[PATCH] 2.4.20 unresolved symbols with K7/3DNOW

From: dose (dose@infernum.com)
Date: Sat Mar 22 2003 - 22:49:35 EST


This one seems to have been around for quite a while (2.4.0-textX ?)...when
compiling with CONFIG_MK7=y ("Athlon/Duron/K7" as Processor family) a lot of
modules aren't able to resolve the symbol _mmx_memcpy. This is caused by
CONFIG_X86_USE_3DNOW=y and the problem lies in a wrong symbol export in
arch/i386/kernel/i386_ksyms.c - I wonder why this still hasn't been fixed as
it doesn't seem like a hard thing to do for someone who's into kernel
patching...being new to that, it took me about 3 hours.

Here's the patch (it's just one line so it should work for other 2.4.x
kernels as well)

diff -urN linux-2.4.20/arch/i386/kernel/i386_ksyms.c.orig
linux-2.4.20/arch/i386/kernel/i386_ksyms.c
--- linux-2.4.20/arch/i386/kernel/i386_ksyms.c.orig Sun Mar 23 04:24:06
2003
+++ linux-2.4.20/arch/i386/kernel/i386_ksyms.c Sun Mar 23 04:24:18 2003
@@ -120,7 +120,7 @@
 #endif

 #ifdef CONFIG_X86_USE_3DNOW
-EXPORT_SYMBOL(_mmx_memcpy);
+EXPORT_SYMBOL_NOVERS(_mmx_memcpy);
 EXPORT_SYMBOL(mmx_clear_page);
 EXPORT_SYMBOL(mmx_copy_page);
 #endif

--
"enemy of the sun, we are the subterranean
apocalyptic daydreams, casual delirium"
http://www.caffeineshock.com - http://www.dose-xp.org
http://www.blended.org - http://www.infernum.com

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