crypto/arm_arch.h

   1 /*
   2  * Copyright 2011-2018 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL license (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #ifndef __ARM_ARCH_H__
  11 # define __ARM_ARCH_H__
  12
  13 # if !defined(__ARM_ARCH__)
  14 #  if defined(__CC_ARM)
  15 #   define __ARM_ARCH__ __TARGET_ARCH_ARM
  16 #   if defined(__BIG_ENDIAN)
  17 #    define __ARMEB__
  18 #   else
  19 #    define __ARMEL__
  20 #   endif
  21 #  elif defined(__GNUC__)
  22 #   if   defined(__aarch64__)
  23 #    define __ARM_ARCH__ 8
  24 #    if __BYTE_ORDER__==__ORDER_BIG_ENDIAN__
  25 #     define __ARMEB__
  26 #    else
  27 #     define __ARMEL__
  28 #    endif
  29   /*
  30    * Why doesn't gcc define __ARM_ARCH__? Instead it defines
  31    * bunch of below macros. See all_architectures[] table in
  32    * gcc/config/arm/arm.c. On a side note it defines
  33    * __ARMEL__/__ARMEB__ for little-/big-endian.
  34    */
  35 #   elif defined(__ARM_ARCH)
  36 #    define __ARM_ARCH__ __ARM_ARCH
  37 #   elif defined(__ARM_ARCH_8A__)
  38 #    define __ARM_ARCH__ 8
  39 #   elif defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__)     || \
  40         defined(__ARM_ARCH_7R__)|| defined(__ARM_ARCH_7M__)     || \
  41         defined(__ARM_ARCH_7EM__)
  42 #    define __ARM_ARCH__ 7
  43 #   elif defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__)     || \
  44         defined(__ARM_ARCH_6K__)|| defined(__ARM_ARCH_6M__)     || \
  45         defined(__ARM_ARCH_6Z__)|| defined(__ARM_ARCH_6ZK__)    || \
  46         defined(__ARM_ARCH_6T2__)
  47 #    define __ARM_ARCH__ 6
  48 #   elif defined(__ARM_ARCH_5__) || defined(__ARM_ARCH_5T__)     || \
  49         defined(__ARM_ARCH_5E__)|| defined(__ARM_ARCH_5TE__)    || \
  50         defined(__ARM_ARCH_5TEJ__)
  51 #    define __ARM_ARCH__ 5
  52 #   elif defined(__ARM_ARCH_4__) || defined(__ARM_ARCH_4T__)
  53 #    define __ARM_ARCH__ 4
  54 #   else
  55 #    error "unsupported ARM architecture"
  56 #   endif
  57 #  endif
  58 # endif
  59
  60 # if !defined(__ARM_MAX_ARCH__)
  61 #  define __ARM_MAX_ARCH__ __ARM_ARCH__
  62 # endif
  63
  64 # if __ARM_MAX_ARCH__<__ARM_ARCH__
  65 #  error "__ARM_MAX_ARCH__ can't be less than __ARM_ARCH__"
  66 # elif __ARM_MAX_ARCH__!=__ARM_ARCH__
  67 #  if __ARM_ARCH__<7 && __ARM_MAX_ARCH__>=7 && defined(__ARMEB__)
  68 #   error "can't build universal big-endian binary"
  69 #  endif
  70 # endif
  71
  72 # if !__ASSEMBLER__
  73 extern unsigned int OPENSSL_armcap_P;
  74 # endif
  75
  76 # define ARMV7_NEON      (1<<0)
  77 # define ARMV7_TICK      (1<<1)
  78 # define ARMV8_AES       (1<<2)
  79 # define ARMV8_SHA1      (1<<3)
  80 # define ARMV8_SHA256    (1<<4)
  81 # define ARMV8_PMULL     (1<<5)
  82 # define ARMV8_SHA512    (1<<6)
  83
  84 #endif