sys/crypto/openssl/aarch64/arm64cpuid.S

   1 /* $FreeBSD$ */
   2 /* Do not modify. This file is auto-generated from arm64cpuid.pl. */
   3 #include "arm_arch.h"
   4
   5 .text
   6 .arch   armv8-a+crypto
   7
   8 .align  5
   9 .globl  _armv7_neon_probe
  10 .type   _armv7_neon_probe,%function
  11 _armv7_neon_probe:
  12         orr     v15.16b, v15.16b, v15.16b
  13         ret
  14 .size   _armv7_neon_probe,.-_armv7_neon_probe
  15
  16 .globl  _armv7_tick
  17 .type   _armv7_tick,%function
  18 _armv7_tick:
  19 #ifdef  __APPLE__
  20         mrs     x0, CNTPCT_EL0
  21 #else
  22         mrs     x0, CNTVCT_EL0
  23 #endif
  24         ret
  25 .size   _armv7_tick,.-_armv7_tick
  26
  27 .globl  _armv8_aes_probe
  28 .type   _armv8_aes_probe,%function
  29 _armv8_aes_probe:
  30         aese    v0.16b, v0.16b
  31         ret
  32 .size   _armv8_aes_probe,.-_armv8_aes_probe
  33
  34 .globl  _armv8_sha1_probe
  35 .type   _armv8_sha1_probe,%function
  36 _armv8_sha1_probe:
  37         sha1h   s0, s0
  38         ret
  39 .size   _armv8_sha1_probe,.-_armv8_sha1_probe
  40
  41 .globl  _armv8_sha256_probe
  42 .type   _armv8_sha256_probe,%function
  43 _armv8_sha256_probe:
  44         sha256su0       v0.4s, v0.4s
  45         ret
  46 .size   _armv8_sha256_probe,.-_armv8_sha256_probe
  47
  48 .globl  _armv8_pmull_probe
  49 .type   _armv8_pmull_probe,%function
  50 _armv8_pmull_probe:
  51         pmull   v0.1q, v0.1d, v0.1d
  52         ret
  53 .size   _armv8_pmull_probe,.-_armv8_pmull_probe
  54
  55 .globl  _armv8_sha512_probe
  56 .type   _armv8_sha512_probe,%function
  57 _armv8_sha512_probe:
  58 .long   0xcec08000      // sha512su0    v0.2d,v0.2d
  59         ret
  60 .size   _armv8_sha512_probe,.-_armv8_sha512_probe
  61
  62 .globl  OPENSSL_cleanse
  63 .type   OPENSSL_cleanse,%function
  64 .align  5
  65 OPENSSL_cleanse:
  66         cbz     x1,.Lret        // len==0?
  67         cmp     x1,#15
  68         b.hi    .Lot            // len>15
  69         nop
  70 .Little:
  71         strb    wzr,[x0],#1     // store byte-by-byte
  72         subs    x1,x1,#1
  73         b.ne    .Little
  74 .Lret:  ret
  75
  76 .align  4
  77 .Lot:   tst     x0,#7
  78         b.eq    .Laligned       // inp is aligned
  79         strb    wzr,[x0],#1     // store byte-by-byte
  80         sub     x1,x1,#1
  81         b       .Lot
  82
  83 .align  4
  84 .Laligned:
  85         str     xzr,[x0],#8     // store word-by-word
  86         sub     x1,x1,#8
  87         tst     x1,#-8
  88         b.ne    .Laligned       // len>=8
  89         cbnz    x1,.Little      // len!=0?
  90         ret
  91 .size   OPENSSL_cleanse,.-OPENSSL_cleanse
  92
  93 .globl  CRYPTO_memcmp
  94 .type   CRYPTO_memcmp,%function
  95 .align  4
  96 CRYPTO_memcmp:
  97         eor     w3,w3,w3
  98         cbz     x2,.Lno_data    // len==0?
  99         cmp     x2,#16
 100         b.ne    .Loop_cmp
 101         ldp     x8,x9,[x0]
 102         ldp     x10,x11,[x1]
 103         eor     x8,x8,x10
 104         eor     x9,x9,x11
 105         orr     x8,x8,x9
 106         mov     x0,#1
 107         cmp     x8,#0
 108         csel    x0,xzr,x0,eq
 109         ret
 110
 111 .align  4
 112 .Loop_cmp:
 113         ldrb    w4,[x0],#1
 114         ldrb    w5,[x1],#1
 115         eor     w4,w4,w5
 116         orr     w3,w3,w4
 117         subs    x2,x2,#1
 118         b.ne    .Loop_cmp
 119
 120 .Lno_data:
 121         neg     w0,w3
 122         lsr     w0,w0,#31
 123         ret
 124 .size   CRYPTO_memcmp,.-CRYPTO_memcmp