text: /*
   * Copyright (c) 1992, 1993
   *	The Regents of the University of California.  All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. Neither the name of the University nor the names of its contributors
   *    may be used to endorse or promote products derived from this software
   *    without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   *
   *	@(#)profile.h	8.1 (Berkeley) 6/11/93
   * $FreeBSD: src/sys/amd64/include/profile.h,v 1.33 2004/01/06 20:36:21 nectar Exp $
   */
  
  #ifndef _CPU_PROFILE_H_
  #define	_CPU_PROFILE_H_
  
  #include <sys/cdefs.h>
  
  #define	FUNCTION_ALIGNMENT	4
  
  #define	_MCOUNT_DECL \
  static void _mcount(uintfptr_t frompc, uintfptr_t selfpc) __used; \
  static void _mcount
  
  #ifdef	__GNUC__
  #define	MCOUNT __asm("			\n\
  	.text				\n\
  	.p2align 4,0x90			\n\
  	.globl	.mcount			\n\
  	.type	.mcount,@function	\n\
  .mcount:				\n\
  	pushq	%rdi			\n\
  	pushq	%rsi			\n\
  	pushq	%rdx			\n\
  	pushq	%rcx			\n\
  	pushq	%r8			\n\
  	pushq	%r9			\n\
  	pushq	%rax			\n\
  	movq	8(%rbp),%rdi		\n\
  	movq	7*8(%rsp),%rsi		\n\
  	call	_mcount			\n\
  	popq	%rax			\n\
  	popq	%r9			\n\
  	popq	%r8			\n\
  	popq	%rcx			\n\
  	popq	%rdx			\n\
  	popq	%rsi			\n\
  	popq	%rdi			\n\
  	ret				\n\
  	.size	.mcount, . - .mcount");
  #else	/* __GNUC__ */
  #define	MCOUNT		\
  void			\
  mcount()		\
  {			\
  }
  #endif	/* __GNUC__ */
  
  typedef	unsigned long	uintfptr_t;
  
  /*
   * An unsigned integral type that can hold non-negative difference between
   * function pointers.
   */
  typedef	unsigned long	fptrdiff_t;
  
  __BEGIN_DECLS
  #ifdef __GNUC__
  void	mcount(void) __asm(".mcount");
  #endif
  __END_DECLS
  
  #endif /* !_CPU_PROFILE_H_ */
  