NetBSD/sys/arch/i386/include/asm.h

93 lines
3.1 KiB
C

/*-
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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.
*
* from: @(#)asm.h 5.5 (Berkeley) 5/7/91
* $Id: asm.h,v 1.5 1994/03/12 01:23:21 jtc Exp $
*/
#ifndef _I386_ASM_H_
#define _I386_ASM_H_
#ifdef PIC
#define PIC_PROLOGUE \
pushl %ebx; \
call 1f; \
1: \
popl %ebx; \
addl $_GLOBAL_OFFSET_TABLE_+[.-1b], %ebx
#define PIC_EPILOGUE \
popl %ebx
#define PIC_PLT(x) x@PLT
#define PIC_GOT(x) x@GOT(%ebx)
#define PIC_GOTOFF(x) x@GOTOFF(%ebx)
#else
#define PIC_PROLOGUE
#define PIC_EPILOGUE
#define PIC_PLT(x) x
#define PIC_GOT(x) x
#define PIC_GOTOFF(x) x
#endif
#ifdef PROF
/*
* XXX assumes that arguments are not passed in %eax
*/
# define _BEGIN_ENTRY .data; 1:; .long 0; .text; .align 2
# define _END_ENTRY movl $1b,%eax; call PIC_PLT(mcount)
#else
# define _BEGIN_ENTRY .text; .align 2
# define _END_ENTRY
#endif
#ifdef __STDC__
# define _C_FUNC(x) _ ## x
#else
# define _C_FUNC(x) _/**/x
#endif
#define _ASM_FUNC(x) x
#define _ENTRY(x) .globl x; .type x,@function; x:
#define ENTRY(y) _BEGIN_ENTRY; _ENTRY(_C_FUNC(y)); _END_ENTRY
#define TWOENTRY(y,z) _BEGIN_ENTRY; _ENTRY(_C_FUNC(y)); _ENTRY(_C_FUNC(z)); \
_END_ENTRY
#define ASENTRY(y) _BEGIN_ENTRY; _ENTRY(_ASM_FUNC(y)); _END_ENTRY
#define ASMSTR .asciz
#define RCSID(x) .text; .asciz x
#endif /* !_I386_ASM_H_ */