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Unified Diff: openssl/crypto/modes/asm/ghash-armv4.S

Issue 2072073002: Delete bundled copy of OpenSSL and replace with README. (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master
Patch Set: Delete bundled copy of OpenSSL and replace with README. Created 4 years, 6 months ago
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Index: openssl/crypto/modes/asm/ghash-armv4.S
diff --git a/openssl/crypto/modes/asm/ghash-armv4.S b/openssl/crypto/modes/asm/ghash-armv4.S
deleted file mode 100644
index d66c4cbf628e11fe410b0f09ce6c659fa2151223..0000000000000000000000000000000000000000
--- a/openssl/crypto/modes/asm/ghash-armv4.S
+++ /dev/null
@@ -1,408 +0,0 @@
-#include "arm_arch.h"
-
-.text
-.code 32
-
-.type rem_4bit,%object
-.align 5
-rem_4bit:
-.short 0x0000,0x1C20,0x3840,0x2460
-.short 0x7080,0x6CA0,0x48C0,0x54E0
-.short 0xE100,0xFD20,0xD940,0xC560
-.short 0x9180,0x8DA0,0xA9C0,0xB5E0
-.size rem_4bit,.-rem_4bit
-
-.type rem_4bit_get,%function
-rem_4bit_get:
- sub r2,pc,#8
- sub r2,r2,#32 @ &rem_4bit
- b .Lrem_4bit_got
- nop
-.size rem_4bit_get,.-rem_4bit_get
-
-.global gcm_ghash_4bit
-.type gcm_ghash_4bit,%function
-gcm_ghash_4bit:
- sub r12,pc,#8
- add r3,r2,r3 @ r3 to point at the end
- stmdb sp!,{r3-r11,lr} @ save r3/end too
- sub r12,r12,#48 @ &rem_4bit
-
- ldmia r12,{r4-r11} @ copy rem_4bit ...
- stmdb sp!,{r4-r11} @ ... to stack
-
- ldrb r12,[r2,#15]
- ldrb r14,[r0,#15]
-.Louter:
- eor r12,r12,r14
- and r14,r12,#0xf0
- and r12,r12,#0x0f
- mov r3,#14
-
- add r7,r1,r12,lsl#4
- ldmia r7,{r4-r7} @ load Htbl[nlo]
- add r11,r1,r14
- ldrb r12,[r2,#14]
-
- and r14,r4,#0xf @ rem
- ldmia r11,{r8-r11} @ load Htbl[nhi]
- add r14,r14,r14
- eor r4,r8,r4,lsr#4
- ldrh r8,[sp,r14] @ rem_4bit[rem]
- eor r4,r4,r5,lsl#28
- ldrb r14,[r0,#14]
- eor r5,r9,r5,lsr#4
- eor r5,r5,r6,lsl#28
- eor r6,r10,r6,lsr#4
- eor r6,r6,r7,lsl#28
- eor r7,r11,r7,lsr#4
- eor r12,r12,r14
- and r14,r12,#0xf0
- and r12,r12,#0x0f
- eor r7,r7,r8,lsl#16
-
-.Linner:
- add r11,r1,r12,lsl#4
- and r12,r4,#0xf @ rem
- subs r3,r3,#1
- add r12,r12,r12
- ldmia r11,{r8-r11} @ load Htbl[nlo]
- eor r4,r8,r4,lsr#4
- eor r4,r4,r5,lsl#28
- eor r5,r9,r5,lsr#4
- eor r5,r5,r6,lsl#28
- ldrh r8,[sp,r12] @ rem_4bit[rem]
- eor r6,r10,r6,lsr#4
- ldrplb r12,[r2,r3]
- eor r6,r6,r7,lsl#28
- eor r7,r11,r7,lsr#4
-
- add r11,r1,r14
- and r14,r4,#0xf @ rem
- eor r7,r7,r8,lsl#16 @ ^= rem_4bit[rem]
- add r14,r14,r14
- ldmia r11,{r8-r11} @ load Htbl[nhi]
- eor r4,r8,r4,lsr#4
- ldrplb r8,[r0,r3]
- eor r4,r4,r5,lsl#28
- eor r5,r9,r5,lsr#4
- ldrh r9,[sp,r14]
- eor r5,r5,r6,lsl#28
- eor r6,r10,r6,lsr#4
- eor r6,r6,r7,lsl#28
- eorpl r12,r12,r8
- eor r7,r11,r7,lsr#4
- andpl r14,r12,#0xf0
- andpl r12,r12,#0x0f
- eor r7,r7,r9,lsl#16 @ ^= rem_4bit[rem]
- bpl .Linner
-
- ldr r3,[sp,#32] @ re-load r3/end
- add r2,r2,#16
- mov r14,r4
-#if __ARM_ARCH__>=7 && defined(__ARMEL__)
- rev r4,r4
- str r4,[r0,#12]
-#elif defined(__ARMEB__)
- str r4,[r0,#12]
-#else
- mov r9,r4,lsr#8
- strb r4,[r0,#12+3]
- mov r10,r4,lsr#16
- strb r9,[r0,#12+2]
- mov r11,r4,lsr#24
- strb r10,[r0,#12+1]
- strb r11,[r0,#12]
-#endif
- cmp r2,r3
-#if __ARM_ARCH__>=7 && defined(__ARMEL__)
- rev r5,r5
- str r5,[r0,#8]
-#elif defined(__ARMEB__)
- str r5,[r0,#8]
-#else
- mov r9,r5,lsr#8
- strb r5,[r0,#8+3]
- mov r10,r5,lsr#16
- strb r9,[r0,#8+2]
- mov r11,r5,lsr#24
- strb r10,[r0,#8+1]
- strb r11,[r0,#8]
-#endif
- ldrneb r12,[r2,#15]
-#if __ARM_ARCH__>=7 && defined(__ARMEL__)
- rev r6,r6
- str r6,[r0,#4]
-#elif defined(__ARMEB__)
- str r6,[r0,#4]
-#else
- mov r9,r6,lsr#8
- strb r6,[r0,#4+3]
- mov r10,r6,lsr#16
- strb r9,[r0,#4+2]
- mov r11,r6,lsr#24
- strb r10,[r0,#4+1]
- strb r11,[r0,#4]
-#endif
-
-#if __ARM_ARCH__>=7 && defined(__ARMEL__)
- rev r7,r7
- str r7,[r0,#0]
-#elif defined(__ARMEB__)
- str r7,[r0,#0]
-#else
- mov r9,r7,lsr#8
- strb r7,[r0,#0+3]
- mov r10,r7,lsr#16
- strb r9,[r0,#0+2]
- mov r11,r7,lsr#24
- strb r10,[r0,#0+1]
- strb r11,[r0,#0]
-#endif
-
- bne .Louter
-
- add sp,sp,#36
-#if __ARM_ARCH__>=5
- ldmia sp!,{r4-r11,pc}
-#else
- ldmia sp!,{r4-r11,lr}
- tst lr,#1
- moveq pc,lr @ be binary compatible with V4, yet
- .word 0xe12fff1e @ interoperable with Thumb ISA:-)
-#endif
-.size gcm_ghash_4bit,.-gcm_ghash_4bit
-
-.global gcm_gmult_4bit
-.type gcm_gmult_4bit,%function
-gcm_gmult_4bit:
- stmdb sp!,{r4-r11,lr}
- ldrb r12,[r0,#15]
- b rem_4bit_get
-.Lrem_4bit_got:
- and r14,r12,#0xf0
- and r12,r12,#0x0f
- mov r3,#14
-
- add r7,r1,r12,lsl#4
- ldmia r7,{r4-r7} @ load Htbl[nlo]
- ldrb r12,[r0,#14]
-
- add r11,r1,r14
- and r14,r4,#0xf @ rem
- ldmia r11,{r8-r11} @ load Htbl[nhi]
- add r14,r14,r14
- eor r4,r8,r4,lsr#4
- ldrh r8,[r2,r14] @ rem_4bit[rem]
- eor r4,r4,r5,lsl#28
- eor r5,r9,r5,lsr#4
- eor r5,r5,r6,lsl#28
- eor r6,r10,r6,lsr#4
- eor r6,r6,r7,lsl#28
- eor r7,r11,r7,lsr#4
- and r14,r12,#0xf0
- eor r7,r7,r8,lsl#16
- and r12,r12,#0x0f
-
-.Loop:
- add r11,r1,r12,lsl#4
- and r12,r4,#0xf @ rem
- subs r3,r3,#1
- add r12,r12,r12
- ldmia r11,{r8-r11} @ load Htbl[nlo]
- eor r4,r8,r4,lsr#4
- eor r4,r4,r5,lsl#28
- eor r5,r9,r5,lsr#4
- eor r5,r5,r6,lsl#28
- ldrh r8,[r2,r12] @ rem_4bit[rem]
- eor r6,r10,r6,lsr#4
- ldrplb r12,[r0,r3]
- eor r6,r6,r7,lsl#28
- eor r7,r11,r7,lsr#4
-
- add r11,r1,r14
- and r14,r4,#0xf @ rem
- eor r7,r7,r8,lsl#16 @ ^= rem_4bit[rem]
- add r14,r14,r14
- ldmia r11,{r8-r11} @ load Htbl[nhi]
- eor r4,r8,r4,lsr#4
- eor r4,r4,r5,lsl#28
- eor r5,r9,r5,lsr#4
- ldrh r8,[r2,r14] @ rem_4bit[rem]
- eor r5,r5,r6,lsl#28
- eor r6,r10,r6,lsr#4
- eor r6,r6,r7,lsl#28
- eor r7,r11,r7,lsr#4
- andpl r14,r12,#0xf0
- andpl r12,r12,#0x0f
- eor r7,r7,r8,lsl#16 @ ^= rem_4bit[rem]
- bpl .Loop
-#if __ARM_ARCH__>=7 && defined(__ARMEL__)
- rev r4,r4
- str r4,[r0,#12]
-#elif defined(__ARMEB__)
- str r4,[r0,#12]
-#else
- mov r9,r4,lsr#8
- strb r4,[r0,#12+3]
- mov r10,r4,lsr#16
- strb r9,[r0,#12+2]
- mov r11,r4,lsr#24
- strb r10,[r0,#12+1]
- strb r11,[r0,#12]
-#endif
-
-#if __ARM_ARCH__>=7 && defined(__ARMEL__)
- rev r5,r5
- str r5,[r0,#8]
-#elif defined(__ARMEB__)
- str r5,[r0,#8]
-#else
- mov r9,r5,lsr#8
- strb r5,[r0,#8+3]
- mov r10,r5,lsr#16
- strb r9,[r0,#8+2]
- mov r11,r5,lsr#24
- strb r10,[r0,#8+1]
- strb r11,[r0,#8]
-#endif
-
-#if __ARM_ARCH__>=7 && defined(__ARMEL__)
- rev r6,r6
- str r6,[r0,#4]
-#elif defined(__ARMEB__)
- str r6,[r0,#4]
-#else
- mov r9,r6,lsr#8
- strb r6,[r0,#4+3]
- mov r10,r6,lsr#16
- strb r9,[r0,#4+2]
- mov r11,r6,lsr#24
- strb r10,[r0,#4+1]
- strb r11,[r0,#4]
-#endif
-
-#if __ARM_ARCH__>=7 && defined(__ARMEL__)
- rev r7,r7
- str r7,[r0,#0]
-#elif defined(__ARMEB__)
- str r7,[r0,#0]
-#else
- mov r9,r7,lsr#8
- strb r7,[r0,#0+3]
- mov r10,r7,lsr#16
- strb r9,[r0,#0+2]
- mov r11,r7,lsr#24
- strb r10,[r0,#0+1]
- strb r11,[r0,#0]
-#endif
-
-#if __ARM_ARCH__>=5
- ldmia sp!,{r4-r11,pc}
-#else
- ldmia sp!,{r4-r11,lr}
- tst lr,#1
- moveq pc,lr @ be binary compatible with V4, yet
- .word 0xe12fff1e @ interoperable with Thumb ISA:-)
-#endif
-.size gcm_gmult_4bit,.-gcm_gmult_4bit
-#if __ARM_ARCH__>=7
-.fpu neon
-
-.global gcm_gmult_neon
-.type gcm_gmult_neon,%function
-.align 4
-gcm_gmult_neon:
- sub r1,#16 @ point at H in GCM128_CTX
- vld1.64 d29,[r0,:64]!@ load Xi
- vmov.i32 d5,#0xe1 @ our irreducible polynomial
- vld1.64 d28,[r0,:64]!
- vshr.u64 d5,#32
- vldmia r1,{d0-d1} @ load H
- veor q12,q12
-#ifdef __ARMEL__
- vrev64.8 q14,q14
-#endif
- veor q13,q13
- veor q11,q11
- mov r1,#16
- veor q10,q10
- mov r3,#16
- veor d2,d2
- vdup.8 d4,d28[0] @ broadcast lowest byte
- b .Linner_neon
-.size gcm_gmult_neon,.-gcm_gmult_neon
-
-.global gcm_ghash_neon
-.type gcm_ghash_neon,%function
-.align 4
-gcm_ghash_neon:
- vld1.64 d21,[r0,:64]! @ load Xi
- vmov.i32 d5,#0xe1 @ our irreducible polynomial
- vld1.64 d20,[r0,:64]!
- vshr.u64 d5,#32
- vldmia r0,{d0-d1} @ load H
- veor q12,q12
- nop
-#ifdef __ARMEL__
- vrev64.8 q10,q10
-#endif
-.Louter_neon:
- vld1.64 d29,[r2]! @ load inp
- veor q13,q13
- vld1.64 d28,[r2]!
- veor q11,q11
- mov r1,#16
-#ifdef __ARMEL__
- vrev64.8 q14,q14
-#endif
- veor d2,d2
- veor q14,q10 @ inp^=Xi
- veor q10,q10
- vdup.8 d4,d28[0] @ broadcast lowest byte
-.Linner_neon:
- subs r1,r1,#1
- vmull.p8 q9,d1,d4 @ H.lo·Xi[i]
- vmull.p8 q8,d0,d4 @ H.hi·Xi[i]
- vext.8 q14,q12,#1 @ IN>>=8
-
- veor q10,q13 @ modulo-scheduled part
- vshl.i64 d22,#48
- vdup.8 d4,d28[0] @ broadcast lowest byte
- veor d3,d18,d20
-
- veor d21,d22
- vuzp.8 q9,q8
- vsli.8 d2,d3,#1 @ compose the "carry" byte
- vext.8 q10,q12,#1 @ Z>>=8
-
- vmull.p8 q11,d2,d5 @ "carry"·0xe1
- vshr.u8 d2,d3,#7 @ save Z's bottom bit
- vext.8 q13,q9,q12,#1 @ Qlo>>=8
- veor q10,q8
- bne .Linner_neon
-
- veor q10,q13 @ modulo-scheduled artefact
- vshl.i64 d22,#48
- veor d21,d22
-
- @ finalization, normalize Z:Zo
- vand d2,d5 @ suffices to mask the bit
- vshr.u64 d3,d20,#63
- vshl.i64 q10,#1
- subs r3,#16
- vorr q10,q1 @ Z=Z:Zo<<1
- bne .Louter_neon
-
-#ifdef __ARMEL__
- vrev64.8 q10,q10
-#endif
- sub r0,#16
- vst1.64 d21,[r0,:64]! @ write out Xi
- vst1.64 d20,[r0,:64]
-
- .word 0xe12fff1e
-.size gcm_ghash_neon,.-gcm_ghash_neon
-#endif
-.asciz "GHASH for ARMv4/NEON, CRYPTOGAMS by <appro@openssl.org>"
-.align 2
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