projects / lttng-ust.git / blame
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| 7dd08bec MD |
1 | #ifndef _LTTNG_UST_TRACER_H |
| 2 | #define _LTTNG_UST_TRACER_H | |
| 1ea11eab MD |
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 | * | |
| e92f3e28 | 9 | * Copyright 2011-2012 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 1ea11eab | 10 | * |
| e92f3e28 MD |
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: | |
| 17 | * | |
| 18 | * The above copyright notice and this permission notice shall be included in | |
| 19 | * all copies or substantial portions of the Software. | |
| d2428e87 MD |
20 | * |
| 21 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| 22 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| 23 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
| 24 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
| 25 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
| 26 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
| 27 | * SOFTWARE. | |
| 1ea11eab MD |
28 | */ |
| 29 | ||
| 2df82195 FD |
30 | #include <stdint.h> |
| 31 | ||
| 32 | #if defined (__cplusplus) | |
| 33 | #include <type_traits> | |
| 34 | #endif | |
| 35 | ||
| 36 | #include <lttng/ust-compiler.h> | |
| 562c813a | 37 | #include <lttng/ust-config.h> |
| b728d87e | 38 | #include <lttng/ust-version.h> |
| d4d59a97 | 39 | |
| 562c813a | 40 | #ifndef LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS |
| 1ea11eab MD |
41 | /* Align data on its natural alignment */ |
| 42 | #define RING_BUFFER_ALIGN | |
| 43 | #endif | |
| 44 | ||
| 1ea11eab MD |
45 | #ifndef CHAR_BIT |
| 46 | #define CHAR_BIT 8 | |
| 47 | #endif | |
| 48 | ||
| 49 | #ifdef RING_BUFFER_ALIGN | |
| 50 | #define lttng_alignof(type) __alignof__(type) | |
| 51 | #else | |
| 52 | #define lttng_alignof(type) 1 | |
| 53 | #endif | |
| 54 | ||
| 72914f82 | 55 | #define lttng_is_signed_type(type) ((type) -1 < (type) 0) |
| 1ea11eab | 56 | |
| 2df82195 FD |
57 | /* |
| 58 | * This macro adds a compilation assertion that CTF arrays and sequences | |
| 59 | * declared by the users are of an integral type. | |
| 60 | */ | |
| 61 | ||
| 62 | #if defined(__cplusplus) | |
| 63 | #define _lttng_is_integer(type) (std::is_integral<type>::value) | |
| 64 | #else | |
| 65 | #define _lttng_is_integer(type) (__builtin_types_compatible_p(type, _Bool) || \ | |
| 66 | __builtin_types_compatible_p(type, char) || \ | |
| 67 | __builtin_types_compatible_p(type, int8_t) || \ | |
| 68 | __builtin_types_compatible_p(type, uint8_t) || \ | |
| 69 | __builtin_types_compatible_p(type, int16_t) || \ | |
| 70 | __builtin_types_compatible_p(type, uint16_t) || \ | |
| 71 | __builtin_types_compatible_p(type, int32_t) || \ | |
| 72 | __builtin_types_compatible_p(type, uint32_t) || \ | |
| 73 | __builtin_types_compatible_p(type, int64_t) || \ | |
| 74 | __builtin_types_compatible_p(type, uint64_t)) | |
| 75 | #endif | |
| 76 | ||
| 77 | #define _lttng_array_element_type_is_supported(_type, _item) \ | |
| 78 | lttng_static_assert(_lttng_is_integer(_type), \ | |
| 79 | "Non-integer type `" #_item "` not supported as element of CTF_ARRAY or CTF_SEQUENCE", \ | |
| 80 | Non_integer_type__##_item##__not_supported_as_element_of_CTF_ARRAY_or_CTF_SEQUENCE); | |
| 81 | ||
| 7dd08bec | 82 | #endif /* _LTTNG_UST_TRACER_H */ |