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/* $NetBSD: frame.h,v 1.5 2002/10/19 00:10:54 bjh21 Exp $ */
/*-
* Copyright (c) 1994-1997 Mark Brinicombe.
* Copyright (c) 1994 Brini.
* All rights reserved.
*
* This code is derived from software written for Brini by Mark Brinicombe
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Brini.
* 4. The name of the company nor the name of the author may be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* RiscBSD kernel project
*
* frame.h
*
* Stack frames structures
*
* Created : 30/09/94
*
* $FreeBSD$
*
*/
#ifndef _MACHINE_FRAME_H_
#define _MACHINE_FRAME_H_
#ifndef _LOCORE
#include <sys/signal.h>
#include <sys/ucontext.h>
/*
* Trap frame. Pushed onto the kernel stack on a trap (synchronous exception).
*/
struct trapframe {
register_t tf_spsr; /* Zero on arm26 */
register_t tf_r0;
register_t tf_r1;
register_t tf_r2;
register_t tf_r3;
register_t tf_r4;
register_t tf_r5;
register_t tf_r6;
register_t tf_r7;
register_t tf_r8;
register_t tf_r9;
register_t tf_r10;
register_t tf_r11;
register_t tf_r12;
register_t tf_usr_sp;
register_t tf_usr_lr;
register_t tf_svc_sp; /* Not used on arm26 */
register_t tf_svc_lr; /* Not used on arm26 */
register_t tf_pc;
register_t tf_pad;
};
/* Register numbers */
#define tf_r13 tf_usr_sp
#define tf_r14 tf_usr_lr
#define tf_r15 tf_pc
/*
* * Scheduler activations upcall frame. Pushed onto user stack before
* * calling an SA upcall.
* */
struct saframe {
#if 0 /* in registers on entry to upcall */
int sa_type;
struct sa_t ** sa_sas;
int sa_events;
int sa_interrupted;
#endif
void * sa_arg;
};
/*
* * Signal frame. Pushed onto user stack before calling sigcode.
* */
/* the pointers are use in the trampoline code to locate the ucontext */
struct sigframe {
siginfo_t sf_si; /* actual saved siginfo */
ucontext_t sf_uc; /* actual saved ucontext */
};
/*
* System stack frames.
*/
typedef struct irqframe {
unsigned int if_spsr;
unsigned int if_r0;
unsigned int if_r1;
unsigned int if_r2;
unsigned int if_r3;
unsigned int if_r4;
unsigned int if_r5;
unsigned int if_r6;
unsigned int if_r7;
unsigned int if_r8;
unsigned int if_r9;
unsigned int if_r10;
unsigned int if_r11;
unsigned int if_r12;
unsigned int if_usr_sp;
unsigned int if_usr_lr;
unsigned int if_svc_sp;
unsigned int if_svc_lr;
unsigned int if_pc;
} irqframe_t;
/*
* Switch frame.
*
* It is important this is a multiple of 8 bytes so the stack is correctly
* aligned when we create new threads.
*/
struct switchframe {
u_int pad; /* Used to pad the struct to a multiple of 8-bytes */
u_int sf_r4;
u_int sf_r5;
u_int sf_r6;
u_int sf_r7;
u_int sf_pc;
};
/*
* Stack frame. Used during stack traces (db_trace.c)
*/
struct frame {
u_int fr_fp;
u_int fr_sp;
u_int fr_lr;
u_int fr_pc;
};
#endif /* !_LOCORE */
#endif /* _MACHINE_FRAME_H_ */
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