Re: [PATCH 1/1] POWERPC: Fix ppc32 compile with gcc+SSP in 2.6.16

[Olaf Hering <olh@suse.de>]

 On Tue, Apr 04, John Mylchreest wrote:

> On Sun, Apr 02, 2006 at 01:42:15PM +0200, Olaf Hering <olh@suse.de> wrote:
> >  On Sun, Apr 02, John Mylchreest wrote:
> > 
> > > Going from that, I can push a patch for gcc upstream to remove the
> > > __KERNEL__ dep, but gcc4.1 ships with ssp by standard, and the semantics
> > > between the IBM patch for SSP applied to gcc-3 and ggc-4 have changed.
> > 
> > gcc4.1 has no obvious problems with --enable-ssp
> > 
> > > -fno-stack-protector would work for gcc4, but for gcc3 it could still be
> > > patially enabled, and requires -fno-stack-protector-all. Mind If I ask
> > > whats incorrect about defining __KERNEL__ for the bootcflags?
> > 
> > arch/powerpc/boot is no kernel code, its supposed to be selfcontained.
> > Prepare a patch which uses the cc-option macro.
> 
> As requested, please see attached a small patch which rectifies this
> with negating cflags. The cc-option macro won't always work, and as such
> I have declared a new macro to honour $(CROSS32CC).

I think this should go into the main makefile, HOSTCFLAGS or similar. If
you look around quickly in the gentoo bugzilla, all non-userland
packages (grub, xen, kernel etc.) require the -fno-feature.