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1493 lines
29 KiB
1493 lines
29 KiB
// This file is generated from a similarly-named Perl script in the BoringSSL |
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// source tree. Do not edit by hand. |
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#if !defined(__has_feature) |
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#define __has_feature(x) 0 |
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#endif |
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#if __has_feature(memory_sanitizer) && !defined(OPENSSL_NO_ASM) |
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#define OPENSSL_NO_ASM |
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#endif |
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#if !defined(OPENSSL_NO_ASM) |
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#if defined(__arm__) |
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#if defined(BORINGSSL_PREFIX) |
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#include <boringssl_prefix_symbols_asm.h> |
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#endif |
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#include <openssl/arm_arch.h> |
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@ Silence ARMv8 deprecated IT instruction warnings. This file is used by both |
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@ ARMv7 and ARMv8 processors and does not use ARMv8 instructions. |
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.arch armv7-a |
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|
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.text |
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#if defined(__thumb2__) || defined(__clang__) |
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.syntax unified |
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#endif |
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#if defined(__thumb2__) |
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.thumb |
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#else |
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.code 32 |
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#endif |
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#if defined(__thumb2__) || defined(__clang__) |
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#define ldrhsb ldrbhs |
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#endif |
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.align 5 |
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.Lsigma: |
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.long 0x61707865,0x3320646e,0x79622d32,0x6b206574 @ endian-neutral |
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.Lone: |
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.long 1,0,0,0 |
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#if __ARM_MAX_ARCH__>=7 |
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.LOPENSSL_armcap: |
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.word OPENSSL_armcap_P-.LChaCha20_ctr32 |
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#else |
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.word -1 |
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#endif |
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.globl ChaCha20_ctr32 |
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.hidden ChaCha20_ctr32 |
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.type ChaCha20_ctr32,%function |
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.align 5 |
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ChaCha20_ctr32: |
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.LChaCha20_ctr32: |
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ldr r12,[sp,#0] @ pull pointer to counter and nonce |
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stmdb sp!,{r0,r1,r2,r4-r11,lr} |
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#if __ARM_ARCH__<7 && !defined(__thumb2__) |
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sub r14,pc,#16 @ ChaCha20_ctr32 |
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#else |
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adr r14,.LChaCha20_ctr32 |
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#endif |
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cmp r2,#0 @ len==0? |
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#ifdef __thumb2__ |
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itt eq |
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#endif |
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addeq sp,sp,#4*3 |
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beq .Lno_data |
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#if __ARM_MAX_ARCH__>=7 |
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cmp r2,#192 @ test len |
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bls .Lshort |
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ldr r4,[r14,#-32] |
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ldr r4,[r14,r4] |
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# ifdef __APPLE__ |
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ldr r4,[r4] |
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# endif |
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tst r4,#ARMV7_NEON |
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bne .LChaCha20_neon |
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.Lshort: |
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#endif |
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ldmia r12,{r4,r5,r6,r7} @ load counter and nonce |
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sub sp,sp,#4*(16) @ off-load area |
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sub r14,r14,#64 @ .Lsigma |
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stmdb sp!,{r4,r5,r6,r7} @ copy counter and nonce |
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ldmia r3,{r4,r5,r6,r7,r8,r9,r10,r11} @ load key |
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ldmia r14,{r0,r1,r2,r3} @ load sigma |
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stmdb sp!,{r4,r5,r6,r7,r8,r9,r10,r11} @ copy key |
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stmdb sp!,{r0,r1,r2,r3} @ copy sigma |
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str r10,[sp,#4*(16+10)] @ off-load "rx" |
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str r11,[sp,#4*(16+11)] @ off-load "rx" |
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b .Loop_outer_enter |
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|
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.align 4 |
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.Loop_outer: |
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ldmia sp,{r0,r1,r2,r3,r4,r5,r6,r7,r8,r9} @ load key material |
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str r11,[sp,#4*(32+2)] @ save len |
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str r12, [sp,#4*(32+1)] @ save inp |
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str r14, [sp,#4*(32+0)] @ save out |
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.Loop_outer_enter: |
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ldr r11, [sp,#4*(15)] |
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ldr r12,[sp,#4*(12)] @ modulo-scheduled load |
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ldr r10, [sp,#4*(13)] |
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ldr r14,[sp,#4*(14)] |
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str r11, [sp,#4*(16+15)] |
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mov r11,#10 |
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b .Loop |
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|
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.align 4 |
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.Loop: |
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subs r11,r11,#1 |
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add r0,r0,r4 |
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mov r12,r12,ror#16 |
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add r1,r1,r5 |
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mov r10,r10,ror#16 |
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eor r12,r12,r0,ror#16 |
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eor r10,r10,r1,ror#16 |
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add r8,r8,r12 |
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mov r4,r4,ror#20 |
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add r9,r9,r10 |
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mov r5,r5,ror#20 |
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eor r4,r4,r8,ror#20 |
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eor r5,r5,r9,ror#20 |
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add r0,r0,r4 |
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mov r12,r12,ror#24 |
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add r1,r1,r5 |
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mov r10,r10,ror#24 |
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eor r12,r12,r0,ror#24 |
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eor r10,r10,r1,ror#24 |
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add r8,r8,r12 |
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mov r4,r4,ror#25 |
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add r9,r9,r10 |
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mov r5,r5,ror#25 |
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str r10,[sp,#4*(16+13)] |
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ldr r10,[sp,#4*(16+15)] |
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eor r4,r4,r8,ror#25 |
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eor r5,r5,r9,ror#25 |
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str r8,[sp,#4*(16+8)] |
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ldr r8,[sp,#4*(16+10)] |
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add r2,r2,r6 |
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mov r14,r14,ror#16 |
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str r9,[sp,#4*(16+9)] |
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ldr r9,[sp,#4*(16+11)] |
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add r3,r3,r7 |
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mov r10,r10,ror#16 |
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eor r14,r14,r2,ror#16 |
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eor r10,r10,r3,ror#16 |
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add r8,r8,r14 |
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mov r6,r6,ror#20 |
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add r9,r9,r10 |
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mov r7,r7,ror#20 |
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eor r6,r6,r8,ror#20 |
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eor r7,r7,r9,ror#20 |
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add r2,r2,r6 |
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mov r14,r14,ror#24 |
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add r3,r3,r7 |
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mov r10,r10,ror#24 |
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eor r14,r14,r2,ror#24 |
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eor r10,r10,r3,ror#24 |
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add r8,r8,r14 |
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mov r6,r6,ror#25 |
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add r9,r9,r10 |
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mov r7,r7,ror#25 |
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eor r6,r6,r8,ror#25 |
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eor r7,r7,r9,ror#25 |
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add r0,r0,r5 |
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mov r10,r10,ror#16 |
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add r1,r1,r6 |
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mov r12,r12,ror#16 |
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eor r10,r10,r0,ror#16 |
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eor r12,r12,r1,ror#16 |
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add r8,r8,r10 |
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mov r5,r5,ror#20 |
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add r9,r9,r12 |
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mov r6,r6,ror#20 |
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eor r5,r5,r8,ror#20 |
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eor r6,r6,r9,ror#20 |
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add r0,r0,r5 |
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mov r10,r10,ror#24 |
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add r1,r1,r6 |
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mov r12,r12,ror#24 |
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eor r10,r10,r0,ror#24 |
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eor r12,r12,r1,ror#24 |
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add r8,r8,r10 |
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mov r5,r5,ror#25 |
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str r10,[sp,#4*(16+15)] |
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ldr r10,[sp,#4*(16+13)] |
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add r9,r9,r12 |
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mov r6,r6,ror#25 |
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eor r5,r5,r8,ror#25 |
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eor r6,r6,r9,ror#25 |
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str r8,[sp,#4*(16+10)] |
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ldr r8,[sp,#4*(16+8)] |
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add r2,r2,r7 |
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mov r10,r10,ror#16 |
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str r9,[sp,#4*(16+11)] |
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ldr r9,[sp,#4*(16+9)] |
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add r3,r3,r4 |
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mov r14,r14,ror#16 |
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eor r10,r10,r2,ror#16 |
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eor r14,r14,r3,ror#16 |
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add r8,r8,r10 |
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mov r7,r7,ror#20 |
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add r9,r9,r14 |
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mov r4,r4,ror#20 |
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eor r7,r7,r8,ror#20 |
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eor r4,r4,r9,ror#20 |
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add r2,r2,r7 |
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mov r10,r10,ror#24 |
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add r3,r3,r4 |
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mov r14,r14,ror#24 |
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eor r10,r10,r2,ror#24 |
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eor r14,r14,r3,ror#24 |
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add r8,r8,r10 |
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mov r7,r7,ror#25 |
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add r9,r9,r14 |
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mov r4,r4,ror#25 |
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eor r7,r7,r8,ror#25 |
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eor r4,r4,r9,ror#25 |
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bne .Loop |
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ldr r11,[sp,#4*(32+2)] @ load len |
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str r8, [sp,#4*(16+8)] @ modulo-scheduled store |
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str r9, [sp,#4*(16+9)] |
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str r12,[sp,#4*(16+12)] |
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str r10, [sp,#4*(16+13)] |
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str r14,[sp,#4*(16+14)] |
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@ at this point we have first half of 512-bit result in |
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@ rx and second half at sp+4*(16+8) |
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cmp r11,#64 @ done yet? |
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#ifdef __thumb2__ |
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itete lo |
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#endif |
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addlo r12,sp,#4*(0) @ shortcut or ... |
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ldrhs r12,[sp,#4*(32+1)] @ ... load inp |
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addlo r14,sp,#4*(0) @ shortcut or ... |
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ldrhs r14,[sp,#4*(32+0)] @ ... load out |
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ldr r8,[sp,#4*(0)] @ load key material |
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ldr r9,[sp,#4*(1)] |
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#if __ARM_ARCH__>=6 || !defined(__ARMEB__) |
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# if __ARM_ARCH__<7 |
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orr r10,r12,r14 |
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tst r10,#3 @ are input and output aligned? |
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ldr r10,[sp,#4*(2)] |
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bne .Lunaligned |
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cmp r11,#64 @ restore flags |
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# else |
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ldr r10,[sp,#4*(2)] |
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# endif |
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ldr r11,[sp,#4*(3)] |
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add r0,r0,r8 @ accumulate key material |
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add r1,r1,r9 |
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# ifdef __thumb2__ |
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itt hs |
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# endif |
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ldrhs r8,[r12],#16 @ load input |
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ldrhs r9,[r12,#-12] |
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add r2,r2,r10 |
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add r3,r3,r11 |
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# ifdef __thumb2__ |
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itt hs |
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# endif |
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ldrhs r10,[r12,#-8] |
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ldrhs r11,[r12,#-4] |
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# if __ARM_ARCH__>=6 && defined(__ARMEB__) |
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rev r0,r0 |
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rev r1,r1 |
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rev r2,r2 |
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rev r3,r3 |
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# endif |
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# ifdef __thumb2__ |
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itt hs |
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# endif |
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eorhs r0,r0,r8 @ xor with input |
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eorhs r1,r1,r9 |
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add r8,sp,#4*(4) |
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str r0,[r14],#16 @ store output |
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# ifdef __thumb2__ |
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itt hs |
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# endif |
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eorhs r2,r2,r10 |
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eorhs r3,r3,r11 |
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ldmia r8,{r8,r9,r10,r11} @ load key material |
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str r1,[r14,#-12] |
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str r2,[r14,#-8] |
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str r3,[r14,#-4] |
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|
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add r4,r4,r8 @ accumulate key material |
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add r5,r5,r9 |
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# ifdef __thumb2__ |
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itt hs |
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# endif |
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ldrhs r8,[r12],#16 @ load input |
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ldrhs r9,[r12,#-12] |
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add r6,r6,r10 |
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add r7,r7,r11 |
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# ifdef __thumb2__ |
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itt hs |
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# endif |
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ldrhs r10,[r12,#-8] |
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ldrhs r11,[r12,#-4] |
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# if __ARM_ARCH__>=6 && defined(__ARMEB__) |
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rev r4,r4 |
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rev r5,r5 |
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rev r6,r6 |
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rev r7,r7 |
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# endif |
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# ifdef __thumb2__ |
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itt hs |
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# endif |
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eorhs r4,r4,r8 |
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eorhs r5,r5,r9 |
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add r8,sp,#4*(8) |
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str r4,[r14],#16 @ store output |
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# ifdef __thumb2__ |
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itt hs |
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# endif |
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eorhs r6,r6,r10 |
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eorhs r7,r7,r11 |
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str r5,[r14,#-12] |
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ldmia r8,{r8,r9,r10,r11} @ load key material |
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str r6,[r14,#-8] |
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add r0,sp,#4*(16+8) |
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str r7,[r14,#-4] |
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|
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ldmia r0,{r0,r1,r2,r3,r4,r5,r6,r7} @ load second half |
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|
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add r0,r0,r8 @ accumulate key material |
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add r1,r1,r9 |
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# ifdef __thumb2__ |
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itt hs |
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# endif |
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ldrhs r8,[r12],#16 @ load input |
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ldrhs r9,[r12,#-12] |
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# ifdef __thumb2__ |
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itt hi |
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# endif |
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strhi r10,[sp,#4*(16+10)] @ copy "rx" while at it |
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strhi r11,[sp,#4*(16+11)] @ copy "rx" while at it |
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add r2,r2,r10 |
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add r3,r3,r11 |
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# ifdef __thumb2__ |
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itt hs |
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# endif |
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ldrhs r10,[r12,#-8] |
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ldrhs r11,[r12,#-4] |
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# if __ARM_ARCH__>=6 && defined(__ARMEB__) |
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rev r0,r0 |
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rev r1,r1 |
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rev r2,r2 |
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rev r3,r3 |
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# endif |
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# ifdef __thumb2__ |
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itt hs |
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# endif |
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eorhs r0,r0,r8 |
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eorhs r1,r1,r9 |
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add r8,sp,#4*(12) |
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str r0,[r14],#16 @ store output |
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# ifdef __thumb2__ |
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itt hs |
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# endif |
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eorhs r2,r2,r10 |
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eorhs r3,r3,r11 |
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str r1,[r14,#-12] |
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ldmia r8,{r8,r9,r10,r11} @ load key material |
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str r2,[r14,#-8] |
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str r3,[r14,#-4] |
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|
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add r4,r4,r8 @ accumulate key material |
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add r5,r5,r9 |
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# ifdef __thumb2__ |
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itt hi |
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# endif |
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addhi r8,r8,#1 @ next counter value |
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strhi r8,[sp,#4*(12)] @ save next counter value |
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# ifdef __thumb2__ |
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itt hs |
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# endif |
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ldrhs r8,[r12],#16 @ load input |
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ldrhs r9,[r12,#-12] |
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add r6,r6,r10 |
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add r7,r7,r11 |
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# ifdef __thumb2__ |
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itt hs |
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# endif |
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ldrhs r10,[r12,#-8] |
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ldrhs r11,[r12,#-4] |
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# if __ARM_ARCH__>=6 && defined(__ARMEB__) |
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rev r4,r4 |
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rev r5,r5 |
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rev r6,r6 |
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rev r7,r7 |
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# endif |
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# ifdef __thumb2__ |
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itt hs |
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# endif |
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eorhs r4,r4,r8 |
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eorhs r5,r5,r9 |
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# ifdef __thumb2__ |
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it ne |
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# endif |
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ldrne r8,[sp,#4*(32+2)] @ re-load len |
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# ifdef __thumb2__ |
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itt hs |
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# endif |
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eorhs r6,r6,r10 |
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eorhs r7,r7,r11 |
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str r4,[r14],#16 @ store output |
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str r5,[r14,#-12] |
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# ifdef __thumb2__ |
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it hs |
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# endif |
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subhs r11,r8,#64 @ len-=64 |
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str r6,[r14,#-8] |
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str r7,[r14,#-4] |
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bhi .Loop_outer |
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|
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beq .Ldone |
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# if __ARM_ARCH__<7 |
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b .Ltail |
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|
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.align 4 |
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.Lunaligned:@ unaligned endian-neutral path |
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cmp r11,#64 @ restore flags |
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# endif |
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#endif |
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#if __ARM_ARCH__<7 |
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ldr r11,[sp,#4*(3)] |
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add r0,r0,r8 @ accumulate key material |
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add r1,r1,r9 |
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add r2,r2,r10 |
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# ifdef __thumb2__ |
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itete lo |
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# endif |
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eorlo r8,r8,r8 @ zero or ... |
|
ldrhsb r8,[r12],#16 @ ... load input |
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eorlo r9,r9,r9 |
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ldrhsb r9,[r12,#-12] |
|
|
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add r3,r3,r11 |
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# ifdef __thumb2__ |
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itete lo |
|
# endif |
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eorlo r10,r10,r10 |
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ldrhsb r10,[r12,#-8] |
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eorlo r11,r11,r11 |
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ldrhsb r11,[r12,#-4] |
|
|
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eor r0,r8,r0 @ xor with input (or zero) |
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eor r1,r9,r1 |
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# ifdef __thumb2__ |
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itt hs |
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# endif |
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ldrhsb r8,[r12,#-15] @ load more input |
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ldrhsb r9,[r12,#-11] |
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eor r2,r10,r2 |
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strb r0,[r14],#16 @ store output |
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eor r3,r11,r3 |
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# ifdef __thumb2__ |
|
itt hs |
|
# endif |
|
ldrhsb r10,[r12,#-7] |
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ldrhsb r11,[r12,#-3] |
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strb r1,[r14,#-12] |
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eor r0,r8,r0,lsr#8 |
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strb r2,[r14,#-8] |
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eor r1,r9,r1,lsr#8 |
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# ifdef __thumb2__ |
|
itt hs |
|
# endif |
|
ldrhsb r8,[r12,#-14] @ load more input |
|
ldrhsb r9,[r12,#-10] |
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strb r3,[r14,#-4] |
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eor r2,r10,r2,lsr#8 |
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strb r0,[r14,#-15] |
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eor r3,r11,r3,lsr#8 |
|
# ifdef __thumb2__ |
|
itt hs |
|
# endif |
|
ldrhsb r10,[r12,#-6] |
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ldrhsb r11,[r12,#-2] |
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strb r1,[r14,#-11] |
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eor r0,r8,r0,lsr#8 |
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strb r2,[r14,#-7] |
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eor r1,r9,r1,lsr#8 |
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# ifdef __thumb2__ |
|
itt hs |
|
# endif |
|
ldrhsb r8,[r12,#-13] @ load more input |
|
ldrhsb r9,[r12,#-9] |
|
strb r3,[r14,#-3] |
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eor r2,r10,r2,lsr#8 |
|
strb r0,[r14,#-14] |
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eor r3,r11,r3,lsr#8 |
|
# ifdef __thumb2__ |
|
itt hs |
|
# endif |
|
ldrhsb r10,[r12,#-5] |
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ldrhsb r11,[r12,#-1] |
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strb r1,[r14,#-10] |
|
strb r2,[r14,#-6] |
|
eor r0,r8,r0,lsr#8 |
|
strb r3,[r14,#-2] |
|
eor r1,r9,r1,lsr#8 |
|
strb r0,[r14,#-13] |
|
eor r2,r10,r2,lsr#8 |
|
strb r1,[r14,#-9] |
|
eor r3,r11,r3,lsr#8 |
|
strb r2,[r14,#-5] |
|
strb r3,[r14,#-1] |
|
add r8,sp,#4*(4+0) |
|
ldmia r8,{r8,r9,r10,r11} @ load key material |
|
add r0,sp,#4*(16+8) |
|
add r4,r4,r8 @ accumulate key material |
|
add r5,r5,r9 |
|
add r6,r6,r10 |
|
# ifdef __thumb2__ |
|
itete lo |
|
# endif |
|
eorlo r8,r8,r8 @ zero or ... |
|
ldrhsb r8,[r12],#16 @ ... load input |
|
eorlo r9,r9,r9 |
|
ldrhsb r9,[r12,#-12] |
|
|
|
add r7,r7,r11 |
|
# ifdef __thumb2__ |
|
itete lo |
|
# endif |
|
eorlo r10,r10,r10 |
|
ldrhsb r10,[r12,#-8] |
|
eorlo r11,r11,r11 |
|
ldrhsb r11,[r12,#-4] |
|
|
|
eor r4,r8,r4 @ xor with input (or zero) |
|
eor r5,r9,r5 |
|
# ifdef __thumb2__ |
|
itt hs |
|
# endif |
|
ldrhsb r8,[r12,#-15] @ load more input |
|
ldrhsb r9,[r12,#-11] |
|
eor r6,r10,r6 |
|
strb r4,[r14],#16 @ store output |
|
eor r7,r11,r7 |
|
# ifdef __thumb2__ |
|
itt hs |
|
# endif |
|
ldrhsb r10,[r12,#-7] |
|
ldrhsb r11,[r12,#-3] |
|
strb r5,[r14,#-12] |
|
eor r4,r8,r4,lsr#8 |
|
strb r6,[r14,#-8] |
|
eor r5,r9,r5,lsr#8 |
|
# ifdef __thumb2__ |
|
itt hs |
|
# endif |
|
ldrhsb r8,[r12,#-14] @ load more input |
|
ldrhsb r9,[r12,#-10] |
|
strb r7,[r14,#-4] |
|
eor r6,r10,r6,lsr#8 |
|
strb r4,[r14,#-15] |
|
eor r7,r11,r7,lsr#8 |
|
# ifdef __thumb2__ |
|
itt hs |
|
# endif |
|
ldrhsb r10,[r12,#-6] |
|
ldrhsb r11,[r12,#-2] |
|
strb r5,[r14,#-11] |
|
eor r4,r8,r4,lsr#8 |
|
strb r6,[r14,#-7] |
|
eor r5,r9,r5,lsr#8 |
|
# ifdef __thumb2__ |
|
itt hs |
|
# endif |
|
ldrhsb r8,[r12,#-13] @ load more input |
|
ldrhsb r9,[r12,#-9] |
|
strb r7,[r14,#-3] |
|
eor r6,r10,r6,lsr#8 |
|
strb r4,[r14,#-14] |
|
eor r7,r11,r7,lsr#8 |
|
# ifdef __thumb2__ |
|
itt hs |
|
# endif |
|
ldrhsb r10,[r12,#-5] |
|
ldrhsb r11,[r12,#-1] |
|
strb r5,[r14,#-10] |
|
strb r6,[r14,#-6] |
|
eor r4,r8,r4,lsr#8 |
|
strb r7,[r14,#-2] |
|
eor r5,r9,r5,lsr#8 |
|
strb r4,[r14,#-13] |
|
eor r6,r10,r6,lsr#8 |
|
strb r5,[r14,#-9] |
|
eor r7,r11,r7,lsr#8 |
|
strb r6,[r14,#-5] |
|
strb r7,[r14,#-1] |
|
add r8,sp,#4*(4+4) |
|
ldmia r8,{r8,r9,r10,r11} @ load key material |
|
ldmia r0,{r0,r1,r2,r3,r4,r5,r6,r7} @ load second half |
|
# ifdef __thumb2__ |
|
itt hi |
|
# endif |
|
strhi r10,[sp,#4*(16+10)] @ copy "rx" |
|
strhi r11,[sp,#4*(16+11)] @ copy "rx" |
|
add r0,r0,r8 @ accumulate key material |
|
add r1,r1,r9 |
|
add r2,r2,r10 |
|
# ifdef __thumb2__ |
|
itete lo |
|
# endif |
|
eorlo r8,r8,r8 @ zero or ... |
|
ldrhsb r8,[r12],#16 @ ... load input |
|
eorlo r9,r9,r9 |
|
ldrhsb r9,[r12,#-12] |
|
|
|
add r3,r3,r11 |
|
# ifdef __thumb2__ |
|
itete lo |
|
# endif |
|
eorlo r10,r10,r10 |
|
ldrhsb r10,[r12,#-8] |
|
eorlo r11,r11,r11 |
|
ldrhsb r11,[r12,#-4] |
|
|
|
eor r0,r8,r0 @ xor with input (or zero) |
|
eor r1,r9,r1 |
|
# ifdef __thumb2__ |
|
itt hs |
|
# endif |
|
ldrhsb r8,[r12,#-15] @ load more input |
|
ldrhsb r9,[r12,#-11] |
|
eor r2,r10,r2 |
|
strb r0,[r14],#16 @ store output |
|
eor r3,r11,r3 |
|
# ifdef __thumb2__ |
|
itt hs |
|
# endif |
|
ldrhsb r10,[r12,#-7] |
|
ldrhsb r11,[r12,#-3] |
|
strb r1,[r14,#-12] |
|
eor r0,r8,r0,lsr#8 |
|
strb r2,[r14,#-8] |
|
eor r1,r9,r1,lsr#8 |
|
# ifdef __thumb2__ |
|
itt hs |
|
# endif |
|
ldrhsb r8,[r12,#-14] @ load more input |
|
ldrhsb r9,[r12,#-10] |
|
strb r3,[r14,#-4] |
|
eor r2,r10,r2,lsr#8 |
|
strb r0,[r14,#-15] |
|
eor r3,r11,r3,lsr#8 |
|
# ifdef __thumb2__ |
|
itt hs |
|
# endif |
|
ldrhsb r10,[r12,#-6] |
|
ldrhsb r11,[r12,#-2] |
|
strb r1,[r14,#-11] |
|
eor r0,r8,r0,lsr#8 |
|
strb r2,[r14,#-7] |
|
eor r1,r9,r1,lsr#8 |
|
# ifdef __thumb2__ |
|
itt hs |
|
# endif |
|
ldrhsb r8,[r12,#-13] @ load more input |
|
ldrhsb r9,[r12,#-9] |
|
strb r3,[r14,#-3] |
|
eor r2,r10,r2,lsr#8 |
|
strb r0,[r14,#-14] |
|
eor r3,r11,r3,lsr#8 |
|
# ifdef __thumb2__ |
|
itt hs |
|
# endif |
|
ldrhsb r10,[r12,#-5] |
|
ldrhsb r11,[r12,#-1] |
|
strb r1,[r14,#-10] |
|
strb r2,[r14,#-6] |
|
eor r0,r8,r0,lsr#8 |
|
strb r3,[r14,#-2] |
|
eor r1,r9,r1,lsr#8 |
|
strb r0,[r14,#-13] |
|
eor r2,r10,r2,lsr#8 |
|
strb r1,[r14,#-9] |
|
eor r3,r11,r3,lsr#8 |
|
strb r2,[r14,#-5] |
|
strb r3,[r14,#-1] |
|
add r8,sp,#4*(4+8) |
|
ldmia r8,{r8,r9,r10,r11} @ load key material |
|
add r4,r4,r8 @ accumulate key material |
|
# ifdef __thumb2__ |
|
itt hi |
|
# endif |
|
addhi r8,r8,#1 @ next counter value |
|
strhi r8,[sp,#4*(12)] @ save next counter value |
|
add r5,r5,r9 |
|
add r6,r6,r10 |
|
# ifdef __thumb2__ |
|
itete lo |
|
# endif |
|
eorlo r8,r8,r8 @ zero or ... |
|
ldrhsb r8,[r12],#16 @ ... load input |
|
eorlo r9,r9,r9 |
|
ldrhsb r9,[r12,#-12] |
|
|
|
add r7,r7,r11 |
|
# ifdef __thumb2__ |
|
itete lo |
|
# endif |
|
eorlo r10,r10,r10 |
|
ldrhsb r10,[r12,#-8] |
|
eorlo r11,r11,r11 |
|
ldrhsb r11,[r12,#-4] |
|
|
|
eor r4,r8,r4 @ xor with input (or zero) |
|
eor r5,r9,r5 |
|
# ifdef __thumb2__ |
|
itt hs |
|
# endif |
|
ldrhsb r8,[r12,#-15] @ load more input |
|
ldrhsb r9,[r12,#-11] |
|
eor r6,r10,r6 |
|
strb r4,[r14],#16 @ store output |
|
eor r7,r11,r7 |
|
# ifdef __thumb2__ |
|
itt hs |
|
# endif |
|
ldrhsb r10,[r12,#-7] |
|
ldrhsb r11,[r12,#-3] |
|
strb r5,[r14,#-12] |
|
eor r4,r8,r4,lsr#8 |
|
strb r6,[r14,#-8] |
|
eor r5,r9,r5,lsr#8 |
|
# ifdef __thumb2__ |
|
itt hs |
|
# endif |
|
ldrhsb r8,[r12,#-14] @ load more input |
|
ldrhsb r9,[r12,#-10] |
|
strb r7,[r14,#-4] |
|
eor r6,r10,r6,lsr#8 |
|
strb r4,[r14,#-15] |
|
eor r7,r11,r7,lsr#8 |
|
# ifdef __thumb2__ |
|
itt hs |
|
# endif |
|
ldrhsb r10,[r12,#-6] |
|
ldrhsb r11,[r12,#-2] |
|
strb r5,[r14,#-11] |
|
eor r4,r8,r4,lsr#8 |
|
strb r6,[r14,#-7] |
|
eor r5,r9,r5,lsr#8 |
|
# ifdef __thumb2__ |
|
itt hs |
|
# endif |
|
ldrhsb r8,[r12,#-13] @ load more input |
|
ldrhsb r9,[r12,#-9] |
|
strb r7,[r14,#-3] |
|
eor r6,r10,r6,lsr#8 |
|
strb r4,[r14,#-14] |
|
eor r7,r11,r7,lsr#8 |
|
# ifdef __thumb2__ |
|
itt hs |
|
# endif |
|
ldrhsb r10,[r12,#-5] |
|
ldrhsb r11,[r12,#-1] |
|
strb r5,[r14,#-10] |
|
strb r6,[r14,#-6] |
|
eor r4,r8,r4,lsr#8 |
|
strb r7,[r14,#-2] |
|
eor r5,r9,r5,lsr#8 |
|
strb r4,[r14,#-13] |
|
eor r6,r10,r6,lsr#8 |
|
strb r5,[r14,#-9] |
|
eor r7,r11,r7,lsr#8 |
|
strb r6,[r14,#-5] |
|
strb r7,[r14,#-1] |
|
# ifdef __thumb2__ |
|
it ne |
|
# endif |
|
ldrne r8,[sp,#4*(32+2)] @ re-load len |
|
# ifdef __thumb2__ |
|
it hs |
|
# endif |
|
subhs r11,r8,#64 @ len-=64 |
|
bhi .Loop_outer |
|
|
|
beq .Ldone |
|
#endif |
|
|
|
.Ltail: |
|
ldr r12,[sp,#4*(32+1)] @ load inp |
|
add r9,sp,#4*(0) |
|
ldr r14,[sp,#4*(32+0)] @ load out |
|
|
|
.Loop_tail: |
|
ldrb r10,[r9],#1 @ read buffer on stack |
|
ldrb r11,[r12],#1 @ read input |
|
subs r8,r8,#1 |
|
eor r11,r11,r10 |
|
strb r11,[r14],#1 @ store output |
|
bne .Loop_tail |
|
|
|
.Ldone: |
|
add sp,sp,#4*(32+3) |
|
.Lno_data: |
|
ldmia sp!,{r4,r5,r6,r7,r8,r9,r10,r11,pc} |
|
.size ChaCha20_ctr32,.-ChaCha20_ctr32 |
|
#if __ARM_MAX_ARCH__>=7 |
|
.arch armv7-a |
|
.fpu neon |
|
|
|
.type ChaCha20_neon,%function |
|
.align 5 |
|
ChaCha20_neon: |
|
ldr r12,[sp,#0] @ pull pointer to counter and nonce |
|
stmdb sp!,{r0,r1,r2,r4-r11,lr} |
|
.LChaCha20_neon: |
|
adr r14,.Lsigma |
|
vstmdb sp!,{d8,d9,d10,d11,d12,d13,d14,d15} @ ABI spec says so |
|
stmdb sp!,{r0,r1,r2,r3} |
|
|
|
vld1.32 {q1,q2},[r3] @ load key |
|
ldmia r3,{r4,r5,r6,r7,r8,r9,r10,r11} @ load key |
|
|
|
sub sp,sp,#4*(16+16) |
|
vld1.32 {q3},[r12] @ load counter and nonce |
|
add r12,sp,#4*8 |
|
ldmia r14,{r0,r1,r2,r3} @ load sigma |
|
vld1.32 {q0},[r14]! @ load sigma |
|
vld1.32 {q12},[r14] @ one |
|
vst1.32 {q2,q3},[r12] @ copy 1/2key|counter|nonce |
|
vst1.32 {q0,q1},[sp] @ copy sigma|1/2key |
|
|
|
str r10,[sp,#4*(16+10)] @ off-load "rx" |
|
str r11,[sp,#4*(16+11)] @ off-load "rx" |
|
vshl.i32 d26,d24,#1 @ two |
|
vstr d24,[sp,#4*(16+0)] |
|
vshl.i32 d28,d24,#2 @ four |
|
vstr d26,[sp,#4*(16+2)] |
|
vmov q4,q0 |
|
vstr d28,[sp,#4*(16+4)] |
|
vmov q8,q0 |
|
vmov q5,q1 |
|
vmov q9,q1 |
|
b .Loop_neon_enter |
|
|
|
.align 4 |
|
.Loop_neon_outer: |
|
ldmia sp,{r0,r1,r2,r3,r4,r5,r6,r7,r8,r9} @ load key material |
|
cmp r11,#64*2 @ if len<=64*2 |
|
bls .Lbreak_neon @ switch to integer-only |
|
vmov q4,q0 |
|
str r11,[sp,#4*(32+2)] @ save len |
|
vmov q8,q0 |
|
str r12, [sp,#4*(32+1)] @ save inp |
|
vmov q5,q1 |
|
str r14, [sp,#4*(32+0)] @ save out |
|
vmov q9,q1 |
|
.Loop_neon_enter: |
|
ldr r11, [sp,#4*(15)] |
|
vadd.i32 q7,q3,q12 @ counter+1 |
|
ldr r12,[sp,#4*(12)] @ modulo-scheduled load |
|
vmov q6,q2 |
|
ldr r10, [sp,#4*(13)] |
|
vmov q10,q2 |
|
ldr r14,[sp,#4*(14)] |
|
vadd.i32 q11,q7,q12 @ counter+2 |
|
str r11, [sp,#4*(16+15)] |
|
mov r11,#10 |
|
add r12,r12,#3 @ counter+3 |
|
b .Loop_neon |
|
|
|
.align 4 |
|
.Loop_neon: |
|
subs r11,r11,#1 |
|
vadd.i32 q0,q0,q1 |
|
add r0,r0,r4 |
|
vadd.i32 q4,q4,q5 |
|
mov r12,r12,ror#16 |
|
vadd.i32 q8,q8,q9 |
|
add r1,r1,r5 |
|
veor q3,q3,q0 |
|
mov r10,r10,ror#16 |
|
veor q7,q7,q4 |
|
eor r12,r12,r0,ror#16 |
|
veor q11,q11,q8 |
|
eor r10,r10,r1,ror#16 |
|
vrev32.16 q3,q3 |
|
add r8,r8,r12 |
|
vrev32.16 q7,q7 |
|
mov r4,r4,ror#20 |
|
vrev32.16 q11,q11 |
|
add r9,r9,r10 |
|
vadd.i32 q2,q2,q3 |
|
mov r5,r5,ror#20 |
|
vadd.i32 q6,q6,q7 |
|
eor r4,r4,r8,ror#20 |
|
vadd.i32 q10,q10,q11 |
|
eor r5,r5,r9,ror#20 |
|
veor q12,q1,q2 |
|
add r0,r0,r4 |
|
veor q13,q5,q6 |
|
mov r12,r12,ror#24 |
|
veor q14,q9,q10 |
|
add r1,r1,r5 |
|
vshr.u32 q1,q12,#20 |
|
mov r10,r10,ror#24 |
|
vshr.u32 q5,q13,#20 |
|
eor r12,r12,r0,ror#24 |
|
vshr.u32 q9,q14,#20 |
|
eor r10,r10,r1,ror#24 |
|
vsli.32 q1,q12,#12 |
|
add r8,r8,r12 |
|
vsli.32 q5,q13,#12 |
|
mov r4,r4,ror#25 |
|
vsli.32 q9,q14,#12 |
|
add r9,r9,r10 |
|
vadd.i32 q0,q0,q1 |
|
mov r5,r5,ror#25 |
|
vadd.i32 q4,q4,q5 |
|
str r10,[sp,#4*(16+13)] |
|
vadd.i32 q8,q8,q9 |
|
ldr r10,[sp,#4*(16+15)] |
|
veor q12,q3,q0 |
|
eor r4,r4,r8,ror#25 |
|
veor q13,q7,q4 |
|
eor r5,r5,r9,ror#25 |
|
veor q14,q11,q8 |
|
str r8,[sp,#4*(16+8)] |
|
vshr.u32 q3,q12,#24 |
|
ldr r8,[sp,#4*(16+10)] |
|
vshr.u32 q7,q13,#24 |
|
add r2,r2,r6 |
|
vshr.u32 q11,q14,#24 |
|
mov r14,r14,ror#16 |
|
vsli.32 q3,q12,#8 |
|
str r9,[sp,#4*(16+9)] |
|
vsli.32 q7,q13,#8 |
|
ldr r9,[sp,#4*(16+11)] |
|
vsli.32 q11,q14,#8 |
|
add r3,r3,r7 |
|
vadd.i32 q2,q2,q3 |
|
mov r10,r10,ror#16 |
|
vadd.i32 q6,q6,q7 |
|
eor r14,r14,r2,ror#16 |
|
vadd.i32 q10,q10,q11 |
|
eor r10,r10,r3,ror#16 |
|
veor q12,q1,q2 |
|
add r8,r8,r14 |
|
veor q13,q5,q6 |
|
mov r6,r6,ror#20 |
|
veor q14,q9,q10 |
|
add r9,r9,r10 |
|
vshr.u32 q1,q12,#25 |
|
mov r7,r7,ror#20 |
|
vshr.u32 q5,q13,#25 |
|
eor r6,r6,r8,ror#20 |
|
vshr.u32 q9,q14,#25 |
|
eor r7,r7,r9,ror#20 |
|
vsli.32 q1,q12,#7 |
|
add r2,r2,r6 |
|
vsli.32 q5,q13,#7 |
|
mov r14,r14,ror#24 |
|
vsli.32 q9,q14,#7 |
|
add r3,r3,r7 |
|
vext.8 q2,q2,q2,#8 |
|
mov r10,r10,ror#24 |
|
vext.8 q6,q6,q6,#8 |
|
eor r14,r14,r2,ror#24 |
|
vext.8 q10,q10,q10,#8 |
|
eor r10,r10,r3,ror#24 |
|
vext.8 q1,q1,q1,#4 |
|
add r8,r8,r14 |
|
vext.8 q5,q5,q5,#4 |
|
mov r6,r6,ror#25 |
|
vext.8 q9,q9,q9,#4 |
|
add r9,r9,r10 |
|
vext.8 q3,q3,q3,#12 |
|
mov r7,r7,ror#25 |
|
vext.8 q7,q7,q7,#12 |
|
eor r6,r6,r8,ror#25 |
|
vext.8 q11,q11,q11,#12 |
|
eor r7,r7,r9,ror#25 |
|
vadd.i32 q0,q0,q1 |
|
add r0,r0,r5 |
|
vadd.i32 q4,q4,q5 |
|
mov r10,r10,ror#16 |
|
vadd.i32 q8,q8,q9 |
|
add r1,r1,r6 |
|
veor q3,q3,q0 |
|
mov r12,r12,ror#16 |
|
veor q7,q7,q4 |
|
eor r10,r10,r0,ror#16 |
|
veor q11,q11,q8 |
|
eor r12,r12,r1,ror#16 |
|
vrev32.16 q3,q3 |
|
add r8,r8,r10 |
|
vrev32.16 q7,q7 |
|
mov r5,r5,ror#20 |
|
vrev32.16 q11,q11 |
|
add r9,r9,r12 |
|
vadd.i32 q2,q2,q3 |
|
mov r6,r6,ror#20 |
|
vadd.i32 q6,q6,q7 |
|
eor r5,r5,r8,ror#20 |
|
vadd.i32 q10,q10,q11 |
|
eor r6,r6,r9,ror#20 |
|
veor q12,q1,q2 |
|
add r0,r0,r5 |
|
veor q13,q5,q6 |
|
mov r10,r10,ror#24 |
|
veor q14,q9,q10 |
|
add r1,r1,r6 |
|
vshr.u32 q1,q12,#20 |
|
mov r12,r12,ror#24 |
|
vshr.u32 q5,q13,#20 |
|
eor r10,r10,r0,ror#24 |
|
vshr.u32 q9,q14,#20 |
|
eor r12,r12,r1,ror#24 |
|
vsli.32 q1,q12,#12 |
|
add r8,r8,r10 |
|
vsli.32 q5,q13,#12 |
|
mov r5,r5,ror#25 |
|
vsli.32 q9,q14,#12 |
|
str r10,[sp,#4*(16+15)] |
|
vadd.i32 q0,q0,q1 |
|
ldr r10,[sp,#4*(16+13)] |
|
vadd.i32 q4,q4,q5 |
|
add r9,r9,r12 |
|
vadd.i32 q8,q8,q9 |
|
mov r6,r6,ror#25 |
|
veor q12,q3,q0 |
|
eor r5,r5,r8,ror#25 |
|
veor q13,q7,q4 |
|
eor r6,r6,r9,ror#25 |
|
veor q14,q11,q8 |
|
str r8,[sp,#4*(16+10)] |
|
vshr.u32 q3,q12,#24 |
|
ldr r8,[sp,#4*(16+8)] |
|
vshr.u32 q7,q13,#24 |
|
add r2,r2,r7 |
|
vshr.u32 q11,q14,#24 |
|
mov r10,r10,ror#16 |
|
vsli.32 q3,q12,#8 |
|
str r9,[sp,#4*(16+11)] |
|
vsli.32 q7,q13,#8 |
|
ldr r9,[sp,#4*(16+9)] |
|
vsli.32 q11,q14,#8 |
|
add r3,r3,r4 |
|
vadd.i32 q2,q2,q3 |
|
mov r14,r14,ror#16 |
|
vadd.i32 q6,q6,q7 |
|
eor r10,r10,r2,ror#16 |
|
vadd.i32 q10,q10,q11 |
|
eor r14,r14,r3,ror#16 |
|
veor q12,q1,q2 |
|
add r8,r8,r10 |
|
veor q13,q5,q6 |
|
mov r7,r7,ror#20 |
|
veor q14,q9,q10 |
|
add r9,r9,r14 |
|
vshr.u32 q1,q12,#25 |
|
mov r4,r4,ror#20 |
|
vshr.u32 q5,q13,#25 |
|
eor r7,r7,r8,ror#20 |
|
vshr.u32 q9,q14,#25 |
|
eor r4,r4,r9,ror#20 |
|
vsli.32 q1,q12,#7 |
|
add r2,r2,r7 |
|
vsli.32 q5,q13,#7 |
|
mov r10,r10,ror#24 |
|
vsli.32 q9,q14,#7 |
|
add r3,r3,r4 |
|
vext.8 q2,q2,q2,#8 |
|
mov r14,r14,ror#24 |
|
vext.8 q6,q6,q6,#8 |
|
eor r10,r10,r2,ror#24 |
|
vext.8 q10,q10,q10,#8 |
|
eor r14,r14,r3,ror#24 |
|
vext.8 q1,q1,q1,#12 |
|
add r8,r8,r10 |
|
vext.8 q5,q5,q5,#12 |
|
mov r7,r7,ror#25 |
|
vext.8 q9,q9,q9,#12 |
|
add r9,r9,r14 |
|
vext.8 q3,q3,q3,#4 |
|
mov r4,r4,ror#25 |
|
vext.8 q7,q7,q7,#4 |
|
eor r7,r7,r8,ror#25 |
|
vext.8 q11,q11,q11,#4 |
|
eor r4,r4,r9,ror#25 |
|
bne .Loop_neon |
|
|
|
add r11,sp,#32 |
|
vld1.32 {q12,q13},[sp] @ load key material |
|
vld1.32 {q14,q15},[r11] |
|
|
|
ldr r11,[sp,#4*(32+2)] @ load len |
|
|
|
str r8, [sp,#4*(16+8)] @ modulo-scheduled store |
|
str r9, [sp,#4*(16+9)] |
|
str r12,[sp,#4*(16+12)] |
|
str r10, [sp,#4*(16+13)] |
|
str r14,[sp,#4*(16+14)] |
|
|
|
@ at this point we have first half of 512-bit result in |
|
@ rx and second half at sp+4*(16+8) |
|
|
|
ldr r12,[sp,#4*(32+1)] @ load inp |
|
ldr r14,[sp,#4*(32+0)] @ load out |
|
|
|
vadd.i32 q0,q0,q12 @ accumulate key material |
|
vadd.i32 q4,q4,q12 |
|
vadd.i32 q8,q8,q12 |
|
vldr d24,[sp,#4*(16+0)] @ one |
|
|
|
vadd.i32 q1,q1,q13 |
|
vadd.i32 q5,q5,q13 |
|
vadd.i32 q9,q9,q13 |
|
vldr d26,[sp,#4*(16+2)] @ two |
|
|
|
vadd.i32 q2,q2,q14 |
|
vadd.i32 q6,q6,q14 |
|
vadd.i32 q10,q10,q14 |
|
vadd.i32 d14,d14,d24 @ counter+1 |
|
vadd.i32 d22,d22,d26 @ counter+2 |
|
|
|
vadd.i32 q3,q3,q15 |
|
vadd.i32 q7,q7,q15 |
|
vadd.i32 q11,q11,q15 |
|
|
|
cmp r11,#64*4 |
|
blo .Ltail_neon |
|
|
|
vld1.8 {q12,q13},[r12]! @ load input |
|
mov r11,sp |
|
vld1.8 {q14,q15},[r12]! |
|
veor q0,q0,q12 @ xor with input |
|
veor q1,q1,q13 |
|
vld1.8 {q12,q13},[r12]! |
|
veor q2,q2,q14 |
|
veor q3,q3,q15 |
|
vld1.8 {q14,q15},[r12]! |
|
|
|
veor q4,q4,q12 |
|
vst1.8 {q0,q1},[r14]! @ store output |
|
veor q5,q5,q13 |
|
vld1.8 {q12,q13},[r12]! |
|
veor q6,q6,q14 |
|
vst1.8 {q2,q3},[r14]! |
|
veor q7,q7,q15 |
|
vld1.8 {q14,q15},[r12]! |
|
|
|
veor q8,q8,q12 |
|
vld1.32 {q0,q1},[r11]! @ load for next iteration |
|
veor d25,d25,d25 |
|
vldr d24,[sp,#4*(16+4)] @ four |
|
veor q9,q9,q13 |
|
vld1.32 {q2,q3},[r11] |
|
veor q10,q10,q14 |
|
vst1.8 {q4,q5},[r14]! |
|
veor q11,q11,q15 |
|
vst1.8 {q6,q7},[r14]! |
|
|
|
vadd.i32 d6,d6,d24 @ next counter value |
|
vldr d24,[sp,#4*(16+0)] @ one |
|
|
|
ldmia sp,{r8,r9,r10,r11} @ load key material |
|
add r0,r0,r8 @ accumulate key material |
|
ldr r8,[r12],#16 @ load input |
|
vst1.8 {q8,q9},[r14]! |
|
add r1,r1,r9 |
|
ldr r9,[r12,#-12] |
|
vst1.8 {q10,q11},[r14]! |
|
add r2,r2,r10 |
|
ldr r10,[r12,#-8] |
|
add r3,r3,r11 |
|
ldr r11,[r12,#-4] |
|
# ifdef __ARMEB__ |
|
rev r0,r0 |
|
rev r1,r1 |
|
rev r2,r2 |
|
rev r3,r3 |
|
# endif |
|
eor r0,r0,r8 @ xor with input |
|
add r8,sp,#4*(4) |
|
eor r1,r1,r9 |
|
str r0,[r14],#16 @ store output |
|
eor r2,r2,r10 |
|
str r1,[r14,#-12] |
|
eor r3,r3,r11 |
|
ldmia r8,{r8,r9,r10,r11} @ load key material |
|
str r2,[r14,#-8] |
|
str r3,[r14,#-4] |
|
|
|
add r4,r4,r8 @ accumulate key material |
|
ldr r8,[r12],#16 @ load input |
|
add r5,r5,r9 |
|
ldr r9,[r12,#-12] |
|
add r6,r6,r10 |
|
ldr r10,[r12,#-8] |
|
add r7,r7,r11 |
|
ldr r11,[r12,#-4] |
|
# ifdef __ARMEB__ |
|
rev r4,r4 |
|
rev r5,r5 |
|
rev r6,r6 |
|
rev r7,r7 |
|
# endif |
|
eor r4,r4,r8 |
|
add r8,sp,#4*(8) |
|
eor r5,r5,r9 |
|
str r4,[r14],#16 @ store output |
|
eor r6,r6,r10 |
|
str r5,[r14,#-12] |
|
eor r7,r7,r11 |
|
ldmia r8,{r8,r9,r10,r11} @ load key material |
|
str r6,[r14,#-8] |
|
add r0,sp,#4*(16+8) |
|
str r7,[r14,#-4] |
|
|
|
ldmia r0,{r0,r1,r2,r3,r4,r5,r6,r7} @ load second half |
|
|
|
add r0,r0,r8 @ accumulate key material |
|
ldr r8,[r12],#16 @ load input |
|
add r1,r1,r9 |
|
ldr r9,[r12,#-12] |
|
# ifdef __thumb2__ |
|
it hi |
|
# endif |
|
strhi r10,[sp,#4*(16+10)] @ copy "rx" while at it |
|
add r2,r2,r10 |
|
ldr r10,[r12,#-8] |
|
# ifdef __thumb2__ |
|
it hi |
|
# endif |
|
strhi r11,[sp,#4*(16+11)] @ copy "rx" while at it |
|
add r3,r3,r11 |
|
ldr r11,[r12,#-4] |
|
# ifdef __ARMEB__ |
|
rev r0,r0 |
|
rev r1,r1 |
|
rev r2,r2 |
|
rev r3,r3 |
|
# endif |
|
eor r0,r0,r8 |
|
add r8,sp,#4*(12) |
|
eor r1,r1,r9 |
|
str r0,[r14],#16 @ store output |
|
eor r2,r2,r10 |
|
str r1,[r14,#-12] |
|
eor r3,r3,r11 |
|
ldmia r8,{r8,r9,r10,r11} @ load key material |
|
str r2,[r14,#-8] |
|
str r3,[r14,#-4] |
|
|
|
add r4,r4,r8 @ accumulate key material |
|
add r8,r8,#4 @ next counter value |
|
add r5,r5,r9 |
|
str r8,[sp,#4*(12)] @ save next counter value |
|
ldr r8,[r12],#16 @ load input |
|
add r6,r6,r10 |
|
add r4,r4,#3 @ counter+3 |
|
ldr r9,[r12,#-12] |
|
add r7,r7,r11 |
|
ldr r10,[r12,#-8] |
|
ldr r11,[r12,#-4] |
|
# ifdef __ARMEB__ |
|
rev r4,r4 |
|
rev r5,r5 |
|
rev r6,r6 |
|
rev r7,r7 |
|
# endif |
|
eor r4,r4,r8 |
|
# ifdef __thumb2__ |
|
it hi |
|
# endif |
|
ldrhi r8,[sp,#4*(32+2)] @ re-load len |
|
eor r5,r5,r9 |
|
eor r6,r6,r10 |
|
str r4,[r14],#16 @ store output |
|
eor r7,r7,r11 |
|
str r5,[r14,#-12] |
|
sub r11,r8,#64*4 @ len-=64*4 |
|
str r6,[r14,#-8] |
|
str r7,[r14,#-4] |
|
bhi .Loop_neon_outer |
|
|
|
b .Ldone_neon |
|
|
|
.align 4 |
|
.Lbreak_neon: |
|
@ harmonize NEON and integer-only stack frames: load data |
|
@ from NEON frame, but save to integer-only one; distance |
|
@ between the two is 4*(32+4+16-32)=4*(20). |
|
|
|
str r11, [sp,#4*(20+32+2)] @ save len |
|
add r11,sp,#4*(32+4) |
|
str r12, [sp,#4*(20+32+1)] @ save inp |
|
str r14, [sp,#4*(20+32+0)] @ save out |
|
|
|
ldr r12,[sp,#4*(16+10)] |
|
ldr r14,[sp,#4*(16+11)] |
|
vldmia r11,{d8,d9,d10,d11,d12,d13,d14,d15} @ fulfill ABI requirement |
|
str r12,[sp,#4*(20+16+10)] @ copy "rx" |
|
str r14,[sp,#4*(20+16+11)] @ copy "rx" |
|
|
|
ldr r11, [sp,#4*(15)] |
|
ldr r12,[sp,#4*(12)] @ modulo-scheduled load |
|
ldr r10, [sp,#4*(13)] |
|
ldr r14,[sp,#4*(14)] |
|
str r11, [sp,#4*(20+16+15)] |
|
add r11,sp,#4*(20) |
|
vst1.32 {q0,q1},[r11]! @ copy key |
|
add sp,sp,#4*(20) @ switch frame |
|
vst1.32 {q2,q3},[r11] |
|
mov r11,#10 |
|
b .Loop @ go integer-only |
|
|
|
.align 4 |
|
.Ltail_neon: |
|
cmp r11,#64*3 |
|
bhs .L192_or_more_neon |
|
cmp r11,#64*2 |
|
bhs .L128_or_more_neon |
|
cmp r11,#64*1 |
|
bhs .L64_or_more_neon |
|
|
|
add r8,sp,#4*(8) |
|
vst1.8 {q0,q1},[sp] |
|
add r10,sp,#4*(0) |
|
vst1.8 {q2,q3},[r8] |
|
b .Loop_tail_neon |
|
|
|
.align 4 |
|
.L64_or_more_neon: |
|
vld1.8 {q12,q13},[r12]! |
|
vld1.8 {q14,q15},[r12]! |
|
veor q0,q0,q12 |
|
veor q1,q1,q13 |
|
veor q2,q2,q14 |
|
veor q3,q3,q15 |
|
vst1.8 {q0,q1},[r14]! |
|
vst1.8 {q2,q3},[r14]! |
|
|
|
beq .Ldone_neon |
|
|
|
add r8,sp,#4*(8) |
|
vst1.8 {q4,q5},[sp] |
|
add r10,sp,#4*(0) |
|
vst1.8 {q6,q7},[r8] |
|
sub r11,r11,#64*1 @ len-=64*1 |
|
b .Loop_tail_neon |
|
|
|
.align 4 |
|
.L128_or_more_neon: |
|
vld1.8 {q12,q13},[r12]! |
|
vld1.8 {q14,q15},[r12]! |
|
veor q0,q0,q12 |
|
veor q1,q1,q13 |
|
vld1.8 {q12,q13},[r12]! |
|
veor q2,q2,q14 |
|
veor q3,q3,q15 |
|
vld1.8 {q14,q15},[r12]! |
|
|
|
veor q4,q4,q12 |
|
veor q5,q5,q13 |
|
vst1.8 {q0,q1},[r14]! |
|
veor q6,q6,q14 |
|
vst1.8 {q2,q3},[r14]! |
|
veor q7,q7,q15 |
|
vst1.8 {q4,q5},[r14]! |
|
vst1.8 {q6,q7},[r14]! |
|
|
|
beq .Ldone_neon |
|
|
|
add r8,sp,#4*(8) |
|
vst1.8 {q8,q9},[sp] |
|
add r10,sp,#4*(0) |
|
vst1.8 {q10,q11},[r8] |
|
sub r11,r11,#64*2 @ len-=64*2 |
|
b .Loop_tail_neon |
|
|
|
.align 4 |
|
.L192_or_more_neon: |
|
vld1.8 {q12,q13},[r12]! |
|
vld1.8 {q14,q15},[r12]! |
|
veor q0,q0,q12 |
|
veor q1,q1,q13 |
|
vld1.8 {q12,q13},[r12]! |
|
veor q2,q2,q14 |
|
veor q3,q3,q15 |
|
vld1.8 {q14,q15},[r12]! |
|
|
|
veor q4,q4,q12 |
|
veor q5,q5,q13 |
|
vld1.8 {q12,q13},[r12]! |
|
veor q6,q6,q14 |
|
vst1.8 {q0,q1},[r14]! |
|
veor q7,q7,q15 |
|
vld1.8 {q14,q15},[r12]! |
|
|
|
veor q8,q8,q12 |
|
vst1.8 {q2,q3},[r14]! |
|
veor q9,q9,q13 |
|
vst1.8 {q4,q5},[r14]! |
|
veor q10,q10,q14 |
|
vst1.8 {q6,q7},[r14]! |
|
veor q11,q11,q15 |
|
vst1.8 {q8,q9},[r14]! |
|
vst1.8 {q10,q11},[r14]! |
|
|
|
beq .Ldone_neon |
|
|
|
ldmia sp,{r8,r9,r10,r11} @ load key material |
|
add r0,r0,r8 @ accumulate key material |
|
add r8,sp,#4*(4) |
|
add r1,r1,r9 |
|
add r2,r2,r10 |
|
add r3,r3,r11 |
|
ldmia r8,{r8,r9,r10,r11} @ load key material |
|
|
|
add r4,r4,r8 @ accumulate key material |
|
add r8,sp,#4*(8) |
|
add r5,r5,r9 |
|
add r6,r6,r10 |
|
add r7,r7,r11 |
|
ldmia r8,{r8,r9,r10,r11} @ load key material |
|
# ifdef __ARMEB__ |
|
rev r0,r0 |
|
rev r1,r1 |
|
rev r2,r2 |
|
rev r3,r3 |
|
rev r4,r4 |
|
rev r5,r5 |
|
rev r6,r6 |
|
rev r7,r7 |
|
# endif |
|
stmia sp,{r0,r1,r2,r3,r4,r5,r6,r7} |
|
add r0,sp,#4*(16+8) |
|
|
|
ldmia r0,{r0,r1,r2,r3,r4,r5,r6,r7} @ load second half |
|
|
|
add r0,r0,r8 @ accumulate key material |
|
add r8,sp,#4*(12) |
|
add r1,r1,r9 |
|
add r2,r2,r10 |
|
add r3,r3,r11 |
|
ldmia r8,{r8,r9,r10,r11} @ load key material |
|
|
|
add r4,r4,r8 @ accumulate key material |
|
add r8,sp,#4*(8) |
|
add r5,r5,r9 |
|
add r4,r4,#3 @ counter+3 |
|
add r6,r6,r10 |
|
add r7,r7,r11 |
|
ldr r11,[sp,#4*(32+2)] @ re-load len |
|
# ifdef __ARMEB__ |
|
rev r0,r0 |
|
rev r1,r1 |
|
rev r2,r2 |
|
rev r3,r3 |
|
rev r4,r4 |
|
rev r5,r5 |
|
rev r6,r6 |
|
rev r7,r7 |
|
# endif |
|
stmia r8,{r0,r1,r2,r3,r4,r5,r6,r7} |
|
add r10,sp,#4*(0) |
|
sub r11,r11,#64*3 @ len-=64*3 |
|
|
|
.Loop_tail_neon: |
|
ldrb r8,[r10],#1 @ read buffer on stack |
|
ldrb r9,[r12],#1 @ read input |
|
subs r11,r11,#1 |
|
eor r8,r8,r9 |
|
strb r8,[r14],#1 @ store output |
|
bne .Loop_tail_neon |
|
|
|
.Ldone_neon: |
|
add sp,sp,#4*(32+4) |
|
vldmia sp,{d8,d9,d10,d11,d12,d13,d14,d15} |
|
add sp,sp,#4*(16+3) |
|
ldmia sp!,{r4,r5,r6,r7,r8,r9,r10,r11,pc} |
|
.size ChaCha20_neon,.-ChaCha20_neon |
|
.comm OPENSSL_armcap_P,4,4 |
|
#endif |
|
#endif |
|
#endif // !OPENSSL_NO_ASM |
|
.section .note.GNU-stack,"",%progbits
|
|
|