Re: x86-64: Maintain 16-byte stack alignment

[Herbert Xu]

On Thu, Jan 12, 2017 at 09:03:18AM -0600, Josh Poimboeuf wrote:
> 
> For the entry code, could we just replace all calls with CALL_ALIGNED?
> That might be less intrusive than trying to adjust all the pt_regs
> accesses.
> 
> Then to ensure that nobody ever uses 'call' directly:
> 
>   '#define call please-use-CALL-ALIGNED-instead-of-call'
> 
> I think that would be possible if CALL_ALIGNED were a ".macro".

The trouble with that is that you have got things like TRACE_IRQS_OFF
which are also used outside of the entry code.

Cheers,
-- 
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
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