Re: [PATCH] fixed: CRC32=y && 8193TOO=m unresolved symbols

From: David Woodhouse (
Date: Wed Jun 04 2003 - 10:30:49 EST

On Wed, 2003-06-04 at 16:28, Jeff Garzik wrote:

> You can't EXPORT_SYMBOL from a header.
> This sounds like Kconfig or Makefile bugs to me... all the
> export-symbol stuff should already be in place.
> Can you post your .config and the exact build errors you are getting?

It's because lib/crc32.o isn't actually _referenced_ by anything, hence
isn't actually pulled into vmlinux from lib/lib.a.

My fix in the 2.4 tree is to export its symbols from kernel/ksyms.c
#ifdef CONFIG_CRC32, and to export its symbols from lib/crc32.c
#ifndef CONFIG_CRC32.


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