1 /* $NetBSD: frame.h,v 1.5 2002/10/19 00:10:54 bjh21 Exp $ */
4 * Copyright (c) 1994-1997 Mark Brinicombe.
5 * Copyright (c) 1994 Brini.
8 * This code is derived from software written for Brini by Mark Brinicombe
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
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 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by Brini.
21 * 4. The name of the company nor the name of the author may be used to
22 * endorse or promote products derived from this software without specific
23 * prior written permission.
25 * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
26 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
27 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
28 * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
29 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
30 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
31 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * RiscBSD kernel project
41 * Stack frames structures
49 #ifndef _MACHINE_FRAME_H_
50 #define _MACHINE_FRAME_H_
54 #include <sys/signal.h>
55 #include <sys/ucontext.h>
59 * Trap frame. Pushed onto the kernel stack on a trap (synchronous exception).
62 typedef struct trapframe {
63 register_t tf_spsr; /* Zero on arm26 */
79 register_t tf_svc_sp; /* Not used on arm26 */
80 register_t tf_svc_lr; /* Not used on arm26 */
85 /* Register numbers */
86 #define tf_r13 tf_usr_sp
87 #define tf_r14 tf_usr_lr
90 * * Scheduler activations upcall frame. Pushed onto user stack before
91 * * calling an SA upcall.
95 #if 0 /* in registers on entry to upcall */
97 struct sa_t ** sa_sas;
105 * * Signal frame. Pushed onto user stack before calling sigcode.
108 /* the pointers are use in the trampoline code to locate the ucontext */
110 siginfo_t sf_si; /* actual saved siginfo */
111 ucontext_t sf_uc; /* actual saved ucontext */
115 * System stack frames.
119 typedef struct irqframe {
120 unsigned int if_spsr;
134 unsigned int if_usr_sp;
135 unsigned int if_usr_lr;
136 unsigned int if_svc_sp;
137 unsigned int if_svc_lr;
144 * It is important this is a multiple of 8 bytes so the stack is correctly
145 * aligned when we create new threads.
149 u_int pad; /* Used to pad the struct to a multiple of 8-bytes */
158 * Stack frame. Used during stack traces (db_trace.c)
167 #endif /* !_LOCORE */
169 #endif /* _MACHINE_FRAME_H_ */