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/*-
* 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.
* 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: @(#)DEFS.h 5.1 (Berkeley) 4/23/90
* from: FreeBSD: src/sys/i386/include/asm.h,v 1.7 2000/01/25
* $FreeBSD$
*/
#ifndef _MACHINE_ASM_H_
#define _MACHINE_ASM_H_
#define __ASM__
#include <sys/cdefs.h>
#ifdef PIC
#define PIC_PROLOGUE(r1, r2) \
sethi %hi(_GLOBAL_OFFSET_TABLE_-4), r1 ; \
rd %pc, r2 ; \
or r1, %lo(_GLOBAL_OFFSET_TABLE_+4), r1 ; \
add r2, r1, r2
#define SET(name, r1, r2) \
set name, r2 ; \
ldx [r1 + r2], r2
#else
#define PIC_PROLOGUE(r1, r2)
#define SET(name, r1, r2) \
set name, r2
#endif
/*
* CNAME and HIDENAME manage the relationship between symbol names in C
* and the equivalent assembly language names. CNAME is given a name as
* it would be used in a C program. It expands to the equivalent assembly
* language name. HIDENAME is given an assembly-language name, and expands
* to a possibly-modified form that will be invisible to C programs.
*/
#define CNAME(csym) csym
#define HIDENAME(asmsym) __CONCAT(.,asmsym)
#define CCFSZ 192
#define SPOFF 2047
#define _ALIGN_TEXT .align 32
#define _START_ENTRY \
.text ; \
_ALIGN_TEXT
/*
* Define function entry and alternate entry points.
*
* The compiler produces #function for the .type pseudo-op, but the '#'
* character has special meaning in cpp macros, so we use @function like
* other architectures. The assembler seems to accept both.
* The assembler also accepts a .proc pseudo-op, which is used by the
* peep hole optimizer, whose argument is the type code of the return
* value. Since this is difficult to predict and its expected that
* assembler code is already optimized, we leave it out.
*/
#define _ALTENTRY(x) \
.globl CNAME(x) ; \
.type CNAME(x),@function ; \
CNAME(x):
#define _ENTRY(x) \
_START_ENTRY ; \
.globl CNAME(x) ; \
.type CNAME(x),@function ; \
CNAME(x):
#define ALTENTRY(x) _ALTENTRY(x)
#define ENTRY(x) _ENTRY(x)
#define END(x) .size x, . - x
/*
* Kernel RCS ID tag and copyright macros
*/
#undef __FBSDID
#if !defined(lint) && !defined(STRIP_FBSDID)
#define __FBSDID(s) .ident s
#else
#define __FBSDID(s) /* nothing */
#endif /* not lint and not STRIP_FBSDID */
#endif /* !_MACHINE_ASM_H_ */
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