46 lines
1.0 KiB
ArmAsm
46 lines
1.0 KiB
ArmAsm
|
/*
|
||
|
|
* This file contains miscellaneous low-level functions.
|
||
|
|
* Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
|
||
|
|
*
|
||
|
|
* Largely rewritten by Cort Dougan (cort@cs.nmt.edu)
|
||
|
|
* and Paul Mackerras.
|
||
|
|
*
|
||
|
|
* Adapted for iSeries by Mike Corrigan (mikejc@us.ibm.com)
|
||
|
|
* PPC64 updates by Dave Engebretsen (engebret@us.ibm.com)
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU General Public License
|
||
|
|
* as published by the Free Software Foundation; either version
|
||
|
|
* 2 of the License, or (at your option) any later version.
|
||
|
|
*/
|
||
|
|
#include <asm/ppc_asm.h>
|
||
|
|
|
||
|
|
.text
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Returns (address we are running at) - (address we were linked at)
|
||
|
|
* for use before the text and data are mapped to KERNELBASE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
_GLOBAL(reloc_offset)
|
||
|
|
mflr r0
|
||
|
|
bl 1f
|
||
|
|
1: mflr r3
|
||
|
|
LOAD_REG_IMMEDIATE(r4,1b)
|
||
|
|
subf r3,r4,r3
|
||
|
|
mtlr r0
|
||
|
|
blr
|
||
|
|
|
||
|
|
/*
|
||
|
|
* add_reloc_offset(x) returns x + reloc_offset().
|
||
|
|
*/
|
||
|
|
_GLOBAL(add_reloc_offset)
|
||
|
|
mflr r0
|
||
|
|
bl 1f
|
||
|
|
1: mflr r5
|
||
|
|
LOAD_REG_IMMEDIATE(r4,1b)
|
||
|
|
subf r5,r4,r5
|
||
|
|
add r3,r3,r5
|
||
|
|
mtlr r0
|
||
|
|
blr
|