132 lines
4.1 KiB
C
132 lines
4.1 KiB
C
/* $NetBSD: db_machdep.h,v 1.3 1994/10/26 08:24:24 cgd 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 <mach/ns532/vm_types.h> */
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/* #include <mach/ns532/vm_param.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 <vm/lock.h>
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/* #include <ns532/thread.h> /* for thread_status */
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#include <machine/frame.h> /* For struct trapframe */
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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 int db_expr_t; /* expression - signed */
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typedef struct ns532_saved_state 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)->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 FIXUP_PC_AFTER_BREAK ddb_regs.pc -= 1; */
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#define db_clear_single_step(regs) ((regs)->psr &= ~PSR_T)
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#define db_set_single_step(regs) ((regs)->psr |= PSR_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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/* access capability and access macros */
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#define DB_ACCESS_LEVEL 2 /* access any space */
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#define DB_CHECK_ACCESS(addr,size,task) \
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db_check_access(addr,size,task)
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#define DB_PHYS_EQ(task1,addr1,task2,addr2) \
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db_phys_eq(task1,addr1,task2,addr2)
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#define DB_VALID_KERN_ADDR(addr) \
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((addr) >= VM_MIN_KERNEL_ADDRESS && \
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(addr) < VM_MAX_KERNEL_ADDRESS)
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#define DB_VALID_ADDRESS(addr,user) \
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((!(user) && DB_VALID_KERN_ADDR(addr)) || \
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((user) && (addr) < VM_MIN_KERNEL_ADDRESS))
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boolean_t db_check_access(/* vm_offset_t, int, task_t */);
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boolean_t db_phys_eq(/* task_t, vm_offset_t, task_t, vm_offset_t */);
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/* macros for printing OS server dependent task name */
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#define DB_TASK_NAME(task) db_task_name(task)
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#define DB_TASK_NAME_TITLE "COMMAND "
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#define DB_TASK_NAME_LEN 23
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#define DB_NULL_TASK_NAME "? "
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void db_task_name(/* task_t */);
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/* macro for checking if a thread has used floating point */
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#define db_thread_fp_used(thread) ((thread)->pcb->fps && (thread)->pcb->fps->valid)
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#endif
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