linux-stable/arch/sparc/lib/U3copy_from_user.S
David S. Miller 40bdac7dbc sparc64: Kill .fixup section bloat.
This is an implementation of a suggestion made by Chris Torek:
--------------------
Something else I noticed in passing: the EX and EX_LD/EX_ST macros
scattered throughout the various .S files make a fair bit of .fixup
code, all of which does the same thing.  At the cost of one symbol
in copy_in_user.S, you could just have one common two-instruction
retl-and-mov-1 fixup that they all share.
--------------------

The following is with a defconfig build:

   text	   data	    bss	    dec	    hex	filename
3972767	 344024	 584449	4901240	 4ac978	vmlinux.orig
3968887	 344024	 584449	4897360	 4aba50	vmlinux

Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-08 22:00:55 -08:00

18 lines
406 B
ArmAsm

/* U3copy_from_user.S: UltraSparc-III optimized copy from userspace.
*
* Copyright (C) 1999, 2000, 2004 David S. Miller (davem@redhat.com)
*/
#define EX_LD(x) \
98: x; \
.section __ex_table,"a";\
.align 4; \
.word 98b, __retl_one; \
.text; \
.align 4;
#define FUNC_NAME U3copy_from_user
#define LOAD(type,addr,dest) type##a [addr] %asi, dest
#define EX_RETVAL(x) 0
#include "U3memcpy.S"