1 /* 2 * Copyright (c) 2014 ARM Ltd 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. The name of the company may not be used to endorse or promote 14 * products derived from this software without specific prior written 15 * permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 22 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 23 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 24 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 25 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 26 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef __ARM_ARCH 30 31 /* ACLE standardises a set of pre-defines that describe the ARM architecture. 32 These were mostly implemented in GCC around GCC-4.8; older versions 33 have no, or only partial support. To provide a level of backwards 34 compatibility we try to work out what the definitions should be, given 35 the older pre-defines that GCC did produce. This isn't complete, but 36 it should be enough for use by routines that depend on this header. */ 37 38 /* No need to handle ARMv8, GCC had ACLE support before that. */ 39 40 # ifdef __ARM_ARCH_7__ 41 /* The common subset of ARMv7 in all profiles. */ 42 # define __ARM_ARCH 7 43 # define __ARM_ARCH_ISA_THUMB 2 44 # define __ARM_FEATURE_CLZ 45 # define __ARM_FEATURE_LDREX 7 46 # define __ARM_FEATURE_UNALIGNED 47 # endif 48 49 # if defined (__ARM_ARCH_7A__) || defined (__ARM_ARCH_7R__) 50 # define __ARM_ARCH 7 51 # define __ARM_ARCH_ISA_THUMB 2 52 # define __ARM_ARCH_ISA_ARM 53 # define __ARM_FEATURE_CLZ 54 # define __ARM_FEATURE_SIMD32 55 # define __ARM_FEATURE_DSP 56 # define __ARM_FEATURE_QBIT 57 # define __ARM_FEATURE_SAT 58 # define __ARM_FEATURE_LDREX 15 59 # define __ARM_FEATURE_UNALIGNED 60 # ifdef __ARM_ARCH_7A__ 61 # define __ARM_ARCH_PROFILE 'A' 62 # else 63 # define __ARM_ARCH_PROFILE 'R' 64 # endif 65 # endif 66 67 # ifdef __ARM_ARCH_7EM__ 68 # define __ARM_ARCH 7 69 # define __ARM_ARCH_ISA_THUMB 2 70 # define __ARM_FEATURE_CLZ 71 # define __ARM_FEATURE_SIMD32 72 # define __ARM_FEATURE_DSP 73 # define __ARM_FEATURE_QBIT 74 # define __ARM_FEATURE_SAT 75 # define __ARM_FEATURE_LDREX 7 76 # define __ARM_FEATURE_UNALIGNED 77 # define __ARM_ARCH_PROFILE 'M' 78 # endif 79 80 # ifdef __ARM_ARCH_7M__ 81 # define __ARM_ARCH 7 82 # define __ARM_ARCH_ISA_THUMB 2 83 # define __ARM_FEATURE_CLZ 84 # define __ARM_FEATURE_QBIT 85 # define __ARM_FEATURE_SAT 86 # define __ARM_FEATURE_LDREX 7 87 # define __ARM_FEATURE_UNALIGNED 88 # define __ARM_ARCH_PROFILE 'M' 89 # endif 90 91 # ifdef __ARM_ARCH_6T2__ 92 # define __ARM_ARCH 6 93 # define __ARM_ARCH_ISA_THUMB 2 94 # define __ARM_ARCH_ISA_ARM 95 # define __ARM_FEATURE_CLZ 96 # define __ARM_FEATURE_SIMD32 97 # define __ARM_FEATURE_DSP 98 # define __ARM_FEATURE_QBIT 99 # define __ARM_FEATURE_SAT 100 # define __ARM_FEATURE_LDREX 4 101 # define __ARM_FEATURE_UNALIGNED 102 # endif 103 104 # ifdef __ARM_ARCH_6M__ 105 # define __ARM_ARCH 6 106 # define __ARM_ARCH_ISA_THUMB 1 107 # define __ARM_ARCH_PROFILE 'M' 108 # endif 109 110 # if defined (__ARM_ARCH_6__) || defined (__ARM_ARCH_6J__) \ 111 || defined (__ARM_ARCH_6K__) || defined (__ARM_ARCH_6Z__) \ 112 || defined (__ARM_ARCH_6ZK__) 113 # define __ARM_ARCH 6 114 # define __ARM_ARCH_ISA_THUMB 1 115 # define __ARM_ARCH_ISA_ARM 116 # define __ARM_FEATURE_CLZ 117 # define __ARM_FEATURE_SIMD32 118 # define __ARM_FEATURE_DSP 119 # define __ARM_FEATURE_QBIT 120 # define __ARM_FEATURE_SAT 121 # define __ARM_FEATURE_UNALIGNED 122 # ifndef __thumb__ 123 # if defined (__ARM_ARCH_6K__) || defined (__ARM_ARCH_6ZK__) 124 # define __ARM_FEATURE_LDREX 15 125 # else 126 # define __ARM_FEATURE_LDREX 4 127 # endif 128 # endif 129 # endif 130 131 # if defined (__ARM_ARCH_5TE__) || defined (__ARM_ARCH_5E__) 132 # define __ARM_ARCH 5 133 # define __ARM_ARCH_ISA_ARM 134 # ifdef __ARM_ARCH_5TE__ 135 # define __ARM_ARCH_ISA_THUMB 1 136 # endif 137 # define __ARM_FEATURE_CLZ 138 # define __ARM_FEATURE_DSP 139 # endif 140 141 # if defined (__ARM_ARCH_5T__) || defined (__ARM_ARCH_5__) 142 # define __ARM_ARCH 5 143 # define __ARM_ARCH_ISA_ARM 144 # ifdef __ARM_ARCH_5TE__ 145 # define __ARM_ARCH_ISA_THUMB 1 146 # endif 147 # define __ARM_FEATURE_CLZ 148 # endif 149 150 # ifdef __ARM_ARCH_4T__ 151 # define __ARM_ARCH 4 152 # define __ARM_ARCH_ISA_ARM 153 # define __ARM_ARCH_ISA_THUMB 1 154 # endif 155 156 # ifdef __ARM_ARCH_4__ 157 # define __ARM_ARCH 4 158 # define __ARM_ARCH_ISA_ARM 159 # endif 160 161 # if defined (__ARM_ARCH_3__) || defined (__ARM_ARCH_3M__) 162 # define __ARM_ARCH 3 163 # define __ARM_ARCH_ISA_ARM 164 # endif 165 166 # ifdef __ARM_ARCH_2__ 167 # define __ARM_ARCH 2 168 # define __ARM_ARCH_ISA_ARM 169 # endif 170 171 # ifdef __ARMEB__ 172 # define __ARM_BIG_ENDIAN 173 # endif 174 175 /* If we still don't know what the target architecture is, then we're 176 probably not using GCC. */ 177 # ifndef __ARM_ARCH 178 # error Unable to determine architecture version. 179 # endif 180 181 #endif /* __ARM_ARCH */ 182 183