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

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 [off-list ref]
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