Re: csiphash on Sparc

[Carsten Grzemba <grzemba@xxxxxxxxxxxx>]

On 10.10.17 16:10, William Brown  <wibrown@xxxxxxxxxx> wrote:

On Fri, 2017-10-06 at 10:21 +0200, Carsten Grzemba wrote:
> Currently the code src/libsds/external/csiphash/csiphash.c do not work on Sparc.
> The casting void* or char* to unit64_t* throws Bus-Error.
>
> The solution would be to copy the content of the void and char pointer so that the variabeles are suitably aligned.
> To prevent have to use malloc: do we know the max of src_sz?
>


What line is this? I assume you are refering to:

https://pagure.io/389-ds-base/blob/master/f/src/libsds/external/csiphash/csiphash.c#_82

yes!

No, we can't know the max of src_sz, in theory it could be uint64_t max.
So this may not be an option.

So is malloc for uint64 alignment of the src variable the only option?

Are you trying this on a 32bit platform perhaps? What's the arch of the
machine with the issue?

64bit, Fujitsu M4000
$ isainfo -v
64-bit sparcv9 applications
        fmaf vis2 vis popc 


Carsten
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