64bit builds & Linux

[flihp]

I've been working up a few patches to enable use of this code on Linux. Currently I have done enough to get a functional daemon running with test cases from https://github.com/tpm2-software/tpm2-tss.git working as expected. I'm only able to do so when building for a 32bit host though. 64bit builds produce a binary just fine but it hangs when handling commands and I wanted to check to see if 64bit builds are intended to work at all before I spend time debugging this.

My intention is to submit this work as a PR once I've cleaned it up a bit and sorted out this issue with the 64bit builds.

Thanks.

[amarochk]

Hi Philip,

Yes, it would be great if the 64-bit version worked too. But if it going to take significant time, you could commit your 32-bit-only version first.

Thanks,
-Andrey

[flihp]

Hey @amarochk. Thanks for the quick response. I just spent a while playing around with the build on Windows and the 32bit build works as expected but I've been unable to get the 64bit build to work. Is this the expected behavior? I'm pretty rusty with windows & VS so it's very likely this is just my own ignorance getting in the way 😄

[amarochk]

64-bit build works fine as long as you give it the correct (64-bit) OpenSSL binaries (and matching headers). You'll only need to update the '#define RADIX_BITS' definition in Implementation.h (you'll get a compile time error if it does not match the underlying crypto library requirements).

[flihp]

Thanks for the hint here @amarochk. This helped a lot in debugging a gap in the RADIX_BITS sanity checks that are done in TPMCmd/tpm/include/ossl/TpmToOsslMath.h. Just put up a PR to fill this gap: #6