Re: 2.4.19 make allmodconfig - undefined symbols

[Keith Owens]

On Sun, 4 Aug 2002 14:35:13 +0200, 
Willy Tarreau <[e-mail]> wrote:
>On Sun, Aug 04, 2002 at 08:13:20PM +1000, Keith Owens wrote:
>> 2.4.19 make allmodconfig.  Besides the perennial drivers/net/wan/comx.o
>> wanting proc_get_inode, there was only one undefined symbol.  In the
>> extremely unlikely event that binfmt_elf is a module (how do you load
>> modules when binfmt_elf is a module?), smp_num_siblings is unresolved.
>
>I also get an unresolved reference to __io_virt_debug in misc.o:puts()
>when building bzImage. If you don't get it, it means that my tree is
>corrupted.

Neither.  It is a problem with CONFIG_DEBUG_IOVIRT which allmod and
allyesconfig turn on.  My builds stop at vmlinux and do not build
bzImage so I did not detect this problem.  The outb_p calls in misc.c
need fixing for CONFIG_DEBUG_IOVIRT=y, or force CONFIG_DEBUG_IOVIRT=n.

Interesting that the comment for CONFIG_DEBUG_IOVIRT says "Temporary
debugging check to catch old code using unmapped ISA addresses. Will be
removed in 2.4".