| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* 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 | */ |
| 32 | extern const void __kernel_image_start, __kernel_image_end, __page_offset; |
| 33 | |
| 34 | extern unsigned long __nongprelbss memory_start; |
| 35 | extern unsigned long __nongprelbss memory_end; |
| 36 | extern unsigned long __nongprelbss rom_length; |
| 37 | |
| 38 | /* determine if we're running from ROM */ |
| 39 | static 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 */ |