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/* $NetBSD: db_machdep.h,v 1.2 1996/03/06 23:16:54 mark Exp $ */
/*
* Copyright (c) 1996 Scott K Stevens
*
* Mach Operating System
* Copyright (c) 1991,1990 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
#ifndef _ARM32_DB_MACHDEP_H_
#define _ARM32_DB_MACHDEP_H_
/*
* Machine-dependent defines for new kernel debugger.
*/
#include <vm/vm.h>
#include <machine/frame.h>
#include <machine/psl.h>
#include <machine/reg.h>
/* end of mangling */
typedef vm_offset_t db_addr_t; /* address - unsigned */
typedef int db_expr_t; /* expression - signed */
typedef struct {
trapframe_t ddb_tf;
} db_regs_t;
db_regs_t ddb_regs; /* register state */
#define DDB_REGS (&ddb_regs)
#define DDB_TF (&ddb_regs.ddb_tf)
#define PC_REGS(regs) ((db_addr_t)(regs)->ddb_tf.tf_pc)
#define BKPT_INST (0xe7ffffff) /* breakpoint instruction */
#define BKPT_SIZE (4) /* size of breakpoint inst */
#define BKPT_SET(inst) (BKPT_INST)
/*#define db_clear_single_step(regs) (0)
#define db_set_single_step(regs) (0)*/
#define T_BREAKPOINT (1)
#define IS_BREAKPOINT_TRAP(type, code) ((type) == T_BREAKPOINT)
#define IS_WATCHPOINT_TRAP(type, code) (0)
#define inst_trap_return(ins) ((ins)&0)
#define inst_return(ins) ((ins)&0)
#define inst_call(ins) (((ins) & 0x0f000000) == 0x0b000000)
#define inst_branch(ins) (((ins) & 0x0f000000) == 0x0a000000)
#define inst_load(ins) 0
#define inst_store(ins) 0
#define getreg_val (0)
#define next_instr_address(pc, bd) (pc + 4)
#define DB_MACHINE_COMMANDS
#define SOFTWARE_SSTEP
#endif /* _ARM32_DB_MACHDEP_H_ */
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