1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef TOOLCHAIN_H 18 #define TOOLCHAIN_H 19 20 #ifdef __cplusplus 21 extern "C" { 22 #endif 23 24 #if defined (__ICCARM__) 25 #include <stdint.h> 26 #include "intrinsics.h" 27 28 /* IAR DLib errno.h does not include all the necessary error codes by default. */ 29 #define EIO 5 30 #define ENXIO 6 31 #define ENOMEM 12 32 #define EBUSY 16 33 #define ENODEV 19 34 #define EINVAL 22 35 #define EOPNOTSUPP 95 36 37 /* IAR does not support LIKELY() and UNLIKELY() for optimization purposes. */ 38 #define LIKELY(x) (x) 39 #define UNLIKELY(x) (x) 40 #define CLZ __CLZ 41 42 #define KEEP_SYMBOL __root static void 43 #define NO_RETURN __noreturn void 44 #define VOID_WEAK __weak void 45 #define WEAK_ALIAS(X,Y) _Pragma(PRAGMA_HELPER(X,Y,weak)) void X(void) 46 #define PLACE_IN(loc, type, name) _Pragma(PRAGMA_HELPER(location,loc,)) type name 47 #define PLACE_IN_NAKED(loc, type, name) _Pragma(PRAGMA_HELPER(location,loc,)) __task type name 48 #define APP_ENTRY _Pragma(PRAGMA_HELPER(location,".internal_app_init",)) __root static const struct AppHdr 49 #define APP_ENTRY2 _Pragma(PRAGMA_HELPER(location,".app_init",)) __root static struct AppFuncs 50 51 #define STACKLESS __stackless 52 53 #ifndef PRINTF_ATTRIBUTE 54 #define PRINTF_ATTRIBUTE(string_index, first_to_check) 55 #endif 56 57 #define SET_PACKED_STRUCT_MODE_ON _Pragma("pack(push, 1)") 58 #define SET_PACKED_STRUCT_MODE_OFF _Pragma("pack(pop)") 59 60 #ifndef ATTRIBUTE_PACKED 61 #define ATTRIBUTE_PACKED 62 #endif 63 64 #define UNROLLED 65 66 #define SET_INTERNAL_LOCATION(x, y) _Pragma((x, y)) __root 67 68 #define SET_INTERNAL_LOCATION_ATTRIBUTES(x, y) 69 70 #define SET_EXTERNAL_APP_ATTRIBUTES(x, y, z) 71 72 #define SET_EXTERNAL_APP_VERSION(x, y, z) 73 74 #define DECLARE_OS_ALIGNMENT(nam, size, extra_keyword, struct_type) _Pragma("data_alignment=4") extra_keyword uint8_t _##nam##_store [size]; extra_keyword #struct_type *nam = (#struct_type *)_##nam##_store 75 76 #elif defined(__GNUC__) 77 78 #define STRINGIFY(s) _STRINGIFY(s) 79 #define _STRINGIFY(s) #s 80 81 #define NO_RETURN void __attribute__((noreturn)) 82 #define LIKELY(x) (__builtin_expect(x, 1)) 83 #define UNLIKELY(x) (__builtin_expect(x, 0)) 84 85 #define CLZ __builtin_clz 86 #define APP_ENTRY static struct AppEntry __attribute__((used,section (".app_init"))) 87 #define KEEP_SYMBOL static void __attribute__((used)) 88 #define PLACE_IN(loc, type, name) type __attribute__ ((section(loc))) name 89 #define PLACE_IN_NAKED(loc, type, name) type __attribute__ ((naked, section(loc))) name 90 #define VOID_WEAK void __attribute__ ((weak)) 91 #define WEAK_ALIAS(X,Y) void X(void) __attribute__ ((weak, alias (STRINGIFY(Y)))) 92 93 #define STACKLESS __attribute__((naked)) 94 95 #ifndef PRINTF_ATTRIBUTE 96 #define PRINTF_ATTRIBUTE(string_index, first_to_check) \ 97 __attribute__((format(printf, string_index, first_to_check))) 98 #endif 99 100 #define SET_PACKED_STRUCT_MODE_ON 101 #define SET_PACKED_STRUCT_MODE_OFF 102 103 #ifndef ATTRIBUTE_PACKED 104 #define ATTRIBUTE_PACKED __attribute__((packed)) 105 #endif 106 107 #define UNROLLED __attribute__((optimize("unroll-loops"))) 108 109 #define SET_INTERNAL_LOCATION(x, y) 110 111 #define SET_INTERNAL_LOCATION_ATTRIBUTES(x, y) __attribute__((x,y)) 112 113 #define SET_EXTERNAL_APP_ATTRIBUTES(x, y, z) __attribute__((x, y, z)) 114 115 #define SET_EXTERNAL_APP_VERSION(x, y, z) __attribute__((x, y, z)) 116 117 #define DECLARE_OS_ALIGNMENT(nam, size, extra_keyword, struct_type) extra_keyword uint8_t _##nam##_store [size] __attribute__((aligned(4))); extra_keyword struct_type *nam = (struct_type *)_##nam##_store 118 119 #endif 120 121 #ifdef __cplusplus 122 } 123 #endif 124 125 #endif 126