freebsd-dev/lib/libc/sparc64/SYS.h

/*-
 * 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.
 *
 *	@(#)SYS.h	5.5 (Berkeley) 5/7/91
 *	from: FreeBSD: src/lib/libc/i386/SYS.h,v 1.20 2001/01/29
 * $FreeBSD$
 */

#include <sys/syscall.h>

#include <machine/asm.h>
#include <machine/utrap.h>

#define	ERROR() \
	mov	%o7, %g1 ; \
	call	HIDENAME(cerror) ; \
	 mov	%g1, %o7

#define	_SYSENTRY(x) \
ENTRY(__CONCAT(__sys_,x)) ; \
	.weak	CNAME(x) ; \
	.type	CNAME(x),@function ; \
	.set	CNAME(x),CNAME(__CONCAT(__sys_,x)) ; \
	.weak	CNAME(__CONCAT(_,x)) ; \
	.type	CNAME(__CONCAT(_,x)), @function ; \
	.set	CNAME(__CONCAT(_,x)),CNAME(__CONCAT(__sys_,x))

#define	_SYSEND(x) \
	.size	CNAME(__CONCAT(__sys_,x)), . - CNAME(__CONCAT(__sys_,x)) ; \
	.size	CNAME(__CONCAT(_,x)), . - CNAME(__CONCAT(__sys_,x)) ; \
	.size	CNAME(__CONCAT(,x)), . - CNAME(__CONCAT(__sys_,x))

#define	_SYSCALL(x) \
	mov	__CONCAT(SYS_,x), %g1 ; \
	ta	%xcc, ST_SYSCALL ; \
	bcc,a,pt %xcc, 1f ; \
	 nop ; \
	ERROR() ; \
1:

#define	RSYSCALL(x) \
_SYSENTRY(x) ; \
	_SYSCALL(x) ; \
	retl ; \
	 nop ; \
	_SYSEND(x)

#define	PSEUDO(x) \
ENTRY(__CONCAT(__sys_,x)) ; \
	.weak	CNAME(__CONCAT(_,x)) ; \
	.type	CNAME(__CONCAT(_,x)),@function ; \
	.set	CNAME(__CONCAT(_,x)),CNAME(__CONCAT(__sys_,x)) ; \
	mov	__CONCAT(SYS_,x), %g1 ; \
	ta	%xcc, ST_SYSCALL ; \
	retl ; \
	 nop ; \
	.size	CNAME(__CONCAT(__sys_,x)), . - CNAME(__CONCAT(__sys_,x)) ; \
	.size	CNAME(__CONCAT(_,x)), . - CNAME(__CONCAT(__sys_,x))