| /* |
| * Copyright (c) 2010-2014, Wind River Systems, Inc. |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| /** |
| * @file |
| * @brief Macros to abstract toolchain specific capabilities |
| * |
| * This file contains various macros to abstract compiler capabilities that |
| * utilize toolchain specific attributes and/or pragmas. |
| */ |
| |
| #ifndef ZEPHYR_INCLUDE_TOOLCHAIN_H_ |
| #define ZEPHYR_INCLUDE_TOOLCHAIN_H_ |
| |
| /** |
| * @def HAS_BUILTIN(x) |
| * @brief Check if the compiler supports the built-in function \a x. |
| * |
| * This macro is for use with conditional compilation to enable code using a |
| * builtin function that may not be available in every compiler. |
| */ |
| #ifdef __has_builtin |
| #define HAS_BUILTIN(x) __has_builtin(x) |
| #else |
| /* |
| * The compiler doesn't provide the __has_builtin() macro, so instead we depend |
| * on the toolchain-specific headers to define HAS_BUILTIN_x for the builtins |
| * supported. |
| */ |
| #define HAS_BUILTIN(x) HAS_BUILTIN_##x |
| #endif |
| |
| #if defined(__TOOLCHAIN_CUSTOM__) |
| /* This include line exists for off-tree definitions of compilers, |
| * and therefore this header is not meant to exist in-tree |
| */ |
| #include <toolchain/other.h> |
| #elif defined(__XCC__) |
| #include <zephyr/toolchain/xcc.h> |
| #elif defined(__CCAC__) |
| #include <zephyr/toolchain/mwdt.h> |
| #elif defined(__ARMCOMPILER_VERSION) |
| #include <zephyr/toolchain/armclang.h> |
| #elif defined(__llvm__) |
| #include <zephyr/toolchain/llvm.h> |
| #elif defined(__GNUC__) || (defined(_LINKER) && defined(__GCC_LINKER_CMD__)) |
| #include <zephyr/toolchain/gcc.h> |
| #else |
| #error "Invalid/unknown toolchain configuration" |
| #endif |
| |
| /** |
| * @def GCC_VERSION |
| * @brief GCC version in xxyyzz for xx.yy.zz. Zero if not GCC compatible. |
| */ |
| #ifndef GCC_VERSION |
| #define GCC_VERSION 0 |
| #endif |
| |
| /** |
| * @def CLANG_VERSION |
| * @brief Clang version in xxyyzz for xx.yy.zz. Zero if not Clang compatible. |
| */ |
| #ifndef CLANG_VERSION |
| #define CLANG_VERSION 0 |
| #endif |
| |
| /** |
| * @def TOOLCHAIN_HAS_PRAGMA_DIAG |
| * @brief Indicate if toolchain supports \#pragma diagnostics. |
| */ |
| #ifndef TOOLCHAIN_HAS_PRAGMA_DIAG |
| #define TOOLCHAIN_HAS_PRAGMA_DIAG 0 |
| #endif |
| |
| /** |
| * @def TOOLCHAIN_HAS_C_GENERIC |
| * @brief Indicate if toolchain supports C Generic. |
| */ |
| #if __STDC_VERSION__ >= 201112L |
| /* _Generic is introduced in C11, so it is supported. */ |
| # ifdef TOOLCHAIN_HAS_C_GENERIC |
| # undef TOOLCHAIN_HAS_C_GENERIC |
| # endif |
| # define TOOLCHAIN_HAS_C_GENERIC 1 |
| #else |
| # ifndef TOOLCHAIN_HAS_C_GENERIC |
| # define TOOLCHAIN_HAS_C_GENERIC 0 |
| # endif |
| #endif |
| |
| /** |
| * @def TOOLCHAIN_HAS_C_AUTO_TYPE |
| * @brief Indicate if toolchain supports C __auto_type. |
| */ |
| #ifndef TOOLCHAIN_HAS_C_AUTO_TYPE |
| #define TOOLCHAIN_HAS_C_AUTO_TYPE 0 |
| #endif |
| |
| /* |
| * Ensure that __BYTE_ORDER__ and related preprocessor definitions are defined, |
| * as these are often used without checking for definition and doing so can |
| * cause unexpected behaviours. |
| */ |
| #ifndef _LINKER |
| #if !defined(__BYTE_ORDER__) || !defined(__ORDER_BIG_ENDIAN__) || \ |
| !defined(__ORDER_LITTLE_ENDIAN__) |
| |
| #error "__BYTE_ORDER__ is not defined" |
| |
| #endif |
| #endif /* !_LINKER */ |
| |
| #endif /* ZEPHYR_INCLUDE_TOOLCHAIN_H_ */ |