On Wed, May 21, 2008 at 07:26:09PM +0200, Gabriel C wrote:
quoted text
>   CC      arch/um/sys-x86_64/ksyms.o
> arch/um/sys-x86_64/ksyms.c:5: error: '__memcpy' undeclared here (not in a function)
> arch/um/sys-x86_64/ksyms.c:5: warning: type defaults to 'int' in declaration of '__memcpy'

Does the patch below help?  There's gcc-version-dependent logic in
include/asm-x86/string_64.h which decides whether to declare memcpy or
__memcpy and it looks like you're hitting that.

	     	      Jeff

-- 
Work email - jdike at linux dot intel dot com

Index: linux-2.6.22/arch/um/sys-x86_64/ksyms.c
===================================================================
--- linux-2.6.22.orig/arch/um/sys-x86_64/ksyms.c	2008-04-23 13:07:23.000000000 -0400
+++ linux-2.6.22/arch/um/sys-x86_64/ksyms.c	2008-05-21 16:03:03.000000000 -0400
@@ -2,4 +2,8 @@
 #include "asm/string.h"
 
 /*XXX: we need them because they would be exported by x86_64 */
+#if (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) || __GNUC__ > 4
+EXPORT_SYMBOL(memcpy);
+#else
 EXPORT_SYMBOL(__memcpy);
+#endif
--
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