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frame.h revision 1.23 
      1 /*	$NetBSD: frame.h,v 1.23 2025/06/27 21:36:24 andvar 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 /*
     67  * Adapted for NetBSD/amd64 by fvdl (at) wasabisystems.com
     68  */
     69 
     70 #ifndef _AMD64_FRAME_H_
     71 #define _AMD64_FRAME_H_
     72 
     73 #ifdef __x86_64__
     74 
     75 #include <sys/signal.h>
     76 #include <sys/ucontext.h>
     77 #include <machine/frame_regs.h>
     78 
     79 /*
     80  * System stack frames.
     81  */
     82 
     83 /*
     84  * Exception/Trap Stack Frame
     85  */
     86 #define tf(reg, REG, idx) uint64_t tf_##reg;
     87 struct trapframe {
     88     _FRAME_REG(tf, tf)
     89 };
     90 #undef tf
     91 
     92 /*
     93  * Interrupt stack frame
     94  */
     95 struct intrframe {
     96 	uint64_t	if_ppl;		/* Old interrupt mask level */
     97 	struct trapframe if_tf;
     98 };
     99 
    100 #ifdef XEN
    101 /*
    102  * Need arch independent way to access IP and CS from intrframe
    103  */
    104 #define	_INTRFRAME_CS	if_tf.tf_cs
    105 #define	_INTRFRAME_IP	if_tf.tf_rip
    106 #endif
    107 
    108 /*
    109  * Stack frame inside cpu_switchto()
    110  */
    111 struct switchframe {
    112 	uint64_t	sf_r15;
    113 	uint64_t	sf_r14;
    114 	uint64_t	sf_r13;
    115 	uint64_t	sf_r12;
    116 	uint64_t	sf_rbx;
    117 	uint64_t	sf_rip;
    118 };
    119 
    120 /*
    121  * Signal frame
    122  */
    123 struct sigframe_siginfo {
    124 	uint64_t	sf_ra;		/* return address for handler */
    125 	siginfo_t	sf_si;		/* actual saved siginfo */
    126 	ucontext_t	sf_uc;		/* actual saved ucontext */
    127 };
    128 
    129 #ifdef _KERNEL
    130 struct lwp;
    131 void buildcontext(struct lwp *, void *, void *);
    132 #define lwp_trapframe(l)	((l)->l_md.md_regs)
    133 #endif
    134 
    135 #else	/*	__x86_64__	*/
    136 
    137 #include <i386/frame.h>
    138 
    139 #endif	/*	__x86_64__	*/
    140 
    141 #endif  /* _AMD64_FRAME_H_ */
    142