57 lines
1.8 KiB
C
57 lines
1.8 KiB
C
/* $NetBSD: db_machdep.h,v 1.2 1996/07/11 05:31:31 cgd Exp $ */
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/*
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* Copyright (c) 1995 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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#ifndef _ALPHA_DB_MACHDEP_H_
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#define _ALPHA_DB_MACHDEP_H_
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/*
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* Machine-dependent defines for new kernel debugger.
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*/
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#include <sys/param.h>
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#include <vm/vm.h>
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#include <machine/frame.h>
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typedef vm_offset_t db_addr_t; /* address - unsigned */
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typedef long db_expr_t; /* expression - signed */
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typedef struct trapframe db_regs_t;
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db_regs_t ddb_regs; /* register state */
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#define DDB_REGS (&ddb_regs)
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#define PC_REGS(regs) ((db_addr_t)(regs)->tf_regs[FRAME_PC])
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#define BKPT_INST 0x00000080 /* breakpoint instruction */
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#define BKPT_SIZE (4) /* size of breakpoint inst */
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#define BKPT_SET(inst) (BKPT_INST)
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#define FIXUP_PC_AFTER_BREAK ddb_regs.tf_regs[FRAME_PC] -= BKPT_SIZE;
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#endif /* _ALPHA_DB_MACHDEP_H_ */
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