/*      $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 */