1 #ifndef _LTTNG_TRACER_H
2 #define _LTTNG_TRACER_H
5 * Copyright (C) 2005-2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 * This contains the core definitions for the Linux Trace Toolkit.
9 * Copyright 2011-2012 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 * Permission is hereby granted, free of charge, to any person obtaining a copy
12 * of this software and associated documentation files (the "Software"), to deal
13 * in the Software without restriction, including without limitation the rights
14 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
15 * copies of the Software, and to permit persons to whom the Software is
16 * furnished to do so, subject to the following conditions:
18 * The above copyright notice and this permission notice shall be included in
19 * all copies or substantial portions of the Software.
22 #include <lttng/ust-config.h>
23 #include <lttng/ust-version.h>
25 #ifndef LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS
26 /* Align data on its natural alignment */
27 #define RING_BUFFER_ALIGN
34 #ifdef RING_BUFFER_ALIGN
35 #define lttng_alignof(type) __alignof__(type)
37 #define lttng_alignof(type) 1
40 #define lttng_is_signed_type(type) (((type)(-1)) < 0)
42 #endif /* _LTTNG_TRACER_CORE_H */
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