LCOM1920-T02G10

/*        $NetBSD: frame.h,v 1.35 2012/02/19 21:06:11 rmind 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

 */

#ifndef _I386_FRAME_H_

#define _I386_FRAME_H_

#include <sys/signal.h>

/*

 * System stack frames.

 */

/*

 * Exception/Trap Stack Frame

 */

struct trapframe {

        uint16_t        tf_gs;

        uint16_t        tf_gs_pad;

        uint16_t        tf_fs;

        uint16_t        tf_fs_pad;

        uint16_t        tf_es;

        uint16_t        tf_es_pad;

        uint16_t        tf_ds;

        uint16_t        tf_ds_pad;

        int        tf_edi;

        int        tf_esi;

        int        tf_ebp;

        int        tf_ebx;

        int        tf_edx;

        int        tf_ecx;

        int        tf_eax;

        int        tf_trapno;

        /* below portion defined in 386 hardware */

        int        tf_err;

        int        tf_eip;

        int        tf_cs;

        int        tf_eflags;

        /* below used when transitting rings (e.g. user to kernel) */

        int        tf_esp;

        int        tf_ss;

        /* below used when switching out of VM86 mode */

        int        tf_vm86_es;

        int        tf_vm86_ds;

        int        tf_vm86_fs;

        int        tf_vm86_gs;

};

/*

 * Interrupt stack frame

 */

struct intrframe {

        int        if_ppl;

        int        if_gs;

        int        if_fs;

        int        if_es;

        int        if_ds;

        int        if_edi;

        int        if_esi;

        int        if_ebp;

        int        if_ebx;

        int        if_edx;

        int        if_ecx;

        int        if_eax;

        uint32_t __if_trapno;        /* for compat with trap frame - trapno */

        uint32_t __if_err;        /* for compat with trap frame - err */

        /* below portion defined in 386 hardware */

        int        if_eip;

        int        if_cs;

        int        if_eflags;

        /* below only when transitting rings (e.g. user to kernel) */

        int        if_esp;

        int        if_ss;

};

/*

 * Stack frame inside cpu_switchto()

 */

struct switchframe {

        int        sf_edi;

        int        sf_esi;

        int        sf_ebx;

        int        sf_eip;

};

#if defined(_KERNEL) || defined(__minix)

/*

 * Old-style signal frame

 */

struct sigframe_sigcontext {

#if defined(__minix)

        /* ret addr + stackframe for handler */

        int        sf_ra_sigreturn;        /* first return to sigreturn */

#else

        int        sf_ra;                        /* return address for handler */

#endif /* defined(__minix) */

        int        sf_signum;                /* "signum" argument for handler */

        int        sf_code;                /* "code" argument for handler */

        struct        sigcontext *sf_scp;        /* "scp" argument for handler */

#if defined(__minix)

        /* ret addr + stackframe for sigreturn */

        uint32_t sf_fp;                        /* saved FP */

        int        sf_ra;                        /* actual return address for handler */

        struct        sigcontext *sf_scpcopy;        /* minix scp copy */

#endif /* defined(__minix) */

        struct        sigcontext sf_sc;        /* actual saved context */

};

#endif

/*

 * New-style signal frame

 */

struct sigframe_siginfo {

        int                sf_ra;                /* return address for handler */

        int                sf_signum;        /* "signum" argument for handler */

        siginfo_t        *sf_sip;        /* "sip" argument for handler */

        ucontext_t        *sf_ucp;        /* "ucp" argument for handler */

        siginfo_t        sf_si;                /* actual saved siginfo */

        ucontext_t        sf_uc;                /* actual saved ucontext */

};

#ifdef _KERNEL

void *getframe(struct lwp *, int, int *);

void buildcontext(struct lwp *, int, void *, void *);

void sendsig_sigcontext(const ksiginfo_t *, const sigset_t *);

#endif

#endif  /* _I386_FRAME_H_ */