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 */ 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 */ 47