1/*-
2 * Copyright (c) 2003 Peter Wemm.
3 * Copyright (c) 1990 The Regents of the University of California.
4 * All rights reserved.
5 *
6 * This code is derived from software contributed to Berkeley by
7 * William Jolitz.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 * 4. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 *	from: @(#)frame.h	5.2 (Berkeley) 1/18/91
34 * $FreeBSD$
35 */
36
37#ifndef _MACHINE_FRAME_H_
38#define _MACHINE_FRAME_H_ 1
39
40/*
41 * System stack frames.
42 */
43
44#ifdef __i386__
45/*
46 * Exception/Trap Stack Frame
47 */
48
49struct trapframe {
50	int	tf_fs;
51	int	tf_es;
52	int	tf_ds;
53	int	tf_edi;
54	int	tf_esi;
55	int	tf_ebp;
56	int	tf_isp;
57	int	tf_ebx;
58	int	tf_edx;
59	int	tf_ecx;
60	int	tf_eax;
61	int	tf_trapno;
62	/* below portion defined in 386 hardware */
63	int	tf_err;
64	int	tf_eip;
65	int	tf_cs;
66	int	tf_eflags;
67	/* below only when crossing rings (e.g. user to kernel) */
68	int	tf_esp;
69	int	tf_ss;
70};
71
72/* Superset of trap frame, for traps from virtual-8086 mode */
73
74struct trapframe_vm86 {
75	int	tf_fs;
76	int	tf_es;
77	int	tf_ds;
78	int	tf_edi;
79	int	tf_esi;
80	int	tf_ebp;
81	int	tf_isp;
82	int	tf_ebx;
83	int	tf_edx;
84	int	tf_ecx;
85	int	tf_eax;
86	int	tf_trapno;
87	/* below portion defined in 386 hardware */
88	int	tf_err;
89	int	tf_eip;
90	int	tf_cs;
91	int	tf_eflags;
92	/* below only when crossing rings (e.g. user to kernel) */
93	int	tf_esp;
94	int	tf_ss;
95	/* below only when switching out of VM86 mode */
96	int	tf_vm86_es;
97	int	tf_vm86_ds;
98	int	tf_vm86_fs;
99	int	tf_vm86_gs;
100};
101#endif /* __i386__ */
102
103#ifdef __amd64__
104/*
105 * Exception/Trap Stack Frame
106 *
107 * The ordering of this is specifically so that we can take first 6
108 * the syscall arguments directly from the beginning of the frame.
109 */
110
111struct trapframe {
112	register_t	tf_rdi;
113	register_t	tf_rsi;
114	register_t	tf_rdx;
115	register_t	tf_rcx;
116	register_t	tf_r8;
117	register_t	tf_r9;
118	register_t	tf_rax;
119	register_t	tf_rbx;
120	register_t	tf_rbp;
121	register_t	tf_r10;
122	register_t	tf_r11;
123	register_t	tf_r12;
124	register_t	tf_r13;
125	register_t	tf_r14;
126	register_t	tf_r15;
127	uint32_t	tf_trapno;
128	uint16_t	tf_fs;
129	uint16_t	tf_gs;
130	register_t	tf_addr;
131	uint32_t	tf_flags;
132	uint16_t	tf_es;
133	uint16_t	tf_ds;
134	/* below portion defined in hardware */
135	register_t	tf_err;
136	register_t	tf_rip;
137	register_t	tf_cs;
138	register_t	tf_rflags;
139	register_t	tf_rsp;
140	register_t	tf_ss;
141};
142
143#define	TF_HASSEGS	0x1
144#define	TF_HASBASES	0x2
145#define	TF_HASFPXSTATE	0x4
146#endif /* __amd64__ */
147
148#endif /* _MACHINE_FRAME_H_ */
149