8805bd8b56
shape as the old arm32 one, but there are a few #defines to keep arm26 code happy. Anything that depends on the precise shape of the trapframe, and especially on being able to treat it as an array of registers, has been updated.
129 lines
3.7 KiB
C
129 lines
3.7 KiB
C
/* $NetBSD: frame.h,v 1.4 2001/01/20 17:14:20 bjh21 Exp $ */
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/*
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* Copyright (c) 1999 Ben Harris.
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* Copyright (c) 1994-1997 Mark Brinicombe.
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* Copyright (c) 1994 Brini.
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* All rights reserved.
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*
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* This code is derived from software written for Brini by Mark Brinicombe
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Brini.
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* 4. The name of the company nor the name of the author may be used to
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* endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* frame.h - Stack frames structures
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*/
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#ifndef _ARM26_FRAME_H_
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#define _ARM26_FRAME_H_
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#include <arm/frame.h>
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#ifndef _LOCORE
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#include <machine/armreg.h>
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/*
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* System stack frames.
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*/
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/*
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* irqframes just contain registers that APCS specifies the callee
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* need not preserve.
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*/
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typedef struct irqframe {
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union {
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struct {
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register_t if_r0;
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register_t if_r1;
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register_t if_r2;
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register_t if_r3;
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register_t if_r12;
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register_t if_r14;
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} svc;
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struct {
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register_t if_r0;
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register_t if_r1;
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register_t if_r2;
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register_t if_r3;
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register_t if_r11;
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register_t if_r12;
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} usr;
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} if_mode;
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register_t if_r15; /* Must be fixed so we know which branch to use */
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} irqframe_t;
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#define clockframe irqframe
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/* All the CLKF_* macros take a struct clockframe * as an argument. */
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/* True if we took the interrupt in user mode */
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#define CLKF_USERMODE(frame) ((frame->if_r15 & R15_MODE) == R15_MODE_USR)
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/* True if we were at spl0 before the interrupt */
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#define CLKF_BASEPRI(frame) 0 /* FIXME */
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/* Extract the program counter from a clockframe */
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#define CLKF_PC(frame) (frame->if_r15 & R15_PC)
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/* True if we took the interrupt from inside another interrupt handler. */
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/* Non-trivial to check because we handle interrupts in SVC mode. */
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#define CLKF_INTR(frame) 0 /* FIXME */
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/*
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* Switch frame
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*/
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struct switchframe {
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register_t sf_r4; /* Callee-saved registers */
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register_t sf_r5;
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register_t sf_r6;
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register_t sf_r7;
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register_t sf_r8;
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register_t sf_r9;
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register_t sf_r10;
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register_t sf_r11; /* Frame pointer */
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register_t sf_r13; /* Stack pointer */
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register_t sf_r14; /* Return address */
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};
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/*
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* Floating-point frame. Stores the state of the FPU.
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*/
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struct fpframe {
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register_t ff_fpsr;
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register_t ff_regs[8*3];
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};
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#endif _LOCORE
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#endif /* _ARM26_FRAME_H_ */
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/* End of frame.h */
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