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      1 /*	$NetBSD: frame.h,v 1.20 2012/02/19 21:06:26 rmind 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 #ifdef _KERNEL
    165 void *getframe(const struct lwp *, int, int *);
    166 #endif
    167 
    168 #endif /* !_SH3_FRAME_H_ */
    169