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SubjectRe: Linus 2.6.23-rc1
On Mon, Jul 23, 2007 at 01:31:00AM +0200, Andi Kleen wrote:
> On Monday 23 July 2007 01:23:38 Andre Noll wrote:
> > On 00:22, Andi Kleen wrote:
> > > > /usr/bin/ld: section .text [ffffffffff700500 -> ffffffffff7007e3] overlaps section .gnu.version_d [ffffffffff7004d8 -> ffffffffff70050f]
> > >
> > > Does this patch fix it?
> >
> > Nope, with 0x600 I still get the same error. But it helped to further
> > increase VDSO_TEXT_OFFSET to 0xc00. I tried 0x700, 0x800,... and 0xc00
> > is the smallest value in this series that makes the error go away, i.e.
> > the patch below works for me.
>
> Can you send (privately) readelf -a output from your vdso.so ?
> Your linker must be doing something weird.
>
> 0xc00 is quite wasteful.

I think Roland's --build-id doesn't create very big section, the likely
culprit would be a hacked up ld that e.g. defaults to --hash-style=both.
Can you retry with --hash-style=sysv? vdso really has to include the
traditional .hash section, otherwise it wouldn't be compatible with
old glibcs, and an additional .gnu.hash might be an overkill for it
- doesn't the vdso define only very few symbols?

Jakub
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