text: #ifndef _LINUX_ELFCORE_H
  #define _LINUX_ELFCORE_H
  
  #include <linux/user.h>
  #include <linux/bug.h>
  #include <asm/elf.h>
  #include <uapi/linux/elfcore.h>
  
  static inline void elf_core_copy_regs(elf_gregset_t *elfregs, struct pt_regs *regs)
  {
  #ifdef ELF_CORE_COPY_REGS
  	ELF_CORE_COPY_REGS((*elfregs), regs)
  #else
  	BUG_ON(sizeof(*elfregs) != sizeof(*regs));
  	*(struct pt_regs *)elfregs = *regs;
  #endif
  }
  
  static inline void elf_core_copy_kernel_regs(elf_gregset_t *elfregs, struct pt_regs *regs)
  {
  #ifdef ELF_CORE_COPY_KERNEL_REGS
  	ELF_CORE_COPY_KERNEL_REGS((*elfregs), regs);
  #else
  	elf_core_copy_regs(elfregs, regs);
  #endif
  }
  
  static inline int elf_core_copy_task_regs(struct task_struct *t, elf_gregset_t* elfregs)
  {
  #if defined (ELF_CORE_COPY_TASK_REGS)
  	return ELF_CORE_COPY_TASK_REGS(t, elfregs);
  #elif defined (task_pt_regs)
  	elf_core_copy_regs(elfregs, task_pt_regs(t));
  #endif
  	return 0;
  }
  
  extern int dump_fpu (struct pt_regs *, elf_fpregset_t *);
  
  static inline int elf_core_copy_task_fpregs(struct task_struct *t, struct pt_regs *regs, elf_fpregset_t *fpu)
  {
  #ifdef ELF_CORE_COPY_FPREGS
  	return ELF_CORE_COPY_FPREGS(t, fpu);
  #else
  	return dump_fpu(regs, fpu);
  #endif
  }
  
  #ifdef ELF_CORE_COPY_XFPREGS
  static inline int elf_core_copy_task_xfpregs(struct task_struct *t, elf_fpxregset_t *xfpu)
  {
  	return ELF_CORE_COPY_XFPREGS(t, xfpu);
  }
  #endif
  
  /*
   * These functions parameterize elf_core_dump in fs/binfmt_elf.c to write out
   * extra segments containing the gate DSO contents.  Dumping its
   * contents makes post-mortem fully interpretable later without matching up
   * the same kernel and hardware config to see what PC values meant.
   * Dumping its extra ELF program headers includes all the other information
   * a debugger needs to easily find how the gate DSO was being used.
   */
  extern Elf_Half elf_core_extra_phdrs(void);
  extern int
  elf_core_write_extra_phdrs(struct file *file, loff_t offset, size_t *size,
  			   unsigned long limit);
  extern int
  elf_core_write_extra_data(struct file *file, size_t *size, unsigned long limit);
  extern size_t elf_core_extra_data_size(void);
  
  #endif /* _LINUX_ELFCORE_H */
  