115 lines
3.2 KiB
C
115 lines
3.2 KiB
C
/* $NetBSD: db_machdep.h,v 1.8 1997/11/26 21:26:44 matthias Exp $ */
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/*
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* Mach Operating System
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* Copyright (c) 1992 Carnegie Mellon University
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* Copyright (c) 1992 Helsinki University of Technology
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* All Rights Reserved.
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*
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* Permission to use, copy, modify and distribute this software and its
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* 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 AND HELSINKI UNIVERSITY OF TECHNOLOGY ALLOW FREE USE
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* OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON AND
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* HELSINKI UNIVERSITY OF TECHNOLOGY DISCLAIM 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 Mellon
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* the rights to redistribute these changes.
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*/
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/*
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* HISTORY
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* 11-May-92 Tero Kivinen (kivinen) at Helsinki University of Technology
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* Created.
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*
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*/
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/*
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* File: ns532/db_machdep.h
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* Author: Tero Kivinen, Helsinki University of Technology 1992.
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*
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* Machine-dependent defines for kernel debugger.
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*
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* modified by Phil Nelson for inclusion in 532bsd.
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*
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*/
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#ifndef _MACHINE_DB_MACHDEP_H_
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#define _MACHINE_DB_MACHDEP_H_
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#include <vm/vm_prot.h>
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#include <vm/vm_param.h>
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#include <vm/vm_inherit.h>
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#include <machine/reg.h> /* For struct reg */
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#include <machine/psl.h>
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#include <machine/trap.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.r_pc)
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#define BKPT_INST 0xf2 /* breakpoint instruction */
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#define BKPT_SIZE (1) /* size of breakpoint inst */
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#define BKPT_SET(inst) (BKPT_INST)
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#define db_clear_single_step(regs) ((regs)->tf_regs.r_psr &= ~PSL_T)
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#define db_set_single_step(regs) ((regs)->tf_regs.r_psr |= PSL_T)
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#define IS_BREAKPOINT_TRAP(type, code) ((type) == T_BPT)
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#define IS_WATCHPOINT_TRAP(type, code) ((type) == T_WATCHPOINT)
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#define I_BSR 0x02
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#define I_JSR 0x7f /* and low 3 bits of next byte are 0x6 */
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#define I_RET 0x12
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#define I_RETT 0x42
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#define I_RETI 0x52
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#define inst_trap_return(ins) (((ins)&0xff) == I_RETT || \
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((ins)&0xff) == I_RETI)
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#define inst_return(ins) (((ins)&0xff) == I_RET)
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#define inst_call(ins) (((ins)&0xff) == I_BSR || \
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(((ins)&0xff) == I_JSR && \
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((ins)&0x0700) == 0x0600))
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#define inst_load(ins) 0
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#define inst_store(ins) 0
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extern int db_active_ipl;
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/*
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* This is needed for kgdb.
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*/
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typedef long kgdb_reg_t;
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#define KGDB_NUMREGS 25
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#define KGDB_BUFLEN 512
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#ifdef _KERNEL
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int kdb_trap __P((int, int, db_regs_t *));
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struct insn;
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int db_dasm_ns32k __P((struct insn *insn, db_addr_t loc));
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#endif /* _KERNEL */
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/*
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* We use a.out symbols in DDB.
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*/
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#define DB_AOUT_SYMBOLS
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#endif
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