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/* $FreeBSD$ */
/* $NetBSD: db_machdep.h,v 1.6 1997/09/06 02:02:25 thorpej Exp $ */
/*
* Copyright (c) 1995 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* 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 the
* rights to redistribute these changes.
*/
#ifndef _MACHINE_DB_MACHDEP_H_
#define _MACHINE_DB_MACHDEP_H_
/*
* Machine-dependent defines for new kernel debugger.
*/
#include <sys/param.h>
#include <vm/vm.h>
#include <machine/frame.h>
#include <machine/ia64_cpu.h>
#define DB_NO_AOUT
struct ia64_bundle;
typedef vm_offset_t db_addr_t; /* address - unsigned */
typedef long db_expr_t; /* expression - signed */
typedef struct trapframe db_regs_t;
extern db_regs_t ddb_regs; /* register state */
#define DDB_REGS (&ddb_regs)
#define PC_REGS(regs) ((db_addr_t)(regs)->tf_special.iip + \
(((regs)->tf_special.psr >> 41) & 3))
#define BKPT_WRITE(addr, storage) db_write_breakpoint(addr, storage)
#define BKPT_CLEAR(addr, storage) db_clear_breakpoint(addr, storage)
#define BKPT_INST_TYPE u_int64_t
#define BKPT_SKIP db_skip_breakpoint()
#define db_clear_single_step(regs) ddb_regs.tf_special.psr &= ~IA64_PSR_SS
#define db_set_single_step(regs) ddb_regs.tf_special.psr |= IA64_PSR_SS
#define IS_BREAKPOINT_TRAP(type, code) (type == IA64_VEC_BREAK)
#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 & 0)
#define inst_branch(ins) (ins & 0)
#define inst_load(ins) (ins & 0)
#define inst_store(ins) (ins & 0)
#define inst_unconditional_flow_transfer(ins) (ins & 0)
#define branch_taken(ins, pc, regs) pc
/*
* Functions needed for software single-stepping.
*/
/* No delay slots on Alpha. */
#define next_instr_address(v, b) ((db_addr_t) ((b) ? (v) : ((v) + 4)))
u_long db_register_value(db_regs_t *, int);
int kdb_trap(int vector, struct trapframe *regs);
u_int64_t *db_rse_current_frame(void);
u_int64_t *db_rse_previous_frame(u_int64_t *bsp, int sof);
u_int64_t *db_rse_register_address(u_int64_t *bsp, int regno);
void db_read_bundle(db_addr_t addr, struct ia64_bundle *bp);
void db_write_bundle(db_addr_t addr, struct ia64_bundle *bp);
void db_write_breakpoint(db_addr_t addr, u_int64_t *storage);
void db_clear_breakpoint(db_addr_t addr, u_int64_t *storage);
void db_skip_breakpoint(void);
/*
* Pretty arbitrary
*/
#define DB_SMALL_VALUE_MAX 0x7fffffff
#define DB_SMALL_VALUE_MIN (-0x400001)
/*
* We define some of our own commands.
*/
#define DB_MACHINE_COMMANDS
/*
* We use Elf64 symbols in DDB.
*/
#define DB_ELFSIZE 64
#endif /* _MACHINE_DB_MACHDEP_H_ */
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