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2019-05-14sha1dc: update from upstreamÆvar Arnfjörð Bjarmason
Update sha1dc from the latest version by the upstream maintainer[1]. See 07a20f569b ("Makefile: fix unaligned loads in sha1dc with UBSan", 2019-03-12) for the last update. This fixes an issue where HP-UX IA64 was wrongly detected as a Little-endian instead of a Big-endian system, see [2] and [3]. 1. https://github.com/cr-marcstevens/sha1collisiondetection/commit/855827c583bc30645ba427885caa40c5b81764d2 2. https://public-inbox.org/git/603989bd-f86d-c61d-c6f5-fb6748a65ba9@siemens.com/ 3. https://github.com/cr-marcstevens/sha1collisiondetection/pull/50 Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-03-13Makefile: fix unaligned loads in sha1dc with UBSanJeff King
The sha1dc library uses unaligned loads on platforms that support them. This is normally what you'd want for performance, but it does cause UBSan to complain when we compile with SANITIZE=undefined. Just like we set -DNO_UNALIGNED_LOADS for our own code in that case, we should set -DSHA1DC_FORCE_ALIGNED_ACCESS. Of course that does nothing without pulling in the patches from sha1dc to respect that define. So let's do that, too, updating both the submodule link and our in-tree copy (from the same commit). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-08-02sha1dc: update from upstreamÆvar Arnfjörð Bjarmason
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. https://github.com/cr-marcstevens/sha1collisiondetection/commit/232357eb2ea0397388254a4b188333a227bf5b10 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>
2017-07-03sha1dc: optionally use sha1collisiondetection as a submoduleÆvar Arnfjörð Bjarmason
Add an option to use the sha1collisiondetection library from the submodule in sha1collisiondetection/ instead of in the copy in the sha1dc/ directory. This allows us to try out the submodule in sha1collisiondetection without breaking the build for anyone who's not expecting them as we work out any kinks. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>