/*	$NetBSD: frame.h,v 1.23 2025/06/27 21:36:24 andvar Exp $	*/

/*-
 * Copyright (c) 1998 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Charles M. Hannum.
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
 */

/*-
 * 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.
 *
 *	@(#)frame.h	5.2 (Berkeley) 1/18/91
 */

/*
 * Adapted for NetBSD/amd64 by fvdl@wasabisystems.com
 */

#ifndef _AMD64_FRAME_H_
#define _AMD64_FRAME_H_

#ifdef __x86_64__

#include <sys/signal.h>
#include <sys/ucontext.h>
#include <machine/frame_regs.h>

/*
 * System stack frames.
 */

/*
 * Exception/Trap Stack Frame
 */
#define tf(reg, REG, idx) uint64_t tf_##reg;
struct trapframe {
    _FRAME_REG(tf, tf)
};
#undef tf

/*
 * Interrupt stack frame
 */
struct intrframe {
	uint64_t	if_ppl;		/* Old interrupt mask level */
	struct trapframe if_tf;
};

#ifdef XEN
/*
 * Need arch independent way to access IP and CS from intrframe
 */
#define	_INTRFRAME_CS	if_tf.tf_cs
#define	_INTRFRAME_IP	if_tf.tf_rip
#endif

/*
 * Stack frame inside cpu_switchto()
 */
struct switchframe {
	uint64_t	sf_r15;
	uint64_t	sf_r14;
	uint64_t	sf_r13;
	uint64_t	sf_r12;
	uint64_t	sf_rbx;
	uint64_t	sf_rip;
};

/*
 * Signal frame
 */
struct sigframe_siginfo {
	uint64_t	sf_ra;		/* return address for handler */
	siginfo_t	sf_si;		/* actual saved siginfo */
	ucontext_t	sf_uc;		/* actual saved ucontext */
};

#ifdef _KERNEL
struct lwp;
void buildcontext(struct lwp *, void *, void *);
#define lwp_trapframe(l)	((l)->l_md.md_regs)
#endif

#else	/*	__x86_64__	*/

#include <i386/frame.h>

#endif	/*	__x86_64__	*/

#endif  /* _AMD64_FRAME_H_ */