On Sun, Aug 7, 2011 at 12:47 PM, Andreas Schwab <schwab@xxxxxxxxxxxxxx> wrote:
>
> ARM has its own implementation of sha_transform in arch/arm/lib/sha1.S,
> which assumes SHA_WORKSPACE_WORDS is 80.
Well, that certainly explains it.
I wonder if that thing is worth it. It seems to be based on the bad
slow version of sha1, so I suspect that the biggest advantage of it
may the byte-swapping being done more efficiently. The ARM version of
"get_unaligned_be32()" is potentially pretty bad.
Joachim, does it all work for you if you just remove 'sha1.o' from
lib-y in arch/arm/lib/Makefile?
Nico (now with corrected email address): is that ARM-optimized asm
really worth it? Compared to the git C implementation?
Linus
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