Re: [tip:x86/x32] x32: Fix alignment fail in struct compat_siginfo

From: H. Peter Anvin
Date: Wed Apr 18 2012 - 19:49:12 EST

On 04/18/2012 03:55 PM, H.J. Lu wrote:
> On Wed, Apr 18, 2012 at 2:24 PM, H. Peter Anvin <hpa@xxxxxxxxx> wrote:
>> Something like this works for you?
>> Note: we should promote __compat_[us]64 to a global type when we do the
>> cleanup work requested by Linus (change __[us]64 to explicitly aligned
>> types, with all users that require the old types using __compat_[us]64),
>> but we need the compiler warning to do that, realistically.
> Can we also align struct siginfo to 8byte for x32?

We could. If we want to align the substructures then we need some major
surgery to the compat_siginfo handling though.


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