1 | #! /usr/bin/env perl
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2 | # Copyright 2015-2020 The OpenSSL Project Authors. All Rights Reserved.
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3 | #
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4 | # Licensed under the OpenSSL license (the "License"). You may not use
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5 | # this file except in compliance with the License. You can obtain a copy
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6 | # in the file LICENSE in the source distribution or at
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7 | # https://www.openssl.org/source/license.html
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8 |
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9 |
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10 | $flavour = shift;
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11 | $output = shift;
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12 |
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13 | $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
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14 | ( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or
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15 | ( $xlate="${dir}perlasm/arm-xlate.pl" and -f $xlate) or
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16 | die "can't locate arm-xlate.pl";
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17 |
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18 | open OUT,"| \"$^X\" $xlate $flavour $output";
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19 | *STDOUT=*OUT;
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20 |
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21 | $code.=<<___;
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22 | #include "arm_arch.h"
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23 |
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24 | .text
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25 | .arch armv8-a+crypto
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26 |
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27 | .align 5
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28 | .globl _armv7_neon_probe
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29 | .type _armv7_neon_probe,%function
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30 | _armv7_neon_probe:
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31 | orr v15.16b, v15.16b, v15.16b
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32 | ret
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33 | .size _armv7_neon_probe,.-_armv7_neon_probe
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34 |
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35 | .globl _armv7_tick
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36 | .type _armv7_tick,%function
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37 | _armv7_tick:
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38 | #ifdef __APPLE__
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39 | mrs x0, CNTPCT_EL0
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40 | #else
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41 | mrs x0, CNTVCT_EL0
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42 | #endif
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43 | ret
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44 | .size _armv7_tick,.-_armv7_tick
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45 |
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46 | .globl _armv8_aes_probe
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47 | .type _armv8_aes_probe,%function
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48 | _armv8_aes_probe:
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49 | aese v0.16b, v0.16b
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50 | ret
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51 | .size _armv8_aes_probe,.-_armv8_aes_probe
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52 |
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53 | .globl _armv8_sha1_probe
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54 | .type _armv8_sha1_probe,%function
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55 | _armv8_sha1_probe:
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56 | sha1h s0, s0
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57 | ret
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58 | .size _armv8_sha1_probe,.-_armv8_sha1_probe
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59 |
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60 | .globl _armv8_sha256_probe
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61 | .type _armv8_sha256_probe,%function
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62 | _armv8_sha256_probe:
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63 | sha256su0 v0.4s, v0.4s
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64 | ret
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65 | .size _armv8_sha256_probe,.-_armv8_sha256_probe
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66 |
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67 | .globl _armv8_pmull_probe
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68 | .type _armv8_pmull_probe,%function
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69 | _armv8_pmull_probe:
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70 | pmull v0.1q, v0.1d, v0.1d
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71 | ret
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72 | .size _armv8_pmull_probe,.-_armv8_pmull_probe
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73 |
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74 | .globl _armv8_sha512_probe
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75 | .type _armv8_sha512_probe,%function
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76 | _armv8_sha512_probe:
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77 | .long 0xcec08000 // sha512su0 v0.2d,v0.2d
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78 | ret
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79 | .size _armv8_sha512_probe,.-_armv8_sha512_probe
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80 |
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81 | .globl OPENSSL_cleanse
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82 | .type OPENSSL_cleanse,%function
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83 | .align 5
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84 | OPENSSL_cleanse:
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85 | cbz x1,.Lret // len==0?
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86 | cmp x1,#15
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87 | b.hi .Lot // len>15
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88 | nop
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89 | .Little:
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90 | strb wzr,[x0],#1 // store byte-by-byte
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91 | subs x1,x1,#1
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92 | b.ne .Little
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93 | .Lret: ret
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94 |
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95 | .align 4
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96 | .Lot: tst x0,#7
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97 | b.eq .Laligned // inp is aligned
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98 | strb wzr,[x0],#1 // store byte-by-byte
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99 | sub x1,x1,#1
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100 | b .Lot
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101 |
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102 | .align 4
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103 | .Laligned:
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104 | str xzr,[x0],#8 // store word-by-word
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105 | sub x1,x1,#8
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106 | tst x1,#-8
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107 | b.ne .Laligned // len>=8
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108 | cbnz x1,.Little // len!=0?
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109 | ret
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110 | .size OPENSSL_cleanse,.-OPENSSL_cleanse
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111 |
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112 | .globl CRYPTO_memcmp
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113 | .type CRYPTO_memcmp,%function
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114 | .align 4
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115 | CRYPTO_memcmp:
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116 | eor w3,w3,w3
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117 | cbz x2,.Lno_data // len==0?
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118 | cmp x2,#16
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119 | b.ne .Loop_cmp
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120 | ldp x8,x9,[x0]
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121 | ldp x10,x11,[x1]
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122 | eor x8,x8,x10
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123 | eor x9,x9,x11
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124 | orr x8,x8,x9
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125 | mov x0,#1
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126 | cmp x8,#0
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127 | csel x0,xzr,x0,eq
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128 | ret
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129 |
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130 | .align 4
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131 | .Loop_cmp:
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132 | ldrb w4,[x0],#1
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133 | ldrb w5,[x1],#1
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134 | eor w4,w4,w5
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135 | orr w3,w3,w4
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136 | subs x2,x2,#1
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137 | b.ne .Loop_cmp
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138 |
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139 | .Lno_data:
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140 | neg w0,w3
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141 | lsr w0,w0,#31
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142 | ret
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143 | .size CRYPTO_memcmp,.-CRYPTO_memcmp
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144 | ___
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145 |
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146 | print $code;
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147 | close STDOUT or die "error closing STDOUT: $!";
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