LXR uboot/include/asm-generic/sections.h

   1/* SPDX-License-Identifier: GPL-2.0+ */
   2/*
   3 * Copyright (c) 2011 The Chromium OS Authors.
   4 */
   5
   6/* Taken from Linux kernel, commit f56c3196 */
   7
   8#ifndef _ASM_GENERIC_SECTIONS_H_
   9#define _ASM_GENERIC_SECTIONS_H_
  10
  11#include <linux/types.h>
  12
  13/* References to section boundaries */
  14
  15extern char _text[], _stext[], _etext[];
  16extern char _data[], _sdata[], _edata[];
  17extern char __bss_start[], __bss_stop[];
  18extern char __init_begin[], __init_end[];
  19extern char _sinittext[], _einittext[];
  20extern char _end[], _init[];
  21extern char __per_cpu_load[], __per_cpu_start[], __per_cpu_end[];
  22extern char __kprobes_text_start[], __kprobes_text_end[];
  23extern char __entry_text_start[], __entry_text_end[];
  24extern char __initdata_begin[], __initdata_end[];
  25extern char __start_rodata[], __end_rodata[];
  26extern char __efi_helloworld_begin[];
  27extern char __efi_helloworld_end[];
  28extern char __efi_var_file_begin[];
  29extern char __efi_var_file_end[];
  30
  31/* Private data used by of-platdata devices/uclasses */
  32extern char __priv_data_start[], __priv_data_end[];
  33
  34/* Start and end of .ctors section - used for constructor calls. */
  35extern char __ctors_start[], __ctors_end[];
  36
  37/* function descriptor handling (if any).  Override
  38 * in asm/sections.h */
  39#ifndef dereference_function_descriptor
  40#define dereference_function_descriptor(p) (p)
  41#endif
  42
  43/* random extra sections (if any).  Override
  44 * in asm/sections.h */
  45#ifndef arch_is_kernel_text
  46static inline int arch_is_kernel_text(unsigned long addr)
  47{
  48        return 0;
  49}
  50#endif
  51
  52#ifndef arch_is_kernel_data
  53static inline int arch_is_kernel_data(unsigned long addr)
  54{
  55        return 0;
  56}
  57#endif
  58
  59/* U-Boot-specific things begin here */
  60
  61/* Start of U-Boot text region */
  62extern char __text_start[];
  63
  64/* This marks the end of the text region which must be relocated */
  65extern char __image_copy_end[];
  66
  67/*
  68 * This is the U-Boot entry point - prior to relocation it should be same
  69 * as __text_start
  70 */
  71extern void _start(void);
  72
  73/*
  74 * ARM defines its symbols as char[]. Other arches define them as ulongs.
  75 */
  76#ifdef CONFIG_ARM
  77
  78extern char __bss_start[];
  79extern char __bss_end[];
  80extern char __image_copy_start[];
  81extern char __image_copy_end[];
  82extern char _image_binary_end[];
  83extern char __rel_dyn_start[];
  84extern char __rel_dyn_end[];
  85
  86#else /* don't use offsets: */
  87
  88/* Exports from the Linker Script */
  89extern ulong __data_end;
  90extern ulong __rel_dyn_start;
  91extern ulong __rel_dyn_end;
  92extern ulong __bss_end;
  93extern ulong _image_binary_end;
  94
  95extern ulong _TEXT_BASE;        /* code start */
  96
  97#endif
  98
  99#endif /* _ASM_GENERIC_SECTIONS_H_ */
 100