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author | Junio C Hamano <gitster@pobox.com> | 2011-07-06 15:38:18 -0700 |
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committer | Junio C Hamano <gitster@pobox.com> | 2011-07-06 15:38:18 -0700 |
commit | 71ee7fd15457a0252c089420b5b66de266dcbd2f (patch) | |
tree | 98d4d7d1f72c30fd7695f011be78d3e45158c41a /arm | |
parent | Merge commit 'v1.6.0' into jc/checkout-reflog-fix (diff) | |
parent | Git 1.7.0 (diff) | |
download | tgif-71ee7fd15457a0252c089420b5b66de266dcbd2f.tar.xz |
Merge commit 'v1.7.0' into jc/checkout-reflog-fix
* commit 'v1.7.0': (4188 commits)
Git 1.7.0
Fix typo in 1.6.6.2 release notes
Re-fix check-ref-format documentation mark-up
archive documentation: attributes are taken from the tree by default
Documentation: minor fixes to RelNotes-1.7.0
bash: support 'git am's new '--continue' option
filter-branch: Fix error message for --prune-empty --commit-filter
am: switch --resolved to --continue
Update draft release notes to 1.7.0 one more time
Git 1.6.6.2
t8003: check exit code of command and error message separately
check-ref-format documentation: fix enumeration mark-up
Documentation: quote braces in {upstream} notation
t3902: Protect against OS X normalization
blame: prevent a segv when -L given start > EOF
git-push: document all the status flags used in the output
Fix parsing of imap.preformattedHTML and imap.sslverify
git-add documentation: Fix shell quoting example
Revert "pack-objects: fix pack generation when using pack_size_limit"
archive: simplify archive format guessing
...
Diffstat (limited to 'arm')
-rw-r--r-- | arm/sha1.c | 82 | ||||
-rw-r--r-- | arm/sha1.h | 18 | ||||
-rw-r--r-- | arm/sha1_arm.S | 183 |
3 files changed, 0 insertions, 283 deletions
diff --git a/arm/sha1.c b/arm/sha1.c deleted file mode 100644 index 9e3ae038e8..0000000000 --- a/arm/sha1.c +++ /dev/null @@ -1,82 +0,0 @@ -/* - * SHA-1 implementation optimized for ARM - * - * Copyright: (C) 2005 by Nicolas Pitre <nico@cam.org> - * Created: September 17, 2005 - */ - -#include <string.h> -#include "sha1.h" - -extern void sha_transform(uint32_t *hash, const unsigned char *data, uint32_t *W); - -void SHA1_Init(SHA_CTX *c) -{ - c->len = 0; - c->hash[0] = 0x67452301; - c->hash[1] = 0xefcdab89; - c->hash[2] = 0x98badcfe; - c->hash[3] = 0x10325476; - c->hash[4] = 0xc3d2e1f0; -} - -void SHA1_Update(SHA_CTX *c, const void *p, unsigned long n) -{ - uint32_t workspace[80]; - unsigned int partial; - unsigned long done; - - partial = c->len & 0x3f; - c->len += n; - if ((partial + n) >= 64) { - if (partial) { - done = 64 - partial; - memcpy(c->buffer + partial, p, done); - sha_transform(c->hash, c->buffer, workspace); - partial = 0; - } else - done = 0; - while (n >= done + 64) { - sha_transform(c->hash, p + done, workspace); - done += 64; - } - } else - done = 0; - if (n - done) - memcpy(c->buffer + partial, p + done, n - done); -} - -void SHA1_Final(unsigned char *hash, SHA_CTX *c) -{ - uint64_t bitlen; - uint32_t bitlen_hi, bitlen_lo; - unsigned int i, offset, padlen; - unsigned char bits[8]; - static const unsigned char padding[64] = { 0x80, }; - - bitlen = c->len << 3; - offset = c->len & 0x3f; - padlen = ((offset < 56) ? 56 : (64 + 56)) - offset; - SHA1_Update(c, padding, padlen); - - bitlen_hi = bitlen >> 32; - bitlen_lo = bitlen & 0xffffffff; - bits[0] = bitlen_hi >> 24; - bits[1] = bitlen_hi >> 16; - bits[2] = bitlen_hi >> 8; - bits[3] = bitlen_hi; - bits[4] = bitlen_lo >> 24; - bits[5] = bitlen_lo >> 16; - bits[6] = bitlen_lo >> 8; - bits[7] = bitlen_lo; - SHA1_Update(c, bits, 8); - - for (i = 0; i < 5; i++) { - uint32_t v = c->hash[i]; - hash[0] = v >> 24; - hash[1] = v >> 16; - hash[2] = v >> 8; - hash[3] = v; - hash += 4; - } -} diff --git a/arm/sha1.h b/arm/sha1.h deleted file mode 100644 index 3952646349..0000000000 --- a/arm/sha1.h +++ /dev/null @@ -1,18 +0,0 @@ -/* - * SHA-1 implementation optimized for ARM - * - * Copyright: (C) 2005 by Nicolas Pitre <nico@cam.org> - * Created: September 17, 2005 - */ - -#include <stdint.h> - -typedef struct sha_context { - uint64_t len; - uint32_t hash[5]; - unsigned char buffer[64]; -} SHA_CTX; - -void SHA1_Init(SHA_CTX *c); -void SHA1_Update(SHA_CTX *c, const void *p, unsigned long n); -void SHA1_Final(unsigned char *hash, SHA_CTX *c); diff --git a/arm/sha1_arm.S b/arm/sha1_arm.S deleted file mode 100644 index 8c1cb99fb4..0000000000 --- a/arm/sha1_arm.S +++ /dev/null @@ -1,183 +0,0 @@ -/* - * SHA transform optimized for ARM - * - * Copyright: (C) 2005 by Nicolas Pitre <nico@cam.org> - * 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. - */ - - .text - .globl sha_transform - -/* - * void sha_transform(uint32_t *hash, const unsigned char *data, uint32_t *W); - * - * note: the "data" pointer may be unaligned. - */ - -sha_transform: - - stmfd sp!, {r4 - r8, lr} - - @ for (i = 0; i < 16; i++) - @ W[i] = ntohl(((uint32_t *)data)[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} - -.L_sha_K: - .word 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xca62c1d6 |