Re: [Xen-devel] RFC: 32 bits as smallest atomic size.

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 26 Mar 2005, at 17:31, Jimi Xenidis wrote:

> > > > > > "RGM" == Ronald G Minnich <rminnich@xxxxxxxx> writes:
>  RGM> On Fri, 25 Mar 2005, Jimi Xenidis wrote:
>
> > > Few things to note:
> > > 1) packed is necessary since the ABI will do the right thing
>  RGM>                  un-necessary?
> oops, yes un-necessary.
> -JX
I prefer to pack things explicitly rather than rely on ABI padding. My 
aim is to be able to document the interfaces separately from the C 
source, and that will include knowing the offset of each field, and 
that's easiest if the compiler isn't automatically helping by paddin 
things unexpectedly. If PACKED is too painful on a particular arch you 
can always stub it out -- it's only a macro after all.
 -- Keir



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