/*      $OpenBSD: signal.h,v 1.12 2016/05/10 18:39:44 deraadt Exp $     */

/* 
 * Copyright (c) 1994, The University of Utah and
 * the Computer Systems Laboratory at the University of Utah (CSL).
 * All rights reserved.
 *
 * Permission to use, copy, modify and distribute this software is hereby
 * granted provided that (1) source code retains these copyright, permission,
 * and disclaimer notices, and (2) redistributions including binaries
 * reproduce the notices in supporting documentation, and (3) all advertising
 * materials mentioning features or use of this software display the following
 * acknowledgement: ``This product includes software developed by the
 * Computer Systems Laboratory at the University of Utah.''
 *
 * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
 * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
 * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 *
 * CSL requests users of this software to return to csl-dist@cs.utah.edu any
 * improvements that they make and grant CSL redistribution rights.
 *
 *      Utah $Hdr: signal.h 1.3 94/12/16$
 */

#ifndef _MACHINE_SIGNAL_H_
#define _MACHINE_SIGNAL_H_

#include <sys/cdefs.h>

/*
 * Machine-dependent signal definitions
 */

typedef int sig_atomic_t;

#ifdef _KERNEL
#include <machine/trap.h>
#endif

#if __BSD_VISIBLE || __XPG_VISIBLE >= 420
/*
 * Information pushed on stack when a signal is delivered.
 * This is used by the kernel to restore state following
 * execution of the signal handler.  It is also made available
 * to the handler to allow it to restore state properly if
 * a non-standard exit is performed.
 */
struct  sigcontext {
        unsigned long   __sc_unused;
        long            sc_mask;        /* signal mask to restore XXX should be int */
        unsigned long   sc_ps;          /* psl to restore */
        unsigned long   sc_fp;          /* fp to restore */
        unsigned long   sc_pcoqh;       /* pc offset queue (head) to restore */
        unsigned long   sc_pcoqt;       /* pc offset queue (tail) to restore */
        unsigned long   sc_resv[2];
        unsigned long   sc_regs[32];
        unsigned long   sc_fpregs[64];
        long            sc_cookie;
};
#endif /* __BSD_VISIBLE || __XPG_VISIBLE >= 420 */
#endif  /* !_MACHINE_SIGNAL_H_ */