Zephyr API Documentation  3.7.0-rc1
A Scalable Open Source RTOS
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toolchain.h
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1/*
2 * Copyright (c) 2010-2014, Wind River Systems, Inc.
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
15#ifndef ZEPHYR_INCLUDE_TOOLCHAIN_H_
16#define ZEPHYR_INCLUDE_TOOLCHAIN_H_
17
25#ifdef __has_builtin
26#define HAS_BUILTIN(x) __has_builtin(x)
27#else
28/*
29 * The compiler doesn't provide the __has_builtin() macro, so instead we depend
30 * on the toolchain-specific headers to define HAS_BUILTIN_x for the builtins
31 * supported.
32 */
33#define HAS_BUILTIN(x) HAS_BUILTIN_##x
34#endif
35
36#if defined(__TOOLCHAIN_CUSTOM__)
37/* This include line exists for off-tree definitions of compilers,
38 * and therefore this header is not meant to exist in-tree
39 */
40#include <toolchain/other.h>
41#elif defined(__XCC__)
43#elif defined(__CCAC__)
45#elif defined(__ARMCOMPILER_VERSION)
47#elif defined(__llvm__) || (defined(_LINKER) && defined(__LLD_LINKER_CMD__))
49#elif defined(__GNUC__) || (defined(_LINKER) && defined(__GCC_LINKER_CMD__))
51#else
52#error "Invalid/unknown toolchain configuration"
53#endif
54
66#ifndef __noasan
67#define __noasan
68#endif
69
74#ifndef TOOLCHAIN_GCC_VERSION
75#define TOOLCHAIN_GCC_VERSION 0
76#endif
77
82#ifndef TOOLCHAIN_CLANG_VERSION
83#define TOOLCHAIN_CLANG_VERSION 0
84#endif
85
90#ifndef TOOLCHAIN_HAS_PRAGMA_DIAG
91#define TOOLCHAIN_HAS_PRAGMA_DIAG 0
92#endif
93
98#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
99/* _Generic is introduced in C11, so it is supported. */
100# ifdef TOOLCHAIN_HAS_C_GENERIC
101# undef TOOLCHAIN_HAS_C_GENERIC
102# endif
103# define TOOLCHAIN_HAS_C_GENERIC 1
104#else
105# ifndef TOOLCHAIN_HAS_C_GENERIC
106# define TOOLCHAIN_HAS_C_GENERIC 0
107# endif
108#endif
109
114#ifndef TOOLCHAIN_HAS_C_AUTO_TYPE
115#define TOOLCHAIN_HAS_C_AUTO_TYPE 0
116#endif
117
122#ifndef TOOLCHAIN_HAS_ZLA
123#define TOOLCHAIN_HAS_ZLA 0
124#endif
125
133#ifndef TOOLCHAIN_IGNORE_WSHADOW_BEGIN
134#define TOOLCHAIN_IGNORE_WSHADOW_BEGIN
135#endif
136
144#ifndef TOOLCHAIN_IGNORE_WSHADOW_END
145#define TOOLCHAIN_IGNORE_WSHADOW_END
146#endif
147
148/*
149 * Ensure that __BYTE_ORDER__ and related preprocessor definitions are defined,
150 * and that they match the Kconfig option that is used in the code itself to
151 * check for endianness.
152 */
153#ifndef _LINKER
154#if !defined(__BYTE_ORDER__) || !defined(__ORDER_BIG_ENDIAN__) || \
155 !defined(__ORDER_LITTLE_ENDIAN__)
156
157/*
158 * Displaying values unfortunately requires #pragma message which can't
159 * be taken for granted + STRINGIFY() which is not available in this .h
160 * file.
161 */
162#error "At least one byte _ORDER_ macro is not defined"
163
164#else
165
166#if (defined(CONFIG_BIG_ENDIAN) && (__BYTE_ORDER__ != __ORDER_BIG_ENDIAN__)) || \
167 (defined(CONFIG_LITTLE_ENDIAN) && (__BYTE_ORDER__ != __ORDER_LITTLE_ENDIAN__))
168
169# error "Kconfig/toolchain endianness mismatch:"
170
171# if (__BYTE_ORDER__ != __ORDER_BIG_ENDIAN__) && (__BYTE_ORDER__ != __ORDER_LITTLE_ENDIAN__)
172# error "Unknown __BYTE_ORDER__ value"
173# else
174# ifdef CONFIG_BIG_ENDIAN
175# error "CONFIG_BIG_ENDIAN but __ORDER_LITTLE_ENDIAN__"
176# endif
177# ifdef CONFIG_LITTLE_ENDIAN
178# error "CONFIG_LITTLE_ENDIAN but __ORDER_BIG_ENDIAN__"
179# endif
180# endif
181
182#endif /* Endianness mismatch */
183
184#endif /* all _ORDER_ macros defined */
185
186#endif /* !_LINKER */
187
188#endif /* ZEPHYR_INCLUDE_TOOLCHAIN_H_ */
GCC toolchain abstraction.