79 lines
2.3 KiB
C
79 lines
2.3 KiB
C
/* $NetBSD: db_machdep.h,v 1.4 1995/12/10 06:50:58 mycroft Exp $ */
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/*
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* Mach Operating System
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* Copyright (c) 1991,1990 Carnegie Mellon University
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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 ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
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* 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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#ifndef _SPARC_DB_MACHDEP_H_
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#define _SPARC_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 <vm/vm.h>
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#include <machine/frame.h>
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#include <machine/psl.h>
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#include <machine/trap.h>
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#include <machine/reg.h>
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/* end of mangling */
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typedef vm_offset_t db_addr_t; /* address - unsigned */
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typedef int db_expr_t; /* expression - signed */
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typedef struct {
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struct trapframe ddb_tf;
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struct frame ddb_fr;
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} 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 DDB_TF (&ddb_regs.ddb_tf)
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#define DDB_FR (&ddb_regs.ddb_fr)
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#define PC_REGS(regs) ((db_addr_t)(regs)->ddb_tf.tf_pc)
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#define BKPT_INST 0x91d02001 /* 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 db_clear_single_step(regs) (0)
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#define db_set_single_step(regs) (0)
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#define IS_BREAKPOINT_TRAP(type, code) ((type) == T_BREAKPOINT)
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#define IS_WATCHPOINT_TRAP(type, code) (0)
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#define inst_trap_return(ins) ((ins)&0)
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#define inst_return(ins) ((ins)&0)
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#define inst_call(ins) ((ins)&0)
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#define inst_load(ins) 0
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#define inst_store(ins) 0
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#define DB_MACHINE_COMMANDS
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#endif /* _SPARC_DB_MACHDEP_H_ */
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