#ifndef _ASM_X86_FTRACE_H
  #define _ASM_X86_FTRACE_H

  #ifdef __ASSEMBLY__
  
  	.macro MCOUNT_SAVE_FRAME
  	/* taken from glibc */
  	subq $0x38, %rsp
  	movq %rax, (%rsp)
  	movq %rcx, 8(%rsp)
  	movq %rdx, 16(%rsp)
  	movq %rsi, 24(%rsp)
  	movq %rdi, 32(%rsp)
  	movq %r8, 40(%rsp)
  	movq %r9, 48(%rsp)
  	.endm
  
  	.macro MCOUNT_RESTORE_FRAME
  	movq 48(%rsp), %r9
  	movq 40(%rsp), %r8
  	movq 32(%rsp), %rdi
  	movq 24(%rsp), %rsi
  	movq 16(%rsp), %rdx
  	movq 8(%rsp), %rcx
  	movq (%rsp), %rax
  	addq $0x38, %rsp
  	.endm
  
  #endif

  #ifdef CONFIG_FUNCTION_TRACER

  #define MCOUNT_ADDR		((long)(mcount))
  #define MCOUNT_INSN_SIZE	5 /* sizeof mcount call */
  
  #ifndef __ASSEMBLY__
  extern void mcount(void);

  
  static inline unsigned long ftrace_call_adjust(unsigned long addr)
  {
  	/*

  	 * addr is the address of the mcount call instruction.
  	 * recordmcount does the necessary offset calculation.

  	 */

  	return addr;

  }

  
  #ifdef CONFIG_DYNAMIC_FTRACE
  
  struct dyn_arch_ftrace {
  	/* No extra data needed for x86 */
  };
  
  #endif /*  CONFIG_DYNAMIC_FTRACE */

  #endif /* __ASSEMBLY__ */

  #endif /* CONFIG_FUNCTION_TRACER */

  #endif /* _ASM_X86_FTRACE_H */