Commit | Line | Data |
---|---|---|
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 | ||
0a3faf2a MJ |
30 | #include <limits.h> |
31 | ||
2df82195 FD |
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) || \ | |
029ba7b2 MD |
67 | __builtin_types_compatible_p(type, unsigned char) || \ |
68 | __builtin_types_compatible_p(type, short) || \ | |
69 | __builtin_types_compatible_p(type, unsigned short) || \ | |
70 | __builtin_types_compatible_p(type, int) || \ | |
71 | __builtin_types_compatible_p(type, unsigned int) || \ | |
72 | __builtin_types_compatible_p(type, long) || \ | |
73 | __builtin_types_compatible_p(type, unsigned long) || \ | |
74 | __builtin_types_compatible_p(type, long long) || \ | |
75 | __builtin_types_compatible_p(type, unsigned long long)) | |
2df82195 FD |
76 | #endif |
77 | ||
78 | #define _lttng_array_element_type_is_supported(_type, _item) \ | |
79 | lttng_static_assert(_lttng_is_integer(_type), \ | |
80 | "Non-integer type `" #_item "` not supported as element of CTF_ARRAY or CTF_SEQUENCE", \ | |
81 | Non_integer_type__##_item##__not_supported_as_element_of_CTF_ARRAY_or_CTF_SEQUENCE); | |
82 | ||
7dd08bec | 83 | #endif /* _LTTNG_UST_TRACER_H */ |