mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-12 14:23:00 +00:00
118 lines
3.4 KiB
C
118 lines
3.4 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2011 The Chromium OS Authors.
|
||
|
|
*
|
||
|
|
* 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.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
* GNU General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with this program; if not, write to the Free Software
|
||
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
||
|
|
* MA 02111-1307 USA
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* Taken from Linux kernel, commit f56c3196 */
|
||
|
|
|
||
|
|
#ifndef _ASM_GENERIC_SECTIONS_H_
|
||
|
|
#define _ASM_GENERIC_SECTIONS_H_
|
||
|
|
|
||
|
|
/* References to section boundaries */
|
||
|
|
|
||
|
|
extern char _text[], _stext[], _etext[];
|
||
|
|
extern char _data[], _sdata[], _edata[];
|
||
|
|
extern char __bss_start[], __bss_stop[];
|
||
|
|
extern char __init_begin[], __init_end[];
|
||
|
|
extern char _sinittext[], _einittext[];
|
||
|
|
extern char _end[];
|
||
|
|
extern char __per_cpu_load[], __per_cpu_start[], __per_cpu_end[];
|
||
|
|
extern char __kprobes_text_start[], __kprobes_text_end[];
|
||
|
|
extern char __entry_text_start[], __entry_text_end[];
|
||
|
|
extern char __initdata_begin[], __initdata_end[];
|
||
|
|
extern char __start_rodata[], __end_rodata[];
|
||
|
|
|
||
|
|
/* Start and end of .ctors section - used for constructor calls. */
|
||
|
|
extern char __ctors_start[], __ctors_end[];
|
||
|
|
|
||
|
|
/* function descriptor handling (if any). Override
|
||
|
|
* in asm/sections.h */
|
||
|
|
#ifndef dereference_function_descriptor
|
||
|
|
#define dereference_function_descriptor(p) (p)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* random extra sections (if any). Override
|
||
|
|
* in asm/sections.h */
|
||
|
|
#ifndef arch_is_kernel_text
|
||
|
|
static inline int arch_is_kernel_text(unsigned long addr)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef arch_is_kernel_data
|
||
|
|
static inline int arch_is_kernel_data(unsigned long addr)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* U-Boot-specific things begin here */
|
||
|
|
|
||
|
|
/* Start of U-Boot text region */
|
||
|
|
extern char __text_start[];
|
||
|
|
|
||
|
|
/* This marks the end of the text region which must be relocated */
|
||
|
|
extern char __image_copy_end[];
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This is the U-Boot entry point - prior to relocation it should be same
|
||
|
|
* as __text_start
|
||
|
|
*/
|
||
|
|
extern void _start(void);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* ARM needs to use offsets for symbols, since the values of some symbols
|
||
|
|
* are not resolved prior to relocation (and are just 0). Maybe this can be
|
||
|
|
* resolved, or maybe other architectures are similar, iwc this should be
|
||
|
|
* promoted to an architecture option.
|
||
|
|
*/
|
||
|
|
#ifdef CONFIG_ARM
|
||
|
|
#define CONFIG_SYS_SYM_OFFSETS
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef CONFIG_SYS_SYM_OFFSETS
|
||
|
|
/* Start/end of the relocation entries, as an offset from _start */
|
||
|
|
extern ulong _rel_dyn_start_ofs;
|
||
|
|
extern ulong _rel_dyn_end_ofs;
|
||
|
|
|
||
|
|
/* Start/end of the relocation symbol table, as an offset from _start */
|
||
|
|
extern ulong _dynsym_start_ofs;
|
||
|
|
|
||
|
|
/* End of the region to be relocated, as an offset form _start */
|
||
|
|
extern ulong _image_copy_end_ofs;
|
||
|
|
|
||
|
|
extern ulong _bss_start_ofs; /* BSS start relative to _start */
|
||
|
|
extern ulong _bss_end_ofs; /* BSS end relative to _start */
|
||
|
|
extern ulong _end_ofs; /* end of image relative to _start */
|
||
|
|
|
||
|
|
extern ulong _TEXT_BASE; /* code start */
|
||
|
|
|
||
|
|
#else /* don't use offsets: */
|
||
|
|
|
||
|
|
/* Exports from the Linker Script */
|
||
|
|
extern ulong __data_end;
|
||
|
|
extern ulong __rel_dyn_start;
|
||
|
|
extern ulong __rel_dyn_end;
|
||
|
|
extern ulong __bss_end;
|
||
|
|
|
||
|
|
extern ulong _TEXT_BASE; /* code start */
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* _ASM_GENERIC_SECTIONS_H_ */
|