Re: [PATCH] x86/boot/compressed/64: Define __force_order only when CONFIG_RANDOMIZE_BASE is unset
From: Kirill A. Shutemov
Date: Mon Dec 23 2019 - 18:08:58 EST
On Mon, Dec 23, 2019 at 02:25:02PM -0800, Khem Raj wrote:
> On Mon, Dec 23, 2019 at 9:10 AM Kirill A. Shutemov <kirill@xxxxxxxxxxxxx> wrote:
> >
> > On Sat, Dec 21, 2019 at 07:18:13AM -0800, Khem Raj wrote:
> > > Since arch/x86/boot/compressed/Makefile overrides global CFLAGS it loses
> > > -fno-common option which would have caught this
> >
> > If this doesn't cause any visible problems, why bother?
> >
>
> it does break builds with gcc trunk as of now e.g.
>
> > Hopefully, we will be able to drop it altogether once we ditch GCC 4.X
> > support.
> >
>
> gcc10 is switching defaults to -fno-common so we need to solve this one way or
> other, I am not sure if gcc 4.x will be dropped before gcc10 release
> which would be
> in mid of 2020
Okay, it makes sense then. Please include this info into the commit
message.
Also, I wounder if it would be cleaner to define both of them as __weak?
--
Kirill A. Shutemov