Re: [Xen-devel] [PATCH v2 24/30] tools/libxc: Modify bitmap operations to take void pointers

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

On Mon, 2016-02-08 at 16:23 +0000, Tim Deegan wrote:
> At 13:42 +0000 on 05 Feb (1454679737), Andrew Cooper wrote:
> > The type of the pointer to a bitmap is not interesting; it does not
> > affect the
> > representation of the block of bits being pointed to.
> 
> It does affect the alignment, though.ÂÂIs this safe on ARM?

Good point. These constructs in the patch:

+ÂÂÂÂconst unsigned long *addr = _addr;

Would be broken if _addr were not suitably aligned for an unsigned long.

That probably rules out this approach unfortunately.

Ian.


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