Bug#536354: linux-2.6: [s390,lenny] kernel panic during boot
On Wednesday 15 July 2009, dann frazier wrote:
> On Mon, Jul 13, 2009 at 11:22:12AM +0200, Frans Pop wrote:
> > Linus has committed a different solution: replacing -fwrapv by
> > -fno-strict-overflow.
> > See upstream commit a137802ee839ace40079bebde24cfb416f73208a.
>
> I tried applying that fix, but it causes a build failure because the
> compiler we use for lenny (gcc-4.1) doesn't support it. It seems
> strange that upstream would drop '-fwrapv' due to problems w/
> gcc-4.1.x, but then require an option that's not supported by gcc-4.1
> at all. Maybe that option got added in the 4.1.x stream after Debian
> released it? Maybe I'm missing a kernel change that would prevent this
> option from being used in 4.1?
That's weird. IIUC the 'call cc-option' function is supposed to check
whether an option is supported by the gcc version being used and only
actually add it if it is.
See Documentation/kbuild/makefiles.txt and scripts/Kbuild.include.
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