Re: [uml-devel] uml-2.6.8-rc2 (2.6.8-rc2 w/ uml-patch-2.6.7-01)

[David T Hollis <dhollis@davehollis.com>]

On Fri, 2004-07-23 at 21:43 +0000, gboutwel wrote:
> vmlinux(.text+0x5fcd8): In function `locate_fd':
> 
> : undefined reference to `find_next_zero_bit'
> 
> vmlinux(.text+0x7e3f1): In function `scan_bitmap_block':
> 
> : undefined reference to `find_next_zero_bit'
> 
> vmlinux(.text+0x9f49e): In function `reiserfs_in_journal':
> 
> : undefined reference to `find_next_zero_bit'
> 
> vmlinux(.text+0xa6bd0): more undefined references to `find_next_zero_bit'
> 
> follow
> 
> vmlinux(.text+0xb7905): In function `sub_alloc':
> 
> : undefined reference to `find_next_bit'
> 
> vmlinux(.init.text+0x43d0): In function `__alloc_bootmem_core':
> 
> : undefined reference to `find_next_zero_bit'
> 
> collect2: ld returned 1 exit status
> 
> make: *** [linux] Error 1
> 
> 
> 
> Probably something simple, but I wanted to discuss with folks
> 
> more in the now on if the above (stdio_console) fix was the right
> 
> one, and to find out if anyone else has an idea of how to fixe
> 
> the find_next_zero_bit error.
> 

I ran into this around a week or so ago as well.  Unfortunately, I don't
have a patch but here is the rough idea of what I did to work around it.
find_next_zero_bit is defined in arch/i386/lib/bitops.c.  If you look in
arch/um/sys-i386, a couple files get symlinked from other parts of the
tree (see the Makefile).  If you add bitops.c to this, you will get past
the find_next_zero_bit problem.  You would add bitops.o to the obj-y,
bitops.c to SYMLINKS, bitops.c-dir := arch/i386/lib.  I think thats
about it.

Good luck
-- 
David T Hollis <dhollis@davehollis.com>



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