTNG_UST_TRACER_H
  10 #define _LTTNG_UST_TRACER_H
  11
  12 #include <limits.h>
  13
  14 #include <lttng/ust-arch.h>
  15 #include <lttng/ust-compiler.h>
  16 #include <lttng/ust-config.h>
  17 #include <lttng/ust-utils.h>
  18 #include <lttng/ust-version.h>
  19
  20 #ifndef LTTNG_UST_ARCH_HAS_EFFICIENT_UNALIGNED_ACCESS
  21 /* Align data on its natural alignment */
  22 #define RING_BUFFER_ALIGN
  23 #endif
  24
  25 #ifndef CHAR_BIT
  26 #define CHAR_BIT 8
  27 #endif
  28
  29 #ifdef RING_BUFFER_ALIGN
  30 #define lttng_alignof(type)     __alignof__(type)
  31 #else
  32 #define lttng_alignof(type)     1
  33 #endif
  34
  35 #endif /* _LTTNG_UST_TRACER_H */