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/* $NetBSD: db_machdep.h,v 1.3 1994/10/26 08:24:24 cgd Exp $ */
/*
* Mach Operating System
* Copyright (c) 1992 Carnegie Mellon University
* Copyright (c) 1992 Helsinki University of Technology
* 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 AND HELSINKI UNIVERSITY OF TECHNOLOGY ALLOW FREE USE
* OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON AND
* HELSINKI UNIVERSITY OF TECHNOLOGY DISCLAIM 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.
*/
/*
* HISTORY
* 11-May-92 Tero Kivinen (kivinen) at Helsinki University of Technology
* Created.
*
*/
/*
* File: ns532/db_machdep.h
* Author: Tero Kivinen, Helsinki University of Technology 1992.
*
* Machine-dependent defines for kernel debugger.
*
* modified by Phil Nelson for inclusion in 532bsd.
*
*/
#ifndef _MACHINE_DB_MACHDEP_H_
#define _MACHINE_DB_MACHDEP_H_
/* #include <mach/ns532/vm_types.h> */
/* #include <mach/ns532/vm_param.h> */
#include <vm/vm_prot.h>
#include <vm/vm_param.h>
#include <vm/vm_inherit.h>
#include <vm/lock.h>
/* #include <ns532/thread.h> /* for thread_status */
#include <machine/frame.h> /* For struct trapframe */
#include <machine/psl.h>
#include <machine/trap.h>
typedef vm_offset_t db_addr_t; /* address - unsigned */
typedef int db_expr_t; /* expression - signed */
typedef struct ns532_saved_state db_regs_t;
db_regs_t ddb_regs; /* register state */
#define DDB_REGS (&ddb_regs)
#define PC_REGS(regs) ((db_addr_t)(regs)->pc)
#define BKPT_INST 0xf2 /* breakpoint instruction */
#define BKPT_SIZE (1) /* size of breakpoint inst */
#define BKPT_SET(inst) (BKPT_INST)
/* #define FIXUP_PC_AFTER_BREAK ddb_regs.pc -= 1; */
#define db_clear_single_step(regs) ((regs)->psr &= ~PSR_T)
#define db_set_single_step(regs) ((regs)->psr |= PSR_T)
#define IS_BREAKPOINT_TRAP(type, code) ((type) == T_BPT)
#define IS_WATCHPOINT_TRAP(type, code) ((type) == T_WATCHPOINT)
#define I_BSR 0x02
#define I_JSR 0x7f /* and low 3 bits of next byte are 0x6 */
#define I_RET 0x12
#define I_RETT 0x42
#define I_RETI 0x52
#define inst_trap_return(ins) (((ins)&0xff) == I_RETT || \
((ins)&0xff) == I_RETI)
#define inst_return(ins) (((ins)&0xff) == I_RET)
#define inst_call(ins) (((ins)&0xff) == I_BSR || \
(((ins)&0xff) == I_JSR && \
((ins)&0x0700) == 0x0600))
#define inst_load(ins) 0
#define inst_store(ins) 0
extern int db_active_ipl;
/* access capability and access macros */
#define DB_ACCESS_LEVEL 2 /* access any space */
#define DB_CHECK_ACCESS(addr,size,task) \
db_check_access(addr,size,task)
#define DB_PHYS_EQ(task1,addr1,task2,addr2) \
db_phys_eq(task1,addr1,task2,addr2)
#define DB_VALID_KERN_ADDR(addr) \
((addr) >= VM_MIN_KERNEL_ADDRESS && \
(addr) < VM_MAX_KERNEL_ADDRESS)
#define DB_VALID_ADDRESS(addr,user) \
((!(user) && DB_VALID_KERN_ADDR(addr)) || \
((user) && (addr) < VM_MIN_KERNEL_ADDRESS))
boolean_t db_check_access(/* vm_offset_t, int, task_t */);
boolean_t db_phys_eq(/* task_t, vm_offset_t, task_t, vm_offset_t */);
/* macros for printing OS server dependent task name */
#define DB_TASK_NAME(task) db_task_name(task)
#define DB_TASK_NAME_TITLE "COMMAND "
#define DB_TASK_NAME_LEN 23
#define DB_NULL_TASK_NAME "? "
void db_task_name(/* task_t */);
/* macro for checking if a thread has used floating point */
#define db_thread_fp_used(thread) ((thread)->pcb->fps && (thread)->pcb->fps->valid)
#endif
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