2 * Copyright (c) 1990 The Regents of the University of California.
5 * This code is derived from software contributed to Berkeley by
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * from: @(#)frame.h 5.2 (Berkeley) 1/18/91
37 * $FreeBSD: src/sys/i386/include/frame.h,v 1.20 1999/09/29 15:06:22 marcel Exp $
38 * $DragonFly: src/sys/cpu/i386/include/frame.h,v 1.9 2007/01/23 08:43:02 dillon Exp $
45 * System stack frames.
49 * Exception/Trap Stack Frame. This frame must match or be embedded within
50 * all other frame types, including signal context frames.
67 /* below portion defined in 386 hardware */
72 /* below only when crossing rings (e.g. user to kernel) */
78 * This frame is postfixed with additinoal information for traps from
79 * virtual-8086 mode but must otherwise match the trapframe.
81 struct trapframe_vm86 {
96 /* below portion defined in 386 hardware */
101 /* below only when crossing rings (e.g. user to kernel) */
104 /* below only when switching out of VM86 mode */
112 * Interrupt stack frame. This frame is prefixed with additional
113 * information but must otherwise match the trapframe.
125 int if_isp; /* unused/trap frame compat - isp */
130 int if_xflags; /* trap frame compat - xflags (vkernel) */
131 int if_trapno; /* unused/trap frame compat - trapno */
132 int if_err; /* unused/trap frame compat - err */
133 /* below portion defined in 386 hardware */
137 /* below only when crossing rings (e.g. user to kernel) */
142 int kdb_trap (int, int, struct trapframe *);
143 extern int (*pmath_emulate) (struct trapframe *);
145 #define INTR_TO_TRAPFRAME(frame) ((struct trapframe *)&(frame)->if_gs)
147 #endif /* _CPU_FRAME_H_ */