Re: [Xen-devel] [PATCH] clang: sizeof(type) must not have __attribute__(aligned)

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

On Tue, 2014-09-16 at 11:26 -0700, Julien Grall wrote:
> Hi Ian,
> 
> On 16/09/14 09:21, Ian Campbell wrote:
> > On Sat, 2014-09-13 at 18:42 +0000, Marcin Cieslak wrote:
> >
> > The commit message could go into a bit more detail as to why this is not
> > allowed. To me it sounds like clang is being overly picky, surely it can
> > just ignore the alignment in that context?
> 
> Clang will throw a warning when an attribute is unused (see 
> -Wignored-attributes). In case of libxc, we compiled with -Werror which 
> will turn this warning into an error.

Sounds to me like -Wignored-attributes is a bit pointless, perhaps we
shouldn't use it?

Ian.


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