1 /*! 2 * \copy 3 * Copyright (c) 2013, Cisco Systems 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * * Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 13 * * Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 22 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 24 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 26 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 28 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 * 31 */ 32 33 #ifndef ___LD_ST_MACROS___ 34 #define ___LD_ST_MACROS___ 35 36 #include <string.h> 37 #include "typedefs.h" 38 39 #ifdef __GNUC__ 40 41 struct tagUnaligned_64 { 42 uint64_t l; 43 } __attribute__ ((packed)) __attribute__ ((may_alias)); 44 struct tagUnaligned_32 { 45 uint32_t l; 46 } __attribute__ ((packed)) __attribute__ ((may_alias)); 47 struct tagUnaligned_16 { 48 uint16_t l; 49 } __attribute__ ((packed)) __attribute__ ((may_alias)); 50 51 #define LD16(a) (((struct tagUnaligned_16 *) (a))->l) 52 #define LD32(a) (((struct tagUnaligned_32 *) (a))->l) 53 #define LD64(a) (((struct tagUnaligned_64 *) (a))->l) 54 55 #define STRUCTA(size, align) struct tagUnaligned_##size##_##align {\ 56 uint##size##_t l; \ 57 } __attribute__ ((aligned(align))) __attribute__ ((may_alias)) 58 STRUCTA (16, 2); 59 STRUCTA (32, 2); 60 STRUCTA (32, 4); 61 STRUCTA (64, 2); 62 STRUCTA (64, 4); 63 STRUCTA (64, 8); 64 //#define _USE_STRUCT_INT_CVT 65 //#ifdef _USE_STRUCT_INT_CVT 66 #define ST16(a, b) (((struct tagUnaligned_16 *) (a))->l) = (b) 67 #define ST32(a, b) (((struct tagUnaligned_32 *) (a))->l) = (b) 68 #define ST64(a, b) (((struct tagUnaligned_64 *) (a))->l) = (b) 69 70 #define LDA(a, size, align) (((struct tagUnaligned_##size##_##align *) (a))->l) 71 #define STA(a, b, size, align) (((struct tagUnaligned_##size##_##align *) (a))->l) = (b) 72 #define LD16A2(a) LDA(a, 16, 2) 73 #define LD32A2(a) LDA(a, 32, 2) 74 #define LD32A4(a) LDA(a, 32, 4) 75 #define LD64A2(a) LDA(a, 64, 2) 76 #define LD64A4(a) LDA(a, 64, 4) 77 #define LD64A8(a) LDA(a, 64, 8) 78 #define ST16A2(a, b) STA(a, b, 16, 2) 79 #define ST32A2(a, b) STA(a, b, 32, 2) 80 #define ST32A4(a, b) STA(a, b, 32, 4) 81 #define ST64A2(a, b) STA(a, b, 64, 2) 82 #define ST64A4(a, b) STA(a, b, 64, 4) 83 #define ST64A8(a, b) STA(a, b, 64, 8) 84 //#else 85 //inline void __ST16(void *dst, uint16_t v) { memcpy(dst, &v, 2); } 86 //inline void __ST32(void *dst, uint32_t v) { memcpy(dst, &v, 4); } 87 //inline void __ST64(void *dst, uint64_t v) { memcpy(dst, &v, 8); } 88 //#endif 89 90 #else 91 92 //#define INTD16(a) (*((int16_t*)(a))) 93 //#define INTD32(a) (*((int32_t*)(a))) 94 //#define INTD64(a) (*((int64_t*)(a))) 95 96 #define LD16(a) (*((uint16_t*)(a))) 97 #define LD32(a) (*((uint32_t*)(a))) 98 #define LD64(a) (*((uint64_t*)(a))) 99 100 #define ST16(a, b) *((uint16_t*)(a)) = (b) 101 #define ST32(a, b) *((uint32_t*)(a)) = (b) 102 #define ST64(a, b) *((uint64_t*)(a)) = (b) 103 #define LD16A2 LD16 104 #define LD32A2 LD32 105 #define LD32A4 LD32 106 #define LD64A2 LD64 107 #define LD64A4 LD64 108 #define LD64A8 LD64 109 #define ST16A2 ST16 110 #define ST32A2 ST32 111 #define ST32A4 ST32 112 #define ST64A2 ST64 113 #define ST64A4 ST64 114 #define ST64A8 ST64 115 116 #endif /* !__GNUC__ */ 117 118 #ifndef INTD16 119 #define INTD16 LD16 120 #endif//INTD16 121 122 #ifndef INTD32 123 #define INTD32 LD32 124 #endif//INTD32 125 126 #ifndef INTD64 127 #define INTD64 LD64 128 #endif//INTD64 129 130 #endif//___LD_ST_MACROS___ 131