[EMAIL PROTECTED] wrote:
>
> In include/asm-x86_64/string.h there are such comments:
>
> /* Use C out of line version for memcmp */
> #define memcmp __builtin_memcmp
> int memcmp(const void * cs,const void * ct,size_t count);
>
> This would mean that if the compiler does not decide to use __builtin_memcmp,
> it emits a call to memcmp to be satisfied by the C out-of-line version in
> lib/string.c. What happens is that after preprocessing, in lib/string.i you
> may find the definition of "__builtin_strcmp".
>
> Actually, by accident, in the object you will find the definition of
> strcmp and such (maybe a trick intended to redirect calls to __builtin_memcmp
> to the default memcmp when the definition is not expanded); however, this
> particular case is not a documented feature as far as I can see.
>
> Also, the EXPORT_SYMBOL does not work, so it's duplicated in the arch.
This breaks the x86 build. I guess the below is right.
You wanna check other architectures please?
diff -puN
arch/i386/kernel/i386_ksyms.c~x86_64-make-string-func-definition-work-as-intended-fix
arch/i386/kernel/i386_ksyms.c
---
25/arch/i386/kernel/i386_ksyms.c~x86_64-make-string-func-definition-work-as-intended-fix
2005-05-03 00:16:36.000000000 -0700
+++ 25-akpm/arch/i386/kernel/i386_ksyms.c 2005-05-03 00:16:44.000000000
-0700
@@ -169,10 +169,6 @@ EXPORT_SYMBOL(rtc_lock);
EXPORT_SYMBOL_GPL(set_nmi_callback);
EXPORT_SYMBOL_GPL(unset_nmi_callback);
-#undef memcmp
-extern int memcmp(const void *,const void *,__kernel_size_t);
-EXPORT_SYMBOL(memcmp);
-
EXPORT_SYMBOL(register_die_notifier);
#ifdef CONFIG_HAVE_DEC_LOCK
EXPORT_SYMBOL(_atomic_dec_and_lock);
_
-------------------------------------------------------
This SF.Net email is sponsored by: NEC IT Guy Games.
Get your fingers limbered up and give it your best shot. 4 great events, 4
opportunities to win big! Highest score wins.NEC IT Guy Games. Play to
win an NEC 61 plasma display. Visit http://www.necitguy.com/?r=20
_______________________________________________
User-mode-linux-devel mailing list
User-mode-linux-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
