Hi,
i had some problems on Win64 using BIO_do_handshake/BIO_should_retry in a loop.
The compiler optimizer placed a local variable value in the xmm6 register.
The content of this register was destroyed after calling BIO_do_handshake. I
debugged this and found that the xmm6/xmm7 registers were not restored.
I fixed this with following diff for openssl-1.0.2d / x86_64-mont5.pl
(bn_power5 and bn_from_mont8x):
1013a1014,1020
> ___
> $code.=<<___ if ($win64);
> movaps -88(%rsi),%xmm6
> movaps -72(%rsi),%xmm7
> ___
> $code.=<<___;
>
2005a2013,2019
> ___
> $code.=<<___ if ($win64);
> movaps -88(%rsi),%xmm6
> movaps -72(%rsi),%xmm7
> ___
> $code.=<<___;
>
The fix in bn_from_mont8x was not necessary for me but i think the lines are
also missing there.
Best regards
Uwe Granzow
________________________________________
Celemony Software GmbH
Uwe Granzow
[email protected]
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