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