text: /*	$NetBSD: asm.h,v 1.14.14.1 2012/11/22 17:39:28 riz Exp $	*/
  
  /*-
   * Copyright (c) 1990 The Regents of the University of California.
   * All rights reserved.
   *
   * This code is derived from software contributed to Berkeley by
   * William Jolitz.
   *
   * 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.
   *
   *	@(#)asm.h	5.5 (Berkeley) 5/7/91
   */
  
  #ifndef _AMD64_ASM_H_
  #define _AMD64_ASM_H_
  
  #ifdef __x86_64__
  
  #ifdef PIC
  #define PIC_PLT(x)	x@PLT
  #define PIC_GOT(x)	x@GOTPCREL(%rip)
  #else
  #define PIC_PLT(x)	x
  #define PIC_GOT(x)	x
  #endif
  
  # define _C_LABEL(x)	x
  #define	_ASM_LABEL(x)	x
  
  #define CVAROFF(x,y)		(_C_LABEL(x)+y)(%rip)
  
  #ifdef __STDC__
  # define __CONCAT(x,y)	x ## y
  # define __STRING(x)	#x
  #else
  # define __CONCAT(x,y)	x/**/y
  # define __STRING(x)	"x"
  #endif
  
  /* let kernels and others override entrypoint alignment */
  #ifndef _ALIGN_TEXT
  # ifdef _STANDALONE
  #  define _ALIGN_TEXT .align 4
  # else
  #  define _ALIGN_TEXT .align 16
  # endif
  #endif
  
  #define _ENTRY(x) \
  	.text; _ALIGN_TEXT; .globl x; .type x,@function; x:
  #define _LABEL(x) \
  	.globl x; x:
  
  #ifdef _KERNEL
  /* XXX Can't use __CONCAT() here, as it would be evaluated incorrectly. */
  #ifdef __STDC__
  #define	IDTVEC(name) \
  	ALIGN_TEXT; .globl X ## name; .type X ## name,@function; X ## name:
  #else 
  #define	IDTVEC(name) \
  	ALIGN_TEXT; .globl X/**/name; .type X/**/name,@function; X/**/name:
  #endif /* __STDC__ */ 
  #endif /* _KERNEL */
  
  #ifdef __STDC__
  #define CPUVAR(off)	%gs:CPU_INFO_ ## off
  #else
  #define CPUVAR(off)     %gs:CPU_INFO_/**/off
  #endif
  
  
  #ifdef GPROF
  # define _PROF_PROLOGUE	\
  	pushq %rbp; leaq (%rsp),%rbp; call PIC_PLT(__mcount); popq %rbp
  #else
  # define _PROF_PROLOGUE
  #endif
  
  #define	ENTRY(y)	_ENTRY(_C_LABEL(y)); _PROF_PROLOGUE
  #define	NENTRY(y)	_ENTRY(_C_LABEL(y))
  #define	ALTENTRY(x)	NENTRY(x)
  #define	ASENTRY(y)	_ENTRY(_ASM_LABEL(y)); _PROF_PROLOGUE
  #define	LABEL(y)	_LABEL(_C_LABEL(y))
  
  #define	ASMSTR		.asciz
  
  #define RCSID(x)	.pushsection ".ident"; .asciz x; .popsection
  
  #define	WEAK_ALIAS(alias,sym)						\
  	.weak alias;							\
  	alias = sym
  
  /*
   * STRONG_ALIAS: create a strong alias.
   */
  #define STRONG_ALIAS(alias,sym)						\
  	.globl alias;							\
  	alias = sym
  
  #ifdef __STDC__
  #define	WARN_REFERENCES(sym,msg)					\
  	.pushsection .gnu.warning. ## sym;				\
  	.ascii msg;							\
  	.popsection
  #else
  #define	WARN_REFERENCES(sym,msg)					\
  	.pushsection .gnu.warning./**/sym;				\
  	.ascii msg;							\
  	.popsection
  #endif /* __STDC__ */
  
  #else	/*	__x86_64__	*/
  
  #include <i386/asm.h>
  
  #endif	/*	__x86_64__	*/
  
  #endif /* !_AMD64_ASM_H_ */
  