1 /* 2 * Copyright (c) 2019 BayLibre SAS 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 #ifndef ZEPHYR_INCLUDE_TOOLCHAIN_STDINT_H_ 8 #define ZEPHYR_INCLUDE_TOOLCHAIN_STDINT_H_ 9 10 /* 11 * Some gcc versions and/or configurations as found in the Zephyr SDK 12 * (questionably) define __INT32_TYPE__ and derivatives as a long int 13 * which makes the printf format checker to complain about long vs int 14 * mismatch when %u is given a uint32_t argument, and uint32_t pointers not 15 * being compatible with int pointers. Let's redefine them to follow 16 * common expectations and usage. 17 */ 18 19 /* 20 * If the compiler does not define __SIZEOF_INT__ deduce it from __INT_MAX__ 21 * or INT_MAX. 22 */ 23 #if !defined(__SIZEOF_INT__) 24 25 #if defined(__INT_MAX__) 26 /* GCC >= 3.3.0 has __<val>__ implicitly defined. */ 27 #define __Z_INT_MAX __INT_MAX__ 28 #else 29 /* Fall back to POSIX versions from <limits.h> */ 30 #define __Z_INT_MAX INT_MAX 31 #include <limits.h> 32 #endif 33 34 #if __Z_INT_MAX == 0x7fff 35 #define __SIZEOF_INT__ 2 36 #elif __Z_INT_MAX == 0x7fffffffL 37 #define __SIZEOF_INT__ 4 38 #elif __Z_INT_MAX > 0x7fffffffL 39 #define __SIZEOF_INT__ 8 40 #endif 41 42 #undef __Z_INT_MAX 43 44 #endif 45 46 #if __SIZEOF_INT__ != 4 47 #error "unexpected int width" 48 #endif 49 50 #undef __INT32_TYPE__ 51 #undef __UINT32_TYPE__ 52 #undef __INT_FAST32_TYPE__ 53 #undef __UINT_FAST32_TYPE__ 54 #undef __INT_LEAST32_TYPE__ 55 #undef __UINT_LEAST32_TYPE__ 56 #undef __INT64_TYPE__ 57 #undef __UINT64_TYPE__ 58 #undef __INT_FAST64_TYPE__ 59 #undef __UINT_FAST64_TYPE__ 60 #undef __INT_LEAST64_TYPE__ 61 #undef __UINT_LEAST64_TYPE__ 62 63 #define __INT32_TYPE__ int 64 #define __UINT32_TYPE__ unsigned int 65 #define __INT_FAST32_TYPE__ __INT32_TYPE__ 66 #define __UINT_FAST32_TYPE__ __UINT32_TYPE__ 67 #define __INT_LEAST32_TYPE__ __INT32_TYPE__ 68 #define __UINT_LEAST32_TYPE__ __UINT32_TYPE__ 69 #define __INT64_TYPE__ long long int 70 #define __UINT64_TYPE__ unsigned long long int 71 #define __INT_FAST64_TYPE__ __INT64_TYPE__ 72 #define __UINT_FAST64_TYPE__ __UINT64_TYPE__ 73 #define __INT_LEAST64_TYPE__ __INT64_TYPE__ 74 #define __UINT_LEAST64_TYPE__ __UINT64_TYPE__ 75 76 /* 77 * The confusion also exists with __INTPTR_TYPE__ which is either an int 78 * (even when __INT32_TYPE__ is a long int) or a long int. Let's redefine 79 * it to a long int to get some uniformity. Doing so also makes it compatible 80 * with LP64 (64-bit) targets where a long is always 64-bit wide. 81 */ 82 83 #if __SIZEOF_POINTER__ != __SIZEOF_LONG__ 84 #error "unexpected size difference between pointers and long ints" 85 #endif 86 87 #undef __INTPTR_TYPE__ 88 #undef __UINTPTR_TYPE__ 89 #define __INTPTR_TYPE__ long int 90 #define __UINTPTR_TYPE__ long unsigned int 91 92 /* 93 * Re-define the INTN_C(value) integer constant expression macros to match the 94 * integer types re-defined above. 95 */ 96 97 #undef __INT32_C 98 #undef __UINT32_C 99 #undef __INT64_C 100 #undef __UINT64_C 101 #define __INT32_C(c) c 102 #define __UINT32_C(c) c ## U 103 #define __INT64_C(c) c ## LL 104 #define __UINT64_C(c) c ## ULL 105 106 #endif /* ZEPHYR_INCLUDE_TOOLCHAIN_STDINT_H_ */ 107
