sys/arch/sh3/include/frame.h

   1 /*      $NetBSD: frame.h,v 1.18 2008/10/15 06:51:18 wrstuden Exp $      */
   2
   3 /*-
   4  * Copyright (c) 2002 The NetBSD Foundation, Inc. All rights reserved.
   5  * Copyright (c) 1990 The Regents of the University of California.
   6  * All rights reserved.
   7  *
   8  * This code is derived from software contributed to Berkeley by
   9  * William Jolitz.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  * 3. Neither the name of the University nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  *
  35  *      @(#)frame.h     5.2 (Berkeley) 1/18/91
  36  */
  37
  38 /*-
  39  * Copyright (c) 1995 Charles M. Hannum.  All rights reserved.
  40  *
  41  * This code is derived from software contributed to Berkeley by
  42  * William Jolitz.
  43  *
  44  * Redistribution and use in source and binary forms, with or without
  45  * modification, are permitted provided that the following conditions
  46  * are met:
  47  * 1. Redistributions of source code must retain the above copyright
  48  *    notice, this list of conditions and the following disclaimer.
  49  * 2. Redistributions in binary form must reproduce the above copyright
  50  *    notice, this list of conditions and the following disclaimer in the
  51  *    documentation and/or other materials provided with the distribution.
  52  * 3. All advertising materials mentioning features or use of this software
  53  *    must display the following acknowledgement:
  54  *      This product includes software developed by the University of
  55  *      California, Berkeley and its contributors.
  56  * 4. Neither the name of the University nor the names of its contributors
  57  *    may be used to endorse or promote products derived from this software
  58  *    without specific prior written permission.
  59  *
  60  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  61  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  62  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  63  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  64  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  65  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  66  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  67  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  68  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  69  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  70  * SUCH DAMAGE.
  71  *
  72  *      @(#)frame.h     5.2 (Berkeley) 1/18/91
  73  */
  74
  75 #ifndef _SH3_FRAME_H_
  76 #define _SH3_FRAME_H_
  77
  78 #include <sys/signal.h>
  79
  80 /*
  81  * Exception Stack Frame
  82  */
  83 struct trapframe {
  84         /* software member */
  85         int     tf_expevt;
  86         int     tf_ubc;
  87         /* hardware registers */
  88         int     tf_spc;
  89         int     tf_ssr;
  90         int     tf_gbr;
  91         int     tf_macl;
  92         int     tf_mach;
  93         int     tf_pr;
  94         int     tf_r13;
  95         int     tf_r12;
  96         int     tf_r11;
  97         int     tf_r10;
  98         int     tf_r9;
  99         int     tf_r8;
 100         int     tf_r7;
 101         int     tf_r6;
 102         int     tf_r5;
 103         int     tf_r4;
 104         int     tf_r3;
 105         int     tf_r2;
 106         int     tf_r1;
 107         int     tf_r0;
 108         int     tf_r15;
 109         int     tf_r14;
 110 };
 111
 112 /*
 113  * Stack frame inside cpu_switch()
 114  */
 115 struct switchframe {
 116         int     sf_gbr;
 117         int     sf_sr;
 118         int     sf_pr;
 119         int     sf_r8;
 120         int     sf_r9;
 121         int     sf_r10;
 122         int     sf_r11;
 123         int     sf_r12;
 124         int     sf_r13;
 125         int     sf_r14;
 126         int     sf_r15;
 127         int     sf_r6_bank;
 128         int     sf_r7_bank;
 129 };
 130
 131 /*
 132  * Signal frame.
 133  *
 134  * NB: The order of sf_uc and sf_si is different from what other ports
 135  * use (siginfo at the top of the stack), because we want to avoid
 136  * wasting two instructions in __sigtramp_siginfo_2 to skip to the
 137  * ucontext.  Not that this order really matters, but I think this
 138  * inconsistency deserves an explanation.
 139  */
 140 struct sigframe_siginfo {
 141 #if 0 /* in registers on entry to signal trampoline */
 142         int             sf_signum; /* r4 - "signum" argument for handler */
 143         siginfo_t       *sf_sip;   /* r5 - "sip" argument for handler */
 144         ucontext_t      *sf_ucp;   /* r6 - "ucp" argument for handler */
 145 #endif
 146         ucontext_t      sf_uc;  /* actual saved ucontext */
 147         siginfo_t       sf_si;  /* actual saved siginfo */
 148 };
 149
 150 #if defined(COMPAT_16) && defined(_KERNEL)
 151 /*
 152  * Old signal frame format.
 153  */
 154 struct sigframe_sigcontext {
 155 #if 0 /* in registers on entry to signal trampoline */
 156         int     sf_signum;      /* r4 - "signum" argument for handler */
 157         int     sf_code;        /* r5 - "code" argument for handler */
 158         struct sigcontext *sf_scp; /* r6 - "scp" argument for handler */
 159 #endif
 160         struct sigcontext sf_sc; /* actual saved context */
 161 };
 162 #endif
 163
 164 /*
 165  * Scheduler activations upcall frame
 166  */
 167 struct saframe {
 168 #if 0 /* in registers on entry to upcallcode */
 169         int             sa_type;        /* r4 */
 170         struct sa_t **  sa_sas;         /* r5 */
 171         int             sa_events;      /* r6 */
 172         int             sa_interrupted; /* r7 */
 173 #endif
 174         void *          sa_arg;
 175 };
 176
 177 #ifdef _KERNEL
 178 void *getframe(const struct lwp *, int, int *);
 179 #endif
 180
 181 #endif /* !_SH3_FRAME_H_ */