projects / lttng-ust.git / blame
| Commit | Line | Data |
|---|---|---|
| 1ea11eab | 1 | /* |
| c0c0989a | 2 | * SPDX-License-Identifier: MIT |
| 1ea11eab | 3 | * |
| c0c0989a | 4 | * Copyright (C) 2005-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| e92f3e28 | 5 | * |
| c0c0989a | 6 | * This contains the core definitions for the Linux Trace Toolkit. |
| 1ea11eab MD |
7 | */ |
| 8 | ||
| c0c0989a MJ |
9 | #ifndef _LTTNG_UST_TRACER_H |
| 10 | #define _LTTNG_UST_TRACER_H | |
| 11 | ||
| 0a3faf2a MJ |
12 | #include <limits.h> |
| 13 | ||
| 2df82195 FD |
14 | #if defined (__cplusplus) |
| 15 | #include <type_traits> | |
| 16 | #endif | |
| 17 | ||
| 18 | #include <lttng/ust-compiler.h> | |
| 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 | ||
| 72914f82 | 37 | #define lttng_is_signed_type(type) ((type) -1 < (type) 0) |
| 1ea11eab | 38 | |
| 2df82195 FD |
39 | /* |
| 40 | * This macro adds a compilation assertion that CTF arrays and sequences | |
| 41 | * declared by the users are of an integral type. | |
| 42 | */ | |
| 43 | ||
| 44 | #if defined(__cplusplus) | |
| 45 | #define _lttng_is_integer(type) (std::is_integral<type>::value) | |
| 46 | #else | |
| 47 | #define _lttng_is_integer(type) (__builtin_types_compatible_p(type, _Bool) || \ | |
| 48 | __builtin_types_compatible_p(type, char) || \ | |
| 029ba7b2 MD |
49 | __builtin_types_compatible_p(type, unsigned char) || \ |
| 50 | __builtin_types_compatible_p(type, short) || \ | |
| 51 | __builtin_types_compatible_p(type, unsigned short) || \ | |
| 52 | __builtin_types_compatible_p(type, int) || \ | |
| 53 | __builtin_types_compatible_p(type, unsigned int) || \ | |
| 54 | __builtin_types_compatible_p(type, long) || \ | |
| 55 | __builtin_types_compatible_p(type, unsigned long) || \ | |
| 56 | __builtin_types_compatible_p(type, long long) || \ | |
| 57 | __builtin_types_compatible_p(type, unsigned long long)) | |
| 2df82195 FD |
58 | #endif |
| 59 | ||
| 60 | #define _lttng_array_element_type_is_supported(_type, _item) \ | |
| 61 | lttng_static_assert(_lttng_is_integer(_type), \ | |
| 62 | "Non-integer type `" #_item "` not supported as element of CTF_ARRAY or CTF_SEQUENCE", \ | |
| 63 | Non_integer_type__##_item##__not_supported_as_element_of_CTF_ARRAY_or_CTF_SEQUENCE); | |
| 64 | ||
| 7dd08bec | 65 | #endif /* _LTTNG_UST_TRACER_H */ |