/* $NetBSD: frame.h,v 1.40 2019/02/14 08:18:25 cherry 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;
};
/*
* 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;
};
#ifdef XEN
/*
* need arch independant way to access ip and cs from intrframe
*/
#define _INTRFRAME_CS if_cs
#define _INTRFRAME_IP if_eip
#endif
/*
* Stack frame inside cpu_switchto()
*/
struct switchframe {
int sf_edi;
int sf_esi;
int sf_ebx;
int sf_eip;
};
#ifdef _KERNEL
/*
* Old-style signal frame
*/
struct sigframe_sigcontext {
int sf_ra; /* return address for handler */
int sf_signum; /* "signum" argument for handler */
int sf_code; /* "code" argument for handler */
struct sigcontext *sf_scp; /* "scp" argument for handler */
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 *);
#define lwp_trapframe(l) ((l)->l_md.md_regs)
#endif
#endif /* _I386_FRAME_H_ */