acrn-kernel/arch
Paolo 'Blaisorblade' Giarrusso 0c28130b5c [PATCH] x86_64: make string func definition work as intended
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.

I simply added some #undef to lib/string.c and removed the (now duplicated)
exports in x86-64 and UML/x86_64 subarchs (the second ones are introduced by
another patch I just posted for -mm).

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
CC: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-05 16:36:33 -07:00
..
alpha [PATCH] ISA DMA Kconfig fixes - part 1 2005-05-04 07:33:13 -07:00
arm [PATCH] ARM: 2665/1: kill warnings in entry-armv.S 2005-05-05 23:24:45 +01:00
arm26 [PATCH] ISA DMA Kconfig fixes - part 1 2005-05-04 07:33:13 -07:00
cris [PATCH] convert that currently tests _NSIG directly to use valid_signal() 2005-05-01 08:59:14 -07:00
frv [PATCH] convert that currently tests _NSIG directly to use valid_signal() 2005-05-01 08:59:14 -07:00
h8300 [PATCH] convert that currently tests _NSIG directly to use valid_signal() 2005-05-01 08:59:14 -07:00
i386 [PATCH] x86_64: make string func definition work as intended 2005-05-05 16:36:33 -07:00
ia64 [PATCH] ppc64: remove hidden -fno-omit-frame-pointer for schedule.c 2005-05-05 16:36:32 -07:00
m32r [PATCH] convert that currently tests _NSIG directly to use valid_signal() 2005-05-01 08:59:14 -07:00
m68k [PATCH] convert that currently tests _NSIG directly to use valid_signal() 2005-05-01 08:59:14 -07:00
m68knommu [PATCH] ISA DMA Kconfig fixes - part 1 2005-05-04 07:33:13 -07:00
mips Merge with master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6.git 2005-05-05 13:59:37 +01:00
parisc [PATCH] ISA DMA Kconfig fixes - part 1 2005-05-04 07:33:13 -07:00
ppc [PATCH] ppc64: remove hidden -fno-omit-frame-pointer for schedule.c 2005-05-05 16:36:32 -07:00
ppc64 [PATCH] ppc64: pgtable.h and other header cleanups 2005-05-05 16:36:32 -07:00
s390 Merge with master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6.git 2005-05-03 08:14:09 +01:00
sh [PATCH] ISA DMA Kconfig fixes - part 1 2005-05-04 07:33:13 -07:00
sh64 [PATCH] convert that currently tests _NSIG directly to use valid_signal() 2005-05-01 08:59:14 -07:00
sparc [SPARC]: Remove legacy stuff from cpu_idle(). 2005-05-05 14:53:01 -07:00
sparc64 [SPARC]: Remove legacy stuff from cpu_idle(). 2005-05-05 14:53:01 -07:00
um [PATCH] x86_64: make string func definition work as intended 2005-05-05 16:36:33 -07:00
v850 [PATCH] convert that currently tests _NSIG directly to use valid_signal() 2005-05-01 08:59:14 -07:00
x86_64 [PATCH] x86_64: make string func definition work as intended 2005-05-05 16:36:33 -07:00