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[openssl.git] / 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