From: Johannes Schindelin <Johannes.Schindelin@gmx.de>
To: Junio C Hamano <gitster@pobox.com>
Cc: "Marc Stevens" <marc@marc-stevens.nl>,
"Michael Kebe" <michael.kebe@gmail.com>,
"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>,
"Jeff King" <peff@peff.net>,
"Git Mailing List" <git@vger.kernel.org>
Subject: Re: [PATCH] sha1dc: fix issues with a big endian platform
Date: Wed, 17 May 2017 17:26:32 +0200 (CEST) [thread overview]
Message-ID: <alpine.DEB.2.21.1.1705171722440.3610@virtualbox> (raw)
In-Reply-To: <xmqq37c4xcr6.fsf_-_@gitster.mtv.corp.google.com>
Hi Junio,
On Wed, 17 May 2017, Junio C Hamano wrote:
> diff --git a/sha1dc/sha1.c b/sha1dc/sha1.c
> index 35e9dd5bf4..ae25318c47 100644
> --- a/sha1dc/sha1.c
> +++ b/sha1dc/sha1.c
> @@ -20,7 +20,7 @@
> */
> #if (defined(__BYTE_ORDER) && (__BYTE_ORDER == __BIG_ENDIAN)) || \
> (defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __BIG_ENDIAN__)) || \
> - defined(__BIG_ENDIAN__) || defined(__ARMEB__) || defined(__THUMBEB__) || defined(__AARCH64EB__) || \
> + defined(_BIG_ENDIAN) || defined(__BIG_ENDIAN__) || defined(__ARMEB__) || defined(__THUMBEB__) || defined(__AARCH64EB__) || \
> defined(_MIPSEB) || defined(__MIPSEB) || defined(__MIPSEB__)
>
> #define SHA1DC_BIGENDIAN 1
> @@ -1728,7 +1728,8 @@ void SHA1DCUpdate(SHA1_CTX* ctx, const char* buf, size_t len)
> while (len >= 64)
> {
> ctx->total += 64;
> - sha1_process(ctx, (uint32_t*)(buf));
> + memcpy(ctx->buffer, buf, 64);
> + sha1_process(ctx, (uint32_t*)(ctx->buffer));
> buf += 64;
There is actually a discussion going on about this. See
https://github.com/cr-marcstevens/sha1collisiondetection/commit/33a694a9ee1b79c24be45f9eab5ac0e1aeeaf271#commitcomment-22158243
for details.
The fixup commit under discussion is here:
https://github.com/cr-marcstevens/sha1collisiondetection/commit/40f07a0c12d525b24ac1235ee8a81bbf33957ca5
Ciao,
dscho
prev parent reply other threads:[~2017-05-17 15:27 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-15 12:49 Git 2.13.0 segfaults on Solaris SPARC due to DC_SHA1=YesPlease being on by default Ævar Arnfjörð Bjarmason
2017-05-15 13:58 ` Marc Stevens
2017-05-15 14:13 ` Ævar Arnfjörð Bjarmason
2017-05-15 22:09 ` Jeff King
2017-06-01 14:03 ` demerphq
[not found] ` <CAKKM46vwM9pxyMxTc4jA0z_8vGKdDGCGg9ziKkFAsqr5ULYJxA@mail.gmail.com>
[not found] ` <007001d2cd88$2b916180$82b42480$@marc-stevens.nl>
2017-05-16 5:43 ` Michael Kebe
2017-05-17 5:39 ` [PATCH] sha1dc: fix issues with a big endian platform Junio C Hamano
2017-05-17 6:30 ` Ævar Arnfjörð Bjarmason
2017-05-17 7:09 ` Junio C Hamano
2017-05-17 11:38 ` [PATCH/RFC 0/3] Use sha1collisiondetection as a submodule Ævar Arnfjörð Bjarmason
2017-05-17 18:52 ` Stefan Beller
2017-05-17 19:45 ` Ævar Arnfjörð Bjarmason
2017-05-17 19:57 ` Stefan Beller
2017-05-18 0:11 ` Brandon Williams
2017-05-17 11:38 ` [PATCH/RFC 1/3] sha1dc: update from my fork of upstream Ævar Arnfjörð Bjarmason
2017-05-17 11:38 ` [PATCH/RFC 2/3] sha1dc: use sha1collisiondetection as a submodule Ævar Arnfjörð Bjarmason
2017-05-17 15:26 ` Johannes Schindelin [this message]
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