On Mon, Jul 29, 2013 at 12:34:00PM -0600, Warner Losh wrote: > > On Jul 29, 2013, at 11:58 AM, Hans Petter Selasky wrote: > > > The aligned will make sure that the structure gets padded properly to the > > size specified. Only on ARM/MIPS etc, structures get automatically aligned > > according to the element in the structure requiring the greatest alignment. > > I'd turn this around and say only on x86 do structures not get aligned this > way. On any riscy architecture, unaligned accesses are expensive, which is > why the ABI there mandates this. > The alignment of the structure to the largest alignment of the member is required by the ABIs on i386 and amd64 as well.
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