[lttng-ust.git] / include / lttng / ust-tracer.h

#ifndef _LTTNG_TRACER_H
#define _LTTNG_TRACER_H

/*
 * Copyright (C) 2005-2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 *
 * This contains the core definitions for the Linux Trace Toolkit.
 *
 * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
 * OR IMPLIED.  ANY USE IS AT YOUR OWN RISK.
 *
 * Permission is hereby granted to use or copy this program
 * for any purpose,  provided the above notices are retained on all copies.
 * Permission to modify the code and to distribute modified code is granted,
 * provided the above notices are retained, and a notice that the code was
 * modified is included with the above copyright notice.
 */

#include <lttng/ust-config.h>
#include <lttng/ust-version.h>

#ifndef LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS
/* Align data on its natural alignment */
#define RING_BUFFER_ALIGN
#endif

#ifndef CHAR_BIT
#define CHAR_BIT 8
#endif

#ifdef RING_BUFFER_ALIGN
#define lttng_alignof(type)	__alignof__(type)
#else
#define lttng_alignof(type)	1
#endif

#define lttng_is_signed_type(type)           (((type)(-1)) < 0)

#endif /* _LTTNG_TRACER_CORE_H */
Commit	Line	Data
1ea11eab MD	1	#ifndef _LTTNG_TRACER_H
	2	#define _LTTNG_TRACER_H
	3
	4	/*
	5	* Copyright (C) 2005-2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
	6	*
	7	* This contains the core definitions for the Linux Trace Toolkit.
	8	*
b728d87e MD	9	* THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
b728d87e MD	10	* OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
1ea11eab	11	*
b728d87e MD	12	* Permission is hereby granted to use or copy this program
	13	* for any purpose, provided the above notices are retained on all copies.
	14	* Permission to modify the code and to distribute modified code is granted,
	15	* provided the above notices are retained, and a notice that the code was
	16	* modified is included with the above copyright notice.
1ea11eab MD	17	*/
1ea11eab MD	18
562c813a	19	#include <lttng/ust-config.h>
b728d87e	20	#include <lttng/ust-version.h>
d4d59a97	21
562c813a	22	#ifndef LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS
1ea11eab MD	23	/* Align data on its natural alignment */
	24	#define RING_BUFFER_ALIGN
	25	#endif
	26
1ea11eab MD	27	#ifndef CHAR_BIT
	28	#define CHAR_BIT 8
	29	#endif
	30
	31	#ifdef RING_BUFFER_ALIGN
	32	#define lttng_alignof(type) __alignof__(type)
	33	#else
	34	#define lttng_alignof(type) 1
	35	#endif
	36
	37	#define lttng_is_signed_type(type) (((type)(-1)) < 0)
	38
	39	#endif /* _LTTNG_TRACER_CORE_H */