Re: [PATCH] x86: Align jump targets to 1 byte boundaries

Ingo Molnar
2015-05-18T06:49:01Z

* Josh Triplett <josh@joshtriplett.org> wrote:

> > > Also, you've only applied these to 64-bit; could you please
> > > apply them to both 32-bit and 64-bit, since many embedded
> > > systems aiming for small code size use 32-bit? (Unless 32-bit
> > > already defaults to these.)
> >
> > First things first - 64-bit is getting far more testing these days
> > than 32-bit.
>
> What testing do you want to see on these patches before applying
> them to 32-bit as well?

Not much specific testing is needed I think, basically just
'no regressions for a few weeks'.

These alignment changes should be pretty safe, since -Os (via
CONFIG_CC_OPTIMIZE_FOR_SIZE=y) already enabled these.

Thanks,

Ingo