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| author | Patrick Steinhardt <ps@pks.im> | 2019-06-10 13:54:11 +0200 |
|---|---|---|
| committer | Patrick Steinhardt <ps@pks.im> | 2019-06-11 07:49:14 +0200 |
| commit | 230a451ee6182d773c11ee199d37c7ae911c59b1 (patch) | |
| tree | a5611fd0a2fb1e9cdd6af3f29a49be9de18ed81a | |
| parent | e50d138e898dd034161663873f75716086266f86 (diff) | |
| download | libgit2-230a451ee6182d773c11ee199d37c7ae911c59b1.tar.gz | |
sha1dc: update to fix endianess issues on AIX/HP-UX
Update our copy of sha1dc to the upstream commit 855827c (Detect
endianess on HP-UX, 2019-05-09). Changes include fixes to endian
detection on AIX and HP-UX systems as well as a define that
allows us to force aligned access, which we're not using yet.
| -rw-r--r-- | src/hash/sha1dc/sha1.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/src/hash/sha1dc/sha1.c b/src/hash/sha1dc/sha1.c index 25eded139..9d3cf81d4 100644 --- a/src/hash/sha1dc/sha1.c +++ b/src/hash/sha1dc/sha1.c @@ -93,13 +93,23 @@ #define SHA1DC_BIGENDIAN /* Not under GCC-alike or glibc or *BSD or newlib or <processor whitelist> */ +#elif (defined(_AIX) || defined(__hpux)) + +/* + * 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"*/ @@ -114,10 +124,11 @@ #endif /*ENDIANNESS SELECTION*/ +#ifndef SHA1DC_FORCE_ALIGNED_ACCESS #if defined(SHA1DC_FORCE_UNALIGNED_ACCESS) || defined(SHA1DC_ON_INTEL_LIKE_PROCESSOR) #define SHA1DC_ALLOW_UNALIGNED_ACCESS -#endif /*UNALIGNMENT DETECTION*/ - +#endif /*UNALIGNED ACCESS DETECTION*/ +#endif /*FORCE ALIGNED ACCESS*/ #define rotate_right(x,n) (((x)>>(n))|((x)<<(32-(n)))) #define rotate_left(x,n) (((x)<<(n))|((x)>>(32-(n)))) |