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SubjectRe: next-20081106: undefined reference to `__per_cpu_start'
On Fri, Nov 07, 2008 at 04:21:14PM +1100, Stephen Rothwell wrote:
> Hi Christoph,
>
> On Thu, 6 Nov 2008 13:15:07 -0600 (CST) Christoph Lameter <cl@linux-foundation.org> wrote:
> >
> > On Thu, 6 Nov 2008, Alexey Dobriyan wrote:
> >
> > > On blackfin-BF526-EZBRD and other blackfins:
> > >
> > > LD .tmp_vmlinux1
> > > mm/built-in.o: In function `cpu_alloc_init':
> > > (.init.text+0x1486): undefined reference to `__per_cpu_start'
> > > mm/built-in.o: In function `cpu_alloc_init':
> > > (.init.text+0x148c): undefined reference to `__per_cpu_start'
> > > mm/built-in.o: In function `cpu_alloc_init':
> > > (.init.text+0x1492): undefined reference to `__per_cpu_end'
> > > mm/built-in.o: In function `cpu_alloc_init':
> > > (.init.text+0x1496): undefined reference to `__per_cpu_end'
> >
> > Any contigencies for __per_cpu_start/end in your blackfin vmlinux.lds.h?
> > That is where these symbols are defined
> >
> > Or did you use generic percpu support and set
> > CONFIG_HAVE_ZERO_BASED_PER_CPU?
>
> Also a avr32 allnoconfig
> (http://kisskb.ellerman.id.au/kisskb/buildresult/53233/) gets:
>
> backing-dev.c:(.init.text+0xc4c): undefined reference to `__per_cpu_start'
> backing-dev.c:(.init.text+0xc50): undefined reference to `__per_cpu_end'
>
> and avr32 defconfig
> (http://kisskb.ellerman.id.au/kisskb/buildresult/53225/) gets:
>
> vmstat.c:(.init.text+0xff0): undefined reference to `__per_cpu_start'
> vmstat.c:(.init.text+0xff4): undefined reference to `__per_cpu_end'

BTW, on alpha I get

mm/cpu_alloc.c:146:1: error: pasting "per_cpu__" and "(" does not give a valid preprocessing token


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