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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* sections.h: linkage layout variables
2 *
3 * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 */
11
12#ifndef _ASM_SECTIONS_H
13#define _ASM_SECTIONS_H
14
15#ifndef __ASSEMBLY__
16
17#include <linux/types.h>
18#include <asm-generic/sections.h>
19
20#ifdef __KERNEL__
21
22/*
23 * we don't want to put variables in the GP-REL section if they're not used very much - that would
24 * be waste since GP-REL addressing is limited to GP16+/-2048
25 */
26#define __nongpreldata __attribute__((section(".data")))
27#define __nongprelbss __attribute__((section(".bss")))
28
29/*
30 * linker symbols
31 */
32extern const void __kernel_image_start, __kernel_image_end, __page_offset;
33
34extern unsigned long __nongprelbss memory_start;
35extern unsigned long __nongprelbss memory_end;
36extern unsigned long __nongprelbss rom_length;
37
38/* determine if we're running from ROM */
39static inline int is_in_rom(unsigned long addr)
40{
41 return 0; /* default case: not in ROM */
42}
43
44#endif
45#endif
46#endif /* _ASM_SECTIONS_H */