1/*
2 * This file contains miscellaneous low-level functions.
3 *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
4 *
5 * Largely rewritten by Cort Dougan (cort@cs.nmt.edu)
6 * and Paul Mackerras.
7 *
8 * Adapted for iSeries by Mike Corrigan (mikejc@us.ibm.com)
9 * PPC64 updates by Dave Engebretsen (engebret@us.ibm.com)
10 *
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License
13 * as published by the Free Software Foundation; either version
14 * 2 of the License, or (at your option) any later version.
15 */
16#include <asm/ppc_asm.h>
17
18	.text
19
20/*
21 * Returns (address we are running at) - (address we were linked at)
22 * for use before the text and data are mapped to KERNELBASE.
23 */
24
25_GLOBAL(reloc_offset)
26	mflr	r0
27	bl	1f
281:	mflr	r3
29	LOAD_REG_IMMEDIATE(r4,1b)
30	subf	r3,r4,r3
31	mtlr	r0
32	blr
33
34/*
35 * add_reloc_offset(x) returns x + reloc_offset().
36 */
37_GLOBAL(add_reloc_offset)
38	mflr	r0
39	bl	1f
401:	mflr	r5
41	LOAD_REG_IMMEDIATE(r4,1b)
42	subf	r5,r4,r5
43	add	r3,r3,r5
44	mtlr	r0
45	blr
46