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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 | /* * Copyright (c) 2010-2014 Wind River Systems, Inc. * * SPDX-License-Identifier: Apache-2.0 */ #ifndef TOOLCHAIN_COMMON_H #define TOOLCHAIN_COMMON_H /** * @file * @brief Common toolchain abstraction * * Macros to abstract compiler capabilities (common to all toolchains). */ /* Abstract use of extern keyword for compatibility between C and C++ */ #ifdef __cplusplus #define EXTERN_C extern "C" #else #define EXTERN_C extern #endif /* Use TASK_ENTRY_CPP to tag task entry points defined in C++ files. */ #ifdef __cplusplus #define TASK_ENTRY_CPP extern "C" #endif /* * Generate a reference to an external symbol. * The reference indicates to the linker that the symbol is required * by the module containing the reference and should be included * in the image if the module is in the image. * * The assembler directive ".set" is used to define a local symbol. * No memory is allocated, and the local symbol does not appear in * the symbol table. */ #ifdef _ASMLANGUAGE #define REQUIRES(sym) .set sym ## _Requires, sym #else #define REQUIRES(sym) __asm__ (".set " # sym "_Requires, " # sym "\n\t"); #endif #ifdef _ASMLANGUAGE #define SECTION .section #endif /* * If the project is being built for speed (i.e. not for minimum size) then * align functions and branches in executable sections to improve performance. */ #ifdef _ASMLANGUAGE #ifdef CONFIG_X86 #ifdef PERF_OPT #define PERFOPT_ALIGN .balign 16 #else #define PERFOPT_ALIGN .balign 1 #endif #elif defined(CONFIG_ARM) #ifdef CONFIG_ISA_THUMB #define PERFOPT_ALIGN .balign 2 #else #define PERFOPT_ALIGN .balign 4 #endif #elif defined(CONFIG_ARC) #define PERFOPT_ALIGN .balign 4 #elif defined(CONFIG_NIOS2) || defined(CONFIG_RISCV32) || \ defined(CONFIG_XTENSA) #define PERFOPT_ALIGN .balign 4 #elif defined(CONFIG_ARCH_POSIX) #else #error Architecture unsupported #endif #define GC_SECTION(sym) SECTION .text.##sym, "ax" #endif /* _ASMLANGUAGE */ /* force inlining a function */ #if !defined(_ASMLANGUAGE) #define ALWAYS_INLINE inline __attribute__((always_inline)) #endif #define _STRINGIFY(x) #x #define STRINGIFY(s) _STRINGIFY(s) /* Indicate that an array will be used for stack space. */ #if !defined(_ASMLANGUAGE) /* don't use this anymore, use K_DECLARE_STACK instead. Remove for 1.11 */ #define __stack __aligned(STACK_ALIGN) __DEPRECATED_MACRO #endif /* concatenate the values of the arguments into one */ #define _DO_CONCAT(x, y) x ## y #define _CONCAT(x, y) _DO_CONCAT(x, y) /* Additionally used as a sentinel by gen_syscalls.py to identify what * functions are system calls * * Note POSIX unit tests don't still generate the system call stubs, so * until https://github.com/zephyrproject-rtos/zephyr/issues/5006 is * fixed via possibly #4174, we introduce this hack -- which will * disallow us to test system calls in POSIX unit testing (currently * not used). */ #ifndef ZTEST_UNITTEST #define __syscall static inline #else #define __syscall #endif /* #ifndef ZTEST_UNITTEST */ #ifndef BUILD_ASSERT /* compile-time assertion that makes the build fail */ #define BUILD_ASSERT(EXPR) typedef char __build_assert_failure[(EXPR) ? 1 : -1] #endif #ifndef BUILD_ASSERT_MSG /* build assertion with message -- common implementation swallows message. */ #define BUILD_ASSERT_MSG(EXPR, MSG) BUILD_ASSERT(EXPR) #endif #endif /* TOOLCHAIN_COMMON_H */ |