| /* | |
| * 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 |