aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--arch/arm/lib/Makefile2
-rw-r--r--arch/arm/lib/sha1.S211
2 files changed, 1 insertions, 212 deletions
diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
index 59ff42ddf0a..cf73a7f742d 100644
--- a/arch/arm/lib/Makefile
+++ b/arch/arm/lib/Makefile
@@ -12,7 +12,7 @@ lib-y := backtrace.o changebit.o csumipv6.o csumpartial.o \
strchr.o strrchr.o \
testchangebit.o testclearbit.o testsetbit.o \
ashldi3.o ashrdi3.o lshrdi3.o muldi3.o \
- ucmpdi2.o lib1funcs.o div64.o sha1.o \
+ ucmpdi2.o lib1funcs.o div64.o \
io-readsb.o io-writesb.o io-readsl.o io-writesl.o
mmu-y := clear_user.o copy_page.o getuser.o putuser.o
diff --git a/arch/arm/lib/sha1.S b/arch/arm/lib/sha1.S
deleted file mode 100644
index eb0edb80d7b..00000000000
--- a/arch/arm/lib/sha1.S
+++ /dev/null
@@ -1,211 +0,0 @@
-/*
- * linux/arch/arm/lib/sha1.S
- *
- * SHA transform optimized for ARM
- *
- * Copyright: (C) 2005 by Nicolas Pitre <nico@fluxnic.net>
- * Created: September 17, 2005
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * The reference implementation for this code is linux/lib/sha1.c
- */
-
-#include <linux/linkage.h>
-
- .text
-
-
-/*
- * void sha_transform(__u32 *digest, const char *in, __u32 *W)
- *
- * Note: the "in" ptr may be unaligned.
- */
-
-ENTRY(sha_transform)
-
- stmfd sp!, {r4 - r8, lr}
-
- @ for (i = 0; i < 16; i++)
- @ W[i] = be32_to_cpu(in[i]);
-
-#ifdef __ARMEB__
- mov r4, r0
- mov r0, r2
- mov r2, #64
- bl memcpy
- mov r2, r0
- mov r0, r4
-#else
- mov r3, r2
- mov lr, #16
-1: ldrb r4, [r1], #1
- ldrb r5, [r1], #1
- ldrb r6, [r1], #1
- ldrb r7, [r1], #1
- subs lr, lr, #1
- orr r5, r5, r4, lsl #8
- orr r6, r6, r5, lsl #8
- orr r7, r7, r6, lsl #8
- str r7, [r3], #4
- bne 1b
-#endif
-
- @ for (i = 0; i < 64; i++)
- @ W[i+16] = ror(W[i+13] ^ W[i+8] ^ W[i+2] ^ W[i], 31);
-
- sub r3, r2, #4
- mov lr, #64
-2: ldr r4, [r3, #4]!
- subs lr, lr, #1
- ldr r5, [r3, #8]
- ldr r6, [r3, #32]
- ldr r7, [r3, #52]
- eor r4, r4, r5
- eor r4, r4, r6
- eor r4, r4, r7
- mov r4, r4, ror #31
- str r4, [r3, #64]
- bne 2b
-
- /*
- * The SHA functions are:
- *
- * f1(B,C,D) = (D ^ (B & (C ^ D)))
- * f2(B,C,D) = (B ^ C ^ D)
- * f3(B,C,D) = ((B & C) | (D & (B | C)))
- *
- * Then the sub-blocks are processed as follows:
- *
- * A' = ror(A, 27) + f(B,C,D) + E + K + *W++
- * B' = A
- * C' = ror(B, 2)
- * D' = C
- * E' = D
- *
- * We therefore unroll each loop 5 times to avoid register shuffling.
- * Also the ror for C (and also D and E which are successivelyderived
- * from it) is applied in place to cut on an additional mov insn for
- * each round.
- */
-
- .macro sha_f1, A, B, C, D, E
- ldr r3, [r2], #4
- eor ip, \C, \D
- add \E, r1, \E, ror #2
- and ip, \B, ip, ror #2
- add \E, \E, \A, ror #27
- eor ip, ip, \D, ror #2
- add \E, \E, r3
- add \E, \E, ip
- .endm
-
- .macro sha_f2, A, B, C, D, E
- ldr r3, [r2], #4
- add \E, r1, \E, ror #2
- eor ip, \B, \C, ror #2
- add \E, \E, \A, ror #27
- eor ip, ip, \D, ror #2
- add \E, \E, r3
- add \E, \E, ip
- .endm
-
- .macro sha_f3, A, B, C, D, E
- ldr r3, [r2], #4
- add \E, r1, \E, ror #2
- orr ip, \B, \C, ror #2
- add \E, \E, \A, ror #27
- and ip, ip, \D, ror #2
- add \E, \E, r3
- and r3, \B, \C, ror #2
- orr ip, ip, r3
- add \E, \E, ip
- .endm
-
- ldmia r0, {r4 - r8}
-
- mov lr, #4
- ldr r1, .L_sha_K + 0
-
- /* adjust initial values */
- mov r6, r6, ror #30
- mov r7, r7, ror #30
- mov r8, r8, ror #30
-
-3: subs lr, lr, #1
- sha_f1 r4, r5, r6, r7, r8
- sha_f1 r8, r4, r5, r6, r7
- sha_f1 r7, r8, r4, r5, r6
- sha_f1 r6, r7, r8, r4, r5
- sha_f1 r5, r6, r7, r8, r4
- bne 3b
-
- ldr r1, .L_sha_K + 4
- mov lr, #4
-
-4: subs lr, lr, #1
- sha_f2 r4, r5, r6, r7, r8
- sha_f2 r8, r4, r5, r6, r7
- sha_f2 r7, r8, r4, r5, r6
- sha_f2 r6, r7, r8, r4, r5
- sha_f2 r5, r6, r7, r8, r4
- bne 4b
-
- ldr r1, .L_sha_K + 8
- mov lr, #4
-
-5: subs lr, lr, #1
- sha_f3 r4, r5, r6, r7, r8
- sha_f3 r8, r4, r5, r6, r7
- sha_f3 r7, r8, r4, r5, r6
- sha_f3 r6, r7, r8, r4, r5
- sha_f3 r5, r6, r7, r8, r4
- bne 5b
-
- ldr r1, .L_sha_K + 12
- mov lr, #4
-
-6: subs lr, lr, #1
- sha_f2 r4, r5, r6, r7, r8
- sha_f2 r8, r4, r5, r6, r7
- sha_f2 r7, r8, r4, r5, r6
- sha_f2 r6, r7, r8, r4, r5
- sha_f2 r5, r6, r7, r8, r4
- bne 6b
-
- ldmia r0, {r1, r2, r3, ip, lr}
- add r4, r1, r4
- add r5, r2, r5
- add r6, r3, r6, ror #2
- add r7, ip, r7, ror #2
- add r8, lr, r8, ror #2
- stmia r0, {r4 - r8}
-
- ldmfd sp!, {r4 - r8, pc}
-
-ENDPROC(sha_transform)
-
- .align 2
-.L_sha_K:
- .word 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xca62c1d6
-
-
-/*
- * void sha_init(__u32 *buf)
- */
-
- .align 2
-.L_sha_initial_digest:
- .word 0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0
-
-ENTRY(sha_init)
-
- str lr, [sp, #-4]!
- adr r1, .L_sha_initial_digest
- ldmia r1, {r1, r2, r3, ip, lr}
- stmia r0, {r1, r2, r3, ip, lr}
- ldr pc, [sp], #4
-
-ENDPROC(sha_init)