Zephyr Project API 4.2.99
A Scalable Open Source RTOS
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llvm.h
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1/*
2 * Copyright (c) 2021 Intel Corporation.
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7#ifndef ZEPHYR_INCLUDE_TOOLCHAIN_LLVM_H_
8#define ZEPHYR_INCLUDE_TOOLCHAIN_LLVM_H_
9
10#ifndef ZEPHYR_INCLUDE_TOOLCHAIN_H_
11#error Please do not include toolchain-specific headers directly, use <zephyr/toolchain.h> instead
12#endif
13
14#define __no_optimization __attribute__((optnone))
15
16#ifndef __fallthrough
17#if __clang_major__ >= 10
18#define __fallthrough __attribute__((fallthrough))
19#endif
20#endif
21
22#define TOOLCHAIN_CLANG_VERSION \
23 ((__clang_major__ * 10000) + (__clang_minor__ * 100) + \
24 __clang_patchlevel__)
25
26#define TOOLCHAIN_HAS_PRAGMA_DIAG 1
27
28#if TOOLCHAIN_CLANG_VERSION >= 30800
29#define TOOLCHAIN_HAS_C_GENERIC 1
30#define TOOLCHAIN_HAS_C_AUTO_TYPE 1
31#endif
32
34
35/* clear out common version. The build assert assert from gcc.h is defined to be empty */
36#undef BUILD_ASSERT
37
38#if defined(__cplusplus) && (__cplusplus >= 201103L)
39
40/* C++11 has static_assert built in */
41#define BUILD_ASSERT(EXPR, MSG...) static_assert(EXPR, "" MSG)
42
43#elif !defined(__cplusplus) && ((__STDC_VERSION__) >= 201100)
44
45/* C11 has static_assert built in */
46#define BUILD_ASSERT(EXPR, MSG...) _Static_assert((EXPR), "" MSG)
47
48#else
49
50/* Rely on that the C-library provides a static assertion function */
51#define BUILD_ASSERT(EXPR, MSG...) _Static_assert((EXPR), "" MSG)
52
53#endif
54
55#define TOOLCHAIN_WARNING_SIZEOF_ARRAY_DECAY "-Wsizeof-array-decay"
56#define TOOLCHAIN_WARNING_UNNEEDED_INTERNAL_DECLARATION "-Wunneeded-internal-declaration"
57
58#define TOOLCHAIN_DISABLE_CLANG_WARNING(warning) _TOOLCHAIN_DISABLE_WARNING(clang, warning)
59#define TOOLCHAIN_ENABLE_CLANG_WARNING(warning) _TOOLCHAIN_ENABLE_WARNING(clang, warning)
60
61/*
62 * Provide these definitions only when minimal libc is used.
63 * Avoid collision with defines from include/zephyr/toolchain/zephyr_stdint.h
64 */
65#ifdef CONFIG_MINIMAL_LIBC
66
67/*
68 * Predefined __INTN_C/__UINTN_C macros are provided by clang starting in version 20.1.
69 * Avoid redefining these macros if a sufficiently modern clang is being used.
70 */
71#if TOOLCHAIN_CLANG_VERSION < 200100
72
73#define __int_c(v, suffix) v ## suffix
74#define int_c(v, suffix) __int_c(v, suffix)
75#define uint_c(v, suffix) __int_c(v ## U, suffix)
76
77#ifndef CONFIG_ENFORCE_ZEPHYR_STDINT
78
79#ifdef __INT64_TYPE__
80#undef __int_least64_c_suffix__
81#undef __int_least32_c_suffix__
82#undef __int_least16_c_suffix__
83#undef __int_least8_c_suffix__
84#ifdef __INT64_C_SUFFIX__
85#define __int_least64_c_suffix__ __INT64_C_SUFFIX__
86#define __int_least32_c_suffix__ __INT64_C_SUFFIX__
87#define __int_least16_c_suffix__ __INT64_C_SUFFIX__
88#define __int_least8_c_suffix__ __INT64_C_SUFFIX__
89#endif /* __INT64_C_SUFFIX__ */
90#endif /* __INT64_TYPE__ */
91
92#ifdef __INT_LEAST64_TYPE__
93#ifdef __int_least64_c_suffix__
94#define __INT64_C(x) int_c(x, __int_least64_c_suffix__)
95#define __UINT64_C(x) uint_c(x, __int_least64_c_suffix__)
96#else
97#define __INT64_C(x) x
98#define __UINT64_C(x) x ## U
99#endif /* __int_least64_c_suffix__ */
100#endif /* __INT_LEAST64_TYPE__ */
101
102#ifdef __INT32_TYPE__
103#undef __int_least32_c_suffix__
104#undef __int_least16_c_suffix__
105#undef __int_least8_c_suffix__
106#ifdef __INT32_C_SUFFIX__
107#define __int_least32_c_suffix__ __INT32_C_SUFFIX__
108#define __int_least16_c_suffix__ __INT32_C_SUFFIX__
109#define __int_least8_c_suffix__ __INT32_C_SUFFIX__
110#endif /* __INT32_C_SUFFIX__ */
111#endif /* __INT32_TYPE__ */
112
113#ifdef __INT_LEAST32_TYPE__
114#ifdef __int_least32_c_suffix__
115#define __INT32_C(x) int_c(x, __int_least32_c_suffix__)
116#define __UINT32_C(x) uint_c(x, __int_least32_c_suffix__)
117#else
118#define __INT32_C(x) x
119#define __UINT32_C(x) x ## U
120#endif /* __int_least32_c_suffix__ */
121#endif /* __INT_LEAST32_TYPE__ */
122
123#endif /* !CONFIG_ENFORCE_ZEPHYR_STDINT */
124
125#ifdef __INT16_TYPE__
126#undef __int_least16_c_suffix__
127#undef __int_least8_c_suffix__
128#ifdef __INT16_C_SUFFIX__
129#define __int_least16_c_suffix__ __INT16_C_SUFFIX__
130#define __int_least8_c_suffix__ __INT16_C_SUFFIX__
131#endif /* __INT16_C_SUFFIX__ */
132#endif /* __INT16_TYPE__ */
133
134#ifdef __INT_LEAST16_TYPE__
135#ifdef __int_least16_c_suffix__
136#define __INT16_C(x) int_c(x, __int_least16_c_suffix__)
137#define __UINT16_C(x) uint_c(x, __int_least16_c_suffix__)
138#else
139#define __INT16_C(x) x
140#define __UINT16_C(x) x ## U
141#endif /* __int_least16_c_suffix__ */
142#endif /* __INT_LEAST16_TYPE__ */
143
144#ifdef __INT8_TYPE__
145#undef __int_least8_c_suffix__
146#ifdef __INT8_C_SUFFIX__
147#define __int_least8_c_suffix__ __INT8_C_SUFFIX__
148#endif /* __INT8_C_SUFFIX__ */
149#endif /* __INT8_TYPE__ */
150
151#ifdef __INT_LEAST8_TYPE__
152#ifdef __int_least8_c_suffix__
153#define __INT8_C(x) int_c(x, __int_least8_c_suffix__)
154#define __UINT8_C(x) uint_c(x, __int_least8_c_suffix__)
155#else
156#define __INT8_C(x) x
157#define __UINT8_C(x) x ## U
158#endif /* __int_least8_c_suffix__ */
159#endif /* __INT_LEAST8_TYPE__ */
160
161#define __INTMAX_C(x) int_c(x, __INTMAX_C_SUFFIX__)
162#define __UINTMAX_C(x) int_c(x, __UINTMAX_C_SUFFIX__)
163
164#endif /* TOOLCHAIN_CLANG_VERSION < 200100 */
165
166#endif /* CONFIG_MINIMAL_LIBC */
167
168#endif /* ZEPHYR_INCLUDE_TOOLCHAIN_LLVM_H_ */
GCC toolchain abstraction.