projects / lttng-ust.git / blame
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|---|---|---|
| 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 |
| 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 | */ |
| 18 | ||
| 4318ae1b | 19 | #include <lttng/config.h> |
| b728d87e | 20 | #include <lttng/ust-version.h> |
| d4d59a97 MD |
21 | |
| 22 | #ifndef 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 */ |