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kernel/linux-imx6_3.14.28/include/asm-generic/sections.h 2.04 KB
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  #ifndef _ASM_GENERIC_SECTIONS_H_
  #define _ASM_GENERIC_SECTIONS_H_
  
  /* References to section boundaries */
  
  /*
   * Usage guidelines:
   * _text, _data: architecture specific, don't use them in arch-independent code
   * [_stext, _etext]: contains .text.* sections, may also contain .rodata.*
   *                   and/or .init.* sections
   * [_sdata, _edata]: contains .data.* sections, may also contain .rodata.*
   *                   and/or .init.* sections.
   * [__start_rodata, __end_rodata]: contains .rodata.* sections
   * [__init_begin, __init_end]: contains .init.* sections, but .init.text.*
   *                   may be out of this range on some architectures.
   * [_sinittext, _einittext]: contains .init.text.* sections
   * [__bss_start, __bss_stop]: contains BSS sections
   *
   * Following global variables are optional and may be unavailable on some
   * architectures and/or kernel configurations.
   *	_text, _data
   *	__kprobes_text_start, __kprobes_text_end
   *	__entry_text_start, __entry_text_end
   *	__ctors_start, __ctors_end
   */
  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 __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
  
  #endif /* _ASM_GENERIC_SECTIONS_H_ */