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sha1dc: update from upstream

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Update sha1dc from the latest version by the upstream
maintainer[1]. See 2db87328ef ("Merge branch 'ab/sha1dc'", 2017-07-10)
for the last update.

This fixes an issue where AIX was wrongly detected as a Little-endian
instead of a Big-endian system. See [2][3][4].

1. 232357eb2e
2. https://github.com/cr-marcstevens/sha1collisiondetection/pull/45
3. https://github.com/cr-marcstevens/sha1collisiondetection/pull/42
4. https://public-inbox.org/git/20180729200623.GF945730@genre.crustytoothpaste.net/

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Ævar Arnfjörð Bjarmason 2018-08-02 20:50:44 +00:00 committed by Junio C Hamano
parent ffc6fa0e39
commit 23e37f8e9d
2 changed files with 12 additions and 2 deletions
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2
sha1collisiondetection

@ -1 +1 @@
Subproject commit 19d97bf5af05312267c2e874ee6bcf584d9e9681
Subproject commit 232357eb2ea0397388254a4b188333a227bf5b10

12
sha1dc/sha1.c
View File

@ -93,13 +93,23 @@
#define SHA1DC_BIGENDIAN
/* Not under GCC-alike or glibc or *BSD or newlib or <processor whitelist> */
#elif (defined(_AIX))
/*
* Defines Big Endian on a whitelist of OSs that are known to be Big
* Endian-only. See
* https://public-inbox.org/git/93056823-2740-d072-1ebd-46b440b33d7e@felt.demon.nl/
*/
#define SHA1DC_BIGENDIAN
/* Not under GCC-alike or glibc or *BSD or newlib or <processor whitelist> or <os whitelist> */
#elif defined(SHA1DC_ON_INTEL_LIKE_PROCESSOR)
/*
* As a last resort before we do anything else we're not 100% sure
* about below, we blacklist specific processors here. We could add
* more, see e.g. https://wiki.debian.org/ArchitectureSpecificsMemo
*/
#else /* Not under GCC-alike or glibc or *BSD or newlib or <processor whitelist> or <processor blacklist> */
#else /* Not under GCC-alike or glibc or *BSD or newlib or <processor whitelist> or <os whitelist> or <processor blacklist> */
/* We do nothing more here for now */
/*#error "Uncomment this to see if you fall through all the detection"*/