Re: [Xen-devel] [PATCH v2] libxl: replace the usage of uuid_t with a char array

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Wed, Apr 06, 2016 at 01:11:05PM +0200, Roger Pau Monne wrote:
> The internals of the uuid_t struct don't match a big endian octet stream on
> *BSD systems, which means that it cannot be directly casted to a
> uint8_t[16].
> 
> In order to solve that change the type to be an unsigned char[16], which
> doesn't imply any other change on Linux. On *BSDs change the helpers so that
> the uuid is always stored as a big endian byte stream.
> 
> NB: tested on FreeBSD and Linux only.
> 
> Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
> Discussed-with: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
> Discussed-with: Wei Liu <wei.liu2@xxxxxxxxxx>
> ---
> Cc: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
> Cc: Wei Liu <wei.liu2@xxxxxxxxxx>
> ---
> NB2: AFAICT the NetBSD version of libxl_uuid_from_string *could* be switched
> to the FreeBSD one (because NetBSD also has uuid_from_string), but I don't
> have a NetBSD box in order to test it.

Haven't looked at the code but maybe it's a good idea to CC netbsd
port-xen list?

Wei.

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