sys/arch/i386/include/frame.h

   1 /*      $NetBSD: frame.h,v 1.32 2008/11/14 12:53:18 ad Exp $    */
   2
   3 /*-
   4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Charles M. Hannum.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 /*-
  33  * Copyright (c) 1990 The Regents of the University of California.
  34  * All rights reserved.
  35  *
  36  * This code is derived from software contributed to Berkeley by
  37  * William Jolitz.
  38  *
  39  * Redistribution and use in source and binary forms, with or without
  40  * modification, are permitted provided that the following conditions
  41  * are met:
  42  * 1. Redistributions of source code must retain the above copyright
  43  *    notice, this list of conditions and the following disclaimer.
  44  * 2. Redistributions in binary form must reproduce the above copyright
  45  *    notice, this list of conditions and the following disclaimer in the
  46  *    documentation and/or other materials provided with the distribution.
  47  * 3. Neither the name of the University nor the names of its contributors
  48  *    may be used to endorse or promote products derived from this software
  49  *    without specific prior written permission.
  50  *
  51  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  52  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  53  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  54  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  55  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  56  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  57  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  58  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  59  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  60  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  61  * SUCH DAMAGE.
  62  *
  63  *      @(#)frame.h     5.2 (Berkeley) 1/18/91
  64  */
  65
  66 #ifndef _I386_FRAME_H_
  67 #define _I386_FRAME_H_
  68
  69 #include <sys/signal.h>
  70 #include <sys/sa.h>
  71
  72 /*
  73  * System stack frames.
  74  */
  75
  76 /*
  77  * Exception/Trap Stack Frame
  78  */
  79 struct trapframe {
  80         int     tf_gs;
  81         int     tf_fs;
  82         int     tf_es;
  83         int     tf_ds;
  84         int     tf_edi;
  85         int     tf_esi;
  86         int     tf_ebp;
  87         int     tf_ebx;
  88         int     tf_edx;
  89         int     tf_ecx;
  90         int     tf_eax;
  91         int     tf_trapno;
  92         /* below portion defined in 386 hardware */
  93         int     tf_err;
  94         int     tf_eip;
  95         int     tf_cs;
  96         int     tf_eflags;
  97         /* below used when transitting rings (e.g. user to kernel) */
  98         int     tf_esp;
  99         int     tf_ss;
 100         /* below used when switching out of VM86 mode */
 101         int     tf_vm86_es;
 102         int     tf_vm86_ds;
 103         int     tf_vm86_fs;
 104         int     tf_vm86_gs;
 105 };
 106
 107 /*
 108  * Interrupt stack frame
 109  */
 110 struct intrframe {
 111         int     if_ppl;
 112         int     if_gs;
 113         int     if_fs;
 114         int     if_es;
 115         int     if_ds;
 116         int     if_edi;
 117         int     if_esi;
 118         int     if_ebp;
 119         int     if_ebx;
 120         int     if_edx;
 121         int     if_ecx;
 122         int     if_eax;
 123         uint32_t __if_trapno;   /* for compat with trap frame - trapno */
 124         uint32_t __if_err;      /* for compat with trap frame - err */
 125         /* below portion defined in 386 hardware */
 126         int     if_eip;
 127         int     if_cs;
 128         int     if_eflags;
 129         /* below only when transitting rings (e.g. user to kernel) */
 130         int     if_esp;
 131         int     if_ss;
 132 };
 133
 134 /*
 135  * Stack frame inside cpu_switchto()
 136  */
 137 struct switchframe {
 138         int     sf_edi;
 139         int     sf_esi;
 140         int     sf_ebx;
 141         int     sf_eip;
 142 };
 143
 144 #ifdef _KERNEL
 145 /*
 146  * Old-style signal frame
 147  */
 148 struct sigframe_sigcontext {
 149         int     sf_ra;                  /* return address for handler */
 150         int     sf_signum;              /* "signum" argument for handler */
 151         int     sf_code;                /* "code" argument for handler */
 152         struct  sigcontext *sf_scp;     /* "scp" argument for handler */
 153         struct  sigcontext sf_sc;       /* actual saved context */
 154 };
 155 #endif
 156
 157 /*
 158  * New-style signal frame
 159  */
 160 struct sigframe_siginfo {
 161         int             sf_ra;          /* return address for handler */
 162         int             sf_signum;      /* "signum" argument for handler */
 163         siginfo_t       *sf_sip;        /* "sip" argument for handler */
 164         ucontext_t      *sf_ucp;        /* "ucp" argument for handler */
 165         siginfo_t       sf_si;          /* actual saved siginfo */
 166         ucontext_t      sf_uc;          /* actual saved ucontext */
 167 };
 168
 169 /*
 170  * Scheduler activations upcall frame
 171  */
 172 struct saframe {
 173         int             sa_ra;
 174         int             sa_type;
 175         struct sa_t**   sa_sas;
 176         int             sa_events;
 177         int             sa_interrupted;
 178         void*           sa_arg;
 179 };
 180
 181 #ifdef _KERNEL
 182 void *getframe(struct lwp *, int, int *);
 183 void buildcontext(struct lwp *, int, void *, void *);
 184 void sendsig_sigcontext(const ksiginfo_t *, const sigset_t *);
 185 #endif
 186
 187 #endif  /* _I386_FRAME_H_ */