/*	$OpenBSD: signal.h,v 1.3 1997/02/18 15:54:27 rahnds Exp $	*/
/*	$NetBSD: signal.h,v 1.1 1996/09/30 16:34:34 ws Exp $	*/

/*
 * Copyright (C) 1995, 1996 Wolfgang Solfrank.
 * Copyright (C) 1995, 1996 TooLs GmbH.
 * All rights reserved.
 *
 * 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 TooLs GmbH.
 * 4. The name of TooLs GmbH may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``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 TOOLS GMBH 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.
 */
#ifndef	_MACHINE_SIGNAL_H_
#define	_MACHINE_SIGNAL_H_

typedef int sig_atomic_t;

#include <machine/types.h>

/*
 * We have to save all registers on every trap, because
 *	1. user could attach this process every time
 *	2. we must be able to restore all user registers in case of fork
 * Actually, we do not save the fp registers on trap, since
 * these are not used by the kernel. They are saved only when switching
 * between processes using the FPU.
 *
 */
struct trapframe {
	u_int32_t fixreg[32];
	u_int32_t lr;
	u_int32_t cr;
	u_int32_t xer;
	u_int32_t ctr;
	int srr0;
	int srr1;
	int dar;			/* dar & dsisr are only filled on a DSI trap */
	int dsisr;
	u_int32_t exc;
};

struct sigcontext {
	int sc_onstack;			/* saved onstack flag */
	int sc_mask;			/* saved signal mask */
	struct trapframe sc_frame;	/* saved registers */
};
#endif	/* _MACHINE_SIGNAL_H_ */