/*      $NetBSD: freebsd_machdep.h,v 1.1 2017/08/08 08:04:06 maxv Exp $ */

/*
 * Copyright (c) 1986, 1989, 1991, 1993
 *      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.
 *
 *      from: @(#)signal.h      8.1 (Berkeley) 6/11/93
 *      from: Id: signal.h,v 1.4 1994/08/21 04:55:30 paul Exp 
 *
 *      from: @(#)frame.h       5.2 (Berkeley) 1/18/91
 *      from: Id: frame.h,v 1.10 1995/03/16 18:11:42 bde Exp 
 */
#ifndef _FREEBSD_MACHDEP_H
#define _FREEBSD_MACHDEP_H

#include <compat/sys/sigtypes.h>

/*
 * signal support
 */

struct freebsd_osigcontext {
        int     sc_onstack;     /* sigstack state to restore */
        sigset13_t sc_mask;     /* signal mask to restore */
        int     sc_esp;         /* machine state */
        int     sc_ebp;
        int     sc_isp;
        int     sc_eip;
        int     sc_eflags;
        int     sc_es;
        int     sc_ds;
        int     sc_cs;
        int     sc_ss;
        int     sc_edi;
        int     sc_esi;
        int     sc_ebx;
        int     sc_edx;
        int     sc_ecx;
        int     sc_eax;
};

/*
 * The sequence of the fields/registers in struct sigcontext should match
 * those in mcontext_t.
 */
struct freebsd_sigcontext {
        sigset_t sc_mask;               /* signal mask to restore */
        int     sc_onstack;             /* sigstack state to restore */
        int     sc_gs;                  /* machine state (struct trapframe): */
        int     sc_fs;
        int     sc_es;
        int     sc_ds;
        int     sc_edi;
        int     sc_esi;
        int     sc_ebp;
        int     sc_isp;
        int     sc_ebx;
        int     sc_edx;
        int     sc_ecx;
        int     sc_eax;
        int     sc_trapno;
        int     sc_err;
        int     sc_eip;
        int     sc_cs;
        int     sc_efl;
        int     sc_esp;
        int     sc_ss;
        /*
         * XXX FPU state is 27 * 4 bytes h/w, 1 * 4 bytes s/w (probably not
         * needed here), or that + 16 * 4 bytes for emulators (probably all
         * needed here).  The "spare" bytes are mostly not spare.
         */
        int     sc_fpregs[28];          /* machine state (FPU): */
        int     sc_spare[17];
};

struct freebsd_sigframe {
        int     sf_signum;
        int     sf_code;
        struct  freebsd_sigcontext *sf_scp;
        char    *sf_addr;
        sig_t   sf_handler;
        struct  freebsd_sigcontext sf_sc;
};

void freebsd_syscall_intern(struct proc *);

#endif /* _FREEBSD_MACHDEP_H */