Re: 2.6.23-rc1-mm1 -- mostly fails to build

Sam Ravnborg
2007-07-25T17:03:20Z

On Wed, Jul 25, 2007 at 05:36:56PM +0100, Andy Whitcroft wrote:
> ia64 (elm3b10):
>
> LD vmlinux.o
> ld: dynreloc miscount for kernel/built-in.o, section .opd
> ld: can not edit opd Bad value
> make: *** [vmlinux.o] Error 1

On powerpc we had something similar. It was a binutils bug
(see: http://article.gmane.org/gmane.comp.gnu.binutils/33650)

I tracked it down to be fixed by the following:

diff --git a/include/linux/mm.h b/include/linux/mm.h
index c456c3a..2ea222f 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1246,7 +1246,7 @@ void drop_slab(void);
extern int randomize_va_space;
#endif

-__attribute__((weak)) const char *arch_vma_name(struct vm_area_struct *vma);
+//__attribute__((weak)) const char *arch_vma_name(struct vm_area_struct *vma);

#endif /* __KERNEL__ */
#endif /* _LINUX_MM_H */

This is obviously just a quick hack and I used brutal force
to find out how to fix it - but does not yet understand why this
weak prototype cause the bug.

Sam