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- #include "arm_arch.h"
- .text
- .arch armv8-a+crypto
- .align 5
- .globl _armv7_neon_probe
- .type _armv7_neon_probe,%function
- _armv7_neon_probe:
- orr v15.16b, v15.16b, v15.16b
- ret
- .size _armv7_neon_probe,.-_armv7_neon_probe
- .globl _armv7_tick
- .type _armv7_tick,%function
- _armv7_tick:
- #ifdef __APPLE__
- mrs x0, CNTPCT_EL0
- #else
- mrs x0, CNTVCT_EL0
- #endif
- ret
- .size _armv7_tick,.-_armv7_tick
- .globl _armv8_aes_probe
- .type _armv8_aes_probe,%function
- _armv8_aes_probe:
- aese v0.16b, v0.16b
- ret
- .size _armv8_aes_probe,.-_armv8_aes_probe
- .globl _armv8_sha1_probe
- .type _armv8_sha1_probe,%function
- _armv8_sha1_probe:
- sha1h s0, s0
- ret
- .size _armv8_sha1_probe,.-_armv8_sha1_probe
- .globl _armv8_sha256_probe
- .type _armv8_sha256_probe,%function
- _armv8_sha256_probe:
- sha256su0 v0.4s, v0.4s
- ret
- .size _armv8_sha256_probe,.-_armv8_sha256_probe
- .globl _armv8_pmull_probe
- .type _armv8_pmull_probe,%function
- _armv8_pmull_probe:
- pmull v0.1q, v0.1d, v0.1d
- ret
- .size _armv8_pmull_probe,.-_armv8_pmull_probe
- .globl _armv8_sha512_probe
- .type _armv8_sha512_probe,%function
- _armv8_sha512_probe:
- .long 0xcec08000 // sha512su0 v0.2d,v0.2d
- ret
- .size _armv8_sha512_probe,.-_armv8_sha512_probe
- .globl OPENSSL_cleanse
- .type OPENSSL_cleanse,%function
- .align 5
- OPENSSL_cleanse:
- cbz x1,.Lret // len==0?
- cmp x1,#15
- b.hi .Lot // len>15
- nop
- .Little:
- strb wzr,[x0],#1 // store byte-by-byte
- subs x1,x1,#1
- b.ne .Little
- .Lret: ret
- .align 4
- .Lot: tst x0,#7
- b.eq .Laligned // inp is aligned
- strb wzr,[x0],#1 // store byte-by-byte
- sub x1,x1,#1
- b .Lot
- .align 4
- .Laligned:
- str xzr,[x0],#8 // store word-by-word
- sub x1,x1,#8
- tst x1,#-8
- b.ne .Laligned // len>=8
- cbnz x1,.Little // len!=0?
- ret
- .size OPENSSL_cleanse,.-OPENSSL_cleanse
- .globl CRYPTO_memcmp
- .type CRYPTO_memcmp,%function
- .align 4
- CRYPTO_memcmp:
- eor w3,w3,w3
- cbz x2,.Lno_data // len==0?
- cmp x2,#16
- b.ne .Loop_cmp
- ldp x8,x9,[x0]
- ldp x10,x11,[x1]
- eor x8,x8,x10
- eor x9,x9,x11
- orr x8,x8,x9
- mov x0,#1
- cmp x8,#0
- csel x0,xzr,x0,eq
- ret
- .align 4
- .Loop_cmp:
- ldrb w4,[x0],#1
- ldrb w5,[x1],#1
- eor w4,w4,w5
- orr w3,w3,w4
- subs x2,x2,#1
- b.ne .Loop_cmp
- .Lno_data:
- neg w0,w3
- lsr w0,w0,#31
- ret
- .size CRYPTO_memcmp,.-CRYPTO_memcmp
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